├── .python-version
├── Procfile
├── static
    ├── css
    │   ├── overrides.css
    │   ├── c3.min.css
    │   └── c3.css
    ├── favicon.ico
    ├── apple-touch-icon-precomposed.png
    ├── sse.tag
    ├── fetch-table.tag
    ├── parser-chart.tag
    ├── fetcher-chart.tag
    └── js
    │   ├── route.min.js
    │   ├── history.min.js
    │   ├── eventsource.min.js
    │   ├── riot.min.js
    │   ├── zepto.min.js
    │   ├── riot+compiler.min.js
    │   └── moment.min.js
├── screenshots
    └── 2017-12-10.png
├── ENV
├── Dockerfile
├── requirements.txt
├── repl.py
├── Makefile
├── LICENSE
├── legacy-sqlite
    ├── fetch.hy
    └── fetch.py
├── .gitignore
├── compose-swarm.yml
├── scheduler.py
├── docker-compose.yml
├── import.py
├── config.py
├── common.py
├── views
    └── layout.tpl
├── README.md
├── langkit.py
├── web.py
├── fetcher.py
├── parser.py
└── metrics.py


/.python-version:
--------------------------------------------------------------------------------
1 | anaconda3-5.2.0
2 | 


--------------------------------------------------------------------------------
/Procfile:
--------------------------------------------------------------------------------
1 | fetcher: python fetcher.py
2 | parser: python parser.py
3 | 


--------------------------------------------------------------------------------
/static/css/overrides.css:
--------------------------------------------------------------------------------
1 | .c3-chart-arcs-title {
2 |    font-size: 2em;
3 | }
4 | 


--------------------------------------------------------------------------------
/static/favicon.ico:
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https://raw.githubusercontent.com/rcarmo/newsfeed-corpus/HEAD/static/favicon.ico


--------------------------------------------------------------------------------
/screenshots/2017-12-10.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/rcarmo/newsfeed-corpus/HEAD/screenshots/2017-12-10.png


--------------------------------------------------------------------------------
/static/apple-touch-icon-precomposed.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/rcarmo/newsfeed-corpus/HEAD/static/apple-touch-icon-precomposed.png


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/ENV:
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 1 | PYTHON_VERSION=3
 2 | MONGO_SERVER=db:27017
 3 | REDIS_SERVER=redis:6379
 4 | HTTP_PORT=8000
 5 | DATABASE_NAME=feeds
 6 | PORT=4656
 7 | FETCH_INTERVAL=1800
 8 | CHECK_INTERVAL=3600
 9 | DEBUG=True
10 | PROFILER=False
11 | PYTHONIOENCODING=UTF_8:replace
12 | LC_ALL=en_US.UTF-8
13 | LANG=en_US.UTF-8
14 | TIMEZONE=Europe/Lisbon
15 | 


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/Dockerfile:
--------------------------------------------------------------------------------
 1 | FROM rcarmo/ubuntu-python:3.7-onbuild-amd64
 2 | 
 3 | # Install nltk data we need
 4 | RUN python -m nltk.downloader -d /usr/local/share/nltk_data stopwords punkt rslp averaged_perceptron_tagger
 5 | 
 6 | # Bake code into containers rather than use the Compose mount point
 7 | #ADD . /app
 8 | WORKDIR /app
 9 | EXPOSE 8000
10 | 


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/static/sse.tag:
--------------------------------------------------------------------------------
 1 | <sse-counter>
 2 |     <script>
 3 |         var self = this;
 4 |         this.mixin(SharedMixin);
 5 | 
 6 |         self.on('mount', function () {
 7 | 
 8 |             e.addEventListener("message", function (e) {
 9 |                 self.value = e.data;
10 |                 console.log(self.value);
11 |                 
12 |                 self.update();
13 |             }, false);
14 |         })
15 |     </script>
16 | </sse-counter>


--------------------------------------------------------------------------------
/requirements.txt:
--------------------------------------------------------------------------------
 1 | aiocache>=0.11.1
 2 | aiodns>=3.0.0
 3 | aiohttp>=3.7.4
 4 | aioredis>=2.0.0
 5 | aiotasks>=1.0.0
 6 | aiozmq>=0.9.0
 7 | beautifulsoup4>=4.9.3
 8 | bpython>=0.21
 9 | feedparser>=6.0.8
10 | gensim>=4.0.1
11 | hiredis>=2.0.0
12 | langdetect>=1.0.9
13 | mako>=1.1.4
14 | motor>=2.5.0
15 | msgpack-python>=0.5.6
16 | nltk>=3.6.2
17 | numpy>=1.21.2
18 | pattern3>=3.0.0
19 | pycallgraph>=1.0.1
20 | pymongo[tls]>=3.12.0
21 | sanic>=21.6.2
22 | stop-words>=2018.7.23
23 | ujson>=4.1.0
24 | uvloop>=0.16.0


--------------------------------------------------------------------------------
/repl.py:
--------------------------------------------------------------------------------
 1 | #!/usr/bin/env python3
 2 | 
 3 | """ REPL for database inspection """
 4 | 
 5 | from config import (CHECK_INTERVAL, DATABASE_NAME, FETCH_INTERVAL,
 6 |                     MAX_CONCURRENT_REQUESTS, MONGO_SERVER, log)
 7 | from datetime import datetime, timedelta
 8 | from pymongo import MongoClient
 9 | from code import interact
10 | from bpython import embed
11 | 
12 | def main():
13 |     client = MongoClient(MONGO_SERVER)
14 |     db = client[DATABASE_NAME]
15 | 
16 |     embed(locals_=locals())
17 | 
18 | if __name__ == '__main__':
19 |     main()
20 | 


--------------------------------------------------------------------------------
/Makefile:
--------------------------------------------------------------------------------
 1 | CHECK_INTERVAL?=5
 2 | FETCH_INTERVAL?=15
 3 | MONGO_SERVER?=localhost:27017
 4 | DATABASE_NAME?=feeds
 5 | PORT?=8000
 6 | 
 7 | # Permanent local overrides
 8 | -include .env
 9 | 
10 | # Run the stack locally
11 | serve:
12 | 	docker-compose up --build
13 | 
14 | # Build the base container when we update dependencies
15 | build:
16 | 	docker-compose build
17 | 
18 | restart-web:
19 | 	docker-compose stop web
20 | 	docker-compose build web
21 | 	docker-compose up -d --no-deps web
22 | 
23 | repl:
24 | 	docker-compose exec web python repl.py
25 | 
26 | nuke-database:
27 | 	docker-compose stop db 
28 | 	docker-compose build db
29 | 	docker-compose up -d --no-deps db 
30 | 
31 | # Install deps locally for REPL
32 | host-deps:
33 | 	pip install -U -r requirements.txt
34 | 
35 | clean:
36 | 	-rm -f *.pyc
37 | 	-docker rm -v $$(docker ps -a -q -f status=exited)
38 | 	-docker rmi $$(docker images -q -f dangling=true)
39 | 	-docker rmi $$(docker images --format '{{.Repository}}:{{.Tag}}' | grep '$(IMAGE_NAME)')
40 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | MIT License
 2 | 
 3 | Copyright (c) 2016 Rui Carmo
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


--------------------------------------------------------------------------------
/legacy-sqlite/fetch.hy:
--------------------------------------------------------------------------------
 1 | (import [lxml [etree]]
 2 |         [tinydb [TinyDB]]
 3 |         [asyncio [coroutine get-event-loop as-completed Semaphore]]
 4 |         [aiohttp [request]]
 5 |         [tqdm [tqdm]]
 6 |         [aiohttp.connector [TCPConnector]])
 7 | 
 8 | (def db (TinyDB "feeds.json"))
 9 | (def semaphore (Semaphore 5))
10 | 
11 | 
12 | (with-decorator coroutine
13 |   (defn fetch-one [feed]
14 |     (print feed)
15 |     (let [[response (yield-from (apply request ["GET" (str (.get feed "url"))] {"compress" true}))]]
16 |       (yield-from (.text response)))))
17 | 
18 | 
19 | (with-decorator coroutine
20 |   (defn print-status [feed]
21 |       (print (yield-from (fetch-one feed)))))
22 | 
23 | 
24 | (with-decorator coroutine
25 |   (defn show-progress [jobs]
26 |      (for [j (apply tqdm [(as-completed jobs)] {"total" (len jobs)})]
27 |         (yield-from j))))
28 | 
29 | 
30 | (defn feeds-from-opml [filename]
31 |   (let [[tree (.parse etree filename)]
32 |         [feeds (.xpath tree "//outline")]]
33 |     (for [feed feeds]
34 |       (yield {"title"(.get feed "title")
35 |               "url"  (.get feed "xmlUrl")}))))
36 | 
37 | (defn main []
38 |   (let [[loop (get-event-loop)]
39 |         [pool (TCPConnector)]
40 |         [feeds (feeds-from-opml "feeds.opml")]
41 |         [jobs (list (map print-status feeds))]]
42 |     (.run-until-complete loop (show-progress jobs))))
43 | 
44 | 
45 | (main)
46 | 


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/static/fetch-table.tag:
--------------------------------------------------------------------------------
 1 | <fetch-table>
 2 |     <div id="table{UID}" class="container hide">
 3 |         <table class="bordered">
 4 |             <tbody>
 5 |             <tr each={events}>
 6 |                 <td>{time}</td>
 7 |                 <td>{status}</td>
 8 |                 <td style="max-width: 70%;" class="truncate">{url}</td>
 9 |             </tr>
10 |             </tbody>
11 |         </table>
12 |     </div>
13 |     <div id="message{UID}" class="container center-align grey-text">
14 |        <i class="material-icons large">info_outline</i><br/>
15 |        Nothing being fetched at the moment
16 |     </div>
17 |     <script>
18 |         this.mixin(SharedMixin);
19 |         var self = this;
20 |         self.events = [];
21 | 
22 |         self.on('mount', function() {
23 |             this.source.addEventListener("fetch_result", function (e) {
24 |                 $('#table' + self.UID).removeClass('hide');
25 |                 $('#message' + self.UID).addClass('hide');
26 |                 var item = JSON.parse(e.data);
27 |                 item.time = moment().format('HH:mm');
28 |                 item.url = item.url.replace(/^http([s]?)\:\/\//g, '');
29 |                 console.log(item.url);
30 |                 self.events.unshift(item);
31 |                 if(self.events.length > 4) {
32 |                     self.events.pop();
33 |                 }
34 |                 self.update();
35 |             }, false);
36 |         })
37 |     </script>
38 | </fetch-table>
39 | 


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/.gitignore:
--------------------------------------------------------------------------------
 1 | # Byte-compiled / optimized / DLL files
 2 | __pycache__/
 3 | *.py[cod]
 4 | *$py.class
 5 | 
 6 | # C extensions
 7 | *.so
 8 | 
 9 | # Distribution / packaging
10 | .Python
11 | env/
12 | build/
13 | develop-eggs/
14 | dist/
15 | downloads/
16 | eggs/
17 | .eggs/
18 | lib/
19 | lib64/
20 | parts/
21 | sdist/
22 | var/
23 | *.egg-info/
24 | .installed.cfg
25 | *.egg
26 | 
27 | # PyInstaller
28 | #  Usually these files are written by a python script from a template
29 | #  before PyInstaller builds the exe, so as to inject date/other infos into it.
30 | *.manifest
31 | *.spec
32 | 
33 | # Installer logs
34 | pip-log.txt
35 | pip-delete-this-directory.txt
36 | 
37 | # Unit test / coverage reports
38 | htmlcov/
39 | .tox/
40 | .coverage
41 | .coverage.*
42 | .cache
43 | nosetests.xml
44 | coverage.xml
45 | *,cover
46 | .hypothesis/
47 | 
48 | # Translations
49 | *.mo
50 | *.pot
51 | 
52 | # Django stuff:
53 | *.log
54 | local_settings.py
55 | 
56 | # Flask stuff:
57 | instance/
58 | .webassets-cache
59 | 
60 | # Scrapy stuff:
61 | .scrapy
62 | 
63 | # Sphinx documentation
64 | docs/_build/
65 | 
66 | # PyBuilder
67 | target/
68 | 
69 | # IPython Notebook
70 | .ipynb_checkpoints
71 | 
72 | # pyenv
73 | .python-version
74 | 
75 | # celery beat schedule file
76 | celerybeat-schedule
77 | 
78 | # dotenv
79 | .env
80 | 
81 | # virtualenv
82 | venv/
83 | ENV/
84 | 
85 | # Spyder project settings
86 | .spyderproject
87 | 
88 | # Rope project settings
89 | .ropeproject
90 | 
91 | *.opml
92 | 
93 | # VS Code
94 | .vscode
95 | 
96 | # AppleTalk junk
97 | .AppleDouble
98 | 


--------------------------------------------------------------------------------
/compose-swarm.yml:
--------------------------------------------------------------------------------
 1 | version: '2'
 2 | services:
 3 |   redis:
 4 |     image: redis:3.2.8
 5 |     ports:
 6 |       - "6379:6379"
 7 |     logging:
 8 |       driver: "none"
 9 |     environment:
10 |       - "constraint:node.role==master"
11 | 
12 |   db:
13 |     image: mongo:3.4
14 |     ports: 
15 |       - "27017:27017"
16 |     logging:
17 |       driver: "none"
18 |     environment:
19 |       - "constraint:node.role==master"
20 | 
21 |   importer:
22 |     build: .
23 |     env_file: 
24 |       - ENV
25 |     environment:
26 |       - "constraint:node.role==worker"
27 |     volumes:
28 |       - .:/app
29 |     links:
30 |       - db
31 |       - redis
32 |     working_dir: /app
33 |     command: python -u import.py
34 | 
35 |   scheduler:
36 |     build: .
37 |     env_file: 
38 |       - ENV
39 |     environment:
40 |       - "constraint:node.role==worker"
41 |     volumes:
42 |       - .:/app
43 |     links:
44 |       - db
45 |       - redis
46 |     working_dir: /app
47 |     command: python -u scheduler.py
48 | 
49 |   fetcher:
50 |     build: .
51 |     env_file: 
52 |       - ENV
53 |     environment:
54 |       - "constraint:node.role==worker"
55 |     volumes:
56 |       - .:/app
57 |     links:
58 |       - db
59 |       - redis
60 |     working_dir: /app
61 |     command: python -u fetcher.py
62 | 
63 |   parser:
64 |     build: .
65 |     env_file: 
66 |       - ENV
67 |     environment:
68 |       - "constraint:node.role==worker"
69 |     volumes:
70 |       - .:/app
71 |     links:
72 |       - db
73 |       - redis
74 |     working_dir: /app
75 |     command: python -u parser.py
76 | 
77 |   web:  
78 |     build: .
79 |     ports:
80 |       - "8000:8000"
81 |     env_file: 
82 |       - ENV
83 |     environment:
84 |       - "constraint:node.role==master"
85 |     volumes:
86 |       - .:/app
87 |     links:
88 |       - db
89 |       - redis
90 |     working_dir: /app
91 |     command: python -u web.py


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/static/css/c3.min.css:
--------------------------------------------------------------------------------
1 | .c3 svg{font:10px sans-serif;-webkit-tap-highlight-color:transparent}.c3 line,.c3 path{fill:none;stroke:#000}.c3 text{-webkit-user-select:none;-moz-user-select:none;user-select:none}.c3-bars path,.c3-event-rect,.c3-legend-item-tile,.c3-xgrid-focus,.c3-ygrid{shape-rendering:crispEdges}.c3-chart-arc path{stroke:#fff}.c3-chart-arc text{fill:#fff;font-size:13px}.c3-grid line{stroke:#aaa}.c3-grid text{fill:#aaa}.c3-xgrid,.c3-ygrid{stroke-dasharray:3 3}.c3-text.c3-empty{fill:grey;font-size:2em}.c3-line{stroke-width:1px}.c3-circle._expanded_{stroke-width:1px;stroke:#fff}.c3-selected-circle{fill:#fff;stroke-width:2px}.c3-bar{stroke-width:0}.c3-bar._expanded_{fill-opacity:1;fill-opacity:.75}.c3-target.c3-focused{opacity:1}.c3-target.c3-focused path.c3-line,.c3-target.c3-focused path.c3-step{stroke-width:2px}.c3-target.c3-defocused{opacity:.3!important}.c3-region{fill:#4682b4;fill-opacity:.1}.c3-brush .extent{fill-opacity:.1}.c3-legend-item{font-size:12px}.c3-legend-item-hidden{opacity:.15}.c3-legend-background{opacity:.75;fill:#fff;stroke:#d3d3d3;stroke-width:1}.c3-title{font:14px sans-serif}.c3-tooltip-container{z-index:10}.c3-tooltip{border-collapse:collapse;border-spacing:0;background-color:#fff;empty-cells:show;-webkit-box-shadow:7px 7px 12px -9px #777;-moz-box-shadow:7px 7px 12px -9px #777;box-shadow:7px 7px 12px -9px #777;opacity:.9}.c3-tooltip tr{border:1px solid #ccc}.c3-tooltip th{background-color:#aaa;font-size:14px;padding:2px 5px;text-align:left;color:#fff}.c3-tooltip td{font-size:13px;padding:3px 6px;background-color:#fff;border-left:1px dotted #999}.c3-tooltip td>span{display:inline-block;width:10px;height:10px;margin-right:6px}.c3-tooltip td.value{text-align:right}.c3-area{stroke-width:0;opacity:.2}.c3-chart-arcs-title{dominant-baseline:middle;font-size:1.3em}.c3-chart-arcs .c3-chart-arcs-background{fill:#e0e0e0;stroke:none}.c3-chart-arcs .c3-chart-arcs-gauge-unit{fill:#000;font-size:16px}.c3-chart-arcs .c3-chart-arcs-gauge-max{fill:#777}.c3-chart-arcs .c3-chart-arcs-gauge-min{fill:#777}.c3-chart-arc .c3-gauge-value{fill:#000}.c3-chart-arc.c3-target g path{opacity:1}.c3-chart-arc.c3-target.c3-focused g path{opacity:1}


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/legacy-sqlite/fetch.py:
--------------------------------------------------------------------------------
 1 | from time import time
 2 | from asyncio import get_event_loop, Semaphore, gather, ensure_future
 3 | from aiohttp import ClientSession
 4 | from xml.etree import ElementTree
 5 | from playhouse.sqlite_ext import SqliteExtDatabase
 6 | from playhouse.kv import JSONKeyStore
 7 | 
 8 | async def fetch_one(session, feed, db):
 9 |     url = feed.value.get("url")
10 |     print("Fetching {0}".format(url))
11 |     try:
12 |         async with session.get(url) as response:
13 |             text = await response.text()
14 |             feed.value.update({"text": text, "last_status": response.status, "last_fetched": time()})
15 |             feed.save()
16 |             return feed, response.status
17 |     except Exception as e:
18 |         print(e)
19 |         feed.value.update({"last_status": 0, "last_fetched": time()})
20 |         feed.save()
21 |         return feed, 0
22 |         pass
23 | 
24 | async def throttle(sem, session, feed, db):
25 |     async with sem:
26 |         res = await fetch_one(session, feed, db)
27 |         print(res[0].value["url"],res[1])
28 | 
29 | async def fetcher(db):
30 |     sem = Semaphore(100)
31 |     tasks = []
32 |     async with ClientSession() as session:
33 |         for feed in db.model.select().where(db.model.key.startswith("feed:")):
34 |             task = ensure_future(throttle(sem, session, feed, db))
35 |             tasks.append(task)
36 | 
37 |         responses = gather(*tasks)
38 |         await responses
39 | 
40 | def feeds_from_opml(filename):
41 |     tree = ElementTree.parse(filename)
42 |     for feed in tree.findall('.//outline'):
43 |         if feed.get('xmlUrl'):
44 |             yield {'title': feed.get('title'),
45 |                    'url': feed.get('xmlUrl')}
46 | 
47 | def update_database(db, filename):
48 |     for feed in feeds_from_opml(filename):
49 |         if not "feed:" + feed['url'] in db:
50 |             feed['last_fetched'] = 0
51 |             db["feed:" + feed['url']] = feed
52 | 
53 | if __name__ == '__main__':
54 |     db = JSONKeyStore(database=SqliteExtDatabase('/tmp/feeds.db'))
55 |     update_database(db,'feeds.opml')
56 |     loop = get_event_loop()
57 |     tasks = ensure_future(fetcher(db))
58 |     loop.run_until_complete(tasks)
59 | 


--------------------------------------------------------------------------------
/scheduler.py:
--------------------------------------------------------------------------------
 1 | #!/usr/bin/env python3
 2 | 
 3 | """ Feed enumerator """
 4 | 
 5 | from asyncio import ensure_future, get_event_loop, set_event_loop_policy, sleep
 6 | from config import (CHECK_INTERVAL, DATABASE_NAME, FETCH_INTERVAL,
 7 |                     MONGO_SERVER, log)
 8 | from datetime import datetime, timedelta
 9 | 
10 | from common import REDIS_NAMESPACE, connect_redis, enqueue
11 | from motor.motor_asyncio import AsyncIOMotorClient
12 | from uvloop import EventLoopPolicy
13 | 
14 | 
15 | async def scan_feeds(db):
16 |     """Enumerate all feeds and queue them for fetching"""
17 | 
18 |     # let importer run first while we're testing
19 |     await sleep(5)
20 | 
21 |     log.info("Beginning run.")
22 | 
23 |     while True:
24 |         threshold = datetime.now() - timedelta(seconds=FETCH_INTERVAL)
25 |         log.debug(threshold)
26 |         queue = await connect_redis()
27 |         log.info("Scanning feed list.")
28 |         log.debug("Starting loop")
29 |         count = 0
30 |         async for feed in db.feeds.find({'last_fetched': {'$lt': threshold}}):
31 |             count = count + 1
32 |             url = feed['url']
33 |             log.debug("Checking %d: %s", count, url)
34 |             log.debug("Queueing %s", url)
35 |             await enqueue(queue, "fetcher", {
36 |                 "_id": feed['_id'],
37 |                 "scheduled_at": datetime.now()
38 |             })
39 |             if not (count % 10):
40 |                await queue.hset(REDIS_NAMESPACE + 'status', 'feed_count', count)
41 |         await queue.hset(REDIS_NAMESPACE + 'status', 'feed_count', count)
42 |         queue.close()
43 |         await queue.wait_closed()
44 |         log.info("Run complete, sleeping %ds...", CHECK_INTERVAL)
45 |         await sleep(CHECK_INTERVAL)
46 | 
47 | 
48 | def main():
49 |     """Setup event loop and start coroutines"""
50 | 
51 |     set_event_loop_policy(EventLoopPolicy())
52 |     loop = get_event_loop()
53 | 
54 |     client = AsyncIOMotorClient(MONGO_SERVER)
55 |     database = client[DATABASE_NAME]
56 | 
57 |     ensure_future(scan_feeds(database))
58 |     try:
59 |         loop.run_forever()
60 |     finally:
61 |         loop.close()
62 | 
63 | 
64 | if __name__ == '__main__':
65 |     main()
66 | 


--------------------------------------------------------------------------------
/docker-compose.yml:
--------------------------------------------------------------------------------
  1 | version: '2'
  2 | services:
  3 |   redis:
  4 |     image: redis:3.2.8
  5 |     ports:
  6 |       - "6379:6379"
  7 |     logging:
  8 |       driver: "none"
  9 |     environment:
 10 |       - "constraint:node.role==master"
 11 | 
 12 |   db:
 13 |     image: mongo:3.4
 14 |     ports: 
 15 |       - "27017:27017"
 16 |     logging:
 17 |       driver: "none"
 18 |     environment:
 19 |       - "constraint:node.role==master"
 20 | 
 21 |   importer:
 22 |     build: .
 23 |     env_file: 
 24 |       - ENV
 25 |     environment:
 26 |       - "constraint:node.role==worker"
 27 |     volumes:
 28 |       - .:/app
 29 |     links:
 30 |       - db
 31 |       - redis
 32 |     working_dir: /app
 33 |     command: python -u import.py
 34 | 
 35 |   scheduler:
 36 |     build: .
 37 |     env_file: 
 38 |       - ENV
 39 |     environment:
 40 |       - "constraint:node.role==worker"
 41 |     volumes:
 42 |       - .:/app
 43 |     links:
 44 |       - db
 45 |       - redis
 46 |     working_dir: /app
 47 |     command: python -u scheduler.py
 48 | 
 49 |   fetcher:
 50 |     build: .
 51 |     env_file: 
 52 |       - ENV
 53 |     environment:
 54 |       - "constraint:node.role==worker"
 55 |     volumes:
 56 |       - .:/app
 57 |     links:
 58 |       - db
 59 |       - redis
 60 |     working_dir: /app
 61 |     command: python -u fetcher.py
 62 | 
 63 |   parser:
 64 |     build: .
 65 |     env_file: 
 66 |       - ENV
 67 |     environment:
 68 |       - "constraint:node.role==worker"
 69 |     volumes:
 70 |       - .:/app
 71 |     links:
 72 |       - db
 73 |       - redis
 74 |     working_dir: /app
 75 |     command: python -u parser.py
 76 | 
 77 |   metrics:  
 78 |     build: .
 79 |     ports:
 80 |       - "9213:8000"
 81 |     env_file: 
 82 |       - ENV
 83 |     environment:
 84 |       - "constraint:node.role==master"
 85 |     volumes:
 86 |       - .:/app
 87 |     links:
 88 |       - db
 89 |       - redis
 90 |     working_dir: /app
 91 |     command: python -u metrics.py
 92 | 
 93 |   web:  
 94 |     build: .
 95 |     ports:
 96 |       - "8000:8000"
 97 |     env_file: 
 98 |       - ENV
 99 |     environment:
100 |       - "constraint:node.role==master"
101 |     volumes:
102 |       - .:/app
103 |     links:
104 |       - db
105 |       - redis
106 |     working_dir: /app
107 |     command: python -u web.py
108 | 


--------------------------------------------------------------------------------
/import.py:
--------------------------------------------------------------------------------
 1 | #!/usr/bin/env python3
 2 | 
 3 | """OPML importer"""
 4 | 
 5 | from asyncio import (Semaphore, ensure_future, gather, get_event_loop,
 6 |                      set_event_loop_policy)
 7 | from config import (DATABASE_NAME, DATE_FORMAT, FETCH_INTERVAL, MONGO_SERVER,
 8 |                     log)
 9 | from datetime import datetime
10 | from time import sleep, strftime, time
11 | from xml.etree import ElementTree
12 | 
13 | from aiohttp import ClientSession
14 | from common import REDIS_NAMESPACE, connect_redis, safe_id
15 | from motor.motor_asyncio import AsyncIOMotorClient
16 | from pymongo import ASCENDING, DESCENDING
17 | from pymongo.errors import DuplicateKeyError
18 | from uvloop import EventLoopPolicy
19 | 
20 | 
21 | def feeds_from_opml(filename):
22 |     """Extract useful attributes from OPML"""
23 | 
24 |     tree = ElementTree.parse(filename)
25 |     for feed in tree.findall('.//outline'):
26 |         if feed.get('xmlUrl'):
27 |             yield {'title': feed.get('title'),
28 |                    'url': feed.get('xmlUrl')}
29 | 
30 | 
31 | async def update_database(db, filename):
32 |     """Create indexes and import feeds"""
33 | 
34 |     entries = db.entries
35 |     await db.entries.create_index([("date", DESCENDING)])
36 |     await db.entries.create_index([("url", ASCENDING)])
37 |     feeds = db.feeds
38 |     await db.feeds.create_index([("url", ASCENDING)])
39 |     # TODO: turn this into a bulk upsert
40 |     for feed in feeds_from_opml(filename):
41 |         if not await feeds.find_one({'url': feed['url']}):
42 |             log.debug("Inserting %s" % feed)
43 |             feed = dict(feed, **{
44 |                 '_id': safe_id(feed['url']),
45 |                 'created': datetime.now(),
46 |                 'last_fetched': datetime(1970, 1, 1)
47 |             })
48 |             try:
49 |                 await feeds.insert_one(feed)
50 |             except DuplicateKeyError as e:
51 |                 log.debug(e)
52 |     redis = await connect_redis()
53 |     await redis.hset(REDIS_NAMESPACE + 'status', 'feed_count', await db.feeds.count_documents({}))
54 | 
55 | 
56 | if __name__ == '__main__':
57 | 
58 |     set_event_loop_policy(EventLoopPolicy())
59 |     loop = get_event_loop()
60 | 
61 |     c = AsyncIOMotorClient(MONGO_SERVER)
62 |     db = c[DATABASE_NAME]
63 |     try:
64 |         loop.run_until_complete(update_database(db,'feeds.opml'))
65 |     finally:
66 |         loop.close()
67 | 


--------------------------------------------------------------------------------
/config.py:
--------------------------------------------------------------------------------
 1 | #!/bin/env python3
 2 | 
 3 | """ Configuration """
 4 | 
 5 | from cProfile import Profile
 6 | from logging import getLogger
 7 | from logging.config import dictConfig
 8 | from os import environ
 9 | 
10 | FETCH_INTERVAL = int(environ.get('FETCH_INTERVAL', 3600))
11 | CHECK_INTERVAL = int(environ.get('CHECK_INTERVAL', 900))
12 | METRICS_INTERVAL = int(environ.get('METRICS_INTERVAL', 5))
13 | HTTP_PORT = int(environ.get('HTTP_PORT', 8000))
14 | BIND_ADDRESS = environ.get('BIND_ADDRESS','0.0.0.0')
15 | DEBUG = environ.get('DEBUG','False').lower() == 'true'
16 | MAX_CONCURRENT_REQUESTS = int(environ.get('MAX_CONCURRENT_REQUESTS', 100))
17 | MONGO_SERVER = environ.get('MONGO_SERVER', 'localhost:27017')
18 | REDIS_SERVER = environ.get('REDIS_SERVER', 'localhost:6379')
19 | REDIS_NAMESPACE = environ.get('REDIS_NAMESPACE', 'newspipe:')
20 | DATABASE_NAME = environ.get('DATABASE_NAME', 'feeds')
21 | DATE_FORMAT = '%Y-%m-%d %H:%M:%S'
22 | PROFILER = environ.get('PROFILER','False').lower() == "true"
23 | 
24 | if PROFILER:
25 |     profiler = Profile()
26 |     profiler.enable()
27 | else:
28 |     profiler = None
29 | 
30 | async def get_profile():
31 |     """Return a profile dump"""
32 |     
33 |     global profiler
34 |     log.info(profiler)
35 | 
36 |     if profiler:
37 |         profiler.create_stats()
38 |         return profiler.stats
39 |     return None
40 | 
41 | 
42 | dictConfig({
43 |     "version": 1,
44 |     "formatters": {
45 |         "http": {
46 |             "format" : "localhost - - [%(asctime)s] %(process)d %(levelname)s %(message)s",
47 |             "datefmt": "%Y/%m/%d %H:%M:%S"
48 |         },
49 |         "service": {
50 |             "format" : "%(asctime)s %(levelname)s %(message)s",
51 |             "datefmt": "%Y-%m-%d %H:%M:%S"
52 |         }
53 |     },
54 |     "handlers": {
55 |         "console": {
56 |             "class"    : "logging.StreamHandler",
57 |             "formatter": "service",
58 |             "level"    : "DEBUG",
59 |             "stream"   : "ext://sys.stdout"
60 |         }
61 |     },
62 |     "loggers": {
63 |         "sanic.static": {
64 |             "level"   : "INFO",
65 |             "handlers": ["console"]
66 |         }
67 |     },
68 |     "root": {
69 |         "level"   : "DEBUG" if DEBUG else "INFO",
70 |         "handlers": ["console"]
71 |     }
72 | })
73 | 
74 | log = getLogger()
75 | 
76 | log.info("Configuration loaded.")
77 | #for k in sorted(environ.keys()):
78 | #    log.debug("{}={}".format(k,environ[k]))
79 | 


--------------------------------------------------------------------------------
/static/parser-chart.tag:
--------------------------------------------------------------------------------
 1 | <parser-chart>
 2 |     <div class="container">
 3 |         <div class="row">
 4 |             <div id="donut{this.UID}" class="col" style="height: 160px; width: 100%;"></div>
 5 |         </div>
 6 |     </div>
 7 | 
 8 |     <script>
 9 |         var self = this;
10 |         self.mixin(SharedMixin);
11 |         self.total = 0;
12 |         self.activetotal = 0;
13 |         self.columms = [["pt",0]["en",0]["others",1]];
14 | 
15 |         self.renderTotal = function() {
16 |             var total=0,
17 |                 data=self.chart.data.shown();
18 |             for(var i=0,l=data.length;i<l;i++) {
19 |                 total+=data[i].values[0].value; 
20 |             }
21 |             d3.select('#donut'+self.UID+' .c3-chart-arcs-title').node().innerHTML = self.total;
22 |         }
23 | 
24 |         self.transform = function(data) {
25 |             self.total = self.activetotal = data.count;
26 |             self.columns = [];
27 |             var others = 0;
28 |             Object.keys(data.lang).forEach(function(key) {
29 |                 if(['pt', 'en'].indexOf(key) == -1) {
30 |                     others += data.lang[key];
31 |                 }
32 |                 else
33 |                     self.columns.unshift([key, data.lang[key]]);
34 |             });
35 |             self.columns.unshift(['other', others]);
36 |             self.chart.load({columns: self.columns})
37 |             self.renderTotal();
38 |             self.update();
39 |         }
40 | 
41 |         self.on('mount', function() {
42 |             self.chart = c3.generate({
43 |                 bindto: '#donut' + self.UID,
44 |                 data: {
45 |                     columns: self.columms,
46 |                     type : 'donut'
47 |                 },
48 |                 legend: {
49 |                    position: 'right',
50 |                    item: {
51 |                        onclick: function (d) { 
52 |                            self.chart.toggle(d);
53 |                            self.renderTotal();
54 |                        }
55 |                    }
56 |                 },
57 |                 tooltip: {
58 |                     format: {
59 |                         value: function (value) { return value; }
60 |                     }
61 |                 },
62 |                 donut: {
63 |                     title: self.total,
64 |                     label: {
65 |                         show: false,
66 |                         format: function (value) { return value; }
67 |                     }
68 |                 }
69 |             });
70 |             $.getJSON('/stats/entries', self.transform);
71 | 
72 |             this.source.addEventListener("metrics_entries", function (e) {
73 |                 self.transform(JSON.parse(e.data).data)
74 |             }, false);
75 |         })
76 |     </script>
77 | </parser-chart>
78 | 


--------------------------------------------------------------------------------
/common.py:
--------------------------------------------------------------------------------
 1 | #!/bin/env python3
 2 | 
 3 | """ Common functions """
 4 | 
 5 | from asyncio import get_event_loop, sleep
 6 | from config import REDIS_NAMESPACE, REDIS_SERVER, log
 7 | from hashlib import sha1
 8 | from json import dumps, loads
 9 | from time import time
10 | from urllib.parse import urlparse
11 | from uuid import uuid4
12 | 
13 | from aioredis import create_redis
14 | from bson import json_util
15 | 
16 | 
17 | def retry(attempts, on_exception, interval=0):
18 |     def wrap(func):
19 |         def f_retry(*args, **kwargs):
20 |             for i in range(attempts):
21 |                 try: 
22 |                     return func(*args, **kwargs)
23 |                 except on_exception as e:
24 |                     log.debug("retry %d for %s(%s, %s), waiting %d" % (i, func,args,kwargs, interval))
25 |                     sleep(interval)
26 |                     continue
27 |         return f_retry
28 |     return wrap
29 | 
30 | 
31 | def safe_id(url):
32 |     """Build a CosmosDB-safe and URL-safe ID that is still palatable to humans"""
33 |     fragments = urlparse(url)
34 |     safe = fragments.netloc + fragments.path.replace('/', '_').replace('+', '-')
35 |     if fragments.params or fragments.query:
36 |         # Add a short hash to distinguish between feeds from same site
37 |         safe += sha1(bytes(url, 'utf-8')).hexdigest()[6]
38 |     return safe.rstrip('_-')
39 | 
40 | async def connect_redis(loop=None):
41 |     """Connect to a Redis server"""
42 |     if not loop:
43 |         loop = get_event_loop()
44 | 
45 |     parts = REDIS_SERVER.split(",")
46 |     address = tuple(parts[0].split(":"))
47 |     rest = parts[1:]
48 |     types = {'db': int, 'password': str, 'ssl': bool}
49 |     params = {'loop':loop}
50 |     for param in rest:
51 |         try:
52 |             name, value = param.split('=',1)
53 |             if name in types:
54 |                 params[name] = types[name](value)
55 |         except ValueError:
56 |             log.warn("Could not parse %s" % param)
57 |             next
58 |     return await create_redis(address, **params)
59 | 
60 | async def enqueue(server, queue_name, data):
61 |     """Enqueue an object in a given redis queue"""
62 |     return await server.rpush(REDIS_NAMESPACE + queue_name, dumps(data, default=json_util.default))
63 | 
64 | async def dequeue(server, queue_name):
65 |     """Blocking dequeue from Redis"""
66 |     _, data = await server.blpop(REDIS_NAMESPACE + queue_name, 0)
67 |     return loads(data, object_hook=json_util.object_hook)
68 | 
69 | async def publish(server, topic_name, data):
70 |     """Publish data"""
71 |     _ = await server.publish_json(topic_name, data)
72 | 
73 | async def subscribe(server, topic_name):
74 |     """Subscribe to topic data"""
75 |     chan = await server.subscribe(topic_name)
76 |     return chan
77 | 
78 | async def unsubscribe(server, topic_name):
79 |     """Unsubscribe from topic data"""
80 |     _ = await server.unsubscribe(topic_name)


--------------------------------------------------------------------------------
/static/fetcher-chart.tag:
--------------------------------------------------------------------------------
 1 | <fetcher-chart>
 2 |     <div class="container">
 3 |         <div class="row">
 4 |             <div id="donut{this.UID}" class="col" style="height: 160px; width: 100%;"></div>
 5 |         </div>
 6 |     </div>
 7 | 
 8 |     <script>
 9 |         var self = this;
10 |         self.mixin(SharedMixin);
11 |         self.total = 0;
12 |         self.columns = [["Pending", 1]];
13 |         self.colors = {
14 |             "Pending": "#9e9e9e",
15 |             "Unreachable": "#d50000",
16 |             "Fetched": "#4caf50",
17 |             "Redirected": "#81c784",
18 |             "Inacessible": "#ff9800",
19 |             "Error": "#ff6d00"
20 |         }
21 | 
22 |         self.renderTotal = function() {
23 |             var total=0,
24 |                 data=self.chart.data.shown();
25 |             for(var i=0,l=data.length;i<l;i++) {
26 |                 total+=data[i].values[0].value; 
27 |             }
28 |             d3.select('#donut'+self.UID+' .c3-chart-arcs-title').node().innerHTML = total;
29 |         }
30 | 
31 |         self.transform = function(data) {
32 |             self.total = data.total;
33 |             self.columns = [];
34 |             Object.keys(data.status).forEach(function(key) {
35 |                 var label = key.charAt(0).toUpperCase() + key.slice(1);
36 |                 self.columns.unshift([label, data.status[key]]);
37 |             });
38 |             self.chart.load({columns: self.columns})
39 |             self.renderTotal();
40 |             self.update();
41 |         }
42 | 
43 |         self.on('mount', function() {
44 |             self.chart = c3.generate({
45 |                 bindto: '#donut' + self.UID,
46 |                 data: {
47 |                     columns: self.columns,
48 |                     type : 'donut',
49 |                     colors: self.colors
50 |                 },
51 |                 legend: {
52 |                    position: 'right',
53 |                    item: {
54 |                        onclick: function (d) { 
55 |                            self.chart.toggle(d);
56 |                            self.renderTotal();
57 |                        } 
58 |                    }
59 |                 },
60 |                 tooltip: {
61 |                     format: {
62 |                         value: function (value) { return value; }
63 |                     }
64 |                 },
65 |                 donut: {
66 |                     title: self.total,
67 |                     label: {
68 |                         show: false,
69 |                         format: function (value) { return value; }
70 |                     }
71 |                 }
72 |             });
73 |             $.getJSON('/stats/feeds', self.transform);
74 |             // first grab a snapshot through
75 | 
76 |             this.source.addEventListener("metrics_feeds", function (e) {
77 |                 self.transform(JSON.parse(e.data).data)
78 |             }, false);
79 |         })
80 |     </script>
81 | </fetcher-chart>
82 | 


--------------------------------------------------------------------------------
/views/layout.tpl:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html lang="en">
 3 | <head>
 4 | 	<meta charset="utf-8">
 5 | 	<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
 6 | 
 7 | 	<title>Monitor</title>
 8 | 	<meta name="description" content="Monitoring front-end">
 9 |   <!-- favicons and sundry -->
10 |   <link rel="stylesheet" href="http://fonts.googleapis.com/css?family=Roboto:300,400,500,700" type="text/css">
11 |   <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
12 |   <link type="text/css" rel="stylesheet" href="/css/materialize.min.css"  media="screen,projection"/>
13 |   <link type="text/css" rel="stylesheet" href="/css/c3.min.css"  media="screen,projection"/>
14 |   <link type="text/css" rel="stylesheet" href="/css/overrides.css"  media="screen,projection"/>
15 |   <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
16 |   <!--[if IE]>
17 |   <script src="/js/history.min.js"></script>
18 |   <script src="/js/eventsource.min.js"></script>
19 |   <![endif]-->
20 | </head>
21 | <body>
22 |  <nav class="blue darken-4" role="navigation">
23 |     <div class="nav-wrapper container"><a id="logo-container" href="#" class="brand-logo">RSS Feed Processor</a>
24 |       <ul class="right hide-on-med-and-down">
25 |         <li><a href="#"></a></li>
26 |       </ul>
27 | 
28 |       <ul id="nav-mobile" class="sidenav">
29 |         <li><a href="#"></a></li>
30 |       </ul>
31 |       <a href="#" data-target="nav-mobile" class="sidenav-trigger"><i class="material-icons">menu</i></a>
32 |     </div>
33 |   </nav>
34 |   <div class="section no-pad-bot" id="index-banner">
35 |     <div class="container">
36 |       <div class="row">
37 |         <div class="col s12 m6">
38 |           <div class="card hoverable small white">
39 |             <div class="card-content black-text">
40 |               <span class="card-title">Feeds</span>
41 |               <fetcher-chart></fetcher-chart>
42 |             </div>
43 |           </div>
44 |         </div>
45 |         <div class="col s12 m6">
46 |           <div class="card hoverable small white">
47 |             <div class="card-content black-text">
48 |               <span class="card-title">Fetch Status</span>
49 |               <fetch-table></fetch-table>
50 |             </div>
51 |           </div>
52 |         </div>
53 |       </div>
54 |       <div class="row">
55 |         <div class="col s12 m6">
56 |           <div class="card hoverable small white">
57 |             <div class="card-content black-text">
58 |               <span class="card-title">Parsed Entries</span>
59 |               <parser-chart></parser-chart>
60 |             </div>
61 |           </div>
62 |         </div>
63 |     </div>
64 |   </div>
65 |   <div class="container">
66 |     <div class="section">
67 |     </div>
68 |   </div>
69 | 
70 |   <script src="/js/d3.v3.min.js"></script>
71 |   <script src="/js/c3.min.js"></script>
72 |   <script src="/js/moment.min.js"></script>
73 |   <script src="/js/materialize.min.js"></script>
74 |   <script type="riot/tag" src="fetch-table.tag"></script>
75 |   <script type="riot/tag" src="fetcher-chart.tag"></script>
76 |   <script type="riot/tag" src="parser-chart.tag"></script>
77 |   <script src="/js/riot+compiler.min.js"></script>
78 |   <script src="/js/route.min.js"></script>
79 |   <script src="/js/zepto.min.js"></script>
80 |   <script>
81 |     var tagUID = 0;
82 |     var SharedMixin = {
83 |       observable: riot.observable(),
84 |       source: new EventSource('/events'),
85 |       init: function() {
86 |         this.UID = tagUID++
87 |       }
88 |     };
89 |     riot.compile(function() {
90 |       riot.mount('*')
91 |       route.start(true)
92 |     })
93 |   </script>
94 | </body>
95 | </html>
96 | 


--------------------------------------------------------------------------------
/static/js/route.min.js:
--------------------------------------------------------------------------------
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/README.md:
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 1 | # newsfeed-corpus
 2 | 
 3 | <img src="https://raw.githubusercontent.com/rcarmo/newsfeed-corpus/master/screenshots/2017-12-10.png" style="max-width: 100%; height: auto">
 4 | 
 5 | ## What
 6 | 
 7 | An ongoing attempt at tying together various ML techniques for trending topic and sentiment analysis, coupled with some experimental Python `async` coding, a distributed architecture, EventSource and lots of Docker goodness.
 8 | 
 9 | ## Why
10 | 
11 | I needed a readily available corpus for doing text analytics and sentiment analysis, so I decided to make one from my RSS feeds.
12 | 
13 | Things escalated quickly from there on several fronts:
14 | 
15 | * I decided I wanted this to be fully distributed, so I split the logic into several worker processes who coordinate via [Redis][redis] queues, orchestrated (and deployed) using `docker-compose`
16 | * I decided to take a ride on the bleeding edge and refactored everything to use `asyncio/uvloop` (as well as [Sanic][sanic] for the web front-end)
17 | * Rather than just consuming cognitive APIs, I also decided to implement a few NLP processing techniques (I started with a RAKE keyword extractor, and am now looking at NLTK-based tagging)
18 | * Instead of using React, I went with RiotJS, largely because I wanted to be able to deploy new visual components without a build step.
19 | * I also started using this as a "complex" Docker/Kubernetes demo, which meant some flashy features (like a graphical dashboard) started taking precedence.
20 | 
21 | ## How
22 | 
23 | This was originally the "dumb" part of the pipeline -- the corpus was fed into [Azure ML][aml] and the [Cognitive Services APIs][csa] for the nice stuff, so this started out mostly focusing fetching, parsing and filing away feeds.
24 | 
25 | It's now a rather more complex beast than I originally bargained for. Besides acting as a technology demonstrator for a number of things (including odds and ends like how to bundle NLTK datasets inside Docker) it is currently pushing the envelope on [my Python Docker containers][ap], which now feature Python 3.6.3 atop Ubuntu LTS.
26 | 
27 | ## ToDo
28 | 
29 | * [ ] move to [billboard.js](https://github.com/naver/billboard.js)
30 | * [ ] Add `auth0` support
31 | * [ ] Move to Cosmos DB
32 | 
33 | ### Architecture
34 | 
35 | * [x] `import.py` is a one-shot OPML importer (you should place your own `feeds.opml` in the root directory)
36 | * [ ] `metrics.py` keeps tabs on various stats and pushes them out every few seconds
37 | * [x] `scheduler.py` iterates through the database and queues feeds for fetching 
38 | * [x] `fetcher.py` fetches feeds and stores them on DocumentDB/MongoDB
39 | * [x] `parser.py` parses updated feeds into separate items and performs:
40 |       [x] language detection
41 |       [x] keyword extraction (using `langkit.py`)
42 |       [ ] basic sentiment analysis
43 | * [ ] `cortana.py` (WIP) will do topic detection and sentiment analysis
44 | * [x] `web.py` provides a simple web front-end for live status updates via SSE.
45 | 
46 | Processes are written to leverage `asyncio/uvloop` and interact via [Redis][redis] (previously they interacted via [ZeroMQ][0mq], but I'm already playing around with deploying this on [Swarm and an Azure VM scaleset][swarm]). 
47 | 
48 | A Docker compose file is supplied for running the entire stack locally - you can tweak it up to version `3` and get things running on Swarm if you manually push the images to a private registry first, but I'll automate that once things are a little more stable.
49 | 
50 | [0mq]: https://github.com/aio-libs/aiozmq
51 | [csa]: https://www.microsoft.com/cognitive-services
52 | [aml]: https://studio.azureml.net
53 | [ap]: https://github.com/rcarmo/alpine-python
54 | [swarm]: https://github.com/rcarmo/azure-docker-swarm-cluster
55 | [sanic]: http://sanic.readthedocs.io
56 | [piku]: https://github.com/rcarmo/piku
57 | [redis]: http://redis.io
58 | 


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/static/css/c3.css:
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  1 | /*-- Chart --*/
  2 | .c3 svg {
  3 |   font: 10px sans-serif;
  4 |   -webkit-tap-highlight-color: transparent; }
  5 | 
  6 | .c3 path, .c3 line {
  7 |   fill: none;
  8 |   stroke: #000; }
  9 | 
 10 | .c3 text {
 11 |   -webkit-user-select: none;
 12 |   -moz-user-select: none;
 13 |   user-select: none; }
 14 | 
 15 | .c3-legend-item-tile,
 16 | .c3-xgrid-focus,
 17 | .c3-ygrid,
 18 | .c3-event-rect,
 19 | .c3-bars path {
 20 |   shape-rendering: crispEdges; }
 21 | 
 22 | .c3-chart-arc path {
 23 |   stroke: #fff; }
 24 | 
 25 | .c3-chart-arc text {
 26 |   fill: #fff;
 27 |   font-size: 13px; }
 28 | 
 29 | /*-- Axis --*/
 30 | /*-- Grid --*/
 31 | .c3-grid line {
 32 |   stroke: #aaa; }
 33 | 
 34 | .c3-grid text {
 35 |   fill: #aaa; }
 36 | 
 37 | .c3-xgrid, .c3-ygrid {
 38 |   stroke-dasharray: 3 3; }
 39 | 
 40 | /*-- Text on Chart --*/
 41 | .c3-text.c3-empty {
 42 |   fill: #808080;
 43 |   font-size: 2em; }
 44 | 
 45 | /*-- Line --*/
 46 | .c3-line {
 47 |   stroke-width: 1px; }
 48 | 
 49 | /*-- Point --*/
 50 | .c3-circle._expanded_ {
 51 |   stroke-width: 1px;
 52 |   stroke: white; }
 53 | 
 54 | .c3-selected-circle {
 55 |   fill: white;
 56 |   stroke-width: 2px; }
 57 | 
 58 | /*-- Bar --*/
 59 | .c3-bar {
 60 |   stroke-width: 0; }
 61 | 
 62 | .c3-bar._expanded_ {
 63 |   fill-opacity: 1;
 64 |   fill-opacity: 0.75; }
 65 | 
 66 | /*-- Focus --*/
 67 | .c3-target.c3-focused {
 68 |   opacity: 1; }
 69 | 
 70 | .c3-target.c3-focused path.c3-line, .c3-target.c3-focused path.c3-step {
 71 |   stroke-width: 2px; }
 72 | 
 73 | .c3-target.c3-defocused {
 74 |   opacity: 0.3 !important; }
 75 | 
 76 | /*-- Region --*/
 77 | .c3-region {
 78 |   fill: steelblue;
 79 |   fill-opacity: .1; }
 80 | 
 81 | /*-- Brush --*/
 82 | .c3-brush .extent {
 83 |   fill-opacity: .1; }
 84 | 
 85 | /*-- Select - Drag --*/
 86 | /*-- Legend --*/
 87 | .c3-legend-item {
 88 |   font-size: 12px; }
 89 | 
 90 | .c3-legend-item-hidden {
 91 |   opacity: 0.15; }
 92 | 
 93 | .c3-legend-background {
 94 |   opacity: 0.75;
 95 |   fill: white;
 96 |   stroke: lightgray;
 97 |   stroke-width: 1; }
 98 | 
 99 | /*-- Title --*/
100 | .c3-title {
101 |   font: 14px sans-serif; }
102 | 
103 | /*-- Tooltip --*/
104 | .c3-tooltip-container {
105 |   z-index: 10; }
106 | 
107 | .c3-tooltip {
108 |   border-collapse: collapse;
109 |   border-spacing: 0;
110 |   background-color: #fff;
111 |   empty-cells: show;
112 |   -webkit-box-shadow: 7px 7px 12px -9px #777777;
113 |   -moz-box-shadow: 7px 7px 12px -9px #777777;
114 |   box-shadow: 7px 7px 12px -9px #777777;
115 |   opacity: 0.9; }
116 | 
117 | .c3-tooltip tr {
118 |   border: 1px solid #CCC; }
119 | 
120 | .c3-tooltip th {
121 |   background-color: #aaa;
122 |   font-size: 14px;
123 |   padding: 2px 5px;
124 |   text-align: left;
125 |   color: #FFF; }
126 | 
127 | .c3-tooltip td {
128 |   font-size: 13px;
129 |   padding: 3px 6px;
130 |   background-color: #fff;
131 |   border-left: 1px dotted #999; }
132 | 
133 | .c3-tooltip td > span {
134 |   display: inline-block;
135 |   width: 10px;
136 |   height: 10px;
137 |   margin-right: 6px; }
138 | 
139 | .c3-tooltip td.value {
140 |   text-align: right; }
141 | 
142 | /*-- Area --*/
143 | .c3-area {
144 |   stroke-width: 0;
145 |   opacity: 0.2; }
146 | 
147 | /*-- Arc --*/
148 | .c3-chart-arcs-title {
149 |   dominant-baseline: middle;
150 |   font-size: 1.3em; }
151 | 
152 | .c3-chart-arcs .c3-chart-arcs-background {
153 |   fill: #e0e0e0;
154 |   stroke: none; }
155 | 
156 | .c3-chart-arcs .c3-chart-arcs-gauge-unit {
157 |   fill: #000;
158 |   font-size: 16px; }
159 | 
160 | .c3-chart-arcs .c3-chart-arcs-gauge-max {
161 |   fill: #777; }
162 | 
163 | .c3-chart-arcs .c3-chart-arcs-gauge-min {
164 |   fill: #777; }
165 | 
166 | .c3-chart-arc .c3-gauge-value {
167 |   fill: #000;
168 |   /*  font-size: 28px !important;*/ }
169 | 
170 | .c3-chart-arc.c3-target g path {
171 |   opacity: 1; }
172 | 
173 | .c3-chart-arc.c3-target.c3-focused g path {
174 |   opacity: 1; }
175 | 


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/langkit.py:
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  1 | #!/bin/env python3
  2 | # Rui Carmo, 2017
  3 | # Miscellaneous helpers for NLTK
  4 | 
  5 | from operator import itemgetter
  6 | from nltk import FreqDist
  7 | from nltk.corpus import stopwords
  8 | from nltk.tokenize import sent_tokenize, word_tokenize, RegexpTokenizer
  9 | from nltk.stem.porter import PorterStemmer
 10 | from nltk.stem import RSLPStemmer
 11 | from sys import maxunicode
 12 | from unicodedata import category
 13 | from logging import getLogger
 14 | from traceback import format_exc
 15 | 
 16 | log = getLogger()
 17 | 
 18 | STOPWORDS = {'en': stopwords.words('english'), 
 19 |              'pt': stopwords.words('portuguese')}
 20 | 
 21 | STEMMERS = {'en': PorterStemmer(),
 22 |             'pt': RSLPStemmer()}
 23 | 
 24 | # RAKE extractor - requires python -m nltk.downloader stopwords punkt 
 25 | 
 26 | # Build a full unicode punctuation dictionary based on glyph category 
 27 | # (strings.punctuation doesn't cut it)
 28 | PUNCTUATION = dict.fromkeys([i for i in range(maxunicode) if category(chr(i)).startswith('P')])
 29 | 
 30 | def _extract_phrases(sentences, language="english"):
 31 |     """Extract phrases from a list of sentences"""
 32 | 
 33 |     def is_punctuation(word):
 34 |         return len(word) == 1 and ord(word) in PUNCTUATION
 35 | 
 36 |     lang_stopwords = set(stopwords.words(language))
 37 | 
 38 |     phrase_list = []
 39 |     for sentence in sentences:
 40 |         # NOTE: word_tokenize can't quote cope with rich quotes, 
 41 |         # so we'll need to clean up after it deals with punctuation
 42 |         words = map(lambda x: "|" if x in lang_stopwords else x, word_tokenize(sentence.lower(), language))
 43 |         phrase = []
 44 |         for word in words:
 45 |             if word == "|" or is_punctuation(word):
 46 |                 if len(phrase) > 0:
 47 |                     phrase_list.append(phrase)
 48 |                     phrase = []
 49 |             else:
 50 |                 phrase.append(word.translate(PUNCTUATION)) # remove unicode quotes
 51 |     return phrase_list
 52 | 
 53 | 
 54 | def _score_words(phrase_list):
 55 |     """Score words based on frequency"""
 56 | 
 57 |     def is_numeric(word):
 58 |         # NOTE: this is a quick and dirty way to cope with multi-digit figures
 59 |         # but will be confused by currency
 60 |         try:
 61 |             int(word.replace(',', '').replace('.', ''))
 62 |             return True
 63 |         except ValueError:
 64 |             return False
 65 | 
 66 |     word_freq = FreqDist()
 67 |     word_degree = FreqDist()
 68 | 
 69 |     for phrase in phrase_list:
 70 |         degree = len(list(filter(lambda x: not is_numeric(x), phrase))) - 1
 71 |         for word in phrase:
 72 |             word_freq[word] += 1
 73 |             word_degree[word] += degree
 74 | 
 75 |     for word in word_freq.keys():
 76 |         word_degree[word] = word_degree[word] + word_freq[word] # itself
 77 |     
 78 |     # word score = deg(w) / freq(w)
 79 |     word_scores = {}
 80 |     for word in word_freq.keys():
 81 |         word_scores[word] = word_degree[word] / word_freq[word]
 82 |     return word_scores
 83 | 
 84 | 
 85 | def _score_phrases(phrase_list, word_scores):
 86 |     """Score a phrase by tallying individual word scores"""
 87 | 
 88 |     phrase_scores = {}
 89 |     for phrase in phrase_list:
 90 |         phrase_score = 0
 91 |         # cumulative score of words
 92 |         for word in phrase:
 93 |             phrase_score += word_scores[word]
 94 |         phrase_scores[" ".join(phrase)] = phrase_score
 95 |     return phrase_scores
 96 | 
 97 | 
 98 | def extract_keywords(text, language="en", scores=False):
 99 |     """RAKE extractor"""
100 | 
101 |     try:
102 |         lang = {"en": "english",
103 |                 "pt": "portuguese"}[language]
104 |     except KeyError:
105 |         log.error(format_exc())
106 |         return
107 | 
108 |     sentences = sent_tokenize(text, lang)
109 |     phrase_list = _extract_phrases(sentences, lang)
110 |     word_scores = _score_words(phrase_list)
111 |     phrase_scores = _score_phrases(phrase_list, word_scores)
112 |     sorted_scores = sorted(phrase_scores.items(), key=itemgetter(1), reverse=True)
113 |     if scores:
114 |         return sorted_scores
115 |     else:
116 |         return list(map(lambda x: x[0], sorted_scores))
117 | 
118 | 
119 | def tokenize(plaintext, language):
120 |     """tokenize into stemmed tokens"""
121 | 
122 |     try:
123 |         stop_words = STOPWORDS[language]
124 |         stemmer = STEMMERS[language]
125 |     except KeyError:
126 |         log.error(format_exc())
127 |         return
128 | 
129 |     # Tokenize, remove stop words and stem
130 |     tokenizer = RegexpTokenizer(r'\w+')
131 |     tokens = [stemmer.stem(i) for i in tokenizer.tokenize(plaintext.lower()) if not i in stop_words]
132 |     return tokens


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/web.py:
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  1 | #!/bin/env python3
  2 | 
  3 | """ Web server """
  4 | 
  5 | from config import (BIND_ADDRESS, DATABASE_NAME, DEBUG, HTTP_PORT,
  6 |                     MONGO_SERVER, log)
  7 | from datetime import datetime, timedelta
  8 | from functools import lru_cache
  9 | from multiprocessing import cpu_count
 10 | from traceback import format_exc
 11 | 
 12 | from aiocache import SimpleMemoryCache, cached
 13 | from common import (REDIS_NAMESPACE, connect_redis, dequeue, subscribe,
 14 |                     unsubscribe)
 15 | from mako.template import Template
 16 | from metrics import database_entries, database_feeds, tree_split
 17 | from motor.motor_asyncio import AsyncIOMotorClient
 18 | from sanic import Sanic
 19 | from sanic.exceptions import FileNotFound, NotFound, RequestTimeout
 20 | from sanic.response import html, json, stream, text
 21 | from sanic.server import HttpProtocol
 22 | from ujson import dumps
 23 | 
 24 | app = Sanic(__name__)
 25 | layout = Template(filename='views/layout.tpl')
 26 | 
 27 | redis = None
 28 | db = None
 29 | 
 30 | 
 31 | @app.route('/', methods=['GET'])
 32 | async def homepage(req):
 33 |     """Main page"""
 34 |     return html(layout.render(timestr=datetime.now().strftime("%H:%M:%S.%f")))
 35 | 
 36 | 
 37 | @app.route('/test', methods=['GET'])
 38 | async def get_name(req):
 39 |     """Endpoint for front-end load testing using wrk.
 40 |        Reference measurement: 25K requests/s on 4 cores of a 2.9GHz i5"""
 41 |     return text("test")
 42 | 
 43 | 
 44 | @app.route('/events')
 45 | async def sse(request):
 46 |     async def streaming_fn(response):
 47 |         i = 1
 48 |         [ch] = await subscribe(redis, 'ui')
 49 |         log.debug("%s subscribed to UI events" % request.ip)
 50 |         while (await ch.wait_message()):
 51 |             msg = await ch.get_json()
 52 |             s = ''
 53 |             if 'event' in msg:
 54 |                 s = s + 'event: ' + msg['event'] + '\r\n' 
 55 |             s = s + 'data: ' + dumps(msg) + '\r\n\r\n'
 56 |             try:
 57 |                 response.write(s.encode())
 58 |                 i += 1
 59 |             except Exception:
 60 |                 log.error(format_exc())
 61 |                 await unsubscribe(redis, 'ui')
 62 |                 log.debug("%s unsubscribed from UI events" % request.ip)
 63 |                 break
 64 |     return stream(streaming_fn, content_type='text/event-stream')
 65 | 
 66 | 
 67 | @app.route('/status', methods=['GET'])
 68 | async def get_status(req):
 69 |     """Status endpoint for the web UI - will expose all counters."""
 70 | 
 71 |     return json({
 72 |         "feed_count": await redis.hget(REDIS_NAMESPACE + 'status', 'feed_count'),
 73 |         "item_count": await redis.hget(REDIS_NAMESPACE + 'status', 'item_count')
 74 |     })
 75 | 
 76 | 
 77 | @app.route('/stats/feeds', methods=['GET'])
 78 | async def handler(req):
 79 |     return json(tree_split(await database_feeds(db), drop_last=1)['database']['feeds'])
 80 | 
 81 | @app.route('/stats/entries', methods=['GET'])
 82 | async def handler(req):
 83 |     return json(tree_split(await database_entries(db), drop_last=1)['database']['entries'])
 84 | 
 85 | 
 86 | @app.route('/feeds/<order>', methods=['GET'])
 87 | @app.route('/feeds/<order>/<last_id>', methods=['GET'])
 88 | @cached(ttl=20)
 89 | async def get_feeds(req, order, last_id=None):
 90 |     """Paged navigation of feeds - experimental, using aiocache to lessen database hits.
 91 |        Right now this clocks in at 10K requests/s when using only 2 cores on my i5 Mac."""
 92 | 
 93 |     limit = 50
 94 |     fields = {'_id': 1, 'title': 1, 'last_fetched': 1, 'last_status': 1}
 95 |     if last_id:
 96 |         data = await db.feeds.find({last_id < '_id'},
 97 |                                    fields).sort(order).limit(limit).to_list(limit)
 98 |     else:
 99 |         data = await db.feeds.find({},
100 |                                    fields).sort(order).limit(limit).to_list(limit)
101 |     return json(data)
102 | 
103 | 
104 | # Add a route-specific timeout for the SSE handler
105 | class CustomHttpProtocol(HttpProtocol):
106 |     def on_message_complete(self):
107 |         if self.url == b'/events':
108 |             self.request_timeout = 1000
109 |         super().on_message_complete()
110 | 
111 | 
112 | # Map static assets
113 | app.static('/', './static')
114 | 
115 | @app.listener('after_server_start')
116 | async def init_connections(sanic, loop):
117 |     """Bind the database and Redis client to Sanic's event loop."""
118 | 
119 |     global redis, db
120 |     redis = await connect_redis()
121 |     motor = AsyncIOMotorClient(MONGO_SERVER, io_loop=loop)
122 |     db = motor[DATABASE_NAME]
123 | 
124 | 
125 | if __name__ == '__main__':
126 |     log.debug("Beginning run.")
127 |     app.run(host=BIND_ADDRESS, port=HTTP_PORT, workers=cpu_count(), debug=DEBUG, protocol=CustomHttpProtocol)
128 | 


--------------------------------------------------------------------------------
/fetcher.py:
--------------------------------------------------------------------------------
  1 | #!/usr/bin/env python3
  2 | 
  3 | """ Feed fetcher """
  4 | 
  5 | from asyncio import (Semaphore, ensure_future, gather, get_event_loop,
  6 |                      set_event_loop_policy, sleep)
  7 | from config import (CHECK_INTERVAL, DATABASE_NAME, FETCH_INTERVAL,
  8 |                     MAX_CONCURRENT_REQUESTS, MONGO_SERVER, log)
  9 | from datetime import datetime, timedelta
 10 | from hashlib import sha1
 11 | from traceback import format_exc
 12 | 
 13 | from aiohttp import ClientSession, TCPConnector
 14 | from common import connect_redis, dequeue, enqueue, publish, retry
 15 | from motor.motor_asyncio import AsyncIOMotorClient
 16 | from pymongo.errors import OperationFailure
 17 | from uvloop import EventLoopPolicy
 18 | 
 19 | @retry(10, OperationFailure, 3)
 20 | async def do_update(collection, *args, **kwargs):
 21 |     collection.update_one(*args, **kwargs)
 22 | 
 23 | async def fetch_one(session, feed, client, database, queue):
 24 |     """Fetch a single feed"""
 25 |     url = feed['url']
 26 |     checksum = feed.get('checksum', None)
 27 |     changed = False
 28 |     headers = {}
 29 | 
 30 |     await publish(queue, 'ui', {'event': 'fetch_one', 'url':url})
 31 |     log.debug("Fetching %s", url)
 32 | 
 33 |     if 'etag' in feed:
 34 |         headers['etag'] = feed['etag']
 35 |     if 'last_modified' in feed:
 36 |         headers['if-modified-since'] = feed['last_modified']
 37 | 
 38 |     try:
 39 |         async with session.get(url, headers=headers) as response:
 40 |             text = await response.text()
 41 |             # TODO: check behavior for 301/302
 42 |             update = {
 43 |                 'last_status': response.status,
 44 |                 'last_fetched': datetime.now(),
 45 |             }
 46 |             await publish(queue, 'ui', {'event':'fetch_result', 
 47 |                                         'url':url, 
 48 |                                         'status': response.status})
 49 |             if response.status == 200:
 50 |                 if 'checksum' not in feed or feed['checksum'] != checksum:
 51 |                     changed = True
 52 |                 update['raw'] = text
 53 |                 update['checksum'] = sha1(text.encode('utf-8')).hexdigest()
 54 | 
 55 |             if 'etag' in response.headers:
 56 |                 update['etag'] = response.headers['etag']
 57 | 
 58 |             if 'last-modified' in response.headers:
 59 |                 update['last_modified'] = response.headers['last-modified']
 60 | 
 61 |             await do_update(database.feeds, {'url': url}, {'$set': update})
 62 | 
 63 |             if changed:
 64 |                 await enqueue(queue, 'parser', {
 65 |                     "_id": feed['_id'],
 66 |                     "scheduled_at": datetime.now()
 67 |                 })
 68 |             return feed, response.status
 69 | 
 70 |     except Exception:
 71 |         log.error(format_exc())
 72 |         await do_update(database.feeds, {'url': url},
 73 |                                         {'$set': {'last_status': 0,
 74 |                                                   'last_fetched': datetime.now()}})
 75 |         return feed, 0
 76 | 
 77 | 
 78 | async def throttle(sem, session, feed, client, database, queue):
 79 |     """Throttle number of simultaneous requests"""
 80 | 
 81 |     async with sem:
 82 |         res = await fetch_one(session, feed, client, database, queue)
 83 |         log.info("%s: %d", res[0]['url'], res[1])
 84 | 
 85 | 
 86 | async def fetcher(database):
 87 |     """Fetch all the feeds"""
 88 | 
 89 |     # disable certificate validation to cope with self-signed certificates in some feed back-ends
 90 |     client = ClientSession(connector=TCPConnector(verify_ssl=False))
 91 |     sem = Semaphore(MAX_CONCURRENT_REQUESTS)
 92 | 
 93 |     queue = await connect_redis()
 94 |     while True:
 95 |         log.info("Beginning run.")
 96 |         tasks = []
 97 |         threshold = datetime.now() - timedelta(seconds=FETCH_INTERVAL)
 98 |         async with ClientSession() as session:
 99 |             while True:
100 |                 try:
101 |                     job = await dequeue(queue, 'fetcher')
102 |                     feed = await database.feeds.find_one({'_id': job['_id']})
103 |                     last_fetched = feed.get('last_fetched', threshold)
104 |                     if last_fetched <= threshold:
105 |                         task = ensure_future(throttle(sem, session, feed, client, database, queue))
106 |                         tasks.append(task)
107 |                 except Exception:
108 |                     log.error(format_exc())
109 |                     break
110 |             responses = gather(*tasks)
111 |             await responses
112 |             log.info("Run complete, sleeping %ds...", CHECK_INTERVAL)
113 |             await sleep(CHECK_INTERVAL)
114 |     queue.close()
115 |     await queue.wait_closed()
116 | 
117 | 
118 | def main():
119 |     """Setup coroutines and kickstart fetcher"""
120 |     set_event_loop_policy(EventLoopPolicy())
121 | 
122 |     motor = AsyncIOMotorClient(MONGO_SERVER)
123 |     database = motor[DATABASE_NAME]
124 | 
125 |     loop = get_event_loop()
126 |     ensure_future(fetcher(database))
127 |     try:
128 |         loop.run_forever()
129 |     finally:
130 |         loop.close()
131 | 
132 | 
133 | if __name__ == '__main__':
134 |     main()
135 | 


--------------------------------------------------------------------------------
/parser.py:
--------------------------------------------------------------------------------
  1 | #!/usr/bin/env python3
  2 | 
  3 | """ Feed parser """
  4 | 
  5 | from asyncio import get_event_loop, set_event_loop_policy
  6 | from config import (DATABASE_NAME, MONGO_SERVER, REDIS_NAMESPACE, get_profile,
  7 |                     log)
  8 | from datetime import datetime
  9 | from hashlib import sha1
 10 | from time import mktime
 11 | from traceback import format_exc
 12 | 
 13 | from bs4 import BeautifulSoup
 14 | from common import connect_redis, dequeue, enqueue, safe_id, publish
 15 | from feedparser import parse as feed_parse
 16 | from gensim import corpora, models
 17 | from langdetect import detect
 18 | from langkit import extract_keywords, tokenize
 19 | from motor.motor_asyncio import AsyncIOMotorClient
 20 | from uvloop import EventLoopPolicy
 21 | 
 22 | 
 23 | def get_entry_content(entry):
 24 |     """Select the best content from an entry"""
 25 | 
 26 |     candidates = entry.get('content', [])
 27 |     if 'summary_detail' in entry:
 28 |         candidates.append(entry.summary_detail)
 29 |     for candidate in candidates:
 30 |         if hasattr(candidate, 'type'): # speedparser doesn't set this
 31 |             if 'html' in candidate.type:
 32 |                 return candidate.value
 33 |     if candidates:
 34 |         try:
 35 |             return candidates[0].value
 36 |         except AttributeError: # speedparser does this differently
 37 |             return candidates[0]['value']
 38 |     return ''
 39 | 
 40 | 
 41 | def get_entry_date(entry):
 42 |     """Select the best timestamp for an entry"""
 43 | 
 44 |     for header in ['modified', 'issued', 'created']:
 45 |         when = entry.get(header+'_parsed', None)
 46 |         if when:
 47 |             return datetime.fromtimestamp(mktime(when))
 48 |     return datetime.now()
 49 | 
 50 | 
 51 | def get_entry_id(entry):
 52 |     """Get a useful id from a feed entry"""
 53 | 
 54 |     if 'id' in entry and entry.id:
 55 |         if isinstance(entry.id, dict):
 56 |             return entry.id.values()[0]
 57 |         return entry.id
 58 | 
 59 |     content = get_entry_content(entry)
 60 |     if content:
 61 |         return sha1(content.encode('utf-8')).hexdigest()
 62 |     if 'link' in entry:
 63 |         return entry.link
 64 |     if 'title' in entry:
 65 |         return sha1(entry.title.encode('utf-8')).hexdigest()
 66 | 
 67 | 
 68 | def get_plaintext(html):
 69 |     """Scrub out tags and extract plaintext"""
 70 | 
 71 |     soup = BeautifulSoup(html)
 72 |     for script in soup(["script", "style"]):
 73 |         script.extract()
 74 |     return soup.get_text()
 75 | 
 76 | 
 77 | def lda(tokens):
 78 |     # Perform Latent Dirchelet Allocation
 79 |     dictionary = corpora.Dictionary(tokens)
 80 |     corpus = [dictionary.doc2bow(token) for token in tokens]
 81 |     lda_model = gensim.models.ldamodel.LdaModel(corpus, num_topics=3, id2word=dictionary, passes=20)
 82 |     return lda_model
 83 | 
 84 | 
 85 | async def parse(database, feed, redis):
 86 |     """Parse a feed into its constituent entries"""
 87 | 
 88 |     result = feed_parse(feed['raw'])
 89 |     if not len(result.entries):
 90 |         log.info('%s: No valid entries', feed['_id'])
 91 |         return
 92 |     else:
 93 |         log.info('%s: %d entries', feed['_id'], len(result.entries))
 94 |         # TODO: turn this into a bulk insert
 95 |         for entry in result.entries:
 96 |             log.debug(entry.link)
 97 |             when = get_entry_date(entry)
 98 |             body = get_entry_content(entry)
 99 |             plaintext = entry.title + " " + get_plaintext(body)
100 |             lang = detect(plaintext)
101 | 
102 |             try:
103 |                 keywords = extract_keywords(plaintext, lang, scores=True)[:10]
104 |                 tokens = list(set(tokenize(plaintext, lang)))
105 |             except (KeyError, TypeError):
106 |                 keywords = None
107 |                 tokens = None
108 |             await publish(redis, 'ui', {'event':'new_entry', 'url':entry.link})
109 |             await database.entries.update_one({'_id': safe_id(entry.link)},
110 |                                               {'$set': {"date": when,
111 |                                                         "title": entry.title,
112 |                                                         "body": body,
113 |                                                         "plaintext": plaintext,
114 |                                                         "lang": lang,
115 |                                                         "keywords": keywords,
116 |                                                         "tokens": tokens,
117 |                                                         "url": entry.link}},
118 |                                               upsert=True)
119 | 
120 | 
121 | async def item_handler(database):
122 |     """Break down feeds into individual items"""
123 | 
124 |     redis = await connect_redis()
125 |     log.info("Beginning run.")
126 |     while True:
127 |         try:
128 |             job = await(dequeue(redis, 'parser'))
129 |             log.debug(job)
130 |             feed = await database.feeds.find_one({'_id': job['_id']})
131 |             if feed:
132 |                 await parse(database, feed, redis)
133 |         except Exception:
134 |             log.error(format_exc())
135 |         except KeyboardInterrupt:
136 |             break
137 |         await redis.hset(REDIS_NAMESPACE + 'status', 'item_count', await database.items.count())
138 |     redis.close()
139 |     await redis.wait_closed()
140 | 
141 | 
142 | def main():
143 |     """Main loop"""
144 | 
145 |     set_event_loop_policy(EventLoopPolicy())
146 |     conn = AsyncIOMotorClient(MONGO_SERVER)
147 |     database = conn[DATABASE_NAME]
148 |     loop = get_event_loop()
149 |     try:
150 |         loop.run_until_complete(item_handler(database))
151 |     finally:
152 |         loop.close()
153 | 
154 | if __name__ == '__main__':
155 |     main()
156 | 


--------------------------------------------------------------------------------
/metrics.py:
--------------------------------------------------------------------------------
  1 | #!/bin/env python3
  2 | 
  3 | """ Metrics agent """
  4 | 
  5 | from asyncio import ensure_future, sleep
  6 | from config import (BIND_ADDRESS, DATABASE_NAME, DEBUG, HTTP_PORT,
  7 |                     METRICS_INTERVAL, MONGO_SERVER, log)
  8 | from copy import deepcopy
  9 | from datetime import datetime, timedelta
 10 | from functools import lru_cache, reduce
 11 | from multiprocessing import cpu_count
 12 | from time import time
 13 | 
 14 | from aiocache import SimpleMemoryCache, cached
 15 | from common import REDIS_NAMESPACE, connect_redis, dequeue, publish, subscribe
 16 | from mako.template import Template
 17 | from motor.motor_asyncio import AsyncIOMotorClient
 18 | from sanic import Sanic
 19 | from sanic.exceptions import FileNotFound, NotFound
 20 | from sanic.response import html, json, stream, text
 21 | from sanic.server import HttpProtocol
 22 | from ujson import dumps
 23 | 
 24 | app = Sanic(__name__)
 25 | redis = None
 26 | db = None
 27 | 
 28 | # Metrics in Prometheus format
 29 | metrics = {
 30 |     "database_feeds_total": None,
 31 |     "database_feeds_status_error_total": None,
 32 |     "database_feeds_status_unreachable_total": None,
 33 |     "database_feeds_status_inaccessible_total": None,
 34 |     "database_feeds_status_redirected_total": None,
 35 |     "database_feeds_status_fetched_total": None,
 36 |     "database_feeds_status_pending_total": None,
 37 |     "database_entries_total": None,
 38 |     "database_entries_language_en": None,
 39 |     "database_entries_language_pt": None,
 40 |     "database_entries_language_other": None,
 41 |     "fetcher_requests_total": None,
 42 | }
 43 | 
 44 | @app.route('/', methods=['GET'])
 45 | async def homepage(req):
 46 |     """Main page"""
 47 |     return ""
 48 | 
 49 | 
 50 | @app.route('/status', methods=['GET'])
 51 | async def get_status(req):
 52 |     """Status endpoint for the web UI - will expose all counters."""
 53 | 
 54 |     return json({
 55 |         "feed_count": await redis.hget(REDIS_NAMESPACE + 'status', 'feed_count'),
 56 |         "item_count": await redis.hget(REDIS_NAMESPACE + 'status', 'item_count')
 57 |     })
 58 | 
 59 | 
 60 | async def database_feeds(db):
 61 |     """Get database metrics pertaining to feeds"""
 62 | 
 63 |     metrics = {
 64 |         "database_feeds_count_total": await db.feeds.count(),
 65 |         "database_feeds_status_error_total": 0,
 66 |         "database_feeds_status_unreachable_total": 0,
 67 |         "database_feeds_status_inaccessible_total": 0,
 68 |         "database_feeds_status_redirected_total": 0,
 69 |         "database_feeds_status_fetched_total": 0,
 70 |         "database_feeds_status_pending_total": 0,
 71 |     }
 72 |     cursor = db.feeds.aggregate([{"$group": {"_id": "$last_status", "count": {"$sum": 1}}}, 
 73 |                                  {"$sort":{"count":-1}}])
 74 |     counts = {i['_id']: i['count'] async for i in cursor}
 75 |     for k,v in counts.items():
 76 |         if k==None:
 77 |             metrics['database_feeds_status_pending_total'] += v
 78 |         elif k==0:
 79 |             metrics['database_feeds_status_unreachable_total'] += v
 80 |         elif 0 < k < 300:
 81 |             metrics['database_feeds_status_fetched_total'] += v
 82 |         elif 300 <= k < 400:
 83 |             metrics['database_feeds_status_redirected_total'] += v
 84 |         elif 400 <= k < 500:
 85 |             metrics['database_feeds_status_inaccessible_total'] += v
 86 |         else:
 87 |             metrics['database_feeds_status_error_total'] += v
 88 |     return metrics
 89 | 
 90 | 
 91 | async def database_entries(db):
 92 |     """Get database metrics pertaining to entries"""
 93 | 
 94 |     metrics = {
 95 |         "database_entries_count_total": await db.entries.count(),
 96 |         "database_entries_lang_en_total": 0,
 97 |         "database_entries_lang_pt_total": 0,
 98 |         "database_entries_lang_other_total": 0
 99 |     }
100 |     cursor = db.entries.aggregate([{"$group": {"_id": "$lang", "count": {"$sum": 1}}}, 
101 |                                    {"$sort":{"count":-1}}])
102 |     counts = {i['_id']: i['count'] async for i in cursor}
103 |     for k, v in counts.items():
104 |         if k in ['en', 'pt']:
105 |             metrics['database_entries_lang_' + k + '_total'] += v
106 |         else:
107 |             metrics['database_entries_lang_other_total'] += v
108 |     return metrics
109 | 
110 | 
111 | 
112 | @app.route('/stats/post_times', methods=['GET'])
113 | async def handler(req):
114 |     # TODO: this aggregation is broken
115 |     cursor = db.entries.aggregate([{"$match":{"date":{"$gte": datetime.now() - timedelta(days=7), "$lt": datetime.now()}}},
116 |                                    {"$group":{"_id": {"lang":"$lang", "hour": { "$hour": "$date"}},"count":{"$sum": "$count"}}},
117 |                                    {"$sort":{"hour":1}}])
118 |     
119 | 
120 | def tree_split(flat, drop_last=0):
121 | 
122 |     def merge(a, b):
123 |         if not isinstance(b, dict):
124 |             return b
125 |         for k, v in b.items():
126 |             if k in a and isinstance(a[k], dict):
127 |                 merge(a[k], v)
128 |             elif v:
129 |                 a[k] = deepcopy(v)
130 |         return a
131 | 
132 |     segments = []
133 |     for k, v in flat.items():
134 |         parts = k.split('_')[:-drop_last]
135 |         seg = {parts[-1:][0]: v}
136 |         for part in reversed(parts[:-1]):
137 |             seg = {part: seg}
138 |         segments.append(seg)
139 | 
140 |     return reduce(merge, segments)
141 |     
142 | 
143 | async def monitor_loop():
144 |     global redis, db, metrics
145 |     while True:
146 |         log.debug("updating metrics")
147 |         metrics.update(await database_feeds(db))
148 |         metrics.update(await database_entries(db))
149 |         tree = tree_split(metrics, drop_last=1)
150 |         #await redis.mset('metrics:timestamp', time(), *{'metrics:' + k:v for k,v in metrics.items() if v})
151 |         await publish(redis, 'ui', {'event': 'metrics_feeds', 'data': tree['database']['feeds']})
152 |         await publish(redis, 'ui', {'event': 'metrics_entries', 'data': tree['database']['entries']})
153 |         await sleep(METRICS_INTERVAL)
154 |     redis.close()
155 |     await redis.wait_closed()
156 | 
157 | 
158 | @app.listener('after_server_start')
159 | async def init_connections(sanic, loop):
160 |     """Bind the database and Redis client to Sanic's event loop."""
161 | 
162 |     global redis, db
163 |     redis = await connect_redis()
164 |     motor = AsyncIOMotorClient(MONGO_SERVER, io_loop=loop)
165 |     db = motor[DATABASE_NAME]
166 |     log.debug("adding task")
167 |     app.add_task(loop.create_task(monitor_loop()))
168 | 
169 | 
170 | if __name__ == '__main__':
171 |     log.debug("Beginning run.")
172 |     app.run(host=BIND_ADDRESS, port=HTTP_PORT, debug=DEBUG)
173 | 


--------------------------------------------------------------------------------
/static/js/history.min.js:
--------------------------------------------------------------------------------
 1 | /*!
 2 |  * History API JavaScript Library v4.2.4
 3 |  *
 4 |  * Support: IE8+, FF3+, Opera 9+, Safari, Chrome and other
 5 |  *
 6 |  * Copyright 2011-2015, Dmitrii Pakhtinov ( spb.piksel@gmail.com )
 7 |  *
 8 |  * http://spb-piksel.ru/
 9 |  *
10 |  * Dual licensed under the MIT and GPL licenses:
11 |  *   http://www.opensource.org/licenses/mit-license.php
12 |  *   http://www.gnu.org/licenses/gpl.html
13 |  *
14 |  * Update: 2015-10-16 22:16
15 |  */
16 | (function(m){if("function"===typeof define&&define.amd){var w="[history"+(new Date).getTime()+"]",j=requirejs.onError;m.toString=function(){return w};requirejs.onError=function(m){-1===m.message.indexOf(w)&&j.call(requirejs,m)};define([],m)}if("object"===typeof exports&&"undefined"!==typeof module)module.exports=m();else return m()})(function(){var h=!0,i=null,p=!1;function m(a,b){var c=e.history!==n;c&&(e.history=n);a.apply(n,b);c&&(e.history=k)}function w(){}function j(a,b,c){if(a!=i&&""!==a&&!b){var b=j(),d=g.getElementsByTagName("base")[0];
17 | !c&&d&&d.getAttribute("href")&&(d.href=d.href,b=j(d.href,i,h));c=b.d;d=b.h;a=""+a;a=/^(?:\w+\:)?\/\//.test(a)?0===a.indexOf("/")?d+a:a:d+"//"+b.g+(0===a.indexOf("/")?a:0===a.indexOf("?")?c+a:0===a.indexOf("#")?c+b.e+a:c.replace(/[^\/]+$/g,"")+a)}else if(a=b?a:f.href,!o||c)a=a.replace(/^[^#]*/,"")||"#",a=f.protocol.replace(/:.*$|$/,":")+"//"+f.host+l.basepath+a.replace(RegExp("^#[/]?(?:"+l.type+")?"),"");N.href=a;var a=/(?:(\w+\:))?(?:\/\/(?:[^@]*@)?([^\/:\?#]+)(?::([0-9]+))?)?([^\?#]*)(?:(\?[^#]+)|\?)?(?:(#.*))?/.exec(N.href),
18 | b=a[2]+(a[3]?":"+a[3]:""),c=a[4]||"/",d=a[5]||"",e="#"===a[6]?"":a[6]||"",k=c+d+e,m=c.replace(RegExp("^"+l.basepath,"i"),l.type)+d;return{b:a[1]+"//"+b+k,h:a[1],g:b,i:a[2],k:a[3]||"",d:c,e:d,a:e,c:k,j:m,f:m+e}}function Z(){var a;try{a=e.sessionStorage,a.setItem(A+"t","1"),a.removeItem(A+"t")}catch(b){a={getItem:function(a){a=g.cookie.split(a+"=");return 1<a.length&&a.pop().split(";").shift()||"null"},setItem:function(a){var b={};if(b[f.href]=k.state)g.cookie=a+"="+B.stringify(b)}}}try{q=B.parse(a.getItem(A))||
19 | {}}catch(c){q={}}s(t+"unload",function(){a.setItem(A,B.stringify(q))},p)}function C(a,b,c,d){var f=0;c||(c={set:w},f=1);var g=!c.set,j=!c.get,k={configurable:h,set:function(){g=1},get:function(){j=1}};try{x(a,b,k),a[b]=a[b],x(a,b,c)}catch(l){}if(!g||!j)if(a.__defineGetter__&&(a.__defineGetter__(b,k.get),a.__defineSetter__(b,k.set),a[b]=a[b],c.get&&a.__defineGetter__(b,c.get),c.set&&a.__defineSetter__(b,c.set)),!g||!j){if(f)return p;if(a===e){try{var m=a[b];a[b]=i}catch(o){}if("execScript"in e)e.execScript("Public "+
20 | b,"VBScript"),e.execScript("var "+b+";","JavaScript");else try{x(a,b,{value:w})}catch(r){"onpopstate"===b&&(s("popstate",c=function(){H("popstate",c,p);var b=a.onpopstate;a.onpopstate=i;setTimeout(function(){a.onpopstate=b},1)},p),O=0)}a[b]=m}else try{try{var n=I.create(a);x(I.getPrototypeOf(n)===a?n:a,b,c);for(var q in a)"function"===typeof a[q]&&(n[q]=a[q].bind(a));try{d.call(n,n,a)}catch(t){}a=n}catch(u){x(a.constructor.prototype,b,c)}}catch(v){return p}}return a}function $(a,b,c){c=c||{};a=a===
21 | P?f:a;c.set=c.set||function(c){a[b]=c};c.get=c.get||function(){return a[b]};return c}function D(a,b){var c=(""+("string"===typeof a?a:a.type)).replace(/^on/,""),d=u[c];if(d){b="string"===typeof a?b:a;if(b.target==i)for(var f=["target","currentTarget","srcElement","type"];a=f.pop();)b=C(b,a,{get:"type"===a?function(){return c}:function(){return e}});O&&(("popstate"===c?e.onpopstate:e.onhashchange)||w).call(e,b);for(var f=0,g=d.length;f<g;f++)d[f].call(e,b);return h}return aa(a,b)}function Q(){var a=
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/static/js/eventsource.min.js:
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1 | /** @license
2 |  * eventsource.js
3 |  * Available under MIT License (MIT)
4 |  * https://github.com/Yaffle/EventSource/
5 |  */
6 | !function(a){"use strict";function b(a,b,d,e,f){this._internal=new c(a,b,d,e,f)}function c(a,b,c,d,e){this.onStartCallback=b,this.onProgressCallback=c,this.onFinishCallback=d,this.thisArg=e,this.xhr=a,this.state=0,this.charOffset=0,this.offset=0,this.url="",this.withCredentials=!1,this.timeout=0}function d(){this._data={}}function e(){this._listeners=new d}function f(a){l(function(){throw a},0)}function g(a){this.type=a,this.target=void 0}function h(a,b){g.call(this,a),this.data=b.data,this.lastEventId=b.lastEventId}function i(a,b){e.call(this),this.onopen=void 0,this.onmessage=void 0,this.onerror=void 0,this.url="",this.readyState=t,this.withCredentials=!1,this._internal=new j(this,a,b)}function j(a,c,d){this.url=c.toString(),this.readyState=t,this.withCredentials=q&&void 0!=d&&Boolean(d.withCredentials),this.es=a,this.initialRetry=E(1e3,0),this.heartbeatTimeout=E(45e3,0),this.lastEventId="",this.retry=this.initialRetry,this.wasActivity=!1;var e=void 0!=d&&void 0!=d.Transport?d.Transport:r,f=new e;this.transport=new b(f,this.onStart,this.onProgress,this.onFinish,this),this.timeout=0,this.currentState=s,this.dataBuffer=[],this.lastEventIdBuffer="",this.eventTypeBuffer="",this.state=x,this.fieldStart=0,this.valueStart=0,this.es.url=this.url,this.es.readyState=this.readyState,this.es.withCredentials=this.withCredentials,this.onTimeout()}function k(){this.CONNECTING=t,this.OPEN=u,this.CLOSED=v}var l=a.setTimeout,m=a.clearTimeout,n=function(){};b.prototype.open=function(a,b){this._internal.open(a,b)},b.prototype.cancel=function(){this._internal.cancel()},c.prototype.onStart=function(){if(1===this.state){this.state=2;var a=0,b="",c=void 0;if("contentType"in this.xhr)a=200,b="OK",c=this.xhr.contentType;else try{a=this.xhr.status,b=this.xhr.statusText,c=this.xhr.getResponseHeader("Content-Type")}catch(d){a=0,b="",c=void 0}void 0==c&&(c=""),this.onStartCallback.call(this.thisArg,a,b,c)}},c.prototype.onProgress=function(){if(this.onStart(),2===this.state||3===this.state){this.state=3;var a="";try{a=this.xhr.responseText}catch(b){}for(var c=this.charOffset,d=a.length,e=this.offset;d>e;e+=1){var f=a.charCodeAt(e);(f==="\n".charCodeAt(0)||f==="\r".charCodeAt(0))&&(this.charOffset=e+1)}this.offset=d;var g=a.slice(c,this.charOffset);this.onProgressCallback.call(this.thisArg,g)}},c.prototype.onFinish=function(){this.onProgress(),3===this.state&&(this.state=4,0!==this.timeout&&(m(this.timeout),this.timeout=0),this.onFinishCallback.call(this.thisArg))},c.prototype.onReadyStateChange=function(){void 0!=this.xhr&&(4===this.xhr.readyState?0===this.xhr.status?this.onFinish():this.onFinish():3===this.xhr.readyState?this.onProgress():2===this.xhr.readyState)},c.prototype.onTimeout2=function(){this.timeout=0;var b=/^data\:([^,]*?)(base64)?,([\S]*)$/.exec(this.url),c=b[1],d="base64"===b[2]?a.atob(b[3]):decodeURIComponent(b[3]);1===this.state&&(this.state=2,this.onStartCallback.call(this.thisArg,200,"OK",c)),(2===this.state||3===this.state)&&(this.state=3,this.onProgressCallback.call(this.thisArg,d)),3===this.state&&(this.state=4,this.onFinishCallback.call(this.thisArg))},c.prototype.onTimeout1=function(){this.timeout=0,this.open(this.url,this.withCredentials)},c.prototype.onTimeout0=function(){var a=this;this.timeout=l(function(){a.onTimeout0()},500),3===this.xhr.readyState&&this.onProgress()},c.prototype.handleEvent=function(a){"load"===a.type?this.onFinish():"error"===a.type?this.onFinish():"abort"===a.type?this.onFinish():"progress"===a.type?this.onProgress():"readystatechange"===a.type&&this.onReadyStateChange()},c.prototype.open=function(b,c){0!==this.timeout&&(m(this.timeout),this.timeout=0),this.url=b,this.withCredentials=c,this.state=1,this.charOffset=0,this.offset=0;var d=this,e=/^data\:([^,]*?)(?:;base64)?,[\S]*$/.exec(b);if(void 0!=e)return void(this.timeout=l(function(){d.onTimeout2()},0));if((!("ontimeout"in this.xhr)||"sendAsBinary"in this.xhr||"mozAnon"in this.xhr)&&void 0!=a.document&&void 0!=a.document.readyState&&"complete"!==a.document.readyState)return void(this.timeout=l(function(){d.onTimeout1()},4));this.xhr.onload=function(a){d.handleEvent({type:"load"})},this.xhr.onerror=function(){d.handleEvent({type:"error"})},this.xhr.onabort=function(){d.handleEvent({type:"abort"})},this.xhr.onprogress=function(){d.handleEvent({type:"progress"})},this.xhr.onreadystatechange=function(){d.handleEvent({type:"readystatechange"})},this.xhr.open("GET",b,!0),this.xhr.withCredentials=c,this.xhr.responseType="text","setRequestHeader"in this.xhr&&this.xhr.setRequestHeader("Accept","text/event-stream");try{this.xhr.send(void 0)}catch(f){throw f}"readyState"in this.xhr&&void 0!=a.opera&&(this.timeout=l(function(){d.onTimeout0()},0))},c.prototype.cancel=function(){0!==this.state&&4!==this.state&&(this.state=4,this.xhr.onload=n,this.xhr.onerror=n,this.xhr.onabort=n,this.xhr.onprogress=n,this.xhr.onreadystatechange=n,this.xhr.abort(),0!==this.timeout&&(m(this.timeout),this.timeout=0),this.onFinishCallback.call(this.thisArg)),this.state=0},d.prototype.get=function(a){return this._data[a+"~"]},d.prototype.set=function(a,b){this._data[a+"~"]=b},d.prototype["delete"]=function(a){delete this._data[a+"~"]},e.prototype.dispatchEvent=function(a){a.target=this;var b=a.type.toString(),c=this._listeners,d=c.get(b);if(void 0!=d)for(var e=d.length,g=void 0,h=0;e>h;h+=1){g=d[h];try{"function"==typeof g.handleEvent?g.handleEvent(a):g.call(this,a)}catch(i){f(i)}}},e.prototype.addEventListener=function(a,b){a=a.toString();var c=this._listeners,d=c.get(a);void 0==d&&(d=[],c.set(a,d));for(var e=d.length;e>=0;e-=1)if(d[e]===b)return;d.push(b)},e.prototype.removeEventListener=function(a,b){a=a.toString();var c=this._listeners,d=c.get(a);if(void 0!=d){for(var e=d.length,f=[],g=0;e>g;g+=1)d[g]!==b&&f.push(d[g]);0===f.length?c["delete"](a):c.set(a,f)}},h.prototype=g.prototype;var o=a.XMLHttpRequest,p=a.XDomainRequest,q=void 0!=o&&void 0!=(new o).withCredentials,r=q||void 0!=o&&void 0==p?o:p,s=-1,t=0,u=1,v=2,w=3,x=4,y=5,z=6,A=7,B=/^text\/event\-stream;?(\s*charset\=utf\-8)?$/i,C=1e3,D=18e6,E=function(a,b){var c=a;return c!==c&&(c=b),C>c?C:c>D?D:c},F=function(a,b,c){try{"function"==typeof b&&b.call(a,c)}catch(d){f(d)}};j.prototype.onStart=function(a,b,c){if(this.currentState===t)if(void 0==c&&(c=""),200===a&&B.test(c)){this.currentState=u,this.wasActivity=!0,this.retry=this.initialRetry,this.readyState=u,this.es.readyState=u;var d=new g("open");this.es.dispatchEvent(d),F(this.es,this.es.onopen,d)}else if(0!==a){var e="";e=200!==a?"EventSource's response has a status "+a+" "+b.replace(/\s+/g," ")+" that is not 200. Aborting the connection.":"EventSource's response has a Content-Type specifying an unsupported type: "+c.replace(/\s+/g," ")+". Aborting the connection.",f(new Error(e)),this.close();var d=new g("error");this.es.dispatchEvent(d),F(this.es,this.es.onerror,d)}},j.prototype.onProgress=function(a){if(this.currentState===u){var b=a.length;0!==b&&(this.wasActivity=!0);for(var c=0;b>c;c+=1){var d=a.charCodeAt(c);if(this.state===w&&d==="\n".charCodeAt(0))this.state=x;else if(this.state===w&&(this.state=x),d==="\r".charCodeAt(0)||d==="\n".charCodeAt(0)){if(this.state!==x){this.state===y&&(this.valueStart=c+1);var e=a.slice(this.fieldStart,this.valueStart-1),f=a.slice(this.valueStart+(this.valueStart<c&&a.charCodeAt(this.valueStart)===" ".charCodeAt(0)?1:0),c);if("data"===e)this.dataBuffer.push(f);else if("id"===e)this.lastEventIdBuffer=f;else if("event"===e)this.eventTypeBuffer=f;else if("retry"===e)this.initialRetry=E(Number(f),this.initialRetry),this.retry=this.initialRetry;else if("heartbeatTimeout"===e&&(this.heartbeatTimeout=E(Number(f),this.heartbeatTimeout),0!==this.timeout)){m(this.timeout);var g=this;this.timeout=l(function(){g.onTimeout()},this.heartbeatTimeout)}}if(this.state===x){if(0!==this.dataBuffer.length){this.lastEventId=this.lastEventIdBuffer,""===this.eventTypeBuffer&&(this.eventTypeBuffer="message");var i=new h(this.eventTypeBuffer,{data:this.dataBuffer.join("\n"),lastEventId:this.lastEventIdBuffer});if(this.es.dispatchEvent(i),"message"===this.eventTypeBuffer&&F(this.es,this.es.onmessage,i),this.currentState===v)return}this.dataBuffer.length=0,this.eventTypeBuffer=""}this.state=d==="\r".charCodeAt(0)?w:x}else this.state===x&&(this.fieldStart=c,this.state=y),this.state===y?d===":".charCodeAt(0)&&(this.valueStart=c+1,this.state=z):this.state===z&&(this.state=A)}}},j.prototype.onFinish=function(){if(this.currentState===u||this.currentState===t){this.currentState=s,0!==this.timeout&&(m(this.timeout),this.timeout=0),this.retry>16*this.initialRetry&&(this.retry=16*this.initialRetry),this.retry>D&&(this.retry=D);var a=this;this.timeout=l(function(){a.onTimeout()},this.retry),this.retry=2*this.retry+1,this.readyState=t,this.es.readyState=t;var b=new g("error");this.es.dispatchEvent(b),F(this.es,this.es.onerror,b)}},j.prototype.onTimeout=function(){if(this.timeout=0,this.currentState===s){this.wasActivity=!1;var a=this;this.timeout=l(function(){a.onTimeout()},this.heartbeatTimeout),this.currentState=t,this.dataBuffer.length=0,this.eventTypeBuffer="",this.lastEventIdBuffer=this.lastEventId,this.fieldStart=0,this.valueStart=0,this.state=x;var b=this.url.slice(0,5);b="data:"!==b&&"blob:"!==b?this.url+((-1===this.url.indexOf("?",0)?"?":"&")+"lastEventId="+encodeURIComponent(this.lastEventId)+"&r="+(Math.random()+1).toString().slice(2)):this.url;try{this.transport.open(b,this.withCredentials)}catch(c){throw this.close(),c}}else if(this.wasActivity){this.wasActivity=!1;var a=this;this.timeout=l(function(){a.onTimeout()},this.heartbeatTimeout)}else f(new Error("No activity within "+this.heartbeatTimeout+" milliseconds. Reconnecting.")),this.transport.cancel()},j.prototype.close=function(){this.currentState=v,this.transport.cancel(),0!==this.timeout&&(m(this.timeout),this.timeout=0),this.readyState=v,this.es.readyState=v},k.prototype=e.prototype,i.prototype=new k,i.prototype.close=function(){this._internal.close()},k.call(i),q&&(i.prototype.withCredentials=void 0);var G=function(){return void 0!=a.EventSource&&"withCredentials"in a.EventSource.prototype};void 0!=r&&(void 0==a.EventSource||q&&!G())&&(a.NativeEventSource=a.EventSource,a.EventSource=i)}("undefined"!=typeof window?window:this);
7 | 


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e.year()<0||e.year()>9999?R(e,"YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]"):k(Date.prototype.toISOString)?this.toDate().toISOString():R(e,"YYYY-MM-DD[T]HH:mm:ss.SSS[Z]")},Sn.inspect=function(){if(!this.isValid())return"moment.invalid(/* "+this._i+" */)";var e="moment",t="";this.isLocal()||(e=0===this.utcOffset()?"moment.utc":"moment.parseZone",t="Z");var n="["+e+'("]',s=0<=this.year()&&this.year()<=9999?"YYYY":"YYYYYY",i=t+'[")]';return this.format(n+s+"-MM-DD[T]HH:mm:ss.SSS"+i)},Sn.toJSON=function(){return this.isValid()?this.toISOString():null},Sn.toString=function(){return this.clone().locale("en").format("ddd MMM DD YYYY HH:mm:ss [GMT]ZZ")},Sn.unix=function(){return Math.floor(this.valueOf()/1e3)},Sn.valueOf=function(){return this._d.valueOf()-6e4*(this._offset||0)},Sn.creationData=function(){return{input:this._i,format:this._f,locale:this._locale,isUTC:this._isUTC,strict:this._strict}},Sn.year=Ht,Sn.isLeapYear=function(){return j(this.year())},Sn.weekYear=function(e){return 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See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information",function(){if(!s(this._isDSTShifted))return this._isDSTShifted;var e={};if(f(e,this),(e=ye(e))._a){var t=e._isUTC?l(e._a):pe(e._a);this._isDSTShifted=this.isValid()&&p(e._a,t.toArray())>0}else this._isDSTShifted=!1;return this._isDSTShifted});var Dn=D.prototype;Dn.calendar=function(e,t,n){var s=this._calendar[e]||this._calendar.sameElse;return k(s)?s.call(t,n):s},Dn.longDateFormat=function(e){var t=this._longDateFormat[e],n=this._longDateFormat[e.toUpperCase()];return t||!n?t:(this._longDateFormat[e]=n.replace(/MMMM|MM|DD|dddd/g,function(e){return e.slice(1)}),this._longDateFormat[e])},Dn.invalidDate=function(){return this._invalidDate},Dn.ordinal=function(e){return this._ordinal.replace("%d",e)},Dn.preparse=Ge,Dn.postformat=Ge,Dn.relativeTime=function(e,t,n,s){var i=this._relativeTime[n];return k(i)?i(e,t,n,s):i.replace(/%d/i,e)},Dn.pastFuture=function(e,t){var n=this._relativeTime[e>0?"future":"past"];return 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X(e,this._week.dow,this._week.doy).week},Dn.firstDayOfYear=function(){return this._week.doy},Dn.firstDayOfWeek=function(){return this._week.dow},Dn.weekdays=function(e,n){return e?t(this._weekdays)?this._weekdays[e.day()]:this._weekdays[this._weekdays.isFormat.test(n)?"format":"standalone"][e.day()]:t(this._weekdays)?this._weekdays:this._weekdays.standalone},Dn.weekdaysMin=function(e){return e?this._weekdaysMin[e.day()]:this._weekdaysMin},Dn.weekdaysShort=function(e){return e?this._weekdaysShort[e.day()]:this._weekdaysShort},Dn.weekdaysParse=function(e,t,n){var s,i,r;if(this._weekdaysParseExact)return function(e,t,n){var s,i,r,a=e.toLocaleLowerCase();if(!this._weekdaysParse)for(this._weekdaysParse=[],this._shortWeekdaysParse=[],this._minWeekdaysParse=[],s=0;s<7;++s)r=l([2e3,1]).day(s),this._minWeekdaysParse[s]=this.weekdaysMin(r,"").toLocaleLowerCase(),this._shortWeekdaysParse[s]=this.weekdaysShort(r,"").toLocaleLowerCase(),this._weekdaysParse[s]=this.weekdays(r,"").toLocaleLowerCase();return n?"dddd"===t?-1!==(i=Nt.call(this._weekdaysParse,a))?i:null:"ddd"===t?-1!==(i=Nt.call(this._shortWeekdaysParse,a))?i:null:-1!==(i=Nt.call(this._minWeekdaysParse,a))?i:null:"dddd"===t?-1!==(i=Nt.call(this._weekdaysParse,a))?i:-1!==(i=Nt.call(this._shortWeekdaysParse,a))?i:-1!==(i=Nt.call(this._minWeekdaysParse,a))?i:null:"ddd"===t?-1!==(i=Nt.call(this._shortWeekdaysParse,a))?i:-1!==(i=Nt.call(this._weekdaysParse,a))?i:-1!==(i=Nt.call(this._minWeekdaysParse,a))?i:null:-1!==(i=Nt.call(this._minWeekdaysParse,a))?i:-1!==(i=Nt.call(this._weekdaysParse,a))?i:-1!==(i=Nt.call(this._shortWeekdaysParse,a))?i:null}.call(this,e,t,n);for(this._weekdaysParse||(this._weekdaysParse=[],this._minWeekdaysParse=[],this._shortWeekdaysParse=[],this._fullWeekdaysParse=[]),s=0;s<7;s++){if(i=l([2e3,1]).day(s),n&&!this._fullWeekdaysParse[s]&&(this._fullWeekdaysParse[s]=new RegExp("^"+this.weekdays(i,"").replace(".",".?")+"$","i"),this._shortWeekdaysParse[s]=new RegExp("^"+this.weekdaysShort(i,"").replace(".",".?")+"$","i"),this._minWeekdaysParse[s]=new RegExp("^"+this.weekdaysMin(i,"").replace(".",".?")+"$","i")),this._weekdaysParse[s]||(r="^"+this.weekdays(i,"")+"|^"+this.weekdaysShort(i,"")+"|^"+this.weekdaysMin(i,""),this._weekdaysParse[s]=new RegExp(r.replace(".",""),"i")),n&&"dddd"===t&&this._fullWeekdaysParse[s].test(e))return s;if(n&&"ddd"===t&&this._shortWeekdaysParse[s].test(e))return s;if(n&&"dd"===t&&this._minWeekdaysParse[s].test(e))return s;if(!n&&this._weekdaysParse[s].test(e))return s}},Dn.weekdaysRegex=function(e){return this._weekdaysParseExact?(o(this,"_weekdaysRegex")||ee.call(this),e?this._weekdaysStrictRegex:this._weekdaysRegex):(o(this,"_weekdaysRegex")||(this._weekdaysRegex=Zt),this._weekdaysStrictRegex&&e?this._weekdaysStrictRegex:this._weekdaysRegex)},Dn.weekdaysShortRegex=function(e){return this._weekdaysParseExact?(o(this,"_weekdaysRegex")||ee.call(this),e?this._weekdaysShortStrictRegex:this._weekdaysShortRegex):(o(this,"_weekdaysShortRegex")||(this._weekdaysShortRegex=$t),this._weekdaysShortStrictRegex&&e?this._weekdaysShortStrictRegex:this._weekdaysShortRegex)},Dn.weekdaysMinRegex=function(e){return this._weekdaysParseExact?(o(this,"_weekdaysRegex")||ee.call(this),e?this._weekdaysMinStrictRegex:this._weekdaysMinRegex):(o(this,"_weekdaysMinRegex")||(this._weekdaysMinRegex=qt),this._weekdaysMinStrictRegex&&e?this._weekdaysMinStrictRegex:this._weekdaysMinRegex)},Dn.isPM=function(e){return"p"===(e+"").toLowerCase().charAt(0)},Dn.meridiem=function(e,t,n){return e>11?n?"pm":"PM":n?"am":"AM"},ae("en",{dayOfMonthOrdinalParse:/\d{1,2}(th|st|nd|rd)/,ordinal:function(e){var t=e%10;return e+(1===g(e%100/10)?"th":1===t?"st":2===t?"nd":3===t?"rd":"th")}}),e.lang=v("moment.lang is deprecated. Use moment.locale instead.",ae),e.langData=v("moment.langData is deprecated. Use moment.localeData instead.",ue);var Yn=Math.abs,On=$e("ms"),xn=$e("s"),Tn=$e("m"),bn=$e("h"),Pn=$e("d"),Wn=$e("w"),Rn=$e("M"),Cn=$e("y"),Fn=qe("milliseconds"),Un=qe("seconds"),Nn=qe("minutes"),Hn=qe("hours"),Ln=qe("days"),Gn=qe("months"),Vn=qe("years"),jn=Math.round,In={ss:44,s:45,m:45,h:22,d:26,M:11},En=Math.abs,An=ve.prototype;return An.isValid=function(){return this._isValid},An.abs=function(){var e=this._data;return this._milliseconds=Yn(this._milliseconds),this._days=Yn(this._days),this._months=Yn(this._months),e.milliseconds=Yn(e.milliseconds),e.seconds=Yn(e.seconds),e.minutes=Yn(e.minutes),e.hours=Yn(e.hours),e.months=Yn(e.months),e.years=Yn(e.years),this},An.add=function(e,t){return Ee(this,e,t,1)},An.subtract=function(e,t){return Ee(this,e,t,-1)},An.as=function(e){if(!this.isValid())return NaN;var t,n,s=this._milliseconds;if("month"===(e=O(e))||"year"===e)return t=this._days+s/864e5,n=this._months+ze(t),"month"===e?n:n/12;switch(t=this._days+Math.round(Ze(this._months)),e){case"week":return t/7+s/6048e5;case"day":return t+s/864e5;case"hour":return 24*t+s/36e5;case"minute":return 1440*t+s/6e4;case"second":return 86400*t+s/1e3;case"millisecond":return Math.floor(864e5*t)+s;default:throw new Error("Unknown unit "+e)}},An.asMilliseconds=On,An.asSeconds=xn,An.asMinutes=Tn,An.asHours=bn,An.asDays=Pn,An.asWeeks=Wn,An.asMonths=Rn,An.asYears=Cn,An.valueOf=function(){return this.isValid()?this._milliseconds+864e5*this._days+this._months%12*2592e6+31536e6*g(this._months/12):NaN},An._bubble=function(){var e,t,n,s,i,r=this._milliseconds,a=this._days,o=this._months,u=this._data;return r>=0&&a>=0&&o>=0||r<=0&&a<=0&&o<=0||(r+=864e5*Ae(Ze(o)+a),a=0,o=0),u.milliseconds=r%1e3,e=y(r/1e3),u.seconds=e%60,t=y(e/60),u.minutes=t%60,n=y(t/60),u.hours=n%24,a+=y(n/24),i=y(ze(a)),o+=i,a-=Ae(Ze(i)),s=y(o/12),o%=12,u.days=a,u.months=o,u.years=s,this},An.clone=function(){return Te(this)},An.get=function(e){return e=O(e),this.isValid()?this[e+"s"]():NaN},An.milliseconds=Fn,An.seconds=Un,An.minutes=Nn,An.hours=Hn,An.days=Ln,An.weeks=function(){return y(this.days()/7)},An.months=Gn,An.years=Vn,An.humanize=function(e){if(!this.isValid())return this.localeData().invalidDate();var t=this.localeData(),n=function(e,t,n){var s=Te(e).abs(),i=jn(s.as("s")),r=jn(s.as("m")),a=jn(s.as("h")),o=jn(s.as("d")),u=jn(s.as("M")),l=jn(s.as("y")),d=i<=In.ss&&["s",i]||i<In.s&&["ss",i]||r<=1&&["m"]||r<In.m&&["mm",r]||a<=1&&["h"]||a<In.h&&["hh",a]||o<=1&&["d"]||o<In.d&&["dd",o]||u<=1&&["M"]||u<In.M&&["MM",u]||l<=1&&["y"]||["yy",l];return d[2]=t,d[3]=+e>0,d[4]=n,function(e,t,n,s,i){return i.relativeTime(t||1,!!n,e,s)}.apply(null,d)}(this,!e,t);return e&&(n=t.pastFuture(+this,n)),t.postformat(n)},An.toISOString=Be,An.toString=Be,An.toJSON=Be,An.locale=Fe,An.localeData=Ue,An.toIsoString=v("toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)",Be),An.lang=gn,P("X",0,0,"unix"),P("x",0,0,"valueOf"),F("x",Mt),F("X",/[+-]?\d+(\.\d{1,3})?/),H("X",function(e,t,n){n._d=new Date(1e3*parseFloat(e,10))}),H("x",function(e,t,n){n._d=new Date(g(e))}),e.version="2.19.3",function(e){Qe=e}(pe),e.fn=Sn,e.min=function(){return we("isBefore",[].slice.call(arguments,0))},e.max=function(){return we("isAfter",[].slice.call(arguments,0))},e.now=function(){return Date.now?Date.now():+new Date},e.utc=l,e.unix=function(e){return pe(1e3*e)},e.months=function(e,t){return je(e,t,"months")},e.isDate=r,e.locale=ae,e.invalid=c,e.duration=Te,e.isMoment=_,e.weekdays=function(e,t,n){return Ie(e,t,n,"weekdays")},e.parseZone=function(){return pe.apply(null,arguments).parseZone()},e.localeData=ue,e.isDuration=Me,e.monthsShort=function(e,t){return je(e,t,"monthsShort")},e.weekdaysMin=function(e,t,n){return Ie(e,t,n,"weekdaysMin")},e.defineLocale=oe,e.updateLocale=function(e,t){if(null!=t){var n,s,i=Qt;null!=(s=re(e))&&(i=s._config),(n=new D(t=S(i,t))).parentLocale=Xt[e],Xt[e]=n,ae(e)}else null!=Xt[e]&&(null!=Xt[e].parentLocale?Xt[e]=Xt[e].parentLocale:null!=Xt[e]&&delete Xt[e]);return Xt[e]},e.locales=function(){return nt(Xt)},e.weekdaysShort=function(e,t,n){return Ie(e,t,n,"weekdaysShort")},e.normalizeUnits=O,e.relativeTimeRounding=function(e){return void 0===e?jn:"function"==typeof e&&(jn=e,!0)},e.relativeTimeThreshold=function(e,t){return void 0!==In[e]&&(void 0===t?In[e]:(In[e]=t,"s"===e&&(In.ss=t-1),!0))},e.calendarFormat=function(e,t){var n=e.diff(t,"days",!0);return n<-6?"sameElse":n<-1?"lastWeek":n<0?"lastDay":n<1?"sameDay":n<2?"nextDay":n<7?"nextWeek":"sameElse"},e.prototype=Sn,e});


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