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| import * as estraverse from 'estraverse';
import { ICustomNode } from './interfaces/ICustomNode';
import { INodesGroup } from './interfaces/INodesGroup';
import { INode } from './interfaces/nodes/INode';
import { IObfuscator } from "./interfaces/IObfuscator";
import { IOptions } from "./interfaces/IOptions";
import { TNodeObfuscator } from "./types/TNodeObfuscator";
import { AppendState } from './enums/AppendState';
import { NodeType } from './enums/NodeType';
import { CatchClauseObfuscator } from './node-obfuscators/CatchClauseObfuscator';
import { ConsoleOutputDisableExpressionNode } from './custom-nodes/console-output-nodes/ConsoleOutputDisableExpressionNode';
import { DebugProtectionNodesGroup } from './node-groups/DebugProtectionNodesGroup';
import { FunctionDeclarationObfuscator } from './node-obfuscators/FunctionDeclarationObfuscator';
import { FunctionObfuscator } from './node-obfuscators/FunctionObfuscator';
import { LiteralObfuscator } from './node-obfuscators/LiteralObfuscator';
import { MemberExpressionObfuscator } from './node-obfuscators/MemberExpressionObfuscator';
import { MethodDefinitionObfuscator } from './node-obfuscators/MethodDefinitionObfuscator';
import { NodeUtils } from "./NodeUtils";
import { ObjectExpressionObfuscator } from './node-obfuscators/ObjectExpressionObfuscator';
import { SelfDefendingNodesGroup } from "./node-groups/SelfDefendingNodesGroup";
import { UnicodeArrayNodesGroup } from './node-groups/UnicodeArrayNodesGroup';
import { VariableDeclarationObfuscator } from './node-obfuscators/VariableDeclarationObfuscator';
export class Obfuscator implements IObfuscator {
/**
* @type {Map<string, Node>}
*/
private nodes: Map <string, ICustomNode> = new Map <string, ICustomNode> ();
/**
* @type {Map<string, TNodeObfuscator[]>}
*/
private nodeObfuscators: Map <string, TNodeObfuscator[]> = new Map <string, TNodeObfuscator[]> ([
[NodeType.ArrowFunctionExpression, [FunctionObfuscator]],
[NodeType.ClassDeclaration, [FunctionDeclarationObfuscator]],
[NodeType.CatchClause, [CatchClauseObfuscator]],
[NodeType.FunctionDeclaration, [
FunctionDeclarationObfuscator,
FunctionObfuscator
]],
[NodeType.FunctionExpression, [FunctionObfuscator]],
[NodeType.MemberExpression, [MemberExpressionObfuscator]],
[NodeType.MethodDefinition, [MethodDefinitionObfuscator]],
[NodeType.ObjectExpression, [ObjectExpressionObfuscator]],
[NodeType.VariableDeclaration, [VariableDeclarationObfuscator]],
[NodeType.Literal, [LiteralObfuscator]]
]);
/**
* @type {IOptions}
*/
private options: IOptions;
/**
* @param options
*/
constructor (options: IOptions) {
this.options = options;
}
/**
* @param node
* @returns {INode}
*/
public obfuscateNode (node: INode): INode {
this.setNewNodes();
NodeUtils.parentize(node);
this.beforeObfuscation(node);
this.obfuscate(node);
this.afterObfuscation(node);
return node;
}
/**
* @param nodeName
* @param node
*/
private setNode (nodeName: string, node: ICustomNode): void {
this.nodes.set(nodeName, node);
}
/**
* @param nodesGroup
*/
private setNodesGroup (nodesGroup: INodesGroup): void {
let nodes: Map <string, ICustomNode> = nodesGroup.getNodes();
nodes.forEach((node: ICustomNode, key: string) => {
this.nodes.set(key, node);
});
}
/**
* @param astTree
*/
private afterObfuscation (astTree: INode): void {
this.nodes.forEach((node: ICustomNode) => {
Eif (node.getAppendState() === AppendState.AfterObfuscation) {
node.appendNode(astTree);
}
});
}
/**
* @param astTree
*/
private beforeObfuscation (astTree: INode): void {
this.nodes.forEach((node: ICustomNode) => {
Iif (node.getAppendState() === AppendState.BeforeObfuscation) {
node.appendNode(astTree);
}
});
};
/**
* @param node
* @param parentNode
*/
private initializeNodeObfuscators (node: INode, parentNode: INode): void {
if (!this.nodeObfuscators.has(node.type)) {
return;
}
this.nodeObfuscators.get(node.type).forEach((obfuscator: TNodeObfuscator) => {
new obfuscator(this.nodes, this.options).obfuscateNode(node, parentNode);
});
}
/**
* @param node
*/
private obfuscate (node: INode): void {
estraverse.replace(node, {
leave: (node: INode, parentNode: INode): any => {
this.initializeNodeObfuscators(node, parentNode);
}
});
}
private setNewNodes (): void {
Iif (this.options.get('selfDefending')) {
this.setNodesGroup(new SelfDefendingNodesGroup(this.options));
}
Iif (this.options.get('disableConsoleOutput')) {
this.setNode(
'consoleOutputDisableExpressionNode',
new ConsoleOutputDisableExpressionNode(this.options)
);
}
Iif (this.options.get('debugProtection')) {
this.setNodesGroup(new DebugProtectionNodesGroup(this.options));
}
if (this.options.get('unicodeArray')) {
/**
* Important to set this nodes latest to prevent runtime errors caused by `rotateUnicodeArray` option
*/
this.setNodesGroup(new UnicodeArrayNodesGroup(this.options));
}
}
}
|