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Posted to server-dev@james.apache.org by rc...@apache.org on 2020/07/10 08:20:15 UTC

[james-project] 02/05: JAMES-3295 Matcher for temporary delivery failure

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

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

commit c312298fc9f21fd777780cf065f0d07aedbb11fe
Author: Rene Cordier <rc...@linagora.com>
AuthorDate: Thu Jul 9 10:31:13 2020 +0700

    JAMES-3295 Matcher for temporary delivery failure
---
 .../matchers/IsRemoteDeliveryTemporaryError.java   |  53 +++++++++++
 .../IsRemoteDeliveryTemporaryErrorTest.java        | 101 +++++++++++++++++++++
 2 files changed, 154 insertions(+)

diff --git a/server/mailet/mailets/src/main/java/org/apache/james/transport/matchers/IsRemoteDeliveryTemporaryError.java b/server/mailet/mailets/src/main/java/org/apache/james/transport/matchers/IsRemoteDeliveryTemporaryError.java
new file mode 100644
index 0000000..17ea992
--- /dev/null
+++ b/server/mailet/mailets/src/main/java/org/apache/james/transport/matchers/IsRemoteDeliveryTemporaryError.java
@@ -0,0 +1,53 @@
+/****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one   *
+ * or more contributor license agreements.  See the NOTICE file *
+ * distributed with this work for additional information        *
+ * regarding copyright ownership.  The ASF licenses this file   *
+ * to you 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 org.apache.james.transport.matchers;
+
+import static org.apache.james.transport.mailets.remote.delivery.Bouncer.IS_DELIVERY_PERMANENT_ERROR;
+
+import java.util.Collection;
+import java.util.function.Predicate;
+
+import org.apache.james.core.MailAddress;
+import org.apache.mailet.AttributeUtils;
+import org.apache.mailet.Mail;
+import org.apache.mailet.base.GenericMatcher;
+
+import com.google.common.collect.ImmutableList;
+
+/**
+ * <p>
+ * Checks if the mail has a temporary remote delivery failure attribute set to false (meaning it's a temporary error)
+ * </p>
+ *
+ * Example:
+ *
+ * <pre><code>
+ * &lt;mailet match=&quot;IsRemoteDeliveryTemporaryError&quot; class=&quot;&lt;any-class&gt;&quot;/&gt;
+ * </code></pre>
+ */
+public class IsRemoteDeliveryTemporaryError extends GenericMatcher {
+    @Override
+    public Collection<MailAddress> match(Mail mail) {
+        return AttributeUtils.getValueAndCastFromMail(mail, IS_DELIVERY_PERMANENT_ERROR, Boolean.class)
+            .filter(Predicate.isEqual(false))
+            .map(any -> mail.getRecipients())
+            .orElse(ImmutableList.of());
+    }
+}
diff --git a/server/mailet/mailets/src/test/java/org/apache/james/transport/matchers/IsRemoteDeliveryTemporaryErrorTest.java b/server/mailet/mailets/src/test/java/org/apache/james/transport/matchers/IsRemoteDeliveryTemporaryErrorTest.java
new file mode 100644
index 0000000..4a078d9
--- /dev/null
+++ b/server/mailet/mailets/src/test/java/org/apache/james/transport/matchers/IsRemoteDeliveryTemporaryErrorTest.java
@@ -0,0 +1,101 @@
+/****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one   *
+ * or more contributor license agreements.  See the NOTICE file *
+ * distributed with this work for additional information        *
+ * regarding copyright ownership.  The ASF licenses this file   *
+ * to you 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 org.apache.james.transport.matchers;
+
+import static org.apache.james.transport.mailets.remote.delivery.Bouncer.IS_DELIVERY_PERMANENT_ERROR;
+import static org.apache.mailet.base.MailAddressFixture.RECIPIENT1;
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.util.Collection;
+
+import javax.mail.MessagingException;
+
+import org.apache.james.core.MailAddress;
+import org.apache.mailet.Attribute;
+import org.apache.mailet.AttributeValue;
+import org.apache.mailet.Mail;
+import org.apache.mailet.base.test.FakeMail;
+import org.apache.mailet.base.test.FakeMatcherConfig;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
+
+public class IsRemoteDeliveryTemporaryErrorTest {
+    private IsRemoteDeliveryTemporaryError testee;
+
+    private Mail createMail() throws MessagingException {
+        return FakeMail.builder()
+            .name("test-message")
+            .recipient(RECIPIENT1)
+            .build();
+    }
+
+    @BeforeEach
+    void setUp() throws Exception {
+        testee = new IsRemoteDeliveryTemporaryError();
+
+        FakeMatcherConfig matcherConfig = FakeMatcherConfig.builder()
+            .matcherName("IsRemoteDeliveryTemporaryError")
+            .build();
+
+        testee.init(matcherConfig);
+    }
+
+    @Test
+    void shouldMatchWhenAttributeIsFalse() throws Exception {
+        Mail mail = createMail();
+        mail.setAttribute(new Attribute(IS_DELIVERY_PERMANENT_ERROR, AttributeValue.of(false)));
+
+        Collection<MailAddress> actual = testee.match(mail);
+
+        assertThat(actual).containsOnly(RECIPIENT1);
+    }
+
+    @Test
+    void shouldNotMatchWhenAttributeIsTrue() throws Exception {
+        Mail mail = createMail();
+        mail.setAttribute(new Attribute(IS_DELIVERY_PERMANENT_ERROR, AttributeValue.of(true)));
+
+        Collection<MailAddress> actual = testee.match(mail);
+
+        assertThat(actual).isEmpty();
+    }
+
+    @Test
+    void shouldNotMatchWhenAttributeIsMissing() throws Exception {
+        Mail mail = createMail();
+
+        Collection<MailAddress> actual = testee.match(mail);
+
+        assertThat(actual).isEmpty();
+    }
+
+    @ParameterizedTest
+    @ValueSource(strings = {"abc", "1"})
+    void shouldNotMatchWhenAttributeIsInvalid(String value) throws Exception {
+        Mail mail = createMail();
+        mail.setAttribute(new Attribute(IS_DELIVERY_PERMANENT_ERROR, AttributeValue.of(value)));
+
+        Collection<MailAddress> actual = testee.match(mail);
+
+        assertThat(actual).isEmpty();
+    }
+}


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