f48a3602c6
Result : fails. Reason : password callback is never called. With default pinentry mode, the password is requested normally and the private key is exported. But this can't be done on a web server. Enclosed in #ifdef DEVTIME.
134 lines
2.9 KiB
C++
134 lines
2.9 KiB
C++
/*
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* File: GpgMECWorker.cpp
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* Author: SET - nmset@yandex.com
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* License : LGPL v2.1
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* Copyright SET - © 2019
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*
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* Created on 14 octobre 2019, 15:22
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*/
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#include "GpgMECWorker.h"
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#ifdef DEVTIME
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/**
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* This callback is never called when exporting private keys.
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* From gpgme-1.14.0/tests/run-support.h
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*/
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gpgme_error_t passphrase_cb(void *opaque, const char *uid_hint, const char *passphrase_info,
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int last_was_bad, int fd)
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{
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int res;
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char pass[] = "test_pwd\n";
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int passlen = strlen(pass);
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int off = 0;
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(void) opaque;
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(void) uid_hint;
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(void) passphrase_info;
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(void) last_was_bad;
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do
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{
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res = gpgme_io_write(fd, &pass[off], passlen - off);
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if (res > 0)
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off += res;
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}
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while (res > 0 && off != passlen);
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return off == passlen ? 0 : gpgme_error_from_errno(errno);
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}
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#endif
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GpgMECWorker::GpgMECWorker()
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{
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gpgme_error_t c_err = gpgme_new(&c_ctx);
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}
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GpgMECWorker::~GpgMECWorker()
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{
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gpgme_release(c_ctx);
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}
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bool GpgMECWorker::DeleteKey(const char * fpr, bool secret, GpgME::Error& e)
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{
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gpgme_key_t c_key;
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gpgme_error_t c_err = gpgme_get_key(c_ctx, fpr, &c_key, secret);
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if (c_key == NULL)
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{
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e = GpgME::Error::fromCode(c_err);
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return false;
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}
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int flags = secret ? GPGME_DELETE_ALLOW_SECRET | GPGME_DELETE_FORCE : GPGME_DELETE_FORCE;
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c_err = gpgme_op_delete_ext(c_ctx, c_key, flags);
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if (c_err != 0)
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{
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e = GpgME::Error::fromCode(c_err);
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return false;
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}
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return true;
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}
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#ifdef DEVTIME
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/**
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* Much code here is obtained from gpgme-1.14.0/tests/run-export.c
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* @param fpr
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* @param e
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* @return
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*/
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bool GpgMECWorker::ExportPrivateKey(const char* fpr, GpgME::Error& e)
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{
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gpgme_key_t c_key;
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gpgme_data_t out;
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gpgme_set_armor(c_ctx, 1);
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gpgme_error_t c_err = gpgme_get_key(c_ctx, fpr, &c_key, true);
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if (c_key == NULL)
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{
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e = GpgME::Error::fromCode(c_err);
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return false;
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}
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FILE * kFp = fopen("/tmp/data", "wb");
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if (kFp == NULL)
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return false;
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c_err = gpgme_data_new_from_stream(&out, kFp);
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if (c_err != 0)
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{
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fclose(kFp);
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e = GpgME::Error::fromCode(c_err);
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return false;
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}
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gpgme_key_t aKeys[2];
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aKeys[0] = c_key;
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aKeys[1] = NULL;
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c_err = gpgme_set_pinentry_mode(c_ctx, GPGME_PINENTRY_MODE_LOOPBACK);
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if (c_err != 0)
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{
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fclose(kFp);
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e = GpgME::Error::fromCode(c_err);
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return false;
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}
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gpgme_set_passphrase_cb(c_ctx, passphrase_cb, NULL);
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gpgme_export_mode_t flags = GPGME_EXPORT_MODE_SECRET;
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c_err = gpgme_op_export_keys(c_ctx, aKeys, flags, out);
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if (c_err != 0)
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{
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fclose(kFp);
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gpgme_data_release(out);
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e = GpgME::Error::fromCode(c_err);
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return false;
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}
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fflush(NULL);
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fclose(kFp);
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gpgme_data_release(out);
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return true;
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}
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#endif
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