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expresscpp/src/expresscpp.cpp at master · Dmdv/expresscpp · GitHub
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#
include
"
expresscpp/expresscpp.hpp
"
#
include
<
algorithm
>
#
include
<
condition_variable
>
#
include
<
cstdlib
>
#
include
<
functional
>
#
include
<
iostream
>
#
include
<
memory
>
#
include
<
mutex
>
#
include
<
string
>
#
include
<
thread
>
#
include
<
vector
>
#
include
"
expresscpp/console.hpp
"
#
include
"
expresscpp/impl/listener.hpp
"
#
include
"
expresscpp/impl/routing_stack.hpp
"
#
include
"
expresscpp/impl/session.hpp
"
#
include
"
expresscpp/route.hpp
"
#
include
"
nlohmann/json.hpp
"
namespace
expresscpp
{
ExpressCpp::ExpressCpp
() {
Init
();
}
ExpressCpp::~ExpressCpp
() {
if
(listener_) {
listener_->
Stop
();
}
Console::Debug
(
"
ExpressCpp destroyed
"
);
}
void
ExpressCpp::Error
(
handler_wecn_t
handler) {
error_handler_ = handler;
Console::Debug
(
"
error handler registered
"
);
error_handler_registered_ =
true
;
}
void
ExpressCpp::Use
(
handler_wn_t
handler) {
Console::Debug
(
"
using handler for all paths
"
);
router_->
Use
(handler);
}
void
ExpressCpp::Use
(std::string_view registered_path,
handler_t
handler) {
(
void
)registered_path;
(
void
)handler;
//
RegisterPath(registered_path, HttpMethod::All, handler);
throw
std::runtime_error
(
"
not implemented yet
"
);
}
void
ExpressCpp::Use
(std::string_view registered_path,
handler_wn_t
handler) {
router_->
RegisterPath
(registered_path, HttpMethod::All, handler);
}
void
ExpressCpp::Use
(std::string_view registered_path, RouterPtr router) {
Console::Debug
(
fmt::format
(
R"(
adding router "{}" to path "{}"
)"
, router->
GetName
(), registered_path));
router_->
Use
(registered_path, router);
}
Router&
ExpressCpp::Use
(std::string_view path) {
auto
router =
GetRouter
();
router_->
Use
(path, router);
return
*router;
}
ExpressCpp&
ExpressCpp::Listen
(
const
uint16_t
port,
ready_fn_cb_error_code_t
callback) {
std::error_code ec;
if
(listening_) {
Console::Error
(
"
already listening
"
);
ec =
std::make_error_code
(std::errc::already_connected);
callback
(ec);
return
*
this
;
}
const
std::string ip_addr =
"
0.0.0.0
"
;
//
Create and launch a listening port
listener_ = std::make_shared<Listener>(ip_addr, port,
this
, [&](
auto
listen_ec) {
if
(listen_ec) {
ec = listen_ec;
return
;
}
});
if
(ec) {
callback
(ec);
return
*
this
;
}
listener_->
run
();
listening_ =
true
;
listener_->
launch_threads
();
callback
(ec);
return
*
this
;
}
void
ExpressCpp::Run
() {
std::unique_lock<std::mutex>
lock
(running_mtx);
while
(!finished_) {
running_cv.
wait
(lock);
}
}
void
ExpressCpp::Stop
() {
std::unique_lock<std::mutex>
lock
(running_mtx);
finished_ =
true
;
running_cv.
notify_all
();
}
RouterPtr
ExpressCpp::GetRouter
()
const
{
Console::Debug
(
"
getting a router
"
);
auto
r = std::make_shared<Router>();
return
r;
}
RouterPtr
ExpressCpp::GetRouter
(std::string_view name)
const
{
Console::Debug
(
fmt::format
(
"
getting a router{}
"
, name));
auto
r = std::make_shared<Router>(name);
return
r;
}
void
ExpressCpp::HandleRequest
(
request_t
req,
response_t
res, std::function<
void
()> callback) {
assert
(req !=
nullptr
);
assert
(res !=
nullptr
);
try
{
if
(callback ==
nullptr
) {
callback = []() {
//
TODO(gocarlos): print here the callstack...
Console::Error
(
"
ERROR
"
);
};
}
if
(router_ ==
nullptr
) {
Console::Error
(
"
no routes defined on app
"
);
callback
();
return
;
}
Console::Debug
(
fmt::format
(
R"(
handling request: "{}" "{}"
)"
,
getHttpMethodName
(req->
getMethod
()), req->
getPath
()));
router_->
HandleRequest
(req, res);
}
catch
(...) {
auto
eptr =
std::current_exception
();
if
(error_handler_registered_) {
expresscpp::NextRouter next;
auto
ec =
std::make_error_code
(std::errc::bad_message);
error_handler_
(ec, req, res, next);
}
else
{
std::rethrow_exception
(eptr);
}
}
}
std::vector<RoutingStack>
ExpressCpp::Stack
()
const
{
std::vector<RoutingStack> routing_stack;
for
(
const
auto
& l : router_->
stack
()) {
//
if route is nullptr -> this means it is a middleware
if
(l->
GetRoute
() !=
nullptr
) {
for
(
const
auto
& ll : l->
GetRoute
()->
stack_
) {
Console::Debug
(
fmt::format
(
R"(
registered paths: "{}" "{}"
)"
, l->
GetRoute
()->
GetPath
(),
getHttpMethodName
(ll->
GetMethod
())));
RoutingStack rs{ l->
GetRoute
()->
GetPath
().
data
(), ll->
GetMethod
()};
routing_stack.
push_back
(rs);
}
}
else
{
RoutingStack rs{l->
GetPath
().
data
(), l->
GetMethod
()};
routing_stack.
push_back
(rs);
}
}
return
routing_stack;
}
void
ExpressCpp::Init
() {
Console::Debug
(
"
ExpressCpp created
"
);
router_ = std::make_unique<Router>(
"
base router
"
);
finished_ =
false
;
}
}
//
namespace expresscpp
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