70 lines
3.4 KiB
Python
70 lines
3.4 KiB
Python
# Authentik expression policy: sync a member's Discord ROLES into Authentik GROUPS at every login.
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# Paste into: Customization -> Policies -> Create -> Expression Policy (name: discord-roles-to-groups)
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# Bind to BOTH flows (after discord-guild-member): default-source-enrollment and default-source-authentication.
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# Requires the "guilds.members.read" scope on the Discord source (source -> Protocol settings -> Scopes:
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# guilds guilds.members.read ). Existing users re-consent once at Discord.
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# The Authentik groups must already exist (Directory -> Groups). Role IDs: Discord Developer Mode ->
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# Server Settings -> Roles -> right-click a role -> Copy Role ID.
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# Manual memberships are safe: the policy only removes groups it granted itself (user attribute discord_role_groups).
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GUILD_ID = "1387203044084551690" # <- your Discord server ID
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ROLE_TO_GROUP = { # <- Discord role id : Authentik group name
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"1387239222070612110": "bot-users",
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"1515901670943490129": "bot-users",
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# "222222222222222222": "streamers",
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# "333333333333333333": "editors",
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# "444444444444444444": "admins",
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"555555555555555555": "git-users",
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}
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from authentik.core.models import Group
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source = context.get("source")
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if not source or getattr(source, "provider_type", "") != "discord":
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return True # not a Discord login (e.g. akadmin): nothing to sync
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connection = context.get("goauthentik.io/sources/connection")
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if not connection:
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return True
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resp = requests.get(
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f"https://discord.com/api/users/@me/guilds/{GUILD_ID}/member",
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headers={"Authorization": f"Bearer {connection.access_token}"},
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timeout=10,
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)
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if resp.status_code != 200:
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ak_message(f"Could not read your Discord roles ({resp.status_code}); groups unchanged.")
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return True # don't block login on a Discord hiccup
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roles = set(resp.json().get("roles", []))
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wanted = {g for r, g in ROLE_TO_GROUP.items() if r in roles}
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managed = set(ROLE_TO_GROUP.values())
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# Authentication flow: the user exists -> edit memberships directly.
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# Only memberships THIS policy granted earlier are ever removed (tracked in user.attributes["discord_role_groups"]),
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# so a group someone was added to by hand in Authentik survives role changes and re-logins.
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user = context.get("pending_user") or (request.user if request.user.is_authenticated else None)
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if user and user.pk:
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attrs = user.attributes or {}
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granted = set(attrs.get("discord_role_groups", []))
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for group in Group.objects.filter(name__in=managed):
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if group.name in wanted:
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group.users.add(user)
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granted.add(group.name)
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elif group.name in granted:
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group.users.remove(user) # role gone -> take back what the role had given
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granted.discard(group.name)
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attrs["discord_role_groups"] = sorted(granted)
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user.attributes = attrs
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user.save()
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return True
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# Enrollment flow: the user is created later by the user-write stage; hand it the groups to attach and
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# record them as role-granted so a later role removal can revoke exactly these.
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plan = context.get("flow_plan")
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if plan is not None:
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plan.context["groups"] = list(Group.objects.filter(name__in=wanted))
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prompt = plan.context.setdefault("prompt_data", {})
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prompt.setdefault("attributes", {})["discord_role_groups"] = sorted(wanted)
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return True
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