MD5Util.smali

.class public Lcom/cmcm/adsdk/dynamic/MD5Util;
.super Ljava/lang/Object;
.source "MD5Util.java"


# static fields
.field protected static hexDigits:[C

.field protected static messagedigest:Ljava/security/MessageDigest;


# direct methods
.method static constructor <clinit>()V
    .registers 4

    .prologue
    .line 13
    const/16 v0, 0x10

    new-array v0, v0, [C

    fill-array-data v0, :array_3a

    sput-object v0, Lcom/cmcm/adsdk/dynamic/MD5Util;->hexDigits:[C

    .line 14
    const/4 v0, 0x0

    sput-object v0, Lcom/cmcm/adsdk/dynamic/MD5Util;->messagedigest:Ljava/security/MessageDigest;

    .line 17
    :try_start_c
    const-string v0, "MD5"

    invoke-static {v0}, Ljava/security/MessageDigest;->getInstance(Ljava/lang/String;)Ljava/security/MessageDigest;

    move-result-object v0

    sput-object v0, Lcom/cmcm/adsdk/dynamic/MD5Util;->messagedigest:Ljava/security/MessageDigest;
    :try_end_14
    .catch Ljava/security/NoSuchAlgorithmException; {:try_start_c .. :try_end_14} :catch_15

    .line 22
    :goto_14
    return-void

    .line 18
    :catch_15
    move-exception v0

    .line 19
    sget-object v1, Ljava/lang/System;->err:Ljava/io/PrintStream;

    new-instance v2, Ljava/lang/StringBuilder;

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

    const-class v3, Lcom/cmcm/adsdk/dynamic/MD5Util;

    invoke-virtual {v3}, Ljava/lang/Class;->getName()Ljava/lang/String;

    move-result-object v3

    invoke-virtual {v2, v3}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v2

    const-string/jumbo v3, "\ufffd\ufffd\u02bc\ufffd\ufffd\u02a7\ufffd\u0723\ufffdMessageDigest\ufffd\ufffd\u05a7\ufffd\ufffdMD5Util\ufffd\ufffd"

    invoke-virtual {v2, v3}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v2

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

    move-result-object v2

    invoke-virtual {v1, v2}, Ljava/io/PrintStream;->println(Ljava/lang/String;)V

    .line 20
    invoke-virtual {v0}, Ljava/security/NoSuchAlgorithmException;->printStackTrace()V

    goto :goto_14

    .line 13
    nop

    :array_3a
    .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 public constructor <init>()V
    .registers 1

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

    return-void
.end method

.method private static appendHexPair(BLjava/lang/StringBuffer;)V
    .registers 5

    .prologue
    .line 68
    sget-object v0, Lcom/cmcm/adsdk/dynamic/MD5Util;->hexDigits:[C

    and-int/lit16 v1, p0, 0xf0

    shr-int/lit8 v1, v1, 0x4

    aget-char v0, v0, v1

    .line 69
    sget-object v1, Lcom/cmcm/adsdk/dynamic/MD5Util;->hexDigits:[C

    and-int/lit8 v2, p0, 0xf

    aget-char v1, v1, v2

    .line 70
    invoke-virtual {p1, v0}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    .line 71
    invoke-virtual {p1, v1}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    .line 72
    return-void
.end method

.method private static bufferToHex([B)Ljava/lang/String;
    .registers 3

    .prologue
    .line 54
    const/4 v0, 0x0

    array-length v1, p0

    invoke-static {p0, v0, v1}, Lcom/cmcm/adsdk/dynamic/MD5Util;->bufferToHex([BII)Ljava/lang/String;

    move-result-object v0

    return-object v0
.end method

.method private static bufferToHex([BII)Ljava/lang/String;
    .registers 6

    .prologue
    .line 58
    new-instance v0, Ljava/lang/StringBuffer;

    mul-int/lit8 v1, p2, 0x2

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

    .line 59
    add-int v1, p1, p2

    .line 60
    :goto_9
    if-ge p1, v1, :cond_13

    .line 61
    aget-byte v2, p0, p1

    invoke-static {v2, v0}, Lcom/cmcm/adsdk/dynamic/MD5Util;->appendHexPair(BLjava/lang/StringBuffer;)V

    .line 60
    add-int/lit8 p1, p1, 0x1

    goto :goto_9

    .line 63
    :cond_13
    invoke-virtual {v0}, Ljava/lang/StringBuffer;->toString()Ljava/lang/String;

    move-result-object v0

    return-object v0
.end method

.method public static getFileMD5String(Ljava/io/File;)Ljava/lang/String;
    .registers 8
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .prologue
    .line 26
    :try_start_0
    new-instance v6, Ljava/io/FileInputStream;

    invoke-direct {v6, p0}, Ljava/io/FileInputStream;-><init>(Ljava/io/File;)V

    .line 27
    invoke-virtual {v6}, Ljava/io/FileInputStream;->getChannel()Ljava/nio/channels/FileChannel;

    move-result-object v0

    .line 28
    sget-object v1, Ljava/nio/channels/FileChannel$MapMode;->READ_ONLY:Ljava/nio/channels/FileChannel$MapMode;

    const-wide/16 v2, 0x0

    invoke-virtual {p0}, Ljava/io/File;->length()J

    move-result-wide v4

    invoke-virtual/range {v0 .. v5}, Ljava/nio/channels/FileChannel;->map(Ljava/nio/channels/FileChannel$MapMode;JJ)Ljava/nio/MappedByteBuffer;

    move-result-object v1

    .line 29
    sget-object v2, Lcom/cmcm/adsdk/dynamic/MD5Util;->messagedigest:Ljava/security/MessageDigest;

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

    .line 30
    sget-object v1, Lcom/cmcm/adsdk/dynamic/MD5Util;->messagedigest:Ljava/security/MessageDigest;

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

    move-result-object v1

    invoke-static {v1}, Lcom/cmcm/adsdk/dynamic/MD5Util;->bufferToHex([B)Ljava/lang/String;

    move-result-object v1

    .line 31
    if-eqz v0, :cond_29

    .line 32
    invoke-virtual {v0}, Ljava/nio/channels/FileChannel;->close()V

    .line 34
    :cond_29
    if-eqz v6, :cond_2e

    .line 35
    invoke-virtual {v6}, Ljava/io/FileInputStream;->close()V
    :try_end_2e
    .catch Ljava/lang/Exception; {:try_start_0 .. :try_end_2e} :catch_30

    :cond_2e
    move-object v0, v1

    .line 41
    :goto_2f
    return-object v0

    .line 38
    :catch_30
    move-exception v0

    .line 39
    invoke-virtual {v0}, Ljava/lang/Exception;->printStackTrace()V

    .line 41
    const/4 v0, 0x0

    goto :goto_2f
.end method

.method public static getMD5String(Ljava/lang/String;)Ljava/lang/String;
    .registers 2

    .prologue
    .line 45
    invoke-virtual {p0}, Ljava/lang/String;->getBytes()[B

    move-result-object v0

    invoke-static {v0}, Lcom/cmcm/adsdk/dynamic/MD5Util;->getMD5String([B)Ljava/lang/String;

    move-result-object v0

    return-object v0
.end method

.method public static getMD5String([B)Ljava/lang/String;
    .registers 2

    .prologue
    .line 49
    sget-object v0, Lcom/cmcm/adsdk/dynamic/MD5Util;->messagedigest:Ljava/security/MessageDigest;

    invoke-virtual {v0, p0}, Ljava/security/MessageDigest;->update([B)V

    .line 50
    sget-object v0, Lcom/cmcm/adsdk/dynamic/MD5Util;->messagedigest:Ljava/security/MessageDigest;

    invoke-virtual {v0}, Ljava/security/MessageDigest;->digest()[B

    move-result-object v0

    invoke-static {v0}, Lcom/cmcm/adsdk/dynamic/MD5Util;->bufferToHex([B)Ljava/lang/String;

    move-result-object v0

    return-object v0
.end method