wiki:AccountManagerPlugin/Modules

AccountManager

Package
acct_mgr.api

This holds core code of this plugin. This component must be enabled to use any of the other components.

Additionally one or more sources for storing authentication information are required:

There's even some information on how to get not-yet-implemented LDAP authentication.

AccountManagerAdminPanel

Package
acct_mgr.admin

This component adds a whole new section with a couple of pages to the trac:WebAdmin section for managing user accounts:

  • admin/accounts/config: basic configuration, such as AuthStore activation and ordering
  • admin/accounts/notification: AccountManager change notification settings
  • admin/accounts/users: user account listing with some management functions:
    • add/delete accounts
    • change password and other account attributes
    • reset password similar to the 'lost password', but triggered by admin (since acct_mgr-0.3)
    • review account details (since acct_mgr-0.3)
    • review and erase entries of Trac database table session_attribute (since acct_mgr-0.4)

Notes

  • In version acct_mgr-0.3, the module name was AccountManagerAdminPage. If you are upgrading to acct_mgr-0.4 from an earlier version, and this feature was enabled using acct_mgr.admin.AccountManagerAdminPage, this feature will now be disabled until it is enabled using acct_mgr.admin.AccountManagerAdminPanel.
  • Deleting entries from the session_attribute table requires ACCTMGR_ADMIN or TRAC_ADMIN permissions, but handle with care anyway: it is easy to delete your own SessionStore admin password. So double-check, and especially have a current, working Trac database backup before starting cleanup here.

screenshot of account administration - v 0.4

Older versions required the TRAC_ADMIN permission to access any of the admin pages, but a more granular set of permissions has been introduced since acct_mgr-0.3 (see changeset [9280]):

ACCTMGR_ADMIN
all permissions in the plugin's domain, like TRAC_ADMIN for Trac core
ACCTMGR_CONFIG_ADMIN
permission to see and use the configuration admin page
ACCTMGR_USER_ADMIN
permission to see and use most other admin pages of this plugin except the cleanup (button <Review account attributes>)

Configuration

[components]
acct_mgr.admin.useradminpanel = enabled
acct_mgr.api.accountmanager = enabled

Note: If you are upgrading to acct_mgr-0.4 from an earlier version, and this feature was enabled using acct_mgr.admin.AccountManagerAdminPage, this feature will now be disabled until it is enabled using acct_mgr.admin.AccountManagerAdminPanel.

AccountModule

Package
acct_mgr.web_ui

Allows users to change their password, or delete their account. When logged in it will appear as a tab "Account" after clicking the "Preferences" link.

Configuration

[components]
acct_mgr.web_ui.AccountModule = enabled

You'll need to activate at least one of the authentication resources bundled with AccountManagerPlugin. From a programmers view these are all IPasswordStore implementations. An error telling you "This password store does not support listing users" indicates that you didn't successfully activate/configure any authentication credential provider yet. The easiest way to do that is using the web-UI. Just go to admin/accounts/config and select a value different from setting "--" at least for one of the authentication resources listed there.

Disabling account deletion

If you want your users to be able to change their password in Trac user preferences (see 'Account' tab of 'Preferences' from the meta navigation bar), but don't want them to be able to delete their account, you should configure that as follows in trac.ini (since acct_mgr-0.3):

[account-manager]
allow_delete_account = false

Since Trac 0.10: When used in combination with the LoginModule it adds a link to the login page "Forgot your password?" where users can reset their password if they've forgotten it. You will need to have your SMTP server information configured in your trac.ini for the "Forgot your password?" link to show up and enable AccountChangeListener:

[components]
acct_mgr.notification.accountchangelistener = enabled

Lost password procedure

A user-triggered password reset is less intrusive starting with acct_mgr-0.3, not altering the current password before a successful login using it. Resetting your password you actually end up with two passwords before the next valid login:

  • Login with the new one from ResetPwStore to silently and finally overwrite the old with the new.
  • Login with the old one will just chancel the latest lost/new password request.

Or in other words: The temporary password is stored in ResetPwStore, a special SessionStore (sharing configuration with any other SessionStore) and merely checked as a fallback, if the regular authentication has failed. On authentication success with the old password any temporary password is deleted to prevent abuse of the 'lost password' procedure by others.

Disabling password reset

To disable just the password reset functionality add the following line to the [account-manager] section:

[account-manager]
reset_password = false

When a user resets their password they will be required to change their password on the next successful login. This can be disabled via the trac.ini by setting:

[account-manager]
force_passwd_change = false

LoginModule

Package
acct_mgr.web_ui

Allows users to login via a HTML form instead of using HTTP authentication.

screenshot of login form

The template has been modified for acct_mgr-0.3 to allow for better custom CSS styling. See style.css in the contrib directory for a jump-start.

Configuration

To use the AccountManager's HTML form, you need to explicitly disable Trac's own HTTP authentication module. To do so add this your trac.ini file or find and modify these existing lines accordingly:

[components]
acct_mgr.web_ui.LoginModule = enabled

trac.web.auth.LoginModule = disabled

When using the tracd server be sure not to use the --auth or --basic-auth options. Using either of these options will cause tracd to popup the username/password dialog box and you will not be able to use AccountManagerPlugin's HTML form.

If you have previously enabled authentication for Trac on Apache, you will need to disable it or Apache will popup the username/password dialog and you will be unable to use the HTML form. To disable the authentication look for a section in the Apache configuration file like:

<Location /trac/login>
   # Some options like AuthType and AuthUserFile
   Require valid-user
</Location>

Deleting or commenting the Require valid-user line should be sufficient to disable HTTP authentication. After you've tested it, you can probably delete or comment out the rest of the authentication options. In some pre-bundled packages as Bitnami Trac you will find it inside an Apache configuration extension as trac.conf (BitnamiTrac\trac\conf\trac.conf)

AccountGuard

Package
acct_mgr.guard

appears in acct_mgr-0.3: adds login failure tracking and administrative account locking to protect against brute-force attacks on user passwords

Enabling the guard means, that even legitimate login attempts will get rejected as long as account lock conditions are met. So an account is not reachable for the user while under attack. An admin could still log in (to a different account), check the source(s) of the malicious login attempts and stop them by other means to help the user restore access to his/her account.

See some example configurations in the cookbook page and look at the screenshot series below to get an idea how this is meant to work.

Hitting account soft (temporary) lock condition on login failure

account manager login page when hitting temporary account lock condition on login failure

Account details page showing failed login attempts and other details

account details admin page with failed login attempts

Display of total failed login attempts since last successful login

failed login attemps display after successful login


See also:

Last modified 6 years ago Last modified on Apr 4, 2018, 12:33:57 AM

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