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pass psbt and message to hwi on stdin to avoid too long process arguments

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This commit is contained in:
Craig Raw 2022-01-10 12:01:03 +02:00
parent 548b8d270b
commit 7f2d72ee59
1 changed files with 47 additions and 11 deletions
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58
src/main/java/com/sparrowwallet/sparrow/io/Hwi.java
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@ -179,9 +179,9 @@ public class Hwi {
isPromptActive = true;
String output;
if(passphrase != null && !passphrase.isEmpty() && device.getModel().externalPassphraseEntry()) {
output = execute(getDeviceCommand(device, passphrase, Command.SIGN_MESSAGE, message, derivationPath));
output = execute(getDeviceArguments(device, passphrase, Command.SIGN_MESSAGE), Command.SIGN_MESSAGE, message, derivationPath);
} else {
output = execute(getDeviceCommand(device, Command.SIGN_MESSAGE, message, derivationPath));
output = execute(getDeviceArguments(device, Command.SIGN_MESSAGE), Command.SIGN_MESSAGE, message, derivationPath);
}
JsonObject result = JsonParser.parseString(output).getAsJsonObject();
@ -209,9 +209,9 @@ public class Hwi {
isPromptActive = true;
String output;
if(passphrase != null && !passphrase.isEmpty() && device.getModel().externalPassphraseEntry()) {
output = execute(getDeviceCommand(device, passphrase, Command.SIGN_TX, psbtBase64));
output = execute(getDeviceArguments(device, passphrase, Command.SIGN_TX), Command.SIGN_TX, psbtBase64);
} else {
output = execute(getDeviceCommand(device, Command.SIGN_TX, psbtBase64));
output = execute(getDeviceArguments(device, Command.SIGN_TX), Command.SIGN_TX, psbtBase64);
}
JsonObject result = JsonParser.parseString(output).getAsJsonObject();
@ -242,7 +242,31 @@ public class Hwi {
private String execute(List<String> command) throws IOException {
ProcessBuilder processBuilder = new ProcessBuilder(command);
Process process = processBuilder.start();
return CharStreams.toString(new InputStreamReader(process.getInputStream(), StandardCharsets.UTF_8));
try(InputStreamReader reader = new InputStreamReader(process.getInputStream(), StandardCharsets.UTF_8)) {
return CharStreams.toString(reader);
}
}
private String execute(List<String> arguments, Command command, String... commandArguments) throws IOException {
List<String> processArguments = new ArrayList<>(arguments);
processArguments.add("--stdin");
ProcessBuilder processBuilder = new ProcessBuilder(processArguments);
Process process = processBuilder.start();
try(BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(process.getOutputStream(), StandardCharsets.UTF_8))) {
writer.write(command.toString());
for(String commandArgument : commandArguments) {
writer.write(" \"");
writer.write(commandArgument.replace("\\", "\\\\").replace("\"", "\\\""));
writer.write("\"");
}
writer.flush();
}
try(InputStreamReader reader = new InputStreamReader(process.getInputStream(), StandardCharsets.UTF_8)) {
return CharStreams.toString(reader);
}
}
private synchronized File getHwiExecutable(Command command) {
@ -400,30 +424,42 @@ public class Hwi {
return result.get("success").getAsBoolean();
}
private List<String> getDeviceArguments(Device device, Command command) throws IOException {
List<String> elements = new ArrayList<>(List.of(getHwiExecutable(command).getAbsolutePath(), "--device-path", device.getPath(), "--device-type", device.getType()));
addChainType(elements, false);
return elements;
}
private List<String> getDeviceArguments(Device device, String passphrase, Command command) throws IOException {
List<String> elements = new ArrayList<>(List.of(getHwiExecutable(command).getAbsolutePath(), "--device-path", device.getPath(), "--device-type", device.getType(), "--password", escape(passphrase)));
addChainType(elements, false);
return elements;
}
private List<String> getDeviceCommand(Device device, Command command) throws IOException {
List<String> elements = new ArrayList<>(List.of(getHwiExecutable(command).getAbsolutePath(), "--device-path", device.getPath(), "--device-type", device.getType(), command.toString()));
addChainType(elements);
addChainType(elements, true);
return elements;
}
private List<String> getDeviceCommand(Device device, Command command, String... commandData) throws IOException {
List<String> elements = new ArrayList<>(List.of(getHwiExecutable(command).getAbsolutePath(), "--device-path", device.getPath(), "--device-type", device.getType(), command.toString()));
addChainType(elements);
addChainType(elements, true);
elements.addAll(Arrays.stream(commandData).filter(Objects::nonNull).collect(Collectors.toList()));
return elements;
}
private List<String> getDeviceCommand(Device device, String passphrase, Command command, String... commandData) throws IOException {
List<String> elements = new ArrayList<>(List.of(getHwiExecutable(command).getAbsolutePath(), "--device-path", device.getPath(), "--device-type", device.getType(), "--password", escape(passphrase), command.toString()));
addChainType(elements);
addChainType(elements, true);
elements.addAll(Arrays.stream(commandData).filter(Objects::nonNull).collect(Collectors.toList()));
return elements;
}
private void addChainType(List<String> elements) {
private void addChainType(List<String> elements, boolean commandPresent) {
if(Network.get() != Network.MAINNET) {
elements.add(elements.size() - 1, "--chain");
elements.add(elements.size() - 1, getChainName(Network.get()));
elements.add(elements.size() - (commandPresent ? 1 : 0), "--chain");
elements.add(elements.size() - (commandPresent ? 1 : 0), getChainName(Network.get()));
}
}