TransportFrameUtil.smali

.class public final Lio/grpc/internal/TransportFrameUtil;
.super Ljava/lang/Object;
.source "TransportFrameUtil.java"


# static fields
.field private static final binaryHeaderSuffixBytes:[B

.field private static final logger:Ljava/util/logging/Logger;


# direct methods
.method static constructor <clinit>()V
    .registers 2

    .line 1
    const-class v0, Lio/grpc/internal/TransportFrameUtil;

    invoke-virtual {v0}, Ljava/lang/Class;->getName()Ljava/lang/String;

    move-result-object v0

    invoke-static {v0}, Ljava/util/logging/Logger;->getLogger(Ljava/lang/String;)Ljava/util/logging/Logger;

    move-result-object v0

    sput-object v0, Lio/grpc/internal/TransportFrameUtil;->logger:Ljava/util/logging/Logger;

    .line 2
    sget-object v0, Lcom/google/common/base/d;->a:Ljava/nio/charset/Charset;

    const-string v1, "-bin"

    .line 3
    invoke-virtual {v1, v0}, Ljava/lang/String;->getBytes(Ljava/nio/charset/Charset;)[B

    move-result-object v0

    sput-object v0, Lio/grpc/internal/TransportFrameUtil;->binaryHeaderSuffixBytes:[B

    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 endsWith([B[B)Z
    .registers 7

    .line 1
    array-length v0, p0

    array-length v1, p1

    sub-int/2addr v0, v1

    const/4 v1, 0x0

    if-gez v0, :cond_7

    return v1

    :cond_7
    move v2, v0

    .line 2
    :goto_8
    array-length v3, p0

    if-ge v2, v3, :cond_17

    .line 3
    aget-byte v3, p0, v2

    sub-int v4, v2, v0

    aget-byte v4, p1, v4

    if-eq v3, v4, :cond_14

    return v1

    :cond_14
    add-int/lit8 v2, v2, 0x1

    goto :goto_8

    :cond_17
    const/4 p0, 0x1

    return p0
.end method

.method private static isSpecCompliantAscii([B)Z
    .registers 6

    .line 1
    array-length v0, p0

    const/4 v1, 0x0

    const/4 v2, 0x0

    :goto_3
    if-ge v2, v0, :cond_14

    aget-byte v3, p0, v2

    const/16 v4, 0x20

    if-lt v3, v4, :cond_13

    const/16 v4, 0x7e

    if-le v3, v4, :cond_10

    goto :goto_13

    :cond_10
    add-int/lit8 v2, v2, 0x1

    goto :goto_3

    :cond_13
    :goto_13
    return v1

    :cond_14
    const/4 p0, 0x1

    return p0
.end method

.method public static toHttp2Headers(Lio/grpc/Metadata;)[[B
    .registers 9

    .line 1
    invoke-virtual {p0}, Lio/grpc/Metadata;->serialize()[[B

    move-result-object p0

    const/4 v0, 0x0

    const/4 v1, 0x0

    const/4 v2, 0x0

    .line 2
    :goto_7
    array-length v3, p0

    if-ge v1, v3, :cond_6d

    .line 3
    aget-object v3, p0, v1

    add-int/lit8 v4, v1, 0x1

    .line 4
    aget-object v4, p0, v4

    .line 5
    sget-object v5, Lio/grpc/internal/TransportFrameUtil;->binaryHeaderSuffixBytes:[B

    invoke-static {v3, v5}, Lio/grpc/internal/TransportFrameUtil;->endsWith([B[B)Z

    move-result v5

    if-eqz v5, :cond_2f

    .line 6
    aput-object v3, p0, v2

    add-int/lit8 v3, v2, 0x1

    .line 7
    invoke-static {}, Lcom/google/common/io/BaseEncoding;->a()Lcom/google/common/io/BaseEncoding;

    move-result-object v5

    invoke-virtual {v5, v4}, Lcom/google/common/io/BaseEncoding;->a([B)Ljava/lang/String;

    move-result-object v4

    sget-object v5, Lcom/google/common/base/d;->a:Ljava/nio/charset/Charset;

    invoke-virtual {v4, v5}, Ljava/lang/String;->getBytes(Ljava/nio/charset/Charset;)[B

    move-result-object v4

    aput-object v4, p0, v3

    :goto_2c
    add-int/lit8 v2, v2, 0x2

    goto :goto_6a

    .line 8
    :cond_2f
    invoke-static {v4}, Lio/grpc/internal/TransportFrameUtil;->isSpecCompliantAscii([B)Z

    move-result v5

    if-eqz v5, :cond_3c

    .line 9
    aput-object v3, p0, v2

    add-int/lit8 v3, v2, 0x1

    .line 10
    aput-object v4, p0, v3

    goto :goto_2c

    .line 11
    :cond_3c
    new-instance v5, Ljava/lang/String;

    sget-object v6, Lcom/google/common/base/d;->a:Ljava/nio/charset/Charset;

    invoke-direct {v5, v3, v6}, Ljava/lang/String;-><init>([BLjava/nio/charset/Charset;)V

    .line 12
    sget-object v3, Lio/grpc/internal/TransportFrameUtil;->logger:Ljava/util/logging/Logger;

    new-instance v6, Ljava/lang/StringBuilder;

    invoke-direct {v6}, Ljava/lang/StringBuilder;-><init>()V

    const-string v7, "Metadata key="

    invoke-virtual {v6, v7}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    invoke-virtual {v6, v5}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    const-string v5, ", value="

    invoke-virtual {v6, v5}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    invoke-static {v4}, Ljava/util/Arrays;->toString([B)Ljava/lang/String;

    move-result-object v4

    invoke-virtual {v6, v4}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    const-string v4, " contains invalid ASCII characters"

    invoke-virtual {v6, v4}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    invoke-virtual {v6}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v4

    invoke-virtual {v3, v4}, Ljava/util/logging/Logger;->warning(Ljava/lang/String;)V

    :goto_6a
    add-int/lit8 v1, v1, 0x2

    goto :goto_7

    .line 13
    :cond_6d
    array-length v1, p0

    if-ne v2, v1, :cond_71

    return-object p0

    .line 14
    :cond_71
    invoke-static {p0, v0, v2}, Ljava/util/Arrays;->copyOfRange([Ljava/lang/Object;II)[Ljava/lang/Object;

    move-result-object p0

    check-cast p0, [[B

    return-object p0
.end method

.method public static toRawSerializedHeaders([[B)[[B
    .registers 7

    const/4 v0, 0x0

    .line 1
    :goto_1
    array-length v1, p0

    if-ge v0, v1, :cond_28

    .line 2
    aget-object v1, p0, v0

    add-int/lit8 v2, v0, 0x1

    .line 3
    aget-object v3, p0, v2

    .line 4
    aput-object v1, p0, v0

    .line 5
    sget-object v4, Lio/grpc/internal/TransportFrameUtil;->binaryHeaderSuffixBytes:[B

    invoke-static {v1, v4}, Lio/grpc/internal/TransportFrameUtil;->endsWith([B[B)Z

    move-result v1

    if-eqz v1, :cond_25

    .line 6
    invoke-static {}, Lcom/google/common/io/BaseEncoding;->a()Lcom/google/common/io/BaseEncoding;

    move-result-object v1

    new-instance v4, Ljava/lang/String;

    sget-object v5, Lcom/google/common/base/d;->a:Ljava/nio/charset/Charset;

    invoke-direct {v4, v3, v5}, Ljava/lang/String;-><init>([BLjava/nio/charset/Charset;)V

    invoke-virtual {v1, v4}, Lcom/google/common/io/BaseEncoding;->a(Ljava/lang/CharSequence;)[B

    move-result-object v1

    aput-object v1, p0, v2

    :cond_25
    add-int/lit8 v0, v0, 0x2

    goto :goto_1

    :cond_28
    return-object p0
.end method