Remove Chatlog entirely

Summary:
This commit removes ChatLog entirely. All of the application files are removed, and the migrations used are stubbed out. I stubbed the migrations as that allows for existing installs to make no changes, but new installs will not create the database.

Fixes T15126

Test Plan: Loaded up http://phorge.local/chatlog and confirmed the 404. Loaded up http://phorge.local/applications/view/PhabricatorChatLogApplication and confirmed the 404. Created a new database prefix and ran `bin/storage upgrade` against it, confirmed that the chatlog database was not created. Restored another prefix (an old one) and ran `bin/storage upgrade` and confirmed database was not deleted.

Reviewers: O1 Blessed Committers, avivey

Reviewed By: O1 Blessed Committers, avivey

Subscribers: avivey, tobiaswiese, valerio.bozzolan, Cigaryno

Maniphest Tasks: T15126

Differential Revision: https://we.phorge.it/D25480

resources/celerity/map.php

···
     'rsrc/css/application/base/notification-menu.css' => '4df1ee30',
     'rsrc/css/application/base/phui-theme.css' => '35883b37',
     'rsrc/css/application/base/standard-page-view.css' => 'e08c7462',
-    'rsrc/css/application/chatlog/chatlog.css' => 'abdc76ee',
     'rsrc/css/application/conduit/conduit-api.css' => 'ce2cfc41',
     'rsrc/css/application/config/config-options.css' => '16c920ae',
     'rsrc/css/application/config/config-template.css' => 'e689dbbd',
···
     'people-profile-css' => '2ea2daa1',
     'phabricator-action-list-view-css' => '1b0085b2',
     'phabricator-busy' => '5202e831',
-    'phabricator-chatlog-css' => 'abdc76ee',
     'phabricator-content-source-view-css' => 'cdf0d579',
     'phabricator-core-css' => 'b3a5928e',
     'phabricator-countdown-css' => 'bff8012f',

resources/sql/autopatches/20140722.appname.php

···
   'Audit',
   'Auth',
   'Calendar',
-  'ChatLog',
   'Conduit',
   'Config',
   'Conpherence',

resources/sql/patches/106.chatlog.sql

···
-CREATE TABLE {$NAMESPACE}_chatlog.chatlog_event (
-  id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
-  channel VARCHAR(64) BINARY NOT NULL,
-  epoch INT UNSIGNED NOT NULL,
-  author VARCHAR(64) BINARY NOT NULL,
-  type VARCHAR(4) NOT NULL,
-  message LONGBLOB NOT NULL,
-  loggedByPHID VARCHAR(64) BINARY NOT NULL,
-  KEY (channel, epoch)
-);
+/* This file is intentionally left empty, see T15126 */

resources/sql/patches/116.utf8-backup-first-expect-wait.sql

···
 
 
 
-ALTER DATABASE `{$NAMESPACE}_chatlog` COLLATE utf8_general_ci;
-
-ALTER TABLE `{$NAMESPACE}_chatlog`.`chatlog_event`
-  MODIFY `channel` varchar(64) CHARACTER SET binary,
-  MODIFY `author` varchar(64) CHARACTER SET binary,
-  MODIFY `type` varchar(4) CHARACTER SET binary,
-  MODIFY `message` longtext CHARACTER SET binary,
-  MODIFY `loggedByPHID` varchar(64) CHARACTER SET binary;
-ALTER TABLE `{$NAMESPACE}_chatlog`.`chatlog_event`
-  COLLATE utf8_general_ci,
-  MODIFY `channel` varchar(64) COLLATE utf8_bin NOT NULL,
-  MODIFY `author` varchar(64) COLLATE utf8_bin NOT NULL,
-  MODIFY `type` varchar(4) COLLATE utf8_general_ci NOT NULL,
-  MODIFY `message` longtext COLLATE utf8_bin NOT NULL,
-  MODIFY `loggedByPHID` varchar(64) COLLATE utf8_bin NOT NULL;
-
-
-
 ALTER DATABASE `{$NAMESPACE}_conduit` COLLATE utf8_general_ci;
 
 ALTER TABLE `{$NAMESPACE}_conduit`.`conduit_certificatetoken`

resources/sql/patches/20130214.chatlogchannel.sql

···
-CREATE TABLE {$NAMESPACE}_chatlog.chatlog_channel (
-  id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
-  serviceName VARCHAR(64) COLLATE utf8_bin NOT NULL,
-  serviceType VARCHAR(32) COLLATE utf8_bin NOT NULL,
-  channelName VARCHAR(64) COLLATE utf8_bin NOT NULL,
-  viewPolicy VARCHAR(64) COLLATE utf8_bin NOT NULL,
-  editPolicy VARCHAR(64) COLLATE utf8_bin NOT NULL,
-  dateCreated INT UNSIGNED NOT NULL,
-  dateModified INT UNSIGNED NOT NULL,
-  UNIQUE KEY `key_channel` (channelName, serviceType, serviceName)
-)ENGINE=InnoDB DEFAULT CHARSET=utf8;
+/* This file is intentionally left empty, see T15126 */

resources/sql/patches/20130214.chatlogchannelid.sql

···
-ALTER TABLE `{$NAMESPACE}_chatlog`.`chatlog_event`
-  ADD `channelID` INT UNSIGNED NOT NULL;
+/* This file is intentionally left empty, see T15126 */

resources/sql/patches/20130218.updatechannelid.php

···
 <?php
 
-echo pht('Updating channel IDs of previous chatlog events...')."\n";
-$event_table = new PhabricatorChatLogEvent();
-$channel_table = new PhabricatorChatLogChannel();
-
-$event_table->openTransaction();
-$channel_table->openTransaction();
-
-$event_table->beginReadLocking();
-$channel_table->beginReadLocking();
-
-$events = new LiskMigrationIterator($event_table);
-$conn_w = $channel_table->establishConnection('w');
-
-foreach ($events as $event) {
-  if ($event->getChannelID()) {
-    continue;
-  }
-
-  $event_row = queryfx_one(
-    $conn_w,
-    'SELECT channel FROM %T WHERE id = %d',
-    $event->getTableName(),
-    $event->getID());
-  $event_channel = $event_row['channel'];
-
-  $matched = queryfx_one(
-    $conn_w,
-    'SELECT * FROM %T WHERE
-      channelName = %s AND serviceName = %s AND serviceType = %s',
-    $channel_table->getTableName(),
-    $event_channel,
-    '',
-    '');
-
-  if (!$matched) {
-    $matched = id(new PhabricatorChatLogChannel())
-      ->setChannelName($event_channel)
-      ->setServiceType('')
-      ->setServiceName('')
-      ->setViewPolicy(PhabricatorPolicies::POLICY_USER)
-      ->setEditPolicy(PhabricatorPolicies::POLICY_USER)
-      ->save();
-    $matched_id = $matched->getID();
-  } else {
-    $matched_id = $matched['id'];
-  }
-
-  queryfx(
-    $event->establishConnection('w'),
-    'UPDATE %T SET channelID = %d WHERE id = %d',
-    $event->getTableName(),
-    $matched_id,
-    $event->getID());
-}
-
-$event_table->endReadLocking();
-$channel_table->endReadLocking();
-
-$event_table->saveTransaction();
-$channel_table->saveTransaction();
-
-echo "\n".pht('Done.')."\n";
+/* This file is intentionally left empty, see T15126 */

resources/sql/patches/20130222.dropchannel.sql

···
-ALTER TABLE `{$NAMESPACE}_chatlog`.`chatlog_event`
-  DROP channel;
+/* This file is intentionally left empty, see T15126 */

resources/sql/quickstart.sql

···
   PRIMARY KEY (`id`)
 ) ENGINE=InnoDB DEFAULT CHARSET={$CHARSET} COLLATE={$COLLATE_TEXT};
 
-CREATE DATABASE /*!32312 IF NOT EXISTS*/ `{$NAMESPACE}_chatlog` /*!40100 DEFAULT CHARACTER SET {$CHARSET} COLLATE {$COLLATE_TEXT} */;
-
-USE `{$NAMESPACE}_chatlog`;
-
- SET NAMES utf8 ;
-
- SET character_set_client = {$CHARSET} ;
-
-CREATE TABLE `chatlog_channel` (
-  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
-  `serviceName` varchar(64) CHARACTER SET {$CHARSET} COLLATE {$COLLATE_TEXT} NOT NULL,
-  `serviceType` varchar(32) CHARACTER SET {$CHARSET} COLLATE {$COLLATE_TEXT} NOT NULL,
-  `channelName` varchar(64) CHARACTER SET {$CHARSET} COLLATE {$COLLATE_TEXT} NOT NULL,
-  `viewPolicy` varbinary(64) NOT NULL,
-  `editPolicy` varbinary(64) NOT NULL,
-  `dateCreated` int(10) unsigned NOT NULL,
-  `dateModified` int(10) unsigned NOT NULL,
-  PRIMARY KEY (`id`),
-  UNIQUE KEY `key_channel` (`channelName`,`serviceType`,`serviceName`)
-) ENGINE=InnoDB DEFAULT CHARSET={$CHARSET} COLLATE={$COLLATE_TEXT};
-
-USE `{$NAMESPACE}_chatlog`;
-
- SET NAMES utf8 ;
-
- SET character_set_client = {$CHARSET} ;
-
-CREATE TABLE `chatlog_event` (
-  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
-  `epoch` int(10) unsigned NOT NULL,
-  `author` varchar(64) CHARACTER SET {$CHARSET} COLLATE {$COLLATE_TEXT} NOT NULL,
-  `type` varchar(4) CHARACTER SET {$CHARSET} COLLATE {$COLLATE_TEXT} NOT NULL,
-  `message` longtext CHARACTER SET {$CHARSET} COLLATE {$COLLATE_TEXT} NOT NULL,
-  `loggedByPHID` varbinary(64) NOT NULL,
-  `channelID` int(10) unsigned NOT NULL,
-  PRIMARY KEY (`id`),
-  KEY `channel` (`epoch`)
-) ENGINE=InnoDB DEFAULT CHARSET={$CHARSET} COLLATE={$COLLATE_TEXT};
-
 CREATE DATABASE /*!32312 IF NOT EXISTS*/ `{$NAMESPACE}_conduit` /*!40100 DEFAULT CHARACTER SET {$CHARSET} COLLATE {$COLLATE_TEXT} */;
 
 USE `{$NAMESPACE}_conduit`;

src/__phutil_library_map__.php

···
     'CelerityResourcesOnDisk' => 'applications/celerity/resources/CelerityResourcesOnDisk.php',
     'CeleritySpriteGenerator' => 'applications/celerity/CeleritySpriteGenerator.php',
     'CelerityStaticResourceResponse' => 'applications/celerity/CelerityStaticResourceResponse.php',
-    'ChatLogConduitAPIMethod' => 'applications/chatlog/conduit/ChatLogConduitAPIMethod.php',
-    'ChatLogQueryConduitAPIMethod' => 'applications/chatlog/conduit/ChatLogQueryConduitAPIMethod.php',
-    'ChatLogRecordConduitAPIMethod' => 'applications/chatlog/conduit/ChatLogRecordConduitAPIMethod.php',
     'ConduitAPIDocumentationPage' => 'applications/conduit/data/ConduitAPIDocumentationPage.php',
     'ConduitAPIMethod' => 'applications/conduit/method/ConduitAPIMethod.php',
     'ConduitAPIMethodTestCase' => 'applications/conduit/method/__tests__/ConduitAPIMethodTestCase.php',
···
     'PhabricatorChartInterval' => 'applications/fact/chart/PhabricatorChartInterval.php',
     'PhabricatorChartRenderingEngine' => 'applications/fact/engine/PhabricatorChartRenderingEngine.php',
     'PhabricatorChartStackedAreaDataset' => 'applications/fact/chart/PhabricatorChartStackedAreaDataset.php',
-    'PhabricatorChatLogApplication' => 'applications/chatlog/application/PhabricatorChatLogApplication.php',
-    'PhabricatorChatLogChannel' => 'applications/chatlog/storage/PhabricatorChatLogChannel.php',
-    'PhabricatorChatLogChannelListController' => 'applications/chatlog/controller/PhabricatorChatLogChannelListController.php',
-    'PhabricatorChatLogChannelLogController' => 'applications/chatlog/controller/PhabricatorChatLogChannelLogController.php',
-    'PhabricatorChatLogChannelQuery' => 'applications/chatlog/query/PhabricatorChatLogChannelQuery.php',
-    'PhabricatorChatLogController' => 'applications/chatlog/controller/PhabricatorChatLogController.php',
-    'PhabricatorChatLogDAO' => 'applications/chatlog/storage/PhabricatorChatLogDAO.php',
-    'PhabricatorChatLogEvent' => 'applications/chatlog/storage/PhabricatorChatLogEvent.php',
-    'PhabricatorChatLogQuery' => 'applications/chatlog/query/PhabricatorChatLogQuery.php',
     'PhabricatorCheckboxesEditField' => 'applications/transactions/editfield/PhabricatorCheckboxesEditField.php',
     'PhabricatorChunkedFileStorageEngine' => 'applications/files/engine/PhabricatorChunkedFileStorageEngine.php',
     'PhabricatorClassConfigType' => 'applications/config/type/PhabricatorClassConfigType.php',
···
     'CelerityResourcesOnDisk' => 'CelerityPhysicalResources',
     'CeleritySpriteGenerator' => 'Phobject',
     'CelerityStaticResourceResponse' => 'Phobject',
-    'ChatLogConduitAPIMethod' => 'ConduitAPIMethod',
-    'ChatLogQueryConduitAPIMethod' => 'ChatLogConduitAPIMethod',
-    'ChatLogRecordConduitAPIMethod' => 'ChatLogConduitAPIMethod',
     'ConduitAPIDocumentationPage' => 'Phobject',
     'ConduitAPIMethod' => array(
       'Phobject',
···
     'PhabricatorChartInterval' => 'Phobject',
     'PhabricatorChartRenderingEngine' => 'Phobject',
     'PhabricatorChartStackedAreaDataset' => 'PhabricatorChartDataset',
-    'PhabricatorChatLogApplication' => 'PhabricatorApplication',
-    'PhabricatorChatLogChannel' => array(
-      'PhabricatorChatLogDAO',
-      'PhabricatorPolicyInterface',
-    ),
-    'PhabricatorChatLogChannelListController' => 'PhabricatorChatLogController',
-    'PhabricatorChatLogChannelLogController' => 'PhabricatorChatLogController',
-    'PhabricatorChatLogChannelQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
-    'PhabricatorChatLogController' => 'PhabricatorController',
-    'PhabricatorChatLogDAO' => 'PhabricatorLiskDAO',
-    'PhabricatorChatLogEvent' => array(
-      'PhabricatorChatLogDAO',
-      'PhabricatorPolicyInterface',
-    ),
-    'PhabricatorChatLogQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
     'PhabricatorCheckboxesEditField' => 'PhabricatorEditField',
     'PhabricatorChunkedFileStorageEngine' => 'PhabricatorFileStorageEngine',
     'PhabricatorClassConfigType' => 'PhabricatorTextConfigType',

src/applications/chatlog/application/PhabricatorChatLogApplication.php

···
-<?php
-
-final class PhabricatorChatLogApplication extends PhabricatorApplication {
-
-  public function getBaseURI() {
-    return '/chatlog/';
-  }
-
-  public function getName() {
-    return pht('ChatLog');
-  }
-
-  public function getShortDescription() {
-    return pht('IRC Logs');
-  }
-
-  public function getIcon() {
-    return 'fa-coffee';
-  }
-
-  public function isPrototype() {
-    return true;
-  }
-
-  public function isDeprecated() {
-    return true;
-  }
-
-  public function getTitleGlyph() {
-    return "\xE0\xBC\x84";
-  }
-
-  public function getApplicationGroup() {
-    return self::GROUP_UTILITIES;
-  }
-
-  public function getRoutes() {
-    return array(
-      '/chatlog/' => array(
-       '' => 'PhabricatorChatLogChannelListController',
-       'channel/(?P<channelID>[^/]+)/'
-          => 'PhabricatorChatLogChannelLogController',
-       ),
-    );
-  }
-
-}

src/applications/chatlog/conduit/ChatLogConduitAPIMethod.php

···
-<?php
-
-abstract class ChatLogConduitAPIMethod extends ConduitAPIMethod {
-
-  final public function getApplication() {
-    return PhabricatorApplication::getByClass('PhabricatorChatLogApplication');
-  }
-
-}

src/applications/chatlog/conduit/ChatLogQueryConduitAPIMethod.php

···
-<?php
-
-final class ChatLogQueryConduitAPIMethod extends ChatLogConduitAPIMethod {
-
-  public function getAPIMethodName() {
-    return 'chatlog.query';
-  }
-
-  public function getMethodStatus() {
-    return self::METHOD_STATUS_UNSTABLE;
-  }
-
-  public function getMethodDescription() {
-    return pht('Retrieve chatter.');
-  }
-
-  protected function defineParamTypes() {
-    return array(
-      'channels' => 'optional list<string>',
-      'limit'    => 'optional int (default = 100)',
-    );
-  }
-
-  protected function defineReturnType() {
-    return 'nonempty list<dict>';
-  }
-
-  protected function execute(ConduitAPIRequest $request) {
-    $query = new PhabricatorChatLogQuery();
-
-    $channel_ids = $request->getValue('channelIDs');
-    if ($channel_ids) {
-      $query->withChannelIDs($channel_ids);
-    }
-
-    $limit = $request->getValue('limit');
-    if (!$limit) {
-      $limit = 100;
-    }
-    $query->setLimit($limit);
-
-    $logs = $query->execute();
-
-    $results = array();
-    foreach ($logs as $log) {
-      $results[] = array(
-        'channelID'       => $log->getChannelID(),
-        'epoch'           => $log->getEpoch(),
-        'author'          => $log->getAuthor(),
-        'type'            => $log->getType(),
-        'message'         => $log->getMessage(),
-        'loggedByPHID'    => $log->getLoggedByPHID(),
-      );
-    }
-
-    return $results;
-  }
-
-}

src/applications/chatlog/conduit/ChatLogRecordConduitAPIMethod.php

···
-<?php
-
-final class ChatLogRecordConduitAPIMethod extends ChatLogConduitAPIMethod {
-
-  public function getAPIMethodName() {
-    return 'chatlog.record';
-  }
-
-  public function getMethodStatus() {
-    return self::METHOD_STATUS_UNSTABLE;
-  }
-
-  public function getMethodDescription() {
-    return pht('Record chatter.');
-  }
-
-  protected function defineParamTypes() {
-    return array(
-      'logs' => 'required list<dict>',
-    );
-  }
-
-  protected function defineReturnType() {
-    return 'list<id>';
-  }
-
-  protected function execute(ConduitAPIRequest $request) {
-    $logs = $request->getValue('logs');
-    if (!is_array($logs)) {
-      $logs = array();
-    }
-
-    $template = new PhabricatorChatLogEvent();
-    $template->setLoggedByPHID($request->getUser()->getPHID());
-
-    $objs = array();
-    foreach ($logs as $log) {
-      $channel_name = idx($log, 'channel');
-      $service_name = idx($log, 'serviceName');
-      $service_type = idx($log, 'serviceType');
-
-      $channel = id(new PhabricatorChatLogChannel())->loadOneWhere(
-        'channelName = %s AND serviceName = %s AND serviceType = %s',
-        $channel_name,
-        $service_name,
-        $service_type);
-
-      if (!$channel) {
-        $channel = id(new PhabricatorChatLogChannel())
-          ->setChannelName($channel_name)
-          ->setserviceName($service_name)
-          ->setServiceType($service_type)
-          ->setViewPolicy(PhabricatorPolicies::POLICY_USER)
-          ->setEditPolicy(PhabricatorPolicies::POLICY_USER)
-          ->save();
-      }
-
-      $obj = clone $template;
-      $obj->setChannelID($channel->getID());
-      $obj->setType(idx($log, 'type'));
-      $obj->setAuthor(idx($log, 'author'));
-      $obj->setEpoch(idx($log, 'epoch'));
-      $obj->setMessage(idx($log, 'message'));
-      $obj->save();
-
-      $objs[] = $obj;
-    }
-
-    return array_values(mpull($objs, 'getID'));
-  }
-
-}

src/applications/chatlog/controller/PhabricatorChatLogChannelListController.php

···
-<?php
-
-final class PhabricatorChatLogChannelListController
-  extends PhabricatorChatLogController {
-
-  public function shouldAllowPublic() {
-    return true;
-  }
-
-  public function handleRequest(AphrontRequest $request) {
-    $viewer = $request->getViewer();
-
-    $channels = id(new PhabricatorChatLogChannelQuery())
-      ->setViewer($viewer)
-      ->execute();
-
-    $list = new PHUIObjectItemListView();
-    foreach ($channels as $channel) {
-        $item = id(new PHUIObjectItemView())
-          ->setHeader($channel->getChannelName())
-          ->setHref('/chatlog/channel/'.$channel->getID().'/')
-          ->addAttribute($channel->getServiceName())
-          ->addAttribute($channel->getServiceType());
-        $list->addItem($item);
-    }
-
-    $crumbs = $this
-      ->buildApplicationCrumbs()
-      ->addTextCrumb(pht('Channel List'), $this->getApplicationURI());
-
-    $box = id(new PHUIObjectBoxView())
-      ->setHeaderText('Channel List')
-      ->setObjectList($list);
-
-    return $this->newPage()
-      ->setTitle(pht('Channel List'))
-      ->setCrumbs($crumbs)
-      ->appendChild($box);
-
-  }
-}

src/applications/chatlog/controller/PhabricatorChatLogChannelLogController.php

···
-<?php
-
-final class PhabricatorChatLogChannelLogController
-  extends PhabricatorChatLogController {
-
-  public function shouldAllowPublic() {
-    return true;
-  }
-
-  public function handleRequest(AphrontRequest $request) {
-    $viewer = $request->getViewer();
-    $id = $request->getURIData('channelID');
-
-    $uri = new PhutilURI($request->getPath());
-
-    $pager = new AphrontCursorPagerView();
-    $pager->setURI($uri);
-    $pager->setPageSize(250);
-
-    $query = id(new PhabricatorChatLogQuery())
-      ->setViewer($viewer)
-      ->withChannelIDs(array($id));
-
-    $channel = id(new PhabricatorChatLogChannelQuery())
-      ->setViewer($viewer)
-      ->withIDs(array($id))
-      ->executeOne();
-
-    if (!$channel) {
-      return new Aphront404Response();
-    }
-
-    list($after, $before, $map) = $this->getPagingParameters($request, $query);
-
-    $pager->setAfterID($after);
-    $pager->setBeforeID($before);
-
-    $logs = $query->executeWithCursorPager($pager);
-
-    // Show chat logs oldest-first.
-    $logs = array_reverse($logs);
-
-
-    // Divide all the logs into blocks, where a block is the same author saying
-    // several things in a row. A block ends when another user speaks, or when
-    // two minutes pass without the author speaking.
-
-    $blocks = array();
-    $block = null;
-
-    $last_author = null;
-    $last_epoch = null;
-    foreach ($logs as $log) {
-      $this_author = $log->getAuthor();
-      $this_epoch  = $log->getEpoch();
-
-      // Decide whether we should start a new block or not.
-      $new_block = ($this_author !== $last_author) ||
-                   ($this_epoch - (60 * 2) > $last_epoch);
-
-      if ($new_block) {
-        if ($block) {
-          $blocks[] = $block;
-        }
-        $block = array(
-          'id'      => $log->getID(),
-          'epoch'   => $this_epoch,
-          'author'  => $this_author,
-          'logs'    => array($log),
-        );
-      } else {
-        $block['logs'][] = $log;
-      }
-
-      $last_author = $this_author;
-      $last_epoch = $this_epoch;
-    }
-    if ($block) {
-      $blocks[] = $block;
-    }
-
-    // Figure out CSS classes for the blocks. We alternate colors between
-    // lines, and highlight the entire block which contains the target ID or
-    // date, if applicable.
-
-    foreach ($blocks as $key => $block) {
-      $classes = array();
-      if ($key % 2) {
-        $classes[] = 'alternate';
-      }
-      $ids = mpull($block['logs'], 'getID', 'getID');
-      if (array_intersect_key($ids, $map)) {
-        $classes[] = 'highlight';
-      }
-      $blocks[$key]['class'] = $classes ? implode(' ', $classes) : null;
-    }
-
-
-    require_celerity_resource('phabricator-chatlog-css');
-
-    $out = array();
-    foreach ($blocks as $block) {
-      $author = $block['author'];
-      $author = id(new PhutilUTF8StringTruncator())
-        ->setMaximumGlyphs(18)
-        ->truncateString($author);
-      $author = phutil_tag('td', array('class' => 'author'), $author);
-
-      $href = $uri->alter('at', $block['id']);
-      $timestamp = $block['epoch'];
-      $timestamp = phabricator_datetime($timestamp, $viewer);
-      $timestamp = phutil_tag(
-        'a',
-          array(
-            'href' => $href,
-            'class' => 'timestamp',
-          ),
-        $timestamp);
-
-      $message = mpull($block['logs'], 'getMessage');
-      $message = implode("\n", $message);
-      $message = phutil_tag(
-        'td',
-          array(
-            'class' => 'message',
-          ),
-          array(
-            $timestamp,
-            $message,
-          ));
-
-      $out[] = phutil_tag(
-        'tr',
-        array(
-          'class' => $block['class'],
-        ),
-        array(
-          $author,
-          $message,
-        ));
-    }
-
-    $links = array();
-
-    $first_uri = $pager->getFirstPageURI();
-    if ($first_uri) {
-      $links[] = phutil_tag(
-        'a',
-        array(
-          'href' => $first_uri,
-        ),
-        "\xC2\xAB ".pht('Newest'));
-    }
-
-    $prev_uri = $pager->getPrevPageURI();
-    if ($prev_uri) {
-      $links[] = phutil_tag(
-        'a',
-        array(
-          'href' => $prev_uri,
-        ),
-        "\xE2\x80\xB9 ".pht('Newer'));
-    }
-
-    $next_uri = $pager->getNextPageURI();
-    if ($next_uri) {
-      $links[] = phutil_tag(
-        'a',
-        array(
-          'href' => $next_uri,
-        ),
-        pht('Older')." \xE2\x80\xBA");
-    }
-
-    $pager_bottom = phutil_tag(
-      'div',
-      array('class' => 'phabricator-chat-log-pager-bottom'),
-      $links);
-
-    $crumbs = $this
-      ->buildApplicationCrumbs()
-      ->addTextCrumb($channel->getChannelName(), $uri);
-
-    $form = id(new AphrontFormView())
-      ->setUser($viewer)
-      ->setMethod('GET')
-      ->setAction($uri)
-      ->appendChild(
-        id(new AphrontFormTextControl())
-          ->setLabel(pht('Date'))
-          ->setName('date')
-          ->setValue($request->getStr('date')))
-      ->appendChild(
-        id(new AphrontFormSubmitControl())
-          ->setValue(pht('Jump')));
-
-    $table = phutil_tag(
-      'table',
-        array(
-          'class' => 'phabricator-chat-log',
-        ),
-      $out);
-
-    $log = phutil_tag(
-      'div',
-        array(
-          'class' => 'phabricator-chat-log-panel',
-        ),
-        $table);
-
-    $jump_link = id(new PHUIButtonView())
-      ->setTag('a')
-      ->setHref('#latest')
-      ->setText(pht('Jump to Bottom'))
-      ->setIcon('fa-arrow-circle-down');
-
-    $jump_target = phutil_tag(
-      'div',
-        array(
-          'id' => 'latest',
-        ));
-
-    $content = phutil_tag(
-      'div',
-        array(
-          'class' => 'phabricator-chat-log-wrap',
-        ),
-        array(
-          $log,
-          $jump_target,
-          $pager_bottom,
-        ));
-
-    $header = id(new PHUIHeaderView())
-      ->setHeader($channel->getChannelName())
-      ->setSubHeader($channel->getServiceName())
-      ->addActionLink($jump_link);
-
-    $box = id(new PHUIObjectBoxView())
-      ->setHeader($header)
-      ->setCollapsed(true)
-      ->appendChild($content);
-
-    $box->setShowHide(
-      pht('Search Dates'),
-      pht('Hide Dates'),
-      $form,
-      '#');
-
-    return $this->newPage()
-      ->setTitle(pht('Channel Log'))
-      ->setCrumbs($crumbs)
-      ->appendChild($box);
-
-  }
-
-  /**
-   * From request parameters, figure out where we should jump to in the log.
-   * We jump to either a date or log ID, but load a few lines of context before
-   * it so the user can see the nearby conversation.
-   */
-  private function getPagingParameters(
-    AphrontRequest $request,
-    PhabricatorChatLogQuery $query) {
-
-    $viewer = $request->getViewer();
-
-    $at_id = $request->getInt('at');
-    $at_date = $request->getStr('date');
-
-    $context_log = null;
-    $map = array();
-
-    $query = clone $query;
-    $query->setLimit(8);
-
-    if ($at_id) {
-      // Jump to the log in question, and load a few lines of context before
-      // it.
-      $context_logs = $query
-        ->setAfterID($at_id)
-        ->execute();
-
-      $context_log = last($context_logs);
-
-      $map = array(
-        $at_id => true,
-      );
-
-    } else if ($at_date) {
-      $timestamp = PhabricatorTime::parseLocalTime($at_date, $viewer);
-
-      if ($timestamp) {
-        $context_logs = $query
-          ->withMaximumEpoch($timestamp)
-          ->execute();
-
-        $context_log = last($context_logs);
-
-        $target_log = head($context_logs);
-        if ($target_log) {
-          $map = array(
-            $target_log->getID() => true,
-          );
-        }
-      }
-    }
-
-    if ($context_log) {
-      $after = null;
-      $before = $context_log->getID() - 1;
-    } else {
-      $after = $request->getInt('after');
-      $before = $request->getInt('before');
-    }
-
-    return array($after, $before, $map);
-  }
-
-}

src/applications/chatlog/controller/PhabricatorChatLogController.php

···
-<?php
-
-abstract class PhabricatorChatLogController extends PhabricatorController {}

src/applications/chatlog/query/PhabricatorChatLogChannelQuery.php

···
-<?php
-
-final class PhabricatorChatLogChannelQuery
-  extends PhabricatorCursorPagedPolicyAwareQuery {
-
-  private $channels;
-  private $channelIDs;
-
-  public function withChannelNames(array $channels) {
-    $this->channels = $channels;
-    return $this;
-  }
-
-  public function withIDs(array $channel_ids) {
-    $this->channelIDs = $channel_ids;
-    return $this;
-  }
-
-  protected function loadPage() {
-    $table  = new PhabricatorChatLogChannel();
-    $conn_r = $table->establishConnection('r');
-
-    $data = queryfx_all(
-      $conn_r,
-      'SELECT * FROM %T c %Q %Q %Q',
-      $table->getTableName(),
-      $this->buildWhereClause($conn_r),
-      $this->buildOrderClause($conn_r),
-      $this->buildLimitClause($conn_r));
-
-    $logs = $table->loadAllFromArray($data);
-
-    return $logs;
-  }
-
-  protected function buildWhereClause(AphrontDatabaseConnection $conn) {
-    $where = array();
-
-    $where[] = $this->buildPagingClause($conn);
-
-    if ($this->channelIDs) {
-      $where[] = qsprintf(
-        $conn,
-        'id IN (%Ld)',
-        $this->channelIDs);
-
-    }
-
-    if ($this->channels) {
-      $where[] = qsprintf(
-        $conn,
-        'channelName IN (%Ls)',
-        $this->channels);
-    }
-
-    return $this->formatWhereClause($conn, $where);
-  }
-
-  public function getQueryApplicationClass() {
-    return 'PhabricatorChatLogApplication';
-  }
-
-}

src/applications/chatlog/query/PhabricatorChatLogQuery.php

···
-<?php
-
-final class PhabricatorChatLogQuery
-  extends PhabricatorCursorPagedPolicyAwareQuery {
-
-  private $channelIDs;
-  private $maximumEpoch;
-
-  public function withChannelIDs(array $channel_ids) {
-    $this->channelIDs = $channel_ids;
-    return $this;
-  }
-
-  public function withMaximumEpoch($epoch) {
-    $this->maximumEpoch = $epoch;
-    return $this;
-  }
-
-  protected function loadPage() {
-    $table  = new PhabricatorChatLogEvent();
-    $conn_r = $table->establishConnection('r');
-
-    $data = queryfx_all(
-      $conn_r,
-      'SELECT * FROM %T e %Q %Q %Q',
-      $table->getTableName(),
-      $this->buildWhereClause($conn_r),
-      $this->buildOrderClause($conn_r),
-      $this->buildLimitClause($conn_r));
-
-    $logs = $table->loadAllFromArray($data);
-
-    return $logs;
-  }
-
-  protected function willFilterPage(array $events) {
-    $channel_ids = mpull($events, 'getChannelID', 'getChannelID');
-
-    $channels = id(new PhabricatorChatLogChannelQuery())
-      ->setViewer($this->getViewer())
-      ->withIDs($channel_ids)
-      ->execute();
-    $channels = mpull($channels, null, 'getID');
-
-    foreach ($events as $key => $event) {
-      $channel = idx($channels, $event->getChannelID());
-      if (!$channel) {
-        unset($events[$key]);
-        continue;
-      }
-
-      $event->attachChannel($channel);
-    }
-
-    return $events;
-  }
-
-  protected function buildWhereClause(AphrontDatabaseConnection $conn) {
-    $where = array();
-
-    $where[] = $this->buildPagingClause($conn);
-
-    if ($this->maximumEpoch !== null) {
-      $where[] = qsprintf(
-        $conn,
-        'epoch <= %d',
-        $this->maximumEpoch);
-    }
-
-    if ($this->channelIDs !== null) {
-      $where[] = qsprintf(
-        $conn,
-        'channelID IN (%Ld)',
-        $this->channelIDs);
-    }
-
-    return $this->formatWhereClause($conn, $where);
-  }
-
-  public function getQueryApplicationClass() {
-    return 'PhabricatorChatLogApplication';
-  }
-
-}

src/applications/chatlog/storage/PhabricatorChatLogChannel.php

···
-<?php
-
-final class PhabricatorChatLogChannel
-  extends PhabricatorChatLogDAO
-  implements PhabricatorPolicyInterface {
-
-  protected $serviceName;
-  protected $serviceType;
-  protected $channelName;
-  protected $viewPolicy;
-  protected $editPolicy;
-
-  protected function getConfiguration() {
-    return array(
-      self::CONFIG_COLUMN_SCHEMA => array(
-        'serviceName' => 'text64',
-        'serviceType' => 'text32',
-        'channelName' => 'text64',
-      ),
-      self::CONFIG_KEY_SCHEMA => array(
-        'key_channel' => array(
-          'columns' => array('channelName', 'serviceType', 'serviceName'),
-          'unique' => true,
-        ),
-      ),
-    ) + parent::getConfiguration();
-  }
-
-  public function getCapabilities() {
-    return array(
-      PhabricatorPolicyCapability::CAN_VIEW,
-      PhabricatorPolicyCapability::CAN_EDIT,
-    );
-  }
-
-  public function getPolicy($capability) {
-    switch ($capability) {
-      case PhabricatorPolicyCapability::CAN_VIEW:
-        return $this->viewPolicy;
-        break;
-      case PhabricatorPolicyCapability::CAN_EDIT:
-        return $this->editPolicy;
-        break;
-    }
-  }
-
-  public function hasAutomaticCapability($capability, PhabricatorUser $viewer) {
-    return false;
-  }
-
-}

src/applications/chatlog/storage/PhabricatorChatLogDAO.php

···
-<?php
-
-abstract class PhabricatorChatLogDAO extends PhabricatorLiskDAO {
-
-  public function getApplicationName() {
-    return 'chatlog';
-  }
-
-}

src/applications/chatlog/storage/PhabricatorChatLogEvent.php

···
-<?php
-
-final class PhabricatorChatLogEvent
-  extends PhabricatorChatLogDAO
-  implements PhabricatorPolicyInterface {
-
-  protected $channelID;
-  protected $epoch;
-  protected $author;
-  protected $type;
-  protected $message;
-  protected $loggedByPHID;
-
-  private $channel = self::ATTACHABLE;
-
-  protected function getConfiguration() {
-    return array(
-      self::CONFIG_TIMESTAMPS => false,
-      self::CONFIG_COLUMN_SCHEMA => array(
-        'author' => 'text64',
-        'type' => 'text4',
-        'message' => 'text',
-      ),
-      self::CONFIG_KEY_SCHEMA => array(
-        'channel' => array(
-          'columns' => array('epoch'),
-        ),
-      ),
-    ) + parent::getConfiguration();
-  }
-
-  public function attachChannel(PhabricatorChatLogChannel $channel) {
-    $this->channel = $channel;
-    return $this;
-  }
-
-  public function getChannel() {
-    return $this->assertAttached($this->channel);
-  }
-
-
-/* -(  PhabricatorPolicyInterface  )----------------------------------------- */
-
-
-  public function getCapabilities() {
-    return array(
-      PhabricatorPolicyCapability::CAN_VIEW,
-    );
-  }
-
-  public function getPolicy($capability) {
-    return $this->getChannel()->getPolicy($capability);
-  }
-
-  public function hasAutomaticCapability($capability, PhabricatorUser $viewer) {
-    return $this->getChannel()->hasAutomaticCapability($capability, $viewer);
-  }
-
-}

src/docs/book/phorge.book

···
       "name": "Celerity",
       "include": "(^src/applications/celerity/)"
     },
-    "chatlog": {
-      "name": "Chatlog",
-      "include": "(^src/applications/chatlog/)"
-    },
     "conduit": {
       "name": "Conduit",
       "include": "(^src/applications/conduit/)"

src/infrastructure/storage/patch/PhabricatorBuiltinPatchList.php

···
         'after' => array( /* First Patch */ ),
       ),
       'db.calendar' => array(),
-      'db.chatlog' => array(),
       'db.conduit' => array(),
       'db.countdown' => array(),
       'db.daemon' => array(),

webroot/rsrc/css/application/chatlog/chatlog.css

···
-/**
- * @provides phabricator-chatlog-css
- */
-
-.device-phone .phabricator-chat-log-wrap {
-  padding: 0;
-}
-
-.phabricator-chat-log-pager-bottom {
-  padding: 8px 4px 16px;
-  font-weight: bold;
-  float: right;
-}
-
-.phabricator-chat-log-pager-bottom a {
-  padding: 2px 3px;
-}
-
-.phabricator-chat-log-panel {
-  clear: both;
-}
-
-.phabricator-chat-log {
-  width: 100%;
-}
-
-.phabricator-chat-log td {
-  padding: 8px;
-  line-height: 18px;
-}
-
-.phabricator-chat-log tr {
-  background: #fff;
-}
-
-.phabricator-chat-log tr td.author {
-  background: {$greybackground};
-}
-
-.phabricator-chat-log tr.alternate {
-  border-top: 1px solid {$thinblueborder};
-  border-bottom: 1px solid {$thinblueborder};
-}
-
-.phabricator-chat-log tr.alternate td.author {
-  background: {$lightgreybackground};
-}
-
-.phabricator-chat-log tr.highlight td {
-  background: {$lightyellow};
-}
-
-.phabricator-chat-log td.timestamp {
-  white-space: nowrap;
-  text-align: right;
-  width: 12em;
-}
-
-.phabricator-chat-log td.message .timestamp {
-  color: {$bluetext};
-  font-size: {$smallestfontsize};
-  float: right;
-  margin-left: 5px;
-}
-
-.phabricator-chat-log td.author {
-  white-space: nowrap;
-  text-align: right;
-  font-weight: bold;
-  width: 140px;
-  color: {$darkbluetext};
-}
-
-.device-phone .phabricator-chat-log td.author {
-  width: 80px;
-}
-
-.phabricator-chat-log td.message {
-  white-space: pre-wrap;
-  word-break: break-word;
-}