Leigh Morresi
4 years ago
parent
426b09b7e1
commit
9f964b6d3f
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#!/usr/bin/python3
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# Launch as a eventlet.wsgi server instance.
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import getopt
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import sys
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import eventlet
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import eventlet.wsgi
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import backend
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def main(argv):
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ssl_mode = False
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port = 5000
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datastore_path = "./datastore"
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try:
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opts, args = getopt.getopt(argv, "sd:p:", "purge")
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except getopt.GetoptError:
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print('backend.py -s SSL enable -p [port]')
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sys.exit(2)
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for opt, arg in opts:
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# if opt == '--purge':
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# Remove history, the actual files you need to delete manually.
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# for uuid, watch in datastore.data['watching'].items():
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# watch.update({'history': {}, 'last_checked': 0, 'last_changed': 0, 'previous_md5': None})
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if opt == '-s':
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ssl_mode = True
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if opt == '-p':
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port = arg
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if opt == '-d':
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datastore_path = arg
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# @todo finalise SSL config, but this should get you in the right direction if you need it.
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app = backend.changedetection_app({'datastore_path':datastore_path})
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if ssl_mode:
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eventlet.wsgi.server(eventlet.wrap_ssl(eventlet.listen(('', port)),
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certfile='cert.pem',
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keyfile='privkey.pem',
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server_side=True), app)
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else:
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eventlet.wsgi.server(eventlet.listen(('', port)), backend.changedetection_app())
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if __name__ == '__main__':
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main(sys.argv)
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#print (__name__)
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@ -0,0 +1,490 @@
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#!/usr/bin/python3
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# @todo logging
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# @todo sort by last_changed
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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 maybe a button to reset all 'last-changed'.. so you can see it clearly when something happens since your last visit
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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 make tables responsive!
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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 json
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import time
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import os
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import timeago
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import threading
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import queue
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from flask import Flask, render_template, request, send_file, send_from_directory, safe_join, abort, redirect, url_for
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# Local
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from backend import store
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running_update_threads = []
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ticker_thread = None
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messages = []
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extra_stylesheets = []
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update_q = queue.Queue()
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app = Flask(__name__, static_url_path="/var/www/change-detection/backen/static")
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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['STOP_THREADS']= False
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# Disables caching of the templates
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app.config['TEMPLATES_AUTO_RELOAD'] = True
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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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def changedetection_app(config=None):
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# Hmm
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app.config.update(dict(DEBUG=True))
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app.config.update(config or {})
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datastore = store.ChangeDetectionStore(datastore_path=app.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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#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("/", methods=['GET'])
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def main_page():
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global messages
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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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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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output = render_template("watch-overview.html",
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watches=sorted_watches,
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messages=messages,
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tags=existing_tags,
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active_tag=limit_tag)
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# Show messages but once.
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messages = []
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return output
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@app.route("/scrub", methods=['GET', 'POST'])
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def scrub_page():
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from pathlib import Path
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global messages
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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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for txt_file_path in Path(app.config['datastore_path']).rglob('*.txt'):
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os.unlink(txt_file_path)
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for uuid, watch in datastore.data['watching'].items():
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watch['last_checked'] = 0
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watch['last_changed'] = 0
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watch['previous_md5'] = None
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watch['history'] = {}
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datastore.needs_write = True
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messages.append({'class': 'ok', 'message': 'Cleaned all version history.'})
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else:
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messages.append({'class': 'error', 'message': 'Wrong confirm text.'})
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return redirect(url_for('main_page'))
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return render_template("scrub.html")
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@app.route("/edit", methods=['GET', 'POST'])
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def edit_page():
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global messages
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import validators
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if request.method == 'POST':
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uuid = request.args.get('uuid')
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url = request.form.get('url').strip()
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tag = request.form.get('tag').strip()
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form_headers = request.form.get('headers').strip().split("\n")
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extra_headers = {}
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if form_headers:
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for header in form_headers:
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if len(header):
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parts = header.split(':', 1)
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extra_headers.update({parts[0].strip(): parts[1].strip()})
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validators.url(url) # @todo switch to prop/attr/observer
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datastore.data['watching'][uuid].update({'url': url,
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'tag': tag,
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'headers': extra_headers})
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datastore.needs_write = True
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messages.append({'class': 'ok', 'message': 'Updated watch.'})
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return redirect(url_for('main_page'))
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else:
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uuid = request.args.get('uuid')
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output = render_template("edit.html", uuid=uuid, watch=datastore.data['watching'][uuid], messages=messages)
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return output
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@app.route("/settings", methods=['GET', "POST"])
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def settings_page():
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global messages
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if request.method == 'POST':
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try:
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minutes = int(request.values.get('minutes').strip())
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except ValueError:
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messages.append({'class': 'error', 'message': "Invalid value given, use an integer."})
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else:
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if minutes >= 5 and minutes <= 600:
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datastore.data['settings']['requests']['minutes_between_check'] = minutes
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datastore.needs_write = True
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messages.append({'class': 'ok', 'message': "Updated"})
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else:
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messages.append({'class': 'error', 'message': "Must be equal to or greater than 5 and less than 600 minutes"})
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output = render_template("settings.html", messages=messages, minutes=datastore.data['settings']['requests']['minutes_between_check'])
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messages =[]
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return output
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@app.route("/import", methods=['GET', "POST"])
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def import_page():
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import validators
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global messages
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remaining_urls=[]
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good = 0
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if request.method == 'POST':
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urls = request.values.get('urls').split("\n")
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for url in urls:
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url = url.strip()
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if len(url) and validators.url(url):
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datastore.add_watch(url=url.strip(), tag="")
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good += 1
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else:
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if len(url):
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remaining_urls.append(url)
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messages.append({'class': 'ok', 'message': "{} Imported, {} Skipped.".format(good, len(remaining_urls))})
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output = render_template("import.html",
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messages=messages,
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remaining="\n".join(remaining_urls)
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)
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messages = []
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return output
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@app.route("/diff/<string:uuid>", methods=['GET'])
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def diff_history_page(uuid):
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global messages
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extra_stylesheets=['/static/css/diff.css']
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watch = datastore.data['watching'][uuid]
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dates = list(watch['history'].keys())
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# Convert to int, sort and back to str again
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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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# Save the current newest history as the most recently viewed
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datastore.set_last_viewed(uuid, dates[0])
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newest_file = watch['history'][dates[0]]
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with open(newest_file, 'r') as f:
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newest_version_file_contents = f.read()
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previous_version = request.args.get('previous_version')
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try:
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previous_file = watch['history'][previous_version]
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except KeyError:
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# Not present, use a default value, the second one in the sorted list.
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previous_file = watch['history'][dates[1]]
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with open(previous_file, 'r') as f:
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previous_version_file_contents = f.read()
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output = render_template("diff.html", watch_a=watch,
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messages=messages,
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newest=newest_version_file_contents,
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previous=previous_version_file_contents,
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extra_stylesheets=extra_stylesheets,
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versions=dates[1:],
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newest_version_timestamp=dates[0],
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current_previous_version=str(previous_version),
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current_diff_url=watch['url'])
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return output
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@app.route("/favicon.ico", methods=['GET'])
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def favicon():
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return send_from_directory("/app/static/images", filename="favicon.ico")
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# We're good but backups are even better!
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@app.route("/backup", methods=['GET'])
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def get_backup():
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import zipfile
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from pathlib import Path
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import zlib
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# create a ZipFile object
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backupname = "changedetection-backup-{}.zip".format(int(time.time()))
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# We only care about UUIDS from the current index file
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uuids = list(datastore.data['watching'].keys())
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with zipfile.ZipFile(os.path.join(app.config['datastore_path'], backupname), 'w', compression=zipfile.ZIP_DEFLATED,
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compresslevel=6) as zipObj:
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# Be sure we're written fresh
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datastore.sync_to_json()
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# Add the index
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zipObj.write(os.path.join(app.config['datastore_path'], "url-watches.json"))
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# Add any snapshot data we find
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for txt_file_path in Path(app.config['datastore_path']).rglob('*.txt'):
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parent_p = txt_file_path.parent
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if parent_p.name in uuids:
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zipObj.write(txt_file_path)
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return send_file(os.path.join(app.config['datastore_path'], backupname),
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as_attachment=True,
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mimetype="application/zip",
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attachment_filename=backupname)
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# A few self sanity checks, mostly for developer/bug check
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@app.route("/self-check", methods=['GET'])
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def selfcheck():
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output = "All fine"
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# In earlier versions before a single threaded write of the JSON store, sometimes histories could get mixed.
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# Could also maybe affect people who manually fiddle with their JSON store?
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for uuid, watch in datastore.data['watching'].items():
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for timestamp, path in watch['history'].items():
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# Each history snapshot should include a full path, which contains the {uuid}
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if not uuid in path:
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output = "Something weird in {}, suspected incorrect snapshot path.".format(uuid)
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return output
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@app.route("/static/<string:group>/<string:filename>", methods=['GET'])
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def static_content(group, filename):
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# These files should be in our subdirectory
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full_path = os.path.realpath(__file__)
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p = os.path.dirname(full_path)
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try:
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return send_from_directory("{}/static/{}".format(p, group), filename=filename)
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except FileNotFoundError:
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abort(404)
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@app.route("/api/add", methods=['POST'])
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def api_watch_add():
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global messages
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# @todo add_watch should throw a custom Exception for validation etc
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new_uuid = datastore.add_watch(url=request.form.get('url').strip(), tag=request.form.get('tag').strip())
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# Straight into the queue.
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update_q.put(new_uuid)
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messages.append({'class': 'ok', 'message': 'Watch added.'})
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return redirect(url_for('main_page'))
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@app.route("/api/delete", methods=['GET'])
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def api_delete():
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global messages
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uuid = request.args.get('uuid')
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datastore.delete(uuid)
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messages.append({'class': 'ok', 'message': 'Deleted.'})
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return redirect(url_for('main_page'))
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@app.route("/api/checknow", methods=['GET'])
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def api_watch_checknow():
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global messages
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tag = request.args.get('tag')
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uuid = request.args.get('uuid')
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i=0
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if uuid:
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update_q.put(uuid)
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i = 1
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elif tag != None:
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for watch_uuid, watch in datastore.data['watching'].items():
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if (tag != None and tag in watch['tag']):
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i += 1
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update_q.put(watch_uuid)
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else:
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# No tag, no uuid, add everything.
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for watch_uuid, watch in datastore.data['watching'].items():
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i += 1
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update_q.put(watch_uuid)
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messages.append({'class': 'ok', 'message': "{} watches are rechecking.".format(i)})
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return redirect(url_for('main_page', tag=tag))
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# @todo handle ctrl break
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ticker_thread = threading.Thread(target=ticker_thread_check_time_launch_checks).start()
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save_data_thread = threading.Thread(target=save_datastore).start()
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return app
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# Requests for checking on the site use a pool of thread Workers managed by a Queue.
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class Worker(threading.Thread):
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current_uuid = None
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def __init__(self, q, *args, **kwargs):
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self.q = q
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super().__init__(*args, **kwargs)
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def run(self):
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from backend import fetch_site_status
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update_handler = fetch_site_status.perform_site_check(datastore=datastore)
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while True:
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try:
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uuid = self.q.get(block=True, timeout=1) # Blocking
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except queue.Empty:
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# We have a chance to kill this thread that needs to monitor for new jobs..
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if app.config['STOP_THREADS']:
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return
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else:
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self.current_uuid = uuid
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if uuid in list(datastore.data['watching'].keys()):
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try:
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result = update_handler.run(uuid)
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except PermissionError as s:
|
||||
print ("File permission error updating", uuid,str(s))
|
||||
else:
|
||||
if result:
|
||||
datastore.update_watch(uuid=uuid, update_obj=result)
|
||||
|
||||
self.current_uuid = None # Done
|
||||
self.q.task_done()
|
||||
|
||||
|
||||
# Thread runner to check every minute, look for new watches to feed into the Queue.
|
||||
def ticker_thread_check_time_launch_checks():
|
||||
|
||||
# Spin up Workers.
|
||||
for _ in range(datastore.data['settings']['requests']['workers']):
|
||||
new_worker = Worker(update_q)
|
||||
running_update_threads.append(new_worker)
|
||||
new_worker.start()
|
||||
|
||||
# Every minute check for new UUIDs to follow up on
|
||||
while True:
|
||||
minutes = datastore.data['settings']['requests']['minutes_between_check']
|
||||
for uuid, watch in datastore.data['watching'].items():
|
||||
if watch['last_checked'] <= time.time() - (minutes * 60):
|
||||
update_q.put(uuid)
|
||||
|
||||
if app.config['STOP_THREADS']:
|
||||
return
|
||||
time.sleep(1)
|
||||
|
||||
|
||||
# Thread runner, this helps with thread/write issues when there are many operations that want to update the JSON
|
||||
# by just running periodically in one thread, according to python, dict updates are threadsafe.
|
||||
def save_datastore():
|
||||
|
||||
global stop_threads
|
||||
|
||||
while True:
|
||||
if stop_threads:
|
||||
return
|
||||
if datastore.needs_write:
|
||||
datastore.sync_to_json()
|
||||
time.sleep(1)
|
||||
|
||||
@ -1,501 +0,0 @@
|
||||
#!/usr/bin/python3
|
||||
|
||||
|
||||
# @todo logging
|
||||
# @todo sort by last_changed
|
||||
# @todo extra options for url like , verify=False etc.
|
||||
# @todo enable https://urllib3.readthedocs.io/en/latest/user-guide.html#ssl as option?
|
||||
# @todo maybe a button to reset all 'last-changed'.. so you can see it clearly when something happens since your last visit
|
||||
# @todo option for interval day/6 hour/etc
|
||||
# @todo on change detected, config for calling some API
|
||||
# @todo make tables responsive!
|
||||
# @todo fetch title into json
|
||||
# https://distill.io/features
|
||||
# proxy per check
|
||||
#i
|
||||
import json
|
||||
import eventlet
|
||||
import eventlet.wsgi
|
||||
|
||||
import time
|
||||
import os
|
||||
import getopt
|
||||
import sys
|
||||
import datetime
|
||||
import timeago
|
||||
|
||||
import threading
|
||||
import queue
|
||||
|
||||
|
||||
from flask import Flask, render_template, request, send_file, send_from_directory, safe_join, abort, redirect, url_for
|
||||
|
||||
|
||||
# Local
|
||||
import store
|
||||
running_update_threads = []
|
||||
ticker_thread = None
|
||||
|
||||
datastore = store.ChangeDetectionStore()
|
||||
messages = []
|
||||
extra_stylesheets = []
|
||||
|
||||
update_q = queue.Queue()
|
||||
|
||||
|
||||
app = Flask(__name__, static_url_path='/static')
|
||||
app.config['STATIC_RESOURCES'] = "/app/static"
|
||||
app.config['SEND_FILE_MAX_AGE_DEFAULT'] = 0
|
||||
|
||||
# app.config['SECRET_KEY'] = 'secret!'
|
||||
|
||||
# Disables caching of the templates
|
||||
app.config['TEMPLATES_AUTO_RELOAD'] = True
|
||||
|
||||
|
||||
# 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
|
||||
# running or something similar.
|
||||
@app.template_filter('format_last_checked_time')
|
||||
def _jinja2_filter_datetime(watch_obj, format="%Y-%m-%d %H:%M:%S"):
|
||||
# Worker thread tells us which UUID it is currently processing.
|
||||
for t in running_update_threads:
|
||||
if t.current_uuid == watch_obj['uuid']:
|
||||
return "Checking now.."
|
||||
|
||||
if watch_obj['last_checked'] == 0:
|
||||
return 'Not yet'
|
||||
|
||||
return timeago.format(int(watch_obj['last_checked']), time.time())
|
||||
|
||||
|
||||
# @app.context_processor
|
||||
# def timeago():
|
||||
# def _timeago(lower_time, now):
|
||||
# return timeago.format(lower_time, now)
|
||||
# return dict(timeago=_timeago)
|
||||
|
||||
@app.template_filter('format_timestamp_timeago')
|
||||
def _jinja2_filter_datetimestamp(timestamp, format="%Y-%m-%d %H:%M:%S"):
|
||||
return timeago.format(timestamp, time.time())
|
||||
# return timeago.format(timestamp, time.time())
|
||||
# return datetime.datetime.utcfromtimestamp(timestamp).strftime(format)
|
||||
|
||||
|
||||
@app.route("/", methods=['GET'])
|
||||
def main_page():
|
||||
global messages
|
||||
|
||||
limit_tag = request.args.get('tag')
|
||||
|
||||
# Sort by last_changed and add the uuid which is usually the key..
|
||||
sorted_watches = []
|
||||
for uuid, watch in datastore.data['watching'].items():
|
||||
|
||||
|
||||
if limit_tag != None:
|
||||
# Support for comma separated list of tags.
|
||||
for tag_in_watch in watch['tag'].split(','):
|
||||
tag_in_watch = tag_in_watch.strip()
|
||||
if tag_in_watch == limit_tag:
|
||||
watch['uuid'] = uuid
|
||||
sorted_watches.append(watch)
|
||||
|
||||
else:
|
||||
watch['uuid'] = uuid
|
||||
sorted_watches.append(watch)
|
||||
|
||||
|
||||
sorted_watches.sort(key=lambda x: x['last_changed'], reverse=True)
|
||||
|
||||
existing_tags = datastore.get_all_tags()
|
||||
output = render_template("watch-overview.html",
|
||||
watches=sorted_watches,
|
||||
messages=messages,
|
||||
tags=existing_tags,
|
||||
active_tag=limit_tag)
|
||||
|
||||
# Show messages but once.
|
||||
messages = []
|
||||
return output
|
||||
|
||||
@app.route("/scrub", methods=['GET', 'POST'])
|
||||
def scrub_page():
|
||||
from pathlib import Path
|
||||
|
||||
global messages
|
||||
|
||||
if request.method == 'POST':
|
||||
confirmtext = request.form.get('confirmtext')
|
||||
|
||||
if confirmtext == 'scrub':
|
||||
|
||||
for txt_file_path in Path('/datastore').rglob('*.txt'):
|
||||
os.unlink(txt_file_path)
|
||||
|
||||
for uuid, watch in datastore.data['watching'].items():
|
||||
watch['last_checked'] = 0
|
||||
watch['last_changed'] = 0
|
||||
watch['previous_md5'] = None
|
||||
watch['history'] = {}
|
||||
|
||||
datastore.needs_write = True
|
||||
messages.append({'class': 'ok', 'message': 'Cleaned all version history.'})
|
||||
else:
|
||||
messages.append({'class': 'error', 'message': 'Wrong confirm text.'})
|
||||
|
||||
return redirect(url_for('main_page'))
|
||||
|
||||
return render_template("scrub.html")
|
||||
|
||||
|
||||
@app.route("/edit", methods=['GET', 'POST'])
|
||||
def edit_page():
|
||||
global messages
|
||||
import validators
|
||||
|
||||
if request.method == 'POST':
|
||||
uuid = request.args.get('uuid')
|
||||
|
||||
url = request.form.get('url').strip()
|
||||
tag = request.form.get('tag').strip()
|
||||
|
||||
form_headers = request.form.get('headers').strip().split("\n")
|
||||
extra_headers = {}
|
||||
if form_headers:
|
||||
for header in form_headers:
|
||||
if len(header):
|
||||
parts = header.split(':', 1)
|
||||
extra_headers.update({parts[0].strip(): parts[1].strip()})
|
||||
|
||||
validators.url(url) # @todo switch to prop/attr/observer
|
||||
datastore.data['watching'][uuid].update({'url': url,
|
||||
'tag': tag,
|
||||
'headers': extra_headers})
|
||||
datastore.needs_write = True
|
||||
|
||||
messages.append({'class': 'ok', 'message': 'Updated watch.'})
|
||||
|
||||
return redirect(url_for('main_page'))
|
||||
|
||||
else:
|
||||
|
||||
uuid = request.args.get('uuid')
|
||||
output = render_template("edit.html", uuid=uuid, watch=datastore.data['watching'][uuid], messages=messages)
|
||||
|
||||
return output
|
||||
|
||||
|
||||
@app.route("/settings", methods=['GET', "POST"])
|
||||
def settings_page():
|
||||
global messages
|
||||
if request.method == 'POST':
|
||||
try:
|
||||
minutes = int(request.values.get('minutes').strip())
|
||||
except ValueError:
|
||||
messages.append({'class': 'error', 'message': "Invalid value given, use an integer."})
|
||||
|
||||
else:
|
||||
if minutes >= 5 and minutes <= 600:
|
||||
datastore.data['settings']['requests']['minutes_between_check'] = minutes
|
||||
datastore.needs_write = True
|
||||
|
||||
messages.append({'class': 'ok', 'message': "Updated"})
|
||||
else:
|
||||
messages.append({'class': 'error', 'message': "Must be equal to or greater than 5 and less than 600 minutes"})
|
||||
|
||||
output = render_template("settings.html", messages=messages, minutes=datastore.data['settings']['requests']['minutes_between_check'])
|
||||
messages =[]
|
||||
|
||||
return output
|
||||
|
||||
@app.route("/import", methods=['GET', "POST"])
|
||||
def import_page():
|
||||
import validators
|
||||
global messages
|
||||
remaining_urls=[]
|
||||
|
||||
good = 0
|
||||
|
||||
if request.method == 'POST':
|
||||
urls = request.values.get('urls').split("\n")
|
||||
for url in urls:
|
||||
url = url.strip()
|
||||
if len(url) and validators.url(url):
|
||||
datastore.add_watch(url=url.strip(), tag="")
|
||||
good += 1
|
||||
else:
|
||||
if len(url):
|
||||
remaining_urls.append(url)
|
||||
|
||||
messages.append({'class': 'ok', 'message': "{} Imported, {} Skipped.".format(good, len(remaining_urls))})
|
||||
|
||||
output = render_template("import.html",
|
||||
messages=messages,
|
||||
remaining="\n".join(remaining_urls)
|
||||
)
|
||||
messages = []
|
||||
return output
|
||||
|
||||
|
||||
@app.route("/diff/<string:uuid>", methods=['GET'])
|
||||
def diff_history_page(uuid):
|
||||
global messages
|
||||
|
||||
extra_stylesheets=['/static/css/diff.css']
|
||||
|
||||
watch = datastore.data['watching'][uuid]
|
||||
|
||||
dates = list(watch['history'].keys())
|
||||
# Convert to int, sort and back to str again
|
||||
dates = [int(i) for i in dates]
|
||||
dates.sort(reverse=True)
|
||||
dates = [str(i) for i in dates]
|
||||
|
||||
# Save the current newest history as the most recently viewed
|
||||
datastore.set_last_viewed(uuid, dates[0])
|
||||
|
||||
newest_file = watch['history'][dates[0]]
|
||||
with open(newest_file, 'r') as f:
|
||||
newest_version_file_contents = f.read()
|
||||
|
||||
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]]
|
||||
|
||||
with open(previous_file, 'r') as f:
|
||||
previous_version_file_contents = f.read()
|
||||
|
||||
output = render_template("diff.html", watch_a=watch,
|
||||
messages=messages,
|
||||
newest=newest_version_file_contents,
|
||||
previous=previous_version_file_contents,
|
||||
extra_stylesheets=extra_stylesheets,
|
||||
versions=dates[1:],
|
||||
newest_version_timestamp=dates[0],
|
||||
current_previous_version=str(previous_version),
|
||||
current_diff_url=watch['url'])
|
||||
|
||||
return output
|
||||
|
||||
@app.route("/favicon.ico", methods=['GET'])
|
||||
def favicon():
|
||||
return send_from_directory("/app/static/images", filename="favicon.ico")
|
||||
|
||||
|
||||
# We're good but backups are even better!
|
||||
@app.route("/backup", methods=['GET'])
|
||||
def get_backup():
|
||||
import zipfile
|
||||
from pathlib import Path
|
||||
import zlib
|
||||
|
||||
# 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())
|
||||
|
||||
with zipfile.ZipFile(os.path.join("/datastore", backupname), 'w', compression=zipfile.ZIP_DEFLATED,
|
||||
compresslevel=6) as zipObj:
|
||||
|
||||
# Be sure we're written fresh
|
||||
datastore.sync_to_json()
|
||||
|
||||
# Add the index
|
||||
zipObj.write(os.path.join("/datastore", "url-watches.json"))
|
||||
# Add any snapshot data we find
|
||||
for txt_file_path in Path('/datastore').rglob('*.txt'):
|
||||
parent_p = txt_file_path.parent
|
||||
if parent_p.name in uuids:
|
||||
zipObj.write(txt_file_path)
|
||||
|
||||
return send_file(os.path.join("/datastore", backupname),
|
||||
as_attachment=True,
|
||||
mimetype="application/zip",
|
||||
attachment_filename=backupname)
|
||||
|
||||
|
||||
|
||||
# A few self sanity checks, mostly for developer/bug check
|
||||
@app.route("/self-check", methods=['GET'])
|
||||
def selfcheck():
|
||||
output = "All fine"
|
||||
# In earlier versions before a single threaded write of the JSON store, sometimes histories could get mixed.
|
||||
# Could also maybe affect people who manually fiddle with their JSON store?
|
||||
for uuid, watch in datastore.data['watching'].items():
|
||||
for timestamp, path in watch['history'].items():
|
||||
# Each history snapshot should include a full path, which contains the {uuid}
|
||||
if not uuid in path:
|
||||
output = "Something weird in {}, suspected incorrect snapshot path.".format(uuid)
|
||||
|
||||
return output
|
||||
|
||||
@app.route("/static/<string:group>/<string:filename>", methods=['GET'])
|
||||
def static_content(group, filename):
|
||||
try:
|
||||
return send_from_directory("/app/static/{}".format(group), filename=filename)
|
||||
except FileNotFoundError:
|
||||
abort(404)
|
||||
|
||||
|
||||
@app.route("/api/add", methods=['POST'])
|
||||
def api_watch_add():
|
||||
global messages
|
||||
|
||||
# @todo add_watch should throw a custom Exception for validation etc
|
||||
new_uuid = datastore.add_watch(url=request.form.get('url').strip(), tag=request.form.get('tag').strip())
|
||||
# Straight into the queue.
|
||||
update_q.put(new_uuid)
|
||||
|
||||
messages.append({'class': 'ok', 'message': 'Watch added.'})
|
||||
return redirect(url_for('main_page'))
|
||||
|
||||
|
||||
@app.route("/api/delete", methods=['GET'])
|
||||
def api_delete():
|
||||
global messages
|
||||
uuid = request.args.get('uuid')
|
||||
datastore.delete(uuid)
|
||||
messages.append({'class': 'ok', 'message': 'Deleted.'})
|
||||
|
||||
return redirect(url_for('main_page'))
|
||||
|
||||
|
||||
@app.route("/api/checknow", methods=['GET'])
|
||||
def api_watch_checknow():
|
||||
global messages
|
||||
|
||||
tag = request.args.get('tag')
|
||||
uuid = request.args.get('uuid')
|
||||
i=0
|
||||
|
||||
if uuid:
|
||||
update_q.put(uuid)
|
||||
i = 1
|
||||
|
||||
elif tag != None:
|
||||
for watch_uuid, watch in datastore.data['watching'].items():
|
||||
if (tag != None and tag in watch['tag']):
|
||||
i += 1
|
||||
update_q.put(watch_uuid)
|
||||
else:
|
||||
# No tag, no uuid, add everything.
|
||||
for watch_uuid, watch in datastore.data['watching'].items():
|
||||
i += 1
|
||||
update_q.put(watch_uuid)
|
||||
|
||||
messages.append({'class': 'ok', 'message': "{} watches are rechecking.".format(i)})
|
||||
return redirect(url_for('main_page', tag=tag))
|
||||
|
||||
|
||||
|
||||
# Requests for checking on the site use a pool of thread Workers managed by a Queue.
|
||||
class Worker(threading.Thread):
|
||||
|
||||
current_uuid = None
|
||||
|
||||
|
||||
def __init__(self, q, *args, **kwargs):
|
||||
self.q = q
|
||||
super().__init__(*args, **kwargs)
|
||||
|
||||
def run(self):
|
||||
import fetch_site_status
|
||||
|
||||
from copy import deepcopy
|
||||
|
||||
update_handler = fetch_site_status.perform_site_check(datastore=datastore)
|
||||
|
||||
try:
|
||||
while True:
|
||||
uuid = self.q.get() # Blocking
|
||||
self.current_uuid = uuid
|
||||
|
||||
if uuid in list(datastore.data['watching'].keys()):
|
||||
|
||||
result = update_handler.run(uuid)
|
||||
|
||||
datastore.update_watch(uuid=uuid, update_obj=result)
|
||||
|
||||
|
||||
self.current_uuid = None # Done
|
||||
self.q.task_done()
|
||||
|
||||
except KeyboardInterrupt:
|
||||
return
|
||||
|
||||
# Thread runner to check every minute, look for new watches to feed into the Queue.
|
||||
def ticker_thread_check_time_launch_checks():
|
||||
|
||||
# Spin up Workers.
|
||||
for _ in range(datastore.data['settings']['requests']['workers']):
|
||||
new_worker = Worker(update_q)
|
||||
running_update_threads.append(new_worker)
|
||||
new_worker.start()
|
||||
|
||||
# Every minute check for new UUIDs to follow up on
|
||||
while True:
|
||||
minutes = datastore.data['settings']['requests']['minutes_between_check']
|
||||
for uuid, watch in datastore.data['watching'].items():
|
||||
if watch['last_checked'] <= time.time() - (minutes * 60):
|
||||
update_q.put(uuid)
|
||||
|
||||
time.sleep(60)
|
||||
|
||||
|
||||
# Thread runner, this helps with thread/write issues when there are many operations that want to update the JSON
|
||||
# by just running periodically in one thread, according to python, dict updates are threadsafe.
|
||||
def save_datastore():
|
||||
try:
|
||||
while True:
|
||||
if datastore.needs_write:
|
||||
datastore.sync_to_json()
|
||||
time.sleep(1)
|
||||
|
||||
except KeyboardInterrupt:
|
||||
return
|
||||
|
||||
def main(argv):
|
||||
ssl_mode = False
|
||||
port = 5000
|
||||
|
||||
try:
|
||||
opts, args = getopt.getopt(argv, "sp:", "purge")
|
||||
except getopt.GetoptError:
|
||||
print('backend.py -s SSL enable -p [port]')
|
||||
sys.exit(2)
|
||||
|
||||
for opt, arg in opts:
|
||||
if opt == '--purge':
|
||||
# Remove history, the actual files you need to delete manually.
|
||||
for uuid, watch in datastore.data['watching'].items():
|
||||
watch.update({'history': {}, 'last_checked': 0, 'last_changed': 0, 'previous_md5': None})
|
||||
|
||||
if opt == '-s':
|
||||
ssl_mode = True
|
||||
|
||||
if opt == '-p':
|
||||
port = arg
|
||||
|
||||
# @todo handle ctrl break
|
||||
ticker_thread = threading.Thread(target=ticker_thread_check_time_launch_checks).start()
|
||||
|
||||
save_data_thread = threading.Thread(target=save_datastore).start()
|
||||
|
||||
# @todo finalise SSL config, but this should get you in the right direction if you need it.
|
||||
if ssl_mode:
|
||||
eventlet.wsgi.server(eventlet.wrap_ssl(eventlet.listen(('', port)),
|
||||
certfile='cert.pem',
|
||||
keyfile='privkey.pem',
|
||||
server_side=True), app)
|
||||
|
||||
else:
|
||||
eventlet.wsgi.server(eventlet.listen(('', port)), app)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
main(sys.argv[1:])
|
||||
@ -1,14 +0,0 @@
|
||||
|
||||
from flask import make_response
|
||||
from functools import wraps, update_wrapper
|
||||
from datetime import datetime
|
||||
|
||||
def nocache(view):
|
||||
@wraps(view)
|
||||
def no_cache(*args, **kwargs):
|
||||
response = make_response(view(*args, **kwargs))
|
||||
response.headers['hmm'] = datetime.now()
|
||||
|
||||
return response
|
||||
|
||||
return update_wrapper(no_cache, view)
|
||||
@ -0,0 +1,30 @@
|
||||
#!/usr/bin/python3
|
||||
|
||||
import pytest
|
||||
import backend
|
||||
|
||||
# https://github.com/pallets/flask/blob/1.1.2/examples/tutorial/tests/test_auth.py
|
||||
|
||||
# Much better boilerplate than the docs
|
||||
# https://www.python-boilerplate.com/py3+flask+pytest/
|
||||
|
||||
@pytest.fixture
|
||||
def app(request):
|
||||
app = backend.changedetection_app({'datastore_path':'./datastorexxx'})
|
||||
app.debug = True
|
||||
|
||||
def teardown():
|
||||
app.config['STOP_THREADS']=True
|
||||
print("teardown")
|
||||
|
||||
request.addfinalizer(teardown)
|
||||
|
||||
return app.test_client()
|
||||
|
||||
|
||||
def test_hello_world(app):
|
||||
res = app.get("/")
|
||||
# print(dir(res), res.status_code)
|
||||
assert res.status_code == 200
|
||||
assert b"IMPORT" in res.data
|
||||
|
||||
Loading…
Reference in new issue