diff -r 000000000000 -r 6474c204b198 mobile/android/thirdparty/ch/boye/httpclientandroidlib/message/BasicHeaderValueFormatter.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/message/BasicHeaderValueFormatter.java	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,429 @@
+/*
+ * ====================================================================
+ * 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.message;
+
+import ch.boye.httpclientandroidlib.HeaderElement;
+import ch.boye.httpclientandroidlib.NameValuePair;
+import ch.boye.httpclientandroidlib.util.CharArrayBuffer;
+
+/**
+ * Basic implementation for formatting header value elements.
+ * Instances of this class are stateless and thread-safe.
+ * Derived classes are expected to maintain these properties.
+ *
+ * @since 4.0
+ */
+public class BasicHeaderValueFormatter implements HeaderValueFormatter {
+
+    /**
+     * A default instance of this class, for use as default or fallback.
+     * Note that {@link BasicHeaderValueFormatter} is not a singleton, there
+     * can be many instances of the class itself and of derived classes.
+     * The instance here provides non-customized, default behavior.
+     */
+    public final static
+        BasicHeaderValueFormatter DEFAULT = new BasicHeaderValueFormatter();
+
+
+    /**
+     * Special characters that can be used as separators in HTTP parameters.
+     * These special characters MUST be in a quoted string to be used within
+     * a parameter value .
+     */
+    public final static String SEPARATORS = " ;,:@()<>\\\"/[]?={}\t";
+
+
+    /**
+     * Unsafe special characters that must be escaped using the backslash
+     * character
+     */
+    public final static String UNSAFE_CHARS = "\"\\";
+
+
+
+    // public default constructor
+
+
+
+    /**
+     * Formats an array of header elements.
+     *
+     * @param elems     the header elements to format
+     * @param quote     <code>true</code> to always format with quoted values,
+     *                  <code>false</code> to use quotes only when necessary
+     * @param formatter         the formatter to use, or <code>null</code>
+     *                          for the {@link #DEFAULT default}
+     *
+     * @return  the formatted header elements
+     */
+    public final static
+        String formatElements(final HeaderElement[] elems,
+                              final boolean quote,
+                              HeaderValueFormatter formatter) {
+        if (formatter == null)
+            formatter = BasicHeaderValueFormatter.DEFAULT;
+        return formatter.formatElements(null, elems, quote).toString();
+    }
+
+
+    // non-javadoc, see interface HeaderValueFormatter
+    public CharArrayBuffer formatElements(CharArrayBuffer buffer,
+                                          final HeaderElement[] elems,
+                                          final boolean quote) {
+        if (elems == null) {
+            throw new IllegalArgumentException
+                ("Header element array must not be null.");
+        }
+
+        int len = estimateElementsLen(elems);
+        if (buffer == null) {
+            buffer = new CharArrayBuffer(len);
+        } else {
+            buffer.ensureCapacity(len);
+        }
+
+        for (int i=0; i<elems.length; i++) {
+            if (i > 0) {
+                buffer.append(", ");
+            }
+            formatHeaderElement(buffer, elems[i], quote);
+        }
+
+        return buffer;
+    }
+
+
+    /**
+     * Estimates the length of formatted header elements.
+     *
+     * @param elems     the header elements to format, or <code>null</code>
+     *
+     * @return  a length estimate, in number of characters
+     */
+    protected int estimateElementsLen(final HeaderElement[] elems) {
+        if ((elems == null) || (elems.length < 1))
+            return 0;
+
+        int result = (elems.length-1) * 2; // elements separated by ", "
+        for (int i=0; i<elems.length; i++) {
+            result += estimateHeaderElementLen(elems[i]);
+        }
+
+        return result;
+    }
+
+
+
+    /**
+     * Formats a header element.
+     *
+     * @param elem      the header element to format
+     * @param quote     <code>true</code> to always format with quoted values,
+     *                  <code>false</code> to use quotes only when necessary
+     * @param formatter         the formatter to use, or <code>null</code>
+     *                          for the {@link #DEFAULT default}
+     *
+     * @return  the formatted header element
+     */
+    public final static
+        String formatHeaderElement(final HeaderElement elem,
+                                   boolean quote,
+                                   HeaderValueFormatter formatter) {
+        if (formatter == null)
+            formatter = BasicHeaderValueFormatter.DEFAULT;
+        return formatter.formatHeaderElement(null, elem, quote).toString();
+    }
+
+
+    // non-javadoc, see interface HeaderValueFormatter
+    public CharArrayBuffer formatHeaderElement(CharArrayBuffer buffer,
+                                               final HeaderElement elem,
+                                               final boolean quote) {
+        if (elem == null) {
+            throw new IllegalArgumentException
+                ("Header element must not be null.");
+        }
+
+        int len = estimateHeaderElementLen(elem);
+        if (buffer == null) {
+            buffer = new CharArrayBuffer(len);
+        } else {
+            buffer.ensureCapacity(len);
+        }
+
+        buffer.append(elem.getName());
+        final String value = elem.getValue();
+        if (value != null) {
+            buffer.append('=');
+            doFormatValue(buffer, value, quote);
+        }
+
+        final int parcnt = elem.getParameterCount();
+        if (parcnt > 0) {
+            for (int i=0; i<parcnt; i++) {
+                buffer.append("; ");
+                formatNameValuePair(buffer, elem.getParameter(i), quote);
+            }
+        }
+
+        return buffer;
+    }
+
+
+    /**
+     * Estimates the length of a formatted header element.
+     *
+     * @param elem      the header element to format, or <code>null</code>
+     *
+     * @return  a length estimate, in number of characters
+     */
+    protected int estimateHeaderElementLen(final HeaderElement elem) {
+        if (elem == null)
+            return 0;
+
+        int result = elem.getName().length(); // name
+        final String value = elem.getValue();
+        if (value != null) {
+            // assume quotes, but no escaped characters
+            result += 3 + value.length(); // ="value"
+        }
+
+        final int parcnt = elem.getParameterCount();
+        if (parcnt > 0) {
+            for (int i=0; i<parcnt; i++) {
+                result += 2 +                   // ; <param>
+                    estimateNameValuePairLen(elem.getParameter(i));
+            }
+        }
+
+        return result;
+    }
+
+
+
+
+    /**
+     * Formats a set of parameters.
+     *
+     * @param nvps      the parameters to format
+     * @param quote     <code>true</code> to always format with quoted values,
+     *                  <code>false</code> to use quotes only when necessary
+     * @param formatter         the formatter to use, or <code>null</code>
+     *                          for the {@link #DEFAULT default}
+     *
+     * @return  the formatted parameters
+     */
+    public final static
+        String formatParameters(final NameValuePair[] nvps,
+                                final boolean quote,
+                                HeaderValueFormatter formatter) {
+        if (formatter == null)
+            formatter = BasicHeaderValueFormatter.DEFAULT;
+        return formatter.formatParameters(null, nvps, quote).toString();
+    }
+
+
+    // non-javadoc, see interface HeaderValueFormatter
+    public CharArrayBuffer formatParameters(CharArrayBuffer buffer,
+                                            NameValuePair[] nvps,
+                                            boolean quote) {
+        if (nvps == null) {
+            throw new IllegalArgumentException
+                ("Parameters must not be null.");
+        }
+
+        int len = estimateParametersLen(nvps);
+        if (buffer == null) {
+            buffer = new CharArrayBuffer(len);
+        } else {
+            buffer.ensureCapacity(len);
+        }
+
+        for (int i = 0; i < nvps.length; i++) {
+            if (i > 0) {
+                buffer.append("; ");
+            }
+            formatNameValuePair(buffer, nvps[i], quote);
+        }
+
+        return buffer;
+    }
+
+
+    /**
+     * Estimates the length of formatted parameters.
+     *
+     * @param nvps      the parameters to format, or <code>null</code>
+     *
+     * @return  a length estimate, in number of characters
+     */
+    protected int estimateParametersLen(final NameValuePair[] nvps) {
+        if ((nvps == null) || (nvps.length < 1))
+            return 0;
+
+        int result = (nvps.length-1) * 2; // "; " between the parameters
+        for (int i=0; i<nvps.length; i++) {
+            result += estimateNameValuePairLen(nvps[i]);
+        }
+
+        return result;
+    }
+
+
+    /**
+     * Formats a name-value pair.
+     *
+     * @param nvp       the name-value pair to format
+     * @param quote     <code>true</code> to always format with a quoted value,
+     *                  <code>false</code> to use quotes only when necessary
+     * @param formatter         the formatter to use, or <code>null</code>
+     *                          for the {@link #DEFAULT default}
+     *
+     * @return  the formatted name-value pair
+     */
+    public final static
+        String formatNameValuePair(final NameValuePair nvp,
+                                   final boolean quote,
+                                   HeaderValueFormatter formatter) {
+        if (formatter == null)
+            formatter = BasicHeaderValueFormatter.DEFAULT;
+        return formatter.formatNameValuePair(null, nvp, quote).toString();
+    }
+
+
+    // non-javadoc, see interface HeaderValueFormatter
+    public CharArrayBuffer formatNameValuePair(CharArrayBuffer buffer,
+                                               final NameValuePair nvp,
+                                               final boolean quote) {
+        if (nvp == null) {
+            throw new IllegalArgumentException
+                ("NameValuePair must not be null.");
+        }
+
+        int len = estimateNameValuePairLen(nvp);
+        if (buffer == null) {
+            buffer = new CharArrayBuffer(len);
+        } else {
+            buffer.ensureCapacity(len);
+        }
+
+        buffer.append(nvp.getName());
+        final String value = nvp.getValue();
+        if (value != null) {
+            buffer.append('=');
+            doFormatValue(buffer, value, quote);
+        }
+
+        return buffer;
+    }
+
+
+    /**
+     * Estimates the length of a formatted name-value pair.
+     *
+     * @param nvp       the name-value pair to format, or <code>null</code>
+     *
+     * @return  a length estimate, in number of characters
+     */
+    protected int estimateNameValuePairLen(final NameValuePair nvp) {
+        if (nvp == null)
+            return 0;
+
+        int result = nvp.getName().length(); // name
+        final String value = nvp.getValue();
+        if (value != null) {
+            // assume quotes, but no escaped characters
+            result += 3 + value.length(); // ="value"
+        }
+        return result;
+    }
+
+
+    /**
+     * Actually formats the value of a name-value pair.
+     * This does not include a leading = character.
+     * Called from {@link #formatNameValuePair formatNameValuePair}.
+     *
+     * @param buffer    the buffer to append to, never <code>null</code>
+     * @param value     the value to append, never <code>null</code>
+     * @param quote     <code>true</code> to always format with quotes,
+     *                  <code>false</code> to use quotes only when necessary
+     */
+    protected void doFormatValue(final CharArrayBuffer buffer,
+                                 final String value,
+                                 boolean quote) {
+
+        if (!quote) {
+            for (int i = 0; (i < value.length()) && !quote; i++) {
+                quote = isSeparator(value.charAt(i));
+            }
+        }
+
+        if (quote) {
+            buffer.append('"');
+        }
+        for (int i = 0; i < value.length(); i++) {
+            char ch = value.charAt(i);
+            if (isUnsafe(ch)) {
+                buffer.append('\\');
+            }
+            buffer.append(ch);
+        }
+        if (quote) {
+            buffer.append('"');
+        }
+    }
+
+
+    /**
+     * Checks whether a character is a {@link #SEPARATORS separator}.
+     *
+     * @param ch        the character to check
+     *
+     * @return  <code>true</code> if the character is a separator,
+     *          <code>false</code> otherwise
+     */
+    protected boolean isSeparator(char ch) {
+        return SEPARATORS.indexOf(ch) >= 0;
+    }
+
+
+    /**
+     * Checks whether a character is {@link #UNSAFE_CHARS unsafe}.
+     *
+     * @param ch        the character to check
+     *
+     * @return  <code>true</code> if the character is unsafe,
+     *          <code>false</code> otherwise
+     */
+    protected boolean isUnsafe(char ch) {
+        return UNSAFE_CHARS.indexOf(ch) >= 0;
+    }
+
+
+} // class BasicHeaderValueFormatter