nghttp2/src/comp_helper.c

/*
 * nghttp2 - HTTP/2 C Library
 *
 * Copyright (c) 2013 Tatsuhiro Tsujikawa
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
#include "comp_helper.h"
#include <string.h>

static void dump_val(json_t *jent, const char *key, uint8_t *val, size_t len) {
  json_object_set_new(jent, key, json_pack("s#", val, len));
}

json_t *dump_header_table(nghttp2_hd_context *context) {
  json_t *obj, *entries;
  size_t i;

  obj = json_object();
  entries = json_array();
  for (i = 0; i < context->hd_table.len; ++i) {
    nghttp2_hd_entry *ent = nghttp2_hd_table_get(context, i);
    json_t *outent = json_object();
    json_object_set_new(outent, "index", json_integer((json_int_t)(i + 1)));
    dump_val(outent, "name", ent->nv.name, ent->nv.namelen);
    dump_val(outent, "value", ent->nv.value, ent->nv.valuelen);
    json_object_set_new(outent, "size", json_integer((json_int_t)(
                                            ent->nv.namelen + ent->nv.valuelen +
                                            NGHTTP2_HD_ENTRY_OVERHEAD)));
    json_array_append_new(entries, outent);
  }
  json_object_set_new(obj, "entries", entries);
  json_object_set_new(obj, "size",
                      json_integer((json_int_t)(context->hd_table_bufsize)));
  json_object_set_new(obj, "max_size", json_integer((json_int_t)(
                                           context->hd_table_bufsize_max)));
  return obj;
}

json_t *dump_header(const uint8_t *name, size_t namelen, const uint8_t *value,
                    size_t valuelen) {
  json_t *nv_pair = json_object();
  char *cname = malloc(namelen + 1);
  if (cname == NULL) {
    return NULL;
  }
  memcpy(cname, name, namelen);
  cname[namelen] = '\0';
  json_object_set_new(nv_pair, cname, json_pack("s#", value, valuelen));
  free(cname);
  return nv_pair;
}

json_t *dump_headers(const nghttp2_nv *nva, size_t nvlen) {
  json_t *headers;
  size_t i;

  headers = json_array();
  for (i = 0; i < nvlen; ++i) {
    json_array_append_new(headers, dump_header(nva[i].name, nva[i].namelen,
                                               nva[i].value, nva[i].valuelen));
  }
  return headers;
}

void output_json_header(void) {
  printf("{\n"
         "  \"cases\":\n"
         "  [\n");
}

void output_json_footer(void) {
  printf("  ]\n"
         "}\n");
}