You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
119 lines
4.7 KiB
119 lines
4.7 KiB
from concurrent.futures import ThreadPoolExecutor
|
|
from changedetectionio.store import ChangeDetectionStore
|
|
|
|
from functools import wraps
|
|
|
|
from flask import Blueprint
|
|
from flask_login import login_required
|
|
|
|
STATUS_CHECKING = 0
|
|
STATUS_FAILED = 1
|
|
STATUS_OK = 2
|
|
THREADPOOL_MAX_WORKERS = 3
|
|
_DEFAULT_POOL = ThreadPoolExecutor(max_workers=THREADPOOL_MAX_WORKERS)
|
|
|
|
|
|
# Maybe use fetch-time if its >5 to show some expected load time?
|
|
def threadpool(f, executor=None):
|
|
@wraps(f)
|
|
def wrap(*args, **kwargs):
|
|
return (executor or _DEFAULT_POOL).submit(f, *args, **kwargs)
|
|
|
|
return wrap
|
|
|
|
|
|
def construct_blueprint(datastore: ChangeDetectionStore):
|
|
check_proxies_blueprint = Blueprint('check_proxies', __name__)
|
|
checks_in_progress = {}
|
|
|
|
@threadpool
|
|
def long_task(uuid, preferred_proxy):
|
|
import time
|
|
from changedetectionio.content_fetchers import exceptions as content_fetcher_exceptions
|
|
from changedetectionio.processors.text_json_diff import text_json_diff
|
|
from changedetectionio.safe_jinja import render as jinja_render
|
|
|
|
status = {'status': '', 'length': 0, 'text': ''}
|
|
|
|
contents = ''
|
|
now = time.time()
|
|
try:
|
|
update_handler = text_json_diff.perform_site_check(datastore=datastore, watch_uuid=uuid)
|
|
update_handler.call_browser()
|
|
# title, size is len contents not len xfer
|
|
except content_fetcher_exceptions.Non200ErrorCodeReceived as e:
|
|
if e.status_code == 404:
|
|
status.update({'status': 'OK', 'length': len(contents), 'text': f"OK but 404 (page not found)"})
|
|
elif e.status_code == 403 or e.status_code == 401:
|
|
status.update({'status': 'ERROR', 'length': len(contents), 'text': f"{e.status_code} - Access denied"})
|
|
else:
|
|
status.update({'status': 'ERROR', 'length': len(contents), 'text': f"Status code: {e.status_code}"})
|
|
except text_json_diff.FilterNotFoundInResponse:
|
|
status.update({'status': 'OK', 'length': len(contents), 'text': f"OK but CSS/xPath filter not found (page changed layout?)"})
|
|
except content_fetcher_exceptions.EmptyReply as e:
|
|
if e.status_code == 403 or e.status_code == 401:
|
|
status.update({'status': 'ERROR OTHER', 'length': len(contents), 'text': f"Got empty reply with code {e.status_code} - Access denied"})
|
|
else:
|
|
status.update({'status': 'ERROR OTHER', 'length': len(contents) if contents else 0, 'text': f"Empty reply with code {e.status_code}, needs chrome?"})
|
|
except content_fetcher_exceptions.ReplyWithContentButNoText as e:
|
|
txt = f"Got reply but with no content - Status code {e.status_code} - It's possible that the filters were found, but contained no usable text (or contained only an image)."
|
|
status.update({'status': 'ERROR', 'text': txt})
|
|
except Exception as e:
|
|
status.update({'status': 'ERROR OTHER', 'length': len(contents) if contents else 0, 'text': 'Error: '+type(e).__name__+str(e)})
|
|
else:
|
|
status.update({'status': 'OK', 'length': len(contents), 'text': ''})
|
|
|
|
if status.get('text'):
|
|
# parse 'text' as text for safety
|
|
v = {'text': status['text']}
|
|
status['text'] = jinja_render(template_str='{{text|e}}', **v)
|
|
|
|
status['time'] = "{:.2f}s".format(time.time() - now)
|
|
|
|
return status
|
|
|
|
def _recalc_check_status(uuid):
|
|
|
|
results = {}
|
|
for k, v in checks_in_progress.get(uuid, {}).items():
|
|
try:
|
|
r_1 = v.result(timeout=0.05)
|
|
except Exception as e:
|
|
# If timeout error?
|
|
results[k] = {'status': 'RUNNING'}
|
|
|
|
else:
|
|
results[k] = r_1
|
|
|
|
return results
|
|
|
|
@login_required
|
|
@check_proxies_blueprint.route("/<string:uuid>/status", methods=['GET'])
|
|
def get_recheck_status(uuid):
|
|
results = _recalc_check_status(uuid=uuid)
|
|
return results
|
|
|
|
@login_required
|
|
@check_proxies_blueprint.route("/<string:uuid>/start", methods=['GET'])
|
|
def start_check(uuid):
|
|
|
|
if not datastore.proxy_list:
|
|
return
|
|
|
|
if checks_in_progress.get(uuid):
|
|
state = _recalc_check_status(uuid=uuid)
|
|
for proxy_key, v in state.items():
|
|
if v.get('status') == 'RUNNING':
|
|
return state
|
|
else:
|
|
checks_in_progress[uuid] = {}
|
|
|
|
for k, v in datastore.proxy_list.items():
|
|
if not checks_in_progress[uuid].get(k):
|
|
checks_in_progress[uuid][k] = long_task(uuid=uuid, preferred_proxy=k)
|
|
|
|
results = _recalc_check_status(uuid=uuid)
|
|
return results
|
|
|
|
return check_proxies_blueprint
|