From bd17eb205d6ac464c64eb888a6f4b57445b6c59c Mon Sep 17 00:00:00 2001 From: Dave Henderson Date: Sun, 22 Nov 2020 16:50:29 -0500 Subject: ci: Use golangci's github action for linting (#3794) * ci: Use golangci's github action for linting Signed-off-by: Dave Henderson * Fix most of the staticcheck lint errors Signed-off-by: Dave Henderson * Fix the prealloc lint errors Signed-off-by: Dave Henderson * Fix the misspell lint errors Signed-off-by: Dave Henderson * Fix the varcheck lint errors Signed-off-by: Dave Henderson * Fix the errcheck lint errors Signed-off-by: Dave Henderson * Fix the bodyclose lint errors Signed-off-by: Dave Henderson * Fix the deadcode lint errors Signed-off-by: Dave Henderson * Fix the unused lint errors Signed-off-by: Dave Henderson * Fix the gosec lint errors Signed-off-by: Dave Henderson * Fix the gosimple lint errors Signed-off-by: Dave Henderson * Fix the ineffassign lint errors Signed-off-by: Dave Henderson * Fix the staticcheck lint errors Signed-off-by: Dave Henderson * Revert the misspell change, use a neutral English Signed-off-by: Dave Henderson * Remove broken golangci-lint CI job Signed-off-by: Dave Henderson * Re-add errantly-removed weakrand initialization Signed-off-by: Dave Henderson * don't break the loop and return * Removing extra handling for null rootKey * unignore RegisterModule/RegisterAdapter Co-authored-by: Mohammed Al Sahaf * single-line log message Co-authored-by: Matt Holt * Fix lint after a1808b0dbf209c615e438a496d257ce5e3acdce2 was merged Signed-off-by: Dave Henderson * Revert ticker change, ignore it instead Signed-off-by: Dave Henderson * Ignore some of the write errors Signed-off-by: Dave Henderson * Remove blank line Signed-off-by: Dave Henderson * Use lifetime Signed-off-by: Dave Henderson * close immediately Co-authored-by: Matt Holt * Preallocate configVals Signed-off-by: Dave Henderson * Update modules/caddytls/distributedstek/distributedstek.go Co-authored-by: Mohammed Al Sahaf Co-authored-by: Matt Holt --- modules/caddyhttp/reverseproxy/fastcgi/client.go | 7 ----- modules/caddyhttp/reverseproxy/healthchecks.go | 2 +- modules/caddyhttp/reverseproxy/httptransport.go | 1 + modules/caddyhttp/reverseproxy/reverseproxy.go | 29 +++------------------ .../caddyhttp/reverseproxy/selectionpolicies.go | 2 +- modules/caddyhttp/reverseproxy/streaming.go | 11 +++++--- modules/caddyhttp/reverseproxy/streaming_test.go | 30 ++++++++++++++++++++++ 7 files changed, 45 insertions(+), 37 deletions(-) create mode 100644 modules/caddyhttp/reverseproxy/streaming_test.go (limited to 'modules/caddyhttp/reverseproxy') diff --git a/modules/caddyhttp/reverseproxy/fastcgi/client.go b/modules/caddyhttp/reverseproxy/fastcgi/client.go index ae0de00..94df0c7 100644 --- a/modules/caddyhttp/reverseproxy/fastcgi/client.go +++ b/modules/caddyhttp/reverseproxy/fastcgi/client.go @@ -242,13 +242,6 @@ func (c *FCGIClient) writeBeginRequest(role uint16, flags uint8) error { return c.writeRecord(BeginRequest, b[:]) } -func (c *FCGIClient) writeEndRequest(appStatus int, protocolStatus uint8) error { - b := make([]byte, 8) - binary.BigEndian.PutUint32(b, uint32(appStatus)) - b[4] = protocolStatus - return c.writeRecord(EndRequest, b) -} - func (c *FCGIClient) writePairs(recType uint8, pairs map[string]string) error { w := newWriter(c, recType) b := make([]byte, 8) diff --git a/modules/caddyhttp/reverseproxy/healthchecks.go b/modules/caddyhttp/reverseproxy/healthchecks.go index 4e93320..285834b 100644 --- a/modules/caddyhttp/reverseproxy/healthchecks.go +++ b/modules/caddyhttp/reverseproxy/healthchecks.go @@ -263,7 +263,7 @@ func (h *Handler) doActiveHealthCheck(dialInfo DialInfo, hostAddr string, host H } defer func() { // drain any remaining body so connection could be re-used - io.Copy(ioutil.Discard, body) + _, _ = io.Copy(ioutil.Discard, body) resp.Body.Close() }() diff --git a/modules/caddyhttp/reverseproxy/httptransport.go b/modules/caddyhttp/reverseproxy/httptransport.go index d2a9951..61e9054 100644 --- a/modules/caddyhttp/reverseproxy/httptransport.go +++ b/modules/caddyhttp/reverseproxy/httptransport.go @@ -173,6 +173,7 @@ func (h *HTTPTransport) NewTransport(ctx caddy.Context) (*http.Transport, error) dialer.Resolver = &net.Resolver{ PreferGo: true, Dial: func(ctx context.Context, _, _ string) (net.Conn, error) { + //nolint:gosec addr := h.Resolver.netAddrs[weakrand.Intn(len(h.Resolver.netAddrs))] return d.DialContext(ctx, addr.Network, addr.JoinHostPort(0)) }, diff --git a/modules/caddyhttp/reverseproxy/reverseproxy.go b/modules/caddyhttp/reverseproxy/reverseproxy.go index 7fc61ae..bed5289 100644 --- a/modules/caddyhttp/reverseproxy/reverseproxy.go +++ b/modules/caddyhttp/reverseproxy/reverseproxy.go @@ -314,7 +314,7 @@ func (h *Handler) Cleanup() error { // remove hosts from our config from the pool for _, upstream := range h.Upstreams { - hosts.Delete(upstream.String()) + _, _ = hosts.Delete(upstream.String()) } return nil @@ -339,7 +339,7 @@ func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request, next caddyht buf := bufPool.Get().(*bytes.Buffer) buf.Reset() defer bufPool.Put(buf) - io.Copy(buf, r.Body) + _, _ = io.Copy(buf, r.Body) r.Body.Close() r.Body = ioutil.NopCloser(buf) } @@ -518,7 +518,8 @@ func (h Handler) prepareRequest(req *http.Request) error { // (This method is mostly the beginning of what was borrowed from the net/http/httputil package in the // Go standard library which was used as the foundation.) func (h *Handler) reverseProxy(rw http.ResponseWriter, req *http.Request, di DialInfo, next caddyhttp.Handler) error { - di.Upstream.Host.CountRequest(1) + _ = di.Upstream.Host.CountRequest(1) + //nolint:errcheck defer di.Upstream.Host.CountRequest(-1) // point the request to this upstream @@ -742,16 +743,6 @@ func copyHeader(dst, src http.Header) { } } -func cloneHeader(h http.Header) http.Header { - h2 := make(http.Header, len(h)) - for k, vv := range h { - vv2 := make([]string, len(vv)) - copy(vv2, vv) - h2[k] = vv2 - } - return h2 -} - func upgradeType(h http.Header) string { if !httpguts.HeaderValuesContainsToken(h["Connection"], "Upgrade") { return "" @@ -759,18 +750,6 @@ func upgradeType(h http.Header) string { return strings.ToLower(h.Get("Upgrade")) } -func singleJoiningSlash(a, b string) string { - aslash := strings.HasSuffix(a, "/") - bslash := strings.HasPrefix(b, "/") - switch { - case aslash && bslash: - return a + b[1:] - case !aslash && !bslash: - return a + "/" + b - } - return a + b -} - // removeConnectionHeaders removes hop-by-hop headers listed in the "Connection" header of h. // See RFC 7230, section 6.1 func removeConnectionHeaders(h http.Header) { diff --git a/modules/caddyhttp/reverseproxy/selectionpolicies.go b/modules/caddyhttp/reverseproxy/selectionpolicies.go index a1010f4..a391b2f 100644 --- a/modules/caddyhttp/reverseproxy/selectionpolicies.go +++ b/modules/caddyhttp/reverseproxy/selectionpolicies.go @@ -536,7 +536,7 @@ func hostByHashing(pool []*Upstream, s string) *Upstream { // hash calculates a fast hash based on s. func hash(s string) uint32 { h := fnv.New32a() - h.Write([]byte(s)) + _, _ = h.Write([]byte(s)) return h.Sum32() } diff --git a/modules/caddyhttp/reverseproxy/streaming.go b/modules/caddyhttp/reverseproxy/streaming.go index 4004b7a..f108a97 100644 --- a/modules/caddyhttp/reverseproxy/streaming.go +++ b/modules/caddyhttp/reverseproxy/streaming.go @@ -138,9 +138,9 @@ func (h Handler) copyResponse(dst io.Writer, src io.Reader, flushInterval time.D } } - buf := streamingBufPool.Get().([]byte) + buf := streamingBufPool.Get().(*[]byte) defer streamingBufPool.Put(buf) - _, err := h.copyBuffer(dst, src, buf) + _, err := h.copyBuffer(dst, src, *buf) return err } @@ -255,7 +255,12 @@ func (c switchProtocolCopier) copyToBackend(errc chan<- error) { var streamingBufPool = sync.Pool{ New: func() interface{} { - return make([]byte, defaultBufferSize) + // The Pool's New function should generally only return pointer + // types, since a pointer can be put into the return interface + // value without an allocation + // - (from the package docs) + b := make([]byte, defaultBufferSize) + return &b }, } diff --git a/modules/caddyhttp/reverseproxy/streaming_test.go b/modules/caddyhttp/reverseproxy/streaming_test.go new file mode 100644 index 0000000..4ed1f1e --- /dev/null +++ b/modules/caddyhttp/reverseproxy/streaming_test.go @@ -0,0 +1,30 @@ +package reverseproxy + +import ( + "bytes" + "strings" + "testing" +) + +func TestHandlerCopyResponse(t *testing.T) { + h := Handler{} + testdata := []string{ + "", + strings.Repeat("a", defaultBufferSize), + strings.Repeat("123456789 123456789 123456789 12", 3000), + } + dst := bytes.NewBuffer(nil) + + for _, d := range testdata { + src := bytes.NewBuffer([]byte(d)) + dst.Reset() + err := h.copyResponse(dst, src, 0) + if err != nil { + t.Errorf("failed with error: %v", err) + } + out := dst.String() + if out != d { + t.Errorf("bad read: got %q", out) + } + } +} -- cgit v1.2.3