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 map_files_to_assessment_item(user, assessment_item, data):
"""
Generate files referenced in given assesment item (a.k.a. question).
"""
if settings.DEBUG:
# assert that our parameters match expected values
assert isinstance(user, User)
assert isinstance(assessment_item, AssessmentItem)
assert isinstance(data, list)
# filter out file that are empty
valid_data = filter_out_nones(data)
for file_data in valid_data:
filename = file_data["filename"]
checksum, ext = filename.split(".")
file_path = generate_object_storage_name(checksum, filename)
storage = default_storage
if not storage.exists(file_path):
raise IOError('{} not found'.format(file_path))
resource_obj = File(
checksum=checksum,
assessment_item=assessment_item,
file_format_id=ext,
original_filename=file_data.get('original_filename') or 'file',
source_url=file_data.get('source_url'),
file_size=file_data['size'],
preset_id=file_data[
"preset"], # assessment_item-files always have a preset
uploaded_by=user,
)
resource_obj.file_on_disk.name = file_path
resource_obj.save()
def map_files_to_slideshow_slide_item(user, node, slides, files):
"""
Generate files referenced in given slideshow slide
"""
for file_data in files:
filename = file_data["filename"]
checksum, ext = filename.split(".")
matching_slide = next(
(slide
for slide in slides if slide.metadata["checksum"] == checksum),
None)
if not matching_slide:
# TODO(Jacob) Determine proper error type... raise it.
print("NO MATCH")
file_path = generate_object_storage_name(checksum, filename)
storage = default_storage
if not storage.exists(file_path):
raise IOError('{} not found'.format(file_path))
file_obj = File(slideshow_slide=matching_slide,
checksum=checksum,
file_format_id=ext,
original_filename=file_data.get("original_filename")
or "file",
source_url=file_data.get("source_url"),
file_size=file_data["size"],
preset_id=file_data["preset"],
uploaded_by=user)
file_obj.file_on_disk.name = file_path
file_obj.save()
def create_file(display_name, preset_id, ext, user=None):
with tempfile.NamedTemporaryFile(suffix=".{}".format(ext),
mode='w+t',
delete=False) as f:
f.write(":)")
f.flush()
size = f.tell()
filename = write_file_to_storage(f, name=f.name)
checksum, _ext = os.path.splitext(filename)
f.seek(0)
file_object = File(
file_size=size,
file_on_disk=DjFile(f),
checksum=checksum,
file_format_id=ext,
original_filename=display_name,
preset_id=preset_id,
uploaded_by=user,
)
file_object.save()
f.close()
os.unlink(f.name)
return file_object
def create_file(display_name, preset_id, ext, user=None):
with tempfile.NamedTemporaryFile(suffix=".{}".format(ext), mode='w+t', delete=False) as f:
f.write(":)")
f.flush()
size = f.tell()
filename = write_file_to_storage(f, name=f.name)
checksum, _ext = os.path.splitext(filename)
f.seek(0)
file_object = File(
file_size=size,
file_on_disk=DjFile(f),
checksum=checksum,
file_format_id=ext,
original_filename=display_name,
preset_id=preset_id,
uploaded_by=user,
language_id="mul" if FormatPreset.objects.filter(id=preset_id, multi_language=True).exists() else None,
)
file_object.save()
f.close()
os.unlink(f.name)
return file_object
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 map_files_to_assessment_item(user, assessment_item, data):
"""
Generate files referenced in given assesment item (a.k.a. question).
"""
if settings.DEBUG:
# assert that our parameters match expected values
assert isinstance(user, User)
assert isinstance(assessment_item, AssessmentItem)
assert isinstance(data, list)
# filter out file that are empty
valid_data = filter_out_nones(data)
for file_data in valid_data:
filename = file_data["filename"]
checksum, ext = filename.split(".")
file_path = generate_object_storage_name(checksum, filename)
storage = default_storage
if not storage.exists(file_path):
raise IOError('{} not found'.format(file_path))
resource_obj = File(
checksum=checksum,
assessment_item=assessment_item,
file_format_id=ext,
original_filename=file_data.get('original_filename') or 'file',
source_url=file_data.get('source_url'),
file_size=file_data['size'],
preset_id=file_data["preset"], # assessment_item-files always have a preset
uploaded_by=user,
)
resource_obj.file_on_disk.name = file_path
resource_obj.save()
def map_files_to_node(node, data):
""" Generate files that reference the content node """
for file_data in data:
file_hash = file_data['filename'].split(".")
# Determine a preset if none is given
kind_preset = None
if file_data['preset'] is None:
kind_preset = FormatPreset.objects.filter(kind=node.kind, allowed_formats__extension__contains=file_hash[1], display=True).first()
else:
kind_preset = FormatPreset.objects.get(id=file_data['preset'])
language = None
if file_data.get('language'):
language = Language.objects.get(pk=file_data['language'])
file_path=generate_file_on_disk_name(file_hash[0], file_data['filename'])
if not os.path.isfile(file_path):
raise IOError('{} not found'.format(file_path))
file_obj = File(
checksum=file_hash[0],
contentnode=node,
file_format_id=file_hash[1],
original_filename=file_data.get('original_filename') or 'file',
source_url=file_data.get('source_url'),
file_size = file_data['size'],
file_on_disk=DjFile(open(file_path, 'rb')),
preset=kind_preset,
language=language,
)
file_obj.save()
def file_upload(request):
if request.method != 'POST':
return HttpResponseBadRequest("Only POST requests are allowed on this endpoint.")
# Implement logic for switching out files without saving it yet
filename, ext = os.path.splitext(request.FILES.values()[0]._name)
size = request.FILES.values()[0]._size
contentfile = DjFile(request.FILES.values()[0])
checksum = get_hash(contentfile)
request.user.check_space(size, checksum)
file_object = File(
file_size=size,
file_on_disk=contentfile,
checksum=checksum,
file_format_id=ext[1:].lower(),
original_filename=request.FILES.values()[0]._name,
preset_id=request.META.get('HTTP_PRESET'),
language_id=request.META.get('HTTP_LANGUAGE'),
uploaded_by=request.user,
)
file_object.save()
return HttpResponse(json.dumps({
"success": True,
"filename": str(file_object),
"file": JSONRenderer().render(FileSerializer(file_object).data)
}))
def file_upload(request):
if request.method == 'POST':
# Implement logic for switching out files without saving it yet
filename, ext = os.path.splitext(request.FILES.values()[0]._name)
size = request.FILES.values()[0]._size
contentfile = DjFile(request.FILES.values()[0])
checksum = get_hash(contentfile)
request.user.check_space(size, checksum)
file_object = File(
file_size=size,
file_on_disk=contentfile,
checksum=checksum,
file_format_id=ext[1:].lower(),
original_filename=request.FILES.values()[0]._name,
preset_id=request.META.get('HTTP_PRESET'),
language_id=request.META.get('HTTP_LANGUAGE'),
uploaded_by=request.user,
)
file_object.save()
return HttpResponse(
json.dumps({
"success":
True,
"filename":
str(file_object),
"file":
JSONRenderer().render(FileSerializer(file_object).data)
}))
def create_file(display_name, preset_id, ext, user=None):
with tempfile.NamedTemporaryFile(suffix=".{}".format(ext),
mode="wb+",
delete=False) as f:
f.write(b":)")
f.flush()
size = f.tell()
filename = write_file_to_storage(f, name=f.name)
checksum, _ext = os.path.splitext(filename)
f.seek(0)
file_object = File(
file_size=size,
file_on_disk=DjFile(f),
checksum=checksum,
file_format_id=ext,
original_filename=display_name,
preset_id=preset_id,
uploaded_by=user,
language_id="mul" if FormatPreset.objects.filter(
id=preset_id, multi_language=True).exists() else None,
)
file_object.save()
f.close()
os.unlink(f.name)
return file_object
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 map_files_to_node(user, node, data):
"""
Generate files that reference the content node.
"""
if settings.DEBUG:
# assert that our parameters match expected values
assert isinstance(user, User)
assert isinstance(node, ContentNode)
assert isinstance(data, list)
# filter out file that are empty
valid_data = filter_out_nones(data)
for file_data in valid_data:
filename = file_data["filename"]
checksum, ext1 = os.path.splitext(filename)
ext = ext1.lstrip(".")
# Determine a preset if none is given
kind_preset = FormatPreset.get_preset(file_data["preset"]) or FormatPreset.guess_format_preset(filename)
file_path = generate_object_storage_name(checksum, filename)
storage = default_storage
if not storage.exists(file_path):
raise IOError('{} not found'.format(file_path))
try:
if file_data.get('language'):
# TODO: Remove DB call per file?
file_data['language'] = Language.objects.get(pk=file_data['language'])
except ObjectDoesNotExist:
invalid_lang = file_data.get('language')
logging.warning("file_data with language {} does not exist.".format(invalid_lang))
return ValidationError("file_data given was invalid; expected string, got {}".format(invalid_lang))
resource_obj = File(
checksum=checksum,
contentnode=node,
file_format_id=ext,
original_filename=file_data.get('original_filename') or 'file',
source_url=file_data.get('source_url'),
file_size=file_data['size'],
preset=kind_preset,
language_id=file_data.get('language'),
uploaded_by=user,
)
resource_obj.file_on_disk.name = file_path
resource_obj.save()
# Handle thumbnail
if resource_obj.preset and resource_obj.preset.thumbnail:
node.thumbnail_encoding = json.dumps({
'base64': get_thumbnail_encoding(str(resource_obj)),
'points': [],
'zoom': 0
})
node.save()
def map_files_to_node(user, node, data):
"""
Generate files that reference the content node.
"""
if settings.DEBUG:
# assert that our parameters match expected values
assert isinstance(user, User)
assert isinstance(node, ContentNode)
assert isinstance(data, list)
# filter out file that are empty
valid_data = filter_out_nones(data)
for file_data in valid_data:
filename = file_data["filename"]
checksum, ext1 = os.path.splitext(filename)
ext = ext1.lstrip(".")
# Determine a preset if none is given
kind_preset = FormatPreset.get_preset(file_data["preset"]) or FormatPreset.guess_format_preset(filename)
file_path = generate_object_storage_name(checksum, filename)
storage = default_storage
if not storage.exists(file_path):
raise IOError('{} not found'.format(file_path))
try:
if file_data.get('language'):
# TODO: Remove DB call per file?
file_data['language'] = Language.objects.get(pk=file_data['language'])
except ObjectDoesNotExist:
invalid_lang = file_data.get('language')
logging.warning("file_data with language {} does not exist.".format(invalid_lang))
return ValidationError("file_data given was invalid; expected string, got {}".format(invalid_lang))
resource_obj = File(
checksum=checksum,
contentnode=node,
file_format_id=ext,
original_filename=file_data.get('original_filename') or 'file',
source_url=file_data.get('source_url'),
file_size=file_data['size'],
preset=kind_preset,
language_id=file_data.get('language'),
uploaded_by=user,
)
resource_obj.file_on_disk.name = file_path
resource_obj.save()
# Handle thumbnail
if resource_obj.preset and resource_obj.preset.thumbnail:
node.thumbnail_encoding = json.dumps({
'base64': get_thumbnail_encoding(str(resource_obj)),
'points': [],
'zoom': 0
})
node.save()
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 thumbnail_upload(request):
if request.method == 'POST':
filename = request.FILES.values()[0]._name
ext = os.path.splitext(filename)[1].split(".")[-1] # gets file extension without leading period
file_object = File(file_on_disk=request.FILES.values()[0], file_format_id=ext, preset_id=format_presets.CHANNEL_THUMBNAIL)
file_object.save()
return HttpResponse(json.dumps({
"success": True,
"filename": "{0}.{ext}".format(file_object.checksum, ext=ext),
}))
def file_create(request):
if request.method == 'POST':
original_filename, ext = os.path.splitext(
request.FILES.values()[0]._name)
size = request.FILES.values()[0]._size
presets = FormatPreset.objects.filter(
allowed_formats__extension__contains=ext[1:].lower())
kind = presets.first().kind
preferences = json.loads(request.user.preferences)
author = preferences.get('author') or ""
license = License.objects.filter(
license_name=preferences.get('license')).first(
) # Use filter/first in case preference hasn't been set
license_id = license.pk if license else settings.DEFAULT_LICENSE
new_node = ContentNode(
title=original_filename,
kind=kind,
license_id=license_id,
author=author,
copyright_holder=preferences.get('copyright_holder'))
if license.license_name == licenses.SPECIAL_PERMISSIONS:
new_node.license_description = preferences.get(
'license_description')
new_node.save()
file_object = File(file_on_disk=DjFile(request.FILES.values()[0]),
file_format_id=ext[1:].lower(),
original_filename=request.FILES.values()[0]._name,
contentnode=new_node,
file_size=size)
file_object.save()
if kind.pk == content_kinds.VIDEO:
file_object.preset_id = guess_video_preset_by_resolution(
str(file_object.file_on_disk))
elif presets.filter(supplementary=False).count() == 1:
file_object.preset = presets.filter(supplementary=False).first()
file_object.save()
try:
if preferences.get('auto_derive_video_thumbnail') and new_node.kind_id == content_kinds.VIDEO \
or preferences.get('auto_derive_audio_thumbnail') and new_node.kind_id == content_kinds.AUDIO \
or preferences.get('auto_derive_html5_thumbnail') and new_node.kind_id == content_kinds.HTML5 \
or preferences.get('auto_derive_document_thumbnail') and new_node.kind_id == content_kinds.DOCUMENT:
generate_thumbnail_from_node(new_node, set_node=True)
except Exception:
pass
return HttpResponse(
json.dumps({
"success":
True,
"node":
JSONRenderer().render(
ContentNodeEditSerializer(new_node).data)
}))
def exercise_image_upload(request):
if request.method == 'POST':
node = ContentNode.objects.get(id=request.META.get('HTTP_NODE'))
ext = os.path.splitext(request.FILES.values()[0]._name)[1].split(".")[-1] # gets file extension without leading period
file_object = File(file_on_disk=request.FILES.values()[0], file_format=FileFormat.objects.get(extension=ext), contentnode=node)
file_object.save()
return HttpResponse(json.dumps({
"success": True,
"filename": file_object.file_on_disk.url,
}))
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 map_files_to_node(user, node, data):
""" Generate files that reference the content node """
# filter for file data that's not empty;
valid_data = (d for d in data if d)
for file_data in valid_data:
file_name_parts = file_data['filename'].split(".")
# Determine a preset if none is given
kind_preset = None
if file_data['preset'] is None:
kind_preset = FormatPreset.objects.filter(
kind=node.kind,
allowed_formats__extension__contains=file_name_parts[1],
display=True).first()
else:
kind_preset = FormatPreset.objects.get(id=file_data['preset'])
file_path = generate_object_storage_name(file_name_parts[0],
file_data['filename'])
storage = default_storage
if not storage.exists(file_path):
return IOError('{} not found'.format(file_path))
try:
if file_data.get('language'):
# TODO: Remove DB call per file?
file_data['language'] = Language.objects.get(
pk=file_data['language'])
except ObjectDoesNotExist as e:
invalid_lang = file_data.get('language')
logging.warning(
"file_data with language {} does not exist.".format(
invalid_lang))
return ValidationError(
"file_data given was invalid; expected string, got {}".format(
invalid_lang))
resource_obj = File(
checksum=file_name_parts[0],
contentnode=node,
file_format_id=file_name_parts[1],
original_filename=file_data.get('original_filename') or 'file',
source_url=file_data.get('source_url'),
file_size=file_data['size'],
file_on_disk=DjFile(storage.open(file_path, 'rb')),
preset=kind_preset,
language_id=file_data.get('language'),
uploaded_by=user,
)
resource_obj.file_on_disk.name = file_path
resource_obj.save()
def create_file_from_contents(contents, ext=None, node=None, preset_id=None, uploaded_by=None):
checksum, _, path = write_raw_content_to_storage(contents, ext=ext)
result = File(
file_format_id=ext,
file_size=default_storage.size(path),
checksum=checksum,
preset_id=preset_id,
contentnode=node,
uploaded_by=uploaded_by
)
result.file_on_disk.name = path
result.save()
return result
def file_upload(request):
if request.method == 'POST':
preset = FormatPreset.objects.get(id=request.META.get('HTTP_PRESET'))
#Implement logic for switching out files without saving it yet
ext = os.path.splitext(request.FILES.values()[0]._name)[1].split(".")[-1]
original_filename = request.FILES.values()[0]._name
size = request.FILES.values()[0]._size
file_object = File(file_size=size, file_on_disk=request.FILES.values()[0], file_format=FileFormat.objects.get(extension=ext), original_filename = original_filename, preset=preset)
file_object.save()
return HttpResponse(json.dumps({
"success": True,
"filename": str(file_object),
"object_id": file_object.pk
}))
def create_file_from_contents(contents, ext=None, node=None, preset_id=None, uploaded_by=None):
checksum, _, path = write_raw_content_to_storage(contents, ext=ext)
result = File(
file_format_id=ext,
file_size=default_storage.size(path),
checksum=checksum,
preset_id=preset_id,
contentnode=node,
uploaded_by=uploaded_by
)
result.file_on_disk.name = path
result.save()
return result
def file_create(request):
if request.method == 'POST':
ext = os.path.splitext(request.FILES.values()[0]._name)[1].split(".")[-1]
size = request.FILES.values()[0]._size
kind = FormatPreset.objects.filter(allowed_formats__extension__contains=ext).first().kind
original_filename = request.FILES.values()[0]._name
new_node = ContentNode(title=original_filename.split(".")[0], kind=kind, license_id=settings.DEFAULT_LICENSE, author=request.user.get_full_name())
new_node.save()
file_object = File(file_on_disk=request.FILES.values()[0], file_format=FileFormat.objects.get(extension=ext), original_filename = original_filename, contentnode=new_node, file_size=size)
file_object.save()
return HttpResponse(json.dumps({
"success": True,
"object_id": new_node.pk
}))
def upload_url(self, request):
try:
size = request.data["size"]
checksum = request.data["checksum"]
filename = request.data["name"]
file_format = request.data["file_format"]
preset = request.data["preset"]
except KeyError:
raise HttpResponseBadRequest(
reason=
"Must specify: size, checksum, name, file_format, and preset")
try:
request.user.check_space(float(size), checksum)
except PermissionDenied as e:
return HttpResponseBadRequest(reason=str(e), status=418)
might_skip = File.objects.filter(checksum=checksum).exists()
filepath = generate_object_storage_name(checksum, filename)
checksum_base64 = codecs.encode(codecs.decode(checksum, "hex"),
"base64").decode()
retval = get_presigned_upload_url(filepath,
checksum_base64,
600,
content_length=size)
file = File(
file_size=size,
checksum=checksum,
original_filename=filename,
file_on_disk=filepath,
file_format_id=file_format,
preset_id=preset,
uploaded_by=request.user,
)
# Avoid using our file_on_disk attribute for checks
file.save(set_by_file_on_disk=False)
retval.update({
"might_skip": might_skip,
"file": self.serialize_object(id=file.id)
})
return Response(retval)
def compress_video_wrapper(file_object):
with tempfile.NamedTemporaryFile(suffix=".{}".format(file_formats.MP4)) as tempf:
tempf.close()
compress_video(str(file_object.file_on_disk), tempf.name, overwrite=True)
filename = write_file_to_storage(open(tempf.name, 'rb'), name=tempf.name)
checksum, ext = os.path.splitext(filename)
file_location = generate_file_on_disk_name(checksum, filename)
low_res_object = File(
file_on_disk=DjFile(open(file_location, 'rb')),
file_format_id=file_formats.MP4,
original_filename=file_object.original_filename,
contentnode=file_object.contentnode,
file_size=os.path.getsize(file_location),
preset_id=format_presets.VIDEO_LOW_RES,
)
low_res_object.save()
return low_res_object
def compress_video_wrapper(file_object):
with tempfile.NamedTemporaryFile(suffix=".{}".format(file_formats.MP4)) as tempf:
tempf.close()
compress_video(str(file_object.file_on_disk), tempf.name, overwrite=True)
filename = write_file_to_storage(open(tempf.name, 'rb'), name=tempf.name)
checksum, ext = os.path.splitext(filename)
file_location = generate_file_on_disk_name(checksum, filename)
low_res_object = File(
file_on_disk=DjFile(open(file_location, 'rb')),
file_format_id=file_formats.MP4,
original_filename = file_object.original_filename,
contentnode=file_object.contentnode,
file_size=os.path.getsize(file_location),
preset_id=format_presets.VIDEO_LOW_RES,
)
low_res_object.save()
return low_res_object
def map_files_to_assessment_item(question, data):
""" Generate files that reference the content node's assessment items """
for file_data in data:
file_hash = file_data['filename'].split(".")
kind_preset = FormatPreset.objects.get(id=file_data['preset'])
file_obj = File(
checksum=file_hash[0],
assessment_item=question,
file_format_id=file_hash[1],
original_filename=file_data.get('original_filename') or 'file',
source_url=file_data.get('source_url'),
file_size = file_data['size'],
file_on_disk=DjFile(open(generate_file_on_disk_name(file_hash[0], file_data['filename']), 'rb')),
preset=kind_preset,
)
file_obj.save()
def map_files_to_assessment_item(question, data):
""" Generate files that reference the content node's assessment items """
for file_data in data:
file_hash = file_data['filename'].split(".")
file_path = generate_file_on_disk_name(file_hash[0], file_data['filename'])
if not os.path.isfile(file_path):
raise IOError('{} not found'.format(file_path))
file_obj = File(
checksum=file_hash[0],
assessment_item=question,
file_format_id=file_hash[1],
original_filename=file_data.get('original_filename') or 'file',
source_url=file_data.get('source_url'),
file_size = file_data['size'],
file_on_disk=DjFile(open(file_path, 'rb')),
preset_id=file_data['preset'],
)
file_obj.save()
def map_files_to_assessment_item(question, data):
""" Generate files that reference the content node's assessment items """
for file_data in data:
file_hash = file_data['filename'].split(".")
file_path = generate_file_on_disk_name(file_hash[0], file_data['filename'])
if not os.path.isfile(file_path):
raise IOError('{} not found'.format(file_path))
file_obj = File(
checksum=file_hash[0],
assessment_item=question,
file_format_id=file_hash[1],
original_filename=file_data.get('original_filename') or 'file',
source_url=file_data.get('source_url'),
file_size = file_data['size'],
file_on_disk=DjFile(open(file_path, 'rb')),
preset_id=file_data['preset'],
)
file_obj.save()
def map_files_to_node(node, data):
""" Generate files that reference the content node """
# filter for file data that's not empty;
valid_data = (d for d in data if d)
for file_data in valid_data:
file_hash = file_data['filename'].split(".")
# Determine a preset if none is given
kind_preset = None
if file_data['preset'] is None:
kind_preset = FormatPreset.objects.filter(kind=node.kind, allowed_formats__extension__contains=file_hash[1], display=True).first()
else:
kind_preset = FormatPreset.objects.get(id=file_data['preset'])
file_path=generate_file_on_disk_name(file_hash[0], file_data['filename'])
if not os.path.isfile(file_path):
raise IOError('{} not found'.format(file_path))
language = None
try:
if file_data.get('language'):
language = Language.objects.get(pk=file_data['language'])
except ObjectDoesNotExist as e:
invalid_lang = file_data.get('language')
logging.warning("file_data with language {} does not exist.".format(invalid_lang))
raise ValidationError("file_data given was invalid; expected string, got {}".format(invalid_lang))
file_obj = File(
checksum=file_hash[0],
contentnode=node,
file_format_id=file_hash[1],
original_filename=file_data.get('original_filename') or 'file',
source_url=file_data.get('source_url'),
file_size = file_data['size'],
file_on_disk=DjFile(open(file_path, 'rb')),
preset=kind_preset,
language_id=file_data.get('language'),
)
file_obj.save()
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 map_files_to_assessment_item(user, question, data):
""" Generate files that reference the content node's assessment items """
for file_data in data:
file_name_parts = file_data['filename'].split(".")
file_path = generate_object_storage_name(file_name_parts[0],
file_data['filename'])
if not os.path.isfile(file_path):
return IOError('{} not found'.format(file_path))
resource_obj = File(
checksum=file_name_parts[0],
assessment_item=question,
file_format_id=file_name_parts[1],
original_filename=file_data.get('original_filename') or 'file',
source_url=file_data.get('source_url'),
file_size=file_data['size'],
file_on_disk=DjFile(open(file_path, 'rb')),
preset_id=file_data['preset'],
uploaded_by=user,
)
resource_obj.file_on_disk.name = file_path
resource_obj.save()
def file_create(request):
if request.method != 'POST':
return HttpResponseBadRequest("Only POST requests are allowed on this endpoint.")
original_filename, ext = os.path.splitext(request.FILES.values()[0]._name)
size = request.FILES.values()[0]._size
contentfile = DjFile(request.FILES.values()[0])
checksum = get_hash(contentfile)
request.user.check_space(size, checksum)
presets = FormatPreset.objects.filter(allowed_formats__extension__contains=ext[1:].lower())
kind = presets.first().kind
preferences = json.loads(request.POST.get('content_defaults', None) or "{}")
license = License.objects.filter(license_name=preferences.get('license')).first() # Use filter/first in case preference hasn't been set
license_id = license.pk if license else None
new_node = ContentNode(
title=original_filename,
kind=kind,
license_id=license_id,
author=preferences.get('author') or "",
aggregator=preferences.get('aggregator') or "",
provider=preferences.get('provider') or "",
copyright_holder=preferences.get('copyright_holder'),
parent_id=settings.ORPHANAGE_ROOT_ID,
)
if license and license.is_custom:
new_node.license_description = preferences.get('license_description')
new_node.save()
file_object = File(
file_on_disk=contentfile,
checksum=checksum,
file_format_id=ext[1:].lower(),
original_filename=request.FILES.values()[0]._name,
contentnode=new_node,
file_size=size,
uploaded_by=request.user,
)
file_object.save()
if kind.pk == content_kinds.VIDEO:
file_object.preset_id = guess_video_preset_by_resolution(str(file_object.file_on_disk))
elif presets.filter(supplementary=False).count() == 1:
file_object.preset = presets.filter(supplementary=False).first()
file_object.save()
thumbnail = None
try:
if preferences.get('auto_derive_video_thumbnail') and new_node.kind_id == content_kinds.VIDEO \
or preferences.get('auto_derive_audio_thumbnail') and new_node.kind_id == content_kinds.AUDIO \
or preferences.get('auto_derive_html5_thumbnail') and new_node.kind_id == content_kinds.HTML5 \
or preferences.get('auto_derive_document_thumbnail') and new_node.kind_id == content_kinds.DOCUMENT:
thumbnail = generate_thumbnail_from_node(new_node, set_node=True)
request.user.check_space(thumbnail.file_size, thumbnail.checksum)
except Exception:
if thumbnail:
thumbnail.delete()
return HttpResponse(json.dumps({
"success": True,
"node": JSONRenderer().render(ContentNodeEditSerializer(new_node).data)
}))
def subtitle_upload(request):
# File will be converted to VTT format
ext = file_formats.VTT
language_id = request.META.get('HTTP_LANGUAGE')
content_file = request.FILES.values()[0]
with NamedTemporaryFile() as temp_file:
try:
converter = build_subtitle_converter(
unicode(content_file.read(), 'utf-8'))
convert_language_code = language_id
# We're making the assumption here that language the user selected is truly the caption
# file's language if it's unknown
if len(converter.get_language_codes()) == 1 \
and converter.has_language(LANGUAGE_CODE_UNKNOWN):
converter.replace_unknown_language(language_id)
# determine if the request language exists by another code, otherwise we can't continue
if not converter.has_language(convert_language_code):
for language_code in converter.get_language_codes():
language = getlang_by_alpha2(language_code)
if language and language.code == language_id:
convert_language_code = language_code
break
else:
return HttpResponseBadRequest(
"Language '{}' not present in subtitle file".format(
language_id))
converter.write(temp_file.name, convert_language_code)
except InvalidSubtitleFormatError as ex:
return HttpResponseBadRequest(
"Subtitle conversion failed: {}".format(ex))
temp_file.seek(0)
converted_file = DjFile(temp_file)
checksum = get_hash(converted_file)
size = converted_file.size
request.user.check_space(size, checksum)
file_object = File(
file_size=size,
file_on_disk=converted_file,
checksum=checksum,
file_format_id=ext,
original_filename=request.FILES.values()[0]._name,
preset_id=request.META.get('HTTP_PRESET'),
language_id=language_id,
uploaded_by=request.user,
)
file_object.save()
return HttpResponse(
json.dumps({
"success":
True,
"filename":
str(file_object),
"file":
JSONRenderer().render(FileSerializer(file_object).data)
}))
def file_create(request):
if request.method != 'POST':
return HttpResponseBadRequest(
"Only POST requests are allowed on this endpoint.")
original_filename, ext = os.path.splitext(request.FILES.values()[0]._name)
size = request.FILES.values()[0]._size
contentfile = DjFile(request.FILES.values()[0])
checksum = get_hash(contentfile)
request.user.check_space(size, checksum)
presets = FormatPreset.objects.filter(
allowed_formats__extension__contains=ext[1:].lower())
kind = presets.first().kind
preferences = json.loads(
request.POST.get('content_defaults', None) or "{}")
license = License.objects.filter(
license_name=preferences.get('license')).first(
) # Use filter/first in case preference hasn't been set
license_id = license.pk if license else None
new_node = ContentNode(
title=original_filename,
kind=kind,
license_id=license_id,
author=preferences.get('author') or "",
aggregator=preferences.get('aggregator') or "",
provider=preferences.get('provider') or "",
copyright_holder=preferences.get('copyright_holder'),
parent_id=settings.ORPHANAGE_ROOT_ID,
)
if license and license.is_custom:
new_node.license_description = preferences.get('license_description')
# The orphanage is not an actual tree but just a long list of items.
with ContentNode.objects.disable_mptt_updates():
new_node.save()
file_object = File(
file_on_disk=contentfile,
checksum=checksum,
file_format_id=ext[1:].lower(),
original_filename=request.FILES.values()[0]._name,
contentnode=new_node,
file_size=size,
uploaded_by=request.user,
)
file_object.save()
if kind.pk == content_kinds.VIDEO:
file_object.preset_id = guess_video_preset_by_resolution(
str(file_object.file_on_disk))
elif presets.filter(supplementary=False).count() == 1:
file_object.preset = presets.filter(supplementary=False).first()
file_object.save()
thumbnail = None
try:
if preferences.get('auto_derive_video_thumbnail') and new_node.kind_id == content_kinds.VIDEO \
or preferences.get('auto_derive_audio_thumbnail') and new_node.kind_id == content_kinds.AUDIO \
or preferences.get('auto_derive_html5_thumbnail') and new_node.kind_id == content_kinds.HTML5 \
or preferences.get('auto_derive_document_thumbnail') and new_node.kind_id == content_kinds.DOCUMENT:
thumbnail = generate_thumbnail_from_node(new_node, set_node=True)
request.user.check_space(thumbnail.file_size, thumbnail.checksum)
except Exception:
if thumbnail:
thumbnail.delete()
return HttpResponse(
json.dumps({
"success":
True,
"node":
JSONRenderer().render(ContentNodeEditSerializer(new_node).data)
}))
def file_create(request):
if request.method == 'POST':
original_filename, ext = os.path.splitext(
request.FILES.values()[0]._name)
size = request.FILES.values()[0]._size
contentfile = DjFile(request.FILES.values()[0])
checksum = get_hash(contentfile)
request.user.check_space(size, checksum)
presets = FormatPreset.objects.filter(
allowed_formats__extension__contains=ext[1:].lower())
kind = presets.first().kind
preferences = json.loads(request.META.get('HTTP_PREFERENCES'))
author = preferences.get('author') or ""
license = License.objects.filter(
license_name=preferences.get('license')).first(
) # Use filter/first in case preference hasn't been set
license_id = license.pk if license else None
new_node = ContentNode(
title=original_filename,
kind=kind,
license_id=license_id,
author=author,
copyright_holder=preferences.get('copyright_holder'),
)
if license and license.is_custom:
new_node.license_description = preferences.get(
'license_description')
new_node.save()
file_object = File(
file_on_disk=contentfile,
checksum=checksum,
file_format_id=ext[1:].lower(),
original_filename=request.FILES.values()[0]._name,
contentnode=new_node,
file_size=size,
uploaded_by=request.user,
)
file_object.save()
if kind.pk == content_kinds.VIDEO:
file_object.preset_id = guess_video_preset_by_resolution(
str(file_object.file_on_disk))
elif presets.filter(supplementary=False).count() == 1:
file_object.preset = presets.filter(supplementary=False).first()
file_object.save()
thumbnail = None
try:
if preferences.get('auto_derive_video_thumbnail') and new_node.kind_id == content_kinds.VIDEO \
or preferences.get('auto_derive_audio_thumbnail') and new_node.kind_id == content_kinds.AUDIO \
or preferences.get('auto_derive_html5_thumbnail') and new_node.kind_id == content_kinds.HTML5 \
or preferences.get('auto_derive_document_thumbnail') and new_node.kind_id == content_kinds.DOCUMENT:
thumbnail = generate_thumbnail_from_node(new_node,
set_node=True)
request.user.check_space(thumbnail.file_size,
thumbnail.checksum)
except Exception:
if thumbnail:
thumbnail.delete()
return HttpResponse(
json.dumps({
"success":
True,
"node":
JSONRenderer().render(
ContentNodeEditSerializer(new_node).data)
}))