/[pdpsoft]/trunk/nl.nikhef.ndpf.tools/network-stats-mashup/includes/class.trunk.php
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Revision 1657 - (show annotations) (download) (as text)
Thu Apr 29 16:00:54 2010 UTC (12 years, 5 months ago) by aramv
File MIME type: text/x-php
File size: 6080 byte(s)
Added feature to navigate constituents of trunks.
1 <?php
2 class Trunk {
3 public $trunk_page_url, // the url of the cricket page for this trunk
4 $metatrunk_page_url, // the url of a page where the constituent links of this trunk can be found
5 $name, // friendly name of the trunk
6 $constituents = array(), // an array of links that compose the current link
7 $daily_image_url, // the url to the daily graph image
8 $weekly_image_url, // the url to the weekly graph image
9 $random_token, // a random token, to ensure images are fresh
10 $is_constituent;
11
12 public function __construct($trunk_page_url, $metatrunk_page_url, $is_constituent = false){
13 if($this->is_relative_url($trunk_page_url)){
14 $this->trunk_page_url = $this->get_absolute_url() . $trunk_page_url;
15 } else {
16 $this->trunk_page_url = $trunk_page_url;
17 $this->get_cricket_images_from_url($trunk_page_url);
18 }
19
20 $this->metatrunk_page_url = $metatrunk_page_url;
21 $this->random_token = rand();
22 $this->is_constituent = $is_constituent;
23 if(!$this->is_constituent){
24 $this->find_constituents();
25 }
26
27 $this->name = $this->name_from_url($trunk_page_url);
28 }
29
30 public function to_html(){
31 $html_string = '<h2><a href=' . $this->trunk_page_url . '">' . $this->name . '</a></h2>';
32 if(!empty($this->constituents)){
33 $html_string .= '<div id="constituents_div"><ul>';
34 foreach($this->constituents as $index => $constituent){
35 $html_string .= '<li><a href="' . $constituent->trunk_page_url . '" alt="' . $constituent->name . '" onmouseover="switch_graphs(this.href)"><b>' . $constituent->name . '</b></li>';
36 }
37 $html_string .= '</ul></div>';
38 }
39 $html_string .= '<div id="graph_div"><p>';
40 if($this->daily_image_url){
41 $html_string .= '<a id="daily_graph_a" href="' . $this->trunk_page_url . '" title="' . $this->name . '"><img id="daily_graph_i" alt="' . $this->name . '" src="' . $this->daily_image_url() . '"/></a><br/>';
42 }
43 if($this->weekly_image_url){
44 $html_string .= '<a id="weekly_graph_a" href="' . $this->trunk_page_url . '" title="' . $this->name. '"><img id="weekly_graph_i" alt="' . $this->name . '" src="' . $this->weekly_image_url() . '"/></a>';
45 }
46 $html_string .= '</p></div>';
47 return $html_string;
48 }
49
50 public function daily_image_url(){
51 return $this->daily_image_url . $this->random_token;
52 }
53
54 public function weekly_image_url(){
55 return $this->weekly_image_url . $this->random_token;
56 }
57
58 /* returns the two key components from the url, separated by <-> delimiter */
59 private function name_from_url($url){
60 $name = "";
61 $name_parts = split("%2F", CricketSpider::code_from_url($url));
62 if(@$name_parts[1]){
63 if($this->is_constituent){
64 $name = $name_parts[1];
65 } else {
66 $name = $name_parts[0] . " &harr; " . $name_parts[1];
67 }
68 } else {
69 $url_parts = array();
70 preg_match("/\/([^\/]+).html/", $url, $url_parts);
71 $name = $url_parts[1];
72 }
73 return $name;
74 }
75
76 private function find_constituents(){
77 $constituent_urls = CricketSpider::get_urls_from_html_file($this->metatrunk_page_url);
78 foreach($constituent_urls[3] as $index => $url){
79 $this->constituents[] = new Trunk($constituent_urls[3][$index], $constituent_urls[2][$index], true);
80 }
81 }
82
83 private function is_relative_url($url){
84 return !stristr($url, "http://");
85 }
86
87 /* will set the daily_image_url and weekly_image_url if the provided url points to a remote page */
88 private function get_cricket_images_from_url($url){
89 $cricket_images_url_cache = CricketSpider::$cache_dir . '/' . md5($url);
90 if(CricketSpider::probe_cache($cricket_images_url_cache)){
91 $data = unserialize(file_get_contents($cricket_images_url_cache));
92 } else {
93 $local_urls = array();
94 $page = "";
95 /* apparently cricket checks the UA string and tries to display GIFs to wget, which don't work for some reason */
96 /* image links */
97 $page = shell_exec("wget -O- --user-agent=Firefox " . escapeshellarg($url));
98 preg_match_all('/<img src="(.*);rand=\d*".+/', $page, $local_urls);
99 /* $local_urls holds matched items, $local_urls[1] holds the matched part between ()s.
100 $local_urls[1][0] is the daily graph, $local_urls[1][1] is the weekly graph */
101 /* new_url is an array of:
102 url to page
103 url to graph image
104 name of the graph
105 */
106 $data = array("http://www.dutchgrid.nl/ndpf/cricket/" . $local_urls[1][0] . ";rand=", "http://www.dutchgrid.nl/ndpf/cricket/" . $local_urls[1][1] . ";rand=");
107 file_put_contents($cricket_images_url_cache, serialize($data));
108 }
109 $this->daily_image_url = $data[0];
110 $this->weekly_image_url = $data[1];
111 }
112
113 private function get_absolute_url(){
114 $full_url = 'http';
115 $script_name = '';
116 if(isset($_SERVER['REQUEST_URI'])) {
117 $script_name = $_SERVER['REQUEST_URI'];
118 } else {
119 $script_name = $_SERVER['PHP_SELF'];
120 if($_SERVER['QUERY_STRING']>' ') {
121 $script_name .= '?'.$_SERVER['QUERY_STRING'];
122 }
123 }
124
125 /* strip index.php from script name */
126
127 if(isset($_SERVER['HTTPS']) && $_SERVER['HTTPS']=='on') {
128 $full_url .= 's';
129 }
130 $full_url .= '://';
131 if($_SERVER['SERVER_PORT']!='80') {
132 $full_url .=
133 $_SERVER['HTTP_HOST'].':'.$_SERVER['SERVER_PORT'].$script_name;
134 } else {
135 $full_url .= $_SERVER['HTTP_HOST'].$script_name;
136 }
137
138 /* strip trailing slash */
139 return $full_url;
140 }
141
142
143 //function make_html_snippets($data, $token){
144 //$html_string = '<h2>Combined trunk</h2><p><ul id="dock-container">';
145 //foreach($data as $index => $trunk_data){
146 //$html_string .= '<li><a href="' . $trunk_data[0] . '" title ="' . $trunk_data[3] . '"><img alt="' . $trunk_data[3] . '" src="' . $trunk_data[1] . '" class="thumbnail"/></a></li>';
147 //}
148 //$html_string .= '</p></ul>';
149 //return $html_string;
150 //}
151
152 }
153 ?>
154

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