القائمة
Generate secure XML parsing code. Enforces secure parsing of XML content. Invoke when writing any XML parsing related code.
التثبيت باستخدام Codex أو Claude انسخ هذا Prompt والصقه في Codex أو Claude أو مساعد آخر ليراجع صفحة Skill ويثبّتها لك.
استنادا إلى تصنيف SOC المهني
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| name | secure-xml-parsing |
| description | Generate secure XML parsing code. Enforces secure parsing of XML content. Invoke when writing any XML parsing related code. |
| allowed-tools | Read Grep Glob |
| metadata | {"category":"security"} |
Apply all rules below when generating or reviewing any code related to xml content parsing.
// BAD: DTD and External Entities are resolved / Internal Entities are replaced / XInclude support is left to default / no size limit
import org.w3c.dom.Document;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import java.io.File;
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse(new File("data.xml"));
// GOOD: DTD and External Entities are not resolved / Internal Entities are not replaced / XInclude disabled / input size limited
import org.w3c.dom.Document;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import java.io.*;
import java.nio.file.*;
int MAX_XML_SIZE_BYTES = 1 * 1024 * 1024; // 1 MB
byte[] xmlBytes = Files.readAllBytes(Path.of("data.xml"));
if (xmlBytes.length > MAX_XML_SIZE_BYTES) {
throw new IOException("XML input exceeds maximum allowed size of 1 MB");
}
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
// Disable DTD resolution entirely
factory.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
// Disable XML External Entity (XXE) resolution
factory.setFeature("http://xml.org/sax/features/external-general-entities", false);
factory.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
factory.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
// Disable replacement of XML Internal Entities
factory.setExpandEntityReferences(false);
// Disable XInclude support
factory.setXIncludeAware(false);
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse(new ByteArrayInputStream(xmlBytes));
Before finalizing generated code, verify: