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6b33152b7d
Replace #16455 Close #21803 Mixing different Gitea contexts together causes some problems: 1. Unable to respond proper content when error occurs, eg: Web should respond HTML while API should respond JSON 2. Unclear dependency, eg: it's unclear when Context is used in APIContext, which fields should be initialized, which methods are necessary. To make things clear, this PR introduces a Base context, it only provides basic Req/Resp/Data features. This PR mainly moves code. There are still many legacy problems and TODOs in code, leave unrelated changes to future PRs.
598 lines
18 KiB
Go
598 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)
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
type (
|
|
listArtifactsResponse struct {
|
|
Count int64 `json:"count"`
|
|
Value []listArtifactsResponseItem `json:"value"`
|
|
}
|
|
listArtifactsResponseItem struct {
|
|
Name string `json:"name"`
|
|
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(),
|
|
})
|
|
}
|