func (dbc *DbDriver) CanLogin(username string, password string) bool {
log.Printf("INFO: Authenticate user %s", username)
if acl.Username(username) == acl.Anonymous {
return true
}
var passwd string
err := dbc.db.QueryRow("select token from t_users where name = ?", username).Scan(&passwd)
switch {
case err == sql.ErrNoRows:
log.Printf("INFO: unknown user %s", username)
return false
case err != nil:
log.Printf("ERROR: %v", err)
return false
default:
if passwd == password {
log.Printf("INFO: %s has correct passwod", username)
return true
} else {
log.Printf("INFO: %s has wrong passwod", username)
return false
}
}
}
func (c *context) authAccess(rw web.ResponseWriter, req *web.Request, next web.NextMiddlewareFunc) {
username, password, ok := req.BasicAuth()
if ok {
if c.authReq.Account != "" && c.authReq.Account != username {
http.Error(rw, "account is not same as login user", http.StatusForbidden)
return
}
ok, err := runningContext.Acl.CanLogin(acl.Username(username), acl.Password(password))
if !ok {
http.Error(rw, "", http.StatusForbidden)
return
}
if err != nil {
http.Error(rw, err.Error(), http.StatusInternalServerError)
return
}
// check actions
for _, v := range c.authReq.Actions {
p := accessMap[v]
ok, err := runningContext.Acl.CanAccess(acl.Username(username), c.namespace, c.repo, p)
if err != nil {
http.Error(rw, err.Error(), http.StatusInternalServerError)
return
}
if !ok {
http.Error(rw, "", http.StatusForbidden)
return
}
}
next(rw, req)
return
}
http.Error(rw, "", http.StatusUnauthorized)
}
func (c *context) authAccess(rw web.ResponseWriter, req *web.Request, next web.NextMiddlewareFunc) {
log.Printf("INFO: authAccess %s/%s, %v", c.namespace, c.repo, c.authReq.Actions)
username, password, ok := req.BasicAuth()
if c.authReq.Account != "" && c.authReq.Account != username {
http.Error(rw, "account is not same as login user", http.StatusForbidden)
return
}
var _username acl.Username
if ok {
_username = acl.Username(username)
} else {
_username = acl.Anonymous
}
ok, err := runningContext.Acl.CanLogin(_username, acl.Password(password))
if err != nil {
http.Error(rw, err.Error(), http.StatusInternalServerError)
return
}
if !ok {
if _username == acl.Anonymous {
http.Error(rw, "", http.StatusUnauthorized)
} else {
http.Error(rw, "", http.StatusForbidden)
}
return
}
// check actions
for _, v := range c.permsWant {
p := accessMap[v]
ok, err := runningContext.Acl.CanAccess(_username, c.namespace, c.repo, p)
if err != nil {
http.Error(rw, err.Error(), http.StatusInternalServerError)
return
}
if ok {
c.authReq.Actions = append(c.authReq.Actions, v)
}
}
sort.Strings(c.authReq.Actions)
next(rw, req)
}
func (c *context) authAccess(rw web.ResponseWriter, req *web.Request, next web.NextMiddlewareFunc) {
// Authorization: Token signature=123,repository="library/test",access=write
a, ok := req.Header["Authorization"]
if ok {
m := make(map[string]string)
s := strings.TrimLeft(a[0], "Token ")
for _, p := range strings.Split(s, ",") {
kv := strings.Split(p, "=")
k := kv[0]
v := kv[1]
m[k] = v
}
nr := strings.SplitN(strings.Trim(m["repository"], `"`), "/", 2)
m["namespace"] = nr[0]
m["repo"] = nr[1]
if c.checkSignature(nr[0], nr[1], m["signature"], m["access"]) {
next(rw, req)
return
}
}
// Authorization: Basic
username, password, ok := req.BasicAuth()
var _username acl.Username
if ok {
_username = acl.Username(username)
} else {
_username = acl.Anonymous
}
// TODO should move to a separate func
// happens when login
if c.namespace == "" || c.repo == "" {
// Anonymous cant login
if _username == acl.Anonymous {
http.Error(rw, "", http.StatusUnauthorized)
}
return
}
ok, err := runningContext.Acl.CanLogin(_username, acl.Password(password))
if err != nil {
http.Error(rw, err.Error(), http.StatusInternalServerError)
return
}
if !ok {
if _username == acl.Anonymous {
http.Error(rw, "", http.StatusUnauthorized)
} else {
http.Error(rw, "", http.StatusForbidden)
}
return
}
// TODO remove this scope
{
a, ok := accessMap[req.Method]
if !ok {
http.Error(rw, "", http.StatusMethodNotAllowed)
return
}
ok, err = runningContext.Acl.CanAccess(_username, c.namespace, c.repo, a.Permission)
if err != nil {
http.Error(rw, err.Error(), http.StatusInternalServerError)
return
}
if !ok {
http.Error(rw, "", http.StatusForbidden)
return
}
}
next(rw, req)
}
func (c *context) authAccess(rw web.ResponseWriter, req *web.Request, next web.NextMiddlewareFunc) {
username, password, ok := req.BasicAuth()
if ok {
a, ok := accessMap[req.Method]
if !ok {
http.Error(rw, "", http.StatusMethodNotAllowed)
return
}
ok, err := runningContext.Acl.CanLogin(acl.Username(username), acl.Password(password))
if err != nil {
http.Error(rw, err.Error(), http.StatusInternalServerError)
return
}
if !ok {
http.Error(rw, "", http.StatusForbidden)
return
}
ok, err = runningContext.Acl.CanAccess(acl.Username(username), c.namespace, c.repo, a.Permission)
if err != nil {
http.Error(rw, err.Error(), http.StatusInternalServerError)
return
}
if !ok {
http.Error(rw, "", http.StatusForbidden)
return
}
next(rw, req)
return
}
// Authorization: Token signature=123,repository="library/test",access=write
a, ok := req.Header["Authorization"]
if ok {
m := make(map[string]string)
s := strings.TrimLeft(a[0], "Token ")
for _, p := range strings.Split(s, ",") {
kv := strings.Split(p, "=")
k := kv[0]
v := kv[1]
m[k] = v
}
nr := strings.SplitN(strings.Trim(m["repository"], `"`), "/", 2)
m["namespace"] = nr[0]
m["repo"] = nr[1]
if c.checkSignature(nr[0], nr[1], m["signature"], m["access"]) {
next(rw, req)
return
}
}
http.Error(rw, "", http.StatusUnauthorized)
}