<?php

/*
+---------------------------------------------------------------------------+
| Revive Adserver                                                           |
| http://www.revive-adserver.com                                            |
|                                                                           |
| Copyright: See the COPYRIGHT.txt file.                                    |
| License: GPLv2 or later, see the LICENSE.txt file.                        |
+---------------------------------------------------------------------------+
*/

// Require the initialisation file
require_once '../../init.php';

// Required files
require_once MAX_PATH . '/lib/OA/Dal.php';
require_once MAX_PATH . '/lib/OA/Creative/File.php';
require_once MAX_PATH . '/www/admin/config.php';
require_once MAX_PATH . '/lib/max/other/common.php';
require_once MAX_PATH . '/lib/max/other/html.php';
require_once MAX_PATH . '/lib/OA/Admin/UI/component/Form.php';
require_once MAX_PATH . '/lib/OA/Maintenance/Priority.php';

require_once LIB_PATH . '/Plugin/Component.php';

$htmltemplate = MAX_commonGetValueUnslashed('htmltemplate');

// Register input variables
phpAds_registerGlobalUnslashed(
     'alink'
    ,'alink_chosen'
    ,'alt'
    ,'alt_imageurl'
    ,'asource'
    ,'atar'
    ,'adserver'
    ,'bannertext'
    ,'campaignid'
    ,'clientid'
    ,'comments'
    ,'description'
    ,'ext_bannertype'
    ,'height'
    ,'imageurl'
    ,'keyword'
    ,'message'
    ,'replaceimage'
    ,'replacealtimage'
    ,'status'
    ,'statustext'
    ,'type'
    ,'submit'
    ,'target'
    ,'transparent'
    ,'upload'
    ,'url'
    ,'weight'
    ,'width'
);

/*-------------------------------------------------------*/
/* Client interface security                             */
/*-------------------------------------------------------*/
OA_Permission::enforceAccount(OA_ACCOUNT_MANAGER, OA_ACCOUNT_ADVERTISER);
OA_Permission::enforceAccessToObject('clients',   $clientid);
OA_Permission::enforceAccessToObject('campaigns', $campaignid);

if (OA_Permission::isAccount(OA_ACCOUNT_ADVERTISER)) {
    OA_Permission::enforceAllowed(OA_PERM_BANNER_EDIT);
    OA_Permission::enforceAccessToObject('banners', $bannerid);
} else {
    OA_Permission::enforceAccessToObject('banners', $bannerid, true);
}


/*-------------------------------------------------------*/
/* Store preferences									 */
/*-------------------------------------------------------*/
$session['prefs']['inventory_entities'][OA_Permission::getEntityId()]['clientid'] = $clientid;
$session['prefs']['inventory_entities'][OA_Permission::getEntityId()]['campaignid'][$clientid] = $campaignid;
phpAds_SessionDataStore();

/*-------------------------------------------------------*/
/* HTML framework                                        */
/*-------------------------------------------------------*/

// Decide whether this is add or edit, get banner data or initialise it
if ($bannerid != '') {
    // Fetch the data from the database
    $doBanners = OA_Dal::factoryDO('banners');
    if ($doBanners->get($bannerid)) {
        $aBanner = $doBanners->toArray();
    }

    // Set basic values
    $type               = $aBanner['storagetype'];
    $ext_bannertype     = $aBanner['ext_bannertype'];

    if (empty($ext_bannertype)) {
        if ($type == 'html') {
            $ext_bannertype = 'bannerTypeHtml:oxHtml:genericHtml';
        } elseif ($type == 'txt') {
            $ext_bannertype = 'bannerTypeText:oxText:genericText';
        }
    }
    if (!empty($aBanner['filename'])) {
        $aBanner['replaceimage'] = "f"; //select keep image by default
    }

    $aBanner['clientid']   = $clientid;

}
else {
    // Set default values for new banner
    $aBanner['bannerid']     = '';
    $aBanner['campaignid']   = $campaignid;
    $aBanner['clientid']     = $clientid;
    $aBanner['alt']          = '';
    $aBanner['status']       = '';
    $aBanner['bannertext']   = '';
    $aBanner['url']          = "http://";
    $aBanner['target']       = '';
    $aBanner['imageurl']     = "http://";
    $aBanner['width']        = '';
    $aBanner['height']       = '';
    $aBanner['htmltemplate'] = '';
    $aBanner['description']  = '';
    $aBanner['comments']     = '';
    $aBanner['contenttype']  = '';
    $aBanner['adserver']     = 'none';
    $aBanner['keyword']      = '';
    $aBanner["weight"]       = $pref['default_banner_weight'];

    $aBanner['iframe_friendly'] = true;
}
if ($ext_bannertype)
{
    $oComponent = OX_Component::factoryByComponentIdentifier($ext_bannertype);
    //  we may want to use the ancestor class for some sort of generic functionality
    if (!$oComponent)
    {
        $oComponent = OX_Component::getFallbackHandler($extension);
    }
    $formDisabled = (!$oComponent || !$oComponent->enabled);
}
if ((!$ext_bannertype) && $type && (!in_array($type, array('sql','web','url','html','txt'))))
{
    $oComponent = OX_Component::factoryByComponentIdentifier($type);
    $formDisabled = (!$oComponent || !$oComponent->enabled);
    if ($oComponent)
    {
        $ext_bannertype = $type;
        $type = $oComponent->getStorageType();
    }
    else
    {
        $ext_bannertype = '';
        $type = '';
    }
}


// If adding a new banner or used storing type is disabled
// determine which bannertype to show as default
$show_sql   = $conf['allowedBanners']['sql'];
$show_web   = $conf['allowedBanners']['web'];
$show_url   = $conf['allowedBanners']['url'];
$show_html  = $conf['allowedBanners']['html'];
$show_txt   = $conf['allowedBanners']['text'];

if (isset($type) && $type == "sql")      $show_sql     = true;
if (isset($type) && $type == "web")      $show_web     = true;
if (isset($type) && $type == "url")      $show_url     = true;
if (isset($type) && $type == "html")     $show_html    = true;
if (isset($type) && $type == "txt")      $show_txt     = true;

$bannerTypes = array();
if ($show_web) {
    $bannerTypes['web']['web'] = $GLOBALS['strWebBanner'];
}
if ($show_sql) {
    $bannerTypes['sql']['sql'] = $GLOBALS['strMySQLBanner'];
}
if ($show_url) {
    $bannerTypes['url']['url']= $GLOBALS['strURLBanner'];
}
if ($show_html) {
    $aBannerTypeHtml = OX_Component::getComponents('bannerTypeHtml');
    foreach ($aBannerTypeHtml AS $tmpComponent)
    {
        $componentIdentifier = $tmpComponent->getComponentIdentifier();
        $bannerTypes['html'][$componentIdentifier] = $tmpComponent->getOptionDescription();
    }
}
if ($show_txt) {
    $aBannerTypeText = OX_Component::getComponents('bannerTypeText');
    foreach ($aBannerTypeText AS $tmpComponent)
    {
        $componentIdentifier = $tmpComponent->getComponentIdentifier();
        $bannerTypes['text'][$componentIdentifier] = $tmpComponent->getOptionDescription();
    }
}

if (!$type)
{
    if ($show_txt)     $type = "txt";
    if ($show_html)    $type = "html";
    if ($show_url)     $type = "url";
    if ($show_sql)     $type = "sql";
    if ($show_web)     $type = "web";
}

// Build banner form
$form = buildBannerForm($type, $aBanner, $oComponent, $formDisabled);

$valid = $form->validate();
if ($valid && $oComponent && $oComponent->enabled)
{
    $valid = $oComponent->validateForm($form);
}
if ($valid)
{
    //process submitted values
    processForm($bannerid, $form, $oComponent, $formDisabled);
}
else { //either validation failed or form was not submitted, display the form
    displayPage($bannerid, $campaignid, $clientid, $bannerTypes, $aBanner, $type, $form, $ext_bannertype, $formDisabled);
}



function displayPage($bannerid, $campaignid, $clientid, $bannerTypes, $aBanner, $type, $form, $ext_bannertype, $formDisabled=false)
{
    // Initialise some parameters
    $pageName = basename($_SERVER['SCRIPT_NAME']);
    $aEntities = array('clientid' => $clientid, 'campaignid' => $campaignid, 'bannerid' => $bannerid);

    $entityId = OA_Permission::getEntityId();
    if (OA_Permission::isAccount(OA_ACCOUNT_ADVERTISER)) {
        $entityType = 'advertiser_id';
    } else {
        $entityType = 'agency_id';
    }

    // Display navigation
    $aOtherCampaigns = Admin_DA::getPlacements(array($entityType => $entityId));
    $aOtherBanners = Admin_DA::getAds(array('placement_id' => $campaignid), false);

    // Display banner preview
    MAX_displayNavigationBanner($pageName, $aOtherCampaigns, $aOtherBanners, $aEntities);

    //actual page content - type chooser and form
    /*-------------------------------------------------------*/
    /* Main code                                             */
    /*-------------------------------------------------------*/
    $oTpl = new OA_Admin_Template('banner-edit.html');

    $oTpl->assign('clientId',  $clientid);
    $oTpl->assign('campaignId',  $campaignid);
    $oTpl->assign('bannerId',  $bannerid);
    $oTpl->assign('bannerTypes', $bannerTypes);
    $oTpl->assign('bannerType', ($ext_bannertype ? $ext_bannertype : $type));
    $oTpl->assign('bannerHeight', $aBanner["height"]);
    $oTpl->assign('bannerWidth', $aBanner["width"]);
    $oTpl->assign('disabled', $formDisabled);
    $oTpl->assign('form', $form->serialize());


    $oTpl->display();

    /*********************************************************/
    /* HTML framework                                        */
    /*********************************************************/
    phpAds_PageFooter();
}


function buildBannerForm($type, $aBanner, &$oComponent=null, $formDisabled=false)
{
    //-- Build forms
    $form = new OA_Admin_UI_Component_Form("bannerForm", "POST", $_SERVER['SCRIPT_NAME'], null, array("enctype"=>"multipart/form-data"));
    $form->forceClientValidation(true);
    $form->addElement('hidden', 'clientid', $aBanner['clientid']);
    $form->addElement('hidden', 'campaignid', $aBanner['campaignid']);
    $form->addElement('hidden', 'bannerid', $aBanner['bannerid']);
    $form->addElement('hidden', 'type', $type);
    $form->addElement('hidden', 'status', $aBanner['status']);

    if ($type == 'sql' || $type == 'web') {
        $form->addElement('custom', 'banner-iab-note', null, null);
    }

    $form->addElement('header', 'header_basic', $GLOBALS['strBasicInformation']);
    if (OA_Permission::isAccount(OA_ACCOUNT_ADMIN) || OA_Permission::isAccount(OA_ACCOUNT_MANAGER)) {
        $form->addElement('text', 'description', $GLOBALS['strName']);
    }
    else {
        $form->addElement('static', 'description', $GLOBALS['strName'], $aBanner['description']);
    }

    //local banners
    if ($type == 'sql' || $type == 'web') {
        if ($type == 'sql') {
            $header = $form->createElement('header', 'header_sql', $GLOBALS['strMySQLBanner']." -  banner creative");
        }
        else {
            $header = $form->createElement('header', 'header_sql', $GLOBALS['strWebBanner']." -  banner creative");
        }
        $header->setAttribute('icon', 'icon-banner-stored.gif');
        $form->addElement($header);

        $imageName = _getContentTypeIconImageName($aBanner['contenttype']);
        $size = _getBannerSizeText($type, $aBanner['filename']);

        addUploadGroup($form, $aBanner,
            array(
                'uploadName' => 'upload',
                'radioName' => 'replaceimage',
                'imageName'  => $imageName,
                'fileName'  => $aBanner['filename'],
                'fileSize'  => $size,
                'newLabel'  => $GLOBALS['strNewBannerFile'],
                'updateLabel'  => $GLOBALS['strUploadOrKeep'],
              )
        );

        $form->addElement('header', 'header_b_links', "Banner link");
        $form->addElement('text', 'url', $GLOBALS['strURL']);
        $targetElem = $form->createElement('text', 'target', $GLOBALS['strTarget']);
        $targetElem->setAttribute('maxlength', '16');
        $form->addElement($targetElem);

        $form->addElement('header', 'header_b_display', 'Banner display');
        $form->addElement('text', 'alt', $GLOBALS['strAlt']);
        $form->addElement('text', 'statustext', $GLOBALS['strStatusText']);
        $form->addElement('text', 'bannertext', $GLOBALS['strTextBelow']);

        if (!empty($aBanner['bannerid'])) {
            $sizeG['width'] = $form->createElement('text', 'width', $GLOBALS['strWidth'].":");
            $sizeG['width']->setAttribute('onChange', 'oa_sizeChangeUpdateMessage("warning_change_banner_size");');
            $sizeG['width']->setSize(5);

            $sizeG['height'] = $form->createElement('text', 'height', $GLOBALS['strHeight'].":");
            $sizeG['height']->setAttribute('onChange', 'oa_sizeChangeUpdateMessage("warning_change_banner_size");');
            $sizeG['height']->setSize(5);
            $form->addGroup($sizeG, 'size', $GLOBALS['strSize'], "&nbsp;", false);

            //validation rules
            $translation = new OX_Translation();
            $widthRequiredRule = array($translation->translate($GLOBALS['strXRequiredField'], array($GLOBALS['strWidth'])), 'required');
            $widthPositiveRule = array($translation->translate($GLOBALS['strXGreaterThanZeroField'], array($GLOBALS['strWidth'])), 'min', 1);
            $heightRequiredRule = array($translation->translate($GLOBALS['strXRequiredField'], array($GLOBALS['strHeight'])), 'required');
            $heightPositiveRule = array($translation->translate($GLOBALS['strXGreaterThanZeroField'], array($GLOBALS['strHeight'])), 'min', 1);
            $numericRule = array($GLOBALS['strNumericField'] , 'numeric');

            $form->addGroupRule('size', array(
                'width' => array($widthRequiredRule, $numericRule, $widthPositiveRule),
                'height' => array($heightRequiredRule, $numericRule, $heightPositiveRule)));
        }

        //TODO $form->addRule("size", 'Please enter a number', 'numeric'); //this should make all fields in group size are numeric
    }

    //external banners
    if ($type == "url") {
        $header = $form->createElement('header', 'header_txt', $GLOBALS['strURLBanner']);
        $header->setAttribute('icon', 'icon-banner-url.gif');
        $form->addElement($header);

        $form->addElement('text', 'imageurl', $GLOBALS['strNewBannerURL']);

        $form->addElement('header', 'header_b_links', "Banner link");
        $form->addElement('text', 'url', $GLOBALS['strURL']);
        $targetElem = $form->createElement('text', 'target', $GLOBALS['strTarget']);
        $targetElem->setAttribute('maxlength', '16');
        $form->addElement($targetElem);

        $form->addElement('header', 'header_b_display', 'Banner display');
        $form->addElement('text', 'alt', $GLOBALS['strAlt']);

        $form->addElement('text', 'statustext', $GLOBALS['strStatusText']);
        $form->addElement('text', 'bannertext', $GLOBALS['strTextBelow']);

        $sizeG['width'] = $form->createElement('text', 'width', $GLOBALS['strWidth'].":");
        $sizeG['width']->setAttribute('onChange', 'oa_sizeChangeUpdateMessage("warning_change_banner_size");');
        $sizeG['width']->setSize(5);

        $sizeG['height'] = $form->createElement('text', 'height', $GLOBALS['strHeight'].":");
        $sizeG['height']->setAttribute('onChange', 'oa_sizeChangeUpdateMessage("warning_change_banner_size");');
        $sizeG['height']->setSize(5);
        $form->addGroup($sizeG, 'size', $GLOBALS['strSize'], "&nbsp;", false);

        //validation rules
        $translation = new OX_Translation();
        $widthRequiredRule = array($translation->translate($GLOBALS['strXRequiredField'], array($GLOBALS['strWidth'])), 'required');
        $widthPositiveRule = array($translation->translate($GLOBALS['strXGreaterThanZeroField'], array($GLOBALS['strWidth'])), 'min', 1);
        $heightRequiredRule = array($translation->translate($GLOBALS['strXRequiredField'], array($GLOBALS['strHeight'])), 'required');
        $heightPositiveRule = array($translation->translate($GLOBALS['strXGreaterThanZeroField'], array($GLOBALS['strHeight'])), 'min', 1);
        $numericRule = array($GLOBALS['strNumericField'] , 'numeric');

        $form->addGroupRule('size', array(
            'width' => array($widthRequiredRule, $numericRule, $widthPositiveRule),
            'height' => array($heightRequiredRule, $numericRule, $heightPositiveRule)));
    }

    //html & text banners
    if ($oComponent) {
        $oComponent->buildForm($form, $aBanner);
    }

    $translation = new OX_Translation();

    //common for all banners
    if (OA_Permission::isAccount(OA_ACCOUNT_ADMIN) || OA_Permission::isAccount(OA_ACCOUNT_MANAGER)) {
        $form->addElement('header', 'header_additional', "Additional data");
        $form->addElement('text', 'keyword', $GLOBALS['strKeyword']);
        $weightElem = $form->createElement('text', 'weight', $GLOBALS['strWeight']);
        $weightElem->setSize(6);
        $form->addElement($weightElem);
        $form->addElement('textarea', 'comments', $GLOBALS['strComments']);
        $weightPositiveRule = $translation->translate($GLOBALS['strXPositiveWholeNumberField'], array($GLOBALS['strWeight']));
        $form->addRule('weight', $weightPositiveRule, 'regex', '#^\d+$#');
        $form->addRule('weight', $weightPositiveRule, 'nonzero');
    }


    //we want submit to be the last element in its own separate section
    $form->addElement('controls', 'form-controls');
    $form->addElement('submit', 'submit', 'Save changes');

    //validation rules
    if (OA_Permission::isAccount(OA_ACCOUNT_ADMIN) || OA_Permission::isAccount(OA_ACCOUNT_MANAGER)) {
        $urlRequiredMsg = $translation->translate($GLOBALS['strXRequiredField'], array($GLOBALS['strName']));
        $form->addRule('description', $urlRequiredMsg, 'required');
    }

    //set banner values
    $form->setDefaults($aBanner);

    if ($formDisabled)
    {
        $form->freeze();
    }

    return $form;
}


function addUploadGroup($form, $aBanner, $vars)
{
        $uploadG = [];

        $update = !empty($vars['fileName']);

        if ($update) {
            $uploadG['radio1'] = $form->createElement('radio', $vars['radioName'], null, (empty($vars['imageName']) ? '' : "<img src='".OX::assetPath()."/images/".$vars['imageName']."' align='absmiddle'> ").$vars['fileName']." <i dir=".$GLOBALS['phpAds_TextDirection'].">(".$vars['fileSize'].")</i>", 'f');
            $uploadG['radio2'] = $form->createElement('radio', $vars['radioName'], null, null, 't');
            $uploadG['upload'] = $form->createElement('file', $vars['uploadName'], null, array("onchange" => "selectFile(this)", "style" => "width: 250px;"));

            $form->addGroup($uploadG, $vars['uploadName'].'_group', $vars['updateLabel'], array("<br>", "", "<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"), false);
        } else { //add new creative
            $uploadG['hidden'] = $form->createElement("hidden", $vars['radioName']);
            $uploadG['upload'] = $form->createElement('file', $vars['uploadName'], null, array("onchange" => "selectFile(this)", "size" => 26, "style" => "width: 250px"));

            $form->addGroup($uploadG, $vars['uploadName'].'_group', $vars['newLabel'], "<br>", false);

            if (!empty($vars['decorateId'])) {
                $form->addDecorator($vars['uploadName'].'_group', 'process', array('tag' => 'tr',
                    'addAttributes' => array('id' => $vars['decorateId'].'{numCall}',
                    'style' => 'display:none')));
            }

        }
        $form->setDefaults(array(
            $vars['radioName'] => $update ? 'f' : 't',
        ));
}


function processForm($bannerid, $form, &$oComponent, $formDisabled=false)
{
    $aFields = $form->exportValues();

    $doBanners = OA_Dal::factoryDO('banners');
    // Get the existing banner details (if it is not a new banner)
    if (!empty($bannerid)) {
        if ($doBanners->get($bannerid)) {
            $aBanner = $doBanners->toArray();
        }
    }

    $aVariables = array();
    $aVariables['campaignid']      = $aFields['campaignid'];
    $aVariables['target']          = isset($aFields['target']) ? $aFields['target'] : '';
    $aVariables['height']          = isset($aFields['height']) ? $aFields['height'] : 0;
    $aVariables['width']           = isset($aFields['width'])  ? $aFields['width'] : 0;
    $aVariables['weight']          = !empty($aFields['weight']) ? $aFields['weight'] : 0;
    $aVariables['adserver']        = !empty($aFields['adserver']) ? $aFields['adserver'] : '';
    $aVariables['alt']             = !empty($aFields['alt']) ? $aFields['alt'] : '';
    $aVariables['bannertext']      = !empty($aFields['bannertext']) ? $aFields['bannertext'] : '';
    $aVariables['htmltemplate']    = !empty($aFields['htmltemplate']) ? $aFields['htmltemplate'] : '';
    $aVariables['description']     = !empty($aFields['description']) ? $aFields['description'] : '';
    $aVariables['imageurl']        = (!empty($aFields['imageurl']) && $aFields['imageurl'] != 'http://') ? $aFields['imageurl'] : '';
    $aVariables['url']             = (!empty($aFields['url']) && $aFields['url'] != 'http://') ? $aFields['url'] : '';
    $aVariables['status']          = ($aFields['status'] != '') ? $aFields['status'] : '';
    $aVariables['statustext']      = !empty($aFields['statustext']) ? $aFields['statustext'] : '';
    $aVariables['storagetype']     = $aFields['type'];
    $aVariables['ext_bannertype']  = $aFields['ext_bannertype'];
    $aVariables['comments']        = $aFields['comments'];
    $aVariables['iframe_friendly'] = $aFields['iframe_friendly'] ? 1 : 0;

    $aVariables['filename']        = !empty($aBanner['filename']) ? $aBanner['filename'] : '';
    $aVariables['contenttype']     = !empty($aBanner['contenttype']) ? $aBanner['contenttype'] : '';

    if ($aFields['type'] == 'url') {
        $aVariables['contenttype'] = OA_Creative_File::staticGetContentTypeByExtension($aVariables['imageurl']);
        if (empty($aVariables['contenttype'])) {
            // Assume dynamic urls (i.e. http://www.example.com/foo?bar) are "gif"
            $aVariables['contenttype'] = 'gif';
        }
    } elseif ($aFields['type'] == 'txt') {
        // Text banners should always have a "txt" content type
        $aVariables['contenttype'] = 'txt';
    }

    $aVariables['alt_filename']    = !empty($aBanner['alt_filename']) ? $aBanner['alt_filename'] : '';
    $aVariables['alt_contenttype'] = !empty($aBanner['alt_contenttype']) ? $aBanner['alt_contenttype'] : '';
    $aVariables['alt_imageurl']    = !empty($aFields['alt_imageurl']) ? $aFields['alt_imageurl'] : '';

    if (isset($aFields['keyword']) && $aFields['keyword'] != '') {
        $keywordArray = preg_split('/[ ,]+/D', $aFields['keyword']);
        $aVariables['keyword'] = implode(' ', $keywordArray);
    } else {
        $aVariables['keyword'] = '';
    }

    // Deal with any files that are uploaded.
    if (!empty($_FILES['upload']) && $aFields['replaceimage'] == 't') { //TODO refactor upload to be a valid quickform elem
        $oFile = OA_Creative_File::factoryUploadedFile('upload');
        checkForErrorFileUploaded($oFile);
        $oFile->store($aFields['type']);
        $aFile = $oFile->getFileDetails();

        if (!empty($aFile)) {
            $aVariables['filename']      = $aFile['filename'];
            $aVariables['contenttype']   = $aFile['contenttype'];
            $aVariables['width']         = $aFile['width'];
            $aVariables['height']        = $aFile['height'];
            $aVariables['pluginversion'] = $aFile['pluginversion'];
        }

        // Delete the old file for this banner
        if (!empty($aBanner['filename']) && ($aBanner['filename'] != $aFile['filename']) && ($aBanner['storagetype'] == 'web' || $aBanner['storagetype'] == 'sql')) {
            /*
             * Actually, don't delete it. It might be still being used until the
             * cache expires. See:
             *  - https://github.com/revive-adserver/revive-adserver/issues/341
             *  - https://github.com/revive-adserver/revive-adserver/issues/421
             *
             * DataObjects_Banners::deleteBannerFile($aBanner['storagetype'], $aBanner['filename']);
             *
             */
        }
    }
    if (!empty($_FILES['uploadalt']) && $_FILES['uploadalt']['size'] > 0
        &&  $aFields['replacealtimage'] == 't') {

        //TODO: Check image only? - Wasn't enforced before
        $oFile = OA_Creative_File::factoryUploadedFile('uploadalt');
        checkForErrorFileUploaded($oFile);
        $oFile->store($aFields['type']);
        $aFile = $oFile->getFileDetails();

        if (!empty($aFile)) {
            $aVariables['alt_filename']    = $aFile['filename'];
            $aVariables['alt_contenttype'] = $aFile['contenttype'];
        }
    }

    $aVariables['parameters'] = serialize(null);

    //TODO: deleting images is not viable because they could still be in use in the delivery cache
    //    // Delete any old banners...
    //    if (!empty($aBanner['filename']) && $aBanner['filename'] != $aVariables['filename']) {
    //        phpAds_ImageDelete($aBanner['storagetype'], $aBanner['filename']);
    //    }
    //    if (!empty($aBanner['alt_filename']) && $aBanner['alt_filename'] != $aVariables['alt_filename']) {
    //        phpAds_ImageDelete($aBanner['storagetype'], $aBanner['alt_filename']);
    //    }

    // Clients are only allowed to modify certain fields, ensure that other fields are unchanged
    if (OA_Permission::isAccount(OA_ACCOUNT_ADVERTISER)) {
        $aVariables['weight']       = $aBanner['weight'];
        $aVariables['description']  = $aBanner['name'];
        $aVariables['comments']     = $aBanner['comments'];
    }

    $insert = (empty($bannerid)) ? true : false;

    if ($oComponent)
    {
        $result = $oComponent->preprocessForm($insert, $bannerid, $aFields, $aVariables);
        if ($result === false)
        {
            // handle error
            return false;
        }
    }

    // File the data
    $doBanners->setFrom($aVariables);
    if ($insert) {
        $bannerid = $doBanners->insert();
        // Run the Maintenance Priority Engine process
        OA_Maintenance_Priority::scheduleRun();
    } else {
        $doBanners->update();
        // check if size has changed
        if ($aVariables['width'] != $aBanner['width'] || $aVariables['height'] != $aBanner['height']) {
            MAX_adjustAdZones($bannerid);
            MAX_addDefaultPlacementZones($bannerid, $aVariables['campaignid']);
        }
    }
    if ($oComponent)
    {
        $result = $oComponent->processForm($insert, $bannerid, $aFields, $aVariables);
        if ($result === false)
        {
            // handle error
            // remove rec from banners table?
            return false;
        }
    }

    $translation = new OX_Translation ();
    if ($insert) {
        // Queue confirmation message
        $translated_message = $translation->translate ( $GLOBALS['strBannerHasBeenAdded'], array(
            MAX::constructURL(MAX_URL_ADMIN, 'banner-edit.php?clientid=' .  $aFields['clientid'] . '&campaignid=' . $aFields['campaignid'] . '&bannerid=' . $bannerid),
            htmlspecialchars($aFields['description'])
        ));
        OA_Admin_UI::queueMessage($translated_message, 'local', 'confirm', 0);

        $nextPage = "campaign-banners.php?clientid=".$aFields['clientid']."&campaignid=".$aFields['campaignid'];
    }
    else {
        $translated_message = $translation->translate($GLOBALS['strBannerHasBeenUpdated'],
        array (
            MAX::constructURL ( MAX_URL_ADMIN, 'banner-edit.php?clientid='.$aFields['clientid'].'&campaignid='.$aFields['campaignid'].'&bannerid='.$aFields['bannerid'] ),
            htmlspecialchars ( $aFields ['description'])
        ));
        OA_Admin_UI::queueMessage($translated_message, 'local', 'confirm', 0);
        $nextPage = "banner-edit.php?clientid=".$aFields['clientid']."&campaignid=".$aFields['campaignid']."&bannerid=$bannerid";
    }

    // Go to the next page
    Header("Location: $nextPage");
    exit;
}

function checkForErrorFileUploaded($oFile)
{
	if (PEAR::isError($oFile)) {
	    phpAds_PageHeader(1);
	    phpAds_Die($GLOBALS['strErrorOccurred'], htmlspecialchars($oFile->getMessage()). "<br>Please make sure you selected a valid file.");
	}
}

function _getContentTypeIconImageName($contentType)
{
    $imageName = '';
    if (empty($contentType)) {
        return $imageName;
    }

    switch ($contentType) {
        case 'jpeg': $imageName = 'icon-filetype-jpg.gif'; break;
        case 'gif':  $imageName = 'icon-filetype-gif.gif'; break;
        case 'png':  $imageName = 'icon-filetype-png.gif'; break;
        case 'rpm':  $imageName = 'icon-filetype-rpm.gif'; break;
        case 'mov':  $imageName = 'icon-filetype-mov.gif'; break;
        default:     $imageName = 'icon-banner-stored.gif'; break;
    }

    return $imageName;
}

function _getPrettySize($size)
{
    $kb = round($size / 1024);

    if ($kb > 0) {
        return "{$kb} KB";
    }

    return "{$size} B";
}

function _getBannerSizeText($type, $filename)
{
    return _getPrettySize(phpAds_ImageSize($type, $filename));
}