aboutsummaryrefslogtreecommitdiffstats
path: root/vendor/simplepie/simplepie/library/SimplePie/Content/Type/Sniffer.php
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/simplepie/simplepie/library/SimplePie/Content/Type/Sniffer.php')
-rw-r--r--vendor/simplepie/simplepie/library/SimplePie/Content/Type/Sniffer.php283
1 files changed, 9 insertions, 274 deletions
diff --git a/vendor/simplepie/simplepie/library/SimplePie/Content/Type/Sniffer.php b/vendor/simplepie/simplepie/library/SimplePie/Content/Type/Sniffer.php
index b3a8cf378..f37257f8a 100644
--- a/vendor/simplepie/simplepie/library/SimplePie/Content/Type/Sniffer.php
+++ b/vendor/simplepie/simplepie/library/SimplePie/Content/Type/Sniffer.php
@@ -5,7 +5,7 @@
* A PHP-Based RSS and Atom Feed Framework.
* Takes the hard work out of managing a complete RSS/Atom solution.
*
- * Copyright (c) 2004-2016, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
+ * Copyright (c) 2004-2022, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
@@ -41,280 +41,15 @@
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
*/
+use SimplePie\Content\Type\Sniffer;
-/**
- * Content-type sniffing
- *
- * Based on the rules in http://tools.ietf.org/html/draft-abarth-mime-sniff-06
- *
- * This is used since we can't always trust Content-Type headers, and is based
- * upon the HTML5 parsing rules.
- *
- *
- * This class can be overloaded with {@see SimplePie::set_content_type_sniffer_class()}
- *
- * @package SimplePie
- * @subpackage HTTP
- */
-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;
- }
-
- return $official;
- }
- elseif ($official === 'text/html')
- {
- return $this->feed_or_html();
- }
+class_exists('SimplePie\Content\Type\Sniffer');
- return $official;
- }
+// @trigger_error(sprintf('Using the "SimplePie_Content_Type_Sniffer" class is deprecated since SimplePie 1.7, use "SimplePie\Content\Type\Sniffer" instead.'), \E_USER_DEPRECATED);
- 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/octet-stream';
- }
-
- 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';
- }
-
- 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';
- }
-
- 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\xEF\xBB\xBF");
-
- 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';
- }
+if (\false) {
+ /** @deprecated since SimplePie 1.7, use "SimplePie\Content\Type\Sniffer" instead */
+ class SimplePie_Content_Type_Sniffer extends Sniffer
+ {
+ }
}
-
-class_alias('SimplePie_Content_Type_Sniffer', 'SimplePie\Content\Type\Sniffer', false);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-18 14:07:02 +0000