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))
my_gettimeofday(struct timeval * tp,void * tzp)56 int my_gettimeofday(struct timeval *tp, void *tzp)
57 {
58 (void)tzp;
59 if(tp) {
60 /* Offset between 1601-01-01 and 1970-01-01 in 100 nanosec units */
61 #define _WIN32_FT_OFFSET (116444736000000000)
62 union {
63 CURL_TYPEOF_CURL_OFF_T ns100; /* time since 1 Jan 1601 in 100ns units */
64 FILETIME ft;
65 } _now;
66 GetSystemTimeAsFileTime(&_now.ft);
67 tp->tv_usec = (long)((_now.ns100 / 10) % 1000000);
68 tp->tv_sec = (long)((_now.ns100 - _WIN32_FT_OFFSET) / 10000000);
69 }
70 return 0;
71 }
72 #endif
73
74 struct input {
75 FILE *in;
76 size_t bytes_read; /* count up */
77 CURL *hnd;
78 int num;
79 };
80
81 static
dump(const char * text,int num,unsigned char * ptr,size_t size,char nohex)82 void dump(const char *text, int num, unsigned char *ptr, size_t size,
83 char nohex)
84 {
85 size_t i;
86 size_t c;
87 unsigned int width = 0x10;
88
89 if(nohex)
90 /* without the hex output, we can fit more on screen */
91 width = 0x40;
92
93 fprintf(stderr, "%d %s, %lu bytes (0x%lx)\n",
94 num, text, (unsigned long)size, (unsigned long)size);
95
96 for(i = 0; i<size; i += width) {
97
98 fprintf(stderr, "%4.4lx: ", (unsigned long)i);
99
100 if(!nohex) {
101 /* hex not disabled, show it */
102 for(c = 0; c < width; c++)
103 if(i + c < size)
104 fprintf(stderr, "%02x ", ptr[i + c]);
105 else
106 fputs(" ", stderr);
107 }
108
109 for(c = 0; (c < width) && (i + c < size); c++) {
110 /* check for 0D0A; if found, skip past and start a new line of output */
111 if(nohex && (i + c + 1 < size) && ptr[i + c] == 0x0D &&
112 ptr[i + c + 1] == 0x0A) {
113 i += (c + 2 - width);
114 break;
115 }
116 fprintf(stderr, "%c",
117 (ptr[i + c] >= 0x20) && (ptr[i + c]<0x80)?ptr[i + c]:'.');
118 /* check again for 0D0A, to avoid an extra \n if it's at width */
119 if(nohex && (i + c + 2 < size) && ptr[i + c + 1] == 0x0D &&
120 ptr[i + c + 2] == 0x0A) {
121 i += (c + 3 - width);
122 break;
123 }
124 }
125 fputc('\n', stderr); /* newline */
126 }
127 }
128
129 static
my_trace(CURL * handle,curl_infotype type,char * data,size_t size,void * userp)130 int my_trace(CURL *handle, curl_infotype type,
131 char *data, size_t size,
132 void *userp)
133 {
134 char timebuf[60];
135 const char *text;
136 struct input *i = (struct input *)userp;
137 int num = i->num;
138 static time_t epoch_offset;
139 static int known_offset;
140 struct timeval tv;
141 time_t secs;
142 struct tm *now;
143 (void)handle; /* prevent compiler warning */
144
145 gettimeofday(&tv, NULL);
146 if(!known_offset) {
147 epoch_offset = time(NULL) - tv.tv_sec;
148 known_offset = 1;
149 }
150 secs = epoch_offset + tv.tv_sec;
151 now = localtime(&secs); /* not thread safe but we do not care */
152 curl_msnprintf(timebuf, sizeof(timebuf), "%02d:%02d:%02d.%06ld",
153 now->tm_hour, now->tm_min, now->tm_sec, (long)tv.tv_usec);
154
155 switch(type) {
156 case CURLINFO_TEXT:
157 fprintf(stderr, "%s [%d] Info: %s", timebuf, num, data);
158 return 0;
159 case CURLINFO_HEADER_OUT:
160 text = "=> Send header";
161 break;
162 case CURLINFO_DATA_OUT:
163 text = "=> Send data";
164 break;
165 case CURLINFO_SSL_DATA_OUT:
166 text = "=> Send SSL data";
167 break;
168 case CURLINFO_HEADER_IN:
169 text = "<= Recv header";
170 break;
171 case CURLINFO_DATA_IN:
172 text = "<= Recv data";
173 break;
174 case CURLINFO_SSL_DATA_IN:
175 text = "<= Recv SSL data";
176 break;
177 default: /* in case a new one is introduced to shock us */
178 return 0;
179 }
180
181 dump(text, num, (unsigned char *)data, size, 1);
182 return 0;
183 }
184
read_callback(char * ptr,size_t size,size_t nmemb,void * userp)185 static size_t read_callback(char *ptr, size_t size, size_t nmemb, void *userp)
186 {
187 struct input *i = userp;
188 size_t retcode = fread(ptr, size, nmemb, i->in);
189 i->bytes_read += retcode;
190 return retcode;
191 }
192
setup(struct input * i,int num,const char * upload)193 static void setup(struct input *i, int num, const char *upload)
194 {
195 FILE *out;
196 char url[256];
197 char filename[128];
198 struct stat file_info;
199 curl_off_t uploadsize;
200 CURL *hnd;
201
202 hnd = i->hnd = curl_easy_init();
203 i->num = num;
204 curl_msnprintf(filename, 128, "dl-%d", num);
205 out = fopen(filename, "wb");
206 if(!out) {
207 fprintf(stderr, "error: could not open file %s for writing: %s\n", upload,
208 strerror(errno));
209 exit(1);
210 }
211
212 curl_msnprintf(url, 256, "https://localhost:8443/upload-%d", num);
213
214 /* get the file size of the local file */
215 if(stat(upload, &file_info)) {
216 fprintf(stderr, "error: could not stat file %s: %s\n", upload,
217 strerror(errno));
218 exit(1);
219 }
220
221 uploadsize = file_info.st_size;
222
223 i->in = fopen(upload, "rb");
224 if(!i->in) {
225 fprintf(stderr, "error: could not open file %s for reading: %s\n", upload,
226 strerror(errno));
227 exit(1);
228 }
229
230 /* write to this file */
231 curl_easy_setopt(hnd, CURLOPT_WRITEDATA, out);
232
233 /* we want to use our own read function */
234 curl_easy_setopt(hnd, CURLOPT_READFUNCTION, read_callback);
235 /* read from this file */
236 curl_easy_setopt(hnd, CURLOPT_READDATA, i);
237 /* provide the size of the upload */
238 curl_easy_setopt(hnd, CURLOPT_INFILESIZE_LARGE, uploadsize);
239
240 /* send in the URL to store the upload as */
241 curl_easy_setopt(hnd, CURLOPT_URL, url);
242
243 /* upload please */
244 curl_easy_setopt(hnd, CURLOPT_UPLOAD, 1L);
245
246 /* please be verbose */
247 curl_easy_setopt(hnd, CURLOPT_VERBOSE, 1L);
248 curl_easy_setopt(hnd, CURLOPT_DEBUGFUNCTION, my_trace);
249 curl_easy_setopt(hnd, CURLOPT_DEBUGDATA, i);
250
251 /* HTTP/2 please */
252 curl_easy_setopt(hnd, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
253
254 /* we use a self-signed test server, skip verification during debugging */
255 curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYPEER, 0L);
256 curl_easy_setopt(hnd, CURLOPT_SSL_VERIFYHOST, 0L);
257
258 #if (CURLPIPE_MULTIPLEX > 0)
259 /* wait for pipe connection to confirm */
260 curl_easy_setopt(hnd, CURLOPT_PIPEWAIT, 1L);
261 #endif
262 }
263
264 /*
265 * Upload all files over HTTP/2, using the same physical connection!
266 */
main(int argc,char ** argv)267 int main(int argc, char **argv)
268 {
269 struct input trans[NUM_HANDLES];
270 CURLM *multi_handle;
271 int i;
272 int still_running = 0; /* keep number of running handles */
273 const char *filename = "index.html";
274 int num_transfers;
275
276 if(argc > 1) {
277 /* if given a number, do that many transfers */
278 num_transfers = atoi(argv[1]);
279
280 if(!num_transfers || (num_transfers > NUM_HANDLES))
281 num_transfers = 3; /* a suitable low default */
282
283 if(argc > 2)
284 /* if given a file name, upload this! */
285 filename = argv[2];
286 }
287 else
288 num_transfers = 3;
289
290 /* init a multi stack */
291 multi_handle = curl_multi_init();
292
293 for(i = 0; i<num_transfers; i++) {
294 setup(&trans[i], i, filename);
295
296 /* add the individual transfer */
297 curl_multi_add_handle(multi_handle, trans[i].hnd);
298 }
299
300 curl_multi_setopt(multi_handle, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
301
302 /* We do HTTP/2 so let's stick to one connection per host */
303 curl_multi_setopt(multi_handle, CURLMOPT_MAX_HOST_CONNECTIONS, 1L);
304
305 do {
306 CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
307
308 if(still_running)
309 /* wait for activity, timeout or "nothing" */
310 mc = curl_multi_poll(multi_handle, NULL, 0, 1000, NULL);
311
312 if(mc)
313 break;
314
315 } while(still_running);
316
317 curl_multi_cleanup(multi_handle);
318
319 for(i = 0; i<num_transfers; i++) {
320 curl_multi_remove_handle(multi_handle, trans[i].hnd);
321 curl_easy_cleanup(trans[i].hnd);
322 }
323
324 return 0;
325 }
326
