Add back a verify command. Remove unused and not very useful ssb.getMessage(). Make field ordering shenanigans more explicit.

src/main.c

@@ -48,6 +48,7 @@ static int _tf_command_import(const char* file, int argc, char* argv[]);
 static int _tf_command_export(const char* file, int argc, char* argv[]);
 static int _tf_command_run(const char* file, int argc, char* argv[]);
 static int _tf_command_sandbox(const char* file, int argc, char* argv[]);
+static int _tf_command_verify(const char* file, int argc, char* argv[]);
 static int _tf_command_usage(const char* file);
 
 typedef struct _command_t
@@ -62,6 +63,7 @@ const command_t k_commands[] = {
 	{ "sandbox", _tf_command_sandbox, "Run a sandboxed tildefriends sandbox process (used internally)." },
 	{ "import", _tf_command_import, "Import apps to SSB." },
 	{ "export", _tf_command_export, "Export apps from SSB." },
+	{ "verify", _tf_command_verify, "Verify a feed." },
 	{ "test", _tf_command_test, "Test SSB." },
 };
 
@@ -589,6 +591,59 @@ static int _tf_command_sandbox(const char* file, int argc, char* argv[])
 	return EXIT_SUCCESS;
 }
 
+static int _tf_command_verify(const char* file, int argc, char* argv[])
+{
+	const char* identity = NULL;
+	const char* db_path = k_db_path_default;
+	bool show_usage = false;
+
+	while (!show_usage)
+	{
+		static const struct option k_options[] = {
+			{ "id", required_argument, NULL, 'u' },
+			{ "db-path", required_argument, NULL, 'd' },
+			{ "help", no_argument, NULL, 'h' },
+			{ 0 },
+		};
+		int c = getopt_long(argc, argv, "i:d:h", k_options, NULL);
+		if (c == -1)
+		{
+			break;
+		}
+
+		switch (c)
+		{
+		case '?':
+		case 'h':
+		default:
+			show_usage = true;
+			break;
+		case 'i':
+			identity = optarg;
+			break;
+		case 'd':
+			db_path = optarg;
+			break;
+		}
+	}
+
+	if (show_usage)
+	{
+		tf_printf("\n%s import [options] [paths...]\n\n", file);
+		tf_printf("options:\n");
+		tf_printf("  -i, --identity identity  Identity to verify.\n");
+		tf_printf("  -d, --db-path db_path    SQLite database path (default: %s).\n", k_db_path_default);
+		tf_printf("  -h, --help               Show this usage information.\n");
+		return EXIT_FAILURE;
+	}
+
+	tf_printf("Verifying %s...\n", identity);
+	tf_ssb_t* ssb = tf_ssb_create(NULL, NULL, db_path, NULL);
+	bool verified = tf_ssb_db_verify(ssb, identity);
+	tf_ssb_destroy(ssb);
+	return verified ? EXIT_SUCCESS : EXIT_FAILURE;
+}
+
 #if !defined(__ANDROID__)
 static int _tf_command_usage(const char* file)
 {

src/ssb.c

@@ -1019,7 +1019,18 @@ static bool _tf_ssb_verify_and_strip_signature_internal(JSContext* context, JSVa
 
 bool tf_ssb_verify_and_strip_signature(JSContext* context, JSValue val, char* out_id, size_t out_id_size, char* out_signature, size_t out_signature_size, int* out_flags)
 {
-	if (_tf_ssb_verify_and_strip_signature_internal(context, val, out_id, out_id_size, out_signature, out_signature_size))
+	JSValue reordered = JS_NewObject(context);
+	JS_SetPropertyStr(context, reordered, "previous", JS_GetPropertyStr(context, val, "previous"));
+	JS_SetPropertyStr(context, reordered, "author", JS_GetPropertyStr(context, val, "author"));
+	JS_SetPropertyStr(context, reordered, "sequence", JS_GetPropertyStr(context, val, "sequence"));
+	JS_SetPropertyStr(context, reordered, "timestamp", JS_GetPropertyStr(context, val, "timestamp"));
+	JS_SetPropertyStr(context, reordered, "hash", JS_GetPropertyStr(context, val, "hash"));
+	JS_SetPropertyStr(context, reordered, "content", JS_GetPropertyStr(context, val, "content"));
+	JS_SetPropertyStr(context, reordered, "signature", JS_GetPropertyStr(context, val, "signature"));
+	bool result = _tf_ssb_verify_and_strip_signature_internal(context, reordered, out_id, out_id_size, out_signature, out_signature_size);
+	JS_FreeValue(context, reordered);
+
+	if (result)
 	{
 		if (out_flags)
 		{
@@ -1027,9 +1038,8 @@ bool tf_ssb_verify_and_strip_signature(JSContext* context, JSValue val, char* ou
 		}
 		return true;
 	}
-	else
+
-	{
+	reordered = JS_NewObject(context);
-		JSValue reordered = JS_NewObject(context);
 	JS_SetPropertyStr(context, reordered, "previous", JS_GetPropertyStr(context, val, "previous"));
 	JS_SetPropertyStr(context, reordered, "sequence", JS_GetPropertyStr(context, val, "sequence"));
 	JS_SetPropertyStr(context, reordered, "author", JS_GetPropertyStr(context, val, "author"));
@@ -1037,7 +1047,7 @@ bool tf_ssb_verify_and_strip_signature(JSContext* context, JSValue val, char* ou
 	JS_SetPropertyStr(context, reordered, "hash", JS_GetPropertyStr(context, val, "hash"));
 	JS_SetPropertyStr(context, reordered, "content", JS_GetPropertyStr(context, val, "content"));
 	JS_SetPropertyStr(context, reordered, "signature", JS_GetPropertyStr(context, val, "signature"));
-		bool result = _tf_ssb_verify_and_strip_signature_internal(context, reordered, out_id, out_id_size, out_signature, out_signature_size);
+	result = _tf_ssb_verify_and_strip_signature_internal(context, reordered, out_id, out_id_size, out_signature, out_signature_size);
 	JS_FreeValue(context, reordered);
 	if (result)
 	{
@@ -1047,7 +1057,7 @@ bool tf_ssb_verify_and_strip_signature(JSContext* context, JSValue val, char* ou
 		}
 		return true;
 	}
-	}
+
 	return false;
 }
 
@@ -3608,7 +3618,6 @@ void tf_ssb_verify_strip_and_store_message(tf_ssb_t* ssb, JSValue value, tf_ssb_
 	}
 	else
 	{
-		printf("nope\n");
 		_tf_ssb_verify_strip_and_store_finish(async);
 	}
 }

src/ssb.db.c

@@ -735,12 +735,13 @@ bool tf_ssb_db_blob_store(tf_ssb_t* ssb, const uint8_t* blob, size_t size, char*
 	return result;
 }
 
-bool tf_ssb_db_get_message_by_author_and_sequence(
+bool tf_ssb_db_get_message_by_author_and_sequence(tf_ssb_t* ssb, const char* author, int64_t sequence, char* out_message_id, size_t out_message_id_size, char* out_previous,
-	tf_ssb_t* ssb, const char* author, int64_t sequence, char* out_message_id, size_t out_message_id_size, double* out_timestamp, char** out_content)
+	size_t out_previous_size, char* out_author, size_t out_author_size, double* out_timestamp, char** out_content, char* out_hash, size_t out_hash_size, char* out_signature,
+	size_t out_signature_size, int* out_flags)
 {
 	bool found = false;
 	sqlite3_stmt* statement;
-	const char* query = "SELECT id, timestamp, json(content) FROM messages WHERE author = ?1 AND sequence = ?2";
+	const char* query = "SELECT id, previous, author, timestamp, json(content), hash, signature, flags FROM messages WHERE author = ?1 AND sequence = ?2";
 	sqlite3* db = tf_ssb_acquire_db_reader(ssb);
 	if (sqlite3_prepare(db, query, -1, &statement, NULL) == SQLITE_OK)
 	{
@@ -748,15 +749,45 @@ bool tf_ssb_db_get_message_by_author_and_sequence(
 		{
 			if (out_message_id)
 			{
-				strncpy(out_message_id, (const char*)sqlite3_column_text(statement, 0), out_message_id_size - 1);
+				snprintf(out_message_id, out_message_id_size, "%s", (const char*)sqlite3_column_text(statement, 0));
+			}
+			if (out_previous)
+			{
+				if (sqlite3_column_type(statement, 1) == SQLITE_NULL)
+				{
+					if (out_previous_size)
+					{
+						*out_previous = '\0';
+					}
+				}
+				else
+				{
+					snprintf(out_previous, out_previous_size, "%s", (const char*)sqlite3_column_text(statement, 1));
+				}
+			}
+			if (out_author)
+			{
+				snprintf(out_author, out_author_size, "%s", (const char*)sqlite3_column_text(statement, 2));
 			}
 			if (out_timestamp)
 			{
-				*out_timestamp = sqlite3_column_double(statement, 1);
+				*out_timestamp = sqlite3_column_double(statement, 3);
 			}
 			if (out_content)
 			{
-				*out_content = tf_strdup((const char*)sqlite3_column_text(statement, 2));
+				*out_content = tf_strdup((const char*)sqlite3_column_text(statement, 4));
+			}
+			if (out_hash)
+			{
+				snprintf(out_hash, out_hash_size, "%s", (const char*)sqlite3_column_text(statement, 5));
+			}
+			if (out_signature)
+			{
+				snprintf(out_signature, out_signature_size, "%s", (const char*)sqlite3_column_text(statement, 6));
+			}
+			if (out_flags)
+			{
+				*out_flags = sqlite3_column_int(statement, 7);
 			}
 			found = true;
 		}
@@ -1592,6 +1623,7 @@ bool tf_ssb_db_set_account_password(tf_ssb_t* ssb, const char* name, const char*
 		if (sqlite3_bind_text(statement, 1, name, -1, NULL) == SQLITE_OK && sqlite3_bind_text(statement, 2, user_string, user_length, NULL) == SQLITE_OK)
 		{
 			result = sqlite3_step(statement) == SQLITE_DONE;
+			tf_printf("set account password = %d\n", result);
 		}
 		sqlite3_finalize(statement);
 	}
@@ -1634,6 +1666,7 @@ bool tf_ssb_db_register_account(tf_ssb_t* ssb, const char* name, const char* pas
 	{
 		if (sqlite3_bind_text(statement, 1, value, value_length, NULL) == SQLITE_OK)
 		{
+			tf_printf("added user to properties\n");
 			result = sqlite3_step(statement) == SQLITE_DONE;
 		}
 		sqlite3_finalize(statement);
@@ -1784,3 +1817,65 @@ void tf_ssb_db_resolve_index_async(tf_ssb_t* ssb, const char* host, void (*callb
 	};
 	tf_ssb_run_work(ssb, _tf_ssb_db_resolve_index_work, _tf_ssb_db_resolve_index_after_work, request);
 }
+
+bool tf_ssb_db_verify(tf_ssb_t* ssb, const char* id)
+{
+	JSContext* context = tf_ssb_get_context(ssb);
+	bool verified = true;
+	int64_t sequence = -1;
+	if (tf_ssb_db_get_latest_message_by_author(ssb, id, &sequence, NULL, 0))
+	{
+		for (int64_t i = 1; i <= sequence; i++)
+		{
+			char message_id[k_id_base64_len];
+			char previous[256];
+			double timestamp;
+			char* content = NULL;
+			char hash[32];
+			char signature[256];
+			int flags = 0;
+			if (tf_ssb_db_get_message_by_author_and_sequence(ssb, id, i, message_id, sizeof(message_id), previous, sizeof(previous), NULL, 0, &timestamp, &content, hash,
+					sizeof(hash), signature, sizeof(signature), &flags))
+			{
+				JSValue message = tf_ssb_format_message(context, previous, id, i, timestamp, hash, content, signature, flags);
+				char calculated_id[k_id_base64_len];
+				char extracted_signature[256];
+				int calculated_flags = 0;
+				if (!tf_ssb_verify_and_strip_signature(context, message, calculated_id, sizeof(calculated_id), extracted_signature, sizeof(extracted_signature), &calculated_flags))
+				{
+					tf_printf("author=%s sequence=%" PRId64 " verify failed.\n", id, i);
+					verified = false;
+				}
+				if (calculated_flags != flags)
+				{
+					tf_printf("author=%s sequence=%" PRId64 " flag mismatch %d => %d.\n", id, i, flags, calculated_flags);
+					verified = false;
+				}
+				if (strcmp(message_id, calculated_id))
+				{
+					tf_printf("author=%s sequence=%" PRId64 " id mismatch %s => %s.\n", id, i, message_id, calculated_id);
+					verified = false;
+				}
+				JS_FreeValue(context, message);
+				tf_free(content);
+
+				if (!verified)
+				{
+					break;
+				}
+			}
+			else
+			{
+				tf_printf("Unable to find message with sequence=%" PRId64 " for author=%s.", i, id);
+				verified = false;
+				break;
+			}
+		}
+	}
+	else
+	{
+		tf_printf("Unable to get latest message for author '%s'.\n", id);
+		verified = false;
+	}
+	return verified;
+}

src/ssb.db.h

@@ -126,8 +126,9 @@ JSValue tf_ssb_db_get_message_by_id(tf_ssb_t* ssb, const char* id, bool is_keys)
 ** @param[out] out_content Populated with the message content.  Free with tf_free().
 ** @return True if the message was found and retrieved.
 */
-bool tf_ssb_db_get_message_by_author_and_sequence(
+bool tf_ssb_db_get_message_by_author_and_sequence(tf_ssb_t* ssb, const char* author, int64_t sequence, char* out_message_id, size_t out_message_id_size, char* out_previous,
-	tf_ssb_t* ssb, const char* author, int64_t sequence, char* out_message_id, size_t out_message_id_size, double* out_timestamp, char** out_content);
+	size_t out_previous_size, char* out_author, size_t out_author_size, double* out_timestamp, char** out_content, char* out_hash, size_t out_hash_size, char* out_signature,
+	size_t out_signature_size, int* out_flags);
 
 /**
 ** Get information about the last message from an author.
@@ -379,6 +380,8 @@ bool tf_ssb_db_set_property(tf_ssb_t* ssb, const char* id, const char* key, cons
 */
 void tf_ssb_db_resolve_index_async(tf_ssb_t* ssb, const char* host, void (*callback)(const char* path, void* user_data), void* user_data);
 
+bool tf_ssb_db_verify(tf_ssb_t* ssb, const char* id);
+
 /**
 ** An SQLite authorizer callback.  See https://www.sqlite.org/c3ref/set_authorizer.html for use.
 ** @param user_data User data registered with the authorizer.

src/ssb.js.c

@@ -576,29 +576,6 @@ static JSValue _tf_ssb_appendMessageWithIdentity(JSContext* context, JSValueCons
 	return result;
 }
 
-static JSValue _tf_ssb_getMessage(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
-{
-	JSValue result = JS_NULL;
-	tf_ssb_t* ssb = JS_GetOpaque(this_val, _tf_ssb_classId);
-	if (ssb)
-	{
-		const char* id = JS_ToCString(context, argv[0]);
-		int64_t sequence = 0;
-		JS_ToInt64(context, &sequence, argv[1]);
-		double timestamp = -1.0;
-		char* contents = NULL;
-		if (tf_ssb_db_get_message_by_author_and_sequence(ssb, id, sequence, NULL, 0, &timestamp, &contents))
-		{
-			result = JS_NewObject(context);
-			JS_SetPropertyStr(context, result, "timestamp", JS_NewFloat64(context, timestamp));
-			JS_SetPropertyStr(context, result, "content", JS_NewString(context, contents));
-			tf_free(contents);
-		}
-		JS_FreeCString(context, id);
-	}
-	return result;
-}
-
 static JSValue _tf_ssb_blobGet(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
 {
 	JSValue result = JS_NULL;
@@ -1891,7 +1868,6 @@ void tf_ssb_register(JSContext* context, tf_ssb_t* ssb)
 	JS_SetPropertyStr(context, object, "getAllIdentities", JS_NewCFunction(context, _tf_ssb_getAllIdentities, "getAllIdentities", 0));
 	JS_SetPropertyStr(context, object, "getActiveIdentity", JS_NewCFunction(context, _tf_ssb_getActiveIdentity, "getActiveIdentity", 3));
 	JS_SetPropertyStr(context, object, "getIdentityInfo", JS_NewCFunction(context, _tf_ssb_getIdentityInfo, "getIdentityInfo", 3));
-	JS_SetPropertyStr(context, object, "getMessage", JS_NewCFunction(context, _tf_ssb_getMessage, "getMessage", 2));
 	JS_SetPropertyStr(context, object, "blobGet", JS_NewCFunction(context, _tf_ssb_blobGet, "blobGet", 1));
 	JS_SetPropertyStr(context, object, "messageContentGet", JS_NewCFunction(context, _tf_ssb_messageContentGet, "messageContentGet", 1));
 	JS_SetPropertyStr(context, object, "connections", JS_NewCFunction(context, _tf_ssb_connections, "connections", 0));