summaryrefslogtreecommitdiff
path: root/vendor/github.com/minio/minio-go/v7/bucket-cache.go
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/github.com/minio/minio-go/v7/bucket-cache.go')
-rw-r--r--vendor/github.com/minio/minio-go/v7/bucket-cache.go256
1 files changed, 0 insertions, 256 deletions
diff --git a/vendor/github.com/minio/minio-go/v7/bucket-cache.go b/vendor/github.com/minio/minio-go/v7/bucket-cache.go
deleted file mode 100644
index 4e4305acd..000000000
--- a/vendor/github.com/minio/minio-go/v7/bucket-cache.go
+++ /dev/null
@@ -1,256 +0,0 @@
-/*
- * MinIO Go Library for Amazon S3 Compatible Cloud Storage
- * Copyright 2015-2017 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 minio
-
-import (
- "context"
- "net"
- "net/http"
- "net/url"
- "path"
- "sync"
-
- "github.com/minio/minio-go/v7/pkg/credentials"
- "github.com/minio/minio-go/v7/pkg/s3utils"
- "github.com/minio/minio-go/v7/pkg/signer"
-)
-
-// bucketLocationCache - Provides simple mechanism to hold bucket
-// locations in memory.
-type bucketLocationCache struct {
- // mutex is used for handling the concurrent
- // read/write requests for cache.
- sync.RWMutex
-
- // items holds the cached bucket locations.
- items map[string]string
-}
-
-// newBucketLocationCache - Provides a new bucket location cache to be
-// used internally with the client object.
-func newBucketLocationCache() *bucketLocationCache {
- return &bucketLocationCache{
- items: make(map[string]string),
- }
-}
-
-// Get - Returns a value of a given key if it exists.
-func (r *bucketLocationCache) Get(bucketName string) (location string, ok bool) {
- r.RLock()
- defer r.RUnlock()
- location, ok = r.items[bucketName]
- return
-}
-
-// Set - Will persist a value into cache.
-func (r *bucketLocationCache) Set(bucketName, location string) {
- r.Lock()
- defer r.Unlock()
- r.items[bucketName] = location
-}
-
-// Delete - Deletes a bucket name from cache.
-func (r *bucketLocationCache) Delete(bucketName string) {
- r.Lock()
- defer r.Unlock()
- delete(r.items, bucketName)
-}
-
-// GetBucketLocation - get location for the bucket name from location cache, if not
-// fetch freshly by making a new request.
-func (c *Client) GetBucketLocation(ctx context.Context, bucketName string) (string, error) {
- if err := s3utils.CheckValidBucketName(bucketName); err != nil {
- return "", err
- }
- return c.getBucketLocation(ctx, bucketName)
-}
-
-// getBucketLocation - Get location for the bucketName from location map cache, if not
-// fetch freshly by making a new request.
-func (c *Client) getBucketLocation(ctx context.Context, bucketName string) (string, error) {
- if err := s3utils.CheckValidBucketName(bucketName); err != nil {
- return "", err
- }
-
- // Region set then no need to fetch bucket location.
- if c.region != "" {
- return c.region, nil
- }
-
- if location, ok := c.bucketLocCache.Get(bucketName); ok {
- return location, nil
- }
-
- // Initialize a new request.
- req, err := c.getBucketLocationRequest(ctx, bucketName)
- if err != nil {
- return "", err
- }
-
- // Initiate the request.
- resp, err := c.do(req)
- defer closeResponse(resp)
- if err != nil {
- return "", err
- }
- location, err := processBucketLocationResponse(resp, bucketName)
- if err != nil {
- return "", err
- }
- c.bucketLocCache.Set(bucketName, location)
- return location, nil
-}
-
-// processes the getBucketLocation http response from the server.
-func processBucketLocationResponse(resp *http.Response, bucketName string) (bucketLocation string, err error) {
- if resp != nil {
- if resp.StatusCode != http.StatusOK {
- err = httpRespToErrorResponse(resp, bucketName, "")
- errResp := ToErrorResponse(err)
- // For access denied error, it could be an anonymous
- // request. Move forward and let the top level callers
- // succeed if possible based on their policy.
- switch errResp.Code {
- case "NotImplemented":
- switch errResp.Server {
- case "AmazonSnowball":
- return "snowball", nil
- case "cloudflare":
- return "us-east-1", nil
- }
- case "AuthorizationHeaderMalformed":
- fallthrough
- case "InvalidRegion":
- fallthrough
- case "AccessDenied":
- if errResp.Region == "" {
- return "us-east-1", nil
- }
- return errResp.Region, nil
- }
- return "", err
- }
- }
-
- // Extract location.
- var locationConstraint string
- err = xmlDecoder(resp.Body, &locationConstraint)
- if err != nil {
- return "", err
- }
-
- location := locationConstraint
- // Location is empty will be 'us-east-1'.
- if location == "" {
- location = "us-east-1"
- }
-
- // Location can be 'EU' convert it to meaningful 'eu-west-1'.
- if location == "EU" {
- location = "eu-west-1"
- }
-
- // Save the location into cache.
-
- // Return.
- return location, nil
-}
-
-// getBucketLocationRequest - Wrapper creates a new getBucketLocation request.
-func (c *Client) getBucketLocationRequest(ctx context.Context, bucketName string) (*http.Request, error) {
- // Set location query.
- urlValues := make(url.Values)
- urlValues.Set("location", "")
-
- // Set get bucket location always as path style.
- targetURL := *c.endpointURL
-
- // as it works in makeTargetURL method from api.go file
- if h, p, err := net.SplitHostPort(targetURL.Host); err == nil {
- if targetURL.Scheme == "http" && p == "80" || targetURL.Scheme == "https" && p == "443" {
- targetURL.Host = h
- if ip := net.ParseIP(h); ip != nil && ip.To16() != nil {
- targetURL.Host = "[" + h + "]"
- }
- }
- }
-
- isVirtualStyle := c.isVirtualHostStyleRequest(targetURL, bucketName)
-
- var urlStr string
-
- if isVirtualStyle {
- urlStr = c.endpointURL.Scheme + "://" + bucketName + "." + targetURL.Host + "/?location"
- } else {
- targetURL.Path = path.Join(bucketName, "") + "/"
- targetURL.RawQuery = urlValues.Encode()
- urlStr = targetURL.String()
- }
-
- // Get a new HTTP request for the method.
- req, err := http.NewRequestWithContext(ctx, http.MethodGet, urlStr, nil)
- if err != nil {
- return nil, err
- }
-
- // Set UserAgent for the request.
- c.setUserAgent(req)
-
- // Get credentials from the configured credentials provider.
- value, err := c.credsProvider.GetWithContext(c.CredContext())
- if err != nil {
- return nil, err
- }
-
- var (
- signerType = value.SignerType
- accessKeyID = value.AccessKeyID
- secretAccessKey = value.SecretAccessKey
- sessionToken = value.SessionToken
- )
-
- // Custom signer set then override the behavior.
- if c.overrideSignerType != credentials.SignatureDefault {
- signerType = c.overrideSignerType
- }
-
- // If signerType returned by credentials helper is anonymous,
- // then do not sign regardless of signerType override.
- if value.SignerType == credentials.SignatureAnonymous {
- signerType = credentials.SignatureAnonymous
- }
-
- if signerType.IsAnonymous() {
- return req, nil
- }
-
- if signerType.IsV2() {
- req = signer.SignV2(*req, accessKeyID, secretAccessKey, isVirtualStyle)
- return req, nil
- }
-
- // Set sha256 sum for signature calculation only with signature version '4'.
- contentSha256 := emptySHA256Hex
- if c.secure {
- contentSha256 = unsignedPayload
- }
-
- req.Header.Set("X-Amz-Content-Sha256", contentSha256)
- req = signer.SignV4(*req, accessKeyID, secretAccessKey, sessionToken, "us-east-1")
- return req, nil
-}