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140 lines
4.1 KiB
C++
140 lines
4.1 KiB
C++
#pragma once
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#include <functional>
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#include <memory>
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#include <thread>
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#include <cstdint>
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#include "Common/File/Path.h"
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#include "Common/Net/NetBuffer.h"
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#include "Common/Net/Resolve.h"
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#include "Common/Net/HTTPRequest.h"
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namespace net {
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class Connection {
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public:
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virtual ~Connection();
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// Inits the sockaddr_in.
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bool Resolve(const char *host, int port, DNSType type = DNSType::ANY);
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bool Connect(int maxTries = 2, double timeout = 20.0f, bool *cancelConnect = nullptr);
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void Disconnect();
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// Only to be used for bring-up and debugging.
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uintptr_t sock() const { return sock_; }
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protected:
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// Store the remote host here, so we can send it along through HTTP/1.1 requests.
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// TODO: Move to http::client?
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std::string host_;
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int port_ = -1;
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addrinfo *resolved_ = nullptr;
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private:
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uintptr_t sock_ = -1;
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};
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} // namespace net
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namespace http {
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bool GetHeaderValue(const std::vector<std::string> &responseHeaders, const std::string &header, std::string *value);
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class RequestParams {
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public:
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RequestParams() {}
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explicit RequestParams(const char *r) : resource(r) {}
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RequestParams(const std::string &r, const char *a) : resource(r), acceptMime(a) {}
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std::string resource;
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const char *acceptMime = "*/*";
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};
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class Client : public net::Connection {
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public:
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Client();
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~Client();
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// Return value is the HTTP return code. 200 means OK. < 0 means some local error.
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int GET(const RequestParams &req, Buffer *output, net::RequestProgress *progress);
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int GET(const RequestParams &req, Buffer *output, std::vector<std::string> &responseHeaders, net::RequestProgress *progress);
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// Return value is the HTTP return code.
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int POST(const RequestParams &req, const std::string &data, const std::string &mime, Buffer *output, net::RequestProgress *progress);
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int POST(const RequestParams &req, const std::string &data, Buffer *output, net::RequestProgress *progress);
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// HEAD, PUT, DELETE aren't implemented yet, but can be done with SendRequest.
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int SendRequest(const char *method, const RequestParams &req, const char *otherHeaders, net::RequestProgress *progress);
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int SendRequestWithData(const char *method, const RequestParams &req, const std::string &data, const char *otherHeaders, net::RequestProgress *progress);
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int ReadResponseHeaders(net::Buffer *readbuf, std::vector<std::string> &responseHeaders, net::RequestProgress *progress);
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// If your response contains a response, you must read it.
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int ReadResponseEntity(net::Buffer *readbuf, const std::vector<std::string> &responseHeaders, Buffer *output, net::RequestProgress *progress);
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void SetDataTimeout(double t) {
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dataTimeout_ = t;
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}
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void SetUserAgent(const std::string &value) {
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userAgent_ = value;
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}
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protected:
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std::string userAgent_;
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double dataTimeout_ = 900.0;
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};
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// Really an asynchronous request.
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class HTTPRequest : public Request {
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public:
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HTTPRequest(RequestMethod method, const std::string &url, const std::string &postData, const std::string &postMime, const Path &outfile, ProgressBarMode progressBarMode = ProgressBarMode::DELAYED, std::string_view name = "");
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~HTTPRequest();
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void Start() override;
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void Join() override;
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bool Done() override { return completed_; }
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bool Failed() const override { return failed_; }
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// NOTE! The value of ResultCode is INVALID until Done() returns true.
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int ResultCode() const override { return resultCode_; }
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const Path &outfile() const override { return outfile_; }
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// If not downloading to a file, access this to get the result.
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Buffer &buffer() override { return buffer_; }
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const Buffer &buffer() const override { return buffer_; }
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void Cancel() override {
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cancelled_ = true;
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}
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bool IsCancelled() const override {
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return cancelled_;
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}
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private:
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void Do(); // Actually does the download. Runs on thread.
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int Perform(const std::string &url);
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std::string RedirectLocation(const std::string &baseUrl) const;
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void SetFailed(int code);
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std::string postData_;
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Buffer buffer_;
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std::vector<std::string> responseHeaders_;
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Path outfile_;
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std::thread thread_;
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std::string postMime_;
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int resultCode_ = 0;
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bool completed_ = false;
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bool failed_ = false;
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bool cancelled_ = false;
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bool joined_ = false;
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};
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} // http
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