@angular/core
Version:
Angular - the core framework
209 lines • 24.6 kB
JavaScript
/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import { SANITIZER } from '../render3/interfaces/view';
import { getLView } from '../render3/state';
import { renderStringify } from '../render3/util/misc_utils';
import { allowSanitizationBypass } from './bypass';
import { _sanitizeHtml as _sanitizeHtml } from './html_sanitizer';
import { SecurityContext } from './security';
import { _sanitizeStyle as _sanitizeStyle } from './style_sanitizer';
import { _sanitizeUrl as _sanitizeUrl } from './url_sanitizer';
/**
* An `html` sanitizer which converts untrusted `html` **string** into trusted string by removing
* dangerous content.
*
* This method parses the `html` and locates potentially dangerous content (such as urls and
* javascript) and removes it.
*
* It is possible to mark a string as trusted by calling {@link bypassSanitizationTrustHtml}.
*
* @param unsafeHtml untrusted `html`, typically from the user.
* @returns `html` string which is safe to display to user, because all of the dangerous javascript
* and urls have been removed.
*
* @publicApi
*/
export function ɵɵsanitizeHtml(unsafeHtml) {
var sanitizer = getSanitizer();
if (sanitizer) {
return sanitizer.sanitize(SecurityContext.HTML, unsafeHtml) || '';
}
if (allowSanitizationBypass(unsafeHtml, "Html" /* Html */)) {
return unsafeHtml.toString();
}
return _sanitizeHtml(document, renderStringify(unsafeHtml));
}
/**
* A `style` sanitizer which converts untrusted `style` **string** into trusted string by removing
* dangerous content.
*
* This method parses the `style` and locates potentially dangerous content (such as urls and
* javascript) and removes it.
*
* It is possible to mark a string as trusted by calling {@link bypassSanitizationTrustStyle}.
*
* @param unsafeStyle untrusted `style`, typically from the user.
* @returns `style` string which is safe to bind to the `style` properties, because all of the
* dangerous javascript and urls have been removed.
*
* @publicApi
*/
export function ɵɵsanitizeStyle(unsafeStyle) {
var sanitizer = getSanitizer();
if (sanitizer) {
return sanitizer.sanitize(SecurityContext.STYLE, unsafeStyle) || '';
}
if (allowSanitizationBypass(unsafeStyle, "Style" /* Style */)) {
return unsafeStyle.toString();
}
return _sanitizeStyle(renderStringify(unsafeStyle));
}
/**
* A `url` sanitizer which converts untrusted `url` **string** into trusted string by removing
* dangerous
* content.
*
* This method parses the `url` and locates potentially dangerous content (such as javascript) and
* removes it.
*
* It is possible to mark a string as trusted by calling {@link bypassSanitizationTrustUrl}.
*
* @param unsafeUrl untrusted `url`, typically from the user.
* @returns `url` string which is safe to bind to the `src` properties such as `<img src>`, because
* all of the dangerous javascript has been removed.
*
* @publicApi
*/
export function ɵɵsanitizeUrl(unsafeUrl) {
var sanitizer = getSanitizer();
if (sanitizer) {
return sanitizer.sanitize(SecurityContext.URL, unsafeUrl) || '';
}
if (allowSanitizationBypass(unsafeUrl, "Url" /* Url */)) {
return unsafeUrl.toString();
}
return _sanitizeUrl(renderStringify(unsafeUrl));
}
/**
* A `url` sanitizer which only lets trusted `url`s through.
*
* This passes only `url`s marked trusted by calling {@link bypassSanitizationTrustResourceUrl}.
*
* @param unsafeResourceUrl untrusted `url`, typically from the user.
* @returns `url` string which is safe to bind to the `src` properties such as `<img src>`, because
* only trusted `url`s have been allowed to pass.
*
* @publicApi
*/
export function ɵɵsanitizeResourceUrl(unsafeResourceUrl) {
var sanitizer = getSanitizer();
if (sanitizer) {
return sanitizer.sanitize(SecurityContext.RESOURCE_URL, unsafeResourceUrl) || '';
}
if (allowSanitizationBypass(unsafeResourceUrl, "ResourceUrl" /* ResourceUrl */)) {
return unsafeResourceUrl.toString();
}
throw new Error('unsafe value used in a resource URL context (see http://g.co/ng/security#xss)');
}
/**
* A `script` sanitizer which only lets trusted javascript through.
*
* This passes only `script`s marked trusted by calling {@link
* bypassSanitizationTrustScript}.
*
* @param unsafeScript untrusted `script`, typically from the user.
* @returns `url` string which is safe to bind to the `<script>` element such as `<img src>`,
* because only trusted `scripts` have been allowed to pass.
*
* @publicApi
*/
export function ɵɵsanitizeScript(unsafeScript) {
var sanitizer = getSanitizer();
if (sanitizer) {
return sanitizer.sanitize(SecurityContext.SCRIPT, unsafeScript) || '';
}
if (allowSanitizationBypass(unsafeScript, "Script" /* Script */)) {
return unsafeScript.toString();
}
throw new Error('unsafe value used in a script context');
}
/**
* Detects which sanitizer to use for URL property, based on tag name and prop name.
*
* The rules are based on the RESOURCE_URL context config from
* `packages/compiler/src/schema/dom_security_schema.ts`.
* If tag and prop names don't match Resource URL schema, use URL sanitizer.
*/
export function getUrlSanitizer(tag, prop) {
if ((prop === 'src' && (tag === 'embed' || tag === 'frame' || tag === 'iframe' ||
tag === 'media' || tag === 'script')) ||
(prop === 'href' && (tag === 'base' || tag === 'link'))) {
return ɵɵsanitizeResourceUrl;
}
return ɵɵsanitizeUrl;
}
/**
* Sanitizes URL, selecting sanitizer function based on tag and property names.
*
* This function is used in case we can't define security context at compile time, when only prop
* name is available. This happens when we generate host bindings for Directives/Components. The
* host element is unknown at compile time, so we defer calculation of specific sanitizer to
* runtime.
*
* @param unsafeUrl untrusted `url`, typically from the user.
* @param tag target element tag name.
* @param prop name of the property that contains the value.
* @returns `url` string which is safe to bind.
*
* @publicApi
*/
export function ɵɵsanitizeUrlOrResourceUrl(unsafeUrl, tag, prop) {
return getUrlSanitizer(tag, prop)(unsafeUrl);
}
/**
* The default style sanitizer will handle sanitization for style properties by
* sanitizing any CSS property that can include a `url` value (usually image-based properties)
*
* @publicApi
*/
export var ɵɵdefaultStyleSanitizer = function (prop, value, mode) {
mode = mode || 3 /* ValidateAndSanitize */;
var doSanitizeValue = true;
if (mode & 1 /* ValidateProperty */) {
doSanitizeValue = prop === 'background-image' || prop === 'background' ||
prop === 'border-image' || prop === 'filter' || prop === 'list-style' ||
prop === 'list-style-image' || prop === 'clip-path';
}
if (mode & 2 /* SanitizeOnly */) {
return doSanitizeValue ? ɵɵsanitizeStyle(value) : value;
}
else {
return doSanitizeValue;
}
};
export function validateAgainstEventProperties(name) {
if (name.toLowerCase().startsWith('on')) {
var msg = "Binding to event property '" + name + "' is disallowed for security reasons, " +
("please use (" + name.slice(2) + ")=...") +
("\nIf '" + name + "' is a directive input, make sure the directive is imported by the") +
" current module.";
throw new Error(msg);
}
}
export function validateAgainstEventAttributes(name) {
if (name.toLowerCase().startsWith('on')) {
var msg = "Binding to event attribute '" + name + "' is disallowed for security reasons, " +
("please use (" + name.slice(2) + ")=...");
throw new Error(msg);
}
}
function getSanitizer() {
var lView = getLView();
return lView && lView[SANITIZER];
}
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"sanitization.js","sourceRoot":"","sources":["../../../../../../../../../../packages/core/src/sanitization/sanitization.ts"],"names":[],"mappings":"AAAA;;;;;;GAMG;AAEH,OAAO,EAAC,SAAS,EAAC,MAAM,4BAA4B,CAAC;AACrD,OAAO,EAAC,QAAQ,EAAC,MAAM,kBAAkB,CAAC;AAC1C,OAAO,EAAC,eAAe,EAAC,MAAM,4BAA4B,CAAC;AAE3D,OAAO,EAAa,uBAAuB,EAAC,MAAM,UAAU,CAAC;AAC7D,OAAO,EAAC,aAAa,IAAI,aAAa,EAAC,MAAM,kBAAkB,CAAC;AAChE,OAAO,EAAY,eAAe,EAAC,MAAM,YAAY,CAAC;AACtD,OAAO,EAAqC,cAAc,IAAI,cAAc,EAAC,MAAM,mBAAmB,CAAC;AACvG,OAAO,EAAC,YAAY,IAAI,YAAY,EAAC,MAAM,iBAAiB,CAAC;AAI7D;;;;;;;;;;;;;;GAcG;AACH,MAAM,UAAU,cAAc,CAAC,UAAe;IAC5C,IAAM,SAAS,GAAG,YAAY,EAAE,CAAC;IACjC,IAAI,SAAS,EAAE;QACb,OAAO,SAAS,CAAC,QAAQ,CAAC,eAAe,CAAC,IAAI,EAAE,UAAU,CAAC,IAAI,EAAE,CAAC;KACnE;IACD,IAAI,uBAAuB,CAAC,UAAU,oBAAkB,EAAE;QACxD,OAAO,UAAU,CAAC,QAAQ,EAAE,CAAC;KAC9B;IACD,OAAO,aAAa,CAAC,QAAQ,EAAE,eAAe,CAAC,UAAU,CAAC,CAAC,CAAC;AAC9D,CAAC;AAED;;;;;;;;;;;;;;GAcG;AACH,MAAM,UAAU,eAAe,CAAC,WAAgB;IAC9C,IAAM,SAAS,GAAG,YAAY,EAAE,CAAC;IACjC,IAAI,SAAS,EAAE;QACb,OAAO,SAAS,CAAC,QAAQ,CAAC,eAAe,CAAC,KAAK,EAAE,WAAW,CAAC,IAAI,EAAE,CAAC;KACrE;IACD,IAAI,uBAAuB,CAAC,WAAW,sBAAmB,EAAE;QAC1D,OAAO,WAAW,CAAC,QAAQ,EAAE,CAAC;KAC/B;IACD,OAAO,cAAc,CAAC,eAAe,CAAC,WAAW,CAAC,CAAC,CAAC;AACtD,CAAC;AAED;;;;;;;;;;;;;;;GAeG;AACH,MAAM,UAAU,aAAa,CAAC,SAAc;IAC1C,IAAM,SAAS,GAAG,YAAY,EAAE,CAAC;IACjC,IAAI,SAAS,EAAE;QACb,OAAO,SAAS,CAAC,QAAQ,CAAC,eAAe,CAAC,GAAG,EAAE,SAAS,CAAC,IAAI,EAAE,CAAC;KACjE;IACD,IAAI,uBAAuB,CAAC,SAAS,kBAAiB,EAAE;QACtD,OAAO,SAAS,CAAC,QAAQ,EAAE,CAAC;KAC7B;IACD,OAAO,YAAY,CAAC,eAAe,CAAC,SAAS,CAAC,CAAC,CAAC;AAClD,CAAC;AAED;;;;;;;;;;GAUG;AACH,MAAM,UAAU,qBAAqB,CAAC,iBAAsB;IAC1D,IAAM,SAAS,GAAG,YAAY,EAAE,CAAC;IACjC,IAAI,SAAS,EAAE;QACb,OAAO,SAAS,CAAC,QAAQ,CAAC,eAAe,CAAC,YAAY,EAAE,iBAAiB,CAAC,IAAI,EAAE,CAAC;KAClF;IACD,IAAI,uBAAuB,CAAC,iBAAiB,kCAAyB,EAAE;QACtE,OAAO,iBAAiB,CAAC,QAAQ,EAAE,CAAC;KACrC;IACD,MAAM,IAAI,KAAK,CAAC,+EAA+E,CAAC,CAAC;AACnG,CAAC;AAED;;;;;;;;;;;GAWG;AACH,MAAM,UAAU,gBAAgB,CAAC,YAAiB;IAChD,IAAM,SAAS,GAAG,YAAY,EAAE,CAAC;IACjC,IAAI,SAAS,EAAE;QACb,OAAO,SAAS,CAAC,QAAQ,CAAC,eAAe,CAAC,MAAM,EAAE,YAAY,CAAC,IAAI,EAAE,CAAC;KACvE;IACD,IAAI,uBAAuB,CAAC,YAAY,wBAAoB,EAAE;QAC5D,OAAO,YAAY,CAAC,QAAQ,EAAE,CAAC;KAChC;IACD,MAAM,IAAI,KAAK,CAAC,uCAAuC,CAAC,CAAC;AAC3D,CAAC;AAED;;;;;;GAMG;AACH,MAAM,UAAU,eAAe,CAAC,GAAW,EAAE,IAAY;IACvD,IAAI,CAAC,IAAI,KAAK,KAAK,IAAI,CAAC,GAAG,KAAK,OAAO,IAAI,GAAG,KAAK,OAAO,IAAI,GAAG,KAAK,QAAQ;QACtD,GAAG,KAAK,OAAO,IAAI,GAAG,KAAK,QAAQ,CAAC,CAAC;QACzD,CAAC,IAAI,KAAK,MAAM,IAAI,CAAC,GAAG,KAAK,MAAM,IAAI,GAAG,KAAK,MAAM,CAAC,CAAC,EAAE;QAC3D,OAAO,qBAAqB,CAAC;KAC9B;IACD,OAAO,aAAa,CAAC;AACvB,CAAC;AAED;;;;;;;;;;;;;;GAcG;AACH,MAAM,UAAU,0BAA0B,CAAC,SAAc,EAAE,GAAW,EAAE,IAAY;IAClF,OAAO,eAAe,CAAC,GAAG,EAAE,IAAI,CAAC,CAAC,SAAS,CAAC,CAAC;AAC/C,CAAC;AAED;;;;;GAKG;AACH,MAAM,CAAC,IAAM,uBAAuB,GAC/B,UAAS,IAAY,EAAE,KAAkB,EAAE,IAAwB;IAClE,IAAI,GAAG,IAAI,+BAAyC,CAAC;IACrD,IAAI,eAAe,GAAG,IAAI,CAAC;IAC3B,IAAI,IAAI,2BAAqC,EAAE;QAC7C,eAAe,GAAG,IAAI,KAAK,kBAAkB,IAAI,IAAI,KAAK,YAAY;YAClE,IAAI,KAAK,cAAc,IAAI,IAAI,KAAK,QAAQ,IAAI,IAAI,KAAK,YAAY;YACrE,IAAI,KAAK,kBAAkB,IAAI,IAAI,KAAK,WAAW,CAAC;KACzD;IAED,IAAI,IAAI,uBAAiC,EAAE;QACzC,OAAO,eAAe,CAAC,CAAC,CAAC,eAAe,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC,KAAK,CAAC;KACzD;SAAM;QACL,OAAO,eAAe,CAAC;KACxB;AACH,CAAqB,CAAC;AAE1B,MAAM,UAAU,8BAA8B,CAAC,IAAY;IACzD,IAAI,IAAI,CAAC,WAAW,EAAE,CAAC,UAAU,CAAC,IAAI,CAAC,EAAE;QACvC,IAAM,GAAG,GAAG,gCAA8B,IAAI,2CAAwC;aAClF,iBAAe,IAAI,CAAC,KAAK,CAAC,CAAC,CAAC,UAAO,CAAA;aACnC,WAAS,IAAI,uEAAoE,CAAA;YACjF,kBAAkB,CAAC;QACvB,MAAM,IAAI,KAAK,CAAC,GAAG,CAAC,CAAC;KACtB;AACH,CAAC;AAED,MAAM,UAAU,8BAA8B,CAAC,IAAY;IACzD,IAAI,IAAI,CAAC,WAAW,EAAE,CAAC,UAAU,CAAC,IAAI,CAAC,EAAE;QACvC,IAAM,GAAG,GAAG,iCAA+B,IAAI,2CAAwC;aACnF,iBAAe,IAAI,CAAC,KAAK,CAAC,CAAC,CAAC,UAAO,CAAA,CAAC;QACxC,MAAM,IAAI,KAAK,CAAC,GAAG,CAAC,CAAC;KACtB;AACH,CAAC;AAED,SAAS,YAAY;IACnB,IAAM,KAAK,GAAG,QAAQ,EAAE,CAAC;IACzB,OAAO,KAAK,IAAI,KAAK,CAAC,SAAS,CAAC,CAAC;AACnC,CAAC","sourcesContent":["/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {SANITIZER} from '../render3/interfaces/view';\nimport {getLView} from '../render3/state';\nimport {renderStringify} from '../render3/util/misc_utils';\n\nimport {BypassType, allowSanitizationBypass} from './bypass';\nimport {_sanitizeHtml as _sanitizeHtml} from './html_sanitizer';\nimport {Sanitizer, SecurityContext} from './security';\nimport {StyleSanitizeFn, StyleSanitizeMode, _sanitizeStyle as _sanitizeStyle} from './style_sanitizer';\nimport {_sanitizeUrl as _sanitizeUrl} from './url_sanitizer';\n\n\n\n/**\n * An `html` sanitizer which converts untrusted `html` **string** into trusted string by removing\n * dangerous content.\n *\n * This method parses the `html` and locates potentially dangerous content (such as urls and\n * javascript) and removes it.\n *\n * It is possible to mark a string as trusted by calling {@link bypassSanitizationTrustHtml}.\n *\n * @param unsafeHtml untrusted `html`, typically from the user.\n * @returns `html` string which is safe to display to user, because all of the dangerous javascript\n * and urls have been removed.\n *\n * @publicApi\n */\nexport function ɵɵsanitizeHtml(unsafeHtml: any): string {\n  const sanitizer = getSanitizer();\n  if (sanitizer) {\n    return sanitizer.sanitize(SecurityContext.HTML, unsafeHtml) || '';\n  }\n  if (allowSanitizationBypass(unsafeHtml, BypassType.Html)) {\n    return unsafeHtml.toString();\n  }\n  return _sanitizeHtml(document, renderStringify(unsafeHtml));\n}\n\n/**\n * A `style` sanitizer which converts untrusted `style` **string** into trusted string by removing\n * dangerous content.\n *\n * This method parses the `style` and locates potentially dangerous content (such as urls and\n * javascript) and removes it.\n *\n * It is possible to mark a string as trusted by calling {@link bypassSanitizationTrustStyle}.\n *\n * @param unsafeStyle untrusted `style`, typically from the user.\n * @returns `style` string which is safe to bind to the `style` properties, because all of the\n * dangerous javascript and urls have been removed.\n *\n * @publicApi\n */\nexport function ɵɵsanitizeStyle(unsafeStyle: any): string {\n  const sanitizer = getSanitizer();\n  if (sanitizer) {\n    return sanitizer.sanitize(SecurityContext.STYLE, unsafeStyle) || '';\n  }\n  if (allowSanitizationBypass(unsafeStyle, BypassType.Style)) {\n    return unsafeStyle.toString();\n  }\n  return _sanitizeStyle(renderStringify(unsafeStyle));\n}\n\n/**\n * A `url` sanitizer which converts untrusted `url` **string** into trusted string by removing\n * dangerous\n * content.\n *\n * This method parses the `url` and locates potentially dangerous content (such as javascript) and\n * removes it.\n *\n * It is possible to mark a string as trusted by calling {@link bypassSanitizationTrustUrl}.\n *\n * @param unsafeUrl untrusted `url`, typically from the user.\n * @returns `url` string which is safe to bind to the `src` properties such as `<img src>`, because\n * all of the dangerous javascript has been removed.\n *\n * @publicApi\n */\nexport function ɵɵsanitizeUrl(unsafeUrl: any): string {\n  const sanitizer = getSanitizer();\n  if (sanitizer) {\n    return sanitizer.sanitize(SecurityContext.URL, unsafeUrl) || '';\n  }\n  if (allowSanitizationBypass(unsafeUrl, BypassType.Url)) {\n    return unsafeUrl.toString();\n  }\n  return _sanitizeUrl(renderStringify(unsafeUrl));\n}\n\n/**\n * A `url` sanitizer which only lets trusted `url`s through.\n *\n * This passes only `url`s marked trusted by calling {@link bypassSanitizationTrustResourceUrl}.\n *\n * @param unsafeResourceUrl untrusted `url`, typically from the user.\n * @returns `url` string which is safe to bind to the `src` properties such as `<img src>`, because\n * only trusted `url`s have been allowed to pass.\n *\n * @publicApi\n */\nexport function ɵɵsanitizeResourceUrl(unsafeResourceUrl: any): string {\n  const sanitizer = getSanitizer();\n  if (sanitizer) {\n    return sanitizer.sanitize(SecurityContext.RESOURCE_URL, unsafeResourceUrl) || '';\n  }\n  if (allowSanitizationBypass(unsafeResourceUrl, BypassType.ResourceUrl)) {\n    return unsafeResourceUrl.toString();\n  }\n  throw new Error('unsafe value used in a resource URL context (see http://g.co/ng/security#xss)');\n}\n\n/**\n * A `script` sanitizer which only lets trusted javascript through.\n *\n * This passes only `script`s marked trusted by calling {@link\n * bypassSanitizationTrustScript}.\n *\n * @param unsafeScript untrusted `script`, typically from the user.\n * @returns `url` string which is safe to bind to the `<script>` element such as `<img src>`,\n * because only trusted `scripts` have been allowed to pass.\n *\n * @publicApi\n */\nexport function ɵɵsanitizeScript(unsafeScript: any): string {\n  const sanitizer = getSanitizer();\n  if (sanitizer) {\n    return sanitizer.sanitize(SecurityContext.SCRIPT, unsafeScript) || '';\n  }\n  if (allowSanitizationBypass(unsafeScript, BypassType.Script)) {\n    return unsafeScript.toString();\n  }\n  throw new Error('unsafe value used in a script context');\n}\n\n/**\n * Detects which sanitizer to use for URL property, based on tag name and prop name.\n *\n * The rules are based on the RESOURCE_URL context config from\n * `packages/compiler/src/schema/dom_security_schema.ts`.\n * If tag and prop names don't match Resource URL schema, use URL sanitizer.\n */\nexport function getUrlSanitizer(tag: string, prop: string) {\n  if ((prop === 'src' && (tag === 'embed' || tag === 'frame' || tag === 'iframe' ||\n                          tag === 'media' || tag === 'script')) ||\n      (prop === 'href' && (tag === 'base' || tag === 'link'))) {\n    return ɵɵsanitizeResourceUrl;\n  }\n  return ɵɵsanitizeUrl;\n}\n\n/**\n * Sanitizes URL, selecting sanitizer function based on tag and property names.\n *\n * This function is used in case we can't define security context at compile time, when only prop\n * name is available. This happens when we generate host bindings for Directives/Components. The\n * host element is unknown at compile time, so we defer calculation of specific sanitizer to\n * runtime.\n *\n * @param unsafeUrl untrusted `url`, typically from the user.\n * @param tag target element tag name.\n * @param prop name of the property that contains the value.\n * @returns `url` string which is safe to bind.\n *\n * @publicApi\n */\nexport function ɵɵsanitizeUrlOrResourceUrl(unsafeUrl: any, tag: string, prop: string): any {\n  return getUrlSanitizer(tag, prop)(unsafeUrl);\n}\n\n/**\n * The default style sanitizer will handle sanitization for style properties by\n * sanitizing any CSS property that can include a `url` value (usually image-based properties)\n *\n * @publicApi\n */\nexport const ɵɵdefaultStyleSanitizer =\n    (function(prop: string, value: string|null, mode?: StyleSanitizeMode): string | boolean | null {\n      mode = mode || StyleSanitizeMode.ValidateAndSanitize;\n      let doSanitizeValue = true;\n      if (mode & StyleSanitizeMode.ValidateProperty) {\n        doSanitizeValue = prop === 'background-image' || prop === 'background' ||\n            prop === 'border-image' || prop === 'filter' || prop === 'list-style' ||\n            prop === 'list-style-image' || prop === 'clip-path';\n      }\n\n      if (mode & StyleSanitizeMode.SanitizeOnly) {\n        return doSanitizeValue ? ɵɵsanitizeStyle(value) : value;\n      } else {\n        return doSanitizeValue;\n      }\n    } as StyleSanitizeFn);\n\nexport function validateAgainstEventProperties(name: string) {\n  if (name.toLowerCase().startsWith('on')) {\n    const msg = `Binding to event property '${name}' is disallowed for security reasons, ` +\n        `please use (${name.slice(2)})=...` +\n        `\\nIf '${name}' is a directive input, make sure the directive is imported by the` +\n        ` current module.`;\n    throw new Error(msg);\n  }\n}\n\nexport function validateAgainstEventAttributes(name: string) {\n  if (name.toLowerCase().startsWith('on')) {\n    const msg = `Binding to event attribute '${name}' is disallowed for security reasons, ` +\n        `please use (${name.slice(2)})=...`;\n    throw new Error(msg);\n  }\n}\n\nfunction getSanitizer(): Sanitizer|null {\n  const lView = getLView();\n  return lView && lView[SANITIZER];\n}\n"]}