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TuxCoding/Account.java

Created December 9, 2016 14:54
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Upload a Minecraft skin automatically
Raw
Account.java
package com.github.games647.changeskin.core.model.mojang.auth;
import com.github.games647.changeskin.core.model.PlayerProfile;
public class Account {
private final PlayerProfile profile;
private final String accessToken;
public Account(PlayerProfile profile, String accessToken) {
this.profile = profile;
this.accessToken = accessToken;
}
public PlayerProfile getProfile() {
return profile;
}
public String getAccessToken() {
return accessToken;
}
}
Raw
Agent.java
package com.github.games647.changeskin.core.model.mojang.auth;
public class Agent {
private String name = "Minecraft";
private int version = 1;
}
Raw
AuthenticationRequest.java
package com.github.games647.changeskin.core.model.mojang.auth;
public class AuthenticationRequest {
private final Agent agent = new Agent();
private final String username;
private final String password;
public AuthenticationRequest(String username, String password) {
this.username = username;
this.password = password;
}
public String getUsername() {
return username;
}
public String getPassword() {
return password;
}
}
Raw
AuthenticationResponse.java
package com.github.games647.changeskin.core.model.mojang.auth;
import com.github.games647.changeskin.core.model.PlayerProfile;
public class AuthenticationResponse {
private String accessToken;
private PlayerProfile selectedProfile;
public String getAccessToken() {
return accessToken;
}
public PlayerProfile getSelectedProfile() {
return selectedProfile;
}
}
Raw
MojangAuthApi.java
package com.github.games647.changeskin.core;
import com.github.games647.changeskin.core.model.mojang.auth.Account;
import com.github.games647.changeskin.core.model.mojang.auth.AuthenticationRequest;
import com.github.games647.changeskin.core.model.mojang.auth.AuthenticationResponse;
import com.google.common.base.Charsets;
import com.google.gson.Gson;
import com.google.gson.JsonParseException;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URLEncoder;
import java.util.UUID;
import java.util.logging.Level;
import java.util.logging.Logger;
public class MojangAuthApi {
private static final String CHANGE_SKIN_URL = "https://api.mojang.com/user/profile/<uuid>/skin";
private static final String AUTH_URL = "https://authserver.mojang.com/authenticate";
private static final String OLD_SKIN_URL = "https://skins.minecraft.net/MinecraftSkins/<playerName>.png";
private final Gson gson = new Gson();
private final Logger logger;
public MojangAuthApi(Logger logger) {
this.logger = logger;
}
public Account authenticate(String email, String password) {
BufferedWriter writer = null;
BufferedReader reader = null;
try {
HttpURLConnection httpConnection = ChangeSkinCore.getConnection(AUTH_URL);
httpConnection.setRequestMethod("POST");
httpConnection.setDoOutput(true);
OutputStreamWriter streamWriter = new OutputStreamWriter(httpConnection.getOutputStream(), Charsets.UTF_8);
writer = new BufferedWriter(streamWriter);
writer.append(gson.toJson(new AuthenticationRequest(email, password)));
writer.flush();
InputStreamReader inputReader = new InputStreamReader(httpConnection.getInputStream());
reader = new BufferedReader(inputReader);
String line = reader.readLine();
if (line != null && !line.equals("null")) {
AuthenticationResponse authResponse = gson.fromJson(line, AuthenticationResponse.class);
return new Account(authResponse.getSelectedProfile(), authResponse.getAccessToken());
}
} catch (IOException | JsonParseException ex) {
logger.log(Level.SEVERE, "Tried converting player name to uuid", ex);
} finally {
ChangeSkinCore.closeQuietly(writer, logger);
ChangeSkinCore.closeQuietly(reader, logger);
}
return null;
}
public boolean changeSkin(UUID ownerId, UUID accessToken, String sourceUrl, boolean slimModel) {
String url = CHANGE_SKIN_URL.replace("<uuid>", ownerId.toString().replace("-", ""));
BufferedWriter writer = null;
try {
HttpURLConnection httpConnection = ChangeSkinCore.getConnection(url);
httpConnection.setRequestMethod("POST");
httpConnection.setDoOutput(true);
httpConnection.addRequestProperty("Authorization", "Bearer " + accessToken.toString().replace("-", ""));
OutputStreamWriter streamWriter = new OutputStreamWriter(httpConnection.getOutputStream(), Charsets.UTF_8);
writer = new BufferedWriter(streamWriter);
if (slimModel) {
writer.write("model=" + URLEncoder.encode("slim", Charsets.UTF_8.name()));
} else {
writer.write("model=");
}
writer.write("&url=" + URLEncoder.encode(sourceUrl, Charsets.UTF_8.name()));
writer.flush();
httpConnection.connect();
logger.log(Level.FINE, "Response code for uploading {0}", httpConnection.getResponseCode());
return true;
} catch (IOException ioEx) {
logger.log(Level.SEVERE, "Tried downloading skin data from Mojang", ioEx);
} finally {
ChangeSkinCore.closeQuietly(writer, logger);
}
return false;
}
public String getSkinUrl(String playerName) {
String url = OLD_SKIN_URL.replace("<playerName>", playerName);
try {
HttpURLConnection httpConnection = ChangeSkinCore.getConnection(url);
//we only need the new url not the actual content
httpConnection.setInstanceFollowRedirects(false);
httpConnection.connect();
if (httpConnection.getResponseCode() != 301) {
logger.log(Level.SEVERE
, "Invalid response from the skin server Response Code: {0}", httpConnection.getResponseCode());
return "";
}
//contains the actual skin storage url which will never be deleted and is unique
return httpConnection.getHeaderField("Location");
} catch (IOException ioEx) {
logger.log(Level.SEVERE, "Tried looking for the old skin url", ioEx);
}
return "";
}
}
Raw
PlayerProfile.java
package com.github.games647.changeskin.core.model;
public class PlayerProfile {
private String id;
private String name;
public String getId() {
return id;
}
public String getName() {
return name;
}
}
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