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[CSE] More verbose output

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This commit is contained in:
Tomaz Canabrava 2017-12-12 21:50:30 +01:00
parent 25734afd39
commit 9916583ffa
1 changed files with 21 additions and 10 deletions
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31
src/libsync/clientsideencryption.cpp
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@ -43,6 +43,7 @@ namespace OCC
{ {
Q_LOGGING_CATEGORY(lcCse, "sync.clientsideencryption", QtInfoMsg) Q_LOGGING_CATEGORY(lcCse, "sync.clientsideencryption", QtInfoMsg)
Q_LOGGING_CATEGORY(lcCseDecryption, "e2e", QtInfoMsg)
QString baseUrl(){ QString baseUrl(){
return QStringLiteral("ocs/v2.php/apps/end_to_end_encryption/api/v1/"); return QStringLiteral("ocs/v2.php/apps/end_to_end_encryption/api/v1/");
@ -479,53 +480,63 @@ QByteArray EncryptionHelper::decryptStringAsymmetric(EVP_PKEY *privateKey, const
const QByteArray rawData = QByteArray::fromBase64(data); const QByteArray rawData = QByteArray::fromBase64(data);
qCInfo(lcCseDecryption()) << "Start to work the decryption.";
auto ctx = EVP_PKEY_CTX_new(privateKey, ENGINE_get_default_RSA()); auto ctx = EVP_PKEY_CTX_new(privateKey, ENGINE_get_default_RSA());
if (!ctx) { if (!ctx) {
qCInfo(lcCse()) << "Could not create the PKEY context."; qCInfo(lcCseDecryption()) << "Could not create the PKEY context.";
handleErrors();
exit(1); exit(1);
} }
err = EVP_PKEY_decrypt_init(ctx); err = EVP_PKEY_decrypt_init(ctx);
if (err <= 0) { if (err <= 0) {
qCInfo(lcCse()) << "Could not init the decryption of the metadata"; qCInfo(lcCseDecryption()) << "Could not init the decryption of the metadata";
handleErrors();
exit(1); exit(1);
} }
if (EVP_PKEY_CTX_set_rsa_padding(ctx, RSA_PKCS1_OAEP_PADDING) <= 0) { if (EVP_PKEY_CTX_set_rsa_padding(ctx, RSA_PKCS1_OAEP_PADDING) <= 0) {
qCInfo(lcCse()) << "Error setting the encryption padding."; qCInfo(lcCseDecryption()) << "Error setting the encryption padding.";
handleErrors();
exit(1); exit(1);
} }
if (EVP_PKEY_CTX_set_rsa_oaep_md(ctx, EVP_sha256()) <= 0) { if (EVP_PKEY_CTX_set_rsa_oaep_md(ctx, EVP_sha256()) <= 0) {
qCInfo(lcCse()) << "Error setting OAEP SHA 256"; qCInfo(lcCseDecryption()) << "Error setting OAEP SHA 256";
handleErrors();
exit(1); exit(1);
} }
if (EVP_PKEY_CTX_set_rsa_mgf1_md(ctx, EVP_sha256()) <= 0) { if (EVP_PKEY_CTX_set_rsa_mgf1_md(ctx, EVP_sha256()) <= 0) {
qCInfo(lcCse()) << "Error setting MGF1 padding"; qCInfo(lcCseDecryption()) << "Error setting MGF1 padding";
handleErrors();
exit(1); exit(1);
} }
size_t outlen = 0; size_t outlen = 0;
err = EVP_PKEY_decrypt(ctx, NULL, &outlen, (unsigned char *)rawData.constData(), rawData.size()); err = EVP_PKEY_decrypt(ctx, NULL, &outlen, (unsigned char *)rawData.constData(), rawData.size());
if (err <= 0) { if (err <= 0) {
qCInfo(lcCse()) << "Could not determine the buffer length"; qCInfo(lcCseDecryption()) << "Could not determine the buffer length";
handleErrors();
exit(1); exit(1);
} else { } else {
qCInfo(lcCse()) << "Size of output is: " << outlen; qCInfo(lcCseDecryption()) << "Size of output is: " << outlen;
qCInfo(lcCseDecryption()) << "Size of data is: " << data.size();
} }
unsigned char *out = (unsigned char *) OPENSSL_malloc(outlen); unsigned char *out = (unsigned char *) OPENSSL_malloc(outlen);
if (!out) { if (!out) {
qCInfo(lcCse()) << "Could not alloc space for the decrypted metadata"; qCInfo(lcCseDecryption()) << "Could not alloc space for the decrypted metadata";
handleErrors();
exit(1); exit(1);
} }
if (EVP_PKEY_decrypt(ctx, out, &outlen, (unsigned char *)rawData.constData(), rawData.size()) <= 0) { if (EVP_PKEY_decrypt(ctx, out, &outlen, (unsigned char *)rawData.constData(), rawData.size()) <= 0) {
qCInfo(lcCse()) << "Could not decrypt the data."; qCInfo(lcCseDecryption()) << "Could not decrypt the data.";
ERR_print_errors_fp(stdout); // This line is not printing anything.
exit(1); exit(1);
} else { } else {
qCInfo(lcCse()) << "data decrypted successfully"; qCInfo(lcCseDecryption()) << "data decrypted successfully";
} }
const auto ret = std::string((char*) out, outlen); const auto ret = std::string((char*) out, outlen);