Component permissions plugin
This plugin provides permissions based on ticket components. For example, having a component foobar it will provide permission COMPONENT_FOOBAR_VIEW which is then required to access the ticket with this component.
After installation you have to configure which field it checks to enable component permission checking:
[component-permissions] allow_reporter = false allow_owner = false allow_cc = false allow_cc_email = false
You should also add the component somewhere near the beginning of the permission_policies list:
permission_policies = ComponentPermissionsPolicy, DefaultPermissionPolicy, LegacyAttachmentPolicy
Additionally, you can require component permission only when a configured ticket field is checked. For example, this can be such custom ticket field:
[ticket-custom] privacy = checkbox privacy.label = Privacy sensitive privacy.value = 0
And you configure this plugin to use it:
[component-permissions] ticket_field_name = privacy
This will require component permission only when ticket is marked as privacy sensitive.
If you want only some components to have limited access, simply assign other components' permissions to the anonymous user.
There is also a special permission COMPONENT_VIEW which gives the user (or group) permission to see any ticket otherwise limited by component permissions.
If you want to allow ticket reporter, owner or users in CC list to have access to the ticket regardless of component permissions, you can set allow_reporter, allow_owner, and allow_cc to true, respectively. You can also use allow_cc_email to specify user's by their e-mail address (even if such user does not yet exist), but be careful, make sure users' e-mails are verified and that they cannot be freely changed to arbitrary values.
Download the zipped source from here.
pip install ComponentPermissionsPlugin
For more information, please follow documentation on how to install Trac's plugins.