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@ -18,10 +18,12 @@ |
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*/ |
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package jode.bytecode; |
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import java.io.*; |
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import java.net.*; |
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import java.util.zip.ZipEntry; |
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import java.util.zip.ZipFile; |
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import java.util.StringTokenizer; |
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import java.util.Enumeration; |
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import jode.Decompiler; |
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/** |
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* This class represents a path of multiple directories and/or zip files, |
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@ -31,6 +33,12 @@ import java.util.Enumeration; |
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*/ |
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public class SearchPath { |
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/** |
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* Hack to allow URLs that use the same separator as the normal |
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* path separator. Use a very unusual character for this. |
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*/ |
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public static final char protocolSeparator = 31; |
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URL[] bases; |
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File[] dirs; |
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ZipFile[] zips; |
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@ -45,23 +53,59 @@ public class SearchPath { |
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new StringTokenizer(path, File.pathSeparator); |
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int length = tokenizer.countTokens(); |
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bases = new URL[length]; |
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dirs = new File[length]; |
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zips = new ZipFile[length]; |
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for (int i=0; i< length; i++) { |
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dirs[i] = new File(tokenizer.nextToken()); |
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if (!dirs[i].isDirectory()) { |
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try { |
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zips[i] = new ZipFile(dirs[i]); |
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} catch (java.io.IOException ex) { |
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/* disable this entry */ |
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dirs[i] = null; |
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} |
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} |
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} |
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String token = tokenizer.nextToken() |
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.replace(protocolSeparator, ':'); |
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int index = token.indexOf(':'); |
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if (index != -1 && index < token.length()-2 |
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&& token.charAt(index+1) == '/' |
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&& token.charAt(index+2) == '/') { |
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// This looks like an URL.
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try { |
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bases[i] = new URL(token); |
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} catch (MalformedURLException ex) { |
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/* disable entry */ |
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bases[i] = null; |
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dirs[i] = null; |
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} |
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} else { |
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try { |
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dirs[i] = new File(token); |
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if (!dirs[i].isDirectory()) { |
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try { |
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zips[i] = new ZipFile(dirs[i]); |
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} catch (java.io.IOException ex) { |
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/* disable this entry */ |
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dirs[i] = null; |
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} |
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} |
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} catch (SecurityException ex) { |
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/* disable this entry */ |
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Decompiler.err.println("Warning: SecurityException while" |
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+ " accessing " + token); |
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dirs[i] = null; |
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} |
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} |
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} |
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} |
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public boolean exists(String filename) { |
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for (int i=0; i<dirs.length; i++) { |
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if (bases[i] != null) { |
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try { |
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URL url = new URL(bases[i], filename); |
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URLConnection conn = url.openConnection(); |
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conn.connect(); |
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conn.getInputStream().close(); |
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return true; |
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} catch (IOException ex) { |
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/* ignore */ |
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} |
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continue; |
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} |
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if (dirs[i] == null) |
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continue; |
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if (zips[i] != null) { |
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@ -72,9 +116,13 @@ public class SearchPath { |
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if (java.io.File.separatorChar != '/') |
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filename = filename |
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.replace('/', java.io.File.separatorChar); |
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File f = new File(dirs[i], filename); |
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if (f.exists()) |
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return true; |
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try { |
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File f = new File(dirs[i], filename); |
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if (f.exists()) |
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return true; |
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} catch (SecurityException ex) { |
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/* ignore and take next element */ |
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} |
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} |
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} |
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return false; |
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@ -88,6 +136,21 @@ public class SearchPath { |
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*/ |
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public InputStream getFile(String filename) throws IOException { |
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for (int i=0; i<dirs.length; i++) { |
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if (bases[i] != null) { |
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try { |
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URL url = new URL(bases[i], filename); |
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URLConnection conn = url.openConnection(); |
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return conn.getInputStream(); |
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} catch (SecurityException ex) { |
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Decompiler.err.println("Warning: SecurityException" |
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+" while accessing " |
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+bases[i]+filename); |
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/* ignore and take next element */ |
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} catch (FileNotFoundException ex) { |
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/* ignore and take next element */ |
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} |
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continue; |
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} |
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if (dirs[i] == null) |
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continue; |
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if (zips[i] != null) { |
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@ -98,9 +161,16 @@ public class SearchPath { |
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if (java.io.File.separatorChar != '/') |
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filename = filename |
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.replace('/', java.io.File.separatorChar); |
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File f = new File(dirs[i], filename); |
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if (f.exists()) |
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return new FileInputStream(f); |
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try { |
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File f = new File(dirs[i], filename); |
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if (f.exists()) |
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return new FileInputStream(f); |
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} catch (SecurityException ex) { |
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Decompiler.err.println("Warning: SecurityException" |
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+" while accessing " |
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+dirs[i]+filename); |
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/* ignore and take next element */ |
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} |
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} |
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} |
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throw new FileNotFoundException(filename); |
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@ -133,9 +203,15 @@ public class SearchPath { |
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if (java.io.File.separatorChar != '/') |
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filename = filename |
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.replace('/', java.io.File.separatorChar); |
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File f = new File(dirs[i], filename); |
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if (f.exists()) |
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return f.isDirectory(); |
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try { |
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File f = new File(dirs[i], filename); |
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if (f.exists()) |
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return f.isDirectory(); |
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} catch (SecurityException ex) { |
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Decompiler.err.println("Warning: SecurityException" |
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+" while accessing " |
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+dirs[i]+filename); |
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} |
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} |
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} |
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return false; |
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@ -190,9 +266,16 @@ public class SearchPath { |
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(java.io.File.separatorChar != '/') |
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? dirName.replace('/', java.io.File.separatorChar) |
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: dirName; |
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File f = new File(dirs[pathNr], localDirName); |
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if (f.exists() && f.isDirectory()) |
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files = f.list(); |
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try { |
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File f = new File(dirs[pathNr], localDirName); |
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if (f.exists() && f.isDirectory()) |
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files = f.list(); |
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} catch (SecurityException ex) { |
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Decompiler.err.println("Warning: SecurityException" |
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+" while accessing " |
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+dirs[pathNr]+localDirName); |
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/* ignore and take next element */ |
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} |
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} |
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pathNr++; |
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} |
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jochen
26 years ago