CURLcode Curl_proxy_connect(struct connectdata *conn)
{
if(conn->bits.tunnel_proxy && conn->bits.httpproxy) {
#ifndef CURL_DISABLE_PROXY
/* for [protocol] tunneled through HTTP proxy */
struct HTTP http_proxy;
void *prot_save;
const char *hostname;
int remote_port;
CURLcode result;
/* BLOCKING */
/* We want "seamless" operations through HTTP proxy tunnel */
/* Curl_proxyCONNECT is based on a pointer to a struct HTTP at the
* member conn->proto.http; we want [protocol] through HTTP and we have
* to change the member temporarily for connecting to the HTTP
* proxy. After Curl_proxyCONNECT we have to set back the member to the
* original pointer
*
* This function might be called several times in the multi interface case
* if the proxy's CONNTECT response is not instant.
*/
prot_save = conn->data->req.protop;
memset(&http_proxy, 0, sizeof(http_proxy));
conn->data->req.protop = &http_proxy;
connkeep(conn, "HTTP proxy CONNECT");
if(conn->bits.conn_to_host)
hostname = conn->conn_to_host.name;
else
hostname = conn->host.name;
if(conn->bits.conn_to_port)
remote_port = conn->conn_to_port;
else
remote_port = conn->remote_port;
result = Curl_proxyCONNECT(conn, FIRSTSOCKET, hostname,
remote_port, FALSE);
conn->data->req.protop = prot_save;
if(CURLE_OK != result)
return result;
Curl_safefree(conn->allocptr.proxyuserpwd);
#else
return CURLE_NOT_BUILT_IN;
#endif
}
/* no HTTP tunnel proxy, just return */
return CURLE_OK;
}
/*
* pop3_connect() should do everything that is to be considered a part of
* the connection phase.
*
* The variable 'done' points to will be TRUE if the protocol-layer connect
* phase is done when this function returns, or FALSE is not. When called as
* a part of the easy interface, it will always be TRUE.
*/
static CURLcode pop3_connect(struct connectdata *conn,
bool *done) /* see description above */
{
CURLcode result;
struct pop3_conn *pop3c = &conn->proto.pop3c;
struct SessionHandle *data=conn->data;
struct pingpong *pp = &pop3c->pp;
*done = FALSE; /* default to not done yet */
/* If there already is a protocol-specific struct allocated for this
sessionhandle, deal with it */
Curl_reset_reqproto(conn);
result = pop3_init(conn);
if(CURLE_OK != result)
return result;
/* We always support persistent connections on pop3 */
conn->bits.close = FALSE;
pp->response_time = RESP_TIMEOUT; /* set default response time-out */
pp->statemach_act = pop3_statemach_act;
pp->endofresp = pop3_endofresp;
pp->conn = conn;
if(conn->bits.tunnel_proxy && conn->bits.httpproxy) {
/* for POP3 over HTTP proxy */
struct HTTP http_proxy;
struct FTP *pop3_save;
/* BLOCKING */
/* We want "seamless" POP3 operations through HTTP proxy tunnel */
/* Curl_proxyCONNECT is based on a pointer to a struct HTTP at the member
* conn->proto.http; we want POP3 through HTTP and we have to change the
* member temporarily for connecting to the HTTP proxy. After
* Curl_proxyCONNECT we have to set back the member to the original struct
* POP3 pointer
*/
pop3_save = data->state.proto.pop3;
memset(&http_proxy, 0, sizeof(http_proxy));
data->state.proto.http = &http_proxy;
result = Curl_proxyCONNECT(conn, FIRSTSOCKET,
conn->host.name, conn->remote_port);
data->state.proto.pop3 = pop3_save;
if(CURLE_OK != result)
return result;
}
if(conn->handler->flags & PROTOPT_SSL) {
/* BLOCKING */
result = Curl_ssl_connect(conn, FIRSTSOCKET);
if(result)
return result;
}
Curl_pp_init(pp); /* init the response reader stuff */
/* When we connect, we start in the state where we await the server greet
response */
state(conn, POP3_SERVERGREET);
if(data->state.used_interface == Curl_if_multi)
result = pop3_multi_statemach(conn, done);
else {
result = pop3_easy_statemach(conn);
if(!result)
*done = TRUE;
}
return result;
}
/*
* smtp_connect() should do everything that is to be considered a part of
* the connection phase.
*
* The variable 'done' points to will be TRUE if the protocol-layer connect
* phase is done when this function returns, or FALSE is not. When called as
* a part of the easy interface, it will always be TRUE.
*/
static CURLcode smtp_connect(struct connectdata *conn,
bool *done) /* see description above */
{
CURLcode result;
struct smtp_conn *smtpc = &conn->proto.smtpc;
struct SessionHandle *data=conn->data;
struct pingpong *pp=&smtpc->pp;
const char *path = conn->data->state.path;
int len;
char localhost[1024 + 1];
*done = FALSE; /* default to not done yet */
/* If there already is a protocol-specific struct allocated for this
sessionhandle, deal with it */
Curl_reset_reqproto(conn);
result = smtp_init(conn);
if(CURLE_OK != result)
return result;
/* We always support persistant connections on smtp */
conn->bits.close = FALSE;
pp->response_time = RESP_TIMEOUT; /* set default response time-out */
pp->statemach_act = smtp_statemach_act;
pp->endofresp = smtp_endofresp;
pp->conn = conn;
#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_PROXY)
if(conn->bits.tunnel_proxy && conn->bits.httpproxy) {
/* for SMTP over HTTP proxy */
struct HTTP http_proxy;
struct FTP *smtp_save;
/* BLOCKING */
/* We want "seamless" SMTP operations through HTTP proxy tunnel */
/* Curl_proxyCONNECT is based on a pointer to a struct HTTP at the member
* conn->proto.http; we want SMTP through HTTP and we have to change the
* member temporarily for connecting to the HTTP proxy. After
* Curl_proxyCONNECT we have to set back the member to the original struct
* SMTP pointer
*/
smtp_save = data->state.proto.smtp;
memset(&http_proxy, 0, sizeof(http_proxy));
data->state.proto.http = &http_proxy;
result = Curl_proxyCONNECT(conn, FIRSTSOCKET,
conn->host.name, conn->remote_port);
data->state.proto.smtp = smtp_save;
if(CURLE_OK != result)
return result;
}
#endif /* !CURL_DISABLE_HTTP && !CURL_DISABLE_PROXY */
if(conn->protocol & PROT_SMTPS) {
/* BLOCKING */
/* SMTPS is simply smtp with SSL for the control channel */
/* now, perform the SSL initialization for this socket */
result = Curl_ssl_connect(conn, FIRSTSOCKET);
if(result)
return result;
}
Curl_pp_init(pp); /* init the response reader stuff */
pp->response_time = RESP_TIMEOUT; /* set default response time-out */
pp->statemach_act = smtp_statemach_act;
pp->endofresp = smtp_endofresp;
pp->conn = conn;
if(!*path) {
if(!Curl_gethostname(localhost, sizeof localhost))
path = localhost;
else
path = "localhost";
}
/* url decode the path and use it as domain with EHLO */
smtpc->domain = curl_easy_unescape(conn->data, path, 0, &len);
if(!smtpc->domain)
return CURLE_OUT_OF_MEMORY;
/* When we connect, we start in the state where we await the server greeting
*/
state(conn, SMTP_SERVERGREET);
if(data->state.used_interface == Curl_if_multi)
result = smtp_multi_statemach(conn, done);
else {
result = smtp_easy_statemach(conn);
if(!result)
*done = TRUE;
}
return result;
}
CURLcode Curl_proxy_connect(struct connectdata *conn, int sockindex)
{
if(conn->http_proxy.proxytype == CURLPROXY_HTTPS) {
const CURLcode result = https_proxy_connect(conn, sockindex);
if(result)
return result;
if(!conn->bits.proxy_ssl_connected[sockindex])
return result; /* wait for HTTPS proxy SSL initialization to complete */
}
if(conn->bits.tunnel_proxy && conn->bits.httpproxy) {
#ifndef CURL_DISABLE_PROXY
/* for [protocol] tunneled through HTTP proxy */
struct HTTP http_proxy;
void *prot_save;
const char *hostname;
int remote_port;
CURLcode result;
/* BLOCKING */
/* We want "seamless" operations through HTTP proxy tunnel */
/* Curl_proxyCONNECT is based on a pointer to a struct HTTP at the
* member conn->proto.http; we want [protocol] through HTTP and we have
* to change the member temporarily for connecting to the HTTP
* proxy. After Curl_proxyCONNECT we have to set back the member to the
* original pointer
*
* This function might be called several times in the multi interface case
* if the proxy's CONNECT response is not instant.
*/
prot_save = conn->data->req.protop;
memset(&http_proxy, 0, sizeof(http_proxy));
conn->data->req.protop = &http_proxy;
connkeep(conn, "HTTP proxy CONNECT");
/* for the secondary socket (FTP), use the "connect to host"
* but ignore the "connect to port" (use the secondary port)
*/
if(conn->bits.conn_to_host)
hostname = conn->conn_to_host.name;
else if(sockindex == SECONDARYSOCKET)
hostname = conn->secondaryhostname;
else
hostname = conn->host.name;
if(sockindex == SECONDARYSOCKET)
remote_port = conn->secondary_port;
else if(conn->bits.conn_to_port)
remote_port = conn->conn_to_port;
else
remote_port = conn->remote_port;
result = Curl_proxyCONNECT(conn, sockindex, hostname, remote_port);
conn->data->req.protop = prot_save;
if(CURLE_OK != result)
return result;
Curl_safefree(conn->allocptr.proxyuserpwd);
#else
return CURLE_NOT_BUILT_IN;
#endif
}
/* no HTTP tunnel proxy, just return */
return CURLE_OK;
}
/*
* imap_connect() should do everything that is to be considered a part of
* the connection phase.
*
* The variable 'done' points to will be TRUE if the protocol-layer connect
* phase is done when this function returns, or FALSE is not. When called as
* a part of the easy interface, it will always be TRUE.
*/
static CURLcode imap_connect(struct connectdata *conn,
bool *done) /* see description above */
{
CURLcode result;
struct imap_conn *imapc = &conn->proto.imapc;
struct SessionHandle *data=conn->data;
struct pingpong *pp = &imapc->pp;
*done = FALSE; /* default to not done yet */
/* If there already is a protocol-specific struct allocated for this
sessionhandle, deal with it */
Curl_reset_reqproto(conn);
result = imap_init(conn);
if(CURLE_OK != result)
return result;
/* We always support persistant connections on imap */
conn->bits.close = FALSE;
pp->response_time = RESP_TIMEOUT; /* set default response time-out */
pp->statemach_act = imap_statemach_act;
pp->endofresp = imap_endofresp;
pp->conn = conn;
#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_PROXY)
if(conn->bits.tunnel_proxy && conn->bits.httpproxy) {
/* for IMAP over HTTP proxy */
struct HTTP http_proxy;
struct FTP *imap_save;
/* BLOCKING */
/* We want "seamless" IMAP operations through HTTP proxy tunnel */
/* Curl_proxyCONNECT is based on a pointer to a struct HTTP at the member
* conn->proto.http; we want IMAP through HTTP and we have to change the
* member temporarily for connecting to the HTTP proxy. After
* Curl_proxyCONNECT we have to set back the member to the original struct
* IMAP pointer
*/
imap_save = data->state.proto.imap;
memset(&http_proxy, 0, sizeof(http_proxy));
data->state.proto.http = &http_proxy;
result = Curl_proxyCONNECT(conn, FIRSTSOCKET,
conn->host.name, conn->remote_port);
data->state.proto.imap = imap_save;
if(CURLE_OK != result)
return result;
}
#endif /* !CURL_DISABLE_HTTP && !CURL_DISABLE_PROXY */
if(conn->protocol & PROT_IMAPS) {
/* BLOCKING */
/* IMAPS is simply imap with SSL for the control channel */
/* now, perform the SSL initialization for this socket */
result = Curl_ssl_connect(conn, FIRSTSOCKET);
if(result)
return result;
}
Curl_pp_init(pp); /* init generic pingpong data */
/* When we connect, we start in the state where we await the server greeting
response */
state(conn, IMAP_SERVERGREET);
imapc->idstr = "*"; /* we start off waiting for a '*' response */
if(data->state.used_interface == Curl_if_multi)
result = imap_multi_statemach(conn, done);
else {
result = imap_easy_statemach(conn);
if(!result)
*done = TRUE;
}
return result;
}
static CURLcode ldap_connect(struct connectdata *conn, bool *done)
{
ldapconninfo *li = conn->proto.generic;
struct SessionHandle *data=conn->data;
int rc, proto = LDAP_VERSION3;
char hosturl[1024], *ptr;
strcpy(hosturl, "ldap");
ptr = hosturl+4;
if (conn->handler->flags & PROTOPT_SSL)
*ptr++ = 's';
snprintf(ptr, sizeof(hosturl)-(ptr-hosturl), "://%s:%d",
conn->host.name, conn->remote_port);
rc = ldap_init_fd(conn->sock[FIRSTSOCKET], li->proto, hosturl, &li->ld);
if (rc) {
failf(data, "LDAP local: Cannot connect to %s, %s",
hosturl, ldap_err2string(rc));
return CURLE_COULDNT_CONNECT;
}
ldap_set_option(li->ld, LDAP_OPT_PROTOCOL_VERSION, &proto);
if(conn->bits.tunnel_proxy && conn->bits.httpproxy) {
/* for LDAP over HTTP proxy */
struct HTTP http_proxy;
ldapconninfo *li_save;
CURLcode result;
/* BLOCKING */
/* We want "seamless" LDAP operations through HTTP proxy tunnel */
/* Curl_proxyCONNECT is based on a pointer to a struct HTTP at the member
* conn->proto.http; we want LDAP through HTTP and we have to change the
* member temporarily for connecting to the HTTP proxy. After
* Curl_proxyCONNECT we have to set back the member to the original struct
* LDAP pointer
*/
li_save = data->state.proto.generic;
memset(&http_proxy, 0, sizeof(http_proxy));
data->state.proto.http = &http_proxy;
result = Curl_proxyCONNECT(conn, FIRSTSOCKET,
conn->host.name, conn->remote_port);
data->state.proto.generic = li_save;
if(CURLE_OK != result)
return result;
}
#ifdef USE_SSL
if (conn->handler->flags & PROTOPT_SSL) {
CURLcode res;
if (data->state.used_interface == Curl_if_easy) {
res = Curl_ssl_connect(conn, FIRSTSOCKET);
if (res)
return res;
li->ssldone = TRUE;
} else {
res = Curl_ssl_connect_nonblocking(conn, FIRSTSOCKET, &li->ssldone);
if (res)
return res;
}
}
#endif
if (data->state.used_interface == Curl_if_easy)
return ldap_connecting(conn, done);
return CURLE_OK;
}
