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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 => return ApiError::AuthenticationRequired.into_response(),
31 };
32 let auth_user = match crate::auth::validate_bearer_token_allow_deactivated(&state.db, &bearer).await {
33 Ok(user) => user,
34 Err(e) => return ApiError::from(e).into_response(),
35 };
36 let did = &auth_user.did;
37 if let Err(e) = validate_plc_operation(&input.operation) {
38 return ApiError::InvalidRequest(format!("Invalid operation: {}", e)).into_response();
39 }
40 let op = &input.operation;
41 let hostname = std::env::var("PDS_HOSTNAME").unwrap_or_else(|_| "localhost".to_string());
42 let public_url = format!("https://{}", hostname);
43 let user = match sqlx::query!("SELECT id, handle, deactivated_at FROM users WHERE did = $1", did)
44 .fetch_optional(&state.db)
45 .await
46 {
47 Ok(Some(row)) => row,
48 _ => {
49 return (
50 StatusCode::NOT_FOUND,
51 Json(json!({"error": "AccountNotFound"})),
52 )
53 .into_response();
54 }
55 };
56 let is_migration = user.deactivated_at.is_some();
57 let key_row = match sqlx::query!(
58 "SELECT key_bytes, encryption_version FROM user_keys WHERE user_id = $1",
59 user.id
60 )
61 .fetch_optional(&state.db)
62 .await
63 {
64 Ok(Some(row)) => row,
65 _ => {
66 return (
67 StatusCode::INTERNAL_SERVER_ERROR,
68 Json(json!({"error": "InternalError", "message": "User signing key not found"})),
69 )
70 .into_response();
71 }
72 };
73 let key_bytes = match crate::config::decrypt_key(&key_row.key_bytes, key_row.encryption_version)
74 {
75 Ok(k) => k,
76 Err(e) => {
77 error!("Failed to decrypt user key: {}", e);
78 return (
79 StatusCode::INTERNAL_SERVER_ERROR,
80 Json(json!({"error": "InternalError"})),
81 )
82 .into_response();
83 }
84 };
85 let signing_key = match SigningKey::from_slice(&key_bytes) {
86 Ok(k) => k,
87 Err(e) => {
88 error!("Failed to create signing key: {:?}", e);
89 return (
90 StatusCode::INTERNAL_SERVER_ERROR,
91 Json(json!({"error": "InternalError"})),
92 )
93 .into_response();
94 }
95 };
96 let user_did_key = signing_key_to_did_key(&signing_key);
97 if !is_migration {
98 if let Some(rotation_keys) = op.get("rotationKeys").and_then(|v| v.as_array()) {
99 let server_rotation_key =
100 std::env::var("PLC_ROTATION_KEY").unwrap_or_else(|_| user_did_key.clone());
101 let has_server_key = rotation_keys
102 .iter()
103 .any(|k| k.as_str() == Some(&server_rotation_key));
104 if !has_server_key {
105 return (
106 StatusCode::BAD_REQUEST,
107 Json(json!({
108 "error": "InvalidRequest",
109 "message": "Rotation keys do not include server's rotation key"
110 })),
111 )
112 .into_response();
113 }
114 }
115 }
116 if let Some(services) = op.get("services").and_then(|v| v.as_object())
117 && let Some(pds) = services.get("atproto_pds").and_then(|v| v.as_object()) {
118 let service_type = pds.get("type").and_then(|v| v.as_str());
119 let endpoint = pds.get("endpoint").and_then(|v| v.as_str());
120 if service_type != Some("AtprotoPersonalDataServer") {
121 return (
122 StatusCode::BAD_REQUEST,
123 Json(json!({
124 "error": "InvalidRequest",
125 "message": "Incorrect type on atproto_pds service"
126 })),
127 )
128 .into_response();
129 }
130 if endpoint != Some(&public_url) {
131 return (
132 StatusCode::BAD_REQUEST,
133 Json(json!({
134 "error": "InvalidRequest",
135 "message": "Incorrect endpoint on atproto_pds service"
136 })),
137 )
138 .into_response();
139 }
140 }
141 if !is_migration {
142 if let Some(verification_methods) = op.get("verificationMethods").and_then(|v| v.as_object())
143 && let Some(atproto_key) = verification_methods.get("atproto").and_then(|v| v.as_str())
144 && atproto_key != user_did_key {
145 return (
146 StatusCode::BAD_REQUEST,
147 Json(json!({
148 "error": "InvalidRequest",
149 "message": "Incorrect signing key in verificationMethods"
150 })),
151 )
152 .into_response();
153 }
154 if let Some(also_known_as) = op.get("alsoKnownAs").and_then(|v| v.as_array()) {
155 let expected_handle = format!("at://{}", user.handle);
156 let first_aka = also_known_as.first().and_then(|v| v.as_str());
157 if first_aka != Some(&expected_handle) {
158 return (
159 StatusCode::BAD_REQUEST,
160 Json(json!({
161 "error": "InvalidRequest",
162 "message": "Incorrect handle in alsoKnownAs"
163 })),
164 )
165 .into_response();
166 }
167 }
168 }
169 let plc_client = PlcClient::new(None);
170 let operation_clone = input.operation.clone();
171 let did_clone = did.clone();
172 let result: Result<(), CircuitBreakerError<PlcError>> =
173 with_circuit_breaker(&state.circuit_breakers.plc_directory, || async {
174 plc_client
175 .send_operation(&did_clone, &operation_clone)
176 .await
177 })
178 .await;
179 match result {
180 Ok(()) => {}
181 Err(CircuitBreakerError::CircuitOpen(e)) => {
182 warn!("PLC directory circuit breaker open: {}", e);
183 return (
184 StatusCode::SERVICE_UNAVAILABLE,
185 Json(json!({
186 "error": "ServiceUnavailable",
187 "message": "PLC directory service temporarily unavailable"
188 })),
189 )
190 .into_response();
191 }
192 Err(CircuitBreakerError::OperationFailed(e)) => {
193 error!("Failed to submit PLC operation: {:?}", e);
194 return (
195 StatusCode::BAD_GATEWAY,
196 Json(json!({
197 "error": "UpstreamError",
198 "message": format!("Failed to submit to PLC directory: {}", e)
199 })),
200 )
201 .into_response();
202 }
203 }
204 match sqlx::query!(
205 "INSERT INTO repo_seq (did, event_type) VALUES ($1, 'identity') RETURNING seq",
206 did
207 )
208 .fetch_one(&state.db)
209 .await
210 {
211 Ok(row) => {
212 if let Err(e) = sqlx::query(&format!("NOTIFY repo_updates, '{}'", row.seq))
213 .execute(&state.db)
214 .await
215 {
216 warn!("Failed to notify identity event: {:?}", e);
217 }
218 }
219 Err(e) => {
220 warn!("Failed to sequence identity event: {:?}", e);
221 }
222 }
223 info!("Submitted PLC operation for user {}", did);
224 (StatusCode::OK, Json(json!({}))).into_response()
225}