#!/usr/bin/python

import cgi, re, time, os, string;
import cgitb;cgitb.enable(display=0, logdir="/tmp");


#intimate objects server program
#version 5
#by jofish

#has three ways to use it:

#returns seconds since file generated plus one.  returns zero if no such file
#/cgi-bin/io/gen5.py?me=me&you=you&shared=sharephrase&do=timesince
#returns mytimesince /ntheytimesince

#to leave a message for the other person
#/cgi-bin/io/gen5.py?me=me&you=you&shared=sharephrase&do=post&content=contenthere
#returns mytimesince /nOK | BAD

#to see what message was left for me
#/cgi-bin/io/gen5.py?me=me&you=you&shared=sharephrase&do=read
#returns mytimesince /ncontent-of-me

form=cgi.FieldStorage()
print "Content-type: text/html\n"
if ((re.search('[^a-zA-Z0-9\-]',form["me"].value+form["you"].value+form["shared"].value)==None)):
    if os.path.isfile('/var/www/io/inout/'+form["shared"].value+'/'+form["me"].value): #always print my time
            print (int(time.time())-os.stat('/var/www/io/inout/'+form["shared"].value+'/'+form["me"].value).st_mtime+1),
    else: print "0",    
    if (form["do"].value=='timesince'):
        if os.path.isfile('/var/www/io/inout/'+form["shared"].value+'/'+form["you"].value):
            print (int(time.time())-os.stat('/var/www/io/inout/'+form["shared"].value+'/'+form["you"].value).st_mtime+1),
        else:
            print "0",    
    elif (form["do"].value=='post'):
        if ((re.search('[^a-zA-Z0-9\- ]',form["content"].value)==None)):
            if not os.path.exists('/var/www/io/inout/'+form["shared"].value+'/'):
                os.mkdir('/var/www/io/inout/'+form["shared"].value+'/',755)
            myfile=open('/var/www/io/inout/'+form["shared"].value+'/'+form["you"].value,'w');
            myfile.write(form["content"].value);
            myfile.close;
            print "OK",
        else: print "BADCONTENT",
    elif (form["do"].value=='read'):
        if os.path.isfile('/var/www/io/inout/'+form["shared"].value+'/'+form["me"].value):
            myfile=open('/var/www/io/inout/'+form["shared"].value+'/'+form["me"].value)
            for line in myfile: print line
            myfile.close()
        else:print "NOSUCHFILE",
    else:print "BADINSTRUCTION",
else: #they had an invalid character in their names or sharephrase
	print "BADFILENAME",