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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 #include "tool_setup.h"
     23 
     24 #include "strcase.h"
     25 
     26 #define ENABLE_CURLX_PRINTF
     27 /* use our own printf() functions */
     28 #include "curlx.h"
     29 
     30 #include "tool_cfgable.h"
     31 #include "tool_msgs.h"
     32 #include "tool_getparam.h"
     33 #include "tool_helpers.h"
     34 
     35 #include "memdebug.h" /* keep this as LAST include */
     36 
     37 /*
     38 ** Helper functions that are used from more than one source file.
     39 */
     40 
     41 const char *param2text(int res)
     42 {
     43   ParameterError error = (ParameterError)res;
     44   switch(error) {
     45   case PARAM_GOT_EXTRA_PARAMETER:
     46     return "had unsupported trailing garbage";
     47   case PARAM_OPTION_UNKNOWN:
     48     return "is unknown";
     49   case PARAM_OPTION_AMBIGUOUS:
     50     return "is ambiguous";
     51   case PARAM_REQUIRES_PARAMETER:
     52     return "requires parameter";
     53   case PARAM_BAD_USE:
     54     return "is badly used here";
     55   case PARAM_BAD_NUMERIC:
     56     return "expected a proper numerical parameter";
     57   case PARAM_NEGATIVE_NUMERIC:
     58     return "expected a positive numerical parameter";
     59   case PARAM_LIBCURL_DOESNT_SUPPORT:
     60     return "the installed libcurl version doesn't support this";
     61   case PARAM_LIBCURL_UNSUPPORTED_PROTOCOL:
     62     return "a specified protocol is unsupported by libcurl";
     63   case PARAM_NO_MEM:
     64     return "out of memory";
     65   case PARAM_NO_PREFIX:
     66     return "the given option can't be reversed with a --no- prefix";
     67   case PARAM_NUMBER_TOO_LARGE:
     68     return "too large number";
     69   default:
     70     return "unknown error";
     71   }
     72 }
     73 
     74 int SetHTTPrequest(struct OperationConfig *config, HttpReq req, HttpReq *store)
     75 {
     76   /* this mirrors the HttpReq enum in tool_sdecls.h */
     77   const char *reqname[]= {
     78     "", /* unspec */
     79     "GET (-G, --get)",
     80     "HEAD (-I, --head)",
     81     "multipart formpost (-F, --form)",
     82     "POST (-d, --data)"
     83   };
     84 
     85   if((*store == HTTPREQ_UNSPEC) ||
     86      (*store == req)) {
     87     *store = req;
     88     return 0;
     89   }
     90   warnf(config->global, "You can only select one HTTP request method! "
     91         "You asked for both %s and %s.\n",
     92         reqname[req], reqname[*store]);
     93 
     94   return 1;
     95 }
     96 
     97 void customrequest_helper(struct OperationConfig *config, HttpReq req,
     98                           char *method)
     99 {
    100   /* this mirrors the HttpReq enum in tool_sdecls.h */
    101   const char *dflt[]= {
    102     "GET",
    103     "GET",
    104     "HEAD",
    105     "POST",
    106     "POST"
    107   };
    108 
    109   if(!method)
    110     ;
    111   else if(curl_strequal(method, dflt[req])) {
    112     notef(config->global, "Unnecessary use of -X or --request, %s is already "
    113           "inferred.\n", dflt[req]);
    114   }
    115   else if(curl_strequal(method, "head")) {
    116     warnf(config->global,
    117           "Setting custom HTTP method to HEAD with -X/--request may not work "
    118           "the way you want. Consider using -I/--head instead.\n");
    119   }
    120 }
    121