103 lines
2.4 KiB
JavaScript
103 lines
2.4 KiB
JavaScript
const smpp = require("smpp");
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function verifyExists(value, err, logger) {
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if (!value) {
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logger.error(err);
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process.exit(0);
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}
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}
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function verifyDefaults(options, definitions) {
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for (const optionDefinition of definitions) {
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if (optionDefinition.defaultOption) {
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if (!options[optionDefinition.name]) {
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options[optionDefinition.name] = optionDefinition.defaultOption;
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}
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}
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}
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}
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function getCharacterSizeForEncoding(pdu) {
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let encoding = pdu.data_coding;
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if (!encoding) {
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encoding = 0;
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}
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let characterSizeBits = 0;
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switch (encoding) {
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case 0:
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characterSizeBits = 7;
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break;
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case 1:
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characterSizeBits = 8;
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break;
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case 8:
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characterSizeBits = 16;
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break;
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}
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return characterSizeBits;
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}
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const maxMessageSizeBits = 1120;
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function splitToParts(pdu) {
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const charSize = getCharacterSizeForEncoding(pdu);
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const maxMessageLength = maxMessageSizeBits / charSize;
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const splitMessage = [];
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const message = pdu.short_message;
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const messageLength = message.length;
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const messageCount = Math.ceil(messageLength / maxMessageLength);
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for (let i = 0; i < messageCount; i++) {
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splitMessage.push(message.substr(i * maxMessageLength, maxMessageLength));
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}
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const pdus = [];
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splitMessage.forEach((messagePart, index) => {
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let udh = Buffer.from([0x05, 0x00, 0x03, this.iterator++, messageCount, index + 1]);
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let partPdu = new smpp.PDU(pdu.command, { ...pdu });
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partPdu.short_message = {
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udh: udh,
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message: messagePart,
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};
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pdus.push(partPdu);
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});
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return pdus;
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}
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// TODO: Add "uselongsms" switch to options;
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async function sendPdu(session, pdu, logger, uselongsms) {
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return new Promise((resolve, reject) => {
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if (uselongsms) {
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const pdus = splitToParts(pdu);
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logger.info(`Sending long sms of ${pdus.length} parts`);
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const total = pdus.length;
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let success = 0;
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let failed = 0;
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for (const pdu of pdus) {
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session.send(pdu, (respPdu) => {
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if (respPdu.command_status === 0) {
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success++;
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if (success + failed === total) {
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resolve(respPdu);
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}
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} else {
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failed++;
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if (success + failed === total) {
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reject(respPdu);
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}
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}
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});
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}
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} else {
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session.send(pdu, (respPdu) => {
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if (respPdu.command_status === 0) {
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resolve(respPdu);
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} else {
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reject(respPdu);
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}
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});
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}
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});
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}
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module.exports = { verifyDefaults, verifyExists, sendPdu, splitToParts, getCharacterSizeForEncoding };
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