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#pragma once
#include <memory>
#include <optional>
#include <string>
#include <inja.hpp>
#include <mw/url.hpp>
#include <mw/http_server.hpp>
#include <mw/error.hpp>
#include <mw/auth.hpp>
#include "data.hpp"
#include "config.hpp"
class App : public mw::HTTPServer
{
public:
using Request = mw::HTTPServer::Request;
using Response = mw::HTTPServer::Response;
App() = delete;
App(const Configuration& conf,
std::unique_ptr<DataSourceInterface> data_source,
std::unique_ptr<mw::AuthInterface> openid_auth);
std::string urlFor(const std::string& name, const std::string& arg="")
const;
private:
void setup() override;
struct SessionValidation
{
enum { VALID, REFRESHED, INVALID } status;
mw::UserInfo user;
mw::Tokens new_tokens;
static SessionValidation valid(mw::UserInfo&& user_info)
{
return {VALID, user_info, {}};
}
static SessionValidation refreshed(mw::UserInfo&& user_info, mw::Tokens&& tokens)
{
return {REFRESHED, user_info, tokens};
}
static SessionValidation invalid()
{
return {INVALID, {}, {}};
}
};
mw::E<SessionValidation> validateSession(const Request& req) const;
// Query the auth module for the status of the session. If there
// is no session or it fails to query the auth module, set the
// status and body in “res” accordingly, and return nullopt. In
// this case if this function does return a value, it would never
// be an invalid session.
//
// If “allow_error_and_invalid” is true, failure to query and
// invalid session are considered ok, and no status and body would
// be set in “res”. In this case this function just returns an
// invalid session.
std::optional<SessionValidation> prepareSession(
const Request& req, Response& res,
bool allow_error_and_invalid=false) const;
// This gives a path, optionally with the name of an argument,
// that is suitable to bind to a URL handler. For example,
// supposed the URL of the blog post with ID 1 is
// “http://some.domain/blog/p/1”. Calling “getPath("post", "id")”
// would give “/blog/p/:id”. This uses urlFor(), and therefore
// requires that the URL is mapped correctly in that function.
std::string getPath(const std::string& name, const std::string& arg_name="")
const;
Configuration config;
mw::URL base_url;
inja::Environment templates;
std::unique_ptr<DataSourceInterface> data;
std::unique_ptr<mw::AuthInterface> auth;
};
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