Tulir Asokan
89 lines
3.6 KiB
Python
89 lines
3.6 KiB
Python
# mautrix-telegram - A Matrix-Telegram puppeting bridge
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# Copyright (C) 2018 Tulir Asokan
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import re
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from html import escape, unescape
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from telethon.tl.types import *
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from . import user as u, puppet as p
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def telegram_to_matrix(text, entities):
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if not entities:
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return text
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html = []
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last_offset = 0
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for entity in entities:
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if entity.offset > last_offset:
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html.append(escape(text[last_offset:entity.offset]))
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elif entity.offset < last_offset:
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continue
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skip_entity = False
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entity_text = escape(text[entity.offset:entity.offset + entity.length])
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entity_type = type(entity)
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if entity_type == MessageEntityBold:
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html.append(f"<strong>{entity_text}</strong>")
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elif entity_type == MessageEntityItalic:
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html.append(f"<em>{entity_text}</em>")
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elif entity_type == MessageEntityCode:
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html.append(f"<code>{entity_text}</code>")
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elif entity_type == MessageEntityPre:
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if entity.language:
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html.append("<pre>"
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f"<code class='language-{entity.language}'>{entity_text}</code>"
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"</pre>")
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else:
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html.append(f"<pre><code>{entity_text}</code></pre>")
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elif entity_type == MessageEntityMention:
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username = entity_text[1:]
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user = u.User.find_by_username(username)
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if user:
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mxid = user.mxid
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else:
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puppet = p.Puppet.find_by_username(username)
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mxid = puppet.mxid if puppet else None
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if mxid:
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html.append(f"<a href='https://matrix.to/#/{mxid}'>{entity_text}</a>")
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else:
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skip_entity = True
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elif entity_type == MessageEntityMentionName:
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user = u.User.get_by_tgid(entity.user_id)
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if user:
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mxid = user.mxid
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else:
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puppet = p.Puppet.get(entity.user_id, create=False)
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mxid = puppet.mxid if puppet else None
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if mxid:
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html.append(f"<a href='https://matrix.to/#/{mxid}'>{entity_text}</a>")
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else:
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skip_entity = True
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elif entity_type == MessageEntityEmail:
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html.append(f"<a href='mailto:{entity_text}'>{entity_text}</a>")
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elif entity_type == MessageEntityUrl:
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html.append(f"<a href='{entity_text}'>{entity_text}</a>")
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elif entity_type == MessageEntityTextUrl:
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html.append(f"<a href='{escape(entity.url)}'>{entity_text}</a>")
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elif entity_type == MessageEntityBotCommand:
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html.append(f"<font color='blue'>!{entity_text[1:]}")
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elif entity_type == MessageEntityHashtag:
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html.append(f"<font color='blue'>{entity_text}</font>")
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else:
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skip_entity = True
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last_offset = entity.offset + (0 if skip_entity else entity.length)
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html.append(text[last_offset:])
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return "".join(html)
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