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diff --git a/lib/fast_sanitize/fragment.ex b/lib/fast_sanitize/fragment.ex
index ec823a9..da9eec2 100644
--- a/lib/fast_sanitize/fragment.ex
+++ b/lib/fast_sanitize/fragment.ex
@@ -1,205 +1,74 @@
defmodule FastSanitize.Fragment do
import Plug.HTML, only: [html_escape_to_iodata: 1]
- # Generate a lookup table from atoms to binaries
- @known_tags [
- :a,
- :article,
- :aside,
- :body,
- :br,
- :details,
- :div,
- :h1,
- :h2,
- :h3,
- :h4,
- :h5,
- :h6,
- :head,
- :header,
- :hgroup,
- :hr,
- :html,
- :footer,
- :nav,
- :p,
- :section,
- :span,
- :summary,
- :base,
- :basefont,
- :link,
- :meta,
- :style,
- :title,
- :button,
- :datalist,
- :fieldset,
- :form,
- :input,
- :keygen,
- :label,
- :legend,
- :meter,
- :optgroup,
- :option,
- :select,
- :textarea,
- :abbr,
- :acronym,
- :address,
- :b,
- :bdi,
- :bdo,
- :big,
- :blockquote,
- :center,
- :cite,
- :code,
- :del,
- :dfn,
- :em,
- :font,
- :i,
- :mark,
- :output,
- :pre,
- :progress,
- :q,
- :rp,
- :rt,
- :ruby,
- :s,
- :samp,
- :small,
- :strike,
- :strong,
- :sub,
- :sup,
- :tt,
- :u,
- :var,
- :wbr,
- :dd,
- :dir,
- :dl,
- :dt,
- :li,
- :ol,
- :menu,
- :ul,
- :caption,
- :col,
- :colgroup,
- :table,
- :tbody,
- :td,
- :tfoot,
- :thead,
- :th,
- :tr,
- :noscript,
- :script,
- :applet,
- :area,
- :audio,
- :canvas,
- :embed,
- :figcaption,
- :figure,
- :frame,
- :frameset,
- :iframe,
- :img,
- :map,
- :noframes,
- :object,
- :param,
- :source,
- :time,
- :video
- ]
-
- for tag <- @known_tags do
- string_tag = to_string(tag)
-
- def tag_to_string(unquote(tag)), do: unquote(string_tag)
- end
-
- def tag_to_string("" <> binary), do: binary
-
- def tag_to_string(atom), do: to_string(atom)
-
def to_tree(bin) do
with {:html, _, [{:head, _, _}, {:body, _, fragment}]} <-
Myhtmlex.decode(bin, format: [:nil_self_closing, :comment_tuple3, :html_atoms]) do
{:ok, fragment}
else
e ->
{:error, e}
end
end
defp build_attr_chunks([]), do: ""
defp build_attr_chunks(attrs) do
List.foldr(attrs, [], fn {k, v}, iodata ->
[[" ", html_escape_to_iodata(k), "=\"", html_escape_to_iodata(v), "\""] | iodata]
end)
end
- defp build_start_tag(tag, attrs, nil),
- do: ["<", tag_to_string(tag), build_attr_chunks(attrs), "/>"]
+ defp build_start_tag(tag, attrs, nil), do: ["<", to_string(tag), build_attr_chunks(attrs), "/>"]
defp build_start_tag(tag, attrs, _children) when length(attrs) == 0,
- do: ["<", tag_to_string(tag), ">"]
+ do: ["<", to_string(tag), ">"]
defp build_start_tag(tag, attrs, _children),
- do: ["<", tag_to_string(tag), build_attr_chunks(attrs), ">"]
+ do: ["<", to_string(tag), build_attr_chunks(attrs), ">"]
# empty tuple - fragment was clobbered, return nothing
defp fragment_to_html(nil, _), do: ""
defp fragment_to_html({}, _), do: ""
# text node
defp fragment_to_html(text, _) when is_binary(text), do: html_escape_to_iodata(text)
# comment node
defp fragment_to_html({:comment, _, text}, _), do: ["<!-- ", text, " -->"]
# bare subtree
defp fragment_to_html(subtree, scrubber) when is_list(subtree) do
subtree_to_iodata(subtree, scrubber)
end
# a node which can never accept children will have nil instead of a subtree
defp fragment_to_html({tag, attrs, nil}, _), do: build_start_tag(tag, attrs, nil)
# every other case, assume a subtree
defp fragment_to_html({tag, attrs, subtree}, scrubber) do
with start_tag <- build_start_tag(tag, attrs, subtree),
- end_tag <- ["</", tag_to_string(tag), ">"],
+ end_tag <- ["</", to_string(tag), ">"],
subtree <- subtree_to_iodata(subtree, scrubber) do
[start_tag, subtree, end_tag]
end
end
defp subtree_to_html([], _), do: {:ok, ""}
defp subtree_to_html(tree, scrubber) do
iodata = subtree_to_iodata(tree, scrubber)
rendered = :erlang.iolist_to_binary(iodata)
{:ok, rendered}
end
defp subtree_to_iodata(tree, scrubber) do
List.foldr(tree, [], fn node, iodata ->
[fragment_to_html(scrubber.scrub(node), scrubber) | iodata]
end)
end
def to_html(tree, scrubber \\ FastSanitize.Sanitizer.Dummy),
do: subtree_to_html(tree, scrubber)
end
diff --git a/lib/mix/tasks/fast_sanitize/bench.ex b/lib/mix/tasks/fast_sanitize/bench.ex
index f0f0358..dc70cac 100644
--- a/lib/mix/tasks/fast_sanitize/bench.ex
+++ b/lib/mix/tasks/fast_sanitize/bench.ex
@@ -1,24 +1,25 @@
defmodule Mix.Tasks.FastSanitize.Bench do
use Mix.Task
@input_dir "lib/mix/tasks/fast_sanitize/html"
def run(_) do
inputs =
Enum.reduce(File.ls!(@input_dir), %{}, fn input_name, acc ->
IO.inspect(input_name)
input = File.read!(Path.join(@input_dir, input_name))
Map.put(acc, input_name, input)
end)
+ |> IO.inspect()
Benchee.run(
%{
"FastSanitize strip tags" => fn input -> FastSanitize.strip_tags(input) end,
"HtmlSanitizeex strip tags" => fn input -> HtmlSanitizeEx.strip_tags(input) end,
"FastSanitize basic html" => fn input -> FastSanitize.basic_html(input) end,
"HtmlSanitizeex basic html" => fn input -> HtmlSanitizeEx.basic_html(input) end
},
inputs: inputs
)
end
end

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