599 lines
18 KiB
Go
599 lines
18 KiB
Go
// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package actions
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// GitHub Actions Artifacts API Simple Description
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//
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// 1. Upload artifact
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// 1.1. Post upload url
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// Post: /api/actions_pipeline/_apis/pipelines/workflows/{run_id}/artifacts?api-version=6.0-preview
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// Request:
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// {
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// "Type": "actions_storage",
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// "Name": "artifact"
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// }
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// Response:
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// {
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// "fileContainerResourceUrl":"/api/actions_pipeline/_apis/pipelines/workflows/{run_id}/artifacts/{artifact_id}/upload"
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// }
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// it acquires an upload url for artifact upload
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// 1.2. Upload artifact
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// PUT: /api/actions_pipeline/_apis/pipelines/workflows/{run_id}/artifacts/{artifact_id}/upload?itemPath=artifact%2Ffilename
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// it upload chunk with headers:
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// x-tfs-filelength: 1024 // total file length
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// content-length: 1024 // chunk length
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// x-actions-results-md5: md5sum // md5sum of chunk
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// content-range: bytes 0-1023/1024 // chunk range
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// we save all chunks to one storage directory after md5sum check
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// 1.3. Confirm upload
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// PATCH: /api/actions_pipeline/_apis/pipelines/workflows/{run_id}/artifacts/{artifact_id}/upload?itemPath=artifact%2Ffilename
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// it confirm upload and merge all chunks to one file, save this file to storage
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//
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// 2. Download artifact
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// 2.1 list artifacts
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// GET: /api/actions_pipeline/_apis/pipelines/workflows/{run_id}/artifacts?api-version=6.0-preview
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// Response:
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// {
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// "count": 1,
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// "value": [
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// {
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// "name": "artifact",
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// "fileContainerResourceUrl": "/api/actions_pipeline/_apis/pipelines/workflows/{run_id}/artifacts/{artifact_id}/path"
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// }
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// ]
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// }
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// 2.2 download artifact
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// GET: /api/actions_pipeline/_apis/pipelines/workflows/{run_id}/artifacts/{artifact_id}/path?api-version=6.0-preview
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// Response:
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// {
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// "value": [
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// {
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// "contentLocation": "/api/actions_pipeline/_apis/pipelines/workflows/{run_id}/artifacts/{artifact_id}/download",
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// "path": "artifact/filename",
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// "itemType": "file"
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// }
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// ]
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// }
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// 2.3 download artifact file
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// GET: /api/actions_pipeline/_apis/pipelines/workflows/{run_id}/artifacts/{artifact_id}/download?itemPath=artifact%2Ffilename
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// Response:
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// download file
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//
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import (
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"compress/gzip"
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"crypto/md5"
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"encoding/base64"
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"errors"
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"fmt"
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"io"
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"net/http"
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"sort"
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"strconv"
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"strings"
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"time"
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"code.gitea.io/gitea/models/actions"
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"code.gitea.io/gitea/modules/context"
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"code.gitea.io/gitea/modules/json"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/storage"
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"code.gitea.io/gitea/modules/util"
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"code.gitea.io/gitea/modules/web"
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)
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const (
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artifactXTfsFileLengthHeader = "x-tfs-filelength"
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artifactXActionsResultsMD5Header = "x-actions-results-md5"
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)
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const artifactRouteBase = "/_apis/pipelines/workflows/{run_id}/artifacts"
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type artifactContextKeyType struct{}
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var artifactContextKey = artifactContextKeyType{}
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type ArtifactContext struct {
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*context.Base
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ActionTask *actions.ActionTask
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}
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func init() {
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web.RegisterHandleTypeProvider[*ArtifactContext](func(req *http.Request) web.ResponseStatusProvider {
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return req.Context().Value(artifactContextKey).(*ArtifactContext)
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})
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}
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func ArtifactsRoutes(prefix string) *web.Route {
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m := web.NewRoute()
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m.Use(ArtifactContexter())
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r := artifactRoutes{
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prefix: prefix,
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fs: storage.ActionsArtifacts,
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}
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m.Group(artifactRouteBase, func() {
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// retrieve, list and confirm artifacts
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m.Combo("").Get(r.listArtifacts).Post(r.getUploadArtifactURL).Patch(r.comfirmUploadArtifact)
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// handle container artifacts list and download
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m.Group("/{artifact_id}", func() {
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m.Put("/upload", r.uploadArtifact)
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m.Get("/path", r.getDownloadArtifactURL)
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m.Get("/download", r.downloadArtifact)
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})
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})
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return m
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}
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func ArtifactContexter() func(next http.Handler) http.Handler {
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return func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
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base, baseCleanUp := context.NewBaseContext(resp, req)
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defer baseCleanUp()
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ctx := &ArtifactContext{Base: base}
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ctx.AppendContextValue(artifactContextKey, ctx)
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// action task call server api with Bearer ACTIONS_RUNTIME_TOKEN
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// we should verify the ACTIONS_RUNTIME_TOKEN
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authHeader := req.Header.Get("Authorization")
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if len(authHeader) == 0 || !strings.HasPrefix(authHeader, "Bearer ") {
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ctx.Error(http.StatusUnauthorized, "Bad authorization header")
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return
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}
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authToken := strings.TrimPrefix(authHeader, "Bearer ")
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task, err := actions.GetRunningTaskByToken(req.Context(), authToken)
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if err != nil {
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log.Error("Error runner api getting task: %v", err)
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ctx.Error(http.StatusInternalServerError, "Error runner api getting task")
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return
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}
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if err := task.LoadJob(req.Context()); err != nil {
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log.Error("Error runner api getting job: %v", err)
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ctx.Error(http.StatusInternalServerError, "Error runner api getting job")
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return
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}
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ctx.ActionTask = task
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next.ServeHTTP(ctx.Resp, ctx.Req)
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})
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}
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}
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type artifactRoutes struct {
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prefix string
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fs storage.ObjectStorage
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}
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func (ar artifactRoutes) buildArtifactURL(runID, artifactID int64, suffix string) string {
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uploadURL := strings.TrimSuffix(setting.AppURL, "/") + strings.TrimSuffix(ar.prefix, "/") +
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strings.ReplaceAll(artifactRouteBase, "{run_id}", strconv.FormatInt(runID, 10)) +
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"/" + strconv.FormatInt(artifactID, 10) + "/" + suffix
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return uploadURL
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}
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type getUploadArtifactRequest struct {
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Type string
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Name string
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}
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type getUploadArtifactResponse struct {
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FileContainerResourceURL string `json:"fileContainerResourceUrl"`
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}
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func (ar artifactRoutes) validateRunID(ctx *ArtifactContext) (*actions.ActionTask, int64, bool) {
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task := ctx.ActionTask
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runID := ctx.ParamsInt64("run_id")
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if task.Job.RunID != runID {
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log.Error("Error runID not match")
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ctx.Error(http.StatusBadRequest, "run-id does not match")
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return nil, 0, false
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}
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return task, runID, true
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}
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// getUploadArtifactURL generates a URL for uploading an artifact
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func (ar artifactRoutes) getUploadArtifactURL(ctx *ArtifactContext) {
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task, runID, ok := ar.validateRunID(ctx)
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if !ok {
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return
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}
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var req getUploadArtifactRequest
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if err := json.NewDecoder(ctx.Req.Body).Decode(&req); err != nil {
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log.Error("Error decode request body: %v", err)
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ctx.Error(http.StatusInternalServerError, "Error decode request body")
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return
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}
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artifact, err := actions.CreateArtifact(ctx, task, req.Name)
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if err != nil {
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log.Error("Error creating artifact: %v", err)
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ctx.Error(http.StatusInternalServerError, err.Error())
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return
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}
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resp := getUploadArtifactResponse{
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FileContainerResourceURL: ar.buildArtifactURL(runID, artifact.ID, "upload"),
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}
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log.Debug("[artifact] get upload url: %s, artifact id: %d", resp.FileContainerResourceURL, artifact.ID)
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ctx.JSON(http.StatusOK, resp)
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}
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// getUploadFileSize returns the size of the file to be uploaded.
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// The raw size is the size of the file as reported by the header X-TFS-FileLength.
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func (ar artifactRoutes) getUploadFileSize(ctx *ArtifactContext) (int64, int64, error) {
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contentLength := ctx.Req.ContentLength
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xTfsLength, _ := strconv.ParseInt(ctx.Req.Header.Get(artifactXTfsFileLengthHeader), 10, 64)
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if xTfsLength > 0 {
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return xTfsLength, contentLength, nil
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}
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return contentLength, contentLength, nil
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}
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func (ar artifactRoutes) saveUploadChunk(ctx *ArtifactContext,
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artifact *actions.ActionArtifact,
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contentSize, runID int64,
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) (int64, error) {
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contentRange := ctx.Req.Header.Get("Content-Range")
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start, end, length := int64(0), int64(0), int64(0)
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if _, err := fmt.Sscanf(contentRange, "bytes %d-%d/%d", &start, &end, &length); err != nil {
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return -1, fmt.Errorf("parse content range error: %v", err)
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}
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storagePath := fmt.Sprintf("tmp%d/%d-%d-%d.chunk", runID, artifact.ID, start, end)
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// use io.TeeReader to avoid reading all body to md5 sum.
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// it writes data to hasher after reading end
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// if hash is not matched, delete the read-end result
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hasher := md5.New()
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r := io.TeeReader(ctx.Req.Body, hasher)
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// save chunk to storage
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writtenSize, err := ar.fs.Save(storagePath, r, -1)
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if err != nil {
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return -1, fmt.Errorf("save chunk to storage error: %v", err)
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}
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// check md5
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reqMd5String := ctx.Req.Header.Get(artifactXActionsResultsMD5Header)
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chunkMd5String := base64.StdEncoding.EncodeToString(hasher.Sum(nil))
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log.Debug("[artifact] check chunk md5, sum: %s, header: %s", chunkMd5String, reqMd5String)
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if reqMd5String != chunkMd5String || writtenSize != contentSize {
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if err := ar.fs.Delete(storagePath); err != nil {
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log.Error("Error deleting chunk: %s, %v", storagePath, err)
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}
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return -1, fmt.Errorf("md5 not match")
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}
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log.Debug("[artifact] save chunk %s, size: %d, artifact id: %d, start: %d, end: %d",
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storagePath, contentSize, artifact.ID, start, end)
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return length, nil
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}
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// The rules are from https://github.com/actions/toolkit/blob/main/packages/artifact/src/internal/path-and-artifact-name-validation.ts#L32
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var invalidArtifactNameChars = strings.Join([]string{"\\", "/", "\"", ":", "<", ">", "|", "*", "?", "\r", "\n"}, "")
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func (ar artifactRoutes) uploadArtifact(ctx *ArtifactContext) {
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_, runID, ok := ar.validateRunID(ctx)
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if !ok {
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return
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}
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artifactID := ctx.ParamsInt64("artifact_id")
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artifact, err := actions.GetArtifactByID(ctx, artifactID)
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if errors.Is(err, util.ErrNotExist) {
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log.Error("Error getting artifact: %v", err)
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ctx.Error(http.StatusNotFound, err.Error())
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return
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} else if err != nil {
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log.Error("Error getting artifact: %v", err)
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ctx.Error(http.StatusInternalServerError, err.Error())
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return
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}
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// itemPath is generated from upload-artifact action
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// it's formatted as {artifact_name}/{artfict_path_in_runner}
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itemPath := util.PathJoinRel(ctx.Req.URL.Query().Get("itemPath"))
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artifactName := strings.Split(itemPath, "/")[0]
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// checkArtifactName checks if the artifact name contains invalid characters.
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// If the name contains invalid characters, an error is returned.
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if strings.ContainsAny(artifactName, invalidArtifactNameChars) {
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log.Error("Error checking artifact name contains invalid character")
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ctx.Error(http.StatusBadRequest, err.Error())
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return
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}
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// get upload file size
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fileSize, contentLength, err := ar.getUploadFileSize(ctx)
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if err != nil {
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log.Error("Error getting upload file size: %v", err)
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ctx.Error(http.StatusInternalServerError, err.Error())
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return
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}
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// save chunk
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chunkAllLength, err := ar.saveUploadChunk(ctx, artifact, contentLength, runID)
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if err != nil {
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log.Error("Error saving upload chunk: %v", err)
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ctx.Error(http.StatusInternalServerError, err.Error())
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return
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}
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// if artifact name is not set, update it
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if artifact.ArtifactName == "" {
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artifact.ArtifactName = artifactName
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artifact.ArtifactPath = itemPath // path in container
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artifact.FileSize = fileSize // this is total size of all chunks
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artifact.FileCompressedSize = chunkAllLength
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artifact.ContentEncoding = ctx.Req.Header.Get("Content-Encoding")
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if err := actions.UpdateArtifactByID(ctx, artifact.ID, artifact); err != nil {
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log.Error("Error updating artifact: %v", err)
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ctx.Error(http.StatusInternalServerError, err.Error())
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return
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}
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}
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ctx.JSON(http.StatusOK, map[string]string{
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"message": "success",
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})
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}
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// comfirmUploadArtifact comfirm upload artifact.
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// if all chunks are uploaded, merge them to one file.
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func (ar artifactRoutes) comfirmUploadArtifact(ctx *ArtifactContext) {
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_, runID, ok := ar.validateRunID(ctx)
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if !ok {
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return
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}
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if err := ar.mergeArtifactChunks(ctx, runID); err != nil {
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log.Error("Error merging chunks: %v", err)
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ctx.Error(http.StatusInternalServerError, err.Error())
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return
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}
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ctx.JSON(http.StatusOK, map[string]string{
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"message": "success",
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})
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}
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type chunkItem struct {
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ArtifactID int64
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Start int64
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End int64
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Path string
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}
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func (ar artifactRoutes) mergeArtifactChunks(ctx *ArtifactContext, runID int64) error {
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storageDir := fmt.Sprintf("tmp%d", runID)
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var chunks []*chunkItem
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if err := ar.fs.IterateObjects(storageDir, func(path string, obj storage.Object) error {
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item := chunkItem{Path: path}
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if _, err := fmt.Sscanf(path, storageDir+"/%d-%d-%d.chunk", &item.ArtifactID, &item.Start, &item.End); err != nil {
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return fmt.Errorf("parse content range error: %v", err)
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}
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chunks = append(chunks, &item)
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return nil
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}); err != nil {
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return err
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}
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// group chunks by artifact id
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chunksMap := make(map[int64][]*chunkItem)
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for _, c := range chunks {
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chunksMap[c.ArtifactID] = append(chunksMap[c.ArtifactID], c)
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}
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for artifactID, cs := range chunksMap {
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// get artifact to handle merged chunks
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artifact, err := actions.GetArtifactByID(ctx, cs[0].ArtifactID)
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if err != nil {
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return fmt.Errorf("get artifact error: %v", err)
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}
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sort.Slice(cs, func(i, j int) bool {
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return cs[i].Start < cs[j].Start
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})
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allChunks := make([]*chunkItem, 0)
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startAt := int64(-1)
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// check if all chunks are uploaded and in order and clean repeated chunks
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for _, c := range cs {
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// startAt is -1 means this is the first chunk
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// previous c.ChunkEnd + 1 == c.ChunkStart means this chunk is in order
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// StartAt is not -1 and c.ChunkStart is not startAt + 1 means there is a chunk missing
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if c.Start == (startAt + 1) {
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allChunks = append(allChunks, c)
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startAt = c.End
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}
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}
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// if the last chunk.End + 1 is not equal to chunk.ChunkLength, means chunks are not uploaded completely
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if startAt+1 != artifact.FileCompressedSize {
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log.Debug("[artifact] chunks are not uploaded completely, artifact_id: %d", artifactID)
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break
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}
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// use multiReader
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readers := make([]io.Reader, 0, len(allChunks))
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closeReaders := func() {
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for _, r := range readers {
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_ = r.(io.Closer).Close() // it guarantees to be io.Closer by the following loop's Open function
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}
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readers = nil
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}
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defer closeReaders()
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for _, c := range allChunks {
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var readCloser io.ReadCloser
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if readCloser, err = ar.fs.Open(c.Path); err != nil {
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return fmt.Errorf("open chunk error: %v, %s", err, c.Path)
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}
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readers = append(readers, readCloser)
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}
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mergedReader := io.MultiReader(readers...)
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// if chunk is gzip, decompress it
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if artifact.ContentEncoding == "gzip" {
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var err error
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mergedReader, err = gzip.NewReader(mergedReader)
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if err != nil {
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return fmt.Errorf("gzip reader error: %v", err)
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}
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}
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// save merged file
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storagePath := fmt.Sprintf("%d/%d/%d.chunk", runID%255, artifactID%255, time.Now().UnixNano())
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written, err := ar.fs.Save(storagePath, mergedReader, -1)
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if err != nil {
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return fmt.Errorf("save merged file error: %v", err)
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}
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if written != artifact.FileSize {
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return fmt.Errorf("merged file size is not equal to chunk length")
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}
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// save storage path to artifact
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log.Debug("[artifact] merge chunks to artifact: %d, %s", artifact.ID, storagePath)
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artifact.StoragePath = storagePath
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artifact.Status = actions.ArtifactStatusUploadConfirmed
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if err := actions.UpdateArtifactByID(ctx, artifact.ID, artifact); err != nil {
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return fmt.Errorf("update artifact error: %v", err)
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}
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closeReaders() // close before delete
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// drop chunks
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for _, c := range cs {
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if err := ar.fs.Delete(c.Path); err != nil {
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return fmt.Errorf("delete chunk file error: %v", err)
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}
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}
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}
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return nil
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}
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type (
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listArtifactsResponse struct {
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Count int64 `json:"count"`
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Value []listArtifactsResponseItem `json:"value"`
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}
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listArtifactsResponseItem struct {
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Name string `json:"name"`
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FileContainerResourceURL string `json:"fileContainerResourceUrl"`
|
|
}
|
|
)
|
|
|
|
func (ar artifactRoutes) listArtifacts(ctx *ArtifactContext) {
|
|
_, runID, ok := ar.validateRunID(ctx)
|
|
if !ok {
|
|
return
|
|
}
|
|
|
|
artifacts, err := actions.ListArtifactsByRunID(ctx, runID)
|
|
if err != nil {
|
|
log.Error("Error getting artifacts: %v", err)
|
|
ctx.Error(http.StatusInternalServerError, err.Error())
|
|
return
|
|
}
|
|
|
|
artficatsData := make([]listArtifactsResponseItem, 0, len(artifacts))
|
|
for _, a := range artifacts {
|
|
artficatsData = append(artficatsData, listArtifactsResponseItem{
|
|
Name: a.ArtifactName,
|
|
FileContainerResourceURL: ar.buildArtifactURL(runID, a.ID, "path"),
|
|
})
|
|
}
|
|
respData := listArtifactsResponse{
|
|
Count: int64(len(artficatsData)),
|
|
Value: artficatsData,
|
|
}
|
|
ctx.JSON(http.StatusOK, respData)
|
|
}
|
|
|
|
type (
|
|
downloadArtifactResponse struct {
|
|
Value []downloadArtifactResponseItem `json:"value"`
|
|
}
|
|
downloadArtifactResponseItem struct {
|
|
Path string `json:"path"`
|
|
ItemType string `json:"itemType"`
|
|
ContentLocation string `json:"contentLocation"`
|
|
}
|
|
)
|
|
|
|
func (ar artifactRoutes) getDownloadArtifactURL(ctx *ArtifactContext) {
|
|
_, runID, ok := ar.validateRunID(ctx)
|
|
if !ok {
|
|
return
|
|
}
|
|
|
|
artifactID := ctx.ParamsInt64("artifact_id")
|
|
artifact, err := actions.GetArtifactByID(ctx, artifactID)
|
|
if errors.Is(err, util.ErrNotExist) {
|
|
log.Error("Error getting artifact: %v", err)
|
|
ctx.Error(http.StatusNotFound, err.Error())
|
|
return
|
|
} else if err != nil {
|
|
log.Error("Error getting artifact: %v", err)
|
|
ctx.Error(http.StatusInternalServerError, err.Error())
|
|
return
|
|
}
|
|
downloadURL := ar.buildArtifactURL(runID, artifact.ID, "download")
|
|
itemPath := util.PathJoinRel(ctx.Req.URL.Query().Get("itemPath"))
|
|
respData := downloadArtifactResponse{
|
|
Value: []downloadArtifactResponseItem{{
|
|
Path: util.PathJoinRel(itemPath, artifact.ArtifactPath),
|
|
ItemType: "file",
|
|
ContentLocation: downloadURL,
|
|
}},
|
|
}
|
|
ctx.JSON(http.StatusOK, respData)
|
|
}
|
|
|
|
func (ar artifactRoutes) downloadArtifact(ctx *ArtifactContext) {
|
|
_, runID, ok := ar.validateRunID(ctx)
|
|
if !ok {
|
|
return
|
|
}
|
|
|
|
artifactID := ctx.ParamsInt64("artifact_id")
|
|
artifact, err := actions.GetArtifactByID(ctx, artifactID)
|
|
if errors.Is(err, util.ErrNotExist) {
|
|
log.Error("Error getting artifact: %v", err)
|
|
ctx.Error(http.StatusNotFound, err.Error())
|
|
return
|
|
} else if err != nil {
|
|
log.Error("Error getting artifact: %v", err)
|
|
ctx.Error(http.StatusInternalServerError, err.Error())
|
|
return
|
|
}
|
|
if artifact.RunID != runID {
|
|
log.Error("Error dismatch runID and artifactID, task: %v, artifact: %v", runID, artifactID)
|
|
ctx.Error(http.StatusBadRequest, err.Error())
|
|
return
|
|
}
|
|
|
|
fd, err := ar.fs.Open(artifact.StoragePath)
|
|
if err != nil {
|
|
log.Error("Error opening file: %v", err)
|
|
ctx.Error(http.StatusInternalServerError, err.Error())
|
|
return
|
|
}
|
|
defer fd.Close()
|
|
|
|
if strings.HasSuffix(artifact.ArtifactPath, ".gz") {
|
|
ctx.Resp.Header().Set("Content-Encoding", "gzip")
|
|
}
|
|
ctx.ServeContent(fd, &context.ServeHeaderOptions{
|
|
Filename: artifact.ArtifactName,
|
|
LastModified: artifact.CreatedUnix.AsLocalTime(),
|
|
})
|
|
}
|