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MIT License
Copyright (c) [year] [fullname]
Permission is hereby granted, free of charge, to any person obtaining a copy
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SOFTWARE.

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Other casting clients that work with FCast are:
- Grayjay

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/target

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END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) 2023 Koen
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) 2023 Koen
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

44
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# What is FCast?
FCast is a protocol designed for wireless streaming of audio and video content between devices. Unlike alternative protocols like Chromecast and AirPlay, FCast is an open source protocol that allows for custom receiver implementations, enabling third-party developers to create their own receiver devices or integrate the FCast protocol into their own apps.
# Building
Setup a rust development environment and type:
```
cargo build
```
# Usage
Example usage of the fcast client.
```
# Play a mp4 video URL
./fcast -h localhost play --mime_type video/mp4 --url http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4 -t 10
# Play a DASH URL
./fcast -h localhost play --mime_type application/dash+xml --url https://dash.akamaized.net/digitalprimates/fraunhofer/480p_video/heaac_2_0_with_video/Sintel/sintel_480p_heaac2_0.mpd
# Play local DASH content
cat dash.mpd | ./fcast -h localhost play --mime_type application/dash+xml
# Pause playing
./fcast -h localhost pause
# Resume playback
./fcast -h localhost resume
# Seek to time 100
./fcast -h localhost seek -t 100
# Listen for playback updates
./fcast -h localhost listen
# Stop playback
./fcast -h localhost stop
# Set volume to half
./fcast -h localhost setvolume -v 0.5
```

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clients/terminal/src/fcastsession.rs Normal file
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use std::{net::TcpStream, io::{Write, Read}, sync::{atomic::{AtomicBool, Ordering}, Arc}};
use crate::models::{PlaybackUpdateMessage, VolumeUpdateMessage};
use serde::Serialize;
#[derive(Debug)]
enum SessionState {
Idle = 0,
WaitingForLength,
WaitingForData,
Disconnected,
}
#[derive(Debug)]
pub enum Opcode {
None = 0,
Play = 1,
Pause = 2,
Resume = 3,
Stop = 4,
Seek = 5,
PlaybackUpdate = 6,
VolumeUpdate = 7,
SetVolume = 8
}
impl Opcode {
fn from_u8(value: u8) -> Opcode {
match value {
0 => Opcode::None,
1 => Opcode::Play,
2 => Opcode::Pause,
3 => Opcode::Resume,
4 => Opcode::Stop,
5 => Opcode::Seek,
6 => Opcode::PlaybackUpdate,
7 => Opcode::VolumeUpdate,
8 => Opcode::SetVolume,
_ => panic!("Unknown value: {}", value),
}
}
}
const LENGTH_BYTES: usize = 4;
const MAXIMUM_PACKET_LENGTH: usize = 32000;
pub struct FCastSession<'a> {
buffer: Vec<u8>,
bytes_read: usize,
packet_length: usize,
stream: &'a TcpStream,
state: SessionState
}
impl<'a> FCastSession<'a> {
pub fn new(stream: &'a TcpStream) -> Self {
FCastSession {
buffer: vec![0; MAXIMUM_PACKET_LENGTH],
bytes_read: 0,
packet_length: 0,
stream,
state: SessionState::Idle
}
}
}
impl FCastSession<'_> {
pub fn send_message<T: Serialize>(&mut self, opcode: Opcode, message: T) -> Result<(), std::io::Error> {
let json = serde_json::to_string(&message)?;
let data = json.as_bytes();
let size = 1 + data.len();
let header_size = LENGTH_BYTES + 1;
let mut header = vec![0u8; header_size];
header[..LENGTH_BYTES].copy_from_slice(&(size as u32).to_le_bytes());
header[LENGTH_BYTES] = opcode as u8;
let packet = [header, data.to_vec()].concat();
println!("Sent {} bytes with (header size: {}, body size: {}).", packet.len(), header_size, data.len());
return self.stream.write_all(&packet);
}
pub fn send_empty(&mut self, opcode: Opcode) -> Result<(), std::io::Error> {
let json = String::new();
let data = json.as_bytes();
let size = 1 + data.len();
let mut header = vec![0u8; LENGTH_BYTES + 1];
header[..LENGTH_BYTES].copy_from_slice(&(size as u32).to_le_bytes());
header[LENGTH_BYTES] = opcode as u8;
let packet = [header, data.to_vec()].concat();
return self.stream.write_all(&packet);
}
pub fn receive_loop(&mut self, running: &Arc<AtomicBool>) -> Result<(), Box<dyn std::error::Error>> {
self.state = SessionState::WaitingForLength;
let mut buffer = [0u8; 1024];
while running.load(Ordering::SeqCst) {
let bytes_read = self.stream.read(&mut buffer)?;
self.process_bytes(&buffer[..bytes_read])?;
}
self.state = SessionState::Idle;
Ok(())
}
pub fn process_bytes(&mut self, received_bytes: &[u8]) -> Result<(), Box<dyn std::error::Error>> {
if received_bytes.is_empty() {
return Ok(());
}
let addr = match self.stream.peer_addr() {
Ok(a) => a.to_string(),
_ => String::new()
};
println!("{} bytes received from {}", received_bytes.len(), addr);
match self.state {
SessionState::WaitingForLength => self.handle_length_bytes(received_bytes)?,
SessionState::WaitingForData => self.handle_packet_bytes(received_bytes)?,
_ => println!("Data received is unhandled in current session state {:?}", self.state),
}
Ok(())
}
fn handle_length_bytes(&mut self, received_bytes: &[u8]) -> Result<(), Box<dyn std::error::Error>> {
let bytes_to_read = std::cmp::min(LENGTH_BYTES, received_bytes.len());
let bytes_remaining = received_bytes.len() - bytes_to_read;
self.buffer[self.bytes_read..self.bytes_read + bytes_to_read]
.copy_from_slice(&received_bytes[..bytes_to_read]);
self.bytes_read += bytes_to_read;
println!("handleLengthBytes: Read {} bytes from packet", bytes_to_read);
if self.bytes_read >= LENGTH_BYTES {
let addr = match self.stream.peer_addr() {
Ok(a) => a.to_string(),
_ => String::new()
};
self.state = SessionState::WaitingForData;
self.packet_length = u32::from_le_bytes(self.buffer[..LENGTH_BYTES].try_into()?) as usize;
self.bytes_read = 0;
println!("Packet length header received from {}: {}", addr, self.packet_length);
if self.packet_length > MAXIMUM_PACKET_LENGTH {
println!("Maximum packet length is 32kB, killing stream {}: {}", addr, self.packet_length);
self.stream.shutdown(std::net::Shutdown::Both)?;
self.state = SessionState::Disconnected;
return Err(format!("Stream killed due to packet length ({}) exceeding maximum 32kB packet size.", self.packet_length).into());
}
if bytes_remaining > 0 {
println!("{} remaining bytes {} pushed to handlePacketBytes", bytes_remaining, addr);
self.handle_packet_bytes(&received_bytes[bytes_to_read..])?;
}
}
Ok(())
}
fn handle_packet_bytes(&mut self, received_bytes: &[u8]) -> Result<(), Box<dyn std::error::Error>> {
let bytes_to_read = std::cmp::min(self.packet_length, received_bytes.len());
let bytes_remaining = received_bytes.len() - bytes_to_read;
self.buffer[self.bytes_read..self.bytes_read + bytes_to_read]
.copy_from_slice(&received_bytes[..bytes_to_read]);
self.bytes_read += bytes_to_read;
println!("handlePacketBytes: Read {} bytes from packet", bytes_to_read);
if self.bytes_read >= self.packet_length {
let addr = match self.stream.peer_addr() {
Ok(a) => a.to_string(),
_ => String::new()
};
println!("Packet finished receiving from {} of {} bytes.", addr, self.packet_length);
self.handle_packet()?;
self.state = SessionState::WaitingForLength;
self.packet_length = 0;
self.bytes_read = 0;
if bytes_remaining > 0 {
println!("{} remaining bytes {} pushed to handleLengthBytes", bytes_remaining, addr);
self.handle_length_bytes(&received_bytes[bytes_to_read..])?;
}
}
Ok(())
}
fn handle_packet(&mut self) -> Result<(), std::str::Utf8Error> {
let addr = match self.stream.peer_addr() {
Ok(a) => a.to_string(),
_ => String::new()
};
println!("Processing packet of {} bytes from {}", self.bytes_read, addr);
let opcode = Opcode::from_u8(self.buffer[0]);
let body = if self.packet_length > 1 {
Some(std::str::from_utf8(&self.buffer[1..self.packet_length])?)
} else {
None
};
println!("Received body: {:?}", body);
match opcode {
Opcode::PlaybackUpdate => {
if let Some(body_str) = body {
if let Ok(playback_update_msg) = serde_json::from_str::<PlaybackUpdateMessage>(body_str) {
println!("Received playback update {:?}", playback_update_msg);
}
}
}
Opcode::VolumeUpdate => {
if let Some(body_str) = body {
if let Ok(volume_update_msg) = serde_json::from_str::<VolumeUpdateMessage>(body_str) {
println!("Received volume update {:?}", volume_update_msg);
}
}
}
_ => {
println!("Error handling packet from {}", addr);
}
}
Ok(())
}
pub fn shutdown(&self) -> Result<(), std::io::Error> {
return self.stream.shutdown(std::net::Shutdown::Both);
}
}

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mod models;
mod fcastsession;
use clap::{App, Arg, SubCommand};
use std::{io::Read, net::TcpStream};
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::Arc;
use crate::fcastsession::Opcode;
use crate::models::SetVolumeMessage;
use crate::{models::{PlayMessage, SeekMessage}, fcastsession::FCastSession};
fn main() {
if let Err(e) = run() {
println!("Failed due to error: {}", e)
}
}
fn run() -> Result<(), Box<dyn std::error::Error>> {
let app = App::new("Media Control")
.about("Control media playback")
.arg(Arg::with_name("host")
.short('h')
.long("host")
.value_name("Host")
.help("The host address to send the command to")
.required(true)
.takes_value(true))
.arg(Arg::with_name("port")
.short('p')
.long("port")
.value_name("PORT")
.help("The port to send the command to")
.required(false)
.default_value("46899")
.takes_value(true))
.subcommand(SubCommand::with_name("play")
.about("Play media")
.arg(Arg::with_name("mime_type")
.short('m')
.long("mime_type")
.value_name("MIME_TYPE")
.help("Mime type (e.g., video/mp4)")
.required(true)
.takes_value(true)
)
.arg(Arg::with_name("url")
.short('u')
.long("url")
.value_name("URL")
.help("URL to the content")
.required(false)
.takes_value(true)
)
.arg(Arg::with_name("content")
.short('c')
.long("content")
.value_name("CONTENT")
.help("The actual content")
.required(false)
.takes_value(true)
)
.arg(Arg::with_name("timestamp")
.short('t')
.long("timestamp")
.value_name("TIMESTAMP")
.help("Timestamp to start playing")
.required(false)
.default_value("0")
.takes_value(true)
)
)
.subcommand(SubCommand::with_name("seek")
.about("Seek to a timestamp")
.arg(Arg::with_name("timestamp")
.short('t')
.long("timestamp")
.value_name("TIMESTAMP")
.help("Timestamp to start playing")
.required(true)
.takes_value(true)
),
)
.subcommand(SubCommand::with_name("pause").about("Pause media"))
.subcommand(SubCommand::with_name("resume").about("Resume media"))
.subcommand(SubCommand::with_name("stop").about("Stop media"))
.subcommand(SubCommand::with_name("listen").about("Listen to incoming events"))
.subcommand(SubCommand::with_name("setvolume").about("Set the volume")
.arg(Arg::with_name("volume")
.short('v')
.long("volume")
.value_name("VOLUME")
.help("Volume level (0-1)")
.required(true)
.takes_value(true))
);
let matches = app.get_matches();
let host = match matches.value_of("host") {
Some(s) => s,
_ => return Err("Host is required.".into())
};
let port = match matches.value_of("port") {
Some(s) => s,
_ => return Err("Port is required.".into())
};
println!("Connecting to host={} port={}...", host, port);
let stream = TcpStream::connect(format!("{}:{}", host, port))?;
let mut session = FCastSession::new(&stream);
println!("Connection established.");
if let Some(play_matches) = matches.subcommand_matches("play") {
let mut play_message = PlayMessage::new(
match play_matches.value_of("mime_type") {
Some(s) => s.to_string(),
_ => return Err("MIME type is required.".into())
},
match play_matches.value_of("url") {
Some(s) => Some(s.to_string()),
_ => None
},
match play_matches.value_of("content") {
Some(s) => Some(s.to_string()),
_ => None
},
match play_matches.value_of("timestamp") {
Some(s) => s.parse::<u64>().ok(),
_ => None
}
);
if play_message.content.is_none() && play_message.url.is_none() {
println!("Reading content from stdin...");
let mut buffer = String::new();
std::io::stdin().read_to_string(&mut buffer)?;
play_message.content = Some(buffer);
}
let json = serde_json::to_string(&play_message);
println!("Sent play {:?}", json);
session.send_message(Opcode::Play, Some(play_message))?;
} else if let Some(seek_matches) = matches.subcommand_matches("seek") {
let seek_message = SeekMessage::new(match seek_matches.value_of("timestamp") {
Some(s) => s.parse::<u64>()?,
_ => return Err("Timestamp is required.".into())
});
println!("Sent seek {:?}", seek_message);
session.send_message(Opcode::Seek, Some(seek_message))?;
} else if let Some(_) = matches.subcommand_matches("pause") {
println!("Sent pause");
session.send_empty(Opcode::Pause)?;
} else if let Some(_) = matches.subcommand_matches("resume") {
println!("Sent resume");
session.send_empty(Opcode::Resume)?;
} else if let Some(_) = matches.subcommand_matches("stop") {
println!("Sent stop");
session.send_empty(Opcode::Stop)?;
} else if let Some(_) = matches.subcommand_matches("listen") {
println!("Starter listening to events...");
let running = Arc::new(AtomicBool::new(true));
let r = running.clone();
ctrlc::set_handler(move || {
r.store(false, Ordering::SeqCst);
}).expect("Error setting Ctrl-C handler");
println!("Waiting for Ctrl+C...");
session.receive_loop(&running)?;
println!("Ctrl+C received, exiting...");
} else if let Some(setvolume_matches) = matches.subcommand_matches("setvolume") {
let setvolume_message = SetVolumeMessage::new(match setvolume_matches.value_of("volume") {
Some(s) => s.parse::<f64>()?,
_ => return Err("Timestamp is required.".into())
});
println!("Sent setvolume {:?}", setvolume_message);
session.send_message(Opcode::SetVolume, Some(setvolume_message))?;
} else {
println!("Invalid command. Use --help for more information.");
std::process::exit(1);
}
session.shutdown()?;
Ok(())
}

48
clients/terminal/src/models.rs Normal file
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use serde::{Serialize, Deserialize};
#[derive(Serialize, Debug)]
pub struct PlayMessage {
pub container: String,
pub url: Option<String>,
pub content: Option<String>,
pub time: Option<u64>,
}
impl PlayMessage {
pub fn new(container: String, url: Option<String>, content: Option<String>, time: Option<u64>) -> Self {
Self { container, url, content, time }
}
}
#[derive(Serialize, Debug)]
pub struct SeekMessage {
pub time: u64,
}
impl SeekMessage {
pub fn new(time: u64) -> Self {
Self { time }
}
}
#[derive(Deserialize, Debug)]
pub struct PlaybackUpdateMessage {
pub time: u64,
pub state: u8 //0 = None, 1 = Playing, 2 = Paused
}
#[derive(Deserialize, Debug)]
pub struct VolumeUpdateMessage {
pub volume: f64 //(0-1)
}
#[derive(Serialize, Debug)]
pub struct SetVolumeMessage {
pub volume: f64,
}
impl SetVolumeMessage {
pub fn new(volume: f64) -> Self {
Self { volume }
}
}

15
receivers/android/.gitignore vendored Normal file
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@ -0,0 +1,15 @@
*.iml
.gradle
/local.properties
/.idea/caches
/.idea/libraries
/.idea/modules.xml
/.idea/workspace.xml
/.idea/navEditor.xml
/.idea/assetWizardSettings.xml
.DS_Store
/build
/captures
.externalNativeBuild
.cxx
local.properties

13
receivers/android/.gitlab-ci.yml Normal file
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@ -0,0 +1,13 @@
stages:
- buildAndDeployApk
buildAndDeployApk:
stage: buildAndDeployApk
script:
- ./gradlew --stacktrace assembleRelease
- cp ./app/build/outputs/apk/release/app-release.apk /var/www/html/fcast-release.apk
- git describe --tags > /var/www/html/fcast-version.txt
only:
- tags
except:
- branches

3
receivers/android/.idea/.gitignore generated vendored Normal file
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@ -0,0 +1,3 @@
# Default ignored files
/shelf/
/workspace.xml

1
receivers/android/.idea/.name generated Normal file
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@ -0,0 +1 @@
FCastReceiver

6
receivers/android/.idea/compiler.xml generated Normal file
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@ -0,0 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="CompilerConfiguration">
<bytecodeTargetLevel target="19" />
</component>
</project>

19
receivers/android/.idea/gradle.xml generated Normal file
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@ -0,0 +1,19 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="GradleMigrationSettings" migrationVersion="1" />
<component name="GradleSettings">
<option name="linkedExternalProjectsSettings">
<GradleProjectSettings>
<option name="testRunner" value="GRADLE" />
<option name="distributionType" value="DEFAULT_WRAPPED" />
<option name="externalProjectPath" value="$PROJECT_DIR$" />
<option name="modules">
<set>
<option value="$PROJECT_DIR$" />
<option value="$PROJECT_DIR$/app" />
</set>
</option>
</GradleProjectSettings>
</option>
</component>
</project>

10
receivers/android/.idea/misc.xml generated Normal file
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@ -0,0 +1,10 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ExternalStorageConfigurationManager" enabled="true" />
<component name="ProjectRootManager" version="2" languageLevel="JDK_X" default="true" project-jdk-name="Android Studio default JDK" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/build/classes" />
</component>
<component name="ProjectType">
<option name="id" value="Android" />
</component>
</project>

6
receivers/android/.idea/vcs.xml generated Normal file
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@ -0,0 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$" vcs="Git" />
</component>
</project>

1
receivers/android/app/.gitignore vendored Normal file
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@ -0,0 +1 @@
/build

72
receivers/android/app/build.gradle Normal file
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@ -0,0 +1,72 @@
plugins {
id 'com.android.application'
id 'org.jetbrains.kotlin.android'
id 'org.jetbrains.kotlin.plugin.serialization' version '1.8.10'
id 'org.ajoberstar.grgit' version '1.7.2'
}
ext {
gitVersionName = grgit.describe()
gitVersionCode = gitVersionName != null && gitVersionName.isInteger() ? gitVersionName.toInteger() : 1
}
println("Version Name: $gitVersionName")
println("Version Code: $gitVersionCode")
def keystoreProperties = new Properties()
def keystorePropertiesFile = rootProject.file('/opt/key.properties')
if (keystorePropertiesFile.exists()) {
keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
}
android {
namespace 'com.futo.fcast.receiver'
compileSdk 33
defaultConfig {
applicationId "com.futo.fcast.receiver"
minSdk 24
targetSdk 33
versionCode gitVersionCode
versionName gitVersionName
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
signingConfigs {
release {
keyAlias keystoreProperties['keyAlias']
keyPassword keystoreProperties['keyPassword']
storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
storePassword keystoreProperties['storePassword']
}
}
buildTypes {
release {
signingConfig signingConfigs.release
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = '1.8'
}
}
dependencies {
implementation 'androidx.core:core-ktx:1.7.0'
implementation 'androidx.appcompat:appcompat:1.6.1'
implementation 'com.google.android.material:material:1.8.0'
implementation "org.jetbrains.kotlinx:kotlinx-serialization-json:1.5.0"
implementation 'com.google.android.exoplayer:exoplayer:2.18.6'
implementation "com.squareup.okhttp3:okhttp:4.11.0"
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.5'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
}

21
receivers/android/app/proguard-rules.pro vendored Normal file
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@ -0,0 +1,21 @@
# Add project specific ProGuard rules here.
# You can control the set of applied configuration files using the
# proguardFiles setting in build.gradle.
#
# For more details, see
# http://developer.android.com/guide/developing/tools/proguard.html
# If your project uses WebView with JS, uncomment the following
# and specify the fully qualified class name to the JavaScript interface
# class:
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
# public *;
#}
# Uncomment this to preserve the line number information for
# debugging stack traces.
#-keepattributes SourceFile,LineNumberTable
# If you keep the line number information, uncomment this to
# hide the original source file name.
#-renamesourcefileattribute SourceFile

24
receivers/android/app/src/androidTest/java/com/futo/fcast/receiver/ExampleInstrumentedTest.kt Normal file
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@ -0,0 +1,24 @@
package com.futo.fcast.receiver
import androidx.test.platform.app.InstrumentationRegistry
import androidx.test.ext.junit.runners.AndroidJUnit4
import org.junit.Test
import org.junit.runner.RunWith
import org.junit.Assert.*
/**
* Instrumented test, which will execute on an Android device.
*
* See [testing documentation](http://d.android.com/tools/testing).
*/
@RunWith(AndroidJUnit4::class)
class ExampleInstrumentedTest {
@Test
fun useAppContext() {
// Context of the app under test.
val appContext = InstrumentationRegistry.getInstrumentation().targetContext
assertEquals("com.futo.fcast.receiver", appContext.packageName)
}
}

57
receivers/android/app/src/main/AndroidManifest.xml Normal file
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@ -0,0 +1,57 @@
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
<uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
<application
android:allowBackup="true"
android:dataExtractionRules="@xml/data_extraction_rules"
android:fullBackupContent="@xml/backup_rules"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:usesCleartextTraffic="true"
tools:targetApi="31">
<activity
android:name=".MainActivity"
android:configChanges="keyboardHidden|orientation|screenSize"
android:theme="@style/Theme.AppCompat.NoActionBar"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".PlayerActivity"
android:configChanges="keyboardHidden|orientation|screenSize"
android:theme="@style/Theme.AppCompat.NoActionBar" />
<receiver
android:name=".BootReceiver"
android:enabled="true"
android:exported="false">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.PACKAGE_ADDED" />
<action android:name="android.intent.action.MY_PACKAGE_REPLACED" />
</intent-filter>
</receiver>
<service
android:name=".TcpListenerService"
android:enabled="true"
android:exported="false" />
<receiver android:name=".InstallReceiver" />
</application>
</manifest>

16
receivers/android/app/src/main/java/com/futo/fcast/receiver/BootReceiver.kt Normal file
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package com.futo.fcast.receiver
import android.content.BroadcastReceiver
import android.content.Context
import android.content.Intent
class BootReceiver : BroadcastReceiver() {
override fun onReceive(context: Context, intent: Intent) {
if (intent.action == Intent.ACTION_BOOT_COMPLETED ||
intent.action == Intent.ACTION_PACKAGE_ADDED ||
intent.action == Intent.ACTION_MY_PACKAGE_REPLACED) {
val serviceIntent = Intent(context, TcpListenerService::class.java)
context.startService(serviceIntent)
}
}
}

56
receivers/android/app/src/main/java/com/futo/fcast/receiver/DiscoveryService.kt Normal file
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package com.futo.fcast.receiver
import android.content.Context
import android.net.nsd.NsdManager
import android.net.nsd.NsdServiceInfo
import android.util.Log
class DiscoveryService(private val _context: Context) {
private var _nsdManager: NsdManager? = null
private val _serviceType = "_fcast._tcp"
private fun getDeviceName(): String {
return "${android.os.Build.MANUFACTURER}-${android.os.Build.MODEL}"
}
fun start() {
if (_nsdManager != null) return
val serviceName = "FCast-${getDeviceName()}"
Log.i("DiscoveryService", "Discovery service started. Name: $serviceName")
_nsdManager = _context.getSystemService(Context.NSD_SERVICE) as NsdManager
val serviceInfo = NsdServiceInfo().apply {
this.serviceName = serviceName
this.serviceType = _serviceType
this.port = 46899
}
_nsdManager?.registerService(serviceInfo, NsdManager.PROTOCOL_DNS_SD, registrationListener)
}
fun stop() {
if (_nsdManager == null) return
_nsdManager?.unregisterService(registrationListener)
_nsdManager = null
}
private val registrationListener = object : NsdManager.RegistrationListener {
override fun onServiceRegistered(serviceInfo: NsdServiceInfo) {
Log.d("DiscoveryService", "Service registered: ${serviceInfo.serviceName}")
}
override fun onRegistrationFailed(serviceInfo: NsdServiceInfo, errorCode: Int) {
Log.e("DiscoveryService", "Service registration failed: errorCode=$errorCode")
}
override fun onServiceUnregistered(serviceInfo: NsdServiceInfo) {
Log.d("DiscoveryService", "Service unregistered: ${serviceInfo.serviceName}")
}
override fun onUnregistrationFailed(serviceInfo: NsdServiceInfo, errorCode: Int) {
Log.e("DiscoveryService", "Service unregistration failed: errorCode=$errorCode")
}
}
}

185
receivers/android/app/src/main/java/com/futo/fcast/receiver/FCastSession.kt Normal file
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package com.futo.fcast.receiver
import android.util.Log
import kotlinx.serialization.decodeFromString
import kotlinx.serialization.encodeToString
import kotlinx.serialization.json.Json
import java.io.DataInputStream
import java.io.DataOutputStream
import java.net.Socket
import java.nio.ByteBuffer
enum class SessionState {
Idle,
WaitingForLength,
WaitingForData,
Disconnected
}
enum class Opcode(val value: Byte) {
None(0),
Play(1),
Pause(2),
Resume(3),
Stop(4),
Seek(5),
PlaybackUpdate(6),
VolumeUpdate(7),
SetVolume(8)
}
const val LENGTH_BYTES = 4
const val MAXIMUM_PACKET_LENGTH = 32000
class FCastSession(private val _socket: Socket, private val _service: TcpListenerService) {
private var _buffer = ByteArray(MAXIMUM_PACKET_LENGTH)
private var _bytesRead = 0
private var _packetLength = 0
private var _state = SessionState.WaitingForLength
private var _outputStream: DataOutputStream? = DataOutputStream(_socket.outputStream);
fun sendPlaybackUpdate(value: PlaybackUpdateMessage) {
send(Opcode.PlaybackUpdate, value)
}
fun sendVolumeUpdate(value: VolumeUpdateMessage) {
send(Opcode.VolumeUpdate, value)
}
private inline fun <reified T> send(opcode: Opcode, message: T) {
try {
val data: ByteArray;
var jsonString: String? = null;
if (message != null) {
jsonString = Json.encodeToString(message);
data = jsonString.encodeToByteArray();
} else {
data = ByteArray(0);
}
val size = 1 + data.size;
val outputStream = _outputStream;
if (outputStream == null) {
Log.w(TAG, "Failed to send $size bytes, output stream is null.");
return;
}
val serializedSizeLE = ByteArray(4);
serializedSizeLE[0] = (size and 0xff).toByte();
serializedSizeLE[1] = (size shr 8 and 0xff).toByte();
serializedSizeLE[2] = (size shr 16 and 0xff).toByte();
serializedSizeLE[3] = (size shr 24 and 0xff).toByte();
outputStream.write(serializedSizeLE);
val opcodeBytes = ByteArray(1);
opcodeBytes[0] = opcode.value;
outputStream.write(opcodeBytes);
if (data.isNotEmpty()) {
outputStream.write(data);
}
Log.d(TAG, "Sent $size bytes: '$jsonString'.");
} catch (e: Throwable) {
Log.i(TAG, "Failed to send message.", e);
}
}
fun processBytes(data: ByteArray, count: Int) {
if (data.isEmpty()) {
return
}
Log.i(TAG, "$count bytes received from ${_socket.remoteSocketAddress}")
when (_state) {
SessionState.WaitingForLength -> handleLengthBytes(data, 0, count)
SessionState.WaitingForData -> handlePacketBytes(data, 0, count)
else -> throw Exception("Invalid state $_state encountered")
}
}
private fun handleLengthBytes(data: ByteArray, offset: Int, count: Int) {
val bytesToRead = minOf(LENGTH_BYTES - _bytesRead, count)
val bytesRemaining = count - bytesToRead
System.arraycopy(data, offset, _buffer, _bytesRead, bytesToRead)
_bytesRead += bytesToRead
Log.i(TAG, "Read $bytesToRead bytes from packet")
if (_bytesRead >= LENGTH_BYTES) {
_state = SessionState.WaitingForData
_packetLength = (_buffer[0].toInt() and 0xff) or
((_buffer[1].toInt() and 0xff) shl 8) or
((_buffer[2].toInt() and 0xff) shl 16) or
((_buffer[3].toInt() and 0xff) shl 24)
_bytesRead = 0
Log.i(TAG, "Packet length header received from ${_socket.remoteSocketAddress}: $_packetLength")
if (_packetLength > MAXIMUM_PACKET_LENGTH) {
Log.i(TAG, "Maximum packet length is 32kB, killing socket ${_socket.remoteSocketAddress}: $_packetLength")
_socket.close()
_state = SessionState.Disconnected
return
}
if (bytesRemaining > 0) {
Log.i(TAG, "$bytesRemaining remaining bytes ${_socket.remoteSocketAddress} pushed to handlePacketBytes")
handlePacketBytes(data, offset + bytesToRead, bytesRemaining)
}
}
}
private fun handlePacketBytes(data: ByteArray, offset: Int, count: Int) {
val bytesToRead = minOf(_packetLength - _bytesRead, count)
val bytesRemaining = count - bytesToRead
System.arraycopy(data, offset, _buffer, _bytesRead, bytesToRead)
_bytesRead += bytesToRead
Log.i(TAG, "Read $bytesToRead bytes from packet")
if (_bytesRead >= _packetLength) {
Log.i(TAG, "Packet finished receiving from ${_socket.remoteSocketAddress} of $_packetLength bytes.")
handlePacket()
_state = SessionState.WaitingForLength
_packetLength = 0
_bytesRead = 0
if (bytesRemaining > 0) {
Log.i(TAG, "$bytesRemaining remaining bytes ${_socket.remoteSocketAddress} pushed to handleLengthBytes")
handleLengthBytes(data, offset + bytesToRead, bytesRemaining)
}
}
}
private fun handlePacket() {
Log.i(TAG, "Processing packet of $_bytesRead bytes from ${_socket.remoteSocketAddress}")
val opcode = Opcode.values().firstOrNull { it.value == _buffer[0] } ?: Opcode.None
val body = if (_packetLength > 1) _buffer.copyOfRange(1, _packetLength)
.toString(Charsets.UTF_8) else null
Log.i(TAG, "Received packet (opcode: ${opcode}, body: '${body}')")
try {
when (opcode) {
Opcode.Play -> _service.onCastPlay(Json.decodeFromString(body!!))
Opcode.Pause -> _service.onCastPause()
Opcode.Resume -> _service.onCastResume()
Opcode.Stop -> _service.onCastStop()
Opcode.Seek -> _service.onCastSeek(Json.decodeFromString(body!!))
Opcode.SetVolume -> _service.onSetVolume(Json.decodeFromString(body!!))
else -> { }
}
} catch (e: Exception) {
Log.e(TAG, "Failed to handle packet (opcode: ${opcode}, body: '${body}')")
}
}
companion object {
const val TAG = "FCastSession"
}
}

42
receivers/android/app/src/main/java/com/futo/fcast/receiver/InstallReceiver.kt Normal file
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@ -0,0 +1,42 @@
package com.futo.fcast.receiver
import android.content.BroadcastReceiver
import android.content.Context
import android.content.Intent
import android.content.pm.PackageInstaller
import android.util.Log
class InstallReceiver : BroadcastReceiver() {
override fun onReceive(context: Context, intent: Intent) {
val status = intent.getIntExtra(PackageInstaller.EXTRA_STATUS, -1)
Log.i(TAG, "Received status $status.")
when (status) {
PackageInstaller.STATUS_PENDING_USER_ACTION -> {
val activityIntent = intent.getParcelableExtra<Intent>(Intent.EXTRA_INTENT)
if (activityIntent == null) {
Log.w(TAG, "Received STATUS_PENDING_USER_ACTION and activity intent is null.")
return
}
context.startActivity(activityIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK))
}
PackageInstaller.STATUS_SUCCESS -> onReceiveResult?.invoke(null)
PackageInstaller.STATUS_FAILURE -> onReceiveResult?.invoke(context.getString(R.string.general_failure))
PackageInstaller.STATUS_FAILURE_ABORTED -> onReceiveResult?.invoke(context.getString(R.string.aborted))
PackageInstaller.STATUS_FAILURE_BLOCKED -> onReceiveResult?.invoke(context.getString(R.string.blocked))
PackageInstaller.STATUS_FAILURE_CONFLICT -> onReceiveResult?.invoke(context.getString(R.string.conflict))
PackageInstaller.STATUS_FAILURE_INCOMPATIBLE -> onReceiveResult?.invoke(context.getString(R.string.incompatible))
PackageInstaller.STATUS_FAILURE_INVALID -> onReceiveResult?.invoke(context.getString(R.string.invalid))
PackageInstaller.STATUS_FAILURE_STORAGE -> onReceiveResult?.invoke(context.getString(R.string.not_enough_storage))
else -> {
val msg = intent.getStringExtra(PackageInstaller.EXTRA_STATUS_MESSAGE)
onReceiveResult?.invoke(msg)
}
}
}
companion object {
const val TAG = "InstallReceiver"
var onReceiveResult: ((String?) -> Unit)? = null
}
}

385
receivers/android/app/src/main/java/com/futo/fcast/receiver/MainActivity.kt Normal file
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package com.futo.fcast.receiver
import android.Manifest
import android.app.AlertDialog
import android.app.PendingIntent
import android.content.Intent
import android.content.pm.PackageInstaller
import android.content.pm.PackageManager
import android.graphics.drawable.Animatable
import android.net.Uri
import android.os.Build
import android.os.Bundle
import android.provider.Settings
import android.util.Log
import android.view.View
import android.view.WindowManager
import android.widget.*
import androidx.appcompat.app.AppCompatActivity
import androidx.core.app.ActivityCompat
import androidx.core.content.ContextCompat
import kotlinx.coroutines.*
import okhttp3.OkHttpClient
import java.io.InputStream
import java.io.OutputStream
import java.net.NetworkInterface
class MainActivity : AppCompatActivity() {
private lateinit var _buttonUpdate: LinearLayout
private lateinit var _text: TextView
private lateinit var _textIPs: TextView
private lateinit var _textProgress: TextView
private lateinit var _updateSpinner: ImageView
private var _updating: Boolean = false
private val _scope: CoroutineScope = CoroutineScope(Dispatchers.Main)
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
_buttonUpdate = findViewById(R.id.button_update)
_text = findViewById(R.id.text_dialog)
_textIPs = findViewById(R.id.text_ips)
_textProgress = findViewById(R.id.text_progress)
_updateSpinner = findViewById(R.id.update_spinner)
_text.text = getString(R.string.checking_for_updates)
_buttonUpdate.visibility = View.INVISIBLE
(_updateSpinner.drawable as Animatable?)?.start()
_buttonUpdate.setOnClickListener {
if (_updating) {
return@setOnClickListener
}
_updating = true
update()
}
_scope.launch(Dispatchers.IO) {
checkForUpdates()
}
_textIPs.text = "IPs\n" + getIPs().joinToString("\n") + "\n\nPort\n46899"
TcpListenerService.activityCount++
if (checkAndRequestPermissions()) {
Log.i(TAG, "Notification permission already granted")
restartService()
} else {
restartService()
}
requestSystemAlertWindowPermission()
}
override fun onDestroy() {
super.onDestroy()
InstallReceiver.onReceiveResult = null
_scope.cancel()
TcpListenerService.activityCount--
}
private fun restartService() {
val i = TcpListenerService.instance
if (i != null) {
i.stopSelf()
}
startService(Intent(this, TcpListenerService::class.java))
}
private fun checkAndRequestPermissions(): Boolean {
val listPermissionsNeeded = arrayListOf<String>()
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
val notificationPermission = ContextCompat.checkSelfPermission(this, Manifest.permission.POST_NOTIFICATIONS)
if (notificationPermission != PackageManager.PERMISSION_GRANTED) {
listPermissionsNeeded.add(Manifest.permission.POST_NOTIFICATIONS)
}
}
if (listPermissionsNeeded.isNotEmpty()) {
ActivityCompat.requestPermissions(this, listPermissionsNeeded.toTypedArray(), REQUEST_ID_MULTIPLE_PERMISSIONS)
return false
}
return true
}
private fun requestSystemAlertWindowPermission() {
if (!Settings.canDrawOverlays(this)) {
AlertDialog.Builder(this)
.setTitle(R.string.permission_dialog_title)
.setMessage(R.string.permission_dialog_message)
.setPositiveButton(R.string.permission_dialog_positive_button) { _, _ ->
val intent = Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:$packageName"))
startActivityForResult(intent, REQUEST_CODE)
}
.setNegativeButton(R.string.permission_dialog_negative_button) { dialog, _ ->
dialog.dismiss()
Toast.makeText(this, "Permission is required to work in background", Toast.LENGTH_LONG).show()
}
.create()
.show()
}
}
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
if (requestCode == REQUEST_CODE) {
if (Settings.canDrawOverlays(this)) {
// Permission granted, you can launch the activity from the foreground service
Toast.makeText(this, "Alert window permission granted", Toast.LENGTH_LONG).show()
Log.i(TAG, "Alert window permission granted")
} else {
// Permission denied, notify the user and request again if necessary
Toast.makeText(this, "Permission is required to work in background", Toast.LENGTH_LONG).show()
Log.i(TAG, "Alert window permission denied")
}
}
super.onActivityResult(requestCode, resultCode, data)
}
override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults)
when (requestCode) {
REQUEST_ID_MULTIPLE_PERMISSIONS -> {
val perms: MutableMap<String, Int> = HashMap()
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
perms[Manifest.permission.POST_NOTIFICATIONS] = PackageManager.PERMISSION_GRANTED
}
if (grantResults.isNotEmpty()) {
var i = 0
while (i < permissions.size) {
perms[permissions[i]] = grantResults[i]
i++
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
if (perms[Manifest.permission.POST_NOTIFICATIONS] == PackageManager.PERMISSION_GRANTED) {
Log.i(TAG, "Notification permission granted")
Toast.makeText(this, "Notification permission granted", Toast.LENGTH_LONG).show()
restartService()
} else {
Log.i(TAG, "Notification permission not granted")
Toast.makeText(this, "App may not fully work without notification permission", Toast.LENGTH_LONG).show()
restartService()
}
}
}
}
}
}
private suspend fun checkForUpdates() {
withContext(Dispatchers.IO) {
try {
val latestVersion = downloadVersionCode()
if (latestVersion != null) {
val currentVersion = BuildConfig.VERSION_CODE;
Log.i(TAG, "Current version $currentVersion latest version $latestVersion.");
if (latestVersion > currentVersion) {
withContext(Dispatchers.Main) {
try {
(_updateSpinner.drawable as Animatable?)?.stop()
_updateSpinner.visibility = View.INVISIBLE
_text.text = resources.getText(R.string.there_is_an_update_available_do_you_wish_to_update)
_buttonUpdate.visibility = View.VISIBLE
} catch (e: Throwable) {
Toast.makeText(this@MainActivity, "Failed to show update dialog", Toast.LENGTH_LONG).show();
Log.w(TAG, "Error occurred in update dialog.");
}
}
} else {
withContext(Dispatchers.Main) {
_updateSpinner.visibility = View.INVISIBLE
_text.text = getString(R.string.no_updates_available)
Toast.makeText(this@MainActivity, "Already on latest version", Toast.LENGTH_LONG).show();
}
}
} else {
Log.w(TAG, "Failed to retrieve version from version URL.");
withContext(Dispatchers.Main) {
Toast.makeText(this@MainActivity, "Failed to retrieve version", Toast.LENGTH_LONG).show();
}
}
} catch (e: Throwable) {
Log.w(TAG, "Failed to check for updates.", e);
withContext(Dispatchers.Main) {
Toast.makeText(this@MainActivity, "Failed to check for updates", Toast.LENGTH_LONG).show();
}
}
}
}
private fun downloadVersionCode(): Int? {
val client = OkHttpClient()
val request = okhttp3.Request.Builder()
.method("GET", null)
.url(VERSION_URL)
.build()
val response = client.newCall(request).execute()
if (!response.isSuccessful || response.body == null) {
return null
}
return response.body?.string()?.trim()?.toInt()
}
private fun update() {
_updateSpinner.visibility = View.VISIBLE
_buttonUpdate.visibility = Button.INVISIBLE
window?.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
_text.text = resources.getText(R.string.downloading_update)
(_updateSpinner.drawable as Animatable?)?.start()
_scope.launch(Dispatchers.IO) {
var inputStream: InputStream? = null
try {
val client = OkHttpClient()
val request = okhttp3.Request.Builder()
.method("GET", null)
.url(APK_URL)
.build()
val response = client.newCall(request).execute()
val body = response.body
if (response.isSuccessful && body != null) {
inputStream = body.byteStream()
val dataLength = body.contentLength()
install(inputStream, dataLength)
} else {
throw Exception("Failed to download latest version of app.")
}
} catch (e: Throwable) {
Log.w(TAG, "Exception thrown while downloading and installing latest version of app.", e)
withContext(Dispatchers.Main) {
onReceiveResult("Failed to download update.")
}
} finally {
inputStream?.close()
}
}
}
private suspend fun install(inputStream: InputStream, dataLength: Long) {
var lastProgressText = ""
var session: PackageInstaller.Session? = null
try {
Log.i(TAG, "Hooked InstallReceiver.onReceiveResult.")
InstallReceiver.onReceiveResult = { message -> onReceiveResult(message) }
val packageInstaller: PackageInstaller = packageManager.packageInstaller
val params = PackageInstaller.SessionParams(PackageInstaller.SessionParams.MODE_FULL_INSTALL)
val sessionId = packageInstaller.createSession(params)
session = packageInstaller.openSession(sessionId)
session.openWrite("package", 0, dataLength).use { sessionStream ->
inputStream.copyToOutputStream(dataLength, sessionStream) { progress ->
val progressText = "${(progress * 100.0f).toInt()}%"
if (lastProgressText != progressText) {
lastProgressText = progressText
//TODO: Use proper scope
GlobalScope.launch(Dispatchers.Main) {
_textProgress.text = progressText
}
}
}
session.fsync(sessionStream)
}
val intent = Intent(this, InstallReceiver::class.java)
val pendingIntent = PendingIntent.getBroadcast(
this,
0,
intent,
PendingIntent.FLAG_MUTABLE or PendingIntent.FLAG_UPDATE_CURRENT
)
val statusReceiver = pendingIntent.intentSender
session.commit(statusReceiver)
session.close()
withContext(Dispatchers.Main) {
_textProgress.text = ""
_text.text = resources.getText(R.string.installing_update)
}
} catch (e: Throwable) {
Log.w(TAG, "Exception thrown while downloading and installing latest version of app.", e)
session?.abandon()
withContext(Dispatchers.Main) {
onReceiveResult("Failed to download update.")
}
}
finally {
withContext(Dispatchers.Main) {
window?.clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON)
}
}
}
private fun onReceiveResult(result: String?) {
InstallReceiver.onReceiveResult = null
Log.i(TAG, "Cleared InstallReceiver.onReceiveResult handler.")
(_updateSpinner.drawable as Animatable?)?.stop()
if (result == null || result.isBlank()) {
_updateSpinner.setImageResource(R.drawable.ic_update_success)
_text.text = resources.getText(R.string.success)
} else {
_updateSpinner.setImageResource(R.drawable.ic_update_fail)
_text.text = "${resources.getText(R.string.failed_to_update_with_error)}: '$result'."
}
}
private fun InputStream.copyToOutputStream(inputStreamLength: Long, outputStream: OutputStream, onProgress: (Float) -> Unit) {
val buffer = ByteArray(16384)
var n: Int
var total = 0
val inputStreamLengthFloat = inputStreamLength.toFloat()
while (read(buffer).also { n = it } >= 0) {
total += n
outputStream.write(buffer, 0, n)
onProgress.invoke(total.toFloat() / inputStreamLengthFloat)
}
}
private fun getIPs(): List<String> {
val ips = arrayListOf<String>()
for (intf in NetworkInterface.getNetworkInterfaces()) {
for (addr in intf.inetAddresses) {
if (addr.isLoopbackAddress) {
continue
}
Log.i(TcpListenerService.TAG, "Running on ${addr.hostAddress}:${TcpListenerService.PORT}")
addr.hostAddress?.let { ips.add(it) }
}
}
return ips;
}
companion object {
const val TAG = "MainActivity"
const val VERSION_URL = "https://releases.grayjay.app/fcast-version.txt"
const val APK_URL = "https://releases.grayjay.app/fcast-release.apk"
const val REQUEST_ID_MULTIPLE_PERMISSIONS = 1
const val REQUEST_CODE = 2
}
}

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receivers/android/app/src/main/java/com/futo/fcast/receiver/Packets.kt Normal file
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package com.futo.fcast.receiver
import kotlinx.serialization.Serializable
@Serializable
data class PlayMessage(
val container: String,
val url: String? = null,
val content: String? = null,
val time: Long? = null
)
@Serializable
data class SeekMessage(
val time: Long
)
@Serializable
data class PlaybackUpdateMessage(
val time: Long,
val state: Int
)
@Serializable
data class VolumeUpdateMessage(
val volume: Double
)
@Serializable
data class SetVolumeMessage(
val volume: Double
)

214
receivers/android/app/src/main/java/com/futo/fcast/receiver/PlayerActivity.kt Normal file
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package com.futo.fcast.receiver
import android.content.Context
import android.net.*
import android.os.Bundle
import android.util.Log
import androidx.appcompat.app.AppCompatActivity
import com.google.android.exoplayer2.*
import com.google.android.exoplayer2.source.DefaultMediaSourceFactory
import com.google.android.exoplayer2.source.dash.DashMediaSource
import com.google.android.exoplayer2.source.hls.HlsMediaSource
import com.google.android.exoplayer2.trackselection.DefaultTrackSelector
import com.google.android.exoplayer2.ui.StyledPlayerView
import com.google.android.exoplayer2.upstream.DefaultDataSource
import kotlinx.coroutines.*
import java.io.File
import java.io.FileOutputStream
import kotlin.math.abs
class PlayerActivity : AppCompatActivity() {
private lateinit var _playerControlView: StyledPlayerView
private lateinit var _exoPlayer: ExoPlayer
private var _shouldPlaybackRestartOnConnectivity: Boolean = false
private lateinit var _connectivityManager: ConnectivityManager
private lateinit var _scope: CoroutineScope
val currentPosition get() = _exoPlayer.currentPosition
val isPlaying get() = _exoPlayer.isPlaying
private val _connectivityEvents = object : ConnectivityManager.NetworkCallback() {
override fun onAvailable(network: Network) {
super.onAvailable(network)
Log.i(TAG, "_connectivityEvents onAvailable")
try {
_scope.launch(Dispatchers.Main) {
Log.i(TAG, "onConnectionAvailable")
val pos = _exoPlayer.currentPosition
val dur = _exoPlayer.duration
if (_shouldPlaybackRestartOnConnectivity && abs(pos - dur) > 2000) {
Log.i(TAG, "Playback ended due to connection loss, resuming playback since connection is restored.")
_exoPlayer.playWhenReady = true
_exoPlayer.prepare()
_exoPlayer.play()
}
}
} catch(ex: Throwable) {
Log.w(TAG, "Failed to handle connection available event", ex)
}
}
}
private val _playerEventListener = object: Player.Listener {
override fun onPlaybackStateChanged(playbackState: Int) {
super.onPlaybackStateChanged(playbackState)
if (_shouldPlaybackRestartOnConnectivity && playbackState == ExoPlayer.STATE_READY) {
Log.i(TAG, "_shouldPlaybackRestartOnConnectivity=false")
_shouldPlaybackRestartOnConnectivity = false
}
}
override fun onPlayerError(error: PlaybackException) {
super.onPlayerError(error)
when (error.errorCode) {
PlaybackException.ERROR_CODE_IO_BAD_HTTP_STATUS,
PlaybackException.ERROR_CODE_IO_CLEARTEXT_NOT_PERMITTED,
PlaybackException.ERROR_CODE_IO_FILE_NOT_FOUND,
PlaybackException.ERROR_CODE_IO_INVALID_HTTP_CONTENT_TYPE,
PlaybackException.ERROR_CODE_IO_NETWORK_CONNECTION_FAILED,
PlaybackException.ERROR_CODE_IO_NETWORK_CONNECTION_TIMEOUT,
PlaybackException.ERROR_CODE_IO_NO_PERMISSION,
PlaybackException.ERROR_CODE_IO_READ_POSITION_OUT_OF_RANGE,
PlaybackException.ERROR_CODE_IO_UNSPECIFIED -> {
Log.i(TAG, "IO error, set _shouldPlaybackRestartOnConnectivity=true")
_shouldPlaybackRestartOnConnectivity = true
}
}
}
override fun onVolumeChanged(volume: Float) {
super.onVolumeChanged(volume)
_scope.launch(Dispatchers.IO) {
try {
TcpListenerService.instance?.sendCastVolumeUpdate(VolumeUpdateMessage(volume.toDouble()))
} catch (e: Throwable) {
Log.e(TAG, "Unhandled error sending volume update", e)
}
Log.i(TAG, "Update sent")
}
}
}
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
Log.i(TAG, "onCreate")
setContentView(R.layout.activity_player)
_playerControlView = findViewById(R.id.player_control_view)
_scope = CoroutineScope(Dispatchers.Main)
val trackSelector = DefaultTrackSelector(this)
trackSelector.parameters = trackSelector.parameters
.buildUpon()
.setPreferredTextLanguage("en")
.setSelectUndeterminedTextLanguage(true)
.build()
_exoPlayer = ExoPlayer.Builder(this)
.setTrackSelector(trackSelector).build()
_exoPlayer.addListener(_playerEventListener)
_playerControlView.player = _exoPlayer
_playerControlView.controllerAutoShow = false
Log.i(TAG, "Attached onConnectionAvailable listener.")
_connectivityManager = getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
val netReq = NetworkRequest.Builder()
.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
.addTransportType(NetworkCapabilities.TRANSPORT_WIFI)
.addTransportType(NetworkCapabilities.TRANSPORT_ETHERNET)
.addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR)
.build()
_connectivityManager.registerNetworkCallback(netReq, _connectivityEvents)
val container = intent.getStringExtra("container") ?: ""
val url = intent.getStringExtra("url")
val content = intent.getStringExtra("content")
val time = intent.getLongExtra("time", 0L)
play(PlayMessage(container, url, content, time))
instance = this
TcpListenerService.activityCount++
}
override fun onDestroy() {
super.onDestroy()
Log.i(TAG, "onDestroy")
instance = null
_scope.cancel()
_connectivityManager.unregisterNetworkCallback(_connectivityEvents)
_exoPlayer.removeListener(_playerEventListener)
_exoPlayer.stop()
_playerControlView.player = null
TcpListenerService.activityCount--
}
fun play(playMessage: PlayMessage) {
val mediaItemBuilder = MediaItem.Builder()
if (playMessage.container.isNotEmpty()) {
mediaItemBuilder.setMimeType(playMessage.container)
}
if (!playMessage.url.isNullOrEmpty()) {
mediaItemBuilder.setUri(Uri.parse(playMessage.url))
} else if (!playMessage.content.isNullOrEmpty()) {
val tempFile = File.createTempFile("content_", ".tmp", cacheDir)
tempFile.deleteOnExit()
FileOutputStream(tempFile).use { output ->
output.bufferedWriter().use { writer ->
writer.write(playMessage.content)
}
}
mediaItemBuilder.setUri(Uri.fromFile(tempFile))
} else {
throw IllegalArgumentException("Either URL or content must be provided.")
}
val dataSourceFactory = DefaultDataSource.Factory(this)
val mediaItem = mediaItemBuilder.build()
val mediaSource = when (playMessage.container) {
"application/dash+xml" -> DashMediaSource.Factory(dataSourceFactory).createMediaSource(mediaItem)
"application/vnd.apple.mpegurl" -> HlsMediaSource.Factory(dataSourceFactory).createMediaSource(mediaItem)
else -> DefaultMediaSourceFactory(dataSourceFactory).createMediaSource(mediaItem)
}
_exoPlayer.setMediaSource(mediaSource)
if (playMessage.time != null) {
_exoPlayer.seekTo(playMessage.time * 1000)
}
_exoPlayer.playWhenReady = true
_exoPlayer.prepare()
_exoPlayer.play()
}
fun pause() {
_exoPlayer.pause()
}
fun resume() {
_exoPlayer.play()
}
fun seek(seekMessage: SeekMessage) {
_exoPlayer.seekTo(seekMessage.time * 1000)
}
fun setVolume(setVolumeMessage: SetVolumeMessage) {
_exoPlayer.volume = setVolumeMessage.volume.toFloat()
}
companion object {
var instance: PlayerActivity? = null
private const val TAG = "PlayerActivity"
}
}

338
receivers/android/app/src/main/java/com/futo/fcast/receiver/TcpListenerService.kt Normal file
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package com.futo.fcast.receiver
import android.app.*
import android.content.Context
import android.content.Intent
import android.os.Build
import android.os.IBinder
import android.provider.Settings
import android.util.Log
import android.widget.Toast
import androidx.core.app.NotificationCompat
import kotlinx.coroutines.*
import java.io.BufferedInputStream
import java.net.NetworkInterface
import java.net.ServerSocket
import java.net.Socket
import java.util.*
class TcpListenerService : Service() {
private var _serverSocket: ServerSocket? = null
private var _stopped: Boolean = false
private var _listenThread: Thread? = null
private var _clientThreads: ArrayList<Thread> = arrayListOf()
private var _sessions: ArrayList<FCastSession> = arrayListOf()
private var _discoveryService: DiscoveryService? = null
private var _scope: CoroutineScope? = null
override fun onBind(intent: Intent?): IBinder? {
return null
}
override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
if (instance != null) {
throw Exception("Do not start service when already running")
}
instance = this
Log.i(TAG, "Starting ListenerService")
_scope = CoroutineScope(Dispatchers.Main)
createNotificationChannel()
val notification: Notification = NotificationCompat.Builder(this, CHANNEL_ID)
.setContentTitle("TCP Listener Service")
.setContentText("Listening on port $PORT")
.setSmallIcon(R.drawable.ic_launcher_background)
.build()
startForeground(NOTIFICATION_ID, notification)
_discoveryService = DiscoveryService(this)
_discoveryService?.start()
_listenThread = Thread {
Log.i(TAG, "Starting listener")
try {
listenForIncomingConnections()
} catch (e: Throwable) {
Log.e(TAG, "Stopped listening for connections due to an unexpected error", e)
}
}
_listenThread?.start()
_scope?.launch(Dispatchers.Main) {
while (!_stopped) {
try {
val player = PlayerActivity.instance
if (player != null) {
val updateMessage = PlaybackUpdateMessage(
player.currentPosition / 1000,
if (player.isPlaying) 1 else 2
)
withContext(Dispatchers.IO) {
try {
sendCastPlaybackUpdate(updateMessage)
} catch (eSend: Throwable) {
Log.e(TAG, "Unhandled error sending update", eSend)
}
Log.i(TAG, "Update sent")
}
}
} catch (eTimer: Throwable) {
Log.e(TAG, "Unhandled error on timer thread", eTimer)
} finally {
delay(1000)
}
}
}
Log.i(TAG, "Started ListenerService")
Toast.makeText(this, "Started FCast service", Toast.LENGTH_LONG).show()
return START_STICKY
}
override fun onDestroy() {
super.onDestroy()
Log.i(TAG, "Stopped ListenerService")
_stopped = true
_discoveryService?.stop()
_discoveryService = null
_serverSocket?.close()
_serverSocket = null;
_listenThread?.join()
_listenThread = null
synchronized(_clientThreads) {
_clientThreads.clear()
}
_scope?.cancel()
_scope = null
Toast.makeText(this, "Stopped FCast service", Toast.LENGTH_LONG).show()
instance = null
}
private fun sendCastPlaybackUpdate(value: PlaybackUpdateMessage) {
synchronized(_sessions) {
for (session in _sessions) {
try {
session.sendPlaybackUpdate(value)
} catch (e: Throwable) {
Log.w(TAG, "Failed to send playback update", e)
}
}
}
}
fun sendCastVolumeUpdate(value: VolumeUpdateMessage) {
synchronized(_sessions) {
for (session in _sessions) {
try {
session.sendVolumeUpdate(value)
} catch (e: Throwable) {
Log.w(TAG, "Failed to send volume update", e)
}
}
}
}
fun onCastPlay(playMessage: PlayMessage) {
Log.i(TAG, "onPlay")
_scope?.launch {
try {
if (PlayerActivity.instance == null) {
val i = Intent(this@TcpListenerService, PlayerActivity::class.java)
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
i.putExtra("container", playMessage.container)
i.putExtra("url", playMessage.url)
i.putExtra("content", playMessage.content)
i.putExtra("time", playMessage.time)
if (activityCount > 0) {
startActivity(i)
} else if (Settings.canDrawOverlays(this@TcpListenerService)) {
val pi = PendingIntent.getActivity(this@TcpListenerService, 0, i, PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE)
pi.send()
} else {
val pi = PendingIntent.getActivity(this@TcpListenerService, 0, i, PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE)
val playNotification = NotificationCompat.Builder(this@TcpListenerService, CHANNEL_ID)
.setContentTitle("FCast")
.setContentText("New content received. Tap to play.")
.setSmallIcon(R.drawable.ic_launcher_background)
.setContentIntent(pi)
.setPriority(NotificationCompat.PRIORITY_HIGH)
.setAutoCancel(true)
.build()
val notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
notificationManager.notify(PLAY_NOTIFICATION_ID, playNotification)
}
} else {
PlayerActivity.instance?.play(playMessage)
}
} catch (e: Throwable) {
Log.e(TAG, "Failed to play", e)
}
}
}
fun onCastPause() {
Log.i(TAG, "onPause")
_scope?.launch {
try {
PlayerActivity.instance?.pause()
} catch (e: Throwable) {
Log.e(TAG, "Failed to pause", e)
}
}
}
fun onCastResume() {
Log.i(TAG, "onResume")
_scope?.launch {
try {
PlayerActivity.instance?.resume()
} catch (e: Throwable) {
Log.e(TAG, "Failed to resume", e)
}
}
}
fun onCastStop() {
Log.i(TAG, "onStop")
_scope?.launch {
try {
PlayerActivity.instance?.finish()
} catch (e: Throwable) {
Log.e(TAG, "Failed to stop", e)
}
}
}
fun onCastSeek(seekMessage: SeekMessage) {
Log.i(TAG, "onSeek")
_scope?.launch {
try {
PlayerActivity.instance?.seek(seekMessage)
} catch (e: Throwable) {
Log.e(TAG, "Failed to seek", e)
}
}
}
fun onSetVolume(setVolumeMessage: SetVolumeMessage) {
Log.i(TAG, "onSetVolume")
_scope?.launch {
try {
PlayerActivity.instance?.setVolume(setVolumeMessage)
} catch (e: Throwable) {
Log.e(TAG, "Failed to seek", e)
}
}
}
private fun listenForIncomingConnections() {
Log.i(TAG, "Started listening for incoming connections")
_serverSocket = ServerSocket(PORT)
while (!_stopped) {
val clientSocket = _serverSocket?.accept() ?: break
val clientThread = Thread {
try {
handleClientConnection(clientSocket)
} catch (e: Throwable) {
Log.e(TAG, "Failed handle client connection due to an error", e)
}
}
synchronized(_clientThreads) {
_clientThreads.add(clientThread)
}
clientThread.start()
}
Log.i(TAG, "Stopped listening for incoming connections")
}
private fun handleClientConnection(socket: Socket) {
Log.i(TAG, "New connection received from ${socket.remoteSocketAddress}")
val session = FCastSession(socket, this)
synchronized(_sessions) {
_sessions.add(session)
}
Log.i(TAG, "Waiting for data from ${socket.remoteSocketAddress}")
val bufferSize = 4096
val buffer = ByteArray(bufferSize)
val inputStream = BufferedInputStream(socket.getInputStream())
var bytesRead: Int
while (!_stopped) {
bytesRead = inputStream.read(buffer, 0, bufferSize)
if (bytesRead == -1) {
break
}
session.processBytes(buffer, bytesRead)
}
socket.close()
synchronized(_sessions) {
_sessions.remove(session)
}
synchronized(_clientThreads) {
_clientThreads.remove(Thread.currentThread())
}
Log.i(TAG, "Disconnected ${socket.remoteSocketAddress}")
}
private fun createNotificationChannel() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
val name = "TCP Listener Service"
val descriptionText = "Listening on port $PORT"
val importance = NotificationManager.IMPORTANCE_DEFAULT
val channel = NotificationChannel(CHANNEL_ID, name, importance).apply {
description = descriptionText
}
val notificationManager: NotificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
notificationManager.createNotificationChannel(channel)
}
}
companion object {
const val PORT = 46899
const val CHANNEL_ID = "TcpListenerServiceChannel"
const val NOTIFICATION_ID = 1
const val PLAY_NOTIFICATION_ID = 2
const val TAG = "TcpListenerService"
var activityCount = 0
var instance: TcpListenerService? = null
}
}

13
receivers/android/app/src/main/java/com/futo/fcast/receiver/Updater.kt Normal file
View file

@ -0,0 +1,13 @@
package com.futo.fcast.receiver
import android.content.Context
import android.util.Log
import android.widget.Toast
import kotlinx.coroutines.*
import okhttp3.OkHttpClient
class Updater {
companion object {
}
}

8
receivers/android/app/src/main/res/animator/rotation_1500_clockwise.xml Normal file
View file

@ -0,0 +1,8 @@
<objectAnimator xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="1500"
android:propertyName="rotation"
android:valueFrom="0"
android:valueTo="360"
android:repeatMode="restart"
android:repeatCount="infinite"
android:interpolator="@android:anim/linear_interpolator" />

30
receivers/android/app/src/main/res/drawable-v24/ic_launcher_foreground.xml Normal file
View file

@ -0,0 +1,30 @@
<vector xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:aapt="http://schemas.android.com/aapt"
android:width="108dp"
android:height="108dp"
android:viewportWidth="108"
android:viewportHeight="108">
<path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
<aapt:attr name="android:fillColor">
<gradient
android:endX="85.84757"
android:endY="92.4963"
android:startX="42.9492"
android:startY="49.59793"
android:type="linear">
<item
android:color="#44000000"
android:offset="0.0" />
<item
android:color="#00000000"
android:offset="1.0" />
</gradient>
</aapt:attr>
</path>
<path
android:fillColor="#FFFFFF"
android:fillType="nonZero"
android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
android:strokeWidth="1"
android:strokeColor="#00000000" />
</vector>

6
receivers/android/app/src/main/res/drawable/background_button_primary.xml Normal file
View file

@ -0,0 +1,6 @@
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#2D63ED" />
<corners android:radius="6dp" />
<padding android:left="0dp" android:top="0dp" android:right="0dp" android:bottom="0dp" />
</shape>

170
receivers/android/app/src/main/res/drawable/ic_launcher_background.xml Normal file
View file

@ -0,0 +1,170 @@
<?xml version="1.0" encoding="utf-8"?>
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="108dp"
android:height="108dp"
android:viewportWidth="108"
android:viewportHeight="108">
<path
android:fillColor="#3DDC84"
android:pathData="M0,0h108v108h-108z" />
<path
android:fillColor="#00000000"
android:pathData="M9,0L9,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,0L19,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M29,0L29,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M39,0L39,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M49,0L49,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M59,0L59,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M69,0L69,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M79,0L79,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M89,0L89,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M99,0L99,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,9L108,9"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,19L108,19"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,29L108,29"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,39L108,39"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,49L108,49"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,59L108,59"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,69L108,69"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,79L108,79"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,89L108,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,99L108,99"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,29L89,29"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,39L89,39"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,49L89,49"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,59L89,59"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,69L89,69"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,79L89,79"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M29,19L29,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M39,19L39,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M49,19L49,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M59,19L59,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M69,19L69,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M79,19L79,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
</vector>

18
receivers/android/app/src/main/res/drawable/ic_update.xml Normal file
View file

@ -0,0 +1,18 @@
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="465dp"
android:height="511dp"
android:viewportWidth="465"
android:viewportHeight="511">
<group
android:name="rotationGroup1"
android:pivotX="232.5"
android:pivotY="255.5"
android:scaleX="0.9"
android:scaleY="0.9"
android:rotation="0.0">
<path
android:pathData="M278,0.5L269.79,25.94C174.26,9.52 82.05,59.38 34.52,137.05C-14.34,216.89 -16.12,325.96 70.25,423.92L92.75,404.08C15.12,316.04 18.09,221.37 60.11,152.71C101.3,85.39 179.93,42.91 260.46,54.83L252.5,79.5L334.5,63.5L278,0.5ZM187.5,510.42L195.71,484.98C291.24,501.4 383.45,451.55 430.98,373.88C479.84,294.04 481.62,184.96 395.25,87L372.75,106.84C450.38,194.88 447.41,289.56 405.39,358.22C364.2,425.54 285.57,468.01 205.04,456.1L213,431.42L131,447.42L187.5,510.42Z"
android:fillColor="#c9c9c9"
android:fillType="evenOdd"/>
</group>
</vector>

6
receivers/android/app/src/main/res/drawable/ic_update_animated.xml Normal file
View file

@ -0,0 +1,6 @@
<animated-vector xmlns:android="http://schemas.android.com/apk/res/android"
android:drawable="@drawable/ic_update" >
<target
android:name="rotationGroup1"
android:animation="@animator/rotation_1500_clockwise" />
</animated-vector>

9
receivers/android/app/src/main/res/drawable/ic_update_fail.xml Normal file
View file

@ -0,0 +1,9 @@
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="251dp"
android:height="251dp"
android:viewportWidth="251"
android:viewportHeight="251">
<path
android:pathData="M251,25.28L225.72,0L125.5,100.22L25.28,0L0,25.28L100.22,125.5L0,225.72L25.28,251L125.5,150.78L225.72,251L251,225.72L150.78,125.5L251,25.28Z"
android:fillColor="#363636"/>
</vector>

4
receivers/android/app/src/main/res/drawable/ic_update_success.xml Normal file
View file

@ -0,0 +1,4 @@
<vector android:height="251dp" android:viewportHeight="258"
android:viewportWidth="338" android:width="328.82947dp" xmlns:android="http://schemas.android.com/apk/res/android">
<path android:fillColor="#363636" android:pathData="M107.41,203.55L27.29,123.32L0,150.45L107.41,258L338,27.13L310.91,0L107.41,203.55Z"/>
</vector>

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receivers/android/app/src/main/res/font/inter_bold.ttf Normal file
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receivers/android/app/src/main/res/font/inter_regular.ttf Normal file
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112
receivers/android/app/src/main/res/layout/activity_main.xml Normal file
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@ -0,0 +1,112 @@
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:tools="http://schemas.android.com/tools"
android:background="@color/black"
android:orientation="vertical"
android:gravity="center">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center_vertical">
<TextView
android:id="@+id/text_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="FCast"
android:textColor="@color/white"
android:gravity="center"
android:fontFamily="@font/inter_bold"
android:textSize="40dp"
android:includeFontPadding="false"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"/>
<FrameLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintLeft_toRightOf="@id/text_title"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
android:layout_marginStart="10dp">
<ImageView
android:id="@+id/update_spinner"
android:layout_width="40dp"
android:layout_height="40dp"
app:srcCompat="@drawable/ic_update_animated" />
<TextView
android:id="@+id/text_progress"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:layout_gravity="center"
android:textSize="10sp"
android:textColor="@color/white"
android:fontFamily="@font/inter_regular" />
</FrameLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
<TextView
android:id="@+id/text_ips"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="@color/white"
android:gravity="center"
android:fontFamily="@font/inter_regular"
android:textSize="12dp"
tools:text="123" />
<TextView
android:id="@+id/text_dialog"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/there_is_an_update_available_do_you_wish_to_update"
android:textSize="14sp"
android:minLines="3"
android:textColor="@color/white"
android:fontFamily="@font/inter_regular"
android:layout_marginTop="30dp"
android:layout_marginStart="30dp"
android:layout_marginEnd="30dp"
android:gravity="center"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center"
android:layout_marginTop="28dp"
android:layout_marginBottom="28dp">
<LinearLayout
android:id="@+id/button_update"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/background_button_primary"
android:layout_marginEnd="28dp"
android:clickable="true">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/update"
android:textSize="14sp"
android:textColor="@color/white"
android:fontFamily="@font/inter_regular"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:paddingStart="28dp"
android:paddingEnd="28dp"/>
</LinearLayout>
</LinearLayout>
</LinearLayout>

14
receivers/android/app/src/main/res/layout/activity_player.xml Normal file
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@ -0,0 +1,14 @@
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/black">
<com.google.android.exoplayer2.ui.StyledPlayerView
android:id="@+id/player_control_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:keepScreenOn="true"
app:use_controller="true" />
</FrameLayout>

5
receivers/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml Normal file
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@ -0,0 +1,5 @@
<?xml version="1.0" encoding="utf-8"?>
<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
<background android:drawable="@drawable/ic_launcher_background" />
<foreground android:drawable="@drawable/ic_launcher_foreground" />
</adaptive-icon>

5
receivers/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml Normal file
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@ -0,0 +1,5 @@
<?xml version="1.0" encoding="utf-8"?>
<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
<background android:drawable="@drawable/ic_launcher_background" />
<foreground android:drawable="@drawable/ic_launcher_foreground" />
</adaptive-icon>

6
receivers/android/app/src/main/res/mipmap-anydpi-v33/ic_launcher.xml Normal file
View file

@ -0,0 +1,6 @@
<?xml version="1.0" encoding="utf-8"?>
<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
<background android:drawable="@drawable/ic_launcher_background" />
<foreground android:drawable="@drawable/ic_launcher_foreground" />
<monochrome android:drawable="@drawable/ic_launcher_foreground" />
</adaptive-icon>

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10
receivers/android/app/src/main/res/values/colors.xml Normal file
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@ -0,0 +1,10 @@
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="purple_200">#FFBB86FC</color>
<color name="purple_500">#FF6200EE</color>
<color name="purple_700">#FF3700B3</color>
<color name="teal_200">#FF03DAC5</color>
<color name="teal_700">#FF018786</color>
<color name="black">#FF000000</color>
<color name="white">#FFFFFFFF</color>
</resources>

24
receivers/android/app/src/main/res/values/strings.xml Normal file
View file

@ -0,0 +1,24 @@
<resources>
<string name="app_name">FCastReceiver</string>
<string name="general_failure">The operation failed in a generic way</string>
<string name="aborted">The operation failed because it was actively aborted</string>
<string name="blocked">The operation failed because it was blocked</string>
<string name="conflict">The operation failed because it conflicts (or is inconsistent with) with another package already installed on the device</string>
<string name="incompatible">The operation failed because it is fundamentally incompatible with this device</string>
<string name="invalid">The operation failed because one or more of the APKs was invalid</string>
<string name="not_enough_storage">The operation failed because of storage issues</string>
<string name="downloading_update">Downloading update...</string>
<string name="installing_update">Installing update...</string>
<string name="success">Success</string>
<string name="failed_to_update_with_error">Failed to update package with error</string>
<string name="there_is_an_update_available_do_you_wish_to_update">There is an update available for FCast receiver, do you wish to update?</string>
<string name="never">Never</string>
<string name="close">Close</string>
<string name="update">Update</string>
<string name="checking_for_updates">Checking for updates...</string>
<string name="no_updates_available">No updates available</string>
<string name="permission_dialog_title">System Alert Window Permission</string>
<string name="permission_dialog_message">This app requires the System Alert Window permission to display content on top of other apps. Please grant the permission.</string>
<string name="permission_dialog_positive_button">Allow</string>
<string name="permission_dialog_negative_button">Cancel</string>
</resources>

7
receivers/android/app/src/main/res/values/themes.xml Normal file
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<resources xmlns:tools="http://schemas.android.com/tools">
<style name="Theme.Player" parent="Theme.AppCompat.NoActionBar">
</style>
<style name="Theme.Main" parent="Theme.AppCompat.NoActionBar">
</style>
</resources>

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receivers/android/app/src/main/res/xml/backup_rules.xml Normal file
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<?xml version="1.0" encoding="utf-8"?><!--
Sample backup rules file; uncomment and customize as necessary.
See https://developer.android.com/guide/topics/data/autobackup
for details.
Note: This file is ignored for devices older that API 31
See https://developer.android.com/about/versions/12/backup-restore
-->
<full-backup-content>
<!--
<include domain="sharedpref" path="."/>
<exclude domain="sharedpref" path="device.xml"/>
-->
</full-backup-content>

19
receivers/android/app/src/main/res/xml/data_extraction_rules.xml Normal file
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<?xml version="1.0" encoding="utf-8"?><!--
Sample data extraction rules file; uncomment and customize as necessary.
See https://developer.android.com/about/versions/12/backup-restore#xml-changes
for details.
-->
<data-extraction-rules>
<cloud-backup>
<!-- TODO: Use <include> and <exclude> to control what is backed up.
<include .../>
<exclude .../>
-->
</cloud-backup>
<!--
<device-transfer>
<include .../>
<exclude .../>
</device-transfer>
-->
</data-extraction-rules>

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receivers/android/app/src/test/java/com/futo/fcast/receiver/ExampleUnitTest.kt Normal file
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package com.futo.fcast.receiver
import org.junit.Test
import org.junit.Assert.*
/**
* Example local unit test, which will execute on the development machine (host).
*
* See [testing documentation](http://d.android.com/tools/testing).
*/
class ExampleUnitTest {
@Test
fun addition_isCorrect() {
assertEquals(4, 2 + 2)
}
}

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// Top-level build file where you can add configuration options common to all sub-projects/modules.
plugins {
id 'com.android.application' version '7.4.2' apply false
id 'com.android.library' version '7.4.2' apply false
id 'org.jetbrains.kotlin.android' version '1.8.0' apply false
}

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receivers/android/gradle.properties Normal file
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# Project-wide Gradle settings.
# IDE (e.g. Android Studio) users:
# Gradle settings configured through the IDE *will override*
# any settings specified in this file.
# For more details on how to configure your build environment visit
# http://www.gradle.org/docs/current/userguide/build_environment.html
# Specifies the JVM arguments used for the daemon process.
# The setting is particularly useful for tweaking memory settings.
org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
# When configured, Gradle will run in incubating parallel mode.
# This option should only be used with decoupled projects. More details, visit
# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
# org.gradle.parallel=true
# AndroidX package structure to make it clearer which packages are bundled with the
# Android operating system, and which are packaged with your app's APK
# https://developer.android.com/topic/libraries/support-library/androidx-rn
android.useAndroidX=true
# Kotlin code style for this project: "official" or "obsolete":
kotlin.code.style=official
# Enables namespacing of each library's R class so that its R class includes only the
# resources declared in the library itself and none from the library's dependencies,
# thereby reducing the size of the R class for that library
android.nonTransitiveRClass=true

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receivers/android/gradle/wrapper/gradle-wrapper.properties vendored Normal file
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#Mon May 01 06:24:43 CDT 2023
distributionBase=GRADLE_USER_HOME
distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
distributionPath=wrapper/dists
zipStorePath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME

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#!/usr/bin/env sh
#
# Copyright 2015 the original author or authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
##############################################################################
##
## Gradle start up script for UN*X
##
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
PRG="$0"
# Need this for relative symlinks.
while [ -h "$PRG" ] ; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
else
PRG=`dirname "$PRG"`"/$link"
fi
done
SAVED="`pwd`"
cd "`dirname \"$PRG\"`/" >/dev/null
APP_HOME="`pwd -P`"
cd "$SAVED" >/dev/null
APP_NAME="Gradle"
APP_BASE_NAME=`basename "$0"`
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD="maximum"
warn () {
echo "$*"
}
die () {
echo
echo "$*"
echo
exit 1
}
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "`uname`" in
CYGWIN* )
cygwin=true
;;
Darwin* )
darwin=true
;;
MINGW* )
msys=true
;;
NONSTOP* )
nonstop=true
;;
esac
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD="java"
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
# Increase the maximum file descriptors if we can.
if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
MAX_FD_LIMIT=`ulimit -H -n`
if [ $? -eq 0 ] ; then
if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
MAX_FD="$MAX_FD_LIMIT"
fi
ulimit -n $MAX_FD
if [ $? -ne 0 ] ; then
warn "Could not set maximum file descriptor limit: $MAX_FD"
fi
else
warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
fi
fi
# For Darwin, add options to specify how the application appears in the dock
if $darwin; then
GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
fi
# For Cygwin or MSYS, switch paths to Windows format before running java
if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
APP_HOME=`cygpath --path --mixed "$APP_HOME"`
CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
JAVACMD=`cygpath --unix "$JAVACMD"`
# We build the pattern for arguments to be converted via cygpath
ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
SEP=""
for dir in $ROOTDIRSRAW ; do
ROOTDIRS="$ROOTDIRS$SEP$dir"
SEP="|"
done
OURCYGPATTERN="(^($ROOTDIRS))"
# Add a user-defined pattern to the cygpath arguments
if [ "$GRADLE_CYGPATTERN" != "" ] ; then
OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
fi
# Now convert the arguments - kludge to limit ourselves to /bin/sh
i=0
for arg in "$@" ; do
CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
else
eval `echo args$i`="\"$arg\""
fi
i=`expr $i + 1`
done
case $i in
0) set -- ;;
1) set -- "$args0" ;;
2) set -- "$args0" "$args1" ;;
3) set -- "$args0" "$args1" "$args2" ;;
4) set -- "$args0" "$args1" "$args2" "$args3" ;;
5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
esac
fi
# Escape application args
save () {
for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
echo " "
}
APP_ARGS=`save "$@"`
# Collect all arguments for the java command, following the shell quoting and substitution rules
eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
exec "$JAVACMD" "$@"

89
receivers/android/gradlew.bat vendored Normal file
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@rem
@rem Copyright 2015 the original author or authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem https://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem
@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Resolve any "." and ".." in APP_HOME to make it shorter.
for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto execute
echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto execute
echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:execute
@rem Setup the command line
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

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receivers/android/settings.gradle Normal file
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pluginManagement {
repositories {
google()
mavenCentral()
gradlePluginPortal()
}
}
dependencyResolutionManagement {
repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
repositories {
google()
mavenCentral()
}
}
rootProject.name = "FCastReceiver"
include ':app'

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receivers/electron/.gitignore vendored Normal file
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# Logs
logs
*.log
npm-debug.log*
yarn-debug.log*
yarn-error.log*
lerna-debug.log*
.pnpm-debug.log*
# Diagnostic reports (https://nodejs.org/api/report.html)
report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
# Runtime data
pids
*.pid
*.seed
*.pid.lock
# Directory for instrumented libs generated by jscoverage/JSCover
lib-cov
# Coverage directory used by tools like istanbul
coverage
*.lcov
# nyc test coverage
.nyc_output
# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
.grunt
# Bower dependency directory (https://bower.io/)
bower_components
# node-waf configuration
.lock-wscript
# Compiled binary addons (https://nodejs.org/api/addons.html)
build/Release
# Dependency directories
node_modules/
jspm_packages/
# Snowpack dependency directory (https://snowpack.dev/)
web_modules/
# TypeScript cache
*.tsbuildinfo
# Optional npm cache directory
.npm
# Optional eslint cache
.eslintcache
# Optional stylelint cache
.stylelintcache
# Microbundle cache
.rpt2_cache/
.rts2_cache_cjs/
.rts2_cache_es/
.rts2_cache_umd/
# Optional REPL history
.node_repl_history
# Output of 'npm pack'
*.tgz
# Yarn Integrity file
.yarn-integrity
# dotenv environment variable files
.env
.env.development.local
.env.test.local
.env.production.local
.env.local
# parcel-bundler cache (https://parceljs.org/)
.cache
.parcel-cache
# Next.js build output
.next
out
# Nuxt.js build / generate output
.nuxt
dist
# Gatsby files
.cache/
# Comment in the public line in if your project uses Gatsby and not Next.js
# https://nextjs.org/blog/next-9-1#public-directory-support
# public
# vuepress build output
.vuepress/dist
# vuepress v2.x temp and cache directory
.temp
.cache
# Docusaurus cache and generated files
.docusaurus
# Serverless directories
.serverless/
# FuseBox cache
.fusebox/
# DynamoDB Local files
.dynamodb/
# TernJS port file
.tern-port
# Stores VSCode versions used for testing VSCode extensions
.vscode-test
# yarn v2
.yarn/cache
.yarn/unplugged
.yarn/build-state.yml
.yarn/install-state.gz
.pnp.*
packaging/*.zip

674
receivers/electron/LICENSE Normal file
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@ -0,0 +1,674 @@
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The GNU General Public License is a free, copyleft license for
software and other kinds of works.
The licenses for most software and other practical works are designed
to take away your freedom to share and change the works. By contrast,
the GNU General Public License is intended to guarantee your freedom to
share and change all versions of a program--to make sure it remains free
software for all its users. We, the Free Software Foundation, use the
GNU General Public License for most of our software; it applies also to
any other work released this way by its authors. You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
them if you wish), that you receive source code or can get it if you
want it, that you can change the software or use pieces of it in new
free programs, and that you know you can do these things.
To protect your rights, we need to prevent others from denying you
these rights or asking you to surrender the rights. Therefore, you have
certain responsibilities if you distribute copies of the software, or if
you modify it: responsibilities to respect the freedom of others.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must pass on to the recipients the same
freedoms that you received. You must make sure that they, too, receive
or can get the source code. And you must show them these terms so they
know their rights.
Developers that use the GNU GPL protect your rights with two steps:
(1) assert copyright on the software, and (2) offer you this License
giving you legal permission to copy, distribute and/or modify it.
For the developers' and authors' protection, the GPL clearly explains
that there is no warranty for this free software. For both users' and
authors' sake, the GPL requires that modified versions be marked as
changed, so that their problems will not be attributed erroneously to
authors of previous versions.
Some devices are designed to deny users access to install or run
modified versions of the software inside them, although the manufacturer
can do so. This is fundamentally incompatible with the aim of
protecting users' freedom to change the software. The systematic
pattern of such abuse occurs in the area of products for individuals to
use, which is precisely where it is most unacceptable. Therefore, we
have designed this version of the GPL to prohibit the practice for those
products. If such problems arise substantially in other domains, we
stand ready to extend this provision to those domains in future versions
of the GPL, as needed to protect the freedom of users.
Finally, every program is threatened constantly by software patents.
States should not allow patents to restrict development and use of
software on general-purpose computers, but in those that do, we wish to
avoid the special danger that patents applied to a free program could
make it effectively proprietary. To prevent this, the GPL assures that
patents cannot be used to render the program non-free.
The precise terms and conditions for copying, distribution and
modification follow.
TERMS AND CONDITIONS
0. Definitions.
"This License" refers to version 3 of the GNU General Public License.
"Copyright" also means copyright-like laws that apply to other kinds of
works, such as semiconductor masks.
"The Program" refers to any copyrightable work licensed under this
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To "modify" a work means to copy from or adapt all or part of the work
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exact copy. The resulting work is called a "modified version" of the
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A "covered work" means either the unmodified Program or a work based
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To "propagate" a work means to do anything with it that, without
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To "convey" a work means any kind of propagation that enables other
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An interactive user interface displays "Appropriate Legal Notices"
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END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) 2023 Koen
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) 2023 Koen
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

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# What is FCast?
FCast is a protocol designed for wireless streaming of audio and video content between devices. Unlike alternative protocols like Chromecast and AirPlay, FCast is an open source protocol that allows for custom receiver implementations, enabling third-party developers to create their own receiver devices or integrate the FCast protocol into their own apps.
# Why do I need a receiver?
The FCast receiver is a working receiver implementation compatible with Linux, Windows and MacOS that supports various stream types such as DASH, HLS and mp4.
![FCast receiver running on Linux](images/Untitled2.png)
# Protocol specification
The protocol specification can be found here https://gitlab.futo.org/fcast/fcast-receiver/-/wikis/Protocol
# How to run
1. Download the latest build for your platform from https://gitlab.futo.org/fcast/fcast-receiver/-/releases or build it yourself by following the build instructions.
2. Unzip the archive at your desired location.
3. Run the FCast receiver.
- **MacOS:** Run the FCastReceiver application
- **Linux:** Run the `fcast-receiver` application
- **Windows:** Run the `fcast-receiver.exe` application
4. You should now have the receiver running on the background. On desktop it will have a tray icon as such allowing you to close the receiver.
![FCast receiver tray icon running on Linux](images/Untitled.png)
# Connecting to the FCast receiver with the video streaming application
## Automatic discovery
1. Open the video streaming application.
2. Open the FCast receiver or restart it.
3. The receiver should now be visible in the casting dialog under "Discovered Devices".
4. If this failed, try manually connecting it. Automatic discovery does not work on all network types.
5. Click start to connect to the device.
6. Start watching content.
## Manual
1. Open the FCast receiver.
2. Find the IP of the device running the receiver.
3. Open the video streaming application.
4. Open the casting dialog.
5. Click add to manually add a device.
6. Select the FCast protocol, enter a descriptive name, the IP you found and port 46899.
7. Click start to connect to the device.
8. Start watching content.
![Manual add dialog in video streaming app](images/Untitled3.png)
# How to build
# Preparing for build
Run the following commands in the `root` directory.
```
npm install
```
# Building
Run the following commands in the `root` directory.
```
npm run build
```
# Packaging
## Windows
Run the following commands in the `packaging` directory.
```
sh package.sh win32-x64
```
## MacOS ARM64
Run the following commands in the `packaging` directory.
```
sh package-macos.sh darwin-arm64
```
## MacOS x64
Run the following commands in the `packaging` directory.
```
sh package-macos.sh darwin-x64
```
## Linux x64
Run the following commands in the `packaging` directory.
```
sh package.sh linux-x64
```

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#!/bin/sh
npm install
npm run build
cp package.json /var/www/html/fcastreceiver/
cp -r dist /var/www/html/fcastreceiver/
ls /var/www/html/fcastreceiver
ls /var/www/html/fcastreceiver/dist

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{
"name": "fcast-receiver",
"version": "1.0.7",
"description": "An application implementing a FCast receiver.",
"main": "dist/bundle.js",
"author": "Koen Jeukendrup",
"license": "MIT",
"scripts": {
"build": "rm -rf dist/ && webpack --config ./webpack.config.js && cp src/*.html dist/ && cp src/*.js dist/ && cp src/*.css dist/ && cp app.ico dist/ && cp app.png dist/",
"start": "npm run build && electron ."
},
"devDependencies": {
"@types/workerpool": "^6.1.1",
"electron": "^22.2.0",
"mdns-js": "github:mdns-js/node-mdns-js",
"ts-loader": "^9.4.2",
"typescript": "^4.9.5",
"webpack": "^5.75.0",
"webpack-cli": "^5.0.1"
}
}

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#!/bin/sh
npm run build
sh package.sh linux-x64
sh package.sh win32-x64
sh package-macos.sh darwin-x64
sh package-macos.sh darwin-arm64

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#!/bin/sh
filename="electron-v23.0.0-$1.zip"
url="https://github.com/electron/electron/releases/download/v23.0.0/electron-v23.0.0-$1.zip"
if [ ! -f $filename ]; then
wget $url
fi
rm fcast-receiver-$1.zip
rm -rf $1
unzip electron-v23.0.0-$1.zip -d $1
mkdir -p $1/Electron.app/Contents/Resources/app
mkdir -p $1/Electron.app/Contents/Resources/app
cp -r ../dist $1/Electron.app/Contents/Resources/app/
cp ../package.json $1/Electron.app/Contents/Resources/app
mv $1/Electron.app $1/FCastReceiver.app
cd $1
zip -r ../fcast-receiver-$1.zip FCastReceiver.app
cd ..
rm -rf $1

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#!/bin/sh
filename="electron-v23.0.0-$1.zip"
url="https://github.com/electron/electron/releases/download/v23.0.0/electron-v23.0.0-$1.zip"
if [ ! -f $filename ]; then
wget $url
fi
rm fcast-receiver-$1.zip
rm -rf $1
unzip electron-v23.0.0-$1.zip -d $1
mkdir -p $1/resources
mkdir -p $1/resources/app
cp -r ../dist $1/resources/app/
cp ../package.json $1/resources/app
if [ -f "$1/electron" ]; then
mv $1/electron $1/fcast-receiver
fi
if [ -f "$1/electron.exe" ]; then
mv $1/electron.exe $1/fcast-receiver.exe
fi
cd $1
zip -r ../fcast-receiver-$1.zip .
cd ..
rm -rf $1

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import { app } from 'electron';
import Main from './Main';
Main.main(app);

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import mdns = require('mdns-js');
const cp = require('child_process');
const os = require('os');
export class DiscoveryService {
private service: any;
private static getComputerName() {
switch (process.platform) {
case "win32":
return process.env.COMPUTERNAME;
case "darwin":
return cp.execSync("scutil --get ComputerName").toString().trim();
case "linux":
const prettyname = cp.execSync("hostnamectl --pretty").toString().trim();
return prettyname === "" ? os.hostname() : prettyname;
default:
return os.hostname();
}
}
start() {
if (this.service) {
return;
}
const name = `FCast-${DiscoveryService.getComputerName()}`;
console.log("Discovery service started.", name);
this.service = mdns.createAdvertisement(mdns.tcp('_fcast'), 46899, { name: name });
this.service.start();
}
stop() {
if (!this.service) {
return;
}
this.service.stop();
this.service = null;
}
}

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import net = require('net');
import { FCastSession } from './FCastSession';
import { EventEmitter } from 'node:events';
import { PlaybackUpdateMessage, PlayMessage, SeekMessage, SetVolumeMessage, VolumeUpdateMessage } from './Packets';
import { dialog } from 'electron';
import Main from './Main';
export class FCastService {
emitter = new EventEmitter();
private server: net.Server;
private sessions: FCastSession[] = [];
start() {
if (this.server != null) {
return;
}
this.server = net.createServer()
.listen(46899)
.on("connection", this.handleConnection.bind(this))
.on("error", this.handleServerError.bind(this));
}
stop() {
if (this.server == null) {
return;
}
const server = this.server;
this.server = null;
server.close();
}
sendPlaybackUpdate(value: PlaybackUpdateMessage) {
console.info("Sending playback update.", value);
this.sessions.forEach(session => {
try {
session.sendPlaybackUpdate(value);
} catch (e) {
console.warn("Failed to send update.", e);
session.socket.end();
}
});
}
sendVolumeUpdate(value: VolumeUpdateMessage) {
console.info("Sending volume update.", value);
this.sessions.forEach(session => {
try {
session.sendVolumeUpdate(value);
} catch (e) {
console.warn("Failed to send update.", e);
session.socket.end();
}
});
}
private async handleServerError(err: NodeJS.ErrnoException) {
console.error("Server error:", err);
const restartPrompt = await dialog.showMessageBox({
type: 'error',
title: 'Failed to start',
message: 'The application failed to start properly.',
buttons: ['Restart', 'Close'],
defaultId: 0,
cancelId: 1
});
if (restartPrompt.response === 0) {
Main.application.relaunch();
Main.application.exit(0);
} else {
Main.application.exit(0);
}
}
private handleConnection(socket: net.Socket) {
console.log(`new connection from ${socket.remoteAddress}:${socket.remotePort}`);
const session = new FCastSession(socket);
session.emitter.on("play", (body: PlayMessage) => { this.emitter.emit("play", body) });
session.emitter.on("pause", () => { this.emitter.emit("pause") });
session.emitter.on("resume", () => { this.emitter.emit("resume") });
session.emitter.on("stop", () => { this.emitter.emit("stop") });
session.emitter.on("seek", (body: SeekMessage) => { this.emitter.emit("seek", body) });
session.emitter.on("setvolume", (body: SetVolumeMessage) => { this.emitter.emit("setvolume", body) });
this.sessions.push(session);
socket.on("error", (err) => {
console.warn(`Error from ${socket.remoteAddress}:${socket.remotePort}.`, err);
socket.destroy();
});
socket.on("data", buffer => {
try {
session.processBytes(buffer);
} catch (e) {
console.warn(`Error while handling packet from ${socket.remoteAddress}:${socket.remotePort}.`, e);
socket.end();
}
});
socket.on("close", () => {
const index = this.sessions.indexOf(session);
if (index != -1) {
this.sessions.splice(index, 1);
}
});
}
}

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import net = require('net');
import { EventEmitter } from 'node:events';
import { PlaybackUpdateMessage, PlayMessage, SeekMessage, SetVolumeMessage, VolumeUpdateMessage } from './Packets';
enum SessionState {
Idle = 0,
WaitingForLength,
WaitingForData,
Disconnected,
};
enum Opcode {
None = 0,
Play = 1,
Pause = 2,
Resume = 3,
Stop = 4,
Seek = 5,
PlaybackUpdate = 6,
VolumeUpdate = 7,
SetVolume = 8
};
const LENGTH_BYTES = 4;
const MAXIMUM_PACKET_LENGTH = 32000;
export class FCastSession {
buffer: Buffer = Buffer.alloc(MAXIMUM_PACKET_LENGTH);
bytesRead = 0;
packetLength = 0;
socket: net.Socket;
state: SessionState;
emitter = new EventEmitter();
constructor(socket: net.Socket) {
this.socket = socket;
this.state = SessionState.WaitingForLength;
}
sendPlaybackUpdate(value: PlaybackUpdateMessage) {
this.send(Opcode.PlaybackUpdate, value);
}
sendVolumeUpdate(value: VolumeUpdateMessage) {
this.send(Opcode.VolumeUpdate, value);
}
private send(opcode: number, message = null) {
const json = message ? JSON.stringify(message) : null;
let data: Uint8Array;
if (json) {
const utf8Encode = new TextEncoder();
data = utf8Encode.encode(json);
} else {
data = new Uint8Array(0);
}
const size = 1 + data.length;
const header = Buffer.alloc(4 + 1);
header.writeUint32LE(size, 0);
header[4] = opcode;
let packet: Buffer;
if (data.length > 0) {
packet = Buffer.concat([ header, data ]);
} else {
packet = header;
}
this.socket.write(packet);
}
processBytes(receivedBytes: Buffer) {
//TODO: Multithreading?
if (receivedBytes.length == 0) {
return;
}
console.log(`${receivedBytes.length} bytes received from ${this.socket.remoteAddress}:${this.socket.remotePort}`);
switch (this.state) {
case SessionState.WaitingForLength:
this.handleLengthBytes(receivedBytes);
break;
case SessionState.WaitingForData:
this.handlePacketBytes(receivedBytes);
break;
default:
console.log(`Data received is unhandled in current session state ${this.state}.`);
break;
}
}
private handleLengthBytes(receivedBytes: Buffer) {
const bytesToRead = Math.min(LENGTH_BYTES, receivedBytes.length);
const bytesRemaining = receivedBytes.length - bytesToRead;
receivedBytes.copy(this.buffer, this.bytesRead, 0, bytesToRead);
this.bytesRead += bytesToRead;
console.log(`handleLengthBytes: Read ${bytesToRead} bytes from packet`);
if (this.bytesRead >= LENGTH_BYTES) {
this.state = SessionState.WaitingForData;
this.packetLength = this.buffer.readUInt32LE(0);
this.bytesRead = 0;
console.log(`Packet length header received from ${this.socket.remoteAddress}:${this.socket.remotePort}: ${this.packetLength}`);
if (this.packetLength > MAXIMUM_PACKET_LENGTH) {
console.log(`Maximum packet length is 32kB, killing socket ${this.socket.remoteAddress}:${this.socket.remotePort}: ${this.packetLength}`);
this.socket.end();
this.state = SessionState.Disconnected;
return;
}
if (bytesRemaining > 0) {
console.log(`${bytesRemaining} remaining bytes ${this.socket.remoteAddress}:${this.socket.remotePort} pushed to handlePacketBytes`);
this.handlePacketBytes(receivedBytes.slice(bytesToRead));
}
}
}
private handlePacketBytes(receivedBytes: Buffer) {
const bytesToRead = Math.min(this.packetLength, receivedBytes.length);
const bytesRemaining = receivedBytes.length - bytesToRead;
receivedBytes.copy(this.buffer, this.bytesRead, 0, bytesToRead);
this.bytesRead += bytesToRead;
console.log(`handlePacketBytes: Read ${bytesToRead} bytes from packet`);
if (this.bytesRead >= this.packetLength) {
console.log(`Packet finished receiving from ${this.socket.remoteAddress}:${this.socket.remotePort} of ${this.packetLength} bytes.`);
this.handlePacket();
this.state = SessionState.WaitingForLength;
this.packetLength = 0;
this.bytesRead = 0;
if (bytesRemaining > 0) {
console.log(`${bytesRemaining} remaining bytes ${this.socket.remoteAddress}:${this.socket.remotePort} pushed to handleLengthBytes`);
this.handleLengthBytes(receivedBytes.slice(bytesToRead));
}
}
}
private handlePacket() {
console.log(`Processing packet of ${this.bytesRead} bytes from ${this.socket.remoteAddress}:${this.socket.remotePort}`);
const opcode = this.buffer[0];
const body = this.packetLength > 1 ? this.buffer.toString('utf8', 1, this.packetLength) : null;
console.log('body', body);
try {
switch (opcode) {
case Opcode.Play:
this.emitter.emit("play", JSON.parse(body) as PlayMessage);
break;
case Opcode.Pause:
this.emitter.emit("pause");
break;
case Opcode.Resume:
this.emitter.emit("resume");
break;
case Opcode.Stop:
this.emitter.emit("stop");
break;
case Opcode.Seek:
this.emitter.emit("seek", JSON.parse(body) as SeekMessage);
break;
case Opcode.SetVolume:
this.emitter.emit("setvolume", JSON.parse(body) as SetVolumeMessage);
break;
}
} catch (e) {
console.warn(`Error handling packet from ${this.socket.remoteAddress}:${this.socket.remotePort}.`, e);
}
}
}

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import { BrowserWindow, ipcMain, IpcMainEvent, nativeImage, Tray, Menu, dialog } from 'electron';
import path = require('path');
import { FCastService } from './FCastService';
import { PlaybackUpdateMessage, SetVolumeMessage, VolumeUpdateMessage } from './Packets';
import { DiscoveryService } from './DiscoveryService';
import { Updater } from './Updater';
export default class Main {
static mainWindow: Electron.BrowserWindow;
static application: Electron.App;
static service: FCastService;
static discoveryService: DiscoveryService;
static tray: Tray;
private static createTray() {
const icon = (process.platform === 'win32') ? path.join(__dirname, 'app.ico') : path.join(__dirname, 'app.png');
const trayicon = nativeImage.createFromPath(icon)
const tray = new Tray(trayicon.resize({ width: 16 }));
const contextMenu = Menu.buildFromTemplate([
{
label: 'Check for updates',
click: async () => {
try {
const updater = new Updater(path.join(__dirname, '../'), 'https://releases.grayjay.app/fcastreceiver');
if (await updater.update()) {
const restartPrompt = await dialog.showMessageBox({
type: 'info',
title: 'Update completed',
message: 'The application has been updated. Restart now to apply the changes.',
buttons: ['Restart'],
defaultId: 0
});
console.log('Update completed');
// Restart the app if the user clicks the 'Restart' button
if (restartPrompt.response === 0) {
Main.application.relaunch();
Main.application.exit(0);
}
} else {
await dialog.showMessageBox({
type: 'info',
title: 'Already up-to-date',
message: 'The application is already on the latest version.',
buttons: ['OK'],
defaultId: 0
});
}
} catch (err) {
await dialog.showMessageBox({
type: 'error',
title: 'Failed to update',
message: 'The application failed to update.',
buttons: ['OK'],
defaultId: 0
});
console.error('Failed to update:', err);
}
},
},
{
type: 'separator',
},
{
label: 'Restart',
click: () => {
this.application.relaunch();
this.application.exit(0);
}
},
{
label: 'Quit',
click: () => {
this.application.quit();
}
}
])
tray.setContextMenu(contextMenu);
this.tray = tray;
}
private static onClose() {
Main.mainWindow = null;
}
private static onReady() {
Main.createTray();
Main.discoveryService = new DiscoveryService();
Main.discoveryService.start();
Main.service = new FCastService();
Main.service.emitter.on("play", (message) => {
if (Main.mainWindow == null) {
Main.mainWindow = new BrowserWindow({
fullscreen: true,
autoHideMenuBar: true,
webPreferences: {
preload: path.join(__dirname, 'preload.js')
}
});
Main.mainWindow.setAlwaysOnTop(false, 'pop-up-menu');
Main.mainWindow.show();
Main.mainWindow.loadFile(path.join(__dirname, 'index.html'));
Main.mainWindow.on('ready-to-show', () => {
Main.mainWindow?.webContents?.send("play", message);
});
Main.mainWindow.on('closed', Main.onClose);
} else {
Main.mainWindow?.webContents?.send("play", message);
}
});
Main.service.emitter.on("pause", () => Main.mainWindow?.webContents?.send("pause"));
Main.service.emitter.on("resume", () => Main.mainWindow?.webContents?.send("resume"));
Main.service.emitter.on("stop", () => {
Main.mainWindow.close();
Main.mainWindow = null;
});
Main.service.emitter.on("seek", (message) => Main.mainWindow?.webContents?.send("seek", message));
Main.service.emitter.on("setvolume", (message) => Main.mainWindow?.webContents?.send("setvolume", message));
Main.service.start();
ipcMain.on('toggle-full-screen', () => {
const window = Main.mainWindow;
if (!window) {
return;
}
window.setFullScreen(!window.isFullScreen());
});
ipcMain.on('exit-full-screen', () => {
const window = Main.mainWindow;
if (!window) {
return;
}
window.setFullScreen(false);
});
ipcMain.on('send-playback-update', (event: IpcMainEvent, value: PlaybackUpdateMessage) => {
Main.service.sendPlaybackUpdate(value);
});
ipcMain.on('send-volume-update', (event: IpcMainEvent, value: VolumeUpdateMessage) => {
Main.service.sendVolumeUpdate(value);
});
}
static main(app: Electron.App) {
Main.application = app;
Main.application.on('ready', Main.onReady);
Main.application.on('window-all-closed', () => { });
}
}

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export class PlayMessage {
constructor(
public container: String,
public url: String = null,
public content: String = null,
public time: number = null
) {}
}
export class SeekMessage {
constructor(
public time: number,
) {}
}
export class PlaybackUpdateMessage {
constructor(
public time: number,
public state: number
) {}
}
export class VolumeUpdateMessage {
constructor(
public volume: number
) {}
}
export class SetVolumeMessage {
constructor(
public volume: number,
) {}
}

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import * as fs from 'fs';
import * as https from 'https';
import * as path from 'path';
import { URL } from 'url';
export class Updater {
private basePath: string;
private baseUrl: string;
private appFiles: string[];
constructor(basePath: string, baseUrl: string) {
this.basePath = basePath;
this.baseUrl = baseUrl;
this.appFiles = [
'dist/app.ico',
'dist/index.html',
'dist/style.css',
'dist/app.png',
'dist/preload.js',
'dist/video-js.min.css',
'dist/bundle.js',
'dist/renderer.js',
'dist/video.min.js',
'package.json'
];
}
private async fetchJSON(url: string): Promise<any> {
return new Promise((resolve, reject) => {
https.get(url, (res) => {
let data = '';
res.on('data', (chunk) => {
data += chunk;
});
res.on('end', () => {
try {
resolve(JSON.parse(data));
} catch (err) {
reject(err);
}
});
}).on('error', (err) => {
reject(err);
});
});
}
private async downloadFile(url: string, destination: string): Promise<void> {
return new Promise((resolve, reject) => {
const file = fs.createWriteStream(destination);
https.get(url, (response) => {
response.pipe(file);
file.on('finish', () => {
file.close();
resolve();
});
}).on('error', (err) => {
file.close();
reject(err);
});
});
}
private compareVersions(v1: string, v2: string): number {
const v1Parts = v1.split('.').map(Number);
const v2Parts = v2.split('.').map(Number);
for (let i = 0; i < v1Parts.length; i++) {
if (v1Parts[i] > v2Parts[i]) {
return 1;
} else if (v1Parts[i] < v2Parts[i]) {
return -1;
}
}
return 0;
}
public async update(): Promise<Boolean> {
console.log("Updater invoked", { baseUrl: this.baseUrl, basePath: this.basePath });
const localPackage = JSON.parse(fs.readFileSync(path.join(this.basePath, './package.json'), 'utf-8'));
const remotePackage = await this.fetchJSON(`${this.baseUrl}/package.json`.toString());
console.log('Update check', { localVersion: localPackage.version, remoteVersion: remotePackage.version });
if (this.compareVersions(remotePackage.version, localPackage.version) === 1) {
for (const file of this.appFiles) {
const fileUrl = `${this.baseUrl}/${file}`;
const destination = path.join(this.basePath, file);
console.log(`Downloading '${fileUrl}' to '${destination}'.`);
await this.downloadFile(fileUrl.toString(), destination);
}
return true;
}
return false;
}
}

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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link href="./video-js.min.css" rel="stylesheet">
<link rel="stylesheet" href="./style.css" />
</head>
<body>
<video id="video-player" class="video-js" controls preload="auto" data-setup='{}'>
<p class="vjs-no-js">
To view this video please enable JavaScript, and consider upgrading to a web browser that
<a href="https://videojs.com/html5-video-support/" target="_blank">supports HTML5 video
</a>
</p>
</video>
<script>window.HELP_IMPROVE_VIDEOJS = false;</script>
<script src="./video.min.js"></script>
<script src="./renderer.js"></script>
</body>
</html>

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const { contextBridge, ipcRenderer } = require('electron');
contextBridge.exposeInMainWorld('electronAPI', {
toggleFullScreen: () => ipcRenderer.send('toggle-full-screen'),
exitFullScreen: () => ipcRenderer.send('exit-full-screen'),
sendPlaybackUpdate: (update) => ipcRenderer.send('send-playback-update', update),
sendVolumeUpdate: (update) => ipcRenderer.send('send-volume-update', update),
onPlay: (callback) => ipcRenderer.on("play", callback),
onPause: (callback) => ipcRenderer.on("pause", callback),
onResume: (callback) => ipcRenderer.on("resume", callback),
onSeek: (callback) => ipcRenderer.on("seek", callback),
onSetVolume: (callback) => ipcRenderer.on("setvolume", callback)
});

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function toggleFullScreen(ev) {
window.electronAPI.toggleFullScreen();
}
const options = {
textTrackSettings: false
};
const player = videojs("video-player", options, function onPlayerReady() {
const fullScreenControls = document.getElementsByClassName("vjs-fullscreen-control");
for (let i = 0; i < fullScreenControls.length; i++) {
const node = fullScreenControls[i].cloneNode(true);
fullScreenControls[i].parentNode.replaceChild(node, fullScreenControls[i]);
fullScreenControls[i].onclick = toggleFullScreen;
fullScreenControls[i].ontap = toggleFullScreen;
}
});
player.on("pause", () => { window.electronAPI.sendPlaybackUpdate({ time: Math.round(player.currentTime()), state: 2 }) });
player.on("play", () => { window.electronAPI.sendPlaybackUpdate({ time: Math.round(player.currentTime()), state: 1 }) });
player.on("seeked", () => { window.electronAPI.sendPlaybackUpdate({ time: Math.round(player.currentTime()), state: player.paused() ? 2 : 1 }) });
player.on("volumechange", () => { window.electronAPI.sendVolumeUpdate({ volume: player.volume() }); });
window.electronAPI.onPlay((_event, value) => {
console.log("Handle play message renderer", value);
if (value.content) {
player.src({ type: value.container, src: `data:${value.container};base64,` + window.btoa(value.content) });
} else {
player.src({ type: value.container, src: value.url });
}
player.play();
if (value.time) {
player.currentTime(value.time);
}
});
window.electronAPI.onPause((_event) => {
console.log("Handle pause");
player.pause();
});
window.electronAPI.onResume((_event) => {
console.log("Handle resume");
player.play();
});
window.electronAPI.onSeek((_event, value) => {
console.log("Handle seek");
player.currentTime(value.time);
});
window.electronAPI.onSetVolume((_event, value) => {
console.log("Handle setVolume");
player.volume(Math.min(1.0, Math.max(0.0, value.volume)));
});
setInterval(() => {
window.electronAPI.sendPlaybackUpdate({ time: Math.round(player.currentTime()), state: player.paused() ? 2 : 1 });
}, 1000);
let mouseTimer = null;
let cursorVisible = true;
//Hide mouse cursor
function startMouseHideTimer() {
mouseTimer = window.setTimeout(() => {
mouseTimer = null;
document.body.style.cursor = "none";
cursorVisible = false;
}, 3000);
}
document.onmousemove = function() {
if (mouseTimer) {
window.clearTimeout(mouseTimer);
}
if (!cursorVisible) {
document.body.style.cursor = "default";
cursorVisible = true;
}
startMouseHideTimer();
};
startMouseHideTimer();
// Add the keydown event listener to the document
const skipInterval = 10;
const volumeIncrement = 0.1;
document.addEventListener('keydown', (event) => {
console.log("KeyDown", event);
switch (event.code) {
case 'F11':
window.electronAPI.toggleFullScreen();
event.preventDefault();
break;
case 'Escape':
window.electronAPI.exitFullScreen();
event.preventDefault();
break;
case 'ArrowLeft':
// Skip back
player.currentTime(Math.max(player.currentTime() - skipInterval, 0));
event.preventDefault();
break;
case 'ArrowRight':
// Skip forward
player.currentTime(Math.min(player.currentTime() + skipInterval, player.duration()));
event.preventDefault();
break;
case 'Space':
case 'Enter':
// Pause/Continue
if (player.paused()) {
player.play();
} else {
player.pause();
}
event.preventDefault();
break;
case 'KeyM':
// Mute toggle
player.muted(!player.muted());
break;
case 'ArrowUp':
// Volume up
player.volume(Math.min(player.volume() + volumeIncrement, 1));
break;
case 'ArrowDown':
// Volume down
player.volume(Math.max(player.volume() - volumeIncrement, 0));
break;
}
});
//Select subtitle track by default
player.ready(() => {
const textTracks = player.textTracks();
textTracks.addEventListener("change", function () {
console.log("Text tracks changed", textTracks);
for (let i = 0; i < textTracks.length; i++) {
if (textTracks[i].language === "en" && textTracks[i].mode !== "showing") {
textTracks[i].mode = "showing";
}
}
});
player.on('loadedmetadata', function () {
console.log("Metadata loaded", textTracks);
for (let i = 0; i < textTracks.length; i++) {
if (textTracks[i].language === "en" && textTracks[i].mode !== "showing") {
textTracks[i].mode = "showing";
}
}
});
});

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html {
margin: 0;
padding: 0;
overflow: hidden;
}
body {
margin: 0;
padding: 0;
background-color: black;
color: white;
width: 100vw;
max-width: 100%;
height: 100vh;
max-height: 100%;
}
#video-player {
object-fit: contain;
width: 100%;
height: 100%;
}
*:focus {
outline: none;
box-shadow: none;
}

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{
"compilerOptions": {
"target": "es5",
"module": "commonjs",
"moduleResolution": "node",
"sourceMap": false,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"removeComments": false,
"noImplicitAny": false,
"suppressImplicitAnyIndexErrors": true ,
"outDir": "dist"
},
"exclude": [ "node_modules" ]
}

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const path = require('path');
module.exports = {
mode: 'development',
entry: './src/App.ts',
target: 'electron-main',
module: {
rules: [
{
test: /\.tsx?$/,
include: /src/,
use: [{ loader: 'ts-loader' }]
}
],
},
resolve: {
extensions: ['.tsx', '.ts', '.js'],
},
output: {
filename: 'bundle.js',
path: path.resolve(__dirname, 'dist'),
},
};