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111 lines
3.3 KiB
111 lines
3.3 KiB
const { Middleware } = require('libflitter')
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class DataInjectionMiddleware extends Middleware {
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static get services() {
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return [...super.services, 'models']
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}
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// manage, update, view
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async test(req, res, next, { access_level = 'view' }) {
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if ( !req.user ) {
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return res.status(401)
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.message('Unauthenticated session.')
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.api()
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}
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if ( !req.form ) req.form = {}
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// Try to load in the page
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if ( !req.params.PageId ) return next()
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const Page = this.models.get('api:Page')
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const page = await Page.findOne({ UUID: req.params.PageId })
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if ( !page ) {
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return res.status(404)
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.message('Invalid page ID.')
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.api()
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}
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// Make sure the user has access to the given page
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if ( !(await page.is_accessible_by(req.user, access_level)) ) {
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return res.status(401).api()
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}
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req.form.page = page
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// Try to load in the node
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if ( req.params.NodeId ) {
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const Node = this.models.get('api:Node')
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const node = await Node.findOne({ UUID: req.params.NodeId })
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if ( !node || !page.NodeIds.includes(node.UUID) ) {
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return res.status(404)
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.message('Invalid node ID.')
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.api()
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}
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req.form.node = node
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}
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// Try to load in the code snippets
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if ( req.params.CodiumId ) {
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const Codium = this.models.get('api:Codium')
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const codium = await Codium.findOne({
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UUID: req.params.CodiumId,
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Active: true,
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PageId: req.params.PageId,
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...(req.form.node ? {NodeId: req.form.node.UUID} : {}),
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})
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if ( !codium ) {
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return res.status(404)
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.message('Invalid code snippet ID.')
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.api()
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}
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req.form.codium = codium
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}
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// Try to load in the database
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if ( req.params.DatabaseId ) {
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const Database = this.models.get('api:db:Database')
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const database = await Database.findOne({
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UUID: req.params.DatabaseId,
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Active: true,
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PageId: req.params.PageId,
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...(req.form.node ? {NodeId: req.form.node.UUID} : {}),
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})
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if ( !database ) {
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return res.status(404)
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.message('Invalid database ID.')
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.api()
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}
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req.form.database = database
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}
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// Try to load in the file group
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if ( req.params.FilesId ) {
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const FileGroup = this.models.get('api:FileGroup')
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const file_group = await FileGroup.findOne({
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UUID: req.params.FilesId,
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PageId: req.params.PageId,
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...(req.form.node ? {NodeId: req.form.node.UUID} : {}),
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})
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if ( !file_group ) {
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return res.status(404)
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.message('Invalid file group ID.')
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.api()
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}
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req.form.file_group = file_group
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}
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return next()
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}
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}
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module.exports = exports = DataInjectionMiddleware
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