summaryrefslogtreecommitdiffstats
path: root/src/uscxml/URL.h
blob: 16c29c7d6e5a25da764c902984e5ae8119209459 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
#ifndef URL_H_9DAEGSMV
#define URL_H_9DAEGSMV

#include <curl/curl.h>
#include <string>
#include <iostream>
#include <sstream>
#include <map>
#include <vector>
#include <set>
#include "Message.h"
#include <boost/shared_ptr.hpp>
#include <boost/enable_shared_from_this.hpp>
#include <sys/stat.h>

#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::vector<std::string> pathComponents() const {
		return _pathComponents;
	}
	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 getInHeaderField(const std::string& key);
	const std::string getStatusCode();
	const std::string getStatusMessage();


	const std::string getInContent(bool forceReload = false);
	const void download(bool blocking = false);

	void downloadStarted();
	void downloadCompleted();
	void downloadFailed(CURLcode errorCode);

	bool downloadFailed() {
		return _hasFailed;
	}
	operator Data() const;

	friend class URLFetcher;

protected:
	URLImpl()  : _handle(NULL), _isDownloaded(false), _hasFailed(false) {}
	std::string getLocalFilename(const std::string& suffix);

	CURL* getCurlHandle();

	std::string _outContent;
	std::map<std::string, std::string> _outHeader;
	std::string _requestType;

	CURL* _handle;
	std::stringstream _rawInContent;
	std::stringstream _rawInHeader;

	std::string _statusCode;
	std::string _statusMsg;
	std::map<std::string, std::string> _inHeaders;

	Arabica::io::URI _uri;
	std::vector<std::string> _pathComponents;

	bool _isDownloaded;
	bool _hasFailed;

	std::string _localFile;
	std::string _error;

	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 getInHeaderField(const std::string& key) const {
		return _impl->getInHeaderField(key);
	}
	const std::string getStatusCode() const {
		return _impl->getStatusCode();
	}
	const std::string getStatusMessage() const {
		return _impl->getStatusMessage();
	}

	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 asBaseURL(const URL& url);
	static void toBaseURL(URL& uri);

	static std::string getResourceDir();

	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);
	}

	bool downloadFailed() {
		return _impl->downloadFailed();
	}

	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::vector<std::string> pathComponents() const {
		return _impl->pathComponents();
	}
	const std::string asString() const {
		return _impl->asString();
	}

	static std::string tmpDir();

	friend class URLFetcher;
	friend std::ostream & operator<<(std::ostream &stream, const URL& p);

	operator Data() const {
		return _impl->operator Data();
	}

protected:
	void downloadStarted() {
		return _impl->downloadStarted();
	}
	void downloadCompleted() {
		return _impl->downloadCompleted();
	}
	void downloadFailed(CURLcode 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 */