Adds CEC support and minor dependency refactoring

docker/Dockerfile.base

@@ -9,6 +9,7 @@ RUN apt-get update && \
         git \
         git-core \
         ifupdown \
+        libcec-dev  \
         libffi-dev \
         libraspberrypi0 \
         libssl-dev \

lib/diagnostics.py

@@ -3,6 +3,7 @@
 import netifaces
 import os
 import sh
+import cec
 import socket
 import sqlite3
 import re
@@ -13,6 +14,8 @@
 from datetime import datetime
 
 
+cec.init()
+
 def parse_cpu_info():
     cpu_info = {
         'cpu_count': 0
@@ -63,16 +66,15 @@ def get_monitor_status():
 
 
 def get_display_power():
+    """
+    Queries the TV using CEC
+    """
+    tv = cec.Device(cec.CECDEVICE_TV)
     try:
-        display_status = sh.vcgencmd('display_power').stdout.strip().split('=')
-        if display_status[1] == '1':
-            return 'On'
-        elif display_status[1] == '0':
-            return 'Off'
-        else:
-            return 'Unknown'
-    except Exception:
-        return 'Unable to determine display power.'
+        tv_status = tv.is_on()
+    except IOError:
+        return 'Unknown'
+    return tv_status
 
 
 def get_network_interfaces():

requirements/requirements.host.txt

@@ -1,2 +1,3 @@
+ansible==2.8.8
 docker==4.3.1
 docker-compose==1.26.2

requirements/requirements.txt

@@ -1,30 +1,30 @@
-ansible==2.8.8
+Flask-Cors==3.0.9
+Flask==1.1.2
+Jinja2==2.11.2
+Mako==1.1.3
+MarkupSafe==1.1.1
+Werkzeug==1.0.1
+cec==0.2.7
 celery==4.4.7
 certifi==2020.6.20
 cffi==1.14.3
 click==7.1.2
 configparser==4.0.2
 cryptography==3.2.1
-docker-py==1.10.6
-Flask-Cors==3.0.9
 flask-restful-swagger-2==0.35
 flask-swagger-ui==3.36.0
-Flask==1.1.2
 futures==3.3.0
 gevent-websocket==0.10.1
 gevent==20.9.0
 gunicorn==19.10.0
 hurry.filesize==0.9
-Jinja2==2.11.2
 kombu==4.6.11
-Mako==1.1.3
-MarkupSafe==1.1.1
 mixpanel==4.7.0
 netifaces==0.10.9
 psutil==5.7.3
+pyOpenSSL==19.1.0
 pyasn1==0.4.8
 pydbus==0.6.0
-pyOpenSSL==19.1.0
 python-dateutil==2.8.1
 pytz==2020.1
 pyzmq==19.0.2
@@ -35,5 +35,4 @@ six==1.15.0
 uptime==3.0.1
 urllib3==1.25.11
 vine==1.3.0
-Werkzeug==1.0.1
 youtube_dl>=2020.9.20

server.py

@@ -2,7 +2,7 @@
 # -*- coding: utf-8 -*-
 
 __author__ = "Screenly, Inc"
-__copyright__ = "Copyright 2012-2020, Screenly, Inc"
+__copyright__ = "Copyright 2012-2021, Screenly, Inc"
 __license__ = "Dual License: GPLv2 and Commercial License"
 
 import json

templates/system-info.html

@@ -44,15 +44,15 @@ <h5 class="page-header">
                         <td>{{ context.display_info }}</td>
                     </tr>
                     <tr>
-                        <th scope="row">Display Power</th>
+                        <th scope="row">Display Power (CEC)</th>
                         <td>{{ context.display_power }}</td>
                     </tr>
                     <tr>
                         <th scope="row">Raspberry Model</th>
                         <td>{{ context.raspberry_model }}</td>
                     </tr>
                     <tr>
-                        <th scope="row">Screenly Version</th>
+                        <th scope="row">Screenly OSE Version</th>
                         <td>{{ context.screenly_version }}</td>
                     </tr>
                     <tr>