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// SUDiskImageUnarchiver.m
// Sparkle
// Created by Andy Matuschak on 6/16/08.
// Copyright 2008 Andy Matuschak. All rights reserved.
#import "SUDiskImageUnarchiver.h"
#import "SUUnarchiver_Private.h"
#import "NTSynchronousTask.h"
#import <CoreServices/CoreServices.h>
@implementation SUDiskImageUnarchiver
+ (BOOL)_canUnarchivePath:(NSString *)path
return [[path pathExtension] isEqualToString:@"dmg"];
- (void)start
[NSThread detachNewThreadSelector:@selector(_extractDMG) toTarget:self withObject:nil];
- (void)_extractDMG
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
BOOL mountedSuccessfully = NO;
// get a unique mount point path
NSString *mountPointName = nil;
NSString *mountPoint = nil;
FSRef tmpRef;
CFUUIDRef uuid = CFUUIDCreate(NULL);
mountPointName = (NSString *)CFUUIDCreateString(NULL, uuid);
[NSMakeCollectable((CFStringRef)mountPointName) autorelease];
[mountPointName autorelease];
mountPoint = [@"/Volumes" stringByAppendingPathComponent:mountPointName];
while (noErr == FSPathMakeRefWithOptions((UInt8 *)[mountPoint fileSystemRepresentation], kFSPathMakeRefDoNotFollowLeafSymlink, &tmpRef, NULL));
NSArray* arguments = [NSArray arrayWithObjects:@"attach", archivePath, @"-mountpoint", mountPoint, @"-noverify", @"-nobrowse", @"-noautoopen", nil];
// set up a pipe and push "yes" (y works too), this will accept any license agreement crap
// not every .dmg needs this, but this will make sure it works with everyone
NSData* yesData = [[[NSData alloc] initWithBytes:"yes\n" length:4] autorelease];
NSData *result = [NTSynchronousTask task:@"/usr/bin/hdiutil" directory:@"/" withArgs:arguments input:yesData];
if (!result) goto reportError;
mountedSuccessfully = YES;
// Now that we've mounted it, we need to copy out its contents.
FSRef srcRef, dstRef;
OSErr err;
err = FSPathMakeRef((UInt8 *)[mountPoint fileSystemRepresentation], &srcRef, NULL);
if (err != noErr) goto reportError;
err = FSPathMakeRef((UInt8 *)[[archivePath stringByDeletingLastPathComponent] fileSystemRepresentation], &dstRef, NULL);
if (err != noErr) goto reportError;
err = FSCopyObjectSync(&srcRef, &dstRef, (CFStringRef)mountPointName, NULL, kFSFileOperationSkipSourcePermissionErrors);
if (err != noErr) goto reportError;
[self performSelectorOnMainThread:@selector(_notifyDelegateOfSuccess) withObject:nil waitUntilDone:NO];
goto finally;
[self performSelectorOnMainThread:@selector(_notifyDelegateOfFailure) withObject:nil waitUntilDone:NO];
if (mountedSuccessfully)
[NSTask launchedTaskWithLaunchPath:@"/usr/bin/hdiutil" arguments:[NSArray arrayWithObjects:@"detach", mountPoint, @"-force", nil]];
[pool drain];
+ (void)load
[self _registerImplementation:self];