mirror of https://github.com/octoleo/restic.git
114 lines
3.4 KiB
Go
114 lines
3.4 KiB
Go
/*
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* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2015 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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"net/http"
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"strconv"
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"strings"
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"time"
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)
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// BucketExists verify if bucket exists and you have permission to access it.
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func (c Client) BucketExists(bucketName string) error {
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if err := isValidBucketName(bucketName); err != nil {
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return err
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}
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req, err := c.newRequest("HEAD", requestMetadata{
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bucketName: bucketName,
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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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resp, err := c.httpClient.Do(req)
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defer closeResponse(resp)
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if err != nil {
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return err
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}
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if resp != nil {
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if resp.StatusCode != http.StatusOK {
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return HTTPRespToErrorResponse(resp, bucketName, "")
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}
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}
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return 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(bucketName, objectName string) (ObjectStat, error) {
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if err := isValidBucketName(bucketName); err != nil {
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return ObjectStat{}, err
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}
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if err := isValidObjectName(objectName); err != nil {
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return ObjectStat{}, err
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}
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// Instantiate a new request.
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req, err := c.newRequest("HEAD", requestMetadata{
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bucketName: bucketName,
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objectName: objectName,
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})
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if err != nil {
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return ObjectStat{}, err
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}
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resp, err := c.httpClient.Do(req)
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defer closeResponse(resp)
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if err != nil {
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return ObjectStat{}, err
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}
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if resp != nil {
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if resp.StatusCode != http.StatusOK {
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return ObjectStat{}, HTTPRespToErrorResponse(resp, bucketName, objectName)
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}
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}
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md5sum := strings.Trim(resp.Header.Get("ETag"), "\"") // trim off the odd double quotes
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size, err := strconv.ParseInt(resp.Header.Get("Content-Length"), 10, 64)
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if err != nil {
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return ObjectStat{}, ErrorResponse{
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Code: "InternalError",
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Message: "Content-Length is invalid. " + reportIssue,
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BucketName: bucketName,
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Key: objectName,
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RequestID: resp.Header.Get("x-amz-request-id"),
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HostID: resp.Header.Get("x-amz-id-2"),
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AmzBucketRegion: resp.Header.Get("x-amz-bucket-region"),
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}
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}
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date, err := time.Parse(http.TimeFormat, resp.Header.Get("Last-Modified"))
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if err != nil {
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return ObjectStat{}, ErrorResponse{
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Code: "InternalError",
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Message: "Last-Modified time format is invalid. " + reportIssue,
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BucketName: bucketName,
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Key: objectName,
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RequestID: resp.Header.Get("x-amz-request-id"),
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HostID: resp.Header.Get("x-amz-id-2"),
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AmzBucketRegion: resp.Header.Get("x-amz-bucket-region"),
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}
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}
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contentType := strings.TrimSpace(resp.Header.Get("Content-Type"))
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if contentType == "" {
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contentType = "application/octet-stream"
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}
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// Save object metadata info.
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var objectStat ObjectStat
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objectStat.ETag = md5sum
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objectStat.Key = objectName
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objectStat.Size = size
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objectStat.LastModified = date
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objectStat.ContentType = contentType
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return objectStat, nil
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}
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