Function api_upload_chunk

Scripts/ButSystem.py:11787–11882

Upload a single vault chunk (sequential, resumable). Notes: - We require sequential chunk indices (0..total-1) because we append to a temp file. - Duplicate/retried chunks are safely ignored (won't corrupt the file). - Total size is capped at FILES_MAX_BYTES.

()

Internal helper function.

This docstring was added automatically to improve maintainability.

Args:
    username: Parameter.
    answers: Parameter.

Returns:
    Varies.
"""
    conn = db_connect()
    row = conn.execute("SELECT a1_hash,a2_hash,a3_hash FROM user_security WHERE username=?", (username,)).fetchone()
    conn.close()
    if not row:
        return False
    for k, col in (("a1", "a1_hash"), ("a2", "a2_hash"), ("a3", "a3_hash")):
        if k in answers:
            h = row[col]
            if not h or not check_password_hash(h, _norm_answer(answers.get(k, ""))):
                return False
    return True

@app.route("/settings", methods=["GET"])
@login_required
def settings_root():
    """Main settings entry point."""
    return redirect(url_for("settings_security"))

@app.route("/settings/security", methods=["GET"])
@login_required
def settings_security():
    """Security settings page (2FA security questions, UI preferences)."""
    u = current_user()

    # Defensive defaults to prevent 500s if DB isn't ready yet
    sec = {"enabled": 0, "q1": "", "q2": "", "q3": ""}
    prefs = dict(DEFAULT_PREFS)

    try:
        if u:
            sec = get_user_security(u) or sec
            prefs = get_user_prefs(u) or prefs
    except Exception as e:
        try:
            app.logger.exception("settings_security failed: %s", e)
        except Exception:
            pass

    return render_template(
        "settings_security.html",
        title="Settings",
        sec=sec,
        prefs=prefs,
        accent_choices=ACCENT_CHOICES,
        font_choices=FONT_CHOICES,
        ui_theme_choices=UI_THEME_CHOICES,
    )