Skip to content

Instantly share code, notes, and snippets.

@MkLHX

MkLHX/main.cpp

Created April 30, 2019 16:59
Show Gist options
  • Save MkLHX/1ed02c5fad41523ad1151a60def47cce to your computer and use it in GitHub Desktop.
Save MkLHX/1ed02c5fad41523ad1151a60def47cce to your computer and use it in GitHub Desktop.
Download ZIP
Send Serial printed data in webserver view
Raw
main.cpp
#include "Arduino.h"
#include "WiFi.h"
#include "ESPAsyncWebServer.h"
#include "SPIFFS.h"
const char *ssid = "<yourssid>";
const char *password = "<wpakey>";
AsyncWebServer server_http(80);
void log(String message)
{
Serial.print("incomming message : ");
Serial.println(message);
File file = SPIFFS.open("/logs.txt", FILE_APPEND);
if (!file)
{
Serial.println("There was an error opening the file for writing");
return;
}
if (message.length() > 0)
{
if (!file.println(message))
{
Serial.println("File write failed");
}
file.close();
}
}
#define DEBUGPRINT0(x) \
log(x); \
Serial.print(x);
#define DEBUGPRINTLN0(x) \
log(x); \
Serial.println(x);
const char index_html[] PROGMEM = "<!DOCTYPE html><html><head><meta charset='utf-8'></head><body><h1>Choose Action</h1><ul><li><a href='/logs'>Show logs</a></li><li><a href='/delete'>Delete logs</a></li></ul></body></html>";
static bool logsRemoved = false;
void setup()
{
Serial.begin(115200);
if (!SPIFFS.begin(true))
{
DEBUGPRINTLN0("An Error has occurred while mounting SPIFFS");
return;
}
if (SPIFFS.exists("/logs.txt"))
{
SPIFFS.remove("/logs.txt");
}
log("start writing logs");
WiFi.begin(ssid, password);
while (!WiFi.isConnected())
{
delay(1000);
DEBUGPRINTLN0("Connecting to WiFi..");
}
DEBUGPRINTLN0("Connected to the WiFi network");
DEBUGPRINTLN0(WiFi.localIP());
server_http.onNotFound([](AsyncWebServerRequest *request) {
request->send(400);
});
server_http.on("/", HTTP_GET, [](AsyncWebServerRequest *request) {
request->send(200, "text/html", index_html);
});
server_http.on("/logs", HTTP_GET, [](AsyncWebServerRequest *request) {
AsyncWebServerResponse *response;
String ip = request->client()->remoteIP().toString();
long i = 0;
String fileLine;
String fileContent;
File file = SPIFFS.open("/logs.txt", FILE_READ);
while (file.available())
{
String indexLine = String(i) + ". ";
fileLine = file.readStringUntil('\n');
fileContent += indexLine + fileLine;
i++;
}
file.close();
String logs_html = "<!DOCTYPE html><html><head><meta charset='utf-8'><meta http-equiv='refresh' content='3'/></head><body><h1>Client connected : <strong>" + ip + "</strong></h1><br><a href='/'>Return Home</a><pre style='max-width: 90%;background-color: black; color: white; padding: 20px;'>" + fileContent + "</pre></body></html>";
response = request->beginResponse(200, "text/html", logs_html);
request->send(response);
});
server_http.on("/delete", HTTP_GET, [](AsyncWebServerRequest *request) {
AsyncWebServerResponse *response;
String ip = request->client()->remoteIP().toString();
String delete_logs_html = "<!DOCTYPE html><html><head><meta charset='utf-8'></head><body><h1>Client connected : <strong>" + ip + "</strong></h1><br><a href='/'>Return Home</a><form action='/logs/delete' method='post'><button type='submit'>Delete logs</button></form></body></html>";
response = request->beginResponse(200, "text/html", delete_logs_html);
request->send(response);
});
server_http.on("/delete", HTTP_POST, [](AsyncWebServerRequest *request) {
AsyncWebServerResponse *response = request->beginResponse(200, "text/html", logsRemoved ? "<h1><strong>Logs file removed</strong></h1>" : "<h1><strong>Logs file remove failed</strong></h1>");
response->addHeader("Connection", "close");
request->send(response); }, [](AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final) {}, [](AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total) {
if (SPIFFS.exists("/logs.txt"))
{
logsRemoved = SPIFFS.remove("/logs.txt");
} });
server_http.begin();
}
void loop() {}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment