/[pdpsoft]/trunk/nl.nikhef.ndpf.tools/network-stats-mashup/includes/class.trunk.php
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Revision 1277 - (show annotations) (download) (as text)
Fri Dec 11 17:00:25 2009 UTC (12 years, 9 months ago) by aramv
File MIME type: text/x-php
File size: 5692 byte(s)
Rewrote to be more OO
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 $random_token; // a random token, to ensure images are fresh
10
11 public function __construct($trunk_page_url, $metatrunk_page_url, $is_constituent = false){
12 if($this->is_relative_url($trunk_page_url)){
13 $this->trunk_page_url = $this->get_absolute_url() . $trunk_page_url;
14 } else {
15 $this->trunk_page_url = $trunk_page_url;
16 $this->get_cricket_images_from_url($trunk_page_url);
17 }
18 $this->metatrunk_page_url = $metatrunk_page_url;
19 $this->random_token = rand();
20 $this->name = $this->name_from_url($trunk_page_url);
21 if(!$is_constituent){
22 $this->find_constituents();
23 }
24 }
25
26 public function to_html(){
27 $html_string = '<h2><a href=' . $this->trunk_page_url . '">' . $this->name . '</a></h2><p>';
28 if($this->daily_image_url){
29 $html_string .= '<a href="' . $this->trunk_page_url . '" title="' . $this->name . '"><img alt="' . $this->name . '" src="' . $this->daily_image_url() . '"/></a><br/>';
30 }
31 if($this->weekly_image_url){
32 $html_string .= '<a href="' . $this->trunk_page_url . '" title="' . $this->name. '"><img alt="' . $this->name . '" src="' . $this->weekly_image_url() . '"/></a>';
33 }
34 if(!empty($this->constituents)){
35 $html_string .= '<div class="constituents_div"><ul>';
36 foreach($this->constituents as $index => $constituent){
37 $html_string .= '<li><a href="' . $constituent->trunk_page_url . '" alt="' . $constituent->name . '"><b>' . $constituent->name . '</b></li>';
38 }
39 $html_string .= '</ul></div>';
40 }
41 $html_string .= '</p>';
42 return $html_string;
43 }
44
45 public function daily_image_url(){
46 return $this->daily_image_url . $this->random_token;
47 }
48
49 public function weekly_image_url(){
50 return $this->weekly_image_url . $this->random_token;
51 }
52
53 /* returns the two key components from the url, separated by <-> delimiter */
54 private function name_from_url($url){
55 $name_parts = split("%2F", CricketSpider::code_from_url($url));
56 if(@$name_parts[1]){
57 return $name_parts[0] . " &harr; " . $name_parts[1];
58 } else {
59 return $url;
60 }
61 }
62
63 private function find_constituents(){
64 $constituent_urls = array();
65 if($this->metatrunk_page_url){
66 $constituent_urls = CricketSpider::get_urls_from_html_file($this->metatrunk_page_url);
67 foreach($constituent_urls[3] as $index => $url){
68 $this->constituents[] = new Trunk($constituent_urls[3][$index], $constituent_urls[2][$index], true);
69 }
70 }
71 }
72
73 private function is_relative_url($url){
74 return !stristr($url, "http://");
75 }
76
77 /* will set the daily_image_url and weekly_image_url if the provided url points to a remote page */
78 private function get_cricket_images_from_url($url){
79 $cricket_images_url_cache = CricketSpider::$cache_dir . '/' . md5($url);
80 if(CricketSpider::probe_cache($cricket_images_url_cache)){
81 $data = unserialize(file_get_contents($cricket_images_url_cache));
82 } else {
83 $local_urls = array();
84 $page = "";
85 /* apparently cricket checks the UA string and tries to display GIFs to wget, which don't work for some reason */
86 /* image links */
87 $page = shell_exec("wget -O- --user-agent=Firefox " . escapeshellarg($url));
88 preg_match_all('/<img src="(.*);rand=\d+".+/', $page, $local_urls);
89 /* $local_urls holds matched items, $local_urls[1] holds the matched part between ()s.
90 $local_urls[1][0] is the daily graph, $local_urls[1][1] is the weekly graph */
91 /* new_url is an array of:
92 url to page
93 url to graph image
94 name of the graph
95 */
96 $data = array("http://www.dutchgrid.nl/ndpf/cricket/" . $local_urls[1][0] . ";rand=", "http://www.dutchgrid.nl/ndpf/cricket/" . $local_urls[1][1] . ";rand=");
97 file_put_contents($cricket_images_url_cache, serialize($data));
98 }
99 $this->daily_image_url = $data[0];
100 $this->weekly_image_url = $data[1];
101 }
102
103 private function get_absolute_url(){
104 $full_url = 'http';
105 $script_name = '';
106 if(isset($_SERVER['REQUEST_URI'])) {
107 $script_name = $_SERVER['REQUEST_URI'];
108 } else {
109 $script_name = $_SERVER['PHP_SELF'];
110 if($_SERVER['QUERY_STRING']>' ') {
111 $script_name .= '?'.$_SERVER['QUERY_STRING'];
112 }
113 }
114
115 /* strip index.php from script name */
116
117 if(isset($_SERVER['HTTPS']) && $_SERVER['HTTPS']=='on') {
118 $full_url .= 's';
119 }
120 $full_url .= '://';
121 if($_SERVER['SERVER_PORT']!='80') {
122 $full_url .=
123 $_SERVER['HTTP_HOST'].':'.$_SERVER['SERVER_PORT'].$script_name;
124 } else {
125 $full_url .= $_SERVER['HTTP_HOST'].$script_name;
126 }
127
128 /* strip trailing slash */
129 return $full_url;
130 }
131
132
133 //function make_html_snippets($data, $token){
134 //$html_string = '<h2>Combined trunk</h2><p><ul id="dock-container">';
135 //foreach($data as $index => $trunk_data){
136 //$html_string .= '<li><a href="' . $trunk_data[0] . '" title ="' . $trunk_data[3] . '"><img alt="' . $trunk_data[3] . '" src="' . $trunk_data[1] . '" class="thumbnail"/></a></li>';
137 //}
138 //$html_string .= '</p></ul>';
139 //return $html_string;
140 //}
141
142 }
143 ?>
144

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