Previous Next

Zend_Service_Akismet

Introduction

Zend_Service_Akismet provides a client for the » Akismet API. The Akismet service is used to determine if incoming data is potentially spam; it also exposes methods for submitting data as known spam or as false positives (ham). Originally intended to help categorize and identify spam for Wordpress, it can be used for any type of data.

Akismet requires an API key for usage. You may get one for signing up for a » WordPress.com account. You do not need to activate a blog; simply acquiring the account will provide you with the API key.

Additionally, Akismet requires that all requests contain a URL to the resource for which data is being filtered, and, because of Akismet's origins in WordPress, this resource is called the blog url. This value should be passed as the second argument to the constructor, but may be reset at any time using the setBlogUrl() accessor, or overridden by specifying a 'blog' key in the various method calls.

Verify an API key

Zend_Service_Akismet::verifyKey($key) is used to verify that an Akismet API key is valid. In most cases, you will not need to check, but if you need a sanity check, or to determine if a newly acquired key is active, you may do so with this method.

verifyKey($apiKey) {
echo "Key is valid.\n";
} else {
echo "Key is not valid\n";
}

If called with no arguments, verifyKey() uses the API key provided to the constructor.

verifyKey() implements Akismet's verify-key REST method.

Check for spam

Zend_Service_Akismet::isSpam($data) is used to determine if the data provided is considered spam by Akismet. It accepts an associative array as the sole argument. That array requires the following keys be set:

  • user_ip, the IP address of the user submitting the data (not your IP address, but that of a user on your site).

  • user_agent, the reported UserAgent string (browser and version) of the user submitting the data.

The following keys are also recognized specifically by the API:

  • blog, the fully qualified URL to the resource or application. If not specified, the URL provided to the constructor will be used.

  • referrer, the content of the HTTP_REFERER header at the time of submission. (Note spelling; it does not follow the header name.)

  • permalink, the permalink location, if any, of the entry the data was submitted to.

  • comment_type, the type of data provided. Values specifically specified in the API include 'comment', 'trackback', 'pingback', and an empty string (''), but it may be any value.

  • comment_author, name of the person submitting the data.

  • comment_author_email, email of the person submitting the data.

  • comment_author_url, URL or home page of the person submitting the data.

  • comment_content, actual data content submitted.

You may also submit any other environmental variables you feel might be a factor in determining if data is spam. Akismet suggests the contents of the entire $_SERVER array.

The isSpam() method will return either true or false, and throw an exception if the API key is invalid.

Example #1 isSpam() Usage

 '111.222.111.222',
    'user_agent'           => 'Mozilla/5.0 (Windows; U; Windows NT 5.2; en-GB; rv:1.8.1) Gecko/20061010 Firefox/2.0',
    'comment_type'         => 'contact',
    'comment_author'       => 'John Doe',
    'comment_author_email' => 'nospam@myhaus.net',
    'comment_content'      => "I'm not a spammer, honest!"
);
if ($akismet->isSpam($data)) {
    echo "Sorry, but we think you're a spammer.";
} else {
    echo "Welcome to our site!";
}

isSpam() implements the comment-check Akismet API method.

Submitting known spam

Occasionally spam data will get through the filter. If in your review of incoming data you discover spam that you feel should have been caught, you can submit it to Akismet to help improve their filter.

Zend_Service_Akismet::submitSpam() takes the same data array as passed to isSpam(), but does not return a value. An exception will be raised if the API key used is invalid.

Example #2 submitSpam() Usage

 '111.222.111.222',
    'user_agent'           => 'Mozilla/5.0 (Windows; U; Windows NT 5.2; en-GB; rv:1.8.1) Gecko/20061010 Firefox/2.0',
    'comment_type'         => 'contact',
    'comment_author'       => 'John Doe',
    'comment_author_email' => 'nospam@myhaus.net',
    'comment_content'      => "I'm not a spammer, honest!"
);
$akismet->submitSpam($data));

submitSpam() implements the submit-spam Akismet API method.

Submitting false positives (ham)

Occasionally data will be trapped erroneously as spam by Akismet. For this reason, you should probably keep a log of all data trapped as spam by Akismet and review it periodically. If you find such occurrences, you can submit the data to Akismet as "ham", or a false positive (ham is good, spam is not).

Zend_Service_Akismet::submitHam() takes the same data array as passed to isSpam() or submitSpam(), and, like submitSpam(), does not return a value. An exception will be raised if the API key used is invalid.

Example #3 submitHam() Usage

 '111.222.111.222',
    'user_agent'           => 'Mozilla/5.0 (Windows; U; Windows NT 5.2; en-GB; rv:1.8.1) Gecko/20061010 Firefox/2.0',
    'comment_type'         => 'contact',
    'comment_author'       => 'John Doe',
    'comment_author_email' => 'nospam@myhaus.net',
    'comment_content'      => "I'm not a spammer, honest!"
);
$akismet->submitHam($data));

submitHam() implements the submit-ham Akismet API method.

Zend-specific Accessor Methods

While the Akismet API only specifies four methods, Zend_Service_Akismet has several additional accessors that may be used for modifying internal properties.

  • getBlogUrl() and setBlogUrl() allow you to retrieve and modify the blog URL used in requests.

  • getApiKey() and setApiKey() allow you to retrieve and modify the API key used in requests.

  • getCharset() and setCharset() allow you to retrieve and modify the character set used to make the request.

  • getPort() and setPort() allow you to retrieve and modify the TCP port used to make the request.

  • getUserAgent() and setUserAgent() allow you to retrieve and modify the HTTP user agent used to make the request. Note: this is not the user_agent used in data submitted to the service, but rather the value provided in the HTTP User-Agent header when making a request to the service.

    The value used to set the user agent should be of the form some user agent/version | Akismet/version. The default is Zend Framework/ZF-VERSION | Akismet/1.11, where ZF-VERSION is the current Zend Framework version as stored in the Zend_Framework::VERSION constant.

Previous Next
Introduction to Zend Framework
Présentation
Installation
Zend_Acl
Introduction
Affiner les Contrôles d'Accès
Utilisation avancée
Zend_Auth
Introduction
Authentification avec une table de base de données
Authentification "Digest"
Adaptateur d'authentification HTTP
LDAP Authentication
Authentification OpenID
Zend_Cache
Introduction
La théorie du cache
Les frontends Zend_Cache
Les backends Zend_Cache
Zend_Captcha
Introduction
Captcha Operation
Captcha Adapters
Zend_Config
Introduction
Point de vue théorique
Zend_Config_Ini
Zend_Config_Xml
Zend_Console_Getopt
Introduction à Getopt
Déclarer les règles Getopt
Extraire les options et les arguments
Configurer Zend_Console_Getopt
Zend_Controller
Zend_Controller - Démarrage rapide
Fondations de Zend_Controller
Le contrôleur frontal (Front Controller)
L'objet Requête
Routeur Standard : Zend_Controller_Router_Rewrite
Le dispatcheur
Contrôleurs d'action
Aides d'action (Helper)
Objet de réponse
Plugins
Utilisation de conventions de dossiers modulaires
Exceptions avec MVC
Migrer depuis des versions précédentes
Zend_Currency
Introduction à Zend_Currency
How to work with currencies
Migrer depuis des versions antérieures
Zend_Date
Introduction
Point de vue théorique
Méthodes de base
Zend_Date API Overview
Créer des dates
Constants for General Date Functions
Exemples concrets
Zend_Db
Zend_Db_Adapter
Zend_Db_Statement
Zend_Db_Profiler
Zend_Db_Select
Zend_Db_Table
Zend_Db_Table_Row
Zend_Db_Table_Rowset
Relations Zend_Db_Table
Zend_Debug
Afficher des informations
Zend_Dojo
Introduction
Zend_Dojo_Data: dojo.data Envelopes
Les aides de vues Dojo
Les éléments de formulaire et les décorateurs Dojo
Zend_Dom
Introduction
Zend_Dom_Query
Zend_Exception
Utiliser les exceptions
Zend_Feed
Introduction
Importer des flux
Obtenir des flux à partir de pages Web
Consommer un flux RSS
Consommer un flux Atom
Consommer une entrée Atom particulière
Modifier la structure du flux ou des entrées
Classes personnalisées pour les flux et entrées
Zend_File
Zend_File_Transfer
Validators for Zend_File_Transfer
Zend_Filter
Introduction
Classes de filtre standards
Chaînes de filtrage
Écriture de filtres
Zend_Filter_Input
Zend_Filter_Inflector
Zend_Form
Zend_Form
Zend_Form Quick Start
Creating Form Elements Using Zend_Form_Element
Creating Forms Using Zend_Form
Creating Custom Form Markup Using Zend_Form_Decorator
Standard Form Elements Shipped With Zend Framework
Standard Form Decorators Shipped With Zend Framework
Internationalization of Zend_Form
Advanced Zend_Form Usage
Zend_Gdata
Introduction à Gdata
Authentification par procédé AuthSub
Authentification avec ClientLogin
Using Google Calendar
Using Google Documents List Data API
Using Google Spreadsheets
Using Google Apps Provisioning
Using Google Base
Utiliser l'API YouTube
Utilisation des albums Web Picasa
Attraper les exceptions Gdata
Zend_Http
Zend_Http_Client - Introduction
Zend_Http_Client - Utilisation avancée
Zend_Http_Client - Adaptateurs de connexion
Zend_Http_Cookie and Zend_Http_CookieJar
Zend_Http_Response
Zend_InfoCard
Introduction
Zend_Json
Introduction
Utilisation de base
Objets JSON
XML to JSON conversion
Zend_Json_Server - JSON-RPC server
Zend_Layout
Introduction
Zend_Layout - Démarrage rapide
Zend_Layout options de configuration
Zend_Layout, utilisation avancée
Zend_Ldap
Introduction
Zend_Loader
Charger les fichiers et les classes dynamiquement
Chargeur de Plugins
Zend_Locale
Introduction
Using Zend_Locale
Normalization and Localization
Working with Dates and Times
Supported Languages for Locales
Supported Regions for Locales
Zend_Log
Présentation
Rédacteurs (Writers)
Formateurs (mise en forme)
Filtres
Zend_Mail
Introduction
Envoyer des emails en utilisant SMTP
Envoyer plusieurs emails par connexion SMTP
Utiliser différents transports
Email HTML
Fichiers joints
Ajouter des destinataires
Contrôler les limites MIME
Entêtes additionnelles
Jeux de caractères
Encodage
Authentification SMTP
Sécuriser les transports SMTP
Lire des emails
Zend_Measure
Introduction
Création d'une mesure
Récupérer des mesures
Manipuler des mesures
Types de mesures
Zend_Memory
Présentation
Manager de mémoire
Objet mémoire
Zend_Mime
Zend_Mime
Zend_Mime_Message
Zend_Mime_Part
Zend_OpenId
Introduction
Zend_OpenId_Consumer Basics
Zend_OpenId_Provider
Zend_Paginator
Introduction
Usage
Configuration
Advanced usage
Zend_Pdf
Introduction.
Créer et charger des documents PDF
Sauvegarder les changement dans un document PDF
Les pages d'un document
Dessiner
Informations du document et métadonnées.
Exemple d'utilisation du module Zend_Pdf
Zend_Registry
Utiliser le registre
Zend_Rest
Introduction
Zend_Rest_Client
Zend_Rest_Server
Zend_Search_Lucene
Overview
Building Indexes
Searching an Index
Query Language
Query Construction API
Character Set
Extensibility
Interoperating with Java Lucene
Advanced
Best Practices
Zend_Server
Introduction
Zend_Server_Reflection
Zend_Service
Introduction
Zend_Service_Akismet
Zend_Service_Amazon
Zend_Service_Audioscrobbler
Zend_Service_Delicious
Zend_Service_Flickr
Zend_Service_Nirvanix
Zend_Service_ReCaptcha
Zend_Service_Simpy
Introduction
Zend_Service_StrikeIron
Zend_Service_StrikeIron: Bundled Services
Zend_Service_StrikeIron: Advanced Uses
Zend_Service_Technorati
Zend_Service_Yahoo
Zend_Session
Introduction
Usage basique
Utilisation avancée
Global Session Management
Zend_Session_SaveHandler_DbTable
Zend_Soap
Zend_Soap_Server
Zend_Soap_Client
WSDL Accessor
AutoDiscovery. Introduction
Class autodiscovering.
Functions autodiscovering.
Autodiscovering. Datatypes.
Zend_Test
Introduction
Zend_Test_PHPUnit
Zend_Text
Zend_Text_Figlet
Zend_TimeSync
Introduction
Utiliser Zend_TimeSync
Zend_Translate
Introduction
Adaptateurs pour Zend_Translate
Utiliser les adaptateurs de traduction
Zend_Uri
Zend_Uri
Zend_Validate
Introduction
Classes de validation standard
Chaînes de validation
Ecrire des validateurs
Zend_Version
Lire la version du Zend Framework
Zend_View
Introduction
Scripts de contrôleur
Scripts de vue
Aides de vue
Zend_View_Abstract
Zend_Wildfire
Zend_Wildfire
Zend_XmlRpc
Introduction
Zend_XmlRpc_Client
Zend_XmlRpc_Server
Configuration système requise par le Zend Framework
Version de PHP requise
Extensions PHP
Les composants du Zend Framework
Dépendances internes du Zend Framework
Convention de codage PHP du Zend Framework
Vue d'ensemble
Formatage des fichiers PHP
Conventions de nommage
Style de codage
Informations de copyright