完成HTTP解析请求侧解析基本流程

* 集成HTTP Parser，解析HTTP请求侧数据；
* 增加tfe_http.h中请求方法、应答状态的常量定义
* 变更tfe_http.h中HTTP头部标准定义，去掉非头部字段，增加TFE前缀避免冲突。

common/include/tfe_http.h

@@ -1,7 +1,89 @@
+#pragma once
 
 #include <tfe_future.h>
 #include <stdint.h>
 
+/* Copy from http_parser.h */
+#define HTTP_METHOD_MAP(XX)         \
+  XX(0,  DELETE,      DELETE)       \
+  XX(1,  GET,         GET)          \
+  XX(2,  HEAD,        HEAD)         \
+  XX(3,  POST,        POST)         \
+  XX(4,  PUT,         PUT)          \
+  /* pathological */                \
+  XX(5,  CONNECT,     CONNECT)      \
+  XX(6,  OPTIONS,     OPTIONS)      \
+  XX(7,  TRACE,       TRACE)        \
+  /* WebDAV */                      \
+  XX(8,  COPY,        COPY)         \
+  XX(9,  LOCK,        LOCK)         \
+  XX(10, MKCOL,       MKCOL)        \
+  XX(11, MOVE,        MOVE)         \
+  XX(12, PROPFIND,    PROPFIND)     \
+  XX(13, PROPPATCH,   PROPPATCH)    \
+  XX(14, SEARCH,      SEARCH)       \
+  XX(15, UNLOCK,      UNLOCK)       \
+  XX(16, BIND,        BIND)         \
+  XX(17, REBIND,      REBIND)       \
+  XX(18, UNBIND,      UNBIND)       \
+  XX(19, ACL,         ACL)          \
+  /* subversion */                  \
+  XX(20, REPORT,      REPORT)       \
+  XX(21, MKACTIVITY,  MKACTIVITY)   \
+  XX(22, CHECKOUT,    CHECKOUT)     \
+  XX(23, MERGE,       MERGE)        \
+  /* upnp */                        \
+  XX(24, MSEARCH,     M-SEARCH)     \
+  XX(25, NOTIFY,      NOTIFY)       \
+  XX(26, SUBSCRIBE,   SUBSCRIBE)    \
+  XX(27, UNSUBSCRIBE, UNSUBSCRIBE)  \
+  /* RFC-5789 */                    \
+  XX(28, PATCH,       PATCH)        \
+  XX(29, PURGE,       PURGE)        \
+  /* CalDAV */                      \
+  XX(30, MKCALENDAR,  MKCALENDAR)   \
+  /* RFC-2068, section 19.6.1.2 */  \
+  XX(31, LINK,        LINK)         \
+  XX(32, UNLINK,      UNLINK)       \
+  /* icecast */                     \
+  XX(33, SOURCE,      SOURCE)       \
+
+enum tfe_http_std_method
+{
+#define XX(num, name, string) TFE_HTTP_##name = num,
+	HTTP_METHOD_MAP(XX)
+#undef XX
+};
+
+enum tfe_http_std_field
+{
+	TFE_HTTP_UNKNOWN_FIELD = 0,
+	TFE_HTTP_HOST,
+	TFE_HTTP_REFERER,
+	TFE_HTTP_USER_AGENT,
+	TFE_HTTP_COOKIE,
+	TFE_HTTP_PROXY_AUTHORIZATION,
+	TFE_HTTP_AUTHORIZATION,
+	TFE_HTTP_LOCATION,
+	TFE_HTTP_SERVER,
+	TFE_HTTP_ETAG,
+	TFE_HTTP_DATE,
+	TFE_HTTP_TRAILER,
+	TFE_HTTP_TRANSFER_ENCODING,
+	TFE_HTTP_VIA,
+	TFE_HTTP_PRAGMA,
+	TFE_HTTP_CONNECTION,
+	TFE_HTTP_CONT_ENCODING,
+	TFE_HTTP_CONT_LANGUAGE,
+	TFE_HTTP_CONT_LOCATION,
+	TFE_HTTP_CONT_RANGE,
+	TFE_HTTP_CONT_LENGTH,
+	TFE_HTTP_CONT_TYPE,
+	TFE_HTTP_CONT_DISPOSITION,
+	TFE_HTTP_EXPIRES,
+	TFE_HTTP_ACCEPT_ENCODING,
+};
+
 struct tfe_http_req_spec
 {
 	int method;
@@ -10,11 +92,10 @@ struct tfe_http_req_spec
 	char * url; //uri+host
 	char * accept_encoding;
 };
+
 struct tfe_http_resp_spec
 {
 	int resp_code;
-	int major_version;    //HTTP/1.x or HTTP/ 2
-	int minor_version;    //HTTP 1.1 or 1.0
 	char * content_encoding;
 };
 
@@ -27,60 +108,28 @@ enum tfe_http_direction
 struct tfe_http_half
 {
 	enum tfe_http_direction direction;
+	short major_version;    //HTTP/1.x or HTTP/ 2
+	short minor_version;    //HTTP 1.1 or 1.0
+
 	union
 	{
 		struct tfe_http_req_spec req_spec;
 		struct tfe_http_resp_spec resp_spec;
 	};
 
-	size_t field_cnt;
+	unsigned int field_cnt;
 	uint64_t cont_len;
 	uint64_t cont_range_from;
 	uint64_t cont_range_to;
 	struct evbuffer * body;
-	void * fields;    //hide by protocol layer
 };
 
 struct tfe_http_session
 {
-	int session_sequence;//?
+	int session_id;//?
 	int major_version;//1:HTTP 1.x, 2:HTTP 2
 	struct tfe_http_half * req;
 	struct tfe_http_half * resp;//value is NULL before response received.
-	void * proto_spec;
-};
-
-enum tfe_http_std_field
-{
-	HTTP_UNKNOWN_FIELD = 0,
-	HTTP_MESSAGE_URL,
-	HTTP_URI,
-	HTTP_HOST,
-	HTTP_REFERER,
-	HTTP_USER_AGENT,
-	HTTP_COOKIE,
-	HTTP_PROXY_AUTHORIZATION,
-	HTTP_AUTHORIZATION,
-	HTTP_LOCATION,
-	HTTP_SERVER,
-	HTTP_ETAG,
-	HTTP_DATE,
-	HTTP_TRAILER,
-	HTTP_TRANSFER_ENCODING,
-	HTTP_VIA,
-	HTTP_PRAGMA,
-	HTTP_CONNECTION,
-	HTTP_CONT_ENCODING,
-	HTTP_CONT_LANGUAGE,
-	HTTP_CONT_LOCATION,
-	HTTP_CONT_RANGE,
-	HTTP_CONT_LENGTH,
-	HTTP_CONT_TYPE,
-	HTTP_CONT_DISPOSITION,
-	HTTP_CHARSET,
-	HTTP_EXPIRES,
-	HTTP_X_FLASH_VERSION,
-	HTTP_TRANSFER_LENGTH
 };
 
 struct http_field_name
@@ -149,7 +198,7 @@ enum tfe_bussiness_action
 
 //@param	event: bit AND of EV_HTTP_**
 //@param	body_frag: NULL for no body data.
-typedef tfe_bussiness_action (* http_read_func)(const struct tfe_stream * stream,
+typedef tfe_bussiness_action (* http_data_func)(const struct tfe_stream * stream,
 	const struct tfe_http_session * session, uint64_t event, struct evbuffer * body_frag, void ** pme);
 
 struct tfe_http_half * tfe_http_request_create(int major_version, int method, const char * uri, const char * host);