diff options
Diffstat (limited to 'EssentialsUpdate/src/com/earth2me/essentials/update/UpdateFile.java')
-rw-r--r-- | EssentialsUpdate/src/com/earth2me/essentials/update/UpdateFile.java | 205 |
1 files changed, 0 insertions, 205 deletions
diff --git a/EssentialsUpdate/src/com/earth2me/essentials/update/UpdateFile.java b/EssentialsUpdate/src/com/earth2me/essentials/update/UpdateFile.java deleted file mode 100644 index 3d465e2e8..000000000 --- a/EssentialsUpdate/src/com/earth2me/essentials/update/UpdateFile.java +++ /dev/null @@ -1,205 +0,0 @@ -package com.earth2me.essentials.update; - -import java.io.BufferedInputStream; -import java.io.File; -import java.io.FileInputStream; -import java.io.IOException; -import java.math.BigInteger; -import java.security.KeyFactory; -import java.security.PublicKey; -import java.security.Signature; -import java.security.spec.X509EncodedKeySpec; -import java.util.Collections; -import java.util.Map; -import java.util.TreeMap; -import java.util.logging.Level; -import java.util.logging.Logger; -import org.bukkit.Bukkit; -import org.bukkit.configuration.file.YamlConfiguration; -import org.bukkit.plugin.Plugin; - - -public class UpdateFile -{ - private final static Logger LOGGER = Bukkit.getLogger(); - private final static String UPDATE_URL = "http://goo.gl/67jev"; - private final static BigInteger PUBLIC_KEY = new BigInteger("5ha6a2d4qdy17ttkg8evh74sl5a87djojwenu12k1lvy8ui6003e6l06rntczpoh99mhc3txj8mqlxw111oyy9yl7s7qpyluyzix3j1odxrxx4u52gxvyu6qiteapczkzvi7rxgeqsozz7b19rdx73a7quo9ybwpz1cr82r7x5k0pg2a73pjjsv2j1awr13azo7klrcxp9y5xxwf5qv1s3tw4zqftli18u0ek5qkbzfbgk1v5n2f11pkwwk6p0mibrn26wnjbv11vyiqgu95o7busmt6vf5q7grpcenl637w83mbin56s3asj1131b2mscj9xep3cbj7la9tgsxl5bj87vzy8sk2d34kzwqdqgh9nry43nqqus12l1stmiv184r8r3jcy8w43e8h1u1mzklldb5eytkuhayqik8l3ns04hwt8sgacvw534be8sx26qrn5s1", 36); - private final transient File file; - private transient YamlConfiguration updateConfig; - private final transient Plugin plugin; - private final transient TreeMap<Version, VersionInfo> versions = new TreeMap<Version, VersionInfo>(); - - public UpdateFile(final Plugin plugin) - { - this.plugin = plugin; - final long lastUpdate = Long.parseLong(plugin.getConfig().getString("lastupdate", "0")); - file = new File(plugin.getDataFolder(), "update.yml"); - if (lastUpdate < System.currentTimeMillis() - 1000 * 60 * 60 * 6 || !file.exists()) - { - if (file.exists() && !file.delete()) - { - LOGGER.log(Level.SEVERE, "Could not delete file update.yml!"); - return; - } - if (!downloadFile() || !checkFile()) - { - LOGGER.log(Level.SEVERE, "Could not download and verify file update.yml!"); - return; - } - } - try - { - readVersions(); - } - catch (Exception ex) - { - LOGGER.log(Level.SEVERE, "Could not load update.yml!"); - return; - } - } - - private boolean downloadFile() - { - GetFile getFile; - try - { - getFile = new GetFile(UPDATE_URL); - getFile.saveTo(file); - plugin.getConfig().set("lastupdate", System.currentTimeMillis()); - plugin.getConfig().save(new File(plugin.getDataFolder(), "config.yml")); - return true; - } - catch (IOException ex) - { - LOGGER.log(Level.SEVERE, "Error while downloading update.yml", ex); - return false; - } - } - - private boolean checkFile() - { - BufferedInputStream bis = null; - try - { - bis = new BufferedInputStream(new FileInputStream(file)); - if (bis.read() != '#') - { - throw new IOException("File has to start with #"); - } - final StringBuilder length = new StringBuilder(); - final StringBuilder signature = new StringBuilder(); - boolean isSignature = false; - do - { - final int cur = bis.read(); - if (cur == -1) - { - break; - } - if (cur == ':') - { - isSignature = true; - } - else if (cur == '\n') - { - break; - } - else if ((cur >= '0' && cur <= '9') - || (cur >= 'a' && cur <= 'z')) - { - if (isSignature) - { - signature.append((char)cur); - } - else - { - length.append((char)cur); - } - } - else - { - throw new IOException("Illegal character in signature!"); - } - } - while (true); - if (length.length() == 0 || signature.length() == 0) - { - throw new IOException("Broken signature!"); - } - final int sigLength = new BigInteger(length.toString(), 36).intValue(); - if (sigLength < 0 || sigLength > 2048) - { - throw new IOException("Invalid signature length!"); - } - final byte[] sigBytes = new BigInteger(signature.toString(), 36).toByteArray(); - if (sigLength < sigBytes.length) - { - throw new IOException("Length is less then available bytes."); - } - byte[] realBytes; - if (sigLength == sigBytes.length) - { - realBytes = sigBytes; - } - else - { - realBytes = new byte[sigLength]; - System.arraycopy(sigBytes, 0, realBytes, sigLength - sigBytes.length, sigBytes.length); - } - final X509EncodedKeySpec pubKeySpec = new X509EncodedKeySpec(PUBLIC_KEY.toByteArray()); - final KeyFactory keyFactory = KeyFactory.getInstance("RSA"); - final PublicKey pubKey = keyFactory.generatePublic(pubKeySpec); - final Signature rsa = Signature.getInstance("SHA256withRSA"); - rsa.initVerify(pubKey); - final byte[] buffer = new byte[2048]; - int readLength; - do - { - readLength = bis.read(buffer); - if (readLength >= 0) - { - rsa.update(buffer, 0, readLength); - } - } - while (readLength >= 0); - return rsa.verify(realBytes); - } - catch (Exception ex) - { - LOGGER.log(Level.SEVERE, ex.getMessage(), ex); - } - finally - { - try - { - if (bis != null) - { - bis.close(); - } - } - catch (IOException ex) - { - LOGGER.log(Level.SEVERE, ex.getMessage(), ex); - } - } - return false; - } - - private void readVersions() throws Exception - { - updateConfig = new YamlConfiguration(); - updateConfig.load(file); - versions.clear(); - for (String versionString : updateConfig.getKeys(false)) - { - final Version version = new Version(versionString); - final VersionInfo info = new VersionInfo(updateConfig, versionString); - versions.put(version, info); - } - } - - public Map<Version, VersionInfo> getVersions() - { - return Collections.unmodifiableMap(versions.descendingMap()); - } -} |