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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /mobile/android/thirdparty/ch/boye/httpclientandroidlib/client/utils/Rfc3492Idn.java
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'mobile/android/thirdparty/ch/boye/httpclientandroidlib/client/utils/Rfc3492Idn.java')
-rw-r--r--mobile/android/thirdparty/ch/boye/httpclientandroidlib/client/utils/Rfc3492Idn.java141
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diff --git a/mobile/android/thirdparty/ch/boye/httpclientandroidlib/client/utils/Rfc3492Idn.java b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/client/utils/Rfc3492Idn.java
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--- /dev/null
+++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/client/utils/Rfc3492Idn.java
@@ -0,0 +1,141 @@
+/*
+ * ====================================================================
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation. For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ *
+ */
+package ch.boye.httpclientandroidlib.client.utils;
+
+import java.util.StringTokenizer;
+
+import ch.boye.httpclientandroidlib.annotation.Immutable;
+
+/**
+ * Implementation from pseudo code in RFC 3492.
+ *
+ * @since 4.0
+ */
+@Immutable
+public class Rfc3492Idn implements Idn {
+ private static final int base = 36;
+ private static final int tmin = 1;
+ private static final int tmax = 26;
+ private static final int skew = 38;
+ private static final int damp = 700;
+ private static final int initial_bias = 72;
+ private static final int initial_n = 128;
+ private static final char delimiter = '-';
+ private static final String ACE_PREFIX = "xn--";
+
+ private int adapt(final int delta, final int numpoints, final boolean firsttime) {
+ int d = delta;
+ if (firsttime) {
+ d = d / damp;
+ } else {
+ d = d / 2;
+ }
+ d = d + (d / numpoints);
+ int k = 0;
+ while (d > ((base - tmin) * tmax) / 2) {
+ d = d / (base - tmin);
+ k = k + base;
+ }
+ return k + (((base - tmin + 1) * d) / (d + skew));
+ }
+
+ private int digit(final char c) {
+ if ((c >= 'A') && (c <= 'Z')) {
+ return (c - 'A');
+ }
+ if ((c >= 'a') && (c <= 'z')) {
+ return (c - 'a');
+ }
+ if ((c >= '0') && (c <= '9')) {
+ return (c - '0') + 26;
+ }
+ throw new IllegalArgumentException("illegal digit: "+ c);
+ }
+
+ public String toUnicode(final String punycode) {
+ final StringBuilder unicode = new StringBuilder(punycode.length());
+ final StringTokenizer tok = new StringTokenizer(punycode, ".");
+ while (tok.hasMoreTokens()) {
+ String t = tok.nextToken();
+ if (unicode.length() > 0) {
+ unicode.append('.');
+ }
+ if (t.startsWith(ACE_PREFIX)) {
+ t = decode(t.substring(4));
+ }
+ unicode.append(t);
+ }
+ return unicode.toString();
+ }
+
+ protected String decode(final String s) {
+ String input = s;
+ int n = initial_n;
+ int i = 0;
+ int bias = initial_bias;
+ final StringBuilder output = new StringBuilder(input.length());
+ final int lastdelim = input.lastIndexOf(delimiter);
+ if (lastdelim != -1) {
+ output.append(input.subSequence(0, lastdelim));
+ input = input.substring(lastdelim + 1);
+ }
+
+ while (input.length() > 0) {
+ final int oldi = i;
+ int w = 1;
+ for (int k = base;; k += base) {
+ if (input.length() == 0) {
+ break;
+ }
+ final char c = input.charAt(0);
+ input = input.substring(1);
+ final int digit = digit(c);
+ i = i + digit * w; // FIXME fail on overflow
+ final int t;
+ if (k <= bias + tmin) {
+ t = tmin;
+ } else if (k >= bias + tmax) {
+ t = tmax;
+ } else {
+ t = k - bias;
+ }
+ if (digit < t) {
+ break;
+ }
+ w = w * (base - t); // FIXME fail on overflow
+ }
+ bias = adapt(i - oldi, output.length() + 1, (oldi == 0));
+ n = n + i / (output.length() + 1); // FIXME fail on overflow
+ i = i % (output.length() + 1);
+ // {if n is a basic code point then fail}
+ output.insert(i, (char) n);
+ i++;
+ }
+ return output.toString();
+ }
+
+}