tdlight/td/telegram/MessageEntity.h
2023-11-01 22:13:29 +03:00

255 lines
9.6 KiB
C++

//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2023
//
// 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/CustomEmojiId.h"
#include "td/telegram/DialogId.h"
#include "td/telegram/secret_api.h"
#include "td/telegram/td_api.h"
#include "td/telegram/telegram_api.h"
#include "td/telegram/UserId.h"
#include "td/utils/common.h"
#include "td/utils/FlatHashSet.h"
#include "td/utils/HashTableUtils.h"
#include "td/utils/Slice.h"
#include "td/utils/Status.h"
#include "td/utils/StringBuilder.h"
#include <utility>
namespace td {
class ContactsManager;
class Dependencies;
class MultiPromiseActor;
class Td;
class MessageEntity {
public:
enum class Type : int32 {
Mention,
Hashtag,
BotCommand,
Url,
EmailAddress,
Bold,
Italic,
Code,
Pre,
PreCode,
TextUrl,
MentionName,
Cashtag,
PhoneNumber,
Underline,
Strikethrough,
BlockQuote,
BankCardNumber,
MediaTimestamp,
Spoiler,
CustomEmoji,
Size
};
Type type = Type::Size;
int32 offset = -1;
int32 length = -1;
int32 media_timestamp = -1;
string argument;
UserId user_id;
CustomEmojiId custom_emoji_id;
MessageEntity() = default;
MessageEntity(Type type, int32 offset, int32 length, string argument = "")
: type(type), offset(offset), length(length), argument(std::move(argument)) {
}
MessageEntity(int32 offset, int32 length, UserId user_id)
: type(Type::MentionName), offset(offset), length(length), user_id(user_id) {
}
MessageEntity(Type type, int32 offset, int32 length, int32 media_timestamp)
: type(type), offset(offset), length(length), media_timestamp(media_timestamp) {
CHECK(type == Type::MediaTimestamp);
}
MessageEntity(Type type, int32 offset, int32 length, CustomEmojiId custom_emoji_id)
: type(type), offset(offset), length(length), custom_emoji_id(custom_emoji_id) {
CHECK(type == Type::CustomEmoji);
}
tl_object_ptr<td_api::textEntity> get_text_entity_object() const;
bool operator==(const MessageEntity &other) const {
return offset == other.offset && length == other.length && type == other.type &&
media_timestamp == other.media_timestamp && argument == other.argument && user_id == other.user_id &&
custom_emoji_id == other.custom_emoji_id;
}
bool operator<(const MessageEntity &other) const {
if (offset != other.offset) {
return offset < other.offset;
}
if (length != other.length) {
return length > other.length;
}
auto priority = get_type_priority(type);
auto other_priority = get_type_priority(other.type);
return priority < other_priority;
}
bool operator!=(const MessageEntity &rhs) const {
return !(*this == rhs);
}
template <class StorerT>
void store(StorerT &storer) const;
template <class ParserT>
void parse(ParserT &parser);
private:
tl_object_ptr<td_api::TextEntityType> get_text_entity_type_object() const;
static int get_type_priority(Type type);
};
StringBuilder &operator<<(StringBuilder &string_builder, const MessageEntity::Type &message_entity_type);
StringBuilder &operator<<(StringBuilder &string_builder, const MessageEntity &message_entity);
struct FormattedText {
string text;
vector<MessageEntity> entities;
template <class StorerT>
void store(StorerT &storer) const;
template <class ParserT>
void parse(ParserT &parser);
};
struct FormattedTextHash {
uint32 operator()(const FormattedText &formatted_text) const {
auto hash = Hash<string>()(formatted_text.text);
for (auto &entity : formatted_text.entities) {
hash = combine_hashes(hash, Hash<int32>()(static_cast<int32>(entity.type)));
hash = combine_hashes(hash, Hash<int32>()(entity.length));
hash = combine_hashes(hash, Hash<int32>()(entity.offset));
}
return hash;
}
};
StringBuilder &operator<<(StringBuilder &string_builder, const FormattedText &text);
inline bool operator==(const FormattedText &lhs, const FormattedText &rhs) {
return lhs.text == rhs.text && lhs.entities == rhs.entities;
}
inline bool operator!=(const FormattedText &lhs, const FormattedText &rhs) {
return !(lhs == rhs);
}
const FlatHashSet<Slice, SliceHash> &get_valid_short_usernames();
Result<vector<MessageEntity>> get_message_entities(const ContactsManager *contacts_manager,
vector<tl_object_ptr<td_api::textEntity>> &&input_entities,
bool allow_all = false);
vector<tl_object_ptr<td_api::textEntity>> get_text_entities_object(const vector<MessageEntity> &entities,
bool skip_bot_commands, int32 max_media_timestamp);
td_api::object_ptr<td_api::formattedText> get_formatted_text_object(const FormattedText &text, bool skip_bot_commands,
int32 max_media_timestamp);
void remove_premium_custom_emoji_entities(const Td *td, vector<MessageEntity> &entities, bool remove_unknown);
void remove_unallowed_entities(const Td *td, FormattedText &text, DialogId dialog_id);
vector<MessageEntity> find_entities(Slice text, bool skip_bot_commands, bool skip_media_timestamps);
vector<Slice> find_mentions(Slice str);
vector<Slice> find_bot_commands(Slice str);
vector<Slice> find_hashtags(Slice str);
vector<Slice> find_cashtags(Slice str);
vector<Slice> find_bank_card_numbers(Slice str);
vector<Slice> find_tg_urls(Slice str);
bool is_email_address(Slice str);
vector<std::pair<Slice, bool>> find_urls(Slice str); // slice + is_email_address
vector<std::pair<Slice, int32>> find_media_timestamps(Slice str); // slice + media_timestamp
void remove_empty_entities(vector<MessageEntity> &entities);
void remove_unallowed_quote_entities(FormattedText &text);
Slice get_first_url(const FormattedText &text);
bool is_visible_url(const FormattedText &text, const string &url);
Result<vector<MessageEntity>> parse_markdown(string &text);
Result<vector<MessageEntity>> parse_markdown_v2(string &text);
FormattedText parse_markdown_v3(FormattedText text);
FormattedText get_markdown_v3(FormattedText text);
Result<vector<MessageEntity>> parse_html(string &str);
vector<tl_object_ptr<telegram_api::MessageEntity>> get_input_message_entities(const ContactsManager *contacts_manager,
const vector<MessageEntity> &entities,
const char *source);
vector<tl_object_ptr<telegram_api::MessageEntity>> get_input_message_entities(const ContactsManager *contacts_manager,
const FormattedText *text,
const char *source);
vector<tl_object_ptr<secret_api::MessageEntity>> get_input_secret_message_entities(
const vector<MessageEntity> &entities, int32 layer);
vector<MessageEntity> get_message_entities(const ContactsManager *contacts_manager,
vector<tl_object_ptr<telegram_api::MessageEntity>> &&server_entities,
const char *source);
vector<MessageEntity> get_message_entities(Td *td, vector<tl_object_ptr<secret_api::MessageEntity>> &&secret_entities,
bool is_premium, MultiPromiseActor &load_data_multipromise);
telegram_api::object_ptr<telegram_api::textWithEntities> get_input_text_with_entities(
const ContactsManager *contacts_manager, const FormattedText &text, const char *source);
FormattedText get_formatted_text(const ContactsManager *contacts_manager,
telegram_api::object_ptr<telegram_api::textWithEntities> text_with_entities,
bool allow_empty, bool skip_new_entities, bool skip_bot_commands,
bool skip_media_timestamps, bool skip_trim, const char *source);
// like clean_input_string but also validates entities
Status fix_formatted_text(string &text, vector<MessageEntity> &entities, bool allow_empty, bool skip_new_entities,
bool skip_bot_commands, bool skip_media_timestamps, bool skip_trim) TD_WARN_UNUSED_RESULT;
FormattedText get_message_text(const ContactsManager *contacts_manager, string message_text,
vector<tl_object_ptr<telegram_api::MessageEntity>> &&server_entities,
bool skip_new_entities, bool skip_media_timestamps, int32 send_date, bool from_album,
const char *source);
void truncate_formatted_text(FormattedText &text, size_t length);
td_api::object_ptr<td_api::formattedText> extract_input_caption(
tl_object_ptr<td_api::InputMessageContent> &input_message_content);
Result<FormattedText> get_formatted_text(const Td *td, DialogId dialog_id,
td_api::object_ptr<td_api::formattedText> &&text, bool is_bot,
bool allow_empty, bool skip_media_timestamps, bool skip_trim);
void add_formatted_text_dependencies(Dependencies &dependencies, const FormattedText *text);
bool has_media_timestamps(const FormattedText *text, int32 min_media_timestamp, int32 max_media_timestamp);
bool has_bot_commands(const FormattedText *text);
bool need_always_skip_bot_commands(const ContactsManager *contacts_manager, DialogId dialog_id, bool is_bot);
} // namespace td