display history of topic updates on topic details page

[websub-hub] / src / service.js

diff --git a/src/service.js b/src/service.js
index d493f8affdf83f3585973ad380c3f9a5ab8caa48..df894011dc84f7cad424467b9e62720d4890f9d4 100644 (file)
--- a/src/service.js
+++ b/src/service.js
@@ -52,6 +52,7 @@ class Service extends Dingus {
     this.on(['GET', 'HEAD'], '/admin', this.handlerRedirect.bind(this), `${options.dingus.proxyPrefix}/admin/`);
     this.on(['GET', 'HEAD'], '/admin/', this.handlerGetAdminOverview.bind(this));
     this.on(['GET', 'HEAD'], '/admin/topic/:topicId', this.handlerGetAdminTopicDetails.bind(this));
+    this.on(['GET', 'HEAD'], '/admin/topic/:topicId/history.svg', this.handlerGetHistorySVG.bind(this));
 
     // Private data-editing endpoints
     this.on(['PATCH', 'DELETE'], '/admin/topic/:topicId', this.handlerUpdateTopic.bind(this));
@@ -68,6 +69,24 @@ class Service extends Dingus {
 
   }
 
+  /**
+   * Wrap the Dingus head handler, to remove the response body from the context,
+   * lest it be logged.
+   * @param {http.ClientRequest} req
+   * @param {http.ServerResponse} res
+   * @param {object} ctx
+   */
+  static setHeadHandler(req, res, ctx) {
+    if (req.method === 'HEAD') {
+      Dingus.setHeadHandler(req, res, ctx);
+      const origEnd = res.end.bind(res);
+      res.end = function (data, encoding, ...rest) {
+        const origResult = origEnd(data, encoding, ...rest);
+        delete ctx.responseBody;
+        return origResult;
+      };
+    }
+  }
 
   /**
    * @param {http.ClientRequest} req
@@ -97,7 +116,7 @@ class Service extends Dingus {
     ];
     this.logger.debug(_scope, 'called', { req: common.requestLogData(req), ctx });
 
-    Dingus.setHeadHandler(req, res, ctx);
+    Service.setHeadHandler(req, res, ctx);
 
     this.setResponseType(responseTypes, req, res, ctx);
 
@@ -116,7 +135,7 @@ class Service extends Dingus {
     const _scope = _fileScope('handlerGetHealthcheck');
     this.logger.debug(_scope, 'called', { req: common.requestLogData(req), ctx });
   
-    Dingus.setHeadHandler(req, res, ctx);
+    Service.setHeadHandler(req, res, ctx);
 
     this.setResponseType(this.responseTypes, req, res, ctx);
 
@@ -135,7 +154,7 @@ class Service extends Dingus {
 
     const responseTypes = [...this.responseTypes, Enum.ContentType.ImageSVG];
 
-    Dingus.setHeadHandler(req, res, ctx);
+    Service.setHeadHandler(req, res, ctx);
 
     this.setResponseType(responseTypes, req, res, ctx);
 
@@ -143,6 +162,20 @@ class Service extends Dingus {
   }
 
 
+  async handlerGetHistorySVG(req, res, ctx) {
+    const _scope = _fileScope('handlerGetHist');
+    this.logger.debug(_scope, 'called', { req: common.requestLogData(req), ctx });
+
+    const responseTypes = [Enum.ContentType.ImageSVG];
+
+    Service.setHeadHandler(req, res, ctx);
+
+    this.setResponseType(responseTypes, req, res, ctx);
+
+    await this.manager.getHistorySVG(res, ctx);
+  }
+
+
   /**
    * @param {http.ClientRequest} req
    * @param {http.ServerResponse} res
@@ -152,7 +185,7 @@ class Service extends Dingus {
     const _scope = _fileScope('handlerGetAdminOverview');
     this.logger.debug(_scope, 'called', { req: common.requestLogData(req), ctx });
 
-    Dingus.setHeadHandler(req, res, ctx);
+    Service.setHeadHandler(req, res, ctx);
 
     this.setResponseType(this.responseTypes, req, res, ctx);
 
@@ -171,7 +204,7 @@ class Service extends Dingus {
     const _scope = _fileScope('handlerGetAdminTopicDetails');
     this.logger.debug(_scope, 'called', { req: common.requestLogData(req), ctx });
 
-    Dingus.setHeadHandler(req, res, ctx);
+    Service.setHeadHandler(req, res, ctx);
 
     this.setResponseType(this.responseTypes, req, res, ctx);
 
@@ -264,7 +297,7 @@ class Service extends Dingus {
     const _scope = _fileScope('handlerGetAdminLogin');
     this.logger.debug(_scope, 'called', { req: common.requestLogData(req), ctx });
 
-    Dingus.setHeadHandler(req, res, ctx);
+    Service.setHeadHandler(req, res, ctx);
 
     this.setResponseType(this.responseTypes, req, res, ctx);