feat(api-token-manager): seed and rotate the environment-managed admin API token during initialization

ts/config/classes.api-token-manager.ts

@@ -9,6 +9,8 @@ import type {
 } from '../../ts_interfaces/data/route-management.js';
 
 const TOKEN_PREFIX_STR = 'dcr_';
+const ENV_ADMIN_TOKEN_ID = 'env-admin-token';
+const ENV_ADMIN_TOKEN_CREATED_BY = 'dcrouter-env';
 
 export class ApiTokenManager {
   private tokens = new Map<string, IStoredApiToken>();
@@ -17,6 +19,7 @@ export class ApiTokenManager {
 
   public async initialize(): Promise<void> {
     await this.loadTokens();
+    await this.ensureEnvAdminToken();
     if (this.tokens.size > 0) {
       logger.log('info', `Loaded ${this.tokens.size} API token(s) from storage`);
     }
@@ -41,7 +44,7 @@ export class ApiTokenManager {
     const rawPayload = `${id}:${randomBytes.toString('base64url')}`;
     const rawToken = `${TOKEN_PREFIX_STR}${rawPayload}`;
 
-    const tokenHash = plugins.crypto.createHash('sha256').update(rawToken).digest('hex');
+    const tokenHash = this.hashToken(rawToken);
 
     const now = Date.now();
     const stored: IStoredApiToken = {
@@ -70,7 +73,7 @@ export class ApiTokenManager {
   public async validateToken(rawToken: string): Promise<IStoredApiToken | null> {
     if (!rawToken.startsWith(TOKEN_PREFIX_STR)) return null;
 
-    const hash = plugins.crypto.createHash('sha256').update(rawToken).digest('hex');
+    const hash = this.hashToken(rawToken);
 
     for (const stored of this.tokens.values()) {
       if (stored.tokenHash === hash) {
@@ -162,7 +165,7 @@ export class ApiTokenManager {
     const rawPayload = `${id}:${randomBytes.toString('base64url')}`;
     const rawToken = `${TOKEN_PREFIX_STR}${rawPayload}`;
 
-    stored.tokenHash = plugins.crypto.createHash('sha256').update(rawToken).digest('hex');
+    stored.tokenHash = this.hashToken(rawToken);
     await this.persistToken(stored);
     logger.log('info', `API token '${stored.name}' rolled (id: ${id})`);
     return { id, rawToken };
@@ -204,6 +207,41 @@ export class ApiTokenManager {
     }
   }
 
+  private async ensureEnvAdminToken(): Promise<void> {
+    const rawToken = process.env.DCROUTER_ADMIN_API_TOKEN?.trim();
+    if (!rawToken) return;
+
+    if (!rawToken.startsWith(TOKEN_PREFIX_STR)) {
+      throw new Error(`DCROUTER_ADMIN_API_TOKEN must start with ${TOKEN_PREFIX_STR}`);
+    }
+    if (rawToken.length < TOKEN_PREFIX_STR.length + 32) {
+      throw new Error('DCROUTER_ADMIN_API_TOKEN is too short');
+    }
+
+    const now = Date.now();
+    const existing = this.tokens.get(ENV_ADMIN_TOKEN_ID);
+    const stored: IStoredApiToken = {
+      id: ENV_ADMIN_TOKEN_ID,
+      name: process.env.DCROUTER_ADMIN_API_TOKEN_NAME?.trim() || 'Environment Admin Token',
+      tokenHash: this.hashToken(rawToken),
+      scopes: ['*'],
+      policy: { role: 'admin' },
+      createdAt: existing?.createdAt || now,
+      expiresAt: null,
+      lastUsedAt: existing?.lastUsedAt || null,
+      createdBy: existing?.createdBy || ENV_ADMIN_TOKEN_CREATED_BY,
+      enabled: true,
+    };
+
+    this.tokens.set(stored.id, stored);
+    await this.persistToken(stored);
+    logger.log('info', `Environment admin API token ensured (id: ${stored.id})`);
+  }
+
+  private hashToken(rawToken: string): string {
+    return plugins.crypto.createHash('sha256').update(rawToken).digest('hex');
+  }
+
   private async persistToken(stored: IStoredApiToken): Promise<void> {
     const existing = await ApiTokenDoc.findById(stored.id);
     if (existing) {