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views.py
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from django.shortcuts import render, render_to_response
from django.template import RequestContext, loader
from django.contrib.auth.decorators import login_required
from django.core.paginator import Paginator,EmptyPage,PageNotAnInteger
from django.http import HttpResponse
from django.db.models import Q
from lazy_balancer.views import is_auth
from proxy.models import proxy_config,upstream_config
from settings.models import system_settings
from nginx.views import *
from nginx.ip import *
import json
import uuid
import time
import os
@login_required(login_url="/login/")
def view(request):
filter = request.GET.get('filter',"")
if filter:
p_config = proxy_config.objects.filter(Q(proxy_name__contains=filter)|Q(server_name__contains=filter))
else:
p_config = proxy_config.objects.all()
NUM_PER_PAGE = 8
paginator = Paginator(p_config, NUM_PER_PAGE)
page = request.GET.get('page')
try:
contexts = paginator.page(page)
except PageNotAnInteger:
contexts = paginator.page(1)
except EmptyPage:
contexts = paginator.page(paginator.num_pages)
user = {
'name':request.user,
'date':time.time()
}
return render_to_response('proxy/view.html',{ 'proxy' : contexts, 'filter' : filter, 'user' : user })
pass
@is_auth
def check_http_status(request):
try:
post = json.loads(request.body)
proxy = proxy_config.objects.get(pk=post['pk'])
status = get_proxy_http_status()
context = { "flag":"Success","config_id":proxy.config_id,"status":status}
except Exception, e:
context = { "flag":"Error","context":str(e) }
return HttpResponse(json.dumps(context))
pass
@is_auth
def query_proxy(request):
try:
post = json.loads(request.body)
proxy = proxy_config.objects.get(config_id=post['config_id'])
p = {
'proxy_name':proxy.proxy_name,
'config_id':proxy.config_id,
'listen':proxy.listen,
'server_name':proxy.server_name,
'access_log':proxy.access_log,
'error_log':proxy.error_log,
'protocols':proxy.protocols,
'ssl_cert':proxy.ssl_cert,
'ssl_key':proxy.ssl_key,
'description':proxy.description,
'check_type':proxy.check_type,
'balancer_type':proxy.balancer_type,
}
u = []
for ui in proxy.upstream_list.all():
u.append({
'address':ui.address,
'port':ui.port,
'weight':ui.weight,
'max_fails':ui.max_fails,
'fail_timeout':ui.fail_timeout
})
pass
context = { "flag":"Success","context":{"proxy":p,"upstream":u}}
except Exception, e:
context = { "flag":"Error","context":str(e) }
return HttpResponse(json.dumps(context))
pass
@is_auth
def delete_proxy(request):
try:
post = json.loads(request.body)
proxy = proxy_config.objects.get(pk=post['pk'])
proxy.delete()
reload_config()
context = { "flag":"Success" }
except Exception, e:
context = { "flag":"Error","context":str(e) }
return HttpResponse(json.dumps(context))
pass
@is_auth
def change_status(request):
try:
post = json.loads(request.body)
proxy = proxy_config.objects.get(pk=post['pk'])
proxy.status = bool(int(post['status']))
proxy.save()
reload_config()
context = { "flag":"Success" }
except Exception, e:
context = { "flag":"Error","context":str(e) }
return HttpResponse(json.dumps(context))
pass
@is_auth
def proxy_logs(request):
try:
post = json.loads(request.body)
curr_position = {"access":0,"error":0}
curr_position['access'] = int(post['curr_position']['access'])
curr_position['error'] = int(post['curr_position']['error'])
proxy = proxy_config.objects.get(pk=post['pk'])
log_body = {"access":"","error":""}
with open(proxy.access_log) as file_:
file_.seek(0,2)
if curr_position['access'] != 0:
file_.seek(curr_position['access'])
line = file_.readline()
while line:
log_body['access'] += line
curr_position['access'] = file_.tell()
line = file_.readline()
curr_position['access'] = file_.tell()
with open(proxy.error_log) as file_:
file_.seek(0,2)
if curr_position['error'] != 0:
file_.seek(curr_position['error'])
line = file_.readline()
while line:
log_body['error'] += line
curr_position['error'] = file_.tell()
line = file_.readline()
curr_position['error'] = file_.tell()
context = { "flag":"Success" , "log_body":log_body , "curr_position":curr_position }
except Exception, e:
context = { "flag":"Error","context":str(e) }
return HttpResponse(json.dumps(context))
pass
@is_auth
def save(request):
try:
post = json.loads(request.body)
config_id = post['base_config']['proxy_config_id']
access_log = post['base_config']['proxy_access_log']
error_log = post['base_config']['proxy_error_log']
proxy_name = post['base_config']['proxy_proxy_name']
listen = post['base_config']['proxy_listen']
server_name = post['base_config']['proxy_server_name']
description = post['base_config']['proxy_description']
balancer_type = ""
nic = False
if system_settings.objects.all().count() != 0:
if system_settings.objects.all()[0].internal_nic != "":
nic = True
if nic:
if proxy_name and server_name and listen and len(post['upstream_list']) and not listen=="8000":
create_flag = False
if config_id == "0":
config_id = str(uuid.uuid1())
create_flag = True
config_nginx_path = "/etc/nginx/nginx.conf"
config_path = "/etc/nginx/conf.d/%s.conf" % config_id
if not access_log:
access_log = "/var/log/nginx/access-%s.log" % config_id
if not error_log:
error_log = "/var/log/nginx/error-%s.log" % config_id
if post['base_config'].has_key('proxy_ip_hash'):
balancer_type = "ip_hash"
if post['base_config'].has_key('proxy_http_check'):
check_type = "http"
else:
check_type = "tcp"
proxy = {
'config_id' : config_id,
'proxy_name' : proxy_name,
'status' : False,
'listen' : int(listen),
'server_name' : server_name,
'host' : server_name.split(' ')[0],
'access_log' : access_log,
'error_log' : error_log,
'balancer_type' : balancer_type,
'update_time' : time.time(),
'description' : description,
'protocols' : False,
'check_type' : check_type,
'ssl_cert' : "",
'ssl_cert_path' : "",
'ssl_key' : "",
'ssl_key_path' : "",
}
if post['ssl_config'].has_key('ssl_status'):
cert_path = "/etc/nginx/conf.d/%s.crt" % config_id
key_path = "/etc/nginx/conf.d/%s.key" % config_id
cert_body = post['ssl_config']['ssl_cert_body']
key_body = post['ssl_config']['ssl_key_body']
if cert_body and key_body:
write_config(cert_path,cert_body)
write_config(key_path,key_body)
proxy['protocols'] = True
proxy['ssl_cert'] = cert_body
proxy['ssl_cert_path'] = cert_path
proxy['ssl_key'] = key_body
proxy['ssl_key_path'] = key_path
if not post['ssl_config'].has_key('ssl_port'):
proxy['listen'] = 443
else:
if proxy['listen'] == 443:
proxy['listen'] = 80
upstream_list = []
for upstream in post['upstream_list']:
weight = upstream['upstream_weight']
fail_timeout = upstream['upstream_fail_timeout']
max_fails = upstream['upstream_max_fails']
if not weight:
weight = 10
if not fail_timeout:
fail_timeout = 5
if not max_fails:
max_fails = 3
upstream_list.append({
'status' : True,
'address' : upstream['upstream_address'],
'port' : int(upstream['upstream_port']),
'weight' : int(weight),
'max_fails' : int(max_fails),
'fail_timeout' : int(fail_timeout),
})
p_config = { 'proxy' : proxy, 'upstream' : upstream_list }
config_context = build_proxy_config(p_config)
write_config(config_path,config_context)
test_ret = test_config()
if test_ret['status'] == 0:
#if len(_old_p_config) != 0:
# old_p_config.delete()
proxy['status'] = True
if create_flag:
obj_p_config = proxy_config.objects.create(**proxy)
else:
proxy_config.objects.filter(config_id=config_id).update(**proxy)
obj_p_config = proxy_config.objects.get(config_id=config_id)
obj_p_config.upstream_list.all().delete()
for up in upstream_list:
obj_p_config.upstream_list.add(upstream_config.objects.create(**up))
obj_p_config.save()
pass
set_firewall()
context = {"flag":"Success"}
else:
context = {"flag":"Error","context":test_ret['output']}
reload_config()
else:
context = {"flag":"Error","context":"ArgsError"}
else:
context = {"flag":"Error","context":"NicError"}
except Exception, e:
context = {"flag":"Error","context":str(e)}
return HttpResponse(json.dumps(context))
pass