view php/get_filtered_count.php @ 2376:c41caaa96633

Some fixes for #90. Also a failsafe loop if the server never responds with meaningul information from saves (for instance, running only on apache or basic http servers). More changes to pythonServer for python 3.5. Please check if still valid on 2.7

<?php
//http://stackoverflow.com/questions/4444475/transfrom-relative-path-into-absolute-url-using-php
include "rel2abs.php";

/*
    This looks for files that pass the filtering response
    The filtering system uses key-value pairs
    The key is double encoded using a '-'. The first part is the ID of the item to filter,
    the second is the method:
        min - Minimum Inclusive
        max - Maximum Inclusive
        exclude-# - exclude, followed by a number to uniquely add, (will create a triple [], ignore the third as random)
*/
$keys = array();
$waet_url = null;
foreach ($_GET as $key => $value) {
    $key = explode("-",$key);
    if ($key[0] == "url") {
        $waet_url = $value;
    } else {
        $v_pair = array($key[1],$value);
        if(array_key_exists($key[0],$keys)) {
            // We have some data
            array_push($keys[$key[0]],$v_pair);
        } else {
            // Create new key data
            $keys[$key[0]] = array($v_pair);
        }
    }
}

$files = array();
$saves = glob("../saves/*.xml");
if (is_array($saves))
{
    foreach($saves as $filename) {
        $xml_string = file_get_contents($filename, FILE_TEXT);
        $xml_object = simplexml_load_string($xml_string);
        if ($xml_object) {
            // First we must check the URLs match
            $waet = $xml_object->waet[0];
            if (urldecode($waet["url"])==$waet_url) {
                // It is part of the dataset, so now perform checks
                $continue = true;
                foreach($keys as $keyId => $keyArr) {
                    $elem = $xml_object->xpath("//*[@ref='".$keyId."']");
                    $elem = $elem[0]; // Can only be one.
                    switch ($elem["type"]) {
                        case "number":
                            // Number, we must check for min/max
                            $value =  (real)$elem->response;
                            foreach ($keyArr as $keyCheck) {
                                if ($keyCheck[0] == 'min' && $value < $keyCheck[1]) {
                                    $continue = false;
                                    break;
                                } else if ($keyCheck[0] == 'max' && $value > $keyCheck[1]) {
                                    $continue = false;
                                    break;
                                }
                            }
                            break;
                        case "checkbox":
                            // Will have an array of <response>
                            foreach ($elem->response as $response) {
                                foreach ($keyArr as $keyCheck) {
                                    if ($response["name"] == $keyCheck[1]) {
                                        if($response["checked"] == "true" && $keyCheck[0] == "exclude") {
                                            $continue = false;
                                            break;
                                        }
                                    }
                                }
                                if($continue == false) {
                                    break;
                                }
                            }
                            break;
                        case "radio":
                            foreach ($keyArr as $keyCheck) {
                                if ($keyCheck[0] == "exclude" && $elem->response["name"] == $keyCheck[1]) {

                                    $continue = false;
                                    break;
                                }
                            }
                            break;
                        default:
                            break;
                    }
                    if ($continue == false) {
                        break;
                    }
                }
                if ($continue) {
                    array_push($files,rel2abs($filename,"http://".$_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI']));
                }
            }
        }
    }
}
if (count($files) == 0) {
    echo '{"urls": []}';
} else {
    echo '{"urls": ["'.implode('","',$files).'"]}';
}

?>