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use crate::AppState;
use atproto_client::client::{Auth, CallLimits, xrpc_call_with_limits};
use atproto_identity::model::Document;
use axum::http::{HeaderMap, Method, StatusCode};
use serde_json::Value;
use std::time::Duration;
#[derive(Debug, Clone, PartialEq)]
pub struct RecordNotFound(pub String);
impl std::fmt::Display for RecordNotFound {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "record not found: {}", self.0)
}
}
impl std::error::Error for RecordNotFound {}
pub async fn resolve(state: &AppState, subject: &str) -> anyhow::Result<Document> {
state.resolver.resolve(subject).await
}
pub async fn pds(state: &AppState, did: &str) -> anyhow::Result<String> {
let document = resolve(state, did).await?;
document
.pds_endpoints_validated()
.first()
.map(|endpoint| endpoint.trim_end_matches('/').to_string())
.ok_or_else(|| anyhow::anyhow!("{did} names no usable PDS"))
}
pub async fn get_record(state: &AppState, uri: &str) -> anyhow::Result<(Value, String)> {
find_record(state, uri)
.await?
.ok_or_else(|| RecordNotFound(uri.to_string()).into())
}
pub async fn find_record(state: &AppState, uri: &str) -> anyhow::Result<Option<(Value, String)>> {
let (repo, collection, rkey) = zkwid::lexicon::parse_at_uri(uri)?;
let base = pds(state, &repo).await?;
let url = reqwest::Url::parse_with_params(
&format!("{base}/xrpc/com.atproto.repo.getRecord"),
[
("repo", repo.as_str()),
("collection", collection.as_str()),
("rkey", rkey.as_str()),
],
)?;
let response = xrpc_call_with_limits(
&state.http,
&Auth::None,
Method::GET,
url.as_str(),
None,
&HeaderMap::new(),
CallLimits::new(Duration::from_secs(30), 2 * 1024 * 1024),
)
.await?;
let (error, message) = response.xrpc_error_fields();
if response.status == StatusCode::NOT_FOUND || error == "RecordNotFound" {
return Ok(None);
}
if !response.is_success() {
anyhow::bail!("getRecord {uri}: {} {error} {message}", response.status);
}
let body = response
.body
.ok_or_else(|| anyhow::anyhow!("getRecord {uri}: body is not JSON"))?;
let cid = body
.get("cid")
.and_then(Value::as_str)
.ok_or_else(|| anyhow::anyhow!("getRecord {uri}: no cid"))?
.to_string();
let value = body
.get("value")
.cloned()
.ok_or_else(|| anyhow::anyhow!("getRecord {uri}: no value"))?;
Ok(Some((value, cid)))
}
