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curl

    1: /***************************************************************************
    2:  *                                  _   _ ____  _
    3:  *  Project                     ___| | | |  _ \| |
    4:  *                             / __| | | | |_) | |
    5:  *                            | (__| |_| |  _ <| |___
    6:  *                             \___|\___/|_| \_\_____|
    7:  *
    8:  * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@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: 
   23: /* Test suppressing the If-Modified-Since header */
   24: 
   25: #include "test.h"
   26: 
   27: #include "memdebug.h"
   28: 
   29: int test(char *URL)
   30: {
   31:   struct curl_slist *header = NULL;
   32:   long unmet;
   33:   CURL *curl = NULL;
   34:   int res = 0;
   35: 
   36:   global_init(CURL_GLOBAL_ALL);
   37: 
   38:   easy_init(curl);
   39: 
   40:   easy_setopt(curl, CURLOPT_URL, URL);
   41:   easy_setopt(curl, CURLOPT_TIMECONDITION, (long)CURL_TIMECOND_IFMODSINCE);
   42:   /* Some TIMEVALUE; it doesn't matter. */
   43:   easy_setopt(curl, CURLOPT_TIMEVALUE, 1566210680L);
   44: 
   45:   header = curl_slist_append(NULL, "If-Modified-Since:");
   46:   if(!header) {
   47:     res = TEST_ERR_MAJOR_BAD;
   48:     goto test_cleanup;
   49:   }
   50: 
   51:   easy_setopt(curl, CURLOPT_HTTPHEADER, header);
   52: 
   53:   res = curl_easy_perform(curl);
   54:   if(res)
   55:     goto test_cleanup;
   56: 
   57:   /* Confirm that the condition checking still worked, even though we
   58:    * suppressed the actual header.
   59:    * The server returns 304, which means the condition is "unmet".
   60:    */
   61: 
   62:   res = curl_easy_getinfo(curl, CURLINFO_CONDITION_UNMET, &unmet);
   63:   if(res)
   64:     goto test_cleanup;
   65: 
   66:   if(unmet != 1L) {
   67:     res = TEST_ERR_FAILURE;
   68:     goto test_cleanup;
   69:   }
   70: 
   71: test_cleanup:
   72: 
   73:   /* always cleanup */
   74:   curl_easy_cleanup(curl);
   75:   curl_slist_free_all(header);
   76:   curl_global_cleanup();
   77: 
   78:   return res;
   79: }