beego: fix the router for *.* with other regexp

tree.go

@@ -237,12 +237,18 @@ func (t *Tree) addseg(segments []string, route interface{}, wildcards []string,
 					regexpStr = "/" + regexpStr
 				}
 			} else if reg != "" {
-				for _, w := range params {
-					if w == "." || w == ":" {
-						continue
+				if seg == "*.*" {
+					regexpStr = "/([^.]+).(.+)"
+				} else {
+					for _, w := range params {
+
+						if w == "." || w == ":" {
+							continue
+						}
+						regexpStr = "/([^/]+)" + regexpStr
 					}
-					regexpStr = "/([^/]+)" + regexpStr
 				}
+
 			}
 			t.wildcard.addseg(segments[1:], route, append(wildcards, params...), reg+regexpStr)
 		} else {
@@ -396,6 +402,7 @@ func (leaf *leafInfo) match(wildcardValues []string) (ok bool, params map[string
 		}
 		return true, params
 	}
+
 	if !leaf.regexps.MatchString(path.Join(wildcardValues...)) {
 		return false, nil
 	}

tree_test.go

@@ -42,6 +42,9 @@ func init() {
 	routers = append(routers, testinfo{"/*.*", "/nice/api.json", map[string]string{":path": "nice/api", ":ext": "json"}})
 	routers = append(routers, testinfo{"/:name/*.*", "/nice/api.json", map[string]string{":name": "nice", ":path": "api", ":ext": "json"}})
 	routers = append(routers, testinfo{"/:name/test/*.*", "/nice/test/api.json", map[string]string{":name": "nice", ":path": "api", ":ext": "json"}})
+	routers = append(routers, testinfo{"/dl/:width:int/:height:int/*.*",
+		"/dl/48/48/05ac66d9bda00a3acf948c43e306fc9a.jpg",
+		map[string]string{":width": "48", ":height": "48", ":ext": "jpg", ":path": "05ac66d9bda00a3acf948c43e306fc9a"}})
 	routers = append(routers, testinfo{"/v1/shop/:id:int", "/v1/shop/123", map[string]string{":id": "123"}})
 	routers = append(routers, testinfo{"/:year:int/:month:int/:id/:endid", "/1111/111/aaa/aaa", map[string]string{":year": "1111", ":month": "111", ":id": "aaa", ":endid": "aaa"}})
 	routers = append(routers, testinfo{"/v1/shop/:id/:name", "/v1/shop/123/nike", map[string]string{":id": "123", ":name": "nike"}})