From 068e52e766bf176adfe648dc9aa266f12c950471 Mon Sep 17 00:00:00 2001
From: tilpner
Date: Sun, 12 Aug 2018 21:14:28 +0200
Subject: Fix exception while encountering the supposed URL ':3', preventing
 the actual URL from bein processed

---
 modules/3-youtube.rkt | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/modules/3-youtube.rkt b/modules/3-youtube.rkt
index 835bee9..0ddd1a1 100644
--- a/modules/3-youtube.rkt
+++ b/modules/3-youtube.rkt
@@ -1,5 +1,7 @@
 #lang racket/base
-(require irc/bot racket/string net/url net/uri-codec json)
+(require irc/bot irc/clean
+         racket/string racket/format racket/function
+         net/url net/uri-codec json)
 (provide (all-defined-out))
 
 (define (youtube-query url)
@@ -8,13 +10,18 @@
                          (uri-encode (url->string url))))
     get-pure-port read-json))
 
+(define (string->maybe-url s)
+  (with-handlers ([url-exception? (const #f)])
+    (string->url s)))
+
 ; catch youtube.com and youtu.be
 (define (extract-youtube-url s)
   (define (is-yt-url u)
-    (and (url-host u)
+    (and u
+         (url-host u)
          (string-contains? (url-host u) "youtu")))
 
-  (let* ([urls (map string->url (string-split s))])
+  (let* ([urls (map (compose1 string->maybe-url clean-control) (string-split s))])
     (findf is-yt-url urls)))
 
 (on (and (command-is 'PRIVMSG)
@@ -23,4 +30,6 @@
       (when url
         (let* ([response (youtube-query url)]
                [title (hash-ref response 'title)])
-          (reply (format "\"~a\"" title))))))
+          (reply (~v title))))))
+
+;(format "\"~a\"" title))))))
-- 
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