Method readHeader

lib_acl_cpp/src/http/HttpServletRequest.cpp:779–931

// Content-Type: application/octet-stream

bool HttpServletRequest::readHeader(string* method_s)
{
	acl_assert(readHeaderCalled_ == false);
	readHeaderCalled_ = true;

	const char* method;

	if (cgi_mode_) {
		const char* ptr = acl_getenv("CONTENT_TYPE");
		if (ptr && *ptr) {
			content_type_.parse(ptr);
		}

		// �����Ǻ��� method����Ϊ acl_getenv �ڲ����ڴ����õ�
		// ���ֲ߳̾����������ڴ�����ͬһ�߳��лᱻ�ظ�ʹ�ã�����
		// ���� method ���Ա�֤ method ����������Ĺ���ȷ������
		// �����󷽷�
		method = acl_getenv("REQUEST_METHOD");
	} else {
		client_ = new (dbuf_->dbuf_alloc(sizeof(http_client)))
			http_client(&stream_, false, true);
		if (!client_->read_head()) {
			req_error_ = HTTP_REQ_ERR_IO;
			return false;
		}

		method = client_->request_method();
		const char* ptr = client_->header_value("Content-Type");
		if (ptr && *ptr) {
			content_type_.parse(ptr);
		}
	}

	if (method == NULL || *method == 0) {
		req_error_ = HTTP_REQ_ERR_METHOD;
		logger_error("method null");
		return false;
	}

	// �����ַ������͵����󷽷�
	method_s->copy(method);

	if (strcasecmp(method, "GET") == 0) {
		method_ = HTTP_METHOD_GET;
	} else if (strcasecmp(method, "POST") == 0) {
		method_ = HTTP_METHOD_POST;
	} else if (strcasecmp(method, "PUT") == 0) {
		method_ = HTTP_METHOD_PUT;
	} else if (strcasecmp(method, "CONNECT") == 0) {
		method_ = HTTP_METHOD_CONNECT;
	} else if (strcasecmp(method, "PURGE") == 0) {
		method_ = HTTP_METHOD_PURGE;
	} else if (strcasecmp(method, "DELETE") == 0) {
		method_ = HTTP_METHOD_DELETE;
	} else if (strcasecmp(method, "HEAD") == 0) {
		method_ = HTTP_METHOD_HEAD;
	}else if (strcasecmp(method, "OPTIONS") == 0) {
		method_ = HTTP_METHOD_OPTION;