From 2020bd44c18f31ca6993ffd77b8296864fb374cf Mon Sep 17 00:00:00 2001
From: conradverm <conradverm@c91229c3-7414-0410-bfa2-8a42b809f60b>
Date: Fri, 19 Oct 2007 13:25:18 +0000
Subject: [PATCH] KTS-673 "The search algorithm needs some work" Updated. Added Exif extractor

---
 search2/indexing/extractors/ExifExtractor.inc.php | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+), 0 deletions(-)
 create mode 100644 search2/indexing/extractors/ExifExtractor.inc.php

diff --git a/search2/indexing/extractors/ExifExtractor.inc.php b/search2/indexing/extractors/ExifExtractor.inc.php
new file mode 100644
index 0000000..12311fa
--- /dev/null
+++ b/search2/indexing/extractors/ExifExtractor.inc.php
@@ -0,0 +1,50 @@
+<?php
+
+class ExifExtractor extends DocumentExtractor
+{
+	public function getDisplayName()
+	{
+		return _kt('Exif Extractor');
+	}
+
+	public function getSupportedMimeTypes()
+	{
+		return array(
+			'image/tiff','image/jpeg'
+		);
+	}
+
+	public function extractTextContent()
+	{
+		$exif = exif_read_data($this->sourcefile, 0, true);
+		$content = '';
+		foreach ($exif as $key => $section)
+		{
+			foreach ($section as $name => $val)
+			{
+				if (is_numeric($val))
+				{
+					// no point indexing numeric content. it will be ignored anyways!
+					continue;
+				}
+				$content .= "$val\n";
+			}
+		}
+
+		$result = file_put_contents($this->targetfile, $content);
+
+		return false !== $result;
+	}
+
+	public function diagnose()
+	{
+		if (!function_exists('exif_read_data'))
+		{
+			return sprintf(_kt('The Exif extractor requires the module exif php extension. Please include this in the php.ini.'));
+		}
+
+		return null;
+	}
+}
+
+?>
\ No newline at end of file
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