/
webserver.py
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/
webserver.py
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# coding=utf-8
from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from database_setup import Restaurant, Base, MenuItem
import urllib, sys
import cgi
engine = create_engine('sqlite:///restaurantmenu.db')
Base.metadata.bind = engine
DBSession = sessionmaker(bind=engine)
session = DBSession()
class WebServerHandler(BaseHTTPRequestHandler):
def do_GET(self):
try:
if self.path.endswith("/restaurants/new"):
self.send_response(200)
self.send_header('Content-type','text/html')
self.end_headers()
output=""
output+="<html><body>"
output+="<h1>Create a New Restaurant</h1>"
output+='''<form method='POST' enctype='multipart/form-data' action='/restaurants/new'> Restaurant Name: <input name="newRestaurantName" type="text" placeholder="New Restaurant Name"><input type="submit" value="Create"></form></body></html>'''
self.wfile.write(output)
return
elif self.path.endswith("/edit"):
restaurantIDPath=self.path.split('/')[2]
myRestaurantQuery=session.query(Restaurant).filter_by(id=restaurantIDPath).one()
if myRestaurantQuery:
self.send_response(200)
self.send_header('Content-type', 'text/html')
self.end_headers()
output = "<html><body>"
output += "<h1>"
output += myRestaurantQuery.name
output += "</h1>"
output += "<form method='POST' enctype='multipart/form-data' action = '/restaurants/%s/edit' >" % restaurantIDPath
output += "<input name = 'newRestaurantName' type='text' placeholder = '%s' >" % myRestaurantQuery.name
output += "<input type = 'submit' value = 'Rename'>"
output += "</form>"
output += "</body></html>"
self.wfile.write(output)
elif self.path.endswith("/delete"):
restaurantIDPath=self.path.split('/')[2]
myRestaurantQuery=session.query(Restaurant).filter_by(id=restaurantIDPath).one()
if myRestaurantQuery:
self.send_response(200)
self.send_header('Content-type', 'text/html')
self.end_headers()
output = "<html><body>"
output += "<h1>"
output += myRestaurantQuery.name
output += "</h1>"
output += "<form method='POST' enctype='multipart/form-data' action = '/restaurants/%s/delete' >" % restaurantIDPath
output += "Confirm to Delete "+myRestaurantQuery.name+" ?"
output += "<input type = 'submit' value = 'Delete'>"
output += "</form>"
output += "</body></html>"
self.wfile.write(output)
elif self.path.endswith("/restaurants") or self.path.endswith("/restaurants/"):
self.send_response(200)
self.send_header('Content-type', 'text/html')
self.end_headers()
restaurants=session.query(Restaurant).all()
output = ""
output += "<html><body>"
output += '''<a href="/restaurants/new"<b>Create a New restaurant</b></a><p>'''
for restaurant in restaurants:
output += "<h2>"+restaurant.name+"</h2><big><b>ID: </b>"+str(restaurant.id)+"</big><br /><small><a href='/restaurants/"+str(restaurant.id)+"/edit'>Edit</a> <a href='/restaurants/"+str(restaurant.id)+"/delete'>Delete</a></small><hr>"
output += "</body></html>"
self.wfile.write(output)
print output
return
except IOError:
self.send_error(404, 'File Not Found: %s' % self.path)
def do_POST(self):
try:
if self.path.endswith("/restaurants/new"):
self.send_response(301)
self.send_header('Content-type', 'text/html')
self.end_headers()
ctype, pdict = cgi.parse_header(
self.headers.getheader('content-type'))
if ctype == 'multipart/form-data':
fields = cgi.parse_multipart(self.rfile, pdict)
messagecontent = fields.get('newRestaurantName')
newRestaurant=Restaurant(name=messagecontent[0])
session.add(newRestaurant)
session.commit()
output=""
output+='''<html><head><meta http-equiv="refresh" content="2;url=/restaurants" ></head><body>'''
output+="Add "+messagecontent[0]+" into database <b>Success!</b>"
output+="</body></html>"
self.wfile.write(output)
return
elif self.path.endswith("/edit"):
ctype, pdict = cgi.parse_header(
self.headers.getheader('content-type'))
if ctype == 'multipart/form-data':
fields = cgi.parse_multipart(self.rfile, pdict)
messagecontent = fields.get('newRestaurantName')
restaurantIDPath = self.path.split("/")[2]
myRestaurantQuery = session.query(Restaurant).filter_by(
id=restaurantIDPath).one()
if myRestaurantQuery != []:
myRestaurantQuery.name = messagecontent[0]
session.add(myRestaurantQuery)
session.commit()
self.send_response(301)
self.send_header('Content-type', 'text/html')
self.send_header('Location', '/restaurants')
self.end_headers()
elif self.path.endswith("/delete"):
restaurantIDPath = self.path.split("/")[2]
myRestaurantQuery = session.query(Restaurant).filter_by(id=restaurantIDPath).one()
if myRestaurantQuery != []:
session.delete(myRestaurantQuery)
session.commit()
self.send_response(301)
self.send_header('Content-type', 'text/html')
self.send_header('Location', '/restaurants')
self.end_headers()
except:
output=""
output+='''<html><body>500 Internal Server Error</body></html>'''
self.wfile.write(output)
return
def main():
try:
port = 8003
server = HTTPServer(('', port), WebServerHandler)
print "Web Server running on port %s" % port
server.serve_forever()
except KeyboardInterrupt:
print " ^C entered, stopping web server...."
server.socket.close()
if __name__ == '__main__':
main()