From: Jason Woofenden <jason@vorticies.(none)>
Date: Fri, 19 Jan 2007 22:28:43 +0000 (-0500)
Subject: wrote upload handler (untested
X-Git-Url: https://jasonwoof.com/gitweb/?p=wfpl.git;a=commitdiff_plain;h=e3c093250e28f834151eb6ddba5ad965a8e6651b

wrote upload handler (untested
---

diff --git a/upload.php b/upload.php
new file mode 100644
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);
+	}
+}
+
+?>