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curl
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sasl: Combined DIGEST-MD5 message decoding and generation

This commit is contained in:
Steve Holme 2014-04-02 20:53:43 +01:00
Родитель 45d3f00803
Коммит 3a92de5636
5 изменённых файлов: 76 добавлений и 94 удалений
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33
lib/curl_sasl.c
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@ -264,9 +264,10 @@ CURLcode Curl_sasl_create_cram_md5_message(struct SessionHandle *data,
}
/*
* Curl_sasl_decode_digest_md5_message()
* sasl_decode_digest_md5_message()
*
* This is used to decode an already encoded DIGEST-MD5 challenge message.
* This is used internally to decode an already encoded DIGEST-MD5 challenge
* message into the seperate attributes.
*
* Parameters:
*
@ -280,10 +281,10 @@ CURLcode Curl_sasl_create_cram_md5_message(struct SessionHandle *data,
*
* Returns CURLE_OK on success.
*/
CURLcode Curl_sasl_decode_digest_md5_message(const char *chlg64,
char *nonce, size_t nlen,
char *realm, size_t rlen,
char *alg, size_t alen)
static CURLcode sasl_decode_digest_md5_message(const char *chlg64,
char *nonce, size_t nlen,
char *realm, size_t rlen,
char *alg, size_t alen)
{
CURLcode result = CURLE_OK;
unsigned char *chlg = NULL;
@ -332,8 +333,7 @@ CURLcode Curl_sasl_decode_digest_md5_message(const char *chlg64,
* Parameters:
*
* data [in] - The session handle.
* nonce [in] - The nonce.
* realm [in] - The realm.
* chlg64 [in] - Pointer to the base64 encoded challenge message.
* userp [in] - The user name.
* passdwp [in] - The user's password.
* service [in] - The service type such as www, smtp, pop or imap.
@ -344,8 +344,7 @@ CURLcode Curl_sasl_decode_digest_md5_message(const char *chlg64,
* Returns CURLE_OK on success.
*/
CURLcode Curl_sasl_create_digest_md5_message(struct SessionHandle *data,
const char *nonce,
const char *realm,
const char *chlg64,
const char *userp,
const char *passwdp,
const char *service,
@ -363,12 +362,26 @@ CURLcode Curl_sasl_create_digest_md5_message(struct SessionHandle *data,
char HA2_hex[2 * MD5_DIGEST_LEN + 1];
char resp_hash_hex[2 * MD5_DIGEST_LEN + 1];
char nonce[64];
char realm[128];
char algorithm[64];
char nonceCount[] = "00000001";
char cnonce[] = "12345678"; /* will be changed */
char method[] = "AUTHENTICATE";
char qop[] = "auth";
char uri[128];
/* Decode the challange message */
result = sasl_decode_digest_md5_message(chlg64, nonce, sizeof(nonce),
realm, sizeof(realm),
algorithm, sizeof(algorithm));
if(result)
return result;
/* We only support md5 sessions */
if(strcmp(algorithm, "md5-sess") != 0)
return CURLE_BAD_CONTENT_ENCODING;
#ifndef DEBUGBUILD
/* Generate 64 bits of random data */
for(i = 0; i < 8; i++)

13
lib/curl_sasl.h
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@ -7,7 +7,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2012 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 2012 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@ -77,17 +77,10 @@ CURLcode Curl_sasl_create_cram_md5_message(struct SessionHandle *data,
const char *passwdp,
char **outptr, size_t *outlen);
/* This is used to decode a base64 encoded DIGEST-MD5 challange message */
CURLcode Curl_sasl_decode_digest_md5_message(const char *chlg64,
char *nonce, size_t nlen,
char *realm, size_t rlen,
char *alg, size_t alen);
/* This is used to generate a base64 encoded DIGEST-MD5 response message */
CURLcode Curl_sasl_create_digest_md5_message(struct SessionHandle *data,
const char *nonce,
const char *realm,
const char *user,
const char *chlg64,
const char *userp,
const char *passwdp,
const char *service,
char **outptr, size_t *outlen);

42
lib/imap.c
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@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@ -1110,10 +1110,6 @@ static CURLcode imap_state_auth_digest_resp(struct connectdata *conn,
char *rplyb64 = NULL;
size_t len = 0;
char nonce[64];
char realm[128];
char algorithm[64];
(void)instate; /* no use for this yet */
if(imapcode != '+') {
@ -1124,30 +1120,26 @@ static CURLcode imap_state_auth_digest_resp(struct connectdata *conn,
/* Get the challenge message */
imap_get_message(data->state.buffer, &chlg64);
/* Decode the challange message */
result = Curl_sasl_decode_digest_md5_message(chlg64, nonce, sizeof(nonce),
realm, sizeof(realm),
algorithm, sizeof(algorithm));
if(result || strcmp(algorithm, "md5-sess") != 0) {
/* Send the cancellation */
result = Curl_pp_sendf(&conn->proto.imapc.pp, "%s", "*");
if(!result)
state(conn, IMAP_AUTHENTICATE_CANCEL);
}
else {
/* Create the response message */
result = Curl_sasl_create_digest_md5_message(data, nonce, realm,
conn->user, conn->passwd,
"imap", &rplyb64, &len);
if(!result && rplyb64) {
/* Send the response */
result = Curl_pp_sendf(&conn->proto.imapc.pp, "%s", rplyb64);
/* Create the response message */
result = Curl_sasl_create_digest_md5_message(data, chlg64,
conn->user, conn->passwd,
"imap", &rplyb64, &len);
if(result) {
if(result == CURLE_BAD_CONTENT_ENCODING) {
/* Send the cancellation */
result = Curl_pp_sendf(&conn->proto.imapc.pp, "%s", "*");
if(!result)
state(conn, IMAP_AUTHENTICATE_DIGESTMD5_RESP);
state(conn, IMAP_AUTHENTICATE_CANCEL);
}
}
else {
/* Send the response */
result = Curl_pp_sendf(&conn->proto.imapc.pp, "%s", rplyb64);
if(!result)
state(conn, IMAP_AUTHENTICATE_DIGESTMD5_RESP);
}
Curl_safefree(rplyb64);

42
lib/pop3.c
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@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@ -978,10 +978,6 @@ static CURLcode pop3_state_auth_digest_resp(struct connectdata *conn,
char *rplyb64 = NULL;
size_t len = 0;
char nonce[64];
char realm[128];
char algorithm[64];
(void)instate; /* no use for this yet */
if(pop3code != '+') {
@ -992,30 +988,26 @@ static CURLcode pop3_state_auth_digest_resp(struct connectdata *conn,
/* Get the challenge message */
pop3_get_message(data->state.buffer, &chlg64);
/* Decode the challange message */
result = Curl_sasl_decode_digest_md5_message(chlg64, nonce, sizeof(nonce),
realm, sizeof(realm),
algorithm, sizeof(algorithm));
if(result || strcmp(algorithm, "md5-sess") != 0) {
/* Send the cancellation */
result = Curl_pp_sendf(&conn->proto.pop3c.pp, "%s", "*");
if(!result)
state(conn, POP3_AUTH_CANCEL);
}
else {
/* Create the response message */
result = Curl_sasl_create_digest_md5_message(data, nonce, realm,
conn->user, conn->passwd,
"pop", &rplyb64, &len);
if(!result && rplyb64) {
/* Send the response */
result = Curl_pp_sendf(&conn->proto.pop3c.pp, "%s", rplyb64);
/* Create the response message */
result = Curl_sasl_create_digest_md5_message(data, chlg64,
conn->user, conn->passwd,
"pop", &rplyb64, &len);
if(result) {
if(result == CURLE_BAD_CONTENT_ENCODING) {
/* Send the cancellation */
result = Curl_pp_sendf(&conn->proto.pop3c.pp, "%s", "*");
if(!result)
state(conn, POP3_AUTH_DIGESTMD5_RESP);
state(conn, POP3_AUTH_CANCEL);
}
}
else {
/* Send the response */
result = Curl_pp_sendf(&conn->proto.pop3c.pp, "%s", rplyb64);
if(!result)
state(conn, POP3_AUTH_DIGESTMD5_RESP);
}
Curl_safefree(rplyb64);

40
lib/smtp.c
Просмотреть файл

@ -996,10 +996,6 @@ static CURLcode smtp_state_auth_digest_resp(struct connectdata *conn,
char *rplyb64 = NULL;
size_t len = 0;
char nonce[64];
char realm[128];
char algorithm[64];
(void)instate; /* no use for this yet */
if(smtpcode != 334) {
@ -1010,30 +1006,26 @@ static CURLcode smtp_state_auth_digest_resp(struct connectdata *conn,
/* Get the challenge message */
smtp_get_message(data->state.buffer, &chlg64);
/* Decode the challange message */
result = Curl_sasl_decode_digest_md5_message(chlg64, nonce, sizeof(nonce),
realm, sizeof(realm),
algorithm, sizeof(algorithm));
if(result || strcmp(algorithm, "md5-sess") != 0) {
/* Send the cancellation */
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", "*");
if(!result)
state(conn, SMTP_AUTH_CANCEL);
}
else {
/* Create the response message */
result = Curl_sasl_create_digest_md5_message(data, nonce, realm,
conn->user, conn->passwd,
"smtp", &rplyb64, &len);
if(!result && rplyb64) {
/* Send the response */
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", rplyb64);
/* Create the response message */
result = Curl_sasl_create_digest_md5_message(data, chlg64,
conn->user, conn->passwd,
"smtp", &rplyb64, &len);
if(result) {
if(result == CURLE_BAD_CONTENT_ENCODING) {
/* Send the cancellation */
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", "*");
if(!result)
state(conn, SMTP_AUTH_DIGESTMD5_RESP);
state(conn, SMTP_AUTH_CANCEL);
}
}
else {
/* Send the response */
result = Curl_pp_sendf(&conn->proto.smtpc.pp, "%s", rplyb64);
if(!result)
state(conn, SMTP_AUTH_DIGESTMD5_RESP);
}
Curl_safefree(rplyb64);