django實(shí)現(xiàn)簡單的代碼編輯器

• 環(huán)境準(zhǔn)備
• • 這里介紹項(xiàng)目的路徑

環(huán)境準(zhǔn)備

1.首先安裝python，python安裝詳情這個(gè)可以查看官網(wǎng)的教程進(jìn)行安裝
2.安裝python后，再通過命令pip install django安裝django，django安裝完再進(jìn)行創(chuàng)建項(xiàng)目(官網(wǎng)可查看安裝和創(chuàng)建app步驟，這里不細(xì)說)，然后再cmd里再輸入命令：pip install djangorestframework安裝djangorestframework

這里介紹項(xiàng)目的路徑

如下圖（我們先在項(xiàng)目里創(chuàng)建一個(gè)Use_cases的app，然后創(chuàng)建一個(gè)urls.py
的文件和serializers.py文件，然后我們在views.py文件里編寫我們的后端代碼，serializers.py編寫表單驗(yàn)證邏輯，models定義模塊）：

models.py的代碼如下：

from django.db import models from django.core import validators#驗(yàn)證器 #Create your models here. class UseTestOrm(models.Model):#簽名加密配置class Meta:db_table = 'usertestorm'ordering = ["-data_time"]judge_edit = models.CharField(max_length=10, null=True) # 判斷是否編輯的用例http_file_py_name = models.TextField(null=True, default="") # py代碼

serializers.py文件代碼如下

import refrom apps.HttprunerMan.Use_cases.models import UseTestOrm#導(dǎo)入環(huán)境ormclass PythonSeriaklizers(serializers.ModelSerializer):#python文件運(yùn)行序列化http_file_py_name = serializers.CharField(error_messages={"required": "代碼不能為空！", "blank": "代碼不能為空！"})judge_edit = serializers.CharField(required=False, allow_blank=True, max_length=10,error_messages={"max_length": "judge_edit參數(shù)不能超過10個(gè)字符串！"}, default="yes")class Meta:model = UseTestOrmfields=('http_file_py_name','judge_edit')def validate_http_file_py_name(self,value):#對用例id表單驗(yàn)證os_list="import(\s+)os"#sys_list="import(\s+)sys"subprocess_list = "import(\s+)subprocess"true_list = "while(\s+)True"#or(re.findall(true_list,value)!=[])#or(re.findall(sys_list,value)!=[])if (re.findall(os_list,value)!=[])or(re.findall(subprocess_list,value)!=[])or("exec" in value)or("pickle" in value):raise ValidationError("代碼上存在非法模塊，請去掉os、exec、pickle、subprocess模塊和while True方法")return value

views.py代碼如下：

import subprocess#終端打印 import time from django.conf import settings from apps.HttprunerMan.Use_cases.serializers import PythonSeriaklizers from rest_framework.views import APIView from rest_framework.response import Response from rest_framework import status class Test_python_view(APIView):#運(yùn)行python代碼def post(self,request):#post請求serializer = PythonSeriaklizers(data=request.data)if serializer.is_valid(): # 表單驗(yàn)證通過執(zhí)行下面代碼with transaction.atomic(): # 創(chuàng)建事物，保證py文件運(yùn)行成功和py文件運(yùn)行和刪除成功，否則就回滾save_is = transaction.savepoint()all_obj,file_name="",""try:token1 = request.data.get("token")if token1 == settings.SECRET_KEY:#驗(yàn)證傳上來的token是否與django的密鑰一直，這樣保證安全問題http_file_py_name= serializer.data.get("http_file_py_name")#獲取代碼file_name = settings.MEDIA_ROOT + '\\' + str(int(time.time()))+".py"#生成py文件f = open(file_name, "bw")#打開生成的py文件#下面for循環(huán)把讀取的數(shù)據(jù)，把讀取的數(shù)據(jù)寫到創(chuàng)建的py文件for i in '{}'.format(str(http_file_py_name)):f.write(i.encode())f.close()#讀取完成關(guān)閉文件obj = subprocess.Popen('python {}'.format(file_name), shell=True, stdout=subprocess.PIPE,stderr=subprocess.PIPE)#這里是運(yùn)行py文件的代碼，stdout是獲取運(yùn)行該命令的正確信息，stderr是獲取錯(cuò)誤信息try:all_obj += obj.stdout.read().decode('gbk') + "\r\n" + obj.stderr.read().decode('gbk')#把獲取的正確和錯(cuò)誤信息進(jìn)行組合except Exception as e:return Response({"all_result": str(e), "message": "成功", "code": "200"})#這里如果出現(xiàn)異常進(jìn)行返回結(jié)果os.remove(file_name)#刪除該py文件這樣防止產(chǎn)生垃圾文件return Response({"all_result": all_obj, "message": "成功", "code": "200"})else:#如果token校驗(yàn)錯(cuò)誤就打印下面代碼return Response(data={"message": "token參數(shù)錯(cuò)誤或?yàn)榭?#xff01;", "code": 400},status=status.HTTP_400_BAD_REQUEST)except Exception as e:os.remove(file_name)transaction.savepoint_rollback(save_is)return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

urls.py文件如下定義

from django.urls import path,re_path from apps.HttprunerMan.Use_cases.views import Test_python_view, from rest_framework.routers import DefaultRouter#導(dǎo)入這個(gè)模塊app_name="Use_cases" urlpatterns=[path("Test_python_view/",Test_python_view.as_view()),#python代碼測試]

項(xiàng)目里的urls.py文件代碼:

from django.contrib import admin from django.urls import path,include from django.conf.urls.static import static from django.conf import settings urlpatterns = [path('usetest/',include("apps.HttprunerMan.Use_cases.urls")),]

settings.py文件需要在INSTALLED_APPS里添加app路徑如下

最終使用python manage.py runserver命令啟動(dòng)項(xiàng)目，項(xiàng)目效果圖如下

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