Files
genieacs/server/api.js
T

141 lines
4.7 KiB
JavaScript

"use strict";
const Router = require("koa-router");
const db = require("./db");
const apiFunctions = require("./api-functions");
const Filter = require("../common/filter");
const router = new Router();
const RESOURCE_DELETE = 1 << 0;
const RESOURCE_DB = 1 << 1;
const resources = {
devices: 0 | RESOURCE_DELETE,
presets: 0 | RESOURCE_DELETE,
provisions: 0 | RESOURCE_DELETE,
files: 0 | RESOURCE_DELETE,
virtual_parameters: 0 | RESOURCE_DELETE,
faults: 0 | RESOURCE_DELETE,
tasks: 0
};
for (let [resource, flags] of Object.entries(resources)) {
router.head(`/${resource}`, async (ctx, next) => {
let filter, limit;
if (ctx.request.query.filter) filter = new Filter(ctx.request.query.filter);
if (ctx.request.query.limit) limit = +ctx.request.query.limit;
if (!ctx.state.authorizer.hasAccess(resource, 1)) return next();
// Exclude temporary tasks and faults
if (resource === "tasks" || resource === "faults") {
let f = new Filter(["NOT", ["<", "expiry", Date.now() + 60000]]);
filter = f.and(filter);
}
let count;
if (flags & RESOURCE_DB) count = await db.count(resource, filter, limit);
else count = await apiFunctions.count(resource, filter, limit);
ctx.set("X-Total-Count", count);
ctx.body = "";
});
router.get(`/${resource}`, async (ctx, next) => {
let filter, limit, skip, projection;
if (ctx.request.query.filter) filter = new Filter(ctx.request.query.filter);
if (ctx.request.query.limit) limit = +ctx.request.query.limit;
if (ctx.request.query.skip) skip = +ctx.request.query.skip;
if (ctx.request.query.projection) projection = ctx.request.query.projection;
if (!ctx.state.authorizer.hasAccess(resource, 2)) return next();
// Exclude temporary tasks and faults
if (resource === "tasks" || resource === "faults") {
let f = new Filter(["NOT", ["<", "expiry", Date.now() + 60000]]);
filter = f.and(filter);
}
let res;
if (flags & RESOURCE_DB)
res = await db.query(resource, filter, limit, skip);
else
res = await apiFunctions.query(resource, filter, limit, skip, projection);
ctx.body = res;
});
router.head(`/${resource}/:id`, async (ctx, next) => {
let filter = new Filter(`DeviceID.ID = "${ctx.params.id}"`);
if (!ctx.state.authorizer.hasAccess(resource, 2)) return next();
let res;
if (flags & RESOURCE_DB) res = await db.query(resource, filter);
else res = await apiFunctions.query(resource, filter);
if (!res.length) return next();
ctx.body = "";
});
router.get(`/${resource}/:id`, async (ctx, next) => {
let filter = new Filter(`DeviceID.ID = "${ctx.params.id}"`);
if (!ctx.state.authorizer.hasAccess(resource, 2)) return next();
let res;
if (flags & RESOURCE_DB) res = await db.query(resource, filter);
else res = await apiFunctions.query(resource, filter);
if (!res.length) return next();
ctx.body = res[0];
});
// TODO add PUT, PATCH routes
if (flags & RESOURCE_DELETE && !(flags & RESOURCE_DB))
router.delete(`/${resource}/:id`, async (ctx, next) => {
const authorizer = ctx.state.authorizer;
let filter = new Filter(`DeviceID.ID = "${ctx.params.id}"`);
if (!authorizer.hasAccess(resource, 2)) return next();
let res = await apiFunctions.query(resource, filter);
if (!res.length) return next();
const validate = authorizer.getValidator(resource, res[0]);
if (!validate("delete")) return (ctx.status = 403);
await apiFunctions.deleteResource(resource, ctx.params.id);
ctx.body = "";
});
}
router.post("/devices/:id/tasks", async (ctx, next) => {
const authorizer = ctx.state.authorizer;
let filter = new Filter(`DeviceID.ID = "${ctx.params.id}"`);
if (!authorizer.hasAccess("devices", 2)) return next();
let devices = await apiFunctions.query("devices", filter);
if (!devices.length) return next();
const validate = authorizer.getValidator("devices", devices[0]);
for (let t of ctx.request.body)
if (!validate("task", t)) return (ctx.status = 403);
let res = await apiFunctions.postTasks(ctx.params.id, ctx.request.body);
ctx.set("Connection-Request", res.connectionRequest);
ctx.body = res.tasks;
});
router.post("/devices/:id/tags", async (ctx, next) => {
const authorizer = ctx.state.authorizer;
let filter = new Filter(`DeviceID.ID = "${ctx.params.id}"`);
if (!authorizer.hasAccess("devices", 2)) return next();
let res = await apiFunctions.query("devices", filter);
if (!res.length) return next();
const validate = authorizer.getValidator("devices", res[0]);
if (!validate("tags", ctx.request.body)) return (ctx.status = 403);
await apiFunctions.updateTags(ctx.params.id, ctx.request.body);
ctx.body = "";
});
module.exports = router;