Publish Vulpes Preview 15 sources for desktop, Android and Tundra
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
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assets/webapps/nfc-api-test.gaiamobile.org/js/nfc_tech.js
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assets/webapps/nfc-api-test.gaiamobile.org/js/nfc_tech.js
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var NfcTechDemo = {
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init: function nd_init() {
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dump('NfcTechDemo init');
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var content = document.getElementById('content');
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var errorMsg = document.getElementById('error-message');
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var nfc = window.navigator.mozNfc;
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if (!nfc) {
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errorMsg.textContent = 'NFC API not available.';
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return;
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}
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if (!nfc.enabled) {
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errorMsg.textContent = 'NFC is not enabled.';
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return;
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}
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document.getElementById('isoDep-container').hidden = true;
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document.getElementById('nfcA-container').hidden = true;
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nfc.ontagfound = this.handleTagFound.bind(this);
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nfc.ontaglost = this.handleTagLost.bind(this);
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},
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handleTagFound: function nd_handleTagFound(event) {
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// clear success/error message.
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var errorMsg = document.getElementById('error-message');
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errorMsg.textContent = '';
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var sucMsg = document.getElementById('success-message');
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sucMsg.textContent = '';
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document.getElementById('isoDep-container').hidden = true;
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document.getElementById('nfcA-container').hidden = true;
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var tag = event.tag;
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var tagContainer = document.getElementById('tag-container');
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var techList = tagContainer.querySelector('[data-type="tech-list"]');
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techList.textContent = tag.techList || 'null';
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if (tag.techList.indexOf('ISO-DEP') != -1) {
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this.processIsoDep(tag);
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sucMsg.textContent = 'transceive ISO-DEP succeeds.';
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} else if (tag.techList.indexOf('NFC-A') != -1 && tag.type) {
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this.processNfcA(tag);
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sucMsg.textContent = 'transceive NFCA succeeds.';
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}
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return false;
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},
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handleTagLost: function nd_handleTagLost() {
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},
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processIsoDep: function nd_processIsoDep(tag) {
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var container = document.getElementById('isoDep-container');
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container.hidden = false;
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var isoDep = tag.selectTech('ISO-DEP');
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this.getVersion(isoDep, container).then(
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() => { return this.getKeyInfo(isoDep, container); });
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},
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processNfcA: function nd_processNfcA(tag) {
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document.getElementById('nfcA-container').hidden = false;
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var container;
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var nfcA = tag.selectTech('NFC-A');
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if (tag.type.toLowerCase() === "type2") {
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document.getElementById('type1-container').hidden = true;
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document.getElementById('type2-container').hidden = false;
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container = document.getElementById('type2-container');
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container.querySelector('[data-type="tag-type"]').textContent = tag.type;
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this.write1BlockType2(nfcA, container).
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then(this.read4BlocksType2(nfcA, container));
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} else if (tag.type.toLowerCase() === "type1") {
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document.getElementById('type1-container').hidden = false;
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document.getElementById('type2-container').hidden = true;
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container = document.getElementById('type1-container');
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container.querySelector('[data-type="tag-type"]').textContent = tag.type;
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this.getUIDType1(nfcA, container);
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}
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},
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getVersion: function nd_getVersion(isoDep, container) {
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var ndefHelper = new NDEFHelper();
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return new Promise((resolve, reject) => {
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isoDep.transceive(new Uint8Array([0x90, 0x60, 0x00, 0x00, 0x00])).
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then(response => {
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container.querySelector('[data-type="hw-vendor-id"]').textContent =
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response[0].toString(16);
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container.querySelector('[data-type="hw-type"]').textContent =
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response[1].toString(16) + '.' + response[2].toString(16);
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container.querySelector('[data-type="hw-version"]').textContent =
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response[3].toString(16) + '.' + response[4].toString(16);
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container.querySelector('[data-type="hw-storage"]').textContent =
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1 << (response[5] >> 1);
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container.querySelector('[data-type="hw-protocol"]').textContent =
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response[6].toString(16);
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// Assuming the status code is 0x91, 0xaf,
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// sending 0xaf to get additional info.
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return isoDep.transceive(new Uint8Array([0x90, 0xaf, 0x00, 0x00, 0x00])); }).
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then(response => {
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container.querySelector('[data-type="sw-vendor-id"]').textContent =
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response[0].toString(16);
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container.querySelector('[data-type="sw-type"]').textContent =
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response[1].toString(16) + '.' + response[2].toString(16);
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container.querySelector('[data-type="sw-version"]').textContent =
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response[3].toString(16) + '.' + response[4].toString(16);
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container.querySelector('[data-type="sw-storage"]').textContent =
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1 << (response[5] >> 1);
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container.querySelector('[data-type="sw-protocol"]').textContent =
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response[6].toString(16);
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// Assuming the status code is 0x91, 0xaf,
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// sending 0xaf to get additional info.
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return isoDep.transceive(new Uint8Array([0x90, 0xaf, 0x00, 0x00, 0x00])); }).
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then(response => {
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// Assuming it uses 7 bytes UID, if a random ID is used, it will be of
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// 4 bytes.
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container.querySelector('[data-type="uid"]').textContent =
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ndefHelper.dumpUint8Array(response.subarray(0, 7));
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container.querySelector('[data-type="batch-num"]').textContent =
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ndefHelper.dumpUint8Array(response.subarray(7, 12));
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container.querySelector('[data-type="production-date"]').textContent =
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'Week ' + response[12].toString(16) + '/ 20' + response[13].toString(16);
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resolve();
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});
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});
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},
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getKeyInfo: function nd_getKeyInfo(isoDep, container) {
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return new Promise((resolve, reject) => {
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isoDep.transceive(new Uint8Array([0x90, 0x45, 0x00, 0x00, 0x00])).
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then(response => {
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container.querySelector('[data-type="key-settings"]').textContent =
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response[0].toString(16);
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container.querySelector('[data-type="max-keys"]').textContent =
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response[1].toString(16);
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return isoDep.transceive(new Uint8Array([0x90, 0x64, 0x00, 0x00, 0x01, 0x00, 0x00])); }).
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then(response => {
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container.querySelector('[data-type="key-version"]').textContent =
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response[0].toString(16);
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resolve();
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});
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});
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},
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read4BlocksType2: function nd_read4BlocksType2(nfcA, container) {
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return new Promise((resolve, reject) => {
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var command = new Uint8Array([0x30, 0x05]);
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nfcA.transceive(command).
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then(response => {
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var ndefHelper = new NDEFHelper();
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container.querySelector('[data-type="read"]').textContent =
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ndefHelper.dumpUint8Array(response);
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resolve();
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});
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});
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},
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write1BlockType2: function nd_write1BlockType2(nfcA, container) {
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return new Promise((resolve, reject) => {
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var command = new Uint8Array([0xA2, 0x05, 0x01, 0x02, 0x03, 0x04]);
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nfcA.transceive(command).
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then(response => {
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var ndefHelper = new NDEFHelper();
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container.querySelector('[data-type="write"]').textContent =
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ndefHelper.dumpUint8Array(command.subarray(2,6));
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resolve();
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});
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});
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},
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getUIDType1: function nd_getUIDType1(nfcA, container) {
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return new Promise((resolve, reject) => {
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var command = new Uint8Array([0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]);
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nfcA.transceive(command).
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then(response => {
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container.querySelector('[data-type="hr0"]').textContent =
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response[0].toString(16);
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container.querySelector('[data-type="hr1"]').textContent =
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response[1].toString(16);
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container.querySelector('[data-type="uid0"]').textContent =
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response[2].toString(16);
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container.querySelector('[data-type="uid1"]').textContent =
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response[3].toString(16);
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container.querySelector('[data-type="uid2"]').textContent =
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response[4].toString(16);
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container.querySelector('[data-type="uid3"]').textContent =
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response[5].toString(16);
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resolve();
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});
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});
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},
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};
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window.addEventListener('load', () => NfcTechDemo.init());
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