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.gitignore vendored Normal file
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.idea
.gradle
*iml
build
/*.properties
out
*.log
build-*.sh
.DS_Store

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[submodule "drongo"]
path = drongo
url = ../../sparrowwallet/drongo.git

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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
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otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
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transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
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"Work" shall mean the work of authorship, whether in Source or
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(an example is provided in the Appendix below).
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unless required by applicable law (such as deliberate and grossly
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END OF TERMS AND CONDITIONS

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# Frigate Electrum Server
Frigate is an experimental Electrum Server testing Silent Payments scanning with ephemeral client keys.

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build.gradle Normal file
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plugins {
id 'application'
id 'org.gradlex.extra-java-module-info' version '1.13'
}
group = 'com.sparrowwallet.frigate'
version = '1.0-SNAPSHOT'
repositories {
mavenCentral()
}
dependencies {
implementation(project(':drongo'))
implementation('com.google.guava:guava:33.0.0-jre')
implementation('com.google.code.gson:gson:2.9.1')
implementation('com.github.arteam:simple-json-rpc-core:1.3')
implementation('com.github.arteam:simple-json-rpc-client:1.3') {
exclude group: 'com.github.arteam', module: 'simple-json-rpc-core'
}
implementation('com.github.arteam:simple-json-rpc-server:1.3') {
exclude group: 'org.slf4j'
}
implementation('com.fasterxml.jackson.core:jackson-databind:2.17.2')
implementation('org.jcommander:jcommander:2.0')
implementation ('org.slf4j:slf4j-api:2.0.12')
testImplementation platform('org.junit:junit-bom:5.10.0')
testImplementation 'org.junit.jupiter:junit-jupiter'
}
test {
useJUnitPlatform()
}
application {
mainModule = 'com.sparrowwallet.frigate'
mainClass = 'com.sparrowwallet.frigate.Frigate'
}
extraJavaModuleInfo {
module('com.github.arteam:simple-json-rpc-core', 'simple.json.rpc.core') {
exports('com.github.arteam.simplejsonrpc.core.annotation')
exports('com.github.arteam.simplejsonrpc.core.domain')
requires('com.fasterxml.jackson.core')
requires('com.fasterxml.jackson.annotation')
requires('com.fasterxml.jackson.databind')
requires('org.jetbrains.annotations')
}
module('com.github.arteam:simple-json-rpc-client', 'simple.json.rpc.client') {
exports('com.github.arteam.simplejsonrpc.client')
exports('com.github.arteam.simplejsonrpc.client.builder')
exports('com.github.arteam.simplejsonrpc.client.exception')
requires('com.fasterxml.jackson.core')
requires('com.fasterxml.jackson.databind')
requires('simple.json.rpc.core')
}
module('com.github.arteam:simple-json-rpc-server', 'simple.json.rpc.server') {
exports('com.github.arteam.simplejsonrpc.server')
requires('simple.json.rpc.core')
requires('com.google.common')
requires('org.slf4j')
requires('com.fasterxml.jackson.databind')
}
module('com.google.guava:listenablefuture|empty-to-avoid-conflict-with-guava', 'com.google.guava.listenablefuture')
module('com.google.code.findbugs:jsr305', 'com.google.code.findbugs.jsr305')
module('j2objc-annotations-2.8.jar', 'com.google.j2objc.j2objc.annotations', '2.8')
module('org.jcommander:jcommander', 'org.jcommander') {
exports('com.beust.jcommander')
}
}

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drongo Submodule

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Subproject commit 23f2b9197a42d799120abe16db9131601d63dcff

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gradle/wrapper/gradle-wrapper.properties vendored Normal file
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distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.3-bin.zip
networkTimeout=10000
validateDistributionUrl=true
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists

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#!/bin/sh
#
# Copyright © 2015-2021 the original 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.
#
# SPDX-License-Identifier: Apache-2.0
#
##############################################################################
#
# Gradle start up script for POSIX generated by Gradle.
#
# Important for running:
#
# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
# noncompliant, but you have some other compliant shell such as ksh or
# bash, then to run this script, type that shell name before the whole
# command line, like:
#
# ksh Gradle
#
# Busybox and similar reduced shells will NOT work, because this script
# requires all of these POSIX shell features:
# * functions;
# * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
# «${var#prefix}», «${var%suffix}», and «$( cmd )»;
# * compound commands having a testable exit status, especially «case»;
# * various built-in commands including «command», «set», and «ulimit».
#
# Important for patching:
#
# (2) This script targets any POSIX shell, so it avoids extensions provided
# by Bash, Ksh, etc; in particular arrays are avoided.
#
# The "traditional" practice of packing multiple parameters into a
# space-separated string is a well documented source of bugs and security
# problems, so this is (mostly) avoided, by progressively accumulating
# options in "$@", and eventually passing that to Java.
#
# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
# see the in-line comments for details.
#
# There are tweaks for specific operating systems such as AIX, CygWin,
# Darwin, MinGW, and NonStop.
#
# (3) This script is generated from the Groovy template
# https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
# within the Gradle project.
#
# You can find Gradle at https://github.com/gradle/gradle/.
#
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
app_path=$0
# Need this for daisy-chained symlinks.
while
APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path
[ -h "$app_path" ]
do
ls=$( ls -ld "$app_path" )
link=${ls#*' -> '}
case $link in #(
/*) app_path=$link ;; #(
*) app_path=$APP_HOME$link ;;
esac
done
# This is normally unused
# shellcheck disable=SC2034
APP_BASE_NAME=${0##*/}
# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD=maximum
warn () {
echo "$*"
} >&2
die () {
echo
echo "$*"
echo
exit 1
} >&2
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "$( uname )" in #(
CYGWIN* ) cygwin=true ;; #(
Darwin* ) darwin=true ;; #(
MSYS* | MINGW* ) msys=true ;; #(
NONSTOP* ) nonstop=true ;;
esac
CLASSPATH="\\\"\\\""
# Determine the Java command to use to start the JVM.
if [ -n "$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: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD=java
if ! command -v java >/dev/null 2>&1
then
die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
fi
# Increase the maximum file descriptors if we can.
if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
case $MAX_FD in #(
max*)
# In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
# shellcheck disable=SC2039,SC3045
MAX_FD=$( ulimit -H -n ) ||
warn "Could not query maximum file descriptor limit"
esac
case $MAX_FD in #(
'' | soft) :;; #(
*)
# In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
# shellcheck disable=SC2039,SC3045
ulimit -n "$MAX_FD" ||
warn "Could not set maximum file descriptor limit to $MAX_FD"
esac
fi
# Collect all arguments for the java command, stacking in reverse order:
# * args from the command line
# * the main class name
# * -classpath
# * -D...appname settings
# * --module-path (only if needed)
# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
# For Cygwin or MSYS, switch paths to Windows format before running java
if "$cygwin" || "$msys" ; then
APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
JAVACMD=$( cygpath --unix "$JAVACMD" )
# Now convert the arguments - kludge to limit ourselves to /bin/sh
for arg do
if
case $arg in #(
-*) false ;; # don't mess with options #(
/?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath
[ -e "$t" ] ;; #(
*) false ;;
esac
then
arg=$( cygpath --path --ignore --mixed "$arg" )
fi
# Roll the args list around exactly as many times as the number of
# args, so each arg winds up back in the position where it started, but
# possibly modified.
#
# NB: a `for` loop captures its iteration list before it begins, so
# changing the positional parameters here affects neither the number of
# iterations, nor the values presented in `arg`.
shift # remove old arg
set -- "$@" "$arg" # push replacement arg
done
fi
# 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"'
# Collect all arguments for the java command:
# * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
# and any embedded shellness will be escaped.
# * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
# treated as '${Hostname}' itself on the command line.
set -- \
"-Dorg.gradle.appname=$APP_BASE_NAME" \
-classpath "$CLASSPATH" \
-jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
"$@"
# Stop when "xargs" is not available.
if ! command -v xargs >/dev/null 2>&1
then
die "xargs is not available"
fi
# Use "xargs" to parse quoted args.
#
# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
#
# In Bash we could simply go:
#
# readarray ARGS < <( xargs -n1 <<<"$var" ) &&
# set -- "${ARGS[@]}" "$@"
#
# but POSIX shell has neither arrays nor command substitution, so instead we
# post-process each arg (as a line of input to sed) to backslash-escape any
# character that might be a shell metacharacter, then use eval to reverse
# that process (while maintaining the separation between arguments), and wrap
# the whole thing up as a single "set" statement.
#
# This will of course break if any of these variables contains a newline or
# an unmatched quote.
#
eval "set -- $(
printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
xargs -n1 |
sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
tr '\n' ' '
)" '"$@"'
exec "$JAVACMD" "$@"

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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
@rem SPDX-License-Identifier: Apache-2.0
@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=.
@rem This is normally unused
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% equ 0 goto execute
echo. 1>&2
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
echo. 1>&2
echo Please set the JAVA_HOME variable in your environment to match the 1>&2
echo location of your Java installation. 1>&2
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto execute
echo. 1>&2
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
echo. 1>&2
echo Please set the JAVA_HOME variable in your environment to match the 1>&2
echo location of your Java installation. 1>&2
goto fail
:execute
@rem Setup the command line
set CLASSPATH=
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
:end
@rem End local scope for the variables with windows NT shell
if %ERRORLEVEL% equ 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!
set EXIT_CODE=%ERRORLEVEL%
if %EXIT_CODE% equ 0 set EXIT_CODE=1
if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
exit /b %EXIT_CODE%
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

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settings.gradle Normal file
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rootProject.name = 'frigate'
include 'drongo'

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src/main/java/com/sparrowwallet/frigate/Args.java Normal file
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package com.sparrowwallet.frigate;
import com.beust.jcommander.Parameter;
import com.sparrowwallet.drongo.Network;
import org.slf4j.event.Level;
import java.util.ArrayList;
import java.util.List;
public class Args {
@Parameter(names = { "--dir", "-d" }, description = "Path to Sparrow home folder")
public String dir;
@Parameter(names = { "--network", "-n" }, description = "Network to use")
public Network network;
@Parameter(names = { "--level", "-l" }, description = "Set log level")
public Level level;
@Parameter(names = { "--version", "-v" }, description = "Show version", arity = 0)
public boolean version;
@Parameter(names = { "--help", "-h" }, description = "Show usage", help = true)
public boolean help;
public List<String> toParams() {
List<String> params = new ArrayList<>();
if(dir != null) {
params.add("-d");
params.add(dir);
}
if(network != null) {
params.add("-n");
params.add(network.toString());
}
if(level != null) {
params.add("-l");
params.add(level.toString());
}
return params;
}
}

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src/main/java/com/sparrowwallet/frigate/ConfigurationException.java Normal file
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package com.sparrowwallet.frigate;
public class ConfigurationException extends RuntimeException {
public ConfigurationException(String message) {
super(message);
}
public ConfigurationException(String message, Throwable cause) {
super(message, cause);
}
}

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src/main/java/com/sparrowwallet/frigate/Frigate.java Normal file
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package com.sparrowwallet.frigate;
import com.beust.jcommander.JCommander;
import com.google.common.eventbus.EventBus;
import com.sparrowwallet.drongo.Drongo;
import com.sparrowwallet.drongo.Network;
import com.sparrowwallet.frigate.electrum.ElectrumServerRunnable;
import com.sparrowwallet.frigate.index.BitcoindClient;
import com.sparrowwallet.frigate.io.Storage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.util.Locale;
public class Frigate {
public static final String SERVER_NAME = "Frigate";
public static final String SERVER_VERSION = "0.0.1";
public static final String APP_HOME_PROPERTY = "frigate.home";
public static final String NETWORK_ENV_PROPERTY = "FRIGATE_NETWORK";
private static final EventBus EVENT_BUS = new EventBus();
private BitcoindClient bitcoindClient;
private ElectrumServerRunnable electrumServer;
private boolean running;
public void start() {
bitcoindClient = new BitcoindClient();
bitcoindClient.initialize();
electrumServer = new ElectrumServerRunnable(bitcoindClient);
Thread electrumServerThread = new Thread(electrumServer, "Frigate Electrum Server");
electrumServerThread.setDaemon(true);
electrumServerThread.start();
running = true;
}
public boolean isRunning() {
return running;
}
public void stop() {
if(bitcoindClient != null) {
bitcoindClient.stop();
}
if(electrumServer != null) {
electrumServer.stop();
}
running = false;
}
public static EventBus getEventBus() {
return EVENT_BUS;
}
private static Logger getLogger() {
return LoggerFactory.getLogger(Frigate.class);
}
public static void main(String[] argv) {
Args args = new Args();
JCommander jCommander = JCommander.newBuilder().addObject(args).programName(SERVER_NAME.toLowerCase(Locale.ROOT)).acceptUnknownOptions(true).build();
jCommander.parse(argv);
if(args.help) {
jCommander.usage();
System.exit(0);
}
if(args.version) {
System.out.println(SERVER_NAME + " " + SERVER_VERSION);
System.exit(0);
}
if(args.level != null) {
Drongo.setRootLogLevel(args.level);
}
if(args.dir != null) {
System.setProperty(APP_HOME_PROPERTY, args.dir);
getLogger().info("Using configured Sparrow home folder of " + args.dir);
}
if(args.network != null) {
Network.set(args.network);
} else {
String envNetwork = System.getenv(NETWORK_ENV_PROPERTY);
if(envNetwork != null) {
try {
Network.set(Network.valueOf(envNetwork.toUpperCase(Locale.ROOT)));
} catch(Exception e) {
getLogger().warn("Invalid " + NETWORK_ENV_PROPERTY + " property: " + envNetwork);
}
}
}
File testnetFlag = new File(Storage.getFrigateHome(), "network-" + Network.TESTNET.getName());
if(testnetFlag.exists()) {
Network.set(Network.TESTNET);
}
File testnet4Flag = new File(Storage.getFrigateHome(), "network-" + Network.TESTNET4.getName());
if(testnet4Flag.exists()) {
Network.set(Network.TESTNET4);
}
File signetFlag = new File(Storage.getFrigateHome(), "network-" + Network.SIGNET.getName());
if(signetFlag.exists()) {
Network.set(Network.SIGNET);
}
if(Network.get() != Network.MAINNET) {
getLogger().info("Using " + Network.get() + " configuration");
}
Frigate frigate = new Frigate();
frigate.start();
}
}

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src/main/java/com/sparrowwallet/frigate/electrum/BitcoindIOException.java Normal file
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package com.sparrowwallet.frigate.electrum;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcError;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcErrorData;
import com.google.common.base.Throwables;
@JsonRpcError(code=-32000, message="Could not connect to Bitcoin Core RPC")
public class BitcoindIOException extends Exception {
@JsonRpcErrorData
private final String rootCause;
public BitcoindIOException(Throwable rootCause) {
super("Could not connect to Bitcoin Core RPC");
this.rootCause = Throwables.getRootCause(rootCause).getMessage();
}
public String getRootCause() {
return rootCause;
}
}

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src/main/java/com/sparrowwallet/frigate/electrum/BlockNotFoundException.java Normal file
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package com.sparrowwallet.frigate.electrum;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcError;
import com.github.arteam.simplejsonrpc.core.domain.ErrorMessage;
@JsonRpcError(code=-32002)
public class BlockNotFoundException extends Exception {
private final String message;
public BlockNotFoundException(ErrorMessage errorMessage) {
this.message = errorMessage == null ? "" : errorMessage.getMessage() + (errorMessage.getData() == null ? "" : " (" + errorMessage.getData() + ")");
}
@Override
public String getMessage() {
return message;
}
}

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src/main/java/com/sparrowwallet/frigate/electrum/BroadcastFailedException.java Normal file
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package com.sparrowwallet.frigate.electrum;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcError;
import com.github.arteam.simplejsonrpc.core.domain.ErrorMessage;
@JsonRpcError(code=-32003)
public class BroadcastFailedException extends Exception {
private final String message;
public BroadcastFailedException(ErrorMessage errorMessage) {
this.message = errorMessage == null ? "" : errorMessage.getMessage() + (errorMessage.getData() == null ? "" : " (" + errorMessage.getData() + ")");
}
public String getMessage() {
return message;
}
}

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src/main/java/com/sparrowwallet/frigate/electrum/ElectrumBlockHeader.java Normal file
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package com.sparrowwallet.frigate.electrum;
public record ElectrumBlockHeader(int height, String hex) {
}

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src/main/java/com/sparrowwallet/frigate/electrum/ElectrumNotificationService.java Normal file
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package com.sparrowwallet.frigate.electrum;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcMethod;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcOptional;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcParam;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcService;
@JsonRpcService
public interface ElectrumNotificationService {
@JsonRpcMethod("blockchain.headers.subscribe")
void notifyHeaders(@JsonRpcParam("header") ElectrumBlockHeader electrumBlockHeader);
@JsonRpcMethod("blockchain.scripthash.subscribe")
void notifyScriptHash(@JsonRpcParam("scripthash") String scriptHash, @JsonRpcOptional @JsonRpcParam("status") String status);
}

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src/main/java/com/sparrowwallet/frigate/electrum/ElectrumNotificationTransport.java Normal file
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package com.sparrowwallet.frigate.electrum;
import com.github.arteam.simplejsonrpc.client.Transport;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.Socket;
import java.nio.charset.StandardCharsets;
public class ElectrumNotificationTransport implements Transport {
private final Socket clientSocket;
public ElectrumNotificationTransport(Socket clientSocket) {
this.clientSocket = clientSocket;
}
@Override
public String pass(String request) throws IOException {
PrintWriter out = new PrintWriter(new OutputStreamWriter(clientSocket.getOutputStream(), StandardCharsets.UTF_8));
out.println(request);
out.flush();
return "{\"result\":{},\"error\":null,\"id\":1}";
}
}

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src/main/java/com/sparrowwallet/frigate/electrum/ElectrumServerRunnable.java Normal file
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package com.sparrowwallet.frigate.electrum;
import com.sparrowwallet.frigate.index.BitcoindClient;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
public class ElectrumServerRunnable implements Runnable {
private static final Logger log = LoggerFactory.getLogger(ElectrumServerRunnable.class);
private final BitcoindClient bitcoindClient;
protected ServerSocket serverSocket = null;
protected boolean stopped = false;
protected Thread runningThread = null;
protected ExecutorService threadPool = Executors.newFixedThreadPool(10, r -> {
Thread t = Executors.defaultThreadFactory().newThread(r);
t.setDaemon(true);
return t;
});
public ElectrumServerRunnable(BitcoindClient bitcoindClient) {
this.bitcoindClient = bitcoindClient;
openServerSocket();
}
public int getPort() {
return serverSocket.getLocalPort();
}
public void run() {
synchronized(this) {
this.runningThread = Thread.currentThread();
}
while(!isStopped()) {
Socket clientSocket;
try {
clientSocket = this.serverSocket.accept();
} catch(IOException e) {
if(isStopped()) {
break;
}
throw new RuntimeException("Error accepting client connection", e);
}
RequestHandler requestHandler = new RequestHandler(clientSocket, bitcoindClient);
this.threadPool.execute(requestHandler);
}
this.threadPool.shutdown();
}
private synchronized boolean isStopped() {
return stopped;
}
public synchronized void stop() {
stopped = true;
try {
serverSocket.close();
} catch(IOException e) {
throw new RuntimeException("Error closing server", e);
}
}
private void openServerSocket() {
try {
serverSocket = new ServerSocket(0);
} catch(IOException e) {
throw new RuntimeException("Cannot open electrum server port", e);
}
}
}

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src/main/java/com/sparrowwallet/frigate/electrum/ElectrumServerService.java Normal file
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package com.sparrowwallet.frigate.electrum;
import com.github.arteam.simplejsonrpc.client.exception.JsonRpcException;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcMethod;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcOptional;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcParam;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcService;
import com.sparrowwallet.drongo.Version;
import com.sparrowwallet.frigate.Frigate;
import com.sparrowwallet.frigate.index.BitcoindClient;
import com.sparrowwallet.frigate.index.BlockStats;
import com.sparrowwallet.frigate.index.FeeInfo;
import com.sparrowwallet.frigate.index.MempoolInfo;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.*;
@JsonRpcService
public class ElectrumServerService {
private static final Logger log = LoggerFactory.getLogger(ElectrumServerService.class);
private static final Version VERSION = new Version("1.4");
private static final double DEFAULT_FEE_RATE = 0.00001d;
private final BitcoindClient bitcoindClient;
private final RequestHandler requestHandler;
public ElectrumServerService(BitcoindClient bitcoindClient, RequestHandler requestHandler) {
this.bitcoindClient = bitcoindClient;
this.requestHandler = requestHandler;
}
@JsonRpcMethod("server.version")
public List<String> getServerVersion(@JsonRpcParam("client_name") String clientName, @JsonRpcParam("protocol_version") String[] protocolVersion) throws UnsupportedVersionException {
String version = protocolVersion.length > 1 ? protocolVersion[1] : protocolVersion[0];
Version clientVersion = new Version(version);
if(clientVersion.compareTo(VERSION) < 0) {
throw new UnsupportedVersionException(version);
}
return List.of(Frigate.SERVER_NAME + " " + Frigate.SERVER_VERSION, VERSION.get());
}
@JsonRpcMethod("server.banner")
public String getServerBanner() {
return Frigate.SERVER_NAME + " " + Frigate.SERVER_VERSION + "\n" + bitcoindClient.getNetworkInfo().subversion() + (bitcoindClient.getNetworkInfo().networkactive() ? "" : " (disconnected)");
}
@JsonRpcMethod("blockchain.estimatefee")
public Double estimateFee(@JsonRpcParam("number") int blocks) throws BitcoindIOException {
try {
FeeInfo feeInfo = bitcoindClient.getBitcoindService().estimateSmartFee(blocks);
if(feeInfo == null || feeInfo.feerate() == null) {
return DEFAULT_FEE_RATE;
}
return feeInfo.feerate();
} catch(IllegalStateException e) {
throw new BitcoindIOException(e);
}
}
@JsonRpcMethod("blockchain.relayfee")
public Double getRelayFee() throws BitcoindIOException {
try {
MempoolInfo mempoolInfo = bitcoindClient.getBitcoindService().getMempoolInfo();
return mempoolInfo.minrelaytxfee();
} catch(IllegalStateException e) {
throw new BitcoindIOException(e);
}
}
@JsonRpcMethod("blockchain.headers.subscribe")
public ElectrumBlockHeader subscribeHeaders() {
requestHandler.setHeadersSubscribed(true);
return bitcoindClient.getTip();
}
@JsonRpcMethod("server.ping")
public void ping() throws BitcoindIOException {
try {
bitcoindClient.getBitcoindService().uptime();
} catch(IllegalStateException e) {
throw new BitcoindIOException(e);
}
}
@JsonRpcMethod("blockchain.block.header")
public String getBlockHeader(@JsonRpcParam("height") int height) throws BitcoindIOException, BlockNotFoundException {
try {
String blockHash = bitcoindClient.getBitcoindService().getBlockHash(height);
return bitcoindClient.getBitcoindService().getBlockHeader(blockHash, false);
} catch(JsonRpcException e) {
throw new BlockNotFoundException(e.getErrorMessage());
} catch(IllegalStateException e) {
throw new BitcoindIOException(e);
}
}
@JsonRpcMethod("blockchain.block.stats")
public BlockStats getBlockStats(@JsonRpcParam("height") int height) throws BitcoindIOException, BlockNotFoundException {
try {
return bitcoindClient.getBitcoindService().getBlockStats(height);
} catch(JsonRpcException e) {
throw new BlockNotFoundException(e.getErrorMessage());
} catch(IllegalStateException e) {
throw new BitcoindIOException(e);
}
}
@JsonRpcMethod("blockchain.transaction.get")
@SuppressWarnings("unchecked")
public Object getTransaction(@JsonRpcParam("tx_hash") String tx_hash, @JsonRpcParam("verbose") @JsonRpcOptional boolean verbose) throws BitcoindIOException, TransactionNotFoundException {
if(verbose) {
try {
return bitcoindClient.getBitcoindService().getRawTransaction(tx_hash, true);
} catch(JsonRpcException e) {
try {
Map<String, Object> txInfo = bitcoindClient.getBitcoindService().getTransaction(tx_hash, true, true);
Object decoded = txInfo.get("decoded");
if(decoded instanceof Map<?, ?>) {
Map<String, Object> decodedMap = (Map<String, Object>)decoded;
decodedMap.put("hex", txInfo.get("hex"));
decodedMap.put("confirmations", txInfo.get("confirmations"));
decodedMap.put("blockhash", txInfo.get("blockhash"));
decodedMap.put("time", txInfo.get("time"));
decodedMap.put("blocktime", txInfo.get("blocktime"));
return decoded;
}
throw new TransactionNotFoundException(e.getErrorMessage());
} catch(JsonRpcException ex) {
throw new TransactionNotFoundException(ex.getErrorMessage());
} catch(IllegalStateException ex) {
throw new BitcoindIOException(ex);
}
} catch(IllegalStateException e) {
throw new BitcoindIOException(e);
}
} else {
try {
return bitcoindClient.getBitcoindService().getTransaction(tx_hash, true, false).get("hex");
} catch(JsonRpcException e) {
try {
return bitcoindClient.getBitcoindService().getRawTransaction(tx_hash, false);
} catch(JsonRpcException ex) {
throw new TransactionNotFoundException(ex.getErrorMessage());
} catch(IllegalStateException ex) {
throw new BitcoindIOException(e);
}
} catch(IllegalStateException e) {
throw new BitcoindIOException(e);
}
}
}
@JsonRpcMethod("blockchain.transaction.broadcast")
public String broadcastTransaction(@JsonRpcParam("raw_tx") String rawTx) throws BitcoindIOException, BroadcastFailedException {
try {
return bitcoindClient.getBitcoindService().sendRawTransaction(rawTx, 0d);
} catch(JsonRpcException e) {
throw new BroadcastFailedException(e.getErrorMessage());
} catch(IllegalStateException e) {
throw new BitcoindIOException(e);
}
}
}

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src/main/java/com/sparrowwallet/frigate/electrum/RequestHandler.java Normal file
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package com.sparrowwallet.frigate.electrum;
import com.github.arteam.simplejsonrpc.client.JsonRpcClient;
import com.github.arteam.simplejsonrpc.server.JsonRpcServer;
import com.google.common.eventbus.Subscribe;
import com.sparrowwallet.frigate.Frigate;
import com.sparrowwallet.frigate.index.BitcoindClient;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.*;
import java.net.Socket;
import java.nio.charset.StandardCharsets;
import java.util.HashSet;
import java.util.Set;
public class RequestHandler implements Runnable {
private static final Logger log = LoggerFactory.getLogger(RequestHandler.class);
private final Socket clientSocket;
private final ElectrumServerService electrumServerService;
private final JsonRpcServer rpcServer = new JsonRpcServer();
private boolean headersSubscribed;
private final Set<String> scriptHashesSubscribed = new HashSet<>();
public RequestHandler(Socket clientSocket, BitcoindClient bitcoindClient) {
this.clientSocket = clientSocket;
this.electrumServerService = new ElectrumServerService(bitcoindClient, this);
}
public void run() {
Frigate.getEventBus().register(this);
try {
InputStream input = clientSocket.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(input, StandardCharsets.UTF_8));
OutputStream output = clientSocket.getOutputStream();
PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(output, StandardCharsets.UTF_8)));
while(true) {
String request = reader.readLine();
if(request == null) {
break;
}
String response = rpcServer.handle(request, electrumServerService);
out.println(response);
out.flush();
}
} catch(IOException e) {
log.error("Could not communicate with client socket", e);
}
Frigate.getEventBus().unregister(this);
}
public void setHeadersSubscribed(boolean headersSubscribed) {
this.headersSubscribed = headersSubscribed;
}
public void subscribeScriptHash(String scriptHash) {
scriptHashesSubscribed.add(scriptHash);
}
public boolean isScriptHashSubscribed(String scriptHash) {
return scriptHashesSubscribed.contains(scriptHash);
}
@Subscribe
public void newBlock(ElectrumBlockHeader electrumBlockHeader) {
if(headersSubscribed) {
ElectrumNotificationTransport electrumNotificationTransport = new ElectrumNotificationTransport(clientSocket);
JsonRpcClient jsonRpcClient = new JsonRpcClient(electrumNotificationTransport);
jsonRpcClient.onDemand(ElectrumNotificationService.class).notifyHeaders(electrumBlockHeader);
}
}
@Subscribe
public void scriptHashStatus(ScriptHashStatus scriptHashStatus) {
if(isScriptHashSubscribed(scriptHashStatus.scriptHash())) {
ElectrumNotificationTransport electrumNotificationTransport = new ElectrumNotificationTransport(clientSocket);
JsonRpcClient jsonRpcClient = new JsonRpcClient(electrumNotificationTransport);
jsonRpcClient.onDemand(ElectrumNotificationService.class).notifyScriptHash(scriptHashStatus.scriptHash(), scriptHashStatus.status());
}
}
}

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src/main/java/com/sparrowwallet/frigate/electrum/ScriptHashStatus.java Normal file
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package com.sparrowwallet.frigate.electrum;
public record ScriptHashStatus(String scriptHash, String status) {
}

17
src/main/java/com/sparrowwallet/frigate/electrum/TransactionNotFoundException.java Normal file
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package com.sparrowwallet.frigate.electrum;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcError;
import com.github.arteam.simplejsonrpc.core.domain.ErrorMessage;
@JsonRpcError(code=-32001)
public class TransactionNotFoundException extends Exception {
private final String message;
public TransactionNotFoundException(ErrorMessage errorMessage) {
this.message = errorMessage == null ? "" : errorMessage.getMessage() + (errorMessage.getData() == null ? "" : " (" + errorMessage.getData() + ")");
}
public String getMessage() {
return message;
}
}

18
src/main/java/com/sparrowwallet/frigate/electrum/UnsupportedVersionException.java Normal file
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package com.sparrowwallet.frigate.electrum;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcError;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcErrorData;
@JsonRpcError(code=-32003, message="Unsupported version")
public class UnsupportedVersionException extends Exception {
@JsonRpcErrorData
private final String version;
public UnsupportedVersionException(String version) {
this.version = version;
}
public String getVersion() {
return version;
}
}

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src/main/java/com/sparrowwallet/frigate/index/BitcoindClient.java Normal file
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package com.sparrowwallet.frigate.index;
import com.github.arteam.simplejsonrpc.client.JsonRpcClient;
import com.sparrowwallet.frigate.ConfigurationException;
import com.sparrowwallet.frigate.Frigate;
import com.sparrowwallet.frigate.electrum.ElectrumBlockHeader;
import com.sparrowwallet.frigate.io.Config;
import com.sparrowwallet.frigate.io.CoreAuthType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.*;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
public class BitcoindClient {
private static final Logger log = LoggerFactory.getLogger(BitcoindClient.class);
private final JsonRpcClient jsonRpcClient;
private final Timer timer = new Timer(false);
private NetworkInfo networkInfo;
private String lastBlock;
private ElectrumBlockHeader tip;
private Exception lastPollException;
private final Lock syncingLock = new ReentrantLock();
private final Condition syncingCondition = syncingLock.newCondition();
private boolean syncing;
private boolean stopped;
public BitcoindClient() {
BitcoindTransport bitcoindTransport;
Config config = Config.get();
if((config.getCoreAuthType() == CoreAuthType.COOKIE || config.getCoreAuth() == null || config.getCoreAuth().length() < 2) && config.getCoreDataDir() != null) {
bitcoindTransport = new BitcoindTransport(config.getCoreServer(), config.getCoreDataDir());
} else if(config.getCoreAuth() != null) {
bitcoindTransport = new BitcoindTransport(config.getCoreServer(), config.getCoreAuth());
} else {
throw new ConfigurationException("Bitcoin Core data folder or user and password is required");
}
this.jsonRpcClient = new JsonRpcClient(bitcoindTransport);
}
public void initialize() {
networkInfo = getBitcoindService().getNetworkInfo();
BlockchainInfo blockchainInfo = getBitcoindService().getBlockchainInfo();
VerboseBlockHeader blockHeader = getBitcoindService().getBlockHeader(blockchainInfo.bestblockhash());
tip = blockHeader.getBlockHeader();
timer.schedule(new PollTask(), 5000, 5000);
if(blockchainInfo.initialblockdownload() && networkInfo.networkactive()) {
syncingLock.lock();
try {
syncing = true;
syncingCondition.await();
if(syncing) {
if(lastPollException instanceof RuntimeException runtimeException) {
throw runtimeException;
}
throw new RuntimeException("Error while waiting for sync to complete", lastPollException);
}
} catch(InterruptedException e) {
throw new RuntimeException("Interrupted while waiting for sync to complete");
} finally {
syncingLock.unlock();
}
blockchainInfo = getBitcoindService().getBlockchainInfo();
blockHeader = getBitcoindService().getBlockHeader(blockchainInfo.bestblockhash());
tip = blockHeader.getBlockHeader();
}
lastBlock = blockchainInfo.bestblockhash();
}
public void stop() {
timer.cancel();
stopped = true;
}
public BitcoindClientService getBitcoindService() {
return jsonRpcClient.onDemand(BitcoindClientService.class);
}
public NetworkInfo getNetworkInfo() {
return networkInfo;
}
public ElectrumBlockHeader getTip() {
return tip;
}
private class PollTask extends TimerTask {
@Override
public void run() {
if(stopped) {
timer.cancel();
}
try {
if(syncing) {
BlockchainInfo blockchainInfo = getBitcoindService().getBlockchainInfo();
if(blockchainInfo.initialblockdownload() && !isEmptyBlockchain(blockchainInfo)) {
return;
} else {
syncing = false;
syncingLock.lock();
try {
syncingCondition.signal();
} finally {
syncingLock.unlock();
}
}
}
if(lastBlock != null && tip != null) {
String blockhash = getBitcoindService().getBlockHash(tip.height());
if(!lastBlock.equals(blockhash)) {
log.warn("Reorg detected, block height " + tip.height() + " was " + lastBlock + " and now is " + blockhash);
lastBlock = null;
}
}
BlockchainInfo blockchainInfo = getBitcoindService().getBlockchainInfo();
String currentBlock = lastBlock;
if(currentBlock == null || !currentBlock.equals(blockchainInfo.bestblockhash())) {
VerboseBlockHeader blockHeader = getBitcoindService().getBlockHeader(blockchainInfo.bestblockhash());
tip = blockHeader.getBlockHeader();
log.warn("New block height " + tip.height());
Frigate.getEventBus().post(tip);
}
lastBlock = blockchainInfo.bestblockhash();
} catch(Exception e) {
lastPollException = e;
log.warn("Error polling Bitcoin Core", e);
if(syncing) {
syncingLock.lock();
try {
syncingCondition.signal();
} finally {
syncingLock.unlock();
}
}
}
}
}
private boolean isEmptyBlockchain(BlockchainInfo blockchainInfo) {
return blockchainInfo.blocks() == 0 && blockchainInfo.getProgressPercent() == 100;
}
}

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src/main/java/com/sparrowwallet/frigate/index/BitcoindClientService.java Normal file
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package com.sparrowwallet.frigate.index;
import com.github.arteam.simplejsonrpc.client.JsonRpcParams;
import com.github.arteam.simplejsonrpc.client.ParamsType;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcMethod;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcOptional;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcParam;
import com.github.arteam.simplejsonrpc.core.annotation.JsonRpcService;
import com.sparrowwallet.drongo.protocol.Sha256Hash;
import java.util.List;
import java.util.Map;
import java.util.Set;
@JsonRpcService
@JsonRpcParams(ParamsType.ARRAY)
public interface BitcoindClientService {
@JsonRpcMethod("uptime")
long uptime();
@JsonRpcMethod("getnetworkinfo")
NetworkInfo getNetworkInfo();
@JsonRpcMethod("estimatesmartfee")
FeeInfo estimateSmartFee(@JsonRpcParam("conf_target") int blocks);
@JsonRpcMethod("getrawmempool")
Set<Sha256Hash> getRawMempool();
@JsonRpcMethod("getrawmempool")
Map<Sha256Hash, MempoolEntry> getRawMempool(@JsonRpcParam("verbose") boolean verbose);
@JsonRpcMethod("getmempoolinfo")
MempoolInfo getMempoolInfo();
@JsonRpcMethod("getblockchaininfo")
BlockchainInfo getBlockchainInfo();
@JsonRpcMethod("getblockhash")
String getBlockHash(@JsonRpcParam("height") int height);
@JsonRpcMethod("getblockheader")
String getBlockHeader(@JsonRpcParam("blockhash") String blockhash, @JsonRpcParam("verbose") boolean verbose);
@JsonRpcMethod("getblockheader")
VerboseBlockHeader getBlockHeader(@JsonRpcParam("blockhash") String blockhash);
@JsonRpcMethod("getblockstats")
BlockStats getBlockStats(@JsonRpcParam("blockhash") int hash_or_height);
@JsonRpcMethod("getrawtransaction")
Object getRawTransaction(@JsonRpcParam("txid") String txid, @JsonRpcParam("verbose") boolean verbose);
@JsonRpcMethod("gettransaction")
Map<String, Object> getTransaction(@JsonRpcParam("txid") String txid, @JsonRpcParam("include_watchonly") boolean includeWatchOnly, @JsonRpcParam("verbose") boolean verbose);
@JsonRpcMethod("getmempoolentry")
MempoolEntry getMempoolEntry(@JsonRpcParam("txid") String txid);
@JsonRpcMethod("sendrawtransaction")
String sendRawTransaction(@JsonRpcParam("hexstring") String rawTx, @JsonRpcParam("maxfeerate") Double maxFeeRate);
}

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src/main/java/com/sparrowwallet/frigate/index/BitcoindTransport.java Normal file
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package com.sparrowwallet.frigate.index;
import com.github.arteam.simplejsonrpc.client.Transport;
import com.sparrowwallet.drongo.Network;
import com.sparrowwallet.frigate.io.Server;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.net.ssl.*;
import java.io.*;
import java.net.*;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.Base64;
public class BitcoindTransport implements Transport {
private static final Logger log = LoggerFactory.getLogger(BitcoindTransport.class);
public static final String COOKIE_FILENAME = ".cookie";
private final Server bitcoindServer;
private URL bitcoindUrl;
private File cookieFile;
private Long cookieFileTimestamp;
private String bitcoindAuthEncoded;
public BitcoindTransport(Server bitcoindServer, String bitcoindAuth) {
this(bitcoindServer);
this.bitcoindAuthEncoded = Base64.getEncoder().encodeToString(bitcoindAuth.getBytes(StandardCharsets.UTF_8));
}
public BitcoindTransport(Server bitcoindServer, File bitcoindDir) {
this(bitcoindServer);
this.cookieFile = new File(getCookieDir(bitcoindDir), COOKIE_FILENAME);
}
private BitcoindTransport(Server bitcoindServer) {
this.bitcoindServer = bitcoindServer;
try {
String serverUrl = bitcoindServer.getUrl();
if(!bitcoindServer.getHostAndPort().hasPort()) {
serverUrl += ":" + Network.get().getDefaultPort();
}
this.bitcoindUrl = new URI(serverUrl).toURL();
} catch(MalformedURLException | URISyntaxException e) {
log.error("Malformed Bitcoin Core RPC URL", e);
}
}
@Override
public String pass(String request) throws IOException {
HttpURLConnection connection = (HttpURLConnection)bitcoindUrl.openConnection();
if(connection instanceof HttpsURLConnection httpsURLConnection) {
SSLSocketFactory sslSocketFactory = getTrustAllSocketFactory();
if(sslSocketFactory != null) {
httpsURLConnection.setSSLSocketFactory(sslSocketFactory);
}
}
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/json");
String auth = getBitcoindAuthEncoded();
if(auth != null) {
connection.setRequestProperty("Authorization", "Basic " + auth);
}
connection.setDoOutput(true);
log.debug("> " + request);
try(OutputStream os = connection.getOutputStream()) {
byte[] jsonBytes = request.getBytes(StandardCharsets.UTF_8);
os.write(jsonBytes);
}
int statusCode = connection.getResponseCode();
if(statusCode == 401) {
throw new IOException((cookieFile == null ? "User/pass" : "Cookie file") + " authentication failed");
}
InputStream inputStream = connection.getErrorStream() == null ? connection.getInputStream() : connection.getErrorStream();
StringBuilder res = new StringBuilder();
try(BufferedReader br = new BufferedReader(new InputStreamReader(inputStream, StandardCharsets.UTF_8))) {
String responseLine;
while((responseLine = br.readLine()) != null) {
if(statusCode == 500) {
responseLine = responseLine.replace("\"result\":null,", "");
}
res.append(responseLine.trim());
}
}
String response = res.toString();
log.debug("< " + response);
return response;
}
private String getBitcoindAuthEncoded() throws IOException {
if(cookieFile != null) {
if(!cookieFile.exists()) {
throw new IOException("Cannot find Bitcoin Core cookie file at " + cookieFile.getAbsolutePath());
}
if(cookieFileTimestamp == null || cookieFile.lastModified() != cookieFileTimestamp) {
try {
String userPass = Files.readAllLines(cookieFile.toPath()).get(0);
bitcoindAuthEncoded = Base64.getEncoder().encodeToString(userPass.getBytes(StandardCharsets.UTF_8));
cookieFileTimestamp = cookieFile.lastModified();
} catch(Exception e) {
log.warn("Cannot read Bitcoin Core .cookie file", e);
}
}
}
return bitcoindAuthEncoded;
}
private static File getCookieDir(File bitcoindDir) {
if(Network.get() == Network.TESTNET && Files.exists(Path.of(bitcoindDir.getAbsolutePath(), "testnet3", COOKIE_FILENAME))) {
return new File(bitcoindDir, "testnet3");
} else if(Network.get() == Network.TESTNET4 && Files.exists(Path.of(bitcoindDir.getAbsolutePath(), "testnet4", COOKIE_FILENAME))) {
return new File(bitcoindDir, "testnet4");
} else if(Network.get() == Network.REGTEST && Files.exists(Path.of(bitcoindDir.getAbsolutePath(), "regtest", COOKIE_FILENAME))) {
return new File(bitcoindDir, "regtest");
} else if(Network.get() == Network.SIGNET && Files.exists(Path.of(bitcoindDir.getAbsolutePath(), "signet", COOKIE_FILENAME))) {
return new File(bitcoindDir, "signet");
}
return bitcoindDir;
}
private SSLSocketFactory getTrustAllSocketFactory() {
TrustManager[] trustAllCerts = new TrustManager[] {
new X509TrustManager() {
public X509Certificate[] getAcceptedIssuers() {
return new X509Certificate[0];
}
public void checkClientTrusted(X509Certificate[] certs, String authType) throws CertificateException {
}
public void checkServerTrusted(X509Certificate[] certs, String authType) throws CertificateException {
}
}
};
try {
SSLContext sslContext = SSLContext.getInstance("TLS");
sslContext.init(null, trustAllCerts, null);
return sslContext.getSocketFactory();
} catch (Exception e) {
log.error("Error creating SSL socket factory", e);
}
return null;
}
}

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src/main/java/com/sparrowwallet/frigate/index/BlockStats.java Normal file
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package com.sparrowwallet.frigate.index;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import java.util.Date;
@JsonIgnoreProperties(ignoreUnknown = true)
public record BlockStats(int height, String blockhash, double[] feerate_percentiles, int total_weight, int txs, long time) {
public BlockSummary toBlockSummary() {
Double medianFee = feerate_percentiles != null && feerate_percentiles.length > 0 ? feerate_percentiles[feerate_percentiles.length / 2] : null;
return new BlockSummary(height, new Date(time * 1000), medianFee, txs, total_weight);
}
}

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src/main/java/com/sparrowwallet/frigate/index/BlockSummary.java Normal file
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package com.sparrowwallet.frigate.index;
import java.time.Instant;
import java.time.temporal.ChronoUnit;
import java.util.Date;
import java.util.Optional;
public class BlockSummary implements Comparable<BlockSummary> {
private final Integer height;
private final Date timestamp;
private final Double medianFee;
private final Integer transactionCount;
private final Integer weight;
public BlockSummary(Integer height, Date timestamp) {
this(height, timestamp, null, null, null);
}
public BlockSummary(Integer height, Date timestamp, Double medianFee, Integer transactionCount, Integer weight) {
this.height = height;
this.timestamp = timestamp;
this.medianFee = medianFee;
this.transactionCount = transactionCount;
this.weight = weight;
}
public Integer getHeight() {
return height;
}
public Date getTimestamp() {
return timestamp;
}
public Optional<Double> getMedianFee() {
return medianFee == null ? Optional.empty() : Optional.of(medianFee);
}
public Optional<Integer> getTransactionCount() {
return transactionCount == null ? Optional.empty() : Optional.of(transactionCount);
}
public Optional<Integer> getWeight() {
return weight == null ? Optional.empty() : Optional.of(weight);
}
private static long calculateElapsedSeconds(long timestampUtc) {
Instant timestampInstant = Instant.ofEpochMilli(timestampUtc);
Instant nowInstant = Instant.now();
return ChronoUnit.SECONDS.between(timestampInstant, nowInstant);
}
public String getElapsed() {
long elapsed = calculateElapsedSeconds(getTimestamp().getTime());
if(elapsed < 0) {
return "now";
} else if(elapsed < 60) {
return elapsed + "s";
} else if(elapsed < 3600) {
return elapsed / 60 + "m";
} else if(elapsed < 86400) {
return elapsed / 3600 + "h";
} else {
return elapsed / 86400 + "d";
}
}
public String toString() {
return getElapsed() + ":" + getMedianFee();
}
@Override
public int compareTo(BlockSummary o) {
return o.height - height;
}
}

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src/main/java/com/sparrowwallet/frigate/index/BlockchainInfo.java Normal file
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package com.sparrowwallet.frigate.index;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import java.util.Date;
@JsonIgnoreProperties(ignoreUnknown = true)
public record BlockchainInfo(int blocks, int headers, String bestblockhash, boolean initialblockdownload, long time, Double verificationprogress, boolean pruned, Integer pruneheight) {
public Date getTip() {
return new Date(time * 1000);
}
public int getProgressPercent() {
return (int) Math.floor(verificationprogress * 100);
}
}

10
src/main/java/com/sparrowwallet/frigate/index/FeeInfo.java Normal file
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package com.sparrowwallet.frigate.index;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import java.util.List;
@JsonIgnoreProperties(ignoreUnknown = true)
public record FeeInfo(Double feerate, List<String> errors, int blocks) {
}

7
src/main/java/com/sparrowwallet/frigate/index/FeesMempoolEntry.java Normal file
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package com.sparrowwallet.frigate.index;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
@JsonIgnoreProperties(ignoreUnknown = true)
public record FeesMempoolEntry(double base, double ancestor) {
}

18
src/main/java/com/sparrowwallet/frigate/index/MempoolEntry.java Normal file
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package com.sparrowwallet.frigate.index;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
@JsonIgnoreProperties(ignoreUnknown = true)
public record MempoolEntry(int vsize, int ancestorsize, boolean bip125_replaceable, FeesMempoolEntry fees) {
public boolean hasUnconfirmedParents() {
return vsize != ancestorsize;
}
public TxEntry getTxEntry(String txid) {
return new TxEntry(hasUnconfirmedParents() ? -1 : 0, 0, txid, fees().base());
}
public VsizeFeerate getVsizeFeerate() {
return new VsizeFeerate(vsize, fees().base());
}
}

7
src/main/java/com/sparrowwallet/frigate/index/MempoolInfo.java Normal file
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package com.sparrowwallet.frigate.index;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
@JsonIgnoreProperties(ignoreUnknown = true)
public record MempoolInfo(double minrelaytxfee) {
}

8
src/main/java/com/sparrowwallet/frigate/index/NetworkInfo.java Normal file
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package com.sparrowwallet.frigate.index;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
@JsonIgnoreProperties(ignoreUnknown = true)
public record NetworkInfo(int version, String subversion, boolean networkactive) {
}

80
src/main/java/com/sparrowwallet/frigate/index/TxEntry.java Normal file
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package com.sparrowwallet.frigate.index;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.sparrowwallet.drongo.protocol.Transaction;
import java.util.Objects;
@JsonInclude(JsonInclude.Include.NON_NULL)
public class TxEntry implements Comparable<TxEntry> {
public final int height;
private final transient int index;
public final String tx_hash;
public final Long fee;
public TxEntry(int height, int index, String tx_hash) {
this.height = height;
this.index = index;
this.tx_hash = tx_hash;
this.fee = null;
}
public TxEntry(int height, int index, String tx_hash, double btcFee) {
this.height = height;
this.index = index;
this.tx_hash = tx_hash;
this.fee = btcFee > 0.0 ? (long)(btcFee * Transaction.SATOSHIS_PER_BITCOIN) : null;
}
@Override
public boolean equals(Object o) {
if(this == o) {
return true;
}
if(!(o instanceof TxEntry txEntry)) {
return false;
}
return height == txEntry.height && tx_hash.equals(txEntry.tx_hash) && Objects.equals(fee, txEntry.fee);
}
@Override
public int hashCode() {
int result = height;
result = 31 * result + tx_hash.hashCode();
result = 31 * result + Objects.hashCode(fee);
return result;
}
@Override
public int compareTo(TxEntry o) {
if(height <= 0 && o.height > 0) {
return 1;
}
if(height > 0 && o.height <= 0) {
return -1;
}
if(height != o.height) {
return height - o.height;
}
if(height <= 0) {
return tx_hash.compareTo(o.tx_hash);
}
return index - o.index;
}
@Override
public String toString() {
return "TxEntry{" +
"height=" + height +
", index=" + index +
", tx_hash='" + tx_hash + '\'' +
", fee=" + fee +
'}';
}
}

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src/main/java/com/sparrowwallet/frigate/index/VerboseBlockHeader.java Normal file
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package com.sparrowwallet.frigate.index;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.sparrowwallet.drongo.Utils;
import com.sparrowwallet.drongo.protocol.BlockHeader;
import com.sparrowwallet.drongo.protocol.Sha256Hash;
import com.sparrowwallet.frigate.electrum.ElectrumBlockHeader;
import java.math.BigInteger;
@JsonIgnoreProperties(ignoreUnknown = true)
public record VerboseBlockHeader(String hash, int confirmations, int height, int version, String versionHex, String merkleroot, long time, long mediantime, long nonce,
String bits, double difficulty, String chainwork, int nTx, String previousblockhash) {
public ElectrumBlockHeader getBlockHeader() {
BigInteger nBits = new BigInteger(bits, 16);
BlockHeader blockHeader = new BlockHeader(version, previousblockhash == null ? Sha256Hash.ZERO_HASH : Sha256Hash.wrap(previousblockhash), Sha256Hash.wrap(merkleroot), null, time, nBits.longValue(), nonce);
return new ElectrumBlockHeader(height, Utils.bytesToHex(blockHeader.bitcoinSerialize()));
}
}

28
src/main/java/com/sparrowwallet/frigate/index/VsizeFeerate.java Normal file
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package com.sparrowwallet.frigate.index;
import com.sparrowwallet.drongo.protocol.Transaction;
public class VsizeFeerate implements Comparable<VsizeFeerate> {
private final int vsize;
private final float feerate;
public VsizeFeerate(int vsize, double fee) {
this.vsize = vsize;
double feeRate = fee / vsize * Transaction.SATOSHIS_PER_BITCOIN;
//Round down to 0.1 sats/vb precision
this.feerate = (float) (Math.floor(10 * feeRate) / 10);
}
public int getVsize() {
return vsize;
}
public double getFeerate() {
return feerate;
}
@Override
public int compareTo(VsizeFeerate o) {
return Float.compare(o.feerate, feerate);
}
}

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src/main/java/com/sparrowwallet/frigate/io/Config.java Normal file
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package com.sparrowwallet.frigate.io;
import com.google.gson.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.*;
import java.lang.reflect.Type;
public class Config {
private static final Logger log = LoggerFactory.getLogger(Config.class);
public static final String CONFIG_FILENAME = "config";
private Server coreServer;
private CoreAuthType coreAuthType;
private File coreDataDir;
private String coreAuth;
private static Config INSTANCE;
private static Gson getGson() {
GsonBuilder gsonBuilder = new GsonBuilder();
gsonBuilder.registerTypeAdapter(File.class, new FileSerializer());
gsonBuilder.registerTypeAdapter(File.class, new FileDeserializer());
gsonBuilder.registerTypeAdapter(Server.class, new ServerSerializer());
gsonBuilder.registerTypeAdapter(Server.class, new ServerDeserializer());
return gsonBuilder.setPrettyPrinting().disableHtmlEscaping().create();
}
private static File getConfigFile() {
File sparrowDir = Storage.getFrigateDir();
return new File(sparrowDir, CONFIG_FILENAME);
}
private static Config load() {
File configFile = getConfigFile();
if(configFile.exists()) {
try {
Reader reader = new FileReader(configFile);
Config config = getGson().fromJson(reader, Config.class);
reader.close();
if(config != null) {
return config;
}
} catch(Exception e) {
log.error("Error opening " + configFile.getAbsolutePath(), e);
//Ignore and assume no config
}
}
return new Config();
}
public static synchronized Config get() {
if(INSTANCE == null) {
INSTANCE = load();
}
return INSTANCE;
}
public Server getCoreServer() {
return coreServer;
}
public void setCoreServer(Server coreServer) {
this.coreServer = coreServer;
flush();
}
public CoreAuthType getCoreAuthType() {
return coreAuthType;
}
public void setCoreAuthType(CoreAuthType coreAuthType) {
this.coreAuthType = coreAuthType;
flush();
}
public File getCoreDataDir() {
return coreDataDir;
}
public void setCoreDataDir(File coreDataDir) {
this.coreDataDir = coreDataDir;
flush();
}
public String getCoreAuth() {
return coreAuth;
}
public void setCoreAuth(String coreAuth) {
this.coreAuth = coreAuth;
flush();
}
private synchronized void flush() {
Gson gson = getGson();
try {
File configFile = getConfigFile();
if(!configFile.exists()) {
Storage.createOwnerOnlyFile(configFile);
}
Writer writer = new FileWriter(configFile);
gson.toJson(this, writer);
writer.flush();
writer.close();
} catch (IOException e) {
//Ignore
}
}
private static class FileSerializer implements JsonSerializer<File> {
@Override
public JsonElement serialize(File src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src.getAbsolutePath());
}
}
private static class FileDeserializer implements JsonDeserializer<File> {
@Override
public File deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
return new File(json.getAsJsonPrimitive().getAsString());
}
}
private static class ServerSerializer implements JsonSerializer<Server> {
@Override
public JsonElement serialize(Server src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src.toString());
}
}
private static class ServerDeserializer implements JsonDeserializer<Server> {
@Override
public Server deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
return Server.fromString(json.getAsJsonPrimitive().getAsString());
}
}
}

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src/main/java/com/sparrowwallet/frigate/io/CoreAuthType.java Normal file
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package com.sparrowwallet.frigate.io;
public enum CoreAuthType {
COOKIE, USERPASS;
}

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src/main/java/com/sparrowwallet/frigate/io/Protocol.java Normal file
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package com.sparrowwallet.frigate.io;
import com.google.common.net.HostAndPort;
import java.io.File;
import java.io.IOException;
import java.security.KeyManagementException;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.util.Locale;
public enum Protocol {
TCP(50001),
SSL(50002),
HTTP(80),
HTTPS(443);
private final int defaultPort;
Protocol(int defaultPort) {
this.defaultPort = defaultPort;
}
public int getDefaultPort() {
return defaultPort;
}
public HostAndPort getServerHostAndPort(String url) {
String lessProtocol = url.endsWith(":t") || url.endsWith(":s") ? url.substring(0, url.length() - 2) : url.substring(this.toUrlString().length());
int pathStart = lessProtocol.indexOf('/');
return HostAndPort.fromString(pathStart < 0 ? lessProtocol : lessProtocol.substring(0, pathStart));
}
public String toUrlString() {
return toString().toLowerCase(Locale.ROOT) + "://";
}
public String toUrlString(String host) {
return toUrlString(HostAndPort.fromHost(host));
}
public String toUrlString(String host, int port) {
return toUrlString(HostAndPort.fromParts(host, port));
}
public String toUrlString(HostAndPort hostAndPort) {
return toUrlString() + hostAndPort.toString();
}
public static boolean isOnionHost(String host) {
return host != null && host.toLowerCase(Locale.ROOT).endsWith(".onion");
}
public static boolean isOnionAddress(Server server) {
if(server != null) {
return isOnionAddress(server.getHostAndPort());
}
return false;
}
public static boolean isOnionAddress(HostAndPort server) {
return isOnionHost(server.getHost());
}
public static boolean isOnionAddress(String address) {
if(address != null) {
Protocol protocol = Protocol.getProtocol(address);
if(protocol != null) {
return isOnionAddress(protocol.getServerHostAndPort(address));
}
}
return false;
}
public static Protocol getProtocol(String url) {
if(url.startsWith("tcp://") || url.endsWith(":t")) {
return TCP;
}
if(url.startsWith("ssl://") || url.endsWith(":s")) {
return SSL;
}
if(url.startsWith("http://")) {
return HTTP;
}
if(url.startsWith("https://")) {
return HTTPS;
}
return null;
}
public static String getHost(String url) {
Protocol protocol = getProtocol(url);
if(protocol != null) {
return protocol.getServerHostAndPort(url).getHost();
}
return null;
}
}

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src/main/java/com/sparrowwallet/frigate/io/Server.java Normal file
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package com.sparrowwallet.frigate.io;
import com.google.common.net.HostAndPort;
import java.util.Arrays;
public class Server {
private final String url;
private final String alias;
public Server(String url) {
this(url, null);
}
public Server(String url, String alias) {
if(url == null) {
throw new IllegalArgumentException("Url cannot be null");
}
if(url.isEmpty()) {
throw new IllegalArgumentException("Url cannot be empty");
}
if(Protocol.getProtocol(url) == null) {
throw new IllegalArgumentException("Unknown protocol for url " + url + ", must be one of " + Arrays.toString(Protocol.values()));
}
if(Protocol.getHost(url) == null) {
throw new IllegalArgumentException("Cannot determine host for url " + url);
}
if(alias != null && alias.isEmpty()) {
throw new IllegalArgumentException("Server alias cannot be an empty string");
}
this.url = url;
this.alias = alias;
}
public String getUrl() {
return url;
}
public Protocol getProtocol() {
return Protocol.getProtocol(url);
}
public HostAndPort getHostAndPort() {
return getProtocol().getServerHostAndPort(url);
}
public String getHost() {
return getHostAndPort().getHost();
}
public boolean isOnionAddress() {
return Protocol.isOnionAddress(getHostAndPort());
}
public String getAlias() {
return alias;
}
public String getDisplayName() {
return alias == null ? url : alias;
}
public String toString() {
return url + (alias == null ? "" : "|" + alias);
}
public boolean portEquals(String port) {
if(port == null) {
return !getHostAndPort().hasPort();
}
return port.equals(getHostAndPort().hasPort() ? Integer.toString(getHostAndPort().getPort()) : "");
}
public static Server fromString(String server) {
String[] parts = server.split("\\|");
if(parts.length >= 2) {
return new Server(parts[0], parts[1]);
}
return new Server(parts[0], null);
}
@Override
public boolean equals(Object o) {
if(this == o) {
return true;
}
if(o == null || getClass() != o.getClass()) {
return false;
}
Server server = (Server)o;
return url.equals(server.url);
}
@Override
public int hashCode() {
return url.hashCode();
}
}

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src/main/java/com/sparrowwallet/frigate/io/Storage.java Normal file
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package com.sparrowwallet.frigate.io;
import com.sparrowwallet.drongo.Network;
import com.sparrowwallet.drongo.OsType;
import com.sparrowwallet.frigate.Frigate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.attribute.PosixFilePermission;
import java.nio.file.attribute.PosixFilePermissions;
import java.util.EnumSet;
import java.util.Set;
public class Storage {
private static final Logger log = LoggerFactory.getLogger(Storage.class);
public static final String FRIGATE_DIR = ".frigate";
public static final String WINDOWS_FRIGATE_DIR = "Frigate";
public static File getFrigateDir() {
File frigateDir;
Network network = Network.get();
if(network != Network.MAINNET) {
frigateDir = new File(getFrigateHome(), network.getHome());
if(!network.getName().equals(network.getHome()) && !frigateDir.exists()) {
File networkNameDir = new File(getFrigateHome(), network.getName());
if(networkNameDir.exists() && networkNameDir.isDirectory() && !Files.isSymbolicLink(networkNameDir.toPath())) {
try {
if(networkNameDir.renameTo(frigateDir) && !isWindows()) {
Files.createSymbolicLink(networkNameDir.toPath(), Path.of(frigateDir.getName()));
}
} catch(Exception e) {
log.debug("Error creating symlink from " + networkNameDir.getAbsolutePath() + " to " + frigateDir.getName(), e);
}
}
}
} else {
frigateDir = getFrigateHome();
}
if(!frigateDir.exists()) {
createOwnerOnlyDirectory(frigateDir);
}
if(!network.getName().equals(network.getHome()) && !isWindows()) {
try {
Path networkNamePath = getFrigateHome().toPath().resolve(network.getName());
if(Files.isSymbolicLink(networkNamePath)) {
Path symlinkTarget = getFrigateHome().toPath().resolve(Files.readSymbolicLink(networkNamePath));
if(!Files.isSameFile(frigateDir.toPath(), symlinkTarget)) {
Files.delete(networkNamePath);
Files.createSymbolicLink(networkNamePath, Path.of(frigateDir.getName()));
}
} else if(!Files.exists(networkNamePath)) {
Files.createSymbolicLink(networkNamePath, Path.of(frigateDir.getName()));
}
} catch(Exception e) {
log.debug("Error updating symlink from " + network.getName() + " to " + frigateDir.getName(), e);
}
}
return frigateDir;
}
public static File getFrigateHome() {
return getFrigateHome(false);
}
public static File getFrigateHome(boolean useDefault) {
if(!useDefault && System.getProperty(Frigate.APP_HOME_PROPERTY) != null) {
return new File(System.getProperty(Frigate.APP_HOME_PROPERTY));
}
if(isWindows()) {
return new File(getHomeDir(), WINDOWS_FRIGATE_DIR);
}
return new File(getHomeDir(), FRIGATE_DIR);
}
static File getHomeDir() {
if(isWindows()) {
return new File(System.getenv("APPDATA"));
}
return new File(System.getProperty("user.home"));
}
public static boolean createOwnerOnlyDirectory(File directory) {
try {
if(isWindows()) {
Files.createDirectories(directory.toPath());
return true;
}
Files.createDirectories(directory.toPath(), PosixFilePermissions.asFileAttribute(getDirectoryOwnerOnlyPosixFilePermissions()));
return true;
} catch(UnsupportedOperationException e) {
return directory.mkdirs();
} catch(IOException e) {
log.error("Could not create directory " + directory.getAbsolutePath(), e);
}
return false;
}
public static boolean createOwnerOnlyFile(File file) {
try {
if(isWindows()) {
Files.createFile(file.toPath());
return true;
}
Files.createFile(file.toPath(), PosixFilePermissions.asFileAttribute(getFileOwnerOnlyPosixFilePermissions()));
return true;
} catch(UnsupportedOperationException e) {
return false;
} catch(IOException e) {
log.error("Could not create file " + file.getAbsolutePath(), e);
}
return false;
}
private static Set<PosixFilePermission> getDirectoryOwnerOnlyPosixFilePermissions() {
Set<PosixFilePermission> ownerOnly = getFileOwnerOnlyPosixFilePermissions();
ownerOnly.add(PosixFilePermission.OWNER_EXECUTE);
return ownerOnly;
}
private static Set<PosixFilePermission> getFileOwnerOnlyPosixFilePermissions() {
Set<PosixFilePermission> ownerOnly = EnumSet.noneOf(PosixFilePermission.class);
ownerOnly.add(PosixFilePermission.OWNER_READ);
ownerOnly.add(PosixFilePermission.OWNER_WRITE);
return ownerOnly;
}
private static boolean isWindows() {
return OsType.getCurrent() == OsType.WINDOWS;
}
}

15
src/main/java/module-info.java Normal file
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@ -0,0 +1,15 @@
module com.sparrowwallet.frigate {
requires com.sparrowwallet.drongo;
requires com.fasterxml.jackson.annotation;
requires simple.json.rpc.core;
requires simple.json.rpc.client;
requires simple.json.rpc.server;
requires com.google.gson;
requires com.google.common;
requires org.jcommander;
requires org.slf4j;
exports com.sparrowwallet.frigate;
exports com.sparrowwallet.frigate.io;
exports com.sparrowwallet.frigate.index;
opens com.sparrowwallet.frigate.io;
}

27
src/main/resources/logback.xml Normal file
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<configuration>
<statusListener class="ch.qos.logback.core.status.NopStatusListener" />
<logger name="sun.net.www.protocol.http.HttpURLConnection" level="INFO" />
<define name="appDir" class="com.sparrowwallet.drongo.PropertyDefiner">
<application>frigate</application>
</define>
<appender name="FILE" class="ch.qos.logback.core.FileAppender">
<file>${appDir}/frigate.log</file>
<encoder>
<pattern>%date %level [%thread] %logger{10} [%file:%line] %msg%n</pattern>
</encoder>
</appender>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%date %level %msg%n</pattern>
</encoder>
</appender>
<root level="warn">
<appender-ref ref="FILE" />
<appender-ref ref="STDOUT" />
</root>
</configuration>