// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.

use crate::colors;
use crate::fs_util::resolve_from_cwd;
use deno_core::error::custom_error;
use deno_core::error::uri_error;
use deno_core::error::AnyError;
#[cfg(test)]
use deno_core::parking_lot::Mutex;
use deno_core::serde::de;
use deno_core::serde::Deserialize;
use deno_core::serde::Deserializer;
use deno_core::serde::Serialize;
use deno_core::serde_json;
use deno_core::url;
use deno_core::ModuleSpecifier;
use deno_core::OpState;
use log;
use once_cell::sync::Lazy;
use std::collections::HashSet;
use std::fmt;
use std::hash::Hash;
use std::path::{Path, PathBuf};
use std::str::FromStr;
use std::string::ToString;
#[cfg(test)]
use std::sync::atomic::AtomicBool;
#[cfg(test)]
use std::sync::atomic::Ordering;

const PERMISSION_EMOJI: &str = "⚠️";

static DEBUG_LOG_ENABLED: Lazy<bool> = Lazy::new(|| log::log_enabled!(log::Level::Debug));

/// Tri-state value for storing permission state
#[derive(PartialEq, Debug, Clone, Copy, Deserialize, PartialOrd)]
pub enum PermissionState {
    Granted = 0,
    Prompt = 1,
    Denied = 2,
}

impl PermissionState {
    #[inline(always)]
    fn log_perm_access(name: &str, info: Option<&str>) {
        // Eliminates log overhead (when logging is disabled),
        // log_enabled!(Debug) check in a hot path still has overhead
        // TODO(AaronO): generalize or upstream this optimization
        if *DEBUG_LOG_ENABLED {
            log::debug!(
                "{}",
                colors::bold(&format!(
                    "{}️  Granted {}",
                    PERMISSION_EMOJI,
                    Self::fmt_access(name, info)
                ))
            );
        }
    }

    fn fmt_access(name: &str, info: Option<&str>) -> String {
        format!(
            "{} access{}",
            name,
            info.map_or(String::new(), |info| { format!(" to {}", info) }),
        )
    }

    fn error(name: &str, info: Option<&str>) -> AnyError {
        custom_error(
            "PermissionDenied",
            format!(
                "Requires {}, run again with the --allow-{} flag",
                Self::fmt_access(name, info),
                name
            ),
        )
    }

    /// Check the permission state. bool is whether a prompt was issued.
    fn check(self, name: &str, info: Option<&str>, prompt: bool) -> (Result<(), AnyError>, bool) {
        match self {
            PermissionState::Granted => {
                Self::log_perm_access(name, info);
                (Ok(()), false)
            }
            PermissionState::Prompt if prompt => {
                let msg = Self::fmt_access(name, info);
                if permission_prompt(&msg, name) {
                    Self::log_perm_access(name, info);
                    (Ok(()), true)
                } else {
                    (Err(Self::error(name, info)), true)
                }
            }
            _ => (Err(Self::error(name, info)), false),
        }
    }
}

impl fmt::Display for PermissionState {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match self {
            PermissionState::Granted => f.pad("granted"),
            PermissionState::Prompt => f.pad("prompt"),
            PermissionState::Denied => f.pad("denied"),
        }
    }
}

impl Default for PermissionState {
    fn default() -> Self {
        PermissionState::Prompt
    }
}

#[derive(Clone, Debug, PartialEq)]
pub struct UnitPermission {
    pub name: &'static str,
    pub description: &'static str,
    pub state: PermissionState,
    pub prompt: bool,
}

impl UnitPermission {
    pub fn query(&self) -> PermissionState {
        self.state
    }

    pub fn request(&mut self) -> PermissionState {
        if self.state == PermissionState::Prompt {
            if permission_prompt(&format!("access to {}", self.description), self.name) {
                self.state = PermissionState::Granted;
            } else {
                self.state = PermissionState::Denied;
            }
        }
        self.state
    }

    pub fn revoke(&mut self) -> PermissionState {
        if self.state == PermissionState::Granted {
            self.state = PermissionState::Prompt;
        }
        self.state
    }

    pub fn check(&mut self) -> Result<(), AnyError> {
        let (result, prompted) = self.state.check(self.name, None, self.prompt);
        if prompted {
            if result.is_ok() {
                self.state = PermissionState::Granted;
            } else {
                self.state = PermissionState::Denied;
            }
        }
        result
    }
}

/// A normalized environment variable name. On Windows this will
/// be uppercase and on other platforms it will stay as-is.
#[derive(Clone, Eq, PartialEq, Hash, Debug)]
struct EnvVarName {
    inner: String,
}

impl EnvVarName {
    pub fn new(env: impl AsRef<str>) -> Self {
        Self {
            inner: if cfg!(windows) {
                env.as_ref().to_uppercase()
            } else {
                env.as_ref().to_string()
            },
        }
    }
}

impl AsRef<str> for EnvVarName {
    fn as_ref(&self) -> &str {
        self.inner.as_str()
    }
}

#[derive(Clone, Debug, PartialEq)]
pub struct UnaryPermission<T: Eq + Hash> {
    pub name: &'static str,
    pub description: &'static str,
    pub global_state: PermissionState,
    pub granted_list: HashSet<T>,
    pub denied_list: HashSet<T>,
    pub prompt: bool,
}

#[derive(Clone, Eq, PartialEq, Hash, Debug)]
pub struct ReadDescriptor(pub PathBuf);

#[derive(Clone, Eq, PartialEq, Hash, Debug)]
pub struct WriteDescriptor(pub PathBuf);

#[derive(Clone, Eq, PartialEq, Hash, Debug)]
pub struct NetDescriptor(pub String, pub Option<u16>);

impl NetDescriptor {
    fn new<T: AsRef<str>>(host: &&(T, Option<u16>)) -> Self {
        NetDescriptor(host.0.as_ref().to_string(), host.1)
    }
}

impl FromStr for NetDescriptor {
    type Err = AnyError;

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        let url = url::Url::parse(&format!("http://{s}"))?;
        let hostname = url.host_str().unwrap().to_string();

        Ok(NetDescriptor(hostname, url.port()))
    }
}

impl fmt::Display for NetDescriptor {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        f.write_str(&match self.1 {
            None => self.0.clone(),
            Some(port) => format!("{}:{}", self.0, port),
        })
    }
}

#[derive(Clone, Eq, PartialEq, Hash, Debug)]
pub struct EnvDescriptor(EnvVarName);

impl EnvDescriptor {
    pub fn new(env: impl AsRef<str>) -> Self {
        Self(EnvVarName::new(env))
    }
}

impl AsRef<str> for EnvDescriptor {
    fn as_ref(&self) -> &str {
        self.0.as_ref()
    }
}

#[derive(Clone, Eq, PartialEq, Hash, Debug)]
pub enum RunDescriptor {
    Name(String),
    Path(PathBuf),
}

impl FromStr for RunDescriptor {
    type Err = ();

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        let is_path = s.contains('/');
        #[cfg(windows)]
        let is_path = is_path || s.contains('\\') || Path::new(s).is_absolute();
        if is_path {
            Ok(Self::Path(resolve_from_cwd(Path::new(s)).unwrap()))
        } else {
            Ok(Self::Name(s.to_string()))
        }
    }
}

impl ToString for RunDescriptor {
    fn to_string(&self) -> String {
        match self {
            RunDescriptor::Name(s) => s.clone(),
            RunDescriptor::Path(p) => p.to_string_lossy().to_string(),
        }
    }
}

#[derive(Clone, Eq, PartialEq, Hash, Debug)]
pub struct FfiDescriptor(pub PathBuf);

impl UnaryPermission<ReadDescriptor> {
    pub fn query(&self, path: Option<&Path>) -> PermissionState {
        let path = path.map(|p| resolve_from_cwd(p).unwrap());
        if self.global_state == PermissionState::Denied
            && match path.as_ref() {
                None => true,
                Some(path) => self
                    .denied_list
                    .iter()
                    .any(|path_| path_.0.starts_with(path)),
            }
        {
            PermissionState::Denied
        } else if self.global_state == PermissionState::Granted
            || match path.as_ref() {
                None => false,
                Some(path) => self
                    .granted_list
                    .iter()
                    .any(|path_| path.starts_with(&path_.0)),
            }
        {
            PermissionState::Granted
        } else {
            PermissionState::Prompt
        }
    }

    pub fn request(&mut self, path: Option<&Path>) -> PermissionState {
        if let Some(path) = path {
            let (resolved_path, display_path) = resolved_and_display_path(path);
            let state = self.query(Some(&resolved_path));
            if state == PermissionState::Prompt {
                if permission_prompt(
                    &format!("read access to \"{}\"", display_path.display()),
                    self.name,
                ) {
                    self.granted_list.insert(ReadDescriptor(resolved_path));
                    PermissionState::Granted
                } else {
                    self.denied_list.insert(ReadDescriptor(resolved_path));
                    self.global_state = PermissionState::Denied;
                    PermissionState::Denied
                }
            } else if state == PermissionState::Granted {
                self.granted_list.insert(ReadDescriptor(resolved_path));
                PermissionState::Granted
            } else {
                state
            }
        } else {
            let state = self.query(None);
            if state == PermissionState::Prompt {
                if permission_prompt("read access", self.name) {
                    self.granted_list.clear();
                    self.global_state = PermissionState::Granted;
                    PermissionState::Granted
                } else {
                    self.global_state = PermissionState::Denied;
                    PermissionState::Denied
                }
            } else {
                state
            }
        }
    }

    pub fn revoke(&mut self, path: Option<&Path>) -> PermissionState {
        if let Some(path) = path {
            let path = resolve_from_cwd(path).unwrap();
            self.granted_list
                .retain(|path_| !path.starts_with(&path_.0));
        } else {
            self.granted_list.clear();
        }
        if self.global_state == PermissionState::Granted {
            self.global_state = PermissionState::Prompt;
        }
        self.query(path)
    }

    pub fn check(&mut self, path: &Path) -> Result<(), AnyError> {
        let (resolved_path, display_path) = resolved_and_display_path(path);
        let (result, prompted) = self.query(Some(&resolved_path)).check(
            self.name,
            Some(&format!("\"{}\"", display_path.display())),
            self.prompt,
        );
        if prompted {
            if result.is_ok() {
                self.granted_list.insert(ReadDescriptor(resolved_path));
            } else {
                self.denied_list.insert(ReadDescriptor(resolved_path));
                self.global_state = PermissionState::Denied;
            }
        }
        result
    }

    /// As `check()`, but permission error messages will anonymize the path
    /// by replacing it with the given `display`.
    pub fn check_blind(&mut self, path: &Path, display: &str) -> Result<(), AnyError> {
        let resolved_path = resolve_from_cwd(path).unwrap();
        let (result, prompted) = self.query(Some(&resolved_path)).check(
            self.name,
            Some(&format!("<{}>", display)),
            self.prompt,
        );
        if prompted {
            if result.is_ok() {
                self.granted_list.insert(ReadDescriptor(resolved_path));
            } else {
                self.denied_list.insert(ReadDescriptor(resolved_path));
                self.global_state = PermissionState::Denied;
            }
        }
        result
    }

    pub fn check_all(&mut self) -> Result<(), AnyError> {
        let (result, prompted) = self.query(None).check(self.name, Some("all"), self.prompt);
        if prompted {
            if result.is_ok() {
                self.global_state = PermissionState::Granted;
            } else {
                self.global_state = PermissionState::Denied;
            }
        }
        result
    }
}

impl Default for UnaryPermission<ReadDescriptor> {
    fn default() -> Self {
        UnaryPermission::<ReadDescriptor> {
            name: "read",
            description: "read the file system",
            global_state: Default::default(),
            granted_list: Default::default(),
            denied_list: Default::default(),
            prompt: false,
        }
    }
}

impl UnaryPermission<WriteDescriptor> {
    pub fn query(&self, path: Option<&Path>) -> PermissionState {
        let path = path.map(|p| resolve_from_cwd(p).unwrap());
        if self.global_state == PermissionState::Denied
            && match path.as_ref() {
                None => true,
                Some(path) => self
                    .denied_list
                    .iter()
                    .any(|path_| path_.0.starts_with(path)),
            }
        {
            PermissionState::Denied
        } else if self.global_state == PermissionState::Granted
            || match path.as_ref() {
                None => false,
                Some(path) => self
                    .granted_list
                    .iter()
                    .any(|path_| path.starts_with(&path_.0)),
            }
        {
            PermissionState::Granted
        } else {
            PermissionState::Prompt
        }
    }

    pub fn request(&mut self, path: Option<&Path>) -> PermissionState {
        if let Some(path) = path {
            let (resolved_path, display_path) = resolved_and_display_path(path);
            let state = self.query(Some(&resolved_path));
            if state == PermissionState::Prompt {
                if permission_prompt(
                    &format!("write access to \"{}\"", display_path.display()),
                    self.name,
                ) {
                    self.granted_list.insert(WriteDescriptor(resolved_path));
                    PermissionState::Granted
                } else {
                    self.denied_list.insert(WriteDescriptor(resolved_path));
                    self.global_state = PermissionState::Denied;
                    PermissionState::Denied
                }
            } else if state == PermissionState::Granted {
                self.granted_list.insert(WriteDescriptor(resolved_path));
                PermissionState::Granted
            } else {
                state
            }
        } else {
            let state = self.query(None);
            if state == PermissionState::Prompt {
                if permission_prompt("write access", self.name) {
                    self.granted_list.clear();
                    self.global_state = PermissionState::Granted;
                    PermissionState::Granted
                } else {
                    self.global_state = PermissionState::Denied;
                    PermissionState::Denied
                }
            } else {
                state
            }
        }
    }

    pub fn revoke(&mut self, path: Option<&Path>) -> PermissionState {
        if let Some(path) = path {
            let path = resolve_from_cwd(path).unwrap();
            self.granted_list
                .retain(|path_| !path.starts_with(&path_.0));
        } else {
            self.granted_list.clear();
        }
        if self.global_state == PermissionState::Granted {
            self.global_state = PermissionState::Prompt;
        }
        self.query(path)
    }

    pub fn check(&mut self, path: &Path) -> Result<(), AnyError> {
        let (resolved_path, display_path) = resolved_and_display_path(path);
        let (result, prompted) = self.query(Some(&resolved_path)).check(
            self.name,
            Some(&format!("\"{}\"", display_path.display())),
            self.prompt,
        );
        if prompted {
            if result.is_ok() {
                self.granted_list.insert(WriteDescriptor(resolved_path));
            } else {
                self.denied_list.insert(WriteDescriptor(resolved_path));
                self.global_state = PermissionState::Denied;
            }
        }
        result
    }

    pub fn check_all(&mut self) -> Result<(), AnyError> {
        let (result, prompted) = self.query(None).check(self.name, Some("all"), self.prompt);
        if prompted {
            if result.is_ok() {
                self.global_state = PermissionState::Granted;
            } else {
                self.global_state = PermissionState::Denied;
            }
        }
        result
    }
}

impl Default for UnaryPermission<WriteDescriptor> {
    fn default() -> Self {
        UnaryPermission::<WriteDescriptor> {
            name: "write",
            description: "write to the file system",
            global_state: Default::default(),
            granted_list: Default::default(),
            denied_list: Default::default(),
            prompt: false,
        }
    }
}

impl UnaryPermission<NetDescriptor> {
    pub fn query<T: AsRef<str>>(&self, host: Option<&(T, Option<u16>)>) -> PermissionState {
        if self.global_state == PermissionState::Denied
            && match host.as_ref() {
                None => true,
                Some(host) => match host.1 {
                    None => self
                        .denied_list
                        .iter()
                        .any(|host_| host.0.as_ref() == host_.0),
                    Some(_) => self.denied_list.contains(&NetDescriptor::new(host)),
                },
            }
        {
            PermissionState::Denied
        } else if self.global_state == PermissionState::Granted
            || match host.as_ref() {
                None => false,
                Some(host) => {
                    self.granted_list
                        .contains(&NetDescriptor::new(&&(host.0.as_ref().to_string(), None)))
                        || self.granted_list.contains(&NetDescriptor::new(host))
                }
            }
        {
            PermissionState::Granted
        } else {
            PermissionState::Prompt
        }
    }

    pub fn request<T: AsRef<str>>(&mut self, host: Option<&(T, Option<u16>)>) -> PermissionState {
        if let Some(host) = host {
            let state = self.query(Some(host));
            let host = NetDescriptor::new(&host);
            if state == PermissionState::Prompt {
                if permission_prompt(&format!("network access to \"{}\"", host), self.name) {
                    self.granted_list.insert(host);
                    PermissionState::Granted
                } else {
                    self.denied_list.insert(host);
                    self.global_state = PermissionState::Denied;
                    PermissionState::Denied
                }
            } else if state == PermissionState::Granted {
                self.granted_list.insert(host);
                PermissionState::Granted
            } else {
                state
            }
        } else {
            let state = self.query::<&str>(None);
            if state == PermissionState::Prompt {
                if permission_prompt("network access", self.name) {
                    self.granted_list.clear();
                    self.global_state = PermissionState::Granted;
                    PermissionState::Granted
                } else {
                    self.global_state = PermissionState::Denied;
                    PermissionState::Denied
                }
            } else {
                state
            }
        }
    }

    pub fn revoke<T: AsRef<str>>(&mut self, host: Option<&(T, Option<u16>)>) -> PermissionState {
        if let Some(host) = host {
            if host.1.is_some() {
                self.granted_list
                    .remove(&NetDescriptor(host.0.as_ref().to_string(), host.1));
            }
            self.granted_list
                .remove(&NetDescriptor(host.0.as_ref().to_string(), None));
        } else {
            self.granted_list.clear();
        }
        if self.global_state == PermissionState::Granted {
            self.global_state = PermissionState::Prompt;
        }
        self.query(host)
    }

    pub fn check<T: AsRef<str>>(&mut self, host: &(T, Option<u16>)) -> Result<(), AnyError> {
        let new_host = NetDescriptor::new(&host);
        let (result, prompted) = self.query(Some(host)).check(
            self.name,
            Some(&format!("\"{}\"", new_host)),
            self.prompt,
        );
        if prompted {
            if result.is_ok() {
                self.granted_list.insert(new_host);
            } else {
                self.denied_list.insert(new_host);
                self.global_state = PermissionState::Denied;
            }
        }
        result
    }

    pub fn check_url(&mut self, url: &url::Url) -> Result<(), AnyError> {
        let hostname = url
            .host_str()
            .ok_or_else(|| uri_error("Missing host"))?
            .to_string();
        let display_host = match url.port() {
            None => hostname.clone(),
            Some(port) => format!("{}:{}", hostname, port),
        };
        let host = &(&hostname, url.port_or_known_default());
        let (result, prompted) = self.query(Some(host)).check(
            self.name,
            Some(&format!("\"{}\"", display_host)),
            self.prompt,
        );
        if prompted {
            if result.is_ok() {
                self.granted_list.insert(NetDescriptor::new(&host));
            } else {
                self.denied_list.insert(NetDescriptor::new(&host));
                self.global_state = PermissionState::Denied;
            }
        }
        result
    }

    pub fn check_all(&mut self) -> Result<(), AnyError> {
        let (result, prompted) =
            self.query::<&str>(None)
                .check(self.name, Some("all"), self.prompt);
        if prompted {
            if result.is_ok() {
                self.global_state = PermissionState::Granted;
            } else {
                self.global_state = PermissionState::Denied;
            }
        }
        result
    }
}

impl Default for UnaryPermission<NetDescriptor> {
    fn default() -> Self {
        UnaryPermission::<NetDescriptor> {
            name: "net",
            description: "network",
            global_state: Default::default(),
            granted_list: Default::default(),
            denied_list: Default::default(),
            prompt: false,
        }
    }
}

impl UnaryPermission<EnvDescriptor> {
    pub fn query(&self, env: Option<&str>) -> PermissionState {
        let env = env.map(EnvVarName::new);
        if self.global_state == PermissionState::Denied
            && match env.as_ref() {
                None => true,
                Some(env) => self.denied_list.contains(&EnvDescriptor::new(env)),
            }
        {
            PermissionState::Denied
        } else if self.global_state == PermissionState::Granted
            || match env.as_ref() {
                None => false,
                Some(env) => self.granted_list.contains(&EnvDescriptor::new(env)),
            }
        {
            PermissionState::Granted
        } else {
            PermissionState::Prompt
        }
    }

    pub fn request(&mut self, env: Option<&str>) -> PermissionState {
        if let Some(env) = env {
            let state = self.query(Some(env));
            if state == PermissionState::Prompt {
                if permission_prompt(&format!("env access to \"{}\"", env), self.name) {
                    self.granted_list.insert(EnvDescriptor::new(env));
                    PermissionState::Granted
                } else {
                    self.denied_list.insert(EnvDescriptor::new(env));
                    self.global_state = PermissionState::Denied;
                    PermissionState::Denied
                }
            } else if state == PermissionState::Granted {
                self.granted_list.insert(EnvDescriptor::new(env));
                PermissionState::Granted
            } else {
                state
            }
        } else {
            let state = self.query(None);
            if state == PermissionState::Prompt {
                if permission_prompt("env access", self.name) {
                    self.granted_list.clear();
                    self.global_state = PermissionState::Granted;
                    PermissionState::Granted
                } else {
                    self.global_state = PermissionState::Denied;
                    PermissionState::Denied
                }
            } else {
                state
            }
        }
    }

    pub fn revoke(&mut self, env: Option<&str>) -> PermissionState {
        if let Some(env) = env {
            self.granted_list.remove(&EnvDescriptor::new(env));
        } else {
            self.granted_list.clear();
        }
        if self.global_state == PermissionState::Granted {
            self.global_state = PermissionState::Prompt;
        }
        self.query(env)
    }

    pub fn check(&mut self, env: &str) -> Result<(), AnyError> {
        let (result, prompted) =
            self.query(Some(env))
                .check(self.name, Some(&format!("\"{}\"", env)), self.prompt);
        if prompted {
            if result.is_ok() {
                self.granted_list.insert(EnvDescriptor::new(env));
            } else {
                self.denied_list.insert(EnvDescriptor::new(env));
                self.global_state = PermissionState::Denied;
            }
        }
        result
    }

    pub fn check_all(&mut self) -> Result<(), AnyError> {
        let (result, prompted) = self.query(None).check(self.name, Some("all"), self.prompt);
        if prompted {
            if result.is_ok() {
                self.global_state = PermissionState::Granted;
            } else {
                self.global_state = PermissionState::Denied;
            }
        }
        result
    }
}

impl Default for UnaryPermission<EnvDescriptor> {
    fn default() -> Self {
        UnaryPermission::<EnvDescriptor> {
            name: "env",
            description: "environment variables",
            global_state: Default::default(),
            granted_list: Default::default(),
            denied_list: Default::default(),
            prompt: false,
        }
    }
}

impl UnaryPermission<RunDescriptor> {
    pub fn query(&self, cmd: Option<&str>) -> PermissionState {
        if self.global_state == PermissionState::Denied
            && match cmd {
                None => true,
                Some(cmd) => self
                    .denied_list
                    .contains(&RunDescriptor::from_str(cmd).unwrap()),
            }
        {
            PermissionState::Denied
        } else if self.global_state == PermissionState::Granted
            || match cmd {
                None => false,
                Some(cmd) => self
                    .granted_list
                    .contains(&RunDescriptor::from_str(cmd).unwrap()),
            }
        {
            PermissionState::Granted
        } else {
            PermissionState::Prompt
        }
    }

    pub fn request(&mut self, cmd: Option<&str>) -> PermissionState {
        if let Some(cmd) = cmd {
            let state = self.query(Some(cmd));
            if state == PermissionState::Prompt {
                if permission_prompt(&format!("run access to \"{}\"", cmd), self.name) {
                    self.granted_list
                        .insert(RunDescriptor::from_str(cmd).unwrap());
                    PermissionState::Granted
                } else {
                    self.denied_list
                        .insert(RunDescriptor::from_str(cmd).unwrap());
                    self.global_state = PermissionState::Denied;
                    PermissionState::Denied
                }
            } else if state == PermissionState::Granted {
                self.granted_list
                    .insert(RunDescriptor::from_str(cmd).unwrap());
                PermissionState::Granted
            } else {
                state
            }
        } else {
            let state = self.query(None);
            if state == PermissionState::Prompt {
                if permission_prompt("run access", self.name) {
                    self.granted_list.clear();
                    self.global_state = PermissionState::Granted;
                    PermissionState::Granted
                } else {
                    self.global_state = PermissionState::Denied;
                    PermissionState::Denied
                }
            } else {
                state
            }
        }
    }

    pub fn revoke(&mut self, cmd: Option<&str>) -> PermissionState {
        if let Some(cmd) = cmd {
            self.granted_list
                .remove(&RunDescriptor::from_str(cmd).unwrap());
        } else {
            self.granted_list.clear();
        }
        if self.global_state == PermissionState::Granted {
            self.global_state = PermissionState::Prompt;
        }
        self.query(cmd)
    }

    pub fn check(&mut self, cmd: &str) -> Result<(), AnyError> {
        let (result, prompted) =
            self.query(Some(cmd))
                .check(self.name, Some(&format!("\"{}\"", cmd)), self.prompt);
        if prompted {
            if result.is_ok() {
                self.granted_list
                    .insert(RunDescriptor::from_str(cmd).unwrap());
            } else {
                self.denied_list
                    .insert(RunDescriptor::from_str(cmd).unwrap());
                self.global_state = PermissionState::Denied;
            }
        }
        result
    }

    pub fn check_all(&mut self) -> Result<(), AnyError> {
        let (result, prompted) = self.query(None).check(self.name, Some("all"), self.prompt);
        if prompted {
            if result.is_ok() {
                self.global_state = PermissionState::Granted;
            } else {
                self.global_state = PermissionState::Denied;
            }
        }
        result
    }
}

impl Default for UnaryPermission<RunDescriptor> {
    fn default() -> Self {
        UnaryPermission::<RunDescriptor> {
            name: "run",
            description: "run a subprocess",
            global_state: Default::default(),
            granted_list: Default::default(),
            denied_list: Default::default(),
            prompt: false,
        }
    }
}

impl UnaryPermission<FfiDescriptor> {
    pub fn query(&self, path: Option<&Path>) -> PermissionState {
        let path = path.map(|p| resolve_from_cwd(p).unwrap());
        if self.global_state == PermissionState::Denied
            && match path.as_ref() {
                None => true,
                Some(path) => self.denied_list.contains(&FfiDescriptor(path.clone())),
            }
        {
            PermissionState::Denied
        } else if self.global_state == PermissionState::Granted
            || match path.as_ref() {
                None => false,
                Some(path) => self.granted_list.contains(&FfiDescriptor(path.clone())),
            }
        {
            PermissionState::Granted
        } else {
            PermissionState::Prompt
        }
    }

    pub fn request(&mut self, path: Option<&Path>) -> PermissionState {
        if let Some(path) = path {
            let (resolved_path, display_path) = resolved_and_display_path(path);
            let state = self.query(Some(&resolved_path));
            if state == PermissionState::Prompt {
                if permission_prompt(
                    &format!("ffi access to \"{}\"", display_path.display()),
                    self.name,
                ) {
                    self.granted_list.insert(FfiDescriptor(resolved_path));
                    PermissionState::Granted
                } else {
                    self.denied_list.insert(FfiDescriptor(resolved_path));
                    self.global_state = PermissionState::Denied;
                    PermissionState::Denied
                }
            } else if state == PermissionState::Granted {
                self.granted_list.insert(FfiDescriptor(resolved_path));
                PermissionState::Granted
            } else {
                state
            }
        } else {
            let state = self.query(None);
            if state == PermissionState::Prompt {
                if permission_prompt("ffi access", self.name) {
                    self.granted_list.clear();
                    self.global_state = PermissionState::Granted;
                    PermissionState::Granted
                } else {
                    self.global_state = PermissionState::Denied;
                    PermissionState::Denied
                }
            } else {
                state
            }
        }
    }

    pub fn revoke(&mut self, path: Option<&Path>) -> PermissionState {
        if let Some(path) = path {
            let path = resolve_from_cwd(path).unwrap();
            self.granted_list.remove(&FfiDescriptor(path));
        } else {
            self.granted_list.clear();
        }
        if self.global_state == PermissionState::Granted {
            self.global_state = PermissionState::Prompt;
        }
        self.query(path)
    }

    pub fn check(&mut self, path: Option<&Path>) -> Result<(), AnyError> {
        if let Some(path) = path {
            let (resolved_path, display_path) = resolved_and_display_path(path);
            let (result, prompted) = self.query(Some(&resolved_path)).check(
                self.name,
                Some(&format!("\"{}\"", display_path.display())),
                self.prompt,
            );

            if prompted {
                if result.is_ok() {
                    self.granted_list.insert(FfiDescriptor(resolved_path));
                } else {
                    self.denied_list.insert(FfiDescriptor(resolved_path));
                    self.global_state = PermissionState::Denied;
                }
            }

            result
        } else {
            let (result, prompted) = self.query(None).check(self.name, None, self.prompt);

            if prompted {
                if result.is_ok() {
                    self.global_state = PermissionState::Granted;
                } else {
                    self.global_state = PermissionState::Denied;
                }
            }

            result
        }
    }

    pub fn check_all(&mut self) -> Result<(), AnyError> {
        let (result, prompted) = self.query(None).check(self.name, Some("all"), self.prompt);
        if prompted {
            if result.is_ok() {
                self.global_state = PermissionState::Granted;
            } else {
                self.global_state = PermissionState::Denied;
            }
        }
        result
    }
}

impl Default for UnaryPermission<FfiDescriptor> {
    fn default() -> Self {
        UnaryPermission::<FfiDescriptor> {
            name: "ffi",
            description: "load a dynamic library",
            global_state: Default::default(),
            granted_list: Default::default(),
            denied_list: Default::default(),
            prompt: false,
        }
    }
}

#[derive(Clone, Debug, PartialEq)]
pub struct Permissions {
    pub read: UnaryPermission<ReadDescriptor>,
    pub write: UnaryPermission<WriteDescriptor>,
    pub net: UnaryPermission<NetDescriptor>,
    pub env: UnaryPermission<EnvDescriptor>,
    pub run: UnaryPermission<RunDescriptor>,
    pub ffi: UnaryPermission<FfiDescriptor>,
    pub hrtime: UnitPermission,
}

impl Default for Permissions {
    fn default() -> Self {
        Self {
            read: Permissions::new_read(&None, false).unwrap(),
            write: Permissions::new_write(&None, false).unwrap(),
            net: Permissions::new_net(&None, false).unwrap(),
            env: Permissions::new_env(&None, false).unwrap(),
            run: Permissions::new_run(&None, false).unwrap(),
            ffi: Permissions::new_ffi(&None, false).unwrap(),
            hrtime: Permissions::new_hrtime(false),
        }
    }
}

#[derive(Clone, Debug, PartialEq, Default, Serialize, Deserialize)]
pub struct PermissionsOptions {
    pub allow_env: Option<Vec<String>>,
    pub allow_hrtime: bool,
    pub allow_net: Option<Vec<String>>,
    pub allow_ffi: Option<Vec<PathBuf>>,
    pub allow_read: Option<Vec<PathBuf>>,
    pub allow_run: Option<Vec<String>>,
    pub allow_write: Option<Vec<PathBuf>>,
    pub prompt: bool,
}

impl Permissions {
    pub fn new_read(
        state: &Option<Vec<PathBuf>>,
        prompt: bool,
    ) -> Result<UnaryPermission<ReadDescriptor>, AnyError> {
        Ok(UnaryPermission::<ReadDescriptor> {
            global_state: global_state_from_option(state),
            granted_list: resolve_read_allowlist(state)?,
            prompt,
            ..Default::default()
        })
    }

    pub fn new_write(
        state: &Option<Vec<PathBuf>>,
        prompt: bool,
    ) -> Result<UnaryPermission<WriteDescriptor>, AnyError> {
        Ok(UnaryPermission::<WriteDescriptor> {
            global_state: global_state_from_option(state),
            granted_list: resolve_write_allowlist(state)?,
            prompt,
            ..Default::default()
        })
    }

    pub fn new_net(
        state: &Option<Vec<String>>,
        prompt: bool,
    ) -> Result<UnaryPermission<NetDescriptor>, AnyError> {
        Ok(UnaryPermission::<NetDescriptor> {
            global_state: global_state_from_option(state),
            granted_list: state.as_ref().map_or_else(
                || Ok(HashSet::new()),
                |v| {
                    v.iter()
                        .map(|x| NetDescriptor::from_str(x))
                        .collect::<Result<HashSet<NetDescriptor>, AnyError>>()
                },
            )?,
            prompt,
            ..Default::default()
        })
    }

    pub fn new_env(
        state: &Option<Vec<String>>,
        prompt: bool,
    ) -> Result<UnaryPermission<EnvDescriptor>, AnyError> {
        Ok(UnaryPermission::<EnvDescriptor> {
            global_state: global_state_from_option(state),
            granted_list: state.as_ref().map_or_else(
                || Ok(HashSet::new()),
                |v| {
                    v.iter()
                        .map(|x| {
                            if x.is_empty() {
                                Err(AnyError::msg("Empty path is not allowed"))
                            } else {
                                Ok(EnvDescriptor::new(x))
                            }
                        })
                        .collect()
                },
            )?,
            prompt,
            ..Default::default()
        })
    }

    pub fn new_run(
        state: &Option<Vec<String>>,
        prompt: bool,
    ) -> Result<UnaryPermission<RunDescriptor>, AnyError> {
        Ok(UnaryPermission::<RunDescriptor> {
            global_state: global_state_from_option(state),
            granted_list: state.as_ref().map_or_else(
                || Ok(HashSet::new()),
                |v| {
                    v.iter()
                        .map(|x| {
                            if x.is_empty() {
                                Err(AnyError::msg("Empty path is not allowed"))
                            } else {
                                Ok(RunDescriptor::from_str(x).unwrap())
                            }
                        })
                        .collect()
                },
            )?,
            prompt,
            ..Default::default()
        })
    }

    pub fn new_ffi(
        state: &Option<Vec<PathBuf>>,
        prompt: bool,
    ) -> Result<UnaryPermission<FfiDescriptor>, AnyError> {
        Ok(UnaryPermission::<FfiDescriptor> {
            global_state: global_state_from_option(state),
            granted_list: resolve_ffi_allowlist(state)?,
            prompt,
            ..Default::default()
        })
    }

    pub fn new_hrtime(state: bool) -> UnitPermission {
        unit_permission_from_flag_bool(
            state,
            "hrtime",
            "high precision time",
            false, // never prompt for hrtime
        )
    }

    pub fn from_options(opts: &PermissionsOptions) -> Result<Self, AnyError> {
        Ok(Self {
            read: Permissions::new_read(&opts.allow_read, opts.prompt)?,
            write: Permissions::new_write(&opts.allow_write, opts.prompt)?,
            net: Permissions::new_net(&opts.allow_net, opts.prompt)?,
            env: Permissions::new_env(&opts.allow_env, opts.prompt)?,
            run: Permissions::new_run(&opts.allow_run, opts.prompt)?,
            ffi: Permissions::new_ffi(&opts.allow_ffi, opts.prompt)?,
            hrtime: Permissions::new_hrtime(opts.allow_hrtime),
        })
    }

    pub fn allow_all() -> Self {
        Self {
            read: Permissions::new_read(&Some(vec![]), false).unwrap(),
            write: Permissions::new_write(&Some(vec![]), false).unwrap(),
            net: Permissions::new_net(&Some(vec![]), false).unwrap(),
            env: Permissions::new_env(&Some(vec![]), false).unwrap(),
            run: Permissions::new_run(&Some(vec![]), false).unwrap(),
            ffi: Permissions::new_ffi(&Some(vec![]), false).unwrap(),
            hrtime: Permissions::new_hrtime(true),
        }
    }

    /// A helper function that determines if the module specifier is a local or
    /// remote, and performs a read or net check for the specifier.
    pub fn check_specifier(&mut self, specifier: &ModuleSpecifier) -> Result<(), AnyError> {
        match specifier.scheme() {
            "file" => match specifier.to_file_path() {
                Ok(path) => self.read.check(&path),
                Err(_) => Err(uri_error(format!(
                    "Invalid file path.\n  Specifier: {}",
                    specifier
                ))),
            },
            "data" => Ok(()),
            "blob" => Ok(()),
            _ => self.net.check_url(specifier),
        }
    }
}

impl deno_net::NetPermissions for Permissions {
    fn check_net<T: AsRef<str>>(&mut self, host: &(T, Option<u16>)) -> Result<(), AnyError> {
        self.net.check(host)
    }

    fn check_read(&mut self, path: &Path) -> Result<(), AnyError> {
        self.read.check(path)
    }

    fn check_write(&mut self, path: &Path) -> Result<(), AnyError> {
        self.write.check(path)
    }
}

impl deno_fetch::FetchPermissions for Permissions {
    fn check_net_url(&mut self, url: &url::Url) -> Result<(), AnyError> {
        self.net.check_url(url)
    }

    fn check_read(&mut self, path: &Path) -> Result<(), AnyError> {
        self.read.check(path)
    }
}

impl deno_web::TimersPermission for Permissions {
    fn allow_hrtime(&mut self) -> bool {
        self.hrtime.check().is_ok()
    }

    fn check_unstable(&self, state: &OpState, api_name: &'static str) {
        crate::ops::check_unstable(state, api_name);
    }
}

impl deno_websocket::WebSocketPermissions for Permissions {
    fn check_net_url(&mut self, url: &url::Url) -> Result<(), AnyError> {
        self.net.check_url(url)
    }
}

fn unit_permission_from_flag_bool(
    flag: bool,
    name: &'static str,
    description: &'static str,
    prompt: bool,
) -> UnitPermission {
    UnitPermission {
        name,
        description,
        state: if flag {
            PermissionState::Granted
        } else {
            PermissionState::Prompt
        },
        prompt,
    }
}

fn global_state_from_option<T>(flag: &Option<Vec<T>>) -> PermissionState {
    if matches!(flag, Some(v) if v.is_empty()) {
        PermissionState::Granted
    } else {
        PermissionState::Prompt
    }
}

pub fn resolve_read_allowlist(
    allow: &Option<Vec<PathBuf>>,
) -> Result<HashSet<ReadDescriptor>, AnyError> {
    if let Some(v) = allow {
        v.iter()
            .map(|raw_path| {
                if raw_path.as_os_str().is_empty() {
                    Err(AnyError::msg("Empty path is not allowed"))
                } else {
                    resolve_from_cwd(Path::new(&raw_path)).map(ReadDescriptor)
                }
            })
            .collect()
    } else {
        Ok(HashSet::new())
    }
}

pub fn resolve_write_allowlist(
    allow: &Option<Vec<PathBuf>>,
) -> Result<HashSet<WriteDescriptor>, AnyError> {
    if let Some(v) = allow {
        v.iter()
            .map(|raw_path| {
                if raw_path.as_os_str().is_empty() {
                    Err(AnyError::msg("Empty path is not allowed"))
                } else {
                    resolve_from_cwd(Path::new(&raw_path)).map(WriteDescriptor)
                }
            })
            .collect()
    } else {
        Ok(HashSet::new())
    }
}

pub fn resolve_ffi_allowlist(
    allow: &Option<Vec<PathBuf>>,
) -> Result<HashSet<FfiDescriptor>, AnyError> {
    if let Some(v) = allow {
        v.iter()
            .map(|raw_path| {
                if raw_path.as_os_str().is_empty() {
                    Err(AnyError::msg("Empty path is not allowed"))
                } else {
                    resolve_from_cwd(Path::new(&raw_path)).map(FfiDescriptor)
                }
            })
            .collect()
    } else {
        Ok(HashSet::new())
    }
}

/// Arbitrary helper. Resolves the path from CWD, and also gets a path that
/// can be displayed without leaking the CWD when not allowed.
fn resolved_and_display_path(path: &Path) -> (PathBuf, PathBuf) {
    let resolved_path = resolve_from_cwd(path).unwrap();
    let display_path = path.to_path_buf();
    (resolved_path, display_path)
}

fn escalation_error() -> AnyError {
    custom_error(
        "PermissionDenied",
        "Can't escalate parent thread permissions",
    )
}

#[derive(Debug, PartialEq)]
pub enum ChildUnitPermissionArg {
    Inherit,
    Granted,
    NotGranted,
}

impl<'de> Deserialize<'de> for ChildUnitPermissionArg {
    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
    where
        D: Deserializer<'de>,
    {
        struct ChildUnitPermissionArgVisitor;
        impl<'de> de::Visitor<'de> for ChildUnitPermissionArgVisitor {
            type Value = ChildUnitPermissionArg;

            fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
                formatter.write_str("\"inherit\" or boolean")
            }

            fn visit_unit<E>(self) -> Result<ChildUnitPermissionArg, E>
            where
                E: de::Error,
            {
                Ok(ChildUnitPermissionArg::NotGranted)
            }

            fn visit_str<E>(self, v: &str) -> Result<ChildUnitPermissionArg, E>
            where
                E: de::Error,
            {
                if v == "inherit" {
                    Ok(ChildUnitPermissionArg::Inherit)
                } else {
                    Err(de::Error::invalid_value(de::Unexpected::Str(v), &self))
                }
            }

            fn visit_bool<E>(self, v: bool) -> Result<ChildUnitPermissionArg, E>
            where
                E: de::Error,
            {
                match v {
                    true => Ok(ChildUnitPermissionArg::Granted),
                    false => Ok(ChildUnitPermissionArg::NotGranted),
                }
            }
        }
        deserializer.deserialize_any(ChildUnitPermissionArgVisitor)
    }
}

#[derive(Debug, PartialEq)]
pub enum ChildUnaryPermissionArg {
    Inherit,
    Granted,
    NotGranted,
    GrantedList(Vec<String>),
}

impl<'de> Deserialize<'de> for ChildUnaryPermissionArg {
    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
    where
        D: Deserializer<'de>,
    {
        struct ChildUnaryPermissionArgVisitor;
        impl<'de> de::Visitor<'de> for ChildUnaryPermissionArgVisitor {
            type Value = ChildUnaryPermissionArg;

            fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
                formatter.write_str("\"inherit\" or boolean or string[]")
            }

            fn visit_unit<E>(self) -> Result<ChildUnaryPermissionArg, E>
            where
                E: de::Error,
            {
                Ok(ChildUnaryPermissionArg::NotGranted)
            }

            fn visit_str<E>(self, v: &str) -> Result<ChildUnaryPermissionArg, E>
            where
                E: de::Error,
            {
                if v == "inherit" {
                    Ok(ChildUnaryPermissionArg::Inherit)
                } else {
                    Err(de::Error::invalid_value(de::Unexpected::Str(v), &self))
                }
            }

            fn visit_bool<E>(self, v: bool) -> Result<ChildUnaryPermissionArg, E>
            where
                E: de::Error,
            {
                match v {
                    true => Ok(ChildUnaryPermissionArg::Granted),
                    false => Ok(ChildUnaryPermissionArg::NotGranted),
                }
            }

            fn visit_seq<V>(self, mut v: V) -> Result<ChildUnaryPermissionArg, V::Error>
            where
                V: de::SeqAccess<'de>,
            {
                let mut granted_list = vec![];
                while let Some(value) = v.next_element::<String>()? {
                    granted_list.push(value);
                }
                Ok(ChildUnaryPermissionArg::GrantedList(granted_list))
            }
        }
        deserializer.deserialize_any(ChildUnaryPermissionArgVisitor)
    }
}

/// Directly deserializable from JS worker and test permission options.
#[derive(Debug, PartialEq)]
pub struct ChildPermissionsArg {
    env: ChildUnaryPermissionArg,
    hrtime: ChildUnitPermissionArg,
    net: ChildUnaryPermissionArg,
    ffi: ChildUnaryPermissionArg,
    read: ChildUnaryPermissionArg,
    run: ChildUnaryPermissionArg,
    write: ChildUnaryPermissionArg,
}

impl ChildPermissionsArg {
    pub fn inherit() -> Self {
        ChildPermissionsArg {
            env: ChildUnaryPermissionArg::Inherit,
            hrtime: ChildUnitPermissionArg::Inherit,
            net: ChildUnaryPermissionArg::Inherit,
            ffi: ChildUnaryPermissionArg::Inherit,
            read: ChildUnaryPermissionArg::Inherit,
            run: ChildUnaryPermissionArg::Inherit,
            write: ChildUnaryPermissionArg::Inherit,
        }
    }

    pub fn none() -> Self {
        ChildPermissionsArg {
            env: ChildUnaryPermissionArg::NotGranted,
            hrtime: ChildUnitPermissionArg::NotGranted,
            net: ChildUnaryPermissionArg::NotGranted,
            ffi: ChildUnaryPermissionArg::NotGranted,
            read: ChildUnaryPermissionArg::NotGranted,
            run: ChildUnaryPermissionArg::NotGranted,
            write: ChildUnaryPermissionArg::NotGranted,
        }
    }
}

impl<'de> Deserialize<'de> for ChildPermissionsArg {
    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
    where
        D: Deserializer<'de>,
    {
        struct ChildPermissionsArgVisitor;
        impl<'de> de::Visitor<'de> for ChildPermissionsArgVisitor {
            type Value = ChildPermissionsArg;

            fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
                formatter.write_str("\"inherit\" or \"none\" or object")
            }

            fn visit_unit<E>(self) -> Result<ChildPermissionsArg, E>
            where
                E: de::Error,
            {
                Ok(ChildPermissionsArg::inherit())
            }

            fn visit_str<E>(self, v: &str) -> Result<ChildPermissionsArg, E>
            where
                E: de::Error,
            {
                if v == "inherit" {
                    Ok(ChildPermissionsArg::inherit())
                } else if v == "none" {
                    Ok(ChildPermissionsArg::none())
                } else {
                    Err(de::Error::invalid_value(de::Unexpected::Str(v), &self))
                }
            }

            fn visit_map<V>(self, mut v: V) -> Result<ChildPermissionsArg, V::Error>
            where
                V: de::MapAccess<'de>,
            {
                let mut child_permissions_arg = ChildPermissionsArg::none();
                while let Some((key, value)) = v.next_entry::<String, serde_json::Value>()? {
                    if key == "env" {
                        let arg = serde_json::from_value::<ChildUnaryPermissionArg>(value);
                        child_permissions_arg.env = arg.map_err(|e| {
                            de::Error::custom(format!("(deno.permissions.env) {}", e))
                        })?;
                    } else if key == "hrtime" {
                        let arg = serde_json::from_value::<ChildUnitPermissionArg>(value);
                        child_permissions_arg.hrtime = arg.map_err(|e| {
                            de::Error::custom(format!("(deno.permissions.hrtime) {}", e))
                        })?;
                    } else if key == "net" {
                        let arg = serde_json::from_value::<ChildUnaryPermissionArg>(value);
                        child_permissions_arg.net = arg.map_err(|e| {
                            de::Error::custom(format!("(deno.permissions.net) {}", e))
                        })?;
                    } else if key == "ffi" {
                        let arg = serde_json::from_value::<ChildUnaryPermissionArg>(value);
                        child_permissions_arg.ffi = arg.map_err(|e| {
                            de::Error::custom(format!("(deno.permissions.ffi) {}", e))
                        })?;
                    } else if key == "read" {
                        let arg = serde_json::from_value::<ChildUnaryPermissionArg>(value);
                        child_permissions_arg.read = arg.map_err(|e| {
                            de::Error::custom(format!("(deno.permissions.read) {}", e))
                        })?;
                    } else if key == "run" {
                        let arg = serde_json::from_value::<ChildUnaryPermissionArg>(value);
                        child_permissions_arg.run = arg.map_err(|e| {
                            de::Error::custom(format!("(deno.permissions.run) {}", e))
                        })?;
                    } else if key == "write" {
                        let arg = serde_json::from_value::<ChildUnaryPermissionArg>(value);
                        child_permissions_arg.write = arg.map_err(|e| {
                            de::Error::custom(format!("(deno.permissions.write) {}", e))
                        })?;
                    } else {
                        return Err(de::Error::custom("unknown permission name"));
                    }
                }
                Ok(child_permissions_arg)
            }
        }
        deserializer.deserialize_any(ChildPermissionsArgVisitor)
    }
}

pub fn create_child_permissions(
    main_perms: &mut Permissions,
    child_permissions_arg: ChildPermissionsArg,
) -> Result<Permissions, AnyError> {
    let mut worker_perms = Permissions::default();
    match child_permissions_arg.env {
        ChildUnaryPermissionArg::Inherit => {
            worker_perms.env = main_perms.env.clone();
        }
        ChildUnaryPermissionArg::Granted => {
            if main_perms.env.check_all().is_err() {
                return Err(escalation_error());
            }
            worker_perms.env.global_state = PermissionState::Granted;
        }
        ChildUnaryPermissionArg::NotGranted => {}
        ChildUnaryPermissionArg::GrantedList(granted_list) => {
            worker_perms.env.granted_list =
                Permissions::new_env(&Some(granted_list), false)?.granted_list;
            if !worker_perms
                .env
                .granted_list
                .iter()
                .all(|desc| main_perms.env.check(desc.as_ref()).is_ok())
            {
                return Err(escalation_error());
            }
        }
    }
    worker_perms.env.denied_list = main_perms.env.denied_list.clone();
    if main_perms.env.global_state == PermissionState::Denied {
        worker_perms.env.global_state = PermissionState::Denied;
    }
    worker_perms.env.prompt = main_perms.env.prompt;
    match child_permissions_arg.hrtime {
        ChildUnitPermissionArg::Inherit => {
            worker_perms.hrtime = main_perms.hrtime.clone();
        }
        ChildUnitPermissionArg::Granted => {
            if main_perms.hrtime.check().is_err() {
                return Err(escalation_error());
            }
            worker_perms.hrtime.state = PermissionState::Granted;
        }
        ChildUnitPermissionArg::NotGranted => {}
    }
    if main_perms.hrtime.state == PermissionState::Denied {
        worker_perms.hrtime.state = PermissionState::Denied;
    }
    worker_perms.hrtime.prompt = main_perms.hrtime.prompt;
    match child_permissions_arg.net {
        ChildUnaryPermissionArg::Inherit => {
            worker_perms.net = main_perms.net.clone();
        }
        ChildUnaryPermissionArg::Granted => {
            if main_perms.net.check_all().is_err() {
                return Err(escalation_error());
            }
            worker_perms.net.global_state = PermissionState::Granted;
        }
        ChildUnaryPermissionArg::NotGranted => {}
        ChildUnaryPermissionArg::GrantedList(granted_list) => {
            worker_perms.net.granted_list =
                Permissions::new_net(&Some(granted_list), false)?.granted_list;
            if !worker_perms
                .net
                .granted_list
                .iter()
                .all(|desc| main_perms.net.check(&(&desc.0, desc.1)).is_ok())
            {
                return Err(escalation_error());
            }
        }
    }
    worker_perms.net.denied_list = main_perms.net.denied_list.clone();
    if main_perms.net.global_state == PermissionState::Denied {
        worker_perms.net.global_state = PermissionState::Denied;
    }
    worker_perms.net.prompt = main_perms.net.prompt;
    match child_permissions_arg.ffi {
        ChildUnaryPermissionArg::Inherit => {
            worker_perms.ffi = main_perms.ffi.clone();
        }
        ChildUnaryPermissionArg::Granted => {
            if main_perms.ffi.check_all().is_err() {
                return Err(escalation_error());
            }
            worker_perms.ffi.global_state = PermissionState::Granted;
        }
        ChildUnaryPermissionArg::NotGranted => {}
        ChildUnaryPermissionArg::GrantedList(granted_list) => {
            worker_perms.ffi.granted_list = Permissions::new_ffi(
                &Some(granted_list.iter().map(PathBuf::from).collect()),
                false,
            )?
            .granted_list;
            if !worker_perms
                .ffi
                .granted_list
                .iter()
                .all(|desc| main_perms.ffi.check(Some(&desc.0)).is_ok())
            {
                return Err(escalation_error());
            }
        }
    }
    worker_perms.ffi.denied_list = main_perms.ffi.denied_list.clone();
    if main_perms.ffi.global_state == PermissionState::Denied {
        worker_perms.ffi.global_state = PermissionState::Denied;
    }
    worker_perms.ffi.prompt = main_perms.ffi.prompt;
    match child_permissions_arg.read {
        ChildUnaryPermissionArg::Inherit => {
            worker_perms.read = main_perms.read.clone();
        }
        ChildUnaryPermissionArg::Granted => {
            if main_perms.read.check_all().is_err() {
                return Err(escalation_error());
            }
            worker_perms.read.global_state = PermissionState::Granted;
        }
        ChildUnaryPermissionArg::NotGranted => {}
        ChildUnaryPermissionArg::GrantedList(granted_list) => {
            worker_perms.read.granted_list = Permissions::new_read(
                &Some(granted_list.iter().map(PathBuf::from).collect()),
                false,
            )?
            .granted_list;
            if !worker_perms
                .read
                .granted_list
                .iter()
                .all(|desc| main_perms.read.check(&desc.0).is_ok())
            {
                return Err(escalation_error());
            }
        }
    }
    worker_perms.read.denied_list = main_perms.read.denied_list.clone();
    if main_perms.read.global_state == PermissionState::Denied {
        worker_perms.read.global_state = PermissionState::Denied;
    }
    worker_perms.read.prompt = main_perms.read.prompt;
    match child_permissions_arg.run {
        ChildUnaryPermissionArg::Inherit => {
            worker_perms.run = main_perms.run.clone();
        }
        ChildUnaryPermissionArg::Granted => {
            if main_perms.run.check_all().is_err() {
                return Err(escalation_error());
            }
            worker_perms.run.global_state = PermissionState::Granted;
        }
        ChildUnaryPermissionArg::NotGranted => {}
        ChildUnaryPermissionArg::GrantedList(granted_list) => {
            worker_perms.run.granted_list =
                Permissions::new_run(&Some(granted_list), false)?.granted_list;
            if !worker_perms
                .run
                .granted_list
                .iter()
                .all(|desc| main_perms.run.check(&desc.to_string()).is_ok())
            {
                return Err(escalation_error());
            }
        }
    }
    worker_perms.run.denied_list = main_perms.run.denied_list.clone();
    if main_perms.run.global_state == PermissionState::Denied {
        worker_perms.run.global_state = PermissionState::Denied;
    }
    worker_perms.run.prompt = main_perms.run.prompt;
    match child_permissions_arg.write {
        ChildUnaryPermissionArg::Inherit => {
            worker_perms.write = main_perms.write.clone();
        }
        ChildUnaryPermissionArg::Granted => {
            if main_perms.write.check_all().is_err() {
                return Err(escalation_error());
            }
            worker_perms.write.global_state = PermissionState::Granted;
        }
        ChildUnaryPermissionArg::NotGranted => {}
        ChildUnaryPermissionArg::GrantedList(granted_list) => {
            worker_perms.write.granted_list = Permissions::new_write(
                &Some(granted_list.iter().map(PathBuf::from).collect()),
                false,
            )?
            .granted_list;
            if !worker_perms
                .write
                .granted_list
                .iter()
                .all(|desc| main_perms.write.check(&desc.0).is_ok())
            {
                return Err(escalation_error());
            }
        }
    }
    worker_perms.write.denied_list = main_perms.write.denied_list.clone();
    if main_perms.write.global_state == PermissionState::Denied {
        worker_perms.write.global_state = PermissionState::Denied;
    }
    worker_perms.write.prompt = main_perms.write.prompt;
    Ok(worker_perms)
}

/// Shows the permission prompt and returns the answer according to the user input.
/// This loops until the user gives the proper input.
#[cfg(not(test))]
fn permission_prompt(message: &str, name: &str) -> bool {
    if !atty::is(atty::Stream::Stdin) || !atty::is(atty::Stream::Stderr) {
        return false;
    };

    #[cfg(unix)]
    fn clear_stdin() -> Result<(), AnyError> {
        // TODO(bartlomieju):
        #[allow(clippy::undocumented_unsafe_blocks)]
        let r = unsafe { libc::tcflush(0, libc::TCIFLUSH) };
        assert_eq!(r, 0);
        Ok(())
    }

    #[cfg(not(unix))]
    fn clear_stdin() -> Result<(), AnyError> {
        use deno_core::anyhow::bail;
        use winapi::shared::minwindef::TRUE;
        use winapi::shared::minwindef::UINT;
        use winapi::shared::minwindef::WORD;
        use winapi::shared::ntdef::WCHAR;
        use winapi::um::processenv::GetStdHandle;
        use winapi::um::winbase::STD_INPUT_HANDLE;
        use winapi::um::wincon::FlushConsoleInputBuffer;
        use winapi::um::wincon::PeekConsoleInputW;
        use winapi::um::wincon::WriteConsoleInputW;
        use winapi::um::wincontypes::INPUT_RECORD;
        use winapi::um::wincontypes::KEY_EVENT;
        use winapi::um::winnt::HANDLE;
        use winapi::um::winuser::MapVirtualKeyW;
        use winapi::um::winuser::MAPVK_VK_TO_VSC;
        use winapi::um::winuser::VK_RETURN;

        // SAFETY: winapi calls
        unsafe {
            let stdin = GetStdHandle(STD_INPUT_HANDLE);
            // emulate an enter key press to clear any line buffered console characters
            emulate_enter_key_press(stdin)?;
            // read the buffered line or enter key press
            read_stdin_line()?;
            // check if our emulated key press was executed
            if is_input_buffer_empty(stdin)? {
                // if so, move the cursor up to prevent a blank line
                move_cursor_up()?;
            } else {
                // the emulated key press is still pending, so a buffered line was read
                // and we can flush the emulated key press
                flush_input_buffer(stdin)?;
            }
        }

        return Ok(());

        unsafe fn flush_input_buffer(stdin: HANDLE) -> Result<(), AnyError> {
            let success = FlushConsoleInputBuffer(stdin);
            if success != TRUE {
                bail!(
                    "Could not flush the console input buffer: {}",
                    std::io::Error::last_os_error()
                )
            }
            Ok(())
        }

        unsafe fn emulate_enter_key_press(stdin: HANDLE) -> Result<(), AnyError> {
            // https://github.com/libuv/libuv/blob/a39009a5a9252a566ca0704d02df8dabc4ce328f/src/win/tty.c#L1121-L1131
            let mut input_record: INPUT_RECORD = std::mem::zeroed();
            input_record.EventType = KEY_EVENT;
            input_record.Event.KeyEvent_mut().bKeyDown = TRUE;
            input_record.Event.KeyEvent_mut().wRepeatCount = 1;
            input_record.Event.KeyEvent_mut().wVirtualKeyCode = VK_RETURN as WORD;
            input_record.Event.KeyEvent_mut().wVirtualScanCode =
                MapVirtualKeyW(VK_RETURN as UINT, MAPVK_VK_TO_VSC) as WORD;
            *input_record.Event.KeyEvent_mut().uChar.UnicodeChar_mut() = '\r' as WCHAR;

            let mut record_written = 0;
            let success = WriteConsoleInputW(stdin, &input_record, 1, &mut record_written);
            if success != TRUE {
                bail!(
                    "Could not emulate enter key press: {}",
                    std::io::Error::last_os_error()
                );
            }
            Ok(())
        }

        unsafe fn is_input_buffer_empty(stdin: HANDLE) -> Result<bool, AnyError> {
            let mut buffer = Vec::with_capacity(1);
            let mut events_read = 0;
            let success = PeekConsoleInputW(stdin, buffer.as_mut_ptr(), 1, &mut events_read);
            if success != TRUE {
                bail!(
                    "Could not peek the console input buffer: {}",
                    std::io::Error::last_os_error()
                )
            }
            Ok(events_read == 0)
        }

        fn move_cursor_up() -> Result<(), AnyError> {
            use std::io::Write;
            write!(std::io::stderr(), "\x1B[1A")?;
            Ok(())
        }

        fn read_stdin_line() -> Result<(), AnyError> {
            let mut input = String::new();
            let stdin = std::io::stdin();
            stdin.read_line(&mut input)?;
            Ok(())
        }
    }

    // For security reasons we must consume everything in stdin so that previously
    // buffered data cannot effect the prompt.
    if let Err(err) = clear_stdin() {
        eprintln!("Error clearing stdin for permission prompt. {:#}", err);
        return false; // don't grant permission if this fails
    }

    let opts = "[y/n (y = yes allow, n = no deny)] ";
    let msg = format!(
        "{}  ️Deno requests {}. Run again with --allow-{} to bypass this prompt.\n   Allow? {} ",
        PERMISSION_EMOJI, message, name, opts
    );
    // print to stderr so that if deno is > to a file this is still displayed.
    eprint!("{}", colors::bold(&msg));
    loop {
        let mut input = String::new();
        let stdin = std::io::stdin();
        let result = stdin.read_line(&mut input);
        if result.is_err() {
            return false;
        };
        let ch = match input.chars().next() {
            None => return false,
            Some(v) => v,
        };
        match ch.to_ascii_lowercase() {
            'y' => return true,
            'n' => return false,
            _ => {
                // If we don't get a recognized option try again.
                let msg_again = format!("Unrecognized option '{}' {}", ch, opts);
                eprint!("{}", colors::bold(&msg_again));
            }
        };
    }
}

// When testing, permission prompt returns the value of STUB_PROMPT_VALUE
// which we set from the test functions.
#[cfg(test)]
fn permission_prompt(_message: &str, _flag: &str) -> bool {
    STUB_PROMPT_VALUE.load(Ordering::SeqCst)
}

#[cfg(test)]
static STUB_PROMPT_VALUE: AtomicBool = AtomicBool::new(true);

#[cfg(test)]
static PERMISSION_PROMPT_STUB_VALUE_SETTER: Lazy<Mutex<PermissionPromptStubValueSetter>> =
    Lazy::new(|| Mutex::new(PermissionPromptStubValueSetter));

#[cfg(test)]
struct PermissionPromptStubValueSetter;

#[cfg(test)]
impl PermissionPromptStubValueSetter {
    pub fn set(&self, value: bool) {
        STUB_PROMPT_VALUE.store(value, Ordering::SeqCst);
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use deno_core::resolve_url_or_path;
    use deno_core::serde_json::json;

    // Creates vector of strings, Vec<String>
    macro_rules! svec {
      ($($x:expr),*) => (vec![$($x.to_string()),*]);
  }

    #[test]
    fn check_paths() {
        let allowlist = vec![
            PathBuf::from("/a/specific/dir/name"),
            PathBuf::from("/a/specific"),
            PathBuf::from("/b/c"),
        ];

        let mut perms = Permissions::from_options(&PermissionsOptions {
            allow_read: Some(allowlist.clone()),
            allow_write: Some(allowlist),
            ..Default::default()
        })
        .unwrap();

        // Inside of /a/specific and /a/specific/dir/name
        assert!(perms.read.check(Path::new("/a/specific/dir/name")).is_ok());
        assert!(perms.write.check(Path::new("/a/specific/dir/name")).is_ok());

        // Inside of /a/specific but outside of /a/specific/dir/name
        assert!(perms.read.check(Path::new("/a/specific/dir")).is_ok());
        assert!(perms.write.check(Path::new("/a/specific/dir")).is_ok());

        // Inside of /a/specific and /a/specific/dir/name
        assert!(perms
            .read
            .check(Path::new("/a/specific/dir/name/inner"))
            .is_ok());
        assert!(perms
            .write
            .check(Path::new("/a/specific/dir/name/inner"))
            .is_ok());

        // Inside of /a/specific but outside of /a/specific/dir/name
        assert!(perms.read.check(Path::new("/a/specific/other/dir")).is_ok());
        assert!(perms
            .write
            .check(Path::new("/a/specific/other/dir"))
            .is_ok());

        // Exact match with /b/c
        assert!(perms.read.check(Path::new("/b/c")).is_ok());
        assert!(perms.write.check(Path::new("/b/c")).is_ok());

        // Sub path within /b/c
        assert!(perms.read.check(Path::new("/b/c/sub/path")).is_ok());
        assert!(perms.write.check(Path::new("/b/c/sub/path")).is_ok());

        // Sub path within /b/c, needs normalizing
        assert!(perms
            .read
            .check(Path::new("/b/c/sub/path/../path/."))
            .is_ok());
        assert!(perms
            .write
            .check(Path::new("/b/c/sub/path/../path/."))
            .is_ok());

        // Inside of /b but outside of /b/c
        assert!(perms.read.check(Path::new("/b/e")).is_err());
        assert!(perms.write.check(Path::new("/b/e")).is_err());

        // Inside of /a but outside of /a/specific
        assert!(perms.read.check(Path::new("/a/b")).is_err());
        assert!(perms.write.check(Path::new("/a/b")).is_err());
    }

    #[test]
    fn test_check_net_with_values() {
        let mut perms = Permissions::from_options(&PermissionsOptions {
            allow_net: Some(svec![
                "localhost",
                "deno.land",
                "github.com:3000",
                "127.0.0.1",
                "172.16.0.2:8000",
                "www.github.com:443"
            ]),
            ..Default::default()
        })
        .unwrap();

        let domain_tests = vec![
            ("localhost", 1234, true),
            ("deno.land", 0, true),
            ("deno.land", 3000, true),
            ("deno.lands", 0, false),
            ("deno.lands", 3000, false),
            ("github.com", 3000, true),
            ("github.com", 0, false),
            ("github.com", 2000, false),
            ("github.net", 3000, false),
            ("127.0.0.1", 0, true),
            ("127.0.0.1", 3000, true),
            ("127.0.0.2", 0, false),
            ("127.0.0.2", 3000, false),
            ("172.16.0.2", 8000, true),
            ("172.16.0.2", 0, false),
            ("172.16.0.2", 6000, false),
            ("172.16.0.1", 8000, false),
            // Just some random hosts that should err
            ("somedomain", 0, false),
            ("192.168.0.1", 0, false),
        ];

        for (host, port, is_ok) in domain_tests {
            assert_eq!(is_ok, perms.net.check(&(host, Some(port))).is_ok());
        }
    }

    #[test]
    fn test_check_net_only_flag() {
        let mut perms = Permissions::from_options(&PermissionsOptions {
            allow_net: Some(svec![]), // this means `--allow-net` is present without values following `=` sign
            ..Default::default()
        })
        .unwrap();

        let domain_tests = vec![
            ("localhost", 1234),
            ("deno.land", 0),
            ("deno.land", 3000),
            ("deno.lands", 0),
            ("deno.lands", 3000),
            ("github.com", 3000),
            ("github.com", 0),
            ("github.com", 2000),
            ("github.net", 3000),
            ("127.0.0.1", 0),
            ("127.0.0.1", 3000),
            ("127.0.0.2", 0),
            ("127.0.0.2", 3000),
            ("172.16.0.2", 8000),
            ("172.16.0.2", 0),
            ("172.16.0.2", 6000),
            ("172.16.0.1", 8000),
            ("somedomain", 0),
            ("192.168.0.1", 0),
        ];

        for (host, port) in domain_tests {
            assert!(perms.net.check(&(host, Some(port))).is_ok());
        }
    }

    #[test]
    fn test_check_net_no_flag() {
        let mut perms = Permissions::from_options(&PermissionsOptions {
            allow_net: None,
            ..Default::default()
        })
        .unwrap();

        let domain_tests = vec![
            ("localhost", 1234),
            ("deno.land", 0),
            ("deno.land", 3000),
            ("deno.lands", 0),
            ("deno.lands", 3000),
            ("github.com", 3000),
            ("github.com", 0),
            ("github.com", 2000),
            ("github.net", 3000),
            ("127.0.0.1", 0),
            ("127.0.0.1", 3000),
            ("127.0.0.2", 0),
            ("127.0.0.2", 3000),
            ("172.16.0.2", 8000),
            ("172.16.0.2", 0),
            ("172.16.0.2", 6000),
            ("172.16.0.1", 8000),
            ("somedomain", 0),
            ("192.168.0.1", 0),
        ];

        for (host, port) in domain_tests {
            assert!(perms.net.check(&(host, Some(port))).is_err());
        }
    }

    #[test]
    fn test_check_net_url() {
        let mut perms = Permissions::from_options(&PermissionsOptions {
            allow_net: Some(svec![
                "localhost",
                "deno.land",
                "github.com:3000",
                "127.0.0.1",
                "172.16.0.2:8000",
                "www.github.com:443"
            ]),
            ..Default::default()
        })
        .unwrap();

        let url_tests = vec![
            // Any protocol + port for localhost should be ok, since we don't specify
            ("http://localhost", true),
            ("https://localhost", true),
            ("https://localhost:4443", true),
            ("tcp://localhost:5000", true),
            ("udp://localhost:6000", true),
            // Correct domain + any port and protocol should be ok incorrect shouldn't
            ("https://deno.land/std/example/welcome.ts", true),
            ("https://deno.land:3000/std/example/welcome.ts", true),
            ("https://deno.lands/std/example/welcome.ts", false),
            ("https://deno.lands:3000/std/example/welcome.ts", false),
            // Correct domain + port should be ok all other combinations should err
            ("https://github.com:3000/denoland/deno", true),
            ("https://github.com/denoland/deno", false),
            ("https://github.com:2000/denoland/deno", false),
            ("https://github.net:3000/denoland/deno", false),
            // Correct ipv4 address + any port should be ok others should err
            ("tcp://127.0.0.1", true),
            ("https://127.0.0.1", true),
            ("tcp://127.0.0.1:3000", true),
            ("https://127.0.0.1:3000", true),
            ("tcp://127.0.0.2", false),
            ("https://127.0.0.2", false),
            ("tcp://127.0.0.2:3000", false),
            ("https://127.0.0.2:3000", false),
            // Correct address + port should be ok all other combinations should err
            ("tcp://172.16.0.2:8000", true),
            ("https://172.16.0.2:8000", true),
            ("tcp://172.16.0.2", false),
            ("https://172.16.0.2", false),
            ("tcp://172.16.0.2:6000", false),
            ("https://172.16.0.2:6000", false),
            ("tcp://172.16.0.1:8000", false),
            ("https://172.16.0.1:8000", false),
            // Testing issue #6531 (Network permissions check doesn't account for well-known default ports) so we dont regress
            ("https://www.github.com:443/robots.txt", true),
        ];

        for (url_str, is_ok) in url_tests {
            let u = url::Url::parse(url_str).unwrap();
            assert_eq!(is_ok, perms.net.check_url(&u).is_ok());
        }
    }

    #[test]
    fn check_specifiers() {
        let read_allowlist = if cfg!(target_os = "windows") {
            vec![PathBuf::from("C:\\a")]
        } else {
            vec![PathBuf::from("/a")]
        };
        let mut perms = Permissions::from_options(&PermissionsOptions {
            allow_read: Some(read_allowlist),
            allow_net: Some(svec!["localhost"]),
            ..Default::default()
        })
        .unwrap();

        let mut fixtures = vec![
            (
                resolve_url_or_path("http://localhost:4545/mod.ts").unwrap(),
                true,
            ),
            (
                resolve_url_or_path("http://deno.land/x/mod.ts").unwrap(),
                false,
            ),
            (
                resolve_url_or_path("data:text/plain,Hello%2C%20Deno!").unwrap(),
                true,
            ),
        ];

        if cfg!(target_os = "windows") {
            fixtures.push((resolve_url_or_path("file:///C:/a/mod.ts").unwrap(), true));
            fixtures.push((resolve_url_or_path("file:///C:/b/mod.ts").unwrap(), false));
        } else {
            fixtures.push((resolve_url_or_path("file:///a/mod.ts").unwrap(), true));
            fixtures.push((resolve_url_or_path("file:///b/mod.ts").unwrap(), false));
        }

        for (specifier, expected) in fixtures {
            assert_eq!(perms.check_specifier(&specifier).is_ok(), expected);
        }
    }

    #[test]
    fn check_invalid_specifiers() {
        let mut perms = Permissions::allow_all();

        let mut test_cases = vec![];

        if cfg!(target_os = "windows") {
            test_cases.push("file://");
            test_cases.push("file:///");
        } else {
            test_cases.push("file://remotehost/");
        }

        for url in test_cases {
            assert!(perms
                .check_specifier(&resolve_url_or_path(url).unwrap())
                .is_err());
        }
    }

    #[test]
    fn test_query() {
        let perms1 = Permissions::allow_all();
        let perms2 = Permissions {
            read: UnaryPermission {
                global_state: PermissionState::Prompt,
                ..Permissions::new_read(&Some(vec![PathBuf::from("/foo")]), false).unwrap()
            },
            write: UnaryPermission {
                global_state: PermissionState::Prompt,
                ..Permissions::new_write(&Some(vec![PathBuf::from("/foo")]), false).unwrap()
            },
            net: UnaryPermission {
                global_state: PermissionState::Prompt,
                ..Permissions::new_net(&Some(svec!["127.0.0.1:8000"]), false).unwrap()
            },
            env: UnaryPermission {
                global_state: PermissionState::Prompt,
                ..Permissions::new_env(&Some(svec!["HOME"]), false).unwrap()
            },
            run: UnaryPermission {
                global_state: PermissionState::Prompt,
                ..Permissions::new_run(&Some(svec!["deno"]), false).unwrap()
            },
            ffi: UnaryPermission {
                global_state: PermissionState::Prompt,
                ..Permissions::new_ffi(&Some(vec![PathBuf::from("deno")]), false).unwrap()
            },
            hrtime: UnitPermission {
                state: PermissionState::Prompt,
                ..Permissions::new_hrtime(false)
            },
        };
        #[rustfmt::skip]
    {
      assert_eq!(perms1.read.query(None), PermissionState::Granted);
      assert_eq!(perms1.read.query(Some(Path::new("/foo"))), PermissionState::Granted);
      assert_eq!(perms2.read.query(None), PermissionState::Prompt);
      assert_eq!(perms2.read.query(Some(Path::new("/foo"))), PermissionState::Granted);
      assert_eq!(perms2.read.query(Some(Path::new("/foo/bar"))), PermissionState::Granted);
      assert_eq!(perms1.write.query(None), PermissionState::Granted);
      assert_eq!(perms1.write.query(Some(Path::new("/foo"))), PermissionState::Granted);
      assert_eq!(perms2.write.query(None), PermissionState::Prompt);
      assert_eq!(perms2.write.query(Some(Path::new("/foo"))), PermissionState::Granted);
      assert_eq!(perms2.write.query(Some(Path::new("/foo/bar"))), PermissionState::Granted);
      assert_eq!(perms1.net.query::<&str>(None), PermissionState::Granted);
      assert_eq!(perms1.net.query(Some(&("127.0.0.1", None))), PermissionState::Granted);
      assert_eq!(perms2.net.query::<&str>(None), PermissionState::Prompt);
      assert_eq!(perms2.net.query(Some(&("127.0.0.1", Some(8000)))), PermissionState::Granted);
      assert_eq!(perms1.env.query(None), PermissionState::Granted);
      assert_eq!(perms1.env.query(Some("HOME")), PermissionState::Granted);
      assert_eq!(perms2.env.query(None), PermissionState::Prompt);
      assert_eq!(perms2.env.query(Some("HOME")), PermissionState::Granted);
      assert_eq!(perms1.run.query(None), PermissionState::Granted);
      assert_eq!(perms1.run.query(Some("deno")), PermissionState::Granted);
      assert_eq!(perms2.run.query(None), PermissionState::Prompt);
      assert_eq!(perms2.run.query(Some("deno")), PermissionState::Granted);
      assert_eq!(perms1.ffi.query(None), PermissionState::Granted);
      assert_eq!(perms1.ffi.query(Some(Path::new("deno"))), PermissionState::Granted);
      assert_eq!(perms2.ffi.query(None), PermissionState::Prompt);
      assert_eq!(perms2.ffi.query(Some(Path::new("deno"))), PermissionState::Granted);
      assert_eq!(perms1.hrtime.query(), PermissionState::Granted);
      assert_eq!(perms2.hrtime.query(), PermissionState::Prompt);
    };
    }

    #[test]
    fn test_request() {
        let mut perms: Permissions = Default::default();
        #[rustfmt::skip]
    {
      let prompt_value = PERMISSION_PROMPT_STUB_VALUE_SETTER.lock();
      prompt_value.set(true);
      assert_eq!(perms.read.request(Some(Path::new("/foo"))), PermissionState::Granted);
      assert_eq!(perms.read.query(None), PermissionState::Prompt);
      prompt_value.set(false);
      assert_eq!(perms.read.request(Some(Path::new("/foo/bar"))), PermissionState::Granted);
      prompt_value.set(false);
      assert_eq!(perms.write.request(Some(Path::new("/foo"))), PermissionState::Denied);
      assert_eq!(perms.write.query(Some(Path::new("/foo/bar"))), PermissionState::Prompt);
      prompt_value.set(true);
      assert_eq!(perms.write.request(None), PermissionState::Denied);
      prompt_value.set(true);
      assert_eq!(perms.net.request(Some(&("127.0.0.1", None))), PermissionState::Granted);
      prompt_value.set(false);
      assert_eq!(perms.net.request(Some(&("127.0.0.1", Some(8000)))), PermissionState::Granted);
      prompt_value.set(true);
      assert_eq!(perms.env.request(Some("HOME")), PermissionState::Granted);
      assert_eq!(perms.env.query(None), PermissionState::Prompt);
      prompt_value.set(false);
      assert_eq!(perms.env.request(Some("HOME")), PermissionState::Granted);
      prompt_value.set(true);
      assert_eq!(perms.run.request(Some("deno")), PermissionState::Granted);
      assert_eq!(perms.run.query(None), PermissionState::Prompt);
      prompt_value.set(false);
      assert_eq!(perms.run.request(Some("deno")), PermissionState::Granted);
      prompt_value.set(true);
      assert_eq!(perms.ffi.request(Some(Path::new("deno"))), PermissionState::Granted);
      assert_eq!(perms.ffi.query(None), PermissionState::Prompt);
      prompt_value.set(false);
      assert_eq!(perms.ffi.request(Some(Path::new("deno"))), PermissionState::Granted);
      prompt_value.set(false);
      assert_eq!(perms.hrtime.request(), PermissionState::Denied);
      prompt_value.set(true);
      assert_eq!(perms.hrtime.request(), PermissionState::Denied);
    };
    }

    #[test]
    fn test_revoke() {
        let mut perms = Permissions {
            read: UnaryPermission {
                global_state: PermissionState::Prompt,
                ..Permissions::new_read(
                    &Some(vec![PathBuf::from("/foo"), PathBuf::from("/foo/baz")]),
                    false,
                )
                .unwrap()
            },
            write: UnaryPermission {
                global_state: PermissionState::Prompt,
                ..Permissions::new_write(
                    &Some(vec![PathBuf::from("/foo"), PathBuf::from("/foo/baz")]),
                    false,
                )
                .unwrap()
            },
            net: UnaryPermission {
                global_state: PermissionState::Prompt,
                ..Permissions::new_net(&Some(svec!["127.0.0.1", "127.0.0.1:8000"]), false).unwrap()
            },
            env: UnaryPermission {
                global_state: PermissionState::Prompt,
                ..Permissions::new_env(&Some(svec!["HOME"]), false).unwrap()
            },
            run: UnaryPermission {
                global_state: PermissionState::Prompt,
                ..Permissions::new_run(&Some(svec!["deno"]), false).unwrap()
            },
            ffi: UnaryPermission {
                global_state: PermissionState::Prompt,
                ..Permissions::new_ffi(&Some(vec![PathBuf::from("deno")]), false).unwrap()
            },
            hrtime: UnitPermission {
                state: PermissionState::Denied,
                ..Permissions::new_hrtime(false)
            },
        };
        #[rustfmt::skip]
    {
      assert_eq!(perms.read.revoke(Some(Path::new("/foo/bar"))), PermissionState::Prompt);
      assert_eq!(perms.read.query(Some(Path::new("/foo"))), PermissionState::Prompt);
      assert_eq!(perms.read.query(Some(Path::new("/foo/baz"))), PermissionState::Granted);
      assert_eq!(perms.write.revoke(Some(Path::new("/foo/bar"))), PermissionState::Prompt);
      assert_eq!(perms.write.query(Some(Path::new("/foo"))), PermissionState::Prompt);
      assert_eq!(perms.write.query(Some(Path::new("/foo/baz"))), PermissionState::Granted);
      assert_eq!(perms.net.revoke(Some(&("127.0.0.1", Some(9000)))), PermissionState::Prompt);
      assert_eq!(perms.net.query(Some(&("127.0.0.1", None))), PermissionState::Prompt);
      assert_eq!(perms.net.query(Some(&("127.0.0.1", Some(8000)))), PermissionState::Granted);
      assert_eq!(perms.env.revoke(Some("HOME")), PermissionState::Prompt);
      assert_eq!(perms.run.revoke(Some("deno")), PermissionState::Prompt);
      assert_eq!(perms.ffi.revoke(Some(Path::new("deno"))), PermissionState::Prompt);
      assert_eq!(perms.hrtime.revoke(), PermissionState::Denied);
    };
    }

    #[test]
    fn test_check() {
        let mut perms = Permissions {
            read: Permissions::new_read(&None, true).unwrap(),
            write: Permissions::new_write(&None, true).unwrap(),
            net: Permissions::new_net(&None, true).unwrap(),
            env: Permissions::new_env(&None, true).unwrap(),
            run: Permissions::new_run(&None, true).unwrap(),
            ffi: Permissions::new_ffi(&None, true).unwrap(),
            hrtime: Permissions::new_hrtime(false),
        };

        let prompt_value = PERMISSION_PROMPT_STUB_VALUE_SETTER.lock();

        prompt_value.set(true);
        assert!(perms.read.check(Path::new("/foo")).is_ok());
        prompt_value.set(false);
        assert!(perms.read.check(Path::new("/foo")).is_ok());
        assert!(perms.read.check(Path::new("/bar")).is_err());

        prompt_value.set(true);
        assert!(perms.write.check(Path::new("/foo")).is_ok());
        prompt_value.set(false);
        assert!(perms.write.check(Path::new("/foo")).is_ok());
        assert!(perms.write.check(Path::new("/bar")).is_err());

        prompt_value.set(true);
        assert!(perms.net.check(&("127.0.0.1", Some(8000))).is_ok());
        prompt_value.set(false);
        assert!(perms.net.check(&("127.0.0.1", Some(8000))).is_ok());
        assert!(perms.net.check(&("127.0.0.1", Some(8001))).is_err());
        assert!(perms.net.check(&("127.0.0.1", None)).is_err());
        assert!(perms.net.check(&("deno.land", Some(8000))).is_err());
        assert!(perms.net.check(&("deno.land", None)).is_err());

        prompt_value.set(true);
        assert!(perms.run.check("cat").is_ok());
        prompt_value.set(false);
        assert!(perms.run.check("cat").is_ok());
        assert!(perms.run.check("ls").is_err());

        prompt_value.set(true);
        assert!(perms.env.check("HOME").is_ok());
        prompt_value.set(false);
        assert!(perms.env.check("HOME").is_ok());
        assert!(perms.env.check("PATH").is_err());

        assert!(perms.hrtime.check().is_err());
    }

    #[test]
    fn test_check_fail() {
        let mut perms = Permissions {
            read: Permissions::new_read(&None, true).unwrap(),
            write: Permissions::new_write(&None, true).unwrap(),
            net: Permissions::new_net(&None, true).unwrap(),
            env: Permissions::new_env(&None, true).unwrap(),
            run: Permissions::new_run(&None, true).unwrap(),
            ffi: Permissions::new_ffi(&None, true).unwrap(),
            hrtime: Permissions::new_hrtime(false),
        };

        let prompt_value = PERMISSION_PROMPT_STUB_VALUE_SETTER.lock();

        prompt_value.set(false);
        assert!(perms.read.check(Path::new("/foo")).is_err());
        prompt_value.set(true);
        assert!(perms.read.check(Path::new("/foo")).is_err());
        assert!(perms.read.check(Path::new("/bar")).is_ok());
        prompt_value.set(false);
        assert!(perms.read.check(Path::new("/bar")).is_ok());

        prompt_value.set(false);
        assert!(perms.write.check(Path::new("/foo")).is_err());
        prompt_value.set(true);
        assert!(perms.write.check(Path::new("/foo")).is_err());
        assert!(perms.write.check(Path::new("/bar")).is_ok());
        prompt_value.set(false);
        assert!(perms.write.check(Path::new("/bar")).is_ok());

        prompt_value.set(false);
        assert!(perms.net.check(&("127.0.0.1", Some(8000))).is_err());
        prompt_value.set(true);
        assert!(perms.net.check(&("127.0.0.1", Some(8000))).is_err());
        assert!(perms.net.check(&("127.0.0.1", Some(8001))).is_ok());
        assert!(perms.net.check(&("deno.land", Some(8000))).is_ok());
        prompt_value.set(false);
        assert!(perms.net.check(&("127.0.0.1", Some(8001))).is_ok());
        assert!(perms.net.check(&("deno.land", Some(8000))).is_ok());

        prompt_value.set(false);
        assert!(perms.run.check("cat").is_err());
        prompt_value.set(true);
        assert!(perms.run.check("cat").is_err());
        assert!(perms.run.check("ls").is_ok());
        prompt_value.set(false);
        assert!(perms.run.check("ls").is_ok());

        prompt_value.set(false);
        assert!(perms.env.check("HOME").is_err());
        prompt_value.set(true);
        assert!(perms.env.check("HOME").is_err());
        assert!(perms.env.check("PATH").is_ok());
        prompt_value.set(false);
        assert!(perms.env.check("PATH").is_ok());

        prompt_value.set(false);
        assert!(perms.hrtime.check().is_err());
        prompt_value.set(true);
        assert!(perms.hrtime.check().is_err());
    }

    #[test]
    #[cfg(windows)]
    fn test_env_windows() {
        let prompt_value = PERMISSION_PROMPT_STUB_VALUE_SETTER.lock();
        let mut perms = Permissions::allow_all();
        perms.env = UnaryPermission {
            global_state: PermissionState::Prompt,
            ..Permissions::new_env(&Some(svec!["HOME"]), false).unwrap()
        };

        prompt_value.set(true);
        assert!(perms.env.check("HOME").is_ok());
        prompt_value.set(false);
        assert!(perms.env.check("HOME").is_ok());
        assert!(perms.env.check("hOmE").is_ok());

        assert_eq!(perms.env.revoke(Some("HomE")), PermissionState::Prompt);
    }

    #[test]
    fn test_deserialize_child_permissions_arg() {
        assert_eq!(
            ChildPermissionsArg::inherit(),
            ChildPermissionsArg {
                env: ChildUnaryPermissionArg::Inherit,
                hrtime: ChildUnitPermissionArg::Inherit,
                net: ChildUnaryPermissionArg::Inherit,
                ffi: ChildUnaryPermissionArg::Inherit,
                read: ChildUnaryPermissionArg::Inherit,
                run: ChildUnaryPermissionArg::Inherit,
                write: ChildUnaryPermissionArg::Inherit,
            }
        );
        assert_eq!(
            ChildPermissionsArg::none(),
            ChildPermissionsArg {
                env: ChildUnaryPermissionArg::NotGranted,
                hrtime: ChildUnitPermissionArg::NotGranted,
                net: ChildUnaryPermissionArg::NotGranted,
                ffi: ChildUnaryPermissionArg::NotGranted,
                read: ChildUnaryPermissionArg::NotGranted,
                run: ChildUnaryPermissionArg::NotGranted,
                write: ChildUnaryPermissionArg::NotGranted,
            }
        );
        assert_eq!(
            serde_json::from_value::<ChildPermissionsArg>(json!("inherit")).unwrap(),
            ChildPermissionsArg::inherit()
        );
        assert_eq!(
            serde_json::from_value::<ChildPermissionsArg>(json!("none")).unwrap(),
            ChildPermissionsArg::none()
        );
        assert_eq!(
            serde_json::from_value::<ChildPermissionsArg>(json!({})).unwrap(),
            ChildPermissionsArg::none()
        );
        assert_eq!(
            serde_json::from_value::<ChildPermissionsArg>(json!({
              "env": ["foo", "bar"],
            }))
            .unwrap(),
            ChildPermissionsArg {
                env: ChildUnaryPermissionArg::GrantedList(svec!["foo", "bar"]),
                ..ChildPermissionsArg::none()
            }
        );
        assert_eq!(
            serde_json::from_value::<ChildPermissionsArg>(json!({
              "hrtime": true,
            }))
            .unwrap(),
            ChildPermissionsArg {
                hrtime: ChildUnitPermissionArg::Granted,
                ..ChildPermissionsArg::none()
            }
        );
        assert_eq!(
            serde_json::from_value::<ChildPermissionsArg>(json!({
              "hrtime": false,
            }))
            .unwrap(),
            ChildPermissionsArg {
                hrtime: ChildUnitPermissionArg::NotGranted,
                ..ChildPermissionsArg::none()
            }
        );
        assert_eq!(
            serde_json::from_value::<ChildPermissionsArg>(json!({
              "env": true,
              "net": true,
              "ffi": true,
              "read": true,
              "run": true,
              "write": true,
            }))
            .unwrap(),
            ChildPermissionsArg {
                env: ChildUnaryPermissionArg::Granted,
                net: ChildUnaryPermissionArg::Granted,
                ffi: ChildUnaryPermissionArg::Granted,
                read: ChildUnaryPermissionArg::Granted,
                run: ChildUnaryPermissionArg::Granted,
                write: ChildUnaryPermissionArg::Granted,
                ..ChildPermissionsArg::none()
            }
        );
        assert_eq!(
            serde_json::from_value::<ChildPermissionsArg>(json!({
              "env": false,
              "net": false,
              "ffi": false,
              "read": false,
              "run": false,
              "write": false,
            }))
            .unwrap(),
            ChildPermissionsArg {
                env: ChildUnaryPermissionArg::NotGranted,
                net: ChildUnaryPermissionArg::NotGranted,
                ffi: ChildUnaryPermissionArg::NotGranted,
                read: ChildUnaryPermissionArg::NotGranted,
                run: ChildUnaryPermissionArg::NotGranted,
                write: ChildUnaryPermissionArg::NotGranted,
                ..ChildPermissionsArg::none()
            }
        );
        assert_eq!(
            serde_json::from_value::<ChildPermissionsArg>(json!({
              "env": ["foo", "bar"],
              "net": ["foo", "bar:8000"],
              "ffi": ["foo", "file:///bar/baz"],
              "read": ["foo", "file:///bar/baz"],
              "run": ["foo", "file:///bar/baz", "./qux"],
              "write": ["foo", "file:///bar/baz"],
            }))
            .unwrap(),
            ChildPermissionsArg {
                env: ChildUnaryPermissionArg::GrantedList(svec!["foo", "bar"]),
                net: ChildUnaryPermissionArg::GrantedList(svec!["foo", "bar:8000"]),
                ffi: ChildUnaryPermissionArg::GrantedList(svec!["foo", "file:///bar/baz"]),
                read: ChildUnaryPermissionArg::GrantedList(svec!["foo", "file:///bar/baz"]),
                run: ChildUnaryPermissionArg::GrantedList(svec!["foo", "file:///bar/baz", "./qux"]),
                write: ChildUnaryPermissionArg::GrantedList(svec!["foo", "file:///bar/baz"]),
                ..ChildPermissionsArg::none()
            }
        );
    }

    #[test]
    fn test_create_child_permissions() {
        let mut main_perms = Permissions {
            env: Permissions::new_env(&Some(vec![]), false).unwrap(),
            hrtime: Permissions::new_hrtime(true),
            net: Permissions::new_net(&Some(svec!["foo", "bar"]), false).unwrap(),
            ..Default::default()
        };
        assert_eq!(
            create_child_permissions(
                &mut main_perms.clone(),
                ChildPermissionsArg {
                    env: ChildUnaryPermissionArg::Inherit,
                    hrtime: ChildUnitPermissionArg::NotGranted,
                    net: ChildUnaryPermissionArg::GrantedList(svec!["foo"]),
                    ffi: ChildUnaryPermissionArg::NotGranted,
                    ..ChildPermissionsArg::none()
                }
            )
            .unwrap(),
            Permissions {
                env: Permissions::new_env(&Some(vec![]), false).unwrap(),
                net: Permissions::new_net(&Some(svec!["foo"]), false).unwrap(),
                ..Default::default()
            }
        );
        assert!(create_child_permissions(
            &mut main_perms.clone(),
            ChildPermissionsArg {
                net: ChildUnaryPermissionArg::Granted,
                ..ChildPermissionsArg::none()
            }
        )
        .is_err());
        assert!(create_child_permissions(
            &mut main_perms.clone(),
            ChildPermissionsArg {
                net: ChildUnaryPermissionArg::GrantedList(svec!["foo", "bar", "baz"]),
                ..ChildPermissionsArg::none()
            }
        )
        .is_err());
        assert!(create_child_permissions(
            &mut main_perms,
            ChildPermissionsArg {
                ffi: ChildUnaryPermissionArg::GrantedList(svec!["foo"]),
                ..ChildPermissionsArg::none()
            }
        )
        .is_err());
    }

    #[test]
    fn test_create_child_permissions_with_prompt() {
        let prompt_value = PERMISSION_PROMPT_STUB_VALUE_SETTER.lock();
        let mut main_perms = Permissions::from_options(&PermissionsOptions {
            prompt: true,
            ..Default::default()
        })
        .unwrap();
        prompt_value.set(true);
        let worker_perms = create_child_permissions(
            &mut main_perms,
            ChildPermissionsArg {
                read: ChildUnaryPermissionArg::Granted,
                run: ChildUnaryPermissionArg::GrantedList(svec!["foo", "bar"]),
                ..ChildPermissionsArg::none()
            },
        )
        .unwrap();
        assert_eq!(main_perms, worker_perms);
    }

    #[test]
    fn test_create_child_permissions_with_inherited_denied_list() {
        let prompt_value = PERMISSION_PROMPT_STUB_VALUE_SETTER.lock();
        let mut main_perms = Permissions::from_options(&PermissionsOptions {
            prompt: true,
            ..Default::default()
        })
        .unwrap();
        prompt_value.set(false);
        assert!(main_perms.write.check(&PathBuf::from("foo")).is_err());
        let worker_perms =
            create_child_permissions(&mut main_perms.clone(), ChildPermissionsArg::none()).unwrap();
        assert_eq!(worker_perms.write.denied_list, main_perms.write.denied_list);
    }

    #[test]
    fn test_handle_empty_value() {
        assert!(Permissions::new_read(&Some(vec![PathBuf::new()]), false).is_err());
        assert!(Permissions::new_env(&Some(vec![String::new()]), false).is_err());
        assert!(Permissions::new_run(&Some(vec![String::new()]), false).is_err());
        assert!(Permissions::new_ffi(&Some(vec![PathBuf::new()]), false).is_err());
        assert!(Permissions::new_net(&Some(svec![String::new()]), false).is_err());
        assert!(Permissions::new_write(&Some(vec![PathBuf::new()]), false).is_err());
    }
}