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70 lines
2.8 KiB
Objective-C
70 lines
2.8 KiB
Objective-C
//
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// BlobKeyIO.m
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//
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// Created by Stefan Reitshamer on 9/14/12.
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//
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//
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#import "BlobKeyIO.h"
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#import "BooleanIO.h"
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#import "StringIO.h"
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#import "IntegerIO.h"
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#import "StorageType.h"
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#import "BlobKey.h"
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#import "DateIO.h"
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@implementation BlobKeyIO
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+ (void)write:(BlobKey *)theBlobKey to:(NSMutableData *)data {
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[StringIO write:[theBlobKey sha1] to:data];
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[BooleanIO write:[theBlobKey stretchEncryptionKey] to:data];
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[IntegerIO writeUInt32:(uint32_t)[theBlobKey storageType] to:data];
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[StringIO write:[theBlobKey archiveId] to:data];
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[IntegerIO writeUInt64:[theBlobKey archiveSize] to:data];
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[DateIO write:[theBlobKey archiveUploadedDate] to:data];
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}
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+ (BOOL)write:(BlobKey *)theBlobKey to:(BufferedOutputStream *)os error:(NSError **)error {
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return [StringIO write:[theBlobKey sha1] to:os error:error]
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&& [BooleanIO write:[theBlobKey stretchEncryptionKey] to:os error:error]
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&& [IntegerIO writeUInt32:(uint32_t)[theBlobKey storageType] to:os error:error]
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&& [StringIO write:[theBlobKey archiveId] to:os error:error]
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&& [IntegerIO writeUInt64:[theBlobKey archiveSize] to:os error:error]
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&& [DateIO write:[theBlobKey archiveUploadedDate] to:os error:error];
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}
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+ (BOOL)read:(BlobKey **)theBlobKey from:(BufferedInputStream *)is treeVersion:(int)theTreeVersion compressed:(BOOL)isCompressed error:(NSError **)error {
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NSString *dataSHA1;
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BOOL stretchEncryptionKey = NO;
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StorageType storageType = StorageTypeS3;
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NSString *archiveId = nil;
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uint64_t archiveSize = 0;
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NSDate *archiveUploadedDate = nil;
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if (![StringIO read:&dataSHA1 from:is error:error]) {
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return NO;
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}
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if (theTreeVersion >= 14 && ![BooleanIO read:&stretchEncryptionKey from:is error:error]) {
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return NO;
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}
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if (theTreeVersion >= 17) {
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if (![IntegerIO readUInt32:&storageType from:is error:error]
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|| ![StringIO read:&archiveId from:is error:error]
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|| ![IntegerIO readUInt64:&archiveSize from:is error:error]
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|| ![DateIO read:&archiveUploadedDate from:is error:error]) {
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[self release];
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return NO;
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}
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}
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if (dataSHA1 == nil) {
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// This BlobKeyIO class has been writing nil BlobKeys as if they weren't nil,
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// and then reading the values in and creating bogus BlobKeys.
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// If the sha1 is nil, it must have been a nil BlobKey, so we return nil here.
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*theBlobKey = nil;
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} else {
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*theBlobKey = [[[BlobKey alloc] initWithStorageType:storageType archiveId:archiveId archiveSize:archiveSize archiveUploadedDate:archiveUploadedDate sha1:dataSHA1 stretchEncryptionKey:stretchEncryptionKey compressed:isCompressed error:error] autorelease];
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if (*theBlobKey == nil) {
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return NO;
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}
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}
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return YES;
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}
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@end
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