snikket-server/snikket-modules/mod_update_notify/mod_update_notify.lua

117 lines
3.9 KiB
Lua

local urlencode = require "util.http".urlencode;
local interpolation = require "util.interpolation";
local render_url = interpolation.new("%b{}", urlencode);
local render_text = interpolation.new("%b{}", function (s) return s; end);
local security_notification = [[There is an important security release available
for {software}. The latest secure version is {current.branch}.{latest.secure}.
You are currently running {software} {current.branch}.{current.level}.
For more information please see: {url}
]];
local version_notification = [[There is a new {software} release available. You are
currently running {software} {current.branch}.{current.level}, and an upgrade to
{current.branch}.{latest.latest} is now available.
For more information please see: {url}
]];
local message_notification = [[There is a new announcement related to {software}, for more
information please see: {url}
]];
local support_notification = [[This version of {software} is no longer supported. For
more information please see: {url}
]]
local software_name = module:get_option_string("software_name");
local version_url = module:get_option_string("update_notify_version_url");
local support_url = module:get_option_string("update_notify_support_url");
local message_url = module:get_option_string("update_notify_message_url");
if not (software_name and version_url and support_url and message_url) then
return error("Requires software name, version, support and message URLs to be set");
end
local admin_notify = module:depends("admin_notify").notify;
local notified_store = module:open_store("update_notifications", "map");
local function have_notified(branch, field, value)
local notified_value = notified_store:get(branch, field);
if notified_value then
if type(value) == "number" and notified_value >= value then
return true;
elseif notified_value == value then
return true;
end
end
notified_store:set(branch, field, value);
return false;
end
module:hook("update-check/result", function (event)
local branch = event.current.branch;
local ver_secure = tonumber(event.latest.secure);
local ver_latest = tonumber(event.latest.latest);
local ver_installed = tonumber(event.current.level);
local msg_latest = tonumber(event.latest.msg);
if not ver_installed then
module:log_status("error", "Unable to determine local version number");
return;
end
if ver_secure and ver_installed < ver_secure
and not have_notified(branch, "secure", ver_secure) then
module:log_status("warn", "Security update available!");
admin_notify(render_text(security_notification, {
software = software_name;
current = event.current;
latest = event.latest;
url = render_url(version_url, { branch = branch, version = event.latest.secure });
}));
return;
end
if ver_latest and ver_installed < ver_latest
and not have_notified(branch, "latest", ver_latest) then
module:log_status("info", "Update available!");
admin_notify(render_text(version_notification, {
software = software_name;
current = event.current;
latest = event.latest;
url = render_url(version_url, { branch = branch, version = event.latest.latest });
}));
return;
end
if msg_latest and not have_notified(branch, "msg", msg_latest) then
module:log_status("info", "New announcement");
admin_notify(render_text(message_notification, {
software = software_name;
current = event.current;
latest = event.latest;
url = render_url(message_url, { branch = branch, message = msg_latest });
}));
return;
end
if not have_notified(branch, "support_status", event.latest.support_status) then
if event.latest.support_status == "unsupported" then
module:log_status("warn", "%s is no longer supported", branch);
admin_notify(render_text(support_notification, {
software = software_name;
current = event.current;
latest = event.latest;
url = render_url(support_url, { branch = branch });
}));
return;
end
end
end);