Files
mcr/internal/oci/blob.go
Kyle Isom d5580f01f2 Migrate module path from kyle/ to mc/ org
All import paths updated to git.wntrmute.dev/mc/. Bumps mcdsl to v1.2.0.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-27 02:05:59 -07:00

106 lines
3.2 KiB
Go

package oci
import (
"errors"
"fmt"
"io"
"net/http"
"strconv"
"git.wntrmute.dev/mc/mcr/internal/db"
"git.wntrmute.dev/mc/mcr/internal/policy"
)
func (h *Handler) handleBlobGet(w http.ResponseWriter, r *http.Request, repo, digest string) {
if !h.checkPolicy(w, r, policy.ActionPull, repo) {
return
}
repoID, err := h.db.GetRepositoryByName(repo)
if err != nil {
if errors.Is(err, db.ErrRepoNotFound) {
writeOCIError(w, "NAME_UNKNOWN", http.StatusNotFound,
fmt.Sprintf("repository %q not found", repo))
return
}
h.log.Error("blob get: lookup repository", "error", err, "repo", repo)
writeOCIError(w, "UNKNOWN", http.StatusInternalServerError, "internal error")
return
}
exists, err := h.db.BlobExistsInRepo(repoID, digest)
if err != nil {
h.log.Error("blob get: check blob exists in repo", "error", err, "repo", repo, "digest", digest)
writeOCIError(w, "UNKNOWN", http.StatusInternalServerError, "internal error")
return
}
if !exists {
writeOCIError(w, "BLOB_UNKNOWN", http.StatusNotFound,
fmt.Sprintf("blob %q not found in repository", digest))
return
}
size, err := h.blobs.Stat(digest)
if err != nil {
h.log.Error("blob get: stat blob in storage", "error", err, "repo", repo, "digest", digest)
writeOCIError(w, "BLOB_UNKNOWN", http.StatusNotFound, "blob not found in storage")
return
}
rc, err := h.blobs.Open(digest)
if err != nil {
h.log.Error("blob get: open blob in storage", "error", err, "repo", repo, "digest", digest)
writeOCIError(w, "UNKNOWN", http.StatusInternalServerError, "internal error")
return
}
defer func() { _ = rc.Close() }()
w.Header().Set("Content-Type", "application/octet-stream")
w.Header().Set("Docker-Content-Digest", digest)
w.Header().Set("Content-Length", strconv.FormatInt(size, 10))
w.WriteHeader(http.StatusOK)
_, _ = io.Copy(w, rc)
}
func (h *Handler) handleBlobHead(w http.ResponseWriter, r *http.Request, repo, digest string) {
if !h.checkPolicy(w, r, policy.ActionPull, repo) {
return
}
repoID, err := h.db.GetRepositoryByName(repo)
if err != nil {
if errors.Is(err, db.ErrRepoNotFound) {
writeOCIError(w, "NAME_UNKNOWN", http.StatusNotFound,
fmt.Sprintf("repository %q not found", repo))
return
}
h.log.Error("blob head: lookup repository", "error", err, "repo", repo)
writeOCIError(w, "UNKNOWN", http.StatusInternalServerError, "internal error")
return
}
exists, err := h.db.BlobExistsInRepo(repoID, digest)
if err != nil {
h.log.Error("blob head: check blob exists in repo", "error", err, "repo", repo, "digest", digest)
writeOCIError(w, "UNKNOWN", http.StatusInternalServerError, "internal error")
return
}
if !exists {
writeOCIError(w, "BLOB_UNKNOWN", http.StatusNotFound,
fmt.Sprintf("blob %q not found in repository", digest))
return
}
size, err := h.blobs.Stat(digest)
if err != nil {
h.log.Error("blob head: stat blob in storage", "error", err, "repo", repo, "digest", digest)
writeOCIError(w, "BLOB_UNKNOWN", http.StatusNotFound, "blob not found in storage")
return
}
w.Header().Set("Content-Type", "application/octet-stream")
w.Header().Set("Docker-Content-Digest", digest)
w.Header().Set("Content-Length", strconv.FormatInt(size, 10))
w.WriteHeader(http.StatusOK)
}