leviathan
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webserver
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master
Volker Birk 3 years ago
parent ec18185788
commit 32211d5b48
3 changed files with 61 additions and 14 deletions
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38
test_webserver.cc
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@ -5,10 +5,44 @@
int main()
{
std::cout << "starting webserver\n";
std::cout << "serving http://127.0.0.1:8080/test.html\n";
pEp::Webserver web{net::ip::address::from_string("127.0.0.1"), 8080, "htdocs"};
std::cout << "listening on localhost.8080\n";
std::cout << "adding handler for http://127.0.0.1:8080/handler/sample\n";
web.add_url_handler("/handler/(?<name>\\w+)",
[](boost::cmatch m, pEp::Webserver::request& req)->pEp::Webserver::response* {
pEp::Webserver::response *res = new pEp::Webserver::response;
// https://www.boost.org/doc/libs/1_73_0/libs/beast/doc/html/beast/ref/boost__beast__http__response.html
res->set(http::field::content_type, "text/json; charset=utf-8");
res->keep_alive(req.keep_alive());
res->body() =
"{"
"\"Herausgeber\": \"Xema\","
"\"Nummer\": \"1234-5678-9012-3456\","
"\"Deckung\": 2e+6,"
"\"Waehrung\": \"EURO\","
"\"Inhaber\":"
"{"
"\"Name\": \"Mustermann\","
"\"Vorname\": \"Max\","
"\"maennlich\": true,"
"\"Hobbys\": [\"Reiten\", \"Golfen\", \"Lesen\"],"
"\"Alter\": 42,"
"\"Kinder\": [],"
"\"Partner\": null"
"}"
"}";
res->prepare_payload();
return res;
}
);
web.run();
return 0;
}

35
webserver.cc
Unescape View File

@ -59,7 +59,7 @@ void Webserver::remove_url_handler(std::string url_regex) {
void Webserver::deliver_status(tcp::socket *socket, Webserver::request req, http::status status)
{
http::response< http::string_body > res{status, req.version()};
res.set(http::field::content_type, "text/html");
res.set(http::field::content_type, "text/html; charset=utf-8");
res.keep_alive(req.keep_alive());
std::stringstream s;
s << "<html><body>" << int(status) << " " << status << "</html></body>";
@ -75,11 +75,7 @@ void Webserver::deliver_file(tcp::socket *socket, Webserver::request req)
{
static boost::regex file{"/([\\w\\d]{1,100}\\.[\\w\\d]{1,4})"};
boost::cmatch m;
// there's a strange bug without this string variable d
// req.target().data() may end with '\x10'
std::string d = req.target().data();
if (d.back() == '\x10')
d.pop_back();
std::string d{req.target().data(), req.target().length()};
if (boost::regex_match(d.c_str(), m, file)) {
fs::path p{_doc_root};
p /= m[1];
@ -110,12 +106,13 @@ void Webserver::deliver_file(tcp::socket *socket, Webserver::request req)
}
}
Webserver::handler_t Webserver::find_handler(request& r, boost::cmatch& m)
Webserver::handler_t Webserver::find_handler(request& req, boost::cmatch& m)
{
std::lock_guard< std::mutex > lock(_mtx);
for (auto it=_urls.begin(); it!=_urls.end(); ++it) {
if (boost::regex_match(r.target().data(), m, it->second.regex))
std::string d{req.target().data(), req.target().length()};
if (boost::regex_match(d.c_str(), m, it->second.regex))
return it->second.handler;
}
@ -159,9 +156,25 @@ void Webserver::do_session(tcp::socket *socket)
}
break;
case http::verb::get:
deliver_file(socket, req);
break;
case http::verb::get: {
boost::cmatch m;
Webserver::handler_t handler = find_handler(req, m);
if (handler) {
Webserver::response *res = handler(m, req);
if (!res) {
deliver_status(socket, req, http::status::not_found);
}
else {
http::write(*socket, *res, ec);
delete res;
}
}
else {
deliver_file(socket, req);
}
}
break;
default:
deliver_status(socket, req, http::status::method_not_allowed);

2
webserver.hh
Unescape View File

@ -60,7 +60,7 @@ namespace pEp {
protected:
void deliver_status(tcp::socket *socket, request req, http::status status);
void deliver_file(tcp::socket *socket, request req);
handler_t find_handler(request& r, boost::cmatch& m);
handler_t find_handler(request& req, boost::cmatch& m);
void do_session(tcp::socket *socket);
};
};

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