| import subprocess | |
| from flask import Flask, request | |
| app = Flask(__name__) | |
| PAGE = ''' | |
| <html> | |
| <body> | |
| <form action="/" method="post"> | |
| <input type="hidden" name="command" value="play"> | |
| <button type="submit" name="submit_param" value="submit_value">Play</button> | |
| </form> | |
| <form action="/" method="post"> | |
| <input type="hidden" name="command" value="stop"> | |
| <button>Stop</button> | |
| </form> | |
| </body> | |
| </html> | |
| ''' | |
| @app.route('/', methods=['GET', 'POST']) | |
| def home(): | |
| if request.method == 'POST': | |
| command = request.values.get('command') | |
| if command == 'play': | |
| subprocess.run(["/bin/bash", "/home/pi/play_sound.sh", "start"]) | |
| return PAGE | |
| elif command == 'stop': | |
| subprocess.run(["/bin/bash", "/home/pi/play_sound.sh", "stop"]) | |
| return PAGE | |
| else: | |
| pass | |
| if request.method == 'GET': | |
| return PAGE | |
| @app.route('/play') | |
| def play(): | |
| """calls play command.""" | |
| subprocess.run(["/bin/bash", "/home/pi/play_sound.sh", "start"]) | |
| return PAGE | |
| @app.route('/stop') | |
| def stop(): | |
| subprocess.run(["/bin/bash", "/home/pi/play_sound.sh", "stop"]) | |
| return PAGE | |
| @app.route('/attempt_play') | |
| def attempt_play(): | |
| """checks status and only hits play if HDMI devices are off.""" | |
| status = subprocess.check_output(['/home/pi/play_sound.sh', 'status']) | |
| if status == b'off': | |
| subprocess.run(["/bin/bash", "/home/pi/play_sound.sh", "start"]) | |
| return PAGE | |
| else: | |
| return 'other device active' | |
| @app.route('/status') | |
| def status(): | |
| status = subprocess.check_output(['/home/pi/play_sound.sh', 'status']) | |
| if status == b'off': | |
| return 'off' | |
| elif status == b'on': | |
| return 'on' | |
| else: | |
| return 'unknown' |
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