136 lines
4.1 KiB
PHP
136 lines
4.1 KiB
PHP
<?php
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namespace Objects;
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class GpgKey extends ApiObject {
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const GPG2 = "/usr/bin/gpg2";
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private int $id;
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private bool $confirmed;
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private string $fingerprint;
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private string $algorithm;
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private \DateTime $expires;
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public function __construct(int $id, bool $confirmed, string $fingerprint, string $algorithm, string $expires) {
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$this->id = $id;
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$this->confirmed = $confirmed;
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$this->fingerprint = $fingerprint;
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$this->algorithm = $algorithm;
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$this->expires = new \DateTime($expires);
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}
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public static function encrypt(string $body, string $gpgFingerprint): array {
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$gpgFingerprint = escapeshellarg($gpgFingerprint);
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$cmd = self::GPG2 . " --encrypt --output - --recipient $gpgFingerprint --trust-model always --batch --armor";
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list($out, $err) = self::proc_exec($cmd, $body, true);
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if ($out === null) {
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return self::createError("Error while communicating with GPG agent");
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} else if ($err) {
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return self::createError($err);
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} else {
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return ["success" => true, "data" => $out];
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}
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}
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public function jsonSerialize(): array {
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return array(
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"fingerprint" => $this->fingerprint,
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"algorithm" => $this->algorithm,
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"expires" => $this->expires->getTimestamp(),
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"confirmed" => $this->confirmed
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);
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}
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private static function proc_exec(string $cmd, ?string $stdin = null, bool $raw = false): ?array {
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$descriptorSpec = array(0 => ["pipe", "r"], 1 => ["pipe", "w"], 2 => ["pipe", "w"]);
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$process = proc_open($cmd, $descriptorSpec,$pipes);
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if (!is_resource($process)) {
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return null;
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}
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if ($stdin) {
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fwrite($pipes[0], $stdin);
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fclose($pipes[0]);
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}
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$out = stream_get_contents($pipes[1]);
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$err = stream_get_contents($pipes[2]);
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fclose($pipes[1]);
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fclose($pipes[2]);
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proc_close($process);
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return [($raw ? $out : trim($out)), $err];
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}
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private static function createError(string $error) : array {
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return ["success" => false, "error" => $error];
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}
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public static function getKeyInfo(string $key): array {
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list($out, $err) = self::proc_exec(self::GPG2 . " --show-key", $key);
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if ($out === null) {
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return self::createError("Error while communicating with GPG agent");
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}
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if ($err) {
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return self::createError($err);
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}
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$lines = explode("\n", $out);
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if (count($lines) > 4) {
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return self::createError("It seems like you have uploaded more than one GPG-Key");
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} else if (count($lines) !== 4 || !preg_match("/(\S+)\s+(\w+)\s+.*\[expires: ([0-9-]+)]/", $lines[0], $matches)) {
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return self::createError("Error parsing GPG output");
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}
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$keyType = $matches[1];
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$keyAlg = $matches[2];
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$expires = \DateTime::createFromFormat("Y-m-d", $matches[3]);
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$fingerprint = trim($lines[1]);
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$keyData = ["type" => $keyType, "algorithm" => $keyAlg, "expires" => $expires, "fingerprint" => $fingerprint];
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return ["success" => true, "data" => $keyData];
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}
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public static function importKey(string $key): array {
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list($out, $err) = self::proc_exec(self::GPG2 . " --import", $key);
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if ($out === null) {
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return self::createError("Error while communicating with GPG agent");
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}
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if (preg_match("/gpg:\s+Total number processed:\s+(\d+)/", $err, $matches) && intval($matches[1]) > 0) {
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if ((preg_match("/.*\s+unchanged:\s+(\d+)/", $err, $matches) && intval($matches[1]) > 0) ||
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(preg_match("/.*\s+imported:\s+(\d+)/", $err, $matches) && intval($matches[1]) > 0)) {
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return ["success" => true];
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}
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}
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return self::createError($err);
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}
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public static function export($gpgFingerprint, bool $armored): array {
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$cmd = self::GPG2 . " --export ";
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if ($armored) {
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$cmd .= "--armor ";
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}
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$cmd .= escapeshellarg($gpgFingerprint);
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list($out, $err) = self::proc_exec($cmd);
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if ($err) {
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return self::createError($err);
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}
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return ["success" => true, "data" => $out];
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}
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public function isConfirmed(): bool {
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return $this->confirmed;
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}
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public function getId(): int {
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return $this->id;
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}
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public function getFingerprint(): string {
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return $this->fingerprint;
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}
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} |