author | Matthew Wild <mwild1@gmail.com> |
Wed, 08 Apr 2009 20:12:40 +0100 | |
changeset 964 | 3296db2ad4a0 |
parent 896 | 2c0b9e3c11c3 |
child 1151 | 8096941b6734 |
permissions | -rw-r--r-- |
896 | 1 |
-- Prosody IM v0.4 |
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-- Copyright (C) 2008-2009 Matthew Wild |
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-- Copyright (C) 2008-2009 Waqas Hussain |
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-- |
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-- This project is MIT/X11 licensed. Please see the |
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-- COPYING file in the source package for more information. |
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-- |
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local t_insert = table.insert; |
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local t_concat = table.concat; |
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local t_remove = table.remove; |
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local t_concat = table.concat; |
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local s_format = string.format; |
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local s_match = string.match; |
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local tostring = tostring; |
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local setmetatable = setmetatable; |
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local getmetatable = getmetatable; |
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local pairs = pairs; |
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local ipairs = ipairs; |
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local type = type; |
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local next = next; |
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local print = print; |
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local unpack = unpack; |
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local s_gsub = string.gsub; |
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local os = os; |
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local do_pretty_printing = not os.getenv("WINDIR"); |
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local getstyle, getstring = require "util.termcolours".getstyle, require "util.termcolours".getstring; |
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local log = require "util.logger".init("stanza"); |
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module "stanza" |
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stanza_mt = {}; |
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stanza_mt.__index = stanza_mt; |
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function stanza(name, attr) |
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local stanza = { name = name, attr = attr or {}, tags = {}, last_add = {}}; |
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return setmetatable(stanza, stanza_mt); |
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end |
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function stanza_mt:query(xmlns) |
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return self:tag("query", { xmlns = xmlns }); |
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end |
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function stanza_mt:body(text, attr) |
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return self:tag("body", attr):text(text); |
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end |
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function stanza_mt:tag(name, attrs) |
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local s = stanza(name, attrs); |
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(self.last_add[#self.last_add] or self):add_direct_child(s); |
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t_insert(self.last_add, s); |
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return self; |
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end |
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function stanza_mt:text(text) |
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(self.last_add[#self.last_add] or self):add_direct_child(text); |
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return self; |
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end |
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function stanza_mt:up() |
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t_remove(self.last_add); |
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return self; |
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end |
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function stanza_mt:reset() |
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local last_add = self.last_add; |
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for i = 1,#last_add do |
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last_add[i] = nil; |
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end |
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return self; |
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end |
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function stanza_mt:add_direct_child(child) |
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if type(child) == "table" then |
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t_insert(self.tags, child); |
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end |
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t_insert(self, child); |
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end |
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function stanza_mt:add_child(child) |
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(self.last_add[#self.last_add] or self):add_direct_child(child); |
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return self; |
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end |
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function stanza_mt:child_with_name(name) |
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for _, child in ipairs(self.tags) do |
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if child.name == name then return child; end |
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end |
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end |
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function stanza_mt:child_with_ns(ns) |
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for _, child in ipairs(self.tags) do |
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if child.attr.xmlns == ns then return child; end |
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end |
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end |
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function stanza_mt:children() |
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local i = 0; |
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return function (a) |
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i = i + 1 |
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local v = a[i] |
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if v then return v; end |
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end, self, i; |
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end |
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function stanza_mt:childtags() |
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local i = 0; |
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return function (a) |
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i = i + 1 |
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local v = self.tags[i] |
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if v then return v; end |
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end, self.tags[1], i; |
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end |
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do |
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local xml_entities = { ["'"] = "'", ["\""] = """, ["<"] = "<", [">"] = ">", ["&"] = "&" }; |
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function xml_escape(s) return s_gsub(s, "['&<>\"]", xml_entities); end |
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end |
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local xml_escape = xml_escape; |
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local function dostring(t, buf, self, xml_escape) |
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local nsid, ns, attrk = 0; |
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t_insert(buf, "<"); |
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t_insert(buf, t.name); |
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for k, v in pairs(t.attr) do if type(k) == "string" then |
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t_insert(buf, " "); |
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ns, attrk = s_match(k, "^([^|]+)|(.+)$"); |
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if ns then |
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nsid = (nsid or -1) + 1; |
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t_insert(buf, "xmlns:ns"..nsid); |
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t_insert(buf, "='"); |
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t_insert(buf, (xml_escape(tostring(ns)))); |
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t_insert(buf, "' "); |
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139 |
t_insert(buf, "ns"..nsid..":"..attrk); |
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140 |
else |
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t_insert(buf, k); |
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142 |
end |
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t_insert(buf, "='"); |
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t_insert(buf, (xml_escape(tostring(v)))); |
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t_insert(buf, "'"); |
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146 |
end end |
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t_insert(buf, ">"); |
0 | 148 |
for n, child in ipairs(t) do |
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if child.name then |
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150 |
self(child, buf, self, xml_escape); |
4 | 151 |
else |
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152 |
t_insert(buf, (xml_escape(child))); |
4 | 153 |
end |
0 | 154 |
end |
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155 |
t_insert(buf, "</"); |
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156 |
t_insert(buf, t.name); |
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157 |
t_insert(buf, ">"); |
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158 |
end |
0 | 159 |
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160 |
function stanza_mt.__tostring(t) |
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local buf = {}; |
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dostring(t, buf, dostring, xml_escape); |
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163 |
return t_concat(buf); |
0 | 164 |
end |
165 |
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167 |
function stanza_mt.top_tag(t) |
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168 |
local attr_string = ""; |
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|
169 |
if t.attr then |
338
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Don't forget to escape XML in attributes. Thanks to the Postgres Q&A room on conference.jabber.org :)
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|
170 |
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 |
242
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171 |
end |
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172 |
return s_format("<%s%s>", t.name, attr_string); |
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173 |
end |
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|
174 |
|
0 | 175 |
function stanza_mt.__add(s1, s2) |
180
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|
176 |
return s1:add_direct_child(s2); |
0 | 177 |
end |
178 |
||
179 |
||
180 |
do |
|
181 |
local id = 0; |
|
182 |
function new_id() |
|
183 |
id = id + 1; |
|
184 |
return "lx"..id; |
|
185 |
end |
|
186 |
end |
|
187 |
||
90
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|
188 |
function preserialize(stanza) |
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|
189 |
local s = { name = stanza.name, attr = stanza.attr }; |
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190 |
for _, child in ipairs(stanza) do |
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|
191 |
if type(child) == "table" then |
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|
192 |
t_insert(s, preserialize(child)); |
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|
193 |
else |
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|
194 |
t_insert(s, child); |
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|
195 |
end |
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changeset
|
196 |
end |
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changeset
|
197 |
return s; |
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parents:
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changeset
|
198 |
end |
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parents:
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changeset
|
199 |
|
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changeset
|
200 |
function deserialize(stanza) |
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|
201 |
-- Set metatable |
91
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changeset
|
202 |
if stanza then |
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changeset
|
203 |
setmetatable(stanza, stanza_mt); |
90
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parents:
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changeset
|
204 |
for _, child in ipairs(stanza) do |
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parents:
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changeset
|
205 |
if type(child) == "table" then |
91
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parents:
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changeset
|
206 |
deserialize(child); |
90
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changeset
|
207 |
end |
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parents:
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changeset
|
208 |
end |
91
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changeset
|
209 |
if not stanza.tags then |
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Fixed: util.stanza.deserialize now handles nil stanzas
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parents:
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changeset
|
210 |
-- Rebuild tags |
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Fixed: util.stanza.deserialize now handles nil stanzas
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parents:
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diff
changeset
|
211 |
local tags = {}; |
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Fixed: util.stanza.deserialize now handles nil stanzas
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parents:
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diff
changeset
|
212 |
for _, child in ipairs(stanza) do |
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Fixed: util.stanza.deserialize now handles nil stanzas
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parents:
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diff
changeset
|
213 |
if type(child) == "table" then |
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parents:
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changeset
|
214 |
t_insert(tags, child); |
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Fixed: util.stanza.deserialize now handles nil stanzas
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changeset
|
215 |
end |
6d66eb6b24cb
Fixed: util.stanza.deserialize now handles nil stanzas
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parents:
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diff
changeset
|
216 |
end |
6d66eb6b24cb
Fixed: util.stanza.deserialize now handles nil stanzas
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parents:
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diff
changeset
|
217 |
stanza.tags = tags; |
680
734994b61907
Restore fix for missing last_add on deserialized stanzas. Thanks to tsing for discovering.
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parents:
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diff
changeset
|
218 |
if not stanza.last_add then |
734994b61907
Restore fix for missing last_add on deserialized stanzas. Thanks to tsing for discovering.
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parents:
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diff
changeset
|
219 |
stanza.last_add = {}; |
734994b61907
Restore fix for missing last_add on deserialized stanzas. Thanks to tsing for discovering.
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parents:
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diff
changeset
|
220 |
end |
91
6d66eb6b24cb
Fixed: util.stanza.deserialize now handles nil stanzas
Waqas Hussain <waqas20@gmail.com>
parents:
90
diff
changeset
|
221 |
end |
90
da468ed49a7b
Stanza preserialize/deserialize helpers, to strip and restore stanzas respectively. Fixed mod_vcard to use these.
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parents:
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diff
changeset
|
222 |
end |
da468ed49a7b
Stanza preserialize/deserialize helpers, to strip and restore stanzas respectively. Fixed mod_vcard to use these.
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parents:
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diff
changeset
|
223 |
|
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parents:
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diff
changeset
|
224 |
return stanza; |
da468ed49a7b
Stanza preserialize/deserialize helpers, to strip and restore stanzas respectively. Fixed mod_vcard to use these.
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parents:
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diff
changeset
|
225 |
end |
da468ed49a7b
Stanza preserialize/deserialize helpers, to strip and restore stanzas respectively. Fixed mod_vcard to use these.
Matthew Wild <mwild1@gmail.com>
parents:
70
diff
changeset
|
226 |
|
829
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util/stanza: Added clone function
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parents:
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diff
changeset
|
227 |
function clone(stanza) |
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parents:
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diff
changeset
|
228 |
local lookup_table = {}; |
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changeset
|
229 |
local function _copy(object) |
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util/stanza: Added clone function
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parents:
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diff
changeset
|
230 |
if type(object) ~= "table" then |
b01fd698495e
util/stanza: Added clone function
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parents:
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diff
changeset
|
231 |
return object; |
b01fd698495e
util/stanza: Added clone function
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parents:
776
diff
changeset
|
232 |
elseif lookup_table[object] then |
b01fd698495e
util/stanza: Added clone function
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parents:
776
diff
changeset
|
233 |
return lookup_table[object]; |
b01fd698495e
util/stanza: Added clone function
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parents:
776
diff
changeset
|
234 |
end |
b01fd698495e
util/stanza: Added clone function
Waqas Hussain <waqas20@gmail.com>
parents:
776
diff
changeset
|
235 |
local new_table = {}; |
b01fd698495e
util/stanza: Added clone function
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parents:
776
diff
changeset
|
236 |
lookup_table[object] = new_table; |
b01fd698495e
util/stanza: Added clone function
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parents:
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diff
changeset
|
237 |
for index, value in pairs(object) do |
b01fd698495e
util/stanza: Added clone function
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parents:
776
diff
changeset
|
238 |
new_table[_copy(index)] = _copy(value); |
b01fd698495e
util/stanza: Added clone function
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parents:
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diff
changeset
|
239 |
end |
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util/stanza: Added clone function
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diff
changeset
|
240 |
return setmetatable(new_table, getmetatable(object)); |
b01fd698495e
util/stanza: Added clone function
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parents:
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diff
changeset
|
241 |
end |
b01fd698495e
util/stanza: Added clone function
Waqas Hussain <waqas20@gmail.com>
parents:
776
diff
changeset
|
242 |
return _copy(stanza) |
b01fd698495e
util/stanza: Added clone function
Waqas Hussain <waqas20@gmail.com>
parents:
776
diff
changeset
|
243 |
end |
b01fd698495e
util/stanza: Added clone function
Waqas Hussain <waqas20@gmail.com>
parents:
776
diff
changeset
|
244 |
|
0 | 245 |
function message(attr, body) |
246 |
if not body then |
|
247 |
return stanza("message", attr); |
|
248 |
else |
|
249 |
return stanza("message", attr):tag("body"):text(body); |
|
250 |
end |
|
251 |
end |
|
252 |
function iq(attr) |
|
253 |
if attr and not attr.id then attr.id = new_id(); end |
|
254 |
return stanza("iq", attr or { id = new_id() }); |
|
255 |
end |
|
256 |
||
257 |
function reply(orig) |
|
209
e9de0803676d
Part one of internal component support
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parents:
181
diff
changeset
|
258 |
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) }); |
0 | 259 |
end |
260 |
||
60
44800be871f5
User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
30
diff
changeset
|
261 |
function error_reply(orig, type, condition, message, clone) |
70
a6c00467a3f8
Fixed typo in variable name
Waqas Hussain <waqas20@gmail.com>
parents:
62
diff
changeset
|
262 |
local t = reply(orig); |
60
44800be871f5
User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
30
diff
changeset
|
263 |
t.attr.type = "error"; |
44800be871f5
User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
30
diff
changeset
|
264 |
-- TODO use clone |
44800be871f5
User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
30
diff
changeset
|
265 |
t:tag("error", {type = type}) |
44800be871f5
User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
30
diff
changeset
|
266 |
:tag(condition, {xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"}):up(); |
44800be871f5
User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
30
diff
changeset
|
267 |
if (message) then t:tag("text"):text(message):up(); end |
44800be871f5
User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
30
diff
changeset
|
268 |
return t; -- stanza ready for adding app-specific errors |
44800be871f5
User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
30
diff
changeset
|
269 |
end |
44800be871f5
User registration, etc (jabber:iq:register)
Waqas Hussain <waqas20@gmail.com>
parents:
30
diff
changeset
|
270 |
|
0 | 271 |
function presence(attr) |
272 |
return stanza("presence", attr); |
|
273 |
end |
|
274 |
||
262 | 275 |
if do_pretty_printing then |
276 |
local style_attrk = getstyle("yellow"); |
|
277 |
local style_attrv = getstyle("red"); |
|
278 |
local style_tagname = getstyle("red"); |
|
279 |
local style_punc = getstyle("magenta"); |
|
280 |
||
281 |
local attr_format = " "..getstring(style_attrk, "%s")..getstring(style_punc, "=")..getstring(style_attrv, "'%s'"); |
|
282 |
local top_tag_format = getstring(style_punc, "<")..getstring(style_tagname, "%s").."%s"..getstring(style_punc, ">"); |
|
283 |
--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, ">"); |
|
284 |
local tag_format = top_tag_format.."%s"..getstring(style_punc, "</")..getstring(style_tagname, "%s")..getstring(style_punc, ">"); |
|
285 |
function stanza_mt.pretty_print(t) |
|
286 |
local children_text = ""; |
|
287 |
for n, child in ipairs(t) do |
|
288 |
if type(child) == "string" then |
|
289 |
children_text = children_text .. xml_escape(child); |
|
290 |
else |
|
291 |
children_text = children_text .. child:pretty_print(); |
|
292 |
end |
|
293 |
end |
|
294 |
||
295 |
local attr_string = ""; |
|
296 |
if t.attr then |
|
297 |
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 |
|
298 |
end |
|
299 |
return s_format(tag_format, t.name, attr_string, children_text, t.name); |
|
300 |
end |
|
301 |
||
302 |
function stanza_mt.pretty_top_tag(t) |
|
303 |
local attr_string = ""; |
|
304 |
if t.attr then |
|
305 |
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 |
|
306 |
end |
|
307 |
return s_format(top_tag_format, t.name, attr_string); |
|
308 |
end |
|
309 |
else |
|
310 |
-- Sorry, fresh out of colours for you guys ;) |
|
311 |
stanza_mt.pretty_print = stanza_mt.__tostring; |
|
312 |
stanza_mt.pretty_top_tag = stanza_mt.top_tag; |
|
313 |
end |
|
314 |
||
90
da468ed49a7b
Stanza preserialize/deserialize helpers, to strip and restore stanzas respectively. Fixed mod_vcard to use these.
Matthew Wild <mwild1@gmail.com>
parents:
70
diff
changeset
|
315 |
return _M; |