Use local copy of the w3id security context
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@ -69,49 +69,14 @@ class JsonLD
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return $data;
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}
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public static function removeSecurityLink(array $json)
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private static function replaceSecurityLink(array $json)
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{
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if (!is_array($json['@context'])) {
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return $json;
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}
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if (($key = array_search('https://w3id.org/security/v1', $json['@context'])) !== false) {
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unset($json['@context'][$key]);
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$json['@context'] = array_values(array_filter($json['@context']));
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}
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return $json;
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}
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public static function fixContext(array $json)
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{
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// Preparation for adding possibly missing content to the context
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if (!empty($json['@context']) && is_string($json['@context'])) {
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$json['@context'] = [$json['@context']];
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}
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if (($key = array_search('https://w3id.org/security/v1', $json['@context'])) !== false) {
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unset($json['@context'][$key]);
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$json['@context'] = array_values(array_filter($json['@context']));
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}
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$last_entry = count($json['@context']) - 1;
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$additional = [
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'w3id' => 'https://w3id.org/security#',
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'signature' => 'w3id:signature',
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'RsaSignature2017' => 'w3id:RsaSignature2017',
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'created' => 'w3id:created',
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'creator' => 'w3id:creator',
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'nonce' => 'w3id:nonce',
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'signatureValue' => 'w3id:signatureValue',
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'publicKey' => 'w3id:publicKey',
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'publicKeyPem' => 'w3id:publicKeyPem'];
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if (is_array($json['@context'][$last_entry])) {
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$json['@context'][$last_entry] = array_merge($json['@context'][$last_entry], $additional);
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} else {
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$json['@context'][] = $additional;
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$json['@context'][$key] = DI::baseUrl() . '/static/w3id-security-v1.json';
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}
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return $json;
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@ -127,7 +92,7 @@ class JsonLD
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*/
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public static function normalize($json)
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{
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$json = self::removeSecurityLink($json);
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$json = self::replaceSecurityLink($json);
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jsonld_set_document_loader('Friendica\Util\JsonLD::documentLoader');
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@ -163,32 +128,23 @@ class JsonLD
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*/
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public static function compact($json)
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{
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$context = $json['@context'] ?? [];
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$json['@context'] = ActivityPub::CONTEXT;
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$compacted = self::internalCompact($json);
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$compacted = self::internalCompact($json, false);
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if (empty($compacted)) {
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Logger::info('Failed to compact with our context');
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$json['@context'] = $context;
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$compacted = self::internalCompact($json);
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if (empty($compacted)) {
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Logger::info('Failed to compact with original context');
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} else {
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Logger::info('Successful compacted with original context');
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}
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$json['@context'] = ActivityPub::CONTEXT;
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$compacted = self::internalCompact($json, true);
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}
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return $compacted;
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}
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private static function internalCompact($json)
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private static function internalCompact($json, bool $error_log)
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{
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$json = self::fixContext($json);
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$json = self::replaceSecurityLink($json);
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jsonld_set_document_loader('Friendica\Util\JsonLD::documentLoader');
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$context = (object)['as' => 'https://www.w3.org/ns/activitystreams#',
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'w3id' => (object)['@id' => 'https://w3id.org/security#', '@type' => '@id'],
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'w3id' => 'https://w3id.org/security#',
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'ldp' => (object)['@id' => 'http://www.w3.org/ns/ldp#', '@type' => '@id'],
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'vcard' => (object)['@id' => 'http://www.w3.org/2006/vcard/ns#', '@type' => '@id'],
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'dfrn' => (object)['@id' => 'http://purl.org/macgirvin/dfrn/1.0/', '@type' => '@id'],
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@ -200,6 +156,17 @@ class JsonLD
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'sc' => (object)['@id' => 'http://schema.org#', '@type' => '@id'],
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'pt' => (object)['@id' => 'https://joinpeertube.org/ns#', '@type' => '@id']];
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// Preparation for adding possibly missing content to the context
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if (!empty($json['@context']) && is_string($json['@context'])) {
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$json['@context'] = [$json['@context']];
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}
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// Workaround for servers with missing context
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// See issue https://github.com/nextcloud/social/issues/330
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if (!empty($json['@context']) && is_array($json['@context'])) {
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$json['@context'][] = DI::baseUrl() . '/static/w3id-security-v1.json';
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}
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// Trying to avoid memory problems with large content fields
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if (!empty($json['object']['source']['content'])) {
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$content = $json['object']['source']['content'];
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@ -213,7 +180,9 @@ class JsonLD
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}
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catch (Exception $e) {
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$compacted = false;
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Logger::error('compacting error', ['line' => $e->getLine(), 'message' => $e->getMessage(),'callstack' => System::callstack(20)]);
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if ($error_log) {
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Logger::error('compacting error', ['line' => $e->getLine(), 'message' => $e->getMessage(),'callstack' => System::callstack(20)]);
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}
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}
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$json = json_decode(json_encode($compacted, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE), true);
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@ -57,7 +57,7 @@ class LDSignature
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$dhash = self::hash(self::signableData($data));
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$x = Crypto::rsaVerify($ohash . $dhash, base64_decode($data['signature']['signatureValue']), $pubkey);
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Logger::log('LD-verify: ' . intval($x));
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Logger::notice('LD-verify', ['verified' => (int)$x, 'actor' => $profile['url']]);
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if (empty($x)) {
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return false;
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49
static/w3id-security-v1.json
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49
static/w3id-security-v1.json
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@ -0,0 +1,49 @@
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{
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"@context": {
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"id": "@id",
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"type": "@type",
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"dc": "http://purl.org/dc/terms/",
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"sec": "https://w3id.org/security#",
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"xsd": "http://www.w3.org/2001/XMLSchema#",
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"EcdsaKoblitzSignature2016": "sec:EcdsaKoblitzSignature2016",
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"Ed25519Signature2018": "sec:Ed25519Signature2018",
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"EncryptedMessage": "sec:EncryptedMessage",
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"GraphSignature2012": "sec:GraphSignature2012",
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"LinkedDataSignature2015": "sec:LinkedDataSignature2015",
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"LinkedDataSignature2016": "sec:LinkedDataSignature2016",
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"CryptographicKey": "sec:Key",
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"authenticationTag": "sec:authenticationTag",
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"canonicalizationAlgorithm": "sec:canonicalizationAlgorithm",
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"cipherAlgorithm": "sec:cipherAlgorithm",
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"cipherData": "sec:cipherData",
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"cipherKey": "sec:cipherKey",
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"created": {"@id": "dc:created", "@type": "xsd:dateTime"},
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"creator": {"@id": "dc:creator", "@type": "@id"},
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"digestAlgorithm": "sec:digestAlgorithm",
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"digestValue": "sec:digestValue",
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"domain": "sec:domain",
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"encryptionKey": "sec:encryptionKey",
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"expiration": {"@id": "sec:expiration", "@type": "xsd:dateTime"},
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"expires": {"@id": "sec:expiration", "@type": "xsd:dateTime"},
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"initializationVector": "sec:initializationVector",
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"iterationCount": "sec:iterationCount",
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"nonce": "sec:nonce",
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"normalizationAlgorithm": "sec:normalizationAlgorithm",
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"owner": {"@id": "sec:owner", "@type": "@id"},
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"password": "sec:password",
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"privateKey": {"@id": "sec:privateKey", "@type": "@id"},
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"privateKeyPem": "sec:privateKeyPem",
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"publicKey": {"@id": "sec:publicKey", "@type": "@id"},
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"publicKeyBase58": "sec:publicKeyBase58",
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"publicKeyPem": "sec:publicKeyPem",
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"publicKeyService": {"@id": "sec:publicKeyService", "@type": "@id"},
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"revoked": {"@id": "sec:revoked", "@type": "xsd:dateTime"},
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"salt": "sec:salt",
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"signature": "sec:signature",
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"signatureAlgorithm": "sec:signingAlgorithm",
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"signatureValue": "sec:signatureValue"
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}
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}
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