mirror of
https://github.com/LC044/WeChatMsg
synced 2024-11-15 22:41:20 +08:00
274 lines
8.6 KiB
Python
274 lines
8.6 KiB
Python
import html
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import xml.etree.ElementTree as ET
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import lz4.block
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import requests
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import re
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from urllib.parse import urlparse
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from bs4 import BeautifulSoup
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from app.util.protocbuf.msg_pb2 import MessageBytesExtra
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from ..util.file import get_file
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def decompress_CompressContent(data):
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"""
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解压缩Msg：CompressContent内容
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:param data:
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:return:
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"""
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if data is None or not isinstance(data, bytes):
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return ''
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try:
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dst = lz4.block.decompress(data, uncompressed_size=len(data) << 10)
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decoded_string = dst.decode().replace('\x00', '') # Remove any null characters
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except:
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print("Decompression failed: potentially corrupt input or insufficient buffer size.")
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return ''
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return decoded_string
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def escape_js_and_html(input_str):
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if not input_str:
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return ''
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# 转义HTML特殊字符
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html_escaped = html.escape(input_str, quote=False)
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# 手动处理JavaScript转义字符
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js_escaped = (
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html_escaped
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.replace("\\", "\\\\")
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.replace("'", r"\'")
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.replace('"', r'\"')
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.replace("\n", r'\n')
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.replace("\r", r'\r')
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.replace("\t", r'\t')
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)
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return js_escaped
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def parser_reply(data: bytes):
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xml_content = decompress_CompressContent(data)
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if not xml_content:
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return {
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'type': 57,
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'title': "发生错误",
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'refer': {
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'type': '1',
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'content': '引用错误',
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'displayname': '用户名',
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},
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"is_error": True
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}
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try:
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root = ET.XML(xml_content)
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appmsg = root.find('appmsg')
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msg_type = int(appmsg.find('type').text)
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title = appmsg.find('title').text
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refermsg_content = appmsg.find('refermsg').find('content').text
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refermsg_type = int(appmsg.find('refermsg').find('type').text)
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refermsg_displayname = appmsg.find('refermsg').find('displayname').text
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return {
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'type': msg_type,
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'title': title,
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'refer': None if refermsg_type != 1 else {
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'type': refermsg_type,
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'content': refermsg_content.lstrip("\n"),
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'displayname': refermsg_displayname,
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},
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"is_error": False
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}
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except:
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return {
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'type': 57,
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'title': "发生错误",
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'refer': {
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'type': '1',
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'content': '引用错误',
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'displayname': '用户名',
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},
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"is_error": True
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}
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def music_share(data: bytes):
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xml_content = decompress_CompressContent(data)
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if not xml_content:
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return {
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'type': 3,
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'title': "发生错误",
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"is_error": True
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}
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try:
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root = ET.XML(xml_content)
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appmsg = root.find('appmsg')
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msg_type = int(appmsg.find('type').text)
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title = appmsg.find('title').text
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if len(title) >= 39:
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title = title[:38] + '...'
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artist = appmsg.find('des').text
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link_url = appmsg.find('url').text # 链接地址
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audio_url = get_audio_url(appmsg.find('dataurl').text) # 播放地址
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website_name = get_website_name(link_url)
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return {
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'type': msg_type,
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'title': title,
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'artist': artist,
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'link_url': link_url,
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'audio_url': audio_url,
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'website_name': website_name,
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"is_error": False
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}
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except Exception as e:
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print(f"Music Share Error: {e}")
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return {
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'type': 3,
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'title': "发生错误",
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"is_error": True
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}
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def share_card(bytesExtra, compress_content_):
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xml = decompress_CompressContent(compress_content_)
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root = ET.XML(xml)
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appmsg = root.find('appmsg')
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title = appmsg.find('title').text
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try:
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des = appmsg.find('des').text
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except:
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des = ''
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url = appmsg.find('url').text
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appinfo = root.find('appinfo')
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show_display_name = appmsg.find('sourcedisplayname')
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sourceusername = appmsg.find('sourceusername')
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if show_display_name is not None:
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show_display_name = show_display_name.text
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else:
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if appinfo is not None:
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show_display_name = appinfo.find('appname').text
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msg_bytes = MessageBytesExtra()
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msg_bytes.ParseFromString(bytesExtra)
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app_logo = ''
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thumbnail = ''
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for tmp in msg_bytes.message2:
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if tmp.field1 == 3:
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thumbnail = tmp.field2
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thumbnail = "\\".join(thumbnail.split('\\')[1:])
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if tmp.field2 == 4:
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app_logo = tmp.field2
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app_logo = "\\".join(app_logo.split('\\')[1:])
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if sourceusername is not None:
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from app.DataBase import micro_msg_db # 放上面会导致循环依赖
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contact = micro_msg_db.get_contact_by_username(sourceusername.text)
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if contact:
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app_logo = contact[7]
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return {
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'title': escape_js_and_html(title),
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'description': escape_js_and_html(des),
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'url': url,
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'app_name': escape_js_and_html(show_display_name),
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'thumbnail': thumbnail,
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'app_logo': app_logo
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}
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def get_website_name(url):
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parsed_url = urlparse(url)
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domain = f"{parsed_url.scheme}://{parsed_url.netloc}"
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website_name = ''
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try:
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response = requests.get(domain, allow_redirects=False)
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if response.status_code == 200:
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soup = BeautifulSoup(response.content, 'html.parser')
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website_name = soup.title.string.strip()
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elif response.status_code == 302:
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domain = response.headers['Location']
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response = requests.get(domain, allow_redirects=False)
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soup = BeautifulSoup(response.content, 'html.parser')
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website_name = soup.title.string.strip()
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else:
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response = requests.get(url, allow_redirects=False)
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if response.status_code == 200:
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soup = BeautifulSoup(response.content, 'html.parser')
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website_name = soup.title.string.strip()
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index = website_name.find("-")
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if index != -1: # 如果找到了 "-"
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website_name = website_name[index + 1:].strip()
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except Exception as e:
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print(f"Get Website Info Error: {e}")
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return website_name
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def get_audio_url(url):
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path = ''
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try:
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response = requests.get(url, allow_redirects=False)
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# 检查响应状态码
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if response.status_code == 302:
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path = response.headers['Location']
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elif response.status_code == 200:
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print('音乐文件已失效,url:' + url)
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else:
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print('音乐文件地址获取失败,url:' + url + ',状态码' + str(response.status_code))
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except Exception as e:
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print(f"Get Audio Url Error: {e}")
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return path
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def file(bytes_extra, compress_content, output_path):
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xml_content = decompress_CompressContent(compress_content)
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if not xml_content:
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return {
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'type': 6,
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'title': "发生错误",
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"is_error": True
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}
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try:
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root = ET.XML(xml_content)
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appmsg = root.find('appmsg')
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msg_type = int(appmsg.find('type').text)
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file_name = appmsg.find('title').text
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pattern = r'[\\/:*?"<>|\r\n]+'
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file_name = re.sub(pattern, "_", file_name)
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appattach = appmsg.find('appattach')
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file_len = int(appattach.find('totallen').text)
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app_name = ''
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file_len = format_bytes(file_len)
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file_ext = appattach.find('fileext').text
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if root.find("appinfo") is not None:
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app_info = root.find('appinfo')
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app_name = app_info.find('appname').text
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if app_name is None:
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app_name = ''
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file_path = get_file(bytes_extra, file_name, output_path)
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return {
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'type': msg_type,
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'file_name': file_name,
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'file_len': file_len,
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'file_ext': file_ext,
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'file_path': file_path,
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'app_name': app_name,
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"is_error": False
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}
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except Exception as e:
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print(f"File Get Info Error: {e}")
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return {
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'type': 6,
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'title': "发生错误",
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"is_error": True
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}
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def format_bytes(size):
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units = ["B", "KB", "MB", "GB"]
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def convert_bytes(size, unit_index):
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if size < 1024 or unit_index >= len(units) - 1:
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return size, unit_index
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return convert_bytes(size / 1024, unit_index + 1)
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final_size, final_unit_index = convert_bytes(size, 0)
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return f"{final_size:.2f} {units[final_unit_index]}"
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