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Make CertStore natively use File interface (#6131)

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__This is a breaking change, but the header and example did warn
everyone that this API was in flux due to the incompatible SD and SPIFFS
File implementations.__

BearSSL CertStores now simply need a filesystem and the names of the
data (generated on-chip) and archive (uploaded by user) files on it.
No more need to roll your own virtual CertStoreFile class.

Update the library, examples, and device test.
This commit is contained in:
Earle F. Philhower, III
2019-05-30 12:53:03 -07:00
committed by GitHub
parent 44bda41cf6
commit 8859b818d8
7 changed files with 70 additions and 225 deletions
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40
tests/device/test_BearSSL/test_BearSSL.ino
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@ -29,44 +29,6 @@ void setClock();
// the WiFiClientBearSSLs are present.
BearSSL::CertStore certStore;
// NOTE: The CertStoreFile virtual class may migrate to a templated
// model in a future release. Expect some changes to the interface,
// no matter what, as the SD and SPIFFS filesystem get unified.
class SPIFFSCertStoreFile : public BearSSL::CertStoreFile {
public:
SPIFFSCertStoreFile(const char *name) {
_name = name;
};
virtual ~SPIFFSCertStoreFile() override {};
// The main API
virtual bool open(bool write = false) override {
_file = SPIFFS.open(_name, write ? "w" : "r");
return _file;
}
virtual bool seek(size_t absolute_pos) override {
return _file.seek(absolute_pos, SeekSet);
}
virtual ssize_t read(void *dest, size_t bytes) override {
return _file.readBytes((char*)dest, bytes);
}
virtual ssize_t write(void *dest, size_t bytes) override {
return _file.write((uint8_t*)dest, bytes);
}
virtual void close() override {
_file.close();
}
private:
File _file;
const char *_name;
};
SPIFFSCertStoreFile certs_idx("/certs.idx"); // Generated by the ESP8266
SPIFFSCertStoreFile certs_ar("/certs.ar"); // Uploaded by the user
void setup()
{
Serial.begin(115200);
@ -79,7 +41,7 @@ void setup()
}
setClock();
SPIFFS.begin();
int numCerts = certStore.initCertStore(&certs_idx, &certs_ar);
int numCerts = certStore.initCertStore(SPIFFS, "/certs.idx", "/certs.ar");
Serial.printf("Number of CA certs read: %d\n", numCerts);
if (numCerts == 0) {
Serial.printf("No certs found. Did you run certs-from-mozill.py and upload the SPIFFS directory before running?\n");