+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
/*
***************************************************************************
-* Copyright (C) 2008-2011, International Business Machines Corporation
+* Copyright (C) 2008-2015, International Business Machines Corporation
* and others. All Rights Reserved.
***************************************************************************
* file name: uspoof.cpp
-* encoding: US-ASCII
+* encoding: UTF-8
* tab size: 8 (not used)
* indentation:4
*
* Unicode Spoof Detection
*/
#include "unicode/utypes.h"
+#include "unicode/normalizer2.h"
#include "unicode/uspoof.h"
-#include "unicode/unorm.h"
#include "unicode/ustring.h"
#include "unicode/utf16.h"
#include "cmemory.h"
-#include "uspoof_impl.h"
+#include "cstring.h"
+#include "mutex.h"
+#include "scriptset.h"
#include "uassert.h"
+#include "ucln_in.h"
+#include "uspoof_impl.h"
+#include "umutex.h"
#if !UCONFIG_NO_NORMALIZATION
U_NAMESPACE_USE
+//
+// Static Objects used by the spoof impl, their thread safe initialization and their cleanup.
+//
+static UnicodeSet *gInclusionSet = NULL;
+static UnicodeSet *gRecommendedSet = NULL;
+static const Normalizer2 *gNfdNormalizer = NULL;
+static UInitOnce gSpoofInitStaticsOnce = U_INITONCE_INITIALIZER;
+
+namespace {
+
+UBool U_CALLCONV
+uspoof_cleanup(void) {
+ delete gInclusionSet;
+ gInclusionSet = NULL;
+ delete gRecommendedSet;
+ gRecommendedSet = NULL;
+ gNfdNormalizer = NULL;
+ gSpoofInitStaticsOnce.reset();
+ return TRUE;
+}
+
+void U_CALLCONV initializeStatics(UErrorCode &status) {
+ static const char16_t *inclusionPat =
+ u"['\\-.\\:\\u00B7\\u0375\\u058A\\u05F3\\u05F4\\u06FD\\u06FE\\u0F0B\\u200C"
+ u"\\u200D\\u2010\\u2019\\u2027\\u30A0\\u30FB]";
+ gInclusionSet = new UnicodeSet(UnicodeString(inclusionPat), status);
+ if (gInclusionSet == NULL) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return;
+ }
+ gInclusionSet->freeze();
+
+ // Note: data from IdentifierStatus.txt & IdentifierType.txt
+ // There is tooling to generate this constant in the unicodetools project:
+ // org.unicode.text.tools.RecommendedSetGenerator
+ // It will print the Java and C++ code to the console for easy copy-paste into this file.
+ static const char16_t *recommendedPat =
+ u"[0-9A-Z_a-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u0131\\u0134-\\u013E"
+ u"\\u0141-\\u0148\\u014A-\\u017E\\u018F\\u01A0\\u01A1\\u01AF\\u01B0\\u01CD-"
+ u"\\u01DC\\u01DE-\\u01E3\\u01E6-\\u01F0\\u01F4\\u01F5\\u01F8-\\u021B\\u021E"
+ u"\\u021F\\u0226-\\u0233\\u0259\\u02BB\\u02BC\\u02EC\\u0300-\\u0304\\u0306-"
+ u"\\u030C\\u030F-\\u0311\\u0313\\u0314\\u031B\\u0323-\\u0328\\u032D\\u032E"
+ u"\\u0330\\u0331\\u0335\\u0338\\u0339\\u0342\\u0345\\u037B-\\u037D\\u0386"
+ u"\\u0388-\\u038A\\u038C\\u038E-\\u03A1\\u03A3-\\u03CE\\u03FC-\\u045F\\u048A-"
+ u"\\u0529\\u052E\\u052F\\u0531-\\u0556\\u0559\\u0560-\\u0586\\u0588\\u05B4"
+ u"\\u05D0-\\u05EA\\u05EF-\\u05F2\\u0620-\\u063F\\u0641-\\u0655\\u0660-\\u0669"
+ u"\\u0670-\\u0672\\u0674\\u0679-\\u068D\\u068F-\\u06D3\\u06D5\\u06E5\\u06E6"
+ u"\\u06EE-\\u06FC\\u06FF\\u0750-\\u07B1\\u08A0-\\u08AC\\u08B2\\u08B6-\\u08BD"
+ u"\\u0901-\\u094D\\u094F\\u0950\\u0956\\u0957\\u0960-\\u0963\\u0966-\\u096F"
+ u"\\u0971-\\u0977\\u0979-\\u097F\\u0981-\\u0983\\u0985-\\u098C\\u098F\\u0990"
+ u"\\u0993-\\u09A8\\u09AA-\\u09B0\\u09B2\\u09B6-\\u09B9\\u09BC-\\u09C4\\u09C7"
+ u"\\u09C8\\u09CB-\\u09CE\\u09D7\\u09E0-\\u09E3\\u09E6-\\u09F1\\u09FC\\u09FE"
+ u"\\u0A01-\\u0A03\\u0A05-\\u0A0A\\u0A0F\\u0A10\\u0A13-\\u0A28\\u0A2A-\\u0A30"
+ u"\\u0A32\\u0A35\\u0A38\\u0A39\\u0A3C\\u0A3E-\\u0A42\\u0A47\\u0A48\\u0A4B-"
+ u"\\u0A4D\\u0A5C\\u0A66-\\u0A74\\u0A81-\\u0A83\\u0A85-\\u0A8D\\u0A8F-\\u0A91"
+ u"\\u0A93-\\u0AA8\\u0AAA-\\u0AB0\\u0AB2\\u0AB3\\u0AB5-\\u0AB9\\u0ABC-\\u0AC5"
+ u"\\u0AC7-\\u0AC9\\u0ACB-\\u0ACD\\u0AD0\\u0AE0-\\u0AE3\\u0AE6-\\u0AEF\\u0AFA-"
+ u"\\u0AFF\\u0B01-\\u0B03\\u0B05-\\u0B0C\\u0B0F\\u0B10\\u0B13-\\u0B28\\u0B2A-"
+ u"\\u0B30\\u0B32\\u0B33\\u0B35-\\u0B39\\u0B3C-\\u0B43\\u0B47\\u0B48\\u0B4B-"
+ u"\\u0B4D\\u0B56\\u0B57\\u0B5F-\\u0B61\\u0B66-\\u0B6F\\u0B71\\u0B82\\u0B83"
+ u"\\u0B85-\\u0B8A\\u0B8E-\\u0B90\\u0B92-\\u0B95\\u0B99\\u0B9A\\u0B9C\\u0B9E"
+ u"\\u0B9F\\u0BA3\\u0BA4\\u0BA8-\\u0BAA\\u0BAE-\\u0BB9\\u0BBE-\\u0BC2\\u0BC6-"
+ u"\\u0BC8\\u0BCA-\\u0BCD\\u0BD0\\u0BD7\\u0BE6-\\u0BEF\\u0C01-\\u0C0C\\u0C0E-"
+ u"\\u0C10\\u0C12-\\u0C28\\u0C2A-\\u0C33\\u0C35-\\u0C39\\u0C3D-\\u0C44\\u0C46-"
+ u"\\u0C48\\u0C4A-\\u0C4D\\u0C55\\u0C56\\u0C60\\u0C61\\u0C66-\\u0C6F\\u0C80"
+ u"\\u0C82\\u0C83\\u0C85-\\u0C8C\\u0C8E-\\u0C90\\u0C92-\\u0CA8\\u0CAA-\\u0CB3"
+ u"\\u0CB5-\\u0CB9\\u0CBC-\\u0CC4\\u0CC6-\\u0CC8\\u0CCA-\\u0CCD\\u0CD5\\u0CD6"
+ u"\\u0CE0-\\u0CE3\\u0CE6-\\u0CEF\\u0CF1\\u0CF2\\u0D00\\u0D02\\u0D03\\u0D05-"
+ u"\\u0D0C\\u0D0E-\\u0D10\\u0D12-\\u0D43\\u0D46-\\u0D48\\u0D4A-\\u0D4E\\u0D54-"
+ u"\\u0D57\\u0D60\\u0D61\\u0D66-\\u0D6F\\u0D7A-\\u0D7F\\u0D82\\u0D83\\u0D85-"
+ u"\\u0D8E\\u0D91-\\u0D96\\u0D9A-\\u0DA5\\u0DA7-\\u0DB1\\u0DB3-\\u0DBB\\u0DBD"
+ u"\\u0DC0-\\u0DC6\\u0DCA\\u0DCF-\\u0DD4\\u0DD6\\u0DD8-\\u0DDE\\u0DF2\\u0E01-"
+ u"\\u0E32\\u0E34-\\u0E3A\\u0E40-\\u0E4E\\u0E50-\\u0E59\\u0E81\\u0E82\\u0E84"
+ u"\\u0E86-\\u0E8A\\u0E8C-\\u0EA3\\u0EA5\\u0EA7-\\u0EB2\\u0EB4-\\u0EBD\\u0EC0-"
+ u"\\u0EC4\\u0EC6\\u0EC8-\\u0ECD\\u0ED0-\\u0ED9\\u0EDE\\u0EDF\\u0F00\\u0F20-"
+ u"\\u0F29\\u0F35\\u0F37\\u0F3E-\\u0F42\\u0F44-\\u0F47\\u0F49-\\u0F4C\\u0F4E-"
+ u"\\u0F51\\u0F53-\\u0F56\\u0F58-\\u0F5B\\u0F5D-\\u0F68\\u0F6A-\\u0F6C\\u0F71"
+ u"\\u0F72\\u0F74\\u0F7A-\\u0F80\\u0F82-\\u0F84\\u0F86-\\u0F92\\u0F94-\\u0F97"
+ u"\\u0F99-\\u0F9C\\u0F9E-\\u0FA1\\u0FA3-\\u0FA6\\u0FA8-\\u0FAB\\u0FAD-\\u0FB8"
+ u"\\u0FBA-\\u0FBC\\u0FC6\\u1000-\\u1049\\u1050-\\u109D\\u10C7\\u10CD\\u10D0-"
+ u"\\u10F0\\u10F7-\\u10FA\\u10FD-\\u10FF\\u1200-\\u1248\\u124A-\\u124D\\u1250-"
+ u"\\u1256\\u1258\\u125A-\\u125D\\u1260-\\u1288\\u128A-\\u128D\\u1290-\\u12B0"
+ u"\\u12B2-\\u12B5\\u12B8-\\u12BE\\u12C0\\u12C2-\\u12C5\\u12C8-\\u12D6\\u12D8-"
+ u"\\u1310\\u1312-\\u1315\\u1318-\\u135A\\u135D-\\u135F\\u1380-\\u138F\\u1780-"
+ u"\\u17A2\\u17A5-\\u17A7\\u17A9-\\u17B3\\u17B6-\\u17CA\\u17D2\\u17D7\\u17DC"
+ u"\\u17E0-\\u17E9\\u1C80-\\u1C88\\u1C90-\\u1CBA\\u1CBD-\\u1CBF\\u1E00-\\u1E99"
+ u"\\u1E9E\\u1EA0-\\u1EF9\\u1F00-\\u1F15\\u1F18-\\u1F1D\\u1F20-\\u1F45\\u1F48-"
+ u"\\u1F4D\\u1F50-\\u1F57\\u1F59\\u1F5B\\u1F5D\\u1F5F-\\u1F70\\u1F72\\u1F74"
+ u"\\u1F76\\u1F78\\u1F7A\\u1F7C\\u1F80-\\u1FB4\\u1FB6-\\u1FBA\\u1FBC\\u1FC2-"
+ u"\\u1FC4\\u1FC6-\\u1FC8\\u1FCA\\u1FCC\\u1FD0-\\u1FD2\\u1FD6-\\u1FDA\\u1FE0-"
+ u"\\u1FE2\\u1FE4-\\u1FEA\\u1FEC\\u1FF2-\\u1FF4\\u1FF6-\\u1FF8\\u1FFA\\u1FFC"
+ u"\\u2D27\\u2D2D\\u2D80-\\u2D96\\u2DA0-\\u2DA6\\u2DA8-\\u2DAE\\u2DB0-\\u2DB6"
+ u"\\u2DB8-\\u2DBE\\u2DC0-\\u2DC6\\u2DC8-\\u2DCE\\u2DD0-\\u2DD6\\u2DD8-\\u2DDE"
+ u"\\u3005-\\u3007\\u3041-\\u3096\\u3099\\u309A\\u309D\\u309E\\u30A1-\\u30FA"
+ u"\\u30FC-\\u30FE\\u3105-\\u312F\\u31A0-\\u31BA\\u3400-\\u4DB5\\u4E00-\\u9FEF"
+ u"\\uA660\\uA661\\uA674-\\uA67B\\uA67F\\uA69F\\uA717-\\uA71F\\uA788\\uA78D"
+ u"\\uA78E\\uA790-\\uA793\\uA7A0-\\uA7AA\\uA7AE\\uA7AF\\uA7B8-\\uA7BF\\uA7C2-"
+ u"\\uA7C6\\uA7FA\\uA9E7-\\uA9FE\\uAA60-\\uAA76\\uAA7A-\\uAA7F\\uAB01-\\uAB06"
+ u"\\uAB09-\\uAB0E\\uAB11-\\uAB16\\uAB20-\\uAB26\\uAB28-\\uAB2E\\uAB66\\uAB67"
+ u"\\uAC00-\\uD7A3\\uFA0E\\uFA0F\\uFA11\\uFA13\\uFA14\\uFA1F\\uFA21\\uFA23"
+ u"\\uFA24\\uFA27-\\uFA29\\U0001133B\\U0001B150-\\U0001B152\\U0001B164-"
+ u"\\U0001B167\\U00020000-\\U0002A6D6\\U0002A700-\\U0002B734\\U0002B740-"
+ u"\\U0002B81D\\U0002B820-\\U0002CEA1\\U0002CEB0-\\U0002EBE0]";
+
+ gRecommendedSet = new UnicodeSet(UnicodeString(recommendedPat), status);
+ if (gRecommendedSet == NULL) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ delete gInclusionSet;
+ return;
+ }
+ gRecommendedSet->freeze();
+ gNfdNormalizer = Normalizer2::getNFDInstance(status);
+ ucln_i18n_registerCleanup(UCLN_I18N_SPOOF, uspoof_cleanup);
+}
+
+} // namespace
+
+U_CFUNC void uspoof_internalInitStatics(UErrorCode *status) {
+ umtx_initOnce(gSpoofInitStaticsOnce, &initializeStatics, *status);
+}
+
U_CAPI USpoofChecker * U_EXPORT2
uspoof_open(UErrorCode *status) {
+ umtx_initOnce(gSpoofInitStaticsOnce, &initializeStatics, *status);
if (U_FAILURE(*status)) {
return NULL;
}
- SpoofImpl *si = new SpoofImpl(SpoofData::getDefault(*status), *status);
+ SpoofImpl *si = new SpoofImpl(*status);
+ if (si == NULL) {
+ *status = U_MEMORY_ALLOCATION_ERROR;
+ return NULL;
+ }
if (U_FAILURE(*status)) {
delete si;
- si = NULL;
+ return NULL;
}
- return (USpoofChecker *)si;
+ return si->asUSpoofChecker();
}
if (U_FAILURE(*status)) {
return NULL;
}
+
+ if (data == NULL) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR;
+ return NULL;
+ }
+
+ umtx_initOnce(gSpoofInitStaticsOnce, &initializeStatics, *status);
+ if (U_FAILURE(*status))
+ {
+ return NULL;
+ }
+
SpoofData *sd = new SpoofData(data, length, *status);
- SpoofImpl *si = new SpoofImpl(sd, *status);
+ if (sd == NULL) {
+ *status = U_MEMORY_ALLOCATION_ERROR;
+ return NULL;
+ }
+
if (U_FAILURE(*status)) {
delete sd;
- delete si;
return NULL;
}
- if (sd == NULL || si == NULL) {
+
+ SpoofImpl *si = new SpoofImpl(sd, *status);
+ if (si == NULL) {
*status = U_MEMORY_ALLOCATION_ERROR;
- delete sd;
- delete si;
+ delete sd; // explicit delete as the destructor for si won't be called.
return NULL;
}
-
+
+ if (U_FAILURE(*status)) {
+ delete si; // no delete for sd, as the si destructor will delete it.
+ return NULL;
+ }
+
if (pActualLength != NULL) {
- *pActualLength = sd->fRawData->fLength;
+ *pActualLength = sd->size();
}
- return reinterpret_cast<USpoofChecker *>(si);
+ return si->asUSpoofChecker();
}
return NULL;
}
SpoofImpl *result = new SpoofImpl(*src, *status); // copy constructor
+ if (result == NULL) {
+ *status = U_MEMORY_ALLOCATION_ERROR;
+ return NULL;
+ }
if (U_FAILURE(*status)) {
delete result;
result = NULL;
}
- return (USpoofChecker *)result;
+ return result->asUSpoofChecker();
}
// Verify that the requested checks are all ones (bits) that
// are acceptable, known values.
- if (checks & ~USPOOF_ALL_CHECKS) {
+ if (checks & ~(USPOOF_ALL_CHECKS | USPOOF_AUX_INFO)) {
*status = U_ILLEGAL_ARGUMENT_ERROR;
return;
}
return This->fChecks;
}
+U_CAPI void U_EXPORT2
+uspoof_setRestrictionLevel(USpoofChecker *sc, URestrictionLevel restrictionLevel) {
+ UErrorCode status = U_ZERO_ERROR;
+ SpoofImpl *This = SpoofImpl::validateThis(sc, status);
+ if (This != NULL) {
+ This->fRestrictionLevel = restrictionLevel;
+ This->fChecks |= USPOOF_RESTRICTION_LEVEL;
+ }
+}
+
+U_CAPI URestrictionLevel U_EXPORT2
+uspoof_getRestrictionLevel(const USpoofChecker *sc) {
+ UErrorCode status = U_ZERO_ERROR;
+ const SpoofImpl *This = SpoofImpl::validateThis(sc, status);
+ if (This == NULL) {
+ return USPOOF_UNRESTRICTIVE;
+ }
+ return This->fRestrictionLevel;
+}
+
U_CAPI void U_EXPORT2
uspoof_setAllowedLocales(USpoofChecker *sc, const char *localesList, UErrorCode *status) {
SpoofImpl *This = SpoofImpl::validateThis(sc, *status);
U_CAPI const USet * U_EXPORT2
uspoof_getAllowedChars(const USpoofChecker *sc, UErrorCode *status) {
const UnicodeSet *result = uspoof_getAllowedUnicodeSet(sc, status);
- return reinterpret_cast<const USet *>(result);
+ return result->toUSet();
}
U_CAPI const UnicodeSet * U_EXPORT2
U_CAPI void U_EXPORT2
uspoof_setAllowedChars(USpoofChecker *sc, const USet *chars, UErrorCode *status) {
- const UnicodeSet *set = reinterpret_cast<const UnicodeSet *>(chars);
+ const UnicodeSet *set = UnicodeSet::fromUSet(chars);
uspoof_setAllowedUnicodeSet(sc, set, status);
}
U_CAPI int32_t U_EXPORT2
uspoof_check(const USpoofChecker *sc,
- const UChar *text, int32_t length,
+ const UChar *id, int32_t length,
int32_t *position,
UErrorCode *status) {
-
+
+ // Backwards compatibility:
+ if (position != NULL) {
+ *position = 0;
+ }
+
+ // Delegate to uspoof_check2
+ return uspoof_check2(sc, id, length, NULL, status);
+}
+
+
+U_CAPI int32_t U_EXPORT2
+uspoof_check2(const USpoofChecker *sc,
+ const UChar* id, int32_t length,
+ USpoofCheckResult* checkResult,
+ UErrorCode *status) {
+
const SpoofImpl *This = SpoofImpl::validateThis(sc, *status);
if (This == NULL) {
return 0;
*status = U_ILLEGAL_ARGUMENT_ERROR;
return 0;
}
- if (length == -1) {
- // It's not worth the bother to handle nul terminated strings everywhere.
- // Just get the length and be done with it.
- length = u_strlen(text);
- }
-
- int32_t result = 0;
- int32_t failPos = 0x7fffffff; // TODO: do we have a #define for max int32?
-
- // A count of the number of non-Common or inherited scripts.
- // Needed for both the SINGLE_SCRIPT and the WHOLE/MIXED_SCIRPT_CONFUSABLE tests.
- // Share the computation when possible. scriptCount == -1 means that we haven't
- // done it yet.
- int32_t scriptCount = -1;
-
- if ((This->fChecks) & USPOOF_SINGLE_SCRIPT) {
- scriptCount = This->scriptScan(text, length, failPos, *status);
- // printf("scriptCount (clipped to 2) = %d\n", scriptCount);
- if ( scriptCount >= 2) {
- // Note: scriptCount == 2 covers all cases of the number of scripts >= 2
- result |= USPOOF_SINGLE_SCRIPT;
- }
- }
-
- if (This->fChecks & USPOOF_CHAR_LIMIT) {
- int32_t i;
- UChar32 c;
- for (i=0; i<length ;) {
- U16_NEXT(text, i, length, c);
- if (!This->fAllowedCharsSet->contains(c)) {
- result |= USPOOF_CHAR_LIMIT;
- if (i < failPos) {
- failPos = i;
- }
- break;
- }
- }
- }
-
- if (This->fChecks &
- (USPOOF_WHOLE_SCRIPT_CONFUSABLE | USPOOF_MIXED_SCRIPT_CONFUSABLE | USPOOF_INVISIBLE)) {
- // These are the checks that need to be done on NFD input
- NFDBuffer normalizedInput(text, length, *status);
- const UChar *nfdText = normalizedInput.getBuffer();
- int32_t nfdLength = normalizedInput.getLength();
-
- if (This->fChecks & USPOOF_INVISIBLE) {
-
- // scan for more than one occurence of the same non-spacing mark
- // in a sequence of non-spacing marks.
- int32_t i;
- UChar32 c;
- UChar32 firstNonspacingMark = 0;
- UBool haveMultipleMarks = FALSE;
- UnicodeSet marksSeenSoFar; // Set of combining marks in a single combining sequence.
-
- for (i=0; i<nfdLength ;) {
- U16_NEXT(nfdText, i, nfdLength, c);
- if (u_charType(c) != U_NON_SPACING_MARK) {
- firstNonspacingMark = 0;
- if (haveMultipleMarks) {
- marksSeenSoFar.clear();
- haveMultipleMarks = FALSE;
- }
- continue;
- }
- if (firstNonspacingMark == 0) {
- firstNonspacingMark = c;
- continue;
- }
- if (!haveMultipleMarks) {
- marksSeenSoFar.add(firstNonspacingMark);
- haveMultipleMarks = TRUE;
- }
- if (marksSeenSoFar.contains(c)) {
- // report the error, and stop scanning.
- // No need to find more than the first failure.
- result |= USPOOF_INVISIBLE;
- failPos = i;
- // TODO: Bug 8655: failPos is the position in the NFD buffer, but what we want
- // to give back to our caller is a position in the original input string.
- if (failPos > length) {
- failPos = length;
- }
- break;
- }
- marksSeenSoFar.add(c);
- }
- }
-
-
- if (This->fChecks & (USPOOF_WHOLE_SCRIPT_CONFUSABLE | USPOOF_MIXED_SCRIPT_CONFUSABLE)) {
- // The basic test is the same for both whole and mixed script confusables.
- // Compute the set of scripts that every input character has a confusable in.
- // For this computation an input character is always considered to be
- // confusable with itself in its own script.
- // If the number of such scripts is two or more, and the input consisted of
- // characters all from a single script, we have a whole script confusable.
- // (The two scripts will be the original script and the one that is confusable)
- // If the number of such scripts >= one, and the original input contained characters from
- // more than one script, we have a mixed script confusable. (We can transform
- // some of the characters, and end up with a visually similar string all in
- // one script.)
-
- if (scriptCount == -1) {
- int32_t t;
- scriptCount = This->scriptScan(text, length, t, *status);
- }
-
- ScriptSet scripts;
- This->wholeScriptCheck(nfdText, nfdLength, &scripts, *status);
- int32_t confusableScriptCount = scripts.countMembers();
- //printf("confusableScriptCount = %d\n", confusableScriptCount);
-
- if ((This->fChecks & USPOOF_WHOLE_SCRIPT_CONFUSABLE) &&
- confusableScriptCount >= 2 &&
- scriptCount == 1) {
- result |= USPOOF_WHOLE_SCRIPT_CONFUSABLE;
- }
-
- if ((This->fChecks & USPOOF_MIXED_SCRIPT_CONFUSABLE) &&
- confusableScriptCount >= 1 &&
- scriptCount > 1) {
- result |= USPOOF_MIXED_SCRIPT_CONFUSABLE;
- }
- }
- }
- if (position != NULL && failPos != 0x7fffffff) {
- *position = failPos;
- }
+ UnicodeString idStr((length == -1), id, length); // Aliasing constructor.
+ int32_t result = uspoof_check2UnicodeString(sc, idStr, checkResult, status);
return result;
}
U_CAPI int32_t U_EXPORT2
uspoof_checkUTF8(const USpoofChecker *sc,
- const char *text, int32_t length,
+ const char *id, int32_t length,
int32_t *position,
UErrorCode *status) {
- if (U_FAILURE(*status)) {
- return 0;
- }
- UChar stackBuf[USPOOF_STACK_BUFFER_SIZE];
- UChar* text16 = stackBuf;
- int32_t len16;
-
- u_strFromUTF8(text16, USPOOF_STACK_BUFFER_SIZE, &len16, text, length, status);
- if (U_FAILURE(*status) && *status != U_BUFFER_OVERFLOW_ERROR) {
- return 0;
- }
- if (*status == U_BUFFER_OVERFLOW_ERROR) {
- text16 = static_cast<UChar *>(uprv_malloc(len16 * sizeof(UChar) + 2));
- if (text16 == NULL) {
- *status = U_MEMORY_ALLOCATION_ERROR;
- return 0;
- }
- *status = U_ZERO_ERROR;
- u_strFromUTF8(text16, len16+1, NULL, text, length, status);
+ // Backwards compatibility:
+ if (position != NULL) {
+ *position = 0;
}
- int32_t position16 = -1;
- int32_t result = uspoof_check(sc, text16, len16, &position16, status);
+ // Delegate to uspoof_check2
+ return uspoof_check2UTF8(sc, id, length, NULL, status);
+}
+
+
+U_CAPI int32_t U_EXPORT2
+uspoof_check2UTF8(const USpoofChecker *sc,
+ const char *id, int32_t length,
+ USpoofCheckResult* checkResult,
+ UErrorCode *status) {
+
if (U_FAILURE(*status)) {
return 0;
}
+ UnicodeString idStr = UnicodeString::fromUTF8(StringPiece(id, length>=0 ? length : static_cast<int32_t>(uprv_strlen(id))));
+ int32_t result = uspoof_check2UnicodeString(sc, idStr, checkResult, status);
+ return result;
+}
- if (position16 > 0) {
- // Translate a UTF-16 based error position back to a UTF-8 offset.
- // u_strToUTF8() in preflight mode is an easy way to do it.
- U_ASSERT(position16 <= len16);
- u_strToUTF8(NULL, 0, position, text16, position16, status);
- if (position > 0) {
- // position is the required buffer length from u_strToUTF8, which includes
- // space for a terminating NULL, which we don't want, hence the -1.
- *position -= 1;
- }
- *status = U_ZERO_ERROR; // u_strToUTF8, above sets BUFFER_OVERFLOW_ERROR.
- }
- if (text16 != stackBuf) {
- uprv_free(text16);
+U_CAPI int32_t U_EXPORT2
+uspoof_areConfusable(const USpoofChecker *sc,
+ const UChar *id1, int32_t length1,
+ const UChar *id2, int32_t length2,
+ UErrorCode *status) {
+ SpoofImpl::validateThis(sc, *status);
+ if (U_FAILURE(*status)) {
+ return 0;
}
- return result;
-
+ if (length1 < -1 || length2 < -1) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR;
+ return 0;
+ }
+
+ UnicodeString id1Str((length1==-1), id1, length1); // Aliasing constructor
+ UnicodeString id2Str((length2==-1), id2, length2); // Aliasing constructor
+ return uspoof_areConfusableUnicodeString(sc, id1Str, id2Str, status);
}
-/* A convenience wrapper around the public uspoof_getSkeleton that handles
- * allocating a larger buffer than provided if the original is too small.
- */
-static UChar *getSkeleton(const USpoofChecker *sc, uint32_t type, const UChar *s, int32_t inputLength,
- UChar *dest, int32_t destCapacity, int32_t *outputLength, UErrorCode *status) {
- int32_t requiredCapacity = 0;
- UChar *buf = dest;
+U_CAPI int32_t U_EXPORT2
+uspoof_areConfusableUTF8(const USpoofChecker *sc,
+ const char *id1, int32_t length1,
+ const char *id2, int32_t length2,
+ UErrorCode *status) {
+ SpoofImpl::validateThis(sc, *status);
if (U_FAILURE(*status)) {
- return NULL;
+ return 0;
}
- requiredCapacity = uspoof_getSkeleton(sc, type, s, inputLength, dest, destCapacity, status);
- if (*status == U_BUFFER_OVERFLOW_ERROR) {
- buf = static_cast<UChar *>(uprv_malloc(requiredCapacity * sizeof(UChar)));
- if (buf == NULL) {
- *status = U_MEMORY_ALLOCATION_ERROR;
- return NULL;
- }
- *status = U_ZERO_ERROR;
- uspoof_getSkeleton(sc, type, s, inputLength, buf, requiredCapacity, status);
+ if (length1 < -1 || length2 < -1) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR;
+ return 0;
}
- *outputLength = requiredCapacity;
- return buf;
+ UnicodeString id1Str = UnicodeString::fromUTF8(StringPiece(id1, length1>=0? length1 : static_cast<int32_t>(uprv_strlen(id1))));
+ UnicodeString id2Str = UnicodeString::fromUTF8(StringPiece(id2, length2>=0? length2 : static_cast<int32_t>(uprv_strlen(id2))));
+ int32_t results = uspoof_areConfusableUnicodeString(sc, id1Str, id2Str, status);
+ return results;
}
-
+
U_CAPI int32_t U_EXPORT2
-uspoof_areConfusable(const USpoofChecker *sc,
- const UChar *s1, int32_t length1,
- const UChar *s2, int32_t length2,
- UErrorCode *status) {
+uspoof_areConfusableUnicodeString(const USpoofChecker *sc,
+ const icu::UnicodeString &id1,
+ const icu::UnicodeString &id2,
+ UErrorCode *status) {
const SpoofImpl *This = SpoofImpl::validateThis(sc, *status);
if (U_FAILURE(*status)) {
return 0;
}
- //
+ //
// See section 4 of UAX 39 for the algorithm for checking whether two strings are confusable,
// and for definitions of the types (single, whole, mixed-script) of confusables.
// If no tests relavant to this function have been specified, return an error.
// TODO: is this really the right thing to do? It's probably an error on the caller's part,
// but logically we would just return 0 (no error).
- if ((This->fChecks & (USPOOF_SINGLE_SCRIPT_CONFUSABLE | USPOOF_MIXED_SCRIPT_CONFUSABLE |
- USPOOF_WHOLE_SCRIPT_CONFUSABLE)) == 0) {
+ if ((This->fChecks & USPOOF_CONFUSABLE) == 0) {
*status = U_INVALID_STATE_ERROR;
return 0;
}
- int32_t flagsForSkeleton = This->fChecks & USPOOF_ANY_CASE;
- UChar s1SkeletonBuf[USPOOF_STACK_BUFFER_SIZE];
- UChar *s1Skeleton;
- int32_t s1SkeletonLength = 0;
-
- UChar s2SkeletonBuf[USPOOF_STACK_BUFFER_SIZE];
- UChar *s2Skeleton;
- int32_t s2SkeletonLength = 0;
-
- int32_t result = 0;
- int32_t t;
- int32_t s1ScriptCount = This->scriptScan(s1, length1, t, *status);
- int32_t s2ScriptCount = This->scriptScan(s2, length2, t, *status);
-
- if (This->fChecks & USPOOF_SINGLE_SCRIPT_CONFUSABLE) {
- // Do the Single Script compare.
- if (s1ScriptCount <= 1 && s2ScriptCount <= 1) {
- flagsForSkeleton |= USPOOF_SINGLE_SCRIPT_CONFUSABLE;
- s1Skeleton = getSkeleton(sc, flagsForSkeleton, s1, length1, s1SkeletonBuf,
- sizeof(s1SkeletonBuf)/sizeof(UChar), &s1SkeletonLength, status);
- s2Skeleton = getSkeleton(sc, flagsForSkeleton, s2, length2, s2SkeletonBuf,
- sizeof(s2SkeletonBuf)/sizeof(UChar), &s2SkeletonLength, status);
- if (s1SkeletonLength == s2SkeletonLength && u_strncmp(s1Skeleton, s2Skeleton, s1SkeletonLength) == 0) {
- result |= USPOOF_SINGLE_SCRIPT_CONFUSABLE;
- }
- if (s1Skeleton != s1SkeletonBuf) {
- uprv_free(s1Skeleton);
- }
- if (s2Skeleton != s2SkeletonBuf) {
- uprv_free(s2Skeleton);
- }
- }
- }
- if (result & USPOOF_SINGLE_SCRIPT_CONFUSABLE) {
- // If the two inputs are single script confusable they cannot also be
- // mixed or whole script confusable, according to the UAX39 definitions.
- // So we can skip those tests.
- return result;
+ // Compute the skeletons and check for confusability.
+ UnicodeString id1Skeleton;
+ uspoof_getSkeletonUnicodeString(sc, 0 /* deprecated */, id1, id1Skeleton, status);
+ UnicodeString id2Skeleton;
+ uspoof_getSkeletonUnicodeString(sc, 0 /* deprecated */, id2, id2Skeleton, status);
+ if (U_FAILURE(*status)) { return 0; }
+ if (id1Skeleton != id2Skeleton) {
+ return 0;
}
- // Optimization for whole script confusables test: two identifiers are whole script confusable if
- // each is of a single script and they are mixed script confusable.
- UBool possiblyWholeScriptConfusables =
- s1ScriptCount <= 1 && s2ScriptCount <= 1 && (This->fChecks & USPOOF_WHOLE_SCRIPT_CONFUSABLE);
+ // If we get here, the strings are confusable. Now we just need to set the flags for the appropriate classes
+ // of confusables according to UTS 39 section 4.
+ // Start by computing the resolved script sets of id1 and id2.
+ ScriptSet id1RSS;
+ This->getResolvedScriptSet(id1, id1RSS, *status);
+ ScriptSet id2RSS;
+ This->getResolvedScriptSet(id2, id2RSS, *status);
- //
- // Mixed Script Check
- //
- if ((This->fChecks & USPOOF_MIXED_SCRIPT_CONFUSABLE) || possiblyWholeScriptConfusables ) {
- // For getSkeleton(), resetting the USPOOF_SINGLE_SCRIPT_CONFUSABLE flag will get us
- // the mixed script table skeleton, which is what we want.
- // The Any Case / Lower Case bit in the skelton flags was set at the top of the function.
- flagsForSkeleton &= ~USPOOF_SINGLE_SCRIPT_CONFUSABLE;
- s1Skeleton = getSkeleton(sc, flagsForSkeleton, s1, length1, s1SkeletonBuf,
- sizeof(s1SkeletonBuf)/sizeof(UChar), &s1SkeletonLength, status);
- s2Skeleton = getSkeleton(sc, flagsForSkeleton, s2, length2, s2SkeletonBuf,
- sizeof(s2SkeletonBuf)/sizeof(UChar), &s2SkeletonLength, status);
- if (s1SkeletonLength == s2SkeletonLength && u_strncmp(s1Skeleton, s2Skeleton, s1SkeletonLength) == 0) {
- result |= USPOOF_MIXED_SCRIPT_CONFUSABLE;
- if (possiblyWholeScriptConfusables) {
- result |= USPOOF_WHOLE_SCRIPT_CONFUSABLE;
- }
- }
- if (s1Skeleton != s1SkeletonBuf) {
- uprv_free(s1Skeleton);
- }
- if (s2Skeleton != s2SkeletonBuf) {
- uprv_free(s2Skeleton);
+ // Turn on all applicable flags
+ int32_t result = 0;
+ if (id1RSS.intersects(id2RSS)) {
+ result |= USPOOF_SINGLE_SCRIPT_CONFUSABLE;
+ } else {
+ result |= USPOOF_MIXED_SCRIPT_CONFUSABLE;
+ if (!id1RSS.isEmpty() && !id2RSS.isEmpty()) {
+ result |= USPOOF_WHOLE_SCRIPT_CONFUSABLE;
}
}
+ // Turn off flags that the user doesn't want
+ if ((This->fChecks & USPOOF_SINGLE_SCRIPT_CONFUSABLE) == 0) {
+ result &= ~USPOOF_SINGLE_SCRIPT_CONFUSABLE;
+ }
+ if ((This->fChecks & USPOOF_MIXED_SCRIPT_CONFUSABLE) == 0) {
+ result &= ~USPOOF_MIXED_SCRIPT_CONFUSABLE;
+ }
+ if ((This->fChecks & USPOOF_WHOLE_SCRIPT_CONFUSABLE) == 0) {
+ result &= ~USPOOF_WHOLE_SCRIPT_CONFUSABLE;
+ }
+
return result;
}
-// Convenience function for converting a UTF-8 input to a UChar * string, including
-// reallocating a buffer when required. Parameters and their interpretation mostly
-// match u_strFromUTF8.
+U_CAPI int32_t U_EXPORT2
+uspoof_checkUnicodeString(const USpoofChecker *sc,
+ const icu::UnicodeString &id,
+ int32_t *position,
+ UErrorCode *status) {
-static UChar * convertFromUTF8(UChar *outBuf, int32_t outBufCapacity, int32_t *outputLength,
- const char *in, int32_t inLength, UErrorCode *status) {
- if (U_FAILURE(*status)) {
- return NULL;
- }
- UChar *dest = outBuf;
- u_strFromUTF8(dest, outBufCapacity, outputLength, in, inLength, status);
- if (*status == U_BUFFER_OVERFLOW_ERROR) {
- dest = static_cast<UChar *>(uprv_malloc(*outputLength * sizeof(UChar)));
- if (dest == NULL) {
- *status = U_MEMORY_ALLOCATION_ERROR;
- return NULL;
- }
- *status = U_ZERO_ERROR;
- u_strFromUTF8(dest, *outputLength, NULL, in, inLength, status);
+ // Backwards compatibility:
+ if (position != NULL) {
+ *position = 0;
}
- return dest;
+
+ // Delegate to uspoof_check2
+ return uspoof_check2UnicodeString(sc, id, NULL, status);
}
-
+namespace {
-U_CAPI int32_t U_EXPORT2
-uspoof_areConfusableUTF8(const USpoofChecker *sc,
- const char *s1, int32_t length1,
- const char *s2, int32_t length2,
- UErrorCode *status) {
+int32_t checkImpl(const SpoofImpl* This, const UnicodeString& id, CheckResult* checkResult, UErrorCode* status) {
+ U_ASSERT(This != NULL);
+ U_ASSERT(checkResult != NULL);
+ checkResult->clear();
+ int32_t result = 0;
- SpoofImpl::validateThis(sc, *status);
- if (U_FAILURE(*status)) {
- return 0;
+ if (0 != (This->fChecks & USPOOF_RESTRICTION_LEVEL)) {
+ URestrictionLevel idRestrictionLevel = This->getRestrictionLevel(id, *status);
+ if (idRestrictionLevel > This->fRestrictionLevel) {
+ result |= USPOOF_RESTRICTION_LEVEL;
+ }
+ checkResult->fRestrictionLevel = idRestrictionLevel;
}
- UChar s1Buf[USPOOF_STACK_BUFFER_SIZE];
- int32_t lengthS1U;
- UChar *s1U = convertFromUTF8(s1Buf, USPOOF_STACK_BUFFER_SIZE, &lengthS1U, s1, length1, status);
-
- UChar s2Buf[USPOOF_STACK_BUFFER_SIZE];
- int32_t lengthS2U;
- UChar *s2U = convertFromUTF8(s2Buf, USPOOF_STACK_BUFFER_SIZE, &lengthS2U, s2, length2, status);
-
- int32_t results = uspoof_areConfusable(sc, s1U, lengthS1U, s2U, lengthS2U, status);
-
- if (s1U != s1Buf) {
- uprv_free(s1U);
+ if (0 != (This->fChecks & USPOOF_MIXED_NUMBERS)) {
+ UnicodeSet numerics;
+ This->getNumerics(id, numerics, *status);
+ if (numerics.size() > 1) {
+ result |= USPOOF_MIXED_NUMBERS;
+ }
+ checkResult->fNumerics = numerics; // UnicodeSet::operator=
}
- if (s2U != s2Buf) {
- uprv_free(s2U);
+
+ if (0 != (This->fChecks & USPOOF_HIDDEN_OVERLAY)) {
+ int32_t index = This->findHiddenOverlay(id, *status);
+ if (index != -1) {
+ result |= USPOOF_HIDDEN_OVERLAY;
+ }
}
- return results;
-}
-
-U_CAPI int32_t U_EXPORT2
-uspoof_areConfusableUnicodeString(const USpoofChecker *sc,
- const icu::UnicodeString &s1,
- const icu::UnicodeString &s2,
- UErrorCode *status) {
- const UChar *u1 = s1.getBuffer();
- int32_t length1 = s1.length();
- const UChar *u2 = s2.getBuffer();
- int32_t length2 = s2.length();
+ if (0 != (This->fChecks & USPOOF_CHAR_LIMIT)) {
+ int32_t i;
+ UChar32 c;
+ int32_t length = id.length();
+ for (i=0; i<length ;) {
+ c = id.char32At(i);
+ i += U16_LENGTH(c);
+ if (!This->fAllowedCharsSet->contains(c)) {
+ result |= USPOOF_CHAR_LIMIT;
+ break;
+ }
+ }
+ }
- int32_t results = uspoof_areConfusable(sc, u1, length1, u2, length2, status);
- return results;
-}
+ if (0 != (This->fChecks & USPOOF_INVISIBLE)) {
+ // This check needs to be done on NFD input
+ UnicodeString nfdText;
+ gNfdNormalizer->normalize(id, nfdText, *status);
+ int32_t nfdLength = nfdText.length();
+ // scan for more than one occurence of the same non-spacing mark
+ // in a sequence of non-spacing marks.
+ int32_t i;
+ UChar32 c;
+ UChar32 firstNonspacingMark = 0;
+ UBool haveMultipleMarks = FALSE;
+ UnicodeSet marksSeenSoFar; // Set of combining marks in a single combining sequence.
+
+ for (i=0; i<nfdLength ;) {
+ c = nfdText.char32At(i);
+ i += U16_LENGTH(c);
+ if (u_charType(c) != U_NON_SPACING_MARK) {
+ firstNonspacingMark = 0;
+ if (haveMultipleMarks) {
+ marksSeenSoFar.clear();
+ haveMultipleMarks = FALSE;
+ }
+ continue;
+ }
+ if (firstNonspacingMark == 0) {
+ firstNonspacingMark = c;
+ continue;
+ }
+ if (!haveMultipleMarks) {
+ marksSeenSoFar.add(firstNonspacingMark);
+ haveMultipleMarks = TRUE;
+ }
+ if (marksSeenSoFar.contains(c)) {
+ // report the error, and stop scanning.
+ // No need to find more than the first failure.
+ result |= USPOOF_INVISIBLE;
+ break;
+ }
+ marksSeenSoFar.add(c);
+ }
+ }
+ checkResult->fChecks = result;
+ return checkResult->toCombinedBitmask(This->fChecks);
+}
+} // namespace
U_CAPI int32_t U_EXPORT2
-uspoof_checkUnicodeString(const USpoofChecker *sc,
- const icu::UnicodeString &text,
- int32_t *position,
+uspoof_check2UnicodeString(const USpoofChecker *sc,
+ const icu::UnicodeString &id,
+ USpoofCheckResult* checkResult,
UErrorCode *status) {
- int32_t result = uspoof_check(sc, text.getBuffer(), text.length(), position, status);
- return result;
+ const SpoofImpl *This = SpoofImpl::validateThis(sc, *status);
+ if (This == NULL) {
+ return FALSE;
+ }
+
+ if (checkResult != NULL) {
+ CheckResult* ThisCheckResult = CheckResult::validateThis(checkResult, *status);
+ if (ThisCheckResult == NULL) {
+ return FALSE;
+ }
+ return checkImpl(This, id, ThisCheckResult, status);
+ } else {
+ // Stack-allocate the checkResult since this method doesn't return it
+ CheckResult stackCheckResult;
+ return checkImpl(This, id, &stackCheckResult, status);
+ }
}
U_CAPI int32_t U_EXPORT2
uspoof_getSkeleton(const USpoofChecker *sc,
uint32_t type,
- const UChar *s, int32_t length,
+ const UChar *id, int32_t length,
UChar *dest, int32_t destCapacity,
UErrorCode *status) {
- // TODO: this function could be sped up a bit
- // Skip the input normalization when not needed, work from callers data.
- // Put the initial skeleton straight into the caller's destination buffer.
- // It probably won't need normalization.
- // But these would make the structure more complicated.
-
- const SpoofImpl *This = SpoofImpl::validateThis(sc, *status);
+ SpoofImpl::validateThis(sc, *status);
if (U_FAILURE(*status)) {
return 0;
}
- if (length<-1 || destCapacity<0 || (destCapacity==0 && dest!=NULL) ||
- (type & ~(USPOOF_SINGLE_SCRIPT_CONFUSABLE | USPOOF_ANY_CASE)) != 0) {
+ if (length<-1 || destCapacity<0 || (destCapacity==0 && dest!=NULL)) {
*status = U_ILLEGAL_ARGUMENT_ERROR;
return 0;
}
- int32_t tableMask = 0;
- switch (type) {
- case 0:
- tableMask = USPOOF_ML_TABLE_FLAG;
- break;
- case USPOOF_SINGLE_SCRIPT_CONFUSABLE:
- tableMask = USPOOF_SL_TABLE_FLAG;
- break;
- case USPOOF_ANY_CASE:
- tableMask = USPOOF_MA_TABLE_FLAG;
- break;
- case USPOOF_SINGLE_SCRIPT_CONFUSABLE | USPOOF_ANY_CASE:
- tableMask = USPOOF_SA_TABLE_FLAG;
- break;
- default:
- *status = U_ILLEGAL_ARGUMENT_ERROR;
- return 0;
- }
-
- // NFD transform of the user supplied input
-
- UChar nfdStackBuf[USPOOF_STACK_BUFFER_SIZE];
- UChar *nfdInput = nfdStackBuf;
- int32_t normalizedLen = unorm_normalize(
- s, length, UNORM_NFD, 0, nfdInput, USPOOF_STACK_BUFFER_SIZE, status);
- if (*status == U_BUFFER_OVERFLOW_ERROR) {
- nfdInput = (UChar *)uprv_malloc((normalizedLen+1)*sizeof(UChar));
- if (nfdInput == NULL) {
- *status = U_MEMORY_ALLOCATION_ERROR;
- return 0;
- }
- *status = U_ZERO_ERROR;
- normalizedLen = unorm_normalize(s, length, UNORM_NFD, 0,
- nfdInput, normalizedLen+1, status);
- }
- if (U_FAILURE(*status)) {
- if (nfdInput != nfdStackBuf) {
- uprv_free(nfdInput);
- }
- return 0;
- }
-
- // buffer to hold the Unicode defined skeleton mappings for a single code point
- UChar buf[USPOOF_MAX_SKELETON_EXPANSION];
-
- // Apply the skeleton mapping to the NFD normalized input string
- // Accumulate the skeleton, possibly unnormalized, in a UnicodeString.
- int32_t inputIndex = 0;
- UnicodeString skelStr;
- while (inputIndex < normalizedLen) {
- UChar32 c;
- U16_NEXT(nfdInput, inputIndex, normalizedLen, c);
- int32_t replaceLen = This->confusableLookup(c, tableMask, buf);
- skelStr.append(buf, replaceLen);
- }
-
- if (nfdInput != nfdStackBuf) {
- uprv_free(nfdInput);
- }
-
- const UChar *result = skelStr.getBuffer();
- int32_t resultLen = skelStr.length();
- UChar *normedResult = NULL;
-
- // Check the skeleton for NFD, normalize it if needed.
- // Unnormalized results should be very rare.
- if (!unorm_isNormalized(result, resultLen, UNORM_NFD, status)) {
- normalizedLen = unorm_normalize(result, resultLen, UNORM_NFD, 0, NULL, 0, status);
- normedResult = static_cast<UChar *>(uprv_malloc((normalizedLen+1)*sizeof(UChar)));
- if (normedResult == NULL) {
- *status = U_MEMORY_ALLOCATION_ERROR;
- return 0;
- }
- *status = U_ZERO_ERROR;
- unorm_normalize(result, resultLen, UNORM_NFD, 0, normedResult, normalizedLen+1, status);
- result = normedResult;
- resultLen = normalizedLen;
- }
-
- // Copy the skeleton to the caller's buffer
- if (U_SUCCESS(*status)) {
- if (destCapacity == 0 || resultLen > destCapacity) {
- *status = resultLen>destCapacity ? U_BUFFER_OVERFLOW_ERROR : U_STRING_NOT_TERMINATED_WARNING;
- } else {
- u_memcpy(dest, result, resultLen);
- if (destCapacity > resultLen) {
- dest[resultLen] = 0;
- } else {
- *status = U_STRING_NOT_TERMINATED_WARNING;
- }
- }
- }
- uprv_free(normedResult);
- return resultLen;
+ UnicodeString idStr((length==-1), id, length); // Aliasing constructor
+ UnicodeString destStr;
+ uspoof_getSkeletonUnicodeString(sc, type, idStr, destStr, status);
+ destStr.extract(dest, destCapacity, *status);
+ return destStr.length();
}
-U_CAPI UnicodeString & U_EXPORT2
+U_I18N_API UnicodeString & U_EXPORT2
uspoof_getSkeletonUnicodeString(const USpoofChecker *sc,
- uint32_t type,
- const UnicodeString &s,
+ uint32_t /*type*/,
+ const UnicodeString &id,
UnicodeString &dest,
UErrorCode *status) {
+ const SpoofImpl *This = SpoofImpl::validateThis(sc, *status);
if (U_FAILURE(*status)) {
return dest;
}
- dest.remove();
-
- const UChar *str = s.getBuffer();
- int32_t strLen = s.length();
- UChar smallBuf[USPOOF_STACK_BUFFER_SIZE];
- UChar *buf = smallBuf;
- int32_t outputSize = uspoof_getSkeleton(sc, type, str, strLen, smallBuf, USPOOF_STACK_BUFFER_SIZE, status);
- if (*status == U_BUFFER_OVERFLOW_ERROR) {
- buf = static_cast<UChar *>(uprv_malloc((outputSize+1)*sizeof(UChar)));
- if (buf == NULL) {
- *status = U_MEMORY_ALLOCATION_ERROR;
- return dest;
- }
- *status = U_ZERO_ERROR;
- uspoof_getSkeleton(sc, type, str, strLen, buf, outputSize+1, status);
- }
- if (U_SUCCESS(*status)) {
- dest.setTo(buf, outputSize);
- }
- if (buf != smallBuf) {
- uprv_free(buf);
+ UnicodeString nfdId;
+ gNfdNormalizer->normalize(id, nfdId, *status);
+
+ // Apply the skeleton mapping to the NFD normalized input string
+ // Accumulate the skeleton, possibly unnormalized, in a UnicodeString.
+ int32_t inputIndex = 0;
+ UnicodeString skelStr;
+ int32_t normalizedLen = nfdId.length();
+ for (inputIndex=0; inputIndex < normalizedLen; ) {
+ UChar32 c = nfdId.char32At(inputIndex);
+ inputIndex += U16_LENGTH(c);
+ This->fSpoofData->confusableLookup(c, skelStr);
}
+
+ gNfdNormalizer->normalize(skelStr, dest, *status);
return dest;
}
U_CAPI int32_t U_EXPORT2
uspoof_getSkeletonUTF8(const USpoofChecker *sc,
uint32_t type,
- const char *s, int32_t length,
+ const char *id, int32_t length,
char *dest, int32_t destCapacity,
UErrorCode *status) {
- // Lacking a UTF-8 normalization API, just converting the input to
- // UTF-16 seems as good an approach as any. In typical use, input will
- // be an identifier, which is to say not too long for stack buffers.
+ SpoofImpl::validateThis(sc, *status);
if (U_FAILURE(*status)) {
return 0;
}
- // Buffers for the UChar form of the input and skeleton strings.
- UChar smallInBuf[USPOOF_STACK_BUFFER_SIZE];
- UChar *inBuf = smallInBuf;
- UChar smallOutBuf[USPOOF_STACK_BUFFER_SIZE];
- UChar *outBuf = smallOutBuf;
-
- int32_t lengthInUChars = 0;
- int32_t skelLengthInUChars = 0;
- int32_t skelLengthInUTF8 = 0;
-
- u_strFromUTF8(inBuf, USPOOF_STACK_BUFFER_SIZE, &lengthInUChars,
- s, length, status);
- if (*status == U_BUFFER_OVERFLOW_ERROR) {
- inBuf = static_cast<UChar *>(uprv_malloc((lengthInUChars+1)*sizeof(UChar)));
- if (inBuf == NULL) {
- *status = U_MEMORY_ALLOCATION_ERROR;
- goto cleanup;
- }
- *status = U_ZERO_ERROR;
- u_strFromUTF8(inBuf, lengthInUChars+1, &lengthInUChars,
- s, length, status);
- }
-
- skelLengthInUChars = uspoof_getSkeleton(sc, type, inBuf, lengthInUChars,
- outBuf, USPOOF_STACK_BUFFER_SIZE, status);
- if (*status == U_BUFFER_OVERFLOW_ERROR) {
- outBuf = static_cast<UChar *>(uprv_malloc((skelLengthInUChars+1)*sizeof(UChar)));
- if (outBuf == NULL) {
- *status = U_MEMORY_ALLOCATION_ERROR;
- goto cleanup;
- }
- *status = U_ZERO_ERROR;
- skelLengthInUChars = uspoof_getSkeleton(sc, type, inBuf, lengthInUChars,
- outBuf, skelLengthInUChars+1, status);
+ if (length<-1 || destCapacity<0 || (destCapacity==0 && dest!=NULL)) {
+ *status = U_ILLEGAL_ARGUMENT_ERROR;
+ return 0;
}
- u_strToUTF8(dest, destCapacity, &skelLengthInUTF8,
- outBuf, skelLengthInUChars, status);
-
- cleanup:
- if (inBuf != smallInBuf) {
- uprv_free(inBuf);
- }
- if (outBuf != smallOutBuf) {
- uprv_free(outBuf);
+ UnicodeString srcStr = UnicodeString::fromUTF8(StringPiece(id, length>=0 ? length : static_cast<int32_t>(uprv_strlen(id))));
+ UnicodeString destStr;
+ uspoof_getSkeletonUnicodeString(sc, type, srcStr, destStr, status);
+ if (U_FAILURE(*status)) {
+ return 0;
}
- return skelLengthInUTF8;
+
+ int32_t lengthInUTF8 = 0;
+ u_strToUTF8(dest, destCapacity, &lengthInUTF8,
+ destStr.getBuffer(), destStr.length(), status);
+ return lengthInUTF8;
}
U_ASSERT(U_FAILURE(*status));
return 0;
}
- int32_t dataSize = This->fSpoofData->fRawData->fLength;
- if (capacity < dataSize) {
- *status = U_BUFFER_OVERFLOW_ERROR;
- return dataSize;
+
+ return This->fSpoofData->serialize(buf, capacity, *status);
+}
+
+U_CAPI const USet * U_EXPORT2
+uspoof_getInclusionSet(UErrorCode *status) {
+ umtx_initOnce(gSpoofInitStaticsOnce, &initializeStatics, *status);
+ return gInclusionSet->toUSet();
+}
+
+U_CAPI const USet * U_EXPORT2
+uspoof_getRecommendedSet(UErrorCode *status) {
+ umtx_initOnce(gSpoofInitStaticsOnce, &initializeStatics, *status);
+ return gRecommendedSet->toUSet();
+}
+
+U_I18N_API const UnicodeSet * U_EXPORT2
+uspoof_getInclusionUnicodeSet(UErrorCode *status) {
+ umtx_initOnce(gSpoofInitStaticsOnce, &initializeStatics, *status);
+ return gInclusionSet;
+}
+
+U_I18N_API const UnicodeSet * U_EXPORT2
+uspoof_getRecommendedUnicodeSet(UErrorCode *status) {
+ umtx_initOnce(gSpoofInitStaticsOnce, &initializeStatics, *status);
+ return gRecommendedSet;
+}
+
+//------------------
+// CheckResult APIs
+//------------------
+
+U_CAPI USpoofCheckResult* U_EXPORT2
+uspoof_openCheckResult(UErrorCode *status) {
+ CheckResult* checkResult = new CheckResult();
+ if (checkResult == NULL) {
+ *status = U_MEMORY_ALLOCATION_ERROR;
+ return NULL;
}
- uprv_memcpy(buf, This->fSpoofData->fRawData, dataSize);
- return dataSize;
+ return checkResult->asUSpoofCheckResult();
+}
+
+U_CAPI void U_EXPORT2
+uspoof_closeCheckResult(USpoofCheckResult* checkResult) {
+ UErrorCode status = U_ZERO_ERROR;
+ CheckResult* This = CheckResult::validateThis(checkResult, status);
+ delete This;
+}
+
+U_CAPI int32_t U_EXPORT2
+uspoof_getCheckResultChecks(const USpoofCheckResult *checkResult, UErrorCode *status) {
+ const CheckResult* This = CheckResult::validateThis(checkResult, *status);
+ if (U_FAILURE(*status)) { return 0; }
+ return This->fChecks;
+}
+
+U_CAPI URestrictionLevel U_EXPORT2
+uspoof_getCheckResultRestrictionLevel(const USpoofCheckResult *checkResult, UErrorCode *status) {
+ const CheckResult* This = CheckResult::validateThis(checkResult, *status);
+ if (U_FAILURE(*status)) { return USPOOF_UNRESTRICTIVE; }
+ return This->fRestrictionLevel;
}
-#endif
+U_CAPI const USet* U_EXPORT2
+uspoof_getCheckResultNumerics(const USpoofCheckResult *checkResult, UErrorCode *status) {
+ const CheckResult* This = CheckResult::validateThis(checkResult, *status);
+ if (U_FAILURE(*status)) { return NULL; }
+ return This->fNumerics.toUSet();
+}
+
+
+
+#endif // !UCONFIG_NO_NORMALIZATION
projects / apple / icu.git / blobdiff