96 lines
3.5 KiB
Python
Executable file
96 lines
3.5 KiB
Python
Executable file
#!/usr/bin/env python3
|
|
import cgi, cgitb
|
|
import re
|
|
import sys, os, subprocess
|
|
from subprocess import check_output, Popen, PIPE, CalledProcessError
|
|
from os.path import expanduser
|
|
|
|
cgitb.enable()
|
|
home_dir = expanduser("~")
|
|
os.environ['HOME'] = home_dir
|
|
|
|
def check_form(formvars, form):
|
|
for varname in formvars:
|
|
if varname not in form.keys():
|
|
return False
|
|
else:
|
|
if type(form[varname].value) is not type(''):
|
|
return None
|
|
return True
|
|
|
|
def read_template_file(filename, **vars):
|
|
with open('tpl/' + filename, mode='r', encoding='utf-8') as f:
|
|
template = f.read()
|
|
for key in vars:
|
|
template = template.replace('{$' + key + '}', vars[key])
|
|
return template
|
|
|
|
def check_oldpw(accountname, oldpass):
|
|
try:
|
|
dumpvuserargs = ['dumpvuser', accountname]
|
|
userdump = check_output(dumpvuserargs).strip().decode('utf-8')
|
|
m = re.search('Encrypted-Password: (\$([^\$]+)\$([^\$]+)\$([^\$\n]+))', userdump)
|
|
if None == m:
|
|
return False
|
|
oldhash = m.group(1)
|
|
hashtype = m.group(2)
|
|
salt = m.group(3)
|
|
except CalledProcessError:
|
|
return False
|
|
|
|
opensslargs = ['openssl', 'passwd', '-' + hashtype, '-salt', salt, oldpass]
|
|
newhash = check_output(opensslargs).strip().decode('utf-8');
|
|
|
|
if newhash == oldhash:
|
|
return True
|
|
return False
|
|
|
|
def generate_headers():
|
|
return "Content-Type: text/html; charset=utf-8\n"
|
|
|
|
def main():
|
|
main_content = ''
|
|
|
|
form = cgi.FieldStorage()
|
|
if 'submit' in form.keys():
|
|
formvars = ['accountname', 'oldpass', 'newpass', 'newpass2']
|
|
form_ok = check_form(formvars, form)
|
|
if form_ok == True:
|
|
accountname = form['accountname'].value
|
|
accountname = accountname.split("@")[0]
|
|
oldpass = form['oldpass'].value
|
|
newpass = form['newpass'].value
|
|
newpass2 = form['newpass2'].value
|
|
if newpass == newpass2:
|
|
if check_oldpw(accountname, oldpass):
|
|
vpasswdargs = ['vpasswd', accountname]
|
|
p = Popen(vpasswdargs, stdin=PIPE, stdout=PIPE, stderr=subprocess.STDOUT)
|
|
p.stdin.write(newpass.encode('utf-8') + b'\n')
|
|
p.stdin.write(newpass2.encode('utf-8') + b'\n')
|
|
p.stdin.close()
|
|
if p.wait() == 0:
|
|
# We did it
|
|
main_content = read_template_file('success.tpl')
|
|
else:
|
|
main_content = read_template_file('fail.tpl', message=cgi.escape(p.stdout.read()))
|
|
else:
|
|
main_content = read_template_file('fail.tpl', message='User not found or wrong password entered.')
|
|
else:
|
|
main_content = read_template_file('fail.tpl', message='Passwords do not match.')
|
|
elif form_ok == False:
|
|
main_content = read_template_file('fail.tpl', message='All fields are required.')
|
|
else:
|
|
main_content = read_template_file('fail.tpl', message='Invalid data type supplied.')
|
|
else:
|
|
# Submit button not pressed, show form
|
|
formaction = cgi.escape("https://" + os.environ["HTTP_HOST"] + os.environ["REQUEST_URI"])
|
|
form = read_template_file('form.tpl', formaction=formaction)
|
|
main_content = form
|
|
|
|
response = generate_headers() + "\n"
|
|
response += read_template_file('main.tpl', main_content=main_content)
|
|
sys.stdout.buffer.write(response.encode('utf-8'))
|
|
|
|
if __name__ == "__main__":
|
|
main()
|
|
|