1 /*
2  * nghttp3
3  *
4  * Copyright (c) 2019 nghttp3 contributors
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 "nghttp3_test_helper.h"
26 
27 #include <string.h>
28 #include <assert.h>
29 
30 #include "nghttp3_str.h"
31 #include "nghttp3_conv.h"
32 
nghttp3_write_frame(nghttp3_buf * dest,nghttp3_frame * fr)33 void nghttp3_write_frame(nghttp3_buf *dest, nghttp3_frame *fr) {
34   switch (fr->hd.type) {
35   case NGHTTP3_FRAME_SETTINGS:
36     nghttp3_frame_write_settings_len(&fr->hd.length, &fr->settings);
37     dest->last = nghttp3_frame_write_settings(dest->last, &fr->settings);
38     break;
39   case NGHTTP3_FRAME_GOAWAY:
40     nghttp3_frame_write_goaway_len(&fr->hd.length, &fr->goaway);
41     dest->last = nghttp3_frame_write_goaway(dest->last, &fr->goaway);
42     break;
43   case NGHTTP3_FRAME_PRIORITY_UPDATE:
44   case NGHTTP3_FRAME_PRIORITY_UPDATE_PUSH_ID:
45     nghttp3_frame_write_priority_update_len(&fr->hd.length,
46                                             &fr->priority_update);
47     dest->last =
48         nghttp3_frame_write_priority_update(dest->last, &fr->priority_update);
49     break;
50   default:
51     assert(0);
52   }
53 }
54 
nghttp3_write_frame_qpack(nghttp3_buf * dest,nghttp3_qpack_encoder * qenc,int64_t stream_id,nghttp3_frame * fr)55 void nghttp3_write_frame_qpack(nghttp3_buf *dest, nghttp3_qpack_encoder *qenc,
56                                int64_t stream_id, nghttp3_frame *fr) {
57   int rv;
58   const nghttp3_nv *nva;
59   size_t nvlen;
60   nghttp3_buf pbuf, rbuf, ebuf;
61   const nghttp3_mem *mem = nghttp3_mem_default();
62   (void)rv;
63 
64   switch (fr->hd.type) {
65   case NGHTTP3_FRAME_HEADERS:
66     nva = fr->headers.nva;
67     nvlen = fr->headers.nvlen;
68     break;
69   default:
70     assert(0);
71     abort();
72   }
73 
74   nghttp3_buf_init(&pbuf);
75   nghttp3_buf_init(&rbuf);
76   nghttp3_buf_init(&ebuf);
77 
78   rv = nghttp3_qpack_encoder_encode(qenc, &pbuf, &rbuf, &ebuf, stream_id, nva,
79                                     nvlen);
80   assert(0 == rv);
81   assert(0 == nghttp3_buf_len(&ebuf));
82 
83   fr->hd.length = (int64_t)(nghttp3_buf_len(&pbuf) + nghttp3_buf_len(&rbuf));
84 
85   dest->last = nghttp3_frame_write_hd(dest->last, &fr->hd);
86   dest->last = nghttp3_cpymem(dest->last, pbuf.pos, nghttp3_buf_len(&pbuf));
87   dest->last = nghttp3_cpymem(dest->last, rbuf.pos, nghttp3_buf_len(&rbuf));
88 
89   nghttp3_buf_free(&rbuf, mem);
90   nghttp3_buf_free(&pbuf, mem);
91 }
92 
nghttp3_write_frame_qpack_dyn(nghttp3_buf * dest,nghttp3_buf * ebuf,nghttp3_qpack_encoder * qenc,int64_t stream_id,nghttp3_frame * fr)93 void nghttp3_write_frame_qpack_dyn(nghttp3_buf *dest, nghttp3_buf *ebuf,
94                                    nghttp3_qpack_encoder *qenc,
95                                    int64_t stream_id, nghttp3_frame *fr) {
96   int rv;
97   const nghttp3_nv *nva;
98   size_t nvlen;
99   nghttp3_buf pbuf, rbuf;
100   const nghttp3_mem *mem = nghttp3_mem_default();
101   (void)rv;
102 
103   switch (fr->hd.type) {
104   case NGHTTP3_FRAME_HEADERS:
105     nva = fr->headers.nva;
106     nvlen = fr->headers.nvlen;
107     break;
108   default:
109     assert(0);
110     abort();
111   }
112 
113   nghttp3_buf_init(&pbuf);
114   nghttp3_buf_init(&rbuf);
115 
116   rv = nghttp3_qpack_encoder_encode(qenc, &pbuf, &rbuf, ebuf, stream_id, nva,
117                                     nvlen);
118   assert(0 == rv);
119 
120   fr->hd.length = (int64_t)(nghttp3_buf_len(&pbuf) + nghttp3_buf_len(&rbuf));
121 
122   dest->last = nghttp3_frame_write_hd(dest->last, &fr->hd);
123   dest->last = nghttp3_cpymem(dest->last, pbuf.pos, nghttp3_buf_len(&pbuf));
124   dest->last = nghttp3_cpymem(dest->last, rbuf.pos, nghttp3_buf_len(&rbuf));
125 
126   nghttp3_buf_free(&rbuf, mem);
127   nghttp3_buf_free(&pbuf, mem);
128 }
129 
nghttp3_write_frame_data(nghttp3_buf * dest,size_t len)130 void nghttp3_write_frame_data(nghttp3_buf *dest, size_t len) {
131   nghttp3_frame_data fr;
132 
133   fr.hd.type = NGHTTP3_FRAME_DATA;
134   fr.hd.length = (int64_t)len;
135 
136   dest->last = nghttp3_frame_write_hd(dest->last, &fr.hd);
137   memset(dest->last, 0, len);
138   dest->last += len;
139 }
140