mirror of
https://github.com/samsonjs/arq_restore.git
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141 lines
5 KiB
Objective-C
141 lines
5 KiB
Objective-C
/*
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Copyright (c) 2009-2017, Haystack Software LLC https://www.arqbackup.com
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the names of PhotoMinds LLC or Haystack Software, nor the names of
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their contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#import "CalculateItem.h"
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#import "Tree.h"
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#import "Node.h"
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#import "Repo.h"
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#import "BlobKey.h"
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#import "FileInputStream.h"
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#import "BufferedInputStream.h"
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#import "NSData-GZip.h"
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#import "SHA1Hash.h"
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#import "Restorer.h"
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@implementation CalculateItem
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- (id)initWithPath:(NSString *)thePath tree:(Tree *)theTree {
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if (self = [super init]) {
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path = [thePath retain];
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tree = [theTree retain];
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filesToSkip = [[NSMutableSet alloc] init];
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nextItems = [[NSMutableArray alloc] init];
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}
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return self;
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}
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- (id)initWithPath:(NSString *)thePath node:(Node *)theNode {
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if (self = [super init]) {
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path = [thePath retain];
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node = [theNode retain];
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filesToSkip = [[NSMutableSet alloc] init];
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nextItems = [[NSMutableArray alloc] init];
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}
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return self;
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}
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- (void)dealloc {
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[path release];
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[node release];
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[filesToSkip release];
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[nextItems release];
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[super dealloc];
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}
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- (BOOL)calculateWithRepo:(Repo *)theRepo restorer:(id <Restorer>)theRestorer error:(NSError **)error {
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if (tree != nil) {
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if (![self addBlobKeyToBytesToTransfer:[tree xattrsBlobKey] restorer:theRestorer error:error]) {
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return NO;
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}
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if (![self addBlobKeyToBytesToTransfer:[tree aclBlobKey] restorer:theRestorer error:error]) {
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return NO;
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}
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for (NSString *childNodeName in [tree childNodeNames]) {
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Node *childNode = [tree childNodeWithName:childNodeName];
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NSString *childPath = [path stringByAppendingPathComponent:childNodeName];
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[nextItems addObject:[[[CalculateItem alloc] initWithPath:childPath node:childNode] autorelease]];
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}
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} else {
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NSAssert(node != nil, @"node can't be nil if tree is nil");
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if ([node isTree]) {
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Tree *childTree = [theRepo treeForBlobKey:[node treeBlobKey] error:error];
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if (childTree == nil) {
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return NO;
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}
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[nextItems addObject:[[[CalculateItem alloc] initWithPath:path tree:childTree] autorelease]];
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} else {
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if (![self addBlobKeyToBytesToTransfer:[node xattrsBlobKey] restorer:theRestorer error:error]) {
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return NO;
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}
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if (![self addBlobKeyToBytesToTransfer:[node aclBlobKey] restorer:theRestorer error:error]) {
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return NO;
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}
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for (BlobKey *dataBlobKey in [node dataBlobKeys]) {
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if (![self addBlobKeyToBytesToTransfer:dataBlobKey restorer:theRestorer error:error]) {
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return NO;
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}
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}
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}
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}
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return YES;
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}
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- (unsigned long long)bytesToTransfer {
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return bytesToTransfer;
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}
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- (NSSet *)filesToSkip {
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return filesToSkip;
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}
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- (NSArray *)nextItems {
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return nextItems;
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}
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#pragma mark internal
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- (BOOL)addBlobKeyToBytesToTransfer:(BlobKey *)theBlobKey restorer:(id <Restorer>)theRestorer error:(NSError **)error {
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if (theBlobKey == nil) {
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return YES;
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}
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NSError *myError = nil;
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NSNumber *size = [theRestorer sizeOfBlob:theBlobKey error:&myError];
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if (size == nil) {
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SETERRORFROMMYERROR;
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if ([myError isErrorWithDomain:[theRestorer errorDomain] code:ERROR_NOT_FOUND]) {
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HSLogError(@"%@", [myError localizedDescription]);
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size = [NSNumber numberWithUnsignedLongLong:0];
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} else {
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return NO;
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}
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}
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bytesToTransfer += [size unsignedLongLongValue];
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return YES;
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}
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@end
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