githubFork/gitblit.git - Solinfo Gitblit

			@@ -15,14 +15,27 @@
			*/
			package com.gitblit.utils;

			import java.io.ByteArrayOutputStream;
			import java.io.UnsupportedEncodingException;
			import java.nio.ByteBuffer;
			import java.nio.CharBuffer;
			import java.nio.charset.CharacterCodingException;
			import java.nio.charset.Charset;
			import java.nio.charset.CharsetDecoder;
			import java.nio.charset.IllegalCharsetNameException;
			import java.nio.charset.UnsupportedCharsetException;
			import java.security.MessageDigest;
			import java.security.NoSuchAlgorithmException;
			import java.util.ArrayList;
			import java.util.Arrays;
			import java.util.Collection;
			import java.util.Collections;
			import java.util.Comparator;
			import java.util.LinkedHashSet;
			import java.util.List;
			import java.util.Set;
			import java.util.regex.Matcher;
			import java.util.regex.Pattern;
			import java.util.regex.PatternSyntaxException;

			/**
			@@ -66,7 +79,7 @@
			* @return plain text escaped for html
			*/
			public static String escapeForHtml(String inStr, boolean changeSpace) {
			StringBuffer retStr = new StringBuffer();
			StringBuilder retStr = new StringBuilder();
			int i = 0;
			while (i < inStr.length()) {
			if (inStr.charAt(i) == '&') {
			@@ -107,7 +120,7 @@
			* @return properly escaped url
			*/
			public static String encodeURL(String inStr) {
			StringBuffer retStr = new StringBuffer();
			StringBuilder retStr = new StringBuilder();
			int i = 0;
			while (i < inStr.length()) {
			if (inStr.charAt(i) == '/') {
			@@ -327,20 +340,24 @@
			* @return list of strings
			*/
			public static List<String> getStringsFromValue(String value, String separator) {
			List<String> strings = new ArrayList<String>();
			try {
			String[] chunks = value.split(separator);
			for (String chunk : chunks) {
			chunk = chunk.trim();
			if (chunk.length() > 0) {
			strings.add(chunk);
			}
			}
			} catch (PatternSyntaxException e) {
			throw new RuntimeException(e);
			}
			return strings;
			}
			List<String> strings = new ArrayList<String>();
			try {
			String[] chunks = value.split(separator + "(?=([^\"]\"[^\"]\")[^\"]$)");
			for (String chunk : chunks) {
			chunk = chunk.trim();
			if (chunk.length() > 0) {
			if (chunk.charAt(0) == '"' && chunk.charAt(chunk.length() - 1) == '"') {
			// strip double quotes
			chunk = chunk.substring(1, chunk.length() - 1).trim();
			}
			strings.add(chunk);
			}
			}
			} catch (PatternSyntaxException e) {
			throw new RuntimeException(e);
			}
			return strings;
			}

			/**
			* Validates that a name is composed of letters, digits, or limited other
			@@ -350,7 +367,7 @@
			* @return the first invalid character found or null if string is acceptable
			*/
			public static Character findInvalidCharacter(String name) {
			char[] validChars = { '/', '.', '_', '-' };
			char[] validChars = { '/', '.', '_', '-', '~' };
			for (char c : name.toCharArray()) {
			if (!Character.isLetterOrDigit(c)) {
			boolean ok = false;
			@@ -518,4 +535,156 @@
			}
			return "";
			}

			/**
			* Replace all occurences of a substring within a string with
			* another string.
			*
			* From Spring StringUtils.
			*
			* @param inString String to examine
			* @param oldPattern String to replace
			* @param newPattern String to insert
			* @return a String with the replacements
			*/
			public static String replace(String inString, String oldPattern, String newPattern) {
			StringBuilder sb = new StringBuilder();
			int pos = 0; // our position in the old string
			int index = inString.indexOf(oldPattern);
			// the index of an occurrence we've found, or -1
			int patLen = oldPattern.length();
			while (index >= 0) {
			sb.append(inString.substring(pos, index));
			sb.append(newPattern);
			pos = index + patLen;
			index = inString.indexOf(oldPattern, pos);
			}
			sb.append(inString.substring(pos));
			// remember to append any characters to the right of a match
			return sb.toString();
			}

			/**
			* Decodes a string by trying several charsets until one does not throw a
			* coding exception. Last resort is to interpret as UTF-8 with illegal
			* character substitution.
			*
			* @param content
			* @param charsets optional
			* @return a string
			*/
			public static String decodeString(byte [] content, String... charsets) {
			Set<String> sets = new LinkedHashSet<String>();
			if (!ArrayUtils.isEmpty(charsets)) {
			sets.addAll(Arrays.asList(charsets));
			}
			String value = null;
			sets.addAll(Arrays.asList("UTF-8", "ISO-8859-1", Charset.defaultCharset().name()));
			for (String charset : sets) {
			try {
			Charset cs = Charset.forName(charset);
			CharsetDecoder decoder = cs.newDecoder();
			CharBuffer buffer = decoder.decode(ByteBuffer.wrap(content));
			value = buffer.toString();
			break;
			} catch (CharacterCodingException e) {
			// ignore and advance to the next charset
			} catch (IllegalCharsetNameException e) {
			// ignore illegal charset names
			} catch (UnsupportedCharsetException e) {
			// ignore unsupported charsets
			}
			}
			if (value.startsWith("\uFEFF")) {
			// strip UTF-8 BOM
			return value.substring(1);
			}
			return value;
			}

			/**
			* Attempt to extract a repository name from a given url using regular
			* expressions. If no match is made, then return whatever trails after
			* the final / character.
			*
			* @param regexUrls
			* @return a repository path
			*/
			public static String extractRepositoryPath(String url, String... urlpatterns) {
			for (String urlPattern : urlpatterns) {
			Pattern p = Pattern.compile(urlPattern);
			Matcher m = p.matcher(url);
			while (m.find()) {
			String repositoryPath = m.group(1);
			return repositoryPath;
			}
			}
			// last resort
			if (url.lastIndexOf('/') > -1) {
			return url.substring(url.lastIndexOf('/') + 1);
			}
			return url;
			}

			/**
			* Converts a string with \nnn sequences into a UTF-8 encoded string.
			* @param input
			* @return
			*/
			public static String convertOctal(String input) {
			try {
			ByteArrayOutputStream bytes = new ByteArrayOutputStream();
			Pattern p = Pattern.compile("(\\\\\\d{3})");
			Matcher m = p.matcher(input);
			int i = 0;
			while (m.find()) {
			bytes.write(input.substring(i, m.start()).getBytes("UTF-8"));
			// replace octal encoded value
			// strip leading \ character
			String oct = m.group().substring(1);
			bytes.write(Integer.parseInt(oct, 8));
			i = m.end();
			}
			if (bytes.size() == 0) {
			// no octal matches
			return input;
			} else {
			if (i < input.length()) {
			// add remainder of string
			bytes.write(input.substring(i).getBytes("UTF-8"));
			}
			}
			return bytes.toString("UTF-8");
			} catch (Exception e) {
			e.printStackTrace();
			}
			return input;
			}

			/**
			* Returns the first path element of a path string. If no path separator is
			* found in the path, an empty string is returned.
			*
			* @param path
			* @return the first element in the path
			*/
			public static String getFirstPathElement(String path) {
			if (path.indexOf('/') > -1) {
			return path.substring(0, path.indexOf('/')).trim();
			}
			return "";
			}

			/**
			* Returns the last path element of a path string
			*
			* @param path
			* @return the last element in the path
			*/
			public static String getLastPathElement(String path) {
			if (path.indexOf('/') > -1) {
			return path.substring(path.lastIndexOf('/') + 1);
			}
			return path;
			}
			}