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Posted to notifications@james.apache.org by bt...@apache.org on 2022/05/12 01:41:16 UTC

[james-project] 02/05: JAMES-3737 ImapRequestFrameDecoder: better manage framing

This is an automated email from the ASF dual-hosted git repository.

btellier pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/james-project.git

commit 05c1e70025a7198fbe70b75a062500657bc80295
Author: Benoit Tellier <bt...@linagora.com>
AuthorDate: Wed May 11 12:52:52 2022 +0700

    JAMES-3737 ImapRequestFrameDecoder: better manage framing
---
 .../imapserver/netty/ImapRequestFrameDecoder.java    |  6 ++----
 .../james/imapserver/netty/IMAPServerTest.java       | 20 ++++++++++++++++++++
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/server/protocols/protocols-imap4/src/main/java/org/apache/james/imapserver/netty/ImapRequestFrameDecoder.java b/server/protocols/protocols-imap4/src/main/java/org/apache/james/imapserver/netty/ImapRequestFrameDecoder.java
index 9cd437eaf9..43ad58a086 100644
--- a/server/protocols/protocols-imap4/src/main/java/org/apache/james/imapserver/netty/ImapRequestFrameDecoder.java
+++ b/server/protocols/protocols-imap4/src/main/java/org/apache/james/imapserver/netty/ImapRequestFrameDecoder.java
@@ -267,15 +267,13 @@ public class ImapRequestFrameDecoder extends ByteToMessageDecoder implements Net
     }
 
     public void disableFraming(ChannelHandlerContext ctx) {
-        if (framingEnabled.get()) {
+        if (framingEnabled.getAndSet(false)) {
             ctx.channel().pipeline().remove(FRAMER);
-            framingEnabled.set(false);
         }
     }
 
     public void enableFraming(ChannelHandlerContext ctx) {
-        if (!framingEnabled.get()) {
-            framingEnabled.set(true);
+        if (!framingEnabled.getAndSet(true)) {
             ctx.channel().pipeline().addBefore(REQUEST_DECODER, FRAMER,
                 new SwitchableLineBasedFrameDecoder(ctx.channel().pipeline(), maxFrameLength, false));
         }
diff --git a/server/protocols/protocols-imap4/src/test/java/org/apache/james/imapserver/netty/IMAPServerTest.java b/server/protocols/protocols-imap4/src/test/java/org/apache/james/imapserver/netty/IMAPServerTest.java
index aea7bda099..ae12a8117c 100644
--- a/server/protocols/protocols-imap4/src/test/java/org/apache/james/imapserver/netty/IMAPServerTest.java
+++ b/server/protocols/protocols-imap4/src/test/java/org/apache/james/imapserver/netty/IMAPServerTest.java
@@ -380,6 +380,26 @@ class IMAPServerTest {
             assertThat(new String(readBytes(clientConnection), StandardCharsets.US_ASCII)).contains("APPEND completed.");
 
         }
+
+        @Test
+        void partialCommandAfterNonSynchronizedLiteralShouldNotFail() throws Exception {
+            clientConnection.write(ByteBuffer.wrap(String.format("a0 LOGIN %s %s\r\n", USER.asString(), USER_PASS).getBytes(StandardCharsets.UTF_8)));
+            readBytes(clientConnection);
+
+            String msg = "Date: Mon, 7 Feb 1994 21:52:25 -0800 (PST)\r\n" +
+                "From: Fred Foobar <fo...@Blurdybloop.COM>\r\n" +
+                "Subject: afternoon meeting 2\r\n" +
+                "To: mooch@owatagu.siam.edu\r\n" +
+                "Message-Id: <B2...@Blurdybloop.COM>\r\n" +
+                "MIME-Version: 1.0\r\n" +
+                "Content-Type: TEXT/PLAIN; CHARSET=US-ASCII\r\n" +
+                "C:\r\n" +
+                "Hello Joe, could we change that to 4:00pm tomorrow?\r\n";
+            clientConnection.write(ByteBuffer.wrap(("A004 APPEND INBOX {" + msg.length() + "+}\r\n" +
+                msg + "\r\nA005 NOOP").getBytes(StandardCharsets.UTF_8)));
+
+            assertThat(new String(readBytes(clientConnection), StandardCharsets.US_ASCII)).contains("APPEND completed.");
+        }
     }
 
     @Nested


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