[E][HTTPClient.cpp:251] beginInternal(): failed to parse protocol

[simogaspa84]

Hi.. I created a web hosting account here..

https://systelfota.000webhostapp.com/

I am trying to update the fw after I have created the json file and uploaded with the .bin..

Running the example with https but not certificate I get
[E][HTTPClient.cpp:251] beginInternal(): failed to parse protocol

Can you tell me the meaning of this error ?

Thanks

#include <esp32fota.h>
#include <WiFi.h>

// Change to your WiFi credentials
const char *ssid = "";
const char *password = "";

// esp32fota esp32fota("<Type of Firme for this device>", <this version>, <validate signature>);
esp32FOTA esp32FOTA("esp32-fota-http", 1, false, true);

void setup_wifi()
{
  delay(10);
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED)
  {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.println(WiFi.localIP());
}

/**
 * @brief  Function to execute the setup generated by the arduino framework
 * @param  None
 * @retval None
 */
void setup(void)
{
  esp32FOTA.setManifestURL("https://systelfota.000webhostapp.com/fota.json");
  Serial.begin(115200);
  setup_wifi();
}
/**
 * @brief  Function to execute in loop generated by the arduino framework
 * @param  None
 * @retval None
 */
void loop(void)
{
  bool updatedNeeded = esp32FOTA.execHTTPcheck();
  if (updatedNeeded)
  {
    esp32FOTA.execOTA();
  }

  delay(2000);
}

[tobozo]

thanks for your report, looks like a bug in the library code

until this is fixed, one way to avoid the bug is to use a define or static variable to store the URL.

String my_manifest_url = "https://systelfota.000webhostapp.com/fota.json";

void setup(void)
{
  esp32FOTA.setManifestURL( my_manifest_url );
  Serial.begin(115200);
  setup_wifi();
}

[simogaspa84]

Thanks @tobozo for your suggestion.. I will try it now.. I am not sure that everything is set correctly So i put here the json ..

{
    "type": "esp32-fota-http",
    "version": "2",
    "url": "https://systelfota.000webhostapp.com/update.bin"
}

Can you check?

I don't know if the web hosting provider is set correctly..

I have tried now with your suggestion..

always the same..

[E][HTTPClient.cpp:251] beginInternal(): failed to parse protocol
[E][HTTPClient.cpp:251] beginInternal(): failed to parse protocol

// Change to your WiFi credentials
const char *ssid = "zzzzz";
const char *password = "xxxx";

String my_manifest_url = "https://systelfota.000webhostapp.com/fota.json";

// esp32fota esp32fota("<Type of Firme for this device>", <this version>, <validate signature>);
esp32FOTA esp32FOTA("esp32-fota-http", 1, false, true);

void setup_wifi()
{
  delay(10);
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED)
  {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.println(WiFi.localIP());
}

/**
 * @brief  Function to execute the setup generated by the arduino framework
 * @param  None
 * @retval None
 */
void setup(void)
{
  esp32FOTA.setManifestURL(my_manifest_url);
  Serial.begin(115200);
  setup_wifi();
}
/**
 * @brief  Function to execute in loop generated by the arduino framework
 * @param  None
 * @retval None
 */
void loop(void)
{
  bool updatedNeeded = esp32FOTA.execHTTPcheck();
  if (updatedNeeded)
  {
    esp32FOTA.execOTA();
  }

  delay(2000);
}

Thanks a lot

[simogaspa84]

@tobozo please can you suggest a web hosting provider easy to configure to try all examples in your lib?
Thanks a lot

[tobozo]

@simogaspa84 your config looks good, can you try this sketch?

#include <esp32fota.h> // fota pulls WiFi library

const char *ssid = "zzzzz";
const char *password = "xxxx";

const char* firmware_name   = "esp32-fota-http";
const bool check_signature  = false;
const bool disable_security = true;

#define FOTA_URL "https://systelfota.000webhostapp.com/fota.json"

int firmware_version_major  = 2;
int firmware_version_minor  = 0;
int firmware_version_patch  = 0;

esp32FOTA FOTA; // empty constructor

void setup_wifi()
{
  delay(10);
  Serial.print("Connecting to ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED)
  {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println(WiFi.localIP());
}

void setup(void)
{
  Serial.begin(115200);
  {
    auto cfg = FOTA.getConfig();
    cfg.name         = firmware_name;
    cfg.manifest_url = FOTA_URL;
    cfg.sem          = SemverClass( firmware_version_major, firmware_version_minor, firmware_version_patch );
    cfg.check_sig    = check_signature;
    cfg.unsafe       = disable_security;
    //cfg.root_ca      = MyRootCA;
    //cfg.pub_key      = MyRSAKey;
    FOTA.setConfig( cfg );
  }
  setup_wifi();
}

void loop(void)
{
  bool updatedNeeded = FOTA.execHTTPcheck();
  if (updatedNeeded)
  {
    FOTA.execOTA();
  }
  delay(2000);
}

[simogaspa84]

hi @tobozo .. thanks for your code..

I have tried but it is failing

entry 0x400806a8 Connecting to Systel-Guest ..... 172.16.10.67 Error on HTTP request (httpCode=404) Error on HTTP request (httpCode=404) Error on HTTP request (httpCode=404) Error on HTTP request (httpCode=404) Error on HTTP request (httpCode=404) Error on HTTP request (httpCode=404) Error on HTTP request (httpCode=404) Error on HTTP request (httpCode=404)

[simogaspa84]

ok it was in the wrong location the json and the .bin file..
Moving them inside the right folder gives me

172.16.10.67
[E][WiFiClient.cpp:258] connect(): socket error on fd 55, errno: 113, "Software caused connection abort"
[E][WiFiClient.cpp:258] connect(): socket error on fd 57, errno: 113, "Software caused connection abort"
[E][WiFiClient.cpp:258] connect(): socket error on fd 59, errno: 113, "Software caused connection abort"
[E][WiFiClient.cpp:258] connect(): socket error on fd 61, errno: 113, "Software caused connection abort"
[E][WiFiClient.cpp:258] connect(): socket error on fd 63, errno: 113, "Software caused connection abort"
[E][WiFiClient.cpp:258] connect(): socket error on fd 55, errno: 113, "Software caused connection abort"

Any ideas @tobozo ?

[tobozo]

maybe give it a domain name instead of an IP address when calling HTTPS urls, or just use plain HTTP ? 😉

[simogaspa84]

Sorry @tobozo .. I don't understand.. which is the mistake?
What should i do or change?
Thanks again

[simogaspa84]

Hi @tobozo do i have to do something in the web hosting portal?
Can i keep the code in the same way?

Thanks a lot for your kind reply

[tobozo]

I don't know but 172.16.10.67 seems like a C class address (private) and those can't be routed on the internet, the domain name you specified earlier resolves to 145.14.145.212 and I don't see it in the logs, so maybe the failure is a consequence of that.

[simogaspa84]

ok @tobozo so what do you suggest to do ?
Thanks

[tobozo]

I suggest you build more trust with yourself and stop relying on external assistance to disentangle local problems.
If you managed to get this far then you already have the skills to troubleshoot that, it's just a matter of not giving up :-)

[vortigont]

BTW, I've faced same issues. Looks like constructor with String object as input parameter turns into dangling pointer with const char * in cfg struct.
A suggested fix is to use const char overloads and pass String obj by reference - fix is included in PR #100

[tobozo]

indeed that was goofy, sorry about that 🙇

looking at your PR: I didn't know this notation, how does it compare to String blah=""; ?

    String UpdateURL((char *)0);
    String PartitionLabel((char *)0);

[vortigont]

String UpdateURL((char *)0);
this could be useful sometimes if you need a real empty String obj.

String blah=""; creates the obj with default ctor, than assigns a rvalue "" to it (which is const char*).
A default String preallocates some memory in advance (if that has not been changed recently).
And default c-tor for String is String(const char *cstr = ""); :))) So it's just unnecessary duplication, String blah; will end up with the same.

String UpdateURL((char *)0); creates String obj using c-tor with zero byte argument, so it ends up creating a really empty String in-place using move under the hood (as I remember it).

Mostly useful if combined with strobj.reserve() later to avoid extra mem allocation on object creation.