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0.1.2-beta شامل کیا گیا: 8 نومبر، 2026، 2:53 AM · بلڈ کیا گیا: 7 نومبر، 2026، 7:32 PM

spec.rs شامل کیا گیا: تاریخ درج نہیں 29.4 KB · 643 لائنیں

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1//! What a synchronization should do, checked before anything starts, and the rsync options that follow from it.

2//! Nothing here runs a process: the module's input becomes either an error or a fixed list of arguments.

4use crate::core::error::{CoreError, CoreResult};

5use once_cell::sync::Lazy;

6use regex::Regex;

7use serde_json::Value;

9pub const VERSIONS_DIR: &str = ".chj-versions";

11fn invalid(message: impl Into<String>) -> CoreError {

12 CoreError::new("RSYNC_SPEC_INVALID", message)

13}

15#[derive(Clone, Debug, PartialEq)]

16pub enum Mode {

17 Copy,

18 Mirror,

19 Versioned,

20 Snapshot,

21 Compare,

22}

24impl Mode {

25 pub fn name(&self) -> &'static str {

26 match self {

27 Mode::Copy => "copy",

28 Mode::Mirror => "mirror",

29 Mode::Versioned => "versioned",

30 Mode::Snapshot => "snapshot",

31 Mode::Compare => "compare",

32 }

33 }

34}

36#[derive(Clone, Debug, PartialEq)]

37pub enum Place {

38 Local,

39 Remote { session_id: String },

40}

42#[derive(Clone, Debug)]

43pub struct Endpoint {

44 pub place: Place,

45 pub path: String,

46 pub privileged: bool,

47}

49/// How two different servers reach each other.

50#[derive(Clone, Debug, PartialEq)]

51pub enum Transport {

52 /// The client carries the data between two sessions. Neither server needs a login to the other.

53 Relay,

54 /// The source logs in to the target by itself.

55 Direct { host: String, port: u16, username: String, method: String, key_path: String, accept_new_host_key: bool },

56}

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

59pub struct Options {

60 pub permissions: bool,

61 pub times: bool,

62 pub owner: bool,

63 pub group: bool,

64 pub acls: bool,

65 pub xattrs: bool,

66 pub devices: bool,

67 pub symlinks: String,

68 pub hardlinks: bool,

69 pub compress: bool,

70 pub checksum: bool,

71 pub size_only: bool,

72 pub resume: bool,

73 pub inplace: bool,

74 pub one_file_system: bool,

75 pub numeric_ids: bool,

76 pub update_only: bool,

77 pub existing_only: bool,

78 pub ignore_existing: bool,

79 pub delete_excluded: bool,

80 pub bandwidth_kib: u64,

81 pub timeout_seconds: u64,

82 pub max_size: String,

83 pub min_size: String,

84 pub excludes: Vec<String>,

85 pub includes: Vec<String>,

86 pub extra: Vec<String>,

87 pub keep_days: u64,

88 pub keep_count: u64,

89}

91#[derive(Clone, Debug)]

92pub struct Spec {

93 pub source: Endpoint,

94 pub target: Endpoint,

95 pub mode: Mode,

96 pub contents_only: bool,

97 pub options: Options,

98 pub transport: Transport,

99}

100

101/// What the rsync that will run can do. openrsync on macOS knows far less than rsync 3.

102#[derive(Clone, Debug, Default, PartialEq)]

103pub struct Capabilities {

104 pub real_rsync: bool,

105 pub major: u32,

106 pub minor: u32,

107 pub acls: bool,

108 pub xattrs: bool,

109}

110

111impl Capabilities {

112 /// `rsync version 3.2.7 protocol version 31`, `openrsync: protocol version 29`.

113 pub fn parse(version_line: &str, acls: bool, xattrs: bool) -> Self {

114 static VERSION: Lazy<Regex> = Lazy::new(|| Regex::new(r"rsync\s+version\s+v?(\d+)\.(\d+)").unwrap());

115 match VERSION.captures(version_line) {

116

            Some(found) => Capabilities { real_rsync: true, major: found[1].parse().unwrap_or(0), minor: found[2].parse().unwrap_or(0), acls, xattrs },

117 None => Capabilities::default(),

118 }

119 }

120

121 pub fn overall_progress(&self) -> bool {

122 self.real_rsync && (self.major, self.minor) >= (3, 1)

123 }

124}

125

126/// Places where deleting according to another directory destroys a system or a whole home.

127

const PROTECTED: &[&str] = &["/", "/bin", "/boot", "/dev", "/etc", "/home", "/lib", "/lib64", "/opt", "/proc", "/root", "/run", "/sbin", "/srv", "/sys", "/tmp", "/usr", "/var", "/var/lib", "/var/log", "/var/www", "/Users", "/Library", "/System", "/Applications"];

128

129pub fn normalize(path: &str) -> String {

130 let trimmed = path.trim_end_matches('/');

131 if trimmed.is_empty() { "/".into() } else { trimmed.to_string() }

132}

133

134pub fn is_protected(path: &str) -> bool {

135 let path = normalize(path);

136 PROTECTED.contains(&path.as_str()) || Regex::new(r"^/(home|Users)/[^/]+$").unwrap().is_match(&path)

137}

138

139fn check_path(path: &str, what: &str) -> CoreResult<String> {

140 if !path.starts_with('/') {

141 return Err(invalid(format!("The {what} must be an absolute path.")));

142 }

143 if path.len() > 4096 || path.chars().any(|c| c.is_control()) {

144 return Err(invalid(format!("The {what} contains characters that cannot be used.")));

145 }

146 // rsync expands these on the sending side, so the transfer would not be limited to the path shown.

147 if path.chars().any(|c| matches!(c, '*' | '?' | '[')) {

148 return Err(invalid(format!("The {what} must not contain wildcards. Use the filters.")));

149 }

150 if path.split('/').any(|part| part == ".." || part == ".") || path.contains("//") {

151 return Err(invalid(format!("The {what} must not contain . or .. parts or repeated slashes.")));

152 }

153 Ok(path.to_string())

154}

155

156/// The session name of a target only the source server logs in to.

157pub const DIRECT_TARGET: &str = "direct-target";

158

159fn endpoint(value: &Value, what: &str) -> CoreResult<Endpoint> {

160 let place = match value["kind"].as_str() {

161 Some("local") => Place::Local,

162 Some("ssh") => {

163 let session_id = value["sessionId"].as_str().unwrap_or("");

164 if session_id.is_empty() {

165 return Err(invalid(format!("Choose the server of the {what}.")));

166 }

167 Place::Remote { session_id: session_id.to_string() }

168 }

169 _ => return Err(invalid(format!("Choose the {what}."))),

170 };

171 let path = check_path(value["path"].as_str().unwrap_or(""), what)?;

172 Ok(Endpoint { privileged: value["privileged"] == true && place != Place::Local, place, path })

173}

174

175fn number(value: &Value, name: &str, maximum: u64) -> CoreResult<u64> {

176 match &value[name] {

177 Value::Null => Ok(0),

178 Value::Number(n) if n.as_u64().is_some_and(|n| n <= maximum) => Ok(n.as_u64().unwrap()),

179 _ => Err(invalid(format!("{name} must be a whole number up to {maximum}."))),

180 }

181}

182

183fn size(value: &Value, name: &str) -> CoreResult<String> {

184 let text = value[name].as_str().unwrap_or("").trim();

185 if text.is_empty() || Regex::new(r"^\d{1,15}[KkMmGg]?$").unwrap().is_match(text) {

186 Ok(text.to_string())

187 } else {

188 Err(invalid(format!("{name} must be a size such as 100M.")))

189 }

190}

191

192fn patterns(value: &Value, name: &str) -> CoreResult<Vec<String>> {

193

    let list: Vec<String> = value[name].as_array().into_iter().flatten().filter_map(Value::as_str).map(str::trim).filter(|text| !text.is_empty()).map(str::to_string).collect();

194 if list.len() > 200 || list.iter().any(|text| text.len() > 1024 || text.chars().any(|c| c.is_control())) {

195 return Err(invalid(format!("{name}: at most 200 patterns on single lines.")));

196 }

197 Ok(list)

198}

199

200/// Options that only change how files are compared or stored. Everything that names a program or a

201/// file of the server (`-e`, `--rsync-path`, `--log-file`, `--files-from`…) stays outside the advanced field.

202static EXTRA_ALLOWED: Lazy<Regex> = Lazy::new(|| {

203

    Regex::new(r"^(--(append|append-verify|sparse|preallocate|fuzzy|delay-updates|prune-empty-dirs|omit-dir-times|omit-link-times|no-implied-dirs|safe-links|copy-unsafe-links|keep-dirlinks|modify-window=-?\d+|block-size=\d+|compress-level=\d|skip-compress=[A-Za-z0-9/.-]+|chmod=[A-Za-z0-9,=+-]+|chown=[A-Za-z0-9_.:-]+|usermap=[A-Za-z0-9_.:*,-]+|groupmap=[A-Za-z0-9_.:*,-]+|ignore-times|no-whole-file|whole-file|cvs-exclude|fake-super|super|no-perms|no-times|no-owner|no-group)|-[zSxHuc]+)$").unwrap()

204});

205

206pub fn check_extra(option: &str) -> CoreResult<String> {

207 if EXTRA_ALLOWED.is_match(option) {

208 Ok(option.to_string())

209 } else {

210 Err(invalid(format!("The option {option} is not allowed in the advanced field.")))

211 }

212}

213

214pub fn parse_options(value: &Value) -> CoreResult<Options> {

215 let on = |name: &str, default: bool| value.get(name).and_then(Value::as_bool).unwrap_or(default);

216 let symlinks = value["symlinks"].as_str().unwrap_or("preserve");

217 if !["preserve", "follow", "skip"].contains(&symlinks) {

218 return Err(invalid("Unknown way of handling symbolic links."));

219 }

220 let options = Options {

221 permissions: on("permissions", true),

222 times: on("times", true),

223 owner: on("owner", false),

224 group: on("group", false),

225 acls: on("acls", false),

226 xattrs: on("xattrs", false),

227 devices: on("devices", false),

228 symlinks: symlinks.to_string(),

229 hardlinks: on("hardlinks", false),

230 compress: on("compress", false),

231 checksum: on("checksum", false),

232 size_only: on("sizeOnly", false),

233 resume: on("resume", true),

234 inplace: on("inplace", false),

235 one_file_system: on("oneFileSystem", false),

236 numeric_ids: on("numericIds", false),

237 update_only: on("updateOnly", false),

238 existing_only: on("existingOnly", false),

239 ignore_existing: on("ignoreExisting", false),

240 delete_excluded: on("deleteExcluded", false),

241 bandwidth_kib: number(value, "bandwidthKiB", 100_000_000)?,

242 timeout_seconds: number(value, "timeoutSeconds", 86_400)?,

243 max_size: size(value, "maxSize")?,

244 min_size: size(value, "minSize")?,

245 excludes: patterns(value, "excludes")?,

246 includes: patterns(value, "includes")?,

247

        extra: value["extra"].as_array().into_iter().flatten().filter_map(Value::as_str).map(check_extra).collect::<CoreResult<_>>()?,

248 keep_days: number(value, "keepDays", 36_500)?,

249 keep_count: number(value, "keepCount", 100_000)?,

250 };

251 if options.checksum && options.size_only {

252 return Err(invalid("Choose either checksum or size comparison."));

253 }

254 if options.update_only && options.ignore_existing {

255 return Err(invalid("Update-only and ignore-existing exclude each other."));

256 }

257 if options.resume && options.inplace {

258 return Err(invalid("Resuming keeps partial files aside and cannot be combined with writing in place."));

259 }

260 Ok(options)

261}

262

263static SHELL_SAFE: Lazy<Regex> = Lazy::new(|| Regex::new(r"^[A-Za-z0-9._/+-]+$").unwrap());

264

265fn transport(value: &Value) -> CoreResult<Transport> {

266 match value["kind"].as_str() {

267 None | Some("relay") => Ok(Transport::Relay),

268 Some("direct") => {

269 static HOST: Lazy<Regex> = Lazy::new(|| Regex::new(r"^[A-Za-z0-9][A-Za-z0-9.:-]{0,252}$").unwrap());

270 static USER: Lazy<Regex> = Lazy::new(|| Regex::new(r"^[A-Za-z0-9_][A-Za-z0-9_.-]{0,63}$").unwrap());

271 let host = value["host"].as_str().unwrap_or("").trim().to_string();

272 let username = value["username"].as_str().unwrap_or("").trim().to_string();

273 if !HOST.is_match(&host) || !USER.is_match(&username) {

274 return Err(invalid("Enter the host and user the source server logs in to."));

275 }

276 let method = value["method"].as_str().unwrap_or("").to_string();

277 if !["password", "key", "agent"].contains(&method.as_str()) {

278 return Err(invalid("Choose a password or a key for the login between the servers."));

279 }

280

            let key_path = if method == "key" { value["keyPath"].as_str().unwrap_or("").trim().to_string() } else { String::new() };

281 if method == "key" {

282 // It ends up in the command line of ssh on the server.

283 if !SHELL_SAFE.is_match(&key_path) {

284 return Err(invalid("The key path may contain only letters, digits and . _ - + / characters."));

285 }

286 check_path(&key_path, "key path")?;

287 }

288 let port = value["port"].as_u64().unwrap_or(22);

289 if !(1..=65535).contains(&port) {

290 return Err(invalid("The SSH port is not valid."));

291 }

292

            Ok(Transport::Direct { host, port: port as u16, username, method, key_path, accept_new_host_key: value["acceptNewHostKey"] == true })

293 }

294 _ => Err(invalid("Unknown connection between the servers.")),

295 }

296}

297

298pub fn parse(value: &Value) -> CoreResult<Spec> {

299 let mode = match value["mode"].as_str() {

300 Some("copy") | None => Mode::Copy,

301 Some("mirror") => Mode::Mirror,

302 Some("versioned") => Mode::Versioned,

303 Some("snapshot") => Mode::Snapshot,

304 Some("compare") => Mode::Compare,

305 Some(_) => return Err(invalid("Unknown synchronization mode.")),

306 };

307 let source = endpoint(&value["source"], "source")?;

308 let mut target_value = value["target"].clone();

309 if value["transport"]["kind"] == "direct" {

310 target_value["kind"] = serde_json::json!("ssh");

311 target_value["sessionId"] = serde_json::json!(DIRECT_TARGET);

312 }

313 let target = endpoint(&target_value, "target")?;

314 let spec = Spec {

315 source,

316 target,

317 mode,

318 contents_only: value["contentsOnly"].as_bool().unwrap_or(true),

319 options: parse_options(&value["options"])?,

320 transport: transport(&value["transport"])?,

321 };

322 if spec.source.place == spec.target.place {

323 check_overlap(&spec)?;

324 }

325

    if matches!(spec.transport, Transport::Direct { .. }) && (spec.source.place == Place::Local || spec.target.place == Place::Local) {

326 return Err(invalid("A direct login between servers needs two servers."));

327 }

328 if matches!(spec.transport, Transport::Direct { .. }) {

329 // ssh hands the path to the login shell of the other server, unless a new rsync quotes it.

330 if !SHELL_SAFE.is_match(&spec.target.path) {

331

            return Err(invalid("With a direct login, the target path may contain only letters, digits and . _ - + / characters."));

332 }

333 // Finishing a snapshot and removing old versions happen on the target, and no session reaches it.

334 if spec.mode == Mode::Snapshot {

335 return Err(invalid("Snapshots need a session on the target. Use the transfer through this application."));

336 }

337 if spec.options.keep_days > 0 || spec.options.keep_count > 0 {

338

            return Err(invalid("Removing old versions needs a session on the target. Use the transfer through this application."));

339 }

340 }

341 Ok(spec)

342}

343

344/// Two paths that lie inside each other on one machine would feed a transfer into itself.

345pub fn check_overlap(spec: &Spec) -> CoreResult<()> {

346 let (from, to) = (normalize(&spec.source.path), normalize(&spec.target.path));

347 let inside = |outer: &str, inner: &str| outer == "/" || inner == outer || inner.starts_with(&format!("{outer}/"));

348 // Restoring puts an older version of a backup back into it.

349 static VERSION: Lazy<Regex> = Lazy::new(|| Regex::new(r"^(?:/\.chj-versions)?/\d{8}T\d{6}Z$").unwrap());

350

    let restoring = spec.mode == Mode::Copy && from.strip_prefix(to.as_str()).is_some_and(|rest| VERSION.is_match(rest));

351 if !restoring && (inside(&from, &to) || inside(&to, &from)) {

352 return Err(invalid("The source and the target must not lie inside each other."));

353 }

354 Ok(())

355}

356

357/// Does this mode remove files from the target?

358pub fn deletes(mode: &Mode) -> bool {

359 matches!(mode, Mode::Mirror | Mode::Compare)

360}

361

362/// Where the snapshot or the old versions live.

363pub fn snapshot_dir(spec: &Spec, stamp: &str) -> String {

364 format!("{}/{stamp}/", normalize(&spec.target.path))

365}

366

367pub fn source_argument(spec: &Spec) -> String {

368 let path = normalize(&spec.source.path);

369 if spec.contents_only && path != "/" { format!("{path}/") } else if path == "/" { "/".into() } else { path }

370}

371

372pub fn target_argument(spec: &Spec, stamp: &str) -> String {

373 if spec.mode == Mode::Snapshot { snapshot_dir(spec, stamp) } else { format!("{}/", normalize(&spec.target.path)) }

374}

375

376/// The options of a run. `allowed_deletes` is what the preview showed and the user accepted: rsync stops beyond it.

377

pub fn flags(spec: &Spec, capabilities: &Capabilities, dry_run: bool, stamp: &str, allowed_deletes: Option<u64>) -> CoreResult<Vec<String>> {

378 let o = &spec.options;

379 let mut args: Vec<String> = vec!["--recursive".into(), "--out-format=%i\t%l\t%n".into(), "--stats".into()];

380 let mut push = |condition: bool, flag: &str| {

381 if condition {

382 args.push(flag.to_string());

383 }

384 };

385 push(dry_run, "--dry-run");

386 push(o.permissions, "--perms");

387 push(o.times, "--times");

388 push(o.owner, "--owner");

389 push(o.group, "--group");

390 push(o.devices, "--devices");

391 push(o.devices, "--specials");

392 push(o.hardlinks, "--hard-links");

393 push(o.compress, "--compress");

394 push(o.checksum, "--checksum");

395 push(o.size_only, "--size-only");

396 push(o.inplace, "--inplace");

397 push(o.one_file_system, "--one-file-system");

398 push(o.numeric_ids, "--numeric-ids");

399 push(o.update_only, "--update");

400 push(o.existing_only, "--existing");

401 push(o.ignore_existing, "--ignore-existing");

402 match o.symlinks.as_str() {

403 "follow" => args.push("--copy-links".into()),

404 "skip" => {}

405 _ => args.push("--links".into()),

406 }

407 if o.acls {

408 if !capabilities.acls {

409

            return Err(CoreError::new("RSYNC_OPTION_UNSUPPORTED", "The rsync that runs this job does not support ACLs."));

410 }

411 args.push("--acls".into());

412 }

413 if o.xattrs {

414 if !capabilities.xattrs {

415

            return Err(CoreError::new("RSYNC_OPTION_UNSUPPORTED", "The rsync that runs this job does not support extended attributes."));

416 }

417 args.push("--xattrs".into());

418 }

419 if o.resume && !dry_run {

420

        args.push(if capabilities.real_rsync { "--partial-dir=.chj-partial".to_string() } else { "--partial".to_string() });

421 }

422 if o.bandwidth_kib > 0 {

423 args.push(format!("--bwlimit={}", o.bandwidth_kib));

424 }

425 if o.timeout_seconds > 0 {

426 args.push(format!("--timeout={}", o.timeout_seconds));

427 }

428 if !o.max_size.is_empty() {

429 args.push(format!("--max-size={}", o.max_size));

430 }

431 if !o.min_size.is_empty() {

432 args.push(format!("--min-size={}", o.min_size));

433 }

434

    if !dry_run && matches!(spec.transport, Transport::Direct { .. }) && capabilities.real_rsync && (capabilities.major, capabilities.minor) >= (3, 2) {

435 args.push("--mkpath".into());

436 }

437 if !dry_run && capabilities.overall_progress() {

438 args.push("--info=progress2".into());

439 }

440 // Earlier versions of files never count as a difference or get transferred.

441 args.push(format!("--exclude=/{VERSIONS_DIR}/"));

442 for pattern in &o.includes {

443 args.push(format!("--include={pattern}"));

444 }

445 for pattern in &o.excludes {

446 args.push(format!("--exclude={pattern}"));

447 }

448 match spec.mode {

449 Mode::Copy => {}

450 Mode::Compare => {

451 args.push("--delete".into());

452 }

453 Mode::Mirror => {

454

            let accepted = if dry_run { None } else { Some(allowed_deletes.ok_or_else(|| invalid("Mirroring needs the preview first."))?) };

455 if accepted != Some(0) {

456 args.push("--delete".into());

457 args.push("--delete-after".into());

458 if let Some(limit) = accepted {

459 args.push(format!("--max-delete={limit}"));

460 }

461 if o.delete_excluded {

462 args.push("--delete-excluded".into());

463 args.push(format!("--filter=protect /{VERSIONS_DIR}/"));

464 }

465 }

466 }

467 Mode::Versioned => {

468 args.push("--backup".into());

469 args.push(format!("--backup-dir={}/{VERSIONS_DIR}/{stamp}", normalize(&spec.target.path)));

470 // Removed files move among the versions, still only as many as were accepted.

471

            let accepted = if dry_run { None } else { Some(allowed_deletes.ok_or_else(|| invalid("A versioned backup needs the preview first."))?) };

472 if accepted != Some(0) {

473 args.push("--delete".into());

474 args.push("--delete-after".into());

475 if let Some(limit) = accepted {

476 args.push(format!("--max-delete={limit}"));

477 }

478 }

479 }

480 Mode::Snapshot => {

481 args.push(format!("--link-dest={}/latest/", normalize(&spec.target.path)));

482 }

483 }

484 for option in &o.extra {

485 args.push(option.clone());

486 }

487 Ok(args)

488}

489

490#[cfg(test)]

491mod tests {

492 use super::*;

493 use serde_json::json;

494

495 fn base() -> Value {

496

        json!({ "mode": "copy", "source": { "kind": "local", "path": "/data/www" }, "target": { "kind": "ssh", "sessionId": "s1", "path": "/srv/www" } })

497 }

498

499 fn real() -> Capabilities {

500 Capabilities { real_rsync: true, major: 3, minor: 2, acls: true, xattrs: true }

501 }

502

503 #[test]

504 fn the_trailing_slash_is_an_explicit_choice() {

505 let mut value = base();

506 let spec = parse(&value).unwrap();

507 assert_eq!(source_argument(&spec), "/data/www/");

508 value["contentsOnly"] = json!(false);

509 assert_eq!(source_argument(&parse(&value).unwrap()), "/data/www");

510 value["source"]["path"] = json!("/data/www/");

511 assert_eq!(source_argument(&parse(&value).unwrap()), "/data/www");

512 }

513

514 #[test]

515 fn unsafe_paths_are_refused() {

516 for path in ["relative", "/a/../b", "/a/./b", "/a/*", "/a?", "/a[1]", "/a\nb", "", "/var//www"] {

517 let mut value = base();

518 value["target"]["path"] = json!(path);

519 assert_eq!(parse(&value).unwrap_err().code, "RSYNC_SPEC_INVALID", "{path}");

520 }

521 }

522

523 #[test]

524 fn nested_source_and_target_are_refused() {

525 for (from, to) in [("/a", "/a/b"), ("/a/b", "/a"), ("/a", "/a/"), ("/", "/a")] {

526

            let value = json!({ "source": { "kind": "local", "path": from }, "target": { "kind": "local", "path": to } });

527 assert!(parse(&value).is_err(), "{from} {to}");

528 }

529

        assert!(parse(&json!({ "source": { "kind": "local", "path": "/a" }, "target": { "kind": "local", "path": "/ab" } })).is_ok());

530

        assert!(parse(&json!({ "mode": "copy", "source": { "kind": "local", "path": "/b/.chj-versions/20261102T000000Z" }, "target": { "kind": "local", "path": "/b" } })).is_ok());

531

        assert!(parse(&json!({ "mode": "copy", "source": { "kind": "local", "path": "/b/20261102T000000Z" }, "target": { "kind": "local", "path": "/b" } })).is_ok());

532

        for (mode, from) in [("mirror", "/b/.chj-versions/20261102T000000Z"), ("copy", "/b/.chj-versions/other"), ("copy", "/b/sub")] {

533

            assert!(parse(&json!({ "mode": mode, "source": { "kind": "local", "path": from }, "target": { "kind": "local", "path": "/b" } })).is_err(), "{mode} {from}");

534 }

535 // The same path on two servers is a normal mirror.

536

        assert!(parse(&json!({ "source": { "kind": "ssh", "sessionId": "a", "path": "/a" }, "target": { "kind": "ssh", "sessionId": "b", "path": "/a" } })).is_ok());

537 }

538

539 #[test]

540 fn deleting_starts_only_from_an_accepted_preview() {

541 let mut value = base();

542 value["mode"] = json!("mirror");

543 let spec = parse(&value).unwrap();

544 assert_eq!(flags(&spec, &real(), false, "S", None).unwrap_err().code, "RSYNC_SPEC_INVALID");

545 let accepted = flags(&spec, &real(), false, "S", Some(3)).unwrap();

546 assert!(accepted.contains(&"--delete".to_string()) && accepted.contains(&"--max-delete=3".to_string()));

547 let none = flags(&spec, &real(), false, "S", Some(0)).unwrap();

548 assert!(!none.iter().any(|flag| flag.starts_with("--delete") || flag.starts_with("--max-delete")), "{none:?}");

549 let preview = flags(&spec, &real(), true, "S", None).unwrap();

550 assert!(preview.contains(&"--dry-run".to_string()) && preview.contains(&"--delete".to_string()));

551 let copy = parse(&base()).unwrap();

552 assert!(!flags(&copy, &real(), false, "S", None).unwrap().iter().any(|flag| flag.contains("delete")));

553 }

554

555 #[test]

556 fn modes_keep_older_versions_where_they_promise_to() {

557 let mut value = base();

558 value["mode"] = json!("versioned");

559 let versioned = flags(&parse(&value).unwrap(), &real(), false, "20261102T000000Z", Some(2)).unwrap();

560 assert!(versioned.contains(&"--backup".to_string()));

561 assert!(versioned.contains(&"--max-delete=2".to_string()), "{versioned:?}");

562 let none = flags(&parse(&value).unwrap(), &real(), false, "20261102T000000Z", Some(0)).unwrap();

563 assert!(!none.iter().any(|flag| flag.starts_with("--delete")), "{none:?}");

564 assert!(versioned.contains(&"--backup-dir=/srv/www/.chj-versions/20261102T000000Z".to_string()));

565 value["mode"] = json!("snapshot");

566 let spec = parse(&value).unwrap();

567 assert!(flags(&spec, &real(), false, "S", None).unwrap().contains(&"--link-dest=/srv/www/latest/".to_string()));

568 assert_eq!(target_argument(&spec, "S"), "/srv/www/S/");

569 }

570

571 #[test]

572 fn options_adapt_to_the_rsync_that_runs() {

573 let open = Capabilities::parse("openrsync: protocol version 29", false, false);

574 assert!(!open.real_rsync);

575 let spec = parse(&base()).unwrap();

576 let args = flags(&spec, &open, false, "S", None).unwrap();

577 assert!(!args.iter().any(|flag| flag.starts_with("--info")), "{args:?}");

578 assert!(args.contains(&"--partial".to_string()));

579 assert!(flags(&spec, &real(), false, "S", None).unwrap().contains(&"--info=progress2".to_string()));

580 let mut value = base();

581 value["options"] = json!({ "acls": true });

582

        assert_eq!(flags(&parse(&value).unwrap(), &open, false, "S", None).unwrap_err().code, "RSYNC_OPTION_UNSUPPORTED");

583 assert!(Capabilities::parse("rsync version 3.4.1 protocol version 32", true, true).overall_progress());

584 assert!(!Capabilities::parse("rsync version 3.0.9 protocol version 30", true, true).overall_progress());

585 }

586

587 #[test]

588 fn the_advanced_field_cannot_run_programs_or_touch_other_files() {

589

        for option in ["-e", "--rsh=sh", "-e=sh", "--rsync-path=sh", "--server", "--sender", "--daemon", "--log-file=/etc/passwd", "--files-from=/etc/shadow", "--password-file=x", "--write-batch=x", "--read-batch=x", "--backup-dir=/x", "--remove-source-files", "--delete", "--config=x", "-az", "--chmod=a;b", "--include-from=x", "--force", "--ignore-errors", "--delete-before", "--delete-during", "--delete-delay", "--delete-after", "--del", "--human-readable"] {

590 assert!(check_extra(option).is_err(), "{option}");

591 }

592 for option in ["--sparse", "--compress-level=9", "--chmod=D755,F644", "-z", "--modify-window=2"] {

593 assert!(check_extra(option).is_ok(), "{option}");

594 }

595 }

596

597 #[test]

598 fn protected_targets_are_recognized() {

599 for path in ["/", "/etc", "/etc/", "/home", "/home/josef", "/Users/josef", "/var/www"] {

600 assert!(is_protected(path), "{path}");

601 }

602 for path in ["/srv/backup", "/home/josef/backup", "/var/www/site"] {

603 assert!(!is_protected(path), "{path}");

604 }

605 }

606

607 #[test]

608 fn conflicting_options_and_bad_sizes_are_refused() {

609

        for options in [json!({ "checksum": true, "sizeOnly": true }), json!({ "updateOnly": true, "ignoreExisting": true }), json!({ "inplace": true }), json!({ "maxSize": "1 GB" }), json!({ "bandwidthKiB": -1 }), json!({ "symlinks": "x" }), json!({ "extra": ["--rsh=x"] })] {

610 let mut value = base();

611 value["options"] = options.clone();

612 assert!(parse(&value).is_err(), "{options}");

613 }

614 }

615

616 #[test]

617 fn a_direct_login_is_checked() {

618

        let mut value = json!({ "source": { "kind": "ssh", "sessionId": "a", "path": "/a" }, "target": { "kind": "ssh", "sessionId": "b", "path": "/b" }, "transport": { "kind": "direct", "host": "h.example", "username": "ai", "method": "key", "keyPath": "/home/ai/.ssh/id" } });

619 assert!(matches!(parse(&value).unwrap().transport, Transport::Direct { port: 22, .. }));

620 assert_eq!(parse(&value).unwrap().target.place, Place::Remote { session_id: DIRECT_TARGET.into() });

621 value["transport"]["keyPath"] = json!("/with space/key");

622 assert!(parse(&value).is_err());

623

        value["transport"] = json!({ "kind": "direct", "host": "-oProxyCommand=x", "username": "ai", "method": "password" });

624 assert!(parse(&value).is_err());

625 value["transport"] = json!({ "kind": "direct", "host": "h", "username": "-l", "method": "password" });

626 assert!(parse(&value).is_err());

627 // A key path is only for the key login, and it cannot carry ssh options.

628

        value["transport"] = json!({ "kind": "direct", "host": "h", "username": "u", "method": "agent", "keyPath": "/x -oProxyCommand=touch" });

629

        assert!(matches!(parse(&value).unwrap().transport, Transport::Direct { ref key_path, .. } if key_path.is_empty()));

630

        value["transport"] = json!({ "kind": "direct", "host": "h", "username": "u", "method": "key", "keyPath": "/x;id" });

631 assert!(parse(&value).is_err());

632 // The login shell of the target would read these.

633 for path in ["/backup/$(touch x)", "/backup/`id`", "/a b", "/a;b", "/a&b"] {

634

            let unsafe_target = json!({ "source": { "kind": "ssh", "sessionId": "a", "path": "/a" }, "target": { "path": path }, "transport": { "kind": "direct", "host": "h", "username": "u", "method": "password" } });

635 assert!(parse(&unsafe_target).is_err(), "{path}");

636 }

637 for extra in [json!({ "mode": "snapshot" }), json!({ "options": { "keepCount": 2 } })] {

638

            let mut job = json!({ "source": { "kind": "ssh", "sessionId": "a", "path": "/a" }, "target": { "path": "/b" }, "transport": { "kind": "direct", "host": "h", "username": "u", "method": "password" } });

639 for (key, item) in extra.as_object().unwrap() { job[key] = item.clone(); }

640 assert!(parse(&job).is_err(), "{extra}");

641 }

642 }

643}

644

SHA-256

77b3c8c9be1a9271e50f63abb29f8ef715b261c79a4fff7fbb44d9503237d867

CH-J Proprietary Software License 1.14 · سورس CH-J Proprietary Software License 1.14 کے تحت فراہم کیا جاتا ہے۔ اس کی دستیابی لائسنس کی شرائط نہیں بدلتی اور نہ ہی اضافی حقوق دیتی ہے۔

آرکائیو کا SHA-256

ac8fe790f4ba60fc098f8c985fc2656cfcc6cdc21fb34b30e308a2b54e62258f