Removed dependency on (external) commons-codec and commons-logging

.classpath

@@ -8,7 +8,5 @@
 	<classpathentry kind="lib" path="libs/commons-io-2.0.1.jar"/>
 	<classpathentry kind="lib" path="libs/jzlib-1.0.7.jar"/>
 	<classpathentry kind="lib" path="libs/jutf7-1.0.1-SNAPSHOT.jar"/>
-	<classpathentry kind="lib" path="compile-only-libs/commons-codec-1.3.jar"/>
-	<classpathentry kind="lib" path="compile-only-libs/commons-logging-1.1.1.jar"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>

src/com/fsck/k9/mail/filter/Base64.java

@@ -17,11 +17,6 @@
 
 package com.fsck.k9.mail.filter;
 
-import org.apache.commons.codec.BinaryDecoder;
-import org.apache.commons.codec.BinaryEncoder;
-import org.apache.commons.codec.DecoderException;
-import org.apache.commons.codec.EncoderException;
-
 import java.io.UnsupportedEncodingException;
 import java.math.BigInteger;
 
@@ -38,7 +33,7 @@ import java.math.BigInteger;
  * @since 1.0-dev
  * @version $Id$
  */
-public class Base64 implements BinaryEncoder, BinaryDecoder {
+public class Base64 {
     /**
      * Chunk size per RFC 2045 section 6.8.
      *
@@ -759,4 +754,16 @@ public class Base64 implements BinaryEncoder, BinaryDecoder {
 
         return resizedBytes;
     }
+
+    static class DecoderException extends Exception {
+        DecoderException(String error) {
+            super(error);
+        }
+    }
+
+    static class EncoderException extends Exception {
+        EncoderException(String error) {
+            super(error);
+        }
+    }
 }

src/com/fsck/k9/mail/filter/Hex.java

@@ -0,0 +1,57 @@
+/*
+ * Copyright 2001-2004 The Apache Software Foundation.
+ *
+ * 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.fsck.k9.mail.filter;
+
+/**
+ * This code was copied from the Apache Commons project.
+ * The unnecessary parts have been left out.
+ */
+public class Hex
+{
+    /**
+     * Used building output as Hex
+     */
+    private static final char[] DIGITS = {
+        '0', '1', '2', '3', '4', '5', '6', '7',
+           '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
+    };
+
+    /**
+     * Converts an array of bytes into an array of characters representing the hexidecimal values of each byte in order.
+     * The returned array will be double the length of the passed array, as it takes two characters to represent any
+     * given byte.
+     *
+     * @param data
+     *                  a byte[] to convert to Hex characters
+     * @return A char[] containing hexidecimal characters
+     */
+    public static char[] encodeHex(byte[] data) {
+
+        int l = data.length;
+
+           char[] out = new char[l << 1];
+
+           // two characters form the hex value.
+           for (int i = 0, j = 0; i < l; i++) {
+               out[j++] = DIGITS[(0xF0 & data[i]) >>> 4 ];
+               out[j++] = DIGITS[ 0x0F & data[i] ];
+           }
+
+           return out;
+    }
+
+}

src/com/fsck/k9/mail/store/ImapStore.java

@@ -47,9 +47,6 @@ import javax.net.ssl.SSLContext;
 import javax.net.ssl.SSLException;
 import javax.net.ssl.TrustManager;
 
-import org.apache.commons.codec.binary.Base64;
-import org.apache.commons.codec.binary.Hex;
-
 import android.content.Context;
 import android.net.ConnectivityManager;
 import android.net.NetworkInfo;
@@ -76,9 +73,11 @@ import com.fsck.k9.mail.Part;
 import com.fsck.k9.mail.PushReceiver;
 import com.fsck.k9.mail.Pusher;
 import com.fsck.k9.mail.Store;
+import com.fsck.k9.mail.filter.Base64;
 import com.fsck.k9.mail.filter.CountingOutputStream;
 import com.fsck.k9.mail.filter.EOLConvertingOutputStream;
 import com.fsck.k9.mail.filter.FixedLengthInputStream;
+import com.fsck.k9.mail.filter.Hex;
 import com.fsck.k9.mail.filter.PeekableInputStream;
 import com.fsck.k9.mail.internet.MimeBodyPart;
 import com.fsck.k9.mail.internet.MimeHeader;

src/com/fsck/k9/mail/transport/SmtpTransport.java

@@ -7,6 +7,7 @@ import com.fsck.k9.mail.*;
 import com.fsck.k9.mail.Message.RecipientType;
 import com.fsck.k9.mail.filter.Base64;
 import com.fsck.k9.mail.filter.EOLConvertingOutputStream;
+import com.fsck.k9.mail.filter.Hex;
 import com.fsck.k9.mail.filter.LineWrapOutputStream;
 import com.fsck.k9.mail.filter.PeekableInputStream;
 import com.fsck.k9.mail.filter.SmtpDataStuffing;
@@ -26,7 +27,6 @@ import java.security.GeneralSecurityException;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 import java.security.SecureRandom;
-import org.apache.commons.codec.binary.Hex;
 
 import java.util.*;