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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /third_party/rust/base64/examples/base64.rs | |
parent | Initial commit. (diff) | |
download | firefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | third_party/rust/base64/examples/base64.rs | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/third_party/rust/base64/examples/base64.rs b/third_party/rust/base64/examples/base64.rs new file mode 100644 index 0000000000..cba745b05e --- /dev/null +++ b/third_party/rust/base64/examples/base64.rs @@ -0,0 +1,89 @@ +use std::fs::File; +use std::io::{self, Read}; +use std::path::PathBuf; +use std::process; +use std::str::FromStr; + +use base64::{read, write}; +use structopt::StructOpt; + +#[derive(Debug, StructOpt)] +enum CharacterSet { + Standard, + UrlSafe, +} + +impl Default for CharacterSet { + fn default() -> Self { + CharacterSet::Standard + } +} + +impl Into<base64::Config> for CharacterSet { + fn into(self) -> base64::Config { + match self { + CharacterSet::Standard => base64::STANDARD, + CharacterSet::UrlSafe => base64::URL_SAFE, + } + } +} + +impl FromStr for CharacterSet { + type Err = String; + fn from_str(s: &str) -> Result<CharacterSet, String> { + match s { + "standard" => Ok(CharacterSet::Standard), + "urlsafe" => Ok(CharacterSet::UrlSafe), + _ => Err(format!("charset '{}' unrecognized", s)), + } + } +} + +/// Base64 encode or decode FILE (or standard input), to standard output. +#[derive(Debug, StructOpt)] +struct Opt { + /// decode data + #[structopt(short = "d", long = "decode")] + decode: bool, + /// The character set to choose. Defaults to the standard base64 character set. + /// Supported character sets include "standard" and "urlsafe". + #[structopt(long = "charset")] + charset: Option<CharacterSet>, + /// The file to encode/decode. + #[structopt(parse(from_os_str))] + file: Option<PathBuf>, +} + +fn main() { + let opt = Opt::from_args(); + let stdin; + let mut input: Box<dyn Read> = match opt.file { + None => { + stdin = io::stdin(); + Box::new(stdin.lock()) + } + Some(ref f) if f.as_os_str() == "-" => { + stdin = io::stdin(); + Box::new(stdin.lock()) + } + Some(f) => Box::new(File::open(f).unwrap()), + }; + let config = opt.charset.unwrap_or_default().into(); + let stdout = io::stdout(); + let mut stdout = stdout.lock(); + let r = if opt.decode { + let mut decoder = read::DecoderReader::new(&mut input, config); + io::copy(&mut decoder, &mut stdout) + } else { + let mut encoder = write::EncoderWriter::new(&mut stdout, config); + io::copy(&mut input, &mut encoder) + }; + if let Err(e) = r { + eprintln!( + "Base64 {} failed with {}", + if opt.decode { "decode" } else { "encode" }, + e + ); + process::exit(1); + } +} |