Gdn_UploadImage::canUploadImages PHP Method

    public static function canUploadImages()
    {
        // Is the Uploads directory available and correctly permissioned?
        if (!Gdn_Upload::canUpload()) {
            return false;
        }
        // Do we have GD?
        if (!function_exists('gd_info')) {
            return false;
        }
        $GdInfo = gd_info();
        // Do we have a good version of GD?
        $GdVersion = preg_replace('/[a-z ()]+/i', '', $GdInfo['GD Version']);
        if ($GdVersion < 2) {
            return false;
        }
        return true;
    }

 /**
  * @param SideMenuModule $Module
  * @param string $CurrentUrl
  */
 public function buildEditMenu(&$Module, $CurrentUrl = '')
 {
     if (!$this->User) {
         return;
     }
     $Module->HtmlId = 'UserOptions';
     $Module->AutoLinkGroups = false;
     $Session = Gdn::session();
     $ViewingUserID = $Session->UserID;
     $Module->addItem('Options', '', false, array('class' => 'SideMenu'));
     // Check that we have the necessary tools to allow image uploading
     $AllowImages = c('Garden.Profile.EditPhotos', true) && Gdn_UploadImage::canUploadImages();
     // Is the photo hosted remotely?
     $RemotePhoto = isUrl($this->User->Photo);
     if ($this->User->UserID != $ViewingUserID) {
         // Include user js files for people with edit users permissions
         if (checkPermission('Garden.Users.Edit') || checkPermission('Moderation.Profiles.Edit')) {
             //              $this->addJsFile('jquery.gardenmorepager.js');
             $this->addJsFile('user.js');
         }
         $Module->addLink('Options', sprite('SpProfile') . ' ' . t('Edit Profile'), userUrl($this->User, '', 'edit'), array('Garden.Users.Edit', 'Moderation.Profiles.Edit'), array('class' => 'Popup EditAccountLink'));
         $Module->addLink('Options', sprite('SpProfile') . ' ' . t('Edit Account'), '/user/edit/' . $this->User->UserID, 'Garden.Users.Edit', array('class' => 'Popup EditAccountLink'));
         $Module->addLink('Options', sprite('SpDelete') . ' ' . t('Delete Account'), '/user/delete/' . $this->User->UserID, 'Garden.Users.Delete', array('class' => 'Popup DeleteAccountLink'));
         if ($this->User->Photo != '' && $AllowImages) {
             $Module->addLink('Options', sprite('SpDelete') . ' ' . t('Remove Picture'), userUrl($this->User, '', 'removepicture') . '?tk=' . $Session->transientKey(), array('Garden.Users.Edit', 'Moderation.Profiles.Edit'), array('class' => 'RemovePictureLink'));
         }
         $Module->addLink('Options', sprite('SpPreferences') . ' ' . t('Edit Preferences'), userUrl($this->User, '', 'preferences'), array('Garden.Users.Edit', 'Moderation.Profiles.Edit'), array('class' => 'Popup PreferencesLink'));
         // Add profile options for everyone
         $Module->addLink('Options', sprite('SpPicture') . ' ' . t('Change Picture'), userUrl($this->User, '', 'picture'), array('Garden.Users.Edit', 'Moderation.Profiles.Edit'), array('class' => 'PictureLink'));
         if ($this->User->Photo != '' && $AllowImages && !$RemotePhoto) {
             $Module->addLink('Options', sprite('SpThumbnail') . ' ' . t('Edit Thumbnail'), userUrl($this->User, '', 'thumbnail'), array('Garden.Users.Edit', 'Moderation.Profiles.Edit'), array('class' => 'ThumbnailLink'));
         }
     } else {
         if (hasEditProfile($this->User->UserID)) {
             $Module->addLink('Options', sprite('SpEdit') . ' ' . t('Edit Profile'), '/profile/edit', false, array('class' => 'Popup EditAccountLink'));
         }
         // Add profile options for the profile owner
         // Don't allow account editing if it has been turned off.
         // Don't allow password editing if using SSO Connect ONLY.
         // This is for security. We encountered the case where a customer charges
         // for membership using their external application and use SSO to let
         // their customers into Vanilla. If you allow those people to change their
         // password in Vanilla, they will then be able to log into Vanilla using
         // Vanilla's login form regardless of the state of their membership in the
         // external app.
         if (c('Garden.UserAccount.AllowEdit') && c('Garden.Registration.Method') != 'Connect') {
             // No password may have been set if they have only signed in with a connect plugin
             $PasswordLabel = t('Change My Password');
             if ($this->User->HashMethod && $this->User->HashMethod != "Vanilla") {
                 $PasswordLabel = t('Set A Password');
             }
             $Module->addLink('Options', sprite('SpPassword') . ' ' . $PasswordLabel, '/profile/password', false, array('class' => 'Popup PasswordLink'));
         }
         $Module->addLink('Options', sprite('SpPreferences') . ' ' . t('Notification Preferences'), userUrl($this->User, '', 'preferences'), false, array('class' => 'Popup PreferencesLink'));
         if ($AllowImages) {
             $Module->addLink('Options', sprite('SpPicture') . ' ' . t('Change My Picture'), '/profile/picture', array('Garden.Profiles.Edit', 'Garden.ProfilePicture.Edit'), array('class' => 'PictureLink'));
         }
         if ($this->User->Photo != '' && $AllowImages && !$RemotePhoto) {
             $Module->addLink('Options', sprite('SpThumbnail') . ' ' . t('Edit My Thumbnail'), '/profile/thumbnail', array('Garden.Profiles.Edit', 'Garden.ProfilePicture.Edit'), array('class' => 'ThumbnailLink'));
         }
         if ($this->User->Photo != '' && $AllowImages) {
             $Module->addLink('Options', sprite('SpDelete') . ' ' . t('Remove Picture'), userUrl($this->User, '', 'removepicture') . '?tk=' . $Session->transientKey(), array('Garden.Profiles.Edit', 'Garden.ProfilePicture.Edit'), array('class' => 'RemovePictureLink'));
         }
     }
     if ($this->User->UserID == $ViewingUserID || $Session->checkPermission('Garden.Users.Edit')) {
         $this->setData('Connections', array());
         $this->EventArguments['User'] = $this->User;
         $this->fireEvent('GetConnections');
         if (count($this->data('Connections')) > 0) {
             $Module->addLink('Options', sprite('SpConnection') . ' ' . t('Social'), '/profile/connections', 'Garden.SignIn.Allow', array('class' => 'link-social'));
         }
     }
 }