Is it possible in Node.js to detect if code executes some other script/file
Imagine this code:
const myFunc = () => exec('node foo.js')
Now my library executes myFunc, but it doesn't know if it executes another script. How to make it know it?
P.S. The lib, which is a test runner + coverage tool, needs to know every piece of code that was run by the test.
node.js
asked Nov 10 at 0:57
Nurbol Alpysbayev
3,4191225
add a comment |
Imagine this code:
const myFunc = () => exec('node foo.js')
Now my library executes myFunc, but it doesn't know if it executes another script. How to make it know it?
P.S. The lib, which is a test runner + coverage tool, needs to know every piece of code that was run by the test.
node.js
asked Nov 10 at 0:57
Nurbol Alpysbayev
3,4191225
Why does the lib need to 'know' this? This is none of its concern. A function is a function.
– estus
Nov 10 at 6:55
The lib, which is a test runner + coverage tool, needs to know every piece of code that was run by the test. This is a simplified description.
– Nurbol Alpysbayev
Nov 10 at 7:13
Consider updating the question with relevant details, so it would be clearer for users who may have the same problem.
– estus
Nov 10 at 7:21
add a comment |
Imagine this code:
const myFunc = () => exec('node foo.js')
Now my library executes myFunc, but it doesn't know if it executes another script. How to make it know it?
P.S. The lib, which is a test runner + coverage tool, needs to know every piece of code that was run by the test.
node.js
asked Nov 10 at 0:57
Nurbol Alpysbayev
3,4191225
Imagine this code:
const myFunc = () => exec('node foo.js')
Now my library executes myFunc, but it doesn't know if it executes another script. How to make it know it?
P.S. The lib, which is a test runner + coverage tool, needs to know every piece of code that was run by the test.
node.js
node.js
asked Nov 10 at 0:57
Nurbol Alpysbayev
3,4191225
asked Nov 10 at 0:57
Nurbol Alpysbayev
3,4191225
edited Nov 10 at 7:33
asked Nov 10 at 0:57
Nurbol Alpysbayev
3,4191225
asked Nov 10 at 0:57
Nurbol Alpysbayev
3,4191225
asked Nov 10 at 0:57
Nurbol Alpysbayev
3,4191225
3,4191225
Why does the lib need to 'know' this? This is none of its concern. A function is a function.
– estus
Nov 10 at 6:55
The lib, which is a test runner + coverage tool, needs to know every piece of code that was run by the test. This is a simplified description.
– Nurbol Alpysbayev
Nov 10 at 7:13
Consider updating the question with relevant details, so it would be clearer for users who may have the same problem.
– estus
Nov 10 at 7:21
add a comment |
Why does the lib need to 'know' this? This is none of its concern. A function is a function.
– estus
Nov 10 at 6:55
The lib, which is a test runner + coverage tool, needs to know every piece of code that was run by the test. This is a simplified description.
– Nurbol Alpysbayev
Nov 10 at 7:13
Consider updating the question with relevant details, so it would be clearer for users who may have the same problem.
– estus
Nov 10 at 7:21
Why does the lib need to 'know' this? This is none of its concern. A function is a function.
– estus
Nov 10 at 6:55
Why does the lib need to 'know' this? This is none of its concern. A function is a function.
– estus
Nov 10 at 6:55
The lib, which is a test runner + coverage tool, needs to know every piece of code that was run by the test. This is a simplified description.
– Nurbol Alpysbayev
Nov 10 at 7:13
The lib, which is a test runner + coverage tool, needs to know every piece of code that was run by the test. This is a simplified description.
– Nurbol Alpysbayev
Nov 10 at 7:13
Consider updating the question with relevant details, so it would be clearer for users who may have the same problem.
– estus
Nov 10 at 7:21
Consider updating the question with relevant details, so it would be clearer for users who may have the same problem.
– estus
Nov 10 at 7:21
add a comment |
1 Answer
1
active
oldest
votes
If there's a need to detect API calls that may result in uncontrolled script execution and there's a need to detect calls, APIs have to be patched, e.g.:
const childProcess = require('child_process');
const exec = childProcess;
childProcess.exec = function ()
console.error(new Error('No coverage'));
return exec.apply(this, arguments);
;
This applies to global.eval, global.Function, all child_process module functions, some vm and worker_threads functions.
answered Nov 10 at 7:28
estus
66.8k2198210
Wow, I always over-engineer things, when indeed this (patching/decorating) can be done! Great idea, thanks! And listing possible patch-ables is very good!
– Nurbol Alpysbayev
Nov 10 at 7:32
Glad it helped.
– estus
Nov 10 at 7:36
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
If there's a need to detect API calls that may result in uncontrolled script execution and there's a need to detect calls, APIs have to be patched, e.g.:
const childProcess = require('child_process');
const exec = childProcess;
childProcess.exec = function ()
console.error(new Error('No coverage'));
return exec.apply(this, arguments);
;
This applies to global.eval, global.Function, all child_process module functions, some vm and worker_threads functions.
answered Nov 10 at 7:28
estus
66.8k2198210
Wow, I always over-engineer things, when indeed this (patching/decorating) can be done! Great idea, thanks! And listing possible patch-ables is very good!
– Nurbol Alpysbayev
Nov 10 at 7:32
Glad it helped.
– estus
Nov 10 at 7:36
add a comment |
If there's a need to detect API calls that may result in uncontrolled script execution and there's a need to detect calls, APIs have to be patched, e.g.:
const childProcess = require('child_process');
const exec = childProcess;
childProcess.exec = function ()
console.error(new Error('No coverage'));
return exec.apply(this, arguments);
;
This applies to global.eval, global.Function, all child_process module functions, some vm and worker_threads functions.
answered Nov 10 at 7:28
estus
66.8k2198210
Wow, I always over-engineer things, when indeed this (patching/decorating) can be done! Great idea, thanks! And listing possible patch-ables is very good!
– Nurbol Alpysbayev
Nov 10 at 7:32
Glad it helped.
– estus
Nov 10 at 7:36
add a comment |
If there's a need to detect API calls that may result in uncontrolled script execution and there's a need to detect calls, APIs have to be patched, e.g.:
const childProcess = require('child_process');
const exec = childProcess;
childProcess.exec = function ()
console.error(new Error('No coverage'));
return exec.apply(this, arguments);
;
This applies to global.eval, global.Function, all child_process module functions, some vm and worker_threads functions.
answered Nov 10 at 7:28
estus
66.8k2198210
If there's a need to detect API calls that may result in uncontrolled script execution and there's a need to detect calls, APIs have to be patched, e.g.:
const childProcess = require('child_process');
const exec = childProcess;
childProcess.exec = function ()
console.error(new Error('No coverage'));
return exec.apply(this, arguments);
;
This applies to global.eval, global.Function, all child_process module functions, some vm and worker_threads functions.
answered Nov 10 at 7:28
estus
66.8k2198210
answered Nov 10 at 7:28
estus
66.8k2198210
answered Nov 10 at 7:28
estus
66.8k2198210
answered Nov 10 at 7:28
estus
66.8k2198210
66.8k2198210
Wow, I always over-engineer things, when indeed this (patching/decorating) can be done! Great idea, thanks! And listing possible patch-ables is very good!
– Nurbol Alpysbayev
Nov 10 at 7:32
Glad it helped.
– estus
Nov 10 at 7:36
add a comment |
Wow, I always over-engineer things, when indeed this (patching/decorating) can be done! Great idea, thanks! And listing possible patch-ables is very good!
– Nurbol Alpysbayev
Nov 10 at 7:32
Glad it helped.
– estus
Nov 10 at 7:36
Wow, I always over-engineer things, when indeed this (patching/decorating) can be done! Great idea, thanks! And listing possible patch-ables is very good!
– Nurbol Alpysbayev
Nov 10 at 7:32
Wow, I always over-engineer things, when indeed this (patching/decorating) can be done! Great idea, thanks! And listing possible patch-ables is very good!
– Nurbol Alpysbayev
Nov 10 at 7:32
Glad it helped.
– estus
Nov 10 at 7:36
Glad it helped.
– estus
Nov 10 at 7:36
add a comment |
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Why does the lib need to 'know' this? This is none of its concern. A function is a function.
– estus
Nov 10 at 6:55
The lib, which is a test runner + coverage tool, needs to know every piece of code that was run by the test. This is a simplified description.
– Nurbol Alpysbayev
Nov 10 at 7:13
Consider updating the question with relevant details, so it would be clearer for users who may have the same problem.
– estus
Nov 10 at 7:21