Add ability to download package from web interface

After adding filename to the database, this is a rather simple request (see
FS#19546). Right now the "randomly" chosen mirror happens to always be
mirrors.kernel.org as it is the only one filed under the 'Any' country which
is what we screen on. Perhaps this logic could be improved in the future but
I don't see these links being all that high traffic anyway.

Signed-off-by: Dan McGee <dan@archlinux.org>

3 files changed, 20 insertions, 1 deletions

diff --git a/packages/views.py b/packages/views.py
index 682dded..6838de0 100644
--- a/packages/views.py
+++ b/packages/views.py
@@ -12,9 +12,11 @@ from django.views.generic import list_detail
 from django.db.models import Q
 
 import datetime
+import string
 
 from main.models import Package, PackageFile
 from main.models import Arch, Repo, Signoff
+from main.models import MirrorUrl
 from main.utils import make_choice
 from packages.models import PackageRelation
 
@@ -316,5 +318,19 @@ def flag(request, name='', repo='', arch=''):
 
     return render_to_response('packages/flag.html', context)
 
-# vim: set ts=4 sw=4 et:
+def download(request, name='', repo='', arch=''):
+    pkg = get_object_or_404(Package,
+            pkgname=name, repo__name__iexact=repo, arch__name=arch)
+    mirrorurl = MirrorUrl.objects.filter(mirror__country='Any',
+            mirror__public=True, mirror__active=True,
+            protocol__protocol__iexact='HTTP')[0]
+    details = {
+        'host': mirrorurl.url,
+        'arch': pkg.arch.name,
+        'repo': pkg.repo.name.lower(),
+        'file': pkg.filename,
+    }
+    url = string.Template('${host}${repo}/os/${arch}/${file}').substitute(details)
+    return HttpResponseRedirect(url)
 
+# vim: set ts=4 sw=4 et:
diff --git a/templates/packages/details.html b/templates/packages/details.html
index c7945b2..4539477 100644
--- a/templates/packages/details.html
+++ b/templates/packages/details.html
@@ -28,6 +28,7 @@
                 'height=350,width=450,location=no,scrollbars=yes,menubars=no,toolbars=no,resizable=no');">(?)</a>
             {% endif %}
             </li>
+            <li><a href="download/" title="Download {{ pkg.pkgname }} from mirror">Download From Mirror</a></li>
         </ul>
 
         {% if user.is_authenticated %}
diff --git a/urls.py b/urls.py
index c52f6ab..8fe7d7d 100644
--- a/urls.py
+++ b/urls.py
@@ -52,6 +52,8 @@ urlpatterns = patterns('',
         'packages.views.flag'),
     (r'^packages/(?P<repo>[A-z0-9\-]+)/(?P<arch>[A-z0-9]+)/(?P<name>[A-z0-9\-+.]+)/unflag/$',
         'packages.views.unflag'),
+    (r'^packages/(?P<repo>[A-z0-9\-]+)/(?P<arch>[A-z0-9]+)/(?P<name>[A-z0-9\-+.]+)/download/$',
+        'packages.views.download'),
 
     (r'^todo/(\d+)/$',              'todolists.views.view'),
     (r'^todo/add/$',                'todolists.views.add'),