commit | author | age
|
f13c4c
|
1 |
/*
|
JM |
2 |
* Copyright 2011 gitblit.com.
|
|
3 |
*
|
|
4 |
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
5 |
* you may not use this file except in compliance with the License.
|
|
6 |
* You may obtain a copy of the License at
|
|
7 |
*
|
|
8 |
* http://www.apache.org/licenses/LICENSE-2.0
|
|
9 |
*
|
|
10 |
* Unless required by applicable law or agreed to in writing, software
|
|
11 |
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
12 |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
13 |
* See the License for the specific language governing permissions and
|
|
14 |
* limitations under the License.
|
|
15 |
*/
|
87cc1e
|
16 |
package com.gitblit.utils;
|
JM |
17 |
|
|
18 |
import java.io.UnsupportedEncodingException;
|
|
19 |
import java.security.MessageDigest;
|
|
20 |
import java.security.NoSuchAlgorithmException;
|
f339f5
|
21 |
import java.util.ArrayList;
|
0b9119
|
22 |
import java.util.Collection;
|
94750e
|
23 |
import java.util.Collections;
|
JM |
24 |
import java.util.Comparator;
|
87cc1e
|
25 |
import java.util.List;
|
f339f5
|
26 |
import java.util.regex.PatternSyntaxException;
|
8c9a20
|
27 |
|
d9f687
|
28 |
/**
|
JM |
29 |
* Utility class of string functions.
|
|
30 |
*
|
|
31 |
* @author James Moger
|
|
32 |
*
|
|
33 |
*/
|
87cc1e
|
34 |
public class StringUtils {
|
8c9a20
|
35 |
|
JM |
36 |
public static final String MD5_TYPE = "MD5:";
|
309c55
|
37 |
|
d5623a
|
38 |
public static final String COMBINED_MD5_TYPE = "CMD5:";
|
3e087a
|
39 |
|
d9f687
|
40 |
/**
|
JM |
41 |
* Returns true if the string is null or empty.
|
|
42 |
*
|
|
43 |
* @param value
|
|
44 |
* @return true if string is null or empty
|
|
45 |
*/
|
87cc1e
|
46 |
public static boolean isEmpty(String value) {
|
JM |
47 |
return value == null || value.trim().length() == 0;
|
|
48 |
}
|
|
49 |
|
d9f687
|
50 |
/**
|
JM |
51 |
* Replaces carriage returns and line feeds with html line breaks.
|
|
52 |
*
|
|
53 |
* @param string
|
|
54 |
* @return plain text with html line breaks
|
|
55 |
*/
|
87cc1e
|
56 |
public static String breakLinesForHtml(String string) {
|
JM |
57 |
return string.replace("\r\n", "<br/>").replace("\r", "<br/>").replace("\n", "<br/>");
|
|
58 |
}
|
|
59 |
|
d9f687
|
60 |
/**
|
JM |
61 |
* Prepare text for html presentation. Replace sensitive characters with
|
|
62 |
* html entities.
|
|
63 |
*
|
|
64 |
* @param inStr
|
|
65 |
* @param changeSpace
|
|
66 |
* @return plain text escaped for html
|
|
67 |
*/
|
87cc1e
|
68 |
public static String escapeForHtml(String inStr, boolean changeSpace) {
|
JM |
69 |
StringBuffer retStr = new StringBuffer();
|
|
70 |
int i = 0;
|
|
71 |
while (i < inStr.length()) {
|
|
72 |
if (inStr.charAt(i) == '&') {
|
|
73 |
retStr.append("&");
|
|
74 |
} else if (inStr.charAt(i) == '<') {
|
|
75 |
retStr.append("<");
|
|
76 |
} else if (inStr.charAt(i) == '>') {
|
|
77 |
retStr.append(">");
|
|
78 |
} else if (inStr.charAt(i) == '\"') {
|
|
79 |
retStr.append(""");
|
|
80 |
} else if (changeSpace && inStr.charAt(i) == ' ') {
|
|
81 |
retStr.append(" ");
|
|
82 |
} else if (changeSpace && inStr.charAt(i) == '\t') {
|
|
83 |
retStr.append(" ");
|
8c9a20
|
84 |
} else {
|
JM |
85 |
retStr.append(inStr.charAt(i));
|
|
86 |
}
|
|
87 |
i++;
|
|
88 |
}
|
|
89 |
return retStr.toString();
|
|
90 |
}
|
|
91 |
|
d9f687
|
92 |
/**
|
JM |
93 |
* Decode html entities back into plain text characters.
|
|
94 |
*
|
|
95 |
* @param inStr
|
|
96 |
* @return returns plain text from html
|
|
97 |
*/
|
85c2e6
|
98 |
public static String decodeFromHtml(String inStr) {
|
JM |
99 |
return inStr.replace("&", "&").replace("<", "<").replace(">", ">")
|
|
100 |
.replace(""", "\"").replace(" ", " ");
|
|
101 |
}
|
|
102 |
|
d9f687
|
103 |
/**
|
JM |
104 |
* Encodes a url parameter by escaping troublesome characters.
|
|
105 |
*
|
|
106 |
* @param inStr
|
|
107 |
* @return properly escaped url
|
|
108 |
*/
|
8c9a20
|
109 |
public static String encodeURL(String inStr) {
|
JM |
110 |
StringBuffer retStr = new StringBuffer();
|
|
111 |
int i = 0;
|
|
112 |
while (i < inStr.length()) {
|
|
113 |
if (inStr.charAt(i) == '/') {
|
|
114 |
retStr.append("%2F");
|
|
115 |
} else if (inStr.charAt(i) == ' ') {
|
|
116 |
retStr.append("%20");
|
2a7306
|
117 |
} else {
|
87cc1e
|
118 |
retStr.append(inStr.charAt(i));
|
2a7306
|
119 |
}
|
87cc1e
|
120 |
i++;
|
JM |
121 |
}
|
|
122 |
return retStr.toString();
|
|
123 |
}
|
|
124 |
|
d9f687
|
125 |
/**
|
JM |
126 |
* Flatten the list of strings into a single string with a space separator.
|
|
127 |
*
|
|
128 |
* @param values
|
|
129 |
* @return flattened list
|
|
130 |
*/
|
0b9119
|
131 |
public static String flattenStrings(Collection<String> values) {
|
8a2e9c
|
132 |
return flattenStrings(values, " ");
|
JM |
133 |
}
|
|
134 |
|
d9f687
|
135 |
/**
|
JM |
136 |
* Flatten the list of strings into a single string with the specified
|
|
137 |
* separator.
|
|
138 |
*
|
|
139 |
* @param values
|
|
140 |
* @param separator
|
|
141 |
* @return flattened list
|
|
142 |
*/
|
0b9119
|
143 |
public static String flattenStrings(Collection<String> values, String separator) {
|
87cc1e
|
144 |
StringBuilder sb = new StringBuilder();
|
JM |
145 |
for (String value : values) {
|
8a2e9c
|
146 |
sb.append(value).append(separator);
|
87cc1e
|
147 |
}
|
6e666f
|
148 |
if (sb.length() > 0) {
|
JM |
149 |
// truncate trailing separator
|
|
150 |
sb.setLength(sb.length() - separator.length());
|
|
151 |
}
|
87cc1e
|
152 |
return sb.toString().trim();
|
JM |
153 |
}
|
|
154 |
|
d9f687
|
155 |
/**
|
JM |
156 |
* Returns a string trimmed to a maximum length with trailing ellipses. If
|
|
157 |
* the string length is shorter than the max, the original string is
|
|
158 |
* returned.
|
|
159 |
*
|
|
160 |
* @param value
|
|
161 |
* @param max
|
|
162 |
* @return trimmed string
|
|
163 |
*/
|
87cc1e
|
164 |
public static String trimString(String value, int max) {
|
JM |
165 |
if (value.length() <= max) {
|
|
166 |
return value;
|
|
167 |
}
|
|
168 |
return value.substring(0, max - 3) + "...";
|
|
169 |
}
|
|
170 |
|
d9f687
|
171 |
/**
|
JM |
172 |
* Returns a trimmed shortlog message.
|
|
173 |
*
|
|
174 |
* @param string
|
|
175 |
* @return trimmed shortlog message
|
|
176 |
*/
|
87cc1e
|
177 |
public static String trimShortLog(String string) {
|
JM |
178 |
return trimString(string, 60);
|
|
179 |
}
|
|
180 |
|
d9f687
|
181 |
/**
|
JM |
182 |
* Left pad a string with the specified character, if the string length is
|
|
183 |
* less than the specified length.
|
|
184 |
*
|
|
185 |
* @param input
|
|
186 |
* @param length
|
|
187 |
* @param pad
|
|
188 |
* @return left-padded string
|
|
189 |
*/
|
87cc1e
|
190 |
public static String leftPad(String input, int length, char pad) {
|
JM |
191 |
if (input.length() < length) {
|
|
192 |
StringBuilder sb = new StringBuilder();
|
|
193 |
for (int i = 0, len = length - input.length(); i < len; i++) {
|
|
194 |
sb.append(pad);
|
|
195 |
}
|
|
196 |
sb.append(input);
|
|
197 |
return sb.toString();
|
|
198 |
}
|
|
199 |
return input;
|
|
200 |
}
|
|
201 |
|
d9f687
|
202 |
/**
|
JM |
203 |
* Right pad a string with the specified character, if the string length is
|
|
204 |
* less then the specified length.
|
|
205 |
*
|
|
206 |
* @param input
|
|
207 |
* @param length
|
|
208 |
* @param pad
|
|
209 |
* @return right-padded string
|
|
210 |
*/
|
87cc1e
|
211 |
public static String rightPad(String input, int length, char pad) {
|
JM |
212 |
if (input.length() < length) {
|
|
213 |
StringBuilder sb = new StringBuilder();
|
|
214 |
sb.append(input);
|
|
215 |
for (int i = 0, len = length - input.length(); i < len; i++) {
|
|
216 |
sb.append(pad);
|
|
217 |
}
|
|
218 |
return sb.toString();
|
|
219 |
}
|
|
220 |
return input;
|
|
221 |
}
|
|
222 |
|
d9f687
|
223 |
/**
|
JM |
224 |
* Calculates the SHA1 of the string.
|
|
225 |
*
|
|
226 |
* @param text
|
|
227 |
* @return sha1 of the string
|
|
228 |
*/
|
87cc1e
|
229 |
public static String getSHA1(String text) {
|
JM |
230 |
try {
|
|
231 |
byte[] bytes = text.getBytes("iso-8859-1");
|
|
232 |
return getSHA1(bytes);
|
|
233 |
} catch (UnsupportedEncodingException u) {
|
|
234 |
throw new RuntimeException(u);
|
|
235 |
}
|
|
236 |
}
|
|
237 |
|
d9f687
|
238 |
/**
|
JM |
239 |
* Calculates the SHA1 of the byte array.
|
|
240 |
*
|
|
241 |
* @param bytes
|
|
242 |
* @return sha1 of the byte array
|
|
243 |
*/
|
87cc1e
|
244 |
public static String getSHA1(byte[] bytes) {
|
JM |
245 |
try {
|
|
246 |
MessageDigest md = MessageDigest.getInstance("SHA-1");
|
|
247 |
md.update(bytes, 0, bytes.length);
|
8c9a20
|
248 |
byte[] digest = md.digest();
|
JM |
249 |
return toHex(digest);
|
87cc1e
|
250 |
} catch (NoSuchAlgorithmException t) {
|
JM |
251 |
throw new RuntimeException(t);
|
f97bf0
|
252 |
}
|
8c9a20
|
253 |
}
|
JM |
254 |
|
d9f687
|
255 |
/**
|
JM |
256 |
* Calculates the MD5 of the string.
|
|
257 |
*
|
|
258 |
* @param string
|
|
259 |
* @return md5 of the string
|
|
260 |
*/
|
8c9a20
|
261 |
public static String getMD5(String string) {
|
JM |
262 |
try {
|
|
263 |
MessageDigest md = MessageDigest.getInstance("MD5");
|
|
264 |
md.reset();
|
|
265 |
md.update(string.getBytes("iso-8859-1"));
|
|
266 |
byte[] digest = md.digest();
|
|
267 |
return toHex(digest);
|
5450d0
|
268 |
} catch (UnsupportedEncodingException u) {
|
JM |
269 |
throw new RuntimeException(u);
|
|
270 |
} catch (NoSuchAlgorithmException t) {
|
|
271 |
throw new RuntimeException(t);
|
8c9a20
|
272 |
}
|
JM |
273 |
}
|
|
274 |
|
d9f687
|
275 |
/**
|
JM |
276 |
* Returns the hex representation of the byte array.
|
|
277 |
*
|
|
278 |
* @param bytes
|
|
279 |
* @return byte array as hex string
|
|
280 |
*/
|
8c9a20
|
281 |
private static String toHex(byte[] bytes) {
|
JM |
282 |
StringBuilder sb = new StringBuilder(bytes.length * 2);
|
|
283 |
for (int i = 0; i < bytes.length; i++) {
|
|
284 |
if (((int) bytes[i] & 0xff) < 0x10) {
|
|
285 |
sb.append('0');
|
|
286 |
}
|
|
287 |
sb.append(Long.toString((int) bytes[i] & 0xff, 16));
|
|
288 |
}
|
|
289 |
return sb.toString();
|
|
290 |
}
|
85c2e6
|
291 |
|
d9f687
|
292 |
/**
|
JM |
293 |
* Returns the root path of the specified path. Returns a blank string if
|
|
294 |
* there is no root path.
|
|
295 |
*
|
|
296 |
* @param path
|
|
297 |
* @return root path or blank
|
|
298 |
*/
|
00afd7
|
299 |
public static String getRootPath(String path) {
|
JM |
300 |
if (path.indexOf('/') > -1) {
|
ec97f7
|
301 |
return path.substring(0, path.lastIndexOf('/'));
|
00afd7
|
302 |
}
|
JM |
303 |
return "";
|
|
304 |
}
|
008322
|
305 |
|
d9f687
|
306 |
/**
|
JM |
307 |
* Returns the path remainder after subtracting the basePath from the
|
|
308 |
* fullPath.
|
|
309 |
*
|
|
310 |
* @param basePath
|
|
311 |
* @param fullPath
|
|
312 |
* @return the relative path
|
|
313 |
*/
|
008322
|
314 |
public static String getRelativePath(String basePath, String fullPath) {
|
a125cf
|
315 |
String relativePath = fullPath.substring(basePath.length()).replace('\\', '/');
|
JM |
316 |
if (relativePath.charAt(0) == '/') {
|
|
317 |
relativePath = relativePath.substring(1);
|
|
318 |
}
|
|
319 |
return relativePath;
|
|
320 |
}
|
8c9a20
|
321 |
|
d9f687
|
322 |
/**
|
JM |
323 |
* Splits the space-separated string into a list of strings.
|
|
324 |
*
|
|
325 |
* @param value
|
|
326 |
* @return list of strings
|
|
327 |
*/
|
f339f5
|
328 |
public static List<String> getStringsFromValue(String value) {
|
JM |
329 |
return getStringsFromValue(value, " ");
|
|
330 |
}
|
8c9a20
|
331 |
|
d9f687
|
332 |
/**
|
JM |
333 |
* Splits the string into a list of string by the specified separator.
|
|
334 |
*
|
|
335 |
* @param value
|
|
336 |
* @param separator
|
|
337 |
* @return list of strings
|
|
338 |
*/
|
f339f5
|
339 |
public static List<String> getStringsFromValue(String value, String separator) {
|
JM |
340 |
List<String> strings = new ArrayList<String>();
|
|
341 |
try {
|
|
342 |
String[] chunks = value.split(separator);
|
|
343 |
for (String chunk : chunks) {
|
|
344 |
chunk = chunk.trim();
|
|
345 |
if (chunk.length() > 0) {
|
|
346 |
strings.add(chunk);
|
|
347 |
}
|
|
348 |
}
|
|
349 |
} catch (PatternSyntaxException e) {
|
|
350 |
throw new RuntimeException(e);
|
|
351 |
}
|
|
352 |
return strings;
|
|
353 |
}
|
831469
|
354 |
|
JM |
355 |
/**
|
|
356 |
* Validates that a name is composed of letters, digits, or limited other
|
|
357 |
* characters.
|
|
358 |
*
|
|
359 |
* @param name
|
|
360 |
* @return the first invalid character found or null if string is acceptable
|
|
361 |
*/
|
|
362 |
public static Character findInvalidCharacter(String name) {
|
|
363 |
char[] validChars = { '/', '.', '_', '-' };
|
|
364 |
for (char c : name.toCharArray()) {
|
|
365 |
if (!Character.isLetterOrDigit(c)) {
|
|
366 |
boolean ok = false;
|
|
367 |
for (char vc : validChars) {
|
|
368 |
ok |= c == vc;
|
|
369 |
}
|
|
370 |
if (!ok) {
|
|
371 |
return c;
|
|
372 |
}
|
|
373 |
}
|
|
374 |
}
|
|
375 |
return null;
|
|
376 |
}
|
|
377 |
|
|
378 |
/**
|
|
379 |
* Simple fuzzy string comparison. This is a case-insensitive check. A
|
|
380 |
* single wildcard * value is supported.
|
|
381 |
*
|
|
382 |
* @param value
|
|
383 |
* @param pattern
|
|
384 |
* @return true if the value matches the pattern
|
|
385 |
*/
|
|
386 |
public static boolean fuzzyMatch(String value, String pattern) {
|
|
387 |
if (value.equalsIgnoreCase(pattern)) {
|
|
388 |
return true;
|
|
389 |
}
|
|
390 |
if (pattern.contains("*")) {
|
|
391 |
boolean prefixMatches = false;
|
|
392 |
boolean suffixMatches = false;
|
|
393 |
|
|
394 |
int wildcard = pattern.indexOf('*');
|
|
395 |
String prefix = pattern.substring(0, wildcard).toLowerCase();
|
|
396 |
prefixMatches = value.toLowerCase().startsWith(prefix);
|
|
397 |
|
|
398 |
if (pattern.length() > (wildcard + 1)) {
|
|
399 |
String suffix = pattern.substring(wildcard + 1).toLowerCase();
|
|
400 |
suffixMatches = value.toLowerCase().endsWith(suffix);
|
|
401 |
return prefixMatches && suffixMatches;
|
|
402 |
}
|
|
403 |
return prefixMatches || suffixMatches;
|
|
404 |
}
|
|
405 |
return false;
|
|
406 |
}
|
94750e
|
407 |
|
JM |
408 |
/**
|
|
409 |
* Compare two repository names for proper group sorting.
|
|
410 |
*
|
|
411 |
* @param r1
|
|
412 |
* @param r2
|
|
413 |
* @return
|
|
414 |
*/
|
|
415 |
public static int compareRepositoryNames(String r1, String r2) {
|
|
416 |
// sort root repositories first, alphabetically
|
|
417 |
// then sort grouped repositories, alphabetically
|
|
418 |
int s1 = r1.indexOf('/');
|
|
419 |
int s2 = r2.indexOf('/');
|
|
420 |
if (s1 == -1 && s2 == -1) {
|
|
421 |
// neither grouped
|
|
422 |
return r1.compareTo(r2);
|
|
423 |
} else if (s1 > -1 && s2 > -1) {
|
|
424 |
// both grouped
|
|
425 |
return r1.compareTo(r2);
|
|
426 |
} else if (s1 == -1) {
|
|
427 |
return -1;
|
|
428 |
} else if (s2 == -1) {
|
|
429 |
return 1;
|
|
430 |
}
|
|
431 |
return 0;
|
|
432 |
}
|
|
433 |
|
|
434 |
/**
|
|
435 |
* Sort grouped repository names.
|
|
436 |
*
|
|
437 |
* @param list
|
|
438 |
*/
|
|
439 |
public static void sortRepositorynames(List<String> list) {
|
|
440 |
Collections.sort(list, new Comparator<String>() {
|
|
441 |
@Override
|
|
442 |
public int compare(String o1, String o2) {
|
|
443 |
return compareRepositoryNames(o1, o2);
|
|
444 |
}
|
|
445 |
});
|
|
446 |
}
|
309c55
|
447 |
|
JM |
448 |
public static String getColor(String value) {
|
|
449 |
int cs = 0;
|
|
450 |
for (char c : getMD5(value.toLowerCase()).toCharArray()) {
|
|
451 |
cs += c;
|
|
452 |
}
|
|
453 |
int n = (cs % 360);
|
|
454 |
float hue = ((float) n) / 360;
|
|
455 |
return hsvToRgb(hue, 0.90f, 0.65f);
|
|
456 |
}
|
|
457 |
|
|
458 |
public static String hsvToRgb(float hue, float saturation, float value) {
|
|
459 |
int h = (int) (hue * 6);
|
|
460 |
float f = hue * 6 - h;
|
|
461 |
float p = value * (1 - saturation);
|
|
462 |
float q = value * (1 - f * saturation);
|
|
463 |
float t = value * (1 - (1 - f) * saturation);
|
|
464 |
|
|
465 |
switch (h) {
|
|
466 |
case 0:
|
|
467 |
return rgbToString(value, t, p);
|
|
468 |
case 1:
|
|
469 |
return rgbToString(q, value, p);
|
|
470 |
case 2:
|
|
471 |
return rgbToString(p, value, t);
|
|
472 |
case 3:
|
|
473 |
return rgbToString(p, q, value);
|
|
474 |
case 4:
|
|
475 |
return rgbToString(t, p, value);
|
|
476 |
case 5:
|
|
477 |
return rgbToString(value, p, q);
|
|
478 |
default:
|
|
479 |
throw new RuntimeException(
|
|
480 |
"Something went wrong when converting from HSV to RGB. Input was " + hue + ", "
|
|
481 |
+ saturation + ", " + value);
|
|
482 |
}
|
|
483 |
}
|
|
484 |
|
|
485 |
public static String rgbToString(float r, float g, float b) {
|
|
486 |
String rs = Integer.toHexString((int) (r * 256));
|
|
487 |
String gs = Integer.toHexString((int) (g * 256));
|
|
488 |
String bs = Integer.toHexString((int) (b * 256));
|
|
489 |
return "#" + rs + gs + bs;
|
|
490 |
}
|
6c6fbf
|
491 |
|
JM |
492 |
public static String stripDotGit(String value) {
|
|
493 |
if (value.toLowerCase().endsWith(".git")) {
|
|
494 |
return value.substring(0, value.length() - 4);
|
|
495 |
}
|
|
496 |
return value;
|
|
497 |
}
|
309c55
|
498 |
} |