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lean_ctx/dashboard/
mod.rs

1use std::sync::Arc;
2use subtle::ConstantTimeEq;
3use tokio::io::{AsyncReadExt, AsyncWriteExt};
4use tokio::net::TcpListener;
5
6const DEFAULT_PORT: u16 = 3333;
7const DEFAULT_HOST: &str = "127.0.0.1";
8const DASHBOARD_HTML: &str = include_str!("dashboard.html");
9
10const COCKPIT_INDEX_HTML: &str = include_str!("static/index.html");
11const COCKPIT_STYLE_CSS: &str = include_str!("static/style.css");
12const COCKPIT_LIB_API_JS: &str = include_str!("static/lib/api.js");
13const COCKPIT_LIB_FORMAT_JS: &str = include_str!("static/lib/format.js");
14const COCKPIT_LIB_ROUTER_JS: &str = include_str!("static/lib/router.js");
15const COCKPIT_LIB_CHARTS_JS: &str = include_str!("static/lib/charts.js");
16const COCKPIT_LIB_SHARED_JS: &str = include_str!("static/lib/shared.js");
17const COCKPIT_COMPONENT_NAV_JS: &str = include_str!("static/components/cockpit-nav.js");
18const COCKPIT_COMPONENT_CONTEXT_JS: &str = include_str!("static/components/cockpit-context.js");
19const COCKPIT_COMPONENT_OVERVIEW_JS: &str = include_str!("static/components/cockpit-overview.js");
20const COCKPIT_COMPONENT_LIVE_JS: &str = include_str!("static/components/cockpit-live.js");
21const COCKPIT_COMPONENT_KNOWLEDGE_JS: &str = include_str!("static/components/cockpit-knowledge.js");
22const COCKPIT_COMPONENT_AGENTS_JS: &str = include_str!("static/components/cockpit-agents.js");
23const COCKPIT_COMPONENT_MEMORY_JS: &str = include_str!("static/components/cockpit-memory.js");
24const COCKPIT_COMPONENT_SEARCH_JS: &str = include_str!("static/components/cockpit-search.js");
25const COCKPIT_COMPONENT_COMPRESSION_JS: &str =
26    include_str!("static/components/cockpit-compression.js");
27const COCKPIT_COMPONENT_GRAPH_JS: &str = include_str!("static/components/cockpit-graph.js");
28const COCKPIT_COMPONENT_HEALTH_JS: &str = include_str!("static/components/cockpit-health.js");
29const COCKPIT_COMPONENT_REMAINING_JS: &str = include_str!("static/components/cockpit-remaining.js");
30
31pub mod routes;
32
33pub async fn start(port: Option<u16>, host: Option<String>) {
34    let port = port.unwrap_or_else(|| {
35        std::env::var("LEAN_CTX_PORT")
36            .ok()
37            .and_then(|p| p.parse().ok())
38            .unwrap_or(DEFAULT_PORT)
39    });
40
41    let host = host.unwrap_or_else(|| {
42        std::env::var("LEAN_CTX_HOST")
43            .ok()
44            .unwrap_or_else(|| DEFAULT_HOST.to_string())
45    });
46
47    let addr = format!("{host}:{port}");
48    let is_local = host == "127.0.0.1" || host == "localhost" || host == "::1";
49
50    // Avoid accidental multiple dashboard instances (common source of "it hangs").
51    // Only safe to auto-detect for local dashboards without auth.
52    if is_local && dashboard_responding(&host, port) {
53        println!("\n  lean-ctx dashboard already running → http://{host}:{port}");
54        println!("  Tip: use Ctrl+C in the existing terminal to stop it.\n");
55        if let Some(t) = load_saved_token() {
56            open_browser(&format!("http://localhost:{port}/?token={t}"));
57        } else {
58            open_browser(&format!("http://localhost:{port}"));
59        }
60        return;
61    }
62
63    // Always enable auth (even on loopback) to prevent cross-origin reads of /api/*
64    // from a malicious website (CORS is not a reliable boundary for localhost services).
65    let t = generate_token();
66    save_token(&t);
67    let token = Some(Arc::new(t));
68
69    if let Some(t) = token.as_ref() {
70        if is_local {
71            println!("  Auth: enabled (local)");
72            println!("  Browser URL:  http://localhost:{port}/?token={t}");
73        } else {
74            eprintln!(
75                "  \x1b[33m⚠\x1b[0m Binding to {host} — authentication enabled.\n  \
76                 Bearer token: \x1b[1;32m{t}\x1b[0m\n  \
77                 Browser URL:  http://<your-ip>:{port}/?token={t}"
78            );
79        }
80    }
81
82    let listener = match TcpListener::bind(&addr).await {
83        Ok(l) => l,
84        Err(e) => {
85            eprintln!("Failed to bind to {addr}: {e}");
86            std::process::exit(1);
87        }
88    };
89
90    let stats_path = crate::core::data_dir::lean_ctx_data_dir().map_or_else(
91        |_| "~/.lean-ctx/stats.json".to_string(),
92        |d| d.join("stats.json").display().to_string(),
93    );
94
95    if host == "0.0.0.0" {
96        println!("\n  lean-ctx dashboard → http://0.0.0.0:{port} (all interfaces)");
97        println!("  Local access:  http://localhost:{port}");
98    } else {
99        println!("\n  lean-ctx dashboard → http://{host}:{port}");
100    }
101    println!("  Stats file: {stats_path}");
102    println!("  Press Ctrl+C to stop\n");
103
104    if is_local {
105        if let Some(t) = token.as_ref() {
106            open_browser(&format!("http://localhost:{port}/?token={t}"));
107        } else {
108            open_browser(&format!("http://localhost:{port}"));
109        }
110    }
111    if crate::shell::is_container() && is_local {
112        println!("  Tip (Docker): bind 0.0.0.0 + publish port:");
113        println!("    lean-ctx dashboard --host=0.0.0.0 --port={port}");
114        println!("    docker run ... -p {port}:{port} ...");
115        println!();
116    }
117
118    loop {
119        if let Ok((stream, _)) = listener.accept().await {
120            let token_ref = token.clone();
121            tokio::spawn(handle_request(stream, token_ref));
122        }
123    }
124}
125
126fn generate_token() -> String {
127    let mut bytes = [0u8; 32];
128    getrandom::fill(&mut bytes).expect("CSPRNG unavailable — cannot generate secure token");
129    format!("lctx_{}", hex_lower(&bytes))
130}
131
132fn save_token(token: &str) {
133    if let Ok(dir) = crate::core::data_dir::lean_ctx_data_dir() {
134        let _ = std::fs::create_dir_all(&dir);
135        let path = dir.join("dashboard.token");
136        #[cfg(unix)]
137        {
138            use std::io::Write;
139            use std::os::unix::fs::OpenOptionsExt;
140            let Ok(mut f) = std::fs::OpenOptions::new()
141                .write(true)
142                .create(true)
143                .truncate(true)
144                .mode(0o600)
145                .open(&path)
146            else {
147                return;
148            };
149            let _ = f.write_all(token.as_bytes());
150        }
151        #[cfg(not(unix))]
152        {
153            let _ = std::fs::write(&path, token);
154        }
155    }
156}
157
158fn load_saved_token() -> Option<String> {
159    let dir = crate::core::data_dir::lean_ctx_data_dir().ok()?;
160    let path = dir.join("dashboard.token");
161    std::fs::read_to_string(path)
162        .ok()
163        .map(|s| s.trim().to_string())
164}
165
166fn hex_lower(bytes: &[u8]) -> String {
167    const HEX: &[u8; 16] = b"0123456789abcdef";
168    let mut out = String::with_capacity(bytes.len() * 2);
169    for &b in bytes {
170        out.push(HEX[(b >> 4) as usize] as char);
171        out.push(HEX[(b & 0x0f) as usize] as char);
172    }
173    out
174}
175
176fn open_browser(url: &str) {
177    #[cfg(target_os = "macos")]
178    {
179        let _ = std::process::Command::new("open").arg(url).spawn();
180    }
181
182    #[cfg(target_os = "linux")]
183    {
184        let _ = std::process::Command::new("xdg-open")
185            .arg(url)
186            .stderr(std::process::Stdio::null())
187            .spawn();
188    }
189
190    #[cfg(target_os = "windows")]
191    {
192        let _ = std::process::Command::new("cmd")
193            .args(["/C", "start", url])
194            .spawn();
195    }
196}
197
198fn dashboard_responding(host: &str, port: u16) -> bool {
199    use std::io::{Read, Write};
200    use std::net::TcpStream;
201    use std::time::Duration;
202
203    let addr = format!("{host}:{port}");
204    let Ok(mut s) = TcpStream::connect_timeout(
205        &addr
206            .parse()
207            .unwrap_or_else(|_| std::net::SocketAddr::from(([127, 0, 0, 1], port))),
208        Duration::from_millis(150),
209    ) else {
210        return false;
211    };
212    let _ = s.set_read_timeout(Some(Duration::from_millis(150)));
213    let _ = s.set_write_timeout(Some(Duration::from_millis(150)));
214
215    let auth_header = load_saved_token()
216        .map(|t| format!("Authorization: Bearer {t}\r\n"))
217        .unwrap_or_default();
218
219    let req = format!(
220        "GET /api/version HTTP/1.1\r\nHost: localhost\r\n{auth_header}Connection: close\r\n\r\n"
221    );
222    if s.write_all(req.as_bytes()).is_err() {
223        return false;
224    }
225    let mut buf = [0u8; 256];
226    let Ok(n) = s.read(&mut buf) else {
227        return false;
228    };
229    let head = String::from_utf8_lossy(&buf[..n]);
230    head.starts_with("HTTP/1.1 200") || head.starts_with("HTTP/1.0 200")
231}
232
233const MAX_HTTP_MESSAGE: usize = 2 * 1024 * 1024;
234
235fn header_line_value<'a>(header_section: &'a str, name: &str) -> Option<&'a str> {
236    for line in header_section.lines() {
237        let Some((k, v)) = line.split_once(':') else {
238            continue;
239        };
240        if k.trim().eq_ignore_ascii_case(name) {
241            return Some(v.trim());
242        }
243    }
244    None
245}
246
247/// Loopback dashboards often use `localhost` vs `127.0.0.1` interchangeably in `Origin`.
248fn host_loopback_aliases(host: &str) -> Vec<String> {
249    let mut v = vec![host.to_string()];
250    if let Some(port) = host.strip_prefix("127.0.0.1:") {
251        v.push(format!("localhost:{port}"));
252    }
253    if let Some(port) = host.strip_prefix("localhost:") {
254        v.push(format!("127.0.0.1:{port}"));
255    }
256    if let Some(port) = host.strip_prefix("[::1]:") {
257        v.push(format!("127.0.0.1:{port}"));
258        v.push(format!("localhost:{port}"));
259    }
260    v
261}
262
263fn origin_matches_dashboard_host(origin: &str, host: &str) -> bool {
264    let origin = origin.trim_end_matches('/');
265    for h in host_loopback_aliases(host) {
266        if origin.eq_ignore_ascii_case(&format!("http://{h}"))
267            || origin.eq_ignore_ascii_case(&format!("https://{h}"))
268        {
269            return true;
270        }
271    }
272    false
273}
274
275/// Defense-in-depth for browser POSTs: reject cross-site `Origin` on mutating `/api/*` calls.
276/// Non-browser clients (no `Origin`) remain allowed when Bearer auth succeeds.
277fn csrf_origin_ok(header_section: &str, method: &str, path: &str) -> bool {
278    let uc = method.to_ascii_uppercase();
279    if !matches!(uc.as_str(), "POST" | "PUT" | "PATCH" | "DELETE") {
280        return true;
281    }
282    if !path.starts_with("/api/") {
283        return true;
284    }
285    let Some(origin) = header_line_value(header_section, "Origin") else {
286        return true;
287    };
288    if origin.is_empty() || origin.eq_ignore_ascii_case("null") {
289        return true;
290    }
291    let Some(host) = header_line_value(header_section, "Host") else {
292        return false;
293    };
294    origin_matches_dashboard_host(origin, host)
295}
296
297fn find_headers_end(buf: &[u8]) -> Option<usize> {
298    buf.windows(4).position(|w| w == b"\r\n\r\n")
299}
300
301fn parse_content_length_header(header_section: &[u8]) -> Option<usize> {
302    let text = String::from_utf8_lossy(header_section);
303    for line in text.lines() {
304        let Some((k, v)) = line.split_once(':') else {
305            continue;
306        };
307        if k.trim().eq_ignore_ascii_case("content-length") {
308            return v.trim().parse::<usize>().ok();
309        }
310    }
311    Some(0)
312}
313
314async fn read_http_message(stream: &mut tokio::net::TcpStream) -> Option<Vec<u8>> {
315    let mut buf = Vec::new();
316    let mut tmp = [0u8; 8192];
317    loop {
318        if let Some(end) = find_headers_end(&buf) {
319            let cl = parse_content_length_header(&buf[..end])?;
320            let total = end + 4 + cl;
321            if total > MAX_HTTP_MESSAGE {
322                return None;
323            }
324            if buf.len() >= total {
325                buf.truncate(total);
326                return Some(buf);
327            }
328        } else if buf.len() > 65_536 {
329            return None;
330        }
331
332        let n = stream.read(&mut tmp).await.ok()?;
333        if n == 0 {
334            return None;
335        }
336        buf.extend_from_slice(&tmp[..n]);
337        if buf.len() > MAX_HTTP_MESSAGE {
338            return None;
339        }
340    }
341}
342
343async fn handle_request(mut stream: tokio::net::TcpStream, token: Option<Arc<String>>) {
344    let is_loopback = stream.peer_addr().is_ok_and(|a| a.ip().is_loopback());
345
346    let Some(buf) = read_http_message(&mut stream).await else {
347        return;
348    };
349    let Some(header_end) = find_headers_end(&buf) else {
350        return;
351    };
352    let header_text = String::from_utf8_lossy(&buf[..header_end]).to_string();
353    let body_start = header_end + 4;
354    let Some(content_len) = parse_content_length_header(&buf[..header_end]) else {
355        return;
356    };
357    if buf.len() < body_start + content_len {
358        return;
359    }
360    let body_str = std::str::from_utf8(&buf[body_start..body_start + content_len])
361        .unwrap_or("")
362        .to_string();
363
364    let first = header_text.lines().next().unwrap_or("");
365    let mut parts = first.split_whitespace();
366    let method = parts.next().unwrap_or("GET").to_string();
367    let raw_path = parts.next().unwrap_or("/").to_string();
368
369    let (path, query_token) = if let Some(idx) = raw_path.find('?') {
370        let p = &raw_path[..idx];
371        let qs = &raw_path[idx + 1..];
372        let tok = qs
373            .split('&')
374            .find_map(|pair| pair.strip_prefix("token="))
375            .map(std::string::ToString::to_string);
376        (p.to_string(), tok)
377    } else {
378        (raw_path.clone(), None)
379    };
380
381    let query_str = raw_path
382        .find('?')
383        .map_or(String::new(), |i| raw_path[i + 1..].to_string());
384
385    let is_api = path.starts_with("/api/");
386    let requires_auth = is_api || path == "/metrics";
387
388    if let Some(ref expected) = token {
389        let has_header_auth = check_auth(&header_text, expected);
390
391        if requires_auth && !has_header_auth {
392            let body = r#"{"error":"unauthorized"}"#;
393            let response = format!(
394                "HTTP/1.1 401 Unauthorized\r\n\
395                 Content-Type: application/json\r\n\
396                 Content-Length: {}\r\n\
397                 WWW-Authenticate: Bearer\r\n\
398                 Connection: close\r\n\
399                 \r\n\
400                 {body}",
401                body.len()
402            );
403            let _ = stream.write_all(response.as_bytes()).await;
404            return;
405        }
406
407        if !csrf_origin_ok(&header_text, method.as_str(), path.as_str()) {
408            let body = r#"{"error":"forbidden"}"#;
409            let response = format!(
410                "HTTP/1.1 403 Forbidden\r\n\
411                 Content-Type: application/json\r\n\
412                 Content-Length: {}\r\n\
413                 Connection: close\r\n\
414                 \r\n\
415                 {body}",
416                body.len()
417            );
418            let _ = stream.write_all(response.as_bytes()).await;
419            return;
420        }
421    }
422
423    let path = path.as_str();
424    let query_str = query_str.as_str();
425    let method = method.as_str();
426
427    let compute = std::panic::catch_unwind(|| {
428        routes::route_response(
429            path,
430            query_str,
431            query_token.as_ref(),
432            token.as_ref(),
433            is_loopback,
434            method,
435            &body_str,
436        )
437    });
438    let (status, content_type, mut body) = match compute {
439        Ok(v) => v,
440        Err(_) => (
441            "500 Internal Server Error",
442            "application/json",
443            r#"{"error":"dashboard route panicked"}"#.to_string(),
444        ),
445    };
446
447    let cache_header = if content_type.starts_with("application/json") {
448        "Cache-Control: no-cache, no-store, must-revalidate\r\nPragma: no-cache\r\n"
449    } else if content_type.starts_with("application/javascript")
450        || content_type.starts_with("text/css")
451    {
452        "Cache-Control: no-cache, must-revalidate\r\n"
453    } else {
454        ""
455    };
456
457    let nonce = {
458        let mut nb = [0u8; 16];
459        getrandom::fill(&mut nb).expect("CSPRNG unavailable — cannot generate CSP nonce");
460        hex_lower(&nb)
461    };
462    if body.contains("<script>window.__LEAN_CTX_TOKEN__") {
463        body = body.replace(
464            "<script>window.__LEAN_CTX_TOKEN__",
465            &format!("<script nonce=\"{nonce}\">window.__LEAN_CTX_TOKEN__"),
466        );
467    }
468    let security_headers = format!(
469        "X-Content-Type-Options: nosniff\r\n\
470         X-Frame-Options: DENY\r\n\
471         Referrer-Policy: no-referrer\r\n\
472         Content-Security-Policy: default-src 'self'; script-src 'self' 'nonce-{nonce}' https://cdn.jsdelivr.net; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com; img-src 'self' data:; connect-src 'self'\r\n"
473    );
474
475    let response = format!(
476        "HTTP/1.1 {status}\r\n\
477         Content-Type: {content_type}\r\n\
478         Content-Length: {}\r\n\
479         {cache_header}\
480         {security_headers}\
481         Connection: close\r\n\
482         \r\n\
483         {body}",
484        body.len()
485    );
486
487    let _ = stream.write_all(response.as_bytes()).await;
488}
489
490fn check_auth(request: &str, expected_token: &str) -> bool {
491    for line in request.lines() {
492        let lower = line.to_lowercase();
493        if lower.starts_with("authorization:") {
494            let value = line["authorization:".len()..].trim();
495            if let Some(token) = value
496                .strip_prefix("Bearer ")
497                .or_else(|| value.strip_prefix("bearer "))
498            {
499                return constant_time_eq(token.trim().as_bytes(), expected_token.as_bytes());
500            }
501        }
502    }
503    false
504}
505
506fn constant_time_eq(a: &[u8], b: &[u8]) -> bool {
507    if a.len() != b.len() {
508        return false;
509    }
510    bool::from(a.ct_eq(b))
511}
512
513#[cfg(test)]
514mod tests {
515    use super::routes::helpers::normalize_dashboard_demo_path;
516    use super::*;
517    use tempfile::tempdir;
518
519    static ENV_LOCK: std::sync::Mutex<()> = std::sync::Mutex::new(());
520
521    #[test]
522    fn check_auth_with_valid_bearer() {
523        let req = "GET /api/stats HTTP/1.1\r\nAuthorization: Bearer lctx_abc123\r\n\r\n";
524        assert!(check_auth(req, "lctx_abc123"));
525    }
526
527    #[test]
528    fn check_auth_with_invalid_bearer() {
529        let req = "GET /api/stats HTTP/1.1\r\nAuthorization: Bearer wrong_token\r\n\r\n";
530        assert!(!check_auth(req, "lctx_abc123"));
531    }
532
533    #[test]
534    fn check_auth_missing_header() {
535        let req = "GET /api/stats HTTP/1.1\r\nHost: localhost\r\n\r\n";
536        assert!(!check_auth(req, "lctx_abc123"));
537    }
538
539    #[test]
540    fn check_auth_lowercase_bearer() {
541        let req = "GET /api/stats HTTP/1.1\r\nauthorization: bearer lctx_abc123\r\n\r\n";
542        assert!(check_auth(req, "lctx_abc123"));
543    }
544
545    #[test]
546    fn query_token_parsing() {
547        let raw_path = "/index.html?token=lctx_abc123&other=val";
548        let idx = raw_path.find('?').unwrap();
549        let qs = &raw_path[idx + 1..];
550        let tok = qs.split('&').find_map(|pair| pair.strip_prefix("token="));
551        assert_eq!(tok, Some("lctx_abc123"));
552    }
553
554    #[test]
555    fn api_path_detection() {
556        assert!("/api/stats".starts_with("/api/"));
557        assert!("/api/version".starts_with("/api/"));
558        assert!(!"/".starts_with("/api/"));
559        assert!(!"/index.html".starts_with("/api/"));
560        assert!(!"/favicon.ico".starts_with("/api/"));
561    }
562
563    #[test]
564    fn normalize_dashboard_demo_path_strips_rooted_relative_windows_path() {
565        let normalized = normalize_dashboard_demo_path(r"\backend\list_tables.js");
566        assert_eq!(
567            normalized,
568            format!("backend{}list_tables.js", std::path::MAIN_SEPARATOR)
569        );
570    }
571
572    #[test]
573    fn normalize_dashboard_demo_path_preserves_absolute_windows_path() {
574        let input = r"C:\repo\backend\list_tables.js";
575        assert_eq!(normalize_dashboard_demo_path(input), input);
576    }
577
578    #[test]
579    fn normalize_dashboard_demo_path_preserves_unc_path() {
580        let input = r"\\server\share\backend\list_tables.js";
581        assert_eq!(normalize_dashboard_demo_path(input), input);
582    }
583
584    #[test]
585    fn normalize_dashboard_demo_path_strips_dot_slash_prefix() {
586        assert_eq!(
587            normalize_dashboard_demo_path("./src/main.rs"),
588            "src/main.rs"
589        );
590        assert_eq!(
591            normalize_dashboard_demo_path(r".\src\main.rs"),
592            format!("src{}main.rs", std::path::MAIN_SEPARATOR)
593        );
594    }
595
596    #[test]
597    fn api_profile_returns_json() {
598        let (_status, _ct, body) =
599            routes::route_response("/api/profile", "", None, None, false, "GET", "");
600        let v: serde_json::Value = serde_json::from_str(&body).expect("valid JSON");
601        assert!(v.get("active_name").is_some(), "missing active_name");
602        assert!(
603            v.pointer("/profile/profile/name")
604                .and_then(|n| n.as_str())
605                .is_some(),
606            "missing profile.profile.name"
607        );
608        assert!(v.get("available").and_then(|a| a.as_array()).is_some());
609    }
610
611    #[test]
612    fn api_episodes_returns_json() {
613        let (_status, _ct, body) =
614            routes::route_response("/api/episodes", "", None, None, false, "GET", "");
615        let v: serde_json::Value = serde_json::from_str(&body).expect("valid JSON");
616        assert!(v.get("project_hash").is_some());
617        assert!(v.get("stats").is_some());
618        assert!(v.get("recent").and_then(|a| a.as_array()).is_some());
619    }
620
621    #[test]
622    fn api_procedures_returns_json() {
623        let (_status, _ct, body) =
624            routes::route_response("/api/procedures", "", None, None, false, "GET", "");
625        let v: serde_json::Value = serde_json::from_str(&body).expect("valid JSON");
626        assert!(v.get("project_hash").is_some());
627        assert!(v.get("procedures").and_then(|a| a.as_array()).is_some());
628        assert!(v.get("suggestions").and_then(|a| a.as_array()).is_some());
629    }
630
631    #[test]
632    fn api_compression_demo_heals_moved_file_paths() {
633        let _g = ENV_LOCK.lock().expect("env lock");
634        let td = tempdir().expect("tempdir");
635        let root = td.path();
636        std::fs::create_dir_all(root.join("src").join("moved")).expect("mkdir");
637        std::fs::write(
638            root.join("src").join("moved").join("foo.rs"),
639            "pub fn foo() { println!(\"hi\"); }\n",
640        )
641        .expect("write foo.rs");
642
643        let root_s = root.to_string_lossy().to_string();
644        std::env::set_var("LEAN_CTX_DASHBOARD_PROJECT", &root_s);
645
646        let (_status, _ct, body) = routes::route_response(
647            "/api/compression-demo",
648            "path=src/foo.rs",
649            None,
650            None,
651            false,
652            "GET",
653            "",
654        );
655        let v: serde_json::Value = serde_json::from_str(&body).expect("valid JSON");
656        assert!(v.get("error").is_none(), "unexpected error: {body}");
657        assert_eq!(
658            v.get("resolved_from").and_then(|x| x.as_str()),
659            Some("src/moved/foo.rs")
660        );
661
662        std::env::remove_var("LEAN_CTX_DASHBOARD_PROJECT");
663        if let Some(dir) = crate::core::graph_index::ProjectIndex::index_dir(&root_s) {
664            let _ = std::fs::remove_dir_all(dir);
665        }
666    }
667}