* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
- * InspIRCd: (C) 2002-2007 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ * InspIRCd: (C) 2002-2009 InspIRCd Development Team
+ * See: http://wiki.inspircd.org/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*/
#include "inspircd.h"
-#include <algorithm>
-#include "modules.h"
#include "httpd.h"
/* $ModDesc: Provides HTTP serving facilities to modules */
+/* $ModDep: httpd.h */
class ModuleHttpServer;
*/
enum HttpState
{
- HTTP_LISTEN = 0,
- HTTP_SERVE_WAIT_REQUEST = 1,
- HTTP_SERVE_RECV_POSTDATA = 2,
- HTTP_SERVE_SEND_DATA = 3
-};
-
-class HttpServerSocket;
-
-/** This class is used to handle HTTP socket timeouts
- */
-class HttpServerTimeout : public InspTimer
-{
- private:
- /** HttpServerSocket we are attached to
- */
- HttpServerSocket* s;
- /** Socketengine the file descriptor is in
- */
- SocketEngine* SE;
- public:
- /** Attach timeout to HttpServerSocket
- */
- HttpServerTimeout(HttpServerSocket* sock, SocketEngine* engine);
- /** Handle timer tick
- */
- void Tick(time_t TIME);
+ 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 */
};
/** A socket used for HTTP transport
*/
-class HttpServerSocket : public InspSocket
+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;
- unsigned int postsize;
- HttpServerTimeout* Timeout;
public:
- HttpServerSocket(InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, FileReader* index_page) : InspSocket(SI, host, port, listening, maxtime), index(index_page), postsize(0)
- {
- InternalState = HTTP_LISTEN;
- Timeout = NULL;
- }
-
- HttpServerSocket(InspIRCd* SI, int newfd, char* ip, FileReader* ind) : InspSocket(SI, newfd, ip), index(ind), postsize(0)
+ HttpServerSocket(int newfd, const char* IP, FileReader* ind)
+ : BufferedSocket(newfd), index(ind), ip(IP), postsize(0)
{
InternalState = HTTP_SERVE_WAIT_REQUEST;
- Timeout = new HttpServerTimeout(this, Instance->SE);
- Instance->Timers->AddTimer(Timeout);
}
FileReader* GetIndex()
~HttpServerSocket()
{
- if (Timeout)
- {
- if (Instance->Time() < Timeout->GetTimer())
- Instance->Timers->DelTimer(Timeout);
- Timeout = NULL;
- }
- }
-
- virtual int OnIncomingConnection(int newsock, char* ip)
- {
- if (InternalState == HTTP_LISTEN)
- {
- HttpServerSocket* s = new HttpServerSocket(this->Instance, newsock, ip, index);
- s = s; /* Stop GCC whining */
- }
- return true;
}
- virtual void OnClose()
+ virtual void OnError(BufferedSocketError)
{
}
default:
return "WTF";
break;
-
+
}
}
- void SendHeaders(unsigned long size, int response, const std::string &extraheaders)
+ void SendHTTPError(int response)
{
- time_t local = this->Instance->Time();
+ 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(unsigned long size, int response, HTTPHeaders &rheaders)
+ {
+
+ WriteData(http_version + " "+ConvToStr(response)+" "+Response(response)+"\r\n");
+
+ time_t local = ServerInstance->Time();
struct tm *timeinfo = gmtime(&local);
- this->Write("HTTP/1.1 "+ConvToStr(response)+" "+Response(response)+"\r\nDate: ");
- this->Write(asctime(timeinfo));
- if (extraheaders.empty())
+ char *date = asctime(timeinfo);
+ date[strlen(date) - 1] = '\0';
+ rheaders.CreateHeader("Date", date);
+
+ rheaders.CreateHeader("Server", "InspIRCd/m_httpd.so/1.2");
+ 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");
+ }
+
+ void OnDataReady()
+ {
+ if (InternalState == HTTP_SERVE_RECV_POSTDATA)
{
- this->Write("Content-Type: text/html\r\n");
+ postdata.append(recvq);
+ if (postdata.length() >= postsize)
+ ServeData();
}
else
{
- this->Write(extraheaders);
+ 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();
}
- this->Write("Server: InspIRCd/m_httpd.so/1.1\r\nContent-Length: "+ConvToStr(size)+
- "\r\nConnection: close\r\n\r\n");
}
- virtual bool OnDataReady()
+ void CheckRequestBuffer()
{
- char* data = this->Read();
+ std::string::size_type reqend = reqbuffer.find("\r\n\r\n");
+ if (reqend == std::string::npos)
+ return;
- /* Check that the data read is a valid pointer and it has some content */
- if (data && *data)
+ // We have the headers; parse them all
+ std::string::size_type hbegin = 0, hend;
+ while ((hend = reqbuffer.find("\r\n", hbegin)) != std::string::npos)
{
- headers << data;
+ if (hbegin == hend)
+ break;
- if (headers.str().find("\r\n\r\n") != std::string::npos)
+ if (request_type.empty())
{
- if (request_type.empty())
- {
- headers >> request_type;
- headers >> uri;
- headers >> http_version;
+ std::istringstream cheader(std::string(reqbuffer, hbegin, hend - hbegin));
+ cheader >> request_type;
+ cheader >> uri;
+ cheader >> http_version;
- 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 ((InternalState == HTTP_SERVE_WAIT_REQUEST) && (request_type == "POST"))
- {
- /* Do we need to fetch postdata? */
- postdata.clear();
- InternalState = HTTP_SERVE_RECV_POSTDATA;
- std::string header_item;
- while (headers >> header_item)
- {
- if (header_item == "Content-Length:")
- {
- headers >> header_item;
- postsize = atoi(header_item.c_str());
- }
- }
- if (!postsize)
- {
- InternalState = HTTP_SERVE_SEND_DATA;
- SendHeaders(0, 400, "");
- Timeout = new HttpServerTimeout(this, Instance->SE);
- Instance->Timers->AddTimer(Timeout);
- }
- else
- {
- std::string::size_type x = headers.str().find("\r\n\r\n");
- postdata = headers.str().substr(x+4, headers.str().length());
- /* Get content length and store */
- if (postdata.length() >= postsize)
- ServeData();
- }
- }
- else if (InternalState == HTTP_SERVE_RECV_POSTDATA)
+ if (request_type.empty() || uri.empty() || http_version.empty())
{
- /* Add postdata, once we have it all, send the event */
- postdata.append(data);
- if (postdata.length() >= postsize)
- ServeData();
+ SendHTTPError(400);
+ return;
}
- else
- {
- ServeData();
- }
- return true;
+
+ 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"))
{
- return false;
+ SendHTTPError(505);
+ return;
+ }
+
+ if (headers.IsSet("Content-Length") && (postsize = atoi(headers.GetHeader("Content-Length").c_str())) != 0)
+ {
+ InternalState = HTTP_SERVE_RECV_POSTDATA;
+
+ if (reqbuffer.length() >= postsize)
+ {
+ postdata = reqbuffer.substr(0, postsize);
+ reqbuffer.erase(0, postsize);
+ }
+ else if (!reqbuffer.empty())
+ {
+ postdata = reqbuffer;
+ reqbuffer.clear();
+ }
+
+ if (postdata.length() >= postsize)
+ ServeData();
+
+ return;
}
+
+ ServeData();
}
void ServeData()
{
- /* Headers are complete */
InternalState = HTTP_SERVE_SEND_DATA;
- Instance->Timers->DelTimer(Timeout);
- Timeout = NULL;
-
- if ((http_version != "HTTP/1.1") && (http_version != "HTTP/1.0"))
+ if ((request_type == "GET") && (uri == "/"))
{
- SendHeaders(0, 505, "");
+ HTTPHeaders empty;
+ SendHeaders(index->ContentSize(), 200, empty);
+ WriteData(index->Contents());
}
else
{
- if ((request_type == "GET") && (uri == "/"))
+ claimed = false;
+ HTTPRequest httpr(request_type,uri,&headers,this,ip,postdata);
+ Event acl((char*)&httpr, (Module*)HttpModule, "httpd_acl");
+ acl.Send();
+ if (!claimed)
{
- SendHeaders(index->ContentSize(), 200, "");
- this->Write(index->Contents());
- }
- else
- {
- claimed = false;
- HTTPRequest httpr(request_type,uri,&headers,this,this->GetIP(),postdata);
Event e((char*)&httpr, (Module*)HttpModule, "httpd_url");
- e.Send(this->Instance);
+ e.Send();
if (!claimed)
{
- SendHeaders(0, 404, "");
+ SendHTTPError(404);
}
}
}
- Timeout = new HttpServerTimeout(this, Instance->SE);
- Instance->Timers->AddTimer(Timeout);
}
- void Page(std::stringstream* n, int response, std::string& extraheaders)
+ void Page(std::stringstream* n, int response, HTTPHeaders *hheaders)
{
- SendHeaders(n->str().length(), response, extraheaders);
- this->Write(n->str());
+ SendHeaders(n->str().length(), response, *hheaders);
+ WriteData(n->str());
}
};
-HttpServerTimeout::HttpServerTimeout(HttpServerSocket* sock, SocketEngine* engine) : InspTimer(60, time(NULL)), s(sock), SE(engine)
+/** Spawn HTTP sockets from a listener
+ */
+class HttpListener : public ListenSocketBase
{
-}
+ FileReader* index;
-void HttpServerTimeout::Tick(time_t TIME)
-{
- SE->DelFd(s);
- s->Close();
- delete s;
-}
+ public:
+ HttpListener(FileReader *idx, int port, const std::string &addr) : ListenSocketBase(port, addr)
+ {
+ this->index = idx;
+ }
+
+ virtual void OnAcceptReady(int nfd)
+ {
+ int port;
+ std::string incomingip;
+ irc::sockets::satoap(&client, incomingip, port);
+ new HttpServerSocket(nfd, incomingip.c_str(), index);
+ }
+};
class ModuleHttpServer : public Module
{
- std::vector<HttpServerSocket*> httpsocks;
+ std::vector<HttpServerSocket *> httpsocks;
+ std::vector<HttpListener *> httplisteners;
public:
void ReadConfig()
std::string bindip;
std::string indexfile;
FileReader* index;
- HttpServerSocket* http;
- ConfigReader c(ServerInstance);
+ HttpListener *http;
+ ConfigReader c;
- httpsocks.clear();
+ httpsocks.clear(); // XXX this will BREAK if this module is made rehashable
+ httplisteners.clear();
for (int i = 0; i < c.Enumerate("http"); i++)
{
bindip = c.ReadValue("http", "ip", i);
port = c.ReadInteger("http", "port", i, true);
indexfile = c.ReadValue("http", "index", i);
- index = new FileReader(ServerInstance, indexfile);
+ index = new FileReader(indexfile);
if (!index->Exists())
throw ModuleException("Can't read index file: "+indexfile);
- http = new HttpServerSocket(ServerInstance, bindip, port, true, 0, index);
- httpsocks.push_back(http);
+ http = new HttpListener(index, port, (char *)bindip.c_str()); // XXX this cast SUCKS.
+ httplisteners.push_back(http);
}
}
- ModuleHttpServer(InspIRCd* Me) : Module(Me)
- {
+ ModuleHttpServer() {
ReadConfig();
+ HttpModule = this;
+ Implementation eventlist[] = { I_OnRequest };
+ ServerInstance->Modules->Attach(eventlist, this, 1);
}
- void OnEvent(Event* event)
- {
- }
-
- char* OnRequest(Request* request)
+ virtual const char* OnRequest(Request* request)
{
claimed = true;
HTTPDocument* doc = (HTTPDocument*)request->GetData();
HttpServerSocket* sock = (HttpServerSocket*)doc->sock;
- sock->Page(doc->GetDocument(), doc->GetResponseCode(), doc->GetExtraHeaders());
+ sock->Page(doc->GetDocument(), doc->GetResponseCode(), &doc->headers);
return NULL;
}
- void Implements(char* List)
- {
- List[I_OnEvent] = List[I_OnRequest] = 1;
- }
virtual ~ModuleHttpServer()
{
+ for (size_t i = 0; i < httplisteners.size(); i++)
+ {
+ delete httplisteners[i];
+ }
+
for (size_t i = 0; i < httpsocks.size(); i++)
{
ServerInstance->SE->DelFd(httpsocks[i]);
+ httpsocks[i]->Close();
delete httpsocks[i]->GetIndex();
- delete httpsocks[i];
}
}
virtual Version GetVersion()
{
- return Version(1,1,0,0,VF_VENDOR|VF_SERVICEPROVIDER,API_VERSION);
+ return Version("Provides HTTP serving facilities to modules", VF_VENDOR | VF_SERVICEPROVIDER, API_VERSION);
}
};
-
-class ModuleHttpServerFactory : public ModuleFactory
-{
- public:
- ModuleHttpServerFactory()
- {
- }
-
- ~ModuleHttpServerFactory()
- {
- }
-
- virtual Module * CreateModule(InspIRCd* Me)
- {
- HttpModule = new ModuleHttpServer(Me);
- return HttpModule;
- }
-};
-
-
-extern "C" DllExport void * init_module( void )
-{
- return new ModuleHttpServerFactory;
-}
+MODULE_INIT(ModuleHttpServer)
projects / user / henk / code / inspircd.git / blobdiff