Android OMH Storage

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Android OMH Storage streamlines the integration of various cloud storage providers into your Android application by offering a unified API for different storage providers. It supports both Google Mobile Services (GMS) and non-GMS configurations, making it easy to incorporate Google Drive, OneDrive, Dropbox, and other supported third-party storage providers.

Features

• 📱 GMS and non-GMS support for all storage providers
• 🖇️ Identical API across all storage providers
• 📦 Official storage provider SDK integration
• 🚀 Easy configuration and setup
• 💨 Lightweight modules

OMH Storage Modules

This is the main directory of the mono-repo for Android OMH Storage. If you're searching for a particular package, please click on the corresponding package link below.

• Core
• Google Drive (GMS)
• Google Drive (non-GMS)
• OneDrive
• Dropbox

Documentation

• Getting Started
• Reference API

Supported functionality

• ✅ - supported
• 🟨 - partially supported
• ❌ - not supported

Features	Google Drive (GMS)	Google Drive (non-GMS)	OneDrive	Dropbox
File listing	✅	✅	✅	✅
File searching	✅	✅	🟨	✅
Folder creation	✅	✅	✅	✅
File creation (by mime type)	✅	✅	❌	❌
File creation (by extension)	❌	❌	✅	✅
File update	✅	✅	✅	✅
File deletion	✅	✅	✅	✅
File permanent deletion	✅	✅	❌	❌
File upload	✅	✅	✅	✅
File download	✅	✅	✅	✅
File export	✅	✅	❌	❌
File metadata	✅	✅	🟨	🟨
File versioning	✅	✅	✅	✅
File permissions	🟨	🟨	🟨	🟨
File URL	✅	✅	✅	✅

File metadata

Show details

OmhStorageEntity.OmhFile

Property	Google Drive (GMS)	Google Drive (non-GMS)	OneDrive	Dropbox
id	✅	✅	✅	✅
name	✅	✅	✅	✅
createdTime	✅	✅	❌	❌
modifiedTime	✅	✅	✅	✅
parentId	✅	✅	✅	✅
mimeType	✅	✅	✅	✅
extension	✅	✅	✅	✅
size	✅	✅	✅	✅

OmhStorageEntity.OmhFolder

Property	Google Drive (GMS)	Google Drive (non-GMS)	OneDrive	Dropbox
id	✅	✅	✅	✅
name	✅	✅	✅	✅
createdTime	✅	✅	❌	❌
modifiedTime	✅	✅	✅	❌
parentId	✅	✅	✅	✅

OmhStorageMetadata.originalMetadata

Storage provider	Type
Google Drive (GMS)	com.google.api.services.drive.model.File
Google Drive (non-GMS)	String
OneDrive	com.microsoft.graph.models.DriveItem
Dropbox	com.dropbox.core.v2.files.Metadata

File versioning

Show details

OmhFileVersion

Property	Google Drive (GMS)	Google Drive (non-GMS)	OneDrive	Dropbox
fieldId	✅	✅	✅	✅
versionId	✅	✅	✅	✅
lastModified	✅	✅	✅	✅

File permissions

Show details

OmhPermission.IdentityPermission

Property	Google Drive (GMS)	Google Drive (non-GMS)	OneDrive	Dropbox
id	✅	✅	✅	🟨
role	✅	✅	✅	✅
isInherited	🟨	🟨	✅	✅
identity	✅	✅	✅	✅

Google Drive: isInherited is present only for shared drive items. Dropbox: id equals to underlying identity ID.

OmhIdentity

Type	Google Drive (GMS)	Google Drive (non-GMS)	OneDrive	Dropbox
User	✅	✅	✅	✅
Group	✅	✅	✅	✅
Domain	✅	✅	❌	❌
Anyone	✅	✅	❌	❌
Device	❌	❌	✅	❌
Application	❌	❌	✅	❌

OmhIdentity.User

Property	Google Drive (GMS)	Google Drive (non-GMS)	OneDrive	Dropbox
id	❌	❌	✅	✅
displayName	✅	✅	✅	🟨
emailAddress	✅	✅	❌	✅
expirationTime	✅	✅	✅	❌
deleted	✅	✅	❌	❌
photoLink	✅	✅	❌	❌
pendingOwner	❌	✅	❌	❌

Dropbox: Invited users without a Dropbox account will not have a displayName.

OmhIdentity.Group

Property	Google Drive (GMS)	Google Drive (non-GMS)	OneDrive	Dropbox
id	❌	❌	✅	✅
displayName	✅	✅	✅	✅
emailAddress	✅	✅	❌	❌
expirationTime	✅	✅	✅	❌
deleted	✅	✅	❌	❌

OmhPermissionRole

Role	Google Drive (GMS)	Google Drive (non-GMS)	OneDrive	Dropbox
OWNER	✅	✅	✅	✅
WRITER	✅	✅	✅	🟨
COMMENTER	✅	✅	❌	✅
READER	✅	✅	✅	🟨

Dropbox:

• Dropbox does not support granting a READER role, although it is documented as available in the API. An exception will be thrown with user message: viewer_no_comment isn’t yet supported
• Dropbox does not support granting a WRITER role to uploaded files. An exception will be thrown with user message: You don’t have permission to perform this action..

OmhPermissionRecipient

Type	Google Drive (GMS)	Google Drive (non-GMS)	OneDrive	Dropbox
User	✅	✅	✅	✅
Group	✅	✅	✅	❌
Domain	✅	✅	❌	❌
Anyone	✅	✅	❌	❌
WithObjectId	❌	❌	✅	✅
WithAlias	❌	❌	✅	❌

Dropbox: to invite Group, use WithObjectId and provide group ID

OmhStorageClient.createPermission

Dropbox: this method returns null when permission is successfully created.

OmhStorageClient.updatePermission

Dropbox: this method returns null when permission is successfully updated.

OmhStorageClient.getWebUrl

Dropbox: a folder needs to be a shared folder to return web URL.

OmhStorageClient.getFilePermissions

Dropbox: a folder needs to be a shared folder to return any permissions, including OWNER permission.

Contributing

• Overview
• Issues
• PRs

License

• See LICENSE