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-rw-r--r--plugins/mod_groups.lua128
1 files changed, 128 insertions, 0 deletions
diff --git a/plugins/mod_groups.lua b/plugins/mod_groups.lua
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+++ b/plugins/mod_groups.lua
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+-- Prosody IM
+-- Copyright (C) 2008-2010 Matthew Wild
+-- Copyright (C) 2008-2010 Waqas Hussain
+--
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+
+
+local groups;
+local members;
+
+local groups_file;
+
+local jid, datamanager = require "util.jid", require "util.datamanager";
+local jid_prep = jid.prep;
+
+local module_host = module:get_host();
+
+function inject_roster_contacts(username, host, roster)
+ --module:log("debug", "Injecting group members to roster");
+ local bare_jid = username.."@"..host;
+ if not members[bare_jid] and not members[false] then return; end -- Not a member of any groups
+
+ local function import_jids_to_roster(group_name)
+ for jid in pairs(groups[group_name]) do
+ -- Add them to roster
+ --module:log("debug", "processing jid %s in group %s", tostring(jid), tostring(group_name));
+ if jid ~= bare_jid then
+ if not roster[jid] then roster[jid] = {}; end
+ roster[jid].subscription = "both";
+ if groups[group_name][jid] then
+ roster[jid].name = groups[group_name][jid];
+ end
+ if not roster[jid].groups then
+ roster[jid].groups = { [group_name] = true };
+ end
+ roster[jid].groups[group_name] = true;
+ roster[jid].persist = false;
+ end
+ end
+ end
+
+ -- Find groups this JID is a member of
+ if members[bare_jid] then
+ for _, group_name in ipairs(members[bare_jid]) do
+ --module:log("debug", "Importing group %s", group_name);
+ import_jids_to_roster(group_name);
+ end
+ end
+
+ -- Import public groups
+ if members[false] then
+ for _, group_name in ipairs(members[false]) do
+ --module:log("debug", "Importing group %s", group_name);
+ import_jids_to_roster(group_name);
+ end
+ end
+
+ if roster[false] then
+ roster[false].version = true;
+ end
+end
+
+function remove_virtual_contacts(username, host, datastore, data)
+ if host == module_host and datastore == "roster" then
+ local new_roster = {};
+ for jid, contact in pairs(data) do
+ if contact.persist ~= false then
+ new_roster[jid] = contact;
+ end
+ end
+ if new_roster[false] then
+ new_roster[false].version = nil; -- Version is void
+ end
+ return username, host, datastore, new_roster;
+ end
+
+ return username, host, datastore, data;
+end
+
+function module.load()
+ groups_file = module:get_option_string("groups_file");
+ if not groups_file then return; end
+
+ module:hook("roster-load", inject_roster_contacts);
+ datamanager.add_callback(remove_virtual_contacts);
+
+ groups = { default = {} };
+ members = { };
+ local curr_group = "default";
+ for line in io.lines(groups_file) do
+ if line:match("^%s*%[.-%]%s*$") then
+ curr_group = line:match("^%s*%[(.-)%]%s*$");
+ if curr_group:match("^%+") then
+ curr_group = curr_group:gsub("^%+", "");
+ if not members[false] then
+ members[false] = {};
+ end
+ members[false][#members[false]+1] = curr_group; -- Is a public group
+ end
+ module:log("debug", "New group: %s", tostring(curr_group));
+ groups[curr_group] = groups[curr_group] or {};
+ else
+ -- Add JID
+ local entryjid, name = line:match("([^=]*)=?(.*)");
+ module:log("debug", "entryjid = '%s', name = '%s'", entryjid, name);
+ local jid;
+ jid = jid_prep(entryjid:match("%S+"));
+ if jid then
+ module:log("debug", "New member of %s: %s", tostring(curr_group), tostring(jid));
+ groups[curr_group][jid] = name or false;
+ members[jid] = members[jid] or {};
+ members[jid][#members[jid]+1] = curr_group;
+ end
+ end
+ end
+ module:log("info", "Groups loaded successfully");
+end
+
+function module.unload()
+ datamanager.remove_callback(remove_virtual_contacts);
+end
+
+-- Public for other modules to access
+function group_contains(group_name, jid)
+ return groups[group_name][jid];
+end