From 4d02220019dbe73903046e7ceeb0038f81c795a1 Mon Sep 17 00:00:00 2001 From: Michael Marineau Date: Tue, 13 Sep 2016 15:58:20 -0700 Subject: [PATCH] omaha: add basic but functional omaha server for testing This server doesn't care about app id, versions, or really anything. Once a payload has been set it will use it for all update requests. --- omaha/trivial_server.go | 100 ++++++++++++++++++++++++++++++++ omaha/trivial_server_test.go | 108 +++++++++++++++++++++++++++++++++++ 2 files changed, 208 insertions(+) create mode 100644 omaha/trivial_server.go create mode 100644 omaha/trivial_server_test.go diff --git a/omaha/trivial_server.go b/omaha/trivial_server.go new file mode 100644 index 0000000..2d38792 --- /dev/null +++ b/omaha/trivial_server.go @@ -0,0 +1,100 @@ +// Copyright 2016 CoreOS, Inc. +// +// 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 omaha + +import ( + "fmt" + "net/http" + "path" +) + +const pkg_prefix = "/packages/" + +// trivialUpdater always responds with the given Update. +type trivialUpdater struct { + UpdaterStub + Update +} + +func (tu *trivialUpdater) CheckUpdate(req *Request, app *AppRequest) (*Update, error) { + if len(tu.Manifest.Packages) == 0 { + return nil, NoUpdate + } + return &tu.Update, nil +} + +// trivialHandler serves up a single file. +type trivialHandler struct { + Path string +} + +func (th *trivialHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { + if th.Path == "" { + http.NotFound(w, r) + } + http.ServeFile(w, r, th.Path) +} + +// TrivialServer is an extremely basic Omaha server that ignores all +// incoming metadata, always responding with the same update response. +// The update is constructed by calling AddPackage one or more times. +type TrivialServer struct { + *Server + tu trivialUpdater +} + +func NewTrivialServer(addr string) (*TrivialServer, error) { + ts := TrivialServer{ + tu: trivialUpdater{ + Update: Update{ + URL: URL{CodeBase: pkg_prefix}, + }, + }, + } + + s, err := NewServer(addr, &ts.tu) + if err != nil { + return nil, err + } + ts.Server = s + + return &ts, nil +} + +// AddPackage adds a new file to the update response. +// file is the local filesystem path, name is the final URL component. +func (ts *TrivialServer) AddPackage(file, name string) error { + // name may not include any path components + if path.Base(name) != name || name[0] == '.' { + return fmt.Errorf("invalid package name %q", name) + } + + pkg, err := ts.tu.Manifest.AddPackageFromPath(file) + if err != nil { + return err + } + pkg.Name = name + + // Insert the update_engine style postinstall action if + // this is the first (and probably only) package. + if len(ts.tu.Manifest.Actions) == 0 { + act := ts.tu.Manifest.AddAction("postinstall") + act.DisablePayloadBackoff = true + act.Sha256 = pkg.Sha256 + } + + ts.Mux.Handle(pkg_prefix+name, &trivialHandler{file}) + return nil +} diff --git a/omaha/trivial_server_test.go b/omaha/trivial_server_test.go new file mode 100644 index 0000000..df80d02 --- /dev/null +++ b/omaha/trivial_server_test.go @@ -0,0 +1,108 @@ +// Copyright 2015 CoreOS, Inc. +// +// 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 omaha + +import ( + "bytes" + "encoding/xml" + "fmt" + "io/ioutil" + "net/http" + "os" + "testing" +) + +func mkUpdateReq() (*bytes.Buffer, error) { + req := NewRequest() + app := req.AddApp(testAppId, testAppVer) + app.AddUpdateCheck() + + buf := &bytes.Buffer{} + enc := xml.NewEncoder(buf) + enc.Indent("", "\t") + if err := enc.Encode(req); err != nil { + return nil, err + } + + return buf, nil +} + +func TestTrivialServer(t *testing.T) { + tmp, err := ioutil.TempFile("", "") + if err != nil { + t.Fatal(err) + } + defer tmp.Close() + defer os.Remove(tmp.Name()) + + if _, err := tmp.WriteString("test"); err != nil { + t.Fatal(err) + } + + s, err := NewTrivialServer(":0") + if err != nil { + t.Fatal(err) + } + defer s.Destroy() + if err := s.AddPackage(tmp.Name(), "update.gz"); err != nil { + t.Fatal(err) + } + go s.Serve() + + buf, err := mkUpdateReq() + if err != nil { + t.Fatal(err) + } + + endpoint := fmt.Sprintf("http://%s/v1/update/", s.Addr()) + res, err := http.Post(endpoint, "text/xml", buf) + if err != nil { + t.Fatal(err) + } + defer res.Body.Close() + if res.StatusCode != 200 { + t.Fatalf("failed to post: %v", res.Status) + } + + dec := xml.NewDecoder(res.Body) + resp := &Response{} + if err := dec.Decode(resp); err != nil { + t.Fatalf("failed to parse body: %v", err) + } + + if len(resp.Apps) != 1 || + resp.Apps[0].UpdateCheck == nil || + resp.Apps[0].UpdateCheck.Status != UpdateOK || + len(resp.Apps[0].UpdateCheck.URLs) != 1 || + resp.Apps[0].UpdateCheck.Manifest == nil || + len(resp.Apps[0].UpdateCheck.Manifest.Packages) != 1 { + t.Fatalf("unexpected response: %#v", resp) + } + + pkgres, err := http.Get(resp.Apps[0].UpdateCheck.URLs[0].CodeBase + + resp.Apps[0].UpdateCheck.Manifest.Packages[0].Name) + if err != nil { + t.Fatal(err) + } + pkgdata, err := ioutil.ReadAll(pkgres.Body) + pkgres.Body.Close() + if err != nil { + t.Fatal(err) + } + + if string(pkgdata) != "test" { + t.Fatalf("unexpected package data: %q", string(pkgdata)) + } +}