Refine SrsHttpUri.get_uri_field, without depends on http parser.

trunk/src/protocol/srs_http_stack.cpp

@@ -3094,8 +3094,11 @@ string SrsHttpUri::get_query()
     return query;
 }
 
-string SrsHttpUri::get_uri_field(string uri, http_parser_url* hp_u, http_parser_url_fields field)
+string SrsHttpUri::get_uri_field(string uri, void* php_u, int ifield)
 {
+	http_parser_url* hp_u = (http_parser_url*)php_u;
+	http_parser_url_fields field = (http_parser_url_fields)ifield;
+
     if((hp_u->field_set & (1 << field)) == 0){
         return "";
     }

trunk/src/protocol/srs_http_stack.hpp

@@ -835,7 +835,7 @@ public:
 private:
     // Get the parsed url field.
     // @return return empty string if not set.
-    virtual std::string get_uri_field(std::string uri, http_parser_url* hp_u, http_parser_url_fields field);
+    virtual std::string get_uri_field(std::string uri, void* hp_u, int field);
 };
 
 #endif