41 行
1.3 KiB
Python
41 行
1.3 KiB
Python
# SPDX-FileCopyrightText: 2022 n9k <https://git.076.ne.jp/ninya9k>
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# SPDX-License-Identifier: AGPL-3.0-or-later
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import hashlib
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from functools import lru_cache
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import markupsafe
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from quart import current_app, escape, url_for, Markup
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CONFIG = current_app.config
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EMOTES = current_app.emotes
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def generate_nonce_hash(nonce):
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parts = CONFIG['SECRET_KEY'] + b'nonce-hash\0' + nonce.encode()
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return hashlib.sha256(parts).hexdigest()
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def get_scrollback(messages):
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n = CONFIG['MAX_CHAT_SCROLLBACK']
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if len(messages) < n:
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return messages
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return list(messages)[-n:]
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@lru_cache
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def get_emote_markup(emote_name, emote_file, emote_width, emote_height):
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emote_name_markup = escape(emote_name)
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return Markup(
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f'''<img class="emote" '''
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f'''src="{escape(url_for('static', filename=emote_file))}" '''
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f'''width="{escape(emote_width)}" height="{escape(emote_height)}" '''
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f'''alt="{emote_name_markup}" title="{emote_name_markup}">'''
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)
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def insert_emotes(markup):
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assert isinstance(markup, markupsafe.Markup)
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for emote in EMOTES:
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emote_markup = get_emote_markup(
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emote['name'], emote['file'], emote['width'], emote['height'],
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)
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markup = emote['regex'].sub(emote_markup, markup)
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return Markup(markup)
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