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192 lines
9.8 KiB
192 lines
9.8 KiB
8 months ago
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var fs = require('fs'),
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jsdom = require('jsdom'),
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PDFDocument = require('pdfkit');
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function createMappingWindow(staticBasepath, callback) {
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jsdom.env({
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html: "<html><head></head><body></body></html>",
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src: [
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// Prepare i18n since we didn't load it from splunk web: hard-code locale data for en_US
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'window._i18n_locale={"exp_symbol":"E","scientific_format":"#E0","percent_format":"#,##0%","date_formats":{"long":{"format":"%(MMMM)s %(d)s, %(y)s","pattern":"MMMM d, y"},"medium":{"format":"%(MMM)s %(d)s, %(y)s","pattern":"MMM d, y"},"short":{"format":"%(M)s/%(d)s/%(yy)s","pattern":"M/d/yy"},"full":{"format":"%(EEEE)s, %(MMMM)s %(d)s, %(y)s","pattern":"EEEE, MMMM d, y"}},"time_formats":{"long":{"format":"%(h)s:%(mm)s:%(ss)s %(a)s %(z)s","pattern":"h:mm:ss a z"},"medium":{"format":"%(h)s:%(mm)s:%(ss)s %(a)s","pattern":"h:mm:ss a"},"short":{"format":"%(h)s:%(mm)s %(a)s","pattern":"h:mm a"},"full":{"format":"%(h)s:%(mm)s:%(ss)s %(a)s %(zzzz)s","pattern":"h:mm:ss a zzzz"}},"quarters":{"format":{"abbreviated":{"1":"Q1","2":"Q2","3":"Q3","4":"Q4"},"narrow":{"1":"1","2":"2","3":"3","4":"4"},"wide":{"1":"1st quarter","2":"2nd quarter","3":"3rd quarter","4":"4th quarter"}},"stand-alone":{"abbreviated":{"1":"Q1","2":"Q2","3":"Q3","4":"Q4"},"narrow":{"1":"1","2":"2","3":"3","4":"4"},"wide":{"1":"1st quarter","2":"2nd quarter","3":"3rd quarter","4":"4th quarter"}}},"group_symbol":",","days":{"format":{"wide":{"0":"Monday","1":"Tuesday","2":"Wednesday","3":"Thursday","4":"Friday","5":"Saturday","6":"Sunday"},"abbreviated":{"0":"Mon","1":"Tue","2":"Wed","3":"Thu","4":"Fri","5":"Sat","6":"Sun"},"narrow":{"0":"M","1":"T","2":"W","3":"T","4":"F","5":"S","6":"S"},"short":{"0":"Mo","1":"Tu","2":"We","3":"Th","4":"Fr","5":"Sa","6":"Su"}},"stand-alone":{"wide":{"0":"Monday","1":"Tuesday","2":"Wednesday","3":"Thursday","4":"Friday","5":"Saturday","6":"Sunday"},"abbreviated":{"0":"Mon","1":"Tue","2":"Wed","3":"Thu","4":"Fri","5":"Sat","6":"Sun"},"narrow":{"0":"M","1":"T","2":"W","3":"T","4":"F","5":"S","6":"S"},"short":{"0":"Mo","1":"Tu","2":"We","3":"Th","4":"Fr","5":"Sa","6":"Su"}}},"decimal_symbol":".","months":{"format":{"abbreviated":{"1":"Jan","2":"Feb","3":"Mar","4":"Apr","5":"May","6":"Jun","7":"Jul","8":"Aug","9":"Sep","10":"Oct","11":"Nov","12":"Dec"},"narrow":{"1":"J","2":"F","3":"M","4":"A","5":"M","6":"J","7":"J","8":"A","9":"S","10":"O","11":"N","12":"D"},"wide":{"1":"January","2":"February","3":"March","4":"April","5":"May","6":"June","7":"July","8":"August","9":"September","10":"October","11":"November","12":"December"}},"stand-alone":{"abbreviated":{"1":"Jan","2":"Feb","3":"Mar","4":"Apr","5":"May","6":"Jun","7":"Jul","8":"Aug","9":"Sep","10":"Oct","11":"Nov","12":"Dec"},"narrow":{"1":"J","2":"F","3":"M","4":"A","5":"M","6":"J","7":"J","8":"A","9":"S","10":"O","11":"N","12":"D"},"wide":{"1":"January","2":"February","3":"March","4":"April","5":"May","6":"June","7":"July","8":"August","9":"September","10":"October","11":"November","12":"December"}}},"minus_sign":"-","min_week_days":1,"first_week_day":6,"periods":{"pm":"PM","evening1":"evening","morning1":"morning","afternoon1":"afternoon","am":"AM","night1":"night","noon":"noon","midnight":"midnight"},"datetime_formats":{"null":"{1} {0}"},"number_format":"#,##0.###","locale_name":"en_US","plus_sign":"+","eras":{"abbreviated":{"0":"BC","1":"AD"},"narrow":{"0":"B","1":"A"},"wide":{"0":"Before Christ","1":"Anno Domini"}}}',
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'window.locale_name = function() { return "en_US"; };',
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'window.locale_uses_day_before_month = function() { return false; };',
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'window.$C = window.$C || {}; window.$C.INDEPENDENT_MODE = false;',
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fs.readFileSync(staticBasepath + "js/i18n.js").toString(),
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fs.readFileSync(staticBasepath + "build/pdf_mapping/index.js").toString()
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],
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done: function(err, window) {
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if (err) {
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callback(err, null);
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return;
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}
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// Set up mock createElementNS
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window.document.createElementNS = function(ns, tagName) {
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var elem = window.document.createElement(tagName);
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elem.getBBox = function() {
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if (this.textContent) {
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var doc = new PDFDocument(),
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fontSize = parseInt(elem.getAttribute("font-size"), 10)
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|| parseInt(window.getComputedStyle(elem, null).getPropertyValue("font-size"), 10),
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font = doc.font('Helvetica', fontSize);
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return ({
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x: elem.offsetLeft,
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y: elem.offsetTop,
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// need to compute max width per line
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width: font.widthOfString(this.textContent),
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// need to compute currentLineHeight()+(numLines-1)*currentLineHeight(true)
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height: font.currentLineHeight() + 4 // offset by 4 to produce results consistent with browser rendering
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});
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}
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return ({
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x: elem.offsetLeft,
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y: elem.offsetTop,
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width: elem.offsetWidth,
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height: elem.offsetHeight
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});
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};
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return elem;
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};
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// Set up mock console logging
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var mockConsole = {
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log: function() {
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mockConsole.addMessage.apply(mockConsole, arguments);
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},
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warn: function() {
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mockConsole.addMessage.apply(mockConsole, arguments);
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},
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debug: function() {
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mockConsole.addMessage.apply(mockConsole, arguments);
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},
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error: function() {
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mockConsole.addMessage.apply(mockConsole, arguments);
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},
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messages: [],
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addMessage: function(args) {
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var i, strSegments = [];
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for (i = 0; i < arguments.length; i++) {
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strSegments.push(arguments[i]);
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}
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mockConsole.messages.push('JSDOM CONSOLE: ' + strSegments.join(' '));
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}
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};
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window.console = mockConsole;
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callback(null, window);
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}
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});
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}
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function prepareColumnData(data) {
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var mapData = {};
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if (data) {
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var fields = data.fields;
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var columns = data.columns;
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if (fields && columns) {
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var numColumns = Math.min(fields.length, columns.length);
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var numRows = (numColumns > 0) ? columns[0].length : 0;
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var obj;
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var i;
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var j;
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for (i = 1; i < numColumns; i++)
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numRows = Math.min(numRows, columns[i].length);
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mapData.fields = filterFields(fields);
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mapData.data = [];
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for (i = 0; i < numRows; i++) {
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obj = {};
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for (j = 0; j < numColumns; j++)
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obj[fields[j]] = columns[j][i];
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mapData.data.push(obj);
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}
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}
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}
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return mapData;
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}
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function filterFields(fields) {
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if (!fields)
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return null;
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var filteredFields = [];
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var field;
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for (var i = 0, l = fields.length; i < l; i++) {
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field = fields[i];
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if (field && (field.charAt(0) !== "_"))
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filteredFields.push(field);
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}
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return filteredFields;
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}
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// Helper method to convert an array in Node to one that will type-check correctly
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// in the jsdom environment. The `Array` constructor is not accessible on the window
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// object so the easiest way to do this is by accessing the version of underscore
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// that's running in jsdom.
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function toDOMArray(a, window) {
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var _ = window.require('underscore');
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return a ? _(a).toArray() : a;
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}
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function getSVG(data, staticBasepath, callback) {
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createMappingWindow(staticBasepath, function(err, window) {
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if (err) {
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callback(err, null);
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return;
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}
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var getConsoleMessages = function() {
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if (window.console.messages && window.console.messages.length > 0) {
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return window.console.messages;
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}
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return null;
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};
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process.on("uncaughtException", function (error) {
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var fullError = {
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consoleMessages: getConsoleMessages(),
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message: error.stack
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};
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callback(fullError, null);
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});
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try {
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var PdfMapRenderer = window.require('splunk/mapping2/PdfMapRenderer');
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var pdfMapRenderer = new PdfMapRenderer();
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var splunkdBasepath = (data.system && data.system.splunkdUri) ? data.system.splunkdUri : "https://localhost:8089/";
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pdfMapRenderer.set('splunkdBasepath', splunkdBasepath);
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pdfMapRenderer.set('staticBasepath', staticBasepath);
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pdfMapRenderer.set('width', parseInt(data.width, 10));
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pdfMapRenderer.set('height', parseInt(data.height, 10));
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pdfMapRenderer.set('props', data.props);
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var mapData = prepareColumnData(data.series);
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mapData.data = toDOMArray(mapData.data, window);
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mapData.fields = toDOMArray(mapData.fields, window);
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pdfMapRenderer.set('mapData', mapData);
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var svg = pdfMapRenderer.getSVG();
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callback({ consoleMessages: getConsoleMessages() }, svg);
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}
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catch(err) {
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window.console.log('exception in splunk_mapping::getSVG' + JSON.stringify(err));
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var fullError = {
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consoleMessages: getConsoleMessages(),
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message: err
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};
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callback(fullError, null);
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}
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});
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}
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exports.getSVG = getSVG;
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