mirror of
https://github.com/samsonjs/arq_restore.git
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276 lines
14 KiB
Objective-C
276 lines
14 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 "SQS.h"
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#import "SignatureV2Provider.h"
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#import "AWSRegion.h"
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#import "NSString_extra.h"
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#import "AWSQueryRequest.h"
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#import "AWSQueryResponse.h"
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#import "CreateQueueResponse.h"
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#import "GetQueueAttributesResponse.h"
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#import "ReceiveMessageResponse.h"
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#import "ListQueuesResponse.h"
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@implementation SQS
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+ (NSString *)errorDomain {
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return @"SQSErrorDomain";
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}
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- (id)initWithAccessKey:(NSString *)theAccessKey secretKey:(NSString *)secret awsRegion:(AWSRegion *)theAWSRegion retryOnTransientError:(BOOL)retry {
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if (self = [super init]) {
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accessKey = [theAccessKey retain];
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sap = [[SignatureV2Provider alloc] initWithSecretKey:secret];
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awsRegion = [theAWSRegion retain];
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retryOnTransientError = retry;
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}
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return self;
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}
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- (void)dealloc {
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[accessKey release];
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[sap release];
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[awsRegion release];
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[super dealloc];
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}
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- (NSURL *)createQueueWithName:(NSString *)theName error:(NSError **)error {
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NSDateFormatter *formatter = [self dateFormatter];
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NSMutableString *str = [NSMutableString stringWithFormat:@"%@/?", [awsRegion sqsEndpointWithSSL:NO]];
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[str appendFormat:@"AWSAccessKeyId=%@", [accessKey stringByEscapingURLCharacters]];
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[str appendFormat:@"&Action=CreateQueue"];
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// [str appendFormat:@"&Expires=%ld", (NSUInteger)[[[NSDate date] dateByAddingTimeInterval:30.0] timeIntervalSince1970]];
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[str appendFormat:@"&QueueName=%@", [theName stringByEscapingURLCharacters]];
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[str appendFormat:@"&SignatureMethod=HmacSHA256"];
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[str appendFormat:@"&SignatureVersion=2"];
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[str appendFormat:@"&Timestamp=%@", [[formatter stringFromDate:[NSDate date]] stringByEscapingURLCharacters]];
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[str appendFormat:@"&Version=2011-10-01"];
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NSURL *url = [NSURL URLWithString:str];
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NSAssert(url != nil, @"url may not be nil!");
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NSString *signature = [sap signatureForHTTPMethod:@"GET" url:url];
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[str appendFormat:@"&Signature=%@", [signature stringByEscapingURLCharacters]];
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NSURL *urlWithSignature = [NSURL URLWithString:str];
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AWSQueryRequest *req = [[[AWSQueryRequest alloc] initWithMethod:@"GET" url:urlWithSignature retryOnTransientError:retryOnTransientError] autorelease];
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AWSQueryResponse *response = [req execute:error];
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if (response == nil) {
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return nil;
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}
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CreateQueueResponse *cqr = [[[CreateQueueResponse alloc] initWithData:[response body]] autorelease];
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NSURL *ret = [cqr queueURL];
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if (ret == nil) {
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SETNSERROR([SQS errorDomain], -1, @"QueueURL not found in CreateQueue response");
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}
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return ret;
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}
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- (NSString *)queueArnForQueueURL:(NSURL *)theURL error:(NSError **)error {
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NSDateFormatter *formatter = [self dateFormatter];
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NSMutableString *str = [NSMutableString stringWithFormat:@"%@?", [theURL description]];
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[str appendFormat:@"AWSAccessKeyId=%@", [accessKey stringByEscapingURLCharacters]];
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[str appendFormat:@"&Action=GetQueueAttributes"];
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[str appendFormat:@"&AttributeName.1=QueueArn"];
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// [str appendFormat:@"&Expires=%ld", (NSUInteger)[[[NSDate date] dateByAddingTimeInterval:30.0] timeIntervalSince1970]];
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[str appendFormat:@"&SignatureMethod=HmacSHA256"];
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[str appendFormat:@"&SignatureVersion=2"];
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[str appendFormat:@"&Timestamp=%@", [[formatter stringFromDate:[NSDate date]] stringByEscapingURLCharacters]];
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[str appendFormat:@"&Version=2009-02-01"];
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NSURL *url = [NSURL URLWithString:str];
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NSAssert(url != nil, @"url may not be nil!");
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NSString *signature = [sap signatureForHTTPMethod:@"GET" url:url];
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[str appendFormat:@"&Signature=%@", [signature stringByEscapingURLCharacters]];
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NSURL *urlWithSignature = [NSURL URLWithString:str];
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AWSQueryRequest *req = [[[AWSQueryRequest alloc] initWithMethod:@"GET" url:urlWithSignature retryOnTransientError:retryOnTransientError] autorelease];
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AWSQueryResponse *response = [req execute:error];
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if (response == nil) {
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return nil;
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}
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GetQueueAttributesResponse *gqar = [[[GetQueueAttributesResponse alloc] initWithData:[response body]] autorelease];
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NSString *ret = [gqar queueArn];
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if (ret == nil) {
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SETNSERROR([SQS errorDomain], -1, @"QueueArn not found in GetQueueAttributes response");
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}
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return ret;
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}
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- (BOOL)setSendMessagePermissionToQueueURL:(NSURL *)theQueueURL queueArn:(NSString *)theQueueArn forSourceArn:(NSString *)theSourceArn error:(NSError **)error {
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NSString *theQueueName = [[theQueueArn componentsSeparatedByString:@":"] lastObject];
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NSString *policy = [NSString stringWithFormat:@"{\"Statement\": [{\"Sid\": \"%@-policy\", \"Effect\": \"Allow\", \"Principal\": {\"AWS\": \"*\"}, \"Action\": \"sqs:SendMessage\", \"Resource\": \"%@\", \"Condition\": { \"ArnEquals\": { \"aws:sourceArn\": \"%@\" } } }]}", theQueueName, theQueueArn, theSourceArn];
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HSLogDebug(@"policy = %@", policy);
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NSString *escapedPolicy = [(NSString *)CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault, (CFStringRef)policy, NULL, CFSTR("?=&+?:,*"), kCFStringEncodingUTF8) autorelease];
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NSDateFormatter *formatter = [self dateFormatter];
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NSMutableString *str = [NSMutableString stringWithFormat:@"%@?", [theQueueURL description]];
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[str appendFormat:@"AWSAccessKeyId=%@", [accessKey stringByEscapingURLCharacters]];
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[str appendFormat:@"&Action=SetQueueAttributes"];
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[str appendFormat:@"&Attribute.Name=Policy"];
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[str appendFormat:@"&Attribute.Value=%@", escapedPolicy];
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[str appendFormat:@"&SignatureMethod=HmacSHA256"];
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[str appendFormat:@"&SignatureVersion=2"];
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[str appendFormat:@"&Timestamp=%@", [[formatter stringFromDate:[NSDate date]] stringByEscapingURLCharacters]];
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[str appendFormat:@"&Version=2009-02-01"];
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NSURL *url = [NSURL URLWithString:str];
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NSAssert(url != nil, @"url may not be nil!");
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NSString *signature = [sap signatureForHTTPMethod:@"GET" url:url];
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[str appendFormat:@"&Signature=%@", [signature stringByEscapingURLCharacters]];
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NSURL *urlWithSignature = [NSURL URLWithString:str];
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AWSQueryRequest *req = [[[AWSQueryRequest alloc] initWithMethod:@"GET" url:urlWithSignature retryOnTransientError:retryOnTransientError] autorelease];
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AWSQueryResponse *response = [req execute:error];
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if (response == nil) {
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return NO;
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}
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return YES;
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}
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- (ReceiveMessageResponse *)receiveMessagesForQueueURL:(NSURL *)theURL maxMessages:(NSUInteger)theMaxMessages error:(NSError **)error {
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if (theMaxMessages > 10) {
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// SQS only accepts a value between 1 and 10.
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theMaxMessages = 10;
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}
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NSDateFormatter *formatter = [self dateFormatter];
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NSMutableString *str = [NSMutableString stringWithFormat:@"%@?", [theURL description]];
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[str appendFormat:@"AWSAccessKeyId=%@", [accessKey stringByEscapingURLCharacters]];
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[str appendFormat:@"&Action=ReceiveMessage"];
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[str appendFormat:@"&AttributeName=All"];
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[str appendFormat:@"&MaxNumberOfMessages=%lu", (unsigned long)theMaxMessages];
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[str appendFormat:@"&SignatureMethod=HmacSHA256"];
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[str appendFormat:@"&SignatureVersion=2"];
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[str appendFormat:@"&Timestamp=%@", [[formatter stringFromDate:[NSDate date]] stringByEscapingURLCharacters]];
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[str appendFormat:@"&Version=2009-02-01"];
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NSURL *url = [NSURL URLWithString:str];
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NSAssert(url != nil, @"url may not be nil!");
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NSString *signature = [sap signatureForHTTPMethod:@"GET" url:url];
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[str appendFormat:@"&Signature=%@", [signature stringByEscapingURLCharacters]];
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NSURL *urlWithSignature = [NSURL URLWithString:str];
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AWSQueryRequest *req = [[[AWSQueryRequest alloc] initWithMethod:@"GET" url:urlWithSignature retryOnTransientError:retryOnTransientError] autorelease];
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AWSQueryResponse *response = [req execute:error];
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if (response == nil) {
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return nil;
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}
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ReceiveMessageResponse *msg = [[[ReceiveMessageResponse alloc] initWithQueueURL:theURL data:[response body]] autorelease];
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return msg;
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}
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- (BOOL)deleteMessageWithQueueURL:(NSURL *)theURL receiptHandle:(NSString *)theReceiptHandle error:(NSError **)error {
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NSDateFormatter *formatter = [self dateFormatter];
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NSMutableString *str = [NSMutableString stringWithFormat:@"%@?", [theURL description]];
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[str appendFormat:@"AWSAccessKeyId=%@", [accessKey stringByEscapingURLCharacters]];
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[str appendFormat:@"&Action=DeleteMessage"];
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[str appendFormat:@"&ReceiptHandle=%@", [theReceiptHandle stringByEscapingURLCharacters]];
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[str appendFormat:@"&SignatureMethod=HmacSHA256"];
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[str appendFormat:@"&SignatureVersion=2"];
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[str appendFormat:@"&Timestamp=%@", [[formatter stringFromDate:[NSDate date]] stringByEscapingURLCharacters]];
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[str appendFormat:@"&Version=2009-02-01"];
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NSURL *url = [NSURL URLWithString:str];
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NSAssert(url != nil, @"url may not be nil!");
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NSString *signature = [sap signatureForHTTPMethod:@"GET" url:url];
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[str appendFormat:@"&Signature=%@", [signature stringByEscapingURLCharacters]];
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NSURL *urlWithSignature = [NSURL URLWithString:str];
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AWSQueryRequest *req = [[[AWSQueryRequest alloc] initWithMethod:@"GET" url:urlWithSignature retryOnTransientError:retryOnTransientError] autorelease];
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AWSQueryResponse *response = [req execute:error];
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if (response == nil) {
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return NO;
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}
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return YES;
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}
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- (NSArray *)queueURLs:(NSError **)error {
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//FIXME: This only returns up to 1000 queues.
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NSDateFormatter *formatter = [self dateFormatter];
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NSMutableString *str = [NSMutableString stringWithFormat:@"%@/?", [awsRegion sqsEndpointWithSSL:NO]];
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[str appendFormat:@"AWSAccessKeyId=%@", [accessKey stringByEscapingURLCharacters]];
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[str appendFormat:@"&Action=ListQueues"];
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[str appendFormat:@"&SignatureMethod=HmacSHA256"];
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[str appendFormat:@"&SignatureVersion=2"];
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[str appendFormat:@"&Timestamp=%@", [[formatter stringFromDate:[NSDate date]] stringByEscapingURLCharacters]];
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[str appendFormat:@"&Version=2011-10-01"];
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NSURL *url = [NSURL URLWithString:str];
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NSAssert(url != nil, @"url may not be nil!");
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NSString *signature = [sap signatureForHTTPMethod:@"GET" url:url];
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[str appendFormat:@"&Signature=%@", [signature stringByEscapingURLCharacters]];
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NSURL *urlWithSignature = [NSURL URLWithString:str];
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AWSQueryRequest *req = [[[AWSQueryRequest alloc] initWithMethod:@"GET" url:urlWithSignature retryOnTransientError:retryOnTransientError] autorelease];
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AWSQueryResponse *response = [req execute:error];
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if (response == nil) {
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return nil;
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}
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ListQueuesResponse *msg = [[[ListQueuesResponse alloc] initWithData:[response body]] autorelease];
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return [msg queueURLs];
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}
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- (BOOL)deleteQueue:(NSURL *)theQueueURL error:(NSError **)error {
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NSDateFormatter *formatter = [self dateFormatter];
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NSMutableString *str = [NSMutableString stringWithFormat:@"%@?", [theQueueURL description]];
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[str appendFormat:@"AWSAccessKeyId=%@", [accessKey stringByEscapingURLCharacters]];
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[str appendFormat:@"&Action=DeleteQueue"];
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[str appendFormat:@"&SignatureMethod=HmacSHA256"];
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[str appendFormat:@"&SignatureVersion=2"];
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[str appendFormat:@"&Timestamp=%@", [[formatter stringFromDate:[NSDate date]] stringByEscapingURLCharacters]];
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[str appendFormat:@"&Version=2009-02-01"];
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NSURL *url = [NSURL URLWithString:str];
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NSAssert(url != nil, @"url may not be nil!");
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NSString *signature = [sap signatureForHTTPMethod:@"GET" url:url];
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[str appendFormat:@"&Signature=%@", [signature stringByEscapingURLCharacters]];
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NSURL *urlWithSignature = [NSURL URLWithString:str];
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AWSQueryRequest *req = [[[AWSQueryRequest alloc] initWithMethod:@"GET" url:urlWithSignature retryOnTransientError:retryOnTransientError] autorelease];
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AWSQueryResponse *response = [req execute:error];
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if (response == nil) {
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return NO;
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}
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return YES;
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}
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- (NSDateFormatter*)dateFormatter {
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NSDateFormatter *formatter = [[[NSDateFormatter alloc] init] autorelease];
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[formatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss'Z'"];
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[formatter setTimeZone:[NSTimeZone timeZoneForSecondsFromGMT:0]];
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NSLocale *usLocale = [[[NSLocale alloc] initWithLocaleIdentifier:@"en_US"] autorelease];
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if (usLocale != nil) {
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[formatter setLocale:usLocale];
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} else {
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HSLogWarn(@"no en_US locale installed");
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}
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return formatter;
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}
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@end
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