Club Drupal

 * Contains FeedsJSONPathParser.

 * Parses JSON using JSONPath.

   * A regular expression that finds four byte UTF-8 chars.

   *

   * @var string

   */

  protected static $fourByteRegex = '/(?:\xF0[\x90-\xBF][\x80-\xBF]{2}|[\xF1-\xF3][\x80-\xBF]{3}|\xF4[\x80-\x8F][\x80-\xBF]{2})/s';

  /**

   * The source fields to debug.

   *

   * @var array

   */

  protected $debug = array();

  /**

   * Implements FeedsParser::parse().

    $mappings = $this->getOwnMappings();

    if (!is_array($array)) {

      throw new Exception(t('There was an error decoding the JSON document.'));

    }

    require_once feeds_jsonpath_parser_library_path();

    $all_items = $this->jsonPath($array, $source_config['context']);

    unset($array);

    // Batch.

    $state = $source->state(FEEDS_PARSE);

    if (!$state->total) {

      $state->total = count($all_items);

    }

    $start = (int) $state->pointer;

    $state->pointer = $start + $source->importer->getLimit();

    $all_items = array_slice($all_items, $start, $source->importer->getLimit());

    // Set progress state.

    $state->progress($state->total, $state->pointer);

    // Debug output.

    $this->debug($all_items, 'context');

    foreach ($all_items as $item) {

      // Invoke a hook to check whether the item should be skipped.

      if ($this->invokeHook($item, $source) === TRUE) {

        continue;

      }

      $parsed_item = $variables = array();

      foreach ($source_config['sources'] as $source_key => $query) {

        // Variable substitution.

        $query = strtr($query, $variables);

        $parsed = $this->parseSourceElement($item, $query, $source_key);

        $variables['{' . $mappings[$source_key] . '}'] = is_array($parsed) ? reset($parsed) : $parsed;

        // Avoid null values.

        if (isset($parsed)) {

          $parsed_item[$source_key] = $parsed;

      }

      if (!empty($parsed_item)) {

   * Utilizes the jsonPath function from jsonpath-0.8.1.php.

   * @param array $array

   *   The input array to parse.

   * @param string $expression

   *

   *   Returns an array that is the output of jsonPath.

   *

   * @todo

   *   Firgure out error handling.

  protected function jsonPath($array, $expression) {

   * @param array $item

   *   An array containing one item from the context.

   * @param string $query

   * @param string $source

   *   The source element that corresponds to the query.

   *

    $count = count($results);

    if ($count === 0) {

    foreach ($results as $delta => $value) {

      if (is_string($value) && $value !== '') {

        $results[$delta] = !empty($this->config['convert_four_byte']) ? $this->convertFourBytes($value) : $this->stripFourBytes($value);

      }

    }

    if ($count === 1) {

      return reset($results);

    }

    if (isset($source_config['allow_override']) &&

        !$source_config['allow_override'] &&

        empty($source_config['config'])) {

      return;

    }

        if (!empty($mapping['unique'])) {

      // Detect if Feeds menu structure has changed. This will take a while to

      // be released, but since I run dev it needs to work.

      $feeds_menu = feeds_ui_menu();

      if (isset($feeds_menu['admin/structure/feeds/list'])) {

        $feeds_base = 'admin/structure/feeds/edit/';

      }

      else {

        $feeds_base = 'admin/structure/feeds/';

      }

      $form['jsonpath']['error_message']['#markup'] = '<div class="help">' . t('No JSONPath mappings are defined. Define mappings !link.', array('!link' => l(t('here'), $feeds_base . $this->id . '/mapping'))) . '</div><br />';

        $variable_text = format_plural(count($variables),

          t('The variable %v is available for replacement.', array('%v' => implode(', ', $variables))),

          t('The variables %v are available for replacement.', array('%v' => implode(', ', $variables)))

        );

        $form['jsonpath']['sources'][$source]['#description'] .= '<br />' . $variable_text;

    $config = $this->getConfig();

    $config['config'] = TRUE;

    $form = $this->sourceForm($config);

    $form['jsonpath']['allow_override'] = array(

      '#type' => 'checkbox',

      '#title' => t('Allow source configuration override'),

      '#description' => t('This setting allows feed nodes to specify their own JSONPath values for the context and sources.'),

      '#default_value' => $config['allow_override'],

    );

    $form['jsonpath']['convert_four_byte'] = array(

      '#type' => 'checkbox',

      '#title' => t('Convert four byte characters'),

      '#description' => t('Coverts four byte UTF-8 characters to their HTML entity. By default, four byte characters will be stripped.'),

      '#default_value' => !empty($config['convert_four_byte']),

    );

   * Override parent::getMappingSources().

   */

      $keys = array_keys($mappings);

      $nums = array();

      foreach ($keys as $key) {

        list(, $num) = explode(':', $key);

        $nums[] = $num;

      }

      $max = max($nums);

      $next = ++$max;

        'description' => t('Allows you to configure a JSONPath expression that will populate this field.'),

      'allow_override' => FALSE,

      'convert_four_byte' => FALSE,

   * @param array $values

    $config = $this->getConfig();

    $allow_override = $config['allow_override'];

    unset($config['allow_override']);

    unset($config['convert_four_byte']);

    ksort($values);

    ksort($config);

    if ($values === $config || !$allow_override) {

    $values['context'] = isset($values['context']) ? trim($values['context']) : '';

    if (!empty($values['sources'])) {

      foreach ($values['sources'] as &$source) {

        $source = trim($source);

      }

  /**

   * Gets the mappings that belong to this parser.

   *

   * @return array

   *   An array of mappings keyed source => target.

   */

  protected function getOwnMappings() {

    $importer_config = feeds_importer($this->id)->getConfig();

    return $this->filterMappings($importer_config['processor']['config']['mappings']);

  }

   *

   * @param array $mappings

   *   A mapping array from a processor.

   *

   * @return array

   *   An array of mappings keyed source => target.

  protected function filterMappings($mappings) {

  protected function debug($item, $source) {

  /**

   * Calls our filter hook.

   *

   * @param array &$item

   *   The item to alter.

   * @param FeedsSource $source

   *   The feed source.

   * @return true|null

   *   Returns true if the item should be skipped.

   */

  protected function invokeHook(array &$item, FeedsSource $source) {

    foreach (module_implements('feeds_jsonpath_parser_filter') as $module) {

      $function = $module . '_feeds_jsonpath_parser_filter';

      if ($function($item, $source) === TRUE) {

        return TRUE;

      }

    }

  }

  /**

   * Strips four byte characters from a string.

   *

   * @param string $string

   *   The input string.

   *

   * @return string

   *   The string with four byte characters removed.

   */

  public static function stripFourBytes($string) {

    return preg_replace(self::$fourByteRegex, '', $string);

  }

  /**

   * Replaces four byte characters with their HTML unicode codepoint.

   *

   * @param string $string

   *   The input string.

   *

   * @return string

   *   The string with four byte characters converted.

   */

  public static function convertFourBytes($string) {

    return preg_replace_callback(self::$fourByteRegex, array('FeedsJSONPathParser', 'doFourByteReplace'), $string);

  }

  /**

   * Callback for FeedsJSONPathParser::convertFourBytes().

   *

   * @param array $matches

   *   The regular expression matches.

   *

   * @return string

   *   A four byte unicode character converted to its HTML representation.

   */

  public static function doFourByteReplace(array $matches) {

    $char = $matches[0];

    // Calculate the codepoint of the character.

    $codepoint = ord($char[0]) - 0xF0 << 18;

    $codepoint += ord($char[1]) - 0x80 << 12;

    $codepoint += ord($char[2]) - 0x80 << 6;

    $codepoint += ord($char[3]) - 0x80;

    return '&#' . $codepoint . ';';

  }

                    GNU GENERAL PUBLIC LICENSE

                       Version 2, June 1991

 Copyright (C) 1989, 1991 Free Software Foundation, Inc.,

 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

 Everyone is permitted to copy and distribute verbatim copies

 of this license document, but changing it is not allowed.

                            Preamble

  The licenses for most software are designed to take away your

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  When we speak of free software, we are referring to freedom, not

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  To protect your rights, we need to make restrictions that forbid

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These restrictions translate to certain responsibilities for you if you

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  For example, if you distribute copies of such a program, whether

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  We protect your rights with two steps: (1) copyright the software, and

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  The precise terms and conditions for copying, distribution and

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                    GNU GENERAL PUBLIC LICENSE

   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

  0. This License applies to any program or other work which contains

a notice placed by the copyright holder saying it may be distributed

under the terms of this General Public License.  The "Program", below,

refers to any such program or work, and a "work based on the Program"

means either the Program or any derivative work under copyright law:

that is to say, a work containing the Program or a portion of it,

either verbatim or with modifications and/or translated into another

language.  (Hereinafter, translation is included without limitation in

the term "modification".)  Each licensee is addressed as "you".

Activities other than copying, distribution and modification are not

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running the Program is not restricted, and the output from the Program

is covered only if its contents constitute a work based on the

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Whether that is true depends on what the Program does.

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with the Program (or with a work based on the Program) on a volume of

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                     END OF TERMS AND CONDITIONS

            How to Apply These Terms to Your New Programs

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the "copyright" line and a pointer to where the full notice is found.

    <one line to give the program's name and a brief idea of what it does.>

    Copyright (C) <year>  <name of author>

    This program is free software; you can redistribute it and/or modify

    it under the terms of the GNU General Public License as published by

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    This program is distributed in the hope that it will be useful,

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    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

Also add information on how to contact you by electronic and paper mail.

If the program is interactive, make it output a short notice like this

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    Gnomovision version 69, Copyright (C) year name of author

    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.

    This is free software, and you are welcome to redistribute it

    under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the appropriate

parts of the General Public License.  Of course, the commands you use may

be called something other than `show w' and `show c'; they could even be

mouse-clicks or menu items--whatever suits your program.

You should also get your employer (if you work as a programmer) or your

school, if any, to sign a "copyright disclaimer" for the program, if

necessary.  Here is a sample; alter the names:

  Yoyodyne, Inc., hereby disclaims all copyright interest in the program

  `Gnomovision' (which makes passes at compilers) written by James Hacker.

  <signature of Ty Coon>, 1 April 1989

  Ty Coon, President of Vice

This General Public License does not permit incorporating your program into

proprietary programs.  If your program is a subroutine library, you may

consider it more useful to permit linking proprietary applications with the

library.  If this is what you want to do, use the GNU Lesser General

Public License instead of this License.

<?php

/**

 * @file

 * Documentation of Feeds JSONPath parser hooks.

 */

 /**

  * Allows filtering or modifying a feed item.

  *

  * @param array &$item

  *   The feed item to modify.

  *

  * @return bool

  *   Returns true if the item should be skipped.

  */

 function hook_feeds_jsonpath_parser_filter(array &$item, FeedsSource $source) {

   // Check for the importer.

   if ($source->id  != 'my_importer') {

     return;

   }

   // 1) Alter the items array.

   $item['title'] = 'A hard coded title';

   // 2) Return TRUE which will cause this item to be skipped.

   if ($item['title'] == 'An item I would like to skip.') {

     return TRUE;

   }

 }

name = JSONPath Parser

files[] = FeedsJSONPathParser.inc

; Information added by Drupal.org packaging script on 2015-06-25

version = "7.x-1.0"

datestamp = "1435272784"

 * Implements hook_requirements().

  if ($phase !== 'runtime' && $phase !== 'install') {

    return $requirements;

  drupal_load('module', 'feeds_jsonpath_parser');

  $t = get_t();

  $requirements['feeds_jsonpath_parser']['title'] = $t('JSONPath library');

  $requirements['feeds_jsonpath_parser']['severity'] = REQUIREMENT_OK;

  $requirements['feeds_jsonpath_parser']['value'] = $t('Installed');

  if (!feeds_jsonpath_parser_library_path()) {

    $requirements['feeds_jsonpath_parser']['severity'] = REQUIREMENT_ERROR;

    $requirements['feeds_jsonpath_parser']['description'] = $t('The <a href="@jsonpath">JSONPath</a> plugin is missing. Download <a href="@download">this file</a> and place in sites/all/libraries/jsonpath.', array(

      '@jsonpath' => 'http://goessner.net/articles/JsonPath/',

      '@download' => 'http://jsonpath.googlecode.com/svn/trunk/src/php/jsonpath.php',

    ));

    $requirements['feeds_jsonpath_parser']['value'] = $t('Not installed');

  }

  if ($phase === 'install') {

    unset($requirements['feeds_jsonpath_parser']['value']);

  }

/**

 * Returns the path of the JSONPath library.

 *

 * @return string|bool

 *   The relative path of the JSONPath directory, or false if not found.

 */

function feeds_jsonpath_parser_library_path() {

  $libraries_path = module_exists('libraries') ? libraries_get_path('jsonpath') : FALSE;

  if ($libraries_path && is_dir($libraries_path)) {

    $path = $libraries_path;

  }

  elseif (is_dir(DRUPAL_ROOT . '/sites/all/libraries/jsonpath')) {

    $path = DRUPAL_ROOT . '/sites/all/libraries/jsonpath';

  }

  // This is defined when simpletest downloads the library for us.

  elseif (variable_get('feeds_jsonpath_library_dir')) {

    $path = variable_get('feeds_jsonpath_library_dir');

  }

  else {

    $search = glob(dirname(__FILE__) . '/jsonpath*.php');

    return is_array($search) ? reset($search) : FALSE;

  }

  if (!isset($path)) {

    return FALSE;

  }

  // Newer forks of JSONPath are all modern and fancy with their autoloaders.

  if (is_file($path . '/vendor/autoload.php')) {

    return $path . '/vendor/autoload.php';

  }

  // Old school. Look for multiple versions.

  foreach (glob($path . '/jsonpath*.php') as $file) {

    return $file;

  }

  return FALSE;

}

  public static function getInfo() {

      'group' => t('Feeds JSONPath Parser'),

    parent::setUp(array('feeds_jsonpath_parser'));

    $this->downloadJsonPath();

  }

  /**

   * Downloads JSONPath.

   */

  protected function downloadJsonPath() {

    // We don't use a variable_set() here since we want this to be a unit test.

    if (variable_get('feeds_jsonpath_library_dir')) {

      return;

    }

    $url = 'https://jsonpath.googlecode.com/svn/trunk/src/php/jsonpath.php';

    $filename = 'jsonpath.php';

    // Avoid downloading the file dozens of times.

    $library_dir = $this->originalFileDirectory . '/simpletest/feeds_jsonpath_parser';

    $jsonpath_library_dir = DRUPAL_ROOT . '/' . $library_dir . '/jsonpath';

    if (!file_exists(DRUPAL_ROOT . '/' . $library_dir)) {

      drupal_mkdir(DRUPAL_ROOT . '/' . $library_dir);

    }

    if (!file_exists($jsonpath_library_dir)) {

      drupal_mkdir($jsonpath_library_dir);

    }

    // Local file name.

    $local_file = $jsonpath_library_dir . '/' . $filename;

    // Begin single threaded code.

    if (function_exists('sem_get')) {

      $semaphore = sem_get(ftok(__FILE__, 1));

      sem_acquire($semaphore);

    }

    // Download and extact the archive, but only in one thread.

    if (!file_exists($local_file)) {

      $local_file = system_retrieve_file($url, $local_file, FALSE, FILE_EXISTS_REPLACE);

    }

    if (function_exists('sem_get')) {

      sem_release($semaphore);

    }

    // Verify that the file was successfully downloaded.

    $this->assertTrue(file_exists($local_file), format_string('@file found.', array('@file' => $local_file)));

    // Set the library directory.

    variable_set('feeds_jsonpath_library_dir', $jsonpath_library_dir);

      'jsonpath[allow_override]' => TRUE,

    $edit_url = 'admin/structure/feeds/jsonpath/settings/FeedsJSONPathParser';

    $node_save_text = 'Basic page Testing JSONPath Parser has been updated.';

    $this->postAndCheck($edit_url, $edit, 'Save', 'Your changes have been saved.');

    $path = $GLOBALS['base_url'] . '/' . drupal_get_path('module', 'feeds_jsonpath_parser') . '/tests/feeds_jsonpath_parser';

    $nid = $this->createFeedNode('jsonpath', $path . '/test.json', 'Testing JSONPath Parser');

    $this->drupalPost('node/' . $nid . '/import', array(), 'Import');