You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
487 lines
15 KiB
487 lines
15 KiB
#!/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
|
|
import fetch_site_status
|
|
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"):
|
|
if timestamp == 0:
|
|
return 'Not yet'
|
|
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]
|
|
|
|
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):
|
|
try:
|
|
while True:
|
|
uuid = self.q.get() # Blocking
|
|
self.current_uuid = uuid
|
|
# A little safety protection
|
|
if uuid in list( datastore.data['watching'].keys()):
|
|
fetch_site_status.perform_site_check(uuid=uuid, datastore=datastore)
|
|
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(5)
|
|
|
|
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:])
|