Documents

Description

Document portal

The document portal allows to make files from the outside world available to sandboxed applications in a controlled way.

Exported files will be made accessible to the application via a fuse filesystem that gets mounted at /run/user/$UID/doc/. The filesystem gets mounted both outside and inside the sandbox, but the view inside the sandbox is restricted to just those files that the application is allowed to access.

Individual files will appear at /run/user/$UID/doc/$DOC_ID/filename, where $DOC_ID is the ID of the file in the document store. It is returned by the org.freedesktop.portal.Documents.Add and org.freedesktop.portal.Documents.AddNamed calls.

The permissions that the application has for a document store entry (see org.freedesktop.portal.Documents.GrantPermissions) are reflected in the POSIX mode bits in the fuse filesystem.

The D-Bus interface for the document portal is available under the bus name org.freedesktop.portal.Documents and the object path /org/freedesktop/portal/documents.

This documentation describes version 5 of this interface.

Properties

org.freedesktop.portal.Documents:version

version readable u

Methods

org.freedesktop.portal.Documents.GetMountPoint

GetMountPoint (
  OUT path ay
)

Returns the path at which the document store fuse filesystem is mounted. This will typically be /run/user/$UID/doc/.

path

the path at which the fuse filesystem is mounted

org.freedesktop.portal.Documents.Add

Add (
  IN o_path_fd h,
  IN reuse_existing b,
  IN persistent b,
  OUT doc_id s
)

Adds a file to the document store. The file is passed in the form of an open file descriptor to prove that the caller has access to the file.

o_path_fd

open file descriptor for the file to add

reuse_existing

whether to reuse an existing document store entry for the file

persistent

whether to add the file only for this session or permanently

doc_id

the ID of the file in the document store

org.freedesktop.portal.Documents.AddNamed

AddNamed (
  IN o_path_parent_fd h,
  IN filename ay,
  IN reuse_existing b,
  IN persistent b,
  OUT doc_id s
)

Creates an entry in the document store for writing a new file.

o_path_parent_fd

open file descriptor for the parent directory

filename

the basename for the file

reuse_existing

whether to reuse an existing document store entry for the file

persistent

whether to add the file only for this session or permanently

doc_id

the ID of the file in the document store

org.freedesktop.portal.Documents.AddFull

AddFull (
  IN o_path_fds ah,
  IN flags u,
  IN app_id s,
  IN permissions as,
  OUT doc_ids as,
  OUT extra_out a{sv}
)

Adds multiple files to the document store. The file is passed in the form of an open file descriptor to prove that the caller has access to the file.

If the as-needed-by-app flag is given, files will only be added to the document store if the application does not already have access to them. For files that are not added to the document store, the doc_ids array will contain an empty string.

Additionally, if app_id is specified, it will be given the permissions listed in org.freedesktop.portal.Documents.GrantPermissions.

The method also returns some extra info that can be used to avoid multiple roundtrips. For now it only contains as “mountpoint”, the fuse mountpoint of the document portal.

This method was added in version 2 of this interface.

Support for exporting directories was added in version 4 of this interface.

o_path_fds

open file descriptors for the files to export

flags

flags, 1 == reuse_existing, 2 == persistent, 4 == as-needed-by-app, 8 = export-directory

app_id

an application ID, or empty string

permissions

the permissions to grant, possible values are ‘read’, ‘write’, ‘grant-permissions’ and ‘delete’

doc_ids

the IDs of the files in the document store

extra_out

org.freedesktop.portal.Documents.AddNamedFull

AddNamedFull (
  IN o_path_fd h,
  IN filename ay,
  IN flags u,
  IN app_id s,
  IN permissions as,
  OUT doc_id s,
  OUT extra_out a{sv}
)

Creates an entry in the document store for writing a new file.

If the as-needed-by-app flag is given, file will only be added to the document store if the application does not already have access to it. For file that is not added to the document store, the doc_id will contain an empty string.

Additionally, if app_id is specified, it will be given the permissions listed in org.freedesktop.portal.Documents.GrantPermissions.

The method also returns some extra info that can be used to avoid multiple roundtrips. For now it only contains as “mountpoint”, the fuse mountpoint of the document portal.

This method was added in version 3 of this interface.

o_path_fd

filename

the basename for the file

flags

flags, 1 == reuse_existing, 2 == persistent, 4 == as-needed-by-app

app_id

an application ID, or empty string

permissions

the permissions to grant, possible values are ‘read’, ‘write’, ‘grant-permissions’ and ‘delete’

doc_id

the ID of the file in the document store

extra_out

org.freedesktop.portal.Documents.GrantPermissions

GrantPermissions (
  IN doc_id s,
  IN app_id s,
  IN permissions as
)

Grants access permissions for a file in the document store to an application.

This call is available inside the sandbox if the application has the grant-permissions permission for the document.

doc_id

the ID of the file in the document store

app_id

the ID of the application to which permissions are granted

permissions

the permissions to grant, possible values are read, write, grant-permissions and delete

org.freedesktop.portal.Documents.RevokePermissions

RevokePermissions (
  IN doc_id s,
  IN app_id s,
  IN permissions as
)

Revokes access permissions for a file in the document store from an application.

This call is available inside the sandbox if the application has the grant-permissions permission for the document.

doc_id

the ID of the file in the document store

app_id

the ID of the application from which permissions are revoked

permissions

the permissions to revoke, possible values are ‘read’, ‘write’, ‘grant-permissions’ and ‘delete’

org.freedesktop.portal.Documents.Delete

Delete (
  IN doc_id s
)

Removes an entry from the document store. The file itself is not deleted.

This call is available inside the sandbox if the application has the delete permission for the document.

doc_id

the ID of the file in the document store

org.freedesktop.portal.Documents.Lookup

Lookup (
  IN filename ay,
  OUT doc_id s
)

Looks up the document ID for a file.

This call is not available inside the sandbox.

filename

a path in the host filesystem

doc_id

the ID of the file in the document store, or ‘’ if the file is not in the document store

org.freedesktop.portal.Documents.Info

Info (
  IN doc_id s,
  OUT path ay,
  OUT apps a{sas}
)

Gets the filesystem path and application permissions for a document store entry.

This call is not available inside the sandbox.

doc_id

the ID of the file in the document store

path

the path for the file in the host filesystem

apps

a dictionary mapping application IDs to the permissions for that application

org.freedesktop.portal.Documents.List

List (
  IN app_id s,
  OUT docs a{say}
)

Lists documents in the document store for an application (or for all applications).

This call is not available inside the sandbox.

app_id

an application ID, or ‘’ to list all documents

docs

a dictionary mapping document IDs to their filesystem path

org.freedesktop.portal.Documents.GetHostPaths

GetHostPaths (
  IN doc_ids as,
  OUT paths a{say}
)

Gets the host filesystem paths for document store entries.

The host filesystem path is also available in the user.document-portal.host-path extended file attribute.

This call is available inside the sandbox, if the application has the read permission for the documents.

This method was added in version 5 of this interface.

doc_ids

the list of IDs of the files in the document store

paths

a dictionary mapping document IDs to the paths in the host filesystem