mirror of
https://github.com/gravitational/teleport.git
synced 2026-10-12 02:15:01 +00:00
Edoardo Spadolini
bcffdcbfd6
* Split the approver map away from FileTransferRequest * Move or copy files in session/reexec/sftputils and session/reexec/reexecsftp * Split up copied files and clean up the new session packages * Use custom types for SFTP audit log events * Clean up imports and run sftp in RunAndExit * Finish renaming types and functions * Streamline reexec in main and tests * Add test with the legacy SFTP event implementation
76 lines
1.9 KiB
Go
76 lines
1.9 KiB
Go
/*
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* Teleport
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* Copyright (C) 2023 Gravitational, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package sftp
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import (
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"context"
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"errors"
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"io"
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"io/fs"
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"os"
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)
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// fileStreamReader is a thin wrapper around fs.File with additional streams.
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type fileStreamReader struct {
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ctx context.Context
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streams []io.Reader
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file fs.File
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}
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// Stat returns file stats.
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func (r *fileStreamReader) Stat() (os.FileInfo, error) {
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return r.file.Stat()
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}
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// Read reads the data from a file and passes the read data to all readers.
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// All errors from stream are returned except io.EOF.
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func (r *fileStreamReader) Read(b []byte) (int, error) {
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if err := r.ctx.Err(); err != nil {
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return 0, err
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}
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n, err := r.file.Read(b)
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// Create a copy as not whole buffer can be filled.
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readBuff := b[:n]
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for _, stream := range r.streams {
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if _, innerError := stream.Read(readBuff); innerError != nil {
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// Ignore EOF
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if !errors.Is(err, io.EOF) {
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return 0, innerError
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}
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}
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}
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return n, err
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}
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// cancelWriter implements io.Writer interface with context cancellation.
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type cancelWriter struct {
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ctx context.Context
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stream io.Writer
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}
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func (c *cancelWriter) Write(b []byte) (int, error) {
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if err := c.ctx.Err(); err != nil {
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return 0, err
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}
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return c.stream.Write(b)
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}
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