wrote upload handler (untested

diff --git a/upload.php b/upload.php
new file mode 100644 (file)
index 0000000..47019a6
--- /dev/null
+++ b/upload.php
@@ -0,0 +1,154 @@
+<?php
+
+#  Copyright (C) 2007 Jason Woofenden
+#
+#  This file is part of wfpl.
+#
+#  wfpl is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2, or (at your option)
+#  any later version.
+#
+#  wfpl is distributed in the hope that it will be useful, but
+#  WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with wfpl; see the file COPYING.  If not, write to the
+#  Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+#  MA 02111-1307, USA.
+
+$GLOBALS['mime_to_ext'] = array(
+       'text/plain' => 'txt',
+       'text/html'  => 'html',
+       'image/jpeg' => 'jpg',
+       'image/jpg'  => 'jpg',
+       'image/gif'  => 'gif',
+       'image/png'  => 'png',
+       'application/pdf' => 'pdf'
+);
+
+$GLOBALS['ext_to_ext'] = array(
+       'text' => 'txt',
+       'jpe'  => 'jpg',
+       'jpeg' => 'jpg',
+       'htm'  => 'html'
+);
+
+
+# pass in the client's path that came from an html <input type="file"/> tag
+#
+# mime time used to generate extension ONLY IF it doesn't have one already.
+function generate_filename($path, $mime = 'text/plain') {
+       # lower case
+       $filename = strtolower($path)
+
+       # remove directories (unix, windows and mac paths)
+       $last = strrpos($filename, '/');
+       if($last === false) {
+               $last = strrpos($filename, '\\');
+       }
+       if($last === false) {
+               $last = strrpos($filename, ':');
+       }
+       if($last) {
+               $filename = substr($filename, $last + 1);
+       }
+
+       # remove dots from the begning (no invisible files)
+       $filename = ereg_replace('^\.*', '', $filename);
+
+       # fix extension
+       $last_dot = strrpos($filename, '.');
+       if($last_dot === false) {
+               #no extension
+               if(isset($GLOBALS['mime_to_ext'][$mime])) {
+                       $filename .= '.' . $GLOBALS['mime_to_ext'][$mime];
+               }
+       } else {
+               $basename = substr($filename, 0, $last_dot);
+               $ext = substr($filename, $last_dot + 1);
+               if(isset($GLOBALS['ext_to_ext'][$ext])) {
+                       $ext .= $GLOBALS['ext_to_ext'][$ext];
+               }
+               $filename = $basename . '.' . $ext;
+       }
+}
+
+
+
+# Move to save folder, and return new filename.
+#
+# Pass in the index into the $_FILES array (the name of the html input tag) and
+# the path to the folder you'd like it saved to. If path ends with a slash this
+# function will generate a filename based on the client's name, otherwise it'll
+# name the file that.
+#
+# <input type="image" name="photo">
+# example: save_uploaded_image('photo', '/www/example.com/images/');
+# example: save_uploaded_image('photo', '/www/example.com/images/example.jpg');
+
+function save_uploaded_file($key, $path) {
+       if(substr($path, -1) == '/') {
+               $filename = $path . generate_filename($_FILES[$key]['name'], $_FILES[$key]['type']);
+       } else {
+               $filename = $path;
+       }
+
+       if(!move_uploaded_file($_FILES['userfile']['tmp_name'], $filename)) {
+               die('file upload failed');
+       }
+}
+
+
+# returns new filename with .png extension
+function gif_to_png($filename, $new_filename = 'just change extension') {
+       if($new_filename == 'just change extension') {
+               $last_dot = strrpos($filename, '.');
+               if($last_dot !== false) {
+                       $new_filename = substr($filename, 0, $last_dot);
+               }
+               $new_filename = $filename . '.png';
+
+               $newfilename = $filename;
+               $filename = substr($filename, 0 -4) . '.png';
+       }
+
+       $convert = '/usr/local/bin/convert';
+       if(!file_exists($convert)) {
+               $convert = '/usr/bin/convert';
+       }
+       if(!file_exists($convert)) {
+               $convert = `which convert`;
+       }
+       if(!file_exists($convert)) {
+               die("can't find imagemagick's 'convert' program");
+       }
+               
+       $command = "$convert " . escapeshellarg($filename) . ' ' . escapeshellarg($new_filename);
+
+       exec($command, null, $ret);
+       if($ret != 0) {
+               die("image conversion failed. convert did exit($ret)");
+       }
+       unlink($filename);
+       return $new_filename;
+}
+
+# like save_uploaded_file except it converts gifs to pngs.
+#
+# FIXME: if destination has an extension, it should convert to that type.
+function save_uploaded_image($key, $path) {
+       if(substr($path, -1) != '/') {
+               $filename = save_uploaded_file($key, $path);
+               if(substr($filename, -4) == '.gif') {
+                       $filename = gif_to_png($filename);
+               }
+               return $filename;
+       } else {
+               return save_file_upload($key, $path);
+       }
+}
+
+?>