view tools/form2table.lua @ 14179:25beb66fab38 13.0

util.crypto: Use post-Lua 5.1 buffer API Tha Lua 5.1 buffer API was frustrating to work with. luaL_prepbuffer() only allocates LUAL_BUFFERSIZE - there is no way to request a specific size. LUAL_BUFFERSIZE is set to BUFSIZ by default, which is generally 8192 bytes on Linux, however it may vary between platforms. The variation means this buffer could potentially overflow (small BUFSIZ with large signature). The Lua 5.2+ buffer API enables requesting a specific buffer size, so that's what we do now.
author Matthew Wild <mwild1@gmail.com>
date Mon, 25 May 2026 15:11:47 +0100
parents 879a6a33c21b
children
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line source

-- Read an XML dataform and spit out a serialized Lua table of it
if not pcall(require, "prosody.loader") then
	pcall(require, "loader");
end

local function from_stanza(stanza)
	local layout = {
		title = stanza:get_child_text("title");
		instructions = stanza:get_child_text("instructions");
	};
	for tag in stanza:childtags("field") do
		local field = {
			name = tag.attr.var;
			type = tag.attr.type;
			label = tag.attr.label;
			desc = tag:get_child_text("desc");
			required = tag:get_child("required") and true or nil;
			value = tag:get_child_text("value");
			options = nil;
		};

		if field.type == "list-single" or field.type == "list-multi" then
			local options = {};
			for option in tag:childtags("option") do
				options[#options+1] = { label = option.attr.label, value = option:get_child_text("value") };
			end
			field.options = options;
		end

		if field.type == "jid-multi" or field.type == "list-multi" or field.type == "text-multi" then
			local values = {};
			for value in tag:childtags("value") do
				values[#values+1] = value:get_text();
			end
			if field.type == "text-multi" then
				values = table.concat(values, "\n");
			end
			field.value = values;
		end

		if field.type == "boolean" then
			field.value = field.value == "true" or field.value == "1";
		end

		layout[#layout+1] = field;

	end
	return layout;
end

print("dataforms.new " .. require"prosody.util.serialization".serialize(from_stanza(require"prosody.util.xml".parse(io.read("*a"))),
	{ unquoted = true }))