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Some refactoring

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This commit is contained in:
sanex3339
2018-01-13 18:21:29 +03:00
parent 255dd1476b
commit 4282ed2a81
5 changed files with 20 additions and 99 deletions
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dist/index.js
Vendored
+1 -1
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File diff suppressed because one or more lines are too long
src/JavaScriptObfuscator.ts
+16 -83
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@@ -184,7 +184,7 @@ export class JavaScriptObfuscator implements IJavaScriptObfuscator {
return astTree;
}
astTree = this.runPreparingStage(astTree);
astTree = this.runTransformationStage(astTree, TransformationStage.Preparing);
this.logger.info(LoggingMessage.AnalyzingASTTreeStage);
const stackTraceData: IStackTraceData[] = this.stackTraceAnalyzer.analyze(astTree);
@@ -202,11 +202,17 @@ export class JavaScriptObfuscator implements IJavaScriptObfuscator {
this.obfuscationEventEmitter.emit(ObfuscationEvent.BeforeObfuscation, astTree, stackTraceData);
astTree = this.runDeadCodeInjectionStage(astTree);
astTree = this.runControlFlowFlatteningStage(astTree);
astTree = this.runConvertingStage(astTree);
astTree = this.runObfuscatingStage(astTree);
astTree = this.runFinalizingStage(astTree);
if (this.options.deadCodeInjection) {
astTree = this.runTransformationStage(astTree, TransformationStage.DeadCodeInjection);
}
if (this.options.controlFlowFlattening) {
astTree = this.runTransformationStage(astTree, TransformationStage.ControlFlowFlattening);
}
astTree = this.runTransformationStage(astTree, TransformationStage.Converting);
astTree = this.runTransformationStage(astTree, TransformationStage.Obfuscating);
astTree = this.runTransformationStage(astTree, TransformationStage.Finalizing);
this.obfuscationEventEmitter.emit(ObfuscationEvent.AfterObfuscation, astTree, stackTraceData);
@@ -253,89 +259,16 @@ export class JavaScriptObfuscator implements IJavaScriptObfuscator {
/**
* @param {Program} astTree
* @param {TransformationStage} transformationStage
* @returns {Program}
*/
private runPreparingStage (astTree: ESTree.Program): ESTree.Program {
this.logger.info(LoggingMessage.TransformationStage, TransformationStage.Preparing);
private runTransformationStage (astTree: ESTree.Program, transformationStage: TransformationStage): ESTree.Program {
this.logger.info(LoggingMessage.TransformationStage, transformationStage);
return this.transformersRunner.transform(
astTree,
JavaScriptObfuscator.transformersList,
TransformationStage.Preparing
);
}
/**
* @param {Program} astTree
* @returns {Program}
*/
private runDeadCodeInjectionStage (astTree: ESTree.Program): ESTree.Program {
if (this.options.deadCodeInjection) {
this.logger.info(LoggingMessage.TransformationStage, TransformationStage.DeadCodeInjection);
}
return this.transformersRunner.transform(
astTree,
JavaScriptObfuscator.transformersList,
TransformationStage.DeadCodeInjection
);
}
/**
* @param {Program} astTree
* @returns {Program}
*/
private runControlFlowFlatteningStage (astTree: ESTree.Program): ESTree.Program {
if (this.options.controlFlowFlattening) {
this.logger.info(LoggingMessage.TransformationStage, TransformationStage.ControlFlowFlattening);
}
return this.transformersRunner.transform(
astTree,
JavaScriptObfuscator.transformersList,
TransformationStage.ControlFlowFlattening
);
}
/**
* @param {Program} astTree
* @returns {Program}
*/
private runConvertingStage (astTree: ESTree.Program): ESTree.Program {
this.logger.info(LoggingMessage.TransformationStage, TransformationStage.Converting);
return this.transformersRunner.transform(
astTree,
JavaScriptObfuscator.transformersList,
TransformationStage.Converting
);
}
/**
* @param {Program} astTree
* @returns {Program}
*/
private runObfuscatingStage (astTree: ESTree.Program): ESTree.Program {
this.logger.info(LoggingMessage.TransformationStage, TransformationStage.Obfuscating);
return this.transformersRunner.transform(
astTree,
JavaScriptObfuscator.transformersList,
TransformationStage.Obfuscating
);
}
/**
* @param {Program} astTree
* @returns {Program}
*/
private runFinalizingStage (astTree: ESTree.Program): ESTree.Program {
this.logger.info(LoggingMessage.TransformationStage, TransformationStage.Finalizing);
return this.transformersRunner.transform(
astTree,
JavaScriptObfuscator.transformersList,
TransformationStage.Finalizing
transformationStage
);
}
}
src/node-transformers/control-flow-transformers/BlockStatementControlFlowTransformer.ts
-4
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@@ -104,10 +104,6 @@ export class BlockStatementControlFlowTransformer extends AbstractNodeTransforme
* @returns {IVisitor | null}
*/
public getVisitor (transformationStage: TransformationStage): IVisitor | null {
if (!this.options.controlFlowFlattening) {
return null;
}
switch (transformationStage) {
case TransformationStage.ControlFlowFlattening:
return {
src/node-transformers/control-flow-transformers/FunctionControlFlowTransformer.ts
-4
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@@ -106,10 +106,6 @@ export class FunctionControlFlowTransformer extends AbstractNodeTransformer {
* @returns {IVisitor | null}
*/
public getVisitor (transformationStage: TransformationStage): IVisitor | null {
if (!this.options.controlFlowFlattening) {
return null;
}
switch (transformationStage) {
case TransformationStage.ControlFlowFlattening:
return {
src/node-transformers/dead-code-injection-transformers/DeadCodeInjectionTransformer.ts
+3 -7
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@@ -51,7 +51,7 @@ export class DeadCodeInjectionTransformer extends AbstractNodeTransformer {
/**
* @type {number}
*/
private collectedBlockStatementsLength: number;
private collectedBlockStatementsTotalLength: number;
/**
* @type {TDeadNodeInjectionCustomNodeFactory}
@@ -113,10 +113,6 @@ export class DeadCodeInjectionTransformer extends AbstractNodeTransformer {
* @returns {IVisitor | null}
*/
public getVisitor (transformationStage: TransformationStage): IVisitor | null {
if (!this.options.deadCodeInjection) {
return null;
}
switch (transformationStage) {
case TransformationStage.DeadCodeInjection:
return {
@@ -173,7 +169,7 @@ export class DeadCodeInjectionTransformer extends AbstractNodeTransformer {
}
});
this.collectedBlockStatementsLength = this.collectedBlockStatements.length;
this.collectedBlockStatementsTotalLength = this.collectedBlockStatements.length;
}
/**
@@ -182,7 +178,7 @@ export class DeadCodeInjectionTransformer extends AbstractNodeTransformer {
* @returns {NodeGuards | VisitorOption}
*/
public transformNode (blockStatementNode: ESTree.BlockStatement, parentNode: ESTree.Node): ESTree.Node | estraverse.VisitorOption {
if (this.collectedBlockStatementsLength < DeadCodeInjectionTransformer.minCollectedBlockStatementsCount) {
if (this.collectedBlockStatementsTotalLength < DeadCodeInjectionTransformer.minCollectedBlockStatementsCount) {
return estraverse.VisitorOption.Break;
}