Implement sending link previews

[signal-cli] / lib / src / main / java / org / asamk / signal / manager / ManagerImpl.java

diff --git a/lib/src/main/java/org/asamk/signal/manager/ManagerImpl.java b/lib/src/main/java/org/asamk/signal/manager/ManagerImpl.java
index 40bd7240a9da9485f22a4880adb65ce39c7ea161..b5dcb5e0de851ad1e4c4a84b0f8a71bb373f390c 100644 (file)
--- a/lib/src/main/java/org/asamk/signal/manager/ManagerImpl.java
+++ b/lib/src/main/java/org/asamk/signal/manager/ManagerImpl.java
@@ -65,6 +65,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.whispersystems.signalservice.api.SignalSessionLock;
 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
+import org.whispersystems.signalservice.api.messages.SignalServicePreview;
 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
 import org.whispersystems.signalservice.api.push.ACI;
@@ -551,9 +552,8 @@ class ManagerImpl implements Manager {
             final SignalServiceDataMessage.Builder messageBuilder, final Message message
     ) throws AttachmentInvalidException, IOException, UnregisteredRecipientException, InvalidStickerException {
         messageBuilder.withBody(message.messageText());
-        final var attachments = message.attachments();
-        if (attachments != null) {
-            messageBuilder.withAttachments(context.getAttachmentHelper().uploadAttachments(attachments));
+        if (message.attachments().size() > 0) {
+            messageBuilder.withAttachments(context.getAttachmentHelper().uploadAttachments(message.attachments()));
         }
         if (message.mentions().size() > 0) {
             messageBuilder.withMentions(resolveMentions(message.mentions()));
@@ -592,6 +592,19 @@ class ManagerImpl implements Manager {
                     manifestSticker.emoji(),
                     AttachmentUtils.createAttachmentStream(streamDetails, Optional.empty())));
         }
+        if (message.previews().size() > 0) {
+            final var previews = new ArrayList<SignalServicePreview>(message.previews().size());
+            for (final var p : message.previews()) {
+                final var image = p.image().isPresent() ? context.getAttachmentHelper()
+                        .uploadAttachment(p.image().get()) : null;
+                previews.add(new SignalServicePreview(p.url(),
+                        p.title(),
+                        p.description(),
+                        0,
+                        Optional.ofNullable(image)));
+            }
+            messageBuilder.withPreviews(previews);
+        }
     }
 
     private ArrayList<SignalServiceDataMessage.Mention> resolveMentions(final List<Message.Mention> mentionList) throws UnregisteredRecipientException {