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src/storage/d1.ts

@@ -29,6 +29,7 @@ export class D1Storage implements Storage {
         created_at INTEGER NOT NULL,
         expires_at INTEGER NOT NULL,
         last_seen INTEGER NOT NULL,
+        secret TEXT,
         answerer_peer_id TEXT,
         answer_sdp TEXT,
         answered_at INTEGER
@@ -75,9 +76,9 @@ export class D1Storage implements Storage {
 
       // Insert offer
       await this.db.prepare(`
-        INSERT INTO offers (id, peer_id, sdp, created_at, expires_at, last_seen)
-        VALUES (?, ?, ?, ?, ?, ?)
-      `).bind(id, offer.peerId, offer.sdp, now, offer.expiresAt, now).run();
+        INSERT INTO offers (id, peer_id, sdp, created_at, expires_at, last_seen, secret)
+        VALUES (?, ?, ?, ?, ?, ?, ?)
+      `).bind(id, offer.peerId, offer.sdp, now, offer.expiresAt, now, offer.secret || null).run();
 
       // Insert topics
       for (const topic of offer.topics) {
@@ -95,6 +96,7 @@ export class D1Storage implements Storage {
         createdAt: now,
         expiresAt: offer.expiresAt,
         lastSeen: now,
+        secret: offer.secret,
       });
     }
 
@@ -175,7 +177,8 @@ export class D1Storage implements Storage {
   async answerOffer(
     offerId: string,
     answererPeerId: string,
-    answerSdp: string
+    answerSdp: string,
+    secret?: string
   ): Promise<{ success: boolean; error?: string }> {
     // Check if offer exists and is not expired
     const offer = await this.getOfferById(offerId);
@@ -187,6 +190,14 @@ export class D1Storage implements Storage {
       };
     }
 
+    // Verify secret if offer is protected
+    if (offer.secret && offer.secret !== secret) {
+      return {
+        success: false,
+        error: 'Invalid or missing secret'
+      };
+    }
+
     // Check if offer already has an answerer
     if (offer.answererPeerId) {
       return {
@@ -374,6 +385,7 @@ export class D1Storage implements Storage {
       createdAt: row.created_at,
       expiresAt: row.expires_at,
       lastSeen: row.last_seen,
+      secret: row.secret || undefined,
       answererPeerId: row.answerer_peer_id || undefined,
       answerSdp: row.answer_sdp || undefined,
       answeredAt: row.answered_at || undefined,

src/storage/sqlite.ts

@@ -30,6 +30,7 @@ export class SQLiteStorage implements Storage {
         created_at INTEGER NOT NULL,
         expires_at INTEGER NOT NULL,
         last_seen INTEGER NOT NULL,
+        secret TEXT,
         answerer_peer_id TEXT,
         answer_sdp TEXT,
         answered_at INTEGER
@@ -83,8 +84,8 @@ export class SQLiteStorage implements Storage {
     // Use transaction for atomic creation
     const transaction = this.db.transaction((offersWithIds: (CreateOfferRequest & { id: string })[]) => {
       const offerStmt = this.db.prepare(`
-        INSERT INTO offers (id, peer_id, sdp, created_at, expires_at, last_seen)
-        VALUES (?, ?, ?, ?, ?, ?)
+        INSERT INTO offers (id, peer_id, sdp, created_at, expires_at, last_seen, secret)
+        VALUES (?, ?, ?, ?, ?, ?, ?)
       `);
 
       const topicStmt = this.db.prepare(`
@@ -102,7 +103,8 @@ export class SQLiteStorage implements Storage {
           offer.sdp,
           now,
           offer.expiresAt,
-          now
+          now,
+          offer.secret || null
         );
 
         // Insert topics
@@ -118,6 +120,7 @@ export class SQLiteStorage implements Storage {
           createdAt: now,
           expiresAt: offer.expiresAt,
           lastSeen: now,
+          secret: offer.secret,
         });
       }
     });
@@ -195,7 +198,8 @@ export class SQLiteStorage implements Storage {
   async answerOffer(
     offerId: string,
     answererPeerId: string,
-    answerSdp: string
+    answerSdp: string,
+    secret?: string
   ): Promise<{ success: boolean; error?: string }> {
     // Check if offer exists and is not expired
     const offer = await this.getOfferById(offerId);
@@ -207,6 +211,14 @@ export class SQLiteStorage implements Storage {
       };
     }
 
+    // Verify secret if offer is protected
+    if (offer.secret && offer.secret !== secret) {
+      return {
+        success: false,
+        error: 'Invalid or missing secret'
+      };
+    }
+
     // Check if offer already has an answerer
     if (offer.answererPeerId) {
       return {
@@ -382,6 +394,7 @@ export class SQLiteStorage implements Storage {
       createdAt: row.created_at,
       expiresAt: row.expires_at,
       lastSeen: row.last_seen,
+      secret: row.secret || undefined,
       answererPeerId: row.answerer_peer_id || undefined,
       answerSdp: row.answer_sdp || undefined,
       answeredAt: row.answered_at || undefined,

src/storage/types.ts

@@ -9,6 +9,7 @@ export interface Offer {
   createdAt: number;
   expiresAt: number;
   lastSeen: number;
+  secret?: string;
   answererPeerId?: string;
   answerSdp?: string;
   answeredAt?: number;
@@ -44,6 +45,7 @@ export interface CreateOfferRequest {
   sdp: string;
   topics: string[];
   expiresAt: number;
+  secret?: string;
 }
 
 /**
@@ -100,9 +102,10 @@ export interface Storage {
    * @param offerId Offer identifier
    * @param answererPeerId Answerer's peer ID
    * @param answerSdp WebRTC answer SDP
+   * @param secret Optional secret for protected offers
    * @returns Success status and optional error message
    */
-  answerOffer(offerId: string, answererPeerId: string, answerSdp: string): Promise<{
+  answerOffer(offerId: string, answererPeerId: string, answerSdp: string, secret?: string): Promise<{
     success: boolean;
     error?: string;
   }>;