def aip_file_download(request, uuid):
es_client = es.get_client()
# get AIP file properties
aipfile = es.get_aipfile_data(es_client, uuid, fields="filePath,FILEUUID,AIPUUID")
# get file's AIP's properties
sipuuid = aipfile["_source"]["AIPUUID"]
aip = es.get_aip_data(
es_client, sipuuid, fields="uuid,name,filePath,size,origin,created"
)
aip_filepath = aip["_source"]["filePath"]
# work out path components
aip_archive_filename = os.path.basename(aip_filepath)
# splittext doesn't deal with double extensions, so special-case .tar.bz2
if aip_archive_filename.endswith(".tar.bz2"):
subdir = aip_archive_filename[:-8]
else:
subdir = os.path.splitext(aip_archive_filename)[0]
file_relative_path = os.path.join(subdir, "data", aipfile["_source"]["filePath"])
redirect_url = storage_service.extract_file_url(
aip["_source"]["uuid"], file_relative_path
)
return helpers.stream_file_from_storage_service(
redirect_url, "Storage service returned {}; check logs?"
)
def send_thumbnail(request, fileuuid):
# get AIP location to use to find root of AIP storage
es_client = es.get_client()
aipfile = es.get_aipfile_data(es_client, fileuuid, fields="AIPUUID")
sipuuid = aipfile["_source"]["AIPUUID"]
thumbnail_path = os.path.join(
settings.SHARED_DIRECTORY, "www", "thumbnails", sipuuid, fileuuid + ".jpg"
)
# send "blank" thumbnail if one exists:
# Because thumbnails aren't kept in ElasticSearch they can be queried for,
# during searches, from multiple dashboard servers.
# Because ElasticSearch don't know if a thumbnail exists or not, this is
# a way of not causing visual disruption if a thumbnail doesn't exist.
if not os.path.exists(thumbnail_path):
thumbnail_path = os.path.join(settings.BASE_PATH, "media/images/1x1-pixel.png")
return helpers.send_file(request, thumbnail_path)