def exercise_image_upload(request):
if request.method != 'POST':
return HttpResponseBadRequest(
"Only POST requests are allowed on this endpoint.")
fobj = request.FILES.values()[0]
name, ext = os.path.splitext(fobj._name)
checksum = get_hash(DjFile(fobj))
file_object = File(
preset_id=format_presets.EXERCISE_IMAGE,
file_on_disk=DjFile(request.FILES.values()[0]),
file_format_id=ext[1:].lower(),
)
file_object.save()
return HttpResponse(
json.dumps({
"success":
True,
"formatted_filename":
exercises.CONTENT_STORAGE_FORMAT.format(str(file_object)),
"file_id":
file_object.pk,
"path":
generate_storage_url(str(file_object)),
}))
def generate_thumbnail(request):
logging.debug("Entering the generate_thumbnail endpoint")
if request.method != 'POST':
return HttpResponseBadRequest(
"Only POST requests are allowed on this endpoint.")
else:
data = json.loads(request.body)
node = ContentNode.objects.get(pk=data["node_id"])
thumbnail_object = generate_thumbnail_from_node(node)
try:
request.user.check_space(thumbnail_object.file_size,
thumbnail_object.checksum)
except Exception as e:
if thumbnail_object:
thumbnail_object.delete()
raise e
return HttpResponse(
json.dumps({
"success":
True,
"file":
JSONRenderer().render(FileSerializer(thumbnail_object).data),
"path":
generate_storage_url(str(thumbnail_object)),
}))
def image_upload(request):
# Used for content nodes
if request.method != 'POST':
return HttpResponseBadRequest("Only POST requests are allowed on this endpoint.")
fobj = request.FILES.values()[0]
name, ext = os.path.splitext(fobj._name) # gets file extension without leading period
checksum = get_hash(DjFile(fobj))
request.user.check_space(fobj._size, checksum)
file_object = File(
contentnode_id=request.META.get('HTTP_NODE'),
original_filename=name,
preset_id=request.META.get('HTTP_PRESET'),
file_on_disk=DjFile(request.FILES.values()[0]),
file_format_id=ext[1:].lower(),
uploaded_by=request.user
)
file_object.save()
return HttpResponse(json.dumps({
"success": True,
"file": JSONRenderer().render(FileSerializer(file_object).data),
"path": generate_storage_url(str(file_object)),
"encoding": get_thumbnail_encoding(str(file_object)),
}))
def _write_user_row(file, writer, domain):
if file.contentnode:
channel = file.contentnode.get_channel()
channel_name = channel.name if channel else _("No Channel")
title = file.contentnode.title
language = file.language.readable_name if file.language else file.contentnode.language.readable_name if file.contentnode.language else ""
license = file.contentnode.license.license_name if file.contentnode.license else "No license"
kind = next((k[1] for k in content_kinds.choices
if k[0] == file.contentnode.kind_id), None)
description = file.contentnode.description
author = file.contentnode.author
license_description = file.contentnode.license_description
copyright_holder = file.contentnode.copyright_holder
else:
title = _("No resource")
channel_name = _("No Channel")
kind = description = author = license = license_description = copyright_holder = ""
language = file.language.readable_name if file.language else ""
file_size = _format_size(file.file_size)
url = "https://{}{}".format(domain, generate_storage_url(str(file)))
writer.writerow([
channel_name, title, kind, file.original_filename, file_size, url,
description, author, language, license, license_description,
copyright_holder
])
def image_upload(request):
if request.method != 'POST':
return HttpResponseBadRequest(
"Only POST requests are allowed on this endpoint.")
fobj = request.FILES.values()[0]
name, ext = os.path.splitext(
fobj._name) # gets file extension without leading period
checksum = get_hash(DjFile(fobj))
request.user.check_space(fobj._size, checksum)
file_object = File(contentnode_id=request.META.get('HTTP_NODE'),
original_filename=name,
preset_id=request.META.get('HTTP_PRESET'),
file_on_disk=DjFile(request.FILES.values()[0]),
file_format_id=ext[1:].lower(),
uploaded_by=request.user)
file_object.save()
return HttpResponse(
json.dumps({
"success":
True,
"file":
JSONRenderer().render(FileSerializer(file_object).data),
"path":
generate_storage_url(str(file_object)),
}))
def get_channel_thumbnail(channel):
# Problems with json.loads, so use ast.literal_eval to get dict
if channel.get("thumbnail_encoding"):
thumbnail_data = ast.literal_eval(channel.get("thumbnail_encoding"))
if thumbnail_data.get("base64"):
return thumbnail_data["base64"]
if channel.get("thumbnail"):
return generate_storage_url(channel.get("thumbnail"))
def image_upload(request):
if request.method == 'POST':
name, ext = os.path.splitext(request.FILES.values()[0]._name) # gets file extension without leading period
file_object = File(contentnode_id=request.META.get('HTTP_NODE'),original_filename=name, preset_id=request.META.get('HTTP_PRESET'), file_on_disk=DjFile(request.FILES.values()[0]), file_format_id=ext[1:])
file_object.save()
return HttpResponse(json.dumps({
"success": True,
"file": JSONRenderer().render(FileSerializer(file_object).data),
"path": generate_storage_url(str(file_object)),
}))
def exercise_image_upload(request):
if request.method == 'POST':
ext = os.path.splitext(request.FILES.values()[0]._name)[1][1:] # gets file extension without leading period
file_object = File(preset_id=format_presets.EXERCISE_IMAGE, file_on_disk=DjFile(request.FILES.values()[0]), file_format_id=ext)
file_object.save()
return HttpResponse(json.dumps({
"success": True,
"formatted_filename": exercises.CONTENT_STORAGE_FORMAT.format(str(file_object)),
"file_id": file_object.pk,
"path": generate_storage_url(str(file_object)),
}))
def retrieve_thumbail_src(self, node):
""" Get either the encoding or the url to use as the <img> src attribute """
try:
if node.thumbnail_encoding:
return json.loads(node.thumbnail_encoding).get('base64')
except ValueError:
pass
thumbnail_file = node.files.filter(preset__thumbnail=True).first()
if thumbnail_file:
return generate_storage_url(str(thumbnail_file))
def thumbnail_upload(request):
if request.method == 'POST':
fobj = request.FILES.values()[0]
formatted_filename = write_file_to_storage(fobj)
return HttpResponse(json.dumps({
"success": True,
"formatted_filename": formatted_filename,
"file": None,
"path": generate_storage_url(formatted_filename),
}))
def test_get_node_thumbnail_file(self):
new_node = ContentNode.objects.create(title="Heyo!", parent=self.channel.main_tree, kind=self.topic)
thumbnail_file = create_thumbnail_from_base64(testdata.base64encoding())
thumbnail_file.contentnode = new_node
# we need to make sure the file is marked as a thumbnail
preset, _created = FormatPreset.objects.get_or_create(id="video_thumbnail")
preset.thumbnail = True
thumbnail_file.preset = preset
thumbnail_file.save()
assert new_node.get_thumbnail() == generate_storage_url(str(thumbnail_file))
def retrieve_thumbail_src(item):
""" Get either the encoding or the url to use as the <img> src attribute """
try:
if item.get("thumbnail_encoding"):
encoding = json.loads(item.get("thumbnail_encoding"))
if encoding:
return encoding.get("base64")
except ValueError:
pass
if (item["thumbnail_checksum"] is not None
and item["thumbnail_extension"] is not None):
return generate_storage_url("{}.{}".format(
item["thumbnail_checksum"], item["thumbnail_extension"]))
return None
def test_get_node_thumbnail_file(self):
new_node = ContentNode.objects.create(title="Heyo!",
parent=self.channel.main_tree,
kind=self.topic)
thumbnail_file = create_thumbnail_from_base64(testdata.base64encoding())
thumbnail_file.contentnode = new_node
# we need to make sure the file is marked as a thumbnail
preset, _created = FormatPreset.objects.get_or_create(id="video_thumbnail")
preset.thumbnail = True
thumbnail_file.preset = preset
thumbnail_file.save()
assert new_node.get_thumbnail() == generate_storage_url(str(thumbnail_file))
def get_thumbnail(node):
# Problems with json.loads, so use ast.literal_eval to get dict
if node.thumbnail_encoding:
thumbnail_data = ast.literal_eval(node.thumbnail_encoding)
if thumbnail_data.get("base64"):
return thumbnail_data["base64"]
thumbnail = node.files.filter(preset__thumbnail=True).first()
if thumbnail:
return generate_storage_url(str(thumbnail))
return "/".join([
settings.STATIC_URL.rstrip("/"), "img",
"{}_placeholder.png".format(node.kind_id)
])
def thumbnail_upload(request):
if request.method == 'POST':
fobj = request.FILES.values()[0]
checksum = get_hash(DjFile(fobj))
request.user.check_space(fobj._size, checksum)
formatted_filename = write_file_to_storage(fobj)
return HttpResponse(
json.dumps({
"success": True,
"formatted_filename": formatted_filename,
"file": None,
"path": generate_storage_url(formatted_filename),
}))
def _write_user_row(file, writer, domain):
filename = '{}.{}'.format(file['checksum'], file['file_format__extension'])
writer.writerow([
file['channel_name'] or _("No Channel"),
file['contentnode__title'] or _("No resource"),
next((k[1] for k in content_kinds.choices if k[0] == file['contentnode__kind_id']), ''),
file['original_filename'],
_format_size(file['file_size'] or 0),
generate_storage_url(filename),
file['contentnode__description'],
file['contentnode__author'],
file['language__readable_name'] or file['contentnode__language__readable_name'],
file['contentnode__license__license_name'],
file['contentnode__license_description'],
file['contentnode__copyright_holder'],
])
def thumbnail_upload(request):
# Used for channels
if request.method != 'POST':
return HttpResponseBadRequest("Only POST requests are allowed on this endpoint.")
fobj = request.FILES.values()[0]
checksum = get_hash(DjFile(fobj))
request.user.check_space(fobj._size, checksum)
formatted_filename = write_file_to_storage(fobj)
return HttpResponse(json.dumps({
"success": True,
"formatted_filename": formatted_filename,
"file": None,
"path": generate_storage_url(formatted_filename),
"encoding": get_thumbnail_encoding(formatted_filename),
}))
def thumbnail_upload(request):
# Used for channels
if request.method != 'POST':
return HttpResponseBadRequest("Only POST requests are allowed on this endpoint.")
fobj = request.FILES.values()[0]
checksum = get_hash(DjFile(fobj))
request.user.check_space(fobj._size, checksum)
formatted_filename = write_file_to_storage(fobj)
return HttpResponse(json.dumps({
"success": True,
"formatted_filename": formatted_filename,
"file": None,
"path": generate_storage_url(formatted_filename),
"encoding": get_thumbnail_encoding(formatted_filename),
}))
def exercise_image_upload(request):
if request.method != 'POST':
return HttpResponseBadRequest("Only POST requests are allowed on this endpoint.")
fobj = request.FILES.values()[0]
assessment_item_id = request.POST.get('assessment_item_id', None)
name, ext = os.path.splitext(fobj._name)
get_hash(DjFile(fobj))
file_object = File(
preset_id=format_presets.EXERCISE_IMAGE,
file_on_disk=DjFile(request.FILES.values()[0]),
file_format_id=ext[1:].lower(),
assessment_item_id=assessment_item_id,
)
file_object.save()
return HttpResponse(json.dumps({
"success": True,
"formatted_filename": exercises.CONTENT_STORAGE_FORMAT.format(str(file_object)),
"file_id": file_object.pk,
"path": generate_storage_url(str(file_object)),
}))
def generate_thumbnail(request, contentnode_id):
logging.debug("Entering the generate_thumbnail endpoint")
if request.method != 'POST':
return HttpResponseBadRequest("Only POST requests are allowed on this endpoint.")
node = ContentNode.objects.get(pk=contentnode_id)
thumbnail_object = generate_thumbnail_from_node(node)
try:
request.user.check_space(thumbnail_object.file_size, thumbnail_object.checksum)
except Exception as e:
if thumbnail_object:
thumbnail_object.delete()
raise e
return HttpResponse(json.dumps({
"success": True,
"file": JSONRenderer().render(FileSerializer(thumbnail_object).data),
"path": generate_storage_url(str(thumbnail_object)),
"encoding": get_thumbnail_encoding(str(thumbnail_object)),
}))
def _write_user_row(file, writer, domain):
if file.contentnode:
channel = file.contentnode.get_channel()
channel_name = channel.name if channel else _("No Channel")
title = file.contentnode.title
language = file.language.readable_name if file.language else file.contentnode.language.readable_name if file.contentnode.language else ""
license = file.contentnode.license.license_name if file.contentnode.license else "No license"
kind = next((k[1] for k in content_kinds.choices if k[0] == file.contentnode.kind_id), None)
description = file.contentnode.description
author = file.contentnode.author
license_description = file.contentnode.license_description
copyright_holder = file.contentnode.copyright_holder
else:
title = _("No resource")
channel_name = _("No Channel")
kind = description = author = license = license_description = copyright_holder = ""
language = file.language.readable_name if file.language else ""
file_size = _format_size(file.file_size)
url = "https://{}{}".format(domain, generate_storage_url(str(file)))
writer.writerow([channel_name, title, kind, file.original_filename, file_size, url,
description, author, language, license, license_description, copyright_holder])
def retrieve_storage_url(self, obj):
return generate_storage_url(str(obj))
def test_get_channel_thumbnail_file(self):
thumbnail_url = '/path/to/thumbnail.png'
self.channel.thumbnail = thumbnail_url
assert self.channel.get_thumbnail() == generate_storage_url(
thumbnail_url)
def test_get_channel_thumbnail_file(self):
thumbnail_url = '/path/to/thumbnail.png'
self.channel.thumbnail = thumbnail_url
assert self.channel.get_thumbnail() == generate_storage_url(thumbnail_url)
def retrieve_storage_url(item):
""" Get the file_on_disk url """
return generate_storage_url("{}.{}".format(item["checksum"],
item["file_format"]))
def get_thumbnail_url(item):
return item.get("thumbnail") and generate_storage_url(item["thumbnail"])
