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codeql/javascript/ql/src/AngularJS/UseNgSrc.ql
2019-01-07 10:15:45 +00:00

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/**
* @name Use of AngularJS markup in URL-valued attribute
* @description Using AngularJS markup in an HTML attribute that references a URL
* (such as 'href' or 'src') may cause the browser to send a request
* with an invalid URL.
* @kind problem
* @problem.severity warning
* @precision very-high
* @id js/angular/expression-in-url-attribute
* @tags maintainability
* frameworks/angularjs
*/
import javascript
from HTML::Attribute attr, string name
where
name = attr.getName() and
// only flag URL-valued attributes...
(name = "href" or name = "src" or name = "srcset") and
// ...where the value contains some interpolated expressions
attr.getValue().matches("%{{%}}") and
// check that there is at least one use of an AngularJS attribute directive nearby
// (`{{...}}` is used by other templating frameworks as well)
any(AngularJS::DirectiveInstance d).getATarget().getElement().getRoot() = attr.getRoot()
select attr, "Use 'ng-" + name + "' instead of '" + name + "'."