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package org.python.core;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLStreamHandler;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.python.util.PythonInterpreter;
import jnr.posix.util.Platform;
import junit.framework.TestCase;
public class PySystemStateTest extends TestCase {
/**
* A class to hold examples of URLs (just the path and class noise) and the reference answer.
* Provide the reference answer like a Un*x path (forward slash).
*/
private static class JarExample {
final String urlJarPath;
final String urlClassPath;
final String filePath;
/** This constructor adapts unixPath to Windows when on Windows. */
JarExample(String urlJarPath, String urlClassPath, String unixPath) {
this(urlJarPath, urlClassPath,
Platform.IS_WINDOWS ? new File(unixPath).toString() : unixPath, true);
}
/** This constructor accepts filePath exactly as given. */
JarExample(String urlJarPath, String urlClassPath, String filePath, boolean ignored) {
this.urlJarPath = urlJarPath;
this.urlClassPath = urlClassPath;
this.filePath = filePath;
}
}
/**
* Examples of URLs (just the path and class noise) and the reference answer. Provide the
* reference answer like a Un*x path (forward slash).
*/
private static List<JarExample> jarExamples = Arrays.asList(//
// simple jar-file url
new JarExample("/some_dir/some.jar", "a/package/with/A.class", "/some_dir/some.jar"),
// jar-file url to decode
new JarExample("/some%20dir/some.jar", "a/package/with/A.class", "/some dir/some.jar"),
// In an old implementation using URLDecoder "+" needed special treatment
new JarExample("/some+dir/some.jar", "a/package/with/A.class", "/some+dir/some.jar"),
// Some characters should be encoded in the URL, but emerge as themselves in the path.
new JarExample("/n%c3%a5gon/katalog/r%c3%a4tt.jar", "en/f%c3%b6rpackning/med/En.class",
"/någon/katalog/rätt.jar") //
);
/* Check drive-letter and UNC path handling if on Windows. */
static {
if (Platform.IS_WINDOWS) {
// Add some examples to the list (must be made mutable for that).
jarExamples = new ArrayList<JarExample>(jarExamples);
// Drive-letter examples
jarExamples.add(new JarExample("/C:/some_dir/some.jar", "a/package/with/A.class",
"C:\\some_dir\\some.jar", true));
jarExamples.add(new JarExample("/E:/n%c3%a5gon/katalog/r%c3%a4tt.jar", "med/En.class",
"E:\\någon\\katalog\\rätt.jar", true));
// Simple network file path (UNC path without controversial characters)
String p = "/org/python/version.properies";
String r = "\\\\localhost\\shared\\jython-dev.jar";
// JAR UNC file resource URL as produced by File.getURL or getURI
jarExamples.add(new JarExample("////localhost/shared/jython-dev.jar", p, r, true));
// JAR UNC file resource URL as produced by URLClassLoader.getResource
jarExamples.add(new JarExample("//localhost/shared/jython-dev.jar", p, r, true));
// Network file path (UNC path with a controversial characters)
r = "\\\\localhost\\shared\\jy thon%dev.jar";
// JAR UNC file resource URL based on (deprecated) File.getURL is invalid
// jarExamples.add(new JarExample("//localhost/shared/jy thon%dev.jar", p, r, true));
// JAR UNC file resource URL based on File.getURI
jarExamples.add(new JarExample("////localhost/shared/jy%20thon%25dev.jar", p, r, true));
// JAR UNC file resource URL as produced by URLClassLoader.getResource
jarExamples.add(new JarExample("//localhost/shared/jy%20thon%25dev.jar", p, r, true));
}
}
/**
* Test case for finding the path in the local file system of the file located by a JAR-file
* URL. A URL is a sequence of characters (from a limited set) that encodes a sequence of octets
* that may (if the protocol intends it) represent characters in some encoding. In the case of a
* JAR-file URL, these octets encode the file path elements in UTF-8.
*/
public void testGetJarFileNameFromURL() throws Exception {
// null
assertNull(Py.getJarFileNameFromURL(null));
// Examples from the table
for (JarExample ex : jarExamples) {
// Something like jar:file:/some_dir/some.jar!/a/package/with/A.class
URL url = new URL("jar:file:" + ex.urlJarPath + "!/" + ex.urlClassPath);
assertEquals(ex.filePath, Py.getJarFileNameFromURL(url));
}
}
/**
* Test case for finding the path in the local file system of the file located by a JBoss vfszip
* URL. This is problematic as an objective because a path in the VFS does not necessarily have
* a counterpart in the local file system. However, the implementation and test are based on
* behaviour observed when this is the case.
*/
public void testGetJarFileNameFromURL_jboss() throws Exception {
final String protocol = "vfszip";
final String host = "";
final int port = -1;
final URLStreamHandler handler = new TestJBossURLStreamHandler();
// Test with any class file in org.python.core
final String classPart = "/org/python/core/PySystemState.class";
String file;
URL url;
if (Platform.IS_WINDOWS) {
// plain jboss url
file = "/C:/some_dir/some.jar" + classPart;
url = new URL(protocol, host, port, file, handler);
// tests with jboss on windows gave URL's like this:
assertEquals("vfszip:/C:/some_dir/some.jar" + classPart, url.toString());
String result = Py.getJarFileNameFromURL(url);
assertEquals("C:\\some_dir\\some.jar", result);
// jboss url to decode
file = "/C:/some%20dir/some.jar" + classPart;
url = new URL(protocol, host, port, file, handler);
assertEquals("vfszip:/C:/some%20dir/some.jar" + classPart, url.toString());
result = Py.getJarFileNameFromURL(url);
assertEquals("C:\\some dir\\some.jar", result);
// jboss url with + to escape
file = "/C:/some+dir/some.jar" + classPart;
url = new URL(protocol, host, port, file, handler);
assertEquals("vfszip:/C:/some+dir/some.jar" + classPart, url.toString());
result = Py.getJarFileNameFromURL(url);
assertEquals("C:\\some+dir\\some.jar", result);
// jboss url with challenging JAR name (assume will be provided RFC-2396 encoded)
file = "/C:/n%c3%a5gon/katalog/r%c3%a4tt.jar" + classPart;
url = new URL(protocol, host, port, file, handler);
assertEquals("vfszip:/C:/n%c3%a5gon/katalog/r%c3%a4tt.jar" + classPart, url.toString());
result = Py.getJarFileNameFromURL(url);
assertEquals("C:\\någon\\katalog\\rätt.jar", result);
} else {
// plain jboss url
file = "/some_dir/some.jar" + classPart;
url = new URL(protocol, host, port, file, handler);
assertEquals("vfszip:/some_dir/some.jar" + classPart, url.toString());
String result = Py.getJarFileNameFromURL(url);
assertEquals("/some_dir/some.jar", result);
// jboss url to decode
file = "/some%20dir/some.jar" + classPart;
url = new URL(protocol, host, port, file, handler);
assertEquals("vfszip:/some%20dir/some.jar" + classPart, url.toString());
result = Py.getJarFileNameFromURL(url);
assertEquals("/some dir/some.jar", result);
// jboss url with + to escape
file = "/some+dir/some.jar" + classPart;
url = new URL(protocol, host, port, file, handler);
assertEquals("vfszip:/some+dir/some.jar" + classPart, url.toString());
result = Py.getJarFileNameFromURL(url);
assertEquals("/some+dir/some.jar", result);
// jboss url with challenging JAR name (assume will be provided RFC-2396 encoded)
file = "/n%c3%a5gon/katalog/r%c3%a4tt.jar" + classPart;
url = new URL(protocol, host, port, file, handler);
assertEquals("vfszip:/n%c3%a5gon/katalog/r%c3%a4tt.jar" + classPart, url.toString());
result = Py.getJarFileNameFromURL(url);
assertEquals("/någon/katalog/rätt.jar", result);
}
}
/**
* Test case for finding the path in the local file system of the file located by a JAR-file URL
* as reported by a JavaWebStart application. As the path points to a HTTP resource, there is no
* way to find the jar in the local file system: in this case, the method must return null.
*/
public void testGetJarFileNameFromURL_javaWebStart() throws MalformedURLException {
// Examples from the table
for (JarExample ex : jarExamples) {
// Something like jar:file:/some_dir/some.jar!/a/package/with/A.class
URL url = new URL("jar:http://server:8080/signedWebApp/" + ex.urlJarPath + "!/"
+ ex.urlClassPath);
assertNull(PrePy.getJarFileNameFromURL(url));
}
}
public void testImport() throws Exception {
Options.importSite = false;
try {
PySystemState pySystemState = new PySystemState();
PySystemState.initialize();
PythonInterpreter interpreter = new PythonInterpreter(null, pySystemState);
interpreter.exec("import os");
assertTrue(interpreter.getSystemState().modules.__contains__(new PyString("os")));
} finally {
Options.importSite = true;
}
}
/**
* A URL handler that emulates the behaviour (as far as we're concerned) of
* {@code org.jboss.virtual.protocol.vfs.Handler}, that we can use to make URLs that behave the
* same way as JBoss ones.
*
*/
protected static class TestJBossURLStreamHandler extends URLStreamHandler {
@Override
protected URLConnection openConnection(URL u) throws IOException {
throw new RuntimeException("unexpected call to openConnection " + u.toString());
}
}
}
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