WEB邮件程序

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Python

auth.py：源码内容

							# Authentication module for DogMail
import md5, shelve, time, os, string
from bobomailrc import *
from base64 import encodestring
from mimetools import choose_boundary
import dumbdbm #XXX: fix anydbm for some systems
class AuthDB(shelve.Shelf):
    def __init__(self, fn=auth_db_filename):
        shelve.Shelf.__init__(self, dumbdbm.open(fn))
	#os.chmod(fn, 384)
        self.expire()
	
    def add(self, user):
		self[user["hash"]] = user
    def get(self, auth):
		return self[auth]
    def expire(self):
		for x in self.keys():
			if self[x]["expires"] < time.time(): del self[x]
authdb = AuthDB()
class Authentication:
	
	def __init__(self, db=authdb):
		self.db = db
	def relogin(self, auth_key):
		try:
			user = self.db.get(auth_key)
			if user["remote"] == os.environ.get("REMOTE_IP", None):
			#if self.check(user["host"], user["userid"], user["password"]):
				self.acquire(user)
				return true
		except: pass
		return false
	def acquire(self, user):
		for key, value in user.items():
			self.__dict__[key] = value
	def check(self, host, userid, password): return false
	def login(self, host, userid, password):
		if self.check(host, userid, password):
			try:
				hash = md5.new()
				hash.update(userid)
				hash.update(password)
				hash.update(choose_boundary())
				key = map(hex, map(ord, hash.digest()))
				key = string.replace(string.join(key, ""), "0x", "")
				user = {
                    "host": host,
                    "userid": userid,
                    "password": password,
                    "hash": key,
                    "remote": os.environ.get("REMOTE_IP", None),
                    "expires": time.time() + max_session_length
                    }
				self.db.add(user)
				self.acquire(user)
				return true
			except: pass
		return false
	def logout(self):
		try: del self.db[self.hash]
		except: pass
class SimpleAuthentication(Authentication):
	atable = {
		"guest": "guest"
		}
	def check(self, host, userid, password):
		if self.atable.get(userid, None) == password:
			return true
		else:
			return false
from poplib import POP3
class POP3Authentication(Authentication):
	def check(self, host, userid, password):
		try:
			self.con = POP3(host)
			self.con.user(userid)
			self.con.pass_(password)
			self.con.quit()
			return true
		except: return false
		
#XXX TODO:
#class APOP3Authentication(Authentication): pass
#class PasswdFileAuthentication(Authentication): pass
#class HtAccessAthentication(Authentication): pass
#if __name__ == "__main__":
#	a = POP3Authentication()
#	print a.login("localhost", "guest", "guest")
	

						