a4e667de10
Single-commit clean baseline after security scrub of niche-tells, project codenames, internal jargon, and contributor-email leaks. Contents: - 100 Rust crates (_primitives/_rust/) - 37 agent manifests (_manifests/) + generated specs (_generated/) - 67 user-invocable skills (skills/) - 33 hooks (hooks/) - Composition blocks (_blocks/) - Documentation (docs/, README.md) - TS adapter packages (_ts_packages/) - Assembler (_assembler/) - Roles (_roles/) - Templates (_templates/) - Forgejo CI (.forgejo/) Author: Denis Parfionovich <info@greendragon.info> License: see LICENSE.
49 lines
1.3 KiB
Rust
49 lines
1.3 KiB
Rust
//! Minimal base64 encoder. Vultr `--userdata` takes base64. We don't pull
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//! in the `base64` crate for a single call site.
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const TABLE: &[u8; 64] =
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b"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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pub fn encode(raw: &[u8]) -> String {
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let mut out = String::with_capacity((raw.len() + 2) / 3 * 4);
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for chunk in raw.chunks(3) {
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let b0 = chunk[0];
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let b1 = chunk.get(1).copied().unwrap_or(0);
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let b2 = chunk.get(2).copied().unwrap_or(0);
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out.push(TABLE[(b0 >> 2) as usize] as char);
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out.push(TABLE[(((b0 & 0x03) << 4) | (b1 >> 4)) as usize] as char);
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out.push(if chunk.len() > 1 {
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TABLE[(((b1 & 0x0f) << 2) | (b2 >> 6)) as usize] as char
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} else {
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'='
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});
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out.push(if chunk.len() > 2 {
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TABLE[(b2 & 0x3f) as usize] as char
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} else {
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'='
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});
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}
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out
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn empty() {
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assert_eq!(encode(b""), "");
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}
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#[test]
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fn padding() {
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assert_eq!(encode(b"a"), "YQ==");
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assert_eq!(encode(b"ab"), "YWI=");
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assert_eq!(encode(b"abc"), "YWJj");
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}
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#[test]
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fn hello() {
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assert_eq!(encode(b"Hello, World!"), "SGVsbG8sIFdvcmxkIQ==");
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}
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}
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