Enable remote launcher catalog source

app/assets/js/catalogmanager.js

@@ -6,6 +6,8 @@ const ConfigManager = require('./configmanager')
 const { DEFAULT_REMOTE_DISTRO_URL, setRemoteDistributionUrl } = require('./distromanager')
 
 const LOCAL_CATALOG_PATH = path.join(__dirname, '..', 'launcher', 'catalog.json')
+const ROOT_ASSET_PATH = path.join(__dirname, '..', '..', '..')
+const DEFAULT_REMOTE_CATALOG_URL = normalizeNullableText(process.env.LAUNCHER_CATALOG_URL) || 'http://127.0.0.1:8787/catalog.json'
 
 function normalizeText(value){
     return typeof value === 'string' ? value.trim() : ''
@@ -28,6 +30,14 @@ function normalizePositiveInteger(value, fallback, minimum = 1){
     return fallback
 }
 
+function isRemoteSource(source){
+    return /^https?:\/\//i.test(source)
+}
+
+function isAbsoluteFileSystemPath(source){
+    return path.isAbsolute(source) || /^[a-zA-Z]:[\\/]/.test(source)
+}
+
 function deriveFeatureFlags(rawProfile){
     const legacyKind = normalizeText(rawProfile?.kind)
 
@@ -77,7 +87,24 @@ function resolveLegacyServerJar(rawProfile){
     return null
 }
 
-function toStoredProfile(rawProfile){
+function resolveProfileSourceValue(value, catalogSource){
+    const nextValue = normalizeNullableText(value)
+    if(nextValue == null){
+        return null
+    }
+
+    if(isRemoteSource(nextValue) || nextValue.startsWith('file://') || isAbsoluteFileSystemPath(nextValue)){
+        return nextValue
+    }
+
+    if(isRemoteSource(catalogSource)){
+        return new URL(nextValue, catalogSource).toString()
+    }
+
+    return path.resolve(ROOT_ASSET_PATH, nextValue)
+}
+
+function toStoredProfile(rawProfile, catalogSource){
     const flags = deriveFeatureFlags(rawProfile)
     const storedProfile = {
         id: normalizeText(rawProfile.id),
@@ -85,19 +112,19 @@ function toStoredProfile(rawProfile){
         kind: deriveLegacyKind(flags),
         description: normalizeText(rawProfile.description),
         details: normalizeText(rawProfile.details),
-        distributionUrl: normalizeNullableText(rawProfile.distributionUrl),
+        distributionUrl: resolveProfileSourceValue(rawProfile.distributionUrl, catalogSource),
         modsEnabled: flags.modsEnabled,
         pluginsEnabled: flags.pluginsEnabled,
         serverEnabled: flags.serverEnabled,
-        worldArchiveUrl: normalizeNullableText(rawProfile.worldArchiveUrl),
+        worldArchiveUrl: resolveProfileSourceValue(rawProfile.worldArchiveUrl, catalogSource),
         worldDirectoryName: normalizeNullableText(rawProfile.worldDirectoryName),
-        serverJarUrl: resolveLegacyServerJar(rawProfile),
+        serverJarUrl: resolveProfileSourceValue(resolveLegacyServerJar(rawProfile), catalogSource),
         serverDirectoryName: normalizeText(rawProfile.serverDirectoryName) || 'server',
         serverPort: Number.isFinite(Number(rawProfile.serverPort)) ? Number(rawProfile.serverPort) : 25565,
         serverMemoryMb: normalizePositiveInteger(rawProfile.serverMemoryMb, 4096, 512),
         serverMaxPlayers: normalizePositiveInteger(rawProfile.serverMaxPlayers, 20, 1),
         serverWhitelistEnabled: normalizeBoolean(rawProfile.serverWhitelistEnabled),
-        artwork: normalizeText(rawProfile.artwork)
+        artwork: resolveProfileSourceValue(rawProfile.artwork, catalogSource) ?? ''
     }
 
     if(!storedProfile.serverEnabled){
@@ -112,8 +139,8 @@ function toStoredProfile(rawProfile){
     return storedProfile
 }
 
-function normalizeProfile(rawProfile, sourceType = 'catalog'){
-    const storedProfile = toStoredProfile(rawProfile)
+function normalizeProfile(rawProfile, sourceType = 'catalog', catalogSource = LOCAL_CATALOG_PATH){
+    const storedProfile = toStoredProfile(rawProfile, catalogSource)
     const launchIssues = []
     const hostIssues = []
 
@@ -168,19 +195,39 @@ exports.getLocalCatalogPath = function(){
     return LOCAL_CATALOG_PATH
 }
 
+exports.getDefaultRemoteCatalogUrl = function(){
+    return DEFAULT_REMOTE_CATALOG_URL
+}
+
+function buildCatalogSourceCandidates(configuredSource){
+    const trimmedSource = normalizeNullableText(configuredSource)
+    if(trimmedSource != null){
+        return [trimmedSource]
+    }
+
+    return [DEFAULT_REMOTE_CATALOG_URL, LOCAL_CATALOG_PATH]
+}
+
 exports.loadCatalog = async function(){
     const configuredSource = ConfigManager.getLibraryCatalogSource()
-    const source = configuredSource != null && configuredSource.trim().length > 0 ? configuredSource.trim() : LOCAL_CATALOG_PATH
+    const sourceCandidates = buildCatalogSourceCandidates(configuredSource)
     let rawCatalog = {
         version: 1,
         profiles: []
     }
     let sourceError = null
+    let source = sourceCandidates[sourceCandidates.length - 1]
 
-    try {
-        rawCatalog = await readCatalogSource(source)
-    } catch (error) {
-        sourceError = error
+    for(const candidate of sourceCandidates){
+        try {
+            rawCatalog = await readCatalogSource(candidate)
+            source = candidate
+            sourceError = null
+            break
+        } catch (error) {
+            source = candidate
+            sourceError = error
+        }
     }
 
     const rawProfiles = Array.isArray(rawCatalog.profiles) ? rawCatalog.profiles : []
@@ -191,7 +238,7 @@ exports.loadCatalog = async function(){
         sourceError,
         profiles: rawProfiles
             .filter((profile) => profile != null && typeof profile.id === 'string' && typeof profile.name === 'string')
-            .map((profile) => normalizeProfile(profile, 'catalog'))
+            .map((profile) => normalizeProfile(profile, 'catalog', source))
             .sort((left, right) => left.name.localeCompare(right.name, 'ko'))
     }
 }