2016-10-14 01:58:31 +03:00
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#!/usr/bin/env python3
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"""The MIT License
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Copyright (c) 2016 Arti Zirk <arti.zirk@gmail.com>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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"""
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from pprint import pprint
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2016-10-14 19:29:16 +03:00
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import sys
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2016-10-14 01:58:31 +03:00
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import json
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import random
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import base64
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2016-10-14 19:29:16 +03:00
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import os.path
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2016-10-14 01:58:31 +03:00
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from html import escape as html_escape
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from collections import deque
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from urllib.parse import parse_qs
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2016-10-14 02:34:01 +03:00
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import serial
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2016-10-14 19:29:16 +03:00
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2016-10-14 01:58:31 +03:00
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max_nr_messages = 25
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html = """<!DOCTYPE html>
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
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<title>Temperature</title>
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<meta name="description" content="A simple message board written in python">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<link rel="shortcut icon" type="image/x-icon" href="favicon.ico" />
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<link rel="icon" type="image/x-icon" href="favicon.ico" />
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<style>
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body {{
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margin: 10px auto;
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max-width: 650px;
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line-height: 1.6;
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font-size: 18px;
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color: #444;
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padding: 0 10px
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}}
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h1,h2,h3 {{
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line-height: 1.2
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}}
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hr {{
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display: block;
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height: 1px;
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border: 0;
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border-top: 1px solid #ccc;
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margin: 1em 0;
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padding: 0;
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}}
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.temp_container {{
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display: inline-block;
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}}
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</style>
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</head>
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<body>
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<!--[if lt IE 7]>
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<p class="browsehappy">You are using an <strong>outdated</strong> browser. Please <a href="http://browsehappy.com/">upgrade your browser</a> to improve your experience.</p>
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<![endif]-->
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<h1>Temperature</h1>
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<div style="display: flex;flex-direction: row;flex-wrap: wrap;justify-content: center;align-items: center;">
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<div id="temp_container">
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<!--div style="display: inline-block; position: relative; top: -24px;">
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<input type="text" style="display: block; width: 46px; font-size: 20px; padding: 0; margin: 20px 0;">
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<button style="display:block; height:50px; width:50px;padding:10px;">set</button>
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</div-->
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2016-10-14 20:13:31 +03:00
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<canvas data-width="100"
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data-height="300"
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data-type="linear-gauge"
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data-min-value="15"
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data-max-value="35"
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data-animation-rule="elastic"
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data-animation-duration="500"
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data-minor-ticks="5"
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data-major-ticks="15,20,25,30,35"
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data-highlights=""
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id="temp-gauge"></canvas>
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2016-10-14 01:58:31 +03:00
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</div>
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</div>
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2016-10-14 20:13:31 +03:00
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<canvas id="chart" width="650" height="200"></canvas>
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2016-10-14 01:58:31 +03:00
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<hr>
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<small><a href="https://git.wut.ee/arti/peltier_jacket" style="color:black;">Source code</a></small>, <small>Good luck!</small>
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<script type="text/javascript" src="/smoothie.js"></script>
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2016-10-14 19:30:00 +03:00
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<script type="text/javascript" src="/fetch.js"></script>
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2016-10-14 01:58:31 +03:00
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<script type="text/javascript" src="/gauge.min.js"></script>
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<script type="text/javascript" src="/main.js"></script>
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</body>
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</html>
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"""
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2016-10-14 02:34:01 +03:00
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temps = deque(maxlen=10)
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def stream(dev):
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with serial.Serial(dev, timeout=1) as s:
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while True:
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temperature = s.readline().decode().strip()
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2016-10-14 02:52:46 +03:00
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if not temperature:
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continue
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2016-10-14 02:34:01 +03:00
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print("temperature", temperature)
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temps.append(temperature)
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2016-10-14 01:58:31 +03:00
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def application(env, start_response):
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if env["REQUEST_METHOD"] == "POST":
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try:
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l = int(env.get('CONTENT_LENGTH', 0))
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except KeyError:
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start_response('411 Length Required', [('Content-Type', 'application/json')])
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return [json.dumps({"error":{"code":411, "message": "Content-Length header missing"}}).encode()]
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if l > 150:
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start_response('413 Payload Too Large', [('Content-Type', 'application/json')])
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return [json.dumps({"error":{"code":413, "message": "Payload Too Large"}}).encode()]
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message = env['wsgi.input'].read(l).decode()
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if not message:
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start_response('400 Bad Request', [('Content-Type', 'application/json')])
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return [json.dumps({"error":{"code":400, "message": "message not provided"}}).encode()]
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try:
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message = json.loads(message)["message"]
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except json.decoder.JSONDecodeError:
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pass
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except KeyError:
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start_response('400 Bad Request', [('Content-Type', 'application/json')])
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return [json.dumps({"error":{"code":400, "message": "message key missing from json payload data"}}).encode()]
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if message.startswith("message="):
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message = parse_qs(message)["message"][0]
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messages.appendleft(html_escape(message.strip()))
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#start_response("200 OK", [('Content-Type', 'application/json')])
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2016-10-14 02:34:01 +03:00
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if env["PATH_INFO"] == "/temps.json":
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start_response('200 OK', [('Content-Type', 'application/json')])
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return [json.dumps(list(temps)).encode()]
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2016-10-14 01:58:31 +03:00
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if env["PATH_INFO"] == "/favicon.ico":
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start_response('200 OK', [('Content-Type', 'image/x-icon')])
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return []
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elif env["PATH_INFO"] == "/smoothie.js":
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start_response('200 OK', [('Content-Type', 'application/javascript')])
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with open("smoothie.js", "rb") as f:
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return [f.read()]
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elif env["PATH_INFO"] == "/gauge.min.js":
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start_response('200 OK', [('Content-Type', 'application/javascript')])
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with open("gauge.min.js", "rb") as f:
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return [f.read()]
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2016-10-14 19:29:16 +03:00
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elif env["PATH_INFO"] == "/fetch.js":
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start_response('200 OK', [('Content-Type', 'application/javascript')])
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with open("fetch.js", "rb") as f:
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return [f.read()]
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2016-10-14 01:58:31 +03:00
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elif env["PATH_INFO"] == "/main.js":
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start_response('200 OK', [('Content-Type', 'application/javascript')])
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with open("main.js", "rb") as f:
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return [f.read()]
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start_response('200 OK', [('Content-Type', 'text/html')])
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return [html.format().encode()]
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if __name__ == "__main__":
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2016-10-14 19:29:16 +03:00
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if len(sys.argv) < 2:
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print("Usage: python3 main.py /dev/<arduinodev>")
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exit(1)
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ser_dev = sys.argv[1]
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if not os.path.exists(ser_dev):
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print("{} is not a valid tty device".format(ser_dev))
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exit(1)
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2016-10-14 02:34:01 +03:00
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import threading
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2016-10-14 19:29:16 +03:00
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t = threading.Thread(target=stream, args=[ser_dev])
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2016-10-14 02:34:01 +03:00
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# classifying as a daemon, so they will die when the main dies
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t.daemon = True
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# begins, must come after daemon definition
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t.start()
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2016-10-14 01:58:31 +03:00
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from wsgiref.simple_server import make_server
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httpd = make_server('0.0.0.0', 8080, application)
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print("Serving on http://0.0.0.0:8080/")
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httpd.serve_forever()
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