From 23736549f90eb86afcca919e99e06abfe66c3105 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ivan=20Bratovi=C4=87?= <ivanbratovic4@gmail.com>
Date: Tue, 2 Nov 2021 12:30:44 +0100
Subject: [PATCH] Implement HTTP basic auth feature

---
 server/model/monitor.js   | 20 ++++++++++++++++++++
 server/server.js          |  4 ++++
 src/pages/EditMonitor.vue | 10 ++++++++++
 3 files changed, 34 insertions(+)

diff --git a/server/model/monitor.js b/server/model/monitor.js
index fc3292317..c80e941e9 100644
--- a/server/model/monitor.js
+++ b/server/model/monitor.js
@@ -58,6 +58,8 @@ class Monitor extends BeanModel {
             method: this.method,
             body: this.body,
             headers: this.headers,
+            basicauth_user: this.basicauth_user,
+            basicauth_pass: this.basicauth_pass,
             hostname: this.hostname,
             port: this.port,
             maxretries: this.maxretries,
@@ -80,6 +82,15 @@ class Monitor extends BeanModel {
         };
     }
 
+    /**
+     * Encode user and password to Base64 encoding
+     * for HTTP "basic" auth, as per RFC-7617
+     * @returns {string}
+     */
+     encodeB64(user, pass) {
+        return btoa(user + ":" + pass);
+     }
+
     /**
      * Parse to boolean
      * @returns {boolean}
@@ -141,6 +152,14 @@ class Monitor extends BeanModel {
                     // Do not do any queries/high loading things before the "bean.ping"
                     let startTime = dayjs().valueOf();
 
+                    // HTTP basic auth
+                    let basicauthHeader = {};
+                    if (this.basicauth_user) {
+                        basicauthHeader = {
+                            "Authorization": "Basic " + this.encodeB64(this.basicauth_user, this.basicauth_pass)
+                        }
+                    }
+
                     const options = {
                         url: this.url,
                         method: (this.method || "get").toLowerCase(),
@@ -150,6 +169,7 @@ class Monitor extends BeanModel {
                             "Accept": "*/*",
                             "User-Agent": "Uptime-Kuma/" + version,
                             ...(this.headers ? JSON.parse(this.headers) : {}),
+                            ...(basicauthHeader)
                         },
                         httpsAgent: new https.Agent({
                             maxCachedSessions: 0,      // Use Custom agent to disable session reuse (https://github.com/nodejs/node/issues/3940)
diff --git a/server/server.js b/server/server.js
index d1fd7ff29..76d456c54 100644
--- a/server/server.js
+++ b/server/server.js
@@ -575,6 +575,8 @@ exports.entryPage = "dashboard";
                 bean.method = monitor.method;
                 bean.body = monitor.body;
                 bean.headers = monitor.headers;
+                bean.basicauth_user = monitor.basicauth_user;
+                bean.basicauth_pass = monitor.basicauth_pass;
                 bean.interval = monitor.interval;
                 bean.retryInterval = monitor.retryInterval;
                 bean.hostname = monitor.hostname;
@@ -1139,6 +1141,8 @@ exports.entryPage = "dashboard";
                                 method: monitorListData[i].method || "GET",
                                 body: monitorListData[i].body,
                                 headers: monitorListData[i].headers,
+                                basicauth_user: monitorListData[i].basicauth_user,
+                                basicauth_pass: monitorListData[i].basicauth_pass,
                                 interval: monitorListData[i].interval,
                                 retryInterval: retryInterval,
                                 hostname: monitorListData[i].hostname,
diff --git a/src/pages/EditMonitor.vue b/src/pages/EditMonitor.vue
index 65c3dad6e..18954968a 100644
--- a/src/pages/EditMonitor.vue
+++ b/src/pages/EditMonitor.vue
@@ -265,6 +265,15 @@
                                     <label for="headers" class="form-label">{{ $t("Headers") }}</label>
                                     <textarea id="headers" v-model="monitor.headers" class="form-control" :placeholder="headersPlaceholder"></textarea>
                                 </div>
+
+                                 <!-- HTTP Basic Auth -->
+                                <h4 class="mt-5 mb-2">{{ $t("HTTP Basic Auth") }}</h4>
+                                <div class="my-3">
+                                    <label for="basicauth" class="form-label">{{ $t("Username") }}</label>
+                                    <input id="basicauth-user" v-model="monitor.basicauth_user" type="text" class="form-control" :placeholder="Username">
+                                    <label for="basicauth" class="form-label">{{ $t("Password") }}</label>
+                                    <input id="basicauth-pass" v-model="monitor.basicauth_pass" type="password" class="form-control" :placeholder="Password">
+                                </div>
                             </template>
                         </div>
                     </div>
@@ -487,6 +496,7 @@ export default {
                 this.monitor.headers = JSON.stringify(JSON.parse(this.monitor.headers), null, 4);
             }
 
+
             if (this.isAdd) {
                 this.$root.add(this.monitor, async (res) => {