import re from django.shortcuts import render_to_response from django.core.exceptions import ValidationError from web.postkey.models import i2phost from web.lib.validation import validate_hostname from web import settings def jumper(request, host): """Actually do jumps.""" try: hostname = validate_hostname(host) except ValidationError, e: return render_to_response('jump-error.html', { 'title': settings.SITE_NAME, 'error': e, }) try: key = i2phost.objects.get(name=hostname, activated=True).b64hash except i2phost.DoesNotExist: return render_to_response('jump-unknown.html', { 'title': settings.SITE_NAME, }) # begin forming url url = 'http://' + hostname # 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 # determine how we should pass i2paddresshelper # http://zzz.i2p/oldnews.html#jump if params.find('?') == -1: suffix = '?' else: suffix = '&' url += suffix + 'i2paddresshelper=' + key else: url += '/?i2paddresshelper=' + key return render_to_response('jump.html', { 'title': settings.SITE_NAME, 'url': url, })