You are connected through the soft AP: ")) + softAP_ssid + F("
"); } else { Page += String(F("You are connected through the wifi network: ")) + ssid + F("
"); } Page += F( "You may want to config the wifi connection.
" ""); server.send(200, F("text/html"), Page); } /* Redirect to the captive portal if we got a request for another domain. Return true in that case, so the page handler does not try to handle the request again. */ boolean captivePortal() { IPAddress hAddr, cAddr; cAddr = server.client().localIP(); if (!cAddr.isSet()) { // The connection closed prematurely on us. // Return true, so no further action is taken. return true; } if (hAddr.fromString(server.hostHeader()) && hAddr == cAddr) { return false; } if (hAddr.isSet() || (server.hostHeader() != (String(myHostname) + ".local") && // arrived here by mDNS server.hostHeader() != String(myHostname))) { // arrived here by local router DNS String whereTo = String("http://") + server.client().localIP().toString(); sendPortalRedirect(whereTo, F("Captive Portal Example")); return true; } return false; } /** Wifi Details and Config page handler */ void handleWifi() { addNoCacheHeader(); // use HTTP/1.1 Chunked response to avoid building a huge temporary string if (!server.chunkedResponseModeStart(200, F("text/html"))) { server.send(505, F("text/plain"), F("HTTP1.1 required")); return; } // Send a few chunks of the HTML that don't need to change. sendAsChunks_P(configHead); String page; CONSOLE_PRINTLN2("sizeof(configHead): ", (sizeof(configHead))); CONSOLE_PRINTLN2("sizeof(configWLANInfo): ", (sizeof(configWLANInfo))); CONSOLE_PRINTLN2("sizeof(configList): ", (sizeof(configList))); CONSOLE_PRINTLN2("sizeof(configEnd): ", (sizeof(configEnd))); // Just do max on some of the visually larger HTML chunks that will be loaded // into page and add a little for growth when substituting values in. size_t thisMany = std::max(sizeof(configWLANInfo), sizeof(configList)) + 200; CONSOLE_PRINTLN2("Estimate Minimum page reserve size: ", (thisMany)); page.reserve(std::max(kMaxChunkSize, thisMany)); page = FPSTR(configPresetInput); /* Set previously used/entered credentials as a default entries. This allows an opportunity to correct them and try again. */ page.replace("{s}", String(ssid)); page.replace("{p}", String(password)); sendIfOver(page); page += FPSTR(configConnection); if (server.client().localIP() == apIP) { page.replace("{w}", String(F("SoftAP: ")) + softAP_ssid); } else { page.replace("{w}", String(F("WiFi Network: ")) + ssid); } /* To avoid sending lots of small packets. We call this function frequently, to check if the 'page' has gone over 512 bytes and if so send. */ sendIfOver(page); page += FPSTR(configAPInfo); { uint8_t sta_cnt = wifi_softap_get_station_num(); page.replace("{s}", String(softAP_ssid)); page.replace("{b}", String(WiFi.softAPmacAddress())); page.replace("{i}", WiFi.softAPIP().toString()); page.replace("{a}", String(sta_cnt)); sendIfOver(page); if (sta_cnt) { page += String(F("\r\n\r\n"));
struct station_info* info = wifi_softap_get_station_info();
IPAddress addr;
while (info != NULL) {
addr = info->ip;
page += macToString(info->bssid) + F(" ") + addr.toString() + F("\r\n");
info = STAILQ_NEXT(info, next);
sendIfOver(page);
}
page += F("\r\n");
}
}
/*
Before we prepare a large block for sending, we call 'sendIfOver' with a
threshold of 0 to force the sending of the current 'page' content.
*/
if (WiFi.localIP().isSet()) {
sendIfOver(page, 0);
page += FPSTR(configWLANInfo);
page.replace("{s}", String(ssid));
page.replace("{b}", macToString(bssid));
page.replace("{c}", String(WiFi.channel()));
page.replace("{p}", String(F("802.11")) + (getPhyModeChar(WiFi.getPhyMode())));
page.replace("{r}", String(WiFi.RSSI()));
page.replace("{i}", WiFi.localIP().toString());
page.replace("{g}", WiFi.gatewayIP().toString());
page.replace("{m}", WiFi.subnetMask().toString());
page.replace("{1}", WiFi.dnsIP(0).toString());
page.replace("{2}", WiFi.dnsIP(1).toString());
} else {
page += FPSTR(configWLANOffline);
}
sendIfOver(page, 0);
sendAsChunks_P(configList);
CONSOLE_PRINTLN("scan start");
int n = WiFi.scanNetworks();
CONSOLE_PRINTLN("scan done");
if (n > 0) {
for (size_t i = 0; i < (size_t)n; i++) {
page += FPSTR(configItem);
page.replace("{s}", WiFi.SSID(i));
page.replace("{t}", WiFi.BSSIDstr(i));
page.replace("{c}", String(WiFi.channel(i)));
page.replace("{l}", (WiFi.encryptionType(i) == ENC_TYPE_NONE) ? F("") : F("🔒"));
page.replace("{r}", String(WiFi.RSSI(i)));
sendIfOver(page);
}
} else {
page += FPSTR(configNoAPs);
}
sendIfOver(page, 0); // send what we have buffered before next direct send.
sendAsChunks_P(configEnd);
CONSOLE_PRINTLN2("MAX String memory used: ", (maxPage));
server.chunkedResponseFinalize();
}
/** Handle the WLAN save form and redirect to WLAN config page again */
void handleWifiSave() {
CONSOLE_PRINTLN("wifi save");
server.arg("n").toCharArray(ssid, sizeof(ssid) - 1);
server.arg("p").toCharArray(password, sizeof(password) - 1);
sendPortalRedirect(F("wifi"), F("Wifi Config"));
saveCredentials();
connect = strlen(ssid) > 0; // Request WLAN connect with new credentials if there is a SSID
}
void handleNotFound() {
if (captivePortal()) { // If captive portal redirect instead of displaying the error page.
return;
}
String message = F("File Not Found\r\n\r\n");
message += F("URI: ");
message += server.uri();
message += F("\r\nMethod: ");
message += (server.method() == HTTP_GET) ? "GET" : "POST";
message += F("\r\nArguments: ");
message += server.args();
message += F("\r\n");
for (uint8_t i = 0; i < server.args(); i++) {
message += String(F(" ")) + server.argName(i) + F(": ") + server.arg(i) + F("\r\n");
}
addNoCacheHeader();
server.send(404, F("text/plain"), message);
}
#endif // LWIP_FEATURES && !LWIP_IPV6