Telegram: display Juick links

2 files changed, 22 insertions, 0 deletions

diff --git a/src/main/java/com/juick/TelegramBotManager.java b/src/main/java/com/juick/TelegramBotManager.java
index dec0bd1d..53ef2f47 100644
--- a/src/main/java/com/juick/TelegramBotManager.java
+++ b/src/main/java/com/juick/TelegramBotManager.java
@@ -20,6 +20,7 @@ package com.juick;
 import com.juick.model.User;
 import com.juick.model.AnonymousUser;
 import com.juick.model.CommandResult;
+import com.juick.util.WebUtils;
 import com.juick.www.api.SystemActivity;
 import com.juick.util.HttpUtils;
 import com.juick.service.MessagesService;
@@ -206,6 +207,14 @@ public class TelegramBotManager implements NotificationListener {
                                 Tap to [log into website](%s) to get more info""", user_from.getName(), msgUrl);
                         telegramNotify(message.from().id(), msg, new com.juick.model.Message());
                     } else {
+                        var messageNumber = WebUtils.getMessageNumberFromUrl(webDomain, UriComponentsBuilder.fromUriString(text.trim()).build());
+                        if (messageNumber > 0) {
+                            var msg = messagesService.getMessage(messageNumber);
+                            if (msg.isPresent()) {
+                                telegramNotify(message.from().id(), formatTelegramMessage(msg.get()), msg.get());
+                                return;
+                            }
+                        }
                         Message replyMessage = message.replyToMessage();
                         if (replyMessage != null) {
                             MessageEntity[] entities = replyMessage.entities();
diff --git a/src/main/java/com/juick/util/WebUtils.java b/src/main/java/com/juick/util/WebUtils.java
index a8e690ed..b9f8ca1a 100644
--- a/src/main/java/com/juick/util/WebUtils.java
+++ b/src/main/java/com/juick/util/WebUtils.java
@@ -17,6 +17,9 @@
 
 package com.juick.util;
 
+import org.apache.commons.lang3.math.NumberUtils;
+import org.springframework.web.util.UriComponents;
+
 import java.util.regex.Pattern;
 
 /**
@@ -63,4 +66,14 @@ public class WebUtils {
                 .replaceAll("\\'", "\\\\'")
                 .replaceAll("=", "\\\\\\\\=");
     }
+
+    public static int getMessageNumberFromUrl(String ourDomain, UriComponents url) {
+        return getMessageNumberFromUrl(ourDomain, url, false);
+    }
+    public static int getMessageNumberFromUrl(String ourDomain, UriComponents url, boolean legacyOnly) {
+        if (url.getPath() == null || url.getHost() == null) return -1;
+        var messageNumberPathSegment = legacyOnly ? url.getPath().substring(1)
+                : url.getPath().substring(url.getPath().lastIndexOf("/") + 1);
+        return url.getHost().equals(ourDomain) ? NumberUtils.toInt(messageNumberPathSegment, -1) : -1;
+    }
 }