Files
pytchat-fork/pytchat/tool/mining/parser.py
2020-06-17 23:56:07 +09:00

74 lines
2.2 KiB
Python

import re
from ... import config
from ... exceptions import (
ResponseContextError,
NoContents, NoContinuation)
logger = config.logger(__name__)
def parse(jsn):
"""
Parse replay chat data.
Parameter:
----------
jsn : dict
JSON of replay chat data.
Returns:
------
continuation : str
actions : list
"""
if jsn is None:
raise ValueError("parameter JSON is None")
if jsn['response']['responseContext'].get('errors'):
raise ResponseContextError(
'video_id is invalid or private/deleted.')
contents = jsn["response"].get('continuationContents')
if contents is None:
raise NoContents('No chat data.')
cont = contents['liveChatContinuation']['continuations'][0]
if cont is None:
raise NoContinuation('No Continuation')
metadata = cont.get('liveChatReplayContinuationData')
if metadata:
continuation = metadata.get("continuation")
actions = contents['liveChatContinuation'].get('actions')
if continuation:
return continuation, [action["replayChatItemAction"]["actions"][0]
for action in actions
if list(action['replayChatItemAction']["actions"][0].values()
)[0]['item'].get("liveChatPaidMessageRenderer")
or list(action['replayChatItemAction']["actions"][0].values()
)[0]['item'].get("liveChatPaidStickerRenderer")
]
return None, []
def get_offset(item):
return int(item['replayChatItemAction']["videoOffsetTimeMsec"])
def get_id(item):
return list((list(item['replayChatItemAction']["actions"][0].values()
)[0])['item'].values())[0].get('id')
def get_type(item):
return list((list(item['replayChatItemAction']["actions"][0].values()
)[0])['item'].keys())[0]
_REGEX_YTINIT = re.compile(
"window\\[\"ytInitialData\"\\]\\s*=\\s*({.+?});\\s+")
def extract(text):
match = re.findall(_REGEX_YTINIT, str(text))
if match:
return match[0]
return None