From c23b5ec650c908dbdba85696eeb9faa200bfa959 Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Sun, 21 Jan 2018 17:11:09 +0300
Subject: [PATCH] Allow direct calls to Create*Chat without Get*.

GitOrigin-RevId: 89b5cd7b95f458c8b7b108c75d3d8c3664a25d0b
---
 td/telegram/MessagesManager.cpp | 30 ++++++++++++++++++++++++++++--
 td/telegram/MessagesManager.h   |  1 +
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/td/telegram/MessagesManager.cpp b/td/telegram/MessagesManager.cpp
index 57509e3e..a01aa5a8 100644
--- a/td/telegram/MessagesManager.cpp
+++ b/td/telegram/MessagesManager.cpp
@@ -4751,6 +4751,30 @@ bool MessagesManager::have_dialog_info(DialogId dialog_id) const {
   }
 }
 
+bool MessagesManager::have_dialog_info_force(DialogId dialog_id) const {
+  switch (dialog_id.get_type()) {
+    case DialogType::User: {
+      UserId user_id = dialog_id.get_user_id();
+      return td_->contacts_manager_->have_user_force(user_id);
+    }
+    case DialogType::Chat: {
+      ChatId chat_id = dialog_id.get_chat_id();
+      return td_->contacts_manager_->have_chat_force(chat_id);
+    }
+    case DialogType::Channel: {
+      ChannelId channel_id = dialog_id.get_channel_id();
+      return td_->contacts_manager_->have_channel_force(channel_id);
+    }
+    case DialogType::SecretChat: {
+      SecretChatId secret_chat_id = dialog_id.get_secret_chat_id();
+      return td_->contacts_manager_->have_secret_chat_force(secret_chat_id);
+    }
+    case DialogType::None:
+    default:
+      return false;
+  }
+}
+
 tl_object_ptr<telegram_api::inputEncryptedChat> MessagesManager::get_input_encrypted_chat(
     DialogId dialog_id, AccessRights access_rights) const {
   switch (dialog_id.get_type()) {
@@ -11344,10 +11368,12 @@ Status MessagesManager::set_dialog_client_data(DialogId dialog_id, string &&clie
 
 void MessagesManager::create_dialog(DialogId dialog_id, Promise<Unit> &&promise) {
   if (!have_input_peer(dialog_id, AccessRights::Read)) {
-    if (!have_dialog_info(dialog_id)) {
+    if (!have_dialog_info_force(dialog_id)) {
       return promise.set_error(Status::Error(6, "Chat info not found"));
     }
-    return promise.set_error(Status::Error(6, "Can't access the chat"));
+    if (!have_input_peer(dialog_id, AccessRights::Read)) {
+      return promise.set_error(Status::Error(6, "Can't access the chat"));
+    }
   }
 
   if (td_->auth_manager_->is_bot() || dialog_id.get_type() == DialogType::SecretChat) {
diff --git a/td/telegram/MessagesManager.h b/td/telegram/MessagesManager.h
index 64f7d5df..6f765bed 100644
--- a/td/telegram/MessagesManager.h
+++ b/td/telegram/MessagesManager.h
@@ -2117,6 +2117,7 @@ class MessagesManager : public Actor {
   tl_object_ptr<td_api::chat> get_chat_object(const Dialog *d);
 
   bool have_dialog_info(DialogId dialog_id) const;
+  bool have_dialog_info_force(DialogId dialog_id) const;
 
   Dialog *get_dialog(DialogId dialog_id);
   const Dialog *get_dialog(DialogId dialog_id) const;