webaccessadmin_lib.py.wml
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webaccessadmin_lib.py.wml
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	## $Id$
	## Administrator interface for WebAccess

	## This file is part of the CERN Document Server Software (CDSware).
	## Copyright (C) 2002 CERN.
	##
	## The CDSware 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.
	##
	## The CDSware 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 CDSware; if not, write to the Free Software Foundation, Inc.,
	## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.

	## read config variables:
	#include "config.wml"
	#include "configbis.wml"

	<protect>## $Id$</protect>
	<protect>## DO NOT EDIT THIS FILE! IT WAS AUTOMATICALLY GENERATED FROM CDSware WML SOURCES.</protect>
	"""CDSware WebAccess Administrator Interface."""

	__lastupdated__ = """<: print `date +"%d %b %Y %H:%M:%S %Z"`; :>"""

	## fill config variables:

	import access_control_engine as acce
	import access_control_admin as acca
	# reload(acce)
	# reload(acca)
	import cgi
	import re

	from bibrank_config import adderrorbox,addadminbox,tupletotable,tupletotable_onlyselected,addcheckboxes,createhiddenform
	from access_control_config import *
	from dbquery import run_sql
	from config import *
	from webpage import page, pageheaderonly, pagefooteronly
	from webuser import getUid, get_email
	from mod_python import apache

	__version__ = "$Id$"


	def index(req, title='', body='', subtitle='', adminarea=2, authorized=0):
	"""main function to show pages for webaccessadmin.

	1. if user not logged in and administrator, show the mustlogin page

	2. if used without body argument, show the startpage

	3. show admin page with title, body, subtitle and navtrail.

	adminarea - number codes that tell what extra info to put in the navtrail
	0 - nothing extra
	1 - add Delegate Rights
	2 - add Manage WebAccess
	maybe add:
	3: role admin
	4: action admin
	5: user area
	6: reset area

	authorized - if 1, don't check if the user is allowed to be webadmin """

	navtrail_previous_links = """<a class=navtrail href="%s/admin/">Admin Area</a> > <a class=navtrail href="%s/admin/webaccess/">WebAccess Admin</a> """ % (weburl, weburl)

	if body:
	if adminarea == 1: navtrail_previous_links += '> <a class=navtrail href=%s/admin/webaccess/webaccessadmin.py/delegate_startarea>Delegate Rights</a> ' % (weburl, )
	if adminarea >= 2: navtrail_previous_links += '> <a class=navtrail href=%s/admin/webaccess/webaccessadmin.py>Manage WebAccess</a> ' % (weburl, )
	if adminarea == 3: navtrail_previous_links += '> <a class=navtrail href=%s/admin/webaccess/webaccessadmin.py/rolearea>Role Administration</a> ' % (weburl, )
	elif adminarea == 4: navtrail_previous_links += '> <a class=navtrail href=%s/admin/webaccess/webaccessadmin.py/actionarea>Action Administration</a> ' % (weburl, )
	elif adminarea == 5: navtrail_previous_links += '> <a class=navtrail href=%s/admin/webaccess/webaccessadmin.py/userarea>User Administration</a> ' % (weburl, )
	elif adminarea == 6: navtrail_previous_links += '> <a class=navtrail href=%s/admin/webaccess/webaccessadmin.py/resetarea>Reset Authorizations</a> ' % (weburl, )

	id_user = getUid(req)

	if not authorized and not is_adminuser(req): return mustloginpage(req)

	elif not body:
	title = 'Manage WebAccess'
	body = startpage()
	elif type(body) != str: body = addadminbox(subtitle, datalist=body)

	return page(title=title,
	uid=id_user,
	body=body,
	navtrail=navtrail_previous_links,
	lastupdated=__lastupdated__)


	def mustloginpage(req):
	"""show a page asking the user to login."""

	navtrail_previous_links = """<a class=navtrail href="%s/admin/">Admin Area</a> > <a class=navtrail href="%s/admin/webaccess/">WebAccess Admin</a> """ % (weburl, weburl)

	return page(title='Authorization failure',
	uid=getUid(req),
	body=adderrorbox('try to login first',
	datalist=["""You are not a user authorized to perform admin tasks, try to
	<a href="%s/youraccount.py/login?referer=%s/admin/webaccess">login</a> with another account.""" % (weburl, weburl)]),
	navtrail=navtrail_previous_links,
	lastupdated=__lastupdated__)


	def is_adminuser(req):
	"""check if user is a registered administrator. """

	id_user = getUid(req)
	return acce.acc_authorize_action(id_user, WEBACCESSACTION)


	def perform_rolearea(req):
	"""create the role area menu page."""

	if not is_adminuser(req): return mustloginpage(req)

	header = ['id', 'name', 'description', 'users', 'authorizations / actions', 'role', '']
	roles = acca.acc_getAllRoles()

	roles2 = []
	for (id, name, desc) in roles:
	if len(desc) > 30: desc = desc[:30] + '...'
	roles2.append([id, name, desc])
	for col in [(('add', 'adduserrole'),
	('remove', 'deleteuserrole')),
	(('add', 'addauthorization'),
	('modify', 'modifyauthorizations'),
	('remove', 'deleteroleaction')),
	(('delete', 'deleterole'), ),
	(('show details', 'showroledetails'), )]:
	roles2[-1].append('<a href="%s?id_role=%s">%s</a>' % (col[0][1], id, col[0][0]))
	for (str, function) in col[1:]:
	roles2[-1][-1] += ' / <a href="%s?id_role=%s">%s</a>' % (function, id, str)

	output = """
	<dl>
	<dt>Users:</dt>
	<dd>add or remove users from the access to a role and its priviliges.</dd>
	<dt>Authorizations/Actions:</dt>
	<dd>these terms means almost the same, but an authorization is a <br>
	connection between a role and an action (possibly) containing arguments.</dd>
	<dt>Roles:</dt>
	<dd>see all the information attached to a role and decide if you want to<br>delete it.</dd>
	</dl>
	"""

	output += tupletotable(header=header, tuple=roles2)

	extra = """
	<dl>
	<dt><a href="addrole">Create new role</a></dt>
	<dd>go here to add a new role.</dd>
	<dt><a href="addaction">Create new action</a></dt>
	<dd>go here to add a new action.</dd>
	</dl>
	"""

	return index(req=req,
	title='Role Administration',
	subtitle='administration with roles as access point',
	body=[output, extra],
	adminarea=2)


	def perform_actionarea(req):
	"""create the action area menu page."""

	if not is_adminuser(req): return mustloginpage(req)

	header = ['id', 'name', 'authorizations/roles', 'action', '']
	actions = acca.acc_getAllActions()

	actions2 = []
	roles2 = []
	for (id, name, dontcare) in actions:
	actions2.append([id, name])
	for col in [(('add', 'addauthorization'),
	('modify', 'modifyauthorizations'),
	('remove', 'deleteroleaction')),
	(('delete', 'deleteaction'), ),
	(('show details', 'showactiondetails'), )]:
	actions2[-1].append('<a href="%s?id_action=%s&reverse=1">%s</a>' % (col[0][1], id, col[0][0]))
	for (str, function) in col[1:]:
	actions2[-1][-1] += ' / <a href="%s?id_action=%s&reverse=1">%s</a>' % (function, id, str)

	output = """
	<dl>
	<dt>Authorizations/Roles:</dt>
	<dd>these terms means almost the same, but an authorization is a <br>
	connection between a role and an action (possibly) containing arguments.</dd>
	<dt>Actions:</dt>
	<dd>see all the information attached to an action and decide if you want to<br>delete it.</dd>
	</dl>
	"""

	output += tupletotable(header=header, tuple=actions2)

	extra = """
	<dl>
	<dt><a href="addrole">Create new role</a>
	<dd>go here to add a new role.
	<dt><a href="addaction">Create new action</a>
	<dd>go here to add a new action.
	</dl>
	"""

	return index(req=req,
	title='Action Administration',
	subtitle='administration with actions as access point',
	body=[output, extra],
	adminarea=2)


	def perform_userarea(req, email_user_pattern=''):
	"""create area to show info about users. """

	if not is_adminuser(req): return mustloginpage(req)

	subtitle = 'step 1 - search for users'

	output = """
	<p>
	search for users to display.
	</p> """

	# remove letters not allowed in an email
	email_user_pattern = cleanstring_email(email_user_pattern)

	text = ' <span class="adminlabel">1. search pattern </span>\n'
	text += ' <input class="admin_wvar" type="text" name="email_user_pattern" value="%s" />\n' % (email_user_pattern, )

	output += createhiddenform(action="userarea",
	text=text,
	button="search for users")

	if email_user_pattern:
	users1 = run_sql("""SELECT id, email FROM user WHERE email RLIKE '%s' ORDER BY email LIMIT %s""" % (email_user_pattern, MAXPAGEUSERS+1))

	if not users1:
	output += '<p>no matching users</p>'
	else:
	subtitle = 'step 2 - select what to do with user'

	users = []
	for (id, email) in users1[:MAXPAGEUSERS]:
	users.append([id, email])
	for col in [(('add', 'addroleuser'),
	('remove', 'deleteuserrole')),
	(('show details', 'showuserdetails'), )]:
	users[-1].append('<a href="%s?email_user_pattern=%s&id_user=%s">%s</a>' % (col[0][1], email_user_pattern, id, col[0][0]))
	for (str, function) in col[1:]:
	users[-1][-1] += ' / <a href="%s?email_user_pattern=%s&id_user=%s&reverse=1">%s</a>' % (function, email_user_pattern, id, str)

	output += '<p>found <strong>%s</strong> matching users:</p>' % (len(users1), )
	output += tupletotable(header=['id', 'email', 'roles', ''], tuple=users)

	if len(users1) > MAXPAGEUSERS:
	output += '<p><strong>only showing the first %s users, narrow your search...</strong></p>' % (MAXPAGEUSERS, )

	return index(req=req,
	title='User Administration',
	subtitle=subtitle,
	body=[output],
	adminarea=2)


	def perform_resetarea(req):
	"""create the reset area menu page."""

	if not is_adminuser(req): return mustloginpage(req)

	output = """
	<dl>
	<dt><a href="resetdefaultsettings">Reset to Default Authorizations</a>
	<dd>remove all changes that has been done to the roles and <br>
	add only the default authorization settings.
	<dt><a href="adddefaultsettings">Add Default Authorizations</a>
	<dd>keep all changes and add the default authorization settings.
	</dl>
	"""

	return index(req=req,
	title='Reset Authorizations',
	subtitle='reseting to or adding default authorizations',
	body=[output],
	adminarea=2)


	def perform_resetdefaultsettings(req, superusers=[], confirm=0):
	"""delete all roles, actions and authorizations presently in the database
	and add only the default roles.
	only selected users will be added to superadmin, rest is blank """

	if not is_adminuser(req): return mustloginpage(req)

	# cleaning input
	if type(superusers) == str: superusers = [superusers]

	# remove not valid e-mails
	for email in superusers:
	if not check_email(email): superusers.remove(email)

	# instructions
	output = """
	<p>
	before you reset the settings, we need some users<br>
	to connect to <strong>%s</strong>.<br>
	enter as many e-mail adresses you want and press <strong>reset</strong>.<br>
	<strong>confirm reset settings</strong> when you have added enough e-mails.<br>
	<strong><SUPPORTEMAIL></strong> is added as default.
	</p>""" % (SUPERADMINROLE, )

	# add more superusers
	output += """
	<p>enter user e-mail addresses: </p>
	<form action="resetdefaultsettings" method="POST">"""

	for email in superusers:
	output += ' <input type="hidden" name="superusers" value="%s" />' % (email, )

	output += """
	<span class="adminlabel">e-mail</span>
	<input class="admin_wvar" type="text" name="superusers" />
	<input class="adminbutton" type="submit" value="add e-mail" />
	</form>"""


	if superusers:
	# remove emails
	output += """
	<form action="resetdefaultsettings" method="POST">
	have you entered wrong data?
	<input class="adminbutton" type="submit" value="remove all e-mails" />
	</form>
	"""

	# superusers confirm table
	start = '<form action="resetdefaultsettings" method="POST">'

	extra = ' <input type="hidden" name="confirm" value="1" />'
	for email in superusers:
	extra += '<input type="hidden" name="superusers" value="%s" />' % (email, )
	extra += ' <input class="adminbutton" type="submit" value="confirm to reset settings" />'

	end = '</form>'

	output += '<p><strong>reset default settings</strong> with the users below? </p>'
	output += tupletotable(header=['e-mail address'],
	tuple=superusers,
	start=start,
	extracolumn=extra,
	end=end)

	if confirm in [1, "1"]:
	res = acca.acc_reset_default_settings(superusers)
	if res:
	output += '<p>successfully reset default settings</p>'
	else:
	output += '<p>sorry, could not reset default settings</p>'

	return index(req=req,
	title='Reset Default Settings',
	subtitle='reset settings',
	body=[output],
	adminarea=6)


	def perform_adddefaultsettings(req, superusers=[], confirm=0):
	"""add the default settings, and keep everything else.
	probably nothing will be deleted, except if there has been made changes to the defaults."""

	if not is_adminuser(req): return mustloginpage(req)

	# cleaning input
	if type(superusers) == str: superusers = [superusers]

	# remove not valid e-mails
	for email in superusers:
	if not check_email(email): superusers.remove(email)

	# instructions
	output = """
	<p>
	before you add the settings, we need some users<br>
	to connect to <strong>%s</strong>.<br>
	enter as many e-mail adresses you want and press <strong>add</strong>.<br>
	<strong>confirm add settings</strong> when you have added enough e-mails.<br>
	<strong><SUPPORTEMAIL></strong> is added as default.
	</p>""" % (SUPERADMINROLE, )

	# add more superusers
	output += """
	<p>enter user e-mail addresses: </p>
	<form action="adddefaultsettings" method="POST">"""

	for email in superusers:
	output += ' <input type="hidden" name="superusers" value="%s" />' % (email, )

	output += """
	<span class="adminlabel">e-mail</span>
	<input class="admin_wvar" type="text" name="superusers" />
	<input class="adminbutton" type="submit" value="add e-mail" />
	</form>
	"""

	if superusers:
	# remove emails
	output += """
	<form action="adddefaultsettings" method="POST">
	have you entered wrong data?
	<input class="adminbutton" type="submit" value="remove all e-mails" />
	</form>
	"""

	# superusers confirm table
	start = '<form action="adddefaultsettings" method="POST">'

	extra = ' <input type="hidden" name="confirm" value="1" />'
	for email in superusers:
	extra += '<input type="hidden" name="superusers" value="%s" />' % (email, )
	extra += ' <input class="adminbutton" type="submit" value="confirm to add settings" />'

	end = '</form>'

	output += '<p><strong>add default settings</strong> with the users below? </p>'
	output += tupletotable(header=['e-mail address'],
	tuple=superusers,
	start=start,
	extracolumn=extra,
	end=end)

	if confirm in [1, "1"]:
	res = acca.acc_add_default_settings(superusers)
	if res:
	output += '<p>successfully added default settings</p>'
	else:
	output += '<p>sorry, could not add default settings</p>'

	return index(req=req,
	title='Add Default Settings',
	subtitle='add settings',
	body=[output],
	adminarea=6)


	def perform_delegate_startarea(req):
	"""start area for lower level delegation of rights."""

	subtitle = 'select what to do'

	output = ''

	if is_adminuser(req):
	output += """
	<p>
	You are also allowed to be in the <a href="../webaccessadmin.py">Main Admin Area</a> which gives you<br>
	the access to the full functionality of WebAccess.
	</p>
	"""

	output += """
	<dl>
	<dt><a href="delegate_adduserrole">Connect users to roles</a></dt>
	<dd>add users to the roles you have delegation rights to.</dd>
	<dt><a href="delegate_deleteuserrole">Remove users from roles</a></dt>
	<dd>remove users from the roles you have delegation rights to.</dd>
	</dl>
	<dl>
	<dt><a href="delegate_adminsetup">Set up delegation rights</a></dt>
	<dd>spesialized area to set up the delegation rights used in the areas above. <br>
	you need to be a web administrator to access the area.</dd>
	</dl>
	"""

	return index(req=req,
	title='Delegate Rights',
	subtitle=subtitle,
	body=[output],
	adminarea=0,
	authorized=1)


	def perform_delegate_adminsetup(req, id_role_admin=0, id_role_delegate=0, confirm=0):
	"""lets the webadmins set up the delegation rights for the other roles

	id_role_admin - the role to be given delegation rights

	id_role_delegate - the role over which the delegation rights are given

	confirm - make the connection happen """

	subtitle = 'step 1 - select admin role'

	admin_roles = acca.acc_getAllRoles()

	output = """
	<p>
	This is a specialized area to handle a task that also can be handled<br>
	from the "add authorization" interface.
	</p>
	<p>
	By handling the delegation rights here you get the advantage of<br>
	not having to select the correct action <i>(%s)</i> or<br>
	remembering the names of available roles.
	</p>
	""" % (DELEGATEADDUSERROLE, )

	output += createroleselect(id_role=id_role_admin,
	step=1,
	button='select admin role',
	name='id_role_admin',
	action='delegate_adminsetup',
	roles=admin_roles)

	if str(id_role_admin) != '0':
	subtitle = 'step 2 - select delegate role'

	name_role_admin = acca.acc_getRoleName(id_role=id_role_admin)

	delegate_roles_old = acca.acc_find_delegated_roles(id_role_admin=id_role_admin)

	delegate_roles = []
	delegate_roles_old_names = []
	for role in admin_roles:
	if (role,) not in delegate_roles_old:
	delegate_roles.append(role)
	else:
	delegate_roles_old_names.append(role[1])

	if delegate_roles_old_names:
	delegate_roles_old_names.sort()
	names_str = ''
	for name in delegate_roles_old_names:
	if names_str: names_str += ', '
	names_str += name
	output += '<p>previously selected roles: <strong>%s</strong>.</p>' % (names_str, )

	extra = """
	<dl>
	<dt><a href="modifyauthorizations?id_role=%s&id_action=%s">Remove delegated roles</a></dt>
	<dd>use the standard administration area to remove delegation rights
	you no longer want to be available.</dd>
	</dl>
	""" % (id_role_admin, acca.acc_getActionId(name_action=DELEGATEADDUSERROLE))

	else:
	output += '<p>no previously selected roles.</p>'

	output += createroleselect(id_role=id_role_delegate,
	step=2,
	button='select delegate role',
	name='id_role_delegate',
	action='delegate_adminsetup',
	roles=delegate_roles,
	id_role_admin=id_role_admin)

	if str(id_role_delegate) != '0':
	subtitle = 'step 3 - confirm to add delegation right'

	name_role_delegate = acca.acc_getRoleName(id_role=id_role_delegate)

	output += """
	<p>
	<span class="warning"><strong>Warning:</strong> don't hand out delegation rights that can harm the system (e.g. delegating superrole).</span>
	</p> """

	output += createhiddenform(action="delegate_adminsetup",
	text='let role <strong>%s</strong> delegate rights over role <strong>%s</strong>?' % (name_role_admin, name_role_delegate),
	id_role_admin=id_role_admin,
	id_role_delegate=id_role_delegate,
	confirm=1)

	if int(confirm):
	subtitle = 'step 4 - confirm delegation right added'
	# res1 = acca.acc_addRoleActionArguments_names(name_role=name_role_admin,
	# name_action=DELEGATEADDUSERROLE,
	# arglistid=-1,
	# optional=0,
	# role=name_role_delegate)
	res1 = acca.acc_addAuthorization(name_role=name_role_admin,
	name_action=DELEGATEADDUSERROLE,
	optional=0,
	role=name_role_delegate)

	if res1:
	output += '<p>confirm: role <strong>%s</strong> delegates role <strong>%s</strong>.' % (name_role_admin, name_role_delegate)

	else: output += '<p>sorry, delegation right could not be added,<br>it probably already exists.</p>'

	# see if right hand menu is available
	try: body = [output, extra]
	except NameError: body = [output]

	return index(req=req,
	title='Delegate Rights',
	subtitle=subtitle,
	body=body,
	adminarea=1)


	def perform_delegate_adduserrole(req, id_role=0, email_user_pattern='', id_user=0, confirm=0):
	"""let a lower level web admin add users to a limited set of roles.

	id_role - the role to connect to a user

	id_user - the user to connect to a role

	confirm - make the connection happen """

	# finding the allowed roles for this user
	id_admin = getUid(req)
	id_action = acca.acc_getActionId(name_action=DELEGATEADDUSERROLE)
	actions = acca.acc_findPossibleActionsUser(id_user=id_admin, id_action=id_action)

	allowed_roles = []
	allowed_id_roles = []
	for (id, arglistid, name_role_help) in actions[1:]:
	id_role_help = acca.acc_getRoleId(name_role=name_role_help)
	if id_role_help and [id_role_help, name_role_help, ''] not in allowed_roles:
	allowed_roles.append([id_role_help, name_role_help, ''])
	allowed_id_roles.append(str(id_role_help))

	output = ''

	if not allowed_roles:
	subtitle = 'no delegation rights'
	output += """
	<p>
	You do not have the delegation rights over any roles.<br>
	If you think you should have such rights, contact a WebAccess Administrator.
	</p>"""
	extra = ''
	else:
	subtitle = 'step 1 - select role'

	output += """
	<p>
	Lower level delegation of access rights to roles.<br>
	An administrator with all rights have to give you these rights.
	</p>"""

	email_out = acca.acc_getUserEmail(id_user=id_user)
	name_role = acca.acc_getRoleName(id_role=id_role)

	output += createroleselect(id_role=id_role, step=1, name='id_role',
	action='delegate_adduserrole', roles=allowed_roles)

	if str(id_role) != '0' and str(id_role) in allowed_id_roles:
	subtitle = 'step 2 - search for users'

	# remove letters not allowed in an email
	email_user_pattern = cleanstring_email(email_user_pattern)

	text = ' <span class="adminlabel">2. search pattern </span>\n'
	text += ' <input class="admin_wvar" type="text" name="email_user_pattern" value="%s" />\n' % (email_user_pattern, )

	output += createhiddenform(action="delegate_adduserrole",
	text=text,
	button="search for users",
	id_role=id_role)

	# pattern is entered
	if email_user_pattern:
	# users with matching email-address
	users1 = run_sql("""SELECT id, email FROM user WHERE email RLIKE '%s' ORDER BY email """ % (email_user_pattern, ))
	# users that are connected
	users2 = run_sql("""SELECT DISTINCT u.id, u.email
	FROM user u LEFT JOIN user_accROLE ur ON u.id = ur.id_user
	WHERE ur.id_accROLE = '%s' AND u.email RLIKE '%s'
	ORDER BY u.email """ % (id_role, email_user_pattern))

	# no users that match the pattern
	if not (users1 or users2):
	output += '<p>no qualified users, try new search.</p>'
	# too many matching users
	elif len(users1) > MAXSELECTUSERS:
	output += '<p><strong>%s hits</strong>, too many qualified users, specify more narrow search. (limit %s)</p>' % (len(users1), MAXSELECTUSERS)

	# show matching users
	else:
	subtitle = 'step 3 - select a user'

	users = []
	extrausers = []
	for (id, email) in users1:
	if (id, email) not in users2: users.append([id,email,''])
	for (id, email) in users2:
	extrausers.append([-id, email,''])

	output += createuserselect(id_user=id_user,
	action="delegate_adduserrole",
	step=3,
	users=users,
	extrausers=extrausers,
	button="add this user",
	id_role=id_role,
	email_user_pattern=email_user_pattern)

	try: id_user = int(id_user)
	except ValueError: pass
	# user selected already connected to role
	if id_user < 0:
	output += '<p>users in brackets are already attached to the role, try another one...</p>'
	# a user is selected
	elif email_out:
	subtitle = "step 4 - confirm to add user"

	output += createhiddenform(action="delegate_adduserrole",
	text='add user <strong>%s</strong> to role <strong>%s</strong>?' % (email_out, name_role),
	id_role=id_role,
	email_user_pattern=email_user_pattern,
	id_user=id_user,
	confirm=1)

	# it is confirmed that this user should be added
	if confirm:
	# add user
	result = acca.acc_addUserRole(id_user=id_user, id_role=id_role)

	if result and result[2]:
	subtitle = 'step 5 - confirm user added'
	output += '<p>confirm: user <strong>%s</strong> added to role <strong>%s</strong>.</p>' % (email_out, name_role)
	else:
	subtitle = 'step 5 - user could not be added'
	output += '<p>sorry, but user could not be added.</p>'

	extra = """
	<dl>
	<dt><a href="delegate_deleteuserrole?id_role=%s">Remove users from role</a></dt>
	<dd>remove users from the roles you have delegating rights to.</dd>
	</dl>
	""" % (id_role, )

	return index(req=req,
	title='Connect users to roles',
	subtitle=subtitle,
	body=[output, extra],
	adminarea=1,
	authorized=1)


	def perform_delegate_deleteuserrole(req, id_role=0, id_user=0, confirm=0):
	"""let a lower level web admin remove users from a limited set of roles.

	id_role - the role to connect to a user

	id_user - the user to connect to a role

	confirm - make the connection happen """

	subtitle = 'in progress...'

	output = '<p>in progress...</p>'

	# finding the allowed roles for this user
	id_admin = getUid(req)
	id_action = acca.acc_getActionId(name_action=DELEGATEADDUSERROLE)
	actions = acca.acc_findPossibleActionsUser(id_user=id_admin, id_action=id_action)

	output = ''

	if not actions:
	subtitle = 'no delegation rights'
	output += """
	<p>
	You do not have the delegation rights over any roles.<br>
	If you think you should have such rights, contact a WebAccess Administrator.
	</p>"""
	extra = ''
	else:
	subtitle = 'step 1 - select role'

	output += """
	<p>
	Lower level delegation of access rights to roles.<br>
	An administrator with all rights have to give you these rights.
	</p>"""

	email_out = acca.acc_getUserEmail(id_user=id_user)
	name_role = acca.acc_getRoleName(id_role=id_role)

	# create list of allowed roles
	allowed_roles = []
	allowed_id_roles = []
	for (id, arglistid, name_role_help) in actions[1:]:
	id_role_help = acca.acc_getRoleId(name_role=name_role_help)
	if id_role_help and [id_role_help, name_role_help, ''] not in allowed_roles:
	allowed_roles.append([id_role_help, name_role_help, ''])
	allowed_id_roles.append(str(id_role_help))

	output += createroleselect(id_role=id_role, step=1,
	action='delegate_deleteuserrole', roles=allowed_roles)

	if str(id_role) != '0' and str(id_role) in allowed_id_roles:
	subtitle = 'step 2 - select user'

	users = acca.acc_getRoleUsers(id_role)

	output += createuserselect(id_user=id_user,
	step=2,
	action='delegate_deleteuserrole',
	users=users,
	id_role=id_role)

	if str(id_user) != '0':
	subtitle = 'step 3 - confirm delete of user'
	email_user = acca.acc_getUserEmail(id_user=id_user)

	output += createhiddenform(action="delegate_deleteuserrole",
	text='delete user %s from %s?'
	% (headerstrong(user=id_user), headerstrong(role=id_role)),
	id_role=id_role,
	id_user=id_user,
	confirm=1)

	if confirm:
	res = acca.acc_deleteUserRole(id_user=id_user, id_role=id_role)
	if res:
	subtitle = 'step 4 - confirm user deleted from role'
	output += '<p>confirm: deleted user <strong>%s</strong> from role <strong>%s</strong>.</p>' % (email_user, name_role)
	else:
	subtitle = 'step 4 - user could not be deleted'
	output += 'sorry, but user could not be deleted<br>user is probably already deleted.'

	extra = """
	<dl>
	<dt><a href="delegate_adduserrole?id_role=%s">Connect users to role</a></dt>
	<dd>add users to the roles you have delegating rights to.</dd>
	</dl>
	""" % (id_role, )

	return index(req=req,
	title='Remove users from roles',
	subtitle=subtitle,
	body=[output, extra],
	adminarea=1,
	authorized=1)


	def perform_addaction(req, name_action='', arguments='', optional='no', description='put description here.', confirm=0):
	"""form to add a new action with these values:

	name_action - name of the new action

	arguments - allowedkeywords, separated by whitespace

	description - optional description of the action"""

	if not is_adminuser(req): return mustloginpage(req)

	name_action = cleanstring(name_action)
	arguments = cleanstring(arguments, comma=1)

	title = 'Add Action'
	subtitle = 'step 1 - give values to the requested fields'

	output = """
	<form action="addaction" method="POST">
	<span class="adminlabel">action name </span>
	<input class="admin_wvar" type="text" name="name_action" value="%s" /> <br>
	<span class="adminlabel">arguments </span>
	<input class="admin_wvar" type="text" name="arguments" value="%s" />
	<small>keywords for arguments, separate with comma, no whitespace.</small> <br>
	<span class="adminlabel">optional arguments</span>
	<select name="optional" class="admin_w200">
	<option value="no" selected="selected">no, not allowed</option>
	<option value="yes" %s>yes, allowed</option>
	</select><br>
	<span class="adminlabel">description </span>
	<textarea class="admin_wvar" rows="6" cols="30" name="description">%s</textarea>
	<input class="adminbutton" type="submit" value="add action" />
	</form>
	""" % (name_action, arguments, optional == 'yes' and 'selected="selected"' or '', description)

	if name_action:
	# description must be changed before it is submitted
	if description == 'put description here.': internaldesc = ''
	else: internaldesc = description

	if arguments:
	subtitle = 'step 2 - confirm to add action with %s arguments' % (optional == 'yes' and 'optional' or '', )
	arguments = arguments.replace(' ', '')
	text = 'add action with: <br>\n'
	text += 'name: <strong>%s</strong><br>\n' % (name_action, )
	if internaldesc:
	text += 'description: <strong>%s</strong><br>\n' % (description, )
	text += '%sarguments: <strong>%s</strong><br>' % (optional == 'yes' and 'optional ' or '', arguments)
	text += 'optional: <strong>%s</strong>?' % (optional, )

	else:
	optional = 'no'
	subtitle = 'step 2 - confirm to add action without arguments'
	text = 'add action <strong>%s</strong> without arguments' % (name_action, )
	if internaldesc: text += '<br>\nand description: <strong>%s</strong>?\n' % (description, )
	else: text += '?\n'

	output += createhiddenform(action="addaction",
	text=text,
	name_action=name_action,
	arguments=arguments,
	optional=optional,
	description=description,
	confirm=1)

	if confirm not in ["0", 0]:
	arguments = arguments.split(',')
	result = acca.acc_addAction(name_action,
	internaldesc,
	optional,
	*arguments)

	if result:
	subtitle = 'step 3 - action added'
	output += '<p>action added:</p>'
	output += tupletotable(header=['id', 'action name', 'description', 'allowedkeywords', 'optional'],
	tuple=[result])
	else:
	subtitle = 'step 3 - action could not be added'
	output += '<p>sorry, could not add action, <br>action with the same name probably exists.</p>'

	extra = """
	<dl>
	<dt><a href="addauthorization?id_action=%s&reverse=1">Add authorization</a></dt>
	<dd>start adding new authorizations to action %s.</dd>
	</dl> """ % (acca.acc_getActionId(name_action=name_action), name_action)

	try: body = [output, extra]
	except NameError: body = [output]

	return index(req=req,
	title=title,
	body=body,
	subtitle=subtitle,
	adminarea=4)


	def perform_deleteaction(req, id_action="0", confirm=0):
	"""show all roles connected, and ask for confirmation.

	id_action - id of action to delete """

	if not is_adminuser(req): return mustloginpage(req)

	title='Delete action'
	subtitle='step 1 - select action to delete'
	name_action = acca.acc_getActionName(id_action=id_action)

	output = createactionselect(id_action=id_action,
	action="deleteaction",
	step=1,
	actions=acca.acc_getAllActions(),
	button="delete action")

	if id_action != "0" and name_action:
	subtitle = 'step 2 - confirm the delete'

	output += actiondetails(id_action=id_action)

	if acca.acc_getActionRoles(id_action=id_action):
	output += createhiddenform(action="deleteroleaction",
	text="""rather delete only connection between action %s
	and a selected role?""" % (name_action, ),
	id_action=id_action,
	reverse=1,
	button='go there')

	output += createhiddenform(action="deleteaction",
	text=' delete action <strong>%s</strong> and all connections?' % (name_action, ),
	confirm=1,
	id_action=id_action)

	if confirm:
	subtitle = 'step 3 - confirm delete of action'
	res = acca.acc_deleteAction(id_action=id_action)
	if res:
	output += '<p>confirm: action <strong>%s</strong> deleted.<br>\n' % (name_action, )
	output += '%s entries deleted all in all.</p>\n' % (res, )
	else:
	output += '<p>sorry, action could not be deleted.</p>\n'
	elif id_action != "0":
	output += '<p>the action has been deleted...</p>'

	return index(req=req,
	title=title,
	subtitle=subtitle,
	body=[output],
	adminarea=4)


	def perform_showactiondetails(req, id_action):
	"""show the details of an action. """

	if not is_adminuser(req): return mustloginpage(req)

	output = createactionselect(id_action=id_action,
	action="showactiondetails",
	step=1,
	actions=acca.acc_getAllActions(),
	button="select action")

	if id_action not in [0, '0']:
	output += actiondetails(id_action=id_action)

	extra = """
	<dl>
	<dt><a href="addauthorization?id_action=%s&reverse=1">Add new authorization</a></dt>
	<dd>add an authorization.</dd>
	<dt><a href="modifyauthorizations?id_action=%s&reverse=1">Modify authorizations</a></dt>
	<dd>modify existing authorizations.</dd>
	<dt><a href="deleteroleaction?id_action=%s&reverse=1">Remove role</a></dt>
	<dd>remove all authorizations from action and a role.</dd>
	</dl>
	""" % (id_action, id_action, id_action)
	body = [output, extra]

	else:
	output += '<p>no details to show</p>'
	body = [output]

	return index(req=req,
	title='Show Action Details',
	subtitle='show action details',
	body=body,
	adminarea=4)


	def actiondetails(id_action=0):
	"""show details of given action. """

	output = ''

	if id_action not in [0, '0']:
	name_action = acca.acc_getActionName(id_action=id_action)

	output += '<p>action details:</p>'
	output += tupletotable(header=['id', 'name', 'description', 'allowedkeywords', 'optional'],
	tuple=[acca.acc_getActionDetails(id_action=id_action)])

	roleshlp = acca.acc_getActionRoles(id_action=id_action)
	if roleshlp:
	roles = []
	for (id, name, dontcare) in roleshlp:
	roles.append([id, name,
	'<a href="simpleauthorization?id_role=%s&id_action=%s">show authorization details</a>'
	% (id, id_action),
	'<a href="showroleusers?id_role=%s">show connected users</a>' % (id, )])
	roletable = tupletotable(header=['id', 'name', '', ''], tuple=roles)

	output += '<p>roles connected to %s:</p>\n' % (headerstrong(action=name_action, query=0), )
	output += roletable

	else:
	output += '<p>no roles connected to %s.</p>\n' % (headerstrong(action=name_action, query=0), )

	else:
	output += '<p>no details to show</p>'

	return output


	def perform_addrole(req, name_role='', description='put description here.', confirm=0):
	"""form to add a new role with these values:

	name_role - name of the new role

	description - optional description of the role """

	if not is_adminuser(req): return mustloginpage(req)

	name_role = cleanstring(name_role)

	title='Add Role'
	subtitle = 'step 1 - give values to the requested fields'

	output = """
	<form action="addrole" method="POST">
	<span class="adminlabel">role name </span>
	<input class="admin_wvar" type="text" name="name_role" value="%s" /> <br>
	<span class="adminlabel">description </span>
	<textarea class="admin_wvar" rows="6" cols="30" name="description">%s</textarea>
	<input class="adminbutton" type="submit" value="add role" />
	</form>
	""" % (name_role, description)

	if name_role:
	# description must be changed before submitting
	subtitle = 'step 2 - confirm to add role'
	internaldesc = ''
	if description != 'put description here.':
	internaldesc = description

	text = """
	add role with: <br>\n
	name: <strong>%s</strong> <br>""" % (name_role, )
	if internaldesc:
	text += 'description: <strong>%s</strong>?\n' % (description, )

	output += createhiddenform(action="addrole",
	text=text,
	name_role=name_role,
	description=description,
	confirm=1)

	if confirm not in ["0", 0]:
	result = acca.acc_addRole(name_role=name_role,
	description=internaldesc)

	if result:
	subtitle = 'step 3 - role added'
	output += '<p>role added: </p>'
	output += tupletotable(header=['id', 'action name', 'description', 'allowedkeywords'],
	tuple=[result])
	else:
	subtitle = 'step 3 - role could not be added'
	output += '<p>sorry, could not add role, <br>role with the same name probably exists.</p>'

	id_role = acca.acc_getRoleId(name_role=name_role)
	extra = """
	<dl>
	<dt><a href="addauthorization?id_role=%s">Add authorization</a></dt>
	<dd>start adding new authorizations to role %s.</dd>
	</dl>
	<dt><a href="adduserrole?id_role=%s">Connect user</a></dt>
	<dd>connect a user to role %s.</dd>
	<dl>
	</dl>""" % (id_role, name_role, id_role, name_role)

	try: body = [output, extra]
	except NameError: body = [output]

	return index(req=req,
	title=title,
	body=body,
	subtitle=subtitle,
	adminarea=3)


	def perform_deleterole(req, id_role="0", confirm=0):
	"""select a role and show all connected information,

	users - users that can access the role.

	actions - actions with possible authorizations."""

	if not is_adminuser(req): return mustloginpage(req)

	title = 'Delete role'
	subtitle = 'step 1 - select role to delete'

	name_role = acca.acc_getRoleName(id_role=id_role)
	output = createroleselect(id_role=id_role,
	action="deleterole",
	step=1,
	roles=acca.acc_getAllRoles(),
	button="delete role")

	if id_role != "0" and name_role:
	subtitle = 'step 2 - confirm delete of role'

	output += roledetails(id_role=id_role)

	output += createhiddenform(action="deleterole",
	text='delete role <strong>%s</strong> and all connections?' % (name_role, ),
	id_role=id_role,
	confirm=1)

	if confirm:
	res = acca.acc_deleteRole(id_role=id_role)
	subtitle = 'step 3 - confirm role deleted'
	if res:
	output += "<p>confirm: role <strong>%s</strong> deleted.<br>" % (name_role, )
	output += "<strong>%s</strong> entries were removed.</p>" % (res, )
	else:
	output += "<p>sorry, the role could not be deleted.</p>"
	elif id_role != "0":
	output += '<p>the role has been deleted...</p>'

	return index(req=req,
	title=title,
	subtitle=subtitle,
	body=[output],
	adminarea=3)


	def perform_showroledetails(req, id_role):
	"""show the details of a role."""

	if not is_adminuser(req): return mustloginpage(req)

	output = createroleselect(id_role=id_role,
	action="showroledetails",
	step=1,
	roles=acca.acc_getAllRoles(),
	button="select role")

	if id_role not in [0, '0']:
	name_role = acca.acc_getRoleName(id_role=id_role)

	output += roledetails(id_role=id_role)

	extra = """
	<dl>
	<dt><a href="addauthorization?id_role=%s">Add new authorization</a></dt>
	<dd>add an authorization.</dd>
	<dt><a href="modifyauthorizations?id_role=%s">Modify authorizations</a></dt>
	<dd>modify existing authorizations.</dd>
	</dl>
	<dl>
	<dt><a href="adduserrole?id_role=%s">Connect user</a></dt>
	<dd>connect a user to role %s.</dd>
	<dt><a href="deleteuserrole?id_role=%s">Remove user</a></dt>
	<dd>remove a user from role %s.</dd>
	</dl>
	""" % (id_role, id_role, id_role, name_role, id_role, name_role)
	body = [output, extra]

	else:
	output += '<p>no details to show</p>'
	body = [output]

	return index(req=req,
	title='Show Role Details',
	subtitle='show role details',
	body=body,
	adminarea=3)


	def roledetails(id_role=0):
	"""create the string to show details about a role. """

	name_role = acca.acc_getRoleName(id_role=id_role)

	usershlp = acca.acc_getRoleUsers(id_role)
	users = []
	for (id, email, dontcare) in usershlp:
	users.append([id, email, '<a href="showuserdetails?id_user=%s">show user details</a>' % (id, )])
	usertable = tupletotable(header=['id', 'email'], tuple=users)

	actionshlp = acca.acc_getRoleActions(id_role)
	actions = []
	for (id, name, dontcare) in actionshlp:
	actions.append([id, name,
	'<a href="showactiondetails?id_role=%s&id_action=%s">show action details</a>' % (id_role, id),
	'<a href="simpleauthorization?id_role=%s&id_action=%s">show authorization details</a>' % (id_role, id)])

	actiontable = tupletotable(header=['id', 'name', '', ''], tuple=actions)

	# show role details
	details = '<p>role details:</p>'
	details += tupletotable(header=['id', 'name', 'description'],
	tuple=[acca.acc_getRoleDetails(id_role=id_role)])

	# show connected users
	details += '<p>users connected to %s:</p>' % (headerstrong(role=name_role, query=0), )
	if users:
	details += usertable
	else:
	details += '<p>no users connected.</p>'
	# show connected authorizations
	details += '<p>authorizations for %s:</p>' % (headerstrong(role=name_role, query=0), )
	if actions:
	details += actiontable
	else:
	details += '<p>no authorizations connected</p>'

	return details



	def perform_adduserrole(req, id_role='0', email_user_pattern='', id_user='0', confirm=0):
	"""create connection between user and role.

	id_role - id of the role to add user to

	email_user_pattern - search for users using this pattern

	id_user - id of user to add to the role. """

	if not is_adminuser(req): return mustloginpage(req)

	email_out = acca.acc_getUserEmail(id_user=id_user)
	name_role = acca.acc_getRoleName(id_role=id_role)

	title = 'Connect user to role '
	subtitle = 'step 1 - select a role'

	output = createroleselect(id_role=id_role,
	action="adduserrole",
	step=1,
	roles=acca.acc_getAllRoles())

	# role is selected
	if id_role != "0":
	title += name_role

	subtitle = 'step 2 - search for users'

	# remove letters not allowed in an email
	email_user_pattern = cleanstring_email(email_user_pattern)

	text = ' <span class="adminlabel">2. search pattern </span>\n'
	text += ' <input class="admin_wvar" type="text" name="email_user_pattern" value="%s" />\n' % (email_user_pattern, )

	output += createhiddenform(action="adduserrole",
	text=text,
	button="search for users",
	id_role=id_role)

	# pattern is entered
	if email_user_pattern:
	# users with matching email-address
	users1 = run_sql("""SELECT id, email FROM user WHERE email RLIKE '%s' ORDER BY email """ % (email_user_pattern, ))
	# users that are connected
	users2 = run_sql("""SELECT DISTINCT u.id, u.email
	FROM user u LEFT JOIN user_accROLE ur ON u.id = ur.id_user
	WHERE ur.id_accROLE = '%s' AND u.email RLIKE '%s'
	ORDER BY u.email """ % (id_role, email_user_pattern))

	# no users that match the pattern
	if not (users1 or users2):
	output += '<p>no qualified users, try new search.</p>'
	elif len(users1) > MAXSELECTUSERS:
	output += '<p><strong>%s hits</strong>, too many qualified users, specify more narrow search. (limit %s)</p>' % (len(users1), MAXSELECTUSERS)

	# show matching users
	else:
	subtitle = 'step 3 - select a user'

	users = []
	extrausers = []
	for (id, email) in users1:
	if (id, email) not in users2: users.append([id,email,''])
	for (id, email) in users2:
	extrausers.append([-id, email,''])

	output += createuserselect(id_user=id_user,
	action="adduserrole",
	step=3,
	users=users,
	extrausers=extrausers,
	button="add this user",
	id_role=id_role,
	email_user_pattern=email_user_pattern)

	try: id_user = int(id_user)
	except ValueError: pass
	# user selected already connected to role
	if id_user < 0:
	output += '<p>users in brackets are already attached to the role, try another one...</p>'
	# a user is selected
	elif email_out:
	subtitle = "step 4 - confirm to add user"

	output += createhiddenform(action="adduserrole",
	text='add user <strong>%s</strong> to role <strong>%s</strong>?' % (email_out, name_role),
	id_role=id_role,
	email_user_pattern=email_user_pattern,
	id_user=id_user,
	confirm=1)

	# it is confirmed that this user should be added
	if confirm:
	# add user
	result = acca.acc_addUserRole(id_user=id_user, id_role=id_role)

	if result and result[2]:
	subtitle = 'step 5 - confirm user added'
	output += '<p>confirm: user <strong>%s</strong> added to role <strong>%s</strong>.</p>' % (email_out, name_role)
	else:
	subtitle = 'step 5 - user could not be added'
	output += '<p>sorry, but user could not be added.</p>'

	extra = """
	<dl>
	<dt><a href="addrole">Create new role</a></dt>
	<dd>go here to add a new role.</dd>
	</dl>
	"""
	if str(id_role) != "0":
	extra += """
	<dl>
	<dt><a href="deleteuserrole?id_role=%s">Remove users</a></dt>
	<dd>remove users from role %s.</dd>
	<dt><a href="showroleusers?id_role=%s">Connected users</a></dt>
	<dd>show all users connected to role %s.</dd>
	</dl>
	<dl>
	<dt><a href="addauthorization?id_role=%s">Add authorization</a></dt>
	<dd>start adding new authorizations to role %s.</dd>
	</dl>
	""" % (id_role, name_role, id_role, name_role, id_role, name_role)

	return index(req=req,
	title=title,
	subtitle=subtitle,
	body=[output, extra],
	adminarea=3)


	def perform_addroleuser(req, email_user_pattern='', id_user='0', id_role='0', confirm=0):
	"""delete connection between role and user.

	id_role - id of role to disconnect

	id_user - id of user to disconnect. """

	if not is_adminuser(req): return mustloginpage(req)

	email_out = acca.acc_getUserEmail(id_user=id_user)
	name_role = acca.acc_getRoleName(id_role=id_role)
	# used to sort roles, and also to determine right side links
	con_roles = []
	not_roles = []

	title = 'Connect user to roles'
	subtitle = 'step 1 - search for users'

	# clean email search string
	email_user_pattern = cleanstring_email(email_user_pattern)

	text = ' <span class="adminlabel">1. search pattern </span>\n'
	text += ' <input class="admin_wvar" type="text" name="email_user_pattern" value="%s" />\n' % (email_user_pattern, )

	output = createhiddenform(action='addroleuser',
	text=text,
	button='search for users',
	id_role=id_role)

	if email_user_pattern:
	subtitle = 'step 2 - select user'

	users1 = run_sql("""SELECT id, email FROM user WHERE email RLIKE '%s' ORDER BY email """ % (email_user_pattern, ))
	users = []
	for (id, email) in users1: users.append([id, email, ''])

	# no users
	if not users:
	output += '<p>no qualified users, try new search.</p>'
	# too many users
	elif len(users) > MAXSELECTUSERS:
	output += '<p><strong>%s hits</strong>, too many qualified users, specify more narrow search. (limit %s)</p>' % (len(users), MAXSELECTUSERS)
	# ok number of users
	else:
	output += createuserselect(id_user=id_user,
	action='addroleuser',
	step=2,
	users=users,
	button='select user',
	email_user_pattern=email_user_pattern)

	if int(id_user):
	subtitle = 'step 3 - select role'

	# roles the user is connected to
	role_ids = acca.acc_getUserRoles(id_user=id_user)
	# all the roles, lists are sorted on the background of these...
	all_roles = acca.acc_getAllRoles()

	# sort the roles in connected and not connected roles
	for (id, name, description) in all_roles:
	if (id, ) in role_ids: con_roles.append([-id, name, description])
	else: not_roles.append([id, name, description])

	# create roleselect
	output += createroleselect(id_role=id_role,
	action='addroleuser',
	step=3,
	roles=not_roles,
	extraroles=con_roles,
	extrastamp='(connected)',
	button='add this role',
	email_user_pattern=email_user_pattern,
	id_user=id_user)

	if int(id_role) < 0:
	name_role = acca.acc_getRoleName(id_role=-int(id_role))
	output += '<p>role %s already connected to the user, try another one...<p>' % (name_role, )
	elif int(id_role):
	subtitle = 'step 4 - confirm to add role to user'

	output += createhiddenform(action='addroleuser',
	text='add role <strong>%s</strong> to user <strong>%s</strong>?' % (name_role, email_out),
	email_user_pattern=email_user_pattern,
	id_user=id_user,
	id_role=id_role,
	confirm=1)

	if confirm:
	# add role
	result = acca.acc_addUserRole(id_user=id_user, id_role=id_role)

	if result and result[2]:
	subtitle = 'step 5 - confirm role added'
	output += '<p>confirm: role <strong>%s</strong> added to user <strong>%s</strong>.</p>' % (name_role, email_out)
	else:
	subtitle = 'step 5 - role could not be added'
	output += '<p>sorry, but role could not be added</p>'

	extra = """
	<dl>
	<dt><a href="addrole">Create new role</a></dt>
	<dd>go here to add a new role.</dd>
	"""
	if int(id_user) and con_roles:
	extra += """
	</dl>
	<dl>
	<dt><a href="deleteuserrole?id_user=%s&reverse=1">Remove roles</a></dt>
	<dd>disconnect roles from user %s.</dd>
	</dl>
	""" % (id_user, email_out)
	if int(id_role):
	if int(id_role) < 0: id_role = -int(id_role)
	extra += """
	<dl>
	<dt><a href="deleteuserrole?id_role=%s">Remove users</a></dt>
	<dd>disconnect users from role %s.<dd>
	</dl>
	""" % (id_role, name_role)

	return index(req=req,
	title=title,
	subtitle=subtitle,
	body=[output, extra],
	adminarea=5)


	def perform_deleteuserrole(req, id_role='0', id_user='0', reverse=0, confirm=0):
	"""delete connection between role and user.

	id_role - id of role to disconnect

	id_user - id of user to disconnect. """

	if not is_adminuser(req): return mustloginpage(req)

	title = 'Remove user from role'
	email_user = acca.acc_getUserEmail(id_user=id_user)
	name_role = acca.acc_getRoleName(id_role=id_role)

	output = ''

	if reverse in [0, '0']:
	adminarea = 3
	subtitle = 'step 1 - select the role'
	output += createroleselect(id_role=id_role,
	action="deleteuserrole",
	step=1,
	roles=acca.acc_getAllRoles())

	if id_role != "0":
	subtitle = 'step 2 - select the user'
	output += createuserselect(id_user=id_user,
	action="deleteuserrole",
	step=2,
	users=acca.acc_getRoleUsers(id_role=id_role),
	id_role=id_role)

	else:
	adminarea = 5
	# show only if user is connected to a role, get users connected to roles
	users = run_sql("""SELECT DISTINCT(u.id), u.email, u.note
	FROM user u LEFT JOIN user_accROLE ur
	ON u.id = ur.id_user
	WHERE ur.id_accROLE != 'NULL' AND u.email != ''
	ORDER BY u.email """)

	has_roles = 1

	# check if the user is connected to any roles
	for (id, email, note) in users:
	if str(id) == str(id_user): break
	# user not connected to a role
	else:
	subtitle = 'step 1 - user not connected'
	output += '<p>no need to remove roles from user <strong>%s</strong>,<br>user is not connected to any roles.</p>' % (email_user, )
	has_roles, id_user = 0, '0' # stop the rest of the output below...

	# user connected to roles
	if has_roles:
	output += createuserselect(id_user=id_user,
	action="deleteuserrole",
	step=1,
	users=users,
	reverse=reverse)

	if id_user != "0":
	subtitle = 'step 2 - select the role'

	role_ids = acca.acc_getUserRoles(id_user=id_user)
	all_roles = acca.acc_getAllRoles()
	roles = []
	for (id, name, desc) in all_roles:
	if (id, ) in role_ids: roles.append([id, name, desc])

	output += createroleselect(id_role=id_role,
	action="deleteuserrole",
	step=2,
	roles=roles,
	id_user=id_user,
	reverse=reverse)

	if id_role != '0' and id_user != '0':
	subtitle = 'step 3 - confirm delete of user'
	output += createhiddenform(action="deleteuserrole",
	text='delete user %s from %s?' % (headerstrong(user=id_user), headerstrong(role=id_role)),
	id_role=id_role,
	id_user=id_user,
	reverse=reverse,
	confirm=1)

	if confirm:
	res = acca.acc_deleteUserRole(id_user=id_user, id_role=id_role)
	if res:
	subtitle = 'step 4 - confirm delete of user'
	output += '<p>confirm: deleted user <strong>%s</strong> from role <strong>%s</strong>.</p>' % (email_user, name_role)
	else:
	subtitle = 'step 4 - user could not be deleted'
	output += 'sorry, but user could not be deleted<br>user is probably already deleted.'

	extra = ''
	if str(id_role) != "0":
	extra += """
	<dl>
	<dt><a href="adduserrole?id_role=%s">Connect user</a></dt>
	<dd>add users to role %s.</dd>
	""" % (id_role, name_role)
	if int(reverse):
	extra += """
	<dt><a href="deleteuserrole?id_role=%s">Remove user</a></dt>
	<dd>remove users from role %s.</dd> """ % (id_role, name_role)
	extra += '</dl>'
	if str(id_user) != "0":
	extra += """
	<dl>
	<dt><a href="addroleuser?email_user_pattern=%s&id_user=%s">Connect role</a></dt>
	<dd>add roles to user %s.</dd>
	""" % (email_user, id_user, email_user)
	if not int(reverse):
	extra += """
	<dt><a href="deleteuserrole?id_user=%s&email_user_pattern=%s&reverse=1">Remove role</a></dt>
	<dd>remove roles from user %s.</dd> """ % (id_user, email_user, email_user)
	extra += '</dl>'

	if extra: body = [output, extra]
	else: body = [output]

	return index(req=req,
	title=title,
	subtitle=subtitle,
	body=body,
	adminarea=adminarea)


	def perform_showuserdetails(req, id_user=0):
	"""show the details of a user. """

	if not is_adminuser(req): return mustloginpage(req)

	if id_user not in [0, '0']:
	output = userdetails(id_user=id_user)
	email_user = acca.acc_getUserEmail(id_user=id_user)

	extra = """
	<dl>
	<dt><a href="addroleuser?id_user=%s&email_user_pattern=%s">Connect role</a></dt>
	<dd>connect a role to user %s.</dd>
	<dt><a href="deleteuserrole?id_user=%s&reverse=1">Remove role</a></dt>
	<dd>remove a role from user %s.</dd>
	</dl>
	""" % (id_user, email_user, email_user, id_user, email_user)

	body = [output, extra]
	else:
	body = ['<p>no details to show</p>']

	return index(req=req,
	title='Show User Details',
	subtitle='show user details',
	body=body,
	adminarea=5)


	def userdetails(id_user=0):
	"""create the string to show details about a user. """

	# find necessary details
	email_user = acca.acc_getUserEmail(id_user=id_user)

	userroles = acca.acc_getUserRoles(id_user=id_user)
	conn_roles = []

	# find connected roles
	for (id, name, desc) in acca.acc_getAllRoles():
	if (id, ) in userroles:
	conn_roles.append([id, name, desc])
	conn_roles[-1].append('<a href="showroledetails?id_role=%s">show details</a>' % (id, ))

	if conn_roles:
	# print details
	details = '<p>roles connected to user <strong>%s</strong></p>' % (email_user, )
	details += tupletotable(header=['id', 'name', 'description', ''], tuple=conn_roles)
	else:
	details = '<p>no roles connected to user <strong>%s</strong>.</p>' % (email_user, )

	return details

	def perform_addauthorization(req, id_role="0", id_action="0", optional=0, reverse="0", confirm=0, **keywords):
	""" form to add new connection between user and role:

	id_role - role to connect

	id_action - action to connect

	reverse - role or action first? """

	if not is_adminuser(req): return mustloginpage(req)

	# values that might get used
	name_role = acca.acc_getRoleName(id_role=id_role) or id_role
	name_action = acca.acc_getActionName(id_action=id_action) or id_action

	optional = optional == 'on' and 1 or int(optional)

	extra = """
	<dl>
	<dt><a href="addrole">Create new role</a></dt>
	<dd>go here to add a new role.</dd>
	<dt><a href="addaction">Create new action</a></dt>
	<dd>go here to add a new action.</dd>
	</dl>
	"""

	# create the page according to which step the user is on
	# role -> action -> arguments
	if reverse in ["0", 0]:
	adminarea = 3
	subtitle = 'step 1 - select role'
	output = createroleselect(id_role=id_role,
	action="addauthorization",
	step=1,
	roles=acca.acc_getAllRoles(),
	reverse=reverse)

	if str(id_role) != "0":
	subtitle = 'step 2 - select action'
	rolacts = acca.acc_getRoleActions(id_role)
	allhelp = acca.acc_getAllActions()
	allacts = []
	for r in allhelp:
	if r not in rolacts: allacts.append(r)
	output += createactionselect(id_action=id_action,
	action="addauthorization",
	step=2,
	actions=rolacts,
	extraactions=allacts,
	id_role=id_role,
	reverse=reverse)

	# action -> role -> arguments
	else:
	adminarea = 4
	subtitle = 'step 1 - select action'
	output = createactionselect(id_action=id_action,
	action="addauthorization",
	step=1,
	actions=acca.acc_getAllActions(),
	reverse=reverse)
	if str(id_action) != "0":
	subtitle = 'step 2 - select role'
	actroles = acca.acc_getActionRoles(id_action)
	allhelp = acca.acc_getAllRoles()
	allroles = []
	for r in allhelp:
	if r not in actroles: allroles.append(r)
	output += createroleselect(id_role=id_role,
	action="addauthorization",
	step=2,
	roles=actroles,
	extraroles=allroles,
	id_action=id_action,
	reverse=reverse)

	# ready for step 3 no matter which direction we took to get here
	if id_action != "0" and id_role != "0":
	# links to adding authorizations in the other direction
	if str(reverse) == "0":
	extra += """
	<dl>
	<dt><a href="addauthorization?id_action=%s&reverse=1">Add authorization</a></dt>
	<dd>add authorizations to action %s.</dd>
	</dl> """ % (id_action, name_action)
	else:
	extra += """
	<dl>
	<dt><a href="addauthorization?id_role=%s">Add authorization</a></dt>
	<dd>add authorizations to role %s.</dd>
	</dl> """ % (id_role, name_role)

	subtitle = 'step 3 - enter values for the keywords\n'

	output += """
	<form action="addauthorization" method="POST">
	<input type="hidden" name="id_role" value="%s">
	<input type="hidden" name="id_action" value="%s">
	<input type="hidden" name="reverse" value="%s">
	""" % (id_role, id_action, reverse)

	# the actions argument keywords
	res_keys = acca.acc_getActionKeywords(id_action=id_action)

	# res used to display existing authorizations
	# res used to determine if showing "create connection without arguments"
	res_auths = acca.acc_findPossibleActions(id_role, id_action)

	if not res_keys:
	# action without arguments
	if not res_auths:
	output += """
	<input type="hidden" name="confirm" value="1">
	create connection between %s?
	<input class="adminbutton" type="submit" value="confirm">
	</form>
	""" % (headerstrong(role=name_role, action=name_action, query=0), )
	else:
	output += '<p><strong>connection without arguments is already created.</strong></p>'

	else:
	# action with arguments
	optionalargs = acca.acc_getActionIsOptional(id_action=id_action)

	output += '<span class="adminlabel">3. authorized arguments</span><br>'
	if optionalargs:
	# optional arguments
	output += """
	<p>
	<input type="radio" name="optional" value="1" %s />
	connect %s to %s for any arguments <br>
	<input type="radio" name="optional" value="0" %s />
	connect %s to %s for only these argument cases:
	</p>
	""" % (optional and 'checked="checked"' or '', name_role, name_action, not optional and 'checked="checked"' or '', name_role, name_action)

	# list the arguments
	allkeys = 1
	for key in res_keys:
	output += '<span class="adminlabel" style="margin-left: 30px;">%s </span>\n <input class="admin_wvar" type="text" name="%s"' % (key, key)
	try:
	val = keywords[key] = cleanstring_argumentvalue(keywords[key])
	if val: output += 'value="%s" ' % (val, )
	else: allkeys = 0
	except KeyError: allkeys = 0
	output += ' /> <br>\n'
	output = output[:-5] + ' <input class="adminbutton" type="submit" value="create authorization -->" />\n'
	output += '</form>\n'

	# ask for confirmation
	if str(allkeys) != "0" or optional:
	keys = keywords.keys()
	keys.reverse()
	subtitle = 'step 4 - confirm add of authorization\n'

	text = """
	create connection between <br>
	%s <br>
	""" % (headerstrong(role=name_role, action=name_action, query=0), )

	if optional:
	text += 'withouth arguments'
	keywords = {}
	else:
	for key in keys:
	text += '<strong>%s</strong>: %s \n' % (key, keywords[key])

	output += createhiddenform(action="addauthorization",
	text=text,
	id_role=id_role,
	id_action=id_action,
	reverse=reverse,
	confirm=1,
	optional=optional,
	**keywords)

	# show existing authorizations, found authorizations further up in the code...
	# res_auths = acca.acc_findPossibleActions(id_role, id_action)
	output += '<p>existing authorizations:</p>'
	if res_auths:
	output += tupletotable(header=res_auths[0], tuple=res_auths[1:])
	# shortcut to modifying authorizations
	extra += """
	<dl>
	<dt><a href="modifyauthorizations?id_role=%s&id_action=%s&reverse=%s">Modify authorizations</a></dt>
	<dd>modify the existing authorizations.</dd>
	</dl> """ % (id_role, id_action, reverse)

	else: output += '<p>no details to show</p>'


	# user confirmed to add entries
	if confirm:
	subtitle = 'step 5 - confirm authorization added'
	res1 = acca.acc_addAuthorization(name_role=name_role,
	name_action=name_action,
	optional=optional,
	**keywords)

	if res1:
	res2 = acca.acc_findPossibleActions(id_role, id_action)
	arg = res1[0][3] # the arglistid
	new = [res2[0]]
	for row in res2[1:]:
	if int(row[0]) == int(arg): new.append(row)

	newauths = tupletotable(header=new[0], tuple=new[1:])
	newentries = tupletotable(header=['role id', 'action id', 'argument id', '#'], tuple=res1)

	st = 'style="vertical-align: top"'
	output += """
	<p>new authorization and entries:</p>
	<table><tr>
	<td class="admintd" %s>%s</td>
	<td class="admintd" %s>%s</td>
	</tr></table> """ % (st, newauths, st, newentries)

	else: output += '<p>sorry, authorization could not be added,<br>it probably already exists</p>'

	# trying to put extra link on the right side
	try: body = [output, extra]
	except NameError: body = [output]

	return index(req=req,
	title = 'Create entry for new authorization',
	subtitle=subtitle,
	body=body,
	adminarea=adminarea)


	def perform_deleteroleaction(req, id_role="0", id_action="0", reverse=0, confirm=0):
	"""delete all connections between a role and an action.

	id_role - id of the role

	id_action - id of the action

	reverse - 0: ask for role first
	1: ask for action first"""

	if not is_adminuser(req): return mustloginpage(req)

	title = 'Remove action from role '

	if reverse in ["0", 0]:
	# select role -> action
	adminarea = 3
	subtitle = 'step 1 - select a role'
	output = createroleselect(id_role=id_role,
	action="deleteroleaction",
	step=1,
	roles=acca.acc_getAllRoles(),
	reverse=reverse)

	if id_role != "0":
	rolacts = acca.acc_getRoleActions(id_role=id_role)
	subtitle = 'step 2 - select the action'
	output += createactionselect(id_action=id_action,
	action="deleteroleaction",
	step=2,
	actions=rolacts,
	reverse=reverse,
	id_role=id_role,
	button="remove connection and all authorizations")
	else:
	# select action -> role
	adminarea = 4
	subtitle = 'step 1 - select an action'
	output = createactionselect(id_action=id_action,
	action="deleteroleaction",
	step=1,
	actions=acca.acc_getAllActions(),
	reverse=reverse)

	if id_action != "0":
	actroles = acca.acc_getActionRoles(id_action=id_action)
	subtitle = 'step 2 - select the role'
	output += createroleselect(id_role=id_role,
	action="deleteroleaction",
	step=2,
	roles=actroles,
	button="remove connection and all authorizations",
	id_action=id_action,
	reverse=reverse)

	if id_action != "0" and id_role != "0":
	subtitle = 'step 3 - confirm to remove authorizations'
	# ask for confirmation

	res = acca.acc_findPossibleActions(id_role, id_action)

	if res:
	output += '<p>authorizations that will be deleted:</p>'
	output += tupletotable(header=res[0], tuple=res[1:])

	output += createhiddenform(action="deleteroleaction",
	text='remove %s from %s' % (headerstrong(action=id_action), headerstrong(role=id_role)),
	confirm=1,
	id_role=id_role,
	id_action=id_action,
	reverse=reverse)
	else:
	output += 'no authorizations'

	# confirmation is given
	if confirm:
	subtitle = 'step 4 - confirm authorizations removed '
	res = acca.acc_deleteRoleAction(id_role=id_role, id_action=id_action)
	if res:
	output += '<p>confirm: removed %s from %s<br>' % (headerstrong(action=id_action), headerstrong(role=id_role))
	output += '<strong>%s</strong> entries were removed.</p>' % (res, )
	else:
	output += '<p>sorry, no entries could be removed.</p>'

	return index(req=req,
	title=title,
	subtitle=subtitle,
	body=[output],
	adminarea=adminarea)


	def perform_modifyauthorizations(req, id_role="0", id_action="0", reverse=0, confirm=0, errortext='', sel='', authids=[]):
	"""given ids of a role and an action, show all possible action combinations
	with checkboxes and allow user to access other functions.

	id_role - id of the role

	id_action - id of the action

	reverse - 0: ask for role first
	1: ask for action first

	sel - which button and modification that is selected

	errortext - text to print when no connection exist between role and action

	authids - ids of checked checkboxes """

	if not is_adminuser(req): return mustloginpage(req)

	name_role = acca.acc_getRoleName(id_role)
	name_action = acca.acc_getActionName(id_action)

	output = ''

	try: id_role, id_action, reverse = int(id_role), int(id_action), int(reverse)
	except ValueError: pass

	extra = """
	<dl>
	<dt><a href="addrole">Create new role</a></dt>
	<dd>go here to add a new role.</dd>
	<dt><a href="addaction">Create new action</a></dt>
	<dd>go here to add a new action.</dd>
	</dl>
	"""
	if id_role or id_action:
	extra += '\n<dl>\n'
	if id_role and id_action:
	extra += """
	<dt><a href="addauthorization?id_role=%s&id_action=%s&reverse=%s">Add authorizations</a></dt>
	<dd>add an authorization to the existing ones.</dd> """ % (id_role, id_action, reverse)
	if id_role:
	extra += """
	<dt><a href="addauthorization?id_role=%s">Add authorizations</a></dt>
	<dd>add to role %s.</dd> """ % (id_role, name_role)
	if id_action:
	extra += """
	<dt><a href="addauthorization?id_action=%s&reverse=1">Add authorizations</a></dt>
	<dd>add to action %s.</dd> """ % (id_action, name_action)
	extra += '\n</dl>\n'


	if not reverse:
	# role -> action
	adminarea = 3
	subtitle = 'step 1 - select the role'
	output += createroleselect(id_role=str(id_role),
	action="modifyauthorizations",
	step=1,
	roles=acca.acc_getAllRoles(),
	reverse=reverse)

	if id_role:
	rolacts = acca.acc_getRoleActions(id_role=id_role)
	subtitle = 'step 2 - select the action'
	output += createactionselect(id_action=str(id_action),
	action="modifyauthorizations",
	step=2,
	actions=rolacts,
	id_role=id_role,
	reverse=reverse)
	else:
	adminarea = 4
	# action -> role
	subtitle = 'step 1 - select the action'
	output += createactionselect(id_action=str(id_action),
	action="modifyauthorizations",
	step=1,
	actions=acca.acc_getAllActions(),
	reverse=reverse)
	if id_action:
	actroles = acca.acc_getActionRoles(id_action=id_action)
	subtitle = 'step 2 - select the role'
	output += createroleselect(id_role=str(id_role),
	action="modifyauthorizations",
	step=2,
	roles=actroles,
	id_action=id_action,
	reverse=reverse)

	if errortext: output += '<p>%s</p>' % (errortext, )

	if id_role and id_action:
	# adding to main area
	if type(authids) is not list: authids = [authids]
	subtitle = 'step 3 - select groups and modification'

	# get info
	res = acca.acc_findPossibleActions(id_role, id_action)

	# clean the authids
	hiddenids = []
	if sel in ['delete selected']:
	hiddenids = authids[:]
	elif sel in ['split groups', 'merge groups']:
	for authid in authids:
	arghlp = res[int(authid)][0]
	if authid not in hiddenids and arghlp not in [-1, '-1', 0, '0']: hiddenids.append(authid)
	authids = hiddenids[:]

	if confirm:
	# do selected modification and output with new authorizations
	if sel == 'split groups':
	res = splitgroups(id_role, id_action, authids)
	elif sel == 'merge groups':
	res = mergegroups(id_role, id_action, authids)
	elif sel == 'delete selected':
	res = deleteselected(id_role, id_action, authids)
	authids = []
	res = acca.acc_findPossibleActions(id_role, id_action)
	output += 'authorizations after <strong>%s</strong>.<br>\n' % (sel, )

	elif sel and authids:
	output += 'confirm choice of authorizations and modification.<br>\n'
	else:
	output += 'select authorizations and perform modification.<br>\n'

	if not res:
	errortext='all connections deleted, try different '
	if reverse in ["0", 0]:
	return perform_modifyauthorizations(req=req, id_role=id_role, errortext=errortext + 'action.')
	else:
	return perform_modifyauthorizations(req=req, id_action=id_action, reverse=reverse, errortext=errortext + 'role.')

	# display
	output += modifyauthorizationsmenu(id_role, id_action, header=res[0], tuple=res[1:], checked=authids, reverse=reverse)

	if sel and authids:
	subtitle = 'step 4 - confirm to perform modification'
	# form with hidden authids
	output += '<form action="%s" method="POST">\n' % ('modifyauthorizations', )

	for hiddenid in hiddenids:
	output += '<input type="hidden" name="authids" value="%s" />\n' % (hiddenid, )

	# choose what to do
	if sel == 'split groups':
	output += '<p>split groups containing:</p>'
	elif sel == 'merge groups':
	output += '<p>merge groups containing:</p>'
	elif sel == 'delete selected':
	output += '<p>delete selected entries:</p>'

	extracolumn = '<input type="checkbox" name="confirm" value="1" />\n'
	extracolumn += '<input class="adminbutton" type="submit" value="confirm" />\n'

	# show the entries here...
	output += tupletotable_onlyselected(header=res[0],
	tuple=res[1:],
	selected=hiddenids,
	extracolumn=extracolumn)

	output += '<input type="hidden" name="id_role" value="%s" />\n' % (id_role, )
	output += '<input type="hidden" name="id_action" value="%s" />\n' % (id_action, )
	output += '<input type="hidden" name="sel" value="%s" />\n' % (sel, )
	output += '<input type="hidden" name="reverse" value="%s" />\n' % (reverse, )
	output += '</form>'

	# tried to perform modification without something selected
	elif sel and not authids and not confirm:
	output += '<p>no valid groups selected</p>'

	# trying to put extra link on the right side
	try: body = [output, extra]
	except NameError: body = [output]

	# Display the page
	return index(req=req,
	title='Modify Authorizations',
	subtitle=subtitle,
	body=body,
	adminarea=adminarea)


	def modifyauthorizationsmenu(id_role, id_action, tuple=[], header=[], checked=[], reverse=0):
	"""create table with header and checkboxes, used for multiple choice.
	makes use of tupletotable to add the actual table

	id_role - selected role, hidden value in the form

	id_action - selected action, hidden value in the form

	tuple - all rows to be put in the table (with checkboxes)

	header - column headers, empty strings added at start and end

	checked - ids of rows to be checked """

	if not tuple:
	return 'no authorisations...'

	argnum = len(acca.acc_getActionKeywords(id_action=id_action))

	tuple2 = []
	for t in tuple: tuple2.append(t[:])

	tuple2 = addcheckboxes(datalist=tuple2, name='authids', startindex=1, checked=checked)

	hidden = '<input type="hidden" name="id_role" value="%s" /> \n' % (id_role, )
	hidden += '<input type="hidden" name="id_action" value="%s" /> \n' % (id_action, )
	hidden += '<input type="hidden" name="reverse" value="%s" /> \n' % (reverse, )


	button = '<input type="submit" class="adminbutton" value="delete selected" name="sel" />\n'
	if argnum > 1:
	button += '<input type="submit" class="adminbutton" value="split groups" name="sel" />\n'
	button += '<input type="submit" class="adminbutton" value="merge groups" name="sel" />\n'

	hdrstr = ''
	for h in [''] + header + ['']: hdrstr += ' <th class="adminheader">%s</th>\n' % (h, )
	if hdrstr: hdrstr = ' <tr>\n%s\n </tr>\n' % (hdrstr, )

	output = '<form action="modifyauthorizations" method="POST">\n'
	output += '<table class="admin_wvar_nomargin"> \n'
	output += hdrstr
	output += '<tr><td>%s</td></tr>\n' % (hidden, )

	align = ['admintdleft'] * len(tuple2[0])
	try: align[1] = 'admintdright'
	except IndexError: pass

	output += '<tr>'
	for i in range(len(tuple2[0])): output += '<td class="%s">%s</td>\n' % (align[i], tuple2[0][i])
	output += '<td rowspan="%s" style="vertical-align: bottom">\n%s\n</td>\n' % (len(tuple2), button)

	output += '</tr>\n'
	for row in tuple2[1:]:
	output += ' <tr>\n'
	for i in range(len(row)): output += '<td class="%s">%s</td>\n' % (align[i], row[i])
	output += ' </tr>\n'

	output += '</table>\n</form>\n'

	return output


	def splitgroups(id_role=0, id_action=0, authids=[]):
	"""get all the old ones, gather up the arglistids find a list of
	arglistidgroups to be split, unique get all actions in groups outside
	of the old ones, (old arglistid is allowed).

	show them like in showselect. """

	if not id_role or not id_action or not authids:
	return 0

	# find all the actions
	datalist = acca.acc_findPossibleActions(id_role, id_action)

	if type(authids) is str: authids = [authids]
	for i in range(len(authids)): authids[i] = int(authids[i])

	# argumentlistids of groups to be split
	splitgrps = []
	for authid in authids:
	hlp = datalist[authid][0]
	if hlp not in splitgrps and authid in range(1,len(datalist)):
	splitgrps.append(hlp)

	# split groups and return success or failure
	result = 1
	for splitgroup in splitgrps:
	result = 1 and acca.acc_splitArgumentGroup(id_role, id_action, splitgroup)

	return result


	def mergegroups(id_role=0, id_action=0, authids=[]):
	"""get all the old ones, gather up the argauthids find a list
	of arglistidgroups to be split, unique get all actions in groups
	outside of the old ones, (old arglistid is allowed).

	show them like in showselect."""

	if not id_role or not id_action or not authids:
	return 0

	datalist = acca.acc_findPossibleActions(id_role, id_action)

	if type(authids) is str: authids = [authids]
	for i in range(len(authids)): authids[i] = int(authids[i])

	# argumentlistids of groups to be merged
	mergegroups = []
	for authid in authids:
	hlp = datalist[authid][0]
	if hlp not in mergegroups and authid in range(1, len(datalist)):
	mergegroups.append(hlp)

	# merge groups and return success or failure
	if acca.acc_mergeArgumentGroups(id_role, id_action, mergegroups):
	return 1
	else:
	return 0



	def deleteselected(id_role=0, id_action=0, authids=[]):
	"""delete checked authorizations/possible actions, ids in authids.

	id_role - role to delete from

	id_action - action to delete from

	authids - listids for which possible actions to delete."""

	if not id_role or not id_action or not authids:
	return 0

	if type(authids) in [str, int]: authids = [authids]
	for i in range(len(authids)): authids[i] = int(authids[i])

	result = acca.acc_deletePossibleActions(id_role=id_role,
	id_action=id_action,
	authids=authids)

	return result

	def headeritalic(**ids):
	"""transform keyword=value pairs to string with value in italics.

	**ids - a dictionary of pairs to create string from """

	output = ''
	value = ''
	table = ''

	for key in ids.keys():
	if key in ['User', 'user']:
	value, table = 'email', 'user'
	elif key in ['Role', 'role']:
	value, table = 'name', 'accROLE'
	elif key in ['Action', 'action']:
	value, table = 'name', 'accACTION'
	else:
	if output: output += ' and '
	output += ' %s <i>%s</i>' % (key, ids[key])
	continue

	res = run_sql("""SELECT %s FROM %s WHERE id = %s""" % (value, table, ids[key]))

	if res:
	if output: output += ' and '
	output += ' %s <i>%s</i>' % (key, res[0][0])

	return output


	def headerstrong(query=1, **ids):
	"""transform keyword=value pairs to string with value in strong text.

	**ids - a dictionary of pairs to create string from

	query - 1 -> try to find names to ids of role, user and action.
	0 -> do not try to find names, use the value passed on """

	output = ''
	value = ''
	table = ''

	for key in ids.keys():
	if key in ['User', 'user']:
	value, table = 'email', 'user'
	elif key in ['Role', 'role']:
	value, table = 'name', 'accROLE'
	elif key in ['Action', 'action']:
	value, table = 'name', 'accACTION'
	else:
	if output: output += ' and '
	output += ' %s <strong>%s</strong>' % (key, ids[key])
	continue

	if query:
	res = run_sql("""SELECT %s FROM %s WHERE id = %s""" % (value, table, ids[key]))
	if res:
	if output: output += ' and '
	output += ' %s <strong>%s</strong>' % (key, res[0][0])
	else:
	if output: output += ' and '
	output += ' %s <strong>%s</strong>' % (key, ids[key])

	return output


	def startpage():
	"""create the menu for the startpage"""

	body = """
	<table class="admin_wvar" width="100%" summary="">
	<thead>
	<tr>
	<th class="adminheaderleft">selection for WebAccess Admin</th>
	</tr>
	</thead>
	<tbody>
	<tr>
	<td>
	<dl>
	<dt><a href="webaccessadmin.py/rolearea">Role Area</a>
	<dd>main area to configure administration rights and authorization rules.
	<dt><a href="webaccessadmin.py/actionarea">Action Area</a>
	<dd>configure administration rights with the actions as starting point.
	<dt><a href="webaccessadmin.py/userarea">User Area</a>
	<dd>configure administration rights with the users as starting point.
	<dt><a href="webaccessadmin.py/resetarea">Reset Area</a>
	<dd>reset roles, actions and authorizations.
	</dl>
	</td>
	</tr>
	</tbody>
	</table>"""

	return body

	def rankarea():
	return "Rankmethod area"

	def perform_simpleauthorization(req, id_role=0, id_action=0):
	"""show a page with simple overview of authorizations between a
	connected role and action. """

	if not is_adminuser(req): return mustloginpage(req)

	res = acca.acc_findPossibleActions(id_role, id_action)
	if res:
	extra = createhiddenform(action='modifyauthorizations',
	button='modify authorizations',
	id_role=id_role,
	id_action=id_action)

	output = '<p>authorizations for %s:</p>' % (headerstrong(action=id_action, role=id_role), )
	output += tupletotable(header=res[0], tuple=res[1:], extracolumn=extra)
	else:
	output = 'no details to show'

	return index(req=req,
	title='Simple authorization details',
	subtitle='simple authorization details',
	body=[output],
	adminarea=3)


	def perform_showroleusers(req, id_role=0):
	"""show a page with simple overview of a role and connected users. """

	if not is_adminuser(req): return mustloginpage(req)

	res = acca.acc_getRoleUsers(id_role=id_role)
	name_role = acca.acc_getRoleName(id_role=id_role)

	if res:
	users = []
	for (id, name, dontcare) in res: users.append([id, name, '<a href="showuserdetails?id_user=%s">show user details</a>'
	% (id, )])
	output = '<p>users connected to %s:</p>' % (headerstrong(role=id_role), )
	output += tupletotable(header=['id', 'name', ''], tuple=users)
	else:
	output = 'no users connected to role <strong>%s</strong>' % (name_role, )

	extra = """
	<dl>
	<dt><a href="adduserrole?id_role=%s">Connect user</a></dt>
	<dd>connect users to the role.</dd>
	</dl>
	""" % (id_role, )

	return index(req=req,
	title='Users connected to role %s' % (name_role, ),
	subtitle='simple details',
	body=[output, extra],
	adminarea=3)





	def createselect(id_input="0", label="", step=0, name="",
	action="", list=[], extralist=[], extrastamp='',
	button="", **hidden):
	"""create form with select and hidden values

	id - the one to choose as selected if exists

	label - label shown to the left of the select

	name - the name of the select on which to reference it

	list - primary list to select from

	extralist - list of options to be put in paranthesis

	extrastamp - stamp extralist entries with this if not ''
	usually paranthesis around the entry

	button - the value/text to be put on the button

	**hidden - name=value pairs to be put as hidden in the form. """

	step = step and '%s. ' % step or ''

	output = '<form action="%s" method="POST">\n' % (action, )
	output += ' <span class="adminlabel">%s</span>\n' % (step + label, )
	output += ' <select name="%s" class="admin_w200">\n' % (name, )
	if not list and not extralist:
	output += ' <option value="0">* no %ss to select from *</option>\n' % (label.split()[-1], )
	else:
	output += ' <option value="0">* %s *</option>\n' % (label, )
	for (id, email, dontcare) in list:
	if str(id) == id_input: output += ' <option value="%s" selected="selected">%s</option>\n' % (id, email)
	else: output += ' <option value="%s">%s</option>\n' % (id, email)
	for (id, email, dontcare) in extralist:
	if str(id) == id_input:
	if not extrastamp: output += ' <option value="%s" selected="selected">(%s)</option>\n' % (id, email)
	else: output += ' <option value="%s">%s %s</option>\n' % (id, email, extrastamp)
	elif not extrastamp: output += ' <option value="%s">(%s)</option>\n' % (id, email)
	else: output += ' <option value="%s">%s %s</option>\n' % (id, email, extrastamp)

	output += ' </select>\n'
	for key in hidden.keys():
	output += ' <input type="hidden" name="%s" value="%s" />\n' % (key, hidden[key])
	output += ' <input class="adminbutton" type="submit" value="%s" />\n' % (button, )
	output += '</form>\n'

	return output


	def createactionselect(id_action="0", label="select action", step=0, name="id_action",
	action="", actions=[], extraactions=[], extrastamp='',
	button="select action", **hidden):
	"""create a select for roles in a form. see createselect."""

	return createselect(id_input=id_action, label=label, step=step, name=name,
	action=action, list=actions, extralist=extraactions, extrastamp=extrastamp,
	button=button, **hidden)


	def createroleselect(id_role="0", label="select role", step=0, name="id_role",
	action="", roles=[], extraroles=[], extrastamp='',
	button="select role", **hidden):
	"""create a select for roles in a form. see createselect."""

	return createselect(id_input=id_role, label=label, step=step, name=name,
	action=action, list=roles, extralist=extraroles, extrastamp=extrastamp,
	button=button, **hidden)


	def createuserselect(id_user="0", label="select user", step=0, name="id_user",
	action="", users=[], extrausers=[], extrastamp='(connected)',
	button="select user", **hidden):
	"""create a select for users in a form.see createselect."""

	return createselect(id_input=id_user, label=label, step=step, name=name,
	action=action, list=users, extralist=extrausers, extrastamp=extrastamp,
	button=button, **hidden)


	def cleanstring(str='', comma=0):
	"""clean all the strings before submitting to access control admin.
	remove characters not letter, number or underscore, also remove leading
	underscores and numbers. return cleaned string.

	str - string to be cleaned

	comma - 1 -> allow the comma to divide multiple arguments
	0 -> wash commas as well """

	# remove not allowed characters
	str = re.sub(r'[^a-zA-Z0-9_,]', '', str)

	# split string on commas
	items = str.split(',')
	str = ''
	for item in items:
	if not item: continue
	if comma and str: str += ','
	# create valid variable names
	str += re.sub(r'^([0-9_])*', '', item)

	return str


	def cleanstring_argumentvalue(str=''):
	"""clean the value of an argument before submitting it.
	allowed characters: a-z A-Z 0-9 _ and space

	str - string to be cleaned """

	# remove not allowed characters
	str = re.sub(r'[^a-zA-Z0-9_ .]', '', str)
	# trim leading and ending spaces
	str = re.sub(r'^ \| $', '', str)

	return str


	def cleanstring_email(str=''):
	"""clean the string and return a valid email address.

	str - string to be cleaned """

	# remove not allowed characters
	str = re.sub(r'[^a-zA-Z0-9_.@-]', '', str)

	return str


	def check_email(str=''):
	"""control that submitted emails are correct.
	this little check is not very good, but better than nothing. """

	r = re.compile(r'(.)+\@(.)+\.(.)+')
	return r.match(str) and 1 or 0

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