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"use strict";
/**
* @license
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.loadFileDescriptorSetFromObject = exports.loadFileDescriptorSetFromBuffer = exports.fromJSON = exports.loadSync = exports.load = exports.IdempotencyLevel = exports.isAnyExtension = exports.Long = void 0;
const camelCase = require("lodash.camelcase");
const Protobuf = require("protobufjs");
const descriptor = require("protobufjs/ext/descriptor");
const util_1 = require("./util");
const Long = require("long");
exports.Long = Long;
function isAnyExtension(obj) {
return ('@type' in obj) && (typeof obj['@type'] === 'string');
}
exports.isAnyExtension = isAnyExtension;
var IdempotencyLevel;
(function (IdempotencyLevel) {
IdempotencyLevel["IDEMPOTENCY_UNKNOWN"] = "IDEMPOTENCY_UNKNOWN";
IdempotencyLevel["NO_SIDE_EFFECTS"] = "NO_SIDE_EFFECTS";
IdempotencyLevel["IDEMPOTENT"] = "IDEMPOTENT";
})(IdempotencyLevel = exports.IdempotencyLevel || (exports.IdempotencyLevel = {}));
const descriptorOptions = {
longs: String,
enums: String,
bytes: String,
defaults: true,
oneofs: true,
json: true,
};
function joinName(baseName, name) {
if (baseName === '') {
return name;
}
else {
return baseName + '.' + name;
}
}
function isHandledReflectionObject(obj) {
return (obj instanceof Protobuf.Service ||
obj instanceof Protobuf.Type ||
obj instanceof Protobuf.Enum);
}
function isNamespaceBase(obj) {
return obj instanceof Protobuf.Namespace || obj instanceof Protobuf.Root;
}
function getAllHandledReflectionObjects(obj, parentName) {
const objName = joinName(parentName, obj.name);
if (isHandledReflectionObject(obj)) {
return [[objName, obj]];
}
else {
if (isNamespaceBase(obj) && typeof obj.nested !== 'undefined') {
return Object.keys(obj.nested)
.map(name => {
return getAllHandledReflectionObjects(obj.nested[name], objName);
})
.reduce((accumulator, currentValue) => accumulator.concat(currentValue), []);
}
}
return [];
}
function createDeserializer(cls, options) {
return function deserialize(argBuf) {
return cls.toObject(cls.decode(argBuf), options);
};
}
function createSerializer(cls) {
return function serialize(arg) {
if (Array.isArray(arg)) {
throw new Error(`Failed to serialize message: expected object with ${cls.name} structure, got array instead`);
}
const message = cls.fromObject(arg);
return cls.encode(message).finish();
};
}
function mapMethodOptions(options) {
return (options || []).reduce((obj, item) => {
for (const [key, value] of Object.entries(item)) {
switch (key) {
case 'uninterpreted_option':
obj.uninterpreted_option.push(item.uninterpreted_option);
break;
default:
obj[key] = value;
}
}
return obj;
}, {
deprecated: false,
idempotency_level: IdempotencyLevel.IDEMPOTENCY_UNKNOWN,
uninterpreted_option: [],
});
}
function createMethodDefinition(method, serviceName, options, fileDescriptors) {
/* This is only ever called after the corresponding root.resolveAll(), so we
* can assume that the resolved request and response types are non-null */
const requestType = method.resolvedRequestType;
const responseType = method.resolvedResponseType;
return {
path: '/' + serviceName + '/' + method.name,
requestStream: !!method.requestStream,
responseStream: !!method.responseStream,
requestSerialize: createSerializer(requestType),
requestDeserialize: createDeserializer(requestType, options),
responseSerialize: createSerializer(responseType),
responseDeserialize: createDeserializer(responseType, options),
// TODO(murgatroid99): Find a better way to handle this
originalName: camelCase(method.name),
requestType: createMessageDefinition(requestType, fileDescriptors),
responseType: createMessageDefinition(responseType, fileDescriptors),
options: mapMethodOptions(method.parsedOptions),
};
}
function createServiceDefinition(service, name, options, fileDescriptors) {
const def = {};
for (const method of service.methodsArray) {
def[method.name] = createMethodDefinition(method, name, options, fileDescriptors);
}
return def;
}
function createMessageDefinition(message, fileDescriptors) {
const messageDescriptor = message.toDescriptor('proto3');
return {
format: 'Protocol Buffer 3 DescriptorProto',
type: messageDescriptor.$type.toObject(messageDescriptor, descriptorOptions),
fileDescriptorProtos: fileDescriptors,
};
}
function createEnumDefinition(enumType, fileDescriptors) {
const enumDescriptor = enumType.toDescriptor('proto3');
return {
format: 'Protocol Buffer 3 EnumDescriptorProto',
type: enumDescriptor.$type.toObject(enumDescriptor, descriptorOptions),
fileDescriptorProtos: fileDescriptors,
};
}
/**
* function createDefinition(obj: Protobuf.Service, name: string, options:
* Options): ServiceDefinition; function createDefinition(obj: Protobuf.Type,
* name: string, options: Options): MessageTypeDefinition; function
* createDefinition(obj: Protobuf.Enum, name: string, options: Options):
* EnumTypeDefinition;
*/
function createDefinition(obj, name, options, fileDescriptors) {
if (obj instanceof Protobuf.Service) {
return createServiceDefinition(obj, name, options, fileDescriptors);
}
else if (obj instanceof Protobuf.Type) {
return createMessageDefinition(obj, fileDescriptors);
}
else if (obj instanceof Protobuf.Enum) {
return createEnumDefinition(obj, fileDescriptors);
}
else {
throw new Error('Type mismatch in reflection object handling');
}
}
function createPackageDefinition(root, options) {
const def = {};
root.resolveAll();
const descriptorList = root.toDescriptor('proto3').file;
const bufferList = descriptorList.map(value => Buffer.from(descriptor.FileDescriptorProto.encode(value).finish()));
for (const [name, obj] of getAllHandledReflectionObjects(root, '')) {
def[name] = createDefinition(obj, name, options, bufferList);
}
return def;
}
function createPackageDefinitionFromDescriptorSet(decodedDescriptorSet, options) {
options = options || {};
const root = Protobuf.Root.fromDescriptor(decodedDescriptorSet);
root.resolveAll();
return createPackageDefinition(root, options);
}
/**
* Load a .proto file with the specified options.
* @param filename One or multiple file paths to load. Can be an absolute path
* or relative to an include path.
* @param options.keepCase Preserve field names. The default is to change them
* to camel case.
* @param options.longs The type that should be used to represent `long` values.
* Valid options are `Number` and `String`. Defaults to a `Long` object type
* from a library.
* @param options.enums The type that should be used to represent `enum` values.
* The only valid option is `String`. Defaults to the numeric value.
* @param options.bytes The type that should be used to represent `bytes`
* values. Valid options are `Array` and `String`. The default is to use
* `Buffer`.
* @param options.defaults Set default values on output objects. Defaults to
* `false`.
* @param options.arrays Set empty arrays for missing array values even if
* `defaults` is `false`. Defaults to `false`.
* @param options.objects Set empty objects for missing object values even if
* `defaults` is `false`. Defaults to `false`.
* @param options.oneofs Set virtual oneof properties to the present field's
* name
* @param options.json Represent Infinity and NaN as strings in float fields,
* and automatically decode google.protobuf.Any values.
* @param options.includeDirs Paths to search for imported `.proto` files.
*/
function load(filename, options) {
return (0, util_1.loadProtosWithOptions)(filename, options).then(loadedRoot => {
return createPackageDefinition(loadedRoot, options);
});
}
exports.load = load;
function loadSync(filename, options) {
const loadedRoot = (0, util_1.loadProtosWithOptionsSync)(filename, options);
return createPackageDefinition(loadedRoot, options);
}
exports.loadSync = loadSync;
function fromJSON(json, options) {
options = options || {};
const loadedRoot = Protobuf.Root.fromJSON(json);
loadedRoot.resolveAll();
return createPackageDefinition(loadedRoot, options);
}
exports.fromJSON = fromJSON;
function loadFileDescriptorSetFromBuffer(descriptorSet, options) {
const decodedDescriptorSet = descriptor.FileDescriptorSet.decode(descriptorSet);
return createPackageDefinitionFromDescriptorSet(decodedDescriptorSet, options);
}
exports.loadFileDescriptorSetFromBuffer = loadFileDescriptorSetFromBuffer;
function loadFileDescriptorSetFromObject(descriptorSet, options) {
const decodedDescriptorSet = descriptor.FileDescriptorSet.fromObject(descriptorSet);
return createPackageDefinitionFromDescriptorSet(decodedDescriptorSet, options);
}
exports.loadFileDescriptorSetFromObject = loadFileDescriptorSetFromObject;
(0, util_1.addCommonProtos)();
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