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fix(gin): Do not panic when handling method not allowed on empty tree (#4003) 

Signed-off-by: Pierre-Henri Symoneaux <pierre-henri.symoneaux@ovhcloud.com>
This commit is contained in:
Pierre-Henri Symoneaux 2024-06-22 16:19:04 +02:00 committed by GitHub
parent 9c081de9cd
commit 626d55b0c0
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2 changed files with 12 additions and 1 deletions
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2
gin.go
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@ -687,7 +687,7 @@ func (engine *Engine) handleHTTPRequest(c *Context) {
break
}
if engine.HandleMethodNotAllowed {
if engine.HandleMethodNotAllowed && len(t) > 0 {
// According to RFC 7231 section 6.5.5, MUST generate an Allow header field in response
// containing a list of the target resource's currently supported methods.
allowed := make([]string, 0, len(t)-1)

11
gin_test.go
View File

@ -754,3 +754,14 @@ func TestCustomUnmarshalStruct(t *testing.T) {
assert.Equal(t, 200, w.Code)
assert.Equal(t, `"2000/01/01"`, w.Body.String())
}
// Test the fix for https://github.com/gin-gonic/gin/issues/4002
func TestMethodNotAllowedNoRoute(t *testing.T) {
g := New()
g.HandleMethodNotAllowed = true
req := httptest.NewRequest("GET", "/", nil)
resp := httptest.NewRecorder()
assert.NotPanics(t, func() { g.ServeHTTP(resp, req) })
assert.Equal(t, http.StatusNotFound, resp.Code)
}