1 files changed, 133 insertions, 0 deletions
diff --git a/src/comp_helper.c b/src/comp_helper.c
new file mode 100644
index 0000000..98db08a
--- /dev/null
+++ b/src/comp_helper.c
@@ -0,0 +1,133 @@
+/*
+ * 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));
+}
+
+#define NGHTTP2_HD_ENTRY_OVERHEAD 32
+
+json_t *dump_deflate_header_table(nghttp2_hd_deflater *deflater) {
+  json_t *obj, *entries;
+  size_t i;
+  size_t len = nghttp2_hd_deflate_get_num_table_entries(deflater);
+
+  obj = json_object();
+  entries = json_array();
+  /* The first index of dynamic table is 62 */
+  for (i = 62; i <= len; ++i) {
+    const nghttp2_nv *nv = nghttp2_hd_deflate_get_table_entry(deflater, i);
+    json_t *outent = json_object();
+    json_object_set_new(outent, "index", json_integer((json_int_t)i));
+    dump_val(outent, "name", nv->name, nv->namelen);
+    dump_val(outent, "value", nv->value, nv->valuelen);
+    json_object_set_new(outent, "size",
+                        json_integer((json_int_t)(nv->namelen + 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)nghttp2_hd_deflate_get_dynamic_table_size(deflater)));
+  json_object_set_new(
+      obj, "max_size",
+      json_integer(
+          (json_int_t)nghttp2_hd_deflate_get_max_dynamic_table_size(deflater)));
+
+  return obj;
+}
+
+json_t *dump_inflate_header_table(nghttp2_hd_inflater *inflater) {
+  json_t *obj, *entries;
+  size_t i;
+  size_t len = nghttp2_hd_inflate_get_num_table_entries(inflater);
+
+  obj = json_object();
+  entries = json_array();
+  /* The first index of dynamic table is 62 */
+  for (i = 62; i <= len; ++i) {
+    const nghttp2_nv *nv = nghttp2_hd_inflate_get_table_entry(inflater, i);
+    json_t *outent = json_object();
+    json_object_set_new(outent, "index", json_integer((json_int_t)i));
+    dump_val(outent, "name", nv->name, nv->namelen);
+    dump_val(outent, "value", nv->value, nv->valuelen);
+    json_object_set_new(outent, "size",
+                        json_integer((json_int_t)(nv->namelen + 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)nghttp2_hd_inflate_get_dynamic_table_size(inflater)));
+  json_object_set_new(
+      obj, "max_size",
+      json_integer(
+          (json_int_t)nghttp2_hd_inflate_get_max_dynamic_table_size(inflater)));
+
+  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");
+}