83 lines
1.7 KiB
PHP
83 lines
1.7 KiB
PHP
<?php
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/**
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* Copyright (c) 2013 Georg Ehrke georg@ownCloud.com
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* This file is licensed under the Affero General Public License version 3 or
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* later.
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* See the COPYING-README file.
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*/
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namespace OC\Preview;
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class TXT extends Provider {
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private static $blacklist = array(
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'text/calendar',
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'text/vcard',
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);
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public function getMimeType() {
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return '/text\/.*/';
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}
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public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
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$mimetype = $fileview->getMimeType($path);
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if(in_array($mimetype, self::$blacklist)) {
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return false;
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}
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$content = $fileview->fopen($path, 'r');
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$content = stream_get_contents($content);
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//don't create previews of empty text files
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if(trim($content) === '') {
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return false;
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}
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$lines = preg_split("/\r\n|\n|\r/", $content);
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$fontSize = 5; //5px
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$lineSize = ceil($fontSize * 1.25);
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$image = imagecreate($maxX, $maxY);
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imagecolorallocate($image, 255, 255, 255);
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$textColor = imagecolorallocate($image, 0, 0, 0);
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foreach($lines as $index => $line) {
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$index = $index + 1;
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$x = (int) 1;
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$y = (int) ($index * $lineSize) - $fontSize;
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imagestring($image, 1, $x, $y, $line, $textColor);
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if(($index * $lineSize) >= $maxY) {
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break;
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}
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}
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$image = new \OC_Image($image);
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return $image->valid() ? $image : false;
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}
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}
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\OC\Preview::registerProvider('OC\Preview\TXT');
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class PHP extends TXT {
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public function getMimeType() {
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return '/application\/x-php/';
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}
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}
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\OC\Preview::registerProvider('OC\Preview\PHP');
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class JavaScript extends TXT {
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public function getMimeType() {
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return '/application\/javascript/';
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}
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}
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\OC\Preview::registerProvider('OC\Preview\JavaScript'); |