function pieRefererList($resource, $context)
{
$page = new Page();
$referers = array();
// Traverse all pages and search for matching links.
for ($item = $page->first(); $item; $item = $page->next()) {
if (!$page->read($item, 0)) {
return false;
}
// Check for aliases that refer to originals.
if ($page->meta['type'] == "alias" && $page->meta['original'] == $resource) {
$referers[$item] = true;
continue;
}
if ($context == "page") {
if (!$page->meta['pages']) {
continue;
}
$links = explode(" ", $page->meta['pages']);
} elseif ($context == "file") {
if (!$page->meta['files']) {
continue;
}
$links = explode(" ", $page->meta['files']);
} else {
return false;
}
if (!in_array($resource, $links)) {
continue;
}
// $item refers to $resource.
$referers[$item] = true;
}
$referers = array_keys($referers);
sort($referers);
return $referers;
}
}
fclose($f);
} elseif (file_exists($preview)) {
// Read the data from the temporary preview file.
if (!($dump = file_get_contents($preview))) {
pieError("SourceReadError");
}
$meta = pieExplodePage($dump);
$_REQUEST['source'] = trim($meta['source']);
} else {
// No source available.
pieError("SourceReadError");
}
// Handle partial updates.
if (@$_REQUEST['section'] > 0 && $page->exists(@$_REQUEST['page'])) {
if (!$page->read($_REQUEST['page'], 0)) {
pieError('SourceReadError');
}
if ($page->meta['type'] != 'full' && $page->meta['type'] != 'shadow') {
pieError('SectionNotFound');
}
// Determine the text that come before and after the edited section.
$section = new Section();
if (($p = $section->offset($page->source, $_REQUEST['section'])) === false) {
pieError('SectionNotFound');
}
if (($old = $section->extract($page->source, $_REQUEST['section'])) === false) {
pieError('SectionNotFound');
}
$_REQUEST['source'] = substr($page->source, 0, $p) . rtrim($_REQUEST['source']) . "\n\n" . substr($page->source, $p + strlen($old));
}
$hint_edit = $GLOBALS['pie']['locale']->key("Edit");
$ip = pieMakeString('[[$^icon_link]]');
foreach ($referers as $name => $i) {
$n++;
print '<tr class="' . ($n % 2 ? "oddRow" : "evenRow") . '">' . '<td>' . pieMakeLink(htmlspecialchars($name), array('page' => $name), array('class' => "itemLink")) . '</td>' . "<td style=\"text-align: right;\">{$i}</td>" . '<td>' . pieMakeLink("<img src=\"{$ip}/information.png\" />", array('action' => "pageinfo", 'page' => $name), array('title' => $hint_info)) . '</td>' . '<td>' . pieMakeLink("<img src=\"{$ip}/page_edit.png\" />", array('action' => "edit", 'page' => $name), array('title' => $hint_edit)) . '</td>' . "</tr>\n";
}
print "</table>\n";
} elseif (@$_REQUEST['mode'] == "links") {
// Walk all pages and examine their links.
// Collect a list of _links_, i. e. destinations of broken links.
$page = new Page();
$file = new File();
$deadpages = array();
$deadfiles = array();
for ($name = $page->first(); $name; $name = $page->next()) {
if (!$page->read($name, 0)) {
pieError("SourceReadError");
}
if ($page->meta['pages']) {
// There are page links that are to be checked.
$list = explode(" ", $page->meta['pages']);
foreach ($list as $i) {
if (!$page->exists($i)) {
$deadpages[$i]++;
}
}
}
if ($page->meta['files']) {
// There are file links that are to be checked.
$list = explode(" ", $page->meta['files']);
foreach ($list as $i) {
$_REQUEST['page'] = pieGetOption(@$_REQUEST['page']);
$page = new Page();
$page->name = $_REQUEST['page'];
// Sanity check:
if (!$page->isValidName($_REQUEST['page'])) {
pieError("PageNameInvalid");
}
if (!$page->exists($_REQUEST['page'])) {
pieError("PageNotFound");
}
if (intval($_REQUEST['stamp']) > 0) {
$stamp = $_REQUEST['stamp'];
} else {
$stamp = 0;
}
$page->read($_REQUEST['page'], $stamp);
$stamp = $page->meta['stamp'];
// Check for alias:
if ($page->meta['type'] == "alias") {
pieError("AliasRedirect", array('page' => htmlspecialchars($page->meta['original']), 'alias' => htmlspecialchars($_REQUEST['page'])));
}
// Prepare output:
$data = array('page_count' => 0, 'file_count' => 0);
$data['date'] = date($GLOBALS['pie']['time_format'], $page->meta['stamp']);
$data['author'] = htmlspecialchars($page->meta['author']);
$data['comment'] = "—";
if ($page->meta['comment']) {
$data['comment'] = htmlspecialchars($page->meta['comment']);
}
$history = $page->history($page->name);
$data['history_count'] = count($history);
public function read($name = "Article")
{
parent::read($name);
}
if (!($meta = file_get_contents($preview))) {
pieError("SourceReadError");
}
$meta = pieExplodePage($meta);
foreach ($meta as $k => $v) {
$_REQUEST[$k] = $v;
}
} else {
// No source available.
pieError("SourceEmpty");
}
$_REQUEST['source'] = preg_replace('/\\x0a{3,}/s', "\n\n", @$_REQUEST['source']);
// Prepare the previous version for examination.
$current = new Page();
if ($page->exists($page->name)) {
if (!$current->read($page->name, 0)) {
pieError('SourceReadError');
}
if (trim($current->source) == $_REQUEST['source']) {
// No changes have been made.
pieError('NoChanges');
}
}
// Handle section updates.
$_REQUEST['section'] = intval(@$_REQUEST['section']);
if ($_REQUEST['section'] > 0 && $page->exists($page->name)) {
if ($current->meta['type'] == 'alias') {
pieError('SectionNotFound');
}
// Determine the text chunks that come before and after the edited
// section.
print '<?xml version="1.0" encoding="utf-8"?>
<rss version="2.0">
<channel>
';
if (file_exists($GLOBALS['pie']['custom_path'] . '/rss_head.xml')) {
include $GLOBALS['pie']['custom_path'] . '/rss_head.xml';
} else {
print ' <title>RSS Feed</title>
<link>http://' . $_SERVER['SERVER_NAME'] . '/</link>
<language>' . $GLOBALS['pie']['default_locale'] . '</language>
<generator>pie</generator>
<webMaster>' . $_SERVER['SERVER_ADMIN'] . '</webMaster>
';
}
list($stamp) = explode("\t", $data[0]);
print "\t\t<pubDate>" . date('r', $stamp) . "</pubDate>\n";
foreach ($data as $i) {
list($stamp, $p) = explode("\t", $i, 2);
if (!$page->read($p, 0)) {
continue;
}
if ($page->meta['type'] == 'alias') {
continue;
}
if (substr($GLOBALS['pie']['page_link'], -10) != '?[[$page]]') {
$p = urlencode($p);
}
$link = 'http://' . $_SERVER['SERVER_NAME'] . ($GLOBALS['pie']['page_link'][0] == '/' ? '' : '/') . pieMakeString($GLOBALS['pie']['page_link'], array('page' => $p));
print "\t\t<item>\n" . "\t\t\t<title>" . htmlspecialchars($page->meta['title']) . "</title>\n" . "\t\t\t<link>" . $link . "</link>\n" . "\t\t\t<description>" . ($page->meta['comment'] ? htmlspecialchars($page->meta['comment']) : '') . "</description>\n" . "\t\t\t<author>" . htmlspecialchars($page->meta['author']) . "</author>\n" . "\t\t\t<pubDate>" . date('r', $page->meta['stamp']) . "</pubDate>\n" . "\t\t\t<guid>{$link}</guid>\n" . "\t\t</item>\n";
}
print "\t</channel>\n</rss>\n";
include_once "{$lib}/share/stdio.php";
include_once "{$lib}/share/string.php";
pieLoadLocale();
pieHead();
if (@$_REQUEST['page']) {
// Preparations for pages.
$_REQUEST['page'] = pieGetOption($_REQUEST['page']);
$resource = new Page();
$resource->name = $_REQUEST['page'];
if (!$resource->isValidName($_REQUEST['page'])) {
pieError("PageNameInvalid");
}
if (!$resource->exists($_REQUEST['page'])) {
pieError("PageNotFound");
}
if (!$resource->read($_REQUEST['page'], 0)) {
pieError("SourceReadError");
}
if ($resource->meta['type'] == "alias") {
pieError("AliasRedirect", array('page' => htmlspecialchars($resource->meta['original']), 'alias' => htmlspecialchars($_REQUEST['page'])));
}
$context = 'page';
$history = $resource->history($_REQUEST['page']);
} elseif (@$_REQUEST['file']) {
// Preparations for files.
$_REQUEST['file'] = pieGetOption($_REQUEST['file']);
$resource = new File();
$resource->name = $_REQUEST['file'];
if (!$resource->isValidName($_REQUEST['file'])) {
pieError("FileNameInvalid");
}
}
return htmlspecialchars($string);
}
pieHead();
$_REQUEST['page'] = pieCleanString(@$_REQUEST['page']);
$page = new Page();
$page->name = $_REQUEST['page'];
if (!$page->isValidName($_REQUEST['page'])) {
pieError("PageNameInvalid");
}
if (!$page->exists($_REQUEST['page'])) {
pieError("PageNotFound");
}
if (!(($_REQUEST['stamp'] = intval($_REQUEST['stamp'])) > 0)) {
$_REQUEST['stamp'] = 0;
}
if (!$page->read($_REQUEST['page'], $_REQUEST['stamp'])) {
pieError("SourceReadError");
}
if ($page->meta['type'] == "alias") {
pieError("AliasRedirect", array('page' => htmlspecialchars($page->meta['original']), 'alias' => htmlspecialchars($_REQUEST['page'])));
}
// Format and display the page source:
$source = $page->source;
$source = str_replace('\\[', chr(1), $source);
$source = str_replace('\\]', chr(2), $source);
$source = nl2br(hilightBrackets($source));
$source = str_replace(chr(1), '\\[', $source);
$source = str_replace(chr(2), '\\]', $source);
pieNotice("SourceOfPage", array('source' => $source));
pieTail();
function writePage($name, $meta)
{
if (!$meta['stamp']) {
$meta['stamp'] = time();
}
$page = new Page();
if (!$page->isValidName($name)) {
return false;
}
if (!$page->exists($name)) {
return $this->_writeFullSource($name, $meta);
}
// Determine the current diff level.
$work = $meta;
$work['parent'] = 0;
for ($level = 0; $work['type'] != 'full'; $level++) {
if (!$page->read($name, $work['parent'])) {
return false;
}
$work = $page->meta;
}
$max = intval($GLOBALS['pie']['max_diff_level']);
if ($max > 0 && $level > $max) {
return $this->_writeFullSource($name, $meta);
}
// Determine the version to be referred to as parent.
if (!($current = $this->readPage($name, 0))) {
return false;
}
$meta['parent'] = $current['stamp'];
// Create a diff between the latest version and the new one.
if (!($diff = $this->diff($current['source'], $meta['source']))) {
return false;
}
if (strlen($meta['source']) - strlen($diff) < 100) {
// The diff is not much smaller (or even larger)
// than the original source.
// Write a full version instead of just a diff.
unset($meta['parent']);
return $this->_writeFullSource($name, $meta);
}
// Note:
// At this stage, it is decided to write a diff instead
// of a full version.
// If the current page is an alias, delete it altogether,
// to be replaced by a real page with the current data.
if ($current['type'] == 'alias') {
if (!$page->delete($name)) {
return false;
}
}
// Replace the latest shadow, if any.
$replace = false;
if ($current['type'] == 'shadow') {
$replace = true;
}
// Write a diff.
$page->name = $name;
$page->source = $diff;
$full = $meta['source'];
unset($meta['source']);
$meta['type'] = 'diff';
$page->meta = $meta;
if (!$page->write($replace)) {
return false;
}
// Create an additional shadow record including the full source.
$page->source = $full;
$page->meta['type'] = 'shadow';
return $page->write(false);
}
$_REQUEST['file'] = pieGetOption($_REQUEST['file']);
$target = $_REQUEST['file'];
$context = "file";
} else {
pieError("ActionInvalid");
}
// Page or file?
if ($context == "page") {
$object = new Page();
if (!$object->isValidName($target)) {
pieError("PageNameInvalid");
}
if (!$object->exists($target)) {
pieError("PageNotFound");
}
if (!$object->read($target, 0)) {
pieError("SourceReadError");
}
// Lock the page.
if (!$object->lock($GLOBALS['pie']['user'])) {
pieError("PageLockError");
}
} elseif ($context == "file") {
$object = new File();
if (!$object->isValidName($target)) {
pieError("FileNameInvalid");
}
if (!$object->exists($target)) {
pieError("FileNotFound");
}
if (!$object->read($target, 0)) {
$_REQUEST['file'] = pieGetOption($_REQUEST['file']);
$source = $_REQUEST['file'];
$context = "file";
} else {
pieError("ActionInvalid");
}
// Validate the source: page or file?
if ($context == "page") {
$object = new Page();
if (!$object->isValidName($source)) {
pieError("PageNameInvalid");
}
if (!$object->exists($source)) {
pieError("PageNotFound");
}
if (!$object->read($source, 0)) {
pieError("SourceReadError");
}
// Lock the page.
if (!$object->lock($GLOBALS['pie']['user'])) {
pieError("PageLockError");
}
} elseif ($context == "file") {
$object = new File();
if (!$object->isValidName($source)) {
pieError("FileNameInvalid");
}
if (!$object->exists($source)) {
pieError("FileNotFound");
}
if (!$object->read($source, 0)) {
pieNotice('PageNotFound');
pieError('GotoForm');
}
// Print the pages:
$n = 0;
pieNotice("TableHead");
sort($data);
foreach ($data as $name) {
$n++;
print '<tr class="' . ($n % 2 ? "oddRow" : "evenRow") . "\">\n" . "<td>" . pieMakeLink(htmlspecialchars($name), array('action' => "goto", 'page' => $name), array('class' => "itemLink")) . "</td>\n" . "</tr>\n";
}
print "</table>\n";
pieTail();
exit;
}
if (!$page->read($string, 0)) {
pieHead();
pieError("SourceReadError");
}
// Handle aliases:
if ($page->meta['type'] == "alias") {
$original = $page->meta['original'];
if ($GLOBALS['pie']['auto_redirect']) {
header("Location: " . pieMakeString($GLOBALS['pie']['redirect_base_url']) . "?action=goto&page=" . rawurlencode($original) . "&referer=" . rawurlencode($string));
exit;
} else {
pieHead();
pieError("AliasRedirect", array('page' => htmlspecialchars($original), 'alias' => htmlspecialchars($string)));
}
}
// Compile source:
