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remove SCRAM-SHA-256 from advertised SASL mechanisms

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Advertising SCRAM-SHA-256 breaks irccloud, which doesn't fall back to PLAIN
if it sees SCRAM advertised but SCRAM then fails (as is the case for any
account password hashed on Ergo 2.7 or lower).

Leave a config option for irctest to enable it in the controller.
This commit is contained in:
Shivaram Lingamneni 2021-08-25 15:57:41 -04:00
parent 9c77f89bc2
commit 12947644e2
1 changed files with 7 additions and 1 deletions
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8
irc/config.go
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@ -303,6 +303,7 @@ func (t *ThrottleConfig) UnmarshalYAML(unmarshal func(interface{}) error) (err e
type AccountConfig struct {
Registration AccountRegistrationConfig
AuthenticationEnabled bool `yaml:"authentication-enabled"`
AdvertiseSCRAM bool `yaml:"advertise-scram"` // undocumented, see #1782
RequireSasl struct {
Enabled bool
Exempted []string
@ -1379,7 +1380,12 @@ func LoadConfig(filename string) (config *Config, err error) {
config.Accounts.VHosts.validRegexp = defaultValidVhostRegex
}
config.Server.capValues[caps.SASL] = "PLAIN,EXTERNAL,SCRAM-SHA-256"
saslCapValue := "PLAIN,EXTERNAL,SCRAM-SHA-256"
// TODO(#1782) clean this up:
if !config.Accounts.AdvertiseSCRAM {
saslCapValue = "PLAIN,EXTERNAL"
}
config.Server.capValues[caps.SASL] = saslCapValue
if !config.Accounts.AuthenticationEnabled {
config.Server.supportedCaps.Disable(caps.SASL)
}