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Fixed real-time regex

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This commit is contained in:
nik012003
2022-06-18 13:05:59 +02:00
committed by DomySh
parent da3e06a5e0
commit fa88940112
3 changed files with 94 additions and 68 deletions
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96
backend/utils.py
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@@ -1,4 +1,5 @@
from asyncore import file_dispatcher
from imp import reload
from proxy import Filter, Proxy
import random, string, os, threading, sqlite3, time, atexit, socket
from kthread import KThread
@@ -148,14 +149,12 @@ class ProxyManager:
self.db.query("UPDATE services SET status = ? WHERE service_id = ?;", (status, id))
def __proxy_starter(self, id, proxy:Proxy, next_status, saved_status):
def stats_updater(filter:Filter):
self.db.query("UPDATE regexes SET blocked_packets = ? WHERE regex_id = ?;", (filter.blocked, filter.code))
def func():
while True:
if check_port_is_open(proxy.public_port):
self.__update_status_db(id, next_status)
if saved_status[0] == "wait": saved_status[0] = next_status
proxy_status = proxy.start(callback=stats_updater)
proxy_status = proxy.start(in_pause=(next_status==STATUS.PAUSE))
if proxy_status == 1:
self.__update_status_db(id, STATUS.STOP)
return
@@ -170,10 +169,13 @@ class ProxyManager:
proxy = None
thr_starter:KThread = None
previous_status = "stop"
previous_status = STATUS.STOP
filters = {}
while True:
restart_required = False
reload_required = False
data = self.get_service_data(id)
#Close thread
@@ -181,14 +183,7 @@ class ProxyManager:
if proxy and proxy.isactive():
proxy.stop()
return
restart_required = False
#Port checks
if proxy and (proxy.internal_port != data['internal_port'] or proxy.public_port != data['public_port']):
restart_required = True
#Filter check
old_filters = set(filters.keys())
new_filters = set([f["id"] for f in data["filters"]])
@@ -196,12 +191,12 @@ class ProxyManager:
#remove old filters
for f in old_filters:
if not f in new_filters:
restart_required = False
reload_required = True
del filters[f]
for f in new_filters:
if not f in old_filters:
restart_required = False
reload_required = True
filter_info = [ele for ele in data['filters'] if ele["id"] == f][0]
filters[f] = Filter(
is_case_sensitive=filter_info["is_case_sensitive"],
@@ -212,21 +207,43 @@ class ProxyManager:
blocked_packets=filter_info["n_packets"],
code=f
)
def stats_updater(filter:Filter):
print("Callback received",filter.blocked, filter.code)
self.db.query("UPDATE regexes SET blocked_packets = ? WHERE regex_id = ?;", (filter.blocked, filter.code))
if not proxy:
proxy = Proxy(
internal_port=data['internal_port'],
public_port=data['public_port'],
filters=list(filters.values()),
internal_host=LOCALHOST_IP,
callback_blocked_update=stats_updater
)
#Port checks
if proxy.internal_port != data['internal_port'] or proxy.public_port != data['public_port']:
proxy.internal_port = data['internal_port']
proxy.public_port = data['public_port']
restart_required = True
#Update filters
if reload_required:
proxy.filters = list(filters.values())
#proxy status managment
if previous_status != next_status[0] or restart_required:
if (previous_status, next_status[0]) in [(STATUS.ACTIVE, STATUS.PAUSE), (STATUS.STOP, STATUS.PAUSE), (STATUS.PAUSE, STATUS.PAUSE)]:
if proxy: proxy.stop()
proxy = Proxy(
internal_port=data['internal_port'],
public_port=data['public_port'],
filters=[],
internal_host=LOCALHOST_IP,
)
previous_status = next_status[0] = STATUS.PAUSE
self.__update_status_db(id, STATUS.WAIT)
thr_starter = self.__proxy_starter(id, proxy, STATUS.PAUSE, [previous_status])
restart_required = False
if previous_status != next_status[0]:
# ACTIVE -> PAUSE or PAUSE -> ACTIVE
if (previous_status, next_status[0]) in [(STATUS.ACTIVE, STATUS.PAUSE), (STATUS.PAUSE, STATUS.ACTIVE)]:
if restart_required:
proxy.restart(in_pause=next_status[0])
else:
if next_status[0] == STATUS.ACTIVE: proxy.reload()
else: proxy.pause()
previous_status = next_status[0]
self.__update_status_db(id, next_status[0])
reload_required = restart_required = False
# ACTIVE -> STOP
elif (previous_status,next_status[0]) in [(STATUS.ACTIVE, STATUS.STOP), (STATUS.WAIT, STATUS.STOP), (STATUS.PAUSE, STATUS.STOP)]: #Stop proxy
@@ -234,26 +251,23 @@ class ProxyManager:
proxy.stop()
previous_status = next_status[0] = STATUS.STOP
self.__update_status_db(id, STATUS.STOP)
restart_required = False
elif (previous_status, next_status[0]) in [(STATUS.PAUSE, STATUS.ACTIVE), (STATUS.STOP, STATUS.ACTIVE), (STATUS.ACTIVE, STATUS.ACTIVE)]:
if proxy: proxy.stop()
proxy = Proxy(
internal_port=data['internal_port'],
public_port=data['public_port'],
filters=list(filters.values()),
internal_host=LOCALHOST_IP,
)
previous_status = next_status[0] = STATUS.ACTIVE
reload_required = restart_required = False
# STOP -> ACTIVE or STOP -> PAUSE
elif (previous_status, next_status[0]) in [(STATUS.STOP, STATUS.ACTIVE), (STATUS.STOP, STATUS.PAUSE)]:
previous_status = next_status[0]
self.__update_status_db(id, STATUS.WAIT)
thr_starter = self.__proxy_starter(id, proxy, STATUS.ACTIVE, [previous_status])
restart_required = False
thr_starter = self.__proxy_starter(id, proxy, next_status[0], [previous_status])
reload_required = restart_required = False
else:
self.__update_status_db(id, previous_status)
if restart_required: proxy.restart()
elif reload_required: proxy.reload()
signal.wait()
signal.clear()
def check_port_is_open(port):
try: