Merge branch 'img-playground' of ssh://epsilon.fnp/home/rczajka/workspace/redakcja...

[redakcja.git] / apps / catalogue / views.py

diff --git a/apps/catalogue/views.py b/apps/catalogue/views.py
index 3c58f3f..bc54c3e 100644 (file)
--- a/apps/catalogue/views.py
+++ b/apps/catalogue/views.py
@@ -1,29 +1,31 @@
-from datetime import datetime
+from datetime import datetime, date, timedelta

 import logging
 import os
 from StringIO import StringIO
 import logging
 import os
 from StringIO import StringIO

+from urllib import unquote
+from urlparse import urlsplit, urlunsplit

 
 from django.contrib import auth
 from django.contrib.auth.models import User
 
 from django.contrib import auth
 from django.contrib.auth.models import User

-from django.contrib.auth.decorators import login_required
+from django.contrib.auth.decorators import login_required, permission_required

 from django.core.urlresolvers import reverse
 from django.core.urlresolvers import reverse

-from django.db.models import Count
+from django.db.models import Count, Q

 from django import http
 from django import http

-from django.http import Http404
-from django.shortcuts import get_object_or_404
+from django.http import Http404, HttpResponse, HttpResponseForbidden
+from django.shortcuts import get_object_or_404, render
+from django.utils.encoding import iri_to_uri

 from django.utils.http import urlquote_plus
 from django.utils.translation import ugettext_lazy as _
 from django.views.decorators.http import require_POST
 from django.views.generic.simple import direct_to_template
 
 from django.utils.http import urlquote_plus
 from django.utils.translation import ugettext_lazy as _
 from django.views.decorators.http import require_POST
 from django.views.generic.simple import direct_to_template
 

-import librarian.html
-import librarian.text
-
+from apiclient import NotAuthorizedError

 from catalogue import forms
 from catalogue import helpers
 from catalogue.helpers import active_tab
 from catalogue import forms
 from catalogue import helpers
 from catalogue.helpers import active_tab

-from catalogue.models import Book, Chunk, BookPublishRecord, ChunkPublishRecord
-from catalogue import xml_tools
+from catalogue.models import (Book, Chunk, Image, BookPublishRecord, 
+        ChunkPublishRecord, ImagePublishRecord)
+from catalogue.tasks import publishable_error

 
 #
 # Quick hack around caching problems, TODO: use ETags
 
 #
 # Quick hack around caching problems, TODO: use ETags


@@ -33,59 +35,34 @@ from django.views.decorators.cache import never_cache
 logger = logging.getLogger("fnp.catalogue")
 
 
 logger = logging.getLogger("fnp.catalogue")
 
 

-def slug_filter(qs, value, filter_field, model, model_field='slug', unset=''):
-    if value == unset:
-        return qs.filter(**{filter_field: None})
-    if value is None:
-        return qs
-    try:
-        obj = model._default_manager.get(**{model_field: value})
-    except model.DoesNotExist:
-        return qs.none()
-    else:
-        return qs.filter(**{filter_field: obj})
-
-

 @active_tab('all')
 @never_cache
 @active_tab('all')
 @never_cache

-def document_list(request, filters=None):
-    chunks = Chunk.objects.order_by('book__title', 'book', 'number')
-
-    chunks = slug_filter(chunks, request.GET.get('user', None), 'user', User, 'username')
-    chunks = slug_filter(chunks, request.GET.get('stage', None), 'stage', Chunk.tag_model, 'slug')
+def document_list(request):
+    return render(request, 'catalogue/document_list.html')

 
 

-    chunks_list = helpers.ChunksList(chunks)

 
 

-    return direct_to_template(request, 'catalogue/document_list.html', extra_context={
-        'books': chunks_list,
-        'last_books': sorted(request.session.get("wiki_last_books", {}).items(),
-                        key=lambda x: x[1]['time'], reverse=True),
-        'stages': Chunk.tag_model.objects.all(),
-        'users': User.objects.annotate(count=Count('chunk')).order_by('-count', 'last_name', 'first_name'),
-    })
+@active_tab('images')
+@never_cache
+def image_list(request, user=None):
+    return render(request, 'catalogue/image_list.html')

 
 
 @never_cache
 
 
 @never_cache

-def user(request, username=None):
-    if username is None:
-        if request.user.is_authenticated():
-            user = request.user
-        else:
-            raise Http404
-    else:
-        user = get_object_or_404(User, username=username)
+def user(request, username):
+    user = get_object_or_404(User, username=username)
+    return render(request, 'catalogue/user_page.html', {"viewed_user": user})

 
 

-    chunks_list = helpers.ChunksList(Chunk.objects.filter(
-        user=user).order_by('book__title', 'book', 'number'))

 
 

-    return direct_to_template(request, 'catalogue/document_list.html', extra_context={
-        'books': chunks_list,
+@login_required
+@active_tab('my')
+@never_cache
+def my(request):
+    return render(request, 'catalogue/my_page.html', {

         'last_books': sorted(request.session.get("wiki_last_books", {}).items(),
                         key=lambda x: x[1]['time'], reverse=True),
         'last_books': sorted(request.session.get("wiki_last_books", {}).items(),
                         key=lambda x: x[1]['time'], reverse=True),

-        'viewed_user': user,
-        'stages': Chunk.tag_model.objects.all(),
-    })
-my = login_required(active_tab('my')(user))
+
+        "logout_to": '/',
+        })

 
 
 @active_tab('users')
 
 
 @active_tab('users')


@@ -96,12 +73,30 @@ def users(request):
     })
 
 
     })
 
 

+@active_tab('activity')
+def activity(request, isodate=None):
+    today = date.today()
+    try:
+        day = helpers.parse_isodate(isodate)
+    except ValueError:
+        day = today
+
+    if day > today:
+        raise Http404
+    if day != today:
+        next_day = day + timedelta(1)
+    prev_day = day - timedelta(1)
+
+    return render(request, 'catalogue/activity.html', locals())
+
+

 @never_cache
 def logout_then_redirect(request):
     auth.logout(request)
     return http.HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
 
 
 @never_cache
 def logout_then_redirect(request):
     auth.logout(request)
     return http.HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
 
 

+@permission_required('catalogue.add_book')

 @active_tab('create')
 def create_missing(request, slug=None):
     if slug is None:
 @active_tab('create')
 def create_missing(request, slug=None):
     if slug is None:


@@ -116,25 +111,31 @@ def create_missing(request, slug=None):
                 creator = request.user
             else:
                 creator = None
                 creator = request.user
             else:
                 creator = None

-            book = Book.create(creator=creator,
+            book = Book.create(
+                text=form.cleaned_data['text'],
+                creator=creator,

                 slug=form.cleaned_data['slug'],
                 title=form.cleaned_data['title'],
                 slug=form.cleaned_data['slug'],
                 title=form.cleaned_data['title'],

-                text=form.cleaned_data['text'],
+                gallery=form.cleaned_data['gallery'],

             )
 
             )
 

-            return http.HttpResponseRedirect(reverse("wiki_editor", args=[book.slug]))
+            return http.HttpResponseRedirect(reverse("catalogue_book", args=[book.slug]))

     else:
         form = forms.DocumentCreateForm(initial={
                 "slug": slug,
                 "title": slug.replace('-', ' ').title(),
     else:
         form = forms.DocumentCreateForm(initial={
                 "slug": slug,
                 "title": slug.replace('-', ' ').title(),

+                "gallery": slug,

         })
 
     return direct_to_template(request, "catalogue/document_create_missing.html", extra_context={
         "slug": slug,
         "form": form,
         })
 
     return direct_to_template(request, "catalogue/document_create_missing.html", extra_context={
         "slug": slug,
         "form": form,

+
+        "logout_to": '/',

     })
 
 
     })
 
 

+@permission_required('catalogue.add_book')

 @active_tab('upload')
 def upload(request):
     if request.method == "POST":
 @active_tab('upload')
 def upload(request):
     if request.method == "POST":


@@ -174,10 +175,11 @@ def upload(request):
 
             if not error_list:
                 for filename, slug, title in ok_list:
 
             if not error_list:
                 for filename, slug, title in ok_list:

-                    Book.create(creator=creator,
+                    book = Book.create(
+                        text=zip.read(filename).decode('utf-8'),
+                        creator=creator,

                         slug=slug,
                         title=title,
                         slug=slug,
                         title=title,

-                        text=zip.read(filename).decode('utf-8'),

                     )
 
             return direct_to_template(request, "catalogue/document_upload.html", extra_context={
                     )
 
             return direct_to_template(request, "catalogue/document_upload.html", extra_context={


@@ -185,18 +187,25 @@ def upload(request):
                 "ok_list": ok_list,
                 "skipped_list": skipped_list,
                 "error_list": error_list,
                 "ok_list": ok_list,
                 "skipped_list": skipped_list,
                 "error_list": error_list,

+
+                "logout_to": '/',

             })
     else:
         form = forms.DocumentsUploadForm()
 
     return direct_to_template(request, "catalogue/document_upload.html", extra_context={
         "form": form,
             })
     else:
         form = forms.DocumentsUploadForm()
 
     return direct_to_template(request, "catalogue/document_upload.html", extra_context={
         "form": form,

+
+        "logout_to": '/',

     })
 
 
 @never_cache
 def book_xml(request, slug):
     })
 
 
 @never_cache
 def book_xml(request, slug):

-    xml = get_object_or_404(Book, slug=slug).materialize()
+    book = get_object_or_404(Book, slug=slug)
+    if not book.accessible(request):
+        return HttpResponseForbidden("Not authorized.")
+    xml = book.materialize()

 
     response = http.HttpResponse(xml, content_type='application/xml', mimetype='application/wl+xml')
     response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
 
     response = http.HttpResponse(xml, content_type='application/xml', mimetype='application/wl+xml')
     response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug


@@ -205,9 +214,14 @@ def book_xml(request, slug):
 
 @never_cache
 def book_txt(request, slug):
 
 @never_cache
 def book_txt(request, slug):

-    xml = get_object_or_404(Book, slug=slug).materialize()
+    book = get_object_or_404(Book, slug=slug)
+    if not book.accessible(request):
+        return HttpResponseForbidden("Not authorized.")
+    xml = book.materialize()

     output = StringIO()
     # errors?
     output = StringIO()
     # errors?

+
+    import librarian.text

     librarian.text.transform(StringIO(xml), output)
     text = output.getvalue()
     response = http.HttpResponse(text, content_type='text/plain', mimetype='text/plain')
     librarian.text.transform(StringIO(xml), output)
     text = output.getvalue()
     response = http.HttpResponse(text, content_type='text/plain', mimetype='text/plain')


@@ -217,9 +231,14 @@ def book_txt(request, slug):
 
 @never_cache
 def book_html(request, slug):
 
 @never_cache
 def book_html(request, slug):

-    xml = get_object_or_404(Book, slug=slug).materialize()
+    book = get_object_or_404(Book, slug=slug)
+    if not book.accessible(request):
+        return HttpResponseForbidden("Not authorized.")
+    xml = book.materialize()

     output = StringIO()
     # errors?
     output = StringIO()
     # errors?

+
+    import librarian.html

     librarian.html.transform(StringIO(xml), output, parse_dublincore=False,
                              flags=['full-page'])
     html = output.getvalue()
     librarian.html.transform(StringIO(xml), output, parse_dublincore=False,
                              flags=['full-page'])
     html = output.getvalue()


@@ -227,114 +246,138 @@ def book_html(request, slug):
     return response
 
 
     return response
 
 

+@never_cache
+def book_pdf(request, slug):
+    book = get_object_or_404(Book, slug=slug)
+    if not book.accessible(request):
+        return HttpResponseForbidden("Not authorized.")
+
+    from tempfile import NamedTemporaryFile
+    from os import unlink
+    from librarian import pdf
+    from catalogue.ebook_utils import RedakcjaDocProvider, serve_file
+
+    xml = book.materialize()
+    xml_file = NamedTemporaryFile()
+    xml_file.write(xml.encode('utf-8'))
+    xml_file.flush()
+
+    try:
+        pdf_file = NamedTemporaryFile(delete=False)
+        pdf.transform(RedakcjaDocProvider(publishable=True),
+                  file_path=xml_file.name,
+                  output_file=pdf_file,
+                  )
+        return serve_file(pdf_file.name, book.slug + '.pdf', 'application/pdf')
+    finally:
+        unlink(pdf_file.name)
+
+
+@never_cache
+def book_epub(request, slug):
+    book = get_object_or_404(Book, slug=slug)
+    if not book.accessible(request):
+        return HttpResponseForbidden("Not authorized.")
+
+    from StringIO import StringIO
+    from tempfile import NamedTemporaryFile
+    from librarian import epub
+    from catalogue.ebook_utils import RedakcjaDocProvider
+
+    xml = book.materialize()
+    xml_file = NamedTemporaryFile()
+    xml_file.write(xml.encode('utf-8'))
+    xml_file.flush()
+
+    epub_file = StringIO()
+    epub.transform(RedakcjaDocProvider(publishable=True),
+            file_path=xml_file.name,
+            output_file=epub_file)
+    response = HttpResponse(mimetype='application/epub+zip')
+    response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.epub'
+    response.write(epub_file.getvalue())
+    return response
+
+

 @never_cache
 def revision(request, slug, chunk=None):
     try:
         doc = Chunk.get(slug, chunk)
     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
         raise Http404
 @never_cache
 def revision(request, slug, chunk=None):
     try:
         doc = Chunk.get(slug, chunk)
     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
         raise Http404

+    if not doc.book.accessible(request):
+        return HttpResponseForbidden("Not authorized.")

     return http.HttpResponse(str(doc.revision()))
 
 
 def book(request, slug):
     book = get_object_or_404(Book, slug=slug)
     return http.HttpResponse(str(doc.revision()))
 
 
 def book(request, slug):
     book = get_object_or_404(Book, slug=slug)

-
-    # TODO: most of this should go somewhere else
-
-    # do we need some automation?
-    first_master = None
-    chunks = []
-    need_fixing = False
-    choose_master = False
-
-    length = book.chunk_set.count()
-    for i, chunk in enumerate(book):
-        chunk_dict = {
-            "chunk": chunk,
-            "fix": [],
-            "grade": ""
-            }
-        graded = xml_tools.GradedText(chunk.materialize())
-        if graded.is_wl():
-            master = graded.master()
-            if first_master is None:
-                first_master = master
-            elif master != first_master:
-                chunk_dict['fix'].append('bad-master')
-
-            if i > 0 and not graded.has_trim_begin():
-                chunk_dict['fix'].append('trim-begin')
-            if i < length - 1 and not graded.has_trim_end():
-                chunk_dict['fix'].append('trim-end')
-
-            if chunk_dict['fix']:
-                chunk_dict['grade'] = 'wl-fix'
-            else:
-                chunk_dict['grade'] = 'wl'
-
-        elif graded.is_broken_wl():
-            chunk_dict['grade'] = 'wl-broken'
-        elif graded.is_xml():
-            chunk_dict['grade'] = 'xml'
+    if not book.accessible(request):
+        return HttpResponseForbidden("Not authorized.")
+
+    if request.user.has_perm('catalogue.change_book'):
+        if request.method == "POST":
+            form = forms.BookForm(request.POST, instance=book)
+            if form.is_valid():
+                form.save()
+                return http.HttpResponseRedirect(book.get_absolute_url())

         else:
         else:

-            chunk_dict['grade'] = 'plain'
-            chunk_dict['fix'].append('wl')
-            choose_master = True
+            form = forms.BookForm(instance=book)
+            editable = True
+    else:
+        form = forms.ReadonlyBookForm(instance=book)
+        editable = False

 
 

-        if chunk_dict['fix']:
-            need_fixing = True
-        chunks.append(chunk_dict)
+    publish_error = publishable_error(book)
+    publishable = publish_error is None

 
 

-    if first_master or not need_fixing:
-        choose_master = False
+    return direct_to_template(request, "catalogue/book_detail.html", extra_context={
+        "book": book,
+        "publishable": publishable,
+        "publishable_error": publish_error,
+        "form": form,
+        "editable": editable,
+    })

 
 

-    if request.method == "POST":
-        form = forms.ChooseMasterForm(request.POST)
-        if not choose_master or form.is_valid():
-            if choose_master:
-                first_master = form.cleaned_data['master']
-
-            # do the actual fixing
-            for c in chunks:
-                if not c['fix']:
-                    continue

 
 

-                text = c['chunk'].materialize()
-                for fix in c['fix']:
-                    if fix == 'bad-master':
-                        text = xml_tools.change_master(text, first_master)
-                    elif fix == 'trim-begin':
-                        text = xml_tools.add_trim_begin(text)
-                    elif fix == 'trim-end':
-                        text = xml_tools.add_trim_end(text)
-                    elif fix == 'wl':
-                        text = xml_tools.basic_structure(text, first_master)
-                author = request.user if request.user.is_authenticated() else None
-                description = "auto-fix: " + ", ".join(c['fix'])
-                c['chunk'].commit(text=text, author=author, 
-                    description=description)
-
-            return http.HttpResponseRedirect(book.get_absolute_url())
-    elif choose_master:
-        form = forms.ChooseMasterForm()
+def image(request, slug):
+    image = get_object_or_404(Image, slug=slug)
+    if not image.accessible(request):
+        return HttpResponseForbidden("Not authorized.")
+
+    if request.user.has_perm('catalogue.change_image'):
+        if request.method == "POST":
+            form = forms.ImageForm(request.POST, instance=image)
+            if form.is_valid():
+                form.save()
+                return http.HttpResponseRedirect(image.get_absolute_url())
+        else:
+            form = forms.ImageForm(instance=image)
+            editable = True

     else:
     else:

-        form = None
+        form = forms.ReadonlyImageForm(instance=image)
+        editable = False

 
 

-    return direct_to_template(request, "catalogue/book_detail.html", extra_context={
-        "book": book,
-        "chunks": chunks,
-        "need_fixing": need_fixing,
-        "choose_master": choose_master,
-        "first_master": first_master,
+    publish_error = publishable_error(image)
+    publishable = publish_error is None
+
+    return direct_to_template(request, "catalogue/image_detail.html", extra_context={
+        "object": image,
+        "publishable": publishable,
+        "publishable_error": publish_error,

         "form": form,
         "form": form,

+        "editable": editable,

     })
 
 
     })
 
 

+@permission_required('catalogue.add_chunk')

 def chunk_add(request, slug, chunk):
     try:
         doc = Chunk.get(slug, chunk)
     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
         raise Http404
 def chunk_add(request, slug, chunk):
     try:
         doc = Chunk.get(slug, chunk)
     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
         raise Http404

+    if not doc.book.accessible(request):
+        return HttpResponseForbidden("Not authorized.")

 
     if request.method == "POST":
         form = forms.ChunkAddForm(request.POST, instance=doc)
 
     if request.method == "POST":
         form = forms.ChunkAddForm(request.POST, instance=doc)


@@ -345,14 +388,17 @@ def chunk_add(request, slug, chunk):
                 creator = None
             doc.split(creator=creator,
                 slug=form.cleaned_data['slug'],
                 creator = None
             doc.split(creator=creator,
                 slug=form.cleaned_data['slug'],

-                comment=form.cleaned_data['comment'],
+                title=form.cleaned_data['title'],
+                gallery_start=form.cleaned_data['gallery_start'],
+                user=form.cleaned_data['user'],
+                stage=form.cleaned_data['stage']

             )
 
             return http.HttpResponseRedirect(doc.book.get_absolute_url())
     else:
         form = forms.ChunkAddForm(initial={
                 "slug": str(doc.number + 1),
             )
 
             return http.HttpResponseRedirect(doc.book.get_absolute_url())
     else:
         form = forms.ChunkAddForm(initial={
                 "slug": str(doc.number + 1),

-                "comment": "cz. %d" % (doc.number + 1, ),
+                "title": "cz. %d" % (doc.number + 1, ),

         })
 
     return direct_to_template(request, "catalogue/chunk_add.html", extra_context={
         })
 
     return direct_to_template(request, "catalogue/chunk_add.html", extra_context={


@@ -366,47 +412,56 @@ def chunk_edit(request, slug, chunk):
         doc = Chunk.get(slug, chunk)
     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
         raise Http404
         doc = Chunk.get(slug, chunk)
     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
         raise Http404

+    if not doc.book.accessible(request):
+        return HttpResponseForbidden("Not authorized.")
+

     if request.method == "POST":
         form = forms.ChunkForm(request.POST, instance=doc)
         if form.is_valid():
             form.save()
     if request.method == "POST":
         form = forms.ChunkForm(request.POST, instance=doc)
         if form.is_valid():
             form.save()

-            return http.HttpResponseRedirect(doc.book.get_absolute_url())
+            go_next = request.GET.get('next', None)
+            if go_next:
+                go_next = urlquote_plus(unquote(iri_to_uri(go_next)), safe='/?=&')
+            else:
+                go_next = doc.book.get_absolute_url()
+            return http.HttpResponseRedirect(go_next)

     else:
         form = forms.ChunkForm(instance=doc)
     else:
         form = forms.ChunkForm(instance=doc)

+
+    referer = request.META.get('HTTP_REFERER')
+    if referer:
+        parts = urlsplit(referer)
+        parts = ['', ''] + list(parts[2:])
+        go_next = urlquote_plus(urlunsplit(parts))
+    else:
+        go_next = ''
+

     return direct_to_template(request, "catalogue/chunk_edit.html", extra_context={
         "chunk": doc,
         "form": form,
     return direct_to_template(request, "catalogue/chunk_edit.html", extra_context={
         "chunk": doc,
         "form": form,

+        "go_next": go_next,

     })
 
 
     })
 
 

+@permission_required('catalogue.change_book')

 def book_append(request, slug):
     book = get_object_or_404(Book, slug=slug)
 def book_append(request, slug):
     book = get_object_or_404(Book, slug=slug)

+    if not book.accessible(request):
+        return HttpResponseForbidden("Not authorized.")
+

     if request.method == "POST":
     if request.method == "POST":

-        form = forms.BookAppendForm(request.POST)
+        form = forms.BookAppendForm(book, request.POST)

         if form.is_valid():
             append_to = form.cleaned_data['append_to']
             append_to.append(book)
             return http.HttpResponseRedirect(append_to.get_absolute_url())
     else:
         if form.is_valid():
             append_to = form.cleaned_data['append_to']
             append_to.append(book)
             return http.HttpResponseRedirect(append_to.get_absolute_url())
     else:

-        form = forms.BookAppendForm()
+        form = forms.BookAppendForm(book)

     return direct_to_template(request, "catalogue/book_append_to.html", extra_context={
         "book": book,
         "form": form,
     return direct_to_template(request, "catalogue/book_append_to.html", extra_context={
         "book": book,
         "form": form,

-    })
-

 
 

-def book_edit(request, slug):
-    book = get_object_or_404(Book, slug=slug)
-    if request.method == "POST":
-        form = forms.BookForm(request.POST, instance=book)
-        if form.is_valid():
-            form.save()
-            return http.HttpResponseRedirect(book.get_absolute_url())
-    else:
-        form = forms.BookForm(instance=book)
-    return direct_to_template(request, "catalogue/book_edit.html", extra_context={
-        "book": book,
-        "form": form,
+        "logout_to": '/',

     })
 
 
     })
 
 


@@ -414,9 +469,31 @@ def book_edit(request, slug):
 @login_required
 def publish(request, slug):
     book = get_object_or_404(Book, slug=slug)
 @login_required
 def publish(request, slug):
     book = get_object_or_404(Book, slug=slug)

+    if not book.accessible(request):
+        return HttpResponseForbidden("Not authorized.")
+

     try:
         book.publish(request.user)
     try:
         book.publish(request.user)

+    except NotAuthorizedError:
+        return http.HttpResponseRedirect(reverse('apiclient_oauth'))

     except BaseException, e:
         return http.HttpResponse(e)
     else:
         return http.HttpResponseRedirect(book.get_absolute_url())
     except BaseException, e:
         return http.HttpResponse(e)
     else:
         return http.HttpResponseRedirect(book.get_absolute_url())

+
+
+@require_POST
+@login_required
+def publish_image(request, slug):
+    image = get_object_or_404(Image, slug=slug)
+    if not image.accessible(request):
+        return HttpResponseForbidden("Not authorized.")
+
+    try:
+        image.publish(request.user)
+    except NotAuthorizedError:
+        return http.HttpResponseRedirect(reverse('apiclient_oauth'))
+    except BaseException, e:
+        return http.HttpResponse(e)
+    else:
+        return http.HttpResponseRedirect(image.get_absolute_url())