FairEmail/patches/JavaMail.patch

diff -rupN /home/marcel/JavaMail/mail/src/main/java/com/sun/mail/handlers/handler_base.java ./app/src/main/java/com/sun/mail/handlers/handler_base.java
--- /home/marcel/JavaMail/mail/src/main/java/com/sun/mail/handlers/handler_base.java	2020-08-14 11:44:05.401359065 +0200
+++ ./app/src/main/java/com/sun/mail/handlers/handler_base.java	2020-08-26 15:38:37.903384284 +0200
@@ -17,7 +17,6 @@
 package com.sun.mail.handlers;
 
 import java.io.IOException;
-import java.awt.datatransfer.DataFlavor;
 import javax.activation.*;
 
 /**
@@ -52,14 +51,8 @@ public abstract class handler_base imple
      *
      * @return The DataFlavors
      */
-    @Override
-    public DataFlavor[] getTransferDataFlavors() {
-	ActivationDataFlavor[] adf = getDataFlavors();
-	if (adf.length == 1)	// the common case
-	    return new DataFlavor[] { adf[0] };
-	DataFlavor[] df = new DataFlavor[adf.length];
-	System.arraycopy(adf, 0, df, 0, adf.length);
-	return df;
+    public ActivationDataFlavor[] getTransferDataFlavors() {
+	return getDataFlavors().clone();
     }
 
     /**
@@ -70,8 +63,7 @@ public abstract class handler_base imple
      * @return	the object
      * @exception	IOException	for errors reading the data
      */
-    @Override
-    public Object getTransferData(DataFlavor df, DataSource ds) 
+    public Object getTransferData(ActivationDataFlavor df, DataSource ds) 
 			throws IOException {
 	ActivationDataFlavor[] adf = getDataFlavors();
 	for (int i = 0; i < adf.length; i++) {
diff -rupN /home/marcel/JavaMail/mail/src/main/java/com/sun/mail/iap/Protocol.java ./app/src/main/java/com/sun/mail/iap/Protocol.java
--- /home/marcel/JavaMail/mail/src/main/java/com/sun/mail/iap/Protocol.java	2020-04-03 09:00:49.201313282 +0200
+++ ./app/src/main/java/com/sun/mail/iap/Protocol.java	2020-08-28 08:09:12.005962733 +0200
@@ -347,6 +347,15 @@ public class Protocol {
      * @return		array of Response objects returned by the server
      */
     public synchronized Response[] command(String command, Argument args) {
+	if (socket == null)
+		return new Response[]{Response.byeResponse(new SocketException("disconnected"))};
+	if ("LOGOUT".equals(command))
+		try {
+			socket.setSoTimeout(10 * 1000);
+		} catch (SocketException ex) {
+			eu.faircode.email.Log.e(ex);
+		}
+
 	commandStart(command);
 	List<Response> v = new ArrayList<>();
 	boolean done = false;
diff -rupN /home/marcel/JavaMail/mail/src/main/java/com/sun/mail/imap/IMAPFolder.java ./app/src/main/java/com/sun/mail/imap/IMAPFolder.java
--- /home/marcel/JavaMail/mail/src/main/java/com/sun/mail/imap/IMAPFolder.java	2020-08-14 11:44:05.403359065 +0200
+++ ./app/src/main/java/com/sun/mail/imap/IMAPFolder.java	2020-08-27 09:24:28.051446453 +0200
@@ -1659,6 +1659,28 @@ public class IMAPFolder extends Folder i
 	}
     }
 
+	public synchronized int getCachedCount() {
+		synchronized (messageCacheLock) {
+			if (messageCache == null)
+				return -1;
+
+			try {
+				int count = 0;
+				int size = messageCache.size();
+				for (int i = 1; i <= size; i++) {
+					Message message = messageCache.getMessage(i);
+					if (message != null && !message.isExpunged())
+						count++;
+				}
+
+				return count;
+			} catch (Throwable ex) {
+				eu.faircode.email.Log.e(ex);
+				return -1;
+			}
+		}
+	}
+
     /**
      * Get the new message count.
      */
@@ -2608,6 +2630,20 @@ public class IMAPFolder extends Folder i
 	    throw new FolderClosedException(this, cex.getMessage());
 	} catch (ProtocolException pex) {
 	    throw new MessagingException(pex.getMessage(), pex);
+	} catch (ArrayIndexOutOfBoundsException ex) {
+		eu.faircode.email.Log.w(ex);
+		/*
+			java.lang.ArrayIndexOutOfBoundsException: message number (0) out of bounds (110)
+					at com.sun.mail.imap.MessageCache.getMessage(SourceFile:116)
+					at com.sun.mail.imap.MessageCache.getMessageBySeqnum(SourceFile:148)
+					at com.sun.mail.imap.IMAPFolder.getMessageBySeqNumber(SourceFile:3999)
+					at com.sun.mail.imap.IMAPFolder.processFetchResponse(SourceFile:3604)
+					at com.sun.mail.imap.IMAPFolder.handleResponse(SourceFile:3586)
+					at com.sun.mail.iap.Protocol.notifyResponseHandlers(SourceFile:245)
+					at com.sun.mail.imap.protocol.IMAPProtocol.fetchSequenceNumber(SourceFile:2057)
+					at com.sun.mail.imap.IMAPFolder.getMessageByUID(SourceFile:2598)
+		 */
+		return null;
 	}
 
 	return m;
@@ -3963,7 +3999,8 @@ public class IMAPFolder extends Folder i
 		protocol.noop(); 
 	}
 
-        if (keepStoreAlive && ((IMAPStore)store).hasSeparateStoreConnection()) {
+        if (keepStoreAlive && ((IMAPStore)store).hasSeparateStoreConnection() &&
+				!((IMAPStore)store).isStoreConnectionInUse()) {
             IMAPProtocol p = null;
 	    try {
 		p = ((IMAPStore)store).getFolderStoreProtocol();
diff -rupN /home/marcel/JavaMail/mail/src/main/java/com/sun/mail/imap/IMAPMessage.java ./app/src/main/java/com/sun/mail/imap/IMAPMessage.java
--- /home/marcel/JavaMail/mail/src/main/java/com/sun/mail/imap/IMAPMessage.java	2020-08-14 11:44:05.403359065 +0200
+++ ./app/src/main/java/com/sun/mail/imap/IMAPMessage.java	2020-08-26 15:38:37.906384284 +0200
@@ -1697,4 +1697,28 @@ public class IMAPMessage extends MimeMes
     Session _getSession() {
 	return session;
     }
+
+    @Override
+    public boolean isExpunged() {
+        if (super.isExpunged())
+            return true;
+
+        // Workaround expunged messages without deleted flag
+        if (envelope != null &&
+                envelope.date == null &&
+                envelope.subject == null &&
+                envelope.from == null &&
+                envelope.sender == null &&
+                envelope.replyTo == null &&
+                envelope.to == null &&
+                envelope.cc == null &&
+                envelope.inReplyTo == null &&
+                envelope.messageId == null &&
+                headersLoaded && loadedHeaders.size() == 0) {
+			eu.faircode.email.Log.w("Expunged workaround host=" + ((IMAPStore) folder.getStore()).host);
+			return true;
+		}
+
+        return false;
+    }
 }
diff -rupN /home/marcel/JavaMail/mail/src/main/java/com/sun/mail/imap/IMAPStore.java ./app/src/main/java/com/sun/mail/imap/IMAPStore.java
--- /home/marcel/JavaMail/mail/src/main/java/com/sun/mail/imap/IMAPStore.java	2020-08-14 11:44:05.404359065 +0200
+++ ./app/src/main/java/com/sun/mail/imap/IMAPStore.java	2020-08-26 15:38:37.907384284 +0200
@@ -887,18 +887,26 @@ public class IMAPStore extends Store
 		continue;
 	    }
 
-	    if (m.equals("PLAIN"))
-		p.authplain(authzid, user, password);
-	    else if (m.equals("LOGIN"))
-		p.authlogin(user, password);
-	    else if (m.equals("NTLM"))
-		p.authntlm(authzid, user, password);
-	    else if (m.equals("XOAUTH2"))
-		p.authoauth2(user, password);
-	    else {
-		logger.log(Level.FINE, "no authenticator for mechanism {0}", m);
-		continue;
-	    }
+	    try {
+			if (m.equals("PLAIN"))
+				p.authplain(authzid, user, password);
+			else if (m.equals("LOGIN"))
+				p.authlogin(user, password);
+			else if (m.equals("NTLM"))
+				p.authntlm(authzid, user, password);
+			else if (m.equals("XOAUTH2"))
+				p.authoauth2(user, password);
+			else {
+				logger.log(Level.FINE, "no authenticator for mechanism {0}", m);
+				continue;
+			}
+		} catch (ProtocolException ex) {
+			if (m.equals("PLAIN") || m.equals("LOGIN")) {
+				eu.faircode.email.Log.i("Falling back to classic LOGIN");
+				p.authclassic(user, password);
+			} else
+				throw ex;
+		}
 	    return;
 	}
 
@@ -1014,6 +1022,8 @@ public class IMAPStore extends Store
                             p.disconnect();
                         } catch (Exception ex2) { }
                     p = null;
+					eu.faircode.email.Log.e(new MessagingException("IMAP connection failure", ex1));
+					throw new MessagingException("connection failure", ex1);
                 }
                  
                 if (p == null)
@@ -1175,7 +1185,11 @@ public class IMAPStore extends Store
 		    // someone else is using the connection, give up
 		    // and wait until they're done
 		    p = null;
-		    pool.wait();
+		    pool.wait(pool.clientTimeoutInterval);
+		    if (pool.storeConnectionInUse) {
+				eu.faircode.email.Log.e("getStoreProtocol timeout");
+				throw new InterruptedException("getStoreProtocol timeout");
+			}
 		} catch (InterruptedException ex) {
 		    // restore the interrupted state, which callers might
 		    // depend on
@@ -1250,7 +1264,11 @@ public class IMAPStore extends Store
         return pool.separateStoreConnection;
     }
 
-    /** 
+    boolean isStoreConnectionInUse() {
+		return pool.storeConnectionInUse;
+	}
+
+    /**
      * Return the connection pool logger.
      */ 
     MailLogger getConnectionPoolLogger() {
@@ -1529,6 +1547,30 @@ public class IMAPStore extends Store
         }
     }
 
+    public synchronized String getCapability(String capability)
+            throws MessagingException {
+        IMAPProtocol p = null;
+        try {
+            p = getStoreProtocol();
+            Map<String, String> caps = p.getCapabilities();
+            if (caps != null)
+                for (String cap : caps.values()) {
+                    int eq = (cap == null ? -1 : cap.indexOf('='));
+                    if (eq > 0) {
+                        String key = cap.substring(0, eq);
+                        String value = cap.substring(eq + 1);
+                        if (capability.equals(key))
+                            return value;
+                    }
+                }
+            return null;
+        } catch (ProtocolException pex) {
+            throw new MessagingException(pex.getMessage(), pex);
+        } finally {
+            releaseStoreProtocol(p);
+        }
+    }
+
     /**
      * Set the user name to be used with the PROXYAUTH command.
      * The PROXYAUTH user name can also be set using the
@@ -2035,7 +2077,11 @@ public class IMAPStore extends Store
 		    // without aborting it ourselves
 		    try {
 			// give up lock and wait to be not idle
-			pool.wait();
+			pool.wait(pool.clientTimeoutInterval);
+			if (pool.idleState != ConnectionPool.RUNNING) {
+				eu.faircode.email.Log.e("idle timeout");
+				throw new InterruptedException("idle timeout");
+			}
 		    } catch (InterruptedException ex) {
 			// restore the interrupted state, which callers might
 			// depend on
@@ -2128,7 +2174,11 @@ public class IMAPStore extends Store
 	    }
 	    try {
 		// give up lock and wait to be not idle
-		pool.wait();
+		pool.wait(pool.clientTimeoutInterval);
+		if (pool.idleState != ConnectionPool.RUNNING) {
+			eu.faircode.email.Log.e("waitIfIdle timeout");
+			throw new InterruptedException("waitIfIdle timeout");
+		}
 	    } catch (InterruptedException ex) {
 		// If someone is trying to interrupt us we can't keep going
 		// around the loop waiting for IDLE to complete, but we can't
diff -rupN /home/marcel/JavaMail/mail/src/main/java/com/sun/mail/imap/protocol/IMAPProtocol.java ./app/src/main/java/com/sun/mail/imap/protocol/IMAPProtocol.java
--- /home/marcel/JavaMail/mail/src/main/java/com/sun/mail/imap/protocol/IMAPProtocol.java	2020-08-14 11:44:05.406359065 +0200
+++ ./app/src/main/java/com/sun/mail/imap/protocol/IMAPProtocol.java	2020-08-28 17:41:28.427621762 +0200
@@ -462,6 +462,9 @@ public class IMAPProtocol extends Protoc
      */
     public void logout() throws ProtocolException {
 	try {
+		if (!authenticated)
+			return;
+
 	    Response[] r = command("LOGOUT", null);
 
 	    authenticated = false;
@@ -627,6 +630,59 @@ public class IMAPProtocol extends Protoc
 	authenticated = true;
     }
 
+	public synchronized void authclassic(String u, String p)
+			throws ProtocolException {
+		List<Response> v = new ArrayList<>();
+		String tag = null;
+		Response r = null;
+		boolean done = false;
+
+		try {
+
+			if (noauthdebug && isTracing()) {
+				logger.fine("LOGIN command trace suppressed");
+				suspendTracing();
+			}
+
+			try {
+				Argument arg = new Argument();
+				arg.writeNString(u);
+				arg.writeNString(p);
+				tag = writeCommand("LOGIN", arg);
+			} catch (Exception ex) {
+				r = Response.byeResponse(ex);
+				done = true;
+			}
+
+			while (!done) {
+				try {
+					r = readResponse();
+					if (r.isTagged() && r.getTag().equals(tag))
+						done = true;
+					else if (r.isBYE()) // outta here
+						done = true;
+				} catch (Exception ioex) {
+					r = Response.byeResponse(ioex);
+					done = true;
+				}
+				v.add(r);
+			}
+
+		} finally {
+			resumeTracing();
+		}
+
+		Response[] responses = v.toArray(new Response[v.size()]);
+
+		handleCapabilityResponse(responses);
+		notifyResponseHandlers(responses);
+
+		if (noauthdebug && isTracing())
+			logger.fine("LOGIN command result: " + r);
+		handleLoginResult(r);
+		setCapabilities(r);
+		authenticated = true;
+	}
 
     /**
      * The AUTHENTICATE command with AUTH=PLAIN authentication scheme.
--- /home/marcel/JavaMail/mail/src/main/java/javax/mail/EventQueue.java	2020-08-14 11:44:05.413359065 +0200
+++ app/src/main/java/javax/mail/EventQueue.java	2020-09-21 11:04:19.648547947 +0200
@@ -154,6 +154,19 @@ class EventQueue implements Runnable {
 	    }
 	} catch (InterruptedException e) {
 	    // just die
+	} catch (Error ex) {
+		/*
+			java.lang.Error: java.lang.InterruptedException
+			  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1173)
+			  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
+			  at java.lang.Thread.run(Thread.java:919)
+			Caused by: java.lang.InterruptedException
+			  at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireInterruptibly(AbstractQueuedSynchronizer.java:1248)
+			  at java.util.concurrent.locks.ReentrantLock.lockInterruptibly(ReentrantLock.java:344)
+			  at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:439)
+			  at javax.mail.EventQueue.run(SourceFile:140)
+			  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
+		 */
 	}
     }
 }
diff --git a/app/src/main/java/com/sun/mail/imap/IMAPStore.java b/app/src/main/java/com/sun/mail/imap/IMAPStore.java
index 087e5a6f5..5fa720f3d 100644
--- a/app/src/main/java/com/sun/mail/imap/IMAPStore.java
+++ b/app/src/main/java/com/sun/mail/imap/IMAPStore.java
@@ -1571,6 +1571,19 @@ public class IMAPStore extends Store
         }
     }
 
+	public synchronized Map<String, String> getCapabilities()
+			throws MessagingException {
+		IMAPProtocol p = null;
+		try {
+			p = getStoreProtocol();
+			return p.getCapabilities();
+		} catch (ProtocolException pex) {
+			throw new MessagingException(pex.getMessage(), pex);
+		} finally {
+			releaseStoreProtocol(p);
+		}
+	}
+
     /**
      * Set the user name to be used with the PROXYAUTH command.
      * The PROXYAUTH user name can also be set using the