Add message.can_get_media_timestamp_links.

td/generate/scheme/td_api.tl

@@ -759,6 +759,7 @@ messageSendingStateFailed error_code:int32 error_message:string can_retry:Bool r
 //@can_be_deleted_for_all_users True, if the message can be deleted for all users
 //@can_get_statistics True, if the message statistics are available
 //@can_get_message_thread True, if the message thread info is available
+//@can_get_media_timestamp_links True, if media timestamp links can be generated for media timestamp entities in the message text, caption or web page description
 //@is_channel_post True, if the message is a channel post. All messages to channels are channel posts, all other messages are not channel posts
 //@contains_unread_mention True, if the message contains an unread mention for the current user
 //@date Point in time (Unix timestamp) when the message was sent
@@ -776,7 +777,7 @@ messageSendingStateFailed error_code:int32 error_message:string can_retry:Bool r
 //@restriction_reason If non-empty, contains a human-readable description of the reason why access to this message must be restricted
 //@content Content of the message
 //@reply_markup Reply markup for the message; may be null
-message id:int53 sender:MessageSender chat_id:int53 sending_state:MessageSendingState scheduling_state:MessageSchedulingState is_outgoing:Bool is_pinned:Bool can_be_edited:Bool can_be_forwarded:Bool can_be_deleted_only_for_self:Bool can_be_deleted_for_all_users:Bool can_get_statistics:Bool can_get_message_thread:Bool is_channel_post:Bool contains_unread_mention:Bool date:int32 edit_date:int32 forward_info:messageForwardInfo interaction_info:messageInteractionInfo reply_in_chat_id:int53 reply_to_message_id:int53 message_thread_id:int53 ttl:int32 ttl_expires_in:double via_bot_user_id:int32 author_signature:string media_album_id:int64 restriction_reason:string content:MessageContent reply_markup:ReplyMarkup = Message;
+message id:int53 sender:MessageSender chat_id:int53 sending_state:MessageSendingState scheduling_state:MessageSchedulingState is_outgoing:Bool is_pinned:Bool can_be_edited:Bool can_be_forwarded:Bool can_be_deleted_only_for_self:Bool can_be_deleted_for_all_users:Bool can_get_statistics:Bool can_get_message_thread:Bool can_get_media_timestamp_links:Bool is_channel_post:Bool contains_unread_mention:Bool date:int32 edit_date:int32 forward_info:messageForwardInfo interaction_info:messageInteractionInfo reply_in_chat_id:int53 reply_to_message_id:int53 message_thread_id:int53 ttl:int32 ttl_expires_in:double via_bot_user_id:int32 author_signature:string media_album_id:int64 restriction_reason:string content:MessageContent reply_markup:ReplyMarkup = Message;
 
 //@description Contains a list of messages @total_count Approximate total count of messages found @messages List of messages; messages may be null
 messages total_count:int32 messages:vector<message> = Messages;
@@ -4172,7 +4173,7 @@ removeNotification notification_group_id:int32 notification_id:int32 = Ok;
 removeNotificationGroup notification_group_id:int32 max_notification_id:int32 = Ok;
 
 
-//@description Returns an HTTPS link to a message in a chat. Available only for already sent messages in supergroups and channels. This is an offline request
+//@description Returns an HTTPS link to a message in a chat. Available only for already sent messages in supergroups and channels, or if message.can_get_media_timestamp_links and a media timestamp link is generated. This is an offline request
 //@chat_id Identifier of the chat to which the message belongs
 //@message_id Identifier of the message
 //@media_timestamp If not 0, timestamp from which the video/audio/video note/voice note playing should start, in seconds. The media can be in the message content or in its web page preview

td/telegram/MessagesManager.cpp

@@ -696,7 +696,9 @@ class ExportChannelMessageLinkQuery final : public Td::ResultHandler {
     for_group_ = for_group;
     ignore_result_ = ignore_result;
     auto input_channel = td->contacts_manager_->get_input_channel(channel_id);
-    CHECK(input_channel != nullptr);
+    if (input_channel == nullptr) {
+      return on_error(0, Status::Error(400, "Can't access the chat"));
+    }
     int32 flags = 0;
     if (for_group) {
       flags |= telegram_api::channels_exportMessageLink::GROUPED_MASK;
@@ -17294,6 +17296,35 @@ bool MessagesManager::is_message_edited_recently(FullMessageId full_message_id,
   return m->edit_date >= G()->unix_time() - seconds;
 }
 
+Status MessagesManager::can_get_media_timestamp_link(DialogId dialog_id, const Message *m) {
+  if (m == nullptr) {
+    return Status::Error(400, "Message not found");
+  }
+
+  if (dialog_id.get_type() != DialogType::Channel) {
+    auto forward_info = m->forward_info.get();
+    if (!can_message_content_have_media_timestamp(m->content.get()) || forward_info == nullptr ||
+        forward_info->is_imported || is_forward_info_sender_hidden(forward_info) ||
+        !forward_info->message_id.is_valid() || !m->forward_info->message_id.is_server() ||
+        !forward_info->sender_dialog_id.is_valid() ||
+        forward_info->sender_dialog_id.get_type() != DialogType::Channel) {
+      return Status::Error(400, "Message links are available only for messages in supergroups and channel chats");
+    }
+    return Status::OK();
+  }
+
+  if (m->message_id.is_yet_unsent()) {
+    return Status::Error(400, "Message is not sent yet");
+  }
+  if (m->message_id.is_scheduled()) {
+    return Status::Error(400, "Message is scheduled");
+  }
+  if (!m->message_id.is_server()) {
+    return Status::Error(400, "Message is local");
+  }
+  return Status::OK();
+}
+
 Result<std::pair<string, bool>> MessagesManager::get_message_link(FullMessageId full_message_id, int32 media_timestamp,
                                                                   bool for_group, bool for_comment) {
   auto dialog_id = full_message_id.get_dialog_id();
@@ -17304,26 +17335,23 @@ Result<std::pair<string, bool>> MessagesManager::get_message_link(FullMessageId
   if (!have_input_peer(dialog_id, AccessRights::Read)) {
     return Status::Error(400, "Can't access the chat");
   }
-  if (dialog_id.get_type() != DialogType::Channel) {
-    return Status::Error(400, "Public message links are available only for messages in supergroups and channel chats");
-  }
 
   auto *m = get_message_force(d, full_message_id.get_message_id(), "get_message_link");
-  if (m == nullptr) {
+  TRY_STATUS(can_get_media_timestamp_link(dialog_id, m));
-    return Status::Error(400, "Message not found");
+  auto message_id = m->message_id;
-  }
+  if (dialog_id.get_type() != DialogType::Channel) {
-  if (m->message_id.is_yet_unsent()) {
+    CHECK(m != nullptr);
-    return Status::Error(400, "Message is not sent yet");
+    CHECK(m->forward_info != nullptr);
-  }
+    CHECK(m->forward_info->sender_dialog_id.get_type() == DialogType::Channel);
-  if (m->message_id.is_scheduled()) {
-    return Status::Error(400, "Message is scheduled");
-  }
-  if (!m->message_id.is_server()) {
-    return Status::Error(400, "Message is local");
-  }
 
-  if (m->media_album_id == 0) {
+    dialog_id = m->forward_info->sender_dialog_id;
-    for_group = true;  // default is true
+    message_id = m->forward_info->message_id;
+    for_group = false;
+    for_comment = false;
+  } else {
+    if (m->media_album_id == 0) {
+      for_group = true;  // default is true
+    }
   }
 
   if (!m->top_thread_message_id.is_valid() || !m->top_thread_message_id.is_server()) {
@@ -17340,6 +17368,7 @@ Result<std::pair<string, bool>> MessagesManager::get_message_link(FullMessageId
     media_timestamp = 0;
   }
   if (media_timestamp != 0) {
+    for_group = false;
     auto duration = get_message_content_duration(m->content.get(), td_);
     if (duration != 0 && media_timestamp > duration) {
       media_timestamp = 0;
@@ -17348,7 +17377,7 @@ Result<std::pair<string, bool>> MessagesManager::get_message_link(FullMessageId
 
   if (!td_->auth_manager_->is_bot()) {
     td_->create_handler<ExportChannelMessageLinkQuery>(Promise<Unit>())
-        ->send(dialog_id.get_channel_id(), m->message_id, for_group, true);
+        ->send(dialog_id.get_channel_id(), message_id, for_group, true);
   }
 
   SliceBuilder sb;
@@ -17368,7 +17397,7 @@ Result<std::pair<string, bool>> MessagesManager::get_message_link(FullMessageId
           linked_message_id.is_server() && have_input_peer(linked_dialog_id, AccessRights::Read) &&
           !channel_username.empty()) {
         sb << channel_username << '/' << linked_message_id.get_server_message_id().get()
-           << "?comment=" << m->message_id.get_server_message_id().get();
+           << "?comment=" << message_id.get_server_message_id().get();
         if (!for_group) {
           sb << "&single";
         }
@@ -17384,8 +17413,7 @@ Result<std::pair<string, bool>> MessagesManager::get_message_link(FullMessageId
   bool is_public = !dialog_username.empty();
   if (m->content->get_type() == MessageContentType::VideoNote && is_broadcast_channel(dialog_id) && is_public) {
     return std::make_pair(
-        PSTRING() << "https://telesco.pe/" << dialog_username << '/' << m->message_id.get_server_message_id().get(),
+        PSTRING() << "https://telesco.pe/" << dialog_username << '/' << message_id.get_server_message_id().get(), true);
-        true);
   }
 
   if (is_public) {
@@ -17393,7 +17421,7 @@ Result<std::pair<string, bool>> MessagesManager::get_message_link(FullMessageId
   } else {
     sb << "c/" << dialog_id.get_channel_id().get();
   }
-  sb << '/' << m->message_id.get_server_message_id().get();
+  sb << '/' << message_id.get_server_message_id().get();
 
   char separator = '?';
   if (for_comment) {
@@ -22800,6 +22828,7 @@ tl_object_ptr<td_api::message> MessagesManager::get_message_object(DialogId dial
   bool can_be_forwarded = for_event_log ? false : can_forward_message(dialog_id, m);
   bool can_get_statistics = for_event_log ? false : can_get_message_statistics(dialog_id, m);
   bool can_get_message_thread = for_event_log ? false : get_top_thread_full_message_id(dialog_id, m).is_ok();
+  bool can_get_media_timestamp_links = for_event_log ? false : can_get_media_timestamp_link(dialog_id, m).is_ok();
   auto via_bot_user_id = td_->contacts_manager_->get_user_id_object(m->via_bot_user_id, "via_bot_user_id");
   auto media_album_id = for_event_log ? static_cast<int64>(0) : m->media_album_id;
   auto reply_to_message_id = for_event_log ? static_cast<int64>(0) : m->reply_to_message_id.get();
@@ -22817,10 +22846,10 @@ tl_object_ptr<td_api::message> MessagesManager::get_message_object(DialogId dial
       m->message_id.get(), get_message_sender_object_const(m->sender_user_id, m->sender_dialog_id, source.c_str()),
       dialog_id.get(), std::move(sending_state), std::move(scheduling_state), is_outgoing, is_pinned, can_be_edited,
       can_be_forwarded, can_delete_for_self, can_delete_for_all_users, can_get_statistics, can_get_message_thread,
-      m->is_channel_post, contains_unread_mention, date, edit_date, get_message_forward_info_object(m->forward_info),
+      can_get_media_timestamp_links, m->is_channel_post, contains_unread_mention, date, edit_date,
-      get_message_interaction_info_object(dialog_id, m), reply_in_dialog_id.get(), reply_to_message_id,
+      get_message_forward_info_object(m->forward_info), get_message_interaction_info_object(dialog_id, m),
-      top_thread_message_id, ttl, ttl_expires_in, via_bot_user_id, m->author_signature, media_album_id,
+      reply_in_dialog_id.get(), reply_to_message_id, top_thread_message_id, ttl, ttl_expires_in, via_bot_user_id,
-      get_restriction_reason_description(m->restriction_reasons),
+      m->author_signature, media_album_id, get_restriction_reason_description(m->restriction_reasons),
       get_message_content_object(m->content.get(), td_, dialog_id, live_location_date, m->is_content_secret,
                                  skip_bot_commands),
       get_reply_markup_object(m->reply_markup));

td/telegram/MessagesManager.h

@@ -1776,6 +1776,8 @@ class MessagesManager final : public Actor {
 
   Status can_pin_messages(DialogId dialog_id) const;
 
+  static Status can_get_media_timestamp_link(DialogId dialog_id, const Message *m);
+
   void cancel_edit_message_media(DialogId dialog_id, Message *m, Slice error_message);
 
   void on_message_media_edited(DialogId dialog_id, MessageId message_id, FileId file_id, FileId thumbnail_file_id,

td/telegram/WebPagesManager.cpp

@@ -1185,7 +1185,7 @@ tl_object_ptr<td_api::webPage> WebPagesManager::get_web_page_object(WebPageId we
 
   FormattedText description;
   description.text = web_page->description;
-  description.entities = find_entities(web_page->description, true, true);
+  description.entities = find_entities(web_page->description, true, false);
 
   auto r_url = parse_url(web_page->display_url);
   if (r_url.is_ok()) {