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/*
** CWUUFile.m
**
** Copyright (c) 2002-2004
**
** Author: Ludovic Marcotte <ludovic@Sophos.ca>
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License as published by the Free Software Foundation; either
** version 2.1 of the License, or (at your option) any later version.
**
** This library is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public
** License along with this library; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <Pantomime/CWUUFile.h>
#include <Pantomime/CWConstants.h>
#include <Foundation/NSArray.h>
#include <Foundation/NSFileManager.h>
#include <Foundation/NSValue.h>
#define UUDECODE(c) (((c) - ' ') & 077)
//
//
//
void uudecodeline(char *line, NSMutableData *data)
{
int c, len;
len = UUDECODE(*line++);
while (len)
{
c = UUDECODE(*line) << 2 | UUDECODE(line[1]) >> 4;
[data appendBytes: &c
length: 1];
if (--len)
{
c = UUDECODE(line[1]) << 4 | UUDECODE(line[2]) >> 2;
[data appendBytes: &c
length: 1];
if (--len)
{
c = UUDECODE(line[2]) << 6 | UUDECODE(line[3]);
[data appendBytes: &c
length: 1];
len--;
}
}
line += 4;
}
return;
}
//
//
//
@implementation CWUUFile
- (id) initWithName: (NSString *) theName
data: (NSData *) theData
attributes: (NSDictionary *) theAttributes
{
self = [super init];
[self setName: theName];
[self setData: theData];
[self setAttributes: theAttributes];
return self;
}
//
//
//
- (void) dealloc
{
RELEASE(_name);
RELEASE(_data);
RELEASE(_attributes);
[super dealloc];
}
//
// access / mutation methods
//
- (NSString *) name
{
return _name;
}
- (void) setName: (NSString *) theName
{
ASSIGN(_name, theName);
}
//
//
//
- (NSData *) data
{
return _data;
}
- (void) setData: (NSData *) theData
{
ASSIGN(_data, theData);
}
//
//
//
- (NSDictionary *) attributes
{
return _attributes;
}
- (void) setAttributes: (NSDictionary *) theAttributes
{
ASSIGN(_attributes, theAttributes);
}
//
//
//
+ (CWUUFile *) fileFromUUEncodedString: (NSString *) theString
{
NSString *aString, *aFilename;
NSNumber *theFilePermissions;
NSMutableData *aMutableData;
NSArray *allLines;
CWUUFile *aUUFile;
int i, count;
aMutableData = [NSMutableData dataWithCapacity: [theString length]];
allLines = [theString componentsSeparatedByString: @"\n"];
// We decode our filename and our mode
aString = [allLines objectAtIndex: 0];
theFilePermissions = [NSNumber numberWithInt: [[[aString componentsSeparatedByString: @" "] objectAtIndex: 1] intValue]];
aFilename = [[aString componentsSeparatedByString: @" "] objectAtIndex: 2];
// We now get the data representing our uuencoding string
count = [allLines count]-1;
for (i = 1; i < count; i++)
{
uudecodeline((char *)[[allLines objectAtIndex: i] cString], aMutableData);
}
// We finally initialize our file wrapper will all our informations
aUUFile = [[CWUUFile alloc] initWithName: aFilename
data: aMutableData
attributes: [NSDictionary dictionaryWithObject: theFilePermissions
forKey: NSFilePosixPermissions]];
return AUTORELEASE(aUUFile);
}
//
// FIXME, we currently ignore theRange
//
+ (NSRange) rangeOfUUEncodedStringFromString: (NSString *) theString
range: (NSRange) theRange
{
NSRange r1, r2;
r1 = [theString rangeOfString: @"begin "];
if (r1.length == 0)
{
return NSMakeRange(NSNotFound, 0);
}
r2 = [theString rangeOfString: @"\nend"
options: 0
range: NSMakeRange(r1.location, [theString length] - r1.location)];
if (r2.length == 0)
{
return NSMakeRange(NSNotFound, 0);
}
return NSMakeRange(r1.location, (r2.location + r2.length) - r1.location);
}
@end
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