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/**
* @file llcurl.h
* @author Zero / Donovan
* @date 2006-10-15
* @brief Curl wrapper
*
* $LicenseInfo:firstyear=2006&license=viewergpl$
*
* Copyright (c) 2006-2007, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlife.com/developers/opensource/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at http://secondlife.com/developers/opensource/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#ifndef LL_LLCURL_H
#define LL_LLCURL_H
#include "linden_common.h"
#include <sstream>
#include <string>
#include <vector>
#include <boost/intrusive_ptr.hpp>
#include <curl/curl.h>
// #include "llhttpclient.h"
class LLCurl
{
public:
class Multi;
class Responder
{
public:
Responder();
virtual ~Responder();
virtual void error(U32 status, const std::stringstream& content); // called with bad status codes
virtual void result(const std::stringstream& content);
virtual void completed(U32 status, const std::stringstream& content);
/**< The default implemetnation calls
either:
* result(), or
* error()
*/
public: /* but not really -- don't touch this */
U32 mReferenceCount;
};
typedef boost::intrusive_ptr<Responder> ResponderPtr;
class Easy
{
public:
Easy();
~Easy();
void get(const std::string& url, ResponderPtr);
void getByteRange(const std::string& url, S32 offset, S32 length, ResponderPtr);
void perform();
private:
void prep(const std::string& url, ResponderPtr);
void report(CURLcode);
CURL* mHandle;
struct curl_slist* mHeaders;
std::string mURL;
std::string mRange;
std::stringstream mRequest;
std::stringstream mOutput;
char mErrorBuffer[CURL_ERROR_SIZE];
std::stringstream mHeaderOutput; // Debug
ResponderPtr mResponder;
friend class Multi;
};
class Multi
{
public:
Multi();
~Multi();
void get(const std::string& url, ResponderPtr);
void getByteRange(const std::string& url, S32 offset, S32 length, ResponderPtr);
void process();
private:
Easy* easyAlloc();
void easyFree(Easy*);
CURLM* mHandle;
typedef std::vector<Easy*> EasyList;
EasyList mFreeEasy;
};
static void get(const std::string& url, ResponderPtr);
static void getByteRange(const std::string& url, S32 offset, S32 length, ResponderPtr responder);
static void process();
static void cleanup();
};
namespace boost
{
void intrusive_ptr_add_ref(LLCurl::Responder* p);
void intrusive_ptr_release(LLCurl::Responder* p);
};
#endif // LL_LLCURL_H
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