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import debug from './debug';
// If this list catches things that are not necessarily forbidden we're ok with
// a little bit of approximation as long as we do catch the ones that we have to.
// We need to be quite aggressive with how we filter candiate pages as failing
// to protect our users' privacy puts us in breach of our own TOS and our
// retargeting partners' TOS. We also see personally identifiable information in
// unexpected places like email addresses in users' posts URLs and titles for
// various (usually accidental) reasons. We also pass PII in URLs like
// `wordpress.com/jetpack/connect` and `wordpress.com/error-report`.
const forbiddenPiiPatterns = [
'@',
'email=',
'email_address=',
'first=',
'last=',
'first-name=',
'last-name=',
'address-1=',
'phone=',
];
const forbiddenPiiPatternsEnc = forbiddenPiiPatterns.map( ( pattern ) => {
return encodeURIComponent( pattern );
} );
/**
* Whether the current URL can potentially contain personally identifiable info.
* @returns {boolean} true if the current URL can potentially contain personally identifiable info.
*/
export default function isPiiUrl() {
const href = document.location.href;
const match = ( pattern ) => href.indexOf( pattern ) !== -1;
const result = forbiddenPiiPatterns.some( match ) || forbiddenPiiPatternsEnc.some( match );
debug( `Is PII URL: ${ result }` );
return result;
}
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