annotate pythonServer-3.py @ 1232:bf8716341ed6

WAC2016 review updated PDF

from http.server import BaseHTTPRequestHandler, HTTPServer
from os import walk
from os import path
from os import listdir
import inspect
import os
import urllib as urllib2
import pickle
import datetime

# Go to right folder. 
scriptdir = os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe()))) # script directory
os.chdir(scriptdir) # does this work?

PSEUDO_PATH = 'example_eval/'
pseudo_files = []
for filename in listdir(PSEUDO_PATH):
    if filename.endswith('.xml'):
        pseudo_files.append(filename)

curSaveIndex = 0;
curFileName = 'test-0.xml'
while(path.isfile('saves/'+curFileName)):
	curSaveIndex += 1;
	curFileName = 'test-'+str(curSaveIndex)+'.xml'

pseudo_index = curSaveIndex % len(pseudo_files)

print('URL: http://localhost:8000/index.html')

def send404(s):
	s.send_response(404)
	s.send_header("Content-type", "text/html")
	s.end_headers()
	
def processFile(s):
	s.path = s.path.rsplit('?')
	s.path = s.path[0]
	s.path = s.path[1:len(s.path)]
	st = s.path.rsplit(',')
	lenSt = len(st)
	fmt = st[lenSt-1].rsplit('.')
	s.send_response(200)
	if (fmt[1] == 'html'):
		s.send_header("Content-type", 'text/html')
		fileDump = open(urllib2.parse.unquote(s.path), encoding='utf-8')
		fileBytes = bytes(fileDump.read(), "utf-8")
		fileDump.close()
	elif (fmt[1] == 'css'):
		s.send_header("Content-type", 'text/css')
		fileDump = open(urllib2.parse.unquote(s.path), encoding='utf-8')
		fileBytes = bytes(fileDump.read(), "utf-8")
		fileDump.close()
	elif (fmt[1] == 'js'):
		s.send_header("Content-type", 'application/javascript')
		fileDump = open(urllib2.parse.unquote(s.path), encoding='utf-8')
		fileBytes = bytes(fileDump.read(), "utf-8")
		fileDump.close()
	else:
		s.send_header("Content-type", 'application/octet-stream')
		fileDump = open(urllib2.parse.unquote(s.path), 'rb')
		fileBytes = fileDump.read()
		fileDump.close()
	s.send_header("Content-Length", len(fileBytes))
	s.end_headers()
	s.wfile.write(fileBytes)
	
def saveFile(self):
	global curFileName
	global curSaveIndex
	varLen = int(self.headers['Content-Length'])
	postVars = self.rfile.read(varLen)
	print(curFileName)
	file = open('saves/'+curFileName,'w')
	file.write(postVars.decode("utf-8"))
	file.close()
	try:
		wbytes = os.path.getsize('saves/'+curFileName)
	except OSError:
		self.send_response(200)
		self.send_header("Content-type", "text/xml")
		self.end_headers()
		self.wfile.write('<response state="error"><message>Could not open file</message></response>')
	self.send_response(200)
	self.send_header("Content-type", "text/xml")
	self.end_headers()
	self.wfile.write(bytes('<response state="OK"><message>OK</message><file bytes="'+str(wbytes)+'">"saves/'+curFileName+'"</file></response>','utf-8'))
	curSaveIndex += 1
	curFileName = 'test-'+str(curSaveIndex)+'.xml'

class MyHandler(BaseHTTPRequestHandler):
	def do_HEAD(s):
		s.send_response(200)
		s.send_header("Content-type", "text/html")
		s.end_headers()
	def do_GET(request):
		global pseudo_index
		global pseudo_files
		global PSEUDO_PATH
		if(request.client_address[0] == "127.0.0.1"):
			if (request.path == "/favicon.ico"):
				send404(request)
			else:
				if (request.path == '/'):
					request.path = '/index.html'
				elif (request.path == '/pseudo.xml'):
					request.path = '/'+PSEUDO_PATH + pseudo_files[pseudo_index]
					print(request.path)
					pseudo_index += 1
					pseudo_index %= len(pseudo_files)
				processFile(request)
		else:
			send404(request)

	def do_POST(request):
		if(request.client_address[0] == "127.0.0.1"):
			if (request.path == "/save" or request.path == "/save.php"):
				saveFile(request)
		else:
			send404(request)

def run(server_class=HTTPServer,
        handler_class=MyHandler):
    server_address = ('', 8000)
    httpd = server_class(server_address, handler_class)
    httpd.serve_forever()

run()