Fix #3868 postgres monitor could possibly crash Uptime Kuma (#3880)

* Bump pg

* Handle uncaughtException

* Fix parsing issue of postgres connection and fix the query example

package-lock.json

@@ -57,8 +57,8 @@
                 "notp": "~2.0.3",
                 "openid-client": "^5.4.2",
                 "password-hash": "~1.2.2",
-                "pg": "~8.8.0",
-                "pg-connection-string": "~2.5.0",
+                "pg": "~8.11.3",
+                "pg-connection-string": "~2.6.2",
                 "playwright-core": "~1.35.1",
                 "prom-client": "~13.2.0",
                 "prometheus-api-metrics": "~3.2.1",
@@ -13392,6 +13392,11 @@
                 "node": "^12.20.0 || >=14"
             }
         },
+        "node_modules/knex/node_modules/pg-connection-string": {
+            "version": "2.5.0",
+            "resolved": "https://registry.npmjs.org/pg-connection-string/-/pg-connection-string-2.5.0.tgz",
+            "integrity": "sha512-r5o/V/ORTA6TmUnyWZR9nCj1klXCO2CEKNRlVuJptZe85QuhFayC7WeMic7ndayT5IRIR0S0xFxFi2ousartlQ=="
+        },
         "node_modules/knex/node_modules/resolve-from": {
             "version": "5.0.0",
             "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-5.0.0.tgz",
@@ -15221,21 +15226,24 @@
             "dev": true
         },
         "node_modules/pg": {
-            "version": "8.8.0",
-            "resolved": "https://registry.npmjs.org/pg/-/pg-8.8.0.tgz",
-            "integrity": "sha512-UXYN0ziKj+AeNNP7VDMwrehpACThH7LUl/p8TDFpEUuSejCUIwGSfxpHsPvtM6/WXFy6SU4E5RG4IJV/TZAGjw==",
+            "version": "8.11.3",
+            "resolved": "https://registry.npmjs.org/pg/-/pg-8.11.3.tgz",
+            "integrity": "sha512-+9iuvG8QfaaUrrph+kpF24cXkH1YOOUeArRNYIxq1viYHZagBxrTno7cecY1Fa44tJeZvaoG+Djpkc3JwehN5g==",
             "dependencies": {
                 "buffer-writer": "2.0.0",
                 "packet-reader": "1.0.0",
-                "pg-connection-string": "^2.5.0",
-                "pg-pool": "^3.5.2",
-                "pg-protocol": "^1.5.0",
+                "pg-connection-string": "^2.6.2",
+                "pg-pool": "^3.6.1",
+                "pg-protocol": "^1.6.0",
                 "pg-types": "^2.1.0",
                 "pgpass": "1.x"
             },
             "engines": {
                 "node": ">= 8.0.0"
             },
+            "optionalDependencies": {
+                "pg-cloudflare": "^1.1.1"
+            },
             "peerDependencies": {
                 "pg-native": ">=3.0.1"
             },
@@ -15245,10 +15253,16 @@
                 }
             }
         },
+        "node_modules/pg-cloudflare": {
+            "version": "1.1.1",
+            "resolved": "https://registry.npmjs.org/pg-cloudflare/-/pg-cloudflare-1.1.1.tgz",
+            "integrity": "sha512-xWPagP/4B6BgFO+EKz3JONXv3YDgvkbVrGw2mTo3D6tVDQRh1e7cqVGvyR3BE+eQgAvx1XhW/iEASj4/jCWl3Q==",
+            "optional": true
+        },
         "node_modules/pg-connection-string": {
-            "version": "2.5.0",
-            "resolved": "https://registry.npmjs.org/pg-connection-string/-/pg-connection-string-2.5.0.tgz",
-            "integrity": "sha512-r5o/V/ORTA6TmUnyWZR9nCj1klXCO2CEKNRlVuJptZe85QuhFayC7WeMic7ndayT5IRIR0S0xFxFi2ousartlQ=="
+            "version": "2.6.2",
+            "resolved": "https://registry.npmjs.org/pg-connection-string/-/pg-connection-string-2.6.2.tgz",
+            "integrity": "sha512-ch6OwaeaPYcova4kKZ15sbJ2hKb/VP48ZD2gE7i1J+L4MspCtBMAx8nMgz7bksc7IojCIIWuEhHibSMFH8m8oA=="
         },
         "node_modules/pg-int8": {
             "version": "1.0.1",

package.json

@@ -57,6 +57,7 @@
         "simple-dns-server": "node extra/simple-dns-server.js",
         "simple-mqtt-server": "node extra/simple-mqtt-server.js",
         "simple-mongo": "docker run --rm -p 27017:27017 mongo",
+        "simple-postgres": "docker run --rm -p 5432:5432 -e POSTGRES_PASSWORD=postgres postgres",
         "update-language-files": "cd extra/update-language-files && node index.js && cross-env-shell eslint ../../src/languages/$npm_config_language.js --fix",
         "ncu-patch": "npm-check-updates -u -t patch",
         "release-final": "node ./extra/test-docker.js && node extra/update-version.js && npm run build-docker && node ./extra/press-any-key.js && npm run upload-artifacts && node ./extra/update-wiki-version.js",
@@ -121,8 +122,8 @@
         "notp": "~2.0.3",
         "openid-client": "^5.4.2",
         "password-hash": "~1.2.2",
-        "pg": "~8.8.0",
-        "pg-connection-string": "~2.5.0",
+        "pg": "~8.11.3",
+        "pg-connection-string": "~2.6.2",
         "playwright-core": "~1.35.1",
         "prom-client": "~13.2.0",
         "prometheus-api-metrics": "~3.2.1",

server/server.js

@@ -1887,8 +1887,10 @@ gracefulShutdown(server.httpServer, {
 });
 
 // Catch unexpected errors here
-process.addListener("unhandledRejection", (error, promise) => {
+let unexpectedErrorHandler = (error, promise) => {
     console.trace(error);
     UptimeKumaServer.errorLog(error, false);
     console.error("If you keep encountering errors, please report to https://github.com/louislam/uptime-kuma/issues");
-});
+};
+process.addListener("unhandledRejection", unexpectedErrorHandler);
+process.addListener("uncaughtException", unexpectedErrorHandler);

server/util-server.js

@@ -395,6 +395,9 @@ exports.mssqlQuery = async function (connectionString, query) {
     try {
         pool = new mssql.ConnectionPool(connectionString);
         await pool.connect();
+        if (!query) {
+            query = "SELECT 1";
+        }
         await pool.request().query(query);
         pool.close();
     } catch (e) {
@@ -415,12 +418,22 @@ exports.postgresQuery = function (connectionString, query) {
     return new Promise((resolve, reject) => {
         const config = postgresConParse(connectionString);
 
+        // Fix #3868, which true/false is not parsed to boolean
+        if (typeof config.ssl === "string") {
+            config.ssl = config.ssl === "true";
+        }
+
         if (config.password === "") {
             // See https://github.com/brianc/node-postgres/issues/1927
-            return reject(new Error("Password is undefined."));
+            reject(new Error("Password is undefined."));
+            return;
         }
+        const client = new Client(config);
 
-        const client = new Client({ connectionString });
+        client.on("error", (error) => {
+            log.debug("postgres", "Error caught in the error event handler.");
+            reject(error);
+        });
 
         client.connect((err) => {
             if (err) {

src/pages/EditMonitor.vue

@@ -374,7 +374,7 @@
                             <template v-if="monitor.type === 'sqlserver' || monitor.type === 'postgres' || monitor.type === 'mysql'">
                                 <div class="my-3">
                                     <label for="sqlQuery" class="form-label">{{ $t("Query") }}</label>
-                                    <textarea id="sqlQuery" v-model="monitor.databaseQuery" class="form-control" :placeholder="$t('Example:', [ 'select getdate()' ])" required></textarea>
+                                    <textarea id="sqlQuery" v-model="monitor.databaseQuery" class="form-control" :placeholder="$t('Example:', [ 'SELECT 1' ])"></textarea>
                                 </div>
                             </template>