uploads,tools,config,main: 将 upload_file 返回路径改为服务器端绝对路径并透传给 spark_submit

之前 upload_file 把文件写到 DataDir/uploads/<filename>,返回相对路径
uploads/hello.txt。MCP 服务器与 agent 不在同一台机器,agent 无法构造服务
器本地路径,因此 spark_submit 无法定位脚本。

改为由新的 internal/uploads 包 mint 一个 32 字符十六进制 file_id,文件落盘为
DataDir/uploads/<file_id>,元数据写入 <file_id>.meta.json(原始文件名只存在
sidecar 里)。upload_file 返回 {file_id, path, name, size, sha256},其中 path
是绝对路径。spark_submit 的 description 明确要求 LLM 直接把 upload_file 返回
的 path 放进 args,不要自己构造路径。

为什么只在描述里约束而不在代码里拒绝非 mint 的绝对路径:集群本地已有路径
(如 /opt/spark/examples/pi.py)是合法的 spark-submit 参数,代码不能替
LLM 拒绝。

测试锁定:
- internal/uploads: Save 往返、AbsPath/Validate 非法路径、Sweep 过期/未过期/
  孤立 sidecar
- internal/mcp/tools: upload_file 新响应字段、spark_submit 透传 mint 路径与
  集群本地路径

刻意未做:S3/HDFS 上传、给 spark_submit 新增 file_id 参数、在代码层面拒绝
集群本地绝对路径。

破坏性变更:upload_file 响应从相对 path 改为绝对 path,并新增 file_id/name/
sha256 字段。该工具尚无外部调用者。

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
tao.chen
2026-07-13 19:13:14 +08:00
co-authored by Claude
parent 210aeb1315
commit f374ebfdb4
10 changed files with 748 additions and 22 deletions
@@ -0,0 +1,120 @@
package tools
import (
"context"
"os"
"path/filepath"
"strings"
"testing"
"time"
"spark-mcp-go/internal/cluster"
)
func TestSparkSubmit_PathPassthrough(t *testing.T) {
deps, repo := testDepsWithDataDir(t)
deps.SparkSubmitTimeout = 5 * time.Second
store := deps.UploadStore
fileID, _, _, _, absPath, err := store.Save([]byte("print('hi')\n"), "hello.py")
if err != nil {
t.Fatalf("save upload: %v", err)
}
echoed := filepath.Join(t.TempDir(), "echoed")
echoScript := filepath.Join(t.TempDir(), "echo-args.sh")
if err := os.WriteFile(echoScript, []byte("#!/bin/sh\nfor arg do\n echo \"$arg\" >> \"$ECHO_FILE\"\ndone\n"), 0o755); err != nil {
t.Fatalf("write echo script: %v", err)
}
t.Setenv("ECHO_FILE", echoed)
createCluster(t, repo, &cluster.Cluster{
ID: "cluster-echo",
Name: "Echo",
IsActive: true,
AuthType: cluster.AuthNone,
SparkSubmitExecuteBin: echoScript,
})
req := newToolRequest(SparkSubmitName, map[string]any{
"cluster_id": "cluster-echo",
"args": []any{absPath, "--class", "Main"},
})
res, err := deps.SparkSubmitHandler(context.Background(), req)
if err != nil {
t.Fatalf("handler error: %v", err)
}
if res.IsError {
t.Fatalf("unexpected error result: %v", res.Content)
}
got, err := os.ReadFile(echoed)
if err != nil {
t.Fatalf("read echoed args: %v", err)
}
lines := strings.Split(strings.TrimSpace(string(got)), "\n")
want := []string{absPath, "--class", "Main"}
if len(lines) != len(want) {
t.Fatalf("echoed lines=%v, want %v", lines, want)
}
for i, l := range lines {
if l != want[i] {
t.Errorf("line[%d]=%q, want %q", i, l, want[i])
}
}
// Sanity: the canonical path still contains the minted file ID.
if !strings.HasSuffix(absPath, "/"+fileID) {
t.Errorf("absPath=%q does not end with fileID %q", absPath, fileID)
}
}
func TestSparkSubmit_ClusterLocalPathPassthrough(t *testing.T) {
deps, repo := testDepsWithDataDir(t)
deps.SparkSubmitTimeout = 5 * time.Second
echoed := filepath.Join(t.TempDir(), "echoed")
echoScript := filepath.Join(t.TempDir(), "echo-args.sh")
if err := os.WriteFile(echoScript, []byte("#!/bin/sh\nfor arg do\n echo \"$arg\" >> \"$ECHO_FILE\"\ndone\n"), 0o755); err != nil {
t.Fatalf("write echo script: %v", err)
}
t.Setenv("ECHO_FILE", echoed)
createCluster(t, repo, &cluster.Cluster{
ID: "cluster-echo",
Name: "Echo",
IsActive: true,
AuthType: cluster.AuthNone,
SparkSubmitExecuteBin: echoScript,
})
clusterLocalPath := "/usr/bin/env"
req := newToolRequest(SparkSubmitName, map[string]any{
"cluster_id": "cluster-echo",
"args": []any{clusterLocalPath, "--class", "Main"},
})
res, err := deps.SparkSubmitHandler(context.Background(), req)
if err != nil {
t.Fatalf("handler error: %v", err)
}
if res.IsError {
t.Fatalf("unexpected error result: %v", res.Content)
}
got, err := os.ReadFile(echoed)
if err != nil {
t.Fatalf("read echoed args: %v", err)
}
lines := strings.Split(strings.TrimSpace(string(got)), "\n")
want := []string{clusterLocalPath, "--class", "Main"}
if len(lines) != len(want) {
t.Fatalf("echoed lines=%v, want %v", lines, want)
}
for i, l := range lines {
if l != want[i] {
t.Errorf("line[%d]=%q, want %q", i, l, want[i])
}
}
}