gst-plugins-rs/generic/sodium/tests/decrypter.rs

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// decrypter.rs
//
// 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
use glib::prelude::*;
use gst::prelude::*;
use std::sync::{Arc, Mutex};
use std::path::PathBuf;
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use pretty_assertions::assert_eq;
use once_cell::sync::Lazy;
static SENDER_PUBLIC: Lazy<glib::Bytes> = Lazy::new(|| {
let public = [
66, 248, 199, 74, 216, 55, 228, 116, 52, 17, 147, 56, 65, 130, 134, 148, 157, 153, 235,
171, 179, 147, 120, 71, 100, 243, 133, 120, 160, 14, 111, 65,
];
glib::Bytes::from_owned(public)
});
static RECEIVER_PRIVATE: Lazy<glib::Bytes> = Lazy::new(|| {
let secret = [
54, 221, 217, 54, 94, 235, 167, 2, 187, 249, 71, 31, 59, 27, 19, 166, 78, 236, 102, 48, 29,
142, 41, 189, 22, 146, 218, 69, 147, 165, 240, 235,
];
glib::Bytes::from_owned(secret)
});
fn init() {
use std::sync::Once;
static INIT: Once = Once::new();
INIT.call_once(|| {
gst::init().unwrap();
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gstsodium::plugin_register_static().unwrap();
});
}
#[test]
fn test_pipeline() {
init();
let pipeline = gst::Pipeline::new(Some("sodium-decrypter-test"));
let input_path = {
let mut r = PathBuf::new();
r.push(env!("CARGO_MANIFEST_DIR"));
r.push("tests");
r.push("encrypted_sample");
r.set_extension("enc");
r
};
let filesrc = gst::ElementFactory::make("filesrc", None).unwrap();
filesrc
.set_property("location", &input_path.to_str().unwrap())
.expect("failed to set property");
let dec = gst::ElementFactory::make("sodiumdecrypter", None).unwrap();
dec.set_property("sender-key", &*SENDER_PUBLIC)
.expect("failed to set property");
dec.set_property("receiver-key", &*RECEIVER_PRIVATE)
.expect("failed to set property");
// the typefind element here is cause the decrypter only supports
// operating in pull mode bu the filesink wants push-mode.
let typefind = gst::ElementFactory::make("typefind", None).unwrap();
let sink = gst::ElementFactory::make("appsink", None).unwrap();
pipeline
.add_many(&[&filesrc, &dec, &typefind, &sink])
.expect("failed to add elements to the pipeline");
gst::Element::link_many(&[&filesrc, &dec, &typefind, &sink])
.expect("failed to link the elements");
let adapter = Arc::new(Mutex::new(gst_base::UniqueAdapter::new()));
let sink = sink.downcast::<gst_app::AppSink>().unwrap();
let adapter_clone = adapter.clone();
sink.set_callbacks(
gst_app::AppSinkCallbacks::builder()
// Add a handler to the "new-sample" signal.
.new_sample(move |appsink| {
// Pull the sample in question out of the appsink's buffer.
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let sample = appsink.pull_sample().map_err(|_| gst::FlowError::Eos)?;
let buffer = sample.get_buffer().ok_or(gst::FlowError::Error)?;
let mut adapter = adapter_clone.lock().unwrap();
adapter.push(buffer.to_owned());
Ok(gst::FlowSuccess::Ok)
})
.build(),
);
pipeline
.set_state(gst::State::Playing)
.expect("Unable to set the pipeline to the `Playing` state");
let bus = pipeline.get_bus().unwrap();
for msg in bus.iter_timed(gst::CLOCK_TIME_NONE) {
use gst::MessageView;
match msg.view() {
MessageView::Error(err) => {
eprintln!(
"Error received from element {:?}: {}",
err.get_src().map(|s| s.get_path_string()),
err.get_error()
);
eprintln!("Debugging information: {:?}", err.get_debug());
unreachable!();
}
MessageView::Eos(..) => break,
_ => (),
}
}
pipeline
.set_state(gst::State::Null)
.expect("Unable to set the pipeline to the `Playing` state");
let expected_output = include_bytes!("sample.mp3");
let mut adapter = adapter.lock().unwrap();
let available = adapter.available();
assert_eq!(available, expected_output.len());
let output_buffer = adapter.take_buffer(available).unwrap();
let output = output_buffer.map_readable().unwrap();
assert_eq!(expected_output.as_ref(), output.as_ref());
}
#[test]
fn test_pull_range() {
init();
let pipeline = gst::Pipeline::new(Some("sodium-decrypter-pull-range-test"));
let input_path = {
let mut r = PathBuf::new();
r.push(env!("CARGO_MANIFEST_DIR"));
r.push("tests");
r.push("encrypted_sample");
r.set_extension("enc");
r
};
let filesrc = gst::ElementFactory::make("filesrc", None).unwrap();
filesrc
.set_property("location", &input_path.to_str().unwrap())
.expect("failed to set property");
let dec = gst::ElementFactory::make("sodiumdecrypter", None).unwrap();
dec.set_property("sender-key", &*SENDER_PUBLIC)
.expect("failed to set property");
dec.set_property("receiver-key", &*RECEIVER_PRIVATE)
.expect("failed to set property");
pipeline
.add_many(&[&filesrc, &dec])
.expect("failed to add elements to the pipeline");
gst::Element::link_many(&[&filesrc, &dec]).expect("failed to link the elements");
// Activate in the pad in pull mode
pipeline
.set_state(gst::State::Ready)
.expect("Unable to set the pipeline to the `Playing` state");
let srcpad = dec.get_static_pad("src").unwrap();
srcpad.activate_mode(gst::PadMode::Pull, true).unwrap();
pipeline
.set_state(gst::State::Playing)
.expect("Unable to set the pipeline to the `Playing` state");
// Test that the decryptor is seekable
let mut q = gst::query::Seeking::new(gst::Format::Bytes);
srcpad.query(&mut q);
// get the seeking capabilities
let (seekable, start, stop) = q.get_result();
assert_eq!(seekable, true);
assert_eq!(
start,
gst::GenericFormattedValue::Bytes(gst::format::Bytes(Some(0)))
);
assert_eq!(
stop,
gst::GenericFormattedValue::Bytes(gst::format::Bytes(Some(6043)))
);
// do pulls
let expected_array_1 = [
255, 251, 192, 196, 0, 0, 13, 160, 37, 86, 116, 240, 0, 42, 73, 33, 43, 63, 61, 16, 128, 5,
53, 37, 220, 28, 225, 35, 16, 243, 140, 220, 4, 192, 2, 64, 14, 3, 144, 203, 67, 208, 244,
61, 70, 175, 103, 127, 28, 0,
];
let buf1 = srcpad.get_range(0, 50).unwrap();
assert_eq!(buf1.get_size(), 50);
let map1 = buf1.map_readable().unwrap();
assert_eq!(&map1[..], &expected_array_1[..]);
let expected_array_2 = [
255, 251, 192, 196, 0, 0, 13, 160, 37, 86, 116, 240, 0, 42, 73, 33, 43, 63, 61, 16, 128, 5,
53, 37, 220, 28, 225, 35, 16, 243, 140, 220, 4, 192, 2, 64, 14, 3, 144, 203, 67, 208, 244,
61, 70, 175, 103, 127, 28, 0, 0, 0, 0, 12, 60, 60, 60, 122, 0, 0, 0, 12, 195, 195, 195,
207, 192, 0, 0, 3, 113, 195, 199, 255, 255, 254, 97, 225, 225, 231, 160, 0, 0, 49, 24, 120,
120, 121, 232, 0, 0, 12, 252, 195, 195, 199, 128, 0, 0, 0,
];
let buf2 = srcpad.get_range(0, 100).unwrap();
assert_eq!(buf2.get_size(), 100);
let map2 = buf2.map_readable().unwrap();
assert_eq!(&map2[..], &expected_array_2[..]);
// compare the first 50 bytes of the two slices
// they should match
assert_eq!(&map1[..], &map2[..map1.len()]);
// request in the middle of a block
let buf = srcpad.get_range(853, 100).unwrap();
// result size doesn't include the block macs,
assert_eq!(buf.get_size(), 100);
// read till eos, this also will pull multiple blocks
let buf = srcpad.get_range(853, 42000).unwrap();
// 6031 (size of file) - 883 (requersted offset) - headers size - (numbler of blcks * block mac)
assert_eq!(buf.get_size(), 5054);
// read 0 bytes from the start
let buf = srcpad.get_range(0, 0).unwrap();
assert_eq!(buf.get_size(), 0);
// read 0 bytes somewhere in the middle
let buf = srcpad.get_range(4242, 0).unwrap();
assert_eq!(buf.get_size(), 0);
// read 0 bytes to eos
let res = srcpad.get_range(6003, 0);
assert_eq!(res, Err(gst::FlowError::Eos));
// read 100 bytes at eos
let res = srcpad.get_range(6003, 100);
assert_eq!(res, Err(gst::FlowError::Eos));
// read 100 bytes way past eos
let res = srcpad.get_range(424_242, 100);
assert_eq!(res, Err(gst::FlowError::Eos));
// read 10 bytes at eos -1, should return a single byte
let buf = srcpad.get_range(5906, 10).unwrap();
assert_eq!(buf.get_size(), 1);
pipeline
.set_state(gst::State::Null)
.expect("Unable to set the pipeline to the `Playing` state");
}
#[test]
fn test_state_changes() {
init();
// NullToReady without keys provided
{
let dec = gst::ElementFactory::make("sodiumdecrypter", None).unwrap();
assert!(dec.change_state(gst::StateChange::NullToReady).is_err());
// Set only receiver key
let dec = gst::ElementFactory::make("sodiumdecrypter", None).unwrap();
dec.set_property("receiver-key", &*RECEIVER_PRIVATE)
.expect("failed to set property");
assert!(dec.change_state(gst::StateChange::NullToReady).is_err());
// Set only sender key
let dec = gst::ElementFactory::make("sodiumdecrypter", None).unwrap();
dec.set_property("sender-key", &*SENDER_PUBLIC)
.expect("failed to set property");
assert!(dec.change_state(gst::StateChange::NullToReady).is_err());
}
// NullToReady, no nonce provided
{
let dec = gst::ElementFactory::make("sodiumdecrypter", None).unwrap();
dec.set_property("sender-key", &*SENDER_PUBLIC)
.expect("failed to set property");
dec.set_property("receiver-key", &*RECEIVER_PRIVATE)
.expect("failed to set property");
assert!(dec.change_state(gst::StateChange::NullToReady).is_ok());
}
// ReadyToNull
{
let dec = gst::ElementFactory::make("sodiumdecrypter", None).unwrap();
dec.set_property("sender-key", &*SENDER_PUBLIC)
.expect("failed to set property");
dec.set_property("receiver-key", &*RECEIVER_PRIVATE)
.expect("failed to set property");
assert!(dec.change_state(gst::StateChange::NullToReady).is_ok());
}
}