source: trunk/zoo-project/zoo-kernel/ulinet.c @ 917

Last change on this file since 917 was 917, checked in by djay, 3 years ago

Merge prototype-v0 branch in trunk

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File size: 22.3 KB
Line 
1/*
2 *  ulinet.c
3 *
4 * Author : Gérald FENOY
5 *
6 * Copyright (c) 2008-2019 GeoLabs SARL
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 * THE SOFTWARE.
25 *
26 */
27
28#define _ULINET
29#define MAX_WAIT_MSECS 180*1000 /* Wait max. 180 seconds */
30#include "ulinet.h"
31#include "server_internal.h"
32#include <assert.h>
33#include <ctype.h>
34#include "fcgi_stdio.h"
35
36/**
37 * Write the downloaded content to a _HINTERNET structure
38 *
39 * @param buffer the buffer to read
40 * @param size size of each member
41 * @param nmemb number of element to read
42 * @param data the _HINTERNET structure to write in
43 * @return the size red, -1 if buffer is NULL
44 */
45size_t write_data_into(void *buffer, size_t size, size_t nmemb, void *data){
46  size_t realsize = size * nmemb;
47  _HINTERNET *psInternet;
48  if(buffer==NULL){
49    buffer=NULL;
50    return -1;
51  }
52  psInternet=(_HINTERNET *)data;
53  if(psInternet->pabyData){
54    psInternet->pabyData=(unsigned char*)realloc(psInternet->pabyData,psInternet->nDataLen+realsize+1);
55    psInternet->nDataAlloc+=psInternet->nDataLen+realsize+1;
56  }
57  else{
58    psInternet->pabyData=(unsigned char*)malloc(psInternet->nDataLen+realsize+1);
59    psInternet->nDataAlloc=realsize+1;
60  }
61
62  if (psInternet->pabyData) {
63    memcpy( psInternet->pabyData + psInternet->nDataLen, buffer, realsize);
64    psInternet->nDataLen += realsize;
65    psInternet->pabyData[psInternet->nDataLen] = 0;
66  }
67
68  buffer=NULL;
69  return realsize;
70}
71
72/**
73 * Write the downloaded content in the file pouted by the _HINTERNET structure
74 *
75 * @param buffer the buffer to read
76 * @param size size of each member
77 * @param nmemb number of element to read
78 * @param data the _HINTERNET structure to write in
79 * @return the size red, -1 if buffer is NULL
80 */
81size_t write_data_into_file(void *buffer, size_t size, size_t nmemb, void *data) 
82{ 
83   size_t realsize = size * nmemb;
84   int writen=0;
85   _HINTERNET *psInternet;
86   if(buffer==NULL){
87     buffer=NULL;
88     return -1;
89   }
90   psInternet=(_HINTERNET *)data;
91   writen+=fwrite(buffer, size, nmemb, psInternet->file);
92   fflush(psInternet->file);
93   psInternet->nDataLen += realsize;
94
95   buffer=NULL;
96   return realsize;
97}
98
99
100/**
101 * In case of presence of "Set-Cookie" in the headers red, store the cookie
102 * identifier in cookie
103 *
104 * @param buffer the buffer to read
105 * @param size size of each member
106 * @param nmemb number of element to read
107 * @param data the _HINTERNET structure to write in
108 * @return the size red, -1 if buffer is NULL
109 * @see cookie
110 */
111size_t header_write_data(void *buffer, size_t size, size_t nmemb, void *data){
112  if(strncmp("Set-Cookie: ",(char*)buffer,12)==0){
113    int i;
114    char* tmp;
115    for(i=0;i<12;i++)
116#ifndef WIN32
117      buffer++;
118#else
119        ;
120#endif
121    tmp=strtok((char*) buffer,";"); // knut: added cast to char*
122    int cnt=0;
123    _HINTERNET *psInternet=(_HINTERNET *)data;
124    if(tmp!=NULL && psInternet!=NULL){
125      psInternet->cookie=(char*)malloc(sizeof(char)*(strlen(tmp)+1));
126      sprintf(psInternet->cookie,"%s",tmp);
127    }
128  }
129  return size * nmemb;//write_data_into(buffer,size,nmemb,data,HEADER);
130};
131
132/**
133 * Define the proxy to use for a CURL handler
134 *
135 * @param handle the CURL handler
136 * @param host the proxy host (including http://)
137 * @param port the proxy port
138 */
139void setProxy(CURL* handle,char* host,long port){
140  char* proxyDef=(char*)malloc((strlen(host)+10+2)*sizeof(char));
141  sprintf(proxyDef,"%s:%ld",host,port);
142  curl_easy_setopt(handle,CURLOPT_PROXY,proxyDef);
143  free(proxyDef);
144}
145
146/**
147 * MACOSX
148 */
149#if defined(macintosh) || (defined(__MACH__) && defined(__APPLE__))
150
151
152char* CFStringToCString(CFStringRef dest,char *buffer){
153  CFStringEncoding encoding = kCFStringEncodingUTF8;
154  Boolean bool2 = CFStringGetCString(dest,buffer,1024,encoding);
155  if(bool2){
156    printf("Loaded into local_buffer");
157    return buffer;
158  }
159  return NULL;
160}
161
162OSStatus setProxiesForProtcol(CURL* handle,const char *proto){
163  OSStatus              err;
164  CFDictionaryRef proxyDict;
165  CFArrayRef            proxies;
166 
167  CFStringRef key_enabled = NULL;
168  CFStringRef key_host = NULL;
169  CFStringRef key_port = NULL;
170 
171  bool proxy_enabled;
172  char *proxy_host;
173  long proxy_port;
174 
175  proxyDict = NULL;
176  proxies = NULL;
177
178  err = noErr;
179  proxyDict = SCDynamicStoreCopyProxies(NULL);
180
181  if(strncmp(proto,"http",4)==0){
182      key_enabled=kSCPropNetProxiesHTTPEnable;
183      key_host=kSCPropNetProxiesHTTPProxy;
184      key_port=kSCPropNetProxiesHTTPPort;
185  }
186  else
187    if(strncmp(proto,"https",5)==0){
188      key_enabled=kSCPropNetProxiesHTTPSEnable;
189      key_host=kSCPropNetProxiesHTTPSProxy;
190      key_port=kSCPropNetProxiesHTTPSPort;
191    }
192
193  CFNumberGetValue(CFDictionaryGetValue(proxyDict,key_enabled),kCFNumberIntType,&proxy_enabled);
194  if(proxy_enabled){
195    CFNumberGetValue(CFDictionaryGetValue(proxyDict,key_port),CFNumberGetType(CFDictionaryGetValue(proxyDict,key_port)),&proxy_port);
196    char buffer[1024];
197    CFStringToCString(CFDictionaryGetValue(proxyDict,key_host),buffer);
198    proxy_host=buffer;
199
200#ifdef MSG_LAF_VERBOSE
201    printf("\n**[PROXY SETTINGS DETECTION %s (%d) %s:%li (%s)]**\n",proto,proxy_enabled,(char*)proxy_host,proxy_port,buffer);
202#endif
203
204    if (proxyDict == NULL) {
205      err = coreFoundationUnknownErr;
206    }
207
208    setProxy(handle,proxy_host,proxy_port);
209  }
210  return err;
211}
212#else
213/**
214 * Should autodetect the proxy configuration (do nothing on linux)
215 *
216 * @param handle a CURL handle
217 * @param proto the protocol requiring the use of a proxy
218 */
219int setProxiesForProtcol(CURL* handle,const char *proto){
220#ifdef MSG_LAF_VERBOSE
221  fprintf( stderr, "setProxiesForProtocol (do nothing) ...\n" );
222#endif
223  return 0;
224}
225#endif
226
227/**
228 * Create a HINTERNET
229 *
230 * @param lpszAgent the HTPP User-Agent to use to send requests
231 * @param  dwAccessType type of access required
232 * @param  lpszProxyName the name of the proxy server(s) to use
233 * @param  lpszProxyBypass ip address or host names which should not be routed
234 *  through the proxy
235 * @param  dwFlags Options (INTERNET_FLAG_ASYNC,INTERNET_FLAG_FROM_CACHE,INTERNET_FLAG_OFFLINE)
236 * @return the created HINTERNET
237 */
238HINTERNET InternetOpen(char* lpszAgent,int dwAccessType,char* lpszProxyName,char* lpszProxyBypass,int dwFlags){
239  HINTERNET ret;
240  ret.handle=curl_multi_init();
241  ret.agent=zStrdup(lpszAgent);
242  ret.nb=0;
243  ret.waitingRequests[ret.nb] = NULL;
244  ret.ihandle[ret.nb].header=NULL;
245  ret.ihandle[ret.nb].handle=NULL;
246  ret.ihandle[ret.nb].hasCacheFile=0;
247  ret.ihandle[ret.nb].nDataAlloc = 0;
248  ret.ihandle[ret.nb].url = NULL;
249  ret.ihandle[ret.nb].mimeType = NULL;
250  ret.ihandle[ret.nb].cookie = NULL;
251  ret.ihandle[ret.nb].nDataLen = 0;
252  ret.ihandle[ret.nb].nDataAlloc = 0;
253  ret.ihandle[ret.nb].pabyData = NULL;
254  ret.ihandle[ret.nb].post = NULL;
255  return ret;
256}
257
258/**
259 * Verify if the URL should use a shared cache or not.
260 *
261 * In case the security section contains a key named "shared", then if the
262 * domain listed in the shared key are contained in the url given as parameter
263 * then it return "SHARED" in other cases, it returns "OTHER".
264 *
265 * @param conf the main configuration file maps
266 * @param url the URL to evaluate
267 * @return a string "SHARED" in case the host is in a domain listed in the
268 * shared key, "OTHER" in other cases.
269 */
270char* getProvenance(maps* conf,const char* url){
271  map* sharedCache=getMapFromMaps(conf,"security","shared");
272  char *res="OTHER";
273  char *paths[2]={
274    "mapserverAddress",
275    "tmpUrl"
276  };
277  if(sharedCache!=NULL){
278    char *hosts=sharedCache->value;
279    char *curs=strtok(hosts,",");
280    while(curs!=NULL){
281      if(strstr(url,curs)==NULL){
282        return "SHARED";
283      }
284      curs=strtok(NULL,",");
285    }
286  }
287  for(int i=0;i<2;i++){
288    sharedCache=getMapFromMaps(conf,"main",paths[i]);
289    if(sharedCache!=NULL){
290      if(strstr(url,sharedCache->value)!=NULL){
291        return "LOCAL";
292      }
293    }
294  }
295  return res;
296}
297
298/**
299 * Add missing headers to an existing _HINTERNET
300 *
301 *
302 * @param handle the _HINTERNET pointer
303 * @param key the header parameter name
304 * @param value the header parameter value
305 * @return 0 if the operation succeeded, -1 in other case.
306 */
307int AddMissingHeaderEntry(_HINTERNET* handle,const char* key,const char* value){
308  int length=strlen(key)+strlen(value)+3;
309  char *entry=(char*)malloc((length)*sizeof(char));
310  if(entry==NULL)
311    return -1;
312  snprintf (entry, length, "%s: %s", key, value);
313  handle->header = curl_slist_append (handle->header, entry);
314  free(entry);
315  return 0;
316}
317
318/**
319 * Verify if a host is protected (appear in [security] > hosts)
320 *
321 * @param protectedHosts string containing all the protected hosts (coma separated)
322 * @param url string used to extract the host from
323 * @return 1 if the host is listed as protected, 0 in other case
324 */
325int isProtectedHost(const char* protectedHosts, const char* url) {
326        char *token, *saveptr;
327        int cnt;
328        char* host;
329
330        // knut: make a copy of url since strtok family modifies first argument and cannot be used on constant strings 
331        char* urlcpy = (char*)malloc(sizeof(char)*(strlen(url) + 1));
332        urlcpy = strncpy(urlcpy, url, strlen(url) + 1); // since count > strlen(url), a null character is properly appended
333
334        //token = strtok_r (url, "//", &saveptr);
335        token = strtok_r(urlcpy, "//", &saveptr);   // knut
336        cnt = 0;
337        while (token != NULL && cnt <= 1) {
338                fprintf(stderr, "%s %d %s \n", __FILE__, __LINE__, token);
339                if (cnt == 1)
340                        fprintf(stderr, "%s %d %s \n", __FILE__, __LINE__, strstr(protectedHosts, token));
341                fflush(stderr);
342                if (cnt == 1 && strstr(protectedHosts, token) != NULL) {
343                        fprintf(stderr, "%s %d %s \n", __FILE__, __LINE__, strstr(protectedHosts, token));
344                        free(urlcpy);
345                        return 1;
346                }
347                token = strtok_r(NULL, "/", &saveptr);
348                cnt += 1;
349        }
350        free(urlcpy);
351        return 0;
352}
353
354/**
355 * Add headers defined in [security] > attributes to an existing HINTERNET
356 * @see isProtectedHost, AddMissingHeaderEntry
357 *
358 * @param handle the _HINTERNET pointer
359 * @param conf the header parameter name
360 * @param value the header parameter value
361 * @return 0 if the operation succeeded, -1 in other case.
362 */
363void AddHeaderEntries(HINTERNET* handle,maps* conf){
364  map* passThrough=getMapFromMaps(conf,"security","attributes");
365  map* targetHosts=getMapFromMaps(conf,"security","hosts");
366  char* passedHeader[10];
367  int cnt=0;
368  if(passThrough!=NULL && targetHosts!=NULL){
369    char *tmp=zStrdup(passThrough->value);
370    int i;
371    for(i=0;i<handle->nb;i++){
372      if(strstr(targetHosts->value,"*")!=NULL || isProtectedHost(targetHosts->value,handle->ihandle[i].url)==1){
373        char *token, *saveptr;
374        token = strtok_r (tmp, ",", &saveptr);
375        while (token != NULL){
376          int length=strlen(token)+6;
377          char* tmp1=(char*)malloc(length*sizeof(char));
378          map* tmpMap;
379          snprintf(tmp1,6,"HTTP_");
380          int j;
381          for(j=0;token[j]!='\0';j++){
382            if(token[j]!='-')
383              tmp1[5+j]=toupper(token[j]);
384            else
385              tmp1[5+j]='_';
386            tmp1[5+j+1]='\0';
387          }
388          tmpMap = getMapFromMaps(conf,"renv",tmp1);
389          if(tmpMap!=NULL){
390            AddMissingHeaderEntry(&handle->ihandle[i],token,tmpMap->value);
391          }
392          if(handle->ihandle[i].header!=NULL)
393            curl_easy_setopt(handle->ihandle[i].handle,CURLOPT_HTTPHEADER,handle->ihandle[i].header);
394          free(tmp1);
395          cnt+=1;
396          token = strtok_r (NULL, ",", &saveptr);
397        }
398      }
399    }
400    free(tmp);
401  }
402}
403
404/**
405 * Close a HINTERNET connection and free allocated resources
406 *
407 * @param handle0 the HINTERNET connection to close
408 */
409void InternetCloseHandle(HINTERNET* handle0){
410  int i=0;
411  if(handle0!=NULL){
412    for(i=0;i<handle0->nb;i++){
413      _HINTERNET handle=handle0->ihandle[i];
414      if(handle.hasCacheFile>0){
415        fclose(handle.file);
416        unlink(handle.filename);
417        free(handle.filename);
418      }
419      else{
420        handle.pabyData = NULL;
421        handle.nDataAlloc = handle.nDataLen = 0;
422      }
423      if(handle.header!=NULL){
424        curl_slist_free_all(handle.header);
425        handle.header=NULL;
426      }
427      if(handle.post!=NULL){
428        free(handle.post);
429        handle.post=NULL;
430      }
431      if(handle.url!=NULL){
432        free(handle.url);
433        handle.url=NULL;
434      }
435      if(handle.mimeType!=NULL){
436        free(handle.mimeType);
437        handle.mimeType=NULL;
438      }
439      if(handle.cookie!=NULL){
440        free(handle.cookie);
441        handle.cookie=NULL;
442      }
443      if(handle0->waitingRequests[i]!=NULL){
444        free(handle0->waitingRequests[i]);
445        handle0->waitingRequests[i]=NULL;
446      }
447    }
448    if(handle0->handle)
449      curl_multi_cleanup(handle0->handle);
450    if(handle0->agent!=NULL){
451      free(handle0->agent);
452      handle0->agent=NULL;
453    }
454  }
455}
456
457/**
458 * Create a new element in the download queue
459 *
460 * @param hInternet the HINTERNET connection to add the download link
461 * @param lpszUrl the url to download
462 * @param lpszHeaders the additional headers to be sent to the HTTP server
463 * @param dwHeadersLength the size of the additional headers
464 * @param dwFlags desired download mode (INTERNET_FLAG_NO_CACHE_WRITE for not using cache file)
465 * @param dwContext not used
466 * @param conf the main configuration file maps pointer
467 * @return the updated HINTERNET
468 */
469HINTERNET InternetOpenUrl(HINTERNET* hInternet,LPCTSTR lpszUrl,LPCTSTR lpszHeaders,size_t dwHeadersLength,size_t dwFlags,size_t dwContext,const maps* conf){
470
471  char filename[255];
472  int ldwFlags=INTERNET_FLAG_NEED_FILE;
473  struct MemoryStruct header;
474  map* memUse=getMapFromMaps((maps*) conf,"main","memory"); // knut: addad cast to maps*
475
476  hInternet->ihandle[hInternet->nb].handle=curl_easy_init( );
477  hInternet->ihandle[hInternet->nb].hasCacheFile=0;
478  hInternet->ihandle[hInternet->nb].nDataAlloc = 0;
479  hInternet->ihandle[hInternet->nb].url = NULL;
480  hInternet->ihandle[hInternet->nb].mimeType = NULL;
481  hInternet->ihandle[hInternet->nb].cookie = NULL;
482  hInternet->ihandle[hInternet->nb].nDataLen = 0;
483  hInternet->ihandle[hInternet->nb].id = hInternet->nb;
484  hInternet->ihandle[hInternet->nb].nDataAlloc = 0;
485  hInternet->ihandle[hInternet->nb].pabyData = NULL;
486  hInternet->ihandle[hInternet->nb].post = NULL;
487 
488  curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_COOKIEFILE, "ALL");
489#ifndef TIGER
490  curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_COOKIELIST, "ALL");
491#endif
492  curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_USERAGENT, hInternet->agent);
493 
494  curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle,CURLOPT_FOLLOWLOCATION,1);
495  curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle,CURLOPT_MAXREDIRS,3);
496 
497  header.memory=NULL;
498  header.size = 0;
499
500  curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_HEADERFUNCTION, header_write_data);
501  curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_WRITEHEADER, (void *)&header);
502
503#ifdef MSG_LAF_VERBOSE
504  curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_VERBOSE, 1);
505#endif
506
507  if(memUse!=NULL && strcasecmp(memUse->value,"load")==0)
508    ldwFlags=INTERNET_FLAG_NO_CACHE_WRITE;
509 
510  switch(ldwFlags)
511    {
512    case INTERNET_FLAG_NO_CACHE_WRITE:
513      curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_WRITEFUNCTION, write_data_into);
514      curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_WRITEDATA, (void*)&hInternet->ihandle[hInternet->nb]);
515      hInternet->ihandle[hInternet->nb].hasCacheFile=-1;
516      break;
517    default:
518      memset(filename,0,255);
519      char* tmpUuid=get_uuid();
520      map* tmpPath=NULL;
521      if(conf!=NULL){
522        tmpPath=getMapFromMaps((maps*) conf,"main","tmpPath"); // knut added cast to maps*
523      }
524      if(tmpPath==NULL)
525        sprintf(filename,"/tmp/ZOO_Cache%s", tmpUuid);
526      else
527        sprintf(filename,"%s/ZOO_Cache%s", tmpPath->value,tmpUuid);
528      free(tmpUuid);
529      hInternet->ihandle[hInternet->nb].filename=zStrdup(filename);
530      hInternet->ihandle[hInternet->nb].file=fopen(hInternet->ihandle[hInternet->nb].filename,"w+");
531      hInternet->ihandle[hInternet->nb].hasCacheFile=1;
532      curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_WRITEFUNCTION, write_data_into_file);
533      curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_WRITEDATA, (void*)&hInternet->ihandle[hInternet->nb]);
534      break;
535    }
536#ifdef ULINET_DEBUG
537  fprintf(stderr,"URL (%s)\nBODY (%s)\n",lpszUrl,lpszHeaders);
538#endif
539  if(lpszHeaders!=NULL && strlen(lpszHeaders)>0){
540#ifdef MSG_LAF_VERBOSE
541    fprintf(stderr,"FROM ULINET !!");
542    fprintf(stderr,"HEADER : [%s] %d\n",lpszHeaders,dwHeadersLength);
543#endif
544    curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle,CURLOPT_POST,1);
545#ifdef ULINET_DEBUG
546    fprintf(stderr,"** (%s) %d **\n",lpszHeaders,dwHeadersLength);
547    curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle,CURLOPT_VERBOSE,1);
548#endif
549    hInternet->ihandle[hInternet->nb].post=zStrdup(lpszHeaders);
550    curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle,CURLOPT_POSTFIELDS,hInternet->ihandle[hInternet->nb].post);
551    curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle,CURLOPT_POSTFIELDSIZE,(long)dwHeadersLength);
552  }
553  if(hInternet->ihandle[hInternet->nb].header!=NULL)
554    curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle,CURLOPT_HTTPHEADER,hInternet->ihandle[hInternet->nb].header);
555
556  curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle,CURLOPT_URL,lpszUrl);
557  hInternet->ihandle[hInternet->nb].url = zStrdup(lpszUrl);
558
559  curl_multi_add_handle(hInternet->handle,hInternet->ihandle[hInternet->nb].handle);
560 
561  hInternet->ihandle[hInternet->nb].header=NULL;
562  ++hInternet->nb;
563  hInternet->ihandle[hInternet->nb].header=NULL;
564
565#ifdef ULINET_DEBUG
566  fprintf(stderr,"DEBUG MIMETYPE: %s\n",hInternet.mimeType);
567  fflush(stderr);
568#endif
569  return *hInternet;
570};
571
572/**
573 * Download all opened urls in the queue
574 *
575 * @param hInternet the HINTERNET structure containing the queue
576 * @return 0
577 */
578int processDownloads(HINTERNET* hInternet){
579  int still_running=0,numfds;
580  int msgs_left=0;
581  int i=0;
582  do{
583    CURLMcode mc;
584    mc = curl_multi_perform(hInternet->handle, &still_running);
585    if(mc==CURLM_OK){
586#if LIBCURL_VERSION_MINOR >= 28
587      mc = curl_multi_wait(hInternet->handle, NULL, 0, 1000, &numfds);
588#else
589      struct timeval timeout;
590      fd_set fdread;
591      fd_set fdwrite;
592      fd_set fdexcep;
593      int maxfd = -1;
594
595      long curl_timeo = -1;
596
597      FD_ZERO(&fdread);
598      FD_ZERO(&fdwrite);
599      FD_ZERO(&fdexcep);
600
601      /* set a suitable timeout to play around with */
602      timeout.tv_sec = 1;
603      timeout.tv_usec = 0;
604
605      curl_multi_timeout(hInternet->handle, &curl_timeo);
606      if(curl_timeo >= 0) {
607        timeout.tv_sec = curl_timeo / 1000;
608        if(timeout.tv_sec > 1)
609          timeout.tv_sec = 1;
610        else
611          timeout.tv_usec = (curl_timeo % 1000) * 1000;
612      }
613
614      /* get file descriptors from the transfers */
615      mc = curl_multi_fdset(hInternet->handle, &fdread, &fdwrite, &fdexcep, &maxfd);
616#endif
617    }
618    if(mc != CURLM_OK) {
619      fprintf(stderr, "curl_multi failed, code %d.n", mc);
620      break;
621    }
622  }while(still_running); 
623  for(i=0;i<hInternet->nb;i++){
624    char *tmp;
625    curl_easy_getinfo(hInternet->ihandle[i].handle,CURLINFO_CONTENT_TYPE,&tmp);
626    if(tmp!=NULL)
627      hInternet->ihandle[i].mimeType=zStrdup(tmp);
628    curl_easy_getinfo(hInternet->ihandle[i].handle,CURLINFO_RESPONSE_CODE,&hInternet->ihandle[i].code);
629    curl_multi_remove_handle(hInternet->handle, hInternet->ihandle[i].handle);
630    curl_easy_cleanup(hInternet->ihandle[i].handle);
631  }
632  return 0;
633}
634
635/**
636 * Initialize the cookie for a specific index (hInternet.nb)
637 *
638 * @param hInternet the HINTERNET structure to know the cookie index to reset
639 * @return 1
640 * @see HINTERNET
641 */
642int freeCookieList(HINTERNET hInternet){
643  hInternet.ihandle[hInternet.nb].cookie=zStrdup("");
644#ifndef TIGER
645  curl_easy_setopt(hInternet.ihandle[hInternet.nb].handle, CURLOPT_COOKIELIST, "ALL");
646#endif
647  return 1;
648}
649
650/**
651 * Copy a downloaded content
652 *
653 * @param hInternet the _HINTERNET structure
654 * @param lpBuffer the memory space to copy the downloaded content
655 * @param dwNumberOfBytesToRead the size of lpBuffer
656 * @param lpdwNumberOfBytesRead number of bytes red
657 * @return 1 on success, 0 if failure
658 */
659int InternetReadFile(_HINTERNET hInternet,LPVOID lpBuffer,int dwNumberOfBytesToRead, size_t *lpdwNumberOfBytesRead){
660  int dwDataSize;
661
662  if(hInternet.hasCacheFile>0){
663    fseek (hInternet.file , 0 , SEEK_END);
664    dwDataSize=ftell(hInternet.file); //taille du ficher
665    //dwDataSize=hInternet.nDataLen;
666    //rewind (hInternet.file);
667    fseek(hInternet.file, 0, SEEK_SET);
668  }
669  else{
670    memset(lpBuffer,0,hInternet.nDataLen+1);
671    memcpy(lpBuffer, hInternet.pabyData, hInternet.nDataLen );
672    dwDataSize=hInternet.nDataLen;
673    free( hInternet.pabyData );
674    hInternet.pabyData=NULL;
675  }
676
677  if( dwNumberOfBytesToRead /* buffer size */ < dwDataSize ){
678    return 0;
679  }
680
681#ifdef MSG_LAF_VERBOSE
682  fprintf(stderr,"\nfile size : %dko\n",dwDataSize/1024);
683#endif
684
685  if(hInternet.hasCacheFile>0){
686    int freadRes = fread(lpBuffer,dwDataSize+1,1,hInternet.file); 
687    *lpdwNumberOfBytesRead = hInternet.nDataLen;
688  }
689  else{
690    *lpdwNumberOfBytesRead = hInternet.nDataLen;
691    free( hInternet.pabyData );
692    hInternet.pabyData = NULL;
693    hInternet.nDataAlloc = hInternet.nDataLen = 0;
694  }
695
696  if( *lpdwNumberOfBytesRead < dwDataSize )
697      return 0;
698  else
699      return 1; // TRUE
700}
701
702
703/**
704 * Use basic authentication for accessing a resource
705 *
706 * @param hInternet the _HINTERNET structure
707 * @param login the login to use to authenticate
708 * @param passwd the password to use to authenticate
709 */
710int setBasicAuth(HINTERNET hInternet,char* login,char* passwd){
711  char *tmp;
712  tmp=(char*)malloc((strlen(login)+strlen(passwd)+2)*sizeof(char));
713  sprintf(tmp,"%s:%s",login,passwd);
714  if(curl_easy_setopt(hInternet.ihandle[hInternet.nb].handle,CURLOPT_USERPWD,tmp)==CURLE_OUT_OF_MEMORY){
715    free(tmp);
716    return -1;
717  }
718  curl_easy_setopt(hInternet.ihandle[hInternet.nb].handle, CURLOPT_HTTPAUTH,CURLAUTH_ANY);
719  free(tmp);
720  return 0;
721}
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