TF-LibsDisguises/src/main/java/me/libraryaddict/disguise/utilities/mineskin/MineSkinAPI.java

309 lines
12 KiB
Java

package me.libraryaddict.disguise.utilities.mineskin;
import com.google.gson.Gson;
import lombok.Getter;
import lombok.Setter;
import me.libraryaddict.disguise.LibsDisguises;
import me.libraryaddict.disguise.utilities.DisguiseUtilities;
import me.libraryaddict.disguise.utilities.SkinUtils;
import me.libraryaddict.disguise.utilities.translations.LibsMsg;
import java.io.*;
import java.net.HttpURLConnection;
import java.net.SocketTimeoutException;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.ReentrantLock;
import java.util.stream.Collectors;
/**
* Created by libraryaddict on 28/12/2019.
* <p>
* This isn't a stanealone class
*/
public class MineSkinAPI {
private class APIError {
int code;
String error;
}
/**
* Time in millis until next request can be made
*/
private long nextRequest;
private final ReentrantLock lock = new ReentrantLock();
@Getter
@Setter
private boolean debugging;
@Getter
@Setter
private String apiKey;
public boolean isInUse() {
return lock.isLocked();
}
public int nextRequestIn() {
long timeTillNext = nextRequest - System.currentTimeMillis();
if (timeTillNext < 0) {
return 0;
}
return (int) Math.ceil(timeTillNext / 1000D);
}
/**
* Fetches image from the provided url
*
* @param url
*/
public MineSkinResponse generateFromUrl(SkinUtils.SkinCallback callback, String url, SkinUtils.ModelType modelType) {
return doPost(callback, "/generate/url", url, null, modelType);
}
private void printDebug(String message) {
if (!isDebugging() || LibsDisguises.getInstance() == null) {
return;
}
LibsDisguises.getInstance().getLogger().info("[MineSkinAPI] " + message);
}
private MineSkinResponse doPost(SkinUtils.SkinCallback callback, String path, String skinUrl, File file, SkinUtils.ModelType modelType) {
lock.lock();
long sleep = nextRequest - System.currentTimeMillis();
if (file != null) {
printDebug("Grabbing a skin from file at " + file.getPath());
} else if (skinUrl != null) {
printDebug("Grabbing a skin from url '" + skinUrl + "'");
}
if (getApiKey() != null) {
printDebug("Using a MineSkin api key!");
}
if (sleep > 0) {
printDebug("Sleeping for " + sleep + "ms before calling the API due to a recent request");
try {
Thread.sleep(sleep);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
HttpURLConnection connection = null;
long nextRequestIn = TimeUnit.SECONDS.toMillis(10);
try {
if (getApiKey() != null) {
path += (path.contains("?") ? '&' : '?') + "key=" + getApiKey();
}
URL url = new URL("https://api.mineskin.org" + path);
// Creating a connection
connection = (HttpURLConnection) url.openConnection();
connection.setConnectTimeout(19000);
connection.setReadTimeout(19000);
connection.setDoOutput(true);
connection.setRequestProperty("User-Agent", "LibsDisguises");
String boundary = "LD@" + Long.toHexString(System.currentTimeMillis()); // Just generate some unique random value.
connection.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);
String charset = "UTF-8";
String CRLF = "\r\n"; // Line separator required by multipart/form-data.
try (OutputStream output = connection.getOutputStream(); PrintWriter writer = new PrintWriter(new OutputStreamWriter(output, charset), true)) {
// Send normal param.
writer.append("--").append(boundary).append(CRLF);
writer.append("Content-Disposition: form-data; name=\"visibility\"").append(CRLF);
writer.append("Content-Type: text/plain; charset=").append(charset).append(CRLF);
writer.append(CRLF).append("1").append(CRLF).flush();
if (file != null) {
// Send binary file.
writer.append("--").append(boundary).append(CRLF);
writer.append("Content-Disposition: form-data; name=\"file\"; filename=\"").append(file.getName()).append("\"").append(CRLF);
writer.append("Content-Type: image/png").append(CRLF);
writer.append("Content-Transfer-Encoding: binary").append(CRLF);
writer.append(CRLF).flush();
Files.copy(file.toPath(), output);
output.flush(); // Important before continuing with writer!
writer.append(CRLF).flush(); // CRLF is important! It indicates end of boundary.
} else if (skinUrl != null) {
// Send normal param.
writer.append("--").append(boundary).append(CRLF);
writer.append("Content-Disposition: form-data; name=\"url\"").append(CRLF);
writer.append(CRLF).append(skinUrl).append(CRLF).flush();
}
if (modelType == SkinUtils.ModelType.SLIM) {
writer.append("--").append(boundary).append(CRLF);
writer.append("Content-Disposition: form-data; name=\"model\"").append(CRLF);
writer.append(CRLF).append("slim").append(CRLF).flush();
}
// End of multipart/form-data.
writer.append("--").append(boundary).append("--").append(CRLF).flush();
}
printDebug("Received status code: " + connection.getResponseCode());
if (connection.getResponseCode() == 500) {
String errorMessage = new BufferedReader(new InputStreamReader(connection.getErrorStream(), StandardCharsets.UTF_8)).lines()
.collect(Collectors.joining("\n"));
APIError error = new Gson().fromJson(errorMessage, APIError.class);
printDebug("Received error: " + errorMessage);
if (error.code == 403) {
callback.onError(LibsMsg.SKIN_API_FAIL_CODE, "" + error.code, LibsMsg.SKIN_API_403.get());
return null;
} else if (error.code == 404) {
callback.onError(LibsMsg.SKIN_API_FAIL_CODE, "" + error.code, LibsMsg.SKIN_API_404.get());
return null;
} else if (error.code == 408 || error.code == 504 || error.code == 599) {
callback.onError(LibsMsg.SKIN_API_FAIL_CODE, "" + error.code, LibsMsg.SKIN_API_TIMEOUT.get());
return null;
} else {
callback.onError(LibsMsg.SKIN_API_FAIL_CODE, "" + error.code, LibsMsg.SKIN_API_IMAGE_HAS_ERROR.get(error.error));
return null;
}
} else if (connection.getResponseCode() == 400) {
if (skinUrl != null) {
callback.onError(LibsMsg.SKIN_API_BAD_URL);
return null;
} else if (file != null) {
callback.onError(LibsMsg.SKIN_API_BAD_FILE);
return null;
}
} else if (connection.getResponseCode() == 429) {
callback.onError(LibsMsg.SKIN_API_FAIL_TOO_FAST);
return null;
}
// Get the input stream, what we receive
try (InputStream input = connection.getInputStream()) {
// Read it to string
String response = new BufferedReader(new InputStreamReader(input, StandardCharsets.UTF_8)).lines().collect(Collectors.joining("\n"));
printDebug("Received: " + response);
MineSkinResponse skinResponse = new Gson().fromJson(response, MineSkinResponse.class);
nextRequestIn = (long) (skinResponse.getNextRequest() * 1000);
return skinResponse;
}
} catch (SocketTimeoutException ex) {
if (isDebugging()) {
ex.printStackTrace();
}
callback.onError(skinUrl == null ? LibsMsg.SKIN_API_TIMEOUT_ERROR : LibsMsg.SKIN_API_IMAGE_TIMEOUT);
return null;
} catch (Exception ex) {
try {
if (connection != null && (connection.getResponseCode() == 524 || connection.getResponseCode() == 408 || connection.getResponseCode() == 504 ||
connection.getResponseCode() == 599)) {
if (getApiKey() != null && connection.getResponseCode() == 504) {
callback.onError(LibsMsg.SKIN_API_TIMEOUT_API_KEY_ERROR);
} else {
callback.onError(LibsMsg.SKIN_API_TIMEOUT_ERROR);
}
return null;
}
} catch (IOException ignored) {
}
if (DisguiseUtilities.getLogger() != null) {
DisguiseUtilities.getLogger().warning("Failed to access MineSkin.org");
}
ex.printStackTrace();
callback.onError(LibsMsg.SKIN_API_FAIL);
} finally {
nextRequest = System.currentTimeMillis() + nextRequestIn + 1000;
lock.unlock();
}
return null;
}
public MineSkinResponse generateFromUUID(UUID uuid, SkinUtils.ModelType modelType) throws IllegalArgumentException {
lock.lock();
long sleep = nextRequest - System.currentTimeMillis();
if (sleep > 0) {
try {
Thread.sleep(sleep);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
long nextRequestIn = TimeUnit.SECONDS.toMillis(10);
try {
String siteUrl = "https://api.mineskin.org/generate/user/:" + uuid.toString();
if (modelType == SkinUtils.ModelType.SLIM) {
siteUrl += "?model=slim";
}
URL url = new URL(siteUrl);
// Creating a connection
HttpURLConnection con = (HttpURLConnection) url.openConnection();
con.setRequestProperty("User-Agent", "LibsDisguises");
con.setDoOutput(true);
// Get the input stream, what we receive
try (InputStream input = con.getInputStream()) {
// Read it to string
String response = new BufferedReader(new InputStreamReader(input, StandardCharsets.UTF_8)).lines().collect(Collectors.joining("\n"));
MineSkinResponse skinResponse = new Gson().fromJson(response, MineSkinResponse.class);
nextRequestIn = (long) (skinResponse.getNextRequest() * 1000);
return skinResponse;
}
} catch (Exception ex) {
if (ex.getMessage() != null && ex.getMessage().contains("Server returned HTTP response code: 400 for URL")) {
throw new IllegalArgumentException();
}
if (DisguiseUtilities.getLogger() != null) {
DisguiseUtilities.getLogger().warning("Failed to access MineSkin.org");
}
ex.printStackTrace();
} finally {
nextRequest = System.currentTimeMillis() + nextRequestIn + 1000;
lock.unlock();
}
return null;
}
/**
* Uploads png file
*
* @param file
*/
public MineSkinResponse generateFromFile(SkinUtils.SkinCallback callback, File file, SkinUtils.ModelType modelType) {
return doPost(callback, "/generate/upload", null, file, modelType);
}
}