Merge pull request #1809 from Icinga/feature/command-flat

IcingaCommand: Allow command to be rendered as string

application/forms/IcingaCommandForm.php

@@ -73,6 +73,22 @@ class IcingaCommandForm extends DirectorObjectForm
                 . ' specific unit (e.g. 1m or also 3m 30s).'
             )
         ));
+
+        $descIsString = [
+            $this->translate('Render the command as a plain string instead of an array.'),
+            $this->translate('If enabled you can not define arguments.'),
+            $this->translate('Disabled by default, and should only be used in rare cases.'),
+            $this->translate('WARNING, this can allow shell script injection via custom variables used in command.'),
+        ];
+
+        $this->addBoolean(
+            'is_string',
+            array(
+                'label'       => $this->translate('Render as string'),
+                'description' => join(' ', $descIsString),
+            )
+        );
+
         $this->addDisabledElement();
         $this->addZoneSection();
         $this->setButtons();

library/Director/Objects/IcingaCommand.php

@@ -19,14 +19,19 @@ class IcingaCommand extends IcingaObject implements ObjectWithArguments, ExportI
     protected $type = 'CheckCommand';
 
     protected $defaultProperties = [
-        'id'                    => null,
+        'id'              => null,
-        'object_name'           => null,
+        'object_name'     => null,
-        'object_type'           => null,
+        'object_type'     => null,
-        'disabled'              => 'n',
+        'disabled'        => 'n',
-        'methods_execute'       => null,
+        'methods_execute' => null,
-        'command'               => null,
+        'command'         => null,
-        'timeout'               => null,
+        'timeout'         => null,
-        'zone_id'               => null,
+        'zone_id'         => null,
+        'is_string'       => null,
+    ];
+
+    protected $booleans = [
+        'is_string' => 'is_string',
     ];
 
     protected $supportsCustomVars = true;
@@ -288,16 +293,33 @@ class IcingaCommand extends IcingaObject implements ObjectWithArguments, ExportI
         $command = $this->get('command');
         $prefix = '';
         if (preg_match('~^([A-Z][A-Za-z0-9_]+\s\+\s)(.+?)$~', $command, $m)) {
-            $prefix  = $m[1];
+            $prefix = $m[1];
             $command = $m[2];
         } elseif (! $this->isAbsolutePath($command)) {
             $prefix = 'PluginDir + ';
             $command = '/' . $command;
         }
-        $parts = preg_split('/\s+/', $command, -1, PREG_SPLIT_NO_EMPTY);
-        array_unshift($parts, c::alreadyRendered($prefix . c::renderString(array_shift($parts))));
 
-        return c::renderKeyValue('command', c::renderArray($parts));
+        $inherited = $this->getInheritedProperties();
+
+        if ($this->get('is_string') === 'y' || ($this->get('is_string') === null
+                && property_exists($inherited, 'is_string') && $inherited->is_string === 'y')) {
+            return c::renderKeyValue('command', $prefix . c::renderString($command));
+        } else {
+            $parts = preg_split('/\s+/', $command, -1, PREG_SPLIT_NO_EMPTY);
+            array_unshift($parts, c::alreadyRendered($prefix . c::renderString(array_shift($parts))));
+
+            return c::renderKeyValue('command', c::renderArray($parts));
+        }
+    }
+
+    /**
+     * @codingStandardsIgnoreStart
+     */
+    protected function renderIs_string()
+    {
+        // @codingStandardsIgnoreEnd
+        return '';
     }
 
     protected function isAbsolutePath($path)

library/Director/Web/ObjectPreview.php

@@ -99,17 +99,23 @@ class ObjectPreview
                 $classes[] = 'logfile';
             }
 
+            $type = $object->getShortTableName();
+
             $plain = Html::wantHtml($file->getContent())->render();
             $plain = preg_replace_callback(
                 '/^(\s+import\s+\&quot\;)(.+)(\&quot\;)/m',
                 [$this, 'linkImport'],
                 $plain
             );
-            $plain = preg_replace_callback(
+
-                '/^(\s+(?:check_|event_)?command\s+=\s+\&quot\;)(.+)(\&quot\;)/m',
+            if ($type !== 'command') {
-                [$this, 'linkCommand'],
+                $plain = preg_replace_callback(
-                $plain
+                    '/^(\s+(?:check_|event_)?command\s+=\s+\&quot\;)(.+)(\&quot\;)/m',
-            );
+                    [$this, 'linkCommand'],
+                    $plain
+                );
+            }
+
             $plain = preg_replace_callback(
                 '/^(\s+host_name\s+=\s+\&quot\;)(.+)(\&quot\;)/m',
                 [$this, 'linkHost'],

library/Director/Web/Widget/IcingaObjectInspection.php

@@ -57,18 +57,21 @@ class IcingaObjectInspection extends BaseHtmlElement
     {
         $this->add(Html::tag('h2', null, $this->translate('Last Check Result')));
         $this->renderCheckResultDetails($result);
-        if (property_exists($result, 'command') && is_array($result->command)) {
+        if (property_exists($result, 'command')) {
             $this->renderExecutedCommand($result->command);
         }
     }
 
     /**
-     * @param array $command
+     * @param array|string $command
+     *
      * @throws \Icinga\Exception\IcingaException
      */
-    protected function renderExecutedCommand(array $command)
+    protected function renderExecutedCommand($command)
     {
-        $command = implode(' ', array_map('escapeshellarg', $command));
+        if (is_array($command)) {
+            $command = implode(' ', array_map('escapeshellarg', $command));
+        }
         $this->add([
             Html::tag('h3', null, 'Executed Command'),
             $this->formatConsole($command)

schema/mysql-migrations/upgrade_160.sql

@@ -0,0 +1,6 @@
+ALTER TABLE icinga_command
+  ADD COLUMN is_string enum ('y', 'n') NULL;
+
+INSERT INTO director_schema_migration
+  (schema_version, migration_time)
+  VALUES (160, NOW());

schema/mysql.sql

@@ -320,6 +320,7 @@ CREATE TABLE icinga_command (
   disabled ENUM('y', 'n') NOT NULL DEFAULT 'n',
   methods_execute VARCHAR(64) DEFAULT NULL,
   command TEXT DEFAULT NULL,
+  is_string ENUM('y', 'n') NULL,
   -- env text DEFAULT NULL,
   -- vars text DEFAULT NULL,
   timeout SMALLINT UNSIGNED DEFAULT NULL,
@@ -1787,4 +1788,4 @@ CREATE TABLE icinga_timeperiod_exclude (
 
 INSERT INTO director_schema_migration
   (schema_version, migration_time)
-  VALUES (159, NOW());
+  VALUES (160, NOW());

schema/pgsql-migrations/upgrade_160.sql

@@ -0,0 +1,6 @@
+ALTER TABLE icinga_command
+  ADD COLUMN is_string enum_boolean NULL;
+
+INSERT INTO director_schema_migration
+  (schema_version, migration_time)
+  VALUES (160, NOW());

schema/pgsql.sql

@@ -415,6 +415,7 @@ CREATE TABLE icinga_command (
   disabled enum_boolean NOT NULL DEFAULT 'n',
   methods_execute character varying(64) DEFAULT NULL,
   command text DEFAULT NULL,
+  is_string enum_boolean NULL,
 -- env text DEFAULT NULL,
   timeout smallint DEFAULT NULL,
   zone_id integer DEFAULT NULL,
@@ -2086,4 +2087,4 @@ CREATE TABLE icinga_timeperiod_exclude (
 
 INSERT INTO director_schema_migration
   (schema_version, migration_time)
-  VALUES (158, NOW());
+  VALUES (160, NOW());