From f665b166adbf28b9170288fb2d00b2637ae6f3e1 Mon Sep 17 00:00:00 2001
From: Chris Sexton <csexton@riverainc.com>
Date: Tue, 17 May 2016 22:16:00 -0400
Subject: [PATCH] Add regexp to clean ugly Slack URLs

---
 slack/slack.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/slack/slack.go b/slack/slack.go
index ead635f..cf453e5 100644
--- a/slack/slack.go
+++ b/slack/slack.go
@@ -11,6 +11,7 @@ import (
 	"log"
 	"net/http"
 	"net/url"
+	"regexp"
 	"strconv"
 	"strings"
 	"sync/atomic"
@@ -158,11 +159,16 @@ func (s *Slack) Serve() {
 	}
 }
 
+var urlDetector = regexp.MustCompile(`<(.+)://([^|^>]+).*>`)
+
 // Convert a slackMessage to a msg.Message
 func (s *Slack) buildMessage(m slackMessage) msg.Message {
 	log.Printf("DEBUG: msg: %#v", m)
 	text := html.UnescapeString(m.Text)
 
+	// remove <> from URLs, URLs may also be <url|description>
+	text = urlDetector.ReplaceAllString(text, "${1}://${2}")
+
 	isCmd, text := bot.IsCmd(s.config, text)
 
 	isAction := strings.HasPrefix(text, "/me ")