SecurityUtils.smali

.class Lcom/kwad/sdk/api/loader/SecurityUtils;
.super Ljava/lang/Object;


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


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

    const/16 v0, 0x10

    new-array v0, v0, [C

    fill-array-data v0, :array_a

    sput-object v0, Lcom/kwad/sdk/api/loader/SecurityUtils;->HEX_CHARS:[C

    return-void

    :array_a
    .array-data 2
        0x30s
        0x31s
        0x32s
        0x33s
        0x34s
        0x35s
        0x36s
        0x37s
        0x38s
        0x39s
        0x61s
        0x62s
        0x63s
        0x64s
        0x65s
        0x66s
    .end array-data
.end method

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

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

    return-void
.end method

.method static getFileMD5(Ljava/io/File;)Ljava/lang/String;
    .registers 9

    const-string v0, ""

    :try_start_2
    const-string v1, "MD5"

    invoke-static {v1}, Ljava/security/MessageDigest;->getInstance(Ljava/lang/String;)Ljava/security/MessageDigest;

    move-result-object v2

    new-instance v1, Ljava/io/FileInputStream;

    invoke-direct {v1, p0}, Ljava/io/FileInputStream;-><init>(Ljava/io/File;)V

    new-instance v3, Ljava/security/DigestInputStream;

    invoke-direct {v3, v1, v2}, Ljava/security/DigestInputStream;-><init>(Ljava/io/InputStream;Ljava/security/MessageDigest;)V

    const/16 v1, 0x400

    new-array v4, v1, [B

    invoke-virtual {v3, v4}, Ljava/security/DigestInputStream;->read([B)I

    move-result v1

    :goto_1a
    const/4 v5, -0x1

    if-eq v1, v5, :cond_22

    invoke-virtual {v3, v4}, Ljava/security/DigestInputStream;->read([B)I

    move-result v1

    goto :goto_1a

    :cond_22
    invoke-virtual {v2}, Ljava/security/MessageDigest;->digest()[B

    move-result-object v2

    new-instance v3, Ljava/lang/StringBuilder;

    array-length v1, v2

    mul-int/lit8 v1, v1, 0x2

    invoke-direct {v3, v1}, Ljava/lang/StringBuilder;-><init>(I)V

    array-length v4, v2

    const/4 v1, 0x0

    :goto_30
    if-ge v1, v4, :cond_4b

    aget-byte v5, v2, v1

    and-int/lit16 v6, v5, 0xff

    const/16 v7, 0x10

    if-ge v6, v7, :cond_3f

    const-string v6, "0"

    invoke-virtual {v3, v6}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    :cond_3f
    and-int/lit16 v5, v5, 0xff

    invoke-static {v5}, Ljava/lang/Integer;->toHexString(I)Ljava/lang/String;

    move-result-object v5

    invoke-virtual {v3, v5}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    add-int/lit8 v1, v1, 0x1

    goto :goto_30

    :cond_4b
    invoke-virtual {v3}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;
    :try_end_4e
    .catch Ljava/lang/Exception; {:try_start_2 .. :try_end_4e} :catch_50

    move-result-object v0

    :goto_4f
    return-object v0

    :catch_50
    move-exception v1

    invoke-virtual {v1}, Ljava/lang/Exception;->printStackTrace()V

    goto :goto_4f
.end method

.method static md5Hex(Ljava/lang/String;)Ljava/lang/String;
    .registers 5

    const/4 v0, 0x0

    if-eqz p0, :cond_9

    :try_start_3
    invoke-virtual {p0}, Ljava/lang/String;->length()I

    move-result v1

    if-nez v1, :cond_c

    :cond_9
    const-string v0, ""

    :cond_b
    :goto_b
    return-object v0

    :cond_c
    const-string v1, "MD5"

    invoke-static {v1}, Ljava/security/MessageDigest;->getInstance(Ljava/lang/String;)Ljava/security/MessageDigest;

    move-result-object v1

    const-string v2, "UTF-8"

    invoke-virtual {p0, v2}, Ljava/lang/String;->getBytes(Ljava/lang/String;)[B

    move-result-object v2

    invoke-virtual {v1, v2}, Ljava/security/MessageDigest;->update([B)V

    invoke-virtual {v1}, Ljava/security/MessageDigest;->digest()[B

    move-result-object v1

    array-length v2, v1

    const/4 v3, 0x1

    if-lt v2, v3, :cond_b

    const/4 v2, 0x0

    array-length v3, v1

    invoke-static {v1, v2, v3}, Lcom/kwad/sdk/api/loader/SecurityUtils;->toHexString([BII)Ljava/lang/String;
    :try_end_28
    .catch Ljava/lang/Throwable; {:try_start_3 .. :try_end_28} :catch_2a

    move-result-object v0

    goto :goto_b

    :catch_2a
    move-exception v1

    goto :goto_b
.end method

.method private static safetyCloseStream(Ljava/io/Closeable;)V
    .registers 2

    if-eqz p0, :cond_5

    :try_start_2
    invoke-interface {p0}, Ljava/io/Closeable;->close()V
    :try_end_5
    .catch Ljava/io/IOException; {:try_start_2 .. :try_end_5} :catch_6

    :cond_5
    :goto_5
    return-void

    :catch_6
    move-exception v0

    goto :goto_5
.end method

.method private static toHexString([BII)Ljava/lang/String;
    .registers 11

    const/4 v1, 0x0

    if-nez p0, :cond_b

    new-instance v0, Ljava/lang/NullPointerException;

    const-string v1, "bytes is null"

    invoke-direct {v0, v1}, Ljava/lang/NullPointerException;-><init>(Ljava/lang/String;)V

    throw v0

    :cond_b
    if-ltz p1, :cond_12

    add-int v0, p1, p2

    array-length v2, p0

    if-le v0, v2, :cond_18

    :cond_12
    new-instance v0, Ljava/lang/IndexOutOfBoundsException;

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

    throw v0

    :cond_18
    mul-int/lit8 v0, p2, 0x2

    new-array v3, v0, [C

    move v0, v1

    move v2, v1

    :goto_1e
    if-ge v0, p2, :cond_3d

    add-int v4, v0, p1

    aget-byte v4, p0, v4

    and-int/lit16 v4, v4, 0xff

    add-int/lit8 v5, v2, 0x1

    sget-object v6, Lcom/kwad/sdk/api/loader/SecurityUtils;->HEX_CHARS:[C

    shr-int/lit8 v7, v4, 0x4

    aget-char v6, v6, v7

    aput-char v6, v3, v2

    add-int/lit8 v2, v5, 0x1

    sget-object v6, Lcom/kwad/sdk/api/loader/SecurityUtils;->HEX_CHARS:[C

    and-int/lit8 v4, v4, 0xf

    aget-char v4, v6, v4

    aput-char v4, v3, v5

    add-int/lit8 v0, v0, 0x1

    goto :goto_1e

    :cond_3d
    new-instance v0, Ljava/lang/String;

    mul-int/lit8 v2, p2, 0x2

    invoke-direct {v0, v3, v1, v2}, Ljava/lang/String;-><init>([CII)V

    return-object v0
.end method