function importFile($file)
{
$name = decodeName($file);
if (!$_REQUEST['xpf']) {
// Treat the contents of the file as literal data.
if (!($source = file_get_contents($file))) {
return false;
}
return importPage($name, $source, array('stamp' => filemtime($file)));
}
// Treat the file as a page written in XPF:
// Build a version history.
if (!($f = fopen($file, "r"))) {
return false;
}
$history = array();
$head = array();
while ($line = fgets($f, 16384)) {
if ($line == "\n") {
if (!$head['stamp'] && !$head['size']) {
pieError("FormatError", array('page' => htmlspecialchars($name)));
}
$head['offset'] = ftell($f);
if (fseek($f, $head['size'], SEEK_CUR) == -1) {
pieError("FormatError", array('page' => htmlspecialchars($name)));
}
$history[$head['stamp']] = $head;
$head = array();
} elseif (preg_match('/^(\\w+)=(.+)$/', $line, $match)) {
$head[$match[1]] = $match[2];
} else {
pieError("FormatError", array('page' => htmlspecialchars($name)));
}
}
// Process all versions in order from oldest to latest.
ksort($history);
foreach ($history as $stamp => $head) {
if ($head['type'] == 'alias') {
importPage($name, '', $head);
continue;
}
if (fseek($f, $head['offset'], CUR_SET) == -1) {
pieError("FormatError", array('page' => htmlspecialchars($name)));
}
if (!($source = fread($f, $head['size']))) {
pieError("FormatError", array('page' => htmlspecialchars($name)));
}
unset($head['offset']);
if (!importPage($name, $source, $head)) {
return false;
}
}
fclose($f);
return true;
}
function checkFiles($list)
{
$f = new File();
$num = 0;
foreach ($list as $file) {
$name = decodeName($file);
$name = preg_replace('/\\s+\\d+$/', "", $name);
if (!$f->isValidName($name)) {
pieError("InvalidName", array('file' => htmlspecialchars($name)));
}
if ($f->exists($name)) {
pieError("FileExists", array('file' => htmlspecialchars($name)));
}
$num++;
}
return $num;
}