Mel imprimante est débranché ou plus de papier

daemon.py

@@ -3,11 +3,16 @@
 
 from __future__ import print_function
 import sys,os,pwd,grp
+# Bad namming: change namming
+from AdafruitThermal import Adafruit_Thermal as AdafruitThermal
 import common
 import pika
 import json
 import dump
 import config
+import threading, time, smtplib
+from email.mime.text import MIMEText
+from config import DEVICE
 
 def run():
     conn = pika.BlockingConnection(config.PARAMS)
@@ -22,9 +27,60 @@ def run():
     conn.close()
 # fork en arrière plan + pidfile
 
+def checkPaper():
+    printer = AdafruitThermal(DEVICE, 19200, timeout=5)
+    messageCourant =  False
+    messagePapier = False
+
+    def sendMel(msgfile, etat):
+        fp = open(msgfile, 'rb')
+        # Create a text/plain message
+        msg = MIMEText(fp.read())
+        fp.close()
+
+        # me == the sender's email address
+        # you == the recipient's email address
+        msg['Subject'] = '''Etat de l'imprimante thermique : %s''' % etat
+        msg['From'] = 'oison@crans.org'
+        msg['To'] = 'arrighi@crans.org'
+
+        # Send the message via our own SMTP server, but don't include the
+        # envelope header.
+        s = smtplib.SMTP('smtp.crans.org', 25)
+        s.sendmail('oison@crans.org', ['arrighi@crans.org'], msg.as_string())
+        s.quit()
+
+    def checkPrinter(dejaVu, messageCourant, messagePapier):
+        try:
+            papier = printer.hasPaper()
+            if messageCourant:
+                sendMel('melSecteur', 'alimentation')
+                messageCourant = False
+            else:
+                if not (messagePapier or papier):
+                    sendMel('melPasPapier', 'papier')
+                    messagePapier = True
+                if messagePapier and papier:
+                    sendMel('melPapier', 'papier')
+                    messagePapier = False
+        except TypeError:
+            if not messageCourant:
+                if dejaVu:
+                    sendMel('melSurBatterie', 'alimentation')
+                    messageCourant = True
+                else:
+                    time.sleep(600)
+                    messageCourant, messagePapier = checkPrinter(True, messageCourant, messagePapier)
+        return messageCourant, messagePapier
+
+    while True:
+        time.sleep(60)
+        messageCourant, messagePapier = checkPrinter(False, messageCourant, messagePapier)
     
 if __name__ == "__main__":
     if '-fg' in sys.argv:
+        thHasPaper = threading.Thread(target = checkPaper, name = 'checkPaper')
+        thHasPaper.start()
         run()
         exit()
     # do the UNIX double-fork magic, see Stevens' "Advanced
@@ -55,6 +111,9 @@ if __name__ == "__main__":
         print("fork #2 failed: %d (%s)" % (e.errno, e.strerror),file=sys.stderr)
         sys.exit(1)
 
-    # start the daemon main loop
+    # start the daemon thread
+    thHasPaper = threading.Thread(target = checkPaper, name = 'checkPaper')
+    thHasPaper.start()
+    #main loop
     run()