X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=BookReaderIA%2Finc%2FBookReader.inc;h=3fa885cc1988861b581cac3e20cf75d546e4571d;hb=32dcce1c6c33c22670b8c651356595c6a8c2a0ad;hp=16e4615fa9a614b6f72ed8403b8a09c2af094ecf;hpb=3885f1baf71b6ac4deda25ddba1c988633f7b1a2;p=bookreader.git
diff --git a/BookReaderIA/inc/BookReader.inc b/BookReaderIA/inc/BookReader.inc
index 16e4615..3fa885c 100644
--- a/BookReaderIA/inc/BookReader.inc
+++ b/BookReaderIA/inc/BookReader.inc
@@ -1,8 +1,23 @@
+
+
<? echo $title; ?>
+
+
+
+
+
-
+
-
-Internet Archive BookReader
-
-Internet Archive Bookreader
-
+
+// Internet Archive BookReader
+//
+// Internet Archive Bookreader
+//
+*/
+?>
+
+Internet Archive BookReader
+
-
-
-
-
-
-
-
$identifier, 'itemPath' => $mainDir, 'server' => $server );
if ($subPrefix) {
@@ -204,5 +239,135 @@ class BookReader
return $url;
}
+ // Return the URL for the requested /download/$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) {
+ $browserPatterns = array(
+ 'ipad' => '/iPad/',
+ 'iphone' => '/iPhone/', // Also cover iPod Touch
+ 'android' => '/Android/',
+ );
+
+ foreach ($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( 'ui' => 'embed', 'mode' => '1up' ),
+ );
+
+ $browser = BookReader::browserFromUserAgent($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;
+ }
+
}
- ?>
+
+?>