mirror of
https://github.com/samsonjs/arq_restore.git
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533 lines
24 KiB
Objective-C
533 lines
24 KiB
Objective-C
//
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// ArqRestoreCommand.m
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// arq_restore
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//
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// Created by Stefan Reitshamer on 7/25/14.
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//
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//
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#import "ArqRestoreCommand.h"
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#import "Target.h"
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#import "AWSRegion.h"
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#import "BackupSet.h"
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#import "S3Service.h"
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#import "UserAndComputer.h"
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#import "Bucket.h"
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#import "Repo.h"
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#import "S3RestorerParamSet.h"
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#import "Tree.h"
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#import "Commit.h"
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#import "BlobKey.h"
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#import "S3Restorer.h"
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#import "S3GlacierRestorerParamSet.h"
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#import "S3GlacierRestorer.h"
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#import "GlacierRestorerParamSet.h"
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#import "GlacierRestorer.h"
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#import "S3AuthorizationProvider.h"
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@implementation ArqRestoreCommand
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- (void)dealloc {
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[target release];
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[super dealloc];
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}
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- (NSString *)errorDomain {
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return @"ArqRestoreCommandErrorDomain";
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}
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- (BOOL)executeWithArgc:(int)argc argv:(const char **)argv error:(NSError **)error {
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NSMutableArray *args = [NSMutableArray array];
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for (int i = 0; i < argc; i++) {
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[args addObject:[[[NSString alloc] initWithBytes:argv[i] length:strlen(argv[i]) encoding:NSUTF8StringEncoding] autorelease]];
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}
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if ([args count] < 2) {
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SETNSERROR([self errorDomain], ERROR_USAGE, @"missing arguments");
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return NO;
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}
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int index = 1;
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if ([[args objectAtIndex:1] isEqualToString:@"-l"]) {
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if ([args count] < 4) {
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SETNSERROR([self errorDomain], ERROR_USAGE, @"missing arguments");
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return NO;
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}
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setHSLogLevel(hsLogLevelForName([args objectAtIndex:2]));
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index += 2;
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}
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NSString *cmd = [args objectAtIndex:index];
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int targetParamsIndex = index + 1;
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if ([cmd isEqualToString:@"listcomputers"]) {
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// Valid command, but no additional args.
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} else if ([cmd isEqualToString:@"listfolders"]) {
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if ((argc - targetParamsIndex) < 2) {
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SETNSERROR([self errorDomain], ERROR_USAGE, @"missing arguments for listfolders command");
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return NO;
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}
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targetParamsIndex += 2;
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} else if ([cmd isEqualToString:@"restore"]) {
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if ((argc - targetParamsIndex) < 4) {
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SETNSERROR([self errorDomain], ERROR_USAGE, @"missing arguments");
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return NO;
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}
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targetParamsIndex += 4;
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} else {
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SETNSERROR([self errorDomain], ERROR_USAGE, @"unknown command: %@", cmd);
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return NO;
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}
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if (targetParamsIndex >= argc) {
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SETNSERROR([self errorDomain], ERROR_USAGE, @"missing target type params");
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return NO;
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}
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target = [[self targetForParams:[args subarrayWithRange:NSMakeRange(targetParamsIndex, argc - targetParamsIndex)] error:error] retain];
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if (target == nil) {
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return NO;
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}
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if ([cmd isEqualToString:@"listcomputers"]) {
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if (![self listComputers:error]) {
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return NO;
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}
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} else if ([cmd isEqualToString:@"listfolders"]) {
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if (![self listBucketsForComputerUUID:[args objectAtIndex:index+1] encryptionPassword:[args objectAtIndex:index+2] error:error]) {
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return NO;
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}
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} else if ([cmd isEqualToString:@"restore"]) {
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if (![self restoreComputerUUID:[args objectAtIndex:index+1] bucketUUID:[args objectAtIndex:index+3] encryptionPassword:[args objectAtIndex:index+2] restoreBytesPerSecond:[args objectAtIndex:index+3] error:error]) {
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return NO;
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}
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} else {
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SETNSERROR([self errorDomain], ERROR_USAGE, @"unknown command: %@", cmd);
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return NO;
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}
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return YES;
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}
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#pragma mark internal
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- (Target *)targetForParams:(NSArray *)theParams error:(NSError **)error {
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NSString *theTargetType = [theParams objectAtIndex:0];
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Target *ret = nil;
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if ([theTargetType isEqualToString:@"aws"]) {
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if ([theParams count] != 4) {
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SETNSERROR([self errorDomain], ERROR_USAGE, @"invalid aws parameters");
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return nil;
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}
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NSString *theAccessKey = [theParams objectAtIndex:1];
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NSString *theSecretKey = [theParams objectAtIndex:2];
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NSString *theBucketName = [theParams objectAtIndex:3];
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AWSRegion *awsRegion = [self awsRegionForAccessKey:theAccessKey secretKey:theSecretKey bucketName:theBucketName error:error];
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if (awsRegion == nil) {
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return nil;
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}
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NSURL *s3Endpoint = [awsRegion s3EndpointWithSSL:YES];
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int port = [[s3Endpoint port] intValue];
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NSString *portString = @"";
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if (port != 0) {
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portString = [NSString stringWithFormat:@":%d", port];
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}
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NSURL *targetEndpoint = [NSURL URLWithString:[NSString stringWithFormat:@"%@://%@@%@%@/%@", [s3Endpoint scheme], theAccessKey, [s3Endpoint host], portString, theBucketName]];
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ret = [[[Target alloc] initWithEndpoint:targetEndpoint secret:theSecretKey passphrase:nil] autorelease];
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} else if ([theTargetType isEqualToString:@"sftp"]) {
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if ([theParams count] != 6 && [theParams count] != 7) {
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SETNSERROR([self errorDomain], ERROR_USAGE, @"invalid sftp parameters");
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return nil;
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}
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NSString *hostname = [theParams objectAtIndex:1];
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int port = [[theParams objectAtIndex:2] intValue];
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NSString *path = [theParams objectAtIndex:3];
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NSString *username = [theParams objectAtIndex:4];
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NSString *secret = [theParams objectAtIndex:5];
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NSString *keyfilePassphrase = [theParams count] > 6 ? [theParams objectAtIndex:6] : nil;
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if (![path hasPrefix:@"/"]) {
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path = [@"/~/" stringByAppendingString:path];
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}
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NSString *escapedPath = (NSString *)CFURLCreateStringByAddingPercentEscapes(NULL, (CFStringRef)path, NULL, (CFStringRef)@"!*'();:@&=+$,?%#[]", kCFStringEncodingUTF8);
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NSString *escapedUsername = (NSString *)CFURLCreateStringByAddingPercentEscapes(NULL, (CFStringRef)username, NULL, (CFStringRef)@"!*'();:@&=+$,?%#[]", kCFStringEncodingUTF8);
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NSURL *endpoint = [NSURL URLWithString:[NSString stringWithFormat:@"sftp://%@@%@:%d%@", escapedUsername, hostname, port, escapedPath]];
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ret = [[[Target alloc] initWithEndpoint:endpoint secret:secret passphrase:keyfilePassphrase] autorelease];
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} else if ([theTargetType isEqualToString:@"greenqloud"]
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|| [theTargetType isEqualToString:@"dreamobjects"]
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|| [theTargetType isEqualToString:@"googlecloudstorage"]
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|| [theTargetType isEqualToString:@"s3compatible"]) {
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if ([theParams count] != 4) {
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SETNSERROR([self errorDomain], ERROR_USAGE, @"invalid %@ parameters", theTargetType);
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return nil;
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}
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NSString *theAccessKey = [theParams objectAtIndex:1];
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NSString *theSecretKey = [theParams objectAtIndex:2];
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NSString *theBucketName = [theParams objectAtIndex:3];
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NSString *theHostname = nil;
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if ([theTargetType isEqualToString:@"greenqloud"]) {
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theHostname = @"s.greenqloud.com";
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} else if ([theTargetType isEqualToString:@"dreamobjects"]) {
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theHostname = @"objects.dreamhost.com";
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} else if ([theTargetType isEqualToString:@"googlecloudstorage"]) {
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theHostname = @"storage.googleapis.com";
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} else {
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SETNSERROR([self errorDomain], ERROR_USAGE, @"no hostname for target type: %@", theTargetType);
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return nil;
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}
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NSURL *endpoint = [NSURL URLWithString:[NSString stringWithFormat:@"https://%@@%@/%@", theAccessKey, theHostname, theBucketName]];
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ret = [[[Target alloc] initWithEndpoint:endpoint secret:theSecretKey passphrase:nil] autorelease];
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} else if ([theTargetType isEqualToString:@"googledrive"]) {
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if ([theParams count] != 3) {
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SETNSERROR([self errorDomain], ERROR_USAGE, @"invalid googledrive parameters");
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return nil;
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}
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NSString *theRefreshToken = [theParams objectAtIndex:1];
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NSString *thePath = [theParams objectAtIndex:2];
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NSString *escapedPath = (NSString *)CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault, (CFStringRef)thePath, CFSTR("/"), CFSTR("@?=&+"), kCFStringEncodingUTF8);
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[escapedPath autorelease];
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NSURL *endpoint = [NSURL URLWithString:[NSString stringWithFormat:@"googledrive://unknown_email_address@www.googleapis.com%@", escapedPath]];
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ret = [[[Target alloc] initWithEndpoint:endpoint secret:theRefreshToken passphrase:nil] autorelease];
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} else {
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SETNSERROR([self errorDomain], ERROR_USAGE, @"unknown target type: %@", theTargetType);
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return nil;
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}
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return ret;
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}
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- (AWSRegion *)awsRegionForAccessKey:(NSString *)theAccessKey secretKey:(NSString *)theSecretKey bucketName:(NSString *)theBucketName error:(NSError **)error {
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S3AuthorizationProvider *sap = [[[S3AuthorizationProvider alloc] initWithAccessKey:theAccessKey secretKey:theSecretKey] autorelease];
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NSURL *endpoint = [[AWSRegion usEast1] s3EndpointWithSSL:YES];
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S3Service *s3 = [[[S3Service alloc] initWithS3AuthorizationProvider:sap endpoint:endpoint useAmazonRRS:NO] autorelease];
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NSString *location = [s3 locationOfS3Bucket:theBucketName targetConnectionDelegate:nil error:error];
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if (location == nil) {
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return nil;
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}
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return [AWSRegion regionWithLocation:location];
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}
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- (BOOL)listComputers:(NSError **)error {
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NSArray *expandedTargetList = [self expandedTargetList:error];
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if (expandedTargetList == nil) {
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return NO;
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}
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NSMutableArray *ret = [NSMutableArray array];
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for (Target *theTarget in expandedTargetList) {
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NSError *myError = nil;
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HSLogDebug(@"getting backup sets for %@", theTarget);
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NSArray *backupSets = [BackupSet allBackupSetsForTarget:theTarget targetConnectionDelegate:nil error:&myError];
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if (backupSets == nil) {
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if ([myError isErrorWithDomain:[S3Service errorDomain] code:S3SERVICE_ERROR_AMAZON_ERROR] && [[[myError userInfo] objectForKey:@"HTTPStatusCode"] intValue] == 403) {
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HSLogError(@"access denied getting backup sets for %@", theTarget);
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} else {
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HSLogError(@"error getting backup sets for %@: %@", theTarget, myError);
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SETERRORFROMMYERROR;
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return nil;
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}
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} else {
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printf("target: %s\n", [[theTarget endpointDisplayName] UTF8String]);
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for (BackupSet *backupSet in backupSets) {
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printf("\tcomputer %s\n", [[backupSet computerUUID] UTF8String]);
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printf("\t\t%s (%s)\n", [[[backupSet userAndComputer] computerName] UTF8String], [[[backupSet userAndComputer] userName] UTF8String]);
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}
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}
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}
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return ret;
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}
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- (NSArray *)expandedTargetList:(NSError **)error {
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NSMutableArray *expandedTargetList = [NSMutableArray arrayWithObject:target];
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// if ([target targetType] == kTargetAWS
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// || [target targetType] == kTargetDreamObjects
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// || [target targetType] == kTargetGoogleCloudStorage
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// || [target targetType] == kTargetGreenQloud
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// || [target targetType] == kTargetS3Compatible) {
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// NSError *myError = nil;
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// NSArray *targets = [self expandedTargetsForS3Target:target error:&myError];
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// if (targets == nil) {
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// HSLogError(@"failed to expand target list for %@: %@", target, myError);
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// } else {
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// [expandedTargetList setArray:targets];
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// HSLogDebug(@"expandedTargetList is now: %@", expandedTargetList);
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// }
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// }
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return expandedTargetList;
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}
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- (NSArray *)expandedTargetsForS3Target:(Target *)theTarget error:(NSError **)error {
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S3Service *s3 = [theTarget s3:error];
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if (s3 == nil) {
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return nil;
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}
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NSArray *s3BucketNames = [s3 s3BucketNamesWithTargetConnectionDelegate:nil error:error];
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if (s3BucketNames == nil) {
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return nil;
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}
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HSLogDebug(@"s3BucketNames for %@: %@", theTarget, s3BucketNames);
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NSURL *originalEndpoint = [theTarget endpoint];
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NSMutableArray *ret = [NSMutableArray array];
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for (NSString *s3BucketName in s3BucketNames) {
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NSURL *endpoint = nil;
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if ([theTarget targetType] == kTargetAWS) {
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NSString *location = [s3 locationOfS3Bucket:s3BucketName targetConnectionDelegate:nil error:error];
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if (location == nil) {
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return nil;
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}
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AWSRegion *awsRegion = [AWSRegion regionWithLocation:location];
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HSLogDebug(@"awsRegion for s3BucketName %@: %@", s3BucketName, location);
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NSURL *s3Endpoint = [awsRegion s3EndpointWithSSL:YES];
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HSLogDebug(@"s3Endpoint: %@", s3Endpoint);
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endpoint = [NSURL URLWithString:[NSString stringWithFormat:@"https://%@@%@/%@", [originalEndpoint user], [s3Endpoint host], s3BucketName]];
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} else {
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endpoint = [NSURL URLWithString:[NSString stringWithFormat:@"%@://%@@%@/%@", [originalEndpoint scheme], [originalEndpoint user], [originalEndpoint host], s3BucketName]];
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}
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HSLogDebug(@"endpoint: %@", endpoint);
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Target *theTarget = [[[Target alloc] initWithEndpoint:endpoint secret:[theTarget secret:NULL] passphrase:[theTarget passphrase:NULL]] autorelease];
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[ret addObject:theTarget];
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}
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return ret;
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}
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- (BOOL)listBucketsForComputerUUID:(NSString *)theComputerUUID encryptionPassword:(NSString *)theEncryptionPassword error:(NSError **)error {
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NSArray *buckets = [Bucket bucketsWithTarget:target computerUUID:theComputerUUID encryptionPassword:theEncryptionPassword targetConnectionDelegate:nil error:error];
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if (buckets == nil) {
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return NO;
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}
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printf("target %s\n", [[target endpointDisplayName] UTF8String]);
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printf("computer %s\n", [theComputerUUID UTF8String]);
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for (Bucket *bucket in buckets) {
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printf("\tfolder %s\n", [[bucket localPath] UTF8String]);
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printf("\t\tuuid %s\n", [[bucket bucketUUID] UTF8String]);
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}
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return YES;
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}
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- (BOOL)restoreComputerUUID:(NSString *)theComputerUUID bucketUUID:(NSString *)theBucketUUID encryptionPassword:(NSString *)theEncryptionPassword restoreBytesPerSecond:(NSString *)theRestoreBytesPerSecond error:(NSError **)error {
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Bucket *myBucket = nil;
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NSArray *expandedTargetList = [self expandedTargetList:error];
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if (expandedTargetList == nil) {
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return NO;
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}
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for (Target *theTarget in expandedTargetList) {
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NSArray *buckets = [Bucket bucketsWithTarget:theTarget computerUUID:theComputerUUID encryptionPassword:theEncryptionPassword targetConnectionDelegate:nil error:error];
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if (buckets == nil) {
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return NO;
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}
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for (Bucket *bucket in buckets) {
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if ([[bucket bucketUUID] isEqualToString:theBucketUUID]) {
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myBucket = bucket;
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break;
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}
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}
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if (myBucket != nil) {
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break;
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}
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}
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if (myBucket == nil) {
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SETNSERROR([self errorDomain], ERROR_NOT_FOUND, @"folder %@ not found", theBucketUUID);
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return NO;
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}
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Repo *repo = [[[Repo alloc] initWithBucket:myBucket encryptionPassword:theEncryptionPassword targetUID:getuid() targetGID:getgid() loadExistingMutablePackFiles:NO targetConnectionDelegate:nil repoDelegate:nil error:error] autorelease];
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if (repo == nil) {
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return NO;
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}
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BlobKey *commitBlobKey = [repo headBlobKey:error];
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if (commitBlobKey == nil) {
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return NO;
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}
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Commit *commit = [repo commitForBlobKey:commitBlobKey dataSize:NULL error:error];
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if (commit == nil) {
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return NO;
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}
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NSString *destinationPath = [[[NSFileManager defaultManager] currentDirectoryPath] stringByAppendingPathComponent:[[myBucket localPath] lastPathComponent]];
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if ([[NSFileManager defaultManager] fileExistsAtPath:destinationPath]) {
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SETNSERROR([self errorDomain], -1, @"%@ already exists", destinationPath);
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return NO;
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}
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printf("target %s\n", [[[myBucket target] endpointDisplayName] UTF8String]);
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printf("computer %s\n", [[myBucket computerUUID] UTF8String]);
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printf("\nrestoring folder %s\n\n", [[myBucket localPath] UTF8String]);
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AWSRegion *region = [AWSRegion regionWithS3Endpoint:[target endpoint]];
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BOOL isGlacierDestination = [region supportsGlacier];
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if ([myBucket storageType] == StorageTypeGlacier && isGlacierDestination) {
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int bytesPerSecond = [theRestoreBytesPerSecond intValue];
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if (bytesPerSecond == 0) {
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SETNSERROR([self errorDomain], -1, @"invalid bytes_per_second %@", theRestoreBytesPerSecond);
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return NO;
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}
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GlacierRestorerParamSet *paramSet = [[[GlacierRestorerParamSet alloc] initWithBucket:myBucket
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encryptionPassword:theEncryptionPassword
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downloadBytesPerSecond:bytesPerSecond
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commitBlobKey:commitBlobKey
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rootItemName:[[myBucket localPath] lastPathComponent]
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treeVersion:CURRENT_TREE_VERSION
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treeIsCompressed:[[commit treeBlobKey] compressed]
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treeBlobKey:[commit treeBlobKey]
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nodeName:nil targetUID:getuid()
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targetGID:getgid()
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useTargetUIDAndGID:YES
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destinationPath:destinationPath
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logLevel:global_hslog_level] autorelease];
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[[[GlacierRestorer alloc] initWithGlacierRestorerParamSet:paramSet delegate:self] autorelease];
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} else if ([myBucket storageType] == StorageTypeS3Glacier && isGlacierDestination) {
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int bytesPerSecond = [theRestoreBytesPerSecond intValue];
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if (bytesPerSecond == 0) {
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SETNSERROR([self errorDomain], -1, @"invalid bytes_per_second %@", theRestoreBytesPerSecond);
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return NO;
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}
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S3GlacierRestorerParamSet *paramSet = [[[S3GlacierRestorerParamSet alloc] initWithBucket:myBucket
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encryptionPassword:theEncryptionPassword
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downloadBytesPerSecond:bytesPerSecond
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commitBlobKey:commitBlobKey
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rootItemName:[[myBucket localPath] lastPathComponent]
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treeVersion:CURRENT_TREE_VERSION
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treeIsCompressed:[[commit treeBlobKey] compressed]
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treeBlobKey:[commit treeBlobKey]
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nodeName:nil
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targetUID:getuid()
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targetGID:getgid()
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useTargetUIDAndGID:YES
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destinationPath:destinationPath
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logLevel:global_hslog_level] autorelease];
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[[[S3GlacierRestorer alloc] initWithS3GlacierRestorerParamSet:paramSet delegate:self] autorelease];
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} else {
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S3RestorerParamSet *paramSet = [[[S3RestorerParamSet alloc] initWithBucket:myBucket
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encryptionPassword:theEncryptionPassword
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commitBlobKey:commitBlobKey
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rootItemName:[[myBucket localPath] lastPathComponent]
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treeVersion:CURRENT_TREE_VERSION
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treeIsCompressed:[[commit treeBlobKey] compressed]
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treeBlobKey:[commit treeBlobKey]
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nodeName:nil
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targetUID:getuid()
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targetGID:getgid()
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useTargetUIDAndGID:YES
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destinationPath:destinationPath
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logLevel:global_hslog_level] autorelease];
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[[[S3Restorer alloc] initWithParamSet:paramSet delegate:self] autorelease];
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}
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return YES;
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}
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#pragma mark S3RestorerDelegate
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// Methods return YES if cancel is requested.
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|
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- (BOOL)s3RestorerMessageDidChange:(NSString *)message {
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printf("status: %s\n", [message UTF8String]);
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|
return NO;
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|
}
|
|
- (BOOL)s3RestorerBytesTransferredDidChange:(NSNumber *)theTransferred {
|
|
return NO;
|
|
}
|
|
- (BOOL)s3RestorerTotalBytesToTransferDidChange:(NSNumber *)theTotal {
|
|
return NO;
|
|
}
|
|
- (BOOL)s3RestorerErrorMessage:(NSString *)theErrorMessage didOccurForPath:(NSString *)thePath {
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|
printf("%s error: %s\n", [thePath UTF8String], [theErrorMessage UTF8String]);
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|
return NO;
|
|
}
|
|
- (BOOL)s3RestorerDidSucceed {
|
|
return NO;
|
|
}
|
|
- (BOOL)s3RestorerDidFail:(NSError *)error {
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|
printf("failed: %s\n", [[error localizedDescription] UTF8String]);
|
|
return NO;
|
|
}
|
|
|
|
|
|
#pragma mark S3GlacierRestorerDelegate
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|
- (BOOL)s3GlacierRestorerMessageDidChange:(NSString *)message {
|
|
printf("status: %s\n", [message UTF8String]);
|
|
return NO;
|
|
}
|
|
- (BOOL)s3GlacierRestorerBytesRequestedDidChange:(NSNumber *)theRequested {
|
|
return NO;
|
|
}
|
|
- (BOOL)s3GlacierRestorerTotalBytesToRequestDidChange:(NSNumber *)theMaxRequested {
|
|
return NO;
|
|
}
|
|
- (BOOL)s3GlacierRestorerDidFinishRequesting {
|
|
return NO;
|
|
}
|
|
- (BOOL)s3GlacierRestorerBytesTransferredDidChange:(NSNumber *)theTransferred {
|
|
return NO;
|
|
}
|
|
- (BOOL)s3GlacierRestorerTotalBytesToTransferDidChange:(NSNumber *)theTotal {
|
|
return NO;
|
|
}
|
|
- (BOOL)s3GlacierRestorerErrorMessage:(NSString *)theErrorMessage didOccurForPath:(NSString *)thePath {
|
|
printf("%s error: %s\n", [thePath UTF8String], [theErrorMessage UTF8String]);
|
|
return NO;
|
|
}
|
|
- (void)s3GlacierRestorerDidSucceed {
|
|
}
|
|
- (void)s3GlacierRestorerDidFail:(NSError *)error {
|
|
printf("failed: %s\n", [[error localizedDescription] UTF8String]);
|
|
}
|
|
|
|
|
|
#pragma mark GlacierRestorerDelegate
|
|
- (BOOL)glacierRestorerMessageDidChange:(NSString *)message {
|
|
printf("status: %s\n", [message UTF8String]);
|
|
return NO;
|
|
}
|
|
- (BOOL)glacierRestorerBytesRequestedDidChange:(NSNumber *)theRequested {
|
|
return NO;
|
|
}
|
|
- (BOOL)glacierRestorerTotalBytesToRequestDidChange:(NSNumber *)theMaxRequested {
|
|
return NO;
|
|
}
|
|
- (BOOL)glacierRestorerDidFinishRequesting {
|
|
return NO;
|
|
}
|
|
- (BOOL)glacierRestorerBytesTransferredDidChange:(NSNumber *)theTransferred {
|
|
return NO;
|
|
}
|
|
- (BOOL)glacierRestorerTotalBytesToTransferDidChange:(NSNumber *)theTotal {
|
|
return NO;
|
|
}
|
|
- (BOOL)glacierRestorerErrorMessage:(NSString *)theErrorMessage didOccurForPath:(NSString *)thePath {
|
|
printf("%s error: %s\n", [thePath UTF8String], [theErrorMessage UTF8String]);
|
|
return NO;
|
|
}
|
|
- (BOOL)glacierRestorerDidSucceed {
|
|
return NO;
|
|
}
|
|
- (BOOL)glacierRestorerDidFail:(NSError *)error {
|
|
printf("failed: %s\n", [[error localizedDescription] UTF8String]);
|
|
return NO;
|
|
}
|
|
|
|
@end
|