mirror of https://github.com/MISP/MISP
65 lines
2.4 KiB
PHP
65 lines
2.4 KiB
PHP
<?php
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class CryptGpgExtended extends Crypt_GPG
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{
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/**
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* Export the smallest public key possible from the keyring.
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*
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* This removes all signatures except the most recent self-signature on each user ID. This option is the same as
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* running the --edit-key command "minimize" before export except that the local copy of the key is not modified.
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*
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* The exported key remains on the keyring. To delete the public key, use
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* {@link Crypt_GPG::deletePublicKey()}.
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*
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* If more than one key fingerprint is available for the specified
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* <kbd>$keyId</kbd> (for example, if you use a non-unique uid) only the
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* first public key is exported.
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*
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* @param string $keyId either the full uid of the public key, the email
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* part of the uid of the public key or the key id of
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* the public key. For example,
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* "Test User (example) <test@example.com>",
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* "test@example.com" or a hexadecimal string.
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* @param boolean $armor optional. If true, ASCII armored data is returned;
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* otherwise, binary data is returned. Defaults to
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* true.
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*
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* @return string the public key data.
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*
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* @throws Crypt_GPG_KeyNotFoundException if a public key with the given
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* <kbd>$keyId</kbd> is not found.
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*
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* @throws Crypt_GPG_Exception if an unknown or unexpected error occurs.
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* Use the <kbd>debug</kbd> option and file a bug report if these
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* exceptions occur.
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*/
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public function exportPublicKeyMinimal($keyId, $armor = true)
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{
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$fingerprint = $this->getFingerprint($keyId);
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if ($fingerprint === null) {
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throw new Crypt_GPG_KeyNotFoundException(
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'Key not found: ' . $keyId,
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self::ERROR_KEY_NOT_FOUND,
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$keyId
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);
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}
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$keyData = '';
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$operation = '--export';
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$operation .= ' ' . escapeshellarg($fingerprint);
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$arguments = array('--export-options', 'export-minimal');
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if ($armor) {
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$arguments[] = '--armor';
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}
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$this->engine->reset();
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$this->engine->setPins($this->passphrases);
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$this->engine->setOutput($keyData);
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$this->engine->setOperation($operation, $arguments);
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$this->engine->run();
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return $keyData;
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}
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}
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