1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* SPDX-License-Identifier: curl
*
***************************************************************************/
#include "first.h"
#include "testtrace.h"
#include "memdebug.h"
static FILE *out_download;
static int setup_h2_serverpush(CURL *hnd, const char *url)
{
out_download = fopen("download_0.data", "wb");
if(!out_download)
return 1; /* failed */
curl_easy_setopt(hnd, CURLOPT_URL, url);
curl_easy_setopt(hnd, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYPEER, 0L);
curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYHOST, 0L);
curl_easy_setopt(hnd, CURLOPT_WRITEDATA, out_download);
/* please be verbose */
curl_easy_setopt(hnd, CURLOPT_VERBOSE, 1L);
curl_easy_setopt(hnd, CURLOPT_DEBUGFUNCTION, libtest_debug_cb);
curl_easy_setopt(hnd, CURLOPT_DEBUGDATA, &debug_config);
/* wait for pipe connection to confirm */
curl_easy_setopt(hnd, CURLOPT_PIPEWAIT, 1L);
return 0; /* all is good */
}
static FILE *out_push;
/* called when there's an incoming push */
static int server_push_callback(CURL *parent,
CURL *easy,
size_t num_headers,
struct curl_pushheaders *headers,
void *userp)
{
char *headp;
size_t i;
int *transfers = (int *)userp;
char filename[128];
static unsigned int count = 0;
int rv;
(void)parent; /* we have no use for this */
curl_msnprintf(filename, sizeof(filename) - 1, "push%u", count++);
/* here's a new stream, save it in a new file for each new push */
out_push = fopen(filename, "wb");
if(!out_push) {
/* if we cannot save it, deny it */
curl_mfprintf(stderr, "Failed to create output file for push\n");
rv = CURL_PUSH_DENY;
goto out;
}
/* write to this file */
curl_easy_setopt(easy, CURLOPT_WRITEDATA, out_push);
curl_mfprintf(stderr, "**** push callback approves stream %u, "
"got %zu headers!\n", count, num_headers);
for(i = 0; i < num_headers; i++) {
headp = curl_pushheader_bynum(headers, i);
curl_mfprintf(stderr, "**** header %zu: %s\n", i, headp);
}
headp = curl_pushheader_byname(headers, ":path");
if(headp) {
curl_mfprintf(stderr, "**** The PATH is %s\n",
headp /* skip :path + colon */);
}
(*transfers)++; /* one more */
rv = CURL_PUSH_OK;
out:
return rv;
}
/*
* Download a file over HTTP/2, take care of server push.
*/
static CURLcode test_cli_h2_serverpush(const char *URL)
{
CURL *easy;
CURLM *multi_handle;
int transfers = 1; /* we start with one */
struct CURLMsg *m;
debug_config.nohex = TRUE;
debug_config.tracetime = FALSE;
if(!URL) {
curl_mfprintf(stderr, "need URL as argument\n");
return (CURLcode)2;
}
multi_handle = curl_multi_init();
curl_multi_setopt(multi_handle, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
curl_multi_setopt(multi_handle, CURLMOPT_PUSHFUNCTION, server_push_callback);
curl_multi_setopt(multi_handle, CURLMOPT_PUSHDATA, &transfers);
easy = curl_easy_init();
if(setup_h2_serverpush(easy, URL)) {
fclose(out_download);
curl_mfprintf(stderr, "failed\n");
return (CURLcode)1;
}
curl_multi_add_handle(multi_handle, easy);
do {
int still_running; /* keep number of running handles */
CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
if(still_running)
/* wait for activity, timeout or "nothing" */
mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
if(mc)
break;
/*
* A little caution when doing server push is that libcurl itself has
* created and added one or more easy handles but we need to clean them up
* when we are done.
*/
do {
int msgq = 0;
m = curl_multi_info_read(multi_handle, &msgq);
if(m && (m->msg == CURLMSG_DONE)) {
CURL *e = m->easy_handle;
transfers--;
curl_multi_remove_handle(multi_handle, e);
curl_easy_cleanup(e);
}
} while(m);
} while(transfers); /* as long as we have transfers going */
curl_multi_cleanup(multi_handle);
fclose(out_download);
if(out_push)
fclose(out_push);
return CURLE_OK;
}
|
