mark oob messages and always display download button

src/main/java/eu/siacs/conversations/entities/Message.java

@@ -52,6 +52,7 @@ public class Message extends AbstractEntity {
 	public static final String STATUS = "status";
 	public static final String TYPE = "type";
 	public static final String CARBON = "carbon";
+	public static final String OOB = "oob";
 	public static final String EDITED = "edited";
 	public static final String REMOTE_MSG_ID = "remoteMsgId";
 	public static final String SERVER_MSG_ID = "serverMsgId";
@@ -72,6 +73,7 @@ public class Message extends AbstractEntity {
 	protected int status;
 	protected int type;
 	protected boolean carbon = false;
+	protected boolean oob = false;
 	protected String edited = null;
 	protected String relativeFilePath;
 	protected boolean read = true;
@@ -107,7 +109,8 @@ public class Message extends AbstractEntity {
 				null,
 				null,
 				true,
-				null);
+				null,
+				false);
 		this.conversation = conversation;
 	}
 
@@ -116,7 +119,7 @@ public class Message extends AbstractEntity {
 					final int encryption, final int status, final int type, final boolean carbon,
 					final String remoteMsgId, final String relativeFilePath,
 					final String serverMsgId, final String fingerprint, final boolean read,
-					final String edited) {
+					final String edited, final boolean oob) {
 		this.uuid = uuid;
 		this.conversationUuid = conversationUUid;
 		this.counterpart = counterpart;
@@ -133,6 +136,7 @@ public class Message extends AbstractEntity {
 		this.axolotlFingerprint = fingerprint;
 		this.read = read;
 		this.edited = edited;
+		this.oob = oob;
 	}
 
 	public static Message fromCursor(Cursor cursor) {
@@ -173,7 +177,8 @@ public class Message extends AbstractEntity {
 				cursor.getString(cursor.getColumnIndex(SERVER_MSG_ID)),
 				cursor.getString(cursor.getColumnIndex(FINGERPRINT)),
 				cursor.getInt(cursor.getColumnIndex(READ)) > 0,
-				cursor.getString(cursor.getColumnIndex(EDITED)));
+				cursor.getString(cursor.getColumnIndex(EDITED)),
+				cursor.getInt(cursor.getColumnIndex(OOB)) > 0);
 	}
 
 	public static Message createStatusMessage(Conversation conversation, String body) {
@@ -219,6 +224,7 @@ public class Message extends AbstractEntity {
 		values.put(FINGERPRINT, axolotlFingerprint);
 		values.put(READ,read ? 1 : 0);
 		values.put(EDITED, edited);
+		values.put(OOB, oob ? 1 : 0);
 		return values;
 	}
 
@@ -554,6 +560,10 @@ public class Message extends AbstractEntity {
 		return edited;
 	}
 
+	public void setOob(boolean isOob) {
+		this.oob = isOob;
+	}
+
 	public enum Decision {
 		MUST,
 		SHOULD,
@@ -610,6 +620,8 @@ public class Message extends AbstractEntity {
 			URL url = new URL(body);
 			if (!url.getProtocol().equalsIgnoreCase("http") && !url.getProtocol().equalsIgnoreCase("https")) {
 				return Decision.NEVER;
+			} else if (oob) {
+				return Decision.MUST;
 			}
 			String extension = extractRelevantExtension(url);
 			if (extension == null) {

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

@@ -6,6 +6,7 @@ import android.util.Pair;
 import net.java.otr4j.session.Session;
 import net.java.otr4j.session.SessionStatus;
 
+import java.net.URL;
 import java.util.ArrayList;
 import java.util.Set;
 import java.util.UUID;
@@ -291,6 +292,8 @@ public class MessageParser extends AbstractParser implements
 		final Element mucUserElement = packet.findChild("x", "http://jabber.org/protocol/muc#user");
 		final String pgpEncrypted = packet.findChildContent("x", "jabber:x:encrypted");
 		final Element replaceElement = packet.findChild("replace", "urn:xmpp:message-correct:0");
+		final Element oob = packet.findChild("x", "jabber:x:oob");
+		final boolean isOob = oob!= null && body != null && body.equals(oob.findChildContent("url"));
 		final String replacementId = replaceElement == null ? null : replaceElement.getAttribute("id");
 		final Element axolotlEncrypted = packet.findChild(XmppAxolotlMessage.CONTAINERTAG, AxolotlService.PEP_PREFIX);
 		int status;
@@ -384,6 +387,7 @@ public class MessageParser extends AbstractParser implements
 			message.setServerMsgId(serverMsgId);
 			message.setCarbon(isCarbon);
 			message.setTime(timestamp);
+			message.setOob(isOob);
 			message.markable = packet.hasChild("markable", "urn:xmpp:chat-markers:0");
 			if (conversation.getMode() == Conversation.MODE_MULTI) {
 				Jid trueCounterpart = conversation.getMucOptions().getTrueCounterpart(counterpart.getResourcepart());

src/main/java/eu/siacs/conversations/persistance/DatabaseBackend.java

@@ -51,7 +51,7 @@ public class DatabaseBackend extends SQLiteOpenHelper {
 	private static DatabaseBackend instance = null;
 
 	private static final String DATABASE_NAME = "history";
-	private static final int DATABASE_VERSION = 24;
+	private static final int DATABASE_VERSION = 25;
 
 	private static String CREATE_CONTATCS_STATEMENT = "create table "
 			+ Contact.TABLENAME + "(" + Contact.ACCOUNT + " TEXT, "
@@ -163,6 +163,7 @@ public class DatabaseBackend extends SQLiteOpenHelper {
 				+ Message.CARBON + " INTEGER, "
 				+ Message.EDITED + " TEXT, "
 				+ Message.READ + " NUMBER DEFAULT 1, "
+				+ Message.OOB + " INTEGER, "
 				+ Message.REMOTE_MSG_ID + " TEXT, FOREIGN KEY("
 				+ Message.CONVERSATION + ") REFERENCES "
 				+ Conversation.TABLENAME + "(" + Conversation.UUID
@@ -375,6 +376,10 @@ public class DatabaseBackend extends SQLiteOpenHelper {
 		if (oldVersion < 24 && newVersion >= 24) {
 			db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN " + Message.EDITED + " TEXT");
 		}
+
+		if (oldVersion < 25 && newVersion >= 25) {
+			db.execSQL("ALTER TABLE " + Message.TABLENAME + " ADD COLUMN " + Message.OOB + " INTEGER");
+		}
 	}
 
 	public static synchronized DatabaseBackend getInstance(Context context) {

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

@@ -191,6 +191,9 @@ public class UIHelper {
 				} else {
 					return new Pair<>(context.getString(R.string.location), true);
 				}
+			} else if (message.treatAsDownloadable() == Message.Decision.MUST) {
+				return new Pair<>(context.getString(R.string.x_file_offered_for_download,
+						getFileDescriptionString(context,message)),true);
 			} else{
 				return new Pair<>(message.getBody().trim(), false);
 			}