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"use strict";
function ReportingCSP(reportURI, reportGroup) {
const REPORT_TO_SUPPORTED = false;
// TODO: figure out if we're running on a browser supporting the report-to
// CSP directive, breaking report-uri, see
// 1. https://www.w3.org/TR/CSP3/#directive-report-uri
// 2. https://bugs.chromium.org/p/chromium/issues/detail?id=726634
// 3. https://bugzilla.mozilla.org/show_bug.cgi?id=1391243
const REPORT_TO = {
name: "Report-To",
value: JSON.stringify({ "url": reportURI,
"group": reportGroup,
"max-age": 10886400 }),
};
return Object.assign(
new CapsCSP(new NetCSP(
REPORT_TO_SUPPORTED ? `;report-to ${reportGroup};`
: `report-uri ${reportURI};`
)),
{
reportURI,
reportGroup,
patchHeaders(responseHeaders, capabilities) {
let header = null;
let needsReportTo = REPORT_TO_SUPPORTED;
let blocker = capabilities && this.buildFromCapabilities(capabilities);
responseHeaders.forEach((h, index) => {
if (this.isMine(h)) {
header = h;
responseHeaders.splice(index, 1);
} else if (needsReportTo &&
h.name === REPORT_TO.name && h.value === REPORT_TO.value) {
needsReportTo = false;
} else if (blocker && /^(Location|Refresh)$/i.test(h.name)) {
// neutralize any HTTP redirection to data: URLs, like Chromium
let url = /^R/i.test(h.name)
? h.value.replace(/^[^,;]*[,;](?:\W*url[^=]*=)?[^!#$%&()*+,/:;=?@[\]\w.,~-]*/i, "") : h.value;
if (/^data:/i.test(url)) {
h.value = h.value.slice(0, -url.length) + "data:";
}
}
});
if (blocker) {
if (needsReportTo) {
responseHeaders.push(REPORT_TO);
}
header = this.asHeader(blocker);
responseHeaders.push(header);
}
return header;
}
}
);
}
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