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      1 /***************************************************************************
      2  *                                  _   _ ____  _
      3  *  Project                     ___| | | |  _ \| |
      4  *                             / __| | | | |_) | |
      5  *                            | (__| |_| |  _ <| |___
      6  *                             \___|\___/|_| \_\_____|
      7  *
      8  * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel (at) haxx.se>, et al.
      9  *
     10  * This software is licensed as described in the file COPYING, which
     11  * you should have received as part of this distribution. The terms
     12  * are also available at https://curl.haxx.se/docs/copyright.html.
     13  *
     14  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
     15  * copies of the Software, and permit persons to whom the Software is
     16  * furnished to do so, under the terms of the COPYING file.
     17  *
     18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
     19  * KIND, either express or implied.
     20  *
     21  ***************************************************************************/
     22 /* <DESC>
     23  * Import and export cookies with COOKIELIST.
     24  * </DESC>
     25  */
     26 
     27 #include <stdio.h>
     28 #include <string.h>
     29 #include <stdlib.h>
     30 #include <errno.h>
     31 #include <time.h>
     32 
     33 #include <curl/curl.h>
     34 
     35 static void
     36 print_cookies(CURL *curl)
     37 {
     38   CURLcode res;
     39   struct curl_slist *cookies;
     40   struct curl_slist *nc;
     41   int i;
     42 
     43   printf("Cookies, curl knows:\n");
     44   res = curl_easy_getinfo(curl, CURLINFO_COOKIELIST, &cookies);
     45   if(res != CURLE_OK) {
     46     fprintf(stderr, "Curl curl_easy_getinfo failed: %s\n",
     47             curl_easy_strerror(res));
     48     exit(1);
     49   }
     50   nc = cookies;
     51   i = 1;
     52   while(nc) {
     53     printf("[%d]: %s\n", i, nc->data);
     54     nc = nc->next;
     55     i++;
     56   }
     57   if(i == 1) {
     58     printf("(none)\n");
     59   }
     60   curl_slist_free_all(cookies);
     61 }
     62 
     63 int
     64 main(void)
     65 {
     66   CURL *curl;
     67   CURLcode res;
     68 
     69   curl_global_init(CURL_GLOBAL_ALL);
     70   curl = curl_easy_init();
     71   if(curl) {
     72     char nline[256];
     73 
     74     curl_easy_setopt(curl, CURLOPT_URL, "http://www.example.com/");
     75     curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
     76     curl_easy_setopt(curl, CURLOPT_COOKIEFILE, ""); /* start cookie engine */
     77     res = curl_easy_perform(curl);
     78     if(res != CURLE_OK) {
     79       fprintf(stderr, "Curl perform failed: %s\n", curl_easy_strerror(res));
     80       return 1;
     81     }
     82 
     83     print_cookies(curl);
     84 
     85     printf("Erasing curl's knowledge of cookies!\n");
     86     curl_easy_setopt(curl, CURLOPT_COOKIELIST, "ALL");
     87 
     88     print_cookies(curl);
     89 
     90     printf("-----------------------------------------------\n"
     91            "Setting a cookie \"PREF\" via cookie interface:\n");
     92 #ifdef WIN32
     93 #define snprintf _snprintf
     94 #endif
     95     /* Netscape format cookie */
     96     snprintf(nline, sizeof(nline), "%s\t%s\t%s\t%s\t%lu\t%s\t%s",
     97              ".example.com", "TRUE", "/", "FALSE",
     98              (unsigned long)time(NULL) + 31337UL,
     99              "PREF", "hello example, i like you very much!");
    100     res = curl_easy_setopt(curl, CURLOPT_COOKIELIST, nline);
    101     if(res != CURLE_OK) {
    102       fprintf(stderr, "Curl curl_easy_setopt failed: %s\n",
    103               curl_easy_strerror(res));
    104       return 1;
    105     }
    106 
    107     /* HTTP-header style cookie. If you use the Set-Cookie format and don't
    108     specify a domain then the cookie is sent for any domain and will not be
    109     modified, likely not what you intended. Starting in 7.43.0 any-domain
    110     cookies will not be exported either. For more information refer to the
    111     CURLOPT_COOKIELIST documentation.
    112     */
    113     snprintf(nline, sizeof(nline),
    114       "Set-Cookie: OLD_PREF=3d141414bf4209321; "
    115       "expires=Sun, 17-Jan-2038 19:14:07 GMT; path=/; domain=.example.com");
    116     res = curl_easy_setopt(curl, CURLOPT_COOKIELIST, nline);
    117     if(res != CURLE_OK) {
    118       fprintf(stderr, "Curl curl_easy_setopt failed: %s\n",
    119               curl_easy_strerror(res));
    120       return 1;
    121     }
    122 
    123     print_cookies(curl);
    124 
    125     res = curl_easy_perform(curl);
    126     if(res != CURLE_OK) {
    127       fprintf(stderr, "Curl perform failed: %s\n", curl_easy_strerror(res));
    128       return 1;
    129     }
    130 
    131     curl_easy_cleanup(curl);
    132   }
    133   else {
    134     fprintf(stderr, "Curl init failed!\n");
    135     return 1;
    136   }
    137 
    138   curl_global_cleanup();
    139   return 0;
    140 }
    141