Add launcher catalog workflow and smoke tests

app/assets/images/icons/arrow.svg

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+    <title>arrow</title>
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+</svg>

app/assets/images/icons/discord.svg

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app/assets/images/icons/github-mark-white.svg

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+</svg>

app/assets/images/icons/home.svg

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+	</g>
+</svg>

app/assets/images/icons/instagram.svg

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+        <clipPath id="clip-path"><rect class="cls-1" x="29.3" y="52.62" width="82.77" height="34.15"/></clipPath>
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+</svg>

app/assets/images/icons/lock.svg

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app/assets/images/icons/map.svg

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app/assets/images/icons/microsoft.svg

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app/assets/images/icons/mojang.svg

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app/assets/images/icons/news.svg

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+    <title>News</title>
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app/assets/images/icons/profile.svg

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+    <title>Profile</title>
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app/assets/images/icons/settings.svg

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+        <clipPath id="clip-path"><rect class="cls-1" x="45.65" y="42.62" width="49.58" height="52.43"/></clipPath>
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app/assets/images/icons/sevenstar.svg

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app/assets/images/icons/sevenstar_circle_extended.svg

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app/assets/images/icons/sevenstar_circle_hole.svg

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+    </defs>
+    <title>Seven Pointed Star with Circle and Hole</title>
+    <polygon class="cls-1" points="43.83 52.37 48.83 14.03 53.83 52.37 43.83 52.37"/>
+    <polygon class="cls-1" points="45.71 56.28 18.85 28.47 51.95 48.46 45.71 56.28"/>
+    <polygon class="cls-1" points="49.94 57.25 11.45 60.9 47.72 47.5 49.94 57.25"/>
+    <polygon class="cls-1" points="53.34 54.54 32.19 86.92 44.33 50.2 53.34 54.54"/>
+    <polygon class="cls-1" points="53.34 50.2 65.47 86.92 44.33 54.54 53.34 50.2"/>
+    <polygon class="cls-1" points="49.94 47.5 86.21 60.91 47.72 57.25 49.94 47.5"/>
+    <polygon class="cls-1" points="45.71 48.46 78.81 28.47 51.95 56.28 45.71 48.46"/>
+    <circle class="cls-2" cx="48.83" cy="52.37" r="38"/>
+    <circle class="cls-3" cx="48.83" cy="52.37" r="4.56"/>
+</svg>

app/assets/images/icons/sevenstar_circle_hole_extended.svg

@@ -0,0 +1,9 @@
+<svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 107.45 104.74">
+    <defs>
+        <style>.cls-1{fill:#1a171b;}.cls-2{fill:none;stroke:#1a171b;stroke-miterlimit:10;}.cls-3{fill:#fff;}</style>
+    </defs>
+    <title>Seven Pointed Star Extended with Circle and Hole</title>
+    <path class="cls-1" d="M100.93,65.54C89,62,68.18,55.65,63.54,52.13c2.7-5.23,18.8-19.2,28-27.55C81.36,31.74,63.74,43.87,58.09,45.3c-2.41-5.37-3.61-26.52-4.37-39-.77,12.46-2,33.64-4.36,39-5.7-1.46-23.3-13.57-33.49-20.72,9.26,8.37,25.39,22.36,28,27.55C39.21,55.68,18.47,62,6.52,65.55c12.32-2,33.63-6.06,39.34-4.9-.16,5.87-8.41,26.16-13.11,37.69,6.1-10.89,16.52-30.16,21-33.9,4.5,3.79,14.93,23.09,21,34C70,86.84,61.73,66.48,61.59,60.65,67.36,59.49,88.64,63.52,100.93,65.54Z"/>
+    <circle class="cls-2" cx="53.73" cy="53.9" r="38"/>
+    <circle class="cls-3" cx="53.73" cy="53.9" r="4.56"/>
+</svg>

app/assets/images/icons/sevenstar_extended.svg

@@ -0,0 +1,7 @@
+<svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 107.45 104.74">
+    <defs>
+        <style>.cls-1{fill:#1a171b;}</style>
+    </defs>
+    <title>Seven Pointed Star Extended</title>
+    <path class="cls-1" d="M100.93,65.54C89,62,68.18,55.65,63.54,52.13c2.7-5.23,18.8-19.2,28-27.55C81.36,31.74,63.74,43.87,58.09,45.3c-2.41-5.37-3.61-26.52-4.37-39-.77,12.46-2,33.64-4.36,39-5.7-1.46-23.3-13.57-33.49-20.72,9.26,8.37,25.39,22.36,28,27.55C39.21,55.68,18.47,62,6.52,65.55c12.32-2,33.63-6.06,39.34-4.9-.16,5.87-8.41,26.16-13.11,37.69,6.1-10.89,16.52-30.16,21-33.9,4.5,3.79,14.93,23.09,21,34C70,86.84,61.73,66.48,61.59,60.65,67.36,59.49,88.64,63.52,100.93,65.54Z"/>
+</svg>

app/assets/images/icons/x.svg

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="300" height="271" xmlns="http://www.w3.org/2000/svg">
+ <path d="m236 0h46l-101 115 118 156h-92.6l-72.5-94.8-83 94.8h-46l107-123-113-148h94.9l65.5 86.6zm-16.1 244h25.5l-165-218h-27.4z"/>
+</svg>

app/assets/images/icons/youtube.svg

@@ -0,0 +1,10 @@
+<svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 141.36 137.43">
+    <defs>
+        <style>.cls-1{fill:none;}.cls-2{clip-path:url(#clip-path);}</style>
+        <clipPath id="clip-path"><rect class="cls-1" x="38.29" y="45.86" width="70.16" height="48.48"/></clipPath>
+    </defs>
+    <title>youtube</title>
+    <g class="cls-2">
+        <path d="M84.8,69.52,65.88,79.76V59.27Zm23.65.59c0-5.14-.79-17.63-3.94-20.57S99,45.86,73.37,45.86s-28,.73-31.14,3.68S38.29,65,38.29,70.11s.79,17.63,3.94,20.57,5.52,3.68,31.14,3.68,28-.74,31.14-3.68,3.94-15.42,3.94-20.57"/>
+    </g>
+</svg>

app/assets/js/authmanager.js

@@ -0,0 +1,425 @@
+/**
+ * AuthManager
+ * 
+ * This module aims to abstract login procedures. Results from Mojang's REST api
+ * are retrieved through our Mojang module. These results are processed and stored,
+ * if applicable, in the config using the ConfigManager. All login procedures should
+ * be made through this module.
+ * 
+ * @module authmanager
+ */
+// Requirements
+const ConfigManager          = require('./configmanager')
+const { LoggerUtil }         = require('helios-core')
+const { RestResponseStatus } = require('helios-core/common')
+const { MojangRestAPI, MojangErrorCode } = require('helios-core/mojang')
+const { MicrosoftAuth, MicrosoftErrorCode } = require('helios-core/microsoft')
+const { AZURE_CLIENT_ID }    = require('./ipcconstants')
+const Lang = require('./langloader')
+
+const log = LoggerUtil.getLogger('AuthManager')
+
+// Error messages
+
+function microsoftErrorDisplayable(errorCode) {
+    switch (errorCode) {
+        case MicrosoftErrorCode.NO_PROFILE:
+            return {
+                title: Lang.queryJS('auth.microsoft.error.noProfileTitle'),
+                desc: Lang.queryJS('auth.microsoft.error.noProfileDesc')
+            }
+        case MicrosoftErrorCode.NO_XBOX_ACCOUNT:
+            return {
+                title: Lang.queryJS('auth.microsoft.error.noXboxAccountTitle'),
+                desc: Lang.queryJS('auth.microsoft.error.noXboxAccountDesc')
+            }
+        case MicrosoftErrorCode.XBL_BANNED:
+            return {
+                title: Lang.queryJS('auth.microsoft.error.xblBannedTitle'),
+                desc: Lang.queryJS('auth.microsoft.error.xblBannedDesc')
+            }
+        case MicrosoftErrorCode.UNDER_18:
+            return {
+                title: Lang.queryJS('auth.microsoft.error.under18Title'),
+                desc: Lang.queryJS('auth.microsoft.error.under18Desc')
+            }
+        case MicrosoftErrorCode.UNKNOWN:
+            return {
+                title: Lang.queryJS('auth.microsoft.error.unknownTitle'),
+                desc: Lang.queryJS('auth.microsoft.error.unknownDesc')
+            }
+    }
+}
+
+function mojangErrorDisplayable(errorCode) {
+    switch(errorCode) {
+        case MojangErrorCode.ERROR_METHOD_NOT_ALLOWED:
+            return {
+                title: Lang.queryJS('auth.mojang.error.methodNotAllowedTitle'),
+                desc: Lang.queryJS('auth.mojang.error.methodNotAllowedDesc')
+            }
+        case MojangErrorCode.ERROR_NOT_FOUND:
+            return {
+                title: Lang.queryJS('auth.mojang.error.notFoundTitle'),
+                desc: Lang.queryJS('auth.mojang.error.notFoundDesc')
+            }
+        case MojangErrorCode.ERROR_USER_MIGRATED:
+            return {
+                title: Lang.queryJS('auth.mojang.error.accountMigratedTitle'),
+                desc: Lang.queryJS('auth.mojang.error.accountMigratedDesc')
+            }
+        case MojangErrorCode.ERROR_INVALID_CREDENTIALS:
+            return {
+                title: Lang.queryJS('auth.mojang.error.invalidCredentialsTitle'),
+                desc: Lang.queryJS('auth.mojang.error.invalidCredentialsDesc')
+            }
+        case MojangErrorCode.ERROR_RATELIMIT:
+            return {
+                title: Lang.queryJS('auth.mojang.error.tooManyAttemptsTitle'),
+                desc: Lang.queryJS('auth.mojang.error.tooManyAttemptsDesc')
+            }
+        case MojangErrorCode.ERROR_INVALID_TOKEN:
+            return {
+                title: Lang.queryJS('auth.mojang.error.invalidTokenTitle'),
+                desc: Lang.queryJS('auth.mojang.error.invalidTokenDesc')
+            }
+        case MojangErrorCode.ERROR_ACCESS_TOKEN_HAS_PROFILE:
+            return {
+                title: Lang.queryJS('auth.mojang.error.tokenHasProfileTitle'),
+                desc: Lang.queryJS('auth.mojang.error.tokenHasProfileDesc')
+            }
+        case MojangErrorCode.ERROR_CREDENTIALS_MISSING:
+            return {
+                title: Lang.queryJS('auth.mojang.error.credentialsMissingTitle'),
+                desc: Lang.queryJS('auth.mojang.error.credentialsMissingDesc')
+            }
+        case MojangErrorCode.ERROR_INVALID_SALT_VERSION:
+            return {
+                title: Lang.queryJS('auth.mojang.error.invalidSaltVersionTitle'),
+                desc: Lang.queryJS('auth.mojang.error.invalidSaltVersionDesc')
+            }
+        case MojangErrorCode.ERROR_UNSUPPORTED_MEDIA_TYPE:
+            return {
+                title: Lang.queryJS('auth.mojang.error.unsupportedMediaTypeTitle'),
+                desc: Lang.queryJS('auth.mojang.error.unsupportedMediaTypeDesc')
+            }
+        case MojangErrorCode.ERROR_GONE:
+            return {
+                title: Lang.queryJS('auth.mojang.error.accountGoneTitle'),
+                desc: Lang.queryJS('auth.mojang.error.accountGoneDesc')
+            }
+        case MojangErrorCode.ERROR_UNREACHABLE:
+            return {
+                title: Lang.queryJS('auth.mojang.error.unreachableTitle'),
+                desc: Lang.queryJS('auth.mojang.error.unreachableDesc')
+            }
+        case MojangErrorCode.ERROR_NOT_PAID:
+            return {
+                title: Lang.queryJS('auth.mojang.error.gameNotPurchasedTitle'),
+                desc: Lang.queryJS('auth.mojang.error.gameNotPurchasedDesc')
+            }
+        case MojangErrorCode.UNKNOWN:
+            return {
+                title: Lang.queryJS('auth.mojang.error.unknownErrorTitle'),
+                desc: Lang.queryJS('auth.mojang.error.unknownErrorDesc')
+            }
+        default:
+            throw new Error(`Unknown error code: ${errorCode}`)
+    }
+}
+
+// Functions
+
+/**
+ * Add a Mojang account. This will authenticate the given credentials with Mojang's
+ * authserver. The resultant data will be stored as an auth account in the
+ * configuration database.
+ * 
+ * @param {string} username The account username (email if migrated).
+ * @param {string} password The account password.
+ * @returns {Promise.<Object>} Promise which resolves the resolved authenticated account object.
+ */
+exports.addMojangAccount = async function(username, password) {
+    try {
+        const response = await MojangRestAPI.authenticate(username, password, ConfigManager.getClientToken())
+        console.log(response)
+        if(response.responseStatus === RestResponseStatus.SUCCESS) {
+
+            const session = response.data
+            if(session.selectedProfile != null){
+                const ret = ConfigManager.addMojangAuthAccount(session.selectedProfile.id, session.accessToken, username, session.selectedProfile.name)
+                if(ConfigManager.getClientToken() == null){
+                    ConfigManager.setClientToken(session.clientToken)
+                }
+                ConfigManager.save()
+                return ret
+            } else {
+                return Promise.reject(mojangErrorDisplayable(MojangErrorCode.ERROR_NOT_PAID))
+            }
+
+        } else {
+            return Promise.reject(mojangErrorDisplayable(response.mojangErrorCode))
+        }
+        
+    } catch (err){
+        log.error(err)
+        return Promise.reject(mojangErrorDisplayable(MojangErrorCode.UNKNOWN))
+    }
+}
+
+const AUTH_MODE = { FULL: 0, MS_REFRESH: 1, MC_REFRESH: 2 }
+
+/**
+ * Perform the full MS Auth flow in a given mode.
+ * 
+ * AUTH_MODE.FULL = Full authorization for a new account.
+ * AUTH_MODE.MS_REFRESH = Full refresh authorization.
+ * AUTH_MODE.MC_REFRESH = Refresh of the MC token, reusing the MS token.
+ * 
+ * @param {string} entryCode FULL-AuthCode. MS_REFRESH=refreshToken, MC_REFRESH=accessToken
+ * @param {*} authMode The auth mode.
+ * @returns An object with all auth data. AccessToken object will be null when mode is MC_REFRESH.
+ */
+async function fullMicrosoftAuthFlow(entryCode, authMode) {
+    try {
+
+        let accessTokenRaw
+        let accessToken
+        if(authMode !== AUTH_MODE.MC_REFRESH) {
+            const accessTokenResponse = await MicrosoftAuth.getAccessToken(entryCode, authMode === AUTH_MODE.MS_REFRESH, AZURE_CLIENT_ID)
+            if(accessTokenResponse.responseStatus === RestResponseStatus.ERROR) {
+                return Promise.reject(microsoftErrorDisplayable(accessTokenResponse.microsoftErrorCode))
+            }
+            accessToken = accessTokenResponse.data
+            accessTokenRaw = accessToken.access_token
+        } else {
+            accessTokenRaw = entryCode
+        }
+        
+        const xblResponse = await MicrosoftAuth.getXBLToken(accessTokenRaw)
+        if(xblResponse.responseStatus === RestResponseStatus.ERROR) {
+            return Promise.reject(microsoftErrorDisplayable(xblResponse.microsoftErrorCode))
+        }
+        const xstsResonse = await MicrosoftAuth.getXSTSToken(xblResponse.data)
+        if(xstsResonse.responseStatus === RestResponseStatus.ERROR) {
+            return Promise.reject(microsoftErrorDisplayable(xstsResonse.microsoftErrorCode))
+        }
+        const mcTokenResponse = await MicrosoftAuth.getMCAccessToken(xstsResonse.data)
+        if(mcTokenResponse.responseStatus === RestResponseStatus.ERROR) {
+            return Promise.reject(microsoftErrorDisplayable(mcTokenResponse.microsoftErrorCode))
+        }
+        const mcProfileResponse = await MicrosoftAuth.getMCProfile(mcTokenResponse.data.access_token)
+        if(mcProfileResponse.responseStatus === RestResponseStatus.ERROR) {
+            return Promise.reject(microsoftErrorDisplayable(mcProfileResponse.microsoftErrorCode))
+        }
+        return {
+            accessToken,
+            accessTokenRaw,
+            xbl: xblResponse.data,
+            xsts: xstsResonse.data,
+            mcToken: mcTokenResponse.data,
+            mcProfile: mcProfileResponse.data
+        }
+    } catch(err) {
+        log.error(err)
+        return Promise.reject(microsoftErrorDisplayable(MicrosoftErrorCode.UNKNOWN))
+    }
+}
+
+/**
+ * Calculate the expiry date. Advance the expiry time by 10 seconds
+ * to reduce the liklihood of working with an expired token.
+ * 
+ * @param {number} nowMs Current time milliseconds.
+ * @param {number} epiresInS Expires in (seconds)
+ * @returns 
+ */
+function calculateExpiryDate(nowMs, epiresInS) {
+    return nowMs + ((epiresInS-10)*1000)
+}
+
+/**
+ * Add a Microsoft account. This will pass the provided auth code to Mojang's OAuth2.0 flow.
+ * The resultant data will be stored as an auth account in the configuration database.
+ * 
+ * @param {string} authCode The authCode obtained from microsoft.
+ * @returns {Promise.<Object>} Promise which resolves the resolved authenticated account object.
+ */
+exports.addMicrosoftAccount = async function(authCode) {
+
+    const fullAuth = await fullMicrosoftAuthFlow(authCode, AUTH_MODE.FULL)
+
+    // Advance expiry by 10 seconds to avoid close calls.
+    const now = new Date().getTime()
+
+    const ret = ConfigManager.addMicrosoftAuthAccount(
+        fullAuth.mcProfile.id,
+        fullAuth.mcToken.access_token,
+        fullAuth.mcProfile.name,
+        calculateExpiryDate(now, fullAuth.mcToken.expires_in),
+        fullAuth.accessToken.access_token,
+        fullAuth.accessToken.refresh_token,
+        calculateExpiryDate(now, fullAuth.accessToken.expires_in)
+    )
+    ConfigManager.save()
+
+    return ret
+}
+
+/**
+ * Remove a Mojang account. This will invalidate the access token associated
+ * with the account and then remove it from the database.
+ * 
+ * @param {string} uuid The UUID of the account to be removed.
+ * @returns {Promise.<void>} Promise which resolves to void when the action is complete.
+ */
+exports.removeMojangAccount = async function(uuid){
+    try {
+        const authAcc = ConfigManager.getAuthAccount(uuid)
+        const response = await MojangRestAPI.invalidate(authAcc.accessToken, ConfigManager.getClientToken())
+        if(response.responseStatus === RestResponseStatus.SUCCESS) {
+            ConfigManager.removeAuthAccount(uuid)
+            ConfigManager.save()
+            return Promise.resolve()
+        } else {
+            log.error('Error while removing account', response.error)
+            return Promise.reject(response.error)
+        }
+    } catch (err){
+        log.error('Error while removing account', err)
+        return Promise.reject(err)
+    }
+}
+
+/**
+ * Remove a Microsoft account. It is expected that the caller will invoke the OAuth logout
+ * through the ipc renderer.
+ * 
+ * @param {string} uuid The UUID of the account to be removed.
+ * @returns {Promise.<void>} Promise which resolves to void when the action is complete.
+ */
+exports.removeMicrosoftAccount = async function(uuid){
+    try {
+        ConfigManager.removeAuthAccount(uuid)
+        ConfigManager.save()
+        return Promise.resolve()
+    } catch (err){
+        log.error('Error while removing account', err)
+        return Promise.reject(err)
+    }
+}
+
+/**
+ * Validate the selected account with Mojang's authserver. If the account is not valid,
+ * we will attempt to refresh the access token and update that value. If that fails, a
+ * new login will be required.
+ * 
+ * @returns {Promise.<boolean>} Promise which resolves to true if the access token is valid,
+ * otherwise false.
+ */
+async function validateSelectedMojangAccount(){
+    const current = ConfigManager.getSelectedAccount()
+    const response = await MojangRestAPI.validate(current.accessToken, ConfigManager.getClientToken())
+
+    if(response.responseStatus === RestResponseStatus.SUCCESS) {
+        const isValid = response.data
+        if(!isValid){
+            const refreshResponse = await MojangRestAPI.refresh(current.accessToken, ConfigManager.getClientToken())
+            if(refreshResponse.responseStatus === RestResponseStatus.SUCCESS) {
+                const session = refreshResponse.data
+                ConfigManager.updateMojangAuthAccount(current.uuid, session.accessToken)
+                ConfigManager.save()
+            } else {
+                log.error('Error while validating selected profile:', refreshResponse.error)
+                log.info('Account access token is invalid.')
+                return false
+            }
+            log.info('Account access token validated.')
+            return true
+        } else {
+            log.info('Account access token validated.')
+            return true
+        }
+    }
+    
+}
+
+/**
+ * Validate the selected account with Microsoft's authserver. If the account is not valid,
+ * we will attempt to refresh the access token and update that value. If that fails, a
+ * new login will be required.
+ * 
+ * @returns {Promise.<boolean>} Promise which resolves to true if the access token is valid,
+ * otherwise false.
+ */
+async function validateSelectedMicrosoftAccount(){
+    const current = ConfigManager.getSelectedAccount()
+    const now = new Date().getTime()
+    const mcExpiresAt = current.expiresAt
+    const mcExpired = now >= mcExpiresAt
+
+    if(!mcExpired) {
+        return true
+    }
+
+    // MC token expired. Check MS token.
+
+    const msExpiresAt = current.microsoft.expires_at
+    const msExpired = now >= msExpiresAt
+
+    if(msExpired) {
+        // MS expired, do full refresh.
+        try {
+            const res = await fullMicrosoftAuthFlow(current.microsoft.refresh_token, AUTH_MODE.MS_REFRESH)
+
+            ConfigManager.updateMicrosoftAuthAccount(
+                current.uuid,
+                res.mcToken.access_token,
+                res.accessToken.access_token,
+                res.accessToken.refresh_token,
+                calculateExpiryDate(now, res.accessToken.expires_in),
+                calculateExpiryDate(now, res.mcToken.expires_in)
+            )
+            ConfigManager.save()
+            return true
+        } catch(_err) {
+            return false
+        }
+    } else {
+        // Only MC expired, use existing MS token.
+        try {
+            const res = await fullMicrosoftAuthFlow(current.microsoft.access_token, AUTH_MODE.MC_REFRESH)
+
+            ConfigManager.updateMicrosoftAuthAccount(
+                current.uuid,
+                res.mcToken.access_token,
+                current.microsoft.access_token,
+                current.microsoft.refresh_token,
+                current.microsoft.expires_at,
+                calculateExpiryDate(now, res.mcToken.expires_in)
+            )
+            ConfigManager.save()
+            return true
+        }
+        catch(_err) {
+            return false
+        }
+    }
+}
+
+/**
+ * Validate the selected auth account.
+ * 
+ * @returns {Promise.<boolean>} Promise which resolves to true if the access token is valid,
+ * otherwise false.
+ */
+exports.validateSelected = async function(){
+    const current = ConfigManager.getSelectedAccount()
+
+    if(current.type === 'microsoft') {
+        return await validateSelectedMicrosoftAccount()
+    } else {
+        return await validateSelectedMojangAccount()
+    }
+    
+}

app/assets/js/catalogmanager.js

@@ -0,0 +1,234 @@
+const fs = require('fs-extra')
+const got = require('got')
+const path = require('path')
+
+const ConfigManager = require('./configmanager')
+const { DEFAULT_REMOTE_DISTRO_URL, setRemoteDistributionUrl } = require('./distromanager')
+
+const LOCAL_CATALOG_PATH = path.join(__dirname, '..', 'launcher', 'catalog.json')
+
+function normalizeText(value){
+    return typeof value === 'string' ? value.trim() : ''
+}
+
+function normalizeNullableText(value){
+    const nextValue = normalizeText(value)
+    return nextValue.length > 0 ? nextValue : null
+}
+
+function toStoredProfile(rawProfile){
+    const kind = normalizeText(rawProfile.kind) || 'modpack'
+    const storedProfile = {
+        id: normalizeText(rawProfile.id),
+        name: normalizeText(rawProfile.name),
+        kind,
+        description: normalizeText(rawProfile.description),
+        details: normalizeText(rawProfile.details),
+        distributionUrl: normalizeNullableText(rawProfile.distributionUrl),
+        defaultServerAddress: normalizeText(rawProfile.defaultServerAddress),
+        allowCustomServerAddress: rawProfile.allowCustomServerAddress === true,
+        worldArchiveUrl: normalizeNullableText(rawProfile.worldArchiveUrl),
+        worldDirectoryName: normalizeNullableText(rawProfile.worldDirectoryName),
+        serverBundleUrl: normalizeNullableText(rawProfile.serverBundleUrl),
+        serverDirectoryName: normalizeText(rawProfile.serverDirectoryName) || 'server',
+        serverLaunchCommand: normalizeNullableText(rawProfile.serverLaunchCommand),
+        serverWorkingDirectory: normalizeNullableText(rawProfile.serverWorkingDirectory),
+        serverPort: Number.isFinite(Number(rawProfile.serverPort)) ? Number(rawProfile.serverPort) : 25565,
+        tunnelCommand: normalizeNullableText(rawProfile.tunnelCommand),
+        tunnelAddressRegex: normalizeNullableText(rawProfile.tunnelAddressRegex),
+        artwork: normalizeText(rawProfile.artwork)
+    }
+
+    if(kind !== 'map'){
+        storedProfile.worldArchiveUrl = null
+        storedProfile.worldDirectoryName = null
+    }
+
+    if(kind !== 'server-pack'){
+        storedProfile.serverBundleUrl = null
+        storedProfile.serverDirectoryName = 'server'
+        storedProfile.serverLaunchCommand = null
+        storedProfile.serverWorkingDirectory = null
+        storedProfile.serverPort = 25565
+        storedProfile.tunnelCommand = null
+        storedProfile.tunnelAddressRegex = null
+    }
+
+    return storedProfile
+}
+
+function normalizeProfile(rawProfile, sourceType = 'catalog'){
+    const storedProfile = toStoredProfile(rawProfile)
+    const launchIssues = []
+    const hostIssues = []
+
+    if(storedProfile.distributionUrl == null){
+        launchIssues.push('distribution URL이 필요합니다.')
+    }
+
+    if(storedProfile.kind === 'map'){
+        if(storedProfile.worldArchiveUrl == null){
+            launchIssues.push('맵 ZIP 또는 로컬 월드 경로가 필요합니다.')
+        }
+        if(storedProfile.worldDirectoryName == null){
+            launchIssues.push('월드 폴더 이름이 필요합니다.')
+        }
+    }
+
+    if(storedProfile.kind === 'server-pack' && storedProfile.serverBundleUrl == null){
+        hostIssues.push('로컬 호스팅을 하려면 서버 번들 ZIP 또는 디렉터리 경로가 필요합니다.')
+    }
+
+    const launchReady = launchIssues.length === 0
+    const hostReady = storedProfile.kind === 'server-pack' ? hostIssues.length === 0 : false
+
+    return {
+        ...storedProfile,
+        sourceType,
+        isCustom: sourceType === 'custom',
+        configured: launchReady,
+        launchReady,
+        launchIssues,
+        hostReady,
+        hostIssues
+    }
+}
+
+function resolveCatalogFileSource(source){
+    if(source.startsWith('file://')){
+        return decodeURIComponent(source.substring('file://'.length))
+    }
+    return path.resolve(source)
+}
+
+async function readCatalogSource(source){
+    if(/^https?:\/\//i.test(source)){
+        return got(source, {
+            responseType: 'json'
+        }).json()
+    }
+
+    return fs.readJson(resolveCatalogFileSource(source))
+}
+
+exports.getLocalCatalogPath = function(){
+    return LOCAL_CATALOG_PATH
+}
+
+exports.loadCatalog = async function(){
+    const configuredSource = ConfigManager.getLibraryCatalogSource()
+    const source = configuredSource != null && configuredSource.trim().length > 0 ? configuredSource.trim() : LOCAL_CATALOG_PATH
+    let rawCatalog = {
+        version: 1,
+        profiles: []
+    }
+    let sourceError = null
+
+    try {
+        rawCatalog = await readCatalogSource(source)
+    } catch (error) {
+        sourceError = error
+    }
+
+    const rawProfiles = Array.isArray(rawCatalog.profiles) ? rawCatalog.profiles : []
+
+    return {
+        version: rawCatalog.version ?? 1,
+        source,
+        sourceError,
+        profiles: rawProfiles
+            .filter((profile) => profile != null && typeof profile.id === 'string' && typeof profile.name === 'string')
+            .map((profile) => normalizeProfile(profile, 'catalog'))
+            .sort((left, right) => left.name.localeCompare(right.name, 'ko'))
+    }
+}
+
+exports.getInstalledProfiles = async function(){
+    const catalog = await exports.loadCatalog()
+    const installedProfiles = ConfigManager.getInstalledLibraryProfiles()
+
+    return installedProfiles.map((installedProfile) => {
+        const latestProfile = catalog.profiles.find((profile) => profile.id === installedProfile.id)
+        return latestProfile != null
+            ? {
+                ...installedProfile,
+                ...latestProfile,
+                installedAt: installedProfile.installedAt
+            }
+            : installedProfile
+    })
+}
+
+exports.installProfile = async function(profileId){
+    const catalog = await exports.loadCatalog()
+    const profile = catalog.profiles.find((entry) => entry.id === profileId)
+
+    if(profile == null){
+        throw new Error(`Unknown profile: ${profileId}`)
+    }
+
+    const installedProfile = {
+        ...profile,
+        installedAt: new Date().toISOString()
+    }
+
+    ConfigManager.upsertInstalledLibraryProfile(installedProfile)
+
+    if(ConfigManager.getSelectedLibraryProfile() == null){
+        ConfigManager.setSelectedLibraryProfile(profile.id)
+    }
+
+    ConfigManager.save()
+    return installedProfile
+}
+
+exports.removeProfile = function(profileId){
+    ConfigManager.removeInstalledLibraryProfile(profileId)
+    ConfigManager.save()
+}
+
+exports.selectProfile = function(profileId){
+    ConfigManager.setSelectedLibraryProfile(profileId)
+    ConfigManager.save()
+}
+
+exports.getSelectedProfileId = function(){
+    return ConfigManager.getSelectedLibraryProfile()
+}
+
+exports.getSelectedProfileSync = function(){
+    const selectedProfileId = ConfigManager.getSelectedLibraryProfile()
+    if(selectedProfileId == null){
+        return null
+    }
+    return ConfigManager.getInstalledLibraryProfile(selectedProfileId)
+}
+
+exports.resolveServerAddress = function(profile){
+    if(profile == null){
+        return null
+    }
+
+    const manualAddress = ConfigManager.getLibraryServerAddressOverride(profile.id)
+    if(manualAddress != null && manualAddress.length > 0){
+        return manualAddress
+    }
+
+    if(typeof profile.defaultServerAddress === 'string' && profile.defaultServerAddress.length > 0){
+        return profile.defaultServerAddress
+    }
+
+    return null
+}
+
+exports.setServerAddressOverride = function(profileId, address){
+    ConfigManager.setLibraryServerAddressOverride(profileId, address)
+    ConfigManager.save()
+}
+
+exports.applyConfiguredProfile = function(){
+    const selectedProfile = exports.getSelectedProfileSync()
+    const distributionUrl = selectedProfile?.distributionUrl ?? DEFAULT_REMOTE_DISTRO_URL
+    setRemoteDistributionUrl(distributionUrl)
+    return selectedProfile
+}

app/assets/js/discordwrapper.js

@@ -0,0 +1,52 @@
+// Work in progress
+const { LoggerUtil } = require('helios-core')
+
+const logger = LoggerUtil.getLogger('DiscordWrapper')
+
+const { Client } = require('discord-rpc-patch')
+
+const Lang = require('./langloader')
+
+let client
+let activity
+
+exports.initRPC = function(genSettings, servSettings, initialDetails = Lang.queryJS('discord.waiting')){
+    client = new Client({ transport: 'ipc' })
+
+    activity = {
+        details: initialDetails,
+        state: Lang.queryJS('discord.state', {shortId: servSettings.shortId}),
+        largeImageKey: servSettings.largeImageKey,
+        largeImageText: servSettings.largeImageText,
+        smallImageKey: genSettings.smallImageKey,
+        smallImageText: genSettings.smallImageText,
+        startTimestamp: new Date().getTime(),
+        instance: false
+    }
+
+    client.on('ready', () => {
+        logger.info('Discord RPC Connected')
+        client.setActivity(activity)
+    })
+    
+    client.login({clientId: genSettings.clientId}).catch(error => {
+        if(error.message.includes('ENOENT')) {
+            logger.info('Unable to initialize Discord Rich Presence, no client detected.')
+        } else {
+            logger.info('Unable to initialize Discord Rich Presence: ' + error.message, error)
+        }
+    })
+}
+
+exports.updateDetails = function(details){
+    activity.details = details
+    client.setActivity(activity)
+}
+
+exports.shutdownRPC = function(){
+    if(!client) return
+    client.clearActivity()
+    client.destroy()
+    client = null
+    activity = null
+}

app/assets/js/distromanager.js

@@ -0,0 +1,74 @@
+const { DistributionAPI } = require('helios-core/common')
+
+const ConfigManager = require('./configmanager')
+
+const DEFAULT_REMOTE_DISTRO_URL = 'https://cdn.mysticred.space/launcher/distribution.json'
+
+let remoteDistroUrl = DEFAULT_REMOTE_DISTRO_URL
+let activeApi = createApi(remoteDistroUrl)
+
+function createApi(url) {
+    const api = new DistributionAPI(
+        ConfigManager.getLauncherDirectory(),
+        null,
+        null,
+        url,
+        false
+    )
+
+    return api
+}
+
+function replaceApi(url) {
+    const nextApi = createApi(url)
+
+    if(activeApi != null){
+        if(typeof activeApi.commonDir !== 'undefined'){
+            nextApi.commonDir = activeApi.commonDir
+        }
+        if(typeof activeApi.instanceDir !== 'undefined'){
+            nextApi.instanceDir = activeApi.instanceDir
+        }
+        if(typeof activeApi.isDevMode === 'function' && activeApi.isDevMode()){
+            nextApi.toggleDevMode(true)
+        }
+    }
+
+    activeApi = nextApi
+    remoteDistroUrl = url
+}
+
+exports.DEFAULT_REMOTE_DISTRO_URL = DEFAULT_REMOTE_DISTRO_URL
+
+exports.getRemoteDistributionUrl = function() {
+    return remoteDistroUrl
+}
+
+exports.setRemoteDistributionUrl = function(url) {
+    if(url != null && url.trim().length > 0 && url !== remoteDistroUrl){
+        replaceApi(url)
+    }
+    return remoteDistroUrl
+}
+
+exports.resetRemoteDistributionUrl = function() {
+    replaceApi(DEFAULT_REMOTE_DISTRO_URL)
+    return remoteDistroUrl
+}
+
+exports.DistroAPI = new Proxy({}, {
+    get(_target, prop) {
+        const value = activeApi[prop]
+        if(typeof value === 'function'){
+            return value.bind(activeApi)
+        }
+        return value
+    },
+    set(_target, prop, value) {
+        activeApi[prop] = value
+        return true
+    },
+    has(_target, prop) {
+        return prop in activeApi
+    }
+})

app/assets/js/dropinmodutil.js

@@ -0,0 +1,238 @@
+const fs        = require('fs-extra')
+const path      = require('path')
+const { ipcRenderer, shell } = require('electron')
+const { SHELL_OPCODE } = require('./ipcconstants')
+
+// Group #1: File Name (without .disabled, if any)
+// Group #2: File Extension (jar, zip, or litemod)
+// Group #3: If it is disabled (if string 'disabled' is present)
+const MOD_REGEX = /^(.+(jar|zip|litemod))(?:\.(disabled))?$/
+const DISABLED_EXT = '.disabled'
+
+const SHADER_REGEX = /^(.+)\.zip$/
+const SHADER_OPTION = /shaderPack=(.+)/
+const SHADER_DIR = 'shaderpacks'
+const SHADER_CONFIG = 'optionsshaders.txt'
+
+/**
+ * Validate that the given directory exists. If not, it is
+ * created.
+ * 
+ * @param {string} modsDir The path to the mods directory.
+ */
+exports.validateDir = function(dir) {
+    fs.ensureDirSync(dir)
+}
+
+/**
+ * Scan for drop-in mods in both the mods folder and version
+ * safe mods folder.
+ * 
+ * @param {string} modsDir The path to the mods directory.
+ * @param {string} version The minecraft version of the server configuration.
+ * 
+ * @returns {{fullName: string, name: string, ext: string, disabled: boolean}[]}
+ * An array of objects storing metadata about each discovered mod.
+ */
+exports.scanForDropinMods = function(modsDir, version) {
+    const modsDiscovered = []
+    if(fs.existsSync(modsDir)){
+        let modCandidates = fs.readdirSync(modsDir)
+        let verCandidates = []
+        const versionDir = path.join(modsDir, version)
+        if(fs.existsSync(versionDir)){
+            verCandidates = fs.readdirSync(versionDir)
+        }
+        for(let file of modCandidates){
+            const match = MOD_REGEX.exec(file)
+            if(match != null){
+                modsDiscovered.push({
+                    fullName: match[0],
+                    name: match[1],
+                    ext: match[2],
+                    disabled: match[3] != null
+                })
+            }
+        }
+        for(let file of verCandidates){
+            const match = MOD_REGEX.exec(file)
+            if(match != null){
+                modsDiscovered.push({
+                    fullName: path.join(version, match[0]),
+                    name: match[1],
+                    ext: match[2],
+                    disabled: match[3] != null
+                })
+            }
+        }
+    }
+    return modsDiscovered
+}
+
+/**
+ * Add dropin mods.
+ * 
+ * @param {FileList} files The files to add.
+ * @param {string} modsDir The path to the mods directory.
+ */
+exports.addDropinMods = function(files, modsdir) {
+
+    exports.validateDir(modsdir)
+
+    for(let f of files) {
+        if(MOD_REGEX.exec(f.name) != null) {
+            fs.moveSync(f.path, path.join(modsdir, f.name))
+        }
+    }
+
+}
+
+/**
+ * Delete a drop-in mod from the file system.
+ * 
+ * @param {string} modsDir The path to the mods directory.
+ * @param {string} fullName The fullName of the discovered mod to delete.
+ * 
+ * @returns {Promise.<boolean>} True if the mod was deleted, otherwise false.
+ */
+exports.deleteDropinMod = async function(modsDir, fullName){
+
+    const res = await ipcRenderer.invoke(SHELL_OPCODE.TRASH_ITEM, path.join(modsDir, fullName))
+
+    if(!res.result) {
+        shell.beep()
+        console.error('Error deleting drop-in mod.', res.error)
+        return false
+    }
+
+    return true
+}
+
+/**
+ * Toggle a discovered mod on or off. This is achieved by either 
+ * adding or disabling the .disabled extension to the local file.
+ * 
+ * @param {string} modsDir The path to the mods directory.
+ * @param {string} fullName The fullName of the discovered mod to toggle.
+ * @param {boolean} enable Whether to toggle on or off the mod.
+ * 
+ * @returns {Promise.<void>} A promise which resolves when the mod has
+ * been toggled. If an IO error occurs the promise will be rejected.
+ */
+exports.toggleDropinMod = function(modsDir, fullName, enable){
+    return new Promise((resolve, reject) => {
+        const oldPath = path.join(modsDir, fullName)
+        const newPath = path.join(modsDir, enable ? fullName.substring(0, fullName.indexOf(DISABLED_EXT)) : fullName + DISABLED_EXT)
+
+        fs.rename(oldPath, newPath, (err) => {
+            if(err){
+                reject(err)
+            } else {
+                resolve()
+            }
+        })
+    })
+}
+
+/**
+ * Check if a drop-in mod is enabled.
+ * 
+ * @param {string} fullName The fullName of the discovered mod to toggle.
+ * @returns {boolean} True if the mod is enabled, otherwise false.
+ */
+exports.isDropinModEnabled = function(fullName){
+    return !fullName.endsWith(DISABLED_EXT)
+}
+
+/**
+ * Scan for shaderpacks inside the shaderpacks folder.
+ * 
+ * @param {string} instanceDir The path to the server instance directory.
+ * 
+ * @returns {{fullName: string, name: string}[]}
+ * An array of objects storing metadata about each discovered shaderpack.
+ */
+exports.scanForShaderpacks = function(instanceDir){
+    const shaderDir = path.join(instanceDir, SHADER_DIR)
+    const packsDiscovered = [{
+        fullName: 'OFF',
+        name: 'Off (Default)'
+    }]
+    if(fs.existsSync(shaderDir)){
+        let modCandidates = fs.readdirSync(shaderDir)
+        for(let file of modCandidates){
+            const match = SHADER_REGEX.exec(file)
+            if(match != null){
+                packsDiscovered.push({
+                    fullName: match[0],
+                    name: match[1]
+                })
+            }
+        }
+    }
+    return packsDiscovered
+}
+
+/**
+ * Read the optionsshaders.txt file to locate the current
+ * enabled pack. If the file does not exist, OFF is returned.
+ * 
+ * @param {string} instanceDir The path to the server instance directory.
+ * 
+ * @returns {string} The file name of the enabled shaderpack.
+ */
+exports.getEnabledShaderpack = function(instanceDir){
+    exports.validateDir(instanceDir)
+
+    const optionsShaders = path.join(instanceDir, SHADER_CONFIG)
+    if(fs.existsSync(optionsShaders)){
+        const buf = fs.readFileSync(optionsShaders, {encoding: 'utf-8'})
+        const match = SHADER_OPTION.exec(buf)
+        if(match != null){
+            return match[1]
+        } else {
+            console.warn('WARNING: Shaderpack regex failed.')
+        }
+    }
+    return 'OFF'
+}
+
+/**
+ * Set the enabled shaderpack.
+ * 
+ * @param {string} instanceDir The path to the server instance directory.
+ * @param {string} pack the file name of the shaderpack.
+ */
+exports.setEnabledShaderpack = function(instanceDir, pack){
+    exports.validateDir(instanceDir)
+
+    const optionsShaders = path.join(instanceDir, SHADER_CONFIG)
+    let buf
+    if(fs.existsSync(optionsShaders)){
+        buf = fs.readFileSync(optionsShaders, {encoding: 'utf-8'})
+        buf = buf.replace(SHADER_OPTION, `shaderPack=${pack}`)
+    } else {
+        buf = `shaderPack=${pack}`
+    }
+    fs.writeFileSync(optionsShaders, buf, {encoding: 'utf-8'})
+}
+
+/**
+ * Add shaderpacks.
+ * 
+ * @param {FileList} files The files to add.
+ * @param {string} instanceDir The path to the server instance directory.
+ */
+exports.addShaderpacks = function(files, instanceDir) {
+
+    const p = path.join(instanceDir, SHADER_DIR)
+
+    exports.validateDir(p)
+
+    for(let f of files) {
+        if(SHADER_REGEX.exec(f.name) != null) {
+            fs.moveSync(f.path, path.join(p, f.name))
+        }
+    }
+
+}

app/assets/js/ipcconstants.js

@@ -0,0 +1,28 @@
+// NOTE FOR THIRD-PARTY
+// REPLACE THIS CLIENT ID WITH YOUR APPLICATION ID.
+// SEE https://github.com/dscalzi/HeliosLauncher/blob/master/docs/MicrosoftAuth.md
+exports.AZURE_CLIENT_ID = '8f387cc5-3138-4699-89a9-f97948e3927e'
+// SEE NOTE ABOVE.
+
+
+// Opcodes
+exports.MSFT_OPCODE = {
+    OPEN_LOGIN: 'MSFT_AUTH_OPEN_LOGIN',
+    OPEN_LOGOUT: 'MSFT_AUTH_OPEN_LOGOUT',
+    REPLY_LOGIN: 'MSFT_AUTH_REPLY_LOGIN',
+    REPLY_LOGOUT: 'MSFT_AUTH_REPLY_LOGOUT'
+}
+// Reply types for REPLY opcode.
+exports.MSFT_REPLY_TYPE = {
+    SUCCESS: 'MSFT_AUTH_REPLY_SUCCESS',
+    ERROR: 'MSFT_AUTH_REPLY_ERROR'
+}
+// Error types for ERROR reply.
+exports.MSFT_ERROR = {
+    ALREADY_OPEN: 'MSFT_AUTH_ERR_ALREADY_OPEN',
+    NOT_FINISHED: 'MSFT_AUTH_ERR_NOT_FINISHED'
+}
+
+exports.SHELL_OPCODE = {
+    TRASH_ITEM: 'TRASH_ITEM'
+}

app/assets/js/isdev.js

@@ -0,0 +1,5 @@
+'use strict'
+const getFromEnv = parseInt(process.env.ELECTRON_IS_DEV, 10) === 1
+const isEnvSet = 'ELECTRON_IS_DEV' in process.env
+
+module.exports = isEnvSet ? getFromEnv : (process.defaultApp || /node_modules[\\/]electron[\\/]/.test(process.execPath))

app/assets/js/langloader.js

@@ -0,0 +1,43 @@
+const fs = require('fs-extra')
+const path = require('path')
+const toml = require('toml')
+const merge = require('lodash.merge')
+
+let lang
+
+exports.loadLanguage = function(id){
+    lang = merge(lang || {}, toml.parse(fs.readFileSync(path.join(__dirname, '..', 'lang', `${id}.toml`))) || {})
+}
+
+exports.query = function(id, placeHolders){
+    let query = id.split('.')
+    let res = lang
+    for(let q of query){
+        res = res[q]
+    }
+    let text = res === lang ? '' : res
+    if (placeHolders) {
+        Object.entries(placeHolders).forEach(([key, value]) => {
+            text = text.replace(`{${key}}`, value)
+        })
+    }
+    return text
+}
+
+exports.queryJS = function(id, placeHolders){
+    return exports.query(`js.${id}`, placeHolders)
+}
+
+exports.queryEJS = function(id, placeHolders){
+    return exports.query(`ejs.${id}`, placeHolders)
+}
+
+exports.setupLanguage = function(){
+    // Load Language Files
+    exports.loadLanguage('en_US')
+    // Uncomment this when translations are ready
+    exports.loadLanguage('ko_KR')
+
+    // Load Custom Language File for Launcher Customizer
+    exports.loadLanguage('_custom')
+}

app/assets/js/preloader.js

@@ -0,0 +1,69 @@
+const {ipcRenderer}  = require('electron')
+const fs             = require('fs-extra')
+const os             = require('os')
+const path           = require('path')
+
+const ConfigManager  = require('./configmanager')
+const CatalogManager = require('./catalogmanager')
+const { DistroAPI }  = require('./distromanager')
+const LangLoader     = require('./langloader')
+const { LoggerUtil } = require('helios-core')
+// eslint-disable-next-line no-unused-vars
+const { HeliosDistribution } = require('helios-core/common')
+
+const logger = LoggerUtil.getLogger('Preloader')
+
+logger.info('Loading..')
+
+// Load ConfigManager
+ConfigManager.load()
+CatalogManager.applyConfiguredProfile()
+
+// Yuck!
+// TODO Fix this
+DistroAPI['commonDir'] = ConfigManager.getCommonDirectory()
+DistroAPI['instanceDir'] = ConfigManager.getInstanceDirectory()
+
+// Load Strings
+LangLoader.setupLanguage()
+
+/**
+ * 
+ * @param {HeliosDistribution} data 
+ */
+function onDistroLoad(data){
+    if(data != null){
+        
+        // Resolve the selected server if its value has yet to be set.
+        if(ConfigManager.getSelectedServer() == null || data.getServerById(ConfigManager.getSelectedServer()) == null){
+            logger.info('Determining default selected server..')
+            ConfigManager.setSelectedServer(data.getMainServer().rawServer.id)
+            ConfigManager.save()
+        }
+    }
+    ipcRenderer.send('distributionIndexDone', data != null)
+}
+
+// Ensure Distribution is downloaded and cached.
+DistroAPI.getDistribution()
+    .then(heliosDistro => {
+        logger.info('Loaded distribution index.')
+
+        onDistroLoad(heliosDistro)
+    })
+    .catch(err => {
+        logger.info('Failed to load an older version of the distribution index.')
+        logger.info('Application cannot run.')
+        logger.error(err)
+
+        onDistroLoad(null)
+    })
+
+// Clean up temp dir incase previous launches ended unexpectedly. 
+fs.remove(path.join(os.tmpdir(), ConfigManager.getTempNativeFolder()), (err) => {
+    if(err){
+        logger.warn('Error while cleaning natives directory', err)
+    } else {
+        logger.info('Cleaned natives directory.')
+    }
+})

app/assets/js/processbuilder.js

@@ -0,0 +1,952 @@
+const AdmZip                = require('adm-zip')
+const child_process         = require('child_process')
+const crypto                = require('crypto')
+const fs                    = require('fs-extra')
+const { LoggerUtil }        = require('helios-core')
+const { getMojangOS, isLibraryCompatible, mcVersionAtLeast }  = require('helios-core/common')
+const { Type }              = require('helios-distribution-types')
+const os                    = require('os')
+const path                  = require('path')
+
+const ConfigManager            = require('./configmanager')
+
+const logger = LoggerUtil.getLogger('ProcessBuilder')
+
+function resolveServerAddressOverride(address, fallbackPort) {
+    if(address == null || address.trim().length === 0){
+        return null
+    }
+
+    const trimmed = address.trim()
+
+    if(trimmed.startsWith('[')){
+        const closingIndex = trimmed.indexOf(']')
+        if(closingIndex !== -1){
+            const host = trimmed.substring(1, closingIndex)
+            const remainder = trimmed.substring(closingIndex + 1)
+            if(remainder.startsWith(':')){
+                return {
+                    hostname: host,
+                    port: remainder.substring(1) || fallbackPort
+                }
+            }
+            return {
+                hostname: host,
+                port: fallbackPort
+            }
+        }
+    }
+
+    const splitIndex = trimmed.lastIndexOf(':')
+    if(splitIndex > -1 && trimmed.indexOf(':') === splitIndex){
+        return {
+            hostname: trimmed.substring(0, splitIndex),
+            port: trimmed.substring(splitIndex + 1) || fallbackPort
+        }
+    }
+
+    return {
+        hostname: trimmed,
+        port: fallbackPort
+    }
+}
+
+
+/**
+ * Only forge and fabric are top level mod loaders.
+ * 
+ * Forge 1.13+ launch logic is similar to fabrics, for now using usingFabricLoader flag to
+ * change minor details when needed.
+ * 
+ * Rewrite of this module may be needed in the future.
+ */
+class ProcessBuilder {
+
+    constructor(distroServer, vanillaManifest, modManifest, authUser, launcherVersion){
+        this.gameDir = path.join(ConfigManager.getInstanceDirectory(), distroServer.rawServer.id)
+        this.commonDir = ConfigManager.getCommonDirectory()
+        this.server = distroServer
+        this.vanillaManifest = vanillaManifest
+        this.modManifest = modManifest
+        this.authUser = authUser
+        this.launcherVersion = launcherVersion
+        this.forgeModListFile = path.join(this.gameDir, 'forgeMods.list') // 1.13+
+        this.fmlDir = path.join(this.gameDir, 'forgeModList.json')
+        this.llDir = path.join(this.gameDir, 'liteloaderModList.json')
+        this.libPath = path.join(this.commonDir, 'libraries')
+
+        this.usingLiteLoader = false
+        this.usingFabricLoader = false
+        this.llPath = null
+    }
+    
+    /**
+     * Convienence method to run the functions typically used to build a process.
+     */
+    build(){
+        fs.ensureDirSync(this.gameDir)
+        const tempNativePath = path.join(os.tmpdir(), ConfigManager.getTempNativeFolder(), crypto.pseudoRandomBytes(16).toString('hex'))
+        process.throwDeprecation = true
+        this.setupLiteLoader()
+        logger.info('Using liteloader:', this.usingLiteLoader)
+        this.usingFabricLoader = this.server.modules.some(mdl => mdl.rawModule.type === Type.Fabric)
+        logger.info('Using fabric loader:', this.usingFabricLoader)
+        const modObj = this.resolveModConfiguration(ConfigManager.getModConfiguration(this.server.rawServer.id).mods, this.server.modules)
+        
+        // Mod list below 1.13
+        // Fabric only supports 1.14+
+        if(!mcVersionAtLeast('1.13', this.server.rawServer.minecraftVersion)){
+            this.constructJSONModList('forge', modObj.fMods, true)
+            if(this.usingLiteLoader){
+                this.constructJSONModList('liteloader', modObj.lMods, true)
+            }
+        }
+        
+        const uberModArr = modObj.fMods.concat(modObj.lMods)
+        let args = this.constructJVMArguments(uberModArr, tempNativePath)
+
+        if(mcVersionAtLeast('1.13', this.server.rawServer.minecraftVersion)){
+            //args = args.concat(this.constructModArguments(modObj.fMods))
+            args = args.concat(this.constructModList(modObj.fMods))
+        }
+
+        // Hide access token
+        const loggableArgs = [...args]
+        loggableArgs[loggableArgs.findIndex(x => x === this.authUser.accessToken)] = '**********'
+
+        logger.info('Launch Arguments:', loggableArgs)
+
+        const child = child_process.spawn(ConfigManager.getJavaExecutable(this.server.rawServer.id), args, {
+            cwd: this.gameDir,
+            detached: ConfigManager.getLaunchDetached()
+        })
+
+        if(ConfigManager.getLaunchDetached()){
+            child.unref()
+        }
+
+        child.stdout.setEncoding('utf8')
+        child.stderr.setEncoding('utf8')
+
+        child.stdout.on('data', (data) => {
+            data.trim().split('\n').forEach(x => console.log(`\x1b[32m[Minecraft]\x1b[0m ${x}`))
+            
+        })
+        child.stderr.on('data', (data) => {
+            data.trim().split('\n').forEach(x => console.log(`\x1b[31m[Minecraft]\x1b[0m ${x}`))
+        })
+        child.on('close', (code) => {
+            logger.info('Exited with code', code)
+            fs.remove(tempNativePath, (err) => {
+                if(err){
+                    logger.warn('Error while deleting temp dir', err)
+                } else {
+                    logger.info('Temp dir deleted successfully.')
+                }
+            })
+        })
+
+        return child
+    }
+
+    /**
+     * Get the platform specific classpath separator. On windows, this is a semicolon.
+     * On Unix, this is a colon.
+     * 
+     * @returns {string} The classpath separator for the current operating system.
+     */
+    static getClasspathSeparator() {
+        return process.platform === 'win32' ? ';' : ':'
+    }
+
+    /**
+     * Determine if an optional mod is enabled from its configuration value. If the
+     * configuration value is null, the required object will be used to
+     * determine if it is enabled.
+     * 
+     * A mod is enabled if:
+     *   * The configuration is not null and one of the following:
+     *     * The configuration is a boolean and true.
+     *     * The configuration is an object and its 'value' property is true.
+     *   * The configuration is null and one of the following:
+     *     * The required object is null.
+     *     * The required object's 'def' property is null or true.
+     * 
+     * @param {Object | boolean} modCfg The mod configuration object.
+     * @param {Object} required Optional. The required object from the mod's distro declaration.
+     * @returns {boolean} True if the mod is enabled, false otherwise.
+     */
+    static isModEnabled(modCfg, required = null){
+        return modCfg != null ? ((typeof modCfg === 'boolean' && modCfg) || (typeof modCfg === 'object' && (typeof modCfg.value !== 'undefined' ? modCfg.value : true))) : required != null ? required.def : true
+    }
+
+    /**
+     * Function which performs a preliminary scan of the top level
+     * mods. If liteloader is present here, we setup the special liteloader
+     * launch options. Note that liteloader is only allowed as a top level
+     * mod. It must not be declared as a submodule.
+     */
+    setupLiteLoader(){
+        for(let ll of this.server.modules){
+            if(ll.rawModule.type === Type.LiteLoader){
+                if(!ll.getRequired().value){
+                    const modCfg = ConfigManager.getModConfiguration(this.server.rawServer.id).mods
+                    if(ProcessBuilder.isModEnabled(modCfg[ll.getVersionlessMavenIdentifier()], ll.getRequired())){
+                        if(fs.existsSync(ll.getPath())){
+                            this.usingLiteLoader = true
+                            this.llPath = ll.getPath()
+                        }
+                    }
+                } else {
+                    if(fs.existsSync(ll.getPath())){
+                        this.usingLiteLoader = true
+                        this.llPath = ll.getPath()
+                    }
+                }
+            }
+        }
+    }
+
+    /**
+     * Resolve an array of all enabled mods. These mods will be constructed into
+     * a mod list format and enabled at launch.
+     * 
+     * @param {Object} modCfg The mod configuration object.
+     * @param {Array.<Object>} mdls An array of modules to parse.
+     * @returns {{fMods: Array.<Object>, lMods: Array.<Object>}} An object which contains
+     * a list of enabled forge mods and litemods.
+     */
+    resolveModConfiguration(modCfg, mdls){
+        let fMods = []
+        let lMods = []
+
+        for(let mdl of mdls){
+            const type = mdl.rawModule.type
+            if(type === Type.ForgeMod || type === Type.LiteMod || type === Type.LiteLoader || type === Type.FabricMod){
+                const o = !mdl.getRequired().value
+                const e = ProcessBuilder.isModEnabled(modCfg[mdl.getVersionlessMavenIdentifier()], mdl.getRequired())
+                if(!o || (o && e)){
+                    if(mdl.subModules.length > 0){
+                        const v = this.resolveModConfiguration(modCfg[mdl.getVersionlessMavenIdentifier()].mods, mdl.subModules)
+                        fMods = fMods.concat(v.fMods)
+                        lMods = lMods.concat(v.lMods)
+                        if(type === Type.LiteLoader){
+                            continue
+                        }
+                    }
+                    if(type === Type.ForgeMod || type === Type.FabricMod){
+                        fMods.push(mdl)
+                    } else {
+                        lMods.push(mdl)
+                    }
+                }
+            }
+        }
+
+        return {
+            fMods,
+            lMods
+        }
+    }
+
+    _lteMinorVersion(version) {
+        return Number(this.modManifest.id.split('-')[0].split('.')[1]) <= Number(version)
+    }
+
+    /**
+     * Test to see if this version of forge requires the absolute: prefix
+     * on the modListFile repository field.
+     */
+    _requiresAbsolute(){
+        try {
+            if(this._lteMinorVersion(9)) {
+                return false
+            }
+            const ver = this.modManifest.id.split('-')[2]
+            const pts = ver.split('.')
+            const min = [14, 23, 3, 2655]
+            for(let i=0; i<pts.length; i++){
+                const parsed = Number.parseInt(pts[i])
+                if(parsed < min[i]){
+                    return false
+                } else if(parsed > min[i]){
+                    return true
+                }
+            }
+        } catch (_err) {
+            // We know old forge versions follow this format.
+            // Error must be caused by newer version.
+        }
+        
+        // Equal or errored
+        return true
+    }
+
+    /**
+     * Construct a mod list json object.
+     * 
+     * @param {'forge' | 'liteloader'} type The mod list type to construct.
+     * @param {Array.<Object>} mods An array of mods to add to the mod list.
+     * @param {boolean} save Optional. Whether or not we should save the mod list file.
+     */
+    constructJSONModList(type, mods, save = false){
+        const modList = {
+            repositoryRoot: ((type === 'forge' && this._requiresAbsolute()) ? 'absolute:' : '') + path.join(this.commonDir, 'modstore')
+        }
+
+        const ids = []
+        if(type === 'forge'){
+            for(let mod of mods){
+                ids.push(mod.getExtensionlessMavenIdentifier())
+            }
+        } else {
+            for(let mod of mods){
+                ids.push(mod.getMavenIdentifier())
+            }
+        }
+        modList.modRef = ids
+        
+        if(save){
+            const json = JSON.stringify(modList, null, 4)
+            fs.writeFileSync(type === 'forge' ? this.fmlDir : this.llDir, json, 'UTF-8')
+        }
+
+        return modList
+    }
+
+    // /**
+    //  * Construct the mod argument list for forge 1.13
+    //  * 
+    //  * @param {Array.<Object>} mods An array of mods to add to the mod list.
+    //  */
+    // constructModArguments(mods){
+    //     const argStr = mods.map(mod => {
+    //         return mod.getExtensionlessMavenIdentifier()
+    //     }).join(',')
+
+    //     if(argStr){
+    //         return [
+    //             '--fml.mavenRoots',
+    //             path.join('..', '..', 'common', 'modstore'),
+    //             '--fml.mods',
+    //             argStr
+    //         ]
+    //     } else {
+    //         return []
+    //     }
+        
+    // }
+
+    /**
+     * Construct the mod argument list for forge 1.13 and Fabric
+     * 
+     * @param {Array.<Object>} mods An array of mods to add to the mod list.
+     */
+    constructModList(mods) {
+        const writeBuffer = mods.map(mod => {
+            return this.usingFabricLoader ? mod.getPath() : mod.getExtensionlessMavenIdentifier()
+        }).join('\n')
+
+        if(writeBuffer) {
+            fs.writeFileSync(this.forgeModListFile, writeBuffer, 'UTF-8')
+            return this.usingFabricLoader ? [
+                '--fabric.addMods',
+                `@${this.forgeModListFile}`
+            ] : [
+                '--fml.mavenRoots',
+                path.join('..', '..', 'common', 'modstore'),
+                '--fml.modLists',
+                this.forgeModListFile
+            ]
+        } else {
+            return []
+        }
+
+    }
+
+    _processAutoConnectArg(args){
+        const selectedProfileId = ConfigManager.getSelectedLibraryProfile()
+        const quickPlayWorld = selectedProfileId != null
+            ? ConfigManager.getLibraryQuickPlayWorld(selectedProfileId)
+            : null
+
+        if(quickPlayWorld){
+            if(mcVersionAtLeast('1.20', this.server.rawServer.minecraftVersion)){
+                args.push('--quickPlaySingleplayer')
+                args.push(quickPlayWorld)
+            }
+            return
+        }
+
+        if(ConfigManager.getAutoConnect() && this.server.rawServer.autoconnect){
+            const serverAddressOverride = selectedProfileId != null
+                ? resolveServerAddressOverride(
+                    ConfigManager.getLibraryServerAddressOverride(selectedProfileId),
+                    this.server.port
+                )
+                : null
+            const hostname = serverAddressOverride?.hostname ?? this.server.hostname
+            const port = serverAddressOverride?.port ?? this.server.port
+            if(mcVersionAtLeast('1.20', this.server.rawServer.minecraftVersion)){
+                args.push('--quickPlayMultiplayer')
+                args.push(`${hostname}:${port}`)
+            } else {
+                args.push('--server')
+                args.push(hostname)
+                args.push('--port')
+                args.push(port)
+            }
+        }
+    }
+
+    /**
+     * Construct the argument array that will be passed to the JVM process.
+     * 
+     * @param {Array.<Object>} mods An array of enabled mods which will be launched with this process.
+     * @param {string} tempNativePath The path to store the native libraries.
+     * @returns {Array.<string>} An array containing the full JVM arguments for this process.
+     */
+    constructJVMArguments(mods, tempNativePath){
+        if(mcVersionAtLeast('1.13', this.server.rawServer.minecraftVersion)){
+            return this._constructJVMArguments113(mods, tempNativePath)
+        } else {
+            return this._constructJVMArguments112(mods, tempNativePath)
+        }
+    }
+
+    /**
+     * Construct the argument array that will be passed to the JVM process.
+     * This function is for 1.12 and below.
+     * 
+     * @param {Array.<Object>} mods An array of enabled mods which will be launched with this process.
+     * @param {string} tempNativePath The path to store the native libraries.
+     * @returns {Array.<string>} An array containing the full JVM arguments for this process.
+     */
+    _constructJVMArguments112(mods, tempNativePath){
+
+        let args = []
+
+        // Classpath Argument
+        args.push('-cp')
+        args.push(this.classpathArg(mods, tempNativePath).join(ProcessBuilder.getClasspathSeparator()))
+
+        // Java Arguments
+        if(process.platform === 'darwin'){
+            args.push('-Xdock:name=MRSLauncher')
+            args.push('-Xdock:icon=' + path.join(__dirname, '..', 'images', 'minecraft.icns'))
+        }
+        args.push('-Xmx' + ConfigManager.getMaxRAM(this.server.rawServer.id))
+        args.push('-Xms' + ConfigManager.getMinRAM(this.server.rawServer.id))
+        args = args.concat(ConfigManager.getJVMOptions(this.server.rawServer.id))
+        args.push('-Djava.library.path=' + tempNativePath)
+
+        // Main Java Class
+        args.push(this.modManifest.mainClass)
+
+        // Forge Arguments
+        args = args.concat(this._resolveForgeArgs())
+
+        return args
+    }
+
+    /**
+     * Construct the argument array that will be passed to the JVM process.
+     * This function is for 1.13+
+     * 
+     * Note: Required Libs https://github.com/MinecraftForge/MinecraftForge/blob/af98088d04186452cb364280340124dfd4766a5c/src/fmllauncher/java/net/minecraftforge/fml/loading/LibraryFinder.java#L82
+     * 
+     * @param {Array.<Object>} mods An array of enabled mods which will be launched with this process.
+     * @param {string} tempNativePath The path to store the native libraries.
+     * @returns {Array.<string>} An array containing the full JVM arguments for this process.
+     */
+    _constructJVMArguments113(mods, tempNativePath){
+
+        const argDiscovery = /\${*(.*)}/
+
+        // JVM Arguments First
+        let args = this.vanillaManifest.arguments.jvm
+
+        // Debug securejarhandler
+        // args.push('-Dbsl.debug=true')
+
+        if(this.modManifest.arguments.jvm != null) {
+            for(const argStr of this.modManifest.arguments.jvm) {
+                args.push(argStr
+                    .replaceAll('${library_directory}', this.libPath)
+                    .replaceAll('${classpath_separator}', ProcessBuilder.getClasspathSeparator())
+                    .replaceAll('${version_name}', this.modManifest.id)
+                )
+            }
+        }
+
+        //args.push('-Dlog4j.configurationFile=D:\\WesterosCraft\\game\\common\\assets\\log_configs\\client-1.12.xml')
+
+        // Java Arguments
+        if(process.platform === 'darwin'){
+            args.push('-Xdock:name=MRSLauncher')
+            args.push('-Xdock:icon=' + path.join(__dirname, '..', 'images', 'minecraft.icns'))
+        }
+        args.push('-Xmx' + ConfigManager.getMaxRAM(this.server.rawServer.id))
+        args.push('-Xms' + ConfigManager.getMinRAM(this.server.rawServer.id))
+        args = args.concat(ConfigManager.getJVMOptions(this.server.rawServer.id))
+
+        // Main Java Class
+        args.push(this.modManifest.mainClass)
+
+        // Vanilla Arguments
+        args = args.concat(this.vanillaManifest.arguments.game)
+
+        for(let i=0; i<args.length; i++){
+            if(typeof args[i] === 'object' && args[i].rules != null){
+                
+                let checksum = 0
+                for(let rule of args[i].rules){
+                    if(rule.os != null){
+                        if(rule.os.name === getMojangOS()
+                            && (rule.os.version == null || new RegExp(rule.os.version).test(os.release))){
+                            if(rule.action === 'allow'){
+                                checksum++
+                            }
+                        } else {
+                            if(rule.action === 'disallow'){
+                                checksum++
+                            }
+                        }
+                    } else if(rule.features != null){
+                        // We don't have many 'features' in the index at the moment.
+                        // This should be fine for a while.
+                        if(rule.features.has_custom_resolution != null && rule.features.has_custom_resolution === true){
+                            if(ConfigManager.getFullscreen()){
+                                args[i].value = [
+                                    '--fullscreen',
+                                    'true'
+                                ]
+                            }
+                            checksum++
+                        }
+                    }
+                }
+
+                // TODO splice not push
+                if(checksum === args[i].rules.length){
+                    if(typeof args[i].value === 'string'){
+                        args[i] = args[i].value
+                    } else if(typeof args[i].value === 'object'){
+                        //args = args.concat(args[i].value)
+                        args.splice(i, 1, ...args[i].value)
+                    }
+
+                    // Decrement i to reprocess the resolved value
+                    i--
+                } else {
+                    args[i] = null
+                }
+
+            } else if(typeof args[i] === 'string'){
+                if(argDiscovery.test(args[i])){
+                    const identifier = args[i].match(argDiscovery)[1]
+                    let val = null
+                    switch(identifier){
+                        case 'auth_player_name':
+                            val = this.authUser.displayName.trim()
+                            break
+                        case 'version_name':
+                            //val = vanillaManifest.id
+                            val = this.server.rawServer.id
+                            break
+                        case 'game_directory':
+                            val = this.gameDir
+                            break
+                        case 'assets_root':
+                            val = path.join(this.commonDir, 'assets')
+                            break
+                        case 'assets_index_name':
+                            val = this.vanillaManifest.assets
+                            break
+                        case 'auth_uuid':
+                            val = this.authUser.uuid.trim()
+                            break
+                        case 'auth_access_token':
+                            val = this.authUser.accessToken
+                            break
+                        case 'user_type':
+                            val = this.authUser.type === 'microsoft' ? 'msa' : 'mojang'
+                            break
+                        case 'version_type':
+                            val = this.vanillaManifest.type
+                            break
+                        case 'resolution_width':
+                            val = ConfigManager.getGameWidth()
+                            break
+                        case 'resolution_height':
+                            val = ConfigManager.getGameHeight()
+                            break
+                        case 'natives_directory':
+                            val = args[i].replace(argDiscovery, tempNativePath)
+                            break
+                        case 'launcher_name':
+                            val = args[i].replace(argDiscovery, 'MRS-Launcher')
+                            break
+                        case 'launcher_version':
+                            val = args[i].replace(argDiscovery, this.launcherVersion)
+                            break
+                        case 'classpath':
+                            val = this.classpathArg(mods, tempNativePath).join(ProcessBuilder.getClasspathSeparator())
+                            break
+                    }
+                    if(val != null){
+                        args[i] = val
+                    }
+                }
+            }
+        }
+
+        // Autoconnect
+        this._processAutoConnectArg(args)
+        
+
+        // Forge Specific Arguments
+        args = args.concat(this.modManifest.arguments.game)
+
+        // Filter null values
+        args = args.filter(arg => {
+            return arg != null
+        })
+
+        return args
+    }
+
+    /**
+     * Resolve the arguments required by forge.
+     * 
+     * @returns {Array.<string>} An array containing the arguments required by forge.
+     */
+    _resolveForgeArgs(){
+        const mcArgs = this.modManifest.minecraftArguments.split(' ')
+        const argDiscovery = /\${*(.*)}/
+
+        // Replace the declared variables with their proper values.
+        for(let i=0; i<mcArgs.length; ++i){
+            if(argDiscovery.test(mcArgs[i])){
+                const identifier = mcArgs[i].match(argDiscovery)[1]
+                let val = null
+                switch(identifier){
+                    case 'auth_player_name':
+                        val = this.authUser.displayName.trim()
+                        break
+                    case 'version_name':
+                        //val = vanillaManifest.id
+                        val = this.server.rawServer.id
+                        break
+                    case 'game_directory':
+                        val = this.gameDir
+                        break
+                    case 'assets_root':
+                        val = path.join(this.commonDir, 'assets')
+                        break
+                    case 'assets_index_name':
+                        val = this.vanillaManifest.assets
+                        break
+                    case 'auth_uuid':
+                        val = this.authUser.uuid.trim()
+                        break
+                    case 'auth_access_token':
+                        val = this.authUser.accessToken
+                        break
+                    case 'user_type':
+                        val = this.authUser.type === 'microsoft' ? 'msa' : 'mojang'
+                        break
+                    case 'user_properties': // 1.8.9 and below.
+                        val = '{}'
+                        break
+                    case 'version_type':
+                        val = this.vanillaManifest.type
+                        break
+                }
+                if(val != null){
+                    mcArgs[i] = val
+                }
+            }
+        }
+
+        // Autoconnect to the selected server.
+        this._processAutoConnectArg(mcArgs)
+
+        // Prepare game resolution
+        if(ConfigManager.getFullscreen()){
+            mcArgs.push('--fullscreen')
+            mcArgs.push(true)
+        } else {
+            mcArgs.push('--width')
+            mcArgs.push(ConfigManager.getGameWidth())
+            mcArgs.push('--height')
+            mcArgs.push(ConfigManager.getGameHeight())
+        }
+        
+        // Mod List File Argument
+        mcArgs.push('--modListFile')
+        if(this._lteMinorVersion(9)) {
+            mcArgs.push(path.basename(this.fmlDir))
+        } else {
+            mcArgs.push('absolute:' + this.fmlDir)
+        }
+        
+
+        // LiteLoader
+        if(this.usingLiteLoader){
+            mcArgs.push('--modRepo')
+            mcArgs.push(this.llDir)
+
+            // Set first arg to liteloader tweak class
+            mcArgs.unshift('com.mumfrey.liteloader.launch.LiteLoaderTweaker')
+            mcArgs.unshift('--tweakClass')
+        }
+
+        return mcArgs
+    }
+
+    /**
+     * Ensure that the classpath entries all point to jar files.
+     * 
+     * @param {Array.<String>} list Array of classpath entries.
+     */
+    _processClassPathList(list) {
+
+        const ext = '.jar'
+        const extLen = ext.length
+        for(let i=0; i<list.length; i++) {
+            const extIndex = list[i].indexOf(ext)
+            if(extIndex > -1 && extIndex  !== list[i].length - extLen) {
+                list[i] = list[i].substring(0, extIndex + extLen)
+            }
+        }
+
+    }
+
+    /**
+     * Resolve the full classpath argument list for this process. This method will resolve all Mojang-declared
+     * libraries as well as the libraries declared by the server. Since mods are permitted to declare libraries,
+     * this method requires all enabled mods as an input
+     * 
+     * @param {Array.<Object>} mods An array of enabled mods which will be launched with this process.
+     * @param {string} tempNativePath The path to store the native libraries.
+     * @returns {Array.<string>} An array containing the paths of each library required by this process.
+     */
+    classpathArg(mods, tempNativePath){
+        let cpArgs = []
+
+        if(!mcVersionAtLeast('1.17', this.server.rawServer.minecraftVersion) || this.usingFabricLoader) {
+            // Add the version.jar to the classpath.
+            // Must not be added to the classpath for Forge 1.17+.
+            const version = this.vanillaManifest.id
+            cpArgs.push(path.join(this.commonDir, 'versions', version, version + '.jar'))
+        }
+        
+
+        if(this.usingLiteLoader){
+            cpArgs.push(this.llPath)
+        }
+
+        // Resolve the Mojang declared libraries.
+        const mojangLibs = this._resolveMojangLibraries(tempNativePath)
+
+        // Resolve the server declared libraries.
+        const servLibs = this._resolveServerLibraries(mods)
+
+        // Merge libraries, server libs with the same
+        // maven identifier will override the mojang ones.
+        // Ex. 1.7.10 forge overrides mojang's guava with newer version.
+        const finalLibs = {...mojangLibs, ...servLibs}
+        cpArgs = cpArgs.concat(Object.values(finalLibs))
+
+        this._processClassPathList(cpArgs)
+
+        return cpArgs
+    }
+
+    /**
+     * Resolve the libraries defined by Mojang's version data. This method will also extract
+     * native libraries and point to the correct location for its classpath.
+     * 
+     * TODO - clean up function
+     * 
+     * @param {string} tempNativePath The path to store the native libraries.
+     * @returns {{[id: string]: string}} An object containing the paths of each library mojang declares.
+     */
+    _resolveMojangLibraries(tempNativePath){
+        const nativesRegex = /.+:natives-([^-]+)(?:-(.+))?/
+        const libs = {}
+
+        const libArr = this.vanillaManifest.libraries
+        fs.ensureDirSync(tempNativePath)
+        for(let i=0; i<libArr.length; i++){
+            const lib = libArr[i]
+            if(isLibraryCompatible(lib.rules, lib.natives)){
+
+                // Pre-1.19 has a natives object.
+                if(lib.natives != null) {
+                    // Extract the native library.
+                    const exclusionArr = lib.extract != null ? lib.extract.exclude : ['META-INF/']
+                    const artifact = lib.downloads.classifiers[lib.natives[getMojangOS()].replace('${arch}', process.arch.replace('x', ''))]
+
+                    // Location of native zip.
+                    const to = path.join(this.libPath, artifact.path)
+
+                    let zip = new AdmZip(to)
+                    let zipEntries = zip.getEntries()
+
+                    // Unzip the native zip.
+                    for(let i=0; i<zipEntries.length; i++){
+                        const fileName = zipEntries[i].entryName
+
+                        let shouldExclude = false
+
+                        // Exclude noted files.
+                        exclusionArr.forEach(function(exclusion){
+                            if(fileName.indexOf(exclusion) > -1){
+                                shouldExclude = true
+                            }
+                        })
+
+                        // Extract the file.
+                        if(!shouldExclude){
+                            fs.writeFile(path.join(tempNativePath, fileName), zipEntries[i].getData(), (err) => {
+                                if(err){
+                                    logger.error('Error while extracting native library:', err)
+                                }
+                            })
+                        }
+
+                    }
+                }
+                // 1.19+ logic
+                else if(lib.name.includes('natives-')) {
+
+                    const regexTest = nativesRegex.exec(lib.name)
+                    // const os = regexTest[1]
+                    const arch = regexTest[2] ?? 'x64'
+
+                    if(arch != process.arch) {
+                        continue
+                    }
+
+                    // Extract the native library.
+                    const exclusionArr = lib.extract != null ? lib.extract.exclude : ['META-INF/', '.git', '.sha1']
+                    const artifact = lib.downloads.artifact
+
+                    // Location of native zip.
+                    const to = path.join(this.libPath, artifact.path)
+
+                    let zip = new AdmZip(to)
+                    let zipEntries = zip.getEntries()
+
+                    // Unzip the native zip.
+                    for(let i=0; i<zipEntries.length; i++){
+                        if(zipEntries[i].isDirectory) {
+                            continue
+                        }
+
+                        const fileName = zipEntries[i].entryName
+
+                        let shouldExclude = false
+
+                        // Exclude noted files.
+                        exclusionArr.forEach(function(exclusion){
+                            if(fileName.indexOf(exclusion) > -1){
+                                shouldExclude = true
+                            }
+                        })
+
+                        const extractName = fileName.includes('/') ? fileName.substring(fileName.lastIndexOf('/')) : fileName
+
+                        // Extract the file.
+                        if(!shouldExclude){
+                            fs.writeFile(path.join(tempNativePath, extractName), zipEntries[i].getData(), (err) => {
+                                if(err){
+                                    logger.error('Error while extracting native library:', err)
+                                }
+                            })
+                        }
+
+                    }
+                }
+                // No natives
+                else {
+                    const dlInfo = lib.downloads
+                    const artifact = dlInfo.artifact
+                    const to = path.join(this.libPath, artifact.path)
+                    const versionIndependentId = lib.name.substring(0, lib.name.lastIndexOf(':'))
+                    libs[versionIndependentId] = to
+                }
+            }
+        }
+
+        return libs
+    }
+
+    /**
+     * Resolve the libraries declared by this server in order to add them to the classpath.
+     * This method will also check each enabled mod for libraries, as mods are permitted to
+     * declare libraries.
+     * 
+     * @param {Array.<Object>} mods An array of enabled mods which will be launched with this process.
+     * @returns {{[id: string]: string}} An object containing the paths of each library this server requires.
+     */
+    _resolveServerLibraries(mods){
+        const mdls = this.server.modules
+        let libs = {}
+
+        // Locate Forge/Fabric/Libraries
+        for(let mdl of mdls){
+            const type = mdl.rawModule.type
+            if(type === Type.ForgeHosted || type === Type.Fabric || type === Type.Library){
+                libs[mdl.getVersionlessMavenIdentifier()] = mdl.getPath()
+                if(mdl.subModules.length > 0){
+                    const res = this._resolveModuleLibraries(mdl)
+                    libs = {...libs, ...res}
+                }
+            }
+        }
+
+        //Check for any libraries in our mod list.
+        for(let i=0; i<mods.length; i++){
+            if(mods.sub_modules != null){
+                const res = this._resolveModuleLibraries(mods[i])
+                libs = {...libs, ...res}
+            }
+        }
+
+        return libs
+    }
+
+    /**
+     * Recursively resolve the path of each library required by this module.
+     * 
+     * @param {Object} mdl A module object from the server distro index.
+     * @returns {{[id: string]: string}} An object containing the paths of each library this module requires.
+     */
+    _resolveModuleLibraries(mdl){
+        if(!mdl.subModules.length > 0){
+            return {}
+        }
+        let libs = {}
+        for(let sm of mdl.subModules){
+            if(sm.rawModule.type === Type.Library){
+
+                if(sm.rawModule.classpath ?? true) {
+                    libs[sm.getVersionlessMavenIdentifier()] = sm.getPath()
+                }
+            }
+            // If this module has submodules, we need to resolve the libraries for those.
+            // To avoid unnecessary recursive calls, base case is checked here.
+            if(mdl.subModules.length > 0){
+                const res = this._resolveModuleLibraries(sm)
+                libs = {...libs, ...res}
+            }
+        }
+        return libs
+    }
+
+}
+
+module.exports = ProcessBuilder

app/assets/js/profileassetmanager.js

@@ -0,0 +1,168 @@
+const AdmZip = require('adm-zip')
+const fs = require('fs-extra')
+const got = require('got')
+const os = require('os')
+const path = require('path')
+const { pipeline } = require('stream/promises')
+
+const ConfigManager = require('./configmanager')
+
+function getProfileBaseDirectory(profileId){
+    return path.join(ConfigManager.getDataDirectory(), 'profiles', profileId)
+}
+
+function getProfileDownloadDirectory(profileId){
+    return path.join(getProfileBaseDirectory(profileId), 'downloads')
+}
+
+function getProfileCacheFile(profileId, fileName){
+    return path.join(getProfileDownloadDirectory(profileId), fileName)
+}
+
+function getServerBundleDirectory(profile){
+    return path.join(getProfileBaseDirectory(profile.id), profile.serverDirectoryName || 'server')
+}
+
+function isRemoteSource(source){
+    return /^https?:\/\//i.test(source)
+}
+
+function resolveLocalSource(source){
+    if(source == null){
+        return null
+    }
+
+    if(source.startsWith('file://')){
+        return decodeURIComponent(source.substring('file://'.length))
+    }
+
+    return path.resolve(source)
+}
+
+async function downloadSourceToFile(source, destination){
+    await fs.ensureDir(path.dirname(destination))
+
+    if(isRemoteSource(source)){
+        await pipeline(
+            got.stream(source),
+            fs.createWriteStream(destination)
+        )
+        return destination
+    }
+
+    const localSource = resolveLocalSource(source)
+    const localStat = await fs.stat(localSource)
+    if(localStat.isDirectory()){
+        throw new Error(`Directory source is not supported for archive cache: ${localSource}`)
+    }
+    await fs.copy(localSource, destination, { overwrite: true })
+    return destination
+}
+
+async function extractZipToDirectory(zipPath, destination){
+    const tempDir = await fs.mkdtemp(path.join(os.tmpdir(), 'launcher-assets-'))
+    try {
+        await fs.ensureDir(tempDir)
+        new AdmZip(zipPath).extractAllTo(tempDir, true)
+
+        const rootEntries = (await fs.readdir(tempDir)).filter((entry) => entry !== '__MACOSX')
+        await fs.remove(destination)
+
+        if(rootEntries.length === 1){
+            const onlyEntry = path.join(tempDir, rootEntries[0])
+            const entryStat = await fs.stat(onlyEntry)
+            if(entryStat.isDirectory()){
+                await fs.copy(onlyEntry, destination, { overwrite: true })
+                return
+            }
+        }
+
+        await fs.copy(tempDir, destination, { overwrite: true })
+    } finally {
+        await fs.remove(tempDir)
+    }
+}
+
+async function ensureCachedArchive(profileId, source, fileName){
+    const cachePath = getProfileCacheFile(profileId, fileName)
+    await downloadSourceToFile(source, cachePath)
+    return cachePath
+}
+
+exports.getProfileBaseDirectory = getProfileBaseDirectory
+exports.getServerBundleDirectory = getServerBundleDirectory
+
+exports.prefetchProfileAssets = async function(profile){
+    if(profile.worldArchiveUrl){
+        await ensureCachedArchive(profile.id, profile.worldArchiveUrl, 'world.zip')
+    }
+    if(profile.serverBundleUrl){
+        await ensureCachedArchive(profile.id, profile.serverBundleUrl, 'server.zip')
+    }
+
+    const currentState = ConfigManager.getLibraryProfileAssetState(profile.id)
+    ConfigManager.setLibraryProfileAssetState(profile.id, {
+        ...currentState,
+        prefetchedAt: new Date().toISOString()
+    })
+    ConfigManager.save()
+}
+
+exports.ensureWorldInstalled = async function(profile, serverId){
+    if(!profile.worldArchiveUrl || !profile.worldDirectoryName){
+        return null
+    }
+
+    const savesDirectory = path.join(ConfigManager.getInstanceDirectory(), serverId, 'saves')
+    const targetWorldDirectory = path.join(savesDirectory, profile.worldDirectoryName)
+
+    await fs.ensureDir(savesDirectory)
+    if(isRemoteSource(profile.worldArchiveUrl) || profile.worldArchiveUrl.endsWith('.zip') || profile.worldArchiveUrl.startsWith('file://')){
+        const cachePath = await ensureCachedArchive(profile.id, profile.worldArchiveUrl, 'world.zip')
+        await extractZipToDirectory(cachePath, targetWorldDirectory)
+    } else {
+        await fs.remove(targetWorldDirectory)
+        await fs.copy(resolveLocalSource(profile.worldArchiveUrl), targetWorldDirectory, { overwrite: true })
+    }
+
+    ConfigManager.setLibraryQuickPlayWorld(profile.id, profile.worldDirectoryName)
+    ConfigManager.setLibraryProfileAssetState(profile.id, {
+        worldInstalledAt: new Date().toISOString(),
+        worldInstalledServerId: serverId,
+        worldDirectoryName: profile.worldDirectoryName
+    })
+    ConfigManager.save()
+
+    return targetWorldDirectory
+}
+
+exports.ensureServerBundleInstalled = async function(profile){
+    if(!profile.serverBundleUrl){
+        return null
+    }
+
+    const targetDirectory = getServerBundleDirectory(profile)
+    if(isRemoteSource(profile.serverBundleUrl) || profile.serverBundleUrl.endsWith('.zip') || profile.serverBundleUrl.startsWith('file://')){
+        const cachePath = await ensureCachedArchive(profile.id, profile.serverBundleUrl, 'server.zip')
+        await extractZipToDirectory(cachePath, targetDirectory)
+    } else {
+        await fs.remove(targetDirectory)
+        await fs.copy(resolveLocalSource(profile.serverBundleUrl), targetDirectory, { overwrite: true })
+    }
+
+    ConfigManager.setLibraryProfileAssetState(profile.id, {
+        serverBundleInstalledAt: new Date().toISOString(),
+        serverBundleDirectory: targetDirectory
+    })
+    ConfigManager.save()
+
+    return targetDirectory
+}
+
+exports.prepareProfileForLaunch = async function(profile, serverId){
+    if(profile.kind === 'map'){
+        return exports.ensureWorldInstalled(profile, serverId)
+    }
+
+    return null
+}

app/assets/js/scripts/install.js

@@ -0,0 +1,307 @@
+const CatalogManager = require('./assets/js/catalogmanager')
+const ConfigManager = require('./assets/js/configmanager')
+const ProfileAssetManager = require('./assets/js/profileassetmanager')
+
+const installCatalogList = document.getElementById('installCatalogList')
+const installDetailTitle = document.getElementById('installDetailTitle')
+const installDetailSummary = document.getElementById('installDetailSummary')
+const installDetailMeta = document.getElementById('installDetailMeta')
+const installDetailInfo = document.getElementById('installDetailInfo')
+const installDetailBody = document.getElementById('installDetailBody')
+const installDetailAddButton = document.getElementById('installDetailAddButton')
+
+let selectedProfileId = null
+let latestCatalog = null
+
+function describeProfileKind(kind){
+    switch(kind){
+        case 'map':
+            return '오리지널 맵'
+        case 'server-pack':
+            return '플러그인 맵 + 서버팩'
+        case 'modpack':
+        default:
+            return '모드팩'
+    }
+}
+
+function createInstallBadge(text){
+    const badge = document.createElement('span')
+    badge.className = 'launcherBadge'
+    badge.textContent = text
+    return badge
+}
+
+function createInfoLine(label, value){
+    const line = document.createElement('div')
+    line.className = 'launcherInfoLine'
+
+    const labelElement = document.createElement('span')
+    labelElement.className = 'launcherInfoLabel'
+    labelElement.textContent = label
+
+    const valueElement = document.createElement('span')
+    valueElement.className = 'launcherInfoValue'
+    valueElement.textContent = value
+
+    line.appendChild(labelElement)
+    line.appendChild(valueElement)
+    return line
+}
+
+function showInstallMessage(title, message){
+    if(typeof setOverlayContent === 'function'){
+        setOverlayContent(title, message, '확인')
+        setOverlayHandler(() => toggleOverlay(false))
+        toggleOverlay(true)
+    }
+}
+
+function buildDetailText(profile){
+    if(typeof profile.details === 'string' && profile.details.trim().length > 0){
+        return profile.details.trim()
+    }
+
+    switch(profile.kind){
+        case 'map':
+            return '이 프로필은 싱글플레이 월드를 바로 실행하기 위한 항목입니다. 필요한 클라이언트 배포 파일과 월드 자료는 관리자가 미리 등록해둡니다.'
+        case 'server-pack':
+            return '이 프로필은 서버 실행/접속 흐름을 함께 다루는 항목입니다. 클라이언트 파일과 서버 번들은 관리자가 미리 등록하며, 사용자는 라이브러리에서 실행과 접속만 진행합니다.'
+        case 'modpack':
+        default:
+            return '이 프로필은 일반 모드팩 클라이언트입니다. 필요한 배포 파일은 관리자가 미리 등록하며, 사용자는 라이브러리에 추가한 뒤 실행만 하면 됩니다.'
+    }
+}
+
+function renderDetailPanel(profile){
+    const installedIds = new Set(
+        ConfigManager.getInstalledLibraryProfiles().map((installedProfile) => installedProfile.id)
+    )
+    const installed = installedIds.has(profile.id)
+
+    installDetailTitle.textContent = profile.name
+    installDetailSummary.textContent = profile.description || '설명이 없습니다.'
+    installDetailMeta.innerHTML = ''
+    installDetailMeta.appendChild(createInstallBadge(describeProfileKind(profile.kind)))
+    if(installed){
+        installDetailMeta.appendChild(createInstallBadge('라이브러리 보유'))
+    }
+    if(!profile.launchReady){
+        installDetailMeta.appendChild(createInstallBadge('실행 준비 필요'))
+    }
+    if(profile.kind === 'server-pack' && profile.hostReady){
+        installDetailMeta.appendChild(createInstallBadge('로컬 호스팅 가능'))
+    }
+
+    installDetailInfo.innerHTML = ''
+    installDetailInfo.appendChild(createInfoLine('프로필 ID', profile.id))
+    installDetailInfo.appendChild(createInfoLine('종류', describeProfileKind(profile.kind)))
+    installDetailInfo.appendChild(createInfoLine('실행 준비', profile.launchReady ? '완료' : '추가 설정 필요'))
+
+    if(profile.defaultServerAddress){
+        installDetailInfo.appendChild(createInfoLine('기본 주소', profile.defaultServerAddress))
+    }
+    if(profile.kind === 'map' && profile.worldDirectoryName){
+        installDetailInfo.appendChild(createInfoLine('월드 폴더', profile.worldDirectoryName))
+    }
+    if(profile.kind === 'server-pack'){
+        installDetailInfo.appendChild(createInfoLine('로컬 호스팅', profile.hostReady ? '가능' : '관리자 설정 필요'))
+    }
+    if(profile.launchIssues.length > 0){
+        installDetailInfo.appendChild(createInfoLine('확인 필요', profile.launchIssues.join(' / ')))
+    } else if(profile.hostIssues.length > 0){
+        installDetailInfo.appendChild(createInfoLine('호스팅 참고', profile.hostIssues.join(' / ')))
+    }
+
+    installDetailBody.textContent = buildDetailText(profile)
+    installDetailAddButton.disabled = installed || !profile.launchReady
+    installDetailAddButton.textContent = installed ? '이미 라이브러리에 있음' : '라이브러리에 추가'
+    installDetailAddButton.onclick = async () => {
+        try {
+            const installedProfile = await CatalogManager.installProfile(profile.id)
+            await ProfileAssetManager.prefetchProfileAssets(installedProfile)
+            if(installedProfile.kind === 'server-pack' && installedProfile.hostReady){
+                await ProfileAssetManager.ensureServerBundleInstalled(installedProfile)
+            }
+            renderDetailPanel(profile)
+            await renderInstallView()
+            if(typeof refreshLibraryView === 'function'){
+                await refreshLibraryView()
+            }
+            showInstallMessage('추가 완료', `${profile.name} 프로필을 라이브러리에 추가했습니다.`)
+        } catch (error) {
+            console.error(error)
+            const message = error instanceof Error ? error.message : '프로필 설치 중 오류가 발생했습니다.'
+            showInstallMessage('설치 실패', message)
+        }
+    }
+}
+
+function renderEmptyDetailPanel(){
+    installDetailTitle.textContent = '프로필을 선택하세요'
+    installDetailSummary.textContent = '왼쪽 목록에서 모드팩, 맵, 서버팩을 고르면 자세한 설명과 설치 조건을 볼 수 있습니다.'
+    installDetailMeta.innerHTML = ''
+    installDetailInfo.innerHTML = ''
+    installDetailBody.textContent = '관리자가 등록한 프로필 상세 설명이 여기에 표시됩니다.'
+    installDetailAddButton.disabled = true
+    installDetailAddButton.textContent = '라이브러리에 추가'
+    installDetailAddButton.onclick = null
+}
+
+function selectProfile(profileId){
+    selectedProfileId = profileId
+    if(latestCatalog == null){
+        renderEmptyDetailPanel()
+        return
+    }
+
+    const profile = latestCatalog.profiles.find((entry) => entry.id === profileId)
+    if(profile == null){
+        renderEmptyDetailPanel()
+        return
+    }
+
+    renderDetailPanel(profile)
+}
+
+async function renderInstallView(){
+    installCatalogList.innerHTML = ''
+
+    try {
+        const catalog = await CatalogManager.loadCatalog()
+        latestCatalog = catalog
+        const installedIds = new Set(
+            ConfigManager.getInstalledLibraryProfiles().map((profile) => profile.id)
+        )
+
+        if(catalog.sourceError != null){
+            const warningCard = document.createElement('article')
+            warningCard.className = 'launcherCard'
+            warningCard.innerHTML = '<h3 class="launcherCardTitle">카탈로그 로드 경고</h3><p class="launcherCardDescription">관리자가 등록한 카탈로그를 읽지 못했습니다. 현재 보이는 목록이 없다면 배포 주소 또는 로컬 카탈로그 파일을 관리자 측에서 확인해야 합니다.</p>'
+            installCatalogList.appendChild(warningCard)
+        }
+
+        for(const profile of catalog.profiles){
+            const card = document.createElement('article')
+            card.className = 'launcherCard'
+            if(profile.id === selectedProfileId){
+                card.setAttribute('selected', 'true')
+            }
+
+            const header = document.createElement('div')
+            header.className = 'launcherCardHeader'
+
+            const titleGroup = document.createElement('div')
+            titleGroup.className = 'launcherCardTitleGroup'
+
+            const title = document.createElement('h3')
+            title.className = 'launcherCardTitle'
+            title.textContent = profile.name
+
+            const meta = document.createElement('div')
+            meta.className = 'launcherCardMeta'
+            meta.appendChild(createInstallBadge(describeProfileKind(profile.kind)))
+            if(installedIds.has(profile.id)){
+                meta.appendChild(createInstallBadge('설치됨'))
+            }
+            if(profile.kind === 'server-pack' && profile.hostReady){
+                meta.appendChild(createInstallBadge('호스팅 가능'))
+            }
+
+            titleGroup.appendChild(title)
+            titleGroup.appendChild(meta)
+            header.appendChild(titleGroup)
+
+            const description = document.createElement('p')
+            description.className = 'launcherCardDescription'
+            description.textContent = profile.description || '설명이 없습니다.'
+
+            const actions = document.createElement('div')
+            actions.className = 'launcherCardActions'
+
+            const detailButton = document.createElement('button')
+            detailButton.className = 'launcherSecondaryButton'
+            detailButton.textContent = '자세히 보기'
+            detailButton.addEventListener('click', () => {
+                selectProfile(profile.id)
+                renderInstallView()
+            })
+
+            const installButton = document.createElement('button')
+            installButton.className = 'launcherPrimaryButton'
+            installButton.textContent = installedIds.has(profile.id) ? '설치됨' : '라이브러리에 추가'
+            installButton.disabled = installedIds.has(profile.id) || !profile.launchReady
+            installButton.addEventListener('click', async () => {
+                try {
+                    const installedProfile = await CatalogManager.installProfile(profile.id)
+                    await ProfileAssetManager.prefetchProfileAssets(installedProfile)
+                    if(installedProfile.kind === 'server-pack' && installedProfile.hostReady){
+                        await ProfileAssetManager.ensureServerBundleInstalled(installedProfile)
+                    }
+                    selectProfile(profile.id)
+                    await renderInstallView()
+                    if(typeof refreshLibraryView === 'function'){
+                        await refreshLibraryView()
+                    }
+                    showInstallMessage('추가 완료', `${profile.name} 프로필을 라이브러리에 추가했습니다.`)
+                } catch (error) {
+                    console.error(error)
+                    const message = error instanceof Error ? error.message : '프로필 설치 중 오류가 발생했습니다.'
+                    showInstallMessage('설치 실패', message)
+                }
+            })
+
+            actions.appendChild(detailButton)
+            actions.appendChild(installButton)
+
+            card.appendChild(header)
+            card.appendChild(description)
+            card.appendChild(actions)
+            installCatalogList.appendChild(card)
+        }
+
+        if(catalog.profiles.length === 0){
+            renderEmptyDetailPanel()
+            return
+        }
+
+        const selectedProfileStillExists = catalog.profiles.some((profile) => profile.id === selectedProfileId)
+        if(!selectedProfileStillExists){
+            selectedProfileId = catalog.profiles[0].id
+        }
+
+        selectProfile(selectedProfileId)
+    } catch (error) {
+        console.error(error)
+        latestCatalog = null
+        renderEmptyDetailPanel()
+
+        const errorCard = document.createElement('article')
+        errorCard.className = 'launcherCard'
+        errorCard.innerHTML = '<h3 class="launcherCardTitle">카탈로그 로드 실패</h3><p class="launcherCardDescription">관리자가 등록한 카탈로그를 읽지 못했습니다.</p>'
+        installCatalogList.appendChild(errorCard)
+    }
+}
+
+document.getElementById('installOpenSettingsButton').addEventListener('click', async () => {
+    await prepareSettings()
+    switchView(getCurrentView(), VIEWS.settings)
+})
+
+document.getElementById('installBackToLibraryButton').addEventListener('click', async () => {
+    if(typeof refreshLibraryView === 'function'){
+        await refreshLibraryView()
+    }
+    switchView(getCurrentView(), VIEWS.library)
+})
+
+document.getElementById('installDetailOpenLibraryButton').addEventListener('click', async () => {
+    if(typeof refreshLibraryView === 'function'){
+        await refreshLibraryView()
+    }
+    switchView(getCurrentView(), VIEWS.library)
+})
+
+window.refreshInstallView = renderInstallView
+renderEmptyDetailPanel()
+renderInstallView()

app/assets/js/scripts/library.js

@@ -0,0 +1,417 @@
+const { clipboard } = require('electron')
+
+const CatalogManager = require('./assets/js/catalogmanager')
+const ConfigManager = require('./assets/js/configmanager')
+const ProfileAssetManager = require('./assets/js/profileassetmanager')
+const ServerRuntime = require('./assets/js/serverruntime')
+const { DistroAPI } = require('./assets/js/distromanager')
+
+const libraryList = document.getElementById('libraryList')
+const libraryEmptyState = document.getElementById('libraryEmptyState')
+
+function renderLibraryEmptyState(isEmpty){
+    libraryEmptyState.style.display = isEmpty ? 'flex' : 'none'
+}
+
+function createBadge(text){
+    const badge = document.createElement('span')
+    badge.className = 'launcherBadge'
+    badge.textContent = text
+    return badge
+}
+
+function describeProfileKind(kind){
+    switch(kind){
+        case 'map':
+            return '맵'
+        case 'server-pack':
+            return '서버팩'
+        case 'modpack':
+        default:
+            return '모드팩'
+    }
+}
+
+function createParagraph(className, text){
+    const element = document.createElement('p')
+    element.className = className
+    element.textContent = text
+    return element
+}
+
+function createInfoLine(label, value){
+    const line = document.createElement('div')
+    line.className = 'launcherInfoLine'
+
+    const labelElement = document.createElement('span')
+    labelElement.className = 'launcherInfoLabel'
+    labelElement.textContent = label
+
+    const valueElement = document.createElement('span')
+    valueElement.className = 'launcherInfoValue'
+    valueElement.textContent = value
+
+    line.appendChild(labelElement)
+    line.appendChild(valueElement)
+    return line
+}
+
+function showLibraryMessage(title, message){
+    if(typeof setOverlayContent === 'function'){
+        setOverlayContent(title, message, '확인')
+        setOverlayHandler(() => toggleOverlay(false))
+        toggleOverlay(true)
+    }
+}
+
+function describeAssetState(profile){
+    const state = ConfigManager.getLibraryProfileAssetState(profile.id)
+
+    if(profile.kind === 'map'){
+        if(state.worldInstalledAt){
+            return `맵 설치 완료 · ${profile.worldDirectoryName}`
+        }
+        if(profile.worldArchiveUrl){
+            return '맵 아카이브 준비 필요'
+        }
+    }
+
+    if(profile.kind === 'server-pack'){
+        if(state.serverBundleInstalledAt){
+            return '서버 번들 설치 완료'
+        }
+        if(profile.serverBundleUrl){
+            return '서버 번들 준비 필요'
+        }
+    }
+
+    return '추가 자산 없음'
+}
+
+async function prepareProfileAssets(profile){
+    try {
+        await ProfileAssetManager.prefetchProfileAssets(profile)
+        if(profile.kind === 'server-pack' && profile.hostReady){
+            await ProfileAssetManager.ensureServerBundleInstalled(profile)
+        }
+        await renderLibraryView()
+        showLibraryMessage('자료 준비 완료', `${profile.name} 자료를 준비했습니다.`)
+    } catch (error) {
+        console.error(error)
+        showLibraryMessage('자료 준비 실패', '프로필 자료를 내려받거나 해제하는 중 오류가 발생했습니다.')
+    }
+}
+
+async function activateProfile(profile, launchNow = false){
+    if(!profile.configured){
+        const firstIssue = profile.launchIssues?.[0] ?? '이 프로필은 아직 실행 조건이 충족되지 않았습니다.'
+        showLibraryMessage('프로필 설정 필요', firstIssue)
+        return
+    }
+
+    CatalogManager.selectProfile(profile.id)
+    CatalogManager.applyConfiguredProfile()
+
+    try {
+        const distro = await DistroAPI.refreshDistributionOrFallback()
+        if(distro == null){
+            throw new Error('Distribution refresh returned null.')
+        }
+
+        const currentServer = distro.getServerById(ConfigManager.getSelectedServer())
+        if(currentServer == null && typeof distro.getMainServer === 'function'){
+            const mainServer = distro.getMainServer()
+            if(mainServer != null){
+                ConfigManager.setSelectedServer(mainServer.rawServer.id)
+                ConfigManager.save()
+            }
+        }
+
+        const selectedServerId = ConfigManager.getSelectedServer()
+        if(selectedServerId != null){
+            await ProfileAssetManager.prepareProfileForLaunch(profile, selectedServerId)
+        }
+
+        onDistroRefresh(distro)
+
+        if(getCurrentView() === VIEWS.landing){
+            if(launchNow){
+                document.getElementById('launch_button').click()
+            }
+            return
+        }
+
+        switchView(getCurrentView(), VIEWS.landing, 250, 250, () => {}, () => {
+            if(launchNow){
+                document.getElementById('launch_button').click()
+            }
+        })
+    } catch (error) {
+        console.error(error)
+        showLibraryMessage('프로필 로드 실패', '선택한 프로필의 distribution.json 또는 부가 자산을 불러오지 못했습니다.')
+    }
+}
+
+function appendAddressOverrideField(profile, fieldGroup){
+    if(!profile.allowCustomServerAddress){
+        return
+    }
+
+    const label = document.createElement('label')
+    label.className = 'launcherFieldLabel'
+    label.textContent = '접속 주소'
+
+    const input = document.createElement('input')
+    input.className = 'launcherFieldInput'
+    input.type = 'text'
+    input.placeholder = profile.defaultServerAddress || 'example.com:25565'
+    input.value = ConfigManager.getLibraryServerAddressOverride(profile.id) ?? ''
+    input.addEventListener('change', () => {
+        CatalogManager.setServerAddressOverride(profile.id, input.value)
+    })
+
+    fieldGroup.appendChild(label)
+    fieldGroup.appendChild(input)
+}
+
+function appendPublishedAddressField(profile, hostState, fieldGroup){
+    if(!hostState.publishedAddress){
+        return
+    }
+
+    const label = document.createElement('label')
+    label.className = 'launcherFieldLabel'
+    label.textContent = '호스트 공개 주소'
+
+    const row = document.createElement('div')
+    row.className = 'launcherInlineField'
+
+    const input = document.createElement('input')
+    input.className = 'launcherFieldInput'
+    input.type = 'text'
+    input.readOnly = true
+    input.value = hostState.publishedAddress
+
+    const copyButton = document.createElement('button')
+    copyButton.className = 'launcherSecondaryButton'
+    copyButton.textContent = '주소 복사'
+    copyButton.addEventListener('click', () => {
+        clipboard.writeText(hostState.publishedAddress)
+    })
+
+    row.appendChild(input)
+    row.appendChild(copyButton)
+    fieldGroup.appendChild(label)
+    fieldGroup.appendChild(row)
+}
+
+async function renderLibraryView(){
+    libraryList.innerHTML = ''
+
+    try {
+        const installedProfiles = await CatalogManager.getInstalledProfiles()
+        const selectedProfileId = CatalogManager.getSelectedProfileId()
+
+        renderLibraryEmptyState(installedProfiles.length === 0)
+
+        for(const profile of installedProfiles){
+            const hostState = ServerRuntime.getHostedProfileState(profile.id)
+            const card = document.createElement('article')
+            card.className = 'launcherCard'
+            if(profile.id === selectedProfileId){
+                card.setAttribute('selected', 'true')
+            }
+
+            const header = document.createElement('div')
+            header.className = 'launcherCardHeader'
+
+            const titleGroup = document.createElement('div')
+            titleGroup.className = 'launcherCardTitleGroup'
+
+            const title = document.createElement('h3')
+            title.className = 'launcherCardTitle'
+            title.textContent = profile.name
+
+            const meta = document.createElement('div')
+            meta.className = 'launcherCardMeta'
+            meta.appendChild(createBadge(describeProfileKind(profile.kind)))
+            if(profile.isCustom){
+                meta.appendChild(createBadge('커스텀'))
+            }
+            if(profile.id === selectedProfileId){
+                meta.appendChild(createBadge('선택됨'))
+            }
+            if(profile.kind === 'map' && profile.worldDirectoryName){
+                meta.appendChild(createBadge(profile.worldDirectoryName))
+            }
+            if(profile.kind === 'map' && !profile.launchReady){
+                meta.appendChild(createBadge('맵 설정 필요'))
+            }
+            if(profile.kind === 'server-pack' && !profile.hostReady){
+                meta.appendChild(createBadge('호스팅 설정 필요'))
+            }
+            if(hostState.running){
+                meta.appendChild(createBadge(hostState.tunneling ? '서버+터널' : '서버 실행 중'))
+            }
+
+            titleGroup.appendChild(title)
+            titleGroup.appendChild(meta)
+            header.appendChild(titleGroup)
+
+            const description = createParagraph('launcherCardDescription', profile.description || '설명이 없습니다.')
+
+            const infoBlock = document.createElement('div')
+            infoBlock.className = 'launcherInfoBlock'
+            infoBlock.appendChild(createInfoLine('자료 상태', describeAssetState(profile)))
+            infoBlock.appendChild(createInfoLine('실행 준비', profile.launchReady ? '완료' : '추가 설정 필요'))
+            if(profile.defaultServerAddress){
+                infoBlock.appendChild(createInfoLine('기본 주소', profile.defaultServerAddress))
+            }
+            if(profile.kind === 'server-pack'){
+                infoBlock.appendChild(createInfoLine('로컬 호스팅', profile.hostReady ? '가능' : '서버 번들 필요'))
+            }
+            if(hostState.running){
+                infoBlock.appendChild(createInfoLine('호스트 상태', hostState.tunneling ? '터널 연결 중' : '로컬 서버 실행 중'))
+            }
+            if(profile.launchIssues?.length > 0){
+                infoBlock.appendChild(createInfoLine('확인 필요', profile.launchIssues[0]))
+            } else if(profile.hostIssues?.length > 0){
+                infoBlock.appendChild(createInfoLine('호스팅 확인', profile.hostIssues[0]))
+            }
+
+            const fieldGroup = document.createElement('div')
+            fieldGroup.className = 'launcherFieldGroup'
+            appendAddressOverrideField(profile, fieldGroup)
+            appendPublishedAddressField(profile, hostState, fieldGroup)
+
+            const actions = document.createElement('div')
+            actions.className = 'launcherCardActions'
+
+            const prepareButton = document.createElement('button')
+            prepareButton.className = 'launcherSecondaryButton'
+            prepareButton.textContent = '자료 준비'
+            prepareButton.addEventListener('click', async () => {
+                await prepareProfileAssets(profile)
+            })
+
+            const selectButton = document.createElement('button')
+            selectButton.className = 'launcherSecondaryButton'
+            selectButton.textContent = '프로필 선택'
+            selectButton.disabled = !profile.configured
+            selectButton.addEventListener('click', async () => {
+                CatalogManager.selectProfile(profile.id)
+                CatalogManager.applyConfiguredProfile()
+                await renderLibraryView()
+            })
+
+            const openButton = document.createElement('button')
+            openButton.className = 'launcherSecondaryButton'
+            openButton.textContent = '실행 화면'
+            openButton.disabled = !profile.configured
+            openButton.addEventListener('click', async () => {
+                await activateProfile(profile, false)
+            })
+
+            const launchButton = document.createElement('button')
+            launchButton.className = 'launcherPrimaryButton'
+            launchButton.textContent = profile.kind === 'map' ? '맵 실행' : '바로 실행'
+            launchButton.disabled = !profile.configured
+            launchButton.addEventListener('click', async () => {
+                await activateProfile(profile, true)
+            })
+
+            actions.appendChild(prepareButton)
+            actions.appendChild(selectButton)
+            actions.appendChild(openButton)
+            actions.appendChild(launchButton)
+
+            if(profile.kind === 'server-pack'){
+                const startHostButton = document.createElement('button')
+                startHostButton.className = 'launcherSecondaryButton'
+                startHostButton.textContent = '서버 실행'
+                startHostButton.disabled = hostState.running || !profile.hostReady
+                startHostButton.addEventListener('click', async () => {
+                    try {
+                        await ServerRuntime.startHostedProfile(profile)
+                        await renderLibraryView()
+                    } catch (error) {
+                        console.error(error)
+                        showLibraryMessage('서버 실행 실패', '서버 번들이 준비되지 않았거나 시작 명령을 찾지 못했습니다.')
+                    }
+                })
+
+                const stopHostButton = document.createElement('button')
+                stopHostButton.className = 'launcherGhostButton'
+                stopHostButton.textContent = '서버 중지'
+                stopHostButton.disabled = !hostState.running
+                stopHostButton.addEventListener('click', async () => {
+                    ServerRuntime.stopHostedProfile(profile.id)
+                    await renderLibraryView()
+                })
+
+                actions.appendChild(startHostButton)
+                actions.appendChild(stopHostButton)
+            }
+
+            const removeButton = document.createElement('button')
+            removeButton.className = 'launcherGhostButton'
+            removeButton.textContent = '제거'
+            removeButton.addEventListener('click', async () => {
+                ServerRuntime.stopHostedProfile(profile.id)
+                CatalogManager.removeProfile(profile.id)
+                await renderLibraryView()
+                if(typeof refreshInstallView === 'function'){
+                    await refreshInstallView()
+                }
+            })
+
+            actions.appendChild(removeButton)
+
+            card.appendChild(header)
+            card.appendChild(description)
+            card.appendChild(infoBlock)
+            if(fieldGroup.childNodes.length > 0){
+                card.appendChild(fieldGroup)
+            }
+            card.appendChild(actions)
+            libraryList.appendChild(card)
+        }
+    } catch (error) {
+        console.error(error)
+        renderLibraryEmptyState(false)
+        const errorCard = document.createElement('article')
+        errorCard.className = 'launcherCard'
+        errorCard.innerHTML = '<h3 class="launcherCardTitle">라이브러리 로드 실패</h3><p class="launcherCardDescription">선택한 카탈로그를 읽지 못했습니다. 설치 페이지에서 카탈로그 경로를 다시 확인하세요.</p>'
+        libraryList.appendChild(errorCard)
+    }
+}
+
+document.getElementById('libraryOpenInstallButton').addEventListener('click', async () => {
+    if(typeof refreshInstallView === 'function'){
+        await refreshInstallView()
+    }
+    switchView(getCurrentView(), VIEWS.install)
+})
+
+document.getElementById('libraryOpenSettingsButton').addEventListener('click', async () => {
+    await prepareSettings()
+    switchView(getCurrentView(), VIEWS.settings)
+})
+
+document.getElementById('libraryOpenLaunchButton').addEventListener('click', async () => {
+    const selectedProfile = CatalogManager.getSelectedProfileSync()
+    if(selectedProfile == null){
+        switchView(getCurrentView(), VIEWS.install)
+        return
+    }
+    await activateProfile(selectedProfile, false)
+})
+
+setInterval(() => {
+    if(getCurrentView() === VIEWS.library && ServerRuntime.hasRunningProfiles()){
+        renderLibraryView()
+    }
+}, 3000)
+
+window.refreshLibraryView = renderLibraryView
+renderLibraryView()

app/assets/js/scripts/login.js

@@ -0,0 +1,234 @@
+/**
+ * Script for login.ejs
+ */
+// Validation Regexes.
+const validUsername         = /^[a-zA-Z0-9_]{1,16}$/
+const basicEmail            = /^\S+@\S+\.\S+$/
+//const validEmail          = /^(([^<>()\[\]\.,;:\s@\"]+(\.[^<>()\[\]\.,;:\s@\"]+)*)|(\".+\"))@(([^<>()[\]\.,;:\s@\"]+\.)+[^<>()[\]\.,;:\s@\"]{2,})$/i
+
+// Login Elements
+const loginCancelContainer  = document.getElementById('loginCancelContainer')
+const loginCancelButton     = document.getElementById('loginCancelButton')
+const loginEmailError       = document.getElementById('loginEmailError')
+const loginUsername         = document.getElementById('loginUsername')
+const loginPasswordError    = document.getElementById('loginPasswordError')
+const loginPassword         = document.getElementById('loginPassword')
+const checkmarkContainer    = document.getElementById('checkmarkContainer')
+const loginRememberOption   = document.getElementById('loginRememberOption')
+const loginButton           = document.getElementById('loginButton')
+const loginForm             = document.getElementById('loginForm')
+
+// Control variables.
+let lu = false, lp = false
+
+
+/**
+ * Show a login error.
+ * 
+ * @param {HTMLElement} element The element on which to display the error.
+ * @param {string} value The error text.
+ */
+function showError(element, value){
+    element.innerHTML = value
+    element.style.opacity = 1
+}
+
+/**
+ * Shake a login error to add emphasis.
+ * 
+ * @param {HTMLElement} element The element to shake.
+ */
+function shakeError(element){
+    if(element.style.opacity == 1){
+        element.classList.remove('shake')
+        void element.offsetWidth
+        element.classList.add('shake')
+    }
+}
+
+/**
+ * Validate that an email field is neither empty nor invalid.
+ * 
+ * @param {string} value The email value.
+ */
+function validateEmail(value){
+    if(value){
+        if(!basicEmail.test(value) && !validUsername.test(value)){
+            showError(loginEmailError, Lang.queryJS('login.error.invalidValue'))
+            loginDisabled(true)
+            lu = false
+        } else {
+            loginEmailError.style.opacity = 0
+            lu = true
+            if(lp){
+                loginDisabled(false)
+            }
+        }
+    } else {
+        lu = false
+        showError(loginEmailError, Lang.queryJS('login.error.requiredValue'))
+        loginDisabled(true)
+    }
+}
+
+/**
+ * Validate that the password field is not empty.
+ * 
+ * @param {string} value The password value.
+ */
+function validatePassword(value){
+    if(value){
+        loginPasswordError.style.opacity = 0
+        lp = true
+        if(lu){
+            loginDisabled(false)
+        }
+    } else {
+        lp = false
+        showError(loginPasswordError, Lang.queryJS('login.error.invalidValue'))
+        loginDisabled(true)
+    }
+}
+
+// Emphasize errors with shake when focus is lost.
+loginUsername.addEventListener('focusout', (e) => {
+    validateEmail(e.target.value)
+    shakeError(loginEmailError)
+})
+loginPassword.addEventListener('focusout', (e) => {
+    validatePassword(e.target.value)
+    shakeError(loginPasswordError)
+})
+
+// Validate input for each field.
+loginUsername.addEventListener('input', (e) => {
+    validateEmail(e.target.value)
+})
+loginPassword.addEventListener('input', (e) => {
+    validatePassword(e.target.value)
+})
+
+/**
+ * Enable or disable the login button.
+ * 
+ * @param {boolean} v True to enable, false to disable.
+ */
+function loginDisabled(v){
+    if(loginButton.disabled !== v){
+        loginButton.disabled = v
+    }
+}
+
+/**
+ * Enable or disable loading elements.
+ * 
+ * @param {boolean} v True to enable, false to disable.
+ */
+function loginLoading(v){
+    if(v){
+        loginButton.setAttribute('loading', v)
+        loginButton.innerHTML = loginButton.innerHTML.replace(Lang.queryJS('login.login'), Lang.queryJS('login.loggingIn'))
+    } else {
+        loginButton.removeAttribute('loading')
+        loginButton.innerHTML = loginButton.innerHTML.replace(Lang.queryJS('login.loggingIn'), Lang.queryJS('login.login'))
+    }
+}
+
+/**
+ * Enable or disable login form.
+ * 
+ * @param {boolean} v True to enable, false to disable.
+ */
+function formDisabled(v){
+    loginDisabled(v)
+    loginCancelButton.disabled = v
+    loginUsername.disabled = v
+    loginPassword.disabled = v
+    if(v){
+        checkmarkContainer.setAttribute('disabled', v)
+    } else {
+        checkmarkContainer.removeAttribute('disabled')
+    }
+    loginRememberOption.disabled = v
+}
+
+let loginViewOnSuccess = VIEWS.library
+let loginViewOnCancel = VIEWS.settings
+let loginViewCancelHandler
+
+function loginCancelEnabled(val){
+    if(val){
+        $(loginCancelContainer).show()
+    } else {
+        $(loginCancelContainer).hide()
+    }
+}
+
+loginCancelButton.onclick = (e) => {
+    switchView(getCurrentView(), loginViewOnCancel, 500, 500, () => {
+        loginUsername.value = ''
+        loginPassword.value = ''
+        loginCancelEnabled(false)
+        if(loginViewCancelHandler != null){
+            loginViewCancelHandler()
+            loginViewCancelHandler = null
+        }
+    })
+}
+
+// Disable default form behavior.
+loginForm.onsubmit = () => { return false }
+
+// Bind login button behavior.
+loginButton.addEventListener('click', () => {
+    // Disable form.
+    formDisabled(true)
+
+    // Show loading stuff.
+    loginLoading(true)
+
+    AuthManager.addMojangAccount(loginUsername.value, loginPassword.value).then((value) => {
+        updateSelectedAccount(value)
+        loginButton.innerHTML = loginButton.innerHTML.replace(Lang.queryJS('login.loggingIn'), Lang.queryJS('login.success'))
+        $('.circle-loader').toggleClass('load-complete')
+        $('.checkmark').toggle()
+        setTimeout(() => {
+            switchView(VIEWS.login, loginViewOnSuccess, 500, 500, async () => {
+                // Temporary workaround
+                if(loginViewOnSuccess === VIEWS.settings){
+                    await prepareSettings()
+                }
+                loginViewOnSuccess = VIEWS.library // Reset this for good measure.
+                loginCancelEnabled(false) // Reset this for good measure.
+                loginViewCancelHandler = null // Reset this for good measure.
+                loginUsername.value = ''
+                loginPassword.value = ''
+                $('.circle-loader').toggleClass('load-complete')
+                $('.checkmark').toggle()
+                loginLoading(false)
+                loginButton.innerHTML = loginButton.innerHTML.replace(Lang.queryJS('login.success'), Lang.queryJS('login.login'))
+                formDisabled(false)
+            })
+        }, 1000)
+    }).catch((displayableError) => {
+        loginLoading(false)
+
+        let actualDisplayableError
+        if(isDisplayableError(displayableError)) {
+            msftLoginLogger.error('Error while logging in.', displayableError)
+            actualDisplayableError = displayableError
+        } else {
+            // Uh oh.
+            msftLoginLogger.error('Unhandled error during login.', displayableError)
+            actualDisplayableError = Lang.queryJS('login.error.unknown')
+        }
+
+        setOverlayContent(actualDisplayableError.title, actualDisplayableError.desc, Lang.queryJS('login.tryAgain'))
+        setOverlayHandler(() => {
+            formDisabled(false)
+            toggleOverlay(false)
+        })
+        toggleOverlay(true)
+    })
+
+})

app/assets/js/scripts/loginOptions.js

@@ -0,0 +1,50 @@
+const loginOptionsCancelContainer = document.getElementById('loginOptionCancelContainer')
+const loginOptionMicrosoft = document.getElementById('loginOptionMicrosoft')
+const loginOptionMojang = document.getElementById('loginOptionMojang')
+const loginOptionsCancelButton = document.getElementById('loginOptionCancelButton')
+
+let loginOptionsCancellable = false
+
+let loginOptionsViewOnLoginSuccess
+let loginOptionsViewOnLoginCancel
+let loginOptionsViewOnCancel
+let loginOptionsViewCancelHandler
+
+function loginOptionsCancelEnabled(val){
+    if(val){
+        $(loginOptionsCancelContainer).show()
+    } else {
+        $(loginOptionsCancelContainer).hide()
+    }
+}
+
+loginOptionMicrosoft.onclick = (e) => {
+    switchView(getCurrentView(), VIEWS.waiting, 500, 500, () => {
+        ipcRenderer.send(
+            MSFT_OPCODE.OPEN_LOGIN,
+            loginOptionsViewOnLoginSuccess,
+            loginOptionsViewOnLoginCancel
+        )
+    })
+}
+
+loginOptionMojang.onclick = (e) => {
+    switchView(getCurrentView(), VIEWS.login, 500, 500, () => {
+        loginViewOnSuccess = loginOptionsViewOnLoginSuccess
+        loginViewOnCancel = loginOptionsViewOnLoginCancel
+        loginCancelEnabled(true)
+    })
+}
+
+loginOptionsCancelButton.onclick = (e) => {
+    switchView(getCurrentView(), loginOptionsViewOnCancel, 500, 500, () => {
+        // Clear login values (Mojang login)
+        // No cleanup needed for Microsoft.
+        loginUsername.value = ''
+        loginPassword.value = ''
+        if(loginOptionsViewCancelHandler != null){
+            loginOptionsViewCancelHandler()
+            loginOptionsViewCancelHandler = null
+        }
+    })
+}

app/assets/js/scripts/overlay.js

@@ -0,0 +1,324 @@
+/**
+ * Script for overlay.ejs
+ */
+
+/* Overlay Wrapper Functions */
+
+/**
+ * Check to see if the overlay is visible.
+ * 
+ * @returns {boolean} Whether or not the overlay is visible.
+ */
+function isOverlayVisible(){
+    return document.getElementById('main').hasAttribute('overlay')
+}
+
+let overlayHandlerContent
+
+/**
+ * Overlay keydown handler for a non-dismissable overlay.
+ * 
+ * @param {KeyboardEvent} e The keydown event.
+ */
+function overlayKeyHandler (e){
+    if(e.key === 'Enter' || e.key === 'Escape'){
+        document.getElementById(overlayHandlerContent).getElementsByClassName('overlayKeybindEnter')[0].click()
+    }
+}
+/**
+ * Overlay keydown handler for a dismissable overlay.
+ * 
+ * @param {KeyboardEvent} e The keydown event.
+ */
+function overlayKeyDismissableHandler (e){
+    if(e.key === 'Enter'){
+        document.getElementById(overlayHandlerContent).getElementsByClassName('overlayKeybindEnter')[0].click()
+    } else if(e.key === 'Escape'){
+        document.getElementById(overlayHandlerContent).getElementsByClassName('overlayKeybindEsc')[0].click()
+    }
+}
+
+/**
+ * Bind overlay keydown listeners for escape and exit.
+ * 
+ * @param {boolean} state Whether or not to add new event listeners.
+ * @param {string} content The overlay content which will be shown.
+ * @param {boolean} dismissable Whether or not the overlay is dismissable 
+ */
+function bindOverlayKeys(state, content, dismissable){
+    overlayHandlerContent = content
+    document.removeEventListener('keydown', overlayKeyHandler)
+    document.removeEventListener('keydown', overlayKeyDismissableHandler)
+    if(state){
+        if(dismissable){
+            document.addEventListener('keydown', overlayKeyDismissableHandler)
+        } else {
+            document.addEventListener('keydown', overlayKeyHandler)
+        }
+    }
+}
+
+/**
+ * Toggle the visibility of the overlay.
+ * 
+ * @param {boolean} toggleState True to display, false to hide.
+ * @param {boolean} dismissable Optional. True to show the dismiss option, otherwise false.
+ * @param {string} content Optional. The content div to be shown.
+ */
+function toggleOverlay(toggleState, dismissable = false, content = 'overlayContent'){
+    if(toggleState == null){
+        toggleState = !document.getElementById('main').hasAttribute('overlay')
+    }
+    if(typeof dismissable === 'string'){
+        content = dismissable
+        dismissable = false
+    }
+    bindOverlayKeys(toggleState, content, dismissable)
+    if(toggleState){
+        document.getElementById('main').setAttribute('overlay', true)
+        // Make things untabbable.
+        $('#main *').attr('tabindex', '-1')
+        $('#' + content).parent().children().hide()
+        $('#' + content).show()
+        if(dismissable){
+            $('#overlayDismiss').show()
+        } else {
+            $('#overlayDismiss').hide()
+        }
+        $('#overlayContainer').fadeIn({
+            duration: 250,
+            start: () => {
+                if(getCurrentView() === VIEWS.settings){
+                    document.getElementById('settingsContainer').style.backgroundColor = 'transparent'
+                }
+            }
+        })
+    } else {
+        document.getElementById('main').removeAttribute('overlay')
+        // Make things tabbable.
+        $('#main *').removeAttr('tabindex')
+        $('#overlayContainer').fadeOut({
+            duration: 250,
+            start: () => {
+                if(getCurrentView() === VIEWS.settings){
+                    document.getElementById('settingsContainer').style.backgroundColor = 'rgba(0, 0, 0, 0.50)'
+                }
+            },
+            complete: () => {
+                $('#' + content).parent().children().hide()
+                $('#' + content).show()
+                if(dismissable){
+                    $('#overlayDismiss').show()
+                } else {
+                    $('#overlayDismiss').hide()
+                }
+            }
+        })
+    }
+}
+
+async function toggleServerSelection(toggleState){
+    await prepareServerSelectionList()
+    toggleOverlay(toggleState, true, 'serverSelectContent')
+}
+
+/**
+ * Set the content of the overlay.
+ * 
+ * @param {string} title Overlay title text.
+ * @param {string} description Overlay description text.
+ * @param {string} acknowledge Acknowledge button text.
+ * @param {string} dismiss Dismiss button text.
+ */
+function setOverlayContent(title, description, acknowledge, dismiss = Lang.queryJS('overlay.dismiss')){
+    document.getElementById('overlayTitle').innerHTML = title
+    document.getElementById('overlayDesc').innerHTML = description
+    document.getElementById('overlayAcknowledge').innerHTML = acknowledge
+    document.getElementById('overlayDismiss').innerHTML = dismiss
+}
+
+/**
+ * Set the onclick handler of the overlay acknowledge button.
+ * If the handler is null, a default handler will be added.
+ * 
+ * @param {function} handler 
+ */
+function setOverlayHandler(handler){
+    if(handler == null){
+        document.getElementById('overlayAcknowledge').onclick = () => {
+            toggleOverlay(false)
+        }
+    } else {
+        document.getElementById('overlayAcknowledge').onclick = handler
+    }
+}
+
+/**
+ * Set the onclick handler of the overlay dismiss button.
+ * If the handler is null, a default handler will be added.
+ * 
+ * @param {function} handler 
+ */
+function setDismissHandler(handler){
+    if(handler == null){
+        document.getElementById('overlayDismiss').onclick = () => {
+            toggleOverlay(false)
+        }
+    } else {
+        document.getElementById('overlayDismiss').onclick = handler
+    }
+}
+
+/* Server Select View */
+
+document.getElementById('serverSelectConfirm').addEventListener('click', async () => {
+    const listings = document.getElementsByClassName('serverListing')
+    for(let i=0; i<listings.length; i++){
+        if(listings[i].hasAttribute('selected')){
+            const serv = (await DistroAPI.getDistribution()).getServerById(listings[i].getAttribute('servid'))
+            updateSelectedServer(serv)
+            refreshServerStatus(true)
+            toggleOverlay(false)
+            return
+        }
+    }
+    // None are selected? Not possible right? Meh, handle it.
+    if(listings.length > 0){
+        const serv = (await DistroAPI.getDistribution()).getServerById(listings[i].getAttribute('servid'))
+        updateSelectedServer(serv)
+        toggleOverlay(false)
+    }
+})
+
+document.getElementById('accountSelectConfirm').addEventListener('click', async () => {
+    const listings = document.getElementsByClassName('accountListing')
+    for(let i=0; i<listings.length; i++){
+        if(listings[i].hasAttribute('selected')){
+            const authAcc = ConfigManager.setSelectedAccount(listings[i].getAttribute('uuid'))
+            ConfigManager.save()
+            updateSelectedAccount(authAcc)
+            if(getCurrentView() === VIEWS.settings) {
+                await prepareSettings()
+            }
+            toggleOverlay(false)
+            validateSelectedAccount()
+            return
+        }
+    }
+    // None are selected? Not possible right? Meh, handle it.
+    if(listings.length > 0){
+        const authAcc = ConfigManager.setSelectedAccount(listings[0].getAttribute('uuid'))
+        ConfigManager.save()
+        updateSelectedAccount(authAcc)
+        if(getCurrentView() === VIEWS.settings) {
+            await prepareSettings()
+        }
+        toggleOverlay(false)
+        validateSelectedAccount()
+    }
+})
+
+// Bind server select cancel button.
+document.getElementById('serverSelectCancel').addEventListener('click', () => {
+    toggleOverlay(false)
+})
+
+document.getElementById('accountSelectCancel').addEventListener('click', () => {
+    $('#accountSelectContent').fadeOut(250, () => {
+        $('#overlayContent').fadeIn(250)
+    })
+})
+
+function setServerListingHandlers(){
+    const listings = Array.from(document.getElementsByClassName('serverListing'))
+    listings.map((val) => {
+        val.onclick = e => {
+            if(val.hasAttribute('selected')){
+                return
+            }
+            const cListings = document.getElementsByClassName('serverListing')
+            for(let i=0; i<cListings.length; i++){
+                if(cListings[i].hasAttribute('selected')){
+                    cListings[i].removeAttribute('selected')
+                }
+            }
+            val.setAttribute('selected', '')
+            document.activeElement.blur()
+        }
+    })
+}
+
+function setAccountListingHandlers(){
+    const listings = Array.from(document.getElementsByClassName('accountListing'))
+    listings.map((val) => {
+        val.onclick = e => {
+            if(val.hasAttribute('selected')){
+                return
+            }
+            const cListings = document.getElementsByClassName('accountListing')
+            for(let i=0; i<cListings.length; i++){
+                if(cListings[i].hasAttribute('selected')){
+                    cListings[i].removeAttribute('selected')
+                }
+            }
+            val.setAttribute('selected', '')
+            document.activeElement.blur()
+        }
+    })
+}
+
+async function populateServerListings(){
+    const distro = await DistroAPI.getDistribution()
+    const giaSel = ConfigManager.getSelectedServer()
+    const servers = distro.servers
+    let htmlString = ''
+    for(const serv of servers){
+        htmlString += `<button class="serverListing" servid="${serv.rawServer.id}" ${serv.rawServer.id === giaSel ? 'selected' : ''}>
+            <img class="serverListingImg" src="${serv.rawServer.icon}"/>
+            <div class="serverListingDetails">
+                <span class="serverListingName">${serv.rawServer.name}</span>
+                <span class="serverListingDescription">${serv.rawServer.description}</span>
+                <div class="serverListingInfo">
+                    <div class="serverListingVersion">${serv.rawServer.minecraftVersion}</div>
+                    <div class="serverListingRevision">${serv.rawServer.version}</div>
+                    ${serv.rawServer.mainServer ? `<div class="serverListingStarWrapper">
+                        <svg id="Layer_1" viewBox="0 0 107.45 104.74" width="20px" height="20px">
+                            <defs>
+                                <style>.cls-1{fill:#fff;}.cls-2{fill:none;stroke:#fff;stroke-miterlimit:10;}</style>
+                            </defs>
+                            <path class="cls-1" d="M100.93,65.54C89,62,68.18,55.65,63.54,52.13c2.7-5.23,18.8-19.2,28-27.55C81.36,31.74,63.74,43.87,58.09,45.3c-2.41-5.37-3.61-26.52-4.37-39-.77,12.46-2,33.64-4.36,39-5.7-1.46-23.3-13.57-33.49-20.72,9.26,8.37,25.39,22.36,28,27.55C39.21,55.68,18.47,62,6.52,65.55c12.32-2,33.63-6.06,39.34-4.9-.16,5.87-8.41,26.16-13.11,37.69,6.1-10.89,16.52-30.16,21-33.9,4.5,3.79,14.93,23.09,21,34C70,86.84,61.73,66.48,61.59,60.65,67.36,59.49,88.64,63.52,100.93,65.54Z"/>
+                            <circle class="cls-2" cx="53.73" cy="53.9" r="38"/>
+                        </svg>
+                        <span class="serverListingStarTooltip">${Lang.queryJS('settings.serverListing.mainServer')}</span>
+                    </div>` : ''}
+                </div>
+            </div>
+        </button>`
+    }
+    document.getElementById('serverSelectListScrollable').innerHTML = htmlString
+
+}
+
+function populateAccountListings(){
+    const accountsObj = ConfigManager.getAuthAccounts()
+    const accounts = Array.from(Object.keys(accountsObj), v=>accountsObj[v])
+    let htmlString = ''
+    for(let i=0; i<accounts.length; i++){
+        htmlString += `<button class="accountListing" uuid="${accounts[i].uuid}" ${i===0 ? 'selected' : ''}>
+            <img src="https://mc-heads.net/head/${accounts[i].uuid}/40">
+            <div class="accountListingName">${accounts[i].displayName}</div>
+        </button>`
+    }
+    document.getElementById('accountSelectListScrollable').innerHTML = htmlString
+
+}
+
+async function prepareServerSelectionList(){
+    await populateServerListings()
+    setServerListingHandlers()
+}
+
+function prepareAccountSelectionList(){
+    populateAccountListings()
+    setAccountListingHandlers()
+}

app/assets/js/scripts/uibinder.js

@@ -0,0 +1,468 @@
+/**
+ * Initialize UI functions which depend on internal modules.
+ * Loaded after core UI functions are initialized in uicore.js.
+ */
+// Requirements
+const path          = require('path')
+const { Type }      = require('helios-distribution-types')
+
+const AuthManager   = require('./assets/js/authmanager')
+const ConfigManager = require('./assets/js/configmanager')
+const { DistroAPI } = require('./assets/js/distromanager')
+
+let rscShouldLoad = false
+let fatalStartupError = false
+
+// Mapping of each view to their container IDs.
+const VIEWS = {
+    landing: '#landingContainer',
+    library: '#libraryContainer',
+    install: '#installContainer',
+    loginOptions: '#loginOptionsContainer',
+    login: '#loginContainer',
+    settings: '#settingsContainer',
+    welcome: '#welcomeContainer',
+    waiting: '#waitingContainer'
+}
+
+// The currently shown view container.
+let currentView
+
+/**
+ * Switch launcher views.
+ * 
+ * @param {string} current The ID of the current view container. 
+ * @param {*} next The ID of the next view container.
+ * @param {*} currentFadeTime Optional. The fade out time for the current view.
+ * @param {*} nextFadeTime Optional. The fade in time for the next view.
+ * @param {*} onCurrentFade Optional. Callback function to execute when the current
+ * view fades out.
+ * @param {*} onNextFade Optional. Callback function to execute when the next view
+ * fades in.
+ */
+function switchView(current, next, currentFadeTime = 500, nextFadeTime = 500, onCurrentFade = () => {}, onNextFade = () => {}){
+    currentView = next
+    $(`${current}`).fadeOut(currentFadeTime, async () => {
+        await onCurrentFade()
+        $(`${next}`).fadeIn(nextFadeTime, async () => {
+            await onNextFade()
+        })
+    })
+}
+
+/**
+ * Get the currently shown view container.
+ * 
+ * @returns {string} The currently shown view container.
+ */
+function getCurrentView(){
+    return currentView
+}
+
+async function showMainUI(data){
+
+    if(!isDev){
+        loggerAutoUpdater.info('Initializing..')
+        ipcRenderer.send('autoUpdateAction', 'initAutoUpdater', ConfigManager.getAllowPrerelease())
+    }
+
+    await prepareSettings(true)
+    updateSelectedServer(data.getServerById(ConfigManager.getSelectedServer()))
+    refreshServerStatus()
+    setTimeout(() => {
+        document.getElementById('frameBar').style.backgroundColor = 'rgba(0, 0, 0, 0.5)'
+        document.body.style.backgroundImage = `url('assets/images/backgrounds/${document.body.getAttribute('bkid')}.png')`
+        $('#main').show()
+
+        const isLoggedIn = Object.keys(ConfigManager.getAuthAccounts()).length > 0
+
+        // If this is enabled in a development environment we'll get ratelimited.
+        // The relaunch frequency is usually far too high.
+        if(!isDev && isLoggedIn){
+            validateSelectedAccount()
+        }
+
+        if(ConfigManager.isFirstLaunch()){
+            currentView = VIEWS.welcome
+            $(VIEWS.welcome).fadeIn(1000)
+        } else {
+            if(isLoggedIn){
+                currentView = VIEWS.library
+                $(VIEWS.library).fadeIn(1000)
+            } else {
+                loginOptionsCancelEnabled(false)
+                loginOptionsViewOnLoginSuccess = VIEWS.library
+                loginOptionsViewOnLoginCancel = VIEWS.loginOptions
+                currentView = VIEWS.loginOptions
+                $(VIEWS.loginOptions).fadeIn(1000)
+            }
+        }
+
+        setTimeout(() => {
+            $('#loadingContainer').fadeOut(500, () => {
+                $('#loadSpinnerImage').removeClass('rotating')
+            })
+        }, 250)
+        
+    }, 750)
+    // Disable tabbing to the news container.
+    initNews().then(() => {
+        $('#newsContainer *').attr('tabindex', '-1')
+    })
+}
+
+function showFatalStartupError(){
+    setTimeout(() => {
+        $('#loadingContainer').fadeOut(250, () => {
+            document.getElementById('overlayContainer').style.background = 'none'
+            setOverlayContent(
+                Lang.queryJS('uibinder.startup.fatalErrorTitle'),
+                Lang.queryJS('uibinder.startup.fatalErrorMessage'),
+                Lang.queryJS('uibinder.startup.closeButton')
+            )
+            setOverlayHandler(() => {
+                const window = remote.getCurrentWindow()
+                window.close()
+            })
+            toggleOverlay(true)
+        })
+    }, 750)
+}
+
+/**
+ * Common functions to perform after refreshing the distro index.
+ * 
+ * @param {Object} data The distro index object.
+ */
+function onDistroRefresh(data){
+    updateSelectedServer(data.getServerById(ConfigManager.getSelectedServer()))
+    refreshServerStatus()
+    initNews()
+    syncModConfigurations(data)
+    ensureJavaSettings(data)
+}
+
+/**
+ * Sync the mod configurations with the distro index.
+ * 
+ * @param {Object} data The distro index object.
+ */
+function syncModConfigurations(data){
+
+    const syncedCfgs = []
+
+    for(let serv of data.servers){
+
+        const id = serv.rawServer.id
+        const mdls = serv.modules
+        const cfg = ConfigManager.getModConfiguration(id)
+
+        if(cfg != null){
+
+            const modsOld = cfg.mods
+            const mods = {}
+
+            for(let mdl of mdls){
+                const type = mdl.rawModule.type
+
+                if(type === Type.ForgeMod || type === Type.LiteMod || type === Type.LiteLoader || type === Type.FabricMod){
+                    if(!mdl.getRequired().value){
+                        const mdlID = mdl.getVersionlessMavenIdentifier()
+                        if(modsOld[mdlID] == null){
+                            mods[mdlID] = scanOptionalSubModules(mdl.subModules, mdl)
+                        } else {
+                            mods[mdlID] = mergeModConfiguration(modsOld[mdlID], scanOptionalSubModules(mdl.subModules, mdl), false)
+                        }
+                    } else {
+                        if(mdl.subModules.length > 0){
+                            const mdlID = mdl.getVersionlessMavenIdentifier()
+                            const v = scanOptionalSubModules(mdl.subModules, mdl)
+                            if(typeof v === 'object'){
+                                if(modsOld[mdlID] == null){
+                                    mods[mdlID] = v
+                                } else {
+                                    mods[mdlID] = mergeModConfiguration(modsOld[mdlID], v, true)
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+
+            syncedCfgs.push({
+                id,
+                mods
+            })
+
+        } else {
+
+            const mods = {}
+
+            for(let mdl of mdls){
+                const type = mdl.rawModule.type
+                if(type === Type.ForgeMod || type === Type.LiteMod || type === Type.LiteLoader || type === Type.FabricMod){
+                    if(!mdl.getRequired().value){
+                        mods[mdl.getVersionlessMavenIdentifier()] = scanOptionalSubModules(mdl.subModules, mdl)
+                    } else {
+                        if(mdl.subModules.length > 0){
+                            const v = scanOptionalSubModules(mdl.subModules, mdl)
+                            if(typeof v === 'object'){
+                                mods[mdl.getVersionlessMavenIdentifier()] = v
+                            }
+                        }
+                    }
+                }
+            }
+
+            syncedCfgs.push({
+                id,
+                mods
+            })
+
+        }
+    }
+
+    ConfigManager.setModConfigurations(syncedCfgs)
+    ConfigManager.save()
+}
+
+/**
+ * Ensure java configurations are present for the available servers.
+ * 
+ * @param {Object} data The distro index object.
+ */
+function ensureJavaSettings(data) {
+
+    // Nothing too fancy for now.
+    for(const serv of data.servers){
+        ConfigManager.ensureJavaConfig(serv.rawServer.id, serv.effectiveJavaOptions, serv.rawServer.javaOptions?.ram)
+    }
+
+    ConfigManager.save()
+}
+
+/**
+ * Recursively scan for optional sub modules. If none are found,
+ * this function returns a boolean. If optional sub modules do exist,
+ * a recursive configuration object is returned.
+ * 
+ * @returns {boolean | Object} The resolved mod configuration.
+ */
+function scanOptionalSubModules(mdls, origin){
+    if(mdls != null){
+        const mods = {}
+
+        for(let mdl of mdls){
+            const type = mdl.rawModule.type
+            // Optional types.
+            if(type === Type.ForgeMod || type === Type.LiteMod || type === Type.LiteLoader || type === Type.FabricMod){
+                // It is optional.
+                if(!mdl.getRequired().value){
+                    mods[mdl.getVersionlessMavenIdentifier()] = scanOptionalSubModules(mdl.subModules, mdl)
+                } else {
+                    if(mdl.hasSubModules()){
+                        const v = scanOptionalSubModules(mdl.subModules, mdl)
+                        if(typeof v === 'object'){
+                            mods[mdl.getVersionlessMavenIdentifier()] = v
+                        }
+                    }
+                }
+            }
+        }
+
+        if(Object.keys(mods).length > 0){
+            const ret = {
+                mods
+            }
+            if(!origin.getRequired().value){
+                ret.value = origin.getRequired().def
+            }
+            return ret
+        }
+    }
+    return origin.getRequired().def
+}
+
+/**
+ * Recursively merge an old configuration into a new configuration.
+ * 
+ * @param {boolean | Object} o The old configuration value.
+ * @param {boolean | Object} n The new configuration value.
+ * @param {boolean} nReq If the new value is a required mod.
+ * 
+ * @returns {boolean | Object} The merged configuration.
+ */
+function mergeModConfiguration(o, n, nReq = false){
+    if(typeof o === 'boolean'){
+        if(typeof n === 'boolean') return o
+        else if(typeof n === 'object'){
+            if(!nReq){
+                n.value = o
+            }
+            return n
+        }
+    } else if(typeof o === 'object'){
+        if(typeof n === 'boolean') return typeof o.value !== 'undefined' ? o.value : true
+        else if(typeof n === 'object'){
+            if(!nReq){
+                n.value = typeof o.value !== 'undefined' ? o.value : true
+            }
+
+            const newMods = Object.keys(n.mods)
+            for(let i=0; i<newMods.length; i++){
+
+                const mod = newMods[i]
+                if(o.mods[mod] != null){
+                    n.mods[mod] = mergeModConfiguration(o.mods[mod], n.mods[mod])
+                }
+            }
+
+            return n
+        }
+    }
+    // If for some reason we haven't been able to merge,
+    // wipe the old value and use the new one. Just to be safe
+    return n
+}
+
+async function validateSelectedAccount(){
+    const selectedAcc = ConfigManager.getSelectedAccount()
+    if(selectedAcc != null){
+        const val = await AuthManager.validateSelected()
+        if(!val){
+            ConfigManager.removeAuthAccount(selectedAcc.uuid)
+            ConfigManager.save()
+            const accLen = Object.keys(ConfigManager.getAuthAccounts()).length
+            setOverlayContent(
+                Lang.queryJS('uibinder.validateAccount.failedMessageTitle'),
+                accLen > 0
+                    ? Lang.queryJS('uibinder.validateAccount.failedMessage', { 'account': selectedAcc.displayName })
+                    : Lang.queryJS('uibinder.validateAccount.failedMessageSelectAnotherAccount', { 'account': selectedAcc.displayName }),
+                Lang.queryJS('uibinder.validateAccount.loginButton'),
+                Lang.queryJS('uibinder.validateAccount.selectAnotherAccountButton')
+            )
+            setOverlayHandler(() => {
+
+                const isMicrosoft = selectedAcc.type === 'microsoft'
+
+                if(isMicrosoft) {
+                    // Empty for now
+                } else {
+                    // Mojang
+                    // For convenience, pre-populate the username of the account.
+                    document.getElementById('loginUsername').value = selectedAcc.username
+                    validateEmail(selectedAcc.username)
+                }
+                
+                loginOptionsViewOnLoginSuccess = getCurrentView()
+                loginOptionsViewOnLoginCancel = VIEWS.loginOptions
+
+                if(accLen > 0) {
+                    loginOptionsViewOnCancel = getCurrentView()
+                    loginOptionsViewCancelHandler = () => {
+                        if(isMicrosoft) {
+                            ConfigManager.addMicrosoftAuthAccount(
+                                selectedAcc.uuid,
+                                selectedAcc.accessToken,
+                                selectedAcc.username,
+                                selectedAcc.expiresAt,
+                                selectedAcc.microsoft.access_token,
+                                selectedAcc.microsoft.refresh_token,
+                                selectedAcc.microsoft.expires_at
+                            )
+                        } else {
+                            ConfigManager.addMojangAuthAccount(selectedAcc.uuid, selectedAcc.accessToken, selectedAcc.username, selectedAcc.displayName)
+                        }
+                        ConfigManager.save()
+                        validateSelectedAccount()
+                    }
+                    loginOptionsCancelEnabled(true)
+                } else {
+                    loginOptionsCancelEnabled(false)
+                }
+                toggleOverlay(false)
+                switchView(getCurrentView(), VIEWS.loginOptions)
+            })
+            setDismissHandler(() => {
+                if(accLen > 1){
+                    prepareAccountSelectionList()
+                    $('#overlayContent').fadeOut(250, () => {
+                        bindOverlayKeys(true, 'accountSelectContent', true)
+                        $('#accountSelectContent').fadeIn(250)
+                    })
+                } else {
+                    const accountsObj = ConfigManager.getAuthAccounts()
+                    const accounts = Array.from(Object.keys(accountsObj), v => accountsObj[v])
+                    // This function validates the account switch.
+                    setSelectedAccount(accounts[0].uuid)
+                    toggleOverlay(false)
+                }
+            })
+            toggleOverlay(true, accLen > 0)
+        } else {
+            return true
+        }
+    } else {
+        return true
+    }
+}
+
+/**
+ * Temporary function to update the selected account along
+ * with the relevent UI elements.
+ * 
+ * @param {string} uuid The UUID of the account.
+ */
+function setSelectedAccount(uuid){
+    const authAcc = ConfigManager.setSelectedAccount(uuid)
+    ConfigManager.save()
+    updateSelectedAccount(authAcc)
+    validateSelectedAccount()
+}
+
+// Synchronous Listener
+document.addEventListener('readystatechange', async () => {
+
+    if (document.readyState === 'interactive' || document.readyState === 'complete'){
+        if(rscShouldLoad){
+            rscShouldLoad = false
+            if(!fatalStartupError){
+                const data = await DistroAPI.getDistribution()
+                await showMainUI(data)
+            } else {
+                showFatalStartupError()
+            }
+        } 
+    }
+
+}, false)
+
+// Actions that must be performed after the distribution index is downloaded.
+ipcRenderer.on('distributionIndexDone', async (event, res) => {
+    if(res) {
+        const data = await DistroAPI.getDistribution()
+        syncModConfigurations(data)
+        ensureJavaSettings(data)
+        if(document.readyState === 'interactive' || document.readyState === 'complete'){
+            await showMainUI(data)
+        } else {
+            rscShouldLoad = true
+        }
+    } else {
+        fatalStartupError = true
+        if(document.readyState === 'interactive' || document.readyState === 'complete'){
+            showFatalStartupError()
+        } else {
+            rscShouldLoad = true
+        }
+    }
+})
+
+// Util for development
+async function devModeToggle() {
+    DistroAPI.toggleDevMode(true)
+    const data = await DistroAPI.refreshDistributionOrFallback()
+    ensureJavaSettings(data)
+    updateSelectedServer(data.servers[0])
+    syncModConfigurations(data)
+}

app/assets/js/scripts/uicore.js

@@ -0,0 +1,213 @@
+/**
+ * Core UI functions are initialized in this file. This prevents
+ * unexpected errors from breaking the core features. Specifically,
+ * actions in this file should not require the usage of any internal
+ * modules, excluding dependencies.
+ */
+// Requirements
+const $                              = require('jquery')
+const {ipcRenderer, shell, webFrame} = require('electron')
+const remote                         = require('@electron/remote')
+const isDev                          = require('./assets/js/isdev')
+const { LoggerUtil }                 = require('helios-core')
+const Lang                           = require('./assets/js/langloader')
+
+const loggerUICore             = LoggerUtil.getLogger('UICore')
+const loggerAutoUpdater        = LoggerUtil.getLogger('AutoUpdater')
+
+// Log deprecation and process warnings.
+process.traceProcessWarnings = true
+process.traceDeprecation = true
+
+// Disable eval function.
+window.eval = global.eval = function () {
+    throw new Error('Sorry, this app does not support window.eval().')
+}
+
+// Display warning when devtools window is opened.
+remote.getCurrentWebContents().on('devtools-opened', () => {
+    console.log('%cThe console is dark and full of terrors.', 'color: white; -webkit-text-stroke: 4px #a02d2a; font-size: 60px; font-weight: bold')
+    console.log('%cIf you\'ve been told to paste something here, you\'re being scammed.', 'font-size: 16px')
+    console.log('%cUnless you know exactly what you\'re doing, close this window.', 'font-size: 16px')
+})
+
+// Disable zoom, needed for darwin.
+webFrame.setZoomLevel(0)
+webFrame.setVisualZoomLevelLimits(1, 1)
+
+// Initialize auto updates in production environments.
+let updateCheckListener
+if(!isDev){
+    ipcRenderer.on('autoUpdateNotification', (event, arg, info) => {
+        switch(arg){
+            case 'checking-for-update':
+                loggerAutoUpdater.info('Checking for update..')
+                settingsUpdateButtonStatus(Lang.queryJS('uicore.autoUpdate.checkingForUpdateButton'), true)
+                break
+            case 'update-available':
+                loggerAutoUpdater.info('New update available', info.version)
+                
+                if(process.platform === 'darwin'){
+                    info.darwindownload = `https://github.com/peunsu/MRSLauncher/releases/download/v${info.version}/MRS-Launcher-setup-${info.version}${process.arch === 'arm64' ? '-arm64' : '-x64'}.dmg`
+                    showUpdateUI(info)
+                }
+                
+                populateSettingsUpdateInformation(info)
+                break
+            case 'update-downloaded':
+                loggerAutoUpdater.info('Update ' + info.version + ' ready to be installed.')
+                settingsUpdateButtonStatus(Lang.queryJS('uicore.autoUpdate.installNowButton'), false, () => {
+                    if(!isDev){
+                        ipcRenderer.send('autoUpdateAction', 'installUpdateNow')
+                    }
+                })
+                showUpdateUI(info)
+                break
+            case 'update-not-available':
+                loggerAutoUpdater.info('No new update found.')
+                settingsUpdateButtonStatus(Lang.queryJS('uicore.autoUpdate.checkForUpdatesButton'))
+                break
+            case 'ready':
+                updateCheckListener = setInterval(() => {
+                    ipcRenderer.send('autoUpdateAction', 'checkForUpdate')
+                }, 1800000)
+                ipcRenderer.send('autoUpdateAction', 'checkForUpdate')
+                break
+            case 'realerror':
+                if(info != null && info.code != null){
+                    if(info.code === 'ERR_UPDATER_INVALID_RELEASE_FEED'){
+                        loggerAutoUpdater.info('No suitable releases found.')
+                    } else if(info.code === 'ERR_XML_MISSED_ELEMENT'){
+                        loggerAutoUpdater.info('No releases found.')
+                    } else {
+                        loggerAutoUpdater.error('Error during update check..', info)
+                        loggerAutoUpdater.debug('Error Code:', info.code)
+                    }
+                }
+                break
+            default:
+                loggerAutoUpdater.info('Unknown argument', arg)
+                break
+        }
+    })
+}
+
+/**
+ * Send a notification to the main process changing the value of
+ * allowPrerelease. If we are running a prerelease version, then
+ * this will always be set to true, regardless of the current value
+ * of val.
+ * 
+ * @param {boolean} val The new allow prerelease value.
+ */
+function changeAllowPrerelease(val){
+    ipcRenderer.send('autoUpdateAction', 'allowPrereleaseChange', val)
+}
+
+function showUpdateUI(info){
+    //TODO Make this message a bit more informative `${info.version}`
+    document.getElementById('image_seal_container').setAttribute('update', true)
+    document.getElementById('image_seal_container').onclick = () => {
+        /*setOverlayContent('Update Available', 'A new update for the launcher is available. Would you like to install now?', 'Install', 'Later')
+        setOverlayHandler(() => {
+            if(!isDev){
+                ipcRenderer.send('autoUpdateAction', 'installUpdateNow')
+            } else {
+                console.error('Cannot install updates in development environment.')
+                toggleOverlay(false)
+            }
+        })
+        setDismissHandler(() => {
+            toggleOverlay(false)
+        })
+        toggleOverlay(true, true)*/
+        switchView(getCurrentView(), VIEWS.settings, 500, 500, () => {
+            settingsNavItemListener(document.getElementById('settingsNavUpdate'), false)
+        })
+    }
+}
+
+/* jQuery Example
+$(function(){
+    loggerUICore.info('UICore Initialized');
+})*/
+
+document.addEventListener('readystatechange', function () {
+    if (document.readyState === 'interactive'){
+        loggerUICore.info('UICore Initializing..')
+
+        // Bind close button.
+        Array.from(document.getElementsByClassName('fCb')).map((val) => {
+            val.addEventListener('click', e => {
+                const window = remote.getCurrentWindow()
+                window.close()
+            })
+        })
+
+        // Bind restore down button.
+        Array.from(document.getElementsByClassName('fRb')).map((val) => {
+            val.addEventListener('click', e => {
+                const window = remote.getCurrentWindow()
+                if(window.isMaximized()){
+                    window.unmaximize()
+                } else {
+                    window.maximize()
+                }
+                document.activeElement.blur()
+            })
+        })
+
+        // Bind minimize button.
+        Array.from(document.getElementsByClassName('fMb')).map((val) => {
+            val.addEventListener('click', e => {
+                const window = remote.getCurrentWindow()
+                window.minimize()
+                document.activeElement.blur()
+            })
+        })
+
+        // Remove focus from social media buttons once they're clicked.
+        Array.from(document.getElementsByClassName('mediaURL')).map(val => {
+            val.addEventListener('click', e => {
+                document.activeElement.blur()
+            })
+        })
+
+    } else if(document.readyState === 'complete'){
+
+        //266.01
+        //170.8
+        //53.21
+        // Bind progress bar length to length of bot wrapper
+        //const targetWidth = document.getElementById("launch_content").getBoundingClientRect().width
+        //const targetWidth2 = document.getElementById("server_selection").getBoundingClientRect().width
+        //const targetWidth3 = document.getElementById("launch_button").getBoundingClientRect().width
+
+        document.getElementById('launch_details').style.maxWidth = 266.01
+        document.getElementById('launch_progress').style.width = 170.8
+        document.getElementById('launch_details_right').style.maxWidth = 170.8
+        document.getElementById('launch_progress_label').style.width = 53.21
+        
+    }
+
+}, false)
+
+/**
+ * Open web links in the user's default browser.
+ */
+$(document).on('click', 'a[href^="http"]', function(event) {
+    event.preventDefault()
+    shell.openExternal(this.href)
+})
+
+/**
+ * Opens DevTools window if you hold (ctrl + shift + i).
+ * This will crash the program if you are using multiple
+ * DevTools, for example the chrome debugger in VS Code. 
+ */
+document.addEventListener('keydown', function (e) {
+    if((e.key === 'I' || e.key === 'i') && e.ctrlKey && e.shiftKey){
+        let window = remote.getCurrentWindow()
+        window.toggleDevTools()
+    }
+})

app/assets/js/scripts/welcome.js

@@ -0,0 +1,9 @@
+/**
+ * Script for welcome.ejs
+ */
+document.getElementById('welcomeButton').addEventListener('click', e => {
+    loginOptionsCancelEnabled(false) // False by default, be explicit.
+    loginOptionsViewOnLoginSuccess = VIEWS.library
+    loginOptionsViewOnLoginCancel = VIEWS.loginOptions
+    switchView(VIEWS.welcome, VIEWS.loginOptions)
+})

app/assets/js/serverruntime.js

@@ -0,0 +1,211 @@
+const childProcess = require('child_process')
+const fs = require('fs-extra')
+const path = require('path')
+
+const ConfigManager = require('./configmanager')
+const ProfileAssetManager = require('./profileassetmanager')
+
+const runtimes = new Map()
+
+function getRuntime(profileId){
+    if(!runtimes.has(profileId)){
+        runtimes.set(profileId, {
+            serverProcess: null,
+            tunnelProcess: null,
+            logs: [],
+            status: 'stopped',
+            publishedAddress: ConfigManager.getPublishedLibraryServerAddress(profileId)
+        })
+    }
+
+    return runtimes.get(profileId)
+}
+
+function appendLog(runtime, line){
+    runtime.logs.push(line)
+    if(runtime.logs.length > 200){
+        runtime.logs.shift()
+    }
+}
+
+function interpolateCommand(template, variables){
+    return Object.entries(variables).reduce((command, [key, value]) => {
+        return command.replaceAll(`\${${key}}`, String(value))
+    }, template)
+}
+
+function extractPublishedAddress(line, profile){
+    if(profile.tunnelAddressRegex){
+        const customRegex = new RegExp(profile.tunnelAddressRegex)
+        const customMatch = line.match(customRegex)
+        if(customMatch){
+            return customMatch[1] ?? customMatch[0]
+        }
+    }
+
+    const genericMatch = line.match(/([a-zA-Z0-9.-]+\.[a-zA-Z]{2,}:\d+|[a-zA-Z0-9.-]+:\d{2,5})/)
+    return genericMatch ? genericMatch[1] : null
+}
+
+async function resolveServerLaunchCommand(profile, serverDirectory){
+    if(profile.serverLaunchCommand){
+        return profile.serverLaunchCommand
+    }
+
+    const startScript = process.platform === 'win32' ? 'start.bat' : 'start.sh'
+    const startScriptPath = path.join(serverDirectory, startScript)
+    if(await fs.pathExists(startScriptPath)){
+        return process.platform === 'win32' ? startScript : `./${startScript}`
+    }
+
+    const jarPath = path.join(serverDirectory, 'server.jar')
+    if(await fs.pathExists(jarPath)){
+        return 'java -jar server.jar nogui'
+    }
+
+    throw new Error('서버 시작 명령을 결정할 수 없습니다. serverLaunchCommand 또는 server.jar/start 스크립트를 준비하세요.')
+}
+
+function resolveWorkingDirectory(profile, serverDirectory){
+    if(profile.serverWorkingDirectory){
+        return path.join(serverDirectory, profile.serverWorkingDirectory)
+    }
+    return serverDirectory
+}
+
+async function startTunnelProcess(profile, runtime, serverDirectory){
+    if(!profile.tunnelCommand){
+        return null
+    }
+
+    const command = interpolateCommand(profile.tunnelCommand, {
+        port: profile.serverPort ?? 25565,
+        serverDir: serverDirectory
+    })
+
+    const tunnelProcess = childProcess.spawn(command, {
+        cwd: serverDirectory,
+        shell: true,
+        detached: false
+    })
+
+    runtime.tunnelProcess = tunnelProcess
+
+    tunnelProcess.stdout?.on('data', (chunk) => {
+        const text = chunk.toString()
+        text.split(/\r?\n/).filter(Boolean).forEach((line) => {
+            appendLog(runtime, `[tunnel] ${line}`)
+            const address = extractPublishedAddress(line, profile)
+            if(address){
+                runtime.publishedAddress = address
+                ConfigManager.setPublishedLibraryServerAddress(profile.id, address)
+                ConfigManager.save()
+            }
+        })
+    })
+
+    tunnelProcess.stderr?.on('data', (chunk) => {
+        chunk.toString().split(/\r?\n/).filter(Boolean).forEach((line) => {
+            appendLog(runtime, `[tunnel:err] ${line}`)
+        })
+    })
+
+    tunnelProcess.on('close', () => {
+        runtime.tunnelProcess = null
+    })
+
+    return tunnelProcess
+}
+
+exports.startHostedProfile = async function(profile){
+    const runtime = getRuntime(profile.id)
+    if(runtime.serverProcess != null){
+        return runtime
+    }
+
+    const serverDirectory = await ProfileAssetManager.ensureServerBundleInstalled(profile)
+    const workingDirectory = resolveWorkingDirectory(profile, serverDirectory)
+    const command = await resolveServerLaunchCommand(profile, workingDirectory)
+
+    runtime.status = 'starting'
+    runtime.publishedAddress = null
+    ConfigManager.setPublishedLibraryServerAddress(profile.id, null)
+    ConfigManager.save()
+    appendLog(runtime, `[launcher] starting server: ${command}`)
+
+    const serverProcess = childProcess.spawn(command, {
+        cwd: workingDirectory,
+        shell: true,
+        detached: false
+    })
+
+    runtime.serverProcess = serverProcess
+
+    serverProcess.stdout?.on('data', (chunk) => {
+        chunk.toString().split(/\r?\n/).filter(Boolean).forEach((line) => {
+            appendLog(runtime, `[server] ${line}`)
+            if(runtime.status !== 'running'){
+                runtime.status = 'running'
+            }
+        })
+    })
+
+    serverProcess.stderr?.on('data', (chunk) => {
+        chunk.toString().split(/\r?\n/).filter(Boolean).forEach((line) => {
+            appendLog(runtime, `[server:err] ${line}`)
+        })
+    })
+
+    serverProcess.on('close', () => {
+        runtime.serverProcess = null
+        runtime.status = 'stopped'
+        runtime.publishedAddress = null
+        ConfigManager.setPublishedLibraryServerAddress(profile.id, null)
+        ConfigManager.save()
+    })
+
+    if(profile.tunnelCommand){
+        await startTunnelProcess(profile, runtime, workingDirectory)
+    }
+
+    return runtime
+}
+
+exports.stopHostedProfile = function(profileId){
+    const runtime = getRuntime(profileId)
+
+    if(runtime.tunnelProcess != null){
+        runtime.tunnelProcess.kill()
+        runtime.tunnelProcess = null
+    }
+
+    if(runtime.serverProcess != null){
+        runtime.serverProcess.kill()
+        runtime.serverProcess = null
+    }
+
+    runtime.status = 'stopped'
+    runtime.publishedAddress = null
+    ConfigManager.setPublishedLibraryServerAddress(profileId, null)
+    ConfigManager.save()
+}
+
+exports.getHostedProfileState = function(profileId){
+    const runtime = getRuntime(profileId)
+    return {
+        status: runtime.status,
+        running: runtime.serverProcess != null,
+        tunneling: runtime.tunnelProcess != null,
+        publishedAddress: runtime.publishedAddress ?? ConfigManager.getPublishedLibraryServerAddress(profileId),
+        logs: [...runtime.logs]
+    }
+}
+
+exports.hasRunningProfiles = function(){
+    for(const runtime of runtimes.values()){
+        if(runtime.serverProcess != null || runtime.tunnelProcess != null){
+            return true
+        }
+    }
+    return false
+}

app/assets/js/serverstatus.js

@@ -0,0 +1,65 @@
+const net = require('net')
+
+/**
+ * Retrieves the status of a minecraft server.
+ * 
+ * @param {string} address The server address.
+ * @param {number} port Optional. The port of the server. Defaults to 25565.
+ * @returns {Promise.<Object>} A promise which resolves to an object containing
+ * status information.
+ */
+exports.getStatus = function(address, port = 25565){
+
+    if(port == null || port == ''){
+        port = 25565
+    }
+    if(typeof port === 'string'){
+        port = parseInt(port)
+    }
+
+    return new Promise((resolve, reject) => {
+        const socket = net.connect(port, address, () => {
+            let buff = Buffer.from([0xFE, 0x01])
+            socket.write(buff)
+        })
+
+        socket.setTimeout(2500, () => {
+            socket.end()
+            reject({
+                code: 'ETIMEDOUT',
+                errno: 'ETIMEDOUT',
+                address,
+                port
+            })
+        })
+
+        socket.on('data', (data) => {
+            if(data != null && data != ''){
+                let server_info = data.toString().split('\x00\x00\x00')
+                const NUM_FIELDS = 6
+                if(server_info != null && server_info.length >= NUM_FIELDS){
+                    resolve({
+                        online: true,
+                        version: server_info[2].replace(/\u0000/g, ''),
+                        motd: server_info[3].replace(/\u0000/g, ''),
+                        onlinePlayers: server_info[4].replace(/\u0000/g, ''),
+                        maxPlayers: server_info[5].replace(/\u0000/g,'')
+                    })
+                } else {
+                    resolve({
+                        online: false
+                    })
+                }
+            }
+            socket.end()
+        })
+
+        socket.on('error', (err) => {
+            socket.destroy()
+            reject(err)
+            // ENOTFOUND = Unable to resolve.
+            // ECONNREFUSED = Unable to connect to port.
+        })
+    })
+
+}

app/assets/lang/_custom.toml

@@ -0,0 +1,42 @@
+# Custom Language File for Launcher Customizer
+
+[ejs.app]
+title = "MRS Launcher"
+
+[ejs.landing]
+mediaHomeURL = "https://mysticred.space"
+mediaLinkURL = "#"
+mediaMapURL = "https://map.mysticred.space"
+mediaGitHubURL = "https://github.com/peunsu/MRSLauncher"
+mediaXURL = "#"
+mediaInstagramURL = "#"
+mediaYouTubeURL = "#"
+mediaDiscordURL = "https://discord.gg/Z8j6ahF4MJ"
+libraryButton = "라이브러리"
+installButton = "설치"
+
+[ejs.settings]
+sourceGithubLink = "https://github.com/peunsu/MRSLauncher"
+supportLink = "https://github.com/peunsu/MRSLauncher/issues"
+
+[ejs.library]
+eyebrow = "Library"
+title = "내 라이브러리"
+subtitle = "설치한 프로필을 선택하고 바로 실행하거나, 서버 주소를 입력해 자동 접속을 준비할 수 있습니다."
+settingsButton = "설정"
+installPageButton = "설치 페이지"
+launchPageButton = "실행 화면"
+emptyTitle = "설치된 프로필이 없습니다."
+emptyDescription = "설치 페이지에서 네가 배포한 모드팩이나 서버 클라이언트를 먼저 추가하세요."
+
+[ejs.install]
+eyebrow = "Install"
+title = "설치 페이지"
+subtitle = "관리자가 미리 등록한 프로필을 둘러보고, 설명과 상세 내용을 확인한 뒤 내 라이브러리에 추가합니다."
+libraryPageButton = "라이브러리"
+notice = "설치 페이지는 읽기 전용 카탈로그입니다. 프로필 제목, 요약, 상세 설명은 관리자가 미리 등록하며, 클라이언트는 라이브러리에 추가만 할 수 있습니다."
+
+[ejs.welcome]
+welcomeHeader = "Mystic Red Space"
+welcomeDescription = "2017년, 작은 모드팩 서버로 시작한 Mystic Red Space는 오랜 시간동안 모드팩 유저의 사랑을 받으면서 현재까지 수십 개 이상의 모드팩 서버를 제공하였습니다.  이제 MRS는 단순한 마인크래프트 모드팩 서버를 넘어서, 더 많은 사람들이 마인크래프트 모드 정보를 쉽게 접하고 모드팩에 대한 관심을 키울 수 있는 모드 커뮤니티로 한 걸음 나아가고 있습니다."
+welcomeDescCTA = "모드팩을 사랑하는 당신을 위한 최고의 선물이 되겠습니다."

app/assets/lang/en_US.toml

@@ -0,0 +1,345 @@
+[ejs.landing]
+updateAvailableTooltip = "Update Available"
+usernamePlaceholder = "Username"
+usernameEditButton = "Edit"
+settingsTooltip = "Settings"
+serverStatus = "SERVER"
+serverStatusPlaceholder = "OFFLINE"
+mojangStatus = "MOJANG STATUS"
+mojangStatusTooltipTitle = "Services"
+mojangStatusNETitle = "Non Essential"
+newsButton = "NEWS"
+launchButton = "PLAY"
+launchButtonPlaceholder = "• No Server Selected"
+launchDetails = "Please wait.."
+newsNavigationStatus = "{currentPage} of {totalPages}"
+newsErrorLoadSpan = "Checking for News.."
+newsErrorFailedSpan = "Failed to Load News"
+newsErrorRetryButton = "Try Again"
+newsErrorNoneSpan = "No News"
+
+[ejs.login]
+loginCancelText = "Cancel"
+loginSubheader = "MINECRAFT LOGIN"
+loginEmailError = "* Invalid Value"
+loginEmailPlaceholder = "EMAIL OR USERNAME"
+loginPasswordError = "* Required"
+loginPasswordPlaceholder = "PASSWORD"
+loginForgotPasswordLink = "https://minecraft.net/password/forgot/"
+loginForgotPasswordText = "forgot password?"
+loginRememberMeText = "remember me?"
+loginButtonText = "LOGIN"
+loginNeedAccountLink = "https://minecraft.net/store/minecraft-java-edition/"
+loginNeedAccountText = "Need an Account?"
+loginPasswordDisclaimer1 = "Your password is sent directly to mojang and never stored."
+loginPasswordDisclaimer2 = "{appName} is not affiliated with Mojang AB."
+
+[ejs.loginOptions]
+loginOptionsTitle = "Login Options"
+loginWithMicrosoft = "Login with Microsoft"
+loginWithMojang = "Login with Mojang"
+cancelButton = "Cancel"
+
+[ejs.overlay]
+serverSelectHeader = "Available Servers"
+serverSelectConfirm = "Select"
+serverSelectCancel = "Cancel"
+accountSelectHeader = "Select an Account"
+accountSelectConfirm = "Select"
+accountSelectCancel = "Cancel"
+
+[ejs.settings]
+navHeaderText = "Settings"
+navAccount = "Account"
+navMinecraft = "Minecraft"
+navMods = "Mods"
+navJava = "Java"
+navLauncher = "Launcher"
+navAbout = "About"
+navUpdates = "Updates"
+navDone = "Done"
+tabAccountHeaderText = "Account Settings"
+tabAccountHeaderDesc = "Add new accounts or manage existing ones."
+microsoftAccount = "Microsoft"
+addMicrosoftAccount = "+ Add Microsoft Account"
+mojangAccount = "Mojang"
+addMojangAccount = "+ Add Mojang Account"
+minecraftTabHeaderText = "Minecraft Settings"
+minecraftTabHeaderDesc = "Options related to game launch."
+gameResolutionTitle = "Game Resolution"
+launchFullscreenTitle = "Launch in fullscreen."
+autoConnectTitle = "Automatically connect to the server on launch."
+launchDetachedTitle = "Launch game process detached from launcher."
+launchDetachedDesc = "If the game is not detached, closing the launcher will also close the game."
+tabModsHeaderText = "Mod Settings"
+tabModsHeaderDesc = "Enable or disable mods."
+switchServerButton = "Switch"
+requiredMods = "Required Mods"
+optionalMods = "Optional Mods"
+dropinMods = "Drop-in Mods"
+addMods = "Add Mods"
+dropinRefreshNote = "(F5 to Refresh)"
+shaderpacks = "Shaderpacks"
+shaderpackDesc = "Enable or disable shaders. Please note, shaders will only run smoothly on powerful setups. You may add custom packs here."
+selectShaderpack = "Select Shaderpack"
+tabJavaHeaderText = "Java Settings"
+tabJavaHeaderDesc = "Manage the Java configuration (advanced)."
+memoryTitle = "Memory"
+maxRAM = "Maximum RAM"
+minRAM = "Minimum RAM"
+memoryDesc = "The recommended minimum RAM is 3 gigabytes. Setting the minimum and maximum values to the same value may reduce lag."
+memoryTotalTitle = "Total"
+memoryAvailableTitle = "Available"
+javaExecutableTitle = "Java Executable"
+javaExecSelDialogTitle = "Select Java Executable"
+javaExecSelButtonText = "Choose File"
+javaExecDesc = "The Java executable is validated before game launch."
+javaPathDesc = "The path should end with <strong>{pathSuffix}</strong>."
+jvmOptsTitle = "Additional JVM Options"
+jvmOptsDesc = "Options to be provided to the JVM at runtime. <em>-Xms</em> and <em>-Xmx</em> should not be included."
+launcherTabHeaderText = "Launcher Settings"
+launcherTabHeaderDesc = "Options related to the launcher itself."
+allowPrereleaseTitle = "Allow Pre-Release Updates."
+allowPrereleaseDesc = "Pre-Releases include new features which may have not been fully tested or integrated.<br>This will always be true if you are using a pre-release version."
+dataDirectoryTitle = "Data Directory"
+selectDataDirectory = "Select Data Directory"
+chooseFolder = "Choose Folder"
+dataDirectoryDesc = "All game files and local Java installations will be stored in the data directory.<br>Screenshots and world saves are stored in the instance folder for the corresponding server configuration."
+aboutTabHeaderText = "About"
+aboutTabHeaderDesc = "View information and release notes for the current version."
+aboutTitle = "{appName}"
+stableRelease = "Stable Release"
+versionText = "Version "
+sourceGithub = "GitHub"
+sourceOriginalGithub = "Original GitHub"
+support = "Support"
+devToolsConsole = "DevTools Console"
+releaseNotes = "Release Notes"
+changelog = "Changelog"
+noReleaseNotes = "No Release Notes"
+viewReleaseNotes = "View Release Notes on GitHub"
+launcherUpdatesHeaderText = "Launcher Updates"
+launcherUpdatesHeaderDesc = "Download, install, and review updates for the launcher."
+checkForUpdates = "Check for Updates"
+whatsNew = "What's New"
+updateReleaseNotes = "Update Release Notes"
+
+[ejs.waiting]
+waitingText = "Waiting for Microsoft.."
+
+[ejs.welcome]
+continueButton = "CONTINUE"
+
+
+[js.discord]
+waiting = "Waiting for Client.."
+state = "Server: {shortId}"
+
+[js.index]
+microsoftLoginTitle = "Microsoft Login"
+microsoftLogoutTitle = "Microsoft Logout"
+
+[js.login]
+login = "LOGIN"
+loggingIn = "LOGGING IN"
+success = "SUCCESS"
+tryAgain = "Try Again"
+
+[js.login.error]
+invalidValue = "* Invalid Value"
+requiredValue = "* Required"
+
+[js.login.error.unknown]
+title = "Unknown Error During Login"
+desc = "An unknown error has occurred. Please see the console for details."
+
+[js.landing.launch]
+pleaseWait = "Please wait.."
+failureTitle = "Error During Launch"
+failureText = "See console (CTRL + Shift + i) for more details."
+okay = "Okay"
+
+[js.landing.selectedAccount]
+noAccountSelected = "No Account Selected"
+
+[js.landing.selectedServer]
+noSelection = "No Server Selected"
+loading = "Loading.."
+
+[js.landing.serverStatus]
+server = "SERVER"
+offline = "OFFLINE"
+players = "PLAYERS"
+
+[js.landing.systemScan]
+checking = "Checking system info.."
+noCompatibleJava = "No Compatible<br>Java Installation Found"
+installJavaMessage = "In order to launch Minecraft, you need a 64-bit installation of Java {major}. Would you like us to install a copy?"
+installJava = "Install Java"
+installJavaManually = "Install Manually"
+javaDownloadPrepare = "Preparing Java Download.."
+javaDownloadFailureTitle = "Error During Java Download"
+javaDownloadFailureText = "See console (CTRL + Shift + i) for more details."
+javaRequired = "Java is Required<br>to Launch"
+javaRequiredMessage = 'A valid x64 installation of Java {major} is required to launch.<br><br>Please refer to our <a href="https://github.com/peunsu/MRSLauncher/wiki/Java-%EA%B4%80%EB%A6%AC#java-%EC%88%98%EB%8F%99-%EC%84%A4%EC%B9%98">Java Management Guide</a> for instructions on how to manually install Java.'
+javaRequiredDismiss = "I Understand"
+javaRequiredCancel = "Go Back"
+
+[js.landing.downloadJava]
+findJdkFailure = "Failed to find OpenJDK distribution."
+javaDownloadCorruptedError = "Downloaded JDK has a bad hash, the file may be corrupted."
+extractingJava = "Extracting Java"
+javaInstalled = "Java Installed!"
+
+[js.landing.dlAsync]
+loadingServerInfo = "Loading server information.."
+fatalError = "Fatal Error"
+unableToLoadDistributionIndex = "Could not load a copy of the distribution index. See the console (CTRL + Shift + i) for more details."
+pleaseWait = "Please wait.."
+errorDuringLaunchTitle = "Error During Launch"
+seeConsoleForDetails = "See console (CTRL + Shift + i) for more details."
+validatingFileIntegrity = "Validating file integrity.."
+errorDuringFileVerificationTitle = "Error During File Verification"
+downloadingFiles = "Downloading files.."
+errorDuringFileDownloadTitle = "Error During File Download"
+preparingToLaunch = "Preparing to launch.."
+launchingGame = "Launching game.."
+launchWrapperNotDownloaded = "The main file, LaunchWrapper, failed to download properly. As a result, the game cannot launch.<br><br>To fix this issue, temporarily turn off your antivirus software and launch the game again.<br><br>If you have time, please <a href=\"https://github.com/peunsu/MRSLauncher/issues\">submit an issue</a> and let us know what antivirus software you use. We'll contact them and try to straighten things out."
+doneEnjoyServer = "Done. Enjoy the server!"
+checkConsoleForDetails = "Please check the console (CTRL + Shift + i) for more details."
+
+[js.landing.news]
+checking = "Checking for News"
+
+[js.landing.discord]
+loading = "Loading game.."
+joining = "Sailing to Westeros!"
+joined = "Exploring the Realm!"
+
+[js.overlay]
+dismiss = "Dismiss"
+
+[js.settings.fileSelectors]
+executables = "Executables"
+allFiles = "All Files"
+
+[js.settings.mstfLogin]
+errorTitle = "Something Went Wrong"
+errorMessage = "Microsoft authentication failed. Please try again."
+okButton = "OK"
+
+[js.settings.mstfLogout]
+errorTitle = "Something Went Wrong"
+errorMessage = "Microsoft logout failed. Please try again."
+okButton = "OK"
+
+[js.settings.authAccountSelect]
+selectButton = "Select Account"
+selectedButton = "Selected Account &#10004;"
+
+[js.settings.authAccountLogout]
+lastAccountWarningTitle = "Warning<br>This is Your Last Account"
+lastAccountWarningMessage = "In order to use the launcher you must be logged into at least one account. You will need to login again after.<br><br>Are you sure you want to log out?"
+confirmButton = "I'm Sure"
+cancelButton = "Cancel"
+
+[js.settings.authAccountPopulate]
+username = "Username"
+uuid = "UUID"
+selectAccount = "Select Account"
+selectedAccount = "Selected Account ✓"
+logout = "Log Out"
+
+[js.settings.dropinMods]
+removeButton = "Remove"
+deleteFailedTitle = "Failed to Delete<br>Drop-in Mod {fullName}"
+deleteFailedMessage = "Make sure the file is not in use and try again."
+failedToggleTitle = "Failed to Toggle<br>One or More Drop-in Mods"
+okButton = "Okay"
+
+[js.settings.serverListing]
+mainServer = "Main Server"
+
+[js.settings.java]
+selectedJava = "Selected: Java {version} ({vendor})"
+invalidSelection = "Invalid Selection"
+requiresJava = "Requires Java {major} x64."
+availableOptions = "Available Options for Java {major} (HotSpot VM)"
+
+[js.settings.about]
+preReleaseTitle = "Pre-release"
+stableReleaseTitle = "Stable Release"
+releaseNotesFailed = "Failed to load release notes."
+
+[js.settings.updates]
+newReleaseTitle = "New Release Available"
+newPreReleaseTitle = "New Pre-release Available"
+downloadingButton = "Downloading.."
+downloadButton = 'Download from GitHub<span style="font-size: 10px;color: gray;text-shadow: none !important;">Close the launcher and run the dmg to update.</span>'
+latestVersionTitle = "You Are Running the Latest Version"
+checkForUpdatesButton = "Check for Updates"
+checkingForUpdatesButton = "Checking for Updates.."
+
+[js.settings.msftLogin]
+errorTitle = "Microsoft Login Failed"
+errorMessage = "We were unable to authenticate your Microsoft account. Please try again."
+okButton = "OK"
+
+[js.uibinder.startup]
+fatalErrorTitle = "Fatal Error: Unable to Load Distribution Index"
+fatalErrorMessage = "A connection could not be established to our servers to download the distribution index. No local copies were available to load. <br><br>The distribution index is an essential file which provides the latest server information. The launcher is unable to start without it. Ensure you are connected to the internet and relaunch the application."
+closeButton = "Close"
+
+[js.uibinder.validateAccount]
+failedMessageTitle = "Failed to Refresh Login"
+failedMessage = "We were unable to refresh the login for <strong>{account}</strong>. Please select another account or login again."
+failedMessageSelectAnotherAccount = "We were unable to refresh the login for <strong>{account}</strong>. Please login again."
+loginButton = "Login"
+selectAnotherAccountButton = "Select Another Account"
+
+[js.uicore.autoUpdate]
+checkingForUpdateButton = "Checking for Updates..."
+installNowButton = "Install Now"
+checkForUpdatesButton = "Check for Updates"
+
+[js.auth.microsoft.error]
+noProfileTitle = "Error During Login:<br>Profile Not Set Up"
+noProfileDesc = "Your Microsoft account does not yet have a Minecraft profile set up. If you have recently purchased the game or redeemed it through Xbox Game Pass, you have to set up your profile on <a href=\"https://minecraft.net/\">Minecraft.net</a>.<br><br>If you have not yet purchased the game, you can also do that on <a href=\"https://minecraft.net/\">Minecraft.net</a>."
+noXboxAccountTitle = "Error During Login:<br>No Xbox Account"
+noXboxAccountDesc = "Your Microsoft account has no Xbox account associated with it."
+xblBannedTitle = "Error During Login:<br>Xbox Live Unavailable"
+xblBannedDesc = "Your Microsoft account is from a country where Xbox Live is not available or banned."
+under18Title = "Error During Login:<br>Parental Approval Required"
+under18Desc = "Accounts for users under the age of 18 must be added to a Family by an adult."
+unknownTitle = "Unknown Error During Login"
+unknownDesc = "An unknown error has occurred. Please see the console for details."
+
+[js.auth.mojang.error]
+methodNotAllowedTitle = "Internal Error:<br>Method Not Allowed"
+methodNotAllowedDesc = "Method not allowed. Please report this error."
+notFoundTitle = "Internal Error:<br>Not Found"
+notFoundDesc = "The authentication endpoint was not found. Please report this issue."
+accountMigratedTitle = "Error During Login:<br>Account Migrated"
+accountMigratedDesc = "You've attempted to login with a migrated account. Try again using the account email as the username."
+invalidCredentialsTitle = "Error During Login:<br>Invalid Credentials"
+invalidCredentialsDesc = "The email or password you've entered is incorrect. Please try again."
+tooManyAttemptsTitle = "Error During Login:<br>Too Many Attempts"
+tooManyAttemptsDesc = "There have been too many login attempts with this account recently. Please try again later."
+invalidTokenTitle = "Error During Login:<br>Invalid Token"
+invalidTokenDesc = "The provided access token is invalid."
+tokenHasProfileTitle = "Error During Login:<br>Token Has Profile"
+tokenHasProfileDesc = "Access token already has a profile assigned. Selecting profiles is not implemented yet."
+credentialsMissingTitle = "Error During Login:<br>Credentials Missing"
+credentialsMissingDesc = "Username/password was not submitted or password is less than 3 characters."
+invalidSaltVersionTitle = "Error During Login:<br>Invalid Salt Version"
+invalidSaltVersionDesc = "Invalid salt version."
+unsupportedMediaTypeTitle = "Internal Error:<br>Unsupported Media Type"
+unsupportedMediaTypeDesc = "Unsupported media type. Please report this error."
+accountGoneTitle = "Error During Login:<br>Account Migrated"
+accountGoneDesc = "Account has been migrated to a Microsoft account. Please log in with Microsoft."
+unreachableTitle = "Error During Login:<br>Unreachable"
+unreachableDesc = "Unable to reach the authentication servers. Ensure that they are online and you are connected to the internet."
+gameNotPurchasedTitle = "Error During Login:<br>Game Not Purchased"
+gameNotPurchasedDesc = "The account you are trying to login with has not purchased a copy of Minecraft. You may purchase a copy on <a href=\"https://minecraft.net/\">Minecraft.net</a>"
+unknownErrorTitle = "Unknown Error During Login"
+unknownErrorDesc = "An unknown error has occurred. Please see the console for details."

app/assets/lang/ko_KR.toml

@@ -0,0 +1,345 @@
+[ejs.landing]
+updateAvailableTooltip = "업데이트 가능"
+usernamePlaceholder = "사용자 이름"
+usernameEditButton = "편집"
+settingsTooltip = "설정"
+serverStatus = "서버"
+serverStatusPlaceholder = "오프라인"
+mojangStatus = "MOJANG 상태"
+mojangStatusTooltipTitle = "서비스"
+mojangStatusNETitle = "Non Essential"
+newsButton = "NEWS"
+launchButton = "PLAY"
+launchButtonPlaceholder = "• 선택된 서버 없음"
+launchDetails = "잠시만 기다려주세요.."
+newsNavigationStatus = "{currentPage} / {totalPages}"
+newsErrorLoadSpan = "뉴스를 확인하는 중.."
+newsErrorFailedSpan = "뉴스 불러오기 실패"
+newsErrorRetryButton = "다시 시도"
+newsErrorNoneSpan = "뉴스 없음"
+
+[ejs.login]
+loginCancelText = "취소"
+loginSubheader = "마인크래프트 로그인"
+loginEmailError = "* 유효하지 않은 값"
+loginEmailPlaceholder = "이메일 또는 사용자 이름"
+loginPasswordError = "* 필수 항목"
+loginPasswordPlaceholder = "비밀번호"
+loginForgotPasswordLink = "https://minecraft.net/password/forgot/"
+loginForgotPasswordText = "비밀번호를 잊으셨나요?"
+loginRememberMeText = "로그인 저장"
+loginButtonText = "로그인"
+loginNeedAccountLink = "https://minecraft.net/store/minecraft-java-edition/"
+loginNeedAccountText = "계정이 없으신가요?"
+loginPasswordDisclaimer1 = "비밀번호는 Mojang에 직접 전송되며 저장되지 않습니다."
+loginPasswordDisclaimer2 = "{appName}는 Mojang AB와 관련이 없습니다."
+
+[ejs.loginOptions]
+loginOptionsTitle = "로그인 옵션"
+loginWithMicrosoft = "Microsoft 계정으로 로그인"
+loginWithMojang = "Mojang 계정으로 로그인"
+cancelButton = "취소"
+
+[ejs.overlay]
+serverSelectHeader = "서버 선택"
+serverSelectConfirm = "선택"
+serverSelectCancel = "취소"
+accountSelectHeader = "계정 선택"
+accountSelectConfirm = "선택"
+accountSelectCancel = "취소"
+
+[ejs.settings]
+navHeaderText = "설정"
+navAccount = "계정"
+navMinecraft = "마인크래프트"
+navMods = "모드"
+navJava = "Java"
+navLauncher = "런처"
+navAbout = "정보"
+navUpdates = "업데이트"
+navDone = "완료"
+tabAccountHeaderText = "계정 설정"
+tabAccountHeaderDesc = "새로운 계정을 추가하거나 기존 계정을 관리합니다."
+microsoftAccount = "Microsoft"
+addMicrosoftAccount = "+ Microsoft 계정 추가"
+mojangAccount = "Mojang"
+addMojangAccount = "+ Mojang 계정 추가"
+minecraftTabHeaderText = "마인크래프트 설정"
+minecraftTabHeaderDesc = "게임 실행과 관련된 설정입니다."
+gameResolutionTitle = "게임 해상도"
+launchFullscreenTitle = "전체 화면으로 실행합니다."
+autoConnectTitle = "게임 실행 후 자동으로 서버에 접속합니다."
+launchDetachedTitle = "런처와 게임 프로세스를 분리하여 실행합니다."
+launchDetachedDesc = "이 옵션을 사용하면 런처를 닫아도 게임이 계속 실행됩니다."
+tabModsHeaderText = "모드 설정"
+tabModsHeaderDesc = "모드를 활성화하거나 비활성화합니다."
+switchServerButton = "변경"
+requiredMods = "필수 모드"
+optionalMods = "선택 모드"
+dropinMods = "사용자 추가 모드"
+addMods = "모드 추가"
+dropinRefreshNote = "(F5를 눌러 새로고침)"
+shaderpacks = "쉐이더팩"
+shaderpackDesc = "쉐이더를 활성화하거나 비활성화합니다. 쉐이더가 원활하게 작동하려면 높은 컴퓨터 성능이 필요합니다. 여기서 쉐이더팩을 추가할 수 있습니다."
+selectShaderpack = "쉐이더팩 선택"
+tabJavaHeaderText = "Java 설정"
+tabJavaHeaderDesc = "Java 설정을 관리합니다 (고급 설정)."
+memoryTitle = "메모리"
+maxRAM = "최대 RAM"
+minRAM = "최소 RAM"
+memoryDesc = "권장하는 최소 RAM은 4GB입니다. 최소와 최대 RAM을 같은 값으로 설정하면 게임 렉을 줄일 수 있습니다."
+memoryTotalTitle = "전체"
+memoryAvailableTitle = "사용 가능"
+javaExecutableTitle = "Java 실행 파일"
+javaExecSelDialogTitle = "Java 실행 파일 선택"
+javaExecSelButtonText = "파일 선택"
+javaExecDesc = "게임 실행 전에 Java 실행 파일의 유효성을 검사합니다."
+javaPathDesc = "Java 실행 파일의 경로는 반드시 <strong>{pathSuffix}</strong>로 끝나야 합니다."
+jvmOptsTitle = "JVM 인수 설정"
+jvmOptsDesc = "실행 시 JVM에 전달할 추가 인수를 설정합니다. <em>-Xms</em>와 <em>-Xmx</em>는 포함되지 않아야 합니다."
+launcherTabHeaderText = "런처 설정"
+launcherTabHeaderDesc = "런처와 관련된 설정입니다."
+allowPrereleaseTitle = "프리릴리즈 업데이트를 허용합니다."
+allowPrereleaseDesc = "프리릴리즈는 안정성이 보장되지 않은 기능을 포함할 수 있습니다.<br>현재 실행 중인 런처가 프리릴리즈 버전이라면, 이 설정은 항상 활성화됩니다."
+dataDirectoryTitle = "데이터 디렉토리"
+selectDataDirectory = "데이터 디렉토리 선택"
+chooseFolder = "폴더 선택"
+dataDirectoryDesc = "모든 게임 파일과 로컬 Java 설치는 데이터 디렉토리에 저장됩니다.<br>스크린샷과 월드 데이터는 서버 설정에서 지정한 인스턴스 폴더에 저장됩니다."
+aboutTabHeaderText = "정보"
+aboutTabHeaderDesc = "런처 정보와 릴리즈 노트를 확인합니다."
+aboutTitle = "{appName}"
+stableRelease = "Stable Release"
+versionText = "Version "
+sourceGithub = "GitHub"
+sourceOriginalGithub = "Original GitHub"
+support = "Support"
+devToolsConsole = "DevTools Console"
+releaseNotes = "릴리즈 노트"
+changelog = "변경 로그"
+noReleaseNotes = "릴리즈 노트 없음"
+viewReleaseNotes = "GitHub에서 릴리즈 노트 보기"
+launcherUpdatesHeaderText = "런처 업데이트"
+launcherUpdatesHeaderDesc = "런처 업데이트를 확인하고 설치합니다."
+checkForUpdates = "업데이트 확인"
+whatsNew = "새로운 기능"
+updateReleaseNotes = "업데이트 릴리즈 노트"
+
+[ejs.waiting]
+waitingText = "Microsoft의 응답을 기다리는 중.."
+
+[ejs.welcome]
+continueButton = "계속"
+
+
+[js.discord]
+waiting = "클라이언트 대기 중.."
+state = "Server: {shortId}"
+
+[js.index]
+microsoftLoginTitle = "Microsoft 로그인"
+microsoftLogoutTitle = "Microsoft 로그아웃"
+
+[js.login]
+login = "로그인"
+loggingIn = "로그인 중"
+success = "성공"
+tryAgain = "다시 시도"
+
+[js.login.error]
+invalidValue = "* 유효하지 않은 값"
+requiredValue = "* 필수 항목"
+
+[js.login.error.unknown]
+title = "알 수 없는 로그인 오류"
+desc = "로그인 중 알 수 없는 오류가 발생했습니다. 콘솔에서 자세한 내용을 확인하세요."
+
+[js.landing.launch]
+pleaseWait = "잠시만 기다려주세요.."
+failureTitle = "실행 중 오류 발생"
+failureText = "콘솔 (CTRL + Shift + i) 에서 자세한 내용을 확인하세요."
+okay = "확인"
+
+[js.landing.selectedAccount]
+noAccountSelected = "선택된 계정 없음"
+
+[js.landing.selectedServer]
+noSelection = "선택된 서버 없음"
+loading = "로딩 중.."
+
+[js.landing.serverStatus]
+server = "서버"
+offline = "오프라인"
+players = "플레이어"
+
+[js.landing.systemScan]
+checking = "시스템 정보 확인 중.."
+noCompatibleJava = "호환되는 Java가<br>설치되지 않음"
+installJavaMessage = "마인크래프트 실행을 위해 64비트 Java {major} 설치가 필요합니다. Java를 설치할까요?"
+installJava = "Java 설치"
+installJavaManually = "수동 설치"
+javaDownloadPrepare = "Java 다운로드 준비 중.."
+javaDownloadFailureTitle = "Java 다운로드 중 오류 발생"
+javaDownloadFailureText = "콘솔 (CTRL + Shift + i) 에서 자세한 내용을 확인하세요."
+javaRequired = "실행을 위해<br>Java가 필요합니다"
+javaRequiredMessage = "실행을 위해 유효한 64비트 Java {major} 를 설치해야 합니다.<br><br><a href=\"https://github.com/peunsu/MRSLauncher/wiki/Java-%EA%B4%80%EB%A6%AC#java-%EC%88%98%EB%8F%99-%EC%84%A4%EC%B9%98\">Java Management Guide</a>를 참조하여 Java 수동 설치 방법을 확인하세요."
+javaRequiredDismiss = "확인"
+javaRequiredCancel = "돌아가기"
+
+[js.landing.downloadJava]
+findJdkFailure = "OpenJDK를 찾을 수 없습니다."
+javaDownloadCorruptedError = "다운로드한 JDK가 손상되었습니다."
+extractingJava = "Java 압축 해제 중.."
+javaInstalled = "Java 설치 완료!"
+
+[js.landing.dlAsync]
+loadingServerInfo = "서버 정보 로딩 중.."
+fatalError = "치명적 오류 발생"
+unableToLoadDistributionIndex = "배포 인덱스를 불러올 수 없습니다. 콘솔 (CTRL + Shift + i) 에서 자세한 내용을 확인하세요."
+pleaseWait = "잠시만 기다려주세요.."
+errorDuringLaunchTitle = "실행 중 오류 발생"
+seeConsoleForDetails = "콘솔 (CTRL + Shift + i) 에서 자세한 내용을 확인하세요."
+validatingFileIntegrity = "파일 무결성 검사 중.."
+errorDuringFileVerificationTitle = "파일 검사 중 오류 발생"
+downloadingFiles = "파일 다운로드 중.."
+errorDuringFileDownloadTitle = "파일 다운로드 중 오류 발생"
+preparingToLaunch = "실행 준비 중.."
+launchingGame = "게임 실행 중.."
+launchWrapperNotDownloaded = "게임 실행을 위한 메인 파일(LaunchWrapper)을 다운로드할 수 없습니다.<br><br>문제 해결을 위해 임시로 안티바이러스 프로그램을 비활성화한 뒤 게임을 다시 실행해 보세요.<br><br>만약 이 문제가 계속된다면, <a href=\"https://github.com/peunsu/MRSLauncher/issues\">GitHub 이슈 페이지</a>에 사용 중인 안티바이러스 프로그램과 함께 문제를 제보해 주세요."
+doneEnjoyServer = "완료. 즐거운 시간 되세요!"
+checkConsoleForDetails = "콘솔 (CTRL + Shift + i) 에서 자세한 내용을 확인하세요."
+
+[js.landing.news]
+checking = "뉴스 확인 중"
+
+[js.landing.discord]
+loading = "게임 로딩 중.."
+joining = "서버 접속 중.."
+joined = "Mystic Red Space"
+
+[js.overlay]
+dismiss = "닫기"
+
+[js.settings.fileSelectors]
+executables = "실행 파일"
+allFiles = "모든 파일"
+
+[js.settings.mstfLogin]
+errorTitle = "오류 발생"
+errorMessage = "Microsoft 로그인에 실패했습니다. 다시 시도해 주세요."
+okButton = "확인"
+
+[js.settings.mstfLogout]
+errorTitle = "오류 발생"
+errorMessage = "Microsoft 로그아웃에 실패했습니다. 다시 시도해 주세요."
+okButton = "확인"
+
+[js.settings.authAccountSelect]
+selectButton = "계정 선택"
+selectedButton = "선택된 계정 &#10004;"
+
+[js.settings.authAccountLogout]
+lastAccountWarningTitle = "경고<br>마지막 남은 계정을 로그아웃합니다."
+lastAccountWarningMessage = "런처를 사용하려면 최소한 하나의 계정은 로그인되어 있어야 합니다.<br><br>정말 로그아웃 하시겠습니까?"
+confirmButton = "확인"
+cancelButton = "취소"
+
+[js.settings.authAccountPopulate]
+username = "사용자 이름"
+uuid = "UUID"
+selectAccount = "계정 선택"
+selectedAccount = "선택된 계정 ✓"
+logout = "로그아웃"
+
+[js.settings.dropinMods]
+removeButton = "제거"
+deleteFailedTitle = "사용자 추가 모드 삭제 실패<br>{fullName}"
+deleteFailedMessage = "삭제하려는 파일이 사용 중인지 확인하고 다시 시도해 주세요."
+failedToggleTitle = "사용자 추가 모드를<br>활성화/비활성화할 수 없습니다."
+okButton = "확인"
+
+[js.settings.serverListing]
+mainServer = "메인 서버"
+
+[js.settings.java]
+selectedJava = "선택: Java {version} ({vendor})"
+invalidSelection = "유효하지 않은 선택"
+requiresJava = "64비트 Java {major}가 필요합니다."
+availableOptions = "Java {major} (HotSpot VM)의 사용 가능한 JVM 인수"
+
+[js.settings.about]
+preReleaseTitle = "Pre-release"
+stableReleaseTitle = "Stable Release"
+releaseNotesFailed = "릴리즈 노트를 불러올 수 없습니다."
+
+[js.settings.updates]
+newReleaseTitle = "새로운 Release 업데이트 가능"
+newPreReleaseTitle = "새로운 Pre-Release 업데이트 가능"
+downloadingButton = "다운로드 중.."
+downloadButton = 'GitHub에서 다운로드<span style="font-size: 10px;color: gray;text-shadow: none !important;">런처를 종료하고 dmg 파일을 실행하여 업데이트하세요.</span>'
+latestVersionTitle = "최신 버전을 사용하고 있습니다"
+checkForUpdatesButton = "업데이트 확인"
+checkingForUpdatesButton = "업데이트 확인 중.."
+
+[js.settings.msftLogin]
+errorTitle = "Microsoft 로그인 실패"
+errorMessage = "Microsoft 계정으로 로그인할 수 없습니다. 다시 시도해 주세요."
+okButton = "확인"
+
+[js.uibinder.startup]
+fatalErrorTitle = "치명적 오류: 배포 인덱스를 불러올 수 없습니다."
+fatalErrorMessage = "배포 인덱스 다운로드 서버에 연결할 수 없습니다. 로컬 복사본도 존재하지 않습니다.<br><br>배포 인덱스는 최신 서버 정보를 제공하는 필수 파일로 런처를 실행하기 위해 필요합니다. 인터넷 연결을 확인하고 프로그램을 다시 실행해 보세요."
+closeButton = "닫기"
+
+[js.uibinder.validateAccount]
+failedMessageTitle = "로그인 갱신 실패"
+failedMessage = "<strong>{account}</strong>의 로그인을 갱신할 수 없습니다. 다른 계정을 선택하거나 다시 로그인하세요."
+failedMessageSelectAnotherAccount = "<strong>{account}</strong>의 로그인을 갱신할 수 없습니다. 다시 로그인하세요."
+loginButton = "로그인"
+selectAnotherAccountButton = "다른 계정 선택"
+
+[js.uicore.autoUpdate]
+checkingForUpdateButton = "업데이트 확인 중..."
+installNowButton = "설치하기"
+checkForUpdatesButton = "업데이트 확인"
+
+[js.auth.microsoft.error]
+noProfileTitle = "로그인 중 오류 발생:<br>프로필이 설정되지 않음"
+noProfileDesc = "Microsoft 계정에 마인크래프트 프로필이 설정되지 않았습니다. 마인크래프트를 구매했거나 Xbox Game Pass를 사용 중이라면, <a href=\"https://www.minecraft.net/\">Minecraft.net</a>에서 로그인하여 프로필을 설정하세요.<br><br>아직 게임을 구매하지 않았다면, <a href=\"https://www.minecraft.net/\">Minecraft.net</a>에서 구매하세요."
+noXboxAccountTitle = "로그인 중 오류 발생:<br>Xbox 계정 없음"
+noXboxAccountDesc = "Microsoft 계정에 연결된 Xbox 계정이 없습니다."
+xblBannedTitle = "로그인 중 오류 발생:<br>Xbox Live 이용 불가"
+xblBannedDesc = "Xbox Live 이용이 제한되거나 차단된 국가의 Microsoft 계정으로 로그인할 수 없습니다."
+under18Title = "로그인 중 오류 발생:<br>부모 동의 필요"
+under18Desc = "18세 미만 유저의 계정은 부모의 가족 구성원으로 등록되어 있어야 합니다."
+unknownTitle = "로그인 중 알 수 없는 오류 발생"
+unknownDesc = "로그인 중 알 수 없는 오류가 발생했습니다. 콘솔에서 자세한 내용을 확인하세요."
+
+[js.auth.mojang.error]
+methodNotAllowedTitle = "내부 오류 발생:<br>허용되지 않은 메소드"
+methodNotAllowedDesc = "메소드가 허용되지 않습니다. 개발자에게 이 문제를 보고하세요."
+notFoundTitle = "내부 오류 발생:<br>엔드포인트를 찾을 수 없음"
+notFoundDesc = "인증 엔드포인트를 찾을 수 없습니다. 개발자에게 이 문제를 보고하세요."
+accountMigratedTitle = "로그인 중 오류 발생:<br>마이그레이션된 계정"
+accountMigratedDesc = "마이그레이션된 계정으로 로그인을 시도했습니다. 사용자 이름에 계정 이메일 주소를 입력하여 로그인하세요."
+invalidCredentialsTitle = "로그인 중 오류 발생:<br>잘못된 자격 증명"
+invalidCredentialsDesc = "이메일 또는 비밀번호가 잘못되었습니다. 다시 시도하세요."
+tooManyAttemptsTitle = "로그인 중 오류 발생:<br>시도 횟수 초과"
+tooManyAttemptsDesc = "로그인 시도 횟수가 너무 많습니다. 잠시 후 다시 시도하세요."
+invalidTokenTitle = "로그인 중 오류 발생:<br>유효하지 않은 토큰"
+invalidTokenDesc = "유효하지 않은 액세스 토큰입니다."
+tokenHasProfileTitle = "로그인 중 오류 발생:<br>프로필이 할당된 토큰"
+tokenHasProfileDesc = "액세스 토큰에 이미 프로필이 할당되어 있습니다. 프로필 선택은 아직 지원되지 않습니다."
+credentialsMissingTitle = "로그인 중 오류 발생:<br>자격 증명 누락"
+credentialsMissingDesc = "사용자 이름 또는 비밀번호가 비어있거나, 비밀번호가 3글자 미만으로 입력되었습니다."
+invalidSaltVersionTitle = "로그인 중 오류 발생:<br>유효하지 않은 Salt 버전"
+invalidSaltVersionDesc = "유효하지 않은 Salt 버전입니다."
+unsupportedMediaTypeTitle = "내부 오류 발새:<br>지원되지 않는 미디어 타입"
+unsupportedMediaTypeDesc = "지원되지 않는 미디어 타입입니다. 개발자에게 이 문제를 보고하세요."
+accountGoneTitle = "로그인 중 오류 발생:<br>마이그레이션된 계정"
+accountGoneDesc = "Microsoft로 마이그레이션된 계정입니다. Microsoft 계정으로 로그인하세요."
+unreachableTitle = "로그인 중 오류 발생:<br>서버에 연결할 수 없음"
+unreachableDesc = "인증 서버에 연결할 수 없습니다. 인증 서버가 온라인 상태이고 인터넷 연결이 정상인지 확인하세요."
+gameNotPurchasedTitle = "로그인 중 오류 발생:<br>게임을 구매하지 않음"
+gameNotPurchasedDesc = "로그인을 시도한 계정은 마인크래프트를 구매하지 않았습니다. <a href=\"https://minecraft.net/\">Minecraft.net</a>에서 게임을 구매하세요."
+unknownErrorTitle = "로그인 중 알 수 없는 오류 발생"
+unknownErrorDesc = "로그인 중 알 수 없는 오류가 발생했습니다. 콘솔에서 자세한 내용을 확인하세요."

app/assets/launcher/catalog.json

@@ -0,0 +1,45 @@
+{
+  "version": 1,
+  "profiles": [
+    {
+      "id": "mrs-concatenation-lite",
+      "name": "Concatenation Lite",
+      "kind": "modpack",
+      "description": "기존 MRS 분배 인덱스를 사용하는 예시 프로필입니다. 프로필 카탈로그 구조가 동작하는지 확인할 때 사용할 수 있습니다.",
+      "details": "Mystic Red Space에서 운영하던 기존 분배 인덱스를 그대로 사용합니다.\n\n사용자는 이 항목을 라이브러리에 추가한 뒤 바로 실행할 수 있습니다.\n관리자는 distribution URL과 기본 접속 주소를 유지하거나 교체해서 실서비스용 항목으로 바꿀 수 있습니다.",
+      "distributionUrl": "https://cdn.mysticred.space/launcher/distribution.json",
+      "defaultServerAddress": "play.mysticred.space",
+      "allowCustomServerAddress": true
+    },
+    {
+      "id": "template-original-map",
+      "name": "Original Map Template",
+      "kind": "map",
+      "description": "오리지널 맵용 템플릿입니다. vanilla 또는 맵 전용 distribution URL과 월드 ZIP 경로를 채우면 싱글플레이 빠른 실행에 사용할 수 있습니다.",
+      "details": "관리자는 이 항목에 월드 ZIP과 클라이언트 distribution URL을 미리 등록합니다.\n\n사용자는 설치 페이지에서 설명을 읽고 라이브러리에 추가한 뒤, 라이브러리에서 맵 자료를 준비하고 바로 실행할 수 있습니다.",
+      "distributionUrl": "https://example.com/launcher/vanilla-map-distribution.json",
+      "worldArchiveUrl": "https://example.com/maps/original-map.zip",
+      "worldDirectoryName": "Original Map",
+      "defaultServerAddress": "",
+      "allowCustomServerAddress": false,
+      "configured": false
+    },
+    {
+      "id": "template-plugin-server-pack",
+      "name": "Plugin Server Pack Template",
+      "kind": "server-pack",
+      "description": "플러그인 맵 + 서버 접속용 템플릿입니다. 클라이언트 distribution, 서버 번들 ZIP, 서버 시작 명령, 선택형 터널 명령을 연결하면 됩니다.",
+      "details": "관리자는 클라이언트 배포 파일, 서버 번들, 서버 시작 명령을 미리 등록합니다.\n\n사용자는 설치 페이지에서 상세 내용을 확인하고 라이브러리에 추가한 뒤, 라이브러리에서 직접 서버를 켜거나 수동 주소를 넣어 접속할 수 있습니다.",
+      "distributionUrl": "https://example.com/launcher/server-pack-client-distribution.json",
+      "serverBundleUrl": "https://example.com/serverpacks/plugin-world-server.zip",
+      "serverDirectoryName": "plugin-world-server",
+      "serverLaunchCommand": "java -jar server.jar nogui",
+      "serverPort": 25565,
+      "tunnelCommand": "",
+      "tunnelAddressRegex": "",
+      "defaultServerAddress": "",
+      "allowCustomServerAddress": true,
+      "configured": false
+    }
+  ]
+}