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vshymanskyy / TinyGSM

A small Arduino library for GSM modules, that just works
GNU Lesser General Public License v3.0
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HTTPS problem with tinyGSM Esp32-sim800l #465

Closed ncastellonb closed 3 years ago

ncastellonb commented 3 years ago

Hi! im new using gsm conection and I have a problem connection this to mi server with httpS.

`/** *

// See all AT commands, if wanted // #define DUMP_AT_COMMANDS // Define the serial console for debug prints, if needed

define TINY_GSM_DEBUG SerialMon

// Range to attempt to autobaud

define GSM_AUTOBAUD_MIN 9600

define GSM_AUTOBAUD_MAX 115200

// Add a reception delay - may be needed for a fast processor at a slow baud rate // #define TINY_GSM_YIELD() { delay(2); } // Uncomment this if you want to use SSL // #define USE_SSL // Define how you're planning to connect to the internet

define TINY_GSM_USE_GPRS true

define TINY_GSM_USE_WIFI false

// set GSM PIN, if any

define GSM_PIN ""

// Your GPRS credentials, if any

define IP5306_ADDR 0x75

define IP5306_REG_SYS_CTL0 0x00

const char apn[] = "imovil.entelpcs.cl"; const char gprsUser[] = "entelpcs"; const char gprsPass[] = "entelpcs"; // Your WiFi connection credentials, if applicable const char wifiSSID[] = "YourSSID"; const char wifiPass[] = "YourWiFiPass"; // Server details const char server[] = "api.citylink.cl"; const char resource[] = "/metrics";

include

include

// Just in case someone defined the wrong thing..

if TINY_GSM_USE_GPRS && not defined TINY_GSM_MODEM_HAS_GPRS

undef TINY_GSM_USE_GPRS

undef TINY_GSM_USE_WIFI

define TINY_GSM_USE_GPRS false

define TINY_GSM_USE_WIFI true

endif

if TINY_GSM_USE_WIFI && not defined TINY_GSM_MODEM_HAS_WIFI

undef TINY_GSM_USE_GPRS

undef TINY_GSM_USE_WIFI

define TINY_GSM_USE_GPRS true

define TINY_GSM_USE_WIFI false

endif

ifdef DUMP_AT_COMMANDS

include

StreamDebugger debugger(SerialAT, SerialMon); TinyGsm modem(debugger);

else

TinyGsm modem(SerialAT);

endif

ifdef USE_SSL

TinyGsmClientSecure client(modem); const int port = 443;

else

TinyGsmClientSecure client(modem); const int port = 80;

endif

define MODEM_RST 5

define MODEM_PWKEY 4

define MODEM_POWER_ON 23

define MODEM_TX 27

define MODEM_RX 26

define I2C_SDA 21

define I2C_SCL 22

TwoWire I2CPower = TwoWire(0);

void setup() { // Set console baud rate SerialMon.begin(115200); I2CPower.begin(I2C_SDA, I2C_SCL, 400000); delay(10); // !!!!!!!!!!! // Set your reset, enable, power pins here // !!!!!!!!!!! SerialMon.println("Wait..."); // Set modem reset, enable, power pins pinMode(MODEM_PWKEY, OUTPUT); pinMode(MODEM_RST, OUTPUT); pinMode(MODEM_POWER_ON, OUTPUT); digitalWrite(MODEM_PWKEY, LOW); digitalWrite(MODEM_RST, HIGH); digitalWrite(MODEM_POWER_ON, HIGH); // Set GSM module baud rate SerialAT.begin(115200, SERIAL_8N1, MODEM_RX, MODEM_TX); // SerialAT.begin(9600); delay(6000); // Restart takes quite some time // To skip it, call init() instead of restart() SerialMon.println("Initializing modem..."); modem.restart(); // modem.init(); String modemInfo = modem.getModemInfo(); SerialMon.print("Modem Info: "); SerialMon.println(modemInfo);

if TINY_GSM_USE_GPRS

// Unlock your SIM card with a PIN if needed if ( GSM_PIN && modem.getSimStatus() != 3 ) { modem.simUnlock(GSM_PIN); }

endif

} void loop() {

if TINY_GSM_USE_WIFI

// Wifi connection parameters must be set before waiting for the network SerialMon.print(F("Setting SSID/password...")); if (!modem.networkConnect(wifiSSID, wifiPass)) { SerialMon.println(" fail"); delay(10000); return; } SerialMon.println(" success");

endif

if TINY_GSM_USE_GPRS && defined TINY_GSM_MODEM_XBEE

// The XBee must run the gprsConnect function BEFORE waiting for network! modem.gprsConnect(apn, gprsUser, gprsPass);

endif

SerialMon.print("Waiting for network..."); if (!modem.waitForNetwork()) { SerialMon.println(" fail"); delay(10000); return; } SerialMon.println(" success"); if (modem.isNetworkConnected()) { SerialMon.println("Network connected"); }

if TINY_GSM_USE_GPRS

// GPRS connection parameters are usually set after network registration SerialMon.print(F("Connecting to ")); SerialMon.print(apn); if (!modem.gprsConnect(apn, gprsUser, gprsPass)) { SerialMon.println(" fail"); delay(10000); return; } SerialMon.println(" success"); if (modem.isGprsConnected()) { SerialMon.println("GPRS connected"); }

endif

SerialMon.print("Connecting to "); SerialMon.println(server); if (!client.connect(server, port)) { SerialMon.println(" fail"); delay(10000); return; } SerialMon.println(" success"); // Make a HTTP GET request: SerialMon.println("Performing HTTP GET request..."); client.print(String("GET ") + resource + " HTTP/1.1\r\n"); client.print(String("Host: ") + server + "\r\n"); client.print("Connection: close\r\n\r\n"); client.println(); uint32_t timeout = millis(); while (client.connected() && millis() - timeout < 10000L) { // Print available data while (client.available()) { char c = client.read(); SerialMon.print(c); timeout = millis(); } } SerialMon.println(); // Shutdown client.stop(); SerialMon.println(F("Server disconnected"));

if TINY_GSM_USE_WIFI

modem.networkDisconnect();
SerialMon.println(F("WiFi disconnected"));

endif

if TINY_GSM_USE_GPRS

modem.gprsDisconnect();
SerialMon.println(F("GPRS disconnected"));

endif

// Do nothing forevermore while (true) { delay(1000); } }`

Im us gin the example of TinyGsm with changes to run the esp32 module. Please if any know what im doing wrong I will be very grateful.

Regards

SRGDamia1 commented 3 years ago

Unless you have it defined in a build flag, you need to un-comment (remove the two slashes before) #define USE_SSL in your code.

Not all versions or firmwares of the SIM800 support SSL/HTTPS. It's very hard to say if yours will. Different people have had successes and failures with modules that appear to be identical.

Un-comment #define DUMP_AT_COMMANDS and watch the output as the program runs for the command AT+CIPSSL=1. If you see ERROR after that command, you're module definitely doesn't support SSL and there's no reason to keep trying. If you see OK there but the module doesn't connect, you can try adding a #define TINY_GSM_SSL_CLIENT_AUTHENTICATION to the top of your code in case your site requires it. If that still doesn't work, you might be able to get it to work by uploading your own certificate, if you have one. (Look in the examples folder for an example of this.) If it still doesn't work after that, you're probably just out of luck.

Toumal commented 3 years ago

My device responds OK to AT+CIPSSL=1 but there's no joy connecting to any https server. Enabling SSL client authentication does not help (why would it?) Attempts to disable SSL cert checks also fail. Does anyone have a working example of a https connection using TinyGSM?

SRGDamia1 commented 3 years ago

The HTTPS example in this library does work. The problem is the SIM800. As I said before, and as numerous issues on this subject attest, people have had very mixed results with getting SSL to work at all on the SIM800, regardless of whether the module itself reports that it will support it. If you're module is really going to support it, then the already existing example and suggestions I gave are all you need. If those don't work, your module is probably never going to support SSL natively.

Other people have had success using a TinyGSM insecure client with an alternate SSL library providing the security. See this issue: https://github.com/vshymanskyy/TinyGSM/issues/406