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server.py
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server.py
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from http.server import HTTPServer, BaseHTTPRequestHandler
from io import BytesIO
import json
import locale
from datetime import datetime
locale.setlocale(locale.LC_ALL, 'de')
def parse_post_data(body):
params = {}
# action1=123&action2=443&action3=887
# ['action1=123', 'action2=443', 'action3=887']
# [action1, 123] [action2, 443] [action3, 887]
# {action1: 123, action2: 443, action3: 887}
for value in body.decode('utf-8').split('&'):
value = value.split('=')
if len(value) == 2:
params[value[0]] = value[1]
return params
def get_content(data):
file = open('template.html', 'r')
content = file.read()
content = content.replace('{labels}', data['labels'])
content = content.replace('{datasets}', data['datasets'])
content = content.replace('{cases_all}', '{0:n}'.format(data['cases_all']))
content = content.replace('{death_all}', '{0:n}'.format(data['death_all']))
content = content.replace('{cases_new}', '{0:n}'.format(data['cases_new']))
content = content.replace('{death_new}', '{0:n}'.format(data['death_new']))
content = content.replace('{actions1_checked}', data['actions']['actions1'])
content = content.replace('{actions2_checked}', data['actions']['actions2'])
content = content.replace('{actions3_checked}', data['actions']['actions3'])
content = content.replace('{actions4_checked}', data['actions']['actions4'])
content = content.replace('{actions5_checked}', data['actions']['actions5'])
content = content.replace('{options1_selected}', data['options']['options1'])
content = content.replace('{options2_selected}', data['options']['options2'])
content = content.replace('{options3_selected}', data['options']['options3'])
content = content.replace('{options4_selected}', data['options']['options4'])
content = content.replace('{options5_selected}', data['options']['options5'])
content = content.replace('{diseases}', data['disease'])
content = content.replace('{date_from}', data['date']['from'])
content = content.replace('{date_to}', data['date']['to'])
return content.encode('utf-8')
def calculate_data(params={}):
print(params)
labels = []
datasets = []
data = {'s': [], 'i': [], 'r': [], 'd': []}
actions1_checked = ''
actions2_checked = ''
actions3_checked = ''
actions4_checked = ''
actions5_checked = ''
options1_selected = ''
options2_selected = ''
options3_selected = ''
options4_selected = ''
options5_selected = ''
diseases = 'COVID-19'
date_from = ''
date_to = ''
N = 83200000 # population
B = 2.2
G = 0.978 # the rate of recovery
E = 0.0022 # the rate of mortality
I0 = 10
R0 = 0
D0 = 0
S0 = N - I0 - R0 - D0
if 'disease' in params:
diseases = params.get('disease')
print(diseases)
if diseases == 'COVID-19':
B = 2.2
G = 0.978 # the rate of recovery
E = 0.0022 # the rate of mortality
I0 = 3680000
R0 = 3480000
D0 = 88413
S0 = N - I0 - R0 - D0
options1_selected = 'selected'
if diseases == 'Masern':
B = 12.0
G = 0.978 # the rate of recovery
E = 0.003 # the rate of mortality
I0 = 10
R0 = 0
D0 = 0
S0 = N - I0 - R0 - D0
options2_selected = 'selected'
if diseases == 'Ebolavirus':
B = 2.0
G = 0.978 # the rate of recovery
E = 0.005 # the rate of mortality
I0 = 10
R0 = 0
D0 = 0
S0 = N - I0 - R0 - D0
options3_selected = 'selected'
if diseases == 'Roteln':
B = 7.0
G = 0.978 # the rate of recovery
E = 0.0015 # the rate of mortality
I0 = 10
R0 = 0
D0 = 0
S0 = N - I0 - R0 - D0
options4_selected = 'selected'
if diseases == 'Diphtherie':
B = 4.5
G = 0.978 # the rate of recovery
E = 0.009 # the rate of mortality
I0 = 10
R0 = 0
D0 = 0
S0 = N - I0 - R0 - D0
options5_selected = 'selected'
if 'actions1' in params:
B = B * float(params['actions1'])
actions1_checked = 'checked'
if 'actions2' in params:
B = B * float(params['actions2'])
actions2_checked = 'checked'
if 'actions3' in params:
B = B * float(params['actions3'])
actions3_checked = 'checked'
if 'actions4' in params:
B = B * float(params['actions4'])
actions4_checked = 'checked'
if 'actions5' in params:
B = B * float(params['actions5'])
actions5_checked = 'checked'
if 'date_from' in params:
date_from = params['date_from']
if 'date_to' in params:
date_to = params['date_to']
# calculate days
days = 30
if len(date_from) > 0 and len(date_to) > 0:
date_from_obj = datetime.strptime(date_from, '%Y-%m-%d')
date_to_obj = datetime.strptime(date_to, '%Y-%m-%d')
days = (date_to_obj - date_from_obj).days
if days < 0:
days = 0
# set 0 day
labels.append(0)
data['s'].append(round(S0))
data['i'].append(round(I0))
data['r'].append(round(R0))
data['d'].append(round(D0))
S = S0
I = I0
R = R0
D = D0
for day in range(1, days + 1):
labels.append(day)
# deltas
dS = -(B * I * S) / N
dI = ((B * I * S) / N) - (G * I) - (E * I)
dR = G * I
dD = E * I
S += dS
I += dI
R += dR
D += dD
data['s'].append(round(S))
data['i'].append(round(I))
data['r'].append(round(R))
data['d'].append(round(D))
if I >= N - D:
I = N - D
break
cases_all = round(I + D + R)
death_all = round(D)
cases_new = round(cases_all - I0)
death_new = round(death_all - D0)
# datasets
# Susceptible
datasets.append({'label': 'Infizierbar', 'backgroundColor': 'blue', 'borderColor': 'blue', 'fill': False, 'data': data['s']})
# Infectious
datasets.append({'label': 'Infiziert', 'backgroundColor': 'orange', 'borderColor': 'orange', 'fill': False, 'data': data['i']})
# Recovered
datasets.append({'label': 'Genesen', 'backgroundColor': 'green', 'borderColor': 'green', 'fill': False, 'data': data['r']})
# Deceased
datasets.append({'label': 'Verstorben', 'backgroundColor': 'red', 'borderColor': 'red', 'fill': False, 'data': data['d']})
return {
'labels': json.dumps(labels),
'datasets': json.dumps(datasets),
'cases_all': cases_all,
'death_all': death_all,
'cases_new': cases_new,
'death_new': death_new,
'actions': {
'actions1': actions1_checked,
'actions2': actions2_checked,
'actions3': actions3_checked,
'actions4': actions4_checked,
'actions5': actions5_checked
},
'options': {
'options1': options1_selected,
'options2': options2_selected,
'options3': options3_selected,
'options4': options4_selected,
'options5': options5_selected
},
'disease': diseases,
'date': {
'from': date_from,
'to': date_to
}
}
class SimpleHTTPRequestHandler(BaseHTTPRequestHandler):
def do_GET(self):
self.send_response(200)
self.end_headers()
response = BytesIO()
response.write(get_content(calculate_data()))
self.wfile.write(response.getvalue())
def do_POST(self):
body = self.rfile.read(int(self.headers['Content-Length']))
params = parse_post_data(body)
print(params)
self.send_response(200)
self.end_headers()
response = BytesIO()
response.write(get_content(calculate_data(params)))
self.wfile.write(response.getvalue())
httpd = HTTPServer(('0.0.0.0', int(os.environ.get('PORT', '8000'))), SimpleHTTPRequestHandler)
print('Serving HTTP on 0.0.0.0 port 8000 ...')
httpd.serve_forever()