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#include "requesthandler.hh"
#include "unicode.hh"
#ifdef USE_WEBSERVER
RequestHandler::RequestHandler(Songs& songs):m_songs(songs)
{
}
RequestHandler::RequestHandler(std::string url, Songs& songs):m_listener(url),m_songs(songs)
{
m_listener.support(web::http::methods::GET, std::bind(&RequestHandler::Get, this, std::placeholders::_1));
m_listener.support(web::http::methods::PUT, std::bind(&RequestHandler::Put, this, std::placeholders::_1));
m_listener.support(web::http::methods::POST, std::bind(&RequestHandler::Post, this, std::placeholders::_1));
m_listener.support(web::http::methods::DEL, std::bind(&RequestHandler::Delete, this, std::placeholders::_1));
}
RequestHandler::~RequestHandler()
{
}
void RequestHandler::Error(pplx::task<void>& t)
{
try
{
t.get();
}
catch(...)
{
}
}
void RequestHandler::HandleFile(web::http::http_request request, std::string filePath) {
auto path = filePath != "" ? filePath : request.relative_uri().path();
auto fileName = path.substr(path.find_last_of("/\\") + 1);
std::string fileToSend = findFile(fileName).string();
concurrency::streams::fstream::open_istream(U(fileToSend), std::ios::in).then([=](concurrency::streams::istream is) {
std::string content_type = "";
if(path.find(".html") != std::string::npos) {
content_type = "text/html";
} else if(path.find(".js") != std::string::npos) {
content_type = "text/javascript";
} else if (path.find(".css") != std::string::npos) {
content_type = "text/css";
} else if (path.find(".png") != std::string::npos) {
content_type = "image/png";
} else if (path.find(".gif") != std::string::npos) {
content_type = "image/gif";
} else if (path.find(".ico") != std::string::npos) {
content_type = "image/x-icon";
}
request.reply(web::http::status_codes::OK, is, U(content_type)).then([](pplx::task<void> t) {
try {
t.get();
} catch(...){
//
}
});
}).then([=](pplx::task<void>t) {
try {
t.get();
} catch(...) {
request.reply(web::http::status_codes::InternalError,U("INTERNAL ERROR "));
}
});
}
void RequestHandler::Get(web::http::http_request request)
{
std::string content_type = "text/html";
auto uri = request.relative_uri().path();
if(request.relative_uri().query() != "") {
uri += "?" + request.relative_uri().query();
}
std::clog << "requesthandler/debug: path is: " << uri << std::endl;
auto path = request.relative_uri().path();
if (path == "/") {
HandleFile(request, findFile("index.html").string());
} else if (path == "/api/getDataBase.json") { //get database
m_songs.setFilter("");
if(request.relative_uri().query() == "sort=artist&order=ascending") {
m_songs.sortSpecificChange(2);
} else if(request.relative_uri().query() == "sort=artist&order=descending") {
m_songs.sortSpecificChange(2, true);
} else if(request.relative_uri().query() == "sort=title&order=ascending") {
m_songs.sortSpecificChange(1);
} else if(request.relative_uri().query() == "sort=title&order=descending") {
m_songs.sortSpecificChange(1, true);
} else if(request.relative_uri().query() == "sort=language&order=ascending") {
m_songs.sortSpecificChange(6);
} else if(request.relative_uri().query() == "sort=language&order=descending") {
m_songs.sortSpecificChange(6, true);
} else if(request.relative_uri().query() == "sort=edition&order=ascending") {
m_songs.sortSpecificChange(3);
} else if(request.relative_uri().query() == "sort=edition&order=descending") {
m_songs.sortSpecificChange(3, true);
}
web::json::value jsonRoot = SongsToJsonObject();
request.reply(web::http::status_codes::OK, jsonRoot);
return;
} else if(path == "/api/language") {
auto localeMap = GenerateLocaleDict();
web::json::value jsonRoot = web::json::value::object();
for (auto const &kv : localeMap) {
std::string key = kv.first;
//Hack to get an easy key value pair within the json object.
if(key == "Web interface by Niek Nooijens and Arjan Speiard, for full credits regarding Performous see /docs/Authors.txt"){
key = "Credits";
}
std::replace(key.begin(), key.end(), ' ','_');
key = UnicodeUtil::toLower(key);;
jsonRoot[key] = web::json::value(kv.second);
}
request.reply(web::http::status_codes::OK, jsonRoot);
return;
} else if(path == "/api/getCurrentPlaylist.json") {
Game* gm = Game::getSingletonPtr();
web::json::value jsonRoot = web::json::value::array();
auto i = 0;
for (auto const& song : gm->getCurrentPlayList().getList()) {
web::json::value songObject = web::json::value::object();
songObject["Title"] = web::json::value::string(song->title);
songObject["Artist"] = web::json::value::string(song->artist);
songObject["Edition"] = web::json::value::string(song->edition);
songObject["Language"] = web::json::value::string(song->language);
songObject["Creator"] = web::json::value::string(song->creator);
songObject["Duration"] = web::json::value(song->getDurationSeconds());
jsonRoot[i] = songObject;
i++;
}
request.reply(web::http::status_codes::OK, jsonRoot);
return;
} else if(path == "/api/getplaylistTimeout") {
request.reply(web::http::status_codes::OK, U(config["game/playlist_screen_timeout"].i()));
return;
} else {
HandleFile(request);
}
};
void RequestHandler::Post(web::http::http_request request)
{
Game* gm = Game::getSingletonPtr();
auto uri = request.relative_uri().path();
if(request.relative_uri().query() != "") {
uri += "?" + request.relative_uri().query();
}
std::clog << "requesthandler/debug: path is: " << uri << std::endl;
auto path = request.relative_uri().path();
web::json::value jsonPostBody = ExtractJsonFromRequest(request);
if(jsonPostBody == web::json::value::null()) {
request.reply(web::http::status_codes::BadRequest, "Post body is malformed. Please make a valid request.");
return;
}
if (path == "/api/add") {
m_songs.setFilter("");
std::shared_ptr<Song> songPointer = GetSongFromJSON(jsonPostBody);
if(!songPointer) {
request.reply(web::http::status_codes::NotFound, "Song \"" + jsonPostBody["Artist"].as_string() + " - " + jsonPostBody["Title"].as_string() + "\" was not found.");
return;
} else {
std::clog << "requesthandler/debug: Adding " << songPointer->artist << " - " << songPointer->title << " to the playlist " << std::endl;
gm->getCurrentPlayList().addSong(songPointer);
ScreenPlaylist* m_pp = dynamic_cast<ScreenPlaylist*>(gm->getScreen("Playlist"));
m_pp->triggerSongListUpdate();
request.reply(web::http::status_codes::OK, "success");
return;
}
} else if(path == "/api/remove") {
if(gm->getCurrentPlayList().isEmpty()) {
request.reply(web::http::status_codes::BadRequest, "Playlist is empty.");
return;
}
try {
auto songIdToDelete = jsonPostBody["songId"].as_integer();
if(songIdToDelete >= 0) {
gm->getCurrentPlayList().removeSong(songIdToDelete);
ScreenPlaylist* m_pp = dynamic_cast<ScreenPlaylist*>(gm->getScreen("Playlist"));
m_pp->triggerSongListUpdate();
request.reply(web::http::status_codes::OK, "success");
return;
} else {
request.reply(web::http::status_codes::BadRequest, "Can't remove songs from the playlist with a negative id \"" + std::to_string(songIdToDelete) +"\". Please make a valid request.");
return;
}
} catch(web::json::json_exception const & e) {
std::string str = std::string("JSON Exception: ") + e.what();
request.reply(web::http::status_codes::BadRequest, str);
return;
}
} else if(path == "/api/setposition") {
if(gm->getCurrentPlayList().isEmpty()) {
request.reply(web::http::status_codes::BadRequest, "Playlist is empty.");
return;
}
try {
auto songIdToMove = jsonPostBody["songId"].as_integer();
auto positionToMoveTo = jsonPostBody["position"].as_integer();
int sizeOfPlaylist = gm->getCurrentPlayList().getList().size();
if(songIdToMove < 0) {
request.reply(web::http::status_codes::BadRequest, "Can't move songs with a negative id \"" + std::to_string(songIdToMove) + "\". Please make a valid request.");
return;
}
if(positionToMoveTo < 0) {
request.reply(web::http::status_codes::BadRequest, "Can't move songs to a negative position \"" + std::to_string(positionToMoveTo) + "\". Please make a valid request.");
return;
}
if(songIdToMove > sizeOfPlaylist - 1) {
request.reply(web::http::status_codes::BadRequest, "Not gonna move the unknown song you've provided \"" + std::to_string(songIdToMove + 1) + "\". Please make a valid request.");
return;
}
if(positionToMoveTo <= sizeOfPlaylist - 1) {
gm->getCurrentPlayList().setPosition(songIdToMove,positionToMoveTo);
ScreenPlaylist* m_pp = dynamic_cast<ScreenPlaylist*>(gm->getScreen("Playlist"));
m_pp->triggerSongListUpdate();
request.reply(web::http::status_codes::OK, "success");
return;
} else {
request.reply(web::http::status_codes::BadRequest, "Not gonna move the song to \""+ std::to_string(positionToMoveTo + 1) + "\" since the list ain't that long. Please make a valid request.");
return;
}
} catch(web::json::json_exception const & e) {
std::string str = std::string("JSON Exception: ") + e.what();
request.reply(web::http::status_codes::BadRequest, str);
return;
}
} else if(path == "/api/search") {
auto query = jsonPostBody["query"].as_string();
m_songs.setFilter(query);
web::json::value jsonRoot = web::json::value::array();
for(int i = 0; i < m_songs.size(); i++) {
web::json::value songObject = web::json::value::object();
songObject["Title"] = web::json::value::string(m_songs[i]->title);
songObject["Artist"] = web::json::value::string(m_songs[i]->artist);
songObject["Edition"] = web::json::value::string(m_songs[i]->edition);
songObject["Language"] = web::json::value::string(m_songs[i]->language);
songObject["Creator"] = web::json::value::string(m_songs[i]->creator);
jsonRoot[i] = songObject;
}
request.reply(web::http::status_codes::OK, jsonRoot);
return;
} else {
request.reply(web::http::status_codes::NotFound, "The path \""+ path +"\" was not found.");
return;
}
};
void RequestHandler::Delete(web::http::http_request request)
{
request.reply(web::http::status_codes::OK);
};
void RequestHandler::Put(web::http::http_request request)
{
request.reply(web::http::status_codes::OK);
};
web::json::value RequestHandler::ExtractJsonFromRequest(web::http::http_request request) {
web::json::value jsonBody = web::json::value::null();
request.extract_json().then([&jsonBody](pplx::task<web::json::value> task)
{
try
{
jsonBody = task.get();
}
catch (web::json::json_exception const & e)
{
std::clog << "webserver/error: JSON exception was thrown \"" << e.what() << "\"." << std::endl;
}
}).wait();
return jsonBody;
}
web::json::value RequestHandler::SongsToJsonObject() {
web::json::value jsonRoot = web::json::value::array();
for (int i=0; i< m_songs.size(); i++) {
web::json::value songObject = web::json::value::object();
songObject["Title"] = web::json::value::string(m_songs[i]->title);
songObject["Artist"] = web::json::value::string(m_songs[i]->artist);
songObject["Edition"] = web::json::value::string(m_songs[i]->edition);
songObject["Language"] = web::json::value::string(m_songs[i]->language);
songObject["Creator"] = web::json::value::string(m_songs[i]->creator);
songObject["name"] = web::json::value::string(m_songs[i]->artist + " " + m_songs[i]->title);
jsonRoot[i] = songObject;
}
return jsonRoot;
}
std::shared_ptr<Song> RequestHandler::GetSongFromJSON(web::json::value jsonDoc) {
m_songs.setFilter("");
for(int i = 0; i< m_songs.size(); i++) {
if(m_songs[i]->title == jsonDoc["Title"].as_string() &&
m_songs[i]->artist == jsonDoc["Artist"].as_string() &&
m_songs[i]->edition == jsonDoc["Edition"].as_string() &&
m_songs[i]->language == jsonDoc["Language"].as_string() &&
m_songs[i]->creator == jsonDoc["Creator"].as_string() ) {
std::clog << "webserver/info: Found requested song." << std::endl;
return m_songs[i];
}
}
std::clog << "webserver/info: Couldn't find requested song." << std::endl;
return std::shared_ptr<Song>();
}
std::map<std::string, std::string> RequestHandler::GenerateLocaleDict() {
std::vector<std::string> translationKeys = GetTranslationKeys();
std::map<std::string, std::string> localeMap;
for (auto const &translationKey : translationKeys) {
localeMap[translationKey] = _(translationKey);
}
return localeMap;
}
std::vector<std::string> RequestHandler::GetTranslationKeys() {
std::vector<std::string> tranlationKeys = {
translate_noop("Performous web frontend"),
translate_noop("View database"),
translate_noop("View playlist"),
translate_noop("Search and Add"),
translate_noop("Sort by"),
translate_noop("Artist"),
translate_noop("Title"),
translate_noop("Language"),
translate_noop("Edition"),
translate_noop("Creator"),
translate_noop("Sort order"),
translate_noop("Normal"),
translate_noop("Inverted"),
translate_noop("Update every 10 sec"),
translate_noop("Refresh database"),
translate_noop("Upcoming songs"),
translate_noop("Refresh playlist"),
translate_noop("Web interface by Niek Nooijens and Arjan Speiard, for full credits regarding Performous see /docs/Authors.txt"),
translate_noop("Search"),
translate_noop("Available songs"),
translate_noop("Search for songs"),
translate_noop("Yes"),
translate_noop("No"),
translate_noop("Move up"),
translate_noop("Move down"),
translate_noop("Set position"),
translate_noop("Remove song"),
translate_noop("Desired position of song"),
translate_noop("Cancel"),
translate_noop("Successfully removed song from playlist"),
translate_noop("Failed removing song from playlist"),
translate_noop("Successfully changed position of song"),
translate_noop("Failed changing position of song"),
translate_noop("Successfully moved song up"),
translate_noop("Failed moving song up"),
translate_noop("Successfully moved song down"),
translate_noop("Failed moving song down"),
translate_noop("Successfully added song to the playlist"),
translate_noop("Failed adding song to the playlist"),
translate_noop("No songs found with current filter")
};
return tranlationKeys;
}
#endif
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