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Webserver: Add support for filters and removable routes (#2225)
This PR implements filters and removable routes in RP2040 arduino core, making it API compatible with recent changes to ESP32 & ESP8266 WebServer API.
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#include <WiFi.h> | ||
#include <WiFiClient.h> | ||
#include <WebServer.h> | ||
#include <LEAmDNS.h> | ||
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// Your STA WiFi Credentials | ||
// ( This is the AP your RP2040 will connect to ) | ||
const char *ssid = "........"; | ||
const char *password = "........"; | ||
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// Your AP WiFi Credentials | ||
// ( This is the AP your RP2040 will broadcast ) | ||
const char *ap_ssid = "RP2040_Demo"; | ||
const char *ap_password = ""; | ||
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WebServer server(80); | ||
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const int led = LED_BUILTIN; | ||
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// ON_STA_FILTER - Only accept requests coming from STA interface | ||
bool ON_STA_FILTER(HTTPServer &server) { | ||
return WiFi.localIP() == server.client().localIP(); | ||
} | ||
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// ON_AP_FILTER - Only accept requests coming from AP interface | ||
bool ON_AP_FILTER(HTTPServer &server) { | ||
return WiFi.softAPIP() == server.client().localIP(); | ||
} | ||
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void handleNotFound() { | ||
digitalWrite(led, 1); | ||
String message = "File Not Found\n\n"; | ||
message += "URI: "; | ||
message += server.uri(); | ||
message += "\nMethod: "; | ||
message += (server.method() == HTTP_GET) ? "GET" : "POST"; | ||
message += "\nArguments: "; | ||
message += server.args(); | ||
message += "\n"; | ||
for (uint8_t i = 0; i < server.args(); i++) { | ||
message += " " + server.argName(i) + ": " + server.arg(i) + "\n"; | ||
} | ||
server.send(404, "text/plain", message); | ||
digitalWrite(led, 0); | ||
} | ||
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void setup(void) { | ||
pinMode(led, OUTPUT); | ||
digitalWrite(led, 0); | ||
Serial.begin(115200); | ||
WiFi.mode(WIFI_AP_STA); | ||
// Connect to STA | ||
WiFi.begin(ssid, password); | ||
// Start AP | ||
WiFi.softAP(ap_ssid, ap_password); | ||
Serial.println(""); | ||
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// Wait for connection | ||
while (WiFi.status() != WL_CONNECTED) { | ||
delay(500); | ||
Serial.print("."); | ||
} | ||
Serial.println(""); | ||
Serial.print("Connected to "); | ||
Serial.println(ssid); | ||
Serial.print("IP address: "); | ||
Serial.println(WiFi.localIP()); | ||
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if (MDNS.begin("picow")) { | ||
Serial.println("MDNS responder started"); | ||
} | ||
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// This route will be accessible by STA clients only | ||
server.on("/", [&]() { | ||
digitalWrite(led, 1); | ||
server.send(200, "text/plain", "Hi!, This route is accessible for STA clients only"); | ||
digitalWrite(led, 0); | ||
}).setFilter(ON_STA_FILTER); | ||
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// This route will be accessible by AP clients only | ||
server.on("/", [&]() { | ||
digitalWrite(led, 1); | ||
server.send(200, "text/plain", "Hi!, This route is accessible for AP clients only"); | ||
digitalWrite(led, 0); | ||
}).setFilter(ON_AP_FILTER); | ||
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server.on("/inline", []() { | ||
server.send(200, "text/plain", "this works as well"); | ||
}); | ||
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server.onNotFound(handleNotFound); | ||
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server.begin(); | ||
Serial.println("HTTP server started"); | ||
} | ||
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void loop(void) { | ||
server.handleClient(); | ||
MDNS.update(); | ||
} |
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