mirror of
https://github.com/warmcat/libwebsockets.git
synced 2025-03-16 00:00:07 +01:00
117 lines
2.9 KiB
C
117 lines
2.9 KiB
C
/*
|
|
* libwebsockets - small server side websockets and web server implementation
|
|
*
|
|
* Copyright (C) 2010-2019 Andy Green <andy@warmcat.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation:
|
|
* version 2.1 of the License.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
* MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "core/private.h"
|
|
|
|
|
|
LWS_VISIBLE int
|
|
lws_set_proxy(struct lws_vhost *vhost, const char *proxy)
|
|
{
|
|
char authstring[96];
|
|
int brackets = 0;
|
|
char *p;
|
|
|
|
if (!proxy)
|
|
return -1;
|
|
|
|
/* we have to deal with a possible redundant leading http:// */
|
|
if (!strncmp(proxy, "http://", 7))
|
|
proxy += 7;
|
|
|
|
p = strrchr(proxy, '@');
|
|
if (p) { /* auth is around */
|
|
|
|
if ((unsigned int)(p - proxy) > sizeof(authstring) - 1)
|
|
goto auth_too_long;
|
|
|
|
lws_strncpy(authstring, proxy, p - proxy + 1);
|
|
// null termination not needed on input
|
|
if (lws_b64_encode_string(authstring, lws_ptr_diff(p, proxy),
|
|
vhost->proxy_basic_auth_token,
|
|
sizeof vhost->proxy_basic_auth_token) < 0)
|
|
goto auth_too_long;
|
|
|
|
lwsl_info(" Proxy auth in use\n");
|
|
|
|
#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
|
|
proxy = p + 1;
|
|
#endif
|
|
} else
|
|
vhost->proxy_basic_auth_token[0] = '\0';
|
|
|
|
#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
|
|
|
|
#if defined(LWS_WITH_IPV6)
|
|
/*
|
|
* isolating the address / port is complicated by IPv6 overloading
|
|
* the meaning of : in the address. The convention to solve it is to
|
|
* put [] around the ipv6 address part, eg, "[::1]:443". This must be
|
|
* parsed to "::1" as the address and the port as 443.
|
|
*
|
|
* IPv4 addresses like myproxy:443 continue to be parsed as normal.
|
|
*/
|
|
|
|
if (proxy[0] == '[')
|
|
brackets = 1;
|
|
#endif
|
|
|
|
lws_strncpy(vhost->http.http_proxy_address, proxy + brackets,
|
|
sizeof(vhost->http.http_proxy_address));
|
|
|
|
p = vhost->http.http_proxy_address;
|
|
|
|
#if defined(LWS_WITH_IPV6)
|
|
if (brackets) {
|
|
/* original is IPv6 format "[::1]:443" */
|
|
|
|
p = strchr(vhost->http.http_proxy_address, ']');
|
|
if (!p) {
|
|
lwsl_err("%s: malformed proxy '%s'\n", __func__, proxy);
|
|
|
|
return -1;
|
|
}
|
|
*p++ = '\0';
|
|
}
|
|
#endif
|
|
|
|
p = strchr(p, ':');
|
|
if (!p && !vhost->http.http_proxy_port) {
|
|
lwsl_err("http_proxy needs to be ads:port\n");
|
|
|
|
return -1;
|
|
}
|
|
if (p) {
|
|
*p = '\0';
|
|
vhost->http.http_proxy_port = atoi(p + 1);
|
|
}
|
|
|
|
lwsl_info(" Proxy %s:%u\n", vhost->http.http_proxy_address,
|
|
vhost->http.http_proxy_port);
|
|
#endif
|
|
|
|
return 0;
|
|
|
|
auth_too_long:
|
|
lwsl_err("proxy auth too long\n");
|
|
|
|
return -1;
|
|
}
|
|
|