source: trunk/zoo-kernel/zoo_loader.c @ 19

Last change on this file since 19 was 19, checked in by djay, 9 years ago

Small fix zoo_loader.c to remove debug string which can cause trouble.

File size: 7.2 KB
Line 
1/**
2 * Author : Gérald FENOY
3 *
4 *  Copyright 2008-2009 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#include "fcgio.h"
32#include "fcgi_config.h"
33#include "fcgi_stdio.h"
34#include <sys/types.h>
35#include <unistd.h>
36#include "service_internal.h"
37
38extern "C" {
39#include "cgic.h"
40#include <libxml/tree.h>
41#include <libxml/xmlmemory.h>
42#include <libxml/parser.h>
43#include <libxml/xpath.h>
44#include <libxml/xpathInternals.h>
45}
46
47xmlXPathObjectPtr extractFromDoc(xmlDocPtr,char*);
48int runRequest(map*);
49
50using namespace std;
51
52/* ************************************************************************* */
53
54int errorException(maps *m, const char *message, const char *errorcode) 
55{
56  map * errormap = createMap("text", message);
57  addToMap(errormap,"code", errorcode);
58  printExceptionReportResponse(m,errormap);
59  freeMap(&errormap);
60  free(errormap);
61  return -1;
62}
63
64/* ************************************************************************* */
65
66#ifndef STRTOK_R
67char *
68strtok_r (char *s1, const char *s2, char **lasts)
69{
70  char *ret;
71
72  if (s1 == NULL)
73    s1 = *lasts;
74  while (*s1 && strchr(s2, *s1))
75    ++s1;
76  if (*s1 == '\0')
77    return NULL;
78  ret = s1;
79  while (*s1 && !strchr(s2, *s1))
80    ++s1;
81  if (*s1)
82    *s1++ = '\0';
83  *lasts = s1;
84  return ret;
85}
86
87#endif
88
89#define TRUE 1
90#define FALSE -1
91
92int cgiMain(){
93  /**
94   * We'll use cgiOut as the default output (stdout) to produce plain text
95   * response.
96   */
97  dup2(fileno(cgiOut),fileno(stdout));
98#ifdef DEBUG
99  fprintf(cgiOut,"Content-Type: text/plain; charset=utf-8\r\nStatus: 200 OK\r\n\r\n");
100  fprintf(cgiOut,"Welcome on ZOO verbose debuging mode \r\n\r\n");
101  fflush(cgiOut);
102#endif
103 
104#ifdef DEBUG
105  fprintf (stderr, "Addr:%s\n", cgiRemoteAddr); 
106  fprintf (stderr, "RequestMethod:%s\n", cgiRequestMethod); 
107  fprintf (stderr, "Request: %s\n", cgiQueryString);
108#endif
109
110  map* tmpMap=NULL;
111   
112  if(strncmp(cgiContentType,"text/xml",8)==0){
113    char *buffer=new char[cgiContentLength+1];
114    if(fread(buffer,1,cgiContentLength,cgiIn)){
115      buffer[cgiContentLength]=0;
116      tmpMap=createMap("request",buffer);
117    }else{
118      /* Here we have to return an error message ... */
119      fprintf(stderr, "Unable to read cgi content in zoo_loader.c line %i\n", __LINE__);
120      return 1; 
121    }
122    delete[]buffer;
123  }
124  else{
125    char **array, **arrayStep;
126    if (cgiFormEntries(&array) != cgiFormSuccess) {
127      return 1;
128    }
129    arrayStep = array;
130    while (*arrayStep) {
131      char *value=new char[cgiContentLength];
132      cgiFormStringNoNewlines(*arrayStep, value, cgiContentLength);
133#ifdef DEBUG
134      fprintf(stderr,"(( \n %s \n %s \n ))",*arrayStep,value);
135#endif
136      if(tmpMap!=NULL)
137        addToMap(tmpMap,*arrayStep,value);
138      else
139        tmpMap=createMap(*arrayStep,value);
140      arrayStep++;
141      delete[]value;
142    }
143    cgiStringArrayFree(array);
144  }
145
146  /**
147   * In case that the POST method was used, then check if params came in XML
148   * format else try to use the attribute "request" which should be the only
149   * one.
150   */
151  if(strncasecmp(cgiRequestMethod,"post",4)==0 || 
152     (count(tmpMap)==1 && strncmp(tmpMap->value,"<",1)==0)){
153    /**
154     * First include the MetaPath and the ServiceProvider default parameters
155     * (which should be always available in GET params so in cgiQueryString)
156     */
157    char *str1;
158    str1=cgiQueryString;
159    /**
160     * Store the original XML request in xrequest map
161     */
162    map* t1=getMap(tmpMap,"request");
163    if(t1!=NULL){
164      addToMap(tmpMap,"xrequest",t1->value);
165      xmlInitParser();
166      xmlDocPtr doc = xmlParseMemory(t1->value,cgiContentLength);
167      xmlNodePtr cur = xmlDocGetRootElement(doc);
168      char *tval;
169      tval=NULL;
170      tval = (char*) xmlGetProp(cur,BAD_CAST "service");
171      if(tval!=NULL)
172        addToMap(tmpMap,"service",tval);
173      tval=NULL;
174      tval = (char*) xmlGetProp(cur,BAD_CAST "language");
175      if(tval!=NULL)
176        addToMap(tmpMap,"language",tval);
177     
178      char* requests[3];
179      requests[0]="GetCapabilities";
180      requests[1]="DescribeProcess";
181      requests[2]="Execute";
182      for(int j=0;j<3;j++){
183        char tt[35];
184        sprintf(tt,"/*[local-name()='%s']",requests[j]);
185        xmlXPathObjectPtr reqptr=extractFromDoc(doc,tt);
186        if(reqptr!=NULL){
187          xmlNodeSet* req=reqptr->nodesetval;
188#ifdef DEBUG
189          fprintf(stderr,"%i",req->nodeNr);
190#endif
191          if(req!=NULL && req->nodeNr==1){
192            t1->value=requests[j];
193            j=2;
194          }
195          xmlXPathFreeObject(reqptr);
196        }
197        //xmlFree(req);
198      }
199      if(strncasecmp(t1->value,"GetCapabilities",15)==0){
200        xmlXPathObjectPtr versptr=extractFromDoc(doc,"/*/*/*[local-name()='Version']");
201        xmlNodeSet* vers=versptr->nodesetval;
202        xmlChar* content=xmlNodeListGetString(doc, vers->nodeTab[0]->xmlChildrenNode,1);
203        addToMap(tmpMap,"version",(char*)content);
204        xmlXPathFreeObject(versptr);
205        //xmlFree(vers);
206        xmlFree(content);
207      }else{
208        tval=NULL;
209        tval = (char*) xmlGetProp(cur,BAD_CAST "version");
210        if(tval!=NULL)
211          addToMap(tmpMap,"version",tval);
212        xmlFree(tval);
213        tval = (char*) xmlGetProp(cur,BAD_CAST "language");
214        if(tval!=NULL)
215          addToMap(tmpMap,"language",tval);
216        xmlXPathObjectPtr idptr=extractFromDoc(doc,"/*/*[local-name()='Identifier']");
217        if(idptr!=NULL){
218          xmlNodeSet* id=idptr->nodesetval;
219          if(id!=NULL){
220            char* identifiers=NULL;
221            identifiers=(char*)calloc(cgiContentLength,sizeof(char));
222            identifiers[0]=0;
223            for(int k=0;k<id->nodeNr;k++){
224              xmlChar* content=xmlNodeListGetString(doc, id->nodeTab[k]->xmlChildrenNode,1);
225              if(strlen(identifiers)>0){
226                char *tmp=strdup(identifiers);
227                snprintf(identifiers,strlen(tmp)+xmlStrlen(content)+2,"%s,%s",tmp,content);
228                free(tmp);
229              }
230              else{
231                snprintf(identifiers,xmlStrlen(content)+1,"%s",content);
232              }
233              xmlFree(content);
234            }
235            xmlXPathFreeObject(idptr);
236            addToMap(tmpMap,"Identifier",identifiers);
237            free(identifiers);
238          }
239        }
240        //xmlFree(id);
241      }
242      xmlFree(tval);
243      xmlFreeDoc(doc);
244      xmlCleanupParser();
245    }
246  }
247
248  runRequest(tmpMap);
249
250  /**
251   * Required but can't be made after executing a process using POST requests.
252   */
253  if(strncasecmp(cgiRequestMethod,"post",4)!=0 && count(tmpMap)!=1 && tmpMap!=NULL){
254    freeMap(&tmpMap);
255    free(tmpMap);
256  }
257  return 0;
258
259}
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