First commit

framework/server/cacheDisabler.js

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+/*
+
+	Copyright (c) 2020, 2023, The Unified Company.
+
+	This code is part of Unify.
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the ESA Software Community License - Strong Copyleft LICENSE,
+	as published by the ESA.
+	See the ESA Software Community License - Strong Copyleft LICENSE, for more details.
+
+	https://unifyjs.org 
+
+*/
+
+
+export default class cacheDisabler{
+
+	randomString	= String( Math.floor(Math.random() * 1000 )).padStart(4, '0');
+
+	trimParts( parts ) {
+
+		return parts.filter( function( entry ) { return entry.trim() != ''; });
+
+	}
+
+	removePreviousRandomNumber( parts, overrideSplit ) {
+
+		var overrideSplit 	= parts[3].split("?");
+
+
+
+		if( overrideSplit[1] ) {
+
+			// ';
+			if( parts[3].includes(";") ) {
+
+				var lastPart 		= overrideSplit[1].slice( overrideSplit[1].length-2, overrideSplit[1].length );
+
+
+			// '
+			} else {
+
+				var lastPart 		= overrideSplit[1].slice( overrideSplit[1].length-1, overrideSplit[1].length );
+
+			}
+
+			
+			overrideSplit[1] 	= lastPart;
+
+			parts[3] 			= overrideSplit.join("")
+
+
+		}
+
+		return parts;
+
+	}
+
+	injectWithoutSemicolon( parts, index, random, part ) {
+
+		var l				= part.length;
+
+		parts[ index ] 		= part.slice( 0, l - 1 ) + random + part.slice( l - 1, l );
+
+	}
+
+	injectWithSemicolon( parts, index, random, part ) {
+
+		var l				= part.length;
+
+		parts[ index ] 		= part.slice( 0, l - 2 ) + random + part.slice( l - 2, l );
+
+	}
+
+	injectRandomNumber( parts ) {
+
+		var randomString	= "?disableCache=" + this.randomString;
+
+        var urlPartIndex 	= parts.length - 1;
+
+        var urlPart 		= parts[ urlPartIndex ];
+
+		if( urlPart.includes(";") ) {
+
+			this.injectWithSemicolon( parts, urlPartIndex, randomString, urlPart );
+
+		} else {
+
+			this.injectWithoutSemicolon( parts, urlPartIndex, randomString, urlPart );
+
+		}
+
+		return parts;
+
+	}
+
+	parseImportLine( lineWords ) {
+
+		lineWords 				= this.trimParts( lineWords );
+		
+		lineWords				= this.removePreviousRandomNumber( lineWords );
+
+		lineWords				= this.injectRandomNumber( lineWords );
+
+		return lineWords;
+
+	}
+
+	parseLine( lines, i ) {
+
+		var stripped 	= lines[i].replaceAll("\t", " ");
+
+		var parts		= stripped.split(" ");
+
+		if( parts.includes("import") ) {
+
+			parts = this.parseImportLine( parts );
+
+		}
+
+		lines[i] = parts.join(" ");
+
+	}
+
+	parseSource( source, path ) {
+
+		source		= source.replaceAll("\r", "\n");
+
+		var lines 	= source.split("\n");
+
+		for ( var i = 0; i < lines.length; i++ ) {
+
+			this.parseLine( lines, i );
+
+
+		}
+
+		var body = lines.join("\n");
+
+		return body;
+
+	}
+
+}