asdelafsljajkhsspkehdahslhlsdrssklwjolhjfksaoajhhkd

8 files changed, 395 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/.gitignore
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diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..fd1d55f
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,237 @@
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..66de164
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,7 @@
+[workspace]
+
+resolver = "2"
+members = [
+    "lib",
+    "cli"
+]
diff --git a/Readme.md b/Readme.md
new file mode 100644
index 0000000..73e9a24
--- /dev/null
+++ b/Readme.md
@@ -0,0 +1,11 @@
+# base-keysmash
+
+the implementation is sloppy and cursed, but honestly, what did you expect?
+
+~~~shell
+> echo "you're cute!" > base_keysmash
+adfsfkeidlfjljshdeljthoskishdhhjdhljlssstsasksjhkhihakk
+~~~
+
+With thanks to [May's talk at emf 2022](https://media.ccc.de/v/emf2022-237-asdkfldsalkasdf-keysmashes-sexuality)
+and Gretchen McCulloch's *Because Internet: Understanding the New Rules of Language*.
diff --git a/cli/Cargo.toml b/cli/Cargo.toml
new file mode 100644
index 0000000..8ab1a10
--- /dev/null
+++ b/cli/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "base-keysmash-cli"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+base-keysmash = { path = "../lib" }
+clap = { version = "4.4", features = [ "derive" ] }
diff --git a/cli/src/main.rs b/cli/src/main.rs
new file mode 100644
index 0000000..77c56de
--- /dev/null
+++ b/cli/src/main.rs
@@ -0,0 +1,28 @@
+
+use clap::Parser;
+use std::io::BufRead;
+use std::io::Write;
+
+#[derive(Parser, Debug)]
+struct Args {
+    #[arg(short)]
+    decode: bool
+}
+
+
+fn main() {
+    let args = Args::parse();
+
+    let mut stdin = std::io::stdin().lock();
+    let mut input = Vec::new();
+    stdin.read_until(0, &mut input).unwrap();
+
+    let output = if args.decode {
+        let input = input.into_iter().filter(|s| s.is_ascii() && !s.is_ascii_whitespace()).collect::<Vec<u8>>();
+        base_keysmash::decode(&input[..])
+    } else {
+        base_keysmash::encode(&input)
+    };
+
+    std::io::stdout().lock().write_all(&output).unwrap();
+}
diff --git a/lib/Cargo.toml b/lib/Cargo.toml
new file mode 100644
index 0000000..904ad4d
--- /dev/null
+++ b/lib/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "base-keysmash"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+fastrand = "2.0"
diff --git a/lib/src/lib.rs b/lib/src/lib.rs
new file mode 100644
index 0000000..a8d48b6
--- /dev/null
+++ b/lib/src/lib.rs
@@ -0,0 +1,92 @@
+
+
+const HEADERS: [&[u8]; 3] = [b"asd", b"adf", b"ads"];
+const HOME_RIGHT: [u8; 4] = [b'a',b's',b'd',b'f'];
+const HOME_LEFT: [u8; 4] = [b'h',b'j',b'k',b'l'];
+const ABOVE_RIGHT: [u8; 4] = [b'w',b'e',b'r',b't'];
+const ABOVE_LEFT: [u8; 4] = [b'u',b'i',b'o',b'p'];
+
+pub fn encode(buf: &[u8]) -> Vec<u8> {
+    let mut out = Vec::new();
+
+    let h = HEADERS[fastrand::usize(..HEADERS.len())];
+    for s in h {
+        out.push(*s);
+    }
+
+
+    for byte in buf {
+        let stuff = encode_byte(*byte);
+        for b in stuff {
+            out.push(b);
+        }
+    }
+    out
+}
+
+fn encode_byte(byte: u8) -> [u8; 4] {
+    [some_dict()[((byte & 0b11000000) >> 6) as usize],
+     some_dict()[((byte & 0b00110000) >> 4) as usize],
+     some_dict()[((byte & 0b00001100) >> 2) as usize],
+     some_dict()[(byte & 0b00000011) as usize]
+    ]
+}
+
+fn some_dict() -> &'static [u8; 4] {
+    let q = fastrand::usize(0..10);
+    if q < 4 {
+        return &HOME_RIGHT
+    }
+    if q < 8 {
+        return &HOME_LEFT
+    }
+    if q < 9 {
+        return &ABOVE_RIGHT
+    }
+    return &ABOVE_LEFT
+}
+
+pub fn decode(buf: &[u8]) -> Vec<u8> {
+    let buf = &buf[3..];
+
+    let mut out = Vec::new();
+    for pair in buf.chunks(4) {
+        out.push((decode_sym(pair[0]) << 6)
+            + (decode_sym(pair[1]) << 4)
+            + (decode_sym(pair[2]) << 2)
+            + decode_sym(pair[3]));
+    }
+    out
+}
+
+pub fn decode_sym(sym: u8) -> u8 {
+    let find = |d: &[u8; 4]| -> Option<u8> {
+        d.iter().enumerate().find(|s| s.1 == &sym).map(|s| s.0 as u8)
+    };
+    find(&HOME_RIGHT)
+        .or_else(|| find(&HOME_LEFT))
+        .or_else(|| find(&ABOVE_RIGHT))
+        .or_else(|| find(&ABOVE_LEFT))
+        .unwrap()
+}
+
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        let hello = b"hello, world!";
+        assert_eq!(&hello[..], &decode(&encode(hello)));
+    }
+
+    #[test]
+    fn random() {
+        for _ in 0..1000 {
+            let mut buf = vec![0; fastrand::usize(..1000)];
+            buf.iter_mut().for_each(|s| *s = fastrand::u8(..));
+            assert_eq!(&buf[..], &decode(&encode(&buf)));
+        }
+    }
+}