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//! HTTP client for interacting with delegate services
use crate::{ChallengeRequest, ChallengeResponse, Error, Result, TokenResponse, VerificationToken};
use reqwest::Client;
/// Client for interacting with a DelVe delegate service
pub struct DelegateClient {
client: Client,
base_url: String,
}
impl DelegateClient {
/// Create a new delegate client
///
/// # Arguments
///
/// * `endpoint` - Base URL of the delegate service (e.g., "https://verify.example.org")
pub fn new(endpoint: impl Into<String>) -> Self {
Self {
client: Client::new(),
base_url: endpoint.into(),
}
}
/// Submit a challenge to the delegate service
///
/// # Arguments
///
/// * `request` - The challenge request
///
/// # Returns
///
/// The challenge response with request ID and authorization URL
pub async fn submit_challenge(&self, request: &ChallengeRequest) -> Result<ChallengeResponse> {
let url = format!("{}/v1/challenge", self.base_url);
let response = self.client.post(&url).json(request).send().await?;
if !response.status().is_success() {
let status = response.status();
let error_text = response.text().await.unwrap_or_default();
return Err(Error::InvalidResponse(format!(
"HTTP {}: {}",
status, error_text
)));
}
let challenge_response: ChallengeResponse = response.json().await?;
Ok(challenge_response)
}
/// Retrieve a verification token
///
/// # Arguments
///
/// * `request_id` - The request ID from the challenge response
///
/// # Returns
///
/// The token response, which may be pending, authorized, or rejected
pub async fn get_token(&self, request_id: &str) -> Result<TokenResponse> {
let url = format!("{}/v1/token/{}", self.base_url, request_id);
let response = self.client.get(&url).send().await?;
let status = response.status();
if status.is_success() || status.as_u16() == 202 || status.as_u16() == 403 {
let token_response: TokenResponse = response.json().await?;
Ok(token_response)
} else {
let error_text = response.text().await.unwrap_or_default();
Err(Error::InvalidResponse(format!(
"HTTP {}: {}",
status, error_text
)))
}
}
/// Poll for token until authorized or rejected (convenience method)
///
/// # Arguments
///
/// * `request_id` - The request ID from the challenge response
/// * `max_attempts` - Maximum number of polling attempts
/// * `poll_interval` - Duration to wait between polls
///
/// # Returns
///
/// The verification token if authorized
pub async fn poll_for_token(
&self,
request_id: &str,
max_attempts: u32,
poll_interval: std::time::Duration,
) -> Result<VerificationToken> {
for _ in 0..max_attempts {
match self.get_token(request_id).await? {
TokenResponse::Authorized { token, .. } => return Ok(token),
TokenResponse::Rejected { .. } => return Err(Error::AuthorizationRejected),
TokenResponse::Pending { .. } => {
tokio::time::sleep(poll_interval).await;
}
}
}
Err(Error::AuthorizationPending)
}
/// Revoke authorization for a verifier
///
/// # Arguments
///
/// * `verifier_id` - The verifier ID to revoke
pub async fn revoke_authorization(&self, verifier_id: &str) -> Result<()> {
let url = format!("{}/v1/authorization/{}", self.base_url, verifier_id);
let response = self.client.delete(&url).send().await?;
if !response.status().is_success() {
let status = response.status();
let error_text = response.text().await.unwrap_or_default();
return Err(Error::InvalidResponse(format!(
"HTTP {}: {}",
status, error_text
)));
}
Ok(())
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_client_creation() {
let client = DelegateClient::new("https://verify.example.org");
assert_eq!(client.base_url, "https://verify.example.org");
}
// Integration tests would require a running delegate service
// For now, we just test client creation
}