sforkowany z mirror/friendica
Merge pull request #2648 from annando/1606-diaspora-signature
Diaspora: Incompatibilities with signature check solved2022.09-rc
commit
ee7ca9cf71
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@ -360,8 +360,10 @@ class diaspora {
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$data = parse_xml_string($msg["message"], false);
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if (!is_object($data))
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if (!is_object($data)) {
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logger("No valid XML ".$msg["message"], LOGGER_DEBUG);
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return false;
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}
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$first_child = $data->getName();
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@ -422,9 +424,9 @@ class diaspora {
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}
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}
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if ($fieldname == "author_signature")
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if (($fieldname == "author_signature") AND ($entry != ""))
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$author_signature = base64_decode($entry);
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elseif ($fieldname == "parent_author_signature")
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elseif (($fieldname == "parent_author_signature") AND ($entry != ""))
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$parent_author_signature = base64_decode($entry);
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elseif ($fieldname != "target_author_signature") {
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if ($signed_data != "") {
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@ -451,19 +453,27 @@ class diaspora {
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return true;
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// No author_signature? This is a must, so we quit.
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if (!isset($author_signature))
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if (!isset($author_signature)) {
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logger("No author signature for type ".$type, LOGGER_DEBUG);
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return false;
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}
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if (isset($parent_author_signature)) {
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$key = self::key($msg["author"]);
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if (!rsa_verify($signed_data, $parent_author_signature, $key, "sha256"))
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if (!rsa_verify($signed_data, $parent_author_signature, $key, "sha256")) {
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logger("No valid parent author signature for author ".$msg["author"]. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$parent_author_signature, LOGGER_DEBUG);
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return false;
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}
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}
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$key = self::key($fields->author);
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return rsa_verify($signed_data, $author_signature, $key, "sha256");
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if (!rsa_verify($signed_data, $author_signature, $key, "sha256")) {
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logger("No valid author signature for author ".$msg["author"]. " in type ".$type." - signed data: ".$signed_data." - Message: ".$msg["message"]." - Signature ".$author_signature, LOGGER_DEBUG);
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return false;
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} else
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return true;
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}
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/**
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