Files
forge/modules/packages/goproxy/metadata.go
zeekayandHanzo Dev 9a07b4d089 legal: Hanzo AI, Inc. copyright above the upstream notices
2978 files. The fork is 2026-07-15 (rebrand: gitea.dev -> github.com/hanzoai/git),
so 2026 is the year, and "Copyright 2026 Hanzo AI, Inc." was already the form
used by the handful of files that had ours.

Shape is now:

	// Copyright 2026 Hanzo AI, Inc. All rights reserved.
	// Copyright 2015 The Gogs Authors. All rights reserved.
	// Copyright 2019 The Gitea Authors. All rights reserved.
	// SPDX-License-Identifier: MIT

Ours on top, theirs retained verbatim. Retained because MIT requires it, and
separately because they are true — those authors did write that code.

Not renamed to "The Git Authors": Git is a different project under a different
license, and putting its name here would attribute this code to people who have
nothing to do with it. Adding our line is the fix; overwriting theirs would have
been both a licence violation and a false statement.

gofmt still reports import-order drift in some of these files. It predates this
change (verified against a stash) and is left alone rather than burying a
one-line-per-file legal change under 3000 files of unrelated reordering.

Build clean.

Co-authored-by: Hanzo Dev <[email protected]>
2026-07-27 13:49:52 -07:00

105 lines
2.2 KiB
Go

// Copyright 2026 Hanzo AI, Inc. All rights reserved.
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package goproxy
import (
"archive/zip"
"io"
"path"
"strings"
"github.com/hanzoai/git/modules/util"
"golang.org/x/mod/semver"
)
const (
PropertyGoMod = "go.mod"
maxGoModFileSize = 16 * 1024 * 1024 // https://go.dev/ref/mod#zip-path-size-constraints
)
var (
ErrInvalidStructure = util.NewInvalidArgumentErrorf("package has invalid structure")
ErrInvalidVersion = util.NewInvalidArgumentErrorf("package version is invalid")
ErrGoModFileTooLarge = util.NewInvalidArgumentErrorf("go.mod file is too large")
)
type Package struct {
Name string
Version string
GoMod string
}
// ParsePackage parses the Go package file
// https://go.dev/ref/mod#zip-files
func ParsePackage(r io.ReaderAt, size int64) (*Package, error) {
archive, err := zip.NewReader(r, size)
if err != nil {
return nil, err
}
var p *Package
for _, file := range archive.File {
nameAndVersion := path.Dir(file.Name)
parts := strings.SplitN(nameAndVersion, "@", 2)
if len(parts) != 2 {
continue
}
versionParts := strings.SplitN(parts[1], "/", 2)
if p == nil {
p = &Package{
Name: strings.TrimSuffix(nameAndVersion, "@"+parts[1]),
Version: versionParts[0],
}
// the version is taken verbatim from the zip path and later written
// one per line into the @v/list proxy response, so it has to be a
// valid module version (no newlines or other stray characters)
if !semver.IsValid(p.Version) {
return nil, ErrInvalidVersion
}
}
if len(versionParts) > 1 {
// files are expected in the "root" folder
continue
}
if path.Base(file.Name) == "go.mod" {
if file.UncompressedSize64 > maxGoModFileSize {
return nil, ErrGoModFileTooLarge
}
f, err := archive.Open(file.Name)
if err != nil {
return nil, err
}
defer f.Close()
bytes, err := io.ReadAll(&io.LimitedReader{R: f, N: maxGoModFileSize})
if err != nil {
return nil, err
}
p.GoMod = string(bytes)
return p, nil
}
}
if p == nil {
return nil, ErrInvalidStructure
}
p.GoMod = "module " + p.Name
return p, nil
}