source: trunk/zoo-project/zoo-kernel/ulinet.c @ 827

Last change on this file since 827 was 827, checked in by djay, 2 years ago

Fix issue with setProxiesForProtcol signature

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File size: 17.7 KB
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1/*
2 *  ulinet.c
3 *
4 * Author : Gérald FENOY
5 *
6 * Copyright (c) 2008-2015 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 <assert.h>
32#include <ctype.h>
33
34/**
35 * Write the downloaded content to a _HINTERNET structure
36 *
37 * @param buffer the buffer to read
38 * @param size size of each member
39 * @param nmemb number of element to read
40 * @param data the _HINTERNET structure to write in
41 * @return the size red, -1 if buffer is NULL
42 */
43size_t write_data_into(void *buffer, size_t size, size_t nmemb, void *data){
44  size_t realsize = size * nmemb;
45  _HINTERNET *psInternet;
46  if(buffer==NULL){
47    buffer=NULL;
48    return -1;
49  }
50  psInternet=(_HINTERNET *)data;
51  if(psInternet->pabyData){
52    psInternet->pabyData=(unsigned char*)realloc(psInternet->pabyData,psInternet->nDataLen+realsize+1);
53    psInternet->nDataAlloc+=psInternet->nDataLen+realsize+1;
54  }
55  else{
56    psInternet->pabyData=(unsigned char*)malloc(psInternet->nDataLen+realsize+1);
57    psInternet->nDataAlloc=realsize+1;
58  }
59
60  if (psInternet->pabyData) {
61    memcpy( psInternet->pabyData + psInternet->nDataLen, buffer, realsize);
62    psInternet->nDataLen += realsize;
63    psInternet->pabyData[psInternet->nDataLen] = 0;
64  }
65
66  buffer=NULL;
67  return realsize;
68}
69
70/**
71 * In case of presence of "Set-Cookie" in the headers red, store the cookie
72 * identifier in CCookie
73 *
74 * @param buffer the buffer to read
75 * @param size size of each member
76 * @param nmemb number of element to read
77 * @param data the _HINTERNET structure to write in
78 * @return the size red, -1 if buffer is NULL
79 * @see CCookie
80 */
81size_t header_write_data(void *buffer, size_t size, size_t nmemb, void *data){
82  if(strncmp("Set-Cookie: ",(char*)buffer,12)==0){
83    int i;
84    char* tmp;
85    for(i=0;i<12;i++)
86#ifndef WIN32
87      buffer++;
88#else
89        ;
90#endif
91    _HINTERNET *psInternet=(_HINTERNET *)data;
92    tmp=strtok(buffer,";");
93    if(tmp!=NULL){
94      sprintf(CCookie[psInternet->id],"%s",tmp);
95    }
96  }
97  return size * nmemb;//write_data_into(buffer,size,nmemb,data,HEADER);
98};
99
100/**
101 * Define the proxy to use for a CURL handler
102 *
103 * @param handle the CURL handler
104 * @param host the proxy host (including http://)
105 * @param port the proxy port
106 */
107void setProxy(CURL* handle,char* host,long port){
108  char* proxyDef=(char*)malloc((strlen(host)+10+2)*sizeof(char));
109  sprintf(proxyDef,"%s:%ld",host,port);
110  curl_easy_setopt(handle,CURLOPT_PROXY,proxyDef);
111  free(proxyDef);
112}
113
114/**
115 * MACOSX
116 */
117#if defined(macintosh) || (defined(__MACH__) && defined(__APPLE__))
118
119
120char* CFStringToCString(CFStringRef dest,char *buffer){
121  CFStringEncoding encoding = kCFStringEncodingUTF8;
122  Boolean bool2 = CFStringGetCString(dest,buffer,1024,encoding);
123  if(bool2){
124    printf("Loaded into local_buffer");
125    return buffer;
126  }
127  return NULL;
128}
129
130OSStatus setProxiesForProtcol(CURL* handle,const char *proto){
131  OSStatus              err;
132  CFDictionaryRef proxyDict;
133  CFArrayRef            proxies;
134 
135  CFStringRef key_enabled = NULL;
136  CFStringRef key_host = NULL;
137  CFStringRef key_port = NULL;
138 
139  bool proxy_enabled;
140  char *proxy_host;
141  long proxy_port;
142 
143  proxyDict = NULL;
144  proxies = NULL;
145
146  err = noErr;
147  proxyDict = SCDynamicStoreCopyProxies(NULL);
148
149  if(strncmp(proto,"http",4)==0){
150      key_enabled=kSCPropNetProxiesHTTPEnable;
151      key_host=kSCPropNetProxiesHTTPProxy;
152      key_port=kSCPropNetProxiesHTTPPort;
153  }
154  else
155    if(strncmp(proto,"https",5)==0){
156      key_enabled=kSCPropNetProxiesHTTPSEnable;
157      key_host=kSCPropNetProxiesHTTPSProxy;
158      key_port=kSCPropNetProxiesHTTPSPort;
159    }
160
161  CFNumberGetValue(CFDictionaryGetValue(proxyDict,key_enabled),kCFNumberIntType,&proxy_enabled);
162  if(proxy_enabled){
163    CFNumberGetValue(CFDictionaryGetValue(proxyDict,key_port),CFNumberGetType(CFDictionaryGetValue(proxyDict,key_port)),&proxy_port);
164    char buffer[1024];
165    CFStringToCString(CFDictionaryGetValue(proxyDict,key_host),buffer);
166    proxy_host=buffer;
167
168#ifdef MSG_LAF_VERBOSE
169    printf("\n**[PROXY SETTINGS DETECTION %s (%d) %s:%li (%s)]**\n",proto,proxy_enabled,(char*)proxy_host,proxy_port,buffer);
170#endif
171
172    if (proxyDict == NULL) {
173      err = coreFoundationUnknownErr;
174    }
175
176    setProxy(handle,proxy_host,proxy_port);
177  }
178  return err;
179}
180#else
181/**
182 * Should autodetect the proxy configuration (do nothing on linux)
183 *
184 * @param handle a CURL handle
185 * @param proto the protocol requiring the use of a proxy
186 */
187bool setProxiesForProtcol(CURL* handle,const char *proto){
188#ifdef MSG_LAF_VERBOSE
189  fprintf( stderr, "setProxiesForProtocol (do nothing) ...\n" );
190#endif
191  return 0;
192}
193#endif
194
195/**
196 * Create a HINTERNET
197 *
198 * @param lpszAgent the HTPP User-Agent to use to send requests
199 * @param  dwAccessType type of access required
200 * @param  lpszProxyName the name of the proxy server(s) to use
201 * @param  lpszProxyBypass ip address or host names which should not be routed
202 *  through the proxy
203 * @param  dwFlags Options (INTERNET_FLAG_ASYNC,INTERNET_FLAG_FROM_CACHE,INTERNET_FLAG_OFFLINE)
204 * @return the created HINTERNET
205 */
206HINTERNET InternetOpen(char* lpszAgent,int dwAccessType,char* lpszProxyName,char* lpszProxyBypass,int dwFlags){
207  HINTERNET ret;
208  ret.handle=curl_multi_init();
209  ret.agent=strdup(lpszAgent);
210  ret.nb=0;
211  ret.ihandle[ret.nb].header=NULL;
212  return ret;
213}
214
215/**
216 * Add missing headers to an existing _HINTERNET
217 *
218 *
219 * @param handle the _HINTERNET pointer
220 * @param key the header parameter name
221 * @param value the header parameter value
222 * @return 0 if the operation succeeded, -1 in other case.
223 */
224int AddMissingHeaderEntry(_HINTERNET* handle,const char* key,const char* value){
225  int length=strlen(key)+strlen(value)+3;
226  char *entry=(char*)malloc((length)*sizeof(char));
227  if(entry==NULL)
228    return -1;
229  snprintf (entry, length, "%s: %s", key, value);
230  handle->header = curl_slist_append (handle->header, entry);
231  free(entry);
232  return 0;
233}
234
235/**
236 * Verify if a host is protected (appear in [security] > hosts)
237 *
238 * @param protectedHosts string containing all the protected hosts (coma separated)
239 * @param url string used to extract the host from
240 * @return 1 if the host is listed as protected, 0 in other case
241 */
242int isProtectedHost(const char* protectedHosts,const char* url){
243  char *token, *saveptr;
244  token = strtok_r (url, "//", &saveptr);
245  int cnt=0;
246  char* host;
247  while(token!=NULL && cnt<=1){
248    fprintf(stderr,"%s %d %s \n",__FILE__,__LINE__,token);
249    if(cnt==1)
250      fprintf(stderr,"%s %d %s \n",__FILE__,__LINE__,strstr(protectedHosts,token));
251    fflush(stderr);
252    if(cnt==1 && strstr(protectedHosts,token)!=NULL){
253      fprintf(stderr,"%s %d %s \n",__FILE__,__LINE__,strstr(protectedHosts,token));
254      return 1;
255    }
256    token = strtok_r (NULL, "/", &saveptr);
257    cnt+=1;
258  }
259  return 0;
260}
261
262/**
263 * Add headers defined in [security] > attributes to an existing HINTERNET
264 * @see isProtectedHost, AddMissingHeaderEntry
265 *
266 * @param handle the _HINTERNET pointer
267 * @param conf the header parameter name
268 * @param value the header parameter value
269 * @return 0 if the operation succeeded, -1 in other case.
270 */
271void AddHeaderEntries(HINTERNET* handle,maps* conf){
272  map* passThrough=getMapFromMaps(conf,"security","attributes");
273  map* targetHosts=getMapFromMaps(conf,"security","hosts");
274  char* passedHeader[10];
275  int cnt=0;
276  if(passThrough!=NULL && targetHosts!=NULL){
277    char *tmp=zStrdup(passThrough->value);
278    char *token, *saveptr;
279    token = strtok_r (tmp, ",", &saveptr);
280    int i;
281    for(i=0;i<handle->nb;i++){
282      if(targetHosts->value[0]=='*' || isProtectedHost(targetHosts->value,handle->ihandle[i].url)==1){
283        while (token != NULL){
284          int length=strlen(token)+6;
285          char* tmp1=(char*)malloc(length*sizeof(char));
286          snprintf(tmp1,6,"HTTP_");
287          int j;
288          for(j=0;token[j]!='\0';j++){
289            if(token[j]!='-')
290              tmp1[5+j]=toupper(token[i]);
291            else
292              tmp1[5+j]='_';
293            tmp1[5+j+1]='\0';
294          }
295          fprintf(stderr,"%s %d %s \n",__FILE__,__LINE__,tmp1);
296          map* tmpMap = getMapFromMaps(conf,"renv",tmp1);
297          if(tmpMap!=NULL)         
298            AddMissingHeaderEntry(&handle->ihandle[i],token,tmpMap->value);
299          free(tmp1);
300          if(handle->ihandle[i].header!=NULL)
301            curl_easy_setopt(handle->ihandle[i].handle,CURLOPT_HTTPHEADER,handle->ihandle[i].header);
302          cnt+=1;
303          token = strtok_r (NULL, ",", &saveptr);
304        }
305      }
306    }
307    free(tmp);
308  }
309}
310
311/**
312 * Close a HINTERNET connection and free allocated resources
313 *
314 * @param handle0 the HINTERNET connection to close
315 */
316void InternetCloseHandle(HINTERNET* handle0){
317  int i=0;
318  for(i=0;i<handle0->nb;i++){
319    _HINTERNET handle=handle0->ihandle[i];
320    if(handle.hasCacheFile>0){
321      fclose(handle.file);
322      unlink(handle.filename);
323    }
324    else{
325      handle.pabyData = NULL;
326      handle.nDataAlloc = handle.nDataLen = 0;
327    }
328    if(handle0->ihandle[i].header!=NULL){
329      curl_slist_free_all(handle0->ihandle[i].header);
330      handle0->ihandle[i].header=NULL;
331    }
332    if(handle.post!=NULL)
333      free(handle.post);
334    if(handle.url!=NULL)
335      free(handle.url);
336    free(handle.mimeType);
337    handle.mimeType = NULL;
338  }
339  if(handle0->handle)
340    curl_multi_cleanup(handle0->handle);
341  free(handle0->agent);
342  for(i=handle0->nb-1;i>=0;i--){
343    free(handle0->waitingRequests[i]);
344  }
345}
346
347/**
348 * Create a new element in the download queue
349 *
350 * @param hInternet the HINTERNET connection to add the download link
351 * @param lpszUrl the url to download
352 * @param lpszHeaders the additional headers to be sent to the HTTP server
353 * @param dwHeadersLength the size of the additional headers
354 * @param dwFlags desired download mode (INTERNET_FLAG_NO_CACHE_WRITE for not using cache file)
355 * @param dwContext not used
356 */
357HINTERNET InternetOpenUrl(HINTERNET* hInternet,LPCTSTR lpszUrl,LPCTSTR lpszHeaders,size_t dwHeadersLength,size_t dwFlags,size_t dwContext){
358
359  char filename[255];
360  struct MemoryStruct header;
361
362  hInternet->ihandle[hInternet->nb].handle=curl_easy_init( );
363  hInternet->ihandle[hInternet->nb].hasCacheFile=0;
364  hInternet->ihandle[hInternet->nb].nDataAlloc = 0;
365  hInternet->ihandle[hInternet->nb].url = NULL;
366  hInternet->ihandle[hInternet->nb].mimeType = NULL;
367  hInternet->ihandle[hInternet->nb].nDataLen = 0;
368  hInternet->ihandle[hInternet->nb].id = hInternet->nb;
369  hInternet->ihandle[hInternet->nb].nDataAlloc = 0;
370  hInternet->ihandle[hInternet->nb].pabyData = NULL;
371  hInternet->ihandle[hInternet->nb].post = NULL;
372
373  curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_COOKIEFILE, "ALL");
374#ifndef TIGER
375  curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_COOKIELIST, "ALL");
376#endif
377  curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_USERAGENT, hInternet->agent);
378 
379  curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle,CURLOPT_FOLLOWLOCATION,1);
380  curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle,CURLOPT_MAXREDIRS,3);
381 
382  header.memory=NULL;
383  header.size = 0;
384
385  curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_HEADERFUNCTION, header_write_data);
386  curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_WRITEHEADER, (void *)&header);
387
388#ifdef MSG_LAF_VERBOSE
389  curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_VERBOSE, 1);
390#endif
391
392     
393  switch(dwFlags)
394    {
395    case INTERNET_FLAG_NO_CACHE_WRITE:
396      hInternet->ihandle[hInternet->nb].hasCacheFile=-1;
397      curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_WRITEFUNCTION, write_data_into);
398      curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_WRITEDATA, (void*)&hInternet->ihandle[hInternet->nb]);
399      break;
400    default:
401      sprintf(hInternet->ihandle[hInternet->nb].filename,"/tmp/ZOO_Cache%d",(int)time(NULL));
402      hInternet->ihandle[hInternet->nb].filename[24]=0;
403#ifdef MSG_LAF_VERBOSE
404      fprintf(stderr,"file=%s",hInternet->ihandle[hInternet->nb].filename);
405#endif
406      hInternet->ihandle[hInternet->nb].filename=filename;
407      hInternet->ihandle[hInternet->nb].file=fopen(hInternet->ihandle[hInternet->nb].filename,"w+");
408   
409      hInternet->ihandle[hInternet->nb].hasCacheFile=1;
410      curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_WRITEFUNCTION, NULL);
411      curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle, CURLOPT_WRITEDATA, hInternet->ihandle[hInternet->nb].file);
412      hInternet->ihandle[hInternet->nb].nDataLen=0;
413      break;
414    }
415#ifdef ULINET_DEBUG
416  fprintf(stderr,"URL (%s)\nBODY (%s)\n",lpszUrl,lpszHeaders);
417#endif
418  if(lpszHeaders!=NULL && strlen(lpszHeaders)>0){
419#ifdef MSG_LAF_VERBOSE
420    fprintf(stderr,"FROM ULINET !!");
421    fprintf(stderr,"HEADER : [%s] %d\n",lpszHeaders,dwHeadersLength);
422#endif
423    curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle,CURLOPT_POST,1);
424#ifdef ULINET_DEBUG
425    fprintf(stderr,"** (%s) %d **\n",lpszHeaders,dwHeadersLength);
426    curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle,CURLOPT_VERBOSE,1);
427#endif
428    hInternet->ihandle[hInternet->nb].post=strdup(lpszHeaders);
429    curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle,CURLOPT_POSTFIELDS,hInternet->ihandle[hInternet->nb].post);
430    curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle,CURLOPT_POSTFIELDSIZE,(long)dwHeadersLength);
431  }
432  if(hInternet->ihandle[hInternet->nb].header!=NULL)
433    curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle,CURLOPT_HTTPHEADER,hInternet->ihandle[hInternet->nb].header);
434
435  curl_easy_setopt(hInternet->ihandle[hInternet->nb].handle,CURLOPT_URL,lpszUrl);
436  hInternet->ihandle[hInternet->nb].url = zStrdup(lpszUrl);
437
438  curl_multi_add_handle(hInternet->handle,hInternet->ihandle[hInternet->nb].handle);
439 
440  hInternet->ihandle[hInternet->nb].header=NULL;
441  ++hInternet->nb;
442
443#ifdef ULINET_DEBUG
444  fprintf(stderr,"DEBUG MIMETYPE: %s\n",hInternet.mimeType);
445  fflush(stderr);
446#endif
447  return *hInternet;
448};
449
450/**
451 * Download all opened urls in the queue
452 *
453 * @param hInternet the HINTERNET structure containing the queue
454 * @return 0
455 */
456int processDownloads(HINTERNET* hInternet){
457  int still_running=0;
458  int msgs_left=0;
459  int i=0;
460  do{
461    curl_multi_perform(hInternet->handle, &still_running);
462  }while(still_running); 
463  for(i=0;i<hInternet->nb;i++){
464    char *tmp;
465    curl_easy_getinfo(hInternet->ihandle[i].handle,CURLINFO_CONTENT_TYPE,&tmp);
466    if(tmp!=NULL)
467      hInternet->ihandle[i].mimeType=strdup(tmp);
468    curl_easy_getinfo(hInternet->ihandle[i].handle,CURLINFO_RESPONSE_CODE,&hInternet->ihandle[i].code);
469    curl_multi_remove_handle(hInternet->handle, hInternet->ihandle[i].handle);
470    curl_easy_cleanup(hInternet->ihandle[i].handle);
471  }
472  return 0;
473}
474
475/**
476 * Initialize the CCookie for a specific index (hInternet.nb)
477 *
478 * @param hInternet the HINTERNET structure to know the CCookie index to reset
479 * @return 1
480 * @see HINTERNET
481 */
482int freeCookieList(HINTERNET hInternet){
483  memset(&CCookie[hInternet.nb][0],0,1024);
484#ifndef TIGER
485  curl_easy_setopt(hInternet.ihandle[hInternet.nb].handle, CURLOPT_COOKIELIST, "ALL");
486#endif
487  return 1;
488}
489
490/**
491 * Copy a downloaded content
492 *
493 * @param hInternet the _HINTERNET structure
494 * @param lpBuffer the memory space to copy the downloaded content
495 * @param dwNumberOfBytesToRead the size of lpBuffer
496 * @param lpdwNumberOfBytesRead number of bytes red
497 * @return 1 on success, 0 if failure
498 */
499int InternetReadFile(_HINTERNET hInternet,LPVOID lpBuffer,int dwNumberOfBytesToRead, size_t *lpdwNumberOfBytesRead){
500  int dwDataSize;
501
502  if(hInternet.hasCacheFile>0){
503    fseek (hInternet.file , 0 , SEEK_END);
504    dwDataSize=ftell(hInternet.file); //taille du ficher
505    rewind (hInternet.file);
506  }
507  else{
508    memset(lpBuffer,0,hInternet.nDataLen+1);
509    memcpy(lpBuffer, hInternet.pabyData, hInternet.nDataLen );
510    dwDataSize=hInternet.nDataLen;
511    free( hInternet.pabyData );
512    hInternet.pabyData=NULL;
513  }
514
515  if( dwNumberOfBytesToRead /* buffer size */ < dwDataSize )
516    return 0;
517
518#ifdef MSG_LAF_VERBOSE
519  printf("\nfile size : %dko\n",dwDataSize/1024);
520#endif
521
522  if(hInternet.hasCacheFile>0){
523    *lpdwNumberOfBytesRead = fread(lpBuffer,1,dwDataSize,hInternet.file); 
524  }
525  else{
526    *lpdwNumberOfBytesRead = hInternet.nDataLen;
527    free( hInternet.pabyData );
528    hInternet.pabyData = NULL;
529    hInternet.nDataAlloc = hInternet.nDataLen = 0;
530  }
531
532  CCookie[hInternet.id][0]=0;
533
534  if( *lpdwNumberOfBytesRead < dwDataSize )
535      return 0;
536  else
537      return 1; // TRUE
538}
539
540
541/**
542 * Use basic authentication for accessing a resource
543 *
544 * @param hInternet the _HINTERNET structure
545 * @param login the login to use to authenticate
546 * @param passwd the password to use to authenticate
547 */
548int setBasicAuth(HINTERNET hInternet,char* login,char* passwd){
549  char *tmp;
550  tmp=(char*)malloc((strlen(login)+strlen(passwd)+2)*sizeof(char));
551  sprintf(tmp,"%s:%s",login,passwd);
552  if(curl_easy_setopt(hInternet.ihandle[hInternet.nb].handle,CURLOPT_USERPWD,tmp)==CURLE_OUT_OF_MEMORY){
553    free(tmp);
554    return -1;
555  }
556  curl_easy_setopt(hInternet.ihandle[hInternet.nb].handle, CURLOPT_HTTPAUTH,CURLAUTH_ANY);
557  free(tmp);
558  return 0;
559}
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