98 lines
2 KiB
Go
98 lines
2 KiB
Go
package auth
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import (
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"encoding/base64"
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"github.com/rs/zerolog/log"
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"golang.org/x/crypto/bcrypt"
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"dynatron.me/x/blasphem/pkg/storage"
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)
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const (
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HAProviderKey = "auth_provider.homeassistant"
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)
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type User struct {
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Password string `json:"password"`
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Username string `json:"username"`
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}
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type HomeAssistantProvider struct {
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AuthProviderBase `json:"-"`
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Users []User `json:"users"`
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}
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func NewHAProvider(s storage.Store) (*HomeAssistantProvider, error) {
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hap := &HomeAssistantProvider{
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AuthProviderBase: AuthProviderBase{
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Name: "Home Assistant Local",
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Type: HomeAssistant,
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},
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}
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err := s.Get(HAProviderKey, hap)
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if err != nil {
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return hap, err
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}
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return hap, nil
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}
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func (hap *HomeAssistantProvider) hashPass(p string) ([]byte, error) {
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return bcrypt.GenerateFromPassword([]byte(p), bcrypt.DefaultCost)
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}
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func (hap *HomeAssistantProvider) ValidateCreds(rm map[string]interface{}) bool {
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usernameE, hasU := rm["username"]
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passwordE, hasP := rm["password"]
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username, unStr := usernameE.(string)
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password, paStr := passwordE.(string)
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if !hasU || !hasP || !unStr || !paStr || username == "" || password == "" {
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return false
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}
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var found *User
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const dummyHash = "$2b$12$CiuFGszHx9eNHxPuQcwBWez4CwDTOcLTX5CbOpV6gef2nYuXkY7BO"
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for _, v := range hap.Users { // iterate all to thwart timing attacks
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if v.Username == username {
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found = &v
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}
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}
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if found == nil { // one more compare to thwart timing attacks
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bcrypt.CompareHashAndPassword([]byte("foo"), []byte(dummyHash))
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return false
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}
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var hash []byte
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hash, err := base64.StdEncoding.DecodeString(found.Password)
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if err != nil {
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log.Error().Err(err).Msg("b64 encode fail")
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return false
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}
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err = bcrypt.CompareHashAndPassword(hash, []byte(password))
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if err == nil {
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return true
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}
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return false
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}
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func (hap *HomeAssistantProvider) FlowSchema() []FlowSchemaItem {
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return []FlowSchemaItem{
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{
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Type: "string",
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Name: "username",
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Required: true,
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},
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{
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Type: "string",
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Name: "password",
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Required: true,
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},
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}
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}
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