sms forwarding better

apns.py

@@ -179,7 +179,12 @@ class APNSConnection:
 
         return self.token
 
+    old_topics = [] # Keep old topics so that we can add topics one by one
     def filter(self, topics: list[str]):
+        if topics == self.old_topics:
+            return
+        topics = list(set(topics + self.old_topics))
+        self.old_topics = topics
         logger.debug(f"Sending filter message with topics {topics}")
         fields = [(1, self.token)]
 

demo.py

@@ -22,11 +22,11 @@ logging.getLogger("py.warnings").setLevel(logging.ERROR) # Ignore warnings from
 logging.getLogger("asyncio").setLevel(logging.WARNING)
 logging.getLogger("jelly").setLevel(logging.INFO)
 logging.getLogger("nac").setLevel(logging.INFO)
-logging.getLogger("apns").setLevel(logging.DEBUG)
+logging.getLogger("apns").setLevel(logging.INFO)
 logging.getLogger("albert").setLevel(logging.INFO)
 logging.getLogger("ids").setLevel(logging.DEBUG)
 logging.getLogger("bags").setLevel(logging.INFO)
-logging.getLogger("imessage").setLevel(logging.DEBUG)
+logging.getLogger("imessage").setLevel(logging.INFO)
 
 logging.captureWarnings(True)
 
@@ -153,6 +153,8 @@ def fixup_handle(handle):
 current_participants = []
 current_effect = None
 while True:
+    if not im._received_activation_message:
+        im._activate_sms()
     msg = im.receive()
     if msg is not None:
         # print(f'[{msg.sender}] {msg.text}')

ids/query.py

@@ -30,6 +30,9 @@ def lookup(
         "x-id-self-uri": self_uri,
         "x-protocol-version": PROTOCOL_VERSION,
     }
+
+    if 'alloy' in topic:
+        headers["x-id-sub-service"] = topic # Hack, if it has alloy in the name it's probably a sub-service
     signing.add_id_signature(headers, body, BAG_KEY, id_keypair, push_token)
 
     msg_id = random.randbytes(16)

imessage.py

@@ -200,8 +200,9 @@ class iMessage:
 
         logger.debug(f"Decompressed message : {message}")
 
+        try:
             return iMessage(
-            text=message.get("t", ""),
+                text=message["t"], # Cause it to "fail to parse" if there isn't any good text to display, temp hack
                 xml=message.get("x"),
                 participants=message.get("p", []),
                 sender=sender if sender is not None else message.get("p", [])[-1] if "p" in message else None,
@@ -212,6 +213,10 @@ class iMessage:
                 _compressed=compressed,
                 _raw=message,
             )
+        except:
+            import json
+            dmp = json.dumps(message, indent=4)
+            return iMessage(text=f"failed to parse: {dmp}", _raw=message)
 
     def to_raw(self) -> bytes:
         """Convert an `iMessage` to raw message bytes"""
@@ -404,13 +409,13 @@ class iMessageUser:
 
     def _verify_payload(self, payload: bytes, sender: str, sender_token: str) -> bool:
         # Get the public key for the sender
-        self._cache_keys([sender])
+        self._cache_keys([sender], "com.apple.madrid")
 
         if not sender_token in self.KEY_CACHE:
             logger.warning("Unable to find the public key of the sender, cannot verify")
             return False
 
-        identity_keys = ids.identity.IDSIdentity.decode(self.KEY_CACHE[sender_token][0])
+        identity_keys = ids.identity.IDSIdentity.decode(self.KEY_CACHE[sender_token]["com.apple.madrid"][0])
         sender_ec_key = ids._helpers.parse_key(identity_keys.signing_public_key)
 
         payload = iMessageUser._parse_payload(payload)
@@ -450,12 +455,12 @@ class iMessageUser:
         return iMessage.from_raw(decrypted, body['sP'])
 
     KEY_CACHE_HANDLE: str = ""
-    KEY_CACHE: dict[bytes, tuple[bytes, bytes]] = {}
-    """Mapping of push token : (public key, session token)"""
+    KEY_CACHE: dict[bytes, dict[str, tuple[bytes, bytes]]] = {}
+    """Mapping of push token : topic : (public key, session token)"""
     USER_CACHE: dict[str, list[bytes]] = {}
     """Mapping of handle : [push tokens]"""
 
-    def _cache_keys(self, participants: list[str]):
+    def _cache_keys(self, participants: list[str], topic: str):
         # Clear the cache if the handle has changed
         if self.KEY_CACHE_HANDLE != self.user.current_handle:
             self.KEY_CACHE_HANDLE = self.user.current_handle
@@ -467,7 +472,7 @@ class iMessageUser:
             return
 
         # Look up the public keys for the participants, and cache a token : public key mapping
-        lookup = self.user.lookup(participants)
+        lookup = self.user.lookup(participants, topic=topic)
 
         for key, participant in lookup.items():
             if not key in self.USER_CACHE:
@@ -487,44 +492,126 @@ class iMessageUser:
 
                 # print(identity)
 
-                self.KEY_CACHE[identity["push-token"]] = (
+                if not identity["push-token"] in self.KEY_CACHE:
+                    self.KEY_CACHE[identity["push-token"]] = {}
+
+                self.KEY_CACHE[identity["push-token"]][topic] = (
                     identity["client-data"]["public-message-identity-key"],
                     identity["session-token"],
                 )
 
+
+    def _encode_multiple(self, participants: list[str], sender: str, topic="com.apple.madrid", to_encrypt: bytes | None = None,) -> list[dict]:
+        self._cache_keys(participants, topic)
+
+        out = []
+        for participant in participants:
+            for push_token in self.USER_CACHE[participant]:
+                if push_token == self.connection.token:
+                    continue # Don't send to ourselves
+
+                identity_keys = ids.identity.IDSIdentity.decode(
+                    self.KEY_CACHE[push_token][topic][0]
+                )
+
+                if to_encrypt != None:
+                    payload = self._encrypt_sign_payload(identity_keys, to_encrypt)
+                else:
+                    payload = None
+
+                p = {
+                    "tP": participant,
+                    "D": not participant == sender,
+                    "sT": self.KEY_CACHE[push_token][topic][1],
+                    "t": push_token,
+                }
+
+                if payload is not None:
+                    p["P"] = payload
+
+                logger.debug(f"Encoded payload : {p}")
+
+                out.append(p)
+
+        return out
+    
+    _received_activation_message: bool = False
+    
+    def _activate_sms(self) -> bool:
+        # Check if we have received an SMS forwarding activation message
+        if not self._received_activation_message:
+            # Check if it is in the queue
+            def check(x):
+                if x[0] != 0x0A:
+                    return False
+                if apns._get_field(x[1], 2) != sha1("com.apple.private.alloy.sms".encode()).digest():
+                    return False
+                resp_body = apns._get_field(x[1], 3)
+                if resp_body is None:
+                    return False
+                resp_body = plistlib.loads(resp_body)
+                if "c" not in resp_body or resp_body["c"] != 145:
+                    return False
+                return True
+            
+            payload = self.connection.incoming_queue.pop_find(check)
+            if payload is None:
+                return False
+            payload = apns._get_field(payload[1], 3)
+            payload = plistlib.loads(payload)
+            
+
+            dec = self._decrypt_payload(payload['P'])
+            # Try gzip decompression
+            try:
+                dec = gzip.decompress(dec)
+            except:
+                pass
+            dec = plistlib.loads(dec)
+            logger.debug(f"Think we got an SMS forwarding payload : {payload}")
+            logger.debug(f"Decrypted : {dec}")
+
+            self._received_activation_message = True
+
+        # Send out the activation message
+
+        msg_id = random.randbytes(4)
+        body = {
+            "fcn": 1,
+            "c": 147,
+            "ua": "[macOS,13.4.1,22F82,MacBookPro18,3]",
+            "U": uuid.uuid4().bytes,
+            "v": 8,
+            "i": int.from_bytes(msg_id, "big"),
+            "dtl": self._encode_multiple([self.user.current_handle], self.user.current_handle),
+            "nr": 1,
+            "sP": self.user.current_handle,
+        }
+
+        logger.debug(f"Sending activation message : {body}")
+
+        body = plistlib.dumps(body, fmt=plistlib.FMT_BINARY)
+
+        self.connection.send_message("com.apple.private.alloy.sms", body, msg_id)
+
+        #logger.debug(f"Sent activation message : {body}")
+
+        return True
+            
+
+
+
+
+
     def send(self, message: iMessage):
         # Set the sender, if it isn't already
         if message.sender is None:
             message.sender = self.user.handles[0]  # TODO : Which handle to use?
 
         message.sanity_check() # Sanity check MUST be called before caching keys, so that the sender is added to the list of participants
-        self._cache_keys(message.participants)
+        self._cache_keys(message.participants, "com.apple.madrid")
 
-        # Turn the message into a raw message
-        raw = message.to_raw()
-        import base64
-
-        bundled_payloads = []
-        for participant in message.participants:
-            for push_token in self.USER_CACHE[participant]:
-                if push_token == self.connection.token:
-                    continue # Don't send to ourselves
-
-                identity_keys = ids.identity.IDSIdentity.decode(
-                    self.KEY_CACHE[push_token][0]
-                )
-                payload = self._encrypt_sign_payload(identity_keys, raw)
-
-                bundled_payloads.append(
-                    {
-                        "tP": participant,
-                        "D": not participant
-                        == message.sender,  # TODO: Should this be false sometimes? For self messages?
-                        "sT": self.KEY_CACHE[push_token][1],
-                        "P": payload,
-                        "t": push_token,
-                    }
-                )
+        bundled_payloads = self._encode_multiple(message.participants, message.sender, message.to_raw())
 
         msg_id = random.randbytes(4)
         body = {