From 0f405c2e112ebd5dbb6be535bbadd1c4a109d341 Mon Sep 17 00:00:00 2001
From: Daniel Gultsch <daniel@gultsch.de>
Date: Sat, 17 Oct 2015 15:23:46 +0200
Subject: allow redownloading files from remote hosts. fixes #1504

---
 .../eu/siacs/conversations/http/HttpDownloadConnection.java | 13 +++++++++++--
 .../eu/siacs/conversations/ui/ConversationFragment.java     |  3 ++-
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java b/src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java
index 5fa7bf81..792a71e8 100644
--- a/src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java
+++ b/src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java
@@ -22,6 +22,7 @@ import eu.siacs.conversations.R;
 import eu.siacs.conversations.entities.DownloadableFile;
 import eu.siacs.conversations.entities.Message;
 import eu.siacs.conversations.entities.Transferable;
+import eu.siacs.conversations.entities.TransferablePlaceholder;
 import eu.siacs.conversations.persistance.FileBackend;
 import eu.siacs.conversations.services.AbstractConnectionManager;
 import eu.siacs.conversations.services.XmppConnectionService;
@@ -66,7 +67,11 @@ public class HttpDownloadConnection implements Transferable {
 		this.message = message;
 		this.message.setTransferable(this);
 		try {
-			mUrl = new URL(message.getBody());
+			if (message.hasFileOnRemoteHost()) {
+				mUrl = message.getFileParams().url;
+			} else {
+				mUrl = new URL(message.getBody());
+			}
 			String[] parts = mUrl.getPath().toLowerCase().split("\\.");
 			String lastPart = parts.length >= 1 ? parts[parts.length - 1] : null;
 			String secondToLast = parts.length >= 2 ? parts[parts.length -2] : null;
@@ -106,7 +111,11 @@ public class HttpDownloadConnection implements Transferable {
 
 	public void cancel() {
 		mHttpConnectionManager.finishConnection(this);
-		message.setTransferable(null);
+		if (message.isFileOrImage()) {
+			message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
+		} else {
+			message.setTransferable(null);
+		}
 		mXmppConnectionService.updateConversationUi();
 	}
 
diff --git a/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java b/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
index 64101539..b8a1a7a8 100644
--- a/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
+++ b/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
@@ -489,7 +489,8 @@ public class ConversationFragment extends Fragment implements EditMessage.Keyboa
 					|| m.treatAsDownloadable() == Message.Decision.MUST) {
 				copyUrl.setVisible(true);
 			}
-			if (m.getType() == Message.TYPE_TEXT && m.getTransferable() == null && m.treatAsDownloadable() != Message.Decision.NEVER) {
+			if ((m.getType() == Message.TYPE_TEXT && m.getTransferable() == null && m.treatAsDownloadable() != Message.Decision.NEVER)
+					|| (m.isFileOrImage() && m.getTransferable() instanceof TransferablePlaceholder && m.hasFileOnRemoteHost())){
 				downloadFile.setVisible(true);
 				downloadFile.setTitle(activity.getString(R.string.download_x_file,UIHelper.getFileDescriptionString(activity, m)));
 			}
-- 
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