1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
//
// 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"
@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 *mountPoint = [@"/Volumes" stringByAppendingPathComponent:[[NSProcessInfo processInfo] globallyUniqueString]];
if ([[NSFileManager defaultManager] fileExistsAtPath:mountPoint]) goto reportError;
// create mount point folder
#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
[[NSFileManager defaultManager] createDirectoryAtPath:mountPoint attributes:nil];
#else
[[NSFileManager defaultManager] createDirectoryAtPath:mountPoint withIntermediateDirectories:YES attributes:nil error:NULL];
#endif
if (![[NSFileManager defaultManager] fileExistsAtPath:mountPoint]) goto reportError;
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.
NSString *targetPath = [[archivePath stringByDeletingLastPathComponent] stringByAppendingPathComponent:[mountPoint lastPathComponent]];
#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
if (![[NSFileManager defaultManager] createDirectoryAtPath:targetPath attributes:nil]) goto reportError;
#else
if (![[NSFileManager defaultManager] createDirectoryAtPath:targetPath withIntermediateDirectories:YES attributes:nil error:NULL]) goto reportError;
#endif
// We can't just copyPath: from the volume root because that always fails. Seems to be a bug.
#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
id subpathEnumerator = [[[NSFileManager defaultManager] directoryContentsAtPath:mountPoint] objectEnumerator];
#else
id subpathEnumerator = [[[NSFileManager defaultManager] contentsOfDirectoryAtPath:mountPoint error:NULL] objectEnumerator];
#endif
NSString *currentSubpath;
while ((currentSubpath = [subpathEnumerator nextObject]))
{
NSString *currentFullPath = [mountPoint stringByAppendingPathComponent:currentSubpath];
// Don't bother trying (and failing) to copy out files we can't read. That's not going to be the app anyway.
if (![[NSFileManager defaultManager] isReadableFileAtPath:currentFullPath]) continue;
#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
if (![[NSFileManager defaultManager] copyPath:currentFullPath toPath:[targetPath stringByAppendingPathComponent:currentSubpath] handler:nil])
#else
if (![[NSFileManager defaultManager] copyItemAtPath:currentFullPath toPath:[targetPath stringByAppendingPathComponent:currentSubpath] error:NULL])
#endif
goto reportError;
}
[self performSelectorOnMainThread:@selector(_notifyDelegateOfSuccess) withObject:nil waitUntilDone:NO];
goto finally;
reportError:
[self performSelectorOnMainThread:@selector(_notifyDelegateOfFailure) withObject:nil waitUntilDone:NO];
finally:
if (mountedSuccessfully)
[NSTask launchedTaskWithLaunchPath:@"/usr/bin/hdiutil" arguments:[NSArray arrayWithObjects:@"detach", mountPoint, @"-force", nil]];
else
#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
[[NSFileManager defaultManager] removeFileAtPath:mountPoint handler:nil];
#else
[[NSFileManager defaultManager] removeItemAtPath:mountPoint error:NULL];
#endif
[pool drain];
}
+ (void)load
{
[self _registerImplementation:self];
}
@end
|