lib.rs

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.

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::unsync::sync::AtomicFlag;
use deno_core::url::Url;
use deno_core::ModuleSpecifier;
use deno_path_util::normalize_path;
use deno_path_util::url_to_file_path;
use deno_terminal::colors;
use fqdn::FQDN;
use once_cell::sync::Lazy;
use std::borrow::Cow;
use std::collections::HashSet;
use std::ffi::OsStr;
use std::fmt;
use std::fmt::Debug;
use std::hash::Hash;
use std::net::IpAddr;
use std::net::Ipv6Addr;
use std::path::Path;
use std::path::PathBuf;
use std::string::ToString;
use std::sync::Arc;

pub mod prompter;
use prompter::permission_prompt;
use prompter::PERMISSION_EMOJI;

pub use prompter::set_prompt_callbacks;
pub use prompter::set_prompter;
pub use prompter::PermissionPrompter;
pub use prompter::PromptCallback;
pub use prompter::PromptResponse;

#[derive(Debug, thiserror::Error)]
#[error("Requires {access}, {}", format_permission_error(.name))]
pub struct PermissionDeniedError {
  pub access: String,
  pub name: &'static str,
}

fn format_permission_error(name: &'static str) -> String {
  if is_standalone() {
    format!("specify the required permissions during compilation using `deno compile --allow-{name}`")
  } else {
    format!("run again with the --allow-{name} flag")
  }
}

/// Fast exit from permission check routines if this permission
/// is in the "fully-granted" state.
macro_rules! skip_check_if_is_permission_fully_granted {
  ($this:ident) => {
    if $this.is_allow_all() {
      return Ok(());
    }
  };
}

#[inline]
fn resolve_from_known_cwd(path: &Path, cwd: &Path) -> PathBuf {
  if path.is_absolute() {
    normalize_path(path)
  } else {
    normalize_path(cwd.join(path))
  }
}

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

/// Quadri-state value for storing permission state
#[derive(
  Eq, PartialEq, Default, Debug, Clone, Copy, Deserialize, PartialOrd,
)]
pub enum PermissionState {
  Granted = 0,
  GrantedPartial = 1,
  #[default]
  Prompt = 2,
  Denied = 3,
}

/// `AllowPartial` prescribes how to treat a permission which is partially
/// denied due to a `--deny-*` flag affecting a subscope of the queried
/// permission.
///
/// `TreatAsGranted` is used in place of `TreatAsPartialGranted` when we don't
/// want to wastefully check for partial denials when, say, checking read
/// access for a file.
#[derive(Debug, Eq, PartialEq)]
#[allow(clippy::enum_variant_names)]
enum AllowPartial {
  TreatAsGranted,
  TreatAsDenied,
  TreatAsPartialGranted,
}

impl From<bool> for AllowPartial {
  fn from(value: bool) -> Self {
    if value {
      Self::TreatAsGranted
    } else {
      Self::TreatAsDenied
    }
  }
}

impl PermissionState {
  #[inline(always)]
  fn log_perm_access(
    name: &'static str,
    info: impl FnOnce() -> Option<String>,
  ) {
    // 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: &'static str,
    info: impl FnOnce() -> Option<String>,
  ) -> String {
    format!(
      "{} access{}",
      name,
      info().map(|info| format!(" to {info}")).unwrap_or_default(),
    )
  }

  fn error(
    name: &'static str,
    info: impl FnOnce() -> Option<String>,
  ) -> PermissionDeniedError {
    PermissionDeniedError {
      access: Self::fmt_access(name, info),
      name,
    }
  }

  /// Check the permission state. bool is whether a prompt was issued.
  #[inline]
  fn check(
    self,
    name: &'static str,
    api_name: Option<&str>,
    info: Option<&str>,
    prompt: bool,
  ) -> (Result<(), PermissionDeniedError>, bool, bool) {
    self.check2(name, api_name, || info.map(|s| s.to_string()), prompt)
  }

  #[inline]
  fn check2(
    self,
    name: &'static str,
    api_name: Option<&str>,
    info: impl Fn() -> Option<String>,
    prompt: bool,
  ) -> (Result<(), PermissionDeniedError>, bool, bool) {
    match self {
      PermissionState::Granted => {
        Self::log_perm_access(name, info);
        (Ok(()), false, false)
      }
      PermissionState::Prompt if prompt => {
        let msg = format!(
          "{} access{}",
          name,
          info()
            .map(|info| { format!(" to {info}") })
            .unwrap_or_default(),
        );
        match permission_prompt(&msg, name, api_name, true) {
          PromptResponse::Allow => {
            Self::log_perm_access(name, info);
            (Ok(()), true, false)
          }
          PromptResponse::AllowAll => {
            Self::log_perm_access(name, info);
            (Ok(()), true, true)
          }
          PromptResponse::Deny => (Err(Self::error(name, info)), true, false),
        }
      }
      _ => (Err(Self::error(name, info)), false, false),
    }
  }
}

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

#[derive(Clone, Debug, Eq, 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 PromptResponse::Allow
        == permission_prompt(
          &format!("access to {}", self.description),
          self.name,
          Some("Deno.permissions.query()"),
          false,
        )
      {
        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<(), PermissionDeniedError> {
    let (result, prompted, _is_allow_all) =
      self.state.check(self.name, None, None, self.prompt);
    if prompted {
      if result.is_ok() {
        self.state = PermissionState::Granted;
      } else {
        self.state = PermissionState::Denied;
      }
    }
    result
  }

  fn create_child_permissions(
    &mut self,
    flag: ChildUnitPermissionArg,
  ) -> Result<Self, ChildPermissionError> {
    let mut perm = self.clone();
    match flag {
      ChildUnitPermissionArg::Inherit => {
        // copy
      }
      ChildUnitPermissionArg::Granted => {
        if self.check().is_err() {
          return Err(ChildPermissionError::Escalation);
        }
        perm.state = PermissionState::Granted;
      }
      ChildUnitPermissionArg::NotGranted => {
        perm.state = PermissionState::Prompt;
      }
    }
    if self.state == PermissionState::Denied {
      perm.state = PermissionState::Denied;
    }
    Ok(perm)
  }
}

/// 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)]
pub 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()
  }
}

pub trait QueryDescriptor: Debug {
  type AllowDesc: Debug + Eq + Clone + Hash;
  type DenyDesc: Debug + Eq + Clone + Hash;

  fn flag_name() -> &'static str;
  fn display_name(&self) -> Cow<str>;

  fn from_allow(allow: &Self::AllowDesc) -> Self;

  fn as_allow(&self) -> Option<Self::AllowDesc>;
  fn as_deny(&self) -> Self::DenyDesc;

  /// Generic check function to check this descriptor against a `UnaryPermission`.
  fn check_in_permission(
    &self,
    perm: &mut UnaryPermission<Self>,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError>;

  fn matches_allow(&self, other: &Self::AllowDesc) -> bool;
  fn matches_deny(&self, other: &Self::DenyDesc) -> bool;

  /// Gets if this query descriptor should revoke the provided allow descriptor.
  fn revokes(&self, other: &Self::AllowDesc) -> bool;
  fn stronger_than_deny(&self, other: &Self::DenyDesc) -> bool;
  fn overlaps_deny(&self, other: &Self::DenyDesc) -> bool;
}

fn format_display_name(display_name: Cow<str>) -> String {
  if display_name.starts_with('<') && display_name.ends_with('>') {
    display_name.into_owned()
  } else {
    format!("\"{}\"", display_name)
  }
}

#[derive(Debug, Eq, PartialEq)]
pub struct UnaryPermission<TQuery: QueryDescriptor + ?Sized> {
  granted_global: bool,
  granted_list: HashSet<TQuery::AllowDesc>,
  flag_denied_global: bool,
  flag_denied_list: HashSet<TQuery::DenyDesc>,
  prompt_denied_global: bool,
  prompt_denied_list: HashSet<TQuery::DenyDesc>,
  prompt: bool,
}

impl<TQuery: QueryDescriptor> Default for UnaryPermission<TQuery> {
  fn default() -> Self {
    UnaryPermission {
      granted_global: Default::default(),
      granted_list: Default::default(),
      flag_denied_global: Default::default(),
      flag_denied_list: Default::default(),
      prompt_denied_global: Default::default(),
      prompt_denied_list: Default::default(),
      prompt: Default::default(),
    }
  }
}

impl<TQuery: QueryDescriptor> Clone for UnaryPermission<TQuery> {
  fn clone(&self) -> Self {
    Self {
      granted_global: self.granted_global,
      granted_list: self.granted_list.clone(),
      flag_denied_global: self.flag_denied_global,
      flag_denied_list: self.flag_denied_list.clone(),
      prompt_denied_global: self.prompt_denied_global,
      prompt_denied_list: self.prompt_denied_list.clone(),
      prompt: self.prompt,
    }
  }
}

impl<TQuery: QueryDescriptor> UnaryPermission<TQuery> {
  pub fn allow_all() -> Self {
    Self {
      granted_global: true,
      ..Default::default()
    }
  }

  pub fn is_allow_all(&self) -> bool {
    self.granted_global
      && self.flag_denied_list.is_empty()
      && self.prompt_denied_list.is_empty()
  }

  pub fn check_all_api(
    &mut self,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(self);
    self.check_desc(None, false, api_name)
  }

  fn check_desc(
    &mut self,
    desc: Option<&TQuery>,
    assert_non_partial: bool,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    let (result, prompted, is_allow_all) = self
      .query_desc(desc, AllowPartial::from(!assert_non_partial))
      .check2(
        TQuery::flag_name(),
        api_name,
        || desc.map(|d| format_display_name(d.display_name())),
        self.prompt,
      );
    if prompted {
      if result.is_ok() {
        if is_allow_all {
          self.insert_granted(None);
        } else {
          self.insert_granted(desc);
        }
      } else {
        self.insert_prompt_denied(desc.map(|d| d.as_deny()));
      }
    }
    result
  }

  fn query_desc(
    &self,
    desc: Option<&TQuery>,
    allow_partial: AllowPartial,
  ) -> PermissionState {
    if self.is_flag_denied(desc) || self.is_prompt_denied(desc) {
      PermissionState::Denied
    } else if self.is_granted(desc) {
      match allow_partial {
        AllowPartial::TreatAsGranted => PermissionState::Granted,
        AllowPartial::TreatAsDenied => {
          if self.is_partial_flag_denied(desc) {
            PermissionState::Denied
          } else {
            PermissionState::Granted
          }
        }
        AllowPartial::TreatAsPartialGranted => {
          if self.is_partial_flag_denied(desc) {
            PermissionState::GrantedPartial
          } else {
            PermissionState::Granted
          }
        }
      }
    } else if matches!(allow_partial, AllowPartial::TreatAsDenied)
      && self.is_partial_flag_denied(desc)
    {
      PermissionState::Denied
    } else {
      PermissionState::Prompt
    }
  }

  fn request_desc(&mut self, desc: Option<&TQuery>) -> PermissionState {
    let state = self.query_desc(desc, AllowPartial::TreatAsPartialGranted);
    if state == PermissionState::Granted {
      self.insert_granted(desc);
      return state;
    }
    if state != PermissionState::Prompt {
      return state;
    }
    if !self.prompt {
      return PermissionState::Denied;
    }
    let mut message = String::with_capacity(40);
    message.push_str(&format!("{} access", TQuery::flag_name()));
    if let Some(desc) = desc {
      message
        .push_str(&format!(" to {}", format_display_name(desc.display_name())));
    }
    match permission_prompt(
      &message,
      TQuery::flag_name(),
      Some("Deno.permissions.request()"),
      true,
    ) {
      PromptResponse::Allow => {
        self.insert_granted(desc);
        PermissionState::Granted
      }
      PromptResponse::Deny => {
        self.insert_prompt_denied(desc.map(|d| d.as_deny()));
        PermissionState::Denied
      }
      PromptResponse::AllowAll => {
        self.insert_granted(None);
        PermissionState::Granted
      }
    }
  }

  fn revoke_desc(&mut self, desc: Option<&TQuery>) -> PermissionState {
    match desc {
      Some(desc) => {
        self.granted_list.retain(|v| !desc.revokes(v));
      }
      None => {
        self.granted_global = false;
        // Revoke global is a special case where the entire granted list is
        // cleared. It's inconsistent with the granular case where only
        // descriptors stronger than the revoked one are purged.
        self.granted_list.clear();
      }
    }
    self.query_desc(desc, AllowPartial::TreatAsPartialGranted)
  }

  fn is_granted(&self, query: Option<&TQuery>) -> bool {
    match query {
      Some(query) => {
        self.granted_global
          || self.granted_list.iter().any(|v| query.matches_allow(v))
      }
      None => self.granted_global,
    }
  }

  fn is_flag_denied(&self, query: Option<&TQuery>) -> bool {
    match query {
      Some(query) => {
        self.flag_denied_global
          || self.flag_denied_list.iter().any(|v| query.matches_deny(v))
      }
      None => self.flag_denied_global,
    }
  }

  fn is_prompt_denied(&self, query: Option<&TQuery>) -> bool {
    match query {
      Some(query) => self
        .prompt_denied_list
        .iter()
        .any(|v| query.stronger_than_deny(v)),
      None => self.prompt_denied_global || !self.prompt_denied_list.is_empty(),
    }
  }

  fn is_partial_flag_denied(&self, query: Option<&TQuery>) -> bool {
    match query {
      None => !self.flag_denied_list.is_empty(),
      Some(query) => {
        self.flag_denied_list.iter().any(|v| query.overlaps_deny(v))
      }
    }
  }

  fn insert_granted(&mut self, query: Option<&TQuery>) -> bool {
    let desc = match query.map(|q| q.as_allow()) {
      Some(Some(allow_desc)) => Some(allow_desc),
      Some(None) => {
        // the user was prompted for this descriptor in order to not
        // expose anything about the system to the program, but the
        // descriptor wasn't valid so no permission was raised
        return false;
      }
      None => None,
    };
    Self::list_insert(desc, &mut self.granted_global, &mut self.granted_list);
    true
  }

  fn insert_prompt_denied(&mut self, desc: Option<TQuery::DenyDesc>) {
    Self::list_insert(
      desc,
      &mut self.prompt_denied_global,
      &mut self.prompt_denied_list,
    );
  }

  fn list_insert<T: Hash + Eq>(
    desc: Option<T>,
    list_global: &mut bool,
    list: &mut HashSet<T>,
  ) {
    match desc {
      Some(desc) => {
        list.insert(desc);
      }
      None => *list_global = true,
    }
  }

  fn create_child_permissions<E>(
    &mut self,
    flag: ChildUnaryPermissionArg,
    parse: impl Fn(&str) -> Result<Option<TQuery::AllowDesc>, E>,
  ) -> Result<UnaryPermission<TQuery>, ChildPermissionError>
  where
    ChildPermissionError: From<E>,
  {
    let mut perms = Self::default();

    match flag {
      ChildUnaryPermissionArg::Inherit => {
        perms.clone_from(self);
      }
      ChildUnaryPermissionArg::Granted => {
        if self.check_all_api(None).is_err() {
          return Err(ChildPermissionError::Escalation);
        }
        perms.granted_global = true;
      }
      ChildUnaryPermissionArg::NotGranted => {}
      ChildUnaryPermissionArg::GrantedList(granted_list) => {
        perms.granted_list = granted_list
          .iter()
          .filter_map(|i| parse(i).transpose())
          .collect::<Result<_, E>>()?;
        if !perms.granted_list.iter().all(|desc| {
          TQuery::from_allow(desc)
            .check_in_permission(self, None)
            .is_ok()
        }) {
          return Err(ChildPermissionError::Escalation);
        }
      }
    }
    perms.flag_denied_global = self.flag_denied_global;
    perms.prompt_denied_global = self.prompt_denied_global;
    perms.prompt = self.prompt;
    perms.flag_denied_list.clone_from(&self.flag_denied_list);
    perms
      .prompt_denied_list
      .clone_from(&self.prompt_denied_list);

    Ok(perms)
  }
}

#[derive(Clone, Eq, PartialEq, Hash, Debug)]
pub struct PathQueryDescriptor {
  pub requested: String,
  pub resolved: PathBuf,
}

impl PathQueryDescriptor {
  pub fn into_ffi(self) -> FfiQueryDescriptor {
    FfiQueryDescriptor(self)
  }

  pub fn into_read(self) -> ReadQueryDescriptor {
    ReadQueryDescriptor(self)
  }

  pub fn into_write(self) -> WriteQueryDescriptor {
    WriteQueryDescriptor(self)
  }
}

#[derive(Clone, Eq, PartialEq, Hash, Debug)]
pub struct ReadQueryDescriptor(pub PathQueryDescriptor);

impl QueryDescriptor for ReadQueryDescriptor {
  type AllowDesc = ReadDescriptor;
  type DenyDesc = ReadDescriptor;

  fn flag_name() -> &'static str {
    "read"
  }

  fn display_name(&self) -> Cow<str> {
    Cow::Borrowed(self.0.requested.as_str())
  }

  fn from_allow(allow: &Self::AllowDesc) -> Self {
    PathQueryDescriptor {
      requested: allow.0.to_string_lossy().into_owned(),
      resolved: allow.0.clone(),
    }
    .into_read()
  }

  fn as_allow(&self) -> Option<Self::AllowDesc> {
    Some(ReadDescriptor(self.0.resolved.clone()))
  }

  fn as_deny(&self) -> Self::DenyDesc {
    ReadDescriptor(self.0.resolved.clone())
  }

  fn check_in_permission(
    &self,
    perm: &mut UnaryPermission<Self>,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(perm);
    perm.check_desc(Some(self), true, api_name)
  }

  fn matches_allow(&self, other: &Self::AllowDesc) -> bool {
    self.0.resolved.starts_with(&other.0)
  }

  fn matches_deny(&self, other: &Self::DenyDesc) -> bool {
    self.0.resolved.starts_with(&other.0)
  }

  fn revokes(&self, other: &Self::AllowDesc) -> bool {
    self.matches_allow(other)
  }

  fn stronger_than_deny(&self, other: &Self::DenyDesc) -> bool {
    other.0.starts_with(&self.0.resolved)
  }

  fn overlaps_deny(&self, other: &Self::DenyDesc) -> bool {
    self.stronger_than_deny(other)
  }
}

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

#[derive(Clone, Eq, PartialEq, Hash, Debug)]
pub struct WriteQueryDescriptor(pub PathQueryDescriptor);

impl QueryDescriptor for WriteQueryDescriptor {
  type AllowDesc = WriteDescriptor;
  type DenyDesc = WriteDescriptor;

  fn flag_name() -> &'static str {
    "write"
  }

  fn display_name(&self) -> Cow<str> {
    Cow::Borrowed(&self.0.requested)
  }

  fn from_allow(allow: &Self::AllowDesc) -> Self {
    WriteQueryDescriptor(PathQueryDescriptor {
      requested: allow.0.to_string_lossy().into_owned(),
      resolved: allow.0.clone(),
    })
  }

  fn as_allow(&self) -> Option<Self::AllowDesc> {
    Some(WriteDescriptor(self.0.resolved.clone()))
  }

  fn as_deny(&self) -> Self::DenyDesc {
    WriteDescriptor(self.0.resolved.clone())
  }

  fn check_in_permission(
    &self,
    perm: &mut UnaryPermission<Self>,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(perm);
    perm.check_desc(Some(self), true, api_name)
  }

  fn matches_allow(&self, other: &Self::AllowDesc) -> bool {
    self.0.resolved.starts_with(&other.0)
  }

  fn matches_deny(&self, other: &Self::DenyDesc) -> bool {
    self.0.resolved.starts_with(&other.0)
  }

  fn revokes(&self, other: &Self::AllowDesc) -> bool {
    self.matches_allow(other)
  }

  fn stronger_than_deny(&self, other: &Self::DenyDesc) -> bool {
    other.0.starts_with(&self.0.resolved)
  }

  fn overlaps_deny(&self, other: &Self::DenyDesc) -> bool {
    self.stronger_than_deny(other)
  }
}

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

#[derive(Clone, Eq, PartialEq, Hash, Debug)]
pub enum Host {
  Fqdn(FQDN),
  Ip(IpAddr),
}

#[derive(Debug, thiserror::Error)]
pub enum HostParseError {
  #[error("invalid IPv6 address: '{0}'")]
  InvalidIpv6(String),
  #[error("invalid host: '{0}'")]
  InvalidHost(String),
  #[error("invalid empty host: '{0}'")]
  InvalidEmptyHost(String),
  #[error("invalid host '{host}': {error}")]
  Fqdn {
    #[source]
    error: fqdn::Error,
    host: String,
  },
}

impl Host {
  fn parse(s: &str) -> Result<Self, HostParseError> {
    if s.starts_with('[') && s.ends_with(']') {
      let ip = s[1..s.len() - 1]
        .parse::<Ipv6Addr>()
        .map_err(|_| HostParseError::InvalidIpv6(s.to_string()))?;
      return Ok(Host::Ip(IpAddr::V6(ip)));
    }
    let (without_trailing_dot, has_trailing_dot) =
      s.strip_suffix('.').map_or((s, false), |s| (s, true));
    if let Ok(ip) = without_trailing_dot.parse::<IpAddr>() {
      if has_trailing_dot {
        return Err(HostParseError::InvalidHost(
          without_trailing_dot.to_string(),
        ));
      }
      Ok(Host::Ip(ip))
    } else {
      let lower = if s.chars().all(|c| c.is_ascii_lowercase()) {
        Cow::Borrowed(s)
      } else {
        Cow::Owned(s.to_ascii_lowercase())
      };
      let fqdn = {
        use std::str::FromStr;
        FQDN::from_str(&lower).map_err(|e| HostParseError::Fqdn {
          error: e,
          host: s.to_string(),
        })?
      };
      if fqdn.is_root() {
        return Err(HostParseError::InvalidEmptyHost(s.to_string()));
      }
      Ok(Host::Fqdn(fqdn))
    }
  }

  #[cfg(test)]
  #[track_caller]
  fn must_parse(s: &str) -> Self {
    Self::parse(s).unwrap()
  }
}

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

impl QueryDescriptor for NetDescriptor {
  type AllowDesc = NetDescriptor;
  type DenyDesc = NetDescriptor;

  fn flag_name() -> &'static str {
    "net"
  }

  fn display_name(&self) -> Cow<str> {
    Cow::from(format!("{}", self))
  }

  fn from_allow(allow: &Self::AllowDesc) -> Self {
    allow.clone()
  }

  fn as_allow(&self) -> Option<Self::AllowDesc> {
    Some(self.clone())
  }

  fn as_deny(&self) -> Self::DenyDesc {
    self.clone()
  }

  fn check_in_permission(
    &self,
    perm: &mut UnaryPermission<Self>,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(perm);
    perm.check_desc(Some(self), false, api_name)
  }

  fn matches_allow(&self, other: &Self::AllowDesc) -> bool {
    self.0 == other.0 && (other.1.is_none() || self.1 == other.1)
  }

  fn matches_deny(&self, other: &Self::DenyDesc) -> bool {
    self.0 == other.0 && (other.1.is_none() || self.1 == other.1)
  }

  fn revokes(&self, other: &Self::AllowDesc) -> bool {
    self.matches_allow(other)
  }

  fn stronger_than_deny(&self, other: &Self::DenyDesc) -> bool {
    self.matches_deny(other)
  }

  fn overlaps_deny(&self, _other: &Self::DenyDesc) -> bool {
    false
  }
}

#[derive(Debug, thiserror::Error)]
pub enum NetDescriptorParseError {
  #[error("invalid value '{0}': URLs are not supported, only domains and ips")]
  Url(String),
  #[error("invalid IPv6 address in '{hostname}': '{ip}'")]
  InvalidIpv6 { hostname: String, ip: String },
  #[error("invalid port in '{hostname}': '{port}'")]
  InvalidPort { hostname: String, port: String },
  #[error("invalid host: '{0}'")]
  InvalidHost(String),
  #[error("invalid empty port in '{0}'")]
  EmptyPort(String),
  #[error("ipv6 addresses must be enclosed in square brackets: '{0}'")]
  Ipv6MissingSquareBrackets(String),
  #[error("{0}")]
  Host(#[from] HostParseError),
}

#[derive(Debug, thiserror::Error)]
pub enum NetDescriptorFromUrlParseError {
  #[error("Missing host in url: '{0}'")]
  MissingHost(Url),
  #[error("{0}")]
  Host(#[from] HostParseError),
}

impl NetDescriptor {
  pub fn parse(hostname: &str) -> Result<Self, NetDescriptorParseError> {
    if hostname.starts_with("http://") || hostname.starts_with("https://") {
      return Err(NetDescriptorParseError::Url(hostname.to_string()));
    }

    // If this is a IPv6 address enclosed in square brackets, parse it as such.
    if hostname.starts_with('[') {
      if let Some((ip, after)) = hostname.split_once(']') {
        let ip = ip[1..].parse::<Ipv6Addr>().map_err(|_| {
          NetDescriptorParseError::InvalidIpv6 {
            hostname: hostname.to_string(),
            ip: ip.to_string(),
          }
        })?;
        let port = if let Some(port) = after.strip_prefix(':') {
          let port = port.parse::<u16>().map_err(|_| {
            NetDescriptorParseError::InvalidPort {
              hostname: hostname.to_string(),
              port: port.to_string(),
            }
          })?;
          Some(port)
        } else if after.is_empty() {
          None
        } else {
          return Err(NetDescriptorParseError::InvalidHost(
            hostname.to_string(),
          ));
        };
        return Ok(NetDescriptor(Host::Ip(IpAddr::V6(ip)), port));
      } else {
        return Err(NetDescriptorParseError::InvalidHost(hostname.to_string()));
      }
    }

    // Otherwise it is an IPv4 address or a FQDN with an optional port.
    let (host, port) = match hostname.split_once(':') {
      Some((_, "")) => {
        return Err(NetDescriptorParseError::EmptyPort(hostname.to_string()));
      }
      Some((host, port)) => (host, port),
      None => (hostname, ""),
    };
    let host = Host::parse(host)?;

    let port = if port.is_empty() {
      None
    } else {
      let port = port.parse::<u16>().map_err(|_| {
        // If the user forgot to enclose an IPv6 address in square brackets, we
        // should give them a hint. There are always at least two colons in an
        // IPv6 address, so this heuristic finds likely a bare IPv6 address.
        if port.contains(':') {
          NetDescriptorParseError::Ipv6MissingSquareBrackets(
            hostname.to_string(),
          )
        } else {
          NetDescriptorParseError::InvalidPort {
            hostname: hostname.to_string(),
            port: port.to_string(),
          }
        }
      })?;
      Some(port)
    };

    Ok(NetDescriptor(host, port))
  }

  pub fn from_url(url: &Url) -> Result<Self, NetDescriptorFromUrlParseError> {
    let host = url.host_str().ok_or_else(|| {
      NetDescriptorFromUrlParseError::MissingHost(url.clone())
    })?;
    let host = Host::parse(host)?;
    let port = url.port_or_known_default();
    Ok(NetDescriptor(host, port))
  }
}

impl fmt::Display for NetDescriptor {
  fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
    match &self.0 {
      Host::Fqdn(fqdn) => write!(f, "{fqdn}"),
      Host::Ip(IpAddr::V4(ip)) => write!(f, "{ip}"),
      Host::Ip(IpAddr::V6(ip)) => write!(f, "[{ip}]"),
    }?;
    if let Some(port) = self.1 {
      write!(f, ":{}", port)?;
    }
    Ok(())
  }
}

#[derive(Clone, Eq, PartialEq, Hash, Debug)]
pub struct ImportDescriptor(NetDescriptor);

impl QueryDescriptor for ImportDescriptor {
  type AllowDesc = ImportDescriptor;
  type DenyDesc = ImportDescriptor;

  fn flag_name() -> &'static str {
    "import"
  }

  fn display_name(&self) -> Cow<str> {
    self.0.display_name()
  }

  fn from_allow(allow: &Self::AllowDesc) -> Self {
    Self(NetDescriptor::from_allow(&allow.0))
  }

  fn as_allow(&self) -> Option<Self::AllowDesc> {
    self.0.as_allow().map(ImportDescriptor)
  }

  fn as_deny(&self) -> Self::DenyDesc {
    Self(self.0.as_deny())
  }

  fn check_in_permission(
    &self,
    perm: &mut UnaryPermission<Self>,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(perm);
    perm.check_desc(Some(self), false, api_name)
  }

  fn matches_allow(&self, other: &Self::AllowDesc) -> bool {
    self.0.matches_allow(&other.0)
  }

  fn matches_deny(&self, other: &Self::DenyDesc) -> bool {
    self.0.matches_deny(&other.0)
  }

  fn revokes(&self, other: &Self::AllowDesc) -> bool {
    self.0.revokes(&other.0)
  }

  fn stronger_than_deny(&self, other: &Self::DenyDesc) -> bool {
    self.0.stronger_than_deny(&other.0)
  }

  fn overlaps_deny(&self, other: &Self::DenyDesc) -> bool {
    self.0.overlaps_deny(&other.0)
  }
}

impl ImportDescriptor {
  pub fn parse(specifier: &str) -> Result<Self, NetDescriptorParseError> {
    Ok(ImportDescriptor(NetDescriptor::parse(specifier)?))
  }

  pub fn from_url(url: &Url) -> Result<Self, NetDescriptorFromUrlParseError> {
    Ok(ImportDescriptor(NetDescriptor::from_url(url)?))
  }
}

#[derive(Debug, thiserror::Error)]
#[error("Empty env not allowed")]
pub struct EnvDescriptorParseError;

#[derive(Clone, Eq, PartialEq, Hash, Debug)]
pub enum EnvDescriptor {
  Name(EnvVarName),
  PrefixPattern(EnvVarName),
}

impl EnvDescriptor {
  pub fn new(env: impl AsRef<str>) -> Self {
    if let Some(prefix_pattern) = env.as_ref().strip_suffix('*') {
      Self::PrefixPattern(EnvVarName::new(prefix_pattern))
    } else {
      Self::Name(EnvVarName::new(env))
    }
  }
}

#[derive(Clone, Eq, PartialEq, Hash, Debug)]
enum EnvQueryDescriptorInner {
  Name(EnvVarName),
  PrefixPattern(EnvVarName),
}

#[derive(Clone, Eq, PartialEq, Hash, Debug)]
pub struct EnvQueryDescriptor(EnvQueryDescriptorInner);

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

impl QueryDescriptor for EnvQueryDescriptor {
  type AllowDesc = EnvDescriptor;
  type DenyDesc = EnvDescriptor;

  fn flag_name() -> &'static str {
    "env"
  }

  fn display_name(&self) -> Cow<str> {
    Cow::from(match &self.0 {
      EnvQueryDescriptorInner::Name(env_var_name) => env_var_name.as_ref(),
      EnvQueryDescriptorInner::PrefixPattern(env_var_name) => {
        env_var_name.as_ref()
      }
    })
  }

  fn from_allow(allow: &Self::AllowDesc) -> Self {
    match allow {
      Self::AllowDesc::Name(s) => {
        Self(EnvQueryDescriptorInner::Name(s.clone()))
      }
      Self::AllowDesc::PrefixPattern(s) => {
        Self(EnvQueryDescriptorInner::PrefixPattern(s.clone()))
      }
    }
  }

  fn as_allow(&self) -> Option<Self::AllowDesc> {
    Some(match &self.0 {
      EnvQueryDescriptorInner::Name(env_var_name) => {
        Self::AllowDesc::Name(env_var_name.clone())
      }
      EnvQueryDescriptorInner::PrefixPattern(env_var_name) => {
        Self::AllowDesc::PrefixPattern(env_var_name.clone())
      }
    })
  }

  fn as_deny(&self) -> Self::DenyDesc {
    match &self.0 {
      EnvQueryDescriptorInner::Name(env_var_name) => {
        Self::DenyDesc::Name(env_var_name.clone())
      }
      EnvQueryDescriptorInner::PrefixPattern(env_var_name) => {
        Self::DenyDesc::PrefixPattern(env_var_name.clone())
      }
    }
  }

  fn check_in_permission(
    &self,
    perm: &mut UnaryPermission<Self>,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(perm);
    perm.check_desc(Some(self), false, api_name)
  }

  fn matches_allow(&self, other: &Self::AllowDesc) -> bool {
    match other {
      Self::AllowDesc::Name(n) => match &self.0 {
        EnvQueryDescriptorInner::Name(env_var_name) => n == env_var_name,
        EnvQueryDescriptorInner::PrefixPattern(env_var_name) => {
          env_var_name.as_ref().starts_with(n.as_ref())
        }
      },
      Self::AllowDesc::PrefixPattern(p) => match &self.0 {
        EnvQueryDescriptorInner::Name(env_var_name) => {
          env_var_name.as_ref().starts_with(p.as_ref())
        }
        EnvQueryDescriptorInner::PrefixPattern(env_var_name) => {
          env_var_name.as_ref().starts_with(p.as_ref())
        }
      },
    }
  }

  fn matches_deny(&self, other: &Self::DenyDesc) -> bool {
    match other {
      Self::AllowDesc::Name(n) => match &self.0 {
        EnvQueryDescriptorInner::Name(env_var_name) => n == env_var_name,
        EnvQueryDescriptorInner::PrefixPattern(env_var_name) => {
          env_var_name.as_ref().starts_with(n.as_ref())
        }
      },
      Self::AllowDesc::PrefixPattern(p) => match &self.0 {
        EnvQueryDescriptorInner::Name(env_var_name) => {
          env_var_name.as_ref().starts_with(p.as_ref())
        }
        EnvQueryDescriptorInner::PrefixPattern(env_var_name) => {
          p == env_var_name
        }
      },
    }
  }

  fn revokes(&self, other: &Self::AllowDesc) -> bool {
    match other {
      Self::AllowDesc::Name(n) => match &self.0 {
        EnvQueryDescriptorInner::Name(env_var_name) => n == env_var_name,
        EnvQueryDescriptorInner::PrefixPattern(env_var_name) => {
          env_var_name.as_ref().starts_with(n.as_ref())
        }
      },
      Self::AllowDesc::PrefixPattern(p) => match &self.0 {
        EnvQueryDescriptorInner::Name(env_var_name) => {
          env_var_name.as_ref().starts_with(p.as_ref())
        }
        EnvQueryDescriptorInner::PrefixPattern(env_var_name) => {
          p == env_var_name
        }
      },
    }
  }

  fn stronger_than_deny(&self, other: &Self::DenyDesc) -> bool {
    match other {
      Self::AllowDesc::Name(n) => match &self.0 {
        EnvQueryDescriptorInner::Name(env_var_name) => n == env_var_name,
        EnvQueryDescriptorInner::PrefixPattern(env_var_name) => {
          env_var_name.as_ref().starts_with(n.as_ref())
        }
      },
      Self::AllowDesc::PrefixPattern(p) => match &self.0 {
        EnvQueryDescriptorInner::Name(env_var_name) => {
          env_var_name.as_ref().starts_with(p.as_ref())
        }
        EnvQueryDescriptorInner::PrefixPattern(env_var_name) => {
          p == env_var_name
        }
      },
    }
  }

  fn overlaps_deny(&self, _other: &Self::DenyDesc) -> bool {
    false
  }
}

impl AsRef<str> for EnvQueryDescriptor {
  fn as_ref(&self) -> &str {
    match &self.0 {
      EnvQueryDescriptorInner::Name(env_var_name) => env_var_name.as_ref(),
      EnvQueryDescriptorInner::PrefixPattern(env_var_name) => {
        env_var_name.as_ref()
      }
    }
  }
}

#[derive(Clone, Eq, PartialEq, Hash, Debug, Serialize, Deserialize)]
pub enum RunQueryDescriptor {
  Path {
    requested: String,
    resolved: PathBuf,
  },
  /// This variant won't actually grant permissions because the path of
  /// the executable is unresolved. It's mostly used so that prompts and
  /// everything works the same way as when the command is resolved,
  /// meaning that a script can't tell
  /// if a command is resolved or not based on how long something
  /// takes to ask for permissions.
  Name(String),
}

#[derive(Debug, thiserror::Error)]
pub enum PathResolveError {
  #[error("failed resolving cwd: {0}")]
  CwdResolve(#[source] std::io::Error),
  #[error("Empty path is not allowed")]
  EmptyPath,
}

impl RunQueryDescriptor {
  pub fn parse(
    requested: &str,
  ) -> Result<RunQueryDescriptor, PathResolveError> {
    if is_path(requested) {
      let path = PathBuf::from(requested);
      let resolved = if path.is_absolute() {
        normalize_path(path)
      } else {
        let cwd =
          std::env::current_dir().map_err(PathResolveError::CwdResolve)?;
        normalize_path(cwd.join(path))
      };
      Ok(RunQueryDescriptor::Path {
        requested: requested.to_string(),
        resolved,
      })
    } else {
      match which::which(requested) {
        Ok(resolved) => Ok(RunQueryDescriptor::Path {
          requested: requested.to_string(),
          resolved,
        }),
        Err(_) => Ok(RunQueryDescriptor::Name(requested.to_string())),
      }
    }
  }
}

impl QueryDescriptor for RunQueryDescriptor {
  type AllowDesc = AllowRunDescriptor;
  type DenyDesc = DenyRunDescriptor;

  fn flag_name() -> &'static str {
    "run"
  }

  fn display_name(&self) -> Cow<str> {
    match self {
      RunQueryDescriptor::Path { requested, .. } => Cow::Borrowed(requested),
      RunQueryDescriptor::Name(name) => Cow::Borrowed(name),
    }
  }

  fn from_allow(allow: &Self::AllowDesc) -> Self {
    RunQueryDescriptor::Path {
      requested: allow.0.to_string_lossy().into_owned(),
      resolved: allow.0.clone(),
    }
  }

  fn as_allow(&self) -> Option<Self::AllowDesc> {
    match self {
      RunQueryDescriptor::Path { resolved, .. } => {
        Some(AllowRunDescriptor(resolved.clone()))
      }
      RunQueryDescriptor::Name(_) => None,
    }
  }

  fn as_deny(&self) -> Self::DenyDesc {
    match self {
      RunQueryDescriptor::Path {
        resolved,
        requested,
      } => {
        if requested.contains('/')
          || (cfg!(windows) && requested.contains("\\"))
        {
          DenyRunDescriptor::Path(resolved.clone())
        } else {
          DenyRunDescriptor::Name(requested.clone())
        }
      }
      RunQueryDescriptor::Name(name) => DenyRunDescriptor::Name(name.clone()),
    }
  }

  fn check_in_permission(
    &self,
    perm: &mut UnaryPermission<Self>,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(perm);
    perm.check_desc(Some(self), false, api_name)
  }

  fn matches_allow(&self, other: &Self::AllowDesc) -> bool {
    match self {
      RunQueryDescriptor::Path { resolved, .. } => *resolved == other.0,
      RunQueryDescriptor::Name(_) => false,
    }
  }

  fn matches_deny(&self, other: &Self::DenyDesc) -> bool {
    match other {
      DenyRunDescriptor::Name(deny_desc) => match self {
        RunQueryDescriptor::Path { resolved, .. } => {
          denies_run_name(deny_desc, resolved)
        }
        RunQueryDescriptor::Name(query) => query == deny_desc,
      },
      DenyRunDescriptor::Path(deny_desc) => match self {
        RunQueryDescriptor::Path { resolved, .. } => {
          resolved.starts_with(deny_desc)
        }
        RunQueryDescriptor::Name(query) => denies_run_name(query, deny_desc),
      },
    }
  }

  fn revokes(&self, other: &Self::AllowDesc) -> bool {
    match self {
      RunQueryDescriptor::Path {
        resolved,
        requested,
      } => {
        if *resolved == other.0 {
          return true;
        }
        if is_path(requested) {
          false
        } else {
          denies_run_name(requested, &other.0)
        }
      }
      RunQueryDescriptor::Name(query) => denies_run_name(query, &other.0),
    }
  }

  fn stronger_than_deny(&self, other: &Self::DenyDesc) -> bool {
    self.matches_deny(other)
  }

  fn overlaps_deny(&self, _other: &Self::DenyDesc) -> bool {
    false
  }
}

pub enum RunDescriptorArg {
  Name(String),
  Path(PathBuf),
}

pub enum AllowRunDescriptorParseResult {
  /// An error occured getting the descriptor that should
  /// be surfaced as a warning when launching deno, but should
  /// be ignored when creating a worker.
  Unresolved(Box<which::Error>),
  Descriptor(AllowRunDescriptor),
}

#[derive(Debug, thiserror::Error)]
pub enum RunDescriptorParseError {
  #[error("{0}")]
  Which(#[from] which::Error),
  #[error("{0}")]
  PathResolve(#[from] PathResolveError),
  #[error("Empty run query is not allowed")]
  EmptyRunQuery,
}

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

impl AllowRunDescriptor {
  pub fn parse(
    text: &str,
    cwd: &Path,
  ) -> Result<AllowRunDescriptorParseResult, which::Error> {
    let is_path = is_path(text);
    // todo(dsherret): canonicalize in #25458
    let path = if is_path {
      resolve_from_known_cwd(Path::new(text), cwd)
    } else {
      match which::which_in(text, std::env::var_os("PATH"), cwd) {
        Ok(path) => path,
        Err(err) => match err {
          which::Error::BadAbsolutePath | which::Error::BadRelativePath => {
            return Err(err);
          }
          which::Error::CannotFindBinaryPath
          | which::Error::CannotGetCurrentDir
          | which::Error::CannotCanonicalize => {
            return Ok(AllowRunDescriptorParseResult::Unresolved(Box::new(err)))
          }
        },
      }
    };
    Ok(AllowRunDescriptorParseResult::Descriptor(
      AllowRunDescriptor(path),
    ))
  }
}

#[derive(Clone, Eq, PartialEq, Hash, Debug)]
pub enum DenyRunDescriptor {
  /// Warning: You may want to construct with `RunDescriptor::from()` for case
  /// handling.
  Name(String),
  /// Warning: You may want to construct with `RunDescriptor::from()` for case
  /// handling.
  Path(PathBuf),
}

impl DenyRunDescriptor {
  pub fn parse(text: &str, cwd: &Path) -> Self {
    if text.contains('/') || cfg!(windows) && text.contains('\\') {
      let path = resolve_from_known_cwd(Path::new(&text), cwd);
      DenyRunDescriptor::Path(path)
    } else {
      DenyRunDescriptor::Name(text.to_string())
    }
  }
}

fn is_path(text: &str) -> bool {
  if cfg!(windows) {
    text.contains('/') || text.contains('\\') || Path::new(text).is_absolute()
  } else {
    text.contains('/')
  }
}

fn denies_run_name(name: &str, cmd_path: &Path) -> bool {
  let Some(file_stem) = cmd_path.file_stem() else {
    return false;
  };
  let Some(file_stem) = file_stem.to_str() else {
    return false;
  };
  if file_stem.len() < name.len() {
    return false;
  }
  let (prefix, suffix) = file_stem.split_at(name.len());
  if !prefix.eq_ignore_ascii_case(name) {
    return false;
  }
  // be broad and consider anything like `deno.something` as matching deny perms
  suffix.is_empty() || suffix.starts_with('.')
}

#[derive(Debug, thiserror::Error)]
pub enum SysDescriptorParseError {
  #[error("unknown system info kind \"{0}\"")]
  InvalidKind(String), // TypeError
  #[error("Empty sys not allowed")]
  Empty, // Error
}

#[derive(Clone, Eq, PartialEq, Hash, Debug)]
pub struct SysDescriptor(String);

impl SysDescriptor {
  pub fn parse(kind: String) -> Result<Self, SysDescriptorParseError> {
    match kind.as_str() {
      "hostname" | "inspector" | "osRelease" | "osUptime" | "loadavg"
      | "networkInterfaces" | "systemMemoryInfo" | "uid" | "gid" | "cpus"
      | "homedir" | "getegid" | "statfs" | "getPriority" | "setPriority"
      | "userInfo" => Ok(Self(kind)),

      // the underlying permission check changed to `userInfo` to better match the API,
      // alias this to avoid breaking existing projects with `--allow-sys=username`
      "username" => Ok(Self("userInfo".into())),
      _ => Err(SysDescriptorParseError::InvalidKind(kind)),
    }
  }

  pub fn into_string(self) -> String {
    self.0
  }
}

impl QueryDescriptor for SysDescriptor {
  type AllowDesc = SysDescriptor;
  type DenyDesc = SysDescriptor;

  fn flag_name() -> &'static str {
    "sys"
  }

  fn display_name(&self) -> Cow<str> {
    Cow::from(self.0.to_string())
  }

  fn from_allow(allow: &Self::AllowDesc) -> Self {
    allow.clone()
  }

  fn as_allow(&self) -> Option<Self::AllowDesc> {
    Some(self.clone())
  }

  fn as_deny(&self) -> Self::DenyDesc {
    self.clone()
  }

  fn check_in_permission(
    &self,
    perm: &mut UnaryPermission<Self>,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(perm);
    perm.check_desc(Some(self), false, api_name)
  }

  fn matches_allow(&self, other: &Self::AllowDesc) -> bool {
    self == other
  }

  fn matches_deny(&self, other: &Self::DenyDesc) -> bool {
    self == other
  }

  fn revokes(&self, other: &Self::AllowDesc) -> bool {
    self == other
  }

  fn stronger_than_deny(&self, other: &Self::DenyDesc) -> bool {
    self == other
  }

  fn overlaps_deny(&self, _other: &Self::DenyDesc) -> bool {
    false
  }
}

#[derive(Clone, Eq, PartialEq, Hash, Debug)]
pub struct FfiQueryDescriptor(pub PathQueryDescriptor);

impl QueryDescriptor for FfiQueryDescriptor {
  type AllowDesc = FfiDescriptor;
  type DenyDesc = FfiDescriptor;

  fn flag_name() -> &'static str {
    "ffi"
  }

  fn display_name(&self) -> Cow<str> {
    Cow::Borrowed(&self.0.requested)
  }

  fn from_allow(allow: &Self::AllowDesc) -> Self {
    PathQueryDescriptor {
      requested: allow.0.to_string_lossy().into_owned(),
      resolved: allow.0.clone(),
    }
    .into_ffi()
  }

  fn as_allow(&self) -> Option<Self::AllowDesc> {
    Some(FfiDescriptor(self.0.resolved.clone()))
  }

  fn as_deny(&self) -> Self::DenyDesc {
    FfiDescriptor(self.0.resolved.clone())
  }

  fn check_in_permission(
    &self,
    perm: &mut UnaryPermission<Self>,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(perm);
    perm.check_desc(Some(self), true, api_name)
  }

  fn matches_allow(&self, other: &Self::AllowDesc) -> bool {
    self.0.resolved.starts_with(&other.0)
  }

  fn matches_deny(&self, other: &Self::DenyDesc) -> bool {
    self.0.resolved.starts_with(&other.0)
  }

  fn revokes(&self, other: &Self::AllowDesc) -> bool {
    self.matches_allow(other)
  }

  fn stronger_than_deny(&self, other: &Self::DenyDesc) -> bool {
    other.0.starts_with(&self.0.resolved)
  }

  fn overlaps_deny(&self, other: &Self::DenyDesc) -> bool {
    self.stronger_than_deny(other)
  }
}

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

impl UnaryPermission<ReadQueryDescriptor> {
  pub fn query(&self, desc: Option<&ReadQueryDescriptor>) -> PermissionState {
    self.query_desc(desc, AllowPartial::TreatAsPartialGranted)
  }

  pub fn request(
    &mut self,
    path: Option<&ReadQueryDescriptor>,
  ) -> PermissionState {
    self.request_desc(path)
  }

  pub fn revoke(
    &mut self,
    desc: Option<&ReadQueryDescriptor>,
  ) -> PermissionState {
    self.revoke_desc(desc)
  }

  pub fn check(
    &mut self,
    desc: &ReadQueryDescriptor,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(self);
    self.check_desc(Some(desc), true, api_name)
  }

  #[inline]
  pub fn check_partial(
    &mut self,
    desc: &ReadQueryDescriptor,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(self);
    self.check_desc(Some(desc), false, api_name)
  }

  pub fn check_all(
    &mut self,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(self);
    self.check_desc(None, false, api_name)
  }
}

impl UnaryPermission<WriteQueryDescriptor> {
  pub fn query(&self, path: Option<&WriteQueryDescriptor>) -> PermissionState {
    self.query_desc(path, AllowPartial::TreatAsPartialGranted)
  }

  pub fn request(
    &mut self,
    path: Option<&WriteQueryDescriptor>,
  ) -> PermissionState {
    self.request_desc(path)
  }

  pub fn revoke(
    &mut self,
    path: Option<&WriteQueryDescriptor>,
  ) -> PermissionState {
    self.revoke_desc(path)
  }

  pub fn check(
    &mut self,
    path: &WriteQueryDescriptor,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(self);
    self.check_desc(Some(path), true, api_name)
  }

  #[inline]
  pub fn check_partial(
    &mut self,
    path: &WriteQueryDescriptor,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(self);
    self.check_desc(Some(path), false, api_name)
  }

  pub fn check_all(
    &mut self,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(self);
    self.check_desc(None, false, api_name)
  }
}

impl UnaryPermission<NetDescriptor> {
  pub fn query(&self, host: Option<&NetDescriptor>) -> PermissionState {
    self.query_desc(host, AllowPartial::TreatAsPartialGranted)
  }

  pub fn request(&mut self, host: Option<&NetDescriptor>) -> PermissionState {
    self.request_desc(host)
  }

  pub fn revoke(&mut self, host: Option<&NetDescriptor>) -> PermissionState {
    self.revoke_desc(host)
  }

  pub fn check(
    &mut self,
    host: &NetDescriptor,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(self);
    self.check_desc(Some(host), false, api_name)
  }

  pub fn check_all(&mut self) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(self);
    self.check_desc(None, false, None)
  }
}

impl UnaryPermission<ImportDescriptor> {
  pub fn query(&self, host: Option<&ImportDescriptor>) -> PermissionState {
    self.query_desc(host, AllowPartial::TreatAsPartialGranted)
  }

  pub fn request(
    &mut self,
    host: Option<&ImportDescriptor>,
  ) -> PermissionState {
    self.request_desc(host)
  }

  pub fn revoke(&mut self, host: Option<&ImportDescriptor>) -> PermissionState {
    self.revoke_desc(host)
  }

  pub fn check(
    &mut self,
    host: &ImportDescriptor,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(self);
    self.check_desc(Some(host), false, api_name)
  }

  pub fn check_all(&mut self) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(self);
    self.check_desc(None, false, None)
  }
}

impl UnaryPermission<EnvQueryDescriptor> {
  pub fn query(&self, env: Option<&str>) -> PermissionState {
    self.query_desc(
      env.map(EnvQueryDescriptor::new).as_ref(),
      AllowPartial::TreatAsPartialGranted,
    )
  }

  pub fn request(&mut self, env: Option<&str>) -> PermissionState {
    self.request_desc(env.map(EnvQueryDescriptor::new).as_ref())
  }

  pub fn revoke(&mut self, env: Option<&str>) -> PermissionState {
    self.revoke_desc(env.map(EnvQueryDescriptor::new).as_ref())
  }

  pub fn check(
    &mut self,
    env: &str,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(self);
    self.check_desc(Some(&EnvQueryDescriptor::new(env)), false, api_name)
  }

  pub fn check_all(&mut self) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(self);
    self.check_desc(None, false, None)
  }
}

impl UnaryPermission<SysDescriptor> {
  pub fn query(&self, kind: Option<&SysDescriptor>) -> PermissionState {
    self.query_desc(kind, AllowPartial::TreatAsPartialGranted)
  }

  pub fn request(&mut self, kind: Option<&SysDescriptor>) -> PermissionState {
    self.request_desc(kind)
  }

  pub fn revoke(&mut self, kind: Option<&SysDescriptor>) -> PermissionState {
    self.revoke_desc(kind)
  }

  pub fn check(
    &mut self,
    kind: &SysDescriptor,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(self);
    self.check_desc(Some(kind), false, api_name)
  }

  pub fn check_all(&mut self) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(self);
    self.check_desc(None, false, None)
  }
}

impl UnaryPermission<RunQueryDescriptor> {
  pub fn query(&self, cmd: Option<&RunQueryDescriptor>) -> PermissionState {
    self.query_desc(cmd, AllowPartial::TreatAsPartialGranted)
  }

  pub fn request(
    &mut self,
    cmd: Option<&RunQueryDescriptor>,
  ) -> PermissionState {
    self.request_desc(cmd)
  }

  pub fn revoke(
    &mut self,
    cmd: Option<&RunQueryDescriptor>,
  ) -> PermissionState {
    self.revoke_desc(cmd)
  }

  pub fn check(
    &mut self,
    cmd: &RunQueryDescriptor,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    self.check_desc(Some(cmd), false, api_name)
  }

  pub fn check_all(
    &mut self,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    self.check_desc(None, false, api_name)
  }

  /// Queries without prompting
  pub fn query_all(&mut self, api_name: Option<&str>) -> bool {
    if self.is_allow_all() {
      return true;
    }
    let (result, _prompted, _is_allow_all) =
      self.query_desc(None, AllowPartial::TreatAsDenied).check2(
        RunQueryDescriptor::flag_name(),
        api_name,
        || None,
        /* prompt */ false,
      );
    result.is_ok()
  }
}

impl UnaryPermission<FfiQueryDescriptor> {
  pub fn query(&self, path: Option<&FfiQueryDescriptor>) -> PermissionState {
    self.query_desc(path, AllowPartial::TreatAsPartialGranted)
  }

  pub fn request(
    &mut self,
    path: Option<&FfiQueryDescriptor>,
  ) -> PermissionState {
    self.request_desc(path)
  }

  pub fn revoke(
    &mut self,
    path: Option<&FfiQueryDescriptor>,
  ) -> PermissionState {
    self.revoke_desc(path)
  }

  pub fn check(
    &mut self,
    path: &FfiQueryDescriptor,
    api_name: Option<&str>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(self);
    self.check_desc(Some(path), true, api_name)
  }

  pub fn check_partial(
    &mut self,
    path: Option<&FfiQueryDescriptor>,
  ) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(self);
    self.check_desc(path, false, None)
  }

  pub fn check_all(&mut self) -> Result<(), PermissionDeniedError> {
    skip_check_if_is_permission_fully_granted!(self);
    self.check_desc(None, false, Some("all"))
  }
}

#[derive(Clone, Debug, Eq, PartialEq)]
pub struct Permissions {
  pub read: UnaryPermission<ReadQueryDescriptor>,
  pub write: UnaryPermission<WriteQueryDescriptor>,
  pub net: UnaryPermission<NetDescriptor>,
  pub env: UnaryPermission<EnvQueryDescriptor>,
  pub sys: UnaryPermission<SysDescriptor>,
  pub run: UnaryPermission<RunQueryDescriptor>,
  pub ffi: UnaryPermission<FfiQueryDescriptor>,
  pub import: UnaryPermission<ImportDescriptor>,
  pub all: UnitPermission,
}

#[derive(Clone, Debug, Eq, PartialEq, Default, Serialize, Deserialize)]
pub struct PermissionsOptions {
  pub allow_all: bool,
  pub allow_env: Option<Vec<String>>,
  pub deny_env: Option<Vec<String>>,
  pub allow_net: Option<Vec<String>>,
  pub deny_net: Option<Vec<String>>,
  pub allow_ffi: Option<Vec<String>>,
  pub deny_ffi: Option<Vec<String>>,
  pub allow_read: Option<Vec<String>>,
  pub deny_read: Option<Vec<String>>,
  pub allow_run: Option<Vec<String>>,
  pub deny_run: Option<Vec<String>>,
  pub allow_sys: Option<Vec<String>>,
  pub deny_sys: Option<Vec<String>>,
  pub allow_write: Option<Vec<String>>,
  pub deny_write: Option<Vec<String>>,
  pub allow_import: Option<Vec<String>>,
  pub prompt: bool,
}

#[derive(Debug, thiserror::Error)]
pub enum PermissionsFromOptionsError {
  #[error("{0}")]
  PathResolve(#[from] PathResolveError),
  #[error("{0}")]
  SysDescriptorParse(#[from] SysDescriptorParseError),
  #[error("{0}")]
  NetDescriptorParse(#[from] NetDescriptorParseError),
  #[error("{0}")]
  EnvDescriptorParse(#[from] EnvDescriptorParseError),
  #[error("{0}")]
  RunDescriptorParse(#[from] RunDescriptorParseError),
  #[error("Empty command name not allowed in --allow-run=...")]
  RunEmptyCommandName,
}

impl Permissions {
  pub fn new_unary<TQuery>(
    allow_list: Option<HashSet<TQuery::AllowDesc>>,
    deny_list: Option<HashSet<TQuery::DenyDesc>>,
    prompt: bool,
  ) -> UnaryPermission<TQuery>
  where
    TQuery: QueryDescriptor,
  {
    UnaryPermission::<TQuery> {
      granted_global: global_from_option(allow_list.as_ref()),
      granted_list: allow_list.unwrap_or_default(),
      flag_denied_global: global_from_option(deny_list.as_ref()),
      flag_denied_list: deny_list.unwrap_or_default(),
      prompt,
      ..Default::default()
    }
  }

  pub const fn new_all(allow_state: bool) -> UnitPermission {
    unit_permission_from_flag_bools(
      allow_state,
      false,
      "all",
      "all",
      false, // never prompt for all
    )
  }

  pub fn from_options(
    parser: &dyn PermissionDescriptorParser,
    opts: &PermissionsOptions,
  ) -> Result<Self, PermissionsFromOptionsError> {
    fn resolve_allow_run(
      parser: &dyn PermissionDescriptorParser,
      allow_run: &[String],
    ) -> Result<HashSet<AllowRunDescriptor>, PermissionsFromOptionsError> {
      let mut new_allow_run = HashSet::with_capacity(allow_run.len());
      for unresolved in allow_run {
        if unresolved.is_empty() {
          return Err(PermissionsFromOptionsError::RunEmptyCommandName);
        }
        match parser.parse_allow_run_descriptor(unresolved)? {
          AllowRunDescriptorParseResult::Descriptor(descriptor) => {
            new_allow_run.insert(descriptor);
          }
          AllowRunDescriptorParseResult::Unresolved(err) => {
            log::info!(
              "{} Failed to resolve '{}' for allow-run: {}",
              colors::gray("Info"),
              unresolved,
              err
            );
          }
        }
      }
      Ok(new_allow_run)
    }

    fn parse_maybe_vec<T: Eq + PartialEq + Hash, E>(
      items: Option<&[String]>,
      parse: impl Fn(&str) -> Result<T, E>,
    ) -> Result<Option<HashSet<T>>, PermissionsFromOptionsError>
    where
      PermissionsFromOptionsError: From<E>,
    {
      match items {
        Some(items) => Ok(Some(
          items
            .iter()
            .map(|item| parse(item))
            .collect::<Result<HashSet<_>, _>>()?,
        )),
        None => Ok(None),
      }
    }

    let mut deny_write = parse_maybe_vec(opts.deny_write.as_deref(), |item| {
      parser.parse_write_descriptor(item)
    })?;
    let allow_run = opts
      .allow_run
      .as_ref()
      .and_then(|raw_allow_run| {
        match resolve_allow_run(parser, raw_allow_run) {
          Ok(resolved_allow_run) => {
            if resolved_allow_run.is_empty() && !raw_allow_run.is_empty() {
              None // convert to no permissions if now empty
            } else {
              Some(Ok(resolved_allow_run))
            }
          }
          Err(err) => Some(Err(err)),
        }
      })
      .transpose()?;
    // add the allow_run list to deny_write
    if let Some(allow_run_vec) = &allow_run {
      if !allow_run_vec.is_empty() {
        let deny_write = deny_write.get_or_insert_with(Default::default);
        deny_write.extend(
          allow_run_vec
            .iter()
            .map(|item| WriteDescriptor(item.0.clone())),
        );
      }
    }

    Ok(Self {
      read: Permissions::new_unary(
        parse_maybe_vec(opts.allow_read.as_deref(), |item| {
          parser.parse_read_descriptor(item)
        })?,
        parse_maybe_vec(opts.deny_read.as_deref(), |item| {
          parser.parse_read_descriptor(item)
        })?,
        opts.prompt,
      ),
      write: Permissions::new_unary(
        parse_maybe_vec(opts.allow_write.as_deref(), |item| {
          parser.parse_write_descriptor(item)
        })?,
        deny_write,
        opts.prompt,
      ),
      net: Permissions::new_unary(
        parse_maybe_vec(opts.allow_net.as_deref(), |item| {
          parser.parse_net_descriptor(item)
        })?,
        parse_maybe_vec(opts.deny_net.as_deref(), |item| {
          parser.parse_net_descriptor(item)
        })?,
        opts.prompt,
      ),
      env: Permissions::new_unary(
        parse_maybe_vec(opts.allow_env.as_deref(), |item| {
          parser.parse_env_descriptor(item)
        })?,
        parse_maybe_vec(opts.deny_env.as_deref(), |text| {
          parser.parse_env_descriptor(text)
        })?,
        opts.prompt,
      ),
      sys: Permissions::new_unary(
        parse_maybe_vec(opts.allow_sys.as_deref(), |text| {
          parser.parse_sys_descriptor(text)
        })?,
        parse_maybe_vec(opts.deny_sys.as_deref(), |text| {
          parser.parse_sys_descriptor(text)
        })?,
        opts.prompt,
      ),
      run: Permissions::new_unary(
        allow_run,
        parse_maybe_vec(opts.deny_run.as_deref(), |text| {
          parser.parse_deny_run_descriptor(text)
        })?,
        opts.prompt,
      ),
      ffi: Permissions::new_unary(
        parse_maybe_vec(opts.allow_ffi.as_deref(), |text| {
          parser.parse_ffi_descriptor(text)
        })?,
        parse_maybe_vec(opts.deny_ffi.as_deref(), |text| {
          parser.parse_ffi_descriptor(text)
        })?,
        opts.prompt,
      ),
      import: Permissions::new_unary(
        parse_maybe_vec(opts.allow_import.as_deref(), |item| {
          parser.parse_import_descriptor(item)
        })?,
        None,
        opts.prompt,
      ),
      all: Permissions::new_all(opts.allow_all),
    })
  }

  /// Create a set of permissions that explicitly allow everything.
  pub fn allow_all() -> Self {
    Self {
      read: UnaryPermission::allow_all(),
      write: UnaryPermission::allow_all(),
      net: UnaryPermission::allow_all(),
      env: UnaryPermission::allow_all(),
      sys: UnaryPermission::allow_all(),
      run: UnaryPermission::allow_all(),
      ffi: UnaryPermission::allow_all(),
      import: UnaryPermission::allow_all(),
      all: Permissions::new_all(true),
    }
  }

  /// Create a set of permissions that enable nothing, but will allow prompting.
  pub fn none_with_prompt() -> Self {
    Self::none(true)
  }

  /// Create a set of permissions that enable nothing, and will not allow prompting.
  pub fn none_without_prompt() -> Self {
    Self::none(false)
  }

  fn none(prompt: bool) -> Self {
    Self {
      read: Permissions::new_unary(None, None, prompt),
      write: Permissions::new_unary(None, None, prompt),
      net: Permissions::new_unary(None, None, prompt),
      env: Permissions::new_unary(None, None, prompt),
      sys: Permissions::new_unary(None, None, prompt),
      run: Permissions::new_unary(None, None, prompt),
      ffi: Permissions::new_unary(None, None, prompt),
      import: Permissions::new_unary(None, None, prompt),
      all: Permissions::new_all(false),
    }
  }
}

#[derive(Debug, Clone, Copy, Eq, PartialEq)]
pub enum CheckSpecifierKind {
  Static,
  Dynamic,
}

#[derive(Debug, thiserror::Error)]
pub enum ChildPermissionError {
  #[error("Can't escalate parent thread permissions")]
  Escalation,
  #[error("{0}")]
  PathResolve(#[from] PathResolveError),
  #[error("{0}")]
  NetDescriptorParse(#[from] NetDescriptorParseError),
  #[error("{0}")]
  EnvDescriptorParse(#[from] EnvDescriptorParseError),
  #[error("{0}")]
  SysDescriptorParse(#[from] SysDescriptorParseError),
  #[error("{0}")]
  RunDescriptorParse(#[from] RunDescriptorParseError),
}

#[derive(Debug, thiserror::Error)]
pub enum PermissionCheckError {
  #[error(transparent)]
  PermissionDenied(#[from] PermissionDeniedError),
  #[error("Invalid file path.\n  Specifier: {0}")]
  InvalidFilePath(Url),
  #[error(transparent)]
  NetDescriptorForUrlParse(#[from] NetDescriptorFromUrlParseError),
  #[error(transparent)]
  SysDescriptorParse(#[from] SysDescriptorParseError),
  #[error(transparent)]
  PathResolve(#[from] PathResolveError),
  #[error(transparent)]
  HostParse(#[from] HostParseError),
}

/// Wrapper struct for `Permissions` that can be shared across threads.
///
/// We need a way to have internal mutability for permissions as they might get
/// passed to a future that will prompt the user for permission (and in such
/// case might need to be mutated). Also for the Web Worker API we need a way
/// to send permissions to a new thread.
#[derive(Clone, Debug)]
pub struct PermissionsContainer {
  descriptor_parser: Arc<dyn PermissionDescriptorParser>,
  inner: Arc<Mutex<Permissions>>,
}

impl PermissionsContainer {
  pub fn new(
    descriptor_parser: Arc<dyn PermissionDescriptorParser>,
    perms: Permissions,
  ) -> Self {
    Self {
      descriptor_parser,
      inner: Arc::new(Mutex::new(perms)),
    }
  }

  pub fn allow_all(
    descriptor_parser: Arc<dyn PermissionDescriptorParser>,
  ) -> Self {
    Self::new(descriptor_parser, Permissions::allow_all())
  }

  pub fn create_child_permissions(
    &self,
    child_permissions_arg: ChildPermissionsArg,
  ) -> Result<PermissionsContainer, ChildPermissionError> {
    fn is_granted_unary(arg: &ChildUnaryPermissionArg) -> bool {
      match arg {
        ChildUnaryPermissionArg::Inherit | ChildUnaryPermissionArg::Granted => {
          true
        }
        ChildUnaryPermissionArg::NotGranted
        | ChildUnaryPermissionArg::GrantedList(_) => false,
      }
    }

    let mut worker_perms = Permissions::none_without_prompt();

    let mut inner = self.inner.lock();
    worker_perms.all = inner
      .all
      .create_child_permissions(ChildUnitPermissionArg::Inherit)?;

    // downgrade the `worker_perms.all` based on the other values
    if worker_perms.all.query() == PermissionState::Granted {
      let unary_perms = [
        &child_permissions_arg.read,
        &child_permissions_arg.write,
        &child_permissions_arg.net,
        &child_permissions_arg.import,
        &child_permissions_arg.env,
        &child_permissions_arg.sys,
        &child_permissions_arg.run,
        &child_permissions_arg.ffi,
      ];
      let allow_all = unary_perms.into_iter().all(is_granted_unary);
      if !allow_all {
        worker_perms.all.revoke();
      }
    }

    // WARNING: When adding a permission here, ensure it is handled
    // in the worker_perms.all block above
    worker_perms.read = inner.read.create_child_permissions(
      child_permissions_arg.read,
      |text| {
        Ok::<_, PathResolveError>(Some(
          self.descriptor_parser.parse_read_descriptor(text)?,
        ))
      },
    )?;
    worker_perms.write = inner.write.create_child_permissions(
      child_permissions_arg.write,
      |text| {
        Ok::<_, PathResolveError>(Some(
          self.descriptor_parser.parse_write_descriptor(text)?,
        ))
      },
    )?;
    worker_perms.import = inner.import.create_child_permissions(
      child_permissions_arg.import,
      |text| {
        Ok::<_, NetDescriptorParseError>(Some(
          self.descriptor_parser.parse_import_descriptor(text)?,
        ))
      },
    )?;
    worker_perms.net = inner.net.create_child_permissions(
      child_permissions_arg.net,
      |text| {
        Ok::<_, NetDescriptorParseError>(Some(
          self.descriptor_parser.parse_net_descriptor(text)?,
        ))
      },
    )?;
    worker_perms.env = inner.env.create_child_permissions(
      child_permissions_arg.env,
      |text| {
        Ok::<_, EnvDescriptorParseError>(Some(
          self.descriptor_parser.parse_env_descriptor(text)?,
        ))
      },
    )?;
    worker_perms.sys = inner.sys.create_child_permissions(
      child_permissions_arg.sys,
      |text| {
        Ok::<_, SysDescriptorParseError>(Some(
          self.descriptor_parser.parse_sys_descriptor(text)?,
        ))
      },
    )?;
    worker_perms.run = inner.run.create_child_permissions(
      child_permissions_arg.run,
      |text| match self.descriptor_parser.parse_allow_run_descriptor(text)? {
        AllowRunDescriptorParseResult::Unresolved(_) => {
          Ok::<_, RunDescriptorParseError>(None)
        }
        AllowRunDescriptorParseResult::Descriptor(desc) => Ok(Some(desc)),
      },
    )?;
    worker_perms.ffi = inner.ffi.create_child_permissions(
      child_permissions_arg.ffi,
      |text| {
        Ok::<_, PathResolveError>(Some(
          self.descriptor_parser.parse_ffi_descriptor(text)?,
        ))
      },
    )?;

    Ok(PermissionsContainer::new(
      self.descriptor_parser.clone(),
      worker_perms,
    ))
  }

  #[inline(always)]
  pub fn check_specifier(
    &self,
    specifier: &ModuleSpecifier,
    kind: CheckSpecifierKind,
  ) -> Result<(), PermissionCheckError> {
    let mut inner = self.inner.lock();
    match specifier.scheme() {
      "file" => {
        if inner.read.is_allow_all() || kind == CheckSpecifierKind::Static {
          return Ok(());
        }

        match url_to_file_path(specifier) {
          Ok(path) => inner
            .read
            .check(
              &PathQueryDescriptor {
                requested: path.to_string_lossy().into_owned(),
                resolved: path,
              }
              .into_read(),
              Some("import()"),
            )
            .map_err(PermissionCheckError::PermissionDenied),
          Err(_) => {
            Err(PermissionCheckError::InvalidFilePath(specifier.clone()))
          }
        }
      }
      "data" => Ok(()),
      "blob" => Ok(()),
      _ => {
        if inner.import.is_allow_all() {
          return Ok(()); // avoid allocation below
        }

        let desc = self
          .descriptor_parser
          .parse_import_descriptor_from_url(specifier)?;
        inner.import.check(&desc, Some("import()"))?;
        Ok(())
      }
    }
  }

  #[must_use = "the resolved return value to mitigate time-of-check to time-of-use issues"]
  #[inline(always)]
  pub fn check_read(
    &self,
    path: &str,
    api_name: &str,
  ) -> Result<PathBuf, PermissionCheckError> {
    self.check_read_with_api_name(path, Some(api_name))
  }

  #[must_use = "the resolved return value to mitigate time-of-check to time-of-use issues"]
  #[inline(always)]
  pub fn check_read_with_api_name(
    &self,
    path: &str,
    api_name: Option<&str>,
  ) -> Result<PathBuf, PermissionCheckError> {
    let mut inner = self.inner.lock();
    let inner = &mut inner.read;
    if inner.is_allow_all() {
      Ok(PathBuf::from(path))
    } else {
      let desc = self.descriptor_parser.parse_path_query(path)?.into_read();
      inner.check(&desc, api_name)?;
      Ok(desc.0.resolved)
    }
  }

  #[must_use = "the resolved return value to mitigate time-of-check to time-of-use issues"]
  #[inline(always)]
  pub fn check_read_path<'a>(
    &self,
    path: &'a Path,
    api_name: Option<&str>,
  ) -> Result<Cow<'a, Path>, PermissionCheckError> {
    let mut inner = self.inner.lock();
    let inner = &mut inner.read;
    if inner.is_allow_all() {
      Ok(Cow::Borrowed(path))
    } else {
      let desc = PathQueryDescriptor {
        requested: path.to_string_lossy().into_owned(),
        resolved: path.to_path_buf(),
      }
      .into_read();
      inner.check(&desc, api_name)?;
      Ok(Cow::Owned(desc.0.resolved))
    }
  }

  /// As `check_read()`, but permission error messages will anonymize the path
  /// by replacing it with the given `display`.
  #[inline(always)]
  pub fn check_read_blind(
    &mut self,
    path: &Path,
    display: &str,
    api_name: &str,
  ) -> Result<(), PermissionCheckError> {
    let mut inner = self.inner.lock();
    let inner = &mut inner.read;
    skip_check_if_is_permission_fully_granted!(inner);
    inner.check(
      &PathQueryDescriptor {
        requested: format!("<{}>", display),
        resolved: path.to_path_buf(),
      }
      .into_read(),
      Some(api_name),
    )?;
    Ok(())
  }

  #[inline(always)]
  pub fn check_read_all(
    &self,
    api_name: &str,
  ) -> Result<(), PermissionCheckError> {
    self.inner.lock().read.check_all(Some(api_name))?;
    Ok(())
  }

  #[inline(always)]
  pub fn query_read_all(&self) -> bool {
    self.inner.lock().read.query(None) == PermissionState::Granted
  }

  #[must_use = "the resolved return value to mitigate time-of-check to time-of-use issues"]
  #[inline(always)]
  pub fn check_write(
    &self,
    path: &str,
    api_name: &str,
  ) -> Result<PathBuf, PermissionCheckError> {
    self.check_write_with_api_name(path, Some(api_name))
  }

  #[must_use = "the resolved return value to mitigate time-of-check to time-of-use issues"]
  #[inline(always)]
  pub fn check_write_with_api_name(
    &self,
    path: &str,
    api_name: Option<&str>,
  ) -> Result<PathBuf, PermissionCheckError> {
    let mut inner = self.inner.lock();
    let inner = &mut inner.write;
    if inner.is_allow_all() {
      Ok(PathBuf::from(path))
    } else {
      let desc = self.descriptor_parser.parse_path_query(path)?.into_write();
      inner.check(&desc, api_name)?;
      Ok(desc.0.resolved)
    }
  }

  #[must_use = "the resolved return value to mitigate time-of-check to time-of-use issues"]
  #[inline(always)]
  pub fn check_write_path<'a>(
    &self,
    path: &'a Path,
    api_name: &str,
  ) -> Result<Cow<'a, Path>, PermissionCheckError> {
    let mut inner = self.inner.lock();
    let inner = &mut inner.write;
    if inner.is_allow_all() {
      Ok(Cow::Borrowed(path))
    } else {
      let desc = PathQueryDescriptor {
        requested: path.to_string_lossy().into_owned(),
        resolved: path.to_path_buf(),
      }
      .into_write();
      inner.check(&desc, Some(api_name))?;
      Ok(Cow::Owned(desc.0.resolved))
    }
  }

  #[inline(always)]
  pub fn check_write_all(
    &self,
    api_name: &str,
  ) -> Result<(), PermissionCheckError> {
    self.inner.lock().write.check_all(Some(api_name))?;
    Ok(())
  }

  /// As `check_write()`, but permission error messages will anonymize the path
  /// by replacing it with the given `display`.
  #[inline(always)]
  pub fn check_write_blind(
    &self,
    path: &Path,
    display: &str,
    api_name: &str,
  ) -> Result<(), PermissionCheckError> {
    let mut inner = self.inner.lock();
    let inner = &mut inner.write;
    skip_check_if_is_permission_fully_granted!(inner);
    inner.check(
      &PathQueryDescriptor {
        requested: format!("<{}>", display),
        resolved: path.to_path_buf(),
      }
      .into_write(),
      Some(api_name),
    )?;
    Ok(())
  }

  #[inline(always)]
  pub fn check_write_partial(
    &mut self,
    path: &str,
    api_name: &str,
  ) -> Result<PathBuf, PermissionCheckError> {
    let mut inner = self.inner.lock();
    let inner = &mut inner.write;
    if inner.is_allow_all() {
      Ok(PathBuf::from(path))
    } else {
      let desc = self.descriptor_parser.parse_path_query(path)?.into_write();
      inner.check_partial(&desc, Some(api_name))?;
      Ok(desc.0.resolved)
    }
  }

  #[inline(always)]
  pub fn check_run(
    &mut self,
    cmd: &RunQueryDescriptor,
    api_name: &str,
  ) -> Result<(), PermissionCheckError> {
    self.inner.lock().run.check(cmd, Some(api_name))?;
    Ok(())
  }

  #[inline(always)]
  pub fn check_run_all(
    &mut self,
    api_name: &str,
  ) -> Result<(), PermissionCheckError> {
    self.inner.lock().run.check_all(Some(api_name))?;
    Ok(())
  }

  #[inline(always)]
  pub fn query_run_all(&mut self, api_name: &str) -> bool {
    self.inner.lock().run.query_all(Some(api_name))
  }

  #[inline(always)]
  pub fn check_sys(
    &self,
    kind: &str,
    api_name: &str,
  ) -> Result<(), PermissionCheckError> {
    self.inner.lock().sys.check(
      &self.descriptor_parser.parse_sys_descriptor(kind)?,
      Some(api_name),
    )?;
    Ok(())
  }

  #[inline(always)]
  pub fn check_env(&mut self, var: &str) -> Result<(), PermissionCheckError> {
    self.inner.lock().env.check(var, None)?;
    Ok(())
  }

  #[inline(always)]
  pub fn check_env_all(&mut self) -> Result<(), PermissionCheckError> {
    self.inner.lock().env.check_all()?;
    Ok(())
  }

  #[inline(always)]
  pub fn check_sys_all(&mut self) -> Result<(), PermissionCheckError> {
    self.inner.lock().sys.check_all()?;
    Ok(())
  }

  #[inline(always)]
  pub fn check_ffi_all(&mut self) -> Result<(), PermissionCheckError> {
    self.inner.lock().ffi.check_all()?;
    Ok(())
  }

  /// This checks to see if the allow-all flag was passed, not whether all
  /// permissions are enabled!
  #[inline(always)]
  pub fn check_was_allow_all_flag_passed(
    &mut self,
  ) -> Result<(), PermissionCheckError> {
    self.inner.lock().all.check()?;
    Ok(())
  }

  /// Checks special file access, returning the failed permission type if
  /// not successful.
  pub fn check_special_file(
    &mut self,
    path: &Path,
    _api_name: &str,
  ) -> Result<(), &'static str> {
    let error_all = |_| "all";

    // Safe files with no major additional side-effects. While there's a small risk of someone
    // draining system entropy by just reading one of these files constantly, that's not really
    // something we worry about as they already have --allow-read to /dev.
    if cfg!(unix)
      && (path == OsStr::new("/dev/random")
        || path == OsStr::new("/dev/urandom")
        || path == OsStr::new("/dev/zero")
        || path == OsStr::new("/dev/null"))
    {
      return Ok(());
    }

    /// We'll allow opening /proc/self/fd/{n} without additional permissions under the following conditions:
    ///
    /// 1. n > 2. This allows for opening bash-style redirections, but not stdio
    /// 2. the fd referred to by n is a pipe
    #[cfg(unix)]
    fn is_fd_file_is_pipe(path: &Path) -> bool {
      if let Some(fd) = path.file_name() {
        if let Ok(s) = std::str::from_utf8(fd.as_encoded_bytes()) {
          if let Ok(n) = s.parse::<i32>() {
            if n > 2 {
              // SAFETY: This is proper use of the stat syscall
              unsafe {
                let mut stat = std::mem::zeroed::<libc::stat>();
                if libc::fstat(n, &mut stat as _) == 0
                  && ((stat.st_mode & libc::S_IFMT) & libc::S_IFIFO) != 0
                {
                  return true;
                }
              };
            }
          }
        }
      }
      false
    }

    // On unixy systems, we allow opening /dev/fd/XXX for valid FDs that
    // are pipes.
    #[cfg(unix)]
    if path.starts_with("/dev/fd") && is_fd_file_is_pipe(path) {
      return Ok(());
    }

    if cfg!(target_os = "linux") {
      // On Linux, we also allow opening /proc/self/fd/XXX for valid FDs that
      // are pipes.
      #[cfg(unix)]
      if path.starts_with("/proc/self/fd") && is_fd_file_is_pipe(path) {
        return Ok(());
      }
      if path.starts_with("/dev")
        || path.starts_with("/proc")
        || path.starts_with("/sys")
      {
        if path.ends_with("/environ") {
          self.check_env_all().map_err(|_| "env")?;
        } else {
          self.check_was_allow_all_flag_passed().map_err(error_all)?;
        }
      }
    } else if cfg!(unix) {
      if path.starts_with("/dev") {
        self.check_was_allow_all_flag_passed().map_err(error_all)?;
      }
    } else if cfg!(target_os = "windows") {
      // \\.\nul is allowed
      let s = path.as_os_str().as_encoded_bytes();
      if s.eq_ignore_ascii_case(br#"\\.\nul"#) {
        return Ok(());
      }

      fn is_normalized_windows_drive_path(path: &Path) -> bool {
        let s = path.as_os_str().as_encoded_bytes();
        // \\?\X:\
        if s.len() < 7 {
          false
        } else if s.starts_with(br#"\\?\"#) {
          s[4].is_ascii_alphabetic() && s[5] == b':' && s[6] == b'\\'
        } else {
          false
        }
      }

      // If this is a normalized drive path, accept it
      if !is_normalized_windows_drive_path(path) {
        self.check_was_allow_all_flag_passed().map_err(error_all)?;
      }
    } else {
      unimplemented!()
    }
    Ok(())
  }

  #[inline(always)]
  pub fn check_net_url(
    &mut self,
    url: &Url,
    api_name: &str,
  ) -> Result<(), PermissionCheckError> {
    let mut inner = self.inner.lock();
    if inner.net.is_allow_all() {
      return Ok(());
    }
    let desc = self.descriptor_parser.parse_net_descriptor_from_url(url)?;
    inner.net.check(&desc, Some(api_name))?;
    Ok(())
  }

  #[inline(always)]
  pub fn check_net<T: AsRef<str>>(
    &mut self,
    host: &(T, Option<u16>),
    api_name: &str,
  ) -> Result<(), PermissionCheckError> {
    let mut inner = self.inner.lock();
    let inner = &mut inner.net;
    skip_check_if_is_permission_fully_granted!(inner);
    let hostname = Host::parse(host.0.as_ref())?;
    let descriptor = NetDescriptor(hostname, host.1);
    inner.check(&descriptor, Some(api_name))?;
    Ok(())
  }

  #[inline(always)]
  pub fn check_ffi(
    &mut self,
    path: &str,
  ) -> Result<PathBuf, PermissionCheckError> {
    let mut inner = self.inner.lock();
    let inner = &mut inner.ffi;
    if inner.is_allow_all() {
      Ok(PathBuf::from(path))
    } else {
      let desc = self.descriptor_parser.parse_path_query(path)?.into_ffi();
      inner.check(&desc, None)?;
      Ok(desc.0.resolved)
    }
  }

  #[must_use = "the resolved return value to mitigate time-of-check to time-of-use issues"]
  #[inline(always)]
  pub fn check_ffi_partial_no_path(
    &mut self,
  ) -> Result<(), PermissionCheckError> {
    let mut inner = self.inner.lock();
    let inner = &mut inner.ffi;
    if !inner.is_allow_all() {
      inner.check_partial(None)?;
    }
    Ok(())
  }

  #[must_use = "the resolved return value to mitigate time-of-check to time-of-use issues"]
  #[inline(always)]
  pub fn check_ffi_partial_with_path(
    &mut self,
    path: &str,
  ) -> Result<PathBuf, PermissionCheckError> {
    let mut inner = self.inner.lock();
    let inner = &mut inner.ffi;
    if inner.is_allow_all() {
      Ok(PathBuf::from(path))
    } else {
      let desc = self.descriptor_parser.parse_path_query(path)?.into_ffi();
      inner.check_partial(Some(&desc))?;
      Ok(desc.0.resolved)
    }
  }

  // query

  #[inline(always)]
  pub fn query_read(
    &self,
    path: Option<&str>,
  ) -> Result<PermissionState, PathResolveError> {
    let inner = self.inner.lock();
    let permission = &inner.read;
    if permission.is_allow_all() {
      return Ok(PermissionState::Granted);
    }
    Ok(
      permission.query(
        path
          .map(|path| {
            Ok::<_, PathResolveError>(
              self.descriptor_parser.parse_path_query(path)?.into_read(),
            )
          })
          .transpose()?
          .as_ref(),
      ),
    )
  }

  #[inline(always)]
  pub fn query_write(
    &self,
    path: Option<&str>,
  ) -> Result<PermissionState, PathResolveError> {
    let inner = self.inner.lock();
    let permission = &inner.write;
    if permission.is_allow_all() {
      return Ok(PermissionState::Granted);
    }
    Ok(
      permission.query(
        path
          .map(|path| {
            Ok::<_, PathResolveError>(
              self.descriptor_parser.parse_path_query(path)?.into_write(),
            )
          })
          .transpose()?
          .as_ref(),
      ),
    )
  }

  #[inline(always)]
  pub fn query_net(
    &self,
    host: Option<&str>,
  ) -> Result<PermissionState, NetDescriptorParseError> {
    let inner = self.inner.lock();
    let permission = &inner.net;
    if permission.is_allow_all() {
      return Ok(PermissionState::Granted);
    }
    Ok(
      permission.query(
        match host {
          None => None,
          Some(h) => Some(self.descriptor_parser.parse_net_descriptor(h)?),
        }
        .as_ref(),
      ),
    )
  }

  #[inline(always)]
  pub fn query_env(&self, var: Option<&str>) -> PermissionState {
    let inner = self.inner.lock();
    let permission = &inner.env;
    if permission.is_allow_all() {
      return PermissionState::Granted;
    }
    permission.query(var)
  }

  #[inline(always)]
  pub fn query_sys(
    &self,
    kind: Option<&str>,
  ) -> Result<PermissionState, SysDescriptorParseError> {
    let inner = self.inner.lock();
    let permission = &inner.sys;
    if permission.is_allow_all() {
      return Ok(PermissionState::Granted);
    }
    Ok(
      permission.query(
        kind
          .map(|kind| self.descriptor_parser.parse_sys_descriptor(kind))
          .transpose()?
          .as_ref(),
      ),
    )
  }

  #[inline(always)]
  pub fn query_run(
    &self,
    cmd: Option<&str>,
  ) -> Result<PermissionState, RunDescriptorParseError> {
    let inner = self.inner.lock();
    let permission = &inner.run;
    if permission.is_allow_all() {
      return Ok(PermissionState::Granted);
    }
    Ok(
      permission.query(
        cmd
          .map(|request| self.descriptor_parser.parse_run_query(request))
          .transpose()?
          .as_ref(),
      ),
    )
  }

  #[inline(always)]
  pub fn query_ffi(
    &self,
    path: Option<&str>,
  ) -> Result<PermissionState, PathResolveError> {
    let inner = self.inner.lock();
    let permission = &inner.ffi;
    if permission.is_allow_all() {
      return Ok(PermissionState::Granted);
    }
    Ok(
      permission.query(
        path
          .map(|path| {
            Ok::<_, PathResolveError>(
              self.descriptor_parser.parse_path_query(path)?.into_ffi(),
            )
          })
          .transpose()?
          .as_ref(),
      ),
    )
  }

  // revoke

  #[inline(always)]
  pub fn revoke_read(
    &self,
    path: Option<&str>,
  ) -> Result<PermissionState, PathResolveError> {
    Ok(
      self.inner.lock().read.revoke(
        path
          .map(|path| {
            Ok::<_, PathResolveError>(
              self.descriptor_parser.parse_path_query(path)?.into_read(),
            )
          })
          .transpose()?
          .as_ref(),
      ),
    )
  }

  #[inline(always)]
  pub fn revoke_write(
    &self,
    path: Option<&str>,
  ) -> Result<PermissionState, PathResolveError> {
    Ok(
      self.inner.lock().write.revoke(
        path
          .map(|path| {
            Ok::<_, PathResolveError>(
              self.descriptor_parser.parse_path_query(path)?.into_write(),
            )
          })
          .transpose()?
          .as_ref(),
      ),
    )
  }

  #[inline(always)]
  pub fn revoke_net(
    &self,
    host: Option<&str>,
  ) -> Result<PermissionState, NetDescriptorParseError> {
    Ok(
      self.inner.lock().net.revoke(
        match host {
          None => None,
          Some(h) => Some(self.descriptor_parser.parse_net_descriptor(h)?),
        }
        .as_ref(),
      ),
    )
  }

  #[inline(always)]
  pub fn revoke_env(&self, var: Option<&str>) -> PermissionState {
    self.inner.lock().env.revoke(var)
  }

  #[inline(always)]
  pub fn revoke_sys(
    &self,
    kind: Option<&str>,
  ) -> Result<PermissionState, SysDescriptorParseError> {
    Ok(
      self.inner.lock().sys.revoke(
        kind
          .map(|kind| self.descriptor_parser.parse_sys_descriptor(kind))
          .transpose()?
          .as_ref(),
      ),
    )
  }

  #[inline(always)]
  pub fn revoke_run(
    &self,
    cmd: Option<&str>,
  ) -> Result<PermissionState, RunDescriptorParseError> {
    Ok(
      self.inner.lock().run.revoke(
        cmd
          .map(|request| self.descriptor_parser.parse_run_query(request))
          .transpose()?
          .as_ref(),
      ),
    )
  }

  #[inline(always)]
  pub fn revoke_ffi(
    &self,
    path: Option<&str>,
  ) -> Result<PermissionState, PathResolveError> {
    Ok(
      self.inner.lock().ffi.revoke(
        path
          .map(|path| {
            Ok::<_, PathResolveError>(
              self.descriptor_parser.parse_path_query(path)?.into_ffi(),
            )
          })
          .transpose()?
          .as_ref(),
      ),
    )
  }

  // request

  #[inline(always)]
  pub fn request_read(
    &self,
    path: Option<&str>,
  ) -> Result<PermissionState, PathResolveError> {
    Ok(
      self.inner.lock().read.request(
        path
          .map(|path| {
            Ok::<_, PathResolveError>(
              self.descriptor_parser.parse_path_query(path)?.into_read(),
            )
          })
          .transpose()?
          .as_ref(),
      ),
    )
  }

  #[inline(always)]
  pub fn request_write(
    &self,
    path: Option<&str>,
  ) -> Result<PermissionState, PathResolveError> {
    Ok(
      self.inner.lock().write.request(
        path
          .map(|path| {
            Ok::<_, PathResolveError>(
              self.descriptor_parser.parse_path_query(path)?.into_write(),
            )
          })
          .transpose()?
          .as_ref(),
      ),
    )
  }

  #[inline(always)]
  pub fn request_net(
    &self,
    host: Option<&str>,
  ) -> Result<PermissionState, NetDescriptorParseError> {
    Ok(
      self.inner.lock().net.request(
        match host {
          None => None,
          Some(h) => Some(self.descriptor_parser.parse_net_descriptor(h)?),
        }
        .as_ref(),
      ),
    )
  }

  #[inline(always)]
  pub fn request_env(&self, var: Option<&str>) -> PermissionState {
    self.inner.lock().env.request(var)
  }

  #[inline(always)]
  pub fn request_sys(
    &self,
    kind: Option<&str>,
  ) -> Result<PermissionState, SysDescriptorParseError> {
    Ok(
      self.inner.lock().sys.request(
        kind
          .map(|kind| self.descriptor_parser.parse_sys_descriptor(kind))
          .transpose()?
          .as_ref(),
      ),
    )
  }

  #[inline(always)]
  pub fn request_run(
    &self,
    cmd: Option<&str>,
  ) -> Result<PermissionState, RunDescriptorParseError> {
    Ok(
      self.inner.lock().run.request(
        cmd
          .map(|request| self.descriptor_parser.parse_run_query(request))
          .transpose()?
          .as_ref(),
      ),
    )
  }

  #[inline(always)]
  pub fn request_ffi(
    &self,
    path: Option<&str>,
  ) -> Result<PermissionState, PathResolveError> {
    Ok(
      self.inner.lock().ffi.request(
        path
          .map(|path| {
            Ok::<_, PathResolveError>(
              self.descriptor_parser.parse_path_query(path)?.into_ffi(),
            )
          })
          .transpose()?
          .as_ref(),
      ),
    )
  }
}

const fn unit_permission_from_flag_bools(
  allow_flag: bool,
  deny_flag: bool,
  name: &'static str,
  description: &'static str,
  prompt: bool,
) -> UnitPermission {
  UnitPermission {
    name,
    description,
    state: if deny_flag {
      PermissionState::Denied
    } else if allow_flag {
      PermissionState::Granted
    } else {
      PermissionState::Prompt
    },
    prompt,
  }
}

fn global_from_option<T>(flag: Option<&HashSet<T>>) -> bool {
  matches!(flag, Some(v) if v.is_empty())
}

#[derive(Debug, Eq, 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, Eq, 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, Eq, PartialEq)]
pub struct ChildPermissionsArg {
  env: ChildUnaryPermissionArg,
  net: ChildUnaryPermissionArg,
  ffi: ChildUnaryPermissionArg,
  import: ChildUnaryPermissionArg,
  read: ChildUnaryPermissionArg,
  run: ChildUnaryPermissionArg,
  sys: ChildUnaryPermissionArg,
  write: ChildUnaryPermissionArg,
}

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

  pub fn none() -> Self {
    ChildPermissionsArg {
      env: ChildUnaryPermissionArg::NotGranted,
      net: ChildUnaryPermissionArg::NotGranted,
      ffi: ChildUnaryPermissionArg::NotGranted,
      import: ChildUnaryPermissionArg::NotGranted,
      read: ChildUnaryPermissionArg::NotGranted,
      run: ChildUnaryPermissionArg::NotGranted,
      sys: 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 == "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 == "import" {
            let arg = serde_json::from_value::<ChildUnaryPermissionArg>(value);
            child_permissions_arg.import = arg.map_err(|e| {
              de::Error::custom(format!("(deno.permissions.import) {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 == "sys" {
            let arg = serde_json::from_value::<ChildUnaryPermissionArg>(value);
            child_permissions_arg.sys = arg.map_err(|e| {
              de::Error::custom(format!("(deno.permissions.sys) {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)
  }
}

/// Parses and normalizes permissions.
///
/// This trait is necessary because this crate doesn't have access
/// to the file system.
pub trait PermissionDescriptorParser: Debug + Send + Sync {
  fn parse_read_descriptor(
    &self,
    text: &str,
  ) -> Result<ReadDescriptor, PathResolveError>;

  fn parse_write_descriptor(
    &self,
    text: &str,
  ) -> Result<WriteDescriptor, PathResolveError>;

  fn parse_net_descriptor(
    &self,
    text: &str,
  ) -> Result<NetDescriptor, NetDescriptorParseError>;

  fn parse_net_descriptor_from_url(
    &self,
    url: &Url,
  ) -> Result<NetDescriptor, NetDescriptorFromUrlParseError> {
    NetDescriptor::from_url(url)
  }

  fn parse_import_descriptor(
    &self,
    text: &str,
  ) -> Result<ImportDescriptor, NetDescriptorParseError>;

  fn parse_import_descriptor_from_url(
    &self,
    url: &Url,
  ) -> Result<ImportDescriptor, NetDescriptorFromUrlParseError> {
    ImportDescriptor::from_url(url)
  }

  fn parse_env_descriptor(
    &self,
    text: &str,
  ) -> Result<EnvDescriptor, EnvDescriptorParseError>;

  fn parse_sys_descriptor(
    &self,
    text: &str,
  ) -> Result<SysDescriptor, SysDescriptorParseError>;

  fn parse_allow_run_descriptor(
    &self,
    text: &str,
  ) -> Result<AllowRunDescriptorParseResult, RunDescriptorParseError>;

  fn parse_deny_run_descriptor(
    &self,
    text: &str,
  ) -> Result<DenyRunDescriptor, PathResolveError>;

  fn parse_ffi_descriptor(
    &self,
    text: &str,
  ) -> Result<FfiDescriptor, PathResolveError>;

  // queries

  fn parse_path_query(
    &self,
    path: &str,
  ) -> Result<PathQueryDescriptor, PathResolveError>;

  fn parse_run_query(
    &self,
    requested: &str,
  ) -> Result<RunQueryDescriptor, RunDescriptorParseError>;
}

static IS_STANDALONE: AtomicFlag = AtomicFlag::lowered();

pub fn mark_standalone() {
  IS_STANDALONE.raise();
}

pub fn is_standalone() -> bool {
  IS_STANDALONE.is_raised()
}

#[cfg(test)]
mod tests {
  use super::*;
  use deno_core::serde_json::json;
  use fqdn::fqdn;
  use prompter::tests::*;
  use std::net::Ipv4Addr;

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

  #[derive(Debug, Clone)]
  struct TestPermissionDescriptorParser;

  impl TestPermissionDescriptorParser {
    fn join_path_with_root(&self, path: &str) -> PathBuf {
      if path.starts_with("C:\\") {
        PathBuf::from(path)
      } else {
        PathBuf::from("/").join(path)
      }
    }
  }

  impl PermissionDescriptorParser for TestPermissionDescriptorParser {
    fn parse_read_descriptor(
      &self,
      text: &str,
    ) -> Result<ReadDescriptor, PathResolveError> {
      Ok(ReadDescriptor(self.join_path_with_root(text)))
    }

    fn parse_write_descriptor(
      &self,
      text: &str,
    ) -> Result<WriteDescriptor, PathResolveError> {
      Ok(WriteDescriptor(self.join_path_with_root(text)))
    }

    fn parse_net_descriptor(
      &self,
      text: &str,
    ) -> Result<NetDescriptor, NetDescriptorParseError> {
      NetDescriptor::parse(text)
    }

    fn parse_import_descriptor(
      &self,
      text: &str,
    ) -> Result<ImportDescriptor, NetDescriptorParseError> {
      ImportDescriptor::parse(text)
    }

    fn parse_env_descriptor(
      &self,
      text: &str,
    ) -> Result<EnvDescriptor, EnvDescriptorParseError> {
      Ok(EnvDescriptor::new(text))
    }

    fn parse_sys_descriptor(
      &self,
      text: &str,
    ) -> Result<SysDescriptor, SysDescriptorParseError> {
      SysDescriptor::parse(text.to_string())
    }

    fn parse_allow_run_descriptor(
      &self,
      text: &str,
    ) -> Result<AllowRunDescriptorParseResult, RunDescriptorParseError> {
      Ok(AllowRunDescriptorParseResult::Descriptor(
        AllowRunDescriptor(self.join_path_with_root(text)),
      ))
    }

    fn parse_deny_run_descriptor(
      &self,
      text: &str,
    ) -> Result<DenyRunDescriptor, PathResolveError> {
      if text.contains("/") {
        Ok(DenyRunDescriptor::Path(self.join_path_with_root(text)))
      } else {
        Ok(DenyRunDescriptor::Name(text.to_string()))
      }
    }

    fn parse_ffi_descriptor(
      &self,
      text: &str,
    ) -> Result<FfiDescriptor, PathResolveError> {
      Ok(FfiDescriptor(self.join_path_with_root(text)))
    }

    fn parse_path_query(
      &self,
      path: &str,
    ) -> Result<PathQueryDescriptor, PathResolveError> {
      Ok(PathQueryDescriptor {
        resolved: self.join_path_with_root(path),
        requested: path.to_string(),
      })
    }

    fn parse_run_query(
      &self,
      requested: &str,
    ) -> Result<RunQueryDescriptor, RunDescriptorParseError> {
      RunQueryDescriptor::parse(requested).map_err(Into::into)
    }
  }

  #[test]
  fn check_paths() {
    set_prompter(Box::new(TestPrompter));
    let allowlist = svec!["/a/specific/dir/name", "/a/specific", "/b/c"];

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

    let cases = [
      // Inside of /a/specific and /a/specific/dir/name
      ("/a/specific/dir/name", true),
      // Inside of /a/specific but outside of /a/specific/dir/name
      ("/a/specific/dir", true),
      // Inside of /a/specific and /a/specific/dir/name
      ("/a/specific/dir/name/inner", true),
      // Inside of /a/specific but outside of /a/specific/dir/name
      ("/a/specific/other/dir", true),
      // Exact match with /b/c
      ("/b/c", true),
      // Sub path within /b/c
      ("/b/c/sub/path", true),
      // Sub path within /b/c, needs normalizing
      ("/b/c/sub/path/../path/.", true),
      // Inside of /b but outside of /b/c
      ("/b/e", false),
      // Inside of /a but outside of /a/specific
      ("/a/b", false),
    ];

    for (path, is_ok) in cases {
      assert_eq!(perms.check_read(path, "api").is_ok(), is_ok);
      assert_eq!(perms.check_write(path, "api").is_ok(), is_ok);
      assert_eq!(perms.check_ffi(path).is_ok(), is_ok);
    }
  }

  #[test]
  fn test_check_net_with_values() {
    set_prompter(Box::new(TestPrompter));
    let parser = TestPermissionDescriptorParser;
    let mut perms = Permissions::from_options(
      &parser,
      &PermissionsOptions {
        allow_net: Some(svec![
          "localhost",
          "deno.land",
          "github.com:3000",
          "127.0.0.1",
          "172.16.0.2:8000",
          "www.github.com:443",
          "80.example.com:80",
          "443.example.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),
      ("443.example.com", 444, false),
      ("80.example.com", 81, false),
      ("80.example.com", 80, true),
      // Just some random hosts that should err
      ("somedomain", 0, false),
      ("192.168.0.1", 0, false),
    ];

    for (host, port, is_ok) in domain_tests {
      let host = Host::parse(host).unwrap();
      let descriptor = NetDescriptor(host, Some(port));
      assert_eq!(
        is_ok,
        perms.net.check(&descriptor, None).is_ok(),
        "{descriptor}",
      );
    }
  }

  #[test]
  fn test_check_net_only_flag() {
    set_prompter(Box::new(TestPrompter));
    let parser = TestPermissionDescriptorParser;
    let mut perms = Permissions::from_options(
      &parser,
      &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_str, port) in domain_tests {
      let host = Host::parse(host_str).unwrap();
      let descriptor = NetDescriptor(host, Some(port));
      assert!(
        perms.net.check(&descriptor, None).is_ok(),
        "expected {host_str}:{port} to pass"
      );
    }
  }

  #[test]
  fn test_check_net_no_flag() {
    set_prompter(Box::new(TestPrompter));
    let parser = TestPermissionDescriptorParser;
    let mut perms = Permissions::from_options(
      &parser,
      &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_str, port) in domain_tests {
      let host = Host::parse(host_str).unwrap();
      let descriptor = NetDescriptor(host, Some(port));
      assert!(
        perms.net.check(&descriptor, None).is_err(),
        "expected {host_str}:{port} to fail"
      );
    }
  }

  #[test]
  fn test_check_net_url() {
    let parser = TestPermissionDescriptorParser;
    let perms = Permissions::from_options(
      &parser,
      &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 mut perms = PermissionsContainer::new(Arc::new(parser), perms);

    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::parse(url_str).unwrap();
      assert_eq!(is_ok, perms.check_net_url(&u, "api()").is_ok(), "{}", u);
    }
  }

  #[test]
  fn check_specifiers() {
    set_prompter(Box::new(TestPrompter));
    let read_allowlist = if cfg!(target_os = "windows") {
      svec!["C:\\a"]
    } else {
      svec!["/a"]
    };
    let parser = TestPermissionDescriptorParser;
    let perms = Permissions::from_options(
      &parser,
      &PermissionsOptions {
        allow_read: Some(read_allowlist),
        allow_import: Some(svec!["localhost"]),
        ..Default::default()
      },
    )
    .unwrap();
    let perms = PermissionsContainer::new(Arc::new(parser), perms);

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

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

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

  #[test]
  fn test_query() {
    set_prompter(Box::new(TestPrompter));
    let parser = TestPermissionDescriptorParser;
    let perms1 = Permissions::allow_all();
    let perms2 = Permissions::from_options(
      &parser,
      &PermissionsOptions {
        allow_read: Some(svec!["/foo"]),
        allow_write: Some(svec!["/foo"]),
        allow_ffi: Some(svec!["/foo"]),
        allow_net: Some(svec!["127.0.0.1:8000"]),
        allow_env: Some(svec!["HOME"]),
        allow_sys: Some(svec!["hostname"]),
        allow_run: Some(svec!["/deno"]),
        allow_all: false,
        ..Default::default()
      },
    )
    .unwrap();
    let perms3 = Permissions::from_options(
      &parser,
      &PermissionsOptions {
        deny_read: Some(svec!["/foo"]),
        deny_write: Some(svec!["/foo"]),
        deny_ffi: Some(svec!["/foo"]),
        deny_net: Some(svec!["127.0.0.1:8000"]),
        deny_env: Some(svec!["HOME"]),
        deny_sys: Some(svec!["hostname"]),
        deny_run: Some(svec!["deno"]),
        ..Default::default()
      },
    )
    .unwrap();
    let perms4 = Permissions::from_options(
      &parser,
      &PermissionsOptions {
        allow_read: Some(vec![]),
        deny_read: Some(svec!["/foo"]),
        allow_write: Some(vec![]),
        deny_write: Some(svec!["/foo"]),
        allow_ffi: Some(vec![]),
        deny_ffi: Some(svec!["/foo"]),
        allow_net: Some(vec![]),
        deny_net: Some(svec!["127.0.0.1:8000"]),
        allow_env: Some(vec![]),
        deny_env: Some(svec!["HOME"]),
        allow_sys: Some(vec![]),
        deny_sys: Some(svec!["hostname"]),
        allow_run: Some(vec![]),
        deny_run: Some(svec!["deno"]),
        ..Default::default()
      },
    )
    .unwrap();
    #[rustfmt::skip]
    {
      let read_query = |path: &str| parser.parse_path_query(path).unwrap().into_read();
      let write_query = |path: &str| parser.parse_path_query(path).unwrap().into_write();
      let ffi_query = |path: &str| parser.parse_path_query(path).unwrap().into_ffi();
      assert_eq!(perms1.read.query(None), PermissionState::Granted);
      assert_eq!(perms1.read.query(Some(&read_query("/foo"))), PermissionState::Granted);
      assert_eq!(perms2.read.query(None), PermissionState::Prompt);
      assert_eq!(perms2.read.query(Some(&read_query("/foo"))), PermissionState::Granted);
      assert_eq!(perms2.read.query(Some(&read_query("/foo/bar"))), PermissionState::Granted);
      assert_eq!(perms3.read.query(None), PermissionState::Prompt);
      assert_eq!(perms3.read.query(Some(&read_query("/foo"))), PermissionState::Denied);
      assert_eq!(perms3.read.query(Some(&read_query("/foo/bar"))), PermissionState::Denied);
      assert_eq!(perms4.read.query(None), PermissionState::GrantedPartial);
      assert_eq!(perms4.read.query(Some(&read_query("/foo"))), PermissionState::Denied);
      assert_eq!(perms4.read.query(Some(&read_query("/foo/bar"))), PermissionState::Denied);
      assert_eq!(perms4.read.query(Some(&read_query("/bar"))), PermissionState::Granted);
      assert_eq!(perms1.write.query(None), PermissionState::Granted);
      assert_eq!(perms1.write.query(Some(&write_query("/foo"))), PermissionState::Granted);
      assert_eq!(perms2.write.query(None), PermissionState::Prompt);
      assert_eq!(perms2.write.query(Some(&write_query("/foo"))), PermissionState::Granted);
      assert_eq!(perms2.write.query(Some(&write_query("/foo/bar"))), PermissionState::Granted);
      assert_eq!(perms3.write.query(None), PermissionState::Prompt);
      assert_eq!(perms3.write.query(Some(&write_query("/foo"))), PermissionState::Denied);
      assert_eq!(perms3.write.query(Some(&write_query("/foo/bar"))), PermissionState::Denied);
      assert_eq!(perms4.write.query(None), PermissionState::GrantedPartial);
      assert_eq!(perms4.write.query(Some(&write_query("/foo"))), PermissionState::Denied);
      assert_eq!(perms4.write.query(Some(&write_query("/foo/bar"))), PermissionState::Denied);
      assert_eq!(perms4.write.query(Some(&write_query("/bar"))), PermissionState::Granted);
      assert_eq!(perms1.ffi.query(None), PermissionState::Granted);
      assert_eq!(perms1.ffi.query(Some(&ffi_query("/foo"))), PermissionState::Granted);
      assert_eq!(perms2.ffi.query(None), PermissionState::Prompt);
      assert_eq!(perms2.ffi.query(Some(&ffi_query("/foo"))), PermissionState::Granted);
      assert_eq!(perms2.ffi.query(Some(&ffi_query("/foo/bar"))), PermissionState::Granted);
      assert_eq!(perms3.ffi.query(None), PermissionState::Prompt);
      assert_eq!(perms3.ffi.query(Some(&ffi_query("/foo"))), PermissionState::Denied);
      assert_eq!(perms3.ffi.query(Some(&ffi_query("/foo/bar"))), PermissionState::Denied);
      assert_eq!(perms4.ffi.query(None), PermissionState::GrantedPartial);
      assert_eq!(perms4.ffi.query(Some(&ffi_query("/foo"))), PermissionState::Denied);
      assert_eq!(perms4.ffi.query(Some(&ffi_query("/foo/bar"))), PermissionState::Denied);
      assert_eq!(perms4.ffi.query(Some(&ffi_query("/bar"))), PermissionState::Granted);
      assert_eq!(perms1.net.query(None), PermissionState::Granted);
      assert_eq!(perms1.net.query(Some(&NetDescriptor(Host::must_parse("127.0.0.1"), None))), PermissionState::Granted);
      assert_eq!(perms2.net.query(None), PermissionState::Prompt);
      assert_eq!(perms2.net.query(Some(&NetDescriptor(Host::must_parse("127.0.0.1"), Some(8000)))), PermissionState::Granted);
      assert_eq!(perms3.net.query(None), PermissionState::Prompt);
      assert_eq!(perms3.net.query(Some(&NetDescriptor(Host::must_parse("127.0.0.1"), Some(8000)))), PermissionState::Denied);
      assert_eq!(perms4.net.query(None), PermissionState::GrantedPartial);
      assert_eq!(perms4.net.query(Some(&NetDescriptor(Host::must_parse("127.0.0.1"), Some(8000)))), PermissionState::Denied);
      assert_eq!(perms4.net.query(Some(&NetDescriptor(Host::must_parse("192.168.0.1"), 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!(perms3.env.query(None), PermissionState::Prompt);
      assert_eq!(perms3.env.query(Some("HOME")), PermissionState::Denied);
      assert_eq!(perms4.env.query(None), PermissionState::GrantedPartial);
      assert_eq!(perms4.env.query(Some("HOME")), PermissionState::Denied);
      assert_eq!(perms4.env.query(Some("AWAY")), PermissionState::Granted);
      let sys_desc = |name: &str| SysDescriptor::parse(name.to_string()).unwrap();
      assert_eq!(perms1.sys.query(None), PermissionState::Granted);
      assert_eq!(perms1.sys.query(Some(&sys_desc("osRelease"))), PermissionState::Granted);
      assert_eq!(perms2.sys.query(None), PermissionState::Prompt);
      assert_eq!(perms2.sys.query(Some(&sys_desc("hostname"))), PermissionState::Granted);
      assert_eq!(perms3.sys.query(None), PermissionState::Prompt);
      assert_eq!(perms3.sys.query(Some(&sys_desc("hostname"))), PermissionState::Denied);
      assert_eq!(perms4.sys.query(None), PermissionState::GrantedPartial);
      assert_eq!(perms4.sys.query(Some(&sys_desc("hostname"))), PermissionState::Denied);
      assert_eq!(perms4.sys.query(Some(&sys_desc("uid"))), PermissionState::Granted);
      assert_eq!(perms1.run.query(None), PermissionState::Granted);
      let deno_run_query = RunQueryDescriptor::Path {
        requested: "deno".to_string(),
        resolved: PathBuf::from("/deno"),
      };
      let node_run_query = RunQueryDescriptor::Path {
        requested: "node".to_string(),
        resolved: PathBuf::from("/node"),
      };
      assert_eq!(perms1.run.query(Some(&deno_run_query)), PermissionState::Granted);
      assert_eq!(perms1.write.query(Some(&write_query("/deno"))), PermissionState::Granted);
      assert_eq!(perms2.run.query(None), PermissionState::Prompt);
      assert_eq!(perms2.run.query(Some(&deno_run_query)), PermissionState::Granted);
      assert_eq!(perms2.write.query(Some(&write_query("/deno"))), PermissionState::Denied);
      assert_eq!(perms3.run.query(None), PermissionState::Prompt);
      assert_eq!(perms3.run.query(Some(&deno_run_query)), PermissionState::Denied);
      assert_eq!(perms4.run.query(None), PermissionState::GrantedPartial);
      assert_eq!(perms4.run.query(Some(&deno_run_query)), PermissionState::Denied);
      assert_eq!(perms4.run.query(Some(&node_run_query)), PermissionState::Granted);
    };
  }

  #[test]
  fn test_request() {
    set_prompter(Box::new(TestPrompter));
    let parser = TestPermissionDescriptorParser;
    let mut perms: Permissions = Permissions::none_with_prompt();
    let mut perms_no_prompt: Permissions = Permissions::none_without_prompt();
    let read_query =
      |path: &str| parser.parse_path_query(path).unwrap().into_read();
    let write_query =
      |path: &str| parser.parse_path_query(path).unwrap().into_write();
    let ffi_query =
      |path: &str| parser.parse_path_query(path).unwrap().into_ffi();
    #[rustfmt::skip]
    {
      let prompt_value = PERMISSION_PROMPT_STUB_VALUE_SETTER.lock();
      prompt_value.set(true);
      assert_eq!(perms.read.request(Some(&read_query("/foo"))), PermissionState::Granted);
      assert_eq!(perms.read.query(None), PermissionState::Prompt);
      prompt_value.set(false);
      assert_eq!(perms.read.request(Some(&read_query("/foo/bar"))), PermissionState::Granted);
      prompt_value.set(false);
      assert_eq!(perms.write.request(Some(&write_query("/foo"))), PermissionState::Denied);
      assert_eq!(perms.write.query(Some(&write_query("/foo/bar"))), PermissionState::Prompt);
      prompt_value.set(true);
      assert_eq!(perms.write.request(None), PermissionState::Denied);
      prompt_value.set(false);
      assert_eq!(perms.ffi.request(Some(&ffi_query("/foo"))), PermissionState::Denied);
      assert_eq!(perms.ffi.query(Some(&ffi_query("/foo/bar"))), PermissionState::Prompt);
      prompt_value.set(true);
      assert_eq!(perms.ffi.request(None), PermissionState::Denied);
      prompt_value.set(true);
      assert_eq!(perms.net.request(Some(&NetDescriptor(Host::must_parse("127.0.0.1"), None))), PermissionState::Granted);
      prompt_value.set(false);
      assert_eq!(perms.net.request(Some(&NetDescriptor(Host::must_parse("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);
      let sys_desc = |name: &str| SysDescriptor::parse(name.to_string()).unwrap();
      assert_eq!(perms.sys.request(Some(&sys_desc("hostname"))), PermissionState::Granted);
      assert_eq!(perms.sys.query(None), PermissionState::Prompt);
      prompt_value.set(false);
      assert_eq!(perms.sys.request(Some(&sys_desc("hostname"))), PermissionState::Granted);
      prompt_value.set(true);
      let run_query = RunQueryDescriptor::Path {
        requested: "deno".to_string(),
        resolved: PathBuf::from("/deno"),
      };
      assert_eq!(perms.run.request(Some(&run_query)), PermissionState::Granted);
      assert_eq!(perms.run.query(None), PermissionState::Prompt);
      prompt_value.set(false);
      assert_eq!(perms.run.request(Some(&run_query)), PermissionState::Granted);
      assert_eq!(perms_no_prompt.read.request(Some(&read_query("/foo"))), PermissionState::Denied);
    };
  }

  #[test]
  fn test_revoke() {
    set_prompter(Box::new(TestPrompter));
    let parser = TestPermissionDescriptorParser;
    let mut perms = Permissions::from_options(
      &parser,
      &PermissionsOptions {
        allow_read: Some(svec!["/foo", "/foo/baz"]),
        allow_write: Some(svec!["/foo", "/foo/baz"]),
        allow_ffi: Some(svec!["/foo", "/foo/baz"]),
        allow_net: Some(svec!["127.0.0.1", "127.0.0.1:8000"]),
        allow_env: Some(svec!["HOME"]),
        allow_sys: Some(svec!["hostname"]),
        allow_run: Some(svec!["/deno"]),
        ..Default::default()
      },
    )
    .unwrap();
    let read_query =
      |path: &str| parser.parse_path_query(path).unwrap().into_read();
    let write_query =
      |path: &str| parser.parse_path_query(path).unwrap().into_write();
    let ffi_query =
      |path: &str| parser.parse_path_query(path).unwrap().into_ffi();
    #[rustfmt::skip]
    {
      assert_eq!(perms.read.revoke(Some(&read_query("/foo/bar"))), PermissionState::Prompt);
      assert_eq!(perms.read.query(Some(&read_query("/foo"))), PermissionState::Prompt);
      assert_eq!(perms.read.query(Some(&read_query("/foo/baz"))), PermissionState::Granted);
      assert_eq!(perms.write.revoke(Some(&write_query("/foo/bar"))), PermissionState::Prompt);
      assert_eq!(perms.write.query(Some(&write_query("/foo"))), PermissionState::Prompt);
      assert_eq!(perms.write.query(Some(&write_query("/foo/baz"))), PermissionState::Granted);
      assert_eq!(perms.ffi.revoke(Some(&ffi_query("/foo/bar"))), PermissionState::Prompt);
      assert_eq!(perms.ffi.query(Some(&ffi_query("/foo"))), PermissionState::Prompt);
      assert_eq!(perms.ffi.query(Some(&ffi_query("/foo/baz"))), PermissionState::Granted);
      assert_eq!(perms.net.revoke(Some(&NetDescriptor(Host::must_parse("127.0.0.1"), Some(9000)))), PermissionState::Prompt);
      assert_eq!(perms.net.query(Some(&NetDescriptor(Host::must_parse("127.0.0.1"), None))), PermissionState::Prompt);
      assert_eq!(perms.net.query(Some(&NetDescriptor(Host::must_parse("127.0.0.1"), Some(8000)))), PermissionState::Granted);
      assert_eq!(perms.env.revoke(Some("HOME")), PermissionState::Prompt);
      assert_eq!(perms.env.revoke(Some("hostname")), PermissionState::Prompt);
      let run_query = RunQueryDescriptor::Path {
        requested: "deno".to_string(),
        resolved: PathBuf::from("/deno"),
      };
      assert_eq!(perms.run.revoke(Some(&run_query)), PermissionState::Prompt);
    };
  }

  #[test]
  fn test_check() {
    set_prompter(Box::new(TestPrompter));
    let mut perms = Permissions::none_with_prompt();
    let prompt_value = PERMISSION_PROMPT_STUB_VALUE_SETTER.lock();
    let parser = TestPermissionDescriptorParser;
    let read_query =
      |path: &str| parser.parse_path_query(path).unwrap().into_read();
    let write_query =
      |path: &str| parser.parse_path_query(path).unwrap().into_write();
    let ffi_query =
      |path: &str| parser.parse_path_query(path).unwrap().into_ffi();

    prompt_value.set(true);
    assert!(perms.read.check(&read_query("/foo"), None).is_ok());
    prompt_value.set(false);
    assert!(perms.read.check(&read_query("/foo"), None).is_ok());
    assert!(perms.read.check(&read_query("/bar"), None).is_err());

    prompt_value.set(true);
    assert!(perms.write.check(&write_query("/foo"), None).is_ok());
    prompt_value.set(false);
    assert!(perms.write.check(&write_query("/foo"), None).is_ok());
    assert!(perms.write.check(&write_query("/bar"), None).is_err());

    prompt_value.set(true);
    assert!(perms.ffi.check(&ffi_query("/foo"), None).is_ok());
    prompt_value.set(false);
    assert!(perms.ffi.check(&ffi_query("/foo"), None).is_ok());
    assert!(perms.ffi.check(&ffi_query("/bar"), None).is_err());

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

    #[allow(clippy::disallowed_methods)]
    let cwd = std::env::current_dir().unwrap();
    prompt_value.set(true);
    assert!(perms
      .run
      .check(
        &RunQueryDescriptor::Path {
          requested: "cat".to_string(),
          resolved: cwd.join("cat")
        },
        None
      )
      .is_ok());
    prompt_value.set(false);
    assert!(perms
      .run
      .check(
        &RunQueryDescriptor::Path {
          requested: "cat".to_string(),
          resolved: cwd.join("cat")
        },
        None
      )
      .is_ok());
    assert!(perms
      .run
      .check(
        &RunQueryDescriptor::Path {
          requested: "ls".to_string(),
          resolved: cwd.join("ls")
        },
        None
      )
      .is_err());

    prompt_value.set(true);
    assert!(perms.env.check("HOME", None).is_ok());
    prompt_value.set(false);
    assert!(perms.env.check("HOME", None).is_ok());
    assert!(perms.env.check("PATH", None).is_err());

    prompt_value.set(true);
    assert!(perms.env.check("hostname", None).is_ok());
    prompt_value.set(false);
    assert!(perms.env.check("hostname", None).is_ok());
    assert!(perms.env.check("osRelease", None).is_err());
  }

  #[test]
  fn test_check_fail() {
    set_prompter(Box::new(TestPrompter));
    let mut perms = Permissions::none_with_prompt();
    let prompt_value = PERMISSION_PROMPT_STUB_VALUE_SETTER.lock();
    let parser = TestPermissionDescriptorParser;
    let read_query =
      |path: &str| parser.parse_path_query(path).unwrap().into_read();
    let write_query =
      |path: &str| parser.parse_path_query(path).unwrap().into_write();
    let ffi_query =
      |path: &str| parser.parse_path_query(path).unwrap().into_ffi();

    prompt_value.set(false);
    assert!(perms.read.check(&read_query("/foo"), None).is_err());
    prompt_value.set(true);
    assert!(perms.read.check(&read_query("/foo"), None).is_err());
    assert!(perms.read.check(&read_query("/bar"), None).is_ok());
    prompt_value.set(false);
    assert!(perms.read.check(&read_query("/bar"), None).is_ok());

    prompt_value.set(false);
    assert!(perms.write.check(&write_query("/foo"), None).is_err());
    prompt_value.set(true);
    assert!(perms.write.check(&write_query("/foo"), None).is_err());
    assert!(perms.write.check(&write_query("/bar"), None).is_ok());
    prompt_value.set(false);
    assert!(perms.write.check(&write_query("/bar"), None).is_ok());

    prompt_value.set(false);
    assert!(perms.ffi.check(&ffi_query("/foo"), None).is_err());
    prompt_value.set(true);
    assert!(perms.ffi.check(&ffi_query("/foo"), None).is_err());
    assert!(perms.ffi.check(&ffi_query("/bar"), None).is_ok());
    prompt_value.set(false);
    assert!(perms.ffi.check(&ffi_query("/bar"), None).is_ok());

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

    prompt_value.set(false);
    #[allow(clippy::disallowed_methods)]
    let cwd = std::env::current_dir().unwrap();
    assert!(perms
      .run
      .check(
        &RunQueryDescriptor::Path {
          requested: "cat".to_string(),
          resolved: cwd.join("cat")
        },
        None
      )
      .is_err());
    prompt_value.set(true);
    assert!(perms
      .run
      .check(
        &RunQueryDescriptor::Path {
          requested: "cat".to_string(),
          resolved: cwd.join("cat")
        },
        None
      )
      .is_err());
    assert!(perms
      .run
      .check(
        &RunQueryDescriptor::Path {
          requested: "ls".to_string(),
          resolved: cwd.join("ls")
        },
        None
      )
      .is_ok());
    prompt_value.set(false);
    assert!(perms
      .run
      .check(
        &RunQueryDescriptor::Path {
          requested: "ls".to_string(),
          resolved: cwd.join("ls")
        },
        None
      )
      .is_ok());

    prompt_value.set(false);
    assert!(perms.env.check("HOME", None).is_err());
    prompt_value.set(true);
    assert!(perms.env.check("HOME", None).is_err());
    assert!(perms.env.check("PATH", None).is_ok());
    prompt_value.set(false);
    assert!(perms.env.check("PATH", None).is_ok());

    prompt_value.set(false);
    let sys_desc = |name: &str| SysDescriptor::parse(name.to_string()).unwrap();
    assert!(perms.sys.check(&sys_desc("hostname"), None).is_err());
    prompt_value.set(true);
    assert!(perms.sys.check(&sys_desc("hostname"), None).is_err());
    assert!(perms.sys.check(&sys_desc("osRelease"), None).is_ok());
    prompt_value.set(false);
    assert!(perms.sys.check(&sys_desc("osRelease"), None).is_ok());
  }

  #[test]
  #[cfg(windows)]
  fn test_env_windows() {
    set_prompter(Box::new(TestPrompter));
    let prompt_value = PERMISSION_PROMPT_STUB_VALUE_SETTER.lock();
    let mut perms = Permissions::allow_all();
    perms.env = UnaryPermission {
      granted_global: false,
      ..Permissions::new_unary(
        Some(HashSet::from([EnvDescriptor::new("HOME")])),
        None,
        false,
      )
    };

    prompt_value.set(true);
    assert!(perms.env.check("HOME", None).is_ok());
    prompt_value.set(false);
    assert!(perms.env.check("HOME", None).is_ok());
    assert!(perms.env.check("hOmE", None).is_ok());

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

  #[test]
  fn test_env_wildcards() {
    set_prompter(Box::new(TestPrompter));
    let _prompt_value = PERMISSION_PROMPT_STUB_VALUE_SETTER.lock();
    let mut perms = Permissions::allow_all();
    perms.env = UnaryPermission {
      granted_global: false,
      ..Permissions::new_unary(
        Some(HashSet::from([EnvDescriptor::new("HOME_*")])),
        None,
        false,
      )
    };
    assert_eq!(perms.env.query(Some("HOME")), PermissionState::Prompt);
    assert_eq!(perms.env.query(Some("HOME_")), PermissionState::Granted);
    assert_eq!(perms.env.query(Some("HOME_TEST")), PermissionState::Granted);

    // assert no privilege escalation
    let parser = TestPermissionDescriptorParser;
    assert!(perms
      .env
      .create_child_permissions(
        ChildUnaryPermissionArg::GrantedList(vec!["HOME_SUB".to_string()]),
        |value| parser.parse_env_descriptor(value).map(Some),
      )
      .is_ok());
    assert!(perms
      .env
      .create_child_permissions(
        ChildUnaryPermissionArg::GrantedList(vec!["HOME*".to_string()]),
        |value| parser.parse_env_descriptor(value).map(Some),
      )
      .is_err());
    assert!(perms
      .env
      .create_child_permissions(
        ChildUnaryPermissionArg::GrantedList(vec!["OUTSIDE".to_string()]),
        |value| parser.parse_env_descriptor(value).map(Some),
      )
      .is_err());
    assert!(perms
      .env
      .create_child_permissions(
        // ok because this is a subset of HOME_*
        ChildUnaryPermissionArg::GrantedList(vec!["HOME_S*".to_string()]),
        |value| parser.parse_env_descriptor(value).map(Some),
      )
      .is_ok());
  }

  #[test]
  fn test_check_partial_denied() {
    let parser = TestPermissionDescriptorParser;
    let mut perms = Permissions::from_options(
      &parser,
      &PermissionsOptions {
        allow_read: Some(vec![]),
        deny_read: Some(svec!["/foo/bar"]),
        allow_write: Some(vec![]),
        deny_write: Some(svec!["/foo/bar"]),
        ..Default::default()
      },
    )
    .unwrap();

    let read_query = parser.parse_path_query("/foo").unwrap().into_read();
    perms.read.check_partial(&read_query, None).unwrap();
    assert!(perms.read.check(&read_query, None).is_err());

    let write_query = parser.parse_path_query("/foo").unwrap().into_write();
    perms.write.check_partial(&write_query, None).unwrap();
    assert!(perms.write.check(&write_query, None).is_err());
  }

  #[test]
  fn test_net_fully_qualified_domain_name() {
    set_prompter(Box::new(TestPrompter));
    let parser = TestPermissionDescriptorParser;
    let perms = Permissions::from_options(
      &parser,
      &PermissionsOptions {
        allow_net: Some(svec!["allowed.domain", "1.1.1.1"]),
        deny_net: Some(svec!["denied.domain", "2.2.2.2"]),
        ..Default::default()
      },
    )
    .unwrap();
    let mut perms = PermissionsContainer::new(Arc::new(parser), perms);
    let cases = [
      ("allowed.domain.", true),
      ("1.1.1.1", true),
      ("denied.domain.", false),
      ("2.2.2.2", false),
    ];

    for (host, is_ok) in cases {
      assert_eq!(perms.check_net(&(host, None), "api").is_ok(), is_ok);
    }
  }

  #[test]
  fn test_deserialize_child_permissions_arg() {
    set_prompter(Box::new(TestPrompter));
    assert_eq!(
      ChildPermissionsArg::inherit(),
      ChildPermissionsArg {
        env: ChildUnaryPermissionArg::Inherit,
        net: ChildUnaryPermissionArg::Inherit,
        ffi: ChildUnaryPermissionArg::Inherit,
        import: ChildUnaryPermissionArg::Inherit,
        read: ChildUnaryPermissionArg::Inherit,
        run: ChildUnaryPermissionArg::Inherit,
        sys: ChildUnaryPermissionArg::Inherit,
        write: ChildUnaryPermissionArg::Inherit,
      }
    );
    assert_eq!(
      ChildPermissionsArg::none(),
      ChildPermissionsArg {
        env: ChildUnaryPermissionArg::NotGranted,
        net: ChildUnaryPermissionArg::NotGranted,
        ffi: ChildUnaryPermissionArg::NotGranted,
        import: ChildUnaryPermissionArg::NotGranted,
        read: ChildUnaryPermissionArg::NotGranted,
        run: ChildUnaryPermissionArg::NotGranted,
        sys: 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!({
        "env": true,
        "net": true,
        "ffi": true,
        "import": true,
        "read": true,
        "run": true,
        "sys": true,
        "write": true,
      }))
      .unwrap(),
      ChildPermissionsArg {
        env: ChildUnaryPermissionArg::Granted,
        net: ChildUnaryPermissionArg::Granted,
        ffi: ChildUnaryPermissionArg::Granted,
        import: ChildUnaryPermissionArg::Granted,
        read: ChildUnaryPermissionArg::Granted,
        run: ChildUnaryPermissionArg::Granted,
        sys: ChildUnaryPermissionArg::Granted,
        write: ChildUnaryPermissionArg::Granted,
      }
    );
    assert_eq!(
      serde_json::from_value::<ChildPermissionsArg>(json!({
        "env": false,
        "net": false,
        "ffi": false,
        "import": false,
        "read": false,
        "run": false,
        "sys": false,
        "write": false,
      }))
      .unwrap(),
      ChildPermissionsArg {
        env: ChildUnaryPermissionArg::NotGranted,
        net: ChildUnaryPermissionArg::NotGranted,
        ffi: ChildUnaryPermissionArg::NotGranted,
        import: ChildUnaryPermissionArg::NotGranted,
        read: ChildUnaryPermissionArg::NotGranted,
        run: ChildUnaryPermissionArg::NotGranted,
        sys: ChildUnaryPermissionArg::NotGranted,
        write: ChildUnaryPermissionArg::NotGranted,
      }
    );
    assert_eq!(
      serde_json::from_value::<ChildPermissionsArg>(json!({
        "env": ["foo", "bar"],
        "net": ["foo", "bar:8000"],
        "ffi": ["foo", "file:///bar/baz"],
        "import": ["example.com"],
        "read": ["foo", "file:///bar/baz"],
        "run": ["foo", "file:///bar/baz", "./qux"],
        "sys": ["hostname", "osRelease"],
        "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"
        ]),
        import: ChildUnaryPermissionArg::GrantedList(svec!["example.com"]),
        read: ChildUnaryPermissionArg::GrantedList(svec![
          "foo",
          "file:///bar/baz"
        ]),
        run: ChildUnaryPermissionArg::GrantedList(svec![
          "foo",
          "file:///bar/baz",
          "./qux"
        ]),
        sys: ChildUnaryPermissionArg::GrantedList(svec![
          "hostname",
          "osRelease"
        ]),
        write: ChildUnaryPermissionArg::GrantedList(svec![
          "foo",
          "file:///bar/baz"
        ]),
      }
    );
  }

  #[test]
  fn test_create_child_permissions() {
    set_prompter(Box::new(TestPrompter));
    let parser = TestPermissionDescriptorParser;
    let main_perms = Permissions::from_options(
      &parser,
      &PermissionsOptions {
        allow_env: Some(vec![]),
        allow_net: Some(svec!["foo", "bar"]),
        ..Default::default()
      },
    )
    .unwrap();
    let main_perms = PermissionsContainer::new(Arc::new(parser), main_perms);
    assert_eq!(
      main_perms
        .create_child_permissions(ChildPermissionsArg {
          env: ChildUnaryPermissionArg::Inherit,
          net: ChildUnaryPermissionArg::GrantedList(svec!["foo"]),
          ffi: ChildUnaryPermissionArg::NotGranted,
          ..ChildPermissionsArg::none()
        })
        .unwrap()
        .inner
        .lock()
        .clone(),
      Permissions {
        env: Permissions::new_unary(Some(HashSet::new()), None, false),
        net: Permissions::new_unary(
          Some(HashSet::from([NetDescriptor::parse("foo").unwrap()])),
          None,
          false
        ),
        ..Permissions::none_without_prompt()
      }
    );
    assert!(main_perms
      .create_child_permissions(ChildPermissionsArg {
        net: ChildUnaryPermissionArg::Granted,
        ..ChildPermissionsArg::none()
      })
      .is_err());
    assert!(main_perms
      .create_child_permissions(ChildPermissionsArg {
        net: ChildUnaryPermissionArg::GrantedList(svec!["foo", "bar", "baz"]),
        ..ChildPermissionsArg::none()
      })
      .is_err());
    assert!(main_perms
      .create_child_permissions(ChildPermissionsArg {
        ffi: ChildUnaryPermissionArg::GrantedList(svec!["foo"]),
        ..ChildPermissionsArg::none()
      })
      .is_err());
  }

  #[test]
  fn test_create_child_permissions_with_prompt() {
    set_prompter(Box::new(TestPrompter));
    let prompt_value = PERMISSION_PROMPT_STUB_VALUE_SETTER.lock();
    let main_perms = Permissions::from_options(
      &TestPermissionDescriptorParser,
      &PermissionsOptions {
        prompt: true,
        ..Default::default()
      },
    )
    .unwrap();
    let main_perms = PermissionsContainer::new(
      Arc::new(TestPermissionDescriptorParser),
      main_perms,
    );
    prompt_value.set(true);
    let worker_perms = main_perms
      .create_child_permissions(ChildPermissionsArg {
        read: ChildUnaryPermissionArg::Granted,
        run: ChildUnaryPermissionArg::GrantedList(svec!["foo", "bar"]),
        ..ChildPermissionsArg::none()
      })
      .unwrap();
    assert_eq!(
      main_perms.inner.lock().clone(),
      worker_perms.inner.lock().clone()
    );
    assert_eq!(
      main_perms.inner.lock().run.granted_list,
      HashSet::from([
        AllowRunDescriptor(PathBuf::from("/bar")),
        AllowRunDescriptor(PathBuf::from("/foo")),
      ])
    );
  }

  #[test]
  fn test_create_child_permissions_with_inherited_denied_list() {
    set_prompter(Box::new(TestPrompter));
    let prompt_value = PERMISSION_PROMPT_STUB_VALUE_SETTER.lock();
    let parser = TestPermissionDescriptorParser;
    let main_perms = Permissions::from_options(
      &parser,
      &PermissionsOptions {
        prompt: true,
        ..Default::default()
      },
    )
    .unwrap();
    let main_perms =
      PermissionsContainer::new(Arc::new(parser.clone()), main_perms);
    prompt_value.set(false);
    assert!(main_perms
      .inner
      .lock()
      .write
      .check(&parser.parse_path_query("foo").unwrap().into_write(), None)
      .is_err());
    let worker_perms = main_perms
      .create_child_permissions(ChildPermissionsArg::none())
      .unwrap();
    assert_eq!(
      worker_perms.inner.lock().write.flag_denied_list.clone(),
      main_perms.inner.lock().write.flag_denied_list
    );
  }

  #[test]
  fn test_host_parse() {
    let hosts = &[
      ("deno.land", Some(Host::Fqdn(fqdn!("deno.land")))),
      ("DENO.land", Some(Host::Fqdn(fqdn!("deno.land")))),
      ("deno.land.", Some(Host::Fqdn(fqdn!("deno.land")))),
      (
        "1.1.1.1",
        Some(Host::Ip(IpAddr::V4(Ipv4Addr::new(1, 1, 1, 1)))),
      ),
      (
        "::1",
        Some(Host::Ip(IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1)))),
      ),
      (
        "[::1]",
        Some(Host::Ip(IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1)))),
      ),
      ("[::1", None),
      ("::1]", None),
      ("deno. land", None),
      ("1. 1.1.1", None),
      ("1.1.1.1.", None),
      ("1::1.", None),
      ("deno.land.", Some(Host::Fqdn(fqdn!("deno.land")))),
      (".deno.land", None),
      (
        "::ffff:1.1.1.1",
        Some(Host::Ip(IpAddr::V6(Ipv6Addr::new(
          0, 0, 0, 0, 0, 0xffff, 0x0101, 0x0101,
        )))),
      ),
    ];

    for (host_str, expected) in hosts {
      assert_eq!(Host::parse(host_str).ok(), *expected, "{host_str}");
    }
  }

  #[test]
  fn test_net_descriptor_parse() {
    let cases = &[
      (
        "deno.land",
        Some(NetDescriptor(Host::Fqdn(fqdn!("deno.land")), None)),
      ),
      (
        "DENO.land",
        Some(NetDescriptor(Host::Fqdn(fqdn!("deno.land")), None)),
      ),
      (
        "deno.land:8000",
        Some(NetDescriptor(Host::Fqdn(fqdn!("deno.land")), Some(8000))),
      ),
      ("deno.land:", None),
      ("deno.land:a", None),
      ("deno. land:a", None),
      ("deno.land.: a", None),
      (
        "1.1.1.1",
        Some(NetDescriptor(
          Host::Ip(IpAddr::V4(Ipv4Addr::new(1, 1, 1, 1))),
          None,
        )),
      ),
      ("1.1.1.1.", None),
      ("1.1.1.1..", None),
      (
        "1.1.1.1:8000",
        Some(NetDescriptor(
          Host::Ip(IpAddr::V4(Ipv4Addr::new(1, 1, 1, 1))),
          Some(8000),
        )),
      ),
      ("::", None),
      (":::80", None),
      ("::80", None),
      (
        "[::]",
        Some(NetDescriptor(
          Host::Ip(IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0))),
          None,
        )),
      ),
      ("[::1", None),
      ("::1]", None),
      ("::1]", None),
      ("[::1]:", None),
      ("[::1]:a", None),
      (
        "[::1]:443",
        Some(NetDescriptor(
          Host::Ip(IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1))),
          Some(443),
        )),
      ),
      ("", None),
      ("deno.land..", None),
    ];

    for (input, expected) in cases {
      assert_eq!(NetDescriptor::parse(input).ok(), *expected, "'{input}'");
    }
  }

  #[test]
  fn test_denies_run_name() {
    let cases = [
      #[cfg(windows)]
      ("deno", "C:\\deno.exe", true),
      #[cfg(windows)]
      ("deno", "C:\\sub\\deno.cmd", true),
      #[cfg(windows)]
      ("deno", "C:\\sub\\DeNO.cmd", true),
      #[cfg(windows)]
      ("DEno", "C:\\sub\\deno.cmd", true),
      #[cfg(windows)]
      ("deno", "C:\\other\\sub\\deno.batch", true),
      #[cfg(windows)]
      ("deno", "C:\\other\\sub\\deno", true),
      #[cfg(windows)]
      ("denort", "C:\\other\\sub\\deno.exe", false),
      ("deno", "/home/test/deno", true),
      ("deno", "/home/test/denot", false),
    ];
    for (name, cmd_path, denies) in cases {
      assert_eq!(
        denies_run_name(name, &PathBuf::from(cmd_path)),
        denies,
        "{} {}",
        name,
        cmd_path
      );
    }
  }
}