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I'm trying to create a simple http server with basic GET and POST
functionality. The program is supposed to GET requests by printing out a simple
webpage that greets a user and askes how he would rather be greeted. When the
user enters a greeting of his choice, the webpage should now greet him as he
had chosen.
While GET seems to be working fine, POST is not. I tried debugging by printing
at every code execution and it seems to be getting stuck here:
ctype, pdict = cgi.parse_header(self.headers.getheader('content-type'))
I'll paste the code full code below, along with my terminal output.
Code:
from http.server import BaseHTTPRequestHandler, HTTPServer
import cgi
class webServerHandler(BaseHTTPRequestHandler):
def do_GET(self):
try:
if self.path.endswith("/hello"):
self.send_response(200)
self.send_header('Content-type', 'text/html')
self.end_headers()
output = ""
output += "<html><body>"
output += "<h1>Hello!</h1>"
output += '''<form method='POST'
enctype='multipart/form-data' action='/hello'><h2>What would you like me to
say?</h2><input name="message" type="text" ><input type="submit"
value="Submit"> </form>'''
output += "</body></html>"
self.wfile.write(output.encode(encoding = 'utf_8'))
print (output)
return
if self.path.endswith("/hola"):
self.send_response(200)
self.send_header('Content-type', 'text/html')
self.end_headers()
output = ""
output += "<html><body>"
output += "<h1>¡ Hola !</h1>"
output += '''<form method='POST'
enctype='multipart/form-data' action='/hello'><h2>What would you like me to
say?</h2><input name="message" type="text" ><input type="submit"
value="Submit"> </form>'''
output += "</body></html>"
self.wfile.write(output.encode(encoding = 'utf_8'))
print (output)
return
except IOError:
self.send_error(404, 'File Not Found: %s' % self.path)
def do_POST(self):
try:
self.send_response(201)
print("Sent response")
self.send_header('Content-type', 'text/html')
print("Sent headers")
self.end_headers()
print("Ended header")
ctype, pdict =
cgi.parse_header(self.headers.getheader('content-type'))
print("Parsed headers")
if ctype == 'multipart/form-data':
fields = cgi.parse_multipart(self.rfile, pdict)
messagecontent = fields.get('message')
print("Receiver message content")
output = ""
output += "<html><body>"
output += " <h2> Okay, how about this: </h2>"
output += "<h1> %s </h1>" % messagecontent[0]
output += '''<form method='POST' enctype='multipart/form-data'
action='/hello'><h2>What would you like me to say?</h2><input name="message"
type="text" ><input type="submit" value="Submit"> </form>'''
output += "</body></html>"
print(output)
self.wfile.write(output.encode(encoding = 'utf_8'))
print ("Wrote through CGI")
except:
pass
def main():
try:
port = 8080
server = HTTPServer(('', port), webServerHandler)
print ("Web Server running on port", port)
server.serve_forever()
except KeyboardInterrupt:
print (" ^C entered, stopping web server....")
server.socket.close()
if __name__ == '__main__':
main()
Terminal Output:
Web Server running on port 8080
127.0.0.1 - - [28/Apr/2016 13:28:59] "GET /hello HTTP/1.1" 200 -
<html><body><h1>Hello!</h1><form method='POST'
enctype='multipart/form-data' action='/hello'><h2>What would you like me to
say?</h2><input name="message" type="text" ><input type="submit"
value="Submit"> </form></body></html>
127.0.0.1 - - [28/Apr/2016 13:29:09] "POST /hello HTTP/1.1" 201 -
Sent response
Sent headers
Ended header
As you can see, the POST function does not seem to go beyong the parse_header
command. I cannot figure this out, and any help would be usefu!
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