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util.dataforms: Fix interaction of required fields and empty string values (fixes #521)

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This commit is contained in:
Kim Alvefur 2015-09-12 17:49:47 +02:00
parent 5739f89a5d
commit e91df7d788
1 changed files with 4 additions and 3 deletions
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7
util/dataforms.lua
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@ -147,11 +147,12 @@ end
local function simple_text(field_tag, required)
local data = field_tag:get_child_text("value");
if data and #data > 0 then
return data
elseif required then
-- XEP-0004 does not say if an empty string is acceptable for a required value
-- so we will follow HTML5 which says that empty string means missing
if required and (data == nil or data == "") then
return nil, "Required value missing";
end
return data; -- Return whatever get_child_text returned, even if empty string
end
field_readers["text-single"] = simple_text;