143 lines
5.0 KiB
Objective-C
143 lines
5.0 KiB
Objective-C
//
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// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
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//
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#import "OWSFailedAttachmentDownloadsJob.h"
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#import "OWSPrimaryStorage.h"
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#import "TSAttachmentPointer.h"
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#import <YapDatabase/YapDatabase.h>
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#import <YapDatabase/YapDatabaseQuery.h>
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#import <YapDatabase/YapDatabaseSecondaryIndex.h>
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#import <SignalUtilitiesKit/SignalUtilitiesKit-Swift.h>
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NS_ASSUME_NONNULL_BEGIN
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static NSString *const OWSFailedAttachmentDownloadsJobAttachmentStateColumn = @"state";
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static NSString *const OWSFailedAttachmentDownloadsJobAttachmentStateIndex = @"index_attachment_downloads_on_state";
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@interface OWSFailedAttachmentDownloadsJob ()
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@property (nonatomic, readonly) OWSPrimaryStorage *primaryStorage;
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@end
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#pragma mark -
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@implementation OWSFailedAttachmentDownloadsJob
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- (instancetype)initWithPrimaryStorage:(OWSPrimaryStorage *)primaryStorage
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{
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self = [super init];
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if (!self) {
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return self;
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}
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_primaryStorage = primaryStorage;
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return self;
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}
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- (NSArray<NSString *> *)fetchAttemptingOutAttachmentIdsWithTransaction:
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(YapDatabaseReadWriteTransaction *_Nonnull)transaction
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{
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OWSAssertDebug(transaction);
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NSMutableArray<NSString *> *attachmentIds = [NSMutableArray new];
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NSString *formattedString = [NSString stringWithFormat:@"WHERE %@ != %d",
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OWSFailedAttachmentDownloadsJobAttachmentStateColumn,
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(int)TSAttachmentPointerStateFailed];
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YapDatabaseQuery *query = [YapDatabaseQuery queryWithFormat:formattedString];
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[[transaction ext:OWSFailedAttachmentDownloadsJobAttachmentStateIndex]
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enumerateKeysMatchingQuery:query
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usingBlock:^void(NSString *collection, NSString *key, BOOL *stop) {
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[attachmentIds addObject:key];
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}];
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return [attachmentIds copy];
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}
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- (void)enumerateAttemptingOutAttachmentsWithBlock:(void (^_Nonnull)(TSAttachmentPointer *attachment))block
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transaction:(YapDatabaseReadWriteTransaction *_Nonnull)transaction
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{
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OWSAssertDebug(transaction);
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// Since we can't directly mutate the enumerated attachments, we store only their ids in hopes
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// of saving a little memory and then enumerate the (larger) TSAttachment objects one at a time.
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for (NSString *attachmentId in [self fetchAttemptingOutAttachmentIdsWithTransaction:transaction]) {
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TSAttachmentPointer *_Nullable attachment =
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[TSAttachmentPointer fetchObjectWithUniqueID:attachmentId transaction:transaction];
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if ([attachment isKindOfClass:[TSAttachmentPointer class]]) {
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block(attachment);
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} else {
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OWSLogError(@"unexpected object: %@", attachment);
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}
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}
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}
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- (void)run
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{
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__block uint count = 0;
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[LKStorage writeSyncWithBlock:^(YapDatabaseReadWriteTransaction *_Nonnull transaction) {
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[self enumerateAttemptingOutAttachmentsWithBlock:^(TSAttachmentPointer *attachment) {
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// sanity check
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if (attachment.state != TSAttachmentPointerStateFailed) {
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attachment.state = TSAttachmentPointerStateFailed;
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[attachment saveWithTransaction:transaction];
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count++;
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}
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}
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transaction:transaction];
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}];
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OWSLogDebug(@"Marked %u attachments as unsent", count);
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}
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#pragma mark - YapDatabaseExtension
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+ (YapDatabaseSecondaryIndex *)indexDatabaseExtension
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{
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YapDatabaseSecondaryIndexSetup *setup = [YapDatabaseSecondaryIndexSetup new];
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[setup addColumn:OWSFailedAttachmentDownloadsJobAttachmentStateColumn
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withType:YapDatabaseSecondaryIndexTypeInteger];
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YapDatabaseSecondaryIndexHandler *handler =
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[YapDatabaseSecondaryIndexHandler withObjectBlock:^(YapDatabaseReadTransaction *transaction,
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NSMutableDictionary *dict,
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NSString *collection,
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NSString *key,
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id object) {
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if (![object isKindOfClass:[TSAttachmentPointer class]]) {
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return;
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}
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TSAttachmentPointer *attachment = (TSAttachmentPointer *)object;
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dict[OWSFailedAttachmentDownloadsJobAttachmentStateColumn] = @(attachment.state);
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}];
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return [[YapDatabaseSecondaryIndex alloc] initWithSetup:setup handler:handler versionTag:nil];
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}
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#ifdef DEBUG
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// Useful for tests, don't use in app startup path because it's slow.
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- (void)blockingRegisterDatabaseExtensions
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{
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[self.primaryStorage registerExtension:[self.class indexDatabaseExtension]
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withName:OWSFailedAttachmentDownloadsJobAttachmentStateIndex];
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}
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#endif
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+ (NSString *)databaseExtensionName
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{
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return OWSFailedAttachmentDownloadsJobAttachmentStateIndex;
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}
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+ (void)asyncRegisterDatabaseExtensionsWithPrimaryStorage:(OWSStorage *)storage
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{
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[storage asyncRegisterExtension:[self indexDatabaseExtension]
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withName:OWSFailedAttachmentDownloadsJobAttachmentStateIndex];
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}
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@end
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NS_ASSUME_NONNULL_END
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