Adjust and improve the detailed interface of the verification information result.

Check whether the key can be signed before signing operation.
Check whether the key is qualified before encrypting and signing operations.
Modify part of the text explanation on the key details tab.
Adjust the length and width of the key pair management interface.
Add the actual function column to the list on the file operation page.
Adjust the file operation page.
For the function that displays the actual possession of the key in the key list by default.
Add the function of displaying the actual possession of the key in the key details page.
Adjust the code structure.
Convert the label prompt below into a message board prompt.

Signed-off-by: Saturneric <[email protected]>

1 files changed, 206 insertions, 0 deletions

diff --git a/src/ui/widgets/VerifyKeyDetailBox.cpp b/src/ui/widgets/VerifyKeyDetailBox.cpp
new file mode 100644
index 00000000..3091d672
--- /dev/null
+++ b/src/ui/widgets/VerifyKeyDetailBox.cpp
@@ -0,0 +1,206 @@
+/**
+ * This file is part of GPGFrontend.
+ *
+ * GPGFrontend is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Foobar 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Foobar.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The initial version of the source code is inherited from gpg4usb-team.
+ * Their source code version also complies with GNU General Public License.
+ *
+ * The source code version of this software was modified and released
+ * by Saturneric<[email protected]> starting on May 12, 2021.
+ *
+ */
+
+#include "ui/widgets/VerifyKeyDetailBox.h"
+
+VerifyKeyDetailBox::VerifyKeyDetailBox(QWidget *parent, GpgME::GpgContext *ctx, KeyList *keyList,
+                                       gpgme_signature_t signature) :
+        QGroupBox(parent) {
+    this->mCtx = ctx;
+    this->mKeyList = keyList;
+    this->fpr = signature->fpr;
+
+    auto *vbox = new QVBoxLayout();
+
+    switch (gpg_err_code(signature->status)) {
+        case GPG_ERR_NO_PUBKEY: {
+            this->setTitle("A Error Signature");
+            auto *importButton = new QPushButton(tr("Import from keyserver"));
+            connect(importButton, SIGNAL(clicked()), this, SLOT(slotImportFormKeyserver()));
+
+            this->setTitle(tr("Key not present with id 0x") + signature->fpr);
+
+            auto grid = new QGridLayout();
+
+            grid->addWidget(new QLabel(tr("Status:")), 0, 0);
+            //grid->addWidget(new QLabel(tr("Fingerprint:")), 1, 0);
+            grid->addWidget(new QLabel(tr("Key not present in keylist")), 0, 1);
+            //grid->addWidget(new QLabel(signature->fpr), 1, 1);
+            grid->addWidget(importButton, 2, 0, 2, 1);
+
+            vbox->addLayout(grid);
+            break;
+        }
+        case GPG_ERR_NO_ERROR: {
+            this->setTitle("A Signature:");
+            auto gird = createKeyInfoGrid(signature);
+            if(gird != nullptr) {
+                vbox->addLayout(gird);
+            } else {
+                vbox->addWidget(new QLabel(tr("Key Information is NOT Available")));
+                if(signature->fpr != nullptr) {
+                    vbox->addWidget(new QLabel(tr("Fingerprint: ") + QString(signature->fpr)));
+                }
+            }
+            break;
+        }
+        case GPG_ERR_CERT_REVOKED: {
+            this->setTitle("An Error Signature");
+            vbox->addWidget(new QLabel(tr("Status: Cert Revoked")));
+            auto gird = createKeyInfoGrid(signature);
+            if (gird != nullptr) {
+                vbox->addLayout(gird);
+            } else {
+                vbox->addWidget(new QLabel(tr("Key Information is NOT Available")));
+                if(signature->fpr != nullptr) {
+                    vbox->addWidget(new QLabel(tr("Fingerprint: ") + QString(signature->fpr)));
+                }
+            }
+            break;
+        }
+        case GPG_ERR_SIG_EXPIRED: {
+            this->setTitle("An Error Signature");
+            vbox->addWidget(new QLabel(tr("Status: Signature Expired")));
+            auto gird = createKeyInfoGrid(signature);
+            if (gird != nullptr) {
+                vbox->addLayout(gird);
+            } else {
+                vbox->addWidget(new QLabel(tr("Key Information is NOT Available")));
+                if(signature->fpr != nullptr) {
+                    vbox->addWidget(new QLabel(tr("Fingerprint: ") + QString(signature->fpr)));
+                }
+            }
+            break;
+        }
+        case GPG_ERR_KEY_EXPIRED: {
+            this->setTitle("An Error Signature");
+            vbox->addWidget(new QLabel(tr("Status: Signature Expired")));
+            vbox->addWidget(new QLabel(tr("Status: Key Expired")));
+            auto gird = createKeyInfoGrid(signature);
+            if (gird != nullptr) {
+                vbox->addLayout(gird);
+            } else {
+                vbox->addWidget(new QLabel(tr("Key Information is NOT Available")));
+                if(signature->fpr != nullptr) {
+                    vbox->addWidget(new QLabel(tr("Fingerprint: ") + QString(signature->fpr)));
+                }
+            }
+            break;
+        }
+        case GPG_ERR_GENERAL: {
+            this->setTitle("An Error Signature");
+            vbox->addWidget(new QLabel(tr("Status: General Error")));
+            auto gird = createKeyInfoGrid(signature);
+            if (gird != nullptr) {
+                vbox->addLayout(gird);
+            } else {
+                vbox->addWidget(new QLabel(tr("Key Information is NOT Available")));
+                if(signature->fpr != nullptr) {
+                    vbox->addWidget(new QLabel(tr("Fingerprint: ") + QString(signature->fpr)));
+                }
+            }
+            break;
+        }
+        default: {
+            this->setTitle("An Error Signature");
+            this->setTitle(tr("Status: Unknown Error"));
+            auto gird = createKeyInfoGrid(signature);
+            if (gird != nullptr) {
+                vbox->addLayout(gird);
+            } else {
+                vbox->addWidget(new QLabel(tr("Key Information is NOT Available")));
+                if(signature->fpr != nullptr) {
+                    vbox->addWidget(new QLabel(tr("Fingerprint: ") + QString(signature->fpr)));
+                }
+            }
+            break;
+        }
+    }
+    this->setLayout(vbox);
+}
+
+void VerifyKeyDetailBox::slotImportFormKeyserver() {
+    auto *importDialog = new KeyServerImportDialog(mCtx, mKeyList, this);
+    importDialog->slotImport(QStringList(fpr));
+}
+
+QString VerifyKeyDetailBox::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;
+}
+
+QGridLayout *VerifyKeyDetailBox::createKeyInfoGrid(gpgme_signature_t &signature) {
+
+    auto grid = new QGridLayout();
+    GpgKey key = mCtx->getKeyByFpr(signature->fpr);
+
+    if(!key.good) return nullptr;
+    grid->addWidget(new QLabel(tr("Signer Name:")), 0, 0);
+    grid->addWidget(new QLabel(tr("Signer Email:")), 1, 0);
+    grid->addWidget(new QLabel(tr("Key's Fingerprint:")), 2, 0);
+    grid->addWidget(new QLabel(tr("Valid:")), 3, 0);
+    grid->addWidget(new QLabel(tr("Flags:")), 4, 0);
+
+    grid->addWidget(new QLabel(key.name), 0, 1);
+    grid->addWidget(new QLabel(key.email), 1, 1);
+    grid->addWidget(new QLabel(beautifyFingerprint(signature->fpr)), 2, 1);
+
+
+    if(signature->summary & GPGME_SIGSUM_VALID) {
+        grid->addWidget(new QLabel(tr("Fully Valid")), 3, 1);
+    } else {
+        grid->addWidget(new QLabel(tr("NOT Fully Valid")), 3, 1);
+    }
+
+    QString flags;
+    QTextStream textStream(&flags);
+
+    if(signature->summary & GPGME_SIGSUM_GREEN) {
+        textStream << tr("Good ");
+    }
+    if(signature->summary & GPGME_SIGSUM_RED) {
+        textStream << tr("Bad ");
+    }
+    if(signature->summary & GPGME_SIGSUM_SIG_EXPIRED) {
+        textStream << tr("Expired ");
+    }
+    if(signature->summary & GPGME_SIGSUM_KEY_MISSING) {
+        textStream << tr("Missing Key ");
+    }
+    if(signature->summary & GPGME_SIGSUM_KEY_REVOKED) {
+        textStream << tr("Revoked Key ");
+    }
+    if(signature->summary & GPGME_SIGSUM_KEY_EXPIRED) {
+        textStream << tr("Expired Key ");
+    }
+    if(signature->summary & GPGME_SIGSUM_CRL_MISSING) {
+        textStream << tr("Missing CRL ");
+    }
+
+    grid->addWidget(new QLabel(tr(flags.toUtf8().constData())), 4, 1);
+    return grid;
+}