feat: Verified mods listing

client/resource/verified_mods.json

@@ -0,0 +1,12 @@
+{
+    "Mod Settings":
+    {
+        "DependencyPrefix": "EladNLG-ModSettings",
+        "Versions": [ "1.0.0", "1.1.0" ]
+    },
+    "Moblin.Archon":
+    {
+        "DependencyPrefix": "GalacticMoblin-MoblinArchon",
+        "Versions": [ "1.3.0", "1.3.1" ]
+    }
+}

client/verified_mods.js

@@ -0,0 +1,86 @@
+const path = require( "path" )
+const fs = require( "fs" )
+
+// Checks if a mod entry is an object, has "DependencyPrefix" and "Versions" properties,
+// and also checks if both fields have correct format.
+function checkModEntry ( modContent )
+{
+	if ( typeof modContent !== "object" || Array.isArray( modContent ) || modContent === null )
+		return false
+	if ( !Object.prototype.hasOwnProperty.call( modContent, "DependencyPrefix" ) || !Object.prototype.hasOwnProperty.call( modContent, "Versions" ) )
+		return false
+
+	// Checking TeamName-ModName format.
+	const dependencyPrefix = modContent["DependencyPrefix"]
+	if ( !/^[a-zA-Z0-9_]+-[a-zA-Z0-9_]+$/.test( dependencyPrefix ) )
+		return false
+
+	// Checking x.y.z versions format.
+	const versions = modContent["Versions"]
+	for ( const version of versions )
+	{
+		if ( Object.prototype.toString.call( version ) !== "[object String]" || !/[0-9]+\.[0-9]+\.[0-9]$/.test( version ) )
+			return false
+	}
+
+	return true
+}
+
+// Remove mod entries that do not match formatting convention from exposed mods list.
+function checkAllMods()
+{
+	const mods = Object.keys( verifiedMods )
+
+	for ( let i=0; i<mods.length; i++ )
+	{
+		const mod = mods[i]
+		if ( !checkModEntry( verifiedMods[mod] ) )
+		{
+			console.warn( `Since "${mod}" does not have correct format, it was removed from verified mods list.` )
+			delete verifiedMods[mod]
+		}
+	}
+}
+
+const { getRatelimit } = require( "../shared/ratelimit.js" )
+const verifiedModsPath = path.join( __dirname, "resource", "verified_mods.json" )
+
+// watch the JSON file so we can update it without a masterserver restart
+fs.watch( verifiedModsPath, () =>
+{
+	try
+	{
+		verifiedMods = JSON.parse( fs.readFileSync( verifiedModsPath ).toString() )
+		checkAllMods()
+		console.log( "Updated verified mods list successfully!" )
+	}
+	catch ( ex )
+	{
+		console.log( `Encountered error updating verified mods list: ${ ex }` )
+	}
+} )
+
+let verifiedMods = {}
+if ( fs.existsSync( verifiedModsPath ) )
+{
+	verifiedMods = JSON.parse( fs.readFileSync( verifiedModsPath ).toString() )
+	checkAllMods()
+}
+
+module.exports = ( fastify, opts, done ) =>
+{
+	// exported routes
+
+	// GET /client/verifiedmods
+	// returns a list of manually-verified mods
+	fastify.get( "/client/verifiedmods",
+		{
+			config: { rateLimit: getRatelimit( "REQ_PER_MINUTE__CLIENT_VERIFIEDMODS" ) }, // ratelimit
+		},
+		async ( ) =>
+		{
+			return verifiedMods
+		} )
+
+	done()
+}

dev.env

@@ -22,6 +22,7 @@ REQ_PER_MINUTE__CLIENT_ORIGINAUTH=5
 REQ_PER_MINUTE__CLIENT_AUTHWITHSERVER=10
 REQ_PER_MINUTE__CLIENT_AUTHWITHSELF=25
 REQ_PER_MINUTE__CLIENT_MAINMENUPROMOS=20
+REQ_PER_MINUTE__CLIENT_VERIFIEDMODS=1
 REQ_PER_MINUTE__CLIENT_SERVERS=100
 REQ_PER_MINUTE__SERVER_ADDSERVER=5
 REQ_PER_MINUTE__SERVER_HEARTBEAT=60