dataurl

CLI tool / Rust crate for converting files and text into data URLs and back

---

Usage (CLI)

dataurl "some text"

dataurl -d 'data:text/html,text<a id%3D"b">ok</a>?a=v#f' > index.html

dataurl -b -i picture.png

cat file.txt | dataurl -i - -o - | dataurl -d

cat file.png | dataurl

Flags and options

• -b: Encode data using base64
• -c: Use custom charset
• -d: Attempt to parse input, output resulting data
• -f: Append fragment
• -i: Specify file to read data from (use - for STDIN)
• -o: Provide file to write output to (use - for STDOUT)
• -t: Adjust media type

---

Usage (crate)

use dataurl::DataUrl;

let data_url: DataUrl = DataUrl::parse("data:,Hello,%20World!")?;

assert_eq!(data_url.media_type(), "text/plain".to_string());
assert_eq!(data_url.media_type_no_default(), None);
assert_eq!(data_url.charset(), "US-ASCII".to_string());
assert_eq!(data_url.charset_no_default(), None);
assert!(!data_url.is_base64_encoded());
assert_eq!(data_url.data(), [72, 101, 108, 108, 111, 44, 32, 87, 111, 114, 108, 100, 33]);
assert_eq!(data_url.fragment(), None);
assert_eq!(data_url.to_string(), "data:,Hello%2C%20World%21");
assert_eq!(data_url.text(), "Hello, World!");

---

Installation

Using Cargo

cargo install dataurl

Using containers

docker build -t Y2Z/dataurl .
sudo install -b dist/run-in-container.sh /usr/local/bin/dataurl

From source

git clone https://github.com/Y2Z/dataurl.git
cd dataurl
make install

Using pre-built binaries (Windows, ARM-based devices, etc)

Every release contains pre-built binaries for Windows, GNU/Linux, as well as platforms with non-standart CPU architecture.

---

References

• RFC 2397 (The "data" URL scheme)
• RFC 6838 (Media Type Specifications and Registration Procedures)

---

License

To the extent possible under law, the author(s) have dedicated all copyright related and neighboring rights to this software to the public domain worldwide. This software is distributed without any warranty.