svn_error_t *
svn_ra_serf__get_location_segments(svn_ra_session_t *ra_session,
                                   const char *path,
                                   svn_revnum_t peg_revision,
                                   svn_revnum_t start_rev,
                                   svn_revnum_t end_rev,
                                   svn_location_segment_receiver_t receiver,
                                   void *receiver_baton,
                                   apr_pool_t *pool)
{
  gls_context_t *gls_ctx;
  svn_ra_serf__session_t *session = ra_session->priv;
  svn_ra_serf__handler_t *handler;
  svn_ra_serf__xml_parser_t *parser_ctx;
  serf_bucket_t *buckets;
  const char *relative_url, *basecoll_url, *req_url;
  svn_error_t *err;

  gls_ctx = apr_pcalloc(pool, sizeof(*gls_ctx));
  gls_ctx->receiver = receiver;
  gls_ctx->receiver_baton = receiver_baton;
  gls_ctx->subpool = svn_pool_create(pool);
  gls_ctx->inside_report = FALSE;
  gls_ctx->error = SVN_NO_ERROR;
  gls_ctx->done = FALSE;

  buckets = serf_bucket_aggregate_create(session->bkt_alloc);

  svn_ra_serf__add_open_tag_buckets(buckets, session->bkt_alloc,
                                    "S:get-location-segments",
                                    "xmlns:S", SVN_XML_NAMESPACE,
                                    NULL);

  svn_ra_serf__add_tag_buckets(buckets,
                               "S:path", path,
                               session->bkt_alloc);

  svn_ra_serf__add_tag_buckets(buckets,
                               "S:peg-revision",
                               apr_ltoa(pool, peg_revision),
                               session->bkt_alloc);

  svn_ra_serf__add_tag_buckets(buckets,
                               "S:start-revision",
                               apr_ltoa(pool, start_rev),
                               session->bkt_alloc);

  svn_ra_serf__add_tag_buckets(buckets,
                               "S:end-revision",
                               apr_ltoa(pool, end_rev),
                               session->bkt_alloc);

  svn_ra_serf__add_close_tag_buckets(buckets, session->bkt_alloc,
                                     "S:get-location-segments");

  SVN_ERR(svn_ra_serf__get_baseline_info(&basecoll_url, &relative_url, session,
                                         NULL, NULL, peg_revision, NULL, pool));

  req_url = svn_path_url_add_component(basecoll_url, relative_url, pool);

  handler = apr_pcalloc(pool, sizeof(*handler));

  handler->method = "REPORT";
  handler->path = req_url;
  handler->body_buckets = buckets;
  handler->body_type = "text/xml";
  handler->conn = session->conns[0];
  handler->session = session;

  parser_ctx = apr_pcalloc(pool, sizeof(*parser_ctx));

  parser_ctx->pool = pool;
  parser_ctx->user_data = gls_ctx;
  parser_ctx->start = start_gls;
  parser_ctx->end = end_gls;
  parser_ctx->status_code = &gls_ctx->status_code;
  parser_ctx->done = &gls_ctx->done;

  handler->response_handler = svn_ra_serf__handle_xml_parser;
  handler->response_baton = parser_ctx;

  svn_ra_serf__request_create(handler);

  err = svn_ra_serf__context_run_wait(&gls_ctx->done, session, pool);

  if (gls_ctx->error || parser_ctx->error)
    {
      svn_error_clear(err);
      err = SVN_NO_ERROR;
      SVN_ERR(gls_ctx->error);
      SVN_ERR(parser_ctx->error);
    }

  if (gls_ctx->inside_report)
    err = svn_error_createf(SVN_ERR_RA_DAV_REQUEST_FAILED, NULL,
                            _("Location segment report failed on '%s'@'%ld'"),
                              path, peg_revision);

  SVN_ERR(svn_ra_serf__error_on_status(gls_ctx->status_code, handler->path));

  svn_pool_destroy(gls_ctx->subpool);

  if (err && (err->apr_err == SVN_ERR_UNSUPPORTED_FEATURE))
    return svn_error_create(SVN_ERR_RA_NOT_IMPLEMENTED, err, NULL);

  return err;
}
svn_error_t *
svn_ra_serf__get_locations(svn_ra_session_t *ra_session,
                           apr_hash_t **locations,
                           const char *path,
                           svn_revnum_t peg_revision,
                           const apr_array_header_t *location_revisions,
                           apr_pool_t *pool)
{
    loc_context_t *loc_ctx;
    svn_ra_serf__session_t *session = ra_session->priv;
    svn_ra_serf__handler_t *handler;
    svn_ra_serf__xml_parser_t *parser_ctx;
    const char *relative_url, *basecoll_url, *req_url;
    svn_error_t *err;

    loc_ctx = apr_pcalloc(pool, sizeof(*loc_ctx));
    loc_ctx->pool = pool;
    loc_ctx->path = path;
    loc_ctx->peg_revision = peg_revision;
    loc_ctx->location_revisions = location_revisions;
    loc_ctx->done = FALSE;
    loc_ctx->paths = apr_hash_make(loc_ctx->pool);

    *locations = loc_ctx->paths;

    SVN_ERR(svn_ra_serf__get_baseline_info(&basecoll_url, &relative_url, session,
                                           NULL, NULL, peg_revision, NULL,
                                           pool));

    req_url = svn_path_url_add_component2(basecoll_url, relative_url, pool);

    handler = apr_pcalloc(pool, sizeof(*handler));

    handler->method = "REPORT";
    handler->path = req_url;
    handler->body_delegate = create_get_locations_body;
    handler->body_delegate_baton = loc_ctx;
    handler->body_type = "text/xml";
    handler->conn = session->conns[0];
    handler->session = session;

    parser_ctx = apr_pcalloc(pool, sizeof(*parser_ctx));

    parser_ctx->pool = pool;
    parser_ctx->user_data = loc_ctx;
    parser_ctx->start = start_getloc;
    parser_ctx->end = end_getloc;
    parser_ctx->status_code = &loc_ctx->status_code;
    parser_ctx->done = &loc_ctx->done;

    handler->response_handler = svn_ra_serf__handle_xml_parser;
    handler->response_baton = parser_ctx;

    svn_ra_serf__request_create(handler);

    err = svn_ra_serf__context_run_wait(&loc_ctx->done, session, pool);

    SVN_ERR(svn_error_compose_create(
                svn_ra_serf__error_on_status(loc_ctx->status_code,
                        req_url,
                        parser_ctx->location),
                err));

    return SVN_NO_ERROR;
}
svn_error_t *
svn_ra_serf__get_location_segments(svn_ra_session_t *ra_session,
                                   const char *path,
                                   svn_revnum_t peg_revision,
                                   svn_revnum_t start_rev,
                                   svn_revnum_t end_rev,
                                   svn_location_segment_receiver_t receiver,
                                   void *receiver_baton,
                                   apr_pool_t *pool)
{
  gls_context_t *gls_ctx;
  svn_ra_serf__session_t *session = ra_session->priv;
  svn_ra_serf__handler_t *handler;
  svn_ra_serf__xml_parser_t *parser_ctx;
  const char *relative_url, *basecoll_url, *req_url;
  svn_error_t *err, *err2;

  gls_ctx = apr_pcalloc(pool, sizeof(*gls_ctx));
  gls_ctx->path = path;
  gls_ctx->peg_revision = peg_revision;
  gls_ctx->start_rev = start_rev;
  gls_ctx->end_rev = end_rev;
  gls_ctx->receiver = receiver;
  gls_ctx->receiver_baton = receiver_baton;
  gls_ctx->subpool = svn_pool_create(pool);
  gls_ctx->inside_report = FALSE;
  gls_ctx->done = FALSE;

  SVN_ERR(svn_ra_serf__get_baseline_info(&basecoll_url, &relative_url, session,
                                         NULL, NULL, peg_revision, NULL, pool));

  req_url = svn_path_url_add_component2(basecoll_url, relative_url, pool);

  handler = apr_pcalloc(pool, sizeof(*handler));

  handler->method = "REPORT";
  handler->path = req_url;
  handler->body_delegate = create_gls_body;
  handler->body_delegate_baton = gls_ctx;
  handler->body_type = "text/xml";
  handler->conn = session->conns[0];
  handler->session = session;

  parser_ctx = apr_pcalloc(pool, sizeof(*parser_ctx));

  parser_ctx->pool = pool;
  parser_ctx->user_data = gls_ctx;
  parser_ctx->start = start_gls;
  parser_ctx->end = end_gls;
  parser_ctx->status_code = &gls_ctx->status_code;
  parser_ctx->done = &gls_ctx->done;

  handler->response_handler = svn_ra_serf__handle_xml_parser;
  handler->response_baton = parser_ctx;

  svn_ra_serf__request_create(handler);

  err = svn_ra_serf__context_run_wait(&gls_ctx->done, session, pool);

  if (gls_ctx->inside_report)
    err = svn_error_createf(SVN_ERR_RA_DAV_REQUEST_FAILED, err,
                            _("Location segment report failed on '%s'@'%ld'"),
                              path, peg_revision);

  err2 = svn_ra_serf__error_on_status(gls_ctx->status_code,
                                      handler->path,
                                      parser_ctx->location);
  if (err2)
    {
      /* Prefer err2 to err. */
      svn_error_clear(err);
      return err2;
    }

  svn_pool_destroy(gls_ctx->subpool);

  if (err && (err->apr_err == SVN_ERR_UNSUPPORTED_FEATURE))
    return svn_error_create(SVN_ERR_RA_NOT_IMPLEMENTED, err, NULL);

  return err;
}