Commit | Line | Data |
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7da41ecd | 1 | package be.nikiroo.jvcard.resources; |
a3b510ab | 2 | |
26d254a3 | 3 | import java.awt.Image; |
4d688b05 NR |
4 | import java.awt.geom.AffineTransform; |
5 | import java.awt.image.AffineTransformOp; | |
26d254a3 NR |
6 | import java.awt.image.BufferedImage; |
7 | import java.io.ByteArrayInputStream; | |
8 | import java.io.ByteArrayOutputStream; | |
a1783d00 NR |
9 | import java.io.File; |
10 | import java.io.FileInputStream; | |
26d254a3 | 11 | import java.io.IOException; |
a1783d00 | 12 | import java.io.InputStream; |
cf77cb35 NR |
13 | import java.security.MessageDigest; |
14 | import java.security.NoSuchAlgorithmException; | |
296a0b75 NR |
15 | import java.text.Normalizer; |
16 | import java.text.Normalizer.Form; | |
b9f192ed NR |
17 | import java.text.ParseException; |
18 | import java.text.SimpleDateFormat; | |
19 | import java.util.Date; | |
296a0b75 NR |
20 | import java.util.regex.Pattern; |
21 | ||
26d254a3 NR |
22 | import javax.imageio.ImageIO; |
23 | import javax.xml.bind.DatatypeConverter; | |
24 | ||
a3b510ab NR |
25 | import com.googlecode.lanterna.gui2.LinearLayout.Alignment; |
26 | ||
27 | public class StringUtils { | |
296a0b75 NR |
28 | static private Pattern marks = Pattern |
29 | .compile("[\\p{InCombiningDiacriticalMarks}\\p{IsLm}\\p{IsSk}]+"); | |
a3b510ab | 30 | |
296a0b75 NR |
31 | /** |
32 | * Fix the size of the given {@link String} either with space-padding or by | |
33 | * shortening it. | |
34 | * | |
35 | * @param text | |
36 | * the {@link String} to fix | |
37 | * @param width | |
3634193b | 38 | * the size of the resulting {@link String} or -1 for a noop |
296a0b75 NR |
39 | * |
40 | * @return the resulting {@link String} of size <i>size</i> | |
41 | */ | |
a3b510ab NR |
42 | static public String padString(String text, int width) { |
43 | return padString(text, width, true, Alignment.Beginning); | |
44 | } | |
45 | ||
296a0b75 NR |
46 | /** |
47 | * Fix the size of the given {@link String} either with space-padding or by | |
48 | * optionally shortening it. | |
49 | * | |
50 | * @param text | |
51 | * the {@link String} to fix | |
52 | * @param width | |
53 | * the size of the resulting {@link String} if the text fits or | |
3634193b | 54 | * if cut is TRUE or -1 for a noop |
296a0b75 NR |
55 | * @param cut |
56 | * cut the {@link String} shorter if needed | |
57 | * @param align | |
58 | * align the {@link String} in this position if we have enough | |
59 | * space | |
60 | * | |
61 | * @return the resulting {@link String} of size <i>size</i> minimum | |
62 | */ | |
a3b510ab NR |
63 | static public String padString(String text, int width, boolean cut, |
64 | Alignment align) { | |
26d254a3 | 65 | |
a3b510ab NR |
66 | if (width >= 0) { |
67 | if (text == null) | |
68 | text = ""; | |
69 | ||
70 | int diff = width - text.length(); | |
71 | ||
72 | if (diff < 0) { | |
73 | if (cut) | |
74 | text = text.substring(0, width); | |
75 | } else if (diff > 0) { | |
76 | if (diff < 2 && align != Alignment.End) | |
77 | align = Alignment.Beginning; | |
78 | ||
79 | switch (align) { | |
80 | case Beginning: | |
81 | text = text + new String(new char[diff]).replace('\0', ' '); | |
82 | break; | |
83 | case End: | |
84 | text = new String(new char[diff]).replace('\0', ' ') + text; | |
85 | break; | |
86 | case Center: | |
87 | case Fill: | |
88 | default: | |
89 | int pad1 = (diff) / 2; | |
90 | int pad2 = (diff + 1) / 2; | |
91 | text = new String(new char[pad1]).replace('\0', ' ') + text | |
92 | + new String(new char[pad2]).replace('\0', ' '); | |
93 | break; | |
94 | } | |
95 | } | |
96 | } | |
97 | ||
98 | return text; | |
99 | } | |
100 | ||
296a0b75 NR |
101 | /** |
102 | * Sanitise the given input to make it more Terminal-friendly by removing | |
103 | * combining characters. | |
104 | * | |
105 | * @param input | |
106 | * the input to sanitise | |
107 | * @param allowUnicode | |
108 | * allow Unicode or only allow ASCII Latin characters | |
109 | * | |
110 | * @return the sanitised {@link String} | |
111 | */ | |
112 | static public String sanitize(String input, boolean allowUnicode) { | |
113 | return sanitize(input, allowUnicode, !allowUnicode); | |
114 | } | |
115 | ||
116 | /** | |
117 | * Sanitise the given input to make it more Terminal-friendly by removing | |
118 | * combining characters. | |
119 | * | |
120 | * @param input | |
121 | * the input to sanitise | |
122 | * @param allowUnicode | |
123 | * allow Unicode or only allow ASCII Latin characters | |
124 | * @param removeAllAccents | |
125 | * TRUE to replace all accentuated characters by their non | |
126 | * accentuated counter-parts | |
127 | * | |
128 | * @return the sanitised {@link String} | |
129 | */ | |
130 | static public String sanitize(String input, boolean allowUnicode, | |
131 | boolean removeAllAccents) { | |
132 | ||
133 | if (removeAllAccents) { | |
134 | input = Normalizer.normalize(input, Form.NFKD); | |
135 | input = marks.matcher(input).replaceAll(""); | |
136 | } | |
137 | ||
138 | input = Normalizer.normalize(input, Form.NFKC); | |
139 | ||
140 | if (!allowUnicode) { | |
adf9c449 NR |
141 | StringBuilder builder = new StringBuilder(); |
142 | for (int index = 0; index < input.length(); index++) { | |
143 | char car = input.charAt(index); | |
144 | // displayable chars in ASCII are in the range 32<->255, | |
145 | // except DEL (127) | |
146 | if (car >= 32 && car <= 255 && car != 127) { | |
147 | builder.append(car); | |
148 | } | |
149 | } | |
150 | input = builder.toString(); | |
296a0b75 NR |
151 | } |
152 | ||
153 | return input; | |
154 | } | |
b9f192ed NR |
155 | |
156 | /** | |
157 | * Convert between time in milliseconds to {@link String} in a "static" way | |
158 | * (to exchange data over the wire, for instance). | |
159 | * | |
160 | * @param time | |
161 | * the time in milliseconds | |
162 | * | |
163 | * @return the time as a {@link String} | |
164 | */ | |
165 | static public String fromTime(long time) { | |
166 | SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); | |
167 | return sdf.format(new Date(time)); | |
168 | } | |
169 | ||
170 | /** | |
171 | * Convert between time as a {@link String} to milliseconds in a "static" | |
172 | * way (to exchange data over the wire, for instance). | |
173 | * | |
174 | * @param time | |
175 | * the time as a {@link String} | |
176 | * | |
177 | * @return the time in milliseconds | |
178 | */ | |
179 | static public long toTime(String display) { | |
180 | SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); | |
181 | try { | |
182 | return sdf.parse(display).getTime(); | |
183 | } catch (ParseException e) { | |
184 | return -1; | |
185 | } | |
186 | } | |
cf77cb35 | 187 | |
26d254a3 NR |
188 | /** |
189 | * Convert the given {@link Image} object into a Base64 representation of | |
190 | * the same {@link Image}. object. | |
191 | * | |
192 | * @param image | |
193 | * the {@link Image} object to convert | |
194 | * | |
195 | * @return the Base64 representation | |
a1783d00 NR |
196 | * |
197 | * @throws IOException | |
198 | * in case of IO error | |
26d254a3 | 199 | */ |
a1783d00 | 200 | static public String fromImage(BufferedImage image) throws IOException { |
26d254a3 NR |
201 | String imageString = null; |
202 | ByteArrayOutputStream out = new ByteArrayOutputStream(); | |
203 | ||
a1783d00 NR |
204 | ImageIO.write(image, "jpeg", out); |
205 | byte[] imageBytes = out.toByteArray(); | |
26d254a3 | 206 | |
a1783d00 | 207 | imageString = DatatypeConverter.printBase64Binary(imageBytes); |
26d254a3 | 208 | |
a1783d00 | 209 | out.close(); |
26d254a3 NR |
210 | |
211 | return imageString; | |
212 | } | |
213 | ||
a1783d00 NR |
214 | /** |
215 | * Convert the given {@link File} image into a Base64 representation of the | |
216 | * same {@link File}. | |
217 | * | |
218 | * @param file | |
219 | * the {@link File} image to convert | |
220 | * | |
221 | * @return the Base64 representation | |
222 | * | |
223 | * @throws IOException | |
224 | * in case of IO error | |
225 | */ | |
226 | static public String fromImage(File file) throws IOException { | |
227 | String fileString = null; | |
228 | ByteArrayOutputStream out = new ByteArrayOutputStream(); | |
229 | ||
230 | byte[] buf = new byte[8192]; | |
231 | InputStream in = new FileInputStream(file); | |
232 | ||
233 | int c = 0; | |
234 | while ((c = in.read(buf, 0, buf.length)) > 0) { | |
235 | out.write(buf, 0, c); | |
236 | } | |
237 | out.flush(); | |
238 | in.close(); | |
239 | ||
240 | fileString = DatatypeConverter.printBase64Binary(out.toByteArray()); | |
241 | out.close(); | |
242 | ||
243 | return fileString; | |
244 | } | |
245 | ||
26d254a3 NR |
246 | /** |
247 | * Convert the given Base64 representation of an image into an {@link Image} | |
248 | * object. | |
249 | * | |
250 | * @param b64data | |
251 | * the {@link Image} in Base64 format | |
252 | * | |
253 | * @return the {@link Image} object | |
254 | * | |
255 | * @throws IOException | |
256 | * in case of IO error | |
257 | */ | |
258 | static public BufferedImage toImage(String b64data) throws IOException { | |
4d688b05 NR |
259 | ByteArrayInputStream in = new ByteArrayInputStream( |
260 | DatatypeConverter.parseBase64Binary(b64data)); | |
261 | ||
262 | int orientation; | |
263 | try { | |
264 | orientation = getExifTransorm(in); | |
265 | } catch (Exception e) { | |
266 | // no EXIF transform, ok | |
267 | orientation = -1; | |
268 | } | |
269 | ||
270 | in.reset(); | |
271 | BufferedImage image = ImageIO.read(in); | |
272 | ||
273 | // Note: this code has been found on internet; | |
274 | // thank you anonymous coder. | |
275 | int width = image.getWidth(); | |
276 | int height = image.getHeight(); | |
277 | AffineTransform affineTransform = new AffineTransform(); | |
278 | ||
279 | switch (orientation) { | |
280 | case 1: | |
281 | break; | |
282 | case 2: // Flip X | |
283 | affineTransform.scale(-1.0, 1.0); | |
284 | affineTransform.translate(-width, 0); | |
285 | break; | |
286 | case 3: // PI rotation | |
287 | affineTransform.translate(width, height); | |
288 | affineTransform.rotate(Math.PI); | |
289 | break; | |
290 | case 4: // Flip Y | |
291 | affineTransform.scale(1.0, -1.0); | |
292 | affineTransform.translate(0, -height); | |
293 | break; | |
294 | case 5: // - PI/2 and Flip X | |
295 | affineTransform.rotate(-Math.PI / 2); | |
296 | affineTransform.scale(-1.0, 1.0); | |
297 | break; | |
298 | case 6: // -PI/2 and -width | |
299 | affineTransform.translate(height, 0); | |
300 | affineTransform.rotate(Math.PI / 2); | |
301 | break; | |
302 | case 7: // PI/2 and Flip | |
303 | affineTransform.scale(-1.0, 1.0); | |
304 | affineTransform.translate(-height, 0); | |
305 | affineTransform.translate(0, width); | |
306 | affineTransform.rotate(3 * Math.PI / 2); | |
307 | break; | |
308 | case 8: // PI / 2 | |
309 | affineTransform.translate(0, width); | |
310 | affineTransform.rotate(3 * Math.PI / 2); | |
311 | break; | |
312 | default: | |
313 | affineTransform = null; | |
314 | break; | |
315 | } | |
316 | ||
317 | if (affineTransform != null) { | |
318 | AffineTransformOp affineTransformOp = new AffineTransformOp( | |
319 | affineTransform, AffineTransformOp.TYPE_BILINEAR); | |
320 | ||
321 | BufferedImage transformedImage = new BufferedImage(height, width, | |
322 | image.getType()); | |
323 | transformedImage = affineTransformOp | |
324 | .filter(image, transformedImage); | |
325 | ||
326 | image = transformedImage; | |
327 | } | |
328 | // | |
329 | ||
26d254a3 NR |
330 | return image; |
331 | } | |
332 | ||
cf77cb35 NR |
333 | /** |
334 | * Return a hash of the given {@link String}. | |
335 | * | |
336 | * @param input | |
337 | * the input data | |
338 | * | |
339 | * @return the hash | |
340 | */ | |
341 | static public String getHash(String input) { | |
342 | try { | |
343 | MessageDigest md = MessageDigest.getInstance("MD5"); | |
344 | md.update(input.getBytes()); | |
345 | byte byteData[] = md.digest(); | |
346 | ||
347 | StringBuffer hexString = new StringBuffer(); | |
348 | for (int i = 0; i < byteData.length; i++) { | |
349 | String hex = Integer.toHexString(0xff & byteData[i]); | |
350 | if (hex.length() == 1) | |
351 | hexString.append('0'); | |
352 | hexString.append(hex); | |
353 | } | |
354 | ||
355 | return hexString.toString(); | |
356 | } catch (NoSuchAlgorithmException e) { | |
357 | // all JVM most probably have an MD5 implementation, but even if | |
358 | // not, returning the input is "correct", if inefficient and | |
359 | // unsecure | |
360 | return input; | |
361 | } | |
362 | } | |
4d688b05 NR |
363 | |
364 | /** | |
365 | * Return the EXIF transformation flag of this image if any. | |
366 | * | |
367 | * <p> | |
368 | * Note: this code has been found on internet; thank you anonymous coder. | |
369 | * </p> | |
370 | * | |
371 | * @param in | |
372 | * the data {@link InputStream} | |
373 | * | |
374 | * @return the transformation flag if any | |
375 | * | |
376 | * @throws IOException | |
377 | * in case of IO error | |
378 | */ | |
379 | static private int getExifTransorm(InputStream in) throws IOException { | |
380 | int[] exif_data = new int[100]; | |
381 | int set_flag = 0; | |
382 | int is_motorola = 0; | |
383 | ||
384 | /* Read File head, check for JPEG SOI + Exif APP1 */ | |
385 | for (int i = 0; i < 4; i++) | |
386 | exif_data[i] = in.read(); | |
387 | ||
388 | if (exif_data[0] != 0xFF || exif_data[1] != 0xD8 | |
389 | || exif_data[2] != 0xFF || exif_data[3] != 0xE1) | |
390 | return -2; | |
391 | ||
392 | /* Get the marker parameter length count */ | |
393 | int length = (in.read() << 8 | in.read()); | |
394 | ||
395 | /* Length includes itself, so must be at least 2 */ | |
396 | /* Following Exif data length must be at least 6 */ | |
397 | if (length < 8) | |
398 | return -1; | |
399 | length -= 8; | |
400 | /* Read Exif head, check for "Exif" */ | |
401 | for (int i = 0; i < 6; i++) | |
402 | exif_data[i] = in.read(); | |
403 | ||
404 | if (exif_data[0] != 0x45 || exif_data[1] != 0x78 | |
405 | || exif_data[2] != 0x69 || exif_data[3] != 0x66 | |
406 | || exif_data[4] != 0 || exif_data[5] != 0) | |
407 | return -1; | |
408 | ||
409 | /* Read Exif body */ | |
410 | length = length > exif_data.length ? exif_data.length : length; | |
411 | for (int i = 0; i < length; i++) | |
412 | exif_data[i] = in.read(); | |
413 | ||
414 | if (length < 12) | |
415 | return -1; /* Length of an IFD entry */ | |
416 | ||
417 | /* Discover byte order */ | |
418 | if (exif_data[0] == 0x49 && exif_data[1] == 0x49) | |
419 | is_motorola = 0; | |
420 | else if (exif_data[0] == 0x4D && exif_data[1] == 0x4D) | |
421 | is_motorola = 1; | |
422 | else | |
423 | return -1; | |
424 | ||
425 | /* Check Tag Mark */ | |
426 | if (is_motorola == 1) { | |
427 | if (exif_data[2] != 0) | |
428 | return -1; | |
429 | if (exif_data[3] != 0x2A) | |
430 | return -1; | |
431 | } else { | |
432 | if (exif_data[3] != 0) | |
433 | return -1; | |
434 | if (exif_data[2] != 0x2A) | |
435 | return -1; | |
436 | } | |
437 | ||
438 | /* Get first IFD offset (offset to IFD0) */ | |
439 | int offset; | |
440 | if (is_motorola == 1) { | |
441 | if (exif_data[4] != 0) | |
442 | return -1; | |
443 | if (exif_data[5] != 0) | |
444 | return -1; | |
445 | offset = exif_data[6]; | |
446 | offset <<= 8; | |
447 | offset += exif_data[7]; | |
448 | } else { | |
449 | if (exif_data[7] != 0) | |
450 | return -1; | |
451 | if (exif_data[6] != 0) | |
452 | return -1; | |
453 | offset = exif_data[5]; | |
454 | offset <<= 8; | |
455 | offset += exif_data[4]; | |
456 | } | |
457 | if (offset > length - 2) | |
458 | return -1; /* check end of data segment */ | |
459 | ||
460 | /* Get the number of directory entries contained in this IFD */ | |
461 | int number_of_tags; | |
462 | if (is_motorola == 1) { | |
463 | number_of_tags = exif_data[offset]; | |
464 | number_of_tags <<= 8; | |
465 | number_of_tags += exif_data[offset + 1]; | |
466 | } else { | |
467 | number_of_tags = exif_data[offset + 1]; | |
468 | number_of_tags <<= 8; | |
469 | number_of_tags += exif_data[offset]; | |
470 | } | |
471 | if (number_of_tags == 0) | |
472 | return -1; | |
473 | offset += 2; | |
474 | ||
475 | /* Search for Orientation Tag in IFD0 */ | |
476 | for (;;) { | |
477 | if (offset > length - 12) | |
478 | return -1; /* check end of data segment */ | |
479 | /* Get Tag number */ | |
480 | int tagnum; | |
481 | if (is_motorola == 1) { | |
482 | tagnum = exif_data[offset]; | |
483 | tagnum <<= 8; | |
484 | tagnum += exif_data[offset + 1]; | |
485 | } else { | |
486 | tagnum = exif_data[offset + 1]; | |
487 | tagnum <<= 8; | |
488 | tagnum += exif_data[offset]; | |
489 | } | |
490 | if (tagnum == 0x0112) | |
491 | break; /* found Orientation Tag */ | |
492 | if (--number_of_tags == 0) | |
493 | return -1; | |
494 | offset += 12; | |
495 | } | |
496 | ||
497 | /* Get the Orientation value */ | |
498 | if (is_motorola == 1) { | |
499 | if (exif_data[offset + 8] != 0) | |
500 | return -1; | |
501 | set_flag = exif_data[offset + 9]; | |
502 | } else { | |
503 | if (exif_data[offset + 9] != 0) | |
504 | return -1; | |
505 | set_flag = exif_data[offset + 8]; | |
506 | } | |
507 | if (set_flag > 8) | |
508 | return -1; | |
509 | ||
510 | return set_flag; | |
511 | } | |
a3b510ab | 512 | } |