125 lines
2.8 KiB
C++
125 lines
2.8 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include "base/bytes.h"
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namespace MTP {
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struct ServiceWebRequest {
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ServiceWebRequest(not_null<QNetworkReply*> reply);
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ServiceWebRequest(ServiceWebRequest &&other);
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ServiceWebRequest &operator=(ServiceWebRequest &&other);
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~ServiceWebRequest();
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void destroy();
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QPointer<QNetworkReply> reply;
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};
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class SpecialConfigRequest : public QObject {
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public:
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SpecialConfigRequest(
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Fn<void(
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DcId dcId,
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const std::string &ip,
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int port,
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bytes::const_span secret)> callback,
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const QString &phone);
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private:
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enum class Type {
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//App,
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Dns,
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};
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struct Attempt {
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Type type;
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QString domain;
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};
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void sendNextRequest();
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void performRequest(const Attempt &attempt);
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void requestFinished(Type type, not_null<QNetworkReply*> reply);
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QByteArray finalizeRequest(not_null<QNetworkReply*> reply);
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void handleResponse(const QByteArray &bytes);
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bool decryptSimpleConfig(const QByteArray &bytes);
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Fn<void(
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DcId dcId,
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const std::string &ip,
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int port,
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bytes::const_span secret)> _callback;
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QString _phone;
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MTPhelp_ConfigSimple _simpleConfig;
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QNetworkAccessManager _manager;
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std::vector<Attempt> _attempts;
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std::vector<ServiceWebRequest> _requests;
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};
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class DomainResolver : public QObject {
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public:
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DomainResolver(Fn<void(
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const QString &domain,
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const QStringList &ips,
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crl::time expireAt)> callback);
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void resolve(const QString &domain);
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private:
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struct AttemptKey {
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QString domain;
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bool ipv6 = false;
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inline bool operator<(const AttemptKey &other) const {
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return (domain < other.domain)
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|| (domain == other.domain && !ipv6 && other.ipv6);
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}
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inline bool operator==(const AttemptKey &other) const {
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return (domain == other.domain) && (ipv6 == other.ipv6);
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}
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};
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struct CacheEntry {
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QStringList ips;
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crl::time expireAt = 0;
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};
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struct Attempts {
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std::vector<QString> hosts;
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base::has_weak_ptr guard;
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};
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void resolve(const AttemptKey &key);
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void sendNextRequest(const AttemptKey &key);
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void performRequest(const AttemptKey &key, const QString &host);
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void checkExpireAndPushResult(const QString &domain);
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void requestFinished(
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const AttemptKey &key,
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not_null<QNetworkReply*> reply);
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QByteArray finalizeRequest(
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const AttemptKey &key,
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not_null<QNetworkReply*> reply);
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Fn<void(
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const QString &domain,
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const QStringList &ips,
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crl::time expireAt)> _callback;
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QNetworkAccessManager _manager;
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std::map<AttemptKey, Attempts> _attempts;
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std::map<AttemptKey, std::vector<ServiceWebRequest>> _requests;
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std::map<AttemptKey, CacheEntry> _cache;
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crl::time _lastTimestamp = 0;
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};
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} // namespace MTP
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