Use inlined version of Base64 encoder

CHANGELOG.md

@@ -13,7 +13,8 @@ X.Y.Z Release notes
 * None.
 
 ### Bug fixes
-* None.
+
+* Building React Native Android projects using Java version 9 used deprecated API's (#1779).
 
 ### Internal
 * Updated to Relm Sync 3.3.0.

examples/ReactExample/android/build.gradle

@@ -2,10 +2,11 @@
 
 buildscript {
     repositories {
+        google()
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.3.1'
+        classpath 'com.android.tools.build:gradle:3.1.2'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -14,8 +15,9 @@ buildscript {
 
 allprojects {
     repositories {
-        mavenLocal()
+        google()
         jcenter()
+        mavenLocal()
         maven {
             // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
             url "$rootDir/../node_modules/react-native/android"

examples/ReactExample/android/gradle/wrapper/gradle-wrapper.properties

@@ -2,4 +2,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4.1-all.zip

react-native/android/analytics_template

@@ -19,7 +19,6 @@ import java.net.SocketException;
 import java.security.NoSuchAlgorithmException;
 import java.util.Scanner;
 
-import javax.xml.bind.DatatypeConverter;
 import java.io.UnsupportedEncodingException;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
@@ -211,7 +210,7 @@ class Utils {
      * @throws UnsupportedEncodingException
      */
     public static String base64Encode(String data) throws UnsupportedEncodingException {
-        return DatatypeConverter.printBase64Binary(data.getBytes("UTF-8"));
+        return Base64.encodeToString(data.getBytes("UTF-8"), Base64.DEFAULT);
     }
 
     /**
@@ -240,5 +239,397 @@ class Utils {
     }
 }
 
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * Note: This version has been stripped down so it only supports encoding.
+ */
+import java.io.UnsupportedEncodingException;
+
+/**
+ * Utilities for encoding and decoding the Base64 representation of
+ * binary data.  See RFCs <a
+ * href="http://www.ietf.org/rfc/rfc2045.txt">2045</a> and <a
+ * href="http://www.ietf.org/rfc/rfc3548.txt">3548</a>.
+ */
+class Base64 {
+    /**
+     * Default values for encoder/decoder flags.
+     */
+    public static final int DEFAULT = 0;
+
+    /**
+     * Encoder flag bit to omit the padding '=' characters at the end
+     * of the output (if any).
+     */
+    public static final int NO_PADDING = 1;
+
+    /**
+     * Encoder flag bit to omit all line terminators (i.e., the output
+     * will be on one long line).
+     */
+    public static final int NO_WRAP = 2;
+
+    /**
+     * Encoder flag bit to indicate lines should be terminated with a
+     * CRLF pair instead of just an LF.  Has no effect if {@code
+     * NO_WRAP} is specified as well.
+     */
+    public static final int CRLF = 4;
+
+    /**
+     * Encoder/decoder flag bit to indicate using the "URL and
+     * filename safe" variant of Base64 (see RFC 3548 section 4) where
+     * {@code -} and {@code _} are used in place of {@code +} and
+     * {@code /}.
+     */
+    public static final int URL_SAFE = 8;
+
+    /**
+     * Flag to pass to {@link Base64OutputStream} to indicate that it
+     * should not close the output stream it is wrapping when it
+     * itself is closed.
+     */
+    public static final int NO_CLOSE = 16;
+
+    //  --------------------------------------------------------
+    //  shared code
+    //  --------------------------------------------------------
+
+    /* package */ static abstract class Coder {
+        public byte[] output;
+        public int op;
+
+        /**
+         * Encode/decode another block of input data.  this.output is
+         * provided by the caller, and must be big enough to hold all
+         * the coded data.  On exit, this.opwill be set to the length
+         * of the coded data.
+         *
+         * @param finish true if this is the final call to process for
+         *        this object.  Will finalize the coder state and
+         *        include any final bytes in the output.
+         *
+         * @return true if the input so far is good; false if some
+         *         error has been detected in the input stream..
+         */
+        public abstract boolean process(byte[] input, int offset, int len, boolean finish);
+
+        /**
+         * @return the maximum number of bytes a call to process()
+         * could produce for the given number of input bytes.  This may
+         * be an overestimate.
+         */
+        public abstract int maxOutputSize(int len);
+    }   
+
+    //  --------------------------------------------------------
+    //  encoding
+    //  --------------------------------------------------------
+
+    /**
+     * Base64-encode the given data and return a newly allocated
+     * String with the result.
+     *
+     * @param input  the data to encode
+     * @param flags  controls certain features of the encoded output.
+     *               Passing {@code DEFAULT} results in output that
+     *               adheres to RFC 2045.
+     */
+    public static String encodeToString(byte[] input, int flags) {
+        try {
+            return new String(encode(input, flags), "US-ASCII");
+        } catch (UnsupportedEncodingException e) {
+            // US-ASCII is guaranteed to be available.
+            throw new AssertionError(e);
+        }
+    }
+
+    /**
+     * Base64-encode the given data and return a newly allocated
+     * String with the result.
+     *
+     * @param input  the data to encode
+     * @param offset the position within the input array at which to
+     *               start
+     * @param len    the number of bytes of input to encode
+     * @param flags  controls certain features of the encoded output.
+     *               Passing {@code DEFAULT} results in output that
+     *               adheres to RFC 2045.
+     */
+    public static String encodeToString(byte[] input, int offset, int len, int flags) {
+        try {
+            return new String(encode(input, offset, len, flags), "US-ASCII");
+        } catch (UnsupportedEncodingException e) {
+            // US-ASCII is guaranteed to be available.
+            throw new AssertionError(e);
+        }
+    }
+
+    /**
+     * Base64-encode the given data and return a newly allocated
+     * byte[] with the result.
+     *
+     * @param input  the data to encode
+     * @param flags  controls certain features of the encoded output.
+     *               Passing {@code DEFAULT} results in output that
+     *               adheres to RFC 2045.
+     */
+    public static byte[] encode(byte[] input, int flags) {
+        return encode(input, 0, input.length, flags);
+    }
+
+    /**
+     * Base64-encode the given data and return a newly allocated
+     * byte[] with the result.
+     *
+     * @param input  the data to encode
+     * @param offset the position within the input array at which to
+     *               start
+     * @param len    the number of bytes of input to encode
+     * @param flags  controls certain features of the encoded output.
+     *               Passing {@code DEFAULT} results in output that
+     *               adheres to RFC 2045.
+     */
+    public static byte[] encode(byte[] input, int offset, int len, int flags) {
+        Encoder encoder = new Encoder(flags, null);
+
+        // Compute the exact length of the array we will produce.
+        int output_len = len / 3 * 4;
+
+        // Account for the tail of the data and the padding bytes, if any.
+        if (encoder.do_padding) {
+            if (len % 3 > 0) {
+                output_len += 4;
+            }
+        } else {
+            switch (len % 3) {
+                case 0: break;
+                case 1: output_len += 2; break;
+                case 2: output_len += 3; break;
+            }
+        }
+
+        // Account for the newlines, if any.
+        if (encoder.do_newline && len > 0) {
+            output_len += (((len-1) / (3 * Encoder.LINE_GROUPS)) + 1) *
+                (encoder.do_cr ? 2 : 1);
+        }
+
+        encoder.output = new byte[output_len];
+        encoder.process(input, offset, len, true);
+
+        assert encoder.op == output_len;
+
+        return encoder.output;
+    }
+
+    static class Encoder extends Coder {
+
+        /**
+         * Lookup table for turning Base64 alphabet positions (6 bits)
+         * into output bytes.
+         */
+        private static final byte[] ENCODE = [
+            'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
+            'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
+            'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
+            'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/',
+        ];
+
+        /**
+         * Lookup table for turning Base64 alphabet positions (6 bits)
+         * into output bytes.
+         */
+        private static final byte[] ENCODE_WEBSAFE = [
+            'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
+            'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
+            'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
+            'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '-', '_',
+        ];
+
+        final private byte[] tail;
+        /* package */ int tailLen;
+        private int count;
+
+        final public boolean do_padding;
+        final public boolean do_newline;
+        final public boolean do_cr;
+        final private byte[] alphabet;
+
+        public Encoder(int flags, byte[] output) {
+            this.output = output;
+
+            do_padding = (flags & NO_PADDING) == 0;
+            do_newline = (flags & NO_WRAP) == 0;
+            do_cr = (flags & CRLF) != 0;
+            alphabet = ((flags & URL_SAFE) == 0) ? ENCODE : ENCODE_WEBSAFE;
+
+            tail = new byte[2];
+            tailLen = 0;
+
+            count = do_newline ? LINE_GROUPS : -1;
+        }
+
+        /**
+         * @return an overestimate for the number of bytes {@code
+         * len} bytes could encode to.
+         */
+        public int maxOutputSize(int len) {
+            return len * 8/5 + 10;
+        }
+
+        public boolean process(byte[] input, int offset, int len, boolean finish) {
+            // Using local variables makes the encoder about 9% faster.
+            final byte[] alphabet = this.alphabet;
+            final byte[] output = this.output;
+            int op = 0;
+            int count = this.count;
+
+            int p = offset;
+            len += offset;
+            int v = -1;
+
+            // First we need to concatenate the tail of the previous call
+            // with any input bytes available now and see if we can empty
+            // the tail.
+
+            switch (tailLen) {
+                case 0:
+                    // There was no tail.
+                    break;
+
+                case 1:
+                    if (p+2 <= len) {
+                        // A 1-byte tail with at least 2 bytes of
+                        // input available now.
+                        v = ((tail[0] & 0xff) << 16) |
+                            ((input[p++] & 0xff) << 8) |
+                            (input[p++] & 0xff);
+                        tailLen = 0;
+                    };
+                    break;
+
+                case 2:
+                    if (p+1 <= len) {
+                        // A 2-byte tail with at least 1 byte of input.
+                        v = ((tail[0] & 0xff) << 16) |
+                            ((tail[1] & 0xff) << 8) |
+                            (input[p++] & 0xff);
+                        tailLen = 0;
+                    }
+                    break;
+            }
+
+            if (v != -1) {
+                output[op++] = alphabet[(v >> 18) & 0x3f];
+                output[op++] = alphabet[(v >> 12) & 0x3f];
+                output[op++] = alphabet[(v >> 6) & 0x3f];
+                output[op++] = alphabet[v & 0x3f];
+                if (--count == 0) {
+                    if (do_cr) output[op++] = '\r';
+                    output[op++] = '\n';
+                    count = LINE_GROUPS;
+                }
+            }
+
+            // At this point either there is no tail, or there are fewer
+            // than 3 bytes of input available.
+
+            // The main loop, turning 3 input bytes into 4 output bytes on
+            // each iteration.
+            while (p+3 <= len) {
+                v = ((input[p] & 0xff) << 16) |
+                    ((input[p+1] & 0xff) << 8) |
+                    (input[p+2] & 0xff);
+                output[op] = alphabet[(v >> 18) & 0x3f];
+                output[op+1] = alphabet[(v >> 12) & 0x3f];
+                output[op+2] = alphabet[(v >> 6) & 0x3f];
+                output[op+3] = alphabet[v & 0x3f];
+                p += 3;
+                op += 4;
+                if (--count == 0) {
+                    if (do_cr) output[op++] = '\r';
+                    output[op++] = '\n';
+                    count = LINE_GROUPS;
+                }
+            }
+
+            if (finish) {
+                // Finish up the tail of the input.  Note that we need to
+                // consume any bytes in tail before any bytes
+                // remaining in input; there should be at most two bytes
+                // total.
+
+                if (p-tailLen == len-1) {
+                    int t = 0;
+                    v = ((tailLen > 0 ? tail[t++] : input[p++]) & 0xff) << 4;
+                    tailLen -= t;
+                    output[op++] = alphabet[(v >> 6) & 0x3f];
+                    output[op++] = alphabet[v & 0x3f];
+                    if (do_padding) {
+                        output[op++] = '=';
+                        output[op++] = '=';
+                    }
+                    if (do_newline) {
+                        if (do_cr) output[op++] = '\r';
+                        output[op++] = '\n';
+                    }
+                } else if (p-tailLen == len-2) {
+                    int t = 0;
+                    v = (((tailLen > 1 ? tail[t++] : input[p++]) & 0xff) << 10) |
+                        (((tailLen > 0 ? tail[t++] : input[p++]) & 0xff) << 2);
+                    tailLen -= t;
+                    output[op++] = alphabet[(v >> 12) & 0x3f];
+                    output[op++] = alphabet[(v >> 6) & 0x3f];
+                    output[op++] = alphabet[v & 0x3f];
+                    if (do_padding) {
+                        output[op++] = '=';
+                    }
+                    if (do_newline) {
+                        if (do_cr) output[op++] = '\r';
+                        output[op++] = '\n';
+                    }
+                } else if (do_newline && op > 0 && count != LINE_GROUPS) {
+                    if (do_cr) output[op++] = '\r';
+                    output[op++] = '\n';
+                }
+
+                assert tailLen == 0;
+                assert p == len;
+            } else {
+                // Save the leftovers in tail to be consumed on the next
+                // call to encodeInternal.
+
+                if (p == len-1) {
+                    tail[tailLen++] = input[p];
+                } else if (p == len-2) {
+                    tail[tailLen++] = input[p];
+                    tail[tailLen++] = input[p+1];
+                }
+            }
+
+            this.op = op;
+            this.count = count;
+
+            return true;
+        }
+    }
+
+    private Base64() { }   // don't instantiate
+}
+
 // see https://discuss.gradle.org/t/build-gradle-cant-find-task-class-defined-in-an-apply-from-external-script/5836/2
 ext.SendAnalyticsTask = SendAnalyticsTask

react-native/android/build.gradle

@@ -1,17 +1,19 @@
 buildscript {
     repositories {
+        google()
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.3.1'
+        classpath 'com.android.tools.build:gradle:3.1.2'
         classpath 'de.undercouch:gradle-download-task:1.2'
     }
 }
 
 allprojects {
     repositories {
-        mavenLocal()
+        google()
         jcenter()
+        mavenLocal()
         maven {
             // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
             url "$projectDir/../../tests/react-test-app/node_modules/react-native/android"

react-native/android/gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.4-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4.1-bin.zip