added AP quality

added padlock for secured networks
moved more stuff to PROGMEM

WiFiManager.cpp

@@ -333,8 +333,17 @@ void WiFiManager::handleWifi(bool scan) {
       {
         DEBUG_PRINT(WiFi.SSID(i));
         DEBUG_PRINT(WiFi.RSSI(i));
-        String item = HTTP_ITEM;
+        String item = FPSTR(HTTP_ITEM);
+        String rssiQ;
+        rssiQ += getRSSIasQuality(WiFi.RSSI(i));
         item.replace("{v}", WiFi.SSID(i));
+        item.replace("{r}", rssiQ);
+        if(WiFi.encryptionType(i) != ENC_TYPE_NONE) {
+          item.replace("{i}", FPSTR(HTTP_ITEM_PADLOCK));
+        } else {
+          item.replace("{i}", "");
+        }
+        //DEBUG_PRINT(item);
         server->sendContent(item);
         delay(0);
       }
@@ -436,7 +445,18 @@ void WiFiManager::DEBUG_PRINT(Generic text) {
 }
 
 
+int WiFiManager::getRSSIasQuality(int RSSI) {
+  int quality = 0;
 
+  if(RSSI <= -100){
+        quality = 0;
+  }else if(RSSI >= -50){
+        quality = 100;
+  } else {
+        quality = 2 * (RSSI + 100); 
+  }
+  return quality;
+}
 
 /** Is this an IP? */
 boolean WiFiManager::isIp(String str) {

WiFiManager.h

@@ -26,7 +26,8 @@ const char HTTP_200[] PROGMEM = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\
 const char HTTP_STYLE[] PROGMEM = "<style>div,input {margin-bottom: 5px;} body{width:200px;display:block;margin-left:auto;margin-right:auto;} button{padding:0.75rem 1rem;border:0;border-radius:0.317rem;background-color:#1fa3ec;color:#fff;line-height:1.5;cursor:pointer;}</style>";
 const char HTTP_SCRIPT[] PROGMEM = "<script>function c(l){document.getElementById('s').value=l.innerText||l.textContent;document.getElementById('p').focus();}</script>";
 const char HTTP_HEAD_END[] PROGMEM = "</head><body>";
-//const char HTTP_ITEM[] PROGMEM = "<div><a href='#' onclick='c(this)'>{v}</a></div>";
+const char HTTP_ITEM[] PROGMEM = "<div><a href='#' onclick='c(this)'>{v}</a> {r}% {i}</div>";
+const char HTTP_ITEM_PADLOCK[] PROGMEM = "<img src='data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAMAAAAoLQ9TAAAANlBMVEUAAAD///8AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADl82K3AAAAEXRSTlMAABUbPD94e7G3vcDD5PD5/Mw7MxAAAABQSURBVHgBrck5FoAgEATRBmQBZen7X1acN6KJmRX+gsHMp1qTx8wIBErhBj96dC72sSkc8hC4KzTaCyybAgmJ/IDCVRHgKwVov8KTQOYqw5weJgaXesJX/wAAAABJRU5ErkJggg=='/>";
 const char HTTP_FORM[] PROGMEM = "<form method='get' action='wifisave'><input id='s' name='s' length=32 placeholder='SSID'><input id='p' name='p' length=64 placeholder='password'><br/><button type='submit'>save</button></form>";
 const char HTTP_SAVED[] PROGMEM = "<div>Credentials Saved<br />Trying to connect ESP to network.<br />If it fails reconnect to AP to try again</div>";
 const char HTTP_END[] PROGMEM = "</body></html>";
@@ -71,7 +72,7 @@ private:
     //const String HTTP_STYLE = "<style>div,input {margin-bottom: 5px;} body{width:200px;display:block;margin-left:auto;margin-right:auto;} button{padding:0.75rem 1rem;border:0;border-radius:0.317rem;background-color:#1fa3ec;color:#fff;line-height:1.5;cursor:pointer;}</style>";
     //const String HTTP_SCRIPT = "<script>function c(l){document.getElementById('s').value=l.innerText||l.textContent;document.getElementById('p').focus();}</script>";
     //const String HTTP_HEAD_END = "</head><body>";
-    const String HTTP_ITEM = "<div><a href='#' onclick='c(this)'>{v}</a></div>";
+    //const String HTTP_ITEM = "<div><a href='#' onclick='c(this)'>{v}</a></div>";
     //const String HTTP_FORM = "<form method='get' action='wifisave'><input id='s' name='s' length=32 placeholder='SSID'><input id='p' name='p' length=64 placeholder='password'><br/><button type='submit'>save</button></form>";
     //const String HTTP_SAVED = "<div>Credentials Saved<br />Trying to connect ESP to network.<br />If it fails reconnect to AP to try again</div>";
     //const String HTTP_END = "</body></html>";
@@ -110,7 +111,9 @@ private:
     
     // DNS server
     const byte DNS_PORT = 53;
-    
+
+    //helpers
+    int getRSSIasQuality(int RSSI);
     boolean isIp(String str);
     String toStringIp(IPAddress ip);