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Removed unnecessary NSData category

NSData+Base64 is already present in MKNetworkKit now, no need to have it here.
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1 parent a95d355 commit e9c613228fc4676a5ed823d52be3054f8828ab1f @rsieiro rsieiro committed Feb 8, 2012
@@ -1,42 +0,0 @@
-//
-// NSData+Base64.h
-// base64
-//
-// Created by Matt Gallagher on 2009/06/03.
-// Copyright 2009 Matt Gallagher. All rights reserved.
-//
-// This software is provided 'as-is', without any express or implied
-// warranty. In no event will the authors be held liable for any damages
-// arising from the use of this software. Permission is granted to anyone to
-// use this software for any purpose, including commercial applications, and to
-// alter it and redistribute it freely, subject to the following restrictions:
-//
-// 1. The origin of this software must not be misrepresented; you must not
-// claim that you wrote the original software. If you use this software
-// in a product, an acknowledgment in the product documentation would be
-// appreciated but is not required.
-// 2. Altered source versions must be plainly marked as such, and must not be
-// misrepresented as being the original software.
-// 3. This notice may not be removed or altered from any source
-// distribution.
-//
-
-#import <Foundation/Foundation.h>
-
-void *NewBase64Decode(
- const char *inputBuffer,
- size_t length,
- size_t *outputLength);
-
-char *NewBase64Encode(
- const void *inputBuffer,
- size_t length,
- bool separateLines,
- size_t *outputLength);
-
-@interface NSData (Base64)
-
-+ (NSData *)dataFromBase64String:(NSString *)aString;
-- (NSString *)base64EncodedString;
-
-@end
@@ -1,308 +0,0 @@
-//
-// NSData+Base64.m
-// base64
-//
-// Created by Matt Gallagher on 2009/06/03.
-// Copyright 2009 Matt Gallagher. All rights reserved.
-//
-// This software is provided 'as-is', without any express or implied
-// warranty. In no event will the authors be held liable for any damages
-// arising from the use of this software. Permission is granted to anyone to
-// use this software for any purpose, including commercial applications, and to
-// alter it and redistribute it freely, subject to the following restrictions:
-//
-// 1. The origin of this software must not be misrepresented; you must not
-// claim that you wrote the original software. If you use this software
-// in a product, an acknowledgment in the product documentation would be
-// appreciated but is not required.
-// 2. Altered source versions must be plainly marked as such, and must not be
-// misrepresented as being the original software.
-// 3. This notice may not be removed or altered from any source
-// distribution.
-//
-
-#import "NSData+Base64.h"
-
-//
-// Mapping from 6 bit pattern to ASCII character.
-//
-static unsigned char base64EncodeLookup[65] =
- "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
-//
-// Definition for "masked-out" areas of the base64DecodeLookup mapping
-//
-#define xx 65
-
-//
-// Mapping from ASCII character to 6 bit pattern.
-//
-static unsigned char base64DecodeLookup[256] =
-{
- xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx,
- xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx,
- xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, 62, xx, xx, xx, 63,
- 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, xx, xx, xx, xx, xx, xx,
- xx, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
- 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, xx, xx, xx, xx, xx,
- xx, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
- 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, xx, xx, xx, xx, xx,
- xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx,
- xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx,
- xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx,
- xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx,
- xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx,
- xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx,
- xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx,
- xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx, xx,
-};
-
-//
-// Fundamental sizes of the binary and base64 encode/decode units in bytes
-//
-#define BINARY_UNIT_SIZE 3
-#define BASE64_UNIT_SIZE 4
-
-//
-// NewBase64Decode
-//
-// Decodes the base64 ASCII string in the inputBuffer to a newly malloced
-// output buffer.
-//
-// inputBuffer - the source ASCII string for the decode
-// length - the length of the string or -1 (to specify strlen should be used)
-// outputLength - if not-NULL, on output will contain the decoded length
-//
-// returns the decoded buffer. Must be free'd by caller. Length is given by
-// outputLength.
-//
-void *NewBase64Decode(
- const char *inputBuffer,
- size_t length,
- size_t *outputLength)
-{
- if (length == -1)
- {
- length = strlen(inputBuffer);
- }
-
- size_t outputBufferSize =
- ((length+BASE64_UNIT_SIZE-1) / BASE64_UNIT_SIZE) * BINARY_UNIT_SIZE;
- unsigned char *outputBuffer = (unsigned char *)malloc(outputBufferSize);
-
- size_t i = 0;
- size_t j = 0;
- while (i < length)
- {
- //
- // Accumulate 4 valid characters (ignore everything else)
- //
- unsigned char accumulated[BASE64_UNIT_SIZE];
- size_t accumulateIndex = 0;
- while (i < length)
- {
- unsigned char decode = base64DecodeLookup[inputBuffer[i++]];
- if (decode != xx)
- {
- accumulated[accumulateIndex] = decode;
- accumulateIndex++;
-
- if (accumulateIndex == BASE64_UNIT_SIZE)
- {
- break;
- }
- }
- }
-
- //
- // Store the 6 bits from each of the 4 characters as 3 bytes
- //
- // (Uses improved bounds checking suggested by Alexandre Colucci)
- //
- if(accumulateIndex >= 2)
- outputBuffer[j] = (accumulated[0] << 2) | (accumulated[1] >> 4);
- if(accumulateIndex >= 3)
- outputBuffer[j + 1] = (accumulated[1] << 4) | (accumulated[2] >> 2);
- if(accumulateIndex >= 4)
- outputBuffer[j + 2] = (accumulated[2] << 6) | accumulated[3];
- j += accumulateIndex - 1;
- }
-
- if (outputLength)
- {
- *outputLength = j;
- }
- return outputBuffer;
-}
-
-//
-// NewBase64Encode
-//
-// Encodes the arbitrary data in the inputBuffer as base64 into a newly malloced
-// output buffer.
-//
-// inputBuffer - the source data for the encode
-// length - the length of the input in bytes
-// separateLines - if zero, no CR/LF characters will be added. Otherwise
-// a CR/LF pair will be added every 64 encoded chars.
-// outputLength - if not-NULL, on output will contain the encoded length
-// (not including terminating 0 char)
-//
-// returns the encoded buffer. Must be free'd by caller. Length is given by
-// outputLength.
-//
-char *NewBase64Encode(
- const void *buffer,
- size_t length,
- bool separateLines,
- size_t *outputLength)
-{
- const unsigned char *inputBuffer = (const unsigned char *)buffer;
-
- #define MAX_NUM_PADDING_CHARS 2
- #define OUTPUT_LINE_LENGTH 64
- #define INPUT_LINE_LENGTH ((OUTPUT_LINE_LENGTH / BASE64_UNIT_SIZE) * BINARY_UNIT_SIZE)
- #define CR_LF_SIZE 2
-
- //
- // Byte accurate calculation of final buffer size
- //
- size_t outputBufferSize =
- ((length / BINARY_UNIT_SIZE)
- + ((length % BINARY_UNIT_SIZE) ? 1 : 0))
- * BASE64_UNIT_SIZE;
- if (separateLines)
- {
- outputBufferSize +=
- (outputBufferSize / OUTPUT_LINE_LENGTH) * CR_LF_SIZE;
- }
-
- //
- // Include space for a terminating zero
- //
- outputBufferSize += 1;
-
- //
- // Allocate the output buffer
- //
- char *outputBuffer = (char *)malloc(outputBufferSize);
- if (!outputBuffer)
- {
- return NULL;
- }
-
- size_t i = 0;
- size_t j = 0;
- const size_t lineLength = separateLines ? INPUT_LINE_LENGTH : length;
- size_t lineEnd = lineLength;
-
- while (true)
- {
- if (lineEnd > length)
- {
- lineEnd = length;
- }
-
- for (; i + BINARY_UNIT_SIZE - 1 < lineEnd; i += BINARY_UNIT_SIZE)
- {
- //
- // Inner loop: turn 48 bytes into 64 base64 characters
- //
- outputBuffer[j++] = base64EncodeLookup[(inputBuffer[i] & 0xFC) >> 2];
- outputBuffer[j++] = base64EncodeLookup[((inputBuffer[i] & 0x03) << 4)
- | ((inputBuffer[i + 1] & 0xF0) >> 4)];
- outputBuffer[j++] = base64EncodeLookup[((inputBuffer[i + 1] & 0x0F) << 2)
- | ((inputBuffer[i + 2] & 0xC0) >> 6)];
- outputBuffer[j++] = base64EncodeLookup[inputBuffer[i + 2] & 0x3F];
- }
-
- if (lineEnd == length)
- {
- break;
- }
-
- //
- // Add the newline
- //
- outputBuffer[j++] = '\r';
- outputBuffer[j++] = '\n';
- lineEnd += lineLength;
- }
-
- if (i + 1 < length)
- {
- //
- // Handle the single '=' case
- //
- outputBuffer[j++] = base64EncodeLookup[(inputBuffer[i] & 0xFC) >> 2];
- outputBuffer[j++] = base64EncodeLookup[((inputBuffer[i] & 0x03) << 4)
- | ((inputBuffer[i + 1] & 0xF0) >> 4)];
- outputBuffer[j++] = base64EncodeLookup[(inputBuffer[i + 1] & 0x0F) << 2];
- outputBuffer[j++] = '=';
- }
- else if (i < length)
- {
- //
- // Handle the double '=' case
- //
- outputBuffer[j++] = base64EncodeLookup[(inputBuffer[i] & 0xFC) >> 2];
- outputBuffer[j++] = base64EncodeLookup[(inputBuffer[i] & 0x03) << 4];
- outputBuffer[j++] = '=';
- outputBuffer[j++] = '=';
- }
- outputBuffer[j] = 0;
-
- //
- // Set the output length and return the buffer
- //
- if (outputLength)
- {
- *outputLength = j;
- }
- return outputBuffer;
-}
-
-@implementation NSData (Base64)
-
-//
-// dataFromBase64String:
-//
-// Creates an NSData object containing the base64 decoded representation of
-// the base64 string 'aString'
-//
-// Parameters:
-// aString - the base64 string to decode
-//
-// returns the autoreleased NSData representation of the base64 string
-//
-+ (NSData *)dataFromBase64String:(NSString *)aString
-{
- NSData *data = [aString dataUsingEncoding:NSASCIIStringEncoding];
- size_t outputLength;
- void *outputBuffer = NewBase64Decode([data bytes], [data length], &outputLength);
- NSData *result = [NSData dataWithBytes:outputBuffer length:outputLength];
- free(outputBuffer);
- return result;
-}
-
-//
-// base64EncodedString
-//
-// Creates an NSString object that contains the base 64 encoding of the
-// receiver's data. Lines are broken at 64 characters long.
-//
-// returns an autoreleased NSString being the base 64 representation of the
-// receiver.
-//
-- (NSString *)base64EncodedString
-{
- size_t outputLength;
- char *outputBuffer =
- NewBase64Encode([self bytes], [self length], true, &outputLength);
-
- NSString *result = [[NSString alloc] initWithBytes:outputBuffer length:outputLength encoding:NSASCIIStringEncoding];
- free(outputBuffer);
- return result;
-}
-
-@end
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