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文件url采用base64加encodeURI双重编码，彻底解决各种奇葩文件名导致的下载异常

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chenkailing 2020-12-27 01:43:50 +08:00 committed by kl
parent aaf396fbc8
commit 486c09b24a
20 changed files with 113 additions and 1117 deletions
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1
server/src/main/config/freemarker_implicit.ftl
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@ -1,5 +1,6 @@
[#ftl] [#ftl]
[#-- @implicitly included --] [#-- @implicitly included --]
[#-- @ftlvariable name="baseUrl" type="java.lang.String" --]
[#-- @ftlvariable name="imgUrls" type="String" --] [#-- @ftlvariable name="imgUrls" type="String" --]
[#-- @ftlvariable name="textData" type="java.lang.String" --] [#-- @ftlvariable name="textData" type="java.lang.String" --]
[#-- @ftlvariable name="xmlContent" type="java.lang.String" --] [#-- @ftlvariable name="xmlContent" type="java.lang.String" --]

388
server/src/main/java/cn/keking/hutool/HexUtil.java
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package cn.keking.hutool;
import java.awt.*;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
/**
* 十六进制（简写为hex或下标16）在数学中是一种逢16进1的进位制，一般用数字0到9和字母A到F表示（其中:A~F即10~15）。<br>
* 例如十进制数57，在二进制写作111001，在16进制写作39。<br>
* 像java,c这样的语言为了区分十六进制和十进制数值,会在十六进制数的前面加上 0x,比如0x20是十进制的32,而不是十进制的20<br>
* <p>
* 参考：https://my.oschina.net/xinxingegeya/blog/287476
*
* @author Looly
*/
public class HexUtil {
/**
* 用于建立十六进制字符的输出的小写字符数组
*/
private static final char[] DIGITS_LOWER = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
/**
* 用于建立十六进制字符的输出的大写字符数组
*/
private static final char[] DIGITS_UPPER = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
/**
* 判断给定字符串是否为16进制数<br>
* 如果是，需要使用对应数字类型对象的<code>decode</code>方法解码<br>
* 例如：{@code Integer.decode}方法解码int类型的16进制数字
*
* @param value 值
* @return 是否为16进制
*/
public static boolean isHexNumber(String value) {
final int index = (value.startsWith("-") ? 1 : 0);
if (value.startsWith("0x", index) || value.startsWith("0X", index) || value.startsWith("#", index)) {
try {
Long.decode(value);
} catch (NumberFormatException e) {
return false;
}
return true;
} else {
return false;
}
}
// ---------------------------------------------------------------------------------------------------- encode
/**
* 将字节数组转换为十六进制字符数组
*
* @param data byte[]
* @return 十六进制char[]
*/
public static char[] encodeHex(byte[] data) {
return encodeHex(data, true);
}
/**
* 将字节数组转换为十六进制字符数组
*
* @param str 字符串
* @param charset 编码
* @return 十六进制char[]
*/
public static char[] encodeHex(String str, Charset charset) {
return encodeHex(StrUtil.bytes(str, charset), true);
}
/**
* 将字节数组转换为十六进制字符数组
*
* @param data byte[]
* @param toLowerCase <code>true</code> 传换成小写格式 ， <code>false</code> 传换成大写格式
* @return 十六进制char[]
*/
public static char[] encodeHex(byte[] data, boolean toLowerCase) {
return encodeHex(data, toLowerCase ? DIGITS_LOWER : DIGITS_UPPER);
}
/**
* 将字节数组转换为十六进制字符串
*
* @param data byte[]
* @return 十六进制String
*/
public static String encodeHexStr(byte[] data) {
return encodeHexStr(data, true);
}
/**
* 将字节数组转换为十六进制字符串，结果为小写
*
* @param data 被编码的字符串
* @param charset 编码
* @return 十六进制String
*/
public static String encodeHexStr(String data, Charset charset) {
return encodeHexStr(StrUtil.bytes(data, charset), true);
}
/**
* 将字节数组转换为十六进制字符串，结果为小写，默认编码是UTF-8
*
* @param data 被编码的字符串
* @return 十六进制String
*/
public static String encodeHexStr(String data) {
return encodeHexStr(data, StandardCharsets.UTF_8);
}
/**
* 将字节数组转换为十六进制字符串
*
* @param data byte[]
* @param toLowerCase <code>true</code> 传换成小写格式 ， <code>false</code> 传换成大写格式
* @return 十六进制String
*/
public static String encodeHexStr(byte[] data, boolean toLowerCase) {
return encodeHexStr(data, toLowerCase ? DIGITS_LOWER : DIGITS_UPPER);
}
// ---------------------------------------------------------------------------------------------------- decode
/**
* 将十六进制字符数组转换为字符串，默认编码UTF-8
*
* @param hexStr 十六进制String
* @return 字符串
*/
public static String decodeHexStr(String hexStr) {
return decodeHexStr(hexStr, StandardCharsets.UTF_8);
}
/**
* 将十六进制字符数组转换为字符串
*
* @param hexStr 十六进制String
* @param charset 编码
* @return 字符串
*/
public static String decodeHexStr(String hexStr, Charset charset) {
if (StrUtil.isEmpty(hexStr)) {
return hexStr;
}
return decodeHexStr(hexStr.toCharArray(), charset);
}
/**
* 将十六进制字符数组转换为字符串
*
* @param hexData 十六进制char[]
* @param charset 编码
* @return 字符串
*/
public static String decodeHexStr(char[] hexData, Charset charset) {
return StrUtil.str(decodeHex(hexData), charset);
}
/**
* 将十六进制字符数组转换为字节数组
*
* @param hexData 十六进制char[]
* @return byte[]
* @throws RuntimeException 如果源十六进制字符数组是一个奇怪的长度，将抛出运行时异常
*/
public static byte[] decodeHex(char[] hexData) {
int len = hexData.length;
if ((len & 0x01) != 0) {
throw new RuntimeException("Odd number of characters.");
}
byte[] out = new byte[len >> 1];
// two characters form the hex value.
for (int i = 0, j = 0; j < len; i++) {
int f = toDigit(hexData[j], j) << 4;
j++;
f = f | toDigit(hexData[j], j);
j++;
out[i] = (byte) (f & 0xFF);
}
return out;
}
/**
* 将十六进制字符串解码为byte[]
*
* @param hexStr 十六进制String
* @return byte[]
*/
public static byte[] decodeHex(String hexStr) {
if (StrUtil.isEmpty(hexStr)) {
return null;
}
return decodeHex(hexStr.toCharArray());
}
// ---------------------------------------------------------------------------------------- Color
/**
* 将{@link Color}编码为Hex形式
*
* @param color {@link Color}
* @return Hex字符串
* @since 3.0.8
*/
public static String encodeColor(Color color) {
return encodeColor(color, "#");
}
/**
* 将{@link Color}编码为Hex形式
*
* @param color {@link Color}
* @param prefix 前缀字符串，可以是#、0x等
* @return Hex字符串
* @since 3.0.8
*/
public static String encodeColor(Color color, String prefix) {
final StringBuilder builder = new StringBuilder(prefix);
String colorHex;
colorHex = Integer.toHexString(color.getRed());
if (1 == colorHex.length()) {
builder.append('0');
}
builder.append(colorHex);
colorHex = Integer.toHexString(color.getGreen());
if (1 == colorHex.length()) {
builder.append('0');
}
builder.append(colorHex);
colorHex = Integer.toHexString(color.getBlue());
if (1 == colorHex.length()) {
builder.append('0');
}
builder.append(colorHex);
return builder.toString();
}
/**
* 将Hex颜色值转为
*
* @param hexColor 16进制颜色值，可以以#开头，也可以用0x开头
* @return {@link Color}
* @since 3.0.8
*/
public static Color decodeColor(String hexColor) {
return Color.decode(hexColor);
}
/**
* 将指定int值转换为Unicode字符串形式，常用于特殊字符（例如汉字）转Unicode形式<br>
* 转换的字符串如果u后不足4位，则前面用0填充，例如：
*
* <pre>
* '我' =》\u4f60
* </pre>
*
* @param value int值，也可以是char
* @return Unicode表现形式
*/
public static String toUnicodeHex(int value) {
final StringBuilder builder = new StringBuilder(6);
builder.append("\\u");
String hex = toHex(value);
int len = hex.length();
if (len < 4) {
builder.append("0000", 0, 4 - len);// 不足4位补0
}
builder.append(hex);
return builder.toString();
}
/**
* 将指定char值转换为Unicode字符串形式，常用于特殊字符（例如汉字）转Unicode形式<br>
* 转换的字符串如果u后不足4位，则前面用0填充，例如：
*
* <pre>
* '我' =》\u4f60
* </pre>
*
* @param ch char值
* @return Unicode表现形式
* @since 4.0.1
*/
public static String toUnicodeHex(char ch) {
return "\\u" +//
DIGITS_LOWER[(ch >> 12) & 15] +//
DIGITS_LOWER[(ch >> 8) & 15] +//
DIGITS_LOWER[(ch >> 4) & 15] +//
DIGITS_LOWER[(ch) & 15];
}
/**
* 转为16进制字符串
*
* @param value int值
* @return 16进制字符串
* @since 4.4.1
*/
public static String toHex(int value) {
return Integer.toHexString(value);
}
/**
* 转为16进制字符串
*
* @param value int值
* @return 16进制字符串
* @since 4.4.1
*/
public static String toHex(long value) {
return Long.toHexString(value);
}
/**
* 将byte值转为16进制并添加到{@link StringBuilder}中
*
* @param builder {@link StringBuilder}
* @param b byte
* @param toLowerCase 是否使用小写
* @since 4.4.1
*/
public static void appendHex(StringBuilder builder, byte b, boolean toLowerCase) {
final char[] toDigits = toLowerCase ? DIGITS_LOWER : DIGITS_UPPER;
int high = (b & 0xf0) >>> 4;//高位
int low = b & 0x0f;//低位
builder.append(toDigits[high]);
builder.append(toDigits[low]);
}
// ---------------------------------------------------------------------------------------- Private method start
/**
* 将字节数组转换为十六进制字符串
*
* @param data byte[]
* @param toDigits 用于控制输出的char[]
* @return 十六进制String
*/
private static String encodeHexStr(byte[] data, char[] toDigits) {
return new String(encodeHex(data, toDigits));
}
/**
* 将字节数组转换为十六进制字符数组
*
* @param data byte[]
* @param toDigits 用于控制输出的char[]
* @return 十六进制char[]
*/
private static char[] encodeHex(byte[] data, char[] toDigits) {
final int len = data.length;
final char[] out = new char[len << 1];//len*2
// two characters from the hex value.
for (int i = 0, j = 0; i < len; i++) {
out[j++] = toDigits[(0xF0 & data[i]) >>> 4];// 高位
out[j++] = toDigits[0x0F & data[i]];// 低位
}
return out;
}
/**
* 将十六进制字符转换成一个整数
*
* @param ch 十六进制char
* @param index 十六进制字符在字符数组中的位置
* @return 一个整数
* @throws RuntimeException 当ch不是一个合法的十六进制字符时，抛出运行时异常
*/
private static int toDigit(char ch, int index) {
int digit = Character.digit(ch, 16);
if (digit == -1) {
throw new RuntimeException("Illegal hexadecimal character " + ch + " at index " + index);
}
return digit;
}
// ---------------------------------------------------------------------------------------- Private method end
}

283
server/src/main/java/cn/keking/hutool/StrUtil.java
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package cn.keking.hutool;
import java.nio.charset.Charset;
/**
* 字符串工具类
*
* @author xiaoleilu
*
*/
public class StrUtil {
public static final String EMPTY = "";
/**
* 是否空白符<br>
* 空白符包括空格、制表符、全角空格和不间断空格<br>
*
* @see Character#isWhitespace(int)
* @see Character#isSpaceChar(int)
* @param c 字符
* @return 是否空白符
* @since 4.0.10
*/
public static boolean isBlankChar(int c) {
return Character.isWhitespace(c) || Character.isSpaceChar(c) || c == '\ufeff' || c == '\u202a';
}
/**
* 是否空白符<br>
* 空白符包括空格、制表符、全角空格和不间断空格<br>
*
* @param c 字符
* @return 是否空白符
* @see Character#isWhitespace(int)
* @see Character#isSpaceChar(int)
* @since 4.0.10
*/
public static boolean isBlankChar(char c) {
return isBlankChar((int) c);
}
/**
* 字符串是否为空白 空白的定义如下： <br>
* 1、为null <br>
* 2、为不可见字符（如空格）<br>
* 3、""<br>
*
* @param str 被检测的字符串
* @return 是否为空
*/
public static boolean isBlank(CharSequence str) {
int length;
if ((str == null) || ((length = str.length()) == 0)) {
return true;
}
for (int i = 0; i < length; i++) {
// 只要有一个非空字符即为非空字符串
if (false == isBlankChar(str.charAt(i))) {
return false;
}
}
return true;
}
/**
* 字符串是否为空，空的定义如下:<br>
* 1、为null <br>
* 2、为""<br>
*
* @param str 被检测的字符串
* @return 是否为空
*/
public static boolean isEmpty(CharSequence str) {
return str == null || str.length() == 0;
}
/**
* 编码字符串
*
* @param str 字符串
* @param charset 字符集，如果此字段为空，则解码的结果取决于平台
* @return 编码后的字节码
*/
public static byte[] bytes(CharSequence str, Charset charset) {
if (str == null) {
return null;
}
if (null == charset) {
return str.toString().getBytes();
}
return str.toString().getBytes(charset);
}
/**
* {@link CharSequence} 转为字符串，null安全
*
* @param cs {@link CharSequence}
* @return 字符串
*/
public static String str(CharSequence cs) {
return null == cs ? null : cs.toString();
}
/**
* 解码字节码
*
* @param data 字符串
* @param charset 字符集，如果此字段为空，则解码的结果取决于平台
* @return 解码后的字符串
*/
public static String str(byte[] data, Charset charset) {
if (data == null) {
return null;
}
if (null == charset) {
return new String(data);
}
return new String(data, charset);
}
/**
* 改进JDK subString<br>
* index从0开始计算，最后一个字符为-1<br>
* 如果from和to位置一样，返回 "" <br>
* 如果from或to为负数，则按照length从后向前数位置，如果绝对值大于字符串长度，则from归到0，to归到length<br>
* 如果经过修正的index中from大于to，则互换from和to example: <br>
* abcdefgh 2 3 =》 c <br>
* abcdefgh 2 -3 =》 cde <br>
*
* @param str String
* @param fromIndex 开始的index（包括）
* @param toIndex 结束的index（不包括）
* @return 字串
*/
public static String sub(CharSequence str, int fromIndex, int toIndex) {
if (isEmpty(str)) {
return str(str);
}
int len = str.length();
if (fromIndex < 0) {
fromIndex = len + fromIndex;
if (fromIndex < 0) {
fromIndex = 0;
}
} else if (fromIndex > len) {
fromIndex = len;
}
if (toIndex < 0) {
toIndex = len + toIndex;
if (toIndex < 0) {
toIndex = len;
}
} else if (toIndex > len) {
toIndex = len;
}
if (toIndex < fromIndex) {
int tmp = fromIndex;
fromIndex = toIndex;
toIndex = tmp;
}
if (fromIndex == toIndex) {
return EMPTY;
}
return str.toString().substring(fromIndex, toIndex);
}
/**
* 切割指定位置之前部分的字符串
*
* @param string 字符串
* @param toIndex 切割到的位置（不包括）
* @return 切割后的剩余的前半部分字符串
*/
public static String subPre(CharSequence string, int toIndex) {
return sub(string, 0, toIndex);
}
/**
* 切割指定位置之后部分的字符串
*
* @param string 字符串
* @param fromIndex 切割开始的位置（包括）
* @return 切割后后剩余的后半部分字符串
*/
public static String subSuf(CharSequence string, int fromIndex) {
if (isEmpty(string)) {
return null;
}
return sub(string, fromIndex, string.length());
}
/**
* 指定范围内查找指定字符
*
* @param str 字符串
* @param searchChar 被查找的字符
* @param start 起始位置，如果小于0，从0开始查找
* @param end 终止位置，如果超过str.length()则默认查找到字符串末尾
* @return 位置
*/
public static int indexOf(final CharSequence str, char searchChar, int start, int end) {
final int len = str.length();
if (start < 0 || start > len) {
start = 0;
}
if (end > len || end < 0) {
end = len;
}
for (int i = start; i < end; i++) {
if (str.charAt(i) == searchChar) {
return i;
}
}
return -1;
}
/**
* 指定范围内查找指定字符
*
* @param str 字符串
* @param searchChar 被查找的字符
* @param start 起始位置，如果小于0，从0开始查找
* @return 位置
*/
public static int indexOf(final CharSequence str, char searchChar, int start) {
if (str instanceof String) {
return ((String) str).indexOf(searchChar, start);
} else {
return indexOf(str, searchChar, start, -1);
}
}
/**
* 指定范围内查找指定字符
*
* @param str 字符串
* @param searchChar 被查找的字符
* @return 位置
*/
public static int indexOf(final CharSequence str, char searchChar) {
return indexOf(str, searchChar, 0);
}
/**
* 如果字符串是<code>null</code>，则返回指定默认字符串，否则返回字符串本身。
*
* <pre>
* nullToDefault(null, &quot;default&quot;) = &quot;default&quot;
* nullToDefault(&quot;&quot;, &quot;default&quot;) = &quot;&quot;
* nullToDefault(&quot; &quot;, &quot;default&quot;) = &quot; &quot;
* nullToDefault(&quot;bat&quot;, &quot;default&quot;) = &quot;bat&quot;
* </pre>
*
* @param str 要转换的字符串
* @param defaultStr 默认字符串
*
* @return 字符串本身或指定的默认字符串
*/
public static String nullToDefault(CharSequence str, String defaultStr) {
return (str == null) ? defaultStr : str.toString();
}
/**
* 当给定字符串为null时，转换为Empty
*
* @param str 被转换的字符串
* @return 转换后的字符串
*/
public static String nullToEmpty(CharSequence str) {
return nullToDefault(str, EMPTY);
}
}

232
server/src/main/java/cn/keking/hutool/URLEncoder.java
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package cn.keking.hutool;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Serializable;
import java.nio.charset.Charset;
import java.util.BitSet;
/**
* URL编码，数据内容的类型是 application/x-www-form-urlencoded。
*
* <pre>
* 1.字符"a"-"z"，"A"-"Z"，"0"-"9"，"."，"-"，"*"，和"_" 都不会被编码;
* 2.将空格转换为%20 ;
* 3.将非文本内容转换成"%xy"的形式,xy是两位16进制的数值;
* 4.在每个 name=value 对之间放置 &amp; 符号。
* </pre>
*
* @author looly,
*
*/
public class URLEncoder implements Serializable{
private static final long serialVersionUID = 1L;
// --------------------------------------------------------------------------------------------- Static method start
/**
* 默认{@link URLEncoder}<br>
* 默认的编码器针对URI路径编码，定义如下：
*
* <pre>
* pchar = unreserved（不处理） / pct-encoded / sub-delims（子分隔符） / ":" / "@"
* unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
* sub-delims = "!" / "$" / "&amp;" / "'" / "(" / ")" / "*" / "+" / "," / ";" / "="
* </pre>
*/
public static final URLEncoder DEFAULT = createDefault();
/**
* 用于查询语句的{@link URLEncoder}<br>
* 编码器针对URI路径编码，定义如下：
*
* <pre>
* 0x20 ' ' =》 '+'
* 0x2A, 0x2D, 0x2E, 0x30 to 0x39, 0x41 to 0x5A, 0x5F, 0x61 to 0x7A as-is
* '*', '-', '.', '0' to '9', 'A' to 'Z', '_', 'a' to 'z' Also '=' and '&amp;' 不编码
* 其它编码为 %nn 形式
* </pre>
*
* 详细见：https://www.w3.org/TR/html5/forms.html#application/x-www-form-urlencoded-encoding-algorithm
*/
public static final URLEncoder QUERY = createQuery();
/**
* 创建默认{@link URLEncoder}<br>
* 默认的编码器针对URI路径编码，定义如下：
*
* <pre>
* pchar = unreserved（不处理） / pct-encoded / sub-delims（子分隔符） / ":" / "@"
* unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
* sub-delims = "!" / "$" / "&amp;" / "'" / "(" / ")" / "*" / "+" / "," / ";" / "="
* </pre>
*
* @return {@link URLEncoder}
*/
public static URLEncoder createDefault() {
final URLEncoder encoder = new URLEncoder();
encoder.addSafeCharacter('-');
encoder.addSafeCharacter('.');
encoder.addSafeCharacter('_');
encoder.addSafeCharacter('~');
// Add the sub-delims
encoder.addSafeCharacter('!');
encoder.addSafeCharacter('$');
encoder.addSafeCharacter('&');
encoder.addSafeCharacter('\'');
encoder.addSafeCharacter('(');
encoder.addSafeCharacter(')');
encoder.addSafeCharacter('*');
encoder.addSafeCharacter('+');
encoder.addSafeCharacter(',');
encoder.addSafeCharacter(';');
encoder.addSafeCharacter('=');
// Add the remaining literals
encoder.addSafeCharacter(':');
encoder.addSafeCharacter('@');
// Add '/' so it isn't encoded when we encode a path
encoder.addSafeCharacter('/');
return encoder;
}
/**
* 创建用于查询语句的{@link URLEncoder}<br>
* 编码器针对URI路径编码，定义如下：
*
* <pre>
* 0x20 ' ' =》 '+'
* 0x2A, 0x2D, 0x2E, 0x30 to 0x39, 0x41 to 0x5A, 0x5F, 0x61 to 0x7A as-is
* '*', '-', '.', '0' to '9', 'A' to 'Z', '_', 'a' to 'z' Also '=' and '&amp;' 不编码
* 其它编码为 %nn 形式
* </pre>
*
* 详细见：https://www.w3.org/TR/html5/forms.html#application/x-www-form-urlencoded-encoding-algorithm
*
* @return {@link URLEncoder}
*/
public static URLEncoder createQuery() {
final URLEncoder encoder = new URLEncoder();
// Special encoding for space
encoder.setEncodeSpaceAsPlus(true);
// Alpha and digit are safe by default
// Add the other permitted characters
encoder.addSafeCharacter('*');
encoder.addSafeCharacter('-');
encoder.addSafeCharacter('.');
encoder.addSafeCharacter('_');
encoder.addSafeCharacter('=');
encoder.addSafeCharacter('&');
return encoder;
}
// --------------------------------------------------------------------------------------------- Static method end
/** 存放安全编码 */
private final BitSet safeCharacters;
/** 是否编码空格为+ */
private boolean encodeSpaceAsPlus = false;
/**
* 构造<br>
*
* [a-zA-Z0-9]默认不被编码
*/
public URLEncoder() {
this(new BitSet(256));
for (char i = 'a'; i <= 'z'; i++) {
addSafeCharacter(i);
}
for (char i = 'A'; i <= 'Z'; i++) {
addSafeCharacter(i);
}
for (char i = '0'; i <= '9'; i++) {
addSafeCharacter(i);
}
}
/**
* 构造
*
* @param safeCharacters 安全字符，安全字符不被编码
*/
private URLEncoder(BitSet safeCharacters) {
this.safeCharacters = safeCharacters;
}
/**
* 增加安全字符<br>
* 安全字符不被编码
*
* @param c 字符
*/
public void addSafeCharacter(char c) {
safeCharacters.set(c);
}
/**
* 移除安全字符<br>
* 安全字符不被编码
*
* @param c 字符
*/
public void removeSafeCharacter(char c) {
safeCharacters.clear(c);
}
/**
* 是否将空格编码为+
*
* @param encodeSpaceAsPlus 是否将空格编码为+
*/
public void setEncodeSpaceAsPlus(boolean encodeSpaceAsPlus) {
this.encodeSpaceAsPlus = encodeSpaceAsPlus;
}
/**
* 将URL中的字符串编码为%形式
*
* @param path 需要编码的字符串
* @param charset 编码
*
* @return 编码后的字符串
*/
public String encode(String path, Charset charset) {
int maxBytesPerChar = 10;
final StringBuilder rewrittenPath = new StringBuilder(path.length());
ByteArrayOutputStream buf = new ByteArrayOutputStream(maxBytesPerChar);
OutputStreamWriter writer = new OutputStreamWriter(buf, charset);
int c;
for (int i = 0; i < path.length(); i++) {
c = path.charAt(i);
if (safeCharacters.get(c)) {
rewrittenPath.append((char) c);
} else if (encodeSpaceAsPlus && c == ' ') {
// 对于空格单独处理
rewrittenPath.append('+');
} else {
// convert to external encoding before hex conversion
try {
writer.write((char) c);
writer.flush();
} catch (IOException e) {
buf.reset();
continue;
}
byte[] ba = buf.toByteArray();
for (int j = 0; j < ba.length; j++) {
// Converting each byte in the buffer
byte toEncode = ba[j];
rewrittenPath.append('%');
HexUtil.appendHex(rewrittenPath, toEncode, false);
}
buf.reset();
}
}
return rewrittenPath.toString();
}
}

74
server/src/main/java/cn/keking/hutool/URLUtil.java
View File

@ -1,74 +0,0 @@
package cn.keking.hutool;
import java.nio.charset.StandardCharsets;
/**
* 统一资源定位符相关工具类
*
* @author xiaoleilu
*
*/
public class URLUtil {
/**
* 标准化URL字符串，包括：
*
* <pre>
* 1. 多个/替换为一个
* </pre>
*
* @param url URL字符串
* @return 标准化后的URL字符串
*/
public static String normalize(String url) {
return normalize(url, false, false);
}
/**
* 标准化URL字符串，包括：
*
* <pre>
* 1. 多个/替换为一个
* </pre>
*
* @param url URL字符串
* @param isEncodeBody 是否对URL中body部分的中文和特殊字符做转义（不包括http:和/）
* @param isEncodeParam 是否对URL中参数部分的中文和特殊字符做转义
* @return 标准化后的URL字符串
* @since 4.4.1
*/
public static String normalize(String url, boolean isEncodeBody, boolean isEncodeParam) {
if (StrUtil.isBlank(url)) {
return url;
}
final int sepIndex = url.indexOf("://");
String pre;
String body;
if (sepIndex > 0) {
pre = StrUtil.subPre(url, sepIndex + 3);
body = StrUtil.subSuf(url, sepIndex + 3);
} else {
pre = "http://";
body = url;
}
final int paramsSepIndex = StrUtil.indexOf(body, '?');
String params = null;
if (paramsSepIndex > 0) {
params = StrUtil.subSuf(body, paramsSepIndex + 1);
body = StrUtil.subPre(body, paramsSepIndex);
}
// 去除开头的\或者/
body = body.replaceAll("^[\\\\/]+", StrUtil.EMPTY);
// 替换多个\或/为单个/
body = body.replace("\\", "/").replaceAll("//+", "/");
if (isEncodeBody) {
body = URLEncoder.DEFAULT.encode(body, StandardCharsets.UTF_8);
if (params != null) {
params = "?" + URLEncoder.DEFAULT.encode(params, StandardCharsets.UTF_8);
}
}
return pre + body + StrUtil.nullToEmpty(params);
}
}

53
server/src/main/java/cn/keking/service/FileHandlerService.java
View File

@ -4,13 +4,13 @@ import cn.keking.config.ConfigConstants;
import cn.keking.model.FileAttribute; import cn.keking.model.FileAttribute;
import cn.keking.model.FileType; import cn.keking.model.FileType;
import cn.keking.service.cache.CacheService; import cn.keking.service.cache.CacheService;
import cn.keking.utils.WebUtils;
import org.springframework.stereotype.Component; import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils; import org.springframework.util.StringUtils;
import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletRequest;
import java.io.*; import java.io.*;
import java.nio.charset.StandardCharsets; import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.List; import java.util.List;
import java.util.Map; import java.util.Map;
@ -189,55 +189,6 @@ public class FileHandlerService {
return fileName.substring(fileName.lastIndexOf(".") + 1); return fileName.substring(fileName.lastIndexOf(".") + 1);
} }
/**
* 获取url中的参数
*
* @param url url
* @param name 参数名
* @return 参数值
*/
public String getUrlParameterReg(String url, String name) {
Map<String, String> mapRequest = new HashMap<>();
String strUrlParam = truncateUrlPage(url);
if (strUrlParam == null) {
return "";
}
//每个键值为一组
String[] arrSplit = strUrlParam.split("[&]");
for (String strSplit : arrSplit) {
String[] arrSplitEqual = strSplit.split("[=]");
//解析出键值
if (arrSplitEqual.length > 1) {
//正确解析
mapRequest.put(arrSplitEqual[0], arrSplitEqual[1]);
} else if (!arrSplitEqual[0].equals("")) {
//只有参数没有值，不加入
mapRequest.put(arrSplitEqual[0], "");
}
}
return mapRequest.get(name);
}
/**
* 去掉url中的路径，留下请求参数部分
*
* @param strURL url地址
* @return url请求参数部分
*/
private String truncateUrlPage(String strURL) {
String strAllParam = null;
strURL = strURL.trim();
String[] arrSplit = strURL.split("[?]");
if (strURL.length() > 1) {
if (arrSplit.length > 1) {
if (arrSplit[1] != null) {
strAllParam = arrSplit[1];
}
}
}
return strAllParam;
}
/** /**
* 获取文件属性 * 获取文件属性
* *
@ -249,7 +200,7 @@ public class FileHandlerService {
String suffix; String suffix;
FileType type; FileType type;
String fileName; String fileName;
String fullFileName = this.getUrlParameterReg(url, "fullfilename"); String fullFileName = WebUtils.getUrlParameterReg(url, "fullfilename");
if (StringUtils.hasText(fullFileName)) { if (StringUtils.hasText(fullFileName)) {
fileName = fullFileName; fileName = fullFileName;
type = this.typeFromFileName(fullFileName); type = this.typeFromFileName(fullFileName);

12
server/src/main/java/cn/keking/service/impl/CadFilePreviewImpl.java
View File

@ -23,19 +23,11 @@ import static cn.keking.service.impl.OfficeFilePreviewImpl.getPreviewType;
public class CadFilePreviewImpl implements FilePreview { public class CadFilePreviewImpl implements FilePreview {
private final FileHandlerService fileHandlerService; private final FileHandlerService fileHandlerService;
private final DownloadUtils downloadUtils;
private final CadUtils cadUtils; private final CadUtils cadUtils;
private final PdfUtils pdfUtils; private final PdfUtils pdfUtils;
public CadFilePreviewImpl(FileHandlerService fileHandlerService, public CadFilePreviewImpl(FileHandlerService fileHandlerService, CadUtils cadUtils, PdfUtils pdfUtils) {
DownloadUtils downloadUtils,
CadUtils cadUtils,
PdfUtils pdfUtils) {
this.fileHandlerService = fileHandlerService; this.fileHandlerService = fileHandlerService;
this.downloadUtils = downloadUtils;
this.cadUtils = cadUtils; this.cadUtils = cadUtils;
this.pdfUtils = pdfUtils; this.pdfUtils = pdfUtils;
@ -58,7 +50,7 @@ public class CadFilePreviewImpl implements FilePreview {
// 判断之前是否已转换过，如果转换过，直接返回，否则执行转换 // 判断之前是否已转换过，如果转换过，直接返回，否则执行转换
if (!fileHandlerService.listConvertedFiles().containsKey(pdfName) || !ConfigConstants.isCacheEnabled()) { if (!fileHandlerService.listConvertedFiles().containsKey(pdfName) || !ConfigConstants.isCacheEnabled()) {
String filePath; String filePath;
ReturnResponse<String> response = downloadUtils.downLoad(fileAttribute, null); ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, null);
if (0 != response.getCode()) { if (0 != response.getCode()) {
model.addAttribute("fileType", suffix); model.addAttribute("fileType", suffix);
model.addAttribute("msg", response.getMsg()); model.addAttribute("msg", response.getMsg());

6
server/src/main/java/cn/keking/service/impl/CompressFilePreviewImpl.java
View File

@ -19,12 +19,10 @@ import org.springframework.util.StringUtils;
public class CompressFilePreviewImpl implements FilePreview { public class CompressFilePreviewImpl implements FilePreview {
private final FileHandlerService fileHandlerService; private final FileHandlerService fileHandlerService;
private final DownloadUtils downloadUtils;
private final CompressFileReader compressFileReader; private final CompressFileReader compressFileReader;
public CompressFilePreviewImpl(FileHandlerService fileHandlerService, DownloadUtils downloadUtils, CompressFileReader compressFileReader) { public CompressFilePreviewImpl(FileHandlerService fileHandlerService, CompressFileReader compressFileReader) {
this.fileHandlerService = fileHandlerService; this.fileHandlerService = fileHandlerService;
this.downloadUtils = downloadUtils;
this.compressFileReader = compressFileReader; this.compressFileReader = compressFileReader;
} }
@ -35,7 +33,7 @@ public class CompressFilePreviewImpl implements FilePreview {
String fileTree = null; String fileTree = null;
// 判断文件名是否存在(redis缓存读取) // 判断文件名是否存在(redis缓存读取)
if (!StringUtils.hasText(fileHandlerService.getConvertedFile(fileName)) || !ConfigConstants.isCacheEnabled()) { if (!StringUtils.hasText(fileHandlerService.getConvertedFile(fileName)) || !ConfigConstants.isCacheEnabled()) {
ReturnResponse<String> response = downloadUtils.downLoad(fileAttribute, fileName); ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, fileName);
if (0 != response.getCode()) { if (0 != response.getCode()) {
model.addAttribute("fileType", suffix); model.addAttribute("fileType", suffix);
model.addAttribute("msg", response.getMsg()); model.addAttribute("msg", response.getMsg());

8
server/src/main/java/cn/keking/service/impl/MediaFilePreviewImpl.java
View File

@ -17,13 +17,9 @@ import org.springframework.ui.Model;
@Service @Service
public class MediaFilePreviewImpl implements FilePreview { public class MediaFilePreviewImpl implements FilePreview {
private final DownloadUtils downloadUtils;
private final FileHandlerService fileHandlerService; private final FileHandlerService fileHandlerService;
public MediaFilePreviewImpl(DownloadUtils downloadUtils, public MediaFilePreviewImpl(FileHandlerService fileHandlerService) {
FileHandlerService fileHandlerService) {
this.downloadUtils = downloadUtils;
this.fileHandlerService = fileHandlerService; this.fileHandlerService = fileHandlerService;
} }
@ -31,7 +27,7 @@ public class MediaFilePreviewImpl implements FilePreview {
public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) { public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
// 不是http开头，浏览器不能直接访问，需下载到本地 // 不是http开头，浏览器不能直接访问，需下载到本地
if (url != null && !url.toLowerCase().startsWith("http")) { if (url != null && !url.toLowerCase().startsWith("http")) {
ReturnResponse<String> response = downloadUtils.downLoad(fileAttribute, fileAttribute.getName()); ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, fileAttribute.getName());
if (0 != response.getCode()) { if (0 != response.getCode()) {
model.addAttribute("fileType", fileAttribute.getSuffix()); model.addAttribute("fileType", fileAttribute.getSuffix());
model.addAttribute("msg", response.getMsg()); model.addAttribute("msg", response.getMsg());

6
server/src/main/java/cn/keking/service/impl/OfficeFilePreviewImpl.java
View File

@ -24,13 +24,11 @@ public class OfficeFilePreviewImpl implements FilePreview {
private final FileHandlerService fileHandlerService; private final FileHandlerService fileHandlerService;
private final PdfUtils pdfUtils; private final PdfUtils pdfUtils;
private final DownloadUtils downloadUtils;
private final OfficeToPdfService officeToPdfService; private final OfficeToPdfService officeToPdfService;
public OfficeFilePreviewImpl(FileHandlerService fileHandlerService, PdfUtils pdfUtils, DownloadUtils downloadUtils, OfficeToPdfService officeToPdfService) { public OfficeFilePreviewImpl(FileHandlerService fileHandlerService, PdfUtils pdfUtils, OfficeToPdfService officeToPdfService) {
this.fileHandlerService = fileHandlerService; this.fileHandlerService = fileHandlerService;
this.pdfUtils = pdfUtils; this.pdfUtils = pdfUtils;
this.downloadUtils = downloadUtils;
this.officeToPdfService = officeToPdfService; this.officeToPdfService = officeToPdfService;
} }
@ -51,7 +49,7 @@ public class OfficeFilePreviewImpl implements FilePreview {
// 判断之前是否已转换过，如果转换过，直接返回，否则执行转换 // 判断之前是否已转换过，如果转换过，直接返回，否则执行转换
if (!fileHandlerService.listConvertedFiles().containsKey(pdfName) || !ConfigConstants.isCacheEnabled()) { if (!fileHandlerService.listConvertedFiles().containsKey(pdfName) || !ConfigConstants.isCacheEnabled()) {
String filePath; String filePath;
ReturnResponse<String> response = downloadUtils.downLoad(fileAttribute, null); ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, null);
if (0 != response.getCode()) { if (0 != response.getCode()) {
model.addAttribute("fileType", suffix); model.addAttribute("fileType", suffix);
model.addAttribute("msg", response.getMsg()); model.addAttribute("msg", response.getMsg());

13
server/src/main/java/cn/keking/service/impl/PdfFilePreviewImpl.java
View File

@ -21,19 +21,12 @@ import java.util.List;
public class PdfFilePreviewImpl implements FilePreview { public class PdfFilePreviewImpl implements FilePreview {
private final FileHandlerService fileHandlerService; private final FileHandlerService fileHandlerService;
private final PdfUtils pdfUtils; private final PdfUtils pdfUtils;
private final DownloadUtils downloadUtils;
private static final String FILE_DIR = ConfigConstants.getFileDir(); private static final String FILE_DIR = ConfigConstants.getFileDir();
public PdfFilePreviewImpl(FileHandlerService fileHandlerService, public PdfFilePreviewImpl(FileHandlerService fileHandlerService, PdfUtils pdfUtils) {
PdfUtils pdfUtils,
DownloadUtils downloadUtils) {
this.fileHandlerService = fileHandlerService; this.fileHandlerService = fileHandlerService;
this.pdfUtils = pdfUtils; this.pdfUtils = pdfUtils;
this.downloadUtils = downloadUtils;
} }
@Override @Override
@ -47,7 +40,7 @@ public class PdfFilePreviewImpl implements FilePreview {
if (OfficeFilePreviewImpl.OFFICE_PREVIEW_TYPE_IMAGE.equals(officePreviewType) || OfficeFilePreviewImpl.OFFICE_PREVIEW_TYPE_ALL_IMAGES.equals(officePreviewType)) { if (OfficeFilePreviewImpl.OFFICE_PREVIEW_TYPE_IMAGE.equals(officePreviewType) || OfficeFilePreviewImpl.OFFICE_PREVIEW_TYPE_ALL_IMAGES.equals(officePreviewType)) {
//当文件不存在时，就去下载 //当文件不存在时，就去下载
if (!fileHandlerService.listConvertedFiles().containsKey(pdfName) || !ConfigConstants.isCacheEnabled()) { if (!fileHandlerService.listConvertedFiles().containsKey(pdfName) || !ConfigConstants.isCacheEnabled()) {
ReturnResponse<String> response = downloadUtils.downLoad(fileAttribute, fileName); ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, fileName);
if (0 != response.getCode()) { if (0 != response.getCode()) {
model.addAttribute("fileType", suffix); model.addAttribute("fileType", suffix);
model.addAttribute("msg", response.getMsg()); model.addAttribute("msg", response.getMsg());
@ -76,7 +69,7 @@ public class PdfFilePreviewImpl implements FilePreview {
// 不是http开头，浏览器不能直接访问，需下载到本地 // 不是http开头，浏览器不能直接访问，需下载到本地
if (url != null && !url.toLowerCase().startsWith("http")) { if (url != null && !url.toLowerCase().startsWith("http")) {
if (!fileHandlerService.listConvertedFiles().containsKey(pdfName) || !ConfigConstants.isCacheEnabled()) { if (!fileHandlerService.listConvertedFiles().containsKey(pdfName) || !ConfigConstants.isCacheEnabled()) {
ReturnResponse<String> response = downloadUtils.downLoad(fileAttribute, pdfName); ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, pdfName);
if (0 != response.getCode()) { if (0 != response.getCode()) {
model.addAttribute("fileType", suffix); model.addAttribute("fileType", suffix);
model.addAttribute("msg", response.getMsg()); model.addAttribute("msg", response.getMsg());

8
server/src/main/java/cn/keking/service/impl/PictureFilePreviewImpl.java
View File

@ -20,12 +20,8 @@ public class PictureFilePreviewImpl implements FilePreview {
private final FileHandlerService fileHandlerService; private final FileHandlerService fileHandlerService;
private final DownloadUtils downloadUtils; public PictureFilePreviewImpl(FileHandlerService fileHandlerService) {
public PictureFilePreviewImpl(FileHandlerService fileHandlerService,
DownloadUtils downloadUtils) {
this.fileHandlerService = fileHandlerService; this.fileHandlerService = fileHandlerService;
this.downloadUtils = downloadUtils;
} }
@Override @Override
@ -39,7 +35,7 @@ public class PictureFilePreviewImpl implements FilePreview {
} }
// 不是http开头，浏览器不能直接访问，需下载到本地 // 不是http开头，浏览器不能直接访问，需下载到本地
if (url != null && !url.toLowerCase().startsWith("http")) { if (url != null && !url.toLowerCase().startsWith("http")) {
ReturnResponse<String> response = downloadUtils.downLoad(fileAttribute, null); ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, null);
if (0 != response.getCode()) { if (0 != response.getCode()) {
model.addAttribute("fileType", fileAttribute.getSuffix()); model.addAttribute("fileType", fileAttribute.getSuffix());
model.addAttribute("msg", response.getMsg()); model.addAttribute("msg", response.getMsg());

8
server/src/main/java/cn/keking/service/impl/SimTextFilePreviewImpl.java
View File

@ -23,16 +23,10 @@ public class SimTextFilePreviewImpl implements FilePreview {
public static final String TEXT_TYPE = "textType"; public static final String TEXT_TYPE = "textType";
public static final String DEFAULT_TEXT_TYPE = "simText"; public static final String DEFAULT_TEXT_TYPE = "simText";
private final DownloadUtils downloadUtils;
public SimTextFilePreviewImpl(DownloadUtils downloadUtils) {
this.downloadUtils = downloadUtils;
}
@Override @Override
public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) { public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
String fileName = fileAttribute.getName(); String fileName = fileAttribute.getName();
ReturnResponse<String> response = downloadUtils.downLoad(fileAttribute, fileName); ReturnResponse<String> response = DownloadUtils.downLoad(fileAttribute, fileName);
if (0 != response.getCode()) { if (0 != response.getCode()) {
model.addAttribute("msg", response.getMsg()); model.addAttribute("msg", response.getMsg());
model.addAttribute("fileType", fileAttribute.getSuffix()); model.addAttribute("fileType", fileAttribute.getSuffix());

34
server/src/main/java/cn/keking/utils/DownloadUtils.java
View File

@ -1,14 +1,11 @@
package cn.keking.utils; package cn.keking.utils;
import cn.keking.config.ConfigConstants; import cn.keking.config.ConfigConstants;
import cn.keking.hutool.URLUtil;
import cn.keking.model.FileAttribute; import cn.keking.model.FileAttribute;
import cn.keking.model.FileType; import cn.keking.model.FileType;
import cn.keking.model.ReturnResponse; import cn.keking.model.ReturnResponse;
import cn.keking.service.FileHandlerService;
import org.slf4j.Logger; import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import java.io.*; import java.io.*;
import java.net.*; import java.net.*;
@ -18,27 +15,20 @@ import java.util.UUID;
/** /**
* @author yudian-it * @author yudian-it
*/ */
@Component
public class DownloadUtils { public class DownloadUtils {
private final static Logger logger = LoggerFactory.getLogger(DownloadUtils.class); private final static Logger logger = LoggerFactory.getLogger(DownloadUtils.class);
private final String fileDir = ConfigConstants.getFileDir(); private static final String fileDir = ConfigConstants.getFileDir();
private static final String URL_PARAM_FTP_USERNAME = "ftp.username"; private static final String URL_PARAM_FTP_USERNAME = "ftp.username";
private static final String URL_PARAM_FTP_PASSWORD = "ftp.password"; private static final String URL_PARAM_FTP_PASSWORD = "ftp.password";
private static final String URL_PARAM_FTP_CONTROL_ENCODING = "ftp.control.encoding"; private static final String URL_PARAM_FTP_CONTROL_ENCODING = "ftp.control.encoding";
private final FileHandlerService fileHandlerService;
public DownloadUtils(FileHandlerService fileHandlerService) {
this.fileHandlerService = fileHandlerService;
}
/** /**
* @param fileAttribute fileAttribute * @param fileAttribute fileAttribute
* @param fileName 文件名 * @param fileName 文件名
* @return 本地文件绝对路径 * @return 本地文件绝对路径
*/ */
public ReturnResponse<String> downLoad(FileAttribute fileAttribute, String fileName) { public static ReturnResponse<String> downLoad(FileAttribute fileAttribute, String fileName) {
String urlStr = fileAttribute.getUrl(); String urlStr = fileAttribute.getUrl();
String type = fileAttribute.getSuffix(); String type = fileAttribute.getSuffix();
ReturnResponse<String> response = new ReturnResponse<>(0, "下载成功!!!", ""); ReturnResponse<String> response = new ReturnResponse<>(0, "下载成功!!!", "");
@ -60,9 +50,9 @@ public class DownloadUtils {
OutputStream os = new FileOutputStream(realPath); OutputStream os = new FileOutputStream(realPath);
saveBytesToOutStream(bytes, os); saveBytesToOutStream(bytes, os);
} else if (url.getProtocol() != null && "ftp".equalsIgnoreCase(url.getProtocol())) { } else if (url.getProtocol() != null && "ftp".equalsIgnoreCase(url.getProtocol())) {
String ftpUsername = fileHandlerService.getUrlParameterReg(fileAttribute.getUrl(), URL_PARAM_FTP_USERNAME); String ftpUsername = WebUtils.getUrlParameterReg(fileAttribute.getUrl(), URL_PARAM_FTP_USERNAME);
String ftpPassword = fileHandlerService.getUrlParameterReg(fileAttribute.getUrl(), URL_PARAM_FTP_PASSWORD); String ftpPassword = WebUtils.getUrlParameterReg(fileAttribute.getUrl(), URL_PARAM_FTP_PASSWORD);
String ftpControlEncoding = fileHandlerService.getUrlParameterReg(fileAttribute.getUrl(), URL_PARAM_FTP_CONTROL_ENCODING); String ftpControlEncoding = WebUtils.getUrlParameterReg(fileAttribute.getUrl(), URL_PARAM_FTP_CONTROL_ENCODING);
FtpUtils.download(fileAttribute.getUrl(), realPath, ftpUsername, ftpPassword, ftpControlEncoding); FtpUtils.download(fileAttribute.getUrl(), realPath, ftpUsername, ftpPassword, ftpControlEncoding);
} else { } else {
response.setCode(1); response.setCode(1);
@ -72,7 +62,7 @@ public class DownloadUtils {
response.setContent(realPath); response.setContent(realPath);
response.setMsg(fileName); response.setMsg(fileName);
if (FileType.simText.equals(fileAttribute.getType())) { if (FileType.simText.equals(fileAttribute.getType())) {
this.convertTextPlainFileCharsetToUtf8(realPath); convertTextPlainFileCharsetToUtf8(realPath);
} }
return response; return response;
} catch (IOException e) { } catch (IOException e) {
@ -88,10 +78,10 @@ public class DownloadUtils {
} }
} }
public byte[] getBytesFromUrl(String urlStr) throws IOException { public static byte[] getBytesFromUrl(String urlStr) throws IOException {
InputStream is = getInputStreamFromUrl(urlStr); InputStream is = getInputStreamFromUrl(urlStr);
if (is == null) { if (is == null) {
urlStr = URLUtil.normalize(urlStr, true, true); // urlStr = URLUtil.normalize(urlStr, true, true);
is = getInputStreamFromUrl(urlStr); is = getInputStreamFromUrl(urlStr);
if (is == null) { if (is == null) {
logger.error("文件下载异常：url：{}", urlStr); logger.error("文件下载异常：url：{}", urlStr);
@ -101,12 +91,12 @@ public class DownloadUtils {
return getBytesFromStream(is); return getBytesFromStream(is);
} }
public void saveBytesToOutStream(byte[] b, OutputStream os) throws IOException { public static void saveBytesToOutStream(byte[] b, OutputStream os) throws IOException {
os.write(b); os.write(b);
os.close(); os.close();
} }
private InputStream getInputStreamFromUrl(String urlStr) { private static InputStream getInputStreamFromUrl(String urlStr) {
try { try {
URL url = new URL(urlStr); URL url = new URL(urlStr);
URLConnection connection = url.openConnection(); URLConnection connection = url.openConnection();
@ -120,7 +110,7 @@ public class DownloadUtils {
} }
} }
private byte[] getBytesFromStream(InputStream is) throws IOException { private static byte[] getBytesFromStream(InputStream is) throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream(); ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] buffer = new byte[1024]; byte[] buffer = new byte[1024];
int len; int len;
@ -139,7 +129,7 @@ public class DownloadUtils {
* *
* @param filePath 文件路径 * @param filePath 文件路径
*/ */
private void convertTextPlainFileCharsetToUtf8(String filePath) throws IOException { private static void convertTextPlainFileCharsetToUtf8(String filePath) throws IOException {
File sourceFile = new File(filePath); File sourceFile = new File(filePath);
if (sourceFile.exists() && sourceFile.isFile() && sourceFile.canRead()) { if (sourceFile.exists() && sourceFile.isFile() && sourceFile.canRead()) {
String encoding = FileUtils.getFileEncode(filePath); String encoding = FileUtils.getFileEncode(filePath);

60
server/src/main/java/cn/keking/utils/WebUtils.java Normal file
View File

@ -0,0 +1,60 @@
package cn.keking.utils;
import java.util.HashMap;
import java.util.Map;
/**
* @author : kl
* create : 2020-12-27 1:30 上午
**/
public class WebUtils {
/**
* 获取url中的参数
*
* @param url url
* @param name 参数名
* @return 参数值
*/
public static String getUrlParameterReg(String url, String name) {
Map<String, String> mapRequest = new HashMap<>();
String strUrlParam = truncateUrlPage(url);
if (strUrlParam == null) {
return "";
}
//每个键值为一组
String[] arrSplit = strUrlParam.split("[&]");
for (String strSplit : arrSplit) {
String[] arrSplitEqual = strSplit.split("[=]");
//解析出键值
if (arrSplitEqual.length > 1) {
//正确解析
mapRequest.put(arrSplitEqual[0], arrSplitEqual[1]);
} else if (!arrSplitEqual[0].equals("")) {
//只有参数没有值，不加入
mapRequest.put(arrSplitEqual[0], "");
}
}
return mapRequest.get(name);
}
/**
* 去掉url中的路径，留下请求参数部分
*
* @param strURL url地址
* @return url请求参数部分
*/
private static String truncateUrlPage(String strURL) {
String strAllParam = null;
strURL = strURL.trim();
String[] arrSplit = strURL.split("[?]");
if (strURL.length() > 1) {
if (arrSplit.length > 1) {
if (arrSplit[1] != null) {
strAllParam = arrSplit[1];
}
}
}
return strAllParam;
}
}

10
server/src/main/java/cn/keking/web/controller/FileController.java
View File

@ -52,8 +52,8 @@ public class FileController {
return new ObjectMapper().writeValueAsString(new ReturnResponse<String>(1, "存在同名文件，请先删除原有文件再次上传", null)); return new ObjectMapper().writeValueAsString(new ReturnResponse<String>(1, "存在同名文件，请先删除原有文件再次上传", null));
} }
File outFile = new File(fileDir + demoPath); File outFile = new File(fileDir + demoPath);
if (!outFile.exists()) { if (!outFile.exists() && !outFile.mkdirs()) {
outFile.mkdirs(); logger.error("创建文件夹【{}】失败，请检查目录权限！",fileDir + demoPath);
} }
logger.info("上传文件：{}", fileDir + demoPath + fileName); logger.info("上传文件：{}", fileDir + demoPath + fileName);
try(InputStream in = file.getInputStream(); OutputStream out = new FileOutputStream(fileDir + demoPath + fileName)) { try(InputStream in = file.getInputStream(); OutputStream out = new FileOutputStream(fileDir + demoPath + fileName)) {
@ -72,8 +72,8 @@ public class FileController {
} }
File file = new File(fileDir + demoPath + fileName); File file = new File(fileDir + demoPath + fileName);
logger.info("删除文件：{}", file.getAbsolutePath()); logger.info("删除文件：{}", file.getAbsolutePath());
if (file.exists()) { if (file.exists() && !file.delete()) {
file.delete(); logger.error("删除文件【{}】失败，请检查目录权限！",file.getPath());
} }
return new ObjectMapper().writeValueAsString(new ReturnResponse<String>(0, "SUCCESS", null)); return new ObjectMapper().writeValueAsString(new ReturnResponse<String>(0, "SUCCESS", null));
} }
@ -84,7 +84,7 @@ public class FileController {
File file = new File(fileDir + demoPath); File file = new File(fileDir + demoPath);
if (file.exists()) { if (file.exists()) {
Arrays.stream(Objects.requireNonNull(file.listFiles())).forEach(file1 -> { Arrays.stream(Objects.requireNonNull(file.listFiles())).forEach(file1 -> {
Map<String, String> fileName = new HashMap(); Map<String, String> fileName = new HashMap<>();
fileName.put("fileName", demoDir + "/" + file1.getName()); fileName.put("fileName", demoDir + "/" + file1.getName());
list.add(fileName); list.add(fileName);
}); });

18
server/src/main/java/cn/keking/web/controller/OnlinePreviewController.java
View File

@ -7,10 +7,12 @@ import cn.keking.service.FilePreviewFactory;
import cn.keking.service.cache.CacheService; import cn.keking.service.cache.CacheService;
import cn.keking.utils.DownloadUtils; import cn.keking.utils.DownloadUtils;
import cn.keking.service.FileHandlerService; import cn.keking.service.FileHandlerService;
import com.thoughtworks.xstream.core.util.Base64JavaUtilCodec;
import org.slf4j.Logger; import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller; import org.springframework.stereotype.Controller;
import org.springframework.ui.Model; import org.springframework.ui.Model;
import org.springframework.util.Base64Utils;
import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.bind.annotation.ResponseBody;
@ -33,22 +35,20 @@ public class OnlinePreviewController {
private final FilePreviewFactory previewFactory; private final FilePreviewFactory previewFactory;
private final CacheService cacheService; private final CacheService cacheService;
private final FileHandlerService fileHandlerService; private final FileHandlerService fileHandlerService;
private final DownloadUtils downloadUtils;
public OnlinePreviewController(FilePreviewFactory filePreviewFactory, FileHandlerService fileHandlerService, CacheService cacheService, DownloadUtils downloadUtils) { public OnlinePreviewController(FilePreviewFactory filePreviewFactory, FileHandlerService fileHandlerService, CacheService cacheService) {
this.previewFactory = filePreviewFactory; this.previewFactory = filePreviewFactory;
this.fileHandlerService = fileHandlerService; this.fileHandlerService = fileHandlerService;
this.cacheService = cacheService; this.cacheService = cacheService;
this.downloadUtils = downloadUtils;
} }
@RequestMapping(value = "/onlinePreview") @RequestMapping(value = "/onlinePreview")
public String onlinePreview(String url, Model model, HttpServletRequest req) { public String onlinePreview(String url, Model model, HttpServletRequest req) {
FileAttribute fileAttribute = fileHandlerService.getFileAttribute(url,req); String fileUrl = new String(Base64Utils.decodeFromString(url));
FileAttribute fileAttribute = fileHandlerService.getFileAttribute(fileUrl,req);
FilePreview filePreview = previewFactory.get(fileAttribute); FilePreview filePreview = previewFactory.get(fileAttribute);
logger.info("预览文件url：{}，previewType：{}", url, fileAttribute.getType()); logger.info("预览文件url：{}，previewType：{}", fileUrl, fileAttribute.getType());
return filePreview.filePreviewHandle(url, model, fileAttribute); return filePreview.filePreviewHandle(fileUrl, model, fileAttribute);
} }
@RequestMapping(value = "/picturesPreview") @RequestMapping(value = "/picturesPreview")
@ -78,8 +78,8 @@ public class OnlinePreviewController {
public void getCorsFile(String urlPath, HttpServletResponse response) { public void getCorsFile(String urlPath, HttpServletResponse response) {
logger.info("下载跨域pdf文件url：{}", urlPath); logger.info("下载跨域pdf文件url：{}", urlPath);
try { try {
byte[] bytes = downloadUtils.getBytesFromUrl(urlPath); byte[] bytes = DownloadUtils.getBytesFromUrl(urlPath);
downloadUtils.saveBytesToOutStream(bytes, response.getOutputStream()); DownloadUtils.saveBytesToOutStream(bytes, response.getOutputStream());
} catch (IOException e) { } catch (IOException e) {
logger.error("下载跨域pdf文件异常，url：{}", urlPath, e); logger.error("下载跨域pdf文件异常，url：{}", urlPath, e);
} }

2
server/src/main/java/cn/keking/web/filter/BaseUrlFilter.java
View File

@ -38,7 +38,7 @@ public class BaseUrlFilter implements Filter {
pathBuilder.append(request.getScheme()).append("://").append(request.getServerName()).append(":") pathBuilder.append(request.getScheme()).append("://").append(request.getServerName()).append(":")
.append(request.getServerPort()).append(((HttpServletRequest) request).getContextPath()).append("/"); .append(request.getServerPort()).append(((HttpServletRequest) request).getContextPath()).append("/");
String baseUrlTmp = ConfigConstants.getBaseUrl(); String baseUrlTmp = ConfigConstants.getBaseUrl();
if (baseUrlTmp != null && !ConfigConstants.DEFAULT_BASE_URL.equals(baseUrlTmp.toLowerCase())) { if (baseUrlTmp != null && !ConfigConstants.DEFAULT_BASE_URL.equalsIgnoreCase(baseUrlTmp)) {
if (!baseUrlTmp.endsWith("/")) { if (!baseUrlTmp.endsWith("/")) {
baseUrlTmp = baseUrlTmp.concat("/"); baseUrlTmp = baseUrlTmp.concat("/");
} }

7
server/src/main/resources/web/compress.ftl
View File

@ -38,8 +38,11 @@
<script src="js/watermark.js" type="text/javascript"></script> <script src="js/watermark.js" type="text/javascript"></script>
<script type="text/javascript" src="js/jquery-3.0.0.min.js"></script> <script type="text/javascript" src="js/jquery-3.0.0.min.js"></script>
<script type="text/javascript" src="js/jquery.ztree.core.js"></script> <script type="text/javascript" src="js/jquery.ztree.core.js"></script>
<script type="text/javascript" src="js/base64.min.js" ></script>
<script type="text/javascript"> <script type="text/javascript">
var data = JSON.parse('${fileTree}'); var data = JSON.parse('${fileTree}');
var baseUrl = "${baseUrl}";
var setting = { var setting = {
view: { view: {
fontCss : {"color":"blue"}, fontCss : {"color":"blue"},
@ -71,8 +74,8 @@
} else { } else {
fulls += ",resizable"; // 对于不支持screen属性的浏览器，可以手工进行最大化。 manually fulls += ",resizable"; // 对于不支持screen属性的浏览器，可以手工进行最大化。 manually
} }
window.open("onlinePreview?url=" var previewUrl = baseUrl + treeNode.fileName +"&fileKey="+ treeNode.fileKey;
+ encodeURIComponent("${baseUrl}" + treeNode.fileName)+"&fileKey="+ encodeURIComponent(treeNode.fileKey), "_blank",fulls); window.open("onlinePreview?url=" + encodeURIComponent(Base64.encode(previewUrl)), "_blank",fulls);
} }
} }
} }

7
server/src/main/resources/web/index.ftl
View File

@ -15,6 +15,7 @@
<script type="text/javascript" src="bootstrap/js/bootstrap.min.js"></script> <script type="text/javascript" src="bootstrap/js/bootstrap.min.js"></script>
<script type="text/javascript" src="bootstrap-table/bootstrap-table.min.js"></script> <script type="text/javascript" src="bootstrap-table/bootstrap-table.min.js"></script>
<script type="text/javascript" src="gitalk/gitalk.min.js"></script> <script type="text/javascript" src="gitalk/gitalk.min.js"></script>
<script type="text/javascript" src="js/base64.min.js" ></script>
</head> </head>
<body> <body>
@ -36,14 +37,14 @@
成功实现： 成功实现：
<pre style="background-color: #2f332a;color: #cccccc"> <pre style="background-color: #2f332a;color: #cccccc">
var url = 'http://127.0.0.1:8080/file/test.txt'; //要预览文件的访问地址 var url = 'http://127.0.0.1:8080/file/test.txt'; //要预览文件的访问地址
window.open('http://127.0.0.1:8012/onlinePreview?url='+encodeURIComponent(url)); window.open('http://127.0.0.1:8012/onlinePreview?url='+encodeURIComponent(base64Encode(url)));
</pre> </pre>
</div> </div>
<div> <div>
新增多图片同时预览功能，接口如下： 新增多图片同时预览功能，接口如下：
<pre style="background-color: #2f332a;color: #cccccc"> <pre style="background-color: #2f332a;color: #cccccc">
var fileUrl =url1+"|"+"url2";//多文件使用“|”字符隔开 var fileUrl =url1+"|"+"url2";//多文件使用“|”字符隔开
window.open('http://127.0.0.1:8012/picturesPreview?urls='+encodeURIComponent(fileUrl)); window.open('http://127.0.0.1:8012/picturesPreview?urls='+encodeURIComponent(base64Encode(fileUrl)));
</pre> </pre>
</div> </div>
</div> </div>
@ -195,7 +196,7 @@ window.open('http://127.0.0.1:8012/picturesPreview?urls='+encodeURIComponent(fil
}).on('pre-body.bs.table', function (e,data) { }).on('pre-body.bs.table', function (e,data) {
// 每个data添加一列用来操作 // 每个data添加一列用来操作
$(data).each(function (index, item) { $(data).each(function (index, item) {
item.action = "<a class='btn btn-default' target='_blank' href='${baseUrl}onlinePreview?url="+ encodeURIComponent('${baseUrl}' + item.fileName) +"'>预览</a>" + item.action = "<a class='btn btn-default' target='_blank' href='${baseUrl}onlinePreview?url="+ encodeURIComponent(Base64.encode('${baseUrl}' + item.fileName)) +"'>预览</a>" +
"<a class='btn btn-default' href='javascript:void(0);' onclick='deleteFile(\""+item.fileName+"\")'>删除</a>"; "<a class='btn btn-default' href='javascript:void(0);' onclick='deleteFile(\""+item.fileName+"\")'>删除</a>";
}); });
return data; return data;