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54 lines
1.3 KiB
54 lines
1.3 KiB
<?php |
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require(__DIR__ . '/../constants.php'); |
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require(LIB_PATH . '/lib_rss.php'); //Includes class autoloader |
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require(LIB_PATH . '/favicons.php'); |
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require(LIB_PATH . '/http-conditional.php'); |
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function show_default_favicon($cacheSeconds = 3600) { |
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global $default_favicon; |
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header('Content-Disposition: inline; filename="default_favicon.ico"'); |
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$default_mtime = @filemtime($default_favicon); |
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if (!httpConditional($default_mtime, $cacheSeconds, 2)) { |
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readfile($default_favicon); |
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} |
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} |
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$id = isset($_SERVER['QUERY_STRING']) ? $_SERVER['QUERY_STRING'] : '0'; |
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if (!ctype_xdigit($id)) { |
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$id = '0'; |
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} |
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$txt = $favicons_dir . $id . '.txt'; |
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$ico = $favicons_dir . $id . '.ico'; |
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$ico_mtime = @filemtime($ico); |
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$txt_mtime = @filemtime($txt); |
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header('Content-Type: image/x-icon'); |
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if ($ico_mtime == false || $ico_mtime < $txt_mtime || ($ico_mtime < time() - (rand(15, 20) * 86400))) { |
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if ($txt_mtime == false) { |
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show_default_favicon(1800); |
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exit(); |
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} |
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// no ico file or we should download a new one. |
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$url = file_get_contents($txt); |
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if (!download_favicon($url, $ico)) { |
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// Download failed |
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if ($ico_mtime == false) { |
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show_default_favicon(86400); |
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exit(); |
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} else { |
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touch($ico); |
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} |
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} |
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} |
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header('Content-Disposition: inline; filename="' . $id . '.ico"'); |
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if (!httpConditional($ico_mtime, rand(14, 21) * 86400, 2)) { |
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readfile($ico); |
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}
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