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