Detect and handle corrupt database views.

SignalServiceKit/src/Messages/OWSBatchMessageProcessor.h

@@ -14,6 +14,8 @@ NS_ASSUME_NONNULL_BEGIN
 @interface OWSBatchMessageProcessor : NSObject
 
 + (instancetype)sharedInstance;
+
++ (NSString *)databaseExtensionName;
 + (void)asyncRegisterDatabaseExtension:(OWSStorage *)storage;
 
 - (void)enqueueEnvelopeData:(NSData *)envelopeData

SignalServiceKit/src/Messages/OWSBatchMessageProcessor.m

@@ -464,6 +464,11 @@ NSString *const OWSMessageContentJobFinderExtensionGroup = @"OWSMessageContentJo
 
 #pragma mark - class methods
 
++ (NSString *)databaseExtensionName
+{
+    return OWSMessageContentJobFinderExtensionName;
+}
+
 + (void)asyncRegisterDatabaseExtension:(OWSStorage *)storage
 {
     [OWSMessageContentJobFinder asyncRegisterDatabaseExtension:storage];

SignalServiceKit/src/Messages/OWSDisappearingMessagesFinder.h

@@ -25,9 +25,8 @@ NS_ASSUME_NONNULL_BEGIN
  */
 - (nullable NSNumber *)nextExpirationTimestampWithTransaction:(YapDatabaseReadTransaction *_Nonnull)transaction;
 
-/**
- * Database extensions required for class to work.
- */
++ (NSString *)databaseExtensionName;
+
 + (void)asyncRegisterDatabaseExtensions:(OWSStorage *)storage;
 
 #ifdef DEBUG

SignalServiceKit/src/Messages/OWSDisappearingMessagesFinder.m

@@ -196,6 +196,11 @@ static NSString *const OWSDisappearingMessageFinderExpiresAtIndex = @"index_mess
 }
 #endif
 
++ (NSString *)databaseExtensionName
+{
+    return OWSDisappearingMessageFinderExpiresAtIndex;
+}
+
 + (void)asyncRegisterDatabaseExtensions:(OWSStorage *)storage
 {
     [storage asyncRegisterExtension:[self indexDatabaseExtension] withName:OWSDisappearingMessageFinderExpiresAtIndex];

SignalServiceKit/src/Messages/OWSFailedAttachmentDownloadsJob.h

@@ -14,9 +14,7 @@ NS_ASSUME_NONNULL_BEGIN
 
 - (void)run;
 
-/**
- * Database extensions required for class to work.
- */
++ (NSString *)databaseExtensionName;
 + (void)asyncRegisterDatabaseExtensionsWithPrimaryStorage:(OWSStorage *)storage;
 
 #ifdef DEBUG

SignalServiceKit/src/Messages/OWSFailedAttachmentDownloadsJob.m

@@ -126,6 +126,11 @@ static NSString *const OWSFailedAttachmentDownloadsJobAttachmentStateIndex = @"i
 }
 #endif
 
++ (NSString *)databaseExtensionName
+{
+    return OWSFailedAttachmentDownloadsJobAttachmentStateIndex;
+}
+
 + (void)asyncRegisterDatabaseExtensionsWithPrimaryStorage:(OWSStorage *)storage
 {
     [storage asyncRegisterExtension:[self indexDatabaseExtension]

SignalServiceKit/src/Messages/OWSFailedMessagesJob.h

@@ -14,9 +14,7 @@ NS_ASSUME_NONNULL_BEGIN
 
 - (void)run;
 
-/**
- * Database extensions required for class to work.
- */
++ (NSString *)databaseExtensionName;
 + (void)asyncRegisterDatabaseExtensionsWithPrimaryStorage:(OWSStorage *)storage;
 
 #ifdef DEBUG

SignalServiceKit/src/Messages/OWSFailedMessagesJob.m

@@ -136,6 +136,11 @@ static NSString *const OWSFailedMessagesJobMessageStateIndex = @"index_outoing_m
 }
 #endif
 
++ (NSString *)databaseExtensionName
+{
+    return OWSFailedMessagesJobMessageStateIndex;
+}
+
 + (void)asyncRegisterDatabaseExtensionsWithPrimaryStorage:(OWSStorage *)storage
 {
     [storage asyncRegisterExtension:[self indexDatabaseExtension] withName:OWSFailedMessagesJobMessageStateIndex];

SignalServiceKit/src/Messages/OWSMessageReceiver.h

@@ -14,6 +14,8 @@ NS_ASSUME_NONNULL_BEGIN
 @interface OWSMessageReceiver : NSObject
 
 + (instancetype)sharedInstance;
+
++ (NSString *)databaseExtensionName;
 + (void)asyncRegisterDatabaseExtension:(OWSStorage *)storage;
 
 - (void)handleReceivedEnvelope:(OWSSignalServiceProtosEnvelope *)envelope;

SignalServiceKit/src/Messages/OWSMessageReceiver.m

@@ -424,6 +424,11 @@ NSString *const OWSMessageDecryptJobFinderExtensionGroup = @"OWSMessageProcessin
 
 #pragma mark - class methods
 
++ (NSString *)databaseExtensionName
+{
+    return OWSMessageDecryptJobFinderExtensionName;
+}
+
 + (void)asyncRegisterDatabaseExtension:(OWSStorage *)storage
 {
     [OWSMessageDecryptJobFinder asyncRegisterDatabaseExtension:storage];

SignalServiceKit/src/Storage/OWSIncomingMessageFinder.h

@@ -12,9 +12,7 @@ NS_ASSUME_NONNULL_BEGIN
 
 - (instancetype)initWithPrimaryStorage:(OWSPrimaryStorage *)primaryStorage NS_DESIGNATED_INITIALIZER;
 
-/**
- * Must be called before using this finder.
- */
++ (NSString *)databaseExtensionName;
 + (void)asyncRegisterExtensionWithPrimaryStorage:(OWSStorage *)storage;
 
 /**

SignalServiceKit/src/Storage/OWSIncomingMessageFinder.m

@@ -92,6 +92,11 @@ NSString *const OWSIncomingMessageFinderColumnSourceDeviceId = @"OWSIncomingMess
     return [[YapDatabaseSecondaryIndex alloc] initWithSetup:setup handler:handler];
 }
 
++ (NSString *)databaseExtensionName
+{
+    return OWSIncomingMessageFinderExtensionName;
+}
+
 + (void)asyncRegisterExtensionWithPrimaryStorage:(OWSStorage *)storage
 {
     DDLogInfo(@"%@ registering async.", self.logTag);

SignalServiceKit/src/Storage/OWSMediaGalleryFinder.h

@@ -28,6 +28,7 @@ NS_ASSUME_NONNULL_BEGIN
 
 #pragma mark - Extension registration
 
++ (NSString *)databaseExtensionName;
 + (void)asyncRegisterDatabaseExtensionsWithPrimaryStorage:(OWSStorage *)storage;
 
 @end

SignalServiceKit/src/Storage/OWSMediaGalleryFinder.m

@@ -111,6 +111,11 @@ static NSString *const OWSMediaGalleryFinderExtensionName = @"OWSMediaGalleryFin
 
 #pragma mark - Extension registration
 
++ (NSString *)databaseExtensionName
+{
+    return OWSMediaGalleryFinderExtensionName;
+}
+
 + (void)asyncRegisterDatabaseExtensionsWithPrimaryStorage:(OWSStorage *)storage
 {
     [storage asyncRegisterExtension:[self mediaGalleryDatabaseExtension]

SignalServiceKit/src/Storage/OWSPrimaryStorage.m

@@ -22,7 +22,7 @@ NS_ASSUME_NONNULL_BEGIN
 NSString *const OWSPrimaryStorageExceptionName_CouldNotCreateDatabaseDirectory
     = @"TSStorageManagerExceptionName_CouldNotCreateDatabaseDirectory";
 
-void runSyncRegistrationsForStorage(OWSStorage *storage)
+void RunSyncRegistrationsForStorage(OWSStorage *storage)
 {
     OWSCAssert(storage);
 
@@ -30,7 +30,7 @@ void runSyncRegistrationsForStorage(OWSStorage *storage)
     [TSDatabaseView registerCrossProcessNotifier:storage];
 }
 
-void runAsyncRegistrationsForStorage(OWSStorage *storage, dispatch_block_t completion)
+void RunAsyncRegistrationsForStorage(OWSStorage *storage, dispatch_block_t completion)
 {
     OWSCAssert(storage);
     OWSCAssert(completion);
@@ -63,6 +63,84 @@ void runAsyncRegistrationsForStorage(OWSStorage *storage, dispatch_block_t compl
     [TSDatabaseView asyncRegisterLazyRestoreAttachmentsDatabaseView:storage completion:completion];
 }
 
+extern NSString *const TSThreadOutgoingMessageDatabaseViewExtensionName;
+extern NSString *const TSUnseenDatabaseViewExtensionName;
+extern NSString *const TSThreadSpecialMessagesDatabaseViewExtensionName;
+
+void VerifyRegistrationsForStorage(OWSStorage *storage)
+{
+    OWSCAssert(storage);
+
+    // This should 1:1 correspond to the database view registrations
+    // done in RunSyncRegistrationsForStorage() and
+    // RunAsyncRegistrationsForStorage().
+    NSArray<NSString *> *databaseViewNames = @[
+        // We don't need to verify the cross process notifier.
+        // [TSDatabaseView registerCrossProcessNotifier:storage];
+
+        // [TSDatabaseView asyncRegisterThreadInteractionsDatabaseView:storage];
+        TSMessageDatabaseViewExtensionName,
+
+        // [TSDatabaseView asyncRegisterThreadDatabaseView:storage];
+        TSThreadDatabaseViewExtensionName,
+
+        // [TSDatabaseView asyncRegisterUnreadDatabaseView:storage];
+        TSUnreadDatabaseViewExtensionName,
+
+        // [storage asyncRegisterExtension:[TSDatabaseSecondaryIndexes registerTimeStampIndex] withName:@"idx"];
+        @"idx",
+
+        // [OWSMessageReceiver asyncRegisterDatabaseExtension:storage];
+        [OWSMessageReceiver databaseExtensionName],
+
+        // [OWSBatchMessageProcessor asyncRegisterDatabaseExtension:storage];
+        [OWSBatchMessageProcessor databaseExtensionName],
+
+        // [TSDatabaseView asyncRegisterUnseenDatabaseView:storage];
+        TSUnseenDatabaseViewExtensionName,
+
+        // [TSDatabaseView asyncRegisterThreadOutgoingMessagesDatabaseView:storage];
+        TSThreadOutgoingMessageDatabaseViewExtensionName,
+
+        // [TSDatabaseView asyncRegisterThreadSpecialMessagesDatabaseView:storage];
+        TSThreadSpecialMessagesDatabaseViewExtensionName,
+
+        // [OWSIncomingMessageFinder asyncRegisterExtensionWithPrimaryStorage:storage];
+        [OWSIncomingMessageFinder databaseExtensionName],
+
+        // [TSDatabaseView asyncRegisterSecondaryDevicesDatabaseView:storage];
+        TSSecondaryDevicesDatabaseViewExtensionName,
+
+        // [OWSDisappearingMessagesFinder asyncRegisterDatabaseExtensions:storage];
+        [OWSDisappearingMessagesFinder databaseExtensionName],
+
+        // [OWSFailedMessagesJob asyncRegisterDatabaseExtensionsWithPrimaryStorage:storage];
+        [OWSFailedMessagesJob databaseExtensionName],
+
+        // [OWSFailedAttachmentDownloadsJob asyncRegisterDatabaseExtensionsWithPrimaryStorage:storage];
+        [OWSFailedAttachmentDownloadsJob databaseExtensionName],
+
+        // [OWSMediaGalleryFinder asyncRegisterDatabaseExtensionsWithPrimaryStorage:storage];
+        [OWSMediaGalleryFinder databaseExtensionName],
+
+        // NOTE: Always pass the completion to the _LAST_ of the async database
+        // view registrations.
+        // [TSDatabaseView asyncRegisterLazyRestoreAttachmentsDatabaseView:storage completion:completion];
+        TSLazyRestoreAttachmentsDatabaseViewExtensionName,
+    ];
+
+    __block BOOL hasMissingDatabaseView = NO;
+    [[storage newDatabaseConnection] asyncReadWithBlock:^(YapDatabaseReadTransaction *transaction) {
+        for (NSString *databaseViewName in databaseViewNames) {
+            YapDatabaseViewTransaction *_Nullable viewTransaction = [transaction ext:databaseViewName];
+            if (!viewTransaction) {
+                OWSProdLogAndCFail(@"VerifyRegistrationsForStorage missing database view: %@", databaseViewName);
+                hasMissingDatabaseView = YES;
+            }
+        }
+    }];
+}
+
 #pragma mark -
 
 @interface OWSPrimaryStorage ()
@@ -119,7 +197,7 @@ void runAsyncRegistrationsForStorage(OWSStorage *storage, dispatch_block_t compl
 
 - (void)runSyncRegistrations
 {
-    runSyncRegistrationsForStorage(self);
+    RunSyncRegistrationsForStorage(self);
 
     // See comments on OWSDatabaseConnection.
     //
@@ -137,7 +215,7 @@ void runAsyncRegistrationsForStorage(OWSStorage *storage, dispatch_block_t compl
 
     DDLogVerbose(@"%@ async registrations enqueuing.", self.logTag);
 
-    runAsyncRegistrationsForStorage(self, ^{
+    RunAsyncRegistrationsForStorage(self, ^{
         OWSAssertIsOnMainThread();
 
         OWSAssert(!self.areAsyncRegistrationsComplete);
@@ -147,9 +225,16 @@ void runAsyncRegistrationsForStorage(OWSStorage *storage, dispatch_block_t compl
         self.areAsyncRegistrationsComplete = YES;
 
         completion();
+
+        [self verifyDatabaseViews];
     });
 }
 
+- (void)verifyDatabaseViews
+{
+    VerifyRegistrationsForStorage(self);
+}
+
 + (void)protectFiles
 {
     DDLogInfo(

SignalServiceKit/src/Util/OWSAsserts.h

@@ -128,6 +128,13 @@ NS_ASSUME_NONNULL_BEGIN
         OWSFail(_messageFormat, ##__VA_ARGS__);                                                                        \
     }
 
+#define OWSProdLogAndCFail(_messageFormat, ...)                                                                        \
+    {                                                                                                                  \
+        DDLogError(_messageFormat, ##__VA_ARGS__);                                                                     \
+        [DDLog flushLog];                                                                                              \
+        OWSCFail(_messageFormat, ##__VA_ARGS__);                                                                       \
+    }
+
 // This function is intended for use in Swift.
 void SwiftAssertIsOnMainThread(NSString *functionName);