py-i2phosts/pyi2phosts/jump/views.py

import re

from django.shortcuts import render_to_response
from django.shortcuts import redirect
from django.core.exceptions import ValidationError
from django.conf import settings
from django.template import RequestContext

from pyi2phosts.postkey.models import i2phost
from pyi2phosts.lib.validation import validate_hostname

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,
            }, context_instance=RequestContext(request))
    try:
        h = i2phost.objects.get(name=hostname)
    except i2phost.DoesNotExist:
        return render_to_response('jump-unknown.html', {
            'title': settings.SITE_NAME,
            }, context_instance=RequestContext(request))
    if h.activated == True:
        key = h.b64hash
    else:
        return redirect('/search/?q=' + hostname)
    # 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,
        }, context_instance=RequestContext(request))

def index(request):
    return redirect('/')