api: Telegram posting

1 files changed, 181 insertions, 0 deletions

diff --git a/juick-api/src/main/java/com/juick/api/TelegramBotManager.java b/juick-api/src/main/java/com/juick/api/TelegramBotManager.java
new file mode 100644
index 00000000..e1910949
--- /dev/null
+++ b/juick-api/src/main/java/com/juick/api/TelegramBotManager.java
@@ -0,0 +1,181 @@
+/*
+ * Copyright (C) 2008-2017, Juick
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.juick.api;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.juick.service.MessagesService;
+import com.juick.service.TelegramService;
+import com.pengrad.telegrambot.Callback;
+import com.pengrad.telegrambot.TelegramBot;
+import com.pengrad.telegrambot.TelegramBotAdapter;
+import com.pengrad.telegrambot.model.request.InlineKeyboardButton;
+import com.pengrad.telegrambot.model.request.InlineKeyboardMarkup;
+import com.pengrad.telegrambot.request.SendMessage;
+import com.pengrad.telegrambot.request.SetWebhook;
+import com.pengrad.telegrambot.response.SendResponse;
+import org.apache.commons.lang3.StringUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+import org.springframework.web.socket.CloseStatus;
+import org.springframework.web.socket.PingMessage;
+import org.springframework.web.socket.TextMessage;
+import org.springframework.web.socket.WebSocketSession;
+import org.springframework.web.socket.handler.TextWebSocketHandler;
+
+import javax.annotation.PostConstruct;
+import javax.inject.Inject;
+import java.io.IOException;
+import java.util.List;
+
+import static com.juick.formatters.PlainTextFormatter.formatPost;
+import static com.juick.formatters.PlainTextFormatter.formatUrl;
+
+/**
+ * Created by vt on 12/05/16.
+ */
+@Component
+public class TelegramBotManager extends TextWebSocketHandler {
+    private static final Logger logger = LoggerFactory.getLogger(TelegramBotManager.class);
+
+    private TelegramBot bot;
+
+    @Value("${telegram_token}")
+    private String telegramToken;
+    @Inject
+    private TelegramService telegramService;
+    @Inject
+    private MessagesService messagesService;
+    @Inject
+    private ObjectMapper jsonMapper;
+
+    private WebSocketSession session;
+
+    @PostConstruct
+    public void init() {
+        if (StringUtils.isBlank(telegramToken)) {
+            logger.info("telegram token is not set, exiting");
+            return;
+        }
+        bot = TelegramBotAdapter.build(telegramToken);
+        try {
+            SetWebhook webhook = new SetWebhook().url("https://api.juick.com/tlgmbtwbhk");
+            if (!bot.execute(webhook).isOk()) {
+                logger.error("error setting webhook");
+            }
+        } catch (Exception e) {
+            logger.warn("couldn't initialize telegram bot", e);
+        }
+    }
+
+    @Override
+    public void afterConnectionEstablished(WebSocketSession session) throws Exception {
+        logger.info("WebSocket connected");
+        this.session = session;
+    }
+
+    @Override
+    public void afterConnectionClosed(WebSocketSession session, CloseStatus status) throws Exception {
+        logger.info("WebSocket disconnected with code {}: {}", status.getCode(), status.getReason());
+    }
+
+    @Scheduled(fixedRate = 30000)
+    public void ping() throws IOException {
+        if (session != null) {
+            logger.debug("Sending WebSocket ping");
+            session.sendMessage(new PingMessage());
+        }
+    }
+
+    @Override
+    protected void handleTextMessage(WebSocketSession session, TextMessage text) throws Exception {
+        com.juick.Message jmsg = jsonMapper.readValue(text.asBytes(), com.juick.Message.class);
+
+        if (logger.isInfoEnabled()) // prevent writeValueAsString execution if logger disabled
+            logger.info("got jmsg: {}", jsonMapper.writeValueAsString(jmsg));
+
+        String msgUrl = formatUrl(jmsg);
+        if (jmsg.getRid() == 0) {
+            String msg = formatPost(jmsg);
+
+            List<Long> users = telegramService.getSubscribers(jmsg.getUser().getUid());
+            List<Long> chats = telegramService.getChats();
+            // registered subscribed users
+
+            users.forEach(c -> telegramNotify(c, msg, msgUrl));
+            // anonymous
+            chats.stream().filter(u -> telegramService.getUser(u) == 0).forEach(c -> telegramNotify(c, msg, msgUrl));
+        } else {
+            // get quote
+            com.juick.Message msg = messagesService.getReply(jmsg.getMid(), jmsg.getRid());
+            String fmsg = formatPost(msg);
+            telegramService.getSubscribersToComments(jmsg.getMid(), jmsg.getUser().getUid()).forEach(c -> telegramNotify(c, fmsg, msgUrl));
+        }
+    }
+
+    public void telegramNotify(Long c, String msg, String msgUrl) {
+        SendMessage telegramMessage = new SendMessage(c, msg);
+        if (msgUrl != null) {
+            telegramMessage.replyMarkup(
+                    new InlineKeyboardMarkup(
+                            new InlineKeyboardButton[]{
+                                    new InlineKeyboardButton("See on Juick").url(msgUrl)
+                            }
+                    ));
+        }
+        bot.execute(telegramMessage, new Callback<SendMessage, SendResponse>() {
+            @Override
+            public void onResponse(SendMessage request, SendResponse response) {
+                logger.info("got response: {}", response.message());
+            }
+
+            @Override
+            public void onFailure(SendMessage request, IOException e) {
+                logger.warn("telegram failure", e);
+            }
+        });
+    }
+
+    public void telegramSignupNotify(Long telegramId, String hash) {
+        bot.execute(new SendMessage(telegramId,
+                "You are subscribed to all Juick messages. " +
+                        "Create or link an existing Juick account to control " +
+                        "what do you want to receive").replyMarkup(
+                new InlineKeyboardMarkup(
+                        new InlineKeyboardButton[]{
+                                new InlineKeyboardButton("SIGNUP").url("http://juick.com/signup?type=durov&hash=" +
+                                        hash)
+                        })), new Callback<SendMessage, SendResponse>() {
+            @Override
+            public void onResponse(SendMessage request, SendResponse response) {
+                logger.info("got response: {}", response.message());
+            }
+
+            @Override
+            public void onFailure(SendMessage request, IOException e) {
+                logger.warn("telegram failure", e);
+            }
+        });
+    }
+
+    public TelegramBot getBot() {
+        return bot;
+    }
+}