Mozilla Sheriff Duty
Mozilla Sheriff Duty is a Sinatra-based web app for managing sheriff duty amongst sheriffs at Mozilla.
Sheriff Duty uses several Ruby gems:
- tlsmail on Ruby < 1.8.7
Most gems can be installed by simply running:
$ gem install <gem_name>
sudo at your own discretion. On Ruby < 1.8.7, some gems may not install and
complain about your Ruby version being too old. In that case, run:
$ gem install <gem_name> -f
gem to proceed with the installation.
Use the included
config-sample.yaml file as a template to create
config.yaml. The file should look like this:
db: driver: "mysql" host: "" username: "" password: "" database: "" ldap: host: "pm-ns.mozilla.org" port: 389 bind_dn: "" bind_password: "" ssl: enforced: true mail: enabled: true from: "firstname.lastname@example.org" ical: enabled: true
The database schema can be set up using the
db_setup task present in the
The LDAP server is used in two ways:
A user's credentials are used to bind to the LDAP server in order to confirm that it is valid; after validation a session is initiated until they log out. Other than this, the credentials are not used in any other way.
The credentials in the config file (the
bind_passwordfields) are currently used to prepopulate a sheriff's basic info (such as their full name) or by the various tasks in Rakefile.
SSL enforcement redirects all plain-text requests to their equivalent SSL URLs. It should be enabled as a good practice; it is particularly dangerous to send LDAP credentials in clear over the wire.
pony gem is used to send out email notifications for sheriffs who have
the option enabled. The
from field is in standard RFC format, i.e. the
following is valid:
from: "\"The Happy Sheriffbot\" <email@example.com>"
icalendar gem is used for providing iCal feeds. It can be optionally
disabled; the feature would then disappear from the UI.
Running on Passenger
The template files for the
config.ru used by Phusion Passenger (mod_rails)
The Rakefile contains various tasks that are either necessary for the Sheriff Duty app to continue to function properly, or useful for maintenance activities.
When run directly:
upcoming_notification are invoked by
default. These default tasks are meant to be run as a daily cron job.
This task assigns more sheriff for following weeks and runs every Wednesday; run it like this:
$ rake next_week_assignment weeks_ahead=2
weeks_ahead parameter it only fills one week ahead. It also makes
the assumption that on the weekends, no one specific is sheriffing and
#developer fills in.
This task is responsible for sending sheriffs emails
n days before their duty
depending how their preferences are set.
This task creates the necessary tables in the database. It requires the
database settings to be filled out correctly in
This task searches for sheriffs who don't have their fullname filled in and
does so by looking them up on the LDAP server and pulling in the
This task should be run with the
feed parameter, a URL to an iCal feed:
$ rake import_from_google_calendar feed=http://example.com/ical/feed.ics
When run with no
feed parameter, this iCal feed is used by default.
Since an iCal can contain several calendars, the first calendar is assumed.
Every day in the calendar is then scanned:
- If the
summaryof the day equals
#developers, it is skipped.
dtstartattribute is considered to be the date of the day.
- The sheriff on a given day is extracted from the
- Everything before the first opening parentheses is trimmed and then assumed
to be the full name, the
cnof a sheriff.
- Everything contained between the last pair of parentheses is trimmed and considered to be the nick of the sheriff.
- Everything before the first opening parentheses is trimmed and then assumed to be the full name, the
Since a sheriff is identified by the email address in the database, simply knowing the full name or the nick of a sheriff is not enough. The email address of a sheriff is looked up on the LDAP server in this order:
- The full name matches the
- The nick is a substring of the
- The nick is a substring of the
If none of the above occur, the sheriff / day is skipped and this is indicated in stderr. Additionally when a condition described above occurs but more than one entries match said condition, the sheriff / day is also skipped.