TUN-528: Move cloudflared into a separate repo

vendor/github.com/mholt/caddy/caddyhttp/pprof/pprof.go

@@ -0,0 +1,61 @@
+// Copyright 2015 Light Code Labs, LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package pprof
+
+import (
+	"net/http"
+	pp "net/http/pprof"
+
+	"github.com/mholt/caddy/caddyhttp/httpserver"
+)
+
+// BasePath is the base path to match for all pprof requests.
+const BasePath = "/debug/pprof"
+
+// Handler is a simple struct whose ServeHTTP will delegate pprof
+// endpoints to their equivalent net/http/pprof handlers.
+type Handler struct {
+	Next httpserver.Handler
+	Mux  *http.ServeMux
+}
+
+// ServeHTTP handles requests to BasePath with pprof, or passes
+// all other requests up the chain.
+func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error) {
+	if httpserver.Path(r.URL.Path).Matches(BasePath) {
+		h.Mux.ServeHTTP(w, r)
+		return 0, nil
+	}
+	return h.Next.ServeHTTP(w, r)
+}
+
+// NewMux returns a new http.ServeMux that routes pprof requests.
+// It pretty much copies what the std lib pprof does on init:
+// https://golang.org/src/net/http/pprof/pprof.go#L67
+func NewMux() *http.ServeMux {
+	mux := http.NewServeMux()
+	mux.HandleFunc(BasePath+"/", func(w http.ResponseWriter, r *http.Request) {
+		// this endpoint, as implemented in the standard library, doesn't set
+		// its Content-Type header, so using this can confuse clients, especially
+		// if gzipping...
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		pp.Index(w, r)
+	})
+	mux.HandleFunc(BasePath+"/cmdline", pp.Cmdline)
+	mux.HandleFunc(BasePath+"/profile", pp.Profile)
+	mux.HandleFunc(BasePath+"/symbol", pp.Symbol)
+	mux.HandleFunc(BasePath+"/trace", pp.Trace)
+	return mux
+}

vendor/github.com/mholt/caddy/caddyhttp/pprof/pprof_test.go

@@ -0,0 +1,69 @@
+// Copyright 2015 Light Code Labs, LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package pprof
+
+import (
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/mholt/caddy/caddyhttp/httpserver"
+)
+
+func TestServeHTTP(t *testing.T) {
+	h := Handler{
+		Next: httpserver.HandlerFunc(nextHandler),
+		Mux:  NewMux(),
+	}
+
+	w := httptest.NewRecorder()
+	r, err := http.NewRequest("GET", "/debug/pprof", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	status, err := h.ServeHTTP(w, r)
+
+	if status != 0 {
+		t.Errorf("Expected status %d but got %d", 0, status)
+	}
+	if err != nil {
+		t.Errorf("Expected nil error, but got: %v", err)
+	}
+	if w.Body.String() == "content" {
+		t.Errorf("Expected pprof to handle request, but it didn't")
+	}
+
+	w = httptest.NewRecorder()
+	r, err = http.NewRequest("GET", "/foo", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	status, err = h.ServeHTTP(w, r)
+	if status != http.StatusNotFound {
+		t.Errorf("Test two: Expected status %d but got %d", http.StatusNotFound, status)
+	}
+	if err != nil {
+		t.Errorf("Test two: Expected nil error, but got: %v", err)
+	}
+	if w.Body.String() != "content" {
+		t.Errorf("Expected pprof to pass the request through, but it didn't; got: %s", w.Body.String())
+	}
+}
+
+func nextHandler(w http.ResponseWriter, r *http.Request) (int, error) {
+	fmt.Fprintf(w, "content")
+	return http.StatusNotFound, nil
+}

vendor/github.com/mholt/caddy/caddyhttp/pprof/setup.go

@@ -0,0 +1,51 @@
+// Copyright 2015 Light Code Labs, LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package pprof
+
+import (
+	"github.com/mholt/caddy"
+	"github.com/mholt/caddy/caddyhttp/httpserver"
+)
+
+func init() {
+	caddy.RegisterPlugin("pprof", caddy.Plugin{
+		ServerType: "http",
+		Action:     setup,
+	})
+}
+
+// setup returns a new instance of a pprof handler. It accepts no arguments or options.
+func setup(c *caddy.Controller) error {
+	found := false
+
+	for c.Next() {
+		if found {
+			return c.Err("pprof can only be specified once")
+		}
+		if len(c.RemainingArgs()) != 0 {
+			return c.ArgErr()
+		}
+		if c.NextBlock() {
+			return c.ArgErr()
+		}
+		found = true
+	}
+
+	httpserver.GetConfig(c).AddMiddleware(func(next httpserver.Handler) httpserver.Handler {
+		return &Handler{Next: next, Mux: NewMux()}
+	})
+
+	return nil
+}

vendor/github.com/mholt/caddy/caddyhttp/pprof/setup_test.go

@@ -0,0 +1,46 @@
+// Copyright 2015 Light Code Labs, LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package pprof
+
+import (
+	"testing"
+
+	"github.com/mholt/caddy"
+)
+
+func TestSetup(t *testing.T) {
+	tests := []struct {
+		input     string
+		shouldErr bool
+	}{
+		{`pprof`, false},
+		{`pprof {}`, true},
+		{`pprof /foo`, true},
+		{`pprof {
+            a b
+        }`, true},
+		{`pprof
+          pprof`, true},
+	}
+	for i, test := range tests {
+		c := caddy.NewTestController("http", test.input)
+		err := setup(c)
+		if test.shouldErr && err == nil {
+			t.Errorf("Test %v: Expected error but found nil", i)
+		} else if !test.shouldErr && err != nil {
+			t.Errorf("Test %v: Expected no error but found error: %v", i, err)
+		}
+	}
+}