add basic rate limiting, misc refactor
alex wennerberg alex@alexwennerberg.com
Sun, 06 Dec 2020 01:26:57 -0800
M
go.mod
→
go.mod
@@ -8,5 +8,7 @@ github.com/BurntSushi/toml v0.3.1
github.com/gorilla/handlers v1.5.1 github.com/gorilla/sessions v1.2.1 github.com/mattn/go-sqlite3 v1.14.4 - golang.org/x/crypto v0.0.0-20200115085410-6d4e4cb37c7d + github.com/ulule/limiter/v3 v3.7.1 + golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 + golang.org/x/time v0.0.0-20200630173020-3af7569d3a1e )
M
go.sum
→
go.sum
@@ -12,22 +12,113 @@ git.sr.ht/~adnano/go-gemini v0.1.8 h1:93DxDNXB0bjnfDhZewf+QsEopfuOMh/I4v7ujoJ6WIs=
git.sr.ht/~adnano/go-gemini v0.1.8/go.mod h1:If1VxEWcZDrRt5FeAFnGTcM2Ud1E3BXs3VJ5rnZWKq0= github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ= github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/andybalholm/brotli v1.0.0/go.mod h1:loMXtMfwqflxFJPmdbJO0a3KNoPuLBgiu3qAvBg8x/Y= +github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc= github.com/felixge/httpsnoop v1.0.1 h1:lvB5Jl89CsZtGIWuTcDM1E/vkVs49/Ml7JJe07l8SPQ= github.com/felixge/httpsnoop v1.0.1/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U= +github.com/fsnotify/fsnotify v1.4.7/go.mod 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v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg= github.com/gorilla/handlers v1.5.1 h1:9lRY6j8DEeeBT10CvO9hGW0gmky0BprnvDI5vfhUHH4= github.com/gorilla/handlers v1.5.1/go.mod h1:t8XrUpc4KVXb7HGyJ4/cEnwQiaxrX/hz1Zv/4g96P1Q= github.com/gorilla/securecookie v1.1.1 h1:miw7JPhV+b/lAHSXz4qd/nN9jRiAFV5FwjeKyCS8BvQ= github.com/gorilla/securecookie v1.1.1/go.mod h1:ra0sb63/xPlUeL+yeDciTfxMRAA+MP+HVt/4epWDjd4= github.com/gorilla/sessions v1.2.1 h1:DHd3rPN5lE3Ts3D8rKkQ8x/0kqfeNmBAaiSi+o7FsgI= github.com/gorilla/sessions v1.2.1/go.mod h1:dk2InVEVJ0sfLlnXv9EAgkf6ecYs/i80K/zI+bUmuGM= +github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU= +github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4= +github.com/klauspost/compress v1.10.7/go.mod h1:aoV0uJVorq1K+umq18yTdKaF57EivdYsUV+/s2qKfXs= +github.com/leodido/go-urn v1.2.0/go.mod h1:+8+nEpDfqqsY+g338gtMEUOtuK+4dEMhiQEgxpxOKII= +github.com/mattn/go-isatty v0.0.12/go.mod 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h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
M
http.go
→
http.go
@@ -79,14 +79,14 @@ }
} func editFileHandler(w http.ResponseWriter, r *http.Request) { - ok, authUser, _ := getAuthUser(r) - if !ok { + user := newGetAuthUser(r) + if !user.LoggedIn { renderDefaultError(w, http.StatusForbidden) return } fileName := filepath.Clean(r.URL.Path[len("/edit/"):]) isText := strings.HasPrefix(mime.TypeByExtension(path.Ext(fileName)), "text") - filePath := path.Join(c.FilesDirectory, authUser, fileName) + filePath := path.Join(c.FilesDirectory, user.Username, fileName) if r.Method == "GET" { err := checkIfValidFile(filePath, nil)@@ -112,10 +112,10 @@ data := struct {
FileName string FileText string PageTitle string - AuthUser string + AuthUser AuthUser Host string IsText bool - }{fileName, string(fileBytes), c.SiteTitle, authUser, c.Host, isText} + }{fileName, string(fileBytes), c.SiteTitle, user, c.Host, isText} err = t.ExecuteTemplate(w, "edit_file.html", data) if err != nil { panic(err)@@ -136,7 +136,7 @@ return
} // create directories if dne os.MkdirAll(path.Dir(filePath), os.ModePerm) - if userHasSpace(authUser, len(fileBytes)) { + if userHasSpace(user.Username, len(fileBytes)) { if isText { // Cant edit binary files here err = ioutil.WriteFile(filePath, fileBytes, 0644) }@@ -155,7 +155,7 @@ renderError(w, err.Error(), http.StatusBadRequest)
return } if newName != fileName { - newPath := path.Join(c.FilesDirectory, authUser, newName) + newPath := path.Join(c.FilesDirectory, user.Username, newName) os.MkdirAll(path.Dir(newPath), os.ModePerm) os.Rename(filePath, newPath) fileName = newName@@ -225,26 +225,6 @@ ImpersonatingUser: impers,
} } -//TODO deprecate -func getAuthUser(r *http.Request) (bool, string, bool) { - session, _ := SessionStore.Get(r, "cookie-session") - user, ok := session.Values["auth_user"].(string) - isAdmin, _ := session.Values["admin"].(bool) - return ok, user, isAdmin -} -func deleteFileHandler(w http.ResponseWriter, r *http.Request) { - user := newGetAuthUser(r) - if !user.LoggedIn { - renderDefaultError(w, http.StatusForbidden) - return - } - filePath := safeGetFilePath(user.Username, r.URL.Path[len("/delete/"):]) - if r.Method == "POST" { - os.Remove(filePath) // TODO handle error - } - http.Redirect(w, r, "/my_site", http.StatusSeeOther) -} - func mySiteHandler(w http.ResponseWriter, r *http.Request) { user := newGetAuthUser(r) if !user.LoggedIn {@@ -321,13 +301,13 @@ }
} func archiveHandler(w http.ResponseWriter, r *http.Request) { - authd, authUser, _ := getAuthUser(r) - if !authd { + authUser := newGetAuthUser(r) + if !authUser.LoggedIn { renderDefaultError(w, http.StatusForbidden) return } if r.Method == "GET" { - userFolder := filepath.Join(c.FilesDirectory, filepath.Clean(authUser)) + userFolder := getUserDirectory(authUser.Username) err := zipit(userFolder, w) if err != nil { panic(err)@@ -458,11 +438,24 @@ }{c.Host, "Registration complete! The server admin will approve your request before you can log in.", "Registration Complete"}
t.ExecuteTemplate(w, "message.html", data) } } +} + +func deleteFileHandler(w http.ResponseWriter, r *http.Request) { + user := newGetAuthUser(r) + if !user.LoggedIn { + renderDefaultError(w, http.StatusForbidden) + return + } + filePath := safeGetFilePath(user.Username, r.URL.Path[len("/delete/"):]) + if r.Method == "POST" { + os.Remove(filePath) // TODO handle error + } + http.Redirect(w, r, "/my_site", http.StatusSeeOther) } func adminHandler(w http.ResponseWriter, r *http.Request) { - _, _, isAdmin := getAuthUser(r) - if !isAdmin { + user := newGetAuthUser(r) + if !user.IsAdmin { renderDefaultError(w, http.StatusForbidden) return }@@ -547,9 +540,9 @@ }
} func deleteAccountHandler(w http.ResponseWriter, r *http.Request) { - _, authUser, _ := getAuthUser(r) + user := newGetAuthUser(r) if r.Method == "POST" { - err := deleteUser(authUser) + err := deleteUser(user.Username) if err != nil { log.Println(err) renderDefaultError(w, http.StatusInternalServerError)@@ -560,13 +553,12 @@ }
} func resetPasswordHandler(w http.ResponseWriter, r *http.Request) { - getAuthUser(r) } func adminUserHandler(w http.ResponseWriter, r *http.Request) { - _, _, isAdmin := getAuthUser(r) + user := newGetAuthUser(r) if r.Method == "POST" { - if !isAdmin { + if !user.IsAdmin { renderDefaultError(w, http.StatusForbidden) return }@@ -612,9 +604,9 @@ serveMux.HandleFunc(hostname+"/my_site/flounder-archive.zip", archiveHandler)
serveMux.HandleFunc(hostname+"/admin", adminHandler) serveMux.HandleFunc(hostname+"/edit/", editFileHandler) serveMux.HandleFunc(hostname+"/upload", uploadFilesHandler) - serveMux.HandleFunc(hostname+"/login", loginHandler) + serveMux.Handle(hostname+"/login", limit(http.HandlerFunc(loginHandler))) + serveMux.Handle(hostname+"/register", limit(http.HandlerFunc(registerHandler))) serveMux.HandleFunc(hostname+"/logout", logoutHandler) - serveMux.HandleFunc(hostname+"/register", registerHandler) serveMux.HandleFunc(hostname+"/delete/", deleteFileHandler) serveMux.HandleFunc(hostname+"/delete-account", deleteAccountHandler) serveMux.HandleFunc(hostname+"/reset-password", resetPasswordHandler)