--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/com/go/trove/net/HttpUtils.java	Sat Mar 21 11:00:06 2009 +0000
@@ -0,0 +1,192 @@
+/*
+ * HttpUtils.java
+ * 
+ * Copyright (c) 2000 Walt Disney Internet Group. All Rights Reserved.
+ * 
+ * Original author: Brian S O'Neill
+ * 
+ * $Workfile:: HttpUtils.java                                                 $
+ *   $Author: dan $
+ * $Revision: 1.1 $
+ *     $Date: Mon, 13 Oct 2003 12:20:39 +0100 $
+ */
+
+package com.go.trove.net;
+
+import java.io.*;
+
+/******************************************************************************
+ * 
+ * @author Brian S O'Neill
+ * @version
+ * <!--$$Revision: 1.1 $-->, <!--$$JustDate:--> 01/04/03 <!-- $-->
+ */
+public class HttpUtils {
+    /**
+     * Reads a line from an HTTP InputStream, using the given buffer for
+     * temporary storage.
+     *
+     * @param in stream to read from
+     * @param buffer temporary buffer to use
+     * @throws IllegalArgumentException if the given InputStream doesn't
+     * support marking
+     */
+    public static String readLine(InputStream in, byte[] buffer)
+        throws IllegalArgumentException, IOException
+    {
+        return readLine(in, buffer, -1);
+    }
+
+    /**
+     * Reads a line from an HTTP InputStream, using the given buffer for
+     * temporary storage.
+     *
+     * @param in stream to read from
+     * @param buffer temporary buffer to use
+     * @throws IllegalArgumentException if the given InputStream doesn't
+     * support marking
+     * @throws LineTooLongException when line is longer than the limit
+     */
+    public static String readLine(InputStream in, byte[] buffer, int limit)
+        throws IllegalArgumentException, IOException, LineTooLongException
+    {
+        if (!in.markSupported()) {
+            throw new IllegalArgumentException
+                ("InputStream doesn't support marking: " + in.getClass());
+        }
+
+        String line = null;
+
+        int cursor = 0;
+        int len = buffer.length;
+
+        int count = 0;
+        int c;
+    loop:
+        while ((c = in.read()) >= 0) {
+            if (limit >= 0 && ++count > limit) {
+                throw new LineTooLongException(limit);
+            }
+
+            switch (c) {
+            case '\r':
+                in.mark(1);
+                if (in.read() != '\n') {
+                    in.reset();
+                }
+                // fall through
+            case '\n':
+                if (line == null && cursor == 0) {
+                    return "";
+                }
+                break loop;
+            default:
+                if (cursor >= len) {
+                    if (line == null) {
+                        line = new String(buffer, "8859_1");
+                    }
+                    else {
+                        line = line.concat(new String(buffer, "8859_1"));
+                    }
+                    cursor = 0;
+                }
+                buffer[cursor++] = (byte)c;
+            }
+        }
+
+        if (cursor > 0) {
+            if (line == null) {
+                line = new String(buffer, 0, cursor, "8859_1");
+            }
+            else {
+                line = line.concat(new String(buffer, 0, cursor, "8859_1"));
+            }
+        }
+
+        return line;
+    }
+
+    /**
+     * Reads a line from an HTTP InputStream, using the given buffer for
+     * temporary storage.
+     *
+     * @param in stream to read from
+     * @param buffer temporary buffer to use
+     * @throws IllegalArgumentException if the given InputStream doesn't
+     * support marking
+     */
+    public static String readLine(InputStream in, char[] buffer)
+        throws IllegalArgumentException, IOException
+    {
+        return readLine(in, buffer, -1);
+    }
+
+    /**
+     * Reads a line from an HTTP InputStream, using the given buffer for
+     * temporary storage.
+     *
+     * @param in stream to read from
+     * @param buffer temporary buffer to use
+     * @throws IllegalArgumentException if the given InputStream doesn't
+     * support marking
+     * @throws LineTooLongException when line is longer than the limit
+     */
+    public static String readLine(InputStream in, char[] buffer, int limit)
+        throws IllegalArgumentException, IOException, LineTooLongException
+    {
+        if (!in.markSupported()) {
+            throw new IllegalArgumentException
+                ("InputStream doesn't support marking: " + in.getClass());
+        }
+
+        String line = null;
+
+        int cursor = 0;
+        int len = buffer.length;
+
+        int count = 0;
+        int c;
+    loop:
+        while ((c = in.read()) >= 0) {
+            if (limit >= 0 && ++count > limit) {
+                throw new LineTooLongException(limit);
+            }
+
+            switch (c) {
+            case '\r':
+                in.mark(1);
+                if (in.read() != '\n') {
+                    in.reset();
+                }
+                // fall through
+            case '\n':
+                if (line == null && cursor == 0) {
+                    return "";
+                }
+                break loop;
+            default:
+                if (cursor >= len) {
+                    if (line == null) {
+                        line = new String(buffer);
+                    }
+                    else {
+                        line = line.concat(new String(buffer));
+                    }
+                    cursor = 0;
+                }
+                buffer[cursor++] = (char)c;
+            }
+        }
+
+        if (cursor > 0) {
+            if (line == null) {
+                line = new String(buffer, 0, cursor);
+            }
+            else {
+                line = line.concat(new String(buffer, 0, cursor));
+            }
+        }
+
+        return line;
+    }
+}