88 lines
2.5 KiB
Objective-C
88 lines
2.5 KiB
Objective-C
/* NGVCardPhoto.m - this file is part of NGCards
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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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* NGCards is free software; you can redistribute it and/or modify it under
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* the terms of the GNU Lesser General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* NGCards is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with NGCards; see the file COPYING. If not, write to the
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* Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#import <Foundation/NSArray.h>
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#import <Foundation/NSDictionary.h>
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#import <Foundation/NSString.h>
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#import <NGExtensions/NGBase64Coding.h>
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#import <NGExtensions/NSObject+Logs.h>
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#import "NGVCardPhoto.h"
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@implementation NGVCardPhoto
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- (BOOL) isInline
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{
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return ![[self value: 0 ofAttribute: @"value"] isEqualToString: @"uri"];
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}
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- (NSString *) type
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{
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NSString *type;
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type = [[self value: 0 ofAttribute: @"type"] uppercaseString];
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if (![type length])
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type = @"JPEG";
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return type;
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}
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- (NSData *) decodedContent
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{
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NSString *encoding, *value;
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NSData *decodedContent;
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decodedContent = nil;
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if ([self isInline])
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{
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encoding = [[self value: 0 ofAttribute: @"encoding"] uppercaseString];
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if ([encoding isEqualToString: @"B"]
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|| [encoding isEqualToString: @"BASE64"])
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{
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/* We bypass -[values:] because we want to obtain the undecoded
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value first. */
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if ([values count] > 0 && [[values objectForKey: @""] count] > 0 &&
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[[[values objectForKey: @""] objectAtIndex: 0] count] > 0)
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{
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value = [[[values objectForKey: @""] objectAtIndex: 0]
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componentsJoinedByString: @","];
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decodedContent = [value dataByDecodingBase64];
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}
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else
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[self errorWithFormat: @"attempt to decode empty value"];
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}
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else
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[self errorWithFormat:
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@"decoded content requested with an unknown encoding: '%@'",
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encoding];
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}
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else
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[self errorWithFormat:
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@"decoded content requested on a PHOTO of type 'uri'"];
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return decodedContent;
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}
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@end
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