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0.1.2-beta Idinagdag: Nob 8, 2026, 2:53 AM · Binuo: Nob 7, 2026, 7:32 PM

common.rs Idinagdag: Hindi naitala ang petsa 17.6 KB · 417 linya

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1//! Shared diagnostics helpers (port of `diagnostics/common.js`): target/option

2//! normalization, statistics, error results and bounded concurrency.

4use crate::core::error::CoreError;

5use once_cell::sync::Lazy;

6use regex::Regex;

7use serde_json::{json, Map, Value};

8use std::future::Future;

9use std::net::IpAddr;

10use std::time::Instant;

12pub const PING_INTERVAL_MIN_MS: u64 = 50;

13pub const PING_DURATION_LIMIT_MS: u64 = 30 * 60 * 1000;

14pub const TOOLS: [&str; 8] = ["dns", "ping", "traceroute", "http", "compression", "tls", "tcp", "websocket"];

16static LABEL: Lazy<Regex> = Lazy::new(|| Regex::new(r"(?i)^[a-z0-9_](?:[a-z0-9_-]{0,61}[a-z0-9_])?$").unwrap());

17static START: Lazy<Instant> = Lazy::new(Instant::now);

19pub fn now_ms() -> f64 {

20 START.elapsed().as_secs_f64() * 1000.0

21}

23pub fn service_name(port: u16) -> Option<&'static str> {

24 Some(match port {

25 21 => "FTP",

26 22 => "SSH",

27 25 => "SMTP",

28 53 => "DNS TCP",

29 80 => "HTTP",

30 110 => "POP3",

31 143 => "IMAP",

32 443 => "HTTPS",

33 445 => "SMB",

34 587 => "SMTP Submission",

35 993 => "IMAPS",

36 995 => "POP3S",

37 3306 => "MySQL",

38 3389 => "RDP",

39 5432 => "PostgreSQL",

40 6379 => "Redis",

41 _ => return None,

42 })

43}

45#[derive(Debug, Clone)]

46pub struct DiagError {

47 pub code: String,

48 pub message: String,

49}

51impl DiagError {

52 pub fn new(code: &str) -> Self {

53 Self { code: code.into(), message: code.into() }

54 }

56 pub fn with_message(code: &str, message: impl Into<String>) -> Self {

57 Self { code: code.into(), message: message.into() }

58 }

60 pub fn from_io(error: std::io::Error) -> Self {

61 let code = match error.kind() {

62 std::io::ErrorKind::ConnectionRefused => "ECONNREFUSED",

63 std::io::ErrorKind::TimedOut => "ETIMEDOUT",

64 std::io::ErrorKind::NotFound => "ENOENT",

65 std::io::ErrorKind::ConnectionReset => "ECONNRESET",

66 std::io::ErrorKind::PermissionDenied => "EACCES",

67 _ => match error.raw_os_error() {

68 Some(65) | Some(113) | Some(10065) => "EHOSTUNREACH",

69 Some(51) | Some(101) | Some(10051) => "ENETUNREACH",

70 _ => "EIO",

71 },

72 };

73 Self { code: code.into(), message: error.to_string() }

74 }

75}

77impl From<DiagError> for CoreError {

78 fn from(error: DiagError) -> Self {

79 CoreError::new(error.code.clone(), error.message.chars().take(400).collect::<String>())

80 }

81}

83pub fn error_result(error: &DiagError) -> Value {

84 json!({

85 "status": if error.code == "CANCELLED" { "cancelled" } else { "error" },

86 "code": if error.code.is_empty() { "DIAGNOSTIC_ERROR" } else { error.code.as_str() },

87 "reason": error.message.chars().take(400).collect::<String>()

88 })

89}

91/// Host normalization: IP literals verbatim, names via IDNA to lower-case ASCII.

92pub fn hostname(raw: &str) -> Result<String, DiagError> {

93 let value = raw.trim_start_matches('[').trim_end_matches(']');

94 if value.parse::<IpAddr>().is_ok() {

95 return Ok(value.to_string());

96 }

97 let trimmed = value.strip_suffix('.').unwrap_or(value);

98 let ascii = idna::domain_to_ascii(trimmed).map_err(|_| DiagError::new("INVALID_HOST"))?.to_lowercase();

99 if ascii.is_empty() || ascii.len() > 253 || !ascii.split('.').all(|label| LABEL.is_match(label)) {

100 return Err(DiagError::new("INVALID_HOST"));

101 }

102 Ok(ascii)

103}

104

105#[derive(Debug, Clone, Default)]

106pub struct Target {

107 pub input: String,

108 pub host: String,

109 pub url: String,

110 pub port: u16,

111 pub kind: String,

112}

113

114impl Target {

115 pub fn to_json(&self) -> Value {

116 json!({ "input": self.input, "host": self.host, "url": self.url, "port": self.port, "type": self.kind })

117 }

118}

119

120fn ip_family(value: &str) -> u8 {

121 match value.parse::<IpAddr>() {

122 Ok(IpAddr::V4(_)) => 4,

123 Ok(IpAddr::V6(_)) => 6,

124 Err(_) => 0,

125 }

126}

127

128pub fn parse_target(raw: &str) -> Result<Target, DiagError> {

129 let input = raw.trim();

130

    if input.is_empty() || input.chars().count() > 2048 || input.chars().any(|c| c as u32 <= 0x20 || c as u32 == 0x7f || c == '\\') {

131 return Err(DiagError::new("INVALID_TARGET"));

132 }

133 let stripped = input.trim_start_matches('[').trim_end_matches(']');

134 let literal = ip_family(stripped);

135 let has_scheme = Regex::new(r"(?i)^[a-z][a-z0-9+.-]*://").unwrap().is_match(input);

136

    let candidate = if literal == 6 { format!("https://[{}]/", hostname(input)?) } else if has_scheme { input.to_string() } else { format!("https://{input}") };

137 let mut url = url::Url::parse(&candidate).map_err(|_| DiagError::new("INVALID_URL"))?;

138

    if !["http", "https", "ws", "wss"].contains(&url.scheme()) || !url.username().is_empty() || url.password().is_some() {

139 return Err(DiagError::new("URL_AUTH_OR_SCHEME_FORBIDDEN"));

140 }

141 let host = hostname(url.host_str().ok_or_else(|| DiagError::new("INVALID_URL"))?)?;

142 url.set_fragment(None);

143 let secure = matches!(url.scheme(), "https" | "wss");

144 let family = ip_family(&host);

145 Ok(Target {

146 input: input.to_string(),

147 port: url.port().unwrap_or(if secure { 443 } else { 80 }),

148 url: url.to_string(),

149

        kind: if family > 0 { format!("ipv{family}") } else if input.contains("://") { "url".into() } else { "hostname".into() },

150 host,

151 })

152}

153

154fn integer(value: Option<&Value>, fallback: Option<i64>, min: i64, max: i64) -> Result<Option<i64>, DiagError> {

155 let invalid = || DiagError::new("INVALID_PARAMETER");

156 let number = match value {

157 None => return Ok(fallback),

158 Some(Value::String(s)) if s.is_empty() => return Ok(fallback),

159 Some(Value::Number(n)) => n.as_f64().ok_or_else(invalid)?,

160 Some(Value::String(s)) => s.trim().parse::<f64>().map_err(|_| invalid())?,

161 Some(Value::Bool(b)) => if *b { 1.0 } else { 0.0 },

162 Some(Value::Null) => 0.0,

163 _ => return Err(invalid()),

164 };

165 if number.fract() != 0.0 || number < min as f64 || number > max as f64 {

166 return Err(invalid());

167 }

168 Ok(Some(number as i64))

169}

170

171#[derive(Debug, Clone, Default)]

172pub struct Options {

173 pub target: Target,

174 pub manual_addresses: Option<Vec<(String, u8)>>,

175 pub tools: Vec<String>,

176 pub mode: String,

177 pub selected_ip: String,

178 pub resolver: String,

179 pub custom_dns: String,

180 pub timeout_ms: u64,

181 pub count: u64,

182 pub interval_ms: u64,

183 pub ping_timeout_ms: Option<u64>,

184 pub packet_size: Option<u64>,

185 pub ttl: Option<u64>,

186 pub dont_fragment: bool,

187 pub repetitions: u64,

188 pub max_hops: u64,

189 pub continuous: bool,

190 pub warm: bool,

191 pub protocols: Vec<String>,

192 pub ports: Vec<u16>,

193 pub compare_schemes: bool,

194 pub json: Value,

195}

196

197fn manual_pair(source: &Value) -> Result<Option<Vec<(String, u8)>>, DiagError> {

198 let list: Option<Vec<String>> = if let Some(Value::Array(items)) = source.get("manualAddresses") {

199

        Some(items.iter().map(|e| e.get("address").and_then(Value::as_str).or(e.as_str()).map(str::to_string).unwrap_or_else(|| e.to_string())).collect())

200 } else if let Some(target) = source.get("target").and_then(Value::as_str) {

201 let trimmed = target.trim();

202 if Regex::new(r"^[^/]*[\s,;][^/]*$").unwrap().is_match(trimmed) {

203 Some(Regex::new(r"[\s,;]+").unwrap().split(trimmed).filter(|s| !s.is_empty()).map(str::to_string).collect())

204 } else {

205 None

206 }

207 } else {

208 None

209 };

210 let Some(list) = list else { return Ok(None) };

211

    let addresses: Vec<String> = list.iter().map(|v| v.trim_start_matches('[').trim_end_matches(']').to_string()).collect();

212

    if addresses.len() != 2 || addresses.iter().any(|a| ip_family(a) == 0) || ip_family(&addresses[0]) == ip_family(&addresses[1]) {

213 return Err(DiagError::new("INVALID_MANUAL_ADDRESSES"));

214 }

215

    let mut pair: Vec<(String, u8)> = addresses.iter().map(|a| Ok((hostname(a)?, ip_family(a)))).collect::<Result<_, DiagError>>()?;

216 pair.sort_by_key(|(_, family)| *family);

217 Ok(Some(pair))

218}

219

220fn string_list(value: Option<&Value>) -> Option<Vec<String>> {

221

    value.and_then(Value::as_array).map(|items| items.iter().map(|v| v.as_str().map(str::to_string).unwrap_or_else(|| v.to_string())).collect())

222}

223

224pub fn normalize_options(source: &Value) -> Result<Options, DiagError> {

225 let manual = manual_pair(source)?;

226 let target_raw = match (&manual, source.get("manualAddresses")) {

227 (Some(pair), None) | (Some(pair), Some(Value::Null)) => pair[0].0.clone(),

228 _ => source.get("target").and_then(Value::as_str).unwrap_or("").to_string(),

229 };

230 let target = parse_target(&target_raw)?;

231 let mode = source.get("mode").and_then(Value::as_str).filter(|m| !m.is_empty()).unwrap_or("auto").to_string();

232 if !["auto", "ipv4", "ipv6", "both"].contains(&mode.as_str()) {

233 return Err(DiagError::new("INVALID_IP_MODE"));

234 }

235 let tools = match source.get("tools") {

237 Some(_) => string_list(source.get("tools")).ok_or_else(|| DiagError::new("INVALID_TOOLS"))?,

238 };

239 if tools.is_empty() || tools.len() > TOOLS.len() || tools.iter().any(|t| !TOOLS.contains(&t.as_str())) {

240 return Err(DiagError::new("INVALID_TOOLS"));

241 }

242 let ports_text = match source.get("ports") {

243 None | Some(Value::Null) => "22,80,443".to_string(),

244 Some(Value::String(s)) if s.is_empty() => "22,80,443".to_string(),

245 Some(Value::String(s)) => s.clone(),

246 Some(other) => other.to_string(),

247 };

248 if ports_text.chars().count() > 512 {

249 return Err(DiagError::new("PORT_LIMIT"));

250 }

251 let mut ports: Vec<u16> = Vec::new();

252 for port in Regex::new(r"[,;\s]+").unwrap().split(&ports_text).filter(|s| !s.is_empty()) {

253 let value = integer(Some(&Value::String(port.into())), Some(443), 1, 65535)?.unwrap_or(443) as u16;

254 if !ports.contains(&value) {

255 ports.push(value);

256 }

257 }

258 if ports.is_empty() || ports.len() > 16 {

259 return Err(DiagError::new("PORT_LIMIT"));

260 }

261

    let resolver = source.get("resolver").and_then(Value::as_str).filter(|r| !r.is_empty()).unwrap_or("system").to_string();

262 if !["system", "custom", "cloudflare", "google", "quad9"].contains(&resolver.as_str()) {

263 return Err(DiagError::new("INVALID_RESOLVER"));

264 }

265 let custom_dns = source.get("customDns").and_then(Value::as_str).unwrap_or("").to_string();

266 if resolver == "custom" && ip_family(&custom_dns) == 0 {

267 return Err(DiagError::new("INVALID_DNS_SERVER"));

268 }

269 let selected_ip = source.get("selectedIp").and_then(Value::as_str).unwrap_or("").to_string();

270 if !selected_ip.is_empty() && ip_family(&selected_ip) == 0 {

271 return Err(DiagError::new("INVALID_IP"));

272 }

273 let protocols = match source.get("protocols") {

274 None | Some(Value::Null) => vec!["1.1".to_string(), "2".into(), "3".into()],

275 Some(_) => string_list(source.get("protocols")).ok_or_else(|| DiagError::new("INVALID_PROTOCOL"))?,

276 };

277

    if protocols.is_empty() || protocols.len() > 3 || protocols.iter().any(|p| !["1.1", "2", "3"].contains(&p.as_str())) {

278 return Err(DiagError::new("INVALID_PROTOCOL"));

279 }

280 let optional = |key: &str, min: i64, max: i64| -> Result<Option<i64>, DiagError> {

281 match source.get(key) {

282 None | Some(Value::Null) => Ok(None),

283 Some(Value::String(s)) if s.is_empty() => Ok(None),

284 value => integer(value, None, min, max),

285 }

286 };

287 let count = integer(source.get("count"), Some(4), 1, 100_000)?.unwrap_or(4) as u64;

288 let repetitions = integer(source.get("repetitions"), Some(1), 1, 20)?.unwrap_or(1) as u64;

289

    let interval_ms = integer(source.get("intervalMs"), Some(1000), PING_INTERVAL_MIN_MS as i64, 60_000)?.unwrap_or(1000) as u64;

290 let continuous = source.get("continuous") == Some(&Value::Bool(true));

291 if !continuous && count * repetitions * interval_ms > PING_DURATION_LIMIT_MS {

292 return Err(DiagError::new("PING_DURATION_LIMIT"));

293 }

294 let mut unique_tools: Vec<String> = Vec::new();

295 for tool in tools {

296 if !unique_tools.contains(&tool) {

297 unique_tools.push(tool);

298 }

299 }

300 let mut unique_protocols: Vec<String> = Vec::new();

301 for protocol in protocols {

302 if !unique_protocols.contains(&protocol) {

303 unique_protocols.push(protocol);

304 }

305 }

306 let mut options = Options {

307 target,

308 manual_addresses: manual,

309 tools: unique_tools,

310 mode,

311 selected_ip,

312 resolver,

313 custom_dns,

314 timeout_ms: integer(source.get("timeoutMs"), Some(5000), 250, 30_000)?.unwrap_or(5000) as u64,

315 count,

316 interval_ms,

317 ping_timeout_ms: optional("pingTimeoutMs", 100, 30_000)?.map(|v| v as u64),

318 packet_size: optional("packetSize", 0, 65_500)?.map(|v| v as u64),

319 ttl: optional("ttl", 1, 255)?.map(|v| v as u64),

320 dont_fragment: source.get("dontFragment") == Some(&Value::Bool(true)),

321 repetitions,

322 max_hops: integer(source.get("maxHops"), Some(20), 1, 40)?.unwrap_or(20) as u64,

323 continuous,

324 warm: source.get("warm") == Some(&Value::Bool(true)),

325 protocols: unique_protocols,

326 ports,

327 compare_schemes: source.get("compareSchemes") == Some(&Value::Bool(true)),

328 json: Value::Null,

329 };

330 options.json = options_json(&options);

331 Ok(options)

332}

333

334pub fn options_json(o: &Options) -> Value {

335 let mut map = Map::new();

336 map.insert("target".into(), o.target.to_json());

337 if let Some(manual) = &o.manual_addresses {

338

        map.insert("manualAddresses".into(), Value::Array(manual.iter().map(|(a, f)| json!({ "address": a, "family": f })).collect()));

339 }

340 let extra = json!({

341

        "tools": o.tools, "mode": o.mode, "selectedIp": o.selected_ip, "resolver": o.resolver, "customDns": o.custom_dns,

342 "timeoutMs": o.timeout_ms, "count": o.count, "intervalMs": o.interval_ms,

343 "pingTimeoutMs": o.ping_timeout_ms, "packetSize": o.packet_size, "ttl": o.ttl, "dontFragment": o.dont_fragment,

344 "repetitions": o.repetitions, "maxHops": o.max_hops, "continuous": o.continuous, "warm": o.warm,

345 "protocols": o.protocols, "ports": o.ports, "compareSchemes": o.compare_schemes

346 });

347 if let Value::Object(extra) = extra {

348 map.extend(extra);

349 }

350 Value::Object(map)

351}

352

353pub fn stats(values: &[Option<f64>]) -> Value {

354 let sequence: Vec<f64> = values.iter().flatten().copied().filter(|v| v.is_finite()).collect();

355 if sequence.is_empty() {

356

        return json!({ "min": null, "average": null, "median": null, "max": null, "p95": null, "stddev": null, "jitter": null });

357 }

358 let mut list = sequence.clone();

359 list.sort_by(|a, b| a.partial_cmp(b).unwrap());

360 let n = list.len();

361 let average = list.iter().sum::<f64>() / n as f64;

362 let median = if n % 2 == 1 { list[(n - 1) / 2] } else { (list[n / 2 - 1] + list[n / 2]) / 2.0 };

363 let p95 = list[((n as f64 * 0.95).ceil() as usize).saturating_sub(1).min(n - 1)];

364 let stddev = (list.iter().map(|v| (v - average).powi(2)).sum::<f64>() / n as f64).sqrt();

365

    let jitter = if sequence.len() < 2 { Value::Null } else { json!(sequence.windows(2).map(|w| (w[1] - w[0]).abs()).sum::<f64>() / (sequence.len() - 1) as f64) };

366

    json!({ "min": list[0], "average": average, "median": median, "max": list[n - 1], "p95": p95, "stddev": stddev, "jitter": jitter })

367}

368

369/// Runs `f` over `items` with at most `limit` in flight, preserving order.

370pub async fn map_limit<T, R, F, Fut>(items: Vec<T>, limit: usize, f: F) -> Result<Vec<R>, DiagError>

371where

372 F: Fn(T) -> Fut,

373 Fut: Future<Output = Result<R, DiagError>>,

374{

375 use futures::stream::{self, StreamExt};

376

    let results: Vec<Result<R, DiagError>> = stream::iter(items.into_iter().map(f)).buffered(limit.max(1)).collect().await;

377 results.into_iter().collect()

378}

379

380#[cfg(test)]

381mod tests {

382 use super::*;

383

384 #[test]

385 fn targets() {

386 let t = parse_target("example.com").unwrap();

387

        assert_eq!((t.host.as_str(), t.port, t.kind.as_str(), t.url.as_str()), ("example.com", 443, "hostname", "https://example.com/"));

388 let t = parse_target("http://Bücher.example:8080/a?b#c").unwrap();

389 assert_eq!(t.host, "xn--bcher-kva.example");

390 assert_eq!(t.port, 8080);

391 assert!(!t.url.contains('#'));

392 assert_eq!(parse_target("2001:db8::1").unwrap().kind, "ipv6");

393 assert_eq!(parse_target("ftp://x").unwrap_err().code, "URL_AUTH_OR_SCHEME_FORBIDDEN");

394 assert_eq!(parse_target("https://u:p@x.example").unwrap_err().code, "URL_AUTH_OR_SCHEME_FORBIDDEN");

395 assert_eq!(parse_target("a b").unwrap_err().code, "INVALID_TARGET");

396 }

397

398 #[test]

399 fn options() {

400 let o = normalize_options(&json!({"target": "example.com"})).unwrap();

401 assert_eq!(o.tools.len(), 7);

402 assert_eq!(o.ports, vec![22, 80, 443]);

403

        assert_eq!(normalize_options(&json!({"target": "x.example", "count": 100000, "intervalMs": 1000})).unwrap_err().code, "PING_DURATION_LIMIT");

404

        assert!(normalize_options(&json!({"target": "x.example", "count": 100000, "intervalMs": 1000, "continuous": true})).is_ok());

405 let pair = normalize_options(&json!({"target": "2001:db8::1, 192.0.2.1"})).unwrap();

406 assert_eq!(pair.manual_addresses.unwrap()[0].1, 4);

407

        assert_eq!(normalize_options(&json!({"target": "x.example", "ports": "1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17"})).unwrap_err().code, "PORT_LIMIT");

408 }

409

410 #[test]

411 fn statistics() {

412 let s = stats(&[Some(1.0), Some(3.0), None, Some(2.0)]);

413 assert_eq!(s["median"], 2.0);

414 assert_eq!(s["jitter"], 1.5);

415 assert_eq!(stats(&[None])["min"], Value::Null);

416 }

417}

418

SHA-256

298bad1cf116f7ea1452a8db8afe11db88b7783f5e97d95e4c7b6e4024ba30f1

CH-J Proprietary Software License 1.14 · Ibinibigay ang source sa ilalim ng CH-J Proprietary Software License 1.14. Hindi binabago ng pagiging available nito ang mga tuntunin ng lisensya at hindi ito nagbibigay ng karagdagang karapatan.

SHA-256 ng archive

ac8fe790f4ba60fc098f8c985fc2656cfcc6cdc21fb34b30e308a2b54e62258f