serve_spiffs_file.cpp

#include "serve_spiffs_file.h"

#include <ESP8266WebServer.h>
#include <FS.h>

String getContentType(ESP8266WebServer &server, String filename) {
  if (server.hasArg("download")) {
    return "application/octet-stream";
  } else if (filename.endsWith(".htm")) {
    return "text/html";
  } else if (filename.endsWith(".html")) {
    return "text/html";
  } else if (filename.endsWith(".css")) {
    return "text/css";
  } else if (filename.endsWith(".js")) {
    return "application/javascript";
  } else if (filename.endsWith(".json")) {
    return "application/json";
  } else if (filename.endsWith(".png")) {
    return "image/png";
  } else if (filename.endsWith(".gif")) {
    return "image/gif";
  } else if (filename.endsWith(".jpg")) {
    return "image/jpeg";
  } else if (filename.endsWith(".ico")) {
    return "image/x-icon";
  } else if (filename.endsWith(".xml")) {
    return "text/xml";
  } else if (filename.endsWith(".pdf")) {
    return "application/x-pdf";
  } else if (filename.endsWith(".zip")) {
    return "application/x-zip";
  } else if (filename.endsWith(".gz")) {
    return "application/x-gzip";
  }
  return "text/plain";
}

void serveSPIFFSFile(ESP8266WebServer &server, String path) {
  if (path.endsWith("/")) {
    path += "index.html";
  }
  String contentType = getContentType(server, path);
  String pathWithGz = path + ".gz";
  if (SPIFFS.exists(pathWithGz) || SPIFFS.exists(path)) {
    if (SPIFFS.exists(pathWithGz)) {
      path += ".gz";
    }
    File file = SPIFFS.open(path, "r");
    server.streamFile(file, contentType);
    file.close();
  }

  server.send(404, "text/plain", path + " - FileNotFoundinSPIFFS");
}