feat(quota): Quota enforcement

The previous commit laid out the foundation of the quota engine, this
one builds on top of it, and implements the actual enforcement.

Enforcement happens at the route decoration level, whenever possible. In
case of the API, when over quota, a 413 error is returned, with an
appropriate JSON payload. In case of web routes, a 413 HTML page is
rendered with similar information.

This implementation is for a **soft quota**: quota usage is checked
before an operation is to be performed, and the operation is *only*
denied if the user is already over quota. This makes it possible to go
over quota, but has the significant advantage of being practically
implementable within the current Forgejo architecture.

The goal of enforcement is to deny actions that can make the user go
over quota, and allow the rest. As such, deleting things should - in
almost all cases - be possible. A prime exemption is deleting files via
the web ui: that creates a new commit, which in turn increases repo
size, thus, is denied if the user is over quota.

Limitations
-----------

Because we generally work at a route decorator level, and rarely
look *into* the operation itself, `size:repos:public` and
`size:repos:private` are not enforced at this level, the engine enforces
against `size:repos:all`. This will be improved in the future.

AGit does not play very well with this system, because AGit PRs count
toward the repo they're opened against, while in the GitHub-style fork +
pull model, it counts against the fork. This too, can be improved in the
future.

There's very little done on the UI side to guard against going over
quota. What this patch implements, is enforcement, not prevention. The
UI will still let you *try* operations that *will* result in a denial.

Signed-off-by: Gergely Nagy <forgejo@gergo.csillger.hu>

options/locale/locale_en-US.ini

@@ -115,6 +115,7 @@ loading = Loading…
 
 error = Error
 error404 = The page you are trying to reach either <strong>does not exist</strong> or <strong>you are not authorized</strong> to view it.
+error413 = You have exhausted your quota.
 go_back = Go Back
 invalid_data = Invalid data: %v
 
@@ -2196,6 +2197,7 @@ settings.units.add_more = Add more...
 
 settings.sync_mirror = Synchronize now
 settings.pull_mirror_sync_in_progress = Pulling changes from the remote %s at the moment.
+settings.pull_mirror_sync_quota_exceeded = Quota exceeded, not pulling changes.
 settings.push_mirror_sync_in_progress = Pushing changes to the remote %s at the moment.
 settings.site = Website
 settings.update_settings = Save settings
@@ -2279,6 +2281,7 @@ settings.transfer_owner = New owner
 settings.transfer_perform = Perform transfer
 settings.transfer_started = This repository has been marked for transfer and awaits confirmation from "%s"
 settings.transfer_succeed = The repository has been transferred.
+settings.transfer_quota_exceeded = The new owner (%s) is over quota. The repository has not been transferred.
 settings.signing_settings = Signing verification settings
 settings.trust_model = Signature trust model
 settings.trust_model.default = Default trust model

routers/api/actions/artifacts.go

@@ -71,6 +71,7 @@ import (
 
 	"code.gitea.io/gitea/models/actions"
 	"code.gitea.io/gitea/models/db"
+	quota_model "code.gitea.io/gitea/models/quota"
 	"code.gitea.io/gitea/modules/json"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/setting"
@@ -240,6 +241,18 @@ func (ar artifactRoutes) uploadArtifact(ctx *ArtifactContext) {
 		return
 	}
 
+	// check the owner's quota
+	ok, err := quota_model.EvaluateForUser(ctx, ctx.ActionTask.OwnerID, quota_model.LimitSubjectSizeAssetsArtifacts)
+	if err != nil {
+		log.Error("quota_model.EvaluateForUser: %v", err)
+		ctx.Error(http.StatusInternalServerError, "Error checking quota")
+		return
+	}
+	if !ok {
+		ctx.Error(http.StatusRequestEntityTooLarge, "Quota exceeded")
+		return
+	}
+
 	// get upload file size
 	fileRealTotalSize, contentLength := getUploadFileSize(ctx)
 

routers/api/actions/artifactsv4.go

@@ -92,6 +92,7 @@ import (
 
 	"code.gitea.io/gitea/models/actions"
 	"code.gitea.io/gitea/models/db"
+	quota_model "code.gitea.io/gitea/models/quota"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/storage"
@@ -290,6 +291,18 @@ func (r *artifactV4Routes) uploadArtifact(ctx *ArtifactContext) {
 		return
 	}
 
+	// check the owner's quota
+	ok, err := quota_model.EvaluateForUser(ctx, task.OwnerID, quota_model.LimitSubjectSizeAssetsArtifacts)
+	if err != nil {
+		log.Error("quota_model.EvaluateForUser: %v", err)
+		ctx.Error(http.StatusInternalServerError, "Error checking quota")
+		return
+	}
+	if !ok {
+		ctx.Error(http.StatusRequestEntityTooLarge, "Quota exceeded")
+		return
+	}
+
 	comp := ctx.Req.URL.Query().Get("comp")
 	switch comp {
 	case "block", "appendBlock":

routers/api/packages/api.go

@@ -10,6 +10,7 @@ import (
 
 	auth_model "code.gitea.io/gitea/models/auth"
 	"code.gitea.io/gitea/models/perm"
+	quota_model "code.gitea.io/gitea/models/quota"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/web"
@@ -74,6 +75,21 @@ func reqPackageAccess(accessMode perm.AccessMode) func(ctx *context.Context) {
 	}
 }
 
+func enforcePackagesQuota() func(ctx *context.Context) {
+	return func(ctx *context.Context) {
+		ok, err := quota_model.EvaluateForUser(ctx, ctx.Doer.ID, quota_model.LimitSubjectSizeAssetsPackagesAll)
+		if err != nil {
+			log.Error("quota_model.EvaluateForUser: %v", err)
+			ctx.Error(http.StatusInternalServerError, "Error checking quota")
+			return
+		}
+		if !ok {
+			ctx.Error(http.StatusRequestEntityTooLarge, "enforcePackagesQuota", "quota exceeded")
+			return
+		}
+	}
+}
+
 func verifyAuth(r *web.Route, authMethods []auth.Method) {
 	if setting.Service.EnableReverseProxyAuth {
 		authMethods = append(authMethods, &auth.ReverseProxy{})
@@ -111,7 +127,7 @@ func CommonRoutes() *web.Route {
 		r.Group("/alpine", func() {
 			r.Get("/key", alpine.GetRepositoryKey)
 			r.Group("/{branch}/{repository}", func() {
-				r.Put("", reqPackageAccess(perm.AccessModeWrite), alpine.UploadPackageFile)
+				r.Put("", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), alpine.UploadPackageFile)
 				r.Group("/{architecture}", func() {
 					r.Get("/APKINDEX.tar.gz", alpine.GetRepositoryFile)
 					r.Group("/{filename}", func() {
@@ -124,12 +140,12 @@ func CommonRoutes() *web.Route {
 		r.Group("/cargo", func() {
 			r.Group("/api/v1/crates", func() {
 				r.Get("", cargo.SearchPackages)
-				r.Put("/new", reqPackageAccess(perm.AccessModeWrite), cargo.UploadPackage)
+				r.Put("/new", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), cargo.UploadPackage)
 				r.Group("/{package}", func() {
 					r.Group("/{version}", func() {
 						r.Get("/download", cargo.DownloadPackageFile)
 						r.Delete("/yank", reqPackageAccess(perm.AccessModeWrite), cargo.YankPackage)
-						r.Put("/unyank", reqPackageAccess(perm.AccessModeWrite), cargo.UnyankPackage)
+						r.Put("/unyank", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), cargo.UnyankPackage)
 					})
 					r.Get("/owners", cargo.ListOwners)
 				})
@@ -147,7 +163,7 @@ func CommonRoutes() *web.Route {
 				r.Get("/search", chef.EnumeratePackages)
 				r.Group("/cookbooks", func() {
 					r.Get("", chef.EnumeratePackages)
-					r.Post("", reqPackageAccess(perm.AccessModeWrite), chef.UploadPackage)
+					r.Post("", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), chef.UploadPackage)
 					r.Group("/{name}", func() {
 						r.Get("", chef.PackageMetadata)
 						r.Group("/versions/{version}", func() {
@@ -167,7 +183,7 @@ func CommonRoutes() *web.Route {
 			r.Get("/p2/{vendorname}/{projectname}~dev.json", composer.PackageMetadata)
 			r.Get("/p2/{vendorname}/{projectname}.json", composer.PackageMetadata)
 			r.Get("/files/{package}/{version}/{filename}", composer.DownloadPackageFile)
-			r.Put("", reqPackageAccess(perm.AccessModeWrite), composer.UploadPackage)
+			r.Put("", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), composer.UploadPackage)
 		}, reqPackageAccess(perm.AccessModeRead))
 		r.Group("/conan", func() {
 			r.Group("/v1", func() {
@@ -183,14 +199,14 @@ func CommonRoutes() *web.Route {
 						r.Delete("", reqPackageAccess(perm.AccessModeWrite), conan.DeleteRecipeV1)
 						r.Get("/search", conan.SearchPackagesV1)
 						r.Get("/digest", conan.RecipeDownloadURLs)
-						r.Post("/upload_urls", reqPackageAccess(perm.AccessModeWrite), conan.RecipeUploadURLs)
+						r.Post("/upload_urls", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), conan.RecipeUploadURLs)
 						r.Get("/download_urls", conan.RecipeDownloadURLs)
 						r.Group("/packages", func() {
 							r.Post("/delete", reqPackageAccess(perm.AccessModeWrite), conan.DeletePackageV1)
 							r.Group("/{package_reference}", func() {
 								r.Get("", conan.PackageSnapshot)
 								r.Get("/digest", conan.PackageDownloadURLs)
-								r.Post("/upload_urls", reqPackageAccess(perm.AccessModeWrite), conan.PackageUploadURLs)
+								r.Post("/upload_urls", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), conan.PackageUploadURLs)
 								r.Get("/download_urls", conan.PackageDownloadURLs)
 							})
 						})
@@ -199,11 +215,11 @@ func CommonRoutes() *web.Route {
 				r.Group("/files/{name}/{version}/{user}/{channel}/{recipe_revision}", func() {
 					r.Group("/recipe/{filename}", func() {
 						r.Get("", conan.DownloadRecipeFile)
-						r.Put("", reqPackageAccess(perm.AccessModeWrite), conan.UploadRecipeFile)
+						r.Put("", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), conan.UploadRecipeFile)
 					})
 					r.Group("/package/{package_reference}/{package_revision}/{filename}", func() {
 						r.Get("", conan.DownloadPackageFile)
-						r.Put("", reqPackageAccess(perm.AccessModeWrite), conan.UploadPackageFile)
+						r.Put("", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), conan.UploadPackageFile)
 					})
 				}, conan.ExtractPathParameters)
 			})
@@ -228,7 +244,7 @@ func CommonRoutes() *web.Route {
 									r.Get("", conan.ListRecipeRevisionFiles)
 									r.Group("/{filename}", func() {
 										r.Get("", conan.DownloadRecipeFile)
-										r.Put("", reqPackageAccess(perm.AccessModeWrite), conan.UploadRecipeFile)
+										r.Put("", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), conan.UploadRecipeFile)
 									})
 								})
 								r.Group("/packages", func() {
@@ -244,7 +260,7 @@ func CommonRoutes() *web.Route {
 													r.Get("", conan.ListPackageRevisionFiles)
 													r.Group("/{filename}", func() {
 														r.Get("", conan.DownloadPackageFile)
-														r.Put("", reqPackageAccess(perm.AccessModeWrite), conan.UploadPackageFile)
+														r.Put("", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), conan.UploadPackageFile)
 													})
 												})
 											})
@@ -281,7 +297,7 @@ func CommonRoutes() *web.Route {
 					conda.DownloadPackageFile(ctx)
 				}
 			})
-			r.Put("/*", reqPackageAccess(perm.AccessModeWrite), func(ctx *context.Context) {
+			r.Put("/*", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), func(ctx *context.Context) {
 				m := uploadPattern.FindStringSubmatch(ctx.Params("*"))
 				if len(m) == 0 {
 					ctx.Status(http.StatusNotFound)
@@ -301,7 +317,7 @@ func CommonRoutes() *web.Route {
 					r.Get("/PACKAGES{format}", cran.EnumerateSourcePackages)
 					r.Get("/{filename}", cran.DownloadSourcePackageFile)
 				})
-				r.Put("", reqPackageAccess(perm.AccessModeWrite), cran.UploadSourcePackageFile)
+				r.Put("", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), cran.UploadSourcePackageFile)
 			})
 			r.Group("/bin", func() {
 				r.Group("/{platform}/contrib/{rversion}", func() {
@@ -309,7 +325,7 @@ func CommonRoutes() *web.Route {
 					r.Get("/PACKAGES{format}", cran.EnumerateBinaryPackages)
 					r.Get("/{filename}", cran.DownloadBinaryPackageFile)
 				})
-				r.Put("", reqPackageAccess(perm.AccessModeWrite), cran.UploadBinaryPackageFile)
+				r.Put("", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), cran.UploadBinaryPackageFile)
 			})
 		}, reqPackageAccess(perm.AccessModeRead))
 		r.Group("/debian", func() {
@@ -325,13 +341,13 @@ func CommonRoutes() *web.Route {
 			r.Group("/pool/{distribution}/{component}", func() {
 				r.Get("/{name}_{version}_{architecture}.deb", debian.DownloadPackageFile)
 				r.Group("", func() {
-					r.Put("/upload", debian.UploadPackageFile)
+					r.Put("/upload", enforcePackagesQuota(), debian.UploadPackageFile)
 					r.Delete("/{name}/{version}/{architecture}", debian.DeletePackageFile)
 				}, reqPackageAccess(perm.AccessModeWrite))
 			})
 		}, reqPackageAccess(perm.AccessModeRead))
 		r.Group("/go", func() {
-			r.Put("/upload", reqPackageAccess(perm.AccessModeWrite), goproxy.UploadPackage)
+			r.Put("/upload", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), goproxy.UploadPackage)
 			r.Get("/sumdb/sum.golang.org/supported", func(ctx *context.Context) {
 				ctx.Status(http.StatusNotFound)
 			})
@@ -394,7 +410,7 @@ func CommonRoutes() *web.Route {
 				r.Group("/{filename}", func() {
 					r.Get("", generic.DownloadPackageFile)
 					r.Group("", func() {
-						r.Put("", generic.UploadPackage)
+						r.Put("", enforcePackagesQuota(), generic.UploadPackage)
 						r.Delete("", generic.DeletePackageFile)
 					}, reqPackageAccess(perm.AccessModeWrite))
 				})
@@ -403,10 +419,10 @@ func CommonRoutes() *web.Route {
 		r.Group("/helm", func() {
 			r.Get("/index.yaml", helm.Index)
 			r.Get("/{filename}", helm.DownloadPackageFile)
-			r.Post("/api/charts", reqPackageAccess(perm.AccessModeWrite), helm.UploadPackage)
+			r.Post("/api/charts", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), helm.UploadPackage)
 		}, reqPackageAccess(perm.AccessModeRead))
 		r.Group("/maven", func() {
-			r.Put("/*", reqPackageAccess(perm.AccessModeWrite), maven.UploadPackageFile)
+			r.Put("/*", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), maven.UploadPackageFile)
 			r.Get("/*", maven.DownloadPackageFile)
 			r.Head("/*", maven.ProvidePackageFileHeader)
 		}, reqPackageAccess(perm.AccessModeRead))
@@ -427,8 +443,8 @@ func CommonRoutes() *web.Route {
 					r.Get("/{version}/{filename}", nuget.DownloadPackageFile)
 				})
 				r.Group("", func() {
-					r.Put("/", nuget.UploadPackage)
+					r.Put("/", enforcePackagesQuota(), nuget.UploadPackage)
-					r.Put("/symbolpackage", nuget.UploadSymbolPackage)
+					r.Put("/symbolpackage", enforcePackagesQuota(), nuget.UploadSymbolPackage)
 					r.Delete("/{id}/{version}", nuget.DeletePackage)
 				}, reqPackageAccess(perm.AccessModeWrite))
 				r.Get("/symbols/{filename}/{guid:[0-9a-fA-F]{32}[fF]{8}}/{filename2}", nuget.DownloadSymbolFile)
@@ -450,7 +466,7 @@ func CommonRoutes() *web.Route {
 		r.Group("/npm", func() {
 			r.Group("/@{scope}/{id}", func() {
 				r.Get("", npm.PackageMetadata)
-				r.Put("", reqPackageAccess(perm.AccessModeWrite), npm.UploadPackage)
+				r.Put("", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), npm.UploadPackage)
 				r.Group("/-/{version}/{filename}", func() {
 					r.Get("", npm.DownloadPackageFile)
 					r.Delete("/-rev/{revision}", reqPackageAccess(perm.AccessModeWrite), npm.DeletePackageVersion)
@@ -463,7 +479,7 @@ func CommonRoutes() *web.Route {
 			})
 			r.Group("/{id}", func() {
 				r.Get("", npm.PackageMetadata)
-				r.Put("", reqPackageAccess(perm.AccessModeWrite), npm.UploadPackage)
+				r.Put("", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), npm.UploadPackage)
 				r.Group("/-/{version}/{filename}", func() {
 					r.Get("", npm.DownloadPackageFile)
 					r.Delete("/-rev/{revision}", reqPackageAccess(perm.AccessModeWrite), npm.DeletePackageVersion)
@@ -496,7 +512,7 @@ func CommonRoutes() *web.Route {
 			r.Group("/api/packages", func() {
 				r.Group("/versions/new", func() {
 					r.Get("", pub.RequestUpload)
-					r.Post("/upload", pub.UploadPackageFile)
+					r.Post("/upload", enforcePackagesQuota(), pub.UploadPackageFile)
 					r.Get("/finalize/{id}/{version}", pub.FinalizePackage)
 				}, reqPackageAccess(perm.AccessModeWrite))
 				r.Group("/{id}", func() {
@@ -507,7 +523,7 @@ func CommonRoutes() *web.Route {
 			})
 		}, reqPackageAccess(perm.AccessModeRead))
 		r.Group("/pypi", func() {
-			r.Post("/", reqPackageAccess(perm.AccessModeWrite), pypi.UploadPackageFile)
+			r.Post("/", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), pypi.UploadPackageFile)
 			r.Get("/files/{id}/{version}/{filename}", pypi.DownloadPackageFile)
 			r.Get("/simple/{id}", pypi.PackageMetadata)
 		}, reqPackageAccess(perm.AccessModeRead))
@@ -556,6 +572,10 @@ func CommonRoutes() *web.Route {
 					if ctx.Written() {
 						return
 					}
+					enforcePackagesQuota()(ctx)
+					if ctx.Written() {
+						return
+					}
 					ctx.SetParams("group", strings.Trim(m[1], "/"))
 					rpm.UploadPackageFile(ctx)
 					return
@@ -591,7 +611,7 @@ func CommonRoutes() *web.Route {
 			r.Get("/quick/Marshal.4.8/{filename}", rubygems.ServePackageSpecification)
 			r.Get("/gems/{filename}", rubygems.DownloadPackageFile)
 			r.Group("/api/v1/gems", func() {
-				r.Post("/", rubygems.UploadPackageFile)
+				r.Post("/", enforcePackagesQuota(), rubygems.UploadPackageFile)
 				r.Delete("/yank", rubygems.DeletePackage)
 			}, reqPackageAccess(perm.AccessModeWrite))
 		}, reqPackageAccess(perm.AccessModeRead))
@@ -603,7 +623,7 @@ func CommonRoutes() *web.Route {
 				}, swift.CheckAcceptMediaType(swift.AcceptJSON))
 				r.Group("/{version}", func() {
 					r.Get("/Package.swift", swift.CheckAcceptMediaType(swift.AcceptSwift), swift.DownloadManifest)
-					r.Put("", reqPackageAccess(perm.AccessModeWrite), swift.CheckAcceptMediaType(swift.AcceptJSON), swift.UploadPackageFile)
+					r.Put("", reqPackageAccess(perm.AccessModeWrite), swift.CheckAcceptMediaType(swift.AcceptJSON), enforcePackagesQuota(), swift.UploadPackageFile)
 					r.Get("", func(ctx *context.Context) {
 						// Can't use normal routes here: https://github.com/go-chi/chi/issues/781
 
@@ -639,7 +659,7 @@ func CommonRoutes() *web.Route {
 				r.Get("", vagrant.EnumeratePackageVersions)
 				r.Group("/{version}/{provider}", func() {
 					r.Get("", vagrant.DownloadPackageFile)
-					r.Put("", reqPackageAccess(perm.AccessModeWrite), vagrant.UploadPackageFile)
+					r.Put("", reqPackageAccess(perm.AccessModeWrite), enforcePackagesQuota(), vagrant.UploadPackageFile)
 				})
 			})
 		}, reqPackageAccess(perm.AccessModeRead))

routers/api/v1/api.go

@@ -77,6 +77,7 @@ import (
 	"code.gitea.io/gitea/models/organization"
 	"code.gitea.io/gitea/models/perm"
 	access_model "code.gitea.io/gitea/models/perm/access"
+	quota_model "code.gitea.io/gitea/models/quota"
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/models/unit"
 	user_model "code.gitea.io/gitea/models/user"
@@ -973,7 +974,7 @@ func Routes() *web.Route {
 
 			// (repo scope)
 			m.Combo("/repos", tokenRequiresScopes(auth_model.AccessTokenScopeCategoryRepository)).Get(user.ListMyRepos).
-				Post(bind(api.CreateRepoOption{}), repo.Create)
+				Post(bind(api.CreateRepoOption{}), context.EnforceQuotaAPI(quota_model.LimitSubjectSizeReposAll, context.QuotaTargetUser), repo.Create)
 
 			// (repo scope)
 			if !setting.Repository.DisableStars {
@@ -1104,7 +1105,7 @@ func Routes() *web.Route {
 					m.Get("", repo.ListBranches)
 					m.Get("/*", repo.GetBranch)
 					m.Delete("/*", reqToken(), reqRepoWriter(unit.TypeCode), mustNotBeArchived, repo.DeleteBranch)
-					m.Post("", reqToken(), reqRepoWriter(unit.TypeCode), mustNotBeArchived, bind(api.CreateBranchRepoOption{}), repo.CreateBranch)
+					m.Post("", reqToken(), reqRepoWriter(unit.TypeCode), mustNotBeArchived, bind(api.CreateBranchRepoOption{}), context.EnforceQuotaAPI(quota_model.LimitSubjectSizeGitAll, context.QuotaTargetRepo), repo.CreateBranch)
 				}, context.ReferencesGitRepo(), reqRepoReader(unit.TypeCode))
 				m.Group("/branch_protections", func() {
 					m.Get("", repo.ListBranchProtections)
@@ -1118,7 +1119,7 @@ func Routes() *web.Route {
 				m.Group("/tags", func() {
 					m.Get("", repo.ListTags)
 					m.Get("/*", repo.GetTag)
-					m.Post("", reqToken(), reqRepoWriter(unit.TypeCode), mustNotBeArchived, bind(api.CreateTagOption{}), repo.CreateTag)
+					m.Post("", reqToken(), reqRepoWriter(unit.TypeCode), mustNotBeArchived, bind(api.CreateTagOption{}), context.EnforceQuotaAPI(quota_model.LimitSubjectSizeReposAll, context.QuotaTargetRepo), repo.CreateTag)
 					m.Delete("/*", reqToken(), reqRepoWriter(unit.TypeCode), mustNotBeArchived, repo.DeleteTag)
 				}, reqRepoReader(unit.TypeCode), context.ReferencesGitRepo(true))
 				m.Group("/tag_protections", func() {
@@ -1152,10 +1153,10 @@ func Routes() *web.Route {
 				m.Group("/wiki", func() {
 					m.Combo("/page/{pageName}").
 						Get(repo.GetWikiPage).
-						Patch(mustNotBeArchived, reqToken(), reqRepoWriter(unit.TypeWiki), bind(api.CreateWikiPageOptions{}), repo.EditWikiPage).
+						Patch(mustNotBeArchived, reqToken(), reqRepoWriter(unit.TypeWiki), bind(api.CreateWikiPageOptions{}), context.EnforceQuotaAPI(quota_model.LimitSubjectSizeWiki, context.QuotaTargetRepo), repo.EditWikiPage).
 						Delete(mustNotBeArchived, reqToken(), reqRepoWriter(unit.TypeWiki), repo.DeleteWikiPage)
 					m.Get("/revisions/{pageName}", repo.ListPageRevisions)
-					m.Post("/new", reqToken(), mustNotBeArchived, reqRepoWriter(unit.TypeWiki), bind(api.CreateWikiPageOptions{}), repo.NewWikiPage)
+					m.Post("/new", reqToken(), mustNotBeArchived, reqRepoWriter(unit.TypeWiki), bind(api.CreateWikiPageOptions{}), context.EnforceQuotaAPI(quota_model.LimitSubjectSizeWiki, context.QuotaTargetRepo), repo.NewWikiPage)
 					m.Get("/pages", repo.ListWikiPages)
 				}, mustEnableWiki)
 				m.Post("/markup", reqToken(), bind(api.MarkupOption{}), misc.Markup)
@@ -1172,15 +1173,15 @@ func Routes() *web.Route {
 				}, reqToken())
 				m.Group("/releases", func() {
 					m.Combo("").Get(repo.ListReleases).
-						Post(reqToken(), reqRepoWriter(unit.TypeReleases), context.ReferencesGitRepo(), bind(api.CreateReleaseOption{}), repo.CreateRelease)
+						Post(reqToken(), reqRepoWriter(unit.TypeReleases), context.ReferencesGitRepo(), bind(api.CreateReleaseOption{}), context.EnforceQuotaAPI(quota_model.LimitSubjectSizeReposAll, context.QuotaTargetRepo), repo.CreateRelease)
 					m.Combo("/latest").Get(repo.GetLatestRelease)
 					m.Group("/{id}", func() {
 						m.Combo("").Get(repo.GetRelease).
-							Patch(reqToken(), reqRepoWriter(unit.TypeReleases), context.ReferencesGitRepo(), bind(api.EditReleaseOption{}), repo.EditRelease).
+							Patch(reqToken(), reqRepoWriter(unit.TypeReleases), context.ReferencesGitRepo(), bind(api.EditReleaseOption{}), context.EnforceQuotaAPI(quota_model.LimitSubjectSizeReposAll, context.QuotaTargetRepo), repo.EditRelease).
 							Delete(reqToken(), reqRepoWriter(unit.TypeReleases), repo.DeleteRelease)
 						m.Group("/assets", func() {
 							m.Combo("").Get(repo.ListReleaseAttachments).
-								Post(reqToken(), reqRepoWriter(unit.TypeReleases), repo.CreateReleaseAttachment)
+								Post(reqToken(), reqRepoWriter(unit.TypeReleases), context.EnforceQuotaAPI(quota_model.LimitSubjectSizeAssetsAttachmentsReleases, context.QuotaTargetRepo), repo.CreateReleaseAttachment)
 							m.Combo("/{attachment_id}").Get(repo.GetReleaseAttachment).
 								Patch(reqToken(), reqRepoWriter(unit.TypeReleases), bind(api.EditAttachmentOptions{}), repo.EditReleaseAttachment).
 								Delete(reqToken(), reqRepoWriter(unit.TypeReleases), repo.DeleteReleaseAttachment)
@@ -1192,7 +1193,7 @@ func Routes() *web.Route {
 							Delete(reqToken(), reqRepoWriter(unit.TypeReleases), repo.DeleteReleaseByTag)
 					})
 				}, reqRepoReader(unit.TypeReleases))
-				m.Post("/mirror-sync", reqToken(), reqRepoWriter(unit.TypeCode), mustNotBeArchived, repo.MirrorSync)
+				m.Post("/mirror-sync", reqToken(), reqRepoWriter(unit.TypeCode), mustNotBeArchived, context.EnforceQuotaAPI(quota_model.LimitSubjectSizeGitAll, context.QuotaTargetRepo), repo.MirrorSync)
 				m.Post("/push_mirrors-sync", reqAdmin(), reqToken(), mustNotBeArchived, repo.PushMirrorSync)
 				m.Group("/push_mirrors", func() {
 					m.Combo("").Get(repo.ListPushMirrors).
@@ -1211,11 +1212,11 @@ func Routes() *web.Route {
 						m.Combo("").Get(repo.GetPullRequest).
 							Patch(reqToken(), bind(api.EditPullRequestOption{}), repo.EditPullRequest)
 						m.Get(".{diffType:diff|patch}", repo.DownloadPullDiffOrPatch)
-						m.Post("/update", reqToken(), repo.UpdatePullRequest)
+						m.Post("/update", reqToken(), context.EnforceQuotaAPI(quota_model.LimitSubjectSizeGitAll, context.QuotaTargetRepo), repo.UpdatePullRequest)
 						m.Get("/commits", repo.GetPullRequestCommits)
 						m.Get("/files", repo.GetPullRequestFiles)
 						m.Combo("/merge").Get(repo.IsPullRequestMerged).
-							Post(reqToken(), mustNotBeArchived, bind(forms.MergePullRequestForm{}), repo.MergePullRequest).
+							Post(reqToken(), mustNotBeArchived, bind(forms.MergePullRequestForm{}), context.EnforceQuotaAPI(quota_model.LimitSubjectSizeGitAll, context.QuotaTargetRepo), repo.MergePullRequest).
 							Delete(reqToken(), mustNotBeArchived, repo.CancelScheduledAutoMerge)
 						m.Group("/reviews", func() {
 							m.Combo("").
@@ -1270,15 +1271,15 @@ func Routes() *web.Route {
 					m.Get("/tags/{sha}", repo.GetAnnotatedTag)
 					m.Get("/notes/{sha}", repo.GetNote)
 				}, context.ReferencesGitRepo(true), reqRepoReader(unit.TypeCode))
-				m.Post("/diffpatch", reqRepoWriter(unit.TypeCode), reqToken(), bind(api.ApplyDiffPatchFileOptions{}), mustNotBeArchived, repo.ApplyDiffPatch)
+				m.Post("/diffpatch", reqRepoWriter(unit.TypeCode), reqToken(), bind(api.ApplyDiffPatchFileOptions{}), mustNotBeArchived, context.EnforceQuotaAPI(quota_model.LimitSubjectSizeReposAll, context.QuotaTargetRepo), repo.ApplyDiffPatch)
 				m.Group("/contents", func() {
 					m.Get("", repo.GetContentsList)
-					m.Post("", reqToken(), bind(api.ChangeFilesOptions{}), reqRepoBranchWriter, mustNotBeArchived, repo.ChangeFiles)
+					m.Post("", reqToken(), bind(api.ChangeFilesOptions{}), reqRepoBranchWriter, mustNotBeArchived, context.EnforceQuotaAPI(quota_model.LimitSubjectSizeReposAll, context.QuotaTargetRepo), repo.ChangeFiles)
 					m.Get("/*", repo.GetContents)
 					m.Group("/*", func() {
-						m.Post("", bind(api.CreateFileOptions{}), reqRepoBranchWriter, mustNotBeArchived, repo.CreateFile)
+						m.Post("", bind(api.CreateFileOptions{}), reqRepoBranchWriter, mustNotBeArchived, context.EnforceQuotaAPI(quota_model.LimitSubjectSizeReposAll, context.QuotaTargetRepo), repo.CreateFile)
-						m.Put("", bind(api.UpdateFileOptions{}), reqRepoBranchWriter, mustNotBeArchived, repo.UpdateFile)
+						m.Put("", bind(api.UpdateFileOptions{}), reqRepoBranchWriter, mustNotBeArchived, context.EnforceQuotaAPI(quota_model.LimitSubjectSizeReposAll, context.QuotaTargetRepo), repo.UpdateFile)
-						m.Delete("", bind(api.DeleteFileOptions{}), reqRepoBranchWriter, mustNotBeArchived, repo.DeleteFile)
+						m.Delete("", bind(api.DeleteFileOptions{}), reqRepoBranchWriter, mustNotBeArchived, context.EnforceQuotaAPI(quota_model.LimitSubjectSizeReposAll, context.QuotaTargetRepo), repo.DeleteFile)
 					}, reqToken())
 				}, reqRepoReader(unit.TypeCode))
 				m.Get("/signing-key.gpg", misc.SigningKey)
@@ -1335,7 +1336,7 @@ func Routes() *web.Route {
 							m.Group("/assets", func() {
 								m.Combo("").
 									Get(repo.ListIssueCommentAttachments).
-									Post(reqToken(), mustNotBeArchived, repo.CreateIssueCommentAttachment)
+									Post(reqToken(), mustNotBeArchived, context.EnforceQuotaAPI(quota_model.LimitSubjectSizeAssetsAttachmentsIssues, context.QuotaTargetRepo), repo.CreateIssueCommentAttachment)
 								m.Combo("/{attachment_id}").
 									Get(repo.GetIssueCommentAttachment).
 									Patch(reqToken(), mustNotBeArchived, bind(api.EditAttachmentOptions{}), repo.EditIssueCommentAttachment).
@@ -1387,7 +1388,7 @@ func Routes() *web.Route {
 						m.Group("/assets", func() {
 							m.Combo("").
 								Get(repo.ListIssueAttachments).
-								Post(reqToken(), mustNotBeArchived, repo.CreateIssueAttachment)
+								Post(reqToken(), mustNotBeArchived, context.EnforceQuotaAPI(quota_model.LimitSubjectSizeAssetsAttachmentsIssues, context.QuotaTargetRepo), repo.CreateIssueAttachment)
 							m.Combo("/{attachment_id}").
 								Get(repo.GetIssueAttachment).
 								Patch(reqToken(), mustNotBeArchived, bind(api.EditAttachmentOptions{}), repo.EditIssueAttachment).
@@ -1449,7 +1450,7 @@ func Routes() *web.Route {
 				Patch(reqToken(), reqOrgOwnership(), bind(api.EditOrgOption{}), org.Edit).
 				Delete(reqToken(), reqOrgOwnership(), org.Delete)
 			m.Combo("/repos").Get(user.ListOrgRepos).
-				Post(reqToken(), bind(api.CreateRepoOption{}), repo.CreateOrgRepo)
+				Post(reqToken(), bind(api.CreateRepoOption{}), context.EnforceQuotaAPI(quota_model.LimitSubjectSizeReposAll, context.QuotaTargetOrg), repo.CreateOrgRepo)
 			m.Group("/members", func() {
 				m.Get("", reqToken(), org.ListMembers)
 				m.Combo("/{username}").Get(reqToken(), org.IsMember).

routers/api/v1/repo/branch.go

@@ -210,6 +210,8 @@ func CreateBranch(ctx *context.APIContext) {
 	//     description: The old branch does not exist.
 	//   "409":
 	//     description: The branch with the same name already exists.
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "423":
 	//     "$ref": "#/responses/repoArchivedError"
 

routers/api/v1/repo/file.go

@@ -477,6 +477,8 @@ func ChangeFiles(ctx *context.APIContext) {
 	//     "$ref": "#/responses/error"
 	//   "404":
 	//     "$ref": "#/responses/notFound"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "422":
 	//     "$ref": "#/responses/error"
 	//   "423":
@@ -579,6 +581,8 @@ func CreateFile(ctx *context.APIContext) {
 	//     "$ref": "#/responses/error"
 	//   "404":
 	//     "$ref": "#/responses/notFound"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "422":
 	//     "$ref": "#/responses/error"
 	//   "423":
@@ -677,6 +681,8 @@ func UpdateFile(ctx *context.APIContext) {
 	//     "$ref": "#/responses/error"
 	//   "404":
 	//     "$ref": "#/responses/notFound"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "422":
 	//     "$ref": "#/responses/error"
 	//   "423":
@@ -842,6 +848,8 @@ func DeleteFile(ctx *context.APIContext) {
 	//     "$ref": "#/responses/error"
 	//   "404":
 	//     "$ref": "#/responses/error"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "423":
 	//     "$ref": "#/responses/repoArchivedError"
 

routers/api/v1/repo/fork.go

@@ -12,6 +12,7 @@ import (
 	"code.gitea.io/gitea/models/organization"
 	"code.gitea.io/gitea/models/perm"
 	access_model "code.gitea.io/gitea/models/perm/access"
+	quota_model "code.gitea.io/gitea/models/quota"
 	repo_model "code.gitea.io/gitea/models/repo"
 	user_model "code.gitea.io/gitea/models/user"
 	api "code.gitea.io/gitea/modules/structs"
@@ -105,6 +106,8 @@ func CreateFork(ctx *context.APIContext) {
 	//     "$ref": "#/responses/notFound"
 	//   "409":
 	//     description: The repository with the same name already exists.
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "422":
 	//     "$ref": "#/responses/validationError"
 
@@ -134,6 +137,10 @@ func CreateFork(ctx *context.APIContext) {
 		forker = org.AsUser()
 	}
 
+	if !ctx.CheckQuota(quota_model.LimitSubjectSizeReposAll, forker.ID, forker.Name) {
+		return
+	}
+
 	var name string
 	if form.Name == nil {
 		name = repo.Name

routers/api/v1/repo/issue_attachment.go

@@ -160,6 +160,8 @@ func CreateIssueAttachment(ctx *context.APIContext) {
 	//     "$ref": "#/responses/error"
 	//   "404":
 	//     "$ref": "#/responses/error"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "422":
 	//     "$ref": "#/responses/validationError"
 	//   "423":
@@ -269,6 +271,8 @@ func EditIssueAttachment(ctx *context.APIContext) {
 	//     "$ref": "#/responses/Attachment"
 	//   "404":
 	//     "$ref": "#/responses/error"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "423":
 	//     "$ref": "#/responses/repoArchivedError"
 

routers/api/v1/repo/issue_comment_attachment.go

@@ -157,6 +157,8 @@ func CreateIssueCommentAttachment(ctx *context.APIContext) {
 	//     "$ref": "#/responses/error"
 	//   "404":
 	//     "$ref": "#/responses/error"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "422":
 	//     "$ref": "#/responses/validationError"
 	//   "423":
@@ -274,6 +276,8 @@ func EditIssueCommentAttachment(ctx *context.APIContext) {
 	//     "$ref": "#/responses/Attachment"
 	//   "404":
 	//     "$ref": "#/responses/error"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "423":
 	//     "$ref": "#/responses/repoArchivedError"
 	attach := getIssueCommentAttachmentSafeWrite(ctx)

routers/api/v1/repo/migrate.go

@@ -15,6 +15,7 @@ import (
 	"code.gitea.io/gitea/models/organization"
 	"code.gitea.io/gitea/models/perm"
 	access_model "code.gitea.io/gitea/models/perm/access"
+	quota_model "code.gitea.io/gitea/models/quota"
 	repo_model "code.gitea.io/gitea/models/repo"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/graceful"
@@ -54,6 +55,8 @@ func Migrate(ctx *context.APIContext) {
 	//     "$ref": "#/responses/forbidden"
 	//   "409":
 	//     description: The repository with the same name already exists.
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "422":
 	//     "$ref": "#/responses/validationError"
 
@@ -85,6 +88,10 @@ func Migrate(ctx *context.APIContext) {
 		return
 	}
 
+	if !ctx.CheckQuota(quota_model.LimitSubjectSizeReposAll, repoOwner.ID, repoOwner.Name) {
+		return
+	}
+
 	if !ctx.Doer.IsAdmin {
 		if !repoOwner.IsOrganization() && ctx.Doer.ID != repoOwner.ID {
 			ctx.Error(http.StatusForbidden, "", "Given user is not an organization.")

routers/api/v1/repo/mirror.go

@@ -50,6 +50,8 @@ func MirrorSync(ctx *context.APIContext) {
 	//     "$ref": "#/responses/forbidden"
 	//   "404":
 	//     "$ref": "#/responses/notFound"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 
 	repo := ctx.Repo.Repository
 
@@ -103,6 +105,8 @@ func PushMirrorSync(ctx *context.APIContext) {
 	//     "$ref": "#/responses/forbidden"
 	//   "404":
 	//     "$ref": "#/responses/notFound"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 
 	if !setting.Mirror.Enabled {
 		ctx.Error(http.StatusBadRequest, "PushMirrorSync", "Mirror feature is disabled")
@@ -279,6 +283,8 @@ func AddPushMirror(ctx *context.APIContext) {
 	//     "$ref": "#/responses/error"
 	//   "404":
 	//     "$ref": "#/responses/notFound"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 
 	if !setting.Mirror.Enabled {
 		ctx.Error(http.StatusBadRequest, "AddPushMirror", "Mirror feature is disabled")

routers/api/v1/repo/patch.go

@@ -47,6 +47,8 @@ func ApplyDiffPatch(ctx *context.APIContext) {
 	//     "$ref": "#/responses/FileResponse"
 	//   "404":
 	//     "$ref": "#/responses/notFound"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "423":
 	//     "$ref": "#/responses/repoArchivedError"
 	apiOpts := web.GetForm(ctx).(*api.ApplyDiffPatchFileOptions)

routers/api/v1/repo/pull.go

@@ -387,6 +387,8 @@ func CreatePullRequest(ctx *context.APIContext) {
 	//     "$ref": "#/responses/notFound"
 	//   "409":
 	//     "$ref": "#/responses/error"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "422":
 	//     "$ref": "#/responses/validationError"
 	//   "423":
@@ -857,6 +859,8 @@ func MergePullRequest(ctx *context.APIContext) {
 	//     "$ref": "#/responses/empty"
 	//   "409":
 	//     "$ref": "#/responses/error"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "423":
 	//     "$ref": "#/responses/repoArchivedError"
 
@@ -1218,6 +1222,8 @@ func UpdatePullRequest(ctx *context.APIContext) {
 	//     "$ref": "#/responses/notFound"
 	//   "409":
 	//     "$ref": "#/responses/error"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "422":
 	//     "$ref": "#/responses/validationError"
 

routers/api/v1/repo/release_attachment.go

@@ -201,6 +201,8 @@ func CreateReleaseAttachment(ctx *context.APIContext) {
 	//     "$ref": "#/responses/error"
 	//   "404":
 	//     "$ref": "#/responses/notFound"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 
 	// Check if attachments are enabled
 	if !setting.Attachment.Enabled {
@@ -348,6 +350,8 @@ func EditReleaseAttachment(ctx *context.APIContext) {
 	//     "$ref": "#/responses/Attachment"
 	//   "404":
 	//     "$ref": "#/responses/notFound"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 
 	form := web.GetForm(ctx).(*api.EditAttachmentOptions)
 

routers/api/v1/repo/repo.go

@@ -17,6 +17,7 @@ import (
 	"code.gitea.io/gitea/models/organization"
 	"code.gitea.io/gitea/models/perm"
 	access_model "code.gitea.io/gitea/models/perm/access"
+	quota_model "code.gitea.io/gitea/models/quota"
 	repo_model "code.gitea.io/gitea/models/repo"
 	unit_model "code.gitea.io/gitea/models/unit"
 	user_model "code.gitea.io/gitea/models/user"
@@ -302,6 +303,8 @@ func Create(ctx *context.APIContext) {
 	//     "$ref": "#/responses/error"
 	//   "409":
 	//     description: The repository with the same name already exists.
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "422":
 	//     "$ref": "#/responses/validationError"
 	opt := web.GetForm(ctx).(*api.CreateRepoOption)
@@ -346,6 +349,8 @@ func Generate(ctx *context.APIContext) {
 	//     "$ref": "#/responses/notFound"
 	//   "409":
 	//     description: The repository with the same name already exists.
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "422":
 	//     "$ref": "#/responses/validationError"
 	form := web.GetForm(ctx).(*api.GenerateRepoOption)
@@ -412,6 +417,10 @@ func Generate(ctx *context.APIContext) {
 		}
 	}
 
+	if !ctx.CheckQuota(quota_model.LimitSubjectSizeReposAll, ctxUser.ID, ctxUser.Name) {
+		return
+	}
+
 	repo, err := repo_service.GenerateRepository(ctx, ctx.Doer, ctxUser, ctx.Repo.Repository, opts)
 	if err != nil {
 		if repo_model.IsErrRepoAlreadyExist(err) {

routers/api/v1/repo/tag.go

@@ -208,6 +208,8 @@ func CreateTag(ctx *context.APIContext) {
 	//     "$ref": "#/responses/empty"
 	//   "409":
 	//     "$ref": "#/responses/conflict"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "422":
 	//     "$ref": "#/responses/validationError"
 	//   "423":

routers/api/v1/repo/transfer.go

@@ -12,6 +12,7 @@ import (
 	"code.gitea.io/gitea/models/organization"
 	"code.gitea.io/gitea/models/perm"
 	access_model "code.gitea.io/gitea/models/perm/access"
+	quota_model "code.gitea.io/gitea/models/quota"
 	repo_model "code.gitea.io/gitea/models/repo"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/log"
@@ -53,6 +54,8 @@ func Transfer(ctx *context.APIContext) {
 	//     "$ref": "#/responses/forbidden"
 	//   "404":
 	//     "$ref": "#/responses/notFound"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "422":
 	//     "$ref": "#/responses/validationError"
 
@@ -76,6 +79,10 @@ func Transfer(ctx *context.APIContext) {
 		}
 	}
 
+	if !ctx.CheckQuota(quota_model.LimitSubjectSizeReposAll, newOwner.ID, newOwner.Name) {
+		return
+	}
+
 	var teams []*organization.Team
 	if opts.TeamIDs != nil {
 		if !newOwner.IsOrganization() {
@@ -162,6 +169,8 @@ func AcceptTransfer(ctx *context.APIContext) {
 	//     "$ref": "#/responses/forbidden"
 	//   "404":
 	//     "$ref": "#/responses/notFound"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 
 	err := acceptOrRejectRepoTransfer(ctx, true)
 	if ctx.Written() {
@@ -233,6 +242,11 @@ func acceptOrRejectRepoTransfer(ctx *context.APIContext, accept bool) error {
 	}
 
 	if accept {
+		recipient := repoTransfer.Recipient
+		if !ctx.CheckQuota(quota_model.LimitSubjectSizeReposAll, recipient.ID, recipient.Name) {
+			return nil
+		}
+
 		return repo_service.TransferOwnership(ctx, repoTransfer.Doer, repoTransfer.Recipient, ctx.Repo.Repository, repoTransfer.Teams)
 	}
 

routers/api/v1/repo/wiki.go

@@ -53,6 +53,8 @@ func NewWikiPage(ctx *context.APIContext) {
 	//     "$ref": "#/responses/forbidden"
 	//   "404":
 	//     "$ref": "#/responses/notFound"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "423":
 	//     "$ref": "#/responses/repoArchivedError"
 
@@ -131,6 +133,8 @@ func EditWikiPage(ctx *context.APIContext) {
 	//     "$ref": "#/responses/forbidden"
 	//   "404":
 	//     "$ref": "#/responses/notFound"
+	//   "413":
+	//     "$ref": "#/responses/quotaExceeded"
 	//   "423":
 	//     "$ref": "#/responses/repoArchivedError"
 

routers/private/hook_pre_receive.go

@@ -15,11 +15,13 @@ import (
 	issues_model "code.gitea.io/gitea/models/issues"
 	perm_model "code.gitea.io/gitea/models/perm"
 	access_model "code.gitea.io/gitea/models/perm/access"
+	quota_model "code.gitea.io/gitea/models/quota"
 	"code.gitea.io/gitea/models/unit"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/git"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/private"
+	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/web"
 	gitea_context "code.gitea.io/gitea/services/context"
 	pull_service "code.gitea.io/gitea/services/pull"
@@ -47,6 +49,8 @@ type preReceiveContext struct {
 
 	opts *private.HookOptions
 
+	isOverQuota bool
+
 	branchName string
 }
 
@@ -140,6 +144,36 @@ func (ctx *preReceiveContext) assertPushOptions() bool {
 	return true
 }
 
+func (ctx *preReceiveContext) checkQuota() error {
+	if !setting.Quota.Enabled {
+		ctx.isOverQuota = false
+		return nil
+	}
+
+	if !ctx.loadPusherAndPermission() {
+		ctx.isOverQuota = true
+		return nil
+	}
+
+	ok, err := quota_model.EvaluateForUser(ctx, ctx.PrivateContext.Repo.Repository.OwnerID, quota_model.LimitSubjectSizeReposAll)
+	if err != nil {
+		log.Error("quota_model.EvaluateForUser: %v", err)
+		ctx.JSON(http.StatusInternalServerError, private.Response{
+			UserMsg: "Error checking user quota",
+		})
+		return err
+	}
+
+	ctx.isOverQuota = !ok
+	return nil
+}
+
+func (ctx *preReceiveContext) quotaExceeded() {
+	ctx.JSON(http.StatusRequestEntityTooLarge, private.Response{
+		UserMsg: "Quota exceeded",
+	})
+}
+
 // HookPreReceive checks whether a individual commit is acceptable
 func HookPreReceive(ctx *gitea_context.PrivateContext) {
 	opts := web.GetForm(ctx).(*private.HookOptions)
@@ -156,6 +190,10 @@ func HookPreReceive(ctx *gitea_context.PrivateContext) {
 	}
 	log.Trace("Git push options validation succeeded")
 
+	if err := ourCtx.checkQuota(); err != nil {
+		return
+	}
+
 	// Iterate across the provided old commit IDs
 	for i := range opts.OldCommitIDs {
 		oldCommitID := opts.OldCommitIDs[i]
@@ -170,6 +208,10 @@ func HookPreReceive(ctx *gitea_context.PrivateContext) {
 		case git.SupportProcReceive && refFullName.IsFor():
 			preReceiveFor(ourCtx, oldCommitID, newCommitID, refFullName)
 		default:
+			if ourCtx.isOverQuota {
+				ourCtx.quotaExceeded()
+				return
+			}
 			ourCtx.AssertCanWriteCode()
 		}
 		if ctx.Written() {
@@ -211,6 +253,11 @@ func preReceiveBranch(ctx *preReceiveContext, oldCommitID, newCommitID string, r
 
 	// Allow pushes to non-protected branches
 	if protectBranch == nil {
+		// ...unless the user is over quota, and the operation is not a delete
+		if newCommitID != objectFormat.EmptyObjectID().String() && ctx.isOverQuota {
+			ctx.quotaExceeded()
+		}
+
 		return
 	}
 	protectBranch.Repo = repo
@@ -452,6 +499,15 @@ func preReceiveTag(ctx *preReceiveContext, oldCommitID, newCommitID string, refF
 		})
 		return
 	}
+
+	// If the user is over quota, and the push isn't a tag deletion, deny it
+	if ctx.isOverQuota {
+		objectFormat := ctx.Repo.GetObjectFormat()
+		if newCommitID != objectFormat.EmptyObjectID().String() {
+			ctx.quotaExceeded()
+			return
+		}
+	}
 }
 
 func preReceiveFor(ctx *preReceiveContext, oldCommitID, newCommitID string, refFullName git.RefName) { //nolint:unparam

routers/web/repo/migrate.go

@@ -12,6 +12,7 @@ import (
 	"code.gitea.io/gitea/models"
 	admin_model "code.gitea.io/gitea/models/admin"
 	"code.gitea.io/gitea/models/db"
+	quota_model "code.gitea.io/gitea/models/quota"
 	repo_model "code.gitea.io/gitea/models/repo"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/base"
@@ -170,6 +171,10 @@ func MigratePost(ctx *context.Context) {
 
 	tpl := base.TplName("repo/migrate/" + form.Service.Name())
 
+	if !ctx.CheckQuota(quota_model.LimitSubjectSizeReposAll, ctxUser.ID, ctxUser.Name) {
+		return
+	}
+
 	if ctx.HasError() {
 		ctx.HTML(http.StatusOK, tpl)
 		return
@@ -260,6 +265,25 @@ func setMigrationContextData(ctx *context.Context, serviceType structs.GitServic
 }
 
 func MigrateRetryPost(ctx *context.Context) {
+	ok, err := quota_model.EvaluateForUser(ctx, ctx.Repo.Repository.OwnerID, quota_model.LimitSubjectSizeReposAll)
+	if err != nil {
+		log.Error("quota_model.EvaluateForUser: %v", err)
+		ctx.ServerError("quota_model.EvaluateForUser", err)
+		return
+	}
+	if !ok {
+		if err := task.SetMigrateTaskMessage(ctx, ctx.Repo.Repository.ID, ctx.Locale.TrString("repo.settings.pull_mirror_sync_quota_exceeded")); err != nil {
+			log.Error("SetMigrateTaskMessage failed: %v", err)
+			ctx.ServerError("task.SetMigrateTaskMessage", err)
+			return
+		}
+		ctx.JSON(http.StatusRequestEntityTooLarge, map[string]any{
+			"ok":    false,
+			"error": ctx.Tr("repo.settings.pull_mirror_sync_quota_exceeded"),
+		})
+		return
+	}
+
 	if err := task.RetryMigrateTask(ctx, ctx.Repo.Repository.ID); err != nil {
 		log.Error("Retry task failed: %v", err)
 		ctx.ServerError("task.RetryMigrateTask", err)

routers/web/repo/pull.go

@@ -24,6 +24,7 @@ import (
 	"code.gitea.io/gitea/models/organization"
 	access_model "code.gitea.io/gitea/models/perm/access"
 	pull_model "code.gitea.io/gitea/models/pull"
+	quota_model "code.gitea.io/gitea/models/quota"
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/models/unit"
 	user_model "code.gitea.io/gitea/models/user"
@@ -250,6 +251,10 @@ func ForkPost(ctx *context.Context) {
 
 	ctx.Data["ContextUser"] = ctxUser
 
+	if !ctx.CheckQuota(quota_model.LimitSubjectSizeReposAll, ctxUser.ID, ctxUser.Name) {
+		return
+	}
+
 	if ctx.HasError() {
 		ctx.HTML(http.StatusOK, tplFork)
 		return

routers/web/repo/repo.go

@@ -17,6 +17,7 @@ import (
 	git_model "code.gitea.io/gitea/models/git"
 	"code.gitea.io/gitea/models/organization"
 	access_model "code.gitea.io/gitea/models/perm/access"
+	quota_model "code.gitea.io/gitea/models/quota"
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/models/unit"
 	user_model "code.gitea.io/gitea/models/user"
@@ -240,6 +241,10 @@ func CreatePost(ctx *context.Context) {
 	}
 	ctx.Data["ContextUser"] = ctxUser
 
+	if !ctx.CheckQuota(quota_model.LimitSubjectSizeReposAll, ctxUser.ID, ctxUser.Name) {
+		return
+	}
+
 	if ctx.HasError() {
 		ctx.HTML(http.StatusOK, tplCreate)
 		return
@@ -363,49 +368,56 @@ func ActionTransfer(accept bool) func(ctx *context.Context) {
 			action = "reject_transfer"
 		}
 
-		err := acceptOrRejectRepoTransfer(ctx, accept)
+		ok, err := acceptOrRejectRepoTransfer(ctx, accept)
 		if err != nil {
 			ctx.ServerError(fmt.Sprintf("Action (%s)", action), err)
 			return
 		}
+		if !ok {
+			return
+		}
 
 		ctx.RedirectToFirst(ctx.FormString("redirect_to"), ctx.Repo.RepoLink)
 	}
 }
 
-func acceptOrRejectRepoTransfer(ctx *context.Context, accept bool) error {
+func acceptOrRejectRepoTransfer(ctx *context.Context, accept bool) (bool, error) {
 	repoTransfer, err := models.GetPendingRepositoryTransfer(ctx, ctx.Repo.Repository)
 	if err != nil {
-		return err
+		return false, err
 	}
 
 	if err := repoTransfer.LoadAttributes(ctx); err != nil {
-		return err
+		return false, err
 	}
 
 	if !repoTransfer.CanUserAcceptTransfer(ctx, ctx.Doer) {
-		return errors.New("user does not have enough permissions")
+		return false, errors.New("user does not have enough permissions")
 	}
 
 	if accept {
+		if !ctx.CheckQuota(quota_model.LimitSubjectSizeReposAll, ctx.Doer.ID, ctx.Doer.Name) {
+			return false, nil
+		}
+
 		if ctx.Repo.GitRepo != nil {
 			ctx.Repo.GitRepo.Close()
 			ctx.Repo.GitRepo = nil
 		}
 
 		if err := repo_service.TransferOwnership(ctx, repoTransfer.Doer, repoTransfer.Recipient, ctx.Repo.Repository, repoTransfer.Teams); err != nil {
-			return err
+			return false, err
 		}
 		ctx.Flash.Success(ctx.Tr("repo.settings.transfer.success"))
 	} else {
 		if err := repo_service.CancelRepositoryTransfer(ctx, ctx.Repo.Repository); err != nil {
-			return err
+			return false, err
 		}
 		ctx.Flash.Success(ctx.Tr("repo.settings.transfer.rejected"))
 	}
 
 	ctx.Redirect(ctx.Repo.Repository.Link())
-	return nil
+	return true, nil
 }
 
 // RedirectDownload return a file based on the following infos:

routers/web/repo/setting/setting.go

@@ -17,6 +17,7 @@ import (
 	actions_model "code.gitea.io/gitea/models/actions"
 	"code.gitea.io/gitea/models/db"
 	"code.gitea.io/gitea/models/organization"
+	quota_model "code.gitea.io/gitea/models/quota"
 	repo_model "code.gitea.io/gitea/models/repo"
 	unit_model "code.gitea.io/gitea/models/unit"
 	user_model "code.gitea.io/gitea/models/user"
@@ -518,6 +519,20 @@ func SettingsPost(ctx *context.Context) {
 			return
 		}
 
+		ok, err := quota_model.EvaluateForUser(ctx, repo.OwnerID, quota_model.LimitSubjectSizeReposAll)
+		if err != nil {
+			ctx.ServerError("quota_model.EvaluateForUser", err)
+			return
+		}
+		if !ok {
+			// This section doesn't require repo_name/RepoName to be set in the form, don't show it
+			// as an error on the UI for this action
+			ctx.Data["Err_RepoName"] = nil
+
+			ctx.RenderWithErr(ctx.Tr("repo.settings.pull_mirror_sync_quota_exceeded"), tplSettingsOptions, &form)
+			return
+		}
+
 		mirror_service.AddPullMirrorToQueue(repo.ID)
 
 		ctx.Flash.Info(ctx.Tr("repo.settings.pull_mirror_sync_in_progress", repo.OriginalURL))
@@ -828,6 +843,17 @@ func SettingsPost(ctx *context.Context) {
 			}
 		}
 
+		// Check the quota of the new owner
+		ok, err := quota_model.EvaluateForUser(ctx, newOwner.ID, quota_model.LimitSubjectSizeReposAll)
+		if err != nil {
+			ctx.ServerError("quota_model.EvaluateForUser", err)
+			return
+		}
+		if !ok {
+			ctx.RenderWithErr(ctx.Tr("repo.settings.transfer_quota_exceeded", newOwner.Name), tplSettingsOptions, &form)
+			return
+		}
+
 		// Close the GitRepo if open
 		if ctx.Repo.GitRepo != nil {
 			ctx.Repo.GitRepo.Close()

routers/web/web.go

@@ -11,6 +11,7 @@ import (
 	auth_model "code.gitea.io/gitea/models/auth"
 	"code.gitea.io/gitea/models/db"
 	"code.gitea.io/gitea/models/perm"
+	quota_model "code.gitea.io/gitea/models/quota"
 	"code.gitea.io/gitea/models/unit"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/metrics"
@@ -1196,7 +1197,7 @@ func registerRoutes(m *web.Route) {
 			m.Post("/status", reqRepoIssuesOrPullsWriter, repo.UpdateIssueStatus)
 			m.Post("/delete", reqRepoAdmin, repo.BatchDeleteIssues)
 			m.Post("/resolve_conversation", reqRepoIssuesOrPullsReader, repo.SetShowOutdatedComments, repo.UpdateResolveConversation)
-			m.Post("/attachments", repo.UploadIssueAttachment)
+			m.Post("/attachments", context.EnforceQuotaWeb(quota_model.LimitSubjectSizeAssetsAttachmentsIssues, context.QuotaTargetRepo), repo.UploadIssueAttachment)
 			m.Post("/attachments/remove", repo.DeleteAttachment)
 			m.Delete("/unpin/{index}", reqRepoAdmin, repo.IssueUnpin)
 			m.Post("/move_pin", reqRepoAdmin, repo.IssuePinMove)
@@ -1244,9 +1245,9 @@ func registerRoutes(m *web.Route) {
 					Post(web.Bind(forms.EditRepoFileForm{}), repo.NewDiffPatchPost)
 				m.Combo("/_cherrypick/{sha:([a-f0-9]{4,64})}/*").Get(repo.CherryPick).
 					Post(web.Bind(forms.CherryPickForm{}), repo.CherryPickPost)
-			}, repo.MustBeEditable, repo.CommonEditorData)
+			}, repo.MustBeEditable, repo.CommonEditorData, context.EnforceQuotaWeb(quota_model.LimitSubjectSizeReposAll, context.QuotaTargetRepo))
 			m.Group("", func() {
-				m.Post("/upload-file", repo.UploadFileToServer)
+				m.Post("/upload-file", context.EnforceQuotaWeb(quota_model.LimitSubjectSizeReposAll, context.QuotaTargetRepo), repo.UploadFileToServer)
 				m.Post("/upload-remove", web.Bind(forms.RemoveUploadFileForm{}), repo.RemoveUploadFileFromServer)
 			}, repo.MustBeEditable, repo.MustBeAbleToUpload)
 		}, context.RepoRef(), canEnableEditor, context.RepoMustNotBeArchived())
@@ -1256,7 +1257,7 @@ func registerRoutes(m *web.Route) {
 				m.Post("/branch/*", context.RepoRefByType(context.RepoRefBranch), repo.CreateBranch)
 				m.Post("/tag/*", context.RepoRefByType(context.RepoRefTag), repo.CreateBranch)
 				m.Post("/commit/*", context.RepoRefByType(context.RepoRefCommit), repo.CreateBranch)
-			}, web.Bind(forms.NewBranchForm{}))
+			}, web.Bind(forms.NewBranchForm{}), context.EnforceQuotaWeb(quota_model.LimitSubjectSizeReposAll, context.QuotaTargetRepo))
 			m.Post("/delete", repo.DeleteBranchPost)
 			m.Post("/restore", repo.RestoreBranchPost)
 		}, context.RepoMustNotBeArchived(), reqRepoCodeWriter, repo.MustBeNotEmpty)
@@ -1288,16 +1289,17 @@ func registerRoutes(m *web.Route) {
 		m.Get("/releases/attachments/{uuid}", repo.MustBeNotEmpty, repo.GetAttachment)
 		m.Get("/releases/download/{vTag}/{fileName}", repo.MustBeNotEmpty, repo.RedirectDownload)
 		m.Group("/releases", func() {
-			m.Get("/new", repo.NewRelease)
+			m.Combo("/new", context.EnforceQuotaWeb(quota_model.LimitSubjectSizeReposAll, context.QuotaTargetRepo)).
-			m.Post("/new", web.Bind(forms.NewReleaseForm{}), repo.NewReleasePost)
+				Get(repo.NewRelease).
+				Post(web.Bind(forms.NewReleaseForm{}), repo.NewReleasePost)
 			m.Post("/delete", repo.DeleteRelease)
-			m.Post("/attachments", repo.UploadReleaseAttachment)
+			m.Post("/attachments", context.EnforceQuotaWeb(quota_model.LimitSubjectSizeAssetsAttachmentsReleases, context.QuotaTargetRepo), repo.UploadReleaseAttachment)
 			m.Post("/attachments/remove", repo.DeleteAttachment)
 		}, reqSignIn, repo.MustBeNotEmpty, context.RepoMustNotBeArchived(), reqRepoReleaseWriter, context.RepoRef())
 		m.Group("/releases", func() {
 			m.Get("/edit/*", repo.EditRelease)
 			m.Post("/edit/*", web.Bind(forms.EditReleaseForm{}), repo.EditReleasePost)
-		}, reqSignIn, repo.MustBeNotEmpty, context.RepoMustNotBeArchived(), reqRepoReleaseWriter, repo.CommitInfoCache)
+		}, reqSignIn, repo.MustBeNotEmpty, context.RepoMustNotBeArchived(), reqRepoReleaseWriter, repo.CommitInfoCache, context.EnforceQuotaWeb(quota_model.LimitSubjectSizeReposAll, context.QuotaTargetRepo))
 	}, ignSignIn, context.RepoAssignment, context.UnitTypes(), reqRepoReleaseReader)
 
 	// to maintain compatibility with old attachments
@@ -1410,10 +1412,10 @@ func registerRoutes(m *web.Route) {
 		m.Group("/wiki", func() {
 			m.Combo("/").
 				Get(repo.Wiki).
-				Post(context.RepoMustNotBeArchived(), reqSignIn, reqRepoWikiWriter, web.Bind(forms.NewWikiForm{}), repo.WikiPost)
+				Post(context.RepoMustNotBeArchived(), reqSignIn, reqRepoWikiWriter, web.Bind(forms.NewWikiForm{}), context.EnforceQuotaWeb(quota_model.LimitSubjectSizeWiki, context.QuotaTargetRepo), repo.WikiPost)
 			m.Combo("/*").
 				Get(repo.Wiki).
-				Post(context.RepoMustNotBeArchived(), reqSignIn, reqRepoWikiWriter, web.Bind(forms.NewWikiForm{}), repo.WikiPost)
+				Post(context.RepoMustNotBeArchived(), reqSignIn, reqRepoWikiWriter, web.Bind(forms.NewWikiForm{}), context.EnforceQuotaWeb(quota_model.LimitSubjectSizeWiki, context.QuotaTargetRepo), repo.WikiPost)
 			m.Get("/commit/{sha:[a-f0-9]{4,64}}", repo.SetEditorconfigIfExists, repo.SetDiffViewStyle, repo.SetWhitespaceBehavior, repo.Diff)
 			m.Get("/commit/{sha:[a-f0-9]{4,64}}.{ext:patch|diff}", repo.RawDiff)
 		}, repo.MustEnableWiki, func(ctx *context.Context) {
@@ -1490,7 +1492,7 @@ func registerRoutes(m *web.Route) {
 				m.Get("/list", context.RepoRef(), repo.GetPullCommits)
 				m.Get("/{sha:[a-f0-9]{4,40}}", context.RepoRef(), repo.SetEditorconfigIfExists, repo.SetDiffViewStyle, repo.SetWhitespaceBehavior, repo.SetShowOutdatedComments, repo.ViewPullFilesForSingleCommit)
 			})
-			m.Post("/merge", context.RepoMustNotBeArchived(), web.Bind(forms.MergePullRequestForm{}), repo.MergePullRequest)
+			m.Post("/merge", context.RepoMustNotBeArchived(), web.Bind(forms.MergePullRequestForm{}), context.EnforceQuotaWeb(quota_model.LimitSubjectSizeGitAll, context.QuotaTargetRepo), repo.MergePullRequest)
 			m.Post("/cancel_auto_merge", context.RepoMustNotBeArchived(), repo.CancelAutoMergePullRequest)
 			m.Post("/update", repo.UpdatePullRequest)
 			m.Post("/set_allow_maintainer_edit", web.Bind(forms.UpdateAllowEditsForm{}), repo.SetAllowEdits)

services/context/quota.go

@@ -4,11 +4,30 @@
 package context
 
 import (
+	"context"
 	"net/http"
+	"strings"
 
 	quota_model "code.gitea.io/gitea/models/quota"
+	"code.gitea.io/gitea/modules/base"
 )
 
+type QuotaTargetType int
+
+const (
+	QuotaTargetUser QuotaTargetType = iota
+	QuotaTargetRepo
+	QuotaTargetOrg
+)
+
+// QuotaExceeded
+// swagger:response quotaExceeded
+type APIQuotaExceeded struct {
+	Message  string `json:"message"`
+	UserID   int64  `json:"user_id"`
+	UserName string `json:"username,omitempty"`
+}
+
 // QuotaGroupAssignmentAPI returns a middleware to handle context-quota-group assignment for api routes
 func QuotaGroupAssignmentAPI() func(ctx *APIContext) {
 	return func(ctx *APIContext) {
@@ -42,3 +61,140 @@ func QuotaRuleAssignmentAPI() func(ctx *APIContext) {
 		ctx.QuotaRule = rule
 	}
 }
+
+// ctx.CheckQuota checks whether the user in question is within quota limits (web context)
+func (ctx *Context) CheckQuota(subject quota_model.LimitSubject, userID int64, username string) bool {
+	ok, err := checkQuota(ctx.Base.originCtx, subject, userID, username, func(userID int64, username string) {
+		showHTML := false
+		for _, part := range ctx.Req.Header["Accept"] {
+			if strings.Contains(part, "text/html") {
+				showHTML = true
+				break
+			}
+		}
+		if !showHTML {
+			ctx.plainTextInternal(3, http.StatusRequestEntityTooLarge, []byte("Quota exceeded.\n"))
+			return
+		}
+
+		ctx.Data["IsRepo"] = ctx.Repo.Repository != nil
+		ctx.Data["Title"] = "Quota Exceeded"
+		ctx.HTML(http.StatusRequestEntityTooLarge, base.TplName("status/413"))
+	}, func(err error) {
+		ctx.Error(http.StatusInternalServerError, "quota_model.EvaluateForUser")
+	})
+	if err != nil {
+		return false
+	}
+	return ok
+}
+
+// ctx.CheckQuota checks whether the user in question is within quota limits (API context)
+func (ctx *APIContext) CheckQuota(subject quota_model.LimitSubject, userID int64, username string) bool {
+	ok, err := checkQuota(ctx.Base.originCtx, subject, userID, username, func(userID int64, username string) {
+		ctx.JSON(http.StatusRequestEntityTooLarge, APIQuotaExceeded{
+			Message:  "quota exceeded",
+			UserID:   userID,
+			UserName: username,
+		})
+	}, func(err error) {
+		ctx.InternalServerError(err)
+	})
+	if err != nil {
+		return false
+	}
+	return ok
+}
+
+// EnforceQuotaWeb returns a middleware that enforces quota limits on the given web route.
+func EnforceQuotaWeb(subject quota_model.LimitSubject, target QuotaTargetType) func(ctx *Context) {
+	return func(ctx *Context) {
+		ctx.CheckQuota(subject, target.UserID(ctx), target.UserName(ctx))
+	}
+}
+
+// EnforceQuotaWeb returns a middleware that enforces quota limits on the given API route.
+func EnforceQuotaAPI(subject quota_model.LimitSubject, target QuotaTargetType) func(ctx *APIContext) {
+	return func(ctx *APIContext) {
+		ctx.CheckQuota(subject, target.UserID(ctx), target.UserName(ctx))
+	}
+}
+
+// checkQuota wraps quota checking into a single function
+func checkQuota(ctx context.Context, subject quota_model.LimitSubject, userID int64, username string, quotaExceededHandler func(userID int64, username string), errorHandler func(err error)) (bool, error) {
+	ok, err := quota_model.EvaluateForUser(ctx, userID, subject)
+	if err != nil {
+		errorHandler(err)
+		return false, err
+	}
+	if !ok {
+		quotaExceededHandler(userID, username)
+		return false, nil
+	}
+	return true, nil
+}
+
+type QuotaContext interface {
+	GetQuotaTargetUserID(target QuotaTargetType) int64
+	GetQuotaTargetUserName(target QuotaTargetType) string
+}
+
+func (ctx *Context) GetQuotaTargetUserID(target QuotaTargetType) int64 {
+	switch target {
+	case QuotaTargetUser:
+		return ctx.Doer.ID
+	case QuotaTargetRepo:
+		return ctx.Repo.Repository.OwnerID
+	case QuotaTargetOrg:
+		return ctx.Org.Organization.ID
+	default:
+		return 0
+	}
+}
+
+func (ctx *Context) GetQuotaTargetUserName(target QuotaTargetType) string {
+	switch target {
+	case QuotaTargetUser:
+		return ctx.Doer.Name
+	case QuotaTargetRepo:
+		return ctx.Repo.Repository.Owner.Name
+	case QuotaTargetOrg:
+		return ctx.Org.Organization.Name
+	default:
+		return ""
+	}
+}
+
+func (ctx *APIContext) GetQuotaTargetUserID(target QuotaTargetType) int64 {
+	switch target {
+	case QuotaTargetUser:
+		return ctx.Doer.ID
+	case QuotaTargetRepo:
+		return ctx.Repo.Repository.OwnerID
+	case QuotaTargetOrg:
+		return ctx.Org.Organization.ID
+	default:
+		return 0
+	}
+}
+
+func (ctx *APIContext) GetQuotaTargetUserName(target QuotaTargetType) string {
+	switch target {
+	case QuotaTargetUser:
+		return ctx.Doer.Name
+	case QuotaTargetRepo:
+		return ctx.Repo.Repository.Owner.Name
+	case QuotaTargetOrg:
+		return ctx.Org.Organization.Name
+	default:
+		return ""
+	}
+}
+
+func (target QuotaTargetType) UserID(ctx QuotaContext) int64 {
+	return ctx.GetQuotaTargetUserID(target)
+}
+
+func (target QuotaTargetType) UserName(ctx QuotaContext) string {
+	return ctx.GetQuotaTargetUserName(target)
+}

services/lfs/server.go

@@ -23,6 +23,7 @@ import (
 	git_model "code.gitea.io/gitea/models/git"
 	"code.gitea.io/gitea/models/perm"
 	access_model "code.gitea.io/gitea/models/perm/access"
+	quota_model "code.gitea.io/gitea/models/quota"
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/models/unit"
 	user_model "code.gitea.io/gitea/models/user"
@@ -179,6 +180,18 @@ func BatchHandler(ctx *context.Context) {
 		return
 	}
 
+	if isUpload {
+		ok, err := quota_model.EvaluateForUser(ctx, ctx.Doer.ID, quota_model.LimitSubjectSizeGitLFS)
+		if err != nil {
+			log.Error("quota_model.EvaluateForUser: %v", err)
+			writeStatus(ctx, http.StatusInternalServerError)
+			return
+		}
+		if !ok {
+			writeStatusMessage(ctx, http.StatusRequestEntityTooLarge, "quota exceeded")
+		}
+	}
+
 	contentStore := lfs_module.NewContentStore()
 
 	var responseObjects []*lfs_module.ObjectResponse
@@ -297,6 +310,18 @@ func UploadHandler(ctx *context.Context) {
 		return
 	}
 
+	if exists {
+		ok, err := quota_model.EvaluateForUser(ctx, ctx.Doer.ID, quota_model.LimitSubjectSizeGitLFS)
+		if err != nil {
+			log.Error("quota_model.EvaluateForUser: %v", err)
+			writeStatus(ctx, http.StatusInternalServerError)
+			return
+		}
+		if !ok {
+			writeStatusMessage(ctx, http.StatusRequestEntityTooLarge, "quota exceeded")
+		}
+	}
+
 	uploadOrVerify := func() error {
 		if exists {
 			accessible, err := git_model.LFSObjectAccessible(ctx, ctx.Doer, p.Oid)

services/mirror/mirror.go

@@ -7,6 +7,7 @@ import (
 	"context"
 	"fmt"
 
+	quota_model "code.gitea.io/gitea/models/quota"
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/modules/graceful"
 	"code.gitea.io/gitea/modules/log"
@@ -73,6 +74,19 @@ func Update(ctx context.Context, pullLimit, pushLimit int) error {
 		default:
 		}
 
+		// Check if the repo's owner is over quota, for pull mirrors
+		if mirrorType == PullMirrorType {
+			ok, err := quota_model.EvaluateForUser(ctx, repo.OwnerID, quota_model.LimitSubjectSizeReposAll)
+			if err != nil {
+				log.Error("quota_model.EvaluateForUser: %v", err)
+				return err
+			}
+			if !ok {
+				log.Trace("Owner quota exceeded for %-v, not syncing", repo)
+				return nil
+			}
+		}
+
 		// Push to the Queue
 		if err := PushToQueue(mirrorType, referenceID); err != nil {
 			if err == queue.ErrAlreadyInQueue {

services/task/task.go

@@ -152,3 +152,18 @@ func RetryMigrateTask(ctx context.Context, repoID int64) error {
 
 	return taskQueue.Push(migratingTask)
 }
+
+func SetMigrateTaskMessage(ctx context.Context, repoID int64, message string) error {
+	migratingTask, err := admin_model.GetMigratingTask(ctx, repoID)
+	if err != nil {
+		log.Error("GetMigratingTask: %v", err)
+		return err
+	}
+
+	migratingTask.Message = message
+	if err = migratingTask.UpdateCols(ctx, "message"); err != nil {
+		log.Error("task.UpdateCols failed: %v", err)
+		return err
+	}
+	return nil
+}

templates/status/413.tmpl

@@ -0,0 +1,11 @@
+{{template "base/head" .}}
+<div role="main" aria-label="{{.Title}}" class="page-content ui center tw-w-screen {{if .IsRepo}}repository{{end}}">
+	{{if .IsRepo}}{{template "repo/header" .}}{{end}}
+	<div class="ui container center">
+		<h1 style="margin-top: 100px" class="error-code">413</h1>
+		<p>{{ctx.Locale.Tr "error413"}}</p>
+		<div class="divider"></div>
+		<br>
+	</div>
+</div>
+{{template "base/footer" .}}

templates/swagger/v1_json.tmpl

@@ -4306,6 +4306,9 @@
           "409": {
             "description": "The repository with the same name already exists."
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "422": {
             "$ref": "#/responses/validationError"
           }
@@ -5612,6 +5615,9 @@
           "409": {
             "description": "The branch with the same name already exists."
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "423": {
             "$ref": "#/responses/repoArchivedError"
           }
@@ -6348,6 +6354,9 @@
           "404": {
             "$ref": "#/responses/notFound"
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "422": {
             "$ref": "#/responses/error"
           },
@@ -6458,6 +6467,9 @@
           "404": {
             "$ref": "#/responses/notFound"
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "422": {
             "$ref": "#/responses/error"
           },
@@ -6519,6 +6531,9 @@
           "404": {
             "$ref": "#/responses/notFound"
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "422": {
             "$ref": "#/responses/error"
           },
@@ -6583,6 +6598,9 @@
           "404": {
             "$ref": "#/responses/error"
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "423": {
             "$ref": "#/responses/repoArchivedError"
           }
@@ -6633,6 +6651,9 @@
           "404": {
             "$ref": "#/responses/notFound"
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "423": {
             "$ref": "#/responses/repoArchivedError"
           }
@@ -7034,6 +7055,9 @@
           "409": {
             "description": "The repository with the same name already exists."
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "422": {
             "$ref": "#/responses/validationError"
           }
@@ -8506,6 +8530,9 @@
           "404": {
             "$ref": "#/responses/error"
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "422": {
             "$ref": "#/responses/validationError"
           },
@@ -8677,6 +8704,9 @@
           "404": {
             "$ref": "#/responses/error"
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "423": {
             "$ref": "#/responses/repoArchivedError"
           }
@@ -9135,6 +9165,9 @@
           "404": {
             "$ref": "#/responses/error"
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "422": {
             "$ref": "#/responses/validationError"
           },
@@ -9306,6 +9339,9 @@
           "404": {
             "$ref": "#/responses/error"
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "423": {
             "$ref": "#/responses/repoArchivedError"
           }
@@ -11979,6 +12015,9 @@
           },
           "404": {
             "$ref": "#/responses/notFound"
+          },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
           }
         }
       }
@@ -12311,6 +12350,9 @@
           "409": {
             "$ref": "#/responses/error"
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "422": {
             "$ref": "#/responses/validationError"
           },
@@ -12813,6 +12855,9 @@
           "409": {
             "$ref": "#/responses/error"
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "423": {
             "$ref": "#/responses/repoArchivedError"
           }
@@ -13671,6 +13716,9 @@
           "409": {
             "$ref": "#/responses/error"
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "422": {
             "$ref": "#/responses/validationError"
           }
@@ -13777,6 +13825,9 @@
           },
           "404": {
             "$ref": "#/responses/notFound"
+          },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
           }
         }
       }
@@ -13819,6 +13870,9 @@
           },
           "404": {
             "$ref": "#/responses/notFound"
+          },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
           }
         }
       }
@@ -14443,6 +14497,9 @@
           },
           "404": {
             "$ref": "#/responses/notFound"
+          },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
           }
         }
       }
@@ -14605,6 +14662,9 @@
           },
           "404": {
             "$ref": "#/responses/notFound"
+          },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
           }
         }
       }
@@ -15359,6 +15419,9 @@
           "409": {
             "$ref": "#/responses/conflict"
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "422": {
             "$ref": "#/responses/validationError"
           },
@@ -15991,6 +16054,9 @@
           "404": {
             "$ref": "#/responses/notFound"
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "422": {
             "$ref": "#/responses/validationError"
           }
@@ -16032,6 +16098,9 @@
           },
           "404": {
             "$ref": "#/responses/notFound"
+          },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
           }
         }
       }
@@ -16121,6 +16190,9 @@
           "404": {
             "$ref": "#/responses/notFound"
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "423": {
             "$ref": "#/responses/repoArchivedError"
           }
@@ -16265,6 +16337,9 @@
           "404": {
             "$ref": "#/responses/notFound"
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "423": {
             "$ref": "#/responses/repoArchivedError"
           }
@@ -16417,6 +16492,9 @@
           "409": {
             "description": "The repository with the same name already exists."
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "422": {
             "$ref": "#/responses/validationError"
           }
@@ -18514,6 +18592,9 @@
           "409": {
             "description": "The repository with the same name already exists."
           },
+          "413": {
+            "$ref": "#/responses/quotaExceeded"
+          },
           "422": {
             "$ref": "#/responses/validationError"
           }
@@ -28110,6 +28191,21 @@
         "$ref": "#/definitions/SetUserQuotaGroupsOptions"
       }
     },
+    "quotaExceeded": {
+      "description": "QuotaExceeded",
+      "headers": {
+        "message": {
+          "type": "string"
+        },
+        "user_id": {
+          "type": "integer",
+          "format": "int64"
+        },
+        "username": {
+          "type": "string"
+        }
+      }
+    },
     "redirect": {
       "description": "APIRedirect is a redirect response"
     },