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SubServers.Bungee/src/net/ME1312/SubServers/Bungee/Library/FileScanner.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| package net.ME1312.SubServers.Bungee.Library; | ||
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| import net.ME1312.Galaxi.Library.Util; | ||
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| import java.io.*; | ||
| import java.lang.reflect.InvocationTargetException; | ||
| import java.util.*; | ||
| import java.util.regex.Pattern; | ||
|
|
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| /** | ||
| * File Scanner Base Class | ||
| */ | ||
| public abstract class FileScanner { | ||
|
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| /** | ||
| * Scan a Directory | ||
| * | ||
| * @param dir Directory | ||
| * @param whitelist File Whitelist | ||
| */ | ||
| protected void scan(File dir, String... whitelist) throws IOException { | ||
| List<String> files; | ||
| try { | ||
| files = Util.reflect(Util.class.getDeclaredMethod("zipsearch", File.class, File.class), null, dir, dir); | ||
| } catch (IllegalAccessException | InvocationTargetException | NoSuchMethodException e) { | ||
| throw new IllegalStateException("Cannot access zipsearch()", e); | ||
| } | ||
| if (files.size() <= 0 || whitelist.length <= 0) | ||
| return; | ||
|
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| boolean csfs = false; | ||
| { | ||
| long stamp = Math.round(Math.random() * 100000); | ||
| File test1 = new File(dir, '.' + stamp + ".ss_fsc"); | ||
| File test2 = new File(dir, '.' + stamp + ".SS_FSC"); | ||
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| test1.createNewFile(); | ||
| if (test2.createNewFile()) { | ||
| csfs = true; | ||
| test2.delete(); | ||
| } | ||
| test1.delete(); | ||
| } | ||
|
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| LinkedHashMap<Pattern, Boolean> rules = new LinkedHashMap<Pattern, Boolean>(); | ||
| for (String entry : whitelist) { | ||
| boolean mode = !entry.startsWith("!"); | ||
| if (!mode) entry = entry.substring(1); | ||
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| String pattern; | ||
| if (!entry.startsWith("%")) { | ||
| if (entry.startsWith("./")) | ||
| entry = entry.substring(1); | ||
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| StringBuilder rule = new StringBuilder(); | ||
| if (entry.startsWith("**")) { | ||
| entry = entry.substring(2); | ||
| rule.append("^.*"); | ||
| } else if (entry.startsWith("/")) { | ||
| rule.append("^"); | ||
| } | ||
|
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| boolean greedyEnding = false; | ||
| if (entry.endsWith("**")) { | ||
| entry = entry.substring(0, entry.length() - 2); | ||
| greedyEnding = true; | ||
| } else if (entry.endsWith("/")) { | ||
| greedyEnding = true; | ||
| } | ||
|
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| StringBuilder literal = new StringBuilder(); | ||
| for (PrimitiveIterator.OfInt i = entry.codePoints().iterator(); i.hasNext(); ) { | ||
| int c = i.next(); | ||
| if ((c == '*' || c == '?' || c == '[') && literal.length() > 0) { | ||
| rule.append(Pattern.quote(literal.toString())); | ||
| literal = new StringBuilder(); | ||
| } | ||
| switch (c) { | ||
| case '\\': | ||
| if (i.hasNext()) c = i.next(); | ||
| literal.appendCodePoint(c); | ||
| case '[': | ||
| for (boolean escaped = false; i.hasNext() && (c != ']' || escaped); c = i.next()) { | ||
| if (c == '\\') escaped = !escaped; | ||
| else escaped = false; | ||
| literal.appendCodePoint(c); | ||
| } | ||
| if (c == ']' && literal.length() > 1) { | ||
| literal.appendCodePoint(c); | ||
| rule.append(literal.toString()); | ||
| } | ||
| literal = new StringBuilder(); | ||
| break; | ||
| case '*': | ||
| rule.append("[^/]+"); | ||
| break; | ||
| case '?': | ||
| rule.append("[^/]"); | ||
| break; | ||
| default: | ||
| literal.appendCodePoint(c); | ||
| break; | ||
| } | ||
| } | ||
| if (literal.length() > 0) | ||
| rule.append(Pattern.quote(literal.toString())); | ||
|
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| if (greedyEnding) | ||
| rule.append(".*"); | ||
| rule.append("$"); | ||
| pattern = rule.toString(); | ||
| } else { | ||
| pattern = entry.substring(1); | ||
| } | ||
|
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| if (csfs) rules.put(Pattern.compile(pattern), mode); | ||
| else rules.put(Pattern.compile(pattern, Pattern.CASE_INSENSITIVE), mode); | ||
| } | ||
|
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| for (String file : files) { | ||
| boolean act = false; | ||
|
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| for (Map.Entry<Pattern, Boolean> rule : rules.entrySet()) { | ||
| if (rule.getKey().matcher('/' + file.replace(File.separatorChar, '/')).find()) act = rule.getValue(); | ||
| } | ||
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| if (act) act(dir, file); | ||
| } | ||
| } | ||
|
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| /** | ||
| * Perform an action on an included file | ||
| * | ||
| * @param dir Parent Directory | ||
| * @param name File Name | ||
| */ | ||
| protected abstract void act(File dir, String name) throws IOException; | ||
| } |
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