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webuser.py
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# -*- coding: utf-8 -*-
##
## $Id$
##
## This file is part of CDS Invenio.
## Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 CERN.
##
## CDS Invenio is free software; you can redistribute it and/or
## modify it under the terms of the GNU General Public License as
## published by the Free Software Foundation; either version 2 of the
## License, or (at your option) any later version.
##
## CDS Invenio is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with CDS Invenio; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
"""
This file implements all methods necessary for working with users and
sessions in CDS Invenio. Contains methods for logging/registration
when a user log/register into the system, checking if it is a guest
user or not.
At the same time this presents all the stuff it could need with
sessions managements, working with websession.
It also contains Apache-related user authentication stuff.
"""
__revision__ = "$Id$"
try:
from mod_python import apache
except ImportError:
pass
import marshal
from zlib import compress, decompress
from socket import gethostbyname
import time
import os
import crypt
import socket
import smtplib
import re
import random
import base64
from invenio.config import \
CFG_ACCESS_CONTROL_LEVEL_ACCOUNTS, \
CFG_ACCESS_CONTROL_LEVEL_GUESTS, \
CFG_ACCESS_CONTROL_LEVEL_SITE, \
CFG_ACCESS_CONTROL_LIMIT_REGISTRATION_TO_DOMAIN, \
CFG_ACCESS_CONTROL_NOTIFY_ADMIN_ABOUT_NEW_ACCOUNTS, \
CFG_ACCESS_CONTROL_NOTIFY_USER_ABOUT_NEW_ACCOUNT, \
CFG_APACHE_GROUP_FILE, \
CFG_APACHE_PASSWORD_FILE, \
adminemail, \
cdslang, \
cdsname, \
cdsnameintl, \
supportemail, \
sweburl, \
CFG_TMPDIR, \
CFG_VERSION, \
weburl
from invenio import session, websession
from invenio.dbquery import run_sql, OperationalError, \
serialize_via_marshal, deserialize_via_marshal
from invenio.websession import pSession, pSessionMapping
from invenio.session import SessionError
from invenio.access_control_config import *
from invenio.access_control_admin import acc_find_user_role_actions, acc_get_role_id
from invenio.access_control_mailcookie import mail_cookie_create_mail_activation
from invenio.access_control_firerole import acc_firerole_check_user, load_role_definition
from invenio.messages import gettext_set_language
from invenio.mailutils import send_email
from invenio.errorlib import register_exception
from invenio.webgroup_dblayer import get_groups
from invenio.external_authentication import InvenioWebAccessExternalAuthError
import invenio.template
tmpl = invenio.template.load('websession')
re_invalid_nickname = re.compile(""".*[,'@]+.*""")
# pylint: disable-msg=C0301
def createGuestUser():
"""Create a guest user , insert into user null values in all fields
createGuestUser() -> GuestUserID
"""
if CFG_ACCESS_CONTROL_LEVEL_GUESTS == 0:
try:
return run_sql("insert into user (email, note) values ('', '1')")
except OperationalError:
return None
else:
try:
return run_sql("insert into user (email, note) values ('', '0')")
except OperationalError:
return None
def page_not_authorized(req, referer='', uid='', text='', navtrail='', ln=cdslang,
navmenuid=""):
"""Show error message when user is not authorized to do something.
@param referer: in case the displayed message propose a login link, this
is the url to return to after logging in.
@param uid: the uid of the user. If not specified it is guessed from req.
@param text: the message to be displayed. If not specified it will be
guessed from the context.
"""
from invenio.webpage import page
_ = gettext_set_language(ln)
if not CFG_ACCESS_CONTROL_LEVEL_SITE:
title = CFG_WEBACCESS_MSGS[5]
if not uid:
uid = getUid(req)
try:
res = run_sql("SELECT email FROM user WHERE id=%s AND note=1" % uid)
if res and res[0][0]:
if text:
body = text
else:
body = "%s %s" % (CFG_WEBACCESS_WARNING_MSGS[9] % res[0][0],
("%s %s" % (CFG_WEBACCESS_MSGS[0] % referer, CFG_WEBACCESS_MSGS[1])))
else:
if text:
body = text
else:
if CFG_ACCESS_CONTROL_LEVEL_GUESTS == 1:
body = CFG_WEBACCESS_MSGS[3]
else:
body = CFG_WEBACCESS_WARNING_MSGS[4] + CFG_WEBACCESS_MSGS[2]
except OperationalError, e:
body = _("Database problem") + ': ' + str(e)
elif CFG_ACCESS_CONTROL_LEVEL_SITE == 1:
title = CFG_WEBACCESS_MSGS[8]
body = "%s %s" % (CFG_WEBACCESS_MSGS[7], CFG_WEBACCESS_MSGS[2])
elif CFG_ACCESS_CONTROL_LEVEL_SITE == 2:
title = CFG_WEBACCESS_MSGS[6]
body = "%s %s" % (CFG_WEBACCESS_MSGS[4], CFG_WEBACCESS_MSGS[2])
return page(title=title,
uid=getUid(req),
body=body,
navtrail=navtrail,
req=req,
navmenuid=navmenuid)
def getApacheUser(req):
"""Return the ApacheUser taking it from the cookie of the request."""
sm = session.MPSessionManager(pSession, pSessionMapping())
try:
s = sm.get_session(req)
except SessionError:
sm.revoke_session_cookie (req)
s = sm.get_session(req)
apache_user = s.getApacheUser()
sm.maintain_session(req, s)
return apache_user
def getUid (req):
"""Return user ID taking it from the cookie of the request.
Includes control mechanism for the guest users, inserting in
the database table when need be, raising the cookie back to the
client.
User ID is set to 0 when client refuses cookie or we are in the
read-only site operation mode.
User ID is set to -1 when we are in the permission denied site
operation mode.
getUid(req) -> userId
"""
if CFG_ACCESS_CONTROL_LEVEL_SITE == 1: return 0
if CFG_ACCESS_CONTROL_LEVEL_SITE == 2: return -1
guest = 0
sm = session.MPSessionManager(pSession, pSessionMapping())
try:
s = sm.get_session(req)
except SessionError:
sm.revoke_session_cookie (req)
s = sm.get_session(req)
userId = s.getUid()
if userId == -1: # first time, so create a guest user
s.setUid(createGuestUser())
userId = s.getUid()
guest = 1
sm.maintain_session(req, s)
if guest == 0:
guest = isGuestUser(userId)
if guest:
if CFG_ACCESS_CONTROL_LEVEL_GUESTS == 0:
return userId
elif CFG_ACCESS_CONTROL_LEVEL_GUESTS >= 1:
return -1
else:
res = run_sql("SELECT note FROM user WHERE id=%s" % userId)
if CFG_ACCESS_CONTROL_LEVEL_ACCOUNTS == 0:
return userId
elif CFG_ACCESS_CONTROL_LEVEL_ACCOUNTS >= 1 and res and res[0][0] in [1, "1"]:
return userId
else:
return -1
def setApacheUser(req, apache_user):
"""It sets the apache_user into the session, and raise the cookie to the client.
"""
sm = session.MPSessionManager(pSession, pSessionMapping())
try:
s = sm.get_session(req)
except SessionError:
sm.revoke_session_cookie(req)
s = sm.get_session(req)
s.setApacheUser(apache_user)
sm.maintain_session(req, s)
return apache_user
def setUid(req, uid):
"""It sets the userId into the session, and raise the cookie to the client.
"""
sm = session.MPSessionManager(pSession, pSessionMapping())
try:
s = sm.get_session(req)
except SessionError:
sm.revoke_session_cookie(req)
s = sm.get_session(req)
s.setUid(uid)
sm.maintain_session(req, s)
return uid
def get_user_info(uid, ln=cdslang):
"""Get infos for a given user.
@param uid: user id (int)
@return tuple: (uid, nickname, display_name)
"""
_ = gettext_set_language(ln)
query = """SELECT id, nickname
FROM user
WHERE id=%i"""
res = run_sql(query%uid)
if res:
if res[0]:
user = list(res[0])
if user[1]:
user.append(user[1])
else:
user[1] = str(user[0])
user.append(_("user") + ' #' + str(user[0]))
return tuple(user)
return (uid, '', _("N/A"))
def isGuestUser(uid):
"""It Checks if the userId corresponds to a guestUser or not
isGuestUser(uid) -> boolean
"""
out = 1
try:
res = run_sql("select email from user where id=%s", (uid,))
if res:
if res[0][0]:
out = 0
except OperationalError:
pass
return out
def isUserSubmitter(user_info):
"""Return True if the user is a submitter for something; False otherwise."""
u_email = get_email(user_info['uid'])
res = run_sql("select email from sbmSUBMISSIONS where email=%s", (u_email,))
return len(res) > 0
def isUserReferee(user_info):
"""Return True if the user is a referee for something; False otherwise."""
from invenio.access_control_engine import acc_authorize_action
res = run_sql("select sdocname from sbmDOCTYPE")
for row in res:
doctype = row[0]
categ = "*"
(auth_code, auth_message) = acc_authorize_action(user_info, "referee", doctype=doctype, categ=categ)
if auth_code == 0:
return 1
res2 = run_sql("select sname from sbmCATEGORIES where doctype=%s", (doctype,))
for row2 in res2:
categ = row2[0]
(auth_code, auth_message) = acc_authorize_action(user_info, "referee", doctype=doctype, categ=categ)
if auth_code == 0:
return 1
return 0
def isUserAdmin(user_info):
"""Return True if the user has some admin rights; False otherwise."""
return acc_find_user_role_actions(user_info)
def nickname_valid_p(nickname):
"""Check whether wanted NICKNAME supplied by the user is valid.
At the moment we just check whether it is not empty, does not
contain blanks or @, is not equal to `guest', etc.
This check relies on re_invalid_nickname regexp (see above)
Return 1 if nickname is okay, return 0 if it is not.
"""
if nickname and \
not(nickname.startswith(' ') or nickname.endswith(' ')) and \
nickname.lower() != 'guest':
if not re_invalid_nickname.match(nickname):
return 1
return 0
def email_valid_p(email):
"""Check whether wanted EMAIL address supplied by the user is valid.
At the moment we just check whether it contains '@' and whether
it doesn't contain blanks. We also check the email domain if
CFG_ACCESS_CONTROL_LIMIT_REGISTRATION_TO_DOMAIN is set.
Return 1 if email is okay, return 0 if it is not.
"""
if (email.find("@") <= 0) or (email.find(" ") > 0):
return 0
elif CFG_ACCESS_CONTROL_LIMIT_REGISTRATION_TO_DOMAIN:
if not email.endswith(CFG_ACCESS_CONTROL_LIMIT_REGISTRATION_TO_DOMAIN):
return 0
return 1
def confirm_email(email):
"""Confirm the email. It returns None when there are problems, otherwise
it return the uid involved."""
if CFG_ACCESS_CONTROL_LEVEL_ACCOUNTS == 0:
activated = 1
elif CFG_ACCESS_CONTROL_LEVEL_ACCOUNTS == 1:
activated = 0
elif CFG_ACCESS_CONTROL_LEVEL_ACCOUNTS >= 2:
return -1
run_sql('UPDATE user SET note=%s where email=%s', (activated, email))
res = run_sql('SELECT id FROM user where email=%s', (email, ))
if res:
if CFG_ACCESS_CONTROL_NOTIFY_ADMIN_ABOUT_NEW_ACCOUNTS:
sendNewAdminAccountWarning(email, adminemail)
return res[0][0]
else:
return None
def registerUser(req, email, passw, nickname, register_without_nickname=False,
login_method=None, ln=cdslang):
"""Register user with the desired values of NICKNAME, EMAIL and
PASSW.
If REGISTER_WITHOUT_NICKNAME is set to True, then ignore
desired NICKNAME and do not set any. This is suitable for
external authentications so that people can login without
having to register an internal account first.
Return 0 if the registration is successful, 1 if email is not
valid, 2 if nickname is not valid, 3 if email is already in the
database, 4 if nickname is already in the database, 5 when
users cannot register themselves because of the site policy, 6 when the
site is having problem contacting the user.
If login_method is None or is equal to the key corresponding to local
authentication, then CFG_ACCESS_CONTROL_LEVEL_ACCOUNTS is taken
in account for deciding the behaviour about registering.
"""
# is email valid?
email = email.lower()
if not email_valid_p(email):
return 1
_ = gettext_set_language(ln)
# is email already taken?
res = run_sql("SELECT email FROM user WHERE email=%s", (email,))
if len(res) > 0:
return 3
if register_without_nickname:
# ignore desired nick and use default empty string one:
nickname = ""
else:
# is nickname valid?
if not nickname_valid_p(nickname):
return 2
# is nickname already taken?
res = run_sql("SELECT nickname FROM user WHERE nickname=%s", (nickname,))
if len(res) > 0:
return 4
activated = 1 # By default activated
if not login_method or not CFG_EXTERNAL_AUTHENTICATION[login_method][0]: # local login
if CFG_ACCESS_CONTROL_LEVEL_ACCOUNTS >= 2:
return 5
elif CFG_ACCESS_CONTROL_NOTIFY_USER_ABOUT_NEW_ACCOUNT:
activated = 2 # Email confirmation required
elif CFG_ACCESS_CONTROL_LEVEL_ACCOUNTS >= 1:
activated = 0 # Administrator confirmation required
if CFG_ACCESS_CONTROL_NOTIFY_USER_ABOUT_NEW_ACCOUNT:
address_activation_key = mail_cookie_create_mail_activation(email)
ip_address = req.connection.remote_host or req.connection.remote_ip
try:
if not send_email(supportemail, email, _("Account registration at %s") % cdsnameintl.get(ln, cdsname),
tmpl.tmpl_account_address_activation_email_body(email,
address_activation_key, ip_address, ln)):
return 1
except (smtplib.SMTPException, socket.error):
return 6
# okay, go on and register the user:
user_preference = get_default_user_preferences()
uid = run_sql("INSERT INTO user (nickname, email, password, note, settings, last_login) "
"VALUES (%s,%s,AES_ENCRYPT(email,%s),%s,%s, NOW())",
(nickname, email, passw, activated, serialize_via_marshal(user_preference)))
if activated == 1: # Ok we consider the user as logged in :-)
setUid(req, uid)
return 0
def updateDataUser(uid, email, nickname):
"""
Update user data. Used when a user changed his email or password
or nickname.
"""
email = email.lower()
if email == 'guest':
return 0
if CFG_ACCESS_CONTROL_LEVEL_ACCOUNTS < 2:
run_sql("update user set email=%s where id=%s", (email, uid))
if nickname and nickname != '':
run_sql("update user set nickname=%s where id=%s", (nickname, uid))
return 1
def updatePasswordUser(uid, password):
"""Update the password of a user."""
if CFG_ACCESS_CONTROL_LEVEL_ACCOUNTS < 3:
run_sql("update user set password=AES_ENCRYPT(email,%s) where id=%s", (password, uid))
return 1
def loginUser(req, p_un, p_pw, login_method):
"""It is a first simple version for the authentication of user. It returns the id of the user,
for checking afterwards if the login is correct
"""
# p_un passed may be an email or a nickname:
p_email = get_email_from_username(p_un)
# go on with the old stuff based on p_email:
if not CFG_EXTERNAL_AUTHENTICATION.has_key(login_method):
return ([], p_email, p_pw, 12)
if CFG_EXTERNAL_AUTHENTICATION[login_method][0]: # External Authenthication
try:
p_email = CFG_EXTERNAL_AUTHENTICATION[login_method][0].auth_user(p_email, p_pw, req)
if p_email:
p_email = p_email.lower()
else:
raise InvenioWebAccessExternalAuthError
except InvenioWebAccessExternalAuthError:
return([], p_email, p_pw, 15)
if p_email: # Authenthicated externally
query_result = run_sql("SELECT id from user where email=%s", (p_email,))
if not query_result: # First time user
p_pw_local = int(random.random() * 1000000)
p_nickname = ''
if CFG_EXTERNAL_AUTHENTICATION[login_method][0].enforce_external_nicknames:
try: # Let's discover the external nickname!
p_nickname = CFG_EXTERNAL_AUTHENTICATION[login_method][0].fetch_user_nickname(p_email, p_pw, req)
except (AttributeError, NotImplementedError):
pass
res = registerUser(req, p_email, p_pw_local, p_nickname,
register_without_nickname=p_nickname == '',
login_method=login_method)
if res == 4 or res == 2: # The nickname was already taken
res = registerUser(req, p_email, p_pw_local, '',
register_without_nickname=True,
login_method=login_method)
elif res == 0: # Everything was ok, with or without nickname.
query_result = run_sql("SELECT id from user where email=%s", (p_email,))
elif res == 6: # error in contacting the user via email
return([], p_email, p_pw_local, 19)
else:
return([], p_email, p_pw_local, 13)
try:
groups = CFG_EXTERNAL_AUTHENTICATION[login_method][0].fetch_user_groups_membership(p_email, p_pw, req)
# groups is a dictionary {group_name : group_description,}
new_groups = {}
for key, value in groups.items():
new_groups[key + " [" + str(login_method) + "]"] = value
groups = new_groups
except (AttributeError, NotImplementedError):
pass
except InvenioWebAccessExternalAuthError:
return([], p_email, p_pw, 16)
else: # Groups synchronization
if groups != 0:
userid = query_result[0][0]
from invenio.webgroup import synchronize_external_groups
synchronize_external_groups(userid, groups, login_method)
user_prefs = get_user_preferences(query_result[0][0])
if CFG_ACCESS_CONTROL_LEVEL_ACCOUNTS >= 4:
# Let's prevent the user to switch login_method
if user_prefs.has_key("login_method") and \
user_prefs["login_method"] != login_method:
return([], p_email, p_pw, 11)
user_prefs["login_method"] = login_method
# Cleaning external settings
for key in user_prefs.keys():
if key.startswith('EXTERNAL_'):
del user_prefs[key]
try:
# Importing external settings
new_prefs = CFG_EXTERNAL_AUTHENTICATION[login_method][0].fetch_user_preferences(p_email, p_pw, req)
for key, value in new_prefs.items():
user_prefs['EXTERNAL_' + key] = value
except (AttributeError, NotImplementedError):
pass
except InvenioWebAccessExternalAuthError:
return([], p_email, p_pw, 16)
# Storing settings
set_user_preferences(query_result[0][0], user_prefs)
else:
return ([], p_un, p_pw, 10)
else: # Internal Authenthication
if not p_pw:
p_pw = ''
query_result = run_sql("SELECT id,email,note from user where email=%s and password=AES_ENCRYPT(email,%s)", (p_email, p_pw,))
if query_result:
#FIXME drop external groups and settings
note = query_result[0][2]
if note == '1': # Good account
preferred_login_method = get_user_preferences(query_result[0][0])['login_method']
p_email = query_result[0][1].lower()
if login_method != preferred_login_method:
if CFG_EXTERNAL_AUTHENTICATION.has_key(preferred_login_method):
return ([], p_email, p_pw, 11)
elif note == '2': # Email address need to be confirmed by user
return ([], p_email, p_pw, 17)
elif note == '0': # Account need to be confirmed by administrator
return ([], p_email, p_pw, 18)
else:
return ([], p_email, p_pw, 14)
# Login successful! Updating the last access time
run_sql("UPDATE user SET last_login=NOW() WHERE email=%s", (p_email, ))
return (query_result, p_email, p_pw, 0)
def drop_external_settings(userId):
"""Drop the external (EXTERNAL_) settings of userid."""
prefs = get_user_preferences(userId)
for key in prefs.keys():
if key.startswith('EXTERNAL_'):
del prefs[key]
set_user_preferences(userId, prefs)
def logoutUser(req):
"""It logout the user of the system, creating a guest user.
"""
getUid(req)
sm = session.MPSessionManager(pSession, pSessionMapping())
try:
s = sm.get_session(req)
except SessionError:
sm.revoke_session_cookie(req)
s = sm.get_session(req)
id1 = createGuestUser()
s.setUid(id1)
sm.maintain_session(req, s)
return id1
def username_exists_p(username):
"""Check if USERNAME exists in the system. Username may be either
nickname or email.
Return 1 if it does exist, 0 if it does not.
"""
if username == "":
# return not exists if asked for guest users
return 0
res = run_sql("SELECT email FROM user WHERE email=%s", (username,)) + \
run_sql("SELECT email FROM user WHERE nickname=%s", (username,))
if len(res) > 0:
return 1
return 0
def emailUnique(p_email):
"""Check if the email address only exists once. If yes, return userid, if not, -1
"""
query_result = run_sql("select id, email from user where email=%s", (p_email,))
if len(query_result) == 1:
return query_result[0][0]
elif len(query_result) == 0:
return 0
return -1
def nicknameUnique(p_nickname):
"""Check if the nickname only exists once. If yes, return userid, if not, -1
"""
query_result = run_sql("select id, nickname from user where nickname=%s", (p_nickname,))
if len(query_result) == 1:
return query_result[0][0]
elif len(query_result) == 0:
return 0
return -1
def update_Uid(req, p_email):
"""It updates the userId of the session. It is used when a guest user is logged in succesfully in the system
with a given email and password
"""
query_ID = int(run_sql("select id from user where email=%s",
(p_email,))[0][0])
setUid(req, query_ID)
return query_ID
def sendNewAdminAccountWarning(newAccountEmail, sendTo, ln=cdslang):
"""Send an email to the address given by sendTo about the new account newAccountEmail."""
_ = gettext_set_language(ln)
sub = _("New account on") + " '%s'" % cdsname
if CFG_ACCESS_CONTROL_LEVEL_ACCOUNTS == 1:
sub += " - " + _("PLEASE ACTIVATE")
body = _("A new account has been created on") + " '%s'" % cdsname
if CFG_ACCESS_CONTROL_LEVEL_ACCOUNTS == 1:
body += _(" and is awaiting activation")
body += ":\n\n"
body += _(" Username/Email") + ": %s\n\n" % newAccountEmail
body += _("You can approve or reject this account request at") + ": %s/admin/webaccess/webaccessadmin.py/manageaccounts\n" % weburl
return send_email(supportemail, sendTo, subject=sub, content=body)
def sendNewUserAccountWarning(newAccountEmail, sendTo, password, ln=cdslang):
"""Send an email to the address given by sendTo about the new account newAccountEmail."""
_ = gettext_set_language(ln)
sub = _("Your account created on") + " '%s'" % cdsname
body = _("You have created a new account on") + " '%s'\n\n" % cdsname
body += _(" Username/Email:") + " %s\n" % newAccountEmail
body += _(" Password:") + " %s\n\n" % ("*" * len(password))
return send_email(supportemail, sendTo, subject=sub, content=body)
def get_email(uid):
"""Return email address of the user uid. Return string 'guest' in case
the user is not found."""
out = "guest"
res = run_sql("SELECT email FROM user WHERE id=%s", (uid,), 1)
if res and res[0][0]:
out = res[0][0].lower()
return out
def get_email_from_username(username):
"""Return email address of the user corresponding to USERNAME.
The username may be either nickname or email. Return USERNAME
untouched if not found in the database or if found several
matching entries.
"""
if username == '':
return ''
out = username
res = run_sql("SELECT email FROM user WHERE email=%s", (username,), 1) + \
run_sql("SELECT email FROM user WHERE nickname=%s", (username,), 1)
if res and len(res) == 1:
out = res[0][0].lower()
return out
#def get_password(uid):
#"""Return password of the user uid. Return None in case
#the user is not found."""
#out = None
#res = run_sql("SELECT password FROM user WHERE id=%s", (uid,), 1)
#if res and res[0][0] != None:
#out = res[0][0]
#return out
def get_nickname(uid):
"""Return nickname of the user uid. Return None in case
the user is not found."""
out = None
res = run_sql("SELECT nickname FROM user WHERE id=%s", (uid,), 1)
if res and res[0][0]:
out = res[0][0]
return out
def get_nickname_or_email(uid):
"""Return nickname (preferred) or the email address of the user uid.
Return string 'guest' in case the user is not found."""
out = "guest"
res = run_sql("SELECT nickname, email FROM user WHERE id=%s", (uid,), 1)
if res and res[0]:
if res[0][0]:
out = res[0][0]
elif res[0][1]:
out = res[0][1].lower()
return out
def create_userinfobox_body(req, uid, language="en"):
"""Create user info box body for user UID in language LANGUAGE."""
if req:
if req.subprocess_env.has_key('HTTPS') \
and req.subprocess_env['HTTPS'] == 'on':
url_referer = sweburl + req.unparsed_uri
else:
url_referer = weburl + req.unparsed_uri
if '/youraccount/logout' in url_referer:
url_referer = ''
else:
url_referer = weburl
try:
return tmpl.tmpl_create_userinfobox(ln=language,
url_referer=url_referer,
guest = isGuestUser(uid),
username = get_nickname_or_email(uid),
submitter = True, # FIXME isUserSubmitter(uid),
referee = True, # FIXME isUserReferee(req),
admin = True # FIXME isUserAdmin(req),
)
except OperationalError:
return ""
def list_registered_users():
"""List all registered users."""
return run_sql("SELECT id,email FROM user where email!=''")
def list_users_in_role(role):
"""List all users of a given role (see table accROLE)
@param role: role of user (string)
@return list of uids
"""
res = run_sql("""SELECT uacc.id_user
FROM user_accROLE uacc JOIN accROLE acc
ON uacc.id_accROLE=acc.id
WHERE acc.name=%s""",
(role,))
if res:
return map(lambda x: int(x[0]), res)
return []
def list_users_in_roles(role_list):
"""List all users of given roles (see table accROLE)
@param role_list: list of roles [string]
@return list of uids
"""
if not(type(role_list) is list or type(role_list) is tuple):
role_list = [role_list]
query = """SELECT DISTINCT(uacc.id_user)
FROM user_accROLE uacc JOIN accROLE acc
ON uacc.id_accROLE=acc.id
"""
query_addons = ""
query_params = ()
if len(role_list) > 0:
query_params = role_list
query_addons = " WHERE "
for role in role_list[:-1]:
query_addons += "acc.name=%s OR "
query_addons += "acc.name=%s"
res = run_sql(query + query_addons, query_params)
if res:
return map(lambda x: int(x[0]), res)
return []
def get_user_preferences(uid):
pref = run_sql("SELECT id, settings FROM user WHERE id=%s", (uid,))
if pref:
try:
return deserialize_via_marshal(pref[0][1])
except:
pass
return get_default_user_preferences() # empty dict mean no preferences
def set_user_preferences(uid, pref):
assert(type(pref) == type({}))
run_sql("UPDATE user SET settings=%s WHERE id=%s",
(serialize_via_marshal(pref), uid))
def get_default_user_preferences():
user_preference = {
'login_method': ''}
for system in CFG_EXTERNAL_AUTHENTICATION.keys():
if CFG_EXTERNAL_AUTHENTICATION[system][1]:
user_preference['login_method'] = system
break
return user_preference
def collect_user_info(req):
"""Given the mod_python request object rec or a uid it returns a dictionary
containing at least the keys uid, nickname, email, groups, plus any external keys in
the user preferences (collected at login time and built by the different
external authentication plugins) and if the mod_python request object is
provided, also the remote_ip, remote_host, referer, agent fields.
If the user is authenticated with Apache should provide also
apache_user and apache_group.
"""
user_info = {
'remote_ip' : '',
'remote_host' : '',
'referer' : '',
'uri' : '',
'agent' : '',
'apache_user' : '',
'apache_group' : [],
'uid' : -1,
'nickname' : '',
'email' : '',
'group' : [],
'guest' : '1'
}
try:
if req is None:
uid = -1
elif type(req) in (type(1), type(1L)):
## req is infact a user identification
uid = req
elif type(req) is dict:
## req is by mistake already a user_info
try:
assert(req.has_key('uid'))
assert(req.has_key('email'))
assert(req.has_key('nickname'))
except AssertionError:
## mmh... misuse of collect_user_info. Better warn the admin!
register_exception(alert_admin=True)
user_info.update(req)
return user_info
else:
uid = getUid(req)
user_info['remote_ip'] = gethostbyname(req.connection.remote_ip)
user_info['remote_host'] = req.connection.remote_host or ''
user_info['referer'] = req.headers_in.get('Referer', '')
user_info['uri'] = req.unparsed_uri or ''
user_info['agent'] = req.headers_in.get('User-Agent', 'N/A')
try:
user_info['apache_user'] = getApacheUser(req)
if user_info['apache_user']:
user_info['apache_group'] = auth_apache_user_in_groups(user_info['apache_user'])
except AttributeError:
pass
user_info['uid'] = uid
user_info['nickname'] = get_nickname(uid) or ''
user_info['email'] = get_email(uid) or ''
user_info['group'] = []
user_info['guest'] = str(isGuestUser(uid))
if uid:
user_info['group'] = [group[1] for group in get_groups(uid)]
prefs = get_user_preferences(uid)
if prefs:
for key, value in prefs.items():
user_info[key.lower()] = value
except Exception, e:
register_exception()
return user_info
## --- follow some functions for Apache user/group authentication
def auth_apache_user_p(user, password, apache_password_file=CFG_APACHE_PASSWORD_FILE):
"""Check whether user-supplied credentials correspond to valid
Apache password data file."""
try:
if not apache_password_file.startswith("/"):
apache_password_file = CFG_TMPDIR + "/" + apache_password_file
dummy, pipe_output = os.popen2(["grep", "^" + user + ":", apache_password_file], 'r')
line = pipe_output.readlines()[0]
password_apache = line.strip().split(":")[1]
except: # no pw found, so return not-allowed status
return False
salt = password_apache[:2]
return crypt.crypt(password, salt) == password_apache
def auth_apache_user_in_groups(user, apache_group_file=CFG_APACHE_GROUP_FILE):
"""Return list of Apache groups to which Apache user belong."""
out = []
try:
if not apache_group_file.startswith("/"):
apache_group_file = CFG_TMPDIR + "/" + apache_group_file
dummy, pipe_output = os.popen2(["grep", user, apache_group_file], 'r')
for line in pipe_output.readlines():
out.append(line.strip().split(":")[0])
except: # no groups found, so return empty list
pass
return out
def http_get_credentials(req):
if req.headers_in.has_key("Authorization"):
try:
s = req.headers_in["Authorization"][6:]
s = base64.decodestring(s)
user, passwd = s.split(":", 1)
except (ValueError, base64.binascii.Error, base64.binascii.Incomplete):
raise apache.SERVER_RETURN, apache.HTTP_BAD_REQUEST
return (user, passwd)
return (None, None)
def http_check_credentials(req, role):
"""Retrieve Apache password and check user credential with the
check_auth function. If this function returns True check if the user
is enabled to the given role. If this is True, return, otherwise
popup a new apache login box.
"""
authorized = False
while True:
if req.headers_in.has_key("Authorization"):
try:
s = req.headers_in["Authorization"][6:]
s = base64.decodestring(s)
user, passwd = s.split(":", 1)
except (ValueError, base64.binascii.Error, base64.binascii.Incomplete):
raise apache.SERVER_RETURN, apache.HTTP_BAD_REQUEST
authorized = auth_apache_user_p(user, passwd)
if authorized:
setApacheUser(req, user)
authorized = acc_firerole_check_user(collect_user_info(req), load_role_definition(acc_get_role_id(role)))
setApacheUser(req, '')
if not authorized:
# note that Opera supposedly doesn't like spaces around "=" below
s = 'Basic realm="%s"' % role
req.err_headers_out["WWW-Authenticate"] = s
raise apache.SERVER_RETURN, apache.HTTP_UNAUTHORIZED
else:
setApacheUser(req, user)
return

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