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6 files changed, 149 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
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+fsfeed.db
diff --git a/README b/README
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+++ b/README
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+# Introduction #
+fsfeed is a simple PHP app that turns directory paths into Atom feeds. It's useful to run it
+on an insecure file server to notify users of file or folder updates. Users can also download
+files from their newsreader, provided that the web server has read access to the file.
+
+By using a combination of the path and modification time as the URN of an entry, it can mark
+an updated file as new in the newsreader.
+
+fsfeed is not and probably never will be, recursive.
+
+# Usage #
+Just copy the fsfeed folder to where your web server can run it from and rename fsfeed.db.default to fsfeed.db.
diff --git a/feed.php b/feed.php
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+++ b/feed.php
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+<?php
+////
+// fsfeed/feed.php
+// turn a path into an Atom feed
+error_reporting(E_ALL|E_STRICT);
+ini_set('display_errors', 'On');
+$db = new PDO('sqlite:fsfeed.db');
+$stmt = $db->prepare('SELECT * FROM path WHERE id = ?');
+$stmt->execute(array($_GET['f']));
+$rows = current($stmt->fetchAll());
+$path = $rows['path'];
+header('Content-Type: application/atom+xml');
+echo '<?xml version="1.0" encoding="utf-8"?>';
+?>
+<feed xmlns="http://www.w3.org/2005/Atom">
+<title>fsfeed - <?php echo $path ?></title> 
+  <updated><?php echo strftime('%Y-%m-%dT%TZ') ?></updated>
+  <author> 
+    <name>fsfeed 0.1</name>
+  </author> 
+  <id>urn:uuid:<?php echo sha1($path) ?></id>
+<?php
+    
+  foreach(glob("{$path}/*", GLOB_NOSORT) as $p):
+    
+    $uuid = sha1($p.filemtime($p));
+    $ts = strftime('%Y-%m-%dT%TZ', filemtime($p));
+    $created = strftime('%c', filectime($p));
+    $updated = strftime('%c', filemtime($p));
+    $size = round(filesize($p)/pow(1024, 2), 2);
+    $summary = sprintf("Created: %s\nUpdated: %s\nSize: %s MB", $created, $updated, $size);
+    $link = $_SERVER['HTTP_HOST'].dirname($_SERVER['PHP_SELF']).'/get.php?f='.urlencode($p);
+      
+?>
+  <entry>
+    <title><?php echo basename($p) ?></title>
+    <id>urn:uuid:<?php echo $uuid ?></id>
+    <link href="http://<?php echo $link ?>"/>
+    <updated><?php echo $ts ?></updated>
+    <summary><?php echo $summary ?></summary>
+  </entry>
+<?php endforeach ?>
+</feed>
diff --git a/fsfeed.db.default b/fsfeed.db.default
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--- /dev/null
+++ b/fsfeed.db.default
diff --git a/get.php b/get.php
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+++ b/get.php
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+<?php
+////
+// fsfeed/get.php
+// download a file
+$path = $_GET['f'];
+if (file_exists($path)) {
+  header('Content-Description: File Transfer');
+  header('Content-Type: application/octet-stream');
+  header('Content-Disposition: attachment; filename='.basename($path));
+  header('Content-Transfer-Encoding: binary');
+  header('Expires: 0');
+  header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
+  header('Pragma: public');
+  header('Content-Length: ' . filesize($path));
+  ob_clean();
+  flush();
+  readfile($path);
+  exit;
+}
+?>
\ No newline at end of file
diff --git a/index.php b/index.php
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+++ b/index.php
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+<?php
+////
+// fsfeed/index.php
+// manage directory feeds
+$msg = 'fsfeed 0.1';
+$db = new PDO('sqlite:fsfeed.db');
+if (isset($_POST['delete'])) {
+  $stmt = $db->prepare('DELETE FROM path WHERE id = ?');
+  $stmt->execute(array($_POST['delete']));
+  $msg = 'Path deleted';
+}
+if (isset($_POST['add'])) {
+  if (!realpath($_POST['path']) || empty($_POST['path'])) {
+    $msg = "Invalid path: {$_POST['path']}";
+  } else {
+    $stmt = $db->prepare('INSERT INTO path (path) VALUES (?)');
+    $stmt->execute(array($_POST['path']));
+    $msg = 'Path added';
+  }
+}
+$rows = $db->query('SELECT * FROM path')->fetchAll();
+?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+	"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
+	<title>fsfeed</title>
+	<style type="text/css" media="screen">
+    body, input, button {
+      font: 1.2em "Lucida Grande", "Trebuchet MS", Verdana, sans-serif;
+    }
+    table {
+      width:80%;
+      margin: 200px auto;
+    }
+    input[type="text"] {
+      width: 80%;
+    }
+    td, th {
+      padding:5px;
+      text-align:left;
+    }
+    th {
+      background:#444;
+      color:#fff;
+    }
+	</style>
+</head>
+
+<body>
+  <form method="post" action="#">
+  <table>
+    <thead>
+      <tr>
+        <th colspan="2"><?php echo $msg ?></th>
+      </tr>
+    </thead>
+<?php foreach ($rows as $r): ?>
+    <tr>
+      <td><a href="feed.php?f=<?php echo $r['id'] ?>" target="_blank"><?php echo $r['path'] ?></a></td>
+      <td style="width:40px"><button name="delete" value="<?php echo $r['id'] ?>"/>Delete</td>
+    </tr>
+<?php endforeach ?>
+    <tr>
+      <td><input type="text" name="path"/></td>
+      <td><input type="submit" name="add" value="Add Path"/></td>
+    </tr>
+  </table>
+  </form>
+</body>
+</html>