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haproxy-wi/app/funct.py

400 lines
12 KiB

# -*- coding: utf-8 -*-"
import cgi
import os, sys
import paramiko
import http.cookies
from paramiko import SSHClient
from datetime import datetime
from pytz import timezone
from configparser import ConfigParser, ExtendedInterpolation
path_config = "haproxy-webintarface.config"
config = ConfigParser(interpolation=ExtendedInterpolation())
config.read(path_config)
form = cgi.FieldStorage()
serv = form.getvalue('serv')
fullpath = config.get('main', 'fullpath')
time_zone = config.get('main', 'time_zone')
proxy = config.get('main', 'proxy')
ssh_keys = config.get('ssh', 'ssh_keys')
ssh_user_name = config.get('ssh', 'ssh_user_name')
haproxy_configs_server = config.get('configs', 'haproxy_configs_server')
hap_configs_dir = config.get('configs', 'haproxy_save_configs_dir')
haproxy_config_path = config.get('haproxy', 'haproxy_config_path')
tmp_config_path = config.get('haproxy', 'tmp_config_path')
restart_command = config.get('haproxy', 'restart_command')
def check_config():
for section in [ 'main', 'configs', 'ssh', 'logs', 'haproxy' ]:
if not config.has_section(section):
print('<center><div class="alert alert-danger">Check config file, no %s section</div>' % section)
def get_data(type):
now_utc = datetime.now(timezone(time_zone))
if type == 'config':
fmt = "%Y-%m-%d.%H:%M:%S"
if type == 'logs':
fmt = '%Y%m%d'
return now_utc.strftime(fmt)
def logging(serv, action):
import sql
dateFormat = "%b %d %H:%M:%S"
now_utc = datetime.now(timezone(time_zone))
IP = cgi.escape(os.environ["REMOTE_ADDR"])
cookie = http.cookies.SimpleCookie(os.environ.get("HTTP_COOKIE"))
user_uuid = cookie.get('uuid')
login = sql.get_user_name_by_uuid(user_uuid.value)
mess = now_utc.strftime(dateFormat) + " from " + IP + " user: " + login + " " + action + " for: " + serv + "\n"
log_path = config.get('main', 'log_path')
try:
log = open(log_path + "/config_edit-"+get_data('logs')+".log", "a")
log.write(mess)
log.close
except IOError:
print('<center><div class="alert alert-danger">Can\'t read write log. Please chech log_path in config</div></center>')
pass
if config.get('telegram', 'enable') == "1": telegram_send_mess(mess)
def telegram_send_mess(mess):
import telegram
token_bot = config.get('telegram', 'token')
channel_name = config.get('telegram', 'channel_name')
if proxy is not None:
pp = telegram.utils.request.Request(proxy_url=proxy)
bot = telegram.Bot(token=token_bot, request=pp)
bot.send_message(chat_id=channel_name, text=mess)
def check_login(**kwargs):
import sql
cookie = http.cookies.SimpleCookie(os.environ.get("HTTP_COOKIE"))
user_uuid = cookie.get('uuid')
ref = os.environ.get("SCRIPT_NAME")
if user_uuid is not None:
if sql.get_user_name_by_uuid(user_uuid.value) is None:
print('<meta http-equiv="refresh" content="0; url=login.py?ref=%s">' % ref)
else:
print('<meta http-equiv="refresh" content="0; url=login.py?ref=%s">' % ref)
def is_admin(**kwargs):
import sql
cookie = http.cookies.SimpleCookie(os.environ.get("HTTP_COOKIE"))
user_id = cookie.get('uuid')
try:
role = sql.get_user_role_by_uuid(user_id.value)
except:
role = 3
pass
level = kwargs.get("level")
if level is None:
level = 1
try:
if role <= level:
return True
else:
return False
except:
return False
pass
def page_for_admin(**kwargs):
give_level = kwargs.get("level")
if give_level is None:
give_level = 1
if not is_admin(level = give_level):
print('<center><h3 style="color: red">How did you get here?! O_o You do not have need permissions</h>')
print('<meta http-equiv="refresh" content="10; url=/">')
import sys
sys.exit()
def get_button(button, **kwargs):
value = kwargs.get("value")
if value is None:
value = ""
print('<button type="submit" value="%s" name="%s" class="btn btn-default">%s</button>' % (value, value, button))
def ssh_connect(serv, **kwargs):
ssh = SSHClient()
ssh.load_system_host_keys()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
try:
if config.get('ssh', 'ssh_keys_enable') == "1":
k = paramiko.RSAKey.from_private_key_file(ssh_keys)
ssh.connect(hostname = serv, username = ssh_user_name, pkey = k )
else:
ssh.connect(hostname = serv, username = ssh_user_name, password = config.get('ssh', 'ssh_pass'))
if kwargs.get('check'):
return True
else:
return ssh
except paramiko.AuthenticationException:
print('<div class="alert alert-danger">Authentication failed, please verify your credentials</div>')
return False
except paramiko.SSHException as sshException:
print('<div class="alert alert-danger">Unable to establish SSH connection: %s </div>' % sshException)
return False
except paramiko.BadHostKeyException as badHostKeyException:
print('<div class="alert alert-danger">Unable to verify server\'s host key: %s </div>' % badHostKeyException)
return False
except Exception as e:
if e.args[1] == "No such file or directory":
print('<div class="alert alert-danger">{}. Check ssh key</div>'.format(e.args[1]))
elif e.args[1] == "Invalid argument":
print('<div class="alert alert-danger">Check the IP of the new server</div>')
else:
print('<div class="alert alert-danger">{}</div>'.format(e.args[1]))
return False
def get_config(serv, cfg, **kwargs):
if kwargs.get("keepalived"):
config_path = "/etc/keepalived/keepalived.conf"
else:
config_path = haproxy_config_path
ssh = ssh_connect(serv)
try:
sftp = ssh.open_sftp()
sftp.get(config_path, cfg)
sftp.close()
ssh.close()
except Exception as e:
print('<center><div class="alert alert-danger">' + str(e) + ' Please check IP, and SSH settings</div>')
sys.exit()
def show_config(cfg):
print('<div style="margin-left: 16%" class="configShow">')
try:
conf = open(cfg, "r")
except IOError:
print('<div class="alert alert-danger">Can\'t read import config file</div>')
i = 0
for line in conf:
i = i + 1
if not line.find("global"):
print('<span class="param">' + line + '</span><div>')
continue
if not line.find("defaults"):
print('</div><span class="param">' + line + '</span><div>')
continue
if not line.find("listen"):
print('</div><span class="param">' + line + '</span><div>')
continue
if not line.find("frontend"):
print('</div><span class="param">' + line + '</span><div>')
continue
if not line.find("backend"):
print('</div><span class="param">' + line + '</span><div>')
continue
if "acl" in line or "option" in line or "server" in line:
if "timeout" not in line and "default-server" not in line and "#use_backend" not in line:
print('<span class="paramInSec"><span class="numRow">')
print(i)
print('</span>' + line + '</span><br />')
continue
if "#" in line:
print('<span class="comment"><span class="numRow">')
print(i)
print(line + '</span></span><br />')
continue
if line.__len__() < 1:
print('</div>')
if line.__len__() > 1:
print('<span class="configLine"><span class="numRow">')
print(i)
print('</span>' + line + '</span><br />')
print('</div></div>')
conf.close
def install_haproxy(serv):
script = "install_haproxy.sh"
os.system("cp scripts/%s ." % script)
if proxy is not None:
proxy_serv = proxy
else:
proxy_serv = ""
commands = [ "chmod +x "+tmp_config_path+script, tmp_config_path+script +" " + proxy_serv]
upload(serv, tmp_config_path, script)
ssh_command(serv, commands)
os.system("rm -f %s" % script)
def upload(serv, path, file, **kwargs):
full_path = path + file
try:
ssh = ssh_connect(serv)
except Exception as e:
print('<div class="alert alert-danger">Connect fail: %s</div>' % e)
try:
sftp = ssh.open_sftp()
file = sftp.put(file, full_path)
sftp.close()
ssh.close()
except Exception as e:
print('<div class="alert alert-danger">Upload fail: %s</div>' % e)
def upload_and_restart(serv, cfg, **kwargs):
tmp_file = tmp_config_path + "/" + get_data('config') + ".cfg"
error = ""
try:
os.system("dos2unix "+cfg)
except OSError:
error = 'Please install dos2unix'
pass
try:
ssh = ssh_connect(serv)
except:
error = 'Connect fail'
sftp = ssh.open_sftp()
sftp.put(cfg, tmp_file)
sftp.close()
if kwargs.get("keepalived") == 1:
if kwargs.get("just_save") == "save":
commands = [ "mv -f " + tmp_file + " /etc/keepalived/keepalived.conf" ]
else:
commands = [ "mv -f " + tmp_file + " /etc/keepalived/keepalived.conf", "systemctl restart keepalived" ]
else:
if kwargs.get("just_save") == "save":
commands = [ "/sbin/haproxy -q -c -f " + tmp_file + "&& mv -f " + tmp_file + " " + haproxy_config_path ]
else:
commands = [ "/sbin/haproxy -q -c -f " + tmp_file + "&& mv -f " + tmp_file + " " + haproxy_config_path + " && " + restart_command ]
try:
if config.get('haproxy', 'firewall_enable') == "1":
commands.extend(open_port_firewalld(cfg))
except:
return 'Please check the config for the presence of the parameter - "firewall_enable". Mast be: "0" or "1". Firewalld configure not working now'
for command in commands:
stdin, stdout, stderr = ssh.exec_command(command)
return stderr.read().decode(encoding='UTF-8')
ssh.close()
def open_port_firewalld(cfg):
try:
conf = open(cfg, "r")
except IOError:
print('<div class="alert alert-danger">Can\'t read export config file</div>')
firewalld_commands = []
for line in conf:
if "bind" in line:
bind = line.split(":")
bind[1] = bind[1].strip(' ')
bind = bind[1].split("ssl")
bind = bind[0].strip(' \t\n\r')
firewalld_commands.append('firewall-cmd --zone=public --add-port=%s/tcp --permanent' % bind)
firewalld_commands.append('firewall-cmd --reload')
return firewalld_commands
def check_haproxy_config(serv):
commands = [ "/sbin/haproxy -q -c -f %s" % haproxy_config_path ]
ssh = ssh_connect(serv)
for command in commands:
stdin , stdout, stderr = ssh.exec_command(command)
if not stderr.read():
return True
else:
return False
ssh.close()
def compare(stdout):
i = 0
minus = 0
plus = 0
total_change = 0
print('</center><div class="out">')
print('<div class="diff">')
for line in stdout:
i = i + 1
if i is 1:
print('<div class="diffHead">' + line + '<br />')
elif i is 2:
print(line + '</div>')
elif line.find("-") == 0 and i is not 1:
print('<div class="lineDiffMinus">' + line + '</div>')
minus = minus + 1
elif line.find("+") == 0 and i is not 2:
print('<div class="lineDiffPlus">' + line + '</div>')
plus = plus + 1
elif line.find("@") == 0:
print('<div class="lineDog">' + line + '</div>')
else:
print('<div class="lineDiff">' + line + '</div>')
total_change = minus + plus
print('<div class="diffHead">Total change: %s, additions: %s & deletions: %s </div>' % (total_change, minus, plus))
print('</div></div>')
def show_log(stdout):
i = 0
for line in stdout:
i = i + 1
if i % 2 == 0:
print('<div class="line3">' + line + '</div>')
else:
print('<div class="line">' + line + '</div>')
def show_ip(stdout):
for line in stdout:
print(line)
def server_status(stdout):
proc_count = ""
i = 0
for line in stdout.read().decode(encoding='UTF-8'):
i = i + 1
if i == 1:
proc_count += line
if line.find("0"):
err = 1
else:
err = 0
if err != 0:
print('<span class="serverUp"> UP</span> running %s processes' % proc_count)
else:
print('<span class="serverDown"> DOWN</span> running %s processes' % proc_count)
def ssh_command(serv, commands, **kwargs):
ssh = ssh_connect(serv)
for command in commands:
try:
stdin, stdout, stderr = ssh.exec_command(command)
except:
continue
if kwargs.get("ip") == "1":
show_ip(stdout)
elif kwargs.get("compare") == "1":
compare(stdout)
elif kwargs.get("show_log") == "1":
show_log(stdout)
elif kwargs.get("server_status") == "1":
server_status(stdout)
else:
print('<div style="margin: -10px;">'+stdout.read().decode(encoding='UTF-8')+'</div>')
print(stderr.read().decode(encoding='UTF-8'))
ssh.close()