http客户端支持302跳转

修复HttpRequestSplitter可能内存越界的bug

src/Http/HttpClient.cpp

@@ -148,6 +148,17 @@ void HttpClient::onErr(const SockException &ex) {
 
 int64_t HttpClient::onRecvHeader(const char *data, uint64_t len) {
     _parser.Parse(data);
+    if(_parser.Url() == "302" || _parser.Url() == "301"){
+        auto newUrl = _parser["Location"];
+        if(newUrl.empty()){
+            shutdown(SockException(Err_shutdown,"未找到Location字段(跳转url)"));
+            return 0;
+        }
+        HttpClient::sendRequest(newUrl,_fTimeOutSec);
+        HttpRequestSplitter::reset();
+        return 0;
+    }
+
     checkCookie(_parser.getValues());
     _totalBodySize = onResponseHeader(_parser.Url(), _parser.getValues());
 

src/Http/HttpRequestSplitter.cpp

@@ -59,24 +59,23 @@ void HttpRequestSplitter::input(const char *data,uint64_t len) {
         //_content_len == 0，这是请求头
         const char *header_ptr = ptr;
         int64_t header_size = index - ptr;
-
         ptr = index;
         _remain_data_size = len - (ptr - data);
-
         _content_len = onRecvHeader(header_ptr, header_size);
     }
 
-    /*
-     * 恢复末尾字节
-     */
-    tail_ref = tail_tmp;
-
     if(_remain_data_size <= 0){
         //没有剩余数据，清空缓存
         _remain_data.clear();
         return;
     }
 
+    /*
+     * 恢复末尾字节
+     * 移动到这来，目的是防止HttpRequestSplitter::reset()导致内存失效
+     */
+    tail_ref = tail_tmp;
+
     if(_content_len == 0){
         //尚未找到http头，缓存定位到剩余数据部分
         string str(ptr,_remain_data_size);

src/Rtsp/RtspPlayer.cpp

@@ -198,7 +198,7 @@ void RtspPlayer::handleResDESCRIBE(const Parser& parser) {
 		sendDescribe();
 		return;
 	}
-	if(parser.Url() == "302"){
+	if(parser.Url() == "302" || parser.Url() == "301"){
 		auto newUrl = parser["Location"];
 		if(newUrl.empty()){
 			throw std::runtime_error("未找到Location字段(跳转url)");