Base64Util.smali

.class public Lsg/bigo/sdk/blivestat/utils/Base64Util;
.super Ljava/lang/Object;
.source "SourceFile"


# static fields
.field private static final legalChars:[C


# direct methods
.method static constructor <clinit>()V
    .registers 1

    const-string v0, "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"

    .line 14
    invoke-virtual {v0}, Ljava/lang/String;->toCharArray()[C

    move-result-object v0

    sput-object v0, Lsg/bigo/sdk/blivestat/utils/Base64Util;->legalChars:[C

    return-void
.end method

.method public constructor <init>()V
    .registers 1

    .line 11
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    return-void
.end method

.method private static decode(C)I
    .registers 3

    const/16 v0, 0x41

    if-lt p0, v0, :cond_a

    const/16 v1, 0x5a

    if-gt p0, v1, :cond_a

    sub-int/2addr p0, v0

    return p0

    :cond_a
    const/16 v0, 0x61

    if-lt p0, v0, :cond_16

    const/16 v1, 0x7a

    if-gt p0, v1, :cond_16

    sub-int/2addr p0, v0

    :goto_13
    add-int/lit8 p0, p0, 0x1a

    return p0

    :cond_16
    const/16 v0, 0x30

    if-lt p0, v0, :cond_22

    const/16 v1, 0x39

    if-gt p0, v1, :cond_22

    sub-int/2addr p0, v0

    add-int/lit8 p0, p0, 0x1a

    goto :goto_13

    :cond_22
    const/16 v0, 0x2b

    if-eq p0, v0, :cond_43

    const/16 v0, 0x2f

    if-eq p0, v0, :cond_40

    const/16 v0, 0x3d

    if-ne p0, v0, :cond_30

    const/4 p0, 0x0

    return p0

    .line 133
    :cond_30
    new-instance v0, Ljava/lang/RuntimeException;

    invoke-static {p0}, Ljava/lang/String;->valueOf(C)Ljava/lang/String;

    move-result-object p0

    const-string v1, "unexpected code: "

    invoke-virtual {v1, p0}, Ljava/lang/String;->concat(Ljava/lang/String;)Ljava/lang/String;

    move-result-object p0

    invoke-direct {v0, p0}, Ljava/lang/RuntimeException;-><init>(Ljava/lang/String;)V

    throw v0

    :cond_40
    const/16 p0, 0x3f

    return p0

    :cond_43
    const/16 p0, 0x3e

    return p0
.end method

.method private static decode(Ljava/lang/String;Ljava/io/OutputStream;)V
    .registers 8
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 188
    invoke-virtual {p0}, Ljava/lang/String;->length()I

    move-result v0

    const/4 v1, 0x0

    :goto_5
    if-ge v1, v0, :cond_12

    .line 192
    invoke-virtual {p0, v1}, Ljava/lang/String;->charAt(I)C

    move-result v2

    const/16 v3, 0x20

    if-gt v2, v3, :cond_12

    add-int/lit8 v1, v1, 0x1

    goto :goto_5

    :cond_12
    if-eq v1, v0, :cond_67

    .line 200
    invoke-virtual {p0, v1}, Ljava/lang/String;->charAt(I)C

    move-result v2

    invoke-static {v2}, Lsg/bigo/sdk/blivestat/utils/Base64Util;->decode(C)I

    move-result v2

    shl-int/lit8 v2, v2, 0x12

    add-int/lit8 v3, v1, 0x1

    .line 202
    invoke-virtual {p0, v3}, Ljava/lang/String;->charAt(I)C

    move-result v3

    invoke-static {v3}, Lsg/bigo/sdk/blivestat/utils/Base64Util;->decode(C)I

    move-result v3

    shl-int/lit8 v3, v3, 0xc

    add-int/2addr v2, v3

    add-int/lit8 v3, v1, 0x2

    .line 204
    invoke-virtual {p0, v3}, Ljava/lang/String;->charAt(I)C

    move-result v4

    invoke-static {v4}, Lsg/bigo/sdk/blivestat/utils/Base64Util;->decode(C)I

    move-result v4

    shl-int/lit8 v4, v4, 0x6

    add-int/2addr v2, v4

    add-int/lit8 v4, v1, 0x3

    .line 206
    invoke-virtual {p0, v4}, Ljava/lang/String;->charAt(I)C

    move-result v5

    invoke-static {v5}, Lsg/bigo/sdk/blivestat/utils/Base64Util;->decode(C)I

    move-result v5

    add-int/2addr v2, v5

    shr-int/lit8 v5, v2, 0x10

    and-int/lit16 v5, v5, 0xff

    .line 208
    invoke-virtual {p1, v5}, Ljava/io/OutputStream;->write(I)V

    .line 210
    invoke-virtual {p0, v3}, Ljava/lang/String;->charAt(I)C

    move-result v3

    const/16 v5, 0x3d

    if-eq v3, v5, :cond_67

    shr-int/lit8 v3, v2, 0x8

    and-int/lit16 v3, v3, 0xff

    .line 214
    invoke-virtual {p1, v3}, Ljava/io/OutputStream;->write(I)V

    .line 216
    invoke-virtual {p0, v4}, Ljava/lang/String;->charAt(I)C

    move-result v3

    if-eq v3, v5, :cond_67

    and-int/lit16 v2, v2, 0xff

    .line 220
    invoke-virtual {p1, v2}, Ljava/io/OutputStream;->write(I)V

    add-int/lit8 v1, v1, 0x4

    goto :goto_5

    :cond_67
    return-void
.end method

.method public static decode(Ljava/lang/String;)[B
    .registers 5

    .line 154
    new-instance v0, Ljava/io/ByteArrayOutputStream;

    invoke-direct {v0}, Ljava/io/ByteArrayOutputStream;-><init>()V

    .line 158
    :try_start_5
    invoke-static {p0, v0}, Lsg/bigo/sdk/blivestat/utils/Base64Util;->decode(Ljava/lang/String;Ljava/io/OutputStream;)V
    :try_end_8
    .catch Ljava/io/IOException; {:try_start_5 .. :try_end_8} :catch_29

    .line 166
    invoke-virtual {v0}, Ljava/io/ByteArrayOutputStream;->toByteArray()[B

    move-result-object p0

    .line 170
    :try_start_c
    invoke-virtual {v0}, Ljava/io/ByteArrayOutputStream;->close()V
    :try_end_f
    .catch Ljava/io/IOException; {:try_start_c .. :try_end_f} :catch_10

    goto :goto_28

    :catch_10
    move-exception v0

    .line 176
    sget-object v1, Ljava/lang/System;->err:Ljava/io/PrintStream;

    new-instance v2, Ljava/lang/StringBuilder;

    const-string v3, "Error while decoding BASE64: "

    invoke-direct {v2, v3}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V

    invoke-virtual {v0}, Ljava/io/IOException;->toString()Ljava/lang/String;

    move-result-object v0

    invoke-virtual {v2, v0}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    invoke-virtual {v2}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v0

    invoke-virtual {v1, v0}, Ljava/io/PrintStream;->println(Ljava/lang/String;)V

    :goto_28
    return-object p0

    .line 162
    :catch_29
    new-instance p0, Ljava/lang/RuntimeException;

    invoke-direct {p0}, Ljava/lang/RuntimeException;-><init>()V

    throw p0
.end method

.method public static encode([B)Ljava/lang/String;
    .registers 9

    .line 34
    array-length v0, p0

    .line 36
    new-instance v1, Ljava/lang/StringBuffer;

    array-length v2, p0

    mul-int/lit8 v2, v2, 0x3

    div-int/lit8 v2, v2, 0x2

    invoke-direct {v1, v2}, Ljava/lang/StringBuffer;-><init>(I)V

    add-int/lit8 v2, v0, -0x3

    const/4 v3, 0x0

    const/4 v4, 0x0

    :goto_f
    if-gt v4, v2, :cond_54

    .line 46
    aget-byte v5, p0, v4

    and-int/lit16 v5, v5, 0xff

    shl-int/lit8 v5, v5, 0x10

    add-int/lit8 v6, v4, 0x1

    aget-byte v6, p0, v6

    and-int/lit16 v6, v6, 0xff

    shl-int/lit8 v6, v6, 0x8

    or-int/2addr v5, v6

    add-int/lit8 v6, v4, 0x2

    aget-byte v6, p0, v6

    and-int/lit16 v6, v6, 0xff

    or-int/2addr v5, v6

    .line 52
    sget-object v6, Lsg/bigo/sdk/blivestat/utils/Base64Util;->legalChars:[C

    shr-int/lit8 v7, v5, 0x12

    and-int/lit8 v7, v7, 0x3f

    aget-char v6, v6, v7

    invoke-virtual {v1, v6}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    .line 54
    sget-object v6, Lsg/bigo/sdk/blivestat/utils/Base64Util;->legalChars:[C

    shr-int/lit8 v7, v5, 0xc

    and-int/lit8 v7, v7, 0x3f

    aget-char v6, v6, v7

    invoke-virtual {v1, v6}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    .line 56
    sget-object v6, Lsg/bigo/sdk/blivestat/utils/Base64Util;->legalChars:[C

    shr-int/lit8 v7, v5, 0x6

    and-int/lit8 v7, v7, 0x3f

    aget-char v6, v6, v7

    invoke-virtual {v1, v6}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    .line 58
    sget-object v6, Lsg/bigo/sdk/blivestat/utils/Base64Util;->legalChars:[C

    and-int/lit8 v5, v5, 0x3f

    aget-char v5, v6, v5

    invoke-virtual {v1, v5}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    add-int/lit8 v4, v4, 0x3

    goto :goto_f

    :cond_54
    add-int/2addr v0, v3

    add-int/lit8 v2, v0, -0x2

    if-ne v4, v2, :cond_8f

    .line 74
    aget-byte v0, p0, v4

    and-int/lit16 v0, v0, 0xff

    shl-int/lit8 v0, v0, 0x10

    add-int/lit8 v4, v4, 0x1

    aget-byte p0, p0, v4

    and-int/lit16 p0, p0, 0xff

    shl-int/lit8 p0, p0, 0x8

    or-int/2addr p0, v0

    .line 78
    sget-object v0, Lsg/bigo/sdk/blivestat/utils/Base64Util;->legalChars:[C

    shr-int/lit8 v2, p0, 0x12

    and-int/lit8 v2, v2, 0x3f

    aget-char v0, v0, v2

    invoke-virtual {v1, v0}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    .line 80
    sget-object v0, Lsg/bigo/sdk/blivestat/utils/Base64Util;->legalChars:[C

    shr-int/lit8 v2, p0, 0xc

    and-int/lit8 v2, v2, 0x3f

    aget-char v0, v0, v2

    invoke-virtual {v1, v0}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    .line 82
    sget-object v0, Lsg/bigo/sdk/blivestat/utils/Base64Util;->legalChars:[C

    shr-int/lit8 p0, p0, 0x6

    and-int/lit8 p0, p0, 0x3f

    aget-char p0, v0, p0

    invoke-virtual {v1, p0}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    const-string p0, "="

    .line 84
    invoke-virtual {v1, p0}, Ljava/lang/StringBuffer;->append(Ljava/lang/String;)Ljava/lang/StringBuffer;

    goto :goto_b4

    :cond_8f
    add-int/lit8 v0, v0, -0x1

    if-ne v4, v0, :cond_b4

    .line 88
    aget-byte p0, p0, v4

    and-int/lit16 p0, p0, 0xff

    shl-int/lit8 p0, p0, 0x10

    .line 90
    sget-object v0, Lsg/bigo/sdk/blivestat/utils/Base64Util;->legalChars:[C

    shr-int/lit8 v2, p0, 0x12

    and-int/lit8 v2, v2, 0x3f

    aget-char v0, v0, v2

    invoke-virtual {v1, v0}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    .line 92
    sget-object v0, Lsg/bigo/sdk/blivestat/utils/Base64Util;->legalChars:[C

    shr-int/lit8 p0, p0, 0xc

    and-int/lit8 p0, p0, 0x3f

    aget-char p0, v0, p0

    invoke-virtual {v1, p0}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    const-string p0, "=="

    .line 94
    invoke-virtual {v1, p0}, Ljava/lang/StringBuffer;->append(Ljava/lang/String;)Ljava/lang/StringBuffer;

    .line 98
    :cond_b4
    :goto_b4
    invoke-virtual {v1}, Ljava/lang/StringBuffer;->toString()Ljava/lang/String;

    move-result-object p0

    return-object p0
.end method