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<?php |
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class Trunk { |
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public $trunk_page_url, // the url of the cricket page for this trunk |
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$metatrunk_page_url, // the url of a page where the constituent links of this trunk can be found |
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$name, // friendly name of the trunk |
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$constituents = array(), // an array of links that compose the current link |
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$daily_image_url, // the url to the daily graph image |
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$weekly_image_url, // the url to the weekly graph image |
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$random_token, // a random token, to ensure images are fresh |
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$is_constituent; |
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|
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public function __construct($trunk_page_url, $metatrunk_page_url, $is_constituent = false){ |
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if($this->is_relative_url($trunk_page_url)){ |
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$this->trunk_page_url = $this->get_absolute_url() . $trunk_page_url; |
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} else { |
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$this->trunk_page_url = $trunk_page_url; |
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$this->get_cricket_images_from_url($trunk_page_url); |
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} |
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|
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$this->metatrunk_page_url = $metatrunk_page_url; |
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$this->random_token = rand(); |
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$this->is_constituent = $is_constituent; |
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if(!$this->is_constituent){ |
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$this->find_constituents(); |
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} |
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|
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$this->name = $this->name_from_url($trunk_page_url); |
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} |
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|
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public function to_html(){ |
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$html_string = '<h2><a href=' . $this->trunk_page_url . '">' . $this->name . '</a></h2><p>'; |
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if(!empty($this->constituents)){ |
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$html_string .= '<div class="constituents_div"><ul>'; |
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foreach($this->constituents as $index => $constituent){ |
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$html_string .= '<li><a href="' . $constituent->trunk_page_url . '" alt="' . $constituent->name . '"><b>' . $constituent->name . '</b></li>'; |
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} |
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$html_string .= '</ul></div>'; |
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} |
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if($this->daily_image_url){ |
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$html_string .= '<a href="' . $this->trunk_page_url . '" title="' . $this->name . '"><img alt="' . $this->name . '" src="' . $this->daily_image_url() . '"/></a><br/>'; |
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} |
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if($this->weekly_image_url){ |
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$html_string .= '<a href="' . $this->trunk_page_url . '" title="' . $this->name. '"><img alt="' . $this->name . '" src="' . $this->weekly_image_url() . '"/></a>'; |
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} |
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$html_string .= '</p>'; |
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return $html_string; |
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} |
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|
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public function daily_image_url(){ |
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return $this->daily_image_url . $this->random_token; |
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} |
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|
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public function weekly_image_url(){ |
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return $this->weekly_image_url . $this->random_token; |
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} |
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|
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/* returns the two key components from the url, separated by <-> delimiter */ |
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private function name_from_url($url){ |
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$name = ""; |
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$name_parts = split("%2F", CricketSpider::code_from_url($url)); |
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if(@$name_parts[1]){ |
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if($this->is_constituent){ |
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$name = $name_parts[1]; |
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} else { |
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$name = $name_parts[0] . " ↔ " . $name_parts[1]; |
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} |
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} else { |
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$url_parts = array(); |
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preg_match("/\/([^\/]+).html/", $url, $url_parts); |
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$name = $url_parts[1]; |
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} |
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return $name; |
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} |
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|
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private function find_constituents(){ |
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$constituent_urls = CricketSpider::get_urls_from_html_file($this->metatrunk_page_url); |
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foreach($constituent_urls[3] as $index => $url){ |
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$this->constituents[] = new Trunk($constituent_urls[3][$index], $constituent_urls[2][$index], true); |
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} |
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} |
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|
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private function is_relative_url($url){ |
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return !stristr($url, "http://"); |
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} |
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|
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/* will set the daily_image_url and weekly_image_url if the provided url points to a remote page */ |
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private function get_cricket_images_from_url($url){ |
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$cricket_images_url_cache = CricketSpider::$cache_dir . '/' . md5($url); |
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if(CricketSpider::probe_cache($cricket_images_url_cache)){ |
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$data = unserialize(file_get_contents($cricket_images_url_cache)); |
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} else { |
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$local_urls = array(); |
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$page = ""; |
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/* apparently cricket checks the UA string and tries to display GIFs to wget, which don't work for some reason */ |
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/* image links */ |
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$page = shell_exec("wget -O- --user-agent=Firefox " . escapeshellarg($url)); |
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preg_match_all('/<img src="(.*);rand=\d+".+/', $page, $local_urls); |
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/* $local_urls holds matched items, $local_urls[1] holds the matched part between ()s. |
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$local_urls[1][0] is the daily graph, $local_urls[1][1] is the weekly graph */ |
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/* new_url is an array of: |
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url to page |
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url to graph image |
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name of the graph |
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*/ |
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$data = array("http://www.dutchgrid.nl/ndpf/cricket/" . $local_urls[1][0] . ";rand=", "http://www.dutchgrid.nl/ndpf/cricket/" . $local_urls[1][1] . ";rand="); |
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file_put_contents($cricket_images_url_cache, serialize($data)); |
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} |
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$this->daily_image_url = $data[0]; |
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$this->weekly_image_url = $data[1]; |
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} |
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|
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private function get_absolute_url(){ |
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$full_url = 'http'; |
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$script_name = ''; |
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if(isset($_SERVER['REQUEST_URI'])) { |
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$script_name = $_SERVER['REQUEST_URI']; |
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} else { |
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$script_name = $_SERVER['PHP_SELF']; |
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if($_SERVER['QUERY_STRING']>' ') { |
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$script_name .= '?'.$_SERVER['QUERY_STRING']; |
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} |
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} |
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|
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/* strip index.php from script name */ |
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|
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if(isset($_SERVER['HTTPS']) && $_SERVER['HTTPS']=='on') { |
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$full_url .= 's'; |
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} |
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$full_url .= '://'; |
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if($_SERVER['SERVER_PORT']!='80') { |
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$full_url .= |
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$_SERVER['HTTP_HOST'].':'.$_SERVER['SERVER_PORT'].$script_name; |
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} else { |
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$full_url .= $_SERVER['HTTP_HOST'].$script_name; |
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} |
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|
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/* strip trailing slash */ |
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return $full_url; |
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} |
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|
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|
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//function make_html_snippets($data, $token){ |
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//$html_string = '<h2>Combined trunk</h2><p><ul id="dock-container">'; |
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//foreach($data as $index => $trunk_data){ |
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//$html_string .= '<li><a href="' . $trunk_data[0] . '" title ="' . $trunk_data[3] . '"><img alt="' . $trunk_data[3] . '" src="' . $trunk_data[1] . '" class="thumbnail"/></a></li>'; |
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//} |
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//$html_string .= '</p></ul>'; |
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//return $html_string; |
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//} |
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|
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} |
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?> |
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