<?php 
// $Id: cmis_common.module,v 1.1.4.2 2011-02-20 14:31:43 cfuller12 Exp $

/**
 * Implementation of hook_cmis_info()
 * 
 */
function cmis_common_cmis_info() {
  return array(
    'cmis_common' => array(
      'name' => t('CMIS Common'),
      'module' => 'cmis_common',
      'description' => t('CMIS common client')
    )
  );
}

/**
 * Implementation of hook_cmisapi_invoke().
 * 
 */
function cmis_common_cmisapi_invoke() {
  $args = func_get_args();
  $cmis_method = $args[0];
  $repository_id = (count($args) > 1) ? $args[1] : 'default';

  unset($args[0]);
  unset($args[1]);

  $cmis_repository = cmis_get_repository($repository_id);
  
  // pass repository info from cache 
  if ($cmis_method == 'getRepositoryInfo' && isset($cmis_repository->info)) {
    return $cmis_repository->info;
  }
  
  // cache service instance
  if (!isset($cmis_repository->service)) {
    module_load_include('utils.inc', 'cmis_common');
    
    // CommonCMISService allows other modules to control the way CMISService class
    // calls the CMIS repositories via hook_cmis_service()
    $cmis_repository->service = new CommonCMISService($cmis_repository->settings['url'],
                                                      $cmis_repository->settings['user'],
                                                      $cmis_repository->settings['password']);
  }
  
  return call_user_func_array(array($cmis_repository->service, $cmis_method), $args);
}

/**
 * Implementation of hook_cmis_service($url, $properties, $settings)
 *
 */
function cmis_common_cmis_service($url, $properties, $settings, $dry_run = FALSE) {
  $session = curl_init($url);

  curl_setopt($session, CURLOPT_HEADER, false);
  curl_setopt($session, CURLOPT_RETURNTRANSFER, true);
  if ($settings['user']) {
    curl_setopt($session, CURLOPT_USERPWD, $settings['user'] . ":" . $settings['password']);
  }
  
  curl_setopt($session, CURLOPT_CUSTOMREQUEST, $properties['method']);
  
  if ($properties['headers']) {
    $headers = array();
    foreach($properties['headers'] as $header_name => $header_value) {
      $headers[] = $header_name .': '. $header_value;
    }    
    curl_setopt($session, CURLOPT_HTTPHEADER, $headers);
  }
  
  if ($properties['data']) {
    curl_setopt($session, CURLOPT_POSTFIELDS, $properties['data']);
  }
  
  if ($properties['method'] == "POST") {
    curl_setopt($session, CURLOPT_POST, true);
  }
  
  $retval = new stdClass();
  $retval->url = $url;
  $retval->method = $properties['method'];
  $retval->content_sent = $properties['data'];
  $retval->content_type_sent = $properties['headers']['Content-Type'];
  
  if (!$dry_run) {
    $retval->body = curl_exec($session);
    $retval->code = curl_getinfo($session, CURLINFO_HTTP_CODE);
    $retval->content_type = curl_getinfo($session, CURLINFO_CONTENT_TYPE);
    $retval->content_length = curl_getinfo($session, CURLINFO_CONTENT_LENGTH_DOWNLOAD);
    curl_close($session);
    
    if (!in_array($retval->code, array(200,201,204))) {
      throw new CMISException(t("HTTP call to [@url] returned [@code]. Response: @response", array(
        '@code' => $retval->code,
        '@response' => $retval->body,
        '@url' => $url
      )));
    }
  }
  else {
    $retval->body = NULL;
    $retval->curl_session = $session;
    $retval->code = 0;
    $retval->content_type = NULL;
    $retval->content_length = NULL;
  }

  return $retval;
}