Web API's use MPS event and room IDs.

Still need to figure out the plumbing of starting this and the report poller
in integration tests and from index without being started from Draupnir's class.

src/webapis/WebAPIs.ts

@@ -30,6 +30,7 @@ import express from "express";
 import { MatrixClient } from "matrix-bot-sdk";
 import { ReportManager } from "../report/ReportManager";
 import { IConfig } from "../config";
+import { StringEventID, StringRoomID } from "matrix-protection-suite";
 
 
 /**
@@ -74,7 +75,7 @@ export class WebAPIs {
                 response.header("Access-Control-Allow-Origin", "*");
                 response.header("Access-Control-Allow-Headers", "X-Requested-With, Content-Type, Authorization, Date");
                 response.header("Access-Control-Allow-Methods", "POST, OPTIONS");
-                await this.handleReport({ request, response, roomId: request.params.room_id, eventId: request.params.event_id })
+                await this.handleReport({ request, response, roomID: request.params.room_id as StringRoomID, eventID: request.params.event_id as StringEventID })
             });
             console.log(`configuring ${API_PREFIX}/report/:room_id/:event_id... DONE`);
         }
@@ -98,7 +99,7 @@ export class WebAPIs {
      * @param request The request. Its body SHOULD hold an object `{reason?: string}`
      * @param response The response. Used to propagate HTTP success/error.
      */
-    async handleReport({ roomId, eventId, request, response }: { roomId: string, eventId: string, request: express.Request, response: express.Response }) {
+    async handleReport({ roomID, eventID, request, response }: { roomID: StringRoomID, eventID: StringEventID, request: express.Request, response: express.Response }) {
         // To display any kind of useful information, we need
         //
         // 1. The reporter id;
@@ -175,16 +176,16 @@ export class WebAPIs {
                 //
                 // By doing this with the reporterClient, we ensure that this feature of Mjölnir can work
                 // with all Matrix homeservers, rather than just Synapse.
-                event = await reporterClient.getEvent(roomId, eventId);
+                event = await reporterClient.getEvent(roomID, eventID);
             }
 
             let reason = request.body["reason"];
-            await this.reportManager.handleServerAbuseReport({ roomId, reporterId, event, reason });
+            await this.reportManager.handleServerAbuseReport({ roomID, reporterId, event, reason });
 
             // Match the spec behavior of `/report`: return 200 and an empty JSON.
             response.status(200).json({});
         } catch (ex) {
-            console.warn("Error responding to an abuse report", roomId, eventId, ex);
+            console.warn("Error responding to an abuse report", roomID, eventID, ex);
             response.status(503);
         }
     }