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Resolve #839

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yhirose 2021-01-23 13:33:27 -05:00
parent 0308d60cb2
commit 68d1281759
2 changed files with 24 additions and 12 deletions
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32
httplib.h
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@ -597,9 +597,17 @@ inline void default_socket_options(socket_t sock) {
class Server { class Server {
public: public:
using Handler = std::function<void(const Request &, Response &)>; using Handler = std::function<void(const Request &, Response &)>;
using HandlerWithReturn = std::function<bool(const Request &, Response &)>;
enum class HandlerResponse {
Handled,
Unhandled,
};
using HandlerWithResponse =
std::function<HandlerResponse(const Request &, Response &)>;
using HandlerWithContentReader = std::function<void( using HandlerWithContentReader = std::function<void(
const Request &, Response &, const ContentReader &content_reader)>; const Request &, Response &, const ContentReader &content_reader)>;
using Expect100ContinueHandler = using Expect100ContinueHandler =
std::function<int(const Request &, Response &)>; std::function<int(const Request &, Response &)>;
@ -642,9 +650,9 @@ public:
const char *mime); const char *mime);
Server &set_file_request_handler(Handler handler); Server &set_file_request_handler(Handler handler);
Server &set_error_handler(HandlerWithReturn handler); Server &set_error_handler(HandlerWithResponse handler);
Server &set_error_handler(Handler handler); Server &set_error_handler(Handler handler);
Server &set_pre_routing_handler(HandlerWithReturn handler); Server &set_pre_routing_handler(HandlerWithResponse handler);
Server &set_post_routing_handler(Handler handler); Server &set_post_routing_handler(Handler handler);
Server &set_expect_100_continue_handler(Expect100ContinueHandler handler); Server &set_expect_100_continue_handler(Expect100ContinueHandler handler);
@ -753,8 +761,8 @@ private:
Handlers delete_handlers_; Handlers delete_handlers_;
HandlersForContentReader delete_handlers_for_content_reader_; HandlersForContentReader delete_handlers_for_content_reader_;
Handlers options_handlers_; Handlers options_handlers_;
HandlerWithReturn error_handler_; HandlerWithResponse error_handler_;
HandlerWithReturn pre_routing_handler_; HandlerWithResponse pre_routing_handler_;
Handler post_routing_handler_; Handler post_routing_handler_;
Logger logger_; Logger logger_;
Expect100ContinueHandler expect_100_continue_handler_; Expect100ContinueHandler expect_100_continue_handler_;
@ -4260,7 +4268,7 @@ inline Server &Server::set_file_request_handler(Handler handler) {
return *this; return *this;
} }
inline Server &Server::set_error_handler(HandlerWithReturn handler) { inline Server &Server::set_error_handler(HandlerWithResponse handler) {
error_handler_ = std::move(handler); error_handler_ = std::move(handler);
return *this; return *this;
} }
@ -4268,12 +4276,12 @@ inline Server &Server::set_error_handler(HandlerWithReturn handler) {
inline Server &Server::set_error_handler(Handler handler) { inline Server &Server::set_error_handler(Handler handler) {
error_handler_ = [handler](const Request &req, Response &res) { error_handler_ = [handler](const Request &req, Response &res) {
handler(req, res); handler(req, res);
return true; return HandlerResponse::Handled;
}; };
return *this; return *this;
} }
inline Server &Server::set_pre_routing_handler(HandlerWithReturn handler) { inline Server &Server::set_pre_routing_handler(HandlerWithResponse handler) {
pre_routing_handler_ = std::move(handler); pre_routing_handler_ = std::move(handler);
return *this; return *this;
} }
@ -4411,7 +4419,8 @@ inline bool Server::write_response_core(Stream &strm, bool close_connection,
bool need_apply_ranges) { bool need_apply_ranges) {
assert(res.status != -1); assert(res.status != -1);
if (400 <= res.status && error_handler_ && error_handler_(req, res)) { if (400 <= res.status && error_handler_ &&
error_handler_(req, res) == HandlerResponse::Handled) {
need_apply_ranges = true; need_apply_ranges = true;
} }
@ -4748,7 +4757,10 @@ inline bool Server::listen_internal() {
} }
inline bool Server::routing(Request &req, Response &res, Stream &strm) { inline bool Server::routing(Request &req, Response &res, Stream &strm) {
if (pre_routing_handler_ && pre_routing_handler_(req, res)) { return true; } if (pre_routing_handler_ &&
pre_routing_handler_(req, res) == HandlerResponse::Handled) {
return true;
}
// File handler // File handler
bool is_head_request = req.method == "HEAD"; bool is_head_request = req.method == "HEAD";

4
test/test.cc
View file

@ -1009,9 +1009,9 @@ TEST(RoutingHandlerTest, PreRoutingHandler) {
if (req.path == "/routing_handler") { if (req.path == "/routing_handler") {
res.set_header("PRE_ROUTING", "on"); res.set_header("PRE_ROUTING", "on");
res.set_content("Routing Handler", "text/plain"); res.set_content("Routing Handler", "text/plain");
return true; return httplib::Server::HandlerResponse::Handled;
} }
return false; return httplib::Server::HandlerResponse::Unhandled;
}); });
svr.set_error_handler([](const Request & /*req*/, Response &res) { svr.set_error_handler([](const Request & /*req*/, Response &res) {