web/jump/views.py: preserve GET variables when redirecting

web/jump/views.py

@@ -1,3 +1,5 @@
+import re
+
 from django.shortcuts import redirect
 from django.core.exceptions import ValidationError
 from django.http import HttpResponse
@@ -5,10 +7,10 @@ from django.http import HttpResponse
 from web.postkey.models import i2phost
 from web.lib.validation import validate_hostname
 
-def jumper(request, data):
+def jumper(request, host):
 	"""Actually do jumps."""
 	try:
-		hostname = validate_hostname(data)
+		hostname = validate_hostname(host)
 	except ValidationError, e:
 		return redirect('/jump/error/')
 	try:
@@ -16,6 +18,12 @@ def jumper(request, data):
 	except i2phost.DoesNotExist:
 		return redirect('/jump/unknown/')
 	url = 'http://' + hostname + '/?i2paddresshelper=' + key
+	# get params from requst string, e.g. from 'example.i2p/smth/1?a=b&c=d' get 'smth/1?a=b&c=d'
+	pattern = host + r'/(.+)'
+	m = re.search(pattern, request.get_full_path())
+	if m:
+		params = m.group(1)
+		url += '/' + params
 	return redirect(url, permanent=True)
 
 def error(request):