"A HTTP Push CGI module for Python"
import sys
import cgi
import re
class HTTPPush:
def __init__(self):
parms = cgi.FieldStorage()
self.type = parms.getvalue("pushtype")
if self.type == "event":
print "Content-Type: application/x-dom-event-stream\n"
elif self.type == "multipart":
print "Content-Type: multipart/x-mixed-replace;",
print "boundary=\"bndry\"\n"
# Dump a kb of data to flush browsers
print "--bndry"
elif self.type == "iframe":
print "Content-Type: text/html\n\n"
# Dump a kb of data to flush browsers
# print ""
# print "Inner frame for push"
# print ""
print "\n"*1024
sys.stdout.flush()
def push(self, data):
if self.type == "event":
print "Event: push"
for i in data.split("\n"):
print "data: "+str(i)
print "";
elif self.type == "multipart":
print "Content-Type: text/plain\n"
print data
print "--bndry\n"
elif self.type == "iframe":
data = re.sub("'", "\\'", data);
out = "\n"
# Pad so IE plays nice
if len(out) < 257:
out += "\n" * (257 - len(out))
print out
sys.stdout.flush()