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feat: security implementation in Angular 2.

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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
This commit is contained in:
Martin Probst
2016-04-29 16:04:08 -07:00
parent dd6e0cf1b5
commit 908a102a87
24 changed files with 590 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
modules/@angular/compiler/core_private.ts
View File

@ -37,6 +37,10 @@ export var ValueUnwrapper: typeof t.ValueUnwrapper = r.ValueUnwrapper;
export var TemplateRef_: typeof t.TemplateRef_ = r.TemplateRef_;
export type RenderDebugInfo = t.RenderDebugInfo;
export var RenderDebugInfo: typeof t.RenderDebugInfo = r.RenderDebugInfo;
export var SecurityContext: typeof t.SecurityContext = r.SecurityContext;
export type SecurityContext = t.SecurityContext;
export var SanitizationService: typeof t.SanitizationService = r.SanitizationService;
export type SanitizationService = t.SanitizationService;
export var createProvider: typeof t.createProvider = r.createProvider;
export var isProviderLiteral: typeof t.isProviderLiteral = r.isProviderLiteral;
export var EMPTY_ARRAY: typeof t.EMPTY_ARRAY = r.EMPTY_ARRAY;