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fix Request.Context() checks (#3512) 

Co-authored-by: Bence Vidosits <bence.vidosits1@ibm.com>
This commit is contained in:
Bence Vidosits 2023-05-29 01:59:35 +00:00 committed by GitHub
parent 2d4bbec941
commit bb1fc2e0fe
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2 changed files with 29 additions and 4 deletions
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15
context.go
View File

@ -1180,9 +1180,16 @@ func (c *Context) SetAccepted(formats ...string) {
/***** GOLANG.ORG/X/NET/CONTEXT *****/ /***** GOLANG.ORG/X/NET/CONTEXT *****/
/************************************/ /************************************/
// hasRequestContext returns whether c.Request has Context and fallback.
func (c *Context) hasRequestContext() bool {
hasFallback := c.engine != nil && c.engine.ContextWithFallback
hasRequestContext := c.Request != nil && c.Request.Context() != nil
return hasFallback && hasRequestContext
}
// Deadline returns that there is no deadline (ok==false) when c.Request has no Context. // Deadline returns that there is no deadline (ok==false) when c.Request has no Context.
func (c *Context) Deadline() (deadline time.Time, ok bool) { func (c *Context) Deadline() (deadline time.Time, ok bool) {
if !c.engine.ContextWithFallback || c.Request == nil || c.Request.Context() == nil { if !c.hasRequestContext() {
return return
} }
return c.Request.Context().Deadline() return c.Request.Context().Deadline()
@ -1190,7 +1197,7 @@ func (c *Context) Deadline() (deadline time.Time, ok bool) {
// Done returns nil (chan which will wait forever) when c.Request has no Context. // Done returns nil (chan which will wait forever) when c.Request has no Context.
func (c *Context) Done() <-chan struct{} { func (c *Context) Done() <-chan struct{} {
if !c.engine.ContextWithFallback || c.Request == nil || c.Request.Context() == nil { if !c.hasRequestContext() {
return nil return nil
} }
return c.Request.Context().Done() return c.Request.Context().Done()
@ -1198,7 +1205,7 @@ func (c *Context) Done() <-chan struct{} {
// Err returns nil when c.Request has no Context. // Err returns nil when c.Request has no Context.
func (c *Context) Err() error { func (c *Context) Err() error {
if !c.engine.ContextWithFallback || c.Request == nil || c.Request.Context() == nil { if !c.hasRequestContext() {
return nil return nil
} }
return c.Request.Context().Err() return c.Request.Context().Err()
@ -1219,7 +1226,7 @@ func (c *Context) Value(key any) any {
return val return val
} }
} }
if !c.engine.ContextWithFallback || c.Request == nil || c.Request.Context() == nil { if !c.hasRequestContext() {
return nil return nil
} }
return c.Request.Context().Value(key) return c.Request.Context().Value(key)

18
context_test.go
View File

@ -2176,6 +2176,24 @@ func TestRemoteIPFail(t *testing.T) {
assert.False(t, trust) assert.False(t, trust)
} }
func TestHasRequestContext(t *testing.T) {
c, _ := CreateTestContext(httptest.NewRecorder())
assert.False(t, c.hasRequestContext(), "no request, no fallback")
c.engine.ContextWithFallback = true
assert.False(t, c.hasRequestContext(), "no request, has fallback")
c.Request, _ = http.NewRequest(http.MethodGet, "/", nil)
assert.True(t, c.hasRequestContext(), "has request, has fallback")
c.Request, _ = http.NewRequestWithContext(nil, "", "", nil) //nolint:staticcheck
assert.False(t, c.hasRequestContext(), "has request with nil ctx, has fallback")
c.engine.ContextWithFallback = false
assert.False(t, c.hasRequestContext(), "has request, no fallback")
c = &Context{}
assert.False(t, c.hasRequestContext(), "no request, no engine")
c.Request, _ = http.NewRequest(http.MethodGet, "/", nil)
assert.False(t, c.hasRequestContext(), "has request, no engine")
}
func TestContextWithFallbackDeadlineFromRequestContext(t *testing.T) { func TestContextWithFallbackDeadlineFromRequestContext(t *testing.T) {
c, _ := CreateTestContext(httptest.NewRecorder()) c, _ := CreateTestContext(httptest.NewRecorder())
// enable ContextWithFallback feature flag // enable ContextWithFallback feature flag