Error Logging

server/server/database/db_config.js

@@ -18,6 +18,7 @@ module.exports = {
     users: "users",
     project_coaches: "project_coaches",
     sponsors: "sponsors",
+    error_log: "error_log",
   },
   senior_project_proposal_keys: {
     title: "Title",

server/server/database/table_sql/create_all_tables.sql

@@ -8,4 +8,5 @@
 .read table_sql/time_log.sql
 .read table_sql/users.sql
 .read table_sql/sponsor_notes.sql
-.read table_sql/page_html.sql
+.read table_sql/page_html.sql
+.read table_sql/error_log.sql

server/server/database/table_sql/error_log.sql

@@ -0,0 +1,8 @@
+CREATE TABLE error_log (
+    error_log_id       INTEGER PRIMARY KEY AUTOINCREMENT, -- internal id for this row
+    error_datetime     DATETIME DEFAULT CURRENT_TIMESTAMP,
+    status_code        INTEGER, -- error code
+    user_role          TEXT,    -- role of the user that caused the error (if any)
+    url                TEXT,    -- URL that caused the error
+    stack_trace        TEXT    -- stack trace (if any)
+);

server/server/error_handler.js

@@ -1,11 +1,34 @@
 // This is a general purpose error handler for the backend,
 // when the backend encounters errors this handler redirects to an error page where necessary next steps can be taken.
 
+const DBHandler = require("./database/db");
+const DB_CONFIG = require("./database/db_config");
+let db = new DBHandler();
+
 function errorHandler(err, req, res, next) {
   console.error("\n CAUGHT ERROR: ", err, "\n");
   // Send the error to the client so that error can be displayed on error page
+
+  if (!err.statusCode) err.statusCode = 500;
+  if (!err.message) err.message = "Internal Server Error";
+
+  let error_sql = `
+        INSERT INTO ${DB_CONFIG.tableNames.error_log} 
+          (error_datetime, status_code, user_role, url, stack_trace)
+        VALUES (datetime('now'), ?, ?, ?, ?);
+    `;
+
+  let values = [
+    err.statusCode,
+    req.user ? req.user.type : "unknown",
+    req.url,
+    err.stack ? err.stack : "no stack trace",
+  ];
+
+  db.query(error_sql, values);
+
   res.status(err.statusCode).json({
-    error: err.message || "Internal Server Error",
+    error: err.message,
     statusCode: err.statusCode,
     user_role: req.user.type,
     url: req.url,

server/server/routing/db_routes.js

@@ -85,6 +85,41 @@ module.exports = (db) => {
     });
   }
 
+  // get error logs
+  db_router.get("/getAllErrorLogs", [UserAuth.isAdmin], (req, res, next) => {
+    const getErrorLogsQuery = `
+            SELECT * FROM ${DB_CONFIG.tableNames.error_log} ORDER BY error_log_id ASC
+        `;
+    db.query(getErrorLogsQuery)
+      .then((errorLogs) => {
+        res.send(errorLogs);
+      })
+      .catch((err) => {
+        const error = new Error(err);
+        error.statusCode = 500;
+        return next(error);
+      });
+  });
+
+  db_router.delete(
+    "/removeErrorLog/:id",
+    [UserAuth.isAdmin],
+    (req, res, next) => {
+      const deleteErrorLogQuery = `
+            DELETE FROM ${DB_CONFIG.tableNames.error_log} WHERE error_log_id = ?
+        `;
+      db.query(deleteErrorLogQuery, [req.params.id])
+        .then(() => {
+          res.status(200).send();
+        })
+        .catch((err) => {
+          const error = new Error(err);
+          error.statusCode = 500;
+          return next(error);
+        });
+    },
+  );
+
   db_router.get(
     "/selectAllSponsorInfo",
     [UserAuth.isCoachOrAdmin],