view mod_listusers/mod_listusers.lua @ 5186:fa3059e653fa

mod_http_oauth2: Implement the Implicit flow Everyone says this is insecure and bad, but it's also the only thing that makes sense for e.g. pure JavaScript clients, but hey implement this even more complicated thing instead!
author Kim Alvefur <zash@zash.se>
date Thu, 02 Mar 2023 22:06:50 +0100
parents b307b72ae527
children
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function module.command(args)
  local action = table.remove(args, 1);
  if not action then -- Default, list registered users
    local data_path = CFG_DATADIR or "data";
    if not pcall(require, "luarocks.loader") then
      pcall(require, "luarocks.require");
    end
    local lfs = require "lfs";
    function decode(s)
      return s:gsub("%%([a-fA-F0-9][a-fA-F0-9])", function (c)
        return string.char(tonumber("0x"..c));
      end);
    end
    for host in lfs.dir(data_path) do
      local accounts = data_path.."/"..host.."/accounts";
      if lfs.attributes(accounts, "mode") == "directory" then
        for user in lfs.dir(accounts) do
          if user:sub(1,1) ~= "." then
            print(decode(user:gsub("%.dat$", "")).."@"..decode(host));
          end
        end
      end
    end
  elseif action == "--connected" then -- List connected users
    local socket = require "socket";
    local default_local_interfaces = { };
    if socket.tcp6 and config.get("*", "use_ipv6") ~= false then
      table.insert(default_local_interfaces, "::1");
    end
    if config.get("*", "use_ipv4") ~= false then
      table.insert(default_local_interfaces, "127.0.0.1");
    end

    local console_interfaces = config.get("*", "console_interfaces")
      or config.get("*", "local_interfaces")
      or default_local_interfaces
    console_interfaces = type(console_interfaces)~="table"
      and {console_interfaces} or console_interfaces;

    local console_ports = config.get("*", "console_ports") or 5582
    console_ports = type(console_ports) ~= "table" and { console_ports } or console_ports;

    local st, conn = pcall(assert,socket.connect(console_interfaces[1], console_ports[1]));
    if (not st) then print("Error"..(conn and ": "..conn or "")); return 1; end

    local banner = config.get("*", "console_banner");
    if (
      (not banner) or
      (
        (type(banner) == "string") and
        (banner:match("^|    (.+)$"))
      )
    ) then
      repeat
        local rec_banner = conn:receive()
      until
        rec_banner == "" or
        rec_banner == nil; -- skip banner
    end

    conn:send("c2s:show()\n");
    conn:settimeout(1); -- Only hit in case of failure

    repeat local line = conn:receive()
      if not line then break; end
      local jid = line:match("^|    (.+)$");
      if jid then
        jid = jid:gsub(" %- (%w+%(%d+%))$", "\t%1");
        print(jid);
      elseif line:match("^| OK:") then
        return 0;
      end
    until false;
  end
  return 0;
end