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@ -194,7 +194,7 @@ function receive_post(&$a) {
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logger('mod-diaspora: Fetching key for ' . $author_link );
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// Get diaspora public key (pkcs#1) and convert to pkcs#8
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// Get diaspora public key (pkcs#1) and convert to pkcs#8
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$key = get_diaspora_key($author_link);
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if(! $key) {
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@ -202,14 +202,17 @@ function receive_post(&$a) {
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receive_return(400);
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}
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$verify = false;
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if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
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$verify = openssl_verify($signed_data,$signature,$key,'sha256');
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}
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else {
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// FIXME
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// fallback sha256 verify for PHP < 5.3
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$rawsig = '';
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$hash = hash('sha256',$signed_data,true);
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openssl_public_decrypt($signature,$rawsig,$key);
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$verify = (($rawsig && substr($rawsig,-32) === $hash) ? true : false);
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}
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if(! $verify) {
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