pt 1 in reviving the android build (copied from pm 28a1, wish me luck)

mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/auth/RFC2617Scheme.java

@@ -0,0 +1,151 @@
+/*
+ * ====================================================================
+ * 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.impl.auth;
+
+import java.nio.charset.Charset;
+import java.util.HashMap;
+import java.util.Locale;
+import java.util.Map;
+
+import ch.boye.httpclientandroidlib.Consts;
+import ch.boye.httpclientandroidlib.HeaderElement;
+import ch.boye.httpclientandroidlib.HttpRequest;
+import ch.boye.httpclientandroidlib.annotation.NotThreadSafe;
+import ch.boye.httpclientandroidlib.auth.ChallengeState;
+import ch.boye.httpclientandroidlib.auth.MalformedChallengeException;
+import ch.boye.httpclientandroidlib.auth.params.AuthPNames;
+import ch.boye.httpclientandroidlib.message.BasicHeaderValueParser;
+import ch.boye.httpclientandroidlib.message.HeaderValueParser;
+import ch.boye.httpclientandroidlib.message.ParserCursor;
+import ch.boye.httpclientandroidlib.util.CharArrayBuffer;
+
+/**
+ * Abstract authentication scheme class that lays foundation for all
+ * RFC 2617 compliant authentication schemes and provides capabilities common
+ * to all authentication schemes defined in RFC 2617.
+ *
+ * @since 4.0
+ */
+@SuppressWarnings("deprecation")
+@NotThreadSafe // AuthSchemeBase, params
+public abstract class RFC2617Scheme extends AuthSchemeBase {
+
+    private final Map<String, String> params;
+    private final Charset credentialsCharset;
+
+    /**
+     * Creates an instance of <tt>RFC2617Scheme</tt> with the given challenge
+     * state.
+     *
+     * @since 4.2
+     *
+     * @deprecated (4.3) do not use.
+     */
+    @Deprecated
+    public RFC2617Scheme(final ChallengeState challengeState) {
+        super(challengeState);
+        this.params = new HashMap<String, String>();
+        this.credentialsCharset = Consts.ASCII;
+    }
+
+    /**
+     * @since 4.3
+     */
+    public RFC2617Scheme(final Charset credentialsCharset) {
+        super();
+        this.params = new HashMap<String, String>();
+        this.credentialsCharset = credentialsCharset != null ? credentialsCharset : Consts.ASCII;
+    }
+
+    public RFC2617Scheme() {
+        this(Consts.ASCII);
+    }
+
+
+    /**
+     * @since 4.3
+     */
+    public Charset getCredentialsCharset() {
+        return credentialsCharset;
+    }
+
+    String getCredentialsCharset(final HttpRequest request) {
+        String charset = (String) request.getParams().getParameter(AuthPNames.CREDENTIAL_CHARSET);
+        if (charset == null) {
+            charset = getCredentialsCharset().name();
+        }
+        return charset;
+    }
+
+    @Override
+    protected void parseChallenge(
+            final CharArrayBuffer buffer, final int pos, final int len) throws MalformedChallengeException {
+        final HeaderValueParser parser = BasicHeaderValueParser.INSTANCE;
+        final ParserCursor cursor = new ParserCursor(pos, buffer.length());
+        final HeaderElement[] elements = parser.parseElements(buffer, cursor);
+        if (elements.length == 0) {
+            throw new MalformedChallengeException("Authentication challenge is empty");
+        }
+        this.params.clear();
+        for (final HeaderElement element : elements) {
+            this.params.put(element.getName().toLowerCase(Locale.ENGLISH), element.getValue());
+        }
+    }
+
+    /**
+     * Returns authentication parameters map. Keys in the map are lower-cased.
+     *
+     * @return the map of authentication parameters
+     */
+    protected Map<String, String> getParameters() {
+        return this.params;
+    }
+
+    /**
+     * Returns authentication parameter with the given name, if available.
+     *
+     * @param name The name of the parameter to be returned
+     *
+     * @return the parameter with the given name
+     */
+    public String getParameter(final String name) {
+        if (name == null) {
+            return null;
+        }
+        return this.params.get(name.toLowerCase(Locale.ENGLISH));
+    }
+
+    /**
+     * Returns authentication realm. The realm may not be null.
+     *
+     * @return the authentication realm
+     */
+    public String getRealm() {
+        return getParameter("realm");
+    }
+
+}