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utils.py
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utils.py
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import os, hashlib, json, subprocess, time, shutil
basedir = os.path.abspath(os.path.dirname(__file__))
salt = "salty"
"""
To generate a salt run CL Python and run the following:
>>> import random
>>> ''.join(random.choice('0123456789abcdefghijklmnopqrstuvwxyz') for i in range(32))
Copy and paste this as your salt.
"""
def create_account(user, password):
"""Checks for new account validity. If valid, creates account"""
if os.path.isdir(basedir + '/users/' + user):
return False
else:
#hashing and salting the password
global salt
password = password + salt
hash_object = hashlib.sha256(password)
hex_dig = hash_object.hexdigest()
#creating user directory and storing pasword
os.mkdir(basedir + '/users/' + user)
os.chdir(basedir+ '/users/' + user)
with open ('pwd.txt' , 'w') as f:
f.write(hex_dig + '\n')
os.mkdir('projects')
make_libs()
return True
def make_libs():
"""Makes user libraries"""
os.mkdir('libs')
os.chdir('libs')
os.mkdir('mc')
os.mkdir('gcards')
os.mkdir('results')
def account_exists(user):
"""Checks if user account exists"""
if os.path.isdir(basedir + '/users/' + user):
return True
else:
return False
def check_password(password):
"""Returns a hashed version of password for log in check"""
global salt
password = password + salt
hash_object = hashlib.sha256(password)
hex_dig = hash_object.hexdigest()
return hex_dig
def get_password(user):
"""Gets hashed user password from pwd file"""
os.chdir(basedir + '/users/' + user)
with open('pwd.txt', 'r') as f:
password = f.readline().strip()
return password
def get_user_projects(user):
"""Gets user projects and abstract to display on homepage"""
projects = os.listdir(basedir + '/users/' + user +'/projects')
dlst = []
for p in reversed(projects):
abstract = get_experiment_data(user, p, 'abstract')
if abstract is "Empty Project":
abstract = "Empty Project"
elif abstract is "None specified":
abtract = "None specified"
else:
abstract = str(abstract)[:40]
d = {"title" : p, "abstract" : abstract}
dlst.append(d)
return dlst
def get_experiment_list():
"""Gets the experiment list for new experiment template"""
possible_experiments = []
exp_dir = basedir + '/components/expjson'
for exp in os.listdir(exp_dir):
if exp.endswith('.json'):
possible_experiments.append(exp[:-5])
return possible_experiments
def create_project_dir(user, experiment):
"""Creates a directory for an experiment"""
os.chdir(basedir + '/users/' + user +'/projects/')
os.mkdir(experiment)
def create_experiment_data(user, experiment):
"""Creates the data file for specific experiment"""
os.chdir(basedir + '/users/' + user +'/projects/' + experiment)
create = 'created: ' + time.strftime('%d/%m/%Y') + '\n'
gcard = 'gcard: ' + basedir + '/users/' + user + 'projects/' + experiment + '/' + experiment + '.gcard\n'
results = 'results: ' + basedir + '/users/' + user + 'projects/' + experiment + '/' + experiment + '.ev\n'
with open(experiment + '_data.txt', 'w+') as f:
f.write(str(create))
f.write(str(gcard))
f.write(str(results))
def rename_project_dir(user, experiment, title):
os.chdir(basedir + '/users/' + user + '/projects')
count = 1
while True:
if os.path.exists(title):
title = title + str(count)
count = int(count) + 1
else:
break
os.rename(experiment, title)
os.chdir(title)
os.rename(experiment + '_data.txt', title + '_data.txt')
oldgcard = 'gcard: ' + basedir + '/users/' + user + 'projects/' + experiment + '/' + experiment + '.gcard\n'
oldresults = 'results: ' + basedir + '/users/' + user + 'projects/' + experiment + '/' + experiment + '.ev\n'
gcard = 'gcard: ' + basedir + '/users/' + user + 'projects/' + title + '/' + title + '.gcard\n'
results = 'results: ' + basedir + '/users/' + user + 'projects/' + title + '/' + title + '.ev\n'
f = open(title + '_data.txt', 'r')
lines = f.readlines()
f.close
f = open(title + '_data.txt' ,'w')
f.write(str(gcard))
f.write(str(results))
for line in lines:
if line == oldgcard:
pass
elif line == oldresults:
pass
else:
f.write(line)
f.close()
return title
def clone_project(user, experiment):
"""Clone project, same as edit, but keeps original project files"""
os.chdir(basedir + '/users/' + user + '/projects')
count = 1
clone_title = experiment + '_clone' + str(count)
while True:
if os.path.exists(clone_title):
clone_title = clone_title + str(count)
count = int(count) + 1
else:
break
shutil.copytree(experiment, clone_title)
return clone_title
def write_experiment_data(user, experiment, part, content):
"""Writes to data file for specific experiment"""
os.chdir(basedir + '/users/' + user +'/projects/' + experiment)
l = str(part) + ': ' + str(content)
l = str(l) + '\n'
f = open(experiment + '_data.txt', 'r')
lines = f.readlines()
f.close
f = open(experiment + '_data.txt' ,'w')
for line in lines:
if line.startswith(part):
pass
else:
f.write(line)
f.write(str(l))
f.close()
def get_experiment_data(user, experiment, part):
"""Gets part of data file for specific experiment"""
os.chdir(basedir + '/users/' + user +'/projects/' + experiment)
if not(os.path.exists(experiment + '_data.txt')):
return "Empty Project"
else:
with open(experiment + '_data.txt' , 'r') as f:
lines = [x.strip('\n') for x in f.readlines()]
for l in lines:
if l.startswith(str(part)):
index = len(part) + 2
return l[index:]
return "None specified" #Nothing code
def trim_ec(e):
"""Gets the user's experiment choice in usable form"""
delchars = ''.join(c for c in map(chr, range(256)) if not c.isalnum())
e = str(e)
e = e.translate(None, delchars)
return e
def get_ec_info(e, part):
"""Gets the experiment desctiption for user ec"""
with open(basedir + '/components/expjson/' + e + '.json') as data_file:
stock_json = json.load(data_file)
return (stock_json[part])
def trim_ao(a):
"""Gets the user's advanced options selections in uable form"""
chars = ['[', ']', '"' ,',']
for ch in chars:
a = a.replace(ch,"")
print a
return a
def gen_gcard(user, experiment):
"""Generates the gcard for new experiment"""
os.chdir(basedir + '/users/' + user +'/projects/' + experiment)
user_gcard = experiment + '.gcard'
user_out = experiment + '.ev'
ec = None
ao_list = None
gl = None
with open(experiment + '_data.txt','r') as f:
lines = [x.strip('\n') for x in f.readlines()]
for l in lines:
if l.startswith('ec'):
ec = l[4:]
if l.startswith('ao'):
a = l[4:]
ao_list = a.split()
if l.startswith('gl') :
gl = l[4:]
with open(basedir + '/components/expjson/' + ec + '.json') as data_file:
stock_json = json.load(data_file)
relevant_detectors = stock_json['detectors']
if not(ao_list is None): #writing actual gcard, sees if ao used or not
fo = open(user_gcard, "wb")
fo.write("<gcard>" + '\n')
for d in relevant_detectors:
if d["name"] in ao_list:
fo.write(d["tag"] + '\n')
else:
pass
fo.write("<option name ='INPUT_GEN_FILE' value='lund,"+ gl +"'/>" + '\n')
fo.write("<option name='OUTPUT' value='evio," + user_out + "'/>" +'\n')
fo.write("</gcard>" + '\n')
fo.close()
else:
fo = open(user_gcard, "wb")
fo.write("<gcard>" + '\n')
for d in relevant_detectors:
print(d)
fo.write(d["tag"] + '\n')
fo.write("<option name ='INPUT_GEN_FILE' value='lund,"+ gl +"'/>" + '\n')
fo.write("<option name='OUTPUT' value='evio," + user_out + "'/>" +'\n')
fo.write("</gcard>" + '\n')
fo.close()
def run_gemc(user,experiment):
"""runs gemc"""
import signal
os.chdir(basedir + '/users/' + user + '/projects/' + experiment) #change to correct dir
user_gcard = experiment + '.gcard'
#copy over gcard to libraries
gcard_dir = basedir + '/users/' + user + '/libs/gcards/'
shutil.copy(user_gcard, gcard_dir)
with open(experiment + '_out.txt', 'w+') as out: #running process
p = subprocess.Popen(args=['/bin/csh', '-c', "gemc " + user_gcard + " -USE_GUI=0"], stdout=out)
child_pid = p.pid
while 1:
where = out.tell()
line = out.readline()
if not line:
time.sleep(1)
out.seek(where)
else:
if "Total gemc time:" in line:
print line
#kill gemc and close experiment_out.txt
os.kill(child_pid, signal.SIGTERM)
out.close()
#copy over results to libraries
res_dir = basedir + '/users/' + user + '/libs/results/'
shutil.copy(experiment + '_out.txt', res_dir)
#return True for success
return True
elif "Abort" in line:
print line
#kill gemc and close experimemt_out.txt
os.kill(child_pid, signal.SIGTERM)
out.close()
#return False for failure:
return False
else:
pass