sri-test-helpers.sub.js

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// This horrible hack is needed for the 'use-credentials' tests because, on

// response, if port 80 or 443 is the current port, it will not appear to

// the browser as part of the origin string. Since the origin *string* is

// used for CORS access control, instead of the origin itself, if there

// isn't an exact string match, the check will fail. For example,

// "http://example.com" would not match "http://example.com:80", because

// they are not exact string matches, even though the origins are the same.

//

// Thus, we only want the Access-Control-Allow-Origin header to have

// the port if it's not port 80 or 443, since the user agent will elide the

// ports in those cases.

const main_domain = '{{domains[]}}';

const www_domain = '{{domains[www]}}';

const default_port = (location.protocol === 'https:') ? '{{ports[https][0]}}' :

                                                        '{{ports[http][0]}}';

const port_string = (default_port !== '80' && default_port !== '443') ?

                      `:${default_port}` : '';

const www_host_and_port = www_domain + port_string;

// General resource prefixes.

const same_origin_prefix = '/subresource-integrity/';

const xorigin_prefix = `${location.protocol}//${www_host_and_port}/subresource-integrity/`;

// General resource suffixes, for piping CORS headers.

const anonymous = '&pipe=header(Access-Control-Allow-Origin,*)';

const use_credentials = "&pipe=header(Access-Control-Allow-Credentials,true)|" +

                        "header(Access-Control-Allow-Origin," + location.origin + ")";

// Note that all of these style URLs have query parameters started, so any

// additional parameters should be appended starting with '&'.

const xorigin_anon_style = location.protocol

  + '//' + www_host_and_port

  + '/subresource-integrity/crossorigin-anon-style.css?';

const xorigin_creds_style = location.protocol

  + '//' + www_host_and_port

  + '/subresource-integrity/crossorigin-creds-style.css?acao_port='

  + port_string;

const xorigin_ineligible_style = location.protocol

  + '//' + www_host_and_port

  + '/subresource-integrity/crossorigin-ineligible-style.css?';