SSL Bucket, Light Logic Refactor and Docstring Update for Alibaba Pro…

…vider (#23891)

airflow/providers/alibaba/cloud/hooks/oss.py

@@ -43,11 +43,10 @@ def provide_bucket_name(func: T) -> T:
     def wrapper(*args, **kwargs) -> T:
         bound_args = function_signature.bind(*args, **kwargs)
         self = args[0]
-        if 'bucket_name' not in bound_args.arguments or bound_args.arguments['bucket_name'] is None:
-            if self.oss_conn_id:
-                connection = self.get_connection(self.oss_conn_id)
-                if connection.schema:
-                    bound_args.arguments['bucket_name'] = connection.schema
+        if bound_args.arguments.get('bucket_name') is None and self.oss_conn_id:
+            connection = self.get_connection(self.oss_conn_id)
+            if connection.schema:
+                bound_args.arguments['bucket_name'] = connection.schema
 
         return func(*bound_args.args, **bound_args.kwargs)
 
@@ -92,10 +91,7 @@ class OSSHook(BaseHook):
     def __init__(self, region: Optional[str] = None, oss_conn_id='oss_default', *args, **kwargs) -> None:
         self.oss_conn_id = oss_conn_id
         self.oss_conn = self.get_connection(oss_conn_id)
-        if region is None:
-            self.region = self.get_default_region()
-        else:
-            self.region = region
+        self.region = self.get_default_region() if region is None else region
         super().__init__(*args, **kwargs)
 
     def get_conn(self) -> "Connection":
@@ -148,7 +144,7 @@ def get_bucket(self, bucket_name: Optional[str] = None) -> oss2.api.Bucket:
         """
         auth = self.get_credential()
         assert self.region is not None
-        return oss2.Bucket(auth, 'http://oss-' + self.region + '.aliyuncs.com', bucket_name)
+        return oss2.Bucket(auth, f'https://oss-{self.region}.aliyuncs.com', bucket_name)
 
     @provide_bucket_name
     @unify_bucket_name_and_key
@@ -352,28 +348,28 @@ def get_credential(self) -> oss2.auth.Auth:
         if not auth_type:
             raise Exception("No auth_type specified in extra_config. ")
 
-        if auth_type == 'AK':
-            oss_access_key_id = extra_config.get('access_key_id', None)
-            oss_access_key_secret = extra_config.get('access_key_secret', None)
-            if not oss_access_key_id:
-                raise Exception("No access_key_id is specified for connection: " + self.oss_conn_id)
-            if not oss_access_key_secret:
-                raise Exception("No access_key_secret is specified for connection: " + self.oss_conn_id)
-            return oss2.Auth(oss_access_key_id, oss_access_key_secret)
-        else:
-            raise Exception("Unsupported auth_type: " + auth_type)
+        if auth_type != 'AK':
+            raise Exception(f"Unsupported auth_type: {auth_type}")
+        oss_access_key_id = extra_config.get('access_key_id', None)
+        oss_access_key_secret = extra_config.get('access_key_secret', None)
+        if not oss_access_key_id:
+            raise Exception(f"No access_key_id is specified for connection: {self.oss_conn_id}")
+
+        if not oss_access_key_secret:
+            raise Exception(f"No access_key_secret is specified for connection: {self.oss_conn_id}")
+
+        return oss2.Auth(oss_access_key_id, oss_access_key_secret)
 
     def get_default_region(self) -> Optional[str]:
         extra_config = self.oss_conn.extra_dejson
         auth_type = extra_config.get('auth_type', None)
         if not auth_type:
             raise Exception("No auth_type specified in extra_config. ")
 
-        if auth_type == 'AK':
-            default_region = extra_config.get('region', None)
-            if not default_region:
-                raise Exception("No region is specified for connection: " + self.oss_conn_id)
-        else:
-            raise Exception("Unsupported auth_type: " + auth_type)
+        if auth_type != 'AK':
+            raise Exception(f"Unsupported auth_type: {auth_type}")
 
+        default_region = extra_config.get('region', None)
+        if not default_region:
+            raise Exception(f"No region is specified for connection: {self.oss_conn_id}")
         return default_region

airflow/providers/alibaba/cloud/log/oss_task_handler.py

@@ -15,7 +15,9 @@
 # KIND, either express or implied.  See the License for the
 # specific language governing permissions and limitations
 # under the License.
+import contextlib
 import os
+import pathlib
 import sys
 
 if sys.version_info >= (3, 8):
@@ -61,6 +63,7 @@ def hook(self):
             )
 
     def set_context(self, ti):
+        """This function is used to set the context of the handler"""
         super().set_context(ti)
         # Local location and remote location is needed to open and
         # upload local log file to OSS remote storage.
@@ -91,8 +94,7 @@ def close(self):
         remote_loc = self.log_relative_path
         if os.path.exists(local_loc):
             # read log and remove old logs to get just the latest additions
-            with open(local_loc) as logfile:
-                log = logfile.read()
+            log = pathlib.Path(local_loc).read_text()
             self.oss_write(log, remote_loc)
 
         # Mark closed so we don't double write if close is called twice
@@ -114,15 +116,14 @@ def _read(self, ti, try_number, metadata=None):
         log_relative_path = self._render_filename(ti, try_number)
         remote_loc = log_relative_path
 
-        if self.oss_log_exists(remote_loc):
-            # If OSS remote file exists, we do not fetch logs from task instance
-            # local machine even if there are errors reading remote logs, as
-            # returned remote_log will contain error messages.
-            remote_log = self.oss_read(remote_loc, return_error=True)
-            log = f'*** Reading remote log from {remote_loc}.\n{remote_log}\n'
-            return log, {'end_of_log': True}
-        else:
+        if not self.oss_log_exists(remote_loc):
             return super()._read(ti, try_number)
+        # If OSS remote file exists, we do not fetch logs from task instance
+        # local machine even if there are errors reading remote logs, as
+        # returned remote_log will contain error messages.
+        remote_log = self.oss_read(remote_loc, return_error=True)
+        log = f'*** Reading remote log from {remote_loc}.\n{remote_log}\n'
+        return log, {'end_of_log': True}
 
     def oss_log_exists(self, remote_log_location):
         """
@@ -131,11 +132,9 @@ def oss_log_exists(self, remote_log_location):
         :param remote_log_location: log's location in remote storage
         :return: True if location exists else False
         """
-        oss_remote_log_location = self.base_folder + '/' + remote_log_location
-        try:
+        oss_remote_log_location = f'{self.base_folder}/{remote_log_location}'
+        with contextlib.suppress(Exception):
             return self.hook.key_exist(self.bucket_name, oss_remote_log_location)
-        except Exception:
-            pass
         return False
 
     def oss_read(self, remote_log_location, return_error=False):
@@ -148,7 +147,7 @@ def oss_read(self, remote_log_location, return_error=False):
             error occurs. Otherwise returns '' when an error occurs.
         """
         try:
-            oss_remote_log_location = self.base_folder + '/' + remote_log_location
+            oss_remote_log_location = f'{self.base_folder}/{remote_log_location}'
             self.log.info("read remote log: %s", oss_remote_log_location)
             return self.hook.read_key(self.bucket_name, oss_remote_log_location)
         except Exception:
@@ -168,7 +167,7 @@ def oss_write(self, log, remote_log_location, append=True):
         :param append: if False, any existing log file is overwritten. If True,
             the new log is appended to any existing logs.
         """
-        oss_remote_log_location = self.base_folder + '/' + remote_log_location
+        oss_remote_log_location = f'{self.base_folder}/{remote_log_location}'
         pos = 0
         if append and self.oss_log_exists(oss_remote_log_location):
             head = self.hook.head_key(self.bucket_name, oss_remote_log_location)

airflow/providers/alibaba/cloud/sensors/oss_key.py

@@ -66,7 +66,12 @@ def __init__(
         self.hook: Optional[OSSHook] = None
 
     def poke(self, context: 'Context'):
-
+        """
+        Check if the object exists in the bucket to pull key.
+        @param self - the object itself
+        @param context - the context of the object
+        @returns True if the object exists, False otherwise
+        """
         if self.bucket_name is None:
             parsed_url = urlparse(self.bucket_key)
             if parsed_url.netloc == '':

tests/providers/alibaba/cloud/hooks/test_oss.py

@@ -61,7 +61,7 @@ def test_get_bucket(self, mock_oss2, mock_get_credential):
         self.hook.get_bucket('mock_bucket_name')
         mock_get_credential.assert_called_once_with()
         mock_oss2.Bucket.assert_called_once_with(
-            mock_get_credential.return_value, 'http://oss-mock_region.aliyuncs.com', MOCK_BUCKET_NAME
+            mock_get_credential.return_value, 'https://oss-mock_region.aliyuncs.com', MOCK_BUCKET_NAME
         )
 
     @mock.patch(OSS_STRING.format('OSSHook.get_bucket'))