format code

Signed-off-by: caotc <250622148@qq.com>
pull/880/head
caotc 6 years ago
parent 0a1f712094
commit 2cacc97d94

@ -1,47 +1,48 @@
package com.alibaba.cloud.stream.binder.rocketmq.support;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import org.apache.rocketmq.common.message.MessageConst;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.messaging.MessageHeaders;
import org.springframework.util.Assert;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
/**
* Base for RocketMQ header mappers.
*
* @author caotc
* @date 2019-08-22
* @since 2.1.1
*/
public abstract class AbstractRocketMQHeaderMapper implements RocketMQHeaderMapper{
private static final Charset DEFAULT_CHARSET=StandardCharsets.UTF_8;
private Charset charset;
public AbstractRocketMQHeaderMapper() {
this(DEFAULT_CHARSET);
}
public AbstractRocketMQHeaderMapper(Charset charset) {
Assert.notNull(charset, "'charset' cannot be null");
this.charset = charset;
}
protected boolean matches(String headerName) {
return !MessageConst.STRING_HASH_SET.contains(headerName) && !MessageHeaders.ID.equals(headerName)
&& !MessageHeaders.TIMESTAMP.equals(headerName) && !MessageHeaders.CONTENT_TYPE.equals(headerName)
&& !MessageHeaders.REPLY_CHANNEL.equals(headerName) && !MessageHeaders.ERROR_CHANNEL.equals(headerName);
}
public Charset getCharset() {
return charset;
}
public void setCharset(Charset charset) {
Assert.notNull(charset, "'charset' cannot be null");
this.charset = charset;
}
* Base for RocketMQ header mappers.
*
* @author caotc
* @date 2019-08-22
* @since 2.1.1
*/
public abstract class AbstractRocketMQHeaderMapper implements RocketMQHeaderMapper {
private static final Charset DEFAULT_CHARSET = StandardCharsets.UTF_8;
private Charset charset;
public AbstractRocketMQHeaderMapper() {
this(DEFAULT_CHARSET);
}
public AbstractRocketMQHeaderMapper(Charset charset) {
Assert.notNull(charset, "'charset' cannot be null");
this.charset = charset;
}
protected boolean matches(String headerName) {
return !MessageConst.STRING_HASH_SET.contains(headerName)
&& !MessageHeaders.ID.equals(headerName)
&& !MessageHeaders.TIMESTAMP.equals(headerName)
&& !MessageHeaders.CONTENT_TYPE.equals(headerName)
&& !MessageHeaders.REPLY_CHANNEL.equals(headerName)
&& !MessageHeaders.ERROR_CHANNEL.equals(headerName);
}
public Charset getCharset() {
return charset;
}
public void setCharset(Charset charset) {
Assert.notNull(charset, "'charset' cannot be null");
this.charset = charset;
}
}

@ -1,258 +1,263 @@
package com.alibaba.cloud.stream.binder.rocketmq.support;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.collect.Maps;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.lang.Nullable;
import org.springframework.messaging.MessageHeaders;
import org.springframework.util.ClassUtils;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.*;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.collect.Maps;
/**
* jackson header mapper for RocketMQ.
* Header types are added to a special header {@link #JSON_TYPES}.
* jackson header mapper for RocketMQ. Header types are added to a special header
* {@link #JSON_TYPES}.
*
* @author caotc
* @date 2019-08-22
* @since 2.1.1
*/
public class JacksonRocketMQHeaderMapper extends AbstractRocketMQHeaderMapper{
private final static Logger log = LoggerFactory
.getLogger(JacksonRocketMQHeaderMapper.class);
private static final List<String> DEFAULT_TRUSTED_PACKAGES =
Arrays.asList(
"java.lang",
"java.net",
"java.util",
"org.springframework.util"
);
public class JacksonRocketMQHeaderMapper extends AbstractRocketMQHeaderMapper {
private final static Logger log = LoggerFactory
.getLogger(JacksonRocketMQHeaderMapper.class);
/**
* Header name for java types of other headers.
*/
public static final String JSON_TYPES = "spring_json_header_types";
private static final List<String> DEFAULT_TRUSTED_PACKAGES = Arrays
.asList("java.lang", "java.net", "java.util", "org.springframework.util");
private final ObjectMapper objectMapper;
private final Set<String> trustedPackages = new LinkedHashSet<>(DEFAULT_TRUSTED_PACKAGES);
/**
* Header name for java types of other headers.
*/
public static final String JSON_TYPES = "spring_json_header_types";
public JacksonRocketMQHeaderMapper(ObjectMapper objectMapper) {
this.objectMapper = objectMapper;
}
private final ObjectMapper objectMapper;
private final Set<String> trustedPackages = new LinkedHashSet<>(
DEFAULT_TRUSTED_PACKAGES);
public JacksonRocketMQHeaderMapper(Charset charset, ObjectMapper objectMapper) {
super(charset);
this.objectMapper = objectMapper;
}
public JacksonRocketMQHeaderMapper(ObjectMapper objectMapper) {
this.objectMapper = objectMapper;
}
@Override
public Map<String,String> fromHeaders(MessageHeaders headers) {
final Map<String, String> target = Maps.newHashMap();
final Map<String, String> jsonHeaders = Maps.newHashMap();
headers.forEach((key, value) -> {
if (matches(key)) {
if (value instanceof String) {
target.put(key, (String) value);
}else {
try {
String className = value.getClass().getName();
target.put(key, objectMapper.writeValueAsString(value));
jsonHeaders.put(key, className);
}
catch (Exception e) {
log.debug("Could not map " + key + " with type " + value.getClass().getName(),e);
}
}
}
});
if (jsonHeaders.size() > 0) {
try {
target.put(JSON_TYPES, objectMapper.writeValueAsString(jsonHeaders));
}
catch (IllegalStateException | JsonProcessingException e) {
log.error( "Could not add json types header",e);
}
}
return target;
}
public JacksonRocketMQHeaderMapper(Charset charset, ObjectMapper objectMapper) {
super(charset);
this.objectMapper = objectMapper;
}
@Override
public MessageHeaders toHeaders(Map<String,String> source) {
final Map<String, Object> target = Maps.newHashMap();
final Map<String, String> jsonTypes = decodeJsonTypes(source);
source.forEach((key,value) -> {
if (matches(key) && !(key.equals(JSON_TYPES))) {
if (jsonTypes != null && jsonTypes.containsKey(key)) {
Class<?> type = Object.class;
String requestedType = jsonTypes.get(key);
boolean trusted = trusted(requestedType);
if (trusted) {
try {
type = ClassUtils.forName(requestedType, null);
}catch (Exception e) {
log.error( "Could not load class for header: " + key,e);
}
}
@Override
public Map<String, String> fromHeaders(MessageHeaders headers) {
final Map<String, String> target = Maps.newHashMap();
final Map<String, String> jsonHeaders = Maps.newHashMap();
headers.forEach((key, value) -> {
if (matches(key)) {
if (value instanceof String) {
target.put(key, (String) value);
}
else {
try {
String className = value.getClass().getName();
target.put(key, objectMapper.writeValueAsString(value));
jsonHeaders.put(key, className);
}
catch (Exception e) {
log.debug("Could not map " + key + " with type "
+ value.getClass().getName(), e);
}
}
}
});
if (jsonHeaders.size() > 0) {
try {
target.put(JSON_TYPES, objectMapper.writeValueAsString(jsonHeaders));
}
catch (IllegalStateException | JsonProcessingException e) {
log.error("Could not add json types header", e);
}
}
return target;
}
if (trusted) {
try {
Object val = decodeValue(value, type);
target.put(key, val);
}
catch (IOException e) {
log.error("Could not decode json type: " + value + " for key: "
+ key,e);
target.put(key, value);
}
}else {
target.put(key, new NonTrustedHeaderType(value, requestedType));
}
}else {
target.put(key, value);
}
}
});
return new MessageHeaders(target);
}
@Override
public MessageHeaders toHeaders(Map<String, String> source) {
final Map<String, Object> target = Maps.newHashMap();
final Map<String, String> jsonTypes = decodeJsonTypes(source);
source.forEach((key, value) -> {
if (matches(key) && !(key.equals(JSON_TYPES))) {
if (jsonTypes != null && jsonTypes.containsKey(key)) {
Class<?> type = Object.class;
String requestedType = jsonTypes.get(key);
boolean trusted = trusted(requestedType);
if (trusted) {
try {
type = ClassUtils.forName(requestedType, null);
}
catch (Exception e) {
log.error("Could not load class for header: " + key, e);
}
}
/**
* @param packagesToTrust the packages to trust.
* @see #addTrustedPackages(Collection)
*/
public void addTrustedPackages(String... packagesToTrust) {
if(Objects.nonNull(packagesToTrust)){
addTrustedPackages(Arrays.asList(packagesToTrust));
}
}
if (trusted) {
try {
Object val = decodeValue(value, type);
target.put(key, val);
}
catch (IOException e) {
log.error("Could not decode json type: " + value
+ " for key: " + key, e);
target.put(key, value);
}
}
else {
target.put(key, new NonTrustedHeaderType(value, requestedType));
}
}
else {
target.put(key, value);
}
}
});
return new MessageHeaders(target);
}
/**
* Add packages to the trusted packages list (default {@code java.util, java.lang}) used
* when constructing objects from JSON.
* If any of the supplied packages is {@code "*"}, all packages are trusted.
* If a class for a non-trusted package is encountered, the header is returned to the
* application with value of type {@link NonTrustedHeaderType}.
* @param packagesToTrust the packages to trust.
*/
public void addTrustedPackages(Collection<String> packagesToTrust) {
if (packagesToTrust != null) {
for (String whiteList : packagesToTrust) {
if ("*".equals(whiteList)) {
this.trustedPackages.clear();
break;
}
else {
this.trustedPackages.add(whiteList);
}
}
}
}
/**
* @param packagesToTrust the packages to trust.
* @see #addTrustedPackages(Collection)
*/
public void addTrustedPackages(String... packagesToTrust) {
if (Objects.nonNull(packagesToTrust)) {
addTrustedPackages(Arrays.asList(packagesToTrust));
}
}
public Set<String> getTrustedPackages() {
return this.trustedPackages;
}
/**
* Add packages to the trusted packages list (default {@code java.util, java.lang})
* used when constructing objects from JSON. If any of the supplied packages is
* {@code "*"}, all packages are trusted. If a class for a non-trusted package is
* encountered, the header is returned to the application with value of type
* {@link NonTrustedHeaderType}.
* @param packagesToTrust the packages to trust.
*/
public void addTrustedPackages(Collection<String> packagesToTrust) {
if (packagesToTrust != null) {
for (String whiteList : packagesToTrust) {
if ("*".equals(whiteList)) {
this.trustedPackages.clear();
break;
}
else {
this.trustedPackages.add(whiteList);
}
}
}
}
public ObjectMapper getObjectMapper() {
return objectMapper;
}
public Set<String> getTrustedPackages() {
return this.trustedPackages;
}
private Object decodeValue(String jsonString, Class<?> type) throws IOException, LinkageError {
Object value = objectMapper.readValue(jsonString, type);
if (type.equals(NonTrustedHeaderType.class)) {
// Upstream NTHT propagated; may be trusted here...
NonTrustedHeaderType nth = (NonTrustedHeaderType) value;
if (trusted(nth.getUntrustedType())) {
try {
value = objectMapper.readValue(nth.getHeaderValue(),
ClassUtils.forName(nth.getUntrustedType(), null));
}
catch (Exception e) {
log.error("Could not decode header: " + nth,e);
}
}
}
return value;
}
public ObjectMapper getObjectMapper() {
return objectMapper;
}
@Nullable
private Map<String, String> decodeJsonTypes(Map<String, String> source) {
if(source.containsKey(JSON_TYPES)){
String value=source.get(JSON_TYPES);
try {
return objectMapper.readValue(value,new TypeReference<Map<String,String>>(){});
}
catch (IOException e) {
log.error("Could not decode json types: " + value,e);
}
}
return null;
}
private Object decodeValue(String jsonString, Class<?> type)
throws IOException, LinkageError {
Object value = objectMapper.readValue(jsonString, type);
if (type.equals(NonTrustedHeaderType.class)) {
// Upstream NTHT propagated; may be trusted here...
NonTrustedHeaderType nth = (NonTrustedHeaderType) value;
if (trusted(nth.getUntrustedType())) {
try {
value = objectMapper.readValue(nth.getHeaderValue(),
ClassUtils.forName(nth.getUntrustedType(), null));
}
catch (Exception e) {
log.error("Could not decode header: " + nth, e);
}
}
}
return value;
}
protected boolean trusted(String requestedType) {
if (requestedType.equals(NonTrustedHeaderType.class.getName())) {
return true;
}
if (!this.trustedPackages.isEmpty()) {
int lastDot = requestedType.lastIndexOf('.');
if (lastDot < 0) {
return false;
}
String packageName = requestedType.substring(0, lastDot);
for (String trustedPackage : this.trustedPackages) {
if (packageName.equals(trustedPackage) || packageName.startsWith(trustedPackage + ".")) {
return true;
}
}
return false;
}
return true;
}
@Nullable
private Map<String, String> decodeJsonTypes(Map<String, String> source) {
if (source.containsKey(JSON_TYPES)) {
String value = source.get(JSON_TYPES);
try {
return objectMapper.readValue(value,
new TypeReference<Map<String, String>>() {
});
}
catch (IOException e) {
log.error("Could not decode json types: " + value, e);
}
}
return null;
}
/**
* Represents a header that could not be decoded due to an untrusted type.
*/
public static class NonTrustedHeaderType {
protected boolean trusted(String requestedType) {
if (requestedType.equals(NonTrustedHeaderType.class.getName())) {
return true;
}
if (!this.trustedPackages.isEmpty()) {
int lastDot = requestedType.lastIndexOf('.');
if (lastDot < 0) {
return false;
}
String packageName = requestedType.substring(0, lastDot);
for (String trustedPackage : this.trustedPackages) {
if (packageName.equals(trustedPackage)
|| packageName.startsWith(trustedPackage + ".")) {
return true;
}
}
return false;
}
return true;
}
private String headerValue;
/**
* Represents a header that could not be decoded due to an untrusted type.
*/
public static class NonTrustedHeaderType {
private String untrustedType;
private String headerValue;
public NonTrustedHeaderType() {
super();
}
private String untrustedType;
NonTrustedHeaderType(String headerValue, String untrustedType) {
this.headerValue = headerValue;
this.untrustedType = untrustedType;
}
public NonTrustedHeaderType() {
super();
}
NonTrustedHeaderType(String headerValue, String untrustedType) {
this.headerValue = headerValue;
this.untrustedType = untrustedType;
}
public void setHeaderValue(String headerValue) {
this.headerValue = headerValue;
}
public void setHeaderValue(String headerValue) {
this.headerValue = headerValue;
}
public String getHeaderValue() {
return this.headerValue;
}
public String getHeaderValue() {
return this.headerValue;
}
public void setUntrustedType(String untrustedType) {
this.untrustedType = untrustedType;
}
public void setUntrustedType(String untrustedType) {
this.untrustedType = untrustedType;
}
public String getUntrustedType() {
return this.untrustedType;
}
public String getUntrustedType() {
return this.untrustedType;
}
@Override
public String toString() {
return "NonTrustedHeaderType [headerValue=" + headerValue
+ ", untrustedType=" + this.untrustedType + "]";
}
@Override
public String toString() {
return "NonTrustedHeaderType [headerValue=" + headerValue + ", untrustedType="
+ this.untrustedType + "]";
}
}
}
}

@ -1,27 +1,28 @@
package com.alibaba.cloud.stream.binder.rocketmq.support;
import org.springframework.messaging.MessageHeaders;
import java.util.Map;
import org.springframework.messaging.MessageHeaders;
/**
* header value mapper for RocketMQ
*
* @author caotc
* @date 2019-08-22
* @since 2.1.1
*/
* header value mapper for RocketMQ
*
* @author caotc
* @date 2019-08-22
* @since 2.1.1
*/
public interface RocketMQHeaderMapper {
/**
* Map from the given {@link MessageHeaders} to the specified target message.
* @param headers the abstracted MessageHeaders.
* @return the native target message.
*/
Map<String,String> fromHeaders(MessageHeaders headers);
/**
* Map from the given target message to abstracted {@link MessageHeaders}.
* @param source the native target message.
* @return the target headers.
*/
MessageHeaders toHeaders(Map<String,String> source);
/**
* Map from the given {@link MessageHeaders} to the specified target message.
* @param headers the abstracted MessageHeaders.
* @return the native target message.
*/
Map<String, String> fromHeaders(MessageHeaders headers);
/**
* Map from the given target message to abstracted {@link MessageHeaders}.
* @param source the native target message.
* @return the target headers.
*/
MessageHeaders toHeaders(Map<String, String> source);
}

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