-/* For AUTH PLAIN (without initial response) responses */
-static CURLcode pop3_state_auth_plain_resp(struct connectdata *conn,
- int pop3code,
- pop3state instate)
-{
- CURLcode result = CURLE_OK;
- struct SessionHandle *data = conn->data;
- size_t len = 0;
- char *plainauth = NULL;
-
- (void)instate; /* no use for this yet */
-
- if(pop3code != '+') {
- failf(data, "Access denied. %c", pop3code);
- result = CURLE_LOGIN_DENIED;
- }
- else {
- /* Create the authorisation message */
- result = Curl_sasl_create_plain_message(data, conn->user, conn->passwd,
- &plainauth, &len);
- if(!result && plainauth) {
- /* Send the message */
- result = Curl_pp_sendf(&conn->proto.pop3c.pp, "%s", plainauth);
-
- if(!result)
- state(conn, POP3_AUTH_FINAL);
- }
- }
-
- Curl_safefree(plainauth);
-
- return result;
-}
-
-/* For AUTH LOGIN (without initial response) responses */
-static CURLcode pop3_state_auth_login_resp(struct connectdata *conn,
- int pop3code,
- pop3state instate)
-{
- CURLcode result = CURLE_OK;
- struct SessionHandle *data = conn->data;
- size_t len = 0;
- char *authuser = NULL;
-
- (void)instate; /* no use for this yet */
-
- if(pop3code != '+') {
- failf(data, "Access denied: %d", pop3code);
- result = CURLE_LOGIN_DENIED;
- }
- else {
- /* Create the user message */
- result = Curl_sasl_create_login_message(data, conn->user,
- &authuser, &len);
- if(!result && authuser) {
- /* Send the user */
- result = Curl_pp_sendf(&conn->proto.pop3c.pp, "%s", authuser);
-
- if(!result)
- state(conn, POP3_AUTH_LOGIN_PASSWD);
- }
- }
-
- Curl_safefree(authuser);
-
- return result;
-}
-
-/* For AUTH LOGIN user entry responses */
-static CURLcode pop3_state_auth_login_password_resp(struct connectdata *conn,
- int pop3code,
- pop3state instate)
-{
- CURLcode result = CURLE_OK;
- struct SessionHandle *data = conn->data;
- size_t len = 0;
- char *authpasswd = NULL;
-
- (void)instate; /* no use for this yet */
-
- if(pop3code != '+') {
- failf(data, "Access denied: %d", pop3code);
- result = CURLE_LOGIN_DENIED;
- }
- else {
- /* Create the password message */
- result = Curl_sasl_create_login_message(data, conn->passwd,
- &authpasswd, &len);
- if(!result && authpasswd) {
- /* Send the password */
- result = Curl_pp_sendf(&conn->proto.pop3c.pp, "%s", authpasswd);
-
- if(!result)
- state(conn, POP3_AUTH_FINAL);
- }
- }
-
- Curl_safefree(authpasswd);
-
- return result;
-}
-
-#ifndef CURL_DISABLE_CRYPTO_AUTH
-/* For AUTH CRAM-MD5 responses */
-static CURLcode pop3_state_auth_cram_resp(struct connectdata *conn,
- int pop3code,
- pop3state instate)
-{
- CURLcode result = CURLE_OK;
- struct SessionHandle *data = conn->data;
- char *chlg = NULL;
- char *chlg64 = NULL;
- char *rplyb64 = NULL;
- size_t len = 0;
-
- (void)instate; /* no use for this yet */
-
- if(pop3code != '+') {
- failf(data, "Access denied: %d", pop3code);
- return CURLE_LOGIN_DENIED;
- }
-
- /* Get the challenge message */
- pop3_get_message(data->state.buffer, &chlg64);
-
- /* Decode the challenge message */
- result = Curl_sasl_decode_cram_md5_message(chlg64, &chlg, &len);
- if(result) {
- /* 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_cram_md5_message(data, chlg, conn->user,
- conn->passwd, &rplyb64, &len);
- if(!result && rplyb64) {
- /* Send the response */
- result = Curl_pp_sendf(&conn->proto.pop3c.pp, "%s", rplyb64);
-
- if(!result)
- state(conn, POP3_AUTH_FINAL);
- }
- }
-
- Curl_safefree(chlg);
- Curl_safefree(rplyb64);
-
- return result;
-}
-
-/* For AUTH DIGEST-MD5 challenge responses */
-static CURLcode pop3_state_auth_digest_resp(struct connectdata *conn,
- int pop3code,
- pop3state instate)
-{
- CURLcode result = CURLE_OK;
- struct SessionHandle *data = conn->data;
- char *chlg64 = NULL;
- char *rplyb64 = NULL;
- size_t len = 0;
-
- (void)instate; /* no use for this yet */
-
- if(pop3code != '+') {
- failf(data, "Access denied: %d", pop3code);
- return CURLE_LOGIN_DENIED;
- }
-
- /* Get the challenge message */
- pop3_get_message(data->state.buffer, &chlg64);
-
- /* 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_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);
-
- return result;
-}
-
-/* For AUTH DIGEST-MD5 challenge-response responses */
-static CURLcode pop3_state_auth_digest_resp_resp(struct connectdata *conn,
- int pop3code,
- pop3state instate)
-{
- CURLcode result = CURLE_OK;
- struct SessionHandle *data = conn->data;
-
- (void)instate; /* no use for this yet */
-
- if(pop3code != '+') {
- failf(data, "Authentication failed: %d", pop3code);
- result = CURLE_LOGIN_DENIED;
- }
- else {
- /* Send an empty response */
- result = Curl_pp_sendf(&conn->proto.pop3c.pp, "%s", "");
-
- if(!result)
- state(conn, POP3_AUTH_FINAL);
- }
-
- return result;
-}
-#endif
-
-#ifdef USE_NTLM
-/* For AUTH NTLM (without initial response) responses */
-static CURLcode pop3_state_auth_ntlm_resp(struct connectdata *conn,
- int pop3code,
- pop3state instate)
-{
- CURLcode result = CURLE_OK;
- struct SessionHandle *data = conn->data;
- size_t len = 0;
- char *type1msg = NULL;
-
- (void)instate; /* no use for this yet */
-
- if(pop3code != '+') {
- failf(data, "Access denied: %d", pop3code);
- result = CURLE_LOGIN_DENIED;
- }
- else {
- /* Create the type-1 message */
- result = Curl_sasl_create_ntlm_type1_message(conn->user, conn->passwd,
- &conn->ntlm,
- &type1msg, &len);
- if(!result && type1msg) {
- /* Send the message */
- result = Curl_pp_sendf(&conn->proto.pop3c.pp, "%s", type1msg);
-
- if(!result)
- state(conn, POP3_AUTH_NTLM_TYPE2MSG);
- }
- }
-
- Curl_safefree(type1msg);
-
- return result;
-}
-
-/* For NTLM type-2 responses (sent in reponse to our type-1 message) */
-static CURLcode pop3_state_auth_ntlm_type2msg_resp(struct connectdata *conn,
- int pop3code,
- pop3state instate)
-{
- CURLcode result = CURLE_OK;
- struct SessionHandle *data = conn->data;
- char *type2msg = NULL;
- char *type3msg = NULL;
- size_t len = 0;
-
- (void)instate; /* no use for this yet */
-
- if(pop3code != '+') {
- failf(data, "Access denied: %d", pop3code);
- result = CURLE_LOGIN_DENIED;
- }
- else {
- /* Get the type-2 message */
- pop3_get_message(data->state.buffer, &type2msg);
-
- /* Decode the type-2 message */
- result = Curl_sasl_decode_ntlm_type2_message(data, type2msg, &conn->ntlm);
- if(result) {
- /* Send the cancellation */
- result = Curl_pp_sendf(&conn->proto.pop3c.pp, "%s", "*");
-
- if(!result)
- state(conn, POP3_AUTH_CANCEL);
- }
- else {
- /* Create the type-3 message */
- result = Curl_sasl_create_ntlm_type3_message(data, conn->user,
- conn->passwd, &conn->ntlm,
- &type3msg, &len);
- if(!result && type3msg) {
- /* Send the message */
- result = Curl_pp_sendf(&conn->proto.pop3c.pp, "%s", type3msg);
-
- if(!result)
- state(conn, POP3_AUTH_FINAL);
- }
- }
- }
-
- Curl_safefree(type3msg);
-
- return result;
-}
-#endif
-
-#if defined(USE_KERBEROS5)
-/* For AUTH GSSAPI (without initial response) responses */
-static CURLcode pop3_state_auth_gssapi_resp(struct connectdata *conn,
- int pop3code,
- pop3state instate)
-{
- CURLcode result = CURLE_OK;
- struct SessionHandle *data = conn->data;
- struct pop3_conn *pop3c = &conn->proto.pop3c;
- size_t len = 0;
- char *respmsg = NULL;
-
- (void)instate; /* no use for this yet */
-
- if(pop3code != '+') {
- failf(data, "Access denied: %d", pop3code);
- result = CURLE_LOGIN_DENIED;
- }
- else {
- /* Create the initial response message */
- result = Curl_sasl_create_gssapi_user_message(data, conn->user,
- conn->passwd, "pop",
- pop3c->mutual_auth,
- NULL, &conn->krb5,
- &respmsg, &len);
- if(!result && respmsg) {
- /* Send the message */
- result = Curl_pp_sendf(&pop3c->pp, "%s", respmsg);
-
- if(!result)
- state(conn, POP3_AUTH_GSSAPI_TOKEN);
- }
- }
-
- Curl_safefree(respmsg);
-
- return result;
-}
-
-/* For AUTH GSSAPI user token responses */
-static CURLcode pop3_state_auth_gssapi_token_resp(struct connectdata *conn,
- int pop3code,
- pop3state instate)
-{
- CURLcode result = CURLE_OK;
- struct SessionHandle *data = conn->data;
- struct pop3_conn *pop3c = &conn->proto.pop3c;
- char *chlgmsg = NULL;
- char *respmsg = NULL;
- size_t len = 0;
-
- (void)instate; /* no use for this yet */
-
- if(pop3code != '+') {
- failf(data, "Access denied: %d", pop3code);
- result = CURLE_LOGIN_DENIED;
- }
- else {
- /* Get the challenge message */
- pop3_get_message(data->state.buffer, &chlgmsg);
-
- if(pop3c->mutual_auth)
- /* Decode the user token challenge and create the optional response
- message */
- result = Curl_sasl_create_gssapi_user_message(data, NULL, NULL, NULL,
- pop3c->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(&pop3c->pp, "%s", "*");
-
- if(!result)
- state(conn, POP3_AUTH_CANCEL);
- }
- }
- else {
- /* Send the response */
- if(respmsg)
- result = Curl_pp_sendf(&pop3c->pp, "%s", respmsg);
- else
- result = Curl_pp_sendf(&pop3c->pp, "%s", "");
-
- if(!result)
- state(conn, (pop3c->mutual_auth ? POP3_AUTH_GSSAPI_NO_DATA :
- POP3_AUTH_FINAL));
- }
- }
-
- Curl_safefree(respmsg);
-
- return result;
-}
-
-/* For AUTH GSSAPI no data responses */
-static CURLcode pop3_state_auth_gssapi_no_data_resp(struct connectdata *conn,
- int pop3code,
- pop3state 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(pop3code != '+') {
- failf(data, "Access denied: %d", pop3code);
- result = CURLE_LOGIN_DENIED;
- }
- else {
- /* Get the challenge message */
- pop3_get_message(data->state.buffer, &chlgmsg);
-
- /* Decode the security challenge and create the security 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.pop3c.pp, "%s", "*");
-
- if(!result)
- state(conn, POP3_AUTH_CANCEL);
- }
- }
- else {
- /* Send the response */
- if(respmsg) {
- result = Curl_pp_sendf(&conn->proto.pop3c.pp, "%s", respmsg);
-
- if(!result)
- state(conn, POP3_AUTH_FINAL);
- }
- }
- }
-
- Curl_safefree(respmsg);
-
- return result;
-}
-#endif
-
-/* For AUTH XOAUTH2 (without initial response) responses */
-static CURLcode pop3_state_auth_xoauth2_resp(struct connectdata *conn,
- int pop3code, pop3state instate)
-{
- CURLcode result = CURLE_OK;
- struct SessionHandle *data = conn->data;
- size_t len = 0;
- char *xoauth = NULL;
-
- (void)instate; /* no use for this yet */
-
- if(pop3code != '+') {
- failf(data, "Access denied: %d", pop3code);
- result = CURLE_LOGIN_DENIED;
- }
- else {
- /* Create the authorisation message */
- result = Curl_sasl_create_xoauth2_message(conn->data, conn->user,
- conn->xoauth2_bearer,
- &xoauth, &len);
- if(!result && xoauth) {
- /* Send the message */
- result = Curl_pp_sendf(&conn->proto.pop3c.pp, "%s", xoauth);
-
- if(!result)
- state(conn, POP3_AUTH_FINAL);
- }
- }
-
- Curl_safefree(xoauth);
-
- return result;
-}
-
-/* For AUTH cancellation responses */
-static CURLcode pop3_state_auth_cancel_resp(struct connectdata *conn,
- int pop3code,
- pop3state instate)