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8025128: File.createTempFile fails if prefix is absolute path

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Use only the file name from the supplied prefix for backward compatibility

Reviewed-by: alanb, chegar
This commit is contained in:
Dan Xu 2013-09-27 17:09:25 -07:00
parent 114ccbddf8
commit 512fbc2a59
2 changed files with 53 additions and 24 deletions
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12
jdk/src/share/classes/java/io/File.java
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@ -1908,10 +1908,18 @@ public class File
} else {
n = Math.abs(n);
}
// Use only the file name from the supplied prefix
prefix = (new File(prefix)).getName();
String name = prefix + Long.toString(n) + suffix;
File f = new File(dir, name);
if (!name.equals(f.getName()) || f.isInvalid())
throw new IOException("Unable to create temporary file");
if (!name.equals(f.getName()) || f.isInvalid()) {
if (System.getSecurityManager() != null)
throw new IOException("Unable to create temporary file");
else
throw new IOException("Unable to create temporary file, " + f);
}
return f;
}
}

65
jdk/test/java/io/File/createTempFile/SpecialTempFile.java
View File

@ -23,7 +23,7 @@
/*
* @test
* @bug 8013827 8011950 8017212
* @bug 8013827 8011950 8017212 8025128
* @summary Check whether File.createTempFile can handle special parameters
* @author Dan Xu
*/
@ -33,7 +33,9 @@ import java.io.IOException;
public class SpecialTempFile {
private static void test(String name, String[] prefix, String[] suffix) {
private static void test(String name, String[] prefix, String[] suffix,
boolean exceptionExpected) throws IOException
{
if (prefix == null || suffix == null
|| prefix.length != suffix.length)
{
@ -41,24 +43,38 @@ public class SpecialTempFile {
}
final String exceptionMsg = "Unable to create temporary file";
final String errMsg = "IOException is expected";
String[] dirs = { null, "." };
for (int i = 0; i < prefix.length; i++) {
boolean exceptionThrown = false;
File f = null;
System.out.println("In test " + name
+ ", creating temp file with prefix, "
+ prefix[i] + ", suffix, " + suffix[i]);
try {
f = File.createTempFile(prefix[i], suffix[i]);
} catch (IOException e) {
if (exceptionMsg.equals(e.getMessage()))
exceptionThrown = true;
else
System.out.println("Wrong error message:" + e.getMessage());
for (String dir: dirs) {
System.out.println("In test " + name +
", creating temp file with prefix, " +
prefix[i] + ", suffix, " + suffix[i] +
", in dir, " + dir);
try {
if (dir == null || dir.isEmpty())
f = File.createTempFile(prefix[i], suffix[i]);
else
f = File.createTempFile(prefix[i], suffix[i], new File(dir));
} catch (IOException e) {
if (exceptionExpected) {
if (e.getMessage().startsWith(exceptionMsg))
exceptionThrown = true;
else
System.out.println("Wrong error message:" +
e.getMessage());
} else {
throw e;
}
}
if (exceptionExpected && (!exceptionThrown || f != null))
throw new RuntimeException("IOException is expected");
}
if (!exceptionThrown || f != null)
throw new RuntimeException(errMsg);
}
}
@ -71,7 +87,17 @@ public class SpecialTempFile {
}
String[] nulPre = { name + "\u0000" };
String[] nulSuf = { ".test" };
test("NulName", nulPre, nulSuf);
test("NulName", nulPre, nulSuf, true);
// Test JDK-8025128
String[] goodPre = { "///..///", "/foo" };
String[] goodSuf = { ".temp", ".tmp" };
test("goodName", goodPre, goodSuf, false);
// Test JDK-8011950
String[] slashPre = { "temp", "///..///", "/foo" };
String[] slashSuf = { "///..///..", "///..///..", "///..///.." };
test("SlashedName", slashPre, slashSuf, true);
// Windows tests
if (!System.getProperty("os.name").startsWith("Windows"))
@ -80,11 +106,6 @@ public class SpecialTempFile {
// Test JDK-8013827
String[] resvPre = { "LPT1.package.zip", "com7.4.package.zip" };
String[] resvSuf = { ".temp", ".temp" };
test("ReservedName", resvPre, resvSuf);
// Test JDK-8011950
String[] slashPre = { "///..///", "temp", "///..///" };
String[] slashSuf = { ".temp", "///..///..", "///..///.." };
test("SlashedName", slashPre, slashSuf);
test("ReservedName", resvPre, resvSuf, true);
}
}