Finish Base64
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parent
1f062c3b90
commit
7a5365d7f4
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@ -1,5 +1,34 @@
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use data_encoding::Encoding;
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use nu_engine::command_prelude::*;
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fn get_encoding_from_flags(url: bool, nopad: bool) -> Encoding {
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match (url, nopad) {
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(false, false) => data_encoding::BASE64,
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(false, true) => data_encoding::BASE64_NOPAD,
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(true, false) => data_encoding::BASE64URL,
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(true, true) => data_encoding::BASE64URL_NOPAD,
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}
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}
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fn get_encoding(
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engine_state: &EngineState,
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stack: &mut Stack,
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call: &Call,
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) -> Result<Encoding, ShellError> {
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let url = call.has_flag(engine_state, stack, "url")?;
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let nopad = call.has_flag(engine_state, stack, "nopad")?;
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Ok(get_encoding_from_flags(url, nopad))
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}
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fn get_encoding_const(working_set: &StateWorkingSet, call: &Call) -> Result<Encoding, ShellError> {
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let url = call.has_flag_const(working_set, "url")?;
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let nopad = call.has_flag_const(working_set, "nopad")?;
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Ok(get_encoding_from_flags(url, nopad))
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}
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#[derive(Clone)]
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pub struct DecodeBase64;
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@ -12,12 +41,13 @@ impl Command for DecodeBase64 {
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Signature::build("decode base64")
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.input_output_types(vec![(Type::String, Type::Binary)])
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.allow_variants_without_examples(true)
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.required("encoding", SyntaxShape::String, "encoding to use")
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.switch("url", "Decode the URL-safe Base64 version.", None)
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.switch("nopad", "Reject padding.", None)
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.category(Category::Formats)
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}
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fn usage(&self) -> &str {
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"Decode a value."
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"TODO"
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}
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fn extra_usage(&self) -> &str {
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@ -39,7 +69,8 @@ impl Command for DecodeBase64 {
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call: &Call,
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input: PipelineData,
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) -> Result<PipelineData, ShellError> {
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todo!()
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let encoding = get_encoding(engine_state, stack, call)?;
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super::decode(encoding, call.head, input)
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}
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fn run_const(
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@ -48,7 +79,8 @@ impl Command for DecodeBase64 {
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call: &Call,
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input: PipelineData,
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) -> Result<PipelineData, ShellError> {
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todo!()
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let encoding = get_encoding_const(working_set, call)?;
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super::decode(encoding, call.head, input)
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}
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}
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@ -72,7 +104,7 @@ impl Command for EncodeBase64 {
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}
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fn usage(&self) -> &str {
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"Encode a value."
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"TODO"
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}
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fn extra_usage(&self) -> &str {
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@ -94,7 +126,8 @@ impl Command for EncodeBase64 {
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call: &Call,
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input: PipelineData,
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) -> Result<PipelineData, ShellError> {
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todo!()
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let encoding = get_encoding(engine_state, stack, call)?;
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super::encode(encoding, call.head, input)
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}
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fn run_const(
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@ -103,7 +136,8 @@ impl Command for EncodeBase64 {
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call: &Call,
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input: PipelineData,
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) -> Result<PipelineData, ShellError> {
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todo!()
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let encoding = get_encoding_const(working_set, call)?;
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super::encode(encoding, call.head, input)
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}
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}
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