wikijs-fork/server/modules/storage/azure/storage.js

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const { BlobServiceClient, StorageSharedKeyCredential } = require('@azure/storage-blob')
const stream = require('stream')
const Promise = require('bluebird')
const pipeline = Promise.promisify(stream.pipeline)
const pageHelper = require('../../../helpers/page.js')
const _ = require('lodash')
/* global WIKI */
const getFilePath = (page, pathKey) => {
const fileName = `${page[pathKey]}.${pageHelper.getFileExtension(page.contentType)}`
const withLocaleCode = WIKI.config.lang.namespacing && WIKI.config.lang.code !== page.localeCode
return withLocaleCode ? `${page.localeCode}/${fileName}` : fileName
}
module.exports = {
async activated() {
},
async deactivated() {
},
async init() {
WIKI.logger.info(`(STORAGE/AZURE) Initializing...`)
const { accountName, accountKey, containerName } = this.config
this.client = new BlobServiceClient(
`https://${accountName}.blob.core.windows.net`,
new StorageSharedKeyCredential(accountName, accountKey)
)
this.container = this.client.getContainerClient(containerName)
try {
await this.container.create()
} catch (err) {
if (err.statusCode !== 409) {
WIKI.logger.warn(err)
throw err
}
}
WIKI.logger.info(`(STORAGE/AZURE) Initialization completed.`)
},
async created (page) {
WIKI.logger.info(`(STORAGE/AZURE) Creating file ${page.path}...`)
const filePath = getFilePath(page, 'path')
const pageContent = page.injectMetadata()
const blockBlobClient = this.container.getBlockBlobClient(filePath)
await blockBlobClient.upload(pageContent, pageContent.length, { tier: this.config.storageTier })
},
async updated (page) {
WIKI.logger.info(`(STORAGE/AZURE) Updating file ${page.path}...`)
const filePath = getFilePath(page, 'path')
const pageContent = page.injectMetadata()
const blockBlobClient = this.container.getBlockBlobClient(filePath)
await blockBlobClient.upload(pageContent, pageContent.length, { tier: this.config.storageTier })
},
async deleted (page) {
WIKI.logger.info(`(STORAGE/AZURE) Deleting file ${page.path}...`)
const filePath = getFilePath(page, 'path')
const blockBlobClient = this.container.getBlockBlobClient(filePath)
await blockBlobClient.delete({
deleteSnapshots: 'include'
})
},
async renamed(page) {
WIKI.logger.info(`(STORAGE/${this.storageName}) Renaming file ${page.path} to ${page.destinationPath}...`)
let sourceFilePath = getFilePath(page, 'path')
let destinationFilePath = getFilePath(page, 'destinationPath')
if (WIKI.config.lang.namespacing) {
if (WIKI.config.lang.code !== page.localeCode) {
sourceFilePath = `${page.localeCode}/${sourceFilePath}`
}
if (WIKI.config.lang.code !== page.destinationLocaleCode) {
destinationFilePath = `${page.destinationLocaleCode}/${destinationFilePath}`
}
}
const sourceBlockBlobClient = this.container.getBlockBlobClient(sourceFilePath)
const destBlockBlobClient = this.container.getBlockBlobClient(destinationFilePath)
await destBlockBlobClient.syncCopyFromURL(sourceBlockBlobClient.url)
await sourceBlockBlobClient.delete({
deleteSnapshots: 'include'
})
},
/**
* ASSET UPLOAD
*
* @param {Object} asset Asset to upload
*/
async assetUploaded (asset) {
WIKI.logger.info(`(STORAGE/AZURE) Creating new file ${asset.path}...`)
const blockBlobClient = this.container.getBlockBlobClient(asset.path)
await blockBlobClient.upload(asset.data, asset.data.length, { tier: this.config.storageTier })
},
/**
* ASSET DELETE
*
* @param {Object} asset Asset to delete
*/
async assetDeleted (asset) {
WIKI.logger.info(`(STORAGE/AZURE) Deleting file ${asset.path}...`)
const blockBlobClient = this.container.getBlockBlobClient(asset.path)
await blockBlobClient.delete({
deleteSnapshots: 'include'
})
},
/**
* ASSET RENAME
*
* @param {Object} asset Asset to rename
*/
async assetRenamed (asset) {
WIKI.logger.info(`(STORAGE/AZURE) Renaming file from ${asset.path} to ${asset.destinationPath}...`)
const sourceBlockBlobClient = this.container.getBlockBlobClient(asset.path)
const destBlockBlobClient = this.container.getBlockBlobClient(asset.destinationPath)
await destBlockBlobClient.syncCopyFromURL(sourceBlockBlobClient.url)
await sourceBlockBlobClient.delete({
deleteSnapshots: 'include'
})
},
async getLocalLocation () {
},
/**
* HANDLERS
*/
async exportAll() {
WIKI.logger.info(`(STORAGE/AZURE) Exporting all content to Azure Blob Storage...`)
// -> Pages
await pipeline(
WIKI.models.knex.column('path', 'localeCode', 'title', 'description', 'contentType', 'content', 'isPublished', 'updatedAt').select().from('pages').where({
isPrivate: false
}).stream(),
new stream.Transform({
objectMode: true,
transform: async (page, enc, cb) => {
const filePath = getFilePath(page, 'path')
WIKI.logger.info(`(STORAGE/AZURE) Adding page ${filePath}...`)
const pageContent = pageHelper.injectPageMetadata(page)
const blockBlobClient = this.container.getBlockBlobClient(filePath)
await blockBlobClient.upload(pageContent, pageContent.length, { tier: this.config.storageTier })
cb()
}
})
)
// -> Assets
const assetFolders = await WIKI.models.assetFolders.getAllPaths()
await pipeline(
WIKI.models.knex.column('filename', 'folderId', 'data').select().from('assets').join('assetData', 'assets.id', '=', 'assetData.id').stream(),
new stream.Transform({
objectMode: true,
transform: async (asset, enc, cb) => {
const filename = (asset.folderId && asset.folderId > 0) ? `${_.get(assetFolders, asset.folderId)}/${asset.filename}` : asset.filename
WIKI.logger.info(`(STORAGE/AZURE) Adding asset ${filename}...`)
const blockBlobClient = this.container.getBlockBlobClient(filename)
await blockBlobClient.upload(asset.data, asset.data.length, { tier: this.config.storageTier })
cb()
}
})
)
WIKI.logger.info('(STORAGE/AZURE) All content has been pushed to Azure Blob Storage.')
}
}