diff options
Diffstat (limited to '')
| -rw-r--r-- | src/gpg/gpg_context/GpgContext.cpp | 324 |
1 files changed, 86 insertions, 238 deletions
diff --git a/src/gpg/gpg_context/GpgContext.cpp b/src/gpg/gpg_context/GpgContext.cpp index a892603c..a9b83d92 100644 --- a/src/gpg/gpg_context/GpgContext.cpp +++ b/src/gpg/gpg_context/GpgContext.cpp @@ -23,10 +23,9 @@ */ #include "gpg/GpgContext.h" -#include "ui/WaitingDialog.h" #include <functional> -#include <unistd.h> /* contains read/write */ +#include <unistd.h> /* contains read/write */ #ifdef _WIN32 @@ -34,248 +33,97 @@ #endif -#define INT2VOIDP(i) (void*)(uintptr_t)(i) +#define INT2VOIDP(i) (void *)(uintptr_t)(i) namespace GpgFrontend { - /** - * Constructor - * Set up gpgme-context, set paths to app-run path - */ - GpgContext::GpgContext() { - - gpgme_ctx_t _p_ctx; - err = gpgme_new(&_p_ctx); - check_gpg_error(err); - _ctx_ref = CtxRefHandler(_p_ctx, [&](gpgme_ctx_t ctx) { gpgme_release(ctx); }); - - gpgme_engine_info_t engineInfo; - engineInfo = gpgme_ctx_get_engine_info(*this); - - // Check ENV before running - bool check_pass = false, find_openpgp = false, find_gpgconf = false, find_assuan = false, find_cms = false; - while (engineInfo != nullptr) { - qDebug() << gpgme_get_protocol_name(engineInfo->protocol) << engineInfo->file_name << engineInfo->protocol - << engineInfo->home_dir << engineInfo->version; - if (engineInfo->protocol == GPGME_PROTOCOL_GPGCONF && strcmp(engineInfo->version, "1.0.0") != 0) - find_gpgconf = true; - if (engineInfo->protocol == GPGME_PROTOCOL_OpenPGP && strcmp(engineInfo->version, "1.0.0") != 0) - find_openpgp = true, info.appPath = engineInfo->file_name; - if (engineInfo->protocol == GPGME_PROTOCOL_CMS && strcmp(engineInfo->version, "1.0.0") != 0) - find_cms = true; - if (engineInfo->protocol == GPGME_PROTOCOL_ASSUAN) - find_assuan = true; - engineInfo = engineInfo->next; - } - - if (find_gpgconf && find_openpgp && find_cms && find_assuan) - check_pass = true; - - if (!check_pass) { - good = false; - return; - } else good = true; - - - /** Setting the output type must be done at the beginning */ - /** think this means ascii-armor --> ? */ - gpgme_set_armor(*this, 1) ; - // Speed up loading process - gpgme_set_offline(*this, 1); - /** passphrase-callback */ - gpgme_set_passphrase_cb(*this, passphraseCb, this); - - gpgme_set_keylist_mode(*this, - GPGME_KEYLIST_MODE_LOCAL - | GPGME_KEYLIST_MODE_WITH_SECRET - | GPGME_KEYLIST_MODE_SIGS - | GPGME_KEYLIST_MODE_SIG_NOTATIONS - | GPGME_KEYLIST_MODE_WITH_TOFU); - - /** check if app is called with -d from command line */ - if (qApp->arguments().contains("-d")) { - qDebug() << "gpgme_data_t debug on"; - debug = true; - } else debug = false; - - slotRefreshKeyList(); - } - - bool GpgContext::isGood() const { - return good; - } - - /** - * The Passphrase window, if not provided by env-Var GPG_AGENT_INFO - * originally copied from http://basket.kde.org/ (kgpgme.cpp), but modified - */ - gpgme_error_t GpgContext::passphraseCb(void *hook, const char *uid_hint, - const char *passphrase_info, - int last_was_bad, int fd) { - auto *gpg = static_cast<GpgContext *>(hook); - return gpg->passphrase(uid_hint, passphrase_info, last_was_bad, fd); - } - - gpgme_error_t GpgContext::passphrase(const char *uid_hint, - const char * /*passphrase_info*/, - int last_was_bad, int fd) { - - gpgme_error_t returnValue = GPG_ERR_CANCELED; - QString passwordDialogMessage; - QString gpgHint = QString::fromUtf8(uid_hint); - bool result; - -#ifdef _WIN32 - DWORD written; - auto hd = INT2VOIDP(fd); -#endif - - if (last_was_bad) { - passwordDialogMessage += "<i> Wrong password. </i><br><br>\n\n"; - clearPasswordCache(); - } - - /** if uid provided */ - if (!gpgHint.isEmpty()) { - // remove UID, leave only username & email - gpgHint.remove(0, gpgHint.indexOf(" ")); - passwordDialogMessage += "<b> Enter Password for </b><br>" + gpgHint + "<br>"; - } - - if (mPasswordCache.isEmpty()) { - QString password = QInputDialog::getText(QApplication::activeWindow(), "Enter Password", - passwordDialogMessage, QLineEdit::Password, - "", &result); - - if (result) mPasswordCache = password.toUtf8(); - } else result = true; - - if (result) { - -#ifndef _WIN32 - if (write(fd, mPasswordCache.data(), mPasswordCache.length()) == -1) qDebug() << "something is terribly broken"; -#else - WriteFile(hd, mPasswordCache.data(), mPasswordCache.length(), &written, 0); -#endif - returnValue = GPG_ERR_NO_ERROR; - } - -#ifndef _WIN32 - if (write(fd, "\n", 1) == -1) qDebug() << "something is terribly broken"; -#else - WriteFile(hd, "\n", 1, &written, nullptr); - - /* program will hang on cancel if hd not closed */ - if (!result) CloseHandle(hd); -#endif - - return returnValue; - } - - /** also from kgpgme.cpp, seems to clear password from mem */ - void GpgContext::clearPasswordCache() { - if (mPasswordCache.size() > 0) { - mPasswordCache.fill('\0'); - mPasswordCache.truncate(0); - } - } - - // error-handling - gpgme_error_t check_gpg_error(gpgme_error_t err, const QString &comment) { - //if (gpgmeError != GPG_ERR_NO_ERROR && gpgmeError != GPG_ERR_CANCELED) { - if (gpg_err_code(err) != GPG_ERR_NO_ERROR) { - qDebug() << "[Error " << gpg_err_code(err) - << "] Source: " << gpgme_strsource(err) << " Description: " << gpgme_strerror(err); - } - return err; - } - - gpgme_error_t check_gpg_error(gpgme_error_t err) { - //if (gpgmeError != GPG_ERR_NO_ERROR && gpgmeError != GPG_ERR_CANCELED) { - if (gpg_err_code(err) != GPG_ERR_NO_ERROR) { - qDebug() << "[Error " << gpg_err_code(err) - << "] Source: " << gpgme_strsource(err) << " Description: " << gpgme_strerror(err); - } - return err; - } - - /** return type should be gpgme_error_t*/ - - - - /* - * if there is no '\n' before the PGP-Begin-Block, but for example a whitespace, - * GPGME doesn't recognise the Message as encrypted. This function adds '\n' - * before the PGP-Begin-Block, if missing. - */ - void GpgContext::preventNoDataErr(QByteArray *in) { - int block_start = in->indexOf(GpgConstants::PGP_CRYPT_BEGIN); - if (block_start > 0 && in->at(block_start - 1) != '\n') { - in->insert(block_start, '\n'); - } - block_start = in->indexOf(GpgConstants::PGP_SIGNED_BEGIN); - if (block_start > 0 && in->at(block_start - 1) != '\n') { - in->insert(block_start, '\n'); - } - } - - /* - * isSigned returns: - * - 0, if text isn't signed at all - * - 1, if text is partially signed - * - 2, if text is completly signed - */ - int GpgContext::textIsSigned(const QByteArray &text) { - if (text.trimmed().startsWith(GpgConstants::PGP_SIGNED_BEGIN) && - text.trimmed().endsWith(GpgConstants::PGP_SIGNED_END)) - return 2; - else if (text.contains(GpgConstants::PGP_SIGNED_BEGIN) && text.contains(GpgConstants::PGP_SIGNED_END)) - return 1; - - else return 0; - } - - QString GpgContext::beautifyFingerprint(QString fingerprint) { - uint len = fingerprint.length(); - if ((len > 0) && (len % 4 == 0)) - for (uint n = 0; 4 * (n + 1) < len; ++n) fingerprint.insert(static_cast<int>(5u * n + 4u), ' '); - return fingerprint; - } - - void GpgContext::slotRefreshKeyList() { - qDebug() << "Refreshing Keys"; - this->fetch_keys(); - emit signalKeyInfoChanged(); - } - - QString GpgContext::getGpgmeVersion() { - return {gpgme_check_version(nullptr)}; - } - - const GpgKeyList &GpgContext::getKeys() const { - return mKeyList; - } - - void GpgContext::slotUpdateKeyList(const QString &key_id) { - auto it = mKeyMap.find(key_id); - if (it != mKeyMap.end()) { - gpgme_key_t new_key_ref; - - auto gpgmeErr = gpgme_get_key(*this, key_id.toUtf8().constData(), &new_key_ref, 0); +/** + * Constructor + * Set up gpgme-context, set paths to app-run path + */ +GpgContext::GpgContext() { + + gpgme_ctx_t _p_ctx; + auto err = gpgme_new(&_p_ctx); + check_gpg_error(err); + _ctx_ref = + CtxRefHandler(_p_ctx, [&](gpgme_ctx_t ctx) { gpgme_release(ctx); }); + + gpgme_engine_info_t engineInfo; + engineInfo = gpgme_ctx_get_engine_info(*this); + + // Check ENV before running + bool check_pass = false, find_openpgp = false, find_gpgconf = false, + find_assuan = false, find_cms = false; + while (engineInfo != nullptr) { + qDebug() << gpgme_get_protocol_name(engineInfo->protocol) + << engineInfo->file_name << engineInfo->protocol + << engineInfo->home_dir << engineInfo->version; + if (engineInfo->protocol == GPGME_PROTOCOL_GPGCONF && + strcmp(engineInfo->version, "1.0.0") != 0) + find_gpgconf = true; + if (engineInfo->protocol == GPGME_PROTOCOL_OpenPGP && + strcmp(engineInfo->version, "1.0.0") != 0) + find_openpgp = true, info.appPath = engineInfo->file_name; + if (engineInfo->protocol == GPGME_PROTOCOL_CMS && + strcmp(engineInfo->version, "1.0.0") != 0) + find_cms = true; + if (engineInfo->protocol == GPGME_PROTOCOL_ASSUAN) + find_assuan = true; + engineInfo = engineInfo->next; + } + + if (find_gpgconf && find_openpgp && find_cms && find_assuan) + check_pass = true; + + if (!check_pass) { + good_ = false; + return; + } else + good_ = true; + + /** Setting the output type must be done at the beginning */ + /** think this means ascii-armor --> ? */ + gpgme_set_armor(*this, 1); + // Speed up loading process + gpgme_set_offline(*this, 1); + + gpgme_set_keylist_mode( + *this, GPGME_KEYLIST_MODE_LOCAL | GPGME_KEYLIST_MODE_WITH_SECRET | + GPGME_KEYLIST_MODE_SIGS | GPGME_KEYLIST_MODE_SIG_NOTATIONS | + GPGME_KEYLIST_MODE_WITH_TOFU); +} - if (gpgme_err_code(gpgmeErr) == GPG_ERR_EOF) { - gpgmeErr = gpgme_get_key(*this, key_id.toUtf8().constData(), &new_key_ref, 1); +bool GpgContext::good() const { return good_; } - if (gpgme_err_code(gpgmeErr) == GPG_ERR_EOF) - throw std::runtime_error("key_id not found in key database"); - } +/** also from kgpgme.cpp, seems to clear password from mem */ +void GpgContext::clearPasswordCache() { + if (mPasswordCache.size() > 0) { + mPasswordCache.fill('\0'); + mPasswordCache.truncate(0); + } +} - if (new_key_ref != nullptr) { - it->second = std::move(GpgKey(std::move(new_key_ref))); - emit signalKeyInfoChanged(); - } +/** return type should be gpgme_error_t*/ - } - } +/* + * if there is no '\n' before the PGP-Begin-Block, but for example a whitespace, + * GPGME doesn't recognise the Message as encrypted. This function adds '\n' + * before the PGP-Begin-Block, if missing. + */ +void GpgContext::preventNoDataErr(QByteArray *in) { + int block_start = in->indexOf(GpgConstants::PGP_CRYPT_BEGIN); + if (block_start > 0 && in->at(block_start - 1) != '\n') { + in->insert(block_start, '\n'); + } + block_start = in->indexOf(GpgConstants::PGP_SIGNED_BEGIN); + if (block_start > 0 && in->at(block_start - 1) != '\n') { + in->insert(block_start, '\n'); + } +} +std::string GpgContext::getGpgmeVersion() { + return {gpgme_check_version(nullptr)}; } + +} // namespace GpgFrontend |