From d0e43ffd921fcbc8f1b88780e6cfdfdd484fe32c Mon Sep 17 00:00:00 2001
From: Benjamin Liles <benliles@gmail.com>
Date: Mon, 7 Jun 2010 09:31:49 -0500
Subject: [PATCH] Added decorators for testing if a user owns/maintains a
 package and working towards a public management view for packages

---
 src/djangopypi/djangopypi/decorators.py     | 60 +++++++++++++++++++--
 src/djangopypi/djangopypi/views/packages.py |  7 ++-
 2 files changed, 61 insertions(+), 6 deletions(-)

diff --git a/src/djangopypi/djangopypi/decorators.py b/src/djangopypi/djangopypi/decorators.py
index 0b1e2c0..f65e646 100644
--- a/src/djangopypi/djangopypi/decorators.py
+++ b/src/djangopypi/djangopypi/decorators.py
@@ -4,7 +4,7 @@ except ImportError:
     from django.utils.functional import update_wrapper, wraps
 
 from django.conf import settings
-from django.contrib.auth import login
+from django.contrib.auth import login, REDIRECT_FIELD_NAME
 from django.utils.decorators import available_attrs
 
 from djangopypi.http import HttpResponseUnauthorized, login_basic_auth
@@ -12,10 +12,8 @@ from djangopypi.http import HttpResponseUnauthorized, login_basic_auth
 
 
 def basic_auth(view_func):
-    """
-    Decorator for views that need to handle basic authentication such as 
-    distutils views.
-    """
+    """ Decorator for views that need to handle basic authentication such as 
+    distutils views. """
     
     def _wrapped_view(request, *args, **kwargs):
         if request.user.is_authenticated():
@@ -31,3 +29,55 @@ def basic_auth(view_func):
                                          "password.")
         return view_func(request, *args, **kwargs)
     return wraps(view_func, assigned=available_attrs(view_func))(_wrapped_view)
+
+try:
+    from functools import update_wrapper, wraps
+except ImportError:
+    from django.utils.functional import update_wrapper, wraps  # Python 2.4 fallback.
+
+from django.contrib.auth import REDIRECT_FIELD_NAME
+from django.http import HttpResponseRedirect
+from django.utils.decorators import available_attrs
+from django.utils.http import urlquote
+
+
+def user_owns_package(login_url=None, redirect_field_name=REDIRECT_FIELD_NAME):
+    """
+    Decorator for views that checks whether the user owns the currently requested
+    package.
+    """
+    if not login_url:
+        from django.conf import settings
+        login_url = settings.LOGIN_URL
+    
+    def decorator(view_func):
+        def _wrapped_view(request, package, *args, **kwargs):
+            if request.user.packages_owned.filter(name=package).count() > 0:
+                return view_func(request, package=package, *args, **kwargs)
+            
+            path = urlquote(request.get_full_path())
+            tup = login_url, redirect_field_name, path
+            return HttpResponseRedirect('%s?%s=%s' % tup)
+        return wraps(view_func, assigned=available_attrs(view_func))(_wrapped_view)
+    return decorator
+
+def user_maintains_package(login_url=None, redirect_field_name=REDIRECT_FIELD_NAME):
+    """
+    Decorator for views that checks whether the user maintains (or owns) the 
+    currently requested package.
+    """
+    if not login_url:
+        from django.conf import settings
+        login_url = settings.LOGIN_URL
+    
+    def decorator(view_func):
+        def _wrapped_view(request, package, *args, **kwargs):
+            if request.user.packages_owned.filter(name=package).count() > 0 or \
+               request.user.packages_maintained.filter(name=package).count() > 0:
+                return view_func(request, package=package, *args, **kwargs)
+            
+            path = urlquote(request.get_full_path())
+            tup = login_url, redirect_field_name, path
+            return HttpResponseRedirect('%s?%s=%s' % tup)
+        return wraps(view_func, assigned=available_attrs(view_func))(_wrapped_view)
+    return decorator
diff --git a/src/djangopypi/djangopypi/views/packages.py b/src/djangopypi/djangopypi/views/packages.py
index 8f51704..63d7748 100644
--- a/src/djangopypi/djangopypi/views/packages.py
+++ b/src/djangopypi/djangopypi/views/packages.py
@@ -1,6 +1,7 @@
 from django.views.generic import list_detail
 from django.db.models.query import Q
 
+from djangopypi.decorators import user_owns_package, user_maintains_package
 from djangopypi.models import Package
 from djangopypi.forms import SimplePackageSearchForm
 
@@ -31,4 +32,8 @@ def search(request, **kwargs):
         q = form.cleaned_data['query']
         kwargs['queryset'] = Package.objects.filter(Q(name__contains=q) | 
                                                     Q(releases__package_info__contains=q)).distinct()
-    return index(request, **kwargs)
\ No newline at end of file
+    return index(request, **kwargs)
+
+@user_owns_package()
+def manage(request, package, **kwargs):
+    pass