refine http framework, use http message

@@ -27,41 +27,263 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #include <stdlib.h>
 
+using namespace std;
+
 #include <srs_kernel_error.hpp>
 #include <srs_kernel_log.hpp>
 #include <srs_app_socket.hpp>
 
 #define SRS_DEFAULT_HTTP_PORT 80
 
+#define SRS_HTTP_HEADER_BUFFER        1024
+
 SrsHttpMessage::SrsHttpMessage()
 {
-    body = new SrsBuffer();
-    state = SrsHttpParseStateInit;
+    _body = new SrsBuffer();
+    _state = SrsHttpParseStateInit;
 }
 
 SrsHttpMessage::~SrsHttpMessage()
 {
-    srs_freep(body);
+    srs_freep(_body);
 }
 
 void SrsHttpMessage::reset()
 {
-    state = SrsHttpParseStateInit;
-    body->clear();
-    url = "";
+    _state = SrsHttpParseStateInit;
+    _body->clear();
+    _url = "";
 }
 
 bool SrsHttpMessage::is_complete()
 {
-    return state == SrsHttpParseStateComplete;
+    return _state == SrsHttpParseStateComplete;
+}
+
+u_int8_t SrsHttpMessage::method()
+{
+    return (u_int8_t)_header.method;
+}
+
+string SrsHttpMessage::url()
+{
+    return _url;
+}
+
+string SrsHttpMessage::body()
+{
+    std::string b;
+    
+    if (_body && !_body->empty()) {
+        b.append(_body->bytes(), _body->size());
+    }
+    
+    return b;
+}
+
+int64_t SrsHttpMessage::body_size()
+{
+    return (int64_t)_body->size();
+}
+
+int64_t SrsHttpMessage::content_length()
+{
+    return _header.content_length;
+}
+
+void SrsHttpMessage::set_url(std::string url)
+{
+    _url = url;
+}
+
+void SrsHttpMessage::set_state(SrsHttpParseState state)
+{
+    _state = state;
+}
+
+void SrsHttpMessage::set_header(http_parser* header)
+{
+    memcpy(&_header, header, sizeof(http_parser));
+}
+
+void SrsHttpMessage::append_body(const char* body, int length)
+{
+    _body->append(body, length);
 }
 
 SrsHttpParser::SrsHttpParser()
 {
+    msg = NULL;
 }
 
 SrsHttpParser::~SrsHttpParser()
 {
+    srs_freep(msg);
+}
+
+int SrsHttpParser::initialize(enum http_parser_type type)
+{
+    int ret = ERROR_SUCCESS;
+    
+    memset(&settings, 0, sizeof(settings));
+    settings.on_message_begin = on_message_begin;
+    settings.on_url = on_url;
+    settings.on_header_field = on_header_field;
+    settings.on_header_value = on_header_value;
+    settings.on_headers_complete = on_headers_complete;
+    settings.on_body = on_body;
+    settings.on_message_complete = on_message_complete;
+    
+    http_parser_init(&parser, type);
+    // callback object ptr.
+    parser.data = (void*)this;
+    
+    return ret;
+}
+
+int SrsHttpParser::parse_message(SrsSocket* skt, SrsHttpMessage** ppmsg)
+{
+    *ppmsg = NULL;
+    
+    int ret = ERROR_SUCCESS;
+
+    // the msg must be always NULL
+    srs_assert(msg == NULL);
+    msg = new SrsHttpMessage();
+    
+    // reset response header.
+    msg->reset();
+    
+    // do parse
+    if ((ret = parse_message_imp(skt)) != ERROR_SUCCESS) {
+        if (!srs_is_client_gracefully_close(ret)) {
+            srs_error("parse http msg failed. ret=%d", ret);
+        }
+        srs_freep(msg);
+        return ret;
+    }
+    
+    // parse ok, return the msg.
+    *ppmsg = msg;
+    msg = NULL;
+    
+    return ret;
+}
+
+int SrsHttpParser::parse_message_imp(SrsSocket* skt)
+{
+    int ret = ERROR_SUCCESS;
+    
+    // the msg should never be NULL
+    srs_assert(msg != NULL);
+    
+    // parser header.
+    char buf[SRS_HTTP_HEADER_BUFFER];
+    for (;;) {
+        ssize_t nread;
+        if ((ret = skt->read(buf, (size_t)sizeof(buf), &nread)) != ERROR_SUCCESS) {
+            if (!srs_is_client_gracefully_close(ret)) {
+                srs_error("read body from server failed. ret=%d", ret);
+            }
+            return ret;
+        }
+        
+        ssize_t nparsed = http_parser_execute(&parser, &settings, buf, nread);
+        srs_info("read_size=%d, nparsed=%d", (int)nread, (int)nparsed);
+
+        // check header size.
+        if (msg->is_complete()) {
+            srs_trace("http request parsed, method=%d, url=%s, content-length=%"PRId64"", 
+                msg->method(), msg->url().c_str(), msg->content_length());
+            
+            return ret;
+        }
+        
+        if (nparsed != nread) {
+            ret = ERROR_HTTP_PARSE_HEADER;
+            srs_error("parse response error, parsed(%d)!=read(%d), ret=%d", (int)nparsed, (int)nread, ret);
+            return ret;
+        }
+    }
+
+    return ret;
+}
+
+int SrsHttpParser::on_message_begin(http_parser* parser)
+{
+    SrsHttpParser* obj = (SrsHttpParser*)parser->data;
+    obj->msg->set_state(SrsHttpParseStateStart);
+    
+    srs_info("***MESSAGE BEGIN***");
+    
+    return 0;
+}
+
+int SrsHttpParser::on_headers_complete(http_parser* parser)
+{
+    SrsHttpParser* obj = (SrsHttpParser*)parser->data;
+    obj->msg->set_header(parser);
+    
+    srs_info("***HEADERS COMPLETE***");
+    
+    // see http_parser.c:1570, return 1 to skip body.
+    return 0;
+}
+
+int SrsHttpParser::on_message_complete(http_parser* parser)
+{
+    SrsHttpParser* obj = (SrsHttpParser*)parser->data;
+    // save the parser when header parse completed.
+    obj->msg->set_state(SrsHttpParseStateComplete);
+    
+    srs_info("***MESSAGE COMPLETE***\n");
+    
+    return 0;
+}
+
+int SrsHttpParser::on_url(http_parser* parser, const char* at, size_t length)
+{
+    SrsHttpParser* obj = (SrsHttpParser*)parser->data;
+    
+    if (length > 0) {
+        std::string url;
+        
+        url.append(at, (int)length);
+        
+        obj->msg->set_url(url);
+    }
+    
+    srs_info("Method: %d, Url: %.*s", parser->method, (int)length, at);
+    
+    return 0;
+}
+
+int SrsHttpParser::on_header_field(http_parser* /*parser*/, const char* at, size_t length)
+{
+    srs_info("Header field: %.*s", (int)length, at);
+    return 0;
+}
+
+int SrsHttpParser::on_header_value(http_parser* /*parser*/, const char* at, size_t length)
+{
+    srs_info("Header value: %.*s", (int)length, at);
+    return 0;
+}
+
+int SrsHttpParser::on_body(http_parser* parser, const char* at, size_t length)
+{
+    SrsHttpParser* obj = (SrsHttpParser*)parser->data;
+    
+    if (length > 0) {
+        srs_assert(obj);
+        srs_assert(obj->msg);
+        
+        obj->msg->append_body(at, (int)length);
+    }
+    
+    srs_info("Body: %.*s", (int)length, at);
+
+    return 0;
 }
 
 SrsHttpUri::SrsHttpUri()

@@ -68,17 +68,43 @@ enum SrsHttpParseState {
 */
 class SrsHttpMessage
 {
-public:
-    std::string url;
-    http_parser header;
-    SrsBuffer* body;
-    SrsHttpParseState state;
+private:
+    /**
+    * parsed url.
+    */
+    std::string _url;
+    /**
+    * parsed http header.
+    */
+    http_parser _header;
+    /**
+    * body object, in bytes.
+    * @remark, user can get body in string by get_body().
+    */
+    SrsBuffer* _body;
+    /**
+    * parser state
+    * @remark, user can use is_complete() to determine the state.
+    */
+    SrsHttpParseState _state;
     
+public:
     SrsHttpMessage();
     virtual ~SrsHttpMessage();
     
+public:
     virtual void reset();
+public:
     virtual bool is_complete();
+    virtual u_int8_t method();
+    virtual std::string url();
+    virtual std::string body();
+    virtual int64_t body_size();
+    virtual int64_t content_length();
+    virtual void set_url(std::string url);
+    virtual void set_state(SrsHttpParseState state);
+    virtual void set_header(http_parser* header);
+    virtual void append_body(const char* body, int length);
 };
 
 /**
@@ -87,11 +113,39 @@ public:
 */
 class SrsHttpParser
 {
+private:
+    http_parser_settings settings;
+    http_parser parser;
+    SrsHttpMessage* msg;
 public:
     SrsHttpParser();
     virtual ~SrsHttpParser();
 public:
-    //virtual int parse_requst(SrsHttpMessage** ppreq);
+    /**
+    * initialize the http parser with specified type,
+    * one parser can only parse request or response messages.
+    */
+    virtual int initialize(enum http_parser_type type);
+    /**
+    * always parse a http message,
+    * that is, the *ppmsg always NOT-NULL when return success.
+    * or error and *ppmsg must be NULL.
+    * @remark, if success, *ppmsg always NOT-NULL, *ppmsg always is_complete().
+    */
+    virtual int parse_message(SrsSocket* skt, SrsHttpMessage** ppmsg);
+private:
+    /**
+    * parse the HTTP message to member field: msg.
+    */
+    virtual int parse_message_imp(SrsSocket* skt);
+private:
+    static int on_message_begin(http_parser* parser);
+    static int on_headers_complete(http_parser* parser);
+    static int on_message_complete(http_parser* parser);
+    static int on_url(http_parser* parser, const char* at, size_t length);
+    static int on_header_field(http_parser* parser, const char* at, size_t length);
+    static int on_header_value(http_parser* parser, const char* at, size_t length);
+    static int on_body(http_parser* parser, const char* at, size_t length);
 };
 
 /**

@@ -33,18 +33,19 @@ using namespace std;
 #include <srs_app_socket.hpp>
 #include <srs_app_http.hpp>
 #include <srs_kernel_buffer.hpp>
+#include <srs_core_autofree.hpp>
 
 #define SRS_HTTP_HEADER_BUFFER        1024
 
 SrsHttpConn::SrsHttpConn(SrsServer* srs_server, st_netfd_t client_stfd) 
     : SrsConnection(srs_server, client_stfd)
 {
-    req = new SrsHttpMessage();
+    parser = new SrsHttpParser();
 }
 
 SrsHttpConn::~SrsHttpConn()
 {
-    srs_freep(req);
+    srs_freep(parser);
 }
 
 int SrsHttpConn::do_cycle()
@@ -57,70 +58,33 @@ int SrsHttpConn::do_cycle()
     }
     srs_trace("http get peer ip success. ip=%s", ip);
     
-    // setup http parser
-    http_parser_settings settings;
-    
-    memset(&settings, 0, sizeof(settings));
-    settings.on_message_begin = on_message_begin;
-    settings.on_url = on_url;
-    settings.on_header_field = on_header_field;
-    settings.on_header_value = on_header_value;
-    settings.on_headers_complete = on_headers_complete;
-    settings.on_body = on_body;
-    settings.on_message_complete = on_message_complete;
-    
-    http_parser parser;
-    http_parser_init(&parser, HTTP_REQUEST);
-    // callback object ptr.
-    parser.data = (void*)this;
+    // initialize parser
+    if ((ret = parser->initialize(HTTP_REQUEST)) != ERROR_SUCCESS) {
+        srs_error("initialize http parser failed. ret=%d", ret);
+        return ret;
+    }
     
     // underlayer socket
     SrsSocket skt(stfd);
     
+    // process http messages.
     for (;;) {
-        if ((ret = parse_request(&skt, &parser, &settings)) != ERROR_SUCCESS) {
-            if (!srs_is_client_gracefully_close(ret)) {
-                srs_error("http client cycle failed. ret=%d", ret);
-            }
-            return ret;
-        }
-    }
+        SrsHttpMessage* req = NULL;
         
-    return ret;
-}
-
-int SrsHttpConn::parse_request(SrsSocket* skt, http_parser* parser, http_parser_settings* settings)
-{
-    int ret = ERROR_SUCCESS;
-
-    // reset response header.
-    req->reset();
-    
-    // parser header.
-    char buf[SRS_HTTP_HEADER_BUFFER];
-    for (;;) {
-        ssize_t nread;
-        if ((ret = skt->read(buf, (size_t)sizeof(buf), &nread)) != ERROR_SUCCESS) {
-            if (!srs_is_client_gracefully_close(ret)) {
-                srs_error("read body from server failed. ret=%d", ret);
-            }
+        // get a http message
+        if ((ret = parser->parse_message(&skt, &req)) != ERROR_SUCCESS) {
             return ret;
         }
 
-        ssize_t nparsed = http_parser_execute(parser, settings, buf, nread);
-        srs_info("read_size=%d, nparsed=%d", (int)nread, (int)nparsed);
+        // if SUCCESS, always NOT-NULL and completed message.
+        srs_assert(req);
+        srs_assert(req->is_complete());
         
-        // check header size.
-        if (req->is_complete()) {
-            srs_trace("http request parsed, method=%d, url=%s, content-length=%"PRId64"", 
-                req->header.method, req->url.c_str(), req->header.content_length);
+        // always free it in this scope.
+        SrsAutoFree(SrsHttpMessage, req, false);
         
-            return process_request(skt);
-        }
-        
-        if (nparsed != nread) {
-            ret = ERROR_HTTP_PARSE_HEADER;
-            srs_error("parse response error, parsed(%d)!=read(%d), ret=%d", (int)nparsed, (int)nread, ret);
+        // ok, handle http request.
+        if ((ret = process_request(&skt, req)) != ERROR_SUCCESS) {
             return ret;
         }
     }
@@ -128,11 +92,11 @@ int SrsHttpConn::parse_request(SrsSocket* skt, http_parser* parser, http_parser_
     return ret;
 }
 
-int SrsHttpConn::process_request(SrsSocket* skt) 
+int SrsHttpConn::process_request(SrsSocket* skt, SrsHttpMessage* req) 
 {
     int ret = ERROR_SUCCESS;
     
-    if (req->header.method == HTTP_OPTIONS) {
+    if (req->method() == HTTP_OPTIONS) {
         char data[] = "HTTP/1.1 200 OK" __CRLF
             "Content-Length: 0"__CRLF
             "Server: SRS/"RTMP_SIG_SRS_VERSION""__CRLF
@@ -149,14 +113,14 @@ int SrsHttpConn::process_request(SrsSocket* skt)
         
         std::stringstream ss;
         ss << "HTTP/1.1 200 OK " << __CRLF
-            << "Content-Length: "<< tilte.length() + req->body->size() << __CRLF
+            << "Content-Length: "<< tilte.length() + req->body_size() << __CRLF
             << "Server: SRS/"RTMP_SIG_SRS_VERSION"" << __CRLF
             << "Allow: DELETE, GET, HEAD, OPTIONS, POST, PUT" << __CRLF
             << "Access-Control-Allow-Origin: *" << __CRLF
             << "Access-Control-Allow-Methods: GET, POST, HEAD, PUT, DELETE" << __CRLF
             << "Access-Control-Allow-Headers: Cache-Control,X-Proxy-Authorization,X-Requested-With,Content-Type" << __CRLF
             << "Content-Type: text/html;charset=utf-8" << __CRLFCRLF
-            << tilte << (req->body->empty()? "":req->body->bytes())
+            << tilte << req->body().c_str()
             << "";
         return skt->write(ss.str().c_str(), ss.str().length(), NULL);
     }
@@ -164,74 +128,4 @@ int SrsHttpConn::process_request(SrsSocket* skt)
     return ret;
 }
 
-int SrsHttpConn::on_message_begin(http_parser* parser)
-{
-    SrsHttpConn* obj = (SrsHttpConn*)parser->data;
-    obj->req->state = SrsHttpParseStateStart;
-    
-    srs_info("***MESSAGE BEGIN***");
-    
-    return 0;
-}
-
-int SrsHttpConn::on_headers_complete(http_parser* parser)
-{
-    SrsHttpConn* obj = (SrsHttpConn*)parser->data;
-    memcpy(&obj->req->header, parser, sizeof(http_parser));
-    
-    srs_info("***HEADERS COMPLETE***");
-    
-    // see http_parser.c:1570, return 1 to skip body.
-    return 0;
-}
-
-int SrsHttpConn::on_message_complete(http_parser* parser)
-{
-    SrsHttpConn* obj = (SrsHttpConn*)parser->data;
-    // save the parser when header parse completed.
-    obj->req->state = SrsHttpParseStateComplete;
-    
-    srs_info("***MESSAGE COMPLETE***\n");
-    
-    return 0;
-}
-
-int SrsHttpConn::on_url(http_parser* parser, const char* at, size_t length)
-{
-    SrsHttpConn* obj = (SrsHttpConn*)parser->data;
-    
-    if (length > 0) {
-        obj->req->url.append(at, (int)length);
-    }
-    
-    srs_info("Method: %d, Url: %.*s", parser->method, (int)length, at);
-    
-    return 0;
-}
-
-int SrsHttpConn::on_header_field(http_parser* /*parser*/, const char* at, size_t length)
-{
-    srs_info("Header field: %.*s", (int)length, at);
-    return 0;
-}
-
-int SrsHttpConn::on_header_value(http_parser* /*parser*/, const char* at, size_t length)
-{
-    srs_info("Header value: %.*s", (int)length, at);
-    return 0;
-}
-
-int SrsHttpConn::on_body(http_parser* parser, const char* at, size_t length)
-{
-    SrsHttpConn* obj = (SrsHttpConn*)parser->data;
-    
-    if (length > 0) {
-        obj->req->body->append(at, (int)length);
-    }
-    
-    srs_info("Body: %.*s", (int)length, at);
-
-    return 0;
-}
-
 #endif

@@ -38,28 +38,20 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <http_parser.h>
 
 class SrsSocket;
+class SrsHttpParser;
 class SrsHttpMessage;
 
 class SrsHttpConn : public SrsConnection
 {
 private:
-    SrsHttpMessage* req;
+    SrsHttpParser* parser;
 public:
     SrsHttpConn(SrsServer* srs_server, st_netfd_t client_stfd);
     virtual ~SrsHttpConn();
 protected:
     virtual int do_cycle();
 private:
-    virtual int parse_request(SrsSocket* skt, http_parser* parser, http_parser_settings* settings);
-    virtual int process_request(SrsSocket* skt);
-private:
-    static int on_message_begin(http_parser* parser);
-    static int on_headers_complete(http_parser* parser);
-    static int on_message_complete(http_parser* parser);
-    static int on_url(http_parser* parser, const char* at, size_t length);
-    static int on_header_field(http_parser* parser, const char* at, size_t length);
-    static int on_header_value(http_parser* parser, const char* at, size_t length);
-    static int on_body(http_parser* parser, const char* at, size_t length);
+    virtual int process_request(SrsSocket* skt, SrsHttpMessage* req);
 };
 
 #endif

@@ -45,17 +45,30 @@ SrsHttpClient::SrsHttpClient()
 {
     connected = false;
     stfd = NULL;
+    parser = NULL;
 }
 
 SrsHttpClient::~SrsHttpClient()
 {
     disconnect();
+    srs_freep(parser);
 }
 
 int SrsHttpClient::post(SrsHttpUri* uri, std::string req, std::string& res)
 {
+    res = "";
+    
     int ret = ERROR_SUCCESS;
     
+    if (!parser) {
+        parser = new SrsHttpParser();
+        
+        if ((ret = parser->initialize(HTTP_RESPONSE)) != ERROR_SUCCESS) {
+            srs_error("initialize parser failed. ret=%d", ret);
+            return ret;
+        }
+    }
+    
     if ((ret = connect(uri)) != ERROR_SUCCESS) {
         srs_error("http connect server failed. ret=%d", ret);
         return ret;
@@ -77,8 +90,7 @@ int SrsHttpClient::post(SrsHttpUri* uri, std::string req, std::string& res)
     SrsSocket skt(stfd);
     
     std::string data = ss.str();
-    ssize_t nwrite;
-    if ((ret = skt.write(data.c_str(), data.length(), &nwrite)) != ERROR_SUCCESS) {
+    if ((ret = skt.write(data.c_str(), data.length(), NULL)) != ERROR_SUCCESS) {
         // disconnect when error.
         disconnect();
         
@@ -86,10 +98,19 @@ int SrsHttpClient::post(SrsHttpUri* uri, std::string req, std::string& res)
         return ret;
     }
     
-    if ((ret = parse_response(uri, &skt, &res)) != ERROR_SUCCESS) {
+    SrsHttpMessage* msg = NULL;
+    if ((ret = parser->parse_message(&skt, &msg)) != ERROR_SUCCESS) {
         srs_error("parse http post response failed. ret=%d", ret);
         return ret;
     }
+
+    srs_assert(msg);
+    srs_assert(msg->is_complete());
+    
+    // get response body.
+    if (msg->body_size() > 0) {
+        res = msg->body();
+    }
     srs_info("parse http post response success.");
     
     return ret;
@@ -153,152 +174,6 @@ int SrsHttpClient::connect(SrsHttpUri* uri)
     return ret;
 }
 
-int SrsHttpClient::parse_response(SrsHttpUri* uri, SrsSocket* skt, std::string* response)
-{
-    int ret = ERROR_SUCCESS;
-
-    int body_received = 0;
-    if ((ret = parse_response_header(skt, response, body_received)) != ERROR_SUCCESS) {
-        srs_error("parse response header failed. ret=%d", ret);
-        return ret;
-    }
-
-    if ((ret = parse_response_body(uri, skt, response, body_received)) != ERROR_SUCCESS) {
-        srs_error("parse response body failed. ret=%d", ret);
-        return ret;
-    }
-
-    srs_info("url %s download, body size=%"PRId64, uri->get_url(), http_header.content_length);
-    
-    return ret;
-}
-
-int SrsHttpClient::parse_response_header(SrsSocket* skt, std::string* response, int& body_received)
-{
-    int ret = ERROR_SUCCESS;
-
-    http_parser_settings settings;
-    
-    memset(&settings, 0, sizeof(settings));
-    settings.on_headers_complete = on_headers_complete;
-    
-    http_parser parser;
-    http_parser_init(&parser, HTTP_RESPONSE);
-    // callback object ptr.
-    parser.data = (void*)this;
-    
-    // reset response header.
-    memset(&http_header, 0, sizeof(http_header));
-    
-    // parser header.
-    char buf[SRS_HTTP_HEADER_BUFFER];
-    for (;;) {
-        ssize_t nread;
-        if ((ret = skt->read(buf, (size_t)sizeof(buf), &nread)) != ERROR_SUCCESS) {
-            srs_error("read body from server failed. ret=%d", ret);
-            return ret;
-        }
-        
-        ssize_t nparsed = http_parser_execute(&parser, &settings, buf, nread);
-        srs_info("read_size=%d, nparsed=%d", (int)nread, (int)nparsed);
-
-        // check header size.
-        if (http_header.nread != 0) {
-            body_received = nread - nparsed;
-            
-            srs_info("http header parsed, size=%d, content-length=%"PRId64", body-received=%d", 
-                http_header.nread, http_header.content_length, body_received);
-                
-            if(response != NULL && body_received > 0){
-                response->append(buf + nparsed, body_received);
-            }
-
-            return ret;
-        }
-        
-        if (nparsed != nread) {
-            ret = ERROR_HTTP_PARSE_HEADER;
-            srs_error("parse response error, parsed(%d)!=read(%d), ret=%d", (int)nparsed, (int)nread, ret);
-            return ret;
-        }
-    }
-    
-    return ret;
-}
-
-int SrsHttpClient::parse_response_body(SrsHttpUri* uri, SrsSocket* skt, std::string* response, int body_received)
-{
-    int ret = ERROR_SUCCESS;
-    
-    srs_assert(uri != NULL);
-    
-    uint64_t body_left = http_header.content_length - body_received;
-    
-    if (body_left <= 0) {
-        return ret;
-    }
-    
-    if (response != NULL) {
-        char buf[SRS_HTTP_BODY_BUFFER];
-        
-        return parse_response_body_data(
-            uri, skt, response, (size_t)body_left, 
-            (const void*)buf, (size_t)SRS_HTTP_BODY_BUFFER
-        );
-    } else {
-        // if ignore response, use shared fast memory.
-        static char buf[SRS_HTTP_BODY_BUFFER];
-        
-        return parse_response_body_data(
-            uri, skt, response, (size_t)body_left, 
-            (const void*)buf, (size_t)SRS_HTTP_BODY_BUFFER
-        );
-    }
-    
-    return ret;
-}
-
-int SrsHttpClient::parse_response_body_data(SrsHttpUri* uri, SrsSocket* skt, std::string* response, size_t body_left, const void* buf, size_t size)
-{
-    int ret = ERROR_SUCCESS;
-    
-    srs_assert(uri != NULL);
-    
-    while (body_left > 0) {
-        ssize_t nread;
-        int size_to_read = srs_min(size, body_left);
-        if ((ret = skt->read(buf, size_to_read, &nread)) != ERROR_SUCCESS) {
-            srs_error("read header from server failed. ret=%d", ret);
-            return ret;
-        }
-        
-        if (response != NULL && nread > 0) {
-            response->append((char*)buf, nread);
-        }
-        
-        body_left -= nread;
-        srs_info("read url(%s) content partial %"PRId64"/%"PRId64"", 
-            uri->get_url(), http_header.content_length - body_left, http_header.content_length);
-    }
-    
-    return ret;
-}
-
-int SrsHttpClient::on_headers_complete(http_parser* parser)
-{
-    SrsHttpClient* obj = (SrsHttpClient*)parser->data;
-    obj->complete_header(parser);
-    
-    // see http_parser.c:1570, return 1 to skip body.
-    return 1;
-}
-
-void SrsHttpClient::complete_header(http_parser* parser)
-{
-    // save the parser status when header parse completed.
-    memcpy(&http_header, parser, sizeof(http_header));
-}
-
 SrsHttpHooks::SrsHttpHooks()
 {
 }

@@ -36,6 +36,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 class SrsHttpUri;
 class SrsSocket;
 class SrsRequest;
+class SrsHttpParser;
 
 #include <srs_app_st.hpp>
 
@@ -47,8 +48,7 @@ class SrsHttpClient
 private:
     bool connected;
     st_netfd_t stfd;
-private:
-    http_parser http_header;
+    SrsHttpParser* parser;
 public:
     SrsHttpClient();
     virtual ~SrsHttpClient();
@@ -62,14 +62,6 @@ public:
 private:
     virtual void disconnect();
     virtual int connect(SrsHttpUri* uri);
-private:
-    virtual int parse_response(SrsHttpUri* uri, SrsSocket* skt, std::string* response);
-    virtual int parse_response_header(SrsSocket* skt, std::string* response, int& body_received);
-    virtual int parse_response_body(SrsHttpUri* uri, SrsSocket* skt, std::string* response, int body_received);
-    virtual int parse_response_body_data(SrsHttpUri* uri, SrsSocket* skt, std::string* response, size_t body_left, const void* buf, size_t size);
-private:
-    static int on_headers_complete(http_parser* parser);
-    virtual void complete_header(http_parser* parser);
 };
 
 /**