Feature/azure blob storage

addons.json

@@ -17,7 +17,8 @@
         "twofactor",
         "wiki",
         "googledrive",
-        "bitbucket"
+        "bitbucket",
+        "azureblobstorage"
     ],
     "addons_default": [
         "osfstorage"

addons/azureblobstorage/apps.py

@@ -0,0 +1,36 @@
+from addons.base.apps import BaseAddonAppConfig
+
+
+class AzureBlobStorageAddonAppConfig(BaseAddonAppConfig):
+
+    default = True
+    name = 'addons.azureblobstorage'
+    label = 'addons_azureblobstorage'
+    full_name = 'Azure Blob Storage'
+    short_name = 'azureblobstorage'
+    owners = ['user', 'node']
+    configs = ['accounts', 'node']
+    categories = ['storage']
+    has_hgrid_files = True
+
+    # Define actions for NodeLog
+    FOLDER_SELECTED = 'azureblobstorage_folder_selected'
+    NODE_AUTHORIZED = 'azureblobstorage_node_authorized'
+    NODE_DEAUTHORIZED = 'azureblobstorage_node_deauthorized'
+
+    actions = (FOLDER_SELECTED, NODE_AUTHORIZED, NODE_DEAUTHORIZED, )
+
+    @property
+    def routes(self):
+        # No Flask routes needed for gravyvalet-managed addon
+        return []
+
+    @property
+    def user_settings(self):
+        # No UserSettings for gravyvalet-managed addon
+        return None
+
+    @property
+    def node_settings(self):
+        # No NodeSettings for gravyvalet-managed addon
+        return None

addons/azureblobstorage/models.py

@@ -0,0 +1,33 @@
+# -*- coding: utf-8 -*-
+
+from osf.models.files import File, Folder, BaseFileNode
+from osf.models.external import ExternalProvider
+
+class AzureBlobStorageFileNode(BaseFileNode):
+    _provider = 'azureblobstorage'
+
+
+class AzureBlobStorageFolder(AzureBlobStorageFileNode, Folder):
+    pass
+
+
+class AzureBlobStorageFile(AzureBlobStorageFileNode, File):
+    version_identifier = 'version'
+
+
+class AzureBlobStorageProvider(ExternalProvider):
+    """An alternative to `ExternalProvider` not tied to OAuth"""
+
+    name = 'Azure Blob Storage'
+    short_name = 'azureblobstorage'
+
+    def __init__(self, account=None):
+        super(AzureBlobStorageProvider, self).__init__()
+
+        self.account = account
+
+    def __repr__(self):
+        return '<{name}: {status}>'.format(
+            name=self.__class__.__name__,
+            status=self.account.display_name if self.account else 'anonymous'
+        )

api/base/settings/defaults.py

@@ -101,6 +101,7 @@
 
     # Addons
     'addons.osfstorage',
+    'addons.azureblobstorage',
     'addons.bitbucket',
     'addons.boa',
     'addons.box',