jshbrmn/braid
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

pass along reservation_no from Archimedes

Browse Source
This commit is contained in:
Maciek Nowacki 2021-03-03 13:59:14 -07:00
parent 60b5f21f76
commit 66b8ef945f
1 changed files with 12 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
src/xhrListener.ts
View File

@ -12,7 +12,8 @@ const HTTP_PORT = app.httpPort;
import { Server, IncomingMessage, ServerResponse } from 'http'
interface ArchimedesMessage {
examId: string;
examId: string,
reservation_no: string
}
class XhrListener {
@ -28,15 +29,18 @@ class XhrListener {
logger.debugLog.info("XhrListener running");
}
public relayEvent(event: string, channel: string): boolean {
logger.debugLog.info(`XhrListener:relayEvent(event: ${event}, channel: ${channel})`);
public relayEvent(event: string, archMsg: ArchimedesMessage): boolean {
logger.debugLog.info(`XhrListener:relayEvent(event: ${event}, channel: ${archMsg.examId})`);
for (let c of this.#cm.channels) {
if (channel === c.id) {
if (archMsg.examId === c.id) {
let dmCount: number = 0;
for (let client of c.clients) {
let nonce: string = crypto.randomBytes(4).toString("hex");
// TODO: verify the nonce against the received reply, which we currently ignore
client.directMessage(JSON.stringify({ message_type: "broadcast", message: { event_type: event, seq_id: nonce } }));
client.directMessage(JSON.stringify({
message_type: "broadcast",
message: { event_type: event, seq_id: nonce, reservation_no: archMsg.reservation_no }
}));
dmCount++;
}
// dmCount of 1 would be normal. more than 1 is odd, but not necessarily bad. 0 means Exam UI has gone away somehow.
@ -63,13 +67,13 @@ class XhrListener {
let returnVal: [number, string] = [-1, ""];
let authorized: boolean = request.headers['x-proctoru-signature'] === AUTH_TOKEN;
// body of POST is JSON: '{"examId":"proctor_u_id"}'
// body of POST is JSON: '{"examId":"proctor_u_id", "reservation_no":"primary_key_from_archimedes"}'
switch (true) {
// match /event/pause*
case /^\/event\/pause([/]+.*)*$/.test(endpoint):
if (authorized) {
let amsg: ArchimedesMessage = JSON.parse(Buffer.concat(body).toString());
if (this.relayEvent("pauseExam", amsg.examId)) {
if (this.relayEvent("pauseExam", amsg)) {
returnVal = [200, "pause event was successfully relayed"];
} else {
logger.errorLog.info(`XhrListener: could not relay pause event "${amsg}" to Exam UI; body: "${body}"`);
@ -83,7 +87,7 @@ class XhrListener {
case /^\/event\/resume([/]+.*)*$/.test(endpoint):
if (authorized) {
let amsg: ArchimedesMessage = JSON.parse(Buffer.concat(body).toString());
if (this.relayEvent("resumeExam", amsg.examId)) {
if (this.relayEvent("resumeExam", amsg)) {
returnVal = [200, "resume event was successfully relayed"];
} else {
logger.errorLog.info(`XhrListener: could not relay resume event "${amsg}" to Exam UI; body: "${body}"`);