diff options
Diffstat (limited to 'lang/cpp/src/gpgrevokekeyeditinteractor.cpp')
| -rw-r--r-- | lang/cpp/src/gpgrevokekeyeditinteractor.cpp | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/lang/cpp/src/gpgrevokekeyeditinteractor.cpp b/lang/cpp/src/gpgrevokekeyeditinteractor.cpp new file mode 100644 index 00000000..a90b5934 --- /dev/null +++ b/lang/cpp/src/gpgrevokekeyeditinteractor.cpp @@ -0,0 +1,212 @@ +/* + gpgrevokekeyeditinteractor.cpp - Edit Interactor to revoke own OpenPGP keys + Copyright (c) 2022 g10 Code GmbH + Software engineering by Ingo Klöcker <[email protected]> + + This file is part of GPGME++. + + GPGME++ is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + GPGME++ is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + along with GPGME++; see the file COPYING.LIB. If not, write to the + Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#ifdef HAVE_CONFIG_H + #include "config.h" +#endif + +#include "gpgrevokekeyeditinteractor.h" + +#include "error.h" + +#include <gpgme.h> + +#include <sstream> +#include <vector> + +// avoid conflict (msvc) +#ifdef ERROR +# undef ERROR +#endif + +using namespace GpgME; + +class GpgRevokeKeyEditInteractor::Private +{ + enum { + START = EditInteractor::StartState, + COMMAND, + CONFIRM_REVOKING_ENTIRE_KEY, + REASON_CODE, + REASON_TEXT, + // all these free slots belong to REASON_TEXT, too; we increase state() + // by one for each line of text, so that action() is called + REASON_TEXT_DONE = REASON_TEXT + 1000, + CONFIRM_REASON, + QUIT, + CONFIRM_SAVE, + + ERROR = EditInteractor::ErrorState + }; + + GpgRevokeKeyEditInteractor *const q = nullptr; + +public: + Private(GpgRevokeKeyEditInteractor *q) + : q{q} + , reasonCode{"0"} + { + } + + const char *action(Error &err) const; + unsigned int nextState(unsigned int statusCode, const char *args, Error &err); + + std::string reasonCode; + std::vector<std::string> reasonLines; + int nextLine = -1; +}; + +const char *GpgRevokeKeyEditInteractor::Private::action(Error &err) const +{ + switch (const auto state = q->state()) { + case COMMAND: + return "revkey"; + case CONFIRM_REVOKING_ENTIRE_KEY: + return "Y"; + case REASON_CODE: + return reasonCode.c_str(); + case REASON_TEXT_DONE: + return ""; + case CONFIRM_REASON: + return "Y"; + case QUIT: + return "quit"; + case CONFIRM_SAVE: + return "Y"; + case START: + return nullptr; + default: + if (state >= REASON_TEXT && state < REASON_TEXT_DONE) { + return reasonLines[nextLine].c_str(); + } + // fall through + case ERROR: + err = Error::fromCode(GPG_ERR_GENERAL); + return nullptr; + } +} + +unsigned int GpgRevokeKeyEditInteractor::Private::nextState(unsigned int status, const char *args, Error &err) +{ + using std::strcmp; + + static const Error GENERAL_ERROR = Error::fromCode(GPG_ERR_GENERAL); + + if (q->needsNoResponse(status)) { + return q->state(); + } + + switch (const auto state = q->state()) { + case START: + if (status == GPGME_STATUS_GET_LINE && + strcmp(args, "keyedit.prompt") == 0) { + return COMMAND; + } + err = GENERAL_ERROR; + return ERROR; + case COMMAND: + if (status == GPGME_STATUS_GET_BOOL && + strcmp(args, "keyedit.revoke.subkey.okay") == 0) { + return CONFIRM_REVOKING_ENTIRE_KEY; + } + err = GENERAL_ERROR; + return ERROR; + case CONFIRM_REVOKING_ENTIRE_KEY: + if (status == GPGME_STATUS_GET_LINE && + strcmp(args, "ask_revocation_reason.code") == 0) { + return REASON_CODE; + } + err = GENERAL_ERROR; + return ERROR; + case REASON_CODE: + if (status == GPGME_STATUS_GET_LINE && + strcmp(args, "ask_revocation_reason.text") == 0) { + nextLine++; + return nextLine < reasonLines.size() ? REASON_TEXT : REASON_TEXT_DONE; + } + err = GENERAL_ERROR; + return ERROR; + default: + if (state >= REASON_TEXT && state < REASON_TEXT_DONE) { + if (status == GPGME_STATUS_GET_LINE && + strcmp(args, "ask_revocation_reason.text") == 0) { + nextLine++; + return nextLine < reasonLines.size() ? state + 1 : REASON_TEXT_DONE; + } + } + err = GENERAL_ERROR; + return ERROR; + case REASON_TEXT_DONE: + if (status == GPGME_STATUS_GET_BOOL && + strcmp(args, "ask_revocation_reason.okay") == 0) { + return CONFIRM_REASON; + } + err = GENERAL_ERROR; + return ERROR; + case CONFIRM_REASON: + if (status == GPGME_STATUS_GET_LINE && + strcmp(args, "keyedit.prompt") == 0) { + return QUIT; + } + err = GENERAL_ERROR; + return ERROR; + case QUIT: + if (status == GPGME_STATUS_GET_BOOL && + strcmp(args, "keyedit.save.okay") == 0) { + return CONFIRM_SAVE; + } + err = GENERAL_ERROR; + return ERROR; + case ERROR: + if (status == GPGME_STATUS_GET_LINE && + strcmp(args, "keyedit.prompt") == 0) { + return QUIT; + } + err = q->lastError(); + return ERROR; + } +} + +GpgRevokeKeyEditInteractor::GpgRevokeKeyEditInteractor() + : EditInteractor{} + , d{new Private{this}} +{ +} + +GpgRevokeKeyEditInteractor::~GpgRevokeKeyEditInteractor() = default; + +void GpgRevokeKeyEditInteractor::setReason(RevocationReason reason, const std::vector<std::string> &description) +{ + d->reasonCode = std::to_string(static_cast<int>(reason)); + d->reasonLines = description; +} + +const char *GpgRevokeKeyEditInteractor::action(Error &err) const +{ + return d->action(err); +} + +unsigned int GpgRevokeKeyEditInteractor::nextState(unsigned int status, const char *args, Error &err) const +{ + return d->nextState(status, args, err); +} |