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Add secure context loader that require https even when redirecting.

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This commit is contained in:
Dave Longley 2013-02-18 16:34:14 -05:00
parent dfbea38c6f
commit 41ee90f02c
1 changed files with 54 additions and 4 deletions
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54
jsonld.php
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@ -219,8 +219,14 @@ function jsonld_get_url($url) {
*/
function jsonld_default_get_url($url) {
// default JSON-LD GET implementation
$opts = array('http' =>
array(
$opts = array(
'http' => array(
'method' => "GET",
'header' =>
"Accept: application/ld+json\r\n" .
"User-Agent: PaySwarm PHP Client/1.0\r\n"),
'https' => array(
'verify_peer' => true,
'method' => "GET",
'header' =>
"Accept: application/ld+json\r\n" .
@ -233,6 +239,50 @@ function jsonld_default_get_url($url) {
return $result;
}
/**
* The default implementation to retrieve JSON-LD at the given secure URL.
*
* @param string $url the secure URL to to retrieve.
*
* @return the JSON-LD.
*/
function jsonld_default_get_secure_url($url) {
if(strpos($url, 'https') !== 0) {
throw new Exception("Could not GET url: '$url'; 'https' is required.");
}
$redirects = array();
// default JSON-LD https GET implementation
$opts = array(
'https' => array(
'verify_peer' => true,
'method' => "GET",
'header' =>
"Accept: application/ld+json\r\n" .
"User-Agent: PaySwarm PHP Client/1.0\r\n"));
$stream = stream_context_create($opts);
stream_context_set_params($stream, array('notification' =>
function($notification_code, $severity, $message) use (&$redirects) {
switch($notification_code) {
case STREAM_NOTIFY_REDIRECTED:
$redirects[] = $message;
break;
};
}));
$result = @file_get_contents($url, false, $stream);
if($result === false) {
throw new Exception("Could not GET url: '$url'");
}
foreach($redirects as $redirect) {
if(strpos($redirect, 'https') !== 0) {
throw new Exception(
"Could not GET redirected url: '$redirect'; 'https' is required.");
}
}
return $result;
}
/** Registered global RDF Statement parsers hashed by content-type. */
global $jsonld_rdf_parsers;
$jsonld_rdf_parsers = new stdClass();