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proxy_connect_1014.patch
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diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
index 5951571..09f3188 100644
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -902,6 +902,13 @@ ngx_http_core_rewrite_phase(ngx_http_request_t *r, ngx_http_phase_handler_t *ph)
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"rewrite phase: %ui", r->phase_handler);
+#if (NGX_HTTP_PROXY_CONNECT)
+ if (r->method == NGX_HTTP_CONNECT) {
+ r->phase_handler = ph->next;
+ return NGX_AGAIN;
+ }
+#endif
+
rc = ph->handler(r);
if (rc == NGX_DECLINED) {
@@ -933,6 +940,14 @@ ngx_http_core_find_config_phase(ngx_http_request_t *r,
r->content_handler = NULL;
r->uri_changed = 0;
+#if (NGX_HTTP_PROXY_CONNECT)
+ if (r->method == NGX_HTTP_CONNECT) {
+ ngx_http_update_location_config(r);
+ r->phase_handler++;
+ return NGX_AGAIN;
+ }
+#endif
+
rc = ngx_http_core_find_location(r);
if (rc == NGX_ERROR) {
diff --git a/src/http/ngx_http_core_module.h b/src/http/ngx_http_core_module.h
index a6128b5..c21230b 100644
--- a/src/http/ngx_http_core_module.h
+++ b/src/http/ngx_http_core_module.h
@@ -315,6 +315,10 @@ struct ngx_http_core_loc_conf_s {
unsigned gzip_disable_degradation:2;
#endif
+#if (NGX_HTTP_PROXY_CONNECT)
+ unsigned accept_connect:1;
+#endif
+
ngx_http_location_tree_node_t *static_locations;
#if (NGX_PCRE)
ngx_http_core_loc_conf_t **regex_locations;
diff --git a/src/http/ngx_http_parse.c b/src/http/ngx_http_parse.c
index 844054c..1b5adf9 100644
--- a/src/http/ngx_http_parse.c
+++ b/src/http/ngx_http_parse.c
@@ -107,6 +107,14 @@ ngx_http_parse_request_line(ngx_http_request_t *r, ngx_buf_t *b)
enum {
sw_start = 0,
sw_method,
+#if (NGX_HTTP_PROXY_CONNECT)
+ sw_spaces_before_connect_host,
+ sw_connect_host_start,
+ sw_connect_host,
+ sw_connect_host_end,
+ sw_connect_host_ip_literal,
+ sw_connect_port,
+#endif
sw_spaces_before_uri,
sw_schema,
sw_schema_slash,
@@ -246,6 +254,13 @@ ngx_http_parse_request_line(ngx_http_request_t *r, ngx_buf_t *b)
r->method = NGX_HTTP_OPTIONS;
}
+#if (NGX_HTTP_PROXY_CONNECT)
+ if (ngx_str7_cmp(m, 'C', 'O', 'N', 'N', 'E', 'C', 'T', ' '))
+ {
+ r->method = NGX_HTTP_CONNECT;
+ }
+#endif
+
break;
case 8:
@@ -267,6 +282,13 @@ ngx_http_parse_request_line(ngx_http_request_t *r, ngx_buf_t *b)
}
state = sw_spaces_before_uri;
+
+#if (NGX_HTTP_PROXY_CONNECT)
+ if (r->method == NGX_HTTP_CONNECT) {
+ state = sw_spaces_before_connect_host;
+ }
+#endif
+
break;
}
@@ -276,6 +298,111 @@ ngx_http_parse_request_line(ngx_http_request_t *r, ngx_buf_t *b)
break;
+#if (NGX_HTTP_PROXY_CONNECT)
+ case sw_spaces_before_connect_host:
+
+ if (ch == ' ') {
+ break;
+ }
+
+ /* fall through */
+
+ case sw_connect_host_start:
+
+ r->connect_host_start = p;
+
+ if (ch == '[') {
+ state = sw_connect_host_ip_literal;
+ break;
+ }
+
+ state = sw_connect_host;
+
+ /* fall through */
+
+ case sw_connect_host:
+
+ c = (u_char) (ch | 0x20);
+ if (c >= 'a' && c <= 'z') {
+ break;
+ }
+
+ if ((ch >= '0' && ch <= '9') || ch == '.' || ch == '-') {
+ break;
+ }
+
+ /* fall through */
+
+ case sw_connect_host_end:
+
+ r->connect_host_end = p;
+
+ switch (ch) {
+ case ':':
+ state = sw_connect_port;
+ break;
+ default:
+ return NGX_HTTP_PARSE_INVALID_REQUEST;
+ }
+ break;
+
+ case sw_connect_host_ip_literal:
+
+ if (ch >= '0' && ch <= '9') {
+ break;
+ }
+
+ c = (u_char) (ch | 0x20);
+ if (c >= 'a' && c <= 'z') {
+ break;
+ }
+
+ switch (ch) {
+ case ':':
+ break;
+ case ']':
+ state = sw_connect_host_end;
+ break;
+ case '-':
+ case '.':
+ case '_':
+ case '~':
+ /* unreserved */
+ break;
+ case '!':
+ case '$':
+ case '&':
+ case '\'':
+ case '(':
+ case ')':
+ case '*':
+ case '+':
+ case ',':
+ case ';':
+ case '=':
+ /* sub-delims */
+ break;
+ default:
+ return NGX_HTTP_PARSE_INVALID_REQUEST;
+ }
+ break;
+
+ case sw_connect_port:
+ if (ch >= '0' && ch <= '9') {
+ break;
+ }
+
+ switch (ch) {
+ case ' ':
+ r->connect_port_end = p;
+ state = sw_host_http_09;
+ break;
+ default:
+ return NGX_HTTP_PARSE_INVALID_REQUEST;
+ }
+ break;
+#endif
+
/* space* before URI */
case sw_spaces_before_uri:
diff --git a/src/http/ngx_http_request.c b/src/http/ngx_http_request.c
index 5668bf4..430a67f 100644
--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -994,6 +994,53 @@ ngx_http_process_request_line(ngx_event_t *rev)
return;
}
+#if (NGX_HTTP_PROXY_CONNECT)
+
+ if (r->connect_host_start && r->connect_host_end) {
+
+ host.len = r->connect_host_end - r->connect_host_start;
+ host.data = r->connect_host_start;
+ rc = ngx_http_validate_host(&host, r->pool, 0);
+
+ if (rc == NGX_DECLINED) {
+ ngx_log_error(NGX_LOG_INFO, c->log, 0,
+ "client sent invalid host in request line");
+ ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
+ return;
+ }
+
+ if (rc == NGX_ERROR) {
+ ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
+ return;
+ }
+
+ r->connect_host = host;
+
+ if (!r->connect_port_end) {
+ ngx_log_error(NGX_LOG_INFO, c->log, 0,
+ "client sent no port in request line");
+ ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
+ return;
+ }
+
+ r->connect_port.data = r->connect_host_end + 1;
+ r->connect_port.len = r->connect_port_end
+ - r->connect_host_end - 1;
+
+ ngx_int_t port;
+
+ port = ngx_atoi(r->connect_port.data, r->connect_port.len);
+ if (port == NGX_ERROR || port < 1 || port > 65535) {
+ ngx_log_error(NGX_LOG_INFO, c->log, 0,
+ "client sent invalid port in request line");
+ ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
+ return;
+ }
+
+ r->connect_port_n = port;
+ }
+#endif
+
if (r->host_start && r->host_end) {
host.len = r->host_end - r->host_start;
@@ -1564,6 +1611,19 @@ ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
r->schema_end = new + (r->schema_end - old);
}
+#if (NGX_HTTP_PROXY_CONNECT)
+ if (r->connect_host_start) {
+ r->connect_host_start = new + (r->connect_host_start - old);
+ if (r->connect_host_end) {
+ r->connect_host_end = new + (r->connect_host_end - old);
+ }
+
+ if (r->connect_port_end) {
+ r->connect_port_end = new + (r->connect_port_end - old);
+ }
+ }
+#endif
+
if (r->host_start) {
r->host_start = new + (r->host_start - old);
if (r->host_end) {
@@ -1876,6 +1936,21 @@ ngx_http_process_request(ngx_http_request_t *r)
c = r->connection;
+#if (NGX_HTTP_PROXY_CONNECT)
+
+ ngx_http_core_loc_conf_t *clcf;
+
+ clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
+
+ if (r->method == NGX_HTTP_CONNECT && !clcf->accept_connect) {
+ ngx_log_error(NGX_LOG_INFO, c->log, 0,
+ "client sent connect method");
+ ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
+ return;
+ }
+
+#endif
+
#if (NGX_HTTP_SSL)
if (r->http_connection->ssl) {
diff --git a/src/http/ngx_http_request.h b/src/http/ngx_http_request.h
index 421004a..f07d4e7 100644
--- a/src/http/ngx_http_request.h
+++ b/src/http/ngx_http_request.h
@@ -42,6 +42,10 @@
#define NGX_HTTP_PATCH 0x4000
#define NGX_HTTP_TRACE 0x8000
+#if (NGX_HTTP_PROXY_CONNECT)
+#define NGX_HTTP_CONNECT 0x10000
+#endif
+
#define NGX_HTTP_CONNECTION_CLOSE 1
#define NGX_HTTP_CONNECTION_KEEP_ALIVE 2
@@ -408,6 +412,15 @@ struct ngx_http_request_s {
ngx_str_t exten;
ngx_str_t unparsed_uri;
+#if (NGX_HTTP_PROXY_CONNECT)
+ ngx_str_t connect_host;
+ ngx_str_t connect_port;
+ in_port_t connect_port_n;
+ u_char *connect_host_start;
+ u_char *connect_host_end;
+ u_char *connect_port_end;
+#endif
+
ngx_str_t method_name;
ngx_str_t http_protocol;
diff --git a/src/http/ngx_http_variables.c b/src/http/ngx_http_variables.c
index ab82177..54fe67f 100644
--- a/src/http/ngx_http_variables.c
+++ b/src/http/ngx_http_variables.c
@@ -161,6 +161,14 @@ static ngx_int_t ngx_http_variable_time_local(ngx_http_request_t *r,
static ngx_http_variable_t ngx_http_core_variables[] = {
+#if (NGX_HTTP_PROXY_CONNECT)
+ { ngx_string("connect_host"), NULL, ngx_http_variable_request,
+ offsetof(ngx_http_request_t, connect_host), 0, 0 },
+
+ { ngx_string("connect_port"), NULL, ngx_http_variable_request,
+ offsetof(ngx_http_request_t, connect_port), 0, 0 },
+#endif
+
{ ngx_string("http_host"), NULL, ngx_http_variable_header,
offsetof(ngx_http_request_t, headers_in.host), 0, 0 },