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diff --git a/lib/auto_linker.ex b/lib/auto_linker.ex
index b843a8d..0568068 100644
--- a/lib/auto_linker.ex
+++ b/lib/auto_linker.ex
@@ -1,61 +1,60 @@
defmodule AutoLinker do
@moduledoc """
Create url links from text containing urls.
Turns an input string like `"Check out google.com"` into
`Check out "<a href=\"http://google.com\" target=\"_blank\" rel=\"noopener noreferrer\">google.com</a>"`
## Examples
iex> AutoLinker.link("google.com")
~s(<a href="http://google.com" class="auto-linker" target="_blank" rel="noopener noreferrer">google.com</a>)
iex> AutoLinker.link("google.com", new_window: false, rel: false)
~s(<a href="http://google.com" class="auto-linker">google.com</a>)
iex> AutoLinker.link("google.com", new_window: false, rel: false, class: false)
~s(<a href="http://google.com">google.com</a>)
"""
import AutoLinker.Parser
@doc """
Auto link a string.
Options:
* `class: "auto-linker"` - specify the class to be added to the generated link. false to clear
* `rel: "noopener noreferrer"` - override the rel attribute. false to clear
* `new_window: true` - set to false to remove `target='_blank'` attribute
* `truncate: false` - Set to a number to truncate urls longer then the number. Truncated urls will end in `..`
* `strip_prefix: true` - Strip the scheme prefix
* `exclude_class: false` - Set to a class name when you don't want urls auto linked in the html of the give class
* `exclude_id: false` - Set to an element id when you don't want urls auto linked in the html of the give element
- * `exclude_patterns: ["```"]` - Don't link anything between the the pattern
* `email: false` - link email links
* `mention: false` - link @mentions (when `true`, requires `mention_prefix` or `mention_handler` options to be set)
* `mention_prefix: nil` - a prefix to build a link for a mention (example: `https://example.com/user/`)
* `mention_handler: nil` - a custom handler to validate and formart a mention
* `hashtag: false` - link #hashtags (when `true`, requires `hashtag_prefix` or `hashtag_handler` options to be set)
* `hashtag_prefix: nil` - a prefix to build a link for a hashtag (example: `https://example.com/tag/`)
* `hashtag_handler: nil` - a custom handler to validate and formart a hashtag
* `extra: false` - link urls with rarely used schemes (magnet, ipfs, irc, etc.)
* `validate_tld: true` - Set to false to disable TLD validation for urls/emails, also can be set to :no_scheme to validate TLDs only for urls without a scheme (e.g `example.com` will be validated, but `http://example.loki` won't)
Each of the above options can be specified when calling `link(text, opts)`
or can be set in the `:auto_linker`'s configuration. For example:
config :auto_linker,
class: false,
new_window: false
Note that passing opts to `link/2` will override the configuration settings.
"""
def link(text, opts \\ []) do
parse(text, opts)
end
def link_map(text, acc, opts \\ []) do
parse({text, acc}, opts)
end
end
diff --git a/lib/auto_linker/builder.ex b/lib/auto_linker/builder.ex
index 2cf714b..560a3b2 100644
--- a/lib/auto_linker/builder.ex
+++ b/lib/auto_linker/builder.ex
@@ -1,139 +1,145 @@
defmodule AutoLinker.Builder do
@moduledoc """
Module for building the auto generated link.
"""
@doc """
Create a link.
"""
def create_link(text, opts) do
url = add_scheme(text)
[]
|> build_attrs(url, opts, :rel)
|> build_attrs(url, opts, :target)
|> build_attrs(url, opts, :class)
|> build_attrs(url, opts, :href)
|> format_url(text, opts)
end
defp build_attrs(attrs, uri, %{rel: get_rel}, :rel) when is_function(get_rel, 1) do
case get_rel.(uri) do
nil -> attrs
rel -> [{:rel, rel} | attrs]
end
end
defp build_attrs(attrs, _, opts, :rel) do
- if rel = Map.get(opts, :rel, "noopener noreferrer"), do: [{:rel, rel} | attrs], else: attrs
+ case Map.get(opts, :rel, "noopener noreferrer") do
+ rel when is_binary(rel) -> [{:rel, rel} | attrs]
+ _ -> attrs
+ end
end
defp build_attrs(attrs, _, opts, :target) do
if Map.get(opts, :new_window, true), do: [{:target, :_blank} | attrs], else: attrs
end
defp build_attrs(attrs, _, opts, :class) do
- if cls = Map.get(opts, :class, "auto-linker"), do: [{:class, cls} | attrs], else: attrs
+ case Map.get(opts, :class, "auto-linker") do
+ cls when is_binary(cls) -> [{:class, cls} | attrs]
+ _ -> attrs
+ end
end
defp build_attrs(attrs, url, _opts, :href) do
[{:href, url} | attrs]
end
defp add_scheme("http://" <> _ = url), do: url
defp add_scheme("https://" <> _ = url), do: url
defp add_scheme(url), do: "http://" <> url
defp format_url(attrs, url, opts) do
url =
url
|> strip_prefix(Map.get(opts, :strip_prefix, true))
|> truncate(Map.get(opts, :truncate, false))
attrs = format_attrs(attrs)
"<a #{attrs}>#{url}</a>"
end
defp format_attrs(attrs) do
attrs
|> Enum.map(fn {key, value} -> ~s(#{key}="#{value}") end)
|> Enum.join(" ")
end
defp truncate(url, false), do: url
defp truncate(url, len) when len < 3, do: url
defp truncate(url, len) do
if String.length(url) > len, do: String.slice(url, 0, len - 2) <> "...", else: url
end
defp strip_prefix(url, true) do
url
|> String.replace(~r/^https?:\/\//, "")
|> String.replace(~r/^www\./, "")
end
defp strip_prefix(url, _), do: url
def create_mention_link("@" <> name, _buffer, opts) do
mention_prefix = opts[:mention_prefix]
url = mention_prefix <> name
[]
|> build_attrs(url, opts, :rel)
|> build_attrs(url, opts, :target)
|> build_attrs(url, opts, :class)
|> build_attrs(url, opts, :href)
|> format_mention(name, opts)
end
def create_hashtag_link("#" <> tag, _buffer, opts) do
hashtag_prefix = opts[:hashtag_prefix]
url = hashtag_prefix <> tag
[]
|> build_attrs(url, opts, :rel)
|> build_attrs(url, opts, :target)
|> build_attrs(url, opts, :class)
|> build_attrs(url, opts, :href)
|> format_hashtag(tag, opts)
end
def create_email_link(email, opts) do
[]
|> build_attrs(email, opts, :class)
|> build_attrs("mailto:#{email}", opts, :href)
|> format_email(email, opts)
end
def create_extra_link(uri, opts) do
[]
|> build_attrs(uri, opts, :class)
|> build_attrs(uri, opts, :rel)
|> build_attrs(uri, opts, :target)
|> build_attrs(uri, opts, :href)
|> format_extra(uri, opts)
end
def format_mention(attrs, name, _opts) do
attrs = format_attrs(attrs)
"<a #{attrs}>@#{name}</a>"
end
def format_hashtag(attrs, tag, _opts) do
attrs = format_attrs(attrs)
"<a #{attrs}>##{tag}</a>"
end
def format_email(attrs, email, _opts) do
attrs = format_attrs(attrs)
~s(<a #{attrs}>#{email}</a>)
end
def format_extra(attrs, uri, _opts) do
attrs = format_attrs(attrs)
~s(<a #{attrs}>#{uri}</a>)
end
end
diff --git a/lib/auto_linker/parser.ex b/lib/auto_linker/parser.ex
index a427888..68dfa36 100644
--- a/lib/auto_linker/parser.ex
+++ b/lib/auto_linker/parser.ex
@@ -1,372 +1,332 @@
defmodule AutoLinker.Parser do
@moduledoc """
Module to handle parsing the the input string.
"""
alias AutoLinker.Builder
@invalid_url ~r/(\.\.+)|(^(\d+\.){1,2}\d+$)/
@match_url ~r{^(?:\W*)?(?<url>(?:https?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~%:\/?#[\]@!\$&'\(\)\*\+,;=.]+$)}u
@match_hostname ~r{^\W*(?<scheme>https?:\/\/)?(?:[^@\n]+\\w@)?(?<host>[^:#~\/\n?]+)}u
@match_ip ~r"^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$"
# @user
# @user@example.com
@match_mention ~r"^@[a-zA-Z\d_-]+@[a-zA-Z0-9_-](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*|@[a-zA-Z\d_-]+"u
# https://www.w3.org/TR/html5/forms.html#valid-e-mail-address
@match_email ~r"^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$"u
@match_hashtag ~r/^(?<tag>\#[[:word:]_]*[[:alpha:]_·][[:word:]_·\p{M}]*)/u
@prefix_extra [
"magnet:?",
"dweb://",
"dat://",
"gopher://",
"ipfs://",
"ipns://",
"irc://",
"ircs://",
"irc6://",
"mumble://",
"ssb://"
]
@tlds "./priv/tlds.txt" |> File.read!() |> String.split("\n", trim: true) |> MapSet.new()
@default_opts %{
url: true,
validate_tld: true
}
@doc """
Parse the given string, identifying items to link.
- Parses the string, replacing the matching urls and phone numbers with an html link.
+ Parses the string, replacing the matching urls with an html link.
## Examples
iex> AutoLinker.Parser.parse("Check out google.com")
~s{Check out <a href="http://google.com" class="auto-linker" target="_blank" rel="noopener noreferrer">google.com</a>}
"""
+ @types [:url, :email, :hashtag, :mention, :extra]
+
def parse(input, opts \\ %{})
def parse(input, opts) when is_binary(input), do: {input, %{}} |> parse(opts) |> elem(0)
def parse(input, list) when is_list(list), do: parse(input, Enum.into(list, %{}))
def parse(input, opts) do
opts = Map.merge(@default_opts, opts)
+ Enum.reduce(opts, input, fn
+ {type, true}, input when type in @types ->
+ do_parse(input, opts, {"", "", :parsing}, type)
- do_parse(input, Map.merge(config, opts))
- end
-
- defp do_parse(input, %{url: false} = opts), do: do_parse(input, Map.delete(opts, :url))
-
- defp do_parse(input, %{hashtag: true} = opts) do
- input
- |> do_parse(opts, {"", "", :parsing}, &check_and_link_hashtag/3)
- |> do_parse(Map.delete(opts, :hashtag))
- end
-
- defp do_parse(input, %{extra: true} = opts) do
- input
- |> do_parse(opts, {"", "", :parsing}, &check_and_link_extra/3)
- |> do_parse(Map.delete(opts, :extra))
- end
-
- defp do_parse(input, %{email: true} = opts) do
- input
- |> do_parse(opts, {"", "", :parsing}, &check_and_link_email/3)
- |> do_parse(Map.delete(opts, :email))
- end
-
- defp do_parse({text, user_acc}, %{url: _} = opts) do
- input =
- with exclude <- Map.get(opts, :exclude_patterns),
- true <- is_list(exclude),
- true <- String.starts_with?(text, exclude) do
- {text, user_acc}
- else
- _ ->
- do_parse(
- {text, user_acc},
- opts,
- {"", "", :parsing},
- &check_and_link/3
- )
- end
-
- do_parse(input, Map.delete(opts, :url))
- end
-
- defp do_parse(input, %{mention: true} = opts) do
- input
- |> do_parse(opts, {"", "", :parsing}, &check_and_link_mention/3)
- |> do_parse(Map.delete(opts, :mention))
+ _, input ->
+ input
+ end)
end
- defp do_parse(input, _), do: input
-
defp do_parse({"", user_acc}, _opts, {"", acc, _}, _handler),
do: {acc, user_acc}
- defp do_parse({"<a" <> text, user_acc}, opts, {buffer, acc, :parsing}, handler),
- do: do_parse({text, user_acc}, opts, {"", acc <> buffer <> "<a", :skip}, handler)
+ defp do_parse({"<a" <> text, user_acc}, opts, {buffer, acc, :parsing}, type),
+ do: do_parse({text, user_acc}, opts, {"", acc <> buffer <> "<a", :skip}, type)
- defp do_parse({"<pre" <> text, user_acc}, opts, {buffer, acc, :parsing}, handler),
- do: do_parse({text, user_acc}, opts, {"", acc <> buffer <> "<pre", :skip}, handler)
+ defp do_parse({"<pre" <> text, user_acc}, opts, {buffer, acc, :parsing}, type),
+ do: do_parse({text, user_acc}, opts, {"", acc <> buffer <> "<pre", :skip}, type)
- defp do_parse({"<code" <> text, user_acc}, opts, {buffer, acc, :parsing}, handler),
- do: do_parse({text, user_acc}, opts, {"", acc <> buffer <> "<code", :skip}, handler)
+ defp do_parse({"<code" <> text, user_acc}, opts, {buffer, acc, :parsing}, type),
+ do: do_parse({text, user_acc}, opts, {"", acc <> buffer <> "<code", :skip}, type)
- defp do_parse({"</a>" <> text, user_acc}, opts, {buffer, acc, :skip}, handler),
- do: do_parse({text, user_acc}, opts, {"", acc <> buffer <> "</a>", :parsing}, handler)
+ defp do_parse({"</a>" <> text, user_acc}, opts, {buffer, acc, :skip}, type),
+ do: do_parse({text, user_acc}, opts, {"", acc <> buffer <> "</a>", :parsing}, type)
- defp do_parse({"</pre>" <> text, user_acc}, opts, {buffer, acc, :skip}, handler),
- do: do_parse({text, user_acc}, opts, {"", acc <> buffer <> "</pre>", :parsing}, handler)
+ defp do_parse({"</pre>" <> text, user_acc}, opts, {buffer, acc, :skip}, type),
+ do: do_parse({text, user_acc}, opts, {"", acc <> buffer <> "</pre>", :parsing}, type)
- defp do_parse({"</code>" <> text, user_acc}, opts, {buffer, acc, :skip}, handler),
- do: do_parse({text, user_acc}, opts, {"", acc <> buffer <> "</code>", :parsing}, handler)
+ defp do_parse({"</code>" <> text, user_acc}, opts, {buffer, acc, :skip}, type),
+ do: do_parse({text, user_acc}, opts, {"", acc <> buffer <> "</code>", :parsing}, type)
- defp do_parse({"<" <> text, user_acc}, opts, {"", acc, :parsing}, handler),
- do: do_parse({text, user_acc}, opts, {"<", acc, {:open, 1}}, handler)
+ defp do_parse({"<" <> text, user_acc}, opts, {"", acc, :parsing}, type),
+ do: do_parse({text, user_acc}, opts, {"<", acc, {:open, 1}}, type)
- defp do_parse({"<" <> text, user_acc}, opts, {"", acc, {:html, level}}, handler) do
- do_parse({text, user_acc}, opts, {"<", acc, {:open, level + 1}}, handler)
+ defp do_parse({"<" <> text, user_acc}, opts, {"", acc, {:html, level}}, type) do
+ do_parse({text, user_acc}, opts, {"<", acc, {:open, level + 1}}, type)
end
- defp do_parse({">" <> text, user_acc}, opts, {buffer, acc, {:attrs, level}}, handler),
+ defp do_parse({">" <> text, user_acc}, opts, {buffer, acc, {:attrs, level}}, type),
do:
do_parse(
{text, user_acc},
opts,
{"", acc <> buffer <> ">", {:html, level}},
- handler
+ type
)
- defp do_parse({<<ch::8>> <> text, user_acc}, opts, {"", acc, {:attrs, level}}, handler) do
- do_parse({text, user_acc}, opts, {"", acc <> <<ch::8>>, {:attrs, level}}, handler)
+ defp do_parse({<<ch::8>> <> text, user_acc}, opts, {"", acc, {:attrs, level}}, type) do
+ do_parse({text, user_acc}, opts, {"", acc <> <<ch::8>>, {:attrs, level}}, type)
end
- defp do_parse({"</" <> text, user_acc}, opts, {buffer, acc, {:html, level}}, handler) do
- {buffer, user_acc} = run_handler(handler, buffer, opts, user_acc)
+ defp do_parse({"</" <> text, user_acc}, opts, {buffer, acc, {:html, level}}, type) do
+ {buffer, user_acc} = link(type, buffer, opts, user_acc)
do_parse(
{text, user_acc},
opts,
{"", acc <> buffer <> "</", {:close, level}},
- handler
+ type
)
end
- defp do_parse({">" <> text, user_acc}, opts, {buffer, acc, {:close, 1}}, handler),
- do: do_parse({text, user_acc}, opts, {"", acc <> buffer <> ">", :parsing}, handler)
+ defp do_parse({">" <> text, user_acc}, opts, {buffer, acc, {:close, 1}}, type),
+ do: do_parse({text, user_acc}, opts, {"", acc <> buffer <> ">", :parsing}, type)
- defp do_parse({">" <> text, user_acc}, opts, {buffer, acc, {:close, level}}, handler),
+ defp do_parse({">" <> text, user_acc}, opts, {buffer, acc, {:close, level}}, type),
do:
do_parse(
{text, user_acc},
opts,
{"", acc <> buffer <> ">", {:html, level - 1}},
- handler
+ type
)
- defp do_parse({text, user_acc}, opts, {buffer, acc, {:open, level}}, handler) do
- do_parse({text, user_acc}, opts, {"", acc <> buffer, {:attrs, level}}, handler)
+ defp do_parse({text, user_acc}, opts, {buffer, acc, {:open, level}}, type) do
+ do_parse({text, user_acc}, opts, {"", acc <> buffer, {:attrs, level}}, type)
end
defp do_parse(
{<<char::bytes-size(1), text::binary>>, user_acc},
opts,
{buffer, acc, state},
- handler
+ type
)
when char in [" ", "\r", "\n"] do
- {buffer, user_acc} = run_handler(handler, buffer, opts, user_acc)
+ {buffer, user_acc} = link(type, buffer, opts, user_acc)
do_parse(
{text, user_acc},
opts,
{"", acc <> buffer <> char, state},
- handler
+ type
)
end
- defp do_parse({<<ch::8>>, user_acc}, opts, {buffer, acc, state}, handler) do
- {buffer, user_acc} = run_handler(handler, buffer <> <<ch::8>>, opts, user_acc)
+ defp do_parse({<<ch::8>>, user_acc}, opts, {buffer, acc, state}, type) do
+ {buffer, user_acc} = link(type, buffer <> <<ch::8>>, opts, user_acc)
do_parse(
{"", user_acc},
opts,
{"", acc <> buffer, state},
- handler
+ type
)
end
- defp do_parse({<<ch::8>> <> text, user_acc}, opts, {buffer, acc, state}, handler),
- do: do_parse({text, user_acc}, opts, {buffer <> <<ch::8>>, acc, state}, handler)
+ defp do_parse({<<ch::8>> <> text, user_acc}, opts, {buffer, acc, state}, type),
+ do: do_parse({text, user_acc}, opts, {buffer <> <<ch::8>>, acc, state}, type)
- def check_and_link(buffer, opts, _user_acc) do
+ def check_and_link(:url, buffer, opts, _user_acc) do
str = strip_parens(buffer)
if url?(str, opts) do
case @match_url |> Regex.run(str, capture: [:url]) |> hd() do
^buffer -> link_url(buffer, opts)
url -> String.replace(buffer, url, link_url(url, opts))
end
else
buffer
end
end
- defp strip_parens("(" <> buffer) do
- ~r/[^\)]*/ |> Regex.run(buffer) |> hd()
- end
-
- defp strip_parens(buffer), do: buffer
-
- def check_and_link_email(buffer, opts, _user_acc) do
+ def check_and_link(:email, buffer, opts, _user_acc) do
if email?(buffer, opts), do: link_email(buffer, opts), else: buffer
end
- def check_and_link_mention(buffer, opts, user_acc) do
+ def check_and_link(:mention, buffer, opts, user_acc) do
buffer
|> match_mention
|> link_mention(buffer, opts, user_acc)
end
- def check_and_link_hashtag(buffer, opts, user_acc) do
+ def check_and_link(:hashtag, buffer, opts, user_acc) do
buffer
|> match_hashtag
|> link_hashtag(buffer, opts, user_acc)
end
- def check_and_link_extra("xmpp:" <> handle, opts, _user_acc) do
+ def check_and_link(:extra, "xmpp:" <> handle, opts, _user_acc) do
if email?(handle, opts), do: link_extra("xmpp:" <> handle, opts), else: handle
end
- def check_and_link_extra(buffer, opts, _user_acc) do
+ def check_and_link(:extra, buffer, opts, _user_acc) do
if String.starts_with?(buffer, @prefix_extra), do: link_extra(buffer, opts), else: buffer
end
+ defp strip_parens("(" <> buffer) do
+ ~r/[^\)]*/ |> Regex.run(buffer) |> hd()
+ end
+
+ defp strip_parens(buffer), do: buffer
+
# @doc false
def url?(buffer, opts) do
valid_url?(buffer) && Regex.match?(@match_url, buffer) && valid_tld?(buffer, opts)
end
def email?(buffer, opts) do
valid_url?(buffer) && Regex.match?(@match_email, buffer) && valid_tld?(buffer, opts)
end
defp valid_url?(url), do: !Regex.match?(@invalid_url, url)
@doc """
Validates a URL's TLD. Returns a boolean.
Will return `true` if `:validate_tld` option set to `false`.
Will skip validation and return `true` if `:validate_tld` set to `:no_scheme` and the url has a scheme.
"""
def valid_tld?(url, opts) do
[scheme, host] = Regex.run(@match_hostname, url, capture: [:scheme, :host])
cond do
opts[:validate_tld] == false ->
true
ip?(host) ->
true
# don't validate if scheme is present
opts[:validate_tld] == :no_scheme and scheme != "" ->
true
true ->
tld = host |> String.split(".") |> List.last()
MapSet.member?(@tlds, tld)
end
end
def ip?(buffer), do: Regex.match?(@match_ip, buffer)
def match_mention(buffer) do
case Regex.run(@match_mention, buffer) do
[mention] -> mention
_ -> nil
end
end
def match_hashtag(buffer) do
case Regex.run(@match_hashtag, buffer, capture: [:tag]) do
[hashtag] -> hashtag
_ -> nil
end
end
def link_hashtag(nil, buffer, _, _user_acc), do: buffer
def link_hashtag(hashtag, buffer, %{hashtag_handler: hashtag_handler} = opts, user_acc) do
hashtag
|> hashtag_handler.(buffer, opts, user_acc)
|> maybe_update_buffer(hashtag, buffer)
end
def link_hashtag(hashtag, buffer, opts, _user_acc) do
hashtag
|> Builder.create_hashtag_link(buffer, opts)
|> maybe_update_buffer(hashtag, buffer)
end
def link_mention(nil, buffer, _, user_acc), do: {buffer, user_acc}
def link_mention(mention, buffer, %{mention_handler: mention_handler} = opts, user_acc) do
mention
|> mention_handler.(buffer, opts, user_acc)
|> maybe_update_buffer(mention, buffer)
end
def link_mention(mention, buffer, opts, _user_acc) do
mention
|> Builder.create_mention_link(buffer, opts)
|> maybe_update_buffer(mention, buffer)
end
defp maybe_update_buffer(out, match, buffer) when is_binary(out) do
maybe_update_buffer({out, nil}, match, buffer)
end
defp maybe_update_buffer({out, user_acc}, match, buffer)
when match != buffer and out != buffer do
out = String.replace(buffer, match, out)
{out, user_acc}
end
defp maybe_update_buffer(out, _match, _buffer), do: out
@doc false
def link_url(buffer, opts) do
Builder.create_link(buffer, opts)
end
@doc false
def link_email(buffer, opts) do
Builder.create_email_link(buffer, opts)
end
def link_extra(buffer, opts) do
Builder.create_extra_link(buffer, opts)
end
- defp run_handler(handler, buffer, opts, user_acc) do
- case handler.(buffer, opts, user_acc) do
+ defp link(type, buffer, opts, user_acc) do
+ case check_and_link(type, buffer, opts, user_acc) do
{buffer, user_acc} -> {buffer, user_acc}
buffer -> {buffer, user_acc}
end
end
end
diff --git a/test/parser_test.exs b/test/parser_test.exs
index 7abeb6f..ca0dfe9 100644
--- a/test/parser_test.exs
+++ b/test/parser_test.exs
@@ -1,266 +1,261 @@
defmodule AutoLinker.ParserTest do
use ExUnit.Case, async: true
doctest AutoLinker.Parser
import AutoLinker.Parser
describe "url?/2" do
test "valid scheme true" do
valid_scheme_urls()
|> Enum.each(fn url ->
assert url?(url, scheme: true, validate_tld: true)
end)
end
test "invalid scheme true" do
invalid_scheme_urls()
|> Enum.each(fn url ->
refute url?(url, scheme: true, validate_tld: true)
end)
end
test "valid scheme false" do
valid_non_scheme_urls()
|> Enum.each(fn url ->
assert url?(url, scheme: false, validate_tld: true)
end)
end
test "invalid scheme false" do
invalid_non_scheme_urls()
|> Enum.each(fn url ->
refute url?(url, scheme: false, validate_tld: true)
end)
end
test "checks the tld for url with a scheme when validate_tld: true" do
custom_tld_scheme_urls()
|> Enum.each(fn url ->
refute url?(url, scheme: true, validate_tld: true)
end)
end
test "does not check the tld for url with a scheme when validate_tld: false" do
custom_tld_scheme_urls()
|> Enum.each(fn url ->
assert url?(url, scheme: true, validate_tld: false)
end)
end
test "does not check the tld for url with a scheme when validate_tld: :no_scheme" do
custom_tld_scheme_urls()
|> Enum.each(fn url ->
assert url?(url, scheme: true, validate_tld: :no_scheme)
end)
end
test "checks the tld for url without a scheme when validate_tld: true" do
custom_tld_non_scheme_urls()
|> Enum.each(fn url ->
refute url?(url, scheme: false, validate_tld: true)
end)
end
test "checks the tld for url without a scheme when validate_tld: :no_scheme" do
custom_tld_non_scheme_urls()
|> Enum.each(fn url ->
refute url?(url, scheme: false, validate_tld: :no_scheme)
end)
end
test "does not check the tld for url without a scheme when validate_tld: false" do
custom_tld_non_scheme_urls()
|> Enum.each(fn url ->
assert url?(url, scheme: false, validate_tld: false)
end)
end
end
describe "email?" do
test "identifies valid emails" do
valid_emails()
|> Enum.each(fn email ->
assert email?(email, [])
end)
end
test "identifies invalid emails" do
invalid_emails()
|> Enum.each(fn email ->
refute email?(email, [])
end)
end
test "does not validate tlds when validate_tld: false" do
valid_custom_tld_emails()
|> Enum.each(fn email ->
assert email?(email, validate_tld: false)
end)
end
test "validates tlds when validate_tld: true" do
valid_custom_tld_emails()
|> Enum.each(fn email ->
refute email?(email, validate_tld: true)
end)
end
end
describe "parse" do
test "handle line breakes" do
text = "google.com\r\nssss"
expected =
"<a href=\"http://google.com\" class=\"auto-linker\" target=\"_blank\" rel=\"noopener noreferrer\">google.com</a>\r\nssss"
assert parse(text) == expected
end
test "does not link attributes" do
text = "Check out <a href='google.com'>google</a>"
assert parse(text) == text
text = "Check out <img src='google.com' alt='google.com'/>"
assert parse(text) == text
text = "Check out <span><img src='google.com' alt='google.com'/></span>"
assert parse(text) == text
end
test "does not link inside `<pre>` and `<code>`" do
text = "<pre>google.com</pre>"
assert parse(text) == text
text = "<code>google.com</code>"
assert parse(text) == text
text = "<pre><code>google.com</code></pre>"
assert parse(text) == text
end
test "links url inside html" do
text = "<div>google.com</div>"
expected = "<div><a href=\"http://google.com\">google.com</a></div>"
assert parse(text, class: false, rel: false, new_window: false) == expected
text = "Check out <div class='section'>google.com</div>"
expected =
"Check out <div class='section'><a href=\"http://google.com\">google.com</a></div>"
assert parse(text, class: false, rel: false, new_window: false) == expected
end
test "links url inside nested html" do
text = "<p><strong>google.com</strong></p>"
expected = "<p><strong><a href=\"http://google.com\">google.com</a></strong></p>"
assert parse(text, class: false, rel: false, new_window: false) == expected
end
- test "excludes html with specified class" do
- text = "```Check out <div class='section'>google.com</div>```"
- assert parse(text, exclude_patterns: ["```"]) == text
- end
-
test "do not link parens" do
text = " foo (https://example.com/path/folder/), bar"
expected =
" foo (<a href=\"https://example.com/path/folder/\">example.com/path/folder/</a>), bar"
assert parse(text, class: false, rel: false, new_window: false, scheme: true) == expected
text = " foo (example.com/path/folder/), bar"
expected =
" foo (<a href=\"http://example.com/path/folder/\">example.com/path/folder/</a>), bar"
assert parse(text, class: false, rel: false, new_window: false) == expected
end
test "do not link urls" do
text = "google.com"
assert parse(text, url: false) == text
end
test "do not link `:test.test`" do
text = ":test.test"
assert parse(text, %{
scheme: true,
extra: true,
class: false,
strip_prefix: false,
new_window: false,
rel: false
}) == text
end
end
def valid_number?([list], number) do
assert List.last(list) == number
end
def valid_number?(_, _), do: false
def valid_scheme_urls,
do: [
"https://www.example.com",
"http://www2.example.com",
"http://home.example-site.com",
"http://blog.example.com",
"http://www.example.com/product",
"http://www.example.com/products?id=1&page=2",
"http://www.example.com#up",
"http://255.255.255.255",
"http://www.site.com:8008"
]
def invalid_scheme_urls,
do: [
"http://invalid.com/perl.cgi?key= | http://web-site.com/cgi-bin/perl.cgi?key1=value1&key2"
]
def valid_non_scheme_urls,
do: [
"www.example.com",
"www2.example.com",
"www.example.com:2000",
"www.example.com?abc=1",
"example.example-site.com",
"example.com",
"example.ca",
"example.tv",
"example.com:999?one=one",
"255.255.255.255",
"255.255.255.255:3000?one=1&two=2"
]
def invalid_non_scheme_urls,
do: [
"invalid.com/perl.cgi?key= | web-site.com/cgi-bin/perl.cgi?key1=value1&key2",
"invalid.",
"hi..there",
"555.555.5555"
]
def custom_tld_scheme_urls,
do: [
"http://whatever.null/",
"https://example.o/index.html",
"http://pleroma.i2p/test",
"http://misskey.loki"
]
def custom_tld_non_scheme_urls,
do: [
"whatever.null/",
"example.o/index.html",
"pleroma.i2p/test",
"misskey.loki"
]
def valid_emails, do: ["rms@ai.mit.edu", "vc@cock.li"]
def invalid_emails, do: ["rms[at]ai.mit.edu", "vc@cock", "xmpp:lain@trashserver.net"]
def valid_custom_tld_emails, do: ["guardian@33y6fjyhs3phzfjj.onion", "hi@company.null"]
end

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