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c4deb97ed1
* github.com/alecthomas/chroma v0.8.1 -> v0.8.2 Changelog: https://github.com/alecthomas/chroma/releases/tag/v0.8.2 * github.com/blevesearch/bleve v1.0.12 -> v1.0.13 Changelog: https://github.com/blevesearch/bleve/releases/tag/v1.0.13 * github.com/editorconfig/editorconfig-core-go v2.3.8 -> v2.3.9 Changelog: https://github.com/editorconfig/editorconfig-core-go/releases/tag/v2.3.9 * github.com/klauspost/compress v1.11.2 -> v1.11.3 Changelog: https://github.com/klauspost/compress/releases/tag/v1.11.3 * github.com/minio/minio-go v7.0.5 -> v7.0.6 Changelog: https://github.com/minio/minio-go/releases/tag/v7.0.6 Co-authored-by: Lauris BH <lauris@nix.lv>
128 lines
3.9 KiB
Go
Vendored
128 lines
3.9 KiB
Go
Vendored
/*
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* MinIO Go Library for Amazon S3 Compatible Cloud Storage
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* Copyright 2015-2020 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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"context"
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"net/http"
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"net/url"
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"github.com/minio/minio-go/v7/pkg/s3utils"
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)
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// BucketExists verifies if bucket exists and you have permission to access it. Allows for a Context to
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// control cancellations and timeouts.
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func (c Client) BucketExists(ctx context.Context, bucketName string) (bool, error) {
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// Input validation.
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if err := s3utils.CheckValidBucketName(bucketName); err != nil {
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return false, err
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}
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// Execute HEAD on bucketName.
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resp, err := c.executeMethod(ctx, http.MethodHead, requestMetadata{
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bucketName: bucketName,
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contentSHA256Hex: emptySHA256Hex,
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})
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defer closeResponse(resp)
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if err != nil {
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if ToErrorResponse(err).Code == "NoSuchBucket" {
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return false, nil
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}
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return false, err
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}
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if resp != nil {
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resperr := httpRespToErrorResponse(resp, bucketName, "")
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if ToErrorResponse(resperr).Code == "NoSuchBucket" {
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return false, nil
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}
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if resp.StatusCode != http.StatusOK {
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return false, httpRespToErrorResponse(resp, bucketName, "")
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}
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}
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return true, nil
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}
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// StatObject verifies if object exists and you have permission to access.
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func (c Client) StatObject(ctx context.Context, bucketName, objectName string, opts StatObjectOptions) (ObjectInfo, error) {
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// Input validation.
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if err := s3utils.CheckValidBucketName(bucketName); err != nil {
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return ObjectInfo{}, err
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}
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if err := s3utils.CheckValidObjectName(objectName); err != nil {
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return ObjectInfo{}, err
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}
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return c.statObject(ctx, bucketName, objectName, opts)
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}
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// Lower level API for statObject supporting pre-conditions and range headers.
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func (c Client) statObject(ctx context.Context, bucketName, objectName string, opts StatObjectOptions) (ObjectInfo, error) {
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// Input validation.
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if err := s3utils.CheckValidBucketName(bucketName); err != nil {
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return ObjectInfo{}, err
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}
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if err := s3utils.CheckValidObjectName(objectName); err != nil {
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return ObjectInfo{}, err
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}
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headers := opts.Header()
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if opts.Internal.ReplicationDeleteMarker {
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headers.Set(minIOBucketReplicationDeleteMarker, "true")
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}
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urlValues := make(url.Values)
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if opts.VersionID != "" {
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urlValues.Set("versionId", opts.VersionID)
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}
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// Execute HEAD on objectName.
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resp, err := c.executeMethod(ctx, http.MethodHead, requestMetadata{
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bucketName: bucketName,
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objectName: objectName,
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queryValues: urlValues,
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contentSHA256Hex: emptySHA256Hex,
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customHeader: headers,
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})
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defer closeResponse(resp)
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if err != nil {
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return ObjectInfo{}, err
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}
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deleteMarker := resp.Header.Get(amzDeleteMarker) == "true"
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if resp != nil {
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if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusPartialContent {
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if resp.StatusCode == http.StatusBadRequest && opts.VersionID != "" && deleteMarker {
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errResp := ErrorResponse{
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StatusCode: resp.StatusCode,
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Code: "MethodNotAllowed",
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Message: "The specified method is not allowed against this resource.",
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BucketName: bucketName,
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Key: objectName,
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}
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return ObjectInfo{
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VersionID: resp.Header.Get(amzVersionID),
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IsDeleteMarker: deleteMarker,
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}, errResp
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}
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return ObjectInfo{
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VersionID: resp.Header.Get(amzVersionID),
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IsDeleteMarker: deleteMarker,
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}, httpRespToErrorResponse(resp, bucketName, objectName)
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}
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}
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return ToObjectInfo(bucketName, objectName, resp.Header)
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}
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