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ESPRINTER.ino
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ESPRINTER.ino
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#include <ESP8266WiFi.h>
#include <ESP8266mDNS.h>
#include <DNSServer.h>
#include <ESP8266WebServer.h>
#include <EEPROM.h>
#include <FS.h>
#include <ESP8266SSDP.h>
#include "PooledStrings.cpp"
#define BUTTON_PIN -1
#define MAX_WIFI_FAIL 50
#define MAX_LOGGED_IN_CLIENTS 3
char ssid[32], pass[64], webhostname[64], webpassword[32];
IPAddress sessions[MAX_LOGGED_IN_CLIENTS];
uint8_t loggedInClientsNum = 0;
MDNSResponder mdns;
ESP8266WebServer server(80);
WiFiServer tcp(23);
WiFiClient tcpclient;
String lastResponse;
String serialData;
String fileUploading = "";
String lastUploadedFile = "";
void setup() {
Serial.begin(115200);
delay(20);
EEPROM.begin(512);
delay(20);
#if (BUTTON_PIN > -1)
pinMode(BUTTON_PIN, INPUT_PULLUP);
if (digitalRead(BUTTON_PIN) == LOW) { // Clear wifi config
Serial.println("M117 ESPRINTER ERASE");
EEPROM.put(0, FPSTR(STR_EEPROM_DUMMY));
EEPROM.put(32, FPSTR(STR_EEPROM_DUMMY));
EEPROM.put(32+64+64, FPSTR(STR_EEPROM_DEFAULT_WEBPASSWORD));
EEPROM.commit();
}
#endif
EEPROM.get(0, ssid);
EEPROM.get(32, pass);
EEPROM.get(32+64, webhostname);
EEPROM.get(32+64+64, webpassword);
uint8_t failcount = 0;
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, pass);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
failcount++;
if (failcount % 2 == 0) {
Serial.println("M117 WAIT WIFI " + String(MAX_WIFI_FAIL/2 - (failcount/2)));
}
if (failcount > MAX_WIFI_FAIL) { // 1 min
Serial.println("M117 WIFI ERROR");
WiFi.mode(WIFI_STA);
WiFi.disconnect();
delay(100);
uint8_t num_ssids = WiFi.scanNetworks();
// TODO: NONE? OTHER?
String wifiConfigHtml = F("<html><body><h1>Select your WiFi network:</h1><br /><form method=\"POST\">");
for (uint8_t i = 0; i < num_ssids; i++) {
wifiConfigHtml += "<input type=\"radio\" id=\"" + WiFi.SSID(i) + "\"name=\"ssid\" value=\"" + WiFi.SSID(i) + "\" /><label for=\"" + WiFi.SSID(i) + "\">" + WiFi.SSID(i) + "</label><br />";
}
wifiConfigHtml += F("<label for=\"password\">WiFi Password:</label><input type=\"password\" id=\"password\" name=\"password\" /><br />");
wifiConfigHtml += F("<p><label for=\"webhostname\">ESPrinter Hostname: </label><input type=\"text\" id=\"webhostname\" name=\"webhostname\" value=\"esprinter\"/><br />");
wifiConfigHtml += F("<i>(This would allow you to access your printer by name instead of IP address. I.e. http://esprinter.local/)</i></p>");
wifiConfigHtml += F("<p><label for=\"webpassword\">Web Password:</label><input type=\"password\" id=\"webpassword\" name=\"webpassword\"><br />");
wifiConfigHtml += F("<i>(This is the password for logging into the web interface. Default: \"reprap\")</i></p>");
wifiConfigHtml += F("<input type=\"submit\" value=\"Save and reboot\" /></form></body></html>");
Serial.println("M117 FOUND " + String(num_ssids) + " WIFI");
delay(5000);
DNSServer dns;
IPAddress apIP(192, 168, 1, 1);
WiFi.mode(WIFI_AP);
WiFi.softAPConfig(apIP, apIP, IPAddress(255, 255, 255, 0));
WiFi.softAP("ESPrinter");
Serial.println("M117 WiFi -> ESPrinter");
dns.setErrorReplyCode(DNSReplyCode::NoError);
dns.start(53, "*", apIP);
server.on("/", HTTP_GET, [&wifiConfigHtml]() {
server.send(200, FPSTR(STR_MIME_TEXT_HTML), wifiConfigHtml);
});
server.on("/", HTTP_POST, []() {
if (server.args() <= 0) {
server.send(500, FPSTR(STR_MIME_TEXT_PLAIN), F("Got no data, go back and retry"));
return;
}
for (uint8_t e = 0; e < server.args(); e++) {
String argument = server.arg(e);
urldecode(argument);
if (server.argName(e) == "password") argument.toCharArray(pass, 64);//pass = server.arg(e);
else if (server.argName(e) == "ssid") argument.toCharArray(ssid, 32);//ssid = server.arg(e);
else if (server.argName(e) == "webhostname") argument.toCharArray(webhostname, 64);
else if (server.argName(e) == "webpassword") argument.toCharArray(webpassword, 32);
}
if (String(webpassword) == "") snprintf(webpassword, 32, "%s", FPSTR(STR_EEPROM_DEFAULT_WEBPASSWORD));
EEPROM.put(0, ssid);
EEPROM.put(32, pass);
EEPROM.put(32+64, webhostname);
EEPROM.put(32+64+64, webpassword);
EEPROM.commit();
server.send(200, FPSTR(STR_MIME_TEXT_HTML), F("<h1>All set!</h1><br /><p>(Please reboot me.)</p>"));
Serial.println("M117 SSID: " + String(ssid) + ", PASS: " + String(pass));
delay(50);
ESP.restart();
});
server.begin();
Serial.print(FPSTR(STR_M117));
Serial.println(WiFi.softAPIP().toString());
for (;;) { // THIS ONE IS FOR WIFI AP SETTINGS PAGE
server.handleClient();
dns.processNextRequest();
delay(1);
}
}
}
if (mdns.begin(webhostname, WiFi.localIP())) {
MDNS.addService("http", "tcp", 80);
}
SSDP.setSchemaURL("description.xml");
SSDP.setHTTPPort(80);
SSDP.setName(webhostname);
SSDP.setSerialNumber(WiFi.macAddress());
SSDP.setURL("index.html");
SSDP.begin();
SPIFFS.begin();
server.onNotFound(fsHandler);
server.on("/rr_connect", handleConnect);
server.on("/rr_disconnect", handleDisconnect);
server.on("/rr_status", handleStatus);
server.on("/rr_reply", handleReply);
server.on("/rr_files", handleFiles);
server.on("/rr_gcode", handleGcode);
server.on("/rr_config", handleConfig);
server.on("/rr_upload_begin", handleUploadStart);
server.on("/rr_upload", handleUploadData);
server.on("/rr_upload_end", handleUploadEnd);
server.on("/rr_upload_cancel", handleUploadCancel);
server.on("/rr_delete", handleDelete);
server.on("/rr_fileinfo", handleFileinfo);
server.on("/rr_mkdir", handleMkdir);
server.on("/description.xml", HTTP_GET, [](){SSDP.schema(server.client());});
Serial.print(FPSTR(STR_M117));
Serial.println(WiFi.localIP().toString());
// UNSUPPORTED STUFF
server.on("/rr_move", handleUnsupported);
server.begin();
tcp.begin();
tcp.setNoDelay(true);
}
void loop() {
server.handleClient();
delay(1);
while (Serial.available() > 0) {
char character = Serial.read();
if (character == '\n' || character == '\r') {
if (serialData.startsWith(FPSTR(STR_OK))) {
serialData = "";
continue;
}
tcpclient.write(serialData.c_str(), strlen(serialData.c_str()));
tcpclient.flush();
delay(1);
lastResponse = String(serialData);
serialData = "";
} else {
serialData.concat(character);
}
}
// DISCONNECT ALL IF SOMEONE IS ALLREADY CONNECTED
if (tcp.hasClient()) {
if (tcpclient && tcpclient.connected()) {
WiFiClient otherGuy = tcp.available();
otherGuy.stop();
} else {
tcpclient = tcp.available();
}
}
// PUSH FRESH DATA FROM TELNET TO SERIAL
if (tcpclient && tcpclient.connected()) {
while (tcpclient.available()) {
uint8_t data = tcpclient.read();
tcpclient.write(data); // ECHO BACK TO SEE WHATCHA TYPIN
Serial.write(data);
}
}
}
void fsHandler() {
String path = server.uri();
if (path.endsWith("/")) path += F("index.html");
File dataFile = SPIFFS.open(path, "r");
if (!dataFile) {
server.send(404, FPSTR(STR_MIME_APPLICATION_JSON), "{\"err\": \"404: " + server.uri() + " NOT FOUND\"}");
return;
}
server.sendHeader(FPSTR(STR_CONTENT_LENGTH), String(dataFile.size()));
String dataType = FPSTR(STR_MIME_TEXT_PLAIN);
//if (path.endsWith(".gz")) server.sendHeader(F("Content-Encoding"), "gzip");
if (path.endsWith(".html")) dataType = FPSTR(STR_MIME_TEXT_HTML);
else if (path.endsWith(".css")) dataType = F("text/css");
else if (path.endsWith(".js")) dataType = F("application/javascript");
else if (path.endsWith(".js.gz")) dataType = F("application/javascript");
else if (path.endsWith(".css.gz")) dataType = F("text/css");
else if (path.endsWith(".gz")) dataType = F("application/x-gzip");
server.streamFile(dataFile, dataType);
dataFile.close();
}
void handleConnect() {
String password = "";
if (server.args() > 0) password = server.arg(0);
if (password == String(webpassword)) {
if (!logIn(server.client().remoteIP())) {
// FUBAR, JUST SEND 403
server.send(403, FPSTR(STR_MIME_APPLICATION_JSON), "{\"err\":\"403 NOT AUTHORISED\"}");
return;
}
}
if (isLoggedIn(server.client().remoteIP())) {
server.send(200, FPSTR(STR_MIME_APPLICATION_JSON), FPSTR(STR_JSON_ERR_0));
} else {
// 403 WILL SHOW ERROR IN FROMTEND, BUT 200 WILL PROMPT FOR PASSWORD
server.send(200, FPSTR(STR_MIME_APPLICATION_JSON), "{\"err\":\"WRONG PASSWORD\"}");
}
}
void handleDisconnect() {
logOut(server.client().remoteIP());
server.send(200, FPSTR(STR_MIME_APPLICATION_JSON), FPSTR(STR_JSON_ERR_0));
}
void handleStatus() {
String type = (server.args() < 1) ? "1" : server.arg(0);
Serial.print(FPSTR(STR_M408_S));
Serial.println(type);
Serial.setTimeout(5000); // 2s
serialData = Serial.readStringUntil('\n');
if (serialData.startsWith(FPSTR(STR_OK))) serialData = Serial.readStringUntil('\n');
lastResponse = String(serialData);
server.send(200, FPSTR(STR_MIME_APPLICATION_JSON), lastResponse);
}
void handleReply() {
server.send(200, FPSTR(STR_MIME_TEXT_PLAIN), lastResponse);
}
void handleFiles() {
String dir = "";
if (server.args() > 0) {
dir = server.arg(0);
}
urldecode(dir);
Serial.print(FPSTR(STR_M20_S2_P));
Serial.println(dir);
Serial.setTimeout(5000);
serialData = Serial.readStringUntil('\n');
if (serialData.startsWith(FPSTR(STR_OK))) serialData = Serial.readStringUntil('\n');
lastResponse = String(serialData);
server.send(200, FPSTR(STR_MIME_APPLICATION_JSON), lastResponse);
}
void handleGcode() {
String gcode = "";
if (server.args() > 0) {
gcode = server.arg(0);
} else {
server.send(500, FPSTR(STR_MIME_APPLICATION_JSON), FPSTR(STR_JSON_ERR_500_EMPTY_COMMAND));
return;
}
urldecode(gcode);
Serial.println(gcode);
server.send(200, FPSTR(STR_MIME_APPLICATION_JSON), FPSTR(STR_JSON_BUFF_16));
}
void handleConfig() {
Serial.print(FPSTR(STR_M408_S));
Serial.println('5');
Serial.setTimeout(5000);
serialData = Serial.readStringUntil('\n');
if (serialData.startsWith(FPSTR(STR_OK))) serialData = Serial.readStringUntil('\n');
lastResponse = String(serialData);
server.send(200, FPSTR(STR_MIME_APPLICATION_JSON), lastResponse);
}
void handleUploadStart() {
if (server.args() > 0) {
fileUploading = server.arg(0);
} else {
server.send(500, FPSTR(STR_MIME_APPLICATION_JSON), FPSTR(STR_JSON_ERR_500_NO_FILENAME_PROVIDED));
return;
}
bool compat = false;
if (server.args() > 1) {
compat = (server.arg(1) == FPSTR(STR_TRUE));
}
urldecode(fileUploading);
lastUploadedFile = fileUploading;
// TODO: CHECK FOR VALID SERVER RESPONSE!!!! IMPORTANT!
if (!compat) {
Serial.println(FPSTR(STR_M575_P1_B460800_S0)); // CHANGE BAUDRATE ON 3DPRINTER
Serial.flush();
delay(200);
Serial.end();
delay(200);
Serial.begin(460800);
delay(200);
Serial.flush();
}
Serial.print(FPSTR(STR_M28));
Serial.println(fileUploading);
Serial.flush();
server.send(200, FPSTR(STR_MIME_APPLICATION_JSON), FPSTR(STR_JSON_ERR_0));
}
void handleUploadData() {
if (fileUploading == "") {
server.send(500, FPSTR(STR_MIME_APPLICATION_JSON), FPSTR(STR_JSON_ERR_500_NOT_UPLOADING_FILES));
return;
}
String data = "";
if (server.args() > 0) {
data = server.arg(0);
} else {
server.send(500, FPSTR(STR_MIME_APPLICATION_JSON), FPSTR(STR_JSON_ERR_500_NO_DATA_RECEIVED));
return;
}
urldecode(data);
Serial.println(data);
Serial.flush();
server.send(200, FPSTR(STR_MIME_APPLICATION_JSON), FPSTR(STR_JSON_ERR_0));
}
void handleUploadEnd() {
if (fileUploading == "") {
server.send(500, FPSTR(STR_MIME_APPLICATION_JSON), FPSTR(STR_JSON_ERR_500_NOT_UPLOADING_FILES));
return;
}
bool compat = false;
if (server.args() > 0) {
compat = (server.arg(0) == FPSTR(STR_TRUE));
}
Serial.print(FPSTR(STR_M29));
Serial.println(fileUploading);
if (!compat) {
Serial.println(FPSTR(STR_M575_P1_B115200_S0)); // CHANGE BAUDRATE ON 3DPRINTER
Serial.flush();
delay(200);
Serial.end();
delay(200);
Serial.begin(115200);
delay(200);
Serial.flush();
}
fileUploading = "";
server.send(200, FPSTR(STR_MIME_APPLICATION_JSON), FPSTR(STR_JSON_ERR_0));
}
void handleUploadCancel() {
// IS SENT AFTER UPLOAD END
Serial.print(FPSTR(STR_M30));
Serial.println(lastUploadedFile);
server.send(200, FPSTR(STR_MIME_APPLICATION_JSON), FPSTR(STR_JSON_ERR_0));
}
void handleDelete() {
String fileName = "";
if (server.args() > 0) {
fileName = server.arg(0);
} else {
server.send(500, FPSTR(STR_MIME_APPLICATION_JSON), FPSTR(STR_JSON_ERR_500_NO_FILENAME_PROVIDED));
return;
}
urldecode(fileName);
Serial.print(FPSTR(STR_M30));
Serial.println(fileName);
server.send(200, FPSTR(STR_MIME_APPLICATION_JSON), FPSTR(STR_JSON_ERR_0));
}
void handleFileinfo() {
String fileName = "";
if (server.args() > 0) {
fileName = server.arg(0);
urldecode(fileName);
}
Serial.print(FPSTR(STR_M36));
if (fileName == "") {
Serial.println();
} else {
Serial.println(fileName);
}
Serial.setTimeout(5000);
serialData = Serial.readStringUntil('\n');
if (serialData.startsWith(FPSTR(STR_OK))) serialData = Serial.readStringUntil('\n');
lastResponse = String(serialData);
server.send(200, FPSTR(STR_MIME_APPLICATION_JSON), lastResponse);
}
void handleMkdir() {
String dirName = "";
if (server.args() < 2 || server.arg(1) != FPSTR(STR_TRUE)) { // 2 ARGS FOR COMPATMODE OR NOPE
server.send(200, FPSTR(STR_MIME_APPLICATION_JSON), FPSTR(STR_JSON_ERR_UNSUPPORTED_OPERATION));
return;
}
dirName = server.arg(0);
urldecode(dirName);
if (dirName == "") {
server.send(500, FPSTR(STR_MIME_APPLICATION_JSON), FPSTR(STR_JSON_ERR_500_NO_DIR_NAME_PROVIDED));
return;
}
Serial.print(FPSTR(STR_M32));
Serial.println(dirName);
server.send(200, FPSTR(STR_MIME_APPLICATION_JSON), FPSTR(STR_JSON_ERR_0));
}
void handleUnsupported() {
server.send(200, FPSTR(STR_MIME_APPLICATION_JSON), FPSTR(STR_JSON_ERR_UNSUPPORTED_OPERATION));
}
bool isLoggedIn(IPAddress clientIP) {
for (int i = 0; i < loggedInClientsNum; i++) {
if (sessions[i] == clientIP) {
return true;
}
}
return false;
}
bool logIn(IPAddress clientIP) {
if (loggedInClientsNum < MAX_LOGGED_IN_CLIENTS) {
sessions[loggedInClientsNum] = clientIP;
loggedInClientsNum++;
return true;
}
return false;
}
void logOut(IPAddress clientIP) {
for (int i = 0; i < loggedInClientsNum; i++) {
if (sessions[i] == clientIP) {
for (int e = loggedInClientsNum - 1; e > i; e--) {
// SHIFT ARRAY
memcpy(&sessions[e - 1], &sessions[e], sizeof(IPAddress));
}
loggedInClientsNum--;
return;
}
}
}
void urldecode(String &input) { // LAL ^_^
input.replace("%0A", String('\n'));
input.replace("%20", " ");
input.replace("+", " ");
input.replace("%21", "!");
input.replace("%22", "\"");
input.replace("%23", "#");
input.replace("%24", "$");
input.replace("%25", "%");
input.replace("%26", "&");
input.replace("%27", "\'");
input.replace("%28", "(");
input.replace("%29", ")");
input.replace("%30", "*");
input.replace("%31", "+");
input.replace("%2C", ",");
input.replace("%2E", ".");
input.replace("%2F", "/");
input.replace("%2C", ",");
input.replace("%3A", ":");
input.replace("%3A", ";");
input.replace("%3C", "<");
input.replace("%3D", "=");
input.replace("%3E", ">");
input.replace("%3F", "?");
input.replace("%40", "@");
input.replace("%5B", "[");
input.replace("%5C", "\\");
input.replace("%5D", "]");
input.replace("%5E", "^");
input.replace("%5F", "-");
input.replace("%60", "`");
}