diff options
Diffstat (limited to 'vendor/github.com/minio/minio-go/api-stat.go')
-rw-r--r-- | vendor/github.com/minio/minio-go/api-stat.go | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/vendor/github.com/minio/minio-go/api-stat.go b/vendor/github.com/minio/minio-go/api-stat.go new file mode 100644 index 000000000..976d61241 --- /dev/null +++ b/vendor/github.com/minio/minio-go/api-stat.go @@ -0,0 +1,120 @@ +/* + * Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2015, 2016 Minio, Inc. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package minio + +import ( + "net/http" + "strconv" + "strings" + "time" +) + +// BucketExists verify if bucket exists and you have permission to access it. +func (c Client) BucketExists(bucketName string) (bool, error) { + // Input validation. + if err := isValidBucketName(bucketName); err != nil { + return false, err + } + + // Execute HEAD on bucketName. + resp, err := c.executeMethod("HEAD", requestMetadata{ + bucketName: bucketName, + }) + defer closeResponse(resp) + if err != nil { + if ToErrorResponse(err).Code == "NoSuchBucket" { + return false, nil + } + return false, err + } + if resp != nil { + if resp.StatusCode != http.StatusOK { + return false, httpRespToErrorResponse(resp, bucketName, "") + } + } + return true, nil +} + +// StatObject verifies if object exists and you have permission to access. +func (c Client) StatObject(bucketName, objectName string) (ObjectInfo, error) { + // Input validation. + if err := isValidBucketName(bucketName); err != nil { + return ObjectInfo{}, err + } + if err := isValidObjectName(objectName); err != nil { + return ObjectInfo{}, err + } + + // Execute HEAD on objectName. + resp, err := c.executeMethod("HEAD", requestMetadata{ + bucketName: bucketName, + objectName: objectName, + }) + defer closeResponse(resp) + if err != nil { + return ObjectInfo{}, err + } + if resp != nil { + if resp.StatusCode != http.StatusOK { + return ObjectInfo{}, httpRespToErrorResponse(resp, bucketName, objectName) + } + } + + // Trim off the odd double quotes from ETag in the beginning and end. + md5sum := strings.TrimPrefix(resp.Header.Get("ETag"), "\"") + md5sum = strings.TrimSuffix(md5sum, "\"") + + // Parse content length. + size, err := strconv.ParseInt(resp.Header.Get("Content-Length"), 10, 64) + if err != nil { + return ObjectInfo{}, ErrorResponse{ + Code: "InternalError", + Message: "Content-Length is invalid. " + reportIssue, + BucketName: bucketName, + Key: objectName, + RequestID: resp.Header.Get("x-amz-request-id"), + HostID: resp.Header.Get("x-amz-id-2"), + Region: resp.Header.Get("x-amz-bucket-region"), + } + } + // Parse Last-Modified has http time format. + date, err := time.Parse(http.TimeFormat, resp.Header.Get("Last-Modified")) + if err != nil { + return ObjectInfo{}, ErrorResponse{ + Code: "InternalError", + Message: "Last-Modified time format is invalid. " + reportIssue, + BucketName: bucketName, + Key: objectName, + RequestID: resp.Header.Get("x-amz-request-id"), + HostID: resp.Header.Get("x-amz-id-2"), + Region: resp.Header.Get("x-amz-bucket-region"), + } + } + // Fetch content type if any present. + contentType := strings.TrimSpace(resp.Header.Get("Content-Type")) + if contentType == "" { + contentType = "application/octet-stream" + } + // Save object metadata info. + var objectStat ObjectInfo + objectStat.ETag = md5sum + objectStat.Key = objectName + objectStat.Size = size + objectStat.LastModified = date + objectStat.ContentType = contentType + return objectStat, nil +} |