Examples with UTFDataFormatException java.io.UTFDataFormatException used on opensource projects

Example 16 with UTFDataFormatException

use of java.io.UTFDataFormatException in project TinyKeePass by sorz.

the class SecureStringStorage method get.

@Nullable
public List<String> get(Cipher cipher) throws BadPaddingException, IllegalBlockSizeException {
    String ciphertext = preferences.getString(PREF_VALUE_NAME, null);
    if (ciphertext == null)
        return null;
    byte[] cleartext = cipher.doFinal(Base64.decode(ciphertext, Base64.DEFAULT));
    DataInputStream input = new DataInputStream(new ByteArrayInputStream(cleartext));
    List<String> strings = new ArrayList<>();
    try {
        // noinspection InfiniteLoopStatement
        while (true) strings.add(input.readUTF());
    } catch (EOFException e) {
        return strings;
    } catch (UTFDataFormatException e) {
        Log.e(TAG, "fail to parse string", e);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    return null;
}

Example 17 with UTFDataFormatException

use of java.io.UTFDataFormatException in project cassandra by apache.

the class UnbufferedDataOutputStreamPlus method writeUTF.

/**
     * Writes the specified String out in UTF format to the provided DataOutput
     *
     * @param str the String to be written in UTF format.
     * @param out the DataOutput to write the UTF encoded string to
     * @throws IOException If an error occurs attempting to write to this
     *                     DataOutputStream.
     */
public static void writeUTF(String str, DataOutput out) throws IOException {
    int length = str.length();
    if (length == 0) {
        out.write(zeroBytes);
        return;
    }
    int utfCount = 0;
    int maxSize = 2;
    for (int i = 0; i < length; i++) {
        int ch = str.charAt(i);
        if ((ch > 0) & (ch <= 127))
            utfCount += 1;
        else if (ch <= 2047)
            utfCount += 2;
        else
            utfCount += maxSize = 3;
    }
    if (utfCount > 65535)
        //$NON-NLS-1$
        throw new UTFDataFormatException();
    byte[] utfBytes = retrieveTemporaryBuffer(utfCount + 2);
    int bufferLength = utfBytes.length;
    if (utfCount == length) {
        utfBytes[0] = (byte) (utfCount >> 8);
        utfBytes[1] = (byte) utfCount;
        int firstIndex = 2;
        for (int offset = 0; offset < length; offset += bufferLength) {
            int runLength = Math.min(bufferLength - firstIndex, length - offset) + firstIndex;
            offset -= firstIndex;
            for (int i = firstIndex; i < runLength; i++) utfBytes[i] = (byte) str.charAt(offset + i);
            out.write(utfBytes, 0, runLength);
            firstIndex = 0;
        }
    } else {
        int utfIndex = 2;
        int offset = 0;
        utfBytes[0] = (byte) (utfCount >> 8);
        utfBytes[1] = (byte) utfCount;
        while (length > 0) {
            int charRunLength = (utfBytes.length - utfIndex) / maxSize;
            if (charRunLength < 128 && charRunLength < length) {
                out.write(utfBytes, 0, utfIndex);
                utfIndex = 0;
            }
            if (charRunLength > length)
                charRunLength = length;
            for (int i = 0; i < charRunLength; i++) {
                char ch = str.charAt(offset + i);
                if ((ch > 0) && (ch <= 127)) {
                    utfBytes[utfIndex++] = (byte) ch;
                } else if (ch <= 2047) {
                    utfBytes[utfIndex++] = (byte) (0xc0 | (0x1f & (ch >> 6)));
                    utfBytes[utfIndex++] = (byte) (0x80 | (0x3f & ch));
                } else {
                    utfBytes[utfIndex++] = (byte) (0xe0 | (0x0f & (ch >> 12)));
                    utfBytes[utfIndex++] = (byte) (0x80 | (0x3f & (ch >> 6)));
                    utfBytes[utfIndex++] = (byte) (0x80 | (0x3f & ch));
                }
            }
            offset += charRunLength;
            length -= charRunLength;
        }
        out.write(utfBytes, 0, utfIndex);
    }
}

Example 18 with UTFDataFormatException

use of java.io.UTFDataFormatException in project atlas by alibaba.

the class Mutf8 method decode.

/**
     * Decodes bytes from {@code in} into {@code out} until a delimiter 0x00 is
     * encountered. Returns a new string containing the decoded characters.
     */
public static String decode(ByteInput in, char[] out) throws UTFDataFormatException {
    int s = 0;
    while (true) {
        char a = (char) (in.readByte() & 0xff);
        if (a == 0) {
            return new String(out, 0, s);
        }
        out[s] = a;
        if (a < '€') {
            s++;
        } else if ((a & 0xe0) == 0xc0) {
            int b = in.readByte() & 0xff;
            if ((b & 0xC0) != 0x80) {
                throw new UTFDataFormatException("bad second byte");
            }
            out[s++] = (char) (((a & 0x1F) << 6) | (b & 0x3F));
        } else if ((a & 0xf0) == 0xe0) {
            int b = in.readByte() & 0xff;
            int c = in.readByte() & 0xff;
            if (((b & 0xC0) != 0x80) || ((c & 0xC0) != 0x80)) {
                throw new UTFDataFormatException("bad second or third byte");
            }
            out[s++] = (char) (((a & 0x0F) << 12) | ((b & 0x3F) << 6) | (c & 0x3F));
        } else {
            throw new UTFDataFormatException("bad byte");
        }
    }
}

Example 19 with UTFDataFormatException

use of java.io.UTFDataFormatException in project Cloud9 by lintool.

the class WritableComparatorUtils method readUTF.

public static String readUTF(byte[] bytes, int s) {
    try {
        int utflen = WritableComparator.readUnsignedShort(bytes, s);
        byte[] bytearr = new byte[utflen];
        char[] chararr = new char[utflen];
        int c, char2, char3;
        int count = 0;
        int chararr_count = 0;
        System.arraycopy(bytes, s + 2, bytearr, 0, utflen);
        while (count < utflen) {
            c = (int) bytearr[count] & 0xff;
            if (c > 127)
                break;
            count++;
            chararr[chararr_count++] = (char) c;
        }
        while (count < utflen) {
            c = (int) bytearr[count] & 0xff;
            switch(c >> 4) {
                case 0:
                case 1:
                case 2:
                case 3:
                case 4:
                case 5:
                case 6:
                case 7:
                    /* 0xxxxxxx */
                    count++;
                    chararr[chararr_count++] = (char) c;
                    break;
                case 12:
                case 13:
                    /* 110x xxxx 10xx xxxx */
                    count += 2;
                    if (count > utflen)
                        throw new UTFDataFormatException("malformed input: partial character at end");
                    char2 = (int) bytearr[count - 1];
                    if ((char2 & 0xC0) != 0x80)
                        throw new UTFDataFormatException("malformed input around byte " + count);
                    chararr[chararr_count++] = (char) (((c & 0x1F) << 6) | (char2 & 0x3F));
                    break;
                case 14:
                    /* 1110 xxxx 10xx xxxx 10xx xxxx */
                    count += 3;
                    if (count > utflen)
                        throw new UTFDataFormatException("malformed input: partial character at end");
                    char2 = (int) bytearr[count - 2];
                    char3 = (int) bytearr[count - 1];
                    if (((char2 & 0xC0) != 0x80) || ((char3 & 0xC0) != 0x80))
                        throw new UTFDataFormatException("malformed input around byte " + (count - 1));
                    chararr[chararr_count++] = (char) (((c & 0x0F) << 12) | ((char2 & 0x3F) << 6) | ((char3 & 0x3F) << 0));
                    break;
                default:
                    /* 10xx xxxx, 1111 xxxx */
                    throw new UTFDataFormatException("malformed input around byte " + count);
            }
        }
        // The number of chars produced may be less than utflen
        return new String(chararr, 0, chararr_count);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

Example 20 with UTFDataFormatException

use of java.io.UTFDataFormatException in project tinker by Tencent.

the class Mutf8 method decode.

/**
     * Decodes bytes from {@code in} into {@code out} until a delimiter 0x00 is
     * encountered. Returns a new string containing the decoded characters.
     */
public static String decode(ByteInput in, char[] out) throws UTFDataFormatException {
    int s = 0;
    while (true) {
        char a = (char) (in.readByte() & 0xff);
        if (a == 0) {
            return new String(out, 0, s);
        }
        out[s] = a;
        if (a < '€') {
            s++;
        } else if ((a & 0xe0) == 0xc0) {
            int b = in.readByte() & 0xff;
            if ((b & 0xC0) != 0x80) {
                throw new UTFDataFormatException("bad second byte");
            }
            out[s++] = (char) (((a & 0x1F) << 6) | (b & 0x3F));
        } else if ((a & 0xf0) == 0xe0) {
            int b = in.readByte() & 0xff;
            int c = in.readByte() & 0xff;
            if (((b & 0xC0) != 0x80) || ((c & 0xC0) != 0x80)) {
                throw new UTFDataFormatException("bad second or third byte");
            }
            out[s++] = (char) (((a & 0x0F) << 12) | ((b & 0x3F) << 6) | (c & 0x3F));
        } else {
            throw new UTFDataFormatException("bad byte");
        }
    }
}