Files
ctf/2024/insomnihack/mobile/Notes/smali/kotlin/io/encoding/DecodeInputStream.smali
2025-06-06 03:13:31 +02:00

702 lines
17 KiB
Smali

.class final Lkotlin/io/encoding/DecodeInputStream;
.super Ljava/io/InputStream;
.source "Base64IOStream.kt"
# annotations
.annotation runtime Lkotlin/Metadata;
d1 = {
"\u00002\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\u0008\u0002\n\u0002\u0018\u0002\n\u0002\u0008\u0002\n\u0002\u0010\u0012\n\u0000\n\u0002\u0010\u0008\n\u0002\u0008\u0005\n\u0002\u0010\u000b\n\u0002\u0008\u0004\n\u0002\u0010\u0002\n\u0002\u0008\u000f\u0008\u0003\u0018\u00002\u00020\u0001B\u0015\u0012\u0006\u0010\u0002\u001a\u00020\u0001\u0012\u0006\u0010\u0003\u001a\u00020\u0004\u00a2\u0006\u0002\u0010\u0005J\u0008\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\u0008\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\u0008\u0010 \u001a\u00020\tH\u0002J\u0008\u0010!\u001a\u00020\u0014H\u0002J\u0008\u0010\"\u001a\u00020\u0014H\u0002R\u000e\u0010\u0003\u001a\u00020\u0004X\u0082\u0004\u00a2\u0006\u0002\n\u0000R\u000e\u0010\u0006\u001a\u00020\u0007X\u0082\u0004\u00a2\u0006\u0002\n\u0000R\u000e\u0010\u0008\u001a\u00020\tX\u0082\u000e\u00a2\u0006\u0002\n\u0000R\u0014\u0010\n\u001a\u00020\t8BX\u0082\u0004\u00a2\u0006\u0006\u001a\u0004\u0008\u000b\u0010\u000cR\u000e\u0010\r\u001a\u00020\tX\u0082\u000e\u00a2\u0006\u0002\n\u0000R\u000e\u0010\u0002\u001a\u00020\u0001X\u0082\u0004\u00a2\u0006\u0002\n\u0000R\u000e\u0010\u000e\u001a\u00020\u000fX\u0082\u000e\u00a2\u0006\u0002\n\u0000R\u000e\u0010\u0010\u001a\u00020\u000fX\u0082\u000e\u00a2\u0006\u0002\n\u0000R\u000e\u0010\u0011\u001a\u00020\u0007X\u0082\u0004\u00a2\u0006\u0002\n\u0000R\u000e\u0010\u0012\u001a\u00020\u0007X\u0082\u0004\u00a2\u0006\u0002\n\u0000\u00a8\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",
"offset",
"readNextSymbol",
"resetByteBufferIfEmpty",
"shiftByteBufferToStartIfNeeded",
"kotlin-stdlib"
}
k = 0x1
mv = {
0x1,
0x8,
0x0
}
xi = 0x30
.end annotation
# instance fields
.field private final base64:Lkotlin/io/encoding/Base64;
.field private final byteBuffer:[B
.field private byteBufferEndIndex:I
.field private byteBufferStartIndex:I
.field private final input:Ljava/io/InputStream;
.field private isClosed:Z
.field private isEOF:Z
.field private final singleByteBuffer:[B
.field private final symbolBuffer:[B
# direct methods
.method public constructor <init>(Ljava/io/InputStream;Lkotlin/io/encoding/Base64;)V
.locals 1
const-string v0, "input"
invoke-static {p1, v0}, Lkotlin/jvm/internal/Intrinsics;->checkNotNullParameter(Ljava/lang/Object;Ljava/lang/String;)V
const-string v0, "base64"
invoke-static {p2, v0}, Lkotlin/jvm/internal/Intrinsics;->checkNotNullParameter(Ljava/lang/Object;Ljava/lang/String;)V
.line 67
invoke-direct {p0}, Ljava/io/InputStream;-><init>()V
.line 65
iput-object p1, p0, Lkotlin/io/encoding/DecodeInputStream;->input:Ljava/io/InputStream;
.line 66
iput-object p2, p0, Lkotlin/io/encoding/DecodeInputStream;->base64:Lkotlin/io/encoding/Base64;
const/4 p1, 0x1
.line 70
new-array p1, p1, [B
iput-object p1, p0, Lkotlin/io/encoding/DecodeInputStream;->singleByteBuffer:[B
const/16 p1, 0x400
.line 72
new-array p2, p1, [B
iput-object p2, p0, Lkotlin/io/encoding/DecodeInputStream;->symbolBuffer:[B
.line 74
new-array p1, p1, [B
iput-object p1, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBuffer:[B
return-void
.end method
.method private final copyByteBufferInto([BII)V
.locals 3
.line 173
iget-object v0, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBuffer:[B
.line 176
iget v1, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferStartIndex:I
add-int v2, v1, p3
.line 173
invoke-static {v0, p1, p2, v1, v2}, Lkotlin/collections/ArraysKt;->copyInto([B[BIII)[B
.line 179
iget p1, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferStartIndex:I
add-int/2addr p1, p3
iput p1, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferStartIndex:I
.line 180
invoke-direct {p0}, Lkotlin/io/encoding/DecodeInputStream;->resetByteBufferIfEmpty()V
return-void
.end method
.method private final decodeSymbolBufferInto([BIII)I
.locals 7
.line 158
iget v6, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferEndIndex:I
iget-object v0, p0, Lkotlin/io/encoding/DecodeInputStream;->base64:Lkotlin/io/encoding/Base64;
.line 159
iget-object v1, p0, Lkotlin/io/encoding/DecodeInputStream;->symbolBuffer:[B
.line 160
iget-object v2, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBuffer:[B
const/4 v4, 0x0
move v3, v6
move v5, p4
.line 158
invoke-virtual/range {v0 .. v5}, Lkotlin/io/encoding/Base64;->decodeIntoByteArray([B[BIII)I
move-result p4
add-int/2addr v6, p4
iput v6, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferEndIndex:I
.line 166
invoke-direct {p0}, Lkotlin/io/encoding/DecodeInputStream;->getByteBufferLength()I
move-result p4
sub-int/2addr p3, p2
invoke-static {p4, p3}, Ljava/lang/Math;->min(II)I
move-result p3
.line 167
invoke-direct {p0, p1, p2, p3}, Lkotlin/io/encoding/DecodeInputStream;->copyByteBufferInto([BII)V
.line 168
invoke-direct {p0}, Lkotlin/io/encoding/DecodeInputStream;->shiftByteBufferToStartIfNeeded()V
return p3
.end method
.method private final getByteBufferLength()I
.locals 2
.line 78
iget v0, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferEndIndex:I
iget v1, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferStartIndex:I
sub-int/2addr v0, v1
return v0
.end method
.method private final handlePaddingSymbol(I)I
.locals 4
.line 202
iget-object v0, p0, Lkotlin/io/encoding/DecodeInputStream;->symbolBuffer:[B
const/16 v1, 0x3d
aput-byte v1, v0, p1
and-int/lit8 v0, p1, 0x3
const/4 v1, 0x2
if-ne v0, v1, :cond_1
.line 206
invoke-direct {p0}, Lkotlin/io/encoding/DecodeInputStream;->readNextSymbol()I
move-result v0
if-ltz v0, :cond_0
.line 208
iget-object v2, p0, Lkotlin/io/encoding/DecodeInputStream;->symbolBuffer:[B
add-int/lit8 v3, p1, 0x1
int-to-byte v0, v0
aput-byte v0, v2, v3
:cond_0
add-int/2addr p1, v1
goto :goto_0
:cond_1
add-int/lit8 p1, p1, 0x1
:goto_0
return p1
.end method
.method private final readNextSymbol()I
.locals 2
.line 218
iget-object v0, p0, Lkotlin/io/encoding/DecodeInputStream;->base64:Lkotlin/io/encoding/Base64;
invoke-virtual {v0}, Lkotlin/io/encoding/Base64;->isMimeScheme$kotlin_stdlib()Z
move-result v0
if-nez v0, :cond_0
.line 219
iget-object v0, p0, Lkotlin/io/encoding/DecodeInputStream;->input:Ljava/io/InputStream;
invoke-virtual {v0}, Ljava/io/InputStream;->read()I
move-result v0
return v0
.line 224
:cond_0
iget-object v0, p0, Lkotlin/io/encoding/DecodeInputStream;->input:Ljava/io/InputStream;
invoke-virtual {v0}, Ljava/io/InputStream;->read()I
move-result v0
const/4 v1, -0x1
if-eq v0, v1, :cond_1
.line 225
invoke-static {v0}, Lkotlin/io/encoding/Base64Kt;->isInMimeAlphabet(I)Z
move-result v1
if-eqz v1, :cond_0
:cond_1
return v0
.end method
.method private final resetByteBufferIfEmpty()V
.locals 2
.line 184
iget v0, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferStartIndex:I
iget v1, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferEndIndex:I
if-ne v0, v1, :cond_0
const/4 v0, 0x0
.line 185
iput v0, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferStartIndex:I
.line 186
iput v0, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferEndIndex:I
:cond_0
return-void
.end method
.method private final shiftByteBufferToStartIfNeeded()V
.locals 4
.line 192
iget-object v0, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBuffer:[B
array-length v1, v0
iget v2, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferEndIndex:I
sub-int/2addr v1, v2
.line 193
iget-object v3, p0, Lkotlin/io/encoding/DecodeInputStream;->symbolBuffer:[B
array-length v3, v3
div-int/lit8 v3, v3, 0x4
mul-int/lit8 v3, v3, 0x3
if-le v3, v1, :cond_0
.line 195
iget v1, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferStartIndex:I
const/4 v3, 0x0
invoke-static {v0, v0, v3, v1, v2}, Lkotlin/collections/ArraysKt;->copyInto([B[BIII)[B
.line 196
iget v0, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferEndIndex:I
iget v1, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferStartIndex:I
sub-int/2addr v0, v1
iput v0, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferEndIndex:I
.line 197
iput v3, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferStartIndex:I
:cond_0
return-void
.end method
# virtual methods
.method public close()V
.locals 1
.line 149
iget-boolean v0, p0, Lkotlin/io/encoding/DecodeInputStream;->isClosed:Z
if-nez v0, :cond_0
const/4 v0, 0x1
.line 150
iput-boolean v0, p0, Lkotlin/io/encoding/DecodeInputStream;->isClosed:Z
.line 151
iget-object v0, p0, Lkotlin/io/encoding/DecodeInputStream;->input:Ljava/io/InputStream;
invoke-virtual {v0}, Ljava/io/InputStream;->close()V
:cond_0
return-void
.end method
.method public read()I
.locals 4
.line 81
iget v0, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferStartIndex:I
iget v1, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferEndIndex:I
const/4 v2, 0x1
if-ge v0, v1, :cond_0
.line 82
iget-object v1, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBuffer:[B
aget-byte v1, v1, v0
and-int/lit16 v1, v1, 0xff
add-int/2addr v0, v2
.line 83
iput v0, p0, Lkotlin/io/encoding/DecodeInputStream;->byteBufferStartIndex:I
.line 84
invoke-direct {p0}, Lkotlin/io/encoding/DecodeInputStream;->resetByteBufferIfEmpty()V
return v1
.line 87
:cond_0
iget-object v0, p0, Lkotlin/io/encoding/DecodeInputStream;->singleByteBuffer:[B
const/4 v1, 0x0
invoke-virtual {p0, v0, v1, v2}, Lkotlin/io/encoding/DecodeInputStream;->read([BII)I
move-result v0
const/4 v3, -0x1
if-eq v0, v3, :cond_2
if-ne v0, v2, :cond_1
.line 89
iget-object v0, p0, Lkotlin/io/encoding/DecodeInputStream;->singleByteBuffer:[B
aget-byte v0, v0, v1
and-int/lit16 v3, v0, 0xff
goto :goto_0
:cond_1
new-instance v0, Ljava/lang/IllegalStateException;
.line 90
const-string v1, "Unreachable"
invoke-virtual {v1}, Ljava/lang/Object;->toString()Ljava/lang/String;
move-result-object v1
invoke-direct {v0, v1}, Ljava/lang/IllegalStateException;-><init>(Ljava/lang/String;)V
throw v0
:cond_2
:goto_0
return v3
.end method
.method public read([BII)I
.locals 9
const-string v0, "destination"
invoke-static {p1, v0}, Lkotlin/jvm/internal/Intrinsics;->checkNotNullParameter(Ljava/lang/Object;Ljava/lang/String;)V
if-ltz p2, :cond_b
if-ltz p3, :cond_b
add-int v0, p2, p3
.line 95
array-length v1, p1
if-gt v0, v1, :cond_b
.line 98
iget-boolean v1, p0, Lkotlin/io/encoding/DecodeInputStream;->isClosed:Z
if-nez v1, :cond_a
.line 101
iget-boolean v1, p0, Lkotlin/io/encoding/DecodeInputStream;->isEOF:Z
const/4 v2, -0x1
if-eqz v1, :cond_0
return v2
:cond_0
const/4 v1, 0x0
if-nez p3, :cond_1
return v1
.line 108
:cond_1
invoke-direct {p0}, Lkotlin/io/encoding/DecodeInputStream;->getByteBufferLength()I
move-result v3
if-lt v3, p3, :cond_2
.line 109
invoke-direct {p0, p1, p2, p3}, Lkotlin/io/encoding/DecodeInputStream;->copyByteBufferInto([BII)V
return p3
.line 113
:cond_2
invoke-direct {p0}, Lkotlin/io/encoding/DecodeInputStream;->getByteBufferLength()I
move-result v3
sub-int/2addr p3, v3
add-int/lit8 p3, p3, 0x2
.line 114
div-int/lit8 p3, p3, 0x3
mul-int/lit8 p3, p3, 0x4
move v3, p2
.line 119
:goto_0
iget-boolean v4, p0, Lkotlin/io/encoding/DecodeInputStream;->isEOF:Z
if-nez v4, :cond_8
if-lez p3, :cond_8
.line 121
iget-object v4, p0, Lkotlin/io/encoding/DecodeInputStream;->symbolBuffer:[B
array-length v4, v4
invoke-static {v4, p3}, Ljava/lang/Math;->min(II)I
move-result v4
move v5, v1
.line 123
:goto_1
iget-boolean v6, p0, Lkotlin/io/encoding/DecodeInputStream;->isEOF:Z
if-nez v6, :cond_5
if-ge v5, v4, :cond_5
.line 124
invoke-direct {p0}, Lkotlin/io/encoding/DecodeInputStream;->readNextSymbol()I
move-result v6
const/4 v7, 0x1
if-eq v6, v2, :cond_4
const/16 v8, 0x3d
if-eq v6, v8, :cond_3
.line 132
iget-object v7, p0, Lkotlin/io/encoding/DecodeInputStream;->symbolBuffer:[B
int-to-byte v6, v6
aput-byte v6, v7, v5
add-int/lit8 v5, v5, 0x1
goto :goto_1
.line 128
:cond_3
invoke-direct {p0, v5}, Lkotlin/io/encoding/DecodeInputStream;->handlePaddingSymbol(I)I
move-result v5
.line 129
iput-boolean v7, p0, Lkotlin/io/encoding/DecodeInputStream;->isEOF:Z
goto :goto_1
.line 126
:cond_4
iput-boolean v7, p0, Lkotlin/io/encoding/DecodeInputStream;->isEOF:Z
goto :goto_1
:cond_5
if-nez v6, :cond_7
if-ne v5, v4, :cond_6
goto :goto_2
.line 138
:cond_6
new-instance p1, Ljava/lang/IllegalStateException;
const-string p2, "Check failed."
invoke-virtual {p2}, Ljava/lang/Object;->toString()Ljava/lang/String;
move-result-object p2
invoke-direct {p1, p2}, Ljava/lang/IllegalStateException;-><init>(Ljava/lang/String;)V
throw p1
:cond_7
:goto_2
sub-int/2addr p3, v5
.line 142
invoke-direct {p0, p1, v3, v0, v5}, Lkotlin/io/encoding/DecodeInputStream;->decodeSymbolBufferInto([BIII)I
move-result v4
add-int/2addr v3, v4
goto :goto_0
:cond_8
if-ne v3, p2, :cond_9
if-eqz v4, :cond_9
goto :goto_3
:cond_9
sub-int v2, v3, p2
:goto_3
return v2
.line 99
:cond_a
new-instance p1, Ljava/io/IOException;
const-string p2, "The input stream is closed."
invoke-direct {p1, p2}, Ljava/io/IOException;-><init>(Ljava/lang/String;)V
throw p1
.line 96
:cond_b
new-instance v0, Ljava/lang/IndexOutOfBoundsException;
new-instance v1, Ljava/lang/StringBuilder;
const-string v2, "offset: "
invoke-direct {v1, v2}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V
invoke-virtual {v1, p2}, Ljava/lang/StringBuilder;->append(I)Ljava/lang/StringBuilder;
move-result-object p2
const-string v1, ", length: "
invoke-virtual {p2, v1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;
move-result-object p2
invoke-virtual {p2, p3}, Ljava/lang/StringBuilder;->append(I)Ljava/lang/StringBuilder;
move-result-object p2
const-string p3, ", buffer size: "
invoke-virtual {p2, p3}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;
move-result-object p2
array-length p1, p1
invoke-virtual {p2, p1}, Ljava/lang/StringBuilder;->append(I)Ljava/lang/StringBuilder;
move-result-object p1
invoke-virtual {p1}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;
move-result-object p1
invoke-direct {v0, p1}, Ljava/lang/IndexOutOfBoundsException;-><init>(Ljava/lang/String;)V
throw v0
.end method