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-rw-r--r--util/async.lua173
-rw-r--r--util/dependencies.lua10
-rw-r--r--util/indexedbheap.lua157
-rw-r--r--util/pubsub.lua12
-rw-r--r--util/random.lua4
-rw-r--r--util/stanza.lua15
-rw-r--r--util/throttle.lua4
-rw-r--r--util/timer.lua142
-rw-r--r--util/vcard.lua582
-rw-r--r--util/xml.lua23
10 files changed, 1043 insertions, 79 deletions
diff --git a/util/async.lua b/util/async.lua
new file mode 100644
index 00000000..2aff2f2d
--- /dev/null
+++ b/util/async.lua
@@ -0,0 +1,173 @@
+local log = require "util.logger".init("util.async");
+
+local function runner_continue(thread)
+ -- ASSUMPTION: runner is in 'waiting' state (but we don't have the runner to know for sure)
+ if coroutine.status(thread) ~= "suspended" then -- This should suffice
+ return false;
+ end
+ local ok, state, runner = coroutine.resume(thread);
+ if not ok then
+ -- Running the coroutine failed, which means we have to find the runner manually,
+ -- in order to inform the error handler
+ local level = 0;
+ while debug.getinfo(thread, level, "") do level = level + 1; end
+ ok, runner = debug.getlocal(thread, level-1, 1);
+ local error_handler = runner.watchers.error;
+ if error_handler then error_handler(runner, debug.traceback(thread, state)); end
+ elseif state == "ready" then
+ -- If state is 'ready', it is our responsibility to update runner.state from 'waiting'.
+ -- We also have to :run(), because the queue might have further items that will not be
+ -- processed otherwise. FIXME: It's probably best to do this in a nexttick (0 timer).
+ runner.state = "ready";
+ runner:run();
+ end
+ return true;
+end
+
+local function waiter(num)
+ local thread = coroutine.running();
+ if not thread then
+ error("Not running in an async context, see https://prosody.im/doc/developers/util/async");
+ end
+ num = num or 1;
+ local waiting;
+ return function ()
+ if num == 0 then return; end -- already done
+ waiting = true;
+ coroutine.yield("wait");
+ end, function ()
+ num = num - 1;
+ if num == 0 and waiting then
+ runner_continue(thread);
+ elseif num < 0 then
+ error("done() called too many times");
+ end
+ end;
+end
+
+local function guarder()
+ local guards = {};
+ return function (id, func)
+ local thread = coroutine.running();
+ if not thread then
+ error("Not running in an async context, see https://prosody.im/doc/developers/util/async");
+ end
+ local guard = guards[id];
+ if not guard then
+ guard = {};
+ guards[id] = guard;
+ log("debug", "New guard!");
+ else
+ table.insert(guard, thread);
+ log("debug", "Guarded. %d threads waiting.", #guard)
+ coroutine.yield("wait");
+ end
+ local function exit()
+ local next_waiting = table.remove(guard, 1);
+ if next_waiting then
+ log("debug", "guard: Executing next waiting thread (%d left)", #guard)
+ runner_continue(next_waiting);
+ else
+ log("debug", "Guard off duty.")
+ guards[id] = nil;
+ end
+ end
+ if func then
+ func();
+ exit();
+ return;
+ end
+ return exit;
+ end;
+end
+
+local runner_mt = {};
+runner_mt.__index = runner_mt;
+
+local function runner_create_thread(func, self)
+ local thread = coroutine.create(function (self) -- luacheck: ignore 432/self
+ while true do
+ func(coroutine.yield("ready", self));
+ end
+ end);
+ assert(coroutine.resume(thread, self)); -- Start it up, it will return instantly to wait for the first input
+ return thread;
+end
+
+local empty_watchers = {};
+local function runner(func, watchers, data)
+ return setmetatable({ func = func, thread = false, state = "ready", notified_state = "ready",
+ queue = {}, watchers = watchers or empty_watchers, data = data }
+ , runner_mt);
+end
+
+-- Add a task item for the runner to process
+function runner_mt:run(input)
+ if input ~= nil then
+ table.insert(self.queue, input);
+ end
+ if self.state ~= "ready" then
+ -- The runner is busy. Indicate that the task item has been
+ -- queued, and return information about the current runner state
+ return true, self.state, #self.queue;
+ end
+
+ local q, thread = self.queue, self.thread;
+ if not thread or coroutine.status(thread) == "dead" then
+ -- Create a new coroutine for this runner
+ thread = runner_create_thread(self.func, self);
+ self.thread = thread;
+ end
+
+ -- Process task item(s) while the queue is not empty, and we're not blocked
+ local n, state, err = #q, self.state, nil;
+ self.state = "running";
+ while n > 0 and state == "ready" do
+ local consumed;
+ -- Loop through queue items, and attempt to run them
+ for i = 1,n do
+ local queued_input = q[i];
+ local ok, new_state = coroutine.resume(thread, queued_input);
+ if not ok then
+ -- There was an error running the coroutine, save the error, mark runner as ready to begin again
+ consumed, state, err = i, "ready", debug.traceback(thread, new_state);
+ self.thread = nil;
+ break;
+ elseif new_state == "wait" then
+ -- Runner is blocked on waiting for a task item to complete
+ consumed, state = i, "waiting";
+ break;
+ end
+ end
+ -- Loop ended - either queue empty because all tasks passed without blocking (consumed == nil)
+ -- or runner is blocked/errored, and consumed will contain the number of tasks processed so far
+ if not consumed then consumed = n; end
+ -- Remove consumed items from the queue array
+ if q[n+1] ~= nil then
+ n = #q;
+ end
+ for i = 1, n do
+ q[i] = q[consumed+i];
+ end
+ n = #q;
+ end
+ -- Runner processed all items it can, so save current runner state
+ self.state = state;
+ if err or state ~= self.notified_state then
+ if err then
+ state = "error"
+ else
+ self.notified_state = state;
+ end
+ local handler = self.watchers[state];
+ if handler then handler(self, err); end
+ end
+ return true, state, n;
+end
+
+-- Add a task item to the queue without invoking the runner, even if it is idle
+function runner_mt:enqueue(input)
+ table.insert(self.queue, input);
+end
+
+return { waiter = waiter, guarder = guarder, runner = runner };
diff --git a/util/dependencies.lua b/util/dependencies.lua
index de840241..9b0afd77 100644
--- a/util/dependencies.lua
+++ b/util/dependencies.lua
@@ -28,7 +28,7 @@ local function missingdep(name, sources, msg)
end
print("");
print(msg or (name.." is required for Prosody to run, so we will now exit."));
- print("More help can be found on our website, at http://prosody.im/doc/depends");
+ print("More help can be found on our website, at https://prosody.im/doc/depends");
print("**************************");
print("");
end
@@ -40,7 +40,7 @@ end
package.preload["util.ztact"] = function ()
if not package.loaded["core.loggingmanager"] then
error("util.ztact has been removed from Prosody and you need to fix your config "
- .."file. More information can be found at http://prosody.im/doc/packagers#ztact", 0);
+ .."file. More information can be found at https://prosody.im/doc/packagers#ztact", 0);
else
error("module 'util.ztact' has been deprecated in Prosody 0.8.");
end
@@ -156,7 +156,7 @@ local function log_warnings()
if ssl then
local major, minor, veryminor, patched = ssl._VERSION:match("(%d+)%.(%d+)%.?(%d*)(M?)");
if not major or ((tonumber(major) == 0 and (tonumber(minor) or 0) <= 3 and (tonumber(veryminor) or 0) <= 2) and patched ~= "M") then
- prosody.log("error", "This version of LuaSec contains a known bug that causes disconnects, see http://prosody.im/doc/depends");
+ prosody.log("error", "This version of LuaSec contains a known bug that causes disconnects, see https://prosody.im/doc/depends");
end
end
local lxp = softreq"lxp";
@@ -165,7 +165,7 @@ local function log_warnings()
prosody.log("error", "The version of LuaExpat on your system leaves Prosody "
.."vulnerable to denial-of-service attacks. You should upgrade to "
.."LuaExpat 1.3.0 or higher as soon as possible. See "
- .."http://prosody.im/doc/depends#luaexpat for more information.");
+ .."https://prosody.im/doc/depends#luaexpat for more information.");
end
if not lxp.new({}).getcurrentbytecount then
prosody.log("error", "The version of LuaExpat on your system does not support "
@@ -173,7 +173,7 @@ local function log_warnings()
.."networks (e.g. the internet) vulnerable to denial-of-service "
.."attacks. You should upgrade to LuaExpat 1.3.0 or higher as "
.."soon as possible. See "
- .."http://prosody.im/doc/depends#luaexpat for more information.");
+ .."https://prosody.im/doc/depends#luaexpat for more information.");
end
end
end
diff --git a/util/indexedbheap.lua b/util/indexedbheap.lua
new file mode 100644
index 00000000..c60861e8
--- /dev/null
+++ b/util/indexedbheap.lua
@@ -0,0 +1,157 @@
+
+local setmetatable = setmetatable;
+local math_floor = math.floor;
+local t_remove = table.remove;
+
+local function _heap_insert(self, item, sync, item2, index)
+ local pos = #self + 1;
+ while true do
+ local half_pos = math_floor(pos / 2);
+ if half_pos == 0 or item > self[half_pos] then break; end
+ self[pos] = self[half_pos];
+ sync[pos] = sync[half_pos];
+ index[sync[pos]] = pos;
+ pos = half_pos;
+ end
+ self[pos] = item;
+ sync[pos] = item2;
+ index[item2] = pos;
+end
+
+local function _percolate_up(self, k, sync, index)
+ local tmp = self[k];
+ local tmp_sync = sync[k];
+ while k ~= 1 do
+ local parent = math_floor(k/2);
+ if tmp < self[parent] then break; end
+ self[k] = self[parent];
+ sync[k] = sync[parent];
+ index[sync[k]] = k;
+ k = parent;
+ end
+ self[k] = tmp;
+ sync[k] = tmp_sync;
+ index[tmp_sync] = k;
+ return k;
+end
+
+local function _percolate_down(self, k, sync, index)
+ local tmp = self[k];
+ local tmp_sync = sync[k];
+ local size = #self;
+ local child = 2*k;
+ while 2*k <= size do
+ if child ~= size and self[child] > self[child + 1] then
+ child = child + 1;
+ end
+ if tmp > self[child] then
+ self[k] = self[child];
+ sync[k] = sync[child];
+ index[sync[k]] = k;
+ else
+ break;
+ end
+
+ k = child;
+ child = 2*k;
+ end
+ self[k] = tmp;
+ sync[k] = tmp_sync;
+ index[tmp_sync] = k;
+ return k;
+end
+
+local function _heap_pop(self, sync, index)
+ local size = #self;
+ if size == 0 then return nil; end
+
+ local result = self[1];
+ local result_sync = sync[1];
+ index[result_sync] = nil;
+ if size == 1 then
+ self[1] = nil;
+ sync[1] = nil;
+ return result, result_sync;
+ end
+ self[1] = t_remove(self);
+ sync[1] = t_remove(sync);
+ index[sync[1]] = 1;
+
+ _percolate_down(self, 1, sync, index);
+
+ return result, result_sync;
+end
+
+local indexed_heap = {};
+
+function indexed_heap:insert(item, priority, id)
+ if id == nil then
+ id = self.current_id;
+ self.current_id = id + 1;
+ end
+ self.items[id] = item;
+ _heap_insert(self.priorities, priority, self.ids, id, self.index);
+ return id;
+end
+function indexed_heap:pop()
+ local priority, id = _heap_pop(self.priorities, self.ids, self.index);
+ if id then
+ local item = self.items[id];
+ self.items[id] = nil;
+ return priority, item, id;
+ end
+end
+function indexed_heap:peek()
+ return self.priorities[1];
+end
+function indexed_heap:reprioritize(id, priority)
+ local k = self.index[id];
+ if k == nil then return; end
+ self.priorities[k] = priority;
+
+ k = _percolate_up(self.priorities, k, self.ids, self.index);
+ k = _percolate_down(self.priorities, k, self.ids, self.index);
+end
+function indexed_heap:remove_index(k)
+ local result = self.priorities[k];
+ if result == nil then return; end
+
+ local result_sync = self.ids[k];
+ local item = self.items[result_sync];
+ local size = #self.priorities;
+
+ self.priorities[k] = self.priorities[size];
+ self.ids[k] = self.ids[size];
+ self.index[self.ids[k]] = k;
+
+ t_remove(self.priorities);
+ t_remove(self.ids);
+
+ self.index[result_sync] = nil;
+ self.items[result_sync] = nil;
+
+ if size > k then
+ k = _percolate_up(self.priorities, k, self.ids, self.index);
+ k = _percolate_down(self.priorities, k, self.ids, self.index);
+ end
+
+ return result, item, result_sync;
+end
+function indexed_heap:remove(id)
+ return self:remove_index(self.index[id]);
+end
+
+local mt = { __index = indexed_heap };
+
+local _M = {
+ create = function()
+ return setmetatable({
+ ids = {}; -- heap of ids, sync'd with priorities
+ items = {}; -- map id->items
+ priorities = {}; -- heap of priorities
+ index = {}; -- map of id->index of id in ids
+ current_id = 1.5
+ }, mt);
+ end
+};
+return _M;
diff --git a/util/pubsub.lua b/util/pubsub.lua
index 1db917d8..014aaa86 100644
--- a/util/pubsub.lua
+++ b/util/pubsub.lua
@@ -5,7 +5,7 @@ local service = {};
local service_mt = { __index = service };
local default_config = { __index = {
- itemstore = function (config) return cache.new(tonumber(config["pubsub#max_items"])) end;
+ itemstore = function (config, _) return cache.new(tonumber(config["pubsub#max_items"])) end;
broadcaster = function () end;
get_affiliation = function () end;
capabilities = {};
@@ -223,7 +223,7 @@ function service:create(node, actor, options)
config = setmetatable(options or {}, {__index=self.node_defaults});
affiliations = {};
};
- self.data[node] = self.config.itemstore(self.nodes[node].config);
+ self.data[node] = self.config.itemstore(self.nodes[node].config, node);
self.events.fire_event("node-created", { node = node, actor = actor });
local ok, err = self:set_affiliation(node, true, actor, "owner");
if not ok then
@@ -268,10 +268,14 @@ function service:publish(node, actor, id, item)
node_obj = self.nodes[node];
end
local node_data = self.data[node];
+ if type(actor) == "string" then
+ item.attr.publisher = actor;
+ end
local ok = node_data:set(id, item);
if not ok then
return nil, "internal-server-error";
end
+ if type(ok) == "string" then id = ok; end
self.events.fire_event("item-published", { node = node, actor = actor, id = id, item = item });
self.config.broadcaster("items", node, node_obj.subscribers, item, actor);
return true;
@@ -308,7 +312,7 @@ function service:purge(node, actor, notify)
if not node_obj then
return false, "item-not-found";
end
- self.data[node] = self.config.itemstore(self.nodes[node].config);
+ self.data[node] = self.config.itemstore(self.nodes[node].config, node);
self.events.fire_event("node-purged", { node = node, actor = actor });
if notify then
self.config.broadcaster("purge", node, node_obj.subscribers);
@@ -424,7 +428,7 @@ function service:set_node_config(node, actor, new_config)
for k,v in pairs(new_config) do
node_obj.config[k] = v;
end
- local new_data = self.config.itemstore(self.nodes[node].config);
+ local new_data = self.config.itemstore(self.nodes[node].config, node);
for key, value in self.data[node]:items() do
new_data:set(key, value);
end
diff --git a/util/random.lua b/util/random.lua
index b2d0000d..d8a84514 100644
--- a/util/random.lua
+++ b/util/random.lua
@@ -11,9 +11,6 @@ if ok then return crand; end
local urandom, urandom_err = io.open("/dev/urandom", "r");
-local function seed()
-end
-
local function bytes(n)
return urandom:read(n);
end
@@ -25,7 +22,6 @@ if not urandom then
end
return {
- seed = seed;
bytes = bytes;
_source = "/dev/urandom";
};
diff --git a/util/stanza.lua b/util/stanza.lua
index 2191fa8e..651c1973 100644
--- a/util/stanza.lua
+++ b/util/stanza.lua
@@ -41,8 +41,8 @@ local _ENV = nil;
local stanza_mt = { __type = "stanza" };
stanza_mt.__index = stanza_mt;
-local function new_stanza(name, attr)
- local stanza = { name = name, attr = attr or {}, tags = {} };
+local function new_stanza(name, attr, namespaces)
+ local stanza = { name = name, attr = attr or {}, namespaces = namespaces, tags = {} };
return setmetatable(stanza, stanza_mt);
end
@@ -58,8 +58,8 @@ function stanza_mt:body(text, attr)
return self:tag("body", attr):text(text);
end
-function stanza_mt:tag(name, attrs)
- local s = new_stanza(name, attrs);
+function stanza_mt:tag(name, attr, namespaces)
+ local s = new_stanza(name, attr, namespaces);
local last_add = self.last_add;
if not last_add then last_add = {}; self.last_add = last_add; end
(last_add[#last_add] or self):add_direct_child(s);
@@ -337,7 +337,12 @@ end
local function clone(stanza)
local attr, tags = {}, {};
for k,v in pairs(stanza.attr) do attr[k] = v; end
- local new = { name = stanza.name, attr = attr, tags = tags };
+ local old_namespaces, namespaces = stanza.namespaces;
+ if old_namespaces then
+ namespaces = {};
+ for k,v in pairs(old_namespaces) do namespaces[k] = v; end
+ end
+ local new = { name = stanza.name, attr = attr, namespaces = namespaces, tags = tags };
for i=1,#stanza do
local child = stanza[i];
if child.name then
diff --git a/util/throttle.lua b/util/throttle.lua
index 18692a8a..a8191886 100644
--- a/util/throttle.lua
+++ b/util/throttle.lua
@@ -12,7 +12,7 @@ function throttle:update()
local newt = gettime();
local elapsed = newt - self.t;
self.t = newt;
- local balance = floor(self.rate * elapsed) + self.balance;
+ local balance = (self.rate * elapsed) + self.balance;
if balance > self.max then
self.balance = self.max;
else
@@ -40,7 +40,7 @@ function throttle:poll(cost, split)
end
local function create(max, period)
- return setmetatable({ rate = max / period, max = max, t = 0, balance = max }, throttle_mt);
+ return setmetatable({ rate = max / period, max = max, t = gettime(), balance = max }, throttle_mt);
end
return {
diff --git a/util/timer.lua b/util/timer.lua
index 7e2e9414..c7996bfa 100644
--- a/util/timer.lua
+++ b/util/timer.lua
@@ -6,78 +6,104 @@
-- COPYING file in the source package for more information.
--
+local indexedbheap = require "util.indexedbheap";
+local log = require "util.logger".init("timer");
local server = require "net.server";
-local math_min = math.min
-local math_huge = math.huge
local get_time = require "util.time".now
-local t_insert = table.insert;
-local pairs = pairs;
local type = type;
-
-local data = {};
-local new_data = {};
+local debug_traceback = debug.traceback;
+local tostring = tostring;
+local xpcall = xpcall;
local _ENV = nil;
-local _add_task;
-if not server.event then
- function _add_task(delay, callback)
- local current_time = get_time();
- delay = delay + current_time;
- if delay >= current_time then
- t_insert(new_data, {delay, callback});
- else
- local r = callback(current_time);
- if r and type(r) == "number" then
- return _add_task(r, callback);
- end
+local _add_task = server.add_task;
+
+local _server_timer;
+local _active_timers = 0;
+local h = indexedbheap.create();
+local params = {};
+local next_time = nil;
+local _id, _callback, _now, _param;
+local function _call() return _callback(_now, _id, _param); end
+local function _traceback_handler(err) log("error", "Traceback[timer]: %s", debug_traceback(tostring(err), 2)); end
+local function _on_timer(now)
+ local peek;
+ while true do
+ peek = h:peek();
+ if peek == nil or peek > now then break; end
+ local _;
+ _, _callback, _id = h:pop();
+ _now = now;
+ _param = params[_id];
+ params[_id] = nil;
+ --item(now, id, _param); -- FIXME pcall
+ local success, err = xpcall(_call, _traceback_handler);
+ if success and type(err) == "number" then
+ h:insert(_callback, err + now, _id); -- re-add
+ params[_id] = _param;
end
end
- server._addtimer(function()
- local current_time = get_time();
- if #new_data > 0 then
- for _, d in pairs(new_data) do
- t_insert(data, d);
- end
- new_data = {};
- end
+ if peek ~= nil and _active_timers > 1 and peek == next_time then
+ -- Another instance of _on_timer already set next_time to the same value,
+ -- so it should be safe to not renew this timer event
+ peek = nil;
+ else
+ next_time = peek;
+ end
- local next_time = math_huge;
- for i, d in pairs(data) do
- local t, callback = d[1], d[2];
- if t <= current_time then
- data[i] = nil;
- local r = callback(current_time);
- if type(r) == "number" then
- _add_task(r, callback);
- next_time = math_min(next_time, r);
- end
- else
- next_time = math_min(next_time, t - current_time);
- end
- end
- return next_time;
- end);
-else
- local event = server.event;
- local event_base = server.event_base;
- local EVENT_LEAVE = (event.core and event.core.LEAVE) or -1;
+ if peek then
+ -- peek is the time of the next event
+ return peek - now;
+ end
+ _active_timers = _active_timers - 1;
+end
+local function add_task(delay, callback, param)
+ local current_time = get_time();
+ local event_time = current_time + delay;
- function _add_task(delay, callback)
- local event_handle;
- event_handle = event_base:addevent(nil, 0, function ()
- local ret = callback(get_time());
- if ret then
- return 0, ret;
- elseif event_handle then
- return EVENT_LEAVE;
- end
+ local id = h:insert(callback, event_time);
+ params[id] = param;
+ if next_time == nil or event_time < next_time then
+ next_time = event_time;
+ if _server_timer then
+ _server_timer:close();
+ _server_timer = nil;
+ else
+ _active_timers = _active_timers + 1;
+ end
+ _server_timer = _add_task(next_time - current_time, _on_timer);
+ end
+ return id;
+end
+local function stop(id)
+ params[id] = nil;
+ local result, item, result_sync = h:remove(id);
+ local peek = h:peek();
+ if peek ~= next_time and _server_timer then
+ next_time = peek;
+ _server_timer:close();
+ if next_time ~= nil then
+ _server_timer = _add_task(next_time - get_time(), _on_timer);
end
- , delay);
end
+ return result, item, result_sync;
+end
+local function reschedule(id, delay)
+ local current_time = get_time();
+ local event_time = current_time + delay;
+ h:reprioritize(id, delay);
+ if next_time == nil or event_time < next_time then
+ next_time = event_time;
+ _add_task(next_time - current_time, _on_timer);
+ end
+ return id;
end
return {
- add_task = _add_task;
+ add_task = add_task;
+ stop = stop;
+ reschedule = reschedule;
};
+
diff --git a/util/vcard.lua b/util/vcard.lua
new file mode 100644
index 00000000..8aafa24d
--- /dev/null
+++ b/util/vcard.lua
@@ -0,0 +1,582 @@
+-- Copyright (C) 2011-2014 Kim Alvefur
+--
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+
+-- TODO
+-- Fix folding.
+
+local st = require "util.stanza";
+local t_insert, t_concat = table.insert, table.concat;
+local type = type;
+local next, pairs, ipairs = next, pairs, ipairs;
+
+local from_text, to_text, from_xep54, to_xep54;
+
+local line_sep = "\n";
+
+local vCard_dtd; -- See end of file
+local vCard4_dtd;
+
+local function fold_line()
+ error "Not implemented" --TODO
+end
+local function unfold_line()
+ error "Not implemented"
+ -- gsub("\r?\n[ \t]([^\r\n])", "%1");
+end
+
+local function vCard_esc(s)
+ return s:gsub("[,:;\\]", "\\%1"):gsub("\n","\\n");
+end
+
+local function vCard_unesc(s)
+ return s:gsub("\\?[\\nt:;,]", {
+ ["\\\\"] = "\\",
+ ["\\n"] = "\n",
+ ["\\r"] = "\r",
+ ["\\t"] = "\t",
+ ["\\:"] = ":", -- FIXME Shouldn't need to espace : in values, just params
+ ["\\;"] = ";",
+ ["\\,"] = ",",
+ [":"] = "\29",
+ [";"] = "\30",
+ [","] = "\31",
+ });
+end
+
+local function item_to_xep54(item)
+ local t = st.stanza(item.name, { xmlns = "vcard-temp" });
+
+ local prop_def = vCard_dtd[item.name];
+ if prop_def == "text" then
+ t:text(item[1]);
+ elseif type(prop_def) == "table" then
+ if prop_def.types and item.TYPE then
+ if type(item.TYPE) == "table" then
+ for _,v in pairs(prop_def.types) do
+ for _,typ in pairs(item.TYPE) do
+ if typ:upper() == v then
+ t:tag(v):up();
+ break;
+ end
+ end
+ end
+ else
+ t:tag(item.TYPE:upper()):up();
+ end
+ end
+
+ if prop_def.props then
+ for _,v in pairs(prop_def.props) do
+ if item[v] then
+ t:tag(v):up();
+ end
+ end
+ end
+
+ if prop_def.value then
+ t:tag(prop_def.value):text(item[1]):up();
+ elseif prop_def.values then
+ local prop_def_values = prop_def.values;
+ local repeat_last = prop_def_values.behaviour == "repeat-last" and prop_def_values[#prop_def_values];
+ for i=1,#item do
+ t:tag(prop_def.values[i] or repeat_last):text(item[i]):up();
+ end
+ end
+ end
+
+ return t;
+end
+
+local function vcard_to_xep54(vCard)
+ local t = st.stanza("vCard", { xmlns = "vcard-temp" });
+ for i=1,#vCard do
+ t:add_child(item_to_xep54(vCard[i]));
+ end
+ return t;
+end
+
+function to_xep54(vCards)
+ if not vCards[1] or vCards[1].name then
+ return vcard_to_xep54(vCards)
+ else
+ local t = st.stanza("xCard", { xmlns = "vcard-temp" });
+ for i=1,#vCards do
+ t:add_child(vcard_to_xep54(vCards[i]));
+ end
+ return t;
+ end
+end
+
+function from_text(data)
+ data = data -- unfold and remove empty lines
+ :gsub("\r\n","\n")
+ :gsub("\n ", "")
+ :gsub("\n\n+","\n");
+ local vCards = {};
+ local c; -- current item
+ for line in data:gmatch("[^\n]+") do
+ local line = vCard_unesc(line);
+ local name, params, value = line:match("^([-%a]+)(\30?[^\29]*)\29(.*)$");
+ value = value:gsub("\29",":");
+ if #params > 0 then
+ local _params = {};
+ for k,isval,v in params:gmatch("\30([^=]+)(=?)([^\30]*)") do
+ k = k:upper();
+ local _vt = {};
+ for _p in v:gmatch("[^\31]+") do
+ _vt[#_vt+1]=_p
+ _vt[_p]=true;
+ end
+ if isval == "=" then
+ _params[k]=_vt;
+ else
+ _params[k]=true;
+ end
+ end
+ params = _params;
+ end
+ if name == "BEGIN" and value == "VCARD" then
+ c = {};
+ vCards[#vCards+1] = c;
+ elseif name == "END" and value == "VCARD" then
+ c = nil;
+ elseif c and vCard_dtd[name] then
+ local dtd = vCard_dtd[name];
+ local p = { name = name };
+ c[#c+1]=p;
+ --c[name]=p;
+ local up = c;
+ c = p;
+ if dtd.types then
+ for _, t in ipairs(dtd.types) do
+ local t = t:lower();
+ if ( params.TYPE and params.TYPE[t] == true)
+ or params[t] == true then
+ c.TYPE=t;
+ end
+ end
+ end
+ if dtd.props then
+ for _, p in ipairs(dtd.props) do
+ if params[p] then
+ if params[p] == true then
+ c[p]=true;
+ else
+ for _, prop in ipairs(params[p]) do
+ c[p]=prop;
+ end
+ end
+ end
+ end
+ end
+ if dtd == "text" or dtd.value then
+ t_insert(c, value);
+ elseif dtd.values then
+ local value = "\30"..value;
+ for p in value:gmatch("\30([^\30]*)") do
+ t_insert(c, p);
+ end
+ end
+ c = up;
+ end
+ end
+ return vCards;
+end
+
+local function item_to_text(item)
+ local value = {};
+ for i=1,#item do
+ value[i] = vCard_esc(item[i]);
+ end
+ value = t_concat(value, ";");
+
+ local params = "";
+ for k,v in pairs(item) do
+ if type(k) == "string" and k ~= "name" then
+ params = params .. (";%s=%s"):format(k, type(v) == "table" and t_concat(v,",") or v);
+ end
+ end
+
+ return ("%s%s:%s"):format(item.name, params, value)
+end
+
+local function vcard_to_text(vcard)
+ local t={};
+ t_insert(t, "BEGIN:VCARD")
+ for i=1,#vcard do
+ t_insert(t, item_to_text(vcard[i]));
+ end
+ t_insert(t, "END:VCARD")
+ return t_concat(t, line_sep);
+end
+
+function to_text(vCards)
+ if vCards[1] and vCards[1].name then
+ return vcard_to_text(vCards)
+ else
+ local t = {};
+ for i=1,#vCards do
+ t[i]=vcard_to_text(vCards[i]);
+ end
+ return t_concat(t, line_sep);
+ end
+end
+
+local function from_xep54_item(item)
+ local prop_name = item.name;
+ local prop_def = vCard_dtd[prop_name];
+
+ local prop = { name = prop_name };
+
+ if prop_def == "text" then
+ prop[1] = item:get_text();
+ elseif type(prop_def) == "table" then
+ if prop_def.value then --single item
+ prop[1] = item:get_child_text(prop_def.value) or "";
+ elseif prop_def.values then --array
+ local value_names = prop_def.values;
+ if value_names.behaviour == "repeat-last" then
+ for i=1,#item.tags do
+ t_insert(prop, item.tags[i]:get_text() or "");
+ end
+ else
+ for i=1,#value_names do
+ t_insert(prop, item:get_child_text(value_names[i]) or "");
+ end
+ end
+ elseif prop_def.names then
+ local names = prop_def.names;
+ for i=1,#names do
+ if item:get_child(names[i]) then
+ prop[1] = names[i];
+ break;
+ end
+ end
+ end
+
+ if prop_def.props_verbatim then
+ for k,v in pairs(prop_def.props_verbatim) do
+ prop[k] = v;
+ end
+ end
+
+ if prop_def.types then
+ local types = prop_def.types;
+ prop.TYPE = {};
+ for i=1,#types do
+ if item:get_child(types[i]) then
+ t_insert(prop.TYPE, types[i]:lower());
+ end
+ end
+ if #prop.TYPE == 0 then
+ prop.TYPE = nil;
+ end
+ end
+
+ -- A key-value pair, within a key-value pair?
+ if prop_def.props then
+ local params = prop_def.props;
+ for i=1,#params do
+ local name = params[i]
+ local data = item:get_child_text(name);
+ if data then
+ prop[name] = prop[name] or {};
+ t_insert(prop[name], data);
+ end
+ end
+ end
+ else
+ return nil
+ end
+
+ return prop;
+end
+
+local function from_xep54_vCard(vCard)
+ local tags = vCard.tags;
+ local t = {};
+ for i=1,#tags do
+ t_insert(t, from_xep54_item(tags[i]));
+ end
+ return t
+end
+
+function from_xep54(vCard)
+ if vCard.attr.xmlns ~= "vcard-temp" then
+ return nil, "wrong-xmlns";
+ end
+ if vCard.name == "xCard" then -- A collection of vCards
+ local t = {};
+ local vCards = vCard.tags;
+ for i=1,#vCards do
+ t[i] = from_xep54_vCard(vCards[i]);
+ end
+ return t
+ elseif vCard.name == "vCard" then -- A single vCard
+ return from_xep54_vCard(vCard)
+ end
+end
+
+local vcard4 = { }
+
+function vcard4:text(node, params, value)
+ self:tag(node:lower())
+ -- FIXME params
+ if type(value) == "string" then
+ self:tag("text"):text(value):up()
+ elseif vcard4[node] then
+ vcard4[node](value);
+ end
+ self:up();
+end
+
+function vcard4.N(value)
+ for i, k in ipairs(vCard_dtd.N.values) do
+ value:tag(k):text(value[i]):up();
+ end
+end
+
+local xmlns_vcard4 = "urn:ietf:params:xml:ns:vcard-4.0"
+
+local function item_to_vcard4(item)
+ local typ = item.name:lower();
+ local t = st.stanza(typ, { xmlns = xmlns_vcard4 });
+
+ local prop_def = vCard4_dtd[typ];
+ if prop_def == "text" then
+ t:tag("text"):text(item[1]):up();
+ elseif prop_def == "uri" then
+ if item.ENCODING and item.ENCODING[1] == 'b' then
+ t:tag("uri"):text("data:;base64,"):text(item[1]):up();
+ else
+ t:tag("uri"):text(item[1]):up();
+ end
+ elseif type(prop_def) == "table" then
+ if prop_def.values then
+ for i, v in ipairs(prop_def.values) do
+ t:tag(v:lower()):text(item[i] or ""):up();
+ end
+ else
+ t:tag("unsupported",{xmlns="http://zash.se/protocol/vcardlib"})
+ end
+ else
+ t:tag("unsupported",{xmlns="http://zash.se/protocol/vcardlib"})
+ end
+ return t;
+end
+
+local function vcard_to_vcard4xml(vCard)
+ local t = st.stanza("vcard", { xmlns = xmlns_vcard4 });
+ for i=1,#vCard do
+ t:add_child(item_to_vcard4(vCard[i]));
+ end
+ return t;
+end
+
+local function vcards_to_vcard4xml(vCards)
+ if not vCards[1] or vCards[1].name then
+ return vcard_to_vcard4xml(vCards)
+ else
+ local t = st.stanza("vcards", { xmlns = xmlns_vcard4 });
+ for i=1,#vCards do
+ t:add_child(vcard_to_vcard4xml(vCards[i]));
+ end
+ return t;
+ end
+end
+
+-- This was adapted from http://xmpp.org/extensions/xep-0054.html#dtd
+vCard_dtd = {
+ VERSION = "text", --MUST be 3.0, so parsing is redundant
+ FN = "text",
+ N = {
+ values = {
+ "FAMILY",
+ "GIVEN",
+ "MIDDLE",
+ "PREFIX",
+ "SUFFIX",
+ },
+ },
+ NICKNAME = "text",
+ PHOTO = {
+ props_verbatim = { ENCODING = { "b" } },
+ props = { "TYPE" },
+ value = "BINVAL", --{ "EXTVAL", },
+ },
+ BDAY = "text",
+ ADR = {
+ types = {
+ "HOME",
+ "WORK",
+ "POSTAL",
+ "PARCEL",
+ "DOM",
+ "INTL",
+ "PREF",
+ },
+ values = {
+ "POBOX",
+ "EXTADD",
+ "STREET",
+ "LOCALITY",
+ "REGION",
+ "PCODE",
+ "CTRY",
+ }
+ },
+ LABEL = {
+ types = {
+ "HOME",
+ "WORK",
+ "POSTAL",
+ "PARCEL",
+ "DOM",
+ "INTL",
+ "PREF",
+ },
+ value = "LINE",
+ },
+ TEL = {
+ types = {
+ "HOME",
+ "WORK",
+ "VOICE",
+ "FAX",
+ "PAGER",
+ "MSG",
+ "CELL",
+ "VIDEO",
+ "BBS",
+ "MODEM",
+ "ISDN",
+ "PCS",
+ "PREF",
+ },
+ value = "NUMBER",
+ },
+ EMAIL = {
+ types = {
+ "HOME",
+ "WORK",
+ "INTERNET",
+ "PREF",
+ "X400",
+ },
+ value = "USERID",
+ },
+ JABBERID = "text",
+ MAILER = "text",
+ TZ = "text",
+ GEO = {
+ values = {
+ "LAT",
+ "LON",
+ },
+ },
+ TITLE = "text",
+ ROLE = "text",
+ LOGO = "copy of PHOTO",
+ AGENT = "text",
+ ORG = {
+ values = {
+ behaviour = "repeat-last",
+ "ORGNAME",
+ "ORGUNIT",
+ }
+ },
+ CATEGORIES = {
+ values = "KEYWORD",
+ },
+ NOTE = "text",
+ PRODID = "text",
+ REV = "text",
+ SORTSTRING = "text",
+ SOUND = "copy of PHOTO",
+ UID = "text",
+ URL = "text",
+ CLASS = {
+ names = { -- The item.name is the value if it's one of these.
+ "PUBLIC",
+ "PRIVATE",
+ "CONFIDENTIAL",
+ },
+ },
+ KEY = {
+ props = { "TYPE" },
+ value = "CRED",
+ },
+ DESC = "text",
+};
+vCard_dtd.LOGO = vCard_dtd.PHOTO;
+vCard_dtd.SOUND = vCard_dtd.PHOTO;
+
+vCard4_dtd = {
+ source = "uri",
+ kind = "text",
+ xml = "text",
+ fn = "text",
+ n = {
+ values = {
+ "family",
+ "given",
+ "middle",
+ "prefix",
+ "suffix",
+ },
+ },
+ nickname = "text",
+ photo = "uri",
+ bday = "date-and-or-time",
+ anniversary = "date-and-or-time",
+ gender = "text",
+ adr = {
+ values = {
+ "pobox",
+ "ext",
+ "street",
+ "locality",
+ "region",
+ "code",
+ "country",
+ }
+ },
+ tel = "text",
+ email = "text",
+ impp = "uri",
+ lang = "language-tag",
+ tz = "text",
+ geo = "uri",
+ title = "text",
+ role = "text",
+ logo = "uri",
+ org = "text",
+ member = "uri",
+ related = "uri",
+ categories = "text",
+ note = "text",
+ prodid = "text",
+ rev = "timestamp",
+ sound = "uri",
+ uid = "uri",
+ clientpidmap = "number, uuid",
+ url = "uri",
+ version = "text",
+ key = "uri",
+ fburl = "uri",
+ caladruri = "uri",
+ caluri = "uri",
+};
+
+return {
+ from_text = from_text;
+ to_text = to_text;
+
+ from_xep54 = from_xep54;
+ to_xep54 = to_xep54;
+
+ to_vcard4 = vcards_to_vcard4xml;
+};
diff --git a/util/xml.lua b/util/xml.lua
index 733d821a..ec06fb01 100644
--- a/util/xml.lua
+++ b/util/xml.lua
@@ -1,6 +1,8 @@
local st = require "util.stanza";
local lxp = require "lxp";
+local t_insert = table.insert;
+local t_remove = table.remove;
local _ENV = nil;
@@ -14,6 +16,21 @@ local parse_xml = (function()
--luacheck: ignore 212/self
local handler = {};
local stanza = st.stanza("root");
+ local namespaces = {};
+ local prefixes = {};
+ function handler:StartNamespaceDecl(prefix, url)
+ if prefix ~= nil then
+ t_insert(namespaces, url);
+ t_insert(prefixes, prefix);
+ end
+ end
+ function handler:EndNamespaceDecl(prefix)
+ if prefix ~= nil then
+ -- we depend on each StartNamespaceDecl having a paired EndNamespaceDecl
+ t_remove(namespaces);
+ t_remove(prefixes);
+ end
+ end
function handler:StartElement(tagname, attr)
local curr_ns,name = tagname:match(ns_pattern);
if name == "" then
@@ -34,7 +51,11 @@ local parse_xml = (function()
end
end
end
- stanza:tag(name, attr);
+ local n = {}
+ for i=1,#namespaces do
+ n[prefixes[i]] = namespaces[i];
+ end
+ stanza:tag(name, attr, n);
end
function handler:CharacterData(data)
stanza:text(data);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 07:45:10 +0000