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Don't crash if resrouce references being parsed have unexpected child 

elements
This commit is contained in:
James Agnew 2015-08-06 10:50:36 -04:00
parent 137a2cf7ec
commit af9c8faf89
3 changed files with 119 additions and 92 deletions
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30
hapi-fhir-base/src/main/java/ca/uhn/fhir/parser/ParserState.java
View File

@ -227,7 +227,7 @@ class ParserState<T> {
/**
* @param theResourceType
* May be null
* May be null
*/
static <T extends IBaseResource> ParserState<T> getPreResourceInstance(Class<T> theResourceType, FhirContext theContext, boolean theJsonMode, IParserErrorHandler theErrorHandler)
throws DataFormatException {
@ -796,6 +796,10 @@ class ParserState<T> {
myPreResourceState = thePreResourceState;
}
/**
* @param theValue
* The attribute value
*/
public void attributeValue(String theName, String theValue) throws DataFormatException {
myErrorHandler.unknownAttribute(null, theName);
}
@ -804,6 +808,15 @@ class ParserState<T> {
// ignore by default
}
protected void logAndSwallowUnexpectedElement(String theLocalPart) {
myErrorHandler.unknownElement(null, theLocalPart);
push(new SwallowChildrenWholeState(getPreResourceState()));
}
/**
* @param theNamespaceUri
* The XML namespace (if XML) or null
*/
public void enteringNewElement(String theNamespaceUri, String theLocalPart) throws DataFormatException {
myErrorHandler.unknownElement(null, theLocalPart);
}
@ -860,7 +873,7 @@ class ParserState<T> {
/**
* @param theData
* The string value
* The string value
*/
public void string(String theData) {
// ignore by default
@ -872,7 +885,7 @@ class ParserState<T> {
/**
* @param theNextEvent
* The XML event
* The XML event
*/
public void xmlEvent(XMLEvent theNextEvent) {
// ignore
@ -1143,13 +1156,13 @@ class ParserState<T> {
} else if ("url".equals(theLocalPart)) {
push(new PrimitiveState(getPreResourceState(), myEntry.getLinkSearch()));
} else {
ourLog.warn("Unexpected element in Bundle.entry.search: " + theLocalPart);
push(new SwallowChildrenWholeState(getPreResourceState()));
logAndSwallowUnexpectedElement(theLocalPart);
}
}
}
private class BundleLinkState extends BaseState {
private BundleEntry myEntry;
@ -2328,11 +2341,14 @@ class ParserState<T> {
} else if ("resource".equals(theLocalPart)) {
mySubState = ResourceReferenceSubState.REFERENCE;
break;
} else {
logAndSwallowUnexpectedElement(theLocalPart);
break;
}
//$FALL-THROUGH$
case DISPLAY:
case REFERENCE:
throw new DataFormatException("Unexpected element: " + theLocalPart);
logAndSwallowUnexpectedElement(theLocalPart);
break;
}
}

163
hapi-fhir-structures-dstu/src/test/java/ca/uhn/fhir/parser/XmlParserTest.java
View File

@ -108,39 +108,14 @@ public class XmlParserTest {
String str = ourCtx.newXmlParser().encodeResourceToString(patient);
ourLog.info(str);
assertThat(
str,
Matchers.stringContainsInOrder("<Patient xmlns=\"http://hl7.org/fhir\"><extension url=\"http://foo/someOrg\"><valueResource><reference value=\"#1\"/></valueResource></extension><contained><Organization xmlns=\"http://hl7.org/fhir\" id=\"1\"><name value=\"OrgName\"/></Organization></contained><name><family value=\"PatientName\"/></name></Patient>"));
assertThat(str, Matchers.stringContainsInOrder(
"<Patient xmlns=\"http://hl7.org/fhir\"><extension url=\"http://foo/someOrg\"><valueResource><reference value=\"#1\"/></valueResource></extension><contained><Organization xmlns=\"http://hl7.org/fhir\" id=\"1\"><name value=\"OrgName\"/></Organization></contained><name><family value=\"PatientName\"/></name></Patient>"));
MyPatient parse = ourCtx.newXmlParser().parseResource(MyPatient.class, str);
assertEquals("PatientName", parse.getNameFirstRep().getFamilyAsSingleString());
assertEquals("OrgName", ((MyOrganization) parse.getSomeOrganization().getResource()).getName().getValue());
}
@Test
public void testParseAndEncodeHugeValue() {
int len = 1000000;
byte[] bytes = new byte[len];
for (int i = 0; i < len; i++) {
bytes[i] = (byte) (Math.random() * Byte.MAX_VALUE);
}
AttachmentDt att = new AttachmentDt();
att.setData(bytes);
Observation obs = new Observation();
obs.setValue(att);
String str = ourCtx.newXmlParser().encodeResourceToString(obs);
assertThat(str.length(), Matchers.greaterThan(len));
obs = ourCtx.newXmlParser().parseResource(Observation.class, str);
att = (AttachmentDt) obs.getValue();
assertArrayEquals(bytes, att.getData().getValue());
}
/**
* Test for #82 - Not yet enabled because the test won't pass
*/
@ -157,9 +132,8 @@ public class XmlParserTest {
String str = ourCtx.newXmlParser().encodeResourceToString(patient);
ourLog.info(str);
assertThat(
str,
Matchers.stringContainsInOrder("<Patient xmlns=\"http://hl7.org/fhir\"><contained><Organization xmlns=\"http://hl7.org/fhir\" id=\"1\"><name value=\"OrgName\"/></Organization></contained><name><family value=\"PatientName\"/></name><managingOrganization><reference value=\"#1\"/></managingOrganization></Patient>"));
assertThat(str, Matchers.stringContainsInOrder(
"<Patient xmlns=\"http://hl7.org/fhir\"><contained><Organization xmlns=\"http://hl7.org/fhir\" id=\"1\"><name value=\"OrgName\"/></Organization></contained><name><family value=\"PatientName\"/></name><managingOrganization><reference value=\"#1\"/></managingOrganization></Patient>"));
MyPatient parse = ourCtx.newXmlParser().parseResource(MyPatient.class, str);
assertEquals("PatientName", parse.getNameFirstRep().getFamilyAsSingleString());
@ -251,13 +225,11 @@ public class XmlParserTest {
String enc = ourCtx.newXmlParser().encodeResourceToString(patient);
assertThat(enc, containsString("<Patient xmlns=\"http://hl7.org/fhir\"><extension url=\"http://example.com/extensions#someext\"><valueDateTime value=\"2011-01-02T11:13:15\"/></extension>"));
assertThat(enc, containsString("<modifierExtension url=\"http://example.com/extensions#modext\"><valueDate value=\"1995-01-02\"/></modifierExtension>"));
assertThat(
enc,
containsString("<extension url=\"http://example.com#parent\"><extension url=\"http://example.com#child\"><valueString value=\"value1\"/></extension><extension url=\"http://example.com#child\"><valueString value=\"value2\"/></extension></extension>"));
assertThat(enc, containsString(
"<extension url=\"http://example.com#parent\"><extension url=\"http://example.com#child\"><valueString value=\"value1\"/></extension><extension url=\"http://example.com#child\"><valueString value=\"value2\"/></extension></extension>"));
assertThat(enc, containsString("<given value=\"Joe\"><extension url=\"http://examples.com#givenext\"><valueString value=\"given\"/></extension></given>"));
assertThat(
enc,
containsString("<given value=\"Shmoe\"><extension url=\"http://examples.com#givenext_parent\"><extension url=\"http://examples.com#givenext_child\"><valueString value=\"CHILD\"/></extension></extension></given>"));
assertThat(enc, containsString(
"<given value=\"Shmoe\"><extension url=\"http://examples.com#givenext_parent\"><extension url=\"http://examples.com#givenext_child\"><valueString value=\"CHILD\"/></extension></extension></given>"));
/*
* Now parse this back
@ -500,28 +472,6 @@ public class XmlParserTest {
}
@Test
public void testEncodeContainedWithSelfReference() {
IParser xmlParser = ourCtx.newXmlParser().setPrettyPrint(true);
// Create an organization, note that the organization does not have an ID
Organization org = new Organization();
org.getName().setValue("Contained Test Organization");
org.setPartOf(new ResourceReferenceDt(org));
// Create a patient
Patient patient = new Patient();
patient.getManagingOrganization().setResource(org);
String encoded = xmlParser.encodeResourceToString(patient);
ourLog.info(encoded);
assertThat(encoded, containsString("<contained>"));
assertThat(encoded, containsString("<reference value=\"#1\"/>"));
}
@Test
public void testEncodeContained() {
IParser xmlParser = ourCtx.newXmlParser().setPrettyPrint(true);
@ -673,6 +623,25 @@ public class XmlParserTest {
}
@Test
public void testEncodeContainedWithSelfReference() {
IParser xmlParser = ourCtx.newXmlParser().setPrettyPrint(true);
// Create an organization, note that the organization does not have an ID
Organization org = new Organization();
org.getName().setValue("Contained Test Organization");
org.setPartOf(new ResourceReferenceDt(org));
// Create a patient
Patient patient = new Patient();
patient.getManagingOrganization().setResource(org);
String encoded = xmlParser.encodeResourceToString(patient);
ourLog.info(encoded);
assertThat(encoded, containsString("<contained>"));
assertThat(encoded, containsString("<reference value=\"#1\"/>"));
}
@Test
public void testEncodeDeclaredExtensionWithAddressContent() {
IParser parser = ourCtx.newXmlParser();
@ -1265,9 +1234,8 @@ public class XmlParserTest {
String enc = ourCtx.newXmlParser().encodeResourceToString(patient);
assertThat(enc, containsString("<Patient xmlns=\"http://hl7.org/fhir\"><extension url=\"http://example.com/extensions#someext\"><valueDateTime value=\"2011-01-02T11:13:15\"/></extension>"));
assertThat(
enc,
containsString("<extension url=\"http://example.com#parent\"><extension url=\"http://example.com#child\"><valueString value=\"value1\"/></extension><extension url=\"http://example.com#child\"><valueString value=\"value1\"/></extension></extension>"));
assertThat(enc, containsString(
"<extension url=\"http://example.com#parent\"><extension url=\"http://example.com#child\"><valueString value=\"value1\"/></extension><extension url=\"http://example.com#child\"><valueString value=\"value1\"/></extension></extension>"));
assertThat(enc, containsString("<given value=\"Joe\"><extension url=\"http://examples.com#givenext\"><valueString value=\"given\"/></extension></given>"));
}
@ -1360,6 +1328,28 @@ public class XmlParserTest {
}
@Test
public void testParseAndEncodeHugeValue() {
int len = 1000000;
byte[] bytes = new byte[len];
for (int i = 0; i < len; i++) {
bytes[i] = (byte) (Math.random() * Byte.MAX_VALUE);
}
AttachmentDt att = new AttachmentDt();
att.setData(bytes);
Observation obs = new Observation();
obs.setValue(att);
String str = ourCtx.newXmlParser().encodeResourceToString(obs);
assertThat(str.length(), Matchers.greaterThan(len));
obs = ourCtx.newXmlParser().parseResource(Observation.class, str);
att = (AttachmentDt) obs.getValue();
assertArrayEquals(bytes, att.getData().getValue());
}
/**
* See #131
*/
@ -1685,6 +1675,20 @@ public class XmlParserTest {
}
@Test
public void testParseErrorHandlerDuplicateElement() {
String input = "<Patient><active value=\"true\"/><active value=\"false\"/></Patient>";
try {
ourCtx.newXmlParser().setParserErrorHandler(new StrictErrorHandler()).parseResource(Patient.class, input);
fail();
} catch (DataFormatException e) {
assertThat(e.getMessage(), containsString("Multiple repetitions"));
}
Patient p = ourCtx.newXmlParser().setParserErrorHandler(new LenientErrorHandler()).parseResource(Patient.class, input);
assertEquals("true", p.getActive().getValueAsString());
}
@Test
public void testParseErrorHandlerNoError() {
String input = "<Patient></Patient>";
@ -1719,20 +1723,6 @@ public class XmlParserTest {
assertEquals(p.getName().get(0).getFamily().get(0).getValue(), "AAA");
}
@Test
public void testParseErrorHandlerDuplicateElement() {
String input = "<Patient><active value=\"true\"/><active value=\"false\"/></Patient>";
try {
ourCtx.newXmlParser().setParserErrorHandler(new StrictErrorHandler()).parseResource(Patient.class, input);
fail();
} catch (DataFormatException e) {
assertThat(e.getMessage(), containsString("Multiple repetitions"));
}
Patient p = ourCtx.newXmlParser().setParserErrorHandler(new LenientErrorHandler()).parseResource(Patient.class, input);
assertEquals("true", p.getActive().getValueAsString());
}
@Test
public void testParseFeedWithListResource() throws ConfigurationException, DataFormatException, IOException {
@ -1781,13 +1771,30 @@ public class XmlParserTest {
}
@Test
public void testParseReferenceWithUnexpectedChild() {
//@formatter:off
String input =
"<Patient xmlns=\"http://hl7.org/fhir\">"
+ " <managingOrganization>"
+ " <reference value=\"Patient/123\"/>"
+ " <text value=\"BLAH\"/>"
+ " </managingOrganization>"
+ "</Patient>";
//@formatter:on
Patient parsed = ourCtx.newXmlParser().parseResource(Patient.class, input);
String output = ourCtx.newXmlParser().encodeResourceToString(parsed);
assertEquals("<Patient xmlns=\"http://hl7.org/fhir\"><managingOrganization><reference value=\"Patient/123\"/></managingOrganization></Patient>", output);
}
/**
* #175
*/
// @Test
// @Test
public void testParseTextWithUnknownEntity() {
String msg = "<Patient xmlns=\"http://hl7.org/fhir\"><text><status value=\"generated\"/>"
+ "<div xmlns=\"http://www.w3.org/1999/xhtml\">Trade &trade;</div></text></Patient>";
String msg = "<Patient xmlns=\"http://hl7.org/fhir\"><text><status value=\"generated\"/>" + "<div xmlns=\"http://www.w3.org/1999/xhtml\">Trade &trade;</div></text></Patient>";
Patient pt = ourCtx.newXmlParser().parseResource(Patient.class, msg);
ourLog.info(pt.getText().getDiv().getValueAsString());

4
src/changes/changes.xml
View File

@ -72,6 +72,10 @@
a trailing comma or an escaped backslash. Thanks to GitHub user
@SherryH for all of her help in diagnosing this issue!
</action>
<action type="fix">
Avoid crash when parsing if an invalid child element is found in
a resource reference.
</action>
</release>
<release version="1.1" date="2015-07-13">
<action type="add">