* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2015, 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
* RFC3501 IMAPv4 protocol
* RFC4422 Simple Authentication and Security Layer (SASL)
* RFC4616 PLAIN authentication
+ * RFC4752 The Kerberos V5 ("GSSAPI") SASL Mechanism
* RFC4959 IMAP Extension for SASL Initial Client Response
* RFC5092 IMAP URL Scheme
* RFC6749 OAuth 2.0 Authorization Framework
#include <curl/curl.h>
#include "urldata.h"
#include "sendf.h"
-#include "if2ip.h"
#include "hostip.h"
#include "progress.h"
#include "transfer.h"
"AUTHENTICATE_DIGESTMD5_RESP",
"AUTHENTICATE_NTLM",
"AUTHENTICATE_NTLM_TYPE2MSG",
+ "AUTHENTICATE_GSSAPI",
+ "AUTHENTICATE_GSSAPI_TOKEN",
+ "AUTHENTICATE_GSSAPI_NO_DATA",
"AUTHENTICATE_XOAUTH2",
"AUTHENTICATE_CANCEL",
"AUTHENTICATE_FINAL",
if(mech && (imapc->preftype & IMAP_TYPE_SASL)) {
/* Perform SASL based authentication */
result = imap_perform_authenticate(conn, mech, initresp, state1, state2);
-
- Curl_safefree(initresp);
}
else if((!imapc->login_disabled) &&
(imapc->preftype & IMAP_TYPE_CLEARTEXT))
}
}
+ Curl_safefree(initresp);
+
return result;
}
}
#endif
+#if defined(USE_KERBEROS5)
+/* For AUTHENTICATE GSSAPI (without initial response) responses */
+static CURLcode imap_state_auth_gssapi_resp(struct connectdata *conn,
+ int imapcode,
+ imapstate instate)
+{
+ CURLcode result = CURLE_OK;
+ struct SessionHandle *data = conn->data;
+ struct imap_conn *imapc = &conn->proto.imapc;
+ size_t len = 0;
+ char *respmsg = NULL;
+
+ (void)instate; /* no use for this yet */
+
+ if(imapcode != '+') {
+ failf(data, "Access denied: %d", imapcode);
+ result = CURLE_LOGIN_DENIED;
+ }
+ else {
+ /* Create the initial response message */
+ result = Curl_sasl_create_gssapi_user_message(data, conn->user,
+ conn->passwd, "imap",
+ imapc->mutual_auth,
+ NULL, &conn->krb5,
+ &respmsg, &len);
+ if(!result && respmsg) {
+ /* Send the message */
+ result = Curl_pp_sendf(&imapc->pp, "%s", respmsg);
+
+ if(!result)
+ state(conn, IMAP_AUTHENTICATE_GSSAPI_TOKEN);
+ }
+ }
+
+ Curl_safefree(respmsg);
+
+ return result;
+}
+
+/* For AUTHENTICATE GSSAPI user token responses */
+static CURLcode imap_state_auth_gssapi_token_resp(struct connectdata *conn,
+ int imapcode,
+ imapstate instate)
+{
+ CURLcode result = CURLE_OK;
+ struct SessionHandle *data = conn->data;
+ struct imap_conn *imapc = &conn->proto.imapc;
+ char *chlgmsg = NULL;
+ char *respmsg = NULL;
+ size_t len = 0;
+
+ (void)instate; /* no use for this yet */
+
+ if(imapcode != '+') {
+ failf(data, "Access denied: %d", imapcode);
+ result = CURLE_LOGIN_DENIED;
+ }
+ else {
+ /* Get the challenge message */
+ imap_get_message(data->state.buffer, &chlgmsg);
+
+ if(imapc->mutual_auth)
+ /* Decode the user token challenge and create the optional response
+ message */
+ result = Curl_sasl_create_gssapi_user_message(data, NULL, NULL, NULL,
+ imapc->mutual_auth,
+ chlgmsg, &conn->krb5,
+ &respmsg, &len);
+ else
+ /* Decode the security challenge and create the response message */
+ result = Curl_sasl_create_gssapi_security_message(data, chlgmsg,
+ &conn->krb5,
+ &respmsg, &len);
+
+ if(result) {
+ if(result == CURLE_BAD_CONTENT_ENCODING) {
+ /* Send the cancellation */
+ result = Curl_pp_sendf(&imapc->pp, "%s", "*");
+
+ if(!result)
+ state(conn, IMAP_AUTHENTICATE_CANCEL);
+ }
+ }
+ else {
+ /* Send the response */
+ if(respmsg)
+ result = Curl_pp_sendf(&imapc->pp, "%s", respmsg);
+ else
+ result = Curl_pp_sendf(&imapc->pp, "%s", "");
+
+ if(!result)
+ state(conn, (imapc->mutual_auth ? IMAP_AUTHENTICATE_GSSAPI_NO_DATA :
+ IMAP_AUTHENTICATE_FINAL));
+ }
+ }
+
+ Curl_safefree(respmsg);
+
+ return result;
+}
+
+/* For AUTHENTICATE GSSAPI no data responses */
+static CURLcode imap_state_auth_gssapi_no_data_resp(struct connectdata *conn,
+ int imapcode,
+ imapstate instate)
+{
+ CURLcode result = CURLE_OK;
+ struct SessionHandle *data = conn->data;
+ char *chlgmsg = NULL;
+ char *respmsg = NULL;
+ size_t len = 0;
+
+ (void)instate; /* no use for this yet */
+
+ if(imapcode != '+') {
+ failf(data, "Access denied: %d", imapcode);
+ result = CURLE_LOGIN_DENIED;
+ }
+ else {
+ /* Get the challenge message */
+ imap_get_message(data->state.buffer, &chlgmsg);
+
+ /* Decode the security challenge and create the response message */
+ result = Curl_sasl_create_gssapi_security_message(data, chlgmsg,
+ &conn->krb5,
+ &respmsg, &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_CANCEL);
+ }
+ }
+ else {
+ /* Send the response */
+ if(respmsg) {
+ result = Curl_pp_sendf(&conn->proto.imapc.pp, "%s", respmsg);
+
+ if(!result)
+ state(conn, IMAP_AUTHENTICATE_FINAL);
+ }
+ }
+ }
+
+ Curl_safefree(respmsg);
+
+ return result;
+}
+#endif
+
/* For AUTHENTICATE XOAUTH2 (without initial response) responses */
static CURLcode imap_state_auth_xoauth2_resp(struct connectdata *conn,
int imapcode,
(void)instate; /* no use for this yet */
if(imapcode != '*') {
- Curl_pgrsSetDownloadSize(data, 0);
+ Curl_pgrsSetDownloadSize(data, -1);
state(conn, IMAP_STOP);
return CURLE_REMOTE_FILE_NOT_FOUND; /* TODO: Fix error code */
}
break;
#endif
+#if defined(USE_KERBEROS5)
+ case IMAP_AUTHENTICATE_GSSAPI:
+ result = imap_state_auth_gssapi_resp(conn, imapcode, imapc->state);
+ break;
+
+ case IMAP_AUTHENTICATE_GSSAPI_TOKEN:
+ result = imap_state_auth_gssapi_token_resp(conn, imapcode, imapc->state);
+ break;
+
+ case IMAP_AUTHENTICATE_GSSAPI_NO_DATA:
+ result = imap_state_auth_gssapi_no_data_resp(conn, imapcode,
+ imapc->state);
+ break;
+#endif
+
case IMAP_AUTHENTICATE_XOAUTH2:
result = imap_state_auth_xoauth2_resp(conn, imapcode, imapc->state);
break;
/* Set the progress data */
Curl_pgrsSetUploadCounter(data, 0);
Curl_pgrsSetDownloadCounter(data, 0);
- Curl_pgrsSetUploadSize(data, 0);
- Curl_pgrsSetDownloadSize(data, 0);
+ Curl_pgrsSetUploadSize(data, -1);
+ Curl_pgrsSetDownloadSize(data, -1);
/* Carry out the perform */
result = imap_perform(conn, &connected, dophase_done);
if(!str)
return NULL;
- /* Count any unescapped characters */
+ /* Count any unescaped characters */
p1 = str;
while(*p1) {
if(*p1 == '\\')
p1++;
}
- /* Does the input contain any unescapped characters? */
+ /* Does the input contain any unescaped characters? */
if(!backsp_count && !quote_count && !space_exists)
return strdup(str);
/* Calculate the supported authentication mechanism, by decreasing order of
security, as well as the initial response where appropriate */
+#if defined(USE_KERBEROS5)
+ if((imapc->authmechs & SASL_MECH_GSSAPI) &&
+ (imapc->prefmech & SASL_MECH_GSSAPI)) {
+ imapc->mutual_auth = FALSE; /* TODO: Calculate mutual authentication */
+
+ *mech = SASL_MECH_STRING_GSSAPI;
+ *state1 = IMAP_AUTHENTICATE_GSSAPI;
+ *state2 = IMAP_AUTHENTICATE_GSSAPI_TOKEN;
+ imapc->authused = SASL_MECH_GSSAPI;
+
+ if(imapc->ir_supported || data->set.sasl_ir)
+ result = Curl_sasl_create_gssapi_user_message(data, conn->user,
+ conn->passwd, "imap",
+ imapc->mutual_auth,
+ NULL, &conn->krb5,
+ initresp, len);
+ }
+ else
+#endif
#ifndef CURL_DISABLE_CRYPTO_AUTH
if((imapc->authmechs & SASL_MECH_DIGEST_MD5) &&
(imapc->prefmech & SASL_MECH_DIGEST_MD5)) {
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