From 7497950a7adc8cde021e36e8abf80ea18fdb5896 Mon Sep 17 00:00:00 2001 From: Christine Dodrill Date: Tue, 19 Nov 2019 17:07:56 +0000 Subject: [PATCH] initial commit --- .gitignore | 2 + auth.go | 131 ++++++++++++++++++++++++++ go.sum | 202 +++++++++++++++++++++++++++++++++++++++++ html.go | 24 +++++ main.go | 50 ++++++++++ models.go | 65 +++++++++++++ static/gruvbox.css | 74 +++++++++++++++ tmpl/base.html | 19 ++++ tmpl/controlindex.html | 9 ++ tmpl/index.html | 11 +++ tmpl/login.html | 23 +++++ tmpl/register.html | 24 +++++ 12 files changed, 634 insertions(+) create mode 100644 auth.go create mode 100644 go.sum create mode 100644 html.go create mode 100644 main.go create mode 100644 models.go create mode 100644 static/gruvbox.css create mode 100644 tmpl/base.html create mode 100644 tmpl/controlindex.html create mode 100644 tmpl/index.html create mode 100644 tmpl/login.html create mode 100644 tmpl/register.html diff --git a/.gitignore b/.gitignore index a8786c5..855eb95 100644 --- a/.gitignore +++ b/.gitignore @@ -78,3 +78,5 @@ Module.symvers Mkfile.old dkms.conf +# databases +*.db diff --git a/auth.go b/auth.go new file mode 100644 index 0000000..392de72 --- /dev/null +++ b/auth.go @@ -0,0 +1,131 @@ +package main + +import ( + "fmt" + "log" + "net/http" + + "golang.org/x/crypto/bcrypt" +) + +func getUserAndToken(tokenBody string) (User, Token, error) { + var t Token + var u User + + err := db.Where("body = ?", tokenBody).First(&t).Error + if err != nil { + return User{}, Token{}, fmt.Errorf("error when fetching token: %w", err) + } + + err = db.Where("id = ?", t.UserID).First(&u).Error + if err != nil { + return User{}, Token{}, fmt.Errorf("error when fetching user: %w", err) + } + + return u, t, nil +} + +func logoutUser(w http.ResponseWriter, r *http.Request) { + cookie, err := r.Cookie("wasmcloud-token") + if err != nil { + log.Printf("error getting cookie wasmcloud-token: %v", err) + http.Redirect(w, r, "/login", http.StatusSeeOther) + return + } + + u, t, err := getUserAndToken(cookie.Value) + if err != nil { + http.Error(w, "unknown authentication token", http.StatusBadRequest) + return + } + + err = db.Delete(&t).Error + if err != nil { + log.Printf("can't delete token %d for %s: %v", t.ID, u.Username, err) + http.Error(w, "internal server error, please contact support", http.StatusInternalServerError) + return + } + + log.Printf("logout for %s", u.Username) + http.Redirect(w, r, "/login", http.StatusSeeOther) +} + +func loginUser(w http.ResponseWriter, r *http.Request) { + r.ParseMultipartForm(1024) + + for _, val := range []string{"username", "password"} { + if r.FormValue(val) == "" { + http.Error(w, "missing form data "+val, http.StatusBadRequest) + return + } + } + + uname := r.FormValue("username") + pw := r.FormValue("password") + + var u User + err := db.Where("username = ?", uname).First(&u).Error + if err != nil { + log.Printf("can't lookup user %s: %v", uname, err) + http.Error(w, "unknown user/password", http.StatusBadRequest) + return + } + + err = bcrypt.CompareHashAndPassword(u.CryptedPassword, []byte(pw)) + if err != nil { + log.Printf("wrong password for %s: %v", uname, err) + http.Error(w, "unknown user/password", http.StatusBadRequest) + return + } + + t, err := makeToken(u) + if err != nil { + log.Printf("can't make token: %v", err) + http.Error(w, "internal server error, contact support", http.StatusInternalServerError) + return + } + + log.Printf("login for %s", u.Username) + http.SetCookie(w, t.ToCookie()) + http.Redirect(w, r, "/control/", http.StatusSeeOther) +} + +func registerUser(w http.ResponseWriter, r *http.Request) { + r.ParseMultipartForm(1024) + + for _, val := range []string{"username", "password", "email"} { + if r.FormValue(val) == "" { + http.Error(w, "missing form data "+val, http.StatusBadRequest) + return + } + } + + cryptPW, err := bcrypt.GenerateFromPassword([]byte(r.FormValue("password")), bcrypt.DefaultCost) + if err != nil { + panic(err) + } + + u := User{ + Username: r.FormValue("username"), + CryptedPassword: cryptPW, + Email: r.FormValue("email"), + } + + err = db.Save(&u).Error + if err != nil { + log.Printf("can't save user: %v", err) + http.Error(w, "can't save new user", http.StatusInternalServerError) + return + } + + tok, err := makeToken(u) + if err != nil { + log.Printf("can't make token: %v", err) + http.Error(w, "internal server error, contact support", http.StatusInternalServerError) + return + } + + log.Printf("created user %s", u.Username) + http.SetCookie(w, tok.ToCookie()) + http.Redirect(w, r, "/control/", http.StatusSeeOther) +} diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..9b3e2dc --- /dev/null +++ b/go.sum @@ -0,0 +1,202 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.37.4 h1:glPeL3BQJsbF6aIIYfZizMwc5LTYz250bDMjttbBGAU= +cloud.google.com/go 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http.ResponseWriter, r *http.Request) { + t, err := template.ParseFiles("tmpl/login.html") + if err != nil { + panic(err) + } + + t.Execute(w, nil) +} diff --git a/main.go b/main.go new file mode 100644 index 0000000..159fec0 --- /dev/null +++ b/main.go @@ -0,0 +1,50 @@ +package main + +import ( + "flag" + "log" + "net/http" + "time" + + "github.com/facebookgo/flagenv" + "github.com/gorilla/mux" + "github.com/jinzhu/gorm" + _ "github.com/mattn/go-sqlite3" +) + +var ( + port = flag.String("port", "3002", "TCP port to listen on") + databaseURL = flag.String("database-url", "./wasmcloud.db", "database URL") + databaseKind = flag.String("database-kind", "sqlite3", "database kind") + defaultTokenLifetime = flag.Duration("default-token-lifetime", 500*24*time.Hour, "default token lifetime") + + db *gorm.DB +) + +func main() { + flagenv.Parse() + flag.Parse() + + gormDB, err := gorm.Open(*databaseKind, *databaseURL) + if err != nil { + log.Fatal(err) + } + + log.Println("migrating") + gormDB.AutoMigrate(User{}, Token{}, Stream{}, Handler{}) + db = gormDB + + rtr := mux.NewRouter() + + // auth + rtr.HandleFunc("/register", showRegisterForm).Methods("GET") + rtr.HandleFunc("/register", registerUser).Methods("POST") + rtr.HandleFunc("/login", showLoginForm).Methods("GET") + rtr.HandleFunc("/login", loginUser).Methods("POST") + rtr.HandleFunc("/logout", logoutUser) + + rtr.PathPrefix("/static/").Handler(http.FileServer(http.Dir("."))) + + log.Printf("listening on http://wasmcloud.kahless.cetacean.club:%s", *port) + http.ListenAndServe(":"+*port, rtr) +} diff --git a/models.go b/models.go new file mode 100644 index 0000000..bd7b8f4 --- /dev/null +++ b/models.go @@ -0,0 +1,65 @@ +package main + +import ( + "fmt" + "net/http" + "time" + + "github.com/google/uuid" + "github.com/jinzhu/gorm" +) + +type User struct { + gorm.Model + Username string `gorm:"unique;not null"` + CryptedPassword []byte `gorm:"not null"` + Email string `gorm:"unique;not null"` + IsAdmin bool `gorm:"default:false"` + CanCreateHandlers bool `gorm:"default:false"` +} + +type Token struct { + gorm.Model + Body string `gorm:"unique;not null"` + UserID uint + User User + ExpiresAt time.Time +} + +type Stream struct { + gorm.Model + Name string + UserID uint + User User +} + +type Handler struct { + gorm.Model + Name string + Path string + UserID uint + User User +} + +func (t Token) ToCookie() *http.Cookie { + return &http.Cookie{ + Name: "wasmcloud-token", + Value: t.Body, + Expires: t.ExpiresAt, + } +} + +func makeToken(u User) (Token, error) { + t := Token{ + Body: uuid.New().String(), + UserID: u.ID, + ExpiresAt: time.Now().Add(*defaultTokenLifetime), + } + + err := db.Save(&t).Error + if err != nil { + return Token{}, fmt.Errorf("error when creating token: %w", err) + } + + return t, nil +} diff --git a/static/gruvbox.css b/static/gruvbox.css new file mode 100644 index 0000000..618eb3b --- /dev/null +++ b/static/gruvbox.css @@ -0,0 +1,74 @@ +main { + font-family: monospace, monospace; + max-width: 38rem; + padding: 2rem; + margin: auto; +} + +@media only screen and (max-device-width: 736px) { + main { + padding: 0rem; + } +} + +::selection { + background: #d3869b; +} + +body { + background: #282828; + color: #ebdbb2; +} + +pre { + background-color: #3c3836; + padding: 1em; + border: 0; +} + +a, a:active, a:visited { + color: #b16286; + background-color: #1d2021; +} + +h1, h2, h3, h4, h5 { + margin-bottom: .1rem; +} + +blockquote { + border-left: 1px solid #bdae93; + margin: 0.5em 10px; + padding: 0.5em 10px; +} + +footer { + align: center; +} + +@media (prefers-color-scheme: light) { + body { + background: #fbf1c7; + color: #3c3836; + } + + pre { + background-color: #ebdbb2; + padding: 1em; + border: 0; + } + + a, a:active, a:visited { + color: #b16286; + background-color: #f9f5d7; + } + + h1, h2, h3, h4, h5 { + margin-bottom: .1rem; + } + + blockquote { + border-left: 1px solid #655c54; + margin: 0.5em 10px; + padding: 0.5em 10px; + } +} diff --git a/tmpl/base.html b/tmpl/base.html new file mode 100644 index 0000000..8ae3732 --- /dev/null +++ b/tmpl/base.html @@ -0,0 +1,19 @@ + + + + {{ template "title" . }} + + + + +
+
+

wasmcloud - Documentation - Support - {{ if .LoggedIn }} Control Panel {{ else }} Login {{ end }}

+
+ {{ template "content" . }} + +
+ + diff --git a/tmpl/controlindex.html b/tmpl/controlindex.html new file mode 100644 index 0000000..d554655 --- /dev/null +++ b/tmpl/controlindex.html @@ -0,0 +1,9 @@ +{{ define "title" }} +wasmcloud Control Panel +{{ end }} + +{{ define "content" }} +

Control Panel

+ +TODO(cadey): all of this +{{ end }} diff --git a/tmpl/index.html b/tmpl/index.html new file mode 100644 index 0000000..6c8b8e8 --- /dev/null +++ b/tmpl/index.html @@ -0,0 +1,11 @@ +{{ define "title" }} +wasmcloud +{{ end }} + +{{ define "content" }} +

wasmcloud

+ +

wasmcloud is a service that lets you run and manage functions as a service written in WebAssembly targeting the CommonWA API. This is powered by olin.

+ +

Please mind the gaps while this is in early alpha and testing. More information will be here soon.

+{{ end }} diff --git a/tmpl/login.html b/tmpl/login.html new file mode 100644 index 0000000..dc59a47 --- /dev/null +++ b/tmpl/login.html @@ -0,0 +1,23 @@ + + + + wasmcloud Login + + + + +
+

wasmcloud Login

+ +
+ Username:
+ Password:
+ +
+ + +
+ + diff --git a/tmpl/register.html b/tmpl/register.html new file mode 100644 index 0000000..14b7755 --- /dev/null +++ b/tmpl/register.html @@ -0,0 +1,24 @@ + + + + wasmcloud Registration + + + + +
+

wasmcloud Registration

+ +
+ Username:
+ Email:
+ Password:
+ +
+ + +
+ +