n8n
Version:
n8n Workflow Automation Tool
256 lines • 8.99 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.TaskManager = void 0;
const n8n_workflow_1 = require("n8n-workflow");
const nanoid_1 = require("nanoid");
const runner_types_1 = require("../runner-types");
const workflowToParameters = (workflow) => {
return {
id: workflow.id,
name: workflow.name,
active: workflow.active,
connections: workflow.connectionsBySourceNode,
nodes: Object.values(workflow.nodes),
pinData: workflow.pinData,
settings: workflow.settings,
staticData: workflow.staticData,
};
};
class TaskManager {
constructor() {
this.requestAcceptRejects = new Map();
this.taskAcceptRejects = new Map();
this.pendingRequests = new Map();
this.tasks = new Map();
}
async startTask(additionalData, taskType, settings, executeFunctions, inputData, node, workflow, runExecutionData, runIndex, itemIndex, activeNodeName, connectionInputData, siblingParameters, mode, envProviderState, executeData, defaultReturnRunIndex = -1, selfData = {}, contextNodeName = activeNodeName) {
const data = {
workflow,
runExecutionData,
runIndex,
connectionInputData,
inputData,
node,
executeFunctions,
itemIndex,
siblingParameters,
mode,
envProviderState,
executeData,
defaultReturnRunIndex,
selfData,
contextNodeName,
activeNodeName,
additionalData,
};
const request = {
requestId: (0, nanoid_1.nanoid)(),
taskType,
settings,
data,
};
this.pendingRequests.set(request.requestId, request);
const taskIdPromise = new Promise((resolve, reject) => {
this.requestAcceptRejects.set(request.requestId, {
accept: resolve,
reject,
});
});
this.sendMessage({
type: 'requester:taskrequest',
requestId: request.requestId,
taskType,
});
const taskId = await taskIdPromise;
const task = {
taskId,
data,
settings,
};
this.tasks.set(task.taskId, task);
try {
const dataPromise = new Promise((resolve, reject) => {
this.taskAcceptRejects.set(task.taskId, {
accept: resolve,
reject,
});
});
this.sendMessage({
type: 'requester:tasksettings',
taskId,
settings,
});
const resultData = await dataPromise;
if (resultData.customData) {
Object.entries(resultData.customData).forEach(([k, v]) => {
if (!runExecutionData.resultData.metadata) {
runExecutionData.resultData.metadata = {};
}
runExecutionData.resultData.metadata[k] = v;
});
}
return (0, n8n_workflow_1.createResultOk)(resultData.result);
}
catch (e) {
return (0, n8n_workflow_1.createResultError)(e);
}
finally {
this.tasks.delete(taskId);
}
}
sendMessage(_message) { }
onMessage(message) {
switch (message.type) {
case 'broker:taskready':
this.taskReady(message.requestId, message.taskId);
break;
case 'broker:taskdone':
this.taskDone(message.taskId, message.data);
break;
case 'broker:taskerror':
this.taskError(message.taskId, message.error);
break;
case 'broker:taskdatarequest':
this.sendTaskData(message.taskId, message.requestId, message.requestType);
break;
case 'broker:rpc':
void this.handleRpc(message.taskId, message.callId, message.name, message.params);
break;
}
}
taskReady(requestId, taskId) {
const acceptReject = this.requestAcceptRejects.get(requestId);
if (!acceptReject) {
this.rejectTask(taskId, 'Request ID not found. In multi-main setup, it is possible for one of the mains to have reported ready state already.');
return;
}
acceptReject.accept(taskId);
this.requestAcceptRejects.delete(requestId);
}
rejectTask(jobId, reason) {
this.sendMessage({
type: 'requester:taskcancel',
taskId: jobId,
reason,
});
}
taskDone(taskId, data) {
const acceptReject = this.taskAcceptRejects.get(taskId);
if (acceptReject) {
acceptReject.accept(data);
this.taskAcceptRejects.delete(taskId);
}
}
taskError(taskId, error) {
const acceptReject = this.taskAcceptRejects.get(taskId);
if (acceptReject) {
acceptReject.reject(error);
this.taskAcceptRejects.delete(taskId);
}
}
sendTaskData(taskId, requestId, requestType) {
const job = this.tasks.get(taskId);
if (!job) {
return;
}
if (requestType === 'all') {
const jd = job.data;
const ad = jd.additionalData;
const data = {
workflow: workflowToParameters(jd.workflow),
connectionInputData: jd.connectionInputData,
inputData: jd.inputData,
itemIndex: jd.itemIndex,
activeNodeName: jd.activeNodeName,
contextNodeName: jd.contextNodeName,
defaultReturnRunIndex: jd.defaultReturnRunIndex,
mode: jd.mode,
envProviderState: jd.envProviderState,
node: jd.node,
runExecutionData: jd.runExecutionData,
runIndex: jd.runIndex,
selfData: jd.selfData,
siblingParameters: jd.siblingParameters,
executeData: jd.executeData,
additionalData: {
formWaitingBaseUrl: ad.formWaitingBaseUrl,
instanceBaseUrl: ad.instanceBaseUrl,
restApiUrl: ad.restApiUrl,
variables: ad.variables,
webhookBaseUrl: ad.webhookBaseUrl,
webhookTestBaseUrl: ad.webhookTestBaseUrl,
webhookWaitingBaseUrl: ad.webhookWaitingBaseUrl,
currentNodeParameters: ad.currentNodeParameters,
executionId: ad.executionId,
executionTimeoutTimestamp: ad.executionTimeoutTimestamp,
restartExecutionId: ad.restartExecutionId,
userId: ad.userId,
},
};
this.sendMessage({
type: 'requester:taskdataresponse',
taskId,
requestId,
data,
});
}
}
async handleRpc(taskId, callId, name, params) {
const job = this.tasks.get(taskId);
if (!job) {
return;
}
try {
if (!runner_types_1.RPC_ALLOW_LIST.includes(name)) {
this.sendMessage({
type: 'requester:rpcresponse',
taskId,
callId,
status: 'error',
data: 'Method not allowed',
});
return;
}
const splitPath = name.split('.');
const funcs = job.data.executeFunctions;
let func = undefined;
let funcObj = funcs;
for (const part of splitPath) {
funcObj = funcObj[part] ?? undefined;
if (!funcObj) {
break;
}
}
func = funcObj;
if (!func) {
this.sendMessage({
type: 'requester:rpcresponse',
taskId,
callId,
status: 'error',
data: 'Could not find method',
});
return;
}
const data = (await func.call(funcs, ...params));
this.sendMessage({
type: 'requester:rpcresponse',
taskId,
callId,
status: 'success',
data,
});
}
catch (e) {
this.sendMessage({
type: 'requester:rpcresponse',
taskId,
callId,
status: 'error',
data: e,
});
}
}
}
exports.TaskManager = TaskManager;
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