<? echo $title; ?>

- Content Problems | Report Bugs | Texts Collection | @@ -170,11 +317,14 @@ class BookReader $(document).ready(function() { $(window).trigger('resize'); }); + + // Usage stats + if(window.archive_analytics) { window.archive_analytics.values['bookreader'] = 'open'}; $identifier, 'itemPath' => $mainDir, 'server' => $server ); + if ($subPrefix) { + $params['subPrefix'] = $subPrefix; + } + + $keys = array_keys($params); + $lastParam = end($keys); + $url = "http://{$serverBaseURL}/BookReader/ie7/BookReaderJSIA.php?"; + foreach($params as $param=>$value) { + $url .= $param . '=' . $value; + if ($param != $lastParam) { + $url .= '&'; + } + } + + return $url; + } + + + // This returns a URL that finds the item then returns a redirect to BookReaderJSIA.php + // on the item's server. + public static function jsLocateURL($identifier, $subPrefix = '') + { + $locateURL = 'http://www.archive.org/bookreader/BookReaderJSLocate.php?id=' . $identifier; + if ($subPrefix) { + $locateURL .= '&subPrefix=' . $subPrefix; + } + return $locateURL; + } + // Return the URL for the requested /download/$path, or null public static function getURL($path, $item) { // $path should look like {itemId}/{operator}/{filename} // Other operators may be added - $parts = preg_split('#/#', $path, 3); - if (count($parts) != 3) { - return null; + $urlParts = BookReader::parsePath($path); + + // Check for non-handled cases + $required = array('identifier', 'operator', 'operand'); + foreach ($required as $key) { + if (!array_key_exists($key, $urlParts)) { + return null; + } } - $identifier = $parts[0]; - $operator = $parts[1]; - $filename = $parts[2]; + + $identifier = $urlParts['identifier']; + $operator = $urlParts['operator']; + $filename = $urlParts['operand']; + $subPrefix = $urlParts['subPrefix']; $serverBaseURL = BookReader::serverBaseURL($item->getServer()); - + + // Baseline query params + $query = array( + 'id' => $identifier, + 'itemPath' => $item->getMainDir(), + 'server' => $serverBaseURL + ); + if ($subPrefix) { + $query['subPrefix'] = $subPrefix; + } + switch ($operator) { case 'page': - // Find bookId and which page was requested - $pathParts = pathinfo($filename); - // Look for preview request - if (preg_match('/^(.*)_(cover|title|preview)$/', $pathParts['filename'], $matches) === 0) { - return null; + // Look for old-style preview request - e.g. {identifier}_cover.jpg + if (preg_match('/^(.*)_((cover|title|preview).*)/', $filename, $matches) === 1) { + // Serve preview image + $page = $matches[2]; + $query['page'] = $page; + return 'http://' . $serverBaseURL . '/BookReader/BookReaderPreview.php?' . http_build_query($query, '', '&'); + } + + // New-style preview request - e.g. cover_thumb.jpg + if (preg_match('/^(cover|title|preview)/', $filename, $matches) === 1) { + $query['page'] = $filename; + return 'http://' . $serverBaseURL . '/BookReader/BookReaderPreview.php?' . http_build_query($query, '', '&'); } - $bookId = $matches[1]; - $page = $matches[2]; - $query = array( - 'id' => $identifier, - 'bookId' => $bookId, - 'itemPath' => $item->getMainDir(), - 'server' => $serverBaseURL, - 'page' => $page, - ); - return 'http://' . $serverBaseURL . '/BookReader/BookReaderPreview.php?' . http_build_query($query, '', '&'); + + // Asking for a non-preview page + $query['page'] = $filename; + return 'http://' . $serverBaseURL . '/BookReader/BookReaderImages.php?' . http_build_query($query, '', '&'); default: + // Unknown operator return null; } @@ -297,6 +500,42 @@ class BookReader } return array(); } + + public static function parsePath($path) { + // Parse the BookReader path and return the parts + // e.g. itemid/some/sub/dir/page/cover.jpg -> array( 'identifier' => 'itemid', 'subPrefix' => 'some/sub/dir', + // 'operator' => 'page', 'filename' => 'cover.jpg') + + $parts = array(); + + // Pull off query, e.g. ?foo=bar + if (preg_match('#(.*?)(\?.*)#', $path, $matches) === 1) { + $parts['query'] = $matches[2]; + $path = $matches[1]; + } + + // Pull off identifier + if (preg_match('#[^/&?]+#', $path, $matches) === 0) { + // no match + return $parts; + } + $parts['identifier'] = $matches[0]; + $path = substr($path, strlen($matches[0])); + + // Look for operators + // The sub-prefix can be arbitrary, so we match up until the first operator + $operators = '(' . join('|', self::$downloadOperators) . ')'; + $pattern = '#(?P.*?)/(?P' . $operators . ')/(?P.*)#'; + if (preg_match($pattern, $path, $matches) === 1) { + $parts['subPrefix'] = substr($matches['subPrefix'], 1); // remove leading '/' + $parts['operator'] = $matches['operator']; + $parts['operand'] = $matches['operand']; + } else { + $parts['subPrefix'] = $path; + } + + return $parts; + } }