adding graph cpm

portspoof_py/admin.py

@@ -308,31 +308,12 @@ tr:hover td { background: #1c2128; }
     border-radius: 3px; padding: 1px 7px; font-size: 11px;
     margin-left: 6px; vertical-align: middle;
 }
-/* lookup form */
-.form-row { display: flex; gap: 8px; align-items: center; margin-bottom: 10px; }
-input[type=number] {
-    background: #0d1117; border: 1px solid #30363d;
-    color: #c9d1d9; padding: 6px 10px; border-radius: 4px;
-    width: 110px; font-family: inherit; font-size: 13px;
-}
-button {
-    background: #238636; border: 1px solid #2ea043;
-    color: #fff; padding: 6px 14px; border-radius: 4px;
-    cursor: pointer; font-family: inherit; font-size: 13px;
-}
-button:hover { background: #2ea043; }
-.lookup-result {
-    background: #0d1117; border: 1px solid #30363d;
-    border-radius: 4px; padding: 10px; margin-top: 8px;
-}
-.lookup-result .lbl { color: #8b949e; font-size: 11px; margin-bottom: 2px; }
-.lookup-result .hexval { color: #a5d6ff; word-break: break-all; }
-.lookup-result .txtval {
-    color: #c9d1d9; white-space: pre; overflow-x: auto;
-    max-height: 120px; font-size: 12px; margin-top: 6px;
-    border-top: 1px solid #21262d; padding-top: 6px;
-}
 .empty { color: #8b949e; font-style: italic; padding: 8px 0; }
+.link-btn {
+    background: none; border: none; color: #58a6ff; padding: 0;
+    font-family: inherit; font-size: inherit; cursor: pointer;
+}
+.link-btn:hover { text-decoration: underline; }
 """
 
 _HTML = """\
@@ -349,8 +330,10 @@ _HTML = """\
   <h1>portspoof admin</h1>
   <p class="sub">
     Auto-refreshes every 5 s &middot;
-    <a href="/">reset lookup</a> &middot;
-    <a href="/config">email alerts</a> &middot;
+    <form method="post" action="/api/stats/reset" style="display:inline">
+      <button type="submit" class="link-btn">reset stats</button>
+    </form>
+    &middot; <a href="/config">email alerts</a> &middot;
     <a href="/api/stats" target="_blank">JSON stats</a>
   </p>
 
@@ -363,7 +346,13 @@ _HTML = """\
     <div class="card stat"><h3>Last connection</h3><div class="val last">{last_seen}</div></div>
   </div>
 
-  <!-- top ips / top ports / banner lookup -->
+  <!-- connections / min chart -->
+  <div class="card full">
+    <h2>Connections / min <span class="badge">last 60 min</span></h2>
+    {cpm_chart}
+  </div>
+
+  <!-- top ips / top ports -->
   <div class="row">
     <div class="card half">
       <h2>Top source IPs</h2>
@@ -380,18 +369,6 @@ _HTML = """\
         {top_ports_rows}
       </table>
     </div>
-
-    <div class="card half">
-      <h2>Banner lookup</h2>
-      <form method="get" action="/">
-        <div class="form-row">
-          <input type="number" name="port" min="0" max="65535"
-                 placeholder="0&ndash;65535" value="{port_q}" required>
-          <button type="submit">Look up</button>
-        </div>
-      </form>
-      {lookup_html}
-    </div>
   </div>
 
   <!-- recent connections -->
@@ -408,71 +385,111 @@ _HTML = """\
 """
 
 
+def _render_cpm_chart(history: list) -> str:
+    """Render a 60-minute connections-per-minute SVG line chart (server-side, no JS)."""
+    n   = len(history)
+    # Plot area inside the SVG viewBox
+    PX, PY = 38, 8       # top-left corner of plot area
+    W,  H  = 572, 92     # plot area width and height
+    VW, VH = PX + W + 4, PY + H + 22  # total viewBox size
+
+    max_val = max(history) if any(history) else 0
+    y_max   = max(max_val, 1)
+
+    parts: list = []
+
+    # Horizontal grid lines + Y-axis labels
+    for frac, label_fn in ((0.25, lambda v: str(int(v * 0.25))),
+                            (0.5,  lambda v: str(int(v * 0.5))),
+                            (0.75, lambda v: str(int(v * 0.75))),
+                            (1.0,  lambda v: str(int(v)))):
+        gy  = PY + H - int(H * frac)
+        lbl = label_fn(y_max)
+        parts.append(
+            f'<line x1="{PX}" y1="{gy}" x2="{PX+W}" y2="{gy}" '
+            f'stroke="#21262d" stroke-width="1"/>'
+            f'<text x="{PX-4}" y="{gy+4}" text-anchor="end" '
+            f'fill="#8b949e" font-size="9">{lbl}</text>'
+        )
+
+    # X-axis labels at fixed minute offsets
+    for idx, lbl in ((0, '-60m'), (15, '-45m'), (30, '-30m'), (45, '-15m'), (59, 'now')):
+        gx = PX + int(idx * W / (n - 1)) if n > 1 else PX
+        parts.append(
+            f'<text x="{gx}" y="{PY+H+14}" text-anchor="middle" '
+            f'fill="#8b949e" font-size="9">{lbl}</text>'
+        )
+
+    # Axes
+    parts.append(
+        f'<line x1="{PX}" y1="{PY}" x2="{PX}" y2="{PY+H}" stroke="#30363d" stroke-width="1"/>'
+        f'<line x1="{PX}" y1="{PY+H}" x2="{PX+W}" y2="{PY+H}" stroke="#30363d" stroke-width="1"/>'
+    )
+
+    # Line + filled area
+    if n > 1:
+        coords = [
+            (PX + int(i * W / (n - 1)), PY + H - int(H * v / y_max))
+            for i, v in enumerate(history)
+        ]
+        line_pts  = ' '.join(f'{x},{y}' for x, y in coords)
+        area_pts  = f'{PX},{PY+H} ' + line_pts + f' {PX+W},{PY+H}'
+        parts.append(f'<polygon points="{area_pts}" fill="#1f3a5f" opacity="0.6"/>')
+        parts.append(
+            f'<polyline points="{line_pts}" fill="none" stroke="#58a6ff" '
+            f'stroke-width="1.5" stroke-linejoin="round"/>'
+        )
+
+    return (
+        f'<svg viewBox="0 0 {VW} {VH}" width="100%" '
+        f'xmlns="http://www.w3.org/2000/svg" style="display:block;margin-top:8px">'
+        + ''.join(parts)
+        + '</svg>'
+    )
+
+
 def _empty_row(cols: int, msg: str) -> str:
     return f'<tr><td colspan="{cols}" class="empty">{msg}</td></tr>'
 
 
-def _render_dashboard(
-    stats: Stats,
-    cfg: Config,
-    port_q: Optional[str],
-) -> str:
+def _render_dashboard(stats: Stats, cfg: Config) -> str:
     # ── top IPs ──
     top_ips = stats.top_ips()
-    if top_ips:
-        ip_rows = ''.join(
+    ip_rows = (
+        ''.join(
             f'<tr><td class="ip">{html.escape(ip)}</td><td>{c}</td></tr>'
             for ip, c in top_ips
-        )
-    else:
-        ip_rows = _empty_row(2, 'no data yet')
+        ) if top_ips else _empty_row(2, 'no data yet')
+    )
 
     # ── top ports ──
     top_ports = stats.top_ports()
-    if top_ports:
-        port_rows = ''.join(
+    port_rows = (
+        ''.join(
             f'<tr><td class="port">{p}</td><td>{c}</td></tr>'
             for p, c in top_ports
-        )
-    else:
-        port_rows = _empty_row(2, 'no data yet')
+        ) if top_ports else _empty_row(2, 'no data yet')
+    )
 
-    # ── banner lookup ──
-    lookup_html = ''
-    if port_q is not None:
-        try:
-            port_num = int(port_q)
-            if not 0 <= port_num <= 65535:
-                raise ValueError
-            banner = cfg.get_banner(port_num)
-            txt_preview = banner.decode('latin-1', errors='replace')
-            txt_safe = html.escape(txt_preview)
-            hex_safe = html.escape(banner.hex())
-            lookup_html = f"""
-<div class="lookup-result">
-  <div class="lbl">Port {port_num} &mdash; {len(banner)} bytes</div>
-  <div class="hexval">{hex_safe}</div>
-  <div class="txtval">{txt_safe}</div>
-</div>"""
-        except (ValueError, TypeError):
-            lookup_html = '<div class="lookup-result"><div class="lbl">Invalid port number.</div></div>'
+    # ── CPM chart ──
+    cpm_chart = _render_cpm_chart(stats.cpm_history(60))
 
     # ── recent connections ──
     recent = stats.recent_connections(50)
-    if recent:
-        conn_rows = ''.join(
+    conn_rows = (
+        ''.join(
             '<tr>'
             f'<td class="ts">{html.escape(e["timestamp"][:19].replace("T", " "))}</td>'
             f'<td class="ip">{html.escape(e["src_ip"])}</td>'
             f'<td>{e["src_port"]}</td>'
             f'<td class="port">{e["dst_port"]}</td>'
-            f'<td class="hex" title="{html.escape(e["banner_hex"])}">{html.escape(e["banner_hex"][:48])}{"…" if len(e["banner_hex"]) > 48 else ""}</td>'
+            f'<td class="hex" title="{html.escape(e["banner_hex"])}">'
+            f'{html.escape(e["banner_hex"][:48])}{"…" if len(e["banner_hex"]) > 48 else ""}</td>'
             f'<td>{e["banner_len"]}</td>'
             '</tr>'
             for e in recent
-        )
-    else:
-        conn_rows = _empty_row(6, 'no connections yet')
+        ) if recent else _empty_row(6, 'no connections yet')
+    )
 
     last = stats.last_connection
     last_seen = last[:19].replace('T', ' ') + ' UTC' if last else '—'
@@ -484,10 +501,9 @@ def _render_dashboard(
         uptime=stats.uptime_str(),
         ports=len(cfg.port_map),
         last_seen=html.escape(last_seen),
+        cpm_chart=cpm_chart,
         top_ips_rows=ip_rows,
         top_ports_rows=port_rows,
-        port_q=html.escape(str(port_q)) if port_q is not None else '',
-        lookup_html=lookup_html,
         recent_count=len(recent),
         conn_rows=conn_rows,
     )
@@ -614,9 +630,14 @@ async def _handle(
                 ct = 'application/json'
 
         # ── standard routes ───────────────────────────────────────────────────
+        elif path == '/api/stats/reset' and method == 'POST':
+            stats.reset()
+            writer.write(_redirect('/'))
+            await writer.drain()
+            return
+
         elif path == '/':
-            port_q = qs.get('port', [None])[0]
-            body = _render_dashboard(stats, cfg, port_q)
+            body = _render_dashboard(stats, cfg)
             ct = 'text/html; charset=utf-8'
 
         elif path == '/api/stats':

portspoof_py/stats.py

@@ -29,9 +29,21 @@ class Stats:
         self._last_ts:  str | None = None   # ISO timestamp of last connection
         self._recent: deque    = deque(maxlen=max_recent)
         self._timestamps: deque = deque()   # monotonic timestamps for rolling rate
+        self._minute_buckets: dict = {}     # int(wall_time // 60) → connection count
         self._top_ips   = Counter()
         self._top_ports = Counter()
 
+    def reset(self) -> None:
+        """Clear all counters and restart the uptime clock."""
+        self._start       = time.monotonic()
+        self._total       = 0
+        self._last_ts     = None
+        self._recent.clear()
+        self._timestamps.clear()
+        self._minute_buckets.clear()
+        self._top_ips.clear()
+        self._top_ports.clear()
+
     # ── write side (called from logger writer coroutine) ────────────────────
 
     def record(self, event: dict) -> None:
@@ -46,6 +58,9 @@ class Stats:
         self._last_ts = event['timestamp']
         self._top_ips[event['src_ip']] += 1
         self._top_ports[event['dst_port']] += 1
+        # Per-minute bucket for the chart
+        bucket = int(time.time() // 60)
+        self._minute_buckets[bucket] = self._minute_buckets.get(bucket, 0) + 1
 
     # ── read side (called from admin HTTP handler) ───────────────────────────
 
@@ -73,6 +88,15 @@ class Stats:
     def top_ports(self, n: int = 10) -> List[Tuple[int, int]]:
         return self._top_ports.most_common(n)
 
+    def cpm_history(self, n: int = 60) -> List[int]:
+        """Return n per-minute connection counts, oldest first, ending at the current minute."""
+        now_bucket = int(time.time() // 60)
+        # Prune buckets older than our window to keep the dict bounded
+        cutoff = now_bucket - n
+        for k in [k for k in self._minute_buckets if k < cutoff]:
+            del self._minute_buckets[k]
+        return [self._minute_buckets.get(now_bucket - (n - 1 - i), 0) for i in range(n)]
+
     @property
     def last_connection(self) -> str | None:
         return self._last_ts