html 上传下载ok chrome需要延时1s样子

最新推荐文章于 2024-08-06 11:32:35 发布

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最新推荐文章于 2024-08-06 11:32:35 发布

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分类专栏： python

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本文介绍了一个使用Python实现的简易HTTP服务器代码，支持GET、POST、PUT及DELETE等请求方法，并具备基本的文件上传和下载功能。

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#! /usr/bin/python2
# coding=utf-8

from jinja2 import Environment, PackageLoader
import socket
import time, datetime, re
import os
import hashlib, urllib, json
#from datetime import datetime

global listen_socket

_COOKIE_KEY = 'AwEsOmE'

UPLOAD_FOLDER = 'upload'

basedir = os.path.abspath(os.path.dirname(__file__))  # 获取当前项目的绝对路径
ALLOWED_EXTENSIONS = set(['txt', 'png', 'jpg', 'xls', 'JPG', 'PNG', 'xlsx', 'gif', 'GIF'])  # 允许上传的文件后缀

# 判断文件是否合法
def allowed_file(filename):
    return '.' in filename and filename.rsplit('.', 1)[1] in ALLOWED_EXTENSIONS





def getfile():
    print (os.getcwd())
    path1=os.path.join(os.getcwd(), 'uploadfile')
    print "111",path1
    flist=os.listdir(path1)
    print (os.getcwd()), flist
    return flist

def isHavefile(filename):
    print (os.getcwd())
    path1=os.path.join(os.getcwd(), 'uploadfile', filename)
    flag=os.path.isfile(path1)
    print (os.getcwd()), flag, "xxx"
    return flag






#下载要下载的文件，要下载的文件是通过get方法来传递的




def fun():
    global listen_socket
    global g_user

    _COOKIE_NAME = 'awesession'
    http_response = '''HTTP/1.x 200 OK\nContent-Type: text/html; charset=utf-8; \n\n'''
    print "g_user"
    while True:
        conn, client_address = listen_socket.accept()
        #request = conn.recv(1024)
        request = ''
        buffer_size = 1024
        while 1:
            time.sleep(0.9)
            data = conn.recv(buffer_size).decode('utf-8')
            request += data
            print "len",len(data)
            if len(data) < buffer_size:
                break
        print "yanshi"





        print "re--", len(request), request
        if request == "":
            print "requrest null"
            continue
        method = request.split(' ')[0]
        src = request.split(' ')[1]
        print "-method----------------------------------------------------", method, src
        g_user = None
        try:
            cookie = request.split("Cookie:")[1].split("\r\n")[0]

        except:
            print "cookie null"
        '''
        <head>
<title>WOWzh</title>
</head>
<html>
<p>Wow, Pythond 说的Sserver</p>

</html>
        '''

        if method == 'GET':
            # ULR
            print "-----get src--------",src
            file_name = src[1:len(src)]
            print "-----file_name--------", file_name
            #if src == '/test.jpg':

            if -1 != src.find("/static/css/"):
                print "static--dir"
                content = read_file(file_name, "text/css")
            elif  -1 != src.find("/download/"):
                print "download--dir"
                content = read_file(file_name, "text/css")
            else:

                file_name = "upload2.html"
                with open("./templates/upload2.html","rb") as f:
                    output = f.read()

                # print output
                content = http_response + output

            print 'Connected by', client_address
            print 'Request is:', request
            #print 'content is:', content
            conn.sendall(content)
        elif method == 'POST':
            if -1!= src.find("/api/upload"):
                http_response2 = '''HTTP/1.x 200 OK\nContent-Type: application/json; charset=utf-8\n\n'''
                form = request.split('\r\n')
                print "form----", form
                idx = form.index('') + 1  # Find the empty line
                print "idx----", idx
                entry = form[idx:]  # Main content of the request
                print "entry----", entry, type(entry)
                body = request.split('\r\n\r\n')
                for b in body:
                    print "bb",body.index(b), b
                print "body",body

                body_last=body[len(body)-1]
                body_last2=body[len(body)-2]
                print "body last", body_last, body_last2
                file_dir = os.path.join(basedir, UPLOAD_FOLDER)  # 拼接成合法文件夹地址
                print "file_dir",file_dir
                if not os.path.exists(file_dir):
                    os.makedirs(file_dir)  # 文件夹不存在就创建
                print "req",request
                print "files",request
                f = request  # 从表单的file字段获取文件，myfile为该表单的name值
                boundary = f.split("boundary=")[-1].split("\r\n")[0]
                filename = f.split("filename=")[-1].split("Content-Type")[0].strip('\r\n').replace("\"","")
                print "leixing",type(boundary),boundary,filename,type(filename), len(filename)
                str_b = "--" + boundary + "--"
                body_last = body_last.replace(str_b, "")
                print "body_last",body_last
                #'''
                if f and allowed_file(filename):  # 判断是否是允许上传的文件类型
                    fname = filename
                    ext = fname.rsplit('.', 1)[1]  # 获取文件后缀
                    unix_time = int(time.time())
                    new_filename = str(unix_time) + '.' + ext  # 修改文件名
                    print "dirr",file_dir, new_filename

                    with open(os.path.join(file_dir, new_filename),"wb") as f:
                        f.write(body_last)
                      # 保存文件到upload目录
                    str1 = http_response2 + json.dumps(
                        dict(error='0', errmsg='上传成功'))
                else:
                    str1 = http_response2 + json.dumps(
                        dict(error='1001', errmsg='上传失败'))
                #'''
                #str1 = http_response2 + json.dumps(
                #    dict(error='1001', errmsg='上传失败no'))
            else:
                str1 = ""
            print "str1--------------api-auth",str1
            conn.sendall(str1)
            ######
            # More operations, such as put the form into database
            # ...
            ######

        elif method == 'PUT':
            print "-----PUT src--------", src
        elif method == 'DELETE':
            print "-----DELETE src--------", src
        # close connection
        conn.close()

def init_web():
    global listen_socket
    HOST, PORT = '', 8888

    listen_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    listen_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
    listen_socket.bind((HOST, PORT))
    listen_socket.listen(10)
    print 'Serving HTTP on port %s ...' % PORT






def read_file(file_name, file_type):
    print "---------------------------",file_name
    f = open(file_name, 'rb')
    pic_content = '''\nHTTP/1.x 200 OK\nContent-Type: %s\n\n''' % (file_type)
    pic_content = pic_content + f.read()
    f.close()
    return pic_content




if __name__=='__main__':
    init_web()
    fun()

upload2.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form id="form1" method="post" action="/api/upload" enctype="multipart/form-data">
    <div>
        <input id="File1" type="file" name="file"/>  <!--后台代码中获取文件是通过form的name来标识的-->
        <input type="submit">提交</input>
    </div>
    <p>
    <a href="download/3.txt" download="33.txt">Download file</a>
    </p>
</form>
</body>
</html>