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/* */ package NET.worlds.network;
/* */
/* */ import java.io.EOFException;
/* */ import java.io.FilterInputStream;
/* */ import java.io.IOException;
/* */ import java.io.InputStream;
/* */ import java.io.UTFDataFormatException;
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */ public class ServerInputStream
/* */ extends FilterInputStream
/* */ {
/* */ private int _packetSize;
/* */ private int _version;
/* */
/* */ public ServerInputStream(InputStream in)
/* */ {
/* 70 */ super(in);
/* 71 */ assert (in != null);
/* 72 */ this._packetSize = 0;
/* 73 */ this._version = 24;
/* */ }
/* */
/* */ public ServerInputStream(InputStream in, int vers) {
/* 77 */ super(in);
/* 78 */ assert (in != null);
/* 79 */ this._packetSize = 0;
/* 80 */ this._version = vers;
/* */ }
/* */
/* */ public void setVersion(int vers) {
/* 84 */ this._version = vers;
/* */ }
/* */
/* */ public int getVersion() {
/* 88 */ return this._version;
/* */ }
/* */
/* */ public void readPacketSize() throws IOException {
/* 92 */ assert (this._packetSize == 0);
/* 93 */ this._packetSize = 1;
/* 94 */ this._packetSize = (readUnsignedByte() - 1);
/* */
/* */
/* 97 */ if (((this._packetSize & 0x80) != 0) && (getVersion() > 24)) {
/* 98 */ this._packetSize =
/* 99 */ ((this._packetSize & 0x80) * 256 + readUnsignedByte() - 1);
/* */ }
/* */ }
/* */
/* */ public boolean isEmpty() {
/* 104 */ return this._packetSize == 0;
/* */ }
/* */
/* */
/* */
/* */
/* */
/* */ public int bytesLeft()
/* */ {
/* 113 */ return this._packetSize;
/* */ }
/* */
/* */
/* */
/* */
/* */
/* */
/* */ public final int read(byte[] b)
/* */ throws IOException
/* */ {
/* 124 */ assert (this._packetSize >= b.length);
/* 125 */ if (b.length == 0)
/* 126 */ return 0;
/* 127 */ int bytesRead = this.in.read(b, 0, b.length);
/* 128 */ if (bytesRead < 0)
/* 129 */ throw new EOFException();
/* 130 */ this._packetSize -= bytesRead;
/* 131 */ return bytesRead;
/* */ }
/* */
/* */
/* */
/* */
/* */
/* */
/* */ public final int read(byte[] b, int off, int len)
/* */ throws IOException
/* */ {
/* 142 */ assert (this._packetSize >= len);
/* 143 */ int bytesRead = this.in.read(b, off, len);
/* 144 */ if (bytesRead < 0)
/* 145 */ throw new EOFException();
/* 146 */ this._packetSize -= bytesRead;
/* 147 */ return bytesRead;
/* */ }
/* */
/* */
/* */
/* */
/* */ public final void readFully(byte[] b)
/* */ throws IOException
/* */ {
/* 156 */ assert (this._packetSize >= b.length);
/* 157 */ readFully(b, 0, b.length);
/* */ }
/* */
/* */
/* */
/* */
/* */
/* */ public final void readFully(byte[] b, int off, int len)
/* */ throws IOException
/* */ {
/* 167 */ assert (this._packetSize >= len);
/* 168 */ this._packetSize -= len;
/* 169 */ InputStream in = this.in;
/* 170 */ while (len > 0) {
/* 171 */ int bytesRead = in.read(b, off, len);
/* 172 */ if (bytesRead < 0)
/* 173 */ throw new EOFException();
/* 174 */ len -= bytesRead;
/* 175 */ off += bytesRead;
/* */ }
/* */ }
/* */
/* */
/* */ public void skipBytes(int n)
/* */ throws IOException
/* */ {
/* 183 */ assert (this._packetSize >= n);
/* 184 */ this._packetSize -= n;
/* 185 */ InputStream in = this.in;
/* 186 */ while (n > 0) {
/* 187 */ int bytesSkipped = (int)in.skip(n);
/* 188 */ if (bytesSkipped < 0)
/* 189 */ throw new EOFException();
/* 190 */ n -= bytesSkipped;
/* */ }
/* */ }
/* */
/* */
/* */
/* */
/* */
/* */ public final byte readByte()
/* */ throws IOException
/* */ {
/* 201 */ if (this._packetSize < 1)
/* 202 */ throw new IOException();
/* 203 */ int ch = this.in.read();
/* 204 */ if (ch < 0)
/* 205 */ throw new EOFException();
/* 206 */ this._packetSize -= 1;
/* 207 */ return (byte)ch;
/* */ }
/* */
/* */
/* */
/* */
/* */
/* */ public final int readUnsignedByte()
/* */ throws IOException
/* */ {
/* 217 */ if (this._packetSize < 1)
/* 218 */ throw new IOException();
/* 219 */ int ch = this.in.read();
/* 220 */ if (ch < 0)
/* 221 */ throw new EOFException();
/* 222 */ this._packetSize -= 1;
/* 223 */ return ch;
/* */ }
/* */
/* */
/* */
/* */
/* */ public final short readShort()
/* */ throws IOException
/* */ {
/* 232 */ assert (this._packetSize >= 2);
/* 233 */ InputStream in = this.in;
/* 234 */ int ch1 = in.read();
/* 235 */ int ch2 = in.read();
/* 236 */ if ((ch1 | ch2) < 0)
/* 237 */ throw new EOFException();
/* 238 */ this._packetSize -= 2;
/* 239 */ return (short)((ch1 << 8) + (ch2 << 0));
/* */ }
/* */
/* */
/* */
/* */
/* */ public final int readUnsignedShort()
/* */ throws IOException
/* */ {
/* 248 */ assert (this._packetSize >= 2);
/* 249 */ InputStream in = this.in;
/* 250 */ int ch1 = in.read();
/* 251 */ int ch2 = in.read();
/* 252 */ if ((ch1 | ch2) < 0)
/* 253 */ throw new EOFException();
/* 254 */ this._packetSize -= 2;
/* 255 */ return (ch1 << 8) + (ch2 << 0);
/* */ }
/* */
/* */
/* */
/* */
/* */
/* */
/* */
/* */ public String readUTF()
/* */ throws IOException
/* */ {
/* 267 */ if (this._packetSize < 1) {
/* 268 */ throw new IOException();
/* */ }
/* 270 */ int utflen = readUnsignedByte();
/* */
/* 272 */ if (this._packetSize < utflen) {
/* 273 */ throw new UTFDataFormatException();
/* */ }
/* */
/* */
/* 277 */ char[] str = new char[utflen];
/* 278 */ int count = 0;
/* 279 */ int strlen = 0;
/* 280 */ while (count < utflen) {
/* 281 */ int c = readUnsignedByte();
/* */
/* 283 */ switch (c >> 4)
/* */ {
/* */ case 0:
/* */ case 1:
/* */ case 2:
/* */ case 3:
/* */ case 4:
/* */ case 5:
/* */ case 6:
/* */ case 7:
/* 293 */ count++;
/* 294 */ str[(strlen++)] = ((char)c);
/* 295 */ break;
/* */
/* */ case 12:
/* */ case 13:
/* 299 */ count += 2;
/* 300 */ if (count > utflen)
/* 301 */ throw new UTFDataFormatException();
/* 302 */ int char2 = readUnsignedByte();
/* 303 */ if ((char2 & 0xC0) != 128)
/* 304 */ throw new UTFDataFormatException();
/* 305 */ str[(strlen++)] = ((char)((c & 0x1F) << 6 | char2 & 0x3F));
/* 306 */ break;
/* */
/* */ case 14:
/* 309 */ count += 3;
/* 310 */ if (count > utflen)
/* 311 */ throw new UTFDataFormatException();
/* 312 */ int char2 = readUnsignedByte();
/* 313 */ int char3 = readUnsignedByte();
/* 314 */ if (((char2 & 0xC0) != 128) || ((char3 & 0xC0) != 128))
/* 315 */ throw new UTFDataFormatException();
/* 316 */ str[(strlen++)] =
/* 317 */ ((char)((c & 0xF) << 12 | (char2 & 0x3F) << 6 | (char3 & 0x3F) << 0));
/* 318 */ break;
/* */ case 8: case 9: case 10:
/* */ case 11: default:
/* 321 */ throw new UTFDataFormatException();
/* */ }
/* */ }
/* 324 */ return new String(str, 0, strlen);
/* */ }
/* */ }
/* Location: C:\Program Files (x86)\Worlds Inc\WorldsPlayer - Win7\lib\worlds.jar!\NET\worlds\network\ServerInputStream.class
* Java compiler version: 6 (50.0)
* JD-Core Version: 0.7.1
*/
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