getMainDir() . '/');
foreach ($item->getFiles() as $location => $fileInfo) {
$filename = substr($location, $baseLength);
if ($checkOldScandata) {
if ($filename == 'scandata.xml' || $filename == 'scandata.zip') {
$foundScandata = $filename;
}
}
if ($filename == $targetScandata) {
$foundScandata = $filename;
}
if (preg_match($imageFormatRegex, $filename)) {
$foundImageStack = $filename;
}
}
if ($foundScandata && $foundImageStack) {
return true;
}
return false;
}
// Finds the prefix to use for the book given the part of the URL trailing after /stream/
public static function findPrefix($urlPortion)
{
if (!preg_match('#[^/&?]+#', $urlPortion, $matches)) {
// URL portion was empty or started with /, &, or ? -- no item identifier
return false;
}
$prefix = $matches[0]; // item identifier
// $$$ Currently swallows the rest of the URL.
// If we want to support e.g. /stream/itemid/subdir/prefix/page/23 will need to adjust.
if (preg_match('#[^/&?]+/([^&?]+)#', $urlPortion, $matches)) {
// Match is everything after item identifier and slash, up to end or ? or &
// e.g. itemid/{match/these/parts}?foo=bar
$prefix = $matches[1]; // sub prefix --
}
return $prefix;
}
// $$$ would be cleaner to use different templates instead of the uiMode param
//
// @param subprefix Optional prefix to display a book inside an item (e.g. if does not match identifier)
public static function draw($server, $mainDir, $identifier, $subPrefix, $title,
$coverLeaf=null, $titleStart='Internet Archive', $uiMode='full', $protected = false, $isAdmin=false)
{
// Set title to default if not set
if (!$title) {
$title = 'BookReader';
}
$id = $identifier;
// manually update with Launchpad version number at each checkin so that browsers
// do not use old cached version
// see https://bugs.launchpad.net/gnubook/+bug/330748
$version = "3.0.9";
if (BookReader::getDevHost($server)) {
// On dev host - add time to force reload
// If debugging on IE, remove this line otherwise breakpoints will be invalid after reload
$version .= '_' . time();
}
if ("" == $id) {
echo "No identifier specified!";
die(-1);
}
$metaURL = BookReader::jsMetadataURL($server, $identifier, $mainDir, $subPrefix);
$metaURL .= "&version=" . $version;
$locateURL = BookReader::jsLocateURL($identifier, $subPrefix);
$coverThumb = 'http://www.archive.org/download/' . $identifier . '/'. $subPrefix . '/page/cover_w114.jpg';
// startup-up-image must be exactly 320x460
//$startupImage = 'http://www.archive.org/download/' . $identifier . '/'. $subPrefix . '/page/cover_w512.jpg';
?>
<? echo $title; ?>
Internet Archive BookReader -
Internet Archive BookReader
Internet Archive BookReader
Search results
$identifier, 'itemPath' => $mainDir, 'server' => $server );
if ($subPrefix) {
$params['subPrefix'] = $subPrefix;
}
$keys = array_keys($params);
$lastParam = end($keys);
$url = "http://{$serverBaseURL}/BookReader/BookReaderJSIA.php?";
foreach($params as $param=>$value) {
$url .= $param . '=' . $value;
if ($param != $lastParam) {
$url .= '&';
}
}
return $url;
}
public static function jsMetadataURLForIE7($server, $identifier, $mainDir, $subPrefix = '')
{
$serverBaseURL = BookReader::serverBaseURL($server);
$params = array( 'id' => $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
$urlParts = BookReader::parsePath($path);
// Check for non-handled cases
$required = array('identifier', 'operator', 'operand');
foreach ($required as $key) {
if (!array_key_exists($key, $urlParts)) {
return null;
}
}
$identifier = $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':
// 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, '', '&');
}
// Asking for a non-preview page
$query['page'] = $filename;
return 'http://' . $serverBaseURL . '/BookReader/BookReaderImages.php?' . http_build_query($query, '', '&');
default:
// Unknown operator
return null;
}
return null; // was not handled
}
public static function browserFromUserAgent($userAgent) {
$browserPatterns = array(
'ipad' => '/iPad/',
'iphone' => '/iPhone/', // Also covers iPod Touch
'android' => '/Android/',
);
foreach ($browserPatterns as $browser => $pattern) {
if (preg_match($pattern, $userAgent)) {
return $browser;
}
}
return null;
}
// $$$ Ideally we will not rely on user agent, but for the moment we do
public static function paramsFromUserAgent($userAgent) {
// $$$ using 'embed' here for devices with assumed small screens -- really should just use CSS3 media queries
$browserParams = array(
'ipad' => array( 'ui' => 'touch' ),
'iphone' => array( 'ui' => 'embed', 'mode' => '1up' ),
'android' => array( ), // Presence of this OS doesn't tell us much about device
);
$browser = BookReader::browserFromUserAgent($userAgent);
if ($browser) {
return $browserParams[$browser];
}
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;
}
}
?>