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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /mobile/android/thirdparty/org/mozilla/apache/commons/codec/net/BCodec.java | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'mobile/android/thirdparty/org/mozilla/apache/commons/codec/net/BCodec.java')
-rw-r--r-- | mobile/android/thirdparty/org/mozilla/apache/commons/codec/net/BCodec.java | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/mobile/android/thirdparty/org/mozilla/apache/commons/codec/net/BCodec.java b/mobile/android/thirdparty/org/mozilla/apache/commons/codec/net/BCodec.java new file mode 100644 index 000000000..b694888eb --- /dev/null +++ b/mobile/android/thirdparty/org/mozilla/apache/commons/codec/net/BCodec.java @@ -0,0 +1,209 @@ +// Mozilla has modified this file - see http://hg.mozilla.org/ for details. +/* + * 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.mozilla.apache.commons.codec.net; + +import java.io.UnsupportedEncodingException; + +import org.mozilla.apache.commons.codec.DecoderException; +import org.mozilla.apache.commons.codec.EncoderException; +import org.mozilla.apache.commons.codec.CharEncoding; +import org.mozilla.apache.commons.codec.StringDecoder; +import org.mozilla.apache.commons.codec.StringEncoder; +import org.mozilla.apache.commons.codec.binary.Base64; + +/** + * <p> + * Identical to the Base64 encoding defined by <a href="http://www.ietf.org/rfc/rfc1521.txt">RFC + * 1521</a> and allows a character set to be specified. + * </p> + * + * <p> + * <a href="http://www.ietf.org/rfc/rfc1522.txt">RFC 1522</a> describes techniques to allow the encoding of non-ASCII + * text in various portions of a RFC 822 [2] message header, in a manner which is unlikely to confuse existing message + * handling software. + * </p> + * + * @see <a href="http://www.ietf.org/rfc/rfc1522.txt">MIME (Multipurpose Internet Mail Extensions) Part Two: Message + * Header Extensions for Non-ASCII Text</a> + * + * @author Apache Software Foundation + * @since 1.3 + * @version $Id: BCodec.java 797857 2009-07-25 23:43:33Z ggregory $ + */ +public class BCodec extends RFC1522Codec implements StringEncoder, StringDecoder { + /** + * The default charset used for string decoding and encoding. + */ + private final String charset; + + /** + * Default constructor. + */ + public BCodec() { + this(CharEncoding.UTF_8); + } + + /** + * Constructor which allows for the selection of a default charset + * + * @param charset + * the default string charset to use. + * + * @see <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/nio/charset/Charset.html">Standard charsets</a> + */ + public BCodec(final String charset) { + super(); + this.charset = charset; + } + + protected String getEncoding() { + return "B"; + } + + protected byte[] doEncoding(byte[] bytes) { + if (bytes == null) { + return null; + } + return Base64.encodeBase64(bytes); + } + + protected byte[] doDecoding(byte[] bytes) { + if (bytes == null) { + return null; + } + return Base64.decodeBase64(bytes); + } + + /** + * Encodes a string into its Base64 form using the specified charset. Unsafe characters are escaped. + * + * @param value + * string to convert to Base64 form + * @param charset + * the charset for <code>value</code> + * @return Base64 string + * + * @throws EncoderException + * thrown if a failure condition is encountered during the encoding process. + */ + public String encode(final String value, final String charset) throws EncoderException { + if (value == null) { + return null; + } + try { + return encodeText(value, charset); + } catch (UnsupportedEncodingException e) { + throw new EncoderException(e.getMessage(), e); + } + } + + /** + * Encodes a string into its Base64 form using the default charset. Unsafe characters are escaped. + * + * @param value + * string to convert to Base64 form + * @return Base64 string + * + * @throws EncoderException + * thrown if a failure condition is encountered during the encoding process. + */ + public String encode(String value) throws EncoderException { + if (value == null) { + return null; + } + return encode(value, getDefaultCharset()); + } + + /** + * Decodes a Base64 string into its original form. Escaped characters are converted back to their original + * representation. + * + * @param value + * Base64 string to convert into its original form + * @return original string + * @throws DecoderException + * A decoder exception is thrown if a failure condition is encountered during the decode process. + */ + public String decode(String value) throws DecoderException { + if (value == null) { + return null; + } + try { + return decodeText(value); + } catch (UnsupportedEncodingException e) { + throw new DecoderException(e.getMessage(), e); + } + } + + /** + * Encodes an object into its Base64 form using the default charset. Unsafe characters are escaped. + * + * @param value + * object to convert to Base64 form + * @return Base64 object + * + * @throws EncoderException + * thrown if a failure condition is encountered during the encoding process. + */ + public Object encode(Object value) throws EncoderException { + if (value == null) { + return null; + } else if (value instanceof String) { + return encode((String) value); + } else { + throw new EncoderException("Objects of type " + + value.getClass().getName() + + " cannot be encoded using BCodec"); + } + } + + /** + * Decodes a Base64 object into its original form. Escaped characters are converted back to their original + * representation. + * + * @param value + * Base64 object to convert into its original form + * + * @return original object + * + * @throws DecoderException + * Thrown if the argument is not a <code>String</code>. Thrown if a failure condition is + * encountered during the decode process. + */ + public Object decode(Object value) throws DecoderException { + if (value == null) { + return null; + } else if (value instanceof String) { + return decode((String) value); + } else { + throw new DecoderException("Objects of type " + + value.getClass().getName() + + " cannot be decoded using BCodec"); + } + } + + /** + * The default charset used for string decoding and encoding. + * + * @return the default string charset. + */ + public String getDefaultCharset() { + return this.charset; + } +} |