diff --git a/css/authorize.css b/css/authorize.css
new file mode 100644
index 0000000..9a3e35b
--- /dev/null
+++ b/css/authorize.css
@@ -0,0 +1,21 @@
+button {
+    font-size: 18px;
+    margin: 10px;
+}
+
+.center {
+    text-align: center;
+    margin: auto;
+    width: 50%;
+    border: 3px solid green;
+    padding: 10px;
+}
+
+body {
+    background-color: var(--bg-color);
+    color: var(--text-color);
+}
+
+.hidden {
+    display: none;
+}
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 9d78cae..9d220d0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,6 +17,7 @@
         "express": "^4.18.2",
         "express-fileupload": "^1.3.1",
         "express-useragent": "^1.0.15",
+        "hcaptcha": "^0.1.1",
         "html-minifier-terser": "^7.1.0",
         "lru-cache": "^7.14.1",
         "mysql2": "^3.1.0",
@@ -26,6 +27,9 @@
         "uglify-js": "^3.17.4",
         "unsafe_encrypt": "^1.0.4",
         "ws": "^8.12.0"
+      },
+      "devDependencies": {
+        "@hcaptcha/types": "^1.0.3"
       }
     },
     "node_modules/@colors/colors": {
@@ -80,6 +84,12 @@
         "node": ">=6"
       }
     },
+    "node_modules/@hcaptcha/types": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/@hcaptcha/types/-/types-1.0.3.tgz",
+      "integrity": "sha512-1mbU6eSGawRrqeahRrOzZo/SVLI6oZ5/azuBpSyVrRRR96CnS3fOVDWfzxpngfxKD0/I9Rwu6c/3ITqD8rXeTQ==",
+      "dev": true
+    },
     "node_modules/@jridgewell/gen-mapping": {
       "version": "0.3.2",
       "resolved": "https://registry.npmjs.org/@jridgewell/gen-mapping/-/gen-mapping-0.3.2.tgz",
@@ -1086,6 +1096,11 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/hcaptcha": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/hcaptcha/-/hcaptcha-0.1.1.tgz",
+      "integrity": "sha512-iMrDmH2VpIEKOrcKWidVjI89FdDKTEdZ7PfPWkP27sTazIIkob8YfdY2ezaufAnWBiUUcvzsn0qF+dyXtBH2Vw=="
+    },
     "node_modules/hpack.js": {
       "version": "2.1.6",
       "resolved": "https://registry.npmjs.org/hpack.js/-/hpack.js-2.1.6.tgz",
@@ -2498,6 +2513,12 @@
         "yargs": "^16.2.0"
       }
     },
+    "@hcaptcha/types": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/@hcaptcha/types/-/types-1.0.3.tgz",
+      "integrity": "sha512-1mbU6eSGawRrqeahRrOzZo/SVLI6oZ5/azuBpSyVrRRR96CnS3fOVDWfzxpngfxKD0/I9Rwu6c/3ITqD8rXeTQ==",
+      "dev": true
+    },
     "@jridgewell/gen-mapping": {
       "version": "0.3.2",
       "resolved": "https://registry.npmjs.org/@jridgewell/gen-mapping/-/gen-mapping-0.3.2.tgz",
@@ -3278,6 +3299,11 @@
       "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.0.3.tgz",
       "integrity": "sha512-l3LCuF6MgDNwTDKkdYGEihYjt5pRPbEg46rtlmnSPlUbgmB8LOIrKJbYYFBSbnPaJexMKtiPO8hmeRjRz2Td+A=="
     },
+    "hcaptcha": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/hcaptcha/-/hcaptcha-0.1.1.tgz",
+      "integrity": "sha512-iMrDmH2VpIEKOrcKWidVjI89FdDKTEdZ7PfPWkP27sTazIIkob8YfdY2ezaufAnWBiUUcvzsn0qF+dyXtBH2Vw=="
+    },
     "hpack.js": {
       "version": "2.1.6",
       "resolved": "https://registry.npmjs.org/hpack.js/-/hpack.js-2.1.6.tgz",
diff --git a/package.json b/package.json
index 9479974..1af5c39 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
     "express": "^4.18.2",
     "express-fileupload": "^1.3.1",
     "express-useragent": "^1.0.15",
+    "hcaptcha": "^0.1.1",
     "html-minifier-terser": "^7.1.0",
     "lru-cache": "^7.14.1",
     "mysql2": "^3.1.0",
@@ -36,5 +37,8 @@
   "bugs": {
     "url": "https://github.com/002Hub/IPost/issues"
   },
-  "homepage": "https://github.com/002Hub/IPost#readme"
+  "homepage": "https://github.com/002Hub/IPost#readme",
+  "devDependencies": {
+    "@hcaptcha/types": "^1.0.3"
+  }
 }
diff --git a/routes/api/all.js b/routes/api/all.js
index 4ce6f88..a72e15a 100644
--- a/routes/api/all.js
+++ b/routes/api/all.js
@@ -18,7 +18,7 @@ export const setup = function (router, con, server) {
                     console.log("error parsing header",err)
                 }
             }
-            if(req.body.auth != undefined) {
+            if(req.body.auth !== undefined && req.originalUrl!=="/redeemauthcode") {
                 if(typeof req.body.auth === "string") {
                     try{
                         req.body.auth = JSON.parse(req.body.auth)
diff --git a/routes/authorize.js b/routes/authorize.js
new file mode 100644
index 0000000..28b6ba6
--- /dev/null
+++ b/routes/authorize.js
@@ -0,0 +1,125 @@
+import {randomBytes} from "crypto"
+import {SHA256} from "../extra_modules/SHA.js";
+import {unsign} from "../extra_modules/unsign.js";
+
+export const setup = function (router, con, server) {
+    const temp_code_to_token = {}
+    router.post("/authorize",async (req,res) => {
+        if (!unsign(req.cookies.AUTH_COOKIE, req, res)){
+            return
+        }
+
+        let data = await server.hcaptcha.verify(req.body["h-captcha-response"])
+
+        if(data.success) {
+
+            console.log("captcha success")
+
+            let appid = req.body.application_id
+            if(typeof appid === "string") {
+                appid = Number(appid)
+            }
+            if(typeof appid === "number") {
+
+                const token = randomBytes(150).toString("base64")
+                
+                let tokencode;
+                while(tokencode===undefined || temp_code_to_token[tokencode]!==undefined) {
+                    tokencode = randomBytes(15).toString("base64")
+                }
+                temp_code_to_token[tokencode]={
+                    "userid":res.locals.userid,
+                    "appid":appid,
+                    "token":token
+                }
+                setTimeout(() => {
+                    let data = temp_code_to_token[tokencode]
+                    if(data !== undefined && data.token===token && data.appid === appid && data.userid === userid) {
+                        temp_code_to_token[tokencode]=undefined
+                    }
+                }, 300000); //wait for 5 minutes
+
+                const sql = "SELECT application_auth_url FROM ipost.application where application_id=?"
+
+                con.query(sql,[appid],(err,result) => {
+                    if(err || result.length !== 1) {
+                        console.err(err)
+                        res.redirect(`/authorize?id=${req.body.application_id}`)
+                        return
+                    }
+                    res.redirect(`${result[0].application_auth_url}?code=${tokencode}`)
+                })
+
+                
+                
+                return
+            }
+        }
+
+        res.redirect(`/authorize?id=${req.body.application_id}`)
+    })
+
+    router.post("/redeemauthcode", (req,res) => {
+
+        if(temp_code_to_token[req.body.authcode]===undefined) {
+            res.status(400)
+            res.json({"status":400,"message":"invalid code given"})
+            return
+        }
+
+        if(typeof req.body.auth === "string") {
+            try{
+                req.body.auth = JSON.parse(req.body.auth)
+            } catch(err) {
+                console.log("error parsing",err)
+            }
+        } 
+        if(
+            typeof req.body.auth            !== "object" || 
+            typeof req.body.auth.secret     !== "string" || 
+            typeof req.body.auth.appid      !== "number" || 
+            req.body.auth.secret.length     !== 200      || 
+            Buffer.from(req.body.auth.secret,"base64").length !== 150 ||
+            req.body.auth.appid !== temp_code_to_token[req.body.authcode].appid
+        ) {
+            //console.log(1,req.body.auth,temp_code_to_token[req.body.authcode].appid)
+            res.status(420).send("invalid authentication object")
+            return;
+        }
+
+        const appid = req.body.auth.appid
+
+        const checksecret = SHA256(req.body.auth.secret,appid,10000)
+
+        const checksql = "SELECT application_id from ipost.application where application_secret=? and application_id=?"
+        const checkvalues = [checksecret,appid]
+
+        con.query(checksql,checkvalues,(error,result_object) => {
+
+            if(error || result_object[0]===undefined || result_object[0].application_id!==appid) {
+                res.status(400)
+                res.json({"status":400,"message":"invalid code given"})
+                return
+            }
+
+            let data = temp_code_to_token[req.body.authcode]
+            temp_code_to_token[req.body.authcode] = undefined
+            
+            
+            const sql = "INSERT INTO `ipost`.`auth_tokens`(`auth_token`,`auth_token_u_id`,`auth_token_isfrom_application_id`) VALUES(?,?,?);"
+            
+            const values = [SHA256(data.token,appid,10000),data.userid,data.appid] //token,id,appid
+            con.query(sql,values,(err,result) => {
+                if(err) {
+                    res.json({"status":500,"message":"error redeeming code"})
+                    console.err(err)
+                } else {
+                    res.json({"status":200,"message":"successfully redeemed code","token":data.token})
+                }
+            })
+        })
+
+        
+    
+    })
+}
\ No newline at end of file
diff --git a/routes/setup_all_routes.js b/routes/setup_all_routes.js
index 52f6486..8dd4d4d 100644
--- a/routes/setup_all_routes.js
+++ b/routes/setup_all_routes.js
@@ -11,6 +11,7 @@ import { setup as userroutessetup } from "./api/userRoutes.js";
 import { setup as servefilessetup} from "./serve_static_files.js"
 import { setup as userfilessetup} from "./userfiles.js"
 import { setup as userauthsetup} from "./user_auth.js"
+import { setup as applicationsetup} from "./authorize.js"
 
 export const setup = function (router, con, server) {
     const setuproute = handler => handler(router,con,server)
@@ -34,4 +35,6 @@ export const setup = function (router, con, server) {
     setuproute(userfilessetup) //needs getPID and getDMPID
     
     setuproute(userauthsetup) //login & register
+
+    setuproute(applicationsetup)
 }
\ No newline at end of file
diff --git a/routes/userfiles.js b/routes/userfiles.js
index c8880a8..59a5887 100644
--- a/routes/userfiles.js
+++ b/routes/userfiles.js
@@ -80,7 +80,8 @@ export const setup = function (router, con, server) {
         newrelic: load_var("./extra_modules/newrelic_monitor.html"),
         getPID: server.global_page_variables.getPID,
         getDMPID: server.global_page_variables.getDMPID,
-        unauthorized_description: "Chat now by creating an account on IPost"
+        unauthorized_description: "Chat now by creating an account on IPost",
+        hcaptcha_sitekey: server.hcaptcha.sitekey
     }
 
     
diff --git a/server.js b/server.js
index df8fac0..3d6c764 100644
--- a/server.js
+++ b/server.js
@@ -13,6 +13,7 @@ import {unsign} from "./extra_modules/unsign.js";
 import { readFileSync, appendFile } from "fs";
 import { format } from "util";
 import { setup as SETUP_ROUTES} from "./routes/setup_all_routes.js"
+import { verify as verifyHCaptcha_int } from "hcaptcha"
 
 import { ensureExists } from "./extra_modules/ensureExists.js"
 
@@ -58,6 +59,13 @@ function log_info(level, ...info) {
 }
 console.log = log_info;
 
+
+const hcaptcha_secret = config.hcaptcha_secret
+// wrapper for the HCaptcha verify function
+function verifyHCaptcha(token) {
+    return verifyHCaptcha_int(hcaptcha_secret,token,undefined,config.hcaptcha_sitekey)
+}
+
 const WebSocket = ws.WebSocketServer;
 
 const router = Router();
@@ -259,7 +267,7 @@ app.use(bodyParser.default.json({ limit: "100mb" }));
 app.use(bodyParser.default.urlencoded({ limit: "100mb", extended: true }));
 app.use(cookieParser(cookiesecret));
 app.use(compression())
-var blocked_headers = [
+let blocked_headers = [
     'HTTP_VIA',
     'HTTP_X_FORWARDED_FOR',
     'HTTP_FORWARDED_FOR',
@@ -334,7 +342,11 @@ var commonfunctions = {
     ensureExists,
     "dirname": __dirname,
     config,
-    DID_I_FINALLY_ADD_HTTPS
+    DID_I_FINALLY_ADD_HTTPS,
+    hcaptcha: {
+        "verify":verifyHCaptcha,
+        "sitekey":config.hcaptcha_sitekey
+    }
 };
 
 SETUP_ROUTES(router,con,commonfunctions)
diff --git a/server_config.json b/server_config.json
index 7dc96c1..fdddc9f 100644
--- a/server_config.json
+++ b/server_config.json
@@ -155,12 +155,14 @@
     "level": 5
   },
   "ssl": {
-    "privateKey": "/etc/letsencrypt/live/ipost.rocks/privkey.pem",
-    "certificate" : "/etc/letsencrypt/live/ipost.rocks/cert.pem"
+    "privateKey": "./etc/letsencrypt/live/ipost.rocks/privkey.pem",
+    "certificate" : "./etc/letsencrypt/live/ipost.rocks/fullchain.pem"
   },
   "ports": {
     "http": 9999,
     "https": 9998
   },
-  "disallow_proxies_by_headers": true
+  "disallow_proxies_by_headers": true,
+  "hcaptcha_secret": "0x0000000000000000000000000000000000000000",
+  "hcaptcha_sitekey": "10000000-ffff-ffff-ffff-000000000001"
 }
diff --git a/views/authorize.html b/views/authorize.html
new file mode 100644
index 0000000..e21ed52
--- /dev/null
+++ b/views/authorize.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <% if(user.username === undefined) { %>
+      <meta name="description" content="<%-unauthorized_description%>">
+    <% } else { %>
+      <meta name="description" content="IPost Extension Authorization Page">
+    <% } %>
+    <title>Authorize App</title>
+    <style>
+      <%- globalcss %>
+      <%- loadfile("./css/authorize.css") %>
+    </style>
+    <% if(user.username === undefined) { %>
+      <script> document.location.href = '/no_login?r='+encodeURIComponent(document.location.pathname) </script>
+    <% } else { %>
+        <script src="https://js.hcaptcha.com/1/api.js" async defer></script>
+    <% } %>
+  </head>
+  <body>
+    <div class="center">
+        <h1>Authorize App</h1>
+        <p>Please authorize the app to access your information:</p>
+        <form action="/authorize" method="post">
+            <input type="number" value=<%- query.id %> class="hidden" name="application_id" id="application_id">
+            <div class="h-captcha" data-sitekey="<%- hcaptcha_sitekey %>"></div>
+            <input type="submit" value="Authorize">
+        </form>
+    </div>
+  </body>
+</html>