nushell/crates/nu-command/src/strings/base/base64.rs
Andrej Kolchin 5af95c91af Lint
2024-07-23 21:34:40 +03:00

159 lines
3.8 KiB
Rust

use data_encoding::Encoding;
use nu_engine::command_prelude::*;
fn get_encoding_from_flags(url: bool, nopad: bool) -> Encoding {
match (url, nopad) {
(false, false) => data_encoding::BASE64,
(false, true) => data_encoding::BASE64_NOPAD,
(true, false) => data_encoding::BASE64URL,
(true, true) => data_encoding::BASE64URL_NOPAD,
}
}
fn get_encoding(
engine_state: &EngineState,
stack: &mut Stack,
call: &Call,
) -> Result<Encoding, ShellError> {
let url = call.has_flag(engine_state, stack, "url")?;
let nopad = call.has_flag(engine_state, stack, "nopad")?;
Ok(get_encoding_from_flags(url, nopad))
}
fn get_encoding_const(working_set: &StateWorkingSet, call: &Call) -> Result<Encoding, ShellError> {
let url = call.has_flag_const(working_set, "url")?;
let nopad = call.has_flag_const(working_set, "nopad")?;
Ok(get_encoding_from_flags(url, nopad))
}
#[derive(Clone)]
pub struct DecodeBase64;
impl Command for DecodeBase64 {
fn name(&self) -> &str {
"decode base64"
}
fn signature(&self) -> Signature {
Signature::build("decode base64")
.input_output_types(vec![(Type::String, Type::Binary)])
.allow_variants_without_examples(true)
.switch("url", "Decode the URL-safe Base64 version.", None)
.switch("nopad", "Reject padding.", None)
.category(Category::Formats)
}
fn usage(&self) -> &str {
"TODO"
}
fn extra_usage(&self) -> &str {
"TODO"
}
fn examples(&self) -> Vec<Example> {
vec![]
}
fn is_const(&self) -> bool {
true
}
fn run(
&self,
engine_state: &EngineState,
stack: &mut Stack,
call: &Call,
input: PipelineData,
) -> Result<PipelineData, ShellError> {
let encoding = get_encoding(engine_state, stack, call)?;
super::decode(encoding, call.head, input)
}
fn run_const(
&self,
working_set: &StateWorkingSet,
call: &Call,
input: PipelineData,
) -> Result<PipelineData, ShellError> {
let encoding = get_encoding_const(working_set, call)?;
super::decode(encoding, call.head, input)
}
}
#[derive(Clone)]
pub struct EncodeBase64;
impl Command for EncodeBase64 {
fn name(&self) -> &str {
"encode base64"
}
fn signature(&self) -> Signature {
Signature::build("encode base64")
.input_output_types(vec![
(Type::String, Type::String),
(Type::Binary, Type::String),
])
.allow_variants_without_examples(true)
.switch("url", "Use the URL-safe Base64 version.", None)
.switch("nopad", "Don't pad the output.", None)
.category(Category::Formats)
}
fn usage(&self) -> &str {
"TODO"
}
fn extra_usage(&self) -> &str {
"TODO"
}
fn examples(&self) -> Vec<Example> {
vec![]
}
fn is_const(&self) -> bool {
true
}
fn run(
&self,
engine_state: &EngineState,
stack: &mut Stack,
call: &Call,
input: PipelineData,
) -> Result<PipelineData, ShellError> {
let encoding = get_encoding(engine_state, stack, call)?;
super::encode(encoding, call.head, input)
}
fn run_const(
&self,
working_set: &StateWorkingSet,
call: &Call,
input: PipelineData,
) -> Result<PipelineData, ShellError> {
let encoding = get_encoding_const(working_set, call)?;
super::encode(encoding, call.head, input)
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_examples_decode() {
crate::test_examples(DecodeBase64)
}
#[test]
fn test_examples_encode() {
crate::test_examples(EncodeBase64)
}
}