Merge pull request #181 from inthepoche/dev

beta4

1 files changed, 325 insertions, 0 deletions

diff --git a/inc/3rdparty/simplepie/SimplePie/Content/Type/Sniffer.php b/inc/3rdparty/simplepie/SimplePie/Content/Type/Sniffer.php
new file mode 100644
index 00000000..7be71374
--- /dev/null
+++ b/inc/3rdparty/simplepie/SimplePie/Content/Type/Sniffer.php
@@ -0,0 +1,325 @@
+<?php
+/**
+ * SimplePie
+ *
+ * A PHP-Based RSS and Atom Feed Framework.
+ * Takes the hard work out of managing a complete RSS/Atom solution.
+ *
+ * Copyright (c) 2004-2009, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *      * Redistributions of source code must retain the above copyright notice, this list of
+ *        conditions and the following disclaimer.
+ *
+ *      * Redistributions in binary form must reproduce the above copyright notice, this list
+ *        of conditions and the following disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ *      * Neither the name of the SimplePie Team nor the names of its contributors may be used
+ *        to endorse or promote products derived from this software without specific prior
+ *        written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
+ * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @package SimplePie
+ * @version 1.3-dev
+ * @copyright 2004-2010 Ryan Parman, Geoffrey Sneddon, Ryan McCue
+ * @author Ryan Parman
+ * @author Geoffrey Sneddon
+ * @author Ryan McCue
+ * @link http://simplepie.org/ SimplePie
+ * @license http://www.opensource.org/licenses/bsd-license.php BSD License
+ * @todo phpDoc comments
+ */
+
+
+/**
+ * Content-type sniffing
+ *
+ * Based on the rules in http://tools.ietf.org/html/draft-abarth-mime-sniff-06
+ * @package SimplePie
+ */
+class SimplePie_Content_Type_Sniffer
+{
+        /**
+         * File object
+         *
+         * @var SimplePie_File
+         */
+        var $file;
+
+        /**
+         * Create an instance of the class with the input file
+         *
+         * @param SimplePie_Content_Type_Sniffer $file Input file
+         */
+        public function __construct($file)
+        {
+                $this->file = $file;
+        }
+
+        /**
+         * Get the Content-Type of the specified file
+         *
+         * @return string Actual Content-Type
+         */
+        public function get_type()
+        {
+                if (isset($this->file->headers['content-type']))
+                {
+                        if (!isset($this->file->headers['content-encoding'])
+                                && ($this->file->headers['content-type'] === 'text/plain'
+                                        || $this->file->headers['content-type'] === 'text/plain; charset=ISO-8859-1'
+                                        || $this->file->headers['content-type'] === 'text/plain; charset=iso-8859-1'
+                                        || $this->file->headers['content-type'] === 'text/plain; charset=UTF-8'))
+                        {
+                                return $this->text_or_binary();
+                        }
+
+                        if (($pos = strpos($this->file->headers['content-type'], ';')) !== false)
+                        {
+                                $official = substr($this->file->headers['content-type'], 0, $pos);
+                        }
+                        else
+                        {
+                                $official = $this->file->headers['content-type'];
+                        }
+                        $official = trim(strtolower($official));
+
+                        if ($official === 'unknown/unknown'
+                                || $official === 'application/unknown')
+                        {
+                                return $this->unknown();
+                        }
+                        elseif (substr($official, -4) === '+xml'
+                                || $official === 'text/xml'
+                                || $official === 'application/xml')
+                        {
+                                return $official;
+                        }
+                        elseif (substr($official, 0, 6) === 'image/')
+                        {
+                                if ($return = $this->image())
+                                {
+                                        return $return;
+                                }
+                                else
+                                {
+                                        return $official;
+                                }
+                        }
+                        elseif ($official === 'text/html')
+                        {
+                                return $this->feed_or_html();
+                        }
+                        else
+                        {
+                                return $official;
+                        }
+                }
+                else
+                {
+                        return $this->unknown();
+                }
+        }
+
+        /**
+         * Sniff text or binary
+         *
+         * @return string Actual Content-Type
+         */
+        public function text_or_binary()
+        {
+                if (substr($this->file->body, 0, 2) === "\xFE\xFF"
+                        || substr($this->file->body, 0, 2) === "\xFF\xFE"
+                        || substr($this->file->body, 0, 4) === "\x00\x00\xFE\xFF"
+                        || substr($this->file->body, 0, 3) === "\xEF\xBB\xBF")
+                {
+                        return 'text/plain';
+                }
+                elseif (preg_match('/[\x00-\x08\x0E-\x1A\x1C-\x1F]/', $this->file->body))
+                {
+                        return 'application/octect-stream';
+                }
+                else
+                {
+                        return 'text/plain';
+                }
+        }
+
+        /**
+         * Sniff unknown
+         *
+         * @return string Actual Content-Type
+         */
+        public function unknown()
+        {
+                $ws = strspn($this->file->body, "\x09\x0A\x0B\x0C\x0D\x20");
+                if (strtolower(substr($this->file->body, $ws, 14)) === '<!doctype html'
+                        || strtolower(substr($this->file->body, $ws, 5)) === '<html'
+                        || strtolower(substr($this->file->body, $ws, 7)) === '<script')
+                {
+                        return 'text/html';
+                }
+                elseif (substr($this->file->body, 0, 5) === '%PDF-')
+                {
+                        return 'application/pdf';
+                }
+                elseif (substr($this->file->body, 0, 11) === '%!PS-Adobe-')
+                {
+                        return 'application/postscript';
+                }
+                elseif (substr($this->file->body, 0, 6) === 'GIF87a'
+                        || substr($this->file->body, 0, 6) === 'GIF89a')
+                {
+                        return 'image/gif';
+                }
+                elseif (substr($this->file->body, 0, 8) === "\x89\x50\x4E\x47\x0D\x0A\x1A\x0A")
+                {
+                        return 'image/png';
+                }
+                elseif (substr($this->file->body, 0, 3) === "\xFF\xD8\xFF")
+                {
+                        return 'image/jpeg';
+                }
+                elseif (substr($this->file->body, 0, 2) === "\x42\x4D")
+                {
+                        return 'image/bmp';
+                }
+                elseif (substr($this->file->body, 0, 4) === "\x00\x00\x01\x00")
+                {
+                        return 'image/vnd.microsoft.icon';
+                }
+                else
+                {
+                        return $this->text_or_binary();
+                }
+        }
+
+        /**
+         * Sniff images
+         *
+         * @return string Actual Content-Type
+         */
+        public function image()
+        {
+                if (substr($this->file->body, 0, 6) === 'GIF87a'
+                        || substr($this->file->body, 0, 6) === 'GIF89a')
+                {
+                        return 'image/gif';
+                }
+                elseif (substr($this->file->body, 0, 8) === "\x89\x50\x4E\x47\x0D\x0A\x1A\x0A")
+                {
+                        return 'image/png';
+                }
+                elseif (substr($this->file->body, 0, 3) === "\xFF\xD8\xFF")
+                {
+                        return 'image/jpeg';
+                }
+                elseif (substr($this->file->body, 0, 2) === "\x42\x4D")
+                {
+                        return 'image/bmp';
+                }
+                elseif (substr($this->file->body, 0, 4) === "\x00\x00\x01\x00")
+                {
+                        return 'image/vnd.microsoft.icon';
+                }
+                else
+                {
+                        return false;
+                }
+        }
+
+        /**
+         * Sniff HTML
+         *
+         * @return string Actual Content-Type
+         */
+        public function feed_or_html()
+        {
+                $len = strlen($this->file->body);
+                $pos = strspn($this->file->body, "\x09\x0A\x0D\x20");
+
+                while ($pos < $len)
+                {
+                        switch ($this->file->body[$pos])
+                        {
+                                case "\x09":
+                                case "\x0A":
+                                case "\x0D":
+                                case "\x20":
+                                        $pos += strspn($this->file->body, "\x09\x0A\x0D\x20", $pos);
+                                        continue 2;
+
+                                case '<':
+                                        $pos++;
+                                        break;
+
+                                default:
+                                        return 'text/html';
+                        }
+
+                        if (substr($this->file->body, $pos, 3) === '!--')
+                        {
+                                $pos += 3;
+                                if ($pos < $len && ($pos = strpos($this->file->body, '-->', $pos)) !== false)
+                                {
+                                        $pos += 3;
+                                }
+                                else
+                                {
+                                        return 'text/html';
+                                }
+                        }
+                        elseif (substr($this->file->body, $pos, 1) === '!')
+                        {
+                                if ($pos < $len && ($pos = strpos($this->file->body, '>', $pos)) !== false)
+                                {
+                                        $pos++;
+                                }
+                                else
+                                {
+                                        return 'text/html';
+                                }
+                        }
+                        elseif (substr($this->file->body, $pos, 1) === '?')
+                        {
+                                if ($pos < $len && ($pos = strpos($this->file->body, '?>', $pos)) !== false)
+                                {
+                                        $pos += 2;
+                                }
+                                else
+                                {
+                                        return 'text/html';
+                                }
+                        }
+                        elseif (substr($this->file->body, $pos, 3) === 'rss'
+                                || substr($this->file->body, $pos, 7) === 'rdf:RDF')
+                        {
+                                return 'application/rss+xml';
+                        }
+                        elseif (substr($this->file->body, $pos, 4) === 'feed')
+                        {
+                                return 'application/atom+xml';
+                        }
+                        else
+                        {
+                                return 'text/html';
+                        }
+                }
+
+                return 'text/html';
+        }
+}
+