From 19e106fb583c13bf6feac201fb5b6a21b3e0c8f1 Mon Sep 17 00:00:00 2001
From: lwcrosier <lwc5402@psu.edu>
Date: Mon, 8 Dec 2025 21:14:23 -0500
Subject: [PATCH] Working to update finding reverse proxies

---
 src/views/HomeView.vue | 166 +++++++++++++++++++++++++++++++++++++----
 1 file changed, 151 insertions(+), 15 deletions(-)

diff --git a/src/views/HomeView.vue b/src/views/HomeView.vue
index 4150e52..32aeca2 100644
--- a/src/views/HomeView.vue
+++ b/src/views/HomeView.vue
@@ -6,11 +6,16 @@
     <p>{{ caddyConfig }}</p>
     
     <ButtonTest />
+
+    <br />
+
+    <button type="button" class="btn btn-secondary" @click="filterCaddyConfig(fetch_data)">Filter Caddy Config</button>
     </div>
 
 </template>
 
 <script>
+
 import ButtonTest from '../views/ButtonTest.vue';
 
     export default {
@@ -21,7 +26,9 @@ import ButtonTest from '../views/ButtonTest.vue';
             return {
                 caddyConfig: null,
                 isLoading: false,
-                error: null
+                error: null,
+                reverse_proxy_routes: null
+
             };
         },
         methods: {
@@ -48,27 +55,156 @@ import ButtonTest from '../views/ButtonTest.vue';
                     console.error(error);
                 }
 
+            },
+            filterCaddyConfig() {
+                const apps = this.caddyConfig.apps;
+                const routes = apps.http.servers.srv0.routes;
+                
+                //let reverse_proxy_array = [];
+
                 /*
-                fetch('http://localhost:2019/config/', {
-                        mode: 'cors',
-                        method: 'GET'
-                    })
-                .then(response => response.json())
-                .then(data => {
-                    fetch_data = data;
-                    this.myData = data;
-                })
-                .catch(error => {
-                        console.error('Error:', error);
-                        this.error = error;
-                    }
-                );
+                for (let key in routes) {
+                    
+                }
                 */
+                //console.log(routes);
+                //console.log("Filtering Caddy Config");
+                //findRps(routes);
+                let rp_dict = findRPRecursively(routes);
+                console.log(rp_dict);
             }
+            
         },
         mounted() {
             this.fetchCaddyConfig();
         }
     }
 
+    function findRps(routes) {
+        console.log ("Searching for reverse_proxy");
+        // We're interested in routes and handlers.  We specifically want subroutes and reverse_proxy handler
+
+        // routes are lists of handles
+        // handles are lists of routes
+        // subroute handler will have a routes list of more handles
+
+        let rpDictionary = {};
+
+        for(let r_key in routes) {
+            // In each route, we'll look at the first layer of handles
+                // Actually, we need to find subroute, since subroute is what holds the reverse_proxy!
+
+            // Then in each route, search for the match list to get the hosts (only if first layer reverse_proxy is found)
+            //let rp_found = false;
+            // Loop over handle list
+            var caddy_rp = null;
+            var caddy_hn = null;
+            
+            for(let h_key in routes[r_key].handle){
+                // Check if the route.handle.handler == "subroute"
+                let rp_found = false;
+                if( routes[r_key].handle[h_key].handler === "subroute" ) {
+                    console.log(routes[r_key].handle[h_key]);
+                    for(let r2_key in routes[r_key].handle[h_key].routes) {
+                        for(let h2_key in routes[r_key].handle[h_key].routes[r_key].handler){
+                            if ( routes[r_key].handle[h_key].routes[r_key].handle[h2_key].handler === "reverse_proxy") {
+                                //let x = routes[r_key].handle[h_key].routes[r2_key].handle[h2_key].upstreams[0].dial;
+                                caddy_rp = routes[r_key].handle[h_key].routes[r2_key].handle[h2_key].upstreams[0].dial;
+                                //console.log("reverse proxy found.  Address is: " + x);
+                                rp_found = true;    
+                            }
+                            if(rp_found === true){
+                               break;
+                            }
+                        }
+                        if(rp_found === true){
+                            break;
+                        }
+                    }
+                }
+
+                caddy_hn = routes[r_key].match[0].host[0];
+                rpDictionary[caddy_hn] = caddy_rp;
+                console.log(`Hostname ${caddy_hn} will be proxied to ${caddy_rp}`);
+                //if(rp_found === true){
+                //    break;
+                //}
+            }
+            //console.log("rp hostname is " + routes[r_key].match[0].host[0]);
+
+            //if (rp_found === true) {
+            //    break;
+            //}
+
+        }
+
+        // We need to find the handle in all of these (most likely the base route at this point in time)
+
+        // Search through the K-V pairs.  Look for the 'Handle' key.  This is a list
+        //   Search this List for handler 'subroute'
+        //      If it exists, look at the routes list it contains
+        //          Search handle list
+    }
+
+    // Look to expand and use recursion by searching routes and handles.  Can have two separate functions
+
+    function findRPRecursively(routes) {
+        console.log("Searching recursively!");
+        console.log(routes);
+        let rpDictionary = {};
+        for (let r_key in routes) {            
+            for (let h_key in routes[r_key].handle){
+                
+                let handle = routes[r_key].handle[h_key];
+                
+                if (handle.handler === "subroute"){
+                    console.log("Found subroute!");
+                    findRPRecursively(routes[r_key].handle[h_key].routes)
+                }
+                if (handle.handler === 'reverse_proxy'){
+                    console.log("Found reverse proxy!");
+                    console.log(routes)
+                    let host = routes[r_key].match.host;
+                    rpDictionary[host] = handle.upstreams[0].dial;
+                }
+            }
+        }        
+        return rpDictionary
+    }
+
+    
+    // So what we should do: break apart the routes into handlers and matches.  First search the handlers to see if you find subroute or rp.
+    // Then match the array of those upstreams with the match value
+    function findReverseProxies(routes) {
+        
+        let rpArray = [];
+
+        for(r_key in routes) {
+            for (let h_key in routes[r_key].handles) {
+                if (routes[r_key].handles[h_key].handler === 'reverse_proxy') {
+                    for (let u_key in routes[r_key].handles[h_key].upstreams) {
+                        rpArray.push(routes[r_key].handles[h_key].upstreams[u_key].dial);
+                    }
+                }
+            }
+        }
+        
+        return rpArray;
+    }
+
+    function searchBaseRoutes(baseRoutes) {
+        let handles = routes.handle;
+        let matches = routes.match;
+
+        for (let h_key in handles) {
+            console.log(h_key);
+            if (handles[h_key] === 'subroute') {
+                let rp_servers = findReverseProxies(handles[h_key].routes);
+            }
+
+        }
+
+
+    }
+
 </script>
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