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Removed some unused log classes.

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This commit is contained in:
Greyson Parrelli 2022-11-27 14:18:59 -05:00 • committed by Cody Henthorne
parent 504b7ad5b3
commit e0b89bedd4
2 changed files with 0 additions and 150 deletions
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13
core-util/src/main/java/org/signal/core/util/logging/GrowingBuffer.java
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@ -1,13 +0,0 @@
package org.signal.core.util.logging;
public class GrowingBuffer {
private byte[] buffer;
public byte[] get(int minLength) {
if (buffer == null || buffer.length < minLength) {
buffer = new byte[minLength];
}
return buffer;
}
}

137
core-util/src/main/java/org/signal/core/util/logging/LogFile.java
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@ -1,137 +0,0 @@
package org.signal.core.util.logging;
import androidx.annotation.NonNull;
import org.signal.core.util.Conversions;
import org.signal.core.util.StreamUtil;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.EOFException;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.ShortBufferException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
class LogFile {
public static class Writer {
private final byte[] ivBuffer = new byte[16];
private final GrowingBuffer ciphertextBuffer = new GrowingBuffer();
private final byte[] secret;
private final File file;
private final Cipher cipher;
private final BufferedOutputStream outputStream;
Writer(@NonNull byte[] secret, @NonNull File file) throws IOException {
this.secret = secret;
this.file = file;
this.outputStream = new BufferedOutputStream(new FileOutputStream(file, true));
try {
this.cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
} catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
throw new AssertionError(e);
}
}
void writeEntry(@NonNull String entry) throws IOException {
new SecureRandom().nextBytes(ivBuffer);
byte[] plaintext = entry.getBytes();
try {
cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(secret, "AES"), new IvParameterSpec(ivBuffer));
int cipherLength = cipher.getOutputSize(plaintext.length);
byte[] ciphertext = ciphertextBuffer.get(cipherLength);
cipherLength = cipher.doFinal(plaintext, 0, plaintext.length, ciphertext);
outputStream.write(ivBuffer);
outputStream.write(Conversions.intToByteArray(cipherLength));
outputStream.write(ciphertext, 0, cipherLength);
outputStream.flush();
} catch (ShortBufferException | InvalidAlgorithmParameterException | InvalidKeyException | BadPaddingException | IllegalBlockSizeException e) {
throw new AssertionError(e);
}
}
long getLogSize() {
return file.length();
}
void close() {
StreamUtil.close(outputStream);
}
}
static class Reader {
private final byte[] ivBuffer = new byte[16];
private final byte[] intBuffer = new byte[4];
private final GrowingBuffer ciphertextBuffer = new GrowingBuffer();
private final byte[] secret;
private final Cipher cipher;
private final BufferedInputStream inputStream;
Reader(@NonNull byte[] secret, @NonNull File file) throws IOException {
this.secret = secret;
this.inputStream = new BufferedInputStream(new FileInputStream(file));
try {
this.cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
} catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
throw new AssertionError(e);
}
}
String readAll() throws IOException {
StringBuilder builder = new StringBuilder();
String entry;
while ((entry = readEntry()) != null) {
builder.append(entry).append('\n');
}
return builder.toString();
}
private String readEntry() throws IOException {
try {
StreamUtil.readFully(inputStream, ivBuffer);
StreamUtil.readFully(inputStream, intBuffer);
int length = Conversions.byteArrayToInt(intBuffer);
byte[] ciphertext = ciphertextBuffer.get(length);
StreamUtil.readFully(inputStream, ciphertext, length);
try {
cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(secret, "AES"), new IvParameterSpec(ivBuffer));
byte[] plaintext = cipher.doFinal(ciphertext, 0, length);
return new String(plaintext);
} catch (InvalidKeyException | InvalidAlgorithmParameterException | IllegalBlockSizeException | BadPaddingException e) {
throw new AssertionError(e);
}
} catch (EOFException e) {
return null;
}
}
}
}