send urls pointing to pgp encrypted files directly in body+oob

src/main/java/eu/siacs/conversations/generator/MessageGenerator.java

@@ -139,6 +139,11 @@ public class MessageGenerator extends AbstractGenerator {
 
 	public MessagePacket generatePgpChat(Message message) {
 		MessagePacket packet = preparePacket(message);
+		if (message.hasFileOnRemoteHost()) {
+			final String url = message.getFileParams().url.toString();
+			packet.setBody(url);
+			packet.addChild("x",Namespace.OOB).addChild("url").setContent(url);
+		} else {
 			if (Config.supportUnencrypted()) {
 				packet.setBody(PGP_FALLBACK_MESSAGE);
 			}
@@ -149,6 +154,7 @@ public class MessageGenerator extends AbstractGenerator {
 			}
 			packet.addChild("encryption", "urn:xmpp:eme:0")
 					.setAttribute("namespace", "jabber:x:encrypted");
+		}
 		return packet;
 	}
 

src/main/java/eu/siacs/conversations/http/HttpUploadConnection.java

@@ -197,27 +197,7 @@ public class HttpUploadConnection implements Transferable {
 					mXmppConnectionService.getFileBackend().updateMediaScanner(file);
 					message.setTransferable(null);
 					message.setCounterpart(message.getConversation().getJid().toBareJid());
-					if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
-						mXmppConnectionService.getPgpEngine().encrypt(message, new UiCallback<Message>() {
-							@Override
-							public void success(Message message) {
 					mXmppConnectionService.resendMessage(message, delayed);
-							}
-
-							@Override
-							public void error(int errorCode, Message object) {
-								Log.d(Config.LOGTAG,"pgp encryption failed");
-								fail("pgp encryption failed");
-							}
-
-							@Override
-							public void userInputRequried(PendingIntent pi, Message object) {
-								fail("pgp encryption failed");
-							}
-						});
-					} else {
-						mXmppConnectionService.resendMessage(message, delayed);
-					}
 				} else {
 					Log.d(Config.LOGTAG,"http upload failed because response code was "+code);
 					fail("http upload failed because response code was "+code);

src/main/java/eu/siacs/conversations/parser/MessageParser.java

@@ -415,7 +415,7 @@ public class MessageParser extends AbstractParser implements OnMessagePacketRece
 		}
 
 		if ((body != null || pgpEncrypted != null || axolotlEncrypted != null || oobUrl != null) && !isMucStatusMessage) {
-			Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, counterpart.toBareJid(), isTypeGroupChat, false, query);
+			final Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, counterpart.toBareJid(), isTypeGroupChat, false, query);
 			final boolean conversationMultiMode = conversation.getMode() == Conversation.MODE_MULTI;
 
 			if (serverMsgId == null) {
@@ -474,6 +474,9 @@ public class MessageParser extends AbstractParser implements OnMessagePacketRece
 			} else if (body == null && oobUrl != null) {
 				message = new Message(conversation, oobUrl, Message.ENCRYPTION_NONE, status);
 				message.setOob(true);
+				if (CryptoHelper.isPgpEncryptedUrl(oobUrl)) {
+					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
+				}
 			} else {
 				message = new Message(conversation, body, Message.ENCRYPTION_NONE, status);
 			}
@@ -483,7 +486,12 @@ public class MessageParser extends AbstractParser implements OnMessagePacketRece
 			message.setServerMsgId(serverMsgId);
 			message.setCarbon(isCarbon);
 			message.setTime(timestamp);
-			message.setOob(body != null && body.equals(oobUrl));
+			if (body != null && body.equals(oobUrl)) {
+				message.setOob(true);
+				if (CryptoHelper.isPgpEncryptedUrl(oobUrl)) {
+					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
+				}
+			}
 			message.markable = packet.hasChild("markable", "urn:xmpp:chat-markers:0");
 			if (conversationMultiMode) {
 				final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
@@ -624,7 +632,7 @@ public class MessageParser extends AbstractParser implements OnMessagePacketRece
 				}
 			}
 		} else if (!packet.hasChild("body")){ //no body
-			Conversation conversation = mXmppConnectionService.find(account, from.toBareJid());
+			final Conversation conversation = mXmppConnectionService.find(account, from.toBareJid());
 			if (isTypeGroupChat) {
 				if (packet.hasChild("subject")) {
 					if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {

src/main/java/eu/siacs/conversations/ui/adapter/MessageAdapter.java

@@ -185,7 +185,7 @@ public class MessageAdapter extends ArrayAdapter<Message> implements CopyTextVie
 				filesize = params.size / (1024 * 1024)+ " MiB";
 			} else if (params.size >= 1024) {
 				filesize = params.size / 1024 + " KiB";
-			} else {
+			} else if (params.size > 0){
 				filesize = params.size + " B";
 			}
 			if (message.getTransferable() != null && message.getTransferable().getStatus() == Transferable.STATUS_FAILED) {

src/main/java/eu/siacs/conversations/utils/CryptoHelper.java

@@ -243,4 +243,12 @@ public final class CryptoHelper {
 			return url;
 		}
 	}
+
+	public static boolean isPgpEncryptedUrl(String url) {
+		if (url == null) {
+			return false;
+		}
+		final String u = url.toLowerCase();
+		return !u.contains(" ") && (u.startsWith("https://") || u.startsWith("http://")) && u.endsWith(".pgp");
+	}
 }