RongHttpDnsUtil.smali

.class final Lio/rong/imlib/httpdns/RongHttpDnsUtil;
.super Ljava/lang/Object;
.source "RongHttpDnsUtil.java"


# static fields
.field private static final ALGORITHM:Ljava/lang/String; = "DES"

.field private static final HEX:Ljava/lang/String; = "0123456789ABCDEF"

.field private static final IPV4_PATTERN:Ljava/lang/String; = "^((0|1\\d?\\d?|2[0-4]?\\d?|25[0-5]?|[3-9]\\d?)\\.){3}(0|1\\d?\\d?|2[0-4]?\\d?|25[0-5]?|[3-9]\\d?)$"

.field private static final IVPARAMETERSPEC:Ljava/lang/String; = "01020304"

.field private static final SHA1PRNG:Ljava/lang/String; = "SHA1PRNG"

.field private static final TAG:Ljava/lang/String; = "RongHttpDnsUtil"

.field private static final TRANSFORMATION:Ljava/lang/String; = "DES/CBC/PKCS5Padding"

.field private static dynamickey:Ljava/lang/String;

.field private static ipv4Pattern:Ljava/util/regex/Pattern;


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

    .line 1
    invoke-static {}, Lio/rong/imlib/httpdns/RongHttpDnsUtil;->generateKey()Ljava/lang/String;

    move-result-object v0

    sput-object v0, Lio/rong/imlib/httpdns/RongHttpDnsUtil;->dynamickey:Ljava/lang/String;

    const-string v0, "^((0|1\\d?\\d?|2[0-4]?\\d?|25[0-5]?|[3-9]\\d?)\\.){3}(0|1\\d?\\d?|2[0-4]?\\d?|25[0-5]?|[3-9]\\d?)$"

    .line 2
    invoke-static {v0}, Ljava/util/regex/Pattern;->compile(Ljava/lang/String;)Ljava/util/regex/Pattern;

    move-result-object v0

    sput-object v0, Lio/rong/imlib/httpdns/RongHttpDnsUtil;->ipv4Pattern:Ljava/util/regex/Pattern;

    return-void
.end method

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

    .line 1
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    return-void
.end method

.method private static appendHex(Ljava/lang/StringBuffer;B)V
    .registers 4

    shr-int/lit8 v0, p1, 0x4

    and-int/lit8 v0, v0, 0xf

    const-string v1, "0123456789ABCDEF"

    .line 1
    invoke-virtual {v1, v0}, Ljava/lang/String;->charAt(I)C

    move-result v0

    invoke-virtual {p0, v0}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    and-int/lit8 p1, p1, 0xf

    invoke-virtual {v1, p1}, Ljava/lang/String;->charAt(I)C

    move-result p1

    invoke-virtual {p0, p1}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    return-void
.end method

.method static decode(Ljava/lang/String;)Ljava/lang/String;
    .registers 3

    .line 1
    sget-object v0, Lio/rong/imlib/httpdns/RongHttpDnsUtil;->dynamickey:Ljava/lang/String;

    const/4 v1, 0x0

    invoke-static {p0, v1}, Landroid/util/Base64;->decode(Ljava/lang/String;I)[B

    move-result-object p0

    invoke-static {v0, p0}, Lio/rong/imlib/httpdns/RongHttpDnsUtil;->decode(Ljava/lang/String;[B)Ljava/lang/String;

    move-result-object p0

    return-object p0
.end method

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

    :try_start_0
    const-string v0, "DES/CBC/PKCS5Padding"

    .line 2
    invoke-static {v0}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v0

    .line 3
    new-instance v1, Ljavax/crypto/spec/IvParameterSpec;

    const-string v2, "01020304"

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

    move-result-object v2

    invoke-direct {v1, v2}, Ljavax/crypto/spec/IvParameterSpec;-><init>([B)V

    const/4 v2, 0x2

    .line 4
    invoke-static {p0}, Lio/rong/imlib/httpdns/RongHttpDnsUtil;->getRawKey(Ljava/lang/String;)Ljava/security/Key;

    move-result-object p0

    invoke-virtual {v0, v2, p0, v1}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;)V

    .line 5
    invoke-virtual {v0, p1}, Ljavax/crypto/Cipher;->doFinal([B)[B

    move-result-object p0

    .line 6
    new-instance p1, Ljava/lang/String;

    invoke-direct {p1, p0}, Ljava/lang/String;-><init>([B)V
    :try_end_22
    .catch Ljava/lang/Exception; {:try_start_0 .. :try_end_22} :catch_23

    return-object p1

    :catch_23
    const/4 p0, 0x0

    return-object p0
.end method

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

    .line 1
    sget-object v0, Lio/rong/imlib/httpdns/RongHttpDnsUtil;->dynamickey:Ljava/lang/String;

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

    move-result-object p0

    invoke-static {v0, p0}, Lio/rong/imlib/httpdns/RongHttpDnsUtil;->encode(Ljava/lang/String;[B)Ljava/lang/String;

    move-result-object p0

    return-object p0
.end method

.method private static encode(Ljava/lang/String;[B)Ljava/lang/String;
    .registers 5

    :try_start_0
    const-string v0, "DES/CBC/PKCS5Padding"

    .line 2
    invoke-static {v0}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v0

    .line 3
    new-instance v1, Ljavax/crypto/spec/IvParameterSpec;

    const-string v2, "01020304"

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

    move-result-object v2

    invoke-direct {v1, v2}, Ljavax/crypto/spec/IvParameterSpec;-><init>([B)V

    const/4 v2, 0x1

    .line 4
    invoke-static {p0}, Lio/rong/imlib/httpdns/RongHttpDnsUtil;->getRawKey(Ljava/lang/String;)Ljava/security/Key;

    move-result-object p0

    invoke-virtual {v0, v2, p0, v1}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;)V

    .line 5
    invoke-virtual {v0, p1}, Ljavax/crypto/Cipher;->doFinal([B)[B

    move-result-object p0

    const/4 p1, 0x0

    .line 6
    invoke-static {p0, p1}, Landroid/util/Base64;->encodeToString([BI)Ljava/lang/String;

    move-result-object p0
    :try_end_22
    .catch Ljava/lang/Exception; {:try_start_0 .. :try_end_22} :catch_23

    return-object p0

    :catch_23
    const/4 p0, 0x0

    return-object p0
.end method

.method private static generateKey()Ljava/lang/String;
    .registers 3

    :try_start_0
    const-string v0, "SHA1PRNG"

    .line 1
    invoke-static {v0}, Ljava/security/SecureRandom;->getInstance(Ljava/lang/String;)Ljava/security/SecureRandom;

    move-result-object v0

    const/16 v1, 0x14

    .line 2
    new-array v1, v1, [B

    .line 3
    invoke-virtual {v0, v1}, Ljava/security/SecureRandom;->nextBytes([B)V

    .line 4
    invoke-static {v1}, Lio/rong/imlib/httpdns/RongHttpDnsUtil;->toHex([B)Ljava/lang/String;

    move-result-object v0
    :try_end_11
    .catch Ljava/lang/Exception; {:try_start_0 .. :try_end_11} :catch_12

    return-object v0

    :catch_12
    move-exception v0

    const-string v1, "RongHttpDnsUtil"

    const-string v2, "generateKey Exception"

    .line 5
    invoke-static {v1, v2, v0}, Lio/rong/common/rlog/RLog;->e(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Throwable;)I

    const/4 v0, 0x0

    return-object v0
.end method

.method private static getRawKey(Ljava/lang/String;)Ljava/security/Key;
    .registers 2
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/lang/Exception;
        }
    .end annotation

    .line 1
    new-instance v0, Ljavax/crypto/spec/DESKeySpec;

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

    move-result-object p0

    invoke-direct {v0, p0}, Ljavax/crypto/spec/DESKeySpec;-><init>([B)V

    const-string p0, "DES"

    .line 2
    invoke-static {p0}, Ljavax/crypto/SecretKeyFactory;->getInstance(Ljava/lang/String;)Ljavax/crypto/SecretKeyFactory;

    move-result-object p0

    .line 3
    invoke-virtual {p0, v0}, Ljavax/crypto/SecretKeyFactory;->generateSecret(Ljava/security/spec/KeySpec;)Ljavax/crypto/SecretKey;

    move-result-object p0

    return-object p0
.end method

.method private static isIPV6Compress(Ljava/lang/String;)Z
    .registers 2

    const-string v0, "^((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?)::((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?)$"

    .line 1
    invoke-static {v0, p0}, Ljava/util/regex/Pattern;->matches(Ljava/lang/String;Ljava/lang/CharSequence;)Z

    move-result p0

    return p0
.end method

.method private static isIPv6Std(Ljava/lang/String;)Z
    .registers 2

    const-string v0, "^(?:[0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}$"

    .line 1
    invoke-static {v0, p0}, Ljava/util/regex/Pattern;->matches(Ljava/lang/String;Ljava/lang/CharSequence;)Z

    move-result p0

    return p0
.end method

.method static md5(Ljava/lang/String;)Ljava/lang/String;
    .registers 6

    const-string v0, "RongHttpDnsUtil"

    const/4 v1, 0x0

    :try_start_3
    const-string v2, "MD5"

    .line 1
    invoke-static {v2}, Ljava/security/MessageDigest;->getInstance(Ljava/lang/String;)Ljava/security/MessageDigest;

    move-result-object v2

    const-string v3, "UTF-8"

    invoke-virtual {p0, v3}, Ljava/lang/String;->getBytes(Ljava/lang/String;)[B

    move-result-object p0

    invoke-virtual {v2, p0}, Ljava/security/MessageDigest;->digest([B)[B

    move-result-object p0
    :try_end_13
    .catch Ljava/security/NoSuchAlgorithmException; {:try_start_3 .. :try_end_13} :catch_42
    .catch Ljava/io/UnsupportedEncodingException; {:try_start_3 .. :try_end_13} :catch_3b

    .line 2
    new-instance v0, Ljava/lang/StringBuilder;

    array-length v1, p0

    mul-int/lit8 v1, v1, 0x2

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

    .line 3
    array-length v1, p0

    const/4 v2, 0x0

    :goto_1d
    if-ge v2, v1, :cond_36

    aget-byte v3, p0, v2

    and-int/lit16 v3, v3, 0xff

    const/16 v4, 0x10

    if-ge v3, v4, :cond_2c

    const-string v4, "0"

    .line 4
    invoke-virtual {v0, v4}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    .line 5
    :cond_2c
    invoke-static {v3}, Ljava/lang/Integer;->toHexString(I)Ljava/lang/String;

    move-result-object v3

    invoke-virtual {v0, v3}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    add-int/lit8 v2, v2, 0x1

    goto :goto_1d

    .line 6
    :cond_36
    invoke-virtual {v0}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object p0

    return-object p0

    :catch_3b
    move-exception p0

    const-string v2, "md5 UnsupportedEncodingException"

    .line 7
    invoke-static {v0, v2, p0}, Lio/rong/common/rlog/RLog;->e(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Throwable;)I

    return-object v1

    :catch_42
    move-exception p0

    const-string v2, "md5 NoSuchAlgorithmException"

    .line 8
    invoke-static {v0, v2, p0}, Lio/rong/common/rlog/RLog;->e(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Throwable;)I

    return-object v1
.end method

.method private static toHex([B)Ljava/lang/String;
    .registers 5

    if-nez p0, :cond_5

    const-string p0, ""

    return-object p0

    .line 1
    :cond_5
    new-instance v0, Ljava/lang/StringBuffer;

    array-length v1, p0

    mul-int/lit8 v1, v1, 0x2

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

    .line 2
    array-length v1, p0

    const/4 v2, 0x0

    :goto_f
    if-ge v2, v1, :cond_19

    aget-byte v3, p0, v2

    .line 3
    invoke-static {v0, v3}, Lio/rong/imlib/httpdns/RongHttpDnsUtil;->appendHex(Ljava/lang/StringBuffer;B)V

    add-int/lit8 v2, v2, 0x1

    goto :goto_f

    .line 4
    :cond_19
    invoke-virtual {v0}, Ljava/lang/StringBuffer;->toString()Ljava/lang/String;

    move-result-object p0

    return-object p0
.end method

.method static validateIpv4(Ljava/lang/String;)Z
    .registers 2

    .line 1
    sget-object v0, Lio/rong/imlib/httpdns/RongHttpDnsUtil;->ipv4Pattern:Ljava/util/regex/Pattern;

    invoke-virtual {v0, p0}, Ljava/util/regex/Pattern;->matcher(Ljava/lang/CharSequence;)Ljava/util/regex/Matcher;

    move-result-object p0

    .line 2
    invoke-virtual {p0}, Ljava/util/regex/Matcher;->matches()Z

    move-result p0

    return p0
.end method

.method static validateIpv6(Ljava/lang/String;)Z
    .registers 3

    const-string v0, "[\\[\\]]"

    const-string v1, ""

    .line 1
    invoke-virtual {p0, v0, v1}, Ljava/lang/String;->replaceAll(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;

    move-result-object p0

    .line 2
    invoke-static {p0}, Lio/rong/imlib/httpdns/RongHttpDnsUtil;->isIPv6Std(Ljava/lang/String;)Z

    move-result v0

    if-nez v0, :cond_17

    invoke-static {p0}, Lio/rong/imlib/httpdns/RongHttpDnsUtil;->isIPV6Compress(Ljava/lang/String;)Z

    move-result p0

    if-eqz p0, :cond_15

    goto :goto_17

    :cond_15
    const/4 p0, 0x0

    goto :goto_18

    :cond_17
    :goto_17
    const/4 p0, 0x1

    :goto_18
    return p0
.end method