Rewrite of the LFS server (#15523)

* Restructured code. Moved static checks out of loop.

* Restructured batch api. Add support for individual errors.

* Let router decide if LFS is enabled.

* Renamed methods.

* Return correct status from verify handler.

* Unified media type check in router.

* Changed error code according to spec.

* Moved checks into router.

* Removed invalid v1 api methods.

* Unified methods.

* Display better error messages.

* Added size parameter. Create meta object on upload.

* Use object error on invalid size.

* Skip upload if object exists.

* Moved methods.

* Suppress fields in response.

* Changed error on accept.

* Added tests.

* Use ErrorResponse object.

* Test against message property.

* Add support for the old invalid lfs client.

* Fixed the check because MinIO wraps the error.

* Use individual repositories.

Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: Lauris BH <lauris@nix.lv>

integrations/api_repo_lfs_locks_test.go

@@ -11,6 +11,7 @@ import (
 	"time"
 
 	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/lfs"
 	"code.gitea.io/gitea/modules/setting"
 	api "code.gitea.io/gitea/modules/structs"
 
@@ -40,7 +41,7 @@ func TestAPILFSLocksNotLogin(t *testing.T) {
 	repo := models.AssertExistsAndLoadBean(t, &models.Repository{ID: 1}).(*models.Repository)
 
 	req := NewRequestf(t, "GET", "/%s/%s.git/info/lfs/locks", user.Name, repo.Name)
-	req.Header.Set("Accept", "application/vnd.git-lfs+json")
+	req.Header.Set("Accept", lfs.MediaType)
 	resp := MakeRequest(t, req, http.StatusUnauthorized)
 	var lfsLockError api.LFSLockError
 	DecodeJSON(t, resp, &lfsLockError)
@@ -102,8 +103,8 @@ func TestAPILFSLocksLogged(t *testing.T) {
 	for _, test := range tests {
 		session := loginUser(t, test.user.Name)
 		req := NewRequestWithJSON(t, "POST", fmt.Sprintf("/%s.git/info/lfs/locks", test.repo.FullName()), map[string]string{"path": test.path})
-		req.Header.Set("Accept", "application/vnd.git-lfs+json")
-		req.Header.Set("Content-Type", "application/vnd.git-lfs+json")
+		req.Header.Set("Accept", lfs.MediaType)
+		req.Header.Set("Content-Type", lfs.MediaType)
 		resp := session.MakeRequest(t, req, test.httpResult)
 		if len(test.addTime) > 0 {
 			var lfsLock api.LFSLockResponse
@@ -119,7 +120,7 @@ func TestAPILFSLocksLogged(t *testing.T) {
 	for _, test := range resultsTests {
 		session := loginUser(t, test.user.Name)
 		req := NewRequestf(t, "GET", "/%s.git/info/lfs/locks", test.repo.FullName())
-		req.Header.Set("Accept", "application/vnd.git-lfs+json")
+		req.Header.Set("Accept", lfs.MediaType)
 		resp := session.MakeRequest(t, req, http.StatusOK)
 		var lfsLocks api.LFSLockList
 		DecodeJSON(t, resp, &lfsLocks)
@@ -131,8 +132,8 @@ func TestAPILFSLocksLogged(t *testing.T) {
 		}
 
 		req = NewRequestWithJSON(t, "POST", fmt.Sprintf("/%s.git/info/lfs/locks/verify", test.repo.FullName()), map[string]string{})
-		req.Header.Set("Accept", "application/vnd.git-lfs+json")
-		req.Header.Set("Content-Type", "application/vnd.git-lfs+json")
+		req.Header.Set("Accept", lfs.MediaType)
+		req.Header.Set("Content-Type", lfs.MediaType)
 		resp = session.MakeRequest(t, req, http.StatusOK)
 		var lfsLocksVerify api.LFSLockListVerify
 		DecodeJSON(t, resp, &lfsLocksVerify)
@@ -155,8 +156,8 @@ func TestAPILFSLocksLogged(t *testing.T) {
 	for _, test := range deleteTests {
 		session := loginUser(t, test.user.Name)
 		req := NewRequestWithJSON(t, "POST", fmt.Sprintf("/%s.git/info/lfs/locks/%s/unlock", test.repo.FullName(), test.lockID), map[string]string{})
-		req.Header.Set("Accept", "application/vnd.git-lfs+json")
-		req.Header.Set("Content-Type", "application/vnd.git-lfs+json")
+		req.Header.Set("Accept", lfs.MediaType)
+		req.Header.Set("Content-Type", lfs.MediaType)
 		resp := session.MakeRequest(t, req, http.StatusOK)
 		var lfsLockRep api.LFSLockResponse
 		DecodeJSON(t, resp, &lfsLockRep)
@@ -168,7 +169,7 @@ func TestAPILFSLocksLogged(t *testing.T) {
 	for _, test := range resultsTests {
 		session := loginUser(t, test.user.Name)
 		req := NewRequestf(t, "GET", "/%s.git/info/lfs/locks", test.repo.FullName())
-		req.Header.Set("Accept", "application/vnd.git-lfs+json")
+		req.Header.Set("Accept", lfs.MediaType)
 		resp := session.MakeRequest(t, req, http.StatusOK)
 		var lfsLocks api.LFSLockList
 		DecodeJSON(t, resp, &lfsLocks)