Add QR code support

example/src/main/java/it.tdlight.example/Example.java

@@ -1,9 +1,3 @@
-//
-// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
 package it.tdlight.example;
 
 import it.tdlight.client.APIToken;

src/main/java/it/tdlight/client/AuthenticationData.java

@@ -2,12 +2,18 @@ package it.tdlight.client;
 
 public interface AuthenticationData {
 
+	boolean isQrCode();
+
 	boolean isBot();
 
 	long getUserPhoneNumber();
 
 	String getBotToken();
 
+	static AuthenticationData qrCode() {
+		return new AuthenticationDataQrCode();
+	}
+
 	static AuthenticationData user(long userPhoneNumber) {
 		return new AuthenticationDataImpl(userPhoneNumber, null);
 	}

src/main/java/it/tdlight/client/AuthenticationDataImpl.java

@@ -20,6 +20,11 @@ final class AuthenticationDataImpl implements AuthenticationData {
 		this.botToken = botToken;
 	}
 
+	@Override
+	public boolean isQrCode() {
+		return false;
+	}
+
 	@Override
 	public boolean isBot() {
 		return botToken != null;

src/main/java/it/tdlight/client/AuthenticationDataQrCode.java

@@ -0,0 +1,24 @@
+package it.tdlight.client;
+
+class AuthenticationDataQrCode implements AuthenticationData {
+
+	@Override
+	public boolean isQrCode() {
+		return true;
+	}
+
+	@Override
+	public boolean isBot() {
+		return false;
+	}
+
+	@Override
+	public long getUserPhoneNumber() {
+		throw new UnsupportedOperationException("This is not a user");
+	}
+
+	@Override
+	public String getBotToken() {
+		throw new UnsupportedOperationException("This is not a bot");
+	}
+}

src/main/java/it/tdlight/client/AuthorizationStateWaitAuthenticationDataHandler.java

@@ -40,6 +40,13 @@ final class AuthorizationStateWaitAuthenticationDataHandler implements GenericUp
 						throw new TelegramError((Error) ok);
 					}
 				}, exceptionHandler);
+			} else if (authenticationData.isQrCode()) {
+				TdApi.RequestQrCodeAuthentication response = new TdApi.RequestQrCodeAuthentication();
+				client.send(response, ok -> {
+					if (ok.getConstructor() == Error.CONSTRUCTOR) {
+						throw new TelegramError((Error) ok);
+					}
+				}, exceptionHandler);
 			} else {
 				PhoneNumberAuthenticationSettings phoneSettings = new PhoneNumberAuthenticationSettings(false, false, false);
 

src/main/java/it/tdlight/client/ConsoleInteractiveAuthenticationData.java

@@ -9,6 +9,7 @@ final class ConsoleInteractiveAuthenticationData implements AuthenticationData {
 	private static final Object LOCK = new Object();
 
 	private boolean initialized = false;
+	private boolean isQr;
 	private boolean isBot;
 	private String botToken;
 	private long phoneNumber;
@@ -25,6 +26,12 @@ final class ConsoleInteractiveAuthenticationData implements AuthenticationData {
 		return initialized;
 	}
 
+	@Override
+	public boolean isQrCode() {
+		initializeIfNeeded();
+		return isQr;
+	}
+
 	@Override
 	public boolean isBot() {
 		initializeIfNeeded();
@@ -34,7 +41,7 @@ final class ConsoleInteractiveAuthenticationData implements AuthenticationData {
 	@Override
 	public long getUserPhoneNumber() {
 		initializeIfNeeded();
-		if (isBot) {
+		if (isBot || isQr) {
 			throw new UnsupportedOperationException("This is not a user");
 		}
 		return phoneNumber;
@@ -43,7 +50,7 @@ final class ConsoleInteractiveAuthenticationData implements AuthenticationData {
 	@Override
 	public String getBotToken() {
 		initializeIfNeeded();
-		if (!isBot) {
+		if (!isBot || isQr) {
 			throw new UnsupportedOperationException("This is not a bot");
 		}
 		return botToken;
@@ -58,22 +65,24 @@ final class ConsoleInteractiveAuthenticationData implements AuthenticationData {
 			String choice;
 
 			// Choose login type
-			Boolean useBotToken;
+			String mode;
 			do {
 				choice = ScannerUtils
-						.askParameter("login", "Do you want to login using a bot [token] or a [phone] number? [token/phone]")
+						.askParameter("login", "Do you want to login using a bot [token], a [phone] number, or a [qr] code? [token/phone/qr]")
 						.trim()
 						.toLowerCase(Locale.ROOT);
 				if ("phone".equals(choice)) {
-					useBotToken = false;
+					mode = "PHONE";
 				} else if ("token".equals(choice)) {
-					useBotToken = true;
+					mode = "TOKEN";
+				} else if ("qr".equals(choice)) {
+					mode = "QR";
 				} else {
-					useBotToken = null;
+					mode = null;
 				}
-			} while (useBotToken == null);
+			} while (mode == null);
 
-			if (useBotToken) {
+			if ("TOKEN".equals(mode)) {
 				String token;
 				do {
 					token = ScannerUtils.askParameter("login", "Please type the bot token");
@@ -82,7 +91,8 @@ final class ConsoleInteractiveAuthenticationData implements AuthenticationData {
 				this.isBot = true;
 				this.phoneNumber = -1;
 				this.botToken = token;
-			} else {
+				this.isQr = false;
+			} else if ("PHONE".equals(mode)) {
 				String phoneNumber;
 				do {
 					phoneNumber = ScannerUtils.askParameter("login", "Please type your phone number");
@@ -97,6 +107,13 @@ final class ConsoleInteractiveAuthenticationData implements AuthenticationData {
 				this.isBot = false;
 				this.phoneNumber = phoneNumberLong;
 				this.botToken = null;
+				this.isQr = false;
+			} else {
+
+				this.isBot = false;
+				this.phoneNumber = -1;
+				this.botToken = null;
+				this.isQr = true;
 			}
 
 			initialized = true;

src/main/java/it/tdlight/client/ScannerClientInteraction.java

@@ -23,6 +23,8 @@ final class ScannerClientInteraction implements ClientInteraction {
 		}
 		if (!useRealWho) {
 			who = "login";
+		} else if (authenticationData.isQrCode()) {
+			who = "QR login";
 		} else if (authenticationData.isBot()) {
 			who = authenticationData.getBotToken().split(":", 2)[0];
 		} else {