mirror of https://github.com/aria2/aria2
100 lines
3.9 KiB
C++
100 lines
3.9 KiB
C++
/* <!-- copyright */
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/*
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* aria2 - The high speed download utility
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*
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* Copyright (C) 2006 Tatsuhiro Tsujikawa
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of portions of this program with the
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* OpenSSL library under certain conditions as described in each
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* individual source file, and distribute linked combinations
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* including the two.
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* You must obey the GNU General Public License in all respects
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* for all of the code used other than OpenSSL. If you modify
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* file(s) with this exception, you may extend this exception to your
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* version of the file(s), but you are not obligated to do so. If you
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* do not wish to do so, delete this exception statement from your
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* version. If you delete this exception statement from all source
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* files in the program, then also delete it here.
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*/
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/* copyright --> */
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#ifndef D_HTTP_RESPONSE_COMMAND_H
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#define D_HTTP_RESPONSE_COMMAND_H
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#include "AbstractCommand.h"
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#include "TimeA2.h"
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namespace aria2 {
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class HttpConnection;
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class HttpDownloadCommand;
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class HttpResponse;
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class SocketCore;
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class StreamFilter;
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class Checksum;
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// HttpResponseCommand receives HTTP response header from remote
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// server. Because network I/O is non-blocking, execute() returns
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// false when all response headers are not received. Subsequent calls
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// of execute() receives remaining response headers and when all
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// headers are received, it examines headers. If status code is 200
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// or 206 and Range header satisfies requested range, it creates
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// HttpDownloadCommand to receive response entity body. Otherwise, it
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// creates HttpSkipResponseCommand to receive response entity body and
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// returns true. Handling errors such as 404 or redirect is handled in
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// HttpSkipResponseCommand.
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class HttpResponseCommand : public AbstractCommand {
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private:
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std::shared_ptr<HttpConnection> httpConnection_;
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bool handleDefaultEncoding(std::unique_ptr<HttpResponse> httpResponse);
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bool handleOtherEncoding(std::unique_ptr<HttpResponse> httpResponse);
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bool skipResponseBody(std::unique_ptr<HttpResponse> httpResponse);
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std::unique_ptr<HttpDownloadCommand>
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createHttpDownloadCommand(std::unique_ptr<HttpResponse> httpResponse,
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std::unique_ptr<StreamFilter> streamFilter);
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void updateLastModifiedTime(const Time& lastModified);
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void poolConnection();
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void onDryRunFileFound();
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// Returns true if dctx and checksum has same hash type and hash
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// value. If they have same hash type but different hash value,
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// throws exception. Otherwise returns false.
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bool checkChecksum(const std::shared_ptr<DownloadContext>& dctx,
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const Checksum& checksum);
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protected:
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bool executeInternal() CXX11_OVERRIDE;
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bool shouldInflateContentEncoding(HttpResponse* httpResponse);
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public:
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HttpResponseCommand(cuid_t cuid, const std::shared_ptr<Request>& req,
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const std::shared_ptr<FileEntry>& fileEntry,
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RequestGroup* requestGroup,
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const std::shared_ptr<HttpConnection>& httpConnection,
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DownloadEngine* e, const std::shared_ptr<SocketCore>& s);
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~HttpResponseCommand();
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};
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} // namespace aria2
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#endif // D_HTTP_RESPONSE_COMMAND_H
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