support http methods, support js crossdomain request

@@ -46,7 +46,8 @@ namespace srs
     // HTTP/1.1 defines the sequence CR LF as the end-of-line marker for all
     // protocol elements except the entity-body (see appendix 19.3 for
     // tolerant applications). 
-    #define __CRLF __CR""__LF // 0x0D0A
+    #define __CRLF "\r\n" // 0x0D0A
+    #define __CRLFCRLF "\r\n\r\n" // 0x0D0A0D0A
 };
 
 #ifdef SRS_HTTP_CALLBACK

@@ -23,22 +23,52 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #include <srs_app_http_conn.hpp>
 
+#include <sstream>
+using namespace std;
+
 #include <srs_kernel_log.hpp>
 #include <srs_kernel_error.hpp>
 #include <srs_app_socket.hpp>
+#include <srs_app_http.hpp>
+#include <srs_kernel_buffer.hpp>
 
 #define SRS_HTTP_HEADER_BUFFER        1024
 
+SrsHttpRequest::SrsHttpRequest()
+{
+    body = new SrsBuffer();
+    state = SrsHttpParseStateInit;
+}
+
+SrsHttpRequest::~SrsHttpRequest()
+{
+    srs_freep(body);
+}
+
+void SrsHttpRequest::reset()
+{
+    state = SrsHttpParseStateInit;
+    body->clear();
+    url = "";
+}
+
+bool SrsHttpRequest::is_complete()
+{
+    return state == SrsHttpParseStateComplete;
+}
+
 SrsHttpConn::SrsHttpConn(SrsServer* srs_server, st_netfd_t client_stfd) 
     : SrsConnection(srs_server, client_stfd)
 {
+    req = new SrsHttpRequest();
 }
 
-SrsHttpConn::~SrsHttpConn() 
+SrsHttpConn::~SrsHttpConn()
 {
+    srs_freep(req);
 }
 
-int SrsHttpConn::do_cycle() 
+int SrsHttpConn::do_cycle()
 {
     int ret = ERROR_SUCCESS;
     
@@ -69,7 +99,7 @@ int SrsHttpConn::do_cycle()
     SrsSocket skt(stfd);
     
     for (;;) {
-        if ((ret = process_request(&skt, &parser, &settings)) != ERROR_SUCCESS) {
+        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);
             }
@@ -80,12 +110,12 @@ int SrsHttpConn::do_cycle()
     return ret;
 }
 
-int SrsHttpConn::process_request(SrsSocket* skt, http_parser* parser, http_parser_settings* settings)
+int SrsHttpConn::parse_request(SrsSocket* skt, http_parser* parser, http_parser_settings* settings)
 {
     int ret = ERROR_SUCCESS;
 
     // reset response header.
-    http_header = NULL;
+    req->reset();
     
     // parser header.
     char buf[SRS_HTTP_HEADER_BUFFER];
@@ -102,13 +132,11 @@ int SrsHttpConn::process_request(SrsSocket* skt, http_parser* parser, http_parse
         srs_info("read_size=%d, nparsed=%d", (int)nread, (int)nparsed);
 
         // check header size.
-        if (http_header) {
-            int nb_body = nread - nparsed;
-            
-            srs_info("http header parsed, size=%d, content-length=%"PRId64", nb_body=%d", 
-                http_header->nread, http_header->content_length, nb_body);
+        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);
             
-            return complete_header(skt, http_header, buf + nparsed, nb_body);
+            return process_request(skt);
         }
         
         if (nparsed != nread) {
@@ -121,17 +149,38 @@ int SrsHttpConn::process_request(SrsSocket* skt, http_parser* parser, http_parse
     return ret;
 }
 
-int SrsHttpConn::complete_header(SrsSocket* skt, http_parser* header, char* body, int nb_body) 
+int SrsHttpConn::process_request(SrsSocket* skt) 
 {
     int ret = ERROR_SUCCESS;
     
-    char data[] = "HTTP/1.1 200 OK\r\n"
-        "Server: SRS/"RTMP_SIG_SRS_VERSION"\r\n"
-        "Content-Length: 15\r\n"
-        "Content-Type: text/html;charset=utf-8\r\n\r\n"
-        "hello http/1.1~";
+    if (req->header.method == HTTP_OPTIONS) {
+        char data[] = "HTTP/1.1 200 OK" __CRLF
+            "Content-Length: 0"__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
+            "";
+        return skt->write(data, sizeof(data), NULL);
+    } else {
+        std::string tilte = "SRS/"RTMP_SIG_SRS_VERSION;
+        tilte += " hello http/1.1~\n";
         
-    skt->write(data, sizeof(data), NULL);
+        std::stringstream ss;
+        ss << "HTTP/1.1 200 OK " << __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())
+            << "";
+        return skt->write(ss.str().c_str(), ss.str().length(), NULL);
+    }
     
     return ret;
 }
@@ -139,16 +188,19 @@ int SrsHttpConn::complete_header(SrsSocket* skt, http_parser* header, char* body
 int SrsHttpConn::on_message_begin(http_parser* parser)
 {
     SrsHttpConn* obj = (SrsHttpConn*)parser->data;
-    (void)obj;
-    srs_trace("***MESSAGE BEGIN***");
+    obj->req->state = SrsHttpParseStateStart;
+    
+    srs_info("***MESSAGE BEGIN***");
+    
     return 0;
 }
 
 int SrsHttpConn::on_headers_complete(http_parser* parser)
 {
     SrsHttpConn* obj = (SrsHttpConn*)parser->data;
-    (void)obj;
-    srs_trace("***HEADERS COMPLETE***");
+    memcpy(&obj->req->header, parser, sizeof(http_parser));
+    
+    srs_info("***HEADERS COMPLETE***");
     
     // see http_parser.c:1570, return 1 to skip body.
     return 0;
@@ -157,41 +209,48 @@ int SrsHttpConn::on_headers_complete(http_parser* parser)
 int SrsHttpConn::on_message_complete(http_parser* parser)
 {
     SrsHttpConn* obj = (SrsHttpConn*)parser->data;
-    srs_trace("***MESSAGE COMPLETE***\n");
-    
     // save the parser when header parse completed.
-    obj->http_header = parser;
+    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;
-    (void)obj;
-    srs_trace("Method: %d, Url: %.*s", parser->method, (int)length, at);
+    
+    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)
+int SrsHttpConn::on_header_field(http_parser* /*parser*/, const char* at, size_t length)
 {
-    SrsHttpConn* obj = (SrsHttpConn*)parser->data;
-    (void)obj;
-    srs_trace("Header field: %.*s", (int)length, at);
+    srs_info("Header field: %.*s", (int)length, at);
     return 0;
 }
 
-int SrsHttpConn::on_header_value(http_parser* parser, const char* at, size_t length)
+int SrsHttpConn::on_header_value(http_parser* /*parser*/, const char* at, size_t length)
 {
-    SrsHttpConn* obj = (SrsHttpConn*)parser->data;
-    (void)obj;
-    srs_trace("Header value: %.*s", (int)length, at);
+    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;
-    (void)obj;
-    srs_trace("Body: %.*s", (int)length, at);
+    
+    if (length > 0) {
+        obj->req->body->append(at, (int)length);
+    }
+    
+    srs_info("Body: %.*s", (int)length, at);
+
     return 0;
 }

@@ -36,19 +36,41 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <http_parser.h>
 
 class SrsSocket;
+class SrsBuffer;
+
+enum SrsHttpParseState {
+    SrsHttpParseStateInit = 0, 
+    SrsHttpParseStateStart, 
+    SrsHttpParseStateComplete
+};
+
+class SrsHttpRequest
+{
+public:
+    std::string url;
+    http_parser header;
+    SrsBuffer* body;
+    SrsHttpParseState state;
+    
+    SrsHttpRequest();
+    virtual ~SrsHttpRequest();
+    
+    virtual void reset();
+    virtual bool is_complete();
+};
 
 class SrsHttpConn : public SrsConnection
 {
 private:
-    http_parser* http_header;
+    SrsHttpRequest* req;
 public:
     SrsHttpConn(SrsServer* srs_server, st_netfd_t client_stfd);
     virtual ~SrsHttpConn();
 protected:
     virtual int do_cycle();
 private:
-    virtual int process_request(SrsSocket* skt, http_parser* parser, http_parser_settings* settings);
-    virtual int complete_header(SrsSocket* skt, http_parser* header, char* body, int nb_body);
+    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);

@@ -49,18 +49,34 @@ int SrsBuffer::size()
     return (int)data.size();
 }
 
+bool SrsBuffer::empty()
+{
+    return size() <= 0;
+}
+
 char* SrsBuffer::bytes()
 {
     return &data.at(0);
 }
 
-void SrsBuffer::erase(int size)
+void SrsBuffer::erase(int _size)
+{
+    if (_size == size()) {
+        clear();
+        return;
+    }
+    
+    data.erase(data.begin(), data.begin() + _size);
+}
+
+void SrsBuffer::clear()
 {
-    data.erase(data.begin(), data.begin() + size);
+    data.clear();
 }
 
-void SrsBuffer::append(char* bytes, int size)
+void SrsBuffer::append(const char* bytes, int size)
 {
+    srs_assert(size > 0);
     data.insert(data.end(), bytes, bytes + size);
 }
 

@@ -59,10 +59,11 @@ public:
     virtual ~SrsBuffer();
 public:
     virtual int size();
+    virtual bool empty();
     virtual char* bytes();
     virtual void erase(int size);
-private:
-    virtual void append(char* bytes, int size);
+    virtual void clear();
+    virtual void append(const char* bytes, int size);
 public:
     virtual int ensure_buffer_bytes(ISrsBufferReader* skt, int required_size);
 };