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奇葩需求之-不使用python的第三方库做一个简单的网页

By 李镇伟 2019年1月10日

需求

最近接了一个特别奇葩的需求，要求在最基础的python2.7的docker环境上运行一个小型网站，不能使用额外的第三方库。因为之前都用flask,忽然不用库，有一点懵逼。然后找了一圈，发现用python自带的httpserver似乎可以完成这样的任务。代码如下：

代码

index.html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
	<form action="/signin" method="post">
		phone:<input type="text" name="phone"><br>
		vscode:<input type="password" name="vscode"><br>
		<input type="submit" value="login">
	</form>
</body>
</html>

test.py

# -*- coding:utf-8 -*-
# author: lichmama
# email: nextgodhand@163.com
# filename: httpd.py
import io
import os
import sys
import urllib
from BaseHTTPServer import HTTPServer
from SimpleHTTPServer import SimpleHTTPRequestHandler
import urllib2
import json
class MyRequestHandler(SimpleHTTPRequestHandler):
    protocol_version = "HTTP/1.1"
    server_version = "PSHS/0.1"
    sys_version = "Python/2.7.x"
    def get_evns(self):
        evns = os.environ
        return ' \\n '.join([k+"="+v for k,v in evns.items()])
    def do_GET(self):
        if self.path == "/" or self.path == "/index":
            content = open("index.html", "rb").read()
            self.send_head(content)
        elif self.path == "/evns":
            content = self.get_evns()
            self.send_head(content)
        else:
            path = self.translate_path(self.path)
            system=sys.platform
            osv=os.environ
            if osv.has_key('HOMEPATH'):
                content = os.environ['HOMEPATH']
            else:
                content = os.environ['HOME']
            self.send_head(content)
            if os.path.exists(path):
                extn = os.path.splitext(path)[1].lower()
                content = open(path, "rb").read()
                self.send_head(content, type=self.extensions_map[extn])
            else:
                content = open("404.html", "rb").read()
                self.send_head(content, code=404)
        self.send_content(content)
    def do_POST(self):
        if self.path == "/signin":
            data = self.rfile.read(int(self.headers["content-length"]))
            data = urllib.unquote(data)
            data = self.parse_data(data)
            test_data = {"username": "zhangyong_new","userpasswd": "123456"}
            requrl = "https://dev.honcloud.honeywell.com.cn/dashboard/usercentre/login"
            header = {"Content-type": "application/json"}
            test_data_urlencode=json.dumps(test_data)
            req = urllib2.Request(url=requrl, data=test_data_urlencode,headers=header)
            res_data = urllib2.urlopen(req)
            res = res_data.read()
            print res
            self.send_head(res)
            self.send_content(res)
    def parse_data(self, data):
        ranges = {}
        for item in data.split("&"):
            k, v = item.split("=")
            ranges[k] = v
        return ranges
    def send_head(self, content, code=200, type="text/html"):
        self.send_response(code)
        self.send_header("Content-Type", type)
        self.send_header("Content-Length", str(len(content)))
        self.end_headers()
    def send_content(self, content):
        f = io.BytesIO()
        f.write(content)
        f.seek(0)
        self.copyfile(f, self.wfile)
        f.close() if __name__ == "__main__":
    if len(sys.argv) == 2:
        # set the target where to mkdir, and default "D:/web"
        MyRequestHandler.target = sys.argv[1]
    try:
        server = HTTPServer(("0.0.0.0", 8282), MyRequestHandler)
        print "pythonic-simple-http-server started, serving at http://%s:%d"%(server.server_address[0],server.server_address[1])
        print server.server_address
        server.serve_forever()
    except KeyboardInterrupt:
        server.socket.close()