n8n/packages/cli/src/Interfaces.ts

import {
	ExecutionError,
	ICredentialDataDecryptedObject,
	ICredentialsDecrypted,
	ICredentialsEncrypted,
	ICredentialType,
	IDataObject,
	IRun,
	IRunData,
	IRunExecutionData,
	ITaskData,
	IWorkflowBase as IWorkflowBaseWorkflow,
	IWorkflowCredentials,
	Workflow,
	WorkflowExecuteMode,
} from 'n8n-workflow';

import {
	IDeferredPromise, WorkflowExecute,
} from 'n8n-core';

import * as PCancelable from 'p-cancelable';
import { Repository } from 'typeorm';

import { ChildProcess } from 'child_process';
import { Url } from 'url';
import { Request } from 'express';
import { WorkflowEntity } from './databases/entities/WorkflowEntity';
import { TagEntity } from './databases/entities/TagEntity';

export interface IActivationError {
	time: number;
	error: {
		message: string;
	};
}

export interface IBullJobData {
	executionId: string;
	loadStaticData: boolean;
}

export interface IBullJobResponse {
	success: boolean;
}

export interface ICustomRequest extends Request {
	parsedUrl: Url | undefined;
}

export interface ICredentialsTypeData {
	[key: string]: ICredentialType;
}

export interface ICredentialsOverwrite {
	[key: string]: ICredentialDataDecryptedObject;
}

export interface IDatabaseCollections {
	Credentials: Repository<ICredentialsDb> | null;
	Execution: Repository<IExecutionFlattedDb> | null;
	Workflow: Repository<WorkflowEntity> | null;
	Webhook: Repository<IWebhookDb> | null;
	Tag: Repository<TagEntity> | null;
}

export interface IWebhookDb {
	workflowId: number | string;
	webhookPath: string;
	method: string;
	node: string;
	webhookId?: string;
	pathLength?: number;
}

// ----------------------------------
//               tags
// ----------------------------------

export interface ITagDb {
	id: number;
	name: string;
	createdAt: Date;
	updatedAt: Date;
}

export type UsageCount = {
	usageCount: number
};

export type ITagWithCountDb = ITagDb & UsageCount;

// ----------------------------------
//            workflows
// ----------------------------------

export interface IWorkflowBase extends IWorkflowBaseWorkflow {
	id?: number | string;
}

// Almost identical to editor-ui.Interfaces.ts
export interface IWorkflowDb extends IWorkflowBase {
	id: number | string;
	tags: ITagDb[];
}

export interface IWorkflowResponse extends IWorkflowBase {
	id: string;
}

// ----------------------------------
//            credentials
// ----------------------------------

export interface ICredentialsBase {
	createdAt: Date;
	updatedAt: Date;
}

export interface ICredentialsDb extends ICredentialsBase, ICredentialsEncrypted {
	id: number | string;
}

export interface ICredentialsResponse extends ICredentialsDb {
	id: string;
}

export interface ICredentialsDecryptedDb extends ICredentialsBase, ICredentialsDecrypted {
	id: number | string;
}

export interface ICredentialsDecryptedResponse extends ICredentialsDecryptedDb {
	id: string;
}

export type DatabaseType = 'mariadb' | 'postgresdb' | 'mysqldb' | 'sqlite';
export type SaveExecutionDataType = 'all' | 'none';

export interface IExecutionBase {
	id?: number | string;
	mode: WorkflowExecuteMode;
	startedAt: Date;
	stoppedAt?: Date; // empty value means execution is still running
	workflowId?: string; // To be able to filter executions easily //
	finished: boolean;
	retryOf?: number | string; // If it is a retry, the id of the execution it is a retry of.
	retrySuccessId?: number | string; // If it failed and a retry did succeed. The id of the successful retry.
}

// Data in regular format with references
export interface IExecutionDb extends IExecutionBase {
	data: IRunExecutionData;
	workflowData?: IWorkflowBase;
}

export interface IExecutionPushResponse {
	executionId?: string;
	waitingForWebhook?: boolean;
}

export interface IExecutionResponse extends IExecutionBase {
	id: string;
	data: IRunExecutionData;
	retryOf?: string;
	retrySuccessId?: string;
	workflowData: IWorkflowBase;
}

// Flatted data to save memory when saving in database or transfering
// via REST API
export interface IExecutionFlatted extends IExecutionBase {
	data: string;
	workflowData: IWorkflowBase;
}

export interface IExecutionFlattedDb extends IExecutionBase {
	id: number | string;
	data: string;
	workflowData: IWorkflowBase;
}

export interface IExecutionFlattedResponse extends IExecutionFlatted {
	id: string;
	retryOf?: string;
}

export interface IExecutionsListResponse {
	count: number;
	// results: IExecutionShortResponse[];
	results: IExecutionsSummary[];
	estimated: boolean;
}

export interface IExecutionsStopData {
	finished?: boolean;
	mode: WorkflowExecuteMode;
	startedAt: Date;
	stoppedAt?: Date;
}

export interface IExecutionsSummary {
	id: string;
	finished?: boolean;
	mode: WorkflowExecuteMode;
	retryOf?: string;
	retrySuccessId?: string;
	startedAt: Date;
	stoppedAt?: Date;
	workflowId: string;
	workflowName?: string;
}


export interface IExecutionsCurrentSummary {
	id: string;
	retryOf?: string;
	startedAt: Date;
	mode: WorkflowExecuteMode;
	workflowId: string;
}


export interface IExecutionDeleteFilter {
	deleteBefore?: Date;
	filters?: IDataObject;
	ids?: string[];
}

export interface IExecutingWorkflowData {
	executionData: IWorkflowExecutionDataProcess;
	process?: ChildProcess;
	startedAt: Date;
	postExecutePromises: Array<IDeferredPromise<IRun | undefined>>;
	workflowExecution?: PCancelable<IRun>;
}

export interface IExternalHooks {
	credentials?: {
		create?: Array<{ (this: IExternalHooksFunctions, credentialsData: ICredentialsEncrypted): Promise<void>; }>
		delete?: Array<{ (this: IExternalHooksFunctions, credentialId: string): Promise<void>; }>
		update?: Array<{ (this: IExternalHooksFunctions, credentialsData: ICredentialsDb): Promise<void>; }>
	};
	workflow?: {
		activate?: Array<{ (this: IExternalHooksFunctions, workflowData: IWorkflowDb): Promise<void>; }>
		create?: Array<{ (this: IExternalHooksFunctions, workflowData: IWorkflowBase): Promise<void>; }>
		delete?: Array<{ (this: IExternalHooksFunctions, workflowId: string): Promise<void>; }>
		execute?: Array<{ (this: IExternalHooksFunctions, workflowData: IWorkflowDb, mode: WorkflowExecuteMode): Promise<void>; }>
		update?: Array<{ (this: IExternalHooksFunctions, workflowData: IWorkflowDb): Promise<void>; }>
	};
}

export interface IExternalHooksFileData {
	[key: string]: {
		[key: string]: Array<(...args: any[]) => Promise<void>>; //tslint:disable-line:no-any
	};
}

export interface IExternalHooksFunctions {
	dbCollections: IDatabaseCollections;
}

export interface IExternalHooksClass {
	init(): Promise<void>;
	run(hookName: string, hookParameters?: any[]): Promise<void>; // tslint:disable-line:no-any
}

export interface IN8nConfig {
	database: IN8nConfigDatabase;
	endpoints: IN8nConfigEndpoints;
	executions: IN8nConfigExecutions;
	generic: IN8nConfigGeneric;
	host: string;
	nodes: IN8nConfigNodes;
	port: number;
	protocol: 'http' | 'https';
}

export interface IN8nConfigDatabase {
	type: DatabaseType;
	postgresdb: {
		host: string;
		password: string;
		port: number;
		user: string;
	};
}

export interface IN8nConfigEndpoints {
	rest: string;
	webhook: string;
	webhookTest: string;
}

export interface IN8nConfigExecutions {
	saveDataOnError: SaveExecutionDataType;
	saveDataOnSuccess: SaveExecutionDataType;
	saveDataManualExecutions: boolean;
}

export interface IN8nConfigExecutions {
	saveDataOnError: SaveExecutionDataType;
	saveDataOnSuccess: SaveExecutionDataType;
	saveDataManualExecutions: boolean;
}

export interface IN8nConfigGeneric {
	timezone: string;
}

export interface IN8nConfigNodes {
	errorTriggerType: string;
	exclude: string[];
}

export interface IVersionNotificationSettings {
	enabled: boolean;
	endpoint: string;
	infoUrl: string;
}

export interface IN8nUISettings {
	endpointWebhook: string;
	endpointWebhookTest: string;
	saveDataErrorExecution: string;
	saveDataSuccessExecution: string;
	saveManualExecutions: boolean;
	executionTimeout: number;
	maxExecutionTimeout: number;
	oauthCallbackUrls: {
		oauth1: string;
		oauth2: string;
	};
	timezone: string;
	urlBaseWebhook: string;
	versionCli: string;
	n8nMetadata?: {
		[key: string]: string | number | undefined;
	};
	versionNotifications: IVersionNotificationSettings;
	instanceId: string;
}

export interface IPackageVersions {
	cli: string;
}

export type IPushDataType = IPushData['type'];

export type IPushData =
	| PushDataExecutionFinished
	| PushDataExecutionStarted
	| PushDataExecuteAfter
	| PushDataExecuteBefore
	| PushDataConsoleMessage
	| PushDataTestWebhook;

type PushDataExecutionFinished = {
	data: IPushDataExecutionFinished;
	type: 'executionFinished';
};

type PushDataExecutionStarted = {
	data: IPushDataExecutionStarted;
	type: 'executionStarted';
};

type PushDataExecuteAfter = {
	data: IPushDataNodeExecuteAfter;
	type: 'nodeExecuteAfter';
};

type PushDataExecuteBefore = {
	data: IPushDataNodeExecuteBefore;
	type: 'nodeExecuteBefore';
};

type PushDataConsoleMessage = {
	data: IPushDataConsoleMessage;
	type: 'sendConsoleMessage';
};

type PushDataTestWebhook = {
	data: IPushDataTestWebhook;
	type: 'testWebhookDeleted' | 'testWebhookReceived';
};

export interface IPushDataExecutionFinished {
	data: IRun;
	executionId: string;
	retryOf?: string;
}

export interface IPushDataExecutionStarted {
	executionId: string;
	mode: WorkflowExecuteMode;
	startedAt: Date;
	retryOf?: string;
	workflowId: string;
	workflowName?: string;
}

export interface IPushDataNodeExecuteAfter {
	data: ITaskData;
	executionId: string;
	nodeName: string;
}


export interface IPushDataNodeExecuteBefore {
	executionId: string;
	nodeName: string;
}


export interface IPushDataTestWebhook {
	executionId: string;
	workflowId: string;
}

export interface IPushDataConsoleMessage {
	source: string;
	message: string;
}

export interface IResponseCallbackData {
	data?: IDataObject | IDataObject[];
	noWebhookResponse?: boolean;
	responseCode?: number;
}


export interface ITransferNodeTypes {
	[key: string]: {
		className: string;
		sourcePath: string;
	};
}


export interface IWorkflowErrorData {
	[key: string]: IDataObject | string | number | ExecutionError;
	execution: {
		id?: string;
		error: ExecutionError;
		lastNodeExecuted: string;
		mode: WorkflowExecuteMode;
	};
	workflow: {
		id?: string;
		name: string;
	};
}

export interface IProcessMessageDataHook {
	hook: string;
	parameters: any[]; // tslint:disable-line:no-any
}

export interface IWorkflowExecutionDataProcess {
	credentials: IWorkflowCredentials;
	destinationNode?: string;
	executionMode: WorkflowExecuteMode;
	executionData?: IRunExecutionData;
	runData?: IRunData;
	retryOf?: number | string;
	sessionId?: string;
	startNodes?: string[];
	workflowData: IWorkflowBase;
}


export interface IWorkflowExecutionDataProcessWithExecution extends IWorkflowExecutionDataProcess {
	credentialsOverwrite: ICredentialsOverwrite;
	credentialsTypeData: ICredentialsTypeData;
	executionId: string;
	nodeTypeData: ITransferNodeTypes;
}

export interface IWorkflowExecuteProcess {
	startedAt: Date;
	workflow: Workflow;
	workflowExecute: WorkflowExecute;
}