mirror of https://gitlab.com/bashrc2/epicyon
1110 lines
40 KiB
Python
1110 lines
40 KiB
Python
__filename__ = "newswire.py"
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__author__ = "Bob Mottram"
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__license__ = "AGPL3+"
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__version__ = "1.2.0"
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__maintainer__ = "Bob Mottram"
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__email__ = "bob@freedombone.net"
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__status__ = "Production"
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__module_group__ = "Web Interface Columns"
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import os
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import json
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import requests
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from socket import error as SocketError
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import errno
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from datetime import datetime
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from datetime import timedelta
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from datetime import timezone
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from collections import OrderedDict
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from utils import validPostDate
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from categories import setHashtagCategory
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from utils import getBaseContentFromPost
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from utils import hasObjectDict
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from utils import firstParagraphFromString
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from utils import isPublicPost
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from utils import locatePost
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from utils import loadJson
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from utils import saveJson
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from utils import isSuspended
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from utils import containsInvalidChars
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from utils import removeHtml
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from utils import isAccountDir
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from utils import acctDir
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from utils import localActorUrl
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from blocking import isBlockedDomain
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from blocking import isBlockedHashtag
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from filters import isFiltered
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def _removeCDATA(text: str) -> str:
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"""Removes any CDATA from the given text
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"""
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if 'CDATA[' in text:
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text = text.split('CDATA[')[1]
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if ']' in text:
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text = text.split(']')[0]
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return text
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def rss2Header(httpPrefix: str,
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nickname: str, domainFull: str,
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title: str, translate: {}) -> str:
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"""Header for an RSS 2.0 feed
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"""
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rssStr = \
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"<?xml version=\"1.0\" encoding=\"UTF-8\" ?>" + \
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"<rss version=\"2.0\">" + \
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'<channel>'
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if title.startswith('News'):
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rssStr += \
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' <title>Newswire</title>' + \
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' <link>' + httpPrefix + '://' + domainFull + \
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'/newswire.xml' + '</link>'
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elif title.startswith('Site'):
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rssStr += \
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' <title>' + domainFull + '</title>' + \
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' <link>' + httpPrefix + '://' + domainFull + \
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'/blog/rss.xml' + '</link>'
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else:
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rssStr += \
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' <title>' + translate[title] + '</title>' + \
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' <link>' + \
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localActorUrl(httpPrefix, nickname, domainFull) + \
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'/rss.xml' + '</link>'
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return rssStr
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def rss2Footer() -> str:
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"""Footer for an RSS 2.0 feed
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"""
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rssStr = '</channel></rss>'
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return rssStr
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def getNewswireTags(text: str, maxTags: int) -> []:
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"""Returns a list of hashtags found in the given text
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"""
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if '#' not in text:
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return []
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if ' ' not in text:
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return []
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textSimplified = \
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text.replace(',', ' ').replace(';', ' ').replace('- ', ' ')
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textSimplified = textSimplified.replace('. ', ' ').strip()
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if textSimplified.endswith('.'):
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textSimplified = textSimplified[:len(textSimplified)-1]
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words = textSimplified.split(' ')
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tags = []
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for wrd in words:
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if not wrd.startswith('#'):
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continue
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if len(wrd) <= 1:
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continue
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if wrd in tags:
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continue
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tags.append(wrd)
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if len(tags) >= maxTags:
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break
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return tags
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def limitWordLengths(text: str, maxWordLength: int) -> str:
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"""Limits the maximum length of words so that the newswire
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column cannot become too wide
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"""
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if ' ' not in text:
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return text
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words = text.split(' ')
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result = ''
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for wrd in words:
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if len(wrd) > maxWordLength:
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wrd = wrd[:maxWordLength]
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if result:
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result += ' '
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result += wrd
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return result
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def _addNewswireDictEntry(baseDir: str, domain: str,
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newswire: {}, dateStr: str,
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title: str, link: str,
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votesStatus: str, postFilename: str,
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description: str, moderated: bool,
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mirrored: bool,
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tags: [] = [],
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maxTags: int = 32) -> None:
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"""Update the newswire dictionary
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"""
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# remove any markup
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title = removeHtml(title)
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description = removeHtml(description)
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allText = title + ' ' + description
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# check that none of the text is filtered against
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if isFiltered(baseDir, None, None, allText):
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return
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title = limitWordLengths(title, 13)
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if tags is None:
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tags = []
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# extract hashtags from the text of the feed post
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postTags = getNewswireTags(allText, maxTags)
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# combine the tags into a single list
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for tag in tags:
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if tag in postTags:
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continue
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if len(postTags) < maxTags:
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postTags.append(tag)
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# check that no tags are blocked
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for tag in postTags:
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if isBlockedHashtag(baseDir, tag):
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return
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newswire[dateStr] = [
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title,
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link,
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votesStatus,
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postFilename,
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description,
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moderated,
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postTags,
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mirrored
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]
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def _validFeedDate(pubDate: str, debug: bool = False) -> bool:
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# convert from YY-MM-DD HH:MM:SS+00:00 to
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# YY-MM-DDTHH:MM:SSZ
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postDate = pubDate.replace(' ', 'T').replace('+00:00', 'Z')
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return validPostDate(postDate, 90, debug)
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def parseFeedDate(pubDate: str) -> str:
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"""Returns a UTC date string based on the given date string
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This tries a number of formats to see which work
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"""
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formats = ("%a, %d %b %Y %H:%M:%S %z",
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"%a, %d %b %Y %H:%M:%S EST",
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"%a, %d %b %Y %H:%M:%S UT",
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"%a, %d %b %Y %H:%M:%S GMT",
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"%Y-%m-%dT%H:%M:%SZ",
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"%Y-%m-%dT%H:%M:%S%z")
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publishedDate = None
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for dateFormat in formats:
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if ',' in pubDate and ',' not in dateFormat:
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continue
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if ',' not in pubDate and ',' in dateFormat:
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continue
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if 'Z' in pubDate and 'Z' not in dateFormat:
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continue
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if 'Z' not in pubDate and 'Z' in dateFormat:
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continue
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if 'EST' not in pubDate and 'EST' in dateFormat:
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continue
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if 'GMT' not in pubDate and 'GMT' in dateFormat:
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continue
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if 'EST' in pubDate and 'EST' not in dateFormat:
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continue
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if 'UT' not in pubDate and 'UT' in dateFormat:
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continue
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if 'UT' in pubDate and 'UT' not in dateFormat:
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continue
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try:
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publishedDate = \
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datetime.strptime(pubDate, dateFormat)
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except BaseException:
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continue
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if publishedDate:
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if pubDate.endswith(' EST'):
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hoursAdded = timedelta(hours=5)
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publishedDate = publishedDate + hoursAdded
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break
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pubDateStr = None
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if publishedDate:
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offset = publishedDate.utcoffset()
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if offset:
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publishedDate = publishedDate - offset
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# convert local date to UTC
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publishedDate = publishedDate.replace(tzinfo=timezone.utc)
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pubDateStr = str(publishedDate)
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if not pubDateStr.endswith('+00:00'):
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pubDateStr += '+00:00'
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else:
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print('WARN: unrecognized date format: ' + pubDate)
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return pubDateStr
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def loadHashtagCategories(baseDir: str, language: str) -> None:
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"""Loads an rss file containing hashtag categories
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"""
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hashtagCategoriesFilename = baseDir + '/categories.xml'
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if not os.path.isfile(hashtagCategoriesFilename):
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hashtagCategoriesFilename = \
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baseDir + '/defaultcategories/' + language + '.xml'
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if not os.path.isfile(hashtagCategoriesFilename):
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return
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with open(hashtagCategoriesFilename, 'r') as fp:
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xmlStr = fp.read()
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_xml2StrToHashtagCategories(baseDir, xmlStr, 1024, True)
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def _xml2StrToHashtagCategories(baseDir: str, xmlStr: str,
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maxCategoriesFeedItemSizeKb: int,
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force: bool = False) -> None:
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"""Updates hashtag categories based upon an rss feed
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"""
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rssItems = xmlStr.split('<item>')
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maxBytes = maxCategoriesFeedItemSizeKb * 1024
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for rssItem in rssItems:
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if not rssItem:
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continue
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if len(rssItem) > maxBytes:
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print('WARN: rss categories feed item is too big')
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continue
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if '<title>' not in rssItem:
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continue
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if '</title>' not in rssItem:
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continue
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if '<description>' not in rssItem:
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continue
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if '</description>' not in rssItem:
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continue
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categoryStr = rssItem.split('<title>')[1]
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categoryStr = categoryStr.split('</title>')[0].strip()
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if not categoryStr:
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continue
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if 'CDATA' in categoryStr:
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continue
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hashtagListStr = rssItem.split('<description>')[1]
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hashtagListStr = hashtagListStr.split('</description>')[0].strip()
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if not hashtagListStr:
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continue
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if 'CDATA' in hashtagListStr:
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continue
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hashtagList = hashtagListStr.split(' ')
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if not isBlockedHashtag(baseDir, categoryStr):
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for hashtag in hashtagList:
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setHashtagCategory(baseDir, hashtag, categoryStr,
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False, force)
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def _xml2StrToDict(baseDir: str, domain: str, xmlStr: str,
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moderated: bool, mirrored: bool,
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maxPostsPerSource: int,
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maxFeedItemSizeKb: int,
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maxCategoriesFeedItemSizeKb: int) -> {}:
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"""Converts an xml RSS 2.0 string to a dictionary
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"""
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if '<item>' not in xmlStr:
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return {}
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result = {}
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# is this an rss feed containing hashtag categories?
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if '<title>#categories</title>' in xmlStr:
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_xml2StrToHashtagCategories(baseDir, xmlStr,
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maxCategoriesFeedItemSizeKb)
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return {}
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rssItems = xmlStr.split('<item>')
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postCtr = 0
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maxBytes = maxFeedItemSizeKb * 1024
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for rssItem in rssItems:
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if not rssItem:
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continue
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if len(rssItem) > maxBytes:
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print('WARN: rss feed item is too big')
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continue
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if '<title>' not in rssItem:
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continue
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if '</title>' not in rssItem:
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continue
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if '<link>' not in rssItem:
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continue
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if '</link>' not in rssItem:
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continue
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if '<pubDate>' not in rssItem:
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continue
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if '</pubDate>' not in rssItem:
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continue
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title = rssItem.split('<title>')[1]
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title = _removeCDATA(title.split('</title>')[0])
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title = removeHtml(title)
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description = ''
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if '<description>' in rssItem and '</description>' in rssItem:
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description = rssItem.split('<description>')[1]
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description = removeHtml(description.split('</description>')[0])
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else:
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if '<media:description>' in rssItem and \
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'</media:description>' in rssItem:
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description = rssItem.split('<media:description>')[1]
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description = description.split('</media:description>')[0]
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description = removeHtml(description)
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link = rssItem.split('<link>')[1]
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link = link.split('</link>')[0]
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if '://' not in link:
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continue
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itemDomain = link.split('://')[1]
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if '/' in itemDomain:
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itemDomain = itemDomain.split('/')[0]
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if isBlockedDomain(baseDir, itemDomain):
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continue
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pubDate = rssItem.split('<pubDate>')[1]
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pubDate = pubDate.split('</pubDate>')[0]
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pubDateStr = parseFeedDate(pubDate)
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if pubDateStr:
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if _validFeedDate(pubDateStr):
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postFilename = ''
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votesStatus = []
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_addNewswireDictEntry(baseDir, domain,
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result, pubDateStr,
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title, link,
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votesStatus, postFilename,
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description, moderated,
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mirrored)
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postCtr += 1
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if postCtr >= maxPostsPerSource:
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break
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if postCtr > 0:
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print('Added ' + str(postCtr) +
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' rss 2.0 feed items to newswire')
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return result
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def _xml1StrToDict(baseDir: str, domain: str, xmlStr: str,
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moderated: bool, mirrored: bool,
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maxPostsPerSource: int,
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maxFeedItemSizeKb: int,
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maxCategoriesFeedItemSizeKb: int) -> {}:
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"""Converts an xml RSS 1.0 string to a dictionary
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https://validator.w3.org/feed/docs/rss1.html
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"""
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itemStr = '<item'
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if itemStr not in xmlStr:
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return {}
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result = {}
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# is this an rss feed containing hashtag categories?
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if '<title>#categories</title>' in xmlStr:
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_xml2StrToHashtagCategories(baseDir, xmlStr,
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maxCategoriesFeedItemSizeKb)
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return {}
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rssItems = xmlStr.split(itemStr)
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postCtr = 0
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maxBytes = maxFeedItemSizeKb * 1024
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for rssItem in rssItems:
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if not rssItem:
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continue
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if len(rssItem) > maxBytes:
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print('WARN: rss 1.0 feed item is too big')
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continue
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if rssItem.startswith('s>'):
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continue
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if '<title>' not in rssItem:
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continue
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if '</title>' not in rssItem:
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continue
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if '<link>' not in rssItem:
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continue
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if '</link>' not in rssItem:
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continue
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if '<dc:date>' not in rssItem:
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continue
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if '</dc:date>' not in rssItem:
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continue
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title = rssItem.split('<title>')[1]
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title = _removeCDATA(title.split('</title>')[0])
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title = removeHtml(title)
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description = ''
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if '<description>' in rssItem and '</description>' in rssItem:
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description = rssItem.split('<description>')[1]
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description = removeHtml(description.split('</description>')[0])
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else:
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if '<media:description>' in rssItem and \
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'</media:description>' in rssItem:
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description = rssItem.split('<media:description>')[1]
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description = description.split('</media:description>')[0]
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description = removeHtml(description)
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link = rssItem.split('<link>')[1]
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link = link.split('</link>')[0]
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if '://' not in link:
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continue
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itemDomain = link.split('://')[1]
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if '/' in itemDomain:
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itemDomain = itemDomain.split('/')[0]
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if isBlockedDomain(baseDir, itemDomain):
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continue
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pubDate = rssItem.split('<dc:date>')[1]
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pubDate = pubDate.split('</dc:date>')[0]
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pubDateStr = parseFeedDate(pubDate)
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if pubDateStr:
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if _validFeedDate(pubDateStr):
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postFilename = ''
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votesStatus = []
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_addNewswireDictEntry(baseDir, domain,
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result, pubDateStr,
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title, link,
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votesStatus, postFilename,
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description, moderated,
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mirrored)
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postCtr += 1
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if postCtr >= maxPostsPerSource:
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break
|
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if postCtr > 0:
|
|
print('Added ' + str(postCtr) +
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' rss 1.0 feed items to newswire')
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|
return result
|
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|
|
|
|
def _atomFeedToDict(baseDir: str, domain: str, xmlStr: str,
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moderated: bool, mirrored: bool,
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|
maxPostsPerSource: int,
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|
maxFeedItemSizeKb: int) -> {}:
|
|
"""Converts an atom feed string to a dictionary
|
|
"""
|
|
if '<entry>' not in xmlStr:
|
|
return {}
|
|
result = {}
|
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atomItems = xmlStr.split('<entry>')
|
|
postCtr = 0
|
|
maxBytes = maxFeedItemSizeKb * 1024
|
|
for atomItem in atomItems:
|
|
if not atomItem:
|
|
continue
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|
if len(atomItem) > maxBytes:
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print('WARN: atom feed item is too big')
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|
continue
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|
if '<title>' not in atomItem:
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continue
|
|
if '</title>' not in atomItem:
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continue
|
|
if '<link>' not in atomItem:
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continue
|
|
if '</link>' not in atomItem:
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continue
|
|
if '<updated>' not in atomItem:
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continue
|
|
if '</updated>' not in atomItem:
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continue
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title = atomItem.split('<title>')[1]
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title = _removeCDATA(title.split('</title>')[0])
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title = removeHtml(title)
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description = ''
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|
if '<summary>' in atomItem and '</summary>' in atomItem:
|
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description = atomItem.split('<summary>')[1]
|
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description = removeHtml(description.split('</summary>')[0])
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|
else:
|
|
if '<media:description>' in atomItem and \
|
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'</media:description>' in atomItem:
|
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description = atomItem.split('<media:description>')[1]
|
|
description = description.split('</media:description>')[0]
|
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description = removeHtml(description)
|
|
link = atomItem.split('<link>')[1]
|
|
link = link.split('</link>')[0]
|
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if '://' not in link:
|
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continue
|
|
itemDomain = link.split('://')[1]
|
|
if '/' in itemDomain:
|
|
itemDomain = itemDomain.split('/')[0]
|
|
if isBlockedDomain(baseDir, itemDomain):
|
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continue
|
|
pubDate = atomItem.split('<updated>')[1]
|
|
pubDate = pubDate.split('</updated>')[0]
|
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|
|
pubDateStr = parseFeedDate(pubDate)
|
|
if pubDateStr:
|
|
if _validFeedDate(pubDateStr):
|
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postFilename = ''
|
|
votesStatus = []
|
|
_addNewswireDictEntry(baseDir, domain,
|
|
result, pubDateStr,
|
|
title, link,
|
|
votesStatus, postFilename,
|
|
description, moderated,
|
|
mirrored)
|
|
postCtr += 1
|
|
if postCtr >= maxPostsPerSource:
|
|
break
|
|
if postCtr > 0:
|
|
print('Added ' + str(postCtr) +
|
|
' atom feed items to newswire')
|
|
return result
|
|
|
|
|
|
def _jsonFeedV1ToDict(baseDir: str, domain: str, xmlStr: str,
|
|
moderated: bool, mirrored: bool,
|
|
maxPostsPerSource: int,
|
|
maxFeedItemSizeKb: int) -> {}:
|
|
"""Converts a json feed string to a dictionary
|
|
See https://jsonfeed.org/version/1.1
|
|
"""
|
|
if '"items"' not in xmlStr:
|
|
return {}
|
|
try:
|
|
feedJson = json.loads(xmlStr)
|
|
except BaseException:
|
|
return {}
|
|
maxBytes = maxFeedItemSizeKb * 1024
|
|
if not feedJson.get('version'):
|
|
return {}
|
|
if not feedJson['version'].startswith('https://jsonfeed.org/version/1'):
|
|
return {}
|
|
if not feedJson.get('items'):
|
|
return {}
|
|
if not isinstance(feedJson['items'], list):
|
|
return {}
|
|
postCtr = 0
|
|
result = {}
|
|
for jsonFeedItem in feedJson['items']:
|
|
if not jsonFeedItem:
|
|
continue
|
|
if not isinstance(jsonFeedItem, dict):
|
|
continue
|
|
if not jsonFeedItem.get('url'):
|
|
continue
|
|
if not isinstance(jsonFeedItem['url'], str):
|
|
continue
|
|
if not jsonFeedItem.get('date_published'):
|
|
if not jsonFeedItem.get('date_modified'):
|
|
continue
|
|
if not jsonFeedItem.get('content_text'):
|
|
if not jsonFeedItem.get('content_html'):
|
|
continue
|
|
if jsonFeedItem.get('content_html'):
|
|
if not isinstance(jsonFeedItem['content_html'], str):
|
|
continue
|
|
title = removeHtml(jsonFeedItem['content_html'])
|
|
else:
|
|
if not isinstance(jsonFeedItem['content_text'], str):
|
|
continue
|
|
title = removeHtml(jsonFeedItem['content_text'])
|
|
if len(title) > maxBytes:
|
|
print('WARN: json feed title is too long')
|
|
continue
|
|
description = ''
|
|
if jsonFeedItem.get('description'):
|
|
if not isinstance(jsonFeedItem['description'], str):
|
|
continue
|
|
description = removeHtml(jsonFeedItem['description'])
|
|
if len(description) > maxBytes:
|
|
print('WARN: json feed description is too long')
|
|
continue
|
|
if jsonFeedItem.get('tags'):
|
|
if isinstance(jsonFeedItem['tags'], list):
|
|
for tagName in jsonFeedItem['tags']:
|
|
if not isinstance(tagName, str):
|
|
continue
|
|
if ' ' in tagName:
|
|
continue
|
|
if not tagName.startswith('#'):
|
|
tagName = '#' + tagName
|
|
if tagName not in description:
|
|
description += ' ' + tagName
|
|
|
|
link = jsonFeedItem['url']
|
|
if '://' not in link:
|
|
continue
|
|
if len(link) > maxBytes:
|
|
print('WARN: json feed link is too long')
|
|
continue
|
|
itemDomain = link.split('://')[1]
|
|
if '/' in itemDomain:
|
|
itemDomain = itemDomain.split('/')[0]
|
|
if isBlockedDomain(baseDir, itemDomain):
|
|
continue
|
|
if jsonFeedItem.get('date_published'):
|
|
if not isinstance(jsonFeedItem['date_published'], str):
|
|
continue
|
|
pubDate = jsonFeedItem['date_published']
|
|
else:
|
|
if not isinstance(jsonFeedItem['date_modified'], str):
|
|
continue
|
|
pubDate = jsonFeedItem['date_modified']
|
|
|
|
pubDateStr = parseFeedDate(pubDate)
|
|
if pubDateStr:
|
|
if _validFeedDate(pubDateStr):
|
|
postFilename = ''
|
|
votesStatus = []
|
|
_addNewswireDictEntry(baseDir, domain,
|
|
result, pubDateStr,
|
|
title, link,
|
|
votesStatus, postFilename,
|
|
description, moderated,
|
|
mirrored)
|
|
postCtr += 1
|
|
if postCtr >= maxPostsPerSource:
|
|
break
|
|
if postCtr > 0:
|
|
print('Added ' + str(postCtr) +
|
|
' json feed items to newswire')
|
|
return result
|
|
|
|
|
|
def _atomFeedYTToDict(baseDir: str, domain: str, xmlStr: str,
|
|
moderated: bool, mirrored: bool,
|
|
maxPostsPerSource: int,
|
|
maxFeedItemSizeKb: int) -> {}:
|
|
"""Converts an atom-style YouTube feed string to a dictionary
|
|
"""
|
|
if '<entry>' not in xmlStr:
|
|
return {}
|
|
if isBlockedDomain(baseDir, 'www.youtube.com'):
|
|
return {}
|
|
result = {}
|
|
atomItems = xmlStr.split('<entry>')
|
|
postCtr = 0
|
|
maxBytes = maxFeedItemSizeKb * 1024
|
|
for atomItem in atomItems:
|
|
if not atomItem:
|
|
continue
|
|
if not atomItem.strip():
|
|
continue
|
|
if len(atomItem) > maxBytes:
|
|
print('WARN: atom feed item is too big')
|
|
continue
|
|
if '<title>' not in atomItem:
|
|
continue
|
|
if '</title>' not in atomItem:
|
|
continue
|
|
if '<published>' not in atomItem:
|
|
continue
|
|
if '</published>' not in atomItem:
|
|
continue
|
|
if '<yt:videoId>' not in atomItem:
|
|
continue
|
|
if '</yt:videoId>' not in atomItem:
|
|
continue
|
|
title = atomItem.split('<title>')[1]
|
|
title = _removeCDATA(title.split('</title>')[0])
|
|
description = ''
|
|
if '<media:description>' in atomItem and \
|
|
'</media:description>' in atomItem:
|
|
description = atomItem.split('<media:description>')[1]
|
|
description = description.split('</media:description>')[0]
|
|
description = removeHtml(description)
|
|
elif '<summary>' in atomItem and '</summary>' in atomItem:
|
|
description = atomItem.split('<summary>')[1]
|
|
description = description.split('</summary>')[0]
|
|
description = removeHtml(description)
|
|
link = atomItem.split('<yt:videoId>')[1]
|
|
link = link.split('</yt:videoId>')[0]
|
|
link = 'https://www.youtube.com/watch?v=' + link.strip()
|
|
pubDate = atomItem.split('<published>')[1]
|
|
pubDate = pubDate.split('</published>')[0]
|
|
|
|
pubDateStr = parseFeedDate(pubDate)
|
|
if pubDateStr:
|
|
if _validFeedDate(pubDateStr):
|
|
postFilename = ''
|
|
votesStatus = []
|
|
_addNewswireDictEntry(baseDir, domain,
|
|
result, pubDateStr,
|
|
title, link,
|
|
votesStatus, postFilename,
|
|
description, moderated, mirrored)
|
|
postCtr += 1
|
|
if postCtr >= maxPostsPerSource:
|
|
break
|
|
if postCtr > 0:
|
|
print('Added ' + str(postCtr) + ' YouTube feed items to newswire')
|
|
return result
|
|
|
|
|
|
def _xmlStrToDict(baseDir: str, domain: str, xmlStr: str,
|
|
moderated: bool, mirrored: bool,
|
|
maxPostsPerSource: int,
|
|
maxFeedItemSizeKb: int,
|
|
maxCategoriesFeedItemSizeKb: int) -> {}:
|
|
"""Converts an xml string to a dictionary
|
|
"""
|
|
if '<yt:videoId>' in xmlStr and '<yt:channelId>' in xmlStr:
|
|
print('YouTube feed: reading')
|
|
return _atomFeedYTToDict(baseDir, domain,
|
|
xmlStr, moderated, mirrored,
|
|
maxPostsPerSource, maxFeedItemSizeKb)
|
|
elif 'rss version="2.0"' in xmlStr:
|
|
return _xml2StrToDict(baseDir, domain,
|
|
xmlStr, moderated, mirrored,
|
|
maxPostsPerSource, maxFeedItemSizeKb,
|
|
maxCategoriesFeedItemSizeKb)
|
|
elif '<?xml version="1.0"' in xmlStr:
|
|
return _xml1StrToDict(baseDir, domain,
|
|
xmlStr, moderated, mirrored,
|
|
maxPostsPerSource, maxFeedItemSizeKb,
|
|
maxCategoriesFeedItemSizeKb)
|
|
elif 'xmlns="http://www.w3.org/2005/Atom"' in xmlStr:
|
|
return _atomFeedToDict(baseDir, domain,
|
|
xmlStr, moderated, mirrored,
|
|
maxPostsPerSource, maxFeedItemSizeKb)
|
|
elif 'https://jsonfeed.org/version/1' in xmlStr:
|
|
return _jsonFeedV1ToDict(baseDir, domain,
|
|
xmlStr, moderated, mirrored,
|
|
maxPostsPerSource, maxFeedItemSizeKb)
|
|
return {}
|
|
|
|
|
|
def _YTchannelToAtomFeed(url: str) -> str:
|
|
"""Converts a YouTube channel url into an atom feed url
|
|
"""
|
|
if 'youtube.com/channel/' not in url:
|
|
return url
|
|
channelId = url.split('youtube.com/channel/')[1].strip()
|
|
channelUrl = \
|
|
'https://www.youtube.com/feeds/videos.xml?channel_id=' + channelId
|
|
print('YouTube feed: ' + channelUrl)
|
|
return channelUrl
|
|
|
|
|
|
def getRSS(baseDir: str, domain: str, session, url: str,
|
|
moderated: bool, mirrored: bool,
|
|
maxPostsPerSource: int, maxFeedSizeKb: int,
|
|
maxFeedItemSizeKb: int,
|
|
maxCategoriesFeedItemSizeKb: int) -> {}:
|
|
"""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, application/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')
|
|
url = _YTchannelToAtomFeed(url)
|
|
try:
|
|
result = session.get(url, headers=sessionHeaders, params=sessionParams)
|
|
if result:
|
|
if int(len(result.text) / 1024) < maxFeedSizeKb and \
|
|
not containsInvalidChars(result.text):
|
|
return _xmlStrToDict(baseDir, domain, result.text,
|
|
moderated, mirrored,
|
|
maxPostsPerSource,
|
|
maxFeedItemSizeKb,
|
|
maxCategoriesFeedItemSizeKb)
|
|
else:
|
|
print('WARN: feed is too large, ' +
|
|
'or contains invalid characters: ' + url)
|
|
else:
|
|
print('WARN: no result returned for feed ' + url)
|
|
except requests.exceptions.RequestException as e:
|
|
print('WARN: getRSS failed\nurl: ' + str(url) + ', ' +
|
|
'headers: ' + str(sessionHeaders) + ', ' +
|
|
'params: ' + str(sessionParams) + ', ' + str(e))
|
|
except ValueError as e:
|
|
print('WARN: getRSS failed\nurl: ' + str(url) + ', ' +
|
|
'headers: ' + str(sessionHeaders) + ', ' +
|
|
'params: ' + str(sessionParams) + ', ' + str(e))
|
|
except SocketError as e:
|
|
if e.errno == errno.ECONNRESET:
|
|
print('WARN: connection was reset during getRSS ' + str(e))
|
|
else:
|
|
print('WARN: getRSS, ' + str(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)
|
|
if not newswire:
|
|
return ''
|
|
for published, fields in newswire.items():
|
|
if '+00:00' in published:
|
|
published = published.replace('+00:00', 'Z').strip()
|
|
published = published.replace(' ', 'T')
|
|
else:
|
|
publishedWithOffset = \
|
|
datetime.strptime(published, "%Y-%m-%d %H:%M:%S%z")
|
|
published = publishedWithOffset.strftime("%Y-%m-%dT%H:%M:%SZ")
|
|
try:
|
|
pubDate = datetime.strptime(published, "%Y-%m-%dT%H:%M:%SZ")
|
|
except Exception as e:
|
|
print('WARN: Unable to convert date ' + published + ' ' + str(e))
|
|
continue
|
|
rssStr += \
|
|
'<item>\n' + \
|
|
' <title>' + fields[0] + '</title>\n'
|
|
description = removeHtml(firstParagraphFromString(fields[4]))
|
|
rssStr += ' <description>' + description + '</description>\n'
|
|
url = fields[1]
|
|
if '://' not in url:
|
|
if domainFull not in url:
|
|
url = httpPrefix + '://' + domainFull + url
|
|
rssStr += ' <link>' + url + '</link>\n'
|
|
|
|
rssDateStr = pubDate.strftime("%a, %d %b %Y %H:%M:%S UT")
|
|
rssStr += \
|
|
' <pubDate>' + rssDateStr + '</pubDate>\n' + \
|
|
'</item>\n'
|
|
rssStr += rss2Footer()
|
|
return rssStr
|
|
|
|
|
|
def _isNewswireBlogPost(postJsonObject: {}) -> bool:
|
|
"""Is the given object a blog post?
|
|
There isn't any difference between a blog post and a newswire blog post
|
|
but we may here need to check for different properties than
|
|
isBlogPost does
|
|
"""
|
|
if not postJsonObject:
|
|
return False
|
|
if not hasObjectDict(postJsonObject):
|
|
return False
|
|
if postJsonObject['object'].get('summary') and \
|
|
postJsonObject['object'].get('url') and \
|
|
postJsonObject['object'].get('content') and \
|
|
postJsonObject['object'].get('published'):
|
|
return isPublicPost(postJsonObject)
|
|
return False
|
|
|
|
|
|
def _getHashtagsFromPost(postJsonObject: {}) -> []:
|
|
"""Returns a list of any hashtags within a post
|
|
"""
|
|
if not hasObjectDict(postJsonObject):
|
|
return []
|
|
if not postJsonObject['object'].get('tag'):
|
|
return []
|
|
if not isinstance(postJsonObject['object']['tag'], list):
|
|
return []
|
|
tags = []
|
|
for tg in postJsonObject['object']['tag']:
|
|
if not isinstance(tg, dict):
|
|
continue
|
|
if not tg.get('name'):
|
|
continue
|
|
if not tg.get('type'):
|
|
continue
|
|
if tg['type'] != 'Hashtag':
|
|
continue
|
|
if tg['name'] not in tags:
|
|
tags.append(tg['name'])
|
|
return tags
|
|
|
|
|
|
def _addAccountBlogsToNewswire(baseDir: str, nickname: str, domain: str,
|
|
newswire: {},
|
|
maxBlogsPerAccount: int,
|
|
indexFilename: str,
|
|
maxTags: int, systemLanguage: str) -> None:
|
|
"""Adds blogs for the given account to the newswire
|
|
"""
|
|
if not os.path.isfile(indexFilename):
|
|
return
|
|
# local blog entries are unmoderated by default
|
|
moderated = False
|
|
|
|
# local blogs can potentially be moderated
|
|
moderatedFilename = \
|
|
acctDir(baseDir, nickname, domain) + '/.newswiremoderated'
|
|
if os.path.isfile(moderatedFilename):
|
|
moderated = True
|
|
|
|
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 for newswire ' + postUrl)
|
|
ctr += 1
|
|
if ctr >= maxBlogsPerAccount:
|
|
break
|
|
continue
|
|
|
|
postJsonObject = None
|
|
if fullPostFilename:
|
|
postJsonObject = loadJson(fullPostFilename)
|
|
if _isNewswireBlogPost(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')
|
|
content = \
|
|
getBaseContentFromPost(postJsonObject, systemLanguage)
|
|
description = firstParagraphFromString(content)
|
|
description = removeHtml(description)
|
|
tagsFromPost = _getHashtagsFromPost(postJsonObject)
|
|
_addNewswireDictEntry(baseDir, domain,
|
|
newswire, published,
|
|
postJsonObject['object']['summary'],
|
|
postJsonObject['object']['url'],
|
|
votes, fullPostFilename,
|
|
description, moderated, False,
|
|
tagsFromPost,
|
|
maxTags)
|
|
|
|
ctr += 1
|
|
if ctr >= maxBlogsPerAccount:
|
|
break
|
|
|
|
|
|
def _addBlogsToNewswire(baseDir: str, domain: str, newswire: {},
|
|
maxBlogsPerAccount: int,
|
|
maxTags: int, systemLanguage: str) -> 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 isAccountDir(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, maxTags,
|
|
systemLanguage)
|
|
break
|
|
|
|
# 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):
|
|
try:
|
|
os.remove(newswireModerationFilename)
|
|
except BaseException:
|
|
pass
|
|
|
|
|
|
def getDictFromNewswire(session, baseDir: str, domain: str,
|
|
maxPostsPerSource: int, maxFeedSizeKb: int,
|
|
maxTags: int, maxFeedItemSizeKb: int,
|
|
maxNewswirePosts: int,
|
|
maxCategoriesFeedItemSizeKb: int,
|
|
systemLanguage: str) -> {}:
|
|
"""Gets rss feeds as a dictionary from newswire file
|
|
"""
|
|
subscriptionsFilename = baseDir + '/accounts/newswire.txt'
|
|
if not os.path.isfile(subscriptionsFilename):
|
|
return {}
|
|
|
|
maxPostsPerSource = 5
|
|
|
|
# add rss feeds
|
|
rssFeed = []
|
|
with open(subscriptionsFilename, 'r') as fp:
|
|
rssFeed = fp.readlines()
|
|
result = {}
|
|
for url in rssFeed:
|
|
url = url.strip()
|
|
|
|
# Does this contain a url?
|
|
if '://' not in url:
|
|
continue
|
|
|
|
# is this a comment?
|
|
if url.startswith('#'):
|
|
continue
|
|
|
|
# should this feed be moderated?
|
|
moderated = False
|
|
if '*' in url:
|
|
moderated = True
|
|
url = url.replace('*', '').strip()
|
|
|
|
# should this feed content be mirrored?
|
|
mirrored = False
|
|
if '!' in url:
|
|
mirrored = True
|
|
url = url.replace('!', '').strip()
|
|
|
|
itemsList = getRSS(baseDir, domain, session, url,
|
|
moderated, mirrored,
|
|
maxPostsPerSource, maxFeedSizeKb,
|
|
maxFeedItemSizeKb,
|
|
maxCategoriesFeedItemSizeKb)
|
|
if itemsList:
|
|
for dateStr, item in itemsList.items():
|
|
result[dateStr] = item
|
|
|
|
# add blogs from each user account
|
|
_addBlogsToNewswire(baseDir, domain, result,
|
|
maxPostsPerSource, maxTags, systemLanguage)
|
|
|
|
# sort into chronological order, latest first
|
|
sortedResult = OrderedDict(sorted(result.items(), reverse=True))
|
|
|
|
# are there too many posts? If so then remove the oldest ones
|
|
noOfPosts = len(sortedResult.items())
|
|
if noOfPosts > maxNewswirePosts:
|
|
ctr = 0
|
|
removals = []
|
|
for dateStr, item in sortedResult.items():
|
|
ctr += 1
|
|
if ctr > maxNewswirePosts:
|
|
removals.append(dateStr)
|
|
for r in removals:
|
|
sortedResult.pop(r)
|
|
|
|
return sortedResult
|