return setmetatable({
config = setmetatable(config, { __index = default_config });
affiliations = {};
+ subscriptions = {};
nodes = {};
}, service_mt);
end
+function service:jids_equal(jid1, jid2)
+ local normalize = self.config.normalize_jid;
+ return normalize(jid1) == normalize(jid2);
+end
+
function service:may(node, actor, action)
if actor == true then return true; end
-
local node_obj = self.nodes[node];
local node_aff = node_obj and node_obj.affiliations[actor];
local service_aff = self.affiliations[actor]
or self.config.get_affiliation(actor, node, action)
or "none";
+ -- Check if node allows/forbids it
local node_capabilities = node_obj and node_obj.capabilities;
- local service_capabilities = self.config.capabilities;
-
- -- Check if node allows/forbids it
if node_capabilities then
local caps = node_capabilities[node_aff or service_aff];
if caps then
end
end
end
+
-- Check service-wide capabilities instead
+ local service_capabilities = self.config.capabilities;
local caps = service_capabilities[node_aff or service_aff];
if caps then
local can = caps[action];
return false, "item-not-found";
end
node_obj.affiliations[jid] = affiliation;
- local _, jid_sub = self:get_subscription(node, nil, jid);
+ local _, jid_sub = self:get_subscription(node, true, jid);
if not jid_sub and not self:may(node, jid, "be_unsubscribed") then
- local ok, err = self:add_subscription(node, nil, jid);
+ local ok, err = self:add_subscription(node, true, jid);
if not ok then
return ok, err;
end
elseif jid_sub and not self:may(node, jid, "be_subscribed") then
- local ok, err = self:add_subscription(node, nil, jid);
+ local ok, err = self:add_subscription(node, true, jid);
if not ok then
return ok, err;
end
function service:add_subscription(node, actor, jid, options)
-- Access checking
local cap;
- if jid == actor or self.config.jids_equal(actor, jid) then
+ if actor == true or jid == actor or self:jids_equal(actor, jid) then
cap = "subscribe";
else
cap = "subscribe_other";
if not ok then
return ok, err;
end
+ node_obj = self.nodes[node];
end
end
node_obj.subscribers[jid] = options or true;
+ local normal_jid = self.config.normalize_jid(jid);
+ local subs = self.subscriptions[normal_jid];
+ if subs then
+ if not subs[jid] then
+ subs[jid] = { [node] = true };
+ else
+ subs[jid][node] = true;
+ end
+ else
+ self.subscriptions[normal_jid] = { [jid] = { [node] = true } };
+ end
return true;
end
function service:remove_subscription(node, actor, jid)
-- Access checking
local cap;
- if jid == actor or self.config.jids_equal(actor, jid) then
+ if actor == true or jid == actor or self:jids_equal(actor, jid) then
cap = "unsubscribe";
else
cap = "unsubscribe_other";
return false, "not-subscribed";
end
node_obj.subscribers[jid] = nil;
+ local normal_jid = self.config.normalize_jid(jid);
+ local subs = self.subscriptions[normal_jid];
+ if subs then
+ local jid_subs = subs[jid];
+ if jid_subs then
+ jid_subs[node] = nil;
+ if next(jid_subs) == nil then
+ subs[jid] = nil;
+ end
+ end
+ if next(subs) == nil then
+ self.subscriptions[normal_jid] = nil;
+ end
+ end
return true;
end
function service:get_subscription(node, actor, jid)
-- Access checking
local cap;
- if jid == actor or self.config.jids_equal(actor, jid) then
+ if actor == true or jid == actor or self:jids_equal(actor, jid) then
cap = "get_subscription";
else
cap = "get_subscription_other";
end
--
local node_obj = self.nodes[node];
- if node_obj then
- return true, node_obj.subscribers[jid];
+ if not node_obj then
+ return false, "item-not-found";
end
+ return true, node_obj.subscribers[jid];
end
function service:create(node, actor)
return true, self.nodes;
end
+function service:get_subscriptions(node, actor, jid)
+ -- Access checking
+ local cap;
+ if actor == true or jid == actor or self:jids_equal(actor, jid) then
+ cap = "get_subscriptions";
+ else
+ cap = "get_subscriptions_other";
+ end
+ if not self:may(node, actor, cap) then
+ return false, "forbidden";
+ end
+ --
+ local node_obj;
+ if node then
+ node_obj = self.nodes[node];
+ if not node_obj then
+ return false, "item-not-found";
+ end
+ end
+ local normal_jid = self.config.normalize_jid(jid);
+ local subs = self.subscriptions[normal_jid];
+ -- We return the subscription object from the node to save
+ -- a get_subscription() call for each node.
+ local ret = {};
+ if subs then
+ for jid, subscribed_nodes in pairs(subs) do
+ if node then -- Return only subscriptions to this node
+ if subscribed_nodes[node] then
+ ret[#ret+1] = {
+ node = subscribed_node;
+ jid = jid;
+ subscription = node_obj.subscribers[jid];
+ };
+ end
+ else -- Return subscriptions to all nodes
+ local nodes = self.nodes;
+ for subscribed_node in pairs(subscribed_nodes) do
+ ret[#ret+1] = {
+ node = subscribed_node;
+ jid = jid;
+ subscription = nodes[subscribed_node].subscribers[jid];
+ };
+ end
+ end
+ end
+ end
+ return true, ret;
+end
+
-- Access models only affect 'none' affiliation caps, service/default access level...
function service:set_node_capabilities(node, actor, capabilities)
-- Access checking