view mod_webpresence/mod_webpresence.lua @ 4210:a0937b5cfdcb

mod_invites_page: Remove preauth URI button This button is incompatible with the majority of XMPP clients around, yet based on feedback from users, many are drawn to click it when they have any XMPP client installed already. In the case where the user already has software installed, we would prefer them to select it from the software list so they can follow the setup process suited to their specific client (we already track which software supports preauth URIs). If their client is not listed, they can still use the manual registration link instead.
author Matthew Wild <mwild1@gmail.com>
date Fri, 16 Oct 2020 11:03:38 +0100
parents 1903add39b7c
children
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module:depends("http");

local jid_split = require "util.jid".prepped_split;
local b64 = require "util.encodings".base64.encode;
local sha1 = require "util.hashes".sha1;
local stanza = require "util.stanza".stanza;
local json = require "util.json".encode_ordered;

local function require_resource(name)
    local icon_path = module:get_option_string("presence_icons", "icons");
    local f, err  = module:load_resource(icon_path.."/"..name);
    if f then
        return f:read("*a");
    end
    module:log("warn", "Failed to open image file %s", icon_path..name);
    return "";
end

local statuses = { online = {}, away = {}, xa = {}, dnd = {}, chat = {}, offline = {} };

local function handle_request(event, path)
  local status, message;
  local jid, type = path:match("([^/]+)/?(.*)$");
  if jid then
    local user, host = jid_split(jid);
    if host and not user then
        user, host = host, event.request.headers.host;
        if host then host = host:gsub(":%d+$", ""); end
    end
    if user and host then
      local user_sessions = hosts[host] and hosts[host].sessions[user];
      if user_sessions and user_sessions.top_resources then
        status = user_sessions.top_resources[1];
        if status and status.presence then
          message = status.presence:child_with_name("status");
          status = status.presence:child_with_name("show");
          if not status then
            status = "online";
          else
            status = status:get_text();
          end
          if message then
            message = message:get_text();
          end
        end
      end
    end
  end
  status = status or "offline";

  statuses[status].image = function()
    return { status_code = 200, headers = { content_type = "image/png" },
      body =  require_resource("status_"..status..".png")
    };
  end;
  statuses[status].html = function()
    local jid_hash = sha1(jid, true);
    return { status_code = 200, headers = { content_type = "text/html" },
      body =  [[<!DOCTYPE html>]]..
        tostring(
          stanza("html")
            :tag("head")
            :tag("title"):text("XMPP Status Page for "..jid):up():up()
            :tag("body")
            :tag("div", { id = jid_hash.."_status", class = "xmpp_status" })
            :tag("img", { id = jid_hash.."_img", class = "xmpp_status_image xmpp_status_"..status,
              src = "data:image/png;base64,"..b64(require_resource("status_"..status..".png")) }):up()
            :tag("span", { id = jid_hash.."_status_name", class = "xmpp_status_name" })
              :text("\194\160"..status):up()
            :tag("span", { id = jid_hash.."_status_message", class = "xmpp_status_message" })
              :text(message and "\194\160"..message.."" or "")
        )
    };
  end;
  statuses[status].text = function()
    return { status_code = 200, headers = { content_type = "text/plain" },
      body = status
    };
  end;
  statuses[status].message = function()
    return { status_code = 200, headers = { content_type = "text/plain" },
      body = (message and message or "")
    };
  end;
  statuses[status].json = function()
    return { status_code = 200, headers = { content_type = "application/json" },
      body = json({
        jid    = jid,
        show   = status,
        status = (message and message or "null")
      })
    };
  end;
  statuses[status].xml = function()
    return { status_code = 200, headers = { content_type = "application/xml" },
      body = [[<?xml version="1.0" encoding="utf-8"?>]]..
        tostring(
          stanza("result")
            :tag("jid"):text(jid):up()
            :tag("show"):text(status):up()
            :tag("status"):text(message)
        )
      };
  end

  if ((type == "") or (not statuses[status][type])) then
    type = "image"
  end;

  return statuses[status][type]();
end

module:provides("http", {
    default_path = "/status";
    route = {
        ["GET /*"] = handle_request;
    };
});