class OssStorage(Storage):
"""
Aliyun OSS Storage
"""
def __init__(self,
access_key_id=None,
access_key_secret=None,
end_point=None,
bucket_name=None,
expire_time=None):
self.access_key_id = access_key_id if access_key_id else _get_config(
'OSS_ACCESS_KEY_ID')
self.access_key_secret = access_key_secret if access_key_secret else _get_config(
'OSS_ACCESS_KEY_SECRET')
self.end_point = _normalize_endpoint(
end_point if end_point else _get_config('OSS_ENDPOINT'))
self.bucket_name = bucket_name if bucket_name else _get_config(
'OSS_BUCKET_NAME')
self.expire_time = expire_time if expire_time else int(
_get_config('OSS_EXPIRE_TIME', default=60 * 60 * 24 * 30))
self.auth = Auth(self.access_key_id, self.access_key_secret)
self.service = Service(self.auth, self.end_point)
self.bucket = Bucket(self.auth, self.end_point, self.bucket_name)
# try to get bucket acl to check bucket exist or not
try:
self.bucket_acl = self.bucket.get_bucket_acl().acl
except oss2.exceptions.NoSuchBucket:
raise SuspiciousOperation("Bucket '%s' does not exist." %
self.bucket_name)
def _get_key_name(self, name):
"""
Get the object key name in OSS, e.g.,
location: /media/
input : test.txt
output : media/test.txt
"""
# urljoin won't work if name is absolute path
name = name.lstrip('/')
base_path = force_text(self.location)
final_path = urljoin(base_path + "/", name)
name = os.path.normpath(final_path.lstrip('/'))
# Add / to the end of path since os.path.normpath will remove it
if final_path.endswith('/') and not name.endswith('/'):
name += '/'
if six.PY2:
name = name.encode('utf-8')
# Store filenames with forward slashes, even on Windows.
return name.replace('\\', '/')
def _open(self, name, mode='rb'):
logger().debug("name: %s, mode: %s", name, mode)
if mode != "rb":
raise ValueError("OSS files can only be opened in read-only mode")
target_name = self._get_key_name(name)
logger().debug("target name: %s", target_name)
try:
# Load the key into a temporary file
tmpf = SpooledTemporaryFile(max_size=10 * 1024 * 1024) # 10MB
obj = self.bucket.get_object(target_name)
logger().info("content length: %d, requestid: %s",
obj.content_length, obj.request_id)
if obj.content_length is None:
shutil.copyfileobj(obj, tmpf)
else:
oss2.utils.copyfileobj_and_verify(obj,
tmpf,
obj.content_length,
request_id=obj.request_id)
tmpf.seek(0)
return OssFile(tmpf, target_name, self)
except oss2.exceptions.NoSuchKey:
raise OssError("%s does not exist" % name)
except:
raise OssError("Failed to open %s" % name)
def _save(self, name, content):
target_name = self._get_key_name(name)
logger().debug("target name: %s", target_name)
logger().debug("content: %s", content)
self.bucket.put_object(target_name, content)
return os.path.normpath(name)
def create_dir(self, dirname):
target_name = self._get_key_name(dirname)
if not target_name.endswith('/'):
target_name += '/'
self.bucket.put_object(target_name, '')
def exists(self, name):
target_name = self._get_key_name(name)
logger().debug("name: %s, target name: %s", name, target_name)
if name.endswith("/"):
# This looks like a directory, but OSS has no concept of directories
# need to check whether the key starts with this prefix
result = self.bucket.list_objects(prefix=target_name,
delimiter='',
marker='',
max_keys=1)
if len(result.object_list) == 0:
logger().debug("object list: %s", result.object_list)
else:
logger().debug("object list: %s", result.object_list[0].key)
return bool(result.object_list)
exist = self.bucket.object_exists(target_name)
logger().debug("'%s' exist: %s", target_name, exist)
if not exist:
# It's not a file, but it might be a directory. Check again that it's not a directory.
name2 = name + "/"
logger().debug("to check %s", name2)
return self.exists(name2)
return exist
def get_file_meta(self, name):
name = self._get_key_name(name)
return self.bucket.get_object_meta(name)
def size(self, name):
file_meta = self.get_file_meta(name)
return file_meta.content_length
def modified_time(self, name):
file_meta = self.get_file_meta(name)
return datetime.fromtimestamp(file_meta.last_modified)
created_time = accessed_time = modified_time
def get_modified_time(self, name):
file_meta = self.get_file_meta(name)
if settings.USE_TZ:
return datetime.utcfromtimestamp(
file_meta.last_modified).replace(tzinfo=utc)
else:
return datetime.fromtimestamp(file_meta.last_modified)
get_created_time = get_accessed_time = get_modified_time
def content_type(self, name):
name = self._get_key_name(name)
file_info = self.bucket.head_object(name)
return file_info.content_type
def listdir(self, name):
if name == ".":
name = ""
name = self._get_key_name(name)
if not name.endswith('/'):
name += "/"
logger().debug("name: %s", name)
files = []
dirs = []
for obj in ObjectIterator(self.bucket, prefix=name, delimiter='/'):
if obj.is_prefix():
dirs.append(obj.key)
else:
files.append(obj.key)
logger().debug("dirs: %s", list(dirs))
logger().debug("files: %s", files)
return dirs, files
def url(self, name):
key = self._get_key_name(name)
str = self.bucket.sign_url('GET', key, expires=self.expire_time)
if self.bucket_acl != BUCKET_ACL_PRIVATE:
idx = str.find('?')
if idx > 0:
str = str[:idx].replace('%2F', '/')
return str
def delete(self, name):
name = self._get_key_name(name)
logger().debug("delete name: %s", name)
result = self.bucket.delete_object(name)
def delete_with_slash(self, dirname):
name = self._get_key_name(dirname)
if not name.endswith('/'):
name += '/'
logger().debug("delete name: %s", name)
result = self.bucket.delete_object(name)
class OssStorage(Storage):
"""
Aliyun OSS Storage
"""
def __init__(self,
access_key_id=None,
access_key_secret=None,
end_point=None,
bucket_name=None):
self.access_key_id = access_key_id if access_key_id else _get_config(
'OSS_ACCESS_KEY_ID')
self.access_key_secret = access_key_secret if access_key_secret else _get_config(
'OSS_ACCESS_KEY_SECRET')
self.end_point = _normalize_endpoint(
end_point if end_point else _get_config('OSS_ENDPOINT'))
self.bucket_name = bucket_name if bucket_name else _get_config(
'OSS_BUCKET_NAME')
sts_token = getattr(settings, 'ALIYUN_STS_TOKEN', None)
# 这里表示如果有sts_token，需要使用stsauth进行鉴权
if sts_token:
self.auth = StsAuth(self.access_key_id, self.access_key_secret,
sts_token)
else:
self.auth = Auth(self.access_key_id, self.access_key_secret)
self.service = Service(self.auth, self.end_point)
use_oss_internal = getattr(settings, 'OSS_USE_INTERNAL', None)
# 这里表示，如果是阿里云的内网机器，默认走内网的end_point，否则使用外网的end_point
# 使用内网end_point，速度快，不收费
if use_oss_internal:
self.end_point_internal = _normalize_endpoint(
end_point if end_point else _get_config('OSS_ENDPOINT_INTERNAL'
))
self.bucket = Bucket(self.auth, self.end_point_internal,
self.bucket_name)
else:
self.bucket = Bucket(self.auth, self.end_point, self.bucket_name)
self.bucket_public = Bucket(self.auth, self.end_point,
self.bucket_name)
# try to get bucket acl to check bucket exist or not
try:
self.bucket.get_bucket_acl().acl
except oss2.exceptions.NoSuchBucket:
raise SuspiciousOperation("Bucket '%s' does not exist." %
self.bucket_name)
def _get_key_name(self, name):
"""
Get the object key name in OSS, e.g.,
location: /media/
input : test.txt
output : media/test.txt
"""
base_path = force_text(self.location)
final_path = urljoin(base_path + "/", name)
name = os.path.normpath(final_path.lstrip('/'))
name = name.replace('\\', '/')
if six.PY2:
name = name.encode('utf-8')
return name
def _open(self, name, mode='rb'):
logger().debug("name: %s, mode: %s", name, mode)
if mode != "rb":
raise ValueError("OSS files can only be opened in read-only mode")
target_name = self._get_key_name(name)
logger().debug("target name: %s", target_name)
try:
# Load the key into a temporary file
tmpf = NamedTemporaryFile() # 10MB
obj = self.bucket.get_object(target_name)
logger().info("content length: %d, requestid: %s",
obj.content_length, obj.request_id)
if obj.content_length is None:
shutil.copyfileobj(obj, tmpf)
else:
oss2.utils.copyfileobj_and_verify(obj,
tmpf,
obj.content_length,
request_id=obj.request_id)
tmpf.seek(0)
return OssFile(tmpf, target_name, self)
except oss2.exceptions.NoSuchKey:
raise OssError("%s does not exist" % name)
except:
raise OssError("Failed to open %s" % name)
def _save(self, name, content):
target_name = self._get_key_name(name)
logger().debug("target name: %s", target_name)
logger().debug("content: %s", content)
self.bucket.put_object(target_name, content)
return os.path.normpath(name)
def create_dir(self, dirname):
target_name = self._get_key_name(dirname)
if not target_name.endswith('/'):
target_name += '/'
self.bucket.put_object(target_name, '')
def exists(self, name):
target_name = self._get_key_name(name)
logger().debug("name: %s, target name: %s", name, target_name)
if name.endswith("/"):
# This looks like a directory, but OSS has no concept of directories
# need to check whether the key starts with this prefix
result = self.bucket.list_objects(prefix=target_name,
delimiter='',
marker='',
max_keys=1)
if len(result.object_list) == 0:
logger().debug("object list: %s", result.object_list)
else:
logger().debug("object list: %s", result.object_list[0].key)
return bool(result.object_list)
exist = self.bucket.object_exists(target_name)
logger().debug("'%s' exist: %s", target_name, exist)
if not exist:
# It's not a file, but it might be a directory. Check again that it's not a directory.
name2 = name + "/"
logger().debug("to check %s", name2)
return self.exists(name2)
return exist
def get_file_meta(self, name):
name = self._get_key_name(name)
return self.bucket.get_object_meta(name)
def size(self, name):
file_meta = self.get_file_meta(name)
return file_meta.content_length
def modified_time(self, name):
file_meta = self.get_file_meta(name)
return datetime.fromtimestamp(file_meta.last_modified)
created_time = accessed_time = modified_time
def get_modified_time(self, name):
file_meta = self.get_file_meta(name)
if settings.USE_TZ:
return datetime.utcfromtimestamp(
file_meta.last_modified).replace(tzinfo=utc)
else:
return datetime.fromtimestamp(file_meta.last_modified)
get_created_time = get_accessed_time = get_modified_time
def content_type(self, name):
name = self._get_key_name(name)
file_info = self.bucket.head_object(name)
return file_info.content_type
def listdir(self, name):
if name == ".":
name = ""
name = self._get_key_name(name)
if not name.endswith('/'):
name += "/"
logger().debug("name: %s", name)
files = []
dirs = []
for obj in ObjectIterator(self.bucket, prefix=name, delimiter='/'):
if obj.is_prefix():
dirs.append(obj.key)
else:
files.append(obj.key)
logger().debug("dirs: %s", list(dirs))
logger().debug("files: %s", files)
return dirs, files
def url(self, name, expire=60 * 60):
key = self._get_key_name(name)
custom_domain = getattr(settings, 'OSS_CUSTOM_DOMAIN', None)
# return self.bucket.sign_url('GET', key, expire)
# 这里一般是提供给浏览器用的，所以走外网的end_point
url = self.bucket_public.sign_url('GET', key, expire)
url = url.replace('%2F', '/')
if custom_domain:
url_list = list(urlsplit(url))
custom_domain_list = list(urlsplit(custom_domain))
url_list[0] = custom_domain_list[0]
url_list[1] = custom_domain_list[1]
url = urlunsplit(url_list)
return url
def delete(self, name):
name = self._get_key_name(name)
logger().debug("delete name: %s", name)
result = self.bucket.delete_object(name)
def delete_with_slash(self, dirname):
name = self._get_key_name(dirname)
if not name.endswith('/'):
name += '/'
logger().debug("delete name: %s", name)
result = self.bucket.delete_object(name)