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[Add] Added upgrade-insecure-requests directive in CSP Headers #58

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[Add] Added upgrade-insecure-requests directive in CSP Headers #58

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20 changes: 19 additions & 1 deletion src/rules/content-security-policy.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -76,14 +76,19 @@ type ReportingDirective = {
reportTo: string;
"report-to": string;
};
type OtherDirective = {
upgradeInsecureRequests: boolean;
"upgrade-insecure-requests": boolean;
};

export type ContentSecurityPolicyOption =
| false
| {
directives: Partial<FetchDirective> &
Partial<DocumentDirective> &
Partial<NavigationDirective> &
Partial<ReportingDirective>;
Partial<ReportingDirective> &
Partial<OtherDirective>;
reportOnly?: boolean;
};

Expand Down Expand Up @@ -203,12 +208,24 @@ export const convertReportingDirectiveToString = (directive?: Partial<ReportingD
return strings.join(directiveValueSepartor);
};

export const convertOtherDirectiveToString = (directive?: Partial<OtherDirective>) => {
if (directive == undefined) return "";

const strings: string[] = [];

const upgradeInsecureRequests = directive.upgradeInsecureRequests ?? directive["upgrade-insecure-requests"];
if (upgradeInsecureRequests) strings.push(createDirectiveValue("upgrade-insecure-requests", []));

return strings.join(directiveValueSepartor);
};

export const createContentSecurityPolicyOptionHeaderValue = (
option?: ContentSecurityPolicyOption,
fetchDirectiveToStringConverter = convertFetchDirectiveToString,
documentDirectiveToStringConverter = convertDocumentDirectiveToString,
navigationDirectiveToStringConverter = convertNavigationDirectiveToString,
reportingDirectiveToStringConverter = convertReportingDirectiveToString,
othersDirectiveToStringConverter = convertOtherDirectiveToString,
): string | undefined => {
if (option == undefined) return;
if (option === false) return;
Expand All @@ -218,6 +235,7 @@ export const createContentSecurityPolicyOptionHeaderValue = (
documentDirectiveToStringConverter(option.directives),
navigationDirectiveToStringConverter(option.directives),
reportingDirectiveToStringConverter(option.directives),
othersDirectiveToStringConverter(option.directives),
]
.filter((string) => string.length > 0)
.join(directiveValueSepartor);
Expand Down