prosody-modules
d91cb13ef0ee
mod_privacy/mod_privacy.lua

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mod_privacy/mod_privacy.lua @ 27:d91cb13ef0ee

mod_privacy: make the block function work; retrieve the roster groups correctly
author Thilo Cestonaro <thilo@cestona.ro>
date Fri, 09 Oct 2009 23:23:12 +0200
parent 20:2675dc25445b
child 39:b84b2b026eb4
comparison
equal deleted inserted replaced
26:1fb5b8c20004 27:d91cb13ef0ee
18 local to_number = _G.tonumber; 18 local to_number = _G.tonumber;
19 19
20 function findNamedList (privacy_lists, name) 20 function findNamedList (privacy_lists, name)
21 local ret = nil 21 local ret = nil
22 if privacy_lists.lists == nil then 22 if privacy_lists.lists == nil then
23 module:log("debug", "no lists loaded.") 23 module:log("debug", "privacy_lists.list is nil. no lists loaded.")
24 return nil; 24 return nil;
25 end 25 end
26 26
27 module:log("debug", "searching for list: %s", name); 27 module:log("debug", "searching for list: %s", name);
28 for i=1, #privacy_lists.lists do 28 for i=1, #privacy_lists.lists do
115 115
116 if idx ~= nil then 116 if idx ~= nil then
117 if isListUsed(origin, name, privacy_lists) then 117 if isListUsed(origin, name, privacy_lists) then
118 return {"cancel", "conflict", "Another session is online and using the list which should be deleted."}; 118 return {"cancel", "conflict", "Another session is online and using the list which should be deleted."};
119 end 119 end
120 if privacy_lists.default == name then
121 privacy_lists.default = "";
122 end
123 if origin.activePrivacyList == name then
124 origin.activePrivacyList = "";
125 end
120 table.remove(privacy_lists.lists, idx); 126 table.remove(privacy_lists.lists, idx);
121 origin.send(st.reply(stanza)); 127 origin.send(st.reply(stanza));
122 return true; 128 return true;
123 end 129 end
124 return {"modify", "bad-request", "Not existing list specifed to be deleted."}; 130 return {"modify", "bad-request", "Not existing list specifed to be deleted."};
177 end 183 end
178 184
179 if tmp.type == "group" then 185 if tmp.type == "group" then
180 local found = false; 186 local found = false;
181 local roster = load_roster(origin.username, origin.host); 187 local roster = load_roster(origin.username, origin.host);
182 local groups = roster.groups; 188 for jid,item in pairs(roster) do
183 if groups == nil then 189 if item.groups ~= nil then
184 return {"cancel", "item-not-found", "Specifed roster group not existing."}; 190 for group in pairs(item.groups) do
185 end 191 if group == tmp.value then
186 for _,group in ipairs(groups) do 192 found = true;
187 if group == tmp.value then 193 break;
188 found = true; 194 end
195 end
196 if found == true then
197 break;
198 end
189 end 199 end
190 end 200 end
191 if found == false then 201 if found == false then
192 return {"cancel", "item-not-found", "Specifed roster group not existing."}; 202 return {"cancel", "item-not-found", "Specifed roster group not existing."};
193 end 203 end
319 end 329 end
320 return false; 330 return false;
321 end, 500); 331 end, 500);
322 332
323 function checkIfNeedToBeBlocked(e, session) 333 function checkIfNeedToBeBlocked(e, session)
334
324 local origin, stanza = e.origin, e.stanza; 335 local origin, stanza = e.origin, e.stanza;
325 local privacy_lists = datamanager.load(session.username, session.host, "privacy") or {}; 336 local privacy_lists = datamanager.load(session.username, session.host, "privacy") or {};
326 local bare_jid = session.username.."@"..session.host; 337 local bare_jid = session.username.."@"..session.host;
327 338
339 -- module:log("debug", "Where are we from: %s", debug.traceback())
328 module:log("debug", "checkIfNeedToBeBlocked: username: %s, host: %s", session.username, session.host); 340 module:log("debug", "checkIfNeedToBeBlocked: username: %s, host: %s", session.username, session.host);
329 module:log("debug", "stanza: %s, to: %s, form: %s", stanza.name, stanza.attr.to or "nil", stanza.attr.from or "nil"); 341 module:log("debug", "stanza: %s, to: %s, form: %s", stanza.name, stanza.attr.to or "nil", stanza.attr.from or "nil");
330 342
331 if privacy_lists.lists ~= nil and stanza.attr.to ~= nil and stanza.attr.from ~= nil then 343 if stanza.attr.to ~= nil and stanza.attr.from ~= nil then
332 if session.activePrivacyList == nil and privacy_lists.default == nil then 344 module:log("debug", "privacy_lists.lists: %s", tostring(privacy_lists.lists));
345 module:log("debug", "session.activePrivacyList: %s", tostring(session.activePrivacyList));
346 module:log("debug", "privacy_lists.default: %s", tostring(privacy_lists.default));
347 if privacy_lists.lists == nil or
348 (session.activePrivacyList == nil or session.activePrivacyList == "") and
349 (privacy_lists.default == nil or privacy_lists.default == "")
350 then
351 module:log("debug", "neither active nor default list set (both are nil) or privacy_lists totally nil. So nothing to do => default is Allow All.");
333 return; -- Nothing to block, default is Allow all 352 return; -- Nothing to block, default is Allow all
334 end 353 end
335 354
336 local idx; 355 local idx;
337 local list; 356 local list;
338 local item; 357 local item;
339 local listname = session.activePrivacyList; 358 local listname = session.activePrivacyList;
340 if listname == nil then 359 if listname == nil or listname == "" then
341 listname = privacy_lists.default; -- no active list selected, use default list 360 listname = privacy_lists.default; -- no active list selected, use default list
342 end 361 end
343 idx = findNamedList(privacy_lists, listname); 362 idx = findNamedList(privacy_lists, listname);
344 if idx == nil then 363 if idx == nil then
345 module:log("info", "given privacy listname not found."); 364 module:log("error", "given privacy listname not found. name: %s", listname);
346 return; 365 return;
347 end 366 end
348 list = privacy_lists.lists[idx]; 367 list = privacy_lists.lists[idx];
349 if list == nil then 368 if list == nil then
350 module:log("info", "privacy list index wrong."); 369 module:log("info", "privacy list index wrong. index: %d", idx);
351 return; 370 return;
352 end 371 end
353 for _,item in ipairs(list.items) do 372 for _,item in ipairs(list.items) do
354 local apply = false; 373 local apply = false;
355 local block = false; 374 local block = false;
356 if (stanza.name == "message" and item.message) or 375 if (stanza.name == "message" and item.message) then
357 (stanza.name == "iq" and item.iq) or 376 module:log("debug", "message stanza match.");
358 (stanza.name == "presence" and jid_bare(stanza.attr.to) == bare_jid and item["presence-in"]) or 377 apply = true;
359 (stanza.name == "presence" and jid_bare(stanza.attr.from) == bare_jid and item["presence-out"]) or 378 elseif (stanza.name == "iq" and item.iq) then
360 (item.message == false and item.iq == false and item["presence-in"] == false and item["presence-in"] == false) then 379 module:log("debug", "iq stanza match!");
361 module:log("debug", "stanza type matched."); 380 apply = true;
381 elseif (stanza.name == "presence" and jid_bare(stanza.attr.to) == bare_jid and item["presence-in"]) then
382 module:log("debug", "presence-in stanza match.");
383 apply = true;
384 elseif (stanza.name == "presence" and jid_bare(stanza.attr.from) == bare_jid and item["presence-out"]) then
385 module:log("debug", "presence-out stanza match");
386 apply = true;
387 elseif (item.message == false and item.iq == false and item["presence-in"] == false and item["presence-in"] == false) then
388 module:log("debug", "all is false, so apply.");
362 apply = true; 389 apply = true;
363 end 390 end
364 if apply then 391 if apply then
365 local evilJid = {}; 392 local evilJid = {};
366 apply = false; 393 apply = false;
367 if jid_bare(stanza.attr.to) == bare_jid then 394 if jid_bare(stanza.attr.to) == bare_jid then
395 module:log("debug", "evil jid is (from): %s", stanza.attr.from);
368 evilJid.node, evilJid.host, evilJid.resource = jid_split(stanza.attr.from); 396 evilJid.node, evilJid.host, evilJid.resource = jid_split(stanza.attr.from);
369 else 397 else
398 module:log("debug", "evil jid is (to): %s", stanza.attr.to);
370 evilJid.node, evilJid.host, evilJid.resource = jid_split(stanza.attr.to); 399 evilJid.node, evilJid.host, evilJid.resource = jid_split(stanza.attr.to);
371 end 400 end
401 module:log("debug", "Item Type: %s", tostring(item.type));
402 module:log("debug", "Item Action: %s", item.action);
372 if item.type == "jid" and 403 if item.type == "jid" and
373 (evilJid.node and evilJid.host and evilJid.resource and item.value == evilJid.node.."@"..evilJid.host.."/"..evilJid.resource) or 404 (evilJid.node and evilJid.host and evilJid.resource and item.value == evilJid.node.."@"..evilJid.host.."/"..evilJid.resource) or
374 (evilJid.node and evilJid.host and item.value == evilJid.node.."@"..evilJid.host) or 405 (evilJid.node and evilJid.host and item.value == evilJid.node.."@"..evilJid.host) or
375 (evilJid.host and evilJid.resource and item.value == evilJid.host.."/"..evilJid.resource) or 406 (evilJid.host and evilJid.resource and item.value == evilJid.host.."/"..evilJid.resource) or
376 (evilJid.host and item.value == evilJid.host) then 407 (evilJid.host and item.value == evilJid.host) then
377 module:log("debug", "jid matched."); 408 module:log("debug", "jid matched.");
378 apply = true; 409 apply = true;
379 block = (item.action == "deny"); 410 block = (item.action == "deny");
380 elseif item.type == "group" then 411 elseif item.type == "group" then
381 local roster = load_roster(session.username, session.host); 412 local roster = load_roster(session.username, session.host);
382 local groups = roster.groups; 413 local groups = roster[evilJid.node .. "@" .. evilJid.host].groups;
383 for _,group in ipairs(groups) do 414 for group in pairs(groups) do
384 if group == item.value then 415 if group == item.value then
385 module:log("debug", "group matched."); 416 module:log("debug", "group matched.");
386 apply = true; 417 apply = true;
387 block = (item.action == "deny"); 418 block = (item.action == "deny");
388 break; 419 break;
389 end 420 end
390 end 421 end
391 elseif item.type == "subscription" then 422 elseif item.type == "subscription" and evilJid.node ~= nil and evilJid.host ~= nil then -- we need a valid bare evil jid
392 if origin.roster[jid_bare(stanza.from)].subscription == item.value then 423 local roster = load_roster(session.username, session.host);
424 if roster[evilJid.node .. "@" .. evilJid.host].subscription == item.value then
393 module:log("debug", "subscription matched."); 425 module:log("debug", "subscription matched.");
394 apply = true; 426 apply = true;
395 block = (item.action == "deny"); 427 block = (item.action == "deny");
396 end 428 end
397 elseif item.type == nil then 429 elseif item.type == nil then
409 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); 441 origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
410 end 442 end
411 return true; -- stanza blocked ! 443 return true; -- stanza blocked !
412 else 444 else
413 module:log("info", "stanza explicit allowed!") 445 module:log("info", "stanza explicit allowed!")
446 return;
414 end 447 end
415 end 448 end
416 end 449 end
417 end 450 end
418 return; 451 return;