renamed some files, first steps with wifi settings post

Arduino/CanGrow/include/CanGrow_Webserver.h

@@ -37,7 +37,7 @@
  */
 #include "Webserver/Header.h"
 #include "Webserver/Footer.h"
-#include "Webserver/AddHeaderFooter.h"
+#include "Webserver/Common.h"
 
 #include "Webserver/Page_root.h"
 
@@ -53,6 +53,7 @@ LoggingMiddleware requestLogger;
  * 404 error page begins
  */
 
+// 404 page is a good page template btw
 const char* Page_404_HTML PROGMEM = R"(%HEADER%
 <div class='warnmsg'><h1>&#10071; &#65039; 404 - not found</h1></div>
 %FOOTER%)";
@@ -83,6 +84,7 @@ void SetupWebserver() {
   webserver.on("/", HTTP_GET, WebPage_root);
   webserver.on("/cangrow.css", HTTP_GET, WebFile_cangrow_CSS);
   webserver.on("/wifiSettings", HTTP_GET, WebPage_wifi);
+  webserver.on("/wifiSettings", HTTP_POST, WebPage_wifi);
   
   requestLogger.setOutput(Serial);
   // this activates the middleware
@@ -100,7 +102,7 @@ void SetupWebserver() {
   // call the network scan once, so there are some values at the first call
   // of the wifi settings page. otherwise the first call of the wifi scan would return
   // an empty list of networks
-  Serial.println(":: [Webserver] call [wifi:ScanNetworks] to workaround empty results bug");
+  Serial.println(":: [Webserver] call [wifi:ScanNetworks] to workaround empty scan results bug");
   WebPage_wifi_ScanNetworks();
 
   webserver.begin();

Arduino/CanGrow/include/Webserver/Common.h

@@ -1,6 +1,6 @@
 /*
  * 
- * include/Webserver/AddHeaderFooter.h - header file with functions to add
+ * include/Webserver/Common.h - header file with common webserver functions
  * HTML header or footer to a String()
  * 
  * 
@@ -28,6 +28,7 @@
  *
  */
 
+#include "Common_HTML.h"
 
 bool TestHeaderFooter(const String& var) {
   #ifdef DEBUG

Arduino/CanGrow/include/Webserver/Common_HTML.h

@@ -0,0 +1,34 @@
+/*
+ * 
+ * include/Webserver/Common_HTML.h - header file with common HTML snippets
+ * HTML header or footer to a String()
+ * 
+ * 
+ * MIT License
+ * 
+ * Copyright (c) 2024 DeltaLima
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to 
+ * deal in the Software without restriction, including without limitation the 
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 
+ * sell copies of the Software, and to permit persons to whom the Software is 
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in 
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 
+ * THE SOFTWARE.
+ *
+ */
+
+
+const char Common_HTML_SAVE_MSG[] PROGMEM = R"EOF(
+<div class='infomsg'>&#x2705; Successfully saved!</div>
+)EOF";

Arduino/CanGrow/include/Webserver/Page_wifi.h

@@ -41,7 +41,7 @@ String WebPage_wifi_ScanNetworks() {
   } else if(n){
     for (int i = 0; i < n; ++i){
       html += "<option value='" + WiFi.SSID(i) + "'>" + WiFi.SSID(i) + "</option>";
-      Serial.print(":: [Webserver:wifi:ScanNetworks]   - ");
+      Serial.print(":: [Webserver:wifi:ScanNetworks]  - ");
       Serial.println(WiFi.SSID(i));
     }
     WiFi.scanDelete();
@@ -82,6 +82,21 @@ String Proc_WebPage_wifi(const String& var) {
   }
 }
 
-void WebPage_wifi(AsyncWebServerRequest *request) { 
+
-  request->send_P(200, "text/html", Page_wifi_HTML, Proc_WebPage_wifi);
+String Proc_WebPage_wifi_POST(const String& var) {
+  if(var == "SAVE_MSG") {
+    return String(Common_HTML_SAVE_MSG);
+  } else {
+      return Proc_WebPage_wifi(var);
+  }  
+}
+
+void WebPage_wifi(AsyncWebServerRequest *request) {
+  if(request->hasParam("configWifi.ssid", true)) {
+    const AsyncWebParameter* p = request->getParam("configWifi.ssid", true);
+    Serial.printf(":: [Webserver:wifi] POST[%s]: %s\n", p->name().c_str(), p->value().c_str());
+    request->send_P(200, "text/html", Page_wifi_HTML, Proc_WebPage_wifi_POST);
+  } else {
+    request->send_P(200, "text/html", Page_wifi_HTML, Proc_WebPage_wifi);
+  }
 }

Arduino/CanGrow/include/Webserver/Page_wifi_HTML.h

@@ -29,9 +29,10 @@
 
 const char* Page_wifi_HTML PROGMEM = R"(%HEADER%
 <h2>&#128225; WiFi settings</h2>
+%SAVE_MSG%
 %CURRENT_SETTINGS%
 <p>Select your wifi network from the SSID list.
-<br>To use DHCP leave IP, Subnet, Gateway and DNS fields blank!</p>
+<br>Reload the page, if your network is not listed.</p>
 <form method='post' action='/wifiSettings/save'>
 SSID: <select id='configWifi.ssid' name='configWifi.ssid' required>
 <option disabled value='' selected hidden>-Select your network-</option>
@@ -42,6 +43,7 @@ IP: <input type='text' name='configWifi.ip'><br>
 Subnet mask: <input type='text' name='configWifi.netmask'><br>
 Gateway: <input type='text' name='configWifi.gateway'><br>
 DNS: <input type='text' name='configWifi.dns'><br>
+DHCP: <input type='checkbox' name='configWifi.dhcp' value='1'><br>
 <input type='submit' value='&#x1F4BE; Save settings'>
 </form>
 %FOOTER%)";