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PythonCHBPythonCHB
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added files for week 5
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‎week-04/presentation-week04.tex‎

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‎week-05/code/Brian's/echo_client.py‎

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import socket
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host = 'localhost'
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port = 50000
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size = 1024
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s = socket.socket(socket.AF_INET,
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socket.SOCK_STREAM)
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s.connect((host,port))
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s.send('Hello, world')
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data = s.recv(size)
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s.close()
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print 'Received:', data
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‎week-05/code/Brian's/echo_server.py‎

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import socket
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host = ''
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port = 50000
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backlog = 5
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size = 1024
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s = socket.socket(socket.AF_INET,
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socket.SOCK_STREAM)
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s.bind((host,port))
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s.listen(backlog)
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while True:
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client, address = s.accept()
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data = client.recv(size)
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if data:
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client.send(data)
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client.close()
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‎week-05/code/Brian's/favicon.ico‎

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‎week-05/code/Brian's/print_time.py‎

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import datetime
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print datetime.datetime.now().isoformat()

‎week-05/code/Brian's/thirty_minute_webserver.py‎

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#
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# ws30 -- the thirty minute web server
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# author: Wilhelm Fitzpatrick (rafial@well.com)
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# date: August 3rd, 2002
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#
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# Written after attending a Dave Thomas talk at PNSS and hearing about
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# his "write a web server in Ruby in one hour" challenge.
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#
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# Actual time spent:
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# 30 minutes reading socket man page
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# 30 minutes coding to first page fetched
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# 3 hours making it prettier & more pythonic
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#
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# updated by Brian Dorsey
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#
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import os
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import socket
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HOST = ""
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PORT = 8080
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MIME_TYPES = {'.jpg': 'image/jpg',
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'.gif': 'image/gif',
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'.png': 'image/png',
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'.html': 'text/html',
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'.pdf': 'application/pdf'}
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RESPONSE_HEADERS = {}
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RESPONSE_HEADERS[200] =\
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"""HTTP/1.0 200 Okay
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Server: ws30
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Content-type: %s
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%s
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"""
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RESPONSE_HEADERS[301] =\
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"""HTTP/1.0 301 Moved
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Server: ws30
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Content-type: text/plain
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Location: %s
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moved
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"""
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RESPONSE_HEADERS[404] =\
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"""HTTP/1.0 404 Not Found
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Server: ws30
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Content-type: text/plain
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%s not found
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"""
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DIRECTORY_LISTING =\
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"""<html>
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<head><title>%s</title></head>
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<body>
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<a href="%s..">..</a><br>
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%s
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</body>
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</html>
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"""
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DIRECTORY_LINE = '<a href="%s">%s</a><br>'
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def server_socket(host, port):
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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s.bind((host, port))
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s.listen(1)
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return s
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def parse_request(sock):
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data = sock.recv(4096)
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if not data:
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print "Bad request: no data"
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return ''
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line = data[0:data.find("\r")]
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print line
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method, uri, protocol = line.split()
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#headers = data[0:data.find("\r\n\r\n")]
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#print headers
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return uri
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def list_directory(uri):
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entries = os.listdir('.' + uri)
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entries.sort()
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return DIRECTORY_LISTING % (uri, uri, '\n'.join(
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[DIRECTORY_LINE % (e, e) for e in entries]))
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def get_file(path):
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f = open(path)
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try:
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return f.read()
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finally:
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f.close()
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def get_content(uri):
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try:
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path = '.' + uri
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if os.path.isfile(path):
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return (200, get_mime(uri), get_file(path))
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if os.path.isdir(path):
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if(uri.endswith('/')):
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return (200, 'text/html', list_directory(uri))
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else:
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return (301, uri + '/')
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else:
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return (404, uri)
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except IOError, e:
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return (404, e)
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def get_mime(uri):
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return MIME_TYPES.get(os.path.splitext(uri)[1], 'text/plain')
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def send_response(sock, content):
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template = RESPONSE_HEADERS[content[0]]
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data = template % content[1:]
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sock.sendall(data)
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if __name__ == '__main__':
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server = server_socket(HOST, int(PORT))
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print 'starting %s on %s...' % (HOST, PORT)
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try:
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while True:
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sock, client_address = server.accept()
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uri = parse_request(sock)
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if uri:
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content = get_content(uri)
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send_response(sock, content)
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sock.close()
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except KeyboardInterrupt:
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print 'shutting down...'
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server.close()

‎week-05/code/Brian's/week05_slides.key‎

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‎week-05/code/Brian's/week05_slides.pdf‎

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‎week-05/code/socket_serve1.py‎

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#!/usr/bin/env python
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"""
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Example from the HowTo:
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http://docs.python.org/howto/sockets.html
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Then edited by Chris Barker
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"""
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import socket
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#create an INET, STREAMing socket
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serversocket = socket.socket( socket.AF_INET, socket.SOCK_STREAM)
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#bind the socket to localhost, high port
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serversocket.bind(('localhost', 55559),)
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#become a server socket
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serversocket.listen(5)
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# accept a single request
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#while True:
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if True:
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#accept connections from outside
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print "calling accept"
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(clientsocket, address) = serversocket.accept()
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print "accept returned"
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#now do something with the clientsocket
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#in this case, we'll pretend this is a threaded server
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#ct = client_thread(clientsocket)
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#ct.run()
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print "got something:", clientsocket
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print "from address", address
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print clientsocket.recv(1024)
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# now lets send something:
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clientsocket.send("This is some text")
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## put this in your browser while this is running:
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## http://localhost:55557/a_file

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