@taiga-ui/dompurify
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4.1.10 • Public • Published

NgDompurify

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This library implements DOMPurify as Angular Sanitizer or Pipe. It delegates sanitizing to DOMPurify and supports the same configuration. See DOMPurify.

Read more about Sanitization in Angular and how ng-dompurify works in this article.

Install

npm install @taiga-ui/dompurify

If you do not have dompurify in your package, install also:

npm install dompurify
npm install --save-dev @types/dompurify

How to use

Either use pipe to sanitize your content when binding to [innerHTML] or use NgDompurifySanitizer service manually.

import {NgDompurifyModule} from '@taiga-ui/dompurify';

@NgModule({
  imports: [NgDompurifyModule],
})
export class MyModule {}

As a pipe:

<div [innerHtml]="value | dompurify"></div>

As a service:

import {SecurityContext} from '@angular/core';
import {NgDompurifySanitizer} from '@taiga-ui/dompurify';

@Component({})
export class MyComponent {
  constructor(private readonly dompurifySanitizer: NgDompurifySanitizer) {}

  purify(value: string): string {
    return this.dompurifySanitizer.sanitize(SecurityContext.HTML, value);
  }
}

You can also substitute Angular Sanitizer with DOMPurify so it is automatically used all the time:

import {NgModule, Sanitizer} from '@angular/core';
import {NgDompurifySanitizer} from '@taiga-ui/dompurify';
// ...

@NgModule({
  // ...
  providers: [
    {
      provide: Sanitizer,
      useClass: NgDompurifySanitizer,
    },
  ],
  // ...
})
export class AppModule {}

Configuring

Config for NgDompurifySanitizer or NgDompurifyDomSanitizer can be provided using token DOMPURIFY_CONFIG. NgDompurifyPipe supports passing DOMPurify config as an argument to override config from DI.

import {NgModule, Sanitizer} from '@angular/core';
import {NgDompurifySanitizer, DOMPURIFY_CONFIG} from '@taiga-ui/dompurify';
// ...

@NgModule({
  // ...
  providers: [
    {
      provide: Sanitizer,
      useClass: NgDompurifySanitizer,
    },
    {
      provide: DOMPURIFY_CONFIG,
      useValue: {FORBID_ATTR: ['id']},
    },
  ],
  // ...
})
export class AppModule {}

CSS sanitization

DOMPurify does not support sanitizing CSS. Angular starting version 10 dropped CSS sanitation as something that presents no threat in supported browsers. You can still provide a handler to sanitize CSS rules values upon binding if you want to:

import {NgModule, Sanitizer} from '@angular/core';
import {NgDompurifySanitizer, SANITIZE_STYLE} from '@taiga-ui/dompurify';

@NgModule({
  // ...
  providers: [
    {
      provide: Sanitizer,
      useClass: NgDompurifySanitizer,
    },
    {
      provide: SANITIZE_STYLE,
      useValue: yourImplementation, // <---
    },
  ],
  // ...
})
export class AppModule {}

Hooks

DOMPurify supports various hooks. You can provide them using DOMPURIFY_HOOKS token:

import {NgModule, Sanitizer} from '@angular/core';
import {NgDompurifySanitizer, DOMPURIFY_HOOKS, SANITIZE_STYLE} from '@taiga-ui/dompurify';

@NgModule({
  // ...
  providers: [
    {
      provide: Sanitizer,
      useClass: NgDompurifySanitizer,
    },
    {
      provide: SANITIZE_STYLE,
      useValue: yourImplementation,
    },
    {
      provide: DOMPURIFY_HOOKS,
      useValue: [
        {
          name: 'beforeSanitizeAttributes',
          hook: (node: Element) => {
            node.removeAttribute('id');
          },
        },
      ],
    },
  ],
  // ...
})
export class AppModule {}

Maintained

@taiga-ui/dompurify is a part of Taiga UI libraries family which is backed and used by a large enterprise. This means you can rely on timely support and continuous development.

License

🆓 Feel free to use our library in your commercial and private applications

All @taiga-ui/dompurify packages are covered by Apache 2.0

Read more about this license here

Demo

You can see live demo here: https://stackblitz.com/github/taiga-family/ng-dompurify/tree/master/projects/demo

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Install

npm i @taiga-ui/dompurify

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  • nsbarsukov
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  • defenderbass
  • waterplea
  • vladimir.potekhin