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Editing: access-snap.lua
-- Manage snap audio permissions -- -- Copyright © 2023 Canonical Ltd. -- @author Sergio Costas Rodriguez <sergio.costas@canonical.com> -- -- SPDX-License-Identifier: MIT function removeClientPermissionsForOtherClients (client) -- Remove access to any other clients, but allow all the process of the -- same snap to access their elements local client_id = client.properties["pipewire.snap.id"] for snap_client in clients_snap:iterate() do local snap_client_id = snap_client.properties["pipewire.snap.id"] if snap_client_id ~= client_id then client:update_permissions { [snap_client["bound-id"]] = "-" } end end for no_snap_client in clients_no_snap:iterate() do client:update_permissions { [no_snap_client["bound-id"]] = "-" } end end function updateClientPermissions (client) -- Remove access to Audio/Sources and Audio/Sinks based on snap permissions for node in nodes_om:iterate() do local node_id = node["bound-id"] local property = "pipewire.snap.audio.playback" if node.properties["media.class"] == "Audio/Source" then property = "pipewire.snap.audio.record" end if client.properties[property] ~= "true" then client:update_permissions { [node_id] = "-" } end end end clients_snap = ObjectManager { Interest { type = "client", Constraint { "pipewire.snap.id", "+", type = "pw"}, } } clients_no_snap = ObjectManager { Interest { type = "client", Constraint { "pipewire.snap.id", "-", type = "pw"}, } } nodes_om = ObjectManager { Interest { type = "node", Constraint { "media.class", "matches", "Audio/*"} } } clients_snap:connect("object-added", function (om, client) -- If a new snap client is added, adjust its permissions updateClientPermissions (client) removeClientPermissionsForOtherClients (client) end) clients_no_snap:connect("object-added", function (om, client) -- If a new, non-snap client is added, -- remove access to it from other snaps client_id = client["bound-id"] for snap_client in clients_snap:iterate() do if client.properties["pipewire.snap.id"] ~= nil then snap_client:update_permissions { [client_id] = "-" } end end end) nodes_om:connect("object-added", function (om, node) -- If a new Audio/Sink or Audio/Source node is added, -- adjust the permissions in the snap clients for client in clients_snap:iterate() do updateClientPermissions (client) end end) clients_snap:activate() clients_no_snap:activate() nodes_om:activate()
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