1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at https://curl.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 * SPDX-License-Identifier: curl
22 *
23 ***************************************************************************/
24 /* <DESC>
25 * Multiplexed HTTP/2 uploads over a single connection
26 * </DESC>
27 */
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <string.h>
31 #include <fcntl.h>
32 #include <sys/stat.h>
33 #include <errno.h>
34
35 /* somewhat Unix-specific */
36 #ifndef _MSC_VER
37 #include <sys/time.h>
38 #include <unistd.h>
39 #endif
40
41 /* curl stuff */
42 #include <curl/curl.h>
43 #include <curl/mprintf.h>
44
45 #ifndef CURLPIPE_MULTIPLEX
46 /* This little trick makes sure that we do not enable pipelining for libcurls
47 old enough to not have this symbol. It is _not_ defined to zero in a recent
48 libcurl header. */
49 #define CURLPIPE_MULTIPLEX 0
50 #endif
51
52 #define NUM_HANDLES 1000
53
54 #ifdef _MSC_VER
55 #define gettimeofday(a, b) my_gettimeofday((a), (b))
56 static
my_gettimeofday(struct timeval * tp,void * tzp)57 int my_gettimeofday(struct timeval *tp, void *tzp)
58 {
59 (void)tzp;
60 if(tp) {
61 /* Offset between 1601-01-01 and 1970-01-01 in 100 nanosec units */
62 #define _WIN32_FT_OFFSET (116444736000000000)
63 union {
64 CURL_TYPEOF_CURL_OFF_T ns100; /* time since 1 Jan 1601 in 100ns units */
65 FILETIME ft;
66 } _now;
67 GetSystemTimeAsFileTime(&_now.ft);
68 tp->tv_usec = (long)((_now.ns100 / 10) % 1000000);
69 tp->tv_sec = (long)((_now.ns100 - _WIN32_FT_OFFSET) / 10000000);
70 }
71 return 0;
72 }
73 #endif
74
75 struct input {
76 FILE *in;
77 size_t bytes_read; /* count up */
78 CURL *hnd;
79 int num;
80 };
81
82 static
dump(const char * text,int num,unsigned char * ptr,size_t size,char nohex)83 void dump(const char *text, int num, unsigned char *ptr, size_t size,
84 char nohex)
85 {
86 size_t i;
87 size_t c;
88 unsigned int width = 0x10;
89
90 if(nohex)
91 /* without the hex output, we can fit more on screen */
92 width = 0x40;
93
94 fprintf(stderr, "%d %s, %lu bytes (0x%lx)\n",
95 num, text, (unsigned long)size, (unsigned long)size);
96
97 for(i = 0; i < size; i += width) {
98
99 fprintf(stderr, "%4.4lx: ", (unsigned long)i);
100
101 if(!nohex) {
102 /* hex not disabled, show it */
103 for(c = 0; c < width; c++)
104 if(i + c < size)
105 fprintf(stderr, "%02x ", ptr[i + c]);
106 else
107 fputs(" ", stderr);
108 }
109
110 for(c = 0; (c < width) && (i + c < size); c++) {
111 /* check for 0D0A; if found, skip past and start a new line of output */
112 if(nohex && (i + c + 1 < size) && ptr[i + c] == 0x0D &&
113 ptr[i + c + 1] == 0x0A) {
114 i += (c + 2 - width);
115 break;
116 }
117 fprintf(stderr, "%c",
118 (ptr[i + c] >= 0x20) && (ptr[i + c] < 0x80) ? ptr[i + c] : '.');
119 /* check again for 0D0A, to avoid an extra \n if it's at width */
120 if(nohex && (i + c + 2 < size) && ptr[i + c + 1] == 0x0D &&
121 ptr[i + c + 2] == 0x0A) {
122 i += (c + 3 - width);
123 break;
124 }
125 }
126 fputc('\n', stderr); /* newline */
127 }
128 }
129
130 static
my_trace(CURL * handle,curl_infotype type,char * data,size_t size,void * userp)131 int my_trace(CURL *handle, curl_infotype type,
132 char *data, size_t size,
133 void *userp)
134 {
135 char timebuf[60];
136 const char *text;
137 struct input *i = (struct input *)userp;
138 int num = i->num;
139 static time_t epoch_offset;
140 static int known_offset;
141 struct timeval tv;
142 time_t secs;
143 struct tm *now;
144 (void)handle; /* prevent compiler warning */
145
146 gettimeofday(&tv, NULL);
147 if(!known_offset) {
148 epoch_offset = time(NULL) - tv.tv_sec;
149 known_offset = 1;
150 }
151 secs = epoch_offset + tv.tv_sec;
152 now = localtime(&secs); /* not thread safe but we do not care */
153 curl_msnprintf(timebuf, sizeof(timebuf), "%02d:%02d:%02d.%06ld",
154 now->tm_hour, now->tm_min, now->tm_sec, (long)tv.tv_usec);
155
156 switch(type) {
157 case CURLINFO_TEXT:
158 fprintf(stderr, "%s [%d] Info: %s", timebuf, num, data);
159 return 0;
160 case CURLINFO_HEADER_OUT:
161 text = "=> Send header";
162 break;
163 case CURLINFO_DATA_OUT:
164 text = "=> Send data";
165 break;
166 case CURLINFO_SSL_DATA_OUT:
167 text = "=> Send SSL data";
168 break;
169 case CURLINFO_HEADER_IN:
170 text = "<= Recv header";
171 break;
172 case CURLINFO_DATA_IN:
173 text = "<= Recv data";
174 break;
175 case CURLINFO_SSL_DATA_IN:
176 text = "<= Recv SSL data";
177 break;
178 default: /* in case a new one is introduced to shock us */
179 return 0;
180 }
181
182 dump(text, num, (unsigned char *)data, size, 1);
183 return 0;
184 }
185
read_callback(char * ptr,size_t size,size_t nmemb,void * userp)186 static size_t read_callback(char *ptr, size_t size, size_t nmemb, void *userp)
187 {
188 struct input *i = userp;
189 size_t retcode = fread(ptr, size, nmemb, i->in);
190 i->bytes_read += retcode;
191 return retcode;
192 }
193
setup(struct input * i,int num,const char * upload)194 static void setup(struct input *i, int num, const char *upload)
195 {
196 FILE *out;
197 char url[256];
198 char filename[128];
199 struct stat file_info;
200 curl_off_t uploadsize;
201 CURL *hnd;
202
203 hnd = i->hnd = curl_easy_init();
204 i->num = num;
205 curl_msnprintf(filename, 128, "dl-%d", num);
206 out = fopen(filename, "wb");
207 if(!out) {
208 fprintf(stderr, "error: could not open file %s for writing: %s\n", upload,
209 strerror(errno));
210 exit(1);
211 }
212
213 curl_msnprintf(url, 256, "https://localhost:8443/upload-%d", num);
214
215 /* get the file size of the local file */
216 if(stat(upload, &file_info)) {
217 fprintf(stderr, "error: could not stat file %s: %s\n", upload,
218 strerror(errno));
219 exit(1);
220 }
221
222 uploadsize = file_info.st_size;
223
224 i->in = fopen(upload, "rb");
225 if(!i->in) {
226 fprintf(stderr, "error: could not open file %s for reading: %s\n", upload,
227 strerror(errno));
228 exit(1);
229 }
230
231 /* write to this file */
232 curl_easy_setopt(hnd, CURLOPT_WRITEDATA, out);
233
234 /* we want to use our own read function */
235 curl_easy_setopt(hnd, CURLOPT_READFUNCTION, read_callback);
236 /* read from this file */
237 curl_easy_setopt(hnd, CURLOPT_READDATA, i);
238 /* provide the size of the upload */
239 curl_easy_setopt(hnd, CURLOPT_INFILESIZE_LARGE, uploadsize);
240
241 /* send in the URL to store the upload as */
242 curl_easy_setopt(hnd, CURLOPT_URL, url);
243
244 /* upload please */
245 curl_easy_setopt(hnd, CURLOPT_UPLOAD, 1L);
246
247 /* please be verbose */
248 curl_easy_setopt(hnd, CURLOPT_VERBOSE, 1L);
249 curl_easy_setopt(hnd, CURLOPT_DEBUGFUNCTION, my_trace);
250 curl_easy_setopt(hnd, CURLOPT_DEBUGDATA, i);
251
252 /* HTTP/2 please */
253 curl_easy_setopt(hnd, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
254
255 /* we use a self-signed test server, skip verification during debugging */
256 curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYPEER, 0L);
257 curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYHOST, 0L);
258
259 #if (CURLPIPE_MULTIPLEX > 0)
260 /* wait for pipe connection to confirm */
261 curl_easy_setopt(hnd, CURLOPT_PIPEWAIT, 1L);
262 #endif
263 }
264
265 /*
266 * Upload all files over HTTP/2, using the same physical connection!
267 */
main(int argc,char ** argv)268 int main(int argc, char **argv)
269 {
270 struct input trans[NUM_HANDLES];
271 CURLM *multi_handle;
272 int i;
273 int still_running = 0; /* keep number of running handles */
274 const char *filename = "index.html";
275 int num_transfers;
276
277 if(argc > 1) {
278 /* if given a number, do that many transfers */
279 num_transfers = atoi(argv[1]);
280
281 if(!num_transfers || (num_transfers > NUM_HANDLES))
282 num_transfers = 3; /* a suitable low default */
283
284 if(argc > 2)
285 /* if given a file name, upload this! */
286 filename = argv[2];
287 }
288 else
289 num_transfers = 3;
290
291 /* init a multi stack */
292 multi_handle = curl_multi_init();
293
294 for(i = 0; i < num_transfers; i++) {
295 setup(&trans[i], i, filename);
296
297 /* add the individual transfer */
298 curl_multi_add_handle(multi_handle, trans[i].hnd);
299 }
300
301 curl_multi_setopt(multi_handle, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
302
303 /* We do HTTP/2 so let's stick to one connection per host */
304 curl_multi_setopt(multi_handle, CURLMOPT_MAX_HOST_CONNECTIONS, 1L);
305
306 do {
307 CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
308
309 if(still_running)
310 /* wait for activity, timeout or "nothing" */
311 mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
312
313 if(mc)
314 break;
315
316 } while(still_running);
317
318 curl_multi_cleanup(multi_handle);
319
320 for(i = 0; i < num_transfers; i++) {
321 curl_multi_remove_handle(multi_handle, trans[i].hnd);
322 curl_easy_cleanup(trans[i].hnd);
323 }
324
325 return 0;
326 }
327
