108 lines
3.2 KiB
C++
108 lines
3.2 KiB
C++
#include <assert.h>
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#include <stdio.h>
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#include <string.h>
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#include <strings.h>
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#include <unistd.h>
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#include "http_decoder_inc.h"
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#include "llhttp.h"
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struct http_tunnel_message
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{
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enum http_tunnel_message_type type;
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hstring tunnel_payload;
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};
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int httpd_tunnel_identify(struct http_decoder_env *httpd_env, int curdir, struct http_decoder_half_data *hfdata)
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{
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if(0 == httpd_env->hd_cfg.proxy_enable){
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return 0;
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}
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if(FLOW_DIRECTION_C2S == curdir){
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struct http_request_line reqline = {};
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http_decoder_half_data_get_request_line(hfdata, &reqline);
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if(0 == strncasecmp_safe("CONNECT", (char *)reqline.method.iov_base,
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7, reqline.method.iov_len)){
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return 1;
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}
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}else{
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struct http_response_line resline = {};
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http_decoder_half_data_get_response_line(hfdata, &resline);
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if(resline.status_code == HTTP_STATUS_OK
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&& 0 == strncasecmp_safe("Connection established", (char *)resline.status.iov_base,
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strlen("Connection established"), resline.status.iov_len)){
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return 1;
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}
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}
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return 0;
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}
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int httpd_is_tunnel_session(const struct http_decoder_env *httpd_env, const struct http_decoder_exdata *ex_data)
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{
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if(0 == httpd_env->hd_cfg.proxy_enable){
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return 0;
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}
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return (ex_data && ex_data->tunnel_state != HTTP_TUN_NON);
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}
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int httpd_in_tunnel_transmitting(const struct http_decoder_env *httpd_env, struct http_decoder_exdata *ex_data)
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{
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if(0 == httpd_env->hd_cfg.proxy_enable){
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return 0;
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}
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return (ex_data && ex_data->tunnel_state >= HTTP_TUN_INNER_STARTING);
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}
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enum http_tunnel_message_type httpd_tunnel_state_to_msg(const struct http_decoder_exdata *ex_data)
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{
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if(ex_data->tunnel_state == HTTP_TUN_INNER_STARTING){
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return HTTP_TUNNEL_OPENING;
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}
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if(ex_data->tunnel_state == HTTP_TUN_INNER_TRANS){
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return HTTP_TUNNEL_ACTIVE;
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}
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return HTTP_TUNNEL_MSG_MAX;
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}
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void httpd_tunnel_state_update(struct http_decoder_exdata *ex_data)
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{
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if(ex_data->tunnel_state == HTTP_TUN_INNER_STARTING){
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ex_data->tunnel_state = HTTP_TUN_INNER_TRANS;
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}
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}
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void http_decoder_push_tunnel_data(struct session *sess, const struct http_decoder_exdata *exdata, enum http_tunnel_message_type type, const char *payload, uint16_t payload_len)
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{
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struct http_tunnel_message *tmsg = (struct http_tunnel_message *)CALLOC(struct http_tunnel_message, 1);
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tmsg->type = type;
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tmsg->tunnel_payload.iov_base = (char *)payload;
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tmsg->tunnel_payload.iov_len = payload_len;
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session_mq_publish_message(sess, exdata->pub_topic_id, tmsg);
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}
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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void http_tunnel_message_get_payload(const struct http_tunnel_message *tmsg,
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hstring *tunnel_payload)
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{
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if (unlikely(NULL == tmsg || tunnel_payload == NULL))
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{
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return;
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}
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tunnel_payload->iov_base = tmsg->tunnel_payload.iov_base;
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tunnel_payload->iov_len = tmsg->tunnel_payload.iov_len;
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}
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enum http_tunnel_message_type http_tunnel_message_type_get(const struct http_tunnel_message *tmsg)
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{
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return tmsg->type;
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}
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#ifdef __cplusplus
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}
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#endif
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