1 /*
2 * nghttp2 - HTTP/2 C Library
3 *
4 * Copyright (c) 2013 Tatsuhiro Tsujikawa
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining
7 * a copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sublicense, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be
15 * included in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25 #include "comp_helper.h"
26 #include <string.h>
27
dump_val(json_t * jent,const char * key,uint8_t * val,size_t len)28 static void dump_val(json_t *jent, const char *key, uint8_t *val, size_t len) {
29 json_object_set_new(jent, key, json_pack("s#", val, len));
30 }
31
32 #define NGHTTP2_HD_ENTRY_OVERHEAD 32
33
dump_deflate_header_table(nghttp2_hd_deflater * deflater)34 json_t *dump_deflate_header_table(nghttp2_hd_deflater *deflater) {
35 json_t *obj, *entries;
36 size_t i;
37 size_t len = nghttp2_hd_deflate_get_num_table_entries(deflater);
38
39 obj = json_object();
40 entries = json_array();
41 /* The first index of dynamic table is 62 */
42 for (i = 62; i <= len; ++i) {
43 const nghttp2_nv *nv = nghttp2_hd_deflate_get_table_entry(deflater, i);
44 json_t *outent = json_object();
45 json_object_set_new(outent, "index", json_integer((json_int_t)i));
46 dump_val(outent, "name", nv->name, nv->namelen);
47 dump_val(outent, "value", nv->value, nv->valuelen);
48 json_object_set_new(outent, "size",
49 json_integer((json_int_t)(nv->namelen + nv->valuelen +
50 NGHTTP2_HD_ENTRY_OVERHEAD)));
51 json_array_append_new(entries, outent);
52 }
53 json_object_set_new(obj, "entries", entries);
54 json_object_set_new(
55 obj, "size",
56 json_integer(
57 (json_int_t)nghttp2_hd_deflate_get_dynamic_table_size(deflater)));
58 json_object_set_new(
59 obj, "max_size",
60 json_integer(
61 (json_int_t)nghttp2_hd_deflate_get_max_dynamic_table_size(deflater)));
62
63 return obj;
64 }
65
dump_inflate_header_table(nghttp2_hd_inflater * inflater)66 json_t *dump_inflate_header_table(nghttp2_hd_inflater *inflater) {
67 json_t *obj, *entries;
68 size_t i;
69 size_t len = nghttp2_hd_inflate_get_num_table_entries(inflater);
70
71 obj = json_object();
72 entries = json_array();
73 /* The first index of dynamic table is 62 */
74 for (i = 62; i <= len; ++i) {
75 const nghttp2_nv *nv = nghttp2_hd_inflate_get_table_entry(inflater, i);
76 json_t *outent = json_object();
77 json_object_set_new(outent, "index", json_integer((json_int_t)i));
78 dump_val(outent, "name", nv->name, nv->namelen);
79 dump_val(outent, "value", nv->value, nv->valuelen);
80 json_object_set_new(outent, "size",
81 json_integer((json_int_t)(nv->namelen + nv->valuelen +
82 NGHTTP2_HD_ENTRY_OVERHEAD)));
83 json_array_append_new(entries, outent);
84 }
85 json_object_set_new(obj, "entries", entries);
86 json_object_set_new(
87 obj, "size",
88 json_integer(
89 (json_int_t)nghttp2_hd_inflate_get_dynamic_table_size(inflater)));
90 json_object_set_new(
91 obj, "max_size",
92 json_integer(
93 (json_int_t)nghttp2_hd_inflate_get_max_dynamic_table_size(inflater)));
94
95 return obj;
96 }
97
dump_header(const uint8_t * name,size_t namelen,const uint8_t * value,size_t valuelen)98 json_t *dump_header(const uint8_t *name, size_t namelen, const uint8_t *value,
99 size_t valuelen) {
100 json_t *nv_pair = json_object();
101 char *cname = malloc(namelen + 1);
102 if (cname == NULL) {
103 return NULL;
104 }
105 memcpy(cname, name, namelen);
106 cname[namelen] = '\0';
107 json_object_set_new(nv_pair, cname, json_pack("s#", value, valuelen));
108 free(cname);
109 return nv_pair;
110 }
111
dump_headers(const nghttp2_nv * nva,size_t nvlen)112 json_t *dump_headers(const nghttp2_nv *nva, size_t nvlen) {
113 json_t *headers;
114 size_t i;
115
116 headers = json_array();
117 for (i = 0; i < nvlen; ++i) {
118 json_array_append_new(headers, dump_header(nva[i].name, nva[i].namelen,
119 nva[i].value, nva[i].valuelen));
120 }
121 return headers;
122 }
123
output_json_header(void)124 void output_json_header(void) {
125 printf("{\n"
126 " \"cases\":\n"
127 " [\n");
128 }
129
output_json_footer(void)130 void output_json_footer(void) {
131 printf(" ]\n"
132 "}\n");
133 }
134