itext2.1.7有漏洞替代方案

最新推荐文章于 2022-11-28 15:15:06 发布

原创最新推荐文章于 2022-11-28 15:15:06 发布 · 1.9k 阅读

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该博客主要讨论如何使用Flying Saucer和iText库将HTML内容转换为PDF，并解决中文显示问题。通过添加特定字体文件，确保PDF能够正确渲染中文字符。同时，提供了两个方法`createPdf1()`和`createPdf2()`来展示转换过程。

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1. flying-saucer-pdf自动引入了itext2.1.7 有漏洞
<dependency>
    <groupId>org.xhtmlrenderer</groupId>
    <artifactId>flying-saucer-pdf</artifactId>
    <version>9.1.6</version>
</dependency>

2. flying-saucer-pdf-itext5引入了itext5.1.12

<dependency>
    <groupId>org.xhtmlrenderer</groupId>
    <artifactId>flying-saucer-pdf-itext5</artifactId>
    <version>9.1.22</version>
</dependency>

POM.XML

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.demo</groupId>
    <artifactId>freemarker-page-demo</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version> 2.2.2.RELEASE</version>
    </parent>

    <dependencies>
        <!--web组件-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--lombok简化实体类的get set方法-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <!-- freemarker-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-freemarker</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
        </dependency>

        <!-- itextpdf,导出pdf核心架包 -->
<!--        <dependency>-->
<!--            <groupId>com.itextpdf</groupId>-->
<!--            <artifactId>itextpdf</artifactId>-->
<!--            <version>5.5.12</version>-->
<!--        </dependency>-->
        <!-- itextpdf工具包，用来解析html生成pdf -->
        <dependency>
            <groupId>com.itextpdf.tool</groupId>
            <artifactId>xmlworker</artifactId>
            <version>5.5.11</version>
        </dependency>
        <!-- flying saucer,支持对CSS高级特性的解析 -->
<!--        <dependency>-->
<!--            <groupId>org.xhtmlrenderer</groupId>-->
<!--            <artifactId>flying-saucer-pdf</artifactId>-->
<!--            <version>9.1.6</version>-->
<!--        </dependency>-->
        <!-- https://mvnrepository.com/artifact/org.xhtmlrenderer/flying-saucer-pdf-itext5 -->
        <dependency>
            <groupId>org.xhtmlrenderer</groupId>
            <artifactId>flying-saucer-pdf-itext5</artifactId>
            <version>9.1.22</version>
        </dependency>

        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.4</version>
        </dependency>
        <!-- 支持css样式渲染 -->
<!--        <dependency>-->
<!--            <groupId>org.xhtmlrenderer</groupId>-->
<!--            <artifactId>flying-saucer-pdf-itext5</artifactId>-->
<!--            <version>9.0.3</version>-->
<!--        </dependency>-->

        <!-- 支持中文 -->
        <dependency>
            <groupId>com.itextpdf</groupId>
            <artifactId>itext-asian</artifactId>
            <version>5.2.0</version>
        </dependency>
        <!--<dependency>
            <groupId>commons.codec</groupId>
            <artifactId>commons-codec</artifactId>
            <version>1.16</version>
        </dependency>-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>commons-codec</groupId>
            <artifactId>commons-codec</artifactId>
            <version>1.4</version>
        </dependency>
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter</artifactId>
        </dependency>
    </dependencies>

    <build>
        <finalName>itextpdf</finalName>
    </build>

</project>

CreatePdf1()

 /**
     * html转pdf。html  最大尺寸790,1120
     * @param html
     * @throws Exception
     */
    public static byte[] htmlToPdf(String html) throws Exception{
        ByteArrayOutputStream os = null;
        try {
            os = new ByteArrayOutputStream();

            ITextRenderer renderer = new ITextRenderer();
            renderer.setDocumentFromString(html);
            // 解决中文问题
            //Arial Unicode MS   SimSun Microsoft YaHei
            String freemarkerFontPath = "/home/weblogic/data/web/sfs/freemarker";
            if (StringUtils.isBlank(freemarkerFontPath)) {
                logger.error("freemarkerFontPath is blank!");
                return null;
            }
            String msyhPath = "D:\\gitee\\font\\MSYH.TTF";
            File msyhFile = new File(msyhPath);
            if (!msyhFile.exists() || !FileUtil.isReadable(msyhFile)) {
                logger.error("MSYH.TTF does not exist or permission denied !");
                return null;
            }
            String msyhbdPath = "D:\\gitee\\font\\MSYHBD.TTF";
            File msyhbdFile = new File(msyhbdPath);
            if (!msyhbdFile.exists() || !FileUtil.isReadable(msyhbdFile)) {
                logger.error("MSYHBD.TTF does not exist or permission denied !");
                return null;
            }
            ITextFontResolver fontResolver = renderer.getFontResolver();
            fontResolver.addFont(msyhPath, BaseFont.IDENTITY_H,
                    BaseFont.NOT_EMBEDDED);
            fontResolver.addFont(msyhbdPath, BaseFont.IDENTITY_H,
                    BaseFont.NOT_EMBEDDED);
            //renderer.getSharedContext().setBaseURL("http://192.168.0.138:8081/saferycom/images/");
            renderer.layout();
            renderer.createPDF(os);
            logger.info("转换成功！");

            return os.toByteArray();
        } catch(Exception e) {
            logger.error("", e);
        } finally {
            if (os != null) {
                try {
                    os.close();
                } catch (IOException e) {
                    logger.error("", e);
                }
            }
        }

        return null;
    }

createPdf2()

public static void createPdf(String content,String dest) throws IOException, DocumentException {
        ITextRenderer render = new ITextRenderer();

        //设置字体
        ITextFontResolver fontResolver = render.getFontResolver();
//        fontResolver.addFont(FONT_S, BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
//        fontResolver.addFont(FONT, BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
//        fontResolver.addFont(FONT_C, BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
        fontResolver.addFont(FONT_S, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
        fontResolver.addFont(FONT, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
        fontResolver.addFont(FONT_C, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);

        // 解析html生成pdf
        render.setDocumentFromString(content);
        render.layout();
        render.createPDF(new FileOutputStream(dest));
        render.finishPDF();
    }