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1285 lines
50 KiB
1285 lines
50 KiB
#!/usr/bin/python3
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# @todo logging
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# @todo extra options for url like , verify=False etc.
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# @todo enable https://urllib3.readthedocs.io/en/latest/user-guide.html#ssl as option?
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# @todo option for interval day/6 hour/etc
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# @todo on change detected, config for calling some API
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# @todo fetch title into json
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# https://distill.io/features
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# proxy per check
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# - flask_cors, itsdangerous,MarkupSafe
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import datetime
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import os
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import queue
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import threading
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import time
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from copy import deepcopy
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from threading import Event
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import flask_login
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import pytz
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import timeago
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from feedgen.feed import FeedGenerator
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from flask import (
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Flask,
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abort,
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flash,
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make_response,
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redirect,
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render_template,
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request,
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send_from_directory,
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session,
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url_for,
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)
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from flask_login import login_required
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from flask_wtf import CSRFProtect
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from changedetectionio import html_tools
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__version__ = '0.39.13.1'
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datastore = None
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# Local
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running_update_threads = []
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ticker_thread = None
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extra_stylesheets = []
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update_q = queue.Queue()
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notification_q = queue.Queue()
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app = Flask(__name__,
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static_url_path="",
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static_folder="static",
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template_folder="templates")
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# Stop browser caching of assets
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app.config['SEND_FILE_MAX_AGE_DEFAULT'] = 0
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app.config.exit = Event()
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app.config['NEW_VERSION_AVAILABLE'] = False
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app.config['LOGIN_DISABLED'] = False
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#app.config["EXPLAIN_TEMPLATE_LOADING"] = True
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# Disables caching of the templates
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app.config['TEMPLATES_AUTO_RELOAD'] = True
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csrf = CSRFProtect()
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csrf.init_app(app)
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notification_debug_log=[]
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def init_app_secret(datastore_path):
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secret = ""
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path = "{}/secret.txt".format(datastore_path)
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try:
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with open(path, "r") as f:
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secret = f.read()
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except FileNotFoundError:
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import secrets
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with open(path, "w") as f:
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secret = secrets.token_hex(32)
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f.write(secret)
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return secret
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# We use the whole watch object from the store/JSON so we can see if there's some related status in terms of a thread
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# running or something similar.
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@app.template_filter('format_last_checked_time')
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def _jinja2_filter_datetime(watch_obj, format="%Y-%m-%d %H:%M:%S"):
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# Worker thread tells us which UUID it is currently processing.
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for t in running_update_threads:
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if t.current_uuid == watch_obj['uuid']:
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return "Checking now.."
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if watch_obj['last_checked'] == 0:
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return 'Not yet'
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return timeago.format(int(watch_obj['last_checked']), time.time())
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# @app.context_processor
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# def timeago():
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# def _timeago(lower_time, now):
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# return timeago.format(lower_time, now)
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# return dict(timeago=_timeago)
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@app.template_filter('format_timestamp_timeago')
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def _jinja2_filter_datetimestamp(timestamp, format="%Y-%m-%d %H:%M:%S"):
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return timeago.format(timestamp, time.time())
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# return timeago.format(timestamp, time.time())
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# return datetime.datetime.utcfromtimestamp(timestamp).strftime(format)
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# When nobody is logged in Flask-Login's current_user is set to an AnonymousUser object.
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class User(flask_login.UserMixin):
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id=None
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def set_password(self, password):
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return True
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def get_user(self, email="defaultuser@changedetection.io"):
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return self
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def is_authenticated(self):
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return True
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def is_active(self):
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return True
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def is_anonymous(self):
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return False
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def get_id(self):
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return str(self.id)
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# Compare given password against JSON store or Env var
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def check_password(self, password):
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import base64
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import hashlib
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# Can be stored in env (for deployments) or in the general configs
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raw_salt_pass = os.getenv("SALTED_PASS", False)
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if not raw_salt_pass:
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raw_salt_pass = datastore.data['settings']['application']['password']
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raw_salt_pass = base64.b64decode(raw_salt_pass)
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salt_from_storage = raw_salt_pass[:32] # 32 is the length of the salt
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# Use the exact same setup you used to generate the key, but this time put in the password to check
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new_key = hashlib.pbkdf2_hmac(
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'sha256',
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password.encode('utf-8'), # Convert the password to bytes
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salt_from_storage,
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100000
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)
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new_key = salt_from_storage + new_key
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return new_key == raw_salt_pass
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pass
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def changedetection_app(config=None, datastore_o=None):
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global datastore
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datastore = datastore_o
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#app.config.update(config or {})
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login_manager = flask_login.LoginManager(app)
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login_manager.login_view = 'login'
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app.secret_key = init_app_secret(config['datastore_path'])
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# Setup cors headers to allow all domains
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# https://flask-cors.readthedocs.io/en/latest/
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# CORS(app)
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@login_manager.user_loader
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def user_loader(email):
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user = User()
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user.get_user(email)
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return user
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@login_manager.unauthorized_handler
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def unauthorized_handler():
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# @todo validate its a URL of this host and use that
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return redirect(url_for('login', next=url_for('index')))
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@app.route('/logout')
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def logout():
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flask_login.logout_user()
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return redirect(url_for('index'))
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# https://github.com/pallets/flask/blob/93dd1709d05a1cf0e886df6223377bdab3b077fb/examples/tutorial/flaskr/__init__.py#L39
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# You can divide up the stuff like this
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@app.route('/login', methods=['GET', 'POST'])
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def login():
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if not datastore.data['settings']['application']['password'] and not os.getenv("SALTED_PASS", False):
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flash("Login not required, no password enabled.", "notice")
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return redirect(url_for('index'))
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if request.method == 'GET':
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if flask_login.current_user.is_authenticated:
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flash("Already logged in")
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return redirect(url_for("index"))
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output = render_template("login.html")
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return output
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user = User()
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user.id = "defaultuser@changedetection.io"
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password = request.form.get('password')
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if (user.check_password(password)):
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flask_login.login_user(user, remember=True)
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# For now there's nothing else interesting here other than the index/list page
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# It's more reliable and safe to ignore the 'next' redirect
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# When we used...
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# next = request.args.get('next')
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# return redirect(next or url_for('index'))
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# We would sometimes get login loop errors on sites hosted in sub-paths
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# note for the future:
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# if not is_safe_url(next):
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# return flask.abort(400)
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return redirect(url_for('index'))
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else:
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flash('Incorrect password', 'error')
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return redirect(url_for('login'))
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@app.before_request
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def do_something_whenever_a_request_comes_in():
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# Disable password login if there is not one set
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# (No password in settings or env var)
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app.config['LOGIN_DISABLED'] = datastore.data['settings']['application']['password'] == False and os.getenv("SALTED_PASS", False) == False
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# Set the auth cookie path if we're running as X-settings/X-Forwarded-Prefix
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if os.getenv('USE_X_SETTINGS') and 'X-Forwarded-Prefix' in request.headers:
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app.config['REMEMBER_COOKIE_PATH'] = request.headers['X-Forwarded-Prefix']
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app.config['SESSION_COOKIE_PATH'] = request.headers['X-Forwarded-Prefix']
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# For the RSS path, allow access via a token
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if request.path == '/rss' and request.args.get('token'):
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app_rss_token = datastore.data['settings']['application']['rss_access_token']
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rss_url_token = request.args.get('token')
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if app_rss_token == rss_url_token:
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app.config['LOGIN_DISABLED'] = True
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@app.route("/rss", methods=['GET'])
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@login_required
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def rss():
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from . import diff
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limit_tag = request.args.get('tag')
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# Sort by last_changed and add the uuid which is usually the key..
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sorted_watches = []
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# @todo needs a .itemsWithTag() or something
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for uuid, watch in datastore.data['watching'].items():
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if limit_tag != None:
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# Support for comma separated list of tags.
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for tag_in_watch in watch['tag'].split(','):
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tag_in_watch = tag_in_watch.strip()
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if tag_in_watch == limit_tag:
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watch['uuid'] = uuid
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sorted_watches.append(watch)
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else:
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watch['uuid'] = uuid
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sorted_watches.append(watch)
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sorted_watches.sort(key=lambda x: x['last_changed'], reverse=True)
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fg = FeedGenerator()
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fg.title('changedetection.io')
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fg.description('Feed description')
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fg.link(href='https://changedetection.io')
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for watch in sorted_watches:
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dates = list(watch['history'].keys())
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# Re #521 - Don't bother processing this one if theres less than 2 snapshots, means we never had a change detected.
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if len(dates) < 2:
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continue
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# Convert to int, sort and back to str again
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# @todo replace datastore getter that does this automatically
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dates = [int(i) for i in dates]
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dates.sort(reverse=True)
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dates = [str(i) for i in dates]
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prev_fname = watch['history'][dates[1]]
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if not watch['viewed']:
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# Re #239 - GUID needs to be individual for each event
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# @todo In the future make this a configurable link back (see work on BASE_URL https://github.com/dgtlmoon/changedetection.io/pull/228)
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guid = "{}/{}".format(watch['uuid'], watch['last_changed'])
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fe = fg.add_entry()
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# Include a link to the diff page, they will have to login here to see if password protection is enabled.
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# Description is the page you watch, link takes you to the diff JS UI page
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base_url = datastore.data['settings']['application']['base_url']
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if base_url == '':
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base_url = "<base-url-env-var-not-set>"
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diff_link = {'href': "{}{}".format(base_url, url_for('diff_history_page', uuid=watch['uuid']))}
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fe.link(link=diff_link)
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# @todo watch should be a getter - watch.get('title') (internally if URL else..)
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watch_title = watch.get('title') if watch.get('title') else watch.get('url')
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fe.title(title=watch_title)
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latest_fname = watch['history'][dates[0]]
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html_diff = diff.render_diff(prev_fname, latest_fname, include_equal=False, line_feed_sep="</br>")
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fe.description(description="<![CDATA[<html><body><h4>{}</h4>{}</body></html>".format(watch_title, html_diff))
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fe.guid(guid, permalink=False)
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dt = datetime.datetime.fromtimestamp(int(watch['newest_history_key']))
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dt = dt.replace(tzinfo=pytz.UTC)
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fe.pubDate(dt)
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response = make_response(fg.rss_str())
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response.headers.set('Content-Type', 'application/rss+xml')
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return response
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@app.route("/", methods=['GET'])
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@login_required
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def index():
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from changedetectionio import forms
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limit_tag = request.args.get('tag')
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pause_uuid = request.args.get('pause')
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# Redirect for the old rss path which used the /?rss=true
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if request.args.get('rss'):
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return redirect(url_for('rss', tag=limit_tag))
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if pause_uuid:
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try:
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datastore.data['watching'][pause_uuid]['paused'] ^= True
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datastore.needs_write = True
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return redirect(url_for('index', tag = limit_tag))
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except KeyError:
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pass
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# Sort by last_changed and add the uuid which is usually the key..
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sorted_watches = []
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for uuid, watch in datastore.data['watching'].items():
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if limit_tag != None:
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# Support for comma separated list of tags.
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for tag_in_watch in watch['tag'].split(','):
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tag_in_watch = tag_in_watch.strip()
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if tag_in_watch == limit_tag:
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watch['uuid'] = uuid
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sorted_watches.append(watch)
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else:
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watch['uuid'] = uuid
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sorted_watches.append(watch)
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sorted_watches.sort(key=lambda x: x['last_changed'], reverse=True)
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existing_tags = datastore.get_all_tags()
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form = forms.quickWatchForm(request.form)
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output = render_template("watch-overview.html",
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form=form,
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watches=sorted_watches,
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tags=existing_tags,
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active_tag=limit_tag,
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app_rss_token=datastore.data['settings']['application']['rss_access_token'],
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has_unviewed=datastore.data['has_unviewed'],
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# Don't link to hosting when we're on the hosting environment
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hosted_sticky=os.getenv("SALTED_PASS", False) == False,
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guid=datastore.data['app_guid'],
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queued_uuids=update_q.queue)
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if session.get('share-link'):
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del(session['share-link'])
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return output
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# AJAX endpoint for sending a test
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@app.route("/notification/send-test", methods=['POST'])
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@login_required
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def ajax_callback_send_notification_test():
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import apprise
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apobj = apprise.Apprise()
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# validate URLS
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if not len(request.form['notification_urls'].strip()):
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return make_response({'error': 'No Notification URLs set'}, 400)
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for server_url in request.form['notification_urls'].splitlines():
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if len(server_url.strip()):
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if not apobj.add(server_url):
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message = '{} is not a valid AppRise URL.'.format(server_url)
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return make_response({'error': message}, 400)
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try:
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n_object = {'watch_url': request.form['window_url'],
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'notification_urls': request.form['notification_urls'].splitlines(),
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'notification_title': request.form['notification_title'].strip(),
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'notification_body': request.form['notification_body'].strip(),
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'notification_format': request.form['notification_format'].strip()
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}
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notification_q.put(n_object)
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except Exception as e:
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return make_response({'error': str(e)}, 400)
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return 'OK'
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@app.route("/scrub", methods=['GET', 'POST'])
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@login_required
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def scrub_page():
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if request.method == 'POST':
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confirmtext = request.form.get('confirmtext')
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if confirmtext == 'scrub':
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changes_removed = 0
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for uuid in datastore.data['watching'].keys():
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datastore.scrub_watch(uuid)
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flash("Cleared all snapshot history")
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else:
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flash('Incorrect confirmation text.', 'error')
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return redirect(url_for('index'))
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output = render_template("scrub.html")
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return output
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|
|
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# If they edited an existing watch, we need to know to reset the current/previous md5 to include
|
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# the excluded text.
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def get_current_checksum_include_ignore_text(uuid):
|
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import hashlib
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from changedetectionio import fetch_site_status
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# Get the most recent one
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newest_history_key = datastore.get_val(uuid, 'newest_history_key')
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# 0 means that theres only one, so that there should be no 'unviewed' history available
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if newest_history_key == 0:
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newest_history_key = list(datastore.data['watching'][uuid]['history'].keys())[0]
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if newest_history_key:
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with open(datastore.data['watching'][uuid]['history'][newest_history_key],
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encoding='utf-8') as file:
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raw_content = file.read()
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handler = fetch_site_status.perform_site_check(datastore=datastore)
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stripped_content = html_tools.strip_ignore_text(raw_content,
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datastore.data['watching'][uuid]['ignore_text'])
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if datastore.data['settings']['application'].get('ignore_whitespace', False):
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checksum = hashlib.md5(stripped_content.translate(None, b'\r\n\t ')).hexdigest()
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else:
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checksum = hashlib.md5(stripped_content).hexdigest()
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return checksum
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return datastore.data['watching'][uuid]['previous_md5']
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|
|
|
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@app.route("/edit/<string:uuid>", methods=['GET', 'POST'])
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@login_required
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# https://stackoverflow.com/questions/42984453/wtforms-populate-form-with-data-if-data-exists
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# https://wtforms.readthedocs.io/en/3.0.x/forms/#wtforms.form.Form.populate_obj ?
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|
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def edit_page(uuid):
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from changedetectionio import forms
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|
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using_default_check_time = True
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# More for testing, possible to return the first/only
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if not datastore.data['watching'].keys():
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flash("No watches to edit", "error")
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return redirect(url_for('index'))
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|
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if uuid == 'first':
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uuid = list(datastore.data['watching'].keys()).pop()
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|
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if not uuid in datastore.data['watching']:
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flash("No watch with the UUID %s found." % (uuid), "error")
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return redirect(url_for('index'))
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|
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# be sure we update with a copy instead of accidently editing the live object by reference
|
|
default = deepcopy(datastore.data['watching'][uuid])
|
|
|
|
# Show system wide default if nothing configured
|
|
if datastore.data['watching'][uuid]['fetch_backend'] is None:
|
|
default['fetch_backend'] = datastore.data['settings']['application']['fetch_backend']
|
|
|
|
# Show system wide default if nothing configured
|
|
if all(value == 0 or value == None for value in datastore.data['watching'][uuid]['time_between_check'].values()):
|
|
default['time_between_check'] = deepcopy(datastore.data['settings']['requests']['time_between_check'])
|
|
|
|
# Defaults for proxy choice
|
|
if datastore.proxy_list is not None: # When enabled
|
|
system_proxy = datastore.data['settings']['requests']['proxy']
|
|
if default['proxy'] is None:
|
|
default['proxy'] = system_proxy
|
|
else:
|
|
# Does the chosen one exist?
|
|
if not any(default['proxy'] in tup for tup in datastore.proxy_list):
|
|
default['proxy'] = datastore.proxy_list[0][0]
|
|
|
|
# Used by the form handler to keep or remove the proxy settings
|
|
default['proxy_list'] = datastore.proxy_list
|
|
|
|
# proxy_override set to the json/text list of the items
|
|
form = forms.watchForm(formdata=request.form if request.method == 'POST' else None,
|
|
data=default,
|
|
)
|
|
|
|
if datastore.proxy_list is None:
|
|
# @todo - Couldn't get setattr() etc dynamic addition working, so remove it instead
|
|
del form.proxy
|
|
else:
|
|
form.proxy.choices = datastore.proxy_list
|
|
if default['proxy'] is None:
|
|
form.proxy.default='http://hello'
|
|
|
|
if request.method == 'POST' and form.validate():
|
|
extra_update_obj = {}
|
|
|
|
# Re #110, if they submit the same as the default value, set it to None, so we continue to follow the default
|
|
# Assume we use the default value, unless something relevant is different, then use the form value
|
|
# values could be None, 0 etc.
|
|
# Set to None unless the next for: says that something is different
|
|
extra_update_obj['time_between_check'] = dict.fromkeys(form.time_between_check.data)
|
|
for k, v in form.time_between_check.data.items():
|
|
if v and v != datastore.data['settings']['requests']['time_between_check'][k]:
|
|
extra_update_obj['time_between_check'] = form.time_between_check.data
|
|
using_default_check_time = False
|
|
break
|
|
|
|
# Use the default if its the same as system wide
|
|
if form.fetch_backend.data == datastore.data['settings']['application']['fetch_backend']:
|
|
extra_update_obj['fetch_backend'] = None
|
|
|
|
# Notification URLs
|
|
datastore.data['watching'][uuid]['notification_urls'] = form.notification_urls.data
|
|
|
|
# Ignore text
|
|
form_ignore_text = form.ignore_text.data
|
|
datastore.data['watching'][uuid]['ignore_text'] = form_ignore_text
|
|
|
|
# Reset the previous_md5 so we process a new snapshot including stripping ignore text.
|
|
if form_ignore_text:
|
|
if len(datastore.data['watching'][uuid]['history']):
|
|
extra_update_obj['previous_md5'] = get_current_checksum_include_ignore_text(uuid=uuid)
|
|
|
|
# Reset the previous_md5 so we process a new snapshot including stripping ignore text.
|
|
if form.css_filter.data.strip() != datastore.data['watching'][uuid]['css_filter']:
|
|
if len(datastore.data['watching'][uuid]['history']):
|
|
extra_update_obj['previous_md5'] = get_current_checksum_include_ignore_text(uuid=uuid)
|
|
|
|
datastore.data['watching'][uuid].update(form.data)
|
|
datastore.data['watching'][uuid].update(extra_update_obj)
|
|
|
|
flash("Updated watch.")
|
|
|
|
# Re #286 - We wait for syncing new data to disk in another thread every 60 seconds
|
|
# But in the case something is added we should save straight away
|
|
datastore.needs_write_urgent = True
|
|
|
|
# Queue the watch for immediate recheck
|
|
update_q.put(uuid)
|
|
|
|
# Diff page [edit] link should go back to diff page
|
|
if request.args.get("next") and request.args.get("next") == 'diff' and not form.save_and_preview_button.data:
|
|
return redirect(url_for('diff_history_page', uuid=uuid))
|
|
else:
|
|
if form.save_and_preview_button.data:
|
|
flash('You may need to reload this page to see the new content.')
|
|
return redirect(url_for('preview_page', uuid=uuid))
|
|
else:
|
|
return redirect(url_for('index'))
|
|
|
|
else:
|
|
if request.method == 'POST' and not form.validate():
|
|
flash("An error occurred, please see below.", "error")
|
|
|
|
output = render_template("edit.html",
|
|
uuid=uuid,
|
|
watch=datastore.data['watching'][uuid],
|
|
form=form,
|
|
has_empty_checktime=using_default_check_time,
|
|
using_global_webdriver_wait=default['webdriver_delay'] is None,
|
|
current_base_url=datastore.data['settings']['application']['base_url'],
|
|
emailprefix=os.getenv('NOTIFICATION_MAIL_BUTTON_PREFIX', False)
|
|
)
|
|
|
|
return output
|
|
|
|
@app.route("/settings", methods=['GET', "POST"])
|
|
@login_required
|
|
def settings_page():
|
|
from changedetectionio import content_fetcher, forms
|
|
|
|
default = deepcopy(datastore.data['settings'])
|
|
if datastore.proxy_list is not None:
|
|
# When enabled
|
|
system_proxy = datastore.data['settings']['requests']['proxy']
|
|
# In the case it doesnt exist anymore
|
|
if not any([system_proxy in tup for tup in datastore.proxy_list]):
|
|
system_proxy = None
|
|
|
|
default['requests']['proxy'] = system_proxy if system_proxy is not None else datastore.proxy_list[0][0]
|
|
# Used by the form handler to keep or remove the proxy settings
|
|
default['proxy_list'] = datastore.proxy_list
|
|
|
|
|
|
# Don't use form.data on POST so that it doesnt overrid the checkbox status from the POST status
|
|
form = forms.globalSettingsForm(formdata=request.form if request.method == 'POST' else None,
|
|
data=default
|
|
)
|
|
if datastore.proxy_list is None:
|
|
# @todo - Couldn't get setattr() etc dynamic addition working, so remove it instead
|
|
del form.requests.form.proxy
|
|
else:
|
|
form.requests.form.proxy.choices = datastore.proxy_list
|
|
|
|
if request.method == 'POST':
|
|
# Password unset is a GET, but we can lock the session to a salted env password to always need the password
|
|
if form.application.form.data.get('removepassword_button', False):
|
|
# SALTED_PASS means the password is "locked" to what we set in the Env var
|
|
if not os.getenv("SALTED_PASS", False):
|
|
datastore.remove_password()
|
|
flash("Password protection removed.", 'notice')
|
|
flask_login.logout_user()
|
|
return redirect(url_for('settings_page'))
|
|
|
|
if form.validate():
|
|
datastore.data['settings']['application'].update(form.data['application'])
|
|
datastore.data['settings']['requests'].update(form.data['requests'])
|
|
|
|
if not os.getenv("SALTED_PASS", False) and len(form.application.form.password.encrypted_password):
|
|
datastore.data['settings']['application']['password'] = form.application.form.password.encrypted_password
|
|
datastore.needs_write_urgent = True
|
|
flash("Password protection enabled.", 'notice')
|
|
flask_login.logout_user()
|
|
return redirect(url_for('index'))
|
|
|
|
datastore.needs_write_urgent = True
|
|
flash("Settings updated.")
|
|
|
|
else:
|
|
flash("An error occurred, please see below.", "error")
|
|
|
|
output = render_template("settings.html",
|
|
form=form,
|
|
current_base_url = datastore.data['settings']['application']['base_url'],
|
|
hide_remove_pass=os.getenv("SALTED_PASS", False),
|
|
emailprefix=os.getenv('NOTIFICATION_MAIL_BUTTON_PREFIX', False))
|
|
|
|
return output
|
|
|
|
@app.route("/import", methods=['GET', "POST"])
|
|
@login_required
|
|
def import_page():
|
|
remaining_urls = []
|
|
if request.method == 'POST':
|
|
from .importer import import_url_list, import_distill_io_json
|
|
|
|
# URL List import
|
|
if request.values.get('urls') and len(request.values.get('urls').strip()):
|
|
# Import and push into the queue for immediate update check
|
|
importer = import_url_list()
|
|
importer.run(data=request.values.get('urls'), flash=flash, datastore=datastore)
|
|
for uuid in importer.new_uuids:
|
|
update_q.put(uuid)
|
|
|
|
if len(importer.remaining_data) == 0:
|
|
return redirect(url_for('index'))
|
|
else:
|
|
remaining_urls = importer.remaining_data
|
|
|
|
# Distill.io import
|
|
if request.values.get('distill-io') and len(request.values.get('distill-io').strip()):
|
|
# Import and push into the queue for immediate update check
|
|
d_importer = import_distill_io_json()
|
|
d_importer.run(data=request.values.get('distill-io'), flash=flash, datastore=datastore)
|
|
for uuid in d_importer.new_uuids:
|
|
update_q.put(uuid)
|
|
|
|
|
|
|
|
# Could be some remaining, or we could be on GET
|
|
output = render_template("import.html",
|
|
import_url_list_remaining="\n".join(remaining_urls),
|
|
original_distill_json=''
|
|
)
|
|
return output
|
|
|
|
# Clear all statuses, so we do not see the 'unviewed' class
|
|
@app.route("/api/mark-all-viewed", methods=['GET'])
|
|
@login_required
|
|
def mark_all_viewed():
|
|
|
|
# Save the current newest history as the most recently viewed
|
|
for watch_uuid, watch in datastore.data['watching'].items():
|
|
datastore.set_last_viewed(watch_uuid, watch['newest_history_key'])
|
|
|
|
flash("Cleared all statuses.")
|
|
return redirect(url_for('index'))
|
|
|
|
@app.route("/diff/<string:uuid>", methods=['GET'])
|
|
@login_required
|
|
def diff_history_page(uuid):
|
|
|
|
# More for testing, possible to return the first/only
|
|
if uuid == 'first':
|
|
uuid = list(datastore.data['watching'].keys()).pop()
|
|
|
|
extra_stylesheets = [url_for('static_content', group='styles', filename='diff.css')]
|
|
try:
|
|
watch = datastore.data['watching'][uuid]
|
|
except KeyError:
|
|
flash("No history found for the specified link, bad link?", "error")
|
|
return redirect(url_for('index'))
|
|
|
|
dates = list(watch['history'].keys())
|
|
# Convert to int, sort and back to str again
|
|
# @todo replace datastore getter that does this automatically
|
|
dates = [int(i) for i in dates]
|
|
dates.sort(reverse=True)
|
|
dates = [str(i) for i in dates]
|
|
|
|
if len(dates) < 2:
|
|
flash("Not enough saved change detection snapshots to produce a report.", "error")
|
|
return redirect(url_for('index'))
|
|
|
|
# Save the current newest history as the most recently viewed
|
|
datastore.set_last_viewed(uuid, dates[0])
|
|
newest_file = watch['history'][dates[0]]
|
|
|
|
try:
|
|
with open(newest_file, 'r') as f:
|
|
newest_version_file_contents = f.read()
|
|
except Exception as e:
|
|
newest_version_file_contents = "Unable to read {}.\n".format(newest_file)
|
|
|
|
previous_version = request.args.get('previous_version')
|
|
try:
|
|
previous_file = watch['history'][previous_version]
|
|
except KeyError:
|
|
# Not present, use a default value, the second one in the sorted list.
|
|
previous_file = watch['history'][dates[1]]
|
|
|
|
try:
|
|
with open(previous_file, 'r') as f:
|
|
previous_version_file_contents = f.read()
|
|
except Exception as e:
|
|
previous_version_file_contents = "Unable to read {}.\n".format(previous_file)
|
|
|
|
|
|
screenshot_url = datastore.get_screenshot(uuid)
|
|
|
|
output = render_template("diff.html", watch_a=watch,
|
|
newest=newest_version_file_contents,
|
|
previous=previous_version_file_contents,
|
|
extra_stylesheets=extra_stylesheets,
|
|
versions=dates[1:],
|
|
uuid=uuid,
|
|
newest_version_timestamp=dates[0],
|
|
current_previous_version=str(previous_version),
|
|
current_diff_url=watch['url'],
|
|
extra_title=" - Diff - {}".format(watch['title'] if watch['title'] else watch['url']),
|
|
left_sticky=True,
|
|
screenshot=screenshot_url)
|
|
|
|
return output
|
|
|
|
@app.route("/preview/<string:uuid>", methods=['GET'])
|
|
@login_required
|
|
def preview_page(uuid):
|
|
content = []
|
|
ignored_line_numbers = []
|
|
trigger_line_numbers = []
|
|
|
|
# More for testing, possible to return the first/only
|
|
if uuid == 'first':
|
|
uuid = list(datastore.data['watching'].keys()).pop()
|
|
|
|
extra_stylesheets = [url_for('static_content', group='styles', filename='diff.css')]
|
|
|
|
try:
|
|
watch = datastore.data['watching'][uuid]
|
|
except KeyError:
|
|
flash("No history found for the specified link, bad link?", "error")
|
|
return redirect(url_for('index'))
|
|
|
|
if len(watch['history']):
|
|
timestamps = sorted(watch['history'].keys(), key=lambda x: int(x))
|
|
filename = watch['history'][timestamps[-1]]
|
|
try:
|
|
with open(filename, 'r') as f:
|
|
tmp = f.readlines()
|
|
|
|
# Get what needs to be highlighted
|
|
ignore_rules = watch.get('ignore_text', []) + datastore.data['settings']['application']['global_ignore_text']
|
|
|
|
# .readlines will keep the \n, but we will parse it here again, in the future tidy this up
|
|
ignored_line_numbers = html_tools.strip_ignore_text(content="".join(tmp),
|
|
wordlist=ignore_rules,
|
|
mode='line numbers'
|
|
)
|
|
|
|
trigger_line_numbers = html_tools.strip_ignore_text(content="".join(tmp),
|
|
wordlist=watch['trigger_text'],
|
|
mode='line numbers'
|
|
)
|
|
# Prepare the classes and lines used in the template
|
|
i=0
|
|
for l in tmp:
|
|
classes=[]
|
|
i+=1
|
|
if i in ignored_line_numbers:
|
|
classes.append('ignored')
|
|
if i in trigger_line_numbers:
|
|
classes.append('triggered')
|
|
content.append({'line': l, 'classes': ' '.join(classes)})
|
|
|
|
|
|
except Exception as e:
|
|
content.append({'line': "File doesnt exist or unable to read file {}".format(filename), 'classes': ''})
|
|
else:
|
|
content.append({'line': "No history found", 'classes': ''})
|
|
|
|
screenshot_url = datastore.get_screenshot(uuid)
|
|
output = render_template("preview.html",
|
|
content=content,
|
|
extra_stylesheets=extra_stylesheets,
|
|
ignored_line_numbers=ignored_line_numbers,
|
|
triggered_line_numbers=trigger_line_numbers,
|
|
current_diff_url=watch['url'],
|
|
screenshot=screenshot_url,
|
|
watch=watch,
|
|
uuid=uuid)
|
|
|
|
return output
|
|
|
|
@app.route("/settings/notification-logs", methods=['GET'])
|
|
@login_required
|
|
def notification_logs():
|
|
global notification_debug_log
|
|
output = render_template("notification-log.html",
|
|
logs=notification_debug_log if len(notification_debug_log) else ["No errors or warnings detected"])
|
|
|
|
return output
|
|
|
|
@app.route("/api/<string:uuid>/snapshot/current", methods=['GET'])
|
|
@login_required
|
|
def api_snapshot(uuid):
|
|
|
|
# More for testing, possible to return the first/only
|
|
if uuid == 'first':
|
|
uuid = list(datastore.data['watching'].keys()).pop()
|
|
|
|
try:
|
|
watch = datastore.data['watching'][uuid]
|
|
except KeyError:
|
|
return abort(400, "No history found for the specified link, bad link?")
|
|
|
|
newest = list(watch['history'].keys())[-1]
|
|
with open(watch['history'][newest], 'r') as f:
|
|
content = f.read()
|
|
|
|
resp = make_response(content)
|
|
resp.headers['Content-Type'] = 'text/plain'
|
|
return resp
|
|
|
|
@app.route("/favicon.ico", methods=['GET'])
|
|
def favicon():
|
|
return send_from_directory("static/images", path="favicon.ico")
|
|
|
|
# We're good but backups are even better!
|
|
@app.route("/backup", methods=['GET'])
|
|
@login_required
|
|
def get_backup():
|
|
|
|
import zipfile
|
|
from pathlib import Path
|
|
|
|
# Remove any existing backup file, for now we just keep one file
|
|
|
|
for previous_backup_filename in Path(datastore_o.datastore_path).rglob('changedetection-backup-*.zip'):
|
|
os.unlink(previous_backup_filename)
|
|
|
|
# create a ZipFile object
|
|
backupname = "changedetection-backup-{}.zip".format(int(time.time()))
|
|
|
|
# We only care about UUIDS from the current index file
|
|
uuids = list(datastore.data['watching'].keys())
|
|
backup_filepath = os.path.join(datastore_o.datastore_path, backupname)
|
|
|
|
with zipfile.ZipFile(backup_filepath, "w",
|
|
compression=zipfile.ZIP_DEFLATED,
|
|
compresslevel=8) as zipObj:
|
|
|
|
# Be sure we're written fresh
|
|
datastore.sync_to_json()
|
|
|
|
# Add the index
|
|
zipObj.write(os.path.join(datastore_o.datastore_path, "url-watches.json"), arcname="url-watches.json")
|
|
|
|
# Add the flask app secret
|
|
zipObj.write(os.path.join(datastore_o.datastore_path, "secret.txt"), arcname="secret.txt")
|
|
|
|
# Add any snapshot data we find, use the full path to access the file, but make the file 'relative' in the Zip.
|
|
for txt_file_path in Path(datastore_o.datastore_path).rglob('*.txt'):
|
|
parent_p = txt_file_path.parent
|
|
if parent_p.name in uuids:
|
|
zipObj.write(txt_file_path,
|
|
arcname=str(txt_file_path).replace(datastore_o.datastore_path, ''),
|
|
compress_type=zipfile.ZIP_DEFLATED,
|
|
compresslevel=8)
|
|
|
|
# Create a list file with just the URLs, so it's easier to port somewhere else in the future
|
|
list_file = "url-list.txt"
|
|
with open(os.path.join(datastore_o.datastore_path, list_file), "w") as f:
|
|
for uuid in datastore.data["watching"]:
|
|
url = datastore.data["watching"][uuid]["url"]
|
|
f.write("{}\r\n".format(url))
|
|
list_with_tags_file = "url-list-with-tags.txt"
|
|
with open(
|
|
os.path.join(datastore_o.datastore_path, list_with_tags_file), "w"
|
|
) as f:
|
|
for uuid in datastore.data["watching"]:
|
|
url = datastore.data["watching"][uuid]["url"]
|
|
tag = datastore.data["watching"][uuid]["tag"]
|
|
f.write("{} {}\r\n".format(url, tag))
|
|
|
|
# Add it to the Zip
|
|
zipObj.write(
|
|
os.path.join(datastore_o.datastore_path, list_file),
|
|
arcname=list_file,
|
|
compress_type=zipfile.ZIP_DEFLATED,
|
|
compresslevel=8,
|
|
)
|
|
zipObj.write(
|
|
os.path.join(datastore_o.datastore_path, list_with_tags_file),
|
|
arcname=list_with_tags_file,
|
|
compress_type=zipfile.ZIP_DEFLATED,
|
|
compresslevel=8,
|
|
)
|
|
|
|
# Send_from_directory needs to be the full absolute path
|
|
return send_from_directory(os.path.abspath(datastore_o.datastore_path), backupname, as_attachment=True)
|
|
|
|
@app.route("/static/<string:group>/<string:filename>", methods=['GET'])
|
|
def static_content(group, filename):
|
|
if group == 'screenshot':
|
|
|
|
from flask import make_response
|
|
|
|
# Could be sensitive, follow password requirements
|
|
if datastore.data['settings']['application']['password'] and not flask_login.current_user.is_authenticated:
|
|
abort(403)
|
|
|
|
# These files should be in our subdirectory
|
|
try:
|
|
# set nocache, set content-type
|
|
watch_dir = datastore_o.datastore_path + "/" + filename
|
|
response = make_response(send_from_directory(filename="last-screenshot.png", directory=watch_dir, path=watch_dir + "/last-screenshot.png"))
|
|
response.headers['Content-type'] = 'image/png'
|
|
response.headers['Cache-Control'] = 'no-cache, no-store, must-revalidate'
|
|
response.headers['Pragma'] = 'no-cache'
|
|
response.headers['Expires'] = 0
|
|
return response
|
|
|
|
except FileNotFoundError:
|
|
abort(404)
|
|
|
|
# These files should be in our subdirectory
|
|
try:
|
|
return send_from_directory("static/{}".format(group), path=filename)
|
|
except FileNotFoundError:
|
|
abort(404)
|
|
|
|
@app.route("/api/add", methods=['POST'])
|
|
@login_required
|
|
def api_watch_add():
|
|
from changedetectionio import forms
|
|
form = forms.quickWatchForm(request.form)
|
|
|
|
if not form.validate():
|
|
flash("Error")
|
|
return redirect(url_for('index'))
|
|
|
|
url = request.form.get('url').strip()
|
|
if datastore.url_exists(url):
|
|
flash('The URL {} already exists'.format(url), "error")
|
|
return redirect(url_for('index'))
|
|
|
|
# @todo add_watch should throw a custom Exception for validation etc
|
|
new_uuid = datastore.add_watch(url=url, tag=request.form.get('tag').strip())
|
|
if new_uuid:
|
|
# Straight into the queue.
|
|
update_q.put(new_uuid)
|
|
flash("Watch added.")
|
|
|
|
return redirect(url_for('index'))
|
|
|
|
|
|
|
|
@app.route("/api/delete", methods=['GET'])
|
|
@login_required
|
|
def api_delete():
|
|
uuid = request.args.get('uuid')
|
|
|
|
if uuid != 'all' and not uuid in datastore.data['watching'].keys():
|
|
flash('The watch by UUID {} does not exist.'.format(uuid), 'error')
|
|
return redirect(url_for('index'))
|
|
|
|
# More for testing, possible to return the first/only
|
|
if uuid == 'first':
|
|
uuid = list(datastore.data['watching'].keys()).pop()
|
|
datastore.delete(uuid)
|
|
flash('Deleted.')
|
|
|
|
return redirect(url_for('index'))
|
|
|
|
@app.route("/api/clone", methods=['GET'])
|
|
@login_required
|
|
def api_clone():
|
|
uuid = request.args.get('uuid')
|
|
# More for testing, possible to return the first/only
|
|
if uuid == 'first':
|
|
uuid = list(datastore.data['watching'].keys()).pop()
|
|
|
|
new_uuid = datastore.clone(uuid)
|
|
update_q.put(new_uuid)
|
|
flash('Cloned.')
|
|
|
|
return redirect(url_for('index'))
|
|
|
|
@app.route("/api/checknow", methods=['GET'])
|
|
@login_required
|
|
def api_watch_checknow():
|
|
|
|
tag = request.args.get('tag')
|
|
uuid = request.args.get('uuid')
|
|
i = 0
|
|
|
|
running_uuids = []
|
|
for t in running_update_threads:
|
|
running_uuids.append(t.current_uuid)
|
|
|
|
# @todo check thread is running and skip
|
|
|
|
if uuid:
|
|
if uuid not in running_uuids:
|
|
update_q.put(uuid)
|
|
i = 1
|
|
|
|
elif tag != None:
|
|
# Items that have this current tag
|
|
for watch_uuid, watch in datastore.data['watching'].items():
|
|
if (tag != None and tag in watch['tag']):
|
|
if watch_uuid not in running_uuids and not datastore.data['watching'][watch_uuid]['paused']:
|
|
update_q.put(watch_uuid)
|
|
i += 1
|
|
|
|
else:
|
|
# No tag, no uuid, add everything.
|
|
for watch_uuid, watch in datastore.data['watching'].items():
|
|
|
|
if watch_uuid not in running_uuids and not datastore.data['watching'][watch_uuid]['paused']:
|
|
update_q.put(watch_uuid)
|
|
i += 1
|
|
flash("{} watches are queued for rechecking.".format(i))
|
|
return redirect(url_for('index', tag=tag))
|
|
|
|
@app.route("/api/share-url", methods=['GET'])
|
|
@login_required
|
|
def api_share_put_watch():
|
|
"""Given a watch UUID, upload the info and return a share-link
|
|
the share-link can be imported/added"""
|
|
import requests
|
|
import json
|
|
tag = request.args.get('tag')
|
|
uuid = request.args.get('uuid')
|
|
|
|
# more for testing
|
|
if uuid == 'first':
|
|
uuid = list(datastore.data['watching'].keys()).pop()
|
|
|
|
# copy it to memory as trim off what we dont need (history)
|
|
watch = deepcopy(datastore.data['watching'][uuid])
|
|
if (watch.get('history')):
|
|
del (watch['history'])
|
|
|
|
# for safety/privacy
|
|
for k in list(watch.keys()):
|
|
if k.startswith('notification_'):
|
|
del watch[k]
|
|
|
|
for r in['uuid', 'last_checked', 'last_changed']:
|
|
if watch.get(r):
|
|
del (watch[r])
|
|
|
|
# Add the global stuff which may have an impact
|
|
watch['ignore_text'] += datastore.data['settings']['application']['global_ignore_text']
|
|
watch['subtractive_selectors'] += datastore.data['settings']['application']['global_subtractive_selectors']
|
|
|
|
watch_json = json.dumps(watch)
|
|
|
|
try:
|
|
r = requests.request(method="POST",
|
|
data={'watch': watch_json},
|
|
url="https://changedetection.io/share/share",
|
|
headers={'App-Guid': datastore.data['app_guid']})
|
|
res = r.json()
|
|
|
|
session['share-link'] = "https://changedetection.io/share/{}".format(res['share_key'])
|
|
|
|
|
|
except Exception as e:
|
|
flash("Could not share, something went wrong while communicating with the share server.", 'error')
|
|
|
|
# https://changedetection.io/share/VrMv05wpXyQa
|
|
# in the browser - should give you a nice info page - wtf
|
|
# paste in etc
|
|
return redirect(url_for('index'))
|
|
|
|
|
|
# @todo handle ctrl break
|
|
ticker_thread = threading.Thread(target=ticker_thread_check_time_launch_checks).start()
|
|
|
|
threading.Thread(target=notification_runner).start()
|
|
|
|
# Check for new release version, but not when running in test/build
|
|
if not os.getenv("GITHUB_REF", False):
|
|
threading.Thread(target=check_for_new_version).start()
|
|
|
|
return app
|
|
|
|
|
|
# Check for new version and anonymous stats
|
|
def check_for_new_version():
|
|
import requests
|
|
import urllib3
|
|
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
|
|
|
|
while not app.config.exit.is_set():
|
|
try:
|
|
r = requests.post("https://changedetection.io/check-ver.php",
|
|
data={'version': __version__,
|
|
'app_guid': datastore.data['app_guid'],
|
|
'watch_count': len(datastore.data['watching'])
|
|
},
|
|
|
|
verify=False)
|
|
except:
|
|
pass
|
|
|
|
try:
|
|
if "new_version" in r.text:
|
|
app.config['NEW_VERSION_AVAILABLE'] = True
|
|
except:
|
|
pass
|
|
|
|
# Check daily
|
|
app.config.exit.wait(86400)
|
|
|
|
def notification_runner():
|
|
global notification_debug_log
|
|
while not app.config.exit.is_set():
|
|
try:
|
|
# At the moment only one thread runs (single runner)
|
|
n_object = notification_q.get(block=False)
|
|
except queue.Empty:
|
|
time.sleep(1)
|
|
|
|
else:
|
|
# Process notifications
|
|
try:
|
|
from changedetectionio import notification
|
|
notification.process_notification(n_object, datastore)
|
|
|
|
except Exception as e:
|
|
print("Watch URL: {} Error {}".format(n_object['watch_url'], str(e)))
|
|
|
|
# UUID wont be present when we submit a 'test' from the global settings
|
|
if 'uuid' in n_object:
|
|
datastore.update_watch(uuid=n_object['uuid'],
|
|
update_obj={'last_notification_error': "Notification error detected, please see logs."})
|
|
|
|
log_lines = str(e).splitlines()
|
|
notification_debug_log += log_lines
|
|
|
|
# Trim the log length
|
|
notification_debug_log = notification_debug_log[-100:]
|
|
|
|
|
|
# Thread runner to check every minute, look for new watches to feed into the Queue.
|
|
def ticker_thread_check_time_launch_checks():
|
|
from changedetectionio import update_worker
|
|
|
|
# Spin up Workers that do the fetching
|
|
# Can be overriden by ENV or use the default settings
|
|
n_workers = int(os.getenv("FETCH_WORKERS", datastore.data['settings']['requests']['workers']))
|
|
for _ in range(n_workers):
|
|
new_worker = update_worker.update_worker(update_q, notification_q, app, datastore)
|
|
running_update_threads.append(new_worker)
|
|
new_worker.start()
|
|
|
|
while not app.config.exit.is_set():
|
|
|
|
# Get a list of watches by UUID that are currently fetching data
|
|
running_uuids = []
|
|
for t in running_update_threads:
|
|
if t.current_uuid:
|
|
running_uuids.append(t.current_uuid)
|
|
|
|
# Re #232 - Deepcopy the data incase it changes while we're iterating through it all
|
|
while True:
|
|
try:
|
|
copied_datastore = deepcopy(datastore)
|
|
except RuntimeError as e:
|
|
# RuntimeError: dictionary changed size during iteration
|
|
time.sleep(0.1)
|
|
else:
|
|
break
|
|
|
|
# Re #438 - Don't place more watches in the queue to be checked if the queue is already large
|
|
while update_q.qsize() >= 2000:
|
|
time.sleep(1)
|
|
|
|
# Check for watches outside of the time threshold to put in the thread queue.
|
|
now = time.time()
|
|
|
|
recheck_time_minimum_seconds = int(os.getenv('MINIMUM_SECONDS_RECHECK_TIME', 60))
|
|
recheck_time_system_seconds = datastore.threshold_seconds
|
|
|
|
for uuid, watch in copied_datastore.data['watching'].items():
|
|
|
|
# No need todo further processing if it's paused
|
|
if watch['paused']:
|
|
continue
|
|
|
|
# If they supplied an individual entry minutes to threshold.
|
|
threshold = now
|
|
watch_threshold_seconds = watch.threshold_seconds()
|
|
if watch_threshold_seconds:
|
|
threshold -= watch_threshold_seconds
|
|
else:
|
|
threshold -= recheck_time_system_seconds
|
|
|
|
# Yeah, put it in the queue, it's more than time
|
|
if watch['last_checked'] <= max(threshold, recheck_time_minimum_seconds):
|
|
if not uuid in running_uuids and uuid not in update_q.queue:
|
|
update_q.put(uuid)
|
|
|
|
# Wait a few seconds before checking the list again
|
|
time.sleep(3)
|
|
|
|
# Should be low so we can break this out in testing
|
|
app.config.exit.wait(1) |