<?php
require('common.php');
function webpagetitle($url)
{
// too costly upon each note opening. enable with a cache?
/*$html = file_get_contents($url);
if ($html === FALSE)
{
return $url;
}
preg_match('/<title>(.*?)<\/title>/i', $html, $matches);
return isset($matches[1]) ? $matches[1] : $url;*/
return $url;
}
function savenote($title, $content)
{
global $dir;
$path = $dir . '/' . $title;
$filename = $path . '.md';
if (file_exists($filename))
{
$lastchanged = filemtime($filename);
$previous = $_POST['lastchanged'];
if ((int)$lastchanged > (int)$previous)
{
$tempcontent = file_get_contents($filename);
if ($tempcontent != $content)
{
$temptitle = $title . '_conflict_' . $lastchanged;
file_put_contents($dir . '/' . $temptitle . '.md', $tempcontent);
array_unshift($_SESSION['index'], $dir . '/' . $temptitle);
}
}
}
file_put_contents($filename, $content);
removefromindex($title);
array_unshift($_SESSION['index'], $path);
}
// main
// handle save actions
if (count($_POST) > 0)
{
$title = $_POST['title'];
$content = $_POST['content'];
if (isset($_POST['save']) || isset($_POST['home']) || isset($_POST['download']) || isset($_POST['preview']))
{
savenote($title, $content);
$previoustitle = $_POST['previoustitle'];
if ($title != $previoustitle)
{
rename($dir . '/' . $previoustitle . '.md', $dir . '/' . $previoustitle . '.md.del');
removefromindex($previoustitle);
}
if (isset($_POST['download']))
{
downloadnote($dir . '/' . $title . '.md');
exit;
}
else if (isset($_POST['home']))
{
header("Location: index.php");
exit;
}
else if (isset($_POST['preview']))
{
header("Location: note.php?preview=true&title=" . $title);
exit;
}
else
{
$noteurl = "Location: note.php?title=" . $title;
if (isset($_POST['cursorpos']))
{
$noteurl .= '&cursorpos=' . $_POST['cursorpos'];
}
header($noteurl);
exit;
}
}
else if (isset($_POST['delete']))
{
rename($dir . '/' . $title . '.md', $dir . '/' . $title . '.md.del');
removefromindex($title);
header("Location: index.php");
exit;
}
}
$title = '';
$content = false;
if (isset($_GET['new']))
{
$now = date("Y-m-d H.i.s", time());
$title = $now;
$content = "---\r\ndate: " . substr($now, 0, 10) . "\r\ntags: \r\n---\r\n";
savenote($title, $content);
}
else if (isset($_GET['title']))
{
$title = $_GET['title'];
$content = file_get_contents($dir . '/' . $title . '.md');
}
if ($content === false)
{
http_response_code(404);
die();
}
clearstatcache();
$lastchanged = filemtime($dir . '/' . $title . '.md');
$lines = substr_count($content, "\r\n");
$words = substr_count($content, " ") + $lines;
$chars = strlen($content);
$rows = max(20, $lines) * 2;
?>
<!DOCTYPE html>
<html>
<head>
<title><?php echo $title; ?></title>
<link rel="manifest" href="manifest.json" />
<meta name="theme-color" content="white" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
<meta charset="UTF-8">
<link rel="stylesheet" type="text/css" href="style.css">
<script>
function updatecursorpos()
{
cursorpos.value = document.getElementsByTagName("textarea")[0].selectionStart;
}
function setcursorpos()
{
params = new URLSearchParams(window.location.search);
document.getElementsByTagName("textarea")[0].selectionStart = params.get("cursorpos");
}
</script>
</head>
<body onload="setcursorpos()">
<!-- editor -->
<div <?php if(isset($_GET['preview'])) echo 'hidden'; ?>>
<form onsubmit="updatecursorpos()" action="note.php" method="POST">
<div>
<input type="submit" name="home" value="home" accesskey="h">
<input type="submit" name="save" value="save" accesskey="s">
<input type="submit" name="preview" value="preview" accesskey="p">
<input type="submit" name="download" value="download" accesskey="d">
<input type="submit" name="delete" value="delete">
<input hidden name="cursorpos" id="cursorpos">
<input hidden name="lastchanged" value="<?php echo $lastchanged; ?>">
<input autocomplete="off" class="title" name="title" value="<?php echo $title; ?>">
</div>
<div class="editor">
<textarea rows="<?php echo $rows; ?>" autofocus name="content" spellcheck="false"><?php echo $content; ?></textarea>
</div>
<input hidden name="previoustitle" value="<?php echo $title; ?>">
<div class="grey">
<?php echo '' . $lines . ' ' . $words . ' ' . $chars . ' ' . $title . '.md ' . date('Y-m-d H.i.s', $lastchanged); ?>
</div>
<?php echo linksdiv($content); ?>
</form>
</div>
<!-- preview -->
<div <?php if(!isset($_GET['preview'])) echo 'hidden'; ?>>
<div><a class="grey" href="note.php?title=<?php echo $title; ?>">back</a></div>
<?php
if (isset($_GET['preview']))
{
echo computepreview($title, $content);
}
?>
</div>
</body>
</html>