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-rw-r--r--util/dataforms.lua91
1 files changed, 81 insertions, 10 deletions
diff --git a/util/dataforms.lua b/util/dataforms.lua
index ae745e03..e4d24cf6 100644
--- a/util/dataforms.lua
+++ b/util/dataforms.lua
@@ -8,9 +8,10 @@
local setmetatable = setmetatable;
local pairs, ipairs = pairs, ipairs;
-local tostring, type = tostring, type;
+local tostring, type, next = tostring, type, next;
local t_concat = table.concat;
local st = require "util.stanza";
+local jid_prep = require "util.jid".prep;
module "dataforms"
@@ -104,24 +105,32 @@ function form_t.form(layout, data, formtype)
end
local field_readers = {};
+local field_verifiers = {};
function form_t.data(layout, stanza)
local data = {};
-
- for field_tag in stanza:childtags() do
- local field_type;
- for n, field in ipairs(layout) do
+ local errors = {};
+
+ for _, field in ipairs(layout) do
+ local tag;
+ for field_tag in stanza:childtags() do
if field.name == field_tag.attr.var then
- field_type = field.type;
+ tag = field_tag;
break;
end
end
-
- local reader = field_readers[field_type];
+
+ local reader = field_readers[field.type];
+ local verifier = field.verifier or field_verifiers[field.type];
if reader then
- data[field_tag.attr.var] = reader(field_tag);
+ data[field.name] = reader(tag);
+ if verifier then
+ errors[field.name] = verifier(data[field.name], tag, field.required);
+ end
end
-
+ end
+ if next(errors) then
+ return data, errors;
end
return data;
end
@@ -134,12 +143,32 @@ field_readers["text-single"] =
end
end
+field_verifiers["text-single"] =
+ function (data, field_tag, required)
+ if ((not data) or (#data == 0)) and required then
+ return "Required value missing";
+ end
+ end
+
field_readers["text-private"] =
field_readers["text-single"];
+field_verifiers["text-private"] =
+ field_verifiers["text-single"];
+
field_readers["jid-single"] =
field_readers["text-single"];
+field_verifiers["jid-single"] =
+ function (data, field_tag, required)
+ if #data == 0 and required then
+ return "Required value missing";
+ end
+ if not jid_prep(data) then
+ return "Invalid JID";
+ end
+ end
+
field_readers["jid-multi"] =
function (field_tag)
local result = {};
@@ -151,6 +180,19 @@ field_readers["jid-multi"] =
return result;
end
+field_verifiers["jid-multi"] =
+ function (data, field_tag, required)
+ if #data == 0 and required then
+ return "Required value missing";
+ end
+
+ for _, jid in ipairs(data) do
+ if not jid_prep(jid) then
+ return "Invalid JID";
+ end
+ end
+ end
+
field_readers["text-multi"] =
function (field_tag)
local result = {};
@@ -162,9 +204,15 @@ field_readers["text-multi"] =
return t_concat(result, "\n");
end
+field_verifiers["text-multi"] =
+ field_verifiers["text-single"];
+
field_readers["list-single"] =
field_readers["text-single"];
+field_verifiers["list-single"] =
+ field_verifiers["text-single"];
+
field_readers["list-multi"] =
function (field_tag)
local result = {};
@@ -176,6 +224,13 @@ field_readers["list-multi"] =
return result;
end
+field_verifiers["list-multi"] =
+ function (data, field_tag, required)
+ if #data == 0 and required then
+ return "Required value missing";
+ end
+ end
+
field_readers["boolean"] =
function (field_tag)
local value = field_tag:child_with_name("value");
@@ -188,6 +243,17 @@ field_readers["boolean"] =
end
end
+field_verifiers["boolean"] =
+ function (data, field_tag, required)
+ data = field_readers["text-single"](field_tag);
+ if #data == 0 and required then
+ return "Required value missing";
+ end
+ if data ~= "1" and data ~= "true" and data ~= "0" and data ~= "false" then
+ return "Invalid boolean representation";
+ end
+ end
+
field_readers["hidden"] =
function (field_tag)
local value = field_tag:child_with_name("value");
@@ -195,6 +261,11 @@ field_readers["hidden"] =
return value[1];
end
end
+
+field_verifiers["hidden"] =
+ function (data, field_tag, required)
+ return nil;
+ end
return _M;