$filesData = simplexml_load_file("{$itemPath}/{$id}_files.xml");
} else {
BRfatal("File metadata not found!");
}
$imageStackInfo = findImageStack($subPrefix, $filesData);
if ($imageStackInfo['imageFormat'] == 'unknown') {
BRfatal('Couldn\'t find image stack');
}
$imageFormat = $imageStackInfo['imageFormat'];
$archiveFormat = $imageStackInfo['archiveFormat'];
$imageStackFile = $itemPath . "/" . $imageStackInfo['imageStackFile'];
if ("unknown" == $imageFormat) {
BRfatal("Unknown image format");
}
if ("unknown" == $archiveFormat) {
BRfatal("Unknown archive format");
}
$scanDataFile = "{$subItemPath}_scandata.xml";
$scanDataZip = "{$itemPath}/scandata.zip";
if (file_exists($scanDataFile)) {
checkPrivs($scanDataFile);
$scanData = simplexml_load_file($scanDataFile);
} else {
if (file_exists($scanDataZip)) {
checkPrivs($scanDataZip);
$cmd = 'unzip -p ' . escapeshellarg($scanDataZip) . ' scandata.xml';
exec($cmd, $output, $retval);
if ($retval != 0) {
BRFatal("Could not unzip ScanData!");
}
$dump = join("\n", $output);
You should have received a copy of the GNU Affero General Public License
along with BookReader. If not, see <http://www.gnu.org/licenses/>.
*/
require_once 'BookReaderImages.inc.php';
function BRfatal($message)
{
header("HTTP/1.0 404 Not Found");
header("Content-type: text/plain");
print $message;
die(-1);
}
$allowedPages = array('title', 'cover', 'cover0', 'preview');
$allowedPattern = '#^(' . join('|', $allowedPages) . ')#';
$page = $_REQUEST['page'];
if (preg_match($allowedPattern, $page)) {
// Return image data
$bri = new BookReaderImages();
try {
$bri->serveLookupRequest($_REQUEST);
} catch (Exception $e) {
header("HTTP/1.0 404 Not Found");
header("Content-type: text/plain");
print "Error serving request:\n";
print " " . $e->getMessage() . "\n\n";
print "Debugging information:\n";
echo $e->getTraceAsString();
}
} else {
BRfatal("Bad or no page specified");
}
function getImageInfo($zipPath, $file)
{
global $exiftool;
$fileExt = strtolower(pathinfo($file, PATHINFO_EXTENSION));
$type = imageExtensionToType($fileExt);
// We look for all the possible tags of interest then act on the
// ones presumed present based on the file type
$tagsToGet = ' -ImageWidth -ImageHeight -FileType' . ' -BitsPerComponent -ColorSpace' . ' -BitDepth' . ' -BitsPerSample';
// tiff
$cmd = getUnarchiveCommand($zipPath, $file) . ' | ' . $exiftool . ' -S -fast' . $tagsToGet . ' -';
exec($cmd, $output);
$tags = array();
foreach ($output as $line) {
$keyValue = explode(": ", $line);
$tags[$keyValue[0]] = $keyValue[1];
}
$width = intval($tags["ImageWidth"]);
$height = intval($tags["ImageHeight"]);
$type = strtolower($tags["FileType"]);
switch ($type) {
case "jp2":
$bits = intval($tags["BitsPerComponent"]);
break;
case "tiff":
$bits = intval($tags["BitsPerSample"]);
break;
case "jpeg":
$bits = 8;
break;
case "png":
$bits = intval($tags["BitDepth"]);
break;
default:
BRfatal("Unsupported image type");
break;
}
$retval = array('width' => $width, 'height' => $height, 'bits' => $bits, 'type' => $type);
return $retval;
}
