mirror of
https://github.com/tuxbox-neutrino/neutrino.git
synced 2025-09-14 08:53:43 +02:00
our current experimental Neutrino branch
git-svn-id: file:///home/bas/coolstream_public_svn/THIRDPARTY/applications/neutrino-experimental@27 e54a6e83-5905-42d5-8d5c-058d10e6a962
This commit is contained in:
mrcolor
251
src/nhttpd/yhttpd_core/yresponse.cpp
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251
src/nhttpd/yhttpd_core/yresponse.cpp
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//=============================================================================
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// YHTTPD
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// Response
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//=============================================================================
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// c
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#include <cstdarg>
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#include <cstdio>
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#include <errno.h>
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// c++
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#include <string.h>
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// system
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#include <fcntl.h>
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#include <sys/socket.h>
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// yhttpd
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#include "yconfig.h"
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#include "yhttpd.h"
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#include "ytypes_globals.h"
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#include "ylogging.h"
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#include "ywebserver.h"
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#include "yconnection.h"
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#include "helper.h"
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#include "yhook.h"
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#ifdef Y_CONFIG_HAVE_SENDFILE
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#include <sys/sendfile.h>
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#endif
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//=============================================================================
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// Constructor & Destructor
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//=============================================================================
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CWebserverResponse::CWebserverResponse(CWebserver *pWebserver)
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{
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Webserver = pWebserver;
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CWebserverResponse();
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}
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//-----------------------------------------------------------------------------
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CWebserverResponse::CWebserverResponse()
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{
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}
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//=============================================================================
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// Main Dispacher for Response
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// To understand HOOKS reade yhook.cpp Comments!!!
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//-----------------------------------------------------------------------------
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// RFC 2616 / 6 Response
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//
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// After receiving and interpreting a request message, a server responds
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// with an HTTP response message.
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// Response =Status-Line ; generated by SendHeader
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// *(( general-header ; generated by SendHeader
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// | response-header ; generated by SendHeader
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// | entity-header ) CRLF); generated by SendHeader
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// CRLF ; generated by SendHeader
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// [ message-body ] ; by HOOK Handling Loop or Sendfile
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//=============================================================================
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bool CWebserverResponse::SendResponse()
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{
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// Init Hookhandler
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Connection->HookHandler.session_init(Connection->Request.ParameterList, Connection->Request.UrlData,
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(Connection->Request.HeaderList), (Cyhttpd::ConfigList), Connection->Method, Connection->keep_alive);
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//--------------------------------------------------------------
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// HOOK Handling Loop [ PREPARE response hook ]
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// Checking and Preperation: Auth, static, cache, ...
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//--------------------------------------------------------------
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// move to mod_sendfile ???
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#ifdef Y_CONFIG_USE_HOSTEDWEB
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// for hosted webs: rewrite URL
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std::string _hosted="/hosted/";
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if((Connection->Request.UrlData["path"]).compare(0,_hosted.length(),"/hosted/") == 0) // hosted Web ?
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Connection->Request.UrlData["path"]=Cyhttpd::ConfigList["HostedDocumentRoot"]
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+(Connection->Request.UrlData["path"]).substr(_hosted.length()-1);
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#endif //Y_CONFIG_USE_HOSTEDWEB
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do
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{
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if(Connection->RequestCanceled)
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return false;
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Connection->HookHandler.Hooks_PrepareResponse();
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if(Connection->HookHandler.status == HANDLED_ERROR || Connection->HookHandler.status == HANDLED_ABORT)
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{
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log_level_printf(2,"Response Prepare Hook found but Error\n");
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Write(Connection->HookHandler.BuildHeader());
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Write(Connection->HookHandler.yresult);
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return false;
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}
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// URL has new value. Analyze new URL for SendFile
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else if(Connection->HookHandler.status == HANDLED_SENDFILE ||
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Connection->HookHandler.status == HANDLED_REWRITE)
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{
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Connection->Request.analyzeURL(Connection->HookHandler.NewURL);
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Connection->HookHandler.UrlData = Connection->Request.UrlData;
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}
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if(Connection->HookHandler.status == HANDLED_REDIRECTION)
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{
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Write(Connection->HookHandler.BuildHeader());
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return false;
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}
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}
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while(Connection->HookHandler.status == HANDLED_REWRITE);
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// Prepare = NOT_MODIFIED ?
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if(Connection->HookHandler.httpStatus == HTTP_NOT_MODIFIED)
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{
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Write(Connection->HookHandler.BuildHeader());
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return true;
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}
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//--------------------------------------------------------------
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// HOOK Handling Loop [ response hook ]
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// Production
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//--------------------------------------------------------------
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if(Connection->HookHandler.status != HANDLED_SENDFILE)
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do
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{
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if(Connection->RequestCanceled)
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return false;
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Connection->HookHandler.Hooks_SendResponse();
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if((Connection->HookHandler.status == HANDLED_READY)||(Connection->HookHandler.status == HANDLED_CONTINUE))
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{
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log_level_printf(2,"Response Hook Output. Status:%d\n", Connection->HookHandler.status);
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Write(Connection->HookHandler.BuildHeader());
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if(Connection->Method != M_HEAD)
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Write(Connection->HookHandler.yresult);
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if(Connection->HookHandler.status != HANDLED_CONTINUE)
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return true;
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}
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else if(Connection->HookHandler.status == HANDLED_ERROR)
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{
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log_level_printf(2,"Response Hook found but Error\n");
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Write(Connection->HookHandler.BuildHeader());
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if(Connection->Method != M_HEAD)
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Write(Connection->HookHandler.yresult);
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return false;
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}
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else if(Connection->HookHandler.status == HANDLED_ABORT)
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return false;
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// URL has new value. Analyze new URL for SendFile
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else if(Connection->HookHandler.status == HANDLED_SENDFILE ||
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Connection->HookHandler.status == HANDLED_REWRITE)
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{
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Connection->Request.analyzeURL(Connection->HookHandler.NewURL);
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Connection->HookHandler.UrlData = Connection->Request.UrlData;
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}
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if(Connection->HookHandler.status == HANDLED_REDIRECTION)
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{
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Write(Connection->HookHandler.BuildHeader());
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return false;
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}
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}
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while(Connection->HookHandler.status == HANDLED_REWRITE);
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// Send static file
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if(Connection->HookHandler.status == HANDLED_SENDFILE && !Connection->RequestCanceled)
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{
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bool cache = true;
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// if(Connection->HookHandler.UrlData["path"] == "/tmp/")//TODO: un-cachable dirs
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// cache = false;
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Write(Connection->HookHandler.BuildHeader(cache));
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if(Connection->Method != M_HEAD)
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Sendfile(Connection->Request.UrlData["url"]);
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return true;
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}
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// arrived here? = error!
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SendError(HTTP_NOT_FOUND);
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return false;
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}
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//=============================================================================
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// Output
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//=============================================================================
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void CWebserverResponse::SendHeader(HttpResponseType responseType, bool cache, std::string ContentType)
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{
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Connection->HookHandler.SetHeader(responseType, ContentType);
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Write(Connection->HookHandler.BuildHeader(cache));
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}
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//-----------------------------------------------------------------------------
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// BASIC Send over Socket for Strings (char*)
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//-----------------------------------------------------------------------------
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bool CWebserverResponse::WriteData(char const * data, long length)
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{
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if(Connection->RequestCanceled)
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return false;
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if(Connection->sock->Send(data, length) == -1)
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{
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log_level_printf(1,"response canceled: %s\n", strerror(errno));
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Connection->RequestCanceled = true;
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return false;
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}
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else
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return true;
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}
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//-----------------------------------------------------------------------------
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#define bufferlen 4*1024
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void CWebserverResponse::printf ( const char *fmt, ... )
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{
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char buffer[bufferlen];
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va_list arglist;
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va_start( arglist, fmt );
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vsnprintf( buffer, bufferlen, fmt, arglist );
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va_end(arglist);
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Write(buffer);
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}
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//-----------------------------------------------------------------------------
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bool CWebserverResponse::Write(char const *text)
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{
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return WriteData(text, strlen(text));
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}
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//-----------------------------------------------------------------------------
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bool CWebserverResponse::WriteLn(char const *text)
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{
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if(!WriteData(text, strlen(text)))
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return false;
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return WriteData("\r\n",2);
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}
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//-----------------------------------------------------------------------------
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bool CWebserverResponse::Sendfile(std::string filename)
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{
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if(Connection->RequestCanceled)
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return false;
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int filed = open( filename.c_str(), O_RDONLY );
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if(filed != -1 ) //can access file?
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{
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if(!Connection->sock->SendFile(filed))
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Connection->RequestCanceled = true;
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close(filed);
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}
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return (filed != -1 );
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}
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//-----------------------------------------------------------------------------
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// Send File: Determine MIME-Type fro File-Extention
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//-----------------------------------------------------------------------------
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std::string CWebserverResponse::GetContentType(std::string ext)
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{
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std::string ctype = "text/plain";
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ext = string_tolower(ext);
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for (unsigned int i = 0;i < (sizeof(MimeFileExtensions)/sizeof(MimeFileExtensions[0])); i++)
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if (MimeFileExtensions[i].fileext == ext)
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{
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ctype = MimeFileExtensions[i].mime;
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break;
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}
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return ctype;
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}
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