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https://github.com/hanzoai/s3.git
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hanzoai/s3 was an AGPL-3.0 MinIO fork whose network-copyleft blocks embedding
and reselling as a managed service. Replace it wholesale with a fork of
SeaweedFS (github.com/seaweedfs/seaweedfs, Apache-2.0, Go) which ships a
built-in S3 gateway + Filer.
- License: AGPL-3.0 -> Apache-2.0 (upstream LICENSE kept verbatim, incl.
"Copyright 2025 Chris Lu"); NOTICE added crediting SeaweedFS. No AGPL/BUSL/
SSPL/GPL or enterprise ("ee") files remain.
- Module: go.mod path set to github.com/hanzoai/s3 with a self-replace
(replace github.com/seaweedfs/seaweedfs => ./) so the ~1800 internal Go files
keep their upstream import paths with zero churn. Internal identifiers and
import paths are intentionally NOT renamed.
- CLI rebrand: the binary is built as `s3` (was `weed`); root usage, per-command
help/usage/flag strings, shell autocomplete program name, and the product name
in CLI output now read "Hanzo S3" / `s3`. Users never see `weed`.
(e.g. `s3 server`, `s3 filer`, `s3 master`, `s3 volume`, `s3 s3`, `s3 mount`.)
- Build: `make` (or `go build -o s3 ./weed`) builds the `s3` binary green;
`cmd/weed-db` and `cmd/weed-sql` also build; `go vet ./weed/command/` clean.
- README/LLM.md rewritten for Hanzo S3; AGENTS.md/CLAUDE.md symlinks preserved.
- Dropped a 33MB prebuilt Mach-O `stress` binary upstream had committed; `.gitignore`
updated to ignore the `s3` build output.
88 lines
2.6 KiB
Go
88 lines
2.6 KiB
Go
package s3api
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import (
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"net/http"
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"net/url"
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"strings"
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"github.com/gorilla/mux"
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"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
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"github.com/seaweedfs/seaweedfs/weed/s3api/s3err"
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)
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func hasPathSegmentQuery(rawQuery string) bool {
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if strings.Contains(rawQuery, "versionId") || strings.Contains(rawQuery, "uploadId") {
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return true
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}
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if !strings.Contains(rawQuery, "%") {
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return false
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}
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for rawQuery != "" {
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field := rawQuery
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if i := strings.IndexByte(rawQuery, '&'); i >= 0 {
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field, rawQuery = rawQuery[:i], rawQuery[i+1:]
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} else {
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rawQuery = ""
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}
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if i := strings.IndexByte(field, '='); i >= 0 {
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field = field[:i]
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}
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if !strings.Contains(field, "%") {
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continue
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}
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key, err := url.QueryUnescape(field)
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if err == nil && (key == "versionId" || key == "uploadId") {
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return true
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}
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}
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return false
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}
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func hasInvalidPathSegment(values []string) bool {
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for _, value := range values {
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if value != "" && !s3_constants.IsValidPathSegment(value) {
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return true
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}
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}
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return false
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}
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// validateRequestPath rejects requests whose captured {bucket}/{object} mux
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// vars would normalize to a parent-directory traversal once joined into a
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// filer path. The router runs with mux.NewRouter().SkipClean(true), so
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// segments like `..` survive routing; the filer's util.JoinPath later collapses
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// them via filepath.Join. Without this guard, `GET /bucket-A/../evil-bucket/k`
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// matches as bucket=bucket-A, object=../evil-bucket/k, the filer resolves the
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// read against evil-bucket, while IAM authorizes against bucket-A.
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func validateRequestPath(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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// When a var is in the matched route it must be non-empty: an empty
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// bucket would let downstream path.Join collapse it and let the object
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// key pick the bucket.
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if bucket, ok := vars["bucket"]; ok {
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if bucket == "" || !s3_constants.IsValidBucketName(bucket) {
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s3err.WriteErrorResponse(w, r, s3err.ErrInvalidRequest)
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return
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}
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}
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if object, ok := vars["object"]; ok {
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if object == "" || !s3_constants.IsValidObjectKey(object) {
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s3err.WriteErrorResponse(w, r, s3err.ErrInvalidRequest)
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return
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}
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}
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// versionId and uploadId are later used as filer entry names. Avoid
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// parsing every request's query while still recognizing encoded names.
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if hasPathSegmentQuery(r.URL.RawQuery) {
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query := r.URL.Query()
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if hasInvalidPathSegment(query["versionId"]) || hasInvalidPathSegment(query["uploadId"]) {
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s3err.WriteErrorResponse(w, r, s3err.ErrInvalidRequest)
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return
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}
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}
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next.ServeHTTP(w, r)
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})
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}
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