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use std::rc::Rc;
use serde::{Deserialize, Serialize};
use thiserror::Error;
use uuid::Uuid;
use wildland_corex::{storage::*, CryptoError, EncryptingKeypair, LssError, LssService};
use wildland_http_client::{
error::WildlandHttpClientError,
evs::{ConfirmTokenReq, EvsClient, GetStorageReq},
};
use super::config::FoundationStorageApiConfig;
#[derive(Debug, Clone, Deserialize, Serialize)]
pub struct StorageCredentials {
pub id: Uuid,
#[serde(rename = "credentialID")]
credential_id: String,
#[serde(rename = "credentialSecret")]
credential_secret: String,
}
impl StorageCredentials {
fn into_storage_template(self, sc_url: String) -> FoundationStorageTemplate {
FoundationStorageTemplate {
id: self.id,
credential_id: self.credential_id,
credential_secret: self.credential_secret,
sc_url,
}
}
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct FoundationStorageTemplate {
pub id: Uuid,
pub credential_id: String,
pub credential_secret: String,
pub sc_url: String,
}
impl StorageTemplateTrait for FoundationStorageTemplate {
fn uuid(&self) -> Uuid {
self.id
}
fn data(&self) -> Vec<u8> {
serde_json::to_vec(self).unwrap()
}
}
impl From<FoundationStorageTemplate> for StorageTemplate {
fn from(fst: FoundationStorageTemplate) -> Self {
Self::new(Rc::new(fst))
}
}
#[repr(C)]
#[derive(Error, Debug, Clone)]
pub enum FsaError {
#[error("Storage already exists for given email address")]
StorageAlreadyExists,
#[error("Evs Error: {0}")]
EvsError(WildlandHttpClientError),
#[error("Crypto error: {0}")]
CryptoError(CryptoError),
#[error("Credentials are expected to be JSON with fields: id, credentialID, credentialSecret")]
InvalidCredentialsFormat(String),
#[error(transparent)]
LssError(#[from] LssError),
}
#[derive(Clone)]
pub struct FreeTierProcessHandle {
email: String,
encrypting_keypair: Rc<EncryptingKeypair>,
}
#[derive(Clone)]
pub struct FoundationStorageApi {
evs_client: EvsClient,
sc_url: String,
lss_service: LssService,
}
impl FoundationStorageApi {
pub fn new(config: FoundationStorageApiConfig, lss_service: LssService) -> Self {
Self {
evs_client: EvsClient::new(&config.evs_url),
sc_url: config.sc_url,
lss_service,
}
}
pub fn request_free_tier_storage(
&self,
email: String,
) -> Result<FreeTierProcessHandle, FsaError> {
let encrypting_keypair = EncryptingKeypair::new();
self.evs_client
.get_storage(GetStorageReq {
email: email.clone(),
pubkey: encrypting_keypair.encode_pub(),
})
.map_err(FsaError::EvsError)
.and_then(|resp| match resp.encrypted_credentials {
Some(_) => Err(FsaError::StorageAlreadyExists),
None => Ok(FreeTierProcessHandle {
email,
encrypting_keypair: Rc::new(encrypting_keypair),
}),
})
}
pub fn verify_email(
&self,
process_handle: &FreeTierProcessHandle,
verification_token: String,
) -> Result<StorageTemplate, FsaError> {
self.evs_client
.confirm_token(ConfirmTokenReq {
email: process_handle.email.clone(),
verification_token,
})
.map_err(FsaError::EvsError)?;
self.evs_client
.get_storage(GetStorageReq {
email: process_handle.email.clone(),
pubkey: process_handle.encrypting_keypair.encode_pub(),
})
.map_err(FsaError::EvsError)
.and_then(|resp| match resp.encrypted_credentials {
Some(payload) => {
let payload = payload.replace('\n', ""); let decoded = base64::decode(payload).unwrap();
let decrypted = decoded;
let storage_credentials: StorageCredentials =
serde_json::from_slice(&decrypted)
.map_err(|e| FsaError::InvalidCredentialsFormat(e.to_string()))?;
let storage_template: StorageTemplate = storage_credentials
.into_storage_template(self.sc_url.clone())
.into();
self.lss_service.save_storage_template(&storage_template)?;
Ok(storage_template)
}
None => Err(FsaError::EvsError(WildlandHttpClientError::HttpError(
"No body with credentials".into(),
))),
})
}
}