Martin Probst 908a102a87 feat: security implementation in Angular 2.
Summary:
This adds basic security hooks to Angular 2.

* `SecurityContext` is a private API between core, compiler, and
  platform-browser. `SecurityContext` communicates what context a value is used
  in across template parser, compiler, and sanitization at runtime.
* `SanitizationService` is the bare bones interface to sanitize values for a
  particular context.
* `SchemaElementRegistry.securityContext(tagName, attributeOrPropertyName)`
  determines the security context for an attribute or property (it turns out
  attributes and properties match for the purposes of sanitization).

Based on these hooks:

* `DomSchemaElementRegistry` decides what sanitization applies in a particular
  context.
* `DomSanitizationService` implements `SanitizationService` and adds *Safe
  Value*s, i.e. the ability to mark a value as safe and not requiring further
  sanitization.
* `url_sanitizer` and `style_sanitizer` sanitize URLs and Styles, respectively
  (surprise!).

`DomSanitizationService` is the default implementation bound for browser
applications, in the three contexts (browser rendering, web worker rendering,
server side rendering).

BREAKING CHANGES:
*** SECURITY WARNING ***
Angular 2 Release Candidates do not implement proper contextual escaping yet.
Make sure to correctly escape all values that go into the DOM.
*** SECURITY WARNING ***

Reviewers: IgorMinar

Differential Revision: https://reviews.angular.io/D103
2016-05-03 09:21:43 -07:00

46 lines
1.2 KiB
TypeScript

import {
ReflectiveInjector,
PlatformRef,
getPlatform,
createPlatform,
assertPlatform
} from '@angular/core';
import {isBlank} from './facade/lang';
import {BROWSER_PROVIDERS, BROWSER_PLATFORM_MARKER} from './browser_common';
export {DomEventsPlugin} from './dom/events/dom_events';
export {EventManager, EVENT_MANAGER_PLUGINS} from './dom/events/event_manager';
export {ELEMENT_PROBE_PROVIDERS} from './dom/debug/ng_probe';
export {
BROWSER_APP_COMMON_PROVIDERS,
BROWSER_SANITIZATION_PROVIDERS,
BROWSER_PROVIDERS,
By,
Title,
enableDebugTools,
disableDebugTools,
HAMMER_GESTURE_CONFIG,
HammerGestureConfig
} from './browser_common';
export * from '../private_export';
export {DOCUMENT} from './dom/dom_tokens';
export {DomSanitizationService, SecurityContext} from './security/dom_sanitization_service';
export {
bootstrapStatic,
browserStaticPlatform,
BROWSER_APP_STATIC_PROVIDERS,
BrowserPlatformLocation
} from './platform_browser_static';
export function browserPlatform(): PlatformRef {
if (isBlank(getPlatform())) {
createPlatform(ReflectiveInjector.resolveAndCreate(BROWSER_PROVIDERS));
}
return assertPlatform(BROWSER_PLATFORM_MARKER);
}