From a4d1e9a81551dea9d8d57ba34b0f9bc7be6c9321 Mon Sep 17 00:00:00 2001
From: Guillermo Ramos
Date: Tue, 11 Feb 2020 17:40:08 +0100
Subject: Highlight URLs

---
 lib/waev_web/templates/exports/show.html.eex |  2 +-
 lib/waev_web/views/exports_view.ex           | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

(limited to 'lib/waev_web')

diff --git a/lib/waev_web/templates/exports/show.html.eex b/lib/waev_web/templates/exports/show.html.eex
index 9ac011e..6356804 100644
--- a/lib/waev_web/templates/exports/show.html.eex
+++ b/lib/waev_web/templates/exports/show.html.eex
@@ -26,7 +26,7 @@
         <% _ -> %>
       <% end %>
 
-      <div><%= message.text %></div>
+      <div><%= highlight_urls(message.text) %></div>
       <div class="message-date">
         <%= message.date %>
       </div>
diff --git a/lib/waev_web/views/exports_view.ex b/lib/waev_web/views/exports_view.ex
index c4a1b59..4fc9a9e 100644
--- a/lib/waev_web/views/exports_view.ex
+++ b/lib/waev_web/views/exports_view.ex
@@ -22,4 +22,16 @@ defmodule WaevWeb.ExportsView do
 <img class="avatar <%= modifier %>" src="<%= Routes.exports_path(@conn, :get_avatar, @id, party.name) %>" />
 """
   end
+
+  def highlight_urls(nil), do: ""
+  def highlight_urls(text) do
+    url_re = ~r/https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,6}\b([-a-zA-Z0-9@:%_\+.~#?&\/\/=]*)/
+
+    url_re
+    |> Regex.scan(text)
+    |> Enum.reduce(text, fn [url|_], t ->
+      String.replace(t, url, "<a target=\"_blank\" href=#{url}>#{url}</a>", global: false)
+    |> raw()
+    end)
+  end
 end
-- 
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