10174900160
/
cloudcomputingProject


								from flask import Flask,render_template,request,abort,jsonify

								import json

								import os

								from xml.etree.ElementTree import Element,SubElement, tostring,ElementTree

								import datetime

								import functools

								from itsdangerous import TimedJSONWebSignatureSerializer as Serializer

								import csv

								import hashlib


								HOME_PATH=os.getcwd()

								BIN_PATH=os.path.join(HOME_PATH,"bin")

								HOMEWORK_METADATA_PATH=os.path.join(HOME_PATH,"homeworkMetadata.xml")

								ADMININFO_PATH=os.path.join(HOME_PATH,"adminInfo.xml")

								STUDENTLIST_PATH=os.path.join(HOME_PATH,"studentList.csv")

								SECRET_KEY="abcdefghijk"


								app = Flask(__name__)


								def create_token(api_user):

								    #第一个参数是内部的私钥，这里写在共用的配置信息里了，如果只是测试可以写死

								    #第二个参数是有效期(秒)

								    s = Serializer(SECRET_KEY,expires_in=3600)

								    #接收用户id转换与编码

								    token = s.dumps({"id":api_user})

								    return str(token,encoding="utf-8")


								def login_required(view_func):

								    @functools.wraps(view_func)

								    def verify_token(*args,**kwargs):

								        try:

								            #在请求头上拿到token

								            token = request.headers["token"]

								            token = bytes(token,encoding="utf-8")

								        except Exception:

								            #没接收的到token,给前端抛出错误

								            #这里的code推荐写一个文件统一管理。这里为了看着直观就先写死了。

								            return jsonify(code = 4103,msg = '缺少参数token')


								        s = Serializer(SECRET_KEY)

								        try:

								            s.loads(token)

								        except Exception:

								            return jsonify(code = 4101,msg = "登录已过期")


								        return view_func(*args,**kwargs)


								    return verify_token


								@app.route("/")

								def root():

								    homeworks=getAllHomeworks()

								    '''

								    for i in range(len(homeworks)):

								        deadline=homeworks[i]["deadline"]

								        deadline=datetime.datetime.strptime(deadline, '%Y-%m-%d %H:%M:%S')

								        now=datetime.datetime.now()

								        countdown=deadline-now

								        #homeworks[i]["countdown"]=str(countdown)

								        homeworks[i]["countdown"]="100000"

								    '''

								    return render_template('root.html',homeworks=homeworks)


								@app.route("/upload",methods=["POST"])

								def upload():

								    homeworkName=request.form.get("homeworkName")

								    if findHomework(homeworkName) is None:

								        return error()

								    name = request.form.get("name")

								    num = request.form.get("num")

								    uploadFile = request.files['file']

								    folderPath=os.path.join(BIN_PATH,homeworkName)

								    currentDateTime=datetime.datetime.now()

								    uploadFile.save(os.path.join(folderPath,num+"_"+name+"_"+currentDateTime.strftime('%H-%M-%S')+"."+uploadFile.filename.split(".")[-1]))

								    return json.dumps({"result": 1})


								@app.route("/contact")

								def contact():

								    return render_template("contact.html")


								@app.route("/admin/login")

								def adminLogin():

								    return render_template('adminLogin.html')


								@app.route("/admin/verify",methods=["POST"])

								def adminVerify():

								    username = request.form.get("username")

								    password = request.form.get("password")

								    if password=="123456" and username=="admin":

								        return json.dumps({"result":True,"token":str(create_token(username))})

								    else:

								        return json.dumps({"result":False})


								@app.route("/admin")

								@login_required

								def admin():

								    allHomeworks=getAllHomeworks()

								    return render_template("admin.html",homeworks=allHomeworks)


								@app.route("/admin/<homework>")

								@login_required

								def homework(homework):

								    currentInfo=getCurrentHomework(homework)

								    return render_template("homework.html",data=currentInfo,homeworkName=homework)


								@app.route("/admin/studentList")

								@login_required

								def studentList():

								    studentList=getStudentList()

								    return render_template('studentList.html',data=studentList)


								@app.route("/admin/studentListFile",methods=["POST"])

								@login_required

								def studentListFile():

								    uploadFile = request.files['file']

								    uploadFile.save(STUDENTLIST_PATH)

								    return json.dumps({"result": 1})


								@app.route("/admin/publish")

								@login_required

								def publish():

								    return render_template('publish.html')


								@app.route("/admin/newHomework",methods=["POST"])

								@login_required

								def newHomework():

								    name = request.form.get("name")

								    describe = request.form.get("describe")

								    deadline=request.form.get("deadline")

								    addHomework(name,describe,deadline)

								    return json.dumps({"result": 1})


								@app.route("/admin/cancel/<homework>",methods=["POST"])

								@login_required

								def cancelHomework(homework):

								    deleteHomework(homework)

								    return json.dumps({"result": 1})


								def getCurrentHomework(homework):

								    homeworkFolderPath=os.path.join(BIN_PATH,homework)

								    if not os.path.exists(homeworkFolderPath):

								        return error()

								    #已经交

								    homeworkFolder=os.listdir(homeworkFolderPath)

								    if len(homeworkFolder)>0:

								        for i in range(len(homeworkFolder)):

								            homeworkFolder[i]=homeworkFolder[i].strip(".zip").split("_")[1]

								    #未交

								    studentList=getStudentList()

								    result=[i+["yes"] if i[1] in homeworkFolder else i+["no"] for i in studentList ]

								    return result


								def getStudentList():

								    with open(STUDENTLIST_PATH,encoding = 'utf-8-sig') as f:

								        stuList=csv.reader(f)

								        result=[i for i in stuList]

								        return result


								def getAllHomeworks():

								    root=ElementTree().parse(HOMEWORK_METADATA_PATH)

								    result=[]

								    for homework in list(root):

								        tempDict={"name":homework.find("name").text}

								        tempDict["describe"]=homework.find("describe").text

								        tempDict["deadline"]=homework.find("deadline").text

								        result.append(tempDict)

								    return result


								def getHomeworkInfo(homework):

								    tempDict={"name":homework.getElementsByTagName("name")}

								    tempDict["describe"]=homework.getElementsByTagName("describe")

								    tempDict["deadline"]=homework.getElementsByTagName("deadline")

								    return tempDict


								def findHomework(homeworkName):

								    tree=ElementTree().parse(HOMEWORK_METADATA_PATH)

								    homeworks=list(tree)

								    for homework in homeworks:

								        name=homework.find("name").text

								        if homeworkName==name:

								            return homework

								    return None


								def addHomework(name,describe,deadline):

								    tree=ElementTree().parse(HOMEWORK_METADATA_PATH)

								    tmp = SubElement(tree, "homework")

								    SubElement(tmp, "name").text = name

								    SubElement(tmp, "describe").text = describe

								    SubElement(tmp, "deadline").text = deadline

								    tree=ElementTree(tree)

								    tree.write(HOMEWORK_METADATA_PATH,"utf-8")

								    homeworkPath=os.path.join(BIN_PATH,name)

								    if not os.path.exists(homeworkPath):

								        os.mkdir(homeworkPath)


								def deleteHomework(homeworkName):

								    tree=ElementTree().parse(HOMEWORK_METADATA_PATH)

								    homeworks=list(tree)

								    for homework in homeworks:

								        name=homework.find("name").text

								        if homeworkName==name:

								            tree.remove(homework)

								            break

								    tree=ElementTree(tree)

								    tree.write(HOMEWORK_METADATA_PATH,"utf-8")


								def error():

								    return abort(404)


								if __name__ == '__main__':

								    app.run(host="127.0.0.1")