Add simple visualization
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a79aac5cfd
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11
app.py
11
app.py
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@ -4,7 +4,7 @@ import json
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import logging
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import os
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from flask import (Flask, request, jsonify, abort)
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from flask import (Flask, request, jsonify, abort, render_template)
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from ltsdb_json import LTS
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@ -108,3 +108,12 @@ def verify_node(d):
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else:
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abort(409, "timestamp out of sync")
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abort(401, "auth failed")
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@app.get("/v")
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def visualize():
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timeseries_ids = request.args.getlist("ts")
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timeseries_data = []
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for id in timeseries_ids:
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ts = LTS(id=id)
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timeseries_data.append(ts)
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return render_template("visualize.html", ts=timeseries_data)
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@ -0,0 +1,75 @@
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#!/usr/bin/python3
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import argparse
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import hmac
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import json
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import os
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import socket
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import ssl
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import time
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import requests
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ap = argparse.ArgumentParser()
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ap.add_argument("hostname")
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ap.add_argument("port", type=int, default=443, nargs="?")
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args = ap.parse_args()
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# It's a bit weird that this works.
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myhostname = socket.gethostbyaddr(socket.gethostname())[0]
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now = time.time()
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report0 = []
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with socket.create_connection((args.hostname, args.port)) as sock:
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context = ssl.create_default_context()
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with context.wrap_socket(sock, server_hostname=args.hostname) as ssock:
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cert = ssock.getpeercert()
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not_after = ssl.cert_time_to_seconds(cert["notAfter"])
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delta = not_after - now
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report0.append({ "measure": "tls_cert_ttl", "unit": "s", "value": delta })
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report = [
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{
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"description": {
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"hostname": args.hostname,
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"port": args.port,
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"measure": r["measure"],
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"unit": r["unit"]
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},
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"data": [
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[now, r["value"]]
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]
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}
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for r in report0
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]
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for dir in (".", os.environ["HOME"] + "/.config/ltsdb", "/etc/ltsdb"):
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try:
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with open(dir + "/config.json") as fh:
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client_config = json.load(fh)
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baseurl = client_config["server"]
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break
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except FileNotFoundError:
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pass
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while True:
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for r in report:
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node = myhostname
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timestamp = time.time()
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msg = (node + " " + str(timestamp)).encode("UTF-8")
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digest = hmac.new(client_config["key"].encode("UTF-8"), msg, "SHA256").hexdigest()
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r["auth"] = {
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"node": node,
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"timestamp": timestamp,
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"hmac": digest,
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}
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#pprint.pp(report)
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r = requests.post(baseurl + "report", json=report)
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print(r)
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if r.status_code == 200:
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exit(0)
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elif r.status_code == 409:
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time.sleep(0.5 + random.random())
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continue
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else:
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exit(1)
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@ -90,3 +90,12 @@ class LTS:
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result &= ts
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return result
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def data_json_by_row(self):
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d = []
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for dp in self.data:
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d.append({
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"t": dp[0],
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"v": dp[1],
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"utc": time.strftime("%Y-%m-%dT%H:%M:%S", time.gmtime(dp[0])),
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})
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return json.dumps(d)
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@ -0,0 +1,65 @@
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<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="width=device-width; initial-scale=1">
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<meta charset="utf-8">
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<script src="https://cdn.jsdelivr.net/npm/vega@5.22.1"></script>
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<script src="https://cdn.jsdelivr.net/npm/vega-lite@5.6.0"></script>
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<script src="https://cdn.jsdelivr.net/npm/vega-embed@6.21.0"></script>
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<style>
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body {
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font-family: sans-serif;
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}
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.vega {
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width: min(90vw, 1000px);
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}
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th {
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text-align: left;
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}
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</style>
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</head>
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<body>
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{% for t in ts %}
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<table>
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{% for k, v in t.description.items() %}
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<tr>
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<th> {{ k }} </th>
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<td> {{ v }} </td>
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</tr>
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{% endfor %}
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<tr>
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<th> period </th>
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<td>
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{{ t.data[0][0] }} .. {{ t.data[-1][0] }}
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</td>
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</tr>
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</table>
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<div id="vis{{loop.index}}" class="vega">
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</div>
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<script>
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{
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const d = {
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width: "container",
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data: {
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values: {{ t.data_json_by_row() | safe }}
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},
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mark: "point",
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encoding: {
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x: {
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field: "utc",
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// type: "quantitative",
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type: "temporal",
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//scale: { domain: [{{t.data[0][0]}}, {{t.data[-1][0]}}] },
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},
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y: { field: "v", type: "quantitative" },
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},
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}
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vegaEmbed("#vis{{loop.index}}", d)
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}
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</script>
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{% endfor %}
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</body>
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</html>
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