Add basic config validation

config/bridge.go

@@ -17,6 +17,7 @@
 package config
 
 import (
+	"errors"
 	"fmt"
 	"strings"
 	"text/template"
@@ -144,6 +145,24 @@ func (bc BridgeConfig) GetManagementRoomTexts() bridgeconfig.ManagementRoomTexts
 	return bc.ManagementRoomText
 }
 
+func boolToInt(val bool) int {
+	if val {
+		return 1
+	}
+	return 0
+}
+
+func (bc BridgeConfig) Validate() error {
+	_, hasWildcard := bc.Permissions["*"]
+	_, hasExampleDomain := bc.Permissions["example.com"]
+	_, hasExampleUser := bc.Permissions["@admin:example.com"]
+	exampleLen := boolToInt(hasWildcard) + boolToInt(hasExampleUser) + boolToInt(hasExampleDomain)
+	if len(bc.Permissions) <= exampleLen {
+		return errors.New("bridge.permissions not configured")
+	}
+	return nil
+}
+
 type umBridgeConfig BridgeConfig
 
 func (bc *BridgeConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {

go.mod

@@ -15,7 +15,7 @@ require (
 	golang.org/x/net v0.0.0-20220513224357-95641704303c
 	google.golang.org/protobuf v1.28.0
 	maunium.net/go/maulogger/v2 v2.3.2
-	maunium.net/go/mautrix v0.11.1-0.20220621174128-b64dc2427d45
+	maunium.net/go/mautrix v0.11.1-0.20220621185022-13661cab583c
 )
 
 require (

go.sum

@@ -107,5 +107,5 @@ maunium.net/go/mauflag v1.0.0 h1:YiaRc0tEI3toYtJMRIfjP+jklH45uDHtT80nUamyD4M=
 maunium.net/go/mauflag v1.0.0/go.mod h1:nLivPOpTpHnpzEh8jEdSL9UqO9+/KBJFmNRlwKfkPeA=
 maunium.net/go/maulogger/v2 v2.3.2 h1:1XmIYmMd3PoQfp9J+PaHhpt80zpfmMqaShzUTC7FwY0=
 maunium.net/go/maulogger/v2 v2.3.2/go.mod h1:TYWy7wKwz/tIXTpsx8G3mZseIRiC5DoMxSZazOHy68A=
-maunium.net/go/mautrix v0.11.1-0.20220621174128-b64dc2427d45 h1:3ld9X4COzaeGrfAAUYD5f4is0siPGzodTFtX/+o8Q50=
-maunium.net/go/mautrix v0.11.1-0.20220621174128-b64dc2427d45/go.mod h1:CiKpMhAx5QZFHK03jpWb0iKI3sGU8x6+LfsOjDrcO8I=
+maunium.net/go/mautrix v0.11.1-0.20220621185022-13661cab583c h1:zG+3JH4mKZCnLyjjvSmlnEfO/UD/BymbT6zq9Pgc2Z0=
+maunium.net/go/mautrix v0.11.1-0.20220621185022-13661cab583c/go.mod h1:CiKpMhAx5QZFHK03jpWb0iKI3sGU8x6+LfsOjDrcO8I=