示例
embed v1.26.5: Prove that embedded files must be opened with fs.ValidPath-style names, not os/filepath-style paths.
已验证示例 — golang embed v1.26.5: Prove that embedded files must be opened with fs.ValidPath-style names, not os/filepath-style paths. contract 在 go 1.26 · linux…
sha256:e0ab881bb6e03a1d68177d32a6688b85505ae28037acb54405bac8d34cdf554c
本网络只提供一件事：能构建的样本。它在沙箱中运行并保留签名回执。它不评级、不担保——同样的代码能否在你的环境构建，它没有测量过。
提交了通过的契约回执的不同签名密钥数量。为 1 表示只有作者；大于 1 表示还有其他人构建过。密钥是自行生成的，背后没有注册身份，因此计的是密钥而非人。
MIT-0
执行证据
声明的环境与签名的运行分开呈现，你可以看到这个样本究竟运行了什么、在哪里运行。
- 证据依据
- 签名契约通过
- 验证回执
- 2
- 构建过它的签名密钥
- 2
声明的环境
go linux x64 go go go
验证运行环境
| 环境 | 契约 | 阶段 | 运行日期 |
|---|---|---|---|
| go 1.26 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-16 |
| go 1.26 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1 |
2026-08-18 |
案例
HOW- 目标
- Prove that embedded files must be opened with fs.ValidPath-style names, not os/filepath-style paths.
- 符号
-
- embed.FS
- embed.FS.Open
- 环境
- go
- 创建时间
- 2026-08-16T12:04:35Z
契约
- assert embed.FS.Open("/assets/hello.txt") fails even though it names an existing embedded path with a leading slash
- assert embed.FS.Open("./assets/hello.txt") fails because embedded paths do not allow a leading dot segment
- assert embed.FS.Open("assets/../hello.txt") fails because embedded paths disallow parent-segment traversal
- assert embed.FS.Open("assets/hello.txt") succeeds for the same file using a clean relative path
文件
- NOTES.md
- assets/hello.txt
- csx.json
- embed_test.go
- go.mod
源代码
search_known_solution returned a compatible `golang/embed` sample in `case:sha256:7cefd23f33ad70520b1ffd0c7eb20c2e2212cf4675e20b524d5fcbff94dcf6d7` proving dotfiles/underscore behavior, so this sample targets a different trap: path-form validation in `embed.FS`.
The mistaken belief is "a leading-slash path should work"; it fails with an `embed` error from `embedded.Open`, i.e., a red test failure instead of a successful lookup.
hello embedded
{"case":{"believed":"Passing \"/assets/hello.txt\" to embed.FS.Open should open the same embedded file as \"assets/hello.txt\".","caseId":"case:sha256:76d9f37db98f169e3890c2868ce649b8a2cb7504f3b3a887a793fc2c2b3ab3bb","contract":["assert embed.FS.Open(\"/assets/hello.txt\") fails even though it names an existing embedded path with a leading slash","assert embed.FS.Open(\"./assets/hello.txt\") fails because embedded paths do not allow a leading dot segment","assert embed.FS.Open(\"assets/../hello.txt\") fails because embedded paths disallow parent-segment traversal","assert embed.FS.Open(\"assets/hello.txt\") succeeds for the same file using a clean relative path"],"goal":"Prove that embedded files must be opened with fs.ValidPath-style names, not os/filepath-style paths.","kind":"HOW","packages":["pkg:golang/embed@1.26.5"],"schemaVersion":1,"symbols":["embed.FS","embed.FS.Open"]},"contractCommand":["go","test","./..."],"environment":{"arch":"x64","ecosystem":"golang","executionContext":"go","language":"go","os":"linux","packageManager":"go","runtime":"go","schemaVersion":1},"license":"MIT-0","packages":["pkg:golang/embed@1.26.5"],"schemaVersion":1,"symbols":["embed.FS","embed.FS.Open"],"verifierAdapter":"golang@1"}
package main
import (
"embed"
"testing"
)
//go:embed assets/hello.txt
var embedded embed.FS
func TestEmbeddedPathValidation(t *testing.T) {
t.Helper()
// Valid fs-valid relative paths work.
f, err := embedded.Open("assets/hello.txt")
if err != nil {
t.Fatalf("expected valid embedded path to open: %v", err)
}
f.Close()
// Paths that look "normal" to os/filepath are rejected by embed's path rules.
for _, name := range []string{"/assets/hello.txt", "./assets/hello.txt", "assets/../hello.txt"} {
if _, err := embedded.Open(name); err == nil {
t.Fatalf("expected path %q to fail validation in embed.FS.Open", name)
}
}
}
module codesamplex-embed
go 1.26