51 lines
1.4 KiB
PHP
51 lines
1.4 KiB
PHP
<?php
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# do not enable recursive tars by default
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$TAR_FLAGS = "--no-recursion";
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# send content length for browsers to display the progress bar
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# note : won't work if the http server uses Chunked transfer encoding (http://en.wikipedia.org/wiki/Chunked_transfer_encoding)
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# probably the case with gzip content-encoding.
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# For this we need to tar files to /dev/null before the real tar
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$SEND_CONTENT_LENGTH = true;
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########################
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$bizouRootFromHere = '../..';
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require "$bizouRootFromHere/config.php";
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if (isset($_SERVER["PATH_INFO"])) {
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$simplePath = $_SERVER["PATH_INFO"];
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} else {
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$simplePath = '/';
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}
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if (strpos($simplePath, '..') !== false) die(".. found in url");
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$realDir = "$bizouRootFromHere/".IMAGES_DIR.$simplePath;
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if ( ! is_dir($realDir) ) {
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header("HTTP/1.1 404 Not Found");
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die("Directory Not Found");
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}
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# change to the parent directory
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chdir(dirname($realDir));
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$filesarg = escapeshellarg(basename($realDir))."/*";
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# compute and send content-length header
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if ($SEND_CONTENT_LENGTH) {
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$out = exec("tar $TAR_FLAGS --totals -cf /dev/null $filesarg 2>&1");
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preg_match('/^Total bytes written: ([0-9]+) /', $out, $matches);
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$totalsize = $matches[1];
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header("Content-Length: $totalsize");
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}
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# final step : stream the directory content via tar
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header('Content-Type: application/x-tar');
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header('Content-Disposition: attachment; filename="'.basename($realDir).'.tar"');
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passthru("tar $TAR_FLAGS -c $filesarg");
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?>
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