def media_upload(files) :
"""Save file to SD card."""
log.info('Upload file')
result = 0
for file in files:
# Check if the file is one of the allowed types/extensions
if file and allowed_file(file.filename):
# Make the filename safe, remove unsupported chars
filename = secure_filename(file.filename)
# Move the file form the temporal folder to the upload
# folder we setup
try :
file.save(os.path.join(app.config['UPLOAD_FOLDER'], filename))
log.debug('file saved : %s',filename)
result = result + 1
except UploadNotAllowed:
log.error('file too large : %s',filename)
else:
log.warning('file not allowed : %s',filename)
# Reload all song on playlist
subprocess.call('mpc clear; mpc add %s; mpc update',app.config['UPLOAD_FOLDER'])
log.debug('result : %s',result)
return result
def media_ctr() :
"""Control media center.
@Imput command : [Upload,Delete,List,Play,Stop,VolUp,VolDown].
titles.
@Return result : [%d,list,Success,Error].
"""
log.info('media_ctr BEGIN')
# Get the JSON data sent from the form
data = request.get_json(force=True)
log.info(data['command'])
if (data['command'] == 'Upload') :
result = media_upload(request.files.getlist("file[]"))
elif (data['command'] == 'Delete') :
result = media_del(data['titles'])
elif (data['command'] == 'List') :
result = media_list()
elif (data['command'] == 'Play') :
result = media_Play()
elif (data['command'] == 'Stop') :
result = media_Stop()
elif (data['command'] == 'VolUp') :
result = media_VolUp()
elif (data['command'] == 'VolDown') :
result = media_VolDown()
else :
log.warning('invalid command')
result = 'None'
log.debug(result)
log.info('media_ctr END')
return jsonify(result=result)
def stream_ctr() :
"""Control streamer.
@Imput command : [Start,Stop,Restart].
@Return result : [Success,Error,None].
"""
log.info('stream_ctr BEGIN')
# Get the JSON data sent from the form
data = request.get_json(force=True)
log.info(data['command'])
if (data['command'] == 'Start') :
result = steam_ctr_start()
elif (data['command'] == 'Stop') :
result = steam_ctr_stop()
elif (data['command'] == 'Restart') :
result = steam_ctr_restart()
else :
log.warning('invalid command')
result = 'None'
log.debug(result)
log.info('stream_ctr END')
return jsonify(result=result)
def activity_ctr() :
"""Control activity.
@Imput command : [Start,Stop,Calibrate].
agi_normal (decimal).
@Return result : [In progress,Success,Stoped,Error,None].
"""
log.info('activity_ctr BEGIN')
# Get the JSON data sent from the form
data = request.get_json(force=True)
log.info(data['command'])
if (data['command'] == 'Start') :
result = 'Error'
if ((db.has_key('act_job_id')) and (db['act_job_id'] != '')) :
result = 'In progress'
else :
# Start the agitation controller
agi_job = agitation_ctr_exe.delay()
result = agi_job.AsyncResult(agi_job.id).state
if (result == states.SUCCESS) :
# Start the activity controller
act_job = activity_ctr_exe.delay()
result = act_job.AsyncResult(act_job.id).state
if (result == states.SUCCESS) :
result = 'Success'
db['act_job_id'] = act_job.AsyncResult(act_job.id).id
elif (data['command'] == 'Stop') :
result = 'Error'
if ((not db.has_key('act_job_id')) or (db['act_job_id'] == '')) :
result = 'Stoped'
else :
# Stop the activity controller
revoke(act_job.id, terminate=True, signal='SIGTERM')
result = act_job.AsyncResult(act_job.id).state
if (result == states.REVOKED) :
# Stop the agitation controller
revoke(agi_job.id, terminate=True, signal='SIGTERM')
result = agi_job.AsyncResult(agi_job.id).state
if (result == states.REVOKED) :
result = 'Success'
db['act_job_id'] = ''
elif (data['command'] == 'Calibrate') :
# Calibrate the normale sound level
result = normal_levels(data['agi_normal'])
#TODO : adjust intervals
else :
log.warning('invalid command')
result = 'None'
log.debug(result)
log.info('activity_ctr END')
return jsonify(result=result)
def media_Play() :
"""Play playlist songs."""
log.info('Play songs')
try :
subprocess.call('mpc play ')
log.debug('Play')
result = 'Success'
except subprocess.CalledProcessError :
# file not deleted
log.error('Play error')
log.warning('Return code : %s',subprocess.CalledProcessError.returncode)
result = 'Error'
log.debug('result : %s',result)
return result
def media_VolDown() :
"""Volume down."""
log.info('Volume Down')
try :
subprocess.call('mpc volume - ')
log.debug('Volume decreased')
result = 'Success'
except subprocess.CalledProcessError :
# file not deleted
log.error('Volume decrease error')
log.warning('Return code : %s',subprocess.CalledProcessError.returncode)
result = 'Error'
log.debug('result : %s',result)
return result
def media_list() :
"""List song files."""
log.info('List songs')
try :
#TODO : list command
titles = subprocess.check_output('')
log.debug('Playlist titles : %s',titles)
titles = titles.splitlines()
result = titles
except subprocess.CalledProcessError :
# file not deleted
log.error('list error')
log.warning('Return code : %s',subprocess.CalledProcessError.returncode)
result = 'Error'
log.debug('result : %s',result)
return result
def media_del(files) :
"""Delete file from SD card and reload playlist."""
log.info('Delete file')
result = 0
for file in files:
try :
#delete file from directory
subprocess.call('rm -f %s',file)
log.debug('file deleted : %s',file)
result = result + 1
except subprocess.CalledProcessError :
# file not deleted
log.error('file not deleted')
log.warning('Return code : %s',subprocess.CalledProcessError.returncode)
# Reload all song on playlist
subprocess.call('mpc clear; mpc add %s; mpc update',app.config['UPLOAD_FOLDER'])
log.debug('result : %s',result)
return result
