Migrating from govendor to go dep
Change-Id: I08f2863450e141f1fed0bdef4b9ba64157c7289d
diff --git a/vendor/github.com/gorilla/mux/mux.go b/vendor/github.com/gorilla/mux/mux.go
index d66ec38..4bbafa5 100644
--- a/vendor/github.com/gorilla/mux/mux.go
+++ b/vendor/github.com/gorilla/mux/mux.go
@@ -10,7 +10,14 @@
"net/http"
"path"
"regexp"
- "strings"
+)
+
+var (
+ // ErrMethodMismatch is returned when the method in the request does not match
+ // the method defined against the route.
+ ErrMethodMismatch = errors.New("method is not allowed")
+ // ErrNotFound is returned when no route match is found.
+ ErrNotFound = errors.New("no matching route was found")
)
// NewRouter returns a new router instance.
@@ -39,6 +46,10 @@
type Router struct {
// Configurable Handler to be used when no route matches.
NotFoundHandler http.Handler
+
+ // Configurable Handler to be used when the request method does not match the route.
+ MethodNotAllowedHandler http.Handler
+
// Parent route, if this is a subrouter.
parent parentRoute
// Routes to be matched, in order.
@@ -55,21 +66,51 @@
KeepContext bool
// see Router.UseEncodedPath(). This defines a flag for all routes.
useEncodedPath bool
+ // Slice of middlewares to be called after a match is found
+ middlewares []middleware
}
-// Match matches registered routes against the request.
+// Match attempts to match the given request against the router's registered routes.
+//
+// If the request matches a route of this router or one of its subrouters the Route,
+// Handler, and Vars fields of the the match argument are filled and this function
+// returns true.
+//
+// If the request does not match any of this router's or its subrouters' routes
+// then this function returns false. If available, a reason for the match failure
+// will be filled in the match argument's MatchErr field. If the match failure type
+// (eg: not found) has a registered handler, the handler is assigned to the Handler
+// field of the match argument.
func (r *Router) Match(req *http.Request, match *RouteMatch) bool {
for _, route := range r.routes {
if route.Match(req, match) {
+ // Build middleware chain if no error was found
+ if match.MatchErr == nil {
+ for i := len(r.middlewares) - 1; i >= 0; i-- {
+ match.Handler = r.middlewares[i].Middleware(match.Handler)
+ }
+ }
return true
}
}
+ if match.MatchErr == ErrMethodMismatch {
+ if r.MethodNotAllowedHandler != nil {
+ match.Handler = r.MethodNotAllowedHandler
+ return true
+ }
+
+ return false
+ }
+
// Closest match for a router (includes sub-routers)
if r.NotFoundHandler != nil {
match.Handler = r.NotFoundHandler
+ match.MatchErr = ErrNotFound
return true
}
+
+ match.MatchErr = ErrNotFound
return false
}
@@ -81,7 +122,7 @@
if !r.skipClean {
path := req.URL.Path
if r.useEncodedPath {
- path = getPath(req)
+ path = req.URL.EscapedPath()
}
// Clean path to canonical form and redirect.
if p := cleanPath(path); p != path {
@@ -105,12 +146,19 @@
req = setVars(req, match.Vars)
req = setCurrentRoute(req, match.Route)
}
+
+ if handler == nil && match.MatchErr == ErrMethodMismatch {
+ handler = methodNotAllowedHandler()
+ }
+
if handler == nil {
handler = http.NotFoundHandler()
}
+
if !r.KeepContext {
defer contextClear(req)
}
+
handler.ServeHTTP(w, req)
}
@@ -128,13 +176,18 @@
// StrictSlash defines the trailing slash behavior for new routes. The initial
// value is false.
//
-// When true, if the route path is "/path/", accessing "/path" will redirect
+// When true, if the route path is "/path/", accessing "/path" will perform a redirect
// to the former and vice versa. In other words, your application will always
// see the path as specified in the route.
//
// When false, if the route path is "/path", accessing "/path/" will not match
// this route and vice versa.
//
+// The re-direct is a HTTP 301 (Moved Permanently). Note that when this is set for
+// routes with a non-idempotent method (e.g. POST, PUT), the subsequent re-directed
+// request will be made as a GET by most clients. Use middleware or client settings
+// to modify this behaviour as needed.
+//
// Special case: when a route sets a path prefix using the PathPrefix() method,
// strict slash is ignored for that route because the redirect behavior can't
// be determined from a prefix alone. However, any subrouters created from that
@@ -160,10 +213,6 @@
// UseEncodedPath tells the router to match the encoded original path
// to the routes.
// For eg. "/path/foo%2Fbar/to" will match the path "/path/{var}/to".
-// This behavior has the drawback of needing to match routes against
-// r.RequestURI instead of r.URL.Path. Any modifications (such as http.StripPrefix)
-// to r.URL.Path will not affect routing when this flag is on and thus may
-// induce unintended behavior.
//
// If not called, the router will match the unencoded path to the routes.
// For eg. "/path/foo%2Fbar/to" will match the path "/path/foo/bar/to"
@@ -176,6 +225,13 @@
// parentRoute
// ----------------------------------------------------------------------------
+func (r *Router) getBuildScheme() string {
+ if r.parent != nil {
+ return r.parent.getBuildScheme()
+ }
+ return ""
+}
+
// getNamedRoutes returns the map where named routes are registered.
func (r *Router) getNamedRoutes() map[string]*Route {
if r.namedRoutes == nil {
@@ -299,10 +355,6 @@
func (r *Router) walk(walkFn WalkFunc, ancestors []*Route) error {
for _, t := range r.routes {
- if t.regexp == nil || t.regexp.path == nil || t.regexp.path.template == "" {
- continue
- }
-
err := walkFn(t, r, ancestors)
if err == SkipRouter {
continue
@@ -312,10 +364,12 @@
}
for _, sr := range t.matchers {
if h, ok := sr.(*Router); ok {
+ ancestors = append(ancestors, t)
err := h.walk(walkFn, ancestors)
if err != nil {
return err
}
+ ancestors = ancestors[:len(ancestors)-1]
}
}
if h, ok := t.handler.(*Router); ok {
@@ -339,6 +393,11 @@
Route *Route
Handler http.Handler
Vars map[string]string
+
+ // MatchErr is set to appropriate matching error
+ // It is set to ErrMethodMismatch if there is a mismatch in
+ // the request method and route method
+ MatchErr error
}
type contextKey int
@@ -380,28 +439,6 @@
// Helpers
// ----------------------------------------------------------------------------
-// getPath returns the escaped path if possible; doing what URL.EscapedPath()
-// which was added in go1.5 does
-func getPath(req *http.Request) string {
- if req.RequestURI != "" {
- // Extract the path from RequestURI (which is escaped unlike URL.Path)
- // as detailed here as detailed in https://golang.org/pkg/net/url/#URL
- // for < 1.5 server side workaround
- // http://localhost/path/here?v=1 -> /path/here
- path := req.RequestURI
- path = strings.TrimPrefix(path, req.URL.Scheme+`://`)
- path = strings.TrimPrefix(path, req.URL.Host)
- if i := strings.LastIndex(path, "?"); i > -1 {
- path = path[:i]
- }
- if i := strings.LastIndex(path, "#"); i > -1 {
- path = path[:i]
- }
- return path
- }
- return req.URL.Path
-}
-
// cleanPath returns the canonical path for p, eliminating . and .. elements.
// Borrowed from the net/http package.
func cleanPath(p string) string {
@@ -458,7 +495,7 @@
return m, nil
}
-// mapFromPairsToRegex converts variadic string paramers to a
+// mapFromPairsToRegex converts variadic string parameters to a
// string to regex map.
func mapFromPairsToRegex(pairs ...string) (map[string]*regexp.Regexp, error) {
length, err := checkPairs(pairs...)
@@ -540,3 +577,12 @@
}
return true
}
+
+// methodNotAllowed replies to the request with an HTTP status code 405.
+func methodNotAllowed(w http.ResponseWriter, r *http.Request) {
+ w.WriteHeader(http.StatusMethodNotAllowed)
+}
+
+// methodNotAllowedHandler returns a simple request handler
+// that replies to each request with a status code 405.
+func methodNotAllowedHandler() http.Handler { return http.HandlerFunc(methodNotAllowed) }