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// Copyright 2019 Jordan Petridis <jordan@centricular.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//
// SPDX-License-Identifier: MIT
#![allow(clippy::non_send_fields_in_send_ty, unused_doc_comments)]
/**
* plugin-sodium:
*
* Since: plugins-rs-0.5.0
*/
use gst::glib;
const TYPEFIND_HEADER: &[u8; 12] = b"gst-sodium10";
// `core::slice::<impl [T]>::len` is not yet stable as a const fn
// const TYPEFIND_HEADER_SIZE: usize = TYPEFIND_HEADER.len();
const TYPEFIND_HEADER_SIZE: usize = 12;
/// Encryted steams use an offset at the start to store the block_size
/// and the nonce that was used.
const HEADERS_SIZE: usize =
TYPEFIND_HEADER_SIZE + sodiumoxide::crypto::box_::NONCEBYTES + std::mem::size_of::<u32>();
mod decrypter;
mod encrypter;
fn typefind_register(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
use gst::{Caps, TypeFind, TypeFindProbability};
TypeFind::register(
Some(plugin),
"sodium_encrypted_typefind",
gst::Rank::None,
None,
Some(&Caps::builder("application/x-sodium-encrypted").build()),
|typefind| {
if let Some(data) = typefind.peek(0, TYPEFIND_HEADER_SIZE as u32) {
if data == TYPEFIND_HEADER {
typefind.suggest(
TypeFindProbability::Maximum,
&Caps::builder("application/x-sodium-encrypted").build(),
);
}
}
},
)
}
fn plugin_init(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
encrypter::register(plugin)?;
decrypter::register(plugin)?;
typefind_register(plugin)?;
Ok(())
}
gst::plugin_define!(
sodium,
env!("CARGO_PKG_DESCRIPTION"),
plugin_init,
concat!(env!("CARGO_PKG_VERSION"), "-", env!("COMMIT_ID")),
"MIT/X11",
env!("CARGO_PKG_NAME"),
env!("CARGO_PKG_NAME"),
env!("CARGO_PKG_REPOSITORY"),
env!("BUILD_REL_DATE")
);
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