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package org.glassfish.jersey.server.internal.inject;
import java.io.UnsupportedEncodingException;
import java.lang.annotation.Annotation;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.function.Function;
import javax.ws.rs.Encoded;
import javax.ws.rs.FormParam;
import javax.ws.rs.ProcessingException;
import javax.ws.rs.core.Form;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.inject.Provider;
import javax.inject.Singleton;
import org.glassfish.jersey.internal.inject.ExtractorException;
import org.glassfish.jersey.internal.util.collection.NullableMultivaluedHashMap;
import org.glassfish.jersey.message.internal.MediaTypes;
import org.glassfish.jersey.message.internal.ReaderWriter;
import org.glassfish.jersey.server.ContainerRequest;
import org.glassfish.jersey.server.ParamException;
import org.glassfish.jersey.server.internal.InternalServerProperties;
import org.glassfish.jersey.server.internal.LocalizationMessages;
import org.glassfish.jersey.server.model.Parameter;
/**
* Value factory provider supporting the {@link FormParam} injection annotation.
*
* @author Paul Sandoz
* @author Marek Potociar (marek.potociar at oracle.com)
*/
@Singleton
final class FormParamValueParamProvider extends AbstractValueParamProvider {
/**
* Injection constructor.
*
* @param mpep extractor provider.
*/
public FormParamValueParamProvider(Provider mpep) {
super(mpep, Parameter.Source.FORM);
}
@Override
public Function createValueProvider(Parameter parameter) {
String parameterName = parameter.getSourceName();
if (parameterName == null || parameterName.isEmpty()) {
// Invalid query parameter name
return null;
}
MultivaluedParameterExtractor e = get(parameter);
if (e == null) {
return null;
}
return new FormParamValueProvider(e, !parameter.isEncoded());
}
private static final class FormParamValueProvider implements Function {
private static final Annotation encodedAnnotation = getEncodedAnnotation();
private final MultivaluedParameterExtractor extractor;
private final boolean decode;
FormParamValueProvider(MultivaluedParameterExtractor extractor, boolean decode) {
this.extractor = extractor;
this.decode = decode;
}
private static Form getCachedForm(final ContainerRequest request, boolean decode) {
return (Form) request.getProperty(decode ? InternalServerProperties
.FORM_DECODED_PROPERTY : InternalServerProperties.FORM_PROPERTY);
}
private static ContainerRequest ensureValidRequest(final ContainerRequest request) throws IllegalStateException {
if (request.getMethod().equals("GET")) {
throw new IllegalStateException(
LocalizationMessages.FORM_PARAM_METHOD_ERROR());
}
if (!MediaTypes.typeEqual(MediaType.APPLICATION_FORM_URLENCODED_TYPE, request.getMediaType())) {
throw new IllegalStateException(
LocalizationMessages.FORM_PARAM_CONTENT_TYPE_ERROR());
}
return request;
}
private static Annotation getEncodedAnnotation() {
/**
* Encoded-annotated class.
*/
@Encoded
final class EncodedAnnotationTemp {
}
return EncodedAnnotationTemp.class.getAnnotation(Encoded.class);
}
@Override
public Object apply(ContainerRequest request) {
Form form = getCachedForm(request, decode);
if (form == null) {
Form otherForm = getCachedForm(request, !decode);
if (otherForm != null) {
form = switchUrlEncoding(request, otherForm);
cacheForm(request, form);
} else {
form = getForm(request);
cacheForm(request, form);
}
}
try {
return extractor.extract(form.asMap());
} catch (ExtractorException e) {
throw new ParamException.FormParamException(e.getCause(),
extractor.getName(), extractor.getDefaultValueString());
}
}
private Form switchUrlEncoding(final ContainerRequest request, final Form otherForm) {
final Set>> entries = otherForm.asMap().entrySet();
MultivaluedMap formMap = new NullableMultivaluedHashMap<>();
for (Map.Entry> entry : entries) {
final String charsetName = ReaderWriter.getCharset(MediaType.valueOf(
request.getHeaderString(HttpHeaders.CONTENT_TYPE))).name();
String key;
try {
key = decode ? URLDecoder.decode(entry.getKey(), charsetName) : URLEncoder.encode(entry.getKey(),
charsetName);
for (String value : entry.getValue()) {
if (value != null) {
formMap.add(key,
decode ? URLDecoder.decode(value, charsetName) : URLEncoder.encode(value, charsetName));
} else {
formMap.add(key, null);
}
}
} catch (UnsupportedEncodingException uee) {
throw new ProcessingException(LocalizationMessages.ERROR_UNSUPPORTED_ENCODING(charsetName,
extractor.getName()), uee);
}
}
return new Form(formMap);
}
private void cacheForm(final ContainerRequest request, final Form form) {
request.setProperty(decode ? InternalServerProperties
.FORM_DECODED_PROPERTY : InternalServerProperties.FORM_PROPERTY, form);
}
private Form getForm(final ContainerRequest request) {
return getFormParameters(ensureValidRequest(request));
}
private Form getFormParameters(ContainerRequest request) {
if (MediaTypes.typeEqual(MediaType.APPLICATION_FORM_URLENCODED_TYPE, request.getMediaType())) {
request.bufferEntity();
Form form;
if (decode) {
form = request.readEntity(Form.class);
} else {
Annotation[] annotations = new Annotation[1];
annotations[0] = encodedAnnotation;
form = request.readEntity(Form.class, annotations);
}
return (form == null ? new Form() : form);
} else {
return new Form();
}
}
}
}