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993acf4475
Add a WebDAV-based folder sharing mechanism that is exposed to local clients at 100.100.100.100:8080 and to remote peers via a new peerapi endpoint at /v0/tailfs. Add the ability to manage folder sharing via the new 'share' CLI sub-command. Updates tailscale/corp#16827 Signed-off-by: Percy Wegmann <percy@tailscale.com>
40 lines
1.0 KiB
Go
40 lines
1.0 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package compositefs
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import (
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"context"
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"os"
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"tailscale.com/tailfs/shared"
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)
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// Mkdir implements webdav.Filesystem. The root of this file system is
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// read-only, so any attempts to make directories within the root will fail
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// with os.ErrPermission. Attempts to make directories within one of the child
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// filesystems will be handled by the respective child.
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func (cfs *CompositeFileSystem) Mkdir(ctx context.Context, name string, perm os.FileMode) error {
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if shared.IsRoot(name) {
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// root directory already exists, consider this okay
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return nil
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}
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pathInfo, err := cfs.pathInfoFor(name)
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if pathInfo.refersToChild {
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// children can't be made
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if pathInfo.child != nil {
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// since child already exists, consider this okay
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return nil
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}
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// since child doesn't exist, return permission error
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return os.ErrPermission
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}
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if err != nil {
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return err
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}
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return pathInfo.child.FS.Mkdir(ctx, pathInfo.pathOnChild, perm)
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}
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