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Diffstat (limited to 'src/org/apache/commons/codec/net/URLCodec.java')
| -rw-r--r-- | src/org/apache/commons/codec/net/URLCodec.java | 364 |
1 files changed, 0 insertions, 364 deletions
diff --git a/src/org/apache/commons/codec/net/URLCodec.java b/src/org/apache/commons/codec/net/URLCodec.java deleted file mode 100644 index 1bc3507..0000000 --- a/src/org/apache/commons/codec/net/URLCodec.java +++ /dev/null @@ -1,364 +0,0 @@ -/* - * 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 org.apache.commons.codec.net; - -import java.io.ByteArrayOutputStream; -import java.io.UnsupportedEncodingException; -import java.util.BitSet; - -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 org.apache.commons.codec.StringDecoder; -import org.apache.commons.codec.StringEncoder; - -/** - * <p>Implements the 'www-form-urlencoded' encoding scheme, - * also misleadingly known as URL encoding.</p> - * - * <p>For more detailed information please refer to - * <a href="http://www.w3.org/TR/html4/interact/forms.html#h-17.13.4.1"> - * Chapter 17.13.4 'Form content types'</a> of the - * <a href="http://www.w3.org/TR/html4/">HTML 4.01 Specification<a></p> - * - * <p> - * This codec is meant to be a replacement for standard Java classes - * {@link java.net.URLEncoder} and {@link java.net.URLDecoder} - * on older Java platforms, as these classes in Java versions below - * 1.4 rely on the platform's default charset encoding. - * </p> - * - * @author Apache Software Foundation - * @since 1.2 - * @version $Id: URLCodec.java,v 1.19 2004/03/29 07:59:00 ggregory Exp $ - */ -public class URLCodec implements BinaryEncoder, BinaryDecoder, StringEncoder, StringDecoder { - - /** - * The default charset used for string decoding and encoding. - */ - protected String charset = StringEncodings.UTF8; - - protected static byte ESCAPE_CHAR = '%'; - /** - * BitSet of www-form-url safe characters. - */ - protected static final BitSet WWW_FORM_URL = new BitSet(256); - - // Static initializer for www_form_url - static { - // alpha characters - for (int i = 'a'; i <= 'z'; i++) { - WWW_FORM_URL.set(i); - } - for (int i = 'A'; i <= 'Z'; i++) { - WWW_FORM_URL.set(i); - } - // numeric characters - for (int i = '0'; i <= '9'; i++) { - WWW_FORM_URL.set(i); - } - // special chars - WWW_FORM_URL.set('-'); - WWW_FORM_URL.set('_'); - WWW_FORM_URL.set('.'); - WWW_FORM_URL.set('*'); - // blank to be replaced with + - WWW_FORM_URL.set(' '); - } - - - /** - * Default constructor. - */ - public URLCodec() { - super(); - } - - /** - * Constructor which allows for the selection of a default charset - * - * @param charset the default string charset to use. - */ - public URLCodec(String charset) { - super(); - this.charset = charset; - } - - /** - * Encodes an array of bytes into an array of URL safe 7-bit - * characters. Unsafe characters are escaped. - * - * @param urlsafe bitset of characters deemed URL safe - * @param bytes array of bytes to convert to URL safe characters - * @return array of bytes containing URL safe characters - */ - public static final byte[] encodeUrl(BitSet urlsafe, byte[] bytes) - { - if (bytes == null) { - return null; - } - if (urlsafe == null) { - urlsafe = WWW_FORM_URL; - } - - ByteArrayOutputStream buffer = new ByteArrayOutputStream(); - for (int i = 0; i < bytes.length; i++) { - int b = bytes[i]; - if (b < 0) { - b = 256 + b; - } - if (urlsafe.get(b)) { - if (b == ' ') { - b = '+'; - } - buffer.write(b); - } else { - buffer.write('%'); - char hex1 = Character.toUpperCase( - Character.forDigit((b >> 4) & 0xF, 16)); - char hex2 = Character.toUpperCase( - Character.forDigit(b & 0xF, 16)); - buffer.write(hex1); - buffer.write(hex2); - } - } - return buffer.toByteArray(); - } - - - /** - * Decodes an array of URL safe 7-bit characters into an array of - * original bytes. Escaped characters are converted back to their - * original representation. - * - * @param bytes array of URL safe characters - * @return array of original bytes - * @throws DecoderException Thrown if URL decoding is unsuccessful - */ - public static final byte[] decodeUrl(byte[] bytes) - throws DecoderException - { - if (bytes == null) { - return null; - } - ByteArrayOutputStream buffer = new ByteArrayOutputStream(); - for (int i = 0; i < bytes.length; i++) { - int b = bytes[i]; - if (b == '+') { - buffer.write(' '); - } else if (b == '%') { - try { - int u = Character.digit((char)bytes[++i], 16); - int l = Character.digit((char)bytes[++i], 16); - if (u == -1 || l == -1) { - throw new DecoderException("Invalid URL encoding"); - } - buffer.write((char)((u << 4) + l)); - } catch(ArrayIndexOutOfBoundsException e) { - throw new DecoderException("Invalid URL encoding"); - } - } else { - buffer.write(b); - } - } - return buffer.toByteArray(); - } - - - /** - * Encodes an array of bytes into an array of URL safe 7-bit - * characters. Unsafe characters are escaped. - * - * @param bytes array of bytes to convert to URL safe characters - * @return array of bytes containing URL safe characters - */ - public byte[] encode(byte[] bytes) { - return encodeUrl(WWW_FORM_URL, bytes); - } - - - /** - * Decodes an array of URL safe 7-bit characters into an array of - * original bytes. Escaped characters are converted back to their - * original representation. - * - * @param bytes array of URL safe characters - * @return array of original bytes - * @throws DecoderException Thrown if URL decoding is unsuccessful - */ - public byte[] decode(byte[] bytes) throws DecoderException { - return decodeUrl(bytes); - } - - - /** - * Encodes a string into its URL safe form using the specified - * string charset. Unsafe characters are escaped. - * - * @param pString string to convert to a URL safe form - * @param charset the charset for pString - * @return URL safe string - * @throws UnsupportedEncodingException Thrown if charset is not - * supported - */ - public String encode(String pString, String charset) - throws UnsupportedEncodingException - { - if (pString == null) { - return null; - } - return new String(encode(pString.getBytes(charset)), StringEncodings.US_ASCII); - } - - - /** - * Encodes a string into its URL safe form using the default string - * charset. Unsafe characters are escaped. - * - * @param pString string to convert to a URL safe form - * @return URL safe string - * @throws EncoderException Thrown if URL encoding is unsuccessful - * - * @see #getDefaultCharset() - */ - public String encode(String pString) throws EncoderException { - if (pString == null) { - return null; - } - try { - return encode(pString, getDefaultCharset()); - } catch(UnsupportedEncodingException e) { - throw new EncoderException(e.getMessage()); - } - } - - - /** - * Decodes a URL safe string into its original form using the - * specified encoding. Escaped characters are converted back - * to their original representation. - * - * @param pString URL safe string to convert into its original form - * @param charset the original string charset - * @return original string - * @throws DecoderException Thrown if URL decoding is unsuccessful - * @throws UnsupportedEncodingException Thrown if charset is not - * supported - */ - public String decode(String pString, String charset) - throws DecoderException, UnsupportedEncodingException - { - if (pString == null) { - return null; - } - return new String(decode(pString.getBytes(StringEncodings.US_ASCII)), charset); - } - - - /** - * Decodes a URL safe string into its original form using the default - * string charset. Escaped characters are converted back to their - * original representation. - * - * @param pString URL safe string to convert into its original form - * @return original string - * @throws DecoderException Thrown if URL decoding is unsuccessful - * - * @see #getDefaultCharset() - */ - public String decode(String pString) throws DecoderException { - if (pString == null) { - return null; - } - try { - return decode(pString, getDefaultCharset()); - } catch(UnsupportedEncodingException e) { - throw new DecoderException(e.getMessage()); - } - } - - /** - * Encodes an object into its URL safe form. Unsafe characters are - * escaped. - * - * @param pObject string to convert to a URL safe form - * @return URL safe object - * @throws EncoderException Thrown if URL encoding is not - * applicable to objects of this type or - * if encoding is unsuccessful - */ - public Object encode(Object pObject) throws EncoderException { - if (pObject == null) { - return null; - } else if (pObject instanceof byte[]) { - return encode((byte[])pObject); - } else if (pObject instanceof String) { - return encode((String)pObject); - } else { - throw new EncoderException("Objects of type " + - pObject.getClass().getName() + " cannot be URL encoded"); - - } - } - - /** - * Decodes a URL safe object into its original form. Escaped - * characters are converted back to their original representation. - * - * @param pObject URL safe object to convert into its original form - * @return original object - * @throws DecoderException Thrown if URL decoding is not - * applicable to objects of this type - * if decoding is unsuccessful - */ - public Object decode(Object pObject) throws DecoderException { - if (pObject == null) { - return null; - } else if (pObject instanceof byte[]) { - return decode((byte[])pObject); - } else if (pObject instanceof String) { - return decode((String)pObject); - } else { - throw new DecoderException("Objects of type " + - pObject.getClass().getName() + " cannot be URL decoded"); - - } - } - - /** - * The <code>String</code> encoding used for decoding and encoding. - * - * @return Returns the encoding. - * - * @deprecated use #getDefaultCharset() - */ - public String getEncoding() { - return this.charset; - } - - /** - * The default charset used for string decoding and encoding. - * - * @return the default string charset. - */ - public String getDefaultCharset() { - return this.charset; - } - -} |