package com.walker.support.kaptcha;
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import com.google.code.kaptcha.impl.DefaultKaptcha;
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import com.google.code.kaptcha.util.Config;
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import com.walker.web.CaptchaProvider;
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import com.walker.web.CaptchaResult;
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import com.walker.web.CaptchaType;
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import java.awt.image.BufferedImage;
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import java.util.Properties;
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import static com.google.code.kaptcha.Constants.KAPTCHA_BORDER;
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import static com.google.code.kaptcha.Constants.KAPTCHA_BORDER_COLOR;
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import static com.google.code.kaptcha.Constants.KAPTCHA_IMAGE_HEIGHT;
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import static com.google.code.kaptcha.Constants.KAPTCHA_IMAGE_WIDTH;
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import static com.google.code.kaptcha.Constants.KAPTCHA_NOISE_COLOR;
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import static com.google.code.kaptcha.Constants.KAPTCHA_NOISE_IMPL;
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import static com.google.code.kaptcha.Constants.KAPTCHA_OBSCURIFICATOR_IMPL;
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import static com.google.code.kaptcha.Constants.KAPTCHA_SESSION_CONFIG_KEY;
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import static com.google.code.kaptcha.Constants.KAPTCHA_TEXTPRODUCER_CHAR_LENGTH;
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import static com.google.code.kaptcha.Constants.KAPTCHA_TEXTPRODUCER_CHAR_SPACE;
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import static com.google.code.kaptcha.Constants.KAPTCHA_TEXTPRODUCER_FONT_COLOR;
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import static com.google.code.kaptcha.Constants.KAPTCHA_TEXTPRODUCER_FONT_NAMES;
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import static com.google.code.kaptcha.Constants.KAPTCHA_TEXTPRODUCER_FONT_SIZE;
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import static com.google.code.kaptcha.Constants.KAPTCHA_TEXTPRODUCER_IMPL;
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public class SimpleKaptchaProvider implements CaptchaProvider<CaptchaResult> {
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private DefaultKaptcha textKaptcha = null;
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private DefaultKaptcha mathKaptcha = null;
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private static final String CAPTCHA_TYPE_CHAR = "char";
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private static final String CAPTCHA_TYPE_MATH = "math";
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public SimpleKaptchaProvider(){
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this.textKaptcha = this.createTextKaptcha();
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this.mathKaptcha = this.createMathKaptcha();
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}
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/**
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* 可输入参数切换不同验证码方式。
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* @param param math or char, 如果不输入默认为char
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* @return
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*/
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@Override
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public CaptchaResult generateCaptcha(Object param) {
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CaptchaResult captchaResult = null;
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String capStr = null, code = null;
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BufferedImage image = null;
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if(param != null){
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if(param.toString().equals(CAPTCHA_TYPE_MATH)){
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String capText = this.mathKaptcha.createText();
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capStr = capText.substring(0, capText.lastIndexOf("@"));
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code = capText.substring(capText.lastIndexOf("@") + 1);
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image = this.mathKaptcha.createImage(capStr);
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captchaResult = new CaptchaResult();
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captchaResult.setCode(code);
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captchaResult.setImage(image);
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return captchaResult;
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}
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}
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capStr = code = this.textKaptcha.createText();
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image = this.textKaptcha.createImage(capStr);
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captchaResult = new CaptchaResult();
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captchaResult.setCode(code);
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captchaResult.setImage(image);
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return captchaResult;
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}
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@Override
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public boolean validateCaptcha(CaptchaResult data) {
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return false;
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}
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@Override
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public CaptchaType getCaptchaType() {
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return CaptchaType.InputCode;
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}
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private DefaultKaptcha createTextKaptcha(){
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DefaultKaptcha defaultKaptcha = new DefaultKaptcha();
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Properties properties = new Properties();
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// 是否有边框 默认为true 我们可以自己设置yes，no
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properties.setProperty(KAPTCHA_BORDER, "yes");
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// 验证码文本字符颜色 默认为Color.BLACK
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properties.setProperty(KAPTCHA_TEXTPRODUCER_FONT_COLOR, "black");
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// 验证码图片宽度 默认为200
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properties.setProperty(KAPTCHA_IMAGE_WIDTH, "160");
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// 验证码图片高度 默认为50
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properties.setProperty(KAPTCHA_IMAGE_HEIGHT, "60");
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// 验证码文本字符大小 默认为40
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properties.setProperty(KAPTCHA_TEXTPRODUCER_FONT_SIZE, "38");
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// KAPTCHA_SESSION_KEY
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properties.setProperty(KAPTCHA_SESSION_CONFIG_KEY, "kaptchaCode");
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// 验证码文本字符长度 默认为5
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properties.setProperty(KAPTCHA_TEXTPRODUCER_CHAR_LENGTH, "4");
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// 验证码文本字体样式 默认为new Font("Arial", 1, fontSize), new Font("Courier", 1, fontSize)
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properties.setProperty(KAPTCHA_TEXTPRODUCER_FONT_NAMES, "Arial,Courier");
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// 图片样式 水纹com.google.code.kaptcha.impl.WaterRipple 鱼眼com.google.code.kaptcha.impl.FishEyeGimpy 阴影com.google.code.kaptcha.impl.ShadowGimpy
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properties.setProperty(KAPTCHA_OBSCURIFICATOR_IMPL, "com.google.code.kaptcha.impl.ShadowGimpy");
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Config config = new Config(properties);
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defaultKaptcha.setConfig(config);
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return defaultKaptcha;
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}
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private DefaultKaptcha createMathKaptcha(){
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DefaultKaptcha defaultKaptcha = new DefaultKaptcha();
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Properties properties = new Properties();
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// 是否有边框 默认为true 我们可以自己设置yes，no
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properties.setProperty(KAPTCHA_BORDER, "yes");
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// 边框颜色 默认为Color.BLACK
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properties.setProperty(KAPTCHA_BORDER_COLOR, "105,179,90");
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// 验证码文本字符颜色 默认为Color.BLACK
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properties.setProperty(KAPTCHA_TEXTPRODUCER_FONT_COLOR, "blue");
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// 验证码图片宽度 默认为200
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properties.setProperty(KAPTCHA_IMAGE_WIDTH, "160");
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// 验证码图片高度 默认为50
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properties.setProperty(KAPTCHA_IMAGE_HEIGHT, "60");
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// 验证码文本字符大小 默认为40
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properties.setProperty(KAPTCHA_TEXTPRODUCER_FONT_SIZE, "35");
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// KAPTCHA_SESSION_KEY
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properties.setProperty(KAPTCHA_SESSION_CONFIG_KEY, "kaptchaCodeMath");
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// 验证码文本生成器
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properties.setProperty(KAPTCHA_TEXTPRODUCER_IMPL, "com.walker.support.kaptcha.KaptchaTextCreator");
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// 验证码文本字符间距 默认为2
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properties.setProperty(KAPTCHA_TEXTPRODUCER_CHAR_SPACE, "3");
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// 验证码文本字符长度 默认为5
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properties.setProperty(KAPTCHA_TEXTPRODUCER_CHAR_LENGTH, "6");
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// 验证码文本字体样式 默认为new Font("Arial", 1, fontSize), new Font("Courier", 1, fontSize)
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properties.setProperty(KAPTCHA_TEXTPRODUCER_FONT_NAMES, "Arial,Courier");
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// 验证码噪点颜色 默认为Color.BLACK
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properties.setProperty(KAPTCHA_NOISE_COLOR, "white");
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// 干扰实现类
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properties.setProperty(KAPTCHA_NOISE_IMPL, "com.google.code.kaptcha.impl.NoNoise");
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// 图片样式 水纹com.google.code.kaptcha.impl.WaterRipple 鱼眼com.google.code.kaptcha.impl.FishEyeGimpy 阴影com.google.code.kaptcha.impl.ShadowGimpy
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properties.setProperty(KAPTCHA_OBSCURIFICATOR_IMPL, "com.google.code.kaptcha.impl.ShadowGimpy");
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Config config = new Config(properties);
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defaultKaptcha.setConfig(config);
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return defaultKaptcha;
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}
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}
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