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feat: Add support for custom username overrides #895

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c42c083
[WIP] feat: Add support for custom username overrides
mathieu-lemay May 24, 2026
420ccfa
Merge remote-tracking branch 'upstream/main' into username-overrides
mathieu-lemay May 25, 2026
160c8be
Use existing UserAttributes
mathieu-lemay May 25, 2026
b05f3a2
Add support for groups
mathieu-lemay May 25, 2026
3009cc5
Make email safe for env var parsing
mathieu-lemay May 25, 2026
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31 changes: 28 additions & 3 deletions internal/controller/oauth_controller.go
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Original file line number Diff line number Diff line change
Expand Up @@ -215,9 +215,14 @@ func (controller *OAuthController) oauthCallbackHandler(c *gin.Context) {
return
}

userAttribs := controller.getUserAttributes(user.Email)

var name string

if strings.TrimSpace(user.Name) != "" {
if userAttribs.Name != "" {
controller.log.App.Debug().Msg("Using name from Auth user attributes")
name = userAttribs.Name
} else if strings.TrimSpace(user.Name) != "" {
controller.log.App.Debug().Msg("Using name from OAuth provider")
name = user.Name
} else {
Expand All @@ -232,20 +237,33 @@ func (controller *OAuthController) oauthCallbackHandler(c *gin.Context) {

var username string

if strings.TrimSpace(user.PreferredUsername) != "" {
if userAttribs.PreferredUsername != "" {
controller.log.App.Debug().Msg("Using preferred username from Auth user attributes")
username = userAttribs.PreferredUsername
} else if strings.TrimSpace(user.PreferredUsername) != "" {
controller.log.App.Debug().Msg("Using preferred username from OAuth provider")
username = user.PreferredUsername
} else {
controller.log.App.Debug().Msg("No preferred username from OAuth provider, generating from email")
username = strings.Replace(user.Email, "@", "_", 1)
}

var groups string

if userAttribs.Groups != nil {
groups = strings.Join(userAttribs.Groups, ",")
controller.log.App.Debug().Msgf("Using groups from Auth user attributes: %s", groups)
} else {
controller.log.App.Debug().Msg("Using groups from OAuth provider")
groups = utils.CoalesceToString(user.Groups)
}

sessionCookie := repository.Session{
Username: username,
Name: name,
Email: user.Email,
Provider: svc.ID(),
OAuthGroups: utils.CoalesceToString(user.Groups),
OAuthGroups: groups,
OAuthName: svc.Name(),
OAuthSub: user.Sub,
}
Expand Down Expand Up @@ -307,3 +325,10 @@ func (controller *OAuthController) getCookieDomain() string {
}
return controller.runtime.CookieDomain
}

func (controller *OAuthController) getUserAttributes(email string) model.UserAttributes {
email = strings.ReplaceAll(email, "@", "-")
email = strings.ReplaceAll(email, ".", "-")
attribs := controller.config.Auth.UserAttributes[email]
return attribs
}
32 changes: 17 additions & 15 deletions internal/model/config.go
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Original file line number Diff line number Diff line change
Expand Up @@ -127,21 +127,23 @@ type AuthConfig struct {
}

type UserAttributes struct {
Name string `description:"Full name of the user." yaml:"name"`
GivenName string `description:"Given (first) name of the user." yaml:"givenName"`
FamilyName string `description:"Family (last) name of the user." yaml:"familyName"`
MiddleName string `description:"Middle name of the user." yaml:"middleName"`
Nickname string `description:"Nickname of the user." yaml:"nickname"`
Profile string `description:"URL of the user's profile page." yaml:"profile"`
Picture string `description:"URL of the user's profile picture." yaml:"picture"`
Website string `description:"URL of the user's website." yaml:"website"`
Email string `description:"Email address of the user." yaml:"email"`
Gender string `description:"Gender of the user." yaml:"gender"`
Birthdate string `description:"Birthdate of the user (YYYY-MM-DD)." yaml:"birthdate"`
Zoneinfo string `description:"Time zone of the user (e.g. Europe/Athens)." yaml:"zoneinfo"`
Locale string `description:"Locale of the user (e.g. en-US)." yaml:"locale"`
PhoneNumber string `description:"Phone number of the user." yaml:"phoneNumber"`
Address AddressClaim `description:"Address of the user." yaml:"address"`
Name string `description:"Full name of the user." yaml:"name"`
GivenName string `description:"Given (first) name of the user." yaml:"givenName"`
FamilyName string `description:"Family (last) name of the user." yaml:"familyName"`
MiddleName string `description:"Middle name of the user." yaml:"middleName"`
Nickname string `description:"Nickname of the user." yaml:"nickname"`
PreferredUsername string `description:"Preferred username of the user." yaml:"preferredUsername"`
Groups []string `description:"List of groups the user belongs to." yaml:"groups"`
Profile string `description:"URL of the user's profile page." yaml:"profile"`
Picture string `description:"URL of the user's profile picture." yaml:"picture"`
Website string `description:"URL of the user's website." yaml:"website"`
Email string `description:"Email address of the user." yaml:"email"`
Gender string `description:"Gender of the user." yaml:"gender"`
Birthdate string `description:"Birthdate of the user (YYYY-MM-DD)." yaml:"birthdate"`
Zoneinfo string `description:"Time zone of the user (e.g. Europe/Athens)." yaml:"zoneinfo"`
Locale string `description:"Locale of the user (e.g. en-US)." yaml:"locale"`
PhoneNumber string `description:"Phone number of the user." yaml:"phoneNumber"`
Address AddressClaim `description:"Address of the user." yaml:"address"`
}

type AddressClaim struct {
Expand Down