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Separate AbilityBot logic and implement Webhook

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Abbas Abou Daya 2018-05-28 18:12:31 -04:00
parent ce1b0402ac
commit b5bfaced7e
6 changed files with 972 additions and 840 deletions
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telegrambots-abilities/src/main/java/org/telegram/abilitybots/api/bot/AbilityBot.java
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@ -1,145 +1,43 @@
package org.telegram.abilitybots.api.bot;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableList.Builder;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ListMultimap;
import com.google.common.collect.Multimap;
import org.apache.commons.io.IOUtils;
import org.jetbrains.annotations.NotNull;
import org.telegram.abilitybots.api.db.DBContext;
import org.telegram.abilitybots.api.objects.*;
import org.telegram.abilitybots.api.sender.DefaultSender;
import org.telegram.abilitybots.api.sender.MessageSender;
import org.telegram.abilitybots.api.sender.SilentSender;
import org.telegram.abilitybots.api.util.AbilityUtils;
import org.telegram.abilitybots.api.util.Pair;
import org.telegram.abilitybots.api.util.Trio;
import org.telegram.telegrambots.api.methods.GetFile;
import org.telegram.telegrambots.api.methods.groupadministration.GetChatAdministrators;
import org.telegram.telegrambots.api.methods.send.SendDocument;
import org.telegram.telegrambots.api.objects.Message;
import org.telegram.telegrambots.api.objects.Update;
import org.telegram.telegrambots.api.objects.User;
import org.telegram.telegrambots.bots.DefaultBotOptions;
import org.telegram.telegrambots.bots.TelegramLongPollingBot;
import org.telegram.telegrambots.exceptions.TelegramApiException;
import org.telegram.telegrambots.logging.BotLogger;
import org.telegram.telegrambots.exceptions.TelegramApiRequestException;
import org.telegram.telegrambots.generics.LongPollingBot;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.PrintStream;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.*;
import java.util.Map.Entry;
import java.util.function.BiFunction;
import java.util.function.Predicate;
import java.util.stream.Stream;
import java.util.List;
import static com.google.common.base.Strings.isNullOrEmpty;
import static com.google.common.collect.MultimapBuilder.hashKeys;
import static java.lang.String.format;
import static java.time.ZonedDateTime.now;
import static java.util.Arrays.stream;
import static java.util.Comparator.comparing;
import static java.util.Objects.nonNull;
import static java.util.Optional.ofNullable;
import static java.util.regex.Pattern.CASE_INSENSITIVE;
import static java.util.regex.Pattern.compile;
import static java.util.stream.Collectors.joining;
import static jersey.repackaged.com.google.common.base.Throwables.propagate;
import static org.apache.commons.lang3.StringUtils.isEmpty;
import static org.telegram.abilitybots.api.db.MapDBContext.onlineInstance;
import static org.telegram.abilitybots.api.objects.Ability.builder;
import static org.telegram.abilitybots.api.objects.Flag.*;
import static org.telegram.abilitybots.api.objects.Locality.*;
import static org.telegram.abilitybots.api.objects.MessageContext.newContext;
import static org.telegram.abilitybots.api.objects.Privacy.*;
import static org.telegram.abilitybots.api.util.AbilityMessageCodes.*;
import static org.telegram.abilitybots.api.util.AbilityUtils.*;
/**
* The <b>father</b> of all ability bots. Bots that need to utilize abilities need to extend this bot.
* <p>
* It's important to note that this bot strictly extends {@link TelegramLongPollingBot}.
* <p>
* All bots extending the {@link AbilityBot} get implicit abilities:
* <ul>
* <li>/claim - Claims this bot</li>
* <ul>
* <li>Sets the user as the {@link Privacy#CREATOR} of the bot</li>
* <li>Only the user with the ID returned by {@link AbilityBot#creatorId()} can genuinely claim the bot</li>
* </ul>
* <li>/report - reports all user-defined commands (abilities)</li>
* <ul>
* <li>The same format acceptable by BotFather</li>
* </ul>
* <li>/commands - returns a list of all possible bot commands based on the privacy of the requesting user</li>
* <li>/backup - returns a backup of the bot database</li>
* <li>/recover - recovers the database</li>
* <li>/promote <code>@username</code> - promotes user to bot admin</li>
* <li>/demote <code>@username</code> - demotes bot admin to user</li>
* <li>/ban <code>@username</code> - bans the user from accessing your bot commands and features</li>
* <li>/unban <code>@username</code> - lifts the ban from the user</li>
* </ul>
* <p>
* Additional information of the implicit abilities are present in the methods that declare them.
* <p>
* The two most important handles in the AbilityBot are the {@link DBContext} <b><code>db</code></b> and the {@link MessageSender} <b><code>sender</code></b>.
* All bots extending AbilityBot can use both handles in their update consumers.
* The default AbilityBot class implements {@link LongPollingBot}. It delegates all updates to a {@link TelegramLongPollingBot} instance.
*
* @author Abbas Abou Daya
*/
public abstract class AbilityBot extends TelegramLongPollingBot {
private static final String TAG = AbilityBot.class.getSimpleName();
// DB objects
public static final String ADMINS = "ADMINS";
public static final String USERS = "USERS";
public static final String USER_ID = "USER_ID";
public static final String BLACKLIST = "BLACKLIST";
// Factory commands
protected static final String DEFAULT = "default";
protected static final String CLAIM = "claim";
protected static final String BAN = "ban";
protected static final String PROMOTE = "promote";
protected static final String DEMOTE = "demote";
protected static final String UNBAN = "unban";
protected static final String BACKUP = "backup";
protected static final String RECOVER = "recover";
protected static final String COMMANDS = "commands";
protected static final String REPORT = "report";
// DB and sender
protected final DBContext db;
protected MessageSender sender;
protected SilentSender silent;
// Bot token and username
private final String botToken;
private final String botUsername;
// Ability registry
private Map<String, Ability> abilities;
// Reply registry
private List<Reply> replies;
public abstract int creatorId();
public abstract class AbilityBot extends BaseAbilityBot implements LongPollingBot {
private final TelegramLongPollingBot bot;
protected AbilityBot(String botToken, String botUsername, DBContext db, DefaultBotOptions botOptions) {
super(botOptions);
super(botToken, botUsername, db, botOptions);
this.botToken = botToken;
this.botUsername = botUsername;
this.db = db;
this.sender = new DefaultSender(this);
silent = new SilentSender(sender);
bot = new TelegramLongPollingBot() {
@Override
public void onUpdateReceived(Update update) {
AbilityBot.this.onUpdateReceived(update);
}
registerAbilities();
@Override
public String getBotUsername() {
return botUsername;
}
@Override
public String getBotToken() {
return botToken;
}
};
}
protected AbilityBot(String botToken, String botUsername, DBContext db) {
@ -154,722 +52,18 @@ public abstract class AbilityBot extends TelegramLongPollingBot {
this(botToken, botUsername, onlineInstance(botUsername));
}
/**
* @return the map of ID -> User
*/
protected Map<Integer, User> users() {
return db.getMap(USERS);
}
/**
* @return the map of Username -> ID
*/
protected Map<String, Integer> userIds() {
return db.getMap(USER_ID);
}
/**
* @return a blacklist containing all the IDs of the banned users
*/
protected Set<Integer> blacklist() {
return db.getSet(BLACKLIST);
}
/**
* @return an admin set of all the IDs of bot administrators
*/
protected Set<Integer> admins() {
return db.getSet(ADMINS);
}
/**
* @return the immutable map of String -> Ability
*/
public Map<String, Ability> abilities() {
return abilities;
}
/**
* @return the immutable list carrying the embedded replies
*/
public List<Reply> replies() {
return replies;
}
/**
* This method contains the stream of actions that are applied on any update.
* <p>
* It will correctly handle addition of users into the DB and the execution of abilities and replies.
*
* @param update the update received by Telegram's API
*/
@Override
public void onUpdateReceived(Update update) {
BotLogger.info(format("New update [%s] received at %s", update.getUpdateId(), now()), format("%s - %s", TAG, botUsername));
BotLogger.info(update.toString(), TAG);
long millisStarted = System.currentTimeMillis();
Stream.of(update)
.filter(this::checkGlobalFlags)
.filter(this::checkBlacklist)
.map(this::addUser)
.filter(this::filterReply)
.map(this::getAbility)
.filter(this::validateAbility)
.filter(this::checkPrivacy)
.filter(this::checkLocality)
.filter(this::checkInput)
.filter(this::checkMessageFlags)
.map(this::getContext)
.map(this::consumeUpdate)
.forEach(this::postConsumption);
long processingTime = System.currentTimeMillis() - millisStarted;
BotLogger.info(format("Processing of update [%s] ended at %s%n---> Processing time: [%d ms] <---%n", update.getUpdateId(), now(), processingTime), format("%s - %s", TAG, botUsername));
public void onUpdatesReceived(List<Update> updates) {
bot.onUpdatesReceived(updates);
}
@Override
public String getBotToken() {
return botToken;
public void clearWebhook() throws TelegramApiRequestException {
bot.clearWebhook();
}
@Override
public String getBotUsername() {
return botUsername;
}
/**
* Test the update against the provided global flags. The default implementation is a passthrough to all updates.
* <p>
* This method should be <b>overridden</b> if the user wants to restrict bot usage to only certain updates.
*
* @param update a Telegram {@link Update}
* @return <tt>true</tt> if the update satisfies the global flags
*/
protected boolean checkGlobalFlags(Update update) {
return true;
}
/**
* Gets the user with the specified username.
*
* @param username the username of the required user
* @return the user
*/
protected User getUser(String username) {
Integer id = userIds().get(username.toLowerCase());
if (id == null) {
throw new IllegalStateException(format("Could not find ID corresponding to username [%s]", username));
}
return getUser(id);
}
/**
* Gets the user with the specified ID.
*
* @param id the id of the required user
* @return the user
*/
protected User getUser(int id) {
User user = users().get(id);
if (user == null) {
throw new IllegalStateException(format("Could not find user corresponding to id [%d]", id));
}
return user;
}
/**
* Gets the user with the specified username. If user was not found, the bot will send a message on Telegram.
*
* @param username the username of the required user
* @param ctx the message context with the originating user
* @return the id of the user
*/
protected int getUserIdSendError(String username, MessageContext ctx) {
try {
return getUser(username).getId();
} catch (IllegalStateException ex) {
silent.send(getLocalizedMessage(USER_NOT_FOUND, ctx.user().getLanguageCode(), username), ctx.chatId());
throw propagate(ex);
}
}
/**
* <p>
* Format of the report:
* <p>
* [command1] - [description1]
* <p>
* [command2] - [description2]
* <p>
* ...
* <p>
* Once you invoke it, the bot will send the available commands to the chat. This is a public ability so anyone can invoke it.
* <p>
* Usage: <code>/commands</code>
*
* @return the ability to report commands defined by the child bot.
*/
public Ability reportCommands() {
return builder()
.name(REPORT)
.locality(ALL)
.privacy(CREATOR)
.input(0)
.action(ctx -> {
String commands = abilities.entrySet().stream()
.filter(entry -> nonNull(entry.getValue().info()))
.map(entry -> {
String name = entry.getValue().name();
String info = entry.getValue().info();
return format("%s - %s", name, info);
})
.sorted()
.reduce((a, b) -> format("%s%n%s", a, b))
.orElse(getLocalizedMessage(ABILITY_COMMANDS_NOT_FOUND, ctx.user().getLanguageCode()));
silent.send(commands, ctx.chatId());
})
.build();
}
/**
* Default format:
* <p>
* PUBLIC
* <p>
* [command1] - [description1]
* <p>
* [command2] - [description2]
* <p>
* GROUP_ADMIN
* <p>
* [command1] - [description1]
* <p>
* ...
*
* @return the ability to print commands based on the privacy of the requesting user
*/
public Ability commands() {
return builder()
.name(COMMANDS)
.locality(USER)
.privacy(PUBLIC)
.input(0)
.action(ctx -> {
Privacy privacy = getPrivacy(ctx.update(), ctx.user().getId());
ListMultimap<Privacy, String> abilitiesPerPrivacy = abilities.entrySet().stream()
.map(entry -> {
String name = entry.getValue().name();
String info = entry.getValue().info();
if (!isEmpty(info))
return Pair.of(entry.getValue().privacy(), format("/%s - %s", name, info));
return Pair.of(entry.getValue().privacy(), format("/%s", name));
})
.sorted(comparing(Pair::b))
.collect(() -> hashKeys().arrayListValues().build(),
(map, pair) -> map.put(pair.a(), pair.b()),
Multimap::putAll);
String commands = abilitiesPerPrivacy.asMap().entrySet().stream()
.filter(entry -> privacy.compareTo(entry.getKey()) >= 0)
.sorted(comparing(Entry::getKey))
.map(entry ->
entry.getValue().stream()
.reduce(entry.getKey().toString(), (a, b) -> format("%s\n%s", a, b))
)
.collect(joining("\n"));
if (commands.isEmpty())
commands = getLocalizedMessage(ABILITY_COMMANDS_NOT_FOUND, ctx.user().getLanguageCode());
silent.send(commands, ctx.chatId());
})
.build();
}
/**
* This backup ability returns the object defined by {@link DBContext#backup()} as a message document.
* <p>
* This is a high-profile ability and is restricted to the CREATOR only.
* <p>
* Usage: <code>/backup</code>
*
* @return the ability to back-up the database of the bot
*/
public Ability backupDB() {
return builder()
.name(BACKUP)
.locality(USER)
.privacy(CREATOR)
.input(0)
.action(ctx -> {
File backup = new File("backup.json");
try (PrintStream printStream = new PrintStream(backup)) {
printStream.print(db.backup());
sender.sendDocument(new SendDocument()
.setNewDocument(backup)
.setChatId(ctx.chatId())
);
} catch (FileNotFoundException e) {
BotLogger.error("Error while fetching backup", TAG, e);
} catch (TelegramApiException e) {
BotLogger.error("Error while sending document/backup file", TAG, e);
}
})
.build();
}
/**
* Recovers the bot database using {@link DBContext#recover(Object)}.
* <p>
* The bot recovery process hugely depends on the implementation of the recovery method of {@link DBContext}.
* <p>
* Usage: <code>/recover</code>
*
* @return the ability to recover the database of the bot
*/
public Ability recoverDB() {
return builder()
.name(RECOVER)
.locality(USER)
.privacy(CREATOR)
.input(0)
.action(ctx -> silent.forceReply(
getLocalizedMessage(ABILITY_RECOVER_MESSAGE, ctx.user().getLanguageCode()), ctx.chatId()))
.reply(update -> {
String replyToMsg = update.getMessage().getReplyToMessage().getText();
String recoverMessage = getLocalizedMessage(ABILITY_RECOVER_MESSAGE, AbilityUtils.getUser(update).getLanguageCode());
if (!replyToMsg.equals(recoverMessage))
return;
String fileId = update.getMessage().getDocument().getFileId();
try (FileReader reader = new FileReader(downloadFileWithId(fileId))) {
String backupData = IOUtils.toString(reader);
if (db.recover(backupData)) {
send(ABILITY_RECOVER_SUCCESS, update);
} else {
send(ABILITY_RECOVER_FAIL, update);
}
} catch (Exception e) {
BotLogger.error("Could not recover DB from backup", TAG, e);
send(ABILITY_RECOVER_ERROR, update);
}
}, MESSAGE, DOCUMENT, REPLY)
.build();
}
/**
* Banned users are accumulated in the blacklist. Use {@link DBContext#getSet(String)} with name specified by {@link AbilityBot#BLACKLIST}.
* <p>
* Usage: <code>/ban @username</code>
* <p>
* <u>Note that admins who try to ban the creator, get banned.</u>
*
* @return the ability to ban the user from any kind of <b>bot interaction</b>
*/
public Ability banUser() {
return builder()
.name(BAN)
.locality(ALL)
.privacy(ADMIN)
.input(1)
.action(ctx -> {
String username = stripTag(ctx.firstArg());
int userId = getUserIdSendError(username, ctx);
String bannedUser;
// Protection from abuse
if (userId == creatorId()) {
userId = ctx.user().getId();
bannedUser = isNullOrEmpty(ctx.user().getUserName()) ? addTag(ctx.user().getUserName()) : shortName(ctx.user());
} else {
bannedUser = addTag(username);
}
Set<Integer> blacklist = blacklist();
if (blacklist.contains(userId))
sendMd(ABILITY_BAN_FAIL, ctx, escape(bannedUser));
else {
blacklist.add(userId);
sendMd(ABILITY_BAN_SUCCESS, ctx, escape(bannedUser));
}
})
.post(commitTo(db))
.build();
}
/**
* Usage: <code>/unban @username</code>
*
* @return the ability to unban a user
*/
public Ability unbanUser() {
return builder()
.name(UNBAN)
.locality(ALL)
.privacy(ADMIN)
.input(1)
.action(ctx -> {
String username = stripTag(ctx.firstArg());
Integer userId = getUserIdSendError(username, ctx);
Set<Integer> blacklist = blacklist();
if (!blacklist.remove(userId))
silent.sendMd(getLocalizedMessage(ABILITY_UNBAN_FAIL, ctx.user().getLanguageCode(), escape(username)), ctx.chatId());
else {
silent.sendMd(getLocalizedMessage(ABILITY_UNBAN_SUCCESS, ctx.user().getLanguageCode(), escape(username)), ctx.chatId());
}
})
.post(commitTo(db))
.build();
}
/**
* @return the ability to promote a user to a bot admin
*/
public Ability promoteAdmin() {
return builder()
.name(PROMOTE)
.locality(ALL)
.privacy(ADMIN)
.input(1)
.action(ctx -> {
String username = stripTag(ctx.firstArg());
Integer userId = getUserIdSendError(username, ctx);
Set<Integer> admins = admins();
if (admins.contains(userId))
sendMd(ABILITY_PROMOTE_FAIL, ctx, escape(username));
else {
admins.add(userId);
sendMd(ABILITY_PROMOTE_SUCCESS, ctx, escape(username));
}
}).post(commitTo(db))
.build();
}
/**
* @return the ability to demote an admin to a user
*/
public Ability demoteAdmin() {
return builder()
.name(DEMOTE)
.locality(ALL)
.privacy(ADMIN)
.input(1)
.action(ctx -> {
String username = stripTag(ctx.firstArg());
Integer userId = getUserIdSendError(username, ctx);
Set<Integer> admins = admins();
if (admins.remove(userId)) {
sendMd(ABILITY_DEMOTE_SUCCESS, ctx, escape(username));
} else {
sendMd(ABILITY_DEMOTE_FAIL, ctx, escape(username));
}
})
.post(commitTo(db))
.build();
}
/**
* Regular users and admins who try to claim the bot will get <b>banned</b>.
*
* @return the ability to claim yourself as the master and creator of the bot
*/
public Ability claimCreator() {
return builder()
.name(CLAIM)
.locality(ALL)
.privacy(CREATOR)
.input(0)
.action(ctx -> {
Set<Integer> admins = admins();
int id = creatorId();
if (admins.contains(id))
send(ABILITY_CLAIM_FAIL, ctx);
else {
admins.add(id);
send(ABILITY_CLAIM_SUCCESS, ctx);
}
})
.post(commitTo(db))
.build();
}
private Optional<Message> send(String message, MessageContext ctx, String... args) {
return silent.send(getLocalizedMessage(message, ctx.user().getLanguageCode(), args), ctx.chatId());
}
private Optional<Message> sendMd(String message, MessageContext ctx, String... args) {
return silent.sendMd(getLocalizedMessage(message, ctx.user().getLanguageCode(), args), ctx.chatId());
}
private Optional<Message> send(String message, Update upd) {
Long chatId = upd.getMessage().getChatId();
return silent.send(getLocalizedMessage(message, AbilityUtils.getUser(upd).getLanguageCode()), chatId);
}
/**
* Registers the declared abilities using method reflection. Also, replies are accumulated using the built abilities and standalone methods that return a Reply.
* <p>
* <b>Only abilities and replies with the <u>public</u> accessor are registered!</b>
*/
private void registerAbilities() {
try {
abilities = stream(this.getClass().getMethods())
.filter(method -> method.getReturnType().equals(Ability.class))
.map(this::returnAbility)
.collect(ImmutableMap::<String, Ability>builder,
(b, a) -> b.put(a.name(), a),
(b1, b2) -> b1.putAll(b2.build()))
.build();
Stream<Reply> methodReplies = stream(this.getClass().getMethods())
.filter(method -> method.getReturnType().equals(Reply.class))
.map(this::returnReply);
Stream<Reply> abilityReplies = abilities.values().stream()
.flatMap(ability -> ability.replies().stream());
replies = Stream.concat(methodReplies, abilityReplies).collect(
ImmutableList::<Reply>builder,
Builder::add,
(b1, b2) -> b1.addAll(b2.build()))
.build();
} catch (IllegalStateException e) {
BotLogger.error(TAG, "Duplicate names found while registering abilities. Make sure that the abilities declared don't clash with the reserved ones.", e);
throw propagate(e);
}
}
/**
* Invokes the method and retrieves its return {@link Ability}.
*
* @param method a method that returns an ability
* @return the ability returned by the method
*/
private Ability returnAbility(Method method) {
try {
return (Ability) method.invoke(this);
} catch (IllegalAccessException | InvocationTargetException e) {
BotLogger.error("Could not add ability", TAG, e);
throw propagate(e);
}
}
/**
* Invokes the method and retrieves its returned Reply.
*
* @param method a method that returns a reply
* @return the reply returned by the method
*/
private Reply returnReply(Method method) {
try {
return (Reply) method.invoke(this);
} catch (IllegalAccessException | InvocationTargetException e) {
BotLogger.error("Could not add reply", TAG, e);
throw propagate(e);
}
}
private void postConsumption(Pair<MessageContext, Ability> pair) {
ofNullable(pair.b().postAction())
.ifPresent(consumer -> consumer.accept(pair.a()));
}
Pair<MessageContext, Ability> consumeUpdate(Pair<MessageContext, Ability> pair) {
pair.b().action().accept(pair.a());
return pair;
}
Pair<MessageContext, Ability> getContext(Trio<Update, Ability, String[]> trio) {
Update update = trio.a();
User user = AbilityUtils.getUser(update);
return Pair.of(newContext(update, user, getChatId(update), trio.c()), trio.b());
}
boolean checkBlacklist(Update update) {
Integer id = AbilityUtils.getUser(update).getId();
return id == creatorId() || !blacklist().contains(id);
}
boolean checkInput(Trio<Update, Ability, String[]> trio) {
String[] tokens = trio.c();
int abilityTokens = trio.b().tokens();
boolean isOk = abilityTokens == 0 || (tokens.length > 0 && tokens.length == abilityTokens);
if (!isOk)
silent.send(
getLocalizedMessage(
CHECK_INPUT_FAIL,
AbilityUtils.getUser(trio.a()).getLanguageCode(),
abilityTokens, abilityTokens == 1 ? "input" : "inputs"),
getChatId(trio.a()));
return isOk;
}
boolean checkLocality(Trio<Update, Ability, String[]> trio) {
Update update = trio.a();
Locality locality = isUserMessage(update) ? USER : GROUP;
Locality abilityLocality = trio.b().locality();
boolean isOk = abilityLocality == ALL || locality == abilityLocality;
if (!isOk)
silent.send(
getLocalizedMessage(
CHECK_LOCALITY_FAIL,
AbilityUtils.getUser(trio.a()).getLanguageCode(),
abilityLocality.toString().toLowerCase()),
getChatId(trio.a()));
return isOk;
}
boolean checkPrivacy(Trio<Update, Ability, String[]> trio) {
Update update = trio.a();
User user = AbilityUtils.getUser(update);
Privacy privacy;
int id = user.getId();
privacy = getPrivacy(update, id);
boolean isOk = privacy.compareTo(trio.b().privacy()) >= 0;
if (!isOk)
silent.send(
getLocalizedMessage(
CHECK_PRIVACY_FAIL,
AbilityUtils.getUser(trio.a()).getLanguageCode()),
getChatId(trio.a()));
return isOk;
}
@NotNull
private Privacy getPrivacy(Update update, int id) {
return isCreator(id) ?
CREATOR : isAdmin(id) ?
ADMIN : (isGroupUpdate(update) || isSuperGroupUpdate(update)) && isGroupAdmin(update, id) ?
GROUP_ADMIN : PUBLIC;
}
private boolean isGroupAdmin(Update update, int id) {
GetChatAdministrators admins = new GetChatAdministrators().setChatId(getChatId(update));
return silent.execute(admins)
.orElse(new ArrayList<>()).stream()
.anyMatch(member -> member.getUser().getId() == id);
}
private boolean isCreator(int id) {
return id == creatorId();
}
private boolean isAdmin(Integer id) {
return admins().contains(id);
}
boolean validateAbility(Trio<Update, Ability, String[]> trio) {
return trio.b() != null;
}
Trio<Update, Ability, String[]> getAbility(Update update) {
// Handle updates without messages
// Passing through this function means that the global flags have passed
Message msg = update.getMessage();
if (!update.hasMessage() || !msg.hasText())
return Trio.of(update, abilities.get(DEFAULT), new String[]{});
String[] tokens = msg.getText().split(" ");
if (tokens[0].startsWith("/")) {
String abilityToken = stripBotUsername(tokens[0].substring(1)).toLowerCase();
Ability ability = abilities.get(abilityToken);
tokens = Arrays.copyOfRange(tokens, 1, tokens.length);
return Trio.of(update, ability, tokens);
} else {
Ability ability = abilities.get(DEFAULT);
return Trio.of(update, ability, tokens);
}
}
private String stripBotUsername(String token) {
return compile(format("@%s", botUsername), CASE_INSENSITIVE)
.matcher(token)
.replaceAll("");
}
Update addUser(Update update) {
User endUser = AbilityUtils.getUser(update);
users().compute(endUser.getId(), (id, user) -> {
if (user == null) {
updateUserId(user, endUser);
return endUser;
}
if (!user.equals(endUser)) {
updateUserId(user, endUser);
return endUser;
}
return user;
});
db.commit();
return update;
}
private void updateUserId(User oldUser, User newUser) {
if (oldUser != null && oldUser.getUserName() != null) {
// Remove old username -> ID
userIds().remove(oldUser.getUserName());
}
if (newUser.getUserName() != null) {
// Add new mapping with the new username
userIds().put(newUser.getUserName().toLowerCase(), newUser.getId());
}
}
boolean filterReply(Update update) {
return replies.stream()
.filter(reply -> reply.isOkFor(update))
.map(reply -> {
reply.actOn(update);
return false;
})
.reduce(true, Boolean::logicalAnd);
}
boolean checkMessageFlags(Trio<Update, Ability, String[]> trio) {
Ability ability = trio.b();
Update update = trio.a();
// The following variable is required to avoid bug #JDK-8044546
BiFunction<Boolean, Predicate<Update>, Boolean> flagAnd = (flag, nextFlag) -> flag && nextFlag.test(update);
return ability.flags().stream()
.reduce(true, flagAnd, Boolean::logicalAnd);
}
private File downloadFileWithId(String fileId) throws TelegramApiException {
return sender.downloadFile(sender.execute(new GetFile().setFileId(fileId)));
}
private String escape(String username) {
return username.replace("_", "\\_");
public void onClosing() {
bot.onClosing();
}
}

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package org.telegram.abilitybots.api.bot;
import org.telegram.abilitybots.api.db.DBContext;
import org.telegram.telegrambots.api.methods.BotApiMethod;
import org.telegram.telegrambots.api.objects.Update;
import org.telegram.telegrambots.bots.DefaultBotOptions;
import org.telegram.telegrambots.bots.TelegramWebhookBot;
import org.telegram.telegrambots.exceptions.TelegramApiRequestException;
import org.telegram.telegrambots.generics.WebhookBot;
import static org.telegram.abilitybots.api.db.MapDBContext.onlineInstance;
/**
* A {@link WebhookBot}-flavor AbilityBot. It delegates all updates to a {@link TelegramWebhookBot} instance.
*
* @author Abbas Abou Daya
*/
public abstract class AbilityWebhookBot extends BaseAbilityBot implements WebhookBot {
private final TelegramWebhookBot bot;
protected AbilityWebhookBot(String botToken, String botUsername, String botPath, DBContext db, DefaultBotOptions botOptions) {
super(botToken, botUsername, db, botOptions);
bot = new TelegramWebhookBot() {
@Override
public BotApiMethod onWebhookUpdateReceived(Update update) {
AbilityWebhookBot.this.onUpdateReceived(update);
return null;
}
@Override
public String getBotUsername() {
return botUsername;
}
@Override
public String getBotToken() {
return botToken;
}
@Override
public String getBotPath() {
return botPath;
}
};
}
protected AbilityWebhookBot(String botToken, String botUsername, String botPath, DBContext db) {
this(botToken, botUsername, botPath, db, new DefaultBotOptions());
}
protected AbilityWebhookBot(String botToken, String botUsername, String botPath, DefaultBotOptions botOptions) {
this(botToken, botUsername, botPath, onlineInstance(botUsername), botOptions);
}
protected AbilityWebhookBot(String botToken, String botUsername, String botPath) {
this(botToken, botUsername, botPath, onlineInstance(botUsername));
}
@Override
public BotApiMethod onWebhookUpdateReceived(Update update) {
return bot.onWebhookUpdateReceived(update);
}
@Override
public void setWebhook(String url, String publicCertificatePath) throws TelegramApiRequestException {
bot.setWebhook(url, publicCertificatePath);
}
@Override
public String getBotPath() {
return bot.getBotPath();
}
}

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package org.telegram.abilitybots.api.bot;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableList.Builder;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ListMultimap;
import com.google.common.collect.Multimap;
import org.apache.commons.io.IOUtils;
import org.jetbrains.annotations.NotNull;
import org.telegram.abilitybots.api.db.DBContext;
import org.telegram.abilitybots.api.objects.*;
import org.telegram.abilitybots.api.sender.DefaultSender;
import org.telegram.abilitybots.api.sender.MessageSender;
import org.telegram.abilitybots.api.sender.SilentSender;
import org.telegram.abilitybots.api.util.AbilityUtils;
import org.telegram.abilitybots.api.util.Pair;
import org.telegram.abilitybots.api.util.Trio;
import org.telegram.telegrambots.api.methods.GetFile;
import org.telegram.telegrambots.api.methods.groupadministration.GetChatAdministrators;
import org.telegram.telegrambots.api.methods.send.SendDocument;
import org.telegram.telegrambots.api.objects.Message;
import org.telegram.telegrambots.api.objects.Update;
import org.telegram.telegrambots.api.objects.User;
import org.telegram.telegrambots.bots.DefaultBotOptions;
import org.telegram.telegrambots.bots.TelegramLongPollingBot;
import org.telegram.telegrambots.exceptions.TelegramApiException;
import org.telegram.telegrambots.logging.BotLogger;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.PrintStream;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.*;
import java.util.Map.Entry;
import java.util.function.BiFunction;
import java.util.function.Predicate;
import java.util.stream.Stream;
import static com.google.common.base.Strings.isNullOrEmpty;
import static com.google.common.collect.MultimapBuilder.hashKeys;
import static java.lang.String.format;
import static java.time.ZonedDateTime.now;
import static java.util.Arrays.stream;
import static java.util.Comparator.comparing;
import static java.util.Objects.nonNull;
import static java.util.Optional.ofNullable;
import static java.util.regex.Pattern.CASE_INSENSITIVE;
import static java.util.regex.Pattern.compile;
import static java.util.stream.Collectors.joining;
import static jersey.repackaged.com.google.common.base.Throwables.propagate;
import static org.apache.commons.lang3.StringUtils.isEmpty;
import static org.telegram.abilitybots.api.db.MapDBContext.onlineInstance;
import static org.telegram.abilitybots.api.objects.Ability.builder;
import static org.telegram.abilitybots.api.objects.Flag.*;
import static org.telegram.abilitybots.api.objects.Locality.*;
import static org.telegram.abilitybots.api.objects.MessageContext.newContext;
import static org.telegram.abilitybots.api.objects.Privacy.*;
import static org.telegram.abilitybots.api.util.AbilityMessageCodes.*;
import static org.telegram.abilitybots.api.util.AbilityUtils.*;
/**
* The <b>father</b> of all ability bots. Bots that need to utilize abilities need to extend this bot.
* <p>
* It's important to note that this bot strictly extends {@link TelegramLongPollingBot}.
* <p>
* All bots extending the {@link BaseAbilityBot} get implicit abilities:
* <ul>
* <li>/claim - Claims this bot</li>
* <ul>
* <li>Sets the user as the {@link Privacy#CREATOR} of the bot</li>
* <li>Only the user with the ID returned by {@link BaseAbilityBot#creatorId()} can genuinely claim the bot</li>
* </ul>
* <li>/report - reports all user-defined commands (abilities)</li>
* <ul>
* <li>The same format acceptable by BotFather</li>
* </ul>
* <li>/commands - returns a list of all possible bot commands based on the privacy of the requesting user</li>
* <li>/backup - returns a backup of the bot database</li>
* <li>/recover - recovers the database</li>
* <li>/promote <code>@username</code> - promotes user to bot admin</li>
* <li>/demote <code>@username</code> - demotes bot admin to user</li>
* <li>/ban <code>@username</code> - bans the user from accessing your bot commands and features</li>
* <li>/unban <code>@username</code> - lifts the ban from the user</li>
* </ul>
* <p>
* Additional information of the implicit abilities are present in the methods that declare them.
* <p>
* The two most important handles in the BaseAbilityBot are the {@link DBContext} <b><code>db</code></b> and the {@link MessageSender} <b><code>sender</code></b>.
* All bots extending BaseAbilityBot can use both handles in their update consumers.
*
* @author Abbas Abou Daya
*/
public abstract class BaseAbilityBot extends TelegramLongPollingBot {
private static final String TAG = BaseAbilityBot.class.getSimpleName();
// DB objects
public static final String ADMINS = "ADMINS";
public static final String USERS = "USERS";
public static final String USER_ID = "USER_ID";
public static final String BLACKLIST = "BLACKLIST";
// Factory commands
protected static final String DEFAULT = "default";
protected static final String CLAIM = "claim";
protected static final String BAN = "ban";
protected static final String PROMOTE = "promote";
protected static final String DEMOTE = "demote";
protected static final String UNBAN = "unban";
protected static final String BACKUP = "backup";
protected static final String RECOVER = "recover";
protected static final String COMMANDS = "commands";
protected static final String REPORT = "report";
// DB and sender
protected final DBContext db;
protected MessageSender sender;
protected SilentSender silent;
// Bot token and username
private final String botToken;
private final String botUsername;
// Ability registry
private Map<String, Ability> abilities;
// Reply registry
private List<Reply> replies;
public abstract int creatorId();
protected BaseAbilityBot(String botToken, String botUsername, DBContext db, DefaultBotOptions botOptions) {
super(botOptions);
this.botToken = botToken;
this.botUsername = botUsername;
this.db = db;
this.sender = new DefaultSender(this);
silent = new SilentSender(sender);
registerAbilities();
}
/**
* @return the map of ID -> User
*/
protected Map<Integer, User> users() {
return db.getMap(USERS);
}
/**
* @return the map of Username -> ID
*/
protected Map<String, Integer> userIds() {
return db.getMap(USER_ID);
}
/**
* @return a blacklist containing all the IDs of the banned users
*/
protected Set<Integer> blacklist() {
return db.getSet(BLACKLIST);
}
/**
* @return an admin set of all the IDs of bot administrators
*/
protected Set<Integer> admins() {
return db.getSet(ADMINS);
}
/**
* @return the immutable map of String -> Ability
*/
public Map<String, Ability> abilities() {
return abilities;
}
/**
* @return the immutable list carrying the embedded replies
*/
public List<Reply> replies() {
return replies;
}
/**
* This method contains the stream of actions that are applied on any update.
* <p>
* It will correctly handle addition of users into the DB and the execution of abilities and replies.
*
* @param update the update received by Telegram's API
*/
@Override
public void onUpdateReceived(Update update) {
BotLogger.info(format("New update [%s] received at %s", update.getUpdateId(), now()), format("%s - %s", TAG, botUsername));
BotLogger.info(update.toString(), TAG);
long millisStarted = System.currentTimeMillis();
Stream.of(update)
.filter(this::checkGlobalFlags)
.filter(this::checkBlacklist)
.map(this::addUser)
.filter(this::filterReply)
.map(this::getAbility)
.filter(this::validateAbility)
.filter(this::checkPrivacy)
.filter(this::checkLocality)
.filter(this::checkInput)
.filter(this::checkMessageFlags)
.map(this::getContext)
.map(this::consumeUpdate)
.forEach(this::postConsumption);
long processingTime = System.currentTimeMillis() - millisStarted;
BotLogger.info(format("Processing of update [%s] ended at %s%n---> Processing time: [%d ms] <---%n", update.getUpdateId(), now(), processingTime), format("%s - %s", TAG, botUsername));
}
@Override
public String getBotToken() {
return botToken;
}
@Override
public String getBotUsername() {
return botUsername;
}
/**
* Test the update against the provided global flags. The default implementation is a passthrough to all updates.
* <p>
* This method should be <b>overridden</b> if the user wants to restrict bot usage to only certain updates.
*
* @param update a Telegram {@link Update}
* @return <tt>true</tt> if the update satisfies the global flags
*/
protected boolean checkGlobalFlags(Update update) {
return true;
}
/**
* Gets the user with the specified username.
*
* @param username the username of the required user
* @return the user
*/
protected User getUser(String username) {
Integer id = userIds().get(username.toLowerCase());
if (id == null) {
throw new IllegalStateException(format("Could not find ID corresponding to username [%s]", username));
}
return getUser(id);
}
/**
* Gets the user with the specified ID.
*
* @param id the id of the required user
* @return the user
*/
protected User getUser(int id) {
User user = users().get(id);
if (user == null) {
throw new IllegalStateException(format("Could not find user corresponding to id [%d]", id));
}
return user;
}
/**
* Gets the user with the specified username. If user was not found, the bot will send a message on Telegram.
*
* @param username the username of the required user
* @param ctx the message context with the originating user
* @return the id of the user
*/
protected int getUserIdSendError(String username, MessageContext ctx) {
try {
return getUser(username).getId();
} catch (IllegalStateException ex) {
silent.send(getLocalizedMessage(USER_NOT_FOUND, ctx.user().getLanguageCode(), username), ctx.chatId());
throw propagate(ex);
}
}
/**
* <p>
* Format of the report:
* <p>
* [command1] - [description1]
* <p>
* [command2] - [description2]
* <p>
* ...
* <p>
* Once you invoke it, the bot will send the available commands to the chat. This is a public ability so anyone can invoke it.
* <p>
* Usage: <code>/commands</code>
*
* @return the ability to report commands defined by the child bot.
*/
public Ability reportCommands() {
return builder()
.name(REPORT)
.locality(ALL)
.privacy(CREATOR)
.input(0)
.action(ctx -> {
String commands = abilities.entrySet().stream()
.filter(entry -> nonNull(entry.getValue().info()))
.map(entry -> {
String name = entry.getValue().name();
String info = entry.getValue().info();
return format("%s - %s", name, info);
})
.sorted()
.reduce((a, b) -> format("%s%n%s", a, b))
.orElse(getLocalizedMessage(ABILITY_COMMANDS_NOT_FOUND, ctx.user().getLanguageCode()));
silent.send(commands, ctx.chatId());
})
.build();
}
/**
* Default format:
* <p>
* PUBLIC
* <p>
* [command1] - [description1]
* <p>
* [command2] - [description2]
* <p>
* GROUP_ADMIN
* <p>
* [command1] - [description1]
* <p>
* ...
*
* @return the ability to print commands based on the privacy of the requesting user
*/
public Ability commands() {
return builder()
.name(COMMANDS)
.locality(USER)
.privacy(PUBLIC)
.input(0)
.action(ctx -> {
Privacy privacy = getPrivacy(ctx.update(), ctx.user().getId());
ListMultimap<Privacy, String> abilitiesPerPrivacy = abilities.entrySet().stream()
.map(entry -> {
String name = entry.getValue().name();
String info = entry.getValue().info();
if (!isEmpty(info))
return Pair.of(entry.getValue().privacy(), format("/%s - %s", name, info));
return Pair.of(entry.getValue().privacy(), format("/%s", name));
})
.sorted(comparing(Pair::b))
.collect(() -> hashKeys().arrayListValues().build(),
(map, pair) -> map.put(pair.a(), pair.b()),
Multimap::putAll);
String commands = abilitiesPerPrivacy.asMap().entrySet().stream()
.filter(entry -> privacy.compareTo(entry.getKey()) >= 0)
.sorted(comparing(Entry::getKey))
.map(entry ->
entry.getValue().stream()
.reduce(entry.getKey().toString(), (a, b) -> format("%s\n%s", a, b))
)
.collect(joining("\n"));
if (commands.isEmpty())
commands = getLocalizedMessage(ABILITY_COMMANDS_NOT_FOUND, ctx.user().getLanguageCode());
silent.send(commands, ctx.chatId());
})
.build();
}
/**
* This backup ability returns the object defined by {@link DBContext#backup()} as a message document.
* <p>
* This is a high-profile ability and is restricted to the CREATOR only.
* <p>
* Usage: <code>/backup</code>
*
* @return the ability to back-up the database of the bot
*/
public Ability backupDB() {
return builder()
.name(BACKUP)
.locality(USER)
.privacy(CREATOR)
.input(0)
.action(ctx -> {
File backup = new File("backup.json");
try (PrintStream printStream = new PrintStream(backup)) {
printStream.print(db.backup());
sender.sendDocument(new SendDocument()
.setNewDocument(backup)
.setChatId(ctx.chatId())
);
} catch (FileNotFoundException e) {
BotLogger.error("Error while fetching backup", TAG, e);
} catch (TelegramApiException e) {
BotLogger.error("Error while sending document/backup file", TAG, e);
}
})
.build();
}
/**
* Recovers the bot database using {@link DBContext#recover(Object)}.
* <p>
* The bot recovery process hugely depends on the implementation of the recovery method of {@link DBContext}.
* <p>
* Usage: <code>/recover</code>
*
* @return the ability to recover the database of the bot
*/
public Ability recoverDB() {
return builder()
.name(RECOVER)
.locality(USER)
.privacy(CREATOR)
.input(0)
.action(ctx -> silent.forceReply(
getLocalizedMessage(ABILITY_RECOVER_MESSAGE, ctx.user().getLanguageCode()), ctx.chatId()))
.reply(update -> {
String replyToMsg = update.getMessage().getReplyToMessage().getText();
String recoverMessage = getLocalizedMessage(ABILITY_RECOVER_MESSAGE, AbilityUtils.getUser(update).getLanguageCode());
if (!replyToMsg.equals(recoverMessage))
return;
String fileId = update.getMessage().getDocument().getFileId();
try (FileReader reader = new FileReader(downloadFileWithId(fileId))) {
String backupData = IOUtils.toString(reader);
if (db.recover(backupData)) {
send(ABILITY_RECOVER_SUCCESS, update);
} else {
send(ABILITY_RECOVER_FAIL, update);
}
} catch (Exception e) {
BotLogger.error("Could not recover DB from backup", TAG, e);
send(ABILITY_RECOVER_ERROR, update);
}
}, MESSAGE, DOCUMENT, REPLY)
.build();
}
/**
* Banned users are accumulated in the blacklist. Use {@link DBContext#getSet(String)} with name specified by {@link BaseAbilityBot#BLACKLIST}.
* <p>
* Usage: <code>/ban @username</code>
* <p>
* <u>Note that admins who try to ban the creator, get banned.</u>
*
* @return the ability to ban the user from any kind of <b>bot interaction</b>
*/
public Ability banUser() {
return builder()
.name(BAN)
.locality(ALL)
.privacy(ADMIN)
.input(1)
.action(ctx -> {
String username = stripTag(ctx.firstArg());
int userId = getUserIdSendError(username, ctx);
String bannedUser;
// Protection from abuse
if (userId == creatorId()) {
userId = ctx.user().getId();
bannedUser = isNullOrEmpty(ctx.user().getUserName()) ? addTag(ctx.user().getUserName()) : shortName(ctx.user());
} else {
bannedUser = addTag(username);
}
Set<Integer> blacklist = blacklist();
if (blacklist.contains(userId))
sendMd(ABILITY_BAN_FAIL, ctx, escape(bannedUser));
else {
blacklist.add(userId);
sendMd(ABILITY_BAN_SUCCESS, ctx, escape(bannedUser));
}
})
.post(commitTo(db))
.build();
}
/**
* Usage: <code>/unban @username</code>
*
* @return the ability to unban a user
*/
public Ability unbanUser() {
return builder()
.name(UNBAN)
.locality(ALL)
.privacy(ADMIN)
.input(1)
.action(ctx -> {
String username = stripTag(ctx.firstArg());
Integer userId = getUserIdSendError(username, ctx);
Set<Integer> blacklist = blacklist();
if (!blacklist.remove(userId))
silent.sendMd(getLocalizedMessage(ABILITY_UNBAN_FAIL, ctx.user().getLanguageCode(), escape(username)), ctx.chatId());
else {
silent.sendMd(getLocalizedMessage(ABILITY_UNBAN_SUCCESS, ctx.user().getLanguageCode(), escape(username)), ctx.chatId());
}
})
.post(commitTo(db))
.build();
}
/**
* @return the ability to promote a user to a bot admin
*/
public Ability promoteAdmin() {
return builder()
.name(PROMOTE)
.locality(ALL)
.privacy(ADMIN)
.input(1)
.action(ctx -> {
String username = stripTag(ctx.firstArg());
Integer userId = getUserIdSendError(username, ctx);
Set<Integer> admins = admins();
if (admins.contains(userId))
sendMd(ABILITY_PROMOTE_FAIL, ctx, escape(username));
else {
admins.add(userId);
sendMd(ABILITY_PROMOTE_SUCCESS, ctx, escape(username));
}
}).post(commitTo(db))
.build();
}
/**
* @return the ability to demote an admin to a user
*/
public Ability demoteAdmin() {
return builder()
.name(DEMOTE)
.locality(ALL)
.privacy(ADMIN)
.input(1)
.action(ctx -> {
String username = stripTag(ctx.firstArg());
Integer userId = getUserIdSendError(username, ctx);
Set<Integer> admins = admins();
if (admins.remove(userId)) {
sendMd(ABILITY_DEMOTE_SUCCESS, ctx, escape(username));
} else {
sendMd(ABILITY_DEMOTE_FAIL, ctx, escape(username));
}
})
.post(commitTo(db))
.build();
}
/**
* Regular users and admins who try to claim the bot will get <b>banned</b>.
*
* @return the ability to claim yourself as the master and creator of the bot
*/
public Ability claimCreator() {
return builder()
.name(CLAIM)
.locality(ALL)
.privacy(CREATOR)
.input(0)
.action(ctx -> {
Set<Integer> admins = admins();
int id = creatorId();
if (admins.contains(id))
send(ABILITY_CLAIM_FAIL, ctx);
else {
admins.add(id);
send(ABILITY_CLAIM_SUCCESS, ctx);
}
})
.post(commitTo(db))
.build();
}
private Optional<Message> send(String message, MessageContext ctx, String... args) {
return silent.send(getLocalizedMessage(message, ctx.user().getLanguageCode(), args), ctx.chatId());
}
private Optional<Message> sendMd(String message, MessageContext ctx, String... args) {
return silent.sendMd(getLocalizedMessage(message, ctx.user().getLanguageCode(), args), ctx.chatId());
}
private Optional<Message> send(String message, Update upd) {
Long chatId = upd.getMessage().getChatId();
return silent.send(getLocalizedMessage(message, AbilityUtils.getUser(upd).getLanguageCode()), chatId);
}
/**
* Registers the declared abilities using method reflection. Also, replies are accumulated using the built abilities and standalone methods that return a Reply.
* <p>
* <b>Only abilities and replies with the <u>public</u> accessor are registered!</b>
*/
private void registerAbilities() {
try {
abilities = stream(this.getClass().getMethods())
.filter(method -> method.getReturnType().equals(Ability.class))
.map(this::returnAbility)
.collect(ImmutableMap::<String, Ability>builder,
(b, a) -> b.put(a.name(), a),
(b1, b2) -> b1.putAll(b2.build()))
.build();
Stream<Reply> methodReplies = stream(this.getClass().getMethods())
.filter(method -> method.getReturnType().equals(Reply.class))
.map(this::returnReply);
Stream<Reply> abilityReplies = abilities.values().stream()
.flatMap(ability -> ability.replies().stream());
replies = Stream.concat(methodReplies, abilityReplies).collect(
ImmutableList::<Reply>builder,
Builder::add,
(b1, b2) -> b1.addAll(b2.build()))
.build();
} catch (IllegalStateException e) {
BotLogger.error(TAG, "Duplicate names found while registering abilities. Make sure that the abilities declared don't clash with the reserved ones.", e);
throw propagate(e);
}
}
/**
* Invokes the method and retrieves its return {@link Ability}.
*
* @param method a method that returns an ability
* @return the ability returned by the method
*/
private Ability returnAbility(Method method) {
try {
return (Ability) method.invoke(this);
} catch (IllegalAccessException | InvocationTargetException e) {
BotLogger.error("Could not add ability", TAG, e);
throw propagate(e);
}
}
/**
* Invokes the method and retrieves its returned Reply.
*
* @param method a method that returns a reply
* @return the reply returned by the method
*/
private Reply returnReply(Method method) {
try {
return (Reply) method.invoke(this);
} catch (IllegalAccessException | InvocationTargetException e) {
BotLogger.error("Could not add reply", TAG, e);
throw propagate(e);
}
}
private void postConsumption(Pair<MessageContext, Ability> pair) {
ofNullable(pair.b().postAction())
.ifPresent(consumer -> consumer.accept(pair.a()));
}
Pair<MessageContext, Ability> consumeUpdate(Pair<MessageContext, Ability> pair) {
pair.b().action().accept(pair.a());
return pair;
}
Pair<MessageContext, Ability> getContext(Trio<Update, Ability, String[]> trio) {
Update update = trio.a();
User user = AbilityUtils.getUser(update);
return Pair.of(newContext(update, user, getChatId(update), trio.c()), trio.b());
}
boolean checkBlacklist(Update update) {
Integer id = AbilityUtils.getUser(update).getId();
return id == creatorId() || !blacklist().contains(id);
}
boolean checkInput(Trio<Update, Ability, String[]> trio) {
String[] tokens = trio.c();
int abilityTokens = trio.b().tokens();
boolean isOk = abilityTokens == 0 || (tokens.length > 0 && tokens.length == abilityTokens);
if (!isOk)
silent.send(
getLocalizedMessage(
CHECK_INPUT_FAIL,
AbilityUtils.getUser(trio.a()).getLanguageCode(),
abilityTokens, abilityTokens == 1 ? "input" : "inputs"),
getChatId(trio.a()));
return isOk;
}
boolean checkLocality(Trio<Update, Ability, String[]> trio) {
Update update = trio.a();
Locality locality = isUserMessage(update) ? USER : GROUP;
Locality abilityLocality = trio.b().locality();
boolean isOk = abilityLocality == ALL || locality == abilityLocality;
if (!isOk)
silent.send(
getLocalizedMessage(
CHECK_LOCALITY_FAIL,
AbilityUtils.getUser(trio.a()).getLanguageCode(),
abilityLocality.toString().toLowerCase()),
getChatId(trio.a()));
return isOk;
}
boolean checkPrivacy(Trio<Update, Ability, String[]> trio) {
Update update = trio.a();
User user = AbilityUtils.getUser(update);
Privacy privacy;
int id = user.getId();
privacy = getPrivacy(update, id);
boolean isOk = privacy.compareTo(trio.b().privacy()) >= 0;
if (!isOk)
silent.send(
getLocalizedMessage(
CHECK_PRIVACY_FAIL,
AbilityUtils.getUser(trio.a()).getLanguageCode()),
getChatId(trio.a()));
return isOk;
}
@NotNull
private Privacy getPrivacy(Update update, int id) {
return isCreator(id) ?
CREATOR : isAdmin(id) ?
ADMIN : (isGroupUpdate(update) || isSuperGroupUpdate(update)) && isGroupAdmin(update, id) ?
GROUP_ADMIN : PUBLIC;
}
private boolean isGroupAdmin(Update update, int id) {
GetChatAdministrators admins = new GetChatAdministrators().setChatId(getChatId(update));
return silent.execute(admins)
.orElse(new ArrayList<>()).stream()
.anyMatch(member -> member.getUser().getId() == id);
}
private boolean isCreator(int id) {
return id == creatorId();
}
private boolean isAdmin(Integer id) {
return admins().contains(id);
}
boolean validateAbility(Trio<Update, Ability, String[]> trio) {
return trio.b() != null;
}
Trio<Update, Ability, String[]> getAbility(Update update) {
// Handle updates without messages
// Passing through this function means that the global flags have passed
Message msg = update.getMessage();
if (!update.hasMessage() || !msg.hasText())
return Trio.of(update, abilities.get(DEFAULT), new String[]{});
String[] tokens = msg.getText().split(" ");
if (tokens[0].startsWith("/")) {
String abilityToken = stripBotUsername(tokens[0].substring(1)).toLowerCase();
Ability ability = abilities.get(abilityToken);
tokens = Arrays.copyOfRange(tokens, 1, tokens.length);
return Trio.of(update, ability, tokens);
} else {
Ability ability = abilities.get(DEFAULT);
return Trio.of(update, ability, tokens);
}
}
private String stripBotUsername(String token) {
return compile(format("@%s", botUsername), CASE_INSENSITIVE)
.matcher(token)
.replaceAll("");
}
Update addUser(Update update) {
User endUser = AbilityUtils.getUser(update);
users().compute(endUser.getId(), (id, user) -> {
if (user == null) {
updateUserId(user, endUser);
return endUser;
}
if (!user.equals(endUser)) {
updateUserId(user, endUser);
return endUser;
}
return user;
});
db.commit();
return update;
}
private void updateUserId(User oldUser, User newUser) {
if (oldUser != null && oldUser.getUserName() != null) {
// Remove old username -> ID
userIds().remove(oldUser.getUserName());
}
if (newUser.getUserName() != null) {
// Add new mapping with the new username
userIds().put(newUser.getUserName().toLowerCase(), newUser.getId());
}
}
boolean filterReply(Update update) {
return replies.stream()
.filter(reply -> reply.isOkFor(update))
.map(reply -> {
reply.actOn(update);
return false;
})
.reduce(true, Boolean::logicalAnd);
}
boolean checkMessageFlags(Trio<Update, Ability, String[]> trio) {
Ability ability = trio.b();
Update update = trio.a();
// The following variable is required to avoid bug #JDK-8044546
BiFunction<Boolean, Predicate<Update>, Boolean> flagAnd = (flag, nextFlag) -> flag && nextFlag.test(update);
return ability.flags().stream()
.reduce(true, flagAnd, Boolean::logicalAnd);
}
private File downloadFileWithId(String fileId) throws TelegramApiException {
return sender.downloadFile(sender.execute(new GetFile().setFileId(fileId)));
}
private String escape(String username) {
return username.replace("_", "\\_");
}
}

4
telegrambots-abilities/src/main/java/org/telegram/abilitybots/api/db/DBContext.java
View File

@ -1,6 +1,6 @@
package org.telegram.abilitybots.api.db;
import org.telegram.abilitybots.api.bot.AbilityBot;
import org.telegram.abilitybots.api.bot.BaseAbilityBot;
import org.telegram.telegrambots.api.objects.Update;
import java.io.Closeable;
@ -12,7 +12,7 @@ import java.util.Set;
* This interface represents the high-level methods exposed to the user when handling an {@link Update}.
* Example usage:
* <p><code>Ability.builder().action(ctx -> {db.getSet(USERS); doSomething();})* </code></p>
* {@link AbilityBot} contains a handle on the <code>db</code> that the user can use inside his declared abilities.
* {@link BaseAbilityBot} contains a handle on the <code>db</code> that the user can use inside his declared abilities.
*
* @author Abbas Abou Daya
*/

2
telegrambots-abilities/src/main/java/org/telegram/abilitybots/api/db/MapDBContext.java
View File

@ -20,7 +20,7 @@ import static java.util.Objects.isNull;
import static java.util.stream.Collectors.toMap;
import static java.util.stream.StreamSupport.stream;
import static org.mapdb.Serializer.JAVA;
import static org.telegram.abilitybots.api.bot.AbilityBot.USERS;
import static org.telegram.abilitybots.api.bot.BaseAbilityBot.USERS;
/**
* An implementation of {@link DBContext} that relies on a {@link DB}.

6
telegrambots-abilities/src/test/java/org/telegram/abilitybots/api/db/MapDBContextTest.java
View File

@ -13,15 +13,15 @@ import static com.google.common.collect.Maps.newHashMap;
import static com.google.common.collect.Sets.newHashSet;
import static java.lang.String.format;
import static org.junit.Assert.*;
import static org.telegram.abilitybots.api.bot.AbilityBot.USERS;
import static org.telegram.abilitybots.api.bot.AbilityBot.USER_ID;
import static org.telegram.abilitybots.api.bot.AbilityBotTest.CREATOR;
import static org.telegram.abilitybots.api.bot.AbilityBotTest.USER;
import static org.telegram.abilitybots.api.db.MapDBContext.offlineInstance;
public class MapDBContextTest {
private static final String USERS = "USERS";
private static final String USER_ID = "USER_ID";
private static final String TEST = "TEST";
private DBContext db;
@Before