class sockServer:
PORT = 5000 # Arbitrary non-privileged port
MESSAGE_SIGNATURE = 'cachemoney'
BUFF_SIZE = 512
MIN_PIC_LINES = 50
OUTPUT_DIR = 'outputFiles'
UNPROCESSED_DIR = os.path.join( OUTPUT_DIR, 'Unprocessed' )
PROCESSED_DIR = os.path.join( OUTPUT_DIR, 'Processed' )
PROCESSING_DIR = os.path.join( OUTPUT_DIR, 'Processing' )
OUTPUT_EXT = 'jpg'
numReceived = 0
def __init__(self, debug=False):
self.debug = debug
if self.debug:
logLevel = logging.DEBUG
else:
logLevel = logging.INFO
logging.basicConfig(format='%(levelname)s: %(message)s', level=logLevel)
if not os.path.isdir(self.OUTPUT_DIR):
os.mkdir(self.OUTPUT_DIR)
if not os.path.isdir(self.UNPROCESSED_DIR):
os.mkdir(self.UNPROCESSED_DIR)
if not os.path.isdir(self.PROCESSED_DIR):
os.mkdir(self.PROCESSED_DIR)
if not os.path.isdir(self.PROCESSING_DIR):
os.mkdir(self.PROCESSING_DIR)
self.db = DB(debug = self.debug)
self.rsync = rsync( self.debug )
if socket.gethostname() == 'cet-sif':
self.OnServer = True
# self.host = socket.gethostbyname( 'cet-research.colorado.edu' )
self.host = '128.138.248.205'
else:
self.OnServer = False
self.host = socket.gethostbyname(socket.gethostname())
# self.host = socket.gethostbyname(socket.gethostname())
def runNonBlockingSocket(self):
listener = eventlet.listen( (self.host, self.PORT) )
print 'Recieving on %s, %s'%(self.host, self.PORT)
eventlet.serve(listener, self.recieveData)
def recieveData(self, client_sock, client_addr):
'''Callback function for every time a client connects to the nonblocking socket'''
print "client connected", client_addr
first = True
lines = []
while 1:
line = client_sock.recv( self.BUFF_SIZE )
if first:
tic = time.time()
first = False
if not line:
break
lines.append(line)
if len(lines) == 0:
logging.info('No message provided. Ignoring client.')
return
# Check signature and get image file name
if len(lines[0].split('\n')) < 2:
logging.info('Incoming message is not the required format. Ignoring client.')
return # ignore this message
signature, imageName = tuple( lines[0].split('\n')[0:2] )
if self.MESSAGE_SIGNATURE != signature:
logging.info('Illegal message recieved with signature:\n%s' % lines[0])
return # ignore this message
lines[0] = ''.join( lines[0].split('%s\n' % imageName)[1:] )
#print "imageName: ", imageName
logging.info(imageName)
cameraID, timeTaken, lat, lon, powerData = tuple( imageName.split('_') )
groupID = self.numReceived%2
self.numReceived += 1
if len(lines) > self.MIN_PIC_LINES:
lat = float( lat.replace(',','.') )
lon = float( lon.replace(',','.') )
timeTaken = time.strptime( timeTaken, '%H%M%S')
groupID = self.timeToGroupID( timeTaken )
self.db.setCameraGeoTag(cameraID, lat, lon)
imPath = self.saveImg(lines, groupID, cameraID)
if self.OnServer:
self.rsync.sendPhotoToCETResearch( os.path.dirname(imPath), verbose=False )
logging.debug('Image added to queue')
else:
self.db.writePowerData( lines[0], 'TEST_GEOTAG', datetime.datetime.now() )
logging.debug('Power data written to database')
self.db.syncPowerWithCETResearch(verbose=False)
logging.debug( 'Total time taken = %f' % (time.time()-tic) )
def groupIDtoDatetime( self, groupID ):
today = datetime.date.today()
midnight = datetime.datetime(year=today.year, month=today.month, day=today.day,
hour=0, minute=0, second=0)
thirtySec = datetime.timedelta(seconds=30)
return midnight + (groupID * thirtySec)
def timeToGroupID( self, t ):
return int( 120 * t.tm_hour + 2 * t.tm_min + floor(t.tm_sec/30) )
def saveImg(self, dataLines, groupID, sensorID):
idealDateTimeTaken = self.groupIDtoDatetime( groupID )
timeStr = idealDateTimeTaken.strftime("%h%d_%Y-%H_%M_%S")
now = datetime.datetime.now()
nowStr = now.strftime("%h%d_%Y %H_%M_%S")
outputFileDir = os.path.join( self.UNPROCESSED_DIR,
'%i-%s' % (groupID, timeStr) )
if os.path.isdir(outputFileDir) is False:
os.mkdir( outputFileDir )
outputFilePath = os.path.join( outputFileDir,
'%i_%s_%s.%s' % (groupID, sensorID,timeStr,self.OUTPUT_EXT) )
f = open(outputFilePath, 'w')
for line in dataLines:
f.write( line )
f.close()
logging.info('%s written successfully' % outputFilePath)
return outputFilePath
'''
==============================================================================
=============================== OLD CODE BELOW ===============================
==============================================================================
'''
def runSocket(self,customHostPort=None):
if customHostPort:
host, port = customHostPort
else:
host, port = self.host, self.PORT
self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self.sock.bind((host, port))
self.sock.listen(1)
self.conn, self.addr = self.sock.accept()
logging.debug( 'Connected by %s' % (self.addr,) )
def recieveOne(self):
self.runSocket()
lines = []
first = True
while 1:
line = self.conn.recv( self.BUFF_SIZE )
if first:
tic = time.time()
first = False
lines.append( line )
if not line:
break
self.saveImg(lines)
print 'Total time taken = %f' % (time.time()-tic)
self.conn.close()
exit()
def reciveFileName(self):
filename = self.conn.recv( self.BUFF_SIZE )
return filename
def recieveArray(self):
self.runSocket()
line = self.conn.recv( self.BUFF_SIZE )
logging.debug(line)
self.conn.close()
exit()
def keepRecievingStrs(self):
lines = []
while 1:
self.runSocket()
try:
while 1:
line = self.conn.recv( self.BUFF_SIZE )
if not line:
break
lines.append(line)
except socket.error, e:
print e
if len(lines) == 1:
logging.debug(lines[0])
else:
logging.debug('%d lines received' % len(lines))
# print lines[:50]
self.conn.close()
self.runSocket()
class sockServer:
# Constants
PORT = 5000 # Arbitrary non-privileged port
# 'Shared secret' code at the beginning of each message for a crude attempt at security
MESSAGE_SIGNATURE = 'cachemoney'
BUFF_SIZE = 512
MIN_PIC_LINES = 50
'''The various directories which comprise our file system based processing queue.'''
OUTPUT_DIR = 'outputFiles'
UNPROCESSED_DIR = os.path.join( OUTPUT_DIR, 'Unprocessed' )
PROCESSED_DIR = os.path.join( OUTPUT_DIR, 'Processed' )
PROCESSING_DIR = os.path.join( OUTPUT_DIR, 'Processing' )
OUTPUT_EXT = 'jpg'
def __init__(self, debug=False):
self.debug = debug # Set debug mode
if self.debug:
logLevel = logging.DEBUG
else:
logLevel = logging.INFO
# Set logging level
logging.basicConfig(format='%(levelname)s: %(message)s', level=logLevel)
if not os.path.isdir(self.OUTPUT_DIR):
os.mkdir(self.OUTPUT_DIR)
if not os.path.isdir(self.UNPROCESSED_DIR):
os.mkdir(self.UNPROCESSED_DIR)
if not os.path.isdir(self.PROCESSED_DIR):
os.mkdir(self.PROCESSED_DIR)
if not os.path.isdir(self.PROCESSING_DIR):
os.mkdir(self.PROCESSING_DIR)
self.db = DB(debug = self.debug)
self.rsync = rsync( self.debug )
if socket.gethostname() == 'cet-sif':
self.OnServer = True
self.host = '128.138.248.205' # Static ip resolution of cet-sif.colorado.edu
else:
self.OnServer = False
self.host = socket.gethostbyname(socket.gethostname()) # Set to localhost
def runNonBlockingSocket(self):
'''Run the nonblocking socket server. Any time a client connects to
(self.host, self.PORT), recieveData is called to handle the request.'''
listener = eventlet.listen( (self.host, self.PORT) )
logging.info( 'Recieving on %s, %s' % (self.host, self.PORT) )
eventlet.serve(listener, self.recieveData)
def recieveData(self, client_sock, client_addr):
'''Callback function for every time a client connects to the nonblocking socket'''
logging.info( "client connected", client_addr )
first = True
lines = []
'''Collect all of the incoming data lines, each of size <BUFF_SIZE>.'''
while 1:
line = client_sock.recv( self.BUFF_SIZE )
if first:
tic = time.time()
first = False
if not line:
break
lines.append(line)
'''Check the validity of the message. Message cannot be empty, and must contain
<MESSAGE_SIGNATURE> in the correct place for us to process the information
contained within the received lines'''
if len(lines) == 0:
logging.info('No message provided. Ignoring client.')
return
# Check signature and get image file name
if len(lines[0].split('\n')) < 2:
logging.info('Incoming message is not the required format. Ignoring client.')
return # ignore this message
signature, imageName = tuple( lines[0].split('\n')[0:2] )
if self.MESSAGE_SIGNATURE != signature:
logging.info('Illegal message recieved with signature:\n%s' % lines[0])
return # ignore this message
lines[0] = ''.join( lines[0].split('%s\n' % imageName)[1:] )
cameraID, timeTaken, lat, lon, powerData = tuple( imageName.split('_') )
# Detect datatype of message, and process accordingly.
if len(lines) > self.MIN_PIC_LINES:
# Message is a picture
lat = float( lat.replace(',','.') )
lon = float( lon.replace(',','.') )
timeTaken = time.strptime( timeTaken, '%H%M%S')
groupID = self.timeToGroupID( timeTaken )
self.db.setCameraGeoTag(cameraID, lat, lon)
imPath = self.saveImg(lines, groupID)
if self.OnServer:
self.rsync.sendPhotoToCETResearch( os.path.dirname(imPath), verbose=False )
logging.debug('Image added to queue')
else:
# Message is a power reading
temp = hexlify(lines[0][0])+hexlify(lines[0][1])+hexlify(lines[0][2])
temp = int(temp,16)<<1
value = float(temp)/((2**24) -1)
value = (value/0.36)*60
logging.debug( 'Power=%f retrieved' % value )
self.db.writePowerData( value, 'TEST_GEOTAG', datetime.datetime.now() )
logging.debug('Power data written to database')
self.db.syncPowerWithCETResearch(verbose=False)
logging.debug( 'Total time taken = %f' % (time.time()-tic) )
def groupIDtoDatetime( self, groupID ):
'''Convert a groupID to datetime. Note that groupID's are incremented
every 30 seconds, starting at midnight (groupID = 0)'''
today = datetime.date.today()
midnight = datetime.datetime(year=today.year, month=today.month, day=today.day,
hour=0, minute=0, second=0)
thirtySec = datetime.timedelta(seconds=30)
return midnight + (groupID * thirtySec)
def timeToGroupID( self, t ):
'''Convert a datetime to groupID. Note that groupID's are incremented
every 30 seconds, starting at midnight (groupID = 0)'''
return int( 120 * t.tm_hour + 2 * t.tm_min + floor(t.tm_sec/30) )
def saveImg(self, dataLines, groupID):
'''Save an image and place it at back of queue (Unprocessed directory).'''
idealDateTimeTaken = self.groupIDtoDatetime( groupID )
timeStr = idealDateTimeTaken.strftime("%h%d_%Y-%H_%M_%S")
now = datetime.datetime.now()
nowStr = now.strftime("%h%d_%Y %H_%M_%S")
outputFileDir = os.path.join( self.UNPROCESSED_DIR,
'%i-%s' % (groupID,timeStr) )
if os.path.isdir(outputFileDir) is False:
os.mkdir( outputFileDir )
outputFilePath = os.path.join( outputFileDir,
'%s.%s' % (nowStr,self.OUTPUT_EXT) )
f = open(outputFilePath, 'w')
for line in dataLines:
f.write( line )
f.close()
logging.info('%s written successfully' % outputFilePath)
return outputFilePath
def runSocket(self,customHostPort=None):
'''Run a socket. This implementation is blocking.'''
if customHostPort:
host, port = customHostPort
else:
host, port = self.host, self.PORT
self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self.sock.bind((host, port))
self.sock.listen(1)
self.conn, self.addr = self.sock.accept()
logging.debug( 'Connected by %s' % (self.addr,) )
def recieveOne(self):
'''Recieve one image, and save it using saveImg. Then we close the program'''
self.runSocket()
lines = []
first = True
while 1:
line = self.conn.recv( self.BUFF_SIZE )
if first:
tic = time.time()
first = False
lines.append( line )
if not line:
break
self.saveImg(lines)
logging.info( 'Total time taken = %f' % (time.time()-tic) )
self.conn.close()
exit()
def keepRecievingStrs(self):
'''Keep recieving strings, and keep incrementing the lines array'''
lines = []
while 1:
self.runSocket()
try:
while 1:
line = self.conn.recv( self.BUFF_SIZE )
if not line:
break
lines.append(line)
except socket.error, e:
logging.error( e )
if len(lines) == 1:
logging.debug(lines[0])
else:
logging.debug('%d lines received' % len(lines))
self.conn.close()
self.runSocket()
