From 175da716bbd3e8d4619a47a9fb9048acdd3f849c Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Fri, 25 Jan 2019 17:44:47 +0300
Subject: [PATCH] Do not allow to set invalid file referene from server.

GitOrigin-RevId: aabcdd17500097c931a146a61236865f96d759ca
---
 td/telegram/files/FileLocation.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/td/telegram/files/FileLocation.h b/td/telegram/files/FileLocation.h
index 033f0619f..6f7678396 100644
--- a/td/telegram/files/FileLocation.h
+++ b/td/telegram/files/FileLocation.h
@@ -513,6 +513,10 @@ class FullRemoteFileLocation {
       , file_reference_(std::move(file_reference))
       , variant_(PhotoRemoteFileLocation{id, access_hash, volume_id, secret, local_id}) {
     CHECK(is_photo());
+    if (file_reference_ == invalid_file_reference()) {
+      LOG(ERROR) << "Tried to register file with invalid file reference";
+      file_reference_.clear();
+    }
   }
   FullRemoteFileLocation(FileType file_type, int64 id, int64 access_hash, DcId dc_id, std::string file_reference)
       : file_type_(file_type)
@@ -520,6 +524,10 @@ class FullRemoteFileLocation {
       , file_reference_(std::move(file_reference))
       , variant_(CommonRemoteFileLocation{id, access_hash}) {
     CHECK(is_common());
+    if (file_reference_ == invalid_file_reference()) {
+      LOG(ERROR) << "Tried to register file with invalid file reference";
+      file_reference_.clear();
+    }
   }
   FullRemoteFileLocation(FileType file_type, string url, int64 access_hash)
       : file_type_(file_type)