110 lines
3.3 KiB
Rust
110 lines
3.3 KiB
Rust
use super::autoenv::Trusted;
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use crate::commands::WholeStreamCommand;
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use crate::prelude::*;
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use nu_errors::ShellError;
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use nu_protocol::SyntaxShape;
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use nu_protocol::{Primitive, ReturnSuccess, Signature, UntaggedValue, Value};
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use std::io::Read;
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use std::{fs, path::PathBuf};
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pub struct AutoenvUnTrust;
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#[async_trait]
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impl WholeStreamCommand for AutoenvUnTrust {
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fn name(&self) -> &str {
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"autoenv untrust"
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}
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fn signature(&self) -> Signature {
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Signature::build("autoenv untrust").optional(
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"dir",
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SyntaxShape::String,
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"Directory to disallow",
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)
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}
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fn usage(&self) -> &str {
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"Untrust a .nu-env file in the current or given directory"
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}
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async fn run(
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&self,
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args: CommandArgs,
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registry: &CommandRegistry,
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) -> Result<OutputStream, ShellError> {
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let tag = args.call_info.name_tag.clone();
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let file_to_untrust = match args.call_info.evaluate(registry).await?.args.nth(0) {
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Some(Value {
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value: UntaggedValue::Primitive(Primitive::String(ref path)),
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tag: _,
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}) => {
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let mut dir = fs::canonicalize(path)?;
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dir.push(".nu-env");
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dir
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}
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_ => {
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let mut dir = std::env::current_dir()?;
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dir.push(".nu-env");
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dir
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}
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};
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let config_path = config::default_path_for(&Some(PathBuf::from("nu-env.toml")))?;
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let mut file = match std::fs::OpenOptions::new()
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.read(true)
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.create(true)
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.write(true)
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.open(config_path.clone())
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{
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Ok(p) => p,
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Err(_) => {
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return Err(ShellError::untagged_runtime_error(
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"Couldn't open nu-env.toml",
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));
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}
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};
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let mut doc = String::new();
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file.read_to_string(&mut doc)?;
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let mut allowed: Trusted = toml::from_str(doc.as_str()).unwrap_or_else(|_| Trusted::new());
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let file_to_untrust = file_to_untrust.to_string_lossy().to_string();
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if allowed.files.remove(&file_to_untrust).is_none() {
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return
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Err(ShellError::untagged_runtime_error(
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"No .nu-env file to untrust in the given directory. Is it missing, or already untrusted?",
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));
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}
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let tomlstr = toml::to_string(&allowed).or_else(|_| {
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Err(ShellError::untagged_runtime_error(
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"Couldn't serialize allowed dirs to nu-env.toml",
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))
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})?;
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fs::write(config_path, tomlstr).expect("Couldn't write to toml file");
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Ok(OutputStream::one(ReturnSuccess::value(
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UntaggedValue::string(".nu-env untrusted!").into_value(tag),
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)))
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}
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fn is_binary(&self) -> bool {
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false
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}
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fn examples(&self) -> Vec<Example> {
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vec![
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Example {
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description: "Disallow .nu-env file in current directory",
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example: "autoenv untrust",
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result: None,
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},
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Example {
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description: "Disallow .nu-env file in directory foo",
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example: "autoenv untrust foo",
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result: None,
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},
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]
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}
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}
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