#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import os
import sys
import http.cookies

from jinja2 import Environment, FileSystemLoader

import modules.db.sql as sql
import modules.common.common as common
import modules.config.config as config_mod
import modules.roxy_wi_tools as roxy_wi_tools
import modules.roxywi.common as roxywi_common
import modules.roxywi.auth as roxywi_auth

time_zone = sql.get_setting('time_zone')
get_date = roxy_wi_tools.GetDate(time_zone)
get_config_var = roxy_wi_tools.GetConfigVar()
env = Environment(loader=FileSystemLoader('templates/'), autoescape=True)
template = env.get_template('add.html')
form = common.form
serv = common.is_ip_or_dns(form.getvalue('serv'))

print('Content-type: text/html\n')

user_params = roxywi_common.get_users_params(haproxy=1)

try:
	roxywi_auth.check_login(user_params['user_uuid'], user_params['token'], service=1)
except Exception:
	print('error: your session is expired')
	sys.exit()

roxywi_auth.page_for_admin(level=3)

if all(v is None for v in [
	form.getvalue('mode'), form.getvalue('new_userlist'),
	form.getvalue('peers-name'), form.getvalue('generateconfig')
]):
	try:
		cookie = http.cookies.SimpleCookie(os.environ.get("HTTP_COOKIE"))
		group = cookie.get('group')
		user_group = group.value
	except Exception as e:
		print(str(e))

	lib_path = get_config_var.get_config_var('main', 'lib_path')
	dir = lib_path + "/" + sql.get_setting('lists_path')
	white_dir = lib_path + "/" + sql.get_setting('lists_path') + "/" + user_group + "/white"
	black_dir = lib_path + "/" + sql.get_setting('lists_path') + "/" + user_group + "/black"

	if not os.path.exists(dir):
		os.makedirs(dir)
	if not os.path.exists(dir + "/" + user_group):
		os.makedirs(dir + "/" + user_group)
	if not os.path.exists(white_dir):
		os.makedirs(white_dir)
	if not os.path.exists(black_dir):
		os.makedirs(black_dir)

	white_lists = roxywi_common.get_files(folder=white_dir, file_format="lst")
	black_lists = roxywi_common.get_files(folder=black_dir, file_format="lst")

	template = template.render(
		role=user_params['role'], user=user_params['user'], selects=user_params['servers'], add=form.getvalue('add'), conf_add=form.getvalue('conf'),
		group=user_group, options=sql.select_options(), saved_servers=sql.select_saved_servers(), white_lists=white_lists,
		black_lists=black_lists, user_services=user_params['user_services'], token=user_params['token'], lang=user_params['lang']
	)
	print(template)

elif form.getvalue('mode') is not None:
	haproxy_dir = sql.get_setting('haproxy_dir')
	port = form.getlist('port')
	bind = ""
	ip = ""
	force_close = form.getvalue('force_close')
	balance = ""
	mode = f"    mode {form.getvalue('mode')}\n"
	maxconn = ""
	options_split = ""
	ssl = ""
	ssl_check = ""
	backend = ""
	acl = ""
	servers_split = ""
	new_listener = form.getvalue('listener')
	new_frontend = form.getvalue('frontend')
	new_backend = form.getvalue('new_backend')

	if form.getvalue('balance') is not None:
		balance = "    balance " + form.getvalue('balance') + "\n"

	if form.getvalue('health_check') is not None:
		health_check = form.getvalue('health_check')
		if health_check == 'option httpchk' and form.getvalue('checks_http_domain') is not None:
			health_check = health_check + ' GET ' + form.getvalue('checks_http_path') + ' "HTTP/1.0\\r\\nHost: ' + form.getvalue('checks_http_domain') + '"'
		balance += f"    {health_check}\n"

	if form.getvalue('ip') is not None:
		ip = form.getlist('ip')

	if new_listener is not None:
		name = f"listen {new_listener}"
		end_name = new_listener
	elif new_frontend is not None:
		name = f"frontend {new_frontend}"
		end_name = new_frontend
	elif new_backend is not None:
		name = f"backend {new_backend}"
		end_name = new_backend
	else:
		print('error: The name cannot be empty')
		sys.exit()

	if form.getvalue('backends') is not None:
		backend = f"    default_backend { form.getvalue('backends')}\n"

	if form.getvalue('maxconn'):
		maxconn = f"    maxconn {form.getvalue('maxconn')}\n"

	if form.getvalue('ssl') == "https" and form.getvalue('mode') != "tcp":
		cert_path = sql.get_setting('cert_path')
		if form.getvalue('cert') is not None:
			ssl = f"ssl crt {cert_path}{form.getvalue('cert')}"
		if form.getvalue('ssl-dis-check') is None:
			if form.getvalue('ssl-check') == "ssl-check":
				ssl_check = " ssl verify none"
			else:
				ssl_check = " ssl verify"

	if ip or port:
		if type(port) is list:
			i = 0
			for p in port:
				if ip[i] == 'IsEmptY':
					if ip[i] == 'IsEmptY' and port[i] == 'IsEmptY':
						i += 1
						continue
					else:
						port_value = port[i]
					bind += f"    bind *:{port_value} {ssl}\n"
				else:
					if port[i] == 'IsEmptY':
						print('error: IP cannot be bind without a port')
						sys.exit()
					else:
						port_value = port[i]
					bind += f"    bind {ip[i]}:{port_value} {ssl}\n"
				i += 1

	if form.getvalue('default-check') == "1":
		if form.getvalue('check-servers') == "1":
			check = f" check inter {form.getvalue('inter')} rise {form.getvalue('rise')} fall {form.getvalue('fall')}{ssl_check}"
		else:
			check = ""
	else:
		if form.getvalue('check-servers') != "1":
			check = ""
		else:
			check = f" check{ssl_check}"

	if form.getvalue('option') is not None:
		options = form.getvalue('option')
		i = options.split("\n")
		for j in i:
			options_split += f"    {j}\n"

	if force_close == "1":
		options_split += "    option http-server-close\n"
	elif force_close == "2":
		options_split += "    option forceclose\n"
	elif force_close == "3":
		options_split += "    option http-pretend-keepalive\n"

	if form.getvalue('whitelist') is not None:
		options_split += "    tcp-request connection accept if { src -f " + haproxy_dir + "/white/" + form.getvalue(
			'whitelist') + " }\n"

	if form.getvalue('blacklist') is not None:
		options_split += "    tcp-request connection reject if { src -f " + haproxy_dir + "/black/" + form.getvalue(
			'blacklist') + " }\n"

	if form.getvalue('cookie'):
		cookie = f"    cookie {form.getvalue('cookie_name')}"
		if form.getvalue('cookie_domain'):
			cookie += f" domain {form.getvalue('cookie_domain')}"
		if form.getvalue('rewrite'):
			rewrite = form.getvalue('rewrite')
		else:
			rewrite = ""
		if form.getvalue('prefix'):
			prefix = form.getvalue('prefix')
		else:
			prefix = ""
		if form.getvalue('nocache'):
			nocache = form.getvalue('nocache')
		else:
			nocache = ""
		if form.getvalue('postonly'):
			postonly = form.getvalue('postonly')
		else:
			postonly = ""
		if form.getvalue('dynamic'):
			dynamic = form.getvalue('dynamic')
		else:
			dynamic = ""
		cookie += f" {rewrite} {prefix} {nocache} {postonly} {dynamic}\n"
		options_split += cookie
		if form.getvalue('dynamic'):
			options_split += f"    dynamic-cookie-key {form.getvalue('dynamic-cookie-key')}\n"

	if form.getvalue('acl_if'):
		acl_if = form.getlist('acl_if')
		acl_value = form.getlist('acl_value')
		acl_then = form.getlist('acl_then')
		acl_then_values = form.getlist('acl_then_value')
		i = 0

		for a in acl_if:

			acl_then_value = '' if acl_then_values[i] == 'IsEmptY' else acl_then_values[i]

			try:
				if a == '1':
					acl_if_word = 'hdr_beg(host) -i '
					if form.getvalue('ssl') == "https" and form.getvalue('mode') != "tcp":
						acl_if_word = 'ssl_fc_sni -i '
					if form.getvalue('mode') == "tcp":
						acl_if_word = 'req.ssl_sni -i '
				elif a == '2':
					acl_if_word = 'hdr_end(host) -i '
					if form.getvalue('ssl') == "https" and form.getvalue('mode') != "tcp":
						acl_if_word = 'ssl_fc_sni -i '
					if form.getvalue('mode') == "tcp":
						acl_if_word = 'req.ssl_sni -i '
				elif a == '3':
					acl_if_word = 'path_beg -i '
				elif a == '4':
					acl_if_word = 'path_end -i '
				elif a == '6':
					acl_if_word = 'src ip '
				else:
					acl_if_word = ''

				if acl_then[i] == '5':
					acl += '    use_backend '
				elif acl_then[i] == '2':
					acl += '    http-request redirect location '
				elif acl_then[i] == '3':
					acl += '    http-request allow'
					acl_then_value = ''
				elif acl_then[i] == '4':
					acl += '    http-request deny'
					acl_then_value = ''
				elif acl_then[i] == '6':
					acl += '    return '
				elif acl_then[i] == '7':
					acl += '    set-header '

				acl += acl_then_value + ' if { ' + acl_if_word + acl_value[i] + ' } \n'
			except Exception:
				acl = ''

			i += 1

	if form.getvalue('circuit_breaking') == "1":
		observe = 'observe ' + form.getvalue('circuit_breaking_observe')
		error_limit = ' error-limit ' + form.getvalue('circuit_breaking_error_limit')
		circuit_breaking_on_error = ' on-error ' + form.getvalue('circuit_breaking_on_error')
		default_server = '    default-server ' + observe + error_limit + circuit_breaking_on_error + '\n'
		servers_split += default_server

	if form.getvalue('servers') is not None:
		servers = form.getlist('servers')
		server_port = form.getlist('server_port')
		send_proxy = form.getlist('send_proxy')
		backup = form.getlist('backup')
		server_maxconn = form.getlist('server_maxconn')
		port_check = form.getvalue('port_check')
		i = 0
		for server in servers:
			if form.getvalue('template') is None:
				try:
					if send_proxy[i] == '1':
						send_proxy_param = 'send-proxy'
					else:
						send_proxy_param = ''
				except Exception:
					send_proxy_param = ''

				try:
					if backup[i] == '1':
						backup_param = 'backup'
					else:
						backup_param = ''
				except Exception:
					backup_param = ''

				try:
					maxconn_val = server_maxconn[i]
				except Exception:
					maxconn_val = '200'

				try:
					port_check_val = port_check[i]
				except Exception:
					port_check_val = port

				servers_split += "    server {0} {0}:{1}{2} port {6} maxconn {5} {3} {4} \n".format(
					server, server_port[i], check, send_proxy_param, backup_param, maxconn_val, port_check_val
				)
			else:
				servers_split += "    server-template {0} {1} {2}:{3} {4} \n".format(
					form.getvalue('prefix'), form.getvalue('template-number'), server, server_port[i], check
				)
			i += 1

	compression = form.getvalue("compression")
	cache = form.getvalue("cache")
	compression_s = ""
	cache_s = ""
	cache_set = ""
	filter_com = ""
	if compression == "1" or cache == "2":
		filter_com = "    filter compression\n"
		if cache == "2":
			cache_s = f"    http-request cache-use {end_name}\n    http-response cache-store {end_name}\n"
			cache_set = f"cache {end_name}\n    total-max-size 4\n    max-age 240\n"
		if compression == "1":
			compression_s = "    compression algo gzip\n    compression type text/html text/plain text/css\n"

	waf = ""
	if form.getvalue('waf') is not None:
		waf = f"    filter spoe engine modsecurity config {haproxy_dir}/waf.conf\n"
		waf += "    http-request deny if { var(txn.modsec.code) -m int gt 0 }\n"

	config_add = f"\n{name}\n{bind}{mode}{maxconn}{balance}{options_split}{cache_s}{filter_com}{compression_s}" \
				 f"{waf}{acl}{backend}{servers_split}\n{cache_set}\n"

if form.getvalue('new_userlist') is not None:
	name = f"userlist {form.getvalue('new_userlist')}\n"

	new_userlist_groups = ""
	if form.getvalue('userlist-group') is not None:
		groups = form.getlist('userlist-group')
		for group in groups:
			new_userlist_groups += f"    group {group}\n"

	new_users_list = ""
	if form.getvalue('userlist-user') is not None:
		users = form.getlist('userlist-user')
		passwords = form.getlist('userlist-password')
		userlist_user_group = form.getlist('userlist-user-group')
		i = 0

		for user in users:
			try:
				group = f' groups {userlist_user_group[i]}'
			except Exception:
				group = ''
			new_users_list += f"    user {user} insecure-password { passwords[i]} {group}\n"
			i += 1

	config_add = "\n" + name + new_userlist_groups + new_users_list

if form.getvalue('peers-name') is not None:
	name = "peers " + form.getvalue('peers-name') + "\n"
	servers_split = ''

	if form.getvalue('servers') is not None:
		servers = form.getlist('servers')
		server_port = form.getlist('server_port')
		servers_name = form.getlist('servers_name')
		i = 0
		for server in servers:
			servers_split += "    peer {0} {1}:{2} \n".format(servers_name[i], server, server_port[i])

			i += 1

		config_add = "\n" + name + servers_split

if form.getvalue('generateconfig') is None and serv is not None:
	slave_output = ''
	try:
		server_name = sql.get_hostname_by_server_ip(serv)
	except Exception:
		server_name = serv

	try:
		roxywi_common.check_is_server_in_group(serv)
		if config_add:
			hap_configs_dir = get_config_var.get_config_var('configs', 'haproxy_save_configs_dir')
			cfg = hap_configs_dir + serv + "-" + get_date.return_date('config') + ".cfg"

			config_mod.get_config(serv, cfg)
			try:
				with open(cfg, "a") as conf:
					conf.write(config_add)
			except IOError as e:
				print(f"error: Can't read import config file {e}")

			output = config_mod.master_slave_upload_and_restart(serv, cfg, just_save="save")

			if output:
				print(output)
			else:
				print(name)

			try:
				roxywi_common.logging(serv, f"add.py add new {name}")
			except Exception:
				pass
	except Exception:
		pass
else:
	print(config_add)