commit 94d5f3fb78a3f214d2a0587c5f370aec43507a82 Author: Thomas Bellembois Date: Mon Sep 5 16:15:29 2022 +0200 First commit. diff --git a/.drone.yml b/.drone.yml new file mode 100644 index 0000000..fbd3e41 --- /dev/null +++ b/.drone.yml @@ -0,0 +1,20 @@ +kind: pipeline +type: docker +name: build + +trigger: + event: + - push + +steps: + - name: docker-build + image: plugins/docker + settings: + dockerfile: Dockerfile + context: . + registry: hub.codefirst.iut.uca.fr + repo: hub.codefirst.iut.uca.fr/thomas.bellembois/codefirst-dockerrunner + username: + from_secret: SECRET_REGISTRY_USERNAME + password: + from_secret: SECRET_REGISTRY_PASSWORD \ No newline at end of file diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..b9abd17 --- /dev/null +++ b/.gitignore @@ -0,0 +1,24 @@ +# ---> Go +# If you prefer the allow list template instead of the deny list, see community template: +# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore +# +# Binaries for programs and plugins +*.exe +*.exe~ +*.dll +*.so +*.dylib + +# Test binary, built with `go test -c` +*.test + +# Output of the go coverage tool, specifically when used with LiteIDE +*.out + +# Dependency directories (remove the comment below to include it) +# vendor/ + +# Go workspace file +go.work + +settings.json \ No newline at end of file diff --git a/.golangci.yml b/.golangci.yml new file mode 100644 index 0000000..7a982dc --- /dev/null +++ b/.golangci.yml @@ -0,0 +1,102 @@ +# options for analysis running +run: + # timeout for analysis, e.g. 30s, 5m, default is 1m + timeout: 1m + + # exit code when at least one issue was found, default is 1 + issues-exit-code: 0 + + # include test files or not, default is true + tests: false + + # which dirs to skip: issues from them won't be reported; + # can use regexp here: generated.*, regexp is applied on full path; + # default value is empty list, but default dirs are skipped independently + # from this option's value (see skip-dirs-use-default). + # "/" will be replaced by current OS file path separator to properly work + # on Windows. + skip-dirs: + - wasm + - static + - node_modules + - documents + - docker + - bind-* + + # default is true. Enables skipping of directories: + # vendor$, third_party$, testdata$, examples$, Godeps$, builtin$ + skip-dirs-use-default: true + + # by default isn't set. If set we pass it to "go list -mod={option}". From "go help modules": + # If invoked with -mod=readonly, the go command is disallowed from the implicit + # automatic updating of go.mod described above. Instead, it fails when any changes + # to go.mod are needed. This setting is most useful to check that go.mod does + # not need updates, such as in a continuous integration and testing system. + # If invoked with -mod=vendor, the go command assumes that the vendor + # directory holds the correct copies of dependencies and ignores + # the dependency descriptions in go.mod. + modules-download-mode: mod + + # Allow multiple parallel golangci-lint instances running. + # If false (default) - golangci-lint acquires file lock on start. + allow-parallel-runners: true + + +# output configuration options +output: + # colored-line-number|line-number|json|tab|checkstyle|code-climate|junit-xml|github-actions + # default is "colored-line-number" + format: colored-line-number + + # print lines of code with issue, default is true + print-issued-lines: true + + # print linter name in the end of issue text, default is true + print-linter-name: true + + # make issues output unique by line, default is true + uniq-by-line: true + + # add a prefix to the output file references; default is no prefix + path-prefix: "" + + # sorts results by: filepath, line and column + sort-results: false + + +# all available settings of specific linters +linters-settings: + gofmt: + # simplify code: gofmt with `-s` option, true by default + simplify: true + staticcheck: + # Select the Go version to target. The default is '1.13'. + go: "1.19" + # https://staticcheck.io/docs/options#checks + checks: ["all"] + stylecheck: + # Select the Go version to target. The default is '1.13'. + go: "1.19" + # https://staticcheck.io/docs/options#checks + checks: ["all"] + errcheck: + # report about assignment of errors to blank identifier: `num, _ := strconv.Atoi(numStr)`; + # default is false: such cases aren't reported by default. + check-blank: true + +linters: + enable: + # go install github.com/kisielk/errcheck@latest + # go install github.com/gordonklaus/ineffassign@latest + # go install honnef.co/go/tools/cmd/staticcheck@latest + # go install gitlab.com/opennota/check/cmd/varcheck@latest + # go install github.com/go-critic/go-critic/cmd/gocritic@latest + - errcheck + - staticcheck + - stylecheck + - ineffassign + - varcheck + - gofmt + - gocritic + - wsl + fast: false diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 0000000..4e7eb3d --- /dev/null +++ b/Dockerfile @@ -0,0 +1,18 @@ +FROM golang:1.19-bullseye +LABEL author="Thomas Bellembois" + +# Copying sources. +WORKDIR /go/src/codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner/v2/ +COPY . . + +# Installing. +RUN go install -v ./... +RUN chmod +x /go/bin/codefirst-dockerrunner + +# Copying entrypoint. +COPY entrypoint.sh / +RUN chmod +x /entrypoint.sh + +USER root +EXPOSE 8081 +ENTRYPOINT [ "/entrypoint.sh" ] \ No newline at end of file diff --git a/api/config.go b/api/config.go new file mode 100644 index 0000000..9762e97 --- /dev/null +++ b/api/config.go @@ -0,0 +1,22 @@ +package api + +import ( + "context" + + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2/callbacks" + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2/messages" + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2/models" + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner/v2/globals" + "nhooyr.io/websocket" + "nhooyr.io/websocket/wsjson" +) + +func GetConfig(wsCtx context.Context, wsConnection *websocket.Conn) { + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{ + Action: callbacks.AfterGetConfigCallback, + Config: models.CodefirstConfig{ + MaxAllowedContainers: globals.MaxAllowedContainers, + }, + }, + ) +} diff --git a/api/container.go b/api/container.go new file mode 100644 index 0000000..2dfcaaf --- /dev/null +++ b/api/container.go @@ -0,0 +1,336 @@ +package api + +import ( + "bufio" + "bytes" + "context" + "fmt" + "io" + "io/ioutil" + "os" + "strconv" + + "github.com/docker/docker/api/types" + "github.com/docker/docker/api/types/container" + "github.com/docker/docker/api/types/filters" + "github.com/docker/docker/api/types/network" + "nhooyr.io/websocket" + "nhooyr.io/websocket/wsjson" + + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2/callbacks" + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2/errors" + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2/messages" + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2/models" + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner/v2/globals" +) + +func getContainers(filter map[string]string) (containers []types.Container, err error) { + dockerCtx := context.Background() + + f := filters.NewArgs() + + for k, v := range filter { + f.Add(k, v) + } + + if containers, err = globals.DockerClient.ContainerList(dockerCtx, types.ContainerListOptions{All: true, Filters: f}); err != nil { + return + } + + return +} + +func GetContainerLog(wsCtx context.Context, wsConnection *websocket.Conn, codeFirstContainer models.CodeFirstContainer) { + dockerCtx := context.Background() + + options := types.ContainerLogsOptions{ShowStdout: true, ShowStderr: true} + + var ( + err error + out io.ReadCloser + ) + + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.BeforeGetContainerLogCallback}) + + if out, err = globals.DockerClient.ContainerLogs(dockerCtx, codeFirstContainer.ID, options); err != nil { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.GetContainerLog, SourceErrorMessage: err.Error()}) + return + } + + wsmessageResult := messages.WSMessage{Action: callbacks.AfterGetContainerLogCallback, Container: codeFirstContainer} + + var ( + s string + b bytes.Buffer + ) + + if _, err = io.Copy(bufio.NewWriter(&b), out); err != nil { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.GetContainerLog, SourceErrorMessage: err.Error()}) + return + } + + // FIXME: improve me + // 32768 is the default max size for wsjson.Read + // Remove some byte for the other messages.WSMessage fields. + resultSize := 32768 / 2 + + if len(s) > resultSize { + wsmessageResult.Message = b.String()[len(s)-(32768/2):] + } else { + wsmessageResult.Message = b.String() + } + + wsjson.Write(wsCtx, wsConnection, wsmessageResult) +} + +func GetContainers(wsCtx context.Context, wsConnection *websocket.Conn, codeFirstContainer models.CodeFirstContainer, user string) { + var ( + err error + containers []types.Container + codefirstContainers []models.CodeFirstContainer + ) + + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.BeforeGetContainersCallback}) + + if containers, err = getContainers(map[string]string{"label": "codefirst-user=" + user}); err != nil { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.GetContainers, SourceErrorMessage: err.Error()}) + return + } + + for i := range containers { + c := containers[i] + + var private bool + if c.Labels["traefik.enable"] == "false" { + private = true + } + + codefirstContainers = append(codefirstContainers, models.CodeFirstContainer{ + ID: c.ID, + Name: c.Names[0], + ImageURL: c.Image, + EndpointURL: fmt.Sprintf("%s://%s/%s%s", globals.Scheme, globals.HostName, globals.DockerPathPrefix, c.Names[0]), + Private: private, + }) + } + + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.AfterGetContainersCallback, Containers: codefirstContainers}) +} + +// TODO: check owner +func RemoveContainer(wsCtx context.Context, wsConnection *websocket.Conn, codeFirstContainer models.CodeFirstContainer, user string) { + dockerCtx := context.Background() + + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.BeforeStopContainerCallback, Container: codeFirstContainer}) + + if err := globals.DockerClient.ContainerStop(dockerCtx, codeFirstContainer.ID, nil); err != nil { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.StopContainer, SourceErrorMessage: err.Error()}) + return + } + + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.AfterStopContainerCallback, Container: codeFirstContainer}) + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.BeforeRemoveContainerCallback, Container: codeFirstContainer}) + + if err := globals.DockerClient.ContainerRemove(dockerCtx, codeFirstContainer.ID, types.ContainerRemoveOptions{ + RemoveVolumes: true, + Force: true, + }); err != nil { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.RemoveContainer, SourceErrorMessage: err.Error()}) + return + } + + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.AfterRemoveContainerCallback, Container: codeFirstContainer}) +} + +// TODO: check owner +func ExecContainer(wsCtx context.Context, wsConnection *websocket.Conn, codeFirstContainer models.CodeFirstContainer, exec types.ExecConfig, user string) { + dockerCtx := context.Background() + + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.BeforeExecContainerCallback, Container: codeFirstContainer}) + + var ( + containers []types.Container + err error + ) + + if containers, err = getContainers(map[string]string{"label": "codefirst-name=" + codeFirstContainer.Name}); err != nil { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.ExecContainer, SourceErrorMessage: err.Error()}) + return + } + + if len(containers) != 1 { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.NonExistingContainer}) + return + } + + codeFirstContainer.ID = containers[0].ID + exec.AttachStderr = true + exec.AttachStdout = true + + var ( + responseID types.IDResponse + response types.HijackedResponse + ) + + for i := range exec.Cmd { + fmt.Printf("cmd %d: %s\n", i, exec.Cmd[i]) + } + + if responseID, err = globals.DockerClient.ContainerExecCreate(dockerCtx, codeFirstContainer.ID, exec); err != nil { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.ExecContainer, SourceErrorMessage: err.Error()}) + return + } + + if response, err = globals.DockerClient.ContainerExecAttach(context.Background(), responseID.ID, types.ExecStartCheck{}); err != nil { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.ExecContainer, SourceErrorMessage: err.Error()}) + return + } + defer response.Close() + + var data []byte + + if data, err = ioutil.ReadAll(response.Reader); err != nil { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.ExecContainer, SourceErrorMessage: err.Error()}) + return + } + + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.AfterExecContainerCallback, Container: codeFirstContainer, Message: string(data)}) +} + +func StartContainer(wsCtx context.Context, wsConnection *websocket.Conn, codeFirstContainer models.CodeFirstContainer, user string) { + dockerCtx := context.Background() + + var ( + err error + containers []types.Container + ) + + // Get number of containers for user. + if containers, err = getContainers(map[string]string{"label": "codefirst-user=" + user}); err != nil { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.GetContainers, SourceErrorMessage: err.Error()}) + return + } + + if len(containers) >= globals.MaxAllowedContainers { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.MaxContainersReached}) + return + } + + // Validate container. + if codeFirstContainer.ImageURL == "" { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.ImageURLValidation}) + return + } + + if codeFirstContainer.Name == "" { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.ImageNameValidation}) + return + } + + // Rename container - prepend the logged user. + codeFirstContainer.Name = fmt.Sprintf("%s-%s", user, codeFirstContainer.Name) + + // Check if container with same name already exist. + var ( + conts []types.Container + ) + + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.BeforeGetContainerWithSameNameCallback, Container: codeFirstContainer}) + + if conts, err = getContainers(map[string]string{"label": "codefirst-name=" + codeFirstContainer.Name}); err != nil { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.GetContainers, SourceErrorMessage: err.Error()}) + return + } + + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.AfterGetContainerWithSameNameCallback, Container: codeFirstContainer}) + + // Removing it. + if len(conts) > 0 && conts[0].ID != "" { + if codeFirstContainer.Overwrite { + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.Log, Message: (fmt.Sprintf("Removing existing container: %s", conts[0].ID))}) + RemoveContainer(wsCtx, wsConnection, models.CodeFirstContainer{ID: conts[0].ID}, user) + } else { + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.AfterStartContainerCallback, Message: fmt.Sprintf("Can not overwrite existing container: %s", conts[0].ID)}) + return + } + } + + // Pull the Docker image. + var ( + reader io.ReadCloser + ) + + imagePullOptions := types.ImagePullOptions{ + RegistryAuth: codeFirstContainer.Base64Credentials, + } + + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.BeforePullImageCallback, Container: codeFirstContainer}) + + if reader, err = globals.DockerClient.ImagePull(dockerCtx, codeFirstContainer.ImageURL, imagePullOptions); err != nil { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.DockerPull, SourceErrorMessage: err.Error()}) + return + } + + if _, err = io.Copy(os.Stdout, reader); err != nil { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.Server, SourceErrorMessage: err.Error()}) + return + } + + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.AfterPullImageCallback, Container: codeFirstContainer}) + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.BeforeCreateContainerCallback, Container: codeFirstContainer}) + + var traefikEnable bool + if !codeFirstContainer.Private { + traefikEnable = true + } + + // Configure the container. + containerLabels := map[string]string{ + "codefirst-user": user, + "codefirst-name": codeFirstContainer.Name, + "codefirst-usercontainer": "true", + "traefik.enable": strconv.FormatBool(traefikEnable), + fmt.Sprintf("traefik.http.routers.%s.rule", codeFirstContainer.Name): fmt.Sprintf("Host(`%s`) && PathPrefix(`/%s/%s`)", globals.HostName, globals.DockerPathPrefix, codeFirstContainer.Name), + fmt.Sprintf("traefik.http.routers.%s.entrypoints", codeFirstContainer.Name): "websecure", + fmt.Sprintf("traefik.http.routers.%s.tls.certresolver", codeFirstContainer.Name): "letsEncrypt", + fmt.Sprintf("traefik.http.middlewares.strip-%s.stripprefix.prefixes", codeFirstContainer.Name): fmt.Sprintf("/%s/%s", globals.DockerPathPrefix, codeFirstContainer.Name), + fmt.Sprintf("traefik.http.routers.%s.middlewares", codeFirstContainer.Name): fmt.Sprintf("strip-%s@docker", codeFirstContainer.Name), + "traefik.docker.network": globals.DockerNetworkName, + } + containerConfig := &container.Config{ + Image: codeFirstContainer.ImageURL, + Labels: containerLabels, + Env: codeFirstContainer.Env, + } + hostConfig := &container.HostConfig{ + NetworkMode: container.NetworkMode(globals.DockerNetworkName), + } + networkingConfig := &network.NetworkingConfig{} + + // Create the container. + var containerCreateResponse container.ContainerCreateCreatedBody + + if containerCreateResponse, err = globals.DockerClient.ContainerCreate( + dockerCtx, + containerConfig, + hostConfig, + networkingConfig, + nil, + codeFirstContainer.Name); err != nil { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.CreateContainer, SourceErrorMessage: err.Error()}) + return + } + + codeFirstContainer.ID = containerCreateResponse.ID + + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.AfterCreateContainerCallback, Container: codeFirstContainer}) + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.BeforeStartContainerCallback, Container: codeFirstContainer}) + + // Start the container. + if err := globals.DockerClient.ContainerStart(dockerCtx, containerCreateResponse.ID, types.ContainerStartOptions{}); err != nil { + sendError(wsCtx, wsConnection, errors.AppError{Type: errors.StartContainer, SourceErrorMessage: err.Error()}) + return + } + + wsjson.Write(wsCtx, wsConnection, messages.WSMessage{Action: callbacks.AfterStartContainerCallback, Message: containerCreateResponse.ID}) +} diff --git a/api/error.go b/api/error.go new file mode 100644 index 0000000..e21970a --- /dev/null +++ b/api/error.go @@ -0,0 +1,16 @@ +package api + +import ( + "context" + "fmt" + + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2/errors" + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2/messages" + "nhooyr.io/websocket" + "nhooyr.io/websocket/wsjson" +) + +func sendError(ctx context.Context, wsConnection *websocket.Conn, err errors.AppError) { + fmt.Println(err) + wsjson.Write(ctx, wsConnection, messages.WSMessage{Error: &err}) +} diff --git a/api/test.go b/api/test.go new file mode 100644 index 0000000..b509534 --- /dev/null +++ b/api/test.go @@ -0,0 +1,50 @@ +package api + +import ( + "context" + "fmt" + "time" + + "nhooyr.io/websocket" + "nhooyr.io/websocket/wsjson" + + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2/callbacks" + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2/errors" + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2/messages" + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2/models" +) + +func Pong(ctx context.Context, wsConnection *websocket.Conn) { + message := messages.WSMessage{ + Action: callbacks.AfterPingCallback, + } + + err := wsjson.Write(ctx, wsConnection, message) + if err != nil { + fmt.Println(err) + } +} + +func Test(ctx context.Context, wsConnection *websocket.Conn, codeFirstContainer models.CodeFirstContainer) { + counter := 0 + + for counter < 5 { + message := messages.WSMessage{ + Action: callbacks.AfterTestCallback, + Message: "hello from server", + } + + err := wsjson.Write(ctx, wsConnection, message) + if err != nil { + fmt.Println(err) + } + + counter++ + + time.Sleep(2 * time.Second) + } +} + +func TestError(ctx context.Context, wsConnection *websocket.Conn, codeFirstContainer models.CodeFirstContainer) { + sendError(ctx, wsConnection, errors.AppError{Type: errors.CreateContainer, SourceErrorMessage: "test error"}) +} diff --git a/entrypoint.sh b/entrypoint.sh new file mode 100644 index 0000000..e1b1c08 --- /dev/null +++ b/entrypoint.sh @@ -0,0 +1,46 @@ +#!/usr/bin/env bash + +HostName="" +DockerNetworkName="" +DockerPathPrefix="" +Scheme="" +MaxAllowedContainers="" +Test="" + +if [ ! -z "$TEST" ] +then + Test="-test" +fi + +if [ ! -z "$HOSTNAME" ] +then + HostName="-hostname $HOSTNAME" +fi + +if [ ! -z "$SCHEME" ] +then + Scheme="-scheme $SCHEME" +fi + +if [ ! -z "$DOCKERNETWORKNAME" ] +then + DockerNetworkName="-dockernetworkname $DOCKERNETWORKNAME" +fi + +if [ ! -z "$DOCKERPATHPREFIX" ] +then + DockerPathPrefix="-dockerpathprefix $DOCKERPATHPREFIX" +fi + +if [ ! -z "$MAXALLOWEDCONTAINERS" ] +then + MaxAllowedContainers="-maxallowedcontainers $MAXALLOWEDCONTAINERS" +fi + +echo $HostName +echo $DockerNetworkName +echo $DockerPathPrefix +echo $MaxAllowedContainers +echo $Test + +/go/bin/codefirst-dockerrunner $Scheme $HostName $DockerNetworkName $DockerPathPrefix $MaxAllowedContainers $Test \ No newline at end of file diff --git a/errors/http.go b/errors/http.go new file mode 100644 index 0000000..f4a5f59 --- /dev/null +++ b/errors/http.go @@ -0,0 +1,18 @@ +package errors + +import ( + "fmt" + "net/http" +) + +func InternalServerError(w http.ResponseWriter, r *http.Request, err error) { + fmt.Println(err) + w.WriteHeader(http.StatusInternalServerError) + w.Write([]byte(err.Error())) +} + +func BadRequestError(w http.ResponseWriter, r *http.Request, err error) { + fmt.Println(err) + w.WriteHeader(http.StatusBadRequest) + w.Write([]byte(err.Error())) +} diff --git a/globals/globals.go b/globals/globals.go new file mode 100644 index 0000000..8b993f4 --- /dev/null +++ b/globals/globals.go @@ -0,0 +1,28 @@ +package globals + +import ( + "github.com/gorilla/schema" + + "github.com/docker/docker/client" +) + +var ( + HostName string + Scheme string + DockerNetworkName string + DockerPathPrefix string + MaxAllowedContainers int + Test bool + + DockerClient *client.Client + SchemaDecoder *schema.Decoder +) + +func init() { + var err error + if DockerClient, err = client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation()); err != nil { + panic(err) + } + + SchemaDecoder = schema.NewDecoder() +} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..ab67fc6 --- /dev/null +++ b/go.mod @@ -0,0 +1,38 @@ +module codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner/v2 + +go 1.19 + +require ( + codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2 v2.0.0-20220905134948-382dd0bb6a40 + github.com/docker/docker v20.10.17+incompatible + github.com/gorilla/mux v1.8.0 + github.com/gorilla/schema v1.2.0 + nhooyr.io/websocket v1.8.7 +) + +require ( + github.com/Microsoft/go-winio v0.5.2 // indirect + github.com/docker/distribution v2.8.1+incompatible // indirect + github.com/docker/go-connections v0.4.0 // indirect + github.com/docker/go-units v0.5.0 // indirect + github.com/gogo/protobuf v1.3.2 // indirect + github.com/golang/protobuf v1.5.2 // indirect + github.com/google/go-cmp v0.5.6 // indirect + github.com/json-iterator/go v1.1.12 // indirect + github.com/klauspost/compress v1.15.9 // indirect + github.com/moby/term v0.0.0-20210619224110-3f7ff695adc6 // indirect + github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect + github.com/morikuni/aec v1.0.0 // indirect + github.com/opencontainers/go-digest v1.0.0 // indirect + github.com/opencontainers/image-spec v1.0.3-0.20220512140940-7b36cea86235 // indirect + github.com/pkg/errors v0.9.1 // indirect + github.com/sirupsen/logrus v1.9.0 // indirect + golang.org/x/net v0.0.0-20220826154423-83b083e8dc8b // indirect + golang.org/x/sys v0.0.0-20220829200755-d48e67d00261 // indirect + golang.org/x/time v0.0.0-20210723032227-1f47c861a9ac // indirect + google.golang.org/protobuf v1.28.0 // indirect + gopkg.in/yaml.v2 v2.4.0 // indirect + gotest.tools/v3 v3.2.0 // indirect +) + +// replace codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2 => /home/thbellem/workspace/workspace_go/src/codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..3f8b23a --- /dev/null +++ b/go.sum @@ -0,0 +1,197 @@ +codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2 v2.0.0-20220518150401-ba5cd613b3ed h1:NjYlFI4M76YkEAFrmEH67czp+keOqP4o4aXBlZHf/hc= +codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2 v2.0.0-20220518150401-ba5cd613b3ed/go.mod h1:+WAHZHR8U1lAxbBTcIVteE0l4NOtVPBBX23g/JH5s04= +codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2 v2.0.0-20220705084406-b6439f7b5638 h1:9fsViVMoH4Q/1EzLzf/ynHmjuMXNtnBA35SqNnIo5xY= +codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2 v2.0.0-20220705084406-b6439f7b5638/go.mod h1:+WAHZHR8U1lAxbBTcIVteE0l4NOtVPBBX23g/JH5s04= +codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2 v2.0.0-20220705085106-ea5914d79d2a h1:fhSeZG8qYqFkfkidSJKPA9H6w1Q6snNtj2WAKoCvTDU= +codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2 v2.0.0-20220705085106-ea5914d79d2a/go.mod h1:V0N5z2WX2KuygdIcnIUJQhuLG4rA2I59hsTSaV8lV/0= +codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2 v2.0.0-20220705124009-2bcb3c889bd1 h1:SGkyKaOuCbvFooc3Pb3Rov4a56RBQY0cdXEiyEBVf7Q= +codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2 v2.0.0-20220705124009-2bcb3c889bd1/go.mod h1:V0N5z2WX2KuygdIcnIUJQhuLG4rA2I59hsTSaV8lV/0= +codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2 v2.0.0-20220905134948-382dd0bb6a40 h1:ou1weZVETrbacumoahqQKL/hpZeBvhqOsSWJyfrK328= +codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2 v2.0.0-20220905134948-382dd0bb6a40/go.mod h1:MSH3IGekA6C4WhkkYoVYzTkmPoERMLJHjudjaMDjSwQ= +github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 h1:UQHMgLO+TxOElx5B5HZ4hJQsoJ/PvUvKRhJHDQXO8P8= +github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E= +github.com/Microsoft/go-winio v0.5.2 h1:a9IhgEQBCUEk6QCdml9CiJGhAws+YwffDHEMp1VMrpA= +github.com/Microsoft/go-winio v0.5.2/go.mod h1:WpS1mjBmmwHBEWmogvA2mj8546UReBk4v8QkMxJ6pZY= +github.com/creack/pty v1.1.11/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E= +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= +github.com/davecgh/go-spew v1.1.1/go.mod 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v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk= +gotest.tools/v3 v3.2.0 h1:I0DwBVMGAx26dttAj1BtJLAkVGncrkkUXfJLC4Flt/I= +gotest.tools/v3 v3.2.0/go.mod h1:Mcr9QNxkg0uMvy/YElmo4SpXgJKWgQvYrT7Kw5RzJ1A= +nhooyr.io/websocket v1.8.7 h1:usjR2uOr/zjjkVMy0lW+PPohFok7PCow5sDjLgX4P4g= +nhooyr.io/websocket v1.8.7/go.mod h1:B70DZP8IakI65RVQ51MsWP/8jndNma26DVA/nFSCgW0= diff --git a/handlers/websocket.go b/handlers/websocket.go new file mode 100644 index 0000000..d09e64c --- /dev/null +++ b/handlers/websocket.go @@ -0,0 +1,82 @@ +package handlers + +import ( + "context" + "fmt" + "net/http" + "strings" + + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2/actions" + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner-common/v2/messages" + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner/v2/api" + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner/v2/errors" + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner/v2/globals" + + "nhooyr.io/websocket" + "nhooyr.io/websocket/wsjson" +) + +func WebSockerHandler(w http.ResponseWriter, r *http.Request) { + var ( + err error + wsConnection *websocket.Conn + authUser string + ) + + xForwardedUser := r.Header["X-Forwarded-User"] + if globals.Test { + xForwardedUser = []string{"thomas.bellembois@uca.fr"} + } + + if len(xForwardedUser) == 0 || xForwardedUser[0] == "" { + w.WriteHeader(http.StatusUnauthorized) + return + } + + authUser = strings.Split(xForwardedUser[0], "@")[0] + authUser = strings.ReplaceAll(authUser, ".", "") + + if wsConnection, err = websocket.Accept(w, r, nil); err != nil { + errors.InternalServerError(w, r, err) + return + } + defer wsConnection.Close(websocket.StatusInternalError, "") + + ctx := context.Background() + + for { + fmt.Println("waiting for web socket message") + + var ( + message messages.WSMessage + ) + + if err = wsjson.Read(ctx, wsConnection, &message); err != nil { + errors.InternalServerError(w, r, err) + return + } + + fmt.Printf("received: %+v\n", message) + + switch message.Action { + case actions.GetContainerLog: + api.GetContainerLog(ctx, wsConnection, message.Container) + case actions.RemoveContainer: + api.RemoveContainer(ctx, wsConnection, message.Container, authUser) + case actions.StartContainer: + api.StartContainer(ctx, wsConnection, message.Container, authUser) + case actions.ExecContainer: + api.ExecContainer(ctx, wsConnection, message.Container, message.Exec, authUser) + case actions.GetContainers: + api.GetContainers(ctx, wsConnection, message.Container, authUser) + case actions.GetConfig: + api.GetConfig(ctx, wsConnection) + case actions.Ping: + api.Pong(ctx, wsConnection) + case actions.Test: + api.Test(ctx, wsConnection, message.Container) + case actions.TestError: + api.TestError(ctx, wsConnection, message.Container) + } + } +} diff --git a/main.go b/main.go new file mode 100644 index 0000000..d02ae1e --- /dev/null +++ b/main.go @@ -0,0 +1,42 @@ +package main + +import ( + "embed" + "flag" + "net/http" + + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner/v2/globals" + "codefirst.iut.uca.fr/git/thomas.bellembois/codefirst-dockerrunner/v2/handlers" + "github.com/gorilla/mux" +) + +var ( + //go:embed wasm/* + embedWasmBox embed.FS + //go:embed static/* + embedStaticBox embed.FS +) + +func init() { + flag.StringVar(&globals.Scheme, "scheme", "http", "application scheme") + flag.StringVar(&globals.HostName, "hostname", "localhost:8081", "full hostname (ie. codefirst.uca.fr)") + flag.StringVar(&globals.DockerNetworkName, "dockernetworkname", "cicd_net", "docker network name for running containers") + flag.StringVar(&globals.DockerPathPrefix, "dockerpathprefix", "containers", "common path prefix for running containers") + flag.IntVar(&globals.MaxAllowedContainers, "maxallowedcontainers", 1, "maximum allowed running containers per user") + flag.BoolVar(&globals.Test, "test", false, "developper flag") + + flag.Parse() +} + +func main() { + router := mux.NewRouter() + + http.Handle("/wasm/", http.FileServer(http.FS(embedWasmBox))) + http.Handle("/static/", http.FileServer(http.FS(embedStaticBox))) + http.HandleFunc("/ws/", handlers.WebSockerHandler) + http.Handle("/", router) + + if err := http.ListenAndServe(":8081", nil); err != nil { + panic("error running the server:" + err.Error()) + } +} diff --git a/static/html/index.html b/static/html/index.html new file mode 100644 index 0000000..dae4e7e --- /dev/null +++ b/static/html/index.html @@ -0,0 +1,36 @@ + + + + + + + + codefirst-dockerunner-ui + + + + + + +
Loading WASM module...
+ + \ No newline at end of file diff --git a/static/js/pako.min.js b/static/js/pako.min.js new file mode 100644 index 0000000..5f0fee1 --- /dev/null +++ b/static/js/pako.min.js @@ -0,0 +1,2 @@ +/*! pako 2.0.4 https://github.com/nodeca/pako @license (MIT AND Zlib) */ +!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?e(exports):"function"==typeof define&&define.amd?define(["exports"],e):e((t="undefined"!=typeof globalThis?globalThis:t||self).pako={})}(this,(function(t){"use strict";function e(t){let e=t.length;for(;--e>=0;)t[e]=0}const a=256,i=286,n=30,s=15,r=new Uint8Array([0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0]),l=new Uint8Array([0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13]),o=new Uint8Array([0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7]),h=new Uint8Array([16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15]),d=new Array(576);e(d);const _=new Array(60);e(_);const f=new Array(512);e(f);const c=new Array(256);e(c);const u=new 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d,_,f,c,u,w,b=0;for(c=0;c<=s;c++)t.bl_count[c]=0;for(a[2*t.heap[t.heap_max]+1]=0,d=t.heap_max+1;d<573;d++)_=t.heap[d],c=a[2*a[2*_+1]+1]+1,c>h&&(c=h,b++),a[2*_+1]=c,_>i||(t.bl_count[c]++,u=0,_>=o&&(u=l[_-o]),w=a[2*_],t.opt_len+=w*(c+u),r&&(t.static_len+=w*(n[2*_+1]+u)));if(0!==b){do{for(c=h-1;0===t.bl_count[c];)c--;t.bl_count[c]--,t.bl_count[c+1]+=2,t.bl_count[h]--,b-=2}while(b>0);for(c=h;0!==c;c--)for(_=t.bl_count[c];0!==_;)f=t.heap[--d],f>i||(a[2*f+1]!==c&&(t.opt_len+=(c-a[2*f+1])*a[2*f],a[2*f+1]=c),_--)}})(t,e),E(a,d,t.bl_count)},O=(t,e,a)=>{let i,n,s=-1,r=e[1],l=0,o=7,h=4;for(0===r&&(o=138,h=3),e[2*(a+1)+1]=65535,i=0;i<=a;i++)n=r,r=e[2*(i+1)+1],++l{let i,n,s=-1,r=e[1],l=0,o=7,h=4;for(0===r&&(o=138,h=3),i=0;i<=a;i++)if(n=r,r=e[2*(i+1)+1],!(++l{x(t,0+(i?1:0),3),((t,e,a,i)=>{Z(t),i&&(y(t,a),y(t,~a)),t.pending_buf.set(t.window.subarray(e,e+a),t.pending),t.pending+=a})(t,e,a,!0)};var N={_tr_init:t=>{F||((()=>{let t,e,a,h,k;const v=new Array(16);for(a=0,h=0;h<28;h++)for(u[h]=a,t=0;t<1<>=7;h{let s,r,l=0;t.level>0?(2===t.strm.data_type&&(t.strm.data_type=(t=>{let e,i=4093624447;for(e=0;e<=31;e++,i>>>=1)if(1&i&&0!==t.dyn_ltree[2*e])return 0;if(0!==t.dyn_ltree[18]||0!==t.dyn_ltree[20]||0!==t.dyn_ltree[26])return 1;for(e=32;e{let e;for(O(t,t.dyn_ltree,t.l_desc.max_code),O(t,t.dyn_dtree,t.d_desc.max_code),T(t,t.bl_desc),e=18;e>=3&&0===t.bl_tree[2*h[e]+1];e--);return t.opt_len+=3*(e+1)+5+5+4,e})(t),s=t.opt_len+3+7>>>3,r=t.static_len+3+7>>>3,r<=s&&(s=r)):s=r=i+5,i+4<=s&&-1!==e?L(t,e,i,n):4===t.strategy||r===s?(x(t,2+(n?1:0),3),D(t,d,_)):(x(t,4+(n?1:0),3),((t,e,a,i)=>{let n;for(x(t,e-257,5),x(t,a-1,5),x(t,i-4,4),n=0;n(t.pending_buf[t.d_buf+2*t.last_lit]=e>>>8&255,t.pending_buf[t.d_buf+2*t.last_lit+1]=255&e,t.pending_buf[t.l_buf+t.last_lit]=255&i,t.last_lit++,0===e?t.dyn_ltree[2*i]++:(t.matches++,e--,t.dyn_ltree[2*(c[i]+a+1)]++,t.dyn_dtree[2*v(e)]++),t.last_lit===t.lit_bufsize-1),_tr_align:t=>{x(t,2,3),z(t,256,d),(t=>{16===t.bi_valid?(y(t,t.bi_buf),t.bi_buf=0,t.bi_valid=0):t.bi_valid>=8&&(t.pending_buf[t.pending++]=255&t.bi_buf,t.bi_buf>>=8,t.bi_valid-=8)})(t)}};var B=(t,e,a,i)=>{let n=65535&t|0,s=t>>>16&65535|0,r=0;for(;0!==a;){r=a>2e3?2e3:a,a-=r;do{n=n+e[i++]|0,s=s+n|0}while(--r);n%=65521,s%=65521}return n|s<<16|0};const C=new Uint32Array((()=>{let t,e=[];for(var a=0;a<256;a++){t=a;for(var i=0;i<8;i++)t=1&t?3988292384^t>>>1:t>>>1;e[a]=t}return e})());var M=(t,e,a,i)=>{const n=C,s=i+a;t^=-1;for(let a=i;a>>8^n[255&(t^e[a])];return-1^t},H={2:"need dictionary",1:"stream end",0:"","-1":"file error","-2":"stream error","-3":"data error","-4":"insufficient 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a=e.pending;a>t.avail_out&&(a=t.avail_out),0!==a&&(t.output.set(e.pending_buf.subarray(e.pending_out,e.pending_out+a),t.next_out),t.next_out+=a,e.pending_out+=a,t.total_out+=a,t.avail_out-=a,e.pending-=a,0===e.pending&&(e.pending_out=0))},yt=(t,e)=>{Y(t,t.block_start>=0?t.block_start:-1,t.strstart-t.block_start,e),t.block_start=t.strstart,vt(t.strm)},xt=(t,e)=>{t.pending_buf[t.pending++]=e},zt=(t,e)=>{t.pending_buf[t.pending++]=e>>>8&255,t.pending_buf[t.pending++]=255&e},At=(t,e,a,i)=>{let n=t.avail_in;return n>i&&(n=i),0===n?0:(t.avail_in-=n,e.set(t.input.subarray(t.next_in,t.next_in+n),a),1===t.state.wrap?t.adler=B(t.adler,e,n,a):2===t.state.wrap&&(t.adler=M(t.adler,e,n,a)),t.next_in+=n,t.total_in+=n,n)},Et=(t,e)=>{let a,i,n=t.max_chain_length,s=t.strstart,r=t.prev_length,l=t.nice_match;const o=t.strstart>t.w_size-ct?t.strstart-(t.w_size-ct):0,h=t.window,d=t.w_mask,_=t.prev,f=t.strstart+ft;let 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a,i,n;for(;;){if(t.lookahead=3&&(t.ins_h=kt(t,t.ins_h,t.window[t.strstart+3-1]),a=t.prev[t.strstart&t.w_mask]=t.head[t.ins_h],t.head[t.ins_h]=t.strstart),t.prev_length=t.match_length,t.prev_match=t.match_start,t.match_length=2,0!==a&&t.prev_length4096)&&(t.match_length=2)),t.prev_length>=3&&t.match_length<=t.prev_length){n=t.strstart+t.lookahead-3,i=G(t,t.strstart-1-t.prev_match,t.prev_length-3),t.lookahead-=t.prev_length-1,t.prev_length-=2;do{++t.strstart<=n&&(t.ins_h=kt(t,t.ins_h,t.window[t.strstart+3-1]),a=t.prev[t.strstart&t.w_mask]=t.head[t.ins_h],t.head[t.ins_h]=t.strstart)}while(0!=--t.prev_length);if(t.match_available=0,t.match_length=2,t.strstart++,i&&(yt(t,!1),0===t.strm.avail_out))return 1}else if(t.match_available){if(i=G(t,0,t.window[t.strstart-1]),i&&yt(t,!1),t.strstart++,t.lookahead--,0===t.strm.avail_out)return 1}else t.match_available=1,t.strstart++,t.lookahead--}return t.match_available&&(i=G(t,0,t.window[t.strstart-1]),t.match_available=0),t.insert=t.strstart<2?t.strstart:2,e===Q?(yt(t,!0),0===t.strm.avail_out?3:4):t.last_lit&&(yt(t,!1),0===t.strm.avail_out)?1:2};function St(t,e,a,i,n){this.good_length=t,this.max_lazy=e,this.nice_length=a,this.max_chain=i,this.func=n}const Dt=[new St(0,0,0,0,((t,e)=>{let a=65535;for(a>t.pending_buf_size-5&&(a=t.pending_buf_size-5);;){if(t.lookahead<=1){if(Rt(t),0===t.lookahead&&e===W)return 1;if(0===t.lookahead)break}t.strstart+=t.lookahead,t.lookahead=0;const i=t.block_start+a;if((0===t.strstart||t.strstart>=i)&&(t.lookahead=t.strstart-i,t.strstart=i,yt(t,!1),0===t.strm.avail_out))return 1;if(t.strstart-t.block_start>=t.w_size-ct&&(yt(t,!1),0===t.strm.avail_out))return 1}return t.insert=0,e===Q?(yt(t,!0),0===t.strm.avail_out?3:4):(t.strstart>t.block_start&&(yt(t,!1),t.strm.avail_out),1)})),new St(4,4,8,4,Zt),new St(4,5,16,8,Zt),new St(4,6,32,32,Zt),new St(4,4,16,16,Ut),new St(8,16,32,32,Ut),new St(8,16,128,128,Ut),new St(8,32,128,256,Ut),new St(32,128,258,1024,Ut),new St(32,258,258,4096,Ut)];function Tt(){this.strm=null,this.status=0,this.pending_buf=null,this.pending_buf_size=0,this.pending_out=0,this.pending=0,this.wrap=0,this.gzhead=null,this.gzindex=0,this.method=_t,this.last_flush=-1,this.w_size=0,this.w_bits=0,this.w_mask=0,this.window=null,this.window_size=0,this.prev=null,this.head=null,this.ins_h=0,this.hash_size=0,this.hash_bits=0,this.hash_mask=0,this.hash_shift=0,this.block_start=0,this.match_length=0,this.prev_match=0,this.match_available=0,this.strstart=0,this.match_start=0,this.lookahead=0,this.prev_length=0,this.max_chain_length=0,this.max_lazy_match=0,this.level=0,this.strategy=0,this.good_match=0,this.nice_match=0,this.dyn_ltree=new Uint16Array(1146),this.dyn_dtree=new Uint16Array(122),this.bl_tree=new Uint16Array(78),mt(this.dyn_ltree),mt(this.dyn_dtree),mt(this.bl_tree),this.l_desc=null,this.d_desc=null,this.bl_desc=null,this.bl_count=new 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pe;a=t.state,a.mode===xe&&(a.mode=13),r=t.next_out,n=t.output,o=t.avail_out,s=t.next_in,i=t.input,l=t.avail_in,h=a.hold,d=a.bits,_=l,f=o,x=we;t:for(;;)switch(a.mode){case 1:if(0===a.wrap){a.mode=13;break}for(;d<16;){if(0===l)break t;l--,h+=i[s++]<>>8&255,a.check=M(a.check,A,2,0),h=0,d=0,a.mode=2;break}if(a.flags=0,a.head&&(a.head.done=!1),!(1&a.wrap)||(((255&h)<<8)+(h>>8))%31){t.msg="incorrect header check",a.mode=ze;break}if((15&h)!==ye){t.msg="unknown compression method",a.mode=ze;break}if(h>>>=4,d-=4,y=8+(15&h),0===a.wbits)a.wbits=y;else if(y>a.wbits){t.msg="invalid window size",a.mode=ze;break}a.dmax=1<>8&1),512&a.flags&&(A[0]=255&h,A[1]=h>>>8&255,a.check=M(a.check,A,2,0)),h=0,d=0,a.mode=3;case 3:for(;d<32;){if(0===l)break t;l--,h+=i[s++]<>>8&255,A[2]=h>>>16&255,A[3]=h>>>24&255,a.check=M(a.check,A,4,0)),h=0,d=0,a.mode=4;case 4:for(;d<16;){if(0===l)break t;l--,h+=i[s++]<>8),512&a.flags&&(A[0]=255&h,A[1]=h>>>8&255,a.check=M(a.check,A,2,0)),h=0,d=0,a.mode=5;case 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21:if(l>=6&&o>=258){t.next_out=r,t.avail_out=o,t.next_in=s,t.avail_in=l,a.hold=h,a.bits=d,se(t,f),r=t.next_out,n=t.output,o=t.avail_out,s=t.next_in,i=t.input,l=t.avail_in,h=a.hold,d=a.bits,a.mode===xe&&(a.back=-1);break}for(a.back=0;z=a.lencode[h&(1<>>24,g=z>>>16&255,p=65535&z,!(b<=d);){if(0===l)break t;l--,h+=i[s++]<>m)],b=z>>>24,g=z>>>16&255,p=65535&z,!(m+b<=d);){if(0===l)break t;l--,h+=i[s++]<>>=m,d-=m,a.back+=m}if(h>>>=b,d-=b,a.back+=b,a.length=p,0===g){a.mode=26;break}if(32&g){a.back=-1,a.mode=xe;break}if(64&g){t.msg="invalid literal/length code",a.mode=ze;break}a.extra=15&g,a.mode=22;case 22:if(a.extra){for(R=a.extra;d>>=a.extra,d-=a.extra,a.back+=a.extra}a.was=a.length,a.mode=23;case 23:for(;z=a.distcode[h&(1<>>24,g=z>>>16&255,p=65535&z,!(b<=d);){if(0===l)break t;l--,h+=i[s++]<>m)],b=z>>>24,g=z>>>16&255,p=65535&z,!(m+b<=d);){if(0===l)break t;l--,h+=i[s++]<>>=m,d-=m,a.back+=m}if(h>>>=b,d-=b,a.back+=b,64&g){t.msg="invalid distance 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t&&t.state?(i=t.state,0!==i.wrap&&11!==i.mode?pe:11===i.mode&&(n=1,n=B(n,e,a,0),n!==i.check)?me:(s=Fe(t,e,a,a),s?(i.mode=31,ke):(i.havedict=1,we))):pe},inflateInfo:"pako inflate (from Nodeca project)"};var Ne=function(){this.text=0,this.time=0,this.xflags=0,this.os=0,this.extra=null,this.extra_len=0,this.name="",this.comment="",this.hcrc=0,this.done=!1};const Be=Object.prototype.toString,{Z_NO_FLUSH:Ce,Z_FINISH:Me,Z_OK:He,Z_STREAM_END:je,Z_NEED_DICT:Ke,Z_STREAM_ERROR:Pe,Z_DATA_ERROR:Ye,Z_MEM_ERROR:Ge}=j;function Xe(t){this.options=Bt({chunkSize:65536,windowBits:15,to:""},t||{});const e=this.options;e.raw&&e.windowBits>=0&&e.windowBits<16&&(e.windowBits=-e.windowBits,0===e.windowBits&&(e.windowBits=-15)),!(e.windowBits>=0&&e.windowBits<16)||t&&t.windowBits||(e.windowBits+=32),e.windowBits>15&&e.windowBits<48&&0==(15&e.windowBits)&&(e.windowBits|=15),this.err=0,this.msg="",this.ended=!1,this.chunks=[],this.strm=new Yt,this.strm.avail_out=0;let a=Le.inflateInit2(this.strm,e.windowBits);if(a!==He)throw new Error(H[a]);if(this.header=new Ne,Le.inflateGetHeader(this.strm,this.header),e.dictionary&&("string"==typeof e.dictionary?e.dictionary=jt(e.dictionary):"[object ArrayBuffer]"===Be.call(e.dictionary)&&(e.dictionary=new Uint8Array(e.dictionary)),e.raw&&(a=Le.inflateSetDictionary(this.strm,e.dictionary),a!==He)))throw new Error(H[a])}function We(t,e){const a=new Xe(e);if(a.push(t),a.err)throw a.msg||H[a.err];return a.result}Xe.prototype.push=function(t,e){const a=this.strm,i=this.options.chunkSize,n=this.options.dictionary;let s,r,l;if(this.ended)return!1;for(r=e===~~e?e:!0===e?Me:Ce,"[object ArrayBuffer]"===Be.call(t)?a.input=new Uint8Array(t):a.input=t,a.next_in=0,a.avail_in=a.input.length;;){for(0===a.avail_out&&(a.output=new Uint8Array(i),a.next_out=0,a.avail_out=i),s=Le.inflate(a,r),s===Ke&&n&&(s=Le.inflateSetDictionary(a,n),s===He?s=Le.inflate(a,r):s===Ye&&(s=Ke));a.avail_in>0&&s===je&&a.state.wrap>0&&0!==t[a.next_in];)Le.inflateReset(a),s=Le.inflate(a,r);switch(s){case Pe:case Ye:case Ke:case Ge:return this.onEnd(s),this.ended=!0,!1}if(l=a.avail_out,a.next_out&&(0===a.avail_out||s===je))if("string"===this.options.to){let t=Pt(a.output,a.next_out),e=a.next_out-t,n=Kt(a.output,t);a.next_out=e,a.avail_out=i-e,e&&a.output.set(a.output.subarray(t,t+e),0),this.onData(n)}else this.onData(a.output.length===a.next_out?a.output:a.output.subarray(0,a.next_out));if(s!==He||0!==l){if(s===je)return s=Le.inflateEnd(this.strm),this.onEnd(s),this.ended=!0,!0;if(0===a.avail_in)break}}return!0},Xe.prototype.onData=function(t){this.chunks.push(t)},Xe.prototype.onEnd=function(t){t===He&&("string"===this.options.to?this.result=this.chunks.join(""):this.result=Ct(this.chunks)),this.chunks=[],this.err=t,this.msg=this.strm.msg};var qe={Inflate:Xe,inflate:We,inflateRaw:function(t,e){return(e=e||{}).raw=!0,We(t,e)},ungzip:We,constants:j};const{Deflate:Je,deflate:Qe,deflateRaw:Ve,gzip:$e}=ne,{Inflate:ta,inflate:ea,inflateRaw:aa,ungzip:ia}=qe;var na=Je,sa=Qe,ra=Ve,la=$e,oa=ta,ha=ea,da=aa,_a=ia,fa=j,ca={Deflate:na,deflate:sa,deflateRaw:ra,gzip:la,Inflate:oa,inflate:ha,inflateRaw:da,ungzip:_a,constants:fa};t.Deflate=na,t.Inflate=oa,t.constants=fa,t.default=ca,t.deflate=sa,t.deflateRaw=ra,t.gzip=la,t.inflate=ha,t.inflateRaw=da,t.ungzip=_a,Object.defineProperty(t,"__esModule",{value:!0})})); diff --git a/static/js/wasm.js b/static/js/wasm.js new file mode 100644 index 0000000..b8a746f --- /dev/null +++ b/static/js/wasm.js @@ -0,0 +1,581 @@ +(() => { + window.go = {argv: [], env: {}, importObject: {go: {}}}; + const argv = new URLSearchParams(location.search).get("argv"); + if (argv) { + window.go["argv"] = argv.split(" "); + } +})();// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +"use strict"; + +(() => { + const enosys = () => { + const err = new Error("not implemented"); + err.code = "ENOSYS"; + return err; + }; + + if (!globalThis.fs) { + let outputBuf = ""; + globalThis.fs = { + constants: { O_WRONLY: -1, O_RDWR: -1, O_CREAT: -1, O_TRUNC: -1, O_APPEND: -1, O_EXCL: -1 }, // unused + writeSync(fd, buf) { + outputBuf += decoder.decode(buf); + const nl = outputBuf.lastIndexOf("\n"); + if (nl != -1) { + console.log(outputBuf.substr(0, nl)); + outputBuf = outputBuf.substr(nl + 1); + } + return buf.length; + }, + write(fd, buf, offset, length, position, callback) { + if (offset !== 0 || length !== buf.length || position !== null) { + callback(enosys()); + return; + } + const n = this.writeSync(fd, buf); + callback(null, n); + }, + chmod(path, mode, callback) { callback(enosys()); }, + chown(path, uid, gid, callback) { callback(enosys()); }, + close(fd, callback) { callback(enosys()); }, + fchmod(fd, mode, callback) { callback(enosys()); }, + fchown(fd, uid, gid, callback) { callback(enosys()); }, + fstat(fd, callback) { callback(enosys()); }, + fsync(fd, callback) { callback(null); }, + ftruncate(fd, length, callback) { callback(enosys()); }, + lchown(path, uid, gid, callback) { callback(enosys()); }, + link(path, link, callback) { callback(enosys()); }, + lstat(path, callback) { callback(enosys()); }, + mkdir(path, perm, callback) { callback(enosys()); }, + open(path, flags, mode, callback) { callback(enosys()); }, + read(fd, buffer, offset, length, position, callback) { callback(enosys()); }, + readdir(path, callback) { callback(enosys()); }, + readlink(path, callback) { callback(enosys()); }, + rename(from, to, callback) { callback(enosys()); }, + rmdir(path, callback) { callback(enosys()); }, + stat(path, callback) { callback(enosys()); }, + symlink(path, link, callback) { callback(enosys()); }, + truncate(path, length, callback) { callback(enosys()); }, + unlink(path, callback) { callback(enosys()); }, + utimes(path, atime, mtime, callback) { callback(enosys()); }, + }; + } + + if (!globalThis.process) { + globalThis.process = { + getuid() { return -1; }, + getgid() { return -1; }, + geteuid() { return -1; }, + getegid() { return -1; }, + getgroups() { throw enosys(); }, + pid: -1, + ppid: -1, + umask() { throw enosys(); }, + cwd() { throw enosys(); }, + chdir() { throw enosys(); }, + } + } + + if (!globalThis.crypto) { + throw new Error("globalThis.crypto is not available, polyfill required (crypto.getRandomValues only)"); + } + + if (!globalThis.performance) { + throw new Error("globalThis.performance is not available, polyfill required (performance.now only)"); + } + + if (!globalThis.TextEncoder) { + throw new Error("globalThis.TextEncoder is not available, polyfill required"); + } + + if (!globalThis.TextDecoder) { + throw new Error("globalThis.TextDecoder is not available, polyfill required"); + } + + const encoder = new TextEncoder("utf-8"); + const decoder = new TextDecoder("utf-8"); + + globalThis.Go = class { + constructor() { + this.argv = ["js"]; + this.env = {}; + this.exit = (code) => { + if (code !== 0) { + console.warn("exit code:", code); + } + }; + this._exitPromise = new Promise((resolve) => { + this._resolveExitPromise = resolve; + }); + this._pendingEvent = null; + this._scheduledTimeouts = new Map(); + this._nextCallbackTimeoutID = 1; + + const setInt64 = (addr, v) => { + this.mem.setUint32(addr + 0, v, true); + this.mem.setUint32(addr + 4, Math.floor(v / 4294967296), true); + } + + const getInt64 = (addr) => { + const low = this.mem.getUint32(addr + 0, true); + const high = this.mem.getInt32(addr + 4, true); + return low + high * 4294967296; + } + + const loadValue = (addr) => { + const f = this.mem.getFloat64(addr, true); + if (f === 0) { + return undefined; + } + if (!isNaN(f)) { + return f; + } + + const id = this.mem.getUint32(addr, true); + return this._values[id]; + } + + const storeValue = (addr, v) => { + const nanHead = 0x7FF80000; + + if (typeof v === "number" && v !== 0) { + if (isNaN(v)) { + this.mem.setUint32(addr + 4, nanHead, true); + this.mem.setUint32(addr, 0, true); + return; + } + this.mem.setFloat64(addr, v, true); + return; + } + + if (v === undefined) { + this.mem.setFloat64(addr, 0, true); + return; + } + + let id = this._ids.get(v); + if (id === undefined) { + id = this._idPool.pop(); + if (id === undefined) { + id = this._values.length; + } + this._values[id] = v; + this._goRefCounts[id] = 0; + this._ids.set(v, id); + } + this._goRefCounts[id]++; + let typeFlag = 0; + switch (typeof v) { + case "object": + if (v !== null) { + typeFlag = 1; + } + break; + case "string": + typeFlag = 2; + break; + case "symbol": + typeFlag = 3; + break; + case "function": + typeFlag = 4; + break; + } + this.mem.setUint32(addr + 4, nanHead | typeFlag, true); + this.mem.setUint32(addr, id, true); + } + + const loadSlice = (addr) => { + const array = getInt64(addr + 0); + const len = getInt64(addr + 8); + return new Uint8Array(this._inst.exports.mem.buffer, array, len); + } + + const loadSliceOfValues = (addr) => { + const array = getInt64(addr + 0); + const len = getInt64(addr + 8); + const a = new Array(len); + for (let i = 0; i < len; i++) { + a[i] = loadValue(array + i * 8); + } + return a; + } + + const loadString = (addr) => { + const saddr = getInt64(addr + 0); + const len = getInt64(addr + 8); + return decoder.decode(new DataView(this._inst.exports.mem.buffer, saddr, len)); + } + + const timeOrigin = Date.now() - performance.now(); + this.importObject = { + go: { + // Go's SP does not change as long as no Go code is running. Some operations (e.g. calls, getters and setters) + // may synchronously trigger a Go event handler. This makes Go code get executed in the middle of the imported + // function. A goroutine can switch to a new stack if the current stack is too small (see morestack function). + // This changes the SP, thus we have to update the SP used by the imported function. + + // func wasmExit(code int32) + "runtime.wasmExit": (sp) => { + sp >>>= 0; + const code = this.mem.getInt32(sp + 8, true); + this.exited = true; + delete this._inst; + delete this._values; + delete this._goRefCounts; + delete this._ids; + delete this._idPool; + this.exit(code); + }, + + // func wasmWrite(fd uintptr, p unsafe.Pointer, n int32) + "runtime.wasmWrite": (sp) => { + sp >>>= 0; + const fd = getInt64(sp + 8); + const p = getInt64(sp + 16); + const n = this.mem.getInt32(sp + 24, true); + fs.writeSync(fd, new Uint8Array(this._inst.exports.mem.buffer, p, n)); + }, + + // func resetMemoryDataView() + "runtime.resetMemoryDataView": (sp) => { + sp >>>= 0; + this.mem = new DataView(this._inst.exports.mem.buffer); + }, + + // func nanotime1() int64 + "runtime.nanotime1": (sp) => { + sp >>>= 0; + setInt64(sp + 8, (timeOrigin + performance.now()) * 1000000); + }, + + // func walltime() (sec int64, nsec int32) + "runtime.walltime": (sp) => { + sp >>>= 0; + const msec = (new Date).getTime(); + setInt64(sp + 8, msec / 1000); + this.mem.setInt32(sp + 16, (msec % 1000) * 1000000, true); + }, + + // func scheduleTimeoutEvent(delay int64) int32 + "runtime.scheduleTimeoutEvent": (sp) => { + sp >>>= 0; + const id = this._nextCallbackTimeoutID; + this._nextCallbackTimeoutID++; + this._scheduledTimeouts.set(id, setTimeout( + () => { + this._resume(); + while (this._scheduledTimeouts.has(id)) { + // for some reason Go failed to register the timeout event, log and try again + // (temporary workaround for https://github.com/golang/go/issues/28975) + console.warn("scheduleTimeoutEvent: missed timeout event"); + this._resume(); + } + }, + getInt64(sp + 8) + 1, // setTimeout has been seen to fire up to 1 millisecond early + )); + this.mem.setInt32(sp + 16, id, true); + }, + + // func clearTimeoutEvent(id int32) + "runtime.clearTimeoutEvent": (sp) => { + sp >>>= 0; + const id = this.mem.getInt32(sp + 8, true); + clearTimeout(this._scheduledTimeouts.get(id)); + this._scheduledTimeouts.delete(id); + }, + + // func getRandomData(r []byte) + "runtime.getRandomData": (sp) => { + sp >>>= 0; + crypto.getRandomValues(loadSlice(sp + 8)); + }, + + // func finalizeRef(v ref) + "syscall/js.finalizeRef": (sp) => { + sp >>>= 0; + const id = this.mem.getUint32(sp + 8, true); + this._goRefCounts[id]--; + if (this._goRefCounts[id] === 0) { + const v = this._values[id]; + this._values[id] = null; + this._ids.delete(v); + this._idPool.push(id); + } + }, + + // func stringVal(value string) ref + "syscall/js.stringVal": (sp) => { + sp >>>= 0; + storeValue(sp + 24, loadString(sp + 8)); + }, + + // func valueGet(v ref, p string) ref + "syscall/js.valueGet": (sp) => { + sp >>>= 0; + const result = Reflect.get(loadValue(sp + 8), loadString(sp + 16)); + sp = this._inst.exports.getsp() >>> 0; // see comment above + storeValue(sp + 32, result); + }, + + // func valueSet(v ref, p string, x ref) + "syscall/js.valueSet": (sp) => { + sp >>>= 0; + Reflect.set(loadValue(sp + 8), loadString(sp + 16), loadValue(sp + 32)); + }, + + // func valueDelete(v ref, p string) + "syscall/js.valueDelete": (sp) => { + sp >>>= 0; + Reflect.deleteProperty(loadValue(sp + 8), loadString(sp + 16)); + }, + + // func valueIndex(v ref, i int) ref + "syscall/js.valueIndex": (sp) => { + sp >>>= 0; + storeValue(sp + 24, Reflect.get(loadValue(sp + 8), getInt64(sp + 16))); + }, + + // valueSetIndex(v ref, i int, x ref) + "syscall/js.valueSetIndex": (sp) => { + sp >>>= 0; + Reflect.set(loadValue(sp + 8), getInt64(sp + 16), loadValue(sp + 24)); + }, + + // func valueCall(v ref, m string, args []ref) (ref, bool) + "syscall/js.valueCall": (sp) => { + sp >>>= 0; + try { + const v = loadValue(sp + 8); + const m = Reflect.get(v, loadString(sp + 16)); + const args = loadSliceOfValues(sp + 32); + const result = Reflect.apply(m, v, args); + sp = this._inst.exports.getsp() >>> 0; // see comment above + storeValue(sp + 56, result); + this.mem.setUint8(sp + 64, 1); + } catch (err) { + sp = this._inst.exports.getsp() >>> 0; // see comment above + storeValue(sp + 56, err); + this.mem.setUint8(sp + 64, 0); + } + }, + + // func valueInvoke(v ref, args []ref) (ref, bool) + "syscall/js.valueInvoke": (sp) => { + sp >>>= 0; + try { + const v = loadValue(sp + 8); + const args = loadSliceOfValues(sp + 16); + const result = Reflect.apply(v, undefined, args); + sp = this._inst.exports.getsp() >>> 0; // see comment above + storeValue(sp + 40, result); + this.mem.setUint8(sp + 48, 1); + } catch (err) { + sp = this._inst.exports.getsp() >>> 0; // see comment above + storeValue(sp + 40, err); + this.mem.setUint8(sp + 48, 0); + } + }, + + // func valueNew(v ref, args []ref) (ref, bool) + "syscall/js.valueNew": (sp) => { + sp >>>= 0; + try { + const v = loadValue(sp + 8); + const args = loadSliceOfValues(sp + 16); + const result = Reflect.construct(v, args); + sp = this._inst.exports.getsp() >>> 0; // see comment above + storeValue(sp + 40, result); + this.mem.setUint8(sp + 48, 1); + } catch (err) { + sp = this._inst.exports.getsp() >>> 0; // see comment above + storeValue(sp + 40, err); + this.mem.setUint8(sp + 48, 0); + } + }, + + // func valueLength(v ref) int + "syscall/js.valueLength": (sp) => { + sp >>>= 0; + setInt64(sp + 16, parseInt(loadValue(sp + 8).length)); + }, + + // valuePrepareString(v ref) (ref, int) + "syscall/js.valuePrepareString": (sp) => { + sp >>>= 0; + const str = encoder.encode(String(loadValue(sp + 8))); + storeValue(sp + 16, str); + setInt64(sp + 24, str.length); + }, + + // valueLoadString(v ref, b []byte) + "syscall/js.valueLoadString": (sp) => { + sp >>>= 0; + const str = loadValue(sp + 8); + loadSlice(sp + 16).set(str); + }, + + // func valueInstanceOf(v ref, t ref) bool + "syscall/js.valueInstanceOf": (sp) => { + sp >>>= 0; + this.mem.setUint8(sp + 24, (loadValue(sp + 8) instanceof loadValue(sp + 16)) ? 1 : 0); + }, + + // func copyBytesToGo(dst []byte, src ref) (int, bool) + "syscall/js.copyBytesToGo": (sp) => { + sp >>>= 0; + const dst = loadSlice(sp + 8); + const src = loadValue(sp + 32); + if (!(src instanceof Uint8Array || src instanceof Uint8ClampedArray)) { + this.mem.setUint8(sp + 48, 0); + return; + } + const toCopy = src.subarray(0, dst.length); + dst.set(toCopy); + setInt64(sp + 40, toCopy.length); + this.mem.setUint8(sp + 48, 1); + }, + + // func copyBytesToJS(dst ref, src []byte) (int, bool) + "syscall/js.copyBytesToJS": (sp) => { + sp >>>= 0; + const dst = loadValue(sp + 8); + const src = loadSlice(sp + 16); + if (!(dst instanceof Uint8Array || dst instanceof Uint8ClampedArray)) { + this.mem.setUint8(sp + 48, 0); + return; + } + const toCopy = src.subarray(0, dst.length); + dst.set(toCopy); + setInt64(sp + 40, toCopy.length); + this.mem.setUint8(sp + 48, 1); + }, + + "debug": (value) => { + console.log(value); + }, + } + }; + } + + async run(instance) { + if (!(instance instanceof WebAssembly.Instance)) { + throw new Error("Go.run: WebAssembly.Instance expected"); + } + this._inst = instance; + this.mem = new DataView(this._inst.exports.mem.buffer); + this._values = [ // JS values that Go currently has references to, indexed by reference id + NaN, + 0, + null, + true, + false, + globalThis, + this, + ]; + this._goRefCounts = new Array(this._values.length).fill(Infinity); // number of references that Go has to a JS value, indexed by reference id + this._ids = new Map([ // mapping from JS values to reference ids + [0, 1], + [null, 2], + [true, 3], + [false, 4], + [globalThis, 5], + [this, 6], + ]); + this._idPool = []; // unused ids that have been garbage collected + this.exited = false; // whether the Go program has exited + + // Pass command line arguments and environment variables to WebAssembly by writing them to the linear memory. + let offset = 4096; + + const strPtr = (str) => { + const ptr = offset; + const bytes = encoder.encode(str + "\0"); + new Uint8Array(this.mem.buffer, offset, bytes.length).set(bytes); + offset += bytes.length; + if (offset % 8 !== 0) { + offset += 8 - (offset % 8); + } + return ptr; + }; + + const argc = this.argv.length; + + const argvPtrs = []; + this.argv.forEach((arg) => { + argvPtrs.push(strPtr(arg)); + }); + argvPtrs.push(0); + + const keys = Object.keys(this.env).sort(); + keys.forEach((key) => { + argvPtrs.push(strPtr(`${key}=${this.env[key]}`)); + }); + argvPtrs.push(0); + + const argv = offset; + argvPtrs.forEach((ptr) => { + this.mem.setUint32(offset, ptr, true); + this.mem.setUint32(offset + 4, 0, true); + offset += 8; + }); + + // The linker guarantees global data starts from at least wasmMinDataAddr. + // Keep in sync with cmd/link/internal/ld/data.go:wasmMinDataAddr. + const wasmMinDataAddr = 4096 + 8192; + if (offset >= wasmMinDataAddr) { + throw new Error("total length of command line and environment variables exceeds limit"); + } + + this._inst.exports.run(argc, argv); + if (this.exited) { + this._resolveExitPromise(); + } + await this._exitPromise; + } + + _resume() { + if (this.exited) { + throw new Error("Go program has already exited"); + } + this._inst.exports.resume(); + if (this.exited) { + this._resolveExitPromise(); + } + } + + _makeFuncWrapper(id) { + const go = this; + return function () { + const event = { id: id, this: this, args: arguments }; + go._pendingEvent = event; + go._resume(); + return event.result; + }; + } + } +})(); +(() => { + defaultGo = new Go(); + Object.assign(defaultGo["argv"], defaultGo["argv"].concat(go["argv"])); + Object.assign(defaultGo["env"], go["env"]); + for (let key in go["importObject"]) { + if (typeof defaultGo["importObject"][key] === "undefined") { + defaultGo["importObject"][key] = {}; + } + Object.assign(defaultGo["importObject"][key], go["importObject"][key]); + } + window.go = defaultGo; + if (!WebAssembly.instantiateStreaming) { // polyfill + WebAssembly.instantiateStreaming = async (resp, importObject) => { + const source = await (await resp).arrayBuffer(); + return await WebAssembly.instantiate(source, importObject); + }; + } + WebAssembly.instantiateStreaming(fetch("/wasm/main.wasm"), go.importObject).then((result) => { + go.run(result.instance); + }); +})(); \ No newline at end of file diff --git a/traefik.yml b/traefik.yml new file mode 100644 index 0000000..80daf8b --- /dev/null +++ b/traefik.yml @@ -0,0 +1,18 @@ +api: + insecure: true + debug: true + dashboard: true +log: + level: DEBUG +entryPoints: + web: + address: ":80" + forwardedHeaders: + insecure: true + +providers: + docker: + exposedByDefault: false + endpoint: "unix:///var/run/docker.sock" + file: + filename: "/etc/traefik/dyn.yaml" \ No newline at end of file diff --git a/wasm/codefirst-dockerunner-ui.wasm.gz b/wasm/codefirst-dockerunner-ui.wasm.gz new file mode 100644 index 0000000..e68ab68 Binary files /dev/null and b/wasm/codefirst-dockerunner-ui.wasm.gz differ