1 /* SPDX-License-Identifier: LGPL-2.1+ */
3 This file is part of systemd.
5 Copyright 2014 Lennart Poettering
8 #include "alloc-util.h"
11 #include "locale-util.h"
12 #include "string-util.h"
14 static void curl_glue_check_finished(CurlGlue
*g
) {
20 msg
= curl_multi_info_read(g
->curl
, &k
);
24 if (msg
->msg
!= CURLMSG_DONE
)
28 g
->on_finished(g
, msg
->easy_handle
, msg
->data
.result
);
31 static int curl_glue_on_io(sd_event_source
*s
, int fd
, uint32_t revents
, void *userdata
) {
32 CurlGlue
*g
= userdata
;
33 int action
, k
= 0, translated_fd
;
38 translated_fd
= PTR_TO_FD(hashmap_get(g
->translate_fds
, FD_TO_PTR(fd
)));
40 if ((revents
& (EPOLLIN
|EPOLLOUT
)) == (EPOLLIN
|EPOLLOUT
))
41 action
= CURL_POLL_INOUT
;
42 else if (revents
& EPOLLIN
)
43 action
= CURL_POLL_IN
;
44 else if (revents
& EPOLLOUT
)
45 action
= CURL_POLL_OUT
;
49 if (curl_multi_socket_action(g
->curl
, translated_fd
, action
, &k
) < 0) {
50 log_debug("Failed to propagate IO event.");
54 curl_glue_check_finished(g
);
58 static int curl_glue_socket_callback(CURLM
*curl
, curl_socket_t s
, int action
, void *userdata
, void *socketp
) {
60 CurlGlue
*g
= userdata
;
67 io
= hashmap_get(g
->ios
, FD_TO_PTR(s
));
69 if (action
== CURL_POLL_REMOVE
) {
73 fd
= sd_event_source_get_io_fd(io
);
76 sd_event_source_set_enabled(io
, SD_EVENT_OFF
);
77 sd_event_source_unref(io
);
79 hashmap_remove(g
->ios
, FD_TO_PTR(s
));
80 hashmap_remove(g
->translate_fds
, FD_TO_PTR(fd
));
88 r
= hashmap_ensure_allocated(&g
->ios
, &trivial_hash_ops
);
94 r
= hashmap_ensure_allocated(&g
->translate_fds
, &trivial_hash_ops
);
100 if (action
== CURL_POLL_IN
)
102 else if (action
== CURL_POLL_OUT
)
104 else if (action
== CURL_POLL_INOUT
)
105 events
= EPOLLIN
|EPOLLOUT
;
108 if (sd_event_source_set_io_events(io
, events
) < 0)
111 if (sd_event_source_set_enabled(io
, SD_EVENT_ON
) < 0)
114 _cleanup_close_
int fd
= -1;
116 /* When curl needs to remove an fd from us it closes
117 * the fd first, and only then calls into us. This is
118 * nasty, since we cannot pass the fd on to epoll()
119 * anymore. Hence, duplicate the fds here, and keep a
120 * copy for epoll which we control after use. */
122 fd
= fcntl(s
, F_DUPFD_CLOEXEC
, 3);
126 if (sd_event_add_io(g
->event
, &io
, fd
, events
, curl_glue_on_io
, g
) < 0)
129 (void) sd_event_source_set_description(io
, "curl-io");
131 r
= hashmap_put(g
->ios
, FD_TO_PTR(s
), io
);
134 sd_event_source_unref(io
);
138 r
= hashmap_put(g
->translate_fds
, FD_TO_PTR(fd
), FD_TO_PTR(s
));
141 hashmap_remove(g
->ios
, FD_TO_PTR(s
));
142 sd_event_source_unref(io
);
152 static int curl_glue_on_timer(sd_event_source
*s
, uint64_t usec
, void *userdata
) {
153 CurlGlue
*g
= userdata
;
159 if (curl_multi_socket_action(g
->curl
, CURL_SOCKET_TIMEOUT
, 0, &k
) != CURLM_OK
) {
160 log_debug("Failed to propagate timeout.");
164 curl_glue_check_finished(g
);
168 static int curl_glue_timer_callback(CURLM
*curl
, long timeout_ms
, void *userdata
) {
169 CurlGlue
*g
= userdata
;
175 if (timeout_ms
< 0) {
177 if (sd_event_source_set_enabled(g
->timer
, SD_EVENT_OFF
) < 0)
184 usec
= now(clock_boottime_or_monotonic()) + (usec_t
) timeout_ms
* USEC_PER_MSEC
+ USEC_PER_MSEC
- 1;
187 if (sd_event_source_set_time(g
->timer
, usec
) < 0)
190 if (sd_event_source_set_enabled(g
->timer
, SD_EVENT_ONESHOT
) < 0)
193 if (sd_event_add_time(g
->event
, &g
->timer
, clock_boottime_or_monotonic(), usec
, 0, curl_glue_on_timer
, g
) < 0)
196 (void) sd_event_source_set_description(g
->timer
, "curl-timer");
202 CurlGlue
*curl_glue_unref(CurlGlue
*g
) {
209 curl_multi_cleanup(g
->curl
);
211 while ((io
= hashmap_steal_first(g
->ios
))) {
214 fd
= sd_event_source_get_io_fd(io
);
217 hashmap_remove(g
->translate_fds
, FD_TO_PTR(fd
));
220 sd_event_source_unref(io
);
223 hashmap_free(g
->ios
);
225 sd_event_source_unref(g
->timer
);
226 sd_event_unref(g
->event
);
230 int curl_glue_new(CurlGlue
**glue
, sd_event
*event
) {
231 _cleanup_(curl_glue_unrefp
) CurlGlue
*g
= NULL
;
234 g
= new0(CurlGlue
, 1);
239 g
->event
= sd_event_ref(event
);
241 r
= sd_event_default(&g
->event
);
246 g
->curl
= curl_multi_init();
250 if (curl_multi_setopt(g
->curl
, CURLMOPT_SOCKETDATA
, g
) != CURLM_OK
)
253 if (curl_multi_setopt(g
->curl
, CURLMOPT_SOCKETFUNCTION
, curl_glue_socket_callback
) != CURLM_OK
)
256 if (curl_multi_setopt(g
->curl
, CURLMOPT_TIMERDATA
, g
) != CURLM_OK
)
259 if (curl_multi_setopt(g
->curl
, CURLMOPT_TIMERFUNCTION
, curl_glue_timer_callback
) != CURLM_OK
)
267 int curl_glue_make(CURL
**ret
, const char *url
, void *userdata
) {
268 const char *useragent
;
275 c
= curl_easy_init();
279 /* curl_easy_setopt(c, CURLOPT_VERBOSE, 1L); */
281 if (curl_easy_setopt(c
, CURLOPT_URL
, url
) != CURLE_OK
) {
286 if (curl_easy_setopt(c
, CURLOPT_PRIVATE
, userdata
) != CURLE_OK
) {
291 useragent
= strjoina(program_invocation_short_name
, "/" PACKAGE_VERSION
);
292 if (curl_easy_setopt(c
, CURLOPT_USERAGENT
, useragent
) != CURLE_OK
) {
297 if (curl_easy_setopt(c
, CURLOPT_FOLLOWLOCATION
, 1L) != CURLE_OK
) {
306 curl_easy_cleanup(c
);
310 int curl_glue_add(CurlGlue
*g
, CURL
*c
) {
314 if (curl_multi_add_handle(g
->curl
, c
) != CURLM_OK
)
320 void curl_glue_remove_and_free(CurlGlue
*g
, CURL
*c
) {
327 curl_multi_remove_handle(g
->curl
, c
);
329 curl_easy_cleanup(c
);
332 struct curl_slist
*curl_slist_new(const char *first
, ...) {
333 struct curl_slist
*l
;
339 l
= curl_slist_append(NULL
, first
);
346 struct curl_slist
*n
;
349 i
= va_arg(ap
, const char*);
353 n
= curl_slist_append(l
, i
);
356 curl_slist_free_all(l
);
367 int curl_header_strdup(const void *contents
, size_t sz
, const char *field
, char **value
) {
368 const char *p
= contents
;
376 if (memcmp(p
, field
, l
) != 0)
382 if (memchr(p
, 0, sz
))
385 /* Skip over preceeding whitespace */
386 while (sz
> 0 && strchr(WHITESPACE
, p
[0])) {
391 /* Truncate trailing whitespace */
392 while (sz
> 0 && strchr(WHITESPACE
, p
[sz
-1]))
403 int curl_parse_http_time(const char *t
, usec_t
*ret
) {
404 _cleanup_(freelocalep
) locale_t loc
= (locale_t
) 0;
412 loc
= newlocale(LC_TIME_MASK
, "C", (locale_t
) 0);
413 if (loc
== (locale_t
) 0)
417 e
= strptime_l(t
, "%a, %d %b %Y %H:%M:%S %Z", &tm
, loc
);
420 e
= strptime_l(t
, "%A, %d-%b-%y %H:%M:%S %Z", &tm
, loc
);
423 e
= strptime_l(t
, "%a %b %d %H:%M:%S %Y", &tm
, loc
);
428 if (v
== (time_t) -1)
431 *ret
= (usec_t
) v
* USEC_PER_SEC
;