X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/232ec2e0d27cf2d28abffa7b4e71198a6b40f75e..23bd1bd8c77ebd8ee5650b4b3bd45fae2adfc85d:/package/uhttpd/src/uhttpd-utils.c

diff --git a/package/uhttpd/src/uhttpd-utils.c b/package/uhttpd/src/uhttpd-utils.c
index 9f9a5dd6a..a47f175ba 100644
--- a/package/uhttpd/src/uhttpd-utils.c
+++ b/package/uhttpd/src/uhttpd-utils.c
@@ -124,7 +124,7 @@ int select_intr(int n, fd_set *r, fd_set *w, fd_set *e, struct timeval *t)
 }
 
 
-int uh_tcp_send(struct client *cl, const char *buf, int len)
+int uh_tcp_send_lowlevel(struct client *cl, const char *buf, int len)
 {
 	fd_set writer;
 	struct timeval timeout;
@@ -135,21 +135,28 @@ int uh_tcp_send(struct client *cl, const char *buf, int len)
 	timeout.tv_sec = cl->server->conf->network_timeout;
 	timeout.tv_usec = 0;
 
-	if( select(cl->socket + 1, NULL, &writer, NULL, &timeout) > 0 )
-	{
-#ifdef HAVE_TLS
-		if( cl->tls )
-			return cl->server->conf->tls_send(cl, (void *)buf, len);
-		else
-#endif
-			return send(cl->socket, buf, len, 0);
-	}
+	if (select(cl->socket + 1, NULL, &writer, NULL, &timeout) > 0)
+		return send(cl->socket, buf, len, 0);
 
 	return -1;
 }
 
+int uh_tcp_send(struct client *cl, const char *buf, int len)
+{
+#ifdef HAVE_TLS
+	if (cl->tls)
+		return cl->server->conf->tls_send(cl, (void *)buf, len);
+	else
+#endif
+		return uh_tcp_send_lowlevel(cl, buf, len);
+}
+
 int uh_tcp_peek(struct client *cl, char *buf, int len)
 {
+	/* sanity check, prevent overflowing peek buffer */
+	if (len > sizeof(cl->peekbuf))
+		return -1;
+
 	int sz = uh_tcp_recv(cl, buf, len);
 
 	/* store received data in peek buffer */
@@ -162,33 +169,51 @@ int uh_tcp_peek(struct client *cl, char *buf, int len)
 	return sz;
 }
 
+int uh_tcp_recv_lowlevel(struct client *cl, char *buf, int len)
+{
+	fd_set reader;
+	struct timeval timeout;
+
+	FD_ZERO(&reader);
+	FD_SET(cl->socket, &reader);
+
+	timeout.tv_sec  = cl->server->conf->network_timeout;
+	timeout.tv_usec = 0;
+
+	if (select(cl->socket + 1, &reader, NULL, NULL, &timeout) > 0)
+		return recv(cl->socket, buf, len, 0);
+
+	return -1;
+}
+
 int uh_tcp_recv(struct client *cl, char *buf, int len)
 {
 	int sz = 0;
 	int rsz = 0;
 
 	/* first serve data from peek buffer */
-	if( cl->peeklen > 0 )
+	if (cl->peeklen > 0)
 	{
 		sz = min(cl->peeklen, len);
 		len -= sz; cl->peeklen -= sz;
-
 		memcpy(buf, cl->peekbuf, sz);
 		memmove(cl->peekbuf, &cl->peekbuf[sz], cl->peeklen);
 	}
 
 	/* caller wants more */
-	if( len > 0 )
+	if (len > 0)
 	{
 #ifdef HAVE_TLS
-		if( cl->tls )
+		if (cl->tls)
 			rsz = cl->server->conf->tls_recv(cl, (void *)&buf[sz], len);
 		else
 #endif
-			rsz = recv(cl->socket, (void *)&buf[sz], len, 0);
+			rsz = uh_tcp_recv_lowlevel(cl, (void *)&buf[sz], len);
+
+		if (rsz < 0)
+			return rsz;
 
-		if( (sz == 0) || (rsz > 0) )
-			sz += rsz;
+		sz += rsz;
 	}
 
 	return sz;
@@ -233,7 +258,7 @@ int uh_http_sendc(struct client *cl, const char *data, int len)
 
 	if( len > 0 )
 	{
-	 	clen = snprintf(chunk, sizeof(chunk), "%X\r\n", len);
+		clen = snprintf(chunk, sizeof(chunk), "%X\r\n", len);
 		ensure_ret(uh_tcp_send(cl, chunk, clen));
 		ensure_ret(uh_tcp_send(cl, data, len));
 		ensure_ret(uh_tcp_send(cl, "\r\n", 2));
@@ -474,6 +499,7 @@ struct path_info * uh_path_lookup(struct client *cl, const char *url)
 	char *docroot = cl->server->conf->docroot;
 	char *pathptr = NULL;
 
+	int slash = 0;
 	int no_sym = cl->server->conf->no_symlinks;
 	int i = 0;
 	struct stat s;
@@ -516,7 +542,7 @@ struct path_info * uh_path_lookup(struct client *cl, const char *url)
 	}
 
 	/* create canon path */
-	for( i = strlen(buffer); i >= 0; i-- )
+	for( i = strlen(buffer), slash = (buffer[max(0, i-1)] == '/'); i >= 0; i-- )
 	{
 		if( (buffer[i] == 0) || (buffer[i] == '/') )
 		{
@@ -567,7 +593,23 @@ struct path_info * uh_path_lookup(struct client *cl, const char *url)
 			memcpy(buffer, path_phys, sizeof(buffer));
 			pathptr = &buffer[strlen(buffer)];
 
-			if( cl->server->conf->index_file )
+			/* if requested url resolves to a directory and a trailing slash
+			   is missing in the request url, redirect the client to the same
+			   url with trailing slash appended */
+			if( !slash )
+			{
+				uh_http_sendf(cl, NULL,
+					"HTTP/1.1 302 Found\r\n"
+					"Location: %s%s%s\r\n"
+					"Connection: close\r\n\r\n",
+						&path_phys[strlen(docroot)],
+						p.query ? "?" : "",
+						p.query ? p.query : ""
+				);
+
+				p.redirected = 1;
+			}
+			else if( cl->server->conf->index_file )
 			{
 				strncat(buffer, cl->server->conf->index_file, sizeof(buffer));
 
@@ -740,12 +782,9 @@ int uh_auth_check(
 			/* found a realm matching the username */
 			if( realm )
 			{
-				/* is a crypt passwd */
-				if( realm->pass[0] == '$' )
-					pass = crypt(pass, realm->pass);
-
 				/* check user pass */
-				if( !strcmp(pass, realm->pass) )
+				if (!strcmp(pass, realm->pass) ||
+				    !strcmp(crypt(pass, realm->pass), realm->pass))
 					return 1;
 			}
 		}