source: trunk/zoo-project/zoo-kernel/zoo_loader.c @ 458

Last change on this file since 458 was 458, checked in by djay, 8 years ago

Fix some issue in background execution on windows platform (basic array and xlink). Fix issue #89.

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1/**
2 * Author : Gérald FENOY
3 *
4 *  Copyright 2008-2011 GeoLabs SARL. All rights reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25#define MALLOC_CHECK_ 0
26#define MALLOC_CHECK 0
27
28/**
29 * Specific includes
30 */
31#ifndef WIN32
32#include "fcgio.h"
33#include "fcgi_config.h"
34#include "fcgi_stdio.h"
35#endif
36#include <sys/types.h>
37#include <unistd.h>
38#include "service_internal.h"
39#ifdef WIN32
40#include "windows.h"
41#define strtok_r strtok_s
42#endif
43
44extern "C" {
45#include "cgic.h"
46#include <libxml/tree.h>
47#include <libxml/xmlmemory.h>
48#include <libxml/parser.h>
49#include <libxml/xpath.h>
50#include <libxml/xpathInternals.h>
51}
52
53#include "service_internal.h"
54
55xmlXPathObjectPtr extractFromDoc(xmlDocPtr,const char*);
56int runRequest(map*);
57
58using namespace std;
59
60#ifndef TRUE
61#define TRUE 1
62#endif
63#ifndef FALSE
64#define FALSE -1
65#endif
66
67int cgiMain(){
68  /**
69   * We'll use cgiOut as the default output (stdout) to produce plain text
70   * response.
71   */
72  dup2(fileno(cgiOut),fileno(stdout));
73#ifdef DEBUG
74  fprintf(cgiOut,"Content-Type: text/plain; charset=utf-8\r\nStatus: 200 OK\r\n\r\n");
75  fprintf(cgiOut,"Welcome on ZOO verbose debuging mode \r\n\r\n");
76  fflush(cgiOut);
77  fprintf (stderr, "Addr:%s\n", cgiRemoteAddr); 
78  fprintf (stderr, "RequestMethod: (%s) %d %d\n", cgiRequestMethod,strncasecmp(cgiRequestMethod,"post",4),strncmp(cgiContentType,"text/xml",8)==0 || strncasecmp(cgiRequestMethod,"post",4)==0); 
79  fprintf (stderr, "Request: %s\n", cgiQueryString);
80  fprintf (stderr, "ContentType: %s\n", cgiContentType);
81  fprintf (stderr, "ContentLength: %d\n", cgiContentLength);
82  fflush(stderr);
83#endif
84
85 
86  char *strQuery=NULL;
87  if(cgiQueryString!=NULL)
88    strQuery=zStrdup(cgiQueryString);
89  map* tmpMap=NULL;
90
91  if(strncmp(cgiContentType,"text/xml",8)==0 || 
92     strncasecmp(cgiRequestMethod,"post",4)==0){
93    if(cgiContentLength==NULL){
94       cgiContentLength=0;
95       char *buffer=new char[2];
96       char *res=NULL;
97       int r=0;
98       while((r=fread(buffer,sizeof(char),1,cgiIn))){
99         cgiContentLength+=r;
100         if(res==NULL){
101           res=(char*)malloc(1*sizeof(char));
102           sprintf(res,"%s",buffer);
103         }
104         else{
105           res=(char*)realloc(res,(cgiContentLength+1)*sizeof(char));
106           char *tmp=zStrdup(res);
107           sprintf(res,"%s%s",tmp,buffer);
108           free(tmp);
109         }
110       }
111       if(res==NULL && (strQuery==NULL || strlen(strQuery)==0)){
112         return errorException(NULL,"ZOO-Kernel failed to process your request cause the request was emtpty.","InternalError");
113       }else{
114         if(strQuery==NULL || strlen(strQuery)==0)
115           tmpMap=createMap("request",res);
116            }
117    }else{
118      char *buffer=new char[cgiContentLength+1];
119      int r=0;
120      if(fread(buffer,sizeof(char),cgiContentLength,cgiIn)>=0){
121        buffer[cgiContentLength]=0;
122        tmpMap=createMap("request",buffer);
123      }else{
124        buffer[0]=0;
125        char **array, **arrayStep;
126        if (cgiFormEntries(&array) != cgiFormSuccess) {
127          return 1;
128        }
129        arrayStep = array;
130        while (*arrayStep) {
131          char *ivalue=new char[cgiContentLength];
132          cgiFormStringNoNewlines(*arrayStep, ivalue, cgiContentLength);
133          char* tmpValueFinal=(char*) malloc((strlen(*arrayStep)+strlen(ivalue)+1)*sizeof(char));
134          sprintf(tmpValueFinal,"%s=%s",*arrayStep,ivalue);
135          if(strlen(buffer)==0){
136            sprintf(buffer,"%s",tmpValueFinal);
137          }else{
138            char *tmp=zStrdup(buffer);
139            sprintf(buffer,"%s&%s",tmp,tmpValueFinal);
140            free(tmp);
141          }
142          free(tmpValueFinal);
143#ifdef DEBUG
144          fprintf(stderr,"(( \n %s \n %s \n ))",*arrayStep,ivalue);
145#endif
146          delete[]ivalue;
147          arrayStep++;
148        }
149        tmpMap=createMap("request",buffer);
150      }
151      delete[]buffer;
152    }
153  }
154  else{
155#ifdef DEBUG
156    dumpMap(tmpMap);
157#endif
158    char **array, **arrayStep;
159    if (cgiFormEntries(&array) != cgiFormSuccess) {
160      return 1;
161    }
162    arrayStep = array;
163    while (*arrayStep) {
164      char *value=new char[cgiContentLength];
165      cgiFormStringNoNewlines(*arrayStep, value, cgiContentLength);
166#ifdef DEBUG
167      fprintf(stderr,"(( \n %s \n %s \n ))",*arrayStep,value);
168#endif
169      if(tmpMap!=NULL)
170        addToMap(tmpMap,*arrayStep,value);
171      else
172        tmpMap=createMap(*arrayStep,value);
173      arrayStep++;
174      delete[]value;
175    }
176    cgiStringArrayFree(array);
177  }
178
179#ifdef WIN32
180  map *tmpReq=getMap(tmpMap,"rfile");
181  if(tmpReq!=NULL){
182    FILE *lf=fopen(tmpReq->value,"r");
183    fseek(lf,0,SEEK_END);
184    long flen=ftell(lf);
185    fseek(lf,0,SEEK_SET);
186    char *buffer=(char*)malloc((flen+1)*sizeof(char));
187    fread(buffer,flen,1,lf);
188    fclose(lf);
189    addToMap(tmpMap,"request",buffer);
190    free(buffer);
191    cgiContentLength=flen+9;
192  }
193#endif
194  /**
195   * In case that the POST method was used, then check if params came in XML
196   * format else try to use the attribute "request" which should be the only
197   * one.
198   */
199  if(strncasecmp(cgiRequestMethod,"post",4)==0 || 
200     (count(tmpMap)==1 && strncmp(tmpMap->value,"<",1)==0) 
201#ifdef WIN32
202     ||tmpReq!=NULL
203#endif
204     ){
205    /**
206     * First include the MetaPath and the ServiceProvider default parameters
207     * (which should be always available in GET params so in cgiQueryString)
208     */
209    char *str1;
210    str1=cgiQueryString;
211    /**
212     * Store the original XML request in xrequest map
213     */
214    map* t1=getMap(tmpMap,"request");
215    if(t1!=NULL && strncasecmp(t1->value,"<",1)==0){
216      addToMap(tmpMap,"xrequest",t1->value);
217      xmlInitParser();
218      xmlDocPtr doc = xmlParseMemory(t1->value,cgiContentLength);
219      {
220        xmlXPathObjectPtr reqptr=extractFromDoc(doc,"/*[local-name()='Envelope']/*[local-name()='Body']/*");
221        if(reqptr!=NULL){
222          xmlNodeSet* req=reqptr->nodesetval;
223          if(req!=NULL && req->nodeNr==1){
224            addToMap(tmpMap,"soap","true");
225            int k=0;
226            for(k;k < req->nodeNr;k++){
227              xmlNsPtr ns=xmlNewNs(req->nodeTab[k],BAD_CAST "http://www.w3.org/2001/XMLSchema-instance",BAD_CAST "xsi");
228              xmlDocSetRootElement(doc, req->nodeTab[k]);
229              xmlChar *xmlbuff;
230              int buffersize;
231              xmlDocDumpFormatMemoryEnc(doc, &xmlbuff, &buffersize, "utf-8", 1);
232              addToMap(tmpMap,"xrequest",(char*)xmlbuff);
233              char *tmp=(char*)xmlbuff;
234              xmlFree(xmlbuff);
235            }
236          }
237        }
238      }
239
240      xmlNodePtr cur = xmlDocGetRootElement(doc);
241      char *tval;
242      tval=NULL;
243      tval = (char*) xmlGetProp(cur,BAD_CAST "service");
244      if(tval!=NULL)
245        addToMap(tmpMap,"service",tval);
246      tval=NULL;
247      tval = (char*) xmlGetProp(cur,BAD_CAST "language");
248      if(tval!=NULL)
249        addToMap(tmpMap,"language",tval);
250      const char* requests[3]={"GetCapabilities","DescribeProcess","Execute"};
251      for(int j=0;j<3;j++){
252        char tt[128];
253        sprintf(tt,"/*[local-name()='%s']",requests[j]);
254        xmlXPathObjectPtr reqptr=extractFromDoc(doc,tt);
255        if(reqptr!=NULL){
256          xmlNodeSet* req=reqptr->nodesetval;
257#ifdef DEBUG
258          fprintf(stderr,"%i",req->nodeNr);
259#endif
260          if(req!=NULL && req->nodeNr==1){
261            t1->value=zStrdup(requests[j]);
262            j=2;
263          }
264          xmlXPathFreeObject(reqptr);
265        }
266      }
267      if(strncasecmp(t1->value,"GetCapabilities",15)==0){
268        xmlXPathObjectPtr versptr=extractFromDoc(doc,"/*/*/*[local-name()='Version']");
269        xmlNodeSet* vers=versptr->nodesetval;
270        xmlChar* content=xmlNodeListGetString(doc, vers->nodeTab[0]->xmlChildrenNode,1);
271        addToMap(tmpMap,"version",(char*)content);
272        xmlXPathFreeObject(versptr);
273        xmlFree(content);
274      }else{
275        tval=NULL;
276        tval = (char*) xmlGetProp(cur,BAD_CAST "version");
277        if(tval!=NULL)
278          addToMap(tmpMap,"version",tval);
279        tval = (char*) xmlGetProp(cur,BAD_CAST "language");
280        if(tval!=NULL)
281          addToMap(tmpMap,"language",tval);
282        xmlXPathObjectPtr idptr=extractFromDoc(doc,"/*/*[local-name()='Identifier']");
283        if(idptr!=NULL){
284          xmlNodeSet* id=idptr->nodesetval;
285          if(id!=NULL){
286            char* identifiers=NULL;
287            identifiers=(char*)calloc(cgiContentLength,sizeof(char));
288            identifiers[0]=0;
289            for(int k=0;k<id->nodeNr;k++){
290              xmlChar* content=xmlNodeListGetString(doc, id->nodeTab[k]->xmlChildrenNode,1);
291              if(strlen(identifiers)>0){
292                char *tmp=zStrdup(identifiers);
293                snprintf(identifiers,strlen(tmp)+xmlStrlen(content)+2,"%s,%s",tmp,content);
294                free(tmp);
295              }
296              else{
297                snprintf(identifiers,xmlStrlen(content)+1,"%s",content);
298              }
299              xmlFree(content);
300            }
301            xmlXPathFreeObject(idptr);
302            addToMap(tmpMap,"Identifier",identifiers);
303            free(identifiers);
304          }
305        }
306      }
307      xmlFreeDoc(doc);
308      xmlCleanupParser();
309    }else{
310      freeMap(&tmpMap);
311      free(tmpMap);
312      tmpMap=createMap("not_valid","true");
313    }
314
315    char *token,*saveptr;
316    token=strtok_r(cgiQueryString,"&",&saveptr);
317    while(token!=NULL){
318      char *token1,*saveptr1;
319      char *name=NULL;
320      char *value=NULL;
321      token1=strtok_r(token,"=",&saveptr1);
322      while(token1!=NULL){
323        if(name==NULL)
324          name=zStrdup(token1);
325        else
326          value=zStrdup(token1);
327        token1=strtok_r(NULL,"=",&saveptr1);
328      }
329      addToMap(tmpMap,name,value);
330      free(name);
331      free(value);
332      name=NULL;
333      value=NULL;
334      token=strtok_r(NULL,"&",&saveptr);
335    }
336   
337  }
338
339  if(strncasecmp(cgiContentType,"multipart/form-data",19)==0){
340    map* tmp=getMap(tmpMap,"dataInputs");
341    if(tmp!=NULL){
342      addToMap(tmpMap,"dataInputs",strstr(strQuery,"dataInputs=")+11);
343    }
344  }
345
346  if(strQuery!=NULL)
347    free(strQuery);
348  runRequest(tmpMap);
349
350  /**
351   * Required but can't be made after executing a process using POST requests.
352   */
353  if(strncasecmp(cgiRequestMethod,"post",4)!=0 && count(tmpMap)!=1 && tmpMap!=NULL){
354    freeMap(&tmpMap);
355    free(tmpMap);
356  }
357  return 0;
358
359}
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