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400 lines (357 loc) · 14.7 KB
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#!/usr/bin/env node
import Ajv from 'ajv'
import GitHubSlugger from 'github-slugger'
import httpStatusCodes from 'http-status-code'
import { readFile } from 'fs/promises'
import { get, flatten, isPlainObject } from 'lodash-es'
import { parseTemplate } from 'url-template'
import renderContent from '../../../lib/render-content/index.js'
import getCodeSamples from './create-rest-examples.js'
import operationSchema from './operation-schema.js'
const { operationUrls } = JSON.parse(
await readFile('script/rest/utils/rest-api-overrides.json', 'utf8')
)
const slugger = new GitHubSlugger()
export default class Operation {
#operation
constructor(verb, requestPath, operation, globalServers) {
this.#operation = operation
// The global server object sets metadata including the base url for
// all operations in a version. Individual operations can override
// the global server url at the operation level.
this.serverUrl = operation.servers ? operation.servers[0].url : globalServers[0].url
const serverVariables = operation.servers
? operation.servers[0].variables
: globalServers[0].variables
if (serverVariables) {
const templateVariables = {}
Object.keys(serverVariables).forEach(
(key) => (templateVariables[key] = serverVariables[key].default)
)
this.serverUrl = parseTemplate(this.serverUrl).expand(templateVariables)
}
this.serverUrl = this.serverUrl.replace('http:', 'http(s):')
this.serverUrlOverride()
// Attach some global properties to the operation object to use
// during processing
this.#operation.serverUrl = this.serverUrl
this.#operation.requestPath = requestPath
this.#operation.verb = verb
this.verb = verb
this.requestPath = requestPath
this.title = operation.summary
this.setCategories()
this.parameters = operation.parameters || []
this.bodyParameters = []
this.enabledForGitHubApps = operation['x-github'].enabledForGitHubApps
this.codeExamples = getCodeSamples(this.#operation)
return this
}
setCategories() {
const operationId = this.#operation.operationId
const xGithub = this.#operation['x-github']
// Set category
// A temporary override file allows us to override the category defined in
// the openapi schema. Without it, we'd have to update several
// @documentation_urls in the api code every time we move
// an endpoint to a new page.
this.category = operationUrls[operationId]
? operationUrls[operationId].category
: xGithub.category
// Set subcategory
// A temporary override file allows us to override the subcategory
// defined in the openapi schema. Without it, we'd have to update several
// @documentation_urls in the api code every time we move
// an endpoint to a new page.
if (operationUrls[operationId]) {
if (operationUrls[operationId].subcategory) {
this.subcategory = operationUrls[operationId].subcategory
}
} else if (xGithub.subcategory) {
this.subcategory = xGithub.subcategory
}
}
serverUrlOverride() {
// TODO - remove this once github pull #214649
// lands in this repo's lib/rest/static/dereferenced directory
if (
this.#operation['x-github'].subcategory &&
this.#operation['x-github'].subcategory === 'management-console'
) {
this.serverUrl = this.serverUrl.replace('/api/v3', '')
}
}
async process() {
await Promise.all([
this.renderDescription(),
this.renderStatusCodes(),
this.renderParameterDescriptions(),
this.renderBodyParameterDescriptions(),
this.renderExampleResponseDescriptions(),
this.renderPreviewNotes(),
])
const ajv = new Ajv()
const valid = ajv.validate(operationSchema, this)
if (!valid) {
console.error(JSON.stringify(ajv.errors, null, 2))
throw new Error('Invalid OpenAPI operation found')
}
}
getExternalDocs() {
return this.#operation.externalDocs
}
async renderDescription() {
this.descriptionHTML = await renderContent(this.#operation.description)
return this
}
async renderExampleResponseDescriptions() {
return Promise.all(
this.codeExamples.map(async (codeExample) => {
codeExample.response.description = await renderContent(codeExample.response.description)
return codeExample
})
)
}
async renderStatusCodes() {
const responses = this.#operation.responses
const responseKeys = Object.keys(responses)
if (responseKeys.length === 0) return []
this.statusCodes = await Promise.all(
responseKeys.map(async (responseCode) => {
const response = responses[responseCode]
const httpStatusCode = responseCode
const httpStatusMessage = httpStatusCodes.getMessage(Number(responseCode), 'HTTP/2')
// The OpenAPI should be updated to provide better descriptions, but
// until then, we can catch some known generic descriptions and replace
// them with the default http status message.
const responseDescription =
response.description.toLowerCase() === 'response'
? await renderContent(httpStatusMessage)
: await renderContent(response.description)
return {
httpStatusCode,
description: responseDescription,
}
})
)
}
async renderParameterDescriptions() {
return Promise.all(
this.parameters.map(async (param) => {
param.descriptionHTML = await renderContent(param.description)
delete param.description
return param
})
)
}
async renderBodyParameterDescriptions() {
if (!this.#operation.requestBody) return []
const contentType = Object.keys(this.#operation.requestBody.content)[0]
let bodyParamsObject = get(
this.#operation,
`requestBody.content.${contentType}.schema.properties`,
{}
)
let requiredParams = get(
this.#operation,
`requestBody.content.${contentType}.schema.required`,
[]
)
const oneOfObject = get(
this.#operation,
`requestBody.content.${contentType}.schema.oneOf`,
undefined
)
// oneOf is an array of input parameter options, so we need to either
// use the first option or munge the options together.
if (oneOfObject) {
const firstOneOfObject = oneOfObject[0]
const allOneOfAreObjects =
oneOfObject.filter((elem) => elem.type === 'object').length === oneOfObject.length
// TODO: Remove this check
// This operation shouldn't have a oneOf in this case, it needs to be
// removed from the schema in the openapi schema repo.
if (this.#operation.operationId === 'checks/create') {
delete bodyParamsObject.oneOf
} else if (allOneOfAreObjects) {
// When all of the oneOf objects have the `type: object` we
// need to display all of the parameters.
// This merges all of the properties and required values into the
// first requestBody object.
for (let i = 1; i < oneOfObject.length; i++) {
Object.assign(firstOneOfObject.properties, oneOfObject[i].properties)
requiredParams = firstOneOfObject.required.concat(oneOfObject[i].required)
}
bodyParamsObject = firstOneOfObject.properties
} else if (oneOfObject) {
// When a oneOf exists but the `type` differs, the case has historically
// been that the alternate option is an array, where the first option
// is the array as a property of the object. We need to ensure that the
// first option listed is the most comprehensive and preferred option.
bodyParamsObject = firstOneOfObject.properties
requiredParams = firstOneOfObject.required
}
}
this.bodyParameters = await getBodyParams(bodyParamsObject, requiredParams)
}
async renderPreviewNotes() {
const previews = get(this.#operation, 'x-github.previews', [])
this.previews = await Promise.all(
previews.map(async (preview) => {
const note = preview.note
// remove extra leading and trailing newlines
.replace(/```\n\n\n/gm, '```\n')
.replace(/```\n\n/gm, '```\n')
.replace(/\n\n\n```/gm, '\n```')
.replace(/\n\n```/gm, '\n```')
// convert single-backtick code snippets to fully fenced triple-backtick blocks
// example: This is the description.\n\n`application/vnd.github.machine-man-preview+json`
.replace(/\n`application/, '\n```\napplication')
.replace(/json`$/, 'json\n```')
return await renderContent(note)
})
)
}
}
// need to use this function recursively to get child and grandchild params
async function getBodyParams(paramsObject, requiredParams) {
if (!isPlainObject(paramsObject)) return []
return Promise.all(
Object.keys(paramsObject).map(async (paramKey) => {
const param = paramsObject[paramKey]
param.name = paramKey
param.in = 'body'
param.rawType = param.type
// OpenAPI 3.0 only had a single value for `type`. OpenAPI 3.1
// will either be a single value or an array of values.
// This makes type an array regardless of how many values the array
// includes. This allows us to support 3.1 while remaining backwards
// compatible with 3.0.
if (!Array.isArray(param.type)) param.type = [param.type]
param.rawDescription = param.description
// Stores the types listed under the `Type` column in the `Parameters`
// table in the REST API docs. When the parameter contains oneOf
// there are multiple acceptable parameters that we should list.
const paramArray = []
const oneOfArray = param.oneOf
const isOneOfObjectOrArray = oneOfArray
? oneOfArray.filter((elem) => elem.type !== 'object' || elem.type !== 'array')
: false
// When oneOf has the type array or object, the type is defined
// in a child object
if (oneOfArray && isOneOfObjectOrArray.length > 0) {
// Store the defined types
paramArray.push(oneOfArray.filter((elem) => elem.type).map((elem) => elem.type))
// If an object doesn't have a description, it is invalid
const oneOfArrayWithDescription = oneOfArray.filter((elem) => elem.description)
// Use the parent description when set, otherwise enumerate each
// description in the `Description` column of the `Parameters` table.
if (!param.description && oneOfArrayWithDescription.length > 1) {
param.description = oneOfArray
.filter((elem) => elem.description)
.map((elem) => `**Type ${elem.type}** - ${elem.description}`)
.join('\n\n')
} else if (!param.description && oneOfArrayWithDescription.length === 1) {
// When there is only on valid description, use that one.
param.description = oneOfArrayWithDescription[0].description
}
}
// Arrays require modifying the displayed type (e.g., array of strings)
if (param.type.includes('array')) {
if (param.items.type) paramArray.push(`array of ${param.items.type}s`)
if (param.items.oneOf) {
paramArray.push(param.items.oneOf.map((elem) => `array of ${elem.type}s`))
}
// push the remaining types in the param.type array
// that aren't type array
const remainingItems = [...param.type]
const indexOfArrayType = remainingItems.indexOf('array')
remainingItems.splice(indexOfArrayType, 1)
paramArray.push(...remainingItems)
} else if (param.type) {
paramArray.push(...param.type)
}
// Supports backwards compatibility for OpenAPI 3.0
// In 3.1 a nullable type is part of the param.type array and
// the property param.nullable does not exist.
if (param.nullable) paramArray.push('null')
param.type = paramArray.flat().join(' or ')
param.description = param.description || ''
const isRequired = requiredParams && requiredParams.includes(param.name)
const requiredString = isRequired ? '**Required**. ' : ''
param.description = await renderContent(requiredString + param.description)
// there may be zero, one, or multiple object parameters that have children parameters
param.childParamsGroups = []
const childParamsGroup = await getChildParamsGroup(param)
if (childParamsGroup && childParamsGroup.params.length) {
param.childParamsGroups.push(childParamsGroup)
}
// If the param is an object, it may have child object params that have child params :/
// Objects can potentially be null where the rawType is [ 'object', 'null' ].
if (
param.rawType === 'object' ||
(Array.isArray(param.rawType) && param.rawType.includes('object'))
) {
param.childParamsGroups.push(
...flatten(
childParamsGroup.params
.filter((param) => param.childParamsGroups.length)
.map((param) => param.childParamsGroups)
)
)
}
return param
})
)
}
async function getChildParamsGroup(param) {
// Only objects, arrays of objects, anyOf, allOf, and oneOf have child params.
// Objects can potentially be null where the rawType is [ 'object', 'null' ].
if (
!(
param.rawType === 'array' ||
(Array.isArray(param.rawType) && param.rawType.includes('array')) ||
param.rawType === 'object' ||
(Array.isArray(param.rawType) && param.rawType.includes('object')) ||
param.oneOf
)
)
return
if (
param.oneOf &&
!param.oneOf.filter((param) => param.type === 'object' || param.type === 'array')
)
return
if (param.items && param.items.type !== 'object') return
const childParamsObject =
param.rawType === 'array' || (Array.isArray(param.rawType) && param.rawType.includes('array'))
? param.items.properties
: param.properties
const requiredParams =
param.rawType === 'array' || (Array.isArray(param.rawType) && param.rawType.includes('array'))
? param.items.required
: param.required
const childParams = await getBodyParams(childParamsObject, requiredParams)
// adjust the type for easier readability in the child table
let parentType
if (param.rawType === 'array') {
parentType = 'items'
} else if (Array.isArray(param.rawType) && param.rawType.includes('array')) {
// handle the case where rawType is [ 'array', 'null' ]
parentType = 'items'
} else if (Array.isArray(param.rawType) && param.rawType.includes('object')) {
// handle the case where rawType is [ 'object', 'null' ]
parentType = 'object'
} else {
parentType = param.rawType
}
// add an ID to the child table so they can be linked to
slugger.reset()
const id = slugger.slug(`${param.name}-${parentType}`)
return {
parentName: param.name,
parentType,
id,
params: childParams,
}
}
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