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109 lines
3.2 KiB
Python
109 lines
3.2 KiB
Python
import json
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import re
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from typing import Any, Optional, Tuple
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from zerver.lib.message import SendMessageRequest
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from zerver.models import Message, SubMessage
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def get_widget_data(content: str) -> Tuple[Optional[str], Optional[str]]:
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valid_widget_types = ["poll", "todo"]
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tokens = content.split(" ")
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# tokens[0] will always exist
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if tokens[0].startswith("/"):
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widget_type = tokens[0][1:]
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if widget_type in valid_widget_types:
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remaining_content = content.replace(tokens[0], "", 1).strip()
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extra_data = get_extra_data_from_widget_type(remaining_content, widget_type)
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return widget_type, extra_data
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return None, None
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def get_extra_data_from_widget_type(content: str, widget_type: Optional[str]) -> Any:
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if widget_type == "poll":
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# This is used to extract the question from the poll command.
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# The command '/poll question' will pre-set the question in the poll
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lines = content.splitlines()
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question = ""
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options = []
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if lines and lines[0]:
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question = lines.pop(0).strip()
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for line in lines:
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# If someone is using the list syntax, we remove it
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# before adding an option.
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option = re.sub(r"(\s*[-*]?\s*)", "", line.strip(), 1)
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if len(option) > 0:
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options.append(option)
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extra_data = {
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"question": question,
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"options": options,
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}
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return extra_data
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return None
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def do_widget_post_save_actions(send_request: SendMessageRequest) -> None:
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"""
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This code works with the webapp; mobile and other
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clients should also start supporting this soon.
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"""
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message_content = send_request.message.content
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sender_id = send_request.message.sender_id
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message_id = send_request.message.id
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widget_type = None
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extra_data = None
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widget_type, extra_data = get_widget_data(message_content)
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widget_content = send_request.widget_content
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if widget_content is not None:
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# Note that we validate this data in check_message,
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# so we can trust it here.
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widget_type = widget_content["widget_type"]
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extra_data = widget_content["extra_data"]
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if widget_type:
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content = dict(
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widget_type=widget_type,
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extra_data=extra_data,
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)
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submessage = SubMessage(
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sender_id=sender_id,
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message_id=message_id,
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msg_type="widget",
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content=json.dumps(content),
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)
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submessage.save()
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send_request.submessages = SubMessage.get_raw_db_rows([message_id])
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def get_widget_type(*, message_id: int) -> Optional[str]:
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submessage = (
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SubMessage.objects.filter(
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message_id=message_id,
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msg_type="widget",
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)
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.only("content")
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.first()
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)
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if submessage is None:
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return None
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try:
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data = json.loads(submessage.content)
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except Exception:
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return None
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try:
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return data["widget_type"]
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except Exception:
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return None
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def is_widget_message(message: Message) -> bool:
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# Right now all messages that are widgetized use submessage, and vice versa.
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return message.submessage_set.exists()
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