207 lines
6.6 KiB
C
207 lines
6.6 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) 2012, 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 http://curl.haxx.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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*
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***************************************************************************/
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#include "setup.h"
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#include <curl/curl.h>
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#include "urldata.h"
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#include "curl_base64.h"
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#include "curl_ntlm_msgs.h"
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#include "curl_sasl.h"
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/* The last #include file should be: */
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#include "memdebug.h"
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/*
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* Curl_sasl_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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* data [in] - The session handle.
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* userp [in] - The user name.
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* passdwp [in] - The user's password.
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* outptr [in/out] - The address where a pointer to newly allocated memory
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* holding the result will be stored upon completion.
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* outlen [out] - The length of the output message.
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*
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* Returns CURLE_OK on success.
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*/
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CURLcode Curl_sasl_create_plain_message(struct SessionHandle *data,
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const char* userp,
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const char* passwdp,
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char **outptr, size_t *outlen)
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{
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char plainauth[2 * MAX_CURL_USER_LENGTH + MAX_CURL_PASSWORD_LENGTH];
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size_t ulen;
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size_t plen;
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ulen = strlen(userp);
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plen = strlen(passwdp);
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if(2 * ulen + plen + 2 > sizeof(plainauth)) {
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*outlen = 0;
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*outptr = NULL;
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return CURLE_OUT_OF_MEMORY; /* plainauth too small */
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}
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memcpy(plainauth, userp, ulen);
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plainauth[ulen] = '\0';
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memcpy(plainauth + ulen + 1, userp, ulen);
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plainauth[2 * ulen + 1] = '\0';
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memcpy(plainauth + 2 * ulen + 2, passwdp, plen);
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return Curl_base64_encode(data, plainauth, 2 * ulen + plen + 2, outptr,
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outlen);
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}
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/*
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* Curl_sasl_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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* data [in] - The session handle.
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* valuep [in] - The user name or user's password.
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* outptr [in/out] - The address where a pointer to newly allocated memory
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* holding the result will be stored upon completion.
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* outlen [out] - The length of the output message.
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*
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* Returns CURLE_OK on success.
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*/
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CURLcode Curl_sasl_create_login_message(struct SessionHandle *data,
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const char* valuep, char **outptr,
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size_t *outlen)
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{
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size_t vlen = strlen(valuep);
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if(!vlen) {
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*outptr = strdup("=");
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if(*outptr) {
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*outlen = (size_t) 1;
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return CURLE_OK;
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}
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*outlen = 0;
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return CURLE_OUT_OF_MEMORY;
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}
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return Curl_base64_encode(data, valuep, vlen, outptr, outlen);
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}
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#ifdef USE_NTLM
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/*
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* Curl_sasl_create_ntlm_type1_message()
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*
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* This is used to generate an already encoded NTLM type-1 message ready for
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* sending to the recipient.
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*
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* Note: This is a simple wrapper of the NTLM function which means that any
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* SASL based protocols don't have to include the NTLM functions directly.
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*
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* Parameters:
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*
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* userp [in] - The user name in the format User or Domain\User.
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* passdwp [in] - The user's password.
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* ntlm [in/out] - The ntlm data struct being used and modified.
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* outptr [in/out] - The address where a pointer to newly allocated memory
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* holding the result will be stored upon completion.
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* outlen [out] - The length of the output message.
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*
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* Returns CURLE_OK on success.
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*/
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CURLcode Curl_sasl_create_ntlm_type1_message(const char *userp,
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const char *passwdp,
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struct ntlmdata *ntlm,
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char **outptr, size_t *outlen)
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{
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return Curl_ntlm_create_type1_message(userp, passwdp, ntlm, outptr,
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outlen);
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}
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/*
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* Curl_sasl_decode_ntlm_type2_message()
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*
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* This is used to decode a ntlm type-2 message received from a recipient and
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* generate the already encoded NTLM type-3 message ready for sending back.
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*
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* Parameters:
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*
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* data [in] - Pointer to session handle.
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* header [in] - Pointer to the input buffer.
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* userp [in] - The user name in the format User or Domain\User.
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* passdwp [in] - The user's password.
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* ntlm [in/out] - The ntlm data struct being used and modified.
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* outptr [in/out] - The address where a pointer to newly allocated memory
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* holding the result will be stored upon completion.
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* outlen [out] - The length of the output message.
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*
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* Returns CURLE_OK on success.
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*/
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CURLcode Curl_sasl_decode_ntlm_type2_message(struct SessionHandle *data,
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const char *header,
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const char *userp,
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const char *passwdp,
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struct ntlmdata *ntlm,
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char **outptr, size_t *outlen)
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{
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CURLcode result = Curl_ntlm_decode_type2_message(data, header, ntlm);
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if(!result)
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result = Curl_ntlm_create_type3_message(data, userp, passwdp, ntlm,
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outptr, outlen);
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return result;
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}
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#endif /* USE_NTLM */
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/*
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* Curl_sasl_cleanup()
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*
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* This is used to cleanup any libraries or curl modules used by the sasl
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* functions.
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*
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* Parameters:
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*
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* conn [in] - Pointer to the connection data.
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* authused [in] - The authentication mechanism used.
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*/
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void Curl_sasl_cleanup(struct connectdata *conn, unsigned int authused)
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{
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#ifdef USE_NTLM
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/* Cleanup the ntlm structure */
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if(authused == SASL_AUTH_NTLM) {
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Curl_ntlm_sspi_cleanup(&conn->ntlm);
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}
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#else
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/* Reserved for future use */
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(void)conn;
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(void)authused;
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#endif
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} |