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Commit | Line | Data |
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51b499db DM |
1 | //! Tools and utilities |
2 | //! | |
3 | //! This is a collection of small and useful tools. | |
6100071f WB |
4 | use std::any::Any; |
5 | use std::collections::HashMap; | |
62ee2eb4 | 6 | use std::hash::BuildHasher; |
365bb90f | 7 | use std::fs::{File, OpenOptions}; |
43eeef28 | 8 | use std::io::ErrorKind; |
6100071f | 9 | use std::io::Read; |
d96bb7f1 | 10 | use std::os::unix::io::{AsRawFd, FromRawFd, IntoRawFd, RawFd}; |
6100071f WB |
11 | use std::path::Path; |
12 | use std::time::Duration; | |
365bb90f | 13 | |
6100071f | 14 | use failure::*; |
af926291 | 15 | use serde_json::Value; |
c5946faf | 16 | use openssl::hash::{hash, DigestBytes, MessageDigest}; |
8a1028e0 | 17 | use percent_encoding::AsciiSet; |
0fe5d605 | 18 | |
f35197f4 WB |
19 | use proxmox::tools::vec; |
20 | ||
6100071f | 21 | pub mod acl; |
556eb70e | 22 | pub mod async_io; |
6ed25cbe | 23 | pub mod borrow; |
6100071f | 24 | pub mod daemon; |
b4d5787d | 25 | pub mod fs; |
daef93f4 | 26 | pub mod runtime; |
6100071f WB |
27 | pub mod ticket; |
28 | pub mod timer; | |
29 | pub mod tty; | |
30 | pub mod wrapped_reader_stream; | |
2dcdd3b4 | 31 | pub mod xattr; |
8cf6e764 | 32 | |
a650f503 DM |
33 | mod process_locker; |
34 | pub use process_locker::*; | |
35 | ||
3b151414 DM |
36 | mod file_logger; |
37 | pub use file_logger::*; | |
38 | ||
490be29e DM |
39 | mod broadcast_future; |
40 | pub use broadcast_future::*; | |
41 | ||
fded74d0 | 42 | /// The `BufferedRead` trait provides a single function |
0a72e267 DM |
43 | /// `buffered_read`. It returns a reference to an internal buffer. The |
44 | /// purpose of this traid is to avoid unnecessary data copies. | |
fded74d0 | 45 | pub trait BufferedRead { |
318564ac DM |
46 | /// This functions tries to fill the internal buffers, then |
47 | /// returns a reference to the available data. It returns an empty | |
48 | /// buffer if `offset` points to the end of the file. | |
0a72e267 DM |
49 | fn buffered_read(&mut self, offset: u64) -> Result<&[u8], Error>; |
50 | } | |
51 | ||
51b499db DM |
52 | /// Directly map a type into a binary buffer. This is mostly useful |
53 | /// for reading structured data from a byte stream (file). You need to | |
54 | /// make sure that the buffer location does not change, so please | |
55 | /// avoid vec resize while you use such map. | |
56 | /// | |
57 | /// This function panics if the buffer is not large enough. | |
50ea4396 | 58 | pub fn map_struct<T>(buffer: &[u8]) -> Result<&T, Error> { |
dc3de618 DM |
59 | if buffer.len() < ::std::mem::size_of::<T>() { |
60 | bail!("unable to map struct - buffer too small"); | |
61 | } | |
6100071f | 62 | Ok(unsafe { &*(buffer.as_ptr() as *const T) }) |
dc3de618 DM |
63 | } |
64 | ||
51b499db DM |
65 | /// Directly map a type into a mutable binary buffer. This is mostly |
66 | /// useful for writing structured data into a byte stream (file). You | |
67 | /// need to make sure that the buffer location does not change, so | |
68 | /// please avoid vec resize while you use such map. | |
69 | /// | |
70 | /// This function panics if the buffer is not large enough. | |
50ea4396 | 71 | pub fn map_struct_mut<T>(buffer: &mut [u8]) -> Result<&mut T, Error> { |
dc3de618 DM |
72 | if buffer.len() < ::std::mem::size_of::<T>() { |
73 | bail!("unable to map struct - buffer too small"); | |
74 | } | |
6100071f | 75 | Ok(unsafe { &mut *(buffer.as_ptr() as *mut T) }) |
dc3de618 DM |
76 | } |
77 | ||
51b499db DM |
78 | /// Create a file lock using fntl. This function allows you to specify |
79 | /// a timeout if you want to avoid infinite blocking. | |
1628a4c7 WB |
80 | pub fn lock_file<F: AsRawFd>( |
81 | file: &mut F, | |
82 | exclusive: bool, | |
83 | timeout: Option<Duration>, | |
eb90c9e3 | 84 | ) -> Result<(), Error> { |
6100071f WB |
85 | let lockarg = if exclusive { |
86 | nix::fcntl::FlockArg::LockExclusive | |
87 | } else { | |
88 | nix::fcntl::FlockArg::LockShared | |
89 | }; | |
1628a4c7 WB |
90 | |
91 | let timeout = match timeout { | |
92 | None => { | |
93 | nix::fcntl::flock(file.as_raw_fd(), lockarg)?; | |
94 | return Ok(()); | |
95 | } | |
96 | Some(t) => t, | |
97 | }; | |
98 | ||
99 | // unblock the timeout signal temporarily | |
100 | let _sigblock_guard = timer::unblock_timeout_signal(); | |
101 | ||
102 | // setup a timeout timer | |
103 | let mut timer = timer::Timer::create( | |
104 | timer::Clock::Realtime, | |
6100071f WB |
105 | timer::TimerEvent::ThisThreadSignal(timer::SIGTIMEOUT), |
106 | )?; | |
1628a4c7 | 107 | |
6100071f WB |
108 | timer.arm( |
109 | timer::TimerSpec::new() | |
110 | .value(Some(timeout)) | |
111 | .interval(Some(Duration::from_millis(10))), | |
112 | )?; | |
1628a4c7 WB |
113 | |
114 | nix::fcntl::flock(file.as_raw_fd(), lockarg)?; | |
115 | Ok(()) | |
116 | } | |
365bb90f | 117 | |
51b499db DM |
118 | /// Open or create a lock file (append mode). Then try to |
119 | /// aquire a lock using `lock_file()`. | |
6100071f | 120 | pub fn open_file_locked<P: AsRef<Path>>(path: P, timeout: Duration) -> Result<File, Error> { |
1628a4c7 | 121 | let path = path.as_ref(); |
6100071f WB |
122 | let mut file = match OpenOptions::new().create(true).append(true).open(path) { |
123 | Ok(file) => file, | |
124 | Err(err) => bail!("Unable to open lock {:?} - {}", path, err), | |
125 | }; | |
28b96b56 DM |
126 | match lock_file(&mut file, true, Some(timeout)) { |
127 | Ok(_) => Ok(file), | |
6100071f | 128 | Err(err) => bail!("Unable to aquire lock {:?} - {}", path, err), |
28b96b56 | 129 | } |
365bb90f DM |
130 | } |
131 | ||
51b499db DM |
132 | /// Split a file into equal sized chunks. The last chunk may be |
133 | /// smaller. Note: We cannot implement an `Iterator`, because iterators | |
134 | /// cannot return a borrowed buffer ref (we want zero-copy) | |
6100071f WB |
135 | pub fn file_chunker<C, R>(mut file: R, chunk_size: usize, mut chunk_cb: C) -> Result<(), Error> |
136 | where | |
137 | C: FnMut(usize, &[u8]) -> Result<bool, Error>, | |
138 | R: Read, | |
43eeef28 | 139 | { |
6100071f | 140 | const READ_BUFFER_SIZE: usize = 4 * 1024 * 1024; // 4M |
43eeef28 | 141 | |
6100071f WB |
142 | if chunk_size > READ_BUFFER_SIZE { |
143 | bail!("chunk size too large!"); | |
144 | } | |
43eeef28 | 145 | |
8ea3b1d1 | 146 | let mut buf = vec::undefined(READ_BUFFER_SIZE); |
43eeef28 DM |
147 | |
148 | let mut pos = 0; | |
149 | let mut file_pos = 0; | |
150 | loop { | |
151 | let mut eof = false; | |
152 | let mut tmp = &mut buf[..]; | |
6100071f | 153 | // try to read large portions, at least chunk_size |
43eeef28 DM |
154 | while pos < chunk_size { |
155 | match file.read(tmp) { | |
6100071f WB |
156 | Ok(0) => { |
157 | eof = true; | |
158 | break; | |
159 | } | |
43eeef28 DM |
160 | Ok(n) => { |
161 | pos += n; | |
6100071f WB |
162 | if pos > chunk_size { |
163 | break; | |
164 | } | |
43eeef28 DM |
165 | tmp = &mut tmp[n..]; |
166 | } | |
167 | Err(ref e) if e.kind() == ErrorKind::Interrupted => { /* try again */ } | |
5f0c2d56 | 168 | Err(e) => bail!("read chunk failed - {}", e.to_string()), |
43eeef28 DM |
169 | } |
170 | } | |
43eeef28 DM |
171 | let mut start = 0; |
172 | while start + chunk_size <= pos { | |
6100071f WB |
173 | if !(chunk_cb)(file_pos, &buf[start..start + chunk_size])? { |
174 | break; | |
175 | } | |
43eeef28 DM |
176 | file_pos += chunk_size; |
177 | start += chunk_size; | |
178 | } | |
179 | if eof { | |
180 | if start < pos { | |
181 | (chunk_cb)(file_pos, &buf[start..pos])?; | |
182 | //file_pos += pos - start; | |
183 | } | |
184 | break; | |
185 | } else { | |
186 | let rest = pos - start; | |
187 | if rest > 0 { | |
188 | let ptr = buf.as_mut_ptr(); | |
6100071f WB |
189 | unsafe { |
190 | std::ptr::copy_nonoverlapping(ptr.add(start), ptr, rest); | |
191 | } | |
43eeef28 DM |
192 | pos = rest; |
193 | } else { | |
194 | pos = 0; | |
195 | } | |
196 | } | |
197 | } | |
198 | ||
199 | Ok(()) | |
43eeef28 | 200 | } |
0fe5d605 | 201 | |
f5f13ebc | 202 | pub fn json_object_to_query(data: Value) -> Result<String, Error> { |
f5f13ebc DM |
203 | let mut query = url::form_urlencoded::Serializer::new(String::new()); |
204 | ||
205 | let object = data.as_object().ok_or_else(|| { | |
206 | format_err!("json_object_to_query: got wrong data type (expected object).") | |
207 | })?; | |
208 | ||
209 | for (key, value) in object { | |
210 | match value { | |
6100071f WB |
211 | Value::Bool(b) => { |
212 | query.append_pair(key, &b.to_string()); | |
213 | } | |
214 | Value::Number(n) => { | |
215 | query.append_pair(key, &n.to_string()); | |
216 | } | |
217 | Value::String(s) => { | |
218 | query.append_pair(key, &s); | |
219 | } | |
f5f13ebc DM |
220 | Value::Array(arr) => { |
221 | for element in arr { | |
222 | match element { | |
6100071f WB |
223 | Value::Bool(b) => { |
224 | query.append_pair(key, &b.to_string()); | |
225 | } | |
226 | Value::Number(n) => { | |
227 | query.append_pair(key, &n.to_string()); | |
228 | } | |
229 | Value::String(s) => { | |
230 | query.append_pair(key, &s); | |
231 | } | |
232 | _ => bail!( | |
233 | "json_object_to_query: unable to handle complex array data types." | |
234 | ), | |
f5f13ebc DM |
235 | } |
236 | } | |
237 | } | |
238 | _ => bail!("json_object_to_query: unable to handle complex data types."), | |
239 | } | |
240 | } | |
241 | ||
242 | Ok(query.finish()) | |
243 | } | |
244 | ||
0fe5d605 | 245 | pub fn required_string_param<'a>(param: &'a Value, name: &str) -> Result<&'a str, Error> { |
6100071f | 246 | match param[name].as_str() { |
0fe5d605 DM |
247 | Some(s) => Ok(s), |
248 | None => bail!("missing parameter '{}'", name), | |
249 | } | |
250 | } | |
0d38dcb4 | 251 | |
e17d5d86 DM |
252 | pub fn required_string_property<'a>(param: &'a Value, name: &str) -> Result<&'a str, Error> { |
253 | match param[name].as_str() { | |
254 | Some(s) => Ok(s), | |
255 | None => bail!("missing property '{}'", name), | |
256 | } | |
257 | } | |
258 | ||
0d38dcb4 | 259 | pub fn required_integer_param<'a>(param: &'a Value, name: &str) -> Result<i64, Error> { |
6100071f | 260 | match param[name].as_i64() { |
0d38dcb4 DM |
261 | Some(s) => Ok(s), |
262 | None => bail!("missing parameter '{}'", name), | |
f8dfbb45 DM |
263 | } |
264 | } | |
265 | ||
e17d5d86 DM |
266 | pub fn required_integer_property<'a>(param: &'a Value, name: &str) -> Result<i64, Error> { |
267 | match param[name].as_i64() { | |
268 | Some(s) => Ok(s), | |
269 | None => bail!("missing property '{}'", name), | |
270 | } | |
271 | } | |
272 | ||
f8dfbb45 | 273 | pub fn required_array_param<'a>(param: &'a Value, name: &str) -> Result<Vec<Value>, Error> { |
6100071f | 274 | match param[name].as_array() { |
f8dfbb45 DM |
275 | Some(s) => Ok(s.to_vec()), |
276 | None => bail!("missing parameter '{}'", name), | |
0d38dcb4 DM |
277 | } |
278 | } | |
383e8577 | 279 | |
e17d5d86 DM |
280 | pub fn required_array_property<'a>(param: &'a Value, name: &str) -> Result<Vec<Value>, Error> { |
281 | match param[name].as_array() { | |
282 | Some(s) => Ok(s.to_vec()), | |
283 | None => bail!("missing property '{}'", name), | |
284 | } | |
285 | } | |
286 | ||
62ee2eb4 | 287 | pub fn complete_file_name<S: BuildHasher>(arg: &str, _param: &HashMap<String, String, S>) -> Vec<String> { |
383e8577 DM |
288 | let mut result = vec![]; |
289 | ||
6100071f | 290 | use nix::fcntl::AtFlags; |
383e8577 DM |
291 | use nix::fcntl::OFlag; |
292 | use nix::sys::stat::Mode; | |
383e8577 | 293 | |
62ee2eb4 | 294 | let mut dirname = std::path::PathBuf::from(if arg.is_empty() { "./" } else { arg }); |
383e8577 DM |
295 | |
296 | let is_dir = match nix::sys::stat::fstatat(libc::AT_FDCWD, &dirname, AtFlags::empty()) { | |
297 | Ok(stat) => (stat.st_mode & libc::S_IFMT) == libc::S_IFDIR, | |
298 | Err(_) => false, | |
299 | }; | |
300 | ||
301 | if !is_dir { | |
302 | if let Some(parent) = dirname.parent() { | |
303 | dirname = parent.to_owned(); | |
304 | } | |
305 | } | |
306 | ||
6100071f WB |
307 | let mut dir = |
308 | match nix::dir::Dir::openat(libc::AT_FDCWD, &dirname, OFlag::O_DIRECTORY, Mode::empty()) { | |
309 | Ok(d) => d, | |
310 | Err(_) => return result, | |
311 | }; | |
383e8577 DM |
312 | |
313 | for item in dir.iter() { | |
314 | if let Ok(entry) = item { | |
315 | if let Ok(name) = entry.file_name().to_str() { | |
6100071f WB |
316 | if name == "." || name == ".." { |
317 | continue; | |
318 | } | |
383e8577 DM |
319 | let mut newpath = dirname.clone(); |
320 | newpath.push(name); | |
321 | ||
6100071f WB |
322 | if let Ok(stat) = |
323 | nix::sys::stat::fstatat(libc::AT_FDCWD, &newpath, AtFlags::empty()) | |
324 | { | |
383e8577 DM |
325 | if (stat.st_mode & libc::S_IFMT) == libc::S_IFDIR { |
326 | newpath.push(""); | |
327 | if let Some(newpath) = newpath.to_str() { | |
328 | result.push(newpath.to_owned()); | |
329 | } | |
330 | continue; | |
6100071f | 331 | } |
383e8577 DM |
332 | } |
333 | if let Some(newpath) = newpath.to_str() { | |
334 | result.push(newpath.to_owned()); | |
335 | } | |
6100071f | 336 | } |
383e8577 DM |
337 | } |
338 | } | |
339 | ||
340 | result | |
341 | } | |
443f3743 DM |
342 | |
343 | /// Scan directory for matching file names. | |
344 | /// | |
345 | /// Scan through all directory entries and call `callback()` function | |
346 | /// if the entry name matches the regular expression. This function | |
347 | /// used unix `openat()`, so you can pass absolute or relative file | |
348 | /// names. This function simply skips non-UTF8 encoded names. | |
349 | pub fn scandir<P, F>( | |
350 | dirfd: RawFd, | |
121f18ef | 351 | path: &P, |
443f3743 | 352 | regex: ®ex::Regex, |
6100071f | 353 | mut callback: F, |
443f3743 | 354 | ) -> Result<(), Error> |
6100071f WB |
355 | where |
356 | F: FnMut(RawFd, &str, nix::dir::Type) -> Result<(), Error>, | |
357 | P: ?Sized + nix::NixPath, | |
443f3743 | 358 | { |
121f18ef | 359 | for entry in self::fs::scan_subdir(dirfd, path, regex)? { |
443f3743 DM |
360 | let entry = entry?; |
361 | let file_type = match entry.file_type() { | |
362 | Some(file_type) => file_type, | |
363 | None => bail!("unable to detect file type"), | |
364 | }; | |
443f3743 | 365 | |
6100071f WB |
366 | callback( |
367 | entry.parent_fd(), | |
368 | unsafe { entry.file_name_utf8_unchecked() }, | |
369 | file_type, | |
370 | )?; | |
443f3743 DM |
371 | } |
372 | Ok(()) | |
373 | } | |
7e13b2d6 | 374 | |
c5946faf WB |
375 | /// Shortcut for md5 sums. |
376 | pub fn md5sum(data: &[u8]) -> Result<DigestBytes, Error> { | |
377 | hash(MessageDigest::md5(), data).map_err(Error::from) | |
378 | } | |
379 | ||
7e13b2d6 | 380 | pub fn get_hardware_address() -> Result<String, Error> { |
1631c54f | 381 | static FILENAME: &str = "/etc/ssh/ssh_host_rsa_key.pub"; |
7e13b2d6 | 382 | |
e18a6c9e | 383 | let contents = proxmox::tools::fs::file_get_contents(FILENAME)?; |
c5946faf | 384 | let digest = md5sum(&contents)?; |
7e13b2d6 | 385 | |
c5946faf | 386 | Ok(proxmox::tools::bin_to_hex(&digest)) |
7e13b2d6 | 387 | } |
22968600 | 388 | |
af2fddea DM |
389 | pub fn assert_if_modified(digest1: &str, digest2: &str) -> Result<(), Error> { |
390 | if digest1 != digest2 { | |
6100071f | 391 | bail!("detected modified configuration - file changed by other user? Try again."); |
af2fddea DM |
392 | } |
393 | Ok(()) | |
394 | } | |
b9903d63 DM |
395 | |
396 | /// Extract authentication cookie from cookie header. | |
397 | /// We assume cookie_name is already url encoded. | |
398 | pub fn extract_auth_cookie(cookie: &str, cookie_name: &str) -> Option<String> { | |
b9903d63 | 399 | for pair in cookie.split(';') { |
b9903d63 DM |
400 | let (name, value) = match pair.find('=') { |
401 | Some(i) => (pair[..i].trim(), pair[(i + 1)..].trim()), | |
402 | None => return None, // Cookie format error | |
403 | }; | |
404 | ||
405 | if name == cookie_name { | |
8a1028e0 | 406 | use percent_encoding::percent_decode; |
b9903d63 DM |
407 | if let Ok(value) = percent_decode(value.as_bytes()).decode_utf8() { |
408 | return Some(value.into()); | |
409 | } else { | |
410 | return None; // Cookie format error | |
411 | } | |
412 | } | |
413 | } | |
414 | ||
415 | None | |
416 | } | |
af53186e DM |
417 | |
418 | pub fn join(data: &Vec<String>, sep: char) -> String { | |
af53186e DM |
419 | let mut list = String::new(); |
420 | ||
421 | for item in data { | |
62ee2eb4 | 422 | if !list.is_empty() { |
6100071f WB |
423 | list.push(sep); |
424 | } | |
af53186e DM |
425 | list.push_str(item); |
426 | } | |
427 | ||
428 | list | |
429 | } | |
ff7049d4 | 430 | |
3578d99f DM |
431 | /// normalize uri path |
432 | /// | |
433 | /// Do not allow ".", "..", or hidden files ".XXXX" | |
434 | /// Also remove empty path components | |
435 | pub fn normalize_uri_path(path: &str) -> Result<(String, Vec<&str>), Error> { | |
3578d99f DM |
436 | let items = path.split('/'); |
437 | ||
438 | let mut path = String::new(); | |
439 | let mut components = vec![]; | |
440 | ||
441 | for name in items { | |
6100071f WB |
442 | if name.is_empty() { |
443 | continue; | |
444 | } | |
62ee2eb4 | 445 | if name.starts_with('.') { |
3578d99f DM |
446 | bail!("Path contains illegal components."); |
447 | } | |
448 | path.push('/'); | |
449 | path.push_str(name); | |
450 | components.push(name); | |
451 | } | |
452 | ||
453 | Ok((path, components)) | |
454 | } | |
455 | ||
ff7049d4 | 456 | pub fn fd_change_cloexec(fd: RawFd, on: bool) -> Result<(), Error> { |
6100071f | 457 | use nix::fcntl::{fcntl, FdFlag, F_GETFD, F_SETFD}; |
ff7049d4 WB |
458 | let mut flags = FdFlag::from_bits(fcntl(fd, F_GETFD)?) |
459 | .ok_or_else(|| format_err!("unhandled file flags"))?; // nix crate is stupid this way... | |
460 | flags.set(FdFlag::FD_CLOEXEC, on); | |
461 | fcntl(fd, F_SETFD(flags))?; | |
462 | Ok(()) | |
463 | } | |
9136f857 | 464 | |
9136f857 DM |
465 | static mut SHUTDOWN_REQUESTED: bool = false; |
466 | ||
467 | pub fn request_shutdown() { | |
6100071f WB |
468 | unsafe { |
469 | SHUTDOWN_REQUESTED = true; | |
470 | } | |
7a630df7 | 471 | crate::server::server_shutdown(); |
9136f857 DM |
472 | } |
473 | ||
474 | #[inline(always)] | |
475 | pub fn shutdown_requested() -> bool { | |
476 | unsafe { SHUTDOWN_REQUESTED } | |
477 | } | |
92da93b2 DM |
478 | |
479 | pub fn fail_on_shutdown() -> Result<(), Error> { | |
480 | if shutdown_requested() { | |
481 | bail!("Server shutdown requested - aborting task"); | |
482 | } | |
483 | Ok(()) | |
484 | } | |
d96bb7f1 WB |
485 | |
486 | /// Guard a raw file descriptor with a drop handler. This is mostly useful when access to an owned | |
487 | /// `RawFd` is required without the corresponding handler object (such as when only the file | |
488 | /// descriptor number is required in a closure which may be dropped instead of being executed). | |
489 | pub struct Fd(pub RawFd); | |
490 | ||
491 | impl Drop for Fd { | |
492 | fn drop(&mut self) { | |
493 | if self.0 != -1 { | |
494 | unsafe { | |
495 | libc::close(self.0); | |
496 | } | |
497 | } | |
498 | } | |
499 | } | |
500 | ||
501 | impl AsRawFd for Fd { | |
502 | fn as_raw_fd(&self) -> RawFd { | |
503 | self.0 | |
504 | } | |
505 | } | |
506 | ||
507 | impl IntoRawFd for Fd { | |
508 | fn into_raw_fd(mut self) -> RawFd { | |
509 | let fd = self.0; | |
510 | self.0 = -1; | |
511 | fd | |
512 | } | |
513 | } | |
514 | ||
515 | impl FromRawFd for Fd { | |
516 | unsafe fn from_raw_fd(fd: RawFd) -> Self { | |
517 | Self(fd) | |
518 | } | |
519 | } | |
efd1536e WB |
520 | |
521 | // wrap nix::unistd::pipe2 + O_CLOEXEC into something returning guarded file descriptors | |
522 | pub fn pipe() -> Result<(Fd, Fd), Error> { | |
523 | let (pin, pout) = nix::unistd::pipe2(nix::fcntl::OFlag::O_CLOEXEC)?; | |
524 | Ok((Fd(pin), Fd(pout))) | |
525 | } | |
2edc341b DM |
526 | |
527 | /// An easy way to convert types to Any | |
528 | /// | |
529 | /// Mostly useful to downcast trait objects (see RpcEnvironment). | |
530 | pub trait AsAny { | |
dd5495d6 | 531 | fn as_any(&self) -> &dyn Any; |
2edc341b DM |
532 | } |
533 | ||
534 | impl<T: Any> AsAny for T { | |
6100071f WB |
535 | fn as_any(&self) -> &dyn Any { |
536 | self | |
537 | } | |
2edc341b | 538 | } |
8a1028e0 WB |
539 | |
540 | /// This used to be: `SIMPLE_ENCODE_SET` plus space, `"`, `#`, `<`, `>`, backtick, `?`, `{`, `}` | |
541 | pub const DEFAULT_ENCODE_SET: &AsciiSet = &percent_encoding::CONTROLS // 0..1f and 7e | |
542 | // The SIMPLE_ENCODE_SET adds space and anything >= 0x7e (7e itself is already included above) | |
543 | .add(0x20) | |
544 | .add(0x7f) | |
545 | // the DEFAULT_ENCODE_SET added: | |
546 | .add(b' ') | |
547 | .add(b'"') | |
548 | .add(b'#') | |
549 | .add(b'<') | |
550 | .add(b'>') | |
551 | .add(b'`') | |
552 | .add(b'?') | |
553 | .add(b'{') | |
554 | .add(b'}'); |