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mod_profile/mod_profile.lua @ 2590:63dd3e525f13
mod_http_muc_log: Add some comments
author | Kim Alvefur <zash@zash.se> |
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date | Wed, 01 Mar 2017 20:29:40 +0100 |
parent | 2413:b64c0150d663 |
child | 2790:5163f7905371 |
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-- mod_profile local st = require"util.stanza"; local jid_split = require"util.jid".split; local jid_bare = require"util.jid".bare; local is_admin = require"core.usermanager".is_admin; local vcard = require"util.vcard"; local base64 = require"util.encodings".base64; local sha1 = require"util.hashes".sha1; local t_insert, t_remove = table.insert, table.remove; local pep_plus; if module:get_host_type() == "local" and module:get_option_boolean("vcard_to_pep", true) then pep_plus = module:depends"pep_plus"; end local storage = module:open_store(); local legacy_storage = module:open_store("vcard"); local function get_item(vcard, name) local item; for i=1, #vcard do item=vcard[i]; if item.name == name then return item, i; end end end local magic_mime = { ["\137PNG\r\n\026\n"] = "image/png"; ["\255\216"] = "image/jpeg"; ["GIF87a"] = "image/gif"; ["GIF89a"] = "image/gif"; ["<?xml"] = "image/svg+xml"; } local function identify(data) for magic, mime in pairs(magic_mime) do if data:sub(1, #magic) == magic then return mime; end end return "application/octet-stream"; end local function update_pep(username, data, pep) pep = pep or pep_plus.get_pep_service(username.."@"..module.host); local photo, p = get_item(data, "PHOTO"); if vcard.to_vcard4 then if p then t_remove(data, p); end pep:purge("urn:xmpp:vcard4", true); pep:publish("urn:xmpp:vcard4", true, "current", st.stanza("item", {id="current"}) :add_child(vcard.to_vcard4(data))); if p then t_insert(data, p, photo); end end local nickname = get_item(data, "NICKNAME"); if nickname and nickname[1] then pep:purge("http://jabber.org/protocol/nick", true); pep:publish("http://jabber.org/protocol/nick", true, "current", st.stanza("item", {id="current"}) :tag("nick", { xmlns="http://jabber.org/protocol/nick" }):text(nickname[1])); end if photo and photo[1] then local photo_raw = base64.decode(photo[1]); local photo_hash = sha1(photo_raw, true); pep:purge("urn:xmpp:avatar:metadata", true); pep:purge("urn:xmpp:avatar:data", true); pep:publish("urn:xmpp:avatar:metadata", true, photo_hash, st.stanza("item", {id=photo_hash}) :tag("metadata", { xmlns="urn:xmpp:avatar:metadata" }) :tag("info", { bytes = tostring(#photo_raw), id = photo_hash, type = identify(photo_raw), })); pep:publish("urn:xmpp:avatar:data", true, photo_hash, st.stanza("item", {id=photo_hash}) :tag("data", { xmlns="urn:xmpp:avatar:data" }):text(photo[1])); end end -- The "temporary" vCard XEP-0054 part module:add_feature("vcard-temp"); local function handle_get(event) local origin, stanza = event.origin, event.stanza; local username = origin.username; local to = stanza.attr.to; if to then username = jid_split(to); end local data, err = storage:get(username); if not data then if err then origin.send(st.error_reply(stanza, "cancel", "internal-server-error", err)); return true; end data = legacy_storage:get(username); data = data and st.deserialize(data); if data then origin.send(st.reply(stanza):add_child(data)); return true; end end if not data then origin.send(st.error_reply(stanza, "cancel", "item-not-found")); return true; end origin.send(st.reply(stanza):add_child(vcard.to_xep54(data))); return true; end local function handle_set(event) local origin, stanza = event.origin, event.stanza; local data = vcard.from_xep54(stanza.tags[1]); local username = origin.username; local to = stanza.attr.to; if to then if not is_admin(jid_bare(stanza.attr.from), module.host) then origin.send(st.error_reply(stanza, "auth", "forbidden")); return true; end username = jid_split(to); end local ok, err = storage:set(username, data); if not ok then origin.send(st.error_reply(stanza, "cancel", "internal-server-error", err)); return true; end if pep_plus and username then update_pep(username, data); end origin.send(st.reply(stanza)); return true; end module:hook("iq-get/bare/vcard-temp:vCard", handle_get); module:hook("iq-get/host/vcard-temp:vCard", handle_get); module:hook("iq-set/bare/vcard-temp:vCard", handle_set); module:hook("iq-set/host/vcard-temp:vCard", handle_set); local function on_publish(event) if event.actor == true then return end -- Not from a client local node, item = event.node, event.item; local username, host = jid_split(event.actor); if host ~= module.host then module:log("warn", "on_publish() called for non-local actor"); for k,v in pairs(event) do module:log("debug", "event[%q] = %q", tosting(k), tostring(v)); end return; end local data = storage:get(username) or {}; if node == "urn:xmpp:avatar:data" then local new_photo = item:get_child_text("data", "urn:xmpp:avatar:data"); new_photo = new_photo and { name = "PHOTO"; ENCODING = { "b" }; new_photo } or nil; local _, i = get_item(data, "PHOTO") if new_photo then data[i or #data+1] = new_photo; elseif i then table.remove(data, i); end elseif node == "http://jabber.org/protocol/nick" then local new_nick = item:get_child_text("nick", "http://jabber.org/protocol/nick"); new_nick = new_nick and new_nick ~= "" and { name = "NICKNAME"; new_nick } or nil; local _, i = get_item(data, "NICKNAME") if new_nick then data[i or #data+1] = new_nick; elseif i then table.remove(data, i); end else return; end storage:set(username, data); end local function pep_service_added(event) local item = event.item; local service, username = item.service, jid_split(item.jid); service.events.add_handler("item-published", on_publish); local data = storage:get(username); if data then update_pep(username, data, service); end end local function pep_service_removed() -- This would happen when mod_pep_plus gets unloaded, but this module gets unloaded before that end function module.load() module:handle_items("pep-service", pep_service_added, pep_service_removed, true); end -- The vCard4 part if vcard.to_vcard4 then module:add_feature("urn:ietf:params:xml:ns:vcard-4.0"); module:hook("iq-get/bare/urn:ietf:params:xml:ns:vcard-4.0:vcard", function(event) local origin, stanza = event.origin, event.stanza; local username = jid_split(stanza.attr.to) or origin.username; local data = storage:get(username); if not data then origin.send(st.error_reply(stanza, "cancel", "item-not-found")); return true; end origin.send(st.reply(stanza):add_child(vcard.to_vcard4(data))); return true; end); if vcard.from_vcard4 then module:hook("iq-set/self/urn:ietf:params:xml:ns:vcard-4.0:vcard", function(event) local origin, stanza = event.origin, event.stanza; local ok, err = storage:set(origin.username, vcard.from_vcard4(stanza.tags[1])); if not ok then origin.send(st.error_reply(stanza, "cancel", "internal-server-error", err)); return true; end origin.send(st.reply(stanza)); return true; end); else module:hook("iq-set/self/urn:ietf:params:xml:ns:vcard-4.0:vcard", function(event) local origin, stanza = event.origin, event.stanza; origin.send(st.error_reply(stanza, "cancel", "feature-not-implemented")); return true; end); end end