ssb: Respect blocks when getting blocks and accounts at the db level.

src/ssb.db.c

@@ -894,7 +894,7 @@ bool tf_ssb_db_blob_has(sqlite3* db, const char* id)
 {
 	bool result = false;
 	sqlite3_stmt* statement;
-	const char* query = "SELECT COUNT(*) FROM blobs WHERE id = ?1";
+	const char* query = "SELECT COUNT(*) FROM blobs LEFT OUTER JOIN blocks ON blobs.id = blocks.id WHERE blobs.id = ?1 AND blocks.id IS NULL";
 	if (sqlite3_prepare_v2(db, query, -1, &statement, NULL) == SQLITE_OK)
 	{
 		if (sqlite3_bind_text(statement, 1, id, -1, NULL) == SQLITE_OK && sqlite3_step(statement) == SQLITE_ROW)
@@ -911,7 +911,7 @@ bool tf_ssb_db_blob_get(tf_ssb_t* ssb, const char* id, uint8_t** out_blob, size_
 	bool result = false;
 	sqlite3_stmt* statement;
 	sqlite3* db = tf_ssb_acquire_db_reader(ssb);
-	const char* query = "SELECT content FROM blobs WHERE id = ?1";
+	const char* query = "SELECT content FROM blobs LEFT OUTER JOIN blocks ON blobs.id = blocks.id WHERE blobs.id = ?1 AND blocks.id IS NULL";
 	if (sqlite3_prepare_v2(db, query, -1, &statement, NULL) == SQLITE_OK)
 	{
 		if (sqlite3_bind_text(statement, 1, id, -1, NULL) == SQLITE_OK && sqlite3_step(statement) == SQLITE_ROW)
@@ -1169,7 +1169,8 @@ bool tf_ssb_db_get_latest_message_by_author(tf_ssb_t* ssb, const char* author, i
 
 	if (out_message_id)
 	{
-		const char* query = "SELECT id, sequence FROM messages WHERE author = ?1 ORDER BY sequence DESC LIMIT 1";
+		const char* query = "SELECT messages.id, messages.sequence FROM messages LEFT OUTER JOIN blocks ON messages.id = blocks.id WHERE author = ?1 AND blocks.id IS NULL ORDER "
+							"BY messages.sequence DESC LIMIT 1";
 		if (sqlite3_prepare_v2(db, query, -1, &statement, NULL) == SQLITE_OK)
 		{
 			if (sqlite3_bind_text(statement, 1, author, -1, NULL) == SQLITE_OK && sqlite3_step(statement) == SQLITE_ROW)
@@ -1193,7 +1194,8 @@ bool tf_ssb_db_get_latest_message_by_author(tf_ssb_t* ssb, const char* author, i
 	}
 	else
 	{
-		const char* query = "SELECT max_sequence FROM messages_stats WHERE author = ?1";
+		const char* query = "SELECT messages_stats.max_sequence FROM messages_stats LEFT OUTER JOIN blocks ON messages_stats.author = blocks.id WHERE messages_stats.author = ?1 "
+							"AND blocks.id IS NULL";
 		if (sqlite3_prepare_v2(db, query, -1, &statement, NULL) == SQLITE_OK)
 		{
 			if (sqlite3_bind_text(statement, 1, author, -1, NULL) == SQLITE_OK && sqlite3_step(statement) == SQLITE_ROW)
@@ -2946,5 +2948,6 @@ void tf_ssb_db_get_blocks(sqlite3* db, void (*callback)(const char* id, double t
 		{
 			callback((const char*)sqlite3_column_text(statement, 0), sqlite3_column_double(statement, 1), user_data);
 		}
+		sqlite3_finalize(statement);
 	}
 }

src/ssb.ebt.c

@@ -221,14 +221,6 @@ static void _ebt_add_to_clock(ebt_get_clock_t* work, const char* id, int64_t val
 	}
 }
 
-static bool _is_blocked(tf_ssb_t* ssb, const char* id)
-{
-	sqlite3* db = tf_ssb_acquire_db_reader(ssb);
-	bool blocked = tf_ssb_db_is_blocked(db, id);
-	tf_ssb_release_db_reader(ssb, db);
-	return blocked;
-}
-
 static void _tf_ssb_ebt_get_send_clock_work(tf_ssb_connection_t* connection, void* user_data)
 {
 	ebt_get_clock_t* work = user_data;
@@ -247,10 +239,7 @@ static void _tf_ssb_ebt_get_send_clock_work(tf_ssb_connection_t* connection, voi
 		for (int i = 0; visible[i]; i++)
 		{
 			int32_t sequence = 0;
-			if (!_is_blocked(ssb, visible[i]))
-			{
 			tf_ssb_db_get_latest_message_by_author(ssb, visible[i], &sequence, NULL, 0);
-			}
 			sequences = tf_resize_vec(sequences, (i + 1) * sizeof(int32_t));
 			sequences[i] = sequence;
 		}
@@ -269,8 +258,6 @@ static void _tf_ssb_ebt_get_send_clock_work(tf_ssb_connection_t* connection, voi
 	/* Ask about the incoming connection, too. */
 	char id[k_id_base64_len] = "";
 	if (tf_ssb_connection_get_id(connection, id, sizeof(id)))
-	{
-		if (!_is_blocked(ssb, id))
 	{
 		int32_t sequence = 0;
 		tf_ssb_db_get_latest_message_by_author(ssb, id, &sequence, NULL, 0);
@@ -278,7 +265,6 @@ static void _tf_ssb_ebt_get_send_clock_work(tf_ssb_connection_t* connection, voi
 		_ebt_add_to_clock(work, id, sequence, true, true);
 		uv_mutex_unlock(&work->ebt->mutex);
 	}
-	}
 
 	/* Also respond with what we know about all requested identities. */
 	tf_ssb_ebt_clock_entry_t* requested = NULL;
@@ -300,12 +286,9 @@ static void _tf_ssb_ebt_get_send_clock_work(tf_ssb_connection_t* connection, voi
 	if (requested_count)
 	{
 		for (int i = 0; i < requested_count; i++)
-		{
-			if (!_is_blocked(ssb, requested[i].id))
 		{
 			tf_ssb_db_get_latest_message_by_author(ssb, requested[i].id, &requested[i].value, NULL, 0);
 		}
-		}
 
 		uv_mutex_lock(&work->ebt->mutex);
 		for (int i = 0; i < requested_count; i++)

src/ssb.tests.c

@@ -1903,12 +1903,15 @@ void tf_ssb_test_blocks(const tf_test_options_t* options)
 	}
 	JS_FreeValue(context, obj);
 
+	assert(tf_ssb_db_blob_get(ssb, blob_id, NULL, NULL));
+
 	sqlite3* db = tf_ssb_acquire_db_writer(ssb);
 	tf_ssb_db_add_block(db, message_id);
 	assert(tf_ssb_db_is_blocked(db, message_id));
 	/* Blocked already, because the blocked message references it. */
 	assert(tf_ssb_db_is_blocked(db, blob_id));
 	tf_ssb_db_add_block(db, blob_id);
+	assert(!tf_ssb_db_blob_get(ssb, blob_id, NULL, NULL));
 	tf_ssb_db_add_block(db, id);
 	assert(tf_ssb_db_is_blocked(db, id));
 	tf_ssb_db_remove_block(db, blob_id);
@@ -1918,6 +1921,7 @@ void tf_ssb_test_blocks(const tf_test_options_t* options)
 	assert(!tf_ssb_db_is_blocked(db, blob_id));
 	assert(!tf_ssb_db_is_blocked(db, id));
 	tf_ssb_release_db_writer(ssb, db);
+	assert(tf_ssb_db_blob_get(ssb, blob_id, NULL, NULL));
 
 	tf_ssb_destroy(ssb);