-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- * E-mail:
- * <brain@chatspike.net>
- * <Craig@chatspike.net>
- *
- * Written by Craig Edwards, Craig McLure, and others.
- * This program is free but copyrighted software; see
- * the file COPYING for details.
+ * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
+ * Copyright (C) 2006-2008 Craig Edwards <craigedwards@brainbox.cc>
+ * Copyright (C) 2007 John Brooks <john.brooks@dereferenced.net>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
*
- * ---------------------------------------------------
+ * This file is part of InspIRCd. InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-using namespace std;
-#include <stdio.h>
-#include "users.h"
-#include "channels.h"
-#include "modules.h"
-#include "inspsocket.h"
-#include "helperfuncs.h"
+#include "inspircd.h"
+#include "httpd.h"
/* $ModDesc: Provides HTTP serving facilities to modules */
+/* $ModDep: httpd.h */
+
+class ModuleHttpServer;
-static Server *Srv;
-extern time_t TIME;
+static ModuleHttpServer* HttpModule;
+static bool claimed;
+static std::set<HttpServerSocket*> sockets;
+/** HTTP socket states
+ */
enum HttpState
{
- HTTP_LISTEN = 0,
- HTTP_SERVE_WAIT_REQUEST = 1,
- HTTP_SERVE_SEND_DATA = 2
+ HTTP_SERVE_WAIT_REQUEST = 0, /* Waiting for a full request */
+ HTTP_SERVE_RECV_POSTDATA = 1, /* Waiting to finish recieving POST data */
+ HTTP_SERVE_SEND_DATA = 2 /* Sending response */
};
-class HttpSocket : public InspSocket
+/** A socket used for HTTP transport
+ */
+class HttpServerSocket : public BufferedSocket
{
- FileReader* index;
HttpState InternalState;
- std::stringstream headers;
+ std::string ip;
+
+ HTTPHeaders headers;
+ std::string reqbuffer;
+ std::string postdata;
+ unsigned int postsize;
+ std::string request_type;
+ std::string uri;
+ std::string http_version;
public:
+ const time_t createtime;
- HttpSocket(std::string host, int port, bool listening, unsigned long maxtime, FileReader* index_page) : InspSocket(host, port, listening, maxtime), index(index_page)
+ HttpServerSocket(int newfd, const std::string& IP, ListenSocket* via, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server)
+ : BufferedSocket(newfd), ip(IP), postsize(0)
+ , createtime(ServerInstance->Time())
{
- log(DEBUG,"HttpSocket constructor");
- InternalState = HTTP_LISTEN;
+ InternalState = HTTP_SERVE_WAIT_REQUEST;
+
+ FOREACH_MOD(I_OnHookIO, OnHookIO(this, via));
+ if (GetIOHook())
+ GetIOHook()->OnStreamSocketAccept(this, client, server);
}
- HttpSocket(int newfd, char* ip, FileReader* ind) : InspSocket(newfd, ip), index(ind)
+ ~HttpServerSocket()
{
- InternalState = HTTP_SERVE_WAIT_REQUEST;
+ sockets.erase(this);
+ }
+
+ virtual void OnError(BufferedSocketError)
+ {
+ ServerInstance->GlobalCulls.AddItem(this);
}
- virtual int OnIncomingConnection(int newsock, char* ip)
+ std::string Response(int response)
{
- if (InternalState == HTTP_LISTEN)
+ switch (response)
{
- HttpSocket* s = new HttpSocket(newsock, ip, index);
- Srv->AddSocket(s);
+ case 100:
+ return "CONTINUE";
+ case 101:
+ return "SWITCHING PROTOCOLS";
+ case 200:
+ return "OK";
+ case 201:
+ return "CREATED";
+ case 202:
+ return "ACCEPTED";
+ case 203:
+ return "NON-AUTHORITATIVE INFORMATION";
+ case 204:
+ return "NO CONTENT";
+ case 205:
+ return "RESET CONTENT";
+ case 206:
+ return "PARTIAL CONTENT";
+ case 300:
+ return "MULTIPLE CHOICES";
+ case 301:
+ return "MOVED PERMANENTLY";
+ case 302:
+ return "FOUND";
+ case 303:
+ return "SEE OTHER";
+ case 304:
+ return "NOT MODIFIED";
+ case 305:
+ return "USE PROXY";
+ case 307:
+ return "TEMPORARY REDIRECT";
+ case 400:
+ return "BAD REQUEST";
+ case 401:
+ return "UNAUTHORIZED";
+ case 402:
+ return "PAYMENT REQUIRED";
+ case 403:
+ return "FORBIDDEN";
+ case 404:
+ return "NOT FOUND";
+ case 405:
+ return "METHOD NOT ALLOWED";
+ case 406:
+ return "NOT ACCEPTABLE";
+ case 407:
+ return "PROXY AUTHENTICATION REQUIRED";
+ case 408:
+ return "REQUEST TIMEOUT";
+ case 409:
+ return "CONFLICT";
+ case 410:
+ return "GONE";
+ case 411:
+ return "LENGTH REQUIRED";
+ case 412:
+ return "PRECONDITION FAILED";
+ case 413:
+ return "REQUEST ENTITY TOO LARGE";
+ case 414:
+ return "REQUEST-URI TOO LONG";
+ case 415:
+ return "UNSUPPORTED MEDIA TYPE";
+ case 416:
+ return "REQUESTED RANGE NOT SATISFIABLE";
+ case 417:
+ return "EXPECTATION FAILED";
+ case 500:
+ return "INTERNAL SERVER ERROR";
+ case 501:
+ return "NOT IMPLEMENTED";
+ case 502:
+ return "BAD GATEWAY";
+ case 503:
+ return "SERVICE UNAVAILABLE";
+ case 504:
+ return "GATEWAY TIMEOUT";
+ case 505:
+ return "HTTP VERSION NOT SUPPORTED";
+ default:
+ return "WTF";
+ break;
+
}
- return true;
}
- virtual void OnClose()
+ void SendHTTPError(int response)
{
+ HTTPHeaders empty;
+ std::string data = "<html><head></head><body>Server error "+ConvToStr(response)+": "+Response(response)+"<br>"+
+ "<small>Powered by <a href='http://www.inspircd.org'>InspIRCd</a></small></body></html>";
+
+ SendHeaders(data.length(), response, empty);
+ WriteData(data);
}
- void SendHeaders()
+ void SendHeaders(unsigned long size, int response, HTTPHeaders &rheaders)
{
- struct tm *timeinfo = localtime(&TIME);
- this->Write("HTTP/1.1 200 OK\r\nDate: ");
- this->Write(asctime(timeinfo));
- this->Write("Server: InspIRCd/m_http.so/1.1\r\nContent-Length: "+ConvToStr(index->ContentSize())+
- "\r\nConnection: close\r\nContent-Type: text/html\r\n\r\n");
+
+ WriteData(http_version + " "+ConvToStr(response)+" "+Response(response)+"\r\n");
+
+ time_t local = ServerInstance->Time();
+ struct tm *timeinfo = gmtime(&local);
+ char *date = asctime(timeinfo);
+ date[strlen(date) - 1] = '\0';
+ rheaders.CreateHeader("Date", date);
+
+ rheaders.CreateHeader("Server", BRANCH);
+ rheaders.SetHeader("Content-Length", ConvToStr(size));
+
+ if (size)
+ rheaders.CreateHeader("Content-Type", "text/html");
+ else
+ rheaders.RemoveHeader("Content-Type");
+
+ /* Supporting Connection: keep-alive causes a whole world of hurt syncronizing timeouts,
+ * so remove it, its not essential for what we need.
+ */
+ rheaders.SetHeader("Connection", "Close");
+
+ WriteData(rheaders.GetFormattedHeaders());
+ WriteData("\r\n");
}
- virtual bool OnDataReady()
+ void OnDataReady()
{
- char* data = this->Read();
- /* Check that the data read is a valid pointer and it has some content */
- if (data && *data)
+ if (InternalState == HTTP_SERVE_RECV_POSTDATA)
{
- headers << data;
+ postdata.append(recvq);
+ if (postdata.length() >= postsize)
+ ServeData();
+ }
+ else
+ {
+ reqbuffer.append(recvq);
+
+ if (reqbuffer.length() >= 8192)
+ {
+ ServerInstance->Logs->Log("m_httpd",DEBUG, "m_httpd dropped connection due to an oversized request buffer");
+ reqbuffer.clear();
+ SetError("Buffer");
+ }
+
+ if (InternalState == HTTP_SERVE_WAIT_REQUEST)
+ CheckRequestBuffer();
+ }
+ }
+
+ void CheckRequestBuffer()
+ {
+ std::string::size_type reqend = reqbuffer.find("\r\n\r\n");
+ if (reqend == std::string::npos)
+ return;
+
+ // We have the headers; parse them all
+ std::string::size_type hbegin = 0, hend;
+ while ((hend = reqbuffer.find("\r\n", hbegin)) != std::string::npos)
+ {
+ if (hbegin == hend)
+ break;
- if (headers.str().find("\r\n\r\n") != std::string::npos)
+ if (request_type.empty())
{
- /* Headers are complete */
- InternalState = HTTP_SERVE_SEND_DATA;
- SendHeaders();
+ std::istringstream cheader(std::string(reqbuffer, hbegin, hend - hbegin));
+ cheader >> request_type;
+ cheader >> uri;
+ cheader >> http_version;
- this->Write(index->Contents());
+ if (request_type.empty() || uri.empty() || http_version.empty())
+ {
+ SendHTTPError(400);
+ return;
+ }
- return false;
+ hbegin = hend + 2;
+ continue;
}
- return true;
+
+ std::string cheader = reqbuffer.substr(hbegin, hend - hbegin);
+
+ std::string::size_type fieldsep = cheader.find(':');
+ if ((fieldsep == std::string::npos) || (fieldsep == 0) || (fieldsep == cheader.length() - 1))
+ {
+ SendHTTPError(400);
+ return;
+ }
+
+ headers.SetHeader(cheader.substr(0, fieldsep), cheader.substr(fieldsep + 2));
+
+ hbegin = hend + 2;
}
- else
+
+ reqbuffer.erase(0, reqend + 4);
+
+ std::transform(request_type.begin(), request_type.end(), request_type.begin(), ::toupper);
+ std::transform(http_version.begin(), http_version.end(), http_version.begin(), ::toupper);
+
+ if ((http_version != "HTTP/1.1") && (http_version != "HTTP/1.0"))
{
- /* Bastard client closed the socket on us!
- * Oh wait, theyre SUPPOSED to do that!
- */
- return false;
+ SendHTTPError(505);
+ return;
}
- }
-};
-
-class ModuleHttp : public Module
-{
- int port;
- std::string host;
- std::string bindip;
- std::string indexfile;
- FileReader index;
+ if (headers.IsSet("Content-Length") && (postsize = ConvToInt(headers.GetHeader("Content-Length"))) > 0)
+ {
+ InternalState = HTTP_SERVE_RECV_POSTDATA;
- HttpSocket* http;
+ if (reqbuffer.length() >= postsize)
+ {
+ postdata = reqbuffer.substr(0, postsize);
+ reqbuffer.erase(0, postsize);
+ }
+ else if (!reqbuffer.empty())
+ {
+ postdata = reqbuffer;
+ reqbuffer.clear();
+ }
- public:
+ if (postdata.length() >= postsize)
+ ServeData();
- void ReadConfig()
- {
- ConfigReader c;
- this->host = c.ReadValue("http", "host", 0);
- this->bindip = c.ReadValue("http", "ip", 0);
- this->port = c.ReadInteger("http", "port", 0, true);
- this->indexfile = c.ReadValue("http", "index", 0);
+ return;
+ }
- index.LoadFile(this->indexfile);
+ ServeData();
}
- void CreateListener()
+ void ServeData()
{
- http = new HttpSocket(this->bindip, this->port, true, 0, &index);
- if ((http) && (http->GetState() == I_LISTENING))
+ InternalState = HTTP_SERVE_SEND_DATA;
+
+ claimed = false;
+ HTTPRequest acl((Module*)HttpModule, "httpd_acl", request_type, uri, &headers, this, ip, postdata);
+ acl.Send();
+ if (!claimed)
{
- Srv->AddSocket(http);
+ HTTPRequest url((Module*)HttpModule, "httpd_url", request_type, uri, &headers, this, ip, postdata);
+ url.Send();
+ if (!claimed)
+ {
+ SendHTTPError(404);
+ }
}
}
- ModuleHttp(Server* Me) : Module::Module(Me)
+ void Page(std::stringstream* n, int response, HTTPHeaders *hheaders)
{
- Srv = Me;
- ReadConfig();
- CreateListener();
+ SendHeaders(n->str().length(), response, *hheaders);
+ WriteData(n->str());
}
+};
+
+class ModuleHttpServer : public Module
+{
+ unsigned int timeoutsec;
- void Implements(char* List)
+ public:
+
+ void init()
{
- List[I_OnEvent] = List[I_OnRequest] = 1;
+ HttpModule = this;
+ Implementation eventlist[] = { I_OnAcceptConnection, I_OnBackgroundTimer, I_OnRehash, I_OnUnloadModule };
+ ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
+ OnRehash(NULL);
}
- virtual ~ModuleHttp()
+ void OnRehash(User* user)
{
- Srv->DelSocket(http);
+ ConfigTag* tag = ServerInstance->Config->ConfValue("httpd");
+ timeoutsec = tag->getInt("timeout");
}
- virtual Version GetVersion()
+ void OnRequest(Request& request)
{
- return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
+ if (strcmp(request.id, "HTTP-DOC") != 0)
+ return;
+ HTTPDocumentResponse& resp = static_cast<HTTPDocumentResponse&>(request);
+ claimed = true;
+ resp.src.sock->Page(resp.document, resp.responsecode, &resp.headers);
+ }
+
+ ModResult OnAcceptConnection(int nfd, ListenSocket* from, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server)
+ {
+ if (from->bind_tag->getString("type") != "httpd")
+ return MOD_RES_PASSTHRU;
+ int port;
+ std::string incomingip;
+ irc::sockets::satoap(*client, incomingip, port);
+ sockets.insert(new HttpServerSocket(nfd, incomingip, from, client, server));
+ return MOD_RES_ALLOW;
}
-};
+ void OnBackgroundTimer(time_t curtime)
+ {
+ if (!timeoutsec)
+ return;
-class ModuleHttpFactory : public ModuleFactory
-{
- public:
- ModuleHttpFactory()
+ time_t oldest_allowed = curtime - timeoutsec;
+ for (std::set<HttpServerSocket*>::const_iterator i = sockets.begin(); i != sockets.end(); )
+ {
+ HttpServerSocket* sock = *i;
+ ++i;
+ if (sock->createtime < oldest_allowed)
+ {
+ sock->cull();
+ delete sock;
+ }
+ }
+ }
+
+ void OnUnloadModule(Module* mod)
{
+ for (std::set<HttpServerSocket*>::const_iterator i = sockets.begin(); i != sockets.end(); )
+ {
+ HttpServerSocket* sock = *i;
+ ++i;
+ if (sock->GetIOHook() == mod)
+ {
+ sock->cull();
+ delete sock;
+ }
+ }
}
-
- ~ModuleHttpFactory()
+
+ CullResult cull()
{
+ std::set<HttpServerSocket*> local;
+ local.swap(sockets);
+ for (std::set<HttpServerSocket*>::const_iterator i = local.begin(); i != local.end(); ++i)
+ {
+ HttpServerSocket* sock = *i;
+ sock->cull();
+ delete sock;
+ }
+ return Module::cull();
}
-
- virtual Module * CreateModule(Server* Me)
+
+ virtual Version GetVersion()
{
- return new ModuleHttp(Me);
+ return Version("Provides HTTP serving facilities to modules", VF_VENDOR);
}
};
-
-extern "C" void * init_module( void )
-{
- return new ModuleHttpFactory;
-}
+MODULE_INIT(ModuleHttpServer)
projects / user / henk / code / inspircd.git / blobdiff