tdesktop/Telegram/SourceFiles/api/api_user_names.cpp at dev · dmitry/tdesktop · GitHub

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This file is part of Telegram Desktop,

the official desktop application for the Telegram messaging service.

For license and copyright information please follow this link:

https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL

#include "api/api_user_names.h"

#include "apiwrap.h"

#include "data/data_channel.h"

#include "data/data_peer.h"

#include "data/data_user.h"

#include "main/main_session.h"

namespace Api {

namespace {

[[nodiscard]] Data::Username UsernameFromTL(const MTPUsername &username) {

return {

.username = qs(username.data().vusername()),

.active = username.data().is_active(),

.editable = username.data().is_editable(),

};

}

[[nodiscard]] std::optional<MTPInputUser> BotUserInput(

not_null<PeerData*> peer) {

const auto user = peer->asUser();

return (user && user->botInfo && user->botInfo->canEditInformation)

? std::make_optional<MTPInputUser>(user->inputUser())

: std::nullopt;

}

} // namespace

Usernames::Usernames(not_null<ApiWrap*> api)

: _session(&api->session())

, _api(&api->instance()) {

}

rpl::producer<Data::Usernames> Usernames::loadUsernames(

not_null<PeerData*> peer) const {

return [=](auto consumer) {

auto lifetime = rpl::lifetime();

const auto push = [consumer](

const auto &usernames,

const auto &username) {

if (usernames) {

if (usernames->v.empty()) {

// Probably will never happen.

consumer.put_next({});

} else {

auto parsed = FromTL(*usernames);

if ((parsed.size() == 1)

&& username

&& (parsed.front().username == qs(*username))) {

// Probably will never happen.

consumer.put_next({});

} else {

consumer.put_next(std::move(parsed));

}

} else {

consumer.put_next({});

}

};

const auto requestUser = [&](const MTPInputUser &data) {

_session->api().request(MTPusers_GetUsers(

MTP_vector<MTPInputUser>(1, data)

)).done([=](const MTPVector<MTPUser> &result) {

result.v.front().match([&](const MTPDuser &data) {

push(data.vusernames(), data.vusername());

consumer.put_done();

}, [&](const MTPDuserEmpty&) {

consumer.put_next({});

consumer.put_done();

});

}).send();

};

const auto requestChannel = [&](const MTPInputChannel &data) {

_session->api().request(MTPchannels_GetChannels(

MTP_vector<MTPInputChannel>(1, data)

)).done([=](const MTPmessages_Chats &result) {

result.match([&](const auto &data) {

data.vchats().v.front().match([&](const MTPDchannel &c) {

push(c.vusernames(), c.vusername());

consumer.put_done();

}, [&](auto &&) {

consumer.put_next({});

consumer.put_done();

});

}).send();

};

if (peer->isSelf()) {

requestUser(MTP_inputUserSelf());

} else if (const auto user = peer->asUser()) {

requestUser(user->inputUser());

} else if (const auto channel = peer->asChannel()) {

requestChannel(channel->inputChannel());

}

return lifetime;

};

}

rpl::producer<rpl::no_value, Usernames::Error> Usernames::toggle(

not_null<PeerData*> peer,

const QString &username,

bool active) {

const auto peerId = peer->id;

const auto it = _toggleRequests.find(peerId);

const auto found = (it != end(_toggleRequests));

auto &entry = (!found

? _toggleRequests.emplace(

peerId,

Entry{ .usernames = { username } }).first

: it)->second;

if (ranges::contains(entry.usernames, username)) {

if (found) {

return entry.done.events();

}

} else {

entry.usernames.push_back(username);

}

const auto pop = [=](Error error) {

const auto it = _toggleRequests.find(peerId);

if (it != end(_toggleRequests)) {

auto &list = it->second.usernames;

list.erase(ranges::remove(list, username), end(list));

if (list.empty()) {

if (error == Error::Unknown) {

it->second.done.fire_done();

} else {

it->second.done.fire_error_copy(error);

}

_toggleRequests.remove(peerId);

}

};

const auto done = [=] {

pop(Error::Unknown);

};

const auto fail = [=](const MTP::Error &error) {

const auto type = error.type();

if (type == u"USERNAMES_ACTIVE_TOO_MUCH"_q) {

pop(Error::TooMuch);

} else if (type.startsWith(u"FLOOD_WAIT_"_q)) {

pop(Error::Flood);

} else {

pop(Error::Unknown);

}

};

if (peer->isSelf()) {

_api.request(MTPaccount_ToggleUsername(

MTP_string(username),

MTP_bool(active)

)).done(done).fail(fail).handleFloodErrors().send();

} else if (const auto channel = peer->asChannel()) {

_api.request(MTPchannels_ToggleUsername(

channel->inputChannel(),

MTP_string(username),

MTP_bool(active)

)).done(done).fail(fail).handleFloodErrors().send();

} else if (const auto botUserInput = BotUserInput(peer)) {

_api.request(MTPbots_ToggleUsername(

*botUserInput,

MTP_string(username),

MTP_bool(active)

)).done(done).fail(fail).handleFloodErrors().send();

} else {

return rpl::never<rpl::no_value, Error>();

}

return entry.done.events();

}

rpl::producer<> Usernames::reorder(

not_null<PeerData*> peer,

const std::vector<QString> &usernames) {

const auto peerId = peer->id;

const auto it = _reorderRequests.find(peerId);

if (it != end(_reorderRequests)) {

_api.request(it->second).cancel();

_reorderRequests.erase(peerId);

}

return [=](auto consumer) {

auto lifetime = rpl::lifetime();

auto tlUsernames = ranges::views::all(

usernames

) | ranges::views::transform([](const QString &username) {

return MTP_string(username);

}) | ranges::to<QVector<MTPstring>>;

const auto finish = [=] {

if (_reorderRequests.contains(peerId)) {

_reorderRequests.erase(peerId);

}

consumer.put_done();

};

if (usernames.empty()) {

crl::on_main([=] { consumer.put_done(); });

return lifetime;

}

if (peer->isSelf()) {

const auto requestId = _api.request(MTPaccount_ReorderUsernames(

MTP_vector<MTPstring>(std::move(tlUsernames))

)).done(finish).fail(finish).send();

_reorderRequests.emplace(peerId, requestId);

} else if (const auto channel = peer->asChannel()) {

const auto requestId = _api.request(MTPchannels_ReorderUsernames(

channel->inputChannel(),

MTP_vector<MTPstring>(std::move(tlUsernames))

)).done(finish).fail(finish).send();

_reorderRequests.emplace(peerId, requestId);

} else if (const auto botUserInput = BotUserInput(peer)) {

const auto requestId = _api.request(MTPbots_ReorderUsernames(

*botUserInput,

MTP_vector<MTPstring>(std::move(tlUsernames))

)).done(finish).fail(finish).send();

_reorderRequests.emplace(peerId, requestId);

}

return lifetime;

};

}

Data::Usernames Usernames::FromTL(const MTPVector<MTPUsername> &usernames) {

return ranges::views::all(

usernames.v

) | ranges::views::transform(UsernameFromTL) | ranges::to_vector;

}

void Usernames::requestToCache(not_null<PeerData*> peer) {

_tinyCache = {};

if (const auto user = peer->asUser()) {

if (user->usernames().empty()) {

return;

}

} else if (const auto channel = peer->asChannel()) {

if (channel->usernames().empty()) {

return;

}

const auto lifetime = std::make_shared<rpl::lifetime>();

*lifetime = loadUsernames(

peer

) | rpl::on_next([=, id = peer->id](Data::Usernames usernames) {

_tinyCache = std::make_pair(id, std::move(usernames));

lifetime->destroy();

});

}

Data::Usernames Usernames::cacheFor(PeerId id) {

return (_tinyCache.first == id) ? _tinyCache.second : Data::Usernames();

}

} // namespace Api

tdesktop/Telegram/SourceFiles/api/api_user_names.cpp at dev · dmitry/tdesktop · GitHub

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