forgejo/routers/api/actions/artifacts_utils.go

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// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package actions
import (
"crypto/md5"
"fmt"
"net/http"
"strconv"
"strings"
"code.gitea.io/gitea/models/actions"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/util"
)
const (
artifactXTfsFileLengthHeader = "x-tfs-filelength"
artifactXActionsResultsMD5Header = "x-actions-results-md5"
)
// The rules are from https://github.com/actions/toolkit/blob/main/packages/artifact/src/internal/path-and-artifact-name-validation.ts#L32
var invalidArtifactNameChars = strings.Join([]string{"\\", "/", "\"", ":", "<", ">", "|", "*", "?", "\r", "\n"}, "")
func validateArtifactName(ctx *ArtifactContext, artifactName string) bool {
if strings.ContainsAny(artifactName, invalidArtifactNameChars) {
log.Error("Error checking artifact name contains invalid character")
ctx.Error(http.StatusBadRequest, "Error checking artifact name contains invalid character")
return false
}
return true
}
func validateRunID(ctx *ArtifactContext) (*actions.ActionTask, int64, bool) {
task := ctx.ActionTask
runID := ctx.ParamsInt64("run_id")
if task.Job.RunID != runID {
log.Error("Error runID not match")
ctx.Error(http.StatusBadRequest, "run-id does not match")
return nil, 0, false
}
return task, runID, true
}
func validateRunIDV4(ctx *ArtifactContext, rawRunID string) (*actions.ActionTask, int64, bool) {
task := ctx.ActionTask
runID, err := strconv.ParseInt(rawRunID, 10, 64)
if err != nil || task.Job.RunID != runID {
log.Error("Error runID not match")
ctx.Error(http.StatusBadRequest, "run-id does not match")
return nil, 0, false
}
return task, runID, true
}
func validateArtifactHash(ctx *ArtifactContext, artifactName string) bool {
paramHash := ctx.Params("artifact_hash")
// use artifact name to create upload url
artifactHash := fmt.Sprintf("%x", md5.Sum([]byte(artifactName)))
if paramHash == artifactHash {
return true
}
log.Warn("Invalid artifact hash: %s", paramHash)
ctx.Error(http.StatusBadRequest, "Invalid artifact hash")
return false
}
func parseArtifactItemPath(ctx *ArtifactContext) (string, string, bool) {
// itemPath is generated from upload-artifact action
// it's formatted as {artifact_name}/{artfict_path_in_runner}
// act_runner in host mode on Windows, itemPath is joined by Windows slash '\'
itemPath := util.PathJoinRelX(ctx.Req.URL.Query().Get("itemPath"))
artifactName := strings.Split(itemPath, "/")[0]
artifactPath := strings.TrimPrefix(itemPath, artifactName+"/")
if !validateArtifactHash(ctx, artifactName) {
return "", "", false
}
if !validateArtifactName(ctx, artifactName) {
return "", "", false
}
return artifactName, artifactPath, true
}
// getUploadFileSize returns the size of the file to be uploaded.
// The raw size is the size of the file as reported by the header X-TFS-FileLength.
func getUploadFileSize(ctx *ArtifactContext) (int64, int64, error) {
contentLength := ctx.Req.ContentLength
xTfsLength, _ := strconv.ParseInt(ctx.Req.Header.Get(artifactXTfsFileLengthHeader), 10, 64)
if xTfsLength > 0 {
return xTfsLength, contentLength, nil
}
return contentLength, contentLength, nil
}