Create NodeJS configuration script (#2)

2025-08-22 21:02:44 +02:00
parent 204c6dc7c8
commit 31f8e9a8ae
6 changed files with 177 additions and 0 deletions
--- a/api/srv.consult.js
+++ b/api/srv.consult.js
@@ -0,0 +1,109 @@
+let fs = require("fs");
+let http = require("http");
+
+let DST_DIR = "/var/log/consult";
+//let DST_DIR = "/tmp";
+let TEMPLATE_FILE_NAME = "%DIR%/consult_%UUID%";
+let URL_CONSULT = "/api/consult";
+
+let srv = http.createServer((req, res) => {
+    if (req.method == "POST") {
+        var dat = "";
+        req.on("data", (chunk) => {
+            dat += chunk;
+        });
+        req.on("end", () => {
+            // /api/consult
+            if (isConsultationRequestValid(req, dat)) {
+                saveUserContacts(dat);
+                returnSuccess(res);
+            } else {
+                returnError(res);
+            }
+        });
+    } else if (req.method == "OPTIONS") {
+        returnNoCORS(res);
+    } else {
+        returnError(res);
+    }
+});
+
+function isConsultationRequestValid(req, dat) {
+    var json = {};
+    try {
+        json = JSON.parse(dat);
+    } catch (e) {
+        //console.log("ERR isCRV error:", e);
+    }
+
+    if (
+        req.url == URL_CONSULT &&
+        req.method == "POST" &&
+        "name" in json &&
+        "phone" in json
+    ) {
+        return true;
+    }
+
+    return false;
+}
+
+function returnError(res) {
+    res.writeHead(404, { "Content-Type": "text/html" });
+    res.end(`<html>
+<head><title>404 Not Found</title></head>
+<body>
+<center><h1>404 Not Found</h1></center>
+<hr><center>nginx/1.24.0 (Ubuntu)</center>
+</body>
+</html>`);
+}
+
+function returnNoCORS(res) {
+    res.writeHead(
+        204,
+        {
+            "Access-Control-Allow-Headers": "Content-Type",
+            "Access-Control-Allow-Origin": "*",
+            "Content-Length": "0",
+            "Content-Type": "text/plain;charset=UTF-8",
+        }
+    );
+    res.end();
+}
+
+function returnSuccess(res) {
+    res.writeHead(
+        200,
+        { 
+            "Access-Control-Allow-Origin": "*",
+            "Content-Type": "application/json;charset=UTF-8",
+        }
+    );
+    let dat = { code: 4 };
+    res.end(JSON.stringify(dat));
+}
+
+function saveUserContacts(dat) {
+    let fileName = TEMPLATE_FILE_NAME
+        .replaceAll("%DIR%", DST_DIR)
+        .replaceAll("%UUID%", uuidString());
+    fs.writeFile(fileName, dat, (err) => {
+        console.log("ИГР saveUC fileN/err:", fileName, err);
+    });
+}
+
+// https://stackoverflow.com/a/2117523
+function uuidString() {
+    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(
+        /[xy]/g,
+        function(c)
+        {
+            var r = Math.random() * 16 | 0, v = c == 'x' ? r : (r & 0x3 | 0x8);
+            return v.toString(16);
+        }
+    );
+}
+
+// Launch.
+srv.listen(8001);