1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2009 InspIRCd Development Team
6 * See: http://wiki.inspircd.org/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
17 /* $ModDesc: Provides HTTP serving facilities to modules */
18 /* $ModDep: httpd.h */
20 class ModuleHttpServer;
22 static ModuleHttpServer* HttpModule;
25 /** HTTP socket states
29 HTTP_SERVE_WAIT_REQUEST = 0, /* Waiting for a full request */
30 HTTP_SERVE_RECV_POSTDATA = 1, /* Waiting to finish recieving POST data */
31 HTTP_SERVE_SEND_DATA = 2 /* Sending response */
34 /** A socket used for HTTP transport
36 class HttpServerSocket : public BufferedSocket
39 HttpState InternalState;
43 std::string reqbuffer;
45 unsigned int postsize;
46 std::string request_type;
48 std::string http_version;
52 HttpServerSocket(int newfd, const char* IP, FileReader* ind)
53 : BufferedSocket(newfd), index(ind), ip(IP), postsize(0)
55 InternalState = HTTP_SERVE_WAIT_REQUEST;
58 FileReader* GetIndex()
67 virtual void OnError(BufferedSocketError)
71 std::string Response(int response)
78 return "SWITCHING PROTOCOLS";
86 return "NON-AUTHORITATIVE INFORMATION";
90 return "RESET CONTENT";
92 return "PARTIAL CONTENT";
94 return "MULTIPLE CHOICES";
96 return "MOVED PERMENANTLY";
102 return "NOT MODIFIED";
106 return "TEMPORARY REDIRECT";
108 return "BAD REQUEST";
110 return "UNAUTHORIZED";
112 return "PAYMENT REQUIRED";
118 return "METHOD NOT ALLOWED";
120 return "NOT ACCEPTABLE";
122 return "PROXY AUTHENTICATION REQUIRED";
124 return "REQUEST TIMEOUT";
130 return "LENGTH REQUIRED";
132 return "PRECONDITION FAILED";
134 return "REQUEST ENTITY TOO LARGE";
136 return "REQUEST-URI TOO LONG";
138 return "UNSUPPORTED MEDIA TYPE";
140 return "REQUESTED RANGE NOT SATISFIABLE";
142 return "EXPECTATION FAILED";
144 return "INTERNAL SERVER ERROR";
146 return "NOT IMPLEMENTED";
148 return "BAD GATEWAY";
150 return "SERVICE UNAVAILABLE";
152 return "GATEWAY TIMEOUT";
154 return "HTTP VERSION NOT SUPPORTED";
162 void SendHTTPError(int response)
165 std::string data = "<html><head></head><body>Server error "+ConvToStr(response)+": "+Response(response)+"<br>"+
166 "<small>Powered by <a href='http://www.inspircd.org'>InspIRCd</a></small></body></html>";
168 SendHeaders(data.length(), response, empty);
172 void SendHeaders(unsigned long size, int response, HTTPHeaders &rheaders)
175 WriteData(http_version + " "+ConvToStr(response)+" "+Response(response)+"\r\n");
177 time_t local = ServerInstance->Time();
178 struct tm *timeinfo = gmtime(&local);
179 char *date = asctime(timeinfo);
180 date[strlen(date) - 1] = '\0';
181 rheaders.CreateHeader("Date", date);
183 rheaders.CreateHeader("Server", "InspIRCd/m_httpd.so/1.2");
184 rheaders.SetHeader("Content-Length", ConvToStr(size));
187 rheaders.CreateHeader("Content-Type", "text/html");
189 rheaders.RemoveHeader("Content-Type");
191 /* Supporting Connection: keep-alive causes a whole world of hurt syncronizing timeouts,
192 * so remove it, its not essential for what we need.
194 rheaders.SetHeader("Connection", "Close");
196 WriteData(rheaders.GetFormattedHeaders());
202 if (InternalState == HTTP_SERVE_RECV_POSTDATA)
204 postdata.append(recvq);
205 if (postdata.length() >= postsize)
210 reqbuffer.append(recvq);
212 if (reqbuffer.length() >= 8192)
214 ServerInstance->Logs->Log("m_httpd",DEBUG, "m_httpd dropped connection due to an oversized request buffer");
219 if (InternalState == HTTP_SERVE_WAIT_REQUEST)
220 CheckRequestBuffer();
224 void CheckRequestBuffer()
226 std::string::size_type reqend = reqbuffer.find("\r\n\r\n");
227 if (reqend == std::string::npos)
230 // We have the headers; parse them all
231 std::string::size_type hbegin = 0, hend;
232 while ((hend = reqbuffer.find("\r\n", hbegin)) != std::string::npos)
237 if (request_type.empty())
239 std::istringstream cheader(std::string(reqbuffer, hbegin, hend - hbegin));
240 cheader >> request_type;
242 cheader >> http_version;
244 if (request_type.empty() || uri.empty() || http_version.empty())
254 std::string cheader = reqbuffer.substr(hbegin, hend - hbegin);
256 std::string::size_type fieldsep = cheader.find(':');
257 if ((fieldsep == std::string::npos) || (fieldsep == 0) || (fieldsep == cheader.length() - 1))
263 headers.SetHeader(cheader.substr(0, fieldsep), cheader.substr(fieldsep + 2));
268 reqbuffer.erase(0, reqend + 4);
270 std::transform(request_type.begin(), request_type.end(), request_type.begin(), ::toupper);
271 std::transform(http_version.begin(), http_version.end(), http_version.begin(), ::toupper);
273 if ((http_version != "HTTP/1.1") && (http_version != "HTTP/1.0"))
279 if (headers.IsSet("Content-Length") && (postsize = atoi(headers.GetHeader("Content-Length").c_str())) != 0)
281 InternalState = HTTP_SERVE_RECV_POSTDATA;
283 if (reqbuffer.length() >= postsize)
285 postdata = reqbuffer.substr(0, postsize);
286 reqbuffer.erase(0, postsize);
288 else if (!reqbuffer.empty())
290 postdata = reqbuffer;
294 if (postdata.length() >= postsize)
305 InternalState = HTTP_SERVE_SEND_DATA;
307 if ((request_type == "GET") && (uri == "/"))
310 SendHeaders(index->ContentSize(), 200, empty);
311 WriteData(index->Contents());
316 HTTPRequest httpr(request_type,uri,&headers,this,ip,postdata);
317 Event acl((char*)&httpr, (Module*)HttpModule, "httpd_acl");
318 acl.Send(ServerInstance);
321 Event e((char*)&httpr, (Module*)HttpModule, "httpd_url");
322 e.Send(ServerInstance);
331 void Page(std::stringstream* n, int response, HTTPHeaders *hheaders)
333 SendHeaders(n->str().length(), response, *hheaders);
338 /** Spawn HTTP sockets from a listener
340 class HttpListener : public ListenSocketBase
345 HttpListener(InspIRCd* Instance, FileReader *idx, int port, const std::string &addr) : ListenSocketBase(Instance, port, addr)
350 virtual void OnAcceptReady(int nfd)
353 std::string incomingip;
354 irc::sockets::satoap(&client, incomingip, port);
355 new HttpServerSocket(nfd, incomingip.c_str(), index);
359 class ModuleHttpServer : public Module
361 std::vector<HttpServerSocket *> httpsocks;
362 std::vector<HttpListener *> httplisteners;
370 std::string indexfile;
373 ConfigReader c(ServerInstance);
375 httpsocks.clear(); // XXX this will BREAK if this module is made rehashable
376 httplisteners.clear();
378 for (int i = 0; i < c.Enumerate("http"); i++)
380 host = c.ReadValue("http", "host", i);
381 bindip = c.ReadValue("http", "ip", i);
382 port = c.ReadInteger("http", "port", i, true);
383 indexfile = c.ReadValue("http", "index", i);
384 index = new FileReader(ServerInstance, indexfile);
385 if (!index->Exists())
386 throw ModuleException("Can't read index file: "+indexfile);
387 http = new HttpListener(ServerInstance, index, port, (char *)bindip.c_str()); // XXX this cast SUCKS.
388 httplisteners.push_back(http);
392 ModuleHttpServer(InspIRCd* Me) : Module(Me)
396 Implementation eventlist[] = { I_OnRequest };
397 ServerInstance->Modules->Attach(eventlist, this, 1);
400 virtual const char* OnRequest(Request* request)
403 HTTPDocument* doc = (HTTPDocument*)request->GetData();
404 HttpServerSocket* sock = (HttpServerSocket*)doc->sock;
405 sock->Page(doc->GetDocument(), doc->GetResponseCode(), &doc->headers);
410 virtual ~ModuleHttpServer()
412 for (size_t i = 0; i < httplisteners.size(); i++)
414 delete httplisteners[i];
417 for (size_t i = 0; i < httpsocks.size(); i++)
419 ServerInstance->SE->DelFd(httpsocks[i]);
420 httpsocks[i]->Close();
421 delete httpsocks[i]->GetIndex();
425 virtual Version GetVersion()
427 return Version("$Id$", VF_VENDOR | VF_SERVICEPROVIDER, API_VERSION);
431 MODULE_INIT(ModuleHttpServer)