package discovery import ( "archive/zip" "encoding/json" "fmt" "io" "io/ioutil" "log" "net" "net/http" "net/http/httptest" "os" "path/filepath" "reflect" "runtime" "strings" "testing" "github.com/hashicorp/terraform/registry" "github.com/hashicorp/terraform/registry/response" "github.com/hashicorp/terraform/svchost" "github.com/hashicorp/terraform/svchost/disco" "github.com/mitchellh/cli" ) const testProviderFile = "test provider binary" func TestMain(m *testing.M) { server := testReleaseServer() l, err := net.Listen("tcp", "127.0.0.1:8080") if err != nil { log.Fatal(err) } // NewUnstartedServer creates a listener. Close that listener and replace // with the one we created. server.Listener.Close() server.Listener = l server.Start() defer server.Close() os.Exit(m.Run()) } // return the directory listing for the "test" provider func testListingHandler(w http.ResponseWriter, r *http.Request) { parts := strings.Split(r.URL.Path, "/") if len(parts) != 6 { http.Error(w, "not found", http.StatusNotFound) return } provider := parts[4] if provider == "test" { js, err := json.Marshal(versionList) if err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) return } w.Write(js) } http.Error(w, ErrorNoSuchProvider.Error(), http.StatusNotFound) return } // return the download URLs for the "test" provider func testDownloadHandler(w http.ResponseWriter, r *http.Request) { js, err := json.Marshal(downloadURLs) if err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) return } w.Write(js) } func testChecksumHandler(w http.ResponseWriter, r *http.Request) { // this exact plugin has a signature and checksum file if r.URL.Path == "/terraform-provider-template/0.1.0/terraform-provider-template_0.1.0_SHA256SUMS" { http.ServeFile(w, r, "testdata/terraform-provider-template_0.1.0_SHA256SUMS") return } if r.URL.Path == "/terraform-provider-template/0.1.0/terraform-provider-template_0.1.0_SHA256SUMS.sig" { http.ServeFile(w, r, "testdata/terraform-provider-template_0.1.0_SHA256SUMS.sig") return } // this this checksum file is corrupt and doesn't match the sig if r.URL.Path == "/terraform-provider-badsig/0.1.0/terraform-provider-badsig_0.1.0_SHA256SUMS" { http.ServeFile(w, r, "testdata/terraform-provider-badsig_0.1.0_SHA256SUMS") return } if r.URL.Path == "/terraform-provider-badsig/0.1.0/terraform-provider-badsig_0.1.0_SHA256SUMS.sig" { http.ServeFile(w, r, "testdata/terraform-provider-badsig_0.1.0_SHA256SUMS.sig") return } http.Error(w, "signtaure files not found", http.StatusNotFound) } // returns a 200 for a valid provider url, using the patch number for the // plugin protocol version. func testHandler(w http.ResponseWriter, r *http.Request) { if strings.HasSuffix(r.URL.Path, "/versions") { testListingHandler(w, r) return } if strings.Contains(r.URL.Path, "/download") { testDownloadHandler(w, r) return } parts := strings.Split(r.URL.Path, "/") if len(parts) != 7 { http.Error(w, "not found", http.StatusNotFound) return } // write a dummy file z := zip.NewWriter(w) fn := fmt.Sprintf("%s_v%s", parts[4], parts[5]) f, err := z.Create(fn) if err != nil { panic(err) } io.WriteString(f, testProviderFile) z.Close() } func testReleaseServer() *httptest.Server { handler := http.NewServeMux() handler.HandleFunc("/v1/providers/-/", testHandler) handler.HandleFunc("/v1/providers/terraform-providers/", testHandler) handler.HandleFunc("/terraform-provider-template/", testChecksumHandler) handler.HandleFunc("/terraform-provider-badsig/", testChecksumHandler) handler.HandleFunc("/.well-known/terraform.json", func(w http.ResponseWriter, r *http.Request) { w.Header().Set("Content-Type", "application/json") io.WriteString(w, `{"modules.v1":"http://localhost/v1/modules/", "providers.v1":"http://localhost/v1/providers/"}`) }) return httptest.NewUnstartedServer(handler) } func TestVersionListing(t *testing.T) { server := testReleaseServer() server.Start() defer server.Close() i := newProviderInstaller(server) allVersions, err := i.listProviderVersions("test") if err != nil { t.Fatal(err) } var versions []*response.TerraformProviderVersion for _, v := range allVersions.Versions { versions = append(versions, v) } response.ProviderVersionCollection(versions).Sort() expected := []*response.TerraformProviderVersion{ {Version: "1.2.4"}, {Version: "1.2.3"}, {Version: "1.2.1"}, } if len(versions) != len(expected) { t.Fatalf("Received wrong number of versions. expected: %q, got: %q", expected, versions) } for i, v := range versions { if v.Version != expected[i].Version { t.Fatalf("incorrect version: %q, expected %q", v, expected[i]) } } } func TestCheckProtocolVersions(t *testing.T) { tests := []struct { VersionMeta *response.TerraformProviderVersion Err bool }{ { &response.TerraformProviderVersion{ Protocols: []string{"1", "2"}, }, true, }, { &response.TerraformProviderVersion{ Protocols: []string{"4"}, }, false, }, { &response.TerraformProviderVersion{ Protocols: []string{"4.2"}, }, false, }, { &response.TerraformProviderVersion{ Protocols: []string{"4.0", "5.2"}, }, false, }, { &response.TerraformProviderVersion{ Protocols: []string{"5.0", "6.1"}, }, true, }, } server := testReleaseServer() server.Start() defer server.Close() i := newProviderInstaller(server) for _, test := range tests { err := i.checkPluginProtocol(test.VersionMeta) if test.Err { if err == nil { t.Fatal("succeeded; want error") } } else if err != nil { t.Fatalf("unexpected error: %s", err) } } } func TestFindClosestProtocolCompatibleVersion(t *testing.T) { testCases := []struct { Name string PluginProtocolVersion uint ProviderVersions []*response.TerraformProviderVersion ExpectedVersion string Err bool }{ { "no compatible version", 5, []*response.TerraformProviderVersion{ &response.TerraformProviderVersion{ Version: "1.0.0", Protocols: []string{"4.0"}, }, }, "", true, }, { "equal, suggests latest", 4, []*response.TerraformProviderVersion{ &response.TerraformProviderVersion{ Version: "1.0.0", Protocols: []string{"4.0"}, }, &response.TerraformProviderVersion{ Version: "1.5.0", Protocols: []string{"4.0"}, }, }, "1.5.0", false, }, { "provider protocol too old, suggests earliest", 5, []*response.TerraformProviderVersion{ &response.TerraformProviderVersion{ Version: "1.0.0", Protocols: []string{"4.0"}, }, &response.TerraformProviderVersion{ Version: "2.0.0", Protocols: []string{"4.0", "5.0"}, }, &response.TerraformProviderVersion{ Version: "2.5.0", Protocols: []string{"4.0", "5.0"}, }, &response.TerraformProviderVersion{ Version: "3.0.0", Protocols: []string{"5.0"}, }, }, "2.0.0", false, }, { "provider protocol too new, suggests latest", 4, []*response.TerraformProviderVersion{ &response.TerraformProviderVersion{ Version: "1.0.0", Protocols: []string{"4.0"}, }, &response.TerraformProviderVersion{ Version: "2.0.0", Protocols: []string{"4.0", "5.0"}, }, &response.TerraformProviderVersion{ Version: "2.5.0", Protocols: []string{"4.0", "5.0"}, }, &response.TerraformProviderVersion{ Version: "3.0.0", Protocols: []string{"5.0"}, }, }, "2.5.0", false, }, { "compatible prereleses are filtered", 5, []*response.TerraformProviderVersion{ &response.TerraformProviderVersion{ Version: "2.0.0-alpha", Protocols: []string{"4.0", "5.0"}, }, }, "", true, }, { "suggests latest non-prerelease", 4, []*response.TerraformProviderVersion{ &response.TerraformProviderVersion{ Version: "2.0.0-alpha", Protocols: []string{"4.0", "5.0"}, }, &response.TerraformProviderVersion{ Version: "2.0.0", Protocols: []string{"4.0", "5.0"}, }, &response.TerraformProviderVersion{ Version: "2.5.0-pre", Protocols: []string{"4.0", "5.0"}, }, &response.TerraformProviderVersion{ Version: "2.5.0", Protocols: []string{"4.0", "5.0"}, }, }, "2.5.0", false, }, { "suggests earliest non-prerelease", 5, []*response.TerraformProviderVersion{ &response.TerraformProviderVersion{ Version: "2.0.0-alpha", Protocols: []string{"4.0", "5.0"}, }, &response.TerraformProviderVersion{ Version: "2.0.0", Protocols: []string{"4.0", "5.0"}, }, &response.TerraformProviderVersion{ Version: "2.6.0", Protocols: []string{"4.0", "5.0"}, }, &response.TerraformProviderVersion{ Version: "3.0.0", Protocols: []string{"5.0"}, }, }, "2.0.0", false, }, } for _, tc := range testCases { t.Run(tc.Name, func(t *testing.T) { i := ProviderInstaller{ Ui: cli.NewMockUi(), PluginProtocolVersion: tc.PluginProtocolVersion, } closestMatch, err := i.findClosestProtocolCompatibleVersion(tc.ProviderVersions) if err != nil { if !tc.Err { t.Fatalf("unexpected error: %q", err) } return } if tc.ExpectedVersion != closestMatch.Version { t.Errorf("Expected %q, got %q", tc.ExpectedVersion, closestMatch.Version) } }) } } func TestProviderInstallerGet(t *testing.T) { server := testReleaseServer() server.Start() defer server.Close() tmpDir, err := ioutil.TempDir("", "tf-plugin") if err != nil { t.Fatal(err) } defer os.RemoveAll(tmpDir) // attempt to use an incompatible protocol version i := &ProviderInstaller{ Dir: tmpDir, PluginProtocolVersion: 5, SkipVerify: true, Ui: cli.NewMockUi(), registry: registry.NewClient(Disco(server), nil), } _, err = i.Get("test", AllVersions) if err != ErrorNoVersionCompatibleWithPlatform { t.Fatal("want error for incompatible version") } i = &ProviderInstaller{ Dir: tmpDir, PluginProtocolVersion: 4, SkipVerify: true, Ui: cli.NewMockUi(), registry: registry.NewClient(Disco(server), nil), OS: "mockos", Arch: "mockarch", } { _, err := i.Get("test", ConstraintStr(">9.0.0").MustParse()) if err != ErrorNoSuitableVersion { t.Fatal("want error for mismatching constraints") } } { _, err := i.Get("nonexist", AllVersions) if err != ErrorNoSuchProvider { t.Fatal("want error for no such provider") } } gotMeta, err := i.Get("test", AllVersions) if err != nil { t.Fatal(err) } // we should have version 1.2.4 dest := filepath.Join(tmpDir, "terraform-provider-test_v1.2.4") wantMeta := PluginMeta{ Name: "test", Version: VersionStr("1.2.4"), Path: dest, } if !reflect.DeepEqual(gotMeta, wantMeta) { t.Errorf("wrong result meta\ngot: %#v\nwant: %#v", gotMeta, wantMeta) } f, err := ioutil.ReadFile(dest) if err != nil { t.Fatal(err) } // provider should have been unzipped if string(f) != testProviderFile { t.Fatalf("test provider contains: %q", f) } } func TestProviderInstallerPurgeUnused(t *testing.T) { server := testReleaseServer() defer server.Close() tmpDir, err := ioutil.TempDir("", "tf-plugin") if err != nil { t.Fatal(err) } defer os.RemoveAll(tmpDir) unwantedPath := filepath.Join(tmpDir, "terraform-provider-test_v0.0.1_x2") wantedPath := filepath.Join(tmpDir, "terraform-provider-test_v1.2.3_x3") f, err := os.Create(unwantedPath) if err != nil { t.Fatal(err) } f.Close() f, err = os.Create(wantedPath) if err != nil { t.Fatal(err) } f.Close() i := &ProviderInstaller{ Dir: tmpDir, PluginProtocolVersion: 3, SkipVerify: true, Ui: cli.NewMockUi(), registry: registry.NewClient(Disco(server), nil), } purged, err := i.PurgeUnused(map[string]PluginMeta{ "test": PluginMeta{ Name: "test", Version: VersionStr("1.2.3"), Path: wantedPath, }, }) if err != nil { t.Fatal(err) } if got, want := purged.Count(), 1; got != want { t.Errorf("wrong purged count %d; want %d", got, want) } if got, want := purged.Newest().Path, unwantedPath; got != want { t.Errorf("wrong purged path %s; want %s", got, want) } files, err := ioutil.ReadDir(tmpDir) if err != nil { t.Fatal(err) } gotFilenames := make([]string, len(files)) for i, info := range files { gotFilenames[i] = info.Name() } wantFilenames := []string{"terraform-provider-test_v1.2.3_x3"} if !reflect.DeepEqual(gotFilenames, wantFilenames) { t.Errorf("wrong filenames after purge\ngot: %#v\nwant: %#v", gotFilenames, wantFilenames) } } // Test fetching a provider's checksum file while verifying its signature. func TestProviderChecksum(t *testing.T) { hashicorpKey, err := ioutil.ReadFile("testdata/hashicorp.asc") if err != nil { t.Fatal(err) } tests := []struct { Name string URLs *response.TerraformProviderPlatformLocation Err bool }{ { "good", &response.TerraformProviderPlatformLocation{ Filename: "terraform-provider-template_0.1.0_darwin_amd64.zip", ShasumsURL: "http://127.0.0.1:8080/terraform-provider-template/0.1.0/terraform-provider-template_0.1.0_SHA256SUMS", ShasumsSignatureURL: "http://127.0.0.1:8080/terraform-provider-template/0.1.0/terraform-provider-template_0.1.0_SHA256SUMS.sig", SigningKeys: response.SigningKeyList{ GPGKeys: []*response.GPGKey{ &response.GPGKey{ ASCIIArmor: string(hashicorpKey), }, }, }, }, false, }, { "bad", &response.TerraformProviderPlatformLocation{ Filename: "terraform-provider-template_0.1.0_darwin_amd64.zip", ShasumsURL: "http://127.0.0.1:8080/terraform-provider-badsig/0.1.0/terraform-provider-badsig_0.1.0_SHA256SUMS", ShasumsSignatureURL: "http://127.0.0.1:8080/terraform-provider-badsig/0.1.0/terraform-provider-badsig_0.1.0_SHA256SUMS.sig", SigningKeys: response.SigningKeyList{ GPGKeys: []*response.GPGKey{ &response.GPGKey{ ASCIIArmor: string(hashicorpKey), }, }, }, }, true, }, { "no keys", &response.TerraformProviderPlatformLocation{ Filename: "terraform-provider-template_0.1.0_darwin_amd64.zip", ShasumsURL: "http://127.0.0.1:8080/terraform-provider-template/0.1.0/terraform-provider-template_0.1.0_SHA256SUMS", ShasumsSignatureURL: "http://127.0.0.1:8080/terraform-provider-template/0.1.0/terraform-provider-template_0.1.0_SHA256SUMS.sig", SigningKeys: response.SigningKeyList{ GPGKeys: []*response.GPGKey{}, }, }, true, }, } i := ProviderInstaller{} for _, test := range tests { sha256sum, err := i.getProviderChecksum(test.URLs) if test.Err { if err == nil { t.Fatal("succeeded; want error") } return } else if err != nil { t.Fatalf("unexpected error: %s", err) } // get the expected checksum for our os/arch sumData, err := ioutil.ReadFile("testdata/terraform-provider-template_0.1.0_SHA256SUMS") if err != nil { t.Fatal(err) } expected := checksumForFile(sumData, test.URLs.Filename) if sha256sum != expected { t.Fatalf("expected: %s\ngot %s\n", sha256sum, expected) } } } // newProviderInstaller returns a minimally-initialized ProviderInstaller func newProviderInstaller(s *httptest.Server) ProviderInstaller { return ProviderInstaller{ registry: registry.NewClient(Disco(s), nil), OS: runtime.GOOS, Arch: runtime.GOARCH, PluginProtocolVersion: 4, } } // Disco return a *disco.Disco mapping registry.terraform.io, localhost, // localhost.localdomain, and example.com to the test server. func Disco(s *httptest.Server) *disco.Disco { services := map[string]interface{}{ // Note that both with and without trailing slashes are supported behaviours "modules.v1": fmt.Sprintf("%s/v1/modules", s.URL), "providers.v1": fmt.Sprintf("%s/v1/providers", s.URL), } d := disco.New() d.ForceHostServices(svchost.Hostname("registry.terraform.io"), services) d.ForceHostServices(svchost.Hostname("localhost"), services) d.ForceHostServices(svchost.Hostname("localhost.localdomain"), services) d.ForceHostServices(svchost.Hostname("example.com"), services) return d } var versionList = response.TerraformProvider{ ID: "terraform-providers/test", Versions: []*response.TerraformProviderVersion{ {Version: "1.2.1"}, {Version: "1.2.3"}, { Version: "1.2.4", Protocols: []string{"4"}, Platforms: []*response.TerraformProviderPlatform{ { OS: "mockos", Arch: "mockarch", }, }, }, }, } var downloadURLs = response.TerraformProviderPlatformLocation{ ShasumsURL: "https://registry.terraform.io/terraform-provider-template/1.2.4/terraform-provider-test_1.2.4_SHA256SUMS", ShasumsSignatureURL: "https://registry.terraform.io/terraform-provider-template/1.2.4/terraform-provider-test_1.2.4_SHA256SUMS.sig", Filename: "terraform-provider-template_1.2.4_darwin_amd64.zip", DownloadURL: "http://127.0.0.1:8080/v1/providers/terraform-providers/terraform-provider-test/1.2.4/terraform-provider-test_1.2.4_darwin_amd64.zip", }