mirror of https://gitlab.com/bashrc2/epicyon
1730 lines
62 KiB
Python
1730 lines
62 KiB
Python
__filename__ = "content.py"
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__author__ = "Bob Mottram"
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__license__ = "AGPL3+"
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__version__ = "1.3.0"
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__maintainer__ = "Bob Mottram"
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__email__ = "bob@libreserver.org"
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__status__ = "Production"
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__module_group__ = "Core"
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import difflib
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import math
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import html
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import os
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import email.parser
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import urllib.parse
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from shutil import copyfile
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from dateutil.parser import parse
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from utils import convert_published_to_local_timezone
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from utils import has_object_dict
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from utils import valid_hash_tag
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from utils import dangerous_svg
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from utils import remove_domain_port
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from utils import get_image_extensions
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from utils import load_json
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from utils import save_json
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from utils import file_last_modified
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from utils import get_link_prefixes
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from utils import dangerous_markup
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from utils import is_pgp_encrypted
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from utils import contains_pgp_public_key
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from utils import acct_dir
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from utils import is_float
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from utils import get_currencies
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from utils import remove_html
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from utils import remove_eol
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from petnames import get_pet_name
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from session import download_image
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MUSIC_SITES = ('soundcloud.com', 'bandcamp.com')
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MAX_LINK_LENGTH = 40
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REMOVE_MARKUP = (
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'b', 'i', 'ul', 'ol', 'li', 'em', 'strong',
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'blockquote', 'h1', 'h2', 'h3', 'h4', 'h5'
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)
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INVALID_CONTENT_STRINGS = (
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'mute', 'unmute', 'editeventpost', 'notifypost',
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'delete', 'options', 'page', 'repeat',
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'bm', 'tl', 'actor', 'unrepeat', 'eventid',
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'unannounce', 'like', 'unlike', 'bookmark',
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'unbookmark', 'likedBy', 'time',
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'year', 'month', 'day', 'editnewpost',
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'graph', 'showshare', 'category', 'showwanted',
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'rmshare', 'rmwanted', 'repeatprivate',
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'unrepeatprivate', 'replyto',
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'replyfollowers', 'replydm', 'replychat', 'editblogpost',
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'handle', 'blockdomain'
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)
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def valid_url_lengths(content: str, max_url_length: int) -> bool:
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"""Returns true if the given content contains urls which are too long
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"""
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if '://' not in content:
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return True
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sections = content.split('://')
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ctr = 0
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for text in sections:
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if ctr == 0:
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ctr += 1
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continue
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if '"' in text:
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url = text.split('"')[0]
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if '<' not in url and '>' not in url:
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if len(url) > max_url_length:
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return False
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return True
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def remove_html_tag(html_str: str, tag: str) -> str:
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"""Removes a given tag from a html string
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"""
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tag_found = True
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while tag_found:
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match_str = ' ' + tag + '="'
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if match_str not in html_str:
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tag_found = False
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break
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sections = html_str.split(match_str, 1)
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if '"' not in sections[1]:
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tag_found = False
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break
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html_str = sections[0] + sections[1].split('"', 1)[1]
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return html_str
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def _remove_quotes_within_quotes(content: str) -> str:
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"""Removes any blockquote inside blockquote
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"""
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if '<blockquote>' not in content:
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return content
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if '</blockquote>' not in content:
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return content
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ctr = 1
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found = True
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while found:
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prefix = content.split('<blockquote>', ctr)[0] + '<blockquote>'
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quoted_str = content.split('<blockquote>', ctr)[1]
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if '</blockquote>' not in quoted_str:
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found = False
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else:
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end_str = quoted_str.split('</blockquote>')[1]
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quoted_str = quoted_str.split('</blockquote>')[0]
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if '<blockquote>' not in end_str:
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found = False
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if '<blockquote>' in quoted_str:
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quoted_str = quoted_str.replace('<blockquote>', '')
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content = prefix + quoted_str + '</blockquote>' + end_str
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ctr += 1
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return content
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def html_replace_email_quote(content: str) -> str:
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"""Replaces an email style quote "> Some quote" with html blockquote
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"""
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if is_pgp_encrypted(content) or contains_pgp_public_key(content):
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return content
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# replace quote paragraph
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if '<p>"' in content:
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if '"</p>' in content:
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if content.count('<p>"') == content.count('"</p>'):
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content = content.replace('<p>"', '<p><blockquote>')
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content = content.replace('"</p>', '</blockquote></p>')
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if '>\u201c' in content:
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if '\u201d<' in content:
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if content.count('>\u201c') == content.count('\u201d<'):
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content = content.replace('>\u201c', '><blockquote>')
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content = content.replace('\u201d<', '</blockquote><')
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# replace email style quote
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if '>> ' not in content:
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return content
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content_str = content.replace('<p>', '')
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content_lines = content_str.split('</p>')
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new_content = ''
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for line_str in content_lines:
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if not line_str:
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continue
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if '>> ' not in line_str:
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if line_str.startswith('> '):
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line_str = line_str.replace('> ', '<blockquote>')
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line_str = line_str.replace('>', '<br>')
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new_content += '<p>' + line_str + '</blockquote></p>'
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else:
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new_content += '<p>' + line_str + '</p>'
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else:
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line_str = line_str.replace('>> ', '><blockquote>')
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if line_str.startswith('>'):
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line_str = line_str.replace('>', '<blockquote>', 1)
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else:
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line_str = line_str.replace('>', '<br>')
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new_content += '<p>' + line_str + '</blockquote></p>'
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return _remove_quotes_within_quotes(new_content)
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def html_replace_quote_marks(content: str) -> str:
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"""Replaces quotes with html formatting
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"hello" becomes <q>hello</q>
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"""
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if is_pgp_encrypted(content) or contains_pgp_public_key(content):
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return content
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if '"' not in content:
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if '"' not in content:
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return content
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# only if there are a few quote marks
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if content.count('"') > 4:
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return content
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if content.count('"') > 4:
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return content
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new_content = content
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if '"' in content:
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sections = content.split('"')
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if len(sections) > 1:
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new_content = ''
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open_quote = True
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markup = False
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for char in content:
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curr_char = char
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if char == '<':
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markup = True
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elif char == '>':
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markup = False
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elif char == '"' and not markup:
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if open_quote:
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curr_char = '“'
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else:
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curr_char = '”'
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open_quote = not open_quote
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new_content += curr_char
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if '"' in new_content:
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open_quote = True
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content = new_content
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new_content = ''
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ctr = 0
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sections = content.split('"')
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no_of_sections = len(sections)
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for sec in sections:
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new_content += sec
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if ctr < no_of_sections - 1:
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if open_quote:
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new_content += '“'
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else:
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new_content += '”'
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open_quote = not open_quote
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ctr += 1
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return new_content
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def dangerous_css(filename: str, allow_local_network_access: bool) -> bool:
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"""Returns true is the css file contains code which
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can create security problems
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"""
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if not os.path.isfile(filename):
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return False
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content = None
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try:
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with open(filename, 'r', encoding='utf-8') as css_file:
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content = css_file.read().lower()
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except OSError:
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print('EX: unable to read css file ' + filename)
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if not content:
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return False
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css_matches = (
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'behavior:', ':expression', '?php', '.php',
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'google', 'regexp', 'localhost',
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'127.0.', '192.168', '10.0.', '@import'
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)
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for cssmatch in css_matches:
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if cssmatch in content:
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return True
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# search for non-local web links
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if 'url(' in content:
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url_list = content.split('url(')
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ctr = 0
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for url_str in url_list:
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if ctr > 0:
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if ')' in url_str:
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url_str = url_str.split(')')[0]
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if 'http' in url_str or \
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'ipfs' in url_str or \
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'ipns' in url_str:
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print('ERROR: non-local web link in CSS ' +
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filename)
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return True
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ctr += 1
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# an attacker can include html inside of the css
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# file as a comment and this may then be run from the html
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if dangerous_markup(content, allow_local_network_access):
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return True
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return False
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def switch_words(base_dir: str, nickname: str, domain: str, content: str,
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rules: [] = []) -> str:
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"""Performs word replacements. eg. Trump -> The Orange Menace
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"""
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if is_pgp_encrypted(content) or contains_pgp_public_key(content):
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return content
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if not rules:
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switch_words_filename = \
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acct_dir(base_dir, nickname, domain) + '/replacewords.txt'
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if not os.path.isfile(switch_words_filename):
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return content
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try:
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with open(switch_words_filename, 'r',
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encoding='utf-8') as words_file:
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rules = words_file.readlines()
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except OSError:
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print('EX: unable to read switches ' + switch_words_filename)
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for line in rules:
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replace_str = remove_eol(line)
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splitters = ('->', ':', ',', ';', '-')
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word_transform = None
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for split_str in splitters:
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if split_str in replace_str:
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word_transform = replace_str.split(split_str)
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break
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if not word_transform:
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continue
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if len(word_transform) == 2:
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replace_str1 = word_transform[0].strip().replace('"', '')
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replace_str2 = word_transform[1].strip().replace('"', '')
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content = content.replace(replace_str1, replace_str2)
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return content
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def _save_custom_emoji(session, base_dir: str, emojiName: str, url: str,
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debug: bool) -> None:
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"""Saves custom emoji to file
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"""
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if not session:
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if debug:
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print('EX: _save_custom_emoji no session')
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return
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if '.' not in url:
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return
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ext = url.split('.')[-1]
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if ext != 'png':
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if debug:
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print('EX: Custom emoji is wrong format ' + url)
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return
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emojiName = emojiName.replace(':', '').strip().lower()
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custom_emoji_dir = base_dir + '/emojicustom'
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if not os.path.isdir(custom_emoji_dir):
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os.mkdir(custom_emoji_dir)
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emoji_image_filename = custom_emoji_dir + '/' + emojiName + '.' + ext
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if not download_image(session, url,
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emoji_image_filename, debug, False):
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if debug:
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print('EX: custom emoji not downloaded ' + url)
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return
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emoji_json_filename = custom_emoji_dir + '/emoji.json'
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emoji_json = {}
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if os.path.isfile(emoji_json_filename):
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emoji_json = load_json(emoji_json_filename, 0, 1)
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if not emoji_json:
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emoji_json = {}
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if not emoji_json.get(emojiName):
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emoji_json[emojiName] = emojiName
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save_json(emoji_json, emoji_json_filename)
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if debug:
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print('EX: Saved custom emoji ' + emoji_json_filename)
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elif debug:
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print('EX: cusom emoji already saved')
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def _get_emoji_name_from_code(base_dir: str, emoji_code: str) -> str:
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"""Returns the emoji name from its code
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"""
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emojis_filename = base_dir + '/emoji/emoji.json'
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if not os.path.isfile(emojis_filename):
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emojis_filename = base_dir + '/emoji/default_emoji.json'
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if not os.path.isfile(emojis_filename):
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return None
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emojis_json = load_json(emojis_filename)
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if not emojis_json:
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return None
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for emoji_name, code in emojis_json.items():
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if code == emoji_code:
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return emoji_name
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return None
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def _update_common_emoji(base_dir: str, emoji_content: str) -> None:
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"""Updates the list of commonly used emoji
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"""
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if '.' in emoji_content:
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emoji_content = emoji_content.split('.')[0]
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emoji_content = emoji_content.replace(':', '')
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if emoji_content.startswith('0x'):
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# lookup the name for an emoji code
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emoji_code = emoji_content[2:]
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emoji_content = _get_emoji_name_from_code(base_dir, emoji_code)
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if not emoji_content:
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return
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common_emoji_filename = base_dir + '/accounts/common_emoji.txt'
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common_emoji = None
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if os.path.isfile(common_emoji_filename):
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try:
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with open(common_emoji_filename, 'r',
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encoding='utf-8') as fp_emoji:
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common_emoji = fp_emoji.readlines()
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except OSError:
|
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print('EX: unable to load common emoji file')
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if common_emoji:
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new_common_emoji = []
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emoji_found = False
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for line in common_emoji:
|
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if ' ' + emoji_content in line:
|
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if not emoji_found:
|
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emoji_found = True
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counter = 1
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count_str = line.split(' ')[0]
|
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if count_str.isdigit():
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counter = int(count_str) + 1
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count_str = str(counter).zfill(16)
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line = count_str + ' ' + emoji_content
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new_common_emoji.append(line)
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else:
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line1 = remove_eol(line)
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new_common_emoji.append(line1)
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if not emoji_found:
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new_common_emoji.append(str(1).zfill(16) + ' ' + emoji_content)
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new_common_emoji.sort(reverse=True)
|
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try:
|
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with open(common_emoji_filename, 'w+',
|
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encoding='utf-8') as fp_emoji:
|
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for line in new_common_emoji:
|
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fp_emoji.write(line + '\n')
|
||
except OSError:
|
||
print('EX: error writing common emoji 1')
|
||
return
|
||
else:
|
||
line = str(1).zfill(16) + ' ' + emoji_content + '\n'
|
||
try:
|
||
with open(common_emoji_filename, 'w+',
|
||
encoding='utf-8') as fp_emoji:
|
||
fp_emoji.write(line)
|
||
except OSError:
|
||
print('EX: error writing common emoji 2')
|
||
return
|
||
|
||
|
||
def replace_emoji_from_tags(session, base_dir: str,
|
||
content: str, tag: [], message_type: str,
|
||
debug: bool, screen_readable: bool) -> str:
|
||
"""Uses the tags to replace :emoji: with html image markup
|
||
"""
|
||
for tag_item in tag:
|
||
if not tag_item.get('type'):
|
||
continue
|
||
if tag_item['type'] != 'Emoji':
|
||
continue
|
||
if not tag_item.get('name'):
|
||
continue
|
||
if not tag_item.get('icon'):
|
||
continue
|
||
if not tag_item['icon'].get('url'):
|
||
continue
|
||
if '/' not in tag_item['icon']['url']:
|
||
continue
|
||
if tag_item['name'] not in content:
|
||
continue
|
||
icon_name = tag_item['icon']['url'].split('/')[-1]
|
||
if icon_name:
|
||
if len(icon_name) > 1:
|
||
if icon_name[0].isdigit():
|
||
if '.' in icon_name:
|
||
icon_name = icon_name.split('.')[0]
|
||
# see https://unicode.org/
|
||
# emoji/charts/full-emoji-list.html
|
||
if '-' not in icon_name:
|
||
# a single code
|
||
replaced = False
|
||
try:
|
||
replace_char = chr(int("0x" + icon_name, 16))
|
||
if not screen_readable:
|
||
replace_char = \
|
||
'<span aria-hidden="true">' + \
|
||
replace_char + '</span>'
|
||
content = \
|
||
content.replace(tag_item['name'],
|
||
replace_char)
|
||
replaced = True
|
||
except BaseException:
|
||
if debug:
|
||
print('EX: replace_emoji_from_tags 1 ' +
|
||
'no conversion of ' +
|
||
str(icon_name) + ' to chr ' +
|
||
tag_item['name'] + ' ' +
|
||
tag_item['icon']['url'])
|
||
if not replaced:
|
||
_save_custom_emoji(session, base_dir,
|
||
tag_item['name'],
|
||
tag_item['icon']['url'],
|
||
debug)
|
||
_update_common_emoji(base_dir,
|
||
icon_name)
|
||
else:
|
||
_update_common_emoji(base_dir,
|
||
"0x" + icon_name)
|
||
else:
|
||
# sequence of codes
|
||
icon_codes = icon_name.split('-')
|
||
icon_code_sequence = ''
|
||
for icode in icon_codes:
|
||
replaced = False
|
||
try:
|
||
icon_code_sequence += chr(int("0x" +
|
||
icode, 16))
|
||
replaced = True
|
||
except BaseException:
|
||
icon_code_sequence = ''
|
||
if debug:
|
||
print('EX: ' +
|
||
'replace_emoji_from_tags 2 ' +
|
||
'no conversion of ' +
|
||
str(icode) + ' to chr ' +
|
||
tag_item['name'] + ' ' +
|
||
tag_item['icon']['url'])
|
||
if not replaced:
|
||
_save_custom_emoji(session, base_dir,
|
||
tag_item['name'],
|
||
tag_item['icon']['url'],
|
||
debug)
|
||
_update_common_emoji(base_dir,
|
||
icon_name)
|
||
else:
|
||
_update_common_emoji(base_dir,
|
||
"0x" + icon_name)
|
||
if icon_code_sequence:
|
||
if not screen_readable:
|
||
icon_code_sequence = \
|
||
'<span aria-hidden="true">' + \
|
||
icon_code_sequence + '</span>'
|
||
content = content.replace(tag_item['name'],
|
||
icon_code_sequence)
|
||
|
||
html_class = 'emoji'
|
||
if message_type == 'post header':
|
||
html_class = 'emojiheader'
|
||
if message_type == 'profile':
|
||
html_class = 'emojiprofile'
|
||
if screen_readable:
|
||
emoji_tag_name = tag_item['name'].replace(':', '')
|
||
else:
|
||
emoji_tag_name = ''
|
||
emoji_html = "<img src=\"" + tag_item['icon']['url'] + "\" alt=\"" + \
|
||
emoji_tag_name + \
|
||
"\" align=\"middle\" class=\"" + html_class + "\"/>"
|
||
content = content.replace(tag_item['name'], emoji_html)
|
||
return content
|
||
|
||
|
||
def _add_music_tag(content: str, tag: str) -> str:
|
||
"""If a music link is found then ensure that the post is
|
||
tagged appropriately
|
||
"""
|
||
if '#podcast' in content or '#documentary' in content:
|
||
return content
|
||
if '#' not in tag:
|
||
tag = '#' + tag
|
||
if tag in content:
|
||
return content
|
||
music_site_found = False
|
||
for site in MUSIC_SITES:
|
||
if site + '/' in content:
|
||
music_site_found = True
|
||
break
|
||
if not music_site_found:
|
||
return content
|
||
return ':music: ' + content + ' ' + tag + ' '
|
||
|
||
|
||
def _shorten_linked_urls(content: str) -> str:
|
||
"""If content comes with a web link included then make sure
|
||
that it is short enough
|
||
"""
|
||
if 'href=' not in content:
|
||
return content
|
||
if '>' not in content:
|
||
return content
|
||
if '<' not in content:
|
||
return content
|
||
sections = content.split('>')
|
||
ctr = 0
|
||
for section_text in sections:
|
||
if ctr == 0:
|
||
ctr += 1
|
||
continue
|
||
if '<' not in section_text:
|
||
ctr += 1
|
||
continue
|
||
section_text = section_text.split('<')[0]
|
||
if ' ' in section_text:
|
||
continue
|
||
if len(section_text) > MAX_LINK_LENGTH:
|
||
content = content.replace('>' + section_text + '<',
|
||
'>' +
|
||
section_text[:MAX_LINK_LENGTH-1] + '<')
|
||
ctr += 1
|
||
return content
|
||
|
||
|
||
def add_web_links(content: str) -> str:
|
||
"""Adds markup for web links
|
||
"""
|
||
content = _shorten_linked_urls(content)
|
||
|
||
if ':' not in content:
|
||
return content
|
||
|
||
prefixes = get_link_prefixes()
|
||
|
||
# do any of these prefixes exist within the content?
|
||
prefix_found = False
|
||
for prefix in prefixes:
|
||
if prefix in content:
|
||
prefix_found = True
|
||
break
|
||
|
||
# if there are no prefixes then just keep the content we have
|
||
if not prefix_found:
|
||
return content
|
||
|
||
content = content.replace('\r', '')
|
||
words = content.replace('\n', ' --linebreak-- ').split(' ')
|
||
replace_dict = {}
|
||
for wrd in words:
|
||
if ':' not in wrd:
|
||
continue
|
||
# does the word begin with a prefix?
|
||
prefix_found = False
|
||
for prefix in prefixes:
|
||
if wrd.startswith(prefix):
|
||
prefix_found = True
|
||
break
|
||
if not prefix_found:
|
||
continue
|
||
# the word contains a prefix
|
||
if wrd.endswith('.') or wrd.endswith(';'):
|
||
wrd = wrd[:-1]
|
||
markup = '<a href="' + wrd + '" tabindex="10" ' + \
|
||
'rel="nofollow noopener noreferrer" target="_blank">'
|
||
for prefix in prefixes:
|
||
if wrd.startswith(prefix):
|
||
markup += '<span class="invisible">' + prefix + '</span>'
|
||
break
|
||
link_text = wrd
|
||
for prefix in prefixes:
|
||
link_text = link_text.replace(prefix, '')
|
||
# prevent links from becoming too long
|
||
if len(link_text) > MAX_LINK_LENGTH:
|
||
markup += '<span class="ellipsis">' + \
|
||
link_text[:MAX_LINK_LENGTH] + '</span>'
|
||
markup += '<span class="invisible">' + \
|
||
link_text[MAX_LINK_LENGTH:] + '</span></a>'
|
||
else:
|
||
markup += '<span class="ellipsis">' + link_text + '</span></a>'
|
||
replace_dict[wrd] = markup
|
||
|
||
# do the replacements
|
||
for url, markup in replace_dict.items():
|
||
content = content.replace(url, markup)
|
||
|
||
# replace any line breaks
|
||
content = content.replace(' --linebreak-- ', '<br>')
|
||
|
||
return content
|
||
|
||
|
||
def safe_web_text(arbitrary_html: str) -> str:
|
||
"""Turns arbitrary html into something safe.
|
||
So if the arbitrary html contains attack scripts those will be removed
|
||
"""
|
||
# first remove the markup, so that we have something safe
|
||
safe_text = remove_html(arbitrary_html)
|
||
if not safe_text:
|
||
return ''
|
||
# remove any spurious characters found in podcast descriptions
|
||
remove_chars = ('Œ', 'â€', 'ğŸ', '<EFBFBD>', ']]', '__')
|
||
for remchar in remove_chars:
|
||
safe_text = safe_text.replace(remchar, '')
|
||
# recreate any url links safely
|
||
return add_web_links(safe_text)
|
||
|
||
|
||
def _add_hash_tags(word_str: str, http_prefix: str, domain: str,
|
||
replace_hashtags: {}, post_hashtags: {}) -> bool:
|
||
"""Detects hashtags and adds them to the replacements dict
|
||
Also updates the hashtags list to be added to the post
|
||
"""
|
||
if replace_hashtags.get(word_str):
|
||
return True
|
||
hashtag = word_str[1:]
|
||
if not valid_hash_tag(hashtag):
|
||
return False
|
||
hashtag_url = http_prefix + "://" + domain + "/tags/" + hashtag
|
||
post_hashtags[hashtag] = {
|
||
'href': hashtag_url,
|
||
'name': '#' + hashtag,
|
||
'type': 'Hashtag'
|
||
}
|
||
replace_hashtags[word_str] = "<a href=\"" + hashtag_url + \
|
||
"\" class=\"mention hashtag\" rel=\"tag\" tabindex=\"10\">#<span>" + \
|
||
hashtag + "</span></a>"
|
||
return True
|
||
|
||
|
||
def _add_emoji(base_dir: str, word_str: str,
|
||
http_prefix: str, domain: str,
|
||
replace_emoji: {}, post_tags: {},
|
||
emoji_dict: {}) -> bool:
|
||
"""Detects Emoji and adds them to the replacements dict
|
||
Also updates the tags list to be added to the post
|
||
"""
|
||
if not word_str.startswith(':'):
|
||
return False
|
||
if not word_str.endswith(':'):
|
||
return False
|
||
if len(word_str) < 3:
|
||
return False
|
||
if replace_emoji.get(word_str):
|
||
return True
|
||
# remove leading and trailing : characters
|
||
emoji = word_str[1:]
|
||
emoji = emoji[:-1]
|
||
# is the text of the emoji valid?
|
||
if not valid_hash_tag(emoji):
|
||
return False
|
||
if not emoji_dict.get(emoji):
|
||
return False
|
||
emoji_filename = base_dir + '/emoji/' + emoji_dict[emoji] + '.png'
|
||
if not os.path.isfile(emoji_filename):
|
||
emoji_filename = \
|
||
base_dir + '/emojicustom/' + emoji_dict[emoji] + '.png'
|
||
if not os.path.isfile(emoji_filename):
|
||
return False
|
||
emoji_url = http_prefix + "://" + domain + \
|
||
"/emoji/" + emoji_dict[emoji] + '.png'
|
||
post_tags[emoji] = {
|
||
'icon': {
|
||
'mediaType': 'image/png',
|
||
'type': 'Image',
|
||
'url': emoji_url
|
||
},
|
||
'name': ':' + emoji + ':',
|
||
"updated": file_last_modified(emoji_filename),
|
||
"id": emoji_url.replace('.png', ''),
|
||
'type': 'Emoji'
|
||
}
|
||
return True
|
||
|
||
|
||
def post_tag_exists(tagType: str, tagName: str, tags: {}) -> bool:
|
||
"""Returns true if a tag exists in the given dict
|
||
"""
|
||
for tag in tags:
|
||
if tag['name'] == tagName and tag['type'] == tagType:
|
||
return True
|
||
return False
|
||
|
||
|
||
def _add_mention(word_str: str, http_prefix: str, following: str,
|
||
petnames: str, replace_mentions: {},
|
||
recipients: [], tags: {}) -> bool:
|
||
"""Detects mentions and adds them to the replacements dict and
|
||
recipients list
|
||
"""
|
||
possible_handle = word_str[1:]
|
||
# @nick
|
||
if following and '@' not in possible_handle:
|
||
# fall back to a best effort match against the following list
|
||
# if no domain was specified. eg. @nick
|
||
possible_nickname = possible_handle
|
||
for follow in following:
|
||
if '@' not in follow:
|
||
continue
|
||
follow_nick = follow.split('@')[0]
|
||
if possible_nickname == follow_nick:
|
||
follow_str = remove_eol(follow)
|
||
replace_domain = follow_str.split('@')[1]
|
||
recipient_actor = http_prefix + "://" + \
|
||
replace_domain + "/@" + possible_nickname
|
||
if recipient_actor not in recipients:
|
||
recipients.append(recipient_actor)
|
||
tags[word_str] = {
|
||
'href': recipient_actor,
|
||
'name': word_str,
|
||
'type': 'Mention'
|
||
}
|
||
replace_mentions[word_str] = \
|
||
"<span class=\"h-card\"><a href=\"" + http_prefix + \
|
||
"://" + replace_domain + "/@" + possible_nickname + \
|
||
"\" tabindex=\"10\" class=\"u-url mention\">@<span>" + \
|
||
possible_nickname + "</span></a></span>"
|
||
return True
|
||
# try replacing petnames with mentions
|
||
follow_ctr = 0
|
||
for follow in following:
|
||
if '@' not in follow:
|
||
follow_ctr += 1
|
||
continue
|
||
pet = remove_eol(petnames[follow_ctr])
|
||
if pet:
|
||
if possible_nickname == pet:
|
||
follow_str = remove_eol(follow)
|
||
replace_nickname = follow_str.split('@')[0]
|
||
replace_domain = follow_str.split('@')[1]
|
||
recipient_actor = http_prefix + "://" + \
|
||
replace_domain + "/@" + replace_nickname
|
||
if recipient_actor not in recipients:
|
||
recipients.append(recipient_actor)
|
||
tags[word_str] = {
|
||
'href': recipient_actor,
|
||
'name': word_str,
|
||
'type': 'Mention'
|
||
}
|
||
replace_mentions[word_str] = \
|
||
"<span class=\"h-card\"><a href=\"" + http_prefix + \
|
||
"://" + replace_domain + "/@" + replace_nickname + \
|
||
"\" tabindex=\"10\" " + \
|
||
"class=\"u-url mention\">@<span>" + \
|
||
replace_nickname + "</span></a></span>"
|
||
return True
|
||
follow_ctr += 1
|
||
return False
|
||
possible_nickname = None
|
||
possible_domain = None
|
||
if '@' not in possible_handle:
|
||
return False
|
||
possible_nickname = possible_handle.split('@')[0]
|
||
if not possible_nickname:
|
||
return False
|
||
possible_domain = \
|
||
possible_handle.split('@')[1].strip('\n').strip('\r')
|
||
if not possible_domain:
|
||
return False
|
||
if following:
|
||
for follow in following:
|
||
if remove_eol(follow) != possible_handle:
|
||
continue
|
||
recipient_actor = http_prefix + "://" + \
|
||
possible_domain + "/@" + possible_nickname
|
||
if recipient_actor not in recipients:
|
||
recipients.append(recipient_actor)
|
||
tags[word_str] = {
|
||
'href': recipient_actor,
|
||
'name': word_str,
|
||
'type': 'Mention'
|
||
}
|
||
replace_mentions[word_str] = \
|
||
"<span class=\"h-card\"><a href=\"" + http_prefix + \
|
||
"://" + possible_domain + "/@" + possible_nickname + \
|
||
"\" tabindex=\"10\" class=\"u-url mention\">@<span>" + \
|
||
possible_nickname + "</span></a></span>"
|
||
return True
|
||
# @nick@domain
|
||
if not (possible_domain == 'localhost' or '.' in possible_domain):
|
||
return False
|
||
recipient_actor = http_prefix + "://" + \
|
||
possible_domain + "/@" + possible_nickname
|
||
if recipient_actor not in recipients:
|
||
recipients.append(recipient_actor)
|
||
tags[word_str] = {
|
||
'href': recipient_actor,
|
||
'name': word_str,
|
||
'type': 'Mention'
|
||
}
|
||
replace_mentions[word_str] = \
|
||
"<span class=\"h-card\"><a href=\"" + http_prefix + \
|
||
"://" + possible_domain + "/@" + possible_nickname + \
|
||
"\" tabindex=\"10\" class=\"u-url mention\">@<span>" + \
|
||
possible_nickname + "</span></a></span>"
|
||
return True
|
||
|
||
|
||
def replace_content_duplicates(content: str) -> str:
|
||
"""Replaces invalid duplicates within content
|
||
"""
|
||
if is_pgp_encrypted(content) or contains_pgp_public_key(content):
|
||
return content
|
||
while '<<' in content:
|
||
content = content.replace('<<', '<')
|
||
while '>>' in content:
|
||
content = content.replace('>>', '>')
|
||
content = content.replace('<\\p>', '')
|
||
return content
|
||
|
||
|
||
def remove_text_formatting(content: str, bold_reading: bool) -> str:
|
||
"""Removes markup for bold, italics, etc
|
||
"""
|
||
if is_pgp_encrypted(content) or contains_pgp_public_key(content):
|
||
return content
|
||
if '<' not in content:
|
||
return content
|
||
for markup in REMOVE_MARKUP:
|
||
if bold_reading:
|
||
if markup == 'b':
|
||
continue
|
||
content = content.replace('<' + markup + '>', '')
|
||
content = content.replace('</' + markup + '>', '')
|
||
content = content.replace('<' + markup.upper() + '>', '')
|
||
content = content.replace('</' + markup.upper() + '>', '')
|
||
return content
|
||
|
||
|
||
def remove_long_words(content: str, max_word_length: int,
|
||
long_words_list: []) -> str:
|
||
"""Breaks up long words so that on mobile screens this doesn't
|
||
disrupt the layout
|
||
"""
|
||
if is_pgp_encrypted(content) or contains_pgp_public_key(content):
|
||
return content
|
||
content = replace_content_duplicates(content)
|
||
if ' ' not in content:
|
||
# handle a single very long string with no spaces
|
||
content_str = content.replace('<p>', '').replace(r'<\p>', '')
|
||
if '://' not in content_str:
|
||
if len(content_str) > max_word_length:
|
||
if '<p>' in content:
|
||
content = '<p>' + content_str[:max_word_length] + r'<\p>'
|
||
else:
|
||
content = content[:max_word_length]
|
||
return content
|
||
content = content.replace('<p></p>', '<p> </p>')
|
||
words = content.split(' ')
|
||
if not long_words_list:
|
||
long_words_list = []
|
||
for word_str in words:
|
||
if len(word_str) > max_word_length:
|
||
if word_str not in long_words_list:
|
||
long_words_list.append(word_str)
|
||
for word_str in long_words_list:
|
||
if word_str.startswith('<p>'):
|
||
word_str = word_str.replace('<p>', '')
|
||
if word_str.startswith('<'):
|
||
continue
|
||
if len(word_str) == 76:
|
||
if word_str.upper() == word_str:
|
||
# tox address
|
||
continue
|
||
if '=\"' in word_str:
|
||
continue
|
||
if '@' in word_str:
|
||
if '@@' not in word_str:
|
||
continue
|
||
if '=.ed25519' in word_str:
|
||
continue
|
||
if '.onion' in word_str:
|
||
continue
|
||
if '.i2p' in word_str:
|
||
continue
|
||
if 'https:' in word_str:
|
||
continue
|
||
if 'http:' in word_str:
|
||
continue
|
||
if 'i2p:' in word_str:
|
||
continue
|
||
if 'gnunet:' in word_str:
|
||
continue
|
||
if 'dat:' in word_str:
|
||
continue
|
||
if 'rad:' in word_str:
|
||
continue
|
||
if 'hyper:' in word_str:
|
||
continue
|
||
if 'briar:' in word_str:
|
||
continue
|
||
if '<' in word_str:
|
||
replace_word = word_str.split('<', 1)[0]
|
||
# if len(replace_word) > max_word_length:
|
||
# replace_word = replace_word[:max_word_length]
|
||
content = content.replace(word_str, replace_word)
|
||
word_str = replace_word
|
||
if '/' in word_str:
|
||
continue
|
||
if len(word_str[max_word_length:]) < max_word_length:
|
||
content = content.replace(word_str,
|
||
word_str[:max_word_length] + '\n' +
|
||
word_str[max_word_length:])
|
||
else:
|
||
content = content.replace(word_str,
|
||
word_str[:max_word_length])
|
||
if content.startswith('<p>'):
|
||
if not content.endswith('</p>'):
|
||
content = content.strip() + '</p>'
|
||
content = content.replace('<p> </p>', '<p></p>')
|
||
return content
|
||
|
||
|
||
def _load_auto_tags(base_dir: str, nickname: str, domain: str) -> []:
|
||
"""Loads automatic tags file and returns a list containing
|
||
the lines of the file
|
||
"""
|
||
filename = acct_dir(base_dir, nickname, domain) + '/autotags.txt'
|
||
if not os.path.isfile(filename):
|
||
return []
|
||
try:
|
||
with open(filename, 'r', encoding='utf-8') as tags_file:
|
||
return tags_file.readlines()
|
||
except OSError:
|
||
print('EX: unable to read auto tags ' + filename)
|
||
return []
|
||
|
||
|
||
def _auto_tag(base_dir: str, nickname: str, domain: str,
|
||
word_str: str, auto_tag_list: [],
|
||
append_tags: []):
|
||
"""Generates a list of tags to be automatically appended to the content
|
||
"""
|
||
for tag_rule in auto_tag_list:
|
||
if word_str not in tag_rule:
|
||
continue
|
||
if '->' not in tag_rule:
|
||
continue
|
||
rulematch = tag_rule.split('->')[0].strip()
|
||
if rulematch != word_str:
|
||
continue
|
||
tag_name = tag_rule.split('->')[1].strip()
|
||
if tag_name.startswith('#'):
|
||
if tag_name not in append_tags:
|
||
append_tags.append(tag_name)
|
||
else:
|
||
if '#' + tag_name not in append_tags:
|
||
append_tags.append('#' + tag_name)
|
||
|
||
|
||
def add_html_tags(base_dir: str, http_prefix: str,
|
||
nickname: str, domain: str, content: str,
|
||
recipients: [], hashtags: {},
|
||
is_json_content: bool = False) -> str:
|
||
""" Replaces plaintext mentions such as @nick@domain into html
|
||
by matching against known following accounts
|
||
"""
|
||
if content.startswith('<p>'):
|
||
content = html_replace_email_quote(content)
|
||
return html_replace_quote_marks(content)
|
||
max_word_length = 40
|
||
content = content.replace('\r', '')
|
||
content = content.replace('\n', ' --linebreak-- ')
|
||
content = _add_music_tag(content, 'nowplaying')
|
||
content_simplified = \
|
||
content.replace(',', ' ').replace(';', ' ').replace('- ', ' ')
|
||
content_simplified = content_simplified.replace('. ', ' ').strip()
|
||
if content_simplified.endswith('.'):
|
||
content_simplified = content_simplified[:len(content_simplified)-1]
|
||
words = content_simplified.split(' ')
|
||
|
||
# remove . for words which are not mentions
|
||
new_words = []
|
||
for word_index in range(0, len(words)):
|
||
word_str = words[word_index]
|
||
if word_str.endswith('.'):
|
||
if not word_str.startswith('@'):
|
||
word_str = word_str[:-1]
|
||
if word_str.startswith('.'):
|
||
word_str = word_str[1:]
|
||
new_words.append(word_str)
|
||
words = new_words
|
||
|
||
replace_mentions = {}
|
||
replace_hashtags = {}
|
||
replace_emoji = {}
|
||
emoji_dict = {}
|
||
original_domain = domain
|
||
domain = remove_domain_port(domain)
|
||
following_filename = \
|
||
acct_dir(base_dir, nickname, domain) + '/following.txt'
|
||
|
||
# read the following list so that we can detect just @nick
|
||
# in addition to @nick@domain
|
||
following = None
|
||
petnames = None
|
||
if '@' in words:
|
||
if os.path.isfile(following_filename):
|
||
following = []
|
||
try:
|
||
with open(following_filename, 'r',
|
||
encoding='utf-8') as foll_file:
|
||
following = foll_file.readlines()
|
||
except OSError:
|
||
print('EX: unable to read ' + following_filename)
|
||
for handle in following:
|
||
pet = get_pet_name(base_dir, nickname, domain, handle)
|
||
if pet:
|
||
petnames.append(pet + '\n')
|
||
|
||
# extract mentions and tags from words
|
||
long_words_list = []
|
||
prev_word_str = ''
|
||
auto_tags_list = _load_auto_tags(base_dir, nickname, domain)
|
||
append_tags = []
|
||
for word_str in words:
|
||
word_len = len(word_str)
|
||
if word_len > 2:
|
||
if word_len > max_word_length:
|
||
long_words_list.append(word_str)
|
||
first_char = word_str[0]
|
||
if first_char == '@':
|
||
if _add_mention(word_str, http_prefix, following, petnames,
|
||
replace_mentions, recipients, hashtags):
|
||
prev_word_str = ''
|
||
continue
|
||
elif first_char == '#':
|
||
# remove any endings from the hashtag
|
||
hash_tag_endings = ('.', ':', ';', '-', '\n')
|
||
for ending in hash_tag_endings:
|
||
if word_str.endswith(ending):
|
||
word_str = word_str[:len(word_str) - 1]
|
||
break
|
||
|
||
if _add_hash_tags(word_str, http_prefix, original_domain,
|
||
replace_hashtags, hashtags):
|
||
prev_word_str = ''
|
||
continue
|
||
elif ':' in word_str:
|
||
word_str2 = word_str.split(':')[1]
|
||
# print('TAG: emoji located - ' + word_str)
|
||
if not emoji_dict:
|
||
# emoji.json is generated so that it can be customized and
|
||
# the changes will be retained even if default_emoji.json
|
||
# is subsequently updated
|
||
if not os.path.isfile(base_dir + '/emoji/emoji.json'):
|
||
copyfile(base_dir + '/emoji/default_emoji.json',
|
||
base_dir + '/emoji/emoji.json')
|
||
emoji_dict = load_json(base_dir + '/emoji/emoji.json')
|
||
|
||
# append custom emoji to the dict
|
||
custom_emoji_filename = base_dir + '/emojicustom/emoji.json'
|
||
if os.path.isfile(custom_emoji_filename):
|
||
custom_emoji_dict = load_json(custom_emoji_filename)
|
||
if custom_emoji_dict:
|
||
# combine emoji dicts one by one
|
||
for ename, eitem in custom_emoji_dict.items():
|
||
if ename and eitem:
|
||
if not emoji_dict.get(ename):
|
||
emoji_dict[ename] = eitem
|
||
|
||
# print('TAG: looking up emoji for :' + word_str2 + ':')
|
||
_add_emoji(base_dir, ':' + word_str2 + ':', http_prefix,
|
||
original_domain, replace_emoji, hashtags,
|
||
emoji_dict)
|
||
else:
|
||
if _auto_tag(base_dir, nickname, domain, word_str,
|
||
auto_tags_list, append_tags):
|
||
prev_word_str = ''
|
||
continue
|
||
if prev_word_str:
|
||
if _auto_tag(base_dir, nickname, domain,
|
||
prev_word_str + ' ' + word_str,
|
||
auto_tags_list, append_tags):
|
||
prev_word_str = ''
|
||
continue
|
||
prev_word_str = word_str
|
||
|
||
# add any auto generated tags
|
||
for appended in append_tags:
|
||
content = content + ' ' + appended
|
||
_add_hash_tags(appended, http_prefix, original_domain,
|
||
replace_hashtags, hashtags)
|
||
|
||
# replace words with their html versions
|
||
for word_str, replace_str in replace_mentions.items():
|
||
content = content.replace(word_str, replace_str)
|
||
for word_str, replace_str in replace_hashtags.items():
|
||
content = content.replace(word_str, replace_str)
|
||
if not is_json_content:
|
||
for word_str, replace_str in replace_emoji.items():
|
||
content = content.replace(word_str, replace_str)
|
||
|
||
content = add_web_links(content)
|
||
if long_words_list:
|
||
content = remove_long_words(content, max_word_length, long_words_list)
|
||
content = limit_repeated_words(content, 6)
|
||
content = content.replace(' --linebreak-- ', '</p><p>')
|
||
content = html_replace_email_quote(content)
|
||
return '<p>' + html_replace_quote_marks(content) + '</p>'
|
||
|
||
|
||
def get_mentions_from_html(html_text: str, match_str: str) -> []:
|
||
"""Extracts mentioned actors from the given html content string
|
||
"""
|
||
mentions = []
|
||
if match_str not in html_text:
|
||
return mentions
|
||
mentions_list = html_text.split(match_str)
|
||
for mention_str in mentions_list:
|
||
if '"' not in mention_str:
|
||
continue
|
||
actor_str = mention_str.split('"')[0]
|
||
if actor_str.startswith('http') or \
|
||
actor_str.startswith('gnunet') or \
|
||
actor_str.startswith('i2p') or \
|
||
actor_str.startswith('ipfs') or \
|
||
actor_str.startswith('ipns') or \
|
||
actor_str.startswith('hyper') or \
|
||
actor_str.startswith('dat:'):
|
||
if actor_str not in mentions:
|
||
mentions.append(actor_str)
|
||
return mentions
|
||
|
||
|
||
def extract_media_in_form_post(post_bytes, boundary, name: str):
|
||
"""Extracts the binary encoding for image/video/audio within a http
|
||
form POST
|
||
Returns the media bytes and the remaining bytes
|
||
"""
|
||
image_start_boundary = b'Content-Disposition: form-data; name="' + \
|
||
name.encode('utf8', 'ignore') + b'";'
|
||
image_start_location = post_bytes.find(image_start_boundary)
|
||
if image_start_location == -1:
|
||
return None, post_bytes
|
||
|
||
# bytes after the start boundary appears
|
||
media_bytes = post_bytes[image_start_location:]
|
||
|
||
# look for the next boundary
|
||
image_end_boundary = boundary.encode('utf8', 'ignore')
|
||
image_end_location = media_bytes.find(image_end_boundary)
|
||
if image_end_location == -1:
|
||
# no ending boundary
|
||
return media_bytes, post_bytes[:image_start_location]
|
||
|
||
# remaining bytes after the end of the image
|
||
remainder = media_bytes[image_end_location:]
|
||
|
||
# remove bytes after the end boundary
|
||
media_bytes = media_bytes[:image_end_location]
|
||
|
||
# return the media and the before+after bytes
|
||
return media_bytes, post_bytes[:image_start_location] + remainder
|
||
|
||
|
||
def save_media_in_form_post(media_bytes, debug: bool,
|
||
filename_base: str = None) -> (str, str):
|
||
"""Saves the given media bytes extracted from http form POST
|
||
Returns the filename and attachment type
|
||
"""
|
||
if not media_bytes:
|
||
if filename_base:
|
||
# remove any existing files
|
||
extension_types = get_image_extensions()
|
||
for ex in extension_types:
|
||
possible_other_format = filename_base + '.' + ex
|
||
if os.path.isfile(possible_other_format):
|
||
try:
|
||
os.remove(possible_other_format)
|
||
except OSError:
|
||
if debug:
|
||
print('EX: save_media_in_form_post ' +
|
||
'unable to delete other ' +
|
||
str(possible_other_format))
|
||
if os.path.isfile(filename_base):
|
||
try:
|
||
os.remove(filename_base)
|
||
except OSError:
|
||
if debug:
|
||
print('EX: save_media_in_form_post ' +
|
||
'unable to delete ' +
|
||
str(filename_base))
|
||
|
||
if debug:
|
||
print('DEBUG: No media found within POST')
|
||
return None, None
|
||
|
||
media_location = -1
|
||
search_str = ''
|
||
filename = None
|
||
|
||
# directly search the binary array for the beginning
|
||
# of an image
|
||
extension_list = {
|
||
'png': 'image/png',
|
||
'jpeg': 'image/jpeg',
|
||
'jxl': 'image/jxl',
|
||
'gif': 'image/gif',
|
||
'svg': 'image/svg+xml',
|
||
'webp': 'image/webp',
|
||
'avif': 'image/avif',
|
||
'mp4': 'video/mp4',
|
||
'ogv': 'video/ogv',
|
||
'mp3': 'audio/mpeg',
|
||
'ogg': 'audio/ogg',
|
||
'opus': 'audio/opus',
|
||
'flac': 'audio/flac',
|
||
'zip': 'application/zip'
|
||
}
|
||
detected_extension = None
|
||
for extension, content_type in extension_list.items():
|
||
search_str = b'Content-Type: ' + content_type.encode('utf8', 'ignore')
|
||
media_location = media_bytes.find(search_str)
|
||
if media_location > -1:
|
||
# image/video/audio binaries
|
||
if extension == 'jpeg':
|
||
extension = 'jpg'
|
||
elif extension == 'mpeg':
|
||
extension = 'mp3'
|
||
if filename_base:
|
||
filename = filename_base + '.' + extension
|
||
search_lst = search_str.decode().split('/', maxsplit=1)
|
||
attachment_media_type = \
|
||
search_lst[0].replace('Content-Type: ', '')
|
||
detected_extension = extension
|
||
break
|
||
|
||
if not filename:
|
||
return None, None
|
||
|
||
# locate the beginning of the image, after any
|
||
# carriage returns
|
||
start_pos = media_location + len(search_str)
|
||
for offset in range(1, 8):
|
||
if media_bytes[start_pos+offset] != 10:
|
||
if media_bytes[start_pos+offset] != 13:
|
||
start_pos += offset
|
||
break
|
||
|
||
# remove any existing image files with a different format
|
||
if detected_extension != 'zip':
|
||
extension_types = get_image_extensions()
|
||
for ex in extension_types:
|
||
if ex == detected_extension:
|
||
continue
|
||
possible_other_format = \
|
||
filename.replace('.temp', '').replace('.' +
|
||
detected_extension, '.' +
|
||
ex)
|
||
if os.path.isfile(possible_other_format):
|
||
try:
|
||
os.remove(possible_other_format)
|
||
except OSError:
|
||
if debug:
|
||
print('EX: save_media_in_form_post ' +
|
||
'unable to delete other 2 ' +
|
||
str(possible_other_format))
|
||
|
||
# don't allow scripts within svg files
|
||
if detected_extension == 'svg':
|
||
svg_str = media_bytes[start_pos:]
|
||
svg_str = svg_str.decode()
|
||
if dangerous_svg(svg_str, False):
|
||
return None, None
|
||
|
||
try:
|
||
with open(filename, 'wb') as fp_media:
|
||
fp_media.write(media_bytes[start_pos:])
|
||
except OSError:
|
||
print('EX: unable to write media')
|
||
|
||
if not os.path.isfile(filename):
|
||
print('WARN: Media file could not be written to file: ' + filename)
|
||
return None, None
|
||
print('Uploaded media file written: ' + filename)
|
||
|
||
return filename, attachment_media_type
|
||
|
||
|
||
def extract_text_fields_in_post(post_bytes, boundary: str, debug: bool,
|
||
unit_test_data: str = None) -> {}:
|
||
"""Returns a dictionary containing the text fields of a http form POST
|
||
The boundary argument comes from the http header
|
||
"""
|
||
if not unit_test_data:
|
||
msg_bytes = email.parser.BytesParser().parsebytes(post_bytes)
|
||
message_fields = msg_bytes.get_payload(decode=True).decode('utf-8')
|
||
else:
|
||
message_fields = unit_test_data
|
||
|
||
if debug:
|
||
print('DEBUG: POST arriving ' + message_fields)
|
||
|
||
message_fields = message_fields.split(boundary)
|
||
fields = {}
|
||
fields_with_semicolon_allowed = (
|
||
'message', 'bio', 'autoCW', 'password', 'passwordconfirm',
|
||
'instanceDescription', 'instanceDescriptionShort',
|
||
'subject', 'location', 'imageDescription'
|
||
)
|
||
# examine each section of the POST, separated by the boundary
|
||
for fld in message_fields:
|
||
if fld == '--':
|
||
continue
|
||
if ' name="' not in fld:
|
||
continue
|
||
post_str = fld.split(' name="', 1)[1]
|
||
if '"' not in post_str:
|
||
continue
|
||
post_key = post_str.split('"', 1)[0]
|
||
post_value_str = post_str.split('"', 1)[1]
|
||
if ';' in post_value_str:
|
||
if post_key not in fields_with_semicolon_allowed and \
|
||
not post_key.startswith('edited'):
|
||
continue
|
||
if '\r\n' not in post_value_str:
|
||
continue
|
||
post_lines = post_value_str.split('\r\n')
|
||
post_value = ''
|
||
if len(post_lines) > 2:
|
||
for line in range(2, len(post_lines)-1):
|
||
if line > 2:
|
||
post_value += '\n'
|
||
post_value += post_lines[line]
|
||
fields[post_key] = urllib.parse.unquote(post_value)
|
||
return fields
|
||
|
||
|
||
def limit_repeated_words(text: str, max_repeats: int) -> str:
|
||
"""Removes words which are repeated many times
|
||
"""
|
||
words = text.replace('\n', ' ').split(' ')
|
||
repeat_ctr = 0
|
||
repeated_text = ''
|
||
replacements = {}
|
||
prev_word = ''
|
||
for word in words:
|
||
if word == prev_word:
|
||
repeat_ctr += 1
|
||
if repeated_text:
|
||
repeated_text += ' ' + word
|
||
else:
|
||
repeated_text = word + ' ' + word
|
||
else:
|
||
if repeat_ctr > max_repeats:
|
||
new_text = ((prev_word + ' ') * max_repeats).strip()
|
||
replacements[prev_word] = [repeated_text, new_text]
|
||
repeat_ctr = 0
|
||
repeated_text = ''
|
||
prev_word = word
|
||
|
||
if repeat_ctr > max_repeats:
|
||
new_text = ((prev_word + ' ') * max_repeats).strip()
|
||
replacements[prev_word] = [repeated_text, new_text]
|
||
|
||
for word, item in replacements.items():
|
||
text = text.replace(item[0], item[1])
|
||
return text
|
||
|
||
|
||
def get_price_from_string(priceStr: str) -> (str, str):
|
||
"""Returns the item price and currency
|
||
"""
|
||
currencies = get_currencies()
|
||
for symbol, name in currencies.items():
|
||
if symbol in priceStr:
|
||
price = priceStr.replace(symbol, '')
|
||
if is_float(price):
|
||
return price, name
|
||
elif name in priceStr:
|
||
price = priceStr.replace(name, '')
|
||
if is_float(price):
|
||
return price, name
|
||
if is_float(priceStr):
|
||
return priceStr, "EUR"
|
||
return "0.00", "EUR"
|
||
|
||
|
||
def _words_similarity_histogram(words: []) -> {}:
|
||
"""Returns a histogram for word combinations
|
||
"""
|
||
histogram = {}
|
||
for index in range(1, len(words)):
|
||
combined_words = words[index - 1] + words[index]
|
||
if histogram.get(combined_words):
|
||
histogram[combined_words] += 1
|
||
else:
|
||
histogram[combined_words] = 1
|
||
return histogram
|
||
|
||
|
||
def _words_similarity_words_list(content: str) -> []:
|
||
"""Returns a list of words for the given content
|
||
"""
|
||
remove_punctuation = ('.', ',', ';', '-', ':', '"')
|
||
content = remove_html(content).lower()
|
||
for punc in remove_punctuation:
|
||
content = content.replace(punc, ' ')
|
||
content = content.replace(' ', ' ')
|
||
return content.split(' ')
|
||
|
||
|
||
def words_similarity(content1: str, content2: str, min_words: int) -> int:
|
||
"""Returns percentage similarity
|
||
"""
|
||
if content1 == content2:
|
||
return 100
|
||
|
||
words1 = _words_similarity_words_list(content1)
|
||
if len(words1) < min_words:
|
||
return 0
|
||
|
||
words2 = _words_similarity_words_list(content2)
|
||
if len(words2) < min_words:
|
||
return 0
|
||
|
||
histogram1 = _words_similarity_histogram(words1)
|
||
histogram2 = _words_similarity_histogram(words2)
|
||
|
||
diff = 0
|
||
for combined_words, _ in histogram1.items():
|
||
if not histogram2.get(combined_words):
|
||
diff += 1
|
||
else:
|
||
diff += \
|
||
abs(histogram2[combined_words] - histogram1[combined_words])
|
||
return 100 - int(diff * 100 / len(histogram1.items()))
|
||
|
||
|
||
def contains_invalid_local_links(content: str) -> bool:
|
||
"""Returns true if the given content has invalid links
|
||
"""
|
||
for inv_str in INVALID_CONTENT_STRINGS:
|
||
if '?' + inv_str + '=' in content:
|
||
return True
|
||
return False
|
||
|
||
|
||
def bold_reading_string(text: str) -> str:
|
||
"""Returns bold reading formatted text
|
||
"""
|
||
text = html.unescape(text)
|
||
add_paragraph_markup = False
|
||
if '<p>' in text:
|
||
text = text.replace('</p>', '\n').replace('<p>', '')
|
||
add_paragraph_markup = True
|
||
paragraphs = text.split('\n')
|
||
parag_ctr = 0
|
||
new_text = ''
|
||
for parag in paragraphs:
|
||
words = parag.split(' ')
|
||
new_parag = ''
|
||
reading_markup = False
|
||
for wrd in words:
|
||
if '<' in wrd:
|
||
reading_markup = True
|
||
if reading_markup and '>' in wrd:
|
||
reading_markup = False
|
||
wrd_len = len(wrd)
|
||
if not reading_markup and wrd_len > 1 and \
|
||
'<' not in wrd and '>' not in wrd and \
|
||
'&' not in wrd and '=' not in wrd and \
|
||
not wrd.startswith(':'):
|
||
|
||
prefix = ''
|
||
postfix = ''
|
||
if wrd.startswith('"'):
|
||
prefix = '"'
|
||
wrd = wrd[1:]
|
||
if wrd.endswith('"'):
|
||
postfix = '"'
|
||
wrd = wrd[:wrd_len - 1]
|
||
|
||
initial_chars = int(math.ceil(wrd_len / 2.0))
|
||
new_parag += \
|
||
prefix + '<b>' + wrd[:initial_chars] + '</b>' + \
|
||
wrd[initial_chars:] + postfix + ' '
|
||
else:
|
||
new_parag += wrd + ' '
|
||
parag_ctr += 1
|
||
new_parag = new_parag.strip()
|
||
if not new_parag:
|
||
continue
|
||
if parag_ctr < len(paragraphs):
|
||
if not add_paragraph_markup:
|
||
new_text += new_parag + '\n'
|
||
else:
|
||
new_text += '<p>' + new_parag + '</p>'
|
||
else:
|
||
if not add_paragraph_markup:
|
||
new_text += new_parag
|
||
else:
|
||
new_text += '<p>' + new_parag + '</p>'
|
||
|
||
return new_text
|
||
|
||
|
||
def import_emoji(base_dir: str, import_filename: str, session) -> None:
|
||
"""Imports emoji from the given filename
|
||
Each line should be [emoji url], :emojiname:
|
||
"""
|
||
if not os.path.isfile(import_filename):
|
||
return
|
||
emoji_dict = load_json(base_dir + '/emoji/default_emoji.json', 0, 1)
|
||
added = 0
|
||
with open(import_filename, "r", encoding='utf-8') as fp_emoji:
|
||
lines = fp_emoji.readlines()
|
||
for line in lines:
|
||
url = line.split(', ')[0]
|
||
tag = line.split(', ')[1].strip()
|
||
tag = tag.split(':')[1]
|
||
if emoji_dict.get(tag):
|
||
continue
|
||
emoji_image_filename = base_dir + '/emoji/' + tag + '.png'
|
||
if os.path.isfile(emoji_image_filename):
|
||
continue
|
||
if download_image(session, url,
|
||
emoji_image_filename, True, False):
|
||
emoji_dict[tag] = tag
|
||
added += 1
|
||
save_json(emoji_dict, base_dir + '/emoji/default_emoji.json')
|
||
print(str(added) + ' custom emoji added')
|
||
|
||
|
||
def content_diff(content: str, prev_content: str) -> str:
|
||
"""Returns a diff for the given content
|
||
"""
|
||
cdiff = difflib.Differ()
|
||
text1_lines = content.splitlines()
|
||
text1_sentences = []
|
||
for line in text1_lines:
|
||
sentences = line.split('.')
|
||
for sentence in sentences:
|
||
text1_sentences.append(sentence.strip())
|
||
|
||
text2_lines = prev_content.splitlines()
|
||
text2_sentences = []
|
||
for line in text2_lines:
|
||
sentences = line.split('.')
|
||
for sentence in sentences:
|
||
text2_sentences.append(sentence.strip())
|
||
|
||
diff = cdiff.compare(text1_sentences, text2_sentences)
|
||
|
||
diff_text = ''
|
||
for line in diff:
|
||
if line.startswith('- '):
|
||
if not diff_text:
|
||
diff_text = '<p>'
|
||
else:
|
||
diff_text += '<br>'
|
||
diff_text += '<label class="diff_add">+ ' + line[2:] + '</label>'
|
||
elif line.startswith('+ '):
|
||
if not diff_text:
|
||
diff_text = '<p>'
|
||
else:
|
||
diff_text += '<br>'
|
||
diff_text += \
|
||
'<label class="diff_remove">- ' + line[2:] + '</label>'
|
||
if diff_text:
|
||
diff_text += '</p>'
|
||
return diff_text
|
||
|
||
|
||
def create_edits_html(edits_json: {}, post_json_object: {},
|
||
translate: {}, timezone: str,
|
||
system_language: str) -> str:
|
||
""" Creates html showing historical edits made to a post
|
||
"""
|
||
if not edits_json:
|
||
return ''
|
||
if not has_object_dict(post_json_object):
|
||
return ''
|
||
if not post_json_object['object'].get('content'):
|
||
if not post_json_object['object'].get('contentMap'):
|
||
return ''
|
||
edit_dates_list = []
|
||
for modified, _ in edits_json.items():
|
||
edit_dates_list.append(modified)
|
||
edit_dates_list.sort(reverse=True)
|
||
edits_str = ''
|
||
content = None
|
||
if post_json_object['object'].get('contentMap'):
|
||
if post_json_object['object']['contentMap'].get(system_language):
|
||
content = \
|
||
post_json_object['object']['contentMap'][system_language]
|
||
if not content:
|
||
if post_json_object['object'].get('content'):
|
||
content = post_json_object['object']['content']
|
||
if not content:
|
||
return ''
|
||
content = remove_html(content)
|
||
for modified in edit_dates_list:
|
||
prev_json = edits_json[modified]
|
||
if not has_object_dict(prev_json):
|
||
continue
|
||
prev_content = None
|
||
if not prev_json['object'].get('content'):
|
||
if not prev_json['object'].get('contentMap'):
|
||
continue
|
||
if prev_json['object'].get('contentMap'):
|
||
if prev_json['object']['contentMap'].get(system_language):
|
||
prev_content = \
|
||
prev_json['object']['contentMap'][system_language]
|
||
if not prev_content:
|
||
if prev_json['object'].get('content'):
|
||
prev_content = prev_json['object']['content']
|
||
if not prev_content:
|
||
continue
|
||
prev_content = remove_html(prev_content)
|
||
if content == prev_content:
|
||
continue
|
||
diff = content_diff(content, prev_content)
|
||
if not diff:
|
||
continue
|
||
diff = diff.replace('\n', '</p><p>')
|
||
# convert to local time
|
||
datetime_object = parse(modified)
|
||
datetime_object = \
|
||
convert_published_to_local_timezone(datetime_object, timezone)
|
||
modified_str = datetime_object.strftime("%a %b %d, %H:%M")
|
||
diff = '<p><b>' + modified_str + '</b></p>' + diff
|
||
edits_str += diff
|
||
content = prev_content
|
||
if not edits_str:
|
||
return ''
|
||
return '<details><summary class="cw" tabindex="10">' + \
|
||
translate['SHOW EDITS'] + '</summary>' + \
|
||
edits_str + '</details>'
|
||
|
||
|
||
def remove_script(content: str, log_filename: str,
|
||
actor: str, url: str) -> str:
|
||
"""Removes <script> from some content
|
||
"""
|
||
separators = [['<', '>'], ['<', '>']]
|
||
for sep in separators:
|
||
prefix = sep[0] + 'script'
|
||
ending = '/script' + sep[1]
|
||
if prefix not in content:
|
||
continue
|
||
sections = content.split(prefix)
|
||
ctr = 0
|
||
for text in sections:
|
||
if ctr == 0:
|
||
ctr += 1
|
||
continue
|
||
if ending not in text:
|
||
if '/' + sep[1] not in text:
|
||
continue
|
||
if ending in text:
|
||
text = prefix + text.split(ending)[0] + ending
|
||
else:
|
||
text = prefix + text.split('/' + sep[1])[0] + '/' + sep[1]
|
||
if log_filename and actor:
|
||
# write the detected script to a log file
|
||
log_str = actor + ' ' + url + ' ' + text + '\n'
|
||
write_type = 'a+'
|
||
if os.path.isfile(log_filename):
|
||
write_type = 'w+'
|
||
try:
|
||
with open(log_filename, write_type,
|
||
encoding='utf-8') as fp_log:
|
||
fp_log.write(log_str)
|
||
except OSError:
|
||
print('EX: cannot append to svg script log')
|
||
content = content.replace(text, '')
|
||
return content
|