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Replace own Base64 class with Spring's Base64Utils.

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Resolves gh-344.
This commit is contained in:
Mark Paluch
2018-12-09 16:28:18 +01:00
parent 56d4274080
commit 769065a781
3 changed files with 5 additions and 115 deletions
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112
spring-vault-core/src/main/java/org/springframework/vault/support/Base64.java
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@@ -1,112 +0,0 @@
/*
* Copyright 2016-2018 the original author or authors.
*
* 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 org.springframework.vault.support;
class Base64 {
private Base64() {
}
static byte[] decode(String in) {
// Ignore trailing '=' padding and whitespace from the input.
int limit = in.length();
for (; limit > 0; limit--) {
char c = in.charAt(limit - 1);
if (c != '=' && c != '\n' && c != '\r' && c != ' ' && c != '\t') {
break;
}
}
// If the input includes whitespace, this output array will be longer than
// necessary.
byte[] out = new byte[(int) (limit * 6L / 8L)];
int outCount = 0;
int inCount = 0;
int word = 0;
for (int pos = 0; pos < limit; pos++) {
char c = in.charAt(pos);
int bits;
if (c >= 'A' && c <= 'Z') {
// char ASCII value
// A 65 0
// Z 90 25 (ASCII - 65)
bits = c - 65;
}
else if (c >= 'a' && c <= 'z') {
// char ASCII value
// a 97 26
// z 122 51 (ASCII - 71)
bits = c - 71;
}
else if (c >= '0' && c <= '9') {
// char ASCII value
// 0 48 52
// 9 57 61 (ASCII + 4)
bits = c + 4;
}
else if (c == '+' || c == '-') {
bits = 62;
}
else if (c == '/' || c == '_') {
bits = 63;
}
else if (c == '\n' || c == '\r' || c == ' ' || c == '\t') {
continue;
}
else {
return null;
}
// Append this char's 6 bits to the word.
word = (word << 6) | (byte) bits;
// For every 4 chars of input, we accumulate 24 bits of output. Emit 3 bytes.
inCount++;
if (inCount % 4 == 0) {
out[outCount++] = (byte) (word >> 16);
out[outCount++] = (byte) (word >> 8);
out[outCount++] = (byte) word;
}
}
int lastWordChars = inCount % 4;
if (lastWordChars == 1) {
// We read 1 char followed by "===". But 6 bits is a truncated byte! Fail.
return null;
}
else if (lastWordChars == 2) {
// We read 2 chars followed by "==". Emit 1 byte with 8 of those 12 bits.
word = word << 12;
out[outCount++] = (byte) (word >> 16);
}
else if (lastWordChars == 3) {
// We read 3 chars, followed by "=". Emit 2 bytes for 16 of those 18 bits.
word = word << 6;
out[outCount++] = (byte) (word >> 16);
out[outCount++] = (byte) (word >> 8);
}
// If we sized our out array perfectly, we're done.
if (outCount == out.length)
return out;
// Copy the decoded bytes to a new, right-sized array.
byte[] prefix = new byte[outCount];
System.arraycopy(out, 0, prefix, 0, outCount);
return prefix;
}
}

5
spring-vault-core/src/main/java/org/springframework/vault/support/Certificate.java
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@@ -24,6 +24,7 @@ import java.security.cert.X509Certificate;
import com.fasterxml.jackson.annotation.JsonProperty;
import org.springframework.util.Assert;
import org.springframework.util.Base64Utils;
import org.springframework.vault.VaultException;
/**
@@ -102,7 +103,7 @@ public class Certificate {
public X509Certificate getX509Certificate() {
try {
byte[] bytes = Base64.decode(getCertificate());
byte[] bytes = Base64Utils.decodeFromString(getCertificate());
return KeystoreUtil.getCertificate(bytes);
}
catch (IOException | CertificateException e) {
@@ -119,7 +120,7 @@ public class Certificate {
public X509Certificate getX509IssuerCertificate() {
try {
byte[] bytes = Base64.decode(getIssuingCaCertificate());
byte[] bytes = Base64Utils.decodeFromString(getIssuingCaCertificate());
return KeystoreUtil.getCertificate(bytes);
}
catch (IOException | CertificateException e) {

3
spring-vault-core/src/main/java/org/springframework/vault/support/CertificateBundle.java
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@@ -24,6 +24,7 @@ import java.security.spec.KeySpec;
import com.fasterxml.jackson.annotation.JsonProperty;
import org.springframework.util.Assert;
import org.springframework.util.Base64Utils;
import org.springframework.vault.VaultException;
/**
@@ -89,7 +90,7 @@ public class CertificateBundle extends Certificate {
public KeySpec getPrivateKeySpec() {
try {
byte[] bytes = Base64.decode(getPrivateKey());
byte[] bytes = Base64Utils.decodeFromString(getPrivateKey());
return KeystoreUtil.getRSAKeySpec(bytes);
}
catch (IOException e) {