Initial support for multiple server names (#2829)

This PR is the first step towards virtual hosting by laying the
groundwork for multiple server names being configured.

1 files changed, 15 insertions, 0 deletions

diff --git a/setup/config/config_global.go b/setup/config/config_global.go
index 784893d2..82577282 100644
--- a/setup/config/config_global.go
+++ b/setup/config/config_global.go
@@ -14,6 +14,9 @@ type Global struct {
 	// The name of the server. This is usually the domain name, e.g 'matrix.org', 'localhost'.
 	ServerName gomatrixserverlib.ServerName `yaml:"server_name"`
 
+	// The secondary server names, used for virtual hosting.
+	SecondaryServerNames []gomatrixserverlib.ServerName `yaml:"-"`
+
 	// Path to the private key which will be used to sign requests and events.
 	PrivateKeyPath Path `yaml:"private_key"`
 
@@ -120,6 +123,18 @@ func (c *Global) Verify(configErrs *ConfigErrors, isMonolith bool) {
 	c.Cache.Verify(configErrs, isMonolith)
 }
 
+func (c *Global) IsLocalServerName(serverName gomatrixserverlib.ServerName) bool {
+	if c.ServerName == serverName {
+		return true
+	}
+	for _, secondaryName := range c.SecondaryServerNames {
+		if secondaryName == serverName {
+			return true
+		}
+	}
+	return false
+}
+
 type OldVerifyKeys struct {
 	// Path to the private key.
 	PrivateKeyPath Path `yaml:"private_key"`