def slide_create(request):
"""
If the request is a GET, renders a form to create a new slide from a slide
bundle. If the request is a POST, it should contain a bundle that is used to
create a new slide. The slide's metadata is populated from the bundle's
manifest file.
"""
if request.method == 'POST':
f = CreateSlideForm(request.POST, request.FILES)
if f.is_valid():
tf = tarfile.open(fileobj=request.FILES['bundle'])
s = Slide(user=request.user,
title='Uploaded %s' % (tf.__hash__()))
s.populate_from_bundle(request.FILES['bundle'], tf)
return redirect('orwell-slide-index')
else:
f = CreateSlideForm()
return render_to_response('orwell/create-slide.html', {'form':f},
context_instance=RequestContext(request))
def pdf_slide_create(request):
"""
If the request is a GET, renders a form to create a new slide from a PDF. If
the request is a POST, uses the information in the POST data to create a new
slide from a PDF included in that data.
"""
if request.method == 'POST':
f = CreatePDFSlideForm(request.POST, request.FILES)
if f.is_valid():
def in_cur_dir(path):
return os.path.join(os.path.dirname(__file__),path)
fpath = handle_uploaded_file(request.FILES['pdf'])
convert_pdf(fpath, in_cur_dir("PDFslide/pdf.png"), (1920,1080))
convert_pdf(fpath, in_cur_dir("PDFslide/_thumb.png"), (200, 113))
t = RenderTemplate(open(in_cur_dir('PDFslide/manifest.js.tmp')).read())
manifest = open(in_cur_dir('PDFslide/manifest.js'), 'w+')
manifest.write(t.render(Context({'title':f.cleaned_data['title'],
'duration':f.cleaned_data['duration'],
'priority':f.cleaned_data['priority']})))
manifest.close()
bundle_loc = in_cur_dir('bundle.tar.gz')
PDFslide_loc = in_cur_dir('PDFslide')
os.chdir(PDFslide_loc)
os.system('tar -zcf %s *' % bundle_loc)
s = Slide(user=request.user,
title=f.cleaned_data['title'],
duration=f.cleaned_data['duration'],
priority=f.cleaned_data['priority'])
s.populate_from_bundle(File(open(bundle_loc)), tarfile.open(bundle_loc))
# remove these so as not to cause problems for the next pdf slide
os.remove(in_cur_dir("PDFslide/pdf.png"))
os.remove(in_cur_dir("PDFslide/_thumb.png"))
os.remove(in_cur_dir("PDFslide/manifest.js"))
os.remove(bundle_loc)
os.remove(fpath)
return redirect('orwell-slide-index')
else:
f = CreatePDFSlideForm()
return render_to_response('orwell/create-pdf-slide.html', {'form':f},
context_instance=RequestContext(request))
def cli_manage_slide(request):
"""
Accepts POSTS from authenticated clients, and allows those clients to either
create or modify existing slides.
"""
if request.method == 'POST':
f = CLICCreateSlideForm(request.POST, request.FILES)
if f.is_valid():
tf = tarfile.open(fileobj=request.FILES['bundle'])
id = f.cleaned_data['id']
create = f.cleaned_data['mode'] == 'create'
if create and not id:
s = Slide(user=request.user,
title='cli uploaded %s' % (tf.__hash__()))
elif not create and id:
s = Slide.objects.get(id=id)
if not s.allowed(request.user):
return HttpResponse('Not allowed to modify slide')
else:
return HttpResponse('invalid: %s' % str(f.data))
s.populate_from_bundle(request.FILES['bundle'], tf)
return HttpResponse('Slide %s %sd'
% (s.id, f.cleaned_data['mode']))
return HttpResponseNotAllowed(['POST'])
