package net.glowstone.entity.meta.profile;
import net.glowstone.GlowServer;
import net.glowstone.util.UuidUtils;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.JSONValue;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
import javax.net.ssl.HttpsURLConnection;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
import java.util.logging.Level;
/**
* Methods for accessing Mojang servers to look up player profiles and UUIDs.
*/
final class PlayerDataFetcher {
private static final String PROFILE_URL = "https://sessionserver.mojang.com/session/minecraft/profile/";
private static final String PROFILE_URL_SUFFIX = "?unsigned=false";
private static final String UUID_URL = "https://api.mojang.com/profiles/minecraft";
private PlayerDataFetcher() {
}
/**
* Look up the PlayerProfile for a given UUID.
* @param uuid The UUID to look up.
* @return The resulting PlayerProfile, or null on failure.
*/
public static PlayerProfile getProfile(UUID uuid) {
InputStream is;
try {
URL url = new URL(PROFILE_URL + UuidUtils.toFlatString(uuid) + PROFILE_URL_SUFFIX);
URLConnection conn = url.openConnection();
//potentially blocking
is = conn.getInputStream();
} catch (IOException e) {
GlowServer.logger.log(Level.WARNING, "Failed to look up profile");
return null;
}
JSONObject json;
try {
InputStreamReader isr = new InputStreamReader(is);
if (isr.ready()) {
json = (JSONObject) new JSONParser().parse(isr);
} else {
return new PlayerProfile(null, uuid);
}
} catch (ParseException e) {
GlowServer.logger.log(Level.WARNING, "Failed to parse profile response", e);
return null;
} catch (IOException e) {
GlowServer.logger.log(Level.WARNING, "Failed to look up profile", e);
return null;
}
return PlayerProfile.fromJson(json);
}
/**
* Look up the UUID for a given username.
* @param playerName The name to look up.
* @return The UUID, or null on failure.
*/
public static UUID getUUID(String playerName) {
HttpsURLConnection conn;
try {
URL url = new URL(UUID_URL);
conn = (HttpsURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type", "application/json");
} catch (IOException e) {
GlowServer.logger.log(Level.WARNING, "Failed to look up UUID", e);
return null;
}
List<String> playerList = new ArrayList<>();
playerList.add(playerName);
JSONArray json;
try {
try (DataOutputStream os = new DataOutputStream(conn.getOutputStream())) {
os.writeBytes(JSONValue.toJSONString(playerList));
}
json = (JSONArray) JSONValue.parse(new InputStreamReader(conn.getInputStream()));
} catch (IOException e) {
GlowServer.logger.warning("Couldn't get UUID due to IO error: " + e.toString());
return null;
}
if (json.size() > 0) {
String uuid = (String) ((JSONObject) json.get(0)).get("id");
return UuidUtils.fromFlatString(uuid);
}
return null;
}
}