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/*
* Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#import <WebKit/WebNSFileManagerExtras.h>
#import "WebKitNSStringExtras.h"
#import "WebNSObjectExtras.h"
#import "WebNSURLExtras.h"
#import <wtf/Assertions.h>
#import <WebKitSystemInterface.h>
#import <sys/stat.h>
#import <wtf/RetainPtr.h>
#if __MAC_OS_X_VERSION_MIN_REQUIRED == 1060
extern "C" DADiskRef DADiskCreateFromVolumePath(CFAllocatorRef allocator, DASessionRef session, CFURLRef path);
#endif
@implementation NSFileManager (WebNSFileManagerExtras)
typedef struct MetaDataInfo
{
CFStringRef URLString;
CFStringRef referrer;
CFStringRef path;
} MetaDataInfo;
static void *setMetaData(void* context)
{
MetaDataInfo *info = (MetaDataInfo *)context;
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
WKSetMetadataURL((NSString *)info->URLString, (NSString *)info->referrer, (NSString *)info->path);
if (info->URLString)
CFRelease(info->URLString);
if (info->referrer)
CFRelease(info->referrer);
if (info->path)
CFRelease(info->path);
free(info);
[pool drain];
return 0;
}
- (void)_webkit_setMetadataURL:(NSString *)URLString referrer:(NSString *)referrer atPath:(NSString *)path
{
ASSERT(URLString);
ASSERT(path);
NSURL *URL = [NSURL _web_URLWithUserTypedString:URLString];
if (URL)
URLString = [[URL _web_URLByRemovingUserInfo] _web_userVisibleString];
// Spawn a background thread for WKSetMetadataURL because this function will not return until mds has
// journaled the data we're're trying to set. Depending on what other I/O is going on, it can take some
// time.
pthread_t tid;
pthread_attr_t attr;
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
MetaDataInfo *info = static_cast<MetaDataInfo *>(malloc(sizeof(MetaDataInfo)));
info->URLString = URLString ? CFStringCreateCopy(0, (CFStringRef)URLString) : 0;
info->referrer = referrer ? CFStringCreateCopy(0, (CFStringRef)referrer) : 0;
info->path = path ? CFStringCreateCopy(0, (CFStringRef)path) : 0;
pthread_create(&tid, &attr, setMetaData, info);
pthread_attr_destroy(&attr);
}
- (NSString *)_webkit_startupVolumeName
{
RetainPtr<DASessionRef> session = adoptCF(DASessionCreate(kCFAllocatorDefault));
RetainPtr<DADiskRef> disk = adoptCF(DADiskCreateFromVolumePath(kCFAllocatorDefault, session.get(), (CFURLRef)[NSURL fileURLWithPath:@"/"]));
RetainPtr<CFDictionaryRef> diskDescription = adoptCF(DADiskCopyDescription(disk.get()));
RetainPtr<NSString> diskName = (NSString *)CFDictionaryGetValue(diskDescription.get(), kDADiskDescriptionVolumeNameKey);
return WebCFAutorelease(diskName.leakRef());
}
// -[NSFileManager fileExistsAtPath:] returns NO if there is a broken symlink at the path.
// So we use this function instead, which returns YES if there is anything there, including
// a broken symlink.
static BOOL fileExists(NSString *path)
{
struct stat statBuffer;
return !lstat([path fileSystemRepresentation], &statBuffer);
}
- (NSString *)_webkit_pathWithUniqueFilenameForPath:(NSString *)path
{
// "Fix" the filename of the path.
NSString *filename = [[path lastPathComponent] _webkit_filenameByFixingIllegalCharacters];
path = [[path stringByDeletingLastPathComponent] stringByAppendingPathComponent:filename];
if (fileExists(path)) {
// Don't overwrite existing file by appending "-n", "-n.ext" or "-n.ext.ext" to the filename.
NSString *extensions = nil;
NSString *pathWithoutExtensions;
NSString *lastPathComponent = [path lastPathComponent];
NSRange periodRange = [lastPathComponent rangeOfString:@"."];
if (periodRange.location == NSNotFound) {
pathWithoutExtensions = path;
} else {
extensions = [lastPathComponent substringFromIndex:periodRange.location + 1];
lastPathComponent = [lastPathComponent substringToIndex:periodRange.location];
pathWithoutExtensions = [[path stringByDeletingLastPathComponent] stringByAppendingPathComponent:lastPathComponent];
}
for (unsigned i = 1; ; i++) {
NSString *pathWithAppendedNumber = [NSString stringWithFormat:@"%@-%d", pathWithoutExtensions, i];
path = [extensions length] ? [pathWithAppendedNumber stringByAppendingPathExtension:extensions] : pathWithAppendedNumber;
if (!fileExists(path))
break;
}
}
return path;
}
@end
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