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# coding: utf-8 | |
from __future__ import unicode_literals, absolute_import | |
import os | |
import boto | |
import math | |
from boto.s3.key import Key | |
import requests | |
import shutil | |
from filechunkio import FileChunkIO | |
class AWSError(Exception): | |
pass | |
class AWSConfig(object): | |
def __init__(self, service): | |
self.app_key = os.getenv('AWS_APP_KEY') | |
self.secret_key = os.getenv('AWS_SECRET_KEY') | |
self.service = service | |
self.conn = None | |
def connect(self): | |
try: | |
self.conn = getattr(boto, 'connect_' + self.service)(self.app_key, self.secret_key) | |
except boto.exception.AWSConnectionError, error: | |
raise AWSError('Error: %i: %s' % (error.status, error.reason)) | |
return self.conn | |
class S3BucketConfig(AWSConfig): | |
def __init__(self, bucket_name): | |
super(S3BucketConfig, self).__init__('s3') | |
self.bucket_name = bucket_name | |
self.bucket_object = None | |
def bucket(self): | |
try: | |
self.bucket_object = self.connect().get_bucket(self.bucket_name) | |
except boto.exception.S3ResponseError: | |
try: | |
self.bucket_object = self.connect().create_bucket(self.bucket_name) | |
self.bucket_object.set_canned_acl('public-read') | |
except boto.exception.S3CreateError, error: | |
raise AWSError('Error: %i: %s' % (error.status, error.reason)) | |
return self.bucket_object | |
class S3BucketFileSend(S3BucketConfig): | |
def __init__(self, bucket_name, download_url, download_to, folder=''): | |
super(S3BucketFileSend, self).__init__(bucket_name) | |
self.download_url = download_url | |
self.download_to = download_to | |
self.file_name = os.path.basename(self.download_to) | |
self.folder = folder | |
def save_file(self): | |
r = requests.get(self.download_url, stream=True) | |
with open(self.download_to, 'wb') as f: | |
r.raw.decode_content = True | |
shutil.copyfileobj(r.raw, f) | |
return r.status_code | |
def source_size(self): | |
return os.stat(self.download_to).st_size | |
def upload(self): | |
multi_part = self.bucket().initiate_multipart_upload(self.file_name) | |
chunk_size = 52428800 | |
chunk_count = int(math.ceil(self.source_size() / float(chunk_size))) | |
for i in range(chunk_count): | |
offset = chunk_size * i | |
byte_set = min(chunk_size, self.source_size() - offset) | |
with FileChunkIO(self.download_to, 'r', offset=offset, bytes=byte_set) as f: | |
multi_part.upload_part_from_file(f, part_num=i + 1) | |
k = Key(self.bucket()) | |
k.name = self.folder + '/' + self.file_name if self.folder else self.file_name | |
k.set_contents_from_filename(self.file_name, policy='public-read') | |
multi_part.complete_upload() | |
return k.name | |
def as_view(self): | |
self.save_file() | |
self.upload() | |
if os.path.exists(self.download_to): | |
os.remove(self.download_to) | |
if __name__ == '__main__': | |
BASE_DIR = os.path.dirname(os.path.abspath(__file__)) | |
URL = 'https://assets-cdn.github.com/images/modules/dashboard/bootcamp/octocat_setup.png' | |
FILE_NAME = URL.split('/')[-1] | |
FILE_PATH = os.path.join(BASE_DIR, FILE_NAME) | |
os.environ['AWS_APP_KEY'] = 'AWS_APP_KEY' | |
os.environ['AWS_SECRET_KEY'] = 'AWS_SECRET_KEY' | |
send = S3BucketFileSend('bucket-name', URL, FILE_PATH, folder='gist123') | |
send.as_view() |
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