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-/*
- * libjingle
- * Copyright 2004--2005, Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef TALK_BASE_HTTPCLIENT_H__
-#define TALK_BASE_HTTPCLIENT_H__
-
-#include "talk/base/common.h"
-#include "talk/base/httpbase.h"
-#include "talk/base/proxyinfo.h"
-#include "talk/base/scoped_ptr.h"
-#include "talk/base/sigslot.h"
-#include "talk/base/socketaddress.h"
-#include "talk/base/socketpool.h"
-
-namespace talk_base {
-
-//////////////////////////////////////////////////////////////////////
-// HttpClient
-//////////////////////////////////////////////////////////////////////
-
-class DiskCache;
-class HttpClient;
-class IPNetPool;
-
-class HttpClient : private IHttpNotify {
-public:
- HttpClient(const std::string& agent, StreamPool* pool);
- virtual ~HttpClient();
-
- void set_pool(StreamPool* pool) { pool_ = pool; }
-
- const std::string& agent() const { return agent_; }
-
- void set_proxy(const ProxyInfo& proxy) { proxy_ = proxy; }
- const ProxyInfo& proxy() const { return proxy_; }
-
- void set_fail_redirect(bool fail_redirect) { fail_redirect_ = fail_redirect; }
- bool fail_redirect() const { return fail_redirect_; }
-
- void use_absolute_uri(bool absolute_uri) { absolute_uri_ = absolute_uri; }
- bool absolute_uri() const { return absolute_uri_; }
-
- void set_cache(DiskCache* cache) { ASSERT(!IsCacheActive()); cache_ = cache; }
- bool cache_enabled() const { return (NULL != cache_); }
-
- // reset clears the server, request, and response structures. It will also
- // abort an active request.
- void reset();
-
- void set_server(const SocketAddress& address);
- const SocketAddress& server() const { return server_; }
-
- HttpRequestData& request() { return request_; }
- const HttpRequestData& request() const { return request_; }
- HttpResponseData& response() { return response_; }
- const HttpResponseData& response() const { return response_; }
-
- // convenience methods
- void prepare_get(const std::string& url);
- void prepare_post(const std::string& url, const std::string& content_type,
- StreamInterface* request_doc);
-
- // After you finish setting up your request, call start.
- void start();
-
- // Signalled when the header has finished downloading, before the document
- // content is processed. This notification is for informational purposes
- // only. Do not modify the client in response to this.
- sigslot::signal3<const HttpClient*,bool,size_t> SignalHeaderAvailable;
- // Signalled when the current 'call' finishes. On success, err is 0.
- sigslot::signal2<HttpClient*,int> SignalHttpClientComplete;
- // Signalled when the network connection goes down while a call is not
- // in progress.
- sigslot::signal2<HttpClient*,int> SignalHttpClientClosed;
-
-protected:
- void release();
-
- bool BeginCacheFile();
- HttpError WriteCacheHeaders(const std::string& id);
- void CompleteCacheFile();
-
- bool CheckCache();
- HttpError ReadCacheHeaders(const std::string& id, bool override);
- HttpError ReadCacheBody(const std::string& id);
-
- bool PrepareValidate();
- HttpError CompleteValidate();
-
- HttpError OnHeaderAvailable(bool ignore_data, bool chunked, size_t data_size);
-
- // IHttpNotify Interface
- virtual HttpError onHttpHeaderComplete(bool chunked, size_t& data_size);
- virtual void onHttpComplete(HttpMode mode, HttpError err);
- virtual void onHttpClosed(HttpError err);
-
-private:
- enum CacheState { CS_READY, CS_WRITING, CS_READING, CS_VALIDATING };
- bool IsCacheActive() const { return (cache_state_ > CS_READY); }
-
- std::string agent_;
- StreamPool* pool_;
- HttpBase base_;
- SocketAddress server_;
- ProxyInfo proxy_;
- HttpRequestData request_;
- HttpResponseData response_;
- bool fail_redirect_, absolute_uri_;
- scoped_ptr<HttpAuthContext> context_;
- DiskCache* cache_;
- CacheState cache_state_;
-};
-
-//////////////////////////////////////////////////////////////////////
-// Default implementation of HttpClient
-//////////////////////////////////////////////////////////////////////
-
-class HttpClientDefault : public ReuseSocketPool, public HttpClient {
-public:
- HttpClientDefault(SocketFactory* factory, const std::string& agent)
- : ReuseSocketPool(factory), HttpClient(agent, NULL)
- {
- set_pool(this);
- }
-};
-
-//////////////////////////////////////////////////////////////////////
-
-} // namespace talk_base
-
-#endif // TALK_BASE_HTTPCLIENT_H__