https://github.com/apostrophecms-legacy/apostrophe-forms-regexp-text-field-widgets

Text fields that safely allow custom regular expression checks, for Apostrophe Forms
https://github.com/apostrophecms-legacy/apostrophe-forms-regexp-text-field-widgets

Last synced: 1 day ago
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Text fields that safely allow custom regular expression checks, for Apostrophe Forms

• Host: GitHub
• URL: https://github.com/apostrophecms-legacy/apostrophe-forms-regexp-text-field-widgets
• Owner: apostrophecms-legacy
• Created: 2020-07-15T19:15:10.000Z (over 4 years ago)
• Default Branch: main
• Last Pushed: 2020-07-21T13:34:10.000Z (over 4 years ago)
• Last Synced: 2024-12-26T11:08:08.514Z (1 day ago)
• Language: JavaScript
• Homepage:
• Size: 5.86 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md

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README

        
This module adds a new type of text field that allows the admin to specify their own regular expression. It is meant for use alongside the `apostrophe-forms` module.

## Configuration

```javascript

// in app.js

modules: {

  'apostrophe-forms': {

    formWidgets: {

      // other fields go here

      'apostrophe-forms-regexp-text-field': {}

    }

  },

  'apostrophe-forms-regexp-text-field-widgets'

}

```

## Preventing DOS (Denial of Service) attacks

Since [many regular expressions can run for hours on malicious input](https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS), which could completely block the site, this module uses the [time-limited-regular-expressions](https://github.com/apostrophecms/time-limited-regular-expressions) module to limit the runtime to one-quarter second. This will not be an issue on reasonable input. If you do get a timeout message when testing your form, you should write a more efficient regular expression.