clean up indentation (blame/praise VS Code for this 😜)
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@ -26,26 +26,26 @@ class XhrListener {
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logger.debugLog.info("XhrListener running");
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}
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public relayEvent(event: string, channel: string):boolean {
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public relayEvent(event: string, channel: string): boolean {
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logger.debugLog.info(`XhrListener:relayEvent(event: ${event}, channel: ${channel})`);
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for (let c of this.#cm.channels) {
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if (channel === c.id) {
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let dmCount:number = 0;
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for (let client of c.clients) {
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let nonce:string = crypto.randomBytes(4).toString("hex");
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// TODO: verify the nonce against the received reply, which we currently ignore
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client.directMessage(JSON.stringify({message_type:"broadcast", message:{event_type:event, seq_id:nonce}}));
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dmCount++;
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}
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// dmCount of 1 would be normal. more than 1 is odd, but not necessarily bad. 0 means Exam UI has gone away somehow.
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return dmCount > 0;
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let dmCount: number = 0;
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for (let client of c.clients) {
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let nonce: string = crypto.randomBytes(4).toString("hex");
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// TODO: verify the nonce against the received reply, which we currently ignore
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client.directMessage(JSON.stringify({ message_type: "broadcast", message: { event_type: event, seq_id: nonce } }));
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dmCount++;
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}
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// dmCount of 1 would be normal. more than 1 is odd, but not necessarily bad. 0 means Exam UI has gone away somehow.
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return dmCount > 0;
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}
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}
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// did not match a channel; examId isn't valid for some reason
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return false;
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}
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public onRequestEnded(body: Uint8Array[], request: IncomingMessage, response: ServerResponse):void {
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public onRequestEnded(body: Uint8Array[], request: IncomingMessage, response: ServerResponse): void {
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logger.debugLog.info("XhrListener:onRequestEnded()");
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if (request.method === 'OPTIONS') {
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logger.debugLog.info("handling CORS preflight");
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@ -59,56 +59,56 @@ class XhrListener {
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logger.debugLog.info("parsing Archimedes event: " + body);
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let endpoint = url.parse(request.url).pathname
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let returnVal: [number, string] = [-1, ""];
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let authorized:boolean = request.headers['x-proctoru-signature'] === AUTH_TOKEN;
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let authorized: boolean = request.headers['x-proctoru-signature'] === AUTH_TOKEN;
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// body of POST is JSON: '{"examId":"proctor_u_id"}'
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switch (true) {
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// match /event/pause*
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// match /event/pause*
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case /^\/event\/pause([/]+.*)*$/.test(endpoint):
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if (authorized) {
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let amsg:ArchimedesMessage = JSON.parse(Buffer.concat(body).toString());
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if (this.relayEvent("pauseExam", amsg.examId)) {
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returnVal = [200, "pause event was successfully relayed"];
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if (authorized) {
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let amsg: ArchimedesMessage = JSON.parse(Buffer.concat(body).toString());
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if (this.relayEvent("pauseExam", amsg.examId)) {
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returnVal = [200, "pause event was successfully relayed"];
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} else {
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logger.errorLog.info(`XhrListener: could not relay pause event "${amsg}" to Exam UI; body: "${body}"`);
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returnVal = [400, "error while relaying pause event"];
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}
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logger.errorLog.info(`XhrListener: could not relay pause event "${amsg}" to Exam UI; body: "${body}"`);
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returnVal = [400, "error while relaying pause event"];
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}
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}
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break;
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break;
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// match /event/resume*
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// match /event/resume*
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case /^\/event\/resume([/]+.*)*$/.test(endpoint):
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if (authorized) {
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let amsg:ArchimedesMessage = JSON.parse(Buffer.concat(body).toString());
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if (this.relayEvent("resumeExam", amsg.examId)) {
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returnVal = [200, "resume event was successfully relayed"];
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if (authorized) {
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let amsg: ArchimedesMessage = JSON.parse(Buffer.concat(body).toString());
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if (this.relayEvent("resumeExam", amsg.examId)) {
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returnVal = [200, "resume event was successfully relayed"];
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} else {
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logger.errorLog.info(`XhrListener: could not relay resume event "${amsg}" to Exam UI; body: "${body}"`);
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returnVal = [400, "error while relaying resume event"];
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}
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logger.errorLog.info(`XhrListener: could not relay resume event "${amsg}" to Exam UI; body: "${body}"`);
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returnVal = [400, "error while relaying resume event"];
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}
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}
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break;
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break;
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default:
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logger.errorLog.info(`XhrListener: bad event or other request; body: "${body}"`);
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returnVal = [400, "Bad request"];
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break;
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default:
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logger.errorLog.info(`XhrListener: bad event or other request; body: "${body}"`);
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returnVal = [400, "Bad request"];
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break;
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};
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if (-1 == returnVal[0]) {
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response.writeHead(authorized ? 400 : 401);
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response.end();
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response.writeHead(authorized ? 400 : 401);
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response.end();
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} else {
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response.writeHead(returnVal[0], {'Content-Type': 'application/json'});
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response.writeHead(returnVal[0], { 'Content-Type': 'application/json' });
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response.end(JSON.stringify(returnVal[1]));
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}
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}
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}
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private onRequest(request: IncomingMessage, response: ServerResponse):void {
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private onRequest(request: IncomingMessage, response: ServerResponse): void {
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logger.debugLog.info("XhrListener:onRequest()");
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let body:Uint8Array[] = [];
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let body: Uint8Array[] = [];
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request.on('data', post_block => body.push(post_block));
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request.on('end', () => {
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