@webos-tools/cli
Version:
Command Line Interface for development webOS application and service
179 lines (158 loc) • 6.99 kB
JavaScript
/*
* Copyright (c) 2020-2024 LG Electronics Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
const npmlog = require('npmlog'),
errHndl = require('./error-handler'),
Eof = require('../util/eof');
(function() {
const log = npmlog;
log.heading = 'luna';
log.level = 'http';
const luna = {
/**
* send a command on a luna bus
* @property options {novacom.Session} session
* @param {Object} options
* @param {Object} addr
* @property addr {String} service luna service name
* @property addr {String} [folder] containing folder of the requested method
* @property addr {String} method the luna method to invoke
* @param {Object} param the unique luna parameter
* @param {Function} onResponse the callback invoked at each JSON object received from luna-send
* @property onResponse {Object} obj the JSON object received
* @property onResponse {Function} next a common-js callback
* @param next {Function} next a common-js callback
*/
send: function(options, addr, param, onResponse, next) {
const session = options && options.session;
// 'is' is used to transmit an EOF to
// terminate the remote luna-send. this is
// the only way to terminate an interactive
// request 'luna-send -i'...
const is = new Eof(),
url = ['luna:/', addr.service, addr.folder, addr.method].join('/');
let result, mode, sessionCall = "";
is.pause();
if (options && options.nReplies) {
mode = "-n " + options.nReplies + " ";
} else {
mode = "-i ";
}
if (options && options.sessionCall && options.sessionId) {
sessionCall = "-c " + options.sessionId + " ";
}
log.verbose("luna#send()", "calling:", mode + sessionCall + url + " '" + JSON.stringify(param) + "'");
session.run(session.getDevice().lunaSend + " " + mode + sessionCall + url + " '" + JSON.stringify(param) + "'", is /* stdin*/, _onData, process.stderr, function(err) {
if (err) {
next(err);
}
// success when the output of the
// command is correctly interpreted,
// not simply when the command exit
// with a success exit code.
});
let jsonLine = "";
// Break string into lines (JSON.parse needs a
// single object per call).
function _onData(data) {
let str;
if (Buffer.isBuffer(data)) {
str = data.toString();
} else {
str = data;
}
str.split(/\r?\n/).forEach(_onLine);
}
function _onLine(line) {
jsonLine += line;
try {
result = JSON.parse(jsonLine);
log.verbose('luna#send()', 'response:', result);
jsonLine = "";
if (result.returnValue === false) {
is.destroy();
const errValue = (result.errorText ? result.errorText :
(result.errorMessage ? result.errorMessage : ''));
next(errHndl.getErrMsg("FAILED_CALL_LUNA", errValue, null, addr.service));
} else {
onResponse(result, function(err, value) {
log.silly('luna#send()', "err:", err, ", value:", value);
if (err || value) {
log.silly('luna#send()', "closing exec stream");
// processing completed or failed
next(err, value);
}
});
}
} catch(e) {
// ignore the parsing error:
// the line may be incomplete
// & not yet JSON-parseable
}
}
},
sendWithoutErrorHandle: function(options, addr, param, onResponse, next) {
const session = options && options.session;
// 'is' is used to transmit an EOF to
// terminate the remote luna-send. this is
// the only way to terminate an interactive
// request 'luna-send -i'...
const is = new Eof(),
url = ['luna:/', addr.service, addr.folder, addr.method].join('/');
let result, mode;
is.pause();
if (options && options.nReplies) {
mode = "-n " + options.nReplies + " ";
} else {
mode = "-i ";
}
log.verbose("luna#sendWithoutErrorHandle()", "calling:", url + " '" + JSON.stringify(param) + "'");
session.run(session.getDevice().lunaSend + " " + mode + url + " '" + JSON.stringify(param) + "'", is /* stdin*/, _onData, process.stderr, function(err) {
if (err) {
next(err);
}
// success when the output of the
// command is correctly interpreted,
// not simply when the command exit
// with a success exit code.
});
let jsonLine = "";
// Break string into lines (JSON.parse needs a
// single object per call).
function _onData(data) {
let str;
if (Buffer.isBuffer(data)) {
str = data.toString();
} else {
str = data;
}
str.split(/\r?\n/).forEach(_onLine);
}
function _onLine(line) {
jsonLine += line;
try {
result = JSON.parse(jsonLine);
log.verbose('luna#sendWithoutErrorHandle()', 'response:', result);
jsonLine = "";
onResponse(result, function(err, value) {
log.silly('luna#sendWithoutErrorHandle()', "err:", err, ", value:", value);
if (err || value) {
log.silly('luna#sendWithoutErrorHandle()', "closing exec stream");
// processing completed or failed
next(err, value);
}
});
} catch(e) {
// ignore the parsing error:
// the line may be incomplete
// & not yet JSON-parseable
}
}
}
};
if (typeof module !== 'undefined' && module.exports) {
module.exports = luna;
}
}());