Webconsults Europe - Software Engineering Consulting and Training for Web Development

symfony controller testing

nospam@example.com (John Behrens) — Thu, 08 Mar 2012 15:11:26 +0100

http://avalanche123.com/blog/page/2/

Reset Jenkins Continious Integration Server Password

nospam@example.com (John Behrens) — Fri, 28 Oct 2011 19:57:41 +0200

If you need to reset the password of a Jenkins Continious Integration server. Stop Jenkins: usually /etc/init.d/jenkins stop edit the config.xml usually: /var/lib/jenkins/config.xml Replace true New false Possibly remove the Authorization configuration Restart the Server: usually /etc/init.d/jenkins start Now your Jenkins is absolutely insecure, you can just go to the web interface and edit users password. Do not forget to change back the security configuration, this could be done by a config.xml backup or through the web interface.

Zend_Captcha_Image in action

nospam@example.com (John Behrens) — Tue, 09 Aug 2011 18:29:25 +0200

I just had to build in a Captcha to a simple form on a small side, i thought of using the Zend_Captcha_ReCaptcha but also saw some disadvantages. - Re Captcha is the most common used captcha, if anybody will build a universal spam bot, ReCaptcha might be first target to implement. - Re Captcha depends on a service so if you implement it your site will also depend on this service Implementing a Zend_Captcha_Image is pretty simple, it is not looking as nice as Re Captcha but also works. here is the code.

$captchaImgDir = 'path/to/were/images/will/be/written';
$captcha = 'path/to/trueTypeFontFile.ttf';

$this->addElement(new Zend_Form_Element_Captcha('captcha', array(
'captcha' => array(
'captcha' => 'Image',
'height' => '40',
'font' => $captchaFont,
'imgDir' =>$captchaImgDir,
'wordLen' => 3,
'timeout' => 300,
),
)));

The Zend_Captcha_Image has no standard view renderer, that is why we use the render function

<?=$this->formLabel('captcha', 'Security Code')?><br /> <?=$this->form->getElement('captcha')->render() ;?><br />

If there is time, i might implement a ultimate captcha solution, using Randomly choosen Zend_Captcha implementation this means a spambot would also have to implement different solutions.

Shortnote: Disable all Form Fields Zend_Form

nospam@example.com (John Behrens) — Tue, 09 Aug 2011 16:43:12 +0200

It is possible to disable all form fields using Zend Framework Zend_Form class. maybe if the form is already send and you wanna display the data again inside form for optical reasons.

$form = new My_Zend_Form_Class();
foreach ($form->getElements() as $element) {
$element->setAttrib('disabled', true);
$element->setAttrib('readonly',true);
}

This is not a serios possibility to avoid a form beeing send twice a CSRF token would be much more useful.

PHP 5 Reflection access privat methods

nospam@example.com (John Behrens) — Mon, 29 Mar 2010 15:00:33 +0200

There were highly idiologic discussions about if you should test your privates or not with unit testing or not, in my opinion especially during Development with private methods performing for example calculations it could be useful to Unit Test these. At least during development you make sure that these functions already work, and finally it´s better to change accessibility than just to set accessibility lower to make testing possible. Before PHP 5.3.2 it was not possible to change the accessibility but with the new ReflectionMethod it is. But this feature needs to be used with care, it´s made for unit testing and maybe very special other cases wich are not in my mind yet. Using some magic reflection stuff always makes code very hard to read, maybe you think it´s fance but others might get confused a lot.
Using the ReflectionMethod introduced in PHP 5.3.2
ReflectionMethod::SetAccesible
ReflectionMethod Class

PHP Unit Developer Sebastian Bergmann wrote an article about Testing Your Privates
Sebastians Bergmanns Example:

<?php
class FooTest extends PHPUnit_Framework_TestCase
{
public function testPrivateMethod()
{
$method = new ReflectionMethod(
'Foo', 'doSomethingPrivate'
);
$method->setAccessible(TRUE);
$this->assertEquals(
'blah', $method->invoke(new Foo)
);
}
}
?>

Fake Zend Framework isXmlHttpRequest for Unit Testing

nospam@example.com (John Behrens) — Tue, 23 Mar 2010 13:31:52 +0100

To manipulate the result Zend_Controller_Request_Http::isXmlHttpRequest() maybe for testing XML Controllers in PHP Unit you just need to set the HTTP_X_REQUESTED_WITH value to XMLHttpRequest Zend_Controller_Request_Http::isXmlHttpRequest() does nothing more than checking for this.

$_SERVER['HTTP_X_REQUESTED_WITH']="XMLHttpRequest";

Zend_Controller_Request_Http::isXmlHttpRequest() from Zend Framework Code

public function isXmlHttpRequest()
{
return ($this->getHeader('X_REQUESTED_WITH') == 'XMLHttpRequest');
}

public function getHeader($header)
{
........
$temp = 'HTTP_' . strtoupper(str_replace('-', '_', $header));
if (!empty($_SERVER[$temp])) {
return $_SERVER[$temp];
}

Remove Duplicated Entries from MySQL Table

nospam@example.com (John Behrens) — Mon, 08 Feb 2010 14:13:38 +0100

This is a short tutorial how to remove duplicated entries from MySQL DB Table First idea was just to do a simple DELETE statement on a SubSelect

DELETE FROM user WHERE id IN (SELECT u2.id
FROM user AS u1
JOIN user AS u2 ON u1.name=u2.name
WHERE u1.id < u2.id)

Unfortunatelly this gives back an error message. #1093 - You can't specify target table 'ex_user' for update in FROM clause MySQL Documentation says about that

Error 1093 (ER_UPDATE_TABLE_USED) SQLSTATE = HY000 Message = "You can't specify target table 'x' for update in FROM clause" This error occurs in cases such as the following: UPDATE t1 SET column2 = (SELECT MAX(column1) FROM t1); You can use a subquery for assignment within an UPDATE statement because subqueries are legal in UPDATE and DELETE statements as well as in SELECT statements. However, you cannot use the same table (in this case, table t1) for both the subquery's FROM clause and the update target.

I was searching for a solution without using temporary table but didn´t find one yet.

CREATE TEMPORARY TABLE duplicated_temp(id INT) TYPE=HEAP;

INSERT INTO duplicated_temp SELECT u2.id FROM ex_user AS u1 JOIN user AS u2 ON u1.name=u2.name WHERE u1.id < u2.id;

DELETE FROM user WHERE id IN (SELECT id FROM duplicated_temp WHERE 1);

DROP TABLE duplicated_temp;

Well thats it.

Dynamic Model for Zend Framework

nospam@example.com (John Behrens) — Mon, 08 Feb 2010 00:27:19 +0100

I always liked some kind of auto generated model to access a database. I liked it the way Symfony does or the Zend Framework Tool. But anytime using a generator is also a bit of mess. The actual Zend Framework quickstart example has a 3 files way of implementing a Model, a Model Class, Model Mapper Class and Model DB Table ClassFew, so for one DB Table you always have to create 3 classes which look almost similar, most times you just copy and paste those, and change a few things. So i decided to create an very flexible model class, where you just need to define the properties and nothing more getter and sette methods will be called by magic functions. Even it has export function to an array. You don´t have to create anything but you can create your own functions for getter and setter methods which would override the default ones. In later state it could be possible to add a filter configurable in the model, but for first step i would like to keep it as slim as possible.

class Dynmodel_Model
{
protected $_id;
protected $_created;

public function __construct(array $options = null)
{
if (is_array($options)) {
$this->setOptions($options);
}
}
//
// Magic Call function
// @param <type> $name
// @param <type> $arguments
//@return <type>
//
public function __call($name, $arguments){

if(substr($name,0,3)=="set"){
return $this->__set(substr($name,3),$arguments[0]);
}
if(substr($name,0,3)=="get"){
return $this->__get(substr($name,3));
}
throw new Exception('Method '.$name.' not Supported');
}
//
// Magic Setter Class
// @param <type> $name
// @param <type> $value
//
public function __set($name, $value)
{
$method = 'set' . $name;
$propertyName="_".lcfirst($name);
if(method_exists($this, $method)){
method_exists($this, $method);
}elseif (('mapper' == $name) || !property_exists($this, $propertyName)) {
throw new Exception('Invalid Property '.$propertyName);
}elseif(property_exists($this, $propertyName)){
$this->$propertyName=$value;
}

}
//
// Magic getter class
// @param <type> $name
// @return <type>
//
public function __get($name)
{
$method = 'get' . $name;
$propertyName="_".lcfirst($name);
if(method_exists($this, $method)){
return $this->$method();
}elseif (('mapper' == $name) || !property_exists($this, $propertyName)) {
throw new Exception('Invalid Property '.$propertyName);
}else{
return $this->$propertyName;
}

}

public function setOptions(array $options)
{
$methods = get_class_methods($this);
foreach ($options as $key => $value) {
$method = 'set' . ucfirst($key);
if (in_array($method, $methods)) {
$this->$method($value);
}
}
return $this;
}

//
// Returning the Objects as Array
// @return Array
//
public function toArray(){
$values=array();
foreach(get_object_vars($this) as $pkey => $pvalue){
if(substr($pkey,0,1)=="_"){
$arrkey=substr($pkey,1);
$call="get".ucfirst(substr($arrkey,1));
//calling value through objects get function
$values[$arrkey]=$this->$call();
}
}
return $values;
}

}

The Danymic DBTable and DynamicMapper class are not tested yet, will post theme here later.

Zend Framework PHP based SOAP Server with Java JAX-RPC client

nospam@example.com (John Behrens) — Thu, 21 Jan 2010 13:22:27 +0100

This example shows how to create an Zend Framework based SOAP Server and connect to it by a Java Client. The process itself is really easy but some things ara a bit tricky for example at the status were i created it there were some problems if using WS style for the SOAP Server so i decided to use RPC style. The Server basically allows a user to logon by credentials and gives back a userstatus, the Java Client is connecting through this service and requesting the userstatus. The Soap Server Class

<?php
// orginal code has phpdoc compatible comments with slash star

//
// SoapUserServer Class
//
// @author
//

//
// Description of SoapUserServer
//
// @author johny
//
class Example_SoapUserServer {

//
//
// Returns Api Version
// @return string getApiVersion
//
public function getApiVersion()
{
$apiVersion="0.9.3";
return $apiVersion;
}

//
// getUser
// Returns user Status for a given Username, Password combination
// @param string $username
// @param string $password
// @return string getUserResponse
//
public function getUser($username, $password){

$adapter = new Example_AuthAdapter($username,$password);
$userStatus=false;

//retrive login
$auth = Zend_Auth::getInstance();
$auth->authenticate($adapter);

$acl = new Zend_Acl($auth);
if (!$auth->hasIdentity()) {
//user not valid
$userStatus=false;
}else{
//user okay
//@todo dynamic membership types
$membership=$auth->getIdentity()->getMembership();
if($membership && $membership->getMembershipTypeId()>=1){
$userStatus="premiummember";
}else{
$userStatus="normalmember";
}
}
if($userStatus!=false){
return $userStatus;
}else{
return "wrong credentials";
}
}

}
?>

Zend Controller for the Soap Server

<?php
class SoapController extends Zend_Controller_Action
{

//
// Zend Soap Server Action
// Representing the soap Server
///
public function serverAction(){
if(isset($_GET['wsdl']))
{
$autodiscover = new Zend_Soap_AutoDiscover();
$autodiscover->setBindingStyle(array('style' => 'rpc'));
$autodiscover->setClass('Example_SoapUserServer');
$autodiscover->handle();
exit;
}
// disabling WSDL cache cause we are still in Development
ini_set("soap.wsdl_cache_enabled", "0");
$server = new SoapServer('http://example.com/soap/server?wsdl');
$server->setClass('Example_SoapUserServer');
$server->handle();

$this->_helper->viewRenderer->setNoRender();
$this->_helper->layout->disableLayout();
}

}

?>

Java Client Code With Netbeans a webservice client is really easy to create, right click on the project create new "Web Service Client" More Information: http://netbeans.org/kb/docs/websvc/jax-ws.html JAX RPC Style works better with Zend Framework and PHP. The Stub and Port classes will be Auto generated by Netbeans, so you don´t need to worry about that.

package eu.webconsults.myapp.userauth;

import java.rmi.RemoteException;
import myapp.userauth.Example_SoapUserServerPort_Stub;
import myapp.userauth.Example_SoapUserServerService_Impl;

//
// User Authorization class using Soap Server
// @author johny
//

public class UserAuth {
String username = null;
String password = null;
String usertype = null;
Boolean isAuthorized = false;
Example_SoapUserServerPort_Stub stub;

//
// Authenticating remote
//
// @param username
// @param password
///
public UserAuth(String username, String password)
{
this.username = username;
this.password=password;
this.retrieveRemoteUserStatus();

}
//
// Retriving remote User Status from Stub
// @return
///
private String retrieveRemoteUserStatus(){
try{
this.usertype = this.getStub().getUser(this.username, this.password);
if(!this.usertype.equals("wrong credentials")){
this.isAuthorized=true;
}else{
this.isAuthorized=false;
}
} catch(RemoteException re){
System.out.println("Remote Exception"+re.getMessage());
}
return this.usertype;
}

//
//
// @return
//
private Example_SoapUserServerPort_Stub getStub(){
if(this.stub == null){
this.stub=(Example_SoapUserServerPort_Stub) (new Example_SoapUserServerService_Impl().getExample_SoapUserServerPort());
}
return this.stub;
}

//
// Getting Username
// @return
//
public String getUsername(){
return this.username;
}

//
// Getting Password
// @return
//
public String getPassword(){
return this.password;
}

//
// Returning Usertype
// @return
//
public String getUsertype(){
return this.usertype;
}
}

Osapi Session Storage

nospam@example.com (John Behrens) — Tue, 29 Dec 2009 01:23:46 +0100

Using the OSAPI Open Social API, i noticed there is no session storage available by default, so this is a very quick way to implement a PHP-Session Bages Storage

// Session Storage implements Openid Storage Inside PHP Session,
//for me the easiest way to handle openId data
//

// Description of osapiSessionStorage
//
//@author John Behrens (john.behrens@webconsults.eu)
//
class osapiSessionStorage extends osapiStorage{

//
// Retrieves the data for the given key, or false if they
// key is unknown or expired
//
// @param String $key The key who's data to retrieve
// @param int $expiration Experiration time in seconds
//
public function get($key, $expiration = false){
if(!isset($_SESSION['osapi'])){
return false;
}
if(isset($_SESSION['osapi'][$key])){
return $_SESSION['osapi'][$key];
}else{
return false;
}
}

//
//Store the key => $value set. The $value is serialized
// by this function so can be of any type
//
//@param String $key Key of the data
// @param Any-type $value the data
//
public function set($key, $value){
$_SESSION['osapi'][$key]=$value;
}

//
// Removes the key/data pair for the given $key
//
// @param String $key
//
public function delete($key){
unset($_SESSION['osapi'][$key]);
}

}

?>

One more reason why Symfony **cks

nospam@example.com (John Behrens) — Thu, 22 Oct 2009 16:43:41 +0200

I was working with

form_remote_tag()

which is a usefull function if you create forms using AJAX request. Simple usage is easy

<?php echo form_remote_tag(array(
'update' => 'item_list',
'url' => 'item/add',
)) ?>

Executes the URL Item Add and replaces content of the Element with item_list with it´s result. Well what i would like to now is a Form which is permanent viewable and will reset itself if sended. What i guessed

<?php echo form_remote_tag(array(
'update' => 'list',
'url' => 'entrys/create',
'complete' => "Form.reset('myForm')",
'id'=>'myForm'
)); ?>

Well who that doesn´t work, form_remote_tag doesnt know an property called id, you have to hang it behind as html code

<?php echo form_remote_tag(array(
'update' => 'list',
'url' => 'rntrys/create',
'complete' => "Form.reset('myForm')"
),"id='myForm' "); ?>

This way it works, too bad the documentation on it is that poor. But 10 Reasons why Symfony **cks helped me out finding the right solution. However i still think updating a whole element with the list is the wrong way, i would like to use JSON and DOM Manipulation for that, to add exact one entry to the list, i gonna work that out now.

Tooltip Div with Jquery

nospam@example.com (John Behrens) — Mon, 12 Oct 2009 16:46:03 +0200

Searching the web i found a lot of solutions and ToolTip Plugins wie z.b. Simpletip oder really simple tooltop, but after i had a short look at some i decided that they are all more or less usefull. The most usuable entry i found was a short entry at Stackoverflow telling me anything i need to know. My basic requirement was, Javascript code has to be Seperated from the design and the Webpage content. So my php template looks like this

<? foreach($entrys as $entry): ?>
<div id="entrylink_<?=$entry->id?>">
<a href="<?=$entry->link?>" onMouseOver="showEntryPreview('<?=$entry->id?>')" onMouseOut="hideEntryPreview('<?=$entry->id?>')"><?=$entry->name?></a>
</div>
<div id="entryinfo_<?=$entry->id?>" class="entry_preview">
... some more information ....
</div>

<?enforeach;?>

So this was set cause whoever willing to change the content or layer of the tool-tip or preview div, however you like to call it, should be able to change it without touching the JS functionallity. So what i need to added now was CSS definition to hide tool-tip layer.

.entry_preview{
position:absolute;
z-index:999;
left:-9999px;
background-color:#FF0000;
padding:5px;
border:1px solid #fff;
width:250px;

So anybody could change layout later. Now everything is needed is not an extra plugin or collection of plugins it´s just a few lines of JS code using jquery

function showUserInfo(entryId){
var divOverlay=$('#entrylink_'+entryId);
var divParent=$('#entryinfo_'+entryId);

var parentPosition=divParent.position();
var parentWidth=divParent.width();
var parentHeight=divParent.height();

divOverlay.css('left', parentPosition.left+parentWidth);
divOverlay.css('top', parentPosition.top+parentHeight);
divOverlay.css('visibility', 'visible');
}
function hideUserInfo(entryId){
$('#entryinfo_'+userId).css('visibility', 'hidden');

}

I always wonder wy people code so many plugins for just so simple things, keep anything more complicated. Okay maybe it´s easier reusable but through most of them will not be maintained in one year or maybe are already lying arround for month, it is easier to just do it yourself. Even this solutions has some Advantages cause the Tooltip Div is already existing inside the site, Javascript doesnt need to pass through all links like for example here. And also a crawler would be able to read the content of the Tooltip Divs easiely. But however in some cases it makes sense to read the content of the Tooltip-Layers later for example if they requery more data, big pictures, calculations etc, it might be an option to read them later by Ajax Request.

Sending and Rendering Emails with Zend Framework

nospam@example.com (John Behrens) — Sun, 02 Aug 2009 02:18:32 +0200

It took me a little while to figure out to solve a standard problem like sending an template or view script as email, the main problem is the original documentation doesn´t show anything about it, just sending email with text from a string, and if you search on the web, you find mostly the same thing or solutions which were not satisfying me.

//Rendering mail template to string
$mail_view = new Zend_View();
$mail_view = new Zend_View();
/<strong>
</strong> This will only work inside the MVC vontroller and
<strong> handle over script path to the email view renderer
</strong>/
$mail_view->addScriptPath($this->view->getScriptPaths());
$strMailBody=$mail_view->render('controllername/mail.phtml');

//configuring email
$email_recipient_mail="recipient@example.com";
$email_recipient_name="Recipient Name";
$email_subject="Subject for the Email";
$email_sender_email="sender@example.com";
$email_sender_name="Sender Name";

//sending email with Zend_Mail()
$mail = new Zend_Mail ();

$mail->setFrom ($email_sender_email, $email_sender_email);
$mail->addTo ($email_recipient_mail, $email_recipient_name);
$mail->setSubject($email_subject);
$mail->setBodyText($strMailBody);
$mail->send ();

The mail Template "mail.phtml" could contain text or HTML. Finally i choosed out this method as the best for sending email in Zend Framework Projects, maybe there would be one more better way, if i could put the subject inside the template file, i gonna save that for later.

Internationalization in User Generated Enviorments

nospam@example.com (John Behrens) — Thu, 30 Jul 2009 22:59:08 +0200

User generated content in multilingual enviorments brings up new internationalizations problems, in a social network or other enviorment with a lot of User Generated content, I18N could not be sticked strictly to the user, and even a content or discussion could be spreaden through different languages. On usual websites a language is assigned to the frontend user, also on Youtube where it causes some problems. I always recieve Mails like

Komentarze do filmu „>videoname<” Comentario sobre ">videoname<" publicado Reactie van >userwhopostedcomment< op ,>videoname<' Nouveau commentaire sur ">videoname<" Kommentar zu ">videoname<" gepostet" gepostet

Which all mean your video ... has been commented by ..., but it´s alsways in the default language to the commentor, no matter what my language is and no matter which language the comment is Written in. Comments itself are mostly written in english or the language the video is in. A solution could be to send it just in the recipient´s default language instead the actual frontend language, it would just make it easier for the recipient.

Jeroen - Moie Video, echt Leuk Tommy - Why are all the Comments in Dutch Franz - Die Holländer finden ihre Sprache so Toll Antje - Ihre Sprache ist auch Supertoll Joost - Duits is alleen voor Moffen Tommy - In English Please Joost - German is for Kauts Only Franz - Geh doch Käse essen du Kaaskopp

As you see users could communicate through different Languages, and maybe they even like it and switch Languages during a conversation, if you wanna run your site with an international flavour this is acceptable. Language Detection Language Detection could be usefull, to translate auto detection for example, but you could also hide content with Language Detection For Example: I got a Guestbook entry on my Dutch Netlog, somebody commentet the guestbook in German with something like "Hi ich habe ein bischen Deutsch gelernt, Wie geht es dir? viele grüsse". This entry were hidden cause it weren´t written in my actual frontend Language (Dutch), but actually i had choosen German as native language in my profile. So if you use something like Language Detection to hide content from foreign Languages, you must consider a user could be able to understand more than one language. Hiding content from the user is mostly a bad decission, cause even if the user is not able to read information might be usefull. The better way is always to sign the entry as an entry with different language and offer automated translation possibility. Where it could make sense to hide content is if a user is doing a general search on contents, at least in order of the search results.

Zend Debug Logger

nospam@example.com (John Behrens) — Fri, 26 Jun 2009 16:53:59 +0200

http://extraordinaire.me/web-development/bootstrap-zend-framework/