Initial commit

Signed-off-by: Florian Pritz <bluewind@xssn.at>

1 files changed, 231 insertions, 0 deletions

diff --git a/system/application/controllers/file.php b/system/application/controllers/file.php
new file mode 100644
index 000000000..d22cb9dfe
--- /dev/null
+++ b/system/application/controllers/file.php
@@ -0,0 +1,231 @@
+<?php
+/*
+ * Copyright 2009-2010 Florian "Bluewind" Pritz <bluewind@server-speed.net>
+ *
+ * Licensed under GPLv3
+ * (see COPYING for full license text)
+ *
+ */
+
+class File extends Controller {
+  // TODO: Add comments
+
+  function __construct()
+  {
+    parent::Controller();
+    $this->load->helper('form');
+    $this->load->model('file_mod');
+  }
+
+  function index()
+  {
+    $this->upload_form();
+  }
+
+  function upload_form()
+  {
+    $data = array();
+    $data['title'] = 'Upload';
+
+    $this->load->view('file/header', $data);
+    $this->load->view('file/upload_form', $data);
+    $this->load->view('file/footer', $data);
+  }
+
+  function delete()
+  {
+    $id = $this->uri->segment(3);
+    $password = $this->input->post('password');
+    if ($password !== false && $this->file_mod->id_exists($id)) {
+      $this->file_mod->delete_id($id, $password);
+      echo $id." deleted\n";
+    } else {
+      echo 'Couldn\'t delete '.$id."\n";
+    }
+    die();
+  }
+
+  function do_upload()
+  {
+    $data = array();
+    if(isset($_FILES['userfile'])) {
+      if ($_FILES['userfile']['error'] === 0) {
+        $filesize = filesize($_FILES['userfile']['tmp_name']);
+        if ($filesize >= $this->config->item('upload_max_size')) {
+          $this->load->view('file/header', $data);
+          $this->load->view('file/too_big');
+        } else {
+          $password = $this->input->post('password');
+          $extension = $this->input->post('extension');
+          if ($password !== false) {
+            $password = $this->file_mod->hash_password($password);
+          } else {
+            $password = 'NULL';
+          }
+
+          $id = $this->file_mod->new_id();
+          $file_hash = md5_file($_FILES['userfile']['tmp_name']);
+          $file_name = $_FILES['userfile']['name'];
+          $folder = $this->file_mod->folder($file_hash);
+          file_exists($folder) || mkdir ($folder);
+          $file = $folder.'/'.$file_hash;
+          
+          $sql = '
+            INSERT INTO `files` (`hash`, `id`, `filename`, `password`, `date`)
+            VALUES (?, ?, ?, ?, ?)';
+          $query = $this->db->query($sql, array($file_hash, $id, $file_name, $password, time()));
+          
+          move_uploaded_file($_FILES['userfile']['tmp_name'], $file);
+          chmod($file, 0600);
+
+          redirect($this->config->item('paste_show_url').$id.'/'.$extension);
+        }
+      } else {
+        $this->index();
+      }
+    } else {
+      $this->load->view('file/header', $data);
+      $this->load->view('file/upload_error', $data);
+      $this->load->view('file/footer', $data);
+    }
+  }
+
+  function show_url()
+  {
+    $data = array();
+    $id = $this->uri->segment(3);
+    $mode = $this->uri->segment(4);
+
+    if ($mode) {
+      $data['url'] = site_url($this->config->item('paste_download_url').$id.'/'.$mode);
+    } else {
+      $data['url'] = site_url($this->config->item('paste_download_url').$id).'/';
+    }
+
+    if (strstr($_SERVER['HTTP_USER_AGENT'], 'libcurl')) {
+      echo $data['url'];
+    } else {
+      $this->load->view('file/header', $data);
+      $this->load->view('file/show_url', $data);
+      $this->load->view('file/footer', $data);
+    }
+  }
+
+  function download()
+  {
+    $data = array();
+    $id = $this->uri->segment(3);
+    $mode = $this->uri->segment(4);
+
+    $filedata = $this->file_mod->get_filedata($id);
+
+    $folder = $this->file_mod->folder($filedata['hash']);
+    $file = $folder.'/'.$filedata['hash'];
+    
+    if ($this->file_mod->id_exists($id) && file_exists($file)) {
+      // MODIFIED SINCE SUPPORT -- START
+      // helps to keep traffic low when reloading an image
+      // TODO: check for bugs, find source of code again
+      $filedate = filectime($file);
+      $etag = strtolower(md5_file($file));
+      $modified = true;
+
+      if(isset($_SERVER['HTTP_IF_NONE_MATCH'])) {
+        $oldtag = trim(strtolower($_SERVER['HTTP_IF_NONE_MATCH']), '"');
+        if($oldtag == $etag) {
+          $modified = false;
+        } else {
+          $modified = true;
+        }
+      }
+       
+      if(isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) {
+        $olddate = date_parse(trim(strtolower($_SERVER['HTTP_IF_MODIFIED_SINCE'])));
+        $olddate = gmmktime($olddate['hour'],
+                            $olddate['minute'],
+                            $olddate['second'],
+                            $olddate['month'],
+                            $olddate['day'],
+                            $olddate['year']);
+        if($olddate >= $filedate) {
+          $modified = false;
+        } else {
+          $modified = true;
+        }
+      }
+      // MODIFIED SINCE SUPPORT -- END
+
+      $type = exec('/usr/bin/perlbin/vendor/mimetype -b '.escapeshellarg($file));
+
+      if (!$mode && substr_count(ltrim($this->uri->uri_string(), "/"), '/') >= 3) {
+        $mode = $this->file_mod->mime2extension($type);
+      }
+
+      if (!$modified) {
+        header("HTTP/1.1 304 Not Modified");
+        header('Etag: "'.$etag.'"');
+      } else {
+        if ($mode 
+           && $this->file_mod->mime2extension($type)
+           && filesize($file) <= $this->config->item('upload_max_text_size')
+           ) {
+          header("Content-Type: text/html\n");
+          // TODO: move to own file
+          echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">'
+          .'<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"'
+          .'  <head><title>'.$filedata['filename'].'</title>'
+          .'    <link rel="stylesheet" type="text/css" href="'.base_url().'data/paste.css" />'
+          .'  </head>'
+          .'<body>'
+          .'  <div class="top_bar">'
+          .'    <a class="raw_link no" href="'.site_url($this->config->item('paste_download_url').$id).'">Raw</a>'
+          .'  </div'
+          .'  <table class="content">'
+          .'  <tr><td class="numbers"><pre>';
+          // TODO: implement in PHP
+          echo shell_exec('/usr/bin/seq 1 $(/usr/bin/wc -l '.escapeshellarg($file).' | /bin/cut -d\  -f1) | sed -r \'s/^(.*)$/<a href="#n\1" class="no" name="n\1" id="n\1">\1<\/a>/g\'');
+          echo '  </pre></td><td class="code"><pre>'."\n";
+          echo shell_exec(FCPATH.'scripts/syntax-highlighting.sh '.$filedata['filename'].'.'.$mode.' < '.escapeshellarg($file));
+          echo '</pre></td></tr></table></body></html>';
+        } else {
+          header("Content-Type: ".$type."\n");
+          header("Content-disposition: inline; filename=\"".$filedata['filename']."\"\n");
+          header("Content-Length: ".filesize($file)."\n");
+          header("Last-Modified: ".date('D, d M Y H:i:s', $filedate)." GMT");
+          header('Etag: "'.$etag.'"');
+          $fp = fopen($file,"r");
+          while (!feof($fp)) {
+            $buff = fread($fp,4096);
+            echo $buff;
+          }
+          fclose($fp);
+        }
+      }
+      exit();
+    } else {
+      $this->load->view('file/header', $data);
+      $this->load->view('file/non_existant');
+      $this->load->view('file/footer', $data);
+    }
+  }
+
+  function cron()
+  {
+    $oldest_time = (time()-$this->config->item('upload_max_age'));
+    $query = $this->db->query('SELECT hash, id FROM files WHERE date < ?',
+      array($oldest_time));
+
+    foreach($query->result_array() as $row) {
+      $file = $this->config->item('upload_path').'/'.substr($row['hash'], 0, 3).'/'.$row['hash'];
+      if(filemtime($file) < $oldest_time) {
+        unlink($file);
+        $this->db->query('DELETE FROM files WHERE hash = ?', array($row['hash']));
+      } else {
+        $this->db->query('DELETE FROM files WHERE id = ?', array($row['id']));
+      }
+    }
+  }
+}
+
+/* End of file file.php */
+/* Location: ./system/application/controllers/file.php */