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local st = require("util.stanza");
local function toboolean(s)
if s == "true" or s == "1" then
return true
elseif s == "false" or s == "0" then
return false
end
end
local function parse_object(schema, s)
local out = {}
if schema.properties then
for prop, propschema in pairs(schema.properties) do
local name = prop
local namespace = s.attr.xmlns;
local prefix = nil
local is_attribute = false
local is_text = false
local name_is_value = false;
local single_attribute
local enums
local proptype
if type(propschema) == "table" then
proptype = propschema.type
elseif type(propschema) == "string" then
proptype = propschema
end
if type(propschema) == "table" and propschema.xml then
if propschema.xml.name then
name = propschema.xml.name
end
if propschema.xml.namespace then
namespace = propschema.xml.namespace
end
if propschema.xml.prefix then
prefix = propschema.xml.prefix
end
if propschema.xml.attribute then
is_attribute = true
elseif propschema.xml.text then
is_text = true
elseif propschema.xml.x_name_is_value then
name_is_value = true
elseif propschema.xml.x_single_attribute then
single_attribute = propschema.xml.x_single_attribute
end
if propschema["const"] then
enums = {propschema["const"]}
elseif propschema["enum"] then
enums = propschema["enum"]
end
end
if name_is_value then
local c
if proptype == "boolean" then
c = s:get_child(name, namespace);
elseif enums and proptype == "string" then
for i = 1, #enums do
c = s:get_child(enums[i], namespace);
if c then
break
end
end
else
c = s:get_child(nil, namespace);
end
if c and proptype == "string" then
out[prop] = c.name;
elseif proptype == "boolean" and c then
out[prop] = true;
end
elseif is_attribute then
local attr = name
if prefix then
attr = prefix .. ":" .. name
elseif namespace ~= s.attr.xmlns then
attr = namespace .. "\1" .. name
end
if proptype == "string" then
out[prop] = s.attr[attr]
elseif proptype == "integer" or proptype == "number" then
out[prop] = tonumber(s.attr[attr])
elseif proptype == "boolean" then
out[prop] = toboolean(s.attr[attr])
end
elseif is_text then
if proptype == "string" then
out[prop] = s:get_text()
elseif proptype == "integer" or proptype == "number" then
out[prop] = tonumber(s:get_text())
end
elseif single_attribute then
local c = s:get_child(name, namespace)
local a = c and c.attr[single_attribute]
if proptype == "string" then
out[prop] = a
elseif proptype == "integer" or proptype == "number" then
out[prop] = tonumber(a)
elseif proptype == "boolean" then
out[prop] = toboolean(a)
end
else
if proptype == "string" then
out[prop] = s:get_child_text(name, namespace)
elseif proptype == "integer" or proptype == "number" then
out[prop] = tonumber(s:get_child_text(name, namespace))
elseif proptype == "object" and type(propschema) == "table" then
local c = s:get_child(name, namespace)
if c then
out[prop] = parse_object(propschema, c);
end
end
end
end
end
return out
end
local function parse(schema, s)
if schema.type == "object" then
return parse_object(schema, s)
end
end
local function unparse(schema, t, current_name, current_ns)
if schema.type == "object" then
if schema.xml then
if schema.xml.name then
current_name = schema.xml.name
end
if schema.xml.namespace then
current_ns = schema.xml.namespace
end
end
local out = st.stanza(current_name, {xmlns = current_ns})
for prop, propschema in pairs(schema.properties) do
local v = t[prop]
if v ~= nil then
local proptype
if type(propschema) == "table" then
proptype = propschema.type
elseif type(propschema) == "string" then
proptype = propschema
end
local name = prop
local namespace = current_ns
local prefix = nil
local is_attribute = false
local is_text = false
local name_is_value = false;
local single_attribute
if type(propschema) == "table" and propschema.xml then
if propschema.xml.name then
name = propschema.xml.name
end
if propschema.xml.namespace then
namespace = propschema.xml.namespace
end
if propschema.xml.prefix then
prefix = propschema.xml.prefix
end
if propschema.xml.attribute then
is_attribute = true
elseif propschema.xml.text then
is_text = true
elseif propschema.xml.x_name_is_value then
name_is_value = true
elseif propschema.xml.x_single_attribute then
single_attribute = propschema.xml.x_single_attribute
end
end
if is_attribute then
local attr = name
if prefix then
attr = prefix .. ":" .. name
elseif namespace ~= current_ns then
attr = namespace .. "\1" .. name
end
if proptype == "string" and type(v) == "string" then
out.attr[attr] = v
elseif proptype == "number" and type(v) == "number" then
out.attr[attr] = string.format("%g", v)
elseif proptype == "integer" and type(v) == "number" then
out.attr[attr] = string.format("%d", v)
elseif proptype == "boolean" then
out.attr[attr] = v and "1" or "0"
end
elseif is_text then
if type(v) == "string" then
out:text(v)
end
elseif single_attribute then
local propattr = {}
if namespace ~= current_ns then
propattr.xmlns = namespace
end
if proptype == "string" and type(v) == "string" then
propattr[single_attribute] = v
elseif proptype == "number" and type(v) == "number" then
propattr[single_attribute] = string.format("%g", v)
elseif proptype == "integer" and type(v) == "number" then
propattr[single_attribute] = string.format("%d", v)
elseif proptype == "boolean" and type(v) == "boolean" then
propattr[single_attribute] = v and "1" or "0"
end
out:tag(name, propattr):up();
else
local propattr
if namespace ~= current_ns then
propattr = {xmlns = namespace}
end
if name_is_value then
if proptype == "string" and type(v) == "string" then
out:tag(v, propattr):up();
elseif proptype == "boolean" and v == true then
out:tag(name, propattr):up();
end
elseif proptype == "string" and type(v) == "string" then
out:text_tag(name, v, propattr)
elseif proptype == "number" and type(v) == "number" then
out:text_tag(name, string.format("%g", v), propattr)
elseif proptype == "integer" and type(v) == "number" then
out:text_tag(name, string.format("%d", v), propattr)
elseif proptype == "boolean" and type(v) == "boolean" then
out:text_tag(name, v and "1" or "0", propattr)
elseif proptype == "object" and type(propschema) == "table" and type(v) == "table" then
local c = unparse(propschema, v, name, namespace);
if c then
out:add_direct_child(c);
end
end
end
end
end
return out
end
end
return {parse = parse; unparse = unparse}
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