• app.debloat
• com.google.firebase.installations
• RandomFidGenerator.smali

granularity level: instruction

		.class public Lcom/google/firebase/installations/RandomFidGenerator;
.super Ljava/lang/Object;
.source "RandomFidGenerator.java"


.field private static final FID_4BIT_PREFIX:B
.field private static final FID_LENGTH:I = 0x16
.field private static final REMOVE_PREFIX_MASK:B


.method static constructor <clinit>()V
	.locals 2

	const-string v0, "01110000"
	const/4 v1, 0x2
	invoke-static {v0, v1}, Ljava/lang/Byte;->parseByte(Ljava/lang/String;I)B
	move-result v0
	sput-byte v0, Lcom/google/firebase/installations/RandomFidGenerator;->FID_4BIT_PREFIX:B
	const-string v0, "00001111"
	invoke-static {v0, v1}, Ljava/lang/Byte;->parseByte(Ljava/lang/String;I)B
	move-result v0
	sput-byte v0, Lcom/google/firebase/installations/RandomFidGenerator;->REMOVE_PREFIX_MASK:B
	return-void
.end method

.method public constructor <init>()V
	.locals 0

	invoke-direct {p0}, Ljava/lang/Object;-><init>()V
	return-void
.end method

.method private static encodeFidBase64UrlSafe([B)Ljava/lang/String;
	.locals 2

	new-instance v0, Ljava/lang/String;
	const/16 v1, 0xb
	invoke-static {p0, v1}, Landroid/util/Base64;->encode([BI)[B
	move-result-object p0
	invoke-static {}, Ljava/nio/charset/Charset;->defaultCharset()Ljava/nio/charset/Charset;
	move-result-object v1
	invoke-direct {v0, p0, v1}, Ljava/lang/String;-><init>([BLjava/nio/charset/Charset;)V
	const/4 p0, 0x0
	const/16 v1, 0x16
	invoke-virtual {v0, p0, v1}, Ljava/lang/String;->substring(II)Ljava/lang/String;
	move-result-object p0
	return-object p0
.end method

.method private static getBytesFromUUID(Ljava/util/UUID;[B)[B
	.locals 2

	invoke-static {p1}, Ljava/nio/ByteBuffer;->wrap([B)Ljava/nio/ByteBuffer;
	move-result-object p1
	invoke-virtual {p0}, Ljava/util/UUID;->getMostSignificantBits()J
	move-result-wide v0
	invoke-virtual {p1, v0, v1}, Ljava/nio/ByteBuffer;->putLong(J)Ljava/nio/ByteBuffer;
	invoke-virtual {p0}, Ljava/util/UUID;->getLeastSignificantBits()J
	move-result-wide v0
	invoke-virtual {p1, v0, v1}, Ljava/nio/ByteBuffer;->putLong(J)Ljava/nio/ByteBuffer;
	invoke-virtual {p1}, Ljava/nio/ByteBuffer;->array()[B
	move-result-object p0
	return-object p0
.end method

.method public createRandomFid()Ljava/lang/String;
	.locals 4

	invoke-static {}, Ljava/util/UUID;->randomUUID()Ljava/util/UUID;
	move-result-object v0
	const/16 v1, 0x11
	new-array v1, v1, [B
	invoke-static {v0, v1}, Lcom/google/firebase/installations/RandomFidGenerator;->getBytesFromUUID(Ljava/util/UUID;[B)[B
	move-result-object v0
	const/4 v1, 0x0
	aget-byte v2, v0, v1
	const/16 v3, 0x10
	aput-byte v2, v0, v3
	sget-byte v3, Lcom/google/firebase/installations/RandomFidGenerator;->REMOVE_PREFIX_MASK:B
	and-int/2addr v2, v3
	sget-byte v3, Lcom/google/firebase/installations/RandomFidGenerator;->FID_4BIT_PREFIX:B
	or-int/2addr v2, v3
	int-to-byte v2, v2
	aput-byte v2, v0, v1
	invoke-static {v0}, Lcom/google/firebase/installations/RandomFidGenerator;->encodeFidBase64UrlSafe([B)Ljava/lang/String;
	move-result-object v0
	return-object v0
.end method