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|
use email_address::EmailAddress;
use log::debug;
use rand::distributions::{Alphanumeric, DistString};
use time::Duration;
use time::OffsetDateTime;
use uuid::Uuid;
use crate::util::{build_oauth_auth_url, get_oauth_access_token};
use crate::OauthRedirectAuthUrl;
use crate::Validation;
use crate::ValidationType;
use crate::INTERNAL_ERR_MSG;
use crate::{
client, util, EmailValidation, Identity, OauthProviderName, Secd, SecdError, Session,
ValidationRequestId, ValidationSecretCode, EMAIL_VALIDATION_DURATION, SESSION_DURATION,
SESSION_SIZE_BYTES, VALIDATION_CODE_SIZE,
};
impl Secd {
/// create_validation_request_oauth
///
/// Generate a request to validate with the specified oauth provider.[
// TODO: How to handle different oauth "flows"? e.g. web app vs desktop vs mobile...
pub async fn create_validation_request_oauth(
&self,
provider: &OauthProviderName,
scope: Option<String>,
) -> Result<OauthRedirectAuthUrl, SecdError> {
if scope.is_some() {
return Err(SecdError::NotImplemented(
"Only default scopes are currently supported.".into(),
));
}
let p = self
.store
.read_oauth_provider(provider, None)
.await
.map_err(|_| SecdError::InternalError(INTERNAL_ERR_MSG.to_string()))?;
let req_id = self
.store
.write_oauth_validation(&crate::OauthValidation {
id: Some(Uuid::new_v4()),
identity_id: None,
oauth_provider: p.clone(),
access_token: None,
raw_response: None,
created_at: OffsetDateTime::now_utc(),
validated_at: None,
revoked_at: None,
deleted_at: None,
})
.await
.map_err(|e| util::to_secd_err(e, SecdError::OauthValidationRequestError))?;
build_oauth_auth_url(&p, req_id)
}
/// create_validation_request_email
///
/// Generate a request to validate the provided email.
pub async fn create_validation_request_email(
&self,
email: Option<&str>,
) -> Result<ValidationRequestId, SecdError> {
let now = OffsetDateTime::now_utc();
let email = match email {
Some(ea) => {
if EmailAddress::is_valid(ea) {
ea
} else {
return Err(SecdError::InvalidEmailAddress);
}
}
None => return Err(SecdError::InvalidEmailAddress),
};
let mut ev = EmailValidation {
id: None,
identity_id: None,
email_address: email.to_string(),
code: Some(
Alphanumeric
.sample_string(&mut rand::thread_rng(), VALIDATION_CODE_SIZE)
.to_lowercase(),
),
is_oauth_derived: false,
created_at: now,
expired_at: now
.checked_add(Duration::new(EMAIL_VALIDATION_DURATION, 0))
.ok_or(SecdError::EmailValidationExpiryOverflow)?,
validated_at: None,
revoked_at: None,
deleted_at: None,
};
let (req_id, mail_type) = match self
.store
.find_identity(None, Some(email))
.await
.map_err(|e| util::log_err(e.into(), SecdError::Todo))?
{
Some(identity) => {
let req_id = {
ev.identity_id = Some(identity.id);
self.store
.write_email_validation(&ev)
.await
.map_err(|e| util::log_err(e.into(), SecdError::Todo))?
};
(req_id, client::EmailType::Login)
}
None => {
self.store
.write_email(email)
.await
.map_err(|e| util::log_err(e.into(), SecdError::Todo))?;
let req_id = {
self.store
.write_email_validation(&ev)
.await
.map_err(|e| util::log_err(e.into(), SecdError::Todo))?
};
(req_id, client::EmailType::Signup)
}
};
self.email_messenger
.send_email(email, &req_id.to_string(), &ev.code.unwrap(), mail_type)
.await?;
Ok(req_id)
}
/// exchange_secret_for_session
///
/// Exchanges a secret, which consists of a validation_request_id and secret_code
/// for a session which allows authentication on behalf of the associated identity.
///
/// Session secrets should be used to return authorization for the associated identity.
pub async fn exchange_code_for_session(
&self,
validation_request_id: ValidationRequestId,
code: ValidationSecretCode,
) -> Result<Session, SecdError> {
let mut v: Box<dyn Validation> = match self
.store
.find_validation_type(&validation_request_id)
.await
.map_err(|e| util::to_secd_err(e, SecdError::Todo))?
{
ValidationType::Email => Box::new(
self.store
.find_email_validation(Some(&validation_request_id), Some(&code))
.await
.map_err(|e| {
util::log_err(e.into(), SecdError::EmailValidationExpiryOverflow)
})?,
),
ValidationType::Oauth => Box::new({
let mut t = self
.store
.read_oauth_validation(&validation_request_id)
.await
.map_err(|e| util::to_secd_err(e, SecdError::Todo))?;
let access_token = get_oauth_access_token(&t, &code)
.await
.map_err(|_| SecdError::Todo)?;
t.access_token = Some(access_token);
t
}),
};
if v.expired() || v.is_validated() {
return Err(SecdError::InvalidCode);
};
let mut identity = Identity {
id: Uuid::new_v4(),
data: None,
created_at: OffsetDateTime::now_utc(),
deleted_at: None,
};
match v
.find_associated_identities(self.store.clone())
.await
.map_err(|e| util::to_secd_err(e, SecdError::IdentityIdShouldExistInvariant))?
{
Some(i) => identity.id = i.id,
_ => self.store.write_identity(&identity).await.map_err(|_| {
SecdError::InternalError("failed to write identity during session exchange".into())
})?,
};
v.validate(&identity, self.store.clone())
.await
.map_err(|e| {
util::to_secd_err(
e,
SecdError::InternalError(
"failed to update validation during session exchange".into(),
),
)
})?;
// TODO: clear previous sessions if they fit the criteria
let now = OffsetDateTime::now_utc();
let s = Session {
identity_id: identity.id,
secret: Some(Alphanumeric.sample_string(&mut rand::thread_rng(), SESSION_SIZE_BYTES)),
created_at: now,
expired_at: now
.checked_add(Duration::new(SESSION_DURATION, 0))
.ok_or(SecdError::SessionExpiryOverflow)?,
revoked_at: None,
};
self.store
.write_session(&s)
.await
.map_err(|e| util::log_err(e.into(), SecdError::Todo))?;
Ok(s)
}
}
|
