diff --git a/stdplugins/info.py b/stdplugins/info.py new file mode 100644 index 0000000..4cd2621 --- /dev/null +++ b/stdplugins/info.py @@ -0,0 +1,98 @@ +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +import string + +from telethon import events +from telethon.utils import add_surrogate +from telethon.tl.types import MessageEntityPre +from telethon.tl.tlobject import TLObject +import datetime + +PRINTABLE_SET = set(bytes(string.printable, 'ascii')) +STR_LEN_MAX = 256 +BYTE_LEN_MAX = 64 + + +def parse_pre(text): + text = text.strip() + return ( + text, + [MessageEntityPre(offset=0, length=len(add_surrogate(text)), language='potato')] + ) + + +def yaml_format(obj, indent=0): + """ + Pretty formats the given object as a YAML string which is returned. + (based on TLObject.pretty_format) + """ + result = [] + if isinstance(obj, TLObject): + obj = obj.to_dict() + + if isinstance(obj, dict): + result.append(obj.get('_', 'dict') + ':') + if obj: + items = obj.items() + has_multiple_items = len(items) > 2 + if has_multiple_items: + result.append('\n') + indent += 2 + for k, v in items: + if k == '_' or v is None: + continue + formatted = yaml_format(v, indent) + if not formatted.strip(): + continue + result.append(' ' * (indent if has_multiple_items else 1)) + result.append(f'{k}: {formatted}') + result.append('\n') + result.pop() + indent -= 2 + result.append(' ' * indent) + elif isinstance(obj, str): + # truncate long strings and display elipsis + result.append(repr(obj[:STR_LEN_MAX])) + if len(obj) > STR_LEN_MAX: + result.append('…') + elif isinstance(obj, bytes): + # repr() bytes if it's printable, hex like "FF EE BB" otherwise + if all(c in PRINTABLE_SET for c in obj): + result.append(repr(obj)) + else: + if len(obj) > BYTE_LEN_MAX: + result.append('<…>') + else: + result.append(' '.join(f'{b:02X}' for b in obj)) + elif isinstance(obj, datetime.datetime): + # ISO-8601 without timezone offset (telethon dates are always UTC) + result.append(obj.strftime('%Y-%m-%d %H:%M:%S')) + elif hasattr(obj, '__iter__'): + # display iterables one after another at the base indentation level + result.append('\n') + indent += 2 + for x in obj: + result.append(' ' * indent) + result.append(yaml_format(x, indent)) + result.append('\n') + result.pop() + indent -= 2 + result.append(' ' * indent) + else: + result.append(repr(obj)) + + return ''.join(result) + + +@borg.on(events.NewMessage(pattern=r"\.info", outgoing=True)) +async def _(event): + if not event.message.is_reply: + return + msg = await event.message.get_reply_message() + yaml_text = yaml_format(msg) + await event.edit( + yaml_text, + parse_mode=parse_pre + )