github.com/minio/mc@v0.0.0-20240503112107-b471de8d1882/cmd/client-s3-trace_v2.go (about)

     1  // Copyright (c) 2015-2022 MinIO, Inc.
     2  //
     3  // This file is part of MinIO Object Storage stack
     4  //
     5  // This program is free software: you can redistribute it and/or modify
     6  // it under the terms of the GNU Affero General Public License as published by
     7  // the Free Software Foundation, either version 3 of the License, or
     8  // (at your option) any later version.
     9  //
    10  // This program is distributed in the hope that it will be useful
    11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13  // GNU Affero General Public License for more details.
    14  //
    15  // You should have received a copy of the GNU Affero General Public License
    16  // along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17  
    18  package cmd
    19  
    20  import (
    21  	"net/http"
    22  	"net/http/httputil"
    23  	"strings"
    24  
    25  	"github.com/minio/mc/pkg/httptracer"
    26  	"github.com/minio/pkg/v2/console"
    27  )
    28  
    29  // traceV2 - tracing structure for signature version '2'.
    30  type traceV2 struct{}
    31  
    32  // newTraceV2 - initialize Trace structure
    33  func newTraceV2() httptracer.HTTPTracer {
    34  	return traceV2{}
    35  }
    36  
    37  // Request - Trace HTTP Request
    38  func (t traceV2) Request(req *http.Request) (err error) {
    39  	origAuth := req.Header.Get("Authorization")
    40  
    41  	if strings.TrimSpace(origAuth) != "" {
    42  		// Authorization (S3 v2 signature) Format:
    43  		// Authorization: AWS AKIAJVA5BMMU2RHO6IO1:Y10YHUZ0DTUterAUI6w3XKX7Iqk=
    44  
    45  		// Set a temporary redacted auth
    46  		req.Header.Set("Authorization", "AWS **REDACTED**:**REDACTED**")
    47  
    48  		var reqTrace []byte
    49  		reqTrace, err = httputil.DumpRequestOut(req, false) // Only display header
    50  		if err == nil {
    51  			console.Debug(string(reqTrace))
    52  		}
    53  
    54  		// Undo
    55  		req.Header.Set("Authorization", origAuth)
    56  	}
    57  	return err
    58  }
    59  
    60  // Response - Trace HTTP Response
    61  func (t traceV2) Response(resp *http.Response) (err error) {
    62  	var respTrace []byte
    63  	// For errors we make sure to dump response body as well.
    64  	if resp.StatusCode != http.StatusOK &&
    65  		resp.StatusCode != http.StatusPartialContent &&
    66  		resp.StatusCode != http.StatusNoContent {
    67  		respTrace, err = httputil.DumpResponse(resp, true)
    68  	} else {
    69  		respTrace, err = httputil.DumpResponse(resp, false)
    70  	}
    71  	if err == nil {
    72  		console.Debug(string(respTrace))
    73  	}
    74  
    75  	if resp.TLS != nil {
    76  		printTLSCertInfo(resp.TLS)
    77  	}
    78  
    79  	return err
    80  }