/* GSWAppRequest.c - GSWeb: Adaptors: App Request Copyright (C) 1999 Free Software Foundation, Inc. Written by: Manuel Guesdon Date: Jully 1999 This file is part of the GNUstep Web Library. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include #include #include #include #include "config.h" #include "GSWUtil.h" #include "GSWDict.h" #include "GSWConfig.h" #include "GSWURLUtil.h" #include "GSWAppRequestStruct.h" #include "GSWAppConnect.h" #include "GSWHTTPRequest.h" #include "GSWHTTPResponse.h" #include "GSWAppRequest.h" #include "GSWHTTPHeaders.h" #include "GSWLoadBalancing.h" unsigned long glbRequestsNb = 0; unsigned long glbResponsesNb = 0; GSWHTTPResponse* GSWAppRequest_SendAppRequestToApp(GSWHTTPRequest** p_ppHTTPRequest, GSWURLComponents* p_pURLComponents, GSWAppRequest* p_pAppRequest, CONST char* p_pszHTTPVersion, void* p_pLogServerData); GSWHTTPResponse* GSWAppRequest_HandleRequest(GSWHTTPRequest** p_ppHTTPRequest, GSWURLComponents* p_pURLComponents, CONST char* p_pszHTTPVersion, CONST char* p_pszDocRoot, CONST char* p_pszTestAppName, void* p_pLogServerData) { GSWHTTPResponse* pHTTPResponse=NULL; glbRequestsNb++; if (p_pURLComponents->stAppName.iLength<=0 || !p_pURLComponents->stAppName.pszStart) { pHTTPResponse=GSWHTTPResponse_BuildErrorResponse("No Application Name"); } else { char szAppName[MAXPATHLEN+1]=""; char szHost[MAXHOSTNAMELEN+1]=""; GSWAppRequest stAppRequest; memset(&stAppRequest,0,sizeof(stAppRequest)); // Get App Name strncpy(szAppName, p_pURLComponents->stAppName.pszStart, p_pURLComponents->stAppName.iLength); szAppName[p_pURLComponents->stAppName.iLength]=0; DeleteTrailingSlash(szAppName); if (strcmp(szAppName,p_pszTestAppName) == 0) pHTTPResponse=GSWHTTPResponse_BuildTestResponse(p_pLogServerData,*p_ppHTTPRequest); else { // Get Host Name if (p_pURLComponents->stAppHost.iLength>0 && p_pURLComponents->stAppHost.pszStart) { strncpy(szHost, p_pURLComponents->stAppHost.pszStart, p_pURLComponents->stAppHost.iLength); szHost[p_pURLComponents->stAppHost.iLength] = '\0'; }; // Get Request Instance Number // in URL ? if (p_pURLComponents->stAppNumber.iLength>0 && p_pURLComponents->stAppNumber.pszStart) stAppRequest.iInstance = atoi(p_pURLComponents->stAppNumber.pszStart); // In Cookie ? else { CONST char* pszCookie=GSWHTTPRequest_HeaderForKey(*p_ppHTTPRequest,g_szHeader_Cookie); if (pszCookie) { CONST char* pszInstanceCookie=strstr(pszCookie, g_szGSWeb_InstanceCookie); if (pszInstanceCookie) { stAppRequest.iInstance = atoi(pszInstanceCookie + strlen(g_szGSWeb_InstanceCookie)); GSWLog(GSW_INFO,p_pLogServerData,"Cookie instance %d from %s", stAppRequest.iInstance, pszCookie); }; }; }; stAppRequest.pszName = szAppName; stAppRequest.pszHost = szHost; stAppRequest.pszDocRoot = p_pszDocRoot; stAppRequest.pRequest = *p_ppHTTPRequest; stAppRequest.uURLVersion = (p_pURLComponents->stVersion.pszStart) ? atoi(p_pURLComponents->stVersion.pszStart) : GSWEB_VERSION_MAJOR; GSWHTTPRequest_AddHeader(*p_ppHTTPRequest, g_szHeader_GSWeb_ServerAdaptor, g_szGSWeb_ServerAndAdaptorVersion); pHTTPResponse=GSWAppRequest_SendAppRequestToApp(p_ppHTTPRequest, p_pURLComponents, &stAppRequest, p_pszHTTPVersion, p_pLogServerData); }; }; return pHTTPResponse; } GSWHTTPResponse* GSWAppRequest_SendAppRequestToApp(GSWHTTPRequest** p_ppHTTPRequest, GSWURLComponents* p_pURLComponents, GSWAppRequest* p_pAppRequest, CONST char* p_pszHTTPVersion, void* p_pLogServerData) { GSWHTTPResponse* pHTTPResponse=NULL; BOOL fAppFound=FALSE; int iAttemptsRemaining=APP_CONNECT_RETRIES_NB; AppConnectHandle hConnect=NULL; if (p_pAppRequest->iInstance) fAppFound = GSWLoadBalancing_FindInstance(p_pLogServerData,p_pAppRequest); else fAppFound = GSWLoadBalancing_FindApp(p_pLogServerData,p_pAppRequest); if (!fAppFound) { //TODO // Call AppStart daemon }; while (!pHTTPResponse && fAppFound && iAttemptsRemaining-->0) { GSWLog(GSW_INFO,p_pLogServerData,"Trying to contact %s:%d on %s(%d)", p_pAppRequest->pszName, p_pAppRequest->iInstance, p_pAppRequest->pszHost, p_pAppRequest->iPort); hConnect = GSWApp_Open(p_pLogServerData,p_pAppRequest); if (hConnect) { if (p_pAppRequest->eType==EAppType_LoadBalanced) GSWLoadBalancing_StartAppRequest(p_pLogServerData,p_pAppRequest); GSWLog(GSW_INFO,p_pLogServerData,"%s:%d on %s(%d) connected", p_pAppRequest->pszName, p_pAppRequest->iInstance, p_pAppRequest->pszHost, p_pAppRequest->iPort); GSWHTTPRequest_HTTPToAppRequest(*p_ppHTTPRequest, p_pAppRequest, p_pURLComponents, p_pszHTTPVersion); if (GSWHTTPRequest_SendRequest(p_pLogServerData,*p_ppHTTPRequest, hConnect) != 0) { GSWLog(GSW_ERROR,p_pLogServerData,"Failed to send request"); GSWApp_Close(p_pLogServerData,hConnect); hConnect=NULL; pHTTPResponse=GSWHTTPResponse_BuildErrorResponse("No Response"); } else { GSWLog(GSW_INFO,p_pLogServerData, "Request %s sent, awaiting response", (*p_ppHTTPRequest)->pszRequest); p_pAppRequest->pRequest = NULL; pHTTPResponse = GSWHTTPResponse_GetResponse(p_pLogServerData,hConnect); // GSWLog(GSW_INFO,p_pLogServerData,"GetResponse End pHTTPResponse=%p",pHTTPResponse); p_pAppRequest->pResponse = pHTTPResponse; if (p_pAppRequest->eType == EAppType_LoadBalanced) GSWLoadBalancing_StopAppRequest(p_pLogServerData,p_pAppRequest); GSWApp_Close(p_pLogServerData,hConnect); hConnect=NULL; glbResponsesNb++; if (pHTTPResponse) { GSWLog(GSW_INFO,p_pLogServerData, "received: %d %s", pHTTPResponse->uStatus, pHTTPResponse->pszStatusMessage); }; }; } else { GSWLog(GSW_INFO,p_pLogServerData,"%s:%d NOT LISTENING on %s(%d)", p_pAppRequest->pszName, p_pAppRequest->iInstance, p_pAppRequest->pszHost, p_pAppRequest->iPort); //TODO /* if (p_pAppRequest->eType == EAppType_Auto) GSWLoadBalancing_MarkNotRespondingApp(p_pLogServerData,p_pAppRequest); else*/ if (p_pAppRequest->eType == EAppType_LoadBalanced) { GSWLoadBalancing_MarkNotRespondingApp(p_pLogServerData,p_pAppRequest); if (iAttemptsRemaining-- > 0) fAppFound = GSWLoadBalancing_FindApp(p_pLogServerData,p_pAppRequest); }; pHTTPResponse = GSWHTTPResponse_BuildErrorResponse("No Response"); }; }; if (!pHTTPResponse) { GSWLog(GSW_INFO,p_pLogServerData, "Application %s not found or not responding", p_pAppRequest->pszName); pHTTPResponse = GSWDumpConfigFile(p_pLogServerData,p_pURLComponents); if (!pHTTPResponse) { pHTTPResponse = GSWHTTPResponse_BuildErrorResponse("No App Found"); pHTTPResponse->uStatus = 404; if (pHTTPResponse->pszStatusMessage) { free(pHTTPResponse->pszStatusMessage); pHTTPResponse->pszStatusMessage=NULL; }; pHTTPResponse->pszStatusMessage = strdup("File Not found"); } }; GSWHTTPRequest_Free(*p_ppHTTPRequest); *p_ppHTTPRequest=NULL; return pHTTPResponse; };