/
ARC2_StoreEndpoint.php
executable file
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/
ARC2_StoreEndpoint.php
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<?php
/**
* ARC2 SPARQL Endpoint.
*
* @author Benjamin Nowack
* @license W3C Software License and GPL
* @homepage <https://github.com/semsol/arc2>
*
* @version 2010-11-16
*/
ARC2::inc('Store');
class ARC2_StoreEndpoint extends ARC2_Store
{
public function __construct($a, &$caller)
{
parent::__construct($a, $caller);
}
public function __init()
{
parent::__init();
$this->headers = ['http' => 'HTTP/1.1 200 OK', 'vary' => 'Vary: Accept'];
$this->read_key = $this->v('endpoint_read_key', '', $this->a);
$this->write_key = $this->v('endpoint_write_key', '', $this->a);
$this->timeout = $this->v('endpoint_timeout', 0, $this->a);
$this->a['store_allow_extension_functions'] = $this->v('store_allow_extension_functions', 0, $this->a);
$this->allow_sql = $this->v('endpoint_enable_sql_output', 0, $this->a);
$this->result = '';
}
public function getQueryString($mthd = '')
{
$r = '';
if (!$mthd || ('post' == $mthd)) {
$r = file_get_contents('php://input');
}
$r = !$r ? $this->v1('QUERY_STRING', '', $_SERVER) : $r;
return $r;
}
public function p($name = '', $mthd = '', $multi = '', $default = '')
{
$mthd = strtolower($mthd);
if ($multi) {
$qs = $this->getQueryString($mthd);
if (preg_match_all('/\&'.$name.'=([^\&]+)/', $qs, $m)) {
foreach ($m[1] as $i => $val) {
$m[1][$i] = stripslashes($val);
}
return $m[1];
}
return $default ? $default : [];
}
$args = array_merge($_GET, $_POST);
$r = isset($args[$name]) ? $args[$name] : $default;
return is_array($r) ? $r : stripslashes($r);
}
public function getFeatures()
{
return $this->v1('endpoint_features', [], $this->a);
}
public function setHeader($k, $v)
{
$this->headers[$k] = $v;
}
public function sendHeaders()
{
if (!isset($this->is_dump) || !$this->is_dump) {
$this->setHeader('content-length', 'Content-Length: '.strlen($this->getResult()));
foreach ($this->headers as $k => $v) {
header($v);
}
}
}
public function getResult()
{
return $this->result;
}
public function handleRequest($auto_setup = 0)
{
if (!$this->isSetUp()) {
if ($auto_setup) {
$this->setUp();
return $this->handleRequest(0);
} else {
$this->setHeader('http', 'HTTP/1.1 400 Bad Request');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Missing configuration or the endpoint store was not set up yet.';
}
} elseif (($img = $this->p('img'))) {
$this->handleImgRequest($img);
} elseif (($q = $this->p('query'))) {
$this->checkProcesses();
$this->handleQueryRequest($q);
if ($this->p('show_inline')) {
$this->query_result = '
<div class="results">
'.('htmltab' != $this->p('output') ? '<pre>'.htmlspecialchars($this->getResult()).'</pre>' : $this->getResult()).'
</div>
';
$this->handleEmptyRequest(1);
}
} else {
$this->handleEmptyRequest();
}
}
public function go($auto_setup = 0)
{
$this->handleRequest($auto_setup);
$this->sendHeaders();
echo $this->getResult();
}
public function handleImgRequest($img)
{
$this->setHeader('content-type', 'Content-type: image/gif');
$imgs = [
'bg_body' => base64_decode('R0lGODlhAQBkAMQAAPf39/Hx8erq6vPz8/Ly8u/v7+np6fT09Ovr6/b29u3t7ejo6Pz8/Pv7+/39/fr6+vj4+P7+/vn5+f///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAAAAAAALAAAAAABAGQAAAUp4GIIiFIExHAkAAC9cAxJdG3TT67vTe//jKBQ6Cgaj5GkcpmcOJ/QZwgAOw=='),
];
$this->result = isset($imgs[$img]) ? $imgs[$img] : '';
$this->sendHeaders();
echo $this->getResult();
exit;
}
public function handleEmptyRequest($force = 0)
{
/* service description */
$formats = [
'rdfxml' => 'RDFXML', 'rdf+xml' => 'RDFXML', 'html' => 'HTML',
];
if (!$force && 'HTML' != $this->getResultFormat($formats, 'html')) {
$this->handleServiceDescriptionRequest();
} else {
$this->setHeader('content-type', 'Content-type: text/html; charset=utf-8');
$this->result = $this->getHTMLFormDoc();
}
}
public function handleServiceDescriptionRequest()
{
$q = '
PREFIX void: <http://rdfs.org/ns/void#>
CONSTRUCT {
<> void:sparqlEndpoint <> .
}
WHERE {
?s ?p ?o .
} LIMIT 1
';
$this->handleQueryRequest($q);
}
public function checkProcesses()
{
if (method_exists($this->caller, 'checkSPARQLEndpointProcesses')) {
$sub_r = $this->caller->checkSPARQLEndpointProcesses();
} elseif ($this->timeout) {
$this->killDBProcesses('', $this->timeout);
}
}
public function handleQueryRequest($q)
{
if (preg_match('/^dump/i', $q)) {
$infos = ['query' => ['type' => 'dump']];
$this->is_dump = 1;
} else {
ARC2::inc('SPARQLPlusParser');
$p = new ARC2_SPARQLPlusParser($this->a, $this);
$p->parse($q);
$infos = $p->getQueryInfos();
}
/* errors? */
if ($errors = $this->getErrors()) {
$this->setHeader('http', 'HTTP/1.1 400 Bad Request');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = htmlspecialchars(implode("\n", $errors));
return true;
}
$qt = $infos['query']['type'];
/* wrong read key? */
if ($this->read_key && ($this->p('key') != $this->read_key) && preg_match('/^(select|ask|construct|describe|dump)$/', $qt)) {
$this->setHeader('http', 'HTTP/1.1 401 Access denied');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Access denied. Missing or wrong "key" parameter.';
return true;
}
/* wrong write key? */
if ($this->write_key && ($this->p('key') != $this->write_key) && preg_match('/^(load|insert|delete|update)$/', $qt)) {
$this->setHeader('http', 'HTTP/1.1 401 Access denied');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Access denied. Missing or wrong "key" parameter.';
return true;
}
/* non-allowed query type? */
if (!in_array($qt, $this->getFeatures())) {
$this->setHeader('http', 'HTTP/1.1 401 Access denied');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Access denied for "'.$qt.'" query';
return true;
}
/* load/insert/delete via GET */
if (in_array($qt, ['load', 'insert', 'delete']) && isset($_GET['query'])) {
$this->setHeader('http', 'HTTP/1.1 501 Not Implemented');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Query type "'.$qt.'" not supported via GET';
return true;
}
/* unsupported query type */
if (!in_array($qt, ['select', 'ask', 'describe', 'construct', 'load', 'insert', 'delete', 'dump'])) {
$this->setHeader('http', 'HTTP/1.1 501 Not Implemented');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Unsupported query type "'.$qt.'"';
return true;
}
/* adjust infos */
$infos = $this->adjustQueryInfos($infos);
$t1 = ARC2::mtime();
$r = ['result' => $this->runQuery($infos, $qt)];
$t2 = ARC2::mtime();
$r['query_time'] = $t2 - $t1;
/* query errors? */
if ($errors = $this->getErrors()) {
$this->setHeader('http', 'HTTP/1.1 400 Bad Request');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Error: '.implode("\n", $errors);
return true;
}
/* result */
$m = 'get'.ucfirst($qt).'ResultDoc';
if (method_exists($this, $m)) {
$this->result = $this->$m($r);
} else {
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Result serializer not available, dumping raw data:'."\n".print_r($r, 1);
}
}
public function adjustQueryInfos($infos)
{
/* limit */
if ($max_l = $this->v('endpoint_max_limit', 0, $this->a)) {
if ($this->v('limit', $max_l + 1, $infos['query']) > $max_l) {
$infos['query']['limit'] = $max_l;
}
}
/* default-graph-uri / named-graph-uri */
$dgs = $this->p('default-graph-uri', '', 1);
$ngs = $this->p('named-graph-uri', '', 1);
if (count(array_merge($dgs, $ngs))) {
$ds = [];
foreach ($dgs as $g) {
$ds[] = ['graph' => $this->calcURI($g), 'named' => 0];
}
foreach ($ngs as $g) {
$ds[] = ['graph' => $this->calcURI($g), 'named' => 1];
}
$infos['query']['dataset'] = $ds;
}
/* infos result format */
if (('infos' == $this->p('format')) || ('infos' == $this->p('output'))) {
$infos['result_format'] = 'structure';
}
/* sql result format */
if (('sql' == $this->p('format')) || ('sql' == $this->p('output'))) {
$infos['result_format'] = 'sql';
}
return $infos;
}
public function getResultFormat($formats, $default)
{
$prefs = [];
/* arg */
if (($v = $this->p('format')) || ($v = $this->p('output'))) {
$prefs[] = $v;
}
/* accept header */
$vals = explode(',', $_SERVER['HTTP_ACCEPT']);
if ($vals) {
$o_vals = [];
foreach ($vals as $val) {
if (preg_match('/(rdf\+n3|x\-turtle|rdf\+xml|sparql\-results\+xml|sparql\-results\+json|json)/', $val, $m)) {
$o_vals[$m[1]] = 1;
if (preg_match('/\;q\=([0-9\.]+)/', $val, $sub_m)) {
$o_vals[$m[1]] = 1 * $sub_m[1];
}
}
}
arsort($o_vals);
foreach ($o_vals as $val => $prio) {
$prefs[] = $val;
}
}
/* default */
$prefs[] = $default;
foreach ($prefs as $pref) {
if (isset($formats[$pref])) {
return $formats[$pref];
}
}
}
/* SELECT */
public function getSelectResultDoc($r)
{
$formats = [
'xml' => 'SPARQLXML', 'sparql-results+xml' => 'SPARQLXML',
'json' => 'SPARQLJSON', 'sparql-results+json' => 'SPARQLJSON',
'php_ser' => 'PHPSER', 'plain' => 'Plain',
'sql' => ($this->allow_sql ? 'Plain' : 'xSQL'),
'infos' => 'Plain',
'htmltab' => 'HTMLTable',
'tsv' => 'TSV',
];
if ($f = $this->getResultFormat($formats, 'xml')) {
$m = 'get'.$f.'SelectResultDoc';
return method_exists($this, $m) ? $this->$m($r) : 'not implemented';
}
return '';
}
public function getSPARQLXMLSelectResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: application/sparql-results+xml');
$vars = $r['result']['variables'];
$rows = $r['result']['rows'];
$dur = $r['query_time'];
$nl = "\n";
/* doc */
$r = ''.
'<?xml version="1.0"?>'.
$nl.'<sparql xmlns="http://www.w3.org/2005/sparql-results#">'.
'';
/* head */
$r .= $nl.' <head>';
$r .= $nl.' <!-- query time: '.round($dur, 4).' sec -->';
if (is_array($vars)) {
foreach ($vars as $var) {
$r .= $nl.' <variable name="'.$var.'"/>';
}
}
$r .= $nl.' </head>';
/* results */
$r .= $nl.' <results>';
if (is_array($rows)) {
foreach ($rows as $row) {
$r .= $nl.' <result>';
foreach ($vars as $var) {
if (isset($row[$var])) {
$r .= $nl.' <binding name="'.$var.'">';
if ('uri' == $row[$var.' type']) {
$r .= $nl.' <uri>'.htmlspecialchars($row[$var]).'</uri>';
} elseif ('bnode' == $row[$var.' type']) {
$r .= $nl.' <bnode>'.substr($row[$var], 2).'</bnode>';
} else {
$dt = isset($row[$var.' datatype']) ? ' datatype="'.htmlspecialchars($row[$var.' datatype']).'"' : '';
$lang = isset($row[$var.' lang']) ? ' xml:lang="'.htmlspecialchars($row[$var.' lang']).'"' : '';
$r .= $nl.' <literal'.$dt.$lang.'>'.htmlspecialchars($row[$var]).'</literal>';
}
$r .= $nl.' </binding>';
}
}
$r .= $nl.' </result>';
}
}
$r .= $nl.' </results>';
/* /doc */
$r .= $nl.'</sparql>';
return $r;
}
public function getSPARQLJSONSelectResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: application/sparql-results+json');
$vars = $r['result']['variables'];
$rows = $r['result']['rows'];
$dur = $r['query_time'];
$nl = "\n";
/* doc */
$r = '{';
/* head */
$r .= $nl.' "head": {';
$r .= $nl.' "vars": [';
$first_var = 1;
foreach ($vars as $var) {
$r .= $first_var ? $nl : ','.$nl;
$r .= ' "'.$var.'"';
$first_var = 0;
}
$r .= $nl.' ]';
$r .= $nl.' },';
/* results */
$r .= $nl.' "results": {';
$r .= $nl.' "bindings": [';
$first_row = 1;
foreach ($rows as $row) {
$r .= $first_row ? $nl : ','.$nl;
$r .= ' {';
$first_var = 1;
foreach ($vars as $var) {
if (isset($row[$var])) {
$r .= $first_var ? $nl : ','.$nl.$nl;
$r .= ' "'.$var.'": {';
if ('uri' == $row[$var.' type']) {
$r .= $nl.' "type": "uri",';
$r .= $nl.' "value": "'.$this->a['db_object']->escape($row[$var]).'"';
} elseif ('bnode' == $row[$var.' type']) {
$r .= $nl.' "type": "bnode",';
$r .= $nl.' "value": "'.substr($row[$var], 2).'"';
} else {
$dt = isset($row[$var.' datatype']) ? ','.$nl.' "datatype": "'.$this->a['db_object']->escape($row[$var.' datatype']).'"' : '';
$lang = isset($row[$var.' lang']) ? ','.$nl.' "xml:lang": "'.$this->a['db_object']->escape($row[$var.' lang']).'"' : '';
$type = $dt ? 'typed-literal' : 'literal';
$r .= $nl.' "type": "'.$type.'",';
$r .= $nl.' "value": "'.$this->jsonEscape($row[$var]).'"';
$r .= $dt.$lang;
}
$r .= $nl.' }';
$first_var = 0;
}
}
$r .= $nl.' }';
$first_row = 0;
}
$r .= $nl.' ]';
$r .= $nl.' }';
/* /doc */
$r .= $nl.'}';
if (($v = $this->p('jsonp')) || ($v = $this->p('callback'))) {
$r = $v.'('.$r.')';
}
return $r;
}
public function getPHPSERSelectResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: text/plain');
return serialize($r);
}
public function getPlainSelectResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: text/plain');
return print_r($r['result'], 1);
}
public function getHTMLTableSelectResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: text/html; charset=utf-8');
$vars = $r['result']['variables'];
$rows = $r['result']['rows'];
$dur = $r['query_time'];
if ($this->p('show_inline')) {
return '<table>'.$this->getHTMLTableRows($rows, $vars).'</table>';
}
return '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
'.$this->getHTMLDocHead().'
<body>
<table>
'.$this->getHTMLTableRows($rows, $vars).'
</table>
</body>
</html>
';
}
public function getHTMLTableRows($rows, $vars)
{
$r = '';
foreach ($rows as $row) {
$hr = '';
$rr = '';
foreach ($vars as $var) {
$hr .= $r ? '' : '<th>'.htmlspecialchars($var).'</th>';
$rr .= '<td>'.htmlspecialchars($row[$var]).'</td>';
}
$r .= $hr ? '<tr>'.$hr.'</tr>' : '';
$r .= '<tr>'.$rr.'</tr>';
}
return $r ? $r : '<em>No results found</em>';
}
public function getTSVSelectResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: text/plain; charset=utf-8');
$vars = $r['result']['variables'];
$rows = $r['result']['rows'];
$dur = $r['query_time'];
return $this->getTSVRows($rows, $vars);
}
public function getTSVRows($rows, $vars)
{
$r = '';
$delim = "\t";
$esc_delim = '\\t';
foreach ($rows as $row) {
$hr = '';
$rr = '';
foreach ($vars as $var) {
$hr .= $r ? '' : ($hr ? $delim.$var : $var);
$val = isset($row[$var]) ? str_replace($delim, $esc_delim, $row[$var]) : '';
$rr .= $rr ? $delim.$val : $val;
}
$r .= $hr."\n".$rr;
}
return $r ? $r : 'No results found';
}
/* ASK */
public function getAskResultDoc($r)
{
$formats = [
'xml' => 'SPARQLXML', 'sparql-results+xml' => 'SPARQLXML',
'json' => 'SPARQLJSON', 'sparql-results+json' => 'SPARQLJSON',
'plain' => 'Plain',
'php_ser' => 'PHPSER',
'sql' => ($this->allow_sql ? 'Plain' : 'xSQL'),
'infos' => 'Plain',
];
if ($f = $this->getResultFormat($formats, 'xml')) {
$m = 'get'.$f.'AskResultDoc';
return method_exists($this, $m) ? $this->$m($r) : 'not implemented';
}
return '';
}
public function getSPARQLXMLAskResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: application/sparql-results+xml');
$r_val = $r['result'] ? 'true' : 'false';
$dur = $r['query_time'];
$nl = "\n";
return ''.
'<?xml version="1.0"?>'.
$nl.'<sparql xmlns="http://www.w3.org/2005/sparql-results#">'.
$nl.' <head>'.
$nl.' <!-- query time: '.round($dur, 4).' sec -->'.
$nl.' </head>'.
$nl.' <boolean>'.$r_val.'</boolean>'.
$nl.'</sparql>'.
'';
}
public function getSPARQLJSONAskResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: application/sparql-results+json');
$r_val = $r['result'] ? 'true' : 'false';
$dur = $r['query_time'];
$nl = "\n";
$r = ''.
$nl.'{'.
$nl.' "head": {'.
$nl.' },'.
$nl.' "boolean" : '.$r_val.
$nl.'}'.
'';
if (($v = $this->p('jsonp')) || ($v = $this->p('callback'))) {
$r = $v.'('.$r.')';
}
return $r;
}
public function getPHPSERAskResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: text/plain');
return serialize($r);
}
public function getPlainAskResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: text/plain');
return $r['result'] ? 'true' : 'false';
}
/* CONSTRUCT */
public function getConstructResultDoc($r)
{
$formats = [
'rdfxml' => 'RDFXML', 'rdf+xml' => 'RDFXML',
'json' => 'RDFJSON', 'rdf+json' => 'RDFJSON',
'turtle' => 'Turtle', 'x-turtle' => 'Turtle', 'rdf+n3' => 'Turtle',
'php_ser' => 'PHPSER',
'sql' => ($this->allow_sql ? 'Plain' : 'xSQL'),
'infos' => 'Plain',
];
if ($f = $this->getResultFormat($formats, 'rdfxml')) {
$m = 'get'.$f.'ConstructResultDoc';
return method_exists($this, $m) ? $this->$m($r) : 'not implemented';
}
return '';
}
public function getRDFXMLConstructResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: application/rdf+xml');
$index = $r['result'];
$ser = ARC2::getRDFXMLSerializer($this->a);
$dur = $r['query_time'];
return $ser->getSerializedIndex($index)."\n".'<!-- query time: '.$dur.' -->';
}
public function getTurtleConstructResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: application/x-turtle');
$index = $r['result'];
$ser = ARC2::getTurtleSerializer($this->a);
$dur = $r['query_time'];
return '# query time: '.$dur."\n".$ser->getSerializedIndex($index);
}
public function getRDFJSONConstructResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: application/json');
$index = $r['result'];
$ser = ARC2::getRDFJSONSerializer($this->a);
$dur = $r['query_time'];
$r = $ser->getSerializedIndex($index);
if (($v = $this->p('jsonp')) || ($v = $this->p('callback'))) {
$r = $v.'('.$r.')';
}
return $r;
}
public function getPHPSERConstructResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: text/plain');
return serialize($r);
}
public function getPlainConstructResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: text/plain');
return print_r($r['result'], 1);
}
/* DESCRIBE */
public function getDescribeResultDoc($r)
{
$formats = [
'rdfxml' => 'RDFXML', 'rdf+xml' => 'RDFXML',
'json' => 'RDFJSON', 'rdf+json' => 'RDFJSON',
'turtle' => 'Turtle', 'x-turtle' => 'Turtle', 'rdf+n3' => 'Turtle',
'php_ser' => 'PHPSER',
'sql' => ($this->allow_sql ? 'Plain' : 'xSQL'),
'infos' => 'Plain',
];
if ($f = $this->getResultFormat($formats, 'rdfxml')) {
$m = 'get'.$f.'DescribeResultDoc';
return method_exists($this, $m) ? $this->$m($r) : 'not implemented';
}
return '';
}
public function getRDFXMLDescribeResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: application/rdf+xml');
$index = $r['result'];
$ser = ARC2::getRDFXMLSerializer($this->a);
$dur = $r['query_time'];
return $ser->getSerializedIndex($index)."\n".'<!-- query time: '.$dur.' -->';
}
public function getTurtleDescribeResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: application/x-turtle');
$index = $r['result'];
$ser = ARC2::getTurtleSerializer($this->a);
$dur = $r['query_time'];
return '# query time: '.$dur."\n".$ser->getSerializedIndex($index);
}
public function getRDFJSONDescribeResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: application/json');
$index = $r['result'];
$ser = ARC2::getRDFJSONSerializer($this->a);
$dur = $r['query_time'];
$r = $ser->getSerializedIndex($index);
if (($v = $this->p('jsonp')) || ($v = $this->p('callback'))) {
$r = $v.'('.$r.')';
}
return $r;
}
public function getPHPSERDescribeResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: text/plain');
return serialize($r);
}
public function getPlainDescribeResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: text/plain');
return print_r($r['result'], 1);
}
/* DUMP */
public function getDumpResultDoc()
{
$this->headers = [];
return '';
}
/* LOAD */
public function getLoadResultDoc($r)
{
$formats = [
'xml' => 'SPARQLXML', 'sparql-results+xml' => 'SPARQLXML',
'json' => 'SPARQLJSON', 'sparql-results+json' => 'SPARQLJSON',
'plain' => 'Plain',
'php_ser' => 'PHPSER',
'sql' => ($this->allow_sql ? 'Plain' : 'xSQL'),
'infos' => 'Plain',
];
if ($f = $this->getResultFormat($formats, 'xml')) {
$m = 'get'.$f.'LoadResultDoc';
return method_exists($this, $m) ? $this->$m($r) : 'not implemented';
}
return '';
}
public function getSPARQLXMLLoadResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: application/sparql-results+xml');
$r_val = $r['result']['t_count'];
$dur = $r['query_time'];
$nl = "\n";
return ''.
'<?xml version="1.0"?>'.
$nl.'<sparql xmlns="http://www.w3.org/2005/sparql-results#">'.
$nl.' <head>'.
$nl.' <!-- query time: '.round($dur, 4).' sec -->'.
$nl.' </head>'.
$nl.' <inserted>'.$r_val.'</inserted>'.
$nl.'</sparql>'.
'';
}
public function getSPARQLJSONLoadResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: application/sparql-results+json');
$r_val = $r['result']['t_count'];
$dur = $r['query_time'];
$nl = "\n";
$r = ''.
$nl.'{'.
$nl.' "head": {'.
$nl.' },'.
$nl.' "inserted" : '.$r_val.
$nl.'}'.
'';
if (($v = $this->p('jsonp')) || ($v = $this->p('callback'))) {
$r = $v.'('.$r.')';
}
return $r;
}
public function getPHPSERLoadResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: text/plain');
return serialize($r);
}
public function getPlainLoadResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: text/plain');
return print_r($r['result'], 1);
}
/* DELETE */
public function getDeleteResultDoc($r)
{
$formats = [
'xml' => 'SPARQLXML', 'sparql-results+xml' => 'SPARQLXML',
'json' => 'SPARQLJSON', 'sparql-results+json' => 'SPARQLJSON',
'plain' => 'Plain',
'php_ser' => 'PHPSER',
];
if ($f = $this->getResultFormat($formats, 'xml')) {
$m = 'get'.$f.'DeleteResultDoc';
return method_exists($this, $m) ? $this->$m($r) : 'not implemented';
}
return '';
}
public function getSPARQLXMLDeleteResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: application/sparql-results+xml');
$r_val = $r['result']['t_count'];
$dur = $r['query_time'];
$nl = "\n";
return ''.
'<?xml version="1.0"?>'.
$nl.'<sparql xmlns="http://www.w3.org/2005/sparql-results#">'.
$nl.' <head>'.
$nl.' <!-- query time: '.round($dur, 4).' sec -->'.
$nl.' </head>'.
$nl.' <deleted>'.$r_val.'</deleted>'.
$nl.'</sparql>'.
'';
}
public function getSPARQLJSONDeleteResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: application/sparql-results+json');
$r_val = $r['result']['t_count'];
$dur = $r['query_time'];
$nl = "\n";
$r = ''.
$nl.'{'.
$nl.' "head": {'.
$nl.' },'.
$nl.' "deleted" : '.$r_val.
$nl.'}'.
'';
if (($v = $this->p('jsonp')) || ($v = $this->p('callback'))) {
$r = $v.'('.$r.')';
}
return $r;
}
public function getPHPSERDeleteResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: text/plain');
return serialize($r);
}
public function getPlainDeleteResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: text/plain');
return print_r($r['result'], 1);
}
/* INSERT */
public function getInsertResultDoc($r)
{
$formats = [
'xml' => 'SPARQLXML', 'sparql-results+xml' => 'SPARQLXML',
'json' => 'SPARQLJSON', 'sparql-results+json' => 'SPARQLJSON',
'plain' => 'Plain',
'php_ser' => 'PHPSER',
];
if ($f = $this->getResultFormat($formats, 'xml')) {
$m = 'get'.$f.'InsertResultDoc';
return method_exists($this, $m) ? $this->$m($r) : 'not implemented';
}
return '';
}
public function getSPARQLXMLInsertResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: application/sparql-results+xml');
$r_val = $r['result']['t_count'];
$dur = $r['query_time'];
$nl = "\n";
return ''.
'<?xml version="1.0"?>'.
$nl.'<sparql xmlns="http://www.w3.org/2005/sparql-results#">'.
$nl.' <head>'.
$nl.' <!-- query time: '.round($dur, 4).' sec -->'.
$nl.' </head>'.
$nl.' <inserted>'.$r_val.'</inserted>'.
$nl.'</sparql>'.
'';
}
public function getSPARQLJSONInsertResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: application/sparql-results+json');
$r_val = $r['result']['t_count'];
$dur = $r['query_time'];
$nl = "\n";
$r = ''.
$nl.'{'.
$nl.' "head": {'.
$nl.' },'.
$nl.' "inserted" : '.$r_val.
$nl.'}'.
'';
if (($v = $this->p('jsonp')) || ($v = $this->p('callback'))) {
$r = $v.'('.$r.')';
}
return $r;
}
public function getPHPSERInsertResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: text/plain');
return serialize($r);
}
public function getPlainInsertResultDoc($r)
{
$this->setHeader('content-type', 'Content-Type: text/plain');
return print_r($r['result'], 1);
}
public function jsonEscape($v)
{
if (function_exists('json_encode')) {
return trim(json_encode($v), '"');
}
$from = ['\\', "\r", "\t", "\n", '"', "\b", "\f", '/'];
$to = ['\\\\', '\r', '\t', '\n', '\"', '\b', '\f', '\/'];
return str_replace($from, $to, $v);
}
public function getHTMLFormDoc()
{
return '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
'.$this->getHTMLDocHead().'
'.$this->getHTMLDocBody().'
</html>
';
}
public function getHTMLDocHead()