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#ifndef URL_H_9DAEGSMV
#define URL_H_9DAEGSMV
#include <curl/curl.h>
#include <string>
#include <iostream>
#include <sstream>
#include <map>
#include <set>
#include <boost/shared_ptr.hpp>
#include <boost/enable_shared_from_this.hpp>
#include "uscxml/concurrency/tinythread.h"
// use arabica URL parser
#include <io/uri.hpp>
namespace uscxml {
class URL;
class URLMonitor {
public:
virtual void downloadStarted(const URL& url) {};
virtual void downloadCompleted(const URL& url) {};
virtual void downloadFailed(const URL& url, int errorCode) {};
virtual void headerChunkReceived(const URL& url, const std::string& headerChunk) {};
virtual void contentChunkReceived(const URL& url, const std::string& contentChunk) {};
};
class URLImpl : public boost::enable_shared_from_this<URLImpl> {
public:
URLImpl(const std::string& url);
~URLImpl();
static boost::shared_ptr<URLImpl> toLocalFile(const std::string& content, const std::string& suffix);
static size_t writeHandler(void *ptr, size_t size, size_t nmemb, void *userdata);
static size_t headerHandler(void *ptr, size_t size, size_t nmemb, void *userdata);
void addMonitor(URLMonitor* monitor) { _monitors.insert(monitor); }
void removeMonitor(URLMonitor* monitor) { _monitors.erase(monitor); }
const bool isAbsolute() const { return _uri.is_absolute(); }
const std::string scheme() const { return _uri.scheme(); }
const std::string host() const { return _uri.host(); }
const std::string port() const { return _uri.port(); }
const std::string path() const { return _uri.path(); }
const std::string asString() const { return _uri.as_string(); }
const bool toAbsoluteCwd();
const bool toAbsolute(const std::string& baseUrl);
const std::string asLocalFile(const std::string& suffix, bool reload = false);
void addOutHeader(const std::string& key, const std::string& value) { _outHeader[key] = value; }
void setOutContent(const std::string& content);
void setRequestType(const std::string& requestType);
const std::map<std::string, std::string> getInHeaderFields();
const std::string getInContent(bool forceReload = false);
const void download(bool blocking = false);
void downloadStarted();
void downloadCompleted();
void downloadFailed(int errorCode);
friend class URLFetcher;
protected:
URLImpl() : _handle(NULL), _isDownloaded(false), _hasFailed(false) {}
std::string getLocalFilename(const std::string& suffix);
std::string _outContent;
std::map<std::string, std::string> _outHeader;
std::string _requestType;
CURL* _handle;
std::stringstream _inContent;
std::stringstream _inHeader;
Arabica::io::URI _uri;
bool _isDownloaded;
bool _hasFailed;
std::string _localFile;
tthread::condition_variable _condVar;
tthread::recursive_mutex _mutex;
std::set<URLMonitor*> _monitors;
typedef std::set<URLMonitor*>::iterator monIter_t;
};
class URL {
public:
URL() : _impl() {}
URL(const std::string url) : _impl(new URLImpl(url)) {}
URL(boost::shared_ptr<URLImpl> const impl) : _impl(impl) { }
URL(const URL& other) : _impl(other._impl) { }
virtual ~URL() {};
operator bool() const { return _impl; }
bool operator< (const URL& other) const { return _impl < other._impl; }
bool operator==(const URL& other) const { return _impl == other._impl; }
bool operator!=(const URL& other) const {
return _impl != other._impl;
}
URL& operator= (const URL& other) {
_impl = other._impl;
return *this;
}
const std::map<std::string, std::string> getInHeaderFields() const { return _impl->getInHeaderFields(); }
const std::string getInContent() const { return _impl->getInContent(); }
const void download(bool blocking = false) const { return _impl->download(blocking); }
void addOutHeader(const std::string& key, const std::string& value) { _impl->addOutHeader(key, value); }
void setRequestType(const std::string& requestType) { _impl->setRequestType(requestType); }
void setOutContent(const std::string& content) { _impl->setOutContent(content); }
const bool toAbsoluteCwd() { return _impl->toAbsoluteCwd(); }
const bool toAbsolute(const std::string& baseUrl) { return _impl->toAbsolute(baseUrl); }
const bool toAbsolute(const URL& baseUrl) { return _impl->toAbsolute(baseUrl.asString()); }
const std::string asLocalFile(const std::string& suffix, bool reload = false) { return _impl->asLocalFile(suffix, reload); }
static URL toLocalFile(const std::string& content, const std::string& suffix) {
boost::shared_ptr<URLImpl> impl = URLImpl::toLocalFile(content, suffix);
return URL(impl);
}
void addMonitor(URLMonitor* monitor) { _impl->addMonitor(monitor); }
void removeMonitor(URLMonitor* monitor) { _impl->removeMonitor(monitor); }
const bool isAbsolute() const { return _impl->isAbsolute(); }
const std::string scheme() const { return _impl->scheme(); }
const std::string host() const { return _impl->host(); }
const std::string port() const { return _impl->port(); }
const std::string path() const { return _impl->path(); }
const std::string asString() const { return _impl->asString(); }
friend class URLFetcher;
friend std::ostream & operator<<(std::ostream &stream, const URL& p);
protected:
void downloadStarted() { return _impl->downloadStarted(); }
void downloadCompleted() { return _impl->downloadCompleted(); }
void downloadFailed(int errorCode) { return _impl->downloadFailed(errorCode); }
boost::shared_ptr<URLImpl> _impl;
};
class URLFetcher {
public:
URLFetcher();
~URLFetcher();
static void fetchURL(URL& url);
static void breakURL(URL& url);
void start();
void stop();
protected:
static URLFetcher* _instance;
static URLFetcher* getInstance();
static void run(void* instance);
void perform();
tthread::thread* _thread;
tthread::condition_variable _condVar;
tthread::recursive_mutex _mutex;
bool _isStarted;
std::map<CURL*, URL> _handlesToURLs;
CURLM* _multiHandle;
};
}
#endif /* end of include guard: URL_H_9DAEGSMV */
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