* Helper class for exporting resources to the file system.
*/
public class ObfuscatorPass2Exporter implements ITerminalSymbols {
- private Scanner fScanner;
- private int fToken;
- private int fCounter;
-
- protected HashMap fIdentifierMap;
-
- public ObfuscatorPass2Exporter(Scanner scanner, HashMap identifierMap) {
- fScanner = scanner;
- fIdentifierMap = identifierMap;
- fCounter = 0;
- }
-
- /**
- * gets the next token from input
- */
- private void getNextToken() {
-
- try {
- fToken = fScanner.getNextToken();
- if (Scanner.DEBUG) {
- int currentEndPosition = fScanner.getCurrentTokenEndPosition();
- int currentStartPosition = fScanner.getCurrentTokenStartPosition();
-
- System.out.print(currentStartPosition + "," + currentEndPosition + ": ");
- System.out.println(fScanner.toStringAction(fToken));
- }
- return;
- } catch (InvalidInputException e) {
-
- }
- fToken = TokenNameERROR;
- }
-
- private boolean obfuscate(StringBuffer buf) {
- char[] ident;
- String identifier;
- PHPIdentifier value;
-
- int startPosition = 0;
- int lastPosition = 0;
-
- IPreferenceStore store = PHPeclipsePlugin.getDefault().getPreferenceStore();
- try {
- while (fToken != TokenNameEOF && fToken != TokenNameERROR) {
- if (fToken == TokenNameVariable) {
- identifier = new String(fScanner.getCurrentIdentifierSource());
- lastPosition = fScanner.startPosition;
- int len = lastPosition - startPosition;
- buf.append(fScanner.source, startPosition, len);
- value = (PHPIdentifier) fIdentifierMap.get(identifier);
- if (value != null) {
- String obfuscatedIdentifier = value.getIdentifier();
- if (obfuscatedIdentifier == null) {
- buf.append("$v" + Integer.toString(fCounter));
- value.setIdentifier("$v" + Integer.toString(fCounter++));
- } else {
- buf.append(obfuscatedIdentifier);
- }
- // System.out.println(hexString.toString());
- } else {
- buf.append(identifier);
- }
- startPosition = fScanner.currentPosition;
- getNextToken();
- } else if (fToken == TokenNameIdentifier) {
- identifier = new String(fScanner.getCurrentIdentifierSource());
- lastPosition = fScanner.startPosition;
- int len = lastPosition - startPosition;
- buf.append(fScanner.source, startPosition, len);
- value = (PHPIdentifier) fIdentifierMap.get(identifier);
- if (value != null) {
- String obfuscatedIdentifier = value.getIdentifier();
- if (obfuscatedIdentifier == null) {
- buf.append("_" + Integer.toString(fCounter));
- value.setIdentifier("_" + Integer.toString(fCounter++));
- } else {
- buf.append(obfuscatedIdentifier);
- }
- // System.out.println(hexString.toString());
- } else {
- buf.append(identifier);
- }
- startPosition = fScanner.currentPosition;
- getNextToken();
-
- } else if (fToken == TokenNameCOMMENT_LINE || fToken == TokenNameCOMMENT_BLOCK || fToken == TokenNameCOMMENT_PHPDOC) {
- lastPosition = fScanner.startPosition;
- buf.append(fScanner.source, startPosition, lastPosition - startPosition);
- startPosition = fScanner.currentPosition;
- getNextToken();
- } else if (fToken == TokenNameStringDoubleQuote) {
- char currentCharacter;
- int i = fScanner.startPosition;
- ArrayList varList = new ArrayList();
-
- lastPosition = fScanner.startPosition;
- int len = lastPosition - startPosition;
- buf.append(fScanner.source, startPosition, len);
-
- while (i < fScanner.currentPosition) {
- currentCharacter = fScanner.source[i++];
- if (currentCharacter == '$' && fScanner.source[i - 2] != '\\') {
- StringBuffer varName = new StringBuffer();
- varName.append("$");
- while (i < fScanner.currentPosition) {
- currentCharacter = fScanner.source[i++];
- if (!Scanner.isPHPIdentifierPart(currentCharacter)) {
- break; // while loop
- }
- varName.append(currentCharacter);
- }
- varList.add(varName.toString());
- }
- }
- StringBuffer stringLiteral = new StringBuffer();
- stringLiteral.append(fScanner.source, fScanner.startPosition, fScanner.currentPosition - fScanner.startPosition);
- String stringIdent;
- String replacement;
- int index;
-
- for (int j = 0; j < varList.size(); j++) {
- stringIdent = (String) varList.get(j);
- len = stringIdent.length();
- value = (PHPIdentifier) fIdentifierMap.get(stringIdent);
- if (value != null) {
- String obfuscatedIdentifier = value.getIdentifier();
- if (obfuscatedIdentifier == null) {
- replacement = "$v" + Integer.toString(fCounter);
- value.setIdentifier("$v" + Integer.toString(fCounter++));
- } else {
- replacement = obfuscatedIdentifier;
- }
- // System.out.println(hexString.toString());
- } else {
- replacement = stringIdent;
- }
- index = stringLiteral.indexOf(stringIdent);
- if (index >= 0) {
- if (index > 0 && stringLiteral.charAt(index - 1) != '\\') {
- stringLiteral.replace(index, index + stringIdent.length(), replacement);
- } else if (index == 0) {
- stringLiteral.replace(index, index + stringIdent.length(), replacement);
- }
- }
- }
- buf.append(stringLiteral);
- startPosition = fScanner.currentPosition;
- getNextToken();
- }
- if (fToken == TokenNameMINUS_GREATER) { // i.e. $this->var_name
- getNextToken();
- if (fToken == TokenNameIdentifier) {
- // assuming this is a dereferenced variable
- identifier = new String(fScanner.getCurrentIdentifierSource());
- lastPosition = fScanner.startPosition;
- int len = lastPosition - startPosition;
- buf.append(fScanner.source, startPosition, len);
- value = (PHPIdentifier) fIdentifierMap.get("$" + identifier);
- if (value != null && value.isVariable()) {
- String obfuscatedIdentifier = value.getIdentifier();
- if (obfuscatedIdentifier == null) {
- // note: don't place a $ before the identifier
- buf.append("v" + Integer.toString(fCounter));
- value.setIdentifier("$v" + Integer.toString(fCounter++));
- } else {
- if (obfuscatedIdentifier.charAt(0) == '$') {
- buf.append(obfuscatedIdentifier.substring(1));
- } else {
- buf.append(obfuscatedIdentifier);
- }
- }
- } else {
- buf.append(identifier);
- }
- startPosition = fScanner.currentPosition;
- getNextToken();
- }
-
- } else {
- getNextToken();
- }
- }
- if (startPosition < fScanner.source.length) {
- buf.append(fScanner.source, startPosition, fScanner.source.length - startPosition);
- }
- return true;
- } catch (SyntaxError sytaxErr) {
- // do nothing
- }
-
- return false;
- }
- /**
- * Creates the specified file system directory at <code>destinationPath</code>.
- * This creates a new file system directory.
- */
- public void createFolder(IPath destinationPath) {
- new File(destinationPath.toOSString()).mkdir();
- }
- /**
- * Writes the passed resource to the specified location recursively
- */
- public void write(IResource resource, IPath destinationPath) throws CoreException, IOException {
- if (resource.getType() == IResource.FILE)
- writeFile((IFile) resource, destinationPath);
- else
- writeChildren((IContainer) resource, destinationPath);
- }
- /**
- * Exports the passed container's children
- */
- protected void writeChildren(IContainer folder, IPath destinationPath) throws CoreException, IOException {
- if (folder.isAccessible()) {
- IResource[] children = folder.members();
- for (int i = 0; i < children.length; i++) {
- IResource child = children[i];
- writeResource(child, destinationPath.append(child.getName()));
- }
- }
- }
- /**
- * Writes the passed file resource to the specified destination on the local
- * file system
- */
- protected void writeFile(IFile file, IPath destinationPath) throws IOException, CoreException {
- if (PHPFileUtil.isPHPFile(file)) {
- InputStream stream = null;
- char[] charArray = null;
- try {
- stream = new BufferedInputStream(file.getContents());
- charArray = Util.getInputStreamAsCharArray(stream, -1, null);
- } catch (IOException e) {
- return;
- } finally {
- try {
- if (stream != null) {
- stream.close();
- }
- } catch (IOException e) {
- }
- }
-
- if (charArray == null) {
- // TODO show error message
- return;
- }
-
- fScanner.setSource(charArray);
- fScanner.setPHPMode(false);
- fToken = TokenNameEOF;
- getNextToken();
-
- StringBuffer buf = new StringBuffer();
- if (!obfuscate(buf)) {
- copyFile(file, destinationPath);
- } else {
- // charArray = buf.toString().toCharArray();
- // File targetFile = new File(destinationPath.toOSString());
- BufferedWriter bw = new BufferedWriter(new FileWriter(destinationPath.toOSString()));
- bw.write(buf.toString());
- bw.close();
- }
-
- } else {
- copyFile(file, destinationPath);
- }
- }
-
- private void copyFile(IFile file, IPath destinationPath) throws FileNotFoundException, CoreException, IOException {
- FileOutputStream output = null;
- InputStream contentStream = null;
-
- try {
- output = new FileOutputStream(destinationPath.toOSString());
- contentStream = file.getContents(false);
- int chunkSize = contentStream.available();
- byte[] readBuffer = new byte[chunkSize];
- int n = contentStream.read(readBuffer);
-
- while (n > 0) {
- output.write(readBuffer);
- n = contentStream.read(readBuffer);
- }
- } finally {
- if (output != null)
- output.close();
- if (contentStream != null)
- contentStream.close();
- }
- }
- /**
- * Writes the passed resource to the specified location recursively
- */
- protected void writeResource(IResource resource, IPath destinationPath) throws CoreException, IOException {
- if (resource.getType() == IResource.FILE)
- writeFile((IFile) resource, destinationPath);
- else {
- createFolder(destinationPath);
- writeChildren((IContainer) resource, destinationPath);
- }
- }
+ private Scanner fScanner;
+
+ private int fToken;
+
+ private int fCounter;
+
+ protected HashMap fIdentifierMap;
+
+ public ObfuscatorPass2Exporter(Scanner scanner, HashMap identifierMap) {
+ fScanner = scanner;
+ fIdentifierMap = identifierMap;
+ fCounter = 0;
+ }
+
+ /**
+ * gets the next token from input
+ */
+ private void getNextToken() {
+
+ try {
+ fToken = fScanner.getNextToken();
+ if (Scanner.DEBUG) {
+ int currentEndPosition = fScanner.getCurrentTokenEndPosition();
+ int currentStartPosition = fScanner
+ .getCurrentTokenStartPosition();
+
+ System.out.print(currentStartPosition + ","
+ + currentEndPosition + ": ");
+ System.out.println(fScanner.toStringAction(fToken));
+ }
+ return;
+ } catch (InvalidInputException e) {
+
+ }
+ fToken = TokenNameERROR;
+ }
+
+ private boolean obfuscate(StringBuffer buf) {
+ char[] ident;
+ String identifier;
+ PHPIdentifier value;
+
+ int startPosition = 0;
+ int lastPosition = 0;
+
+ IPreferenceStore store = PHPeclipsePlugin.getDefault()
+ .getPreferenceStore();
+ try {
+ while (fToken != TokenNameEOF && fToken != TokenNameERROR) {
+ if (fToken == TokenNameVariable) {
+ identifier = new String(fScanner
+ .getCurrentIdentifierSource());
+ lastPosition = fScanner.startPosition;
+ int len = lastPosition - startPosition;
+ buf.append(fScanner.source, startPosition, len);
+ value = (PHPIdentifier) fIdentifierMap.get(identifier);
+ if (value != null) {
+ String obfuscatedIdentifier = value.getIdentifier();
+ if (obfuscatedIdentifier == null) {
+ buf.append("$v" + Integer.toString(fCounter));
+ value.setIdentifier("$v"
+ + Integer.toString(fCounter++));
+ } else {
+ buf.append(obfuscatedIdentifier);
+ }
+ // System.out.println(hexString.toString());
+ } else {
+ buf.append(identifier);
+ }
+ startPosition = fScanner.currentPosition;
+ getNextToken();
+ } else if (fToken == TokenNameIdentifier) {
+ identifier = new String(fScanner
+ .getCurrentIdentifierSource());
+ lastPosition = fScanner.startPosition;
+ int len = lastPosition - startPosition;
+ buf.append(fScanner.source, startPosition, len);
+ value = (PHPIdentifier) fIdentifierMap.get(identifier);
+ if (value != null) {
+ String obfuscatedIdentifier = value.getIdentifier();
+ if (obfuscatedIdentifier == null) {
+ buf.append("_" + Integer.toString(fCounter));
+ value.setIdentifier("_"
+ + Integer.toString(fCounter++));
+ } else {
+ buf.append(obfuscatedIdentifier);
+ }
+ // System.out.println(hexString.toString());
+ } else {
+ buf.append(identifier);
+ }
+ startPosition = fScanner.currentPosition;
+ getNextToken();
+
+ } else if (fToken == TokenNameCOMMENT_LINE
+ || fToken == TokenNameCOMMENT_BLOCK
+ || fToken == TokenNameCOMMENT_PHPDOC) {
+ lastPosition = fScanner.startPosition;
+ buf.append(fScanner.source, startPosition, lastPosition
+ - startPosition);
+ startPosition = fScanner.currentPosition;
+ getNextToken();
+ } else if (fToken == TokenNameStringDoubleQuote) {
+ char currentCharacter;
+ int i = fScanner.startPosition;
+ ArrayList varList = new ArrayList();
+
+ lastPosition = fScanner.startPosition;
+ int len = lastPosition - startPosition;
+ buf.append(fScanner.source, startPosition, len);
+
+ while (i < fScanner.currentPosition) {
+ currentCharacter = fScanner.source[i++];
+ if (currentCharacter == '$'
+ && fScanner.source[i - 2] != '\\') {
+ StringBuffer varName = new StringBuffer();
+ varName.append("$");
+ while (i < fScanner.currentPosition) {
+ currentCharacter = fScanner.source[i++];
+ if (!Scanner
+ .isPHPIdentifierPart(currentCharacter)) {
+ break; // while loop
+ }
+ varName.append(currentCharacter);
+ }
+ varList.add(varName.toString());
+ }
+ }
+ StringBuffer stringLiteral = new StringBuffer();
+ stringLiteral.append(fScanner.source,
+ fScanner.startPosition, fScanner.currentPosition
+ - fScanner.startPosition);
+ String stringIdent;
+ String replacement;
+ int index;
+
+ for (int j = 0; j < varList.size(); j++) {
+ stringIdent = (String) varList.get(j);
+ len = stringIdent.length();
+ value = (PHPIdentifier) fIdentifierMap.get(stringIdent);
+ if (value != null) {
+ String obfuscatedIdentifier = value.getIdentifier();
+ if (obfuscatedIdentifier == null) {
+ replacement = "$v" + Integer.toString(fCounter);
+ value.setIdentifier("$v"
+ + Integer.toString(fCounter++));
+ } else {
+ replacement = obfuscatedIdentifier;
+ }
+ // System.out.println(hexString.toString());
+ } else {
+ replacement = stringIdent;
+ }
+ index = stringLiteral.indexOf(stringIdent);
+ if (index >= 0) {
+ if (index > 0
+ && stringLiteral.charAt(index - 1) != '\\') {
+ stringLiteral.replace(index, index
+ + stringIdent.length(), replacement);
+ } else if (index == 0) {
+ stringLiteral.replace(index, index
+ + stringIdent.length(), replacement);
+ }
+ }
+ }
+ buf.append(stringLiteral);
+ startPosition = fScanner.currentPosition;
+ getNextToken();
+ }
+ if (fToken == TokenNameMINUS_GREATER) { // i.e. $this->var_name
+ getNextToken();
+ if (fToken == TokenNameIdentifier) {
+ // assuming this is a dereferenced variable
+ identifier = new String(fScanner
+ .getCurrentIdentifierSource());
+ lastPosition = fScanner.startPosition;
+ int len = lastPosition - startPosition;
+ buf.append(fScanner.source, startPosition, len);
+ value = (PHPIdentifier) fIdentifierMap.get("$"
+ + identifier);
+ if (value != null && value.isVariable()) {
+ String obfuscatedIdentifier = value.getIdentifier();
+ if (obfuscatedIdentifier == null) {
+ // note: don't place a $ before the identifier
+ buf.append("v" + Integer.toString(fCounter));
+ value.setIdentifier("$v"
+ + Integer.toString(fCounter++));
+ } else {
+ if (obfuscatedIdentifier.charAt(0) == '$') {
+ buf.append(obfuscatedIdentifier
+ .substring(1));
+ } else {
+ buf.append(obfuscatedIdentifier);
+ }
+ }
+ } else {
+ buf.append(identifier);
+ }
+ startPosition = fScanner.currentPosition;
+ getNextToken();
+ }
+
+ } else {
+ getNextToken();
+ }
+ }
+ if (startPosition < fScanner.source.length) {
+ buf.append(fScanner.source, startPosition,
+ fScanner.source.length - startPosition);
+ }
+ return true;
+ } catch (SyntaxError sytaxErr) {
+ // do nothing
+ }
+
+ return false;
+ }
+
+ /**
+ * Creates the specified file system directory at
+ * <code>destinationPath</code>. This creates a new file system
+ * directory.
+ */
+ public void createFolder(IPath destinationPath) {
+ new File(destinationPath.toOSString()).mkdir();
+ }
+
+ /**
+ * Writes the passed resource to the specified location recursively
+ */
+ public void write(IResource resource, IPath destinationPath)
+ throws CoreException, IOException {
+ if (resource.getType() == IResource.FILE)
+ writeFile((IFile) resource, destinationPath);
+ else
+ writeChildren((IContainer) resource, destinationPath);
+ }
+
+ /**
+ * Exports the passed container's children
+ */
+ protected void writeChildren(IContainer folder, IPath destinationPath)
+ throws CoreException, IOException {
+ if (folder.isAccessible()) {
+ IResource[] children = folder.members();
+ for (int i = 0; i < children.length; i++) {
+ IResource child = children[i];
+ writeResource(child, destinationPath.append(child.getName()));
+ }
+ }
+ }
+
+ /**
+ * Writes the passed file resource to the specified destination on the local
+ * file system
+ */
+ protected void writeFile(IFile file, IPath destinationPath)
+ throws IOException, CoreException {
+ if (PHPFileUtil.isPHPFile(file)) {
+ InputStream stream = null;
+ char[] charArray = null;
+ try {
+ stream = new BufferedInputStream(file.getContents());
+ charArray = Util.getInputStreamAsCharArray(stream, -1, null);
+ } catch (IOException e) {
+ return;
+ } finally {
+ try {
+ if (stream != null) {
+ stream.close();
+ }
+ } catch (IOException e) {
+ }
+ }
+
+ if (charArray == null) {
+ // TODO show error message
+ return;
+ }
+
+ fScanner.setSource(charArray);
+ fScanner.setPHPMode(false);
+ fToken = TokenNameEOF;
+ getNextToken();
+
+ StringBuffer buf = new StringBuffer();
+ if (!obfuscate(buf)) {
+ copyFile(file, destinationPath);
+ } else {
+ // charArray = buf.toString().toCharArray();
+ // File targetFile = new File(destinationPath.toOSString());
+ BufferedWriter bw = new BufferedWriter(new FileWriter(
+ destinationPath.toOSString()));
+ bw.write(buf.toString());
+ bw.close();
+ }
+
+ } else {
+ copyFile(file, destinationPath);
+ }
+ }
+
+ private void copyFile(IFile file, IPath destinationPath)
+ throws FileNotFoundException, CoreException, IOException {
+ FileOutputStream output = null;
+ InputStream contentStream = null;
+
+ try {
+ output = new FileOutputStream(destinationPath.toOSString());
+ contentStream = file.getContents(false);
+ int chunkSize = contentStream.available();
+ byte[] readBuffer = new byte[chunkSize];
+ int n = contentStream.read(readBuffer);
+
+ while (n > 0) {
+ output.write(readBuffer);
+ n = contentStream.read(readBuffer);
+ }
+ } finally {
+ if (output != null)
+ output.close();
+ if (contentStream != null)
+ contentStream.close();
+ }
+ }
+
+ /**
+ * Writes the passed resource to the specified location recursively
+ */
+ protected void writeResource(IResource resource, IPath destinationPath)
+ throws CoreException, IOException {
+ if (resource.getType() == IResource.FILE)
+ writeFile((IFile) resource, destinationPath);
+ else {
+ createFolder(destinationPath);
+ writeChildren((IContainer) resource, destinationPath);
+ }
+ }
}
git://git.phpeclipse.com / phpeclipse.git / blobdiff