Tunnel back in bash

scripts/tunnel

@@ -1,41 +1,19 @@
-#!/usr/bin/env python
+#!/usr/bin/env bash
+host="$1"
+port="$2"
 
+if [ -z "$http_proxy" ]; then
+    nc "$host" "$port"
+else
+    proxy=$(echo http_proxy | sed 's/^https\?:\/\///' | sed 's/\/$//')
+    port=443 # Most won't want this
+    echo "$proxy" | grep '@'
+    if [ $? == 0 ]; then
+        user=$(echo $proxy | cut -d '@' -f 2)
+        proxy=$(echo $proxy | cut -d '@' -f 1)
+        proxytunnel -p $proxy -P $user -d $host:$port
+    else
+        proxytunnel -p $proxy -d $host:$port
+    fi
+fi
 
-try:
-    import sys
-    import os
-    from subprocess import call
-
-    host, port = sys.argv[1:3]
-    proxy = os.environ.get('HTTP_PROXY')
-
-    if proxy:
-        proxy = proxy.strip('/')
-        if proxy[:7] == 'http://':
-            proxy = proxy[7:]
-        elif proxy[:8] == 'https://':
-            proxy = proxy[8:]
-        s = proxy.split('@')
-        user = None
-        if len(s) == 2:
-            user, proxy = s
-        args = ['proxytunnel', '-p', proxy, '-d', host + ':' + port]
-        if user:
-            args += ['-P', user]
-        call(args)
-
-    else:
-        call(['nc', host, port])
-except KeyboardInterrupt:
-    pass
-
-
-# #!/usr/bin/env bash
-# host="$1"
-# port="$2"
-# 
-# if [ -z $HTTP_PROXY ]; then
-#     nc "$host" "$port"
-# else
-#     proxytunnel -p "$HTTP_PROXY" -d "$host:$port"
-# fi