[p4] Execute P4 command in CGI from within Apache Web server

Thu Mar 29 10:14:28 PST 2007

I have a Python script which runs fine standalone. But it couldn't be
executed correctly when it's run as CGI within a Web server - Apache Web
server to be exact. The script lists the submitted changes in a
particular directory of depot. It seems to me that, when executed as CGI
from Web page, the stdout from the command is lost somehow. As a test -
if I changed the p4 user name in the Global Option to be a non-existent
user name, the stderr is piping back, printing out something like "
Access for user 'someone' has not been enabled by 'p4 protect'" in the
page. 

For your reference I have the simplified code there. Can anyone help
please? 

#!C:\python24\python.exe

import cgi, os, sys, string, re, time

debugFlag = True

def debug(msg):

    """ Prints out debug messages according to the debugFlag setting """

    if debugFlag:

        print msg

def execute(cmd):

    debug("cmd is %s" % cmd)

    try:

        output = os.popen4(cmd)

        if not output[1]:

            debug("Unable to run '%s'" % cmd)

        return output[1]     

    except OSError, msg:

        debug(msg)

if __name__ == '__main__':

    cmd = "%s %s %s %s" % ("p4", "-ugpan", "changes", "//depot/dev/...")

    print "Content-Type: text/html"

    print

    print '<html><body>'

    lines = execute(cmd).readlines()

    for i in range(0, len(lines), 1) :

        debug("line is %s" % lines[i])

    print '</body></html>'

Thanks,

Greg