CertificateUtil.smali

.class public Lcom/facebook/internal/security/CertificateUtil;
.super Ljava/lang/Object;
.source "CertificateUtil.java"


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


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

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

    return-void
.end method

.method public static getCertificateHash(Landroid/content/Context;)Ljava/lang/String;
    .registers 7

    .line 1
    :try_start_0
    invoke-virtual {p0}, Landroid/content/Context;->getPackageManager()Landroid/content/pm/PackageManager;

    move-result-object v0

    invoke-virtual {p0}, Landroid/content/Context;->getPackageName()Ljava/lang/String;

    move-result-object p0

    const/16 v1, 0x40

    invoke-virtual {v0, p0, v1}, Landroid/content/pm/PackageManager;->getPackageInfo(Ljava/lang/String;I)Landroid/content/pm/PackageInfo;

    move-result-object p0

    iget-object p0, p0, Landroid/content/pm/PackageInfo;->signatures:[Landroid/content/pm/Signature;

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

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

    const-string v1, "SHA1"

    .line 3
    invoke-static {v1}, Ljava/security/MessageDigest;->getInstance(Ljava/lang/String;)Ljava/security/MessageDigest;

    move-result-object v1

    .line 4
    array-length v2, p0

    const/4 v3, 0x0

    const/4 v4, 0x0

    :goto_1e
    if-ge v4, v2, :cond_3c

    aget-object v5, p0, v4

    .line 5
    invoke-virtual {v5}, Landroid/content/pm/Signature;->toByteArray()[B

    move-result-object v5

    invoke-virtual {v1, v5}, Ljava/security/MessageDigest;->update([B)V

    .line 6
    invoke-virtual {v1}, Ljava/security/MessageDigest;->digest()[B

    move-result-object v5

    invoke-static {v5, v3}, Landroid/util/Base64;->encodeToString([BI)Ljava/lang/String;

    move-result-object v5

    invoke-virtual {v0, v5}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    const-string v5, ":"

    .line 7
    invoke-virtual {v0, v5}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    add-int/lit8 v4, v4, 0x1

    goto :goto_1e

    .line 8
    :cond_3c
    invoke-virtual {v0}, Ljava/lang/StringBuilder;->length()I

    move-result p0

    if-lez p0, :cond_4b

    .line 9
    invoke-virtual {v0}, Ljava/lang/StringBuilder;->length()I

    move-result p0

    add-int/lit8 p0, p0, -0x1

    invoke-virtual {v0, p0}, Ljava/lang/StringBuilder;->setLength(I)V

    .line 10
    :cond_4b
    invoke-virtual {v0}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object p0
    :try_end_4f
    .catch Landroid/content/pm/PackageManager$NameNotFoundException; {:try_start_0 .. :try_end_4f} :catch_50
    .catch Ljava/security/NoSuchAlgorithmException; {:try_start_0 .. :try_end_4f} :catch_50

    return-object p0

    :catch_50
    const-string p0, ""

    return-object p0
.end method