Add auth.querypublickeys to retrieve public keys

Summary:
Fixes T6484. I primarily need this to synchronize device public keys in the Phabricator cluster so the new stuff in T2783 works.

Although, actually, maybe I don't really need it. But I wrote it anyway and it's desirable to have sooner or later.

Test Plan: Ran method.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T6484

Differential Revision: https://secure.phabricator.com/D11163

src/applications/auth/conduit/PhabricatorAuthConduitAPIMethod.php

@@ -0,0 +1,19 @@
+<?php
+
+abstract class PhabricatorAuthConduitAPIMethod extends ConduitAPIMethod {
+
+  final public function getApplication() {
+    return PhabricatorApplication::getByClass(
+      'PhabricatorAuthApplication');
+  }
+
+  public function getMethodStatus() {
+    return self::METHOD_STATUS_UNSTABLE;
+  }
+
+  public function getMethodStatusDescription() {
+    return pht(
+      'These methods are recently introduced and subject to change.');
+  }
+
+}

src/applications/auth/conduit/PhabricatorAuthQueryPublicKeysConduitAPIMethod.php

@@ -0,0 +1,77 @@
+<?php
+
+final class PhabricatorAuthQueryPublicKeysConduitAPIMethod
+  extends PhabricatorAuthConduitAPIMethod {
+
+  public function getAPIMethodName() {
+    return 'auth.querypublickeys';
+  }
+
+  public function getMethodDescription() {
+    return pht('Query public keys.');
+  }
+
+  public function defineParamTypes() {
+    return array(
+      'ids' => 'optional list<id>',
+      'objectPHIDs' => 'optional list<phid>',
+      'keys' => 'optional list<string>',
+    ) + self::getPagerParamTypes();
+  }
+
+  public function defineReturnType() {
+    return 'result-set';
+  }
+
+  public function defineErrorTypes() {
+    return array();
+  }
+
+  protected function execute(ConduitAPIRequest $request) {
+    $viewer = $request->getUser();
+
+    $query = id(new PhabricatorAuthSSHKeyQuery())
+      ->setViewer($viewer);
+
+    $ids = $request->getValue('ids');
+    if ($ids !== null) {
+      $query->withIDs($ids);
+    }
+
+    $object_phids = $request->getValue('objectPHIDs');
+    if ($object_phids !== null) {
+      $query->withObjectPHIDs($object_phids);
+    }
+
+    $keys = $request->getValue('keys');
+    if ($keys !== null) {
+      $key_objects = array();
+      foreach ($keys as $key) {
+        $key_objects[] = PhabricatorAuthSSHPublicKey::newFromRawKey($key);
+      }
+
+      $query->withKeys($key_objects);
+    }
+
+    $pager = $this->newPager($request);
+    $public_keys = $query->executeWithCursorPager($pager);
+
+    $data = array();
+    foreach ($public_keys as $public_key) {
+      $data[] = array(
+        'id' => $public_key->getID(),
+        'name' => $public_key->getName(),
+        'objectPHID' => $public_key->getObjectPHID(),
+        'isTrusted' => (bool)$public_key->getIsTrusted(),
+        'key' => $public_key->getEntireKey(),
+      );
+    }
+
+    $results = array(
+      'data' => $data,
+    );
+
+    return $this->addPagerResults($results, $pager);
+  }
+
+}