diff options
Diffstat (limited to 'src/import/curl-util.c')
| -rw-r--r-- | src/import/curl-util.c | 449 |
1 files changed, 0 insertions, 449 deletions
diff --git a/src/import/curl-util.c b/src/import/curl-util.c deleted file mode 100644 index d390cfb1f3..0000000000 --- a/src/import/curl-util.c +++ /dev/null @@ -1,449 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2014 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "curl-util.h" - -static void curl_glue_check_finished(CurlGlue *g) { - CURLMsg *msg; - int k = 0; - - assert(g); - - msg = curl_multi_info_read(g->curl, &k); - if (!msg) - return; - - if (msg->msg != CURLMSG_DONE) - return; - - if (g->on_finished) - g->on_finished(g, msg->easy_handle, msg->data.result); -} - -static int curl_glue_on_io(sd_event_source *s, int fd, uint32_t revents, void *userdata) { - CurlGlue *g = userdata; - int action, k = 0, translated_fd; - - assert(s); - assert(g); - - translated_fd = PTR_TO_INT(hashmap_get(g->translate_fds, INT_TO_PTR(fd+1))); - assert(translated_fd > 0); - translated_fd--; - - if ((revents & (EPOLLIN|EPOLLOUT)) == (EPOLLIN|EPOLLOUT)) - action = CURL_POLL_INOUT; - else if (revents & EPOLLIN) - action = CURL_POLL_IN; - else if (revents & EPOLLOUT) - action = CURL_POLL_OUT; - else - action = 0; - - if (curl_multi_socket_action(g->curl, translated_fd, action, &k) < 0) { - log_debug("Failed to propagate IO event."); - return -EINVAL; - } - - curl_glue_check_finished(g); - return 0; -} - -static int curl_glue_socket_callback(CURLM *curl, curl_socket_t s, int action, void *userdata, void *socketp) { - sd_event_source *io; - CurlGlue *g = userdata; - uint32_t events = 0; - int r; - - assert(curl); - assert(g); - - io = hashmap_get(g->ios, INT_TO_PTR(s+1)); - - if (action == CURL_POLL_REMOVE) { - if (io) { - int fd; - - fd = sd_event_source_get_io_fd(io); - assert(fd >= 0); - - sd_event_source_set_enabled(io, SD_EVENT_OFF); - sd_event_source_unref(io); - - hashmap_remove(g->ios, INT_TO_PTR(s+1)); - hashmap_remove(g->translate_fds, INT_TO_PTR(fd+1)); - - safe_close(fd); - } - - return 0; - } - - r = hashmap_ensure_allocated(&g->ios, &trivial_hash_ops); - if (r < 0) { - log_oom(); - return -1; - } - - r = hashmap_ensure_allocated(&g->translate_fds, &trivial_hash_ops); - if (r < 0) { - log_oom(); - return -1; - } - - if (action == CURL_POLL_IN) - events = EPOLLIN; - else if (action == CURL_POLL_OUT) - events = EPOLLOUT; - else if (action == CURL_POLL_INOUT) - events = EPOLLIN|EPOLLOUT; - - if (io) { - if (sd_event_source_set_io_events(io, events) < 0) - return -1; - - if (sd_event_source_set_enabled(io, SD_EVENT_ON) < 0) - return -1; - } else { - _cleanup_close_ int fd = -1; - - /* When curl needs to remove an fd from us it closes - * the fd first, and only then calls into us. This is - * nasty, since we cannot pass the fd on to epoll() - * anymore. Hence, duplicate the fds here, and keep a - * copy for epoll which we control after use. */ - - fd = fcntl(s, F_DUPFD_CLOEXEC, 3); - if (fd < 0) - return -1; - - if (sd_event_add_io(g->event, &io, fd, events, curl_glue_on_io, g) < 0) - return -1; - - sd_event_source_set_description(io, "curl-io"); - - r = hashmap_put(g->ios, INT_TO_PTR(s+1), io); - if (r < 0) { - log_oom(); - sd_event_source_unref(io); - return -1; - } - - r = hashmap_put(g->translate_fds, INT_TO_PTR(fd+1), INT_TO_PTR(s+1)); - if (r < 0) { - log_oom(); - hashmap_remove(g->ios, INT_TO_PTR(s+1)); - sd_event_source_unref(io); - return -1; - } - - fd = -1; - } - - return 0; -} - -static int curl_glue_on_timer(sd_event_source *s, uint64_t usec, void *userdata) { - CurlGlue *g = userdata; - int k = 0; - - assert(s); - assert(g); - - if (curl_multi_socket_action(g->curl, CURL_SOCKET_TIMEOUT, 0, &k) != CURLM_OK) { - log_debug("Failed to propagate timeout."); - return -EINVAL; - } - - curl_glue_check_finished(g); - return 0; -} - -static int curl_glue_timer_callback(CURLM *curl, long timeout_ms, void *userdata) { - CurlGlue *g = userdata; - usec_t usec; - - assert(curl); - assert(g); - - if (timeout_ms < 0) { - if (g->timer) { - if (sd_event_source_set_enabled(g->timer, SD_EVENT_OFF) < 0) - return -1; - } - - return 0; - } - - usec = now(clock_boottime_or_monotonic()) + (usec_t) timeout_ms * USEC_PER_MSEC + USEC_PER_MSEC - 1; - - if (g->timer) { - if (sd_event_source_set_time(g->timer, usec) < 0) - return -1; - - if (sd_event_source_set_enabled(g->timer, SD_EVENT_ONESHOT) < 0) - return -1; - } else { - if (sd_event_add_time(g->event, &g->timer, clock_boottime_or_monotonic(), usec, 0, curl_glue_on_timer, g) < 0) - return -1; - - sd_event_source_set_description(g->timer, "curl-timer"); - } - - return 0; -} - -CurlGlue *curl_glue_unref(CurlGlue *g) { - sd_event_source *io; - - if (!g) - return NULL; - - if (g->curl) - curl_multi_cleanup(g->curl); - - while ((io = hashmap_steal_first(g->ios))) { - int fd; - - fd = sd_event_source_get_io_fd(io); - assert(fd >= 0); - - hashmap_remove(g->translate_fds, INT_TO_PTR(fd+1)); - - safe_close(fd); - sd_event_source_unref(io); - } - - hashmap_free(g->ios); - - sd_event_source_unref(g->timer); - sd_event_unref(g->event); - free(g); - - return NULL; -} - -int curl_glue_new(CurlGlue **glue, sd_event *event) { - _cleanup_(curl_glue_unrefp) CurlGlue *g = NULL; - int r; - - g = new0(CurlGlue, 1); - if (!g) - return -ENOMEM; - - if (event) - g->event = sd_event_ref(event); - else { - r = sd_event_default(&g->event); - if (r < 0) - return r; - } - - g->curl = curl_multi_init(); - if (!g->curl) - return -ENOMEM; - - if (curl_multi_setopt(g->curl, CURLMOPT_SOCKETDATA, g) != CURLM_OK) - return -EINVAL; - - if (curl_multi_setopt(g->curl, CURLMOPT_SOCKETFUNCTION, curl_glue_socket_callback) != CURLM_OK) - return -EINVAL; - - if (curl_multi_setopt(g->curl, CURLMOPT_TIMERDATA, g) != CURLM_OK) - return -EINVAL; - - if (curl_multi_setopt(g->curl, CURLMOPT_TIMERFUNCTION, curl_glue_timer_callback) != CURLM_OK) - return -EINVAL; - - *glue = g; - g = NULL; - - return 0; -} - -int curl_glue_make(CURL **ret, const char *url, void *userdata) { - const char *useragent; - CURL *c; - int r; - - assert(ret); - assert(url); - - c = curl_easy_init(); - if (!c) - return -ENOMEM; - - /* curl_easy_setopt(c, CURLOPT_VERBOSE, 1L); */ - - if (curl_easy_setopt(c, CURLOPT_URL, url) != CURLE_OK) { - r = -EIO; - goto fail; - } - - if (curl_easy_setopt(c, CURLOPT_PRIVATE, userdata) != CURLE_OK) { - r = -EIO; - goto fail; - } - - useragent = strjoina(program_invocation_short_name, "/" PACKAGE_VERSION); - if (curl_easy_setopt(c, CURLOPT_USERAGENT, useragent) != CURLE_OK) { - r = -EIO; - goto fail; - } - - if (curl_easy_setopt(c, CURLOPT_FOLLOWLOCATION, 1L) != CURLE_OK) { - r = -EIO; - goto fail; - } - - *ret = c; - return 0; - -fail: - curl_easy_cleanup(c); - return r; -} - -int curl_glue_add(CurlGlue *g, CURL *c) { - assert(g); - assert(c); - - if (curl_multi_add_handle(g->curl, c) != CURLM_OK) - return -EIO; - - return 0; -} - -void curl_glue_remove_and_free(CurlGlue *g, CURL *c) { - assert(g); - - if (!c) - return; - - if (g->curl) - curl_multi_remove_handle(g->curl, c); - - curl_easy_cleanup(c); -} - -struct curl_slist *curl_slist_new(const char *first, ...) { - struct curl_slist *l; - va_list ap; - - if (!first) - return NULL; - - l = curl_slist_append(NULL, first); - if (!l) - return NULL; - - va_start(ap, first); - - for (;;) { - struct curl_slist *n; - const char *i; - - i = va_arg(ap, const char*); - if (!i) - break; - - n = curl_slist_append(l, i); - if (!n) { - va_end(ap); - curl_slist_free_all(l); - return NULL; - } - - l = n; - } - - va_end(ap); - return l; -} - -int curl_header_strdup(const void *contents, size_t sz, const char *field, char **value) { - const char *p = contents; - size_t l; - char *s; - - l = strlen(field); - if (sz < l) - return 0; - - if (memcmp(p, field, l) != 0) - return 0; - - p += l; - sz -= l; - - if (memchr(p, 0, sz)) - return 0; - - /* Skip over preceeding whitespace */ - while (sz > 0 && strchr(WHITESPACE, p[0])) { - p++; - sz--; - } - - /* Truncate trailing whitespace*/ - while (sz > 0 && strchr(WHITESPACE, p[sz-1])) - sz--; - - s = strndup(p, sz); - if (!s) - return -ENOMEM; - - *value = s; - return 1; -} - -int curl_parse_http_time(const char *t, usec_t *ret) { - const char *e; - locale_t loc; - struct tm tm; - time_t v; - - assert(t); - assert(ret); - - loc = newlocale(LC_TIME_MASK, "C", (locale_t) 0); - if (loc == (locale_t) 0) - return -errno; - - /* RFC822 */ - e = strptime_l(t, "%a, %d %b %Y %H:%M:%S %Z", &tm, loc); - if (!e || *e != 0) - /* RFC 850 */ - e = strptime_l(t, "%A, %d-%b-%y %H:%M:%S %Z", &tm, loc); - if (!e || *e != 0) - /* ANSI C */ - e = strptime_l(t, "%a %b %d %H:%M:%S %Y", &tm, loc); - freelocale(loc); - if (!e || *e != 0) - return -EINVAL; - - v = timegm(&tm); - if (v == (time_t) -1) - return -EINVAL; - - *ret = (usec_t) v * USEC_PER_SEC; - return 0; -} |