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inline regex into functions body #72

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inline regex into functions body #72

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14 changes: 5 additions & 9 deletions lib/html_sanitize_ex/scrubber/meta.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -122,7 +122,9 @@ defmodule HtmlSanitizeEx.Scrubber.Meta do
"""
defmacro allow_tags_with_style_attributes(list) do
list
|> Enum.map(fn tag_name -> allow_this_tag_with_style_attribute(tag_name) end)
|> Enum.map(fn tag_name ->
allow_this_tag_with_style_attribute(tag_name)
end)
end

@doc """
Expand Down Expand Up @@ -214,23 +216,17 @@ defmodule HtmlSanitizeEx.Scrubber.Meta do
end

@protocol_separator ":|(&#0*58)|(&#x70)|(&#x0*3a)|(%|%)3A"
@protocol_separator_regex Regex.compile!(@protocol_separator, "mi")

@http_like_scheme "(?<scheme>.+?)(#{@protocol_separator})//"
@other_schemes "(?<other_schemes>mailto)(#{@protocol_separator})"

@scheme_capture Regex.compile!(
"(#{@http_like_scheme})|(#{@other_schemes})",
"mi"
)

@max_scheme_length 20

def scrub_attribute(unquote(tag_name), {unquote(attr_name), uri}) do
valid_schema =
if uri =~ @protocol_separator_regex do
if uri =~ ~r/#{@protocol_separator}/mi do
case Regex.named_captures(
@scheme_capture,
~r/(#{@http_like_scheme})|(#{@other_schemes})/mi,
uri |> String.slice(0..@max_scheme_length)
) do
%{"scheme" => scheme, "other_schemes" => ""} ->
Expand Down
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