/* For STARTTLS responses */
static CURLcode imap_state_starttls_resp(struct connectdata *conn,
int imapcode,
imapstate instate)
{
CURLcode result = CURLE_OK;
struct SessionHandle *data = conn->data;
(void)instate; /* no use for this yet */
if(imapcode != 'O') {
if(data->set.use_ssl != CURLUSESSL_TRY) {
failf(data, "STARTTLS denied. %c", imapcode);
result = CURLE_USE_SSL_FAILED;
}
else
result = imap_state_login(conn);
}
else {
if(data->state.used_interface == Curl_if_multi) {
state(conn, IMAP_UPGRADETLS);
result = imap_state_upgrade_tls(conn);
}
else {
result = Curl_ssl_connect(conn, FIRSTSOCKET);
if(CURLE_OK == result) {
imap_to_imaps(conn);
result = imap_state_login(conn);
}
}
}
return result;
}
static CURLcode imap_statemach_act(struct connectdata *conn)
{
CURLcode result;
curl_socket_t sock = conn->sock[FIRSTSOCKET];
int imapcode;
struct imap_conn *imapc = &conn->proto.imapc;
struct pingpong *pp = &imapc->pp;
size_t nread = 0;
/* Busy upgrading the connection; right now all I/O is SSL/TLS, not IMAP */
if(imapc->state == IMAP_UPGRADETLS)
return imap_state_upgrade_tls(conn);
/* Flush any data that needs to be sent */
if(pp->sendleft)
return Curl_pp_flushsend(pp);
/* Read the response from the server */
result = Curl_pp_readresp(sock, pp, &imapcode, &nread);
if(result)
return result;
if(imapcode) {
/* We have now received a full IMAP server response */
switch(imapc->state) {
case IMAP_SERVERGREET:
result = imap_state_servergreet_resp(conn, imapcode, imapc->state);
break;
case IMAP_STARTTLS:
result = imap_state_starttls_resp(conn, imapcode, imapc->state);
break;
case IMAP_LOGIN:
result = imap_state_login_resp(conn, imapcode, imapc->state);
break;
case IMAP_FETCH:
result = imap_state_fetch_resp(conn, imapcode, imapc->state);
break;
case IMAP_SELECT:
result = imap_state_select_resp(conn, imapcode, imapc->state);
break;
case IMAP_LOGOUT:
/* fallthrough, just stop! */
default:
/* internal error */
state(conn, IMAP_STOP);
break;
}
}
return result;
}
static CURLcode imap_statemach_act(struct connectdata *conn)
{
CURLcode result;
curl_socket_t sock = conn->sock[FIRSTSOCKET];
int imapcode;
struct imap_conn *imapc = &conn->proto.imapc;
struct pingpong *pp = &imapc->pp;
size_t nread = 0;
/* Busy upgrading the connection; right now all I/O is SSL/TLS, not IMAP */
if(imapc->state == IMAP_UPGRADETLS)
return imap_state_upgrade_tls(conn);
/* Flush any data that needs to be sent */
if(pp->sendleft)
return Curl_pp_flushsend(pp);
/* Read the response from the server */
result = Curl_pp_readresp(sock, pp, &imapcode, &nread);
if(result)
return result;
if(imapcode) {
/* We have now received a full IMAP server response */
switch(imapc->state) {
case IMAP_SERVERGREET:
result = imap_state_servergreet_resp(conn, imapcode, imapc->state);
break;
case IMAP_STARTTLS:
result = imap_state_starttls_resp(conn, imapcode, imapc->state);
break;
case IMAP_CAPABILITY:
result = imap_state_capability_resp(conn, imapcode, imapc->state);
break;
case IMAP_AUTHENTICATE_PLAIN:
result = imap_state_auth_plain_resp(conn, imapcode, imapc->state);
break;
case IMAP_AUTHENTICATE_LOGIN:
result = imap_state_auth_login_resp(conn, imapcode, imapc->state);
break;
case IMAP_AUTHENTICATE_LOGIN_PASSWD:
result = imap_state_auth_login_password_resp(conn, imapcode,
imapc->state);
break;
#ifndef CURL_DISABLE_CRYPTO_AUTH
case IMAP_AUTHENTICATE_CRAMMD5:
result = imap_state_auth_cram_resp(conn, imapcode, imapc->state);
break;
case IMAP_AUTHENTICATE_DIGESTMD5:
result = imap_state_auth_digest_resp(conn, imapcode, imapc->state);
break;
case IMAP_AUTHENTICATE_DIGESTMD5_RESP:
result = imap_state_auth_digest_resp_resp(conn, imapcode, imapc->state);
break;
#endif
#ifdef USE_NTLM
case IMAP_AUTHENTICATE_NTLM:
result = imap_state_auth_ntlm_resp(conn, imapcode, imapc->state);
break;
case IMAP_AUTHENTICATE_NTLM_TYPE2MSG:
result = imap_state_auth_ntlm_type2msg_resp(conn, imapcode,
imapc->state);
break;
#endif
case IMAP_AUTHENTICATE:
result = imap_state_auth_final_resp(conn, imapcode, imapc->state);
break;
case IMAP_LOGIN:
result = imap_state_login_resp(conn, imapcode, imapc->state);
break;
case IMAP_FETCH:
result = imap_state_fetch_resp(conn, imapcode, imapc->state);
break;
case IMAP_SELECT:
result = imap_state_select_resp(conn, imapcode, imapc->state);
break;
case IMAP_LOGOUT:
/* fallthrough, just stop! */
default:
/* internal error */
state(conn, IMAP_STOP);
break;
}
}
return result;
}
static CURLcode imap_statemach_act(struct connectdata *conn)
{
CURLcode result;
curl_socket_t sock = conn->sock[FIRSTSOCKET];
struct SessionHandle *data=conn->data;
int imapcode;
struct imap_conn *imapc = &conn->proto.imapc;
struct pingpong *pp = &imapc->pp;
size_t nread = 0;
/* busy upgrading the connection; right now all I/O is SSL/TLS, not IMAP */
if(imapc->state == IMAP_UPGRADETLS)
return imap_state_upgrade_tls(conn);
if(pp->sendleft)
return Curl_pp_flushsend(pp);
/* we read a piece of response */
result = Curl_pp_readresp(sock, pp, &imapcode, &nread);
if(result)
return result;
if(imapcode)
/* we have now received a full IMAP server response */
switch(imapc->state) {
case IMAP_SERVERGREET:
if(imapcode != 'O') {
failf(data, "Got unexpected imap-server response");
return CURLE_FTP_WEIRD_SERVER_REPLY;
}
if(data->set.ftp_ssl && !conn->ssl[FIRSTSOCKET].use) {
/* We don't have a SSL/TLS connection yet, but SSL is requested. Switch
to TLS connection now */
const char *str;
str = getcmdid(conn);
result = imapsendf(conn, str, "%s STARTTLS", str);
state(conn, IMAP_STARTTLS);
}
else
result = imap_state_login(conn);
if(result)
return result;
break;
case IMAP_LOGIN:
result = imap_state_login_resp(conn, imapcode, imapc->state);
break;
case IMAP_STARTTLS:
result = imap_state_starttls_resp(conn, imapcode, imapc->state);
break;
case IMAP_FETCH:
result = imap_state_fetch_resp(conn, imapcode, imapc->state);
break;
case IMAP_SELECT:
result = imap_state_select_resp(conn, imapcode, imapc->state);
break;
case IMAP_LOGOUT:
/* fallthrough, just stop! */
default:
/* internal error */
state(conn, IMAP_STOP);
break;
}
return result;
}
