mirror of
https://github.com/n8n-io/n8n.git
synced 2024-11-14 00:24:07 -08:00
461 lines
14 KiB
TypeScript
461 lines
14 KiB
TypeScript
import {
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IHookFunctions,
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IWebhookFunctions,
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} from 'n8n-core';
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import {
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IDataObject,
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INodeTypeDescription,
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INodeType,
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IWebhookResponseData,
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} from 'n8n-workflow';
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import {
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githubApiRequest,
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} from './GenericFunctions';
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export class GithubTrigger implements INodeType {
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description: INodeTypeDescription = {
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displayName: 'Github Trigger',
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name: 'githubTrigger',
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icon: 'file:github.png',
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group: ['trigger'],
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version: 1,
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subtitle: '={{$parameter["owner"] + "/" + $parameter["repository"] + ": " + $parameter["events"].join(", ")}}',
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description: 'Starts the workflow when a Github events occurs.',
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defaults: {
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name: 'Github Trigger',
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color: '#885577',
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},
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inputs: [],
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outputs: ['main'],
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credentials: [
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{
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name: 'githubApi',
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required: true,
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}
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],
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webhooks: [
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{
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name: 'default',
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httpMethod: 'POST',
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responseMode: 'onReceived',
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path: 'webhook',
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},
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],
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properties: [
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{
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displayName: 'Repository Owner',
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name: 'owner',
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type: 'string',
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default: '',
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required: true,
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placeholder: 'n8n-io',
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description: 'Owner of the repsitory.',
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},
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{
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displayName: 'Repository Name',
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name: 'repository',
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type: 'string',
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default: '',
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required: true,
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placeholder: 'n8n',
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description: 'The name of the repsitory.',
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},
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{
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displayName: 'Events',
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name: 'events',
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type: 'multiOptions',
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options: [
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{
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name: '*',
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value: '*',
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description: 'Any time any event is triggered (Wildcard Event).',
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},
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{
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name: 'check_run',
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value: 'check_run',
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description: 'Triggered when a check run is created, rerequested, completed, or has a requested_action.',
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},
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{
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name: 'check_suite',
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value: 'check_suite',
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description: 'Triggered when a check suite is completed, requested, or rerequested.',
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},
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{
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name: 'commit_comment',
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value: 'commit_comment',
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description: 'Triggered when a commit comment is created.',
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},
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{
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name: 'content_reference',
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value: 'content_reference',
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description: 'Triggered when the body or comment of an issue or pull request includes a URL that matches a configured content reference domain. Only GitHub Apps can receive this event.',
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},
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{
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name: 'create',
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value: 'create',
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description: 'Represents a created repository, branch, or tag.',
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},
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{
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name: 'delete',
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value: 'delete',
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description: 'Represents a deleted branch or tag.',
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},
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{
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name: 'deploy_key',
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value: 'deploy_key',
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description: 'Triggered when a deploy key is added or removed from a repository.',
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},
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{
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name: 'deployment',
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value: 'deployment',
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description: 'Represents a deployment.',
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},
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{
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name: 'deployment_status',
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value: 'deployment_status',
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description: 'Represents a deployment status.',
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},
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{
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name: 'fork',
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value: 'fork',
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description: 'Triggered when a user forks a repository.',
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},
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{
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name: 'github_app_authorization',
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value: 'github_app_authorization',
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description: 'Triggered when someone revokes their authorization of a GitHub App.',
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},
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{
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name: 'gollum',
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value: 'gollum',
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description: 'Triggered when a Wiki page is created or updated.',
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},
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{
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name: 'installation',
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value: 'installation',
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description: 'Triggered when someone installs (created) , uninstalls (deleted), or accepts new permissions (new_permissions_accepted) for a GitHub App. When a GitHub App owner requests new permissions, the person who installed the GitHub App must accept the new permissions request.',
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},
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{
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name: 'installation_repositories',
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value: 'installation_repositories',
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description: 'Triggered when a repository is added or removed from an installation.',
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},
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{
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name: 'issue_comment',
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value: 'issue_comment',
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description: 'Triggered when an issue comment is created, edited, or deleted.',
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},
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{
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name: 'issues',
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value: 'issues',
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description: 'Triggered when an issue is opened, edited, deleted, transferred, pinned, unpinned, closed, reopened, assigned, unassigned, labeled, unlabeled, locked, unlocked, milestoned, or demilestoned.',
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},
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{
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name: 'label',
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value: 'label',
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description: 'Triggered when a repository\'s label is created, edited, or deleted.',
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},
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{
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name: 'marketplace_purchase',
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value: 'marketplace_purchase',
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description: 'Triggered when someone purchases a GitHub Marketplace plan, cancels their plan, upgrades their plan (effective immediately), downgrades a plan that remains pending until the end of the billing cycle, or cancels a pending plan change.',
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},
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{
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name: 'member',
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value: 'member',
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description: 'Triggered when a user accepts an invitation or is removed as a collaborator to a repository, or has their permissions changed.',
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},
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{
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name: 'membership',
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value: 'membership',
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description: 'Triggered when a user is added or removed from a team. Organization hooks only.',
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},
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{
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name: 'meta',
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value: 'meta',
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description: 'Triggered when the webhook that this event is configured on is deleted.',
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},
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{
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name: 'milestone',
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value: 'milestone',
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description: 'Triggered when a milestone is created, closed, opened, edited, or deleted.',
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},
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{
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name: 'organization',
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value: 'organization',
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description: 'Triggered when an organization is deleted and renamed, and when a user is added, removed, or invited to an organization. Organization hooks only.',
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},
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{
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name: 'org_block',
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value: 'org_block',
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description: 'Triggered when an organization blocks or unblocks a user. Organization hooks only.',
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},
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{
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name: 'page_build',
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value: 'page_build',
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description: 'Triggered on push to a GitHub Pages enabled branch (gh-pages for project pages, master for user and organization pages).',
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},
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{
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name: 'project_card',
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value: 'project_card',
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description: 'Triggered when a project card is created, edited, moved, converted to an issue, or deleted.',
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},
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{
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name: 'project_column',
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value: 'project_column',
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description: 'Triggered when a project column is created, updated, moved, or deleted.',
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},
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{
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name: 'project',
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value: 'project',
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description: 'Triggered when a project is created, updated, closed, reopened, or deleted.',
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},
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{
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name: 'public',
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value: 'public',
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description: 'Triggered when a private repository is open sourced.',
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},
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{
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name: 'pull_request',
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value: 'pull_request',
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description: 'Triggered when a pull request is assigned, unassigned, labeled, unlabeled, opened, edited, closed, reopened, synchronize, ready_for_review, locked, unlocked, a pull request review is requested, or a review request is removed.',
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},
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{
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name: 'pull_request_review',
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value: 'pull_request_review',
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description: 'Triggered when a pull request review is submitted into a non-pending state, the body is edited, or the review is dismissed.',
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},
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{
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name: 'pull_request_review_comment',
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value: 'pull_request_review_comment',
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description: 'Triggered when a comment on a pull request\'s unified diff is created, edited, or deleted (in the Files Changed tab).',
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},
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{
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name: 'push',
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value: 'push',
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description: 'Triggered on a push to a repository branch. Branch pushes and repository tag pushes also trigger webhook push events. This is the default event.',
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},
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{
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name: 'release',
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value: 'release',
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description: 'Triggered when a release is published, unpublished, created, edited, deleted, or prereleased.',
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},
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{
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name: 'repository',
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value: 'repository',
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description: 'Triggered when a repository is created, archived, unarchived, renamed, edited, transferred, made public, or made private. Organization hooks are also triggered when a repository is deleted.',
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},
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{
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name: 'repository_import',
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value: 'repository_import',
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description: 'Triggered when a successful, cancelled, or failed repository import finishes for a GitHub organization or a personal repository.',
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},
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{
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name: 'repository_vulnerability_alert',
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value: 'repository_vulnerability_alert',
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description: 'Triggered when a security alert is created, dismissed, or resolved.',
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},
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{
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name: 'security_advisory',
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value: 'security_advisory',
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description: 'Triggered when a new security advisory is published, updated, or withdrawn.',
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},
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{
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name: 'star',
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value: 'star',
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description: 'Triggered when a star is added or removed from a repository.',
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},
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{
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name: 'status',
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value: 'status',
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description: 'Triggered when the status of a Git commit changes.',
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},
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{
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name: 'team',
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value: 'team',
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description: 'Triggered when an organization\'s team is created,<br/>deleted, edited, added_to_repository, or removed_from_repository. Organization hooks only',
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},
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{
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name: 'team_add',
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value: 'team_add',
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description: 'Triggered when a repository is added to a team.',
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},
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{
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name: 'watch',
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value: 'watch',
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description: 'Triggered when someone stars a repository.',
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},
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],
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required: true,
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default: [],
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description: 'The events to listen to.',
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},
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],
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};
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// @ts-ignore (because of request)
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webhookMethods = {
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default: {
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async checkExists(this: IHookFunctions): Promise<boolean> {
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const webhookData = this.getWorkflowStaticData('node');
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if (webhookData.webhookId === undefined) {
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// No webhook id is set so no webhook can exist
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return false;
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}
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// Webhook got created before so check if it still exists
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const owner = this.getNodeParameter('owner') as string;
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const repository = this.getNodeParameter('repository') as string;
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const endpoint = `/repos/${owner}/${repository}/hooks/${webhookData.webhookId}`;
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try {
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await githubApiRequest.call(this, 'GET', endpoint, {});
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} catch (e) {
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if (e.message.includes('[404]:')) {
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// Webhook does not exist
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delete webhookData.webhookId;
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delete webhookData.webhookEvents;
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return false;
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}
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// Some error occured
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throw e;
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}
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// If it did not error then the webhook exists
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return true;
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},
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async create(this: IHookFunctions): Promise<boolean> {
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const webhookUrl = this.getNodeWebhookUrl('default') as string;
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if (webhookUrl.includes('//localhost')) {
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throw new Error('The Webhook can not work on "localhost". Please, either setup n8n on a custom domain or start with "--tunnel"!');
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}
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const owner = this.getNodeParameter('owner') as string;
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const repository = this.getNodeParameter('repository') as string;
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const events = this.getNodeParameter('events', []);
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const endpoint = `/repos/${owner}/${repository}/hooks`;
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const body = {
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name: 'web',
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config: {
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url: webhookUrl,
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content_type: 'json',
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// secret: '...later...',
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insecure_ssl: '1', // '0' -> not allow inscure ssl | '1' -> allow insercure SSL
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},
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events,
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active: true,
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};
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const webhookData = this.getWorkflowStaticData('node');
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let responseData;
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try {
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responseData = await githubApiRequest.call(this, 'POST', endpoint, body);
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} catch (e) {
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if (e.message.includes('[422]:')) {
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// Webhook exists already
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// Get the data of the already registered webhook
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responseData = await githubApiRequest.call(this, 'GET', endpoint, body);
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for (const webhook of responseData as IDataObject[]) {
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if ((webhook!.config! as IDataObject).url! === webhookUrl) {
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// Webhook got found
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if (JSON.stringify(webhook.events) === JSON.stringify(events)) {
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// Webhook with same events exists already so no need to
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// create it again simply save the webhook-id
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webhookData.webhookId = webhook.id as string;
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webhookData.webhookEvents = webhook.events as string[];
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return true;
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}
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}
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}
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throw new Error('A webhook with the identical URL probably exists already. Please delete it manually on Github!');
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}
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throw e;
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}
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if (responseData.id === undefined || responseData.active !== true) {
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// Required data is missing so was not successful
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throw new Error('Github webhook creation response did not contain the expected data.');
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}
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webhookData.webhookId = responseData.id as string;
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webhookData.webhookEvents = responseData.events as string[];
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return true;
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},
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async delete(this: IHookFunctions): Promise<boolean> {
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const webhookData = this.getWorkflowStaticData('node');
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if (webhookData.webhookId !== undefined) {
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const owner = this.getNodeParameter('owner') as string;
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const repository = this.getNodeParameter('repository') as string;
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const endpoint = `/repos/${owner}/${repository}/hooks/${webhookData.webhookId}`;
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const body = {};
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try {
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await githubApiRequest.call(this, 'DELETE', endpoint, body);
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} catch (e) {
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return false;
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}
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// Remove from the static workflow data so that it is clear
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// that no webhooks are registred anymore
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delete webhookData.webhookId;
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delete webhookData.webhookEvents;
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}
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return true;
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},
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},
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};
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async webhook(this: IWebhookFunctions): Promise<IWebhookResponseData> {
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const bodyData = this.getBodyData();
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// Check if the webhook is only the ping from Github to confirm if it workshook_id
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if (bodyData.hook_id !== undefined && bodyData.action === undefined) {
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// Is only the ping and not an actual webhook call. So return 'OK'
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// but do not start the workflow.
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return {
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webhookResponse: 'OK'
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};
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}
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// Is a regular webhoook call
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// TODO: Add headers & requestPath
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const returnData: IDataObject[] = [];
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returnData.push(
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{
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body: bodyData,
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headers: this.getHeaderData(),
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query: this.getQueryData(),
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}
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);
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return {
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workflowData: [
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this.helpers.returnJsonArray(returnData)
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],
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};
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}
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}
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