279 lines
8.9 KiB
PHP
279 lines
8.9 KiB
PHP
<?php
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namespace Core\API {
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use Core\Objects\Context;
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abstract class GpgKeyAPI extends \Core\API\Request {
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public function __construct(Context $context, bool $externalCall = false, array $params = array()) {
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parent::__construct($context, $externalCall, $params);
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$this->loginRequired = true;
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}
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}
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}
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namespace Core\API\GpgKey {
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use Core\API\GpgKeyAPI;
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use Core\API\Parameter\Parameter;
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use Core\API\Parameter\StringType;
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use Core\API\Template\Render;
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use Core\API\Traits\GpgKeyValidation;
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use Core\Driver\SQL\Condition\Compare;
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use Core\Objects\Context;
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use Core\Objects\DatabaseEntity\GpgKey;
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use Core\Objects\DatabaseEntity\User;
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use Core\Objects\DatabaseEntity\UserToken;
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class Import extends GpgKeyAPI {
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use GpgKeyValidation;
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public function __construct(Context $context, bool $externalCall = false) {
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parent::__construct($context, $externalCall, [
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"publicKey" => new StringType("publicKey")
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]);
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$this->loginRequired = true;
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$this->forbidMethod("GET");
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}
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public function _execute(): bool {
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$currentUser = $this->context->getUser();
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$gpgKey = $currentUser->getGPG();
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if ($gpgKey) {
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return $this->createError("You already added a GPG key to your account.");
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} else if (!$currentUser->getEmail()) {
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return $this->createError("You do not have an e-mail address");
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}
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// fix key first, enforce a newline after
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$keyString = $this->formatKey($this->getParam("publicKey"));
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$keyData = $this->testKey($keyString);
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if ($keyData === false) {
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return false;
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}
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$res = GpgKey::importKey($keyString);
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if (!$res["success"]) {
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return $this->createError($res["error"]);
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}
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$sql = $this->context->getSQL();
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$gpgKey = new GpgKey($keyData["fingerprint"], $keyData["algorithm"], $keyData["expires"]);
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if (!$gpgKey->save($sql)) {
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return $this->createError("Error creating gpg key: " . $sql->getLastError());
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}
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$token = generateRandomString(36);
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$userToken = new UserToken($currentUser, $token, UserToken::TYPE_GPG_CONFIRM, 1);
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if (!$userToken->save($sql)) {
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return $this->createError("Error saving user token: " . $sql->getLastError());
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}
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$validHours = 1;
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$settings = $this->context->getSettings();
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$baseUrl = $settings->getBaseUrl();
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$siteName = $settings->getSiteName();
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$req = new Render($this->context);
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$this->success = $req->execute([
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"file" => "mail/gpg_import.twig",
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"parameters" => [
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"link" => "$baseUrl/confirmGPG?token=$token",
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"site_name" => $siteName,
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"base_url" => $baseUrl,
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"username" => $currentUser->getDisplayName(),
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"valid_time" => $this->formatDuration($validHours, "hour")
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]
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]);
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$this->lastError = $req->getLastError();
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if ($this->success) {
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$messageBody = $req->getResult()["html"];
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$sendMail = new \Core\API\Mail\Send($this->context);
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$this->success = $sendMail->execute(array(
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"to" => $currentUser->getEmail(),
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"subject" => "[$siteName] Confirm GPG-Key",
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"body" => $messageBody,
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"gpgFingerprint" => $gpgKey->getFingerprint()
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));
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$this->lastError = $sendMail->getLastError();
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if ($this->success) {
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$currentUser->gpgKey = $gpgKey;
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if ($currentUser->save($sql, ["gpgKey"])) {
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$this->result["gpgKey"] = $gpgKey->jsonSerialize();
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} else {
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return $this->createError("Error updating user details: " . $sql->getLastError());
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}
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}
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}
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return $this->success;
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}
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public static function getDescription(): string {
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return "Allows users to import gpg keys for a secure e-mail communication";
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}
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}
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class Remove extends GpgKeyAPI {
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public function __construct(Context $context, bool $externalCall = false) {
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parent::__construct($context, $externalCall, array(
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"password" => new StringType("password")
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));
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$this->loginRequired = true;
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$this->forbidMethod("GET");
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}
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public function _execute(): bool {
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$currentUser = $this->context->getUser();
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$gpgKey = $currentUser->getGPG();
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if (!$gpgKey) {
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return $this->createError("You have not added a GPG public key to your account yet.");
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}
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$sql = $this->context->getSQL();
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$password = $this->getParam("password");
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if (!password_verify($password, $currentUser->password)) {
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return $this->createError("Incorrect password.");
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} else if (!$gpgKey->delete($sql)) {
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return $this->createError("Error deleting gpg key: " . $sql->getLastError());
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}
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return $this->success;
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}
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public static function getDescription(): string {
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return "Allows users to unlink gpg keys from their profile";
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}
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}
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class Confirm extends GpgKeyAPI {
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public function __construct(Context $context, bool $externalCall = false) {
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parent::__construct($context, $externalCall, [
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"token" => new StringType("token", 36)
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]);
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$this->loginRequired = true;
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}
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public function _execute(): bool {
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$currentUser = $this->context->getUser();
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$gpgKey = $currentUser->getGPG();
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if (!$gpgKey) {
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return $this->createError("You have not added a GPG key yet");
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} else if ($gpgKey->isConfirmed()) {
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return $this->createError("Your GPG key is already confirmed");
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}
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$token = $this->getParam("token");
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$sql = $this->context->getSQL();
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$userToken = UserToken::findBy(UserToken::createBuilder($sql, true)
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->whereEq("token", hash("sha512", $token, false))
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->where(new Compare("valid_until", $sql->now(), ">="))
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->whereEq("user_id", $currentUser->getId())
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->whereEq("token_type", UserToken::TYPE_GPG_CONFIRM));
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if ($userToken !== false) {
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if ($userToken === null) {
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return $this->createError("Invalid token");
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} else {
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if (!$gpgKey->confirm($sql)) {
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return $this->createError("Error updating GPG key: " . $sql->getLastError());
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}
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$userToken->invalidate($sql);
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}
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} else {
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return $this->createError("Error validating token: " . $sql->getLastError());
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}
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return $this->success;
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}
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public static function getDescription(): string {
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return "Allows users to confirm their imported gpg key";
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}
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}
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class Download extends GpgKeyAPI {
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public function __construct(Context $context, bool $externalCall = false) {
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parent::__construct($context, $externalCall, array(
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"id" => new Parameter("id", Parameter::TYPE_INT, true, null),
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"format" => new StringType("format", 16, true, "ascii")
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));
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$this->loginRequired = true;
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$this->csrfTokenRequired = false;
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}
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public function _execute(): bool {
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$allowedFormats = ["json", "ascii", "gpg"];
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$format = $this->getParam("format");
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if (!in_array($format, $allowedFormats)) {
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return $this->getParam("Invalid requested format. Allowed formats: " . implode(",", $allowedFormats));
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}
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$currentUser = $this->context->getUser();
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$userId = $this->getParam("id");
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if ($userId === null || $userId == $currentUser->getId()) {
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$gpgKey = $currentUser->getGPG();
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if (!$gpgKey) {
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return $this->createError("You did not add a gpg key yet.");
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}
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$email = $currentUser->getEmail();
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} else {
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$sql = $this->context->getSQL();
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$user = User::find($sql, $userId, true);
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if ($user === false) {
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return $this->createError("Error fetching user details: " . $sql->getLastError());
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} else if ($user === null) {
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return $this->createError("User not found");
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}
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$email = $user->getEmail();
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$gpgKey = $user->getGPG();
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if (!$gpgKey || !$gpgKey->isConfirmed()) {
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return $this->createError("This user has not added a gpg key yet or has not confirmed it yet.");
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}
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}
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$res = GpgKey::export($gpgKey->getFingerprint(), $format !== "gpg");
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if (!$res["success"]) {
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return $this->createError($res["error"]);
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}
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$key = $res["data"];
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if ($format === "json") {
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$this->result["key"] = $key;
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return true;
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} else if ($format === "ascii") {
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$contentType = "application/pgp-keys";
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$ext = "asc";
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} else if ($format === "gpg") {
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$contentType = "application/octet-stream";
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$ext = "gpg";
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} else {
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die("Invalid format");
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}
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$fileName = "$email.$ext";
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header("Content-Type: $contentType");
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header("Content-Length: " . strlen($key));
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header("Content-Disposition: attachment; filename=\"$fileName\"");
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die($key);
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}
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public static function getDescription(): string {
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return "Allows users to download any gpg public key";
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}
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}
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}
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