Source/NSXMLElementAdditions.m

   1 /*
   2  * MacGDBp
   3  * Copyright (c) 2007 - 2010, Blue Static <http://www.bluestatic.org>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it under the terms of the GNU
   6  * General Public License as published by the Free Software Foundation; either version 2 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
  10  * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along with this program; if not,
  14  * write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  15  */
  16
  17 #import <Cocoa/Cocoa.h>
  18
  19 #import "AppDelegate.h"
  20 #include "base64.h"
  21
  22 @implementation NSXMLElement (GDBpAdditions)
  23
  24 /**
  25  * Returns whether or not this node has any children
  26  */
  27 - (BOOL)isLeaf
  28 {
  29   return ([[[self attributeForName:@"children"] stringValue] intValue] == 0);
  30 }
  31
  32 /**
  33  * Returns the value of the property
  34  */
  35 - (NSString*)base64DecodedValue
  36 {
  37   // Non-leaf nodes do not have a value:
  38   //   https://www.bluestatic.org/bugs/showreport.php?bugid=168
  39   if (![self isLeaf]) {
  40     return @"...";
  41   }
  42
  43   // The value of the node is base64 encoded.
  44   if ([[[self attributeForName:@"encoding"] stringValue] isEqualToString:@"base64"]) {
  45     const char* str = [[self stringValue] UTF8String];
  46     int strlen = [[self stringValue] length];
  47
  48     char* data;
  49     size_t datalen;
  50
  51     if (!base64_decode_alloc(str, strlen, &data, &datalen))
  52       NSLog(@"error in converting %@ from base64", self);
  53
  54     NSString* ret = nil;
  55     if (data) {
  56       ret = [NSString stringWithUTF8String:data];
  57       free(data);
  58     }
  59
  60     return ret;
  61   }
  62
  63   // The value is just a normal string.
  64   return [self stringValue];
  65 }
  66
  67 @end