iOS Base 64 encoding is not working in device !!

[01.vipin]

I am using iOS 3.1. The decoding data is successfully running in simulator. But itz not working in device. PlZ HELP!!!

 

[jnoxx]

Just saying, DUN WORK, HALP.
Will not motivate alot of people figuring this out.
What have u tried, and what classes have u tried.
I have a Base64 encoding string working just fine. I need it to call an URL, and it's coding just fine.
So, u did something wrong, but we can't fix it, if u don't tell us.

 

[01.vipin]

Base64.h
********

#import <Foundation/Foundation.h>


@interface Base64 : NSObject {

}
+ (void) initialize;
+ (NSString*) encode: (const uint8_t*) input length: (NSInteger) length;
+ (NSString*) encode: (NSData*) rawBytes;
+ (NSData*) decode: (const char*) string length:(NSInteger) inputLength;
+ (NSData*) decode: (NSString*) string;
@end

Base64.m
********

#import "Base64.h"

@implementation Base64
#define ArrayLength(x) (sizeof(x)/sizeof(*(x)))

static char encodingTable[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
static char decodingTable[128];

+ (void) initialize {
    if (self == [Base64 class]) {
        memset(decodingTable, 0, ArrayLength(decodingTable));
        for (NSInteger i = 0; i < ArrayLength(encodingTable); i++) {
            decodingTable[encodingTable[i]] = i;
        }
    }
}


+ (NSString*) encode: (const uint8_t*) input length:(NSInteger) length {
    NSMutableData* data = [NSMutableData dataWithLength:((length + 2) / 3) * 4];
    uint8_t* output = (uint8_t*)data.mutableBytes;
   
    for (NSInteger i = 0; i < length; i += 3) {
        NSInteger value = 0;
        for (NSInteger j = i; j < (i + 3); j++) {
            value <<= 8;
           
            if (j < length) {
                value |= (0xFF & input[j]);
            }
        }
       
        NSInteger index = (i / 3) * 4;
        output[index + 0] =                    encodingTable[(value >> 18) & 0x3F];
        output[index + 1] =                    encodingTable[(value >> 12) & 0x3F];
        output[index + 2] = (i + 1) < length ? encodingTable[(value >> 6)  & 0x3F] : '=';
        output[index + 3] = (i + 2) < length ? encodingTable[(value >> 0)  & 0x3F] : '=';
    }
   
    return [[[NSString alloc] initWithData:data
                                  encoding:NSASCIIStringEncoding] autorelease];
}


+ (NSString*) encode: (NSData*) rawBytes {
    return [self encode: (const uint8_t*) rawBytes.bytes length:rawBytes.length];
}


+ (NSData*) decode:(const char*) string length:(NSInteger) inputLength {
    if ((string == NULL) || (inputLength % 4 != 0)) {
        return nil;
    }
   
    while (inputLength > 0 && string[inputLength - 1] == '=') {
        inputLength--;
    }
   
    NSInteger outputLength = inputLength * 3 / 4;
    NSMutableData* data = [NSMutableData dataWithLength:outputLength];
    uint8_t* output = data.mutableBytes;
   
    NSInteger inputPoint = 0;
    NSInteger outputPoint = 0;
    while (inputPoint < inputLength) {
        char i0 = string[inputPoint++];
        char i1 = string[inputPoint++];
        char i2 = inputPoint < inputLength ? string[inputPoint++] : 'A'; /* 'A' will decode to \0 */
        char i3 = inputPoint < inputLength ? string[inputPoint++] : 'A';
       
        output[outputPoint++] = (decodingTable[i0] << 2) | (decodingTable[i1] >> 4);
        if (outputPoint < outputLength) {
            output[outputPoint++] = ((decodingTable[i1] & 0xf) << 4) | (decodingTable[i2] >> 2);
        }
        if (outputPoint < outputLength) {
            output[outputPoint++] = ((decodingTable[i2] & 0x3) << 6) | decodingTable[i3];
        }
    }
   
    return data;
}


+ (NSData*) decode: (NSString*) string {
    return [self decode:[string cStringUsingEncoding:NSASCIIStringEncoding] length:string.length];
}

@end

encode.h
********

#import "Base64.h"

encode.m
********

#import "encode.h"

[Base64 initialize];

NSString *str =[dict objectForKey:@"content:encoded"];
            NSData *data = [str dataUsingEncoding: NSUnicodeStringEncoding];
            NSString *b64EncStr = [Base64 encode:data];

decode.h
*******

#import "Base64.h"

decode.m
********

[Base64 initialize];

NSData    *b64DecData = [Base64 decode:rowNumber];
    NSString* decryptedStr = [[NSString alloc] initWithData:b64DecData encoding:NSUnicodeStringEncoding];
    NSString *rowNum = [html stringByAppendingString:decryptedStr];

Sorry ....... I am new to this iphone programming..!!

I posted some piece of code here....!!! I think it is enough to understand.If not so please kind to reply me.
........

 

[jnoxx]

Code Tags, please..
I'm using the same Base64 encoding method from Kiichi Takeuchi .

So let's code the encoding.

NSString *userName = @"username";
NSString *password = @"password";
NSError *myError = nil;
NSMutableString *loginString = (NSMutableString *)[@"" stringByAppendingFormat:@"%@:%@", userName, password];
NSString *encodedLoginData = [Base64 encode:[loginString dataUsingEncoding:NSUTF8StringEncoding]];


NSURL *promotiesUrl = [NSURL URLWithString:@"https://xxx.xx.com/backend-1.0/service/something/get/something/1"];
	
NSMutableURLRequest *requestPromoties = [NSMutableURLRequest requestWithURL: promotiesUrl  
																	cachePolicy: NSURLRequestReloadIgnoringCacheData    
																timeoutInterval: 3]; 
	
	[requestPromoties addValue: encodedLoginData forHTTPHeaderField:@"Authorization"];

NSHTTPURLResponse *responsePromoties;  
		
	NSData *dataPromotie = [NSURLConnection    
							sendSynchronousRequest: requestPromoties    
							returningResponse: &responsePromoties    
							error: &myError];

After this i do some XML parsing etc. so not usefull to u.

 

[01.vipin]

Ya i got it worked .............. Sincere thnx for your Answer..........bro.