134 lines
3.6 KiB
Rust
134 lines
3.6 KiB
Rust
use codex_client::Request;
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use codex_client::RequestCompression;
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use codex_client::RetryOn;
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use codex_client::RetryPolicy;
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use http::Method;
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use http::header::HeaderMap;
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use std::collections::HashMap;
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use std::time::Duration;
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use url::Url;
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/// Wire-level APIs supported by a `Provider`.
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub enum WireApi {
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Responses,
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Chat,
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Compact,
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}
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/// High-level retry configuration for a provider.
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///
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/// This is converted into a `RetryPolicy` used by `codex-client` to drive
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/// transport-level retries for both unary and streaming calls.
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#[derive(Debug, Clone)]
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pub struct RetryConfig {
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pub max_attempts: u64,
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pub base_delay: Duration,
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pub retry_429: bool,
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pub retry_5xx: bool,
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pub retry_transport: bool,
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}
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impl RetryConfig {
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pub fn to_policy(&self) -> RetryPolicy {
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RetryPolicy {
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max_attempts: self.max_attempts,
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base_delay: self.base_delay,
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retry_on: RetryOn {
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retry_429: self.retry_429,
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retry_5xx: self.retry_5xx,
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retry_transport: self.retry_transport,
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},
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}
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}
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}
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/// HTTP endpoint configuration used to talk to a concrete API deployment.
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///
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/// Encapsulates base URL, default headers, query params, retry policy, and
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/// stream idle timeout, plus helper methods for building requests.
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#[derive(Debug, Clone)]
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pub struct Provider {
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pub name: String,
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pub base_url: String,
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pub query_params: Option<HashMap<String, String>>,
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pub wire: WireApi,
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pub headers: HeaderMap,
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pub retry: RetryConfig,
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pub stream_idle_timeout: Duration,
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}
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impl Provider {
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pub fn url_for_path(&self, path: &str) -> String {
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let base = self.base_url.trim_end_matches('/');
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let path = path.trim_start_matches('/');
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let mut url = if path.is_empty() {
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base.to_string()
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} else {
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format!("{base}/{path}")
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};
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if let Some(params) = &self.query_params
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&& !params.is_empty()
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{
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let qs = params
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.iter()
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.map(|(k, v)| format!("{k}={v}"))
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.collect::<Vec<_>>()
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.join("&");
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url.push('?');
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url.push_str(&qs);
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}
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url
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}
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pub fn build_request(&self, method: Method, path: &str) -> Request {
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Request {
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method,
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url: self.url_for_path(path),
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headers: self.headers.clone(),
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body: None,
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compression: RequestCompression::None,
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timeout: None,
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}
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}
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pub fn is_azure_responses_endpoint(&self) -> bool {
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if self.wire != WireApi::Responses {
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return false;
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}
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if self.name.eq_ignore_ascii_case("azure") {
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return true;
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}
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self.base_url.to_ascii_lowercase().contains("openai.azure.")
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|| matches_azure_responses_base_url(&self.base_url)
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}
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pub fn websocket_url_for_path(&self, path: &str) -> Result<Url, url::ParseError> {
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let mut url = Url::parse(&self.url_for_path(path))?;
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let scheme = match url.scheme() {
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"http" => "ws",
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"https" => "wss",
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"ws" | "wss" => return Ok(url),
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_ => return Ok(url),
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};
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let _ = url.set_scheme(scheme);
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Ok(url)
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}
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}
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fn matches_azure_responses_base_url(base_url: &str) -> bool {
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const AZURE_MARKERS: [&str; 5] = [
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"cognitiveservices.azure.",
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"aoai.azure.",
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"azure-api.",
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"azurefd.",
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"windows.net/openai",
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];
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let base = base_url.to_ascii_lowercase();
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AZURE_MARKERS.iter().any(|marker| base.contains(marker))
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}
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