n@650: <?php
n@650: //http://stackoverflow.com/questions/4444475/transfrom-relative-path-into-absolute-url-using-php
n@650: function rel2abs($rel, $base)
n@650: {
n@650:     /* return if already absolute URL */
n@650:     if (parse_url($rel, PHP_URL_SCHEME) != '' || substr($rel, 0, 2) == '//') return $rel;
n@650: 
n@650:     /* queries and anchors */
n@650:     if ($rel[0]=='#' || $rel[0]=='?') return $base.$rel;
n@650: 
n@650:     /* parse base URL and convert to local variables:
n@650:      $scheme, $host, $path */
n@650:     extract(parse_url($base));
n@650: 
n@650:     /* remove non-directory element from path */
n@650:     $path = preg_replace('#/[^/]*$#', '', $path);
n@650: 
n@650:     /* destroy path if relative url points to root */
n@650:     if ($rel[0] == '/') $path = '';
n@650: 
n@650:     /* dirty absolute URL */
n@650:     $abs = "$host$path/$rel";
n@650: 
n@650:     /* replace '//' or '/./' or '/foo/../' with '/' */
n@650:     $re = array('#(/\.?/)#', '#/(?!\.\.)[^/]+/\.\./#');
n@650:     for($n=1; $n>0; $abs=preg_replace($re, '/', $abs, -1, $n)) {}
n@650: 
n@650:     /* absolute URL is ready! */
n@650:     return $scheme.'://'.$abs;
n@650: }
n@650: 
n@650: /*
n@650:     This looks for files that pass the filtering response
n@650:     The filtering system uses key-value pairs
n@650:     The key is double encoded using a '-'. The first part is the ID of the item to filter,
n@650:     the second is the method:
n@650:         min - Minimum Inclusive
n@650:         max - Maximum Inclusive
n@650:         exclude-# - exclude, followed by a number to uniquely add, (will create a triple [], ignore the third as random)
n@650: */
n@650: $keys = [];
n@650: $waet_url = null;
n@650: foreach ($_GET as $key => $value) {
n@650:     $key = explode("-",$key);
n@650:     if ($key[0] == "url") {
n@650:         $waet_url = $value;
n@650:     } else {
n@650:         $v_pair = [$key[1],$value];
n@650:         if(array_key_exists($key[0],$keys)) {
n@650:             // We have some data
n@650:             array_push($keys[$key[0]],$v_pair);
n@650:         } else {
n@650:             // Create new key data
n@650:             $keys[$key[0]] = [$v_pair];
n@650:         }
n@650:     }
n@650: }
n@650: 
n@650: $files = [];
n@650: $saves = glob("../saves/*.xml");
n@650: if (is_array($saves))
n@650: {
n@650:     foreach($saves as $filename) {
n@650:         $xml_string = file_get_contents($filename, FILE_TEXT);
n@650:         $xml_object = simplexml_load_string($xml_string);
n@650:         if ($xml_object) {
n@650:             // First we must check the URLs match
n@650:             $waet = $xml_object->waet[0];
n@650:             if (urldecode($waet["url"])==$waet_url) {
n@650:                 // It is part of the dataset, so now perform checks
n@650:                 $continue = true;
n@650:                 foreach($keys as $keyId => $keyArr) {
n@650:                     $elem = $xml_object->xpath("//*[@ref='".$keyId."']");
n@650:                     $elem = $elem[0]; // Can only be one.
n@650:                     switch ($elem["type"]) {
n@650:                         case "number":
n@650:                             // Number, we must check for min/max
n@650:                             $value =  (real)$elem->response;
n@650:                             foreach ($keyArr as $keyCheck) {
n@650:                                 if ($keyCheck[0] == 'min' && $value < $keyCheck[1]) {
n@650:                                     $continue = false;
n@650:                                     break;
n@650:                                 } else if ($keyCheck[0] == 'max' && $value > $keyCheck[1]) {
n@650:                                     $continue = false;
n@650:                                     break;
n@650:                                 }
n@650:                             }
n@650:                             break;
n@650:                         case "checkbox":
n@650:                             // Will have an array of <response>
n@650:                             foreach ($elem->response as $response) {
n@650:                                 foreach ($keyArr as $keyCheck) {
n@650:                                     if ($response["name"] == $keyCheck[1]) {
n@650:                                         if($response["checked"] == "true" && $keyCheck[0] == "exclude") {
n@650:                                             $continue = false;
n@650:                                             break;
n@650:                                         }
n@650:                                     }
n@650:                                 }
n@650:                                 if($continue == false) {
n@650:                                     break;
n@650:                                 }
n@650:                             }
n@650:                             break;
n@650:                         case "radio":
n@650:                             foreach ($keyArr as $keyCheck) {
n@650:                                 if ($keyCheck[0] == "exclude" && $elem->response["name"] == $keyCheck[1]) {
n@650: 
n@650:                                     $continue = false;
n@650:                                     break;
n@650:                                 }
n@650:                             }
n@650:                             break;
n@650:                         default:
n@650:                             break;
n@650:                     }
n@650:                     if ($continue == false) {
n@650:                         break;
n@650:                     }
n@650:                 }
n@650:                 if ($continue) {
n@650:                     array_push($files,rel2abs($filename,"http://".$_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI']));
n@650:                 }
n@650:             }
n@650:         }
n@650:     }
n@650: }
n@650: if (count($files) == 0) {
n@650:     echo '{"urls": []}';
n@650: } else {
n@650:     echo '{"urls": ["'.implode('","',$files).'"]}';
n@650: }
n@650: 
n@650: ?>