From e8b4a64f8aa02f39bff555572c3865c587665317 Mon Sep 17 00:00:00 2001
From: Thomas Steur <thomas.steur@googlemail.com>
Date: Thu, 15 May 2014 00:39:34 +0200
Subject: added possibility to upload a favicon

---
 plugins/CoreAdminHome/CustomLogo.php | 49 +++++++++++++++++++++++-------------
 1 file changed, 31 insertions(+), 18 deletions(-)

(limited to 'plugins/CoreAdminHome/CustomLogo.php')

diff --git a/plugins/CoreAdminHome/CustomLogo.php b/plugins/CoreAdminHome/CustomLogo.php
index ca845fe4fb..f4c95c49b3 100644
--- a/plugins/CoreAdminHome/CustomLogo.php
+++ b/plugins/CoreAdminHome/CustomLogo.php
@@ -17,6 +17,7 @@ class CustomLogo
 {
     const LOGO_HEIGHT = 300;
     const LOGO_SMALL_HEIGHT = 100;
+    const FAVICON_HEIGHT = 32;
 
     public function getLogoUrl($pathOnly = false)
     {
@@ -129,6 +130,11 @@ class CustomLogo
         return self::rewritePath('misc/user/logo.png');
     }
 
+    public static function getPathUserFavicon()
+    {
+        return self::rewritePath('misc/user/favicon.png');
+    }
+
     public static function getPathUserSvgLogo()
     {
         return self::rewritePath('misc/user/logo.svg');
@@ -146,20 +152,36 @@ class CustomLogo
 
     public function copyUploadedLogoToFilesystem()
     {
+        $uploadFieldName = 'customLogo';
+
+        $success = $this->uploadImage($uploadFieldName, self::LOGO_SMALL_HEIGHT, $this->getPathUserLogoSmall());
+        $success = $success && $this->uploadImage($uploadFieldName, self::LOGO_HEIGHT, $this->getPathUserLogo());
+
+        return $success;
+    }
+
+    public function copyUploadedFaviconToFilesystem()
+    {
+        $uploadFieldName = 'customFavicon';
+
+        return $this->uploadImage($uploadFieldName, self::FAVICON_HEIGHT, $this->getPathUserFavicon());
+    }
 
-        if (empty($_FILES['customLogo'])
-            || !empty($_FILES['customLogo']['error'])
+    private function uploadImage($uploadFieldName, $targetHeight, $userPath)
+    {
+        if (empty($_FILES[$uploadFieldName])
+            || !empty($_FILES[$uploadFieldName]['error'])
         ) {
             return false;
         }
 
-        $file = $_FILES['customLogo']['tmp_name'];
+        $file = $_FILES[$uploadFieldName]['tmp_name'];
         if (!file_exists($file)) {
             return false;
         }
 
         list($width, $height) = getimagesize($file);
-        switch ($_FILES['customLogo']['type']) {
+        switch ($_FILES[$uploadFieldName]['type']) {
             case 'image/jpeg':
                 $image = imagecreatefromjpeg($file);
                 break;
@@ -173,30 +195,21 @@ class CustomLogo
                 return false;
         }
 
-        $widthExpected = round($width * self::LOGO_HEIGHT / $height);
-        $smallWidthExpected = round($width * self::LOGO_SMALL_HEIGHT / $height);
+        $smallWidthExpected = round($width * $targetHeight / $height);
 
-        $logo = imagecreatetruecolor($widthExpected, self::LOGO_HEIGHT);
-        $logoSmall = imagecreatetruecolor($smallWidthExpected, self::LOGO_SMALL_HEIGHT);
+        $logoSmall = imagecreatetruecolor($smallWidthExpected, $targetHeight);
 
         // Handle transparency
-        $background = imagecolorallocate($logo, 0, 0, 0);
         $backgroundSmall = imagecolorallocate($logoSmall, 0, 0, 0);
-        imagecolortransparent($logo, $background);
         imagecolortransparent($logoSmall, $backgroundSmall);
 
-        if ($_FILES['customLogo']['type'] == 'image/png') {
-            imagealphablending($logo, false);
+        if ($_FILES[$uploadFieldName]['type'] == 'image/png') {
             imagealphablending($logoSmall, false);
-            imagesavealpha($logo, true);
             imagesavealpha($logoSmall, true);
         }
 
-        imagecopyresized($logo, $image, 0, 0, 0, 0, $widthExpected, self::LOGO_HEIGHT, $width, $height);
-        imagecopyresized($logoSmall, $image, 0, 0, 0, 0, $smallWidthExpected, self::LOGO_SMALL_HEIGHT, $width, $height);
-
-        imagepng($logo, PIWIK_DOCUMENT_ROOT . '/' . $this->getPathUserLogo(), 3);
-        imagepng($logoSmall, PIWIK_DOCUMENT_ROOT . '/' . $this->getPathUserLogoSmall(), 3);
+        imagecopyresized($logoSmall, $image, 0, 0, 0, 0, $smallWidthExpected, $targetHeight, $width, $height);
+        imagepng($logoSmall, PIWIK_DOCUMENT_ROOT . '/' . $userPath, 3);
         return true;
     }
 
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