137 lines
4.0 KiB
C
137 lines
4.0 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* RFC4616 PLAIN authentication
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* Draft LOGIN SASL Mechanism <draft-murchison-sasl-login-00.txt>
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*
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***************************************************************************/
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#include "curl_setup.h"
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#if !defined(CURL_DISABLE_IMAP) || !defined(CURL_DISABLE_SMTP) || \
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!defined(CURL_DISABLE_POP3)
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#include <curl/curl.h>
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#include "urldata.h"
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#include "vauth/vauth.h"
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#include "curl_md5.h"
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#include "warnless.h"
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#include "strtok.h"
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#include "sendf.h"
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#include "curl_printf.h"
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/* The last #include files should be: */
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#include "curl_memory.h"
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#include "memdebug.h"
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/*
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* Curl_auth_create_plain_message()
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*
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* This is used to generate an already encoded PLAIN message ready
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* for sending to the recipient.
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*
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* Parameters:
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*
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* authzid [in] - The authorization identity.
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* authcid [in] - The authentication identity.
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* passwd [in] - The password.
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* out [out] - The result storage.
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*
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* Returns CURLE_OK on success.
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*/
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CURLcode Curl_auth_create_plain_message(const char *authzid,
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const char *authcid,
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const char *passwd,
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struct bufref *out)
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{
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char *plainauth;
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size_t plainlen;
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size_t zlen;
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size_t clen;
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size_t plen;
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zlen = (authzid == NULL ? 0 : strlen(authzid));
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clen = strlen(authcid);
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plen = strlen(passwd);
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/* Compute binary message length. Check for overflows. */
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if((zlen > SIZE_T_MAX/4) || (clen > SIZE_T_MAX/4) ||
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(plen > (SIZE_T_MAX/2 - 2)))
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return CURLE_OUT_OF_MEMORY;
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plainlen = zlen + clen + plen + 2;
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plainauth = malloc(plainlen + 1);
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if(!plainauth)
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return CURLE_OUT_OF_MEMORY;
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/* Calculate the reply */
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if(zlen)
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memcpy(plainauth, authzid, zlen);
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plainauth[zlen] = '\0';
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memcpy(plainauth + zlen + 1, authcid, clen);
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plainauth[zlen + clen + 1] = '\0';
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memcpy(plainauth + zlen + clen + 2, passwd, plen);
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plainauth[plainlen] = '\0';
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Curl_bufref_set(out, plainauth, plainlen, curl_free);
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return CURLE_OK;
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}
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/*
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* Curl_auth_create_login_message()
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*
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* This is used to generate an already encoded LOGIN message containing the
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* user name or password ready for sending to the recipient.
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*
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* Parameters:
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*
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* valuep [in] - The user name or user's password.
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* out [out] - The result storage.
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*
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* Returns CURLE_OK on success.
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*/
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CURLcode Curl_auth_create_login_message(const char *valuep, struct bufref *out)
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{
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Curl_bufref_set(out, valuep, strlen(valuep), NULL);
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return CURLE_OK;
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}
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/*
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* Curl_auth_create_external_message()
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*
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* This is used to generate an already encoded EXTERNAL message containing
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* the user name ready for sending to the recipient.
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*
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* Parameters:
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*
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* user [in] - The user name.
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* out [out] - The result storage.
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*
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* Returns CURLE_OK on success.
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*/
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CURLcode Curl_auth_create_external_message(const char *user,
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struct bufref *out)
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{
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/* This is the same formatting as the login message */
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return Curl_auth_create_login_message(user, out);
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}
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#endif /* if no users */
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