mage-validator
Version:
Validation utility for MAGE user commands & topics (TypeScript)
280 lines • 33.9 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const ValidatedTopic_1 = require("./ValidatedTopic");
const storage_1 = require("class-transformer/storage");
const classTransformer = require("class-transformer");
const mage = require("mage");
const util_1 = require("util");
const { Tome, ObjectTome, ArrayTome } = mage.require('tomes');
const ARRAY_GET_METHODS = [
'pop',
'shift'
];
const ARRAY_SLICE_METHODS = [
'slice',
'splice'
];
const ARRAY_PARSE_METHODS = [
'sort',
'forEach',
'filter',
'map',
'every',
'some',
'reduce',
'reduceRight',
'find',
'findIndex'
];
const ARRAY_SEARCH_METHODS = [
'includes'
];
function createToString(tome) {
return () => JSON.stringify(Tome.unTome(tome));
}
function createInspect(tome, className) {
return (depth = 1, options = {}) => {
options.depth = depth;
return className + ' -> ' + util_1.inspect(Tome.unTome(tome), options);
};
}
function proxifyOrUntome(t, ctor) {
if (ObjectTome.isObjectTome(t) || ArrayTome.isArrayTome(t)) {
return createTomeProxy(t, ctor);
}
return t.valueOf();
}
function processArrayTomeMethodRequest(target, key, ctor) {
// Entries iterator
if (key === 'entries') {
return target
.map((t) => proxifyOrUntome(t, ctor))
.entries;
}
// For pop, shift, etc
if (ARRAY_GET_METHODS.includes(key)) {
return (...args) => proxifyOrUntome(target[key](...args), ctor);
}
// For slice, splice, etc
if (ARRAY_SLICE_METHODS.includes(key)) {
return (...args) => target[key](...args)
.map((val) => proxifyOrUntome(val, ctor));
}
if (ARRAY_SEARCH_METHODS.includes(key)) {
return function (...args) {
const vals = target.map((t) => proxifyOrUntome(t, ctor));
return vals[key](...args);
};
}
// For methods receiving a function as a first parameter (map, reduce, forEach, etc)
if (ARRAY_PARSE_METHODS.includes(key)) {
return function (...args) {
const iterator = args[0];
args[0] = function (...iteratorArgs) {
iteratorArgs = iteratorArgs.map((t) => proxifyOrUntome(t, ctor));
return iterator(...iteratorArgs);
};
const ret = target[key](...args);
if (key === 'find') {
return ret ? proxifyOrUntome(ret, ctor) : ret;
}
if (key === 'filter') {
return ret.map((t) => proxifyOrUntome(t, ctor));
}
return ret;
};
}
// All other methods must be bound to the target
return target[key].bind(target);
}
function extractType(typeInfo, typeMap, key) {
if (typeInfo) {
return typeInfo.typeFunction();
}
if (typeMap[key]) {
return typeMap[key];
}
return Object;
}
/**
* Wrap tome and sub-tome instances intp proxies, allowing
* for direct access to attributes
*/
function createTomeProxy(tome, ctor) {
const typeMap = {};
const proxy = new Proxy(tome, {
ownKeys(target) {
return Object.keys(target).concat([
'__dirty__',
'__root__',
'__diff__',
'__diffEnabled__',
'__version__',
'__parent__',
'__key__'
]);
},
getPrototypeOf(target) {
if (ArrayTome.isArrayTome(target)) {
return Array.prototype;
}
/* istanbul ignore next */
return ctor.prototype || Object.prototype;
},
get(target, key) {
// Return a stringified object/array/etc
if (key === 'toString' || key === Symbol.toStringTag) {
return createToString(target);
}
// the type definition for util.inspect.custom seems to be missing
if (key === 'inspect' || key === util_1.inspect.custom) {
let name;
if (ArrayTome.isArrayTome(target)) {
name = 'Array';
}
else {
name = ctor.name;
}
return createInspect(target, name);
}
// Return the data structure's standard iterator
if (key === Symbol.iterator) {
/* istanbul ignore else */
if (ArrayTome.isArrayTome(target)) {
return target
.valueOf()
.map((t) => proxifyOrUntome(t, ctor))[Symbol.iterator];
}
/* istanbul ignore next*/
return target[Symbol.iterator];
}
// Return the correct constructor - we want
// ArrayTomes to appear as being Arrays,
// and everything else as the known type
if (key === 'constructor') {
if (ArrayTome.isArrayTome(target)) {
return Array;
}
return ctor;
}
// Extract the value
const val = target[key];
// Undefined means either the value is undefined,
// or we are trying to access a prototype method
if (val === undefined) {
if (ctor.prototype[key]) {
return ctor.prototype[key].bind(proxy);
}
return val;
}
// Create a ObjectTome or ArrayTome proxy
if (ObjectTome.isObjectTome(val) || ArrayTome.isArrayTome(val)) {
if (ArrayTome.isArrayTome(target)) {
return createTomeProxy(val, ctor);
}
const typeInfo = storage_1.defaultMetadataStorage.findTypeMetadata(ctor, key);
const childCtor = extractType(typeInfo, typeMap, key);
return createTomeProxy(target[key], childCtor);
}
// Mangle array functions so that they keep the proper
// context and proxy siblings when needed
if (typeof val === 'function' && ArrayTome.isArrayTome(target)) {
return processArrayTomeMethodRequest(target, key, ctor);
}
// TODO: map object method calls to their "real" prototype
// In all other cases, return the underlying value of the attribute
return val.valueOf();
},
set(target, key, value) {
target.set(key, value);
typeMap[key] = undefined;
if (value !== undefined && value !== null) {
typeMap[key] = value.constructor;
}
return true;
},
deleteProperty(_target, key) {
tome.del(key);
return true;
}
});
return proxy;
}
/**
* Dealing with tome topics
*/
class ValidatedTomeTopic extends ValidatedTopic_1.default {
static async create(state, index, data) {
const className = this.getClassName();
const typeMap = {};
const isTome = Tome.isTome(data);
const rawData = isTome ? Tome.unTome(data) : data;
const instance = classTransformer.plainToClass(this, rawData) || new this();
const tome = isTome ? data : Tome.conjure(instance);
instance.setTopic(className);
instance.setState(state);
await instance.setIndex(index);
const proxy = new Proxy(instance, {
ownKeys() {
return Object.keys(tome);
},
getOwnPropertyDescriptor(target, key) {
return { configurable: true, enumerable: true, value: this.get(target, key) };
},
get(target, key) {
if (key === 'toString' || key === Symbol.toStringTag) {
return createToString(tome);
}
// the type definition for util.inspect.custom seems to be missing
if (key === 'inspect' || key === util_1.inspect.custom) {
return createInspect(tome, className);
}
/* istanbul ignore next */
if (key === 'set' || key === 'del') {
return target[key];
}
if (key === 'constructor') {
return target.constructor;
}
if (key === 'getData') {
return () => tome;
}
if (!tome[key]) {
if (typeof target[key] === 'function') {
return target[key].bind(proxy);
}
if (key === '_state' || key === '_topic' || key === '_index') {
return target[key];
}
return undefined;
}
if (ObjectTome.isObjectTome(tome[key]) || ArrayTome.isArrayTome(tome[key])) {
const typeInfo = storage_1.defaultMetadataStorage.findTypeMetadata(target.constructor, key);
const ctor = extractType(typeInfo, typeMap, key);
return createTomeProxy(tome[key], ctor);
}
return tome[key].valueOf();
},
set(_target, key, value) {
tome.set(key, value);
typeMap[key] = undefined;
if (value !== undefined && value !== null) {
typeMap[key] = value.constructor;
}
return true;
},
deleteProperty(target, key) {
const val = tome[key];
if (Tome.isTome(val)) {
tome.del(key);
}
delete target[key];
return true;
}
});
return proxy;
}
}
ValidatedTomeTopic.mediaType = 'application/x-tome';
exports.default = ValidatedTomeTopic;
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ValidatedTopic, { IStaticThis, TopicData } from './ValidatedTopic'\nimport { defaultMetadataStorage } from 'class-transformer/storage'\nimport * as classTransformer from 'class-transformer'\n\nimport { archivist } from 'mage'\nimport * as mage from 'mage'\n\nimport { inspect } from 'util'\n\nconst { Tome, ObjectTome, ArrayTome } = mage.require('tomes')\n\nconst ARRAY_GET_METHODS = [\n  'pop',\n  'shift'\n]\n\nconst ARRAY_SLICE_METHODS = [\n  'slice',\n  'splice'\n]\n\nconst ARRAY_PARSE_METHODS = [\n  'sort',\n  'forEach',\n  'filter',\n  'map',\n  'every',\n  'some',\n  'reduce',\n  'reduceRight',\n  'find',\n  'findIndex'\n]\n\nconst ARRAY_SEARCH_METHODS = [\n  'includes'\n]\n\nfunction createToString(tome: any) {\n  return () => JSON.stringify(Tome.unTome(tome))\n}\n\nfunction createInspect(tome: any, className: string) {\n  return (depth: number = 1, options: any = {}) => {\n    options.depth = depth\n    return className + ' -> ' + inspect(Tome.unTome(tome), options)\n  }\n}\n\nfunction proxifyOrUntome(t: any, ctor: any) {\n  if (ObjectTome.isObjectTome(t) || ArrayTome.isArrayTome(t) ) {\n    return createTomeProxy(t, ctor)\n  }\n\n  return t.valueOf()\n}\n\nfunction processArrayTomeMethodRequest(target: any, key: string, ctor: any) {\n  // Entries iterator\n  if (key === 'entries') {\n    return target\n      .map((t: any) => proxifyOrUntome(t, ctor))\n      .entries\n  }\n\n  // For pop, shift, etc\n  if (ARRAY_GET_METHODS.includes(key)) {\n    return (...args: any[]) => proxifyOrUntome(target[key](...args), ctor)\n  }\n\n  // For slice, splice, etc\n  if (ARRAY_SLICE_METHODS.includes(key)) {\n    return (...args: any[]) => target[key](...args)\n      .map((val: any) => proxifyOrUntome(val, ctor))\n  }\n\n  if (ARRAY_SEARCH_METHODS.includes(key)) {\n    return function (...args: any[]) {\n      const vals = target.map((t: any) => proxifyOrUntome(t, ctor))\n\n      return vals[key](...args)\n    }\n  }\n\n  // For methods receiving a function as a first parameter (map, reduce, forEach, etc)\n  if (ARRAY_PARSE_METHODS.includes(key)) {\n    return function (...args: any[]) {\n      const iterator = args[0]\n      args[0] = function (...iteratorArgs: any[]) {\n        iteratorArgs = iteratorArgs.map((t: any) => proxifyOrUntome(t, ctor))\n\n        return iterator(...iteratorArgs)\n      }\n\n      const ret = target[key](...args)\n\n      if (key === 'find') {\n        return ret ? proxifyOrUntome(ret, ctor) : ret\n      }\n\n      if (key === 'filter') {\n        return ret.map((t: any) => proxifyOrUntome(t, ctor))\n      }\n\n      return ret\n    }\n  }\n\n  // All other methods must be bound to the target\n  return target[key].bind(target)\n}\n\nfunction extractType(typeInfo: any, typeMap: any, key: any) {\n  if (typeInfo) {\n    return typeInfo.typeFunction()\n  }\n\n  if (typeMap[key]) {\n    return typeMap[key]\n  }\n\n  return Object\n}\n\n/**\n * Wrap tome and sub-tome instances intp proxies, allowing\n * for direct access to attributes\n */\nfunction createTomeProxy(tome: any, ctor: any): any {\n  const typeMap: any = {}\n  const proxy: any = new Proxy(tome, {\n      ownKeys(target) {\n        return Object.keys(target).concat([\n          '__dirty__',\n          '__root__',\n          '__diff__',\n          '__diffEnabled__',\n          '__version__',\n          '__parent__',\n          '__key__'\n        ])\n      },\n      getPrototypeOf(target) {\n        if (ArrayTome.isArrayTome(target)) {\n          return Array.prototype\n        }\n\n        /* istanbul ignore next  */\n        return ctor.prototype || Object.prototype\n      },\n      get(target: any, key: any) {\n        // Return a stringified object/array/etc\n        if (key === 'toString' || key === Symbol.toStringTag) {\n          return createToString(target)\n        }\n\n        // the type definition for util.inspect.custom seems to be missing\n        if (key === 'inspect' || key === (<any> inspect).custom) {\n          let name: string\n          if (ArrayTome.isArrayTome(target)) {\n            name = 'Array'\n          } else {\n            name = ctor.name\n          }\n\n          return createInspect(target, name)\n        }\n\n        // Return the data structure's standard iterator\n        if (key === Symbol.iterator) {\n          /* istanbul ignore else */\n          if (ArrayTome.isArrayTome(target)) {\n            return target\n              .valueOf()\n              .map((t: any) => proxifyOrUntome(t, ctor))[Symbol.iterator]\n          }\n\n          /* istanbul ignore next*/\n          return target[Symbol.iterator]\n        }\n\n        // Return the correct constructor - we want\n        // ArrayTomes to appear as being Arrays,\n        // and everything else as the known type\n        if (key === 'constructor') {\n          if (ArrayTome.isArrayTome(target)) {\n            return Array\n          }\n\n          return ctor\n        }\n\n        // Extract the value\n        const val = target[key]\n\n        // Undefined means either the value is undefined,\n        // or we are trying to access a prototype method\n        if (val === undefined) {\n          if (ctor.prototype[key]) {\n            return ctor.prototype[key].bind(proxy)\n          }\n\n          return val\n        }\n\n        // Create a ObjectTome or ArrayTome proxy\n        if (ObjectTome.isObjectTome(val) || ArrayTome.isArrayTome(val)) {\n          if (ArrayTome.isArrayTome(target)) {\n            return createTomeProxy(val, ctor)\n          }\n\n          const typeInfo = defaultMetadataStorage.findTypeMetadata(ctor, <string> key)\n          const childCtor = extractType(typeInfo, typeMap, key)\n\n          return createTomeProxy(target[key], childCtor)\n        }\n\n        // Mangle array functions so that they keep the proper\n        // context and proxy siblings when needed\n        if (typeof val === 'function' && ArrayTome.isArrayTome(target)) {\n          return processArrayTomeMethodRequest(target, key, ctor)\n        }\n\n        // TODO: map object method calls to their \"real\" prototype\n\n        // In all other cases, return the underlying value of the attribute\n        return val.valueOf()\n      },\n      set(target: any, key: string, value) {\n        target.set(key, value)\n\n        typeMap[key] = undefined\n\n        if (value !== undefined && value !== null) {\n          typeMap[key] = value.constructor\n        }\n\n        return true\n      },\n      deleteProperty(_target, key: string) {\n        tome.del(key)\n\n        return true\n      }\n    })\n\n  return proxy\n}\n\n/**\n * Dealing with tome topics\n */\nexport default class ValidatedTomeTopic extends ValidatedTopic {\n  public static readonly mediaType = 'application/x-tome'\n\n  public static async create<I extends archivist.IArchivistIndex, T extends ValidatedTopic>(\n    this: IStaticThis<I, T>,\n    state: mage.core.IState,\n    index: I,\n    data?: TopicData<T>\n  ): Promise<T> {\n\n    const className = this.getClassName()\n    const typeMap: any = {}\n\n    const isTome = Tome.isTome(data)\n    const rawData: any = isTome ? Tome.unTome(data) : data\n    const instance = classTransformer.plainToClass<T, object>(this, rawData) || new this()\n    const tome: any = isTome ? data : Tome.conjure(instance)\n\n    instance.setTopic(className)\n    instance.setState(state)\n\n    await instance.setIndex(index)\n\n    const proxy: any = new Proxy(instance, {\n      ownKeys() {\n        return Object.keys(tome)\n      },\n      getOwnPropertyDescriptor(target: any, key) {\n       return { configurable: true, enumerable: true, value: this.get(target, key) }\n      },\n      get(target: any, key) {\n        if (key === 'toString' || key === Symbol.toStringTag) {\n          return createToString(tome)\n        }\n\n        // the type definition for util.inspect.custom seems to be missing\n        if (key === 'inspect' || key === (<any> inspect).custom) {\n          return createInspect(tome, className)\n        }\n\n        /* istanbul ignore next */\n        if (key === 'set' || key === 'del') {\n          return target[key]\n        }\n\n        if (key === 'constructor') {\n          return target.constructor\n        }\n\n        if (key === 'getData') {\n          return () => tome\n        }\n\n        if (!tome[key]) {\n          if (typeof target[key] === 'function') {\n            return target[key].bind(proxy)\n          }\n\n          if (key === '_state' || key === '_topic' || key === '_index' ) {\n            return target[key]\n          }\n\n          return undefined\n        }\n\n        if (ObjectTome.isObjectTome(tome[key]) || ArrayTome.isArrayTome(tome[key])) {\n          const typeInfo = defaultMetadataStorage.findTypeMetadata(target.constructor, <string> key)\n          const ctor = extractType(typeInfo, typeMap, key)\n\n          return createTomeProxy(tome[key], ctor)\n        }\n\n        return tome[key].valueOf()\n      },\n      set(_target: any, key, value) {\n        tome.set(key, value)\n\n        typeMap[key] = undefined\n\n        if (value !== undefined && value !== null) {\n          typeMap[key] = value.constructor\n        }\n\n        return true\n      },\n      deleteProperty(target, key) {\n        const val = tome[key]\n\n        if (Tome.isTome(val)) {\n          tome.del(key)\n        }\n\n        delete target[key]\n\n        return true\n      }\n    })\n\n    return proxy\n  }\n}\n"]}