AppSignatureHelper.smali

.class public Lcom/razorpay/AppSignatureHelper;
.super Landroid/content/ContextWrapper;
.source "AppSignatureHelper.java"


# static fields
.field private static final HASH_TYPE:Ljava/lang/String; = "SHA-256"

.field public static final NUM_BASE64_CHAR:I = 0xb

.field public static final NUM_HASHED_BYTES:I = 0x9

.field public static final TAG:Ljava/lang/String; = "AppSignatureHelper"


# direct methods
.method static constructor <clinit>()V
    .registers 0

    return-void
.end method

.method public constructor <init>(Landroid/content/Context;)V
    .registers 2

    .line 25
    invoke-direct {p0, p1}, Landroid/content/ContextWrapper;-><init>(Landroid/content/Context;)V

    return-void
.end method

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

    .line 56
    new-instance v0, Ljava/lang/StringBuilder;

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

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

    move-result-object v0

    const-string v1, " "

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

    move-result-object v0

    invoke-virtual {v0, p1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object p1

    invoke-virtual {p1}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object p1

    :try_start_17
    const-string v0, "SHA-256"

    .line 58
    invoke-static {v0}, Ljava/security/MessageDigest;->getInstance(Ljava/lang/String;)Ljava/security/MessageDigest;

    move-result-object v0

    .line 59
    sget-object v1, Ljava/nio/charset/StandardCharsets;->UTF_8:Ljava/nio/charset/Charset;

    invoke-virtual {p1, v1}, Ljava/lang/String;->getBytes(Ljava/nio/charset/Charset;)[B

    move-result-object p1

    invoke-virtual {v0, p1}, Ljava/security/MessageDigest;->update([B)V

    .line 60
    invoke-virtual {v0}, Ljava/security/MessageDigest;->digest()[B

    move-result-object p1

    const/16 v0, 0x9

    const/4 v1, 0x0

    .line 63
    invoke-static {p1, v1, v0}, Ljava/util/Arrays;->copyOfRange([BII)[B

    move-result-object p1

    const/4 v0, 0x3

    .line 65
    invoke-static {p1, v0}, Landroid/util/Base64;->encodeToString([BI)Ljava/lang/String;

    move-result-object p1

    const/16 v0, 0xb

    .line 66
    invoke-virtual {p1, v1, v0}, Ljava/lang/String;->substring(II)Ljava/lang/String;

    move-result-object p1

    .line 68
    sget-object v0, Lcom/razorpay/AppSignatureHelper;->TAG:Ljava/lang/String;

    const-string v2, "pkg: %s -- hash: %s"

    const/4 v3, 0x2

    new-array v3, v3, [Ljava/lang/Object;

    aput-object p0, v3, v1

    const/4 p0, 0x1

    aput-object p1, v3, p0

    invoke-static {v2, v3}, Ljava/lang/String;->format(Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String;

    move-result-object p0

    invoke-static {v0, p0}, Landroid/util/Log;->d(Ljava/lang/String;Ljava/lang/String;)I
    :try_end_4f
    .catch Ljava/security/NoSuchAlgorithmException; {:try_start_17 .. :try_end_4f} :catch_50

    return-object p1

    :catch_50
    move-exception p0

    .line 71
    sget-object p1, Lcom/razorpay/AppSignatureHelper;->TAG:Ljava/lang/String;

    const-string v0, "hash:NoSuchAlgorithm"

    invoke-static {p1, v0, p0}, Landroid/util/Log;->e(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Throwable;)I

    const/4 p0, 0x0

    return-object p0
.end method


# virtual methods
.method public getAppSignatures()Ljava/util/ArrayList;
    .registers 10
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "()",
            "Ljava/util/ArrayList<",
            "Ljava/lang/String;",
            ">;"
        }
    .end annotation

    .line 33
    new-instance v0, Ljava/util/ArrayList;

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

    .line 37
    :try_start_5
    invoke-virtual {p0}, Lcom/razorpay/AppSignatureHelper;->getPackageName()Ljava/lang/String;

    move-result-object v1

    .line 38
    invoke-virtual {p0}, Lcom/razorpay/AppSignatureHelper;->getPackageManager()Landroid/content/pm/PackageManager;

    move-result-object v2

    const/16 v3, 0x40

    .line 39
    invoke-virtual {v2, v1, v3}, Landroid/content/pm/PackageManager;->getPackageInfo(Ljava/lang/String;I)Landroid/content/pm/PackageInfo;

    move-result-object v2

    iget-object v2, v2, Landroid/content/pm/PackageInfo;->signatures:[Landroid/content/pm/Signature;

    .line 43
    array-length v3, v2

    const/4 v4, 0x0

    move v5, v4

    :goto_18
    if-ge v5, v3, :cond_3f

    aget-object v6, v2, v5

    .line 44
    invoke-virtual {v6}, Landroid/content/pm/Signature;->toCharsString()Ljava/lang/String;

    move-result-object v6

    invoke-static {v1, v6}, Lcom/razorpay/AppSignatureHelper;->hash(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;

    move-result-object v6

    if-eqz v6, :cond_34

    const-string v7, "%s"

    const/4 v8, 0x1

    new-array v8, v8, [Ljava/lang/Object;

    aput-object v6, v8, v4

    .line 46
    invoke-static {v7, v8}, Ljava/lang/String;->format(Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String;

    move-result-object v6

    invoke-virtual {v0, v6}, Ljava/util/ArrayList;->add(Ljava/lang/Object;)Z
    :try_end_34
    .catch Landroid/content/pm/PackageManager$NameNotFoundException; {:try_start_5 .. :try_end_34} :catch_37

    :cond_34
    add-int/lit8 v5, v5, 0x1

    goto :goto_18

    :catch_37
    move-exception v1

    .line 50
    sget-object v2, Lcom/razorpay/AppSignatureHelper;->TAG:Ljava/lang/String;

    const-string v3, "Unable to find package to obtain hash."

    invoke-static {v2, v3, v1}, Landroid/util/Log;->e(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Throwable;)I

    :cond_3f
    return-object v0
.end method