187 lines
8.7 KiB
Java
187 lines
8.7 KiB
Java
package kotlin.io.encoding;
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import androidx.constraintlayout.core.motion.utils.TypedValues;
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import java.io.IOException;
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import java.io.InputStream;
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import kotlin.Metadata;
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import kotlin.UByte;
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import kotlin.collections.ArraysKt;
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import kotlin.jvm.internal.Intrinsics;
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/* compiled from: Base64IOStream.kt */
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@Metadata(d1 = {"\u00002\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\b\u0002\n\u0002\u0018\u0002\n\u0002\b\u0002\n\u0002\u0010\u0012\n\u0000\n\u0002\u0010\b\n\u0002\b\u0005\n\u0002\u0010\u000b\n\u0002\b\u0004\n\u0002\u0010\u0002\n\u0002\b\u000f\b\u0003\u0018\u00002\u00020\u0001B\u0015\u0012\u0006\u0010\u0002\u001a\u00020\u0001\u0012\u0006\u0010\u0003\u001a\u00020\u0004¢\u0006\u0002\u0010\u0005J\b\u0010\u0013\u001a\u00020\u0014H\u0016J \u0010\u0015\u001a\u00020\u00142\u0006\u0010\u0016\u001a\u00020\u00072\u0006\u0010\u0017\u001a\u00020\t2\u0006\u0010\u0018\u001a\u00020\tH\u0002J(\u0010\u0019\u001a\u00020\t2\u0006\u0010\u0016\u001a\u00020\u00072\u0006\u0010\u0017\u001a\u00020\t2\u0006\u0010\u001a\u001a\u00020\t2\u0006\u0010\u001b\u001a\u00020\tH\u0002J\u0010\u0010\u001c\u001a\u00020\t2\u0006\u0010\u001b\u001a\u00020\tH\u0002J\b\u0010\u001d\u001a\u00020\tH\u0016J \u0010\u001d\u001a\u00020\t2\u0006\u0010\u001e\u001a\u00020\u00072\u0006\u0010\u001f\u001a\u00020\t2\u0006\u0010\u0018\u001a\u00020\tH\u0016J\b\u0010 \u001a\u00020\tH\u0002J\b\u0010!\u001a\u00020\u0014H\u0002J\b\u0010\"\u001a\u00020\u0014H\u0002R\u000e\u0010\u0003\u001a\u00020\u0004X\u0082\u0004¢\u0006\u0002\n\u0000R\u000e\u0010\u0006\u001a\u00020\u0007X\u0082\u0004¢\u0006\u0002\n\u0000R\u000e\u0010\b\u001a\u00020\tX\u0082\u000e¢\u0006\u0002\n\u0000R\u0014\u0010\n\u001a\u00020\t8BX\u0082\u0004¢\u0006\u0006\u001a\u0004\b\u000b\u0010\fR\u000e\u0010\r\u001a\u00020\tX\u0082\u000e¢\u0006\u0002\n\u0000R\u000e\u0010\u0002\u001a\u00020\u0001X\u0082\u0004¢\u0006\u0002\n\u0000R\u000e\u0010\u000e\u001a\u00020\u000fX\u0082\u000e¢\u0006\u0002\n\u0000R\u000e\u0010\u0010\u001a\u00020\u000fX\u0082\u000e¢\u0006\u0002\n\u0000R\u000e\u0010\u0011\u001a\u00020\u0007X\u0082\u0004¢\u0006\u0002\n\u0000R\u000e\u0010\u0012\u001a\u00020\u0007X\u0082\u0004¢\u0006\u0002\n\u0000¨\u0006#"}, d2 = {"Lkotlin/io/encoding/DecodeInputStream;", "Ljava/io/InputStream;", "input", "base64", "Lkotlin/io/encoding/Base64;", "(Ljava/io/InputStream;Lkotlin/io/encoding/Base64;)V", "byteBuffer", "", "byteBufferEndIndex", "", "byteBufferLength", "getByteBufferLength", "()I", "byteBufferStartIndex", "isClosed", "", "isEOF", "singleByteBuffer", "symbolBuffer", "close", "", "copyByteBufferInto", "dst", "dstOffset", "length", "decodeSymbolBufferInto", "dstEndIndex", "symbolBufferLength", "handlePaddingSymbol", "read", "destination", TypedValues.CycleType.S_WAVE_OFFSET, "readNextSymbol", "resetByteBufferIfEmpty", "shiftByteBufferToStartIfNeeded", "kotlin-stdlib"}, k = 1, mv = {1, 8, 0}, xi = 48)
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/* loaded from: classes.dex */
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final class DecodeInputStream extends InputStream {
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private final Base64 base64;
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private final byte[] byteBuffer;
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private int byteBufferEndIndex;
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private int byteBufferStartIndex;
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private final InputStream input;
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private boolean isClosed;
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private boolean isEOF;
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private final byte[] singleByteBuffer;
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private final byte[] symbolBuffer;
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private final int getByteBufferLength() {
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return this.byteBufferEndIndex - this.byteBufferStartIndex;
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}
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private final void resetByteBufferIfEmpty() {
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if (this.byteBufferStartIndex == this.byteBufferEndIndex) {
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this.byteBufferStartIndex = 0;
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this.byteBufferEndIndex = 0;
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}
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}
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public DecodeInputStream(InputStream input, Base64 base64) {
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Intrinsics.checkNotNullParameter(input, "input");
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Intrinsics.checkNotNullParameter(base64, "base64");
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this.input = input;
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this.base64 = base64;
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this.singleByteBuffer = new byte[1];
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this.symbolBuffer = new byte[1024];
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this.byteBuffer = new byte[1024];
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}
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@Override // java.io.InputStream
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public int read() {
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int i = this.byteBufferStartIndex;
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if (i < this.byteBufferEndIndex) {
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int i2 = this.byteBuffer[i] & UByte.MAX_VALUE;
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this.byteBufferStartIndex = i + 1;
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resetByteBufferIfEmpty();
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return i2;
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}
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int read = read(this.singleByteBuffer, 0, 1);
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if (read == -1) {
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return -1;
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}
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if (read == 1) {
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return this.singleByteBuffer[0] & UByte.MAX_VALUE;
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}
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throw new IllegalStateException("Unreachable".toString());
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}
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@Override // java.io.InputStream
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public int read(byte[] destination, int offset, int length) {
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int i;
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boolean z;
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boolean z2;
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Intrinsics.checkNotNullParameter(destination, "destination");
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if (offset < 0 || length < 0 || (i = offset + length) > destination.length) {
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throw new IndexOutOfBoundsException("offset: " + offset + ", length: " + length + ", buffer size: " + destination.length);
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}
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if (this.isClosed) {
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throw new IOException("The input stream is closed.");
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}
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if (this.isEOF) {
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return -1;
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}
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if (length == 0) {
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return 0;
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}
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if (getByteBufferLength() >= length) {
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copyByteBufferInto(destination, offset, length);
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return length;
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}
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int byteBufferLength = (((length - getByteBufferLength()) + 2) / 3) * 4;
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int i2 = offset;
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while (true) {
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z = this.isEOF;
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if (z || byteBufferLength <= 0) {
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break;
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}
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int min = Math.min(this.symbolBuffer.length, byteBufferLength);
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int i3 = 0;
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while (true) {
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z2 = this.isEOF;
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if (z2 || i3 >= min) {
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break;
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}
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int readNextSymbol = readNextSymbol();
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if (readNextSymbol == -1) {
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this.isEOF = true;
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} else if (readNextSymbol == 61) {
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i3 = handlePaddingSymbol(i3);
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this.isEOF = true;
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} else {
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this.symbolBuffer[i3] = (byte) readNextSymbol;
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i3++;
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}
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}
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if (!z2 && i3 != min) {
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throw new IllegalStateException("Check failed.".toString());
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}
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byteBufferLength -= i3;
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i2 += decodeSymbolBufferInto(destination, i2, i, i3);
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}
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if (i2 == offset && z) {
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return -1;
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}
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return i2 - offset;
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}
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@Override // java.io.InputStream, java.io.Closeable, java.lang.AutoCloseable
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public void close() {
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if (this.isClosed) {
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return;
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}
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this.isClosed = true;
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this.input.close();
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}
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private final int decodeSymbolBufferInto(byte[] dst, int dstOffset, int dstEndIndex, int symbolBufferLength) {
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int i = this.byteBufferEndIndex;
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this.byteBufferEndIndex = i + this.base64.decodeIntoByteArray(this.symbolBuffer, this.byteBuffer, i, 0, symbolBufferLength);
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int min = Math.min(getByteBufferLength(), dstEndIndex - dstOffset);
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copyByteBufferInto(dst, dstOffset, min);
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shiftByteBufferToStartIfNeeded();
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return min;
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}
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private final void copyByteBufferInto(byte[] dst, int dstOffset, int length) {
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byte[] bArr = this.byteBuffer;
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int i = this.byteBufferStartIndex;
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ArraysKt.copyInto(bArr, dst, dstOffset, i, i + length);
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this.byteBufferStartIndex += length;
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resetByteBufferIfEmpty();
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}
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private final void shiftByteBufferToStartIfNeeded() {
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byte[] bArr = this.byteBuffer;
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int length = bArr.length;
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int i = this.byteBufferEndIndex;
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if ((this.symbolBuffer.length / 4) * 3 > length - i) {
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ArraysKt.copyInto(bArr, bArr, 0, this.byteBufferStartIndex, i);
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this.byteBufferEndIndex -= this.byteBufferStartIndex;
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this.byteBufferStartIndex = 0;
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}
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}
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private final int handlePaddingSymbol(int symbolBufferLength) {
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this.symbolBuffer[symbolBufferLength] = Base64.padSymbol;
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if ((symbolBufferLength & 3) != 2) {
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return symbolBufferLength + 1;
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}
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int readNextSymbol = readNextSymbol();
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if (readNextSymbol >= 0) {
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this.symbolBuffer[symbolBufferLength + 1] = (byte) readNextSymbol;
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}
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return symbolBufferLength + 2;
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}
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private final int readNextSymbol() {
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int read;
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if (!this.base64.getIsMimeScheme()) {
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return this.input.read();
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}
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do {
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read = this.input.read();
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if (read == -1) {
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break;
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}
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} while (!Base64Kt.isInMimeAlphabet(read));
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return read;
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}
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}
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