409 lines
13 KiB
PHP
409 lines
13 KiB
PHP
<?php
|
|
/**
|
|
Plugin Name: Freifunk Metadata Shortcodes
|
|
Plugin URI: http://mschuette.name/
|
|
Description: Defines shortcodes to display Freifunk metadata
|
|
Version: 0.4dev
|
|
Author: Martin Schuette
|
|
Author URI: http://mschuette.name/
|
|
*/
|
|
|
|
define( 'FF_META_DEFAULT_CACHETIME', 15 );
|
|
define( 'FF_META_DEFAULT_DIR', 'https://raw.githubusercontent.com/freifunk/directory.api.freifunk.net/master/directory.json' );
|
|
define( 'FF_META_DEFAULT_CITY', 'hamburg' );
|
|
|
|
/**
|
|
* class to fetch and cache data from external URLs
|
|
*/
|
|
class FF_Meta_Externaldata
|
|
{
|
|
public function get( $url ) {
|
|
/* gets metadata from URL, handles caching */
|
|
$cachekey = 'ff_metadata_'.hash( 'crc32', $url );
|
|
$cachetime = get_option( 'ff_meta_cachetime', FF_META_DEFAULT_CACHETIME ) * MINUTE_IN_SECONDS;
|
|
|
|
// Caching
|
|
if ( false === ( $data = get_transient( $cachekey ) ) ) {
|
|
$http_response = wp_remote_get( $url );
|
|
$json = wp_remote_retrieve_body( $http_response );
|
|
$data = json_decode( $json, $assoc = true );
|
|
set_transient( $cachekey, $data, $cachetime );
|
|
}
|
|
return $data;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* holds the community directory
|
|
*/
|
|
class FF_Directory
|
|
{
|
|
private $directory;
|
|
|
|
function __construct() {
|
|
$ed = new FF_Meta_Externaldata();
|
|
$this->directory = $ed->get( FF_META_DEFAULT_DIR );
|
|
}
|
|
|
|
function get_url_by_city( $city ) {
|
|
$val = $this->directory[$city];
|
|
|
|
if ( empty( $val ) ) {
|
|
return false;
|
|
} else {
|
|
return $val;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* OO interface to handle a single community/city
|
|
*/
|
|
class FF_Community
|
|
{
|
|
public $name;
|
|
public $street;
|
|
public $zip;
|
|
public $city;
|
|
public $lon;
|
|
public $lat;
|
|
|
|
/**
|
|
* Default constructor from metadata
|
|
*/
|
|
function __construct( $metadata ) {
|
|
$loc = $metadata['location'];
|
|
$this->name = ( isset( $loc['address'] ) && isset( $loc['address']['Name'] ) ) ? $loc['address']['Name'] : '';
|
|
$this->street = ( isset( $loc['address'] ) && isset( $loc['address']['Street'] ) ) ? $loc['address']['Street'] : '';
|
|
$this->zip = ( isset( $loc['address'] ) && isset( $loc['address']['Zipcode'] ) ) ? $loc['address']['Zipcode'] : '';
|
|
$this->city = isset( $loc['city'] ) ? $loc['city'] : '';
|
|
$this->lon = isset( $loc['lon'] ) ? $loc['lon'] : '';
|
|
$this->lat = isset( $loc['lat'] ) ? $loc['lat'] : '';
|
|
}
|
|
|
|
/**
|
|
* Alternative constructor from city name
|
|
*/
|
|
static function make_from_city( $city ) {
|
|
// TODO: test
|
|
if ( false === ( $url = $this->dir->get_url_by_city( $city ) ) ) {
|
|
return "<!-- FF Meta Error: cannot get directory.json, or no URL for '$city' -->\n";
|
|
}
|
|
if ( false === ( $metadata = FF_Meta_Externaldata::get( $url ) ) ) {
|
|
return "<!-- FF Meta Error: cannot get metadata from $url -->\n";
|
|
}
|
|
return new FF_Community( $metadata );
|
|
}
|
|
|
|
function format_address() {
|
|
if ( empty( $this->name ) || empty( $this->street ) || empty( $this->zip ) ) {
|
|
return '';
|
|
}
|
|
// TODO: style address + map as single box
|
|
// TODO: once it is "ready" package openlayers.js into the plugin ( cf. http://docs.openlayers.org/library/deploying.html )
|
|
// TODO: handle missing values ( i.e. only name & city )
|
|
return '<p>' . sprintf( '%s<br/>%s<br/>%s %s', $this->name, $this->street, $this->zip, $this->city ) . '</p>';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* main class for whole plugin
|
|
*/
|
|
class FF_Meta
|
|
{
|
|
private $dir;
|
|
|
|
function __construct() {
|
|
$this->dir = new FF_Directory();
|
|
}
|
|
|
|
function register_stuff() {
|
|
if ( ! shortcode_exists( 'ff_state' ) ) {
|
|
add_shortcode( 'ff_state', array( $this, 'shortcode_handler' ) );
|
|
}
|
|
if ( ! shortcode_exists( 'ff_services' ) ) {
|
|
add_shortcode( 'ff_services', array( $this, 'shortcode_handler' ) );
|
|
}
|
|
if ( ! shortcode_exists( 'ff_contact' ) ) {
|
|
add_shortcode( 'ff_contact', array( $this, 'shortcode_handler' ) );
|
|
}
|
|
if ( ! shortcode_exists( 'ff_location' ) ) {
|
|
add_shortcode( 'ff_location', array( $this, 'shortcode_handler' ) );
|
|
}
|
|
|
|
add_action( 'admin_menu', array( $this, 'admin_menu' ) );
|
|
add_action( 'admin_init', array( $this, 'admin_init' ) );
|
|
register_uninstall_hook( __FILE__, array( 'ff_meta', 'uninstall_hook' ) );
|
|
}
|
|
|
|
function output_ff_state( $citydata ) {
|
|
$state = $citydata['state'];
|
|
return sprintf( '%s', $state['nodes'] );
|
|
}
|
|
|
|
function aux_get_all_locations() {
|
|
// gather all location data
|
|
if ( false === ( $json_locs = get_transient( 'FF_metadata_json_locs' ) ) ) {
|
|
$all_locs = array();
|
|
$arr_select = array( 'lat' => 1, 'lon' => 1 );
|
|
foreach ( $this->dir as $tmp_city => $url ) {
|
|
try {
|
|
$tmp_meta = FF_Meta_Externaldata::get( $url );
|
|
if ( ! empty( $tmp_meta['location'] ) ) {
|
|
$tmp_loc = array_intersect_key( $tmp_meta['location'], $arr_select );
|
|
$all_locs[$tmp_city] = $tmp_loc;
|
|
}
|
|
} catch ( Exception $e ) {
|
|
// pass
|
|
}
|
|
}
|
|
$json_locs = json_encode( $all_locs );
|
|
$cachetime = get_option( 'FF_meta_cachetime', FF_META_DEFAULT_CACHETIME ) * MINUTE_IN_SECONDS;
|
|
set_transient( 'FF_metadata_json_locs', $json_locs, $cachetime );
|
|
}
|
|
return $json_locs;
|
|
}
|
|
|
|
function output_ff_location( $citydata ) {
|
|
// normal per-city code
|
|
$loc = new FF_Community( $citydata );
|
|
$outstr = $loc->format_address();
|
|
$json_locs = $this->aux_get_all_locations();
|
|
|
|
if ( ! empty( $loc_name ) && ! empty( $loc_name ) ) {
|
|
$icon_url = plugin_dir_url( __FILE__ ) . 'freifunk_marker.png';
|
|
$outstr .= <<<EOT
|
|
<div id="mapdiv_$loc_city" style="width: 75%; height: 15em;"></div>
|
|
|
|
<style type="text/css"> <!--
|
|
/* There seems to be a bug in OpenLayers' style.css ( ? ). Original bottom:4.5em is far too high. */
|
|
#OpenLayers_Control_Attribution_7 { bottom: 3px; }
|
|
--></style>
|
|
|
|
<script src="http://www.openlayers.org/api/OpenLayers.js"></script>
|
|
<script>
|
|
map = new OpenLayers.Map( "mapdiv_$loc->city" );
|
|
map.addLayer( new OpenLayers.Layer.OSM( ) );
|
|
|
|
var lonLat = new OpenLayers.LonLat( $loc->lon, $loc->lat )
|
|
.transform(
|
|
new OpenLayers.Projection( "EPSG:4326" ), // transform from WGS 1984
|
|
map.getProjectionObject() // to Spherical Mercator Projection
|
|
);
|
|
|
|
var markers = new OpenLayers.Layer.Markers( "Markers" );
|
|
map.addLayer( markers );
|
|
|
|
markers.addMarker( new OpenLayers.Marker(lonLat ) );
|
|
|
|
var size = new OpenLayers.Size( 20,16 );
|
|
var offset = new OpenLayers.Pixel( 0, -(size.h/2 ) );
|
|
var icon = new OpenLayers.Icon( '$icon_url',size,offset );
|
|
|
|
var ff_loc = $json_locs;
|
|
delete ff_loc["$city"];
|
|
for ( key in ff_loc ) {
|
|
markers.addMarker( new OpenLayers.Marker(
|
|
new OpenLayers.LonLat( ff_loc[key]['lon'], ff_loc[key]['lat'] )
|
|
.transform( new OpenLayers.Projection("EPSG:4326" ),map.getProjectionObject() ),
|
|
icon.clone()
|
|
) );
|
|
}
|
|
|
|
var zoom=12;
|
|
map.setCenter ( lonLat, zoom );
|
|
</script>
|
|
EOT;
|
|
}
|
|
return $outstr;
|
|
}
|
|
|
|
function output_ff_services( $citydata ) {
|
|
$outstr = '<ul>';
|
|
if ( isset( $citydata['services'] ) ) {
|
|
$services = $citydata['services'];
|
|
foreach ( $services as $service ) {
|
|
$outstr .= sprintf( '<li>%s (%s ): <a href="%s">%s</a></li>', $service['serviceName'], $service['serviceDescription'], $service['internalUri'], $service['internalUri'] );
|
|
}
|
|
}
|
|
$outstr .= '</ul>';
|
|
return $outstr;
|
|
}
|
|
|
|
function output_ff_contact( $citydata ) {
|
|
$outstr = '<p>';
|
|
$contact = $citydata['contact'];
|
|
// Output -- rather ugly but the data is not uniform, some fields are URIs, some are usernames, ...
|
|
if ( ! empty( $contact['email'] ) ) {
|
|
$outstr .= sprintf( "E-Mail: <a href=\"mailto:%s\">%s</a><br />\n", $contact['email'], $contact['email'] );
|
|
}
|
|
if ( ! empty( $contact['ml'] ) ) {
|
|
$outstr .= sprintf( "Mailingliste: <a href=\"mailto:%s\">%s</a><br />\n", $contact['ml'], $contact['ml'] );
|
|
}
|
|
if ( ! empty( $contact['irc'] ) ) {
|
|
$outstr .= sprintf( "IRC: <a href=\"%s\">%s</a><br />\n", $contact['irc'], $contact['irc'] );
|
|
}
|
|
if ( ! empty( $contact['twitter'] ) ) {
|
|
// catch username instead of URI
|
|
if ( $contact['twitter'][0] === '@' ) {
|
|
$twitter_url = 'http://twitter.com/' . ltrim( $contact['twitter'], '@' );
|
|
$twitter_handle = $contact['twitter'];
|
|
} else {
|
|
$twitter_url = $contact['twitter'];
|
|
$twitter_handle = '@' . substr( $contact['twitter'], strrpos( $contact['twitter'], '/' ) + 1 );
|
|
}
|
|
$outstr .= sprintf( "Twitter: <a href=\"%s\">%s</a><br />\n", $twitter_url, $twitter_handle );
|
|
}
|
|
if ( ! empty( $contact['facebook'] ) ) {
|
|
$outstr .= sprintf( "Facebook: <a href=\"%s\">%s</a><br />\n", $contact['facebook'], $contact['facebook'] );
|
|
}
|
|
if ( ! empty( $contact['googleplus'] ) ) {
|
|
$outstr .= sprintf( "G+: <a href=\"%s\">%s</a><br />\n", $contact['googleplus'], $contact['googleplus'] );
|
|
}
|
|
if ( ! empty( $contact['jabber'] ) ) {
|
|
$outstr .= sprintf( "XMPP: <a href=\"xmpp:%s\">%s</a><br />\n", $contact['jabber'], $contact['jabber'] );
|
|
}
|
|
$outstr .= '</p>';
|
|
return $outstr;
|
|
}
|
|
|
|
function output_ff_list() {
|
|
return 'here be some ff_list';
|
|
}
|
|
|
|
function shortcode_handler( $atts, $content, $shortcode ) {
|
|
// $atts[0] holds the city name, if given
|
|
if ( empty( $atts[0] ) ) {
|
|
$city = get_option( 'FF_meta_city', FF_META_DEFAULT_CITY );
|
|
} else {
|
|
$city = $atts[0];
|
|
}
|
|
|
|
if ( false === ( $cityurl = $this->dir->get_url_by_city( $city ) ) ) {
|
|
return "<!-- FF Meta Error: cannot get directory.json, or no URL for '$city' -->\n";
|
|
}
|
|
|
|
if ( false === ( $metadata = FF_Meta_Externaldata::get( $cityurl ) ) ) {
|
|
return "<!-- FF Meta Error: cannot get metadata from $cityurl -->\n";
|
|
}
|
|
|
|
$outstr = "<div class=\"ff $shortcode\">";
|
|
switch ( $shortcode ) {
|
|
case 'ff_state':
|
|
$outstr .= $this->output_ff_state( $metadata );
|
|
break;
|
|
case 'ff_location':
|
|
$outstr .= $this->output_ff_location( $metadata );
|
|
break;
|
|
case 'ff_services':
|
|
$outstr .= $this->output_ff_services( $metadata );
|
|
break;
|
|
case 'ff_contact':
|
|
$outstr .= $this->output_ff_contact( $metadata );
|
|
break;
|
|
case 'ff_list':
|
|
$outstr .= $this->output_ff_list();
|
|
break;
|
|
default:
|
|
$outstr .= '';
|
|
break;
|
|
}
|
|
$outstr .= '</div>';
|
|
return $outstr;
|
|
}
|
|
|
|
function admin_menu() {
|
|
// Options Page:
|
|
add_options_page(
|
|
'FF Meta Plugin', // page title
|
|
'FF Meta', // menu title
|
|
'manage_options', // req'd capability
|
|
'ff_meta_plugin', // menu slug
|
|
array( 'FF_meta', 'options_page' ) // callback function
|
|
);
|
|
}
|
|
|
|
function admin_init() {
|
|
register_setting(
|
|
'ff_meta_settings-group', // group name
|
|
'ff_meta_cachetime' // option name
|
|
);
|
|
register_setting(
|
|
'ff_meta_settings-group', // group name
|
|
'ff_meta_city' // option name
|
|
);
|
|
add_settings_section(
|
|
'ff_meta_section-one', // ID
|
|
'Section One', // Title
|
|
array( 'FF_Meta', 'section_one_callback' ), // callback to fill
|
|
'ff_meta_plugin' // page to display on
|
|
);
|
|
add_settings_field(
|
|
'ff_meta_city', // ID
|
|
'Default community', // Title
|
|
array( 'FF_Meta', 'city_callback' ), // callback to fill field
|
|
'ff_meta_plugin', // menu page=slug to display field on
|
|
'ff_meta_section-one', // section to display the field in
|
|
array( 'label_for' => 'ff_meta_city_id' ) // ID of input element
|
|
);
|
|
add_settings_field(
|
|
'ff_meta_cachetime', // ID
|
|
'Cache time', // Title
|
|
array( 'FF_Meta', 'cachetime_callback' ), // callback to fill field
|
|
'ff_meta_plugin', // menu page=slug to display field on
|
|
'ff_meta_section-one', // section to display the field in
|
|
array( 'label_for' => 'ff_meta_cachetime_id' ) // ID of input element
|
|
);
|
|
}
|
|
|
|
function section_one_callback() {
|
|
echo 'This Plugin provides shortcodes to display information from the Freifunk meta.json.';
|
|
}
|
|
|
|
function cachetime_callback() {
|
|
$time = get_option( 'ff_meta_cachetime', FF_META_DEFAULT_CACHETIME );
|
|
echo "<input type='number' name='ff_meta_cachetime' id='ff_meta_cachetime_id'"
|
|
." class='small-text code' value='". intval( $time ) . ' /> minutes'.
|
|
"<p class='description'>Data from external URLs is cached for this number of minutes.</p>";
|
|
}
|
|
|
|
function city_callback() {
|
|
if ( false === ( $directory = FF_Meta_Externaldata::get( FF_META_DEFAULT_DIR ) ) ) {
|
|
// TODO: error handling
|
|
return;
|
|
}
|
|
$default_city = get_option( 'ff_meta_city', FF_META_DEFAULT_CITY );
|
|
|
|
echo "<select name='ff_meta_city' id='ff_meta_city_id' size='1'>";
|
|
foreach ( array_keys( $directory ) as $city ) {
|
|
$prettycity = ucwords( str_replace( array( '_', '-' ), ' ', $city ) );
|
|
$selected = selected( $default_city, $city );
|
|
echo "<option value='" . esc attr( $city ) . "' $selected>"
|
|
. esc_html( $prettycity ) . '</option>';
|
|
}
|
|
echo '</select>';
|
|
echo "<p class='description'>This is the default city parameter.</p>";
|
|
}
|
|
|
|
function options_page() {
|
|
?>
|
|
<div class="wrap">
|
|
<h2>Freifunk Meta Plugin Options</h2>
|
|
<form action="options.php" method="POST">
|
|
<?php settings_fields( 'ff_meta_settings-group' ); ?>
|
|
<?php do_settings_sections( 'ff_meta_plugin' ); ?>
|
|
<?php submit_button(); ?>
|
|
</form>
|
|
</div>
|
|
<?php
|
|
}
|
|
|
|
function uninstall_hook() {
|
|
delete_option( 'ff_meta_city' );
|
|
delete_option( 'ff_meta_cachetime' );
|
|
}
|
|
}
|
|
|
|
$ffmeta = new FF_Meta;
|
|
$ffmeta->register_stuff();
|