tdlight/td/telegram/WebPagesManager.h

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once
#include "td/telegram/td_api.h"
#include "td/telegram/telegram_api.h"
#include "td/telegram/DialogId.h"
#include "td/telegram/files/FileId.h"
#include "td/telegram/MessageId.h"
#include "td/telegram/Photo.h"
#include "td/telegram/WebPageId.h"
#include "td/actor/actor.h"
#include "td/actor/PromiseFuture.h"
#include "td/actor/Timeout.h"
#include "td/db/binlog/BinlogEvent.h"
#include "td/utils/common.h"
#include "td/utils/Status.h"
#include <unordered_map>
#include <unordered_set>
namespace td {
class Td;
class WebPagesManager : public Actor {
public:
WebPagesManager(Td *td, ActorShared<> parent);
WebPagesManager(const WebPagesManager &) = delete;
WebPagesManager &operator=(const WebPagesManager &) = delete;
WebPagesManager(WebPagesManager &&) = delete;
WebPagesManager &operator=(WebPagesManager &&) = delete;
~WebPagesManager() override;
WebPageId on_get_web_page(tl_object_ptr<telegram_api::WebPage> &&web_page_ptr, DialogId owner_dialog_id);
void on_get_web_page_by_url(const string &url, WebPageId web_page_id, bool from_database);
void wait_for_pending_web_page(DialogId dialog_id, MessageId message_id, WebPageId web_page_id);
bool have_web_page(WebPageId web_page_id) const;
bool have_web_page_force(WebPageId web_page_id);
tl_object_ptr<td_api::webPage> get_web_page_object(WebPageId web_page_id) const;
tl_object_ptr<td_api::webPageInstantView> get_web_page_instant_view_object(WebPageId web_page_id) const;
WebPageId get_web_page_preview(const string &message_text, Promise<Unit> &&promise);
WebPageId get_web_page_instant_view(const string &url, bool force_full, Promise<Unit> &&promise);
WebPageId get_web_page_by_url(const string &url) const;
WebPageId get_web_page_by_url(const string &url, Promise<Unit> &&promise);
void on_get_web_page_preview_success(const string &message_text,
tl_object_ptr<telegram_api::MessageMedia> &&message_media_ptr,
Promise<Unit> &&promise);
void on_get_web_page_preview_fail(const string &message_text, Status error, Promise<Unit> &&promise);
SecretInputMedia get_secret_input_media(WebPageId web_page_id) const;
void on_binlog_web_page_event(BinlogEvent &&event);
string get_web_page_search_text(WebPageId web_page_id) const;
private:
static constexpr int32 WEBPAGE_FLAG_HAS_TYPE = 1;
static constexpr int32 WEBPAGE_FLAG_HAS_SITE_NAME = 2;
static constexpr int32 WEBPAGE_FLAG_HAS_TITLE = 4;
static constexpr int32 WEBPAGE_FLAG_HAS_DESCRIPTION = 8;
static constexpr int32 WEBPAGE_FLAG_HAS_PHOTO = 16;
static constexpr int32 WEBPAGE_FLAG_HAS_EMBEDDED_PREVIEW = 32;
static constexpr int32 WEBPAGE_FLAG_HAS_EMBEDDED_PREVIEW_SIZE = 64;
static constexpr int32 WEBPAGE_FLAG_HAS_DURATION = 128;
static constexpr int32 WEBPAGE_FLAG_HAS_AUTHOR = 256;
static constexpr int32 WEBPAGE_FLAG_HAS_DOCUMENT = 512;
static constexpr int32 WEBPAGE_FLAG_HAS_INSTANT_VIEW = 1024;
class WebPage;
class RichText;
class PageBlock;
class PageBlockTitle;
class PageBlockSubtitle;
class PageBlockAuthorDate;
class PageBlockHeader;
class PageBlockSubheader;
class PageBlockParagraph;
class PageBlockPreformatted;
class PageBlockFooter;
class PageBlockDivider;
class PageBlockAnchor;
class PageBlockList;
class PageBlockBlockQuote;
class PageBlockPullQuote;
class PageBlockAnimation;
class PageBlockPhoto;
class PageBlockVideo;
class PageBlockCover;
class PageBlockEmbedded;
class PageBlockEmbeddedPost;
class PageBlockCollage;
class PageBlockSlideshow;
class PageBlockChatLink;
class PageBlockAudio;
class WebPageInstantView;
class WebPageLogEvent;
template <class T>
friend void store(const unique_ptr<PageBlock> &block, T &storer);
template <class T>
friend void parse(unique_ptr<PageBlock> &block, T &parser);
void update_web_page(unique_ptr<WebPage> web_page, WebPageId web_page_id, bool from_binlog, bool from_database);
void update_web_page_instant_view(WebPageId web_page_id, WebPageInstantView &new_instant_view,
WebPageInstantView &&old_instant_view);
static bool need_use_old_instant_view(const WebPageInstantView &new_instant_view,
const WebPageInstantView &old_instant_view);
void update_messages_content(WebPageId web_page_id, bool have_web_page);
WebPage *get_web_page(WebPageId web_page_id);
const WebPage *get_web_page(WebPageId web_page_id) const;
WebPageInstantView *get_web_page_instant_view(WebPageId web_page_id);
const WebPageInstantView *get_web_page_instant_view(WebPageId web_page_id) const;
WebPageId get_web_page_instant_view(WebPageId web_page_id, bool force_full, Promise<Unit> &&promise);
tl_object_ptr<td_api::webPageInstantView> get_web_page_instant_view_object(
const WebPageInstantView *web_page_instant_view) const;
static void on_pending_web_page_timeout_callback(void *web_pages_manager_ptr, int64 web_page_id);
void on_pending_web_page_timeout(WebPageId web_page_id);
void on_get_web_page_preview_success(const string &message_text, WebPageId web_page_id, Promise<Unit> &&promise);
static RichText get_rich_text(tl_object_ptr<telegram_api::RichText> &&rich_text_ptr);
static vector<RichText> get_rich_texts(vector<tl_object_ptr<telegram_api::RichText>> &&rich_text_ptrs);
static tl_object_ptr<td_api::RichText> get_rich_text_object(const RichText &rich_text);
static vector<tl_object_ptr<td_api::RichText>> get_rich_text_objects(const vector<RichText> &rich_texts);
static vector<tl_object_ptr<td_api::PageBlock>> get_page_block_objects(
const vector<unique_ptr<PageBlock>> &page_blocks);
unique_ptr<PageBlock> get_page_block(tl_object_ptr<telegram_api::PageBlock> page_block_ptr,
const std::unordered_map<int64, FileId> &animations,
const std::unordered_map<int64, FileId> &audios,
const std::unordered_map<int64, Photo> &photos,
const std::unordered_map<int64, FileId> &videos) const;
vector<unique_ptr<PageBlock>> get_page_blocks(vector<tl_object_ptr<telegram_api::PageBlock>> page_block_ptrs,
const std::unordered_map<int64, FileId> &animations,
const std::unordered_map<int64, FileId> &audios,
const std::unordered_map<int64, Photo> &photos,
const std::unordered_map<int64, FileId> &videos) const;
void on_get_web_page_instant_view(WebPage *web_page, tl_object_ptr<telegram_api::Page> &&page_ptr, int32 hash,
DialogId owner_dialog_id);
void save_web_page(WebPage *web_page, WebPageId web_page_id, bool from_binlog);
static string get_web_page_database_key(WebPageId web_page_id);
void on_save_web_page_to_database(WebPageId web_page_id, bool success);
void load_web_page_from_database(WebPageId web_page_id, Promise<Unit> promise);
void on_load_web_page_from_database(WebPageId web_page_id, string value);
WebPage *get_web_page_force(WebPageId web_page_id);
static string get_web_page_instant_view_database_key(WebPageId web_page_id);
void load_web_page_instant_view(WebPageId web_page_id, bool force_full, Promise<Unit> &&promise);
void on_load_web_page_instant_view_from_database(WebPageId web_page_id, string value);
void reload_web_page_instant_view(WebPageId web_page_id);
void update_web_page_instant_view_load_requests(WebPageId web_page_id, bool force_update, Result<> result);
static string get_web_page_url_database_key(const string &url);
void load_web_page_by_url(const string &url, Promise<Unit> &&promise);
void reload_web_page_by_url(const string &url, Promise<Unit> &&promise);
void on_load_web_page_id_by_url_from_database(const string &url, string value, Promise<Unit> &&promise);
void on_load_web_page_by_url_from_database(WebPageId web_page_id, const string &url, Promise<Unit> &&promise,
Result<> result);
void tear_down() override;
Td *td_;
ActorShared<> parent_;
std::unordered_map<WebPageId, unique_ptr<WebPage>, WebPageIdHash> web_pages_;
std::unordered_map<WebPageId, vector<Promise<Unit>>, WebPageIdHash> load_web_page_from_database_queries_;
std::unordered_set<WebPageId, WebPageIdHash> loaded_from_database_web_pages_;
struct PendingWebPageInstantViewQueries {
vector<Promise<Unit>> partial;
vector<Promise<Unit>> full;
};
std::unordered_map<WebPageId, PendingWebPageInstantViewQueries, WebPageIdHash> load_web_page_instant_view_queries_;
std::unordered_map<WebPageId, std::unordered_set<FullMessageId, FullMessageIdHash>, WebPageIdHash> pending_web_pages_;
std::unordered_map<WebPageId, std::unordered_map<string, Promise<Unit>>, WebPageIdHash> pending_get_web_pages_;
std::unordered_map<string, WebPageId> got_web_page_previews_;
std::unordered_set<string> running_get_web_page_previews_;
std::unordered_map<string, WebPageId> url_to_web_page_id_;
MultiTimeout pending_web_pages_timeout_;
};
} // namespace td