Add custom metadata provider controller, update model, move to item metadata utils

server/controllers/CustomMetadataProviderController.js

@@ -0,0 +1,117 @@
+const Logger = require('../Logger')
+const SocketAuthority = require('../SocketAuthority')
+const Database = require('../Database')
+
+const { validateUrl } = require('../utils/index')
+
+//
+// This is a controller for routes that don't have a home yet :(
+//
+class CustomMetadataProviderController {
+  constructor() { }
+
+  /**
+   * GET: /api/custom-metadata-providers
+   *
+   * @param {import('express').Request} req
+   * @param {import('express').Response} res
+   */
+  async getAll(req, res) {
+    const providers = await Database.customMetadataProviderModel.findAll()
+
+    res.json({
+      providers
+    })
+  }
+
+  /**
+   * POST: /api/custom-metadata-providers
+   *
+   * @param {import('express').Request} req
+   * @param {import('express').Response} res
+   */
+  async create(req, res) {
+    const { name, url, mediaType, authHeaderValue } = req.body
+
+    if (!name || !url || !mediaType) {
+      return res.status(400).send('Invalid request body')
+    }
+
+    const validUrl = validateUrl(url)
+    if (!validUrl) {
+      Logger.error(`[CustomMetadataProviderController] Invalid url "${url}"`)
+      return res.status(400).send('Invalid url')
+    }
+
+    const provider = await Database.customMetadataProviderModel.create({
+      name,
+      mediaType,
+      url,
+      authHeaderValue: !authHeaderValue ? null : authHeaderValue,
+    })
+
+    // TODO: Necessary to emit to all clients?
+    SocketAuthority.emitter('custom_metadata_provider_added', provider.toClientJson())
+
+    res.json({
+      provider
+    })
+  }
+
+  /**
+   * DELETE: /api/custom-metadata-providers/:id
+   * 
+   * @param {import('express').Request} req
+   * @param {import('express').Response} res
+   */
+  async delete(req, res) {
+    const slug = `custom-${req.params.id}`
+
+    /** @type {import('../models/CustomMetadataProvider')} */
+    const provider = req.customMetadataProvider
+    const providerClientJson = provider.toClientJson()
+
+    const fallbackProvider = provider.mediaType === 'book' ? 'google' : 'itunes'
+
+    await provider.destroy()
+
+    // Libraries using this provider fallback to default provider
+    await Database.libraryModel.update({
+      provider: fallbackProvider
+    }, {
+      where: {
+        provider: slug
+      }
+    })
+
+    // TODO: Necessary to emit to all clients?
+    SocketAuthority.emitter('custom_metadata_provider_removed', providerClientJson)
+
+    res.sendStatus(200)
+  }
+
+  /**
+   * Middleware that requires admin or up
+   * 
+   * @param {import('express').Request} req 
+   * @param {import('express').Response} res 
+   * @param {import('express').NextFunction} next 
+   */
+  async middleware(req, res, next) {
+    if (!req.user.isAdminOrUp) {
+      Logger.warn(`[CustomMetadataProviderController] Non-admin user "${req.user.username}" attempted access route "${req.path}"`)
+      return res.sendStatus(403)
+    }
+
+    // If id param then add req.customMetadataProvider
+    if (req.params.id) {
+      req.customMetadataProvider = await Database.customMetadataProviderModel.findByPk(req.params.id)
+      if (!req.customMetadataProvider) {
+        return res.sendStatus(404)
+      }
+    }
+
+    next()
+  }
+}
+module.exports = new CustomMetadataProviderController()