1 files changed, 104 insertions, 0 deletions
diff --git a/routers/api/v1/repo/notes.go b/routers/api/v1/repo/notes.go
new file mode 100644
index 0000000..a4a1d4e
--- /dev/null
+++ b/routers/api/v1/repo/notes.go
@@ -0,0 +1,104 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"fmt"
+	"net/http"
+
+	"code.gitea.io/gitea/modules/git"
+	api "code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/services/context"
+	"code.gitea.io/gitea/services/convert"
+)
+
+// GetNote Get a note corresponding to a single commit from a repository
+func GetNote(ctx *context.APIContext) {
+	// swagger:operation GET /repos/{owner}/{repo}/git/notes/{sha} repository repoGetNote
+	// ---
+	// summary: Get a note corresponding to a single commit from a repository
+	// produces:
+	// - application/json
+	// parameters:
+	// - name: owner
+	//   in: path
+	//   description: owner of the repo
+	//   type: string
+	//   required: true
+	// - name: repo
+	//   in: path
+	//   description: name of the repo
+	//   type: string
+	//   required: true
+	// - name: sha
+	//   in: path
+	//   description: a git ref or commit sha
+	//   type: string
+	//   required: true
+	// - name: verification
+	//   in: query
+	//   description: include verification for every commit (disable for speedup, default 'true')
+	//   type: boolean
+	// - name: files
+	//   in: query
+	//   description: include a list of affected files for every commit (disable for speedup, default 'true')
+	//   type: boolean
+	// responses:
+	//   "200":
+	//     "$ref": "#/responses/Note"
+	//   "422":
+	//     "$ref": "#/responses/validationError"
+	//   "404":
+	//     "$ref": "#/responses/notFound"
+
+	sha := ctx.Params(":sha")
+	if !git.IsValidRefPattern(sha) {
+		ctx.Error(http.StatusUnprocessableEntity, "no valid ref or sha", fmt.Sprintf("no valid ref or sha: %s", sha))
+		return
+	}
+	getNote(ctx, sha)
+}
+
+func getNote(ctx *context.APIContext, identifier string) {
+	if ctx.Repo.GitRepo == nil {
+		ctx.InternalServerError(fmt.Errorf("no open git repo"))
+		return
+	}
+
+	commitID, err := ctx.Repo.GitRepo.ConvertToGitID(identifier)
+	if err != nil {
+		if git.IsErrNotExist(err) {
+			ctx.NotFound(err)
+		} else {
+			ctx.Error(http.StatusInternalServerError, "ConvertToSHA1", err)
+		}
+		return
+	}
+
+	var note git.Note
+	if err := git.GetNote(ctx, ctx.Repo.GitRepo, commitID.String(), &note); err != nil {
+		if git.IsErrNotExist(err) {
+			ctx.NotFound(identifier)
+			return
+		}
+		ctx.Error(http.StatusInternalServerError, "GetNote", err)
+		return
+	}
+
+	verification := ctx.FormString("verification") == "" || ctx.FormBool("verification")
+	files := ctx.FormString("files") == "" || ctx.FormBool("files")
+
+	cmt, err := convert.ToCommit(ctx, ctx.Repo.Repository, ctx.Repo.GitRepo, note.Commit, nil,
+		convert.ToCommitOptions{
+			Stat:         true,
+			Verification: verification,
+			Files:        files,
+		})
+	if err != nil {
+		ctx.Error(http.StatusInternalServerError, "ToCommit", err)
+		return
+	}
+	apiNote := api.Note{Message: string(note.Message), Commit: cmt}
+	ctx.JSON(http.StatusOK, apiNote)
+}