mirror of
https://github.com/superseriousbusiness/gotosocial.git
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9d0df426da
* feat: vendor minio client * feat: introduce storage package with s3 support * feat: serve s3 files directly this saves a lot of bandwith as the files are fetched from the object store directly * fix: use explicit local storage in tests * feat: integrate s3 storage with the main server * fix: add s3 config to cli tests * docs: explicitly set values in example config also adds license header to the storage package * fix: use better http status code on s3 redirect HTTP 302 Found is the best fit, as it signifies that the resource requested was found but not under its presumed URL 307/TemporaryRedirect would mean that this resource is usually located here, not in this case 303/SeeOther indicates that the redirection does not link to the requested resource but to another page * refactor: use context in storage driver interface
86 lines
2.4 KiB
Go
86 lines
2.4 KiB
Go
/*
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* MinIO Go Library for Amazon S3 Compatible Cloud Storage
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* Copyright 2015-2017 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package minio
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import (
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"fmt"
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"io"
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)
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// hookReader hooks additional reader in the source stream. It is
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// useful for making progress bars. Second reader is appropriately
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// notified about the exact number of bytes read from the primary
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// source on each Read operation.
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type hookReader struct {
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source io.Reader
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hook io.Reader
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}
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// Seek implements io.Seeker. Seeks source first, and if necessary
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// seeks hook if Seek method is appropriately found.
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func (hr *hookReader) Seek(offset int64, whence int) (n int64, err error) {
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// Verify for source has embedded Seeker, use it.
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sourceSeeker, ok := hr.source.(io.Seeker)
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if ok {
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n, err = sourceSeeker.Seek(offset, whence)
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if err != nil {
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return 0, err
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}
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}
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// Verify if hook has embedded Seeker, use it.
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hookSeeker, ok := hr.hook.(io.Seeker)
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if ok {
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var m int64
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m, err = hookSeeker.Seek(offset, whence)
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if err != nil {
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return 0, err
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}
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if n != m {
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return 0, fmt.Errorf("hook seeker seeked %d bytes, expected source %d bytes", m, n)
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}
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}
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return n, nil
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}
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// Read implements io.Reader. Always reads from the source, the return
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// value 'n' number of bytes are reported through the hook. Returns
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// error for all non io.EOF conditions.
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func (hr *hookReader) Read(b []byte) (n int, err error) {
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n, err = hr.source.Read(b)
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if err != nil && err != io.EOF {
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return n, err
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}
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// Progress the hook with the total read bytes from the source.
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if _, herr := hr.hook.Read(b[:n]); herr != nil {
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if herr != io.EOF {
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return n, herr
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}
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}
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return n, err
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}
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// newHook returns a io.ReadSeeker which implements hookReader that
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// reports the data read from the source to the hook.
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func newHook(source, hook io.Reader) io.Reader {
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if hook == nil {
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return source
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}
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return &hookReader{source, hook}
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}
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