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LittleFS.ino
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LittleFS.ino
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// ****************************************************************
// Sketch Esp8266 Filesystem Manager spezifisch sortiert Modular(Tab)
// created: Jens Fleischer, 2020-06-08
// last mod: Jens Fleischer, 2020-12-19
// For more information visit: https://fipsok.de
// ****************************************************************
// Hardware: Esp8266
// Software: Esp8266 Arduino Core 2.7.0 - 3.0.2
// Geprüft: von 1MB bis 2MB Flash
// Getestet auf: Nodemcu
/******************************************************************
Copyright (c) 2020 Jens Fleischer. All rights reserved.
This file is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This file is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
*******************************************************************/
// Diese Version von LittleFS sollte als Tab eingebunden werden.
// #include <LittleFS.h> #include <ESP8266WebServer.h> müssen im Haupttab aufgerufen werden
// Die Funktionalität des ESP8266 Webservers ist erforderlich.
// "server.onNotFound()" darf nicht im Setup des ESP8266 Webserver stehen.
// Die Funktion "setupFS();" muss im Setup aufgerufen werden.
/**************************************************************************************/
#include <list>
#include <tuple>
const char WARNING[] PROGMEM = R"(<h2>Der Sketch wurde mit "FS:none" kompilliert!)";
const char HELPER[] PROGMEM = R"(<form method="POST" action="/upload" enctype="multipart/form-data">
<input type="file" name="[]" multiple><button>Upload</button></form>Lade die fs.html hoch.)";
void setupFS() { // Funktionsaufruf "setupFS();" muss im Setup eingebunden werden
LittleFS.begin();
server.on("/format", formatFS);
server.on("/upload", HTTP_POST, sendResponce, handleUpload);
server.onNotFound([]() {
if (!handleFile(server.urlDecode(server.uri())))
server.send(404, "text/plain", "FileNotFound");
});
}
bool handleList() { // Senden aller Daten an den Client
FSInfo fs_info; LittleFS.info(fs_info); // Füllt FSInfo Struktur mit Informationen über das Dateisystem
Dir dir = LittleFS.openDir("/");
using namespace std;
using records = tuple<String, String, int>;
list<records> dirList;
while (dir.next()) { // Ordner und Dateien zur Liste hinzufügen
if (dir.isDirectory()) {
uint8_t ran {0};
Dir fold = LittleFS.openDir(dir.fileName());
while (fold.next()) {
ran++;
dirList.emplace_back(dir.fileName(), fold.fileName(), fold.fileSize());
}
if (!ran) dirList.emplace_back(dir.fileName(), "", 0);
}
else {
dirList.emplace_back("", dir.fileName(), dir.fileSize());
}
}
dirList.sort([](const records & f, const records & l) { // Dateien sortieren
if (server.arg(0) == "1") {
return get<2>(f) > get<2>(l);
} else {
for (uint8_t i = 0; i < 31; i++) {
if (tolower(get<1>(f)[i]) < tolower(get<1>(l)[i])) return true;
else if (tolower(get<1>(f)[i]) > tolower(get<1>(l)[i])) return false;
}
return false;
}
});
dirList.sort([](const records & f, const records & l) { // Ordner sortieren
if (get<0>(f)[0] != 0x00 || get<0>(l)[0] != 0x00) {
for (uint8_t i = 0; i < 31; i++) {
if (tolower(get<0>(f)[i]) < tolower(get<0>(l)[i])) return true;
else if (tolower(get<0>(f)[i]) > tolower(get<0>(l)[i])) return false;
}
}
return false;
});
String temp = "[";
for (auto& t : dirList) {
if (temp != "[") temp += ',';
temp += "{\"folder\":\"" + get<0>(t) + "\",\"name\":\"" + get<1>(t) + "\",\"size\":\"" + formatBytes(get<2>(t)) + "\"}";
}
temp += ",{\"usedBytes\":\"" + formatBytes(fs_info.usedBytes) + // Berechnet den verwendeten Speicherplatz
"\",\"totalBytes\":\"" + formatBytes(fs_info.totalBytes) + // Zeigt die Größe des Speichers
"\",\"freeBytes\":\"" + (fs_info.totalBytes - fs_info.usedBytes) + "\"}]"; // Berechnet den freien Speicherplatz
server.send(200, "application/json", temp);
return true;
}
void deleteRecursive(const String &path) {
if (LittleFS.remove(path)) {
LittleFS.open(path.substring(0, path.lastIndexOf('/')) + "/", "w");
return;
}
Dir dir = LittleFS.openDir(path);
while (dir.next()) {
deleteRecursive(path + '/' + dir.fileName());
}
LittleFS.rmdir(path);
}
bool handleFile(String &&path) {
if (server.hasArg("new")) {
String folderName {server.arg("new")};
for (auto& c : {34, 37, 38, 47, 58, 59, 92}) for (auto& e : folderName) if (e == c) e = 95; // Ersetzen der nicht erlaubten Zeichen
LittleFS.mkdir(folderName);
}
if (server.hasArg("sort")) return handleList();
if (server.hasArg("delete")) {
deleteRecursive(server.arg("delete"));
sendResponce();
return true;
}
if (!LittleFS.exists("fs.html")) server.send(200, "text/html", LittleFS.begin() ? HELPER : WARNING); // ermöglicht das hochladen der fs.html
if (path.endsWith("/")) path += "index.html";
if (path == "/spiffs.html") sendResponce(); // Vorrübergehend für den Admin Tab
return LittleFS.exists(path) ? ({File f = LittleFS.open(path, "r"); server.streamFile(f, mime::getContentType(path)); f.close(); true;}) : false;
}
void handleUpload() { // Dateien ins Filesystem schreiben
static File fsUploadFile;
HTTPUpload& upload = server.upload();
if (upload.status == UPLOAD_FILE_START) {
if (upload.filename.length() > 31) { // Dateinamen kürzen
upload.filename = upload.filename.substring(upload.filename.length() - 31, upload.filename.length());
}
printf(PSTR("handleFileUpload Name: /%s\n"), upload.filename.c_str());
fsUploadFile = LittleFS.open(server.arg(0) + "/" + server.urlDecode(upload.filename), "w");
} else if (upload.status == UPLOAD_FILE_WRITE) {
printf(PSTR("handleFileUpload Data: %u\n"), upload.currentSize);
fsUploadFile.write(upload.buf, upload.currentSize);
} else if (upload.status == UPLOAD_FILE_END) {
printf(PSTR("handleFileUpload Size: %u\n"), upload.totalSize);
fsUploadFile.close();
}
}
void formatFS() { // Formatiert das Filesystem
LittleFS.format();
sendResponce();
}
void sendResponce() {
server.sendHeader("Location", "fs.html");
server.send(303, "message/http");
}
const String formatBytes(size_t const& bytes) { // lesbare Anzeige der Speichergrößen
return bytes < 1024 ? static_cast<String>(bytes) + " Byte" : bytes < 1048576 ? static_cast<String>(bytes / 1024.0) + " KB" : static_cast<String>(bytes / 1048576.0) + " MB";
}