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Unverified Commit 2428215f authored by Tim van Dijen's avatar Tim van Dijen Committed by GitHub
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PSR-2

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modules/metarefresh/lib/MetaLoader.php
+ 89
− 88
View file @ 2428215f
......@@ -3,9 +3,8 @@
* @author Andreas Åkre Solberg <andreas.solberg@uninett.no>
* @package SimpleSAMLphp
*/
class sspmod_metarefresh_MetaLoader {
class sspmod_metarefresh_MetaLoader
{
private $expire;
private $metadata;
private $oldMetadataSrc;
......@@ -26,19 +25,20 @@ class sspmod_metarefresh_MetaLoader {
*
* @param
*/
public function __construct($expire = NULL, $stateFile = NULL, $oldMetadataSrc = NULL) {
public function __construct($expire = null, $stateFile = null, $oldMetadataSrc = null)
{
$this->expire = $expire;
$this->metadata = array();
$this->oldMetadataSrc = $oldMetadataSrc;
$this->stateFile = $stateFile;
$this->changed = FALSE;
$this->changed = false;
// Read file containing $state from disk
if(is_readable($stateFile)) {
require($stateFile);
}
$this->state = (isset($state)) ? $state : array();
$this->state = array();
}
......@@ -74,31 +74,31 @@ class sspmod_metarefresh_MetaLoader {
*
* @param $source
*/
public function loadSource($source) {
public function loadSource($source)
{
if (preg_match('@^https?://@i', $source['src'])) {
// Build new HTTP context
$context = $this->createContext($source);
// GET!
try {
list($data, $responseHeaders) = \SimpleSAML\Utils\HTTP::fetch($source['src'], $context, TRUE);
list($data, $responseHeaders) = \SimpleSAML\Utils\HTTP::fetch($source['src'], $context, true);
} catch(Exception $e) {
SimpleSAML\Logger::warning('metarefresh: ' . $e->getMessage());
}
// We have response headers, so the request succeeded
if(!isset($responseHeaders)) {
if (!isset($responseHeaders)) {
// No response headers, this means the request failed in some way, so re-use old data
SimpleSAML\Logger::debug('No response from ' . $source['src'] . ' - attempting to re-use cached metadata');
$this->addCachedMetadata($source);
return;
} elseif(preg_match('@^HTTP/1\.[01]\s304\s@', $responseHeaders[0])) {
} elseif (preg_match('@^HTTP/1\.[01]\s304\s@', $responseHeaders[0])) {
// 304 response
SimpleSAML\Logger::debug('Received HTTP 304 (Not Modified) - attempting to re-use cached metadata');
$this->addCachedMetadata($source);
return;
} elseif(!preg_match('@^HTTP/1\.[01]\s200\s@', $responseHeaders[0])) {
} elseif (!preg_match('@^HTTP/1\.[01]\s200\s@', $responseHeaders[0])) {
// Other error
SimpleSAML\Logger::debug('Error from ' . $source['src'] . ' - attempting to re-use cached metadata');
$this->addCachedMetadata($source);
......@@ -107,7 +107,7 @@ class sspmod_metarefresh_MetaLoader {
} else {
// Local file.
$data = file_get_contents($source['src']);
$responseHeaders = NULL;
$responseHeaders = null;
}
// Everything OK. Proceed.
......@@ -124,32 +124,32 @@ class sspmod_metarefresh_MetaLoader {
return;
}
foreach($entities as $entity) {
foreach ($entities as $entity) {
if(isset($source['blacklist'])) {
if(!empty($source['blacklist']) && in_array($entity->getEntityID(), $source['blacklist'], true)) {
if (isset($source['blacklist'])) {
if (!empty($source['blacklist']) && in_array($entity->getEntityID(), $source['blacklist'], true)) {
SimpleSAML\Logger::info('Skipping "' . $entity->getEntityID() . '" - blacklisted.' . "\n");
continue;
}
}
if(isset($source['whitelist'])) {
if(!empty($source['whitelist']) && !in_array($entity->getEntityID(), $source['whitelist'], true)) {
if (isset($source['whitelist'])) {
if (!empty($source['whitelist']) && !in_array($entity->getEntityID(), $source['whitelist'], true)) {
SimpleSAML\Logger::info('Skipping "' . $entity->getEntityID() . '" - not in the whitelist.' . "\n");
continue;
}
}
if(array_key_exists('certificates', $source) && $source['certificates'] !== NULL) {
if(!$entity->validateSignature($source['certificates'])) {
if (array_key_exists('certificates', $source) && $source['certificates'] !== null) {
if (!$entity->validateSignature($source['certificates'])) {
SimpleSAML\Logger::info('Skipping "' . $entity->getEntityId() . '" - could not verify signature using certificate.' . "\n");
continue;
}
}
if(array_key_exists('validateFingerprint', $source) && $source['validateFingerprint'] !== NULL) {
if(!array_key_exists('certificates', $source) || $source['certificates'] == NULL) {
if(!$entity->validateFingerprint($source['validateFingerprint'])) {
if (array_key_exists('validateFingerprint', $source) && $source['validateFingerprint'] !== null) {
if (!array_key_exists('certificates', $source) || $source['certificates'] == null) {
if (!$entity->validateFingerprint($source['validateFingerprint'])) {
SimpleSAML\Logger::info('Skipping "' . $entity->getEntityId() . '" - could not verify signature using fingerprint.' . "\n");
continue;
}
......@@ -158,7 +158,7 @@ class sspmod_metarefresh_MetaLoader {
}
}
$template = NULL;
$template = null;
if (array_key_exists('template', $source)) $template = $source['template'];
$this->addMetadata($source['src'], $entity->getMetadata1xSP(), 'shib13-sp-remote', $template);
......@@ -177,23 +177,24 @@ class sspmod_metarefresh_MetaLoader {
/**
* Create HTTP context, with any available caches taken into account
*/
private function createContext($source) {
private function createContext($source)
{
$config = SimpleSAML_Configuration::getInstance();
$name = $config->getString('technicalcontact_name', NULL);
$mail = $config->getString('technicalcontact_email', NULL);
$name = $config->getString('technicalcontact_name', null);
$mail = $config->getString('technicalcontact_email', null);
$rawheader = "User-Agent: SimpleSAMLphp metarefresh, run by $name <$mail>\r\n";
if (isset($source['conditionalGET']) && $source['conditionalGET']) {
if(array_key_exists($source['src'], $this->state)) {
if (array_key_exists($source['src'], $this->state)) {
$sourceState = $this->state[$source['src']];
if(isset($sourceState['last-modified'])) {
if (isset($sourceState['last-modified'])) {
$rawheader .= 'If-Modified-Since: ' . $sourceState['last-modified'] . "\r\n";
}
if(isset($sourceState['etag'])) {
if (isset($sourceState['etag'])) {
$rawheader .= 'If-None-Match: ' . $sourceState['etag'] . "\r\n";
}
}
......@@ -203,12 +204,13 @@ class sspmod_metarefresh_MetaLoader {
}
private function addCachedMetadata($source) {
if(isset($this->oldMetadataSrc)) {
foreach($this->types as $type) {
foreach($this->oldMetadataSrc->getMetadataSet($type) as $entity) {
if(array_key_exists('metarefresh:src', $entity)) {
if($entity['metarefresh:src'] == $source['src']) {
private function addCachedMetadata($source)
{
if (isset($this->oldMetadataSrc)) {
foreach ($this->types as $type) {
foreach ($this->oldMetadataSrc->getMetadataSet($type) as $entity) {
if (array_key_exists('metarefresh:src', $entity)) {
if ($entity['metarefresh:src'] == $source['src']) {
$this->addMetadata($source['src'], $entity, $type);
}
}
......@@ -221,24 +223,23 @@ class sspmod_metarefresh_MetaLoader {
/**
* Store caching state data for a source
*/
private function saveState($source, $responseHeaders) {
private function saveState($source, $responseHeaders)
{
if (isset($source['conditionalGET']) && $source['conditionalGET']) {
// Headers section
$candidates = array('last-modified', 'etag');
foreach($candidates as $candidate) {
if(array_key_exists($candidate, $responseHeaders)) {
foreach ($candidates as $candidate) {
if (array_key_exists($candidate, $responseHeaders)) {
$this->state[$source['src']][$candidate] = $responseHeaders[$candidate];
}
}
if(!empty($this->state[$source['src']])) {
if (!empty($this->state[$source['src']])) {
// Timestamp when this src was requested.
$this->state[$source['src']]['requested_at'] = $this->getTime();
$this->changed = TRUE;
$this->changed = true;
}
}
}
......@@ -247,13 +248,14 @@ class sspmod_metarefresh_MetaLoader {
/**
* Parse XML metadata and return entities
*/
private function loadXML($data, $source) {
private function loadXML($data, $source)
{
try {
$doc = \SAML2\DOMDocumentFactory::fromString($data);
} catch (Exception $e) {
throw new Exception('Failed to read XML from ' . $source['src']);
}
if ($doc->documentElement === NULL) {
if ($doc->documentElement === null) {
throw new Exception('Opened file is not an XML document: ' . $source['src']);
}
return SimpleSAML_Metadata_SAMLParser::parseDescriptorsElement($doc->documentElement);
......@@ -263,14 +265,15 @@ class sspmod_metarefresh_MetaLoader {
/**
* This function writes the state array back to disk
*/
public function writeState() {
if($this->changed) {
public function writeState()
{
if ($this->changed) {
SimpleSAML\Logger::debug('Writing: ' . $this->stateFile);
SimpleSAML\Utils\System::writeFile(
$this->stateFile,
"<?php\n/* This file was generated by the metarefresh module at ".$this->getTime() . ".\n".
" Do not update it manually as it will get overwritten. */\n".
'$state = ' . var_export($this->state, TRUE) . ";\n?>\n",
'$state = ' . var_export($this->state, true) . ";\n?>\n",
0644
);
}
......@@ -280,26 +283,26 @@ class sspmod_metarefresh_MetaLoader {
/**
* This function writes the metadata to stdout.
*/
public function dumpMetadataStdOut() {
foreach($this->metadata as $category => $elements) {
public function dumpMetadataStdOut()
{
foreach ($this->metadata as $category => $elements) {
echo('/* The following data should be added to metadata/' . $category . '.php. */' . "\n");
echo '/* The following data should be added to metadata/' . $category . '.php. */' . "\n";
foreach($elements as $m) {
foreach ($elements as $m) {
$filename = $m['filename'];
$entityID = $m['metadata']['entityid'];
echo("\n");
echo('/* The following metadata was generated from ' . $filename . ' on ' . $this->getTime() . '. */' . "\n");
echo('$metadata[\'' . addslashes($entityID) . '\'] = ' . var_export($m['metadata'], TRUE) . ';' . "\n");
echo "\n";
echo '/* The following metadata was generated from ' . $filename . ' on ' . $this->getTime() . '. */' . "\n";
echo '$metadata[\'' . addslashes($entityID) . '\'] = ' . var_export($m['metadata'], true) . ';' . "\n";
}
echo("\n");
echo('/* End of data which should be added to metadata/' . $category . '.php. */' . "\n");
echo("\n");
echo "\n";
echo '/* End of data which should be added to metadata/' . $category . '.php. */' . "\n";
echo "\n";
}
}
......@@ -312,9 +315,9 @@ class sspmod_metarefresh_MetaLoader {
* @param $metadata The metadata.
* @param $type The metadata type.
*/
private function addMetadata($filename, $metadata, $type, $template = NULL) {
if($metadata === NULL) {
private function addMetadata($filename, $metadata, $type, $template = null)
{
if ($metadata === null) {
return;
}
......@@ -323,7 +326,7 @@ class sspmod_metarefresh_MetaLoader {
}
$metadata['metarefresh:src'] = $filename;
if(!array_key_exists($type, $this->metadata)) {
if (!array_key_exists($type, $this->metadata)) {
$this->metadata[$type] = array();
}
......@@ -352,15 +355,15 @@ class sspmod_metarefresh_MetaLoader {
/**
* This function writes the metadata to an ARP file
*/
public function writeARPfile($config) {
public function writeARPfile($config)
{
assert($config instanceof SimpleSAML_Configuration);
$arpfile = $config->getValue('arpfile');
$types = array('saml20-sp-remote');
$md = array();
foreach($this->metadata as $category => $elements) {
foreach ($this->metadata as $category => $elements) {
if (!in_array($category, $types, true)) continue;
$md = array_merge($md, $elements);
}
......@@ -377,39 +380,37 @@ class sspmod_metarefresh_MetaLoader {
SimpleSAML\Logger::info('Writing ARP file: ' . $arpfile . "\n");
file_put_contents($arpfile, $arpxml);
}
/**
* This function writes the metadata to to separate files in the output directory.
*/
public function writeMetadataFiles($outputDir) {
while(strlen($outputDir) > 0 && $outputDir[strlen($outputDir) - 1] === '/') {
public function writeMetadataFiles($outputDir)
{
while (strlen($outputDir) > 0 && $outputDir[strlen($outputDir) - 1] === '/') {
$outputDir = substr($outputDir, 0, strlen($outputDir) - 1);
}
if(!file_exists($outputDir)) {
if (!file_exists($outputDir)) {
SimpleSAML\Logger::info('Creating directory: ' . $outputDir . "\n");
$res = @mkdir($outputDir, 0777, TRUE);
if ($res === FALSE) {
$res = @mkdir($outputDir, 0777, true);
if ($res === false) {
throw new Exception('Error creating directory: ' . $outputDir);
}
}
foreach($this->types as $type) {
foreach ($this->types as $type) {
$filename = $outputDir . '/' . $type . '.php';
if(array_key_exists($type, $this->metadata)) {
if (array_key_exists($type, $this->metadata)) {
$elements = $this->metadata[$type];
SimpleSAML\Logger::debug('Writing: ' . $filename);
$content = '<?php' . "\n" . '/* This file was generated by the metarefresh module at '. $this->getTime() . "\n";
$content .= ' Do not update it manually as it will get overwritten' . "\n" . '*/' . "\n";
foreach($elements as $m) {
foreach ($elements as $m) {
$entityID = $m['metadata']['entityid'];
$content .= "\n";
$content .= '$metadata[\'' . addslashes($entityID) . '\'] = ' . var_export($m['metadata'], TRUE) . ';' . "\n";
......@@ -418,8 +419,8 @@ class sspmod_metarefresh_MetaLoader {
$content .= "\n" . '?>';
SimpleSAML\Utils\System::writeFile($filename, $content, 0644);
} elseif(is_file($filename)) {
if(unlink($filename)) {
} elseif (is_file($filename)) {
if (unlink($filename)) {
SimpleSAML\Logger::debug('Deleting stale metadata file: ' . $filename);
} else {
SimpleSAML\Logger::warning('Could not delete stale metadata file: ' . $filename);
......@@ -434,7 +435,8 @@ class sspmod_metarefresh_MetaLoader {
*
* @param string $outputDir The directory we should save the metadata to.
*/
public function writeMetadataSerialize($outputDir) {
public function writeMetadataSerialize($outputDir)
{
assert(is_string($outputDir));
$metaHandler = new SimpleSAML_Metadata_MetaDataStorageHandlerSerialize(array('directory' => $outputDir));
......@@ -445,7 +447,7 @@ class sspmod_metarefresh_MetaLoader {
$entityId = $m['metadata']['entityid'];
SimpleSAML\Logger::debug('metarefresh: Add metadata entry ' .
var_export($entityId, TRUE) . ' in set ' . var_export($set, TRUE) . '.');
var_export($entityId, true) . ' in set ' . var_export($set, true) . '.');
$metaHandler->saveMetadata($entityId, $set, $m['metadata']);
}
}
......@@ -455,8 +457,8 @@ class sspmod_metarefresh_MetaLoader {
foreach ($metaHandler->getMetadataSets() as $set) {
foreach ($metaHandler->getMetadataSet($set) as $entityId => $metadata) {
if (!array_key_exists('expire', $metadata)) {
SimpleSAML\Logger::warning('metarefresh: Metadata entry without expire timestamp: ' . var_export($entityId, TRUE) .
' in set ' . var_export($set, TRUE) . '.');
SimpleSAML\Logger::warning('metarefresh: Metadata entry without expire timestamp: ' . var_export($entityId, true) .
' in set ' . var_export($set, true) . '.');
continue;
}
if ($metadata['expire'] > $ct) {
......@@ -464,18 +466,17 @@ class sspmod_metarefresh_MetaLoader {
}
SimpleSAML\Logger::debug('metarefresh: ' . $entityId . ' expired ' . date('l jS \of F Y h:i:s A', $metadata['expire']) );
SimpleSAML\Logger::debug('metarefresh: Delete expired metadata entry ' .
var_export($entityId, TRUE) . ' in set ' . var_export($set, TRUE) . '. (' . ($ct - $metadata['expire']) . ' sec)');
var_export($entityId, true) . ' in set ' . var_export($set, true) . '. (' . ($ct - $metadata['expire']) . ' sec)');
$metaHandler->deleteMetadata($entityId, $set);
}
}
}
private function getTime() {
private function getTime()
{
/* The current date, as a string. */
date_default_timezone_set('UTC');
$when = date('Y-m-d\\TH:i:s\\Z');
return $when;
return = date('Y-m-d\\TH:i:s\\Z');
}
}
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