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lewis.moe
1use crate::api::ApiError;
2use crate::circuit_breaker::{CircuitBreakerError, with_circuit_breaker};
3use crate::plc::{PlcClient, PlcError, signing_key_to_did_key, validate_plc_operation};
4use crate::state::AppState;
5use axum::{
6 Json,
7 extract::State,
8 http::StatusCode,
9 response::{IntoResponse, Response},
10};
11use k256::ecdsa::SigningKey;
12use serde::Deserialize;
13use serde_json::{Value, json};
14use tracing::{error, info, warn};
15
16#[derive(Debug, Deserialize)]
17pub struct SubmitPlcOperationInput {
18 pub operation: Value,
19}
20
21pub async fn submit_plc_operation(
22 State(state): State<AppState>,
23 headers: axum::http::HeaderMap,
24 Json(input): Json<SubmitPlcOperationInput>,
25) -> Response {
26 let bearer = match crate::auth::extract_bearer_token_from_header(
27 headers.get("Authorization").and_then(|h| h.to_str().ok()),
28 ) {
29 Some(t) => t,
30 None => {
31 return ApiError::AuthenticationRequired.into_response();
32 }
33 };
34 let auth_user =
35 match crate::auth::validate_bearer_token_allow_deactivated(&state.db, &bearer).await {
36 Ok(user) => user,
37 Err(e) => {
38 return ApiError::from(e).into_response();
39 }
40 };
41 if let Err(e) = crate::auth::scope_check::check_identity_scope(
42 auth_user.is_oauth,
43 auth_user.scope.as_deref(),
44 crate::oauth::scopes::IdentityAttr::Wildcard,
45 ) {
46 return e;
47 }
48 let did = &auth_user.did;
49 if did.starts_with("did:web:") {
50 return ApiError::InvalidRequest(
51 "PLC operations are only valid for did:plc identities".into(),
52 )
53 .into_response();
54 }
55 if let Err(e) = validate_plc_operation(&input.operation) {
56 return ApiError::InvalidRequest(format!("Invalid operation: {}", e)).into_response();
57 }
58 let op = &input.operation;
59 let hostname = std::env::var("PDS_HOSTNAME").unwrap_or_else(|_| "localhost".to_string());
60 let public_url = format!("https://{}", hostname);
61 let user = match sqlx::query!("SELECT id, handle FROM users WHERE did = $1", did)
62 .fetch_optional(&state.db)
63 .await
64 {
65 Ok(Some(row)) => row,
66 _ => {
67 return (
68 StatusCode::NOT_FOUND,
69 Json(json!({"error": "AccountNotFound"})),
70 )
71 .into_response();
72 }
73 };
74 let key_row = match sqlx::query!(
75 "SELECT key_bytes, encryption_version FROM user_keys WHERE user_id = $1",
76 user.id
77 )
78 .fetch_optional(&state.db)
79 .await
80 {
81 Ok(Some(row)) => row,
82 _ => {
83 return (
84 StatusCode::INTERNAL_SERVER_ERROR,
85 Json(json!({"error": "InternalError", "message": "User signing key not found"})),
86 )
87 .into_response();
88 }
89 };
90 let key_bytes = match crate::config::decrypt_key(&key_row.key_bytes, key_row.encryption_version)
91 {
92 Ok(k) => k,
93 Err(e) => {
94 error!("Failed to decrypt user key: {}", e);
95 return (
96 StatusCode::INTERNAL_SERVER_ERROR,
97 Json(json!({"error": "InternalError"})),
98 )
99 .into_response();
100 }
101 };
102 let signing_key = match SigningKey::from_slice(&key_bytes) {
103 Ok(k) => k,
104 Err(e) => {
105 error!("Failed to create signing key: {:?}", e);
106 return (
107 StatusCode::INTERNAL_SERVER_ERROR,
108 Json(json!({"error": "InternalError"})),
109 )
110 .into_response();
111 }
112 };
113 let user_did_key = signing_key_to_did_key(&signing_key);
114 let server_rotation_key =
115 std::env::var("PLC_ROTATION_KEY").unwrap_or_else(|_| user_did_key.clone());
116 if let Some(rotation_keys) = op.get("rotationKeys").and_then(|v| v.as_array()) {
117 let has_server_key = rotation_keys
118 .iter()
119 .any(|k| k.as_str() == Some(&server_rotation_key));
120 if !has_server_key {
121 return (
122 StatusCode::BAD_REQUEST,
123 Json(json!({
124 "error": "InvalidRequest",
125 "message": "Rotation keys do not include server's rotation key"
126 })),
127 )
128 .into_response();
129 }
130 }
131 if let Some(services) = op.get("services").and_then(|v| v.as_object())
132 && let Some(pds) = services.get("atproto_pds").and_then(|v| v.as_object())
133 {
134 let service_type = pds.get("type").and_then(|v| v.as_str());
135 let endpoint = pds.get("endpoint").and_then(|v| v.as_str());
136 if service_type != Some("AtprotoPersonalDataServer") {
137 return (
138 StatusCode::BAD_REQUEST,
139 Json(json!({
140 "error": "InvalidRequest",
141 "message": "Incorrect type on atproto_pds service"
142 })),
143 )
144 .into_response();
145 }
146 if endpoint != Some(&public_url) {
147 return (
148 StatusCode::BAD_REQUEST,
149 Json(json!({
150 "error": "InvalidRequest",
151 "message": "Incorrect endpoint on atproto_pds service"
152 })),
153 )
154 .into_response();
155 }
156 }
157 if let Some(verification_methods) = op.get("verificationMethods").and_then(|v| v.as_object())
158 && let Some(atproto_key) = verification_methods.get("atproto").and_then(|v| v.as_str())
159 && atproto_key != user_did_key
160 {
161 return (
162 StatusCode::BAD_REQUEST,
163 Json(json!({
164 "error": "InvalidRequest",
165 "message": "Incorrect signing key in verificationMethods"
166 })),
167 )
168 .into_response();
169 }
170 if let Some(also_known_as) = (!user.handle.is_empty())
171 .then(|| op.get("alsoKnownAs").and_then(|v| v.as_array()))
172 .flatten()
173 {
174 let expected_handle = format!("at://{}", user.handle);
175 let first_aka = also_known_as.first().and_then(|v| v.as_str());
176 if first_aka != Some(&expected_handle) {
177 return (
178 StatusCode::BAD_REQUEST,
179 Json(json!({
180 "error": "InvalidRequest",
181 "message": "Incorrect handle in alsoKnownAs"
182 })),
183 )
184 .into_response();
185 }
186 }
187 let plc_client = PlcClient::with_cache(None, Some(state.cache.clone()));
188 let operation_clone = input.operation.clone();
189 let did_clone = did.clone();
190 let result: Result<(), CircuitBreakerError<PlcError>> =
191 with_circuit_breaker(&state.circuit_breakers.plc_directory, || async {
192 plc_client
193 .send_operation(&did_clone, &operation_clone)
194 .await
195 })
196 .await;
197 match result {
198 Ok(()) => {}
199 Err(CircuitBreakerError::CircuitOpen(e)) => {
200 warn!("PLC directory circuit breaker open: {}", e);
201 return (
202 StatusCode::SERVICE_UNAVAILABLE,
203 Json(json!({
204 "error": "ServiceUnavailable",
205 "message": "PLC directory service temporarily unavailable"
206 })),
207 )
208 .into_response();
209 }
210 Err(CircuitBreakerError::OperationFailed(e)) => {
211 error!("PLC operation failed: {:?}", e);
212 return (
213 StatusCode::BAD_GATEWAY,
214 Json(json!({
215 "error": "UpstreamError",
216 "message": format!("Failed to submit to PLC directory: {}", e)
217 })),
218 )
219 .into_response();
220 }
221 }
222 match sqlx::query!(
223 "INSERT INTO repo_seq (did, event_type, handle) VALUES ($1, 'identity', $2) RETURNING seq",
224 did,
225 user.handle
226 )
227 .fetch_one(&state.db)
228 .await
229 {
230 Ok(row) => {
231 if let Err(e) = sqlx::query(&format!("NOTIFY repo_updates, '{}'", row.seq))
232 .execute(&state.db)
233 .await
234 {
235 warn!("Failed to notify identity event: {:?}", e);
236 }
237 }
238 Err(e) => {
239 warn!("Failed to sequence identity event: {:?}", e);
240 }
241 }
242 let _ = state.cache.delete(&format!("handle:{}", user.handle)).await;
243 if state.did_resolver.refresh_did(did).await.is_none() {
244 warn!(did = %did, "Failed to refresh DID cache after PLC update");
245 }
246 info!(did = %did, "PLC operation submitted successfully");
247 (StatusCode::OK, Json(json!({}))).into_response()
248}