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ops.rs
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// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
use crate::ansi;
use crate::deno_error;
use crate::deno_error::DenoError;
use crate::deno_error::ErrorKind;
use crate::deno_error::GetErrorKind;
use crate::dispatch_minimal::dispatch_minimal;
use crate::dispatch_minimal::parse_min_record;
use crate::fmt_errors::JSError;
use crate::fs as deno_fs;
use crate::http_util;
use crate::msg;
use crate::msg_util;
use crate::rand;
use crate::repl;
use crate::resolve_addr::resolve_addr;
use crate::resources;
use crate::resources::table_entries;
use crate::resources::Resource;
use crate::signal::kill;
use crate::source_maps::get_orig_position;
use crate::source_maps::CachedMaps;
use crate::startup_data;
use crate::state::ThreadSafeState;
use crate::tokio_util;
use crate::tokio_write;
use crate::version;
use crate::worker::Worker;
use atty;
use deno::Buf;
use deno::CoreOp;
use deno::ErrBox;
use deno::Loader;
use deno::ModuleSpecifier;
use deno::Op;
use deno::OpResult;
use deno::PinnedBuf;
use flatbuffers::FlatBufferBuilder;
use futures;
use futures::Async;
use futures::Poll;
use futures::Sink;
use futures::Stream;
use hyper;
use hyper::rt::Future;
use log;
use rand::{thread_rng, Rng};
use remove_dir_all::remove_dir_all;
use std;
use std::collections::HashMap;
use std::convert::From;
use std::fs;
use std::net::Shutdown;
use std::path::PathBuf;
use std::process::Command;
use std::time::{Duration, Instant, UNIX_EPOCH};
use tokio;
use tokio::net::TcpListener;
use tokio::net::TcpStream;
use tokio_process::CommandExt;
use tokio_threadpool;
use url::Url;
use utime;
#[cfg(unix)]
use std::os::unix::fs::PermissionsExt;
#[cfg(unix)]
use std::os::unix::process::ExitStatusExt;
type CliOpResult = OpResult<ErrBox>;
type CliDispatchFn = fn(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult;
pub type OpSelector = fn(inner_type: msg::Any) -> Option<CliDispatchFn>;
#[inline]
fn empty_buf() -> Buf {
Box::new([])
}
pub fn dispatch_all(
state: &ThreadSafeState,
control: &[u8],
zero_copy: Option<PinnedBuf>,
op_selector: OpSelector,
) -> CoreOp {
let bytes_sent_control = control.len();
let bytes_sent_zero_copy = zero_copy.as_ref().map(|b| b.len()).unwrap_or(0);
let op = if let Some(min_record) = parse_min_record(control) {
dispatch_minimal(state, min_record, zero_copy)
} else {
dispatch_all_legacy(state, control, zero_copy, op_selector)
};
state.metrics_op_dispatched(bytes_sent_control, bytes_sent_zero_copy);
op
}
/// Processes raw messages from JavaScript.
/// This functions invoked every time Deno.core.dispatch() is called.
/// control corresponds to the first argument of Deno.core.dispatch().
/// data corresponds to the second argument of Deno.core.dispatch().
pub fn dispatch_all_legacy(
state: &ThreadSafeState,
control: &[u8],
zero_copy: Option<PinnedBuf>,
op_selector: OpSelector,
) -> CoreOp {
let base = msg::get_root_as_base(&control);
let inner_type = base.inner_type();
let is_sync = base.sync();
let cmd_id = base.cmd_id();
debug!(
"msg_from_js {} sync {}",
msg::enum_name_any(inner_type),
is_sync
);
let op_func: CliDispatchFn = match op_selector(inner_type) {
Some(v) => v,
None => panic!("Unhandled message {}", msg::enum_name_any(inner_type)),
};
let op_result = op_func(state, &base, zero_copy);
let state = state.clone();
match op_result {
Ok(Op::Sync(buf)) => {
state.metrics_op_completed(buf.len());
Op::Sync(buf)
}
Ok(Op::Async(fut)) => {
let result_fut = Box::new(
fut
.or_else(move |err: ErrBox| -> Result<Buf, ()> {
debug!("op err {}", err);
// No matter whether we got an Err or Ok, we want a serialized message to
// send back. So transform the DenoError into a Buf.
let builder = &mut FlatBufferBuilder::new();
let errmsg_offset = builder.create_string(&format!("{}", err));
Ok(serialize_response(
cmd_id,
builder,
msg::BaseArgs {
error: Some(errmsg_offset),
error_kind: err.kind(),
..Default::default()
},
))
})
.and_then(move |buf: Buf| -> Result<Buf, ()> {
// Handle empty responses. For sync responses we just want
// to send null. For async we want to send a small message
// with the cmd_id.
let buf = if buf.len() > 0 {
buf
} else {
let builder = &mut FlatBufferBuilder::new();
serialize_response(
cmd_id,
builder,
msg::BaseArgs {
..Default::default()
},
)
};
state.metrics_op_completed(buf.len());
Ok(buf)
})
.map_err(|err| panic!("unexpected error {:?}", err)),
);
Op::Async(result_fut)
}
Err(err) => {
debug!("op err {}", err);
// No matter whether we got an Err or Ok, we want a serialized message to
// send back. So transform the DenoError into a Buf.
let builder = &mut FlatBufferBuilder::new();
let errmsg_offset = builder.create_string(&format!("{}", err));
let response_buf = serialize_response(
cmd_id,
builder,
msg::BaseArgs {
error: Some(errmsg_offset),
error_kind: err.kind(),
..Default::default()
},
);
state.metrics_op_completed(response_buf.len());
Op::Sync(response_buf)
}
}
}
/// Standard ops set for most isolates
pub fn op_selector_std(inner_type: msg::Any) -> Option<CliDispatchFn> {
match inner_type {
msg::Any::Accept => Some(op_accept),
msg::Any::ApplySourceMap => Some(op_apply_source_map),
msg::Any::Cache => Some(op_cache),
msg::Any::Chdir => Some(op_chdir),
msg::Any::Chmod => Some(op_chmod),
msg::Any::Chown => Some(op_chown),
msg::Any::Close => Some(op_close),
msg::Any::CopyFile => Some(op_copy_file),
msg::Any::CreateWorker => Some(op_create_worker),
msg::Any::Cwd => Some(op_cwd),
msg::Any::Dial => Some(op_dial),
msg::Any::Environ => Some(op_env),
msg::Any::Exit => Some(op_exit),
msg::Any::Fetch => Some(op_fetch),
msg::Any::FetchSourceFile => Some(op_fetch_source_file),
msg::Any::FormatError => Some(op_format_error),
msg::Any::GetRandomValues => Some(op_get_random_values),
msg::Any::GlobalTimer => Some(op_global_timer),
msg::Any::GlobalTimerStop => Some(op_global_timer_stop),
msg::Any::HostGetMessage => Some(op_host_get_message),
msg::Any::HostGetWorkerClosed => Some(op_host_get_worker_closed),
msg::Any::HostPostMessage => Some(op_host_post_message),
msg::Any::IsTTY => Some(op_is_tty),
msg::Any::Kill => Some(op_kill),
msg::Any::Link => Some(op_link),
msg::Any::Listen => Some(op_listen),
msg::Any::MakeTempDir => Some(op_make_temp_dir),
msg::Any::Metrics => Some(op_metrics),
msg::Any::Mkdir => Some(op_mkdir),
msg::Any::Now => Some(op_now),
msg::Any::Open => Some(op_open),
msg::Any::PermissionRevoke => Some(op_revoke_permission),
msg::Any::Permissions => Some(op_permissions),
msg::Any::Read => Some(op_read),
msg::Any::ReadDir => Some(op_read_dir),
msg::Any::Readlink => Some(op_read_link),
msg::Any::Remove => Some(op_remove),
msg::Any::Rename => Some(op_rename),
msg::Any::ReplReadline => Some(op_repl_readline),
msg::Any::ReplStart => Some(op_repl_start),
msg::Any::Resources => Some(op_resources),
msg::Any::Run => Some(op_run),
msg::Any::RunStatus => Some(op_run_status),
msg::Any::Seek => Some(op_seek),
msg::Any::SetEnv => Some(op_set_env),
msg::Any::Shutdown => Some(op_shutdown),
msg::Any::Start => Some(op_start),
msg::Any::Stat => Some(op_stat),
msg::Any::Symlink => Some(op_symlink),
msg::Any::Truncate => Some(op_truncate),
msg::Any::HomeDir => Some(op_home_dir),
msg::Any::Utime => Some(op_utime),
msg::Any::Write => Some(op_write),
// TODO(ry) split these out so that only the appropriate Workers can access
// them.
msg::Any::WorkerGetMessage => Some(op_worker_get_message),
msg::Any::WorkerPostMessage => Some(op_worker_post_message),
_ => None,
}
}
// Returns a milliseconds and nanoseconds subsec
// since the start time of the deno runtime.
// If the High precision flag is not set, the
// nanoseconds are rounded on 2ms.
fn op_now(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let seconds = state.start_time.elapsed().as_secs();
let mut subsec_nanos = state.start_time.elapsed().subsec_nanos();
let reduced_time_precision = 2_000_000; // 2ms in nanoseconds
// If the permission is not enabled
// Round the nano result on 2 milliseconds
// see: https://developer.mozilla.org/en-US/docs/Web/API/DOMHighResTimeStamp#Reduced_time_precision
if !state.permissions.allows_hrtime() {
subsec_nanos -= subsec_nanos % reduced_time_precision
}
let builder = &mut FlatBufferBuilder::new();
let inner = msg::NowRes::create(
builder,
&msg::NowResArgs {
seconds,
subsec_nanos,
},
);
ok_buf(serialize_response(
base.cmd_id(),
builder,
msg::BaseArgs {
inner: Some(inner.as_union_value()),
inner_type: msg::Any::NowRes,
..Default::default()
},
))
}
fn op_is_tty(
_state: &ThreadSafeState,
base: &msg::Base<'_>,
_data: Option<PinnedBuf>,
) -> CliOpResult {
let builder = &mut FlatBufferBuilder::new();
let inner = msg::IsTTYRes::create(
builder,
&msg::IsTTYResArgs {
stdin: atty::is(atty::Stream::Stdin),
stdout: atty::is(atty::Stream::Stdout),
stderr: atty::is(atty::Stream::Stderr),
},
);
ok_buf(serialize_response(
base.cmd_id(),
builder,
msg::BaseArgs {
inner: Some(inner.as_union_value()),
inner_type: msg::Any::IsTTYRes,
..Default::default()
},
))
}
fn op_exit(
_state: &ThreadSafeState,
base: &msg::Base<'_>,
_data: Option<PinnedBuf>,
) -> CliOpResult {
let inner = base.inner_as_exit().unwrap();
std::process::exit(inner.code())
}
fn op_start(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let mut builder = FlatBufferBuilder::new();
let state = state;
let argv = state.argv.iter().map(String::as_str).collect::<Vec<_>>();
let argv_off = builder.create_vector_of_strings(argv.as_slice());
let cwd_path = std::env::current_dir().unwrap();
let cwd_off =
builder.create_string(deno_fs::normalize_path(cwd_path.as_ref()).as_ref());
// Use permissions.allows_env() to bypass env request prompt.
let exec_path = if state.permissions.allows_env() {
let current_exe = std::env::current_exe().unwrap();
// Now apply URL parser to current exe to get fully resolved path, otherwise we might get
// `./` and `../` bits in `exec_path`
let exe_url = Url::from_file_path(current_exe).unwrap();
exe_url.to_file_path().unwrap().to_str().unwrap().to_owned()
} else {
"".to_owned()
};
let exec_path = builder.create_string(&exec_path);
let v8_version = version::v8();
let v8_version_off = builder.create_string(v8_version);
let deno_version = version::DENO;
let deno_version_off = builder.create_string(deno_version);
let main_module = state
.main_module()
.map(|m| builder.create_string(&m.to_string()));
let xeval_delim = state
.flags
.xeval_delim
.clone()
.map(|m| builder.create_string(&m));
let debug_flag = state
.flags
.log_level
.map_or(false, |l| l == log::Level::Debug);
let inner = msg::StartRes::create(
&mut builder,
&msg::StartResArgs {
cwd: Some(cwd_off),
pid: std::process::id(),
argv: Some(argv_off),
main_module,
debug_flag,
version_flag: state.flags.version,
v8_version: Some(v8_version_off),
deno_version: Some(deno_version_off),
no_color: !ansi::use_color(),
exec_path: Some(exec_path),
xeval_delim,
..Default::default()
},
);
ok_buf(serialize_response(
base.cmd_id(),
&mut builder,
msg::BaseArgs {
inner_type: msg::Any::StartRes,
inner: Some(inner.as_union_value()),
..Default::default()
},
))
}
fn op_format_error(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let inner = base.inner_as_format_error().unwrap();
let json_str = inner.error().unwrap();
let error = JSError::from_json(json_str, &state.ts_compiler);
let error_string = error.to_string();
let mut builder = FlatBufferBuilder::new();
let new_error = builder.create_string(&error_string);
let inner = msg::FormatErrorRes::create(
&mut builder,
&msg::FormatErrorResArgs {
error: Some(new_error),
},
);
let response_buf = serialize_response(
base.cmd_id(),
&mut builder,
msg::BaseArgs {
inner_type: msg::Any::FormatErrorRes,
inner: Some(inner.as_union_value()),
..Default::default()
},
);
ok_buf(response_buf)
}
fn serialize_response(
cmd_id: u32,
builder: &mut FlatBufferBuilder<'_>,
mut args: msg::BaseArgs<'_>,
) -> Buf {
args.cmd_id = cmd_id;
let base = msg::Base::create(builder, &args);
msg::finish_base_buffer(builder, base);
let data = builder.finished_data();
// println!("serialize_response {:x?}", data);
data.into()
}
#[inline]
pub fn ok_future(buf: Buf) -> CliOpResult {
Ok(Op::Async(Box::new(futures::future::ok(buf))))
}
#[inline]
pub fn ok_buf(buf: Buf) -> CliOpResult {
Ok(Op::Sync(buf))
}
fn op_cache(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let inner = base.inner_as_cache().unwrap();
let extension = inner.extension().unwrap();
// TODO: rename to something with 'url'
let module_id = inner.module_id().unwrap();
let contents = inner.contents().unwrap();
let module_specifier = ModuleSpecifier::resolve_url(module_id)
.expect("Should be valid module specifier");
state.ts_compiler.cache_compiler_output(
&module_specifier,
extension,
contents,
)?;
ok_buf(empty_buf())
}
// https://github.com/denoland/deno/blob/golang/os.go#L100-L154
fn op_fetch_source_file(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
if !base.sync() {
return Err(deno_error::no_async_support());
}
assert!(data.is_none());
let inner = base.inner_as_fetch_source_file().unwrap();
let cmd_id = base.cmd_id();
let specifier = inner.specifier().unwrap();
let referrer = inner.referrer().unwrap();
let resolved_specifier = state.resolve(specifier, referrer, false)?;
let fut = state
.file_fetcher
.fetch_source_file_async(&resolved_specifier)
.and_then(move |out| {
let builder = &mut FlatBufferBuilder::new();
let data_off = builder.create_vector(out.source_code.as_slice());
let msg_args = msg::FetchSourceFileResArgs {
module_name: Some(builder.create_string(&out.url.to_string())),
filename: Some(builder.create_string(&out.filename.to_str().unwrap())),
media_type: out.media_type,
data: Some(data_off),
};
let inner = msg::FetchSourceFileRes::create(builder, &msg_args);
Ok(serialize_response(
cmd_id,
builder,
msg::BaseArgs {
inner: Some(inner.as_union_value()),
inner_type: msg::Any::FetchSourceFileRes,
..Default::default()
},
))
});
// WARNING: Here we use tokio_util::block_on() which starts a new Tokio
// runtime for executing the future. This is so we don't inadvernently run
// out of threads in the main runtime.
let result_buf = tokio_util::block_on(fut)?;
Ok(Op::Sync(result_buf))
}
fn op_apply_source_map(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
if !base.sync() {
return Err(deno_error::no_async_support());
}
assert!(data.is_none());
let inner = base.inner_as_apply_source_map().unwrap();
let cmd_id = base.cmd_id();
let filename = inner.filename().unwrap();
let line = inner.line();
let column = inner.column();
let mut mappings_map: CachedMaps = HashMap::new();
let (orig_filename, orig_line, orig_column) = get_orig_position(
filename.to_owned(),
line.into(),
column.into(),
&mut mappings_map,
&state.ts_compiler,
);
let builder = &mut FlatBufferBuilder::new();
let msg_args = msg::ApplySourceMapArgs {
filename: Some(builder.create_string(&orig_filename)),
line: orig_line as i32,
column: orig_column as i32,
};
let res_inner = msg::ApplySourceMap::create(builder, &msg_args);
ok_buf(serialize_response(
cmd_id,
builder,
msg::BaseArgs {
inner: Some(res_inner.as_union_value()),
inner_type: msg::Any::ApplySourceMap,
..Default::default()
},
))
}
fn op_chdir(
_state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let inner = base.inner_as_chdir().unwrap();
let directory = inner.directory().unwrap();
std::env::set_current_dir(&directory)?;
ok_buf(empty_buf())
}
fn op_global_timer_stop(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
if !base.sync() {
return Err(deno_error::no_async_support());
}
assert!(data.is_none());
let state = state;
let mut t = state.global_timer.lock().unwrap();
t.cancel();
Ok(Op::Sync(empty_buf()))
}
fn op_global_timer(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
if base.sync() {
return Err(deno_error::no_sync_support());
}
assert!(data.is_none());
let cmd_id = base.cmd_id();
let inner = base.inner_as_global_timer().unwrap();
let val = inner.timeout();
assert!(val >= 0);
let state = state;
let mut t = state.global_timer.lock().unwrap();
let deadline = Instant::now() + Duration::from_millis(val as u64);
let f = t.new_timeout(deadline);
Ok(Op::Async(Box::new(f.then(move |_| {
let builder = &mut FlatBufferBuilder::new();
let inner =
msg::GlobalTimerRes::create(builder, &msg::GlobalTimerResArgs {});
Ok(serialize_response(
cmd_id,
builder,
msg::BaseArgs {
inner: Some(inner.as_union_value()),
inner_type: msg::Any::GlobalTimerRes,
..Default::default()
},
))
}))))
}
fn op_set_env(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let inner = base.inner_as_set_env().unwrap();
let key = inner.key().unwrap();
let value = inner.value().unwrap();
state.check_env()?;
std::env::set_var(key, value);
ok_buf(empty_buf())
}
fn op_env(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let cmd_id = base.cmd_id();
state.check_env()?;
let builder = &mut FlatBufferBuilder::new();
let vars: Vec<_> = std::env::vars()
.map(|(key, value)| msg_util::serialize_key_value(builder, &key, &value))
.collect();
let tables = builder.create_vector(&vars);
let inner = msg::EnvironRes::create(
builder,
&msg::EnvironResArgs { map: Some(tables) },
);
let response_buf = serialize_response(
cmd_id,
builder,
msg::BaseArgs {
inner: Some(inner.as_union_value()),
inner_type: msg::Any::EnvironRes,
..Default::default()
},
);
ok_buf(response_buf)
}
fn op_permissions(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let cmd_id = base.cmd_id();
let builder = &mut FlatBufferBuilder::new();
let inner = msg::PermissionsRes::create(
builder,
&msg::PermissionsResArgs {
run: state.permissions.allows_run(),
read: state.permissions.allows_read(),
write: state.permissions.allows_write(),
net: state.permissions.allows_net(),
env: state.permissions.allows_env(),
hrtime: state.permissions.allows_hrtime(),
},
);
let response_buf = serialize_response(
cmd_id,
builder,
msg::BaseArgs {
inner: Some(inner.as_union_value()),
inner_type: msg::Any::PermissionsRes,
..Default::default()
},
);
ok_buf(response_buf)
}
fn op_revoke_permission(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let inner = base.inner_as_permission_revoke().unwrap();
let permission = inner.permission().unwrap();
match permission {
"run" => state.permissions.revoke_run(),
"read" => state.permissions.revoke_read(),
"write" => state.permissions.revoke_write(),
"net" => state.permissions.revoke_net(),
"env" => state.permissions.revoke_env(),
"hrtime" => state.permissions.revoke_hrtime(),
_ => Ok(()),
}?;
ok_buf(empty_buf())
}
fn op_fetch(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
let inner = base.inner_as_fetch().unwrap();
let cmd_id = base.cmd_id();
let header = inner.header().unwrap();
assert!(header.is_request());
let url = header.url().unwrap();
let body = match data {
None => hyper::Body::empty(),
Some(buf) => hyper::Body::from(Vec::from(&*buf)),
};
let req = msg_util::deserialize_request(header, body)?;
let url_ = url::Url::parse(url).map_err(ErrBox::from)?;
state.check_net_url(url_)?;
let client = http_util::get_client();
debug!("Before fetch {}", url);
let future = client
.request(req)
.map_err(ErrBox::from)
.and_then(move |res| {
let builder = &mut FlatBufferBuilder::new();
let header_off = msg_util::serialize_http_response(builder, &res);
let body = res.into_body();
let body_resource = resources::add_hyper_body(body);
let inner = msg::FetchRes::create(
builder,
&msg::FetchResArgs {
header: Some(header_off),
body_rid: body_resource.rid,
},
);
Ok(serialize_response(
cmd_id,
builder,
msg::BaseArgs {
inner: Some(inner.as_union_value()),
inner_type: msg::Any::FetchRes,
..Default::default()
},
))
});
if base.sync() {
let result_buf = future.wait()?;
Ok(Op::Sync(result_buf))
} else {
Ok(Op::Async(Box::new(future)))
}
}
// This is just type conversion. Implement From trait?
// See https://github.com/tokio-rs/tokio/blob/ffd73a64e7ec497622b7f939e38017afe7124dc4/tokio-fs/src/lib.rs#L76-L85
fn convert_blocking<F>(f: F) -> Poll<Buf, ErrBox>
where
F: FnOnce() -> Result<Buf, ErrBox>,
{
use futures::Async::*;
match tokio_threadpool::blocking(f) {
Ok(Ready(Ok(v))) => Ok(v.into()),
Ok(Ready(Err(err))) => Err(err),
Ok(NotReady) => Ok(NotReady),
Err(err) => panic!("blocking error {}", err),
}
}
fn blocking<F>(is_sync: bool, f: F) -> CliOpResult
where
F: 'static + Send + FnOnce() -> Result<Buf, ErrBox>,
{
if is_sync {
let result_buf = f()?;
Ok(Op::Sync(result_buf))
} else {
Ok(Op::Async(Box::new(futures::sync::oneshot::spawn(
tokio_util::poll_fn(move || convert_blocking(f)),
&tokio_executor::DefaultExecutor::current(),
))))
}
}
fn op_make_temp_dir(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let base = Box::new(*base);
let inner = base.inner_as_make_temp_dir().unwrap();
let cmd_id = base.cmd_id();
// FIXME
state.check_write("make_temp")?;
let dir = inner.dir().map(PathBuf::from);
let prefix = inner.prefix().map(String::from);
let suffix = inner.suffix().map(String::from);
blocking(base.sync(), move || {
// TODO(piscisaureus): use byte vector for paths, not a string.
// See https://github.com/denoland/deno/issues/627.
// We can't assume that paths are always valid utf8 strings.
let path = deno_fs::make_temp_dir(
// Converting Option<String> to Option<&str>
dir.as_ref().map(|x| &**x),
prefix.as_ref().map(|x| &**x),
suffix.as_ref().map(|x| &**x),
)?;
let builder = &mut FlatBufferBuilder::new();
let path_off = builder.create_string(path.to_str().unwrap());
let inner = msg::MakeTempDirRes::create(
builder,
&msg::MakeTempDirResArgs {
path: Some(path_off),
},
);
Ok(serialize_response(
cmd_id,
builder,
msg::BaseArgs {
inner: Some(inner.as_union_value()),
inner_type: msg::Any::MakeTempDirRes,
..Default::default()
},
))
})
}
fn op_mkdir(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let inner = base.inner_as_mkdir().unwrap();
let (path, path_) = deno_fs::resolve_from_cwd(inner.path().unwrap())?;
let recursive = inner.recursive();
let mode = inner.mode();
state.check_write(&path_)?;
blocking(base.sync(), move || {
debug!("op_mkdir {}", path_);
deno_fs::mkdir(&path, mode, recursive)?;
Ok(empty_buf())
})
}
fn op_chmod(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let inner = base.inner_as_chmod().unwrap();
let _mode = inner.mode();
let (path, path_) = deno_fs::resolve_from_cwd(inner.path().unwrap())?;
state.check_write(&path_)?;
blocking(base.sync(), move || {
debug!("op_chmod {}", &path_);
// Still check file/dir exists on windows
let _metadata = fs::metadata(&path)?;
#[cfg(any(unix))]
{
let mut permissions = _metadata.permissions();
permissions.set_mode(_mode);
fs::set_permissions(&path, permissions)?;
}
Ok(empty_buf())
})
}
fn op_chown(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let inner = base.inner_as_chown().unwrap();
let path = String::from(inner.path().unwrap());
let uid = inner.uid();
let gid = inner.gid();
state.check_write(&path)?;
blocking(base.sync(), move || {
debug!("op_chown {}", &path);
match deno_fs::chown(&path, uid, gid) {
Ok(_) => Ok(empty_buf()),
Err(e) => Err(e),
}
})
}
fn op_open(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let cmd_id = base.cmd_id();
let inner = base.inner_as_open().unwrap();
let (filename, filename_) =
deno_fs::resolve_from_cwd(inner.filename().unwrap())?;
let mode = inner.mode().unwrap();
let mut open_options = tokio::fs::OpenOptions::new();
match mode {
"r" => {
open_options.read(true);
}
"r+" => {
open_options.read(true).write(true);
}
"w" => {
open_options.create(true).write(true).truncate(true);
}
"w+" => {
open_options
.read(true)
.create(true)
.write(true)
.truncate(true);
}
"a" => {
open_options.create(true).append(true);
}
"a+" => {
open_options.read(true).create(true).append(true);
}
"x" => {
open_options.create_new(true).write(true);
}
"x+" => {
open_options.create_new(true).read(true).write(true);
}
&_ => {
panic!("Unknown file open mode.");
}
}
match mode {