use serde::{Deserialize, Serialize};
use time::{Duration, OffsetDateTime};
use crate::context::AuthContext;
use crate::cookies::{ChunkedCookieStore, Cookie};
use crate::crypto::symmetric_encode_jwt_with_salt;
use crate::db::{Account, DbAdapter, Session, User};
use crate::error::OpenAuthError;
use crate::session::{CreateSessionInput, DbSessionStore};
use crate::user::{
CreateOAuthAccountInput, CreateUserInput, DbUserStore, UpdateAccountInput, UpdateUserInput,
};
use super::errors::OAuthUserInfoError;
use super::tokens::set_token_util;
const ACCOUNT_COOKIE_SALT: &str = "better-auth-account";
#[derive(Debug, Clone, Default, PartialEq, Eq, Serialize, Deserialize)]
pub struct OAuthUserInfo {
pub id: String,
pub name: String,
pub email: String,
pub image: Option<String>,
pub email_verified: bool,
}
#[derive(Debug, Clone, Default, PartialEq, Eq, Serialize, Deserialize)]
pub struct OAuthAccountInput {
pub provider_id: String,
pub account_id: String,
pub access_token: Option<String>,
pub refresh_token: Option<String>,
pub id_token: Option<String>,
pub access_token_expires_at: Option<OffsetDateTime>,
pub refresh_token_expires_at: Option<OffsetDateTime>,
pub scope: Option<String>,
}
#[derive(Debug, Clone, Default, PartialEq, Eq)]
pub struct HandleOAuthUserInfoInput {
pub user_info: OAuthUserInfo,
pub account: OAuthAccountInput,
pub callback_url: Option<String>,
pub disable_sign_up: bool,
pub override_user_info: bool,
pub is_trusted_provider: bool,
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct OAuthSessionUser {
pub session: Session,
pub user: User,
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct HandleOAuthUserInfoResult {
pub data: Option<OAuthSessionUser>,
pub error: Option<OAuthUserInfoError>,
pub is_register: bool,
pub cookies: Vec<Cookie>,
}
pub async fn handle_oauth_user_info(
context: &AuthContext,
adapter: &dyn DbAdapter,
input: HandleOAuthUserInfoInput,
) -> Result<HandleOAuthUserInfoResult, OpenAuthError> {
let users = DbUserStore::new(adapter);
let normalized_email = input.user_info.email.to_lowercase();
let db_user = users
.find_oauth_user(
&normalized_email,
&input.account.account_id,
&input.account.provider_id,
)
.await?;
let mut user = db_user.as_ref().map(|lookup| lookup.user.clone());
let account_cookie;
let is_register = user.is_none();
if let Some(lookup) = db_user {
let linked_account = lookup.linked_account.or_else(|| {
lookup
.accounts
.iter()
.find(|account| {
account.provider_id == input.account.provider_id
&& account.account_id == input.account.account_id
})
.cloned()
});
if let Some(linked_account) = linked_account {
account_cookie = Some(
update_linked_account(context, &users, &linked_account, &input.account).await?,
);
if input.override_user_info {
user = override_linked_user_info(&users, &lookup.user, &input.user_info).await?;
} else if input.user_info.email_verified
&& !lookup.user.email_verified
&& same_email(&input.user_info.email, &lookup.user.email)
{
user = users
.update_user_email_verified(&lookup.user.id, true)
.await?
.or(user);
}
} else if !can_implicitly_link(context, &input) {
return Ok(result_error(OAuthUserInfoError::AccountNotLinked, false));
} else {
let account = account_input(context, &input.account, &lookup.user.id)?;
let linked_account = users
.link_account(account)
.await
.map_err(|_| OpenAuthError::Adapter("unable to link OAuth account".to_owned()))?;
account_cookie = Some(linked_account);
if input.user_info.email_verified
&& !lookup.user.email_verified
&& same_email(&input.user_info.email, &lookup.user.email)
{
user = users
.update_user_email_verified(&lookup.user.id, true)
.await?
.or(Some(lookup.user));
} else {
user = Some(lookup.user);
}
}
} else {
if input.disable_sign_up {
return Ok(result_error(OAuthUserInfoError::SignupDisabled, false));
}
let mut user_input = CreateUserInput::new(input.user_info.name.clone(), normalized_email)
.email_verified(input.user_info.email_verified);
if let Some(image) = input.user_info.image.clone() {
user_input = user_input.image(image);
}
let created = users
.create_oauth_user(user_input, account_input(context, &input.account, "")?)
.await
.map_err(|_| OpenAuthError::Adapter("unable to create OAuth user".to_owned()))?;
account_cookie = Some(created.account);
user = Some(created.user);
}
let Some(user) = user else {
return Ok(result_error(OAuthUserInfoError::UnableToCreateUser, false));
};
let session = DbSessionStore::new(adapter)
.create_session(CreateSessionInput::new(
&user.id,
OffsetDateTime::now_utc() + Duration::seconds(context.session_config.expires_in as i64),
))
.await
.map_err(|_| OpenAuthError::Adapter("unable to create OAuth session".to_owned()))?;
let cookies = if context.options.account.store_account_cookie {
account_cookie
.as_ref()
.map(|account| set_account_cookie(context, account))
.transpose()?
.unwrap_or_default()
} else {
Vec::new()
};
Ok(HandleOAuthUserInfoResult {
data: Some(OAuthSessionUser { session, user }),
error: None,
is_register,
cookies,
})
}
fn can_implicitly_link(context: &AuthContext, input: &HandleOAuthUserInfoInput) -> bool {
let linking = &context.options.account.account_linking;
if !linking.enabled || linking.disable_implicit_linking {
return false;
}
let trusted = input.is_trusted_provider
|| linking
.trusted_providers
.iter()
.any(|provider| provider == &input.account.provider_id);
trusted || input.user_info.email_verified
}
async fn update_linked_account(
context: &AuthContext,
users: &DbUserStore<'_>,
linked_account: &Account,
account: &OAuthAccountInput,
) -> Result<Account, OpenAuthError> {
if !context.options.account.update_account_on_sign_in {
return Ok(linked_account.clone());
}
let updated = users
.update_account(
&linked_account.id,
UpdateAccountInput {
access_token: Some(set_token_util(account.access_token.as_deref(), context)?),
refresh_token: Some(set_token_util(account.refresh_token.as_deref(), context)?),
id_token: Some(account.id_token.clone()),
access_token_expires_at: Some(account.access_token_expires_at),
refresh_token_expires_at: Some(account.refresh_token_expires_at),
scope: Some(account.scope.clone()),
},
)
.await?;
Ok(updated.unwrap_or_else(|| linked_account.clone()))
}
fn set_account_cookie(
context: &AuthContext,
account: &Account,
) -> Result<Vec<Cookie>, OpenAuthError> {
let max_age = context
.auth_cookies
.account_data
.attributes
.max_age
.unwrap_or(60 * 5);
let data = symmetric_encode_jwt_with_salt(
account,
&context.secret_config,
ACCOUNT_COOKIE_SALT,
max_age,
)?;
let mut attributes = context.auth_cookies.account_data.attributes.clone();
attributes.max_age = Some(max_age);
Ok(ChunkedCookieStore::new(
context.auth_cookies.account_data.name.clone(),
attributes,
"",
)
.chunk(&data))
}
async fn override_linked_user_info(
users: &DbUserStore<'_>,
existing: &User,
provider: &OAuthUserInfo,
) -> Result<Option<User>, OpenAuthError> {
let normalized_email = provider.email.to_lowercase();
let email_verified = if normalized_email == existing.email {
existing.email_verified || provider.email_verified
} else {
provider.email_verified
};
let updated = users
.update_user(
&existing.id,
UpdateUserInput::new()
.name(provider.name.clone())
.image(provider.image.clone()),
)
.await?;
users
.update_user_email(&existing.id, &normalized_email, email_verified)
.await
.map(|user| user.or(updated))
}
fn account_input(
context: &AuthContext,
account: &OAuthAccountInput,
user_id: &str,
) -> Result<CreateOAuthAccountInput, OpenAuthError> {
Ok(CreateOAuthAccountInput {
id: None,
provider_id: account.provider_id.clone(),
account_id: account.account_id.clone(),
user_id: user_id.to_owned(),
access_token: set_token_util(account.access_token.as_deref(), context)?,
refresh_token: set_token_util(account.refresh_token.as_deref(), context)?,
id_token: account.id_token.clone(),
access_token_expires_at: account.access_token_expires_at,
refresh_token_expires_at: account.refresh_token_expires_at,
scope: account.scope.clone(),
})
}
fn same_email(provider_email: &str, user_email: &str) -> bool {
provider_email.eq_ignore_ascii_case(user_email)
}
fn result_error(error: OAuthUserInfoError, is_register: bool) -> HandleOAuthUserInfoResult {
HandleOAuthUserInfoResult {
data: None,
error: Some(error),
is_register,
cookies: Vec::new(),
}
}