mirror of https://gitlab.com/bashrc2/epicyon
363 lines
12 KiB
Python
363 lines
12 KiB
Python
__filename__ = "newswire.py"
|
|
__author__ = "Bob Mottram"
|
|
__license__ = "AGPL3+"
|
|
__version__ = "1.1.0"
|
|
__maintainer__ = "Bob Mottram"
|
|
__email__ = "bob@freedombone.net"
|
|
__status__ = "Production"
|
|
|
|
import os
|
|
import time
|
|
import requests
|
|
from socket import error as SocketError
|
|
import errno
|
|
from datetime import datetime
|
|
from collections import OrderedDict
|
|
from utils import locatePost
|
|
from utils import loadJson
|
|
from utils import saveJson
|
|
from utils import isSuspended
|
|
|
|
|
|
def rss2Header(httpPrefix: str,
|
|
nickname: str, domainFull: str,
|
|
title: str, translate: {}) -> str:
|
|
"""Header for an RSS 2.0 feed
|
|
"""
|
|
rssStr = "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>"
|
|
rssStr += "<rss version=\"2.0\">"
|
|
rssStr += '<channel>'
|
|
if title.startswith('News'):
|
|
rssStr += ' <title>Newswire</title>'
|
|
else:
|
|
rssStr += ' <title>' + translate[title] + '</title>'
|
|
if title.startswith('News'):
|
|
rssStr += ' <link>' + httpPrefix + '://' + domainFull + \
|
|
'/newswire.xml' + '</link>'
|
|
else:
|
|
rssStr += ' <link>' + httpPrefix + '://' + domainFull + \
|
|
'/users/' + nickname + '/rss.xml' + '</link>'
|
|
return rssStr
|
|
|
|
|
|
def rss2Footer() -> str:
|
|
"""Footer for an RSS 2.0 feed
|
|
"""
|
|
rssStr = '</channel>'
|
|
rssStr += '</rss>'
|
|
return rssStr
|
|
|
|
|
|
def xml2StrToDict(xmlStr: str) -> {}:
|
|
"""Converts an xml 2.0 string to a dictionary
|
|
"""
|
|
if '<item>' not in xmlStr:
|
|
return {}
|
|
result = {}
|
|
rssItems = xmlStr.split('<item>')
|
|
for rssItem in rssItems:
|
|
if '<title>' not in rssItem:
|
|
continue
|
|
if '</title>' not in rssItem:
|
|
continue
|
|
if '<link>' not in rssItem:
|
|
continue
|
|
if '</link>' not in rssItem:
|
|
continue
|
|
if '<pubDate>' not in rssItem:
|
|
continue
|
|
if '</pubDate>' not in rssItem:
|
|
continue
|
|
title = rssItem.split('<title>')[1]
|
|
title = title.split('</title>')[0]
|
|
link = rssItem.split('<link>')[1]
|
|
link = link.split('</link>')[0]
|
|
pubDate = rssItem.split('<pubDate>')[1]
|
|
pubDate = pubDate.split('</pubDate>')[0]
|
|
parsed = False
|
|
try:
|
|
publishedDate = \
|
|
datetime.strptime(pubDate, "%a, %d %b %Y %H:%M:%S %z")
|
|
result[str(publishedDate)] = [title, link, [], '']
|
|
parsed = True
|
|
except BaseException:
|
|
pass
|
|
if not parsed:
|
|
try:
|
|
publishedDate = \
|
|
datetime.strptime(pubDate, "%a, %d %b %Y %H:%M:%S UT")
|
|
result[str(publishedDate) + '+00:00'] = [title, link]
|
|
parsed = True
|
|
except BaseException:
|
|
print('WARN: unrecognized RSS date format: ' + pubDate)
|
|
pass
|
|
return result
|
|
|
|
|
|
def xmlStrToDict(xmlStr: str) -> {}:
|
|
"""Converts an xml string to a dictionary
|
|
"""
|
|
if 'rss version="2.0"' in xmlStr:
|
|
return xml2StrToDict(xmlStr)
|
|
return {}
|
|
|
|
|
|
def getRSS(session, url: str) -> {}:
|
|
"""Returns an RSS url as a dict
|
|
"""
|
|
if not isinstance(url, str):
|
|
print('url: ' + str(url))
|
|
print('ERROR: getRSS url should be a string')
|
|
return None
|
|
headers = {
|
|
'Accept': 'text/xml; charset=UTF-8'
|
|
}
|
|
params = None
|
|
sessionParams = {}
|
|
sessionHeaders = {}
|
|
if headers:
|
|
sessionHeaders = headers
|
|
if params:
|
|
sessionParams = params
|
|
sessionHeaders['User-Agent'] = \
|
|
'Mozilla/5.0 (X11; Linux x86_64; rv:81.0) Gecko/20100101 Firefox/81.0'
|
|
if not session:
|
|
print('WARN: no session specified for getRSS')
|
|
try:
|
|
result = session.get(url, headers=sessionHeaders, params=sessionParams)
|
|
return xmlStrToDict(result.text)
|
|
except requests.exceptions.RequestException as e:
|
|
print('ERROR: getRSS failed\nurl: ' + str(url) + '\n' +
|
|
'headers: ' + str(sessionHeaders) + '\n' +
|
|
'params: ' + str(sessionParams) + '\n')
|
|
print(e)
|
|
except ValueError as e:
|
|
print('ERROR: getRSS failed\nurl: ' + str(url) + '\n' +
|
|
'headers: ' + str(sessionHeaders) + '\n' +
|
|
'params: ' + str(sessionParams) + '\n')
|
|
print(e)
|
|
except SocketError as e:
|
|
if e.errno == errno.ECONNRESET:
|
|
print('WARN: connection was reset during getRSS')
|
|
print(e)
|
|
return None
|
|
|
|
|
|
def getRSSfromDict(baseDir: str, newswire: {},
|
|
httpPrefix: str, domainFull: str,
|
|
title: str, translate: {}) -> str:
|
|
"""Returns an rss feed from the current newswire dict.
|
|
This allows other instances to subscribe to the same newswire
|
|
"""
|
|
rssStr = rss2Header(httpPrefix,
|
|
None, domainFull,
|
|
'Newswire', translate)
|
|
for published, fields in newswire.items():
|
|
published = published.replace('+00:00', 'Z').strip()
|
|
published = published.replace(' ', 'T')
|
|
try:
|
|
pubDate = datetime.strptime(published, "%Y-%m-%dT%H:%M:%SZ")
|
|
except BaseException:
|
|
continue
|
|
rssStr += '<item>\n'
|
|
rssStr += ' <title>' + fields[0] + '</title>\n'
|
|
rssStr += ' <link>' + fields[1] + '</link>\n'
|
|
|
|
rssDateStr = pubDate.strftime("%a, %d %b %Y %H:%M:%S UT")
|
|
rssStr += ' <pubDate>' + rssDateStr + '</pubDate>\n'
|
|
rssStr += '</item>\n'
|
|
rssStr += rss2Footer()
|
|
return rssStr
|
|
|
|
|
|
def isaBlogPost(postJsonObject: {}) -> bool:
|
|
"""Is the given object a blog post?
|
|
"""
|
|
if not postJsonObject:
|
|
return False
|
|
if not postJsonObject.get('object'):
|
|
return False
|
|
if not isinstance(postJsonObject['object'], dict):
|
|
return False
|
|
if postJsonObject['object'].get('summary') and \
|
|
postJsonObject['object'].get('url') and \
|
|
postJsonObject['object'].get('published'):
|
|
return True
|
|
return False
|
|
|
|
|
|
def addAccountBlogsToNewswire(baseDir: str, nickname: str, domain: str,
|
|
newswire: {},
|
|
maxBlogsPerAccount: int,
|
|
indexFilename: str) -> None:
|
|
"""Adds blogs for the given account to the newswire
|
|
"""
|
|
if not os.path.isfile(indexFilename):
|
|
return
|
|
with open(indexFilename, 'r') as indexFile:
|
|
postFilename = 'start'
|
|
ctr = 0
|
|
while postFilename:
|
|
postFilename = indexFile.readline()
|
|
if postFilename:
|
|
# if this is a full path then remove the directories
|
|
if '/' in postFilename:
|
|
postFilename = postFilename.split('/')[-1]
|
|
|
|
# filename of the post without any extension or path
|
|
# This should also correspond to any index entry in
|
|
# the posts cache
|
|
postUrl = \
|
|
postFilename.replace('\n', '').replace('\r', '')
|
|
postUrl = postUrl.replace('.json', '').strip()
|
|
|
|
# read the post from file
|
|
fullPostFilename = \
|
|
locatePost(baseDir, nickname,
|
|
domain, postUrl, False)
|
|
if not fullPostFilename:
|
|
print('Unable to locate post ' + postUrl)
|
|
ctr += 1
|
|
if ctr >= maxBlogsPerAccount:
|
|
break
|
|
continue
|
|
|
|
postJsonObject = None
|
|
if fullPostFilename:
|
|
postJsonObject = loadJson(fullPostFilename)
|
|
if isaBlogPost(postJsonObject):
|
|
published = postJsonObject['object']['published']
|
|
published = published.replace('T', ' ')
|
|
published = published.replace('Z', '+00:00')
|
|
votes = []
|
|
if os.path.isfile(fullPostFilename + '.votes'):
|
|
votes = loadJson(fullPostFilename + '.votes')
|
|
newswire[published] = \
|
|
[postJsonObject['object']['summary'],
|
|
postJsonObject['object']['url'], votes,
|
|
fullPostFilename]
|
|
|
|
ctr += 1
|
|
if ctr >= maxBlogsPerAccount:
|
|
break
|
|
|
|
|
|
def addBlogsToNewswire(baseDir: str, newswire: {},
|
|
maxBlogsPerAccount: int) -> None:
|
|
"""Adds blogs from each user account into the newswire
|
|
"""
|
|
moderationDict = {}
|
|
|
|
# go through each account
|
|
for subdir, dirs, files in os.walk(baseDir + '/accounts'):
|
|
for handle in dirs:
|
|
if '@' not in handle:
|
|
continue
|
|
if 'inbox@' in handle:
|
|
continue
|
|
|
|
nickname = handle.split('@')[0]
|
|
|
|
# has this account been suspended?
|
|
if isSuspended(baseDir, nickname):
|
|
continue
|
|
|
|
if os.path.isfile(baseDir + '/accounts/' + handle +
|
|
'/.nonewswire'):
|
|
continue
|
|
|
|
# is there a blogs timeline for this account?
|
|
accountDir = os.path.join(baseDir + '/accounts', handle)
|
|
blogsIndex = accountDir + '/tlblogs.index'
|
|
if os.path.isfile(blogsIndex):
|
|
domain = handle.split('@')[1]
|
|
addAccountBlogsToNewswire(baseDir, nickname, domain,
|
|
newswire, maxBlogsPerAccount,
|
|
blogsIndex)
|
|
|
|
# sort the moderation dict into chronological order, latest first
|
|
sortedModerationDict = \
|
|
OrderedDict(sorted(moderationDict.items(), reverse=True))
|
|
# save the moderation queue details for later display
|
|
newswireModerationFilename = baseDir + '/accounts/newswiremoderation.txt'
|
|
if sortedModerationDict:
|
|
saveJson(sortedModerationDict, newswireModerationFilename)
|
|
else:
|
|
# remove the file if there is nothing to moderate
|
|
if os.path.isfile(newswireModerationFilename):
|
|
os.remove(newswireModerationFilename)
|
|
|
|
|
|
def getDictFromNewswire(session, baseDir: str) -> {}:
|
|
"""Gets rss feeds as a dictionary from newswire file
|
|
"""
|
|
subscriptionsFilename = baseDir + '/accounts/newswire.txt'
|
|
if not os.path.isfile(subscriptionsFilename):
|
|
return {}
|
|
|
|
# add rss feeds
|
|
rssFeed = []
|
|
with open(subscriptionsFilename, 'r') as fp:
|
|
rssFeed = fp.readlines()
|
|
result = {}
|
|
for url in rssFeed:
|
|
url = url.strip()
|
|
if '://' not in url:
|
|
continue
|
|
if url.startswith('#'):
|
|
continue
|
|
itemsList = getRSS(session, url)
|
|
for dateStr, item in itemsList.items():
|
|
result[dateStr] = item
|
|
|
|
# add blogs from each user account
|
|
addBlogsToNewswire(baseDir, result, 5)
|
|
|
|
# sort into chronological order, latest first
|
|
sortedResult = OrderedDict(sorted(result.items(), reverse=True))
|
|
return sortedResult
|
|
|
|
|
|
def runNewswireDaemon(baseDir: str, httpd, unused: str):
|
|
"""Periodically updates RSS feeds
|
|
"""
|
|
# initial sleep to allow the system to start up
|
|
time.sleep(50)
|
|
while True:
|
|
# has the session been created yet?
|
|
if not httpd.session:
|
|
print('Newswire daemon waiting for session')
|
|
time.sleep(60)
|
|
continue
|
|
|
|
# try to update the feeds
|
|
newNewswire = None
|
|
try:
|
|
newNewswire = getDictFromNewswire(httpd.session, baseDir)
|
|
except Exception as e:
|
|
print('WARN: unable to update newswire ' + str(e))
|
|
time.sleep(120)
|
|
continue
|
|
|
|
httpd.newswire = newNewswire
|
|
print('Newswire updated')
|
|
# wait a while before the next feeds update
|
|
time.sleep(1200)
|
|
|
|
|
|
def runNewswireWatchdog(projectVersion: str, httpd) -> None:
|
|
"""This tries to keep the newswire update thread running even if it dies
|
|
"""
|
|
print('Starting newswire watchdog')
|
|
newswireOriginal = \
|
|
httpd.thrPostSchedule.clone(runNewswireDaemon)
|
|
httpd.thrNewswireDaemon.start()
|
|
while True:
|
|
time.sleep(50)
|
|
if not httpd.thrNewswireDaemon.isAlive():
|
|
httpd.thrNewswireDaemon.kill()
|
|
httpd.thrNewswireDaemon = \
|
|
newswireOriginal.clone(runNewswireDaemon)
|
|
httpd.thrNewswireDaemon.start()
|
|
print('Restarting newswire daemon...')
|