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Unified Diff: Source/WebCore/platform/mac/WebCoreNSURLExtras.mm

Issue 13713003: Remove all of WebCore/platform/mac which is not mentioned in WebCore.gypi. (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Added back a couple needed headers Created 7 years, 8 months ago
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Index: Source/WebCore/platform/mac/WebCoreNSURLExtras.mm
diff --git a/Source/WebCore/platform/mac/WebCoreNSURLExtras.mm b/Source/WebCore/platform/mac/WebCoreNSURLExtras.mm
deleted file mode 100644
index 4612633fbd91774daf7579902d8a256d1968ee1d..0000000000000000000000000000000000000000
--- a/Source/WebCore/platform/mac/WebCoreNSURLExtras.mm
+++ /dev/null
@@ -1,886 +0,0 @@
-/*
- * Copyright (C) 2005, 2007 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
- * its contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#import "config.h"
-#import "WebCoreObjCExtras.h"
-#import "WebCoreNSStringExtras.h"
-#import "WebCoreNSURLExtras.h"
-#import "WebCoreSystemInterface.h"
-#import <wtf/RetainPtr.h>
-#import <wtf/Vector.h>
-#import <unicode/uchar.h>
-#import <unicode/uidna.h>
-#import <unicode/uscript.h>
-
-// Needs to be big enough to hold an IDN-encoded name.
-// For host names bigger than this, we won't do IDN encoding, which is almost certainly OK.
-#define HOST_NAME_BUFFER_LENGTH 2048
-#define URL_BYTES_BUFFER_LENGTH 2048
-
-typedef void (* StringRangeApplierFunction)(NSString *string, NSRange range, void *context);
-
-static pthread_once_t IDNScriptWhiteListFileRead = PTHREAD_ONCE_INIT;
-static uint32_t IDNScriptWhiteList[(USCRIPT_CODE_LIMIT + 31) / 32];
-
-namespace WebCore {
-
-static inline BOOL isLookalikeCharacter(int charCode)
-{
- // This function treats the following as unsafe, lookalike characters:
- // any non-printable character, any character considered as whitespace that isn't already converted to a space by ICU,
- // any ignorable character, and emoji characters related to locks.
-
- // We also considered the characters in Mozilla's blacklist (http://kb.mozillazine.org/Network.IDN.blacklist_chars),
- // and included all of these characters that ICU can encode.
-
- if (!u_isprint(charCode) || u_isUWhiteSpace(charCode) || u_hasBinaryProperty(charCode, UCHAR_DEFAULT_IGNORABLE_CODE_POINT))
- return YES;
-
- switch (charCode) {
- case 0x00ED: /* LATIN SMALL LETTER I WITH ACUTE */
- case 0x01C3: /* LATIN LETTER RETROFLEX CLICK */
- case 0x0251: /* LATIN SMALL LETTER ALPHA */
- case 0x0261: /* LATIN SMALL LETTER SCRIPT G */
- case 0x0335: /* COMBINING SHORT STROKE OVERLAY */
- case 0x0337: /* COMBINING SHORT SOLIDUS OVERLAY */
- case 0x0338: /* COMBINING LONG SOLIDUS OVERLAY */
- case 0x05B4: /* HEBREW POINT HIRIQ */
- case 0x05BC: /* HEBREW POINT DAGESH OR MAPIQ */
- case 0x05C3: /* HEBREW PUNCTUATION SOF PASUQ */
- case 0x05F4: /* HEBREW PUNCTUATION GERSHAYIM */
- case 0x0660: /* ARABIC INDIC DIGIT ZERO */
- case 0x06D4: /* ARABIC FULL STOP */
- case 0x06F0: /* EXTENDED ARABIC INDIC DIGIT ZERO */
- case 0x2027: /* HYPHENATION POINT */
- case 0x2039: /* SINGLE LEFT-POINTING ANGLE QUOTATION MARK */
- case 0x203A: /* SINGLE RIGHT-POINTING ANGLE QUOTATION MARK */
- case 0x2044: /* FRACTION SLASH */
- case 0x2215: /* DIVISION SLASH */
- case 0x2216: /* SET MINUS */
- case 0x233F: /* APL FUNCTIONAL SYMBOL SLASH BAR */
- case 0x23AE: /* INTEGRAL EXTENSION */
- case 0x244A: /* OCR DOUBLE BACKSLASH */
- case 0x2571: /* BOX DRAWINGS LIGHT DIAGONAL UPPER RIGHT TO LOWER LEFT */
- case 0x2572: /* BOX DRAWINGS LIGHT DIAGONAL UPPER LEFT TO LOWER RIGHT */
- case 0x29F8: /* BIG SOLIDUS */
- case 0x29f6: /* SOLIDUS WITH OVERBAR */
- case 0x2AFB: /* TRIPLE SOLIDUS BINARY RELATION */
- case 0x2AFD: /* DOUBLE SOLIDUS OPERATOR */
- case 0x3008: /* LEFT ANGLE BRACKET */
- case 0x3014: /* LEFT TORTOISE SHELL BRACKET */
- case 0x3015: /* RIGHT TORTOISE SHELL BRACKET */
- case 0x3033: /* VERTICAL KANA REPEAT MARK UPPER HALF */
- case 0x3035: /* VERTICAL KANA REPEAT MARK LOWER HALF */
- case 0x321D: /* PARENTHESIZED KOREAN CHARACTER OJEON */
- case 0x321E: /* PARENTHESIZED KOREAN CHARACTER O HU */
- case 0x33DF: /* SQUARE A OVER M */
- case 0xFE14: /* PRESENTATION FORM FOR VERTICAL SEMICOLON */
- case 0xFE15: /* PRESENTATION FORM FOR VERTICAL EXCLAMATION MARK */
- case 0xFE3F: /* PRESENTATION FORM FOR VERTICAL LEFT ANGLE BRACKET */
- case 0xFE5D: /* SMALL LEFT TORTOISE SHELL BRACKET */
- case 0xFE5E: /* SMALL RIGHT TORTOISE SHELL BRACKET */
- case 0x1F50F: /* LOCK WITH INK PEN */
- case 0x1F510: /* CLOSED LOCK WITH KEY */
- case 0x1F511: /* KEY */
- case 0x1F512: /* LOCK */
- case 0x1F513: /* OPEN LOCK */
- return YES;
- default:
- return NO;
- }
-}
-
-static BOOL readIDNScriptWhiteListFile(NSString *filename)
-{
- if (!filename)
- return NO;
-
- FILE *file = fopen([filename fileSystemRepresentation], "r");
- if (!file)
- return NO;
-
- // Read a word at a time.
- // Allow comments, starting with # character to the end of the line.
- while (1) {
- // Skip a comment if present.
- if (fscanf(file, " #%*[^\n\r]%*[\n\r]") == EOF)
- break;
-
- // Read a script name if present.
- char word[33];
- int result = fscanf(file, " %32[^# \t\n\r]%*[^# \t\n\r] ", word);
- if (result == EOF)
- break;
-
- if (result == 1) {
- // Got a word, map to script code and put it into the array.
- int32_t script = u_getPropertyValueEnum(UCHAR_SCRIPT, word);
- if (script >= 0 && script < USCRIPT_CODE_LIMIT) {
- size_t index = script / 32;
- uint32_t mask = 1 << (script % 32);
- IDNScriptWhiteList[index] |= mask;
- }
- }
- }
- fclose(file);
- return YES;
-}
-
-static void readIDNScriptWhiteList(void)
-{
- // Read white list from library.
- NSArray *dirs = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSAllDomainsMask, YES);
- int numDirs = [dirs count];
- for (int i = 0; i < numDirs; i++) {
- if (readIDNScriptWhiteListFile([[dirs objectAtIndex:i] stringByAppendingPathComponent:@"IDNScriptWhiteList.txt"]))
- return;
- }
-
- // Fall back on white list inside bundle.
- NSBundle *bundle = [NSBundle bundleWithIdentifier:@"com.apple.WebKit"];
-
- if (!readIDNScriptWhiteListFile([bundle pathForResource:@"IDNScriptWhiteList" ofType:@"txt"]))
- CRASH();
-}
-
-static BOOL allCharactersInIDNScriptWhiteList(const UChar *buffer, int32_t length)
-{
- pthread_once(&IDNScriptWhiteListFileRead, readIDNScriptWhiteList);
-
- int32_t i = 0;
- while (i < length) {
- UChar32 c;
- U16_NEXT(buffer, i, length, c)
- UErrorCode error = U_ZERO_ERROR;
- UScriptCode script = uscript_getScript(c, &error);
- if (error != U_ZERO_ERROR) {
- LOG_ERROR("got ICU error while trying to look at scripts: %d", error);
- return NO;
- }
- if (script < 0) {
- LOG_ERROR("got negative number for script code from ICU: %d", script);
- return NO;
- }
- if (script >= USCRIPT_CODE_LIMIT)
- return NO;
-
- size_t index = script / 32;
- uint32_t mask = 1 << (script % 32);
- if (!(IDNScriptWhiteList[index] & mask))
- return NO;
-
- if (isLookalikeCharacter(c))
- return NO;
- }
- return YES;
-}
-
-static BOOL allCharactersAllowedByTLDRules(const UChar* buffer, int32_t length)
-{
- // Skip trailing dot for root domain.
- if (buffer[length - 1] == '.')
- length--;
-
- if (length > 3 && buffer[length - 3] == '.'
- && buffer[length - 2] == 0x0440 // CYRILLIC SMALL LETTER ER
- && buffer[length - 1] == 0x0444) // CYRILLIC SMALL LETTER EF
- {
- // Rules defined by <http://www.cctld.ru/ru/docs/rulesrf.php>. This code only checks requirements that matter for presentation purposes.
- for (int32_t i = length - 4; i; --i) {
- UChar ch = buffer[i];
-
- // Only modern Russian letters, digits and dashes are allowed.
- if ((ch >= 0x0430 && ch <= 0x044f) || ch == 0x0451|| (ch >= '0' && ch <= '9') || ch == '-')
- continue;
-
- // Only check top level domain. Lower level registrars may have different rules.
- if (ch == '.')
- break;
-
- return NO;
- }
- return YES;
- }
-
- // Not a known top level domain with special rules.
- return NO;
-}
-
-// Return value of nil means no mapping is necessary.
-// If makeString is NO, then return value is either nil or self to indicate mapping is necessary.
-// If makeString is YES, then return value is either nil or the mapped string.
-static NSString *mapHostNameWithRange(NSString *string, NSRange range, BOOL encode, BOOL makeString)
-{
- if (range.length > HOST_NAME_BUFFER_LENGTH)
- return nil;
-
- if (![string length])
- return nil;
-
- UChar sourceBuffer[HOST_NAME_BUFFER_LENGTH];
- UChar destinationBuffer[HOST_NAME_BUFFER_LENGTH];
-
- if (encode && [string rangeOfString:@"%" options:NSLiteralSearch range:range].location != NSNotFound) {
- NSString *substring = [string substringWithRange:range];
- substring = WebCoreCFAutorelease(CFURLCreateStringByReplacingPercentEscapes(NULL, (CFStringRef)substring, CFSTR("")));
- if (substring) {
- string = substring;
- range = NSMakeRange(0, [string length]);
- }
- }
-
- int length = range.length;
- [string getCharacters:sourceBuffer range:range];
-
- UErrorCode error = U_ZERO_ERROR;
- int32_t numCharactersConverted = (encode ? uidna_IDNToASCII : uidna_IDNToUnicode)(sourceBuffer, length, destinationBuffer, HOST_NAME_BUFFER_LENGTH, UIDNA_ALLOW_UNASSIGNED, NULL, &error);
- if (error != U_ZERO_ERROR)
- return nil;
-
- if (numCharactersConverted == length && !memcmp(sourceBuffer, destinationBuffer, length * sizeof(UChar)))
- return nil;
-
- if (!encode && !allCharactersInIDNScriptWhiteList(destinationBuffer, numCharactersConverted) && !allCharactersAllowedByTLDRules(destinationBuffer, numCharactersConverted))
- return nil;
-
- return makeString ? (NSString *)[NSString stringWithCharacters:destinationBuffer length:numCharactersConverted] : string;
-}
-
-BOOL hostNameNeedsDecodingWithRange(NSString *string, NSRange range)
-{
- return mapHostNameWithRange(string, range, NO, NO) != nil;
-}
-
-BOOL hostNameNeedsEncodingWithRange(NSString *string, NSRange range)
-{
- return mapHostNameWithRange(string, range, YES, NO) != nil;
-}
-
-NSString *decodeHostNameWithRange(NSString *string, NSRange range)
-{
- return mapHostNameWithRange(string, range, NO, YES);
-}
-
-NSString *encodeHostNameWithRange(NSString *string, NSRange range)
-{
- return mapHostNameWithRange(string, range, YES, YES);
-}
-
-NSString *decodeHostName(NSString *string)
-{
- NSString *name = mapHostNameWithRange(string, NSMakeRange(0, [string length]), NO, YES);
- return !name ? string : name;
-}
-
-NSString *encodeHostName(NSString *string)
-{
- NSString *name = mapHostNameWithRange(string, NSMakeRange(0, [string length]), YES, YES);
- return !name ? string : name;
-}
-
-static void collectRangesThatNeedMapping(NSString *string, NSRange range, void *context, BOOL encode)
-{
- BOOL needsMapping = encode ? hostNameNeedsEncodingWithRange(string, range) : hostNameNeedsDecodingWithRange(string, range);
- if (!needsMapping)
- return;
-
- NSMutableArray **array = (NSMutableArray **)context;
- if (!*array)
- *array = [[NSMutableArray alloc] init];
-
- [*array addObject:[NSValue valueWithRange:range]];
-}
-
-static void collectRangesThatNeedEncoding(NSString *string, NSRange range, void *context)
-{
- return collectRangesThatNeedMapping(string, range, context, YES);
-}
-
-static void collectRangesThatNeedDecoding(NSString *string, NSRange range, void *context)
-{
- return collectRangesThatNeedMapping(string, range, context, NO);
-}
-
-static inline NSCharacterSet *retain(NSCharacterSet *charset)
-{
- CFRetain(charset);
- return charset;
-}
-
-static void applyHostNameFunctionToMailToURLString(NSString *string, StringRangeApplierFunction f, void *context)
-{
- // In a mailto: URL, host names come after a '@' character and end with a '>' or ',' or '?' character.
- // Skip quoted strings so that characters in them don't confuse us.
- // When we find a '?' character, we are past the part of the URL that contains host names.
-
- static NSCharacterSet *hostNameOrStringStartCharacters = retain([NSCharacterSet characterSetWithCharactersInString:@"\"@?"]);
- static NSCharacterSet *hostNameEndCharacters = retain([NSCharacterSet characterSetWithCharactersInString:@">,?"]);
- static NSCharacterSet *quotedStringCharacters = retain([NSCharacterSet characterSetWithCharactersInString:@"\"\\"]);
-
- unsigned stringLength = [string length];
- NSRange remaining = NSMakeRange(0, stringLength);
-
- while (1) {
- // Find start of host name or of quoted string.
- NSRange hostNameOrStringStart = [string rangeOfCharacterFromSet:hostNameOrStringStartCharacters options:0 range:remaining];
- if (hostNameOrStringStart.location == NSNotFound)
- return;
-
- unichar c = [string characterAtIndex:hostNameOrStringStart.location];
- remaining.location = NSMaxRange(hostNameOrStringStart);
- remaining.length = stringLength - remaining.location;
-
- if (c == '?')
- return;
-
- if (c == '@') {
- // Find end of host name.
- unsigned hostNameStart = remaining.location;
- NSRange hostNameEnd = [string rangeOfCharacterFromSet:hostNameEndCharacters options:0 range:remaining];
- BOOL done;
- if (hostNameEnd.location == NSNotFound) {
- hostNameEnd.location = stringLength;
- done = YES;
- } else {
- remaining.location = hostNameEnd.location;
- remaining.length = stringLength - remaining.location;
- done = NO;
- }
-
- // Process host name range.
- f(string, NSMakeRange(hostNameStart, hostNameEnd.location - hostNameStart), context);
-
- if (done)
- return;
- } else {
- // Skip quoted string.
- ASSERT(c == '"');
- while (1) {
- NSRange escapedCharacterOrStringEnd = [string rangeOfCharacterFromSet:quotedStringCharacters options:0 range:remaining];
- if (escapedCharacterOrStringEnd.location == NSNotFound)
- return;
-
- c = [string characterAtIndex:escapedCharacterOrStringEnd.location];
- remaining.location = NSMaxRange(escapedCharacterOrStringEnd);
- remaining.length = stringLength - remaining.location;
-
- // If we are the end of the string, then break from the string loop back to the host name loop.
- if (c == '"')
- break;
-
- // Skip escaped character.
- ASSERT(c == '\\');
- if (!remaining.length)
- return;
-
- remaining.location += 1;
- remaining.length -= 1;
- }
- }
- }
-}
-
-static void applyHostNameFunctionToURLString(NSString *string, StringRangeApplierFunction f, void *context)
-{
- // Find hostnames. Too bad we can't use any real URL-parsing code to do this,
- // but we have to do it before doing all the %-escaping, and this is the only
- // code we have that parses mailto URLs anyway.
-
- // Maybe we should implement this using a character buffer instead?
-
- if (hasCaseInsensitivePrefix(string, @"mailto:")) {
- applyHostNameFunctionToMailToURLString(string, f, context);
- return;
- }
-
- // Find the host name in a hierarchical URL.
- // It comes after a "://" sequence, with scheme characters preceding.
- // If ends with the end of the string or a ":", "/", or a "?".
- // If there is a "@" character, the host part is just the part after the "@".
- NSRange separatorRange = [string rangeOfString:@"://"];
- if (separatorRange.location == NSNotFound)
- return;
-
- // Check that all characters before the :// are valid scheme characters.
- static NSCharacterSet *nonSchemeCharacters = retain([[NSCharacterSet characterSetWithCharactersInString:@"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-."] invertedSet]);
- if ([string rangeOfCharacterFromSet:nonSchemeCharacters options:0 range:NSMakeRange(0, separatorRange.location)].location != NSNotFound)
- return;
-
- unsigned stringLength = [string length];
-
- static NSCharacterSet *hostTerminators = retain([NSCharacterSet characterSetWithCharactersInString:@":/?#"]);
-
- // Start after the separator.
- unsigned authorityStart = NSMaxRange(separatorRange);
-
- // Find terminating character.
- NSRange hostNameTerminator = [string rangeOfCharacterFromSet:hostTerminators options:0 range:NSMakeRange(authorityStart, stringLength - authorityStart)];
- unsigned hostNameEnd = hostNameTerminator.location == NSNotFound ? stringLength : hostNameTerminator.location;
-
- // Find "@" for the start of the host name.
- NSRange userInfoTerminator = [string rangeOfString:@"@" options:0 range:NSMakeRange(authorityStart, hostNameEnd - authorityStart)];
- unsigned hostNameStart = userInfoTerminator.location == NSNotFound ? authorityStart : NSMaxRange(userInfoTerminator);
-
- f(string, NSMakeRange(hostNameStart, hostNameEnd - hostNameStart), context);
-}
-
-static NSString *mapHostNames(NSString *string, BOOL encode)
-{
- // Generally, we want to optimize for the case where there is one host name that does not need mapping.
-
- if (encode && [string canBeConvertedToEncoding:NSASCIIStringEncoding])
- return string;
-
- // Make a list of ranges that actually need mapping.
- NSMutableArray *hostNameRanges = nil;
- StringRangeApplierFunction f = encode ? collectRangesThatNeedEncoding : collectRangesThatNeedDecoding;
- applyHostNameFunctionToURLString(string, f, &hostNameRanges);
- if (!hostNameRanges)
- return string;
-
- // Do the mapping.
- NSMutableString *mutableCopy = [string mutableCopy];
- unsigned i = [hostNameRanges count];
- while (i--) {
- NSRange hostNameRange = [[hostNameRanges objectAtIndex:i] rangeValue];
- NSString *mappedHostName = encode ? encodeHostNameWithRange(string, hostNameRange) : decodeHostNameWithRange(string, hostNameRange);
- [mutableCopy replaceCharactersInRange:hostNameRange withString:mappedHostName];
- }
- [hostNameRanges release];
- return [mutableCopy autorelease];
-}
-
-static BOOL isHexDigit(char c)
-{
- return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f');
-}
-
-static char hexDigit(int i)
-{
- if (i < 0 || i > 16)
- return '0';
-
- return (i >= 10) ? i - 10 + 'A' : i += '0';
-}
-
-static int hexDigitValue(char c)
-{
- if (c >= '0' && c <= '9')
- return c - '0';
-
- if (c >= 'A' && c <= 'F')
- return c - 'A' + 10;
-
- if (c >= 'a' && c <= 'f')
- return c - 'a' + 10;
-
- LOG_ERROR("illegal hex digit");
- return 0;
-}
-
-static NSString *stringByTrimmingWhitespace(NSString *string)
-{
- NSMutableString *trimmed = [[string mutableCopy] autorelease];
- CFStringTrimWhitespace((CFMutableStringRef)trimmed);
- return trimmed;
-}
-
-NSURL *URLByTruncatingOneCharacterBeforeComponent(NSURL *URL, CFIndex component)
-{
- if (!URL)
- return nil;
-
- CFRange fragRg = CFURLGetByteRangeForComponent((CFURLRef)URL, static_cast<CFURLComponentType>(component), NULL);
- if (fragRg.location == kCFNotFound)
- return URL;
-
- UInt8 *urlBytes, buffer[2048];
- CFIndex numBytes = CFURLGetBytes((CFURLRef)URL, buffer, 2048);
- if (numBytes == -1) {
- numBytes = CFURLGetBytes((CFURLRef)URL, NULL, 0);
- urlBytes = static_cast<UInt8*>(malloc(numBytes));
- CFURLGetBytes((CFURLRef)URL, urlBytes, numBytes);
- } else
- urlBytes = buffer;
-
- NSURL *result = (NSURL *)CFMakeCollectable(CFURLCreateWithBytes(NULL, urlBytes, fragRg.location - 1, kCFStringEncodingUTF8, NULL));
- if (!result)
- result = (NSURL *)CFMakeCollectable(CFURLCreateWithBytes(NULL, urlBytes, fragRg.location - 1, kCFStringEncodingISOLatin1, NULL));
-
- if (urlBytes != buffer)
- free(urlBytes);
- return result ? [result autorelease] : URL;
-}
-
-static NSURL *URLByRemovingResourceSpecifier(NSURL *URL)
-{
- return URLByTruncatingOneCharacterBeforeComponent(URL, kCFURLComponentResourceSpecifier);
-}
-
-NSURL *URLWithData(NSData *data, NSURL *baseURL)
-{
- if (!data)
- return nil;
-
- NSURL *result = nil;
- size_t length = [data length];
- if (length > 0) {
- // work around <rdar://4470771>: CFURLCreateAbsoluteURLWithBytes(.., TRUE) doesn't remove non-path components.
- baseURL = URLByRemovingResourceSpecifier(baseURL);
-
- const UInt8 *bytes = static_cast<const UInt8*>([data bytes]);
-
- // CFURLCreateAbsoluteURLWithBytes would complain to console if we passed a path to it.
- if (bytes[0] == '/' && !baseURL)
- return nil;
-
- // NOTE: We use UTF-8 here since this encoding is used when computing strings when returning URL components
- // (e.g calls to NSURL -path). However, this function is not tolerant of illegal UTF-8 sequences, which
- // could either be a malformed string or bytes in a different encoding, like shift-jis, so we fall back
- // onto using ISO Latin 1 in those cases.
- result = WebCoreCFAutorelease(CFURLCreateAbsoluteURLWithBytes(NULL, bytes, length, kCFStringEncodingUTF8, (CFURLRef)baseURL, YES));
- if (!result)
- result = WebCoreCFAutorelease(CFURLCreateAbsoluteURLWithBytes(NULL, bytes, length, kCFStringEncodingISOLatin1, (CFURLRef)baseURL, YES));
- } else
- result = [NSURL URLWithString:@""];
-
- return result;
-}
-
-NSURL *URLWithUserTypedString(NSString *string, NSURL *URL)
-{
- if (!string)
- return nil;
-
- string = mapHostNames(stringByTrimmingWhitespace(string), YES);
-
- NSData *userTypedData = [string dataUsingEncoding:NSUTF8StringEncoding];
- ASSERT(userTypedData);
-
- const UInt8* inBytes = static_cast<const UInt8 *>([userTypedData bytes]);
- int inLength = [userTypedData length];
- if (!inLength)
- return [NSURL URLWithString:@""];
-
- char* outBytes = static_cast<char *>(malloc(inLength * 3)); // large enough to %-escape every character
- char* p = outBytes;
- int outLength = 0;
- for (int i = 0; i < inLength; i++) {
- UInt8 c = inBytes[i];
- if (c <= 0x20 || c >= 0x7f) {
- *p++ = '%';
- *p++ = hexDigit(c >> 4);
- *p++ = hexDigit(c & 0xf);
- outLength += 3;
- } else {
- *p++ = c;
- outLength++;
- }
- }
-
- NSData *data = [NSData dataWithBytesNoCopy:outBytes length:outLength]; // adopts outBytes
- return URLWithData(data, URL);
-}
-
-static BOOL hasQuestionMarkOnlyQueryString(NSURL *URL)
-{
- CFRange rangeWithSeparators;
- CFURLGetByteRangeForComponent((CFURLRef)URL, kCFURLComponentQuery, &rangeWithSeparators);
- if (rangeWithSeparators.location != kCFNotFound && rangeWithSeparators.length == 1)
- return YES;
-
- return NO;
-}
-
-#define completeURL (CFURLComponentType)-1
-
-NSData *dataForURLComponentType(NSURL *URL, CFIndex componentType)
-{
- static int URLComponentTypeBufferLength = 2048;
-
- UInt8 staticAllBytesBuffer[URLComponentTypeBufferLength];
- UInt8 *allBytesBuffer = staticAllBytesBuffer;
-
- CFIndex bytesFilled = CFURLGetBytes((CFURLRef)URL, allBytesBuffer, URLComponentTypeBufferLength);
- if (bytesFilled == -1) {
- CFIndex bytesToAllocate = CFURLGetBytes((CFURLRef)URL, NULL, 0);
- allBytesBuffer = static_cast<UInt8 *>(malloc(bytesToAllocate));
- bytesFilled = CFURLGetBytes((CFURLRef)URL, allBytesBuffer, bytesToAllocate);
- }
-
- CFRange range;
- if (componentType != completeURL) {
- range = CFURLGetByteRangeForComponent((CFURLRef)URL, static_cast<CFURLComponentType>(componentType), NULL);
- if (range.location == kCFNotFound)
- return nil;
- } else {
- range.location = 0;
- range.length = bytesFilled;
- }
-
- NSData *componentData = [NSData dataWithBytes:allBytesBuffer + range.location length:range.length];
-
- const unsigned char *bytes = static_cast<const unsigned char *>([componentData bytes]);
- NSMutableData *resultData = [NSMutableData data];
- // NOTE: add leading '?' to query strings non-zero length query strings.
- // NOTE: retain question-mark only query strings.
- if (componentType == kCFURLComponentQuery) {
- if (range.length > 0 || hasQuestionMarkOnlyQueryString(URL))
- [resultData appendBytes:"?" length:1];
- }
- for (int i = 0; i < range.length; i++) {
- unsigned char c = bytes[i];
- if (c <= 0x20 || c >= 0x7f) {
- char escaped[3];
- escaped[0] = '%';
- escaped[1] = hexDigit(c >> 4);
- escaped[2] = hexDigit(c & 0xf);
- [resultData appendBytes:escaped length:3];
- } else {
- char b[1];
- b[0] = c;
- [resultData appendBytes:b length:1];
- }
- }
-
- if (staticAllBytesBuffer != allBytesBuffer)
- free(allBytesBuffer);
-
- return resultData;
-}
-
-static NSURL *URLByRemovingComponentAndSubsequentCharacter(NSURL *URL, CFURLComponentType component)
-{
- CFRange range = CFURLGetByteRangeForComponent((CFURLRef)URL, component, 0);
- if (range.location == kCFNotFound)
- return URL;
-
- // Remove one subsequent character.
- range.length++;
-
- UInt8* urlBytes;
- UInt8 buffer[2048];
- CFIndex numBytes = CFURLGetBytes((CFURLRef)URL, buffer, 2048);
- if (numBytes == -1) {
- numBytes = CFURLGetBytes((CFURLRef)URL, NULL, 0);
- urlBytes = static_cast<UInt8*>(malloc(numBytes));
- CFURLGetBytes((CFURLRef)URL, urlBytes, numBytes);
- } else
- urlBytes = buffer;
-
- if (numBytes < range.location)
- return URL;
- if (numBytes < range.location + range.length)
- range.length = numBytes - range.location;
-
- memmove(urlBytes + range.location, urlBytes + range.location + range.length, numBytes - range.location + range.length);
-
- NSURL *result = (NSURL *)CFMakeCollectable(CFURLCreateWithBytes(NULL, urlBytes, numBytes - range.length, kCFStringEncodingUTF8, NULL));
- if (!result)
- result = (NSURL *)CFMakeCollectable(CFURLCreateWithBytes(NULL, urlBytes, numBytes - range.length, kCFStringEncodingISOLatin1, NULL));
-
- if (urlBytes != buffer)
- free(urlBytes);
-
- return result ? [result autorelease] : URL;
-}
-
-NSURL *URLByRemovingUserInfo(NSURL *URL)
-{
- return URLByRemovingComponentAndSubsequentCharacter(URL, kCFURLComponentUserInfo);
-}
-
-NSData *originalURLData(NSURL *URL)
-{
- UInt8 *buffer = (UInt8 *)malloc(URL_BYTES_BUFFER_LENGTH);
- CFIndex bytesFilled = CFURLGetBytes((CFURLRef)URL, buffer, URL_BYTES_BUFFER_LENGTH);
- if (bytesFilled == -1) {
- CFIndex bytesToAllocate = CFURLGetBytes((CFURLRef)URL, NULL, 0);
- buffer = (UInt8 *)realloc(buffer, bytesToAllocate);
- bytesFilled = CFURLGetBytes((CFURLRef)URL, buffer, bytesToAllocate);
- ASSERT(bytesFilled == bytesToAllocate);
- }
-
- // buffer is adopted by the NSData
- NSData *data = [NSData dataWithBytesNoCopy:buffer length:bytesFilled freeWhenDone:YES];
-
- NSURL *baseURL = (NSURL *)CFURLGetBaseURL((CFURLRef)URL);
- if (baseURL)
- return originalURLData(URLWithData(data, baseURL));
- return data;
-}
-
-static CFStringRef createStringWithEscapedUnsafeCharacters(CFStringRef string)
-{
- CFIndex length = CFStringGetLength(string);
- Vector<UChar, 2048> sourceBuffer(length);
- CFStringGetCharacters(string, CFRangeMake(0, length), sourceBuffer.data());
-
- Vector<UChar, 2048> outBuffer;
-
- CFIndex i = 0;
- while (i < length) {
- UChar32 c;
- U16_NEXT(sourceBuffer, i, length, c)
-
- if (isLookalikeCharacter(c)) {
- uint8_t utf8Buffer[4];
- CFIndex offset = 0;
- UBool failure = false;
- U8_APPEND(utf8Buffer, offset, 4, c, failure)
- ASSERT(!failure);
-
- for (CFIndex j = 0; j < offset; ++j) {
- outBuffer.append('%');
- outBuffer.append(hexDigit(utf8Buffer[j] >> 4));
- outBuffer.append(hexDigit(utf8Buffer[j] & 0xf));
- }
- } else {
- UChar utf16Buffer[2];
- CFIndex offset = 0;
- UBool failure = false;
- U16_APPEND(utf16Buffer, offset, 2, c, failure)
- ASSERT(!failure);
- for (CFIndex j = 0; j < offset; ++j)
- outBuffer.append(utf16Buffer[j]);
- }
- }
-
- return CFStringCreateWithCharacters(NULL, outBuffer.data(), outBuffer.size());
-}
-
-NSString *userVisibleString(NSURL *URL)
-{
- NSData *data = originalURLData(URL);
- const unsigned char *before = static_cast<const unsigned char*>([data bytes]);
- int length = [data length];
-
- bool needsHostNameDecoding = false;
-
- const unsigned char *p = before;
- int bufferLength = (length * 3) + 1;
- char *after = static_cast<char *>(malloc(bufferLength)); // large enough to %-escape every character
- char *q = after;
- for (int i = 0; i < length; i++) {
- unsigned char c = p[i];
- // unescape escape sequences that indicate bytes greater than 0x7f
- if (c == '%' && (i + 1 < length && isHexDigit(p[i + 1])) && i + 2 < length && isHexDigit(p[i + 2])) {
- unsigned char u = (hexDigitValue(p[i + 1]) << 4) | hexDigitValue(p[i + 2]);
- if (u > 0x7f) {
- // unescape
- *q++ = u;
- } else {
- // do not unescape
- *q++ = p[i];
- *q++ = p[i + 1];
- *q++ = p[i + 2];
- }
- i += 2;
- } else {
- *q++ = c;
-
- // Check for "xn--" in an efficient, non-case-sensitive, way.
- if (c == '-' && i >= 3 && !needsHostNameDecoding && (q[-4] | 0x20) == 'x' && (q[-3] | 0x20) == 'n' && q[-2] == '-')
- needsHostNameDecoding = true;
- }
- }
- *q = '\0';
-
- // Check string to see if it can be converted to display using UTF-8
- NSString *result = [NSString stringWithUTF8String:after];
- if (!result) {
- // Could not convert to UTF-8.
- // Convert characters greater than 0x7f to escape sequences.
- // Shift current string to the end of the buffer
- // then we will copy back bytes to the start of the buffer
- // as we convert.
- int afterlength = q - after;
- char *p = after + bufferLength - afterlength - 1;
- memmove(p, after, afterlength + 1); // copies trailing '\0'
- char *q = after;
- while (*p) {
- unsigned char c = *p;
- if (c > 0x7f) {
- *q++ = '%';
- *q++ = hexDigit(c >> 4);
- *q++ = hexDigit(c & 0xf);
- } else
- *q++ = *p;
- p++;
- }
- *q = '\0';
- result = [NSString stringWithUTF8String:after];
- }
-
- free(after);
-
- result = mapHostNames(result, !needsHostNameDecoding);
- result = [result precomposedStringWithCanonicalMapping];
- return WebCoreCFAutorelease(createStringWithEscapedUnsafeCharacters((CFStringRef)result));
-}
-
-BOOL isUserVisibleURL(NSString *string)
-{
- BOOL valid = YES;
- // get buffer
-
- char static_buffer[1024];
- const char *p;
- BOOL success = CFStringGetCString((CFStringRef)string, static_buffer, 1023, kCFStringEncodingUTF8);
- p = success ? static_buffer : [string UTF8String];
-
- int length = strlen(p);
-
- // check for characters <= 0x20 or >=0x7f, %-escape sequences of %7f, and xn--, these
- // are the things that will lead _web_userVisibleString to actually change things.
- for (int i = 0; i < length; i++) {
- unsigned char c = p[i];
- // escape control characters, space, and delete
- if (c <= 0x20 || c == 0x7f) {
- valid = NO;
- break;
- } else if (c == '%' && (i + 1 < length && isHexDigit(p[i + 1])) && i + 2 < length && isHexDigit(p[i + 2])) {
- unsigned char u = (hexDigitValue(p[i + 1]) << 4) | hexDigitValue(p[i + 2]);
- if (u > 0x7f) {
- valid = NO;
- break;
- }
- i += 2;
- } else {
- // Check for "xn--" in an efficient, non-case-sensitive, way.
- if (c == '-' && i >= 3 && (p[i - 3] | 0x20) == 'x' && (p[i - 2] | 0x20) == 'n' && p[i - 1] == '-') {
- valid = NO;
- break;
- }
- }
- }
-
- return valid;
-}
-
-} // namespace WebCore
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