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| | | package com.gitblit.utils;
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| | | import java.io.UnsupportedEncodingException;
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| | | import java.nio.ByteBuffer;
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| | | import java.nio.CharBuffer;
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| | | import java.nio.charset.CharacterCodingException;
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| | | import java.nio.charset.Charset;
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| | | import java.nio.charset.CharsetDecoder;
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| | | import java.nio.charset.IllegalCharsetNameException;
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| | | import java.nio.charset.UnsupportedCharsetException;
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| | | import java.security.MessageDigest;
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| | | import java.security.NoSuchAlgorithmException;
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| | | import java.util.ArrayList;
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| | | import java.util.Arrays;
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| | | import java.util.Collection;
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| | | import java.util.Collections;
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| | | import java.util.Comparator;
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| | | import java.util.LinkedHashSet;
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| | | import java.util.List;
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| | | import java.util.Set;
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| | | import java.util.regex.Matcher;
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| | | import java.util.regex.Pattern;
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| | | import java.util.regex.PatternSyntaxException;
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| | |
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| | | /**
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| | | // remember to append any characters to the right of a match
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| | | return sb.toString();
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| | | }
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| | | |
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| | | /**
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| | | * Decodes a string by trying several charsets until one does not throw a
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| | | * coding exception. Last resort is to interpret as UTF-8 with illegal
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| | | * character substitution.
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| | | * |
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| | | * @param content
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| | | * @param charsets optional
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| | | * @return a string
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| | | */
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| | | public static String decodeString(byte [] content, String... charsets) {
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| | | Set<String> sets = new LinkedHashSet<String>();
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| | | if (!ArrayUtils.isEmpty(charsets)) {
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| | | sets.addAll(Arrays.asList(charsets));
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| | | }
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| | | String value = null;
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| | | sets.addAll(Arrays.asList("UTF-8", "ISO-8859-1", Charset.defaultCharset().name()));
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| | | for (String charset : sets) {
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| | | try {
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| | | Charset cs = Charset.forName(charset);
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| | | CharsetDecoder decoder = cs.newDecoder();
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| | | CharBuffer buffer = decoder.decode(ByteBuffer.wrap(content));
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| | | value = buffer.toString();
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| | | break;
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| | | } catch (CharacterCodingException e) {
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| | | // ignore and advance to the next charset
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| | | } catch (IllegalCharsetNameException e) {
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| | | // ignore illegal charset names
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| | | } catch (UnsupportedCharsetException e) {
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| | | // ignore unsupported charsets
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| | | }
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| | | }
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| | | value = new String(content, Charset.forName("UTF-8"));
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| | | if (value.startsWith("\uFEFF")) {
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| | | // strip UTF-8 BOM
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| | | return value.substring(1);
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| | | }
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| | | return value;
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| | | }
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| | | |
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| | | /**
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| | | * Attempt to extract a repository name from a given url using regular
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| | | * expressions. If no match is made, then return whatever trails after
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| | | * the final / character.
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| | | * |
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| | | * @param regexUrls
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| | | * @return a repository path
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| | | */
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| | | public static String extractRepositoryPath(String url, String... urlpatterns) {
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| | | for (String urlPattern : urlpatterns) {
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| | | Pattern p = Pattern.compile(urlPattern);
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| | | Matcher m = p.matcher(url);
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| | | while (m.find()) {
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| | | String repositoryPath = m.group(1);
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| | | return repositoryPath;
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| | | }
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| | | }
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| | | // last resort
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| | | if (url.lastIndexOf('/') > -1) {
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| | | return url.substring(url.lastIndexOf('/') + 1);
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| | | }
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| | | return url;
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| | | }
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| | | } |
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