function jsonlog_form_system_logging_settings_alter in JSONlog 7

Same name and namespace in other branches
8.2 jsonlog.module \jsonlog_form_system_logging_settings_alter()
8 jsonlog.module \jsonlog_form_system_logging_settings_alter()
7.2 jsonlog.module \jsonlog_form_system_logging_settings_alter()
3.x jsonlog.module \jsonlog_form_system_logging_settings_alter()
Adds this module's setting fields to the system logging settings form.
Implements hook_form_FORM_ID_alter().
_state
Parameters

array &$form:
File

./jsonlog.module, line 23: JSONlog module.
Code

function jsonlog_form_system_logging_settings_alter(&$form, &$form_state) {
  module_load_include('inc', 'jsonlog');
  $form['#attributes']['autocomplete'] = 'off';
  drupal_add_css(drupal_get_path('module', 'jsonlog') . '/jsonlog.admin.css', array(
    'type' => 'file',
    'group' => CSS_DEFAULT,
    'preprocess' => FALSE,
    'every_page' => FALSE,
  ));

  // Defaults.
  $siteid_default = jsonlog_default_site_id();
  if (!($file_default = jsonlog_default_file())) {
    drupal_set_message(t('Failed to establish the server\'s default logging directory.', array(), array(
      'context' => 'module:jsonlog',
    )), 'error');
  }

  // These translations are used a lot.
  $t_siteId = t('Site ID', array(), array(
    'context' => 'module:jsonlog',
  ));
  $t_overridden = t(' !sml¡overridden!!_sml', array(
    '!sml' => '<small>',
    '!_sml' => '</small>',
  ), array(
    'context' => 'module:jsonlog',
  ));

  // Using 'emergency' as threshold is simply not an option; because it's falsy (expensive type checks, FALSE), and wouldn't make sense anyway.
  $severity_levels = watchdog_severity_levels();
  unset($severity_levels[0]);
  $form['jsonlog'] = array(
    '#type' => 'fieldset',
    '#title' => 'JSON Log',
    '#description' => t('Any server variable \'drupal_[jsonlog_varable_name]\' will override \'[jsonlog_varable_name]\' conf. variable,!breakexcept for !emphtags!_emph (will be combined).', array(
      '!break' => '<br/>',
      '!emph' => '<em>',
      '!_emph' => '</em>',
    ), array(
      'context' => 'module:jsonlog',
    )) . '<br/>' . t('Tip: Server environment variables set in virtual host or .htaccess won\'t be visible by drush/CLI; /etc/environment might be your friend instead.', array(
      '!break' => '<br/>',
    ), array(
      'context' => 'module:jsonlog',
    )),
    '#collapsible' => TRUE,
    '#collapsed' => FALSE,
  );

  // Severity threshold.
  if ($severity_threshold = getenv('drupal_jsonlog_severity_threshold')) {
    $overridden = TRUE;
  }
  else {
    $severity_threshold = variable_get('jsonlog_severity_threshold', WATCHDOG_WARNING);
    $overridden = FALSE;
  }
  $form['jsonlog']['jsonlog_severity_threshold'] = array(
    '#type' => 'select',
    '#title' => t('Don\'t log events that are less severe than !sml[jsonlog_severity_threshold]!_sml!overridden', array(
      '!overridden' => $overridden ? $t_overridden : '',
      '!sml' => '<small>',
      '!_sml' => '</small>',
    ), array(
      'context' => 'module:jsonlog',
    )),
    '#description' => t('Emergency is not an option.', array(), array(
      'context' => 'module:jsonlog',
    )),
    '#options' => $severity_levels,
    '#default_value' => $severity_threshold,
  );
  if ($overridden) {
    $form['jsonlog']['jsonlog_severity_threshold']['#attributes'] = array(
      'disabled' => 'disabled',
    );
  }

  // Truncation.
  if (($truncate = getenv('drupal_jsonlog_truncate')) !== FALSE) {
    $overridden = TRUE;
  }
  else {
    $truncate = variable_get('jsonlog_truncate', JSONLOG_TRUNCATE_DEFAULT);
    $overridden = FALSE;
  }
  $form['jsonlog']['jsonlog_truncate'] = array(
    '#type' => 'textfield',
    '#title' => t('Truncate events to !sml[jsonlog_truncate]!_sml!overridden', array(
      '!overridden' => $overridden ? $t_overridden : '',
      '!sml' => '<small>',
      '!_sml' => '</small>',
    ), array(
      'context' => 'module:jsonlog',
    )),
    '#description' => t('Zero means no truncation.!breakLog entries longer than the file system\'s block size may result in garbled logs, due to concurrent file writes.!breakThe default block size of ext3 (common *nix file system) is !default Kb.', array(
      '!default' => JSONLOG_TRUNCATE_DEFAULT,
      '!break' => '<br/>',
    ), array(
      'context' => 'module:jsonlog',
    )),
    '#default_value' => $truncate,
    '#size' => 5,
    '#field_suffix' => t('Kb', array(), array(
      'context' => 'module:jsonlog',
    )),
  );
  if ($overridden) {
    $form['jsonlog']['jsonlog_truncate']['#attributes'] = array(
      'disabled' => 'disabled',
    );
  }

  // Site ID.
  if ($site_id = getenv('drupal_jsonlog_siteid')) {
    $overridden = TRUE;
  }
  else {
    if (!($site_id = variable_get('jsonlog_siteid'))) {
      $site_id = $siteid_default;
    }
    $overridden = FALSE;
  }
  $form['jsonlog']['jsonlog_siteid'] = array(
    '#type' => 'textfield',
    '#title' => t('Site ID !sml[jsonlog_siteid]!_sml!overridden', array(
      '!overridden' => $overridden ? $t_overridden : '',
      '!sml' => '<small>',
      '!_sml' => '</small>',
    ), array(
      'context' => 'module:jsonlog',
    )),
    '#description' => t('Spaces and quotes get replaced by hyphens.!breakDefaults to the server\'s hostname and the site\'s database name and prefix (if any):!break!default', array(
      '!default' => '&nbsp; ' . $siteid_default,
      '!break' => '<br/>',
    ), array(
      'context' => 'module:jsonlog',
    )),
    '#required' => TRUE,
    '#default_value' => $site_id,
  );
  if ($overridden) {
    $form['jsonlog']['jsonlog_siteid']['#attributes'] = array(
      'disabled' => 'disabled',
    );
  }

  // File.
  if ($file = getenv('drupal_jsonlog_file')) {
    $overridden = TRUE;
  }
  else {
    if (!($file = variable_get('jsonlog_file'))) {
      $file = $file_default;
    }
    $overridden = FALSE;
  }
  $form['jsonlog']['jsonlog_file'] = array(
    '#type' => 'textfield',
    '#title' => t('Log file !sml[jsonlog_file]!_sml!overridden', array(
      '!overridden' => $overridden ? $t_overridden : '',
      '!sml' => '<small>',
      '!_sml' => '</small>',
    ), array(
      'context' => 'module:jsonlog',
    )),
    '#description' => t('Defaults to PHP ini \'error_log\' path + /drupal-jsonlog/ + !site_id:!break!default!breakNB: The web server user (www-data|apache) probably isn\'t allowed to write to a file in the \'error_log\' path!break- create a sub dir (like \'drupal-jsonlog\') as root user, and do a chown or chmod on that sub dir.', array(
      '!default' => '&nbsp; ' . $file_default,
      '!site_id' => $t_siteId,
      '!break' => '<br/>',
    ), array(
      'context' => 'module:jsonlog',
    )),
    '#required' => TRUE,
    '#default_value' => $file,
    '#size' => 100,
  );
  if ($overridden) {
    $form['jsonlog']['jsonlog_file']['#attributes'] = array(
      'disabled' => 'disabled',
    );
  }

  // Test logging.
  $form['jsonlog']['jsonlog_test_filing'] = array(
    '#type' => 'checkbox',
    '#title' => t('Test filing a JSONlog entry', array(), array(
      'context' => 'module:jsonlog',
    )),
    '#description' => t('You\'ll be warned and guided along if it doesn\'t work correctly.', array(), array(
      'context' => 'module:jsonlog',
    )),
    '#default_value' => 0,
    '#title_display' => 'before',
  );

  // Tags.
  $tags_server = ($tags = getenv('drupal_jsonlog_tags')) !== FALSE ? $tags : '';
  $form['jsonlog']['jsonlog_tags'] = array(
    '#type' => 'textfield',
    '#title' => t('Tags !sml[jsonlog_tags]!_sml', array(
      '!sml' => '<small>',
      '!_sml' => '</small>',
    ), array(
      'context' => 'module:jsonlog',
    )),
    '#description' => t('Comma-separated list of tags.!breakTags set by server environment variable will be combined with tags set here.', array(
      '!break' => '<br/>',
    ), array(
      'context' => 'module:jsonlog',
    )),
    '#default_value' => $tags_site = variable_get('jsonlog_tags', ''),
    '#size' => 100,
    '#field_prefix' => $tags_server !== '' ? $tags_server . ', ' : '',
  );

  // Make table view of a log entry.
  // ISO 8601 timestamp.
  $millis = round(microtime(TRUE) * 1000);
  $seconds = (int) floor($millis / 1000);
  $millis -= $seconds * 1000;
  $millis = str_pad($millis, 3, '0', STR_PAD_LEFT);
  $timestamp = substr(gmdate('c', $seconds), 0, 19) . '.' . $millis . 'Z';
  if ($tags_server) {
    $tags = $tags_server;
    if ($tags_site) {
      $tags .= ',' . $tags_site;
    }
  }
  else {
    $tags = $tags_site;
  }
  if ($tags) {
    $tags = '[\'' . join('\',\'', explode(',', $tags)) . '\']';
  }
  else {
    $tags = 'null';
  }

  // JSON fields.
  $json_fields = array(
    'message' => array(
      'label' => t('Message', array(), array(
        'context' => 'module:jsonlog',
      )),
      'value' => t('Some message', array(), array(
        'context' => 'module:jsonlog',
      )),
    ),
    'timestamp' => array(
      'label' => t('Timestamp', array(), array(
        'context' => 'module:jsonlog',
      )),
      'name' => '@timestamp',
      'value' => $timestamp,
    ),
    'version' => array(
      'custom' => TRUE,
      'name' => '@version',
      'label' => t('Version', array(), array(
        'context' => 'module:jsonlog',
      )),
      'value' => 1,
    ),
    'message_id' => array(
      'custom' => TRUE,
      'name' => 'message_id',
      'label' => t('Message ID (!site_id + unique ID)', array(
        '!site_id' => $t_siteId,
      ), array(
        'context' => 'module:jsonlog',
      )),
      'value' => uniqid($site_id, TRUE),
    ),
    'site_id' => array(
      'custom' => TRUE,
      'name' => 'site_id',
      'label' => $t_siteId,
      'value' => $site_id,
    ),
    'tags' => array(
      'custom' => TRUE,
      'name' => 'tags',
      'label' => t('Tags (null or array of strings)', array(), array(
        'context' => 'module:jsonlog',
      )),
      'value' => $tags,
    ),
    'type' => array(
      'label' => t('Type', array(), array(
        'context' => 'module:jsonlog',
      )),
      'value' => 'some_module_name',
    ),
    'severity' => array(
      'label' => t('Severity', array(), array(
        'context' => 'module:jsonlog',
      )),
      'value' => $severity_threshold,
    ),
    'method' => array(
      'custom' => TRUE,
      'name' => 'method',
      'label' => t('Request method (GET, POST, cli)', array(), array(
        'context' => 'module:jsonlog',
      )),
      'value' => $_SERVER['REQUEST_METHOD'],
    ),
    'request_uri' => array(
      'label' => t('Request URI', array(), array(
        'context' => 'module:jsonlog',
      )),
      'value' => $GLOBALS['base_root'] . request_uri(),
    ),
    'referer' => array(
      'label' => t('Referer', array(), array(
        'context' => 'module:jsonlog',
      )),
      'value' => isset($_SERVER['HTTP_REFERER']) ? check_plain($_SERVER['HTTP_REFERER']) : '',
    ),
    'uid' => array(
      'label' => t('User ID', array(), array(
        'context' => 'module:jsonlog',
      )),
      'value' => $uid = $GLOBALS['user']->uid,
    ),
    'username' => array(
      'custom' => TRUE,
      'name' => 'username',
      'label' => t('Username (when not anonymous user)', array(), array(
        'context' => 'module:jsonlog',
      )),
      'value' => $uid && !empty($GLOBALS['user']->name) ? $GLOBALS['user']->name : '',
    ),
    'ip' => array(
      'name' => 'client_ip',
      'label' => t('User\'s I.P. address', array(), array(
        'context' => 'module:jsonlog',
      )),
      'value' => ip_address(),
    ),
    'link' => array(
      'label' => t('Link', array(), array(
        'context' => 'module:jsonlog',
      )),
      'value' => '',
    ),
    'variables' => array(
      'label' => t('Variables (null or object hash map)', array(), array(
        'context' => 'module:jsonlog',
      )),
      'value' => '',
    ),
    'truncation' => array(
      'custom' => TRUE,
      'name' => 'trunc',
      'label' => t('Truncation (null, or array [original message length, truncated message length])', array(), array(
        'context' => 'module:jsonlog',
      )),
      'value' => NULL,
    ),
  );
  $table_header = array(
    t('Property', array(), array(
      'context' => 'module:jsonlog',
    )),
    t('JSON field name', array(), array(
      'context' => 'module:jsonlog',
    )),
    t('Example', array(), array(
      'context' => 'module:jsonlog',
    )),
  );
  $table_rows = array();
  foreach ($json_fields as $name => $props) {
    $table_rows[] = array(
      'data' => array(
        $props['label'],
        !empty($props['name']) ? $props['name'] : $name,
        $props['value'],
      ),
    );
  }
  $form['jsonlog']['example'] = array(
    '#type' => 'markup',
    '#markup' => '<label>' . t('JSONlog entry example', array(), array(
      'context' => 'module:jsonlog',
    )) . '</label>' . theme_table(array(
      'header' => $table_header,
      'rows' => $table_rows,
      'attributes' => array(
        'class' => array(
          'jsonlog-entry-example',
        ),
      ),
      'caption' => '',
      'colgroups' => array(),
      'sticky' => TRUE,
      'empty' => '',
    )),
  );
  $form['#validate'][] = 'jsonlog_form_system_logging_settings_validate';

  // Prepend our submit handler; we need to get in first, otherwise our changes to form values amounts to nothing.
  array_unshift($form['#submit'], 'jsonlog_form_system_logging_settings_submit');
  return system_settings_form($form);
}
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function jsonlog_form_system_logging_settings_alter in JSONlog 7

Parameters

File

Code

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