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javascript obfuscator
git-svn-id: https://webim.svn.sourceforge.net/svnroot/webim/trunk@31 c66351dc-e62f-0410-b875-e3a5c0b9693f
This commit is contained in:
Evgeny Gryaznov
parent
a24878aacb
commit
0f3fe25110
731
src/obfuscator/JSO.java
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731
src/obfuscator/JSO.java
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@ -0,0 +1,731 @@
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/*
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* JavaScript Obfucator is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* JavaScript Obfucator is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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import java.util.*;
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import java.io.*;
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/**
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* Obfuscate the JavaScript code.
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* updated by Evgeny Gryaznov, March 2006
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* @author Shane Ng <gnenahs at poboxes dot com>
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*/
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public class JSO {
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public static final String[] reserved = {
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"abstract", "else", "instanceof", "switch", "boolean", "enum", "int",
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"synchronized", "break", "export", "interface", "this", "byte", "extends",
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"long", "throw", "case", "false", "native", "throws", "catch", "final",
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"new", "transient", "char", "finally", "null", "true", "class", "float",
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"package", "try", "const", "for", "private", "typeof", "continue", "function",
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"protected", "var", "debugger", "goto", "public", "void", "default", "if",
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"return", "volatile", "delete", "implements", "short", "while", "do", "import",
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"static", "with", "double", "in", "super", "undefined", "arguments"
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};
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public static final String[] builtIn = {
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"history", "packages", "pageXOffset", "pageYOffset", "isNaN", "array", "java",
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"plugin", "clientInformation", "prototype", "layer", "layers", "crypto", "date", "secure",
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"embed", "navigator", "product", "netscape", "escape", "eval", "sun",
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"taint", "fileUpload", "toString", "unescape", "untaint", "frameRate",
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"valueOf", "getClass", "encodeURIComponent", "overrideMimeType",
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// Types
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"Math", "Date", "Array", "RegExp", "Image", "Function", "ActiveXObject",
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"Number", "String", "Object", "JavaClass", "JavaObject", "JavaPackage", "JavaArray",
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// DOM
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"anchor", "image", "area", "checkbox", "password", "radio", "textarea",
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"contentDocument", "contentWindow", "document",
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"window", "element", "location", "option", "style",
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// Properties
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"accessKey", "action", "activeElement", "align", "aLink", "aLinkColor", "alt",
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"altHTML", "altKey", "appCodeName", "appMinorVersion", "appName", "appVersion",
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"autocomplete", "availHeight", "availWidth", "background", "backgroundAttachment",
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"backgroundColor", "backgroundImage", "backgroundPosition", "backgroundPositionX",
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"backgroundPositionY", "backgroundRepeat", "balance", "behavior", "bgColor",
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"bgProperties", "border", "borderBottom", "borderBottomColor", "borderBottomStyle",
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"borderBottomWidth", "borderCollapse", "borderColor", "borderColorDark",
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"borderColorLight", "borderLeft", "borderLeftColor", "borderLeftStyle",
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"borderLeftWidth", "borderRight", "borderRightColor", "borderRightStyle",
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"borderRightWidth", "borderStyle", "borderTop", "borderTopColor", "borderTopStyle",
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"borderTopWidth", "borderWidth", "bottom", "bottomMargin", "boundingHeight", "boundingLeft",
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"boundingTop", "boundingWidth", "browserLanguage", "bufferDepth", "button",
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"cancelBubble", "canHaveChildren", "caption", "cellIndex", "cellPadding", "cellSpacing",
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"checked", "classid", "className", "clear", "clientHeight", "clientLeft", "clientTop",
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"clientWidth", "clientX", "clientY", "clip", "clipBottom", "clipLeft", "clipRight",
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"clipTop", "closed", "code", "codeBase", "codeType", "color", "colorDepth", "cols",
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"colSpan", "compact", "complete", "content", "cookie", "cookieEnabled", "coords",
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"cpuClass", "cssText", "ctrlKey", "cursor", "data", "dataFld", "dataFormatAs",
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"dataPageSize", "dataSrc", "defaultCharset", "defaultChecked", "defaultSelected",
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"defaultStatus", "defaultValue", "defer", "designMode", "dialogArguments", "dialogHeight",
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"dialogLeft", "dialogTop", "dialogWidth", "dir", "direction", "disabled", "display",
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"documentElement", "domain", "dropEffect", "dynsrc", "effectAllowed", "encoding", "event",
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"expando", "face", "fgColor", "fileCreatedDate", "fileModifiedDate", "fileSize",
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"fileUpdatedDate", "filter", "firstChild", "font", "fontFamily", "fontSize",
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"fontSmoothingEnabled", "fontStyle", "fontVariant", "fontWeight", "form", "frame",
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"frameBorder", "frameSpacing", "fromElement", "hash", "height", "hidden", "host",
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"hostname", "href", "hspace", "htmlFor", "htmlText", "httpEquiv", "id", "imeMode",
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"indeterminate", "index", "innerHTML", "innerText", "isMap", "isTextEdit", "keyCode",
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"lang", "language", "lastChild", "lastModified", "layoutGrid", "layoutGridChar",
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"layoutGridCharSpacing", "layoutGridLine", "layoutGridMode", "layoutGridType", "left",
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"leftMargin", "length", "letterSpacing", "lineBreak", "lineHeight", "link", "linkColor",
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"listStyle", "listStyleImage", "listStylePosition", "listStyleType", "loop", "lowsrc",
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"margin", "marginBottom", "marginHeight", "marginLeft", "marginRight", "marginTop",
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"marginWidth", "maxLength", "media", "menuArguments", "method", "Methods", "multiple",
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"name", "nameProp", "nextSibling", "nodeName", "nodeType", "nodeValue", "noHref",
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"noResize", "noShade", "noWrap", "object", "offscreenBuffering", "offsetHeight",
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"offsetLeft", "offsetParent", "offsetTop", "offsetWidth", "offsetX", "offsetY",
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"onLine", "opener", "outerHTML", "outerText", "overflow", "overflowX", "overflowY",
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"owningElement", "padding", "paddingBottom", "paddingLeft", "paddingRight", "paddingTop",
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"pageBreakAfter", "pageBreakBefore", "palette", "parent", "parentElement", "parentNode",
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"parentStyleSheet", "parentTextEdit", "parentWindow", "pathname", "pixelBottom",
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"pixelHeight", "pixelLeft", "pixelRight", "pixelTop", "pixelWidth", "platform",
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"pluginspage", "port", "posBottom", "posHeight", "position", "posLeft", "posRight",
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"posTop", "posWidth", "previousSibling", "propertyName", "protocol", "qualifier",
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"readOnly", "reason", "recordNumber", "recordset", "referrer", "rel",
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"repeat", "returnValue", "rev", "right", "rightMargin", "rowIndex", "rowSpan",
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"rubyAlign", "rubyOverhang", "rubyPosition", "scopeName", "screenLeft",
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"screenTop", "screenX", "screenY", "scrollAmount", "scrollDelay",
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"scrollHeight", "scrolling", "scrollLeft", "scrollTop", "scrollWidth", "search",
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"sectionRowIndex", "selected", "selectedIndex", "selectorText", "self", "shape",
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"shiftKey", "size", "sourceIndex", "span", "specified", "src", "srcElement", "srcFilter",
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"srcUrn", "start", "status", "styleFloat", "systemLanguage", "tabIndex", "tableLayout",
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"tagName", "tagUrn", "target", "text", "textAlign", "textAutospace", "textDecoration",
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"textDecorationLineThrough", "textDecorationNone", "textDecorationOverline",
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"textDecorationUnderline", "textIndent", "textJustify", "textTransform", "tFoot", "tHead",
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"title", "toElement", "top", "topMargin", "trueSpeed", "type", "unicodeBidi", "uniqueID",
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"units", "updateInterval", "URL", "urn", "useMap", "userAgent", "userLanguage", "vAlign",
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"value", "vcard_name", "verticalAlign", "visibility", "vLink", "vlinkColor", "volume",
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"vspace", "whiteSpace", "width", "wordBreak", "wordSpacing", "wrap", "x",
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"XMLDocument", "y", "zIndex",
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// non-IE
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"outerHeight", "innerHeight", "outerWidth", "innerWidth",
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"which",
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// collections
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"all", "anchors", "applets", "areas", "attributes", "behaviorUrns",
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"bookmarks", "boundElements", "cells", "childNodes", "children",
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"controlRange", "elements", "embeds", "filters", "forms", "frames",
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"images", "imports", "links", "mimeTypes", "options", "plugins", "rows",
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"rules", "scripts", "styleSheets", "tBodies", "TextRectangle",
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// Methods
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"add", "addBehavior", "AddFavorite", "addImport", "addRule", "alert",
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"appendChild", "applyElement", "assign", "attachEvent", "back", "blur",
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"clearAttributes", "clearData", "clearInterval", "clearRequest",
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"clearTimeout", "click", "cloneNode", "close", "collapse", "compareEndPoints",
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"componentFromPoint", "confirm", "contains", "createCaption", "createControlRange",
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"createElement", "createRange", "createStyleSheet", "createTextNode", "createTextRange",
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"createTFoot", "createTHead", "deleteCaption", "deleteCell", "deleteRow", "deleteTFoot",
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"deleteTHead", "detachEvent", "doScroll", "duplicate", "elementFromPoint",
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"empty", "execCommand", "execScript", "expand", "findText", "firstPage", "focus",
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"forward", "getAdjacentText", "getAttribute", "getBookmark", "getBoundingClientRect",
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"getClientRects", "getData", "getElementById", "getElementsByName", "getElementsByTagName",
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"getExpression", "go", "hasChildNodes", "inRange",
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"insertAdjacentElement", "insertAdjacentHTML", "insertAdjacentText", "insertBefore",
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"insertCell", "insertRow", "isEqual", "IsSubscribed", "item", "javaEnabled", "lastPage",
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"mergeAttributes", "move", "moveBy", "moveEnd", "moveRow", "moveStart", "moveTo",
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"moveToBookmark", "moveToElementText", "moveToPoint", "namedRecordset", "navigate",
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"NavigateAndFind", "nextPage", "open", "pasteHTML",
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"previousPage", "print", "prompt", "queryCommandEnabled", "queryCommandIndeterm",
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"queryCommandState", "queryCommandSupported", "queryCommandValue", "recalc", "refresh",
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"releaseCapture", "reload", "remove", "removeAttribute", "removeBehavior",
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"removeChild", "removeExpression", "removeNode", "removeRule", "replace",
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"replaceAdjacentText", "replaceChild", "replaceNode", "reset", "resizeBy",
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"resizeTo", "scroll", "scrollBy", "scrollIntoView", "scrollTo", "select",
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"setAttribute", "setCapture", "setData", "setEndPoint", "setExpression", "setInterval",
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"setTimeout", "ShowBrowserUI", "showHelp", "showModalDialog", "showModelessDialog",
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"splitText", "stop", "submit", "swapNode", "tags", "taintEnabled",
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"urns", "write", "writeln",
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// builtIn
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"toUpperCase", "toLowerCase", "match", "substring", "split", "indexOf",
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"parseFloat", "parseInt",
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"getYear", "getTime", "getMonth", "getFullYear", "getDay", "getDate",
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"exec", "join", "call", "floor",
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// events
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"onabort", "onafterprint", "onafterupdate", "onbeforecopy", "onbeforecut",
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"onbeforeeditfocus", "onbeforepaste", "onbeforeprint", "onbeforeunload",
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"onbeforeupdate", "onblur", "onbounce", "oncellchange", "onchange", "onclick",
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"oncontextmenu", "oncopy", "oncut", "ondataavailable", "ondatasetchanged", "ondatasetcomplete",
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"ondblclick", "ondrag", "ondragend", "ondragenter", "ondragleave", "ondragover",
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"ondragstart", "ondrop", "onerror", "onerrorupdate", "onfilterchange", "onfinish",
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"onfocus", "onhelp", "onkeydown", "onkeypress", "onkeyup", "onload",
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"onlosecapture", "onmousedown", "onmousemove", "onmouseout", "onmouseover", "onmouseup",
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"onpaste", "onpropertychange", "onreset", "onresize", "onrowenter",
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"onrowexit", "onrowsdelete", "onrowsinserted", "onscroll", "onselect", "onselectstart",
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"onstart", "onstop", "onsubmit", "onunload",
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// Ajax
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"XMLHttpRequest", "readyState", "onreadystatechange", "responseXML",
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"responseText", "responseBody", "statusText",
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"send", "abort", "setRequestHeader", "getResponseHeader", "getAllResponseHeaders",
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};
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public static final char[] DELIMITER = {'?', ':', '!', '=', '(', ')', '[', ']',
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'{', '}', '\r', '\n', '\t', ' ', '\"', '\'', '<', '>', ',', '.', '/',
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'\\', '+', '-', '*', '&', '|', '^', '%', ';'
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};
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public static final String[] alpha = {
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"m", "n", "q", "r", "s", "t", "u",
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"h", "i", "j", "k", "l", "o", "p",
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"d", "e", "f", "g", "a", "b", "c",
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"v", "w", "x", "y", "z", "$", "_"
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};
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public static final HashSet exclusionTokenSet = new HashSet();
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public static final HashSet forceReplace = new HashSet();
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public static final HashSet forceReplaceInStrings = new HashSet();
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public static final HashMap forceTextualReplace = new HashMap();
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public static int ref = alpha.length;
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public static HashMap map = new HashMap();
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public static final String ARG_EXCLUDE_TOKENS = "e=";
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public static final String ARG_DESTINATION_DIR = "d=";
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public static final String ARG_OBFUSCATE_STRING = "o=";
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public static final String ARG_DEBUG = "debug";
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public static final String ARG_DEBUGEXCLUDE = "debugnames";
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public static final String ARG_REPLACE = "textrepl=";
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private double[] stringObfuscationParameter = {0, 0, 0.5};
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private String[] file = null;
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public static boolean isDebug = false;
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public static boolean isExcludeAll = false;
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private String destinationDir = null;
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private JSOState state = new JSOState();
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private String delimiter = new String(DELIMITER);
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private HashSet encounteredInStrings = new HashSet();
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private HashMap encounteredInStringsFiles = new HashMap();
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public static void main(String[] args) throws Exception {
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ArrayList fileList = new ArrayList(args.length);
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String[] file = null;
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String destinationDir = null;
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double[] stringObfuscationParameter = {1, .59, 0.5};
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if (args.length == 0) {
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printUsage();
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return;
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} else if (args.length > 1) {
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for (int i = 0; i < args.length; i++) {
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if( args[i].equals(ARG_DEBUG)) {
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isDebug = true;
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} else if( args[i].equals(ARG_DEBUGEXCLUDE) ) {
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isExcludeAll = true;
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} else if (args[i].startsWith(ARG_EXCLUDE_TOKENS)) {
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readexclusionTokenSet(args[i].substring(ARG_EXCLUDE_TOKENS.length()));
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} else if (args[i].startsWith(ARG_DESTINATION_DIR) && destinationDir == null) {
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File dir = new File(args[i].substring(ARG_DESTINATION_DIR.length()));
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if (!dir.exists() && !dir.mkdirs()) {
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System.err.println("Cannot create the output directory \"" + dir.getName() + "\"");
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return;
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} else if (dir.exists() && dir.isFile()) {
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System.err.println("The output parameter \"" + args[i] + "\" is not a directory");
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return;
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}
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destinationDir = dir.getAbsolutePath();
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} else if (args[i].startsWith(ARG_OBFUSCATE_STRING)) {
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String[] param = args[i].substring(ARG_OBFUSCATE_STRING.length()).split(",", 3);
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if (param.length >= 2) {
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try {
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stringObfuscationParameter[0] = Double.parseDouble(param[0]);
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stringObfuscationParameter[1] = Double.parseDouble(param[1]);
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if (param.length == 3) {
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stringObfuscationParameter[2] = Double.parseDouble(param[2]);
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}
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} catch (NumberFormatException e) {
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System.err.println("The obfuscation parameters are not numbers.");
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return;
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}
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} else {
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System.err.println("At least 2 obfuscation parameters are required, e.g. o=0.4,0.7.");
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return;
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}
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} else if( args[i].startsWith(ARG_REPLACE) ) {
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String[] param = args[i].substring(ARG_REPLACE.length()).split(",", 3);
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if (param.length == 2) {
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forceTextualReplace.put(param[0], param[1]);
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} else {
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System.err.println("2 parameters are required, e.g. textrepl=a,b");
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return;
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}
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} else {
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fileList.add(args[i]);
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}
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}
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file = new String[fileList.size()];
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fileList.toArray(file);
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} else {
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file = new String[]{args[0]};
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}
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addexclusionTokenSet(reserved);
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addexclusionTokenSet(builtIn);
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JSO obfuscator = new JSO(file, destinationDir, stringObfuscationParameter);
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obfuscator.run();
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}
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private static void printUsage() {
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System.err.println("Usage: java JSO <list of javascript file> [options]");
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System.err.println("");
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System.err.println("where the options are:");
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System.err.println("\te=<exception list file>");
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System.err.println("\t\t- filename of the exception list");
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System.err.println("\t\t- exception tokens are delimited by tab, space, dot, comma, ");
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System.err.println("\t\t single quote and double quote");
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System.err.println("\td=<destination directory>");
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System.err.println("\t\t- the output directory");
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System.err.println("\t\t- print to the STDOUT if not specified");
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System.err.println("\to=<obfuscation parameters of string literals>");
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System.err.println("\t\t- If it is specified, the characters in string literals will be ");
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System.err.println("\t\t encoded to either \\uXXXX (hexidemcial) or \\XXX (octal) format");
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System.err.println("\t\t- The parameters are a 2 or 3 floating point values delimited ");
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System.err.println(" by commas. e.g. 0.5,0.3 or 0.5,0.3,0.9");
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System.err.println("\t\t- The values are ");
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System.err.println("\t\t * probability to encode a string");
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System.err.println("\t\t * probability to encode a character in a candidate string");
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||||
System.err.println("\t\t * probability to encode a character into \\uXXXX format");
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System.err.println("\t\t- The last parameter is set to 0.5 if not specified");
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System.err.println("");
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||||
System.err.println("Press Enter to read the examples...");
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try{
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System.in.read();
|
||||
} catch (Exception e){}
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System.err.println("Examples:");
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||||
System.err.println("");
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||||
System.err.println(" Obfuscate all scripts in the current directory and output to ./out directory:");
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System.err.println("\tjava JSO *.js d=out");
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System.err.println("");
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System.err.println(" Pipe the STDOUT output to x.o.js:");
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||||
System.err.println("\tjava JSO x.js > x.o.js ");
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||||
System.err.println("");
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||||
System.err.println(" Merge a.js and b.js and pipe the merged output to script.js. Tokens in ");
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||||
System.err.println(" exception list, noReplace.txt will not be replaced:");
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System.err.println("\tjava JSO a.js b.js e=noReplace.txt > script.js");
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||||
System.err.println("");
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||||
System.err.println(" Obfuscate the 100% of string literals, 68% of the characters will be encoded. ");
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||||
System.err.println(" 50% of the characters will be encoded as \\uXXXX format (default):");
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||||
System.err.println("\tjava JSO x.js o=1,0.68");
|
||||
}
|
||||
|
||||
public JSO(String[] file, String destinationDir, double[] stringObfuscationParameter){
|
||||
this.file = file;
|
||||
this.destinationDir = destinationDir;
|
||||
if (stringObfuscationParameter != null && stringObfuscationParameter.length >= 2) {
|
||||
this.stringObfuscationParameter = stringObfuscationParameter;
|
||||
}
|
||||
}
|
||||
|
||||
public void run() throws IOException {
|
||||
for (int i = 0; i < file.length; i++) {
|
||||
BufferedReader in = new BufferedReader(new FileReader(file[i]));
|
||||
PrintWriter out = null;
|
||||
File f = new File(file[i]);
|
||||
|
||||
if (destinationDir == null) {
|
||||
out = new PrintWriter(System.out, true);
|
||||
} else {
|
||||
out = new PrintWriter(new FileWriter(new File(destinationDir + File.separator + f.getName())));
|
||||
}
|
||||
|
||||
this.obfuscate(in, out, f.getName());
|
||||
System.out.println("obfuscated " + f.getName());
|
||||
|
||||
in.close();
|
||||
out.flush();
|
||||
out.close();
|
||||
}
|
||||
|
||||
|
||||
System.err.println( "Obfuscated" );
|
||||
System.err.println(map.toString().replace(',', '\n'));
|
||||
|
||||
encounteredInStrings.retainAll(map.keySet());
|
||||
System.err.println( "Not Obfuscated in strings:" );
|
||||
for( Iterator it = encounteredInStrings.iterator(); it.hasNext(); ) {
|
||||
String s = (String)it.next();
|
||||
System.err.println( "\t"+s+": " + (String)encounteredInStringsFiles.get(s) );
|
||||
}
|
||||
}
|
||||
|
||||
private void obfuscate(BufferedReader in, PrintWriter out, String fname) throws IOException {
|
||||
state.reset();
|
||||
|
||||
int line_counter = 0;
|
||||
for (String line = in.readLine(); line != null; line = in.readLine()) {
|
||||
line_counter++;
|
||||
if( !isDebug )
|
||||
line = line.trim();
|
||||
if (line.length() == 0) {
|
||||
if( isDebug )
|
||||
out.println();
|
||||
continue;
|
||||
}
|
||||
if( line.startsWith( "//-" ) ) {
|
||||
String[] toAdd = line.substring(3).split(",");
|
||||
for( int i = 0; i < toAdd.length; i++ )
|
||||
exclusionTokenSet.add(toAdd[i].trim());
|
||||
continue;
|
||||
} else if( line.startsWith("//+")) {
|
||||
String[] toAdd = line.substring(3).split(",");
|
||||
for( int i = 0; i < toAdd.length; i++ )
|
||||
forceReplace.add(toAdd[i].trim());
|
||||
continue;
|
||||
} else if( line.startsWith("//'")) {
|
||||
String[] toAdd = line.substring(3).split(",");
|
||||
for( int i = 0; i < toAdd.length; i++ ) {
|
||||
forceReplace.add(toAdd[i].trim());
|
||||
forceReplaceInStrings.add(toAdd[i].trim());
|
||||
}
|
||||
}
|
||||
|
||||
for( Iterator it = forceTextualReplace.keySet().iterator(); it.hasNext(); ) {
|
||||
String key = (String)it.next();
|
||||
line = line.replaceAll(key, (String)forceTextualReplace.get(key));
|
||||
}
|
||||
|
||||
StringTokenizer st = new StringTokenizer(line, delimiter, true);
|
||||
|
||||
if (st.hasMoreTokens()) {
|
||||
state.setToken(st.nextToken());
|
||||
}
|
||||
|
||||
for (; state.token != null; state.skipToken()) {
|
||||
if (st.hasMoreTokens()) {
|
||||
state.setNextToken(st.nextToken());
|
||||
} else {
|
||||
state.noToken();
|
||||
}
|
||||
|
||||
boolean doubleSlashed = state.flipFlags();
|
||||
if (doubleSlashed) {
|
||||
break;
|
||||
}
|
||||
|
||||
handleToken(out, fname, line_counter);
|
||||
}
|
||||
|
||||
if( isDebug )
|
||||
out.println();
|
||||
else if (!state.delimiter && !state.commented )
|
||||
out.print(" ");
|
||||
}
|
||||
}
|
||||
|
||||
private void handleToken(PrintWriter out, String fname, int line ) {
|
||||
if (state.token.length() > 0) {
|
||||
if (state.delimiter) {
|
||||
if (state.inString() && !state.backslashed && state.c != '\\' &&
|
||||
state.c != '\"' && state.c != '\'') {
|
||||
state.token = obfuscateQuotedString(state.token);
|
||||
}
|
||||
} else {
|
||||
if (state.inString()) {
|
||||
if( forceReplaceInStrings.contains(state.token) && canReplace(state.token) ) {
|
||||
state.token = generateToken(state.token);
|
||||
} else if( Character.isJavaIdentifierStart(state.token.charAt(0))) {
|
||||
encounteredInStrings.add(state.token);
|
||||
String s = (String)encounteredInStringsFiles.get(state.token);
|
||||
s = ( s == null ) ? "" : s + ", ";
|
||||
s += fname +"[" + line + "]";
|
||||
encounteredInStringsFiles.put(state.token, s);
|
||||
}
|
||||
if (!state.backslashed) {
|
||||
state.token = obfuscateQuotedString(state.token);
|
||||
}
|
||||
} else if( !state.commented ) {
|
||||
if(canReplace(state.token)){
|
||||
state.token = generateToken(state.token);
|
||||
} else if( state.token.length() > 0 && Character.isDigit( state.token.charAt(0) ) ) {
|
||||
try {
|
||||
int i = Integer.parseInt( state.token );
|
||||
double res = Math.random();
|
||||
int e = (int)(i * res);
|
||||
|
||||
if( i > 3 ) {
|
||||
if( res < 0.2 && i >= 16 )
|
||||
state.token = "0x"+Integer.toHexString(i);
|
||||
else if( res < 0.6 && i >= 8 )
|
||||
state.token = "0" + Integer.toOctalString(i);
|
||||
else
|
||||
state.token = "(" + e + "+" + (i-e) + ")";
|
||||
}
|
||||
|
||||
} catch( NumberFormatException ex ) {
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (!state.commented && (state.printToken || state.inString())) {
|
||||
out.print(state.token);
|
||||
}
|
||||
|
||||
if (state.c == '}' && !state.commented && !isDebug) {
|
||||
out.print(" ");
|
||||
}
|
||||
}
|
||||
|
||||
private static void readexclusionTokenSet(String file) throws IOException {
|
||||
BufferedReader in = null;
|
||||
try {
|
||||
in = new BufferedReader(new FileReader(file));
|
||||
for (String line = in.readLine(); line != null; line = in.readLine()) {
|
||||
StringTokenizer st = new StringTokenizer(line, "\t ,.\"\'");
|
||||
for (; st.hasMoreTokens();) {
|
||||
exclusionTokenSet.add(st.nextToken());
|
||||
}
|
||||
}
|
||||
} finally {
|
||||
if (in != null) {
|
||||
in.close();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private String obfuscateQuotedString(String token) {
|
||||
if (Math.random() < stringObfuscationParameter[0]) {
|
||||
StringBuffer buffer = new StringBuffer(token.length());
|
||||
int n = token.length();
|
||||
int pos = 0;
|
||||
for (int i = 0; i < n; i++) {
|
||||
if (Math.random() < stringObfuscationParameter[1]) {
|
||||
buffer.append(token.substring(pos, i));
|
||||
encode(token.charAt(i), buffer);
|
||||
pos = i + 1;
|
||||
}
|
||||
}
|
||||
if (pos < n) {
|
||||
buffer.append(token.substring(pos));
|
||||
}
|
||||
return buffer.toString();
|
||||
} else {
|
||||
return token;
|
||||
}
|
||||
}
|
||||
|
||||
private void encode(char c, StringBuffer buffer) {
|
||||
if (Math.random() < stringObfuscationParameter[2] || c > 0777) {
|
||||
buffer.append("\\u");
|
||||
encode(c, 16, 4, buffer);
|
||||
} else {
|
||||
buffer.append("\\");
|
||||
encode(c, 8, 3, buffer);
|
||||
}
|
||||
}
|
||||
|
||||
private void encode(char c, int radix, int length, StringBuffer buffer) {
|
||||
String value = Integer.toString(c, radix);
|
||||
int n = length - value.length();
|
||||
|
||||
if (n > 0) {
|
||||
for (int i = 0; i < n; i++) {
|
||||
buffer.append('0');
|
||||
}
|
||||
buffer.append(value);
|
||||
} else {
|
||||
buffer.append(value.substring(-n));
|
||||
}
|
||||
}
|
||||
|
||||
private static String generateToken(String token) {
|
||||
if (map.containsKey(token)) {
|
||||
return (String) map.get(token);
|
||||
} else {
|
||||
String result = null;
|
||||
do {
|
||||
StringBuffer buffer = new StringBuffer(token.length());
|
||||
for (int i = ref; i > 0; i = i / alpha.length) {
|
||||
buffer.append(alpha[i % alpha.length]);
|
||||
}
|
||||
|
||||
ref++;
|
||||
result = buffer.toString();
|
||||
} while (exclusionTokenSet.contains(result) || map.containsValue(result));
|
||||
|
||||
map.put(token, result);
|
||||
return result;
|
||||
}
|
||||
}
|
||||
|
||||
private static boolean canReplace(String token) {
|
||||
if (token.length() <= 1 || token.charAt(0) == '$' )
|
||||
return false;
|
||||
if (map.containsKey(token))
|
||||
return true;
|
||||
if( isExcludeAll )
|
||||
return false;
|
||||
if( forceReplace.contains(token) )
|
||||
return true;
|
||||
if (exclusionTokenSet.contains(token) )
|
||||
return false;
|
||||
if (Character.isDigit(token.charAt(0)))
|
||||
return false;
|
||||
if( token.charAt(0) == '_' )
|
||||
return true;
|
||||
return true;
|
||||
}
|
||||
|
||||
private static void addexclusionTokenSet(String[] array) {
|
||||
if (array != null) {
|
||||
for (int i = 0; i < array.length; i++) {
|
||||
if( exclusionTokenSet.contains(array[i]) )
|
||||
System.err.println( "warn, already excluded: " + array[i] );
|
||||
exclusionTokenSet.add(array[i]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public static boolean isDelimiter(String token) {
|
||||
if (token != null && token.length() > 0) {
|
||||
for (int i = 0; i < DELIMITER.length; i++) {
|
||||
if (token.charAt(0) == DELIMITER[i]) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
class JSOState {
|
||||
boolean dotted = false;
|
||||
boolean doubleQuoted = false;
|
||||
boolean singleQuoted = false;
|
||||
boolean backslashed = false;
|
||||
boolean commented = false;
|
||||
boolean printToken = true;
|
||||
boolean delimiter = false;
|
||||
|
||||
String token;
|
||||
String lastToken;
|
||||
String nextToken;
|
||||
|
||||
char c0 = 0;
|
||||
char c = 0;
|
||||
char c2 = 0;
|
||||
|
||||
void reset() {
|
||||
dotted = false;
|
||||
doubleQuoted = false;
|
||||
singleQuoted = false;
|
||||
backslashed = false;
|
||||
commented = false;
|
||||
printToken = true;
|
||||
delimiter = false;
|
||||
|
||||
token = null;
|
||||
lastToken = null;
|
||||
nextToken = null;
|
||||
|
||||
c0 = 0;
|
||||
c = 0;
|
||||
c2 = 0;
|
||||
}
|
||||
|
||||
boolean printable() {
|
||||
return !commented && (printToken || inString());
|
||||
}
|
||||
|
||||
boolean inString() {
|
||||
return doubleQuoted || singleQuoted;
|
||||
}
|
||||
|
||||
boolean delimiterSurrounded() {
|
||||
return !JSO.isDelimiter(nextToken) && !JSO.isDelimiter(lastToken);
|
||||
}
|
||||
|
||||
boolean isWhitespace(){
|
||||
return Character.isWhitespace(c);
|
||||
}
|
||||
|
||||
String setToken(String value) {
|
||||
String oldToken = lastToken;
|
||||
lastToken = token;
|
||||
token = value;
|
||||
nextToken = null;
|
||||
|
||||
if (value != null) {
|
||||
c0 = c;
|
||||
c = token == null ? 0 : token.charAt(0);
|
||||
c2 = 0;
|
||||
|
||||
backslashed = c0 == '\\';
|
||||
dotted = c0 == '.';
|
||||
delimiter = JSO.isDelimiter(token);
|
||||
printToken = true;
|
||||
}
|
||||
|
||||
return oldToken;
|
||||
}
|
||||
|
||||
String tokenBackslashed() {
|
||||
String result = null;
|
||||
int index = 0;
|
||||
if (c == 'u') {
|
||||
index = 4;
|
||||
} else if (Character.isDigit(c)) {
|
||||
index = 3;
|
||||
} else {
|
||||
throw new IllegalStateException("Token not backslashed or invalid JavaScript syntax.");
|
||||
}
|
||||
result = token.substring(0, index);
|
||||
token = token.substring(index);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
void setNextToken(String value) {
|
||||
nextToken = value;
|
||||
c2 = value.charAt(0);
|
||||
}
|
||||
|
||||
void skipToken() {
|
||||
this.setToken(nextToken);
|
||||
}
|
||||
|
||||
void noToken() {
|
||||
nextToken = null;
|
||||
c2 = 0;
|
||||
}
|
||||
|
||||
boolean flipFlags() {
|
||||
if (isWhitespace()) {
|
||||
printToken = delimiterSurrounded() || JSO.isDebug;
|
||||
} else if (c == '/') {
|
||||
if (!commented && c2 == '/') {
|
||||
return true;
|
||||
} else if (!commented && c2 == '*' &&
|
||||
!inString()) {
|
||||
commented = true;
|
||||
} else if (commented && c0 == '*') {
|
||||
commented = false;
|
||||
printToken = false;
|
||||
}
|
||||
} else if (c == '\"' && !singleQuoted && !backslashed && !commented) {
|
||||
doubleQuoted = !doubleQuoted;
|
||||
} else if (c == '\'' && !doubleQuoted && !backslashed && !commented) {
|
||||
singleQuoted = !singleQuoted;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user