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/**
* part of Hachette
* Filtering request headers to remove hachette cookies that might have slipped
* through.
*
* Copyright (C) 2021 Wojtek Kosior
* Redistribution terms are gathered in the `copyright' file.
*/
/*
* IMPORTS_START
* IMPORT extract_signed
* IMPORTS_END
*/
function is_valid_hachette_cookie(cookie)
{
const match = /^hachette-(\w*)=(.*)$/.exec(cookie);
if (!match)
return false;
return !extract_signed(match.slice(1, 3)).fail;
}
function remove_hachette_cookies(header)
{
if (header.name !== "Cookie")
return header;
const cookies = header.value.split("; ");
const value = cookies.filter(c => !is_valid_hachette_cookie(c)).join("; ");
return value ? {name: "Cookie", value} : null;
}
function filter_cookie_headers(headers)
{
return headers.map(remove_hachette_cookies).filter(h => h);
}
/*
* EXPORTS_START
* EXPORT filter_cookie_headers
* EXPORTS_END
*/
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