520 lines
22 KiB
Objective-C
520 lines
22 KiB
Objective-C
//
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// Copyright (c) 2020 Open Whisper Systems. All rights reserved.
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//
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#import "TSDatabaseView.h"
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#import "OWSDevice.h"
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#import "OWSReadTracking.h"
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#import "TSAttachment.h"
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#import "TSAttachmentPointer.h"
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#import "TSIncomingMessage.h"
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#import "TSInvalidIdentityKeyErrorMessage.h"
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#import "TSOutgoingMessage.h"
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#import "TSThread.h"
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#import <SignalServiceKit/SignalServiceKit-Swift.h>
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#import <YapDatabase/YapDatabaseAutoView.h>
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#import <YapDatabase/YapDatabaseCrossProcessNotification.h>
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#import <YapDatabase/YapDatabaseViewTypes.h>
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NS_ASSUME_NONNULL_BEGIN
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NSString *const TSInboxGroup = @"TSInboxGroup";
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NSString *const TSArchiveGroup = @"TSArchiveGroup";
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NSString *const TSUnreadIncomingMessagesGroup = @"TSUnreadIncomingMessagesGroup";
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NSString *const TSSecondaryDevicesGroup = @"TSSecondaryDevicesGroup";
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// YAPDB BUG: when changing from non-persistent to persistent view, we had to rename TSThreadDatabaseViewExtensionName
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// -> TSThreadDatabaseViewExtensionName2 to work around https://github.com/yapstudios/YapDatabase/issues/324
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NSString *const TSThreadDatabaseViewExtensionName = @"TSThreadDatabaseViewExtensionName2";
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// We sort interactions by a monotonically increasing counter.
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//
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// Previously we sorted the interactions database by local timestamp, which was problematic if the local clock changed.
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// We need to maintain the legacy extension for purposes of migration.
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//
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// The "Legacy" sorting extension name constant has the same value as always, so that it won't need to be rebuilt, while
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// the "Modern" sorting extension name constant has the same symbol name that we've always used for sorting
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// interactions, so that the callsites won't need to change.
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NSString *const TSMessageDatabaseViewExtensionName = @"TSMessageDatabaseViewExtensionName_Monotonic";
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NSString *const TSMessageDatabaseViewExtensionName_Legacy = @"TSMessageDatabaseViewExtensionName";
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NSString *const TSThreadOutgoingMessageDatabaseViewExtensionName = @"TSThreadOutgoingMessageDatabaseViewExtensionName";
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NSString *const TSThreadSpecialMessagesDatabaseViewExtensionName = @"TSThreadSpecialMessagesDatabaseViewExtensionName";
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NSString *const TSIncompleteViewOnceMessagesDatabaseViewExtensionName
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= @"TSIncompleteViewOnceMessagesDatabaseViewExtensionName";
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NSString *const TSIncompleteViewOnceMessagesGroup = @"TSIncompleteViewOnceMessagesGroup";
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NSString *const TSLazyRestoreAttachmentsDatabaseViewExtensionName
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= @"TSLazyRestoreAttachmentsDatabaseViewExtensionName";
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NSString *const TSLazyRestoreAttachmentsGroup = @"TSLazyRestoreAttachmentsGroup";
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NSString *const TSInteractionsBySortIdDatabaseViewExtensionName = @"TSInteractionsBySortIdDatabaseViewExtensionName";
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NSString *const TSInteractionsBySortIdGroup = @"TSInteractionsBySortIdGroup";
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@interface OWSStorage (TSDatabaseView)
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- (BOOL)registerExtension:(YapDatabaseExtension *)extension withName:(NSString *)extensionName;
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@end
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#pragma mark -
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@implementation TSDatabaseView
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+ (void)registerCrossProcessNotifier:(OWSStorage *)storage
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{
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OWSAssertDebug(storage);
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// I don't think the identifier and name of this extension matter for our purposes,
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// so long as they don't conflict with any other extension names.
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YapDatabaseExtension *extension =
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[[YapDatabaseCrossProcessNotification alloc] initWithIdentifier:@"SignalCrossProcessNotifier"];
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[storage registerExtension:extension withName:@"SignalCrossProcessNotifier"];
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}
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+ (void)registerMessageDatabaseViewWithName:(NSString *)viewName
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viewGrouping:(YapDatabaseViewGrouping *)viewGrouping
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version:(NSString *)version
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storage:(OWSStorage *)storage
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{
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OWSAssertIsOnMainThread();
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OWSAssertDebug(viewName.length > 0);
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OWSAssertDebug((viewGrouping));
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OWSAssertDebug(storage);
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YapDatabaseView *existingView = [storage registeredExtension:viewName];
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if (existingView) {
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OWSFailDebug(@"Registered database view twice: %@", viewName);
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return;
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}
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YapDatabaseViewSorting *viewSorting = [self messagesSorting];
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YapDatabaseViewOptions *options = [[YapDatabaseViewOptions alloc] init];
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options.isPersistent = YES;
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options.allowedCollections =
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[[YapWhitelistBlacklist alloc] initWithWhitelist:[NSSet setWithObject:[TSInteraction collection]]];
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YapDatabaseView *view = [[YapDatabaseAutoView alloc] initWithGrouping:viewGrouping
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sorting:viewSorting
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versionTag:version
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options:options];
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[storage asyncRegisterExtension:view withName:viewName];
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}
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+ (void)asyncRegisterThreadSpecialMessagesDatabaseView:(OWSStorage *)storage
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{
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YapDatabaseViewGrouping *viewGrouping = [YapDatabaseViewGrouping withObjectBlock:^NSString *(
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YapDatabaseReadTransaction *transaction, NSString *collection, NSString *key, id object) {
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if (![object isKindOfClass:[TSInteraction class]]) {
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OWSFailDebug(@"Unexpected entity %@ in collection: %@", [object class], collection);
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return nil;
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}
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TSInteraction *interaction = (TSInteraction *)object;
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if (interaction.isSpecialMessage) {
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return interaction.uniqueThreadId;
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}
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return nil;
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}];
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[self registerMessageDatabaseViewWithName:TSThreadSpecialMessagesDatabaseViewExtensionName
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viewGrouping:viewGrouping
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version:@"2"
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storage:storage];
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}
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+ (void)asyncRegisterIncompleteViewOnceMessagesDatabaseView:(OWSStorage *)storage
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{
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YapDatabaseViewGrouping *viewGrouping = [YapDatabaseViewGrouping withObjectBlock:^NSString *(
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YapDatabaseReadTransaction *transaction, NSString *collection, NSString *key, id object) {
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if (![object isKindOfClass:[TSInteraction class]]) {
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OWSFailDebug(@"Unexpected entity %@ in collection: %@", [object class], collection);
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return nil;
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}
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if (![object isKindOfClass:[TSMessage class]]) {
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return nil;
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}
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TSMessage *message = (TSMessage *)object;
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if (message.isViewOnceMessage && !message.isViewOnceComplete) {
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return TSIncompleteViewOnceMessagesGroup;
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} else {
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return nil;
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}
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}];
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[self registerMessageDatabaseViewWithName:TSIncompleteViewOnceMessagesDatabaseViewExtensionName
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viewGrouping:viewGrouping
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version:@"1"
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storage:storage];
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}
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+ (void)asyncRegisterLegacyThreadInteractionsDatabaseView:(OWSStorage *)storage
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{
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OWSAssertIsOnMainThread();
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OWSAssert(storage);
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YapDatabaseView *existingView = [storage registeredExtension:TSMessageDatabaseViewExtensionName_Legacy];
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if (existingView) {
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OWSFailDebug(@"Registered database view twice: %@", TSMessageDatabaseViewExtensionName_Legacy);
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return;
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}
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YapDatabaseViewGrouping *viewGrouping = [YapDatabaseViewGrouping withObjectBlock:^NSString *(
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YapDatabaseReadTransaction *transaction, NSString *collection, NSString *key, id object) {
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if (![object isKindOfClass:[TSInteraction class]]) {
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OWSFailDebug(@"%@ Unexpected entity %@ in collection: %@", self.logTag, [object class], collection);
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return nil;
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}
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TSInteraction *interaction = (TSInteraction *)object;
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return interaction.uniqueThreadId;
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}];
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YapDatabaseViewSorting *viewSorting =
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[YapDatabaseViewSorting withObjectBlock:^NSComparisonResult(YapDatabaseReadTransaction *transaction,
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NSString *group,
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NSString *collection1,
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NSString *key1,
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id object1,
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NSString *collection2,
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NSString *key2,
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id object2) {
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if (![object1 isKindOfClass:[TSInteraction class]]) {
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OWSFailDebug(@"%@ Unexpected entity %@ in collection: %@", self.logTag, [object1 class], collection1);
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return NSOrderedSame;
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}
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if (![object2 isKindOfClass:[TSInteraction class]]) {
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OWSFailDebug(@"%@ Unexpected entity %@ in collection: %@", self.logTag, [object2 class], collection2);
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return NSOrderedSame;
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}
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TSInteraction *interaction1 = (TSInteraction *)object1;
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TSInteraction *interaction2 = (TSInteraction *)object2;
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// Legit usage of timestampForLegacySorting since we're registering the
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// legacy extension
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uint64_t timestamp1 = interaction1.timestampForLegacySorting;
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uint64_t timestamp2 = interaction2.timestampForLegacySorting;
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if (timestamp1 > timestamp2) {
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return NSOrderedDescending;
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} else if (timestamp1 < timestamp2) {
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return NSOrderedAscending;
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} else {
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return NSOrderedSame;
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}
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}];
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YapDatabaseViewOptions *options = [YapDatabaseViewOptions new];
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options.isPersistent = YES;
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options.allowedCollections =
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[[YapWhitelistBlacklist alloc] initWithWhitelist:[NSSet setWithObject:[TSInteraction collection]]];
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YapDatabaseView *view =
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[[YapDatabaseAutoView alloc] initWithGrouping:viewGrouping sorting:viewSorting versionTag:@"1" options:options];
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[storage asyncRegisterExtension:view withName:TSMessageDatabaseViewExtensionName_Legacy];
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}
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+ (void)asyncRegisterInteractionsBySortIdDatabaseView:(OWSStorage *)storage
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{
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OWSAssertIsOnMainThread();
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OWSAssert(storage);
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YapDatabaseView *existingView = [storage registeredExtension:TSInteractionsBySortIdDatabaseViewExtensionName];
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if (existingView) {
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OWSFailDebug(@"Registered database view twice: %@", TSInteractionsBySortIdDatabaseViewExtensionName);
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return;
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}
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YapDatabaseViewGrouping *viewGrouping = [YapDatabaseViewGrouping withObjectBlock:^NSString *(
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YapDatabaseReadTransaction *transaction, NSString *collection, NSString *key, id object) {
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if (![object isKindOfClass:[TSInteraction class]]) {
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OWSFailDebug(@"%@ Unexpected entity %@ in collection: %@", self.logTag, [object class], collection);
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return nil;
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}
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return TSInteractionsBySortIdGroup;
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}];
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YapDatabaseViewSorting *viewSorting =
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[YapDatabaseViewSorting withObjectBlock:^NSComparisonResult(YapDatabaseReadTransaction *transaction,
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NSString *group,
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NSString *collection1,
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NSString *key1,
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id object1,
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NSString *collection2,
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NSString *key2,
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id object2) {
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if (![object1 isKindOfClass:[TSInteraction class]]) {
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OWSFailDebug(@"%@ Unexpected entity %@ in collection: %@", self.logTag, [object1 class], collection1);
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return NSOrderedSame;
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}
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if (![object2 isKindOfClass:[TSInteraction class]]) {
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OWSFailDebug(@"%@ Unexpected entity %@ in collection: %@", self.logTag, [object2 class], collection2);
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return NSOrderedSame;
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}
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TSInteraction *interaction1 = (TSInteraction *)object1;
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TSInteraction *interaction2 = (TSInteraction *)object2;
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uint64_t sortId1 = interaction1.sortId;
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uint64_t sortId2 = interaction2.sortId;
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uint64_t timestamp1 = interaction1.timestampForLegacySorting;
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uint64_t timestamp2 = interaction2.timestampForLegacySorting;
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if (sortId1 > sortId2) {
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return NSOrderedDescending;
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} else if (sortId1 < sortId2) {
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return NSOrderedAscending;
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} else {
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// If sort ids are equal, use timestamp to restore correct ordering.
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if (timestamp1 > timestamp2) {
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return NSOrderedDescending;
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} else if (timestamp1 < timestamp2) {
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return NSOrderedAscending;
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} else {
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// Ensure sort is stable if sort ids are equal.
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return [interaction1.uniqueId compare:interaction2.uniqueId];
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}
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}
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}];
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YapDatabaseViewOptions *options = [YapDatabaseViewOptions new];
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options.isPersistent = YES;
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options.allowedCollections =
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[[YapWhitelistBlacklist alloc] initWithWhitelist:[NSSet setWithObject:[TSInteraction collection]]];
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YapDatabaseView *view =
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[[YapDatabaseAutoView alloc] initWithGrouping:viewGrouping sorting:viewSorting versionTag:@"1" options:options];
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[storage asyncRegisterExtension:view withName:TSInteractionsBySortIdDatabaseViewExtensionName];
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}
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+ (void)asyncRegisterThreadInteractionsDatabaseView:(OWSStorage *)storage
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{
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YapDatabaseViewGrouping *viewGrouping = [YapDatabaseViewGrouping withObjectBlock:^NSString *(
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YapDatabaseReadTransaction *transaction, NSString *collection, NSString *key, id object) {
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if (![object isKindOfClass:[TSInteraction class]]) {
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OWSFailDebug(@"Unexpected entity %@ in collection: %@", [object class], collection);
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return nil;
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}
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TSInteraction *interaction = (TSInteraction *)object;
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return interaction.uniqueThreadId;
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}];
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[self registerMessageDatabaseViewWithName:TSMessageDatabaseViewExtensionName
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viewGrouping:viewGrouping
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version:@"2"
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storage:storage];
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}
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+ (void)asyncRegisterThreadOutgoingMessagesDatabaseView:(OWSStorage *)storage
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{
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YapDatabaseViewGrouping *viewGrouping = [YapDatabaseViewGrouping withObjectBlock:^NSString *(
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YapDatabaseReadTransaction *transaction, NSString *collection, NSString *key, id object) {
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if ([object isKindOfClass:[TSOutgoingMessage class]]) {
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return ((TSOutgoingMessage *)object).uniqueThreadId;
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}
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return nil;
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}];
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[self registerMessageDatabaseViewWithName:TSThreadOutgoingMessageDatabaseViewExtensionName
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viewGrouping:viewGrouping
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version:@"3"
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storage:storage];
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}
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+ (void)asyncRegisterThreadDatabaseView:(OWSStorage *)storage
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{
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YapDatabaseView *threadView = [storage registeredExtension:TSThreadDatabaseViewExtensionName];
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if (threadView) {
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OWSFailDebug(@"Registered database view twice: %@", TSThreadDatabaseViewExtensionName);
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return;
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}
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YapDatabaseViewGrouping *viewGrouping = [YapDatabaseViewGrouping withObjectBlock:^NSString *(
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YapDatabaseReadTransaction *transaction, NSString *collection, NSString *key, id object) {
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if (![object isKindOfClass:[TSThread class]]) {
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OWSFailDebug(@"Unexpected entity %@ in collection: %@", [object class], collection);
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return nil;
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}
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TSThread *thread = (TSThread *)object;
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if (thread.shouldThreadBeVisible) {
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// Do nothing; we never hide threads that have ever had a message.
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} else {
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YapDatabaseViewTransaction *viewTransaction = [transaction ext:TSMessageDatabaseViewExtensionName];
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OWSAssertDebug(viewTransaction);
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NSUInteger threadMessageCount = [viewTransaction numberOfItemsInGroup:thread.uniqueId];
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if (threadMessageCount < 1) {
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OWSAssertDebug(!thread.shouldThreadBeVisible);
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return nil;
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}
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}
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return thread.isArchived ? TSArchiveGroup : TSInboxGroup;
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}];
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YapDatabaseViewSorting *viewSorting = [self threadSorting];
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YapDatabaseViewOptions *options = [[YapDatabaseViewOptions alloc] init];
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options.isPersistent = YES;
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options.allowedCollections =
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[[YapWhitelistBlacklist alloc] initWithWhitelist:[NSSet setWithObject:[TSThread collection]]];
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YapDatabaseView *databaseView =
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[[YapDatabaseAutoView alloc] initWithGrouping:viewGrouping sorting:viewSorting versionTag:@"4" options:options];
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[storage asyncRegisterExtension:databaseView withName:TSThreadDatabaseViewExtensionName];
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}
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+ (YapDatabaseViewSorting *)threadSorting {
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return [YapDatabaseViewSorting withObjectBlock:^NSComparisonResult(YapDatabaseReadTransaction *transaction,
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NSString *group,
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NSString *collection1,
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NSString *key1,
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id object1,
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NSString *collection2,
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NSString *key2,
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id object2) {
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if (![object1 isKindOfClass:[TSThread class]]) {
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OWSFailDebug(@"Unexpected entity %@ in collection: %@", [object1 class], collection1);
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return NSOrderedSame;
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}
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if (![object2 isKindOfClass:[TSThread class]]) {
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OWSFailDebug(@"Unexpected entity %@ in collection: %@", [object2 class], collection2);
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return NSOrderedSame;
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}
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TSThread *thread1 = (TSThread *)object1;
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TSThread *thread2 = (TSThread *)object2;
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if ([group isEqualToString:TSArchiveGroup] || [group isEqualToString:TSInboxGroup]) {
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NSDate *longAgo = [NSDate dateWithTimeIntervalSince1970:0];
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TSInteraction *_Nullable lastInteractionForInbox1 =
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[thread1 lastInteractionForInboxWithTransaction:transaction.asAnyRead];
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NSDate *date1 = lastInteractionForInbox1 ? lastInteractionForInbox1.receivedAtDate : thread1.creationDate;
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if (date1 == nil) {
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date1 = longAgo;
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}
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TSInteraction *_Nullable lastInteractionForInbox2 =
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[thread2 lastInteractionForInboxWithTransaction:transaction.asAnyRead];
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NSDate *date2 = lastInteractionForInbox2 ? lastInteractionForInbox2.receivedAtDate : thread2.creationDate;
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if (date2 == nil) {
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date2 = longAgo;
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}
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return [date1 compare:date2];
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}
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return NSOrderedSame;
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}];
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}
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+ (YapDatabaseViewSorting *)messagesSorting {
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return [YapDatabaseViewSorting withObjectBlock:^NSComparisonResult(YapDatabaseReadTransaction *transaction,
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NSString *group,
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NSString *collection1,
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NSString *key1,
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id object1,
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NSString *collection2,
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NSString *key2,
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id object2) {
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if (![object1 isKindOfClass:[TSInteraction class]]) {
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OWSFailDebug(@"Unexpected entity %@ in collection: %@", [object1 class], collection1);
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return NSOrderedSame;
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}
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if (![object2 isKindOfClass:[TSInteraction class]]) {
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OWSFailDebug(@"Unexpected entity %@ in collection: %@", [object2 class], collection2);
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return NSOrderedSame;
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}
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TSInteraction *message1 = (TSInteraction *)object1;
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TSInteraction *message2 = (TSInteraction *)object2;
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return [message1 compareForSorting:message2];
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}];
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}
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+ (void)asyncRegisterLazyRestoreAttachmentsDatabaseView:(OWSStorage *)storage
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{
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YapDatabaseViewGrouping *viewGrouping = [YapDatabaseViewGrouping withObjectBlock:^NSString *_Nullable(
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YapDatabaseReadTransaction *transaction, NSString *collection, NSString *key, id object) {
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if (![object isKindOfClass:[TSAttachment class]]) {
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OWSFailDebug(@"Unexpected entity %@ in collection: %@", [object class], collection);
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return nil;
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}
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if (![object isKindOfClass:[TSAttachmentPointer class]]) {
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return nil;
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}
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TSAttachmentPointer *attachmentPointer = (TSAttachmentPointer *)object;
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if ([attachmentPointer lazyRestoreFragmentWithTransaction:transaction.asAnyRead]) {
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return TSLazyRestoreAttachmentsGroup;
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} else {
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return nil;
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}
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}];
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YapDatabaseViewSorting *viewSorting =
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[YapDatabaseViewSorting withObjectBlock:^NSComparisonResult(YapDatabaseReadTransaction *transaction,
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NSString *group,
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NSString *collection1,
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NSString *key1,
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id object1,
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NSString *collection2,
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NSString *key2,
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id object2) {
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if (![object1 isKindOfClass:[TSAttachmentPointer class]]) {
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OWSFailDebug(@"Unexpected entity %@ in collection: %@", [object1 class], collection1);
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return NSOrderedSame;
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}
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if (![object2 isKindOfClass:[TSAttachmentPointer class]]) {
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OWSFailDebug(@"Unexpected entity %@ in collection: %@", [object2 class], collection2);
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return NSOrderedSame;
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}
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// Specific ordering doesn't matter; we just need a stable ordering.
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TSAttachmentPointer *attachmentPointer1 = (TSAttachmentPointer *)object1;
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TSAttachmentPointer *attachmentPointer2 = (TSAttachmentPointer *)object2;
|
|
return [attachmentPointer1.uniqueId compare:attachmentPointer2.uniqueId];
|
|
}];
|
|
|
|
YapDatabaseViewOptions *options = [YapDatabaseViewOptions new];
|
|
options.isPersistent = YES;
|
|
options.allowedCollections =
|
|
[[YapWhitelistBlacklist alloc] initWithWhitelist:[NSSet setWithObject:[TSAttachment collection]]];
|
|
YapDatabaseView *view =
|
|
[[YapDatabaseAutoView alloc] initWithGrouping:viewGrouping sorting:viewSorting versionTag:@"4" options:options];
|
|
[storage asyncRegisterExtension:view withName:TSLazyRestoreAttachmentsDatabaseViewExtensionName];
|
|
}
|
|
|
|
// MJK TODO - dynamic interactions
|
|
+ (id)threadOutgoingMessageDatabaseView:(YapDatabaseReadTransaction *)transaction
|
|
{
|
|
OWSAssertDebug(transaction);
|
|
|
|
id result = [transaction ext:TSThreadOutgoingMessageDatabaseViewExtensionName];
|
|
OWSAssertDebug(result);
|
|
return result;
|
|
}
|
|
|
|
+ (id)threadSpecialMessagesDatabaseView:(YapDatabaseReadTransaction *)transaction
|
|
{
|
|
OWSAssertDebug(transaction);
|
|
|
|
id result = [transaction ext:TSThreadSpecialMessagesDatabaseViewExtensionName];
|
|
OWSAssertDebug(result);
|
|
return result;
|
|
}
|
|
|
|
+ (id)incompleteViewOnceMessagesDatabaseView:(YapDatabaseReadTransaction *)transaction
|
|
{
|
|
OWSAssertDebug(transaction);
|
|
|
|
id result = [transaction ext:TSIncompleteViewOnceMessagesDatabaseViewExtensionName];
|
|
OWSAssertDebug(result);
|
|
return result;
|
|
}
|
|
|
|
@end
|
|
|
|
NS_ASSUME_NONNULL_END
|