diff options
Diffstat (limited to 'java/com/google/gerrit/server/mail/AutoReplyMailFilter.java')
-rw-r--r-- | java/com/google/gerrit/server/mail/AutoReplyMailFilter.java | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/mail/AutoReplyMailFilter.java b/java/com/google/gerrit/server/mail/AutoReplyMailFilter.java new file mode 100644 index 0000000000..e18fd42171 --- /dev/null +++ b/java/com/google/gerrit/server/mail/AutoReplyMailFilter.java @@ -0,0 +1,54 @@ +// Copyright (C) 2018 The Android Open Source Project +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package com.google.gerrit.server.mail; + +import com.google.common.flogger.FluentLogger; +import com.google.gerrit.mail.MailHeader; +import com.google.gerrit.mail.MailMessage; +import com.google.inject.Singleton; + +/** Filters out auto-reply messages according to RFC 3834. */ +@Singleton +public class AutoReplyMailFilter implements MailFilter { + private static final FluentLogger logger = FluentLogger.forEnclosingClass(); + + @Override + public boolean shouldProcessMessage(MailMessage message) { + for (String header : message.additionalHeaders()) { + if (header.startsWith(MailHeader.PRECEDENCE.fieldWithDelimiter())) { + String prec = header.substring(MailHeader.PRECEDENCE.fieldWithDelimiter().length()).trim(); + + if (prec.equals("list") || prec.equals("junk") || prec.equals("bulk")) { + logger.atSevere().log( + "Message %s has a Precedence header. Will ignore and delete message.", message.id()); + return false; + } + + } else if (header.startsWith(MailHeader.AUTO_SUBMITTED.fieldWithDelimiter())) { + String autoSubmitted = + header.substring(MailHeader.AUTO_SUBMITTED.fieldWithDelimiter().length()).trim(); + + if (!autoSubmitted.equals("no")) { + logger.atSevere().log( + "Message %s has an Auto-Submitted header. Will ignore and delete message.", + message.id()); + return false; + } + } + } + + return true; + } +} |