From 9f39660f50004ca7c49ea171e2a6f199487cd667 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 14 Apr 2024 15:18:42 +0200
Subject: Adding upstream version 1.3.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 library/Eventdb/Data/LegacyFilterParser.php        | 153 +++++++++++++++++
 library/Eventdb/Event.php                          | 120 ++++++++++++++
 library/Eventdb/Eventdb.php                        | 184 +++++++++++++++++++++
 library/Eventdb/EventdbController.php              | 181 ++++++++++++++++++++
 library/Eventdb/Hook/DetailviewExtensionHook.php   | 124 ++++++++++++++
 .../Monitoring/DetailviewExtension.php             |  81 +++++++++
 .../ProvidedHook/Monitoring/EventdbActionHook.php  | 182 ++++++++++++++++++++
 .../ProvidedHook/Monitoring/HostActions.php        |  15 ++
 .../ProvidedHook/Monitoring/ServiceActions.php     |  15 ++
 library/Eventdb/Test/BaseTestCase.php              |  27 +++
 library/Eventdb/Test/Bootstrap.php                 |  35 ++++
 library/Eventdb/Test/PseudoHost.php                |  15 ++
 library/Eventdb/Test/PseudoMonitoringBackend.php   |  14 ++
 library/Eventdb/Test/PseudoService.php             |  16 ++
 library/Eventdb/Web/EventdbOutputFormat.php        |  66 ++++++++
 15 files changed, 1228 insertions(+)
 create mode 100644 library/Eventdb/Data/LegacyFilterParser.php
 create mode 100644 library/Eventdb/Event.php
 create mode 100644 library/Eventdb/Eventdb.php
 create mode 100644 library/Eventdb/EventdbController.php
 create mode 100644 library/Eventdb/Hook/DetailviewExtensionHook.php
 create mode 100644 library/Eventdb/ProvidedHook/Monitoring/DetailviewExtension.php
 create mode 100644 library/Eventdb/ProvidedHook/Monitoring/EventdbActionHook.php
 create mode 100644 library/Eventdb/ProvidedHook/Monitoring/HostActions.php
 create mode 100644 library/Eventdb/ProvidedHook/Monitoring/ServiceActions.php
 create mode 100644 library/Eventdb/Test/BaseTestCase.php
 create mode 100644 library/Eventdb/Test/Bootstrap.php
 create mode 100644 library/Eventdb/Test/PseudoHost.php
 create mode 100644 library/Eventdb/Test/PseudoMonitoringBackend.php
 create mode 100644 library/Eventdb/Test/PseudoService.php
 create mode 100644 library/Eventdb/Web/EventdbOutputFormat.php

(limited to 'library/Eventdb')

diff --git a/library/Eventdb/Data/LegacyFilterParser.php b/library/Eventdb/Data/LegacyFilterParser.php
new file mode 100644
index 0000000..2907202
--- /dev/null
+++ b/library/Eventdb/Data/LegacyFilterParser.php
@@ -0,0 +1,153 @@
+<?php
+/* Icinga Web 2 - EventDB | (c) 2017 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Module\Eventdb\Data;
+
+use Icinga\Data\Filter\Filter;
+use Icinga\Data\Filter\FilterAnd;
+use Icinga\Data\Filter\FilterOr;
+use Icinga\Exception\InvalidPropertyException;
+
+/**
+ * Class LegacyFilterParser
+ *
+ * Utility class to parse Icinga-web 1.x JSON filters of the EventDB module
+ */
+class LegacyFilterParser
+{
+    /**
+     * @param $json        string  JSON data
+     * @param $host        string  Icinga host name (for default host filter and logging)
+     * @param $service     string  Icinga service name (for logging)
+     *
+     * @return Filter
+     * @throws InvalidPropertyException When filter could not be parsed
+     */
+    static public function parse($json, $host, $service = null)
+    {
+        $json = static::fixJSONQuotes($json);
+
+        $data = json_decode($json, false, 5);
+        if (json_last_error() !== JSON_ERROR_NONE) {
+            throw new InvalidPropertyException(
+                'Could not decode legacy filter (host=%s)%s (%s): %s',
+                $host,
+                ($service ? ' (service=' . $service . ')' : ''),
+                json_last_error_msg(),
+                $json
+            );
+        }
+
+        $filter = new FilterAnd();
+
+        if (property_exists($data, 'host')) {
+            // Note: we can' support regexp right now, but we replace '.*' to a normal wildcard
+            $data->host = str_replace('.*', '*', $data->host);
+            if ($data->host === '*') {
+                $data->host = null;
+            }
+        } else {
+            $data->host = $host;
+        }
+        if ($data->host !== null) {
+            $filter->andFilter(Filter::expression('host_name', '=', $data->host));
+        }
+
+        static::handleArray($filter, $data, 'programInclusion', 'program');
+        static::handleArray($filter, $data, 'programExclusion', 'program', '!=');
+
+        static::handleArray($filter, $data, 'priorityExclusion', 'priority', '!=');
+        static::handleArray($filter, $data, 'sourceExclusion', 'source', '!=');
+        static::handleArray($filter, $data, 'facilityExclusion', 'facility', '!=');
+
+        // TODO: msg - when really needed
+        // TODO: startTime - when really needed
+
+        // Note: any other field or data part gets ignored...
+
+        return $filter;
+    }
+
+    protected static function handleArray(Filter $filter, $data, $property, $filterAttr, $op = '=')
+    {
+        if (property_exists($data, $property) && ! empty($data->$property)) {
+            if ($op === '!=') {
+                $subFilter = $filter;
+            } else {
+                $subFilter = new FilterOr;
+            }
+
+            /*
+            if (is_array($data->$property) && count($data->$property) === 1) {
+                $data->$property = current($data->$property);
+            }
+            */
+            if (! is_array($data->$property)) {
+                $data->$property = array($data->$property);
+            }
+            foreach ($data->$property as $val) {
+                $subFilter->addFilter(Filter::expression($filterAttr, $op, $val));
+            }
+
+            if ($subFilter !== $filter) {
+                $filters = $subFilter->filters();
+                if ($filter->isChain() && count($filters) > 1) {
+                    $filter->andFilter($subFilter);
+                } else {
+                    $filter->andFilter(current($filters));
+                }
+            }
+        }
+    }
+
+    /**
+     * @author partially by NikiC https://stackoverflow.com/users/385378/nikic
+     * @source partially from https://stackoverflow.com/a/20440596/449813
+     *
+     * @param $json string
+     *
+     * @return string
+     */
+    public static function fixJSONQuotes($json)
+    {
+        // fix unquoted identifiers
+        $json = preg_replace('/([{,]+)(\s*)([^"]+?)\s*:/', '$1"$3":', $json);
+
+        $regex = <<<'REGEX'
+~
+    "[^"\\]*(?:\\.|[^"\\]*)*"
+    (*SKIP)(*F)
+  | '([^'\\]*(?:\\.|[^'\\]*)*)'
+~x
+REGEX;
+
+        return preg_replace_callback($regex, function ($matches) {
+            return '"' . preg_replace('~\\\\.(*SKIP)(*F)|"~', '\\"', $matches[1]) . '"';
+        }, $json);
+    }
+
+    /**
+     * Basic check if it looks like a JSON filter
+     *
+     * @param $string
+     *
+     * @return bool
+     */
+    static public function isJsonFilter($string)
+    {
+        if (! $string || ! is_string($string)) {
+            return false;
+        }
+
+        $string = trim($string);
+        if (empty($string)) {
+            return false;
+        }
+
+        if (preg_match('/^\{.*\}$/s', $string)) {
+            // looks like JSON data
+            return true;
+        }
+        return false;
+    }
+}
diff --git a/library/Eventdb/Event.php b/library/Eventdb/Event.php
new file mode 100644
index 0000000..a3bba1a
--- /dev/null
+++ b/library/Eventdb/Event.php
@@ -0,0 +1,120 @@
+<?php
+/* Icinga Web 2 | (c) 2016 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Module\Eventdb;
+
+use ArrayObject;
+
+class Event extends ArrayObject
+{
+    public static $facilities = array(
+        0 => 'kernel messages',
+        1 => 'user-level messages',
+        2 => 'mail system',
+        3 => 'system daemons',
+        4 => 'security/authorization messages',
+        5 => 'messages generated internally by syslogd',
+        6 => 'line printer subsystem',
+        7 => 'network news subsystem',
+        8 => 'UUCP subsystem',
+        9 => 'clock daemon',
+        10 => 'security/authorization messages',
+        11 => 'FTP daemon',
+        12 => 'NTP subsystem',
+        13 => 'log audit',
+        14 => 'log alert',
+        15 => 'clock daemon',
+        16 => 'local use 0',
+        17 => 'local use 1',
+        18 => 'local use 2',
+        19 => 'local use 3',
+        20 => 'local use 4',
+        21 => 'local use 5',
+        22 => 'local use 6',
+        23 => 'local use 7'
+    );
+
+    public static $priorities = array(
+        0 => 'emergency',
+        1 => 'alert',
+        2 => 'critical',
+        3 => 'error',
+        4 => 'warning',
+        5 => 'notice',
+        6 => 'info',
+        7 => 'debug'
+    );
+
+    public static $types = array(
+        0 => 'syslog',
+        1 => 'snmp',
+        2 => 'mail'
+    );
+
+    public static $typeIcons = array(
+        '_default' => 'help',
+        'syslog'   => 'doc-text',
+        'snmp'     => 'plug',
+        'mail'     => 'bell',
+    );
+
+    public function __construct($data)
+    {
+        parent::__construct($data, ArrayObject::ARRAY_AS_PROPS);
+    }
+
+    public function offsetGet($index)
+    {
+        if (! $this->offsetExists($index)) {
+            return null;
+        }
+        $getter = 'get' . ucfirst($index);
+        if (method_exists($this, $getter)) {
+            return $this->$getter();
+        }
+        return parent::offsetGet($index);
+    }
+
+    public function getAck()
+    {
+        return (bool) parent::offsetGet('ack');
+    }
+
+    public function getFacility()
+    {
+        $facility = (int) parent::offsetGet('facility');
+        return array_key_exists($facility, static::$facilities) ? static::$facilities[$facility] : $facility;
+    }
+
+    public function getPriority()
+    {
+        $priority = (int) parent::offsetGet('priority');
+        return array_key_exists($priority, static::$priorities) ? static::$priorities[$priority] : $priority;
+    }
+
+    public function getType()
+    {
+        $type = (int) parent::offsetGet('type');
+        return array_key_exists($type, static::$types) ? static::$types[$type] : $type;
+    }
+
+    public function getTypeIcon()
+    {
+        if (array_key_exists($type = $this->getType(), static::$typeIcons)) {
+            return static::$typeIcons[$type];
+        } else {
+            return static::$typeIcons['_default'];
+        }
+    }
+
+    public static function fromData($data)
+    {
+        return new static($data);
+    }
+
+    public static function getPriorityId($priorityName)
+    {
+        $priorities = array_flip(static::$priorities);
+        return $priorities[$priorityName];
+    }
+}
diff --git a/library/Eventdb/Eventdb.php b/library/Eventdb/Eventdb.php
new file mode 100644
index 0000000..b885258
--- /dev/null
+++ b/library/Eventdb/Eventdb.php
@@ -0,0 +1,184 @@
+<?php
+/* Icinga Web 2 | (c) 2016 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Module\Eventdb;
+
+use Icinga\Application\Config;
+use Icinga\Data\ConfigObject;
+use Icinga\Data\Filter\Filter;
+use Icinga\Data\Filter\FilterExpression;
+use Icinga\Data\ResourceFactory;
+use Icinga\Exception\ConfigurationError;
+use Icinga\Repository\DbRepository;
+use Icinga\Repository\RepositoryQuery;
+
+class Eventdb extends DbRepository
+{
+    /**
+     * {@inheritdoc}
+     */
+    const DATETIME_FORMAT = 'Y-m-d G:i:s';
+
+    /**
+     * {@inheritdoc}
+     */
+    protected $tableAliases = array(
+        'comment' => 'c',
+        'event'   => 'e',
+    );
+
+    /**
+     * Default query columns
+     *
+     * @var array
+     */
+    protected static $defaultQueryColumns = array(
+        'event'   => array(
+            'id',
+            'host_name',
+            'host_address',
+            'type',
+            'facility',
+            'priority',
+            'program',
+            'message',
+            'alternative_message',
+            'ack',
+            'created',
+            'modified',
+        ),
+        'comment' => array(
+            'id',
+            'event_id',
+            'type',
+            'message',
+            'created',
+            'modified',
+            'user'
+        )
+    );
+
+    protected static $edbcQueryColumns = array(
+        'event' => array(
+            'group_active',
+            'group_id',
+            'group_count',
+            'group_leader',
+            'group_autoclear',
+            'flags',
+            'alternative_message'
+        )
+    );
+
+    /** @var bool */
+    protected $hasCorrelatorExtensions = null;
+
+    /**
+     * Checks if Event repository has EDBC columns
+     *
+     * @return bool
+     */
+    public function hasCorrelatorExtensions()
+    {
+        if ($this->hasCorrelatorExtensions === null) {
+            $dba = $this->getDataSource()->getDbAdapter();
+            $result = $dba->fetchRow("SHOW COLUMNS FROM `event` LIKE 'group_leader'");
+
+            $this->hasCorrelatorExtensions = ! ! $result;
+        }
+        return $this->hasCorrelatorExtensions;
+    }
+
+    public function filterGroups(RepositoryQuery $query)
+    {
+        if ($this->hasCorrelatorExtensions()) {
+            $query->addFilter(Filter::matchAny(
+                Filter::expression('group_leader', '=', -1),
+                new FilterExpression('group_leader', 'IS', new \Zend_Db_Expr('NULL'))
+            ));
+        }
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function initializeQueryColumns()
+    {
+        $additionalColumns = Config::module('eventdb', 'columns')->keys();
+        $queryColumns = static::$defaultQueryColumns;
+        if ($this->hasCorrelatorExtensions()) {
+            foreach (static::$edbcQueryColumns as $table => $fields) {
+                if (array_key_exists($table, $queryColumns)) {
+                    $queryColumns[$table] = array_merge($queryColumns[$table], $fields);
+                } else {
+                    $queryColumns[$table] = $fields;
+                }
+            }
+        }
+        if ($additionalColumns !== null) {
+            $eventColumns = $queryColumns['event'];
+            $queryColumns['event'] = array_merge($eventColumns, array_diff($additionalColumns, $eventColumns));
+        }
+        return $queryColumns;
+    }
+
+    /**
+     * Create and return a new instance of the Eventdb
+     *
+     * @param   ConfigObject    $config     The configuration to use, otherwise the module's configuration
+     *
+     * @return  static
+     *
+     * @throws  ConfigurationError          In case no resource has been configured in the module's configuration
+     */
+    public static function fromConfig(ConfigObject $config = null)
+    {
+        if ($config === null) {
+            $moduleConfig = Config::module('eventdb');
+            if (($resourceName = $moduleConfig->get('backend', 'resource')) === null) {
+                throw new ConfigurationError(
+                    mt('eventdb', 'You need to configure a resource to access the EventDB database first')
+                );
+            }
+
+            $resource = ResourceFactory::create($resourceName);
+        } else {
+            $resource = ResourceFactory::createResource($config);
+        }
+
+        return new static($resource);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function initializeConversionRules()
+    {
+        return array('event' => array('host_address' => 'ip_address'));
+    }
+
+    /**
+     * Convert an IP address into its human-readable form
+     *
+     * @param   string  $rawAddress
+     *
+     * @return  string
+     */
+    protected function retrieveIpAddress($rawAddress)
+    {
+        return $rawAddress === null ? null : inet_ntop($rawAddress);
+    }
+
+    /**
+     * Convert an IP address into its binary form
+     *
+     * @param   string  $address
+     *
+     * @return  string
+     */
+    protected function persistIpAddress($address)
+    {
+        return $address === null ? null : inet_pton($address);
+    }
+}
diff --git a/library/Eventdb/EventdbController.php b/library/Eventdb/EventdbController.php
new file mode 100644
index 0000000..538553e
--- /dev/null
+++ b/library/Eventdb/EventdbController.php
@@ -0,0 +1,181 @@
+<?php
+/* Icinga Web 2 | (c) 2016 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Module\Eventdb;
+
+use Icinga\Application\Icinga;
+use Icinga\Data\QueryInterface;
+use Icinga\Exception\IcingaException;
+use Icinga\Exception\Json\JsonEncodeException;
+use Icinga\Module\Monitoring\Backend\MonitoringBackend;
+use Icinga\Web\Controller;
+use Icinga\Web\View;
+
+class EventdbController extends Controller
+{
+    /** @var View */
+    public $view;
+
+    /** @var  MonitoringBackend */
+    protected $monitoringBackend;
+
+    /**
+     * Get the EventDB repository
+     *
+     * @return  Eventdb
+     */
+    protected function getDb()
+    {
+        return Eventdb::fromConfig();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getRestrictions($name, $permission = null)
+    {
+        $restrictions = array();
+        if ($this->Auth()->isAuthenticated()) {
+            foreach ($this->Auth()->getUser()->getRoles() as $role) {
+                if ($permission !== null && ! in_array($permission, $role->getPermissions())) {
+                    continue;
+                }
+                $restrictionsFromRole = $role->getRestrictions($name);
+                if (empty($restrictionsFromRole)) {
+                    $restrictions = array();
+                    break;
+                } else {
+                    if (! is_array($restrictionsFromRole)) {
+                        $restrictionsFromRole = array($restrictionsFromRole);
+                    }
+                    $restrictions = array_merge($restrictions, array_values($restrictionsFromRole));
+                }
+            }
+        }
+        return $restrictions;
+    }
+
+    /**
+     * Retrieves the Icinga MonitoringBackend
+     *
+     * @param string|null $name
+     *
+     * @return MonitoringBackend
+     * @throws IcingaException When monitoring is not enabled
+     */
+    protected function monitoringBackend($name = null)
+    {
+        if ($this->monitoringBackend === null) {
+            if (! Icinga::app()->getModuleManager()->hasEnabled('monitoring')) {
+                throw new IcingaException('The module "monitoring" must be enabled and configured!');
+            }
+            $this->monitoringBackend = MonitoringBackend::instance($name);
+        }
+        return $this->monitoringBackend;
+    }
+
+    protected function setViewScript($name)
+    {
+        $this->_helper->viewRenderer->setNoController(true);
+        $this->_helper->viewRenderer->setScriptAction($name);
+    }
+
+    protected function isFormatRequest()
+    {
+        return $this->hasParam('format');
+    }
+
+    protected function isApiRequest()
+    {
+        $format = $this->getParam('format');
+        $header = $this->getRequest()->getHeader('Accept');
+
+        if ($format === 'json' || preg_match('#application/json(;.+)?#', $header)) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    protected function isTextRequest()
+    {
+        $format = $this->getParam('format');
+        if ($format === 'text' || $this->isPlainTextRequest()) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    protected function isPlainTextRequest()
+    {
+        $header = $this->getRequest()->getHeader('Accept');
+        if ($header !== null && preg_match('#text/plain#', $header)) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * Send the user a summary of SQL queries
+     *
+     * @param array|QueryInterface $queries
+     */
+    protected function sendSqlSummary($queries)
+    {
+        if (! is_array($queries)) {
+            $queries = array($queries);
+        }
+
+        $str = '';
+        foreach ($queries as $query) {
+            if ($query !== null) {
+                $str .= wordwrap($query) . "\n\n";
+            }
+        }
+
+        $this->sendText($str);
+    }
+
+    /**
+     * Output JSON data to the requester
+     *
+     * @param mixed $data
+     * @param int   $options
+     * @param int   $depth
+     *
+     * @throws JsonEncodeException
+     */
+    protected function sendJson($data, $options = 0, $depth = 100)
+    {
+        header('Content-Type: application/json');
+
+        if (defined('JSON_PARTIAL_OUTPUT_ON_ERROR')) {
+            $options |= JSON_PARTIAL_OUTPUT_ON_ERROR;
+        }
+
+        $output = json_encode($data, $options, $depth);
+        if (! $output && json_last_error() !== null) {
+            throw new JsonEncodeException('JSON error: ' . json_last_error_msg());
+        }
+        echo $output;
+        exit;
+    }
+
+    protected function sendText($str, $script = null)
+    {
+        if ($this->isPlainTextRequest()) {
+            if ($script !== null) {
+                echo $this->view->render($this->getViewScript($script, true));
+            } else {
+                echo $str;
+            }
+            exit;
+        } else {
+            $this->view->text = $str;
+            $this->view->partial = $script;
+            $this->setViewScript('format/text');
+        }
+    }
+}
diff --git a/library/Eventdb/Hook/DetailviewExtensionHook.php b/library/Eventdb/Hook/DetailviewExtensionHook.php
new file mode 100644
index 0000000..9fee702
--- /dev/null
+++ b/library/Eventdb/Hook/DetailviewExtensionHook.php
@@ -0,0 +1,124 @@
+<?php
+/* Icinga Web 2 | (c) 2018 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Module\Eventdb\Hook;
+
+use Icinga\Application\ClassLoader;
+use Icinga\Application\Icinga;
+use Icinga\Application\Modules\Module;
+use Icinga\Module\Eventdb\Event;
+use Icinga\Web\View;
+
+/**
+ * Base class for hooks extending the detail view of events
+ *
+ * Extend this class if you want to extend the detail view of events with custom HTML.
+ */
+abstract class DetailviewExtensionHook
+{
+    /**
+     * The view the generated HTML will be included in
+     *
+     * @var View
+     */
+    private $view;
+
+    /**
+     * The module of the derived class
+     *
+     * @var Module
+     */
+    private $module;
+
+    /**
+     * Create a new hook
+     *
+     * @see init() For hook initialization.
+     */
+    final public function __construct()
+    {
+        $this->init();
+    }
+
+    /**
+     * Overwrite this function for hook initialization, e.g. loading the hook's config
+     */
+    protected function init()
+    {
+    }
+
+    /**
+     * Shall return valid HTML to include in the detail view
+     *
+     * @param Event $event The event to generate HTML for
+     *
+     * @return string
+     */
+    abstract public function getHtmlForEvent(Event $event);
+
+    /**
+     * Shall return valid HTML to include in the multi-select view for events
+     *
+     * @param Event[] $events The events to generate HTML for
+     *
+     * @return string
+     */
+    public function getHtmlForEvents($events)
+    {
+        return '';
+    }
+
+    /**
+     * Get {@link view}
+     *
+     * @return View
+     */
+    public function getView()
+    {
+        return $this->view;
+    }
+
+    /**
+     * Set {@link view}
+     *
+     * @param   View $view
+     *
+     * @return  $this
+     */
+    public function setView($view)
+    {
+        $this->view = $view;
+        return $this;
+    }
+
+    /**
+     * Get the module of the derived class
+     *
+     * @return Module
+     */
+    public function getModule()
+    {
+        if ($this->module === null) {
+            $class = get_class($this);
+            if (ClassLoader::classBelongsToModule($class)) {
+                $this->module = Icinga::app()->getModuleManager()->getModule(ClassLoader::extractModuleName($class));
+            }
+        }
+
+        return $this->module;
+    }
+
+    /**
+     * Set the module of the derived class
+     *
+     * @param Module $module
+     *
+     * @return $this
+     */
+    public function setModule(Module $module)
+    {
+        $this->module = $module;
+
+        return $this;
+    }
+}
diff --git a/library/Eventdb/ProvidedHook/Monitoring/DetailviewExtension.php b/library/Eventdb/ProvidedHook/Monitoring/DetailviewExtension.php
new file mode 100644
index 0000000..e03f401
--- /dev/null
+++ b/library/Eventdb/ProvidedHook/Monitoring/DetailviewExtension.php
@@ -0,0 +1,81 @@
+<?php
+/* Icinga Web 2 - EventDB | (c) 2017 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Module\Eventdb\ProvidedHook\Monitoring;
+
+use Icinga\Application\Config;
+use Icinga\Authentication\Auth;
+use Icinga\Data\Filter\Filter;
+use Icinga\Data\Filter\FilterAnd;
+use Icinga\Module\Eventdb\Eventdb;
+use Icinga\Module\Monitoring\Hook\DetailviewExtensionHook;
+use Icinga\Module\Monitoring\Object\MonitoredObject;
+use Icinga\Web\Navigation\Navigation;
+use Icinga\Web\Url;
+
+/**
+ * Available in icingaweb2 after 2.5.0
+ */
+class DetailviewExtension extends DetailviewExtensionHook
+{
+    public function getHtmlForObject(MonitoredObject $object)
+    {
+        if (! Auth::getInstance()->hasPermission('eventdb/events')) {
+            return '';
+        }
+
+        $config = static::config();
+
+        if ($config->get('detailview_disable') === '1') {
+            return '';
+        }
+
+        $actions = clone EventdbActionHook::getActions($object);
+        if (! $actions->hasRenderableItems()) {
+            // no actions -> no EventDB
+            return '';
+        }
+
+        $htm = '<h2>EventDB</h2>';
+
+        $htm .= '<div class="quick-actions">';
+        $actions->setLayout(Navigation::LAYOUT_TABS);
+        $htm .= $actions->render();
+        $htm .= '</div>';
+
+        $url = Url::fromPath('eventdb/events', array('host_name' => $object->host_name));
+
+        $customFilter = EventdbActionHook::getCustomFilter($object);
+        if ($customFilter === null) {
+            $customFilter = new FilterAnd;
+        }
+        $detailview_filter = $config->get('detailview_filter', 'ack=0');
+        if ($detailview_filter !== null) {
+            $customFilter = $customFilter->andFilter(Filter::fromQueryString($detailview_filter));
+        }
+
+        $htm .= sprintf(
+            '<div class="container" data-last-update="-1" data-icinga-url="%s" data-icinga-refresh="60">',
+            $url->with(array(
+                'sort'  => 'priority',
+                'dir'   => 'asc',
+                'view'  => 'compact',
+                'limit' => 5,
+            ))->addFilter($customFilter)
+        );
+        $htm .= '<p class="progress-label">' . mt('eventdb', 'Loading') . '<span>.</span><span>.</span><span>.</span></p>';
+        $htm .= '</div>';
+
+        return $htm;
+    }
+
+    protected function eventDb()
+    {
+        return Eventdb::fromConfig();
+    }
+
+    protected static function config()
+    {
+        return Config::module('eventdb')->getSection('monitoring');
+    }
+}
diff --git a/library/Eventdb/ProvidedHook/Monitoring/EventdbActionHook.php b/library/Eventdb/ProvidedHook/Monitoring/EventdbActionHook.php
new file mode 100644
index 0000000..1eb968d
--- /dev/null
+++ b/library/Eventdb/ProvidedHook/Monitoring/EventdbActionHook.php
@@ -0,0 +1,182 @@
+<?php
+/* Icinga Web 2 - EventDB | (c) 2017 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Module\Eventdb\ProvidedHook\Monitoring;
+
+use Icinga\Application\Config;
+use Icinga\Application\Logger;
+use Icinga\Authentication\Auth;
+use Icinga\Data\Filter\Filter;
+use Icinga\Data\Filter\FilterParseException;
+use Icinga\Exception\InvalidPropertyException;
+use Icinga\Module\Eventdb\Data\LegacyFilterParser;
+use Icinga\Module\Monitoring\Object\Host;
+use Icinga\Module\Monitoring\Object\MonitoredObject;
+use Icinga\Module\Monitoring\Object\Service;
+use Icinga\Web\Navigation\Navigation;
+use Icinga\Web\Url;
+use Icinga\Web\UrlParams;
+
+class EventdbActionHook
+{
+    protected static $wantCache = true;
+
+    protected static $cachedNav = array();
+
+    protected static $customFilters = array();
+
+    public static function wantCache($bool=true)
+    {
+        static::$wantCache = $bool;
+    }
+
+    /**
+     * @param MonitoredObject $object
+     * @param bool            $no_cache
+     *
+     * @return null|Filter
+     */
+    public static function getCustomFilter(MonitoredObject $object)
+    {
+        if (! Auth::getInstance()->hasPermission('eventdb/events')) {
+            return null;
+        }
+
+        $objectKey = static::getObjectKey($object);
+
+        // check cache if the filter already have been rendered
+        if (static::$wantCache && array_key_exists($objectKey, self::$customFilters)) {
+            return self::$customFilters[$objectKey];
+        }
+
+        $config = static::config();
+        $custom_var = $config->get('custom_var', null);
+
+        $service = null;
+        $edb_filter = null;
+        if ($custom_var !== null && $object instanceof Service) {
+            $edb_filter = $object->{'_service_' . $custom_var . '_filter'};
+            $service = $object->service_description;
+        } elseif ($custom_var !== null && $object instanceof Host) {
+            $edb_filter = $object->{'_host_' . $custom_var . '_filter'};
+        }
+
+        $customFilter = null;
+        if ($edb_filter !== null) {
+            if (LegacyFilterParser::isJsonFilter($edb_filter)) {
+                try {
+                    $customFilter = LegacyFilterParser::parse(
+                        $edb_filter,
+                        $object->host_name,
+                        $service
+                    );
+                } catch (InvalidPropertyException $e) {
+                    Logger::warning($e->getMessage());
+                }
+            } else {
+                try {
+                    $customFilter = Filter::fromQueryString($edb_filter);
+
+                    if (! in_array('host_name', $customFilter->listFilteredColumns())) {
+                        $customFilter = $customFilter->andFilter(Filter::expression('host_name', '=', $object->host_name));
+                    }
+                } catch (FilterParseException $e) {
+                    Logger::warning('Could not parse custom EventDB filter: %s (%s)', $edb_filter, $e->getMessage());
+                }
+            }
+        }
+
+        return self::$customFilters[$objectKey] = $customFilter;
+    }
+
+    /**
+     * @param MonitoredObject $object    Host or Service to render for
+     * @param bool            $no_cache  Only for testing - to avoid caching
+     *
+     * @return array|Navigation
+     */
+    public static function getActions(MonitoredObject $object)
+    {
+        if (! Auth::getInstance()->hasPermission('eventdb/events')) {
+            return array();
+        }
+
+        $objectKey = static::getObjectKey($object);
+
+        // check cache if the buttons already have been rendered
+        if (static::$wantCache && array_key_exists($objectKey, self::$cachedNav)) {
+            return self::$cachedNav[$objectKey];
+        }
+
+        $nav = new Navigation();
+
+        $config = static::config();
+
+        $custom_var = $config->get('custom_var', null);
+
+        $edb_cv = null;
+        $always_on = null;
+
+        if ($custom_var !== null && $object instanceof Service) {
+            $edb_cv = $object->{'_service_' . $custom_var};
+            $always_on = $config->get('always_on_service', 0);
+        } elseif ($custom_var !== null && $object instanceof Host) {
+            $edb_cv = $object->{'_host_' . $custom_var};
+            $always_on = $config->get('always_on_host', 0);
+        }
+
+        $customFilter = static::getCustomFilter($object);
+        if ($customFilter !== null) {
+            $params = UrlParams::fromQueryString($customFilter->toQueryString());
+            $nav->addItem(
+                'events_filtered',
+                array(
+                    'label'    => mt('eventdb', 'Filtered events'),
+                    'url'      => Url::fromPath('eventdb/events')->setParams($params),
+                    'icon'     => 'tasks',
+                    'class'    => 'action-link',
+                    'priority' => 1
+                )
+            );
+        }
+
+        // show access to all events, if (or)
+        // - custom_var is not configured
+        // - always_on is configured
+        // - custom_var is configured and set on object (to any value)
+        if ($custom_var === null || ! empty($edb_cv) || ! empty($always_on)) {
+            $nav->addItem(
+                'events',
+                array(
+                    'label'    => mt('eventdb', 'All events for host'),
+                    'url'      => Url::fromPath(
+                        'eventdb/events',
+                        array(
+                            'host_name' => $object->host_name,
+                        )
+                    ),
+                    'icon'     => 'tasks',
+                    'class'    => 'action-link',
+                    'priority' => 99
+                )
+            );
+        }
+
+        return self::$cachedNav[$objectKey] = $nav;
+    }
+
+    protected static function getObjectKey(MonitoredObject $object)
+    {
+        $type = $object->getType();
+        $objectKey = sprintf('%!%', $type, $object->host_name);
+        if ($type === 'service') {
+            $objectKey .= '!' . $object->service_description;
+        }
+        return $objectKey;
+    }
+
+    protected static function config()
+    {
+        return Config::module('eventdb')->getSection('monitoring');
+    }
+}
diff --git a/library/Eventdb/ProvidedHook/Monitoring/HostActions.php b/library/Eventdb/ProvidedHook/Monitoring/HostActions.php
new file mode 100644
index 0000000..caf33e3
--- /dev/null
+++ b/library/Eventdb/ProvidedHook/Monitoring/HostActions.php
@@ -0,0 +1,15 @@
+<?php
+/* Icinga Web 2 - EventDB | (c) 2017 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Module\Eventdb\ProvidedHook\Monitoring;
+
+use Icinga\Module\Monitoring\Hook\HostActionsHook;
+use Icinga\Module\Monitoring\Object\Host;
+
+class HostActions extends HostActionsHook
+{
+    public function getActionsForHost(Host $host)
+    {
+        return EventdbActionHook::getActions($host);
+    }
+}
diff --git a/library/Eventdb/ProvidedHook/Monitoring/ServiceActions.php b/library/Eventdb/ProvidedHook/Monitoring/ServiceActions.php
new file mode 100644
index 0000000..61a7a87
--- /dev/null
+++ b/library/Eventdb/ProvidedHook/Monitoring/ServiceActions.php
@@ -0,0 +1,15 @@
+<?php
+/* Icinga Web 2 - EventDB | (c) 2017 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Module\Eventdb\ProvidedHook\Monitoring;
+
+use Icinga\Module\Monitoring\Hook\ServiceActionsHook;
+use Icinga\Module\Monitoring\Object\Service;
+
+class ServiceActions extends ServiceActionsHook
+{
+    public function getActionsForService(Service $service)
+    {
+        return EventdbActionHook::getActions($service);
+    }
+}
diff --git a/library/Eventdb/Test/BaseTestCase.php b/library/Eventdb/Test/BaseTestCase.php
new file mode 100644
index 0000000..d24ea49
--- /dev/null
+++ b/library/Eventdb/Test/BaseTestCase.php
@@ -0,0 +1,27 @@
+<?php
+
+namespace Icinga\Module\Eventdb\Test;
+
+use Icinga\Application\Icinga;
+use PHPUnit_Framework_TestCase;
+
+abstract class BaseTestCase extends PHPUnit_Framework_TestCase
+{
+    private static $app;
+
+    private $db;
+
+    public function setUp()
+    {
+        $this->app();
+    }
+
+    protected function app()
+    {
+        if (self::$app === null) {
+            self::$app = Icinga::app();
+        }
+
+        return self::$app;
+    }
+}
diff --git a/library/Eventdb/Test/Bootstrap.php b/library/Eventdb/Test/Bootstrap.php
new file mode 100644
index 0000000..848b360
--- /dev/null
+++ b/library/Eventdb/Test/Bootstrap.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Icinga\Module\Eventdb\Test;
+
+use Icinga\Application\EmbeddedWeb;
+use Icinga\Authentication\Auth;
+use Icinga\User;
+
+class Bootstrap
+{
+    public static function web($basedir = null)
+    {
+        error_reporting(E_ALL | E_STRICT);
+        if ($basedir === null) {
+            $basedir = dirname(dirname(dirname(__DIR__)));
+        }
+        $testsDir = $basedir . '/test';
+        require_once 'Icinga/Application/EmbeddedWeb.php';
+
+        if (array_key_exists('ICINGAWEB_CONFIGDIR', $_SERVER)) {
+            $configDir = $_SERVER['ICINGAWEB_CONFIGDIR'];
+        } else {
+            $configDir = $testsDir . '/config';
+        }
+
+        EmbeddedWeb::start($testsDir, $configDir)
+            ->getModuleManager()
+            ->loadModule('eventdb', $basedir)
+            ->loadModule('monitoring', $basedir . '/vendor/icingaweb2/modules/monitoring');
+
+        $user = new User('icingaadmin');
+        $user->setPermissions(array('*'));
+        Auth::getInstance()->setAuthenticated($user);
+    }
+}
diff --git a/library/Eventdb/Test/PseudoHost.php b/library/Eventdb/Test/PseudoHost.php
new file mode 100644
index 0000000..7ebcd8c
--- /dev/null
+++ b/library/Eventdb/Test/PseudoHost.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace Icinga\Module\Eventdb\Test;
+
+use Icinga\Module\Monitoring\Object\Host;
+
+class PseudoHost extends Host
+{
+    public function provideCustomVars($vars)
+    {
+        $this->properties = new \stdClass;
+        $this->hostVariables = $this->customvars = $vars;
+        return $this;
+    }
+}
diff --git a/library/Eventdb/Test/PseudoMonitoringBackend.php b/library/Eventdb/Test/PseudoMonitoringBackend.php
new file mode 100644
index 0000000..3ad6de5
--- /dev/null
+++ b/library/Eventdb/Test/PseudoMonitoringBackend.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace Icinga\Module\Eventdb\Test;
+
+use Icinga\Data\ConfigObject;
+use Icinga\Module\Monitoring\Backend\MonitoringBackend;
+
+class PseudoMonitoringBackend extends MonitoringBackend
+{
+    public static function dummy()
+    {
+        return new static('dummy', new ConfigObject());
+    }
+}
diff --git a/library/Eventdb/Test/PseudoService.php b/library/Eventdb/Test/PseudoService.php
new file mode 100644
index 0000000..737a8ac
--- /dev/null
+++ b/library/Eventdb/Test/PseudoService.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace Icinga\Module\Eventdb\Test;
+
+use Icinga\Module\Monitoring\Object\Service;
+
+class PseudoService extends Service
+{
+    public function provideCustomVars($vars)
+    {
+        $this->properties = new \stdClass;
+        $this->serviceVariables = $this->customvars = $vars;
+        $this->hostVariables = array();
+        return $this;
+    }
+}
diff --git a/library/Eventdb/Web/EventdbOutputFormat.php b/library/Eventdb/Web/EventdbOutputFormat.php
new file mode 100644
index 0000000..ceec1ce
--- /dev/null
+++ b/library/Eventdb/Web/EventdbOutputFormat.php
@@ -0,0 +1,66 @@
+<?php
+
+namespace Icinga\Module\Eventdb\Web;
+
+use Icinga\Web\Widget\Tabextension\OutputFormat;
+use Icinga\Web\Widget\Tabs;
+
+class EventdbOutputFormat extends OutputFormat
+{
+    /**
+     * TEXT output type
+     */
+    const TYPE_TEXT = 'text';
+
+    /**
+     * Types that are disabled by default
+     *
+     * @var array
+     */
+    protected static $disabledTypes = array(self::TYPE_PDF, self::TYPE_CSV);
+
+    /**
+     * Types that are enabled in addition to default
+     *
+     * @var array
+     */
+    protected $enable = array();
+
+    /**
+     * {@inheritdoc}
+     */
+    public function __construct($disabled = array(), $enable = array())
+    {
+        $this->enable = $enable;
+        $disabled = array_merge(static::$disabledTypes, $disabled);
+        parent::__construct($disabled);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getSupportedTypes()
+    {
+        $supported = parent::getSupportedTypes();
+
+        if (in_array(self::TYPE_TEXT, $this->enable)) {
+            $supported[self::TYPE_TEXT] = array(
+                'name'      => 'text',
+                'label'     => mt('eventdb', 'Text'),
+                'icon'      => 'doc-text',
+                'urlParams' => array('format' => 'text'),
+            );
+        }
+
+        return $supported;
+    }
+
+    public function apply(Tabs $tabs)
+    {
+        parent::apply($tabs);
+
+        if ($textTab = $tabs->get(self::TYPE_TEXT)) {
+            $textTab->setTargetBlank(false);
+        }
+    }
+}
-- 
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