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denoland-deno/runtime/ops/permissions.rs

134 lines
3.9 KiB
Rust

// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
use crate::permissions::Permissions;
use deno_core::error::custom_error;
use deno_core::error::uri_error;
use deno_core::error::AnyError;
use deno_core::op_sync;
use deno_core::url;
use deno_core::Extension;
use deno_core::OpState;
use serde::Deserialize;
use std::path::Path;
pub fn init() -> Extension {
Extension::builder()
.ops(vec![
("op_query_permission", op_sync(op_query_permission)),
("op_revoke_permission", op_sync(op_revoke_permission)),
("op_request_permission", op_sync(op_request_permission)),
])
.build()
}
#[derive(Deserialize)]
pub struct PermissionArgs {
name: String,
path: Option<String>,
host: Option<String>,
variable: Option<String>,
command: Option<String>,
}
pub fn op_query_permission(
state: &mut OpState,
args: PermissionArgs,
_: (),
) -> Result<String, AnyError> {
let permissions = state.borrow::<Permissions>();
let path = args.path.as_deref();
let perm = match args.name.as_ref() {
"read" => permissions.read.query(path.as_deref().map(Path::new)),
"write" => permissions.write.query(path.as_deref().map(Path::new)),
"net" => permissions.net.query(
match args.host.as_deref() {
None => None,
Some(h) => Some(parse_host(h)?),
}
.as_ref(),
),
"env" => permissions.env.query(args.variable.as_deref()),
"run" => permissions.run.query(args.command.as_deref()),
"plugin" => permissions.plugin.query(),
"hrtime" => permissions.hrtime.query(),
n => {
return Err(custom_error(
"ReferenceError",
format!("No such permission name: {}", n),
))
}
};
Ok(perm.to_string())
}
pub fn op_revoke_permission(
state: &mut OpState,
args: PermissionArgs,
_: (),
) -> Result<String, AnyError> {
let permissions = state.borrow_mut::<Permissions>();
let path = args.path.as_deref();
let perm = match args.name.as_ref() {
"read" => permissions.read.revoke(path.as_deref().map(Path::new)),
"write" => permissions.write.revoke(path.as_deref().map(Path::new)),
"net" => permissions.net.revoke(
match args.host.as_deref() {
None => None,
Some(h) => Some(parse_host(h)?),
}
.as_ref(),
),
"env" => permissions.env.revoke(args.variable.as_deref()),
"run" => permissions.run.revoke(args.command.as_deref()),
"plugin" => permissions.plugin.revoke(),
"hrtime" => permissions.hrtime.revoke(),
n => {
return Err(custom_error(
"ReferenceError",
format!("No such permission name: {}", n),
))
}
};
Ok(perm.to_string())
}
pub fn op_request_permission(
state: &mut OpState,
args: PermissionArgs,
_: (),
) -> Result<String, AnyError> {
let permissions = state.borrow_mut::<Permissions>();
let path = args.path.as_deref();
let perm = match args.name.as_ref() {
"read" => permissions.read.request(path.as_deref().map(Path::new)),
"write" => permissions.write.request(path.as_deref().map(Path::new)),
"net" => permissions.net.request(
match args.host.as_deref() {
None => None,
Some(h) => Some(parse_host(h)?),
}
.as_ref(),
),
"env" => permissions.env.request(args.variable.as_deref()),
"run" => permissions.run.request(args.command.as_deref()),
"plugin" => permissions.plugin.request(),
"hrtime" => permissions.hrtime.request(),
n => {
return Err(custom_error(
"ReferenceError",
format!("No such permission name: {}", n),
))
}
};
Ok(perm.to_string())
}
fn parse_host(host_str: &str) -> Result<(String, Option<u16>), AnyError> {
let url = url::Url::parse(&format!("http://{}/", host_str))
.map_err(|_| uri_error("Invalid host"))?;
if url.path() != "/" {
return Err(uri_error("Invalid host"));
}
let hostname = url.host_str().unwrap();
Ok((hostname.to_string(), url.port()))
}