258 lines
8.7 KiB
Python
258 lines
8.7 KiB
Python
# -*- coding: utf-8 -*-#
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# -------------------------------------------------------------------------------
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# Name: parse.py
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# Description: 解析数据库内容
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# Author: xaoyaoo
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# Date: 2023/09/27
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# -------------------------------------------------------------------------------
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import os.path
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import sqlite3
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import pysilk
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from io import BytesIO
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import wave
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import pyaudio
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import requests
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import hashlib
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import lz4.block
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import blackboxprotobuf
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from PIL import Image
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# import xml.etree.ElementTree as ET
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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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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 parse_xml_string(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 read_img_dat(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 fomt, md5, out_bytes
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return 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 fomt, md5, out_bytes
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return False
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def read_emoji(cdnurl, is_show=False):
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headers = {
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"User-Agent": "Mozilla/5.0 (Linux; Android 10; Redmi K30 Pro) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Mobile Safari/537.36"
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}
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r1 = requests.get(cdnurl, headers=headers)
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rdata = r1.content
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if is_show: # 显示表情
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img = Image.open(BytesIO(rdata))
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img.show()
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return rdata
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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 None
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try:
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dst = lz4.block.decompress(data, uncompressed_size=len(data) << 8)
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dst = dst.replace(b'\x00', b'') # 已经解码完成后，还含有0x00的部分，要删掉，要不后面ET识别的时候会报错
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uncompressed_data = dst.decode('utf-8', errors='ignore')
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return uncompressed_data
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except Exception as e:
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return data.decode('utf-8', errors='ignore')
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def read_audio_buf(buf_data, is_play=False, is_wave=False, 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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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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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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return rdata
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return pcm_data
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def read_audio(MsgSvrID, is_play=False, is_wave=False, DB_PATH: str = "", rate=24000):
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if DB_PATH == "":
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return False
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DB = sqlite3.connect(DB_PATH)
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cursor = DB.cursor()
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sql = "select Buf from Media where Reserved0={}".format(MsgSvrID)
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DBdata = cursor.execute(sql).fetchall()
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if len(DBdata) == 0:
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return False
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data = DBdata[0][0] # [1:] + b'\xFF\xFF'
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pcm_data = read_audio_buf(data, is_play, is_wave, rate)
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return pcm_data
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def wordcloud_generator(text, out_path="", is_show=False, img_path="", font="C:\Windows\Fonts\simhei.ttf"):
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"""
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词云
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:param is_show: 是否显示
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:param img_path: 背景图片路径
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:param text: 文本
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:param font: 字体路径
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:return:
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"""
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try:
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from wordcloud import WordCloud
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import jieba
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import numpy as np
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import matplotlib.pyplot as plt
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from matplotlib.font_manager import fontManager
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except ImportError as e:
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print("error", e)
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raise ImportError("请安装wordcloud,jieba,numpy,matplotlib,pillow库")
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words = jieba.lcut(text) # 精确分词
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newtxt = ' '.join(words) # 空格拼接
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# 字体路径
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# 创建WordCloud对象
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wordcloud1 = WordCloud(width=800, height=400, background_color='white', font_path=font)
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wordcloud1.generate(newtxt)
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if out_path and out_path != "":
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wordcloud1.to_file("wordcloud.png") # 保存图片
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if img_path and os.path.exists(img_path): # 设置背景图片
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img_color = np.array(Image.open(img_path)) # 读取背景图片
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img_color = img_color.reshape((img_color.shape[0] * img_color.shape[1], 3))
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wordcloud1.recolor(color_func=img_color) # 设置背景图片颜色
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if is_show:
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# 显示词云
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wordcloud_img = wordcloud1.to_image()
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wordcloud_img.show()
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def read_BytesExtra(BytesExtra):
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if BytesExtra is None or not isinstance(BytesExtra, bytes):
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return None
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try:
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deserialize_data, message_type = blackboxprotobuf.decode_message(BytesExtra)
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return deserialize_data
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except Exception as e:
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return None |