367 lines
12 KiB
Python
367 lines
12 KiB
Python
# -*- coding: utf-8 -*-#
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# -------------------------------------------------------------------------------
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# Name: utils.py
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# Description:
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# Author: xaoyaoo
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# Date: 2024/04/15
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# -------------------------------------------------------------------------------
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import hashlib
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import os
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import re
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import time
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import wave
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import requests
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from io import BytesIO
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import pysilk
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import lxml.etree as ET # 这个模块更健壮些，微信XML格式有时有非标格式，会导致xml.etree.ElementTree处理失败
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from collections import defaultdict
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def type_converter(type_id_or_name: [str, tuple]):
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"""
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消息类型ID与名称转换
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名称(str)=>ID(tuple)
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ID(tuple)=>名称(str)
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:param type_id_or_name: 消息类型ID或名称
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:return: 消息类型ID或名称
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"""
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type_name_dict = defaultdict(lambda: "未知", {
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(1, 0): "文本",
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(3, 0): "图片",
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(34, 0): "语音",
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(37, 0): "添加好友",
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(42, 0): "推荐公众号",
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(43, 0): "视频",
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(47, 0): "动画表情",
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(48, 0): "位置",
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(49, 0): "文件",
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(49, 1): "粘贴的文本",
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(49, 3): "(分享)音乐",
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(49, 4): "(分享)卡片式链接",
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(49, 5): "(分享)卡片式链接",
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(49, 6): "文件",
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(49, 7): "游戏相关",
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(49, 8): "用户上传的GIF表情",
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(49, 15): "未知-49,15",
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(49, 17): "位置共享",
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(49, 19): "合并转发的聊天记录",
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(49, 24): "(分享)笔记",
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(49, 33): "(分享)小程序",
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(49, 36): "(分享)小程序",
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(49, 40): "(分享)收藏夹",
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(49, 44): "(分享)小说(猜)",
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(49, 50): "(分享)视频号名片",
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(49, 51): "(分享)视频号视频",
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(49, 53): "接龙",
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(49, 57): "引用回复",
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(49, 63): "视频号直播或直播回放",
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(49, 74): "文件(猜)",
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(49, 87): "群公告",
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(49, 88): "视频号直播或直播回放等",
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(49, 2000): "转账",
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(49, 2003): "赠送红包封面",
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(50, 0): "语音通话",
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(65, 0): "企业微信打招呼(猜)",
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(66, 0): "企业微信添加好友(猜)",
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(10000, 0): "系统通知",
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(10000, 1): "消息撤回1",
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(10000, 4): "拍一拍",
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(10000, 5): "消息撤回5",
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(10000, 6): "消息撤回6",
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(10000, 33): "消息撤回33",
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(10000, 36): "消息撤回36",
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(10000, 57): "消息撤回57",
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(10000, 8000): "邀请加群",
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(11000, 0): "未知-11000,0"
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})
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if isinstance(type_id_or_name, tuple):
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return type_name_dict[type_id_or_name]
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elif isinstance(type_id_or_name, str):
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return next((k for k, v in type_name_dict.items() if v == type_id_or_name), (0, 0))
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else:
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raise ValueError("Invalid input type")
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def typeid2name(type_id: tuple):
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"""
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获取消息类型名称
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:param type_id: 消息类型ID 元组 eg: (1, 0)
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:return:
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"""
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return type_converter(type_id)
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def name2typeid(type_name: str):
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"""
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获取消息类型ID
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:param type_name: 消息类型名称
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:return:
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"""
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return type_converter(type_name)
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def get_md5(data):
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md5 = hashlib.md5()
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md5.update(data)
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return md5.hexdigest()
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def timestamp2str(timestamp):
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"""
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时间戳转换为时间字符串
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:param timestamp: 时间戳
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:return: 时间字符串
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"""
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if isinstance(timestamp, str) and timestamp.isdigit():
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timestamp = int(timestamp)
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elif isinstance(timestamp, int) or isinstance(timestamp, float):
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pass
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else:
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return timestamp
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if len(str(timestamp)) == 13:
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timestamp = timestamp / 1000
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elif len(str(timestamp)) == 10:
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pass
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else:
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return timestamp
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return time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(timestamp))
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def dat2img(input_data):
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"""
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读取图片文件dat格式
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:param input_data: 图片文件路径或者图片文件数据
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:return: 图片格式，图片md5，图片数据
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"""
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# 常见图片格式的文件头
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img_head = {
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b"\xFF\xD8\xFF": ".jpg",
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b"\x89\x50\x4E\x47": ".png",
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b"\x47\x49\x46\x38": ".gif",
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b"\x42\x4D": ".BMP",
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b"\x49\x49": ".TIFF",
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b"\x4D\x4D": ".TIFF",
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b"\x00\x00\x01\x00": ".ICO",
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b"\x52\x49\x46\x46": ".WebP",
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b"\x00\x00\x00\x18\x66\x74\x79\x70\x68\x65\x69\x63": ".HEIC",
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}
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if isinstance(input_data, str):
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with open(input_data, "rb") as f:
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input_bytes = f.read()
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else:
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input_bytes = input_data
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try:
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import numpy as np
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input_bytes = np.frombuffer(input_bytes, dtype=np.uint8)
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for hcode in img_head: # 遍历文件头
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t = input_bytes[0] ^ hcode[0] # 异或解密
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if np.all(t == np.bitwise_xor(np.frombuffer(input_bytes[:len(hcode)], dtype=np.uint8),
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np.frombuffer(hcode, dtype=np.uint8))): # 使用NumPy进行向量化的异或解密操作，并进行类型转换
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fomt = img_head[hcode] # 获取文件格式
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out_bytes = np.bitwise_xor(input_bytes, t) # 使用NumPy进行向量化的异或解密操作
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md5 = get_md5(out_bytes)
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return True, fomt, md5, out_bytes
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return False, False, False, False
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except ImportError:
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pass
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for hcode in img_head:
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t = input_bytes[0] ^ hcode[0]
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for i in range(1, len(hcode)):
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if t == input_bytes[i] ^ hcode[i]:
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fomt = img_head[hcode]
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out_bytes = bytearray()
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for nowByte in input_bytes: # 读取文件
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newByte = nowByte ^ t # 异或解密
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out_bytes.append(newByte)
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md5 = get_md5(out_bytes)
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return True, fomt, md5, out_bytes
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return False, False, False, False
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def xml2dict(xml_string):
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"""
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解析 XML 字符串
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:param xml_string: 要解析的 XML 字符串
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:return: 解析结果，以字典形式返回
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"""
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def parse_xml(element):
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"""
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递归解析 XML 元素
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:param element: 要解析的 XML 元素
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:return: 解析结果，以字典形式返回
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"""
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result = {}
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# 解析当前元素的属性
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if element is None or element.attrib is None: # 有时可能会遇到没有属性，要处理下
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return result
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for key, value in element.attrib.items():
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result[key] = value
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# 解析当前元素的子元素
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for child in element:
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child_result = parse_xml(child)
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# 如果子元素的标签已经在结果中存在，则将其转换为列表
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if child.tag in result:
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if not isinstance(result[child.tag], list):
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result[child.tag] = [result[child.tag]]
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result[child.tag].append(child_result)
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else:
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result[child.tag] = child_result
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# 如果当前元素没有子元素，则将其文本内容作为值保存
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if not result and element.text:
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result = element.text
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return result
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if xml_string is None or not isinstance(xml_string, str):
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return None
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try:
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parser = ET.XMLParser(recover=True) # 有时微信的聊天记录里面，会冒出来xml格式不对的情况，这里把parser设置成忽略错误
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root = ET.fromstring(xml_string, parser)
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except Exception as e:
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return xml_string
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return parse_xml(root)
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def download_file(url, save_path=None):
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"""
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下载文件
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:param url: 文件下载地址
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:param save_path: 保存路径
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:return: 保存路径
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"""
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headers = {
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"User-Agent": "Mozilla/5.0 (Linux; Android 10; Redmi K40 Pro) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Mobile Safari/537.36"
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}
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r = requests.get(url, headers=headers)
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if r.status_code != 200:
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return None
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data = r.content
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if save_path and isinstance(save_path, str):
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# 创建文件夹
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if not os.path.exists(os.path.dirname(save_path)):
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os.makedirs(os.path.dirname(save_path))
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with open(save_path, "wb") as f:
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f.write(data)
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return data
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def bytes2str(d):
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"""
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遍历字典并将bytes转换为字符串
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:param d:
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:return:
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"""
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for k, v in d.items():
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if isinstance(v, dict):
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bytes2str(v)
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elif isinstance(v, list):
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for item in v:
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if isinstance(item, dict):
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bytes2str(item)
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elif isinstance(item, bytes):
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item = item.decode('utf-8') # 将bytes转换为字符串
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elif isinstance(v, bytes):
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d[k] = v.decode('utf-8')
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def read_dict_all_values(data):
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"""
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读取字典中所有的值（单层）
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:param dict_data: 字典
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:return: 所有值的list
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"""
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result = []
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if isinstance(data, list):
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for item in data:
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result.extend(read_dict_all_values(item))
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elif isinstance(data, dict):
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for key, value in data.items():
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result.extend(read_dict_all_values(value))
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else:
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if isinstance(data, bytes):
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tmp = data.decode("utf-8")
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else:
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tmp = str(data) if isinstance(data, int) else data
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result.append(tmp)
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for i in range(len(result)):
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if isinstance(result[i], bytes):
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result[i] = result[i].decode("utf-8")
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return result
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def match_BytesExtra(BytesExtra, pattern=r"FileStorage(.*?)'"):
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"""
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匹配 BytesExtra
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:param BytesExtra: BytesExtra
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:param pattern: 匹配模式
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:return:
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"""
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if not BytesExtra:
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return False
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BytesExtra = read_dict_all_values(BytesExtra)
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BytesExtra = "'" + "'".join(BytesExtra) + "'"
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# print(BytesExtra)
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match = re.search(pattern, BytesExtra)
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if match:
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video_path = match.group(0).replace("'", "")
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return video_path
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else:
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return ""
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def silk2audio(buf_data, is_play=False, is_wave=False, save_path=None, rate=24000):
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silk_file = BytesIO(buf_data) # 读取silk文件
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pcm_file = BytesIO() # 创建pcm文件
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pysilk.decode(silk_file, pcm_file, rate) # 解码silk文件->pcm文件
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pcm_data = pcm_file.getvalue() # 获取pcm文件数据
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silk_file.close() # 关闭silk文件
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pcm_file.close() # 关闭pcm文件
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if is_play: # 播放音频
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def play_audio(pcm_data, rate):
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try:
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import pyaudio
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except ImportError:
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raise ImportError("请先安装pyaudio库[ pip install pyaudio ]")
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p = pyaudio.PyAudio() # 实例化pyaudio
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stream = p.open(format=pyaudio.paInt16, channels=1, rate=rate, output=True) # 创建音频流对象
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stream.write(pcm_data) # 写入音频流
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stream.stop_stream() # 停止音频流
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stream.close() # 关闭音频流
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p.terminate() # 关闭pyaudio
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play_audio(pcm_data, rate)
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print(is_play, is_wave, save_path)
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if is_wave: # 转换为wav文件
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wave_file = BytesIO() # 创建wav文件
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with wave.open(wave_file, 'wb') as wf:
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wf.setparams((1, 2, rate, 0, 'NONE', 'NONE')) # 设置wav文件参数
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wf.writeframes(pcm_data) # 写入wav文件
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rdata = wave_file.getvalue() # 获取wav文件数据
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wave_file.close() # 关闭wav文件
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if save_path and isinstance(save_path, str):
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with open(save_path, "wb") as f:
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f.write(rdata)
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print('saved wav file')
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return rdata
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return pcm_data
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