def setFiles():
global config
global localJsonFileName
global localCsvFileName
global wwwJsonFileName
global wwwCsvFileName
global lastDay
global day
# create directory for the data if it does not exist
beerFileName = config['beerName']
dataPath = util.addSlash(
util.addSlash(util.scriptPath()) + 'data/' + beerFileName)
wwwDataPath = util.addSlash(
util.addSlash(config['wwwPath']) + 'data/' + beerFileName)
if not os.path.exists(dataPath):
os.makedirs(dataPath)
os.chmod(dataPath, 0775) # give group all permissions
if not os.path.exists(wwwDataPath):
os.makedirs(wwwDataPath)
os.chmod(wwwDataPath, 0775) # give group all permissions
# Keep track of day and make new data file for each day
day = time.strftime("%Y-%m-%d")
lastDay = day
# define a JSON file to store the data
jsonFileName = beerFileName + '-' + day
#if a file for today already existed, add suffix
if os.path.isfile(dataPath + jsonFileName + '.json'):
i = 1
while os.path.isfile(dataPath + jsonFileName + '-' + str(i) + '.json'):
i += 1
jsonFileName = jsonFileName + '-' + str(i)
localJsonFileName = dataPath + jsonFileName + '.json'
brewpiJson.newEmptyFile(localJsonFileName)
# Define a location on the web server to copy the file to after it is written
wwwJsonFileName = wwwDataPath + jsonFileName + '.json'
# Define a CSV file to store the data as CSV (might be useful one day)
localCsvFileName = (dataPath + beerFileName + '.csv')
wwwCsvFileName = (wwwDataPath + beerFileName + '.csv')
# create new empty json file
brewpiJson.newEmptyFile(localJsonFileName)
def save_settings_to_file(self):
# This is format" "2019-01-08-16-50-15"
oldSettingsFileName = 'settings-{0}.json'.format(time.strftime("%Y-%m-%dT%H-%M-%S"))
settingsBackupDir = '{0}settings/controller-backup/'.format(util.addSlash(util.scriptPath()))
if not os.path.exists(settingsBackupDir):
os.makedirs(settingsBackupDir)
# Set owner and permissions for directory
fileMode = stat.S_IRWXU | stat.S_IRWXG | stat.S_IROTH | stat.S_IXOTH # 775
owner = 'brewpi'
group = 'brewpi'
uid = pwd.getpwnam(owner).pw_uid
gid = grp.getgrnam(group).gr_gid
os.chown(settingsBackupDir, uid, gid) # chown dir
os.chmod(settingsBackupDir, fileMode) # chmod dir
oldSettingsFilePath = os.path.join(
settingsBackupDir, oldSettingsFileName)
oldSettingsFile = open(oldSettingsFilePath, 'w')
oldSettingsFile.write(json.dumps(self.oldSettings))
oldSettingsFile.truncate()
oldSettingsFile.close()
# Set owner and permissions for file
fileMode = stat.S_IRUSR | stat.S_IWUSR | stat.S_IRGRP | stat.S_IWGRP # 660
owner = 'brewpi'
group = 'brewpi'
uid = pwd.getpwnam(owner).pw_uid
gid = grp.getgrnam(group).gr_gid
os.chown(oldSettingsFilePath, uid, gid) # chown file
os.chmod(oldSettingsFilePath, fileMode) # chmod file
printStdErr("\nSaved old settings to file {0}.".format(oldSettingsFileName))
def getNewTemp(scriptPath):
with open(util.addSlash(scriptPath) + 'settings/tempProfile.csv',
'rU') as csvfile:
dialect = csv.Sniffer().sniff(csvfile.readline())
csvfile.seek(0)
temperatureReader = csv.reader(csvfile, dialect)
next(temperatureReader
) # Discard the first row, which is the table header
prevTemp = None
nextTemp = None
interpolatedTemp = -99
prevDate = None
nextDate = None
now = time.mktime(
time.localtime()) # Get current time in seconds since epoch
for row in temperatureReader:
dateString = row[0]
try:
date = time.mktime(
time.strptime(dateString, "%Y-%m-%dT%H:%M:%S"))
except ValueError:
continue # Skip dates that cannot be parsed
try:
temperature = float(row[1])
except ValueError:
if row[1].strip() == '':
# Cell is left empty, this is allowed to disable temperature control in part of the profile
temperature = None
else:
# Invalid number string, skip this row
continue
prevTemp = nextTemp
nextTemp = temperature
prevDate = nextDate
nextDate = date
timeDiff = now - nextDate
if timeDiff < 0:
if prevDate is None:
interpolatedTemp = nextTemp # First set point is in the future
break
else:
if prevTemp is None or nextTemp is None:
# When the previous or next temperature is an empty cell, disable temperature control.
# This is useful to stop temperature control after a while or to not start right away.
interpolatedTemp = None
else:
interpolatedTemp = ((now - prevDate) /
(nextDate - prevDate) *
(nextTemp - prevTemp) + prevTemp)
interpolatedTemp = round(interpolatedTemp, 2)
break
if interpolatedTemp == -99: # All set points in the past
interpolatedTemp = nextTemp
return interpolatedTemp
def setFiles():
global config
global localJsonFileName
global localCsvFileName
global wwwJsonFileName
global wwwCsvFileName
global lastDay
global day
# create directory for the data if it does not exist
beerFileName = config['beerName']
dataPath = util.addSlash(util.addSlash(util.scriptPath()) + 'data/' + beerFileName)
wwwDataPath = util.addSlash(util.addSlash(config['wwwPath']) + 'data/' + beerFileName)
if not os.path.exists(dataPath):
os.makedirs(dataPath)
os.chmod(dataPath, 0775) # give group all permissions
if not os.path.exists(wwwDataPath):
os.makedirs(wwwDataPath)
os.chmod(wwwDataPath, 0775) # give group all permissions
# Keep track of day and make new data file for each day
day = time.strftime("%Y-%m-%d")
lastDay = day
# define a JSON file to store the data
jsonFileName = beerFileName + '-' + day
#if a file for today already existed, add suffix
if os.path.isfile(dataPath + jsonFileName + '.json'):
i = 1
while os.path.isfile(dataPath + jsonFileName + '-' + str(i) + '.json'):
i += 1
jsonFileName = jsonFileName + '-' + str(i)
localJsonFileName = dataPath + jsonFileName + '.json'
brewpiJson.newEmptyFile(localJsonFileName)
# Define a location on the web server to copy the file to after it is written
wwwJsonFileName = wwwDataPath + jsonFileName + '.json'
# Define a CSV file to store the data as CSV (might be useful one day)
localCsvFileName = (dataPath + beerFileName + '.csv')
wwwCsvFileName = (wwwDataPath + beerFileName + '.csv')
# create new empty json file
brewpiJson.newEmptyFile(localJsonFileName)
def startBeer(beerName):
global config
global localJsonFileName
global localCsvFileName
global wwwJsonFileName
global wwwCsvFileName
global lastDay
global day
# create directory for the data if it does not exist
dataPath = util.addSlash(config["scriptPath"]) + "data/" + beerName + "/"
wwwDataPath = util.addSlash(config["wwwPath"]) + "data/" + beerName + "/"
if not os.path.exists(dataPath):
os.makedirs(dataPath)
os.chmod(dataPath, 0775) # give group all permissions
if not os.path.exists(wwwDataPath):
os.makedirs(wwwDataPath)
os.chmod(wwwDataPath, 0775) # sudgive group all permissions
# Keep track of day and make new data tabe for each day
# This limits data table size, which can grow very big otherwise
day = time.strftime("%Y-%m-%d")
lastDay = day
# define a JSON file to store the data table
jsonFileName = config["beerName"] + "-" + day
# if a file for today already existed, add suffix
if os.path.isfile(dataPath + jsonFileName + ".json"):
i = 1
while os.path.isfile(dataPath + jsonFileName + "-" + str(i) + ".json"):
i += 1
jsonFileName = jsonFileName + "-" + str(i)
localJsonFileName = dataPath + jsonFileName + ".json"
brewpiJson.newEmptyFile(localJsonFileName)
# Define a location on the web server to copy the file to after it is written
wwwJsonFileName = wwwDataPath + jsonFileName + ".json"
# Define a CSV file to store the data as CSV (might be useful one day)
localCsvFileName = dataPath + config["beerName"] + ".csv"
wwwCsvFileName = wwwDataPath + config["beerName"] + ".csv"
changeWwwSetting("beerName", beerName)
def getNewTemp(scriptPath):
temperatureReader = csv.reader( open(util.addSlash(scriptPath) + 'settings/tempProfile.csv', 'rb'),
delimiter=',', quoting=csv.QUOTE_ALL)
temperatureReader.next() # discard the first row, which is the table header
prevTemp = None
nextTemp = None
interpolatedTemp = -99
prevDate = None
nextDate = None
now = time.mktime(time.localtime()) # get current time in seconds since epoch
for row in temperatureReader:
dateString = row[0]
try:
date = time.mktime(time.strptime(dateString, "%Y-%m-%dT%H:%M:%S"))
except ValueError:
continue # skip dates that cannot be parsed
try:
temperature = float(row[1])
except ValueError:
if row[1].strip() == '':
# cell is left empty, this is allowed to disable temperature control in part of the profile
temperature = None
else:
# invalid number string, skip this row
continue
prevTemp = nextTemp
nextTemp = temperature
prevDate = nextDate
nextDate = date
timeDiff = now - nextDate
if timeDiff < 0:
if prevDate is None:
interpolatedTemp = nextTemp # first set point is in the future
break
else:
if prevTemp is None or nextTemp is None:
# When the previous or next temperature is an empty cell, disable temperature control.
# This is useful to stop temperature control after a while or to not start right away.
interpolatedTemp = None
else:
interpolatedTemp = ((now - prevDate) / (nextDate - prevDate) * (nextTemp - prevTemp) + prevTemp)
interpolatedTemp = round(interpolatedTemp, 2)
break
if interpolatedTemp == -99: # all set points in the past
interpolatedTemp = nextTemp
return interpolatedTemp
def changeWwwSetting(settingName, value):
wwwSettingsFileName = util.addSlash(config['wwwPath']) + 'userSettings.json'
if os.path.exists(wwwSettingsFileName):
wwwSettingsFile = open(wwwSettingsFileName, 'r+b')
try:
wwwSettings = json.load(wwwSettingsFile) # read existing settings
except json.JSONDecodeError:
logMessage("Error in decoding userSettings.json, creating new empty json file")
wwwSettings = {} # start with a fresh file when the json is corrupt.
else:
wwwSettingsFile = open(wwwSettingsFileName, 'w+b') # create new file
wwwSettings = {}
wwwSettings[settingName] = str(value)
wwwSettingsFile.seek(0)
wwwSettingsFile.write(json.dumps(wwwSettings))
wwwSettingsFile.truncate()
wwwSettingsFile.close()
def changeWwwSetting(settingName, value):
wwwSettingsFileName = util.addSlash(config['wwwPath']) + 'userSettings.json'
if os.path.exists(wwwSettingsFileName):
wwwSettingsFile = open(wwwSettingsFileName, 'r+b')
try:
wwwSettings = json.load(wwwSettingsFile) # read existing settings
except json.JSONDecodeError:
logMessage("Error in decoding userSettings.json, creating new empty json file")
wwwSettings = {} # start with a fresh file when the json is corrupt.
else:
wwwSettingsFile = open(wwwSettingsFileName, 'w+b') # create new file
wwwSettings = {}
wwwSettings[settingName] = str(value)
wwwSettingsFile.seek(0)
wwwSettingsFile.write(json.dumps(wwwSettings))
wwwSettingsFile.truncate()
wwwSettingsFile.close()
def __init__(self, cfg):
""" Creates a BrewPi socket object and reads the settings from a BrewPi ConfigObj.
Does not create a socket, just prepares the settings.
Args:
cfg: a ConfigObj object form a BrewPi config file
"""
self.type = 'f' # default to file socket
self.file = None
self.host = 'localhost'
self.port = None
self.sock = 0
isWindows = sys.platform.startswith('win')
useInternetSocket = bool(cfg.get('useInternetSocket', isWindows))
if useInternetSocket:
self.port = cfg.get('socketPort', 6332)
self.type = 'i'
else:
self.file = util.addSlash(cfg['scriptPath']) + 'BEERSOCKET'
# You should have received a copy of the GNU General Public License
# along with BrewPi. If not, see <http://www.gnu.org/licenses/>.
import serial
import msvcrt
import sys
import os
import simplejson as json
import expandLogMessage
import BrewPiUtil as util
# Read in command line arguments
if len(sys.argv) < 2:
print >> sys.stderr, 'Using default config path ./settings/config.cfg, to override use : %s <config file full path>' % sys.argv[0]
configFile = util.addSlash(sys.path[0]) + 'settings/config.cfg'
else:
configFile = sys.argv[1]
if not os.path.exists(configFile):
sys.exit('ERROR: Config file "%s" was not found!' % configFile)
config = util.readCfgWithDefaults(configFile)
print "***** BrewPi Windows Test Terminal ****"
print "This simple Python script lets you send commands to the Arduino."
print "It also echoes everything the Arduino returns."
print "On known debug ID's in JSON format, it expands the messages to the full message"
print "press 's' to send a string to the Arduino, press 'q' to quit"
ser = 0
if len(allProcesses.update()) > 1: # if I am not the only one running
allProcesses.quitAll()
time.sleep(2)
if len(allProcesses.update()) > 1:
printStdErr("Asking the other processes to quit nicely did not work. Killing them with force!")
# redirect output of stderr and stdout to files in log directory
if o in ('-l', '--log'):
logToFiles = True
# only start brewpi when the dontrunfile is not found
if o in ('-d', '--dontrunfile'):
checkDontRunFile = True
if o in ('--checkstartuponly'):
checkStartupOnly = True
if not configFile:
configFile = util.addSlash(sys.path[0]) + 'settings/config.cfg'
config = util.readCfgWithDefaults(configFile)
dontRunFilePath = os.path.join(config['wwwPath'], 'do_not_run_brewpi')
# check dont run file when it exists and exit it it does
if checkDontRunFile:
if os.path.exists(dontRunFilePath):
# do not print anything, this will flood the logs
exit(0)
# check for other running instances of BrewPi that will cause conflicts with this instance
allProcesses = BrewPiProcess.BrewPiProcesses()
allProcesses.update()
myProcess = allProcesses.me()
if allProcesses.findConflicts(myProcess):
import msvcrt
import sys
import os
# import simplejson as json
import json
# append parent directory to be able to import files
sys.path.append(os.path.dirname(os.path.abspath(__file__)) + "/..")
import expandLogMessage
import BrewPiUtil as util
# Read in command line arguments
if len(sys.argv) < 2:
print >> sys.stderr, 'Using default config path ./settings/config.cfg, to override use : %s <config file full path>' % sys.argv[
0]
configFile = util.addSlash(sys.path[0]) + '../settings/config.cfg'
else:
configFile = sys.argv[1]
if not os.path.exists(configFile):
sys.exit('ERROR: Config file "%s" was not found!' % configFile)
config = util.readCfgWithDefaults(configFile)
print "***** BrewPi Windows Test Terminal ****"
print "This simple Python script lets you send commands to the Arduino."
print "It also echoes everything the Arduino returns."
print "On known debug ID's in JSON format, it expands the messages to the full message"
print "press 's' to send a string to the Arduino, press 'q' to quit"
# open serial port
# complete line received, [0] is complete line [1] is separator [2] is the rest
self.buffer = lines[2]
return self.__asciiToUnicode(lines[0])
# remove extended ascii characters from string, because they can raise UnicodeDecodeError later
def __asciiToUnicode(self, s):
s = s.replace(chr(0xB0), '°')
return unicode(s, 'ascii', 'ignore')
if __name__ == '__main__':
# some test code that requests data from serial and processes the response json
import simplejson
import time
import BrewPiUtil as util
config_file = util.addSlash(sys.path[0]) + 'settings/config.cfg'
config = util.readCfgWithDefaults(config_file)
ser = util.setupSerial(config, time_out=0)
if not ser:
printStdErr("Could not open Serial Port")
exit()
bg_ser = BackGroundSerial(ser)
bg_ser.start()
success = 0
fail = 0
for i in range(1, 5):
# request control variables 4 times. This would overrun buffer if it was not read in a background thread
# the json decode will then fail, because the message is clipped
bg_ser.write('v')
time.sleep(2)
if len(allProcesses.update()) > 1:
printStdErr(
"Asking the other processes to quit nicely did not work. Killing them with force!"
)
# redirect output of stderr and stdout to files in log directory
if o in ('-l', '--log'):
logToFiles = True
# only start brewpi when the dontrunfile is not found
if o in ('-d', '--dontrunfile'):
checkDontRunFile = True
if o in ('--checkstartuponly'):
checkStartupOnly = True
if not configFile:
configFile = util.addSlash(sys.path[0]) + 'settings/config.cfg'
config = util.readCfgWithDefaults(configFile)
dontRunFilePath = os.path.join(config['wwwPath'], 'do_not_run_brewpi')
# check dont run file when it exists and exit it it does
if checkDontRunFile:
if os.path.exists(dontRunFilePath):
# do not print anything, this will flood the logs
exit(0)
# check for other running instances of BrewPi that will cause conflicts with this instance
allProcesses = BrewPiProcess.BrewPiProcesses()
allProcesses.update()
myProcess = allProcesses.me()
if allProcesses.findConflicts(myProcess):
if len(allProcesses.update()) > 1: # if I am not the only one running
allProcesses.quitAll()
time.sleep(2)
if len(allProcesses.update()) > 1:
print "Asking the other processes to quit nicely did not work. Killing them with force!"
# redirect output of stderr and stdout to files in log directory
if o in ('-l', '--log'):
logToFiles = True
# only start brewpi when the dontrunfile is not found
if o in ('-d', '--dontrunfile'):
checkDontRunFile = True
if o in ('--checkstartuponly'):
checkStartupOnly = True
if not configFile:
configFile = util.addSlash(sys.path[0]) + 'settings/config.cfg'
config = util.readCfgWithDefaults(configFile)
dontRunFilePath = config['wwwPath'] + 'do_not_run_brewpi'
# check dont run file when it exists and exit it it does
if checkDontRunFile:
if os.path.exists(dontRunFilePath):
# do not print anything, this will flood the logs
exit(0)
# check for other running instances of BrewPi that will cause conflicts with this instance
allProcesses = BrewPiProcess.BrewPiProcesses()
allProcesses.update()
myProcess = allProcesses.me()
if allProcesses.findConflicts(myProcess):
# request settings from Arduino, processed later when reply is received
ser.write("s") # request control settings cs
ser.write("c") # request control constants cc
# answer from Arduino is received asynchronously later.
# create a listening socket to communicate with PHP
is_windows = sys.platform.startswith("win")
useInetSocket = bool(config.get("useInetSocket", is_windows))
if useInetSocket:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
port = config.get("socketPort", 6332)
s.bind((config.get("socketHost", "localhost"), int(port)))
logMessage("Bound to TCP socket on port %d " % port)
else:
socketFile = util.addSlash(config["scriptPath"]) + "BEERSOCKET"
if os.path.exists(socketFile):
# if socket already exists, remove it
os.remove(socketFile)
s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind(socketFile) # Bind BEERSOCKET
# set all permissions for socket
os.chmod(socketFile, 0777)
serialCheckInterval = 0.5
s.setblocking(1) # set socket functions to be blocking
s.listen(10) # Create a backlog queue for up to 10 connections
# blocking socket functions wait 'serialCheckInterval' seconds
s.settimeout(serialCheckInterval)
