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email: Added support for cancelling DIGEST-MD5 authentication

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This commit is contained in:
Steve Holme
2013-10-27 16:27:38 +00:00
parent e7a2ba41e3
commit b87ba2c942
5 changed files with 144 additions and 70 deletions
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32
lib/imap.c
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@@ -1160,6 +1160,10 @@ 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 != '+') {
@@ -1170,23 +1174,33 @@ static CURLcode imap_state_auth_digest_resp(struct connectdata *conn,
/* Get the challenge message */
imap_get_message(data->state.buffer, &chlg64);
/* Create the response message */
result = Curl_sasl_create_digest_md5_message(data, chlg64, conn->user,
conn->passwd, "imap",
&rplyb64, &len);
/* 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", "*");
/* Send the response */
if(!result) {
if(rplyb64) {
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);
if(!result)
state(conn, IMAP_AUTHENTICATE_DIGESTMD5_RESP);
}
Curl_safefree(rplyb64);
}
Curl_safefree(rplyb64);
return result;
}