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Posted to server-dev@james.apache.org by no...@apache.org on 2011/01/16 19:43:40 UTC

svn commit: r1059631 - in /james/imap/trunk: api/src/main/java/org/apache/james/imap/api/ api/src/main/java/org/apache/james/imap/api/display/ api/src/main/java/org/apache/james/imap/api/process/ message/src/main/java/org/apache/james/imap/decode/parse...

Author: norman
Date: Sun Jan 16 18:43:40 2011
New Revision: 1059631

URL: http://svn.apache.org/viewvc?rev=1059631&view=rev
Log:
Add support for COMPRESS extension. See IMAP-247

Added:
    james/imap/trunk/message/src/main/java/org/apache/james/imap/decode/parser/CompressCommandParser.java
    james/imap/trunk/message/src/main/java/org/apache/james/imap/message/request/CompressRequest.java
    james/imap/trunk/processor/src/main/java/org/apache/james/imap/processor/CompressProcessor.java
Modified:
    james/imap/trunk/api/src/main/java/org/apache/james/imap/api/ImapConstants.java
    james/imap/trunk/api/src/main/java/org/apache/james/imap/api/display/HumanReadableText.java
    james/imap/trunk/api/src/main/java/org/apache/james/imap/api/process/ImapSession.java
    james/imap/trunk/message/src/main/java/org/apache/james/imap/decode/parser/ImapParserFactory.java
    james/imap/trunk/message/src/main/java/org/apache/james/imap/main/ImapSessionImpl.java
    james/imap/trunk/message/src/test/java/org/apache/james/imap/encode/FakeImapSession.java
    james/imap/trunk/processor/src/main/java/org/apache/james/imap/processor/DefaultProcessorChain.java

Modified: james/imap/trunk/api/src/main/java/org/apache/james/imap/api/ImapConstants.java
URL: http://svn.apache.org/viewvc/james/imap/trunk/api/src/main/java/org/apache/james/imap/api/ImapConstants.java?rev=1059631&r1=1059630&r2=1059631&view=diff
==============================================================================
--- james/imap/trunk/api/src/main/java/org/apache/james/imap/api/ImapConstants.java (original)
+++ james/imap/trunk/api/src/main/java/org/apache/james/imap/api/ImapConstants.java Sun Jan 16 18:43:40 2011
@@ -252,4 +252,6 @@ public interface ImapConstants {
     public static final long MAX_NZ_NUMBER = 4294967295L;
     public static final long MIN_NZ_NUMBER = 1L;
 
+    public static final String COMPRESS_COMMAND_NAME = "COMPRESS";
+
 }

Modified: james/imap/trunk/api/src/main/java/org/apache/james/imap/api/display/HumanReadableText.java
URL: http://svn.apache.org/viewvc/james/imap/trunk/api/src/main/java/org/apache/james/imap/api/display/HumanReadableText.java?rev=1059631&r1=1059630&r2=1059631&view=diff
==============================================================================
--- james/imap/trunk/api/src/main/java/org/apache/james/imap/api/display/HumanReadableText.java (original)
+++ james/imap/trunk/api/src/main/java/org/apache/james/imap/api/display/HumanReadableText.java Sun Jan 16 18:43:40 2011
@@ -199,6 +199,14 @@ public class HumanReadableText {
     public static final HumanReadableText IDLING = new HumanReadableText(
             "org.apache.james.imap.IDLING", "Idling");
     
+    public static final HumanReadableText DEFLATE_ACTIVE = new HumanReadableText(
+            "org.apache.james.imap.DEFLATE", "DEFLATE active");
+    
+    public static final HumanReadableText COMPRESS_ALREADY_ACTIVE = new HumanReadableText(
+            "org.apache.james.imap.DEFLATE", "already active");
+    
+
+    
     public static final HumanReadableText UNSELECT = new HumanReadableText(
             "org.apache.james.imap.UNSELECT", "No Mailbox selected.");
     private final String defaultValue;

Modified: james/imap/trunk/api/src/main/java/org/apache/james/imap/api/process/ImapSession.java
URL: http://svn.apache.org/viewvc/james/imap/trunk/api/src/main/java/org/apache/james/imap/api/process/ImapSession.java?rev=1059631&r1=1059630&r2=1059631&view=diff
==============================================================================
--- james/imap/trunk/api/src/main/java/org/apache/james/imap/api/process/ImapSession.java (original)
+++ james/imap/trunk/api/src/main/java/org/apache/james/imap/api/process/ImapSession.java Sun Jan 16 18:43:40 2011
@@ -31,6 +31,7 @@ import org.apache.james.imap.api.ImapSes
  */
 public interface ImapSession {
     
+    
     /**
      * Gets the context sensitive log for this session.
      * Understanding the context of a log message is an important
@@ -122,6 +123,8 @@ public interface ImapSession {
      */
     public boolean supportStartTLS();
     
+    public boolean isCompressionSupported();
     
+    public boolean startCompression();
     
 }

Added: james/imap/trunk/message/src/main/java/org/apache/james/imap/decode/parser/CompressCommandParser.java
URL: http://svn.apache.org/viewvc/james/imap/trunk/message/src/main/java/org/apache/james/imap/decode/parser/CompressCommandParser.java?rev=1059631&view=auto
==============================================================================
--- james/imap/trunk/message/src/main/java/org/apache/james/imap/decode/parser/CompressCommandParser.java (added)
+++ james/imap/trunk/message/src/main/java/org/apache/james/imap/decode/parser/CompressCommandParser.java Sun Jan 16 18:43:40 2011
@@ -0,0 +1,46 @@
+/****************************************************************
+ * 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.imap.decode.parser;
+
+import org.apache.james.imap.api.ImapCommand;
+import org.apache.james.imap.api.ImapConstants;
+import org.apache.james.imap.api.ImapMessage;
+import org.apache.james.imap.api.process.ImapSession;
+import org.apache.james.imap.decode.DecodingException;
+import org.apache.james.imap.decode.ImapRequestLineReader;
+import org.apache.james.imap.decode.base.AbstractImapCommandParser;
+import org.apache.james.imap.message.request.CompressRequest;
+
+public class CompressCommandParser extends AbstractImapCommandParser{
+
+    public CompressCommandParser() {
+        super(ImapCommand.anyStateCommand(ImapConstants.COMPRESS_COMMAND_NAME));
+    }
+    
+    /*
+     * (non-Javadoc)
+     * @see org.apache.james.imap.decode.base.AbstractImapCommandParser#decode(org.apache.james.imap.api.ImapCommand, org.apache.james.imap.decode.ImapRequestLineReader, java.lang.String, org.apache.james.imap.api.process.ImapSession)
+     */
+    protected ImapMessage decode(ImapCommand command, ImapRequestLineReader request, String tag, ImapSession session) throws DecodingException {
+        String algorithm = atom(request);
+        endLine(request);
+        return new CompressRequest(tag, command, algorithm);
+    }
+
+}

Modified: james/imap/trunk/message/src/main/java/org/apache/james/imap/decode/parser/ImapParserFactory.java
URL: http://svn.apache.org/viewvc/james/imap/trunk/message/src/main/java/org/apache/james/imap/decode/parser/ImapParserFactory.java?rev=1059631&r1=1059630&r2=1059631&view=diff
==============================================================================
--- james/imap/trunk/message/src/main/java/org/apache/james/imap/decode/parser/ImapParserFactory.java (original)
+++ james/imap/trunk/message/src/main/java/org/apache/james/imap/decode/parser/ImapParserFactory.java Sun Jan 16 18:43:40 2011
@@ -121,7 +121,12 @@ public class ImapParserFactory implement
         
         // RFC3691 
         _imapCommands.put(ImapConstants.UNSELECT_COMMAND_NAME, UnselectCommandParser.class);
+    
+        // RFC4978
+        _imapCommands.put(ImapConstants.COMPRESS_COMMAND_NAME, CompressCommandParser.class);
+
     }
+    
 
     /**
      * @see org.apache.james.imap.decode.parser.ImapCommandParserFactory#getParser(java.lang.String)

Modified: james/imap/trunk/message/src/main/java/org/apache/james/imap/main/ImapSessionImpl.java
URL: http://svn.apache.org/viewvc/james/imap/trunk/message/src/main/java/org/apache/james/imap/main/ImapSessionImpl.java?rev=1059631&r1=1059630&r2=1059631&view=diff
==============================================================================
--- james/imap/trunk/message/src/main/java/org/apache/james/imap/main/ImapSessionImpl.java (original)
+++ james/imap/trunk/message/src/main/java/org/apache/james/imap/main/ImapSessionImpl.java Sun Jan 16 18:43:40 2011
@@ -164,4 +164,14 @@ public class ImapSessionImpl implements 
     public boolean supportStartTLS() {
         return false;
     }
+
+
+    public boolean IsCompressionSupported() {
+        return false;
+    }
+
+
+    public boolean startCompression() {
+        return false;
+    }
 }

Added: james/imap/trunk/message/src/main/java/org/apache/james/imap/message/request/CompressRequest.java
URL: http://svn.apache.org/viewvc/james/imap/trunk/message/src/main/java/org/apache/james/imap/message/request/CompressRequest.java?rev=1059631&view=auto
==============================================================================
--- james/imap/trunk/message/src/main/java/org/apache/james/imap/message/request/CompressRequest.java (added)
+++ james/imap/trunk/message/src/main/java/org/apache/james/imap/message/request/CompressRequest.java Sun Jan 16 18:43:40 2011
@@ -0,0 +1,35 @@
+/****************************************************************
+ * 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.imap.message.request;
+
+import org.apache.james.imap.api.ImapCommand;
+
+public class CompressRequest extends AbstractImapRequest{
+
+    private String algorithm;
+
+    public CompressRequest(String tag, ImapCommand command, String algorithm) {
+        super(tag, command);
+        this.algorithm = algorithm;
+    }
+
+    public String getAlgorithm() {
+        return algorithm;
+    }
+}

Modified: james/imap/trunk/message/src/test/java/org/apache/james/imap/encode/FakeImapSession.java
URL: http://svn.apache.org/viewvc/james/imap/trunk/message/src/test/java/org/apache/james/imap/encode/FakeImapSession.java?rev=1059631&r1=1059630&r2=1059631&view=diff
==============================================================================
--- james/imap/trunk/message/src/test/java/org/apache/james/imap/encode/FakeImapSession.java (original)
+++ james/imap/trunk/message/src/test/java/org/apache/james/imap/encode/FakeImapSession.java Sun Jan 16 18:43:40 2011
@@ -102,4 +102,12 @@ public class FakeImapSession implements 
         return false;
     }
 
+    public boolean IsCompressionSupported() {
+        return false;
+    }
+
+    public boolean startCompression() {
+        return false;
+    }
+
 }

Added: james/imap/trunk/processor/src/main/java/org/apache/james/imap/processor/CompressProcessor.java
URL: http://svn.apache.org/viewvc/james/imap/trunk/processor/src/main/java/org/apache/james/imap/processor/CompressProcessor.java?rev=1059631&view=auto
==============================================================================
--- james/imap/trunk/processor/src/main/java/org/apache/james/imap/processor/CompressProcessor.java (added)
+++ james/imap/trunk/processor/src/main/java/org/apache/james/imap/processor/CompressProcessor.java Sun Jan 16 18:43:40 2011
@@ -0,0 +1,93 @@
+/****************************************************************
+ * 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.imap.processor;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+import org.apache.james.imap.api.ImapConstants;
+import org.apache.james.imap.api.ImapMessage;
+import org.apache.james.imap.api.display.HumanReadableText;
+import org.apache.james.imap.api.message.response.StatusResponseFactory;
+import org.apache.james.imap.api.process.ImapProcessor;
+import org.apache.james.imap.api.process.ImapSession;
+import org.apache.james.imap.message.request.CompressRequest;
+import org.apache.james.imap.processor.base.AbstractChainedProcessor;
+
+public class CompressProcessor extends AbstractChainedProcessor implements CapabilityImplementingProcessor{
+    private final static String ALGO = "DEFLATE";
+    private final static List<String> CAPA = Arrays.asList(ImapConstants.COMPRESS_COMMAND_NAME + "=" + ALGO);
+    private StatusResponseFactory factory;
+    private final static String COMPRESSED = "COMPRESSED";
+    
+    public CompressProcessor(ImapProcessor next, final StatusResponseFactory factory) {
+        super(next);
+        this.factory = factory;
+    }
+    
+
+    /*
+     * (non-Javadoc)
+     * @see org.apache.james.imap.processor.base.AbstractChainedProcessor#isAcceptable(org.apache.james.imap.api.ImapMessage)
+     */
+    protected boolean isAcceptable(ImapMessage message) {
+        return message instanceof CompressRequest;
+    }
+
+    /*
+     * (non-Javadoc)
+     * @see org.apache.james.imap.processor.base.AbstractChainedProcessor#doProcess(org.apache.james.imap.api.ImapMessage, org.apache.james.imap.api.process.ImapProcessor.Responder, org.apache.james.imap.api.process.ImapSession)
+     */
+    protected void doProcess(ImapMessage acceptableMessage, Responder responder, ImapSession session) {
+        CompressRequest request = (CompressRequest) acceptableMessage;
+        if (session.isCompressionSupported()) {
+            boolean compressed = (Boolean) session.getAttribute(COMPRESSED);
+            if (compressed) {
+                responder.respond(factory.taggedNo(request.getTag(), request.getCommand(), HumanReadableText.COMPRESS_ALREADY_ACTIVE));
+            } else {
+                if (request.getAlgorithm().equalsIgnoreCase(ALGO) == false) {
+                    responder.respond(factory.taggedBad(request.getTag(), request.getCommand(), HumanReadableText.ILLEGAL_ARGUMENTS));
+                } else {
+                    if (session.startCompression()) {
+                        session.setAttribute(COMPRESSED, true);
+                        responder.respond(factory.taggedOk(request.getTag(), request.getCommand(), HumanReadableText.DEFLATE_ACTIVE));
+                    } else {
+                        
+                    }
+                }
+            }
+        } else {
+            responder.respond(factory.taggedBad(request.getTag(), request.getCommand(), HumanReadableText.INVALID_COMMAND));
+        }
+    }
+
+    /*
+     * (non-Javadoc)
+     * @see org.apache.james.imap.processor.CapabilityImplementingProcessor#getImplementedCapabilities(org.apache.james.imap.api.process.ImapSession)
+     */
+    @SuppressWarnings("unchecked")
+    public List<String> getImplementedCapabilities(ImapSession session) {
+        if (session.isCompressionSupported()) {
+            return CAPA;
+        }
+        return Collections.EMPTY_LIST;
+    }
+
+}

Modified: james/imap/trunk/processor/src/main/java/org/apache/james/imap/processor/DefaultProcessorChain.java
URL: http://svn.apache.org/viewvc/james/imap/trunk/processor/src/main/java/org/apache/james/imap/processor/DefaultProcessorChain.java?rev=1059631&r1=1059630&r2=1059631&view=diff
==============================================================================
--- james/imap/trunk/processor/src/main/java/org/apache/james/imap/processor/DefaultProcessorChain.java (original)
+++ james/imap/trunk/processor/src/main/java/org/apache/james/imap/processor/DefaultProcessorChain.java Sun Jan 16 18:43:40 2011
@@ -106,6 +106,7 @@ public class DefaultProcessorChain {
         
         final UnselectProcessor unselectProcessor = new UnselectProcessor(startTLSProcessor, mailboxManager, statusResponseFactory);
         
+        final CompressProcessor compressProcessor = new CompressProcessor(unselectProcessor, statusResponseFactory);
         capabilityProcessor.addProcessor(startTLSProcessor);
         capabilityProcessor.addProcessor(idleProcessor);
         capabilityProcessor.addProcessor(namespaceProcessor);
@@ -115,7 +116,10 @@ public class DefaultProcessorChain {
         // announce the UNSELECT extension. See RFC3691
         capabilityProcessor.addProcessor(unselectProcessor);
 
-        return unselectProcessor;
+        // announce the COMPRESS extension. Sew RFC4978
+        capabilityProcessor.addProcessor(compressProcessor);
+
+        return compressProcessor;
         
     }  
         



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