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This commit is contained in:
syuilo 2017-03-03 02:10:27 +09:00
parent 789deecfe9
commit 2fee8fbba3
2 changed files with 64 additions and 147 deletions
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8
src/api/endpoints/posts/create.ts
View file

@ -27,11 +27,11 @@ module.exports = (params, user, app) =>
new Promise(async (res, rej) => new Promise(async (res, rej) =>
{ {
// Get 'text' parameter // Get 'text' parameter
const [text, textErr] = it(params.text).must.be.a.string().validate(isValidText).get(); const [text, textErr] = it(params.text).must.be.a.string().validate(isValidText).qed();
if (textErr) return rej('invalid text'); if (textErr) return rej('invalid text');
// Get 'media_ids' parameter // Get 'media_ids' parameter
const [mediaIds, mediaIdsErr] = it(params.media_ids).must.be.an.array().unique().range(1, 4).get(); const [mediaIds, mediaIdsErr] = it(params.media_ids).must.be.an.array().unique().range(1, 4).qed();
if (mediaIdsErr) return rej('invalid media_ids'); if (mediaIdsErr) return rej('invalid media_ids');
let files = []; let files = [];
@ -40,7 +40,7 @@ module.exports = (params, user, app) =>
// forEach だと途中でエラーなどがあっても return できないので // forEach だと途中でエラーなどがあっても return できないので
// 敢えて for を使っています。 // 敢えて for を使っています。
for (let i = 0; i < mediaIds.length; i++) { for (let i = 0; i < mediaIds.length; i++) {
const [mediaId, mediaIdErr] = it(mediaIds[i]).must.be.an.id().required().get(); const [mediaId, mediaIdErr] = it(mediaIds[i]).must.be.an.id().required().qed();
if (mediaIdErr) return rej('invalid media id'); if (mediaIdErr) return rej('invalid media id');
// Fetch file // Fetch file
@ -63,7 +63,7 @@ module.exports = (params, user, app) =>
} }
// Get 'repost_id' parameter // Get 'repost_id' parameter
const [repostId, repostIdErr] = it(params.repost_id).must.be.an.id().get(); const [repostId, repostIdErr] = it(params.repost_id).must.be.an.id().qed();
if (repostIdErr) return rej('invalid repost_id'); if (repostIdErr) return rej('invalid repost_id');
let repost = null; let repost = null;

203
src/api/it.ts
View file

@ -2,16 +2,16 @@ import * as mongo from 'mongodb';
import hasDuplicates from '../common/has-duplicates'; import hasDuplicates from '../common/has-duplicates';
type Validator<T> = (value: T) => boolean | Error; type Validator<T> = (value: T) => boolean | Error;
type Modifier<T> = (value: T) => T;
interface Factory { interface Factory {
get: () => [any, Error]; /**
* qedはQ.E.D.でもあり'QueryENd'の略でもある
*/
qed: () => [any, Error];
required: () => Factory; required: () => Factory;
validate: (validator: Validator<any>) => Factory; validate: (validator: Validator<any>) => Factory;
modify: (modifier: Modifier<any>) => Factory;
} }
class FactoryCore implements Factory { class FactoryCore implements Factory {
@ -36,7 +36,7 @@ class FactoryCore implements Factory {
/** /**
* このインスタンスの値およびエラーを取得します * このインスタンスの値およびエラーを取得します
*/ */
get(): [any, Error] { qed(): [any, Error] {
return [this.value, this.error]; return [this.value, this.error];
} }
@ -55,16 +55,6 @@ class FactoryCore implements Factory {
} }
return this; return this;
} }
modify(modifier: Modifier<any>) {
if (this.error || this.value === null) return this;
try {
this.value = modifier(this.value);
} catch (e) {
this.error = e;
}
return this;
}
} }
class BooleanFactory extends FactoryCore { class BooleanFactory extends FactoryCore {
@ -92,8 +82,8 @@ class BooleanFactory extends FactoryCore {
/** /**
* このインスタンスの値およびエラーを取得します * このインスタンスの値およびエラーを取得します
*/ */
get(): [boolean, Error] { qed(): [boolean, Error] {
return super.get(); return super.qed();
} }
/** /**
@ -104,10 +94,6 @@ class BooleanFactory extends FactoryCore {
validate(validator: Validator<boolean>) { validate(validator: Validator<boolean>) {
return super.validate(validator); return super.validate(validator);
} }
modify(modifier: Modifier<boolean>) {
return super.modify(modifier);
}
} }
class NumberFactory extends FactoryCore { class NumberFactory extends FactoryCore {
@ -148,8 +134,8 @@ class NumberFactory extends FactoryCore {
/** /**
* このインスタンスの値およびエラーを取得します * このインスタンスの値およびエラーを取得します
*/ */
get(): [number, Error] { qed(): [number, Error] {
return super.get(); return super.qed();
} }
/** /**
@ -160,10 +146,6 @@ class NumberFactory extends FactoryCore {
validate(validator: Validator<number>) { validate(validator: Validator<number>) {
return super.validate(validator); return super.validate(validator);
} }
modify(modifier: Modifier<number>) {
return super.modify(modifier);
}
} }
class StringFactory extends FactoryCore { class StringFactory extends FactoryCore {
@ -210,8 +192,8 @@ class StringFactory extends FactoryCore {
/** /**
* このインスタンスの値およびエラーを取得します * このインスタンスの値およびエラーを取得します
*/ */
get(): [string, Error] { qed(): [string, Error] {
return super.get(); return super.qed();
} }
/** /**
@ -222,10 +204,6 @@ class StringFactory extends FactoryCore {
validate(validator: Validator<string>) { validate(validator: Validator<string>) {
return super.validate(validator); return super.validate(validator);
} }
modify(modifier: Modifier<string>) {
return super.modify(modifier);
}
} }
class ArrayFactory extends FactoryCore { class ArrayFactory extends FactoryCore {
@ -277,8 +255,8 @@ class ArrayFactory extends FactoryCore {
/** /**
* このインスタンスの値およびエラーを取得します * このインスタンスの値およびエラーを取得します
*/ */
get(): [any[], Error] { qed(): [any[], Error] {
return super.get(); return super.qed();
} }
/** /**
@ -289,10 +267,6 @@ class ArrayFactory extends FactoryCore {
validate(validator: Validator<any[]>) { validate(validator: Validator<any[]>) {
return super.validate(validator); return super.validate(validator);
} }
modify(modifier: Modifier<any[]>) {
return super.modify(modifier);
}
} }
class IdFactory extends FactoryCore { class IdFactory extends FactoryCore {
@ -320,8 +294,8 @@ class IdFactory extends FactoryCore {
/** /**
* このインスタンスの値およびエラーを取得します * このインスタンスの値およびエラーを取得します
*/ */
get(): [any[], Error] { qed(): [any[], Error] {
return super.get(); return super.qed();
} }
/** /**
@ -332,10 +306,6 @@ class IdFactory extends FactoryCore {
validate(validator: Validator<any[]>) { validate(validator: Validator<any[]>) {
return super.validate(validator); return super.validate(validator);
} }
modify(modifier: Modifier<any[]>) {
return super.modify(modifier);
}
} }
class ObjectFactory extends FactoryCore { class ObjectFactory extends FactoryCore {
@ -363,8 +333,8 @@ class ObjectFactory extends FactoryCore {
/** /**
* このインスタンスの値およびエラーを取得します * このインスタンスの値およびエラーを取得します
*/ */
get(): [any, Error] { qed(): [any, Error] {
return super.get(); return super.qed();
} }
/** /**
@ -375,13 +345,9 @@ class ObjectFactory extends FactoryCore {
validate(validator: Validator<any>) { validate(validator: Validator<any>) {
return super.validate(validator); return super.validate(validator);
} }
modify(modifier: Modifier<any>) {
return super.modify(modifier);
}
} }
type MustBe = { type It = {
must: { must: {
be: { be: {
a: { a: {
@ -396,9 +362,17 @@ type MustBe = {
}; };
}; };
}; };
expect: {
string: () => StringFactory;
number: () => NumberFactory;
boolean: () => BooleanFactory;
id: () => IdFactory;
array: () => ArrayFactory;
object: () => ObjectFactory;
};
}; };
const mustBe = (value: any) => ({ const it = (value: any) => ({
must: { must: {
be: { be: {
a: { a: {
@ -412,107 +386,50 @@ const mustBe = (value: any) => ({
object: () => new ObjectFactory(value) object: () => new ObjectFactory(value)
} }
} }
},
expect: {
string: () => new StringFactory(value),
number: () => new NumberFactory(value),
boolean: () => new BooleanFactory(value),
id: () => new IdFactory(value),
array: () => new ArrayFactory(value),
object: () => new ObjectFactory(value)
} }
}); });
type Type = 'id' | 'string' | 'number' | 'boolean' | 'array' | 'set' | 'object'; type Type = 'id' | 'string' | 'number' | 'boolean' | 'array' | 'set' | 'object';
type Pipe<T> = (x: T) => T | boolean | Error;
function validate(value: any, type: 'id', isRequired?: boolean, pipe?: Pipe<mongo.ObjectID> | Pipe<mongo.ObjectID>[]): [mongo.ObjectID, Error]; function x(value: any): It;
function validate(value: any, type: 'string', isRequired?: boolean, pipe?: Pipe<string> | Pipe<string>[]): [string, Error]; function x(value: any, type: 'id', isRequired?: boolean, validator?: Validator<mongo.ObjectID> | Validator<mongo.ObjectID>[]): [mongo.ObjectID, Error];
function validate(value: any, type: 'number', isRequired?: boolean, pipe?: Pipe<number> | Pipe<number>[]): [number, Error]; function x(value: any, type: 'string', isRequired?: boolean, validator?: Validator<string> | Validator<string>[]): [string, Error];
function validate(value: any, type: 'boolean', isRequired?: boolean): [boolean, Error]; function x(value: any, type: 'number', isRequired?: boolean, validator?: Validator<number> | Validator<number>[]): [number, Error];
function validate(value: any, type: 'array', isRequired?: boolean, pipe?: Pipe<any[]> | Pipe<any[]>[]): [any[], Error]; function x(value: any, type: 'boolean', isRequired?: boolean): [boolean, Error];
function validate(value: any, type: 'set', isRequired?: boolean, pipe?: Pipe<any[]> | Pipe<any[]>[]): [any[], Error]; function x(value: any, type: 'array', isRequired?: boolean, validator?: Validator<any[]> | Validator<any[]>[]): [any[], Error];
function validate(value: any, type: 'object', isRequired?: boolean, pipe?: Pipe<any> | Pipe<any>[]): [any, Error]; function x(value: any, type: 'set', isRequired?: boolean, validator?: Validator<any[]> | Validator<any[]>[]): [any[], Error];
function validate(value: any, type: Type, isRequired?: boolean, pipe?: Pipe<any> | Pipe<any>[]): [any, Error] { function x(value: any, type: 'object', isRequired?: boolean, validator?: Validator<any> | Validator<any>[]): [any, Error];
if (value === undefined || value === null) { function x(value: any, type?: Type, isRequired?: boolean, validator?: Validator<any> | Validator<any>[]): any {
if (isRequired) { if (typeof type === 'undefined') return it(value);
return [null, new Error('is-required')]
} else { let factory: Factory = null;
return [null, null]
}
}
switch (type) { switch (type) {
case 'id': case 'id': factory = it(value).expect.id(); break;
if (typeof value != 'string' || !mongo.ObjectID.isValid(value)) { case 'string': factory = it(value).expect.string(); break;
return [null, new Error('incorrect-id')]; case 'number': factory = it(value).expect.number(); break;
} case 'boolean': factory = it(value).expect.boolean(); break;
break; case 'array': factory = it(value).expect.array(); break;
case 'set': factory = it(value).expect.array().unique(); break;
case 'string': case 'object': factory = it(value).expect.object(); break;
if (typeof value != 'string') {
return [null, new Error('must-be-a-string')];
}
break;
case 'number':
if (!Number.isFinite(value)) {
return [null, new Error('must-be-a-number')];
}
break;
case 'boolean':
if (typeof value != 'boolean') {
return [null, new Error('must-be-a-boolean')];
}
break;
case 'array':
if (!Array.isArray(value)) {
return [null, new Error('must-be-an-array')];
}
break;
case 'set':
if (!Array.isArray(value)) {
return [null, new Error('must-be-an-array')];
} else if (hasDuplicates(value)) {
return [null, new Error('duplicated-contents')];
}
break;
case 'object':
if (typeof value != 'object') {
return [null, new Error('must-be-an-object')];
}
break;
} }
if (type == 'id') value = new mongo.ObjectID(value); if (isRequired) factory = factory.required();
if (pipe) { if (validator) {
const pipes = Array.isArray(pipe) ? pipe : [pipe]; (Array.isArray(validator) ? validator : [validator])
for (let i = 0; i < pipes.length; i++) { .forEach(v => factory = factory.validate(v));
const result = pipes[i](value);
if (result === false) {
return [null, new Error('invalid-format')];
} else if (result instanceof Error) {
return [null, result];
} else if (result !== true) {
value = result;
}
}
} }
return [value, null]; return factory;
} }
function it(value: any): MustBe; export default x;
function it(value: any, type: 'id', isRequired?: boolean, pipe?: Pipe<mongo.ObjectID> | Pipe<mongo.ObjectID>[]): [mongo.ObjectID, Error];
function it(value: any, type: 'string', isRequired?: boolean, pipe?: Pipe<string> | Pipe<string>[]): [string, Error];
function it(value: any, type: 'number', isRequired?: boolean, pipe?: Pipe<number> | Pipe<number>[]): [number, Error];
function it(value: any, type: 'boolean', isRequired?: boolean): [boolean, Error];
function it(value: any, type: 'array', isRequired?: boolean, pipe?: Pipe<any[]> | Pipe<any[]>[]): [any[], Error];
function it(value: any, type: 'set', isRequired?: boolean, pipe?: Pipe<any[]> | Pipe<any[]>[]): [any[], Error];
function it(value: any, type: 'object', isRequired?: boolean, pipe?: Pipe<any> | Pipe<any>[]): [any, Error];
function it(value: any, type?: any, isRequired?: boolean, pipe?: Pipe<any> | Pipe<any>[]): any {
if (typeof type === 'undefined') {
return mustBe(value);
} else {
return validate(value, type, isRequired, pipe);
}
}
export default it;