Implement receiving quotes in group chats

Signal/src/Loki/LokiGroupChatPoller.swift

@@ -56,6 +56,11 @@ public final class LokiGroupChatPoller : NSObject {
             let x2 = SSKProtoDataMessage.builder()
             x2.setTimestamp(message.timestamp)
             x2.setGroup(try! x1.build())
+            if let quote = message.quote {
+                let x5 = SSKProtoDataMessageQuote.builder(id: quote.quotedMessageTimestamp, author: quote.quoteeHexEncodedPublicKey)
+                x5.setText(quote.quotedMessageBody)
+                x2.setQuote(try! x5.build())
+            }
             x2.setBody(message.body)
             if let messageServerID = message.serverID {
                 let publicChatInfo = SSKProtoPublicChatInfo.builder()
@@ -68,7 +73,6 @@ public final class LokiGroupChatPoller : NSObject {
             x4.setSource(senderHexEncodedPublicKey)
             x4.setSourceDevice(OWSDevicePrimaryDeviceId)
             x4.setContent(try! x3.build().serializedData())
-        
             let storage = OWSPrimaryStorage.shared()
             storage.dbReadWriteConnection.readWrite { transaction in
                 transaction.setObject(senderDisplayName, forKey: senderHexEncodedPublicKey, inCollection: group.id)

SignalServiceKit/src/Loki/API/LokiGroupChatAPI.swift

@@ -139,6 +139,8 @@ public final class LokiGroupChatAPI : NSObject {
                 throw Error.parsingFailed
             }
             return rawMessages.flatMap { message in
+                let isDeleted = (message["is_deleted"] as? Int == 1)
+                guard !isDeleted else { return nil }
                 guard let annotations = message["annotations"] as? [JSON], let annotation = annotations.first, let value = annotation["value"] as? JSON,
                     let serverID = message["id"] as? UInt64, let body = message["text"] as? String, let hexEncodedPublicKey = value["source"] as? String, let displayName = value["from"] as? String,
                     let timestamp = value["timestamp"] as? UInt64 else {
@@ -147,7 +149,13 @@ public final class LokiGroupChatAPI : NSObject {
                 }
                 let lastMessageServerID = getLastMessageServerID(for: group, on: server)
                 if serverID > (lastMessageServerID ?? 0) { setLastMessageServerID(for: group, on: server, to: serverID) }
-                return LokiGroupMessage(serverID: serverID, hexEncodedPublicKey: hexEncodedPublicKey, displayName: displayName, body: body, type: publicChatMessageType, timestamp: timestamp)
+                let quote: LokiGroupMessage.Quote?
+                if let quoteAsJSON = value["quote"] as? JSON, let quotedMessageTimestamp = quoteAsJSON["id"] as? UInt64, let quoteeHexEncodedPublicKey = quoteAsJSON["author"] as? String, let quotedMessageBody = quoteAsJSON["text"] as? String {
+                    quote = LokiGroupMessage.Quote(quotedMessageTimestamp: quotedMessageTimestamp, quoteeHexEncodedPublicKey: quoteeHexEncodedPublicKey, quotedMessageBody: quotedMessageBody)
+                } else {
+                    quote = nil
+                }
+                return LokiGroupMessage(serverID: serverID, hexEncodedPublicKey: hexEncodedPublicKey, displayName: displayName, body: body, type: publicChatMessageType, timestamp: timestamp, quote: quote)
             }
         }
     }
@@ -170,7 +178,8 @@ public final class LokiGroupChatAPI : NSObject {
                     throw Error.parsingFailed
                 }
                 let timestamp = UInt64(date.timeIntervalSince1970) * 1000
-                return LokiGroupMessage(serverID: serverID, hexEncodedPublicKey: userHexEncodedPublicKey, displayName: displayName, body: body, type: publicChatMessageType, timestamp: timestamp)
+                let quote: LokiGroupMessage.Quote?
+                return LokiGroupMessage(serverID: serverID, hexEncodedPublicKey: userHexEncodedPublicKey, displayName: displayName, body: body, type: publicChatMessageType, timestamp: timestamp, quote: nil)
             }
         }.recover { error -> Promise<LokiGroupMessage> in
             if let error = error as? NetworkManagerError, error.statusCode == 401 {

SignalServiceKit/src/Loki/API/LokiGroupMessage.swift

@@ -9,22 +9,30 @@ public final class LokiGroupMessage : NSObject {
     /// - Note: Expressed as milliseconds since 00:00:00 UTC on 1 January 1970.
     public let timestamp: UInt64
     public let type: String
+    public let quote: Quote?
     
     @objc(serverID)
     public var objc_serverID: UInt64 { return serverID ?? 0 }
     
-    public init(serverID: UInt64?, hexEncodedPublicKey: String, displayName: String, body: String, type: String, timestamp: UInt64) {
+    public struct Quote {
+        public let quotedMessageTimestamp: UInt64
+        public let quoteeHexEncodedPublicKey: String
+        public let quotedMessageBody: String
+    }
+    
+    public init(serverID: UInt64?, hexEncodedPublicKey: String, displayName: String, body: String, type: String, timestamp: UInt64, quote: Quote?) {
         self.serverID = serverID
         self.hexEncodedPublicKey = hexEncodedPublicKey
         self.displayName = displayName
         self.body = body
         self.type = type
         self.timestamp = timestamp
+        self.quote = quote
         super.init()
     }
     
     @objc public convenience init(hexEncodedPublicKey: String, displayName: String, body: String, type: String, timestamp: UInt64) {
-        self.init(serverID: nil, hexEncodedPublicKey: hexEncodedPublicKey, displayName: displayName, body: body, type: type, timestamp: timestamp)
+        self.init(serverID: nil, hexEncodedPublicKey: hexEncodedPublicKey, displayName: displayName, body: body, type: type, timestamp: timestamp, quote: nil)
     }
     
     internal func toJSON() -> JSON {

SignalServiceKit/src/Messages/Interactions/TSQuotedMessage.m

@@ -157,7 +157,7 @@ NS_ASSUME_NONNULL_BEGIN
         }
     }
 
-    OWSAssertDebug(bodySource != TSQuotedMessageContentSourceUnknown);
+    // OWSAssertDebug(bodySource != TSQuotedMessageContentSourceUnknown);
 
     NSMutableArray<OWSAttachmentInfo *> *attachmentInfos = [NSMutableArray new];
     for (SSKProtoDataMessageQuoteQuotedAttachment *quotedAttachment in quoteProto.attachments) {