/usr/share/gforge/plugins/moinmoin/lib/fusionforge.py.fg_template is in fusionforge-plugin-moinmoin 5.3.2+20141104-3+deb8u3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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"""
MoinMoin - FusionForge session cookie authentication
@copyright: 2005 MoinMoin:AlexanderSchremmer (Thanks to Spreadshirt)
@copyright: 2011 Roland Mas
@license: GNU GPL, see COPYING for details.
"""
import base64
import hashlib
import hmac
import logging
import psycopg2
import re
import string
import subprocess
import urllib
from MoinMoin import user
from MoinMoin.auth import _PHPsessionParser, BaseAuth
perm_name = "plugin_moinmoin_access"
perm_map = { "Admins": 3,
"Writers": 2,
"Readers": 1 }
class FusionForgeError(Exception):
def __init__(self, msg):
Exception.__init__(self, msg)
self.msg = msg
def __str__(self):
return "%s\n" % self.msg
class FusionForgeLink():
def get_config(self, varname, secname='core'):
if secname not in self.cachedconfig:
self.cachedconfig[secname] = {}
if varname not in self.cachedconfig[secname]:
self.cachedconfig[secname][varname] = \
subprocess.Popen(["@BINARY_PATH@/forge_get_config",
varname, secname],
stdout=subprocess.PIPE).communicate()[0].rstrip('\n')
return self.cachedconfig[secname][varname]
def __init__(self, cookies=['session_ser'], autocreate=True):
self.cachedconfig = {}
self.database_host = self.get_config('database_host')
self.database_name = self.get_config('database_name')
self.database_user = self.get_config('database_user')
self.database_port = self.get_config('database_port')
self.database_password = self.get_config('database_password')
if (self.database_host != ''):
self._conn = psycopg2.connect(database=self.database_name,
user=self.database_user,
port=self.database_port,
password=self.database_password,
host=self.database_host)
else:
self._conn = psycopg2.connect(database=self.database_name,
user=self.database_user,
port=self.database_port,
password=self.database_password)
# We never want to start transactions, all accesses here are read-only
# anyway.
self._conn.set_isolation_level \
(psycopg2.extensions.ISOLATION_LEVEL_AUTOCOMMIT)
logging.debug ("FusionForgeLink: __init__ done")
def __del__(self):
self._conn.close ()
class FusionForgeSessionAuth(BaseAuth):
""" FusionForge session cookie authentication """
name = 'fusionforge_session'
logout_possible = False
def __init__(self, cookies=['session_ser'], autocreate=True):
""" @param cookie: Names of the cookies to parse.
"""
BaseAuth.__init__(self)
self.cookies = cookies
self.autocreate = autocreate
self.fflink = FusionForgeLink()
self.session_key = self.fflink.get_config('session_key')
# List super users (Forge admins)
conn = self.fflink._conn
cur = conn.cursor()
cur.execute("""SELECT distinct(u.user_name)
FROM users u,
pfo_user_role pur,
pfo_role pr,
pfo_role_setting prs
WHERE u.user_id = pur.user_id
AND pur.role_id = pr.role_id
AND pr.role_id = prs.role_id
AND prs.section_name='forge_admin'
AND prs.perm_val = 1""")
self.admins = []
if cur.rowcount > 0:
self.admins = [r[0] for r in cur]
logging.debug ("FusionForgeSessionAuth: admins=%s", (self.admins,))
# List projects
cur.execute("""SELECT g.unix_group_name
FROM groups g, group_plugin gp, plugins p
WHERE g.group_id = gp.group_id
AND gp.plugin_id = p.plugin_id
AND p.plugin_name = 'moinmoin'""")
self.projects = []
if cur.rowcount:
self.projects = [r[0] for r in cur]
logging.debug ("FusionForgeSessionAuth: projects=%s", (self.projects,))
def get_moinmoin_acl_string(self, project_name):
conn = self.fflink._conn
cur = conn.cursor()
# Get perm setting for anonymous users
query = """SELECT prs.perm_val
FROM pfo_role_setting prs, groups
WHERE prs.role_id = 1
AND prs.section_name = '%s'
AND groups.unix_group_name = '%s'
AND prs.ref_id = groups.group_id""" \
% (perm_name, project_name)
val = cur.execute(query)
val = cur.fetchone()
if val:
anon_perm = [k for k, v in perm_map.iteritems() if v == val[0]]
if anon_perm:
anon_perm = anon_perm[0]
else:
anon_perm = None
rights_dict = \
{ 'Admins': 'read,write,delete,revert,admin',
'Writers': 'read,write,delete,revert',
'Readers': 'read' }
rights = [ 'FFSiteAdminsGroup:read,write,delete,revert,admin' ] \
+ map (lambda (g, right):
'FFProject_%s_%sGroup:%s' % (project_name, g, right),
rights_dict.iteritems ())
if anon_perm and rights_dict.has_key(anon_perm):
rights.append ('All:' + rights_dict[anon_perm])
else:
rights.append ('All:')
logging.debug ("FusionForgeSessionAuth.get_moinmoin_acl_string: %s",
(rights,))
return string.join (rights)
def get_permission_entries (self, project_name, perm, user_name = None):
conn = self.fflink._conn
cur = conn.cursor()
if user_name:
ucond = "u.user_name = '%s'" % (user_name)
else:
ucond = "TRUE"
# ??? query should also include user if permission is granted to
# authenticated non-members.
query = """SELECT DISTINCT(u.user_name)
FROM users u, pfo_user_role pur, pfo_role pr,
pfo_role_setting prs, groups
WHERE %s
AND ((u.user_id = pur.user_id
AND pur.role_id = pr.role_id
AND pr.role_id = prs.role_id)
OR prs.role_id = 2)
AND prs.section_name = '%s'
AND groups.unix_group_name = '%s'
AND prs.perm_val = %d
AND prs.ref_id = groups.group_id""" \
% (ucond, perm_name, project_name, perm_map[perm])
logging.debug ("get_perm_entries: " + query)
cur.execute(query)
result = []
if cur.rowcount > 0:
result = [u[0] for u in cur]
logging.debug (" -> %s " % (result,))
return result
def check_permission (self, project_name, perm, user_name):
return len(self.get_permission_entries \
(project_name, perm, user_name)) > 0
def request(self, request, user_obj, **kw):
cookies = kw.get('cookie')
if cookies is None or cookies == {}:
return None, False
for cookiename in cookies:
if cookiename not in self.cookies:
continue
cookievalue = \
urllib.unquote(cookies[cookiename]).decode('iso-8859-1')
m = re.search('^([A-Za-z0-9+/=]+)!([A-Za-z0-9+/=]+)$', cookievalue)
if m is None:
continue
(sserial, shash) = m.group(1, 2)
sdata = base64.b64decode(sserial)
shash = base64.b64decode(shash)
H = hmac.new(self.session_key, sdata, hashlib.sha256)
if H.digest() != shash:
continue
m = re.search('(.*)<(.*)<(.*)<(.*)<(.*)', sdata)
if m is None:
continue
(time, user_id, ip, nonce, user_agent) = m.group(1, 2, 3, 4, 5)
conn = self.fflink._conn
cur = conn.cursor()
cur.execute("""SELECT user_name, realname
FROM users WHERE user_id=%s""", [user_id])
(loginname, realname) = cur.fetchone()
cur.close()
# MoinMoin doesn't enforce unicity of realnames
u = user.User(request, name=loginname, auth_username=loginname,
auth_method=self.name)
if u and self.autocreate:
u.create_or_update(True)
if u and u.valid:
self.auth_user = u
return u, False
self.auth_user = None
return None, False
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