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//
// Copyright (c) 2015-2024 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
package madmin
import (
"io"
"net"
"net/http"
"net/url"
"strings"
"time"
"github.com/minio/minio-go/v7/pkg/s3utils"
)
//msgp:clearomitted
//msgp:tag json
//go:generate msgp
// AdminAPIVersion - admin api version used in the request.
const (
AdminAPIVersion = "v3"
AdminAPIVersionV2 = "v2"
adminAPIPrefix = "/" + AdminAPIVersion
kmsAPIVersion = "v1"
kmsAPIPrefix = "/" + kmsAPIVersion
)
// getEndpointURL - construct a new endpoint.
func getEndpointURL(endpoint string, secure bool) (*url.URL, error) {
if strings.Contains(endpoint, ":") {
host, _, err := net.SplitHostPort(endpoint)
if err != nil {
return nil, err
}
if !s3utils.IsValidIP(host) && !s3utils.IsValidDomain(host) {
msg := "Endpoint: " + endpoint + " does not follow ip address or domain name standards."
return nil, ErrInvalidArgument(msg)
}
} else {
if !s3utils.IsValidIP(endpoint) && !s3utils.IsValidDomain(endpoint) {
msg := "Endpoint: " + endpoint + " does not follow ip address or domain name standards."
return nil, ErrInvalidArgument(msg)
}
}
// If secure is false, use 'http' scheme.
scheme := "https"
if !secure {
scheme = "http"
}
// Strip the obvious :443 and :80 from the endpoint
// to avoid the signature mismatch error.
if secure && strings.HasSuffix(endpoint, ":443") {
endpoint = strings.TrimSuffix(endpoint, ":443")
}
if !secure && strings.HasSuffix(endpoint, ":80") {
endpoint = strings.TrimSuffix(endpoint, ":80")
}
// Construct a secured endpoint URL.
endpointURLStr := scheme + "://" + endpoint
endpointURL, err := url.Parse(endpointURLStr)
if err != nil {
return nil, err
}
// Validate incoming endpoint URL.
if err := isValidEndpointURL(endpointURL.String()); err != nil {
return nil, err
}
return endpointURL, nil
}
// Verify if input endpoint URL is valid.
func isValidEndpointURL(endpointURL string) error {
if endpointURL == "" {
return ErrInvalidArgument("Endpoint url cannot be empty.")
}
url, err := url.Parse(endpointURL)
if err != nil {
return ErrInvalidArgument("Endpoint url cannot be parsed.")
}
if url.Path != "/" && url.Path != "" {
return ErrInvalidArgument("Endpoint url cannot have fully qualified paths.")
}
return nil
}
// closeResponse close non nil response with any response Body.
// convenient wrapper to drain any remaining data on response body.
//
// Subsequently this allows golang http RoundTripper
// to re-use the same connection for future requests.
func closeResponse(resp *http.Response) {
// Callers should close resp.Body when done reading from it.
// If resp.Body is not closed, the Client's underlying RoundTripper
// (typically Transport) may not be able to re-use a persistent TCP
// connection to the server for a subsequent "keep-alive" request.
if resp != nil && resp.Body != nil {
// Drain any remaining Body and then close the connection.
// Without this closing connection would disallow re-using
// the same connection for future uses.
// - http://stackoverflow.com/a/17961593/4465767
io.Copy(io.Discard, resp.Body)
resp.Body.Close()
}
}
// TimedAction contains a number of actions and their accumulated duration in nanoseconds.
type TimedAction struct {
Count uint64 `json:"count"`
AccTime uint64 `json:"acc_time_ns"`
MinTime uint64 `json:"min_ns,omitempty"`
MaxTime uint64 `json:"max_ns,omitempty"`
Bytes uint64 `json:"bytes,omitempty"`
}
// Avg returns the average time spent on the action.
func (t TimedAction) Avg() time.Duration {
if t.Count == 0 {
return 0
}
return time.Duration(t.AccTime / t.Count)
}
// AvgBytes returns the average time spent on the action.
func (t TimedAction) AvgBytes() uint64 {
if t.Count == 0 {
return 0
}
return t.Bytes / t.Count
}
// Merge other into t.
func (t *TimedAction) Merge(other TimedAction) {
t.Count += other.Count
t.AccTime += other.AccTime
t.Bytes += other.Bytes
if t.Count == 0 {
t.MinTime = other.MinTime
}
if other.Count > 0 {
t.MinTime = min(t.MinTime, other.MinTime)
}
t.MaxTime = max(t.MaxTime, other.MaxTime)
}
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