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annotate weather_server/server.py @ 1:f66df122f18d

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get the skeleton of a webserver up?
author Paul Fisher <paul@pfish.zone>
date Sun, 29 Sep 2019 00:52:13 -0400
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children cda47993a193
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1
f66df122f18d get the skeleton of a webserver up?
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1 import bson
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2 import flask
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3
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4 from . import common
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5 from . import locations
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6 from . import types
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7
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8
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9 def build_app(root_directory: str) -> flask.Flask:
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10 locs = locations.Locations(root_directory)
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11 app = flask.Flask(__name__)
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12
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13 @app.route('/favicon.ico')
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14 def favicon():
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15 return flask.send_file('static/favicon.ico')
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16
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17 @app.route('/')
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18 def home():
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19 return 'Weather server'
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20
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21 @app.route('/_submit', methods=['POST'])
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22 def submit():
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23 req = flask.request
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24 target = req.args.get('location')
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25 if not target:
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26 flask.abort(404)
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27 try:
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28 target_loc = locs.get(target)
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29 except KeyError:
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30 flask.abort(404)
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31
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32 password = req.args.get('password')
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33 if password != target_loc.password:
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34 flask.abort(401)
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35
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36 reader = bson.decode_file_iter(
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37 req.stream, codec_options=common.BSON_OPTIONS)
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38 entries = [
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39 types.Reading.from_now(
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40 sample_time=item['sample_time'],
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41 temp_c=item['temp_c'],
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42 rh_pct=item['rh_pct'],
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43 )
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44 for item in reader
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45 ]
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46 target_loc.logger.write_rows(entries)
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47 return {'status': 'OK'}
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48
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49 @app.route('/<location>')
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50 def show(location):
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51 try:
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52 loc, logger = locs.get(location)
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53 except KeyError:
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54 flask.abort(404)
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55 data = logger.data
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56 if data:
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57 last_reading = data[-1]
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58 tz = loc.timezone
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59 date = tz.normalize(last_reading.sample_time.astimezone(tz))
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60 else:
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61 last_reading = None
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62 date = None
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63 return flask.render_template(
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64 'location.html',
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65 location=loc,
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66 last_reading=last_reading,
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67 date=date)
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68
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69 return app