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package com.juick.server;
import com.github.messenger4j.Messenger;
import com.github.messenger4j.exception.MessengerApiException;
import com.github.messenger4j.exception.MessengerIOException;
import com.github.messenger4j.exception.MessengerVerificationException;
import com.github.messenger4j.send.MessagePayload;
import com.github.messenger4j.send.MessagingType;
import com.github.messenger4j.send.message.TemplateMessage;
import com.github.messenger4j.send.message.TextMessage;
import com.github.messenger4j.send.message.template.ButtonTemplate;
import com.github.messenger4j.send.message.template.button.UrlButton;
import com.github.messenger4j.userprofile.UserProfile;
import com.github.messenger4j.webhook.event.TextMessageEvent;
import com.juick.Message;
import com.juick.User;
import com.juick.server.component.MessageEvent;
import com.juick.service.MessagesService;
import com.juick.service.MessengerService;
import com.juick.service.SubscriptionService;
import com.juick.service.UserService;
import com.juick.util.MessageUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.ApplicationListener;
import org.springframework.stereotype.Component;
import javax.annotation.Nonnull;
import javax.annotation.PostConstruct;
import javax.inject.Inject;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URL;
import java.time.Instant;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import static com.juick.formatters.PlainTextFormatter.formatPost;
import static com.juick.formatters.PlainTextFormatter.formatUrl;
@Component
public class MessengerManager implements ApplicationListener<MessageEvent> {
private static final Logger logger = LoggerFactory.getLogger(MessengerManager.class);
@Inject
private MessagesService messagesService;
@Inject
private UserService userService;
@Inject
private MessengerService messengerService;
@Inject
private CommandsManager commandsManager;
@Value("${fb_page_access_token:12345678}")
private String facebookPageAccessToken;
@Value("${fb_verify_token:12345678}")
private String facebookVerifyToken;
@Value("${fb_secret:12345678}")
private String facebookSecret;
private Messenger messenger;
@PostConstruct
public void init() {
messenger = Messenger.create(facebookPageAccessToken, facebookSecret, facebookVerifyToken);
}
public String getFacebookVerifyToken() {
return facebookVerifyToken;
}
public void processUpdate(String signature , String data) throws MessengerVerificationException {
messenger.onReceiveEvents(data, Optional.of(signature), event -> {
final String senderId = event.senderId();
final Instant timestamp = event.timestamp();
User user_from = userService.getUserByUID(messengerService.getUserId(senderId)).orElse(new User());
logger.info("Found juick user {}", user_from.getUid());
if (user_from.getUid() == 0) {
try {
UserProfile profile = messenger.queryUserProfile(senderId);
signupNotify(senderId, messengerService.getSignUpHash(senderId, profile.firstName()));
} catch (MessengerApiException | MessengerIOException | MalformedURLException e) {
logger.warn("messenger profile error", e);
try {
signupNotify(senderId, messengerService.getSignUpHash(senderId, "anonymous"));
} catch (MalformedURLException | MessengerApiException | MessengerIOException e1) {
logger.warn("signup error", e1);
}
}
} else {
if (event.isTextMessageEvent()) {
final TextMessageEvent textMessageEvent = event.asTextMessageEvent();
final String messageId = textMessageEvent.messageId();
final String text = textMessageEvent.text();
logger.info("Received text message from '{}' at '{}' with content: {} (mid: {})",
senderId, timestamp, text, messageId);
try {
commandsManager.processCommand(user_from, text, URI.create(StringUtils.EMPTY));
} catch (Exception e) {
logger.warn("messenger error", e);
}
messengerNotify(senderId, "Message sent", null);
}
}
});
}
@Override
public void onApplicationEvent(@Nonnull MessageEvent event) {
Message msg = event.getMessage();
List<User> subscribedUsers = event.getUsers();
if (msg.isService()) {
return;
}
if (!MessageUtils.isPM(msg)) {
String subject = formatPost(msg);
subscribedUsers
.forEach(user -> messengerService.getSenderId(user)
.ifPresent(t -> messengerNotify(t, subject, formatUrl(msg))));
}
}
private void messengerNotify(String messengerUser, String text, String url) {
try {
if (!StringUtils.isEmpty(url)) {
final UrlButton showMessage = UrlButton.create("VIEW MESSAGE", new URL(url));
ButtonTemplate template = ButtonTemplate.create(text, Collections.singletonList(showMessage));
messenger.send(MessagePayload.create(messengerUser, MessagingType.NON_PROMOTIONAL_SUBSCRIPTION, TemplateMessage.create(template)));
} else {
messenger.send(MessagePayload.create(messengerUser, MessagingType.NON_PROMOTIONAL_SUBSCRIPTION, TextMessage.create(text)));
}
} catch (MessengerApiException | MessengerIOException | MalformedURLException e) {
logger.warn("messenger error", e);
}
}
private void signupNotify(String messengerUser, String hash) throws MalformedURLException, MessengerApiException, MessengerIOException {
final UrlButton urlButton = UrlButton.create("LOGIN",
new URL("https://juick.com/signup?type=messenger&hash=" + hash));
ButtonTemplate template = ButtonTemplate.create("Login to receive notifications",
Collections.singletonList(urlButton));
messenger.send(MessagePayload.create(messengerUser, MessagingType.RESPONSE, TemplateMessage.create(template)));
}
}
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