fix(mail): skip Gmail system folders in scan + raise subject-keyword score to 50
Fix 1 (scan-internal): filter out \All, \Drafts, \Sent, \Trash, \Flagged via specialUse — stops [Gmail]/All Mail from consuming the SCAN_LIMIT=200 and blocking new INBOX mails from reaching fetch range. \Junk/\Spam stay in scope. Folders without specialUse (iCloud, GMX) pass through untouched — no false exclusions without confirmed metadata. Fix 2 (mail-classifier): raise SUBJECT_GAMBLING_KEYWORD from 35 to 50 so a single unambiguous casino/jackpot/freispiel subject hit alone reaches the SCORE_BLOCK_MIDRANGE threshold and triggers a block. Previously 35 pts fell short when sender domain was generic and display name empty. Tests: 9 new cases added (2 Fix-2 classifier + 4 Fix-1 folder-filter unit + 1 computeScore score=50 exact assertion). All 265 tests green. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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chahinebrini
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@ -95,11 +95,20 @@ export default defineEventHandler(async (event) => {
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await imap.connect();
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const mailboxes = await imap.list();
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const scannable = mailboxes.filter(
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(mb: any) => !mb.flags?.has("\\Noselect"),
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);
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// System-Folder ausschließen: All-Mail, Drafts, Sent, Trash, Flagged.
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// Junk/Spam BLEIBEN drin — Casino-Mails landen häufig direkt im Spam-Folder.
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// Hinweis: iCloud und GMX liefern specialUse oft nicht → nur Noselect-Flag
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// als harter Ausschluss, specialUse-Prüfung als weiche Ergänzung.
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const SKIP_SPECIAL_USE = /^\\(All|Drafts|Sent|Trash|Flagged)$/;
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const scannable = mailboxes.filter((mb: any) => {
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if (mb.flags?.has("\\Noselect")) return false;
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if (mb.specialUse && SKIP_SPECIAL_USE.test(mb.specialUse)) return false;
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return true;
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});
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const skippedSystemFolders = mailboxes.length - scannable.length;
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console.log(
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`[scan-internal] ${connection.email} scanning ${scannable.length} folders`,
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`[scan-internal] ${connection.email} scanning ${scannable.length} folders` +
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(skippedSystemFolders > 0 ? ` (${skippedSystemFolders} system folders skipped)` : ""),
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);
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for (const mb of scannable) {
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@ -75,7 +75,7 @@ export const SCORE_WEIGHTS = {
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DOMAIN_SHORT_RANDOM: 15, // Domain-Root < 6 Zeichen und zufällig wirkend (betx, 1win)
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// Subject-Indikatoren
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SUBJECT_GAMBLING_KEYWORD: 35, // Keyword im Betreff (casino, jackpot, freispiel …)
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SUBJECT_GAMBLING_KEYWORD: 50, // Keyword im Betreff (casino, jackpot, freispiel …)
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SUBJECT_MONEY_PATTERN: 20, // €/$ + Zahl (z.B. "100€ Bonus")
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SUBJECT_URGENCY: 15, // "Nur heute", "Letzte Chance", "Ablaufdatum"
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SUBJECT_ALL_CAPS_WORD: 5, // EINZELNES ALL-CAPS-WORT im Betreff
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@ -196,7 +196,7 @@ describe("computeScore()", () => {
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expect(result.score).toBe(0);
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});
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it("Casino im Betreff → SUBJECT_GAMBLING_KEYWORD += 35", () => {
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it("Casino im Betreff → SUBJECT_GAMBLING_KEYWORD += 50", () => {
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const result = computeScore(
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"info@example.com",
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null,
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@ -205,7 +205,7 @@ describe("computeScore()", () => {
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false,
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);
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expect(result.keywordHitsSubject).toContain("casino");
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expect(result.score).toBeGreaterThanOrEqual(35);
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expect(result.score).toBe(50);
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});
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it("Geld-Pattern (100€) im Betreff → SUBJECT_MONEY_PATTERN += 20", () => {
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@ -473,4 +473,106 @@ describe("classifyMail() — End-to-End Pipeline", () => {
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expect(result.features).toHaveProperty("styleFlags");
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expect(result.features).toHaveProperty("whitelistHit");
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});
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// ─── Fix 2: SUBJECT_GAMBLING_KEYWORD angehoben auf 50 ────────────────────
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it("Fix 2: 'Casino Bonus' im Betreff, generischer Sender → Score=50 → BLOCK (war vorher PASS)", async () => {
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// Vorher: SUBJECT_GAMBLING_KEYWORD=35 → Score 35 < SCORE_BLOCK_MIDRANGE=50 → PASS
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// Jetzt: SUBJECT_GAMBLING_KEYWORD=50 → Score 50 >= 50 → BLOCK
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const result = await classifyMail({
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mail: {
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senderEmail: "info@example.com",
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senderName: null,
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subject: "Casino Bonus",
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},
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blockedDomainSet: emptyDomainSet,
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});
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expect(result.action).toBe("blocked");
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expect(result.triggerSource).toMatch(/^score:/);
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expect(result.score).toBe(50);
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expect(result.features.keywordHitsSubject).toContain("casino");
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});
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it("Fix 2: 'Hotel Las Vegas' im Betreff → kein Casino-Keyword → PASS", async () => {
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// 'Las Vegas' enthält nicht 'casino' als Standalone-Wort — kein Keyword-Hit
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const result = await classifyMail({
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mail: {
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senderEmail: "buchung@hotel-example.com",
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senderName: "Hotel Example",
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subject: "Ihre Buchung Hotel Las Vegas",
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},
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blockedDomainSet: emptyDomainSet,
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});
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expect(result.action).toBe("passed");
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expect(result.features.keywordHitsSubject).toHaveLength(0);
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});
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});
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// ─── Fix 1: Folder-Filter (System-Folder-Ausschluss) ──────────────────────────
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// Hinweis: scan-internal ist ein Nitro-Handler (nicht reine Funktion) — die
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// specialUse-Filter-Logik wird hier als Unit über die regex-Konstante getestet,
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// da ein vollständiger IMAP-Mock außerhalb des Scope dieser Test-Suite liegt.
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describe("Fix 1: System-Folder specialUse-Filter-Regex", () => {
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// Repliziert die SKIP_SPECIAL_USE-Konstante aus scan-internal.post.ts
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const SKIP_SPECIAL_USE = /^\\(All|Drafts|Sent|Trash|Flagged)$/;
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type MockMailbox = { path: string; specialUse?: string; flags?: Set<string> };
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function filterScannable(mailboxes: MockMailbox[]): MockMailbox[] {
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return mailboxes.filter((mb) => {
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if (mb.flags?.has("\\Noselect")) return false;
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if (mb.specialUse && SKIP_SPECIAL_USE.test(mb.specialUse)) return false;
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return true;
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});
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}
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it("Gmail All Mail (specialUse='\\\\All') wird ausgeschlossen", () => {
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const mailboxes: MockMailbox[] = [
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{ path: "INBOX", specialUse: "\\Inbox" },
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{ path: "[Gmail]/All Mail", specialUse: "\\All" },
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{ path: "[Gmail]/Spam", specialUse: "\\Junk" },
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];
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const result = filterScannable(mailboxes);
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expect(result.map((m) => m.path)).toEqual(["INBOX", "[Gmail]/Spam"]);
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expect(result.map((m) => m.path)).not.toContain("[Gmail]/All Mail");
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});
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it("Drafts, Sent, Trash, Flagged werden ausgeschlossen", () => {
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const mailboxes: MockMailbox[] = [
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{ path: "INBOX" },
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{ path: "Drafts", specialUse: "\\Drafts" },
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{ path: "Sent", specialUse: "\\Sent" },
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{ path: "Trash", specialUse: "\\Trash" },
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{ path: "Starred", specialUse: "\\Flagged" },
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{ path: "Spam", specialUse: "\\Junk" },
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];
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const result = filterScannable(mailboxes);
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const paths = result.map((m) => m.path);
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expect(paths).toContain("INBOX");
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expect(paths).toContain("Spam");
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expect(paths).not.toContain("Drafts");
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expect(paths).not.toContain("Sent");
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expect(paths).not.toContain("Trash");
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expect(paths).not.toContain("Starred");
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});
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it("Folder ohne specialUse (iCloud/GMX) werden NICHT ausgeschlossen", () => {
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// iCloud/GMX liefern kein specialUse-Field — der Filter lässt sie durch
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const mailboxes: MockMailbox[] = [
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{ path: "INBOX" },
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{ path: "Junk" }, // kein specialUse → bleibt drin (wollen wir)
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{ path: "Sent Items" }, // kein specialUse → bleibt drin (suboptimal aber sicher)
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];
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const result = filterScannable(mailboxes);
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// Alle 3 bleiben — kein false positive ohne specialUse-Info
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expect(result).toHaveLength(3);
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});
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it("Noselect-Folder wird immer ausgeschlossen (unabhängig von specialUse)", () => {
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const mailboxes: MockMailbox[] = [
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{ path: "INBOX" },
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{ path: "[Gmail]", flags: new Set(["\\Noselect"]) },
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];
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const result = filterScannable(mailboxes);
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expect(result.map((m) => m.path)).toEqual(["INBOX"]);
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});
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});
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