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io.swagger.parser.SwaggerCompatConverter Maven / Gradle / Ivy
package io.swagger.parser;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import io.swagger.models.ArrayModel;
import io.swagger.models.AuthorizationScope;
import io.swagger.models.Contact;
import io.swagger.models.Info;
import io.swagger.models.License;
import io.swagger.models.Method;
import io.swagger.models.Model;
import io.swagger.models.ModelImpl;
import io.swagger.models.Operation;
import io.swagger.models.ParamType;
import io.swagger.models.PassAs;
import io.swagger.models.Path;
import io.swagger.models.RefModel;
import io.swagger.models.Response;
import io.swagger.models.Scheme;
import io.swagger.models.Swagger;
import io.swagger.models.SwaggerVersion;
import io.swagger.models.apideclaration.Api;
import io.swagger.models.apideclaration.ApiDeclaration;
import io.swagger.models.apideclaration.ExtendedTypedObject;
import io.swagger.models.apideclaration.Items;
import io.swagger.models.apideclaration.ModelProperty;
import io.swagger.models.apideclaration.ResponseMessage;
import io.swagger.models.auth.ApiKeyAuthDefinition;
import io.swagger.models.auth.AuthorizationValue;
import io.swagger.models.auth.BasicAuthDefinition;
import io.swagger.models.auth.In;
import io.swagger.models.auth.OAuth2Definition;
import io.swagger.models.parameters.BodyParameter;
import io.swagger.models.parameters.FormParameter;
import io.swagger.models.parameters.HeaderParameter;
import io.swagger.models.parameters.Parameter;
import io.swagger.models.parameters.PathParameter;
import io.swagger.models.parameters.QueryParameter;
import io.swagger.models.parameters.SerializableParameter;
import io.swagger.models.properties.ArrayProperty;
import io.swagger.models.properties.Property;
import io.swagger.models.properties.PropertyBuilder;
import io.swagger.models.properties.RefProperty;
import io.swagger.models.properties.StringProperty;
import io.swagger.models.properties.UntypedProperty;
import io.swagger.models.refs.RefFormat;
import io.swagger.models.resourcelisting.ApiInfo;
import io.swagger.models.resourcelisting.ApiKeyAuthorization;
import io.swagger.models.resourcelisting.ApiListingReference;
import io.swagger.models.resourcelisting.Authorization;
import io.swagger.models.resourcelisting.AuthorizationCodeGrant;
import io.swagger.models.resourcelisting.BasicAuthorization;
import io.swagger.models.resourcelisting.ImplicitGrant;
import io.swagger.models.resourcelisting.OAuth2Authorization;
import io.swagger.models.resourcelisting.ResourceListing;
import io.swagger.parser.util.ClasspathHelper;
import io.swagger.parser.util.RemoteUrl;
import io.swagger.parser.util.SwaggerDeserializationResult;
import io.swagger.report.MessageBuilder;
import io.swagger.transform.migrate.ApiDeclarationMigrator;
import io.swagger.transform.migrate.ResourceListingMigrator;
import io.swagger.util.Json;
import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.IOException;
import java.math.BigDecimal;
import java.net.URI;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
// legacy models
public class SwaggerCompatConverter implements SwaggerParserExtension {
static Logger LOGGER = LoggerFactory.getLogger(SwaggerCompatConverter.class);
@Override
public SwaggerDeserializationResult readWithInfo(JsonNode node) {
// not implemented
return null;
}
@Override
public SwaggerDeserializationResult readWithInfo(String location, List auths) {
SwaggerDeserializationResult result = new SwaggerDeserializationResult();
try {
Swagger swagger = read(location, auths);
if(swagger != null) {
result.setSwagger(swagger);
JsonNode jsonNode = Json.mapper().convertValue(swagger, JsonNode.class);
return new Swagger20Parser().readWithInfo(jsonNode);
}
}
catch (IOException e) {
// TODO
}
return result;
}
@Override
public Swagger read(JsonNode node) throws IOException {
// TODO
return null;
}
public Swagger read(String input) throws IOException {
return read(input, null);
}
@Override
public Swagger read(String input, List auths) throws IOException {
Swagger output = null;
MessageBuilder migrationMessages = new MessageBuilder();
SwaggerLegacyParser swaggerParser = new SwaggerLegacyParser();
ResourceListing resourceListing = null;
resourceListing = readResourceListing(input, migrationMessages, auths);
List apis = new ArrayList();
if (resourceListing != null) {
List refs = resourceListing.getApis();
boolean readAsSingleFile = false;
if (refs != null) {
for (ApiListingReference ref : refs) {
ApiDeclaration apiDeclaration = null;
JsonNode node = ref.getExtraFields();
JsonNode operations = node.get("operations");
if (operations != null) {
if (!readAsSingleFile) {
// this is a single-file swagger definition
apiDeclaration = readDeclaration(input, migrationMessages, auths);
readAsSingleFile = true; // avoid doing this again
}
} else {
String location = null;
if (input.startsWith("http")) {
// look up as url
String pathLocation = ref.getPath();
if (pathLocation.startsWith("http")) {
// use as absolute url
location = pathLocation;
} else {
if (pathLocation.startsWith("/")) {
// handle 1.1 specs
if(resourceListing.getSwaggerVersion().equals(SwaggerVersion.V1_1) &&
resourceListing.getExtraFields().get("basePath") != null) {
String basePath = resourceListing.getExtraFields().get("basePath").textValue();
location = basePath + pathLocation;
}
else {
location = input + pathLocation;
}
} else {
location = input + "/" + pathLocation;
}
}
} else {
// file system
File fileLocation = new File(input);
if (ref.getPath().startsWith("/")) {
location = fileLocation.getParent() + ref.getPath();
} else {
location = fileLocation.getParent() + File.separator + ref.getPath();
}
}
if (location.indexOf(".{format}") != -1) {
location = location.replaceAll("\\.\\{format\\}", ".json");
}
apiDeclaration = readDeclaration(location, migrationMessages, auths);
}
if (apiDeclaration != null) {
apis.add(apiDeclaration);
}
}
}
output = convert(resourceListing, apis);
}
return output;
}
public ResourceListing readResourceListing(String input, MessageBuilder messages, List auths) {
ResourceListing output = null;
JsonNode jsonNode = null;
try {
if (input.startsWith("http")) {
String json = RemoteUrl.urlToString(input, auths);
jsonNode = Json.mapper().readTree(json);
} else {
final String fileScheme = "file:";
java.nio.file.Path path;
if (input.toLowerCase().startsWith(fileScheme)) {
path = Paths.get(URI.create(input));
} else {
path = Paths.get(input);
}
String json;
if (Files.exists(path)) {
json= FileUtils.readFileToString(path.toFile(), "UTF-8");
} else {
json = ClasspathHelper.loadFileFromClasspath(input );
}
jsonNode = Json.mapper().readTree(json);
}
if (jsonNode == null || jsonNode.get("swaggerVersion") == null) {
return null;
}
ResourceListingMigrator migrator = new ResourceListingMigrator();
JsonNode transformed = migrator.migrate(messages, jsonNode);
output = Json.mapper().convertValue(transformed, ResourceListing.class);
} catch (java.lang.IllegalArgumentException e) {
return null;
} catch (Exception e) {
LOGGER.error("failed to read resource listing", e);
}
return output;
}
public Model convertModel(io.swagger.models.apideclaration.Model model) {
ModelImpl output = new ModelImpl();
output.setName(model.getId());
output.setDescription(model.getDescription());
output.setDiscriminator(model.getDiscriminator());
if (model.getRequired() != null) {
output.setRequired(model.getRequired());
}
for (String key : model.getProperties().keySet()) {
Property prop = convertProperty(model.getProperties().get(key));
if (prop != null) {
output.addProperty(key, prop);
}
}
return output;
}
public Property convertProperty(ModelProperty property) {
Property output = null;
output = propertyFromTypedObject(property);
output.setDescription(property.getDescription());
return output;
}
public Parameter convertParameter(io.swagger.models.apideclaration.Parameter param) {
Parameter output = null;
List _enum = param.getEnumValues();
if (ParamType.PATH.equals(param.getParamType())) {
PathParameter p = new PathParameter();
p.setDefaultValue(param.getDefaultValue());
p.setEnum(_enum);
output = p;
} else if (ParamType.QUERY.equals(param.getParamType())) {
QueryParameter p = new QueryParameter();
p.setDefaultValue(param.getDefaultValue());
p.setEnum(_enum);
output = p;
} else if (ParamType.HEADER.equals(param.getParamType())) {
HeaderParameter p = new HeaderParameter();
p.setDefaultValue(param.getDefaultValue());
p.setEnum(_enum);
output = p;
} else if (ParamType.BODY.equals(param.getParamType())) {
BodyParameter p = new BodyParameter();
output = p;
} else if (ParamType.FORM.equals(param.getParamType())) {
FormParameter p = new FormParameter();
p.setDefaultValue(param.getDefaultValue());
p.setEnum(_enum);
output = p;
}
output.setName(param.getName());
output.setDescription(param.getDescription());
if (param.getRequired() != null) {
output.setRequired(param.getRequired());
}
Property property = null;
String type = param.getType() == null ? null : param.getType().toString();
String format = param.getFormat() == null ? null : param.getFormat().toString();
if (null == type) {
LOGGER.warn("Empty type in Param: " + param);
}
if (output instanceof BodyParameter) {
BodyParameter bp = (BodyParameter) output;
bp.setSchema(modelFromExtendedTypedObject(param));
} else if (output instanceof SerializableParameter) {
SerializableParameter sp = (SerializableParameter) output;
Property p = null;
if (param.getAllowMultiple() != null && param.getAllowMultiple() == true) {
ArrayProperty arrayProperty = new ArrayProperty();
Property innerType = PropertyBuilder.build(type, format, null);
arrayProperty.setItems(innerType);
p = arrayProperty;
} else {
p = propertyFromTypedObject(param);
if (p == null) {
LOGGER.warn(String.format(
"WARNING! No property detected for parameter '%s' (%s)! Falling back to string!",
param.getName(), param.getParamType()));
p = new StringProperty();
}
}
if (p instanceof ArrayProperty) {
ArrayProperty ap = (ArrayProperty) p;
sp.setType("array");
sp.setCollectionFormat("csv");
sp.setItems(ap.getItems());
} else {
sp.setType(p.getType());
sp.setFormat(p.getFormat());
}
}
// all path parameters are required
if (output instanceof PathParameter) {
((PathParameter) output).setRequired(true);
}
return output;
}
public Model modelFromExtendedTypedObject(ExtendedTypedObject obj) {
String type = obj.getType() == null ? null : obj.getType().toString();
String format = obj.getFormat() == null ? null : obj.getFormat().toString();
Model output = null;
if (obj.getRef() != null) {
output = new RefModel().asDefault(obj.getRef());
} else {
if ("array".equals(type)) {
ArrayModel am = new ArrayModel();
Items items = obj.getItems();
type = items.getType() == null ? null : items.getType().toString();
format = items.getFormat() == null ? null : items.getFormat().toString();
Property innerType = PropertyBuilder.build(type, format, null);
if (innerType != null) {
am.setItems(innerType);
}
if (items.getRef() != null) {
am.setItems(new RefProperty(items.getRef(),RefFormat.INTERNAL));
} else {
am.setItems(new RefProperty(type,RefFormat.INTERNAL));
}
output = am;
} else {
Property input = PropertyBuilder.build(type, format, null);
if (input != null) {
output = PropertyBuilder.toModel(input);
} else if (!"void".equals(type)) {
//use ref model
output = new RefModel().asDefault(type);
}
}
}
return output;
}
public Property propertyFromTypedObject(ExtendedTypedObject obj) {
String type = obj.getType() == null ? null : obj.getType().toString();
String format = obj.getFormat() == null ? null : obj.getFormat().toString();
Property output = null;
if ("array".equals(type)) {
ArrayProperty am = new ArrayProperty();
Items items = obj.getItems();
if (items == null) {
LOGGER.error("Error! Missing array type for property! Assuming `object` -- please fix your spec");
items = new Items();
items.setType("object");
}
type = items.getType() == null ? null : items.getType().toString();
format = items.getFormat() == null ? null : items.getFormat().toString();
Map args = new HashMap<>();
if(items.getExtraFields().get("enum") != null && items.getExtraFields().get("enum").isArray()) {
ArrayNode an = (ArrayNode)items.getExtraFields().get("enum");
List enumValues = new ArrayList<>();
for(JsonNode jn : an) {
enumValues.add(jn.textValue());
}
args.put(PropertyBuilder.PropertyId.ENUM, enumValues);
}
Property innerType = PropertyBuilder.build(type, format, args);
if (innerType != null && !(innerType instanceof UntypedProperty)) {
am.setItems(innerType);
} else if (items.getRef() != null) {
am.setItems(new RefProperty(items.getRef(),RefFormat.INTERNAL));
} else {
am.setItems(new RefProperty(type,RefFormat.INTERNAL));
}
output = am;
} else {
Map args = new HashMap();
if (obj.getEnumValues() != null && obj.getEnumValues().size() > 0) {
args.put(PropertyBuilder.PropertyId.ENUM, obj.getEnumValues());
}
if (obj.getMinimum() != null) {
args.put(PropertyBuilder.PropertyId.MINIMUM, new BigDecimal(obj.getMinimum()));
}
if (obj.getMaximum() != null) {
args.put(PropertyBuilder.PropertyId.MAXIMUM, new BigDecimal(obj.getMaximum()));
}
Property i = PropertyBuilder.build(type, format, args);
if (i != null && !(i instanceof UntypedProperty)) {
output = i;
} else {
if (obj.getRef() != null) {
output = new RefProperty(obj.getRef(),RefFormat.INTERNAL);
} else if (type != null && !type.equals("void")) {
output = new RefProperty(type,RefFormat.INTERNAL);
}
}
}
return output;
}
public Operation convertOperation(String tag, io.swagger.models.apideclaration.Operation operation,
ApiDeclaration apiDeclaration) {
Method method;
if (operation.getMethod() == null) {
JsonNode node = (JsonNode) operation.getExtraFields().get("httpMethod");
method = Method.forValue(node.asText());
operation.setMethod(method);
}
Operation output = new Operation()
.summary(operation.getSummary())
.description(operation.getNotes())
.operationId(operation.getNickname());
if (tag != null) {
output.tag(tag);
}
for (io.swagger.models.apideclaration.Parameter parameter : operation.getParameters()) {
output.parameter(convertParameter(parameter));
}
if (operation.getConsumes() != null && !operation.getConsumes().isEmpty()) {
for (String consumes : operation.getConsumes()) {
output.consumes(consumes);
}
} else if (apiDeclaration.getConsumes() != null) {
for (String consumes : apiDeclaration.getConsumes()) {
output.consumes(consumes);
}
}
if (operation.getProduces() != null && !operation.getProduces().isEmpty()) {
for (String produces : operation.getProduces()) {
output.produces(produces);
}
} else if (apiDeclaration.getProduces() != null) {
for (String produces : apiDeclaration.getProduces()) {
output.produces(produces);
}
}
for (ResponseMessage message : operation.getResponseMessages()) {
Response response = new Response().description(message.getMessage());
Model responseModel = null;
if (message.getResponseModel() != null) {
response.setResponseSchema(new RefModel().asDefault(message.getResponseModel()));
}
output.response(message.getCode(), response);
}
// default response type
Model responseProperty = modelFromExtendedTypedObject(operation);
Response response = new Response()
.description("success")
.responseSchema(responseProperty);
if (output.getResponses() == null) {
output.defaultResponse(response);
} else if (responseProperty != null) {
output.response(200, response);
}
Map> auths = operation.getAuthorizations();
for (String securityName : auths.keySet()) {
List scopes = auths.get(securityName);
List updatedScopes = new ArrayList();
for (AuthorizationScope s : scopes) {
updatedScopes.add(s.getScope());
}
output.addSecurity(securityName, updatedScopes);
}
return output;
}
public ApiDeclaration readDeclaration(String input, MessageBuilder messages, List auths) {
ApiDeclaration output = null;
try {
JsonNode jsonNode = null;
if (input.startsWith("http")) {
String json = RemoteUrl.urlToString(input, auths);
jsonNode = Json.mapper().readTree(json);
} else {
final String fileScheme = "file:";
java.nio.file.Path path;
if (input.toLowerCase().startsWith(fileScheme)) {
path = Paths.get(URI.create(input));
} else {
path = Paths.get(input);
}
String json;
if (Files.exists(path)) {
json= FileUtils.readFileToString(path.toFile(), "UTF-8");
} else {
json = ClasspathHelper.loadFileFromClasspath(input );
}
jsonNode = Json.mapper().readTree(json);
}
// this should be moved to a json patch
if (jsonNode.isObject()) {
((ObjectNode) jsonNode).remove("authorizations");
}
ApiDeclarationMigrator migrator = new ApiDeclarationMigrator();
JsonNode transformed = migrator.migrate(messages, jsonNode);
output = Json.mapper().convertValue(transformed, ApiDeclaration.class);
} catch (java.lang.IllegalArgumentException e) {
return null;
} catch (Exception e) {
LOGGER.error("failed to read api declaration", e);
}
return output;
}
public Swagger convert(ResourceListing resourceListing, List apiDeclarations) {
Info info = new Info();
if (resourceListing.getInfo() != null) {
ApiInfo apiInfo = resourceListing.getInfo();
Contact contact = null;
if (apiInfo.getContact() != null) {
contact = new Contact()
.url(apiInfo.getContact());
}
License license = null;
if (apiInfo.getLicense() != null) {
license = new License()
.name(apiInfo.getLicense())
.url(apiInfo.getLicenseUrl());
}
info = new Info()
.description(apiInfo.getDescription())
.version(resourceListing.getApiVersion())
.title(apiInfo.getTitle())
.termsOfService(apiInfo.getTermsOfServiceUrl())
.contact(contact)
.license(license);
} else if (resourceListing.getApiVersion() != null) {
info = new Info()
.version(resourceListing.getApiVersion());
}
Map paths = new HashMap();
Map definitions = new HashMap();
String basePath = null;
for (ApiDeclaration apiDeclaration : apiDeclarations) {
String tag;
if (apiDeclaration.getApiListingRef() != null) {
String refPath = apiDeclaration.getApiListingRef().getPath();
tag = refPath.substring(refPath.lastIndexOf("/") + 1);
} else {
tag = apiDeclaration.getResourcePath();
}
if (tag != null) {
tag = tag.replaceAll("/", "");
}
if (basePath != null) {
if (!basePath.equals(apiDeclaration.getBasePath()) && apiDeclaration.getBasePath() != null) {
LOGGER.warn("warning! multiple basePath values not supported!");
}
} else {
basePath = apiDeclaration.getBasePath();
}
List apis = apiDeclaration.getApis();
for (Api api : apis) {
String apiPath = api.getPath();
String description = api.getDescription();
List ops = api.getOperations();
Path path = paths.get(apiPath);
if (path == null) {
path = new Path();
paths.put(apiPath, path);
}
for (io.swagger.models.apideclaration.Operation op : ops) {
Operation operation = convertOperation(tag, op, apiDeclaration);
if (op.getMethod() != null) {
path.set(op.getMethod().toString().toLowerCase(), operation);
} else {
LOGGER.info("skipping operation with missing method:\n" + Json.pretty(op));
}
}
}
// model definitions
Map apiModels = apiDeclaration.getModels();
for (String key : apiModels.keySet()) {
Model model = convertModel(apiModels.get(key));
definitions.put(key, model);
}
}
String host = null;
String scheme = "http";
if (basePath != null) {
String[] parts = basePath.split("://");
if (parts.length == 2) {
scheme = parts[0];
int pos = parts[1].indexOf("/");
if (pos != -1) {
host = parts[1].substring(0, pos);
basePath = parts[1].substring(pos);
} else {
host = parts[1];
basePath = "/";
}
}
if (!basePath.startsWith("/")) {
basePath = "/" + basePath;
}
}
Swagger swagger = new Swagger()
.host(host)
.scheme(Scheme.forValue(scheme))
.basePath(basePath)
.info(info)
// .securityRequirement(securityRequirement)
.paths(paths)
// .securityDefinitions(name, securityScheme)
.basePath(basePath);
swagger.setDefinitions(definitions);
// host is read from the api declarations
Map authorizations = resourceListing.getAuthorizations();
if (authorizations != null) {
for (String authNickname : authorizations.keySet()) {
Authorization auth = authorizations.get(authNickname);
if (auth instanceof OAuth2Authorization) {
OAuth2Authorization o2 = (OAuth2Authorization) auth;
List scopes = o2.getScopes();
if (o2.getGrantTypes().getImplicit() != null) {
ImplicitGrant ig = o2.getGrantTypes().getImplicit();
OAuth2Definition oauth2 = new OAuth2Definition()
.implicit(ig.getLoginEndpoint().getUrl());
if (swagger.getSecurityDefinitions() != null && swagger.getSecurityDefinitions().keySet().contains(authNickname)) {
System.err.println("Warning! Authorization nickname already in use!");
} else {
swagger.securityDefinition(authNickname, oauth2);
}
for (AuthorizationScope scope : scopes) {
oauth2.scope(scope.getScope(), scope.getDescription());
}
} else if (o2.getGrantTypes().getAuthorization_code() != null) {
AuthorizationCodeGrant ac = (AuthorizationCodeGrant) o2.getGrantTypes().getAuthorization_code();
OAuth2Definition oauth2 = new OAuth2Definition()
.accessCode(ac.getTokenRequestEndpoint().getUrl(), ac.getTokenEndpoint().getUrl());
if (swagger.getSecurityDefinitions() != null && swagger.getSecurityDefinitions().keySet().contains(authNickname)) {
System.err.println("Warning! Authorization nickname already in use!");
} else {
swagger.securityDefinition(authNickname, oauth2);
}
for (AuthorizationScope scope : scopes) {
oauth2.scope(scope.getScope(), scope.getDescription());
}
}
} else if (auth instanceof ApiKeyAuthorization) {
ApiKeyAuthorization o2 = (ApiKeyAuthorization) auth;
ApiKeyAuthDefinition def = new ApiKeyAuthDefinition();
PassAs passAs = o2.getPassAs();
if (PassAs.HEADER.equals(passAs)) {
def.in(In.HEADER);
} else {
def.in(In.QUERY);
}
def.setName(o2.getKeyname());
swagger.securityDefinition(authNickname, def);
} else if (auth instanceof BasicAuthorization) {
BasicAuthDefinition def = new BasicAuthDefinition();
swagger.securityDefinition(authNickname, def);
}
}
}
return swagger;
}
}
