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ptz_stick.ino
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ptz_stick.ino
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#include <custom.h> // Includes my credentials outside git-repo, delete this line in your project!
// Wifi+OTA
#include <WiFi.h>
#include <ESPmDNS.h>
#include <ArduinoOTA.h>
// TFT-Display + Rotary Encoder:
#include <Adafruit_GFX.h> // Core graphics library
#include <Adafruit_ST7735.h> // Hardware-specific library for ST7735
#include <AiEsp32RotaryEncoder.h> // https://github.com/igorantolic/ai-esp32-rotary-encoder Lib for KY-040 Rotary-Encoders
//#include <esp32-hal-adc.h>
// Time:
#include <WiFiUdp.h>
#include <NTPClient_Generic.h> // https://github.com/khoih-prog/NTPClient_Generic
#include <Timezone_Generic.h> // https://github.com/khoih-prog/Timezone_Generic
#include <TimeLib.h> // https://github.com/PaulStoffregen/Time
// Functions:
#include <ArduinoJson.h> // https://github.com/bblanchon/ArduinoJson
#include <MD5.h> // https://github.com/tzikis/ArduinoMD5
//#include "nvs_flash.h"
//#include "nvs.h"
#define TIME_ZONE_OFFSET_HRS (+1)
// ESP-Pin TFT-Pin
#define TFT_CS 5 // HW-SPI CS
#define TFT_RST 22 // RES
#define TFT_DC 19 // HW-SPI MISO
#define TFT_MOSI 23 // HW-SPI SDA
#define TFT_SCLK 18 // HW-SPI SCL
#define TFT_BACKLIGHT 21 // BL
#define TFT_IDLE_TIMEOUT 60 // Time until display auto off, also disconnects from EVO-Server
#define AIN0 34 // ADC1-CH6 Pan
#define AIN1 35 // ADC1-CH7 Tilt
#define AIN2 32 // ADC1-CH4 Zoom
#define STICK_BTN 33 // PTZ-Stick Button
#define ENC0_DT 25
#define ENC0_CLK 26
#define ENC0_BTN 27
#define ROTARY_ENCODER_VCC_PIN 14
#define ROTARY_ENCODER_STEPS 4
#ifndef SSID_NAME
#define SSID_NAME "<insert wifi name here>"
#define SSID_PASS "<insert wifi password here>"
#endif
#ifndef OTA_PASS
#define OTA_PASS "<insert OTA-Password here>"
#endif
#ifndef EVO_HOST // Trendnet EVO WebServer Port
#define EVO_HOST "<host:port here>"
#define EVO_USER "<user here>"
#define EVO_PASS "<password here>"
#endif
const char* ssid = SSID_NAME;
const char* password = SSID_PASS;
struct ain_struct { // 300-650 485
unsigned int ain_chan = 0;
unsigned int ain_raw = 0;
unsigned int ain_rev = 0; // invert axis
unsigned int ain_min = 390; // 1500; // Lower limit (ain_val = -100)
unsigned int ain_dead_low = 460; // 2100; // Lower Deadzone (ain_val = -1)
unsigned int ain_dead_high = 520; // 2200; // Upper Deadzone (ain_val = +1)
unsigned int ain_max = 600; // 2800; // Upper limit (ain_val = +100)
int ain_val = 0;
};
ain_struct ain[3];
unsigned int Ain_clicked = 0;
//unsigned int Enc0_clicked = 0;
struct cam_struct {
String title;
int id;
int ptzCapabilities;
};
int num_cams = 0;
cam_struct cam_data[99];
struct digest_struct {
String cnonce;
String nonce;
String HA1;
String AuthMethod;
String realm;
unsigned int nc = 1;
String qop;
String opaque;
};
digest_struct digest;
// String cnonce = "";
// String nonce = "";
String tmpstring = "";
// String HA1 = "";
String HA2 = "";
String authResponse = "";
String authHeaderString = "";
String AuthMethod = "";
// String realm = "";
// String qop = "";
// String opaque = "";
long Enc0_value = 0;
int httpCode = 0;
int fps = 0;
int fps_last = 0;
unsigned int chan = 0;
unsigned int idle = 0;
unsigned int lcd_menu = 0;
unsigned int lcd_change = 1;
unsigned int secs = 0;
unsigned int secs_old = 0;
int wifistatus = 0;
int wifistatus_old = 0;
unsigned int total_buf = 0;
unsigned int progress_buf = 0;
unsigned int progress_old = 0;
int P_old = 0;
int T_old = 0;
int Z_old = 0;
int cam_select = 0; // 111 hinten, 115 vorne
char tmpchar[150];
const char *headerKeys[] = {"WWW-Authenticate"};
size_t numberOfHeaders = sizeof(headerKeys) / sizeof(char*);
WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP);
TimeChangeRule CEST = {"CEST", Last, Sun, Mar, 2, 120}; // Central European Summer Time
TimeChangeRule CET = {"CET ", Last, Sun, Oct, 3, 60}; // Central European Standard Time
Timezone *CE;
time_t t;
DynamicJsonDocument doc(1024);
int16_t textsize_x, textsize_y;
Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_MOSI, TFT_SCLK, TFT_RST); // 128x160
GFXcanvas16 canvas(128, 160); // 16-bit
AiEsp32RotaryEncoder Encoder0 = AiEsp32RotaryEncoder(ENC0_CLK, ENC0_DT, ENC0_BTN, ROTARY_ENCODER_VCC_PIN, ROTARY_ENCODER_STEPS);
WiFiClient evo_client;
//EEPROMClass TRIMDATA("eeprom0");
//nvs_handle_t ain_trim;
esp_err_t err;
void IRAM_ATTR readEncoderISR()
{
Encoder0.readEncoder_ISR();
}
void lcd_print(String text, int len = 26) {
tft.printf("%-*s ", len, text.c_str());
}
void setup() {
Serial.begin(115200);
/* err = nvs_flash_init();
if (err == ESP_ERR_NVS_NO_FREE_PAGES || err == ESP_ERR_NVS_NEW_VERSION_FOUND) {
// NVS partition was truncated and needs to be erased
// Retry nvs_flash_init
ESP_ERROR_CHECK(nvs_flash_erase());
err = nvs_flash_init();
}
ESP_ERROR_CHECK( err );
err = nvs_open("storage", NVS_READWRITE, &ain_trim);
if (err != ESP_OK) {
Serial.printf("Error (%s) opening NVS handle!\n", esp_err_to_name(err));
} else {
Serial.printf("Done\n");
*/
ain[0].ain_chan = AIN0;
ain[1].ain_chan = AIN1;
ain[2].ain_chan = AIN2;
ain[0].ain_rev = true;
ain[1].ain_rev = true;
/* size_t ain_size;
err = nvs_get_blob(ain_trim, "ain_trim", &ain, &ain_size);
switch (err) {
case ESP_OK:
Serial.printf("Done\n");
break;
case ESP_ERR_NVS_NOT_FOUND:
Serial.printf("The value is not initialized yet!\n");
break;
default :
Serial.printf("Error (%s) reading!\n", esp_err_to_name(err));
}
}
*/
Serial.println("Bootup...");
analogReadResolution(10);
//analogSetAttenuation(ADC_0db);
adcAttachPin(AIN0);
adcAttachPin(AIN1);
adcAttachPin(AIN2);
Serial.println("LCD...");
tft.setSPISpeed(40000000);
tft.initR(INITR_GREENTAB);
pinMode(TFT_BACKLIGHT, OUTPUT);
tft.setRotation(1);
digitalWrite(TFT_BACKLIGHT, HIGH);
delay(100);
/*uint16_t textpos_w;
uint16_t textpos_h;
char onecharstring[2] = {"X"};
tft.getTextBounds(onecharstring,0,0,&textsize_x,&textsize_y, &textpos_w, &textpos_h);*/
textsize_x = 6;
textsize_y = 8;
tft.setTextWrap(false); // Allow text to run off right edge
tft.setTextColor(ST77XX_WHITE, ST77XX_BLACK);
tft.setTextSize(1);
tft.fillScreen(ST77XX_BLACK);
Serial.print("Height ");
Serial.println(tft.height(), DEC);
Serial.print("Width ");
Serial.println(tft.width(), DEC);
Serial.print("Textsize X ");
Serial.println(textsize_x, DEC);
Serial.print("Textsize Y ");
Serial.println(textsize_y, DEC);
delay(1000);
tft.fillScreen(ST77XX_BLACK);
setCursor(0, 0);
lcd_print("PTZ-Controller");
setCursor(0, 1);
lcd_print("WIFI");
Serial.println("Wifi...");
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
Serial.println("OTA...");
setCursor(0, 1);
lcd_print("OTA");
ArduinoOTA.setHostname("ESP32_PTZ");
ArduinoOTA.setPassword(OTA_PASS);
// put your setup code here, to run once:
ArduinoOTA
.onStart([]() {
String type;
if (ArduinoOTA.getCommand() == U_FLASH)
type = "sketch";
else // U_SPIFFS
type = "filesystem";
tft.fillScreen(ST77XX_YELLOW);
delay(10);
lcd_bl(1);
setCursor(0, 0);
lcd_print("Updating " + String(type));
})
.onEnd([]() {
tft.fillScreen(ST77XX_GREEN);
setCursor(0, 1);
lcd_print("Success");
delay(1000);
})
.onProgress([](unsigned int progress, unsigned int total) {
if (total_buf == 0) total_buf = total / 100;
progress_buf = progress / total_buf;
if (progress_buf != progress_old) {
progress_old = progress_buf;
setCursor(0, 1);
tft.printf("Progress: %u%%", (progress / (total / 100)));
}
})
.onError([](ota_error_t error) {
tft.fillScreen(ST77XX_RED);
Serial.printf("Error[%u]: ", error);
setCursor(0, 1);
if (error == OTA_AUTH_ERROR) lcd_print("Auth Failed");
else if (error == OTA_BEGIN_ERROR) lcd_print("Begin Failed");
else if (error == OTA_CONNECT_ERROR) lcd_print("Connect Failed");
else if (error == OTA_RECEIVE_ERROR) lcd_print("Receive Failed");
else if (error == OTA_END_ERROR) lcd_print("End Failed");
delay(5000);
});
ArduinoOTA.begin();
WiFi.onEvent(WiFiStationDisconnected, WiFiEvent_t::ARDUINO_EVENT_WIFI_STA_DISCONNECTED);
setCursor(0, 1);
lcd_print("Outputs");
Serial.println("Outputs...");
pinMode(ENC0_BTN, INPUT_PULLUP);
pinMode(STICK_BTN, INPUT_PULLUP);
attachInterrupt(digitalPinToInterrupt(STICK_BTN), Stick_Click, RISING);
//attachInterrupt(digitalPinToInterrupt(ENC0_BTN), Enc0_Click, RISING);
Encoder0.begin();
Encoder0.setup(readEncoderISR);
Encoder0.setBoundaries(0, 20, true);
Encoder0.disableAcceleration();
//Encoder0.setAcceleration(250);
setCursor(0, 1);
lcd_print("NTP");
CE = new Timezone(CEST, CET);
timeClient.begin();
timeClient.setTimeOffset(3600);
Serial.println("Bootup done.");
setCursor(0, 1);
lcd_print("Boot done");
// http.setReuse(true);
delay(300);
// lcd.clear();
tft.fillScreen(ST77XX_BLACK);
setCursor(0, 0);
// Fill whole display:
/*tft.println("1BCDEFGHIJKLMNOPQRSTUVWXYZ");
tft.println("2BCDEFGHIJKLMNOPQRSTUVWXYZ");
tft.println("3BCDEFGHIJKLMNOPQRSTUVWXYZ");
tft.println("4BCDEFGHIJKLMNOPQRSTUVWXYZ");
tft.println("5BCDEFGHIJKLMNOPQRSTUVWXYZ");
tft.println("6BCDEFGHIJKLMNOPQRSTUVWXYZ");
tft.println("7BCDEFGHIJKLMNOPQRSTUVWXYZ");
tft.println("8BCDEFGHIJKLMNOPQRSTUVWXYZ");
tft.println("9BCDEFGHIJKLMNOPQRSTUVWXYZ");
tft.println("10CDEFGHIJKLMNOPQRSTUVWXYZ");
tft.println("11CDEFGHIJKLMNOPQRSTUVWXYZ");
tft.println("12CDEFGHIJKLMNOPQRSTUVWXYZ");
tft.println("13CDEFGHIJKLMNOPQRSTUVWXYZ");
tft.println("14CDEFGHIJKLMNOPQRSTUVWXYZ");
tft.println("15CDEFGHIJKLMNOPQRSTUVWXYZ");
tft.println("16CDEFGHIJKLMNOPQRSTUVWXYZ");*/
}
void loop() {
secs = millis() / 1000;
wifistatus = WiFi.status();
if (wifistatus == WL_CONNECTED) {
ArduinoOTA.handle();
timeClient.update();
//if (timeClient.isTimeSet()) {
// sprintf(buf, "%d-%d-%.2d %.2d:%.2d:%.2d",
// year(t), month(t), day(t), hour(t), minute(t), second(t));
}
refresh_analog();
button_loop();
if (secs - idle > TFT_IDLE_TIMEOUT) {
if (lcd_status() == 1) {
lcd_bl(0);
if (evo_client.connected()) evo_client.stop();
}
}
else {
lcd_loop();
if (lcd_status() == 0) lcd_bl(1);
}
}
int lcd_status () {
return digitalRead(TFT_BACKLIGHT);
}
void lcd_bl (int lcd_backlight) {
digitalWrite(TFT_BACKLIGHT, lcd_backlight);
}
void alive(int soft = 0) {
idle = secs;
if (soft == 0) lcd_change = 1;
}
void button_loop() {
if (Ain_clicked == 1) {
/* err = nvs_set_blob(ain_trim, "ain_trim", ain, sizeof(ain));
Serial.printf((err != ESP_OK) ? "Failed!\n" : "Done\n");
err = nvs_commit(ain_trim);
Serial.printf((err != ESP_OK) ? "Failed!\n" : "Done\n");
*/
PTZ(cam_select, 0, 0, 0);
/*
if (cam_select == 115)
cam_select = 111;
else cam_select = 115;*/
if (num_cams == 0) cam_select = 0;
else {
cam_select++;
Serial.print("Select increased...");
Serial.print(cam_select);
Serial.print(" of ");
Serial.println(num_cams);
if (cam_select > num_cams) {
Serial.println("Back to 1");
cam_select = 1;
}
}
Ain_clicked = 0;
alive();
}
if (Encoder0.encoderChanged())
{
chan = Encoder0.readEncoder();
lcd_menu = chan;
// Serial.print("Value: ");
// Serial.println(chan);
alive();
}
if (Encoder0.isEncoderButtonClicked()) {
//switch lcd_menu
switch (lcd_menu) {
case 4:
HttpSendDigest("/channels");
break;
default:
for (int i = 0; i < 3; i++) {
ain[i].ain_dead_low = ain[i].ain_raw - 25;
ain[i].ain_dead_high = ain[i].ain_raw + 25;
ain[i].ain_min = ain[i].ain_raw - 50;
ain[i].ain_max = ain[i].ain_raw + 50;
}
}
// HttpSendDigest("http://" + EVO_HOST + "/ptz/111/zoom?speed=-1", "/ptz/111/zoom?speed=1", EVO_USER, EVO_PASS);
alive();
}
}
void lcd_loop() {
//lcd_change = 1;
if (secs != secs_old) {
secs_old = secs;
fps_last = fps;
fps = 0;
lcd_change = 1;
}
if (lcd_change) {
t = CE->toLocal(timeClient.getUTCEpochMillis() / 1000);
setCursor(18, 0);
tft.printf("%.2d:%.2d:%.2d", hour(t), minute(t), second(t));;
setCursor(18, 5);
lcd_print(String(secs - idle), 6);
setCursor(0, 14);
lcd_print(String("FPS ") + String(fps_last));
setCursor(0, 0);
tft.print("CAM: ");
if (cam_select > 0) {
lcd_print(String(cam_data[cam_select].id), 4);
}
else {
lcd_print("N/A", 4);
}
switch (lcd_menu) {
case 0: {
setCursor(0, 1);
lcd_print(String("0 ") + String(ain[0].ain_raw) + String(" ") + String(ain[0].ain_val));
break;
}
case 1: {
setCursor(0, 1);
lcd_print(String("1 ") + String(ain[1].ain_raw) + String(" ") + String(ain[1].ain_val));
break;
}
case 2: {
setCursor(0, 1);
lcd_print(String("2 ") + String(ain[2].ain_raw) + String(" ") + String(ain[2].ain_val));
break;
}
case 3: {
setCursor(0, 4);
lcd_print("Cams:");
setCursor(0, 5);
lcd_print(String(num_cams));
if (num_cams > 0 && cam_select > 0) {
setCursor(0, 6);
lcd_print("Cam ID:");
setCursor(0, 7);
lcd_print(String(cam_data[cam_select].id));
setCursor(0, 8);
lcd_print("Cam Title:");
setCursor(0, 9);
lcd_print(cam_data[cam_select].title);
setCursor(0, 10);
lcd_print("Cam PTZ Features:");
setCursor(0, 11);
lcd_print(String(cam_data[cam_select].ptzCapabilities));
}
break;
}
case 4: {
setCursor(0, 1);
lcd_print("Refresh cams");
break;
}
case 5: {
setCursor(0, 1);
lcd_print("STOP");
setCursor(6, 1);
lcd_print(String(PTZ(cam_select, 0, 0, 0)));
break;
}
case 6: {
setCursor(0, 1);
lcd_print("GO");
setCursor(0, 2);
lcd_print(String("P") + String(ain[1].ain_val) + String(" T") + String(ain[0].ain_val) + String(" Z") + String(ain[2].ain_val));
break;
}
case 7: {
setCursor(0, 1);
lcd_print("STOP");
setCursor(6, 1);
lcd_print(String(PTZ(cam_select, 0, 0, 0)));
break;
}
case 9: {
setCursor(0, 1);
lcd_print(String("IP ") + String(WiFi.localIP().toString()));
break;
}
case 10: {
setCursor(0, 1);
lcd_print(String("RSSI ") + String(WiFi.RSSI()));
break;
}
case 11: {
setCursor(0, 1);
lcd_print(String("WiFi Status ") + String(WiFi.status()));
break;
}
case 12: {
setCursor(0, 1);
lcd_print(String("FPS ") + String(fps));
break;
}
default: {
setCursor(0, 1);
Serial.println(String("Menü error: ") + String(lcd_menu));
lcd_print(String("Menu error: ") + String(lcd_menu));
}
}
}
lcd_change = 0;
}
int PTZ (int cam, int P, int T, int Z) {
char httpRequestData[50];
httpCode = 299;
if (cam > 0 && cam_data[cam].ptzCapabilities > 10) {
if (P != P_old || T != T_old) {
if (P > 90) P = 100;
if (T > 90) T = 100;
if (P < -90) P = -100;
if (T < -90) T = -100;
P_old = P;
T_old = T;
float Pf = P / 100.0;
float Tf = T / 100.0;
sprintf(httpRequestData, "/ptz/%d/pantilt?pan=%.2f&tilt=%.2f", cam_data[cam].id, Pf, Tf);
httpCode = HttpSendDigest(String(httpRequestData));
lcd_change = 1;
}
if (Z != Z_old) {
if (Z > 90) Z = 100;
if (Z < -90) Z = -100;
Z_old = Z;
float Zf = Z / 100.0;
sprintf(httpRequestData, "/ptz/%d/zoom?speed=%.2f", cam_data[cam].id, Zf);
httpCode = HttpSendDigest(String(httpRequestData));
lcd_change = 1;
return httpCode;
}
}
else {
return 298; // No camera selected / PTZ-Supported
}
}
void Stick_Click() {
Ain_clicked = 1;
}
/*void Enc0_Click() {
Enc0_clicked = 1;
}*/
void setCursor(int col, int row) {
tft.setCursor(col * textsize_x, row * textsize_y);
}
void refresh_analog() {
delay(10); // Wait to reduce noise from other things.
fps++;
for (int i = 0; i < 3; i++) {
ain[i].ain_raw = analogRead(ain[i].ain_chan); // ain[i].ain_chan
if (ain[i].ain_raw > ain[i].ain_dead_high) {
ain[i].ain_val = map(ain[i].ain_raw, ain[i].ain_dead_high, ain[i].ain_max, 1, 100);
if (ain[i].ain_val > 5) alive(1);
}
else if (ain[i].ain_raw < ain[i].ain_dead_low) {
ain[i].ain_val = map(ain[i].ain_raw, ain[i].ain_min, ain[i].ain_dead_low, -100, -1);
if (ain[i].ain_val < -5) alive(1);
}
else
{
ain[i].ain_val = 0;
}
if (ain[i].ain_rev) ain[i].ain_val = ain[i].ain_val * -1;
// Serial.println("Analog Channel " + String(i) + String(" Raw ") + String(analogRead(ain[i].ain_chan)) + String(" Val: ") + String(ain[i].ain_val));
if (ain[i].ain_raw > ain[i].ain_max) {
// Serial.println(String("Value overflow @chan ") + String(i) + String(" Value ") + String(ain[i].ain_raw) + String(" Max ") + String(ain[i].ain_max));
ain[i].ain_max = ain[i].ain_raw;
}
if (ain[i].ain_raw < ain[i].ain_min) {
// Serial.println(String("Value underrun @chan ") + String(i) + String(" Value ") + String(ain[i].ain_raw) + String(" Min ") + String(ain[i].ain_min));
ain[i].ain_min = ain[i].ain_raw;
}
}
if (lcd_menu == 6) {
PTZ(cam_select, ain[1].ain_val, ain[0].ain_val, ain[2].ain_val);
// delay(333);
}
}
void WiFiStationDisconnected(WiFiEvent_t event, WiFiEventInfo_t info) {
/* Serial.println("Disconnected from WiFi access point");
Serial.print("WiFi lost connection. Reason: ");
Serial.println(info.wifi_sta_disconnected.reason);
Serial.println("Trying to Reconnect");*/
WiFi.begin(ssid, password);
}
bool HttpSendDigest(String uri)
{
int readauth = 0;
int ptz_request;
if (uri.substring(0, 9) != "/channels") ptz_request = 1; else ptz_request = 0;
int body_count = 0;
String user = EVO_USER;
String password = EVO_PASS;
char host[] = EVO_HOST;
int port = EVO_PORT;
/* Serial.print("URI: ");
Serial.println(uri);
Serial.print("Host: ");
Serial.println(host);
Serial.print("Port: ");
Serial.println(port); */
if (!evo_client.connected()) {
if (evo_client.connect(host, port)) {
Serial.println("Connect OK");
evo_client.print("GET ");
evo_client.print(uri);
evo_client.println(" HTTP/1.1");
evo_client.print("Host: ");
evo_client.println(host);
evo_client.println("User-Agent: ESP32-PTZ/1.0.0"); // Optional ?
evo_client.println("Accept: */*"); // Optional ?
evo_client.println("Accept-Encoding: identity"); // Optional ?
evo_client.println();
digest.nc = 1;
readauth = 0;
}
else {
Serial.println("Connect Error");
}
}
else {
sprintf(tmpchar, "GET:%s", uri.c_str());
//tmpstring = String("GET:") + String(uri);
// Serial.println(tmpstring);
HA2 = md5(String(tmpchar));
// Serial.println(HA2);
//digest.cnonce = String(random(8556824323));
// Serial.println("cnonce: " + String(cnonce));
// Serial.println("Calculate authResponse...");
//tmpstring = digest.HA1 + ":" + String(digest.nonce) + ":00000001:" + String(digest.cnonce) + ":" + String(digest.qop) + ":" + HA2;
sprintf(tmpchar, "%s:%s:%08d:%s:%s:%s", digest.HA1.c_str(), digest.nonce.c_str(), digest.nc, digest.cnonce.c_str(), digest.qop.c_str(), HA2.c_str());
// Serial.println(tmpstring);
authResponse = md5(String(tmpchar)); //MD5(HA1:nonce:nonceCount:cnonce:qop:HA2)
// Serial.println("authResponse: " + String(authResponse));
evo_client.print("GET ");
evo_client.print(uri);
evo_client.println(" HTTP/1.1");
evo_client.print("Host: ");
evo_client.println(host);
evo_client.println("User-Agent: ESP32-PTZ/1.0.0"); // Optional ?
evo_client.println("Accept: */*"); // Optional ?
evo_client.println("Accept-Encoding: identity"); // Optional ?
evo_client.printf("Authorization: Digest username=\"%s\", realm=\"%s\", nonce=\"%s\", uri=\"%s\", response=\"%s\", qop=%s, nc=%08d, cnonce=\"%s\", opaque=\"%s\"", user.c_str(), digest.realm.c_str(), digest.nonce.c_str(), uri.c_str(), authResponse.c_str(), digest.qop.c_str(), digest.nc, digest.cnonce, digest.opaque.c_str());
evo_client.println();
evo_client.println();
digest.nc++;
readauth = 1;
}
int em_exit = 0;
while (evo_client.connected()) {
em_exit++;
if (em_exit > 5000) {
evo_client.stop();
Serial.println("Emergency stop1 reached");
}
String response = "";
while (evo_client.available()) {
char c = evo_client.read();
response += String(c);
if (response.indexOf("\r\n") != -1) break;
}
if (response.startsWith("HTTP/1.1 401")) { // Needs to (re)-authenticate.
Serial.println("(Re)auth");
readauth = 1;
}
else if (response.startsWith("HTTP/1.1 200")) {
readauth = 2;
}
else if (response.startsWith("HTTP/1.1 204")) {
return 0;
}
else if (response.startsWith("HTTP/1.1 ")) { // Busy, Error, Full, ...
Serial.println("Unexpected response: ");
Serial.println(response);
evo_client.stop();
}
else if (response.startsWith("WWW-Authenticate")) {
digest.AuthMethod = "Digest";
tmpstring = response.substring(7 + response.indexOf("realm=\""));
digest.realm = tmpstring.substring(0, tmpstring.indexOf("\""));
tmpstring = response.substring(7 + response.indexOf("nonce=\""));
digest.nonce = tmpstring.substring(0, tmpstring.indexOf("\""));
tmpstring = response.substring(8 + response.indexOf("opaque=\""));
digest.opaque = tmpstring.substring(0, tmpstring.indexOf("\""));
tmpstring = response.substring(5 + response.indexOf("qop=\""));
digest.qop = tmpstring.substring(0, tmpstring.indexOf("\""));
/* Serial.println("AuthMethod: " + String(digest.AuthMethod));
Serial.println("realm: " + String(digest.realm));
Serial.println("nonce: " + String(digest.nonce));
Serial.println("qop: " + String(digest.qop));
Serial.println("opaque: " + String(digest.opaque));
Serial.print("Calculate HA1...");*/
digest.HA1 = md5(user + ":" + digest.realm + ":" + password);
//Serial.println(digest.HA1);
//Serial.print("Calculate HA2... ");
tmpstring = String("GET:") + String(uri);
//Serial.println(tmpstring);
HA2 = md5(tmpstring);
//Serial.println(HA2);
digest.cnonce = String(random(8556824323));
sprintf(tmpchar, "%s:%s:%08d:%s:%s:%s", digest.HA1.c_str(), digest.nonce.c_str(), digest.nc, digest.cnonce.c_str(), digest.qop.c_str(), HA2.c_str());
authResponse = md5(String(tmpchar));
// Serial.println("authResponse: " + String(authResponse));
evo_client.print("GET ");
evo_client.print(uri);
evo_client.println(" HTTP/1.1");
evo_client.print("Host: ");
evo_client.println(host);
evo_client.println("User-Agent: Wget/1.21.4"); // Optional ?
evo_client.println("Accept: */*"); // Optional ?
evo_client.println("Accept-Encoding: identity"); // Optional ?
//evo_client.println(authHeaderString);
// Serial.printf("Authorization: Digest username=\"%s\", realm=\"%s\", nonce=\"%s\", uri=\"%s\", response=\"%s\", qop=%s, nc=%08d, cnonce=\"%s\", opaque=\"%s\"", user.c_str(), digest.realm.c_str(), digest.nonce.c_str(), uri.c_str(), authResponse.c_str(), digest.qop.c_str(), digest.nc, digest.cnonce, digest.opaque.c_str());
// Serial.println();
evo_client.printf("Authorization: Digest username=\"%s\", realm=\"%s\", nonce=\"%s\", uri=\"%s\", response=\"%s\", qop=%s, nc=%08d, cnonce=\"%s\", opaque=\"%s\"", user.c_str(), digest.realm.c_str(), digest.nonce.c_str(), uri.c_str(), authResponse.c_str(), digest.qop.c_str(), digest.nc, digest.cnonce, digest.opaque.c_str());
evo_client.println();
evo_client.println();
digest.nc++;
}
else if (response.length() == 2) {
// Serial.println("Auth Header done");
if (readauth == 0) {
evo_client.stop();
}
else if (readauth == 2) {
// Serial.println("Request Header done");
if (ptz_request == 1) {
// Serial.println("PTZ Request done");
return 0;
}
readauth = 3;
}
else {
// Serial.println("End of ...");
// Serial.println(readauth);
}
}
else if (readauth == 3) {
body_count++;
if (body_count > 100) {
evo_client.stop();
Serial.println("Emergency stop B reached");
}
if (response.startsWith("{\"added")) { // JSON, we only need the "added" json, not the following "updated" ones
StaticJsonDocument<200> filter;
filter["added"]["channels"][0]["id"] = true;
filter["added"]["channels"][0]["title"] = true;
filter["added"]["channels"][0]["ptzCapabilities"] = true;
deserializeJson(doc, response, DeserializationOption::Filter(filter));
Serial.print("Got ");
Serial.print(doc["added"]["channels"].size());
Serial.println(" Cameras");
JsonArray added_channels = doc["added"]["channels"];
num_cams = doc["added"]["channels"].size();
for (int i = 0; i < added_channels.size(); i++) {
JsonObject channel_data = added_channels[i];
cam_data[i + 1].id = channel_data["id"];
cam_data[i + 1].title = String((const char*) channel_data["title"]);
cam_data[i + 1].ptzCapabilities = channel_data["ptzCapabilities"];
Serial.print("Camera ");
Serial.print(i);
Serial.println(":");
Serial.println((int)channel_data["id"]);
Serial.println((const char*)channel_data["title"]);
Serial.println((int)channel_data["ptzCapabilities"]);
}
serializeJsonPretty(doc, Serial);
}
else if (response.length() > 0) {
Serial.println("Response: ");
Serial.println(response);
}
//Serial.println("Body received");
}
else if (response.length() > 0) {
// Serial.println("Response: ");
// Serial.println(response);
}
}
// Serial.println("---Done---");
return false;
}
String md5(String text) {
char cstr[150]; // 121 minimum
text.toCharArray(cstr, text.length() + 1);
unsigned char* hash;
hash = MD5::make_hash(cstr);
char *md5str = MD5::make_digest(hash, 16);
return md5str;
}