diff options
Diffstat (limited to 'test-curl/test/src')
| -rw-r--r-- | test-curl/test/src/example.c | 383 | ||||
| -rw-r--r-- | test-curl/test/src/test.c | 197 |
2 files changed, 580 insertions, 0 deletions
diff --git a/test-curl/test/src/example.c b/test-curl/test/src/example.c new file mode 100644 index 0000000..f5496af --- /dev/null +++ b/test-curl/test/src/example.c @@ -0,0 +1,383 @@ +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <sys/time.h> +#include <time.h> +#include <unistd.h> +#include <sys/poll.h> +#include <curl/curl.h> +#include <event2/event.h> +#include <fcntl.h> +#include <sys/stat.h> +#include <errno.h> + + +#define MSG_OUT stdout + + +/* Global information, common to all connections */ +typedef struct _GlobalInfo +{ + struct event_base *evbase; + struct event *fifo_event; + struct event *timer_event; + CURLM *multi; + int still_running; + FILE *input; +} GlobalInfo; + + +/* Information associated with a specific easy handle */ +typedef struct _ConnInfo +{ + CURL *easy; + char *url; + GlobalInfo *global; + char error[CURL_ERROR_SIZE]; +} ConnInfo; + + +/* Information associated with a specific socket */ +typedef struct _SockInfo +{ + curl_socket_t sockfd; + CURL *easy; + int action; + long timeout; + struct event *ev; + int evset; + GlobalInfo *global; +} SockInfo; + + + +/* Update the event timer after curl_multi library calls */ +static int multi_timer_cb(CURLM *multi, long timeout_ms, GlobalInfo *g) +{ + struct timeval timeout; + (void)multi; /* unused */ + + timeout.tv_sec = timeout_ms/1000; + timeout.tv_usec = (timeout_ms%1000)*1000; + fprintf(MSG_OUT, "multi_timer_cb: Setting timeout to %ld ms\n", timeout_ms); + evtimer_add(g->timer_event, &timeout); + return 0; +} + +/* Die if we get a bad CURLMcode somewhere */ +static void mcode_or_die(const char *where, CURLMcode code) +{ + if(CURLM_OK != code) { + const char *s; + switch(code) { + case CURLM_BAD_HANDLE: s="CURLM_BAD_HANDLE"; break; + case CURLM_BAD_EASY_HANDLE: s="CURLM_BAD_EASY_HANDLE"; break; + case CURLM_OUT_OF_MEMORY: s="CURLM_OUT_OF_MEMORY"; break; + case CURLM_INTERNAL_ERROR: s="CURLM_INTERNAL_ERROR"; break; + case CURLM_UNKNOWN_OPTION: s="CURLM_UNKNOWN_OPTION"; break; + case CURLM_LAST: s="CURLM_LAST"; break; + default: s="CURLM_unknown"; + break; + case CURLM_BAD_SOCKET: s="CURLM_BAD_SOCKET"; + fprintf(MSG_OUT, "ERROR: %s returns %s\n", where, s); + /* ignore this error */ + return; + } + fprintf(MSG_OUT, "ERROR: %s returns %s\n", where, s); + exit(code); + } +} + + + +/* Check for completed transfers, and remove their easy handles */ +static void check_multi_info(GlobalInfo *g) +{ + char *eff_url; + CURLMsg *msg; + int msgs_left; + ConnInfo *conn; + CURL *easy; + CURLcode res; + + fprintf(MSG_OUT, "REMAINING: %d\n", g->still_running); + while((msg = curl_multi_info_read(g->multi, &msgs_left))) { + if(msg->msg == CURLMSG_DONE) { + easy = msg->easy_handle; + res = msg->data.result; + curl_easy_getinfo(easy, CURLINFO_PRIVATE, &conn); + curl_easy_getinfo(easy, CURLINFO_EFFECTIVE_URL, &eff_url); + fprintf(MSG_OUT, "DONE: %s => (%d) %s\n", eff_url, res, conn->error); + curl_multi_remove_handle(g->multi, easy); + free(conn->url); + curl_easy_cleanup(easy); + free(conn); + } + } +} + + + +/* Called by libevent when we get action on a multi socket */ +static void event_cb(int fd, short kind, void *userp) +{ + GlobalInfo *g = (GlobalInfo*) userp; + CURLMcode rc; + + int action = + (kind & EV_READ ? CURL_CSELECT_IN : 0) | + (kind & EV_WRITE ? CURL_CSELECT_OUT : 0); + + rc = curl_multi_socket_action(g->multi, fd, action, &g->still_running); + mcode_or_die("event_cb: curl_multi_socket_action", rc); + + check_multi_info(g); + if(g->still_running <= 0) { + fprintf(MSG_OUT, "last transfer done, kill timeout\n"); + if(evtimer_pending(g->timer_event, NULL)) { + evtimer_del(g->timer_event); + } + } +} + + + +/* Called by libevent when our timeout expires */ +static void timer_cb(int fd, short kind, void *userp) +{ + GlobalInfo *g = (GlobalInfo *)userp; + CURLMcode rc; + (void)fd; + (void)kind; + + rc = curl_multi_socket_action(g->multi, + CURL_SOCKET_TIMEOUT, 0, &g->still_running); + mcode_or_die("timer_cb: curl_multi_socket_action", rc); + check_multi_info(g); +} + + + +/* Clean up the SockInfo structure */ +static void remsock(SockInfo *f) +{ + if(f) { + if(f->evset) + event_free(f->ev); + free(f); + } +} + + + +/* Assign information to a SockInfo structure */ +static void setsock(SockInfo *f, curl_socket_t s, CURL *e, int act, + GlobalInfo *g) +{ + int kind = + (act&CURL_POLL_IN?EV_READ:0)|(act&CURL_POLL_OUT?EV_WRITE:0)|EV_PERSIST; + + f->sockfd = s; + f->action = act; + f->easy = e; + if(f->evset) + event_free(f->ev); + f->ev = event_new(g->evbase, f->sockfd, kind, event_cb, g); + f->evset = 1; + event_add(f->ev, NULL); +} + + + +/* Initialize a new SockInfo structure */ +static void addsock(curl_socket_t s, CURL *easy, int action, GlobalInfo *g) +{ + SockInfo *fdp = calloc(sizeof(SockInfo), 1); + + fdp->global = g; + setsock(fdp, s, easy, action, g); + curl_multi_assign(g->multi, s, fdp); +} + +/* CURLMOPT_SOCKETFUNCTION */ +static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp) +{ + GlobalInfo *g = (GlobalInfo*) cbp; + SockInfo *fdp = (SockInfo*) sockp; + const char *whatstr[]={ "none", "IN", "OUT", "INOUT", "REMOVE" }; + + fprintf(MSG_OUT, + "socket callback: s=%d e=%p what=%s ", s, e, whatstr[what]); + if(what == CURL_POLL_REMOVE) { + fprintf(MSG_OUT, "\n"); + remsock(fdp); + } + else { + if(!fdp) { + fprintf(MSG_OUT, "Adding data: %s\n", whatstr[what]); + addsock(s, e, what, g); + } + else { + fprintf(MSG_OUT, + "Changing action from %s to %s\n", + whatstr[fdp->action], whatstr[what]); + setsock(fdp, s, e, what, g); + } + } + return 0; +} + + + +/* CURLOPT_WRITEFUNCTION */ +static size_t write_cb(void *ptr, size_t size, size_t nmemb, void *data) +{ + size_t realsize = size * nmemb; + ConnInfo *conn = (ConnInfo*) data; + (void)ptr; + (void)conn; + return realsize; +} + + +/* CURLOPT_PROGRESSFUNCTION */ +static int prog_cb(void *p, double dltotal, double dlnow, double ult, + double uln) +{ + ConnInfo *conn = (ConnInfo *)p; + (void)ult; + (void)uln; + + fprintf(MSG_OUT, "Progress: %s (%g/%g)\n", conn->url, dlnow, dltotal); + return 0; +} + + +/* Create a new easy handle, and add it to the global curl_multi */ +static void new_conn(char *url, GlobalInfo *g) +{ + ConnInfo *conn; + CURLMcode rc; + + conn = calloc(1, sizeof(ConnInfo)); + memset(conn, 0, sizeof(ConnInfo)); + conn->error[0]='\0'; + + conn->easy = curl_easy_init(); + if(!conn->easy) { + fprintf(MSG_OUT, "curl_easy_init() failed, exiting!\n"); + exit(2); + } + conn->global = g; + conn->url = strdup(url); + curl_easy_setopt(conn->easy, CURLOPT_URL, conn->url); + curl_easy_setopt(conn->easy, CURLOPT_WRITEFUNCTION, write_cb); + curl_easy_setopt(conn->easy, CURLOPT_WRITEDATA, conn); + curl_easy_setopt(conn->easy, CURLOPT_VERBOSE, 1L); + curl_easy_setopt(conn->easy, CURLOPT_ERRORBUFFER, conn->error); + curl_easy_setopt(conn->easy, CURLOPT_PRIVATE, conn); + curl_easy_setopt(conn->easy, CURLOPT_NOPROGRESS, 0L); + curl_easy_setopt(conn->easy, CURLOPT_PROGRESSFUNCTION, prog_cb); + curl_easy_setopt(conn->easy, CURLOPT_PROGRESSDATA, conn); + fprintf(MSG_OUT, + "Adding easy %p to multi %p (%s)\n", conn->easy, g->multi, url); + rc = curl_multi_add_handle(g->multi, conn->easy); + mcode_or_die("new_conn: curl_multi_add_handle", rc); + + /* note that the add_handle() will set a time-out to trigger very soon so + that the necessary socket_action() call will be called by this app */ +} + +/* This gets called whenever data is received from the fifo */ +static void fifo_cb(int fd, short event, void *arg) +{ + char s[1024]; + long int rv=0; + int n=0; + GlobalInfo *g = (GlobalInfo *)arg; + (void)fd; /* unused */ + (void)event; /* unused */ + + do { + s[0]='\0'; + rv=fscanf(g->input, "%1023s%n", s, &n); + s[n]='\0'; + if(n && s[0]) { + new_conn(s, arg); /* if we read a URL, go get it! */ + } + else + break; + } while(rv != EOF); +} + +/* Create a named pipe and tell libevent to monitor it */ +static const char *fifo = "hiper.fifo"; +static int init_fifo(GlobalInfo *g) +{ + struct stat st; + curl_socket_t sockfd; + + fprintf(MSG_OUT, "Creating named pipe \"%s\"\n", fifo); + if(lstat (fifo, &st) == 0) { + if((st.st_mode & S_IFMT) == S_IFREG) { + errno = EEXIST; + perror("lstat"); + exit(1); + } + } + unlink(fifo); + if(mkfifo (fifo, 0600) == -1) { + perror("mkfifo"); + exit(1); + } + sockfd = open(fifo, O_RDWR | O_NONBLOCK, 0); + if(sockfd == -1) { + perror("open"); + exit(1); + } + g->input = fdopen(sockfd, "r"); + + fprintf(MSG_OUT, "Now, pipe some URL's into > %s\n", fifo); + g->fifo_event = event_new(g->evbase, sockfd, EV_READ|EV_PERSIST, fifo_cb, g); + event_add(g->fifo_event, NULL); + return (0); +} + +static void clean_fifo(GlobalInfo *g) +{ + event_free(g->fifo_event); + fclose(g->input); + unlink(fifo); +} + +int main(int argc, char **argv) +{ + GlobalInfo g; + (void)argc; + (void)argv; + + memset(&g, 0, sizeof(GlobalInfo)); + g.evbase = event_base_new(); + init_fifo(&g); + g.multi = curl_multi_init(); + g.timer_event = evtimer_new(g.evbase, timer_cb, &g); + + /* setup the generic multi interface options we want */ + curl_multi_setopt(g.multi, CURLMOPT_SOCKETFUNCTION, sock_cb); + curl_multi_setopt(g.multi, CURLMOPT_SOCKETDATA, &g); + curl_multi_setopt(g.multi, CURLMOPT_TIMERFUNCTION, multi_timer_cb); + curl_multi_setopt(g.multi, CURLMOPT_TIMERDATA, &g); + + /* we don't call any curl_multi_socket*() function yet as we have no handles + added! */ + + event_base_dispatch(g.evbase); + + /* this, of course, won't get called since only way to stop this program is + via ctrl-C, but it is here to show how cleanup /would/ be done. */ + clean_fifo(&g); + event_free(g.timer_event); + event_base_free(g.evbase); + curl_multi_cleanup(g.multi); + return 0; +} diff --git a/test-curl/test/src/test.c b/test-curl/test/src/test.c new file mode 100644 index 0000000..52b1473 --- /dev/null +++ b/test-curl/test/src/test.c @@ -0,0 +1,197 @@ +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <string.h> +#include <stdbool.h> + +#include <curl/curl.h> +#include <event2/event.h> +#include <event2/bufferevent.h> +#include <event2/buffer.h> + +#define URIS_S 2 +const char *uris[] = { + "https://api.turris.cz/updater-defs/3.5/omnia/dev-karel/base.lua", + "https://api.turris.cz/updater-defs/3.5/omnia/dev-karel/base.lua.sig" +}; + +CURLM *curl_multi; +struct event_base *e_base; +struct event *e_timer; + +struct dwn_data { + const char *err; +}; + +static void check() { + CURLMsg *msg; + int msgs_left; + struct dwn_data *data; + char *url; + + while ((msg = curl_multi_info_read(curl_multi, &msgs_left))) { + if (msg->msg != CURLMSG_DONE) + continue; // No other message types are defined in libcurl. We check just because of compatibility with possible future versions. + curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &data); + curl_easy_getinfo(msg->easy_handle, CURLINFO_EFFECTIVE_URL, &url); + if (msg->data.result == CURLE_OK) { + printf("Download succesfull (%s)\n", url); + } else { + printf("Download failed (%s): %s\n", url, data->err); + exit(2); + } + } +} + +static size_t clb_write(char *ptr, size_t size, size_t nmemb, void *userd) { + // Drop all data + return size * nmemb; +} + +static void clb_timer(int fd __attribute__((unused)), short kind __attribute__((unused)), void *userp) { + printf("Timer callback\n"); + int running = 0; + curl_multi_socket_action(curl_multi, CURL_SOCKET_TIMEOUT, 0, &running); + check(); +} + +static int clb_timer_set(CURLM *curl_multi __attribute__((unused)), long timeout_ms, void *userp) { + printf("Timer set %ld\n", timeout_ms); + struct timeval timeout; + timeout.tv_sec = timeout_ms / 1000; + timeout.tv_usec = (timeout_ms % 1000) * 1000; + evtimer_add(e_timer, &timeout); + return 0; +} + +struct dt_s { + size_t id; + struct event *e; +}; + +static void clb_socket(int fd, short kind, void *userp) { + printf("Socket callback\n"); + int action = ((kind & EV_READ) ? CURL_CSELECT_IN : 0) | ((kind & EV_WRITE) ? CURL_CSELECT_OUT : 0); + int running = 0; + curl_multi_socket_action(curl_multi, fd, action, &running); + check(); + if (running <= 0 && evtimer_pending(e_timer, NULL)) + evtimer_del(e_timer); +} + +size_t id_next = 0; + +static int clb_socket_set(CURL *curl_easy, curl_socket_t s, int what, void *userp, void *socketp) { + struct dt_s *sdata = socketp; + if (what == CURL_POLL_REMOVE) { + printf("Socket remove %ld\n", sdata->id); + event_free(sdata->e); + free(sdata); + } else { + if (!sdata) { // New socket. No data associated. + printf("Socket new %ld\n", id_next); + sdata = malloc(sizeof *sdata); + sdata->e = NULL; + sdata->id = id_next++; + curl_multi_assign(curl_multi, s, sdata); + } else + printf("Socket change %ld\n", sdata->id); + short kind = ((what & CURL_POLL_IN) ? EV_READ : 0) | ((what & CURL_POLL_OUT) ? EV_WRITE : 0) | EV_PERSIST; + if (sdata->e) { + event_del(sdata->e); + event_assign(sdata->e, e_base, s, kind, clb_socket, sdata); + } else + sdata->e = event_new(e_base, s, kind, clb_socket, sdata); + event_add(sdata->e, NULL); + } + return 0; +} + +static CURL *new_curl(const char *uri, bool simple) { + CURL *curl = curl_easy_init(); + curl_easy_setopt(curl, CURLOPT_VERBOSE, 1); + curl_easy_setopt(curl, CURLOPT_URL, uri); + curl_easy_setopt(curl, CURLOPT_ACCEPT_ENCODING, ""); + curl_easy_setopt(curl, CURLOPT_CAINFO, "./ca.pem"); + curl_easy_setopt(curl, CURLOPT_CRLFILE, "./crl.pem"); + curl_easy_setopt(curl, CURLOPT_FAILONERROR, 1); + curl_easy_setopt(curl, CURLOPT_TIMEOUT, 120); + curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 30); + curl_easy_setopt(curl, CURLOPT_CAPATH, NULL); + curl_easy_setopt(curl, CURLOPT_SSL_CIPHER_LIST, NULL); + + if (!simple) { + struct dwn_data *data = malloc(sizeof *data); + curl_multi_add_handle(curl_multi, curl); + curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, clb_write); + curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, data->err); + curl_easy_setopt(curl, CURLOPT_PRIVATE, data); + } + + return curl; +} + + +int main(int argc, char *argv[]) { + bool simple = (argc > 1 && !strcmp(argv[1], "-s")); + bool multi = (argc > 1 && !strcmp(argv[1], "-m")); + curl_global_init(CURL_GLOBAL_SSL); + if (!simple) { + struct event_config *config = event_config_new(); + event_config_require_features(config, EV_FEATURE_FDS); + event_config_set_flag(config, EVENT_BASE_FLAG_NOLOCK); + e_base = event_base_new_with_config(config); + event_config_free(config); + e_timer = evtimer_new(e_base, clb_timer, NULL); + + curl_multi = curl_multi_init(); + curl_multi_setopt(curl_multi, CURLMOPT_MAX_TOTAL_CONNECTIONS, 1); + curl_multi_setopt(curl_multi, CURLMOPT_SOCKETFUNCTION, clb_socket_set); + curl_multi_setopt(curl_multi, CURLMOPT_TIMERFUNCTION, clb_timer_set); + } + + size_t i; + CURL *curls[URIS_S]; + for (i = 0; i < URIS_S; i++) { + curls[i] = new_curl(uris[i], simple); + } + if (simple) { + for (i = 0; i < URIS_S; i++) { + CURLcode res = curl_easy_perform(curls[i]); + if (res == CURLE_OK) + printf("Download succesfull (%s)\n", uris[i]); + else + printf("Download failed (%s): %s\n", uris[i], curl_easy_strerror(res)); + } + } else if (multi) { + int sr = 0; + CURLMcode cd; + do { + cd = curl_multi_perform(curl_multi, &sr); + } while(sr > 0 || cd == CURLM_CALL_MULTI_PERFORM); + if (cd != CURLM_OK) { + printf("Download failed: %s\n", curl_multi_strerror(cd)); + exit(3); + } else + printf("Download succesfull\n"); + } else + event_base_dispatch(e_base); + + for (i = 0; i < URIS_S; i++) { + if (!simple) + curl_multi_remove_handle(curl_multi, curls[i]); + curl_easy_cleanup(curls[i]); + } + + if (!simple) { + curl_multi_cleanup(curl_multi); + + event_free(e_timer); + event_base_free(e_base); + } + curl_global_cleanup(); + + return 0; +} |