/**
* Wait for a WiFiClient to connect
*
* @returns: True if the client is ready, false otherwise.
*
*/
bool ESP8266WiFiMesh::waitForClient(WiFiClient curr_client, int max_wait)
{
int wait = max_wait;
while(curr_client.connected() && !curr_client.available() && wait--)
delay(3);
/* Return false if the client isn't ready to communicate */
if (WiFi.status() == WL_DISCONNECTED || !curr_client.connected())
return false;
return true;
}
void Farmy::sendData(const char* device_id, String api_key, WiFiClient client, String data)
{
// Todo: use retry to connect internet.
Serial.println("Connected to Famry.");
Serial.println("Posted:" + data);
// Create HTTP POST Data
String url = String("/api/v0/user_devices/") + device_id + "/sensor_datas/";
client.print(String("POST ") + url + " HTTP/1.1\n"+ "Host: " + host + "\n");
client.print(String("Host: ") + host + "\n");
client.print("Content-Type: application/json\n");
client.print(String("X-Farmy-Api-Key: ") + api_key + "\n");
client.print("Content-Length: ");
client.print(data.length());
client.print("\n\n");
client.print(data);
Serial.println("Posted finished -----------");
delay(500);
if (!client.connected()) {
Serial.println();
Serial.println("disconnecting.");
client.stop();
}
}
void loop() {
String data;
digitalWrite(LED_PIN, state);
state = !state;
if (client.connected()) {
webSocketClient.getData(data);
if (data.length() > 0) {
Serial.print("Received data: ");
Serial.println(data);
}
// capture the value of analog 1, send it along
pinMode(1, INPUT);
data = String(analogRead(1));
webSocketClient.sendData(data);
} else {
Serial.println("Client disconnected.");
while (1) {
// Hang on disconnect.
}
}
// wait to fully let the client disconnect
delay(3000);
}
void loop() {
static boolean packetActive = false;
static uint8_t index = 0;
static boolean readingReturn = false;
static uint8_t rindex = 0;
if (!client.connected()) {
// try to connect to a new client
client = server.available();
} else {
// read data from the connected client
if (client.available() > 0) {
char c = client.read();
if (packetActive) {
commandBuffer[index] = c;
commandBuffer[++index] = 0;
if (c == EOP) {
comHandler();
packetActive = false;
}
}
else if (c == SOP) {
index = 0;
commandBuffer[index] = c;
commandBuffer[++index] = 0;
packetActive = true;
}
if (returnReady) {
client.println(returnBuffer);
server.println(returnBuffer);
Serial.println(returnBuffer);
returnReady = false;
}
}
}
if (Serial.available() && !returnReady) {
char s = Serial.read();
if (s == SOP) {
readingReturn = true;
rindex = 0;
}
if (readingReturn) {
returnBuffer[rindex] = s;
returnBuffer[++rindex] = 0;
if (s == EOP) {
returnReady = true;
}
}
}
}
uint8_t ESP8266WebServer::_uploadReadByte(WiFiClient& client){
int res = client.read();
if(res == -1){
while(!client.available() && client.connected())
yield();
res = client.read();
}
return (uint8_t)res;
}
void Con::TCPhandler(){
if (this->curType&CON_TCP){
if (ConSrv.hasClient()){
if (ConTcp.connected()){
ConTcp.stop();
}
ConTcp=ConSrv.available();
ConTcp.write("Hello\n",6);
}
}
}
void connectClients() {
if (server.hasClient()) {
if (!serverClient || !serverClient.connected()) {
if (serverClient) serverClient.stop();
serverClient = server.available();
} else {
//no free/disconnected spot so reject
WiFiClient rejectClient = server.available();
rejectClient.stop();
}
}
}
void ThingspeakClient::getLastChannelItem(String channelId, String readApiKey) {
JsonStreamingParser parser;
parser.setListener(this);
WiFiClient client;
// http://api.thingspeak.com/channels/CHANNEL_ID/feeds.json?results=2&api_key=API_KEY
const char host[] = "api.thingspeak.com";
String url = "/channels/" + channelId +"/feeds.json?results=1&api_key=" + readApiKey;
const int httpPort = 80;
if (!client.connect(host, httpPort)) {
Serial.println("connection failed");
return;
}
Serial.print("Requesting URL: ");
Serial.println(url);
// This will send the request to the server
client.print(String("GET ") + url + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"Connection: close\r\n\r\n");
int retryCounter = 0;
while(!client.available()) {
Serial.println(".");
delay(1000);
retryCounter++;
if (retryCounter > 10) {
return;
}
}
int pos = 0;
boolean isBody = false;
char c;
int size = 0;
client.setNoDelay(false);
while(client.connected()) {
while((size = client.available()) > 0) {
c = client.read();
if (c == '{' || c == '[') {
isBody = true;
}
if (isBody) {
parser.parse(c);
}
}
}
}
void httpRequest() {
// close any connection before send a new request.
// This will free the socket on the WiFi shield
client.stop();
// if there's a successful connection:
if (client.connect("www.hasthelargehadroncolliderdestroyedtheworldyet.com", 80)) {
Serial5.println("connecting...");
// send the HTTP PUT request:
client.println("GET / HTTP/1.1");
client.println("Host: www.hasthelargehadroncolliderdestroyedtheworldyet.com");
//client.println("User-Agent: ArduinoWiFi/1.1");
client.println("Connection: close");
client.println();
if( client.connected() )
{
Serial5.println("\tClient connected");
while( client.available() == 0 )
{
//Waiting for data
if( !client.connected() )
{
Serial5.println("\tClient disconnected !");
break;
}
}
}
else
{
Serial5.println("\tClient not connected");
}
}
else {
// if you couldn't make a connection:
Serial5.println("\tconnection failed");
}
}
void loop() {
// if there are incoming bytes available
// from the server, read them and print them:
while (client.available()) {
char c = client.read();
Serial.write(c);
}
// if the server's disconnected, stop the client:
if (!client.connected()) {
Serial.println();
Serial.println("disconnecting from server.");
client.stop();
// do nothing forevermore:
while(true);
}
}
void Con::printf(const char *fmt, ...){
int l;
char buffer[255];
l=strlen(fmt);
va_list ap;
va_start(ap, fmt);
ets_vsnprintf(buffer,255, fmt, ap);
va_end(ap);
if (curType&CON_SERIAL){
Serial.print(buffer);
}
if (this->curType&CON_TCP){
if (ConTcp.connected()){
ConTcp.print(buffer);
}
}
}
void TimeClient::updateTime() {
WiFiClient client;
const int httpPort = 80;
if (!client.connect("google.com", httpPort)) {
Serial.println("connection failed");
return;
}
// This will send the request to the server
client.print(String("GET / HTTP/1.1\r\n") +
String("Host: google.com\r\n") +
String("Connection: close\r\n\r\n"));
int repeatCounter = 0;
while(!client.available() && repeatCounter < 10) {
delay(1000);
Serial.println(".");
repeatCounter++;
}
String line;
int size = 0;
client.setNoDelay(false);
while(client.connected()) {
while((size = client.available()) > 0) {
line = client.readStringUntil('\n');
line.toUpperCase();
// example:
// date: Thu, 19 Nov 2015 20:25:40 GMT
if (line.startsWith("DATE: ")) {
Serial.println(line.substring(23, 25) + ":" + line.substring(26, 28) + ":" +line.substring(29, 31));
int parsedHours = line.substring(23, 25).toInt();
int parsedMinutes = line.substring(26, 28).toInt();
int parsedSeconds = line.substring(29, 31).toInt();
Serial.println(String(parsedHours) + ":" + String(parsedMinutes) + ":" + String(parsedSeconds));
localEpoc = (parsedHours * 60 * 60 + parsedMinutes * 60 + parsedSeconds);
Serial.println(localEpoc);
localMillisAtUpdate = millis();
}
}
}
}
void WundergroundClient::doUpdate(String url) {
JsonStreamingParser parser;
parser.setListener(this);
WiFiClient client;
const int httpPort = 80;
if (!client.connect("api.wunderground.com", httpPort)) {
Serial.println("connection failed");
return;
}
Serial.print("Requesting URL: ");
Serial.println(url);
// This will send the request to the server
client.print(String("GET ") + url + " HTTP/1.1\r\n" +
"Host: api.wunderground.com\r\n" +
"Connection: close\r\n\r\n");
int retryCounter = 0;
while(!client.available()) {
delay(1000);
retryCounter++;
if (retryCounter > 10) {
return;
}
}
int pos = 0;
boolean isBody = false;
char c;
int size = 0;
client.setNoDelay(false);
while(client.connected()) {
while((size = client.available()) > 0) {
c = client.read();
if (c == '{' || c == '[') {
isBody = true;
}
if (isBody) {
parser.parse(c);
}
}
}
}
void APServer(){
WiFiClient client = server.available(); // Check if a client has connected
if (!client) {
return;
}
Serial.println("");
Serial.println("New client");
// Wait for data from client to become available
while (client.connected() && !client.available()) {
delay(1);
}
// Read the first line of HTTP request
String req = client.readStringUntil('\r');
Serial.println(req);
String s;
String gsid;
String gpwd;
//if the form has been submitted
if(req.indexOf("ssid")!=-1){
//TODO Make this a POST request
//I'm basically hoping they're being nice
int x = req.indexOf("ssid")+5;
gsid = req.substring(x,req.indexOf("&",x));
x = req.indexOf("pwd")+4;
gpwd = req.substring(x,req.indexOf(" ",x));
s = gsid;
saveWifiConfig(gsid,gpwd);
Serial.print("Restarting");
client.print("Thanks! Restarting to new configuration");
client.flush();
ESP.restart();
}
else{
s = "<h1>Welcome to your ESP</h1><form action='/' method='get'><table><tr><td>SSID</td><td><input type='text' name='ssid'></td></tr><tr><td>Password</td><td><input type='text' name='pwd'></td><tr><td /><td><input type='submit' value='Submit'></td></tr></form>";
client.print(s);
}
client.flush();
delay(1);
//Serial.println("Client disonnected");
}
void next_client() {
// Listenning for new clients
client = server.available();
if (client) {
Serial.println("New client");
// bolean to locate when the http request ends
boolean blank_line = true;
while (client.connected()) {
if (client.available()) {
char c = client.read();
if (c == '\n' && blank_line) {
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: application/json");
client.println("Access-Control-Allow-Origin: *");
client.println("Connection: close");
client.println();
print_json();
break;
}
if (c == '\n') {
// when starts reading a new line
Serial.println();
blank_line = true;
}
else if (c != '\r') {
// when finds a character on the current line
Serial.write(c);
blank_line = false;
}
}
}
// closing the client connection
delay(1);
client.stop();
Serial.println("Client disconnected.");
}
}
void WebServer::handleClient()
{
WiFiClient client = _server.available();
if (!client) {
return;
}
#ifdef DEBUG
DEBUG_OUTPUT.println("New client");
#endif
// Wait for data from client to become available
uint16_t maxWait = HTTP_MAX_DATA_WAIT;
while(client.connected() && !client.available() && maxWait--){
delay(1);
}
if (!_parseRequest(client)) {
return;
}
_currentClient = client;
_handleRequest();
}
void ArduinoOTAClass::_runUpdate() {
if (!Update.begin(_size, _cmd)) {
#ifdef OTA_DEBUG
OTA_DEBUG.println("Update Begin Error");
#endif
if (_error_callback) {
_error_callback(OTA_BEGIN_ERROR);
}
_udp_ota->listen(*IP_ADDR_ANY, _port);
_state = OTA_IDLE;
return;
}
Update.setMD5(_md5.c_str());
WiFiUDP::stopAll();
WiFiClient::stopAll();
if (_start_callback) {
_start_callback();
}
if (_progress_callback) {
_progress_callback(0, _size);
}
WiFiClient client;
if (!client.connect(_ota_ip, _ota_port)) {
#ifdef OTA_DEBUG
OTA_DEBUG.printf("Connect Failed\n");
#endif
_udp_ota->listen(*IP_ADDR_ANY, _port);
if (_error_callback) {
_error_callback(OTA_CONNECT_ERROR);
}
_state = OTA_IDLE;
}
uint32_t written, total = 0;
while (!Update.isFinished() && client.connected()) {
int waited = 1000;
while (!client.available() && waited--)
delay(1);
if (!waited){
#ifdef OTA_DEBUG
OTA_DEBUG.printf("Receive Failed\n");
#endif
_udp_ota->listen(*IP_ADDR_ANY, _port);
if (_error_callback) {
_error_callback(OTA_RECEIVE_ERROR);
}
_state = OTA_IDLE;
}
written = Update.write(client);
if (written > 0) {
client.print(written, DEC);
total += written;
if(_progress_callback) {
_progress_callback(total, _size);
}
}
}
if (Update.end()) {
client.print("OK");
client.stop();
delay(10);
#ifdef OTA_DEBUG
OTA_DEBUG.printf("Update Success\nRebooting...\n");
#endif
if (_end_callback) {
_end_callback();
}
ESP.restart();
} else {
_udp_ota->listen(*IP_ADDR_ANY, _port);
if (_error_callback) {
_error_callback(OTA_END_ERROR);
}
Update.printError(client);
#ifdef OTA_DEBUG
Update.printError(OTA_DEBUG);
#endif
_state = OTA_IDLE;
}
}
int WiFiManager::serverLoop()
{
// Check for any mDNS queries and send responses
mdns.update();
String s;
WiFiClient client = server_s.available();
if (!client) {
return(WM_WAIT);
}
DEBUG_PRINT("New client");
// Wait for data from client to become available
while(client.connected() && !client.available()){
delay(1);
}
// Read the first line of HTTP request
String req = client.readStringUntil('\r');
// First line of HTTP request looks like "GET /path HTTP/1.1"
// Retrieve the "/path" part by finding the spaces
int addr_start = req.indexOf(' ');
int addr_end = req.indexOf(' ', addr_start + 1);
if (addr_start == -1 || addr_end == -1) {
DEBUG_PRINT("Invalid request: ");
DEBUG_PRINT(req);
return(WM_WAIT);
}
req = req.substring(addr_start + 1, addr_end);
DEBUG_PRINT("Request: ");
DEBUG_PRINT(req);
client.flush();
if (req == "/")
{
s = HTTP_200;
String head = HTTP_HEAD;
head.replace("{v}", "Config ESP");
s += head;
s += HTTP_SCRIPT;
s += HTTP_STYLE;
s += HTTP_HEAD_END;
int n = WiFi.scanNetworks();
DEBUG_PRINT("scan done");
if (n == 0) {
DEBUG_PRINT("no networks found");
s += "<div>No networks found. Refresh to scan again.</div>";
}
else {
for (int i = 0; i < n; ++i)
{
DEBUG_PRINT(WiFi.SSID(i));
DEBUG_PRINT(WiFi.RSSI(i));
String item = HTTP_ITEM;
item.replace("{v}", WiFi.SSID(i));
s += item;
delay(10);
}
}
s += HTTP_FORM;
s += HTTP_END;
DEBUG_PRINT("Sending config page");
}
else if ( req.startsWith("/s") ) {
String qssid;
qssid = urldecode(req.substring(8,req.indexOf('&')).c_str());
DEBUG_PRINT(qssid);
DEBUG_PRINT("");
req = req.substring( req.indexOf('&') + 1);
String qpass;
qpass = urldecode(req.substring(req.lastIndexOf('=')+1).c_str());
setEEPROMString(0, 32, qssid);
setEEPROMString(32, 64, qpass);
EEPROM.commit();
s = HTTP_200;
String head = HTTP_HEAD;
head.replace("{v}", "Saved config");
s += HTTP_STYLE;
s += HTTP_HEAD_END;
s += "saved to eeprom...<br/>resetting in 10 seconds";
s += HTTP_END;
client.print(s);
client.flush();
DEBUG_PRINT("Saved WiFiConfig...restarting.");
return WM_DONE;
}
else
{
s = HTTP_404;
DEBUG_PRINT("Sending 404");
}
client.print(s);
DEBUG_PRINT("Done with client");
return(WM_WAIT);
}
bool ESPWebServer::handleClientRequest(ServoControl &servoInteraction, String htmlPage)
{
bool clientHandled = false;
WiFiClient client = m_server.available(); // Listen for incoming clients
if (client)
{
Serial.println("New Client.");
String header = "";
String currentLine = ""; // make a String to hold incoming data from the client
while (client.connected())
{
if (client.available())
{
char c = client.read(); // read a byte, then
Serial.write(c); // print it out the serial monitor
header += c;
if (c == '\n')
{
// if the current line is blank, you got two newline characters in a row.
// that's the end of the client HTTP request, so send a response:
if (currentLine.length() == 0)
{
// checks if the client signaled an interaction
int index;
servoInteraction.type = NONE;
if ((index = header.indexOf("GET /openBlinds")) >= 0)
{
servoInteraction.type = OPEN_BLINDS;
}
else if ((index = header.indexOf("GET /closeBlinds")) >= 0)
{
servoInteraction.type = CLOSE_BLINDS;
}
else if ((index = header.indexOf("GET /setOpenBlinds")) >= 0)
{
String passedValue;
index += 20;
char newChar = header.charAt(index);
while(newChar != '"')
{
passedValue += newChar;
index++;
newChar = header.charAt(index);
}
servoInteraction.type = SET_OPEN;
servoInteraction.setting = passedValue.toInt();
}
else if ((index = header.indexOf("GET /setCloseBlinds")) >= 0)
{
String passedValue;
index += 21;
char newChar = header.charAt(index);
while(newChar != '"')
{
passedValue += newChar;
index++;
newChar = header.charAt(index);
}
servoInteraction.type = SET_CLOSE;
servoInteraction.setting = passedValue.toInt();
}
// HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
// and a content-type so the client knows what's coming, then a blank line:
client.println("HTTP/1.1 200 OK");
client.println("Content-type:text/html");
client.println("Connection: close");
client.println();
// Display the HTML web page
client.println(htmlPage);
// Break out of the while loop
clientHandled = true;
break;
}
else
{
// if you got a newline, then clear currentLine
currentLine = "";
}
}
else if (c != '\r')
{
// if you got anything else but a carriage return character,
currentLine += c; // add it to the end of the currentLine
}
}
}
// Close the connection
client.stop();
Serial.println("Client disconnected.");
Serial.println("");
}
return clientHandled;
}
/*
* ======== apLoop ========
*/
__extern void apLoop()
{
/* Did a client connect/disconnect since the last time we checked? */
int a = WiFi.getTotalDevices();
if (a != num_clients) {
if (a > num_clients) { // new Client connected
int i;
/* display all clients on the network */
Serial.println("New client connected. All clients:");
for (i = 0; i < a; i++) {
Serial.print(" Client #");
Serial.print(i);
Serial.print(" at IP address = ");
Serial.print(WiFi.deviceIpAddress(i));
Serial.print(", MAC = ");
Serial.println(WiFi.deviceMacAddress(i));
}
}
else { // a Client disconnected
Serial.print("Client disconnected, ");
Serial.print(a);
Serial.println(" clients remaining.");
}
num_clients = a;
}
if (num_clients > 0) {
/* listen for incoming clients */
WiFiClient client = server.available();
if (client) {
/* if there's a client, read and process commands */
Serial.print("new client socket: ");
Serial.println(++num_sockets);
static char buffer[80] = {0};
int bufLen = 0;
/* while connected to the client, read commands and send results */
while (client.connected()) {
/* if there's a byte to read from the client .. */
if (client.available()) {
/* copy it to the command buffer, byte at a time */
char c = client.read();
/* ignore bogus characters */
if (c == '\0' || c == '\r') continue;
/* never overrun the command buffer */
if (bufLen >= (int)(sizeof (buffer))) {
bufLen = sizeof (buffer) - 1;
}
buffer[bufLen++] = c;
/* if there's a new line, we have a complete command */
if (c == '\n') {
doCommand(buffer, bufLen, client);
/* reset command buffer index to get next command */
bufLen = 0;
}
}
}
/* client disconnected, close the connection */
client.stop();
Serial.println("client socket disconnected");
}
}
delay(100);
}
/*
* ======== apLoop ========
*/
__extern void apLoop()
{
/* Did a client connect/disconnect since the last time we checked? */
int a = WiFi.getTotalDevices();
if (a != num_clients) {
if (a > num_clients) { // new Client connected
int i;
digitalWrite(MAIN_LED_PIN, !digitalRead(MAIN_LED_PIN));
/* display all clients on the network */
Serial.println("New client connected. All clients:");
for (i = 0; i < a; i++) {
Serial.print(" Client #");
Serial.print(i);
Serial.print(" at IP address = ");
Serial.print(WiFi.deviceIpAddress(i));
Serial.print(", MAC = ");
Serial.println(WiFi.deviceMacAddress(i));
}
}
else { // a Client disconnected
digitalWrite(MAIN_LED_PIN, !digitalRead(MAIN_LED_PIN));
Serial.print("Client disconnected, ");
Serial.print(a);
Serial.println(" clients remaining.");
}
num_clients = a;
}
if (num_clients > 0) {
/* listen for incoming clients */
WiFiClient client = server.available();
if (client) {
/* if there's a client, read and process commands */
Serial.print("new client socket: ");
Serial.println(++num_sockets);
static char buffer[64] = {0};
int bufLen = 0;
/* while connected to the client, read commands and send results */
unsigned int lapse = 0;
unsigned int start = millis();
while (client.connected()) {
/* if there's a byte to read from the client .. */
if (client.available()) {
/* copy it to the command buffer, byte at a time */
char c = client.read();
/* ignore bogus characters */
if (c == '\0' || c == '\r') continue;
/* never overrun the command buffer */
if (bufLen >= (int)(sizeof (buffer))) {
bufLen = sizeof (buffer) - 1;
}
buffer[bufLen++] = c;
//Serial.print(num_sockets); Serial.print(": ");
//Serial.println((int)c);
/* if there's a new line, we have a complete command */
if (c == '\n') {
doCommand(buffer, bufLen, client);
/* reset command buffer index to get next command */
bufLen = 0;
}
lapse = 0;
start = millis();
}
else {
lapse = millis() - start;
}
}
Serial.print("client socket disconnected: lapse = ");
Serial.println(lapse);
/* client disconnected or timed out, close the connection */
client.stop();
/* disconnect => implicitly stop the motor */
motorWASD = ' ';
}
}
/* check for new connections 2 times per second */
delay(500);
}
void ESP8266WebServer::handleClient()
{
WiFiClient client = _server.available();
if (!client) {
return;
}
#ifdef DEBUG
Serial.println("New client");
#endif
// Wait for data from client to become available
while(client.connected() && !client.available()){
delay(1);
}
// Read the first line of HTTP request
String req = client.readStringUntil('\r');
client.readStringUntil('\n');
HTTPMethod method = HTTP_GET;
if (req.startsWith("POST")) {
method = HTTP_POST;
}
// First line of HTTP request looks like "GET /path HTTP/1.1"
// Retrieve the "/path" part by finding the spaces
int addr_start = req.indexOf(' ');
int addr_end = req.indexOf(' ', addr_start + 1);
if (addr_start == -1 || addr_end == -1) {
#ifdef DEBUG
Serial.print("Invalid request: ");
Serial.println(req);
#endif
return;
}
req = req.substring(addr_start + 1, addr_end);
String formData;
if (method == HTTP_POST) {
int contentLength = -1;
int headerCount = 0;
while(headerCount < 1024) { // there shouldn't be that much really
String line = client.readStringUntil('\r');
client.readStringUntil('\n');
if (line.length() > 0) { // this is a header
++headerCount;
if (contentLength < 0 && line.startsWith("Content-Length")) {
// get content length from the header
int valuePos = line.indexOf(' ', 14);
if (valuePos > 0) {
String valueStr = line.substring(valuePos+1);
contentLength = valueStr.toInt();
#ifdef DEBUG
Serial.print("Content-Length: ");
Serial.println(contentLength);
#endif
}
}
}
else {
break;
}
}
#ifdef DEBUG
Serial.print("headerCount=");
Serial.println(headerCount);
#endif
if (contentLength >= 0) {
formData = "";
int n = 0; // timeout counter
while (formData.length() < contentLength && ++n < 3)
formData += client.readString();
}
else {
formData = client.readStringUntil('\r'); // will return after timing out once
}
}
else if (method == HTTP_GET) {
int args_start = req.indexOf('?');
if (args_start != -1) {
formData = req.substring(args_start + 1);
req = req.substring(0, args_start);
}
}
client.flush();
#ifdef DEBUG
Serial.print("Request: ");
Serial.println(req);
Serial.print("Args: ");
Serial.println(formData);
#endif
_parseArguments(formData);
_handleRequest(client, req, method);
}
bool ESP8266WebServer::_parseForm(WiFiClient& client, String boundary, uint32_t len){
#ifdef DEBUG_ESP_HTTP_SERVER
DEBUG_OUTPUT.print("Parse Form: Boundary: ");
DEBUG_OUTPUT.print(boundary);
DEBUG_OUTPUT.print(" Length: ");
DEBUG_OUTPUT.println(len);
#endif
String line;
int retry = 0;
do {
line = client.readStringUntil('\r');
++retry;
} while (line.length() == 0 && retry < 3);
client.readStringUntil('\n');
//start reading the form
if (line == ("--"+boundary)){
RequestArgument* postArgs = new RequestArgument[32];
int postArgsLen = 0;
while(1){
String argName;
String argValue;
String argType;
String argFilename;
bool argIsFile = false;
line = client.readStringUntil('\r');
client.readStringUntil('\n');
if (line.startsWith("Content-Disposition")){
int nameStart = line.indexOf('=');
if (nameStart != -1){
argName = line.substring(nameStart+2);
nameStart = argName.indexOf('=');
if (nameStart == -1){
argName = argName.substring(0, argName.length() - 1);
} else {
argFilename = argName.substring(nameStart+2, argName.length() - 1);
argName = argName.substring(0, argName.indexOf('"'));
argIsFile = true;
#ifdef DEBUG_ESP_HTTP_SERVER
DEBUG_OUTPUT.print("PostArg FileName: ");
DEBUG_OUTPUT.println(argFilename);
#endif
//use GET to set the filename if uploading using blob
if (argFilename == "blob" && hasArg("filename")) argFilename = arg("filename");
}
#ifdef DEBUG_ESP_HTTP_SERVER
DEBUG_OUTPUT.print("PostArg Name: ");
DEBUG_OUTPUT.println(argName);
#endif
argType = "text/plain";
line = client.readStringUntil('\r');
client.readStringUntil('\n');
if (line.startsWith("Content-Type")){
argType = line.substring(line.indexOf(':')+2);
//skip next line
client.readStringUntil('\r');
client.readStringUntil('\n');
}
#ifdef DEBUG_ESP_HTTP_SERVER
DEBUG_OUTPUT.print("PostArg Type: ");
DEBUG_OUTPUT.println(argType);
#endif
if (!argIsFile){
while(1){
line = client.readStringUntil('\r');
client.readStringUntil('\n');
if (line.startsWith("--"+boundary)) break;
if (argValue.length() > 0) argValue += "\n";
argValue += line;
}
#ifdef DEBUG_ESP_HTTP_SERVER
DEBUG_OUTPUT.print("PostArg Value: ");
DEBUG_OUTPUT.println(argValue);
DEBUG_OUTPUT.println();
#endif
RequestArgument& arg = postArgs[postArgsLen++];
arg.key = argName;
arg.value = argValue;
if (line == ("--"+boundary+"--")){
#ifdef DEBUG_ESP_HTTP_SERVER
DEBUG_OUTPUT.println("Done Parsing POST");
#endif
break;
}
} else {
_currentUpload.status = UPLOAD_FILE_START;
_currentUpload.name = argName;
_currentUpload.filename = argFilename;
_currentUpload.type = argType;
_currentUpload.totalSize = 0;
_currentUpload.currentSize = 0;
#ifdef DEBUG_ESP_HTTP_SERVER
DEBUG_OUTPUT.print("Start File: ");
DEBUG_OUTPUT.print(_currentUpload.filename);
DEBUG_OUTPUT.print(" Type: ");
DEBUG_OUTPUT.println(_currentUpload.type);
#endif
if(_currentHandler && _currentHandler->canUpload(_currentUri))
_currentHandler->upload(*this, _currentUri, _currentUpload);
_currentUpload.status = UPLOAD_FILE_WRITE;
uint8_t argByte = _uploadReadByte(client);
readfile:
while(argByte != 0x0D){
if (!client.connected()) return _parseFormUploadAborted();
_uploadWriteByte(argByte);
argByte = _uploadReadByte(client);
}
argByte = _uploadReadByte(client);
if (!client.connected()) return _parseFormUploadAborted();
if (argByte == 0x0A){
argByte = _uploadReadByte(client);
if (!client.connected()) return _parseFormUploadAborted();
if ((char)argByte != '-'){
//continue reading the file
_uploadWriteByte(0x0D);
_uploadWriteByte(0x0A);
goto readfile;
} else {
argByte = _uploadReadByte(client);
if (!client.connected()) return _parseFormUploadAborted();
if ((char)argByte != '-'){
//continue reading the file
_uploadWriteByte(0x0D);
_uploadWriteByte(0x0A);
_uploadWriteByte((uint8_t)('-'));
goto readfile;
}
}
uint8_t endBuf[boundary.length()];
client.readBytes(endBuf, boundary.length());
if (strstr((const char*)endBuf, boundary.c_str()) != NULL){
if(_currentHandler && _currentHandler->canUpload(_currentUri))
_currentHandler->upload(*this, _currentUri, _currentUpload);
_currentUpload.totalSize += _currentUpload.currentSize;
_currentUpload.status = UPLOAD_FILE_END;
if(_currentHandler && _currentHandler->canUpload(_currentUri))
_currentHandler->upload(*this, _currentUri, _currentUpload);
#ifdef DEBUG_ESP_HTTP_SERVER
DEBUG_OUTPUT.print("End File: ");
DEBUG_OUTPUT.print(_currentUpload.filename);
DEBUG_OUTPUT.print(" Type: ");
DEBUG_OUTPUT.print(_currentUpload.type);
DEBUG_OUTPUT.print(" Size: ");
DEBUG_OUTPUT.println(_currentUpload.totalSize);
#endif
line = client.readStringUntil(0x0D);
client.readStringUntil(0x0A);
if (line == "--"){
#ifdef DEBUG_ESP_HTTP_SERVER
DEBUG_OUTPUT.println("Done Parsing POST");
#endif
break;
}
continue;
} else {
_uploadWriteByte(0x0D);
_uploadWriteByte(0x0A);
_uploadWriteByte((uint8_t)('-'));
_uploadWriteByte((uint8_t)('-'));
uint32_t i = 0;
while(i < boundary.length()){
_uploadWriteByte(endBuf[i++]);
}
argByte = _uploadReadByte(client);
goto readfile;
}
} else {
_uploadWriteByte(0x0D);
goto readfile;
}
break;
}
}
}
}
int iarg;
int totalArgs = ((32 - postArgsLen) < _currentArgCount)?(32 - postArgsLen):_currentArgCount;
for (iarg = 0; iarg < totalArgs; iarg++){
RequestArgument& arg = postArgs[postArgsLen++];
arg.key = _currentArgs[iarg].key;
arg.value = _currentArgs[iarg].value;
}
if (_currentArgs) delete[] _currentArgs;
_currentArgs = new RequestArgument[postArgsLen];
for (iarg = 0; iarg < postArgsLen; iarg++){
RequestArgument& arg = _currentArgs[iarg];
arg.key = postArgs[iarg].key;
arg.value = postArgs[iarg].value;
}
_currentArgCount = iarg;
if (postArgs) delete[] postArgs;
return true;
}
#ifdef DEBUG_ESP_HTTP_SERVER
DEBUG_OUTPUT.print("Error: line: ");
DEBUG_OUTPUT.println(line);
#endif
return false;
}
void Humure::loop()
{
// Check if a client has connected
WiFiClient client = this->server.available();
if (!client) {
return;
}
Serial.println("");
Serial.println("New client");
// Wait for data from client to become available
while(client.connected() && !client.available()){
delay(1);
}
// Read the first line of HTTP request
String req = client.readStringUntil('\r');
// GET or POST?
bool req_get;
if ( req.startsWith("GET") ) {
req_get = true;
} else if ( req.startsWith("POST") ) {
req_get = false;
} else {
Serial.print("Invalid request: ");
Serial.println(req);
return;
}
// First line of HTTP request looks like "GET /path HTTP/1.1"
// Retrieve the "/path" part by finding the spaces
int addr_start = req.indexOf(' ');
int addr_end = req.indexOf(' ', addr_start + 1);
if (addr_start == -1 || addr_end == -1) {
Serial.print("Invalid request: ");
Serial.println(req);
return;
}
req = req.substring(addr_start + 1, addr_end);
Serial.print("Request ");
if (req_get)
{
Serial.print("GET");
} else {
Serial.print("POST");
}
Serial.print(" : ");
Serial.println(req);
client.flush();
if ( req_get ) {
if ( req == "/" ) {
readSensor();
sendFullPage(client);
} else
if ( req == "/lamp") {
jsonValue(client, String( ! led_status) );
} else
if ( req == "/temperatur") {
readSensor();
jsonValue(client, String( this->t) );
} else
if ( req == "/humidity") {
readSensor();
jsonValue(client, String( this->h) );
} else {
client.print("HTTP/1.1 404 Not Found\r\n\r\n");
}
} else {
if ( req == "/lamp/on" ) {
led_status = 0;
jsonValue(client, String( ! led_status) );
} else
if ( req =="/lamp/off" ) {
led_status = 1;
jsonValue(client, String( ! led_status) );
} else {
client.print("HTTP/1.1 404 Not Found\r\n\r\n");
}
digitalWrite(this->led, led_status);
}
Serial.println("Done with client");
}
AJ_Status AJ_Net_Recv(AJ_IOBuffer* buf, uint32_t len, uint32_t timeout)
{
AJ_Status status = AJ_ERR_READ;
uint32_t ret;
uint32_t rx = AJ_IO_BUF_SPACE(buf);
uint32_t recvd = 0;
unsigned long Recv_lastCall = millis();
// first we need to clear out our buffer
uint32_t M = 0;
AJ_InfoPrintf(("AJ_Net_Recv(buf=0x%p, len=%d., timeout=%d.)\n", buf, len, timeout));
if (rxLeftover != 0) {
// there was something leftover from before,
AJ_InfoPrintf(("AJ_NetRecv(): leftover was: %d\n", rxLeftover));
M = min(rx, rxLeftover);
memcpy(buf->writePtr, rxDataStash, M); // copy leftover into buffer.
buf->writePtr += M; // move the data pointer over
memmove(rxDataStash, rxDataStash + M, rxLeftover - M); // shift left-overs toward the start.
rxLeftover -= M;
recvd += M;
// we have read as many bytes as we can
// higher level isn't requesting any more
if (recvd == rx) {
AJ_InfoPrintf(("AJ_Net_Recv(): status=AJ_OK\n"));
return AJ_OK;
}
}
if ((M != 0) && (rxLeftover != 0)) {
AJ_InfoPrintf(("AJ_Net_REcv(): M was: %d, rxLeftover was: %d\n", M, rxLeftover));
}
// wait for data to become available
// time out if nothing arrives
while (g_client.connected() &&
g_client.available() == 0 &&
(millis() - Recv_lastCall < timeout)) {
delay(50); // wait for data or timeout
}
// return timeout if nothing is available
AJ_InfoPrintf(("AJ_Net_Recv(): millis %d, Last_call %d timeout %d Avail: %d\n", millis(), Recv_lastCall, timeout, g_client.available()));
if (g_client.connected() && (millis() - Recv_lastCall >= timeout) && (g_client.available() == 0)) {
AJ_InfoPrintf(("AJ_Net_Recv(): timeout. status=AJ_ERR_TIMEOUT\n"));
return AJ_ERR_TIMEOUT;
}
if (g_client.connected()) {
uint32_t askFor = rx;
askFor -= M;
AJ_InfoPrintf(("AJ_Net_Recv(): ask for: %d\n", askFor));
ret = g_client.read(buf->writePtr, askFor);
AJ_InfoPrintf(("AJ_Net_Recv(): read(): ret %d askfor %d\n", ret, askFor));
if (askFor < ret) {
AJ_InfoPrintf(("AJ_Net_Recv(): BUFFER OVERRUN: askFor=%u, ret=%u\n", askFor, ret));
}
if (ret == -1) {
AJ_ErrPrintf(("AJ_Net_Recv(): read() failed. status=AJ_ERR_READ\n"));
status = AJ_ERR_READ;
} else {
AJ_InfoPrintf(("AJ_Net_Recv(): ret now %d\n", ret));
AJ_DumpBytes("Recv", buf->writePtr, ret);
if (ret > askFor) {
AJ_InfoPrintf(("AJ_Net_Recv(): new leftover %d\n", ret - askFor));
// now shove the extra into the stash
memcpy(rxDataStash + rxLeftover, buf->writePtr + askFor, ret - askFor);
rxLeftover += (ret - askFor);
buf->writePtr += rx;
} else {
buf->writePtr += ret;
}
status = AJ_OK;
}
}
return status;
}
void loop(){
WiFiClient client = server.available(); // Listen for incoming clients
if (client) {
// Print local IP address and start web server
Serial.println("");
Serial.println("WiFi connected.");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
//server.begin();
// If a new client connects,
Serial.println("New Client."); // print a message out in the serial port
String currentLine = ""; // make a String to hold incoming data from the client
while (client.connected()) { // loop while the client's connected
if (client.available()) { // if there's bytes to read from the client,
char c = client.read(); // read a byte, then
Serial.write(c); // print it out the serial monitor
header += c;
if (c == '\n') { // if the byte is a newline character
// if the current line is blank, you got two newline characters in a row.
// that's the end of the client HTTP request, so send a response:
if (currentLine.length() == 0) {
// HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
// and a content-type so the client knows what's coming, then a blank line:
client.println("HTTP/1.1 200 OK");
client.println("Content-type:text/html");
client.println("Connection: close");
client.println();
// turns the GPIOs on and off
if (header.indexOf("GET /5/on") >= 0) {
Serial.println("GPIO 5 on");
output5State = "on";
digitalWrite(output5, HIGH);
} else if (header.indexOf("GET /5/off") >= 0) {
Serial.println("GPIO 5 off");
output5State = "off";
digitalWrite(output5, LOW);
} else if (header.indexOf("GET /4/on") >= 0) {
Serial.println("GPIO 4 on");
output4State = "on";
digitalWrite(output4, HIGH);
} else if (header.indexOf("GET /4/off") >= 0) {
Serial.println("GPIO 4 off");
output4State = "off";
digitalWrite(output4, LOW);
}
// Display the HTML web page
client.println("<!DOCTYPE html><html>");
client.println("<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">");
client.println("<link rel=\"icon\" href=\"data:,\">");
// CSS to style the on/off buttons
// Feel free to change the background-color and font-size attributes to fit your preferences
client.println("<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}");
client.println(".button { background-color: #195B6A; border: none; color: white; padding: 16px 40px;");
client.println("text-decoration: none; font-size: 30px; margin: 2px; cursor: pointer;}");
client.println(".button2 {background-color: #77878A;}</style></head>");
// Web Page Heading
client.println("<body><h1>ESP8266 Web Server</h1>");
// Display current state, and ON/OFF buttons for GPIO 5
client.println("<p>GPIO 5 - State " + output5State + "</p>");
// If the output5State is off, it displays the ON button
if (output5State=="off") {
client.println("<p><a href=\"/5/on\"><button class=\"button\">ON</button></a></p>");
} else {
client.println("<p><a href=\"/5/off\"><button class=\"button button2\">OFF</button></a></p>");
}
// Display current state, and ON/OFF buttons for GPIO 4
client.println("<p>GPIO 4 - State " + output4State + "</p>");
// If the output4State is off, it displays the ON button
if (output4State=="off") {
client.println("<p><a href=\"/4/on\"><button class=\"button\">ON</button></a></p>");
} else {
client.println("<p><a href=\"/4/off\"><button class=\"button button2\">OFF</button></a></p>");
}
client.println("</body></html>");
// The HTTP response ends with another blank line
client.println();
// Break out of the while loop
break;
} else { // if you got a newline, then clear currentLine
currentLine = "";
}
} else if (c != '\r') { // if you got anything else but a carriage return character,
currentLine += c; // add it to the end of the currentLine
}
}
}
// Clear the header variable
header = "";
// Close the connection
client.stop();
Serial.println("Client disconnected.");
Serial.println("");
}
}
