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-rw-r--r--openvpn/src/openvpn/proxy.c113
1 files changed, 76 insertions, 37 deletions
diff --git a/openvpn/src/openvpn/proxy.c b/openvpn/src/openvpn/proxy.c
index a2721cdc..80f5b87a 100644
--- a/openvpn/src/openvpn/proxy.c
+++ b/openvpn/src/openvpn/proxy.c
@@ -489,6 +489,75 @@ http_proxy_close (struct http_proxy_info *hp)
}
bool
+add_proxy_header (struct http_proxy_info *p,
+ socket_descriptor_t sd, /* already open to proxy */
+ const char *host, /* openvpn server remote */
+ const char *port /* openvpn server port */
+ )
+{
+ char buf[512];
+ int i;
+ bool hostheadercustom=false;
+
+ /* Check if any of the custom headers already provides Host: */
+ i=0;
+ while (p->options.custom_headers[i].name)
+ {
+ if(
+ ((!strcasecmp(p->options.custom_headers[i].name, "Host")) &&
+ (p->options.custom_headers[i].content))
+ ||
+ ((!strncasecmp(p->options.custom_headers[i].name, "Host:", 5)) &&
+ p->options.custom_headers[i].content == NULL)
+ )
+ hostheadercustom=true;
+ i++;
+ }
+
+ if (!hostheadercustom)
+ {
+ openvpn_snprintf (buf, sizeof(buf), "Host: %s", host);
+ msg (D_PROXY, "Send to HTTP proxy: '%s'", buf);
+ if (!send_line_crlf(sd, buf))
+ return false;
+ }
+
+ /* send User-Agent string if provided */
+ if (p->options.user_agent)
+ {
+ openvpn_snprintf (buf, sizeof(buf), "User-Agent: %s",
+ p->options.user_agent);
+ msg (D_PROXY, "Send to HTTP proxy: '%s'", buf);
+ if (!send_line_crlf (sd, buf))
+ return false;
+ }
+
+ /*
+ * Send custom headers if provided
+ * If content is NULL whole header is in name
+ */
+ i=0;
+ while (p->options.custom_headers[i].name)
+ {
+ if (p->options.custom_headers[i].content)
+ openvpn_snprintf (buf, sizeof(buf), "%s: %s",
+ p->options.custom_headers[i].name,
+ p->options.custom_headers[i].content);
+ else
+ openvpn_snprintf (buf, sizeof(buf), "%s",
+ p->options.custom_headers[i].name);
+
+ msg (D_PROXY, "Send to HTTP proxy: '%s'", buf);
+ if (!send_line_crlf (sd, buf))
+ return false;
+ i++;
+ }
+
+ return true;
+}
+
+
+bool
establish_http_proxy_passthru (struct http_proxy_info *p,
socket_descriptor_t sd, /* already open to proxy */
const char *host, /* openvpn server remote */
@@ -519,7 +588,6 @@ establish_http_proxy_passthru (struct http_proxy_info *p,
}
else
{
- int i=0;
/* format HTTP CONNECT message */
openvpn_snprintf (buf, sizeof(buf), "CONNECT %s:%s HTTP/%s",
host,
@@ -531,35 +599,10 @@ establish_http_proxy_passthru (struct http_proxy_info *p,
/* send HTTP CONNECT message to proxy */
if (!send_line_crlf (sd, buf))
goto error;
-
- openvpn_snprintf(buf, sizeof(buf), "Host: %s", host);
- if (!send_line_crlf(sd, buf))
+
+ if(!add_proxy_header (p, sd, host, port))
goto error;
- /* send User-Agent string if provided */
- if (p->options.user_agent)
- {
- openvpn_snprintf (buf, sizeof(buf), "User-Agent: %s",
- p->options.user_agent);
- if (!send_line_crlf (sd, buf))
- goto error;
- }
- /* Send custom headers if provided */
- while (p->options.custom_headers[i].name)
- {
- if (p->options.custom_headers[i].content)
- openvpn_snprintf (buf, sizeof(buf), "%s: %s",
- p->options.custom_headers[i].name,
- p->options.custom_headers[i].content);
- else
- openvpn_snprintf (buf, sizeof(buf), "%s",
- p->options.custom_headers[i].name);
-
- if (!send_line_crlf (sd, buf))
- goto error;
- i++;
- }
-
/* auth specified? */
switch (p->auth_method)
{
@@ -675,12 +718,10 @@ establish_http_proxy_passthru (struct http_proxy_info *p,
/* send HOST etc, */
- openvpn_snprintf (buf, sizeof(buf), "Host: %s", host);
- msg (D_PROXY, "Send to HTTP proxy: '%s'", buf);
- if (!send_line_crlf (sd, buf))
- goto error;
+ if(!add_proxy_header (p, sd, host, port))
+ goto error;
- msg (D_PROXY, "Attempting NTLM Proxy-Authorization phase 3");
+ msg (D_PROXY, "Attempting NTLM Proxy-Authorization phase 3");
{
const char *np3 = ntlm_phase_3 (p, buf2, &gc);
if (!np3)
@@ -786,10 +827,8 @@ establish_http_proxy_passthru (struct http_proxy_info *p,
goto error;
/* send HOST etc, */
- openvpn_snprintf (buf, sizeof(buf), "Host: %s", host);
- msg (D_PROXY, "Send to HTTP proxy: '%s'", buf);
- if (!send_line_crlf (sd, buf))
- goto error;
+ if(!add_proxy_header (p, sd, host, port))
+ goto error;
/* send digest response */
openvpn_snprintf (buf, sizeof(buf), "Proxy-Authorization: Digest username=\"%s\", realm=\"%s\", nonce=\"%s\", uri=\"%s\", qop=%s, nc=%s, cnonce=\"%s\", response=\"%s\"%s",