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mod_external_services: Filter services by requested credentials using a Set

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Please don't be accidentally quadratic.
This commit is contained in:
Kim Alvefur 2021-08-30 20:19:09 +02:00
parent d915f98800
commit e8b53c328e
1 changed files with 21 additions and 23 deletions
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44
plugins/mod_external_services.lua
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@ -5,6 +5,7 @@ local hashes = require "util.hashes";
local st = require "util.stanza";
local jid = require "util.jid";
local array = require "util.array";
local set = require "util.set";
local default_host = module:get_option_string("external_service_host", module.host);
local default_port = module:get_option_number("external_service_port");
@ -186,22 +187,18 @@ local function handle_credentials(event)
return item.restricted;
end)
local requested_credentials = {};
local requested_credentials = set.new();
for service in action:childtags("service") do
if not service.attr.type or not service.attr.host then
origin.send(st.error_reply(stanza, "modify", "bad-request"));
return true;
end
table.insert(requested_credentials, {
type = service.attr.type;
host = service.attr.host;
port = tonumber(service.attr.port);
});
requested_credentials:add(string.format("%s:%s:%d", service.attr.type, service.attr.host,
tonumber(service.attr.port) or 0));
end
setmetatable(services, services_mt);
setmetatable(requested_credentials, services_mt);
module:fire_event("external_service/credentials", {
origin = origin;
@ -211,22 +208,23 @@ local function handle_credentials(event)
services = services;
});
for req_srv in action:childtags("service") do
for _, srv in ipairs(services) do
if srv.type == req_srv.attr.type and srv.host == req_srv.attr.host
and not req_srv.attr.port or srv.port == tonumber(req_srv.attr.port) then
reply:tag("service", {
type = srv.type;
transport = srv.transport;
host = srv.host;
port = srv.port and string.format("%d", srv.port) or nil;
username = srv.username;
password = srv.password;
expires = srv.expires and dt.datetime(srv.expires) or nil;
restricted = srv.restricted and "1" or nil;
}):up();
end
end
services:filter(function (srv)
local port_key = string.format("%s:%s:%d", srv.type, srv.host, srv.port or 0);
local portless_key = string.format("%s:%s:%d", srv.type, srv.host, 0);
return requested_credentials:contains(port_key) or requested_credentials:contains(portless_key);
end);
for _, srv in ipairs(services) do
reply:tag("service", {
type = srv.type;
transport = srv.transport;
host = srv.host;
port = srv.port and string.format("%d", srv.port) or nil;
username = srv.username;
password = srv.password;
expires = srv.expires and dt.datetime(srv.expires) or nil;
restricted = srv.restricted and "1" or nil;
}):up();
end
origin.send(reply);