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    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:  * RFC6749 OAuth 2.0 Authorization Framework
   22:  *
   23:  ***************************************************************************/
   24: 
   25: #include "curl_setup.h"
   26: 
   27: #if !defined(CURL_DISABLE_IMAP) || !defined(CURL_DISABLE_SMTP) || \
   28:   !defined(CURL_DISABLE_POP3)
   29: 
   30: #include <curl/curl.h>
   31: #include "urldata.h"
   32: 
   33: #include "vauth/vauth.h"
   34: #include "curl_base64.h"
   35: #include "warnless.h"
   36: #include "curl_printf.h"
   37: 
   38: /* The last #include files should be: */
   39: #include "curl_memory.h"
   40: #include "memdebug.h"
   41: 
   42: /*
   43:  * Curl_auth_create_oauth_bearer_message()
   44:  *
   45:  * This is used to generate an already encoded OAuth 2.0 message ready for
   46:  * sending to the recipient.
   47:  *
   48:  * Parameters:
   49:  *
   50:  * data[in]         - The session handle.
   51:  * user[in]         - The user name.
   52:  * host[in]         - The host name.
   53:  * port[in]         - The port(when not Port 80).
   54:  * bearer[in]       - The bearer token.
   55:  * outptr[in / out] - The address where a pointer to newly allocated memory
   56:  *                    holding the result will be stored upon completion.
   57:  * outlen[out]      - The length of the output message.
   58:  *
   59:  * Returns CURLE_OK on success.
   60:  */
   61: CURLcode Curl_auth_create_oauth_bearer_message(struct Curl_easy *data,
   62:                                                const char *user,
   63:                                                const char *host,
   64:                                                const long port,
   65:                                                const char *bearer,
   66:                                                char **outptr, size_t *outlen)
   67: {
   68:   CURLcode result = CURLE_OK;
   69:   char *oauth = NULL;
   70: 
   71:   /* Generate the message */
   72:   if(port == 0 || port == 80)
   73:     oauth = aprintf("n,a=%s,\1host=%s\1auth=Bearer %s\1\1", user, host,
   74:                     bearer);
   75:   else
   76:     oauth = aprintf("n,a=%s,\1host=%s\1port=%ld\1auth=Bearer %s\1\1", user,
   77:                     host, port, bearer);
   78:   if(!oauth)
   79:     return CURLE_OUT_OF_MEMORY;
   80: 
   81:   /* Base64 encode the reply */
   82:   result = Curl_base64_encode(data, oauth, strlen(oauth), outptr, outlen);
   83: 
   84:   free(oauth);
   85: 
   86:   return result;
   87: }
   88: 
   89: /*
   90:  * Curl_auth_create_xoauth_bearer_message()
   91:  *
   92:  * This is used to generate an already encoded XOAuth 2.0 message ready for
   93:  * sending to the recipient.
   94:  *
   95:  * Parameters:
   96:  *
   97:  * data[in]         - The session handle.
   98:  * user[in]         - The user name.
   99:  * bearer[in]       - The bearer token.
  100:  * outptr[in / out] - The address where a pointer to newly allocated memory
  101:  *                    holding the result will be stored upon completion.
  102:  * outlen[out]      - The length of the output message.
  103:  *
  104:  * Returns CURLE_OK on success.
  105:  */
  106: CURLcode Curl_auth_create_xoauth_bearer_message(struct Curl_easy *data,
  107:                                                const char *user,
  108:                                                const char *bearer,
  109:                                                char **outptr, size_t *outlen)
  110: {
  111:   CURLcode result = CURLE_OK;
  112: 
  113:   /* Generate the message */
  114:   char *xoauth = aprintf("user=%s\1auth=Bearer %s\1\1", user, bearer);
  115:   if(!xoauth)
  116:     return CURLE_OUT_OF_MEMORY;
  117: 
  118:   /* Base64 encode the reply */
  119:   result = Curl_base64_encode(data, xoauth, strlen(xoauth), outptr, outlen);
  120: 
  121:   free(xoauth);
  122: 
  123:   return result;
  124: }
  125: #endif /* disabled, no users */
  126: