Add controllers/search/edit engine functionality to RepositoryIdentity

Summary: Depends on D19423. Ref T12164. Adds controllers capable of listing and editing `PhabricatorRepositoryIdentity` objects. Starts creating those objects when commits are parsed.

Test Plan: Reparsed some revisions, observed objects getting created in the database. Altered some `Identity` objects using the controllers and observed effects in the database. No attempts made to validate behavior under "challenging" author/committer strings.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin, PHID-OPKG-gm6ozazyms6q6i22gyam

Maniphest Tasks: T12164

Differential Revision: https://secure.phabricator.com/D19429

src/applications/diffusion/controller/DiffusionIdentityEditController.php

@@ -0,0 +1,12 @@
+<?php
+
+final class DiffusionIdentityEditController
+  extends DiffusionController {
+
+  public function handleRequest(AphrontRequest $request) {
+    return id(new PhabricatorRepositoryIdentityEditEngine())
+      ->setController($this)
+      ->buildResponse();
+  }
+
+}

src/applications/diffusion/controller/DiffusionIdentityListController.php

@@ -0,0 +1,22 @@
+<?php
+
+final class DiffusionIdentityListController
+  extends DiffusionController {
+
+  public function handleRequest(AphrontRequest $request) {
+    return id(new DiffusionRepositoryIdentitySearchEngine())
+      ->setController($this)
+      ->buildResponse();
+  }
+
+  protected function buildApplicationCrumbs() {
+    $crumbs = parent::buildApplicationCrumbs();
+
+    id(new PhabricatorRepositoryIdentityEditEngine())
+      ->setViewer($this->getViewer())
+      ->addActionToCrumbs($crumbs);
+
+    return $crumbs;
+  }
+
+}

src/applications/diffusion/controller/DiffusionIdentityViewController.php

@@ -0,0 +1,123 @@
+<?php
+
+final class DiffusionIdentityViewController
+  extends DiffusionController {
+
+  public function handleRequest(AphrontRequest $request) {
+    $viewer = $request->getViewer();
+
+    $id = $request->getURIData('id');
+    $identity = id(new PhabricatorRepositoryIdentityQuery())
+      ->setViewer($viewer)
+      ->withIDs(array($id))
+      ->executeOne();
+    if (!$identity) {
+      return new Aphront404Response();
+    }
+
+    $title = pht('Identity %d', $identity->getID());
+
+    $curtain = $this->buildCurtain($identity);
+
+    $header = id(new PHUIHeaderView())
+      ->setUser($viewer)
+      ->setHeader($identity->getIdentityShortName())
+      ->setHeaderIcon('fa-globe')
+      ->setPolicyObject($identity);
+
+    $crumbs = $this->buildApplicationCrumbs();
+    $crumbs->addTextCrumb($identity->getID());
+    $crumbs->setBorder(true);
+
+    $timeline = $this->buildTransactionTimeline(
+      $identity,
+      new PhabricatorRepositoryIdentityTransactionQuery());
+    $timeline->setShouldTerminate(true);
+
+    $properties = $this->buildPropertyList($identity);
+
+    $view = id(new PHUITwoColumnView())
+      ->setHeader($header)
+      ->setCurtain($curtain)
+      ->setMainColumn(array(
+          $properties,
+          $timeline,
+        ));
+
+    return $this->newPage()
+      ->setTitle($title)
+      ->setCrumbs($crumbs)
+      ->appendChild(
+        array(
+          $view,
+      ));
+  }
+
+  private function buildCurtain(PhabricatorRepositoryIdentity $identity) {
+    $viewer = $this->getViewer();
+
+    $can_edit = PhabricatorPolicyFilter::hasCapability(
+      $viewer,
+      $identity,
+      PhabricatorPolicyCapability::CAN_EDIT);
+
+    $id = $identity->getID();
+    $edit_uri = $this->getApplicationURI("identity/edit/{$id}/");
+
+    $curtain = $this->newCurtainView($identity);
+
+    $curtain->addAction(
+      id(new PhabricatorActionView())
+        ->setIcon('fa-pencil')
+        ->setName(pht('Edit Identity'))
+        ->setHref($edit_uri)
+        ->setWorkflow(!$can_edit)
+        ->setDisabled(!$can_edit));
+
+    return $curtain;
+  }
+
+  private function buildPropertyList(
+    PhabricatorRepositoryIdentity $identity) {
+
+    $viewer = $this->getViewer();
+
+    $properties = id(new PHUIPropertyListView())
+      ->setUser($viewer);
+
+    $effective_phid = $identity->getCurrentEffectiveUserPHID();
+    $automatic_phid = $identity->getAutomaticGuessedUserPHID();
+    $manual_phid = $identity->getManuallySetUserPHID();
+
+    if ($effective_phid) {
+      $tag = id(new PHUITagView())
+        ->setType(PHUITagView::TYPE_SHADE)
+        ->setColor('green')
+        ->setIcon('fa-check')
+        ->setName('Assigned');
+    } else {
+      $tag = id(new PHUITagView())
+        ->setType(PHUITagView::TYPE_SHADE)
+        ->setColor('indigo')
+        ->setIcon('fa-bomb')
+        ->setName('Unassigned');
+    }
+    $properties->addProperty(
+      pht('Effective User'),
+      $viewer->renderHandle($effective_phid));
+    $properties->addProperty(
+      pht('Automatically Detected User'),
+      $viewer->renderHandle($automatic_phid));
+    $properties->addProperty(
+      pht('Manually Set User'),
+      $viewer->renderHandle($manual_phid));
+
+    $header = id(new PHUIHeaderView())
+      ->setHeader(array(pht('Identity Assignments'), $tag));
+
+    return id(new PHUIObjectBoxView())
+      ->setHeader($header)
+      ->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)
+      ->addPropertyList($properties);
+  }
+}