Update protobuf layout

SignalServiceKit/protobuf/SignalService.proto

@@ -378,6 +378,7 @@ message AttachmentPointer {
   optional uint32  width       = 9;
   optional uint32  height      = 10;
   optional string  caption     = 11;
+  optional string  url         = 101; // Loki
 }
 
 message GroupContext {

SignalServiceKit/src/Messages/Attachments/TSAttachmentStream.m

@@ -869,6 +869,8 @@ typedef void (^OWSLoadedThumbnailSuccess)(OWSLoadedThumbnail *loadedThumbnail);
             }
         }
     }
+    
+    builder.url = self.downloadURL;
 
     NSError *error;
     SSKProtoAttachmentPointer *_Nullable attachmentProto = [builder buildAndReturnError:&error];

SignalServiceKit/src/Protos/Generated/SSKProto.swift

@@ -5378,6 +5378,9 @@ extension SSKProtoSyncMessage.SSKProtoSyncMessageBuilder {
         if let _value = caption {
             builder.setCaption(_value)
         }
+        if let _value = url {
+            builder.setUrl(_value)
+        }
         return builder
     }
 
@@ -5437,6 +5440,10 @@ extension SSKProtoSyncMessage.SSKProtoSyncMessageBuilder {
             proto.caption = valueParam
         }
 
+        @objc public func setUrl(_ valueParam: String) {
+            proto.url = valueParam
+        }
+
         @objc public func build() throws -> SSKProtoAttachmentPointer {
             return try SSKProtoAttachmentPointer.parseProto(proto)
         }
@@ -5538,6 +5545,16 @@ extension SSKProtoSyncMessage.SSKProtoSyncMessageBuilder {
         return proto.hasCaption
     }
 
+    @objc public var url: String? {
+        guard proto.hasURL else {
+            return nil
+        }
+        return proto.url
+    }
+    @objc public var hasURL: Bool {
+        return proto.hasURL
+    }
+
     private init(proto: SignalServiceProtos_AttachmentPointer,
                  id: UInt64) {
         self.proto = proto

SignalServiceKit/src/Protos/Generated/SignalService.pb.swift

@@ -2200,6 +2200,16 @@ struct SignalServiceProtos_AttachmentPointer {
   /// Clears the value of `caption`. Subsequent reads from it will return its default value.
   mutating func clearCaption() {self._caption = nil}
 
+  /// Loki
+  var url: String {
+    get {return _url ?? String()}
+    set {_url = newValue}
+  }
+  /// Returns true if `url` has been explicitly set.
+  var hasURL: Bool {return self._url != nil}
+  /// Clears the value of `url`. Subsequent reads from it will return its default value.
+  mutating func clearURL() {self._url = nil}
+
   var unknownFields = SwiftProtobuf.UnknownStorage()
 
   enum Flags: SwiftProtobuf.Enum {
@@ -2238,6 +2248,7 @@ struct SignalServiceProtos_AttachmentPointer {
   fileprivate var _width: UInt32? = nil
   fileprivate var _height: UInt32? = nil
   fileprivate var _caption: String? = nil
+  fileprivate var _url: String? = nil
 }
 
 #if swift(>=4.2)
@@ -4811,6 +4822,7 @@ extension SignalServiceProtos_AttachmentPointer: SwiftProtobuf.Message, SwiftPro
     9: .same(proto: "width"),
     10: .same(proto: "height"),
     11: .same(proto: "caption"),
+    101: .same(proto: "url"),
   ]
 
   mutating func decodeMessage<D: SwiftProtobuf.Decoder>(decoder: inout D) throws {
@@ -4827,6 +4839,7 @@ extension SignalServiceProtos_AttachmentPointer: SwiftProtobuf.Message, SwiftPro
       case 9: try decoder.decodeSingularUInt32Field(value: &self._width)
       case 10: try decoder.decodeSingularUInt32Field(value: &self._height)
       case 11: try decoder.decodeSingularStringField(value: &self._caption)
+      case 101: try decoder.decodeSingularStringField(value: &self._url)
       default: break
       }
     }
@@ -4866,6 +4879,9 @@ extension SignalServiceProtos_AttachmentPointer: SwiftProtobuf.Message, SwiftPro
     if let v = self._caption {
       try visitor.visitSingularStringField(value: v, fieldNumber: 11)
     }
+    if let v = self._url {
+      try visitor.visitSingularStringField(value: v, fieldNumber: 101)
+    }
     try unknownFields.traverse(visitor: &visitor)
   }
 
@@ -4881,6 +4897,7 @@ extension SignalServiceProtos_AttachmentPointer: SwiftProtobuf.Message, SwiftPro
     if lhs._width != rhs._width {return false}
     if lhs._height != rhs._height {return false}
     if lhs._caption != rhs._caption {return false}
+    if lhs._url != rhs._url {return false}
     if lhs.unknownFields != rhs.unknownFields {return false}
     return true
   }