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#pragma once
#include <filesystem>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>
// URL path, not FS
struct Path
{
std::string requested; // the requested path
// mandatory entries: "plugin", "target", others are optional
std::unordered_map<std::string, std::string> params; // what to serve, e.g. which filesystem path (target), and which plugin
std::unordered_map<std::string, std::string> auth; // optional
};
struct Site
{
// std::string name; is the index in the m_sites map
std::unordered_set<std::string> hosts;
std::vector<Path> paths;
std::filesystem::path cert_path;
std::filesystem::path key_path;
};
enum class SocketProtocol
{
HTTP,
HTTPS
};
struct Socket
{
std::string address;
std::string port;
SocketProtocol protocol;
std::unordered_set<std::string> serve_sites; // if empty, automatically expand to all configured sites
std::unordered_map <std::string, Site*> host_lut; // look up table for fast server decision in GetPath()
};
class Config
{
const std::filesystem::path default_filename{"/etc/webserver.conf"};
void readConfigfile(const std::filesystem::path& filename);
void expand_socket_sites();
void validate();
void create_look_up_table();
std::string m_user;
std::string m_group;
int m_threads;
std::filesystem::path m_statistics_path;
std::vector<std::string> m_plugin_directories;
std::unordered_map<std::string, Site> m_sites;
std::vector<Socket> m_sockets;
public:
Config(const std::filesystem::path& filename);
// Data getters
std::string User() const;
std::string Group() const;
int Threads() const;
std::filesystem::path statistics_path() const;
const std::vector<std::string>& PluginDirectories() const;
const std::unordered_map<std::string, Site>& Sites() const;
const std::vector<Socket>& Sockets() const;
//
// secondary calculation functions
//
const Path& GetPath(const Socket& socket, const std::string& requested_host, const std::string& requested_path) const;
// return true iff plugin "name" is mentioned in config
bool PluginIsConfigured(const std::string& name) const;
void dump() const;
};
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