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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,113 @@ | ||
<?php | ||
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class NSSCryptography | ||
{ | ||
private $nss_directory = null; | ||
private $nss_password = null; | ||
private $nss_nick = null; | ||
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private function __construct($dir, $pass, $nick) { | ||
$this->nss_directory = $dir; | ||
$this->nss_password = $pass; | ||
$this->nss_nick = $nick; | ||
} | ||
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private static $instance = null; | ||
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public static function getInstance($dir = null, $pass = null, $nick = null) { | ||
if (!self::$instance) { | ||
self::$instance = new NSSCryptography($dir, $pass, $nick); | ||
} | ||
return self::$instance; | ||
} | ||
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public function addSignature($pdf_path, $reason) { | ||
putenv('NSSPASS='.$this->nss_password); | ||
exec('pdfsig '.$pdf_path.' '.$pdf_path.'.signed.pdf -add-signature -nssdir "'.$this->nss_directory.'" -nss-pwd "$NSSPASS" -nick "'.$this->nss_nick.'" -reason "'.$reason.'" 2>&1', $output, $returnCode); | ||
if ($returnCode) { | ||
throw new Exception('pdfsign error: '.implode(' ', $output)); | ||
} | ||
rename($pdf_path.'.signed.pdf', $pdf_path); | ||
} | ||
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public function verify($pdf_path) { | ||
$signatures = []; | ||
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putenv('NSSPASS='.$this->nss_password); | ||
exec('pdfsig -nssdir "'.$this->nss_directory.'" -nss-pwd "$NSSPASS" '.$pdf_path.' 2>&1', $output, $returnCode); | ||
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if ($returnCode && !preg_match('/does not contain any signatures/', $output[0])) { | ||
throw new Exception('pdfsign error: '.implode(' ', $output)); | ||
} | ||
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$index = null; | ||
foreach($output as $l) { | ||
if (preg_match('/^(Signature[^:]*):/', $l, $m)) { | ||
$index = $m[1]; | ||
$signatures[$index] = []; | ||
continue; | ||
} | ||
if (preg_match('/^ - ([^:]*):(.*)/', $l, $m)) { | ||
$signatures[$index][$m[1]] = $m[2]; | ||
}elseif (preg_match('/^ - (.*) (document signed)/', $l, $m)) { | ||
$signatures[$index]["Document signed"] = $m[1]; | ||
} | ||
} | ||
return $signatures; | ||
} | ||
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public function isEnabled() { | ||
if (!$this->nss_directory || !$this->nss_nick) { | ||
return false; | ||
} | ||
return true; | ||
} | ||
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public function isPDFSigConfigured() { | ||
if (!$this->isEnabled()) { | ||
return false; | ||
} | ||
if (!$this->isPDFSigInstalled()) { | ||
return false; | ||
} | ||
if (!$this->isCertUtilInstalled()) { | ||
return false; | ||
} | ||
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$file = tempnam('/tmp', 'certutil'); | ||
file_put_contents($file, $this->nss_password); | ||
exec('certutil -f '.$file.' -d '.$this->nss_directory.' -L -n "'.$this->nss_nick.'" 2>&1', $output, $returnCodeL); | ||
exec('certutil -f '.$file.' -d '.$this->nss_directory.' -K | grep ":'.$this->nss_nick.'" 2>&1', $output, $returnCodeK); | ||
unlink($file); | ||
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return ($returnCodeL == 0 && $returnCodeK == 0); | ||
} | ||
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public static function isCertUtilInstalled() { | ||
$output = null; | ||
$returnCode = null; | ||
exec('certutil -v 2>&1', $output, $returnCode); | ||
if ($returnCode != 1) { | ||
return false; | ||
} | ||
return "OK"; | ||
} | ||
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public static function isPDFSigInstalled() { | ||
$output = null; | ||
$returnCode = null; | ||
exec('pdfsig -v 2>&1', $output, $returnCode); | ||
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if ($returnCode != 0) { | ||
return false; | ||
} | ||
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$version = explode(' ', $output[0])[2]; | ||
if (! $version >= "21") { | ||
return false; | ||
} | ||
return $version; | ||
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} | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,46 @@ | ||
#!/bin/bash | ||
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nss_dir=$1 | ||
nss_pass=$2 | ||
nss_nick=$3 | ||
signaturepdf_url=$4 | ||
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if ! test "$signaturepdf_url"; then | ||
echo "Usage:" | ||
echo "\t$0 <nss_dir> <nss_pass> <nss_nick> <signaturepdf_url>"; | ||
exit 1: | ||
fi | ||
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if ! test -d "$nss_dir"; then | ||
echo "ERROR: nss_dir \"$nss_dir\" should exist"; | ||
exit 2; | ||
fi | ||
if echo "$nss_nick" | grep '\.' > /dev/null ; then | ||
echo "ERROR: $nss_nick should not contain . "; | ||
exit 3; | ||
fi | ||
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signaturepdf_domain=$(echo $signaturepdf_url | sed 's/https*:\/\///' | sed 's/\/.*//') | ||
signaturepdf_path=$(echo $signaturepdf_url | sed 's/https*:\/\///' | sed 's/.*'$signaturepdf_domain'\/*//') | ||
signaturepdf_dc=$(echo $signaturepdf_domain | tr '.' '\n' | sed 's/^/DC=/' | tr '\n' ',' | sed 's/,$//') | ||
if test "$signaturepdf_path"; then | ||
signaturepdf_dc="DC=/"$signaturepdf_path','$signaturepdf_dc; | ||
fi | ||
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echo "$nss_pass" > /tmp/nss.$$.tmp | ||
certutil -N -f /tmp/nss.$$.tmp -d "$nss_dir" | ||
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echo $RANDOM" CACert "$(date)" $$ "$RANDOM | shasum > /tmp/nss_noise.$$.tmp | ||
certutil -S -s "CN=PDF Sign CA Cert,$signaturepdf_dc" -n "PDFSignCA" -z /tmp/nss_noise.$$.tmp -x -t "CT,CT,CT" -v 120 -m 1234 -d "$nss_dir" -f /tmp/nss.$$.tmp | ||
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echo $RANDOM" $signaturepdf_dc "$(date)" $$ "$RANDOM | shasum >> /tmp/nss_noise.$$.tmp | ||
certutil -S -s "CN=$nss_nick,$signaturepdf_dc" -n "$nss_nick" -c "PDFSignCA" -z /tmp/nss_noise.$$.tmp -t ",," -m 730 -d "$nss_dir" -f /tmp/nss.$$.tmp | ||
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echo "Certs created :" | ||
echo "===============" | ||
certutil -f /tmp/nss.$$.tmp -d $nss_dir -L | ||
echo "Private keys created :" | ||
echo "======================" | ||
certutil -f /tmp/nss.$$.tmp -d $nss_dir -K | ||
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rm /tmp/nss.$$.tmp /tmp/nss_noise.$$.tmp |