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The use of the error helpers creates an `<error/>` child element
containing the error condition. This is however not allowed as per
XEP-0198, which specifies that the error condition is to be a direct
child of the `<failed/>` stream management element.
This has triggered a fun reconnect loop in aioxmpp where it was
reported by a user [1].
[1]: https://github.com/horazont/aioxmpp/issues/382
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New behaviour (muc_room_allow_persistent = true, the default):
- Parent host users are not restricted by default (prosody:user)
- Users without roles (by default that is non-admins, non-parent-host users,
and users on other servers) can no longer configure persistence by default.
muc_room_allow_persistent = false will restrict persistence to prosody:admin.
Parent-host users should not be restricted by default, and this can be
configured via the new roles/permissions options.
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change)
With this change and 427dd01f0864, room creation is now effectively restricted
to parent-host users by default. This is a better default than previous
Prosody versions (where room creation was not restricted).
The "local" option for restrict_room_creation is no longer used (any value
other than true/false won't change the default behaviour).
restrict_room_creation = true will grant prosody:admin the ability to create
rooms.
restrict_room_creation = false disables all permission checks.
Anything between these two can be achieved using custom roles and permissions.
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'host_user_role' is the default role of users who have JIDs on the "parent"
host (i.e. jabber.org users on conference.jabber.org). Defaults to
'prosody:user'.
'server_user_roles' is the default role of users who have JIDs on any active
host on the current Prosody instance. Default to nil (no role).
This finally allows better permissions splitting between host and server
users, which has previously been done (e.g. in MUC) with options like
'restrict_room_creation' and 'muc_room_allow_persistent'. Using roles makes
these permissions a lot more flexible, and easier for developers to integrate.
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Non-admins don't have a role on MUC services by default. Not even
prosody:user. This meant they had no :create-persistent-room permission, even
if muc_room_allow_persistent was true (the default).
Now we only check the role permissions if persistent room creation is
restricted, otherwise we skip any permission checks, just like previous
versions.
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This can happen to sessions before they are assigned a role
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muppeth)
Fixes
Error in SQL transaction: Error executing statement parameters: ERROR: invalid input syntax for integer
This was handled for INSERT in 9524bb7f3944 but not SELECT.
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It's now possible to bind during SASL2 negotiation.
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Some changes/improvements in this commit:
- Default token lifetime is now 3600s (from 300s)
- Tokens are only validated once per upload
- "iat"/"exp" are handled automatically by util.jwt
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...with opportunistic writes enabled.
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The old behaviour of falling back to the component domain when it is missing
has been merged into the logic for the existing "validate_from_addresses"
option (which is strict by default).
ejabberd already rejects component stanzas with no 'from' (as the XEP
requires), and this has led to compatibility issues for components that were
seemingly working fine with Prosody.
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See bd9e006a7a74
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This will allow us to return the success/failed as part of the SASL2 response,
and *then* perform the stanza sync as a second step.
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For luacheck, but it doesn't actually complain about this right now
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It used _G.print instead of the shell session print, which would
silently write to stdout
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By creating the account first without a password it can't be used until
the role has set. This is most important for restricted accounts, as a
failure to set the role would lead to the account having more privileges
than indented.
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This ensures that the store is not empty in case no password is
provided, so the underlying data storage won't consider the store empty.
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Otherwise, create_user(username, nil) leads to the account being
deleted.
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These changes to the API (hopefully the last) introduce a cleaner separation
between the user's primary (default) role, and their secondary (optional)
roles.
To keep the code sane and reduce complexity, a data migration is needed for
people using stored roles in 0.12. This can be performed with
prosodyctl mod_authz_internal migrate <host>
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This also updates the module to the new role API, and improves support for
scope/role selection (currently treated as the same thing, which they almost
are).
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This commit was too awkward to split (hg record didn't like it), so:
- Switch to the new util.roles lib to provide a consistent representation of
a role object.
- Change API method from get_role_info() to get_role_by_name() (touches
sessionmanager and usermanager)
- Change get_roles() to get_user_roles(), take a username instead of a JID
This is more consistent with all other usermanager API methods.
- Support configuration of custom roles and permissions via the config file
(to be documented).
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This is useful for a number of things. For example, listing users that need to
rotate their passwords after some event. It also provides a safer way for code
to determine that a user password has changed without needing to set a handler
for the password change event (which is a more fragile approach).
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We began moving away from simple "is this user an admin?" permission checks
before 0.12, with the introduction of mod_authz_internal and the ability to
dynamically change the roles of individual users.
The approach in 0.12 still had various limitations however, and apart from
the introduction of roles other than "admin" and the ability to pull that info
from storage, not much actually changed.
This new framework shakes things up a lot, though aims to maintain the same
functionality and behaviour on the surface for a default Prosody
configuration. That is, if you don't take advantage of any of the new
features, you shouldn't notice any change.
The biggest change visible to developers is that usermanager.is_admin() (and
the auth provider is_admin() method) have been removed. Gone. Completely.
Permission checks should now be performed using a new module API method:
module:may(action_name, context)
This method accepts an action name, followed by either a JID (string) or
(preferably) a table containing 'origin'/'session' and 'stanza' fields (e.g.
the standard object passed to most events). It will return true if the action
should be permitted, or false/nil otherwise.
Modules should no longer perform permission checks based on the role name.
E.g. a lot of code previously checked if the user's role was prosody:admin
before permitting some action. Since many roles might now exist with similar
permissions, and the permissions of prosody:admin may be redefined
dynamically, it is no longer suitable to use this method for permission
checks. Use module:may().
If you start an action name with ':' (recommended) then the current module's
name will automatically be used as a prefix.
To define a new permission, use the new module API:
module:default_permission(role_name, action_name)
module:default_permissions(role_name, { action_name[, action_name...] })
This grants the specified role permission to execute the named action(s) by
default. This may be overridden via other mechanisms external to your module.
The built-in roles that developers should use are:
- prosody:user (normal user)
- prosody:admin (host admin)
- prosody:operator (global admin)
The new prosody:operator role is intended for server-wide actions (such as
shutting down Prosody).
Finally, all usage of is_admin() in modules has been fixed by this commit.
Some of these changes were trickier than others, but no change is expected to
break existing deployments.
EXCEPT: mod_auth_ldap no longer supports the ldap_admin_filter option. It's
very possible nobody is using this, but if someone is then we can later update
it to pull roles from LDAP somehow.
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The 'scope' term derives from OAuth, and represents a bundle of permissions.
We're now setting on the term 'role' for a bundle of permissions.
This change does not affect any public modules I'm aware of.
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Sometimes you only care about a single attribute, but the child tag
itself may be optional, leading to needing `tag and tag.attr.foo` or
`stanza:find("tag@foo")`.
The `:find()` method is fairly complex, so avoiding it for this kind of
simpler use case is a win.
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Deprecated even before Prosody even started, obsolete for over a decade.
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Because why not? Who even has this module enabled?
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The "when" column is an INTEGER which will probably be unhappy about
storing higher precision timestamps, so we keep the older behavior for
now.
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Changes sub-second part of example timestamp to .5 in order to avoid
floating point issues.
Some clients use timestamps when ordering messages which can lead to
messages having the same timestamp ending up in the wrong order.
It would be better to preserve the order messages are sent in, which is
the order they were stored in.
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This 'config' argument was removed without explanation in d8dbf569766c
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This field can be viewed using s2s:show(nil, "... starttls") even
without any special support in mod_admin_shell, which can be added later
to make it nicer. One can then assume that a TLS connection with an
empty / nil starttls field means Direct TLS.
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