static void http_route_static(struct evhttp_request *r, const char *uri)
{
struct http_static_t *cmdp;
struct stat st;
char fname[HTTP_FNAME_LEN];
char last_modified[128];
char *contenttype;
int fd;
int file_size;
char *buf;
struct evkeyvalq *req_headers;
const char *ims;
for (cmdp = http_static_files; cmdp->name != NULL; cmdp++)
if (strcmp(cmdp->name, uri) == 0)
break;
if (cmdp->name == NULL) {
hlog(LOG_DEBUG, "HTTP: 404");
evhttp_send_error(r, HTTP_NOTFOUND, "Not found");
return;
}
snprintf(fname, HTTP_FNAME_LEN, "%s/%s", webdir, cmdp->filename);
//hlog(LOG_DEBUG, "static file request %s", uri);
fd = open(fname, 0, O_RDONLY);
if (fd < 0) {
if (errno == ENOENT) {
/* don't complain about missing motd.html - it's optional. */
int level = LOG_ERR;
if (strcmp(cmdp->filename, "motd.html") == 0)
level = LOG_DEBUG;
hlog(level, "http static file '%s' not found", fname);
evhttp_send_error(r, HTTP_NOTFOUND, "Not found");
return;
}
hlog(LOG_ERR, "http static file '%s' could not be opened for reading: %s", fname, strerror(errno));
evhttp_send_error(r, HTTP_INTERNAL, "Could not access file");
return;
}
if (fstat(fd, &st) == -1) {
hlog(LOG_ERR, "http static file '%s' could not fstat() after opening: %s", fname, strerror(errno));
evhttp_send_error(r, HTTP_INTERNAL, "Could not access file");
if (close(fd) < 0)
hlog(LOG_ERR, "http static file '%s' could not be closed after failed stat: %s", fname, strerror(errno));
return;
}
http_date(last_modified, sizeof(last_modified), st.st_mtime);
contenttype = http_content_type(cmdp->filename);
//hlog(LOG_DEBUG, "found content-type %s", contenttype);
struct evkeyvalq *headers = evhttp_request_get_output_headers(r);
http_header_base(headers, st.st_mtime);
evhttp_add_header(headers, "Content-Type", contenttype);
/* Consider an IMS hit */
req_headers = evhttp_request_get_input_headers(r);
ims = evhttp_find_header(req_headers, "If-Modified-Since");
if ((ims) && strcasecmp(ims, last_modified) == 0) {
hlog(LOG_DEBUG, "http static file '%s' IMS hit", fname);
evhttp_send_reply(r, HTTP_NOTMODIFIED, "Not modified", NULL);
if (close(fd) < 0)
hlog(LOG_ERR, "http static file '%s' could not be closed after failed stat: %s", fname, strerror(errno));
return;
}
file_size = st.st_size;
/* yes, we are not going to serve large files. */
buf = hmalloc(file_size);
int n = read(fd, buf, file_size);
if (close(fd) < 0) {
hlog(LOG_ERR, "http static file '%s' could not be closed after reading: %s", fname, strerror(errno));
evhttp_send_error(r, HTTP_INTERNAL, "Could not access file");
hfree(buf);
return;
}
if (n != file_size) {
hlog(LOG_ERR, "http static file '%s' could only read %d of %d bytes", fname, n, file_size);
evhttp_send_error(r, HTTP_INTERNAL, "Could not access file");
hfree(buf);
return;
}
int allow_compress;
if (strncmp(contenttype, "image/", 6) == 0)
allow_compress = 0;
else
allow_compress = 1;
http_send_reply_ok(r, headers, buf, n, allow_compress);
hfree(buf);
}
void rss_http_header()
{
http_content_type("application/rss+xml");
}
