From 67fa52dedb81191245ae8c410f10a9621296311f Mon Sep 17 00:00:00 2001
From: Gergely Nagy <forgejo@gergo.csillger.hu>
Date: Sat, 6 Jul 2024 10:30:16 +0200
Subject: [PATCH] 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               |    3 +
 routers/api/actions/artifacts.go              |   13 +
 routers/api/actions/artifactsv4.go            |   13 +
 routers/api/packages/api.go                   |   76 +-
 routers/api/v1/api.go                         |   39 +-
 routers/api/v1/repo/branch.go                 |    2 +
 routers/api/v1/repo/file.go                   |    8 +
 routers/api/v1/repo/fork.go                   |    7 +
 routers/api/v1/repo/issue_attachment.go       |    4 +
 .../api/v1/repo/issue_comment_attachment.go   |    4 +
 routers/api/v1/repo/migrate.go                |    7 +
 routers/api/v1/repo/mirror.go                 |    6 +
 routers/api/v1/repo/patch.go                  |    2 +
 routers/api/v1/repo/pull.go                   |    6 +
 routers/api/v1/repo/release_attachment.go     |    4 +
 routers/api/v1/repo/repo.go                   |    9 +
 routers/api/v1/repo/tag.go                    |    2 +
 routers/api/v1/repo/transfer.go               |   14 +
 routers/api/v1/repo/wiki.go                   |    4 +
 routers/private/hook_pre_receive.go           |   56 +
 routers/web/repo/migrate.go                   |   24 +
 routers/web/repo/pull.go                      |    5 +
 routers/web/repo/repo.go                      |   28 +-
 routers/web/repo/setting/setting.go           |   26 +
 routers/web/web.go                            |   24 +-
 services/context/quota.go                     |  156 ++
 services/lfs/server.go                        |   25 +
 services/mirror/mirror.go                     |   14 +
 services/task/task.go                         |   15 +
 templates/status/413.tmpl                     |   11 +
 templates/swagger/v1_json.tmpl                |   96 ++
 tests/integration/api_quota_use_test.go       | 1436 +++++++++++++++++
 tests/integration/quota_use_test.go           | 1099 +++++++++++++
 33 files changed, 3172 insertions(+), 66 deletions(-)
 create mode 100644 templates/status/413.tmpl
 create mode 100644 tests/integration/api_quota_use_test.go
 create mode 100644 tests/integration/quota_use_test.go

diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini
index 915db6cc2e..f06e9c596b 100644
--- a/options/locale/locale_en-US.ini
+++ b/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
diff --git a/routers/api/actions/artifacts.go b/routers/api/actions/artifacts.go
index 6aa0ecaaec..7b26e4703f 100644
--- a/routers/api/actions/artifacts.go
+++ b/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)
 
diff --git a/routers/api/actions/artifactsv4.go b/routers/api/actions/artifactsv4.go
index 57d7f9ad6f..7b2f9c4360 100644
--- a/routers/api/actions/artifactsv4.go
+++ b/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":
diff --git a/routers/api/packages/api.go b/routers/api/packages/api.go
index 79285783b9..f590947111 100644
--- a/routers/api/packages/api.go
+++ b/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("/symbolpackage", nuget.UploadSymbolPackage)
+					r.Put("/", enforcePackagesQuota(), nuget.UploadPackage)
+					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))
diff --git a/routers/api/v1/api.go b/routers/api/v1/api.go
index 263ee5fdc4..fa0cd6c753 100644
--- a/routers/api/v1/api.go
+++ b/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.Put("", bind(api.UpdateFileOptions{}), reqRepoBranchWriter, mustNotBeArchived, repo.UpdateFile)
-						m.Delete("", bind(api.DeleteFileOptions{}), reqRepoBranchWriter, mustNotBeArchived, repo.DeleteFile)
+						m.Post("", bind(api.CreateFileOptions{}), reqRepoBranchWriter, mustNotBeArchived, context.EnforceQuotaAPI(quota_model.LimitSubjectSizeReposAll, context.QuotaTargetRepo), repo.CreateFile)
+						m.Put("", bind(api.UpdateFileOptions{}), reqRepoBranchWriter, mustNotBeArchived, context.EnforceQuotaAPI(quota_model.LimitSubjectSizeReposAll, context.QuotaTargetRepo), repo.UpdateFile)
+						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).
diff --git a/routers/api/v1/repo/branch.go b/routers/api/v1/repo/branch.go
index 852b7a2ee0..a468fd90d0 100644
--- a/routers/api/v1/repo/branch.go
+++ b/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"
 
diff --git a/routers/api/v1/repo/file.go b/routers/api/v1/repo/file.go
index aae82894c7..1fa44d50c4 100644
--- a/routers/api/v1/repo/file.go
+++ b/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"
 
diff --git a/routers/api/v1/repo/fork.go b/routers/api/v1/repo/fork.go
index 212cc7a93b..829a977277 100644
--- a/routers/api/v1/repo/fork.go
+++ b/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
diff --git a/routers/api/v1/repo/issue_attachment.go b/routers/api/v1/repo/issue_attachment.go
index 70613529c8..a972ab0374 100644
--- a/routers/api/v1/repo/issue_attachment.go
+++ b/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"
 
diff --git a/routers/api/v1/repo/issue_comment_attachment.go b/routers/api/v1/repo/issue_comment_attachment.go
index 4c8516ec83..c45e2ebe89 100644
--- a/routers/api/v1/repo/issue_comment_attachment.go
+++ b/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)
diff --git a/routers/api/v1/repo/migrate.go b/routers/api/v1/repo/migrate.go
index 14c8c01f4e..0991723d47 100644
--- a/routers/api/v1/repo/migrate.go
+++ b/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.")
diff --git a/routers/api/v1/repo/mirror.go b/routers/api/v1/repo/mirror.go
index eddd449206..c0297d77ad 100644
--- a/routers/api/v1/repo/mirror.go
+++ b/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")
diff --git a/routers/api/v1/repo/patch.go b/routers/api/v1/repo/patch.go
index 0e0601b7d9..27c5c17dce 100644
--- a/routers/api/v1/repo/patch.go
+++ b/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)
diff --git a/routers/api/v1/repo/pull.go b/routers/api/v1/repo/pull.go
index d5bed1f640..4ae4d08814 100644
--- a/routers/api/v1/repo/pull.go
+++ b/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"
 
diff --git a/routers/api/v1/repo/release_attachment.go b/routers/api/v1/repo/release_attachment.go
index 5e43f2987a..d569f6e928 100644
--- a/routers/api/v1/repo/release_attachment.go
+++ b/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)
 
diff --git a/routers/api/v1/repo/repo.go b/routers/api/v1/repo/repo.go
index 05a63bc62b..9f6536b2c5 100644
--- a/routers/api/v1/repo/repo.go
+++ b/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) {
diff --git a/routers/api/v1/repo/tag.go b/routers/api/v1/repo/tag.go
index c050883768..7dbdd1fcbd 100644
--- a/routers/api/v1/repo/tag.go
+++ b/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":
diff --git a/routers/api/v1/repo/transfer.go b/routers/api/v1/repo/transfer.go
index 94c6bc6ded..0715aed064 100644
--- a/routers/api/v1/repo/transfer.go
+++ b/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)
 	}
 
diff --git a/routers/api/v1/repo/wiki.go b/routers/api/v1/repo/wiki.go
index 1b92c7bceb..12aaa8edf8 100644
--- a/routers/api/v1/repo/wiki.go
+++ b/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"
 
diff --git a/routers/private/hook_pre_receive.go b/routers/private/hook_pre_receive.go
index 8f7575c1db..4b8439d2da 100644
--- a/routers/private/hook_pre_receive.go
+++ b/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
diff --git a/routers/web/repo/migrate.go b/routers/web/repo/migrate.go
index 97b0c425ea..70113e50ec 100644
--- a/routers/web/repo/migrate.go
+++ b/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)
diff --git a/routers/web/repo/pull.go b/routers/web/repo/pull.go
index be6511afaa..aa1f506483 100644
--- a/routers/web/repo/pull.go
+++ b/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
diff --git a/routers/web/repo/repo.go b/routers/web/repo/repo.go
index 711a1e1e12..7e20d3afaa 100644
--- a/routers/web/repo/repo.go
+++ b/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:
diff --git a/routers/web/repo/setting/setting.go b/routers/web/repo/setting/setting.go
index 66e96b9961..7da622101f 100644
--- a/routers/web/repo/setting/setting.go
+++ b/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()
diff --git a/routers/web/web.go b/routers/web/web.go
index edf0769a4b..dccb391270 100644
--- a/routers/web/web.go
+++ b/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.Post("/new", web.Bind(forms.NewReleaseForm{}), repo.NewReleasePost)
+			m.Combo("/new", context.EnforceQuotaWeb(quota_model.LimitSubjectSizeReposAll, context.QuotaTargetRepo)).
+				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)
diff --git a/services/context/quota.go b/services/context/quota.go
index 1022e7453a..94e8847696 100644
--- a/services/context/quota.go
+++ b/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)
+}
diff --git a/services/lfs/server.go b/services/lfs/server.go
index ace501e15f..a300de19c4 100644
--- a/services/lfs/server.go
+++ b/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)
diff --git a/services/mirror/mirror.go b/services/mirror/mirror.go
index 44218d6fb3..bc2d6711cf 100644
--- a/services/mirror/mirror.go
+++ b/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 {
diff --git a/services/task/task.go b/services/task/task.go
index c90ee91270..ac659ac3e5 100644
--- a/services/task/task.go
+++ b/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
+}
diff --git a/templates/status/413.tmpl b/templates/status/413.tmpl
new file mode 100644
index 0000000000..8248f601b2
--- /dev/null
+++ b/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" .}}
diff --git a/templates/swagger/v1_json.tmpl b/templates/swagger/v1_json.tmpl
index ffb4f34bb0..39b92f4e79 100644
--- a/templates/swagger/v1_json.tmpl
+++ b/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"
     },
diff --git a/tests/integration/api_quota_use_test.go b/tests/integration/api_quota_use_test.go
new file mode 100644
index 0000000000..846ced34b1
--- /dev/null
+++ b/tests/integration/api_quota_use_test.go
@@ -0,0 +1,1436 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package integration
+
+import (
+	"bytes"
+	"encoding/base64"
+	"fmt"
+	"io"
+	"mime/multipart"
+	"net/http"
+	"net/url"
+	"strings"
+	"testing"
+
+	auth_model "code.gitea.io/gitea/models/auth"
+	"code.gitea.io/gitea/models/db"
+	quota_model "code.gitea.io/gitea/models/quota"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/migration"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/setting"
+	api "code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/test"
+	"code.gitea.io/gitea/routers"
+	"code.gitea.io/gitea/services/context"
+	"code.gitea.io/gitea/services/forms"
+	repo_service "code.gitea.io/gitea/services/repository"
+	"code.gitea.io/gitea/tests"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+type quotaEnvUser struct {
+	User    *user_model.User
+	Session *TestSession
+	Token   string
+}
+
+type quotaEnvOrgs struct {
+	Unlimited api.Organization
+	Limited   api.Organization
+}
+
+type quotaEnv struct {
+	Admin quotaEnvUser
+	User  quotaEnvUser
+	Dummy quotaEnvUser
+
+	Repo *repo_model.Repository
+	Orgs quotaEnvOrgs
+
+	cleanups []func()
+}
+
+func (e *quotaEnv) APIPathForRepo(uriFormat string, a ...any) string {
+	path := fmt.Sprintf(uriFormat, a...)
+	return fmt.Sprintf("/api/v1/repos/%s/%s%s", e.User.User.Name, e.Repo.Name, path)
+}
+
+func (e *quotaEnv) Cleanup() {
+	for i := len(e.cleanups) - 1; i >= 0; i-- {
+		e.cleanups[i]()
+	}
+}
+
+func (e *quotaEnv) WithoutQuota(t *testing.T, task func(), rules ...string) {
+	rule := "all"
+	if rules != nil {
+		rule = rules[0]
+	}
+	defer e.SetRuleLimit(t, rule, -1)()
+	task()
+}
+
+func (e *quotaEnv) SetupWithSingleQuotaRule(t *testing.T) {
+	t.Helper()
+
+	cleaner := test.MockVariableValue(&setting.Quota.Enabled, true)
+	e.cleanups = append(e.cleanups, cleaner)
+	cleaner = test.MockVariableValue(&testWebRoutes, routers.NormalRoutes())
+	e.cleanups = append(e.cleanups, cleaner)
+
+	// Create a default group
+	cleaner = createQuotaGroup(t, "default")
+	e.cleanups = append(e.cleanups, cleaner)
+
+	// Create a single all-encompassing rule
+	unlimited := int64(-1)
+	ruleAll := api.CreateQuotaRuleOptions{
+		Name:     "all",
+		Limit:    &unlimited,
+		Subjects: []string{"size:all"},
+	}
+	cleaner = createQuotaRule(t, ruleAll)
+	e.cleanups = append(e.cleanups, cleaner)
+
+	// Add these rules to the group
+	cleaner = e.AddRuleToGroup(t, "default", "all")
+	e.cleanups = append(e.cleanups, cleaner)
+
+	// Add the user to the quota group
+	cleaner = e.AddUserToGroup(t, "default", e.User.User.Name)
+	e.cleanups = append(e.cleanups, cleaner)
+}
+
+func (e *quotaEnv) AddDummyUser(t *testing.T, username string) {
+	t.Helper()
+
+	userCleanup := apiCreateUser(t, username)
+	e.Dummy.User = unittest.AssertExistsAndLoadBean(t, &user_model.User{Name: username})
+	e.Dummy.Session = loginUser(t, e.Dummy.User.Name)
+	e.Dummy.Token = getTokenForLoggedInUser(t, e.Dummy.Session, auth_model.AccessTokenScopeAll)
+	e.cleanups = append(e.cleanups, userCleanup)
+
+	// Add the user to the "limited" group. See AddLimitedOrg
+	cleaner := e.AddUserToGroup(t, "limited", username)
+	e.cleanups = append(e.cleanups, cleaner)
+}
+
+func (e *quotaEnv) AddLimitedOrg(t *testing.T) {
+	t.Helper()
+
+	// Create the limited org
+	req := NewRequestWithJSON(t, "POST", "/api/v1/orgs", api.CreateOrgOption{
+		UserName: "limited-org",
+	}).AddTokenAuth(e.User.Token)
+	resp := e.User.Session.MakeRequest(t, req, http.StatusCreated)
+	DecodeJSON(t, resp, &e.Orgs.Limited)
+	e.cleanups = append(e.cleanups, func() {
+		req := NewRequest(t, "DELETE", "/api/v1/orgs/limited-org").
+			AddTokenAuth(e.Admin.Token)
+		e.Admin.Session.MakeRequest(t, req, http.StatusNoContent)
+	})
+
+	// Create a group for the org
+	cleaner := createQuotaGroup(t, "limited")
+	e.cleanups = append(e.cleanups, cleaner)
+
+	// Create a single all-encompassing rule
+	zero := int64(0)
+	ruleDenyAll := api.CreateQuotaRuleOptions{
+		Name:     "deny-all",
+		Limit:    &zero,
+		Subjects: []string{"size:all"},
+	}
+	cleaner = createQuotaRule(t, ruleDenyAll)
+	e.cleanups = append(e.cleanups, cleaner)
+
+	// Add these rules to the group
+	cleaner = e.AddRuleToGroup(t, "limited", "deny-all")
+	e.cleanups = append(e.cleanups, cleaner)
+
+	// Add the user to the quota group
+	cleaner = e.AddUserToGroup(t, "limited", e.Orgs.Limited.UserName)
+	e.cleanups = append(e.cleanups, cleaner)
+}
+
+func (e *quotaEnv) AddUnlimitedOrg(t *testing.T) {
+	t.Helper()
+
+	req := NewRequestWithJSON(t, "POST", "/api/v1/orgs", api.CreateOrgOption{
+		UserName: "unlimited-org",
+	}).AddTokenAuth(e.User.Token)
+	resp := e.User.Session.MakeRequest(t, req, http.StatusCreated)
+	DecodeJSON(t, resp, &e.Orgs.Unlimited)
+	e.cleanups = append(e.cleanups, func() {
+		req := NewRequest(t, "DELETE", "/api/v1/orgs/unlimited-org").
+			AddTokenAuth(e.Admin.Token)
+		e.Admin.Session.MakeRequest(t, req, http.StatusNoContent)
+	})
+}
+
+func (e *quotaEnv) SetupWithMultipleQuotaRules(t *testing.T) {
+	t.Helper()
+
+	cleaner := test.MockVariableValue(&setting.Quota.Enabled, true)
+	e.cleanups = append(e.cleanups, cleaner)
+	cleaner = test.MockVariableValue(&testWebRoutes, routers.NormalRoutes())
+	e.cleanups = append(e.cleanups, cleaner)
+
+	// Create a default group
+	cleaner = createQuotaGroup(t, "default")
+	e.cleanups = append(e.cleanups, cleaner)
+
+	// Create three rules: all, repo-size, and asset-size
+	zero := int64(0)
+	ruleAll := api.CreateQuotaRuleOptions{
+		Name:     "all",
+		Limit:    &zero,
+		Subjects: []string{"size:all"},
+	}
+	cleaner = createQuotaRule(t, ruleAll)
+	e.cleanups = append(e.cleanups, cleaner)
+
+	fifteenMb := int64(1024 * 1024 * 15)
+	ruleRepoSize := api.CreateQuotaRuleOptions{
+		Name:     "repo-size",
+		Limit:    &fifteenMb,
+		Subjects: []string{"size:repos:all"},
+	}
+	cleaner = createQuotaRule(t, ruleRepoSize)
+	e.cleanups = append(e.cleanups, cleaner)
+
+	ruleAssetSize := api.CreateQuotaRuleOptions{
+		Name:     "asset-size",
+		Limit:    &fifteenMb,
+		Subjects: []string{"size:assets:all"},
+	}
+	cleaner = createQuotaRule(t, ruleAssetSize)
+	e.cleanups = append(e.cleanups, cleaner)
+
+	// Add these rules to the group
+	cleaner = e.AddRuleToGroup(t, "default", "all")
+	e.cleanups = append(e.cleanups, cleaner)
+	cleaner = e.AddRuleToGroup(t, "default", "repo-size")
+	e.cleanups = append(e.cleanups, cleaner)
+	cleaner = e.AddRuleToGroup(t, "default", "asset-size")
+	e.cleanups = append(e.cleanups, cleaner)
+
+	// Add the user to the quota group
+	cleaner = e.AddUserToGroup(t, "default", e.User.User.Name)
+	e.cleanups = append(e.cleanups, cleaner)
+}
+
+func (e *quotaEnv) AddUserToGroup(t *testing.T, group, user string) func() {
+	t.Helper()
+
+	req := NewRequestf(t, "PUT", "/api/v1/admin/quota/groups/%s/users/%s", group, user).AddTokenAuth(e.Admin.Token)
+	e.Admin.Session.MakeRequest(t, req, http.StatusNoContent)
+
+	return func() {
+		req := NewRequestf(t, "DELETE", "/api/v1/admin/quota/groups/%s/users/%s", group, user).AddTokenAuth(e.Admin.Token)
+		e.Admin.Session.MakeRequest(t, req, http.StatusNoContent)
+	}
+}
+
+func (e *quotaEnv) SetRuleLimit(t *testing.T, rule string, limit int64) func() {
+	t.Helper()
+
+	originalRule, err := quota_model.GetRuleByName(db.DefaultContext, rule)
+	require.NoError(t, err)
+	assert.NotNil(t, originalRule)
+
+	req := NewRequestWithJSON(t, "PATCH", fmt.Sprintf("/api/v1/admin/quota/rules/%s", rule), api.EditQuotaRuleOptions{
+		Limit: &limit,
+	}).AddTokenAuth(e.Admin.Token)
+	e.Admin.Session.MakeRequest(t, req, http.StatusOK)
+
+	return func() {
+		e.SetRuleLimit(t, rule, originalRule.Limit)
+	}
+}
+
+func (e *quotaEnv) RemoveRuleFromGroup(t *testing.T, group, rule string) {
+	t.Helper()
+
+	req := NewRequestf(t, "DELETE", "/api/v1/admin/quota/groups/%s/rules/%s", group, rule).AddTokenAuth(e.Admin.Token)
+	e.Admin.Session.MakeRequest(t, req, http.StatusNoContent)
+}
+
+func (e *quotaEnv) AddRuleToGroup(t *testing.T, group, rule string) func() {
+	t.Helper()
+
+	req := NewRequestf(t, "PUT", "/api/v1/admin/quota/groups/%s/rules/%s", group, rule).AddTokenAuth(e.Admin.Token)
+	e.Admin.Session.MakeRequest(t, req, http.StatusNoContent)
+
+	return func() {
+		e.RemoveRuleFromGroup(t, group, rule)
+	}
+}
+
+func prepareQuotaEnv(t *testing.T, username string) *quotaEnv {
+	t.Helper()
+
+	env := quotaEnv{}
+
+	// Set up the admin user
+	env.Admin.User = unittest.AssertExistsAndLoadBean(t, &user_model.User{IsAdmin: true})
+	env.Admin.Session = loginUser(t, env.Admin.User.Name)
+	env.Admin.Token = getTokenForLoggedInUser(t, env.Admin.Session, auth_model.AccessTokenScopeAll)
+
+	// Create a test user
+	userCleanup := apiCreateUser(t, username)
+	env.User.User = unittest.AssertExistsAndLoadBean(t, &user_model.User{Name: username})
+	env.User.Session = loginUser(t, env.User.User.Name)
+	env.User.Token = getTokenForLoggedInUser(t, env.User.Session, auth_model.AccessTokenScopeAll)
+	env.cleanups = append(env.cleanups, userCleanup)
+
+	// Create a repository
+	repo, _, repoCleanup := CreateDeclarativeRepoWithOptions(t, env.User.User, DeclarativeRepoOptions{})
+	env.Repo = repo
+	env.cleanups = append(env.cleanups, repoCleanup)
+
+	return &env
+}
+
+func TestAPIQuotaUserCleanSlate(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		defer test.MockVariableValue(&setting.Quota.Enabled, true)()
+		defer test.MockVariableValue(&testWebRoutes, routers.NormalRoutes())()
+
+		env := prepareQuotaEnv(t, "qt-clean-slate")
+		defer env.Cleanup()
+
+		t.Run("branch creation", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			// Create a branch
+			req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/branches"), api.CreateBranchRepoOption{
+				BranchName: "branch-to-delete",
+			}).AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, http.StatusCreated)
+		})
+	})
+}
+
+func TestAPIQuotaEnforcement(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		testAPIQuotaEnforcement(t)
+	})
+}
+
+func TestAPIQuotaCountsTowardsCorrectUser(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		env := prepareQuotaEnv(t, "quota-correct-user-test")
+		defer env.Cleanup()
+		env.SetupWithSingleQuotaRule(t)
+
+		// Create a new group, with size:all set to 0
+		defer createQuotaGroup(t, "limited")()
+		zero := int64(0)
+		defer createQuotaRule(t, api.CreateQuotaRuleOptions{
+			Name:     "limited",
+			Limit:    &zero,
+			Subjects: []string{"size:all"},
+		})()
+		defer env.AddRuleToGroup(t, "limited", "limited")()
+
+		// Add the admin user to it
+		defer env.AddUserToGroup(t, "limited", env.Admin.User.Name)()
+
+		// Add the admin user as collaborator to our repo
+		perm := "admin"
+		req := NewRequestWithJSON(t, "PUT",
+			env.APIPathForRepo("/collaborators/%s", env.Admin.User.Name),
+			api.AddCollaboratorOption{
+				Permission: &perm,
+			}).AddTokenAuth(env.User.Token)
+		env.User.Session.MakeRequest(t, req, http.StatusNoContent)
+
+		// Now, try to push something as admin!
+		req = NewRequestWithJSON(t, "POST", env.APIPathForRepo("/branches"), api.CreateBranchRepoOption{
+			BranchName: "admin-branch",
+		}).AddTokenAuth(env.Admin.Token)
+		env.Admin.Session.MakeRequest(t, req, http.StatusCreated)
+	})
+}
+
+func TestAPIQuotaError(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		env := prepareQuotaEnv(t, "quota-enforcement")
+		defer env.Cleanup()
+		env.SetupWithSingleQuotaRule(t)
+		env.AddUnlimitedOrg(t)
+		env.AddLimitedOrg(t)
+
+		req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/forks"), api.CreateForkOption{
+			Organization: &env.Orgs.Limited.UserName,
+		}).AddTokenAuth(env.User.Token)
+		resp := env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+
+		var msg context.APIQuotaExceeded
+		DecodeJSON(t, resp, &msg)
+
+		assert.EqualValues(t, env.Orgs.Limited.ID, msg.UserID)
+		assert.Equal(t, env.Orgs.Limited.UserName, msg.UserName)
+	})
+}
+
+func testAPIQuotaEnforcement(t *testing.T) {
+	env := prepareQuotaEnv(t, "quota-enforcement")
+	defer env.Cleanup()
+	env.SetupWithSingleQuotaRule(t)
+	env.AddUnlimitedOrg(t)
+	env.AddLimitedOrg(t)
+	env.AddDummyUser(t, "qe-dummy")
+
+	t.Run("#/user/repos", func(t *testing.T) {
+		defer tests.PrintCurrentTest(t)()
+		defer env.SetRuleLimit(t, "all", 0)()
+
+		t.Run("CREATE", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			req := NewRequestWithJSON(t, "POST", "/api/v1/user/repos", api.CreateRepoOption{
+				Name:     "quota-exceeded",
+				AutoInit: true,
+			}).AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+		})
+
+		t.Run("LIST", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			req := NewRequest(t, "GET", "/api/v1/user/repos").AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, http.StatusOK)
+		})
+	})
+
+	t.Run("#/orgs/{org}/repos", func(t *testing.T) {
+		defer tests.PrintCurrentTest(t)()
+		defer env.SetRuleLimit(t, "all", 0)
+
+		assertCreateRepo := func(t *testing.T, orgName, repoName string, expectedStatus int) func() {
+			t.Helper()
+
+			req := NewRequestWithJSON(t, "POST", fmt.Sprintf("/api/v1/orgs/%s/repos", orgName), api.CreateRepoOption{
+				Name: repoName,
+			}).AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, expectedStatus)
+
+			return func() {
+				req := NewRequestf(t, "DELETE", "/api/v1/repos/%s/%s", orgName, repoName).
+					AddTokenAuth(env.User.Token)
+				env.User.Session.MakeRequest(t, req, http.StatusNoContent)
+			}
+		}
+
+		t.Run("limited", func(t *testing.T) {
+			t.Run("LIST", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				req := NewRequestf(t, "GET", "/api/v1/orgs/%s/repos", env.Orgs.Unlimited.UserName).
+					AddTokenAuth(env.User.Token)
+				env.User.Session.MakeRequest(t, req, http.StatusOK)
+			})
+
+			t.Run("CREATE", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				assertCreateRepo(t, env.Orgs.Limited.UserName, "test-repo", http.StatusRequestEntityTooLarge)
+			})
+		})
+
+		t.Run("unlimited", func(t *testing.T) {
+			t.Run("CREATE", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				defer assertCreateRepo(t, env.Orgs.Unlimited.UserName, "test-repo", http.StatusCreated)()
+			})
+		})
+	})
+
+	t.Run("#/repos/migrate", func(t *testing.T) {
+		t.Run("to:limited", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+			defer env.SetRuleLimit(t, "all", 0)()
+
+			req := NewRequestWithJSON(t, "POST", "/api/v1/repos/migrate", api.MigrateRepoOptions{
+				CloneAddr: env.Repo.HTMLURL() + ".git",
+				RepoName:  "quota-migrate",
+				Service:   "forgejo",
+			}).AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+		})
+
+		t.Run("to:unlimited", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+			defer env.SetRuleLimit(t, "all", 0)()
+
+			req := NewRequestWithJSON(t, "POST", "/api/v1/repos/migrate", api.MigrateRepoOptions{
+				CloneAddr: "an-invalid-address",
+				RepoName:  "quota-migrate",
+				RepoOwner: env.Orgs.Unlimited.UserName,
+				Service:   "forgejo",
+			}).AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, http.StatusUnprocessableEntity)
+		})
+	})
+
+	t.Run("#/repos/{template_owner}/{template_repo}/generate", func(t *testing.T) {
+		defer tests.PrintCurrentTest(t)()
+
+		// Create a template repository
+		template, _, cleanup := CreateDeclarativeRepoWithOptions(t, env.User.User, DeclarativeRepoOptions{
+			IsTemplate: optional.Some(true),
+		})
+		defer cleanup()
+
+		// Drop the quota to 0
+		defer env.SetRuleLimit(t, "all", 0)()
+
+		t.Run("to: limited", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			req := NewRequestWithJSON(t, "POST", template.APIURL()+"/generate", api.GenerateRepoOption{
+				Owner:      env.User.User.Name,
+				Name:       "generated-repo",
+				GitContent: true,
+			}).AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+		})
+
+		t.Run("to: unlimited", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			req := NewRequestWithJSON(t, "POST", template.APIURL()+"/generate", api.GenerateRepoOption{
+				Owner:      env.Orgs.Unlimited.UserName,
+				Name:       "generated-repo",
+				GitContent: true,
+			}).AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, http.StatusCreated)
+
+			req = NewRequestf(t, "DELETE", "/api/v1/repos/%s/generated-repo", env.Orgs.Unlimited.UserName).
+				AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, http.StatusNoContent)
+		})
+	})
+
+	t.Run("#/repos/{username}/{reponame}", func(t *testing.T) {
+		// Lets create a new repo to play with.
+		repo, _, repoCleanup := CreateDeclarativeRepoWithOptions(t, env.User.User, DeclarativeRepoOptions{})
+		defer repoCleanup()
+
+		// Drop the quota to 0
+		defer env.SetRuleLimit(t, "all", 0)()
+
+		deleteRepo := func(t *testing.T, path string) {
+			t.Helper()
+
+			req := NewRequestf(t, "DELETE", "/api/v1/repos/%s", path).
+				AddTokenAuth(env.Admin.Token)
+			env.Admin.Session.MakeRequest(t, req, http.StatusNoContent)
+		}
+
+		t.Run("GET", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			req := NewRequestf(t, "GET", "/api/v1/repos/%s/%s", env.User.User.Name, repo.Name).
+				AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, http.StatusOK)
+		})
+		t.Run("PATCH", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			desc := "Some description"
+			req := NewRequestWithJSON(t, "PATCH", fmt.Sprintf("/api/v1/repos/%s/%s", env.User.User.Name, repo.Name), api.EditRepoOption{
+				Description: &desc,
+			}).AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, http.StatusOK)
+		})
+		t.Run("DELETE", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			req := NewRequestf(t, "DELETE", "/api/v1/repos/%s/%s", env.User.User.Name, repo.Name).
+				AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, http.StatusNoContent)
+		})
+
+		t.Run("branches", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			// Create a branch we can delete later
+			env.WithoutQuota(t, func() {
+				req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/branches"), api.CreateBranchRepoOption{
+					BranchName: "to-delete",
+				}).AddTokenAuth(env.User.Token)
+				env.User.Session.MakeRequest(t, req, http.StatusCreated)
+			})
+
+			t.Run("LIST", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				req := NewRequest(t, "GET", env.APIPathForRepo("/branches")).
+					AddTokenAuth(env.User.Token)
+				env.User.Session.MakeRequest(t, req, http.StatusOK)
+			})
+			t.Run("CREATE", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/branches"), api.CreateBranchRepoOption{
+					BranchName: "quota-exceeded",
+				}).AddTokenAuth(env.User.Token)
+				env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+			})
+
+			t.Run("{branch}", func(t *testing.T) {
+				t.Run("GET", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequest(t, "GET", env.APIPathForRepo("/branches/to-delete")).
+						AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusOK)
+				})
+				t.Run("DELETE", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequest(t, "DELETE", env.APIPathForRepo("/branches/to-delete")).
+						AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusNoContent)
+				})
+			})
+		})
+
+		t.Run("contents", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			var fileSha string
+
+			// Create a file to play with
+			env.WithoutQuota(t, func() {
+				req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/contents/plaything.txt"), api.CreateFileOptions{
+					ContentBase64: base64.StdEncoding.EncodeToString([]byte("hello world")),
+				}).AddTokenAuth(env.User.Token)
+				resp := env.User.Session.MakeRequest(t, req, http.StatusCreated)
+
+				var r api.FileResponse
+				DecodeJSON(t, resp, &r)
+
+				fileSha = r.Content.SHA
+			})
+
+			t.Run("LIST", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				req := NewRequest(t, "GET", env.APIPathForRepo("/contents")).
+					AddTokenAuth(env.User.Token)
+				env.User.Session.MakeRequest(t, req, http.StatusOK)
+			})
+			t.Run("CREATE", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/contents"), api.ChangeFilesOptions{
+					Files: []*api.ChangeFileOperation{
+						{
+							Operation: "create",
+							Path:      "quota-exceeded.txt",
+						},
+					},
+				}).AddTokenAuth(env.User.Token)
+				env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+			})
+
+			t.Run("{filepath}", func(t *testing.T) {
+				t.Run("GET", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequest(t, "GET", env.APIPathForRepo("/contents/plaything.txt")).
+						AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusOK)
+				})
+				t.Run("CREATE", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/contents/plaything.txt"), api.CreateFileOptions{
+						ContentBase64: base64.StdEncoding.EncodeToString([]byte("hello world")),
+					}).AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+				})
+				t.Run("UPDATE", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequestWithJSON(t, "PUT", env.APIPathForRepo("/contents/plaything.txt"), api.UpdateFileOptions{
+						ContentBase64: base64.StdEncoding.EncodeToString([]byte("hello world")),
+						DeleteFileOptions: api.DeleteFileOptions{
+							SHA: fileSha,
+						},
+					}).AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+				})
+				t.Run("DELETE", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					// Deleting a file fails, because it creates a new commit,
+					// which would increase the quota use.
+					req := NewRequestWithJSON(t, "DELETE", env.APIPathForRepo("/contents/plaything.txt"), api.DeleteFileOptions{
+						SHA: fileSha,
+					}).AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+				})
+			})
+		})
+
+		t.Run("diffpatch", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			req := NewRequestWithJSON(t, "PUT", env.APIPathForRepo("/contents/README.md"), api.UpdateFileOptions{
+				ContentBase64: base64.StdEncoding.EncodeToString([]byte("hello world")),
+				DeleteFileOptions: api.DeleteFileOptions{
+					SHA: "c0ffeebabe",
+				},
+			}).AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+		})
+
+		t.Run("forks", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			t.Run("as: limited user", func(t *testing.T) {
+				// Our current user (env.User) is already limited here.
+
+				t.Run("into: limited org", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/forks"), api.CreateForkOption{
+						Organization: &env.Orgs.Limited.UserName,
+					}).AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+				})
+
+				t.Run("into: unlimited org", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/forks"), api.CreateForkOption{
+						Organization: &env.Orgs.Unlimited.UserName,
+					}).AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusAccepted)
+
+					deleteRepo(t, env.Orgs.Unlimited.UserName+"/"+env.Repo.Name)
+				})
+			})
+			t.Run("as: unlimited user", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				// Lift the quota limits on our current user temporarily
+				defer env.SetRuleLimit(t, "all", -1)()
+
+				t.Run("into: limited org", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/forks"), api.CreateForkOption{
+						Organization: &env.Orgs.Limited.UserName,
+					}).AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+				})
+
+				t.Run("into: unlimited org", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/forks"), api.CreateForkOption{
+						Organization: &env.Orgs.Unlimited.UserName,
+					}).AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusAccepted)
+
+					deleteRepo(t, env.Orgs.Unlimited.UserName+"/"+env.Repo.Name)
+				})
+			})
+		})
+
+		t.Run("mirror-sync", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			var mirrorRepo *repo_model.Repository
+			env.WithoutQuota(t, func() {
+				// Create a mirror repo
+				opts := migration.MigrateOptions{
+					RepoName:    "test_mirror",
+					Description: "Test mirror",
+					Private:     false,
+					Mirror:      true,
+					CloneAddr:   repo_model.RepoPath(env.User.User.Name, env.Repo.Name),
+					Wiki:        true,
+					Releases:    false,
+				}
+
+				repo, err := repo_service.CreateRepositoryDirectly(db.DefaultContext, env.User.User, env.User.User, repo_service.CreateRepoOptions{
+					Name:        opts.RepoName,
+					Description: opts.Description,
+					IsPrivate:   opts.Private,
+					IsMirror:    opts.Mirror,
+					Status:      repo_model.RepositoryBeingMigrated,
+				})
+				require.NoError(t, err)
+
+				mirrorRepo = repo
+			})
+
+			req := NewRequestf(t, "POST", "/api/v1/repos/%s/mirror-sync", mirrorRepo.FullName()).
+				AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+		})
+
+		t.Run("issues", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			// Create an issue play with
+			req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/issues"), api.CreateIssueOption{
+				Title: "quota test issue",
+			}).AddTokenAuth(env.User.Token)
+			resp := env.User.Session.MakeRequest(t, req, http.StatusCreated)
+
+			var issue api.Issue
+			DecodeJSON(t, resp, &issue)
+
+			createAsset := func(filename string) (*bytes.Buffer, string) {
+				buff := generateImg()
+				body := &bytes.Buffer{}
+
+				// Setup multi-part
+				writer := multipart.NewWriter(body)
+				part, _ := writer.CreateFormFile("attachment", filename)
+				io.Copy(part, &buff)
+				writer.Close()
+
+				return body, writer.FormDataContentType()
+			}
+
+			t.Run("{index}/assets", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				t.Run("LIST", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequest(t, "GET", env.APIPathForRepo("/issues/%d/assets", issue.Index)).
+						AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusOK)
+				})
+				t.Run("CREATE", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					body, contentType := createAsset("overquota.png")
+					req := NewRequestWithBody(t, "POST", env.APIPathForRepo("/issues/%d/assets", issue.Index), body).
+						AddTokenAuth(env.User.Token)
+					req.Header.Add("Content-Type", contentType)
+					env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+				})
+
+				t.Run("{attachment_id}", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					var issueAsset api.Attachment
+					env.WithoutQuota(t, func() {
+						body, contentType := createAsset("test.png")
+						req := NewRequestWithBody(t, "POST", env.APIPathForRepo("/issues/%d/assets", issue.Index), body).
+							AddTokenAuth(env.User.Token)
+						req.Header.Add("Content-Type", contentType)
+						resp := env.User.Session.MakeRequest(t, req, http.StatusCreated)
+
+						DecodeJSON(t, resp, &issueAsset)
+					})
+
+					t.Run("GET", func(t *testing.T) {
+						defer tests.PrintCurrentTest(t)()
+
+						req := NewRequest(t, "GET", env.APIPathForRepo("/issues/%d/assets/%d", issue.Index, issueAsset.ID)).
+							AddTokenAuth(env.User.Token)
+						env.User.Session.MakeRequest(t, req, http.StatusOK)
+					})
+					t.Run("UPDATE", func(t *testing.T) {
+						defer tests.PrintCurrentTest(t)()
+
+						req := NewRequestWithJSON(t, "PATCH", env.APIPathForRepo("/issues/%d/assets/%d", issue.Index, issueAsset.ID), api.EditAttachmentOptions{
+							Name: "new-name.png",
+						}).AddTokenAuth(env.User.Token)
+						env.User.Session.MakeRequest(t, req, http.StatusCreated)
+					})
+					t.Run("DELETE", func(t *testing.T) {
+						defer tests.PrintCurrentTest(t)()
+
+						req := NewRequest(t, "DELETE", env.APIPathForRepo("/issues/%d/assets/%d", issue.Index, issueAsset.ID)).
+							AddTokenAuth(env.User.Token)
+						env.User.Session.MakeRequest(t, req, http.StatusNoContent)
+					})
+				})
+			})
+
+			t.Run("comments/{id}/assets", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				// Create a new comment!
+				var comment api.Comment
+				req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/issues/%d/comments", issue.Index), api.CreateIssueCommentOption{
+					Body: "This is a comment",
+				}).AddTokenAuth(env.User.Token)
+				resp := env.User.Session.MakeRequest(t, req, http.StatusCreated)
+				DecodeJSON(t, resp, &comment)
+
+				t.Run("LIST", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequest(t, "GET", env.APIPathForRepo("/issues/comments/%d/assets", comment.ID)).
+						AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusOK)
+				})
+				t.Run("CREATE", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					body, contentType := createAsset("overquota.png")
+					req := NewRequestWithBody(t, "POST", env.APIPathForRepo("/issues/comments/%d/assets", comment.ID), body).
+						AddTokenAuth(env.User.Token)
+					req.Header.Add("Content-Type", contentType)
+					env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+				})
+
+				t.Run("{attachment_id}", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					var attachment api.Attachment
+					env.WithoutQuota(t, func() {
+						body, contentType := createAsset("test.png")
+						req := NewRequestWithBody(t, "POST", env.APIPathForRepo("/issues/comments/%d/assets", comment.ID), body).
+							AddTokenAuth(env.User.Token)
+						req.Header.Add("Content-Type", contentType)
+						resp := env.User.Session.MakeRequest(t, req, http.StatusCreated)
+						DecodeJSON(t, resp, &attachment)
+					})
+
+					t.Run("GET", func(t *testing.T) {
+						defer tests.PrintCurrentTest(t)()
+
+						req := NewRequest(t, "GET", env.APIPathForRepo("/issues/comments/%d/assets/%d", comment.ID, attachment.ID)).
+							AddTokenAuth(env.User.Token)
+						env.User.Session.MakeRequest(t, req, http.StatusOK)
+					})
+					t.Run("UPDATE", func(t *testing.T) {
+						defer tests.PrintCurrentTest(t)()
+
+						req := NewRequestWithJSON(t, "PATCH", env.APIPathForRepo("/issues/comments/%d/assets/%d", comment.ID, attachment.ID), api.EditAttachmentOptions{
+							Name: "new-name.png",
+						}).AddTokenAuth(env.User.Token)
+						env.User.Session.MakeRequest(t, req, http.StatusCreated)
+					})
+					t.Run("DELETE", func(t *testing.T) {
+						defer tests.PrintCurrentTest(t)()
+
+						req := NewRequest(t, "DELETE", env.APIPathForRepo("/issues/comments/%d/assets/%d", comment.ID, attachment.ID)).
+							AddTokenAuth(env.User.Token)
+						env.User.Session.MakeRequest(t, req, http.StatusNoContent)
+					})
+				})
+			})
+		})
+
+		t.Run("pulls", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			// Fork the repository into the unlimited org first
+			req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/forks"), api.CreateForkOption{
+				Organization: &env.Orgs.Unlimited.UserName,
+			}).AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, http.StatusAccepted)
+
+			defer deleteRepo(t, env.Orgs.Unlimited.UserName+"/"+env.Repo.Name)
+
+			// Create a pull request!
+			//
+			// Creating a pull request this way does not increase the space of
+			// the base repo, so is not subject to quota enforcement.
+
+			req = NewRequestWithJSON(t, "POST", env.APIPathForRepo("/pulls"), api.CreatePullRequestOption{
+				Base:  "main",
+				Title: "test-pr",
+				Head:  fmt.Sprintf("%s:main", env.Orgs.Unlimited.UserName),
+			}).AddTokenAuth(env.User.Token)
+			resp := env.User.Session.MakeRequest(t, req, http.StatusCreated)
+
+			var pr api.PullRequest
+			DecodeJSON(t, resp, &pr)
+
+			t.Run("{index}", func(t *testing.T) {
+				t.Run("GET", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequest(t, "GET", env.APIPathForRepo("/pulls/%d", pr.Index)).
+						AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusOK)
+				})
+				t.Run("UPDATE", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequestWithJSON(t, "PATCH", env.APIPathForRepo("/pulls/%d", pr.Index), api.EditPullRequestOption{
+						Title: "Updated title",
+					}).AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusCreated)
+				})
+
+				t.Run("merge", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/pulls/%d/merge", pr.Index), forms.MergePullRequestForm{
+						Do: "merge",
+					}).AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+				})
+			})
+		})
+
+		t.Run("releases", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			var releaseID int64
+
+			// Create a release so that there's something to play with.
+			env.WithoutQuota(t, func() {
+				req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/releases"), api.CreateReleaseOption{
+					TagName: "play-release-tag",
+					Title:   "play-release",
+				}).AddTokenAuth(env.User.Token)
+				resp := env.User.Session.MakeRequest(t, req, http.StatusCreated)
+
+				var q api.Release
+				DecodeJSON(t, resp, &q)
+
+				releaseID = q.ID
+			})
+
+			t.Run("LIST", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				req := NewRequest(t, "GET", env.APIPathForRepo("/releases")).
+					AddTokenAuth(env.User.Token)
+				env.User.Session.MakeRequest(t, req, http.StatusOK)
+			})
+			t.Run("CREATE", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/releases"), api.CreateReleaseOption{
+					TagName: "play-release-tag-two",
+					Title:   "play-release-two",
+				}).AddTokenAuth(env.User.Token)
+				env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+			})
+
+			t.Run("tags/{tag}", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				// Create a release for our subtests
+				env.WithoutQuota(t, func() {
+					req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/releases"), api.CreateReleaseOption{
+						TagName: "play-release-tag-subtest",
+						Title:   "play-release-subtest",
+					}).AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusCreated)
+				})
+
+				t.Run("GET", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequest(t, "GET", env.APIPathForRepo("/releases/tags/play-release-tag-subtest")).
+						AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusOK)
+				})
+				t.Run("DELETE", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequest(t, "DELETE", env.APIPathForRepo("/releases/tags/play-release-tag-subtest")).
+						AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusNoContent)
+				})
+			})
+
+			t.Run("{id}", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				var tmpReleaseID int64
+
+				// Create a release so that there's something to play with.
+				env.WithoutQuota(t, func() {
+					req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/releases"), api.CreateReleaseOption{
+						TagName: "tmp-tag",
+						Title:   "tmp-release",
+					}).AddTokenAuth(env.User.Token)
+					resp := env.User.Session.MakeRequest(t, req, http.StatusCreated)
+
+					var q api.Release
+					DecodeJSON(t, resp, &q)
+
+					tmpReleaseID = q.ID
+				})
+
+				t.Run("GET", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequest(t, "GET", env.APIPathForRepo("/releases/%d", tmpReleaseID)).
+						AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusOK)
+				})
+				t.Run("UPDATE", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequestWithJSON(t, "PATCH", env.APIPathForRepo("/releases/%d", tmpReleaseID), api.EditReleaseOption{
+						TagName: "tmp-tag-two",
+					}).AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+				})
+				t.Run("DELETE", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequest(t, "DELETE", env.APIPathForRepo("/releases/%d", tmpReleaseID)).
+						AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusNoContent)
+				})
+
+				t.Run("assets", func(t *testing.T) {
+					t.Run("LIST", func(t *testing.T) {
+						defer tests.PrintCurrentTest(t)()
+
+						req := NewRequest(t, "GET", env.APIPathForRepo("/releases/%d/assets", releaseID)).
+							AddTokenAuth(env.User.Token)
+						env.User.Session.MakeRequest(t, req, http.StatusOK)
+					})
+					t.Run("CREATE", func(t *testing.T) {
+						defer tests.PrintCurrentTest(t)()
+
+						body := strings.NewReader("hello world")
+						req := NewRequestWithBody(t, "POST", env.APIPathForRepo("/releases/%d/assets?name=bar.txt", releaseID), body).
+							AddTokenAuth(env.User.Token)
+						req.Header.Add("Content-Type", "text/plain")
+						env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+					})
+
+					t.Run("{attachment_id}", func(t *testing.T) {
+						defer tests.PrintCurrentTest(t)()
+
+						var attachmentID int64
+
+						// Create an attachment to play with
+						env.WithoutQuota(t, func() {
+							body := strings.NewReader("hello world")
+							req := NewRequestWithBody(t, "POST", env.APIPathForRepo("/releases/%d/assets?name=foo.txt", releaseID), body).
+								AddTokenAuth(env.User.Token)
+							req.Header.Add("Content-Type", "text/plain")
+							resp := env.User.Session.MakeRequest(t, req, http.StatusCreated)
+
+							var q api.Attachment
+							DecodeJSON(t, resp, &q)
+
+							attachmentID = q.ID
+						})
+
+						t.Run("GET", func(t *testing.T) {
+							defer tests.PrintCurrentTest(t)()
+
+							req := NewRequest(t, "GET", env.APIPathForRepo("/releases/%d/assets/%d", releaseID, attachmentID)).
+								AddTokenAuth(env.User.Token)
+							env.User.Session.MakeRequest(t, req, http.StatusOK)
+						})
+						t.Run("UPDATE", func(t *testing.T) {
+							defer tests.PrintCurrentTest(t)()
+
+							req := NewRequestWithJSON(t, "PATCH", env.APIPathForRepo("/releases/%d/assets/%d", releaseID, attachmentID), api.EditAttachmentOptions{
+								Name: "new-name.txt",
+							}).AddTokenAuth(env.User.Token)
+							env.User.Session.MakeRequest(t, req, http.StatusCreated)
+						})
+						t.Run("DELETE", func(t *testing.T) {
+							defer tests.PrintCurrentTest(t)()
+
+							req := NewRequest(t, "DELETE", env.APIPathForRepo("/releases/%d/assets/%d", releaseID, attachmentID)).
+								AddTokenAuth(env.User.Token)
+							env.User.Session.MakeRequest(t, req, http.StatusNoContent)
+						})
+					})
+				})
+			})
+		})
+
+		t.Run("tags", func(t *testing.T) {
+			t.Run("LIST", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				req := NewRequest(t, "GET", env.APIPathForRepo("/tags")).
+					AddTokenAuth(env.User.Token)
+				env.User.Session.MakeRequest(t, req, http.StatusOK)
+			})
+			t.Run("CREATE", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/tags"), api.CreateTagOption{
+					TagName: "tag-quota-test",
+				}).AddTokenAuth(env.User.Token)
+				env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+			})
+
+			t.Run("{tag}", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				env.WithoutQuota(t, func() {
+					req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/tags"), api.CreateTagOption{
+						TagName: "tag-quota-test-2",
+					}).AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusCreated)
+				})
+
+				t.Run("GET", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequest(t, "GET", env.APIPathForRepo("/tags/tag-quota-test-2")).
+						AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusOK)
+				})
+				t.Run("DELETE", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					req := NewRequest(t, "DELETE", env.APIPathForRepo("/tags/tag-quota-test-2")).
+						AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusNoContent)
+				})
+			})
+		})
+
+		t.Run("transfer", func(t *testing.T) {
+			t.Run("to: limited", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				// Create a repository to transfer
+				repo, _, cleanup := CreateDeclarativeRepoWithOptions(t, env.User.User, DeclarativeRepoOptions{})
+				defer cleanup()
+
+				// Initiate repo transfer
+				req := NewRequestWithJSON(t, "POST", fmt.Sprintf("/api/v1/repos/%s/%s/transfer", env.User.User.Name, repo.Name), api.TransferRepoOption{
+					NewOwner: env.Dummy.User.Name,
+				}).AddTokenAuth(env.User.Token)
+				env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+
+				// Initiate it outside of quotas, so we can test accept/reject.
+				env.WithoutQuota(t, func() {
+					req := NewRequestWithJSON(t, "POST", fmt.Sprintf("/api/v1/repos/%s/%s/transfer", env.User.User.Name, repo.Name), api.TransferRepoOption{
+						NewOwner: env.Dummy.User.Name,
+					}).AddTokenAuth(env.User.Token)
+					env.User.Session.MakeRequest(t, req, http.StatusCreated)
+				}, "deny-all") // a bit of a hack, sorry!
+
+				// Try to accept the repo transfer
+				req = NewRequest(t, "POST", fmt.Sprintf("/api/v1/repos/%s/%s/transfer/accept", env.User.User.Name, repo.Name)).
+					AddTokenAuth(env.Dummy.Token)
+				env.Dummy.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+
+				// Then reject it.
+				req = NewRequest(t, "POST", fmt.Sprintf("/api/v1/repos/%s/%s/transfer/reject", env.User.User.Name, repo.Name)).
+					AddTokenAuth(env.Dummy.Token)
+				env.Dummy.Session.MakeRequest(t, req, http.StatusOK)
+			})
+
+			t.Run("to: unlimited", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				// Disable the quota for the dummy user
+				defer env.SetRuleLimit(t, "deny-all", -1)()
+
+				// Create a repository to transfer
+				repo, _, cleanup := CreateDeclarativeRepoWithOptions(t, env.User.User, DeclarativeRepoOptions{})
+				defer cleanup()
+
+				// Initiate repo transfer
+				req := NewRequestWithJSON(t, "POST", fmt.Sprintf("/api/v1/repos/%s/%s/transfer", env.User.User.Name, repo.Name), api.TransferRepoOption{
+					NewOwner: env.Dummy.User.Name,
+				}).AddTokenAuth(env.User.Token)
+				env.User.Session.MakeRequest(t, req, http.StatusCreated)
+
+				// Accept the repo transfer
+				req = NewRequest(t, "POST", fmt.Sprintf("/api/v1/repos/%s/%s/transfer/accept", env.User.User.Name, repo.Name)).
+					AddTokenAuth(env.Dummy.Token)
+				env.Dummy.Session.MakeRequest(t, req, http.StatusAccepted)
+			})
+		})
+	})
+
+	t.Run("#/packages/{owner}/{type}/{name}/{version}", func(t *testing.T) {
+		defer tests.PrintCurrentTest(t)()
+		defer env.SetRuleLimit(t, "all", 0)()
+
+		// Create a generic package to play with
+		env.WithoutQuota(t, func() {
+			body := strings.NewReader("forgejo is awesome")
+			req := NewRequestWithBody(t, "PUT", fmt.Sprintf("/api/packages/%s/generic/quota-test/1.0.0/test.txt", env.User.User.Name), body).
+				AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, http.StatusCreated)
+		})
+
+		t.Run("CREATE", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			body := strings.NewReader("forgejo is awesome")
+			req := NewRequestWithBody(t, "PUT", fmt.Sprintf("/api/packages/%s/generic/quota-test/1.0.0/overquota.txt", env.User.User.Name), body).
+				AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+		})
+
+		t.Run("GET", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			req := NewRequestf(t, "GET", "/api/v1/packages/%s/generic/quota-test/1.0.0", env.User.User.Name).
+				AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, http.StatusOK)
+		})
+		t.Run("DELETE", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			req := NewRequestf(t, "DELETE", "/api/v1/packages/%s/generic/quota-test/1.0.0", env.User.User.Name).
+				AddTokenAuth(env.User.Token)
+			env.User.Session.MakeRequest(t, req, http.StatusNoContent)
+		})
+	})
+}
+
+func TestAPIQuotaOrgQuotaQuery(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		env := prepareQuotaEnv(t, "quota-enforcement")
+		defer env.Cleanup()
+
+		env.SetupWithSingleQuotaRule(t)
+		env.AddUnlimitedOrg(t)
+		env.AddLimitedOrg(t)
+
+		// Look at the quota use of our user, and the unlimited org, for later
+		// comparison.
+		var userInfo api.QuotaInfo
+		req := NewRequest(t, "GET", "/api/v1/user/quota").AddTokenAuth(env.User.Token)
+		resp := env.User.Session.MakeRequest(t, req, http.StatusOK)
+		DecodeJSON(t, resp, &userInfo)
+
+		var orgInfo api.QuotaInfo
+		req = NewRequestf(t, "GET", "/api/v1/orgs/%s/quota", env.Orgs.Unlimited.Name).
+			AddTokenAuth(env.User.Token)
+		resp = env.User.Session.MakeRequest(t, req, http.StatusOK)
+		DecodeJSON(t, resp, &orgInfo)
+
+		assert.Positive(t, userInfo.Used.Size.Repos.Public)
+		assert.EqualValues(t, 0, orgInfo.Used.Size.Repos.Public)
+	})
+}
+
+func TestAPIQuotaUserBasics(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		env := prepareQuotaEnv(t, "quota-enforcement")
+		defer env.Cleanup()
+
+		env.SetupWithMultipleQuotaRules(t)
+
+		t.Run("quota usage change", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			req := NewRequest(t, "GET", "/api/v1/user/quota").AddTokenAuth(env.User.Token)
+			resp := env.User.Session.MakeRequest(t, req, http.StatusOK)
+
+			var q api.QuotaInfo
+			DecodeJSON(t, resp, &q)
+
+			assert.Positive(t, q.Used.Size.Repos.Public)
+			assert.Empty(t, q.Groups[0].Name)
+			assert.Empty(t, q.Groups[0].Rules[0].Name)
+
+			t.Run("admin view", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				req := NewRequestf(t, "GET", "/api/v1/admin/users/%s/quota", env.User.User.Name).AddTokenAuth(env.Admin.Token)
+				resp := env.Admin.Session.MakeRequest(t, req, http.StatusOK)
+
+				var q api.QuotaInfo
+				DecodeJSON(t, resp, &q)
+
+				assert.Positive(t, q.Used.Size.Repos.Public)
+
+				assert.NotEmpty(t, q.Groups[0].Name)
+				assert.NotEmpty(t, q.Groups[0].Rules[0].Name)
+			})
+		})
+
+		t.Run("quota check passing", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			req := NewRequest(t, "GET", "/api/v1/user/quota/check?subject=size:repos:all").AddTokenAuth(env.User.Token)
+			resp := env.User.Session.MakeRequest(t, req, http.StatusOK)
+
+			var q bool
+			DecodeJSON(t, resp, &q)
+
+			assert.True(t, q)
+		})
+
+		t.Run("quota check failing after limit change", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+			defer env.SetRuleLimit(t, "repo-size", 0)()
+
+			req := NewRequest(t, "GET", "/api/v1/user/quota/check?subject=size:repos:all").AddTokenAuth(env.User.Token)
+			resp := env.User.Session.MakeRequest(t, req, http.StatusOK)
+
+			var q bool
+			DecodeJSON(t, resp, &q)
+
+			assert.False(t, q)
+		})
+
+		t.Run("quota enforcement", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+			defer env.SetRuleLimit(t, "repo-size", 0)()
+
+			t.Run("repoCreateFile", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/contents/new-file.txt"), api.CreateFileOptions{
+					ContentBase64: base64.StdEncoding.EncodeToString([]byte("hello world")),
+				}).AddTokenAuth(env.User.Token)
+				env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+			})
+
+			t.Run("repoCreateBranch", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/branches"), api.CreateBranchRepoOption{
+					BranchName: "new-branch",
+				}).AddTokenAuth(env.User.Token)
+				env.User.Session.MakeRequest(t, req, http.StatusRequestEntityTooLarge)
+			})
+
+			t.Run("repoDeleteBranch", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				// Temporarily disable quota checking
+				defer env.SetRuleLimit(t, "repo-size", -1)()
+				defer env.SetRuleLimit(t, "all", -1)()
+
+				// Create a branch
+				req := NewRequestWithJSON(t, "POST", env.APIPathForRepo("/branches"), api.CreateBranchRepoOption{
+					BranchName: "branch-to-delete",
+				}).AddTokenAuth(env.User.Token)
+				env.User.Session.MakeRequest(t, req, http.StatusCreated)
+
+				// Set the limit back. No need to defer, the first one will set it
+				// back to the correct value.
+				env.SetRuleLimit(t, "all", 0)
+				env.SetRuleLimit(t, "repo-size", 0)
+
+				// Deleting a branch does not incur quota enforcement
+				req = NewRequest(t, "DELETE", env.APIPathForRepo("/branches/branch-to-delete")).AddTokenAuth(env.User.Token)
+				env.User.Session.MakeRequest(t, req, http.StatusNoContent)
+			})
+		})
+	})
+}
diff --git a/tests/integration/quota_use_test.go b/tests/integration/quota_use_test.go
new file mode 100644
index 0000000000..b1fa15045a
--- /dev/null
+++ b/tests/integration/quota_use_test.go
@@ -0,0 +1,1099 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package integration
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"mime/multipart"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"strings"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	org_model "code.gitea.io/gitea/models/organization"
+	quota_model "code.gitea.io/gitea/models/quota"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/setting"
+	api "code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/test"
+	"code.gitea.io/gitea/routers"
+	forgejo_context "code.gitea.io/gitea/services/context"
+	repo_service "code.gitea.io/gitea/services/repository"
+	"code.gitea.io/gitea/tests"
+
+	gouuid "github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestWebQuotaEnforcementRepoMigrate(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		env := createQuotaWebEnv(t)
+		defer env.Cleanup()
+
+		env.RunVisitAndPostToPageTests(t, "/repo/migrate", &Payload{
+			"repo_name":  "migration-test",
+			"clone_addr": env.Users.Limited.Repo.Link() + ".git",
+			"service":    fmt.Sprintf("%d", api.ForgejoService),
+		}, http.StatusOK)
+	})
+}
+
+func TestWebQuotaEnforcementRepoCreate(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		env := createQuotaWebEnv(t)
+		defer env.Cleanup()
+
+		env.RunVisitAndPostToPageTests(t, "/repo/create", nil, http.StatusOK)
+	})
+}
+
+func TestWebQuotaEnforcementRepoFork(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		env := createQuotaWebEnv(t)
+		defer env.Cleanup()
+
+		page := fmt.Sprintf("%s/fork", env.Users.Limited.Repo.Link())
+		env.RunVisitAndPostToPageTests(t, page, &Payload{
+			"repo_name": "fork-test",
+		}, http.StatusSeeOther)
+	})
+}
+
+func TestWebQuotaEnforcementIssueAttachment(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		env := createQuotaWebEnv(t)
+		defer env.Cleanup()
+
+		// Uploading to our repo => 413
+		env.As(t, env.Users.Limited).
+			With(Context{Repo: env.Users.Limited.Repo}).
+			CreateIssueAttachment("test.txt").
+			ExpectStatus(http.StatusRequestEntityTooLarge)
+
+		// Uploading to the limited org repo => 413
+		env.As(t, env.Users.Limited).
+			With(Context{Repo: env.Orgs.Limited.Repo}).
+			CreateIssueAttachment("test.txt").
+			ExpectStatus(http.StatusRequestEntityTooLarge)
+
+		// Uploading to the unlimited org repo => 200
+		env.As(t, env.Users.Limited).
+			With(Context{Repo: env.Orgs.Unlimited.Repo}).
+			CreateIssueAttachment("test.txt").
+			ExpectStatus(http.StatusOK)
+	})
+}
+
+func TestWebQuotaEnforcementMirrorSync(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		env := createQuotaWebEnv(t)
+		defer env.Cleanup()
+
+		var mirrorRepo *repo_model.Repository
+
+		env.As(t, env.Users.Limited).
+			WithoutQuota(func(ctx *quotaWebEnvAsContext) {
+				mirrorRepo = ctx.CreateMirror()
+			}).
+			With(Context{
+				Repo:    mirrorRepo,
+				Payload: &Payload{"action": "mirror-sync"},
+			}).
+			PostToPage(mirrorRepo.Link() + "/settings").
+			ExpectStatus(http.StatusOK).
+			ExpectFlashMessage("Quota exceeded, not pulling changes.")
+	})
+}
+
+func TestWebQuotaEnforcementRepoContentEditing(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		env := createQuotaWebEnv(t)
+		defer env.Cleanup()
+
+		// We're only going to test the GET requests here, because the entire combo
+		// is covered by a route check.
+
+		// Lets create a helper!
+		runCheck := func(t *testing.T, path string, successStatus int) {
+			t.Run("#"+path, func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				// Uploading to a limited user's repo => 413
+				env.As(t, env.Users.Limited).
+					VisitPage(env.Users.Limited.Repo.Link() + path).
+					ExpectStatus(http.StatusRequestEntityTooLarge)
+
+				// Limited org => 413
+				env.As(t, env.Users.Limited).
+					VisitPage(env.Orgs.Limited.Repo.Link() + path).
+					ExpectStatus(http.StatusRequestEntityTooLarge)
+
+				// Unlimited org => 200
+				env.As(t, env.Users.Limited).
+					VisitPage(env.Orgs.Unlimited.Repo.Link() + path).
+					ExpectStatus(successStatus)
+			})
+		}
+
+		paths := []string{
+			"/_new/main",
+			"/_edit/main/README.md",
+			"/_delete/main",
+			"/_upload/main",
+			"/_diffpatch/main",
+		}
+
+		for _, path := range paths {
+			runCheck(t, path, http.StatusOK)
+		}
+
+		// Run another check for `_cherrypick`. It's cumbersome to dig out a valid
+		// commit id, so we'll use a fake, and treat 404 as a success: it's not 413,
+		// and that's all we care about for this test.
+		runCheck(t, "/_cherrypick/92cfceb39d57d914ed8b14d0e37643de0797ae56/main", http.StatusNotFound)
+	})
+}
+
+func TestWebQuotaEnforcementRepoBranches(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		env := createQuotaWebEnv(t)
+		defer env.Cleanup()
+
+		t.Run("create", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			runTest := func(t *testing.T, path string) {
+				t.Run("#"+path, func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+
+					env.As(t, env.Users.Limited).
+						With(Context{Payload: &Payload{"new_branch_name": "quota"}}).
+						PostToRepoPage("/branches/_new" + path).
+						ExpectStatus(http.StatusRequestEntityTooLarge)
+
+					env.As(t, env.Users.Limited).
+						With(Context{
+							Payload: &Payload{"new_branch_name": "quota"},
+							Repo:    env.Orgs.Limited.Repo,
+						}).
+						PostToRepoPage("/branches/_new" + path).
+						ExpectStatus(http.StatusRequestEntityTooLarge)
+
+					env.As(t, env.Users.Limited).
+						With(Context{
+							Payload: &Payload{"new_branch_name": "quota"},
+							Repo:    env.Orgs.Unlimited.Repo,
+						}).
+						PostToRepoPage("/branches/_new" + path).
+						ExpectStatus(http.StatusNotFound)
+				})
+			}
+
+			// We're testing the first two against things that don't exist, so that
+			// all three consistently return 404 if no quota enforcement happens.
+			runTest(t, "/branch/no-such-branch")
+			runTest(t, "/tag/no-such-tag")
+			runTest(t, "/commit/92cfceb39d57d914ed8b14d0e37643de0797ae56")
+		})
+
+		t.Run("delete & restore", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			env.As(t, env.Users.Limited).
+				WithoutQuota(func(ctx *quotaWebEnvAsContext) {
+					ctx.With(Context{Payload: &Payload{"new_branch_name": "to-delete"}}).
+						PostToRepoPage("/branches/_new/branch/main").
+						ExpectStatus(http.StatusSeeOther)
+				})
+
+			env.As(t, env.Users.Limited).
+				PostToRepoPage("/branches/delete?name=to-delete").
+				ExpectStatus(http.StatusOK)
+
+			env.As(t, env.Users.Limited).
+				PostToRepoPage("/branches/restore?name=to-delete").
+				ExpectStatus(http.StatusOK)
+		})
+	})
+}
+
+func TestWebQuotaEnforcementRepoReleases(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		env := createQuotaWebEnv(t)
+		defer env.Cleanup()
+
+		env.RunVisitAndPostToRepoPageTests(t, "/releases/new", &Payload{
+			"tag_name":   "quota",
+			"tag_target": "main",
+			"title":      "test release",
+		}, http.StatusSeeOther)
+
+		t.Run("attachments", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			// Uploading to our repo => 413
+			env.As(t, env.Users.Limited).
+				With(Context{Repo: env.Users.Limited.Repo}).
+				CreateReleaseAttachment("test.txt").
+				ExpectStatus(http.StatusRequestEntityTooLarge)
+
+			// Uploading to the limited org repo => 413
+			env.As(t, env.Users.Limited).
+				With(Context{Repo: env.Orgs.Limited.Repo}).
+				CreateReleaseAttachment("test.txt").
+				ExpectStatus(http.StatusRequestEntityTooLarge)
+
+			// Uploading to the unlimited org repo => 200
+			env.As(t, env.Users.Limited).
+				With(Context{Repo: env.Orgs.Unlimited.Repo}).
+				CreateReleaseAttachment("test.txt").
+				ExpectStatus(http.StatusOK)
+		})
+	})
+}
+
+func TestWebQuotaEnforcementRepoPulls(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		env := createQuotaWebEnv(t)
+		defer env.Cleanup()
+
+		// To create a pull request, we first fork the two limited repos into the
+		// unlimited org.
+		env.As(t, env.Users.Limited).
+			With(Context{Repo: env.Users.Limited.Repo}).
+			ForkRepoInto(env.Orgs.Unlimited)
+		env.As(t, env.Users.Limited).
+			With(Context{Repo: env.Orgs.Limited.Repo}).
+			ForkRepoInto(env.Orgs.Unlimited)
+
+		// Then, create pull requests from the forks, back to the main repos
+		env.As(t, env.Users.Limited).
+			With(Context{Repo: env.Users.Limited.Repo}).
+			CreatePullFrom(env.Orgs.Unlimited)
+		env.As(t, env.Users.Limited).
+			With(Context{Repo: env.Orgs.Limited.Repo}).
+			CreatePullFrom(env.Orgs.Unlimited)
+
+		// Trying to merge the pull request will fail for both, though, due to being
+		// over quota.
+		env.As(t, env.Users.Limited).
+			With(Context{Repo: env.Users.Limited.Repo}).
+			With(Context{Payload: &Payload{"do": "merge"}}).
+			PostToRepoPage("/pulls/1/merge").
+			ExpectStatus(http.StatusRequestEntityTooLarge)
+
+		env.As(t, env.Users.Limited).
+			With(Context{Repo: env.Orgs.Limited.Repo}).
+			With(Context{Payload: &Payload{"do": "merge"}}).
+			PostToRepoPage("/pulls/1/merge").
+			ExpectStatus(http.StatusRequestEntityTooLarge)
+	})
+}
+
+func TestWebQuotaEnforcementRepoTransfer(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		env := createQuotaWebEnv(t)
+		defer env.Cleanup()
+
+		t.Run("direct transfer", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			// Trying to transfer the repository to a limited organization fails.
+			env.As(t, env.Users.Limited).
+				With(Context{Repo: env.Users.Limited.Repo}).
+				With(Context{Payload: &Payload{
+					"action":         "transfer",
+					"repo_name":      env.Users.Limited.Repo.FullName(),
+					"new_owner_name": env.Orgs.Limited.Org.Name,
+				}}).
+				PostToRepoPage("/settings").
+				ExpectStatus(http.StatusOK).
+				ExpectFlashMessageContains("over quota", "The repository has not been transferred")
+
+			// Trying to transfer to a different, also limited user, also fails.
+			env.As(t, env.Users.Limited).
+				With(Context{Repo: env.Users.Limited.Repo}).
+				With(Context{Payload: &Payload{
+					"action":         "transfer",
+					"repo_name":      env.Users.Limited.Repo.FullName(),
+					"new_owner_name": env.Users.Contributor.User.Name,
+				}}).
+				PostToRepoPage("/settings").
+				ExpectStatus(http.StatusOK).
+				ExpectFlashMessageContains("over quota", "The repository has not been transferred")
+		})
+
+		t.Run("accept & reject", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			// Trying to transfer to a different user, with quota lifted, starts the transfer
+			env.As(t, env.Users.Contributor).
+				WithoutQuota(func(ctx *quotaWebEnvAsContext) {
+					env.As(ctx.t, env.Users.Limited).
+						With(Context{Repo: env.Users.Limited.Repo}).
+						With(Context{Payload: &Payload{
+							"action":         "transfer",
+							"repo_name":      env.Users.Limited.Repo.FullName(),
+							"new_owner_name": env.Users.Contributor.User.Name,
+						}}).
+						PostToRepoPage("/settings").
+						ExpectStatus(http.StatusSeeOther).
+						ExpectFlashCookieContains("This repository has been marked for transfer and awaits confirmation")
+				})
+
+			// Trying to accept the transfer, with quota in effect, fails
+			env.As(t, env.Users.Contributor).
+				With(Context{Repo: env.Users.Limited.Repo}).
+				PostToRepoPage("/action/accept_transfer").
+				ExpectStatus(http.StatusRequestEntityTooLarge)
+
+			// Rejecting the transfer, however, succeeds.
+			env.As(t, env.Users.Contributor).
+				With(Context{Repo: env.Users.Limited.Repo}).
+				PostToRepoPage("/action/reject_transfer").
+				ExpectStatus(http.StatusSeeOther)
+		})
+	})
+}
+
+func TestGitQuotaEnforcement(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		env := createQuotaWebEnv(t)
+		defer env.Cleanup()
+
+		// Lets create a little helper that runs a task for three of our repos: the
+		// user's repo, the limited org repo, and the unlimited org's.
+		//
+		// We expect the last one to always work, and the expected status of the
+		// other two is decided by the caller.
+		runTestForAllRepos := func(t *testing.T, task func(t *testing.T, repo *repo_model.Repository) error, expectSuccess bool) {
+			t.Helper()
+
+			err := task(t, env.Users.Limited.Repo)
+			if expectSuccess {
+				require.NoError(t, err)
+			} else {
+				require.Error(t, err)
+			}
+
+			err = task(t, env.Orgs.Limited.Repo)
+			if expectSuccess {
+				require.NoError(t, err)
+			} else {
+				require.Error(t, err)
+			}
+
+			err = task(t, env.Orgs.Unlimited.Repo)
+			require.NoError(t, err)
+		}
+
+		// Run tests with quotas disabled
+		runTestForAllReposWithQuotaDisabled := func(t *testing.T, task func(t *testing.T, repo *repo_model.Repository) error) {
+			t.Helper()
+
+			t.Run("with quota disabled", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+				defer test.MockVariableValue(&setting.Quota.Enabled, false)()
+				defer test.MockVariableValue(&testWebRoutes, routers.NormalRoutes())()
+
+				runTestForAllRepos(t, task, true)
+			})
+		}
+
+		t.Run("push branch", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			// Pushing a new branch is denied if the user is over quota.
+			runTestForAllRepos(t, func(t *testing.T, repo *repo_model.Repository) error {
+				return env.As(t, env.Users.Limited).
+					With(Context{Repo: repo}).
+					LocalClone(u).
+					Push("HEAD:new-branch")
+			}, false)
+
+			// Pushing a new branch is always allowed if quota is disabled
+			runTestForAllReposWithQuotaDisabled(t, func(t *testing.T, repo *repo_model.Repository) error {
+				return env.As(t, env.Users.Limited).
+					With(Context{Repo: repo}).
+					LocalClone(u).
+					Push("HEAD:new-branch-wo-quota")
+			})
+		})
+
+		t.Run("push tag", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			// Pushing a tag is denied if the user is over quota.
+			runTestForAllRepos(t, func(t *testing.T, repo *repo_model.Repository) error {
+				return env.As(t, env.Users.Limited).
+					With(Context{Repo: repo}).
+					LocalClone(u).
+					Tag("new-tag").
+					Push("new-tag")
+			}, false)
+
+			// ...but succeeds if the quota feature is disabled
+			runTestForAllReposWithQuotaDisabled(t, func(t *testing.T, repo *repo_model.Repository) error {
+				return env.As(t, env.Users.Limited).
+					With(Context{Repo: repo}).
+					LocalClone(u).
+					Tag("new-tag-wo-quota").
+					Push("new-tag-wo-quota")
+			})
+		})
+
+		t.Run("Agit PR", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			// Opening an Agit PR is *always* accepted. At least for now.
+			runTestForAllRepos(t, func(t *testing.T, repo *repo_model.Repository) error {
+				return env.As(t, env.Users.Limited).
+					With(Context{Repo: repo}).
+					LocalClone(u).
+					Push("HEAD:refs/for/main/agit-pr-branch")
+			}, true)
+		})
+
+		t.Run("delete branch", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			// Deleting a branch is respected, and allowed.
+			err := env.As(t, env.Users.Limited).
+				WithoutQuota(func(ctx *quotaWebEnvAsContext) {
+					err := ctx.
+						LocalClone(u).
+						Push("HEAD:branch-to-delete")
+					require.NoError(ctx.t, err)
+				}).
+				Push(":branch-to-delete")
+			require.NoError(t, err)
+		})
+
+		t.Run("delete tag", func(t *testing.T) {
+			defer tests.PrintCurrentTest(t)()
+
+			// Deleting a tag is always allowed.
+			err := env.As(t, env.Users.Limited).
+				WithoutQuota(func(ctx *quotaWebEnvAsContext) {
+					err := ctx.
+						LocalClone(u).
+						Tag("tag-to-delete").
+						Push("tag-to-delete")
+					require.NoError(ctx.t, err)
+				}).
+				Push(":tag-to-delete")
+			require.NoError(t, err)
+		})
+
+		t.Run("mixed push", func(t *testing.T) {
+			t.Run("all deletes", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				// Pushing multiple deletes is allowed.
+				err := env.As(t, env.Users.Limited).
+					WithoutQuota(func(ctx *quotaWebEnvAsContext) {
+						err := ctx.
+							LocalClone(u).
+							Tag("mixed-push-tag").
+							Push("mixed-push-tag", "HEAD:mixed-push-branch")
+						require.NoError(ctx.t, err)
+					}).
+					Push(":mixed-push-tag", ":mixed-push-branch")
+				require.NoError(t, err)
+			})
+
+			t.Run("new & delete", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				// Pushing a mix of deletions & a new branch is rejected together.
+				err := env.As(t, env.Users.Limited).
+					WithoutQuota(func(ctx *quotaWebEnvAsContext) {
+						err := ctx.
+							LocalClone(u).
+							Tag("mixed-push-tag").
+							Push("mixed-push-tag", "HEAD:mixed-push-branch")
+						require.NoError(ctx.t, err)
+					}).
+					Push(":mixed-push-tag", ":mixed-push-branch", "HEAD:mixed-push-branch-new")
+				require.Error(t, err)
+
+				// ...unless quota is disabled
+				t.Run("with quota disabled", func(t *testing.T) {
+					defer tests.PrintCurrentTest(t)()
+					defer test.MockVariableValue(&setting.Quota.Enabled, false)()
+					defer test.MockVariableValue(&testWebRoutes, routers.NormalRoutes())()
+
+					err := env.As(t, env.Users.Limited).
+						WithoutQuota(func(ctx *quotaWebEnvAsContext) {
+							err := ctx.
+								LocalClone(u).
+								Tag("mixed-push-tag-2").
+								Push("mixed-push-tag-2", "HEAD:mixed-push-branch-2")
+							require.NoError(ctx.t, err)
+						}).
+						Push(":mixed-push-tag-2", ":mixed-push-branch-2", "HEAD:mixed-push-branch-new-2")
+					require.NoError(t, err)
+				})
+			})
+		})
+	})
+}
+
+/**********************
+ * Here be dragons!   *
+ *                    *
+ *      .             *
+ *  .>   )\;`a__      *
+ * (  _ _)/ /-." ~~   *
+ *  `( )_ )/          *
+ *  <_  <_ sb/dwb     *
+ **********************/
+
+type quotaWebEnv struct {
+	Users quotaWebEnvUsers
+	Orgs  quotaWebEnvOrgs
+
+	cleaners []func()
+}
+
+type quotaWebEnvUsers struct {
+	Limited     quotaWebEnvUser
+	Contributor quotaWebEnvUser
+}
+
+type quotaWebEnvOrgs struct {
+	Limited   quotaWebEnvOrg
+	Unlimited quotaWebEnvOrg
+}
+
+type quotaWebEnvOrg struct {
+	Org *org_model.Organization
+
+	Repo *repo_model.Repository
+
+	QuotaGroup *quota_model.Group
+	QuotaRule  *quota_model.Rule
+}
+
+type quotaWebEnvUser struct {
+	User    *user_model.User
+	Session *TestSession
+	Repo    *repo_model.Repository
+
+	QuotaGroup *quota_model.Group
+	QuotaRule  *quota_model.Rule
+}
+
+type Payload map[string]string
+
+type quotaWebEnvAsContext struct {
+	t *testing.T
+
+	Doer *quotaWebEnvUser
+	Repo *repo_model.Repository
+
+	Payload Payload
+
+	CSRFPath *string
+
+	gitPath string
+
+	request  *RequestWrapper
+	response *httptest.ResponseRecorder
+}
+
+type Context struct {
+	Repo     *repo_model.Repository
+	Payload  *Payload
+	CSRFPath *string
+}
+
+func (ctx *quotaWebEnvAsContext) With(opts Context) *quotaWebEnvAsContext {
+	if opts.Repo != nil {
+		ctx.Repo = opts.Repo
+	}
+	if opts.Payload != nil {
+		for key, value := range *opts.Payload {
+			ctx.Payload[key] = value
+		}
+	}
+	if opts.CSRFPath != nil {
+		ctx.CSRFPath = opts.CSRFPath
+	}
+	return ctx
+}
+
+func (ctx *quotaWebEnvAsContext) VisitPage(page string) *quotaWebEnvAsContext {
+	ctx.t.Helper()
+
+	ctx.request = NewRequest(ctx.t, "GET", page)
+
+	return ctx
+}
+
+func (ctx *quotaWebEnvAsContext) VisitRepoPage(page string) *quotaWebEnvAsContext {
+	ctx.t.Helper()
+
+	return ctx.VisitPage(ctx.Repo.Link() + page)
+}
+
+func (ctx *quotaWebEnvAsContext) ExpectStatus(status int) *quotaWebEnvAsContext {
+	ctx.t.Helper()
+
+	ctx.response = ctx.Doer.Session.MakeRequest(ctx.t, ctx.request, status)
+
+	return ctx
+}
+
+func (ctx *quotaWebEnvAsContext) ExpectFlashMessage(value string) {
+	ctx.t.Helper()
+
+	htmlDoc := NewHTMLParser(ctx.t, ctx.response.Body)
+	flashMessage := strings.TrimSpace(htmlDoc.Find(`.flash-message`).Text())
+
+	assert.EqualValues(ctx.t, value, flashMessage)
+}
+
+func (ctx *quotaWebEnvAsContext) ExpectFlashMessageContains(parts ...string) {
+	ctx.t.Helper()
+
+	htmlDoc := NewHTMLParser(ctx.t, ctx.response.Body)
+	flashMessage := strings.TrimSpace(htmlDoc.Find(`.flash-message`).Text())
+
+	for _, part := range parts {
+		assert.Contains(ctx.t, flashMessage, part)
+	}
+}
+
+func (ctx *quotaWebEnvAsContext) ExpectFlashCookieContains(parts ...string) {
+	ctx.t.Helper()
+
+	flashCookie := ctx.Doer.Session.GetCookie(forgejo_context.CookieNameFlash)
+	assert.NotNil(ctx.t, flashCookie)
+
+	// Need to decode the cookie twice
+	flashValue, err := url.QueryUnescape(flashCookie.Value)
+	require.NoError(ctx.t, err)
+	flashValue, err = url.QueryUnescape(flashValue)
+	require.NoError(ctx.t, err)
+
+	for _, part := range parts {
+		assert.Contains(ctx.t, flashValue, part)
+	}
+}
+
+func (ctx *quotaWebEnvAsContext) ForkRepoInto(org quotaWebEnvOrg) {
+	ctx.t.Helper()
+
+	ctx.
+		With(Context{Payload: &Payload{
+			"uid":       org.ID().AsString(),
+			"repo_name": ctx.Repo.Name + "-fork",
+		}}).
+		PostToRepoPage("/fork").
+		ExpectStatus(http.StatusSeeOther)
+}
+
+func (ctx *quotaWebEnvAsContext) CreatePullFrom(org quotaWebEnvOrg) {
+	ctx.t.Helper()
+
+	url := fmt.Sprintf("/compare/main...%s:main", org.Org.Name)
+	ctx.
+		With(Context{Payload: &Payload{
+			"title": "PR test",
+		}}).
+		PostToRepoPage(url).
+		ExpectStatus(http.StatusOK)
+}
+
+func (ctx *quotaWebEnvAsContext) PostToPage(page string) *quotaWebEnvAsContext {
+	ctx.t.Helper()
+
+	payload := ctx.Payload
+	csrfPath := page
+	if ctx.CSRFPath != nil {
+		csrfPath = *ctx.CSRFPath
+	}
+
+	payload["_csrf"] = GetCSRF(ctx.t, ctx.Doer.Session, csrfPath)
+
+	ctx.request = NewRequestWithValues(ctx.t, "POST", page, payload)
+
+	return ctx
+}
+
+func (ctx *quotaWebEnvAsContext) PostToRepoPage(page string) *quotaWebEnvAsContext {
+	ctx.t.Helper()
+
+	csrfPath := ctx.Repo.Link()
+	return ctx.With(Context{CSRFPath: &csrfPath}).PostToPage(ctx.Repo.Link() + page)
+}
+
+func (ctx *quotaWebEnvAsContext) CreateAttachment(filename, attachmentType string) *quotaWebEnvAsContext {
+	ctx.t.Helper()
+
+	body := &bytes.Buffer{}
+	image := generateImg()
+
+	// Setup multi-part
+	writer := multipart.NewWriter(body)
+	part, err := writer.CreateFormFile("file", filename)
+	require.NoError(ctx.t, err)
+	_, err = io.Copy(part, &image)
+	require.NoError(ctx.t, err)
+	err = writer.Close()
+	require.NoError(ctx.t, err)
+
+	csrf := GetCSRF(ctx.t, ctx.Doer.Session, ctx.Repo.Link())
+
+	ctx.request = NewRequestWithBody(ctx.t, "POST", fmt.Sprintf("%s/%s/attachments", ctx.Repo.Link(), attachmentType), body)
+	ctx.request.Header.Add("X-Csrf-Token", csrf)
+	ctx.request.Header.Add("Content-Type", writer.FormDataContentType())
+
+	return ctx
+}
+
+func (ctx *quotaWebEnvAsContext) CreateIssueAttachment(filename string) *quotaWebEnvAsContext {
+	ctx.t.Helper()
+
+	return ctx.CreateAttachment(filename, "issues")
+}
+
+func (ctx *quotaWebEnvAsContext) CreateReleaseAttachment(filename string) *quotaWebEnvAsContext {
+	ctx.t.Helper()
+
+	return ctx.CreateAttachment(filename, "releases")
+}
+
+func (ctx *quotaWebEnvAsContext) WithoutQuota(task func(ctx *quotaWebEnvAsContext)) *quotaWebEnvAsContext {
+	ctx.t.Helper()
+
+	defer ctx.Doer.SetQuota(-1)()
+	task(ctx)
+
+	return ctx
+}
+
+func (ctx *quotaWebEnvAsContext) CreateMirror() *repo_model.Repository {
+	ctx.t.Helper()
+
+	doer := ctx.Doer.User
+
+	repo, err := repo_service.CreateRepositoryDirectly(db.DefaultContext, doer, doer, repo_service.CreateRepoOptions{
+		Name:     "test-mirror",
+		IsMirror: true,
+		Status:   repo_model.RepositoryBeingMigrated,
+	})
+	require.NoError(ctx.t, err)
+
+	return repo
+}
+
+func (ctx *quotaWebEnvAsContext) LocalClone(u *url.URL) *quotaWebEnvAsContext {
+	ctx.t.Helper()
+
+	gitPath := ctx.t.TempDir()
+
+	doGitInitTestRepository(gitPath, git.Sha1ObjectFormat)(ctx.t)
+
+	oldPath := u.Path
+	oldUser := u.User
+	defer func() {
+		u.Path = oldPath
+		u.User = oldUser
+	}()
+	u.Path = ctx.Repo.FullName() + ".git"
+	u.User = url.UserPassword(ctx.Doer.User.LowerName, userPassword)
+
+	doGitAddRemote(gitPath, "origin", u)(ctx.t)
+
+	ctx.gitPath = gitPath
+
+	return ctx
+}
+
+func (ctx *quotaWebEnvAsContext) Push(params ...string) error {
+	ctx.t.Helper()
+
+	gitRepo, err := git.OpenRepository(git.DefaultContext, ctx.gitPath)
+	require.NoError(ctx.t, err)
+	defer gitRepo.Close()
+
+	_, _, err = git.NewCommand(git.DefaultContext, "push", "origin").
+		AddArguments(git.ToTrustedCmdArgs(params)...).
+		RunStdString(&git.RunOpts{Dir: ctx.gitPath})
+
+	return err
+}
+
+func (ctx *quotaWebEnvAsContext) Tag(tagName string) *quotaWebEnvAsContext {
+	ctx.t.Helper()
+
+	gitRepo, err := git.OpenRepository(git.DefaultContext, ctx.gitPath)
+	require.NoError(ctx.t, err)
+	defer gitRepo.Close()
+
+	_, _, err = git.NewCommand(git.DefaultContext, "tag").
+		AddArguments(git.ToTrustedCmdArgs([]string{tagName})...).
+		RunStdString(&git.RunOpts{Dir: ctx.gitPath})
+	require.NoError(ctx.t, err)
+
+	return ctx
+}
+
+func (user *quotaWebEnvUser) SetQuota(limit int64) func() {
+	previousLimit := user.QuotaRule.Limit
+
+	user.QuotaRule.Limit = limit
+	user.QuotaRule.Edit(db.DefaultContext, &limit, nil)
+
+	return func() {
+		user.QuotaRule.Limit = previousLimit
+		user.QuotaRule.Edit(db.DefaultContext, &previousLimit, nil)
+	}
+}
+
+func (user *quotaWebEnvUser) ID() convertAs {
+	return convertAs{
+		asString: fmt.Sprintf("%d", user.User.ID),
+	}
+}
+
+func (org *quotaWebEnvOrg) ID() convertAs {
+	return convertAs{
+		asString: fmt.Sprintf("%d", org.Org.ID),
+	}
+}
+
+type convertAs struct {
+	asString string
+}
+
+func (cas convertAs) AsString() string {
+	return cas.asString
+}
+
+func (env *quotaWebEnv) Cleanup() {
+	for i := len(env.cleaners) - 1; i >= 0; i-- {
+		env.cleaners[i]()
+	}
+}
+
+func (env *quotaWebEnv) As(t *testing.T, user quotaWebEnvUser) *quotaWebEnvAsContext {
+	t.Helper()
+
+	ctx := quotaWebEnvAsContext{
+		t:    t,
+		Doer: &user,
+		Repo: user.Repo,
+
+		Payload: Payload{},
+	}
+	return &ctx
+}
+
+func (env *quotaWebEnv) RunVisitAndPostToRepoPageTests(t *testing.T, page string, payload *Payload, successStatus int) {
+	t.Helper()
+
+	// Visiting the user's repo page fails due to being over quota.
+	env.As(t, env.Users.Limited).
+		With(Context{Repo: env.Users.Limited.Repo}).
+		VisitRepoPage(page).
+		ExpectStatus(http.StatusRequestEntityTooLarge)
+
+	// Posting as the limited user, to the limited repo, fails due to being over
+	// quota.
+	csrfPath := env.Users.Limited.Repo.Link()
+	env.As(t, env.Users.Limited).
+		With(Context{
+			Payload:  payload,
+			CSRFPath: &csrfPath,
+			Repo:     env.Users.Limited.Repo,
+		}).
+		PostToRepoPage(page).
+		ExpectStatus(http.StatusRequestEntityTooLarge)
+
+	// Visiting the limited org's repo page fails due to being over quota.
+	env.As(t, env.Users.Limited).
+		With(Context{Repo: env.Orgs.Limited.Repo}).
+		VisitRepoPage(page).
+		ExpectStatus(http.StatusRequestEntityTooLarge)
+
+	// Posting as the limited user, to a limited org's repo, fails for the same
+	// reason.
+	csrfPath = env.Orgs.Limited.Repo.Link()
+	env.As(t, env.Users.Limited).
+		With(Context{
+			Payload:  payload,
+			CSRFPath: &csrfPath,
+			Repo:     env.Orgs.Limited.Repo,
+		}).
+		PostToRepoPage(page).
+		ExpectStatus(http.StatusRequestEntityTooLarge)
+
+	// Visiting the repo page for the unlimited org succeeds.
+	env.As(t, env.Users.Limited).
+		With(Context{Repo: env.Orgs.Unlimited.Repo}).
+		VisitRepoPage(page).
+		ExpectStatus(http.StatusOK)
+
+	// Posting as the limited user, to an unlimited org's repo, succeeds.
+	csrfPath = env.Orgs.Unlimited.Repo.Link()
+	env.As(t, env.Users.Limited).
+		With(Context{
+			Payload:  payload,
+			CSRFPath: &csrfPath,
+			Repo:     env.Orgs.Unlimited.Repo,
+		}).
+		PostToRepoPage(page).
+		ExpectStatus(successStatus)
+}
+
+func (env *quotaWebEnv) RunVisitAndPostToPageTests(t *testing.T, page string, payload *Payload, successStatus int) {
+	t.Helper()
+
+	// Visiting the page is always fine.
+	env.As(t, env.Users.Limited).
+		VisitPage(page).
+		ExpectStatus(http.StatusOK)
+
+	// Posting as the Limited user fails, because it is over quota.
+	env.As(t, env.Users.Limited).
+		With(Context{Payload: payload}).
+		With(Context{
+			Payload: &Payload{
+				"uid": env.Users.Limited.ID().AsString(),
+			},
+		}).
+		PostToPage(page).
+		ExpectStatus(http.StatusRequestEntityTooLarge)
+
+	// Posting to a limited org also fails, for the same reason.
+	env.As(t, env.Users.Limited).
+		With(Context{Payload: payload}).
+		With(Context{
+			Payload: &Payload{
+				"uid": env.Orgs.Limited.ID().AsString(),
+			},
+		}).
+		PostToPage(page).
+		ExpectStatus(http.StatusRequestEntityTooLarge)
+
+	// Posting to an unlimited repo works, however.
+	env.As(t, env.Users.Limited).
+		With(Context{Payload: payload}).
+		With(Context{
+			Payload: &Payload{
+				"uid": env.Orgs.Unlimited.ID().AsString(),
+			},
+		}).
+		PostToPage(page).
+		ExpectStatus(successStatus)
+}
+
+func createQuotaWebEnv(t *testing.T) *quotaWebEnv {
+	t.Helper()
+
+	// *** helpers ***
+
+	// Create a user, its quota group & rule
+	makeUser := func(t *testing.T, limit int64) quotaWebEnvUser {
+		t.Helper()
+
+		user := quotaWebEnvUser{}
+
+		// Create the user
+		userName := gouuid.NewString()
+		apiCreateUser(t, userName)
+		user.User = unittest.AssertExistsAndLoadBean(t, &user_model.User{Name: userName})
+		user.Session = loginUser(t, userName)
+
+		// Create a repository for the user
+		repo, _, _ := CreateDeclarativeRepoWithOptions(t, user.User, DeclarativeRepoOptions{})
+		user.Repo = repo
+
+		// Create a quota group for them
+		group, err := quota_model.CreateGroup(db.DefaultContext, userName)
+		require.NoError(t, err)
+		user.QuotaGroup = group
+
+		// Create a rule
+		rule, err := quota_model.CreateRule(db.DefaultContext, userName, limit, quota_model.LimitSubjects{quota_model.LimitSubjectSizeAll})
+		require.NoError(t, err)
+		user.QuotaRule = rule
+
+		// Add the rule to the group
+		err = group.AddRuleByName(db.DefaultContext, rule.Name)
+		require.NoError(t, err)
+
+		// Add the user to the group
+		err = group.AddUserByID(db.DefaultContext, user.User.ID)
+		require.NoError(t, err)
+
+		return user
+	}
+
+	// Create a user, its quota group & rule
+	makeOrg := func(t *testing.T, owner *user_model.User, limit int64) quotaWebEnvOrg {
+		t.Helper()
+
+		org := quotaWebEnvOrg{}
+
+		// Create the org
+		userName := gouuid.NewString()
+		org.Org = &org_model.Organization{
+			Name: userName,
+		}
+		err := org_model.CreateOrganization(db.DefaultContext, org.Org, owner)
+		require.NoError(t, err)
+
+		// Create a repository for the org
+		orgUser := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: org.Org.ID})
+		repo, _, _ := CreateDeclarativeRepoWithOptions(t, orgUser, DeclarativeRepoOptions{})
+		org.Repo = repo
+
+		// Create a quota group for them
+		group, err := quota_model.CreateGroup(db.DefaultContext, userName)
+		require.NoError(t, err)
+		org.QuotaGroup = group
+
+		// Create a rule
+		rule, err := quota_model.CreateRule(db.DefaultContext, userName, limit, quota_model.LimitSubjects{quota_model.LimitSubjectSizeAll})
+		require.NoError(t, err)
+		org.QuotaRule = rule
+
+		// Add the rule to the group
+		err = group.AddRuleByName(db.DefaultContext, rule.Name)
+		require.NoError(t, err)
+
+		// Add the org to the group
+		err = group.AddUserByID(db.DefaultContext, org.Org.ID)
+		require.NoError(t, err)
+
+		return org
+	}
+
+	env := quotaWebEnv{}
+	env.cleaners = []func(){
+		test.MockVariableValue(&setting.Quota.Enabled, true),
+		test.MockVariableValue(&testWebRoutes, routers.NormalRoutes()),
+	}
+
+	// Create the limited user and the various orgs, and a contributor who's not
+	// in any of the orgs.
+	env.Users.Limited = makeUser(t, int64(0))
+	env.Users.Contributor = makeUser(t, int64(0))
+	env.Orgs.Limited = makeOrg(t, env.Users.Limited.User, int64(0))
+	env.Orgs.Unlimited = makeOrg(t, env.Users.Limited.User, int64(-1))
+
+	return &env
+}