Initial commit

src/util/steam/steam.ts

@@ -0,0 +1,110 @@
+/* Galvanic Corrosion - Rec Room custom server for communities.
+<https://gitea.proxnet.dev/zombieb/galvanic-corrosion>
+Copyright (C) 2025 @zombieb (Discord / proxnet Gitea)
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published
+by the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>. */
+
+import Logging from "@proxnet/undead-logging";
+import { SteamAuth, SteamAuthResult, SteamAuthRes } from "./SteamAuthTypes.ts";
+import { SteamPlayer } from "./SteamCommonTypes.ts";
+
+const log = new Logging("Steam");
+
+const steamkey = Deno.env.get("STEAMKEY");
+
+function buildSteamUrl(steaminterface: string, endpoint: string) {
+    return `https://api.steampowered.com/${steaminterface}/${endpoint}`;
+}
+
+export enum PersonaState {
+	Offline,
+	Online,
+	Busy,
+	Away,
+	Snooze,
+	LookingToTrade,
+	LookingToPlay
+}
+
+export enum CommunityVisibilityState {
+	NotVisible,
+	PubliclyVisible = 3
+}
+
+class SteamBase {
+    
+    async GetPlayerSummaries(steamids: string[]) {
+        if (!steamkey) return null;
+
+        const params = new URLSearchParams();
+        params.append('key', steamkey);
+        params.append('steamids', steamids.join(','))
+
+        try {
+            const res = await fetch(`${buildSteamUrl('ISteamUser', 'GetPlayerSummaries/v2')}?${params}`);
+            if (res.status !== 200) return null;
+
+            const resjson = await res.json() as { response: { players: SteamPlayer[] } };
+            return resjson.response.players;
+        } catch (err) {
+            log.e(`Could not fetch Steam player summaries: ${(err as Error).stack}`);
+            return null;
+        }
+    }
+
+    async AuthenticateUserTicket(ticket: string, userid: string): Promise<SteamAuth> {
+        if (!steamkey) return { valid: SteamAuthResult.NotConfigured }; // always authenticate if no steam API key was found
+
+        const params = new URLSearchParams();
+        params.append('key', steamkey);
+        params.append('appid', "471710");
+        params.append('ticket', ticket);
+
+        try {
+            const res = await fetch(`${buildSteamUrl('ISteamUserAuth', 'AuthenticateUserTicket/v1')}?${params}`);
+            const resjson = (await res.json()) as SteamAuthRes;
+        
+            if (resjson.response.error) {
+                log.w(`Steam Authentication failed: (${resjson.response.error.errorcode}) ${resjson.response.error.errordesc}`);
+                
+                // add more error codes later if needed
+                const conditions = [
+                    resjson.response.error.errorcode == 100
+                ].includes(true);
+                if (conditions) log.w('This error indicates a client problem.');
+                return { valid: SteamAuthResult.Failure, res: resjson.response.error };
+            }
+        
+            //log.d(JSON.stringify(resjson.response));
+            if (resjson.response.params) {
+                // since rec room is not eligible for family sharing on Steam
+                const valid = resjson.response.params.steamid === userid && resjson.response.params.ownersteamid === userid;
+                if (valid) return { valid: SteamAuthResult.Success, res: resjson.response.params }
+                else throw new Error('`ownersteamid` is not equal to `steamid`, report me to GC devs!');
+            }
+            else {
+                log.w("Steam Authentication failed: Steam response did not contain params or error! This should never be logged!");
+                return { valid: SteamAuthResult.Failure, res: { errorcode: -1, errordesc: 'Steam response error' } };
+            }
+        } catch (err) {
+            log.w(`Steam Authentication failed: ${(err as Error).message}`);
+            return { valid: SteamAuthResult.Failure, res: { errorcode: -1, errordesc: 'Steam response error' } };
+        }
+    }
+
+}
+
+const Steam = new SteamBase();
+
+export default Steam;