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#include <sys/queue.h>
#include <sys/socket.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <imsg.h>
#include "extern.h"
static struct msgbuf httpq;
void
logx(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vwarnx(fmt, ap);
va_end(ap);
}
time_t
getmonotime(void)
{
struct timespec ts;
if (clock_gettime(CLOCK_MONOTONIC, &ts) != 0)
err(1, "clock_gettime");
return (ts.tv_sec);
}
int
valid_origin(const char *uri, const char *proto)
{
const char *to;
/* extract end of host from proto URI */
to = strstr(proto, "://");
if (to == NULL)
return 0;
to += strlen("://");
if ((to = strchr(to, '/')) == NULL)
return 0;
/* compare hosts including the / for the start of the path section */
if (strncasecmp(uri, proto, to - proto + 1) != 0)
return 0;
return 1;
}
static void
http_request(unsigned int id, const char *uri, const char *last_mod, int fd)
{
struct ibuf *b;
b = io_new_buffer();
io_simple_buffer(b, &id, sizeof(id));
io_str_buffer(b, uri);
io_str_buffer(b, last_mod);
/* pass file as fd */
b->fd = fd;
io_close_buffer(&httpq, b);
}
static const char *
http_result(enum http_result res)
{
switch (res) {
case HTTP_OK:
return "OK";
case HTTP_NOT_MOD:
return "not modified";
case HTTP_FAILED:
return "failed";
default:
errx(1, "unknown http result: %d", res);
}
}
static int
http_response(int fd)
{
struct ibuf *b, *httpbuf = NULL;
unsigned int id;
enum http_result res;
char *lastmod;
while ((b = io_buf_read(fd, &httpbuf)) == NULL)
/* nothing */ ;
io_read_buf(b, &id, sizeof(id));
io_read_buf(b, &res, sizeof(res));
io_read_str(b, &lastmod);
ibuf_free(b);
printf("transfer %s", http_result(res));
if (lastmod)
printf(", last-modified: %s" , lastmod);
printf("\n");
return res == HTTP_FAILED;
}
int
main(int argc, char **argv)
{
pid_t httppid;
int error, fd[2], outfd, http;
int fl = SOCK_STREAM | SOCK_CLOEXEC;
char *uri, *file, *mod;
unsigned int req = 0;
if (argc != 3 && argc != 4) {
fprintf(stderr, "usage: test-http uri file [last-modified]\n");
return 1;
}
uri = argv[1];
file = argv[2];
mod = argv[3];
if (socketpair(AF_UNIX, fl, 0, fd) == -1)
err(1, "socketpair");
if ((httppid = fork()) == -1)
err(1, "fork");
if (httppid == 0) {
close(fd[1]);
if (pledge("stdio rpath inet dns recvfd", NULL) == -1)
err(1, "pledge");
proc_http(NULL, fd[0]);
errx(1, "http process returned");
}
close(fd[0]);
http = fd[1];
msgbuf_init(&httpq);
httpq.fd = http;
if ((outfd = open(file, O_WRONLY|O_CREAT|O_TRUNC, 0666)) == -1)
err(1, "open %s", file);
http_request(req++, uri, mod, outfd);
switch (msgbuf_write(&httpq)) {
case 0:
errx(1, "write: connection closed");
case -1:
err(1, "write");
}
error = http_response(http);
return error;
}
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