n8n
Version:
n8n Workflow Automation Tool
396 lines • 18.3 kB
JavaScript
"use strict";
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exports.WorkflowExecutionService = void 0;
const backend_common_1 = require("@n8n/backend-common");
const config_1 = require("@n8n/config");
const db_1 = require("@n8n/db");
const di_1 = require("@n8n/di");
const n8n_core_1 = require("n8n-core");
const n8n_workflow_1 = require("n8n-workflow");
const execution_data_service_1 = require("../executions/execution-data.service");
const pre_execution_checks_1 = require("../executions/pre-execution-checks");
const node_types_1 = require("../node-types");
const test_webhooks_1 = require("../webhooks/test-webhooks");
const WorkflowExecuteAdditionalData = __importStar(require("../workflow-execute-additional-data"));
const workflow_runner_1 = require("../workflow-runner");
let WorkflowExecutionService = class WorkflowExecutionService {
constructor(logger, errorReporter, executionRepository, workflowRepository, nodeTypes, testWebhooks, workflowRunner, globalConfig, subworkflowPolicyChecker, executionDataService) {
this.logger = logger;
this.errorReporter = errorReporter;
this.executionRepository = executionRepository;
this.workflowRepository = workflowRepository;
this.nodeTypes = nodeTypes;
this.testWebhooks = testWebhooks;
this.workflowRunner = workflowRunner;
this.globalConfig = globalConfig;
this.subworkflowPolicyChecker = subworkflowPolicyChecker;
this.executionDataService = executionDataService;
}
async runWorkflow(workflowData, node, data, additionalData, mode, responsePromise) {
const nodeExecutionStack = [
{
node,
data: {
main: data,
},
source: null,
},
];
const executionData = (0, n8n_workflow_1.createRunExecutionData)({
executionData: {
nodeExecutionStack,
},
});
const runData = {
userId: additionalData.userId,
executionMode: mode,
executionData,
workflowData,
};
return await this.workflowRunner.run(runData, true, undefined, undefined, responsePromise);
}
isDestinationNodeATrigger(destinationNode, workflow) {
const node = workflow.nodes.find((n) => n.name === destinationNode);
if (node === undefined) {
return false;
}
const nodeType = this.nodeTypes.getByNameAndVersion(node.type, node.typeVersion);
return nodeType.description.group.includes('trigger');
}
async executeManually(payload, user, pushRef) {
const workflowIsActive = await this.workflowRepository.isActive(payload.workflowData.id);
payload.workflowData.active = false;
payload.workflowData.activeVersionId = null;
if ('triggerToStartFrom' in payload) {
Reflect.deleteProperty(payload, 'runData');
}
let data;
if (isPartialExecution(payload)) {
if (this.partialExecutionFulfilsPreconditions(payload)) {
data = {
destinationNode: payload.destinationNode,
executionMode: 'manual',
runData: payload.runData,
pinData: payload.workflowData.pinData,
pushRef,
workflowData: payload.workflowData,
userId: user.id,
dirtyNodeNames: payload.dirtyNodeNames,
agentRequest: payload.agentRequest,
};
}
else {
payload = upgradeToFullManualExecutionFromUnknownTrigger(payload);
}
}
if (isFullExecutionFromKnownTrigger(payload)) {
if (triggerHasNoPinnedData(payload) &&
(await this.testWebhooks.needsWebhook({
userId: user.id,
workflowEntity: payload.workflowData,
additionalData: await WorkflowExecuteAdditionalData.getBase({
userId: user.id,
workflowId: payload.workflowData.id,
}),
pushRef,
triggerToStartFrom: payload.triggerToStartFrom,
destinationNode: payload.destinationNode,
workflowIsActive,
}))) {
return { waitingForWebhook: true };
}
data = {
executionMode: 'manual',
pinData: payload.workflowData.pinData,
pushRef,
workflowData: payload.workflowData,
userId: user.id,
triggerToStartFrom: payload.triggerToStartFrom,
agentRequest: payload.agentRequest,
destinationNode: payload.destinationNode,
};
}
if (isFullExecutionFromUnknownTrigger(payload)) {
const pinnedTrigger = this.selectPinnedTrigger(payload.workflowData, payload.destinationNode.nodeName, payload.workflowData.pinData ?? {});
if (pinnedTrigger === undefined &&
(await this.testWebhooks.needsWebhook({
userId: user.id,
workflowEntity: payload.workflowData,
additionalData: await WorkflowExecuteAdditionalData.getBase({
userId: user.id,
workflowId: payload.workflowData.id,
}),
pushRef,
destinationNode: payload.destinationNode,
workflowIsActive,
}))) {
return { waitingForWebhook: true };
}
data = {
executionMode: 'manual',
pinData: payload.workflowData.pinData,
pushRef,
workflowData: payload.workflowData,
userId: user.id,
agentRequest: payload.agentRequest,
destinationNode: payload.destinationNode,
triggerToStartFrom: pinnedTrigger ? { name: pinnedTrigger.name } : undefined,
};
}
if (data) {
const offloadingManualExecutionsInQueueMode = this.globalConfig.executions.mode === 'queue' &&
process.env.OFFLOAD_MANUAL_EXECUTIONS_TO_WORKERS === 'true';
if (data.executionMode === 'manual' && offloadingManualExecutionsInQueueMode) {
data.executionData = (0, n8n_workflow_1.createRunExecutionData)({
startData: {
startNodes: data.startNodes,
destinationNode: data.destinationNode,
},
resultData: {
pinData: data.pinData,
runData: data.runData ?? null,
},
manualData: {
userId: data.userId,
dirtyNodeNames: data.dirtyNodeNames,
triggerToStartFrom: data.triggerToStartFrom,
},
executionData: null,
});
}
const executionId = await this.workflowRunner.run(data);
return { executionId };
}
throw new n8n_workflow_1.UnexpectedError('`executeManually` was called with an unexpected payload', {
extra: { payload },
});
}
async executeChatWorkflow(workflowData, executionData, user, httpResponse, streamingEnabled, executionMode = 'chat') {
const data = {
executionMode,
workflowData,
userId: user.id,
executionData,
streamingEnabled,
httpResponse,
};
const executionId = await this.workflowRunner.run(data, undefined, true);
return {
executionId,
};
}
async executeErrorWorkflow(workflowId, workflowErrorData, runningProject) {
try {
const workflowData = await this.workflowRepository.get({ id: workflowId }, { relations: ['activeVersion'] });
if (workflowData === null) {
this.logger.error(`Calling Error Workflow for "${workflowErrorData.workflow.id}". Could not find workflow "${workflowId}"`, { workflowId });
return;
}
if (workflowData.activeVersion === null) {
this.logger.error(`Calling Error Workflow for "${workflowErrorData.workflow.id}". Workflow "${workflowId}" is not active and cannot be executed`, { workflowId });
return;
}
const executionMode = 'error';
const workflowInstance = new n8n_workflow_1.Workflow({
id: workflowId,
name: workflowData.name,
nodeTypes: this.nodeTypes,
nodes: workflowData.activeVersion.nodes,
connections: workflowData.activeVersion.connections,
active: true,
staticData: workflowData.staticData,
settings: workflowData.settings,
});
try {
const failedNode = workflowErrorData.execution?.lastNodeExecuted
? workflowInstance.getNode(workflowErrorData.execution?.lastNodeExecuted)
: undefined;
await this.subworkflowPolicyChecker.check(workflowInstance, workflowErrorData.workflow.id, failedNode ?? undefined);
}
catch (error) {
const initialNode = workflowInstance.getStartNode();
if (initialNode) {
const errorWorkflowPermissionError = new n8n_workflow_1.SubworkflowOperationError(`Another workflow: (ID ${workflowErrorData.workflow.id}) tried to invoke this workflow to handle errors.`, "Unfortunately current permissions do not allow this. Please check that this workflow's settings allow it to be called by others");
const fakeExecution = this.executionDataService.generateFailedExecutionFromError('error', errorWorkflowPermissionError, initialNode);
const fullExecutionData = {
data: fakeExecution.data,
mode: fakeExecution.mode,
finished: false,
stoppedAt: new Date(),
workflowData,
waitTill: null,
status: fakeExecution.status,
workflowId: workflowData.id,
};
await this.executionRepository.createNewExecution(fullExecutionData);
}
this.logger.info('Error workflow execution blocked due to subworkflow settings', {
erroredWorkflowId: workflowErrorData.workflow.id,
errorWorkflowId: workflowId,
});
return;
}
let node;
let workflowStartNode;
const { errorTriggerType } = this.globalConfig.nodes;
for (const nodeName of Object.keys(workflowInstance.nodes)) {
node = workflowInstance.nodes[nodeName];
if (node.type === errorTriggerType) {
workflowStartNode = node;
}
}
if (workflowStartNode === undefined) {
this.logger.error(`Calling Error Workflow for "${workflowErrorData.workflow.id}". Could not find "${errorTriggerType}" in workflow "${workflowId}"`);
return;
}
const parentExecution = workflowErrorData.execution?.id && workflowErrorData.workflow?.id
? {
executionId: workflowErrorData.execution.id,
workflowId: workflowErrorData.workflow.id,
executionContext: workflowErrorData.execution.executionContext,
}
: undefined;
const nodeExecutionStack = [];
nodeExecutionStack.push({
node: workflowStartNode,
data: {
main: [
[
{
json: workflowErrorData,
},
],
],
},
source: null,
...(parentExecution && {
metadata: {
parentExecution,
},
}),
});
const runExecutionData = (0, n8n_workflow_1.createRunExecutionData)({
executionData: {
nodeExecutionStack,
},
});
const runData = {
executionMode,
executionData: runExecutionData,
workflowData,
projectId: runningProject.id,
};
await this.workflowRunner.run(runData);
}
catch (error) {
this.errorReporter.error(error);
this.logger.error(`Calling Error Workflow for "${workflowErrorData.workflow.id}": "${error.message}"`, { workflowId: workflowErrorData.workflow.id });
}
}
selectPinnedTrigger(workflow, destinationNode, pinData) {
const allPinnedTriggers = this.findAllPinnedTriggers(workflow, pinData);
if (allPinnedTriggers.length === 0)
return undefined;
const destinationParents = new Set(new n8n_workflow_1.Workflow({
nodes: workflow.nodes,
connections: workflow.connections,
active: workflow.activeVersionId !== null,
nodeTypes: this.nodeTypes,
}).getParentNodes(destinationNode));
const trigger = allPinnedTriggers.find((a) => destinationParents.has(a.name));
return trigger;
}
findAllPinnedTriggers(workflow, pinData) {
return workflow.nodes
.filter((node) => !node.disabled &&
pinData?.[node.name] &&
['trigger', 'webhook'].some((suffix) => node.type.toLowerCase().endsWith(suffix)) &&
node.type !== 'n8n-nodes-base.respondToWebhook')
.sort((a) => (a.type.endsWith('webhook') ? -1 : 1));
}
partialExecutionFulfilsPreconditions(payload) {
if (this.isDestinationNodeATrigger(payload.destinationNode.nodeName, payload.workflowData)) {
return false;
}
return (0, n8n_core_1.anyReachableRootHasRunData)(n8n_core_1.DirectedGraph.fromNodesAndConnections(payload.workflowData.nodes, payload.workflowData.connections), payload.destinationNode.nodeName, payload.runData);
}
};
exports.WorkflowExecutionService = WorkflowExecutionService;
exports.WorkflowExecutionService = WorkflowExecutionService = __decorate([
(0, di_1.Service)(),
__metadata("design:paramtypes", [backend_common_1.Logger,
n8n_core_1.ErrorReporter,
db_1.ExecutionRepository,
db_1.WorkflowRepository,
node_types_1.NodeTypes,
test_webhooks_1.TestWebhooks,
workflow_runner_1.WorkflowRunner,
config_1.GlobalConfig,
pre_execution_checks_1.SubworkflowPolicyChecker,
execution_data_service_1.ExecutionDataService])
], WorkflowExecutionService);
function isPartialExecution(payload) {
return 'destinationNode' in payload && 'runData' in payload;
}
function isFullExecutionFromKnownTrigger(payload) {
return 'triggerToStartFrom' in payload;
}
function isFullExecutionFromUnknownTrigger(payload) {
if ('triggerToStartFrom' in payload) {
return false;
}
return !('runData' in payload);
}
function triggerHasNoPinnedData(payload) {
return payload.workflowData.pinData?.[payload.triggerToStartFrom.name] === undefined;
}
function upgradeToFullManualExecutionFromUnknownTrigger(payload) {
return {
workflowData: payload.workflowData,
destinationNode: payload.destinationNode,
agentRequest: payload.agentRequest,
};
}
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