minio/cmd/streaming-signature-v4_test.go

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// Copyright (c) 2015-2021 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 cmd
import (
"bufio"
"bytes"
"fmt"
"io"
"strings"
"testing"
)
// Test read chunk line.
func TestReadChunkLine(t *testing.T) {
type testCase struct {
reader *bufio.Reader
expectedErr error
chunkSize []byte
chunkSignature []byte
}
// List of readers used.
readers := []io.Reader{
// Test - 1
bytes.NewReader([]byte("1000;chunk-signature=111123333333333333334444211\r\n")),
// Test - 2
bytes.NewReader([]byte("1000;")),
// Test - 3
bytes.NewReader([]byte(fmt.Sprintf("%4097d", 1))),
// Test - 4
bytes.NewReader([]byte("1000;chunk-signature=111123333333333333334444211\r\n")),
}
testCases := []testCase{
// Test - 1 - small bufio reader.
{
bufio.NewReaderSize(readers[0], 16),
errLineTooLong,
nil,
nil,
},
// Test - 2 - unexpected end of the reader.
{
bufio.NewReader(readers[1]),
io.ErrUnexpectedEOF,
nil,
nil,
},
// Test - 3 - line too long bigger than 4k+1
{
bufio.NewReader(readers[2]),
errLineTooLong,
nil,
nil,
},
// Test - 4 - parse the chunk reader properly.
{
bufio.NewReader(readers[3]),
nil,
[]byte("1000"),
[]byte("111123333333333333334444211"),
},
}
// Valid test cases for each chunk line.
for i, tt := range testCases {
chunkSize, chunkSignature, err := readChunkLine(tt.reader)
if err != tt.expectedErr {
t.Errorf("Test %d: Expected %s, got %s", i+1, tt.expectedErr, err)
}
if !bytes.Equal(chunkSize, tt.chunkSize) {
t.Errorf("Test %d: Expected %s, got %s", i+1, string(tt.chunkSize), string(chunkSize))
}
if !bytes.Equal(chunkSignature, tt.chunkSignature) {
t.Errorf("Test %d: Expected %s, got %s", i+1, string(tt.chunkSignature), string(chunkSignature))
}
}
}
// Test parsing s3 chunk extension.
func TestParseS3ChunkExtension(t *testing.T) {
type testCase struct {
buf []byte
chunkSize []byte
chunkSign []byte
}
tests := []testCase{
// Test - 1 valid case.
{
[]byte("10000;chunk-signature=ad80c730a21e5b8d04586a2213dd63b9a0e99e0e2307b0ade35a65485a288648"),
[]byte("10000"),
[]byte("ad80c730a21e5b8d04586a2213dd63b9a0e99e0e2307b0ade35a65485a288648"),
},
// Test - 2 no chunk extension, return same buffer.
{
[]byte("10000;"),
[]byte("10000;"),
nil,
},
// Test - 3 no chunk size, return error.
{
[]byte(";chunk-signature="),
nil,
nil,
},
// Test - 4 removes trailing slash.
{
[]byte("10000;chunk-signature=ad80c730a21e5b8d04586a2213dd63b9a0e99e0e2307b0ade35a65485a288648 \t \n"),
[]byte("10000"),
[]byte("ad80c730a21e5b8d04586a2213dd63b9a0e99e0e2307b0ade35a65485a288648"),
},
}
// Validate chunk extension removal.
for i, tt := range tests {
// Extract chunk size and chunk signature after parsing a standard chunk-extension format.
hexChunkSize, hexChunkSignature := parseS3ChunkExtension(tt.buf)
if !bytes.Equal(hexChunkSize, tt.chunkSize) {
t.Errorf("Test %d: Expected %s, got %s", i+1, string(tt.chunkSize), string(hexChunkSize))
}
if !bytes.Equal(hexChunkSignature, tt.chunkSign) {
t.Errorf("Test %d: Expected %s, got %s", i+1, string(tt.chunkSign), string(hexChunkSignature))
}
}
}
// Test read CRLF characters on input reader.
func TestReadCRLF(t *testing.T) {
type testCase struct {
reader io.Reader
expectedErr error
}
tests := []testCase{
// Test - 1 valid buffer with CRLF.
{bytes.NewReader([]byte("\r\n")), nil},
// Test - 2 invalid buffer with no CRLF.
{bytes.NewReader([]byte("he")), errMalformedEncoding},
// Test - 3 invalid buffer with more characters.
{bytes.NewReader([]byte("he\r\n")), errMalformedEncoding},
// Test - 4 smaller buffer than expected.
{bytes.NewReader([]byte("h")), io.ErrUnexpectedEOF},
}
for i, tt := range tests {
err := readCRLF(tt.reader)
if err != tt.expectedErr {
t.Errorf("Test %d: Expected %s, got %s this", i+1, tt.expectedErr, err)
}
}
}
// Tests parsing hex number into its uint64 decimal equivalent.
func TestParseHexUint(t *testing.T) {
type testCase struct {
in string
want uint64
wantErr string
}
tests := []testCase{
{"x", 0, "invalid byte in chunk length"},
{"0000000000000000", 0, ""},
{"0000000000000001", 1, ""},
{"ffffffffffffffff", 1<<64 - 1, ""},
{"FFFFFFFFFFFFFFFF", 1<<64 - 1, ""},
{"000000000000bogus", 0, "invalid byte in chunk length"},
{"00000000000000000", 0, "http chunk length too large"}, // could accept if we wanted
{"10000000000000000", 0, "http chunk length too large"},
{"00000000000000001", 0, "http chunk length too large"}, // could accept if we wanted
}
for i := uint64(0); i <= 1234; i++ {
tests = append(tests, testCase{in: fmt.Sprintf("%x", i), want: i})
}
for _, tt := range tests {
got, err := parseHexUint([]byte(tt.in))
if tt.wantErr != "" {
if err != nil && !strings.Contains(err.Error(), tt.wantErr) {
t.Errorf("parseHexUint(%q) = %v, %v; want error %q", tt.in, got, err, tt.wantErr)
}
} else {
if err != nil || got != tt.want {
t.Errorf("parseHexUint(%q) = %v, %v; want %v", tt.in, got, err, tt.want)
}
}
}
}