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root/proj/trunk/Search/HttpHandler.cpp

Comparing trunk/Search/HttpHandler.cpp (file contents):
Revision 1 by douglas, 2002-12-04T20:22:59-08:00 vs.
Revision 18 by douglas, 2002-12-09T21:40:12-08:00

#	Line 50 | Line 50
50
51		#include "HttpHandler.h"
52
53	–	#ifdef _WIN32
54	–	#define PATH_SEPARATOR "\\"
55	–	#define ENV_SEPARATOR ';'
56	–	#else
57	–	#define PATH_SEPARATOR "/"
58	–	#define ENV_SEPARATOR ':'
59	–	#endif
60	–
53		HttpHandler::HttpHandler()
54		{
55	<	string arguments = "(Ljava/lang/String;ILjava/lang/String;Ljava/lang/Strin"
64	<	+ string("g;Ljava/lang/String;)Ljava/lang/String;");
55	>	buffer = new char[BUFSIZ + 1];
56
57	<	begin = 0;
58	<
59	<	setJarPath();
57	>	#ifdef _WIN32
58	>	if (WSAStartup(MAKEWORD(2, 0), &data) != 0)
59	>	{
60	>	error(program + ": WSAStartup");
61	>	exit(1);
62	>	}
63	>	#endif // _WIN32
64
65	<	//      options[0].optionString = jarPath;
66	<	//      memset(&vm_args, 0, sizeof (vm_args));
67	<	//      vm_args.version = JNI_VERSION_1_4;
73	<	//      vm_args.nOptions = 1;
74	<	//      vm_args.options = options;
75	<
76	<	//      status = JNI_CreateJavaVM(&jvm, (void**)&env, &vm_args);
77	<
78	<	//      if (status != JNI_ERR)
79	<	//      {
80	<	//              cls = env->FindClass("HttpConnector");
81	<
82	<	//              if (cls != 0)
83	<	//              {
84	<	//                      mid = env->GetStaticMethodID(cls, "connect", arguments.c_str());
85	<	//              }
86	<	//      }
65	>	begin = 0;
66	>	length = 0;
67	>	chunked = false;
68		}
69
70		HttpHandler::~HttpHandler()
71		{
72	<	//      if (status != JNI_ERR)
92	<	//      {
93	<	//              jvm->DestroyJavaVM();
94	<	//      }
72	>	delete [] buffer;
73
74	<	//      delete [] jarPath;
74	>	#ifdef _WIN32
75	>	WSACleanup();
76	>	#endif // _WIN32
77		}
78
79	<	bool HttpHandler::connect(URL& url)
79	>	bool HttpHandler::handle(URL &url, bool head)
80		{
81		bool answer = false;
82
83	<	//      if (status != JNI_ERR)
84	<	//      {
85	<	//              if (cls != 0)
86	<	//              {
87	<	//                      if (mid != 0)
88	<	//                      {
89	<	//                              jstring addressJ = env->NewStringUTF(url.getAddress().c_str());
90	<	//                              jint portJ = url.getPort();
91	<	//                              jstring pathJ = env->NewStringUTF(url.getPath().c_str());
92	<	//                              jstring programNameJ = env->NewStringUTF(programName.c_str());
93	<	//                              jstring programVersionJ =
94	<	//                                      env->NewStringUTF(programVersion.c_str());
95	<
96	<	//                              jstring pageJ = (jstring)env->CallStaticObjectMethod(cls, mid,
97	<	//                                      addressJ, portJ, pathJ, programNameJ, programVersionJ);
98	<
99	<	//                              const char* pageC = env->GetStringUTFChars(pageJ, 0);
100	<	//                              page = pageC;
101	<	//                              env->ReleaseStringUTFChars(pageJ, pageC);
102	<
103	<	//                              if (page != "unknown host\n" && page != "io exception\n" &&
104	<	//                                      page != "bad headers\n") answer = true;
105	<	//                      }
106	<	//              }
107	<	//      }
83	>	if ((http = socket(PF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
84	>	{
85	>	error(program + ": Socket");
86	>	exit(1);
87	>	}
88	>
89	>	sockaddr_in address;
90	>	hostent* host;
91	>
92	>	address.sin_family = AF_INET;
93	>
94	>	if ((host = gethostbyname(url.getAddress().c_str())) == NULL)
95	>	{
96	>	error(program + ": Host: " + url.getAddress(), true);
97	>	return answer;
98	>	}
99	>
100	>	address.sin_addr = *((in_addr*)*host->h_addr_list);
101	>	address.sin_port = htons(url.getPort());
102	>
103	>	if (connect(http, (sockaddr*)&address, sizeof(sockaddr_in)) ==
104	>	SOCKET_ERROR)
105	>	{
106	>	error(program + ": Connect");
107	>	return answer;
108	>	}
109	>
110	>	if (head)
111	>	{
112	>	putline("HEAD " + url.getPath() + " HTTP/1.1");
113	>	}
114	>	else
115	>	{
116	>	putline("GET " + url.getPath() + " HTTP/1.1");
117	>	}
118	>
119	>	putline("Accept: text/html; text/plain");
120	>	putline("User-Agent: " + agent(true) + ' ' + platform());
121	>
122	>	if (url.getPort() == 80)
123	>	{
124	>	putline("Host: " + url.getAddress());
125	>	}
126	>	else
127	>	{
128	>	char* port = new char[1024];
129	>	sprintf(port, "%u", url.getPort());
130	>
131	>	putline("Host: " + url.getAddress() + ':' + port);
132	>
133	>	delete [] port;
134	>	}
135	>
136	>	putline("Connection: close");
137	>	putline();
138	>
139	>	code response;
140	>	string line;
141	>
142	>	do
143	>	{
144	>	line = getline();
145	>
146	>	if (line.find("HTTP/") != 0)
147	>	{
148	>	return answer;
149	>	}
150	>
151	>	unsigned dot = line.find('.');
152	>	unsigned space = line.find(' ');
153	>
154	>	unsigned major = strtoul(line.substr(5, dot - 5).c_str(), 0, 0);
155	>	unsigned minor = strtoul(line.substr(dot + 1, space - dot - 1).c_str(), 0,
156	>	0);
157	>
158	>	if (major > 1 || minor < 1)
159	>	{
160	>	cerr << program << ": Potentially Incompatible Server: HTTP/" << major
161	>	<< "." << minor << "\n";
162	>
163	>	return answer;
164	>	}
165	>
166	>	response = code(strtoul(line.substr(space + 1).c_str(), 0, 0));
167	>
168	>	if (response < ok) do line = getline(); while (line != "");
169	>	}
170	>	while (response < ok);
171	>
172	>	do
173	>	{
174	>	line = getline();
175	>
176	>	if (line != "")
177	>	{
178	>	unsigned colon = line.find(':');
179	>
180	>	string field = line.substr(0, colon);
181	>	string value = line.substr(colon + 1);
182	>
183	>	while (isspace(value[0])) value.erase(0, 1);
184	>
185	>	//                      if (field =
186	>	}
187	>	}
188	>	while (line != "");
189	>
190	>	switch (response)
191	>	{
192	>	case ok:
193	>	if (debug) cerr << "response = " << response << "\n";
194	>	answer = true;
195	>	break;
196	>	case choices:
197	>	case moved:
198	>	case found:
199	>	if (debug) cerr << "response = " << response << "\n"
200	>	<< "location = " << location << "\n";
201	>	location = getLink(location, url);
202	>	break;
203	>	case notfound:
204	>	case internal:
205	>	if (debug) cerr << "response = " << response << "\n";
206	>	break;
207	>	default:
208	>	if (debug) cerr << "response = " << response << "\n";
209	>	if (response <= 299)
210	>	{
211	>	answer = true;
212	>	}
213	>	else if (response <= 399)
214	>	{
215	>	location = getLink(location, url);
216	>	}
217	>	break;
218	>	}
219
220		return answer;
221		}
#	Line 171 | Line 262 | bool HttpHandler::good()
262
263		void HttpHandler::clear()
264		{
265	+	closesocket(http);
266	+
267	+	type = "";
268	+	length = 0;
269	+	location = "";
270		begin = 0;
271		page = "";
272	+	chunked = false;
273		}
274
275	<	void HttpHandler::setJarPath()
275	>	void HttpHandler::putline(const string line)
276		{
277	<	const string jarFile = "HttpConnector.jar";
278	<	string jarFilePath = jarFile;
277	>	sprintf(buffer, "%s\r\n", line.c_str());
278	>	if (send(http, buffer, strlen(buffer), 0) == SOCKET_ERROR)
279	>	{
280	>	error(program + ": Send");
281	>	exit(1);
282	>	}
283	>	}
284
285	<	ifstream fin(jarFilePath.c_str());
286	<	if (!fin.is_open())
285	>	string HttpHandler::getline()
286	>	{
287	>	string line;
288	>	char byte;
289	>
290	>	do
291		{
292	<	unsigned end = program.rfind(PATH_SEPARATOR);
293	<	if (end != string::npos)
294	<	{
295	<	string path = program.substr(0, end);
296	<
297	<	jarFilePath = path + PATH_SEPARATOR + jarFile;
298	<
299	<	fin.open(jarFilePath.c_str());
194	<	if (!fin.is_open())
195	<	{
196	<	cerr << program << ": Could not find required file: "
197	<	<< jarFile << "\n";
198	<	exit(1);
199	<	}
200	<	else
201	<	{
202	<	fin.close();
203	<	}
204	<	}
205	<	else
206	<	{
207	<	string envPath = getenv("PATH");
208	<
209	<	if (debug) cerr << "envPath = " << envPath << "\n";
210	<
211	<	unsigned begin = 0;
212	<	do
213	<	{
214	<	unsigned end = envPath.find(ENV_SEPARATOR, begin);
215	<	string path = envPath.substr(begin, end);
216	<
217	<	if (debug) cerr << "path = " << path << "\n";
218	<
219	<	jarFilePath = path + PATH_SEPARATOR + jarFile;
220	<
221	<	fin.open(jarFilePath.c_str());
222	<	if (fin.is_open())
223	<	{
224	<	fin.close();
225	<	break;
226	<	}
227	<
228	<	begin = end != string::npos ? end + 1 : string::npos;
229	<	}
230	<	while (begin < envPath.length());
231	<
232	<	if (begin == string::npos)
233	<	{
234	<	cerr << program << ": Could not find required file: "
235	<	<< jarFile << "\n";
236	<	exit(1);
237	<	}
292	>	if (recv(http, &byte, 1, 0) == SOCKET_ERROR)
293	>	{
294	>	error(program + ": Recv");
295	>	}
296	>
297	>	if (byte != '\r' && byte != '\n')
298	>	{
299	>	line += byte;
300		}
301		}
302	<	else
302	>	while (byte != '\n');
303	>
304	>	return line;
305	>	}
306	>
307	>	void HttpHandler::error(const string& prefix, bool host)
308	>	{
309	>	#ifdef _WIN32
310	>	string error;
311	>
312	>	switch (WSAGetLastError())
313		{
314	<	fin.close();
314	>	case WSAEACCES:
315	>	error = "Permission denied.";
316	>	break;
317	>	case WSAEADDRINUSE:
318	>	error = "Address already in use.";
319	>	break;
320	>	case WSAEADDRNOTAVAIL:
321	>	error = "Cannot assign requested address.";
322	>	break;
323	>	case WSAEAFNOSUPPORT:
324	>	error = "Address family not supported by protocol family.";
325	>	break;
326	>	case WSAEALREADY:
327	>	error = "Operation already in progress.";
328	>	break;
329	>	case WSAECONNABORTED:
330	>	error = "Software caused connection abort.";
331	>	break;
332	>	case WSAECONNREFUSED:
333	>	error = "Connection refused.";
334	>	break;
335	>	case WSAECONNRESET:
336	>	error = "Connection reset by peer.";
337	>	break;
338	>	case WSAEDESTADDRREQ:
339	>	error = "Destination address required.";
340	>	break;
341	>	case WSAEFAULT:
342	>	error = "Bad address.";
343	>	break;
344	>	case WSAEHOSTDOWN:
345	>	error = "Host is down.";
346	>	break;
347	>	case WSAEHOSTUNREACH:
348	>	error = "No route to host.";
349	>	break;
350	>	case WSAEINPROGRESS:
351	>	error = "Operation now in progress.";
352	>	break;
353	>	case WSAEINTR:
354	>	error = "Interrupted function call.";
355	>	break;
356	>	case WSAEINVAL:
357	>	error = "Invalid argument.";
358	>	break;
359	>	case WSAEISCONN:
360	>	error = "Socket is already connected.";
361	>	break;
362	>	case WSAEMFILE:
363	>	error = "Too many open files.";
364	>	break;
365	>	case WSAEMSGSIZE:
366	>	error = "Message too long.";
367	>	break;
368	>	case WSAENETDOWN:
369	>	error = "Network is down.";
370	>	break;
371	>	case WSAENETRESET:
372	>	error = "Network dropped connection on reset.";
373	>	break;
374	>	case WSAENETUNREACH:
375	>	error = "Network is unreachable.";
376	>	break;
377	>	case WSAENOBUFS:
378	>	error = "No buffer space available.";
379	>	break;
380	>	case WSAENOPROTOOPT:
381	>	error = "Bad protocol option.";
382	>	break;
383	>	case WSAENOTCONN:
384	>	error = "Socket is not connected.";
385	>	break;
386	>	case WSAENOTSOCK:
387	>	error = "Socket operation on non-socket.";
388	>	break;
389	>	case WSAEOPNOTSUPP:
390	>	error = "Operation not supported.";
391	>	break;
392	>	case WSAEPFNOSUPPORT:
393	>	error = "Protocol family not supported.";
394	>	break;
395	>	case WSAEPROCLIM:
396	>	error = "Too many processes.";
397	>	break;
398	>	case WSAEPROTONOSUPPORT:
399	>	error = "Protocol not supported.";
400	>	break;
401	>	case WSAEPROTOTYPE:
402	>	error = "Protocol wrong type for socket.";
403	>	break;
404	>	case WSAESHUTDOWN:
405	>	error = "Cannot send after socket shutdown.";
406	>	break;
407	>	case WSAESOCKTNOSUPPORT:
408	>	error = "Socket type not supported.";
409	>	break;
410	>	case WSAETIMEDOUT:
411	>	error = "Connection timed out.";
412	>	break;
413	>	case WSATYPE_NOT_FOUND:
414	>	error = "Class type not found.";
415	>	break;
416	>	case WSAEWOULDBLOCK:
417	>	error = "Resource temporarily unavailable.";
418	>	break;
419	>	case WSAHOST_NOT_FOUND:
420	>	error = "Host not found.";
421	>	break;
422	>	case WSA_INVALID_HANDLE:
423	>	error = "Specified event object handle is invalid.";
424	>	break;
425	>	case WSA_INVALID_PARAMETER:
426	>	error = "One or more parameters are invalid.";
427	>	break;
428	>	//      case WSAINVALIDPROCTABLE:
429	>	//              error = "Invalid procedure table from service provider.";
430	>	//              break;
431	>	//      case WSAINVALIDPROVIDER:
432	>	//              error = "Invalid service provider version number.";
433	>	//              break;
434	>	case WSA_IO_INCOMPLETE:
435	>	error = "Overlapped I/O event object not in signaled state.";
436	>	break;
437	>	case WSA_IO_PENDING:
438	>	error = "Overlapped operations will complete later.";
439	>	break;
440	>	case WSA_NOT_ENOUGH_MEMORY:
441	>	error = "Insufficient memory available.";
442	>	break;
443	>	case WSANOTINITIALISED:
444	>	error = "Successful WSAStartup not yet performed.";
445	>	break;
446	>	case WSANO_DATA:
447	>	error = "Valid name, no data record of requested type.";
448	>	break;
449	>	case WSANO_RECOVERY:
450	>	error = "This is a non-recoverable error.";
451	>	break;
452	>	//      case WSAPROVIDERFAILEDINIT:
453	>	//              error = "Unable to initialize a service provider.";
454	>	//              break;
455	>	case WSASYSCALLFAILURE:
456	>	error = "System call failure.";
457	>	break;
458	>	case WSASYSNOTREADY:
459	>	error = "Network subsystem is unavailable.";
460	>	break;
461	>	case WSATRY_AGAIN:
462	>	error = "Non-authoritative host not found.";
463	>	break;
464	>	case WSAVERNOTSUPPORTED:
465	>	error = "WINSOCK.DLL version out of range.";
466	>	break;
467	>	case WSAEDISCON:
468	>	error = "Graceful shutdown in progress.";
469	>	break;
470	>	case WSA_OPERATION_ABORTED:
471	>	error = "Overlapped operation aborted.";
472	>	break;
473	>	default:
474	>	error = "Unknown error.";
475	>	break;
476		}
477
478	<	string jarPath = "-Djava.class.path=" + jarFilePath;
479	<
480	<	//      this->jarPath = new char[jarPath.length()];
481	<	//      strcpy(this->jarPath, jarPath.c_str());
478	>	cerr << prefix << ": " << error << "\n";
479	>	#else
480	>	if (host)
481	>	{
482	>	herror(prefix.c_str());
483	>	}
484	>	else
485	>	{
486	>	perror(prefix.c_str());
487	>	}
488	>	#endif // _WIN32
489		}

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