X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=util%2Fstanza.lua;h=526bb2f0f5c45e892fbfd886e2e0ee2ff83301fe;hb=a80f2d734aaf6cf54728a7d9e4a68335f91af8f9;hp=35277e9cdeeb5504acc2b4f9a9d960c4388a91a7;hpb=dfe21804fe9558ac19d2327d2cf4ed16267bc3fc;p=prosody.git

diff --git a/util/stanza.lua b/util/stanza.lua
index 35277e9c..526bb2f0 100644
--- a/util/stanza.lua
+++ b/util/stanza.lua
@@ -1,12 +1,35 @@
+-- Prosody IM v0.4
+-- Copyright (C) 2008-2009 Matthew Wild
+-- Copyright (C) 2008-2009 Waqas Hussain
+-- 
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+
+
 local t_insert      =  table.insert;
+local t_concat      =  table.concat;
 local t_remove      =  table.remove;
-local format        = string.format;
+local t_concat      =  table.concat;
+local s_format      = string.format;
+local s_match       =  string.match;
 local tostring      =      tostring;
 local setmetatable  =  setmetatable;
+local getmetatable  =  getmetatable;
 local pairs         =         pairs;
 local ipairs        =        ipairs;
 local type          =          type;
+local next          =          next;
+local print         =         print;
+local unpack        =        unpack;
 local s_gsub        =   string.gsub;
+local os            =            os;
+
+local do_pretty_printing = not os.getenv("WINDIR");
+local getstyle, getstring = require "util.termcolours".getstyle, require "util.termcolours".getstring;
+
+local log = require "util.logger".init("stanza");
+
 module "stanza"
 
 stanza_mt = {};
@@ -17,27 +40,23 @@ function stanza(name, attr)
 	return setmetatable(stanza, stanza_mt);
 end
 
-function stanza_mt:iq(attrs)
-	return self + stanza("iq", attrs)
-end
-function stanza_mt:message(attrs)
-	return self + stanza("message", attrs)
-end
-function stanza_mt:presence(attrs)
-	return self + stanza("presence", attrs)
-end
 function stanza_mt:query(xmlns)
 	return self:tag("query", { xmlns = xmlns });
 end
+
+function stanza_mt:body(text, attr)
+	return self:tag("body", attr):text(text);
+end
+
 function stanza_mt:tag(name, attrs)
 	local s = stanza(name, attrs);
-	(self.last_add[#self.last_add] or self):add_child(s);
+	(self.last_add[#self.last_add] or self):add_direct_child(s);
 	t_insert(self.last_add, s);
 	return self;
 end
 
 function stanza_mt:text(text)
-	(self.last_add[#self.last_add] or self):add_child(text);
+	(self.last_add[#self.last_add] or self):add_direct_child(text);
 	return self; 
 end
 
@@ -46,19 +65,38 @@ function stanza_mt:up()
 	return self;
 end
 
-function stanza_mt:add_child(child)
+function stanza_mt:reset()
+	local last_add = self.last_add;
+	for i = 1,#last_add do
+		last_add[i] = nil;
+	end
+	return self;
+end
+
+function stanza_mt:add_direct_child(child)
 	if type(child) == "table" then
 		t_insert(self.tags, child);
 	end
 	t_insert(self, child);
 end
 
+function stanza_mt:add_child(child)
+	(self.last_add[#self.last_add] or self):add_direct_child(child);
+	return self;
+end
+
 function stanza_mt:child_with_name(name)
-	for _, child in ipairs(self) do	
+	for _, child in ipairs(self.tags) do	
 		if child.name == name then return child; end
 	end
 end
 
+function stanza_mt:child_with_ns(ns)
+	for _, child in ipairs(self.tags) do	
+		if child.attr.xmlns == ns then return child; end
+	end
+end
+
 function stanza_mt:children()
 	local i = 0;
 	return function (a)
@@ -85,26 +123,57 @@ end
 
 local xml_escape = xml_escape;
 
-function stanza_mt.__tostring(t)
-	local children_text = "";
+local function dostring(t, buf, self, xml_escape)
+	local nsid, ns, attrk = 0;
+	t_insert(buf, "<");
+	t_insert(buf, t.name);
+	for k, v in pairs(t.attr) do if type(k) == "string" then
+		t_insert(buf, " ");
+		ns, attrk = s_match(k, "^([^|]+)|(.+)$");
+		if ns then
+			nsid = (nsid or -1) + 1;
+			t_insert(buf, "xmlns:ns"..nsid);
+			t_insert(buf, "='");
+			t_insert(buf, (xml_escape(tostring(ns))));
+			t_insert(buf, "' ");
+			t_insert(buf, "ns"..nsid..":"..attrk);
+		else
+			t_insert(buf, k);
+		end
+		t_insert(buf, "='");
+		t_insert(buf, (xml_escape(tostring(v))));
+		t_insert(buf, "'");
+	end end
+	t_insert(buf, ">");
 	for n, child in ipairs(t) do
-		if type(child) == "string" then	
-			children_text = children_text .. xml_escape(child);
+		if child.name then 
+			self(child, buf, self, xml_escape);
 		else
-			children_text = children_text .. tostring(child);
+			t_insert(buf, (xml_escape(child)));
 		end
 	end
+	t_insert(buf, "</");
+	t_insert(buf, t.name);
+	t_insert(buf, ">");
+end
+
+function stanza_mt.__tostring(t)
+	local buf = {};
+	dostring(t, buf, dostring, xml_escape);
+	return t_concat(buf);
+end
 
+
+function stanza_mt.top_tag(t)
 	local attr_string = "";
 	if t.attr then
-		for k, v in pairs(t.attr) do if type(k) == "string" then attr_string = attr_string .. format(" %s='%s'", k, tostring(v)); end end
+		for k, v in pairs(t.attr) do if type(k) == "string" then attr_string = attr_string .. s_format(" %s='%s'", k, xml_escape(tostring(v))); end end
 	end
-
-	return format("<%s%s>%s</%s>", t.name, attr_string, children_text, t.name);
+	return s_format("<%s%s>", t.name, attr_string);
 end
 
 function stanza_mt.__add(s1, s2)
-	return s1:add_child(s2);
+	return s1:add_direct_child(s2);
 end
 
 
@@ -116,6 +185,63 @@ do
         end
 end
 
+function preserialize(stanza)
+	local s = { name = stanza.name, attr = stanza.attr };
+	for _, child in ipairs(stanza) do
+		if type(child) == "table" then
+			t_insert(s, preserialize(child));
+		else
+			t_insert(s, child);
+		end
+	end
+	return s;
+end
+
+function deserialize(stanza)
+	-- Set metatable
+	if stanza then
+		setmetatable(stanza, stanza_mt);
+		for _, child in ipairs(stanza) do
+			if type(child) == "table" then
+				deserialize(child);
+			end
+		end
+		if not stanza.tags then
+			-- Rebuild tags
+			local tags = {};
+			for _, child in ipairs(stanza) do
+				if type(child) == "table" then
+					t_insert(tags, child);
+				end
+			end
+			stanza.tags = tags;
+			if not stanza.last_add then
+				stanza.last_add = {};
+			end
+		end
+	end
+	
+	return stanza;
+end
+
+function clone(stanza)
+    local lookup_table = {};
+    local function _copy(object)
+        if type(object) ~= "table" then
+            return object;
+        elseif lookup_table[object] then
+            return lookup_table[object];
+        end
+        local new_table = {};
+        lookup_table[object] = new_table;
+        for index, value in pairs(object) do
+            new_table[_copy(index)] = _copy(value);
+        end
+        return setmetatable(new_table, getmetatable(object));
+    end
+    return _copy(stanza)
+end
+
 function message(attr, body)
 	if not body then
 		return stanza("message", attr);
@@ -129,10 +255,60 @@ function iq(attr)
 end
 
 function reply(orig)
-	return stanza(orig.name, orig.attr and { to = orig.attr.from, from = orig.attr.to, id = orig.attr.id, type = ((orig.name == "iq" and "result") or nil) });
+	return stanza(orig.name, orig.attr and { to = orig.attr.from, from = orig.attr.to, id = orig.attr.id, type = ((orig.name == "iq" and "result") or orig.attr.type) });
+end
+
+function error_reply(orig, type, condition, message)
+	local t = reply(orig);
+	t.attr.type = "error";
+	t:tag("error", {type = type})
+		:tag(condition, {xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"}):up();
+	if (message) then t:tag("text"):text(message):up(); end
+	return t; -- stanza ready for adding app-specific errors
 end
 
 function presence(attr)
 	return stanza("presence", attr);
 end
 
+if do_pretty_printing then
+	local style_attrk = getstyle("yellow");
+	local style_attrv = getstyle("red");
+	local style_tagname = getstyle("red");
+	local style_punc = getstyle("magenta");
+	
+	local attr_format = " "..getstring(style_attrk, "%s")..getstring(style_punc, "=")..getstring(style_attrv, "'%s'");
+	local top_tag_format = getstring(style_punc, "<")..getstring(style_tagname, "%s").."%s"..getstring(style_punc, ">");
+	--local tag_format = getstring(style_punc, "<")..getstring(style_tagname, "%s").."%s"..getstring(style_punc, ">").."%s"..getstring(style_punc, "</")..getstring(style_tagname, "%s")..getstring(style_punc, ">");
+	local tag_format = top_tag_format.."%s"..getstring(style_punc, "</")..getstring(style_tagname, "%s")..getstring(style_punc, ">");
+	function stanza_mt.pretty_print(t)
+		local children_text = "";
+		for n, child in ipairs(t) do
+			if type(child) == "string" then	
+				children_text = children_text .. xml_escape(child);
+			else
+				children_text = children_text .. child:pretty_print();
+			end
+		end
+
+		local attr_string = "";
+		if t.attr then
+			for k, v in pairs(t.attr) do if type(k) == "string" then attr_string = attr_string .. s_format(attr_format, k, tostring(v)); end end
+		end
+		return s_format(tag_format, t.name, attr_string, children_text, t.name);
+	end
+	
+	function stanza_mt.pretty_top_tag(t)
+		local attr_string = "";
+		if t.attr then
+			for k, v in pairs(t.attr) do if type(k) == "string" then attr_string = attr_string .. s_format(attr_format, k, tostring(v)); end end
+		end
+		return s_format(top_tag_format, t.name, attr_string);
+	end
+else
+	-- Sorry, fresh out of colours for you guys ;)
+	stanza_mt.pretty_print = stanza_mt.__tostring;
+	stanza_mt.pretty_top_tag = stanza_mt.top_tag;
+end
+
+return _M;