uhttpd: - abort file serving if client connection is lost (#7742) - don't send bad request headers twice
SVN-Revision: 22602
This commit is contained in:
Jo-Philipp Wich
parent
b36a1274bb
commit
2d175dcdce
3 changed files with 50 additions and 44 deletions
|
|
@ -8,7 +8,7 @@
|
|||
include $(TOPDIR)/rules.mk
|
||||
|
||||
PKG_NAME:=uhttpd
|
||||
PKG_RELEASE:=13
|
||||
PKG_RELEASE:=14
|
||||
|
||||
PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
|
||||
PKG_BUILD_DEPENDS := libcyassl liblua
|
||||
|
|
|
|||
|
|
@ -97,36 +97,39 @@ static char * uh_file_header_lookup(struct http_request *req, const char *name)
|
|||
return NULL;
|
||||
}
|
||||
|
||||
#define ensure_ret(x) \
|
||||
do { if( x < 0 ) return; } while(0)
|
||||
|
||||
static void uh_file_response_ok_hdrs(struct client *cl, struct http_request *req, struct stat *s)
|
||||
{
|
||||
uh_http_sendf(cl, NULL, "Connection: close\r\n");
|
||||
ensure_ret(uh_http_sendf(cl, NULL, "Connection: close\r\n"));
|
||||
|
||||
if( s )
|
||||
{
|
||||
uh_http_sendf(cl, NULL, "ETag: %s\r\n", uh_file_mktag(s));
|
||||
uh_http_sendf(cl, NULL, "Last-Modified: %s\r\n", uh_file_unix2date(s->st_mtime));
|
||||
ensure_ret(uh_http_sendf(cl, NULL, "ETag: %s\r\n", uh_file_mktag(s)));
|
||||
ensure_ret(uh_http_sendf(cl, NULL, "Last-Modified: %s\r\n", uh_file_unix2date(s->st_mtime)));
|
||||
}
|
||||
|
||||
uh_http_sendf(cl, NULL, "Date: %s\r\n", uh_file_unix2date(time(NULL)));
|
||||
ensure_ret(uh_http_sendf(cl, NULL, "Date: %s\r\n", uh_file_unix2date(time(NULL))));
|
||||
}
|
||||
|
||||
static void uh_file_response_200(struct client *cl, struct http_request *req, struct stat *s)
|
||||
{
|
||||
uh_http_sendf(cl, NULL, "HTTP/%.1f 200 OK\r\n", req->version);
|
||||
ensure_ret(uh_http_sendf(cl, NULL, "HTTP/%.1f 200 OK\r\n", req->version));
|
||||
uh_file_response_ok_hdrs(cl, req, s);
|
||||
}
|
||||
|
||||
static void uh_file_response_304(struct client *cl, struct http_request *req, struct stat *s)
|
||||
{
|
||||
uh_http_sendf(cl, NULL, "HTTP/%.1f 304 Not Modified\r\n", req->version);
|
||||
ensure_ret(uh_http_sendf(cl, NULL, "HTTP/%.1f 304 Not Modified\r\n", req->version));
|
||||
uh_file_response_ok_hdrs(cl, req, s);
|
||||
}
|
||||
|
||||
static void uh_file_response_412(struct client *cl, struct http_request *req)
|
||||
{
|
||||
uh_http_sendf(cl, NULL,
|
||||
ensure_ret(uh_http_sendf(cl, NULL,
|
||||
"HTTP/%.1f 412 Precondition Failed\r\n"
|
||||
"Connection: close\r\n", req->version);
|
||||
"Connection: close\r\n", req->version));
|
||||
}
|
||||
|
||||
static int uh_file_if_match(struct client *cl, struct http_request *req, struct stat *s)
|
||||
|
|
@ -244,6 +247,9 @@ static int uh_file_if_unmodified_since(struct client *cl, struct http_request *r
|
|||
}
|
||||
|
||||
|
||||
#define ensure_out(x) \
|
||||
do { if( x < 0 ) goto out; } while(0)
|
||||
|
||||
static int uh_file_scandir_filter_dir(const struct dirent *e)
|
||||
{
|
||||
return strcmp(e->d_name, ".") ? 1 : 0;
|
||||
|
|
@ -251,17 +257,18 @@ static int uh_file_scandir_filter_dir(const struct dirent *e)
|
|||
|
||||
static void uh_file_dirlist(struct client *cl, struct http_request *req, struct path_info *pi)
|
||||
{
|
||||
int i, count;
|
||||
int i;
|
||||
int count = 0;
|
||||
char filename[PATH_MAX];
|
||||
char *pathptr;
|
||||
struct dirent **files = NULL;
|
||||
struct stat s;
|
||||
|
||||
uh_http_sendf(cl, req,
|
||||
ensure_out(uh_http_sendf(cl, req,
|
||||
"<html><head><title>Index of %s</title></head>"
|
||||
"<body><h1>Index of %s</h1><hr /><ol>",
|
||||
pi->name, pi->name
|
||||
);
|
||||
));
|
||||
|
||||
if( (count = scandir(pi->phys, &files, uh_file_scandir_filter_dir, alphasort)) > 0 )
|
||||
{
|
||||
|
|
@ -278,13 +285,13 @@ static void uh_file_dirlist(struct client *cl, struct http_request *req, struct
|
|||
if( !stat(filename, &s) &&
|
||||
(s.st_mode & S_IFDIR) && (s.st_mode & S_IXOTH)
|
||||
)
|
||||
uh_http_sendf(cl, req,
|
||||
ensure_out(uh_http_sendf(cl, req,
|
||||
"<li><strong><a href='%s%s'>%s</a>/</strong><br />"
|
||||
"<small>modified: %s<br />directory - %.02f kbyte"
|
||||
"<br /><br /></small></li>",
|
||||
pi->name, files[i]->d_name, files[i]->d_name,
|
||||
uh_file_unix2date(s.st_mtime), s.st_size / 1024.0
|
||||
);
|
||||
));
|
||||
|
||||
*pathptr = 0;
|
||||
}
|
||||
|
|
@ -298,30 +305,37 @@ static void uh_file_dirlist(struct client *cl, struct http_request *req, struct
|
|||
if( !stat(filename, &s) &&
|
||||
!(s.st_mode & S_IFDIR) && (s.st_mode & S_IROTH)
|
||||
)
|
||||
uh_http_sendf(cl, req,
|
||||
ensure_out(uh_http_sendf(cl, req,
|
||||
"<li><strong><a href='%s%s'>%s</a></strong><br />"
|
||||
"<small>modified: %s<br />%s - %.02f kbyte<br />"
|
||||
"<br /></small></li>",
|
||||
pi->name, files[i]->d_name, files[i]->d_name,
|
||||
uh_file_unix2date(s.st_mtime),
|
||||
uh_file_mime_lookup(filename), s.st_size / 1024.0
|
||||
);
|
||||
));
|
||||
|
||||
*pathptr = 0;
|
||||
}
|
||||
}
|
||||
|
||||
ensure_out(uh_http_sendf(cl, req, "</ol><hr /></body></html>"));
|
||||
ensure_out(uh_http_sendf(cl, req, ""));
|
||||
|
||||
out:
|
||||
if( files )
|
||||
{
|
||||
for( i = 0; i < count; i++ )
|
||||
free(files[i]);
|
||||
}
|
||||
}
|
||||
|
||||
free(files);
|
||||
|
||||
uh_http_sendf(cl, req, "</ol><hr /></body></html>");
|
||||
uh_http_sendf(cl, req, "");
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void uh_file_request(struct client *cl, struct http_request *req, struct path_info *pi)
|
||||
{
|
||||
int fd, rlen;
|
||||
int rlen;
|
||||
int fd = -1;
|
||||
char buf[UH_LIMIT_MSGHEAD];
|
||||
|
||||
/* we have a file */
|
||||
|
|
@ -338,38 +352,33 @@ void uh_file_request(struct client *cl, struct http_request *req, struct path_in
|
|||
/* write status */
|
||||
uh_file_response_200(cl, req, &pi->stat);
|
||||
|
||||
uh_http_sendf(cl, NULL, "Content-Type: %s\r\n", uh_file_mime_lookup(pi->name));
|
||||
uh_http_sendf(cl, NULL, "Content-Length: %i\r\n", pi->stat.st_size);
|
||||
ensure_out(uh_http_sendf(cl, NULL, "Content-Type: %s\r\n", uh_file_mime_lookup(pi->name)));
|
||||
ensure_out(uh_http_sendf(cl, NULL, "Content-Length: %i\r\n", pi->stat.st_size));
|
||||
|
||||
/* if request was HTTP 1.1 we'll respond chunked */
|
||||
if( (req->version > 1.0) && (req->method != UH_HTTP_MSG_HEAD) )
|
||||
uh_http_send(cl, NULL, "Transfer-Encoding: chunked\r\n", -1);
|
||||
ensure_out(uh_http_send(cl, NULL, "Transfer-Encoding: chunked\r\n", -1));
|
||||
|
||||
/* close header */
|
||||
uh_http_send(cl, NULL, "\r\n", -1);
|
||||
ensure_out(uh_http_send(cl, NULL, "\r\n", -1));
|
||||
|
||||
/* send body */
|
||||
if( req->method != UH_HTTP_MSG_HEAD )
|
||||
{
|
||||
/* pump file data */
|
||||
while( (rlen = read(fd, buf, sizeof(buf))) > 0 )
|
||||
{
|
||||
if( uh_http_send(cl, req, buf, rlen) < 0 )
|
||||
break;
|
||||
}
|
||||
ensure_out(uh_http_send(cl, req, buf, rlen));
|
||||
|
||||
/* send trailer in chunked mode */
|
||||
uh_http_send(cl, req, "", 0);
|
||||
ensure_out(uh_http_send(cl, req, "", 0));
|
||||
}
|
||||
}
|
||||
|
||||
/* one of the preconditions failed, terminate opened header and exit */
|
||||
else
|
||||
{
|
||||
uh_http_send(cl, NULL, "\r\n", -1);
|
||||
ensure_out(uh_http_send(cl, NULL, "\r\n", -1));
|
||||
}
|
||||
|
||||
close(fd);
|
||||
}
|
||||
|
||||
/* directory */
|
||||
|
|
@ -379,9 +388,9 @@ void uh_file_request(struct client *cl, struct http_request *req, struct path_in
|
|||
uh_file_response_200(cl, req, NULL);
|
||||
|
||||
if( req->version > 1.0 )
|
||||
uh_http_send(cl, NULL, "Transfer-Encoding: chunked\r\n", -1);
|
||||
ensure_out(uh_http_send(cl, NULL, "Transfer-Encoding: chunked\r\n", -1));
|
||||
|
||||
uh_http_send(cl, NULL, "Content-Type: text/html\r\n\r\n", -1);
|
||||
ensure_out(uh_http_send(cl, NULL, "Content-Type: text/html\r\n\r\n", -1));
|
||||
|
||||
/* content */
|
||||
uh_file_dirlist(cl, req, pi);
|
||||
|
|
@ -390,8 +399,12 @@ void uh_file_request(struct client *cl, struct http_request *req, struct path_in
|
|||
/* 403 */
|
||||
else
|
||||
{
|
||||
uh_http_sendhf(cl, 403, "Forbidden",
|
||||
"Access to this resource is forbidden");
|
||||
}
|
||||
ensure_out(uh_http_sendhf(cl, 403, "Forbidden",
|
||||
"Access to this resource is forbidden"));
|
||||
}
|
||||
|
||||
out:
|
||||
if( fd > -1 )
|
||||
close(fd);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -1001,13 +1001,6 @@ int main (int argc, char **argv)
|
|||
}
|
||||
}
|
||||
|
||||
/* 400 */
|
||||
else
|
||||
{
|
||||
uh_http_sendhf(cl, 400, "Bad Request",
|
||||
"Malformed request received");
|
||||
}
|
||||
|
||||
#ifdef HAVE_TLS
|
||||
/* free client tls context */
|
||||
if( conf.tls )
|
||||
|
|
|
|||
Loading…
Reference in a new issue