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""" |
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ffmpeg_streaming.clouds |
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~~~~~~~~~~~~ |
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Upload and download files -> clouds |
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:copyright: (c) 2020 by Amin Yazdanpanah. |
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:website: https://www.aminyazdanpanah.com |
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:email: [email protected] |
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:license: MIT, see LICENSE for more details. |
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""" |
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import abc |
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import logging |
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import tempfile |
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from os import listdir |
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from os.path import isfile, join |
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class Clouds(abc.ABC): |
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@abc.abstractmethod |
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def upload_directory(self, directory: str, **options) -> None: |
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pass |
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@abc.abstractmethod |
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def download(self, filename: str = None, **options) -> str: |
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pass |
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class S3(Clouds): |
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def __init__(self, **options): |
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try: |
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import boto3 |
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from botocore.exceptions import ClientError |
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except ImportError as e: |
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raise ImportError("no specified import name! make sure you install the package via pip:\n\n" |
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"pip install boto3") |
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self.s3 = boto3.client('s3', **options) |
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self.err = ClientError |
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def upload_directory(self, directory, **options): |
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bucket_name = options.pop('bucket_name', None) |
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if bucket_name is None: |
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raise ValueError('You should pass a bucket name') |
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files = [f for f in listdir(directory) if isfile(join(directory, f))] |
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try: |
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for file in files: |
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self.s3.upload_file(join(directory, file), bucket_name, file) |
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except self.err as e: |
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logging.error(e) |
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raise RuntimeError(e) |
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logging.info("The " + directory + "directory was uploaded to Amazon S3 successfully") |
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def download(self, filename=None, **options): |
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bucket_name = options.pop('bucket_name', None) |
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key = options.pop('key', None) |
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if bucket_name is None or key is None: |
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raise ValueError('You should pass a bucket and key name') |
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if filename is None: |
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filename = tempfile.NamedTemporaryFile(suffix='_' + key + '_py_ff_vi_st.tmp', delete=False) |
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else: |
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filename = open(filename, 'wb') |
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try: |
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with filename as f: |
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self.s3.download_fileobj(bucket_name, key, f) |
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logging.info("The " + filename.name + " file was downloaded") |
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except self.err as e: |
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logging.error(e) |
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raise RuntimeError(e) |
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return filename.name |
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class GCS(Clouds): |
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def __init__(self, **options): |
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try: |
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from google.cloud import storage |
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except ImportError as e: |
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raise ImportError("no specified import name! make sure you install the package via pip:\n\n" |
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"pip install google-cloud-storage") |
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self.client = storage.Client(**options) |
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def upload_directory(self, directory, **options): |
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bucket_name = options.pop('bucket_name', None) |
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if bucket_name is None: |
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raise ValueError('You should pass a bucket name') |
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bucket = self.client.get_bucket(bucket_name) |
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files = [f for f in listdir(directory) if isfile(join(directory, f))] |
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for file in files: |
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blob = bucket.blob(bucket_name + file, **options) |
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blob.upload_from_filename(join(directory, file)) |
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def download(self, filename=None, **options): |
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bucket_name = options.pop('bucket_name', None) |
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if bucket_name is None: |
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raise ValueError('You should pass a bucket name') |
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bucket = self.client.get_bucket(bucket_name) |
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if filename is None: |
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with tempfile.NamedTemporaryFile(suffix='_py_ff_vi_st.tmp', delete=False) as tmp: |
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filename = tmp.name |
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object_name = options.pop('object_name', None) |
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if object_name is None: |
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raise ValueError('You should pass an object name') |
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blob = bucket.get_blob(object_name, options) |
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blob.download_to_filename(filename) |
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return filename |
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class MAS(Clouds): |
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def __init__(self, **options): |
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try: |
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from azure.storage.blob import BlockBlobService |
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except ImportError as e: |
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raise ImportError("no specified import name! make sure you installed the package via pip:\n\n" |
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"pip install azure-storage-blob") |
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self.block_blob_service = BlockBlobService(**options) |
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def upload_directory(self, directory, **options): |
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container = options.pop('container', None) |
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if container is None: |
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raise ValueError('You should pass a container name') |
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files = [f for f in listdir(directory) if isfile(join(directory, f))] |
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try: |
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for file in files: |
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self.block_blob_service.create_blob_from_path(container, file, join(directory, file)) |
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except: |
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error = "An error occurred while uploading the directory" |
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logging.error(error) |
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raise RuntimeError(error) |
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def download(self, filename=None, **options): |
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container = options.pop('container', None) |
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blob = options.pop('blob', None) |
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if container is None or blob is None: |
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raise ValueError('You should pass a container name and a blob name') |
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if filename is None: |
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with tempfile.NamedTemporaryFile(suffix='_py_ff_vi_st.tmp', delete=False) as tmp: |
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filename = tmp.name |
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try: |
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self.block_blob_service.get_blob_to_path(container, blob, filename) |
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logging.info("The " + filename + " file was downloaded") |
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except: |
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error = "An error occurred while downloading the file" |
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logging.error(error) |
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raise RuntimeError(error) |
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return filename |
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class CloudManager: |
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def __init__(self): |
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self.clouds = [] |
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def add(self, cloud: Clouds, **options): |
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self.clouds.append((cloud, options)) |
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return self |
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def transfer(self, method, path): |
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for cloud in self.clouds: |
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getattr(cloud[0], method)(path, **cloud[1]) |
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__all__ = [ |
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'Clouds', |
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'CloudManager', |
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'S3', |
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'GCS', |
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'MAS' |
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] |
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