gateway: Rename gateway files to have "gateway-" prefix (#4207)

2026-07-25 06:56:18 +03:00 · 2017-05-01 10:32:18 -07:00
parent 01f04c717e
commit 6cf6828a4c
8 changed files with 0 additions and 0 deletions
@@ -0,0 +1,185 @@
+/*
+ * Minio Cloud Storage, (C) 2017 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 cmd
+
+import (
+	"encoding/xml"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"strconv"
+	"time"
+
+	"github.com/Azure/azure-sdk-for-go/storage"
+)
+
+// AnonGetBucketInfo - Get bucket metadata from azure anonymously.
+func (a AzureObjects) AnonGetBucketInfo(bucket string) (bucketInfo BucketInfo, err error) {
+	url, err := url.Parse(a.client.GetBlobURL(bucket, ""))
+	if err != nil {
+		return bucketInfo, azureToObjectError(traceError(err))
+	}
+	url.RawQuery = "restype=container"
+	resp, err := http.Head(url.String())
+	if err != nil {
+		return bucketInfo, azureToObjectError(traceError(err), bucket)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return bucketInfo, azureToObjectError(traceError(anonErrToObjectErr(resp.StatusCode, bucket)), bucket)
+	}
+
+	t, err := time.Parse(time.RFC1123, resp.Header.Get("Last-Modified"))
+	if err != nil {
+		return bucketInfo, traceError(err)
+	}
+	bucketInfo = BucketInfo{
+		Name:    bucket,
+		Created: t,
+	}
+	return bucketInfo, nil
+}
+
+// AnonGetObject - SendGET request without authentication.
+// This is needed when clients send GET requests on objects that can be downloaded without auth.
+func (a AzureObjects) AnonGetObject(bucket, object string, startOffset int64, length int64, writer io.Writer) (err error) {
+	u := a.client.GetBlobURL(bucket, object)
+	req, err := http.NewRequest("GET", u, nil)
+	if err != nil {
+		return azureToObjectError(traceError(err), bucket, object)
+	}
+
+	if length > 0 && startOffset > 0 {
+		req.Header.Add("Range", fmt.Sprintf("bytes=%d-%d", startOffset, startOffset+length-1))
+	} else if startOffset > 0 {
+		req.Header.Add("Range", fmt.Sprintf("bytes=%d-", startOffset))
+	}
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return azureToObjectError(traceError(err), bucket, object)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusPartialContent && resp.StatusCode != http.StatusOK {
+		return azureToObjectError(traceError(anonErrToObjectErr(resp.StatusCode, bucket, object)), bucket, object)
+	}
+
+	_, err = io.Copy(writer, resp.Body)
+	return traceError(err)
+}
+
+// AnonGetObjectInfo - Send HEAD request without authentication and convert the
+// result to ObjectInfo.
+func (a AzureObjects) AnonGetObjectInfo(bucket, object string) (objInfo ObjectInfo, err error) {
+	resp, err := http.Head(a.client.GetBlobURL(bucket, object))
+	if err != nil {
+		return objInfo, azureToObjectError(traceError(err), bucket, object)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return objInfo, azureToObjectError(traceError(anonErrToObjectErr(resp.StatusCode, bucket, object)), bucket, object)
+	}
+
+	var contentLength int64
+	contentLengthStr := resp.Header.Get("Content-Length")
+	if contentLengthStr != "" {
+		contentLength, err = strconv.ParseInt(contentLengthStr, 0, 64)
+		if err != nil {
+			return objInfo, azureToObjectError(traceError(errUnexpected), bucket, object)
+		}
+	}
+
+	t, err := time.Parse(time.RFC1123, resp.Header.Get("Last-Modified"))
+	if err != nil {
+		return objInfo, traceError(err)
+	}
+
+	objInfo.ModTime = t
+	objInfo.Bucket = bucket
+	objInfo.UserDefined = make(map[string]string)
+	if resp.Header.Get("Content-Encoding") != "" {
+		objInfo.UserDefined["Content-Encoding"] = resp.Header.Get("Content-Encoding")
+	}
+	objInfo.UserDefined["Content-Type"] = resp.Header.Get("Content-Type")
+	objInfo.MD5Sum = resp.Header.Get("Etag")
+	objInfo.ModTime = t
+	objInfo.Name = object
+	objInfo.Size = contentLength
+	return
+}
+
+// AnonListObjects - Use Azure equivalent ListBlobs.
+func (a AzureObjects) AnonListObjects(bucket, prefix, marker, delimiter string, maxKeys int) (result ListObjectsInfo, err error) {
+	params := storage.ListBlobsParameters{
+		Prefix:     prefix,
+		Marker:     marker,
+		Delimiter:  delimiter,
+		MaxResults: uint(maxKeys),
+	}
+
+	q := azureListBlobsGetParameters(params)
+	q.Set("restype", "container")
+	q.Set("comp", "list")
+
+	url, err := url.Parse(a.client.GetBlobURL(bucket, ""))
+	if err != nil {
+		return result, azureToObjectError(traceError(err))
+	}
+	url.RawQuery = q.Encode()
+
+	resp, err := http.Get(url.String())
+	if err != nil {
+		return result, azureToObjectError(traceError(err))
+	}
+	defer resp.Body.Close()
+
+	var listResp storage.BlobListResponse
+
+	data, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return result, azureToObjectError(traceError(err))
+	}
+	err = xml.Unmarshal(data, &listResp)
+	if err != nil {
+		return result, azureToObjectError(traceError(err))
+	}
+
+	result.IsTruncated = listResp.NextMarker != ""
+	result.NextMarker = listResp.NextMarker
+	for _, object := range listResp.Blobs {
+		t, e := time.Parse(time.RFC1123, object.Properties.LastModified)
+		if e != nil {
+			continue
+		}
+		result.Objects = append(result.Objects, ObjectInfo{
+			Bucket:          bucket,
+			Name:            object.Name,
+			ModTime:         t,
+			Size:            object.Properties.ContentLength,
+			MD5Sum:          object.Properties.Etag,
+			ContentType:     object.Properties.ContentType,
+			ContentEncoding: object.Properties.ContentEncoding,
+		})
+	}
+	result.Prefixes = listResp.BlobPrefixes
+	return result, nil
+}