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enhance(email): improve detection of allowed Gusto URLs in email classification

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Resolves code scanning alert #2
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Adam Moussa 2026-07-23 16:18:53 -04:00
parent 2a98bd51bb
commit 0f8ade37b4
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1 changed files with 19 additions and 2 deletions
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21
src/processPayrollEmail.js
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@ -36,6 +36,24 @@ const formatCurrency = (v) =>
currency: "USD", currency: "USD",
}).format(Number(v || 0)); }).format(Number(v || 0));
function isAllowedGustoHost(hostname) {
const h = (hostname || "").toLowerCase();
return h === "gusto.com" || h.endsWith(".gusto.com");
}
function bodyMentionsAllowedGustoUrl(text) {
const urlMatches = (text || "").match(/\bhttps?:\/\/[^\s<>"')]+/gi) || [];
for (const rawUrl of urlMatches) {
try {
const parsed = new URL(rawUrl);
if (isAllowedGustoHost(parsed.hostname)) return true;
} catch {
// Ignore malformed URLs in email text.
}
}
return false;
}
function classifyEmail(from, subject, text) { function classifyEmail(from, subject, text) {
const fromAddr = (from?.text || from || "").toLowerCase(); const fromAddr = (from?.text || from || "").toLowerCase();
const subj = (subject || "").toLowerCase(); const subj = (subject || "").toLowerCase();
@ -54,8 +72,7 @@ function classifyEmail(from, subject, text) {
} }
const strippedSubj = subj.replace(/^fwd?:\s*/i, ""); const strippedSubj = subj.replace(/^fwd?:\s*/i, "");
const body = (text || "").toLowerCase(); const bodyMentionsGusto = bodyMentionsAllowedGustoUrl(text || "");
const bodyMentionsGusto = body.includes("gusto.com");
if (bodyMentionsGusto && strippedSubj.includes("payroll confirmation")) { if (bodyMentionsGusto && strippedSubj.includes("payroll confirmation")) {
return "employee"; return "employee";