import urllib, os, sys, re, getopt, select

defaultPB = "http://paste.stgraber.org" #Default pastebin
version = "0.7" #Version number to show in the usage

# Custom urlopener to handle 401's
class pasteURLopener(urllib.FancyURLopener):
    def http_error_401(self, url, fp, errcode, errmsg, headers, data=None):
	return None

#Return the parameters depending of the pastebin used
def getParameters(website, content, user, version, format, title, username, password):
    "Return the parameters array for the selected pastebin"
    params={}
    # pastebin.com v0.50
    if re.search("http://((([a-zA-Z0-9\-_\.]*)(pastebin\.com))|(paste.stgraber.org))", website):
	params['poster'] = user
        params['code2'] = content
	params['version'] = version
	params['parent_pid'] = "" #For reply, "" means homepage (new thread)
	params['format'] = format #The format, for syntax hilighting
	params['paste'] = "Send" 
        params['remember'] = "0" #Do you want a cookie ?
	params['expiry'] = "f" #The expiration, f = forever
	params['regexp'] = "None"
    # pastebin.com v0.60
    elif re.search("http://([a-zA-Z0-9\-_\.]*)1t2\.us", website):
	params['poster'] = user
        params['code2'] = content
        params['parent_pid'] = "" #For reply, "" means homepage (new thread)
	params['format'] = format #The format, for syntax hilighting
	params['paste'] = "Send" 
        params['remember'] = "0" #Do you want a cookie ?
	params['expiry'] = "f" #The expiration, f = forever
	params['title'] = title
	params['username'] = username
	params['password'] = password
	params['regexp'] = "None"
    elif website == "http://pastebin.ca":
	params['name'] = user
        params['content'] = content
	params['type'] = "1" #The expiration, 1 = raw
	params['save'] = "0" #Do you want a cookie ?
	params['s'] = "Submit Post"
	params['regexp'] = '">http://pastebin.ca/(.*)</a></p><p>'
    else:
	sys.exit("Unknown website, please post a bugreport to request this pastebin to be added (" + website + ")")
    return params

# Display usage instructions
def Usage ():
    print "pastebinit v" + version
    print "Required arguments:"
    print "\t-i <filename> (or pipe the text)"
    print "Optional arguments:"
    print "\t-b <pastebin url:default " + defaultPB + ">"
    print "\t-a <author:defaults to system username>"
    print "\t-f <format of paste:default text only>"
    print "Optional arguments supported only by 1t2.us:"
    print "\t-t <title of paste:default is blank>"
    print "\t-u <username> -p <password>"
    sys.exit(0)


# Set defaults
user = os.environ.get('USER')
website = defaultPB
title = ""
format = "text"
username = ""
password = ""
filename = ""
content = ""

#Check if some datas were passed by pipe, if yes directly assign content
l_r = select.select([sys.stdin], [], [], 0)
try :
    content=l_r[0][0].read()
    filename="-"
except:
    filename=""

# Check number of arguments
if len(sys.argv) == 1 and filename == "":
    Usage()
    sys.exit(1)


# Get options
try:
    optlist, list = getopt.getopt(sys.argv[1:], 'i:f:b:a:t:u:p:')
except getopt.GetoptError:
    print "Invalid arguments!\n"
    Usage()
    sys.exit(1)

# Iterate through options
for opt in optlist:
    if opt[0] == "-i":
	filename = opt[1]
    elif opt[0] == "-f":
	format = opt[1]
    elif opt[0] == "-b":
	website = opt[1]
    elif opt[0] == "-a":
	user = opt[1]
    elif opt[0] == "-t":
	title = opt[1]
    elif opt[0] == "-u":
	username = opt[1]
    elif opt[0] == "-p":
	password = opt[1]

#If - is specified as a filename read from stdin, otherwise load the specified file.
if filename == "":
    print "Error no filename specified!\n"
    Usage()
    sys.exit(1)
elif filename == "-" and content == "":
    content = sys.stdin.read()
elif content == "":
    try:
        f = open(filename)
        content = f.read()
        f.close()
    except:
        sys.exit("Unable to read from: " + filename)

params = getParameters(website, content, user, version, format, title, username, password) #Get the parameters array
reLink = params['regexp'] #Extract the regexp
params['regexp'] = None #Remove the regexp from what will be sent
params = urllib.urlencode(params) #Convert to a format usable with the HTML POST

url_opener = pasteURLopener()
page = url_opener.open(website + '/', params) #Send the informations and be redirected to the final page

try:
    if reLink != "None": #Check if we have to apply a regexp
	print website + "/" + re.split(reLink, page.read())[1] #Print the result of the Regexp
    else:
	print page.url #Get the final page and show the url
except:
    sys.exit("Unable to read or parse the result page, it could be a server timeout or a change server side, try with another pastebin.")