Meta

Categories

Various architecture registers for Objective-C

By admin | February 5, 2009

http://www.clarkcox.com/blog/?p=12

Topics: Cocoa Links |

Released Ground Speed Calculator on the App Store

By admin | December 13, 2008

I released my application Ground Speed Calculator on the iTunes App Store

http://fernssoft.com/index.php/products

 

More to come, stay tuned!

Topics: Cocoa Links, iPhone |

NSString REST category

By admin | December 13, 2008

Implementation file

  1. //
  2. //  NSString+REST.h
  3. //
  4. //  Created by Devon Ferns on 23/11/08.
  5. //  Copyright 2008 Devon Ferns. All rights reserved.
  6. //
  7.  
  8. #import "NSString+REST.h"
  9.  
  10. @implementation NSString (NSStringREST)
  11.  
  12. +(NSString*)resultFromURL:(NSString*)url withPostParameters:(NSArray*)params
  13. {
  14.  NSString* syncURL = url;
  15.  NSMutableURLRequest* request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:syncURL]];
  16.  [request setHTTPMethod:@"POST"];
  17.  
  18.  NSMutableString* httpBody = [[NSMutableString alloc] init];
  19.  
  20.  if(params != nil)
  21.  {
  22.   for(int i=0;i<[params count];i++)
  23.    [httpBody appendString:[NSString stringWithFormat:@"&%@", [params objectAtIndex:i]]];
  24.  }
  25.  
  26.  [request setHTTPBody:[httpBody dataUsingEncoding:NSUTF8StringEncoding]];
  27.  
  28.  NSURLResponse* response;
  29.  NSError* error;
  30.  NSData* r = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
  31.  
  32.  NSString* result = [NSString stringWithCString:[r bytes] length:[r length]];
  33.  
  34.  [httpBody release];
  35.  return result;
  36. }
  37.  
  38. @end

Header file

  1. //
  2. //  NSString+REST.h
  3. //  MobiLog
  4. //
  5. //  Created by Devon Ferns on 23/11/08.
  6. //  Copyright 2008 Devon Ferns. All rights reserved.
  7. //
  8.  
  9. #import <Foundation/Foundation.h>
  10.  
  11.  
  12. @interface NSString (NSStringREST)
  13.  
  14. +(NSString*)resultFromURL:(NSString*)url withPostParameters:(NSArray*)params;
  15.  
  16. @end

Topics: Cocoa Code, iPhone |

NSData+util category

By admin | November 1, 2008

.h file:

  1. #import <Foundation/Foundation.h>
  2.  
  3. @interface NSData (NSData_HexAdditions)
  4. - (NSString*) stringWithHexBytes;
  5. + (NSString*) sha256HashFromString:(NSString*)string;
  6. + (NSString*) sha256HashFromData:(NSData*)data;
  7.  
  8. @end



.m file:

  1. #import "NSData+Util.h"
  2. #import <CommonCrypto/CommonDigest.h>
  3.  
  4. @implementation NSData (NSData_HexAdditions)
  5. - (NSString*) stringWithHexBytes {
  6.  NSMutableString *stringBuffer = [NSMutableString
  7.           stringWithCapacity:([self length] * 2)];
  8.  const unsigned char *dataBuffer = [self bytes];
  9.  int i;
  10.  
  11.  for (i = 0; i < [self length]; ++i)
  12.   [stringBuffer appendFormat:@"%02x", (unsigned long)dataBuffer[ i ]];
  13.  
  14.  return [[stringBuffer copy] autorelease];
  15. }
  16.  
  17. + (NSString*) sha256HashFromData:(NSData*)data
  18. {
  19.  return [NSData sha256HashFromString:[NSString stringWithCString:(const char*)[data bytes] length:[data length]]];
  20. }
  21.  
  22. + (NSString*) sha256HashFromString:(NSString*)string
  23. {
  24.  unsigned char hashedChars[CC_SHA512_DIGEST_LENGTH];
  25.  
  26.  CC_SHA512([string UTF8String],
  27.      [string lengthOfBytesUsingEncoding:NSUTF8StringEncoding],
  28.      hashedChars);
  29.  NSData * hashedData = [NSData dataWithBytes:hashedChars length:CC_SHA512_DIGEST_LENGTH];
  30.  NSData* tmp = [[NSData alloc] initWithData:hashedData];
  31.  NSString* ret = [tmp stringWithHexBytes];
  32.  [tmp release];
  33.  return ret;
  34. }
  35. @end

Topics: Cocoa Code, iPhone |

Generate random cryptographic hash from NSString

By admin | November 1, 2008

Implementation .m file:

  1. #import "NSString+Hash.h"
  2.  
  3.  
  4. @implementation NSString (Hash)
  5.  
  6.  
  7. +(NSString*)randomSaltWithLength:(int)length
  8. {
  9.  char chars[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
  10.  NSMutableString* ret = [[[NSMutableString alloc] initWithCapacity:length] autorelease];
  11.  srandomdev();
  12.  
  13.  for(int i=0;i<length;i++)
  14.  {
  15.   int index = random()%52;
  16.   char a = chars[index];
  17.   [ret appendString:[NSString stringWithCString:&a length:1]];
  18.  }
  19.  
  20.  return ret;
  21. }
  22.  
  23. @end





.h file:

  1. @interface NSString (Hash)
  2.  
  3. +(NSString*)randomSaltWithLength:(int)length;
  4.  
  5. @end

Topics: Cocoa Code, iPhone |

UIAlertView with UIProgressView or UIActivityIndicator

By admin | November 1, 2008

http://discussions.apple.com/thread.jspa?messageID=8215707

  1. - (void) createProgressionAlertWithMessage:(NSString *)message withActivity:(BOOL)activity
  2. {
  3.   progressAlert = [[UIAlertView alloc] initWithTitle: message
  4.                                              message: @"Please wait…"
  5.                                             delegate: self
  6.                                    cancelButtonTitle: nil
  7.                                    otherButtonTitles: nil];
  8.  
  9.  
  10.   // Create the progress bar and add it to the alert
  11.   if (activity) {
  12.     activityView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite];
  13.     activityView.frame = CGRectMake(139.0f-18.0f, 80.0f, 37.0f, 37.0f);
  14.     [progressAlert addSubview:activityView];
  15.     [activityView startAnimating];
  16.   } else {
  17.     progressView = [[UIProgressView alloc] initWithFrame:CGRectMake(30.0f, 80.0f, 225.0f, 90.0f)];
  18.     [progressAlert addSubview:progressView];
  19.     [progressView setProgressViewStyle: UIProgressViewStyleBar];
  20.   }
  21.   [progressAlert show];
  22.   [progressAlert release];
  23. }

Topics: Cocoa Code, iPhone |

building mod_python for leopard

By admin | August 13, 2008

Copied from http://matterkkila.com/2007/12/20/building-mod_python-for-leopard/ in case it goes away in the future

 

Leopard itself comes with recent versions of php, python, and apache. However it does not have mod_python, so if you want to play with things like django you must build mod_python from the source. Just running ./configure, make, make install won’t cut it either. You need to edit the make file built during the ./configure step to include specific compiler flags. I found a lot of sites on the internet with ideas how to fix it, after trying 4 of them that didn’t work I came across one that did. 

Run: 

./configure 

Edit: src/Makefile and after the ‘INCLUDES=’ line add 

INCLUDES+= -Wc,-arch -Wc,ppc -Wc,-arch -Wc,i386 -Wc,-arch -Wc,ppc64 -Wc,-arch -Wc,x86_64
INCLUDES+= -Wl,-arch -Wl,ppc -Wl,-arch -Wl,i386 -Wl,-arch -Wl,ppc64 -Wl,-arch -Wl,x86_64
export ARCHFLAGS='-arch i386 -arch ppc -arch ppc64 -arch x86_64' 

Now run: 

make 
sudo make install

Topics: Uncategorized |

How to install mysql-python on Leopard

By admin | August 13, 2008

http://www.keningle.com/?p=11

Topics: Uncategorized |

Using Bonjour for iPhone/desktop application sync

By admin | July 27, 2008

http://cocoa-nut.de/?p=27

Topics: Cocoa Links, iPhone |

NSViewController sample projects

By admin | July 24, 2008

http://katidev.com/blog/2008/07/24/simple-nsviewcontroller-sample-projects/

Topics: Cocoa Links |


« Previous Entries