<?php
	/*
		Copyright 2013  Jonay Pelluz  (email : jonaypelluz@gmail.com)

		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
	*/

	if (!function_exists('is_admin')) {
		header('Status: 403 Forbidden');
		header('HTTP/1.1 403 Forbidden');
		exit();
	}
	
	if(!class_exists("OneHundredCities_Options")){
		class OneHundredCities_Options {
			var $page = '';
			var $message = 0;
			var $data;
			
			function __construct() {
				add_action('admin_menu', array($this, 'init'));
				add_action('admin_head', array($this, 'admin_register_head'));
			}
			
			function check_rss_exists( $url ){
				$file_headers = @get_headers($url);
				if($file_headers[0] == 'HTTP/1.1 404 Not Found') {
					return false;
				} else {
					return true;
				}
			}
			
			function just_numbers($input) {
				$input = preg_replace("/[^0-9]/","", $input);
				if($input == '') $input = 0;
				return $input;
			}

			function admin_register_head() {
				wp_register_style( 'admin-100Cities.css', '/wp-content/plugins/' . basename(dirname(__FILE__)) . '/assets/admin-100Cities.css', null, '1.0', 'screen' );
				wp_enqueue_style( 'admin-100Cities.css' );
			}
			
			function init() {
				if (!current_user_can('update_plugins')){
					return;
				}
				$this->data = json_decode(get_option('one-hundred-cities-data'));
				$this->page = $page = add_options_page('100Cities', '100Cities', 'administrator', 'onehundredcities', array($this,'cities_page'));
			}
			
			function is_valid_url($url) {
				if($this->check_rss_exists($url)){
					return preg_match('|^http(s)?://[a-z0-9-]+(.[a-z0-9-]+)*(:[0-9]+)?(/.*)?$|i', $url);
				} else {
					return false;
				}
			}
			
			function cities_page() {
				if ( $_SERVER["REQUEST_METHOD"] == "POST" ){
					$div_array = array('float','block');
					$data['gmaps'] = $this->just_numbers($_POST['gmaps']);
					$data['wikipedia'] = $this->just_numbers($_POST['wikipedia']);
					$data['panoramio'] = $this->just_numbers($_POST['panoramio']);
					$data['articles'] = $this->just_numbers($_POST['articles']);
					$data['weather'] = $this->just_numbers($_POST['weather']);
					$data['css'] = $this->just_numbers($_POST['defaultcss']);
					
					//Check for weird javascript POST params, it doesn't go into the database so... the user has to know what it is writing in it
					if($data['css'] != 1){
						$new_css = preg_replace('/<script\b[^>]*>(.*?)<\/script>/is', '', str_replace('\\','', $_POST['css']));
						$css_url = dirname(__FILE__) . '/assets/100Cities.css';
						
						//rewrites css file
						$fp = fopen($css_url, 'w');
						fwrite($fp, $new_css);
						fclose($fp);
					}
					
					//Check it is a real feed
					$data['articles_feed'] = "";
					if($this->is_valid_url($_POST['articles_feed'])){
						$content = file_get_contents($_POST['articles_feed']);
						try { 
							$rss = new SimpleXmlElement($content);
							if(isset($rss->channel->item) && $rss->channel->item->count() > 0){
								$data['articles_feed'] = $_POST['articles_feed'];
							}
						} catch(Exception $e){
							
						}					
					}
					
					//Check the value is in array
					if(in_array($_POST['div'], $div_array)){
						$data['div'] = $_POST['div'];
					} else {
						$data['div'] = 'block';
					}
					$data['tags'] = $this->just_numbers($_POST['tags']);
					$data['categories'] = $this->just_numbers($_POST['categories']);
					$data['logo'] = $this->just_numbers($_POST['logo']);
					$data = json_encode($data);
					update_option('one-hundred-cities-data', $data);
					$this->data = json_decode(get_option('one-hundred-cities-data'));
					$updated = true;
				}
				?>
				<form class="cities-form" method="post" action="<?php echo $_SERVER['REQUEST_URI']; ?>">
					<h1 class="cities-header"><span id="icon-tools" class="icon32"></span><?php _e("100 Cities Admin Panel","onehundredcities"); ?></h1>
					<?php if(isset($updated)){ ?><div class="cities-alert"><?php _e("100 Cities data updated","onehundredcities"); ?></div><?php } ?>
					<fieldset class="cities-first-fieldset">
						<label class="cities-subheader"><?php echo _("Elements to show"); ?>:</label>
						<label><input type="checkbox" name="gmaps" value="1"<?php if($this->data->gmaps == 1){ ?> checked="checked"<?php } ?> /> <?php _e("Google map","onehundredcities"); ?></label> 
						<label><input type="checkbox" name="wikipedia" value="1"<?php if($this->data->wikipedia == 1){ ?> checked="checked"<?php } ?> /> <?php _e("Wikipedia description","onehundredcities"); ?></label>
						<label><input type="checkbox" name="panoramio" value="1"<?php if($this->data->panoramio == 1){ ?> checked="checked"<?php } ?> /> <?php _e("Panoramio photos","onehundredcities"); ?></label>							
						<label><input type="checkbox" name="articles" value="1"<?php if($this->data->articles == 1){ ?> checked="checked"<?php } ?> /> <?php _e("Related posts","onehundredcities"); ?></label>							
						<label><input type="checkbox" name="weather" value="1"<?php if($this->data->weather == 1){ ?> checked="checked"<?php } ?> /> <?php _e("Weather info","onehundredcities"); ?></label>
						<label>
							<?php _e("Related posts feed","onehundredcities"); ?><br />
							<input class="long_input" type="text" name="articles_feed" value="<?php if(!empty($this->data->articles_feed)){ echo $this->data->articles_feed; } ?>" />
						</label>
						<label>
							<?php _e("Div type","onehundredcities"); ?><br />
							<select name="div" class="normal_input">
								<option value="float"<?php if(!empty($this->data->div) && $this->data->div == 'float'){ echo " selected"; }?>>Float</option>
								<option value="block"<?php if(!empty($this->data->div) && $this->data->div == 'block'){ echo " selected"; }?>>Block</option>
							</select>
						</label>
					</fieldset>
					<fieldset class="cities-right-css">
						<label><input type="checkbox" name="defaultcss" value="1"<?php if($this->data->css == 1){ ?> checked="checked"<?php } ?> /> <?php _e("Use default CSS","onehundredcities"); ?></label>
						<?php _e("Edit CSS","onehundredcities"); ?><br />
						<textarea name="css"><?php echo trim(file_get_contents( WP_PLUGIN_URL . '/100-cities/assets/100Cities.css')); ?></textarea>
					</fieldset>
					<fieldset>
						<label class="cities-subheader">
							<?php _e("Show plugin","onehundredcities"); ?>:<br />
							<small><?php _e("Dinamic sidebars has to be actived for this to work","onehundredcities"); ?></small><br />
							<small><?php echo __("It needs","onehundredcities"); ?> <a target="_blank" href="http://codex.wordpress.org/Function_Reference/wp_meta">wp_meta</a> <?php _e("on the sidebar","onehundredcities"); ?></small>
						</label>
						<label><input type="checkbox" name="tags" value="1"<?php if($this->data->tags == 1){ ?> checked="checked"<?php } ?> /> <?php _e("Tag pages","onehundredcities"); ?></label>
						<?php /* ?><label><input type="checkbox" name="categories" value="1"<?php if($this->data->categories == 1){ ?> checked="checked"<?php } ?> /> <?php _e("Category pages","onehundredcities"); ?></label><?php */ ?>
					</fieldset>
					<fieldset>
						<label class="cities-subheader"> <?php _e("Add our logo","onehundredcities"); ?></label>
						<label><input type="checkbox" name="logo" value="1"<?php if($this->data->logo == 1){ ?> checked="checked"<?php } ?> /> <?php _e("Keep our link, Thanks!","onehundredcities"); ?></label>
					</fieldset>
					<input class="button-primary" type="submit" name="Save" value="<?php _e("Save Options","onehundredcities"); ?>" id="submitbutton" />
				</form>
				<?php
			}

		}
	}

//End of file