fixed #143

没有将上传路径的定义放到设置中，这是一个不常用的定义，放在config.inc.php里添加一行`define('__TYPECHO_UPLOAD_DIR__', 'xxxx');`即可
增加jpeg支持

var/Widget/Options.php

@@ -319,7 +319,7 @@ class Widget_Options extends Typecho_Widget
         if (NULL != $this->attachmentTypes) {
             $attachmentTypes = str_replace(
                 array('@image@', '@media@', '@doc@'), 
-                array('gif,jpg,png,tiff,bmp', 'mp3,wmv,wma,rmvb,rm,avi,flv',
+                array('gif,jpg,jpeg,png,tiff,bmp', 'mp3,wmv,wma,rmvb,rm,avi,flv',
                     'txt,doc,docx,xls,xlsx,ppt,pptx,zip,rar,pdf'), $this->attachmentTypes);
             
             $attachmentTypesResult = array_unique(array_map('trim', explode(',', $attachmentTypes)));

var/Widget/Options/General.php

@@ -116,7 +116,7 @@ class Widget_Options_General extends Widget_Abstract_Options implements Widget_I
         }
         
         $attachmentTypesOptions = array(
-            '@image@'    =>  _t('图片文件') . ' <code>(gif jpg png tiff bmp)</code>',
+            '@image@'    =>  _t('图片文件') . ' <code>(gif jpg jpeg png tiff bmp)</code>',
             '@media@'    =>  _t('多媒体文件') . ' <code>(mp3 wmv wma rmvb rm avi flv)</code>',
             '@doc@'      =>  _t('常用档案文件') . ' <code>(txt doc docx xls xlsx ppt pptx zip rar pdf)</code>',
             '@other@'    =>  _t('其他格式 %s', ' <input type="text" class="w-50 text-s mono" name="attachmentTypesOther" value="' . htmlspecialchars($attachmentTypesOtherValue) . '" />'),

var/Widget/Upload.php

@@ -19,7 +19,7 @@
 class Widget_Upload extends Widget_Abstract_Contents implements Widget_Interface_Do
 {
     //上传文件目录
-    const UPLOAD_PATH = '/usr/uploads';
+    const UPLOAD_DIR = '/usr/uploads';
 
     /**
      * 创建上传路径
@@ -75,8 +75,8 @@ class Widget_Upload extends Widget_Abstract_Contents implements Widget_Interface
 
         $options = Typecho_Widget::widget('Widget_Options');
         $date = new Typecho_Date($options->gmtTime);
-        $path = Typecho_Common::url(self::UPLOAD_PATH, __TYPECHO_ROOT_DIR__)
-            . '/' . $date->year . '/' . $date->month;
+        $path = Typecho_Common::url(defined('__TYPECHO_UPLOAD_DIR__') ? __TYPECHO_UPLOAD_DIR__ : self::UPLOAD_DIR,
+            __TYPECHO_ROOT_DIR__) . '/' . $date->year . '/' . $date->month;
 
         //创建上传目录
         if (!is_dir($path)) {
@@ -112,7 +112,8 @@ class Widget_Upload extends Widget_Abstract_Contents implements Widget_Interface
         //返回相对存储路径
         return array(
             'name' => $file['name'],
-            'path' => self::UPLOAD_PATH . '/' . $date->year . '/' . $date->month . '/' . $fileName,
+            'path' => (defined('__TYPECHO_UPLOAD_DIR__') ? __TYPECHO_UPLOAD_DIR__ : self::UPLOAD_DIR) 
+                . '/' . $date->year . '/' . $date->month . '/' . $fileName,
             'size' => $file['size'],
             'type' => $ext,
             'mime' => Typecho_Common::mimeContentType($path)