First commit: a working plugin

AgencyPMG · Aug 29, 2012 · fed31a0 · fed31a0
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diff --git a/readme.txt b/readme.txt
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+=== Rel Publisher ===
+Contributors: chrisguitarguy, agencypmg
+Donate link: http://www.pwsausa.org/give.htm
+Tags: google+, google plus, social, rel publisher
+Requires at least: 3.4
+Tested up to: 3.4.1
+Stable tag: 1.0
+License: GPLv2
+License URI: http://www.gnu.org/licenses/gpl-2.0.html
+
+Rel Publisher is a simple plugin that lets you easily add &lt;link rel="publisher" /&gt; to your site.
+
+== Description ==
+
+Google+ pages can verify their URLs by adding `<link rel="publisher" href="your_plus_page_here" />` to the `<head>` section of a website.
+
+This plugin lets you do that.
+
+[More information](http://support.google.com/plus/bin/answer.py?hl=en&answer=1713826) on the Google+ help pages.
+
+== Installation ==
+
+Use the built in installer or
+
+1. Click the big button to download the latest version
+2. Unzip the file and place the `rel-publisher` folder in your plugin directory
+3. Login and activate the plugin
+
+== Frequently Asked Questions ==
+
+= Where is the options page? =
+
+There isn't one.  Just a single field and section on the general options page.
+
+== Screenshots ==
+
+1. The field on the admin page.
+
+== Changelog ==
+
+= 1.0 =
+* First version.
+
+== Upgrade Notice ==
+
+n/a
diff --git a/rel-publisher.php b/rel-publisher.php
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+<?php
+/*
+Plugin Name: Rel Publisher
+Plugin URI: https://github.com/AgencyPMG/Rel-Publisher
+Description: A simple plugin that adds a <link rel="publisher" /> to your <head> section -- userful for Google+
+Version: 1.0
+Text Domain: rel-publisher
+Domain Path: /lang
+Author: Christopher Davis
+Author URI: http://pmg.co/people/chris
+License: GPL2
+
+    Copyright 2012 Performance Media Group <seo@pmg.co>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License, version 2, as 
+    published by the Free Software Foundation.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+PMG_Rel_Publisher::init();
+
+class PMG_Rel_Publisher
+{
+    /**
+     * Our option name
+     * 
+     * @since   1.0
+     */
+    const OPTION = 'pmg_rel_publisher';
+
+    /**
+     * Page on which this option will reside.
+     *
+     * @since   1.0
+     */
+    const PAGE = 'general';
+
+    /**
+     * Secton for this option.
+     *
+     * @since   1.0
+     */
+    const SECT = 'rel_publisher';
+
+    /**
+     * Adds actions and such.
+     *
+     * @since   1.0
+     * @access  public
+     * @uses    add_action
+     * @return  null
+     */
+    public static function init()
+    {
+        add_action(
+            'admin_init',
+            array(__CLASS__, 'settings')
+        );
+
+        add_action(
+            'wp_head',
+            array(__CLASS__, 'head'),
+            3
+        );
+    }
+
+    /**
+     * Hooked into `admin_init`.  Registers the settings and adds settings
+     * fields and sections.
+     *
+     * @since   1.0
+     * @access  public
+     * @uses    register_setting
+     * @uses    add_settings_section
+     * @uses    add_settings_field
+     * @return  null
+     */
+    public static function settings()
+    {
+        register_setting(
+            self::PAGE,
+            self::OPTION,
+            array(__CLASS__, 'validate')
+        );
+
+        add_settings_section(
+            self::SECT,
+            __('Rel Publisher', 'rel-publisher'),
+            '__return_false',
+            self::PAGE
+        );
+
+        add_settings_field(
+            'rel-publisher-gplus',
+            __('Google+ URL', 'rel-publisher'),
+            array(__CLASS__, 'field'),
+            self::PAGE,
+            self::SECT,
+            array('label_for' => self::OPTION)
+        );
+    }
+
+    /**
+     * Callback function for the settings field.
+     *
+     * @since   1.0
+     * @access  public
+     * @uses    get_option
+     * @uses    esc_attr
+     * @return  null
+     */
+    public static function field()
+    {
+        printf(
+            '<input type="text" class="regular-text" id="%1$s" name="%1$s" value="%2$s" />',
+            esc_attr(self::OPTION),
+            esc_attr(get_option(self::OPTION, ''))
+        );
+    }
+
+    /**
+     * Settings validation callback.  Escapes the URL if it happens to be there.
+     *
+     * @since   1.0
+     * @access  public
+     * @uses    esc_url_raw
+     * @return  string Empty or the escaped URL.
+     */
+    public static function validate($dirty)
+    {
+        $clean = '';
+        if($dirty)
+            $clean = esc_url_raw($dirty);
+
+        return $clean;
+    }
+
+    /**
+     * Hooked into `wp_head`.  Spits out the rel="publish" link if we have a
+     * google+ url.
+     *
+     * @since   1.0
+     * @access  public
+     * @uses    get_option
+     * @return  null
+     */
+    public static function head()
+    {
+        $gplus = get_option(self::OPTION);
+
+        if(!$gplus)
+            return;
+
+        printf("<link rel='publisher' href='%s' />\n", esc_url($gplus));
+    }
+} // end class
diff --git a/screenshot-1.png b/screenshot-1.png