feat: upstream health check #166

api/upstream/router.go

@@ -0,0 +1,7 @@
+package upstream
+
+import "github.com/gin-gonic/gin"
+
+func InitRouter(r *gin.RouterGroup) {
+	r.GET("/availability_test", AvailabilityTest)
+}

api/upstream/upstream.go

@@ -0,0 +1,45 @@
+package upstream
+
+import (
+    "github.com/0xJacky/Nginx-UI/internal/logger"
+    "github.com/0xJacky/Nginx-UI/internal/upstream"
+    "github.com/gin-gonic/gin"
+    "github.com/gorilla/websocket"
+    "net/http"
+    "time"
+)
+
+func AvailabilityTest(c *gin.Context) {
+    var upGrader = websocket.Upgrader{
+        CheckOrigin: func(r *http.Request) bool {
+            return true
+        },
+    }
+    // upgrade http to websocket
+    ws, err := upGrader.Upgrade(c.Writer, c.Request, nil)
+    if err != nil {
+        logger.Error(err)
+        return
+    }
+
+    defer ws.Close()
+
+    var body []string
+
+    err = ws.ReadJSON(&body)
+
+    if err != nil {
+        logger.Error(err)
+        return
+    }
+    
+    for {
+        err = ws.WriteJSON(upstream.AvailabilityTest(body))
+
+        if err != nil {
+            logger.Error(err)
+        }
+
+        time.Sleep(10 * time.Second)
+    }
+}

app/package.json

@@ -34,7 +34,7 @@
     "vue-router": "^4.2.5",
     "vue3-ace-editor": "2.2.4",
     "vue3-apexcharts": "^1.4.4",
-    "vue3-gettext": "3.0.0-beta.2",
+    "vue3-gettext": "^3.0.0-beta.3",
     "vuedraggable": "^4.1.0",
     "xterm": "^5.3.0",
     "xterm-addon-attach": "^0.9.0",
@@ -67,8 +67,7 @@
     "unplugin-auto-import": "^0.17.1",
     "unplugin-vue-components": "^0.25.2",
     "unplugin-vue-define-options": "^1.4.0",
-    "vite": "^5.0.8",
-    "vite-plugin-html": "^3.2.0",
+    "vite": "^5.0.9",
     "vite-svg-loader": "^5.1.0",
     "vue-tsc": "^1.8.22"
   }

app/pnpm-lock.yaml

@@ -75,8 +75,8 @@ dependencies:
     specifier: ^1.4.4
     version: 1.4.4(apexcharts@3.44.0)(vue@3.3.11)
   vue3-gettext:
-    specifier: 3.0.0-beta.2
-    version: 3.0.0-beta.2(@vue/compiler-sfc@3.3.10)(vue@3.3.11)
+    specifier: ^3.0.0-beta.3
+    version: 3.0.0-beta.3(@vue/compiler-sfc@3.3.10)(vue@3.3.11)
   vuedraggable:
     specifier: ^4.1.0
     version: 4.1.0(vue@3.3.11)
@@ -111,10 +111,10 @@ devDependencies:
     version: 6.13.1(eslint@8.55.0)(typescript@5.3.2)
   '@vitejs/plugin-vue':
     specifier: ^4.5.0
-    version: 4.5.1(vite@5.0.8)(vue@3.3.11)
+    version: 4.5.1(vite@5.0.9)(vue@3.3.11)
   '@vitejs/plugin-vue-jsx':
     specifier: ^3.1.0
-    version: 3.1.0(vite@5.0.8)(vue@3.3.11)
+    version: 3.1.0(vite@5.0.9)(vue@3.3.11)
   '@vue/compiler-sfc':
     specifier: ^3.3.10
     version: 3.3.10
@@ -170,11 +170,8 @@ devDependencies:
     specifier: ^1.4.0
     version: 1.4.0(vue@3.3.11)
   vite:
-    specifier: ^5.0.8
-    version: 5.0.8(@types/node@20.10.2)(less@4.2.0)
-  vite-plugin-html:
-    specifier: ^3.2.0
-    version: 3.2.0(vite@5.0.8)
+    specifier: ^5.0.9
+    version: 5.0.9(@types/node@20.10.2)(less@4.2.0)
   vite-svg-loader:
     specifier: ^5.1.0
     version: 5.1.0(vue@3.3.11)
@@ -875,13 +872,6 @@ packages:
     engines: {node: '>=6.0.0'}
     dev: true
 
-  /@jridgewell/source-map@0.3.5:
-    resolution: {integrity: sha512-UTYAUj/wviwdsMfzoSJspJxbkH5o1snzwX0//0ENX1u/55kkZZkcTZP6u9bwKGkv+dkk9at4m1Cpt0uY80kcpQ==}
-    dependencies:
-      '@jridgewell/gen-mapping': 0.3.3
-      '@jridgewell/trace-mapping': 0.3.20
-    dev: true
-
   /@jridgewell/sourcemap-codec@1.4.15:
     resolution: {integrity: sha512-eF2rxCRulEKXHTRiDrDy6erMYWqNw4LPdQ8UQA4huuxaQsVeRPFl2oM8oDGxMFhJUWZf9McpLtJasDDZb/Bpeg==}
 
@@ -920,14 +910,6 @@ packages:
     dev: false
     optional: true
 
-  /@rollup/pluginutils@4.2.1:
-    resolution: {integrity: sha512-iKnFXr7NkdZAIHiIWE+BX5ULi/ucVFYWD6TbAV+rZctiRTY2PL6tsIKhoIOaoskiWAkgu+VsbXgUVDNLHf+InQ==}
-    engines: {node: '>= 8.0.0'}
-    dependencies:
-      estree-walker: 2.0.2
-      picomatch: 2.3.1
-    dev: true
-
   /@rollup/pluginutils@5.1.0:
     resolution: {integrity: sha512-XTIWOPPcpvyKI6L1NHo0lFlCyznUEyPmPY1mc3KpPVDYulHSTvyeLNVW00QTLIAFNhR3kYnJTQHeGqU4M3n09g==}
     engines: {node: '>=14.0.0'}
@@ -1332,7 +1314,7 @@ packages:
     resolution: {integrity: sha512-zuVdFrMJiuCDQUMCzQaD6KL28MjnqqN8XnAqiEq9PNm/hCPTSGfrXCOfwj1ow4LFb/tNymJPwsNbVePc1xFqrQ==}
     dev: true
 
-  /@vitejs/plugin-vue-jsx@3.1.0(vite@5.0.8)(vue@3.3.11):
+  /@vitejs/plugin-vue-jsx@3.1.0(vite@5.0.9)(vue@3.3.11):
     resolution: {integrity: sha512-w9M6F3LSEU5kszVb9An2/MmXNxocAnUb3WhRr8bHlimhDrXNt6n6D2nJQR3UXpGlZHh/EsgouOHCsM8V3Ln+WA==}
     engines: {node: ^14.18.0 || >=16.0.0}
     peerDependencies:
@@ -1342,20 +1324,20 @@ packages:
       '@babel/core': 7.23.5
       '@babel/plugin-transform-typescript': 7.23.5(@babel/core@7.23.5)
       '@vue/babel-plugin-jsx': 1.1.5(@babel/core@7.23.5)
-      vite: 5.0.8(@types/node@20.10.2)(less@4.2.0)
+      vite: 5.0.9(@types/node@20.10.2)(less@4.2.0)
       vue: 3.3.11(typescript@5.3.2)
     transitivePeerDependencies:
       - supports-color
     dev: true
 
-  /@vitejs/plugin-vue@4.5.1(vite@5.0.8)(vue@3.3.11):
+  /@vitejs/plugin-vue@4.5.1(vite@5.0.9)(vue@3.3.11):
     resolution: {integrity: sha512-DaUzYFr+2UGDG7VSSdShKa9sIWYBa1LL8KC0MNOf2H5LjcTPjob0x8LbkqXWmAtbANJCkpiQTj66UVcQkN2s3g==}
     engines: {node: ^14.18.0 || >=16.0.0}
     peerDependencies:
       vite: ^4.0.0 || ^5.0.0
       vue: ^3.2.25
     dependencies:
-      vite: 5.0.8(@types/node@20.10.2)(less@4.2.0)
+      vite: 5.0.9(@types/node@20.10.2)(less@4.2.0)
       vue: 3.3.11(typescript@5.3.2)
     dev: true
 
@@ -1852,10 +1834,6 @@ packages:
     resolution: {integrity: sha512-7HhHjtERjqlNbZtqNqy2rckN/SpOOlmDliet+lP7k+eKZEjPk3DgyeU9lIXLdeLz0uBbbVp+9Qdow9wJWgwwfg==}
     dev: false
 
-  /async@3.2.5:
-    resolution: {integrity: sha512-baNZyqaaLhyLVKm/DlvdW051MSgO6b8eVfIezl9E5PqWxFgzLm/wQntEW4zOytVburDEr0JlALEpdOFwvErLsg==}
-    dev: true
-
   /asynckit@0.4.0:
     resolution: {integrity: sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==}
     dev: false
@@ -1932,10 +1910,6 @@ packages:
       update-browserslist-db: 1.0.13(browserslist@4.22.1)
     dev: true
 
-  /buffer-from@1.1.2:
-    resolution: {integrity: sha512-E+XQCRwSbaaiChtv6k6Dwgc+bx+Bs6vuKJHHl5kox/BaKbhiXzqQOwK4cO22yElGp2OCmjwVhT3HmxgyPGnJfQ==}
-    dev: true
-
   /builtin-modules@3.3.0:
     resolution: {integrity: sha512-zhaCDicdLuWN5UbN5IMnFqNMhNfo919sH85y2/ea+5Yg9TsTkeZxpL+JLbp6cgYFS4sRLp3YV4S6yDuqVWHYOw==}
     engines: {node: '>=6'}
@@ -1959,13 +1933,6 @@ packages:
     resolution: {integrity: sha512-P8BjAsXvZS+VIDUI11hHCQEv74YT67YUi5JJFNWIqL235sBmjX4+qx9Muvls5ivyNENctx46xQLQ3aTuE7ssaQ==}
     engines: {node: '>=6'}
 
-  /camel-case@4.1.2:
-    resolution: {integrity: sha512-gxGWBrTT1JuMx6R+o5PTXMmUnhnVzLQ9SNutD4YqKtI6ap897t3tKECYla6gCWEkplXnlNybEkZg9GEGxKFCgw==}
-    dependencies:
-      pascal-case: 3.1.2
-      tslib: 2.6.2
-    dev: true
-
   /camelcase-css@2.0.1:
     resolution: {integrity: sha512-QOSvevhslijgYwRx6Rv7zKdMF8lbRmx+uQGx2+vDc+KI/eBnsy9kit5aj23AgGu3pa4t9AgwbnXWqS+iOY+2aA==}
     engines: {node: '>= 6'}
@@ -2027,13 +1994,6 @@ packages:
     engines: {node: '>=8'}
     dev: true
 
-  /clean-css@5.3.3:
-    resolution: {integrity: sha512-D5J+kHaVb/wKSFcyyV75uCn8fiY4sV38XJoe4CUyGQ+mOU/fMVYUdH1hJC+CJQ5uY3EnW27SbJYS4X8BiLrAFg==}
-    engines: {node: '>= 10.0'}
-    dependencies:
-      source-map: 0.6.1
-    dev: true
-
   /clean-regexp@1.0.0:
     resolution: {integrity: sha512-GfisEZEJvzKrmGWkvfhgzcz/BllN1USeqD2V6tg14OAOgaCD2Z/PUEuxnAZ/nPvmaHRG7a8y77p1T/IRQ4D1Hw==}
     engines: {node: '>=4'}
@@ -2058,10 +2018,6 @@ packages:
   /color-name@1.1.4:
     resolution: {integrity: sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==}
 
-  /colorette@2.0.20:
-    resolution: {integrity: sha512-IfEDxwoWIjkeXL1eXcDiow4UbKjhLdq6/EuSVR9GMN7KVH3r9gQ83e73hsz1Nd1T3ijd5xv1wcWRYO+D6kCI2w==}
-    dev: true
-
   /combined-stream@1.0.8:
     resolution: {integrity: sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==}
     engines: {node: '>= 0.8'}
@@ -2079,10 +2035,6 @@ packages:
       typical: 4.0.0
     dev: false
 
-  /commander@2.20.3:
-    resolution: {integrity: sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==}
-    dev: true
-
   /commander@4.1.1:
     resolution: {integrity: sha512-NOKm8xhkzAjzFx8B2v5OAHT+u5pRQc2UCa2Vq9jYL/31o2wi9mxBA7LIFs3sV5VSC49z6pEhfbMULvShKj26WA==}
     engines: {node: '>= 6'}
@@ -2093,11 +2045,6 @@ packages:
     engines: {node: '>= 10'}
     dev: true
 
-  /commander@8.3.0:
-    resolution: {integrity: sha512-OkTL9umf+He2DZkUq8f8J9of7yL6RJKI24dVITBmNfZBmri9zYZQrKkuXiKhyfPSu8tUhnVBB1iKXevvnlR4Ww==}
-    engines: {node: '>= 12'}
-    dev: true
-
   /comment-parser@1.4.1:
     resolution: {integrity: sha512-buhp5kePrmda3vhc5B9t7pUQXAb2Tnd0qgpkIhPhkHXxJpiPJ11H0ZEU0oBpJ2QztSbzG/ZxMj/CHsYJqRHmyg==}
     engines: {node: '>= 12.0.0'}
@@ -2114,15 +2061,6 @@ packages:
   /concat-map@0.0.1:
     resolution: {integrity: sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==}
 
-  /connect-history-api-fallback@1.6.0:
-    resolution: {integrity: sha512-e54B99q/OUoH64zYYRf3HBP5z24G38h5D3qXu23JGRoigpX5Ss4r9ZnDk3g0Z8uQC2x2lPaJ+UlWBc1ZWBWdLg==}
-    engines: {node: '>=0.8'}
-    dev: true
-
-  /consola@2.15.3:
-    resolution: {integrity: sha512-9vAdYbHj6x2fLKC4+oPH0kFzY/orMZyG2Aj+kNylHxKGJ/Ed4dpNyAQYwJOdqO4zdM7XpVHmyejQDcQHrnuXbw==}
-    dev: true
-
   /convert-source-map@2.0.0:
     resolution: {integrity: sha512-Kvp459HrV2FEJ1CAsi1Ku+MY3kasH19TFykTz2xWmMeq6bk2NU3XXvfJ+Q61m0xktWwt+1HSYf3JZsTms3aRJg==}
     dev: true
@@ -2156,16 +2094,6 @@ packages:
       shebang-command: 2.0.0
       which: 2.0.2
 
-  /css-select@4.3.0:
-    resolution: {integrity: sha512-wPpOYtnsVontu2mODhA19JrqWxNsfdatRKd64kmpRbQgh1KtItko5sTnEpPdpSaJszTOhEMlF/RPz28qj4HqhQ==}
-    dependencies:
-      boolbase: 1.0.0
-      css-what: 6.1.0
-      domhandler: 4.3.1
-      domutils: 2.8.0
-      nth-check: 2.1.1
-    dev: true
-
   /css-select@5.1.0:
     resolution: {integrity: sha512-nwoRF1rvRRnnCqqY7updORDsuqKzqYJ28+oSMaJMMgOauh3fvwHqMS7EZpIPqK8GL+g9mKxF1vP/ZjSeNjEVHg==}
     dependencies:
@@ -2311,14 +2239,6 @@ packages:
     resolution: {integrity: sha512-bvVTQe1lfaUr1oFzZX80ce9KLDlZ3iU+XGNE/bz9HnGdklTieqsbmsLHe+rT2XWqopvL0PckkYqN7ksmm5pe3w==}
     dev: false
 
-  /dom-serializer@1.4.1:
-    resolution: {integrity: sha512-VHwB3KfrcOOkelEG2ZOfxqLZdfkil8PtJi4P8N2MMXucZq2yLp75ClViUlOVwyoHEDjYU433Aq+5zWP61+RGag==}
-    dependencies:
-      domelementtype: 2.3.0
-      domhandler: 4.3.1
-      entities: 2.2.0
-    dev: true
-
   /dom-serializer@2.0.0:
     resolution: {integrity: sha512-wIkAryiqt/nV5EQKqQpo3SToSOV9J0DnbJqwK7Wv/Trc92zIAYZ4FlMu+JPFW1DfGFt81ZTCGgDEabffXeLyJg==}
     dependencies:
@@ -2331,13 +2251,6 @@ packages:
     resolution: {integrity: sha512-OLETBj6w0OsagBwdXnPdN0cnMfF9opN69co+7ZrbfPGrdpPVNBUj02spi6B1N7wChLQiPn4CSH/zJvXw56gmHw==}
     dev: true
 
-  /domhandler@4.3.1:
-    resolution: {integrity: sha512-GrwoxYN+uWlzO8uhUXRl0P+kHE4GtVPfYzVLcUxPL7KNdHKj66vvlhiweIHqYYXWlw+T8iLMp42Lm67ghw4WMQ==}
-    engines: {node: '>= 4'}
-    dependencies:
-      domelementtype: 2.3.0
-    dev: true
-
   /domhandler@5.0.3:
     resolution: {integrity: sha512-cgwlv/1iFQiFnU96XXgROh8xTeetsnJiDsTc7TYCLFd9+/WNkIqPTxiM/8pSd8VIrhXGTf1Ny1q1hquVqDJB5w==}
     engines: {node: '>= 4'}
@@ -2345,14 +2258,6 @@ packages:
       domelementtype: 2.3.0
     dev: true
 
-  /domutils@2.8.0:
-    resolution: {integrity: sha512-w96Cjofp72M5IIhpjgobBimYEfoPjx1Vx0BSX9P30WBdZW2WIKU0T1Bd0kz2eNZ9ikjKgHbEyKx8BB6H1L3h3A==}
-    dependencies:
-      dom-serializer: 1.4.1
-      domelementtype: 2.3.0
-      domhandler: 4.3.1
-    dev: true
-
   /domutils@3.1.0:
     resolution: {integrity: sha512-H78uMmQtI2AhgDJjWeQmHwJJ2bLPD3GMmO7Zja/ZZh84wkm+4ut+IUnUdRa8uCGX88DiVx1j6FRe1XfxEgjEZA==}
     dependencies:
@@ -2361,35 +2266,10 @@ packages:
       domhandler: 5.0.3
     dev: true
 
-  /dot-case@3.0.4:
-    resolution: {integrity: sha512-Kv5nKlh6yRrdrGvxeJ2e5y2eRUpkUosIW4A2AS38zwSz27zu7ufDwQPi5Jhs3XAlGNetl3bmnGhQsMtkKJnj3w==}
-    dependencies:
-      no-case: 3.0.4
-      tslib: 2.6.2
-    dev: true
-
-  /dotenv-expand@8.0.3:
-    resolution: {integrity: sha512-SErOMvge0ZUyWd5B0NXMQlDkN+8r+HhVUsxgOO7IoPDOdDRD2JjExpN6y3KnFR66jsJMwSn1pqIivhU5rcJiNg==}
-    engines: {node: '>=12'}
-    dev: true
-
-  /dotenv@16.3.1:
-    resolution: {integrity: sha512-IPzF4w4/Rd94bA9imS68tZBaYyBWSCE47V1RGuMrB94iyTOIEwRmVL2x/4An+6mETpLrKJ5hQkB8W4kFAadeIQ==}
-    engines: {node: '>=12'}
-    dev: true
-
   /eastasianwidth@0.2.0:
     resolution: {integrity: sha512-I88TYZWc9XiYHRQ4/3c5rjjfgkjhLyW2luGIheGERbNQ6OY7yTybanSpDXZa8y7VUP9YmDcYa+eyq4ca7iLqWA==}
     dev: false
 
-  /ejs@3.1.9:
-    resolution: {integrity: sha512-rC+QVNMJWv+MtPgkt0y+0rVEIdbtxVADApW9JXrUVlzHetgcyczP/E7DJmWJ4fJCZF2cPcBk0laWO9ZHMG3DmQ==}
-    engines: {node: '>=0.10.0'}
-    hasBin: true
-    dependencies:
-      jake: 10.8.7
-    dev: true
-
   /electron-to-chromium@1.4.601:
     resolution: {integrity: sha512-SpwUMDWe9tQu8JX5QCO1+p/hChAi9AE9UpoC3rcHVc+gdCGlbT3SGb5I1klgb952HRIyvt9wZhSz9bNBYz9swA==}
     dev: true
@@ -2410,10 +2290,6 @@ packages:
       tapable: 2.2.1
     dev: true
 
-  /entities@2.2.0:
-    resolution: {integrity: sha512-p92if5Nz619I0w+akJrLZH0MX0Pb5DX39XOwQTtXSdQQOaYH03S1uIQp4mhOZtAXrxq4ViO67YTiLBo2638o9A==}
-    dev: true
-
   /entities@4.5.0:
     resolution: {integrity: sha512-V0hjH4dGPh9Ao5p0MoRY6BVqtwCjhz6vI5LT8AJ55H+4g9/4vbHx1I54fS0XuclLhDHArPQCiMjDxjaL8fPxhw==}
     engines: {node: '>=0.12'}
@@ -3067,12 +2943,6 @@ packages:
       flat-cache: 3.2.0
     dev: true
 
-  /filelist@1.0.4:
-    resolution: {integrity: sha512-w1cEuf3S+DrLCQL7ET6kz+gmlJdbq9J7yXCSjK/OZCPA+qEN1WyF4ZAf0YYJa4/shHJra2t/d/r8SV4Ji+x+8Q==}
-    dependencies:
-      minimatch: 5.1.6
-    dev: true
-
   /fill-range@7.0.1:
     resolution: {integrity: sha512-qOo9F+dMUmC2Lcb4BbVvnKJxTPjCm+RRpe4gDuGrzkL7mEVl/djYSu2OdQ2Pa302N4oqkSg9ir6jaLWJ2USVpQ==}
     engines: {node: '>=8'}
@@ -3153,15 +3023,6 @@ packages:
     resolution: {integrity: sha512-ZsDfxO51wGAXREY55a7la9LScWpwv9RxIrYABrlvOFBlH/ShPnrtsXeuUIfXKKOVicNxQ+o8JTbJvjS4M89yew==}
     dev: true
 
-  /fs-extra@10.1.0:
-    resolution: {integrity: sha512-oRXApq54ETRj4eMiFzGnHWGy+zo5raudjuxN0b8H7s/RU2oW0Wvsx9O0ACRN/kRq9E8Vu/ReskGB5o3ji+FzHQ==}
-    engines: {node: '>=12'}
-    dependencies:
-      graceful-fs: 4.2.11
-      jsonfile: 6.1.0
-      universalify: 2.0.1
-    dev: true
-
   /fs.realpath@1.0.0:
     resolution: {integrity: sha512-OO0pH2lK6a0hZnAdau5ItzHPI6pUlvI7jMVnxUQRtw4owF2wk8lOSabtGDCTP4Ggrg2MbGnWO9X8K1t4+fGMDw==}
 
@@ -3382,20 +3243,6 @@ packages:
     resolution: {integrity: sha512-mxIDAb9Lsm6DoOJ7xH+5+X4y1LU/4Hi50L9C5sIswK3JzULS4bwk1FvjdBgvYR4bzT4tuUQiC15FE2f5HbLvYw==}
     dev: true
 
-  /html-minifier-terser@6.1.0:
-    resolution: {integrity: sha512-YXxSlJBZTP7RS3tWnQw74ooKa6L9b9i9QYXY21eUEvhZ3u9XLfv6OnFsQq6RxkhHygsaUMvYsZRV5rU/OVNZxw==}
-    engines: {node: '>=12'}
-    hasBin: true
-    dependencies:
-      camel-case: 4.1.2
-      clean-css: 5.3.3
-      commander: 8.3.0
-      he: 1.2.0
-      param-case: 3.0.4
-      relateurl: 0.2.7
-      terser: 5.24.0
-    dev: true
-
   /html-tags@3.3.1:
     resolution: {integrity: sha512-ztqyC3kLto0e9WbNp0aeP+M3kTt+nbaIveGmUxAtZa+8iFgKLUOD4YKM5j+f3QD89bra7UeumolZHKuOXnTmeQ==}
     engines: {node: '>=8'}
@@ -3645,17 +3492,6 @@ packages:
       '@pkgjs/parseargs': 0.11.0
     dev: false
 
-  /jake@10.8.7:
-    resolution: {integrity: sha512-ZDi3aP+fG/LchyBzUM804VjddnwfSfsdeYkwt8NcbKRvo4rFkjhs456iLFn3k2ZUWvNe4i48WACDbza8fhq2+w==}
-    engines: {node: '>=10'}
-    hasBin: true
-    dependencies:
-      async: 3.2.5
-      chalk: 4.1.2
-      filelist: 1.0.4
-      minimatch: 3.1.2
-    dev: true
-
   /jiti@1.21.0:
     resolution: {integrity: sha512-gFqAIbuKyyso/3G2qhiO2OM6shY6EPP/R0+mkDbyspxKazh8BXDC5FiFsUjlczgdNz/vfra0da2y+aHrusLG/Q==}
     hasBin: true
@@ -3735,14 +3571,6 @@ packages:
     resolution: {integrity: sha512-gfFQZrcTc8CnKXp6Y4/CBT3fTc0OVuDofpre4aEeEpSBPV5X5v4+Vmx+8snU7RLPrNHPKSgLxGo9YuQzz20o+w==}
     dev: true
 
-  /jsonfile@6.1.0:
-    resolution: {integrity: sha512-5dgndWOriYSm5cnYaJNhalLNDKOqFwyDB/rr1E9ZsGciGvKPs8R2xYGCacuf3z6K1YKDz182fd+fY3cn3pMqXQ==}
-    dependencies:
-      universalify: 2.0.1
-    optionalDependencies:
-      graceful-fs: 4.2.11
-    dev: true
-
   /keyv@4.5.4:
     resolution: {integrity: sha512-oxVHkHR/EJf2CNXnWxRLW6mg7JyCCUcG0DtEGmL2ctUo1PNTin1PUil+r/+4r5MpVgC/fn1kjsx7mjSujKqIpw==}
     dependencies:
@@ -3838,12 +3666,6 @@ packages:
       js-tokens: 4.0.0
     dev: false
 
-  /lower-case@2.0.2:
-    resolution: {integrity: sha512-7fm3l3NAF9WfN6W3JOmf5drwpVqX78JtoGJ3A6W0a6ZnldM41w2fV5D490psKFTpMds8TJse/eHLFFsNHHjHgg==}
-    dependencies:
-      tslib: 2.6.2
-    dev: true
-
   /lru-cache@10.1.0:
     resolution: {integrity: sha512-/1clY/ui8CzjKFyjdvwPWJUYKiFVXG2I2cY0ssG7h4+hwk+XOIX7ZSG9Q7TW8TW3Kp3BUSqgFWBLgL4PJ+Blag==}
     engines: {node: 14 || >=16.14}
@@ -3965,13 +3787,6 @@ packages:
     dependencies:
       brace-expansion: 1.1.11
 
-  /minimatch@5.1.6:
-    resolution: {integrity: sha512-lKwV/1brpG6mBUFHtb7NUmtABCb2WZZmm2wNiOA5hAb8VdCS4B3dtMWyvcoViccwAW/COERjXLt0zP1zXUN26g==}
-    engines: {node: '>=10'}
-    dependencies:
-      brace-expansion: 2.0.1
-    dev: true
-
   /minimatch@9.0.3:
     resolution: {integrity: sha512-RHiac9mvaRw0x3AYRgDC1CxAP7HTcNrrECeA8YYJeWnpo+2Q5CegtZjaotWTWxDG3UeGA1coE05iH1mPjT/2mg==}
     engines: {node: '>=16 || 14 >=14.17'}
@@ -4041,20 +3856,6 @@ packages:
       - supports-color
     optional: true
 
-  /no-case@3.0.4:
-    resolution: {integrity: sha512-fgAN3jGAh+RoxUGZHTSOLJIqUc2wmoBwGR4tbpNAKmmovFoWq0OdRkb0VkldReO2a2iBT/OEulG9XSUc10r3zg==}
-    dependencies:
-      lower-case: 2.0.2
-      tslib: 2.6.2
-    dev: true
-
-  /node-html-parser@5.4.2:
-    resolution: {integrity: sha512-RaBPP3+51hPne/OolXxcz89iYvQvKOydaqoePpOgXcrOKZhjVIzmpKZz+Hd/RBO2/zN2q6CNJhQzucVz+u3Jyw==}
-    dependencies:
-      css-select: 4.3.0
-      he: 1.2.0
-    dev: true
-
   /node-releases@2.0.14:
     resolution: {integrity: sha512-y10wOWt8yZpqXmOgRo77WaHEmhYQYGNA6y421PKsKYWEK8aW+cqAphborZDhqfyKrbZEN92CN1X2KbafY2s7Yw==}
     dev: true
@@ -4194,13 +3995,6 @@ packages:
     engines: {node: '>=6'}
     dev: true
 
-  /param-case@3.0.4:
-    resolution: {integrity: sha512-RXlj7zCYokReqWpOPH9oYivUzLYZ5vAPIfEmCTNViosC78F8F0H9y7T7gG2M39ymgutxF5gcFEsyZQSph9Bp3A==}
-    dependencies:
-      dot-case: 3.0.4
-      tslib: 2.6.2
-    dev: true
-
   /parent-module@1.0.1:
     resolution: {integrity: sha512-GQ2EWRpQV8/o+Aw8YqtfZZPfNRWZYkbidE9k5rpl/hC3vtHHBfGm2Ifi6qWV+coDGkrUKZAxE3Lot5kcsRlh+g==}
     engines: {node: '>=6'}
@@ -4241,13 +4035,6 @@ packages:
     resolution: {integrity: sha512-Ofn/CTFzRGTTxwpNEs9PP93gXShHcTq255nzRYSKe8AkVpZY7e1fpmTfOyoIvjP5HG7Z2ZM7VS9PPhQGW2pOpw==}
     dev: false
 
-  /pascal-case@3.1.2:
-    resolution: {integrity: sha512-uWlGT3YSnK9x3BQJaOdcZwrnV6hPpd8jFH1/ucpiLRPh/2zCVJKS19E4GvYHvaCcACn3foXZ0cLB9Wrx1KGe5g==}
-    dependencies:
-      no-case: 3.0.4
-      tslib: 2.6.2
-    dev: true
-
   /path-browserify@1.0.1:
     resolution: {integrity: sha512-b7uo2UCUOYZcnF/3ID0lulOJi/bafxa1xPe7ZPsammBSpjSWQkjNxlt635YGS2MiR9GjvuXCtz2emr3jbsz98g==}
     dev: true
@@ -4281,10 +4068,6 @@ packages:
     resolution: {integrity: sha512-gDKb8aZMDeD/tZWs9P6+q0J9Mwkdl6xMV8TjnGP3qJVJ06bdMgkbBlLU8IdfOsIsFz2BW1rNVT3XuNEl8zPAvw==}
     engines: {node: '>=8'}
 
-  /pathe@0.2.0:
-    resolution: {integrity: sha512-sTitTPYnn23esFR3RlqYBWn4c45WGeLcsKzQiUpXJAyfcWkolvlYpV8FLo7JishK946oQwMFUCHXQ9AjGPKExw==}
-    dev: true
-
   /pathe@1.1.1:
     resolution: {integrity: sha512-d+RQGp0MAYTIaDBIMmOfMwz3E+LOZnxx1HZd5R18mmCZY0QBlK0LDZfPc8FW8Ed2DlvsuE6PRjroDY+wg4+j/Q==}
     dev: true
@@ -4513,11 +4296,6 @@ packages:
       jsesc: 0.5.0
     dev: true
 
-  /relateurl@0.2.7:
-    resolution: {integrity: sha512-G08Dxvm4iDN3MLM0EsP62EDV9IuhXPR6blNz6Utcp7zyV3tr4HVNINt6MpaRWbxoOHT3Q7YN2P+jaHX8vUbgog==}
-    engines: {node: '>= 0.10'}
-    dev: true
-
   /resize-observer-polyfill@1.5.1:
     resolution: {integrity: sha512-LwZrotdHOo12nQuZlHEmtuXdqGoOD0OhaxopaNFxWzInpEgaLWoVuAMbTzixuosCx2nEG58ngzW3vxdWoxIgdg==}
     dev: false
@@ -4702,16 +4480,11 @@ packages:
     resolution: {integrity: sha512-R0XvVJ9WusLiqTCEiGCmICCMplcCkIwwR11mOSD9CR5u+IXYdiseeEuXCVAjS54zqwkLcPNnmU4OeJ6tUrWhDw==}
     engines: {node: '>=0.10.0'}
 
-  /source-map-support@0.5.21:
-    resolution: {integrity: sha512-uBHU3L3czsIyYXKX88fdrGovxdSCoTGDRZ6SYXtSRxLZUzHg5P/66Ht6uoUlHu9EZod+inXhKo3qQgwXUT/y1w==}
-    dependencies:
-      buffer-from: 1.1.2
-      source-map: 0.6.1
-    dev: true
-
   /source-map@0.6.1:
     resolution: {integrity: sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==}
     engines: {node: '>=0.10.0'}
+    requiresBuild: true
+    optional: true
 
   /spdx-correct@3.2.0:
     resolution: {integrity: sha512-kN9dJbvnySHULIluDHy32WHRUu3Og7B9sbY7tsFLctQkIqnMh3hErYgdMjTYuqmcXX+lK5T1lnUt3G7zNswmZA==}
@@ -4957,17 +4730,6 @@ packages:
     engines: {node: '>=6'}
     dev: true
 
-  /terser@5.24.0:
-    resolution: {integrity: sha512-ZpGR4Hy3+wBEzVEnHvstMvqpD/nABNelQn/z2r0fjVWGQsN3bpOLzQlqDxmb4CDZnXq5lpjnQ+mHQLAOpfM5iw==}
-    engines: {node: '>=10'}
-    hasBin: true
-    dependencies:
-      '@jridgewell/source-map': 0.3.5
-      acorn: 8.11.2
-      commander: 2.20.3
-      source-map-support: 0.5.21
-    dev: true
-
   /text-table@0.2.0:
     resolution: {integrity: sha512-N+8UisAXDGk8PFXP4HAzVR9nbfmVJ3zYLAWiTIoqC5v5isinhr+r5uaO8+7r3BMfuNIufIsA7RdpVgacC2cSpw==}
     dev: true
@@ -5150,11 +4912,6 @@ packages:
       '@types/unist': 2.0.10
     dev: true
 
-  /universalify@2.0.1:
-    resolution: {integrity: sha512-gptHNQghINnc/vTGIk0SOFGFNXw7JVrlRUtConJRlvaw6DuX0wO5Jeko9sWrMBhh+PsYAZ7oXAiOnf/UKogyiw==}
-    engines: {node: '>= 10.0.0'}
-    dev: true
-
   /unplugin-auto-import@0.17.1(@vueuse/core@10.6.1):
     resolution: {integrity: sha512-QvdJKtFK0COSuRXzVnwjG3ir870zVhdMg6O8GKG3UO/O5W4fmJm5h71QvzI7Gp8Sx0qfCvC3f+2v0Vm489fnqQ==}
     engines: {node: '>=14'}
@@ -5264,7 +5021,7 @@ packages:
       '@types/node': 20.10.2
       rimraf: 5.0.5
       typescript: 5.3.2
-      vite: 5.0.8(@types/node@20.10.2)(less@4.2.0)
+      vite: 5.0.9(@types/node@20.10.2)(less@4.2.0)
     transitivePeerDependencies:
       - less
       - lightningcss
@@ -5274,26 +5031,6 @@ packages:
       - terser
     dev: false
 
-  /vite-plugin-html@3.2.0(vite@5.0.8):
-    resolution: {integrity: sha512-2VLCeDiHmV/BqqNn5h2V+4280KRgQzCFN47cst3WiNK848klESPQnzuC3okH5XHtgwHH/6s1Ho/YV6yIO0pgoQ==}
-    peerDependencies:
-      vite: '>=2.0.0'
-    dependencies:
-      '@rollup/pluginutils': 4.2.1
-      colorette: 2.0.20
-      connect-history-api-fallback: 1.6.0
-      consola: 2.15.3
-      dotenv: 16.3.1
-      dotenv-expand: 8.0.3
-      ejs: 3.1.9
-      fast-glob: 3.3.2
-      fs-extra: 10.1.0
-      html-minifier-terser: 6.1.0
-      node-html-parser: 5.4.2
-      pathe: 0.2.0
-      vite: 5.0.8(@types/node@20.10.2)(less@4.2.0)
-    dev: true
-
   /vite-svg-loader@5.1.0(vue@3.3.11):
     resolution: {integrity: sha512-M/wqwtOEjgb956/+m5ZrYT/Iq6Hax0OakWbokj8+9PXOnB7b/4AxESHieEtnNEy7ZpjsjYW1/5nK8fATQMmRxw==}
     peerDependencies:
@@ -5303,8 +5040,8 @@ packages:
       vue: 3.3.11(typescript@5.3.2)
     dev: true
 
-  /vite@5.0.8(@types/node@20.10.2)(less@4.2.0):
-    resolution: {integrity: sha512-jYMALd8aeqR3yS9xlHd0OzQJndS9fH5ylVgWdB+pxTwxLKdO1pgC5Dlb398BUxpfaBxa4M9oT7j1g503Gaj5IQ==}
+  /vite@5.0.9(@types/node@20.10.2)(less@4.2.0):
+    resolution: {integrity: sha512-wVqMd5kp28QWGgfYPDfrj771VyHTJ4UDlCteLH7bJDGDEamaz5hV8IX6h1brSGgnnyf9lI2RnzXq/JmD0c2wwg==}
     engines: {node: ^18.0.0 || >=20.0.0}
     hasBin: true
     peerDependencies:
@@ -5430,8 +5167,8 @@ packages:
       vue: 3.3.11(typescript@5.3.2)
     dev: false
 
-  /vue3-gettext@3.0.0-beta.2(@vue/compiler-sfc@3.3.10)(vue@3.3.11):
-    resolution: {integrity: sha512-pty6Nj1cXtF2WrUvNY6caDfPlJFu7A6QCOH3btzTlMj1hk86Xpfj0XwyGdxTz/8YnGwVR5eiaudxQYbYW/0ZIw==}
+  /vue3-gettext@3.0.0-beta.3(@vue/compiler-sfc@3.3.10)(vue@3.3.11):
+    resolution: {integrity: sha512-zE6qKEhzlL4R/El9Z6dSg+tmXjfLorG5/Y2o+Z+DMt7dMxeYF3FQbkHzvU7DKZMXkAkkscwspmwsYAXp5ctGdA==}
     engines: {node: '>= 12.0.0'}
     hasBin: true
     peerDependencies:

app/src/api/upstream.ts

@@ -0,0 +1,14 @@
+import ws from '@/lib/websocket'
+
+export interface UpstreamStatus {
+  online: boolean
+  latency: number
+}
+
+const upstream = {
+  availability_test() {
+    return ws('/api/availability_test')
+  },
+}
+
+export default upstream

app/src/version.json

@@ -1 +1 @@
-{"version":"2.0.0-beta.7","build_id":94,"total_build":298}
+{"version":"2.0.0-beta.7","build_id":97,"total_build":301}

app/src/views/domain/ngx_conf/NgxUpstream.vue

@@ -2,8 +2,11 @@
 import { MoreOutlined, PlusOutlined } from '@ant-design/icons-vue'
 import { useGettext } from 'vue3-gettext'
 import Modal from 'ant-design-vue/lib/modal'
-import type { NgxConfig } from '@/api/ngx'
+import _ from 'lodash'
+import type { NgxConfig, NgxDirective } from '@/api/ngx'
 import DirectiveEditor from '@/views/domain/ngx_conf/directive/DirectiveEditor.vue'
+import type { UpstreamStatus } from '@/api/upstream.ts'
+import upstream from '@/api/upstream.ts'
 
 const { $gettext } = useGettext()
 
@@ -11,12 +14,17 @@ const [modal, ContextHolder] = Modal.useModal()
 
 const ngx_config = inject('ngx_config') as NgxConfig
 const current_upstream_index = ref(0)
-function add_upstream() {
+async function add_upstream() {
+  if (!ngx_config.upstreams)
+    ngx_config.upstreams = []
+
   ngx_config.upstreams?.push({
     name: '',
     comments: '',
     directives: [],
   })
+
+  rename(ngx_config.upstreams.length - 1)
 }
 
 function remove_upstream(index: number) {
@@ -54,12 +62,54 @@ function ok() {
     ngx_config.upstreams[renameIdx.value].name = buffer.value
   open.value = false
 }
+
+const availabilityResult = ref({}) as Ref<Record<string, UpstreamStatus>>
+const websocket = ref()
+function availability_test() {
+  const sockets: string[] = []
+  for (const u of ngx_config.upstreams ?? []) {
+    for (const d of u.directives ?? []) {
+      if (d.directive === 'server')
+        sockets.push(d.params.split(' ')[0])
+    }
+  }
+
+  websocket.value = upstream.availability_test()
+  websocket.value.onopen = () => {
+    websocket.value.send(JSON.stringify(sockets))
+  }
+  websocket.value.onmessage = (e: MessageEvent) => {
+    availabilityResult.value = JSON.parse(e.data)
+  }
+}
+
+onMounted(() => {
+  availability_test()
+})
+
+onBeforeUnmount(() => {
+  websocket.value?.close()
+})
+
+async function _restartTest() {
+  websocket.value?.close()
+  availability_test()
+}
+
+const restartTest = _.throttle(_restartTest, 5000)
+
+watch(ngx_directives, () => {
+  restartTest()
+}, { deep: true })
 </script>
 
 <template>
   <div>
     <ContextHolder />
-    <ATabs v-model:activeKey="current_upstream_index">
+    <ATabs
+      v-if="ngx_config.upstreams && ngx_config.upstreams.length > 0"
+      v-model:activeKey="current_upstream_index"
+    >
       <ATabPane
         v-for="(v, k) in ngx_config.upstreams"
         :key="k"
@@ -82,7 +132,14 @@ function ok() {
         </template>
 
         <div class="tab-content">
-          <DirectiveEditor />
+          <DirectiveEditor>
+            <template #directiveSuffix="{ directive }: {directive: NgxDirective}">
+              <template v-if="availabilityResult[directive.params]?.online">
+                <ABadge color="green" />
+                {{ availabilityResult[directive.params]?.latency.toFixed(2) }}ms
+              </template>
+            </template>
+          </DirectiveEditor>
         </div>
       </ATabPane>
 
@@ -97,10 +154,21 @@ function ok() {
         </AButton>
       </template>
     </ATabs>
+    <div v-else>
+      <AEmpty />
+      <div class="flex justify-center">
+        <AButton
+          type="primary"
+          @click="add_upstream"
+        >
+          {{ $gettext('Create') }}
+        </AButton>
+      </div>
+    </div>
 
     <AModal
       v-model:open="open"
-      :title="$gettext('Rename Upstream')"
+      :title="$gettext('Upstream Name')"
       centered
       @ok="ok"
     >

app/src/views/domain/ngx_conf/directive/DirectiveEditor.vue

@@ -8,6 +8,7 @@ import type { NgxDirective } from '@/api/ngx'
 
 defineProps<{
   readonly?: boolean
+  context?: string
 }>()
 
 const { $gettext } = useGettext()
@@ -33,8 +34,19 @@ provide('current_idx', current_idx)
         v-auto-animate
         :index="index"
         :readonly="readonly"
+        :context="context"
         @click="current_idx = index"
-      />
+      >
+        <template
+          v-if="$slots.directiveSuffix"
+          #suffix="{ directive }"
+        >
+          <slot
+            name="directiveSuffix"
+            :directive="directive"
+          />
+        </template>
+      </DirectiveEditorItem>
     </template>
   </Draggable>
 

app/src/views/domain/ngx_conf/directive/DirectiveEditorItem.vue

@@ -11,6 +11,7 @@ import type { NgxDirective } from '@/api/ngx'
 const props = defineProps<{
   index: number
   readonly?: boolean
+  context?: string
 }>()
 
 const { $gettext, interpolate } = useGettext()
@@ -72,6 +73,15 @@ const currentIdx = inject('current_idx')
           <HolderOutlined />
           {{ ngx_directives[props.index].directive }}
         </template>
+        <template
+          v-if="$slots.suffix"
+          #suffix
+        >
+          <slot
+            name="suffix"
+            :directive="ngx_directives[props.index]"
+          />
+        </template>
       </AInput>
 
       <APopconfirm

app/version.json

@@ -1 +1 @@
-{"version":"2.0.0-beta.7","build_id":94,"total_build":298}
+{"version":"2.0.0-beta.7","build_id":97,"total_build":301}

go.mod

@@ -17,7 +17,7 @@ require (
 	github.com/go-co-op/gocron v1.36.0
 	github.com/go-playground/validator/v10 v10.16.0
 	github.com/golang-jwt/jwt v3.2.2+incompatible
-	github.com/google/uuid v1.4.0
+	github.com/google/uuid v1.5.0
 	github.com/gorilla/websocket v1.5.1
 	github.com/hpcloud/tail v1.0.0
 	github.com/jpillora/overseer v1.1.6
@@ -195,6 +195,7 @@ require (
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/power-devops/perfstat v0.0.0-20221212215047-62379fc7944b // indirect
 	github.com/pquerna/otp v1.4.0 // indirect
+	github.com/prometheus-community/pro-bing v0.3.0 // indirect
 	github.com/robfig/cron/v3 v3.0.1 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/sacloud/api-client-go v0.2.9 // indirect
@@ -239,6 +240,7 @@ require (
 	golang.org/x/mod v0.14.0 // indirect
 	golang.org/x/net v0.19.0 // indirect
 	golang.org/x/oauth2 v0.15.0 // indirect
+	golang.org/x/sync v0.5.0 // indirect
 	golang.org/x/sys v0.15.0 // indirect
 	golang.org/x/text v0.14.0 // indirect
 	golang.org/x/time v0.5.0 // indirect

go.sum

@@ -1065,6 +1065,8 @@ github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+
 github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/google/uuid v1.4.0 h1:MtMxsa51/r9yyhkyLsVeVt0B+BGQZzpQiTQ4eHZ8bc4=
 github.com/google/uuid v1.4.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/google/uuid v1.5.0 h1:1p67kYwdtXjb0gL0BPiP1Av9wiZPo5A8z2cWkTZ+eyU=
+github.com/google/uuid v1.5.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/googleapis/enterprise-certificate-proxy v0.0.0-20220520183353-fd19c99a87aa/go.mod h1:17drOmN3MwGY7t0e+Ei9b45FFGA3fBs3x36SsCg1hq8=
 github.com/googleapis/enterprise-certificate-proxy v0.1.0/go.mod h1:17drOmN3MwGY7t0e+Ei9b45FFGA3fBs3x36SsCg1hq8=
 github.com/googleapis/enterprise-certificate-proxy v0.2.0/go.mod h1:8C0jb7/mgJe/9KK8Lm7X9ctZC2t60YyIpYEI16jx0Qg=
@@ -1470,6 +1472,8 @@ github.com/pquerna/otp v1.4.0 h1:wZvl1TIVxKRThZIBiwOOHOGP/1+nZyWBil9Y2XNEDzg=
 github.com/pquerna/otp v1.4.0/go.mod h1:dkJfzwRKNiegxyNb54X/3fLwhCynbMspSyWKnvi1AEg=
 github.com/pretty66/websocketproxy v0.0.0-20220507015215-930b3a686308 h1:JfSau4YABtkm5gRtFWuRWHT2Lsw4ZbyB4F/qORwf+BA=
 github.com/pretty66/websocketproxy v0.0.0-20220507015215-930b3a686308/go.mod h1:hxhFuMswfNko9fAxYeqBapfUdJHAgDafBs/MzOZh0X8=
+github.com/prometheus-community/pro-bing v0.3.0 h1:SFT6gHqXwbItEDJhTkzPWVqU6CLEtqEfNAPp47RUON4=
+github.com/prometheus-community/pro-bing v0.3.0/go.mod h1:p9dLb9zdmv+eLxWfCT6jESWuDrS+YzpPkQBgysQF8a0=
 github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
 github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDft0ttaMvbicHlPoso=
 github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=

internal/upstream/upstream.go

@@ -0,0 +1,83 @@
+package upstream
+
+import (
+    "net"
+    "sync"
+    "time"
+)
+
+const MaxTimeout = 5 * time.Second
+const MaxConcurrentWorker = 10
+
+type Status struct {
+    Online  bool    `json:"online"`
+    Latency float32 `json:"latency"`
+}
+
+func AvailabilityTest(body []string) (result map[string]*Status) {
+    result = make(map[string]*Status)
+
+    wg := sync.WaitGroup{}
+    wg.Add(len(body))
+    c := make(chan struct{}, MaxConcurrentWorker)
+    for _, socket := range body {
+        c <- struct{}{}
+        s := &Status{}
+        go testLatency(c, &wg, socket, s)
+        result[socket] = s
+    }
+    wg.Wait()
+
+    return
+}
+
+func testLatency(c chan struct{}, wg *sync.WaitGroup, socket string, status *Status) {
+    defer func() {
+        wg.Done()
+        <-c
+    }()
+
+    scopedWg := sync.WaitGroup{}
+    scopedWg.Add(2)
+    go testTCPLatency(&scopedWg, socket, status)
+    go testUnixSocketLatency(&scopedWg, socket, status)
+    scopedWg.Wait()
+}
+
+func testTCPLatency(wg *sync.WaitGroup, socket string, status *Status) {
+    defer func() {
+        wg.Done()
+    }()
+    start := time.Now()
+    conn, err := net.DialTimeout("tcp", socket, MaxTimeout)
+
+    if err != nil {
+        return
+    }
+
+    defer conn.Close()
+
+    end := time.Now()
+
+    status.Online = true
+    status.Latency = float32(end.Sub(start)) / float32(time.Millisecond)
+}
+
+func testUnixSocketLatency(wg *sync.WaitGroup, socket string, status *Status) {
+    defer func() {
+        wg.Done()
+    }()
+    start := time.Now()
+    conn, err := net.DialTimeout("unix", socket, MaxTimeout)
+
+    if err != nil {
+        return
+    }
+
+    defer conn.Close()
+
+    end := time.Now()
+
+    status.Online = true
+    status.Latency = float32(end.Sub(start)) / float32(time.Millisecond)
+}

router/routers.go

@@ -12,6 +12,7 @@ import (
 	"github.com/0xJacky/Nginx-UI/api/system"
 	"github.com/0xJacky/Nginx-UI/api/template"
 	"github.com/0xJacky/Nginx-UI/api/terminal"
+	"github.com/0xJacky/Nginx-UI/api/upstream"
 	"github.com/0xJacky/Nginx-UI/api/user"
 	"github.com/gin-contrib/static"
 	"github.com/gin-gonic/gin"
@@ -64,6 +65,7 @@ func InitRouter() *gin.Engine {
 			analytic.InitWebSocketRouter(w)
 			terminal.InitRouter(w)
 			nginx.InitNginxLogRouter(w)
+			upstream.InitRouter(w)
 		}
 
 	}