diff options
Diffstat (limited to 'Zotlabs/Web/HTTPSig.php')
| -rw-r--r-- | Zotlabs/Web/HTTPSig.php | 70 |
1 files changed, 57 insertions, 13 deletions
diff --git a/Zotlabs/Web/HTTPSig.php b/Zotlabs/Web/HTTPSig.php index 660fdc4ce..15371d403 100644 --- a/Zotlabs/Web/HTTPSig.php +++ b/Zotlabs/Web/HTTPSig.php @@ -127,6 +127,7 @@ class HTTPSig { if (array_key_exists($h, $headers)) { $signed_data .= $h . ': ' . $headers[$h] . "\n"; } + if ($h === 'date') { $d = new DateTime($headers[$h]); $d->setTimeZone(new DateTimeZone('UTC')); @@ -142,20 +143,34 @@ class HTTPSig { $signed_data = rtrim($signed_data, "\n"); $algorithm = null; + if ($sig_block['algorithm'] === 'rsa-sha256') { $algorithm = 'sha256'; } + if ($sig_block['algorithm'] === 'rsa-sha512') { $algorithm = 'sha512'; } - if (!array_key_exists('keyId', $sig_block)) + if (!array_key_exists('keyId', $sig_block)) { return $result; + } $result['signer'] = $sig_block['keyId']; $cached_key = self::get_key($key, $keytype, $result['signer']); + if ($sig_block['algorithm'] === 'hs2019') { + if (isset($cached_key['algorithm'])) { + if (strpos($cached_key['algorithm'], 'rsa-sha256') !== false) { + $algorithm = 'sha256'; + } + + if (strpos($cached_key['algorithm'], 'rsa-sha512') !== false) { + $algorithm = 'sha512'; + } + } + } if (!($cached_key && $cached_key['public_key'])) { return $result; @@ -296,7 +311,7 @@ class HTTPSig { $best = Libzot::zot_record_preferred($x); } if ($best && $best['xchan_pubkey']) { - return ['portable_id' => $best['xchan_hash'], 'public_key' => $best['xchan_pubkey'], 'hubloc' => $best]; + return ['portable_id' => $best['xchan_hash'], 'public_key' => $best['xchan_pubkey'], 'algorithm' => get_xconfig($best['xchan_hash'], 'system', 'signing_algorithm'), 'hubloc' => $best]; } } @@ -308,15 +323,41 @@ class HTTPSig { // The record wasn't in cache. Fetch it now. $r = ActivityStreams::fetch($id); - - if ($r) { - if (array_key_exists('publicKey', $r) && array_key_exists('publicKeyPem', $r['publicKey']) && array_key_exists('id', $r['publicKey'])) { - if ($r['publicKey']['id'] === $id || $r['id'] === $id) { - $portable_id = ((array_key_exists('owner', $r['publicKey'])) ? $r['publicKey']['owner'] : EMPTY_STR); - return ['public_key' => self::convertKey($r['publicKey']['publicKeyPem']), 'portable_id' => $portable_id, 'hubloc' => []]; - } - } - } + $signatureAlgorithm = EMPTY_STR; + + if ($r) { + if (array_key_exists('publicKey', $r) && array_key_exists('publicKeyPem', $r['publicKey']) && array_key_exists('id', $r['publicKey'])) { + if ($r['publicKey']['id'] === $id || $r['id'] === $id) { + $portable_id = ((array_key_exists('owner', $r['publicKey'])) ? $r['publicKey']['owner'] : EMPTY_STR); + + // the w3c sec context has conflicting names and no defined values for this property except + // "http://www.w3.org/2000/09/xmldsig#rsa-sha1" + + // Since the names conflict, it could mess up LD-signatures but we will accept both, and at this + // time we will only look for the substrings 'rsa-sha256' and 'rsa-sha512' within those properties. + // We will also accept a toplevel 'sigAlgorithm' regardless of namespace with the same constraints. + // Default to rsa-sha256 if we can't figure out. If they're sending 'hs2019' we have to + // look for something. + + if (isset($r['publicKey']['signingAlgorithm'])) { + $signatureAlgorithm = $r['publicKey']['signingAlgorithm']; + set_xconfig($portable_id, 'system', 'signing_algorithm', $signatureAlgorithm); + } + + if (isset($r['publicKey']['signatureAlgorithm'])) { + $signatureAlgorithm = $r['publicKey']['signatureAlgorithm']; + set_xconfig($portable_id, 'system', 'signing_algorithm', $signatureAlgorithm); + } + + if (isset($r['sigAlgorithm'])) { + $signatureAlgorithm = $r['sigAlgorithm']; + set_xconfig($portable_id, 'system', 'signing_algorithm', $signatureAlgorithm); + } + + return ['public_key' => self::convertKey($r['publicKey']['publicKeyPem']), 'portable_id' => $portable_id, 'algorithm' => (($signatureAlgorithm) ? $signatureAlgorithm : 'rsa-sha256'), 'hubloc' => []]; + } + } + } // No key was found return false; @@ -343,7 +384,7 @@ class HTTPSig { } if ($best && $best['xchan_pubkey']) { - return ['portable_id' => $best['xchan_hash'], 'public_key' => $best['xchan_pubkey'], 'hubloc' => $best]; + return ['portable_id' => $best['xchan_hash'], 'public_key' => $best['xchan_pubkey'], 'algorithm' => get_xconfig($best['xchan_hash'], 'system', 'signing_algorithm'), 'hubloc' => $best]; } } @@ -389,7 +430,7 @@ class HTTPSig { } if ($best && $best['xchan_pubkey']) { - return ['portable_id' => $best['xchan_hash'], 'public_key' => $best['xchan_pubkey'], 'hubloc' => $best]; + return ['portable_id' => $best['xchan_hash'], 'public_key' => $best['xchan_pubkey'], 'algorithm' => get_xconfig($best['xchan_hash'], 'system', 'signing_algorithm'), 'hubloc' => $best]; } } @@ -461,6 +502,9 @@ class HTTPSig { $x = self::sign($head, $prvkey, $alg); + // TODO: should we default to hs2019? + // $headerval = 'keyId="' . $keyid . '",algorithm="' . (($algorithm === 'rsa-sha256') ? 'hs2019' : $algorithm) . '",headers="' . $x['headers'] . '",signature="' . $x['signature'] . '"'; + $headerval = 'keyId="' . $keyid . '",algorithm="' . $algorithm . '",headers="' . $x['headers'] . '",signature="' . $x['signature'] . '"'; if ($encryption) { |