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parser.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# File : parser.py
# Author: DaShenHan&道长-----先苦后甜，任凭晚风拂柳颜------
# Date : 2022/8/25
import os
import shutil
import requests
from flask import make_response, jsonify,render_template_string
from functools import partial # 这玩意儿能锁定一个函数的参数
import subprocess
subprocess.Popen = partial(subprocess.Popen, encoding="utf-8") # 固定写法
# 解决execjs执行js时产生的乱码报错，需要在导入该模块之前，让Popen的encoding参数锁定为utf-8
# import execjs
import js2py
from js2py.base import JsObjectWrapper,PyJsString,PyJsObject
# os.environ["EXECJS_RUNTIME"] = "JScript"
# print(execjs.get().name)
def runJScode(jscode,loader=None,ctx=None):
if loader is None:
if ctx is None:
ctx = {}
loader = js2py.EvalJs(ctx,enable_require=False) # enable_require启用require关键字,会自动获取系统nodejs环境
loader.execute(jscode)
return loader, jscode
def runJs(jsPath, before='', after='', ctx=None):
# base_path = os.path.dirname(os.path.abspath(__file__)) # 当前文件所在目录
# base_path = os.path.dirname(os.getcwd()) # 当前主程序所在工作目录
# base_path = os.path.dirname(os.path.abspath('.')) # 上级目录
# js_code = 'var rule={}'
if ctx is None:
ctx = {}
base_path = os.path.dirname(os.path.abspath(os.path.dirname(__file__))) # 上级目录
if str(jsPath).startswith('http'):
js_name = jsPath.split('/')[-1]
cache_path = os.path.join(base_path, f'cache/{js_name}')
if not os.path.exists(cache_path):
try:
print(f'开始缓存远程规则:{js_name},来源{jsPath}')
js_code = requests.get(url=jsPath,timeout=3).text
# js_code = requests.get(jsPath).text
with open(cache_path,mode='w+',encoding='utf-8') as f:
f.write(js_code)
except Exception as e:
print('发生了错误:',e)
return None, ''
else:
with open(cache_path, 'r', encoding='UTF-8') as fp:
js_code = fp.read()
else:
js_path = os.path.join(base_path, jsPath)
if not os.path.exists(js_path):
return None,''
js_name = jsPath.split('/')[-1]
cache_path = os.path.join(base_path, f'cache/{js_name}')
if not str(jsPath).startswith('js/') and not os.path.exists(cache_path) and os.path.exists(js_path):
shutil.copy(js_path,cache_path) # 本地txt目录的复制过去凑数,实际不使用
# print(js_path)
with open(js_path, 'r', encoding='UTF-8') as fp:
js_code = fp.read()
# print(js_code)
jscode_to_run = js_code
# print(jscode_to_run)
if before:
jscode_to_run = before + jscode_to_run
if after:
jscode_to_run += after
loader = js2py.EvalJs(ctx)
return runJScode(jscode_to_run,loader)
# loader = execjs.compile(jscode_to_run)
# print(jscode_to_run)
# loader.execute(jscode_to_run)
# return loader,js_code
def toJs(jsPath,jsRoot='cache',env=None):
base_path = os.path.dirname(os.path.abspath(os.path.dirname(__file__))) # 上级目录
js_path = os.path.join(base_path, f'{jsRoot}/{jsPath}')
# print(js_path)
if not os.path.exists(js_path):
return jsonify({'code': -2, 'msg': f'非法猥亵,文件不存在'})
with open(js_path, 'r', encoding='UTF-8') as fp:
js = fp.read()
if env:
# js = render_template_string(js,env=env)
for k in env:
# print(f'${k}', f'{env[k]}')
if f'${k}' in js:
js = js.replace(f'${k}', f'{env[k]}')
# js = render_template_string(js,**env)
response = make_response(js)
response.headers['Content-Type'] = 'text/javascript; charset=utf-8'
return response
def getJs(jsPath,jsRoot='cache'):
base_path = os.path.dirname(os.path.abspath(os.path.dirname(__file__))) # 上级目录
js_path = os.path.join(base_path, f'{jsRoot}/{jsPath}')
# print(js_path)
if not os.path.exists(js_path):
return ''
with open(js_path, 'r', encoding='UTF-8') as fp:
js = fp.read()
return js
def toHtml(jsPath):
base_path = os.path.dirname(os.path.abspath(os.path.dirname(__file__))) # 上级目录
js_path = os.path.join(base_path, f'cache/{jsPath}')
with open(js_path, 'r', encoding='UTF-8') as fp:
js = fp.read()
response = make_response(js)
response.headers['Content-Type'] = 'text/html; charset=utf-8'
return response
def runPy(pyPath):
# base_path = os.path.dirname(os.path.abspath(__file__)) # 当前文件所在目录
# base_path = os.path.dirname(os.getcwd()) # 当前主程序所在工作目录
# base_path = os.path.dirname(os.path.abspath('.')) # 上级目录
# js_code = 'var rule={}'
if pyPath and not str(pyPath).endswith('.py'):
pyPath += '.py'
base_path = os.path.dirname(os.path.abspath(os.path.dirname(__file__))) # 上级目录
if str(pyPath).startswith('http'):
py_name = pyPath.split('/')[-1]
cache_path = os.path.join(base_path, f'cache/{py_name}')
print('远程免嗅:',py_name)
if not os.path.exists(cache_path):
try:
py_code = requests.get(pyPath,timeout=2).text
with open(cache_path,mode='w+',encoding='utf-8') as f:
f.write(py_code)
except Exception as e:
print('发生了错误:',e)
return None
else:
with open(cache_path, 'r', encoding='UTF-8') as fp:
py_code = fp.read()
else:
py_root = os.path.join(base_path, 'py/')
os.makedirs(py_root,exist_ok=True)
py_path = os.path.join(py_root, pyPath)
if not os.path.exists(py_path):
return ''
with open(py_path, 'r', encoding='UTF-8') as fp:
py_code = fp.read()
# print(js_code)
return py_code
def covert_demo():
ctx = {'py_sum':sum,'requests':requests}
loader = js2py.EvalJs(ctx)
# loader.execute('var a=py_sum(2,3);function f(x) {return x*x} var b=[a,"5"];var c={"a":a};')
# loader.execute('var a=py_sum(2,3);function f(x) {return x*x}')
loader.execute('function f(x) {return x*x};var a=py_sum([2,3]);var b=[a,5];var c={"a":a};')
f = loader.f
print(f(8))
print(f.toString())
print(loader.eval('py_sum(new Array(1, 2, 3))'))
print(loader.eval('py_sum([1, 2])'))
a = loader.a
print(type(a),a)
b = loader.b
b.push(6)
print(type(b),b)
b = b.to_list()
print(type(b),b)
c = loader.c
print(type(c),c)
c = c.to_dict()
print(type(c), c)
# CryptoJS = js2py.require('crypto-js')
# print(type(CryptoJS))
# print(js2py.require('underscore'))
JSON = js2py.eval_js('JSON')
r = JSON.parse('[{"a":1}]')
print(type(r),r)
print(r[0].a)
print(loader.eval('r = requests.get("https://www.baidu.com/");r.encoding = "utf-8";r.text'))
# 下面是错误用法,没有loader环境没法正确eval_js,有loader用eval不需要eval_js
# print(js2py.eval_js('r = requests.get("https://www.baidu.com/");r.encoding = "utf-8";r.text'))
with open('../js/蓝莓影视.js',encoding='utf-8') as f:
yk = f.read()
print(yk)
if __name__ == '__main__':
covert_demo()