zhangyuan
3 years ago
13 changed files with 1973 additions and 4 deletions
@ -0,0 +1,43 @@ |
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package com.epmet.plugin.power.config; |
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import org.springframework.boot.context.properties.ConfigurationProperties; |
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import org.springframework.context.annotation.Configuration; |
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/** |
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* 海康设备参数 |
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* |
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* @author zhy |
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* @date 2022/5/20 14:59 |
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*/ |
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@Configuration |
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@ConfigurationProperties(prefix = "dh.cloud") |
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public class DhCloudProperties { |
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/** |
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* 应用ID |
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*/ |
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private String url; |
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/** |
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* 应用KEY |
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*/ |
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private String loginName; |
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public String getUrl() { |
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return url; |
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} |
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public void setUrl(String url) { |
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this.url = url; |
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} |
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public String getLoginName() { |
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return loginName; |
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} |
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public void setLoginName(String loginName) { |
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this.loginName = loginName; |
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} |
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} |
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@ -0,0 +1,768 @@ |
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package com.epmet.plugin.power.modules.visit.utils; |
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import java.math.BigInteger; |
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/** |
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* Provides Base64 encoding and decoding as defined by <a href="http://www.ietf.org/rfc/rfc2045.txt">RFC 2045</a>. |
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* |
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* <p> |
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* This class implements section <cite>6.8. Base64 Content-Transfer-Encoding</cite> from RFC 2045 <cite>Multipurpose |
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* Internet Mail Extensions (MIME) Part One: Format of Internet Message Bodies</cite> by Freed and Borenstein. |
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* </p> |
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* <p> |
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* The class can be parameterized in the following manner with various constructors: |
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* </p> |
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* <ul> |
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* <li>URL-safe mode: Default off.</li> |
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* <li>Line length: Default 76. Line length that aren't multiples of 4 will still essentially end up being multiples of |
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* 4 in the encoded data. |
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* <li>Line separator: Default is CRLF ("\r\n")</li> |
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* </ul> |
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* <p> |
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* The URL-safe parameter is only applied to encode operations. Decoding seamlessly handles both modes. |
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* </p> |
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* <p> |
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* Since this class operates directly on byte streams, and not character streams, it is hard-coded to only |
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* encode/decode character encodings which are compatible with the lower 127 ASCII chart (ISO-8859-1, Windows-1252, |
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* UTF-8, etc). |
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* </p> |
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* <p> |
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* This class is thread-safe. |
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* </p> |
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* |
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* @see <a href="http://www.ietf.org/rfc/rfc2045.txt">RFC 2045</a> |
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* @since 1.0 |
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* @version $Id: Base64.java 1635986 2014-11-01 16:27:52Z tn $ |
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*/ |
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public class Base64Util extends BaseNCodec { |
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/** |
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* BASE32 characters are 6 bits in length. |
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* They are formed by taking a block of 3 octets to form a 24-bit string, |
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* which is converted into 4 BASE64 characters. |
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*/ |
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private static final int BITS_PER_ENCODED_BYTE = 6; |
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private static final int BYTES_PER_UNENCODED_BLOCK = 3; |
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private static final int BYTES_PER_ENCODED_BLOCK = 4; |
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/** |
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* Chunk separator per RFC 2045 section 2.1. |
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* |
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* <p> |
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* N.B. The next major release may break compatibility and make this field private. |
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* </p> |
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* |
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* @see <a href="http://www.ietf.org/rfc/rfc2045.txt">RFC 2045 section 2.1</a> |
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*/ |
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static final byte[] CHUNK_SEPARATOR = {'\r', '\n'}; |
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/** |
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* This array is a lookup table that translates 6-bit positive integer index values into their "Base64 Alphabet" |
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* equivalents as specified in Table 1 of RFC 2045. |
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* |
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* Thanks to "commons" project in ws.apache.org for this code. |
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* http://svn.apache.org/repos/asf/webservices/commons/trunk/modules/util/
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*/ |
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private static final byte[] STANDARD_ENCODE_TABLE = { |
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'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', |
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'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', |
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'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', |
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'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', |
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/' |
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}; |
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/** |
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* This is a copy of the STANDARD_ENCODE_TABLE above, but with + and / |
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* changed to - and _ to make the encoded Base64 results more URL-SAFE. |
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* This table is only used when the Base64's mode is set to URL-SAFE. |
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*/ |
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private static final byte[] URL_SAFE_ENCODE_TABLE = { |
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'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', |
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'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', |
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'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', |
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'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', |
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '-', '_' |
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}; |
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/** |
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* This array is a lookup table that translates Unicode characters drawn from the "Base64 Alphabet" (as specified |
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* in Table 1 of RFC 2045) into their 6-bit positive integer equivalents. Characters that are not in the Base64 |
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* alphabet but fall within the bounds of the array are translated to -1. |
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* |
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* Note: '+' and '-' both decode to 62. '/' and '_' both decode to 63. This means decoder seamlessly handles both |
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* URL_SAFE and STANDARD base64. (The encoder, on the other hand, needs to know ahead of time what to emit). |
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* |
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* Thanks to "commons" project in ws.apache.org for this code. |
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* http://svn.apache.org/repos/asf/webservices/commons/trunk/modules/util/
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*/ |
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private static final byte[] DECODE_TABLE = { |
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
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-1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, 62, -1, 63, 52, 53, 54, |
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55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, |
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5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, |
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24, 25, -1, -1, -1, -1, 63, -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, |
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35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51 |
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}; |
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/** |
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* Base64 uses 6-bit fields. |
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*/ |
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/** Mask used to extract 6 bits, used when encoding */ |
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private static final int MASK_6BITS = 0x3f; |
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// The static final fields above are used for the original static byte[] methods on Base64.
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// The private member fields below are used with the new streaming approach, which requires
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// some state be preserved between calls of encode() and decode().
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/** |
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* Encode table to use: either STANDARD or URL_SAFE. Note: the DECODE_TABLE above remains static because it is able |
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* to decode both STANDARD and URL_SAFE streams, but the encodeTable must be a member variable so we can switch |
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* between the two modes. |
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*/ |
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private final byte[] encodeTable; |
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// Only one decode table currently; keep for consistency with Base32 code
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private final byte[] decodeTable = DECODE_TABLE; |
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/** |
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* Line separator for encoding. Not used when decoding. Only used if lineLength > 0. |
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*/ |
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private final byte[] lineSeparator; |
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/** |
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* Convenience variable to help us determine when our buffer is going to run out of room and needs resizing. |
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* <code>decodeSize = 3 + lineSeparator.length;</code> |
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*/ |
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private final int decodeSize; |
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/** |
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* Convenience variable to help us determine when our buffer is going to run out of room and needs resizing. |
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* <code>encodeSize = 4 + lineSeparator.length;</code> |
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*/ |
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private final int encodeSize; |
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/** |
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* Creates a Base64 codec used for decoding (all modes) and encoding in URL-unsafe mode. |
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* <p> |
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* When encoding the line length is 0 (no chunking), and the encoding table is STANDARD_ENCODE_TABLE. |
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* </p> |
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* |
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* <p> |
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* When decoding all variants are supported. |
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* </p> |
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*/ |
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public Base64Util() { |
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this(0); |
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} |
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/** |
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* Creates a Base64 codec used for decoding (all modes) and encoding in the given URL-safe mode. |
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* <p> |
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* When encoding the line length is 76, the line separator is CRLF, and the encoding table is STANDARD_ENCODE_TABLE. |
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* </p> |
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* |
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* <p> |
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* When decoding all variants are supported. |
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* </p> |
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* |
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* @param urlSafe |
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* if <code>true</code>, URL-safe encoding is used. In most cases this should be set to |
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* <code>false</code>. |
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* @since 1.4 |
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*/ |
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public Base64Util(final boolean urlSafe) { |
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this(MIME_CHUNK_SIZE, CHUNK_SEPARATOR, urlSafe); |
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} |
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/** |
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* Creates a Base64 codec used for decoding (all modes) and encoding in URL-unsafe mode. |
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* <p> |
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* When encoding the line length is given in the constructor, the line separator is CRLF, and the encoding table is |
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* STANDARD_ENCODE_TABLE. |
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* </p> |
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* <p> |
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* Line lengths that aren't multiples of 4 will still essentially end up being multiples of 4 in the encoded data. |
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* </p> |
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* <p> |
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* When decoding all variants are supported. |
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* </p> |
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* |
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* @param lineLength |
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* Each line of encoded data will be at most of the given length (rounded down to nearest multiple of |
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* 4). If lineLength <= 0, then the output will not be divided into lines (chunks). Ignored when |
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* decoding. |
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* @since 1.4 |
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*/ |
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public Base64Util(final int lineLength) { |
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this(lineLength, CHUNK_SEPARATOR); |
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} |
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/** |
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* Creates a Base64 codec used for decoding (all modes) and encoding in URL-unsafe mode. |
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* <p> |
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* When encoding the line length and line separator are given in the constructor, and the encoding table is |
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* STANDARD_ENCODE_TABLE. |
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* </p> |
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* <p> |
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* Line lengths that aren't multiples of 4 will still essentially end up being multiples of 4 in the encoded data. |
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* </p> |
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* <p> |
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* When decoding all variants are supported. |
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* </p> |
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* |
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* @param lineLength |
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* Each line of encoded data will be at most of the given length (rounded down to nearest multiple of |
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* 4). If lineLength <= 0, then the output will not be divided into lines (chunks). Ignored when |
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* decoding. |
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* @param lineSeparator |
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* Each line of encoded data will end with this sequence of bytes. |
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* @throws IllegalArgumentException |
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* Thrown when the provided lineSeparator included some base64 characters. |
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* @since 1.4 |
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*/ |
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public Base64Util(final int lineLength, final byte[] lineSeparator) { |
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this(lineLength, lineSeparator, false); |
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} |
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/** |
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* Creates a Base64 codec used for decoding (all modes) and encoding in URL-unsafe mode. |
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* <p> |
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* When encoding the line length and line separator are given in the constructor, and the encoding table is |
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* STANDARD_ENCODE_TABLE. |
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* </p> |
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* <p> |
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* Line lengths that aren't multiples of 4 will still essentially end up being multiples of 4 in the encoded data. |
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* </p> |
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* <p> |
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* When decoding all variants are supported. |
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* </p> |
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* |
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* @param lineLength |
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* Each line of encoded data will be at most of the given length (rounded down to nearest multiple of |
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* 4). If lineLength <= 0, then the output will not be divided into lines (chunks). Ignored when |
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* decoding. |
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* @param lineSeparator |
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* Each line of encoded data will end with this sequence of bytes. |
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* @param urlSafe |
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* Instead of emitting '+' and '/' we emit '-' and '_' respectively. urlSafe is only applied to encode |
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* operations. Decoding seamlessly handles both modes. |
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* <b>Note: no padding is added when using the URL-safe alphabet.</b> |
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* @throws IllegalArgumentException |
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* The provided lineSeparator included some base64 characters. That's not going to work! |
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* @since 1.4 |
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*/ |
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public Base64Util(final int lineLength, final byte[] lineSeparator, final boolean urlSafe) { |
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super(BYTES_PER_UNENCODED_BLOCK, BYTES_PER_ENCODED_BLOCK, |
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lineLength, |
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lineSeparator == null ? 0 : lineSeparator.length); |
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// TODO could be simplified if there is no requirement to reject invalid line sep when length <=0
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// @see test case Base64Test.testConstructors()
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if (lineSeparator != null) { |
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if (containsAlphabetOrPad(lineSeparator)) { |
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final String sep = newStringUtf8(lineSeparator); |
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throw new IllegalArgumentException("lineSeparator must not contain base64 characters: [" + sep + "]"); |
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} |
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if (lineLength > 0){ // null line-sep forces no chunking rather than throwing IAE
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this.encodeSize = BYTES_PER_ENCODED_BLOCK + lineSeparator.length; |
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this.lineSeparator = new byte[lineSeparator.length]; |
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System.arraycopy(lineSeparator, 0, this.lineSeparator, 0, lineSeparator.length); |
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} else { |
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this.encodeSize = BYTES_PER_ENCODED_BLOCK; |
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this.lineSeparator = null; |
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} |
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} else { |
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this.encodeSize = BYTES_PER_ENCODED_BLOCK; |
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this.lineSeparator = null; |
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} |
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this.decodeSize = this.encodeSize - 1; |
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this.encodeTable = urlSafe ? URL_SAFE_ENCODE_TABLE : STANDARD_ENCODE_TABLE; |
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} |
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/** |
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* Returns our current encode mode. True if we're URL-SAFE, false otherwise. |
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* |
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* @return true if we're in URL-SAFE mode, false otherwise. |
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* @since 1.4 |
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*/ |
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public boolean isUrlSafe() { |
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return this.encodeTable == URL_SAFE_ENCODE_TABLE; |
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} |
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/** |
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* <p> |
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* Encodes all of the provided data, starting at inPos, for inAvail bytes. Must be called at least twice: once with |
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* the data to encode, and once with inAvail set to "-1" to alert encoder that EOF has been reached, to flush last |
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* remaining bytes (if not multiple of 3). |
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* </p> |
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* <p><b>Note: no padding is added when encoding using the URL-safe alphabet.</b></p> |
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* <p> |
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* Thanks to "commons" project in ws.apache.org for the bitwise operations, and general approach. |
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* http://svn.apache.org/repos/asf/webservices/commons/trunk/modules/util/
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* </p> |
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* |
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* @param in |
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* byte[] array of binary data to base64 encode. |
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* @param inPos |
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* Position to start reading data from. |
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* @param inAvail |
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* Amount of bytes available from input for encoding. |
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* @param context |
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* the context to be used |
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*/ |
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@Override |
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void encode(final byte[] in, int inPos, final int inAvail, final Context context) { |
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if (context.eof) { |
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return; |
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} |
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// inAvail < 0 is how we're informed of EOF in the underlying data we're
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// encoding.
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if (inAvail < 0) { |
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context.eof = true; |
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if (0 == context.modulus && lineLength == 0) { |
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return; // no leftovers to process and not using chunking
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} |
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final byte[] buffer = ensureBufferSize(encodeSize, context); |
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final int savedPos = context.pos; |
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switch (context.modulus) { // 0-2
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case 0 : // nothing to do here
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break; |
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case 1 : // 8 bits = 6 + 2
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// top 6 bits:
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buffer[context.pos++] = encodeTable[(context.ibitWorkArea >> 2) & MASK_6BITS]; |
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// remaining 2:
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buffer[context.pos++] = encodeTable[(context.ibitWorkArea << 4) & MASK_6BITS]; |
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// URL-SAFE skips the padding to further reduce size.
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if (encodeTable == STANDARD_ENCODE_TABLE) { |
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buffer[context.pos++] = pad; |
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buffer[context.pos++] = pad; |
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} |
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break; |
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case 2 : // 16 bits = 6 + 6 + 4
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buffer[context.pos++] = encodeTable[(context.ibitWorkArea >> 10) & MASK_6BITS]; |
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buffer[context.pos++] = encodeTable[(context.ibitWorkArea >> 4) & MASK_6BITS]; |
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buffer[context.pos++] = encodeTable[(context.ibitWorkArea << 2) & MASK_6BITS]; |
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// URL-SAFE skips the padding to further reduce size.
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if (encodeTable == STANDARD_ENCODE_TABLE) { |
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buffer[context.pos++] = pad; |
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} |
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break; |
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default: |
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throw new IllegalStateException("Impossible modulus "+context.modulus); |
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} |
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context.currentLinePos += context.pos - savedPos; // keep track of current line position
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// if currentPos == 0 we are at the start of a line, so don't add CRLF
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if (lineLength > 0 && context.currentLinePos > 0) { |
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System.arraycopy(lineSeparator, 0, buffer, context.pos, lineSeparator.length); |
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context.pos += lineSeparator.length; |
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} |
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} else { |
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for (int i = 0; i < inAvail; i++) { |
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final byte[] buffer = ensureBufferSize(encodeSize, context); |
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context.modulus = (context.modulus+1) % BYTES_PER_UNENCODED_BLOCK; |
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int b = in[inPos++]; |
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if (b < 0) { |
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b += 256; |
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} |
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context.ibitWorkArea = (context.ibitWorkArea << 8) + b; // BITS_PER_BYTE
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if (0 == context.modulus) { // 3 bytes = 24 bits = 4 * 6 bits to extract
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buffer[context.pos++] = encodeTable[(context.ibitWorkArea >> 18) & MASK_6BITS]; |
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buffer[context.pos++] = encodeTable[(context.ibitWorkArea >> 12) & MASK_6BITS]; |
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buffer[context.pos++] = encodeTable[(context.ibitWorkArea >> 6) & MASK_6BITS]; |
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buffer[context.pos++] = encodeTable[context.ibitWorkArea & MASK_6BITS]; |
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context.currentLinePos += BYTES_PER_ENCODED_BLOCK; |
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if (lineLength > 0 && lineLength <= context.currentLinePos) { |
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System.arraycopy(lineSeparator, 0, buffer, context.pos, lineSeparator.length); |
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context.pos += lineSeparator.length; |
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context.currentLinePos = 0; |
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} |
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} |
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} |
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} |
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} |
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/** |
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* <p> |
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* Decodes all of the provided data, starting at inPos, for inAvail bytes. Should be called at least twice: once |
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* with the data to decode, and once with inAvail set to "-1" to alert decoder that EOF has been reached. The "-1" |
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* call is not necessary when decoding, but it doesn't hurt, either. |
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* </p> |
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* <p> |
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* Ignores all non-base64 characters. This is how chunked (e.g. 76 character) data is handled, since CR and LF are |
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* silently ignored, but has implications for other bytes, too. This method subscribes to the garbage-in, |
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* garbage-out philosophy: it will not check the provided data for validity. |
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* </p> |
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* <p> |
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* Thanks to "commons" project in ws.apache.org for the bitwise operations, and general approach. |
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* http://svn.apache.org/repos/asf/webservices/commons/trunk/modules/util/
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* </p> |
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* |
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* @param in |
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* byte[] array of ascii data to base64 decode. |
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* @param inPos |
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* Position to start reading data from. |
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* @param inAvail |
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* Amount of bytes available from input for encoding. |
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* @param context |
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* the context to be used |
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*/ |
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@Override |
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void decode(final byte[] in, int inPos, final int inAvail, final Context context) { |
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if (context.eof) { |
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return; |
|||
} |
|||
if (inAvail < 0) { |
|||
context.eof = true; |
|||
} |
|||
for (int i = 0; i < inAvail; i++) { |
|||
final byte[] buffer = ensureBufferSize(decodeSize, context); |
|||
final byte b = in[inPos++]; |
|||
if (b == pad) { |
|||
// We're done.
|
|||
context.eof = true; |
|||
break; |
|||
} else { |
|||
if (b >= 0 && b < DECODE_TABLE.length) { |
|||
final int result = DECODE_TABLE[b]; |
|||
if (result >= 0) { |
|||
context.modulus = (context.modulus+1) % BYTES_PER_ENCODED_BLOCK; |
|||
context.ibitWorkArea = (context.ibitWorkArea << BITS_PER_ENCODED_BYTE) + result; |
|||
if (context.modulus == 0) { |
|||
buffer[context.pos++] = (byte) ((context.ibitWorkArea >> 16) & MASK_8BITS); |
|||
buffer[context.pos++] = (byte) ((context.ibitWorkArea >> 8) & MASK_8BITS); |
|||
buffer[context.pos++] = (byte) (context.ibitWorkArea & MASK_8BITS); |
|||
} |
|||
} |
|||
} |
|||
} |
|||
} |
|||
|
|||
// Two forms of EOF as far as base64 decoder is concerned: actual
|
|||
// EOF (-1) and first time '=' character is encountered in stream.
|
|||
// This approach makes the '=' padding characters completely optional.
|
|||
if (context.eof && context.modulus != 0) { |
|||
final byte[] buffer = ensureBufferSize(decodeSize, context); |
|||
|
|||
// We have some spare bits remaining
|
|||
// Output all whole multiples of 8 bits and ignore the rest
|
|||
switch (context.modulus) { |
|||
// case 0 : // impossible, as excluded above
|
|||
case 1 : // 6 bits - ignore entirely
|
|||
// TODO not currently tested; perhaps it is impossible?
|
|||
break; |
|||
case 2 : // 12 bits = 8 + 4
|
|||
context.ibitWorkArea = context.ibitWorkArea >> 4; // dump the extra 4 bits
|
|||
buffer[context.pos++] = (byte) ((context.ibitWorkArea) & MASK_8BITS); |
|||
break; |
|||
case 3 : // 18 bits = 8 + 8 + 2
|
|||
context.ibitWorkArea = context.ibitWorkArea >> 2; // dump 2 bits
|
|||
buffer[context.pos++] = (byte) ((context.ibitWorkArea >> 8) & MASK_8BITS); |
|||
buffer[context.pos++] = (byte) ((context.ibitWorkArea) & MASK_8BITS); |
|||
break; |
|||
default: |
|||
throw new IllegalStateException("Impossible modulus "+context.modulus); |
|||
} |
|||
} |
|||
} |
|||
|
|||
/** |
|||
* Tests a given byte array to see if it contains only valid characters within the Base64 alphabet. Currently the |
|||
* method treats whitespace as valid. |
|||
* |
|||
* @param arrayOctet |
|||
* byte array to test |
|||
* @return <code>true</code> if all bytes are valid characters in the Base64 alphabet or if the byte array is empty; |
|||
* <code>false</code>, otherwise |
|||
* @deprecated 1.5 Use {@link #isBase64(byte[])}, will be removed in 2.0. |
|||
*/ |
|||
@Deprecated |
|||
public static boolean isArrayByteBase64(final byte[] arrayOctet) { |
|||
return isBase64(arrayOctet); |
|||
} |
|||
|
|||
/** |
|||
* Returns whether or not the <code>octet</code> is in the base 64 alphabet. |
|||
* |
|||
* @param octet |
|||
* The value to test |
|||
* @return <code>true</code> if the value is defined in the the base 64 alphabet, <code>false</code> otherwise. |
|||
* @since 1.4 |
|||
*/ |
|||
public static boolean isBase64(final byte octet) { |
|||
return octet == PAD_DEFAULT || (octet >= 0 && octet < DECODE_TABLE.length && DECODE_TABLE[octet] != -1); |
|||
} |
|||
|
|||
/** |
|||
* Tests a given String to see if it contains only valid characters within the Base64 alphabet. Currently the |
|||
* method treats whitespace as valid. |
|||
* |
|||
* @param base64 |
|||
* String to test |
|||
* @return <code>true</code> if all characters in the String are valid characters in the Base64 alphabet or if |
|||
* the String is empty; <code>false</code>, otherwise |
|||
* @since 1.5 |
|||
*/ |
|||
public static boolean isBase64(final String base64) { |
|||
return isBase64(getBytesUtf8(base64)); |
|||
} |
|||
|
|||
/** |
|||
* Tests a given byte array to see if it contains only valid characters within the Base64 alphabet. Currently the |
|||
* method treats whitespace as valid. |
|||
* |
|||
* @param arrayOctet |
|||
* byte array to test |
|||
* @return <code>true</code> if all bytes are valid characters in the Base64 alphabet or if the byte array is empty; |
|||
* <code>false</code>, otherwise |
|||
* @since 1.5 |
|||
*/ |
|||
public static boolean isBase64(final byte[] arrayOctet) { |
|||
for (int i = 0; i < arrayOctet.length; i++) { |
|||
if (!isBase64(arrayOctet[i]) && !isWhiteSpace(arrayOctet[i])) { |
|||
return false; |
|||
} |
|||
} |
|||
return true; |
|||
} |
|||
|
|||
/** |
|||
* Encodes binary data using the base64 algorithm but does not chunk the output. |
|||
* |
|||
* @param binaryData |
|||
* binary data to encode |
|||
* @return byte[] containing Base64 characters in their UTF-8 representation. |
|||
*/ |
|||
public static byte[] encodeBase64(final byte[] binaryData) { |
|||
return encodeBase64(binaryData, false); |
|||
} |
|||
|
|||
/** |
|||
* Encodes binary data using the base64 algorithm but does not chunk the output. |
|||
* |
|||
* NOTE: We changed the behaviour of this method from multi-line chunking (commons-codec-1.4) to |
|||
* single-line non-chunking (commons-codec-1.5). |
|||
* |
|||
* @param binaryData |
|||
* binary data to encode |
|||
* @return String containing Base64 characters. |
|||
* @since 1.4 (NOTE: 1.4 chunked the output, whereas 1.5 does not). |
|||
*/ |
|||
public static String encodeBase64String(final byte[] binaryData) { |
|||
return newStringUtf8(encodeBase64(binaryData, false)); |
|||
} |
|||
|
|||
/** |
|||
* Encodes binary data using a URL-safe variation of the base64 algorithm but does not chunk the output. The |
|||
* url-safe variation emits - and _ instead of + and / characters. |
|||
* <b>Note: no padding is added.</b> |
|||
* @param binaryData |
|||
* binary data to encode |
|||
* @return byte[] containing Base64 characters in their UTF-8 representation. |
|||
* @since 1.4 |
|||
*/ |
|||
public static byte[] encodeBase64URLSafe(final byte[] binaryData) { |
|||
return encodeBase64(binaryData, false, true); |
|||
} |
|||
|
|||
/** |
|||
* Encodes binary data using a URL-safe variation of the base64 algorithm but does not chunk the output. The |
|||
* url-safe variation emits - and _ instead of + and / characters. |
|||
* <b>Note: no padding is added.</b> |
|||
* @param binaryData |
|||
* binary data to encode |
|||
* @return String containing Base64 characters |
|||
* @since 1.4 |
|||
*/ |
|||
public static String encodeBase64URLSafeString(final byte[] binaryData) { |
|||
return newStringUtf8(encodeBase64(binaryData, false, true)); |
|||
} |
|||
|
|||
/** |
|||
* Encodes binary data using the base64 algorithm and chunks the encoded output into 76 character blocks |
|||
* |
|||
* @param binaryData |
|||
* binary data to encode |
|||
* @return Base64 characters chunked in 76 character blocks |
|||
*/ |
|||
public static byte[] encodeBase64Chunked(final byte[] binaryData) { |
|||
return encodeBase64(binaryData, true); |
|||
} |
|||
|
|||
/** |
|||
* Encodes binary data using the base64 algorithm, optionally chunking the output into 76 character blocks. |
|||
* |
|||
* @param binaryData |
|||
* Array containing binary data to encode. |
|||
* @param isChunked |
|||
* if <code>true</code> this encoder will chunk the base64 output into 76 character blocks |
|||
* @return Base64-encoded data. |
|||
* @throws IllegalArgumentException |
|||
* Thrown when the input array needs an output array bigger than {@link Integer#MAX_VALUE} |
|||
*/ |
|||
public static byte[] encodeBase64(final byte[] binaryData, final boolean isChunked) { |
|||
return encodeBase64(binaryData, isChunked, false); |
|||
} |
|||
|
|||
/** |
|||
* Encodes binary data using the base64 algorithm, optionally chunking the output into 76 character blocks. |
|||
* |
|||
* @param binaryData |
|||
* Array containing binary data to encode. |
|||
* @param isChunked |
|||
* if <code>true</code> this encoder will chunk the base64 output into 76 character blocks |
|||
* @param urlSafe |
|||
* if <code>true</code> this encoder will emit - and _ instead of the usual + and / characters. |
|||
* <b>Note: no padding is added when encoding using the URL-safe alphabet.</b> |
|||
* @return Base64-encoded data. |
|||
* @throws IllegalArgumentException |
|||
* Thrown when the input array needs an output array bigger than {@link Integer#MAX_VALUE} |
|||
* @since 1.4 |
|||
*/ |
|||
public static byte[] encodeBase64(final byte[] binaryData, final boolean isChunked, final boolean urlSafe) { |
|||
return encodeBase64(binaryData, isChunked, urlSafe, Integer.MAX_VALUE); |
|||
} |
|||
|
|||
/** |
|||
* Encodes binary data using the base64 algorithm, optionally chunking the output into 76 character blocks. |
|||
* |
|||
* @param binaryData |
|||
* Array containing binary data to encode. |
|||
* @param isChunked |
|||
* if <code>true</code> this encoder will chunk the base64 output into 76 character blocks |
|||
* @param urlSafe |
|||
* if <code>true</code> this encoder will emit - and _ instead of the usual + and / characters. |
|||
* <b>Note: no padding is added when encoding using the URL-safe alphabet.</b> |
|||
* @param maxResultSize |
|||
* The maximum result size to accept. |
|||
* @return Base64-encoded data. |
|||
* @throws IllegalArgumentException |
|||
* Thrown when the input array needs an output array bigger than maxResultSize |
|||
* @since 1.4 |
|||
*/ |
|||
public static byte[] encodeBase64(final byte[] binaryData, final boolean isChunked, |
|||
final boolean urlSafe, final int maxResultSize) { |
|||
if (binaryData == null || binaryData.length == 0) { |
|||
return binaryData; |
|||
} |
|||
|
|||
// Create this so can use the super-class method
|
|||
// Also ensures that the same roundings are performed by the ctor and the code
|
|||
final Base64Util b64 = isChunked ? new Base64Util(urlSafe) : new Base64Util(0, CHUNK_SEPARATOR, urlSafe); |
|||
final long len = b64.getEncodedLength(binaryData); |
|||
if (len > maxResultSize) { |
|||
throw new IllegalArgumentException("Input array too big, the output array would be bigger (" + |
|||
len + |
|||
") than the specified maximum size of " + |
|||
maxResultSize); |
|||
} |
|||
|
|||
return b64.encode(binaryData); |
|||
} |
|||
|
|||
/** |
|||
* Decodes a Base64 String into octets. |
|||
* <p> |
|||
* <b>Note:</b> this method seamlessly handles data encoded in URL-safe or normal mode. |
|||
* </p> |
|||
* |
|||
* @param base64String |
|||
* String containing Base64 data |
|||
* @return Array containing decoded data. |
|||
* @since 1.4 |
|||
*/ |
|||
public static byte[] decodeBase64(final String base64String) { |
|||
return new Base64Util().decode(base64String); |
|||
} |
|||
|
|||
/** |
|||
* Decodes Base64 data into octets. |
|||
* <p> |
|||
* <b>Note:</b> this method seamlessly handles data encoded in URL-safe or normal mode. |
|||
* </p> |
|||
* |
|||
* @param base64Data |
|||
* Byte array containing Base64 data |
|||
* @return Array containing decoded data. |
|||
*/ |
|||
public static byte[] decodeBase64(final byte[] base64Data) { |
|||
return new Base64Util().decode(base64Data); |
|||
} |
|||
|
|||
// Implementation of the Encoder Interface
|
|||
|
|||
// Implementation of integer encoding used for crypto
|
|||
/** |
|||
* Decodes a byte64-encoded integer according to crypto standards such as W3C's XML-Signature. |
|||
* |
|||
* @param pArray |
|||
* a byte array containing base64 character data |
|||
* @return A BigInteger |
|||
* @since 1.4 |
|||
*/ |
|||
public static BigInteger decodeInteger(final byte[] pArray) { |
|||
return new BigInteger(1, decodeBase64(pArray)); |
|||
} |
|||
|
|||
/** |
|||
* Encodes to a byte64-encoded integer according to crypto standards such as W3C's XML-Signature. |
|||
* |
|||
* @param bigInt |
|||
* a BigInteger |
|||
* @return A byte array containing base64 character data |
|||
* @throws NullPointerException |
|||
* if null is passed in |
|||
* @since 1.4 |
|||
*/ |
|||
public static byte[] encodeInteger(final BigInteger bigInt) { |
|||
if (bigInt == null) { |
|||
throw new NullPointerException("encodeInteger called with null parameter"); |
|||
} |
|||
return encodeBase64(toIntegerBytes(bigInt), false); |
|||
} |
|||
|
|||
/** |
|||
* Returns a byte-array representation of a <code>BigInteger</code> without sign bit. |
|||
* |
|||
* @param bigInt |
|||
* <code>BigInteger</code> to be converted |
|||
* @return a byte array representation of the BigInteger parameter |
|||
*/ |
|||
static byte[] toIntegerBytes(final BigInteger bigInt) { |
|||
int bitlen = bigInt.bitLength(); |
|||
// round bitlen
|
|||
bitlen = ((bitlen + 7) >> 3) << 3; |
|||
final byte[] bigBytes = bigInt.toByteArray(); |
|||
|
|||
if (((bigInt.bitLength() % 8) != 0) && (((bigInt.bitLength() / 8) + 1) == (bitlen / 8))) { |
|||
return bigBytes; |
|||
} |
|||
// set up params for copying everything but sign bit
|
|||
int startSrc = 0; |
|||
int len = bigBytes.length; |
|||
|
|||
// if bigInt is exactly byte-aligned, just skip signbit in copy
|
|||
if ((bigInt.bitLength() % 8) == 0) { |
|||
startSrc = 1; |
|||
len--; |
|||
} |
|||
final int startDst = bitlen / 8 - len; // to pad w/ nulls as per spec
|
|||
final byte[] resizedBytes = new byte[bitlen / 8]; |
|||
System.arraycopy(bigBytes, startSrc, resizedBytes, startDst, len); |
|||
return resizedBytes; |
|||
} |
|||
|
|||
/** |
|||
* Returns whether or not the <code>octet</code> is in the Base64 alphabet. |
|||
* |
|||
* @param octet |
|||
* The value to test |
|||
* @return <code>true</code> if the value is defined in the the Base64 alphabet <code>false</code> otherwise. |
|||
*/ |
|||
@Override |
|||
protected boolean isInAlphabet(final byte octet) { |
|||
return octet >= 0 && octet < decodeTable.length && decodeTable[octet] != -1; |
|||
} |
|||
|
|||
} |
|||
@ -0,0 +1,521 @@ |
|||
package com.epmet.plugin.power.modules.visit.utils; |
|||
|
|||
|
|||
import java.nio.charset.Charset; |
|||
import java.util.Arrays; |
|||
|
|||
/** |
|||
* Abstract superclass for Base-N encoders and decoders. |
|||
* |
|||
* <p> |
|||
* This class is thread-safe. |
|||
* </p> |
|||
* |
|||
* @version $Id: BaseNCodec.java 1634404 2014-10-26 23:06:10Z ggregory $ |
|||
*/ |
|||
public abstract class BaseNCodec { |
|||
|
|||
/** |
|||
* Holds thread context so classes can be thread-safe. |
|||
* |
|||
* This class is not itself thread-safe; each thread must allocate its own copy. |
|||
* |
|||
* @since 1.7 |
|||
*/ |
|||
static class Context { |
|||
|
|||
/** |
|||
* Place holder for the bytes we're dealing with for our based logic. |
|||
* Bitwise operations store and extract the encoding or decoding from this variable. |
|||
*/ |
|||
int ibitWorkArea; |
|||
|
|||
/** |
|||
* Place holder for the bytes we're dealing with for our based logic. |
|||
* Bitwise operations store and extract the encoding or decoding from this variable. |
|||
*/ |
|||
long lbitWorkArea; |
|||
|
|||
/** |
|||
* Buffer for streaming. |
|||
*/ |
|||
byte[] buffer; |
|||
|
|||
/** |
|||
* Position where next character should be written in the buffer. |
|||
*/ |
|||
int pos; |
|||
|
|||
/** |
|||
* Position where next character should be read from the buffer. |
|||
*/ |
|||
int readPos; |
|||
|
|||
/** |
|||
* Boolean flag to indicate the EOF has been reached. Once EOF has been reached, this object becomes useless, |
|||
* and must be thrown away. |
|||
*/ |
|||
boolean eof; |
|||
|
|||
/** |
|||
* Variable tracks how many characters have been written to the current line. Only used when encoding. We use |
|||
* it to make sure each encoded line never goes beyond lineLength (if lineLength > 0). |
|||
*/ |
|||
int currentLinePos; |
|||
|
|||
/** |
|||
* Writes to the buffer only occur after every 3/5 reads when encoding, and every 4/8 reads when decoding. This |
|||
* variable helps track that. |
|||
*/ |
|||
int modulus; |
|||
|
|||
Context() { |
|||
} |
|||
|
|||
/** |
|||
* Returns a String useful for debugging (especially within a debugger.) |
|||
* |
|||
* @return a String useful for debugging. |
|||
*/ |
|||
@SuppressWarnings("boxing") // OK to ignore boxing here
|
|||
public String toString() { |
|||
return String.format("%s[buffer=%s, currentLinePos=%s, eof=%s, ibitWorkArea=%s, lbitWorkArea=%s, " + |
|||
"modulus=%s, pos=%s, readPos=%s]", this.getClass().getSimpleName(), Arrays.toString(buffer), |
|||
currentLinePos, eof, ibitWorkArea, lbitWorkArea, modulus, pos, readPos); |
|||
} |
|||
} |
|||
|
|||
/** |
|||
* EOF |
|||
* |
|||
* @since 1.7 |
|||
*/ |
|||
static final int EOF = -1; |
|||
|
|||
/** |
|||
* MIME chunk size per RFC 2045 section 6.8. |
|||
* |
|||
* <p> |
|||
* The {@value} character limit does not count the trailing CRLF, but counts all other characters, including any |
|||
* equal signs. |
|||
* </p> |
|||
* |
|||
* @see <a href="http://www.ietf.org/rfc/rfc2045.txt">RFC 2045 section 6.8</a> |
|||
*/ |
|||
public static final int MIME_CHUNK_SIZE = 76; |
|||
|
|||
/** |
|||
* PEM chunk size per RFC 1421 section 4.3.2.4. |
|||
* |
|||
* <p> |
|||
* The {@value} character limit does not count the trailing CRLF, but counts all other characters, including any |
|||
* equal signs. |
|||
* </p> |
|||
* |
|||
* @see <a href="http://tools.ietf.org/html/rfc1421">RFC 1421 section 4.3.2.4</a> |
|||
*/ |
|||
public static final int PEM_CHUNK_SIZE = 64; |
|||
|
|||
private static final int DEFAULT_BUFFER_RESIZE_FACTOR = 2; |
|||
|
|||
/** |
|||
* Defines the default buffer size - currently {@value} |
|||
* - must be large enough for at least one encoded block+separator |
|||
*/ |
|||
private static final int DEFAULT_BUFFER_SIZE = 8192; |
|||
|
|||
/** Mask used to extract 8 bits, used in decoding bytes */ |
|||
protected static final int MASK_8BITS = 0xff; |
|||
|
|||
/** |
|||
* Byte used to pad output. |
|||
*/ |
|||
protected static final byte PAD_DEFAULT = '='; // Allow static access to default
|
|||
|
|||
/** |
|||
* @deprecated Use {@link #pad}. Will be removed in 2.0. |
|||
*/ |
|||
@Deprecated |
|||
protected final byte PAD = PAD_DEFAULT; // instance variable just in case it needs to vary later
|
|||
|
|||
protected final byte pad; // instance variable just in case it needs to vary later
|
|||
|
|||
/** Number of bytes in each full block of unencoded data, e.g. 4 for Base64 and 5 for Base32 */ |
|||
private final int unencodedBlockSize; |
|||
|
|||
/** Number of bytes in each full block of encoded data, e.g. 3 for Base64 and 8 for Base32 */ |
|||
private final int encodedBlockSize; |
|||
|
|||
/** |
|||
* Chunksize for encoding. Not used when decoding. |
|||
* A value of zero or less implies no chunking of the encoded data. |
|||
* Rounded down to nearest multiple of encodedBlockSize. |
|||
*/ |
|||
protected final int lineLength; |
|||
|
|||
/** |
|||
* Size of chunk separator. Not used unless {@link #lineLength} > 0. |
|||
*/ |
|||
private final int chunkSeparatorLength; |
|||
|
|||
/** |
|||
* Note <code>lineLength</code> is rounded down to the nearest multiple of {@link #encodedBlockSize} |
|||
* If <code>chunkSeparatorLength</code> is zero, then chunking is disabled. |
|||
* @param unencodedBlockSize the size of an unencoded block (e.g. Base64 = 3) |
|||
* @param encodedBlockSize the size of an encoded block (e.g. Base64 = 4) |
|||
* @param lineLength if > 0, use chunking with a length <code>lineLength</code> |
|||
* @param chunkSeparatorLength the chunk separator length, if relevant |
|||
*/ |
|||
protected BaseNCodec(final int unencodedBlockSize, final int encodedBlockSize, |
|||
final int lineLength, final int chunkSeparatorLength) { |
|||
this(unencodedBlockSize, encodedBlockSize, lineLength, chunkSeparatorLength, PAD_DEFAULT); |
|||
} |
|||
|
|||
/** |
|||
* Note <code>lineLength</code> is rounded down to the nearest multiple of {@link #encodedBlockSize} |
|||
* If <code>chunkSeparatorLength</code> is zero, then chunking is disabled. |
|||
* @param unencodedBlockSize the size of an unencoded block (e.g. Base64 = 3) |
|||
* @param encodedBlockSize the size of an encoded block (e.g. Base64 = 4) |
|||
* @param lineLength if > 0, use chunking with a length <code>lineLength</code> |
|||
* @param chunkSeparatorLength the chunk separator length, if relevant |
|||
* @param pad byte used as padding byte. |
|||
*/ |
|||
protected BaseNCodec(final int unencodedBlockSize, final int encodedBlockSize, |
|||
final int lineLength, final int chunkSeparatorLength, final byte pad) { |
|||
this.unencodedBlockSize = unencodedBlockSize; |
|||
this.encodedBlockSize = encodedBlockSize; |
|||
final boolean useChunking = lineLength > 0 && chunkSeparatorLength > 0; |
|||
this.lineLength = useChunking ? (lineLength / encodedBlockSize) * encodedBlockSize : 0; |
|||
this.chunkSeparatorLength = chunkSeparatorLength; |
|||
|
|||
this.pad = pad; |
|||
} |
|||
|
|||
/** |
|||
* Returns true if this object has buffered data for reading. |
|||
* |
|||
* @param context the context to be used |
|||
* @return true if there is data still available for reading. |
|||
*/ |
|||
boolean hasData(final Context context) { // package protected for access from I/O streams
|
|||
return context.buffer != null; |
|||
} |
|||
|
|||
/** |
|||
* Returns the amount of buffered data available for reading. |
|||
* |
|||
* @param context the context to be used |
|||
* @return The amount of buffered data available for reading. |
|||
*/ |
|||
int available(final Context context) { // package protected for access from I/O streams
|
|||
return context.buffer != null ? context.pos - context.readPos : 0; |
|||
} |
|||
|
|||
/** |
|||
* Get the default buffer size. Can be overridden. |
|||
* |
|||
* @return {@link #DEFAULT_BUFFER_SIZE} |
|||
*/ |
|||
protected int getDefaultBufferSize() { |
|||
return DEFAULT_BUFFER_SIZE; |
|||
} |
|||
|
|||
/** |
|||
* Increases our buffer by the {@link #DEFAULT_BUFFER_RESIZE_FACTOR}. |
|||
* @param context the context to be used |
|||
*/ |
|||
private byte[] resizeBuffer(final Context context) { |
|||
if (context.buffer == null) { |
|||
context.buffer = new byte[getDefaultBufferSize()]; |
|||
context.pos = 0; |
|||
context.readPos = 0; |
|||
} else { |
|||
final byte[] b = new byte[context.buffer.length * DEFAULT_BUFFER_RESIZE_FACTOR]; |
|||
System.arraycopy(context.buffer, 0, b, 0, context.buffer.length); |
|||
context.buffer = b; |
|||
} |
|||
return context.buffer; |
|||
} |
|||
|
|||
/** |
|||
* Ensure that the buffer has room for <code>size</code> bytes |
|||
* |
|||
* @param size minimum spare space required |
|||
* @param context the context to be used |
|||
* @return the buffer |
|||
*/ |
|||
protected byte[] ensureBufferSize(final int size, final Context context){ |
|||
if ((context.buffer == null) || (context.buffer.length < context.pos + size)){ |
|||
return resizeBuffer(context); |
|||
} |
|||
return context.buffer; |
|||
} |
|||
|
|||
/** |
|||
* Extracts buffered data into the provided byte[] array, starting at position bPos, up to a maximum of bAvail |
|||
* bytes. Returns how many bytes were actually extracted. |
|||
* <p> |
|||
* Package protected for access from I/O streams. |
|||
* |
|||
* @param b |
|||
* byte[] array to extract the buffered data into. |
|||
* @param bPos |
|||
* position in byte[] array to start extraction at. |
|||
* @param bAvail |
|||
* amount of bytes we're allowed to extract. We may extract fewer (if fewer are available). |
|||
* @param context |
|||
* the context to be used |
|||
* @return The number of bytes successfully extracted into the provided byte[] array. |
|||
*/ |
|||
int readResults(final byte[] b, final int bPos, final int bAvail, final Context context) { |
|||
if (context.buffer != null) { |
|||
final int len = Math.min(available(context), bAvail); |
|||
System.arraycopy(context.buffer, context.readPos, b, bPos, len); |
|||
context.readPos += len; |
|||
if (context.readPos >= context.pos) { |
|||
context.buffer = null; // so hasData() will return false, and this method can return -1
|
|||
} |
|||
return len; |
|||
} |
|||
return context.eof ? EOF : 0; |
|||
} |
|||
|
|||
/** |
|||
* Checks if a byte value is whitespace or not. |
|||
* Whitespace is taken to mean: space, tab, CR, LF |
|||
* @param byteToCheck |
|||
* the byte to check |
|||
* @return true if byte is whitespace, false otherwise |
|||
*/ |
|||
protected static boolean isWhiteSpace(final byte byteToCheck) { |
|||
switch (byteToCheck) { |
|||
case ' ' : |
|||
case '\n' : |
|||
case '\r' : |
|||
case '\t' : |
|||
return true; |
|||
default : |
|||
return false; |
|||
} |
|||
} |
|||
|
|||
/** |
|||
* Encodes an Object using the Base-N algorithm. This method is provided in order to satisfy the requirements of |
|||
* the Encoder interface, and will throw an EncoderException if the supplied object is not of type byte[]. |
|||
* |
|||
* @param obj |
|||
* Object to encode |
|||
* @return An object (of type byte[]) containing the Base-N encoded data which corresponds to the byte[] supplied. |
|||
* @throws Exception |
|||
* if the parameter supplied is not of type byte[] |
|||
*/ |
|||
public Object encode(final Object obj) throws Exception { |
|||
if (!(obj instanceof byte[])) { |
|||
throw new Exception("Parameter supplied to Base-N encode is not a byte[]"); |
|||
} |
|||
return encode((byte[]) obj); |
|||
} |
|||
|
|||
/** |
|||
* Encodes a byte[] containing binary data, into a String containing characters in the Base-N alphabet. |
|||
* Uses UTF8 encoding. |
|||
* |
|||
* @param pArray |
|||
* a byte array containing binary data |
|||
* @return A String containing only Base-N character data |
|||
*/ |
|||
public String encodeToString(final byte[] pArray) { |
|||
return newStringUtf8(encode(pArray)); |
|||
} |
|||
|
|||
/** |
|||
* Encodes a byte[] containing binary data, into a String containing characters in the appropriate alphabet. |
|||
* Uses UTF8 encoding. |
|||
* |
|||
* @param pArray a byte array containing binary data |
|||
* @return String containing only character data in the appropriate alphabet. |
|||
*/ |
|||
public String encodeAsString(final byte[] pArray){ |
|||
return newStringUtf8(encode(pArray)); |
|||
} |
|||
|
|||
/** |
|||
* Decodes an Object using the Base-N algorithm. This method is provided in order to satisfy the requirements of |
|||
* the Decoder interface, and will throw a DecoderException if the supplied object is not of type byte[] or String. |
|||
* |
|||
* @param obj |
|||
* Object to decode |
|||
* @return An object (of type byte[]) containing the binary data which corresponds to the byte[] or String |
|||
* supplied. |
|||
* @throws Exception |
|||
* if the parameter supplied is not of type byte[] |
|||
*/ |
|||
public Object decode(final Object obj) throws Exception { |
|||
if (obj instanceof byte[]) { |
|||
return decode((byte[]) obj); |
|||
} else if (obj instanceof String) { |
|||
return decode((String) obj); |
|||
} else { |
|||
throw new Exception("Parameter supplied to Base-N decode is not a byte[] or a String"); |
|||
} |
|||
} |
|||
|
|||
/** |
|||
* Decodes a String containing characters in the Base-N alphabet. |
|||
* |
|||
* @param pArray |
|||
* A String containing Base-N character data |
|||
* @return a byte array containing binary data |
|||
*/ |
|||
public byte[] decode(final String pArray) { |
|||
return decode(getBytesUtf8(pArray)); |
|||
} |
|||
|
|||
/** |
|||
* Decodes a byte[] containing characters in the Base-N alphabet. |
|||
* |
|||
* @param pArray |
|||
* A byte array containing Base-N character data |
|||
* @return a byte array containing binary data |
|||
*/ |
|||
public byte[] decode(final byte[] pArray) { |
|||
if (pArray == null || pArray.length == 0) { |
|||
return pArray; |
|||
} |
|||
final Context context = new Context(); |
|||
decode(pArray, 0, pArray.length, context); |
|||
decode(pArray, 0, EOF, context); // Notify decoder of EOF.
|
|||
final byte[] result = new byte[context.pos]; |
|||
readResults(result, 0, result.length, context); |
|||
return result; |
|||
} |
|||
|
|||
/** |
|||
* Encodes a byte[] containing binary data, into a byte[] containing characters in the alphabet. |
|||
* |
|||
* @param pArray |
|||
* a byte array containing binary data |
|||
* @return A byte array containing only the basen alphabetic character data |
|||
*/ |
|||
public byte[] encode(final byte[] pArray) { |
|||
if (pArray == null || pArray.length == 0) { |
|||
return pArray; |
|||
} |
|||
final Context context = new Context(); |
|||
encode(pArray, 0, pArray.length, context); |
|||
encode(pArray, 0, EOF, context); // Notify encoder of EOF.
|
|||
final byte[] buf = new byte[context.pos - context.readPos]; |
|||
readResults(buf, 0, buf.length, context); |
|||
return buf; |
|||
} |
|||
|
|||
// package protected for access from I/O streams
|
|||
abstract void encode(byte[] pArray, int i, int length, Context context); |
|||
|
|||
// package protected for access from I/O streams
|
|||
abstract void decode(byte[] pArray, int i, int length, Context context); |
|||
|
|||
/** |
|||
* Returns whether or not the <code>octet</code> is in the current alphabet. |
|||
* Does not allow whitespace or pad. |
|||
* |
|||
* @param value The value to test |
|||
* |
|||
* @return <code>true</code> if the value is defined in the current alphabet, <code>false</code> otherwise. |
|||
*/ |
|||
protected abstract boolean isInAlphabet(byte value); |
|||
|
|||
/** |
|||
* Tests a given byte array to see if it contains only valid characters within the alphabet. |
|||
* The method optionally treats whitespace and pad as valid. |
|||
* |
|||
* @param arrayOctet byte array to test |
|||
* @param allowWSPad if <code>true</code>, then whitespace and PAD are also allowed |
|||
* |
|||
* @return <code>true</code> if all bytes are valid characters in the alphabet or if the byte array is empty; |
|||
* <code>false</code>, otherwise |
|||
*/ |
|||
public boolean isInAlphabet(final byte[] arrayOctet, final boolean allowWSPad) { |
|||
for (int i = 0; i < arrayOctet.length; i++) { |
|||
if (!isInAlphabet(arrayOctet[i]) && |
|||
(!allowWSPad || (arrayOctet[i] != pad) && !isWhiteSpace(arrayOctet[i]))) { |
|||
return false; |
|||
} |
|||
} |
|||
return true; |
|||
} |
|||
|
|||
/** |
|||
* Tests a given String to see if it contains only valid characters within the alphabet. |
|||
* The method treats whitespace and PAD as valid. |
|||
* |
|||
* @param basen String to test |
|||
* @return <code>true</code> if all characters in the String are valid characters in the alphabet or if |
|||
* the String is empty; <code>false</code>, otherwise |
|||
* @see #isInAlphabet(byte[], boolean) |
|||
*/ |
|||
public boolean isInAlphabet(final String basen) { |
|||
return isInAlphabet(getBytesUtf8(basen), true); |
|||
} |
|||
|
|||
/** |
|||
* Tests a given byte array to see if it contains any characters within the alphabet or PAD. |
|||
* |
|||
* Intended for use in checking line-ending arrays |
|||
* |
|||
* @param arrayOctet |
|||
* byte array to test |
|||
* @return <code>true</code> if any byte is a valid character in the alphabet or PAD; <code>false</code> otherwise |
|||
*/ |
|||
protected boolean containsAlphabetOrPad(final byte[] arrayOctet) { |
|||
if (arrayOctet == null) { |
|||
return false; |
|||
} |
|||
for (final byte element : arrayOctet) { |
|||
if (pad == element || isInAlphabet(element)) { |
|||
return true; |
|||
} |
|||
} |
|||
return false; |
|||
} |
|||
|
|||
/** |
|||
* Calculates the amount of space needed to encode the supplied array. |
|||
* |
|||
* @param pArray byte[] array which will later be encoded |
|||
* |
|||
* @return amount of space needed to encoded the supplied array. |
|||
* Returns a long since a max-len array will require > Integer.MAX_VALUE |
|||
*/ |
|||
public long getEncodedLength(final byte[] pArray) { |
|||
// Calculate non-chunked size - rounded up to allow for padding
|
|||
// cast to long is needed to avoid possibility of overflow
|
|||
long len = ((pArray.length + unencodedBlockSize-1) / unencodedBlockSize) * (long) encodedBlockSize; |
|||
if (lineLength > 0) { // We're using chunking
|
|||
// Round up to nearest multiple
|
|||
len += ((len + lineLength-1) / lineLength) * chunkSeparatorLength; |
|||
} |
|||
return len; |
|||
} |
|||
|
|||
public static Charset UTF8 = Charset.forName("UTF-8"); |
|||
|
|||
public static String newStringUtf8(byte[] bytes) { |
|||
return newString(bytes, UTF8); |
|||
} |
|||
|
|||
private static String newString(final byte[] bytes, final Charset charset) { |
|||
return bytes == null ? null : new String(bytes, charset); |
|||
} |
|||
|
|||
public static byte[] getBytesUtf8(final String string) { |
|||
return getBytes(string, UTF8); |
|||
} |
|||
|
|||
private static byte[] getBytes(final String string, final Charset charset) { |
|||
if (string == null) { |
|||
return null; |
|||
} |
|||
return string.getBytes(charset); |
|||
} |
|||
} |
|||
@ -0,0 +1,184 @@ |
|||
package com.epmet.plugin.power.modules.visit.utils; |
|||
|
|||
import com.alibaba.fastjson.JSON; |
|||
import com.alibaba.fastjson.JSONObject; |
|||
import com.epmet.commons.tools.constant.NumConstant; |
|||
import com.epmet.commons.tools.exception.EpmetErrorCode; |
|||
import com.epmet.commons.tools.exception.EpmetException; |
|||
import com.epmet.commons.tools.redis.RedisUtils; |
|||
import com.epmet.commons.tools.utils.ConvertUtils; |
|||
import com.epmet.commons.tools.utils.HttpClientManager; |
|||
import com.epmet.commons.tools.utils.Result; |
|||
import com.epmet.plugin.commons.redis.RedisKeys; |
|||
import com.epmet.plugin.power.config.DhCloudProperties; |
|||
import com.epmet.plugin.power.dto.hik.form.HikAuthorityFormDTO; |
|||
import com.epmet.plugin.power.dto.hik.form.HikPersonFormDTO; |
|||
import com.epmet.plugin.power.dto.visit.form.VisitVisitorFormDTO; |
|||
import org.slf4j.Logger; |
|||
import org.slf4j.LoggerFactory; |
|||
import org.springframework.beans.factory.annotation.Autowired; |
|||
import org.springframework.stereotype.Component; |
|||
|
|||
import java.util.HashMap; |
|||
import java.util.Map; |
|||
|
|||
/** |
|||
* 海康设备下放命令 |
|||
* |
|||
* @author zhy |
|||
* @date 2022/5/20 9:36 |
|||
*/ |
|||
@Component |
|||
public class DhDeviceUtil { |
|||
private static Logger logger = LoggerFactory.getLogger(DhDeviceUtil.class); |
|||
|
|||
@Autowired |
|||
private DhCloudProperties dhCloudProperties; |
|||
|
|||
@Autowired |
|||
private RedisUtils redisUtils; |
|||
|
|||
private final String GET_PUBLIC_KEY = "/WPMS/getPublicKey"; |
|||
private final String GET_LOGIN_PASS = "/WPMS/login"; |
|||
private final String SEND_PERSON = "/api/v1/estate/system/person"; |
|||
private final String ISSUE_AUTHORITY = "/api/v1/estate/entranceGuard/permissions/actions/authorityIssued"; |
|||
|
|||
/** |
|||
* 获取publicKey |
|||
* |
|||
* @param |
|||
* @return void |
|||
* @author zhy |
|||
* @date 2022/5/20 16:40 |
|||
*/ |
|||
public String getAccessToken() { |
|||
String key = RedisKeys.getDhPublicKey(); |
|||
Object obj = redisUtils.get(key); |
|||
if (null != obj) { |
|||
return (String) obj; |
|||
} |
|||
|
|||
String url = dhCloudProperties.getUrl().concat(GET_PUBLIC_KEY); |
|||
Map<String, Object> paramsMap = new HashMap<>(4); |
|||
paramsMap.put("loginName", dhCloudProperties.getLoginName()); |
|||
|
|||
String data = HttpClientManager.getInstance().sendPost(url, paramsMap).getData(); |
|||
if (null == data) { |
|||
throw new EpmetException(EpmetErrorCode.EPMET_COMMON_OPERATION_FAIL.getCode(), "AccessToken获取失败"); |
|||
} |
|||
|
|||
JSONObject toResult = JSON.parseObject(data); |
|||
if (!toResult.containsKey("publicKey")) { |
|||
throw new EpmetException(EpmetErrorCode.EPMET_COMMON_OPERATION_FAIL.getCode(), "AccessToken获取失败"); |
|||
} |
|||
String accessToken = toResult.get("publicKey").toString(); |
|||
|
|||
redisUtils.set(key, accessToken, RedisUtils.MINUTE_THIRTY_EXPIRE); |
|||
return accessToken; |
|||
} |
|||
|
|||
/** |
|||
* 获取loginPass |
|||
* |
|||
* @param |
|||
* @return void |
|||
* @author zhy |
|||
* @date 2022/5/20 16:40 |
|||
*/ |
|||
public DhToken getLoginPass(String publicKey) { |
|||
String key = RedisKeys.getDhToken(); |
|||
Object obj = redisUtils.get(key); |
|||
if (null != obj) { |
|||
return (DhToken) obj; |
|||
} |
|||
|
|||
String url = dhCloudProperties.getUrl().concat(GET_LOGIN_PASS); |
|||
Map<String, Object> paramsMap = new HashMap<>(8); |
|||
paramsMap.put("loginName", dhCloudProperties.getLoginName()); |
|||
paramsMap.put("loginPass", publicKey); |
|||
|
|||
String data = HttpClientManager.getInstance().sendPost(url, paramsMap).getData(); |
|||
if (null == data) { |
|||
throw new EpmetException(EpmetErrorCode.EPMET_COMMON_OPERATION_FAIL.getCode(), "AccessToken获取失败"); |
|||
} |
|||
|
|||
JSONObject toResult = JSON.parseObject(data); |
|||
if (!toResult.containsKey("token")) { |
|||
throw new EpmetException(EpmetErrorCode.EPMET_COMMON_OPERATION_FAIL.getCode(), "AccessToken获取失败"); |
|||
} |
|||
DhToken token = new DhToken(); |
|||
token.setId(toResult.get("id").toString()); |
|||
token.setLoginName(toResult.get("loginName").toString()); |
|||
token.setPublicKey(toResult.get("publicKey").toString()); |
|||
token.setToken(toResult.get("token").toString()); |
|||
redisUtils.set(key, token, RedisUtils.MINUTE_THIRTY_EXPIRE); |
|||
return token; |
|||
} |
|||
|
|||
/** |
|||
* 下发人员 |
|||
* |
|||
* @param dto |
|||
* @return java.lang.String 人员ID |
|||
* @author zhy |
|||
* @date 2022/5/23 10:08 |
|||
*/ |
|||
public String sendPerson(VisitVisitorFormDTO dto) { |
|||
String url = dhCloudProperties.getUrl().concat(SEND_PERSON); |
|||
|
|||
Map<String, String> paramsMap = new HashMap<>(4); |
|||
DhToken token = getLoginPass(getAccessToken()); |
|||
String urlParam = "?userId=" + token.getId() + "&username=" + token.getLoginName() + "&token=" + token.getToken(); |
|||
url = url + urlParam; |
|||
|
|||
String data = HttpClientManager.getInstance().sendPostByJSONAndHeader(url, JSON.toJSONString(dto), paramsMap).getData(); |
|||
|
|||
if (null == data) { |
|||
throw new EpmetException(EpmetErrorCode.EPMET_COMMON_OPERATION_FAIL.getCode(), "人员信息下发失败"); |
|||
} |
|||
JSONObject toResult = JSON.parseObject(data); |
|||
Result result = ConvertUtils.mapToEntity(toResult, Result.class); |
|||
if (null != toResult.get("code")) { |
|||
result.setCode(((Integer) toResult.get("code")).intValue()); |
|||
} |
|||
if (NumConstant.TWO_HUNDRED != result.getCode()) { |
|||
logger.info(result.getMsg()); |
|||
throw new EpmetException(EpmetErrorCode.EPMET_COMMON_OPERATION_FAIL.getCode(), "人员信息下发失败"); |
|||
} |
|||
Object RegisterResult = result.getData(); |
|||
JSONObject jsonObject = JSON.parseObject(RegisterResult.toString()); |
|||
return jsonObject.getString("personId"); |
|||
} |
|||
|
|||
/** |
|||
* 下发人员权限 |
|||
* |
|||
* @param dto |
|||
* @return java.lang.String |
|||
* @author zhy |
|||
* @date 2022/5/23 11:04 |
|||
*/ |
|||
public String authorityIssued(HikAuthorityFormDTO dto) { |
|||
String url = dhCloudProperties.getUrl().concat(ISSUE_AUTHORITY); |
|||
|
|||
Map<String, String> paramsMap = new HashMap<>(4); |
|||
paramsMap.put("Authorization", getAccessToken()); |
|||
|
|||
String data = HttpClientManager.getInstance().sendPostByJSONAndHeader(url, JSON.toJSONString(dto), paramsMap).getData(); |
|||
|
|||
if (null == data) { |
|||
throw new EpmetException(EpmetErrorCode.EPMET_COMMON_OPERATION_FAIL.getCode(), "人员权限下发失败"); |
|||
} |
|||
JSONObject toResult = JSON.parseObject(data); |
|||
Result result = ConvertUtils.mapToEntity(toResult, Result.class); |
|||
if (null != toResult.get("code")) { |
|||
result.setCode(((Integer) toResult.get("code")).intValue()); |
|||
} |
|||
if (NumConstant.TWO_HUNDRED != result.getCode()) { |
|||
logger.info(result.getMsg()); |
|||
throw new EpmetException(EpmetErrorCode.EPMET_COMMON_OPERATION_FAIL.getCode(), "人员权限下发失败"); |
|||
} |
|||
return "success"; |
|||
} |
|||
|
|||
} |
|||
@ -0,0 +1,40 @@ |
|||
package com.epmet.plugin.power.modules.visit.utils; |
|||
|
|||
import lombok.Data; |
|||
|
|||
import javax.validation.constraints.NotBlank; |
|||
import java.io.Serializable; |
|||
|
|||
|
|||
/** |
|||
* 大华设备鉴权信息 |
|||
* |
|||
* @author generator generator@elink-cn.com |
|||
* @since v1.0.0 2022-04-22 |
|||
*/ |
|||
@Data |
|||
public class DhToken implements Serializable { |
|||
|
|||
private static final long serialVersionUID = 1L; |
|||
|
|||
/** |
|||
* 主键 |
|||
*/ |
|||
private String id; |
|||
|
|||
/** |
|||
* loginName |
|||
*/ |
|||
private String loginName; |
|||
|
|||
/** |
|||
* token |
|||
*/ |
|||
private String token; |
|||
|
|||
/** |
|||
* publicKey |
|||
*/ |
|||
private String publicKey; |
|||
|
|||
} |
|||
@ -0,0 +1,309 @@ |
|||
package com.epmet.plugin.power.modules.visit.utils; |
|||
|
|||
import java.security.Key; |
|||
import java.security.KeyFactory; |
|||
import java.security.KeyPair; |
|||
import java.security.KeyPairGenerator; |
|||
import java.security.PrivateKey; |
|||
import java.security.PublicKey; |
|||
import java.security.SecureRandom; |
|||
import java.security.Security; |
|||
import java.security.Signature; |
|||
import java.security.interfaces.RSAPrivateKey; |
|||
import java.security.interfaces.RSAPublicKey; |
|||
import java.security.spec.PKCS8EncodedKeySpec; |
|||
import java.security.spec.X509EncodedKeySpec; |
|||
import java.util.HashMap; |
|||
import java.util.Map; |
|||
|
|||
import javax.crypto.Cipher; |
|||
|
|||
import org.bouncycastle.jce.provider.BouncyCastleProvider; |
|||
|
|||
/** |
|||
* |
|||
*<p>Title:RSAUtils</p> |
|||
*<p>Description:RSA工具类</p> |
|||
*<p>Company:浙江大华技术股份有限公司</p> |
|||
* @author 32174 |
|||
* @date 2018年12月18日 |
|||
*/ |
|||
public class RSAUtils{ |
|||
public static final String KEY_ALGORITHM = "RSA"; |
|||
public static final String SIGNATURE_ALGORITHM = "MD5withRSA"; |
|||
public static final String PADDING="RSA/None/PKCS1Padding"; |
|||
|
|||
private static final String PUBLIC_KEY = "RSAPublicKey"; |
|||
private static final String PRIVATE_KEY = "RSAPrivateKey"; |
|||
|
|||
private static final int KEY_SIZE = 1024; // 秘钥长度1024，最长加密117字节明文
|
|||
|
|||
static{ |
|||
Security.addProvider(new BouncyCastleProvider()); |
|||
} |
|||
/** |
|||
* 用私钥对信息生成数字签名 |
|||
* |
|||
* @param data |
|||
* 加密数据 |
|||
* @param privateKey |
|||
* 私钥 |
|||
* |
|||
* @return |
|||
* @throws Exception |
|||
*/ |
|||
public static String sign(byte[] data, String privateKey) throws Exception { |
|||
// 解密由base64编码的私钥
|
|||
byte[] keyBytes = decryptBASE64(privateKey); |
|||
|
|||
// 构造PKCS8EncodedKeySpec对象
|
|||
PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes); |
|||
|
|||
// KEY_ALGORITHM 指定的加密算法
|
|||
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM); |
|||
|
|||
// 取私钥匙对象
|
|||
PrivateKey priKey = keyFactory.generatePrivate(pkcs8KeySpec); |
|||
|
|||
// 用私钥对信息生成数字签名
|
|||
Signature signature = Signature.getInstance(SIGNATURE_ALGORITHM); |
|||
signature.initSign(priKey); |
|||
signature.update(data); |
|||
|
|||
return encryptBASE64(signature.sign()); |
|||
} |
|||
|
|||
/** |
|||
* BASE64加密 |
|||
* |
|||
* @param key |
|||
* @return |
|||
* @throws Exception |
|||
*/ |
|||
public static String encryptBASE64(byte[] key) throws Exception { |
|||
return Base64Util.encodeBase64String(key); |
|||
} |
|||
|
|||
/** |
|||
* BASE64解密 |
|||
* |
|||
* @param key |
|||
* @return |
|||
* @throws Exception |
|||
*/ |
|||
public static byte[] decryptBASE64(String key) throws Exception { |
|||
return Base64Util.decodeBase64(key.getBytes()); |
|||
} |
|||
|
|||
/** |
|||
* 校验数字签名 |
|||
* |
|||
* @param data |
|||
* 加密数据 |
|||
* @param publicKey |
|||
* 公钥 |
|||
* @param sign |
|||
* 数字签名 |
|||
* |
|||
* @return 校验成功返回true 失败返回false |
|||
* @throws Exception |
|||
* |
|||
*/ |
|||
public static boolean verify(byte[] data, String publicKey, String sign) |
|||
throws Exception { |
|||
|
|||
// 解密由base64编码的公钥
|
|||
byte[] keyBytes = decryptBASE64(publicKey); |
|||
|
|||
// 构造X509EncodedKeySpec对象
|
|||
X509EncodedKeySpec keySpec = new X509EncodedKeySpec(keyBytes); |
|||
|
|||
// KEY_ALGORITHM 指定的加密算法
|
|||
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM); |
|||
|
|||
// 取公钥匙对象
|
|||
PublicKey pubKey = keyFactory.generatePublic(keySpec); |
|||
|
|||
Signature signature = Signature.getInstance(SIGNATURE_ALGORITHM); |
|||
signature.initVerify(pubKey); |
|||
signature.update(data); |
|||
|
|||
// 验证签名是否正常
|
|||
return signature.verify(decryptBASE64(sign)); |
|||
} |
|||
|
|||
/** |
|||
* 解密<br> |
|||
* 用私钥解密 |
|||
* |
|||
* @param data |
|||
* @param key |
|||
* @return |
|||
* @throws Exception |
|||
*/ |
|||
public static byte[] decryptByPrivateKey(byte[] data, String key) |
|||
throws Exception { |
|||
// 对密钥解密
|
|||
byte[] keyBytes = decryptBASE64(key); |
|||
|
|||
// 取得私钥
|
|||
PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes); |
|||
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM); |
|||
Key privateKey = keyFactory.generatePrivate(pkcs8KeySpec); |
|||
|
|||
// 对数据解密
|
|||
Cipher cipher = Cipher.getInstance(PADDING , BouncyCastleProvider.PROVIDER_NAME); |
|||
cipher.init(Cipher.DECRYPT_MODE, privateKey); |
|||
|
|||
return cipher.doFinal(data); |
|||
} |
|||
|
|||
/** |
|||
* 解密<br> |
|||
* 用公钥解密 |
|||
* |
|||
* @param data |
|||
* @param key |
|||
* @return |
|||
* @throws Exception |
|||
*/ |
|||
public static byte[] decryptByPublicKey(byte[] data, String key) |
|||
throws Exception { |
|||
// 对密钥解密
|
|||
byte[] keyBytes = decryptBASE64(key); |
|||
|
|||
// 取得公钥
|
|||
X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(keyBytes); |
|||
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM); |
|||
Key publicKey = keyFactory.generatePublic(x509KeySpec); |
|||
|
|||
// 对数据解密
|
|||
Cipher cipher = Cipher.getInstance(PADDING , BouncyCastleProvider.PROVIDER_NAME); |
|||
cipher.init(Cipher.DECRYPT_MODE, publicKey); |
|||
|
|||
return cipher.doFinal(data); |
|||
} |
|||
|
|||
/** |
|||
* 加密<br> |
|||
* 用公钥加密 |
|||
* |
|||
* @param data |
|||
* @param key |
|||
* @return |
|||
* @throws Exception |
|||
*/ |
|||
public static byte[] encryptByPublicKey(byte[] data, String key) |
|||
throws Exception { |
|||
// 对公钥解密
|
|||
byte[] keyBytes = decryptBASE64(key); |
|||
|
|||
// 取得公钥
|
|||
X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(keyBytes); |
|||
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM); |
|||
Key publicKey = keyFactory.generatePublic(x509KeySpec); |
|||
|
|||
// 对数据加密
|
|||
Cipher cipher = Cipher.getInstance(PADDING , BouncyCastleProvider.PROVIDER_NAME); |
|||
cipher.init(Cipher.ENCRYPT_MODE, publicKey); |
|||
|
|||
return cipher.doFinal(data); |
|||
} |
|||
|
|||
/** |
|||
* 加密<br> |
|||
* 用私钥加密 |
|||
* |
|||
* @param data |
|||
* @param key |
|||
* @return |
|||
* @throws Exception |
|||
*/ |
|||
public static byte[] encryptByPrivateKey(byte[] data, String key) |
|||
throws Exception { |
|||
// 对密钥解密
|
|||
byte[] keyBytes = decryptBASE64(key); |
|||
|
|||
// 取得私钥
|
|||
PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes); |
|||
KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM); |
|||
Key privateKey = keyFactory.generatePrivate(pkcs8KeySpec); |
|||
|
|||
// 对数据加密
|
|||
Cipher cipher = Cipher.getInstance(PADDING , BouncyCastleProvider.PROVIDER_NAME); |
|||
cipher.init(Cipher.ENCRYPT_MODE, privateKey); |
|||
|
|||
return cipher.doFinal(data); |
|||
} |
|||
|
|||
/** |
|||
* 取得私钥(BASE64编码) |
|||
* |
|||
* @param keyMap |
|||
* @return |
|||
* @throws Exception |
|||
*/ |
|||
public static String getPrivateKey(Map<String, Object> keyMap) |
|||
throws Exception { |
|||
Key key = (Key) keyMap.get(PRIVATE_KEY); |
|||
|
|||
return encryptBASE64(key.getEncoded()); |
|||
} |
|||
|
|||
/** |
|||
* 取得公钥(BASE64编码) |
|||
* |
|||
* @param keyMap |
|||
* @return |
|||
* @throws Exception |
|||
*/ |
|||
public static String getPublicKey(Map<String, Object> keyMap) |
|||
throws Exception { |
|||
Key key = (Key) keyMap.get(PUBLIC_KEY); |
|||
|
|||
return encryptBASE64(key.getEncoded()); |
|||
} |
|||
|
|||
/** |
|||
* 判断字符串是否被公钥加密 |
|||
* @param text |
|||
* @param privateKey |
|||
* @return |
|||
*/ |
|||
public static boolean isTextEncryptByPublicKey(String text , String privateKey){ |
|||
boolean bol = true; |
|||
try{ |
|||
byte[] encryBytes = RSAUtils.decryptBASE64(text); |
|||
RSAUtils.decryptByPrivateKey(encryBytes, privateKey); |
|||
}catch(Exception e){ |
|||
bol = false; |
|||
} |
|||
return bol; |
|||
} |
|||
|
|||
/** |
|||
* 初始化密钥 |
|||
* |
|||
* @return |
|||
* @throws Exception |
|||
*/ |
|||
public static Map<String, Object> initKey() throws Exception { |
|||
KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance(KEY_ALGORITHM , BouncyCastleProvider.PROVIDER_NAME); |
|||
keyPairGen.initialize(KEY_SIZE , new SecureRandom()); |
|||
|
|||
KeyPair keyPair = keyPairGen.generateKeyPair(); |
|||
|
|||
// 公钥
|
|||
RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic(); |
|||
|
|||
// 私钥
|
|||
RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate(); |
|||
|
|||
Map<String, Object> keyMap = new HashMap<String, Object>(2); |
|||
|
|||
keyMap.put(PUBLIC_KEY, publicKey); |
|||
keyMap.put(PRIVATE_KEY, privateKey); |
|||
return keyMap; |
|||
} |
|||
|
|||
} |
|||
Loading…
Reference in new issue