Update installer to fix issue with profiles that have no /install/fil…

…es/ directory. If the profile had no files dir, then when admin tried to login they would get a "this request appears to be forged" error.

htaccess.txt

@@ -97,7 +97,7 @@ DirectoryIndex index.php index.html index.htm
   # Block access to any htaccess files
   RewriteCond %{REQUEST_URI} (^|/)\.htaccess$ [NC,OR]
   # Block access to protected assets directories
-  RewriteCond %{REQUEST_URI} (^|/)(site|site-[^/]+)/assets/(cache|logs|backups|sessions|config|install)($|/.*$) [OR]
+  RewriteCond %{REQUEST_URI} (^|/)(site|site-[^/]+)/assets/(cache|logs|backups|sessions|config|install|tmp)($|/.*$) [OR]
   # Block acceess to the /site/install/ directory
   RewriteCond %{REQUEST_URI} (^|/)(site|site-[^/]+)/install($|/.*$) [OR]
   # Block dirs in /site/assets/ dirs that start with a hyphen

install.php

@@ -12,7 +12,7 @@
  * reason, then you'll want to delete that file. This was implemented just in case someone doesn't delete the installer.
  * 
  * ProcessWire 2.x 
- * Copyright (C) 2012 by Ryan Cramer 
+ * Copyright (C) 2013 by Ryan Cramer 
  * Licensed under GNU/GPL v2, see LICENSE.TXT
  * 
  * http://processwire.com
@@ -378,12 +378,11 @@ protected function profileImport($mysqli) {
 			$this->profileImportSQL($mysqli, $profile . "install.sql"); 
 			$this->ok("Imported: {$profile}install.sql"); 
 
-			if(!is_dir("./site/assets/files/") && is_dir($profile . "files")) {
-				$this->mkdir("./site/assets/cache/"); 
-				$this->mkdir("./site/assets/logs/"); 
-				$this->mkdir("./site/assets/sessions/"); 
-				$this->profileImportFiles($profile);
-			}
+			if(is_dir($profile . "files")) $this->profileImportFiles($profile);
+				else $this->mkdir("./site/assets/files/"); 
+			$this->mkdir("./site/assets/cache/"); 
+			$this->mkdir("./site/assets/logs/"); 
+			$this->mkdir("./site/assets/sessions/"); 
 
 		} else {
 			$this->ok("A profile is already imported, skipping..."); 
@@ -553,7 +552,6 @@ protected function adminAccountSave($wire) {
 
 	}
 
-
 	/******************************************************************************************************************
 	 * OUTPUT FUNCTIONS
 	 *

wire/core/PageTraversal.php

@@ -45,6 +45,7 @@ public static function children(page $page, $selector = '', $options = array())
 	 *
 	 */
 	public static function child(Page $page, $selector = '', $options = array()) {
+		if(!$page->numChildren) return new NullPage();
 		$selector .= ($selector ? ', ' : '') . "limit=1";
 		if(strpos($selector, 'start=') === false) $selector .= ", start=0"; // prevent pagination
 		$children = self::children($page, $selector, $options);