Guides: initial implementation

* a guide is a wrapper around an article providing management tools.
 * administration is limited to the review process. Needs to be expanded.
 * articles on DB pages are seperate. Editor will be added in the future.

includes/ajaxHandler/edit.class.php

@@ -0,0 +1,80 @@
+<?php
+
+if (!defined('AOWOW_REVISION'))
+    die('illegal access');
+
+class AjaxEdit extends AjaxHandler
+{
+    protected $_get = array(
+        'qqfile' => ['filter' => FILTER_UNSAFE_RAW, 'flags' => FILTER_FLAG_STRIP_AOWOW],
+        'guide'  => ['filter' => FILTER_SANITIZE_NUMBER_INT]
+    );
+
+    public function __construct(array $params)
+    {
+        parent::__construct($params);
+
+        if (!$params)
+            return;
+
+        if ($params[0] == 'image')
+            $this->handler = 'handleUpload';
+        else if ($params[0] == 'article')                   // has it's own editor page
+            $this->handler = null;
+    }
+
+    /*
+        success: bool
+            id:   image enumerator
+            type: 3 ? png : jpg
+            name: old filename
+        error: errString
+    */
+    protected function handleUpload() : string
+    {
+        if (!User::$id || $this->_get['guide'] != 1)
+            return Util::toJSON(['success' => false, 'error' => '']);
+
+        require_once('includes/libs/qqFileUploader.class.php');
+
+        $targetPath = 'static/uploads/guide/images/';
+        $tmpPath    = 'static/uploads/temp/';
+        $tmpFile    = User::$displayName.'-'.Type::GUIDE.'-0-'.Util::createHash(16);
+
+        $uploader = new qqFileUploader(['jpg', 'jpeg', 'png'], 10 * 1024 * 1024);
+        $result   = $uploader->handleUpload($tmpPath, $tmpFile, true);
+
+        if (isset($result['success']))
+        {
+            $finfo = new finfo(FILEINFO_MIME);
+            $mime  = $finfo->file($tmpPath.$result['newFilename']);
+            if (preg_match('/^image\/(png|jpe?g)/i', $mime, $m))
+            {
+                $i = 1;                                     // image index
+                if ($files = scandir($targetPath, SCANDIR_SORT_DESCENDING))
+                    if (rsort($files, SORT_NATURAL) && $files[0] != '.' && $files[0] != '..')
+                        $i = explode('.', $files[0])[0] + 1;
+
+                $targetFile = $i . ($m[1] == 'png' ? '.png' : '.jpg');
+
+                // move to final location
+                if (!rename($tmpPath.$result['newFilename'], $targetPath.$targetFile))
+                    return Util::toJSON(['error' => Lang::main('intError')]);
+
+                // send success
+                return Util::toJSON(array(
+                    'success' => true,
+                    'id'      => $i,
+                    'type'    => $m[1] == 'png' ? 3 : 2,
+                    'name'    => $this->_get['qqfile']
+                ));
+            }
+
+            return Util::toJSON(['error' => Lang::screenshot('error', 'unkFormat')]);
+        }
+
+        return Util::toJSON($result);
+    }
+}
+
+?>