134 lines
3.2 KiB
Objective-C
134 lines
3.2 KiB
Objective-C
/* NSString+MAPIStore.m - this file is part of SOGo
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*
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* Copyright (C) 2010 Inverse inc.
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*
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* Author: Wolfgang Sourdeau <wsourdeau@inverse.ca>
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* This file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <talloc.h>
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#include <stdbool.h>
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#import <Foundation/NSData.h>
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#import "NSString+MAPIStore.h"
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#undef DEBUG
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#include <mapistore/mapistore.h>
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@implementation NSString (MAPIStoreDataTypes)
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+ (id) stringWithGUID: (const struct GUID *) guid
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{
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char *guidString;
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NSString *newString;
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guidString = GUID_string (NULL, guid);
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newString = [self stringWithUTF8String: guidString];
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talloc_free (guidString);
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return newString;
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}
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- (void) extractGUID: (struct GUID *) guid
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{
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GUID_from_string ([self UTF8String], guid);
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}
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- (char *) asUnicodeInMemCtx: (void *) memCtx
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{
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char *unicode;
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NSData *encoded;
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if ([self length] > 0)
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{
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encoded = [self dataUsingEncoding: NSUTF8StringEncoding];
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unicode = talloc_strndup (memCtx, [encoded bytes], [encoded length]);
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}
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else
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unicode = talloc_memdup (memCtx, "", 1);
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return unicode;
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}
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- (BOOL) _decodeHexByte: (uint8_t *) byte
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atPos: (NSUInteger) pos
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{
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BOOL error = NO;
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unichar byteChar;
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byteChar = [self characterAtIndex: pos];
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if (byteChar >= 48 && byteChar <= 57)
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*byte = (uint8_t) byteChar - 48;
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else if (byteChar >= 65 && byteChar <= 70)
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*byte = (uint8_t) byteChar - 55;
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else if (byteChar >= 97 && byteChar <= 102)
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*byte = (uint8_t) byteChar - 87;
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else
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error = YES;
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return error;
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}
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- (BOOL) _decodeHexPair: (uint8_t *) byte
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atPos: (NSUInteger) pos
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{
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BOOL error;
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uint8_t lowValue, highValue;
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error = [self _decodeHexByte: &highValue atPos: pos];
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if (!error)
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{
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error = [self _decodeHexByte: &lowValue atPos: pos + 1];
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if (!error)
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*byte = highValue << 4 | lowValue;
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}
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return error;
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}
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- (NSData *) convertHexStringToBytes
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{
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NSUInteger count, strLen, bytesLen;
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uint8_t *bytes, *currentByte;
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NSData *decoded = nil;
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BOOL error = NO;
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strLen = [self length];
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if ((strLen % 2) == 0)
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{
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bytesLen = strLen / 2;
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bytes = NSZoneCalloc (NULL, bytesLen, sizeof (uint8_t));
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currentByte = bytes;
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for (count = 0; !error && count < strLen; count += 2)
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{
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error = [self _decodeHexPair: currentByte atPos: count];
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currentByte++;
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}
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if (error)
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NSZoneFree (NULL, bytes);
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else
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decoded = [NSData dataWithBytesNoCopy: bytes
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length: bytesLen
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freeWhenDone: YES];
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}
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return decoded;
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}
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@end
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