Windows Scheduler

A nodejs wrapper for native windows schtasks command.
The context under which the tasks runs is setted to SYSTEM user, otherwise every change on a task must be authenticated interactively.
For Windows XP and Windows Server 2003, or previous, there are options not supported.
More info msdn.microsoft.com/Schtasks.exe

Improvement

1. Disable the parameters check of start_date and end_date since the valid date formats depend on the setting of the Short date in Regional and Language Options.
2. Try the hide the cmd window when trying to execute the commands.
3. create a task by loading a xml file
4. Running the task under currentUser with highest highest privilege.

Usage

Install

    npm i windows-scheduler

Test

    \some\dir\windows-scheduler\ npm test

Examples

const task = require('windows-scheduler')

// Promise like
task.create('test-task', 'path/to/task.exe', { frequency: 'WEEKLY' })
.then( () => {
    // Do something
})
.catch( (err) => {
    // taskname already exists
    // error during creation
})

// Async-Await like
(async function(){
    try{
        await task.delete('test-task')
    } catch (err) {
        // unexisting taskname
    }
})()

Schedule examples

// every minute during business hours starting from 17th November 2017
await task.create('test', 'run.exe', 
    { 
        frequency: 'MINUTE',
        starttime: '09:00',
        endtime: '18:00',
        startdate: '17/11/2017'
    })

// every 12 days at 13:00 beginning on 31th December 2017
await task.create('test', 'run.exe', 
    { 
        frequency: 'DAILY',
        modifier: 12,
        startdate: '31/12/2017',
        starttime: '13:00'
    })

// every 15 minute during business hours of every 10th of every month
await task.create('test', 'run.exe', 
    { 
        frequency: 'MONTHLY',
        every: 15,
        day: 10,
        starttime: '09:00',
        endtime: '18:00'
    })

// at midnight on mondays of every other week 
await task.create('test', 'run.exe', 
    { 
        frequency: 'WEEKLY',
        modifier: 2,
        day: 'MON',
        starttime: '00:00'
    })

Create

Schedule a new task.

function create(taskname, taskrun, schedule) {}

params {
    taskname : '<string> (required) min length 3',
    taskrun :  '<string> (required) ',
    schedule : {
        frequency : '<string> (required) allowed [MINUTE, HOURLY, DAILY, WEEKLY, MONTHLY]',
        modifier :  '<number> allowed [1439, 23, 365, 52, 12]',
        day :       '<string/number> allowed [*, MON, TUE, WED, THU, FRI, SAT, SUN]',
        month :     '<string> allowed [*, JAN, FEB, MAR, APR, MAY, JUN, JUL, AUG, SEP, OCT, NOV, DEC]',
        starttime : '<string> format HH:mm',
        endtime :   '<string> format HH:mm',
        every :     '<number> 1 <= every <=599940',
        startdate : '<string> format DD/MM/YYYY',
        enddate :   '<string> format DD/MM/YYYY',
        asUser: true,
        highlevel: true,
    }
}

Older version of windows can't use params 'every' and 'endtime'.
The param 'modifier' refines the schedule type to allow for finer control over the schedule recurrence.
The param 'every' specifies the repetition interval in minutes.
The param 'day' is a number for 'MONTHLY' frequency, otherwise is 3-letters coded. The param 'asUser' is a boolean which enable run the task using current user account. The param 'highlevel' is a boolean which enable run the task with highest privilege.

load

Load a xml file to create a task. You can export the xml file from the Windows Task Scheduler

function load(taskname, xmlPath) {}

params {
    taskname : '<string> (required) min length 3',
    xmlPath :  'path to the XML file containing the task definition',
} 

Get

Show one or more scheduled task.

function get(taskname, format, verbose) {}

params {
    taskname : '<string> min length 3',
    format   : '<string> allowed [TABLE, LIST, CSV]',
    verbose  : '<boolean>'
}

Older version of windows can't use param 'taskname'. If noone param is given, it returns all the tasks.

Update

Change a scheduled task.

function update(taskname, taskrun, schedule, enable) {}

params {
    taskname : '<string> (required) min length 3',
    taskrun :  '<string> ',
    schedule : {
        starttime : '<string> format HH:mm',
        endtime :   '<string> format HH:mm',
        every :     '<number> 1 <= every <=599940',
        startdate : '<string> format DD/MM/YYYY',
        enddate :   '<string> format DD/MM/YYYY'
    },
    enable :  '<boolean>'
}

Older version of windows can use only param 'taskrun'.
At least one of 'taskrun', 'schedule' or 'enable' must be setted.

Delete

Delete a scheduled task.

function delete(taskname) {}

params {
    taskname : '<string> (required) min length 3',
}

Run

Immediately run a scheduled task.

function run(taskname) {}

params {
    taskname : '<string> (required) min length 3',
}

End

Stop a running task.

function end(taskname) {}

params {
    taskname : '<string> (required) min length 3',
}

MIT License

Copyright (c) 2017 Andrea Franchini

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.