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Bug 60370: Encode some special characters when setting title/text for validation text-boxes, for now all characters below 32, more can be added if necessary. 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1771396 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Dominik Stadler 2016-11-25 22:07:59 +00:00
parent d58dd553dc
commit 3bda549d79
2 changed files with 75 additions and 7 deletions
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35
src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFDataValidation.java
View File

@ -110,8 +110,8 @@ public class XSSFDataValidation implements DataValidation {
if(text != null && text.length() > 255) {
throw new IllegalStateException("Error-text cannot be longer than 255 characters, but had: " + text);
}
ctDdataValidation.setErrorTitle(title);
ctDdataValidation.setError(text);
ctDdataValidation.setErrorTitle(encodeUtf(title));
ctDdataValidation.setError(encodeUtf(text));
}
/* (non-Javadoc)
@ -125,8 +125,35 @@ public class XSSFDataValidation implements DataValidation {
if(text != null && text.length() > 255) {
throw new IllegalStateException("Error-text cannot be longer than 255 characters, but had: " + text);
}
ctDdataValidation.setPromptTitle(title);
ctDdataValidation.setPrompt(text);
ctDdataValidation.setPromptTitle(encodeUtf(title));
ctDdataValidation.setPrompt(encodeUtf(text));
}
/**
* For all characters which cannot be represented in XML as defined by the XML 1.0 specification,
* the characters are escaped using the Unicode numerical character representation escape character
* format _xHHHH_, where H represents a hexadecimal character in the character's value.
* <p>
* Example: The Unicode character 0D is invalid in an XML 1.0 document,
* so it shall be escaped as <code>_x000D_</code>.
* </p>
* See section 3.18.9 in the OOXML spec.
*
* @param text the string to encode
* @return the encoded string
*/
private String encodeUtf(String text) {
StringBuilder builder = new StringBuilder();
for(char c : text.toCharArray()) {
// for now only encode characters below 32, we can add more here if needed
if(c < 32) {
builder.append("_x").append(c < 16 ? "000" : "00").append(Integer.toHexString(c)).append("_");
} else {
builder.append(c);
}
}
return builder.toString();
}
/* (non-Javadoc)

47
src/testcases/org/apache/poi/ss/usermodel/BaseTestBugzillaIssues.java
View File

@ -53,6 +53,8 @@ public abstract class BaseTestBugzillaIssues {
private static final String TEST_32 = "Some text with 32 characters to ";
private static final String TEST_255 = "Some very long text that is exactly 255 characters, which are allowed here, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla.....";
private static final String TEST_256 = "Some very long text that is longer than the 255 characters allowed in HSSF here, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla bla, bla1";
private static final String TEST_SPECIAL_TITLE = "special \n\t\r\u0002characters";
private static final String TEST_SPECIAL = "Some text with special \n\t\r\u0002characters to s";
private final ITestDataProvider _testDataProvider;
@ -167,7 +169,7 @@ public abstract class BaseTestBugzillaIssues {
// fetch the first merged region...EXCEPTION OCCURS HERE
template.getMergedRegion(0);
}
//make sure we dont exception
wb.close();
}
@ -989,7 +991,7 @@ public abstract class BaseTestBugzillaIssues {
* With HSSF, if you create a font, don't change it, and
* create a 2nd, you really do get two fonts that you
* can alter as and when you want.
* With XSSF, that wasn't the case, but this verfies
* With XSSF, that wasn't the case, but this verifies
* that it now is again
*/
@Test
@ -1802,9 +1804,14 @@ public abstract class BaseTestBugzillaIssues {
// more than 255 fail for all
checkFailures(dataValidation, TEST_256, TEST_32, true);
checkFailures(dataValidation, TEST_32, TEST_256, true);
// more than 32 title fail for HSSFWorkbook
checkFailures(dataValidation, TEST_255, TEST_32, wb instanceof HSSFWorkbook);
// 32 length title and 255 length text wrok for both
// special characters work
checkFailures(dataValidation, TEST_SPECIAL_TITLE, TEST_SPECIAL, false);
// 32 length title and 255 length text work for both
checkFailures(dataValidation, TEST_32, TEST_255, false);
dataValidation.setShowErrorBox(false);
@ -1843,4 +1850,38 @@ public abstract class BaseTestBugzillaIssues {
assertTrue("Should not fail in a length-check, had " + title.length() + " and " + text.length(), shouldFail);
}
}
@Test
public void test60370() throws IOException {
Workbook wb = _testDataProvider.createWorkbook();
final Sheet sheet = wb.createSheet();
DataValidation dataValidation;
CellRangeAddressList headerCell = new CellRangeAddressList(0, 1, 0, 1);
DataValidationConstraint constraint = sheet.getDataValidationHelper().createCustomConstraint("A1<>\"\"");
dataValidation = sheet.getDataValidationHelper().createValidation(constraint, headerCell);
checkFailures(dataValidation, TEST_SPECIAL_TITLE, TEST_SPECIAL, false);
dataValidation.setShowErrorBox(true);
dataValidation.setShowPromptBox(true);
sheet.addValidationData(dataValidation);
// write out and read back in to trigger some more validation
final Workbook wbBack = _testDataProvider.writeOutAndReadBack(wb);
final Sheet sheetBack = wbBack.getSheetAt(0);
final List<? extends DataValidation> dataValidations = sheetBack.getDataValidations();
assertEquals(1, dataValidations.size());
/*String ext = (wb instanceof HSSFWorkbook) ? ".xls" : ".xlsx";
OutputStream str = new FileOutputStream("/tmp/60370" + ext);
try {
wb.write(str);
} finally {
str.close();
}*/
wb.close();
}
}