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comparison: intl/icu/source/tools/toolutil/pkgitems.cpp

intl/icu/source/tools/toolutil/pkgitems.cpp

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1 /*
2 *******************************************************************************
3 *
4 * Copyright (C) 2003-2011, International Business Machines
5 * Corporation and others. All Rights Reserved.
6 *
7 *******************************************************************************
8 * file name: pkgitems.cpp
9 * encoding: US-ASCII
10 * tab size: 8 (not used)
11 * indentation:4
12 *
13 * created on: 2005sep18
14 * created by: Markus W. Scherer
15 *
16 * Companion file to package.cpp. Deals with details of ICU data item formats.
17 * Used for item dependencies.
18 * Contains adapted code from ucnv_bld.c (swapper code from 2003).
19 */
20
21 #include "unicode/utypes.h"
22 #include "unicode/ures.h"
23 #include "unicode/putil.h"
24 #include "unicode/udata.h"
25 #include "cstring.h"
26 #include "uinvchar.h"
27 #include "ucmndata.h"
28 #include "udataswp.h"
29 #include "swapimpl.h"
30 #include "toolutil.h"
31 #include "package.h"
32 #include "pkg_imp.h"
33
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <string.h>
37
38 /* item formats in common */
39
40 #include "uresdata.h"
41 #include "ucnv_bld.h"
42 #include "ucnv_io.h"
43
44 // general definitions ----------------------------------------------------- ***
45
46 #define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof((array)[0]))
47
48 U_CDECL_BEGIN
49
50 static void U_CALLCONV
51 printError(void *context, const char *fmt, va_list args) {
52 vfprintf((FILE *)context, fmt, args);
53 }
54
55 U_CDECL_END
56
57 // a data item in native-platform form ------------------------------------- ***
58
59 U_NAMESPACE_BEGIN
60
61 class NativeItem {
62 public:
63 NativeItem() : pItem(NULL), pInfo(NULL), bytes(NULL), swapped(NULL), length(0) {}
64 NativeItem(const Item *item, UDataSwapFn *swap) : swapped(NULL) {
65 setItem(item, swap);
66 }
67 ~NativeItem() {
68 delete [] swapped;
69 }
70 const UDataInfo *getDataInfo() const {
71 return pInfo;
72 }
73 const uint8_t *getBytes() const {
74 return bytes;
75 }
76 int32_t getLength() const {
77 return length;
78 }
79
80 void setItem(const Item *item, UDataSwapFn *swap) {
81 pItem=item;
82 int32_t infoLength, itemHeaderLength;
83 UErrorCode errorCode=U_ZERO_ERROR;
84 pInfo=::getDataInfo(pItem->data, pItem->length, infoLength, itemHeaderLength, &errorCode);
85 if(U_FAILURE(errorCode)) {
86 exit(errorCode); // should succeed because readFile() checks headers
87 }
88 length=pItem->length-itemHeaderLength;
89
90 if(pInfo->isBigEndian==U_IS_BIG_ENDIAN && pInfo->charsetFamily==U_CHARSET_FAMILY) {
91 bytes=pItem->data+itemHeaderLength;
92 } else {
93 UDataSwapper *ds=udata_openSwapper((UBool)pInfo->isBigEndian, pInfo->charsetFamily, U_IS_BIG_ENDIAN, U_CHARSET_FAMILY, &errorCode);
94 if(U_FAILURE(errorCode)) {
95 fprintf(stderr, "icupkg: udata_openSwapper(\"%s\") failed - %s\n",
96 pItem->name, u_errorName(errorCode));
97 exit(errorCode);
98 }
99
100 ds->printError=printError;
101 ds->printErrorContext=stderr;
102
103 swapped=new uint8_t[pItem->length];
104 if(swapped==NULL) {
105 fprintf(stderr, "icupkg: unable to allocate memory for swapping \"%s\"\n", pItem->name);
106 exit(U_MEMORY_ALLOCATION_ERROR);
107 }
108 swap(ds, pItem->data, pItem->length, swapped, &errorCode);
109 pInfo=::getDataInfo(swapped, pItem->length, infoLength, itemHeaderLength, &errorCode);
110 bytes=swapped+itemHeaderLength;
111 udata_closeSwapper(ds);
112 }
113 }
114
115 private:
116 const Item *pItem;
117 const UDataInfo *pInfo;
118 const uint8_t *bytes;
119 uint8_t *swapped;
120 int32_t length;
121 };
122
123 // check a dependency ------------------------------------------------------ ***
124
125 /*
126 * assemble the target item name from the source item name, an ID
127 * and a suffix
128 */
129 static void
130 makeTargetName(const char *itemName, const char *id, int32_t idLength, const char *suffix,
131 char *target, int32_t capacity,
132 UErrorCode *pErrorCode) {
133 const char *itemID;
134 int32_t treeLength, suffixLength, targetLength;
135
136 // get the item basename
137 itemID=strrchr(itemName, '/');
138 if(itemID!=NULL) {
139 ++itemID;
140 } else {
141 itemID=itemName;
142 }
143
144 // build the target string
145 treeLength=(int32_t)(itemID-itemName);
146 if(idLength<0) {
147 idLength=(int32_t)strlen(id);
148 }
149 suffixLength=(int32_t)strlen(suffix);
150 targetLength=treeLength+idLength+suffixLength;
151 if(targetLength>=capacity) {
152 fprintf(stderr, "icupkg/makeTargetName(%s) target item name length %ld too long\n",
153 itemName, (long)targetLength);
154 *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
155 return;
156 }
157
158 memcpy(target, itemName, treeLength);
159 memcpy(target+treeLength, id, idLength);
160 memcpy(target+treeLength+idLength, suffix, suffixLength+1); // +1 includes the terminating NUL
161 }
162
163 static void
164 checkIDSuffix(const char *itemName, const char *id, int32_t idLength, const char *suffix,
165 CheckDependency check, void *context,
166 UErrorCode *pErrorCode) {
167 char target[200];
168 makeTargetName(itemName, id, idLength, suffix, target, (int32_t)sizeof(target), pErrorCode);
169 if(U_SUCCESS(*pErrorCode)) {
170 check(context, itemName, target);
171 }
172 }
173
174 /* assemble the target item name from the item's parent item name */
175 static void
176 checkParent(const char *itemName, CheckDependency check, void *context,
177 UErrorCode *pErrorCode) {
178 const char *itemID, *parent, *parentLimit, *suffix;
179 int32_t parentLength;
180
181 // get the item basename
182 itemID=strrchr(itemName, '/');
183 if(itemID!=NULL) {
184 ++itemID;
185 } else {
186 itemID=itemName;
187 }
188
189 // get the item suffix
190 suffix=strrchr(itemID, '.');
191 if(suffix==NULL) {
192 // empty suffix, point to the end of the string
193 suffix=strrchr(itemID, 0);
194 }
195
196 // get the position of the last '_'
197 for(parentLimit=suffix; parentLimit>itemID && *--parentLimit!='_';) {}
198
199 if(parentLimit!=itemID) {
200 // get the parent item name by truncating the last part of this item's name */
201 parent=itemID;
202 parentLength=(int32_t)(parentLimit-itemID);
203 } else {
204 // no '_' in the item name: the parent is the root bundle
205 parent="root";
206 parentLength=4;
207 if((suffix-itemID)==parentLength && 0==memcmp(itemID, parent, parentLength)) {
208 // the item itself is "root", which does not depend on a parent
209 return;
210 }
211 }
212 checkIDSuffix(itemName, parent, parentLength, suffix, check, context, pErrorCode);
213 }
214
215 // get dependencies from resource bundles ---------------------------------- ***
216
217 static const UChar SLASH=0x2f;
218
219 /*
220 * Check for the alias from the string or alias resource res.
221 */
222 static void
223 checkAlias(const char *itemName,
224 Resource res, const UChar *alias, int32_t length, UBool useResSuffix,
225 CheckDependency check, void *context, UErrorCode *pErrorCode) {
226 int32_t i;
227
228 if(!uprv_isInvariantUString(alias, length)) {
229 fprintf(stderr, "icupkg/ures_enumDependencies(%s res=%08x) alias string contains non-invariant characters\n",
230 itemName, res);
231 *pErrorCode=U_INVALID_CHAR_FOUND;
232 return;
233 }
234
235 // extract the locale ID from alias strings like
236 // locale_ID/key1/key2/key3
237 // locale_ID
238
239 // search for the first slash
240 for(i=0; i<length && alias[i]!=SLASH; ++i) {}
241
242 if(res_getPublicType(res)==URES_ALIAS) {
243 // ignore aliases with an initial slash:
244 // /ICUDATA/... and /pkgname/... go to a different package
245 // /LOCALE/... are for dynamic sideways fallbacks and don't go to a fixed bundle
246 if(i==0) {
247 return; // initial slash ('/')
248 }
249
250 // ignore the intra-bundle path starting from the first slash ('/')
251 length=i;
252 } else /* URES_STRING */ {
253 // the whole string should only consist of a locale ID
254 if(i!=length) {
255 fprintf(stderr, "icupkg/ures_enumDependencies(%s res=%08x) %%ALIAS contains a '/'\n",
256 itemName, res);
257 *pErrorCode=U_UNSUPPORTED_ERROR;
258 return;
259 }
260 }
261
262 // convert the Unicode string to char *
263 char localeID[32];
264 if(length>=(int32_t)sizeof(localeID)) {
265 fprintf(stderr, "icupkg/ures_enumDependencies(%s res=%08x) alias locale ID length %ld too long\n",
266 itemName, res, (long)length);
267 *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
268 return;
269 }
270 u_UCharsToChars(alias, localeID, length);
271 localeID[length]=0;
272
273 checkIDSuffix(itemName, localeID, -1, (useResSuffix ? ".res" : ""), check, context, pErrorCode);
274 }
275
276 /*
277 * Enumerate one resource item and its children and extract dependencies from
278 * aliases.
279 */
280 static void
281 ures_enumDependencies(const char *itemName,
282 const ResourceData *pResData,
283 Resource res, const char *inKey, const char *parentKey, int32_t depth,
284 CheckDependency check, void *context,
285 Package *pkg,
286 UErrorCode *pErrorCode) {
287 switch(res_getPublicType(res)) {
288 case URES_STRING:
289 {
290 UBool useResSuffix = TRUE;
291 // Check for %%ALIAS
292 if(depth==1 && inKey!=NULL) {
293 if(0!=strcmp(inKey, "%%ALIAS")) {
294 break;
295 }
296 }
297 // Check for %%DEPENDENCY
298 else if(depth==2 && parentKey!=NULL) {
299 if(0!=strcmp(parentKey, "%%DEPENDENCY")) {
300 break;
301 }
302 useResSuffix = FALSE;
303 } else {
304 // we ignore all other strings
305 break;
306 }
307 int32_t length;
308 const UChar *alias=res_getString(pResData, res, &length);
309 checkAlias(itemName, res, alias, length, useResSuffix, check, context, pErrorCode);
310 }
311 break;
312 case URES_ALIAS:
313 {
314 int32_t length;
315 const UChar *alias=res_getAlias(pResData, res, &length);
316 checkAlias(itemName, res, alias, length, TRUE, check, context, pErrorCode);
317 }
318 break;
319 case URES_TABLE:
320 {
321 /* recurse */
322 int32_t count=res_countArrayItems(pResData, res);
323 for(int32_t i=0; i<count; ++i) {
324 const char *itemKey;
325 Resource item=res_getTableItemByIndex(pResData, res, i, &itemKey);
326 ures_enumDependencies(
327 itemName, pResData,
328 item, itemKey,
329 inKey, depth+1,
330 check, context,
331 pkg,
332 pErrorCode);
333 if(U_FAILURE(*pErrorCode)) {
334 fprintf(stderr, "icupkg/ures_enumDependencies(%s table res=%08x)[%d].recurse(%s: %08x) failed\n",
335 itemName, res, i, itemKey, item);
336 break;
337 }
338 }
339 }
340 break;
341 case URES_ARRAY:
342 {
343 /* recurse */
344 int32_t count=res_countArrayItems(pResData, res);
345 for(int32_t i=0; i<count; ++i) {
346 Resource item=res_getArrayItem(pResData, res, i);
347 ures_enumDependencies(
348 itemName, pResData,
349 item, NULL,
350 inKey, depth+1,
351 check, context,
352 pkg,
353 pErrorCode);
354 if(U_FAILURE(*pErrorCode)) {
355 fprintf(stderr, "icupkg/ures_enumDependencies(%s array res=%08x)[%d].recurse(%08x) failed\n",
356 itemName, res, i, item);
357 break;
358 }
359 }
360 }
361 break;
362 default:
363 break;
364 }
365 }
366
367 static void
368 ures_enumDependencies(const char *itemName, const UDataInfo *pInfo,
369 const uint8_t *inBytes, int32_t length,
370 CheckDependency check, void *context,
371 Package *pkg,
372 UErrorCode *pErrorCode) {
373 ResourceData resData;
374
375 res_read(&resData, pInfo, inBytes, length, pErrorCode);
376 if(U_FAILURE(*pErrorCode)) {
377 fprintf(stderr, "icupkg: .res format version %02x.%02x not supported, or bundle malformed\n",
378 pInfo->formatVersion[0], pInfo->formatVersion[1]);
379 exit(U_UNSUPPORTED_ERROR);
380 }
381
382 /*
383 * if the bundle attributes are present and the nofallback flag is not set,
384 * then add the parent bundle as a dependency
385 */
386 if(pInfo->formatVersion[0]>1 || (pInfo->formatVersion[0]==1 && pInfo->formatVersion[1]>=1)) {
387 if(!resData.noFallback) {
388 /* this bundle participates in locale fallback */
389 checkParent(itemName, check, context, pErrorCode);
390 }
391 }
392
393 icu::NativeItem nativePool;
394
395 if(resData.usesPoolBundle) {
396 char poolName[200];
397 makeTargetName(itemName, "pool", 4, ".res", poolName, (int32_t)sizeof(poolName), pErrorCode);
398 if(U_FAILURE(*pErrorCode)) {
399 return;
400 }
401 check(context, itemName, poolName);
402 int32_t index=pkg->findItem(poolName);
403 if(index<0) {
404 // We cannot work with a bundle if its pool resource is missing.
405 // check() already printed a complaint.
406 return;
407 }
408 // TODO: Cache the native version in the Item itself.
409 nativePool.setItem(pkg->getItem(index), ures_swap);
410 const UDataInfo *poolInfo=nativePool.getDataInfo();
411 if(poolInfo->formatVersion[0]<=1) {
412 fprintf(stderr, "icupkg: %s is not a pool bundle\n", poolName);
413 return;
414 }
415 const int32_t *poolIndexes=(const int32_t *)nativePool.getBytes()+1;
416 int32_t poolIndexLength=poolIndexes[URES_INDEX_LENGTH]&0xff;
417 if(!(poolIndexLength>URES_INDEX_POOL_CHECKSUM &&
418 (poolIndexes[URES_INDEX_ATTRIBUTES]&URES_ATT_IS_POOL_BUNDLE))
419 ) {
420 fprintf(stderr, "icupkg: %s is not a pool bundle\n", poolName);
421 return;
422 }
423 if(resData.pRoot[1+URES_INDEX_POOL_CHECKSUM]==poolIndexes[URES_INDEX_POOL_CHECKSUM]) {
424 resData.poolBundleKeys=(const char *)(poolIndexes+poolIndexLength);
425 } else {
426 fprintf(stderr, "icupkg: %s has mismatched checksum for %s\n", poolName, itemName);
427 return;
428 }
429 }
430
431 ures_enumDependencies(
432 itemName, &resData,
433 resData.rootRes, NULL, NULL, 0,
434 check, context,
435 pkg,
436 pErrorCode);
437 }
438
439 // get dependencies from conversion tables --------------------------------- ***
440
441 /* code adapted from ucnv_swap() */
442 static void
443 ucnv_enumDependencies(const UDataSwapper *ds,
444 const char *itemName, const UDataInfo *pInfo,
445 const uint8_t *inBytes, int32_t length,
446 CheckDependency check, void *context,
447 UErrorCode *pErrorCode) {
448 uint32_t staticDataSize;
449
450 const UConverterStaticData *inStaticData;
451
452 const _MBCSHeader *inMBCSHeader;
453 uint8_t outputType;
454
455 /* check format version */
456 if(!(
457 pInfo->formatVersion[0]==6 &&
458 pInfo->formatVersion[1]>=2
459 )) {
460 fprintf(stderr, "icupkg/ucnv_enumDependencies(): .cnv format version %02x.%02x not supported\n",
461 pInfo->formatVersion[0], pInfo->formatVersion[1]);
462 exit(U_UNSUPPORTED_ERROR);
463 }
464
465 /* read the initial UConverterStaticData structure after the UDataInfo header */
466 inStaticData=(const UConverterStaticData *)inBytes;
467
468 if( length<(int32_t)sizeof(UConverterStaticData) ||
469 (uint32_t)length<(staticDataSize=ds->readUInt32(inStaticData->structSize))
470 ) {
471 udata_printError(ds, "icupkg/ucnv_enumDependencies(): too few bytes (%d after header) for an ICU .cnv conversion table\n",
472 length);
473 *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
474 return;
475 }
476
477 inBytes+=staticDataSize;
478 length-=(int32_t)staticDataSize;
479
480 /* check for supported conversionType values */
481 if(inStaticData->conversionType==UCNV_MBCS) {
482 /* MBCS data */
483 uint32_t mbcsHeaderLength, mbcsHeaderFlags, mbcsHeaderOptions;
484 int32_t extOffset;
485
486 inMBCSHeader=(const _MBCSHeader *)inBytes;
487
488 if(length<(int32_t)sizeof(_MBCSHeader)) {
489 udata_printError(ds, "icupkg/ucnv_enumDependencies(): too few bytes (%d after headers) for an ICU MBCS .cnv conversion table\n",
490 length);
491 *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
492 return;
493 }
494 if(inMBCSHeader->version[0]==4 && inMBCSHeader->version[1]>=1) {
495 mbcsHeaderLength=MBCS_HEADER_V4_LENGTH;
496 } else if(inMBCSHeader->version[0]==5 && inMBCSHeader->version[1]>=3 &&
497 ((mbcsHeaderOptions=ds->readUInt32(inMBCSHeader->options))&
498 MBCS_OPT_UNKNOWN_INCOMPATIBLE_MASK)==0
499 ) {
500 mbcsHeaderLength=mbcsHeaderOptions&MBCS_OPT_LENGTH_MASK;
501 } else {
502 udata_printError(ds, "icupkg/ucnv_enumDependencies(): unsupported _MBCSHeader.version %d.%d\n",
503 inMBCSHeader->version[0], inMBCSHeader->version[1]);
504 *pErrorCode=U_UNSUPPORTED_ERROR;
505 return;
506 }
507
508 mbcsHeaderFlags=ds->readUInt32(inMBCSHeader->flags);
509 extOffset=(int32_t)(mbcsHeaderFlags>>8);
510 outputType=(uint8_t)mbcsHeaderFlags;
511
512 if(outputType==MBCS_OUTPUT_EXT_ONLY) {
513 /*
514 * extension-only file,
515 * contains a base name instead of normal base table data
516 */
517 char baseName[32];
518 int32_t baseNameLength;
519
520 /* there is extension data after the base data, see ucnv_ext.h */
521 if(length<(extOffset+UCNV_EXT_INDEXES_MIN_LENGTH*4)) {
522 udata_printError(ds, "icupkg/ucnv_enumDependencies(): too few bytes (%d after headers) for an ICU MBCS .cnv conversion table with extension data\n",
523 length);
524 *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
525 return;
526 }
527
528 /* swap the base name, between the header and the extension data */
529 const char *inBaseName=(const char *)inBytes+mbcsHeaderLength*4;
530 baseNameLength=(int32_t)strlen(inBaseName);
531 if(baseNameLength>=(int32_t)sizeof(baseName)) {
532 udata_printError(ds, "icupkg/ucnv_enumDependencies(%s): base name length %ld too long\n",
533 itemName, baseNameLength);
534 *pErrorCode=U_UNSUPPORTED_ERROR;
535 return;
536 }
537 ds->swapInvChars(ds, inBaseName, baseNameLength+1, baseName, pErrorCode);
538
539 checkIDSuffix(itemName, baseName, -1, ".cnv", check, context, pErrorCode);
540 }
541 }
542 }
543
544 // ICU data formats -------------------------------------------------------- ***
545
546 static const struct {
547 uint8_t dataFormat[4];
548 } dataFormats[]={
549 { { 0x52, 0x65, 0x73, 0x42 } }, /* dataFormat="ResB" */
550 { { 0x63, 0x6e, 0x76, 0x74 } }, /* dataFormat="cnvt" */
551 { { 0x43, 0x76, 0x41, 0x6c } } /* dataFormat="CvAl" */
552 };
553
554 enum {
555 FMT_RES,
556 FMT_CNV,
557 FMT_ALIAS,
558 FMT_COUNT
559 };
560
561 static int32_t
562 getDataFormat(const uint8_t dataFormat[4]) {
563 int32_t i;
564
565 for(i=0; i<FMT_COUNT; ++i) {
566 if(0==memcmp(dataFormats[i].dataFormat, dataFormat, 4)) {
567 return i;
568 }
569 }
570 return -1;
571 }
572
573 // enumerate dependencies of a package item -------------------------------- ***
574
575 void
576 Package::enumDependencies(Item *pItem, void *context, CheckDependency check) {
577 int32_t infoLength, itemHeaderLength;
578 UErrorCode errorCode=U_ZERO_ERROR;
579 const UDataInfo *pInfo=getDataInfo(pItem->data, pItem->length, infoLength, itemHeaderLength, &errorCode);
580 if(U_FAILURE(errorCode)) {
581 return; // should not occur because readFile() checks headers
582 }
583
584 // find the data format and call the corresponding function, if any
585 int32_t format=getDataFormat(pInfo->dataFormat);
586 if(format>=0) {
587 switch(format) {
588 case FMT_RES:
589 {
590 /*
591 * Swap the resource bundle (if necessary) so that we can use
592 * the normal runtime uresdata.c code to read it.
593 * We do not want to duplicate that code, especially not together with on-the-fly swapping.
594 */
595 NativeItem nrb(pItem, ures_swap);
596 ures_enumDependencies(pItem->name, nrb.getDataInfo(), nrb.getBytes(), nrb.getLength(), check, context, this, &errorCode);
597 break;
598 }
599 case FMT_CNV:
600 {
601 // TODO: share/cache swappers
602 UDataSwapper *ds=udata_openSwapper(
603 (UBool)pInfo->isBigEndian, pInfo->charsetFamily,
604 U_IS_BIG_ENDIAN, U_CHARSET_FAMILY,
605 &errorCode);
606 if(U_FAILURE(errorCode)) {
607 fprintf(stderr, "icupkg: udata_openSwapper(\"%s\") failed - %s\n",
608 pItem->name, u_errorName(errorCode));
609 exit(errorCode);
610 }
611
612 ds->printError=printError;
613 ds->printErrorContext=stderr;
614
615 const uint8_t *inBytes=pItem->data+itemHeaderLength;
616 int32_t length=pItem->length-itemHeaderLength;
617
618 ucnv_enumDependencies(ds, pItem->name, pInfo, inBytes, length, check, context, &errorCode);
619 udata_closeSwapper(ds);
620 break;
621 }
622 default:
623 break;
624 }
625
626 if(U_FAILURE(errorCode)) {
627 exit(errorCode);
628 }
629 }
630 }
631
632 U_NAMESPACE_END

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