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Add certificate bundle support #17

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merged 1 commit into from
Oct 16, 2023
Merged

Add certificate bundle support #17

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16 changes: 15 additions & 1 deletion src/Arduino_ESP32_OTA.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,7 @@ Arduino_ESP32_OTA::Arduino_ESP32_OTA()
,_ota_size(0)
,_crc32(0)
,_ca_cert{amazon_root_ca}
,_ca_cert_bundle{nullptr}
{

}
Expand Down Expand Up @@ -85,6 +86,13 @@ void Arduino_ESP32_OTA::setCACert (const char *rootCA)
}
}

void Arduino_ESP32_OTA::setCACertBundle (const uint8_t * bundle)
{
if(bundle != nullptr) {
_ca_cert_bundle = bundle;
}
}

uint8_t Arduino_ESP32_OTA::read_byte_from_network()
{
bool is_http_data_timeout = false;
Expand Down Expand Up @@ -118,7 +126,13 @@ int Arduino_ESP32_OTA::download(const char * ota_url)
port = 80;
} else if (url.protocol_ == "https") {
_client = new WiFiClientSecure();
static_cast<WiFiClientSecure*>(_client)->setCACert(_ca_cert);
if (_ca_cert != nullptr) {
static_cast<WiFiClientSecure*>(_client)->setCACert(_ca_cert);
} else if (_ca_cert_bundle != nullptr) {
static_cast<WiFiClientSecure*>(_client)->setCACertBundle(_ca_cert_bundle);
} else {
DEBUG_VERBOSE("%s: CA not configured for download client");
}
port = 443;
} else {
DEBUG_ERROR("%s: Failed to parse OTA URL %s", __FUNCTION__, ota_url);
Expand Down
2 changes: 2 additions & 0 deletions src/Arduino_ESP32_OTA.h
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Original file line number Diff line number Diff line change
Expand Up @@ -80,6 +80,7 @@ class Arduino_ESP32_OTA

Arduino_ESP32_OTA::Error begin();
void setCACert (const char *rootCA);
void setCACertBundle(const uint8_t * bundle);
int download(const char * ota_url);
uint8_t read_byte_from_network();
void write_byte_to_flash(uint8_t data);
Expand All @@ -93,6 +94,7 @@ class Arduino_ESP32_OTA
size_t _ota_size;
uint32_t _crc32;
const char * _ca_cert;
const uint8_t * _ca_cert_bundle;
};

#endif /* ARDUINO_ESP32_OTA_H_ */