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	diff --git a/src/AvatarLoader.cpp b/src/AvatarLoader.cpp
	index 414629c..f12e0c0 100644
	--- a/src/AvatarLoader.cpp
	+++ b/src/AvatarLoader.cpp
	@@ -1,182 +1,189 @@
	#include "AvatarLoader.h"
	+#include "BasicMainWindow.h"
	#include "MemoryReader.h"
	#include "webclient.h"

	#include <QCryptographicHash>
	#include <QDebug>

	namespace {
	const int MAX_CACHE_COUNT = 1000;
	const int ICON_SIZE = 64;
	}

	using WebClientPtr = std::shared_ptr<WebClient>;

	struct AvatarLoader::Private {
	QMutex data_mutex;
	QMutex thread_mutex;
	QWaitCondition condition;
	std::map<std::string, std::string> avatar_url_cache;
	std::deque<RequestItem> requested;
	std::deque<RequestItem> completed;
	std::set<std::string> notfound;
	+ BasicMainWindow *mainwindow = nullptr;
	WebContext *webcx = nullptr;
	WebClientPtr web;
	};

	AvatarLoader::AvatarLoader()
	: m(new Private)
	{
	}

	AvatarLoader::~AvatarLoader()
	{
	delete m;
	}

	-void AvatarLoader::start(WebContext *webcx)
	+void AvatarLoader::start(BasicMainWindow *mainwindow)
	{
	- m->webcx = webcx;
	+ m->mainwindow = mainwindow;
	+ m->webcx = m->mainwindow->webContext();
	QThread::start();
	}

	void AvatarLoader::run()
	{
	m->web = std::make_shared<WebClient>(m->webcx);

	while (1) {
	std::deque<RequestItem> requests;

	if (isInterruptionRequested()) return;

	m->thread_mutex.lock();
	{
	QMutexLocker lock(&m->data_mutex);
	requests = std::move(m->requested);
	}
	if (requests.empty()) {
	m->condition.wait(&m->thread_mutex);
	{
	QMutexLocker lock(&m->data_mutex);
	requests = std::move(m->requested);
	}
	}
	m->thread_mutex.unlock();

	if (isInterruptionRequested()) return;

	for (RequestItem &item : requests) {

	if (isInterruptionRequested()) return;

	if (item.email.empty()) continue;

	if (strchr(item.email.c_str(), '@')) {
	QCryptographicHash hash(QCryptographicHash::Md5);
	hash.addData(item.email.c_str(), item.email.size());
	QByteArray ba = hash.result();
	char tmp[100];
	for (int i = 0; i < ba.size(); i++) {
	sprintf(tmp + i * 2, "%02x", ba.data()[i] & 0xff);
	}
	QString id = tmp;
	QString url = "https://www.gravatar.com/avatar/%1?s=%2";
	url = url.arg(id).arg(ICON_SIZE);
	if (m->web->get(WebClient::URL(url.toStdString())) == 200) {
	if (!m->web->response().content.empty()) {
	MemoryReader reader(m->web->response().content.data(), m->web->response().content.size());
	reader.open(MemoryReader::ReadOnly);
	QImage image;
	image.load(&reader, nullptr);
	int w = image.width();
	int h = image.height();
	if (w > 0 && h > 0) {
	item.icon = QIcon(QPixmap::fromImage(image));
	{
	QMutexLocker lock(&m->data_mutex);
	while (m->completed.size() >= MAX_CACHE_COUNT) {
	m->completed.pop_back();
	}
	m->completed.push_front(item);
	}
	emit updated();
	continue;
	}
	}
	+ } else {
	+ m->mainwindow->emitWriteLog(QString("Failed to fetch the avatar.\n").toUtf8());
	+ QString msg = QString::fromStdString(m->web->error().message() + '\n');
	+ m->mainwindow->emitWriteLog(msg.toUtf8());
	}
	}
	{ // not found
	QMutexLocker lock(&m->data_mutex);
	m->notfound.insert(m->notfound.end(), item.email);
	}
	}
	}
	}

	namespace {
	bool isValidGitHubName(std::string const &name)
	{
	size_t n = name.size();
	if (n < 1 \|\| n > 39) return false;
	char const *begin = name.c_str();
	char const *end = begin + name.size();
	char const *ptr = begin;
	while (ptr < end) {
	int c = (unsigned char)*ptr;
	ptr++;
	if (isalnum(c)) {
	// ok
	} else if (c == '-') {
	if (ptr == begin) return false;
	if (ptr < end && *ptr == '-') return false;
	}
	}
	return true;
	}

	}

	QIcon AvatarLoader::fetch(std::string const &email, bool request) const
	{
	RequestItem item;
	item.email = email;
	if (isValidGitHubName(item.email)) {
	QMutexLocker lock(&m->data_mutex);

	auto it = m->notfound.find(item.email);
	if (it == m->notfound.end()) {
	for (size_t i = 0; i < m->completed.size(); i++) {
	if (item.email == m->completed[i].email) {
	item = m->completed[i];
	m->completed.erase(m->completed.begin() + i);
	m->completed.insert(m->completed.begin(), item);
	return item.icon;
	}
	}
	if (request) {
	bool waiting = false;
	for (RequestItem const &r : m->requested) {
	if (item.email == r.email) {
	waiting = true;
	break;
	}
	}
	if (!waiting) {
	m->requested.push_back(item);
	m->condition.wakeOne();
	}
	}
	}
	}
	return QIcon();
	}

	void AvatarLoader::stop()
	{
	requestInterruption();
	if (m->web) m->web->close();
	m->condition.wakeAll();
	wait();
	}


	diff --git a/src/AvatarLoader.h b/src/AvatarLoader.h
	index 4f8ba2e..95c73b7 100644
	--- a/src/AvatarLoader.h
	+++ b/src/AvatarLoader.h
	@@ -1,37 +1,38 @@
	#ifndef AVATARLOADER_H
	#define AVATARLOADER_H

	#include "GitHubAPI.h"
	#include <QIcon>
	#include <QThread>
	#include <QMutex>
	#include <deque>
	#include <QWaitCondition>
	#include <set>
	#include <string>

	+class BasicMainWindow;
	class WebContext;

	class AvatarLoader : public QThread {
	Q_OBJECT
	private:
	struct RequestItem {
	std::string email;
	QIcon icon;
	};
	struct Private;
	Private *m;

	protected:
	void run() override;
	public:
	AvatarLoader();
	~AvatarLoader() override;
	QIcon fetch(std::string const &email, bool request) const;
	void stop();
	- void start(WebContext *webcx);
	+ void start(BasicMainWindow *mainwindow);
	signals:
	void updated();
	};

	#endif // AVATARLOADER_H
	diff --git a/src/BasicMainWindow.h b/src/BasicMainWindow.h
	index b131bbb..e8192b5 100644
	--- a/src/BasicMainWindow.h
	+++ b/src/BasicMainWindow.h
	@@ -1,377 +1,376 @@
	#ifndef BASICMAINWINDOW_H
	#define BASICMAINWINDOW_H

	#include "Git.h"
	#include "GitObjectManager.h"
	#include "MyProcess.h"
	#include "RepositoryData.h"
	#include "TextEditorTheme.h"
	#include <QMainWindow>
	#include <functional>

	class ApplicationSettings;
	class AvatarLoader;
	class QListWidget;
	class QListWidgetItem;
	class QTreeWidgetItem;
	class WebContext;

	struct GitHubRepositoryInfo {
	QString owner_account_name;
	QString repository_name;
	};

	#define PATH_PREFIX "*"

	class BasicMainWindow : public QMainWindow {
	Q_OBJECT
	public:
	struct Label {
	enum {
	Head,
	LocalBranch,
	RemoteBranch,
	Tag,
	};
	int kind;
	QString text;
	Label(int kind = LocalBranch)
	: kind(kind)
	{

	}
	};
	protected:

	enum class PtyCondition {
	None,
	Clone,
	Fetch,
	Pull,
	Push,
	};

	enum InteractionMode {
	None,
	Busy,
	};

	enum NamedCommitFlag {
	Branches = 0x0001,
	Tags = 0x0002,
	Remotes = 0x0100,
	};

	enum class FilesListType {
	SingleList,
	SideBySide,
	};

	struct Task {
	int index = 0;
	int parent = 0;
	Task() = default;
	Task(int index, int parent)
	: index(index)
	, parent(parent)
	{
	}
	};

	struct Element {
	int depth = 0;
	std::vector<int> indexes;
	};

	enum {
	IndexRole = Qt::UserRole,
	FilePathRole,
	DiffIndexRole,
	HunkIndexRole,
	};

	enum {
	GroupItem = -1,
	};

	struct Private;
	Private *m;
	private:
	static bool git_callback(void cookie, const char ptr, int len);

	QString selectCommand_(QString const &cmdname, QStringList const &cmdfiles, QStringList const &list, QString path, std::function<void (QString const &)> const &callback);
	QString selectCommand_(QString const &cmdname, QString const &cmdfile, QStringList const &list, QString const &path, std::function<void (QString const &)> const &callback);

	bool checkGitCommand();
	bool checkFileCommand();
	bool checkExecutable(QString const &path);
	void internalSetCommand(QString const &path, bool save, QString const &name, QString *out);
	QStringList whichCommand_(QString const &cmdfile1, QString const &cmdfile2 = QString());

	- void emitWriteLog(QByteArray ba);
	-
	void setWindowTitle_(Git::User const &user);
	bool execSetGlobalUserDialog();

	bool saveByteArrayAs(const QByteArray &ba, QString const &dstpath);
	bool saveFileAs(QString const &srcpath, QString const &dstpath);
	bool saveBlobAs(QString const &id, QString const &dstpath);

	void updateFilesList(Git::CommitItem const &commit, bool wait);

	void revertAllFiles();

	void setCurrentRemoteName(QString const &name);

	void deleteTags(Git::CommitItem const &commit);

	bool isAvatarEnabled() const;
	bool isGitHub() const;
	QStringList remotes() const;
	QList<Git::Branch> findBranch(QString const &id);
	QString saveAsTemp(QString const &id);
	QString tempfileHeader() const;
	void deleteTempFiles();
	QString getCommitIdFromTag(QString const &tag);
	bool isValidRemoteURL(QString const &url);
	QString getObjectID(QListWidgetItem *item);
	void addWorkingCopyDir(QString dir, QString name, bool open);
	static QString makeRepositoryName(QString const &loc);
	void clearAuthentication();
	RepositoryItem const findRegisteredRepository(QString workdir) const;
	void queryRemotes(GitPtr g);
	bool runOnRepositoryDir(std::function<void (QString)> callback, RepositoryItem const *repo);
	void clearSshAuthentication();
	protected:
	static QString getFilePath(QListWidgetItem *item);
	static bool isGroupItem(QTreeWidgetItem *item);
	static int indexOfLog(QListWidgetItem *item);
	static int indexOfDiff(QListWidgetItem *item);
	static int getHunkIndex(QListWidgetItem *item);

	void initNetworking();
	bool saveRepositoryBookmarks() const;
	QString getBookmarksFilePath() const;

	void stopPtyProcess();
	void abortPtyProcess();

	bool execWelcomeWizardDialog();
	void execRepositoryPropertyDialog(QString workdir, bool open_repository_menu = false);
	void execSetUserDialog(Git::User const &global_user, Git::User const &repo_user, QString const &reponame);
	void setGitCommand(QString const &path, bool save);
	void setFileCommand(QString const &path, bool save);
	void setGpgCommand(QString const &path, bool save);
	void logGitVersion();
	void setUnknownRepositoryInfo();
	void internalClearRepositoryInfo();
	void checkUser();
	void openRepository(bool validate, bool waitcursor = true);
	void reopenRepository(bool log, std::function<void (GitPtr)> callback);
	void openSelectedRepository();
	void checkRemoteUpdate();
	bool isThereUncommitedChanges() const;
	bool makeDiff(QString id, QList<Git::Diff> *out);
	void addDiffItems(const QList<Git::Diff> *diff_list, const std::function<void (QString const &, QString, int)> &add_item);
	Git::CommitItemList retrieveCommitLog(GitPtr g);

	void queryBranches(GitPtr g);
	std::map<QString, QList<Git::Branch>> &branchMapRef();

	void updateCommitTableLater();
	void updateRemoteInfo();
	void updateWindowTitle(GitPtr g);
	QString makeCommitInfoText(int row, QList<Label> *label_list);
	void removeRepositoryFromBookmark(int index, bool ask);

	void clone(QString url = QString(), QString dir = QString());
	void checkout();
	void commit(bool amend = false);
	void commitAmend();
	void pushSetUpstream(QString const &remote, QString const &branch);
	bool pushSetUpstream(bool testonly);
	void push();

	void openTerminal(RepositoryItem const *repo);
	void openExplorer(RepositoryItem const *repo);
	Git::CommitItem const *selectedCommitItem() const;
	void deleteBranch(Git::CommitItem const *commit);
	void deleteBranch();
	bool askAreYouSureYouWantToRun(QString const &title, QString const &command);
	bool editFile(QString const &path, QString const &title);
	void resetFile(QStringList const &paths);
	void saveRepositoryBookmark(RepositoryItem item);
	void setCurrentRepository(RepositoryItem const &repo, bool clear_authentication);
	void internalDeleteTags(QStringList const &tagnames);
	bool internalAddTag(QString const &name);
	NamedCommitList namedCommitItems(int flags);
	int rowFromCommitId(QString const &id);
	void createRepository(QString const &dir);
	void setLogEnabled(GitPtr g, bool f);
	QList<Git::Tag> findTag(QString const &id);
	void sshSetPassphrase(std::string const &user, std::string const &pass);
	std::string sshPassphraseUser() const;
	std::string sshPassphrasePass() const;
	void httpSetAuthentication(std::string const &user, std::string const &pass);
	std::string httpAuthenticationUser() const;
	std::string httpAuthenticationPass() const;
	public:
	Git::CommitItemList const &getLogs() const;
	Git::CommitItem const *getLog(int index) const;
	protected:
	bool event(QEvent *event) override;
	void postUserFunctionEvent(const std::function<void(QVariant const &)> &fn, QVariant const &v = QVariant());

	void doGitCommand(std::function<void(GitPtr)> const &callback);

	Git::CommitItemList *getLogsPtr();
	void setLogs(const Git::CommitItemList &logs);
	void clearLogs();

	PtyProcess *getPtyProcess();
	PtyCondition getPtyCondition();
	bool getPtyProcessOk() const;
	void setPtyProcessOk(bool pty_process_ok);
	void setPtyUserData(QVariant const &userdata);
	void setPtyCondition(const PtyCondition &ptyCondition);

	QList<RepositoryItem> const &getRepos() const;
	QList<RepositoryItem> *getReposPtr();

	QString getCurrentRemoteName() const;

	AvatarLoader *getAvatarLoader();
	const AvatarLoader *getAvatarLoader() const;

	int *ptrUpdateFilesListCounter();
	int *ptrUpdateCommitTableCounter();

	bool interactionCanceled() const;
	void setInteractionCanceled(bool canceled);

	InteractionMode interactionMode() const;
	void setInteractionMode(const InteractionMode &im);

	QString getRepositoryFilterText() const;
	void setRepositoryFilterText(QString const &text);

	void setUncommitedChanges(bool uncommited_changes);

	QList<Git::Diff> *diffResult();
	std::map<QString, Git::Diff> *getDiffCacheMap();

	bool getRemoteChanged() const;
	void setRemoteChanged(bool remote_changed);

	void setServerType(const ServerType &server_type);

	GitHubRepositoryInfo *ptrGitHub();

	std::map<int, QList<Label> > *getLabelMap();
	void clearLabelMap();

	GitObjectCache *getObjCache();

	bool getForceFetch() const;
	void setForceFetch(bool force_fetch);

	std::map<QString, QList<Git::Tag>> *ptrTagMap();

	QString getHeadId() const;
	void setHeadId(QString const &head_id);

	void setPtyProcessCompletionData(QVariant const &value);
	QVariant const &getTempRepoForCloneCompleteV() const;

	void updateCommitGraph();
	bool fetch(GitPtr g, bool prune);

	protected:
	virtual void setCurrentLogRow(int row) = 0;
	virtual void updateFilesList(QString id, bool wait) = 0;
	virtual void setRepositoryInfo(QString const &reponame, QString const &brname) = 0;
	virtual void deleteTags(QStringList const &tagnames) = 0;
	virtual void internalWriteLog(const char *ptr, int len) = 0;
	virtual void removeSelectedRepositoryFromBookmark(bool ask) = 0;
	virtual void openRepository_(GitPtr g) = 0;
	virtual void updateRepositoriesList() = 0;
	virtual int selectedLogIndex() const = 0;
	virtual void clearFileList() = 0;
	virtual RepositoryItem const *selectedRepositoryItem() const = 0;
	virtual bool isRemoteOnline() const = 0;
	virtual void setRemoteMonitoringEnabled(bool enable) { (void)enable; };
	public:
	explicit BasicMainWindow(QWidget *parent = nullptr);
	~BasicMainWindow();
	ApplicationSettings *appsettings();
	const ApplicationSettings *appsettings() const;
	WebContext *webContext();
	QString gitCommand() const;
	void autoOpenRepository(QString dir);
	GitPtr git(QString const &dir) const;
	GitPtr git();
	QPixmap getTransparentPixmap();
	QIcon committerIcon(int row) const;
	Git::CommitItem const *commitItem(int row) const;
	QIcon verifiedIcon(char s) const;
	virtual QString currentWorkingCopyDir() const;
	QList<BasicMainWindow::Label> const *label(int row);
	bool saveAs(QString const &id, QString const &dstpath);
	bool testRemoteRepositoryValidity(QString const &url);
	QString defaultWorkingDir() const;
	void addWorkingCopyDir(QString dir, bool open);
	bool queryCommit(QString const &id, Git::CommitItem *out);
	QAction addMenuActionProperty(QMenu menu);
	void checkout(QWidget parent, Git::CommitItem const commit);
	void jumpToCommit(QString id);
	void execCommitViewWindow(Git::CommitItem const *commit);
	void execCommitExploreWindow(QWidget parent, Git::CommitItem const commit);
	void execCommitPropertyDialog(QWidget parent, Git::CommitItem const commit);
	void execFileHistory(QString const &path);
	void execFileHistory(QListWidgetItem *item);
	void execFilePropertyDialog(QListWidgetItem *item);
	QString selectGitCommand(bool save);
	QString selectFileCommand(bool save);
	QString selectGpgCommand(bool save);
	Git::Branch const &currentBranch() const;
	void setCurrentBranch(Git::Branch const &b);
	const RepositoryItem &currentRepository() const;
	QString currentRepositoryName() const;
	QString currentRemoteName() const;
	QString currentBranchName() const;
	bool isValidWorkingCopy(const GitPtr &g) const;
	QString determinFileType_(QString const &path, bool mime, std::function<void (QString const &, QByteArray *)> callback) const;
	QString determinFileType(QString const &path, bool mime);
	QString determinFileType(QByteArray in, bool mime);
	QList<Git::Tag> queryTagList();
	int limitLogCount() const;
	TextEditorThemePtr themeForTextEditor();
	Git::Object cat_file_(GitPtr g, QString const &id);
	Git::Object cat_file(QString const &id);
	QString newTempFilePath();
	QString findFileID(GitPtr, QString const &commit_id, QString const &file);
	void updateFilesList(QString const &id, QList<Git::Diff> diff_list, QListWidget listwidget);
	void setAppSettings(const ApplicationSettings &appsettings);

	QIcon getRepositoryIcon() const;
	QIcon getFolderIcon() const;
	QIcon getSignatureGoodIcon() const;
	QIcon getSignatureDubiousIcon() const;
	QIcon getSignatureBadIcon() const;
	QPixmap getTransparentPixmap() const;

	static QString abbrevCommitID(Git::CommitItem const &commit);
	protected slots:
	void onAvatarUpdated();
	public:
	void writeLog(const char *ptr, int len);
	void writeLog(QString const &str);
	+ void emitWriteLog(QByteArray ba);
	public slots:
	void writeLog_(QByteArray ba);
	signals:
	void signalWriteLog(QByteArray ba);
	void remoteInfoChanged();
	void signalCheckRemoteUpdate();
	};

	#endif // BASICMAINWINDOW_H
	diff --git a/src/CommitPropertyDialog.cpp b/src/CommitPropertyDialog.cpp
	index f6b752a..cbad1b0 100644
	--- a/src/CommitPropertyDialog.cpp
	+++ b/src/CommitPropertyDialog.cpp
	@@ -1,169 +1,169 @@
	#include "CommitPropertyDialog.h"
	#include "ui_CommitPropertyDialog.h"
	#include "ApplicationGlobal.h"
	#include "AvatarLoader.h"
	#include "BasicMainWindow.h"
	#include "common/misc.h"
	#include "gpg.h"
	#include "main.h"

	struct CommitPropertyDialog::Private {
	BasicMainWindow *mainwindow;
	Git::CommitItem commit;
	AvatarLoader avatar_loader;
	};

	void CommitPropertyDialog::init(BasicMainWindow *mw)
	{
	Qt::WindowFlags flags = windowFlags();
	flags &= ~Qt::WindowContextHelpButtonHint;
	setWindowFlags(flags);

	ui->pushButton_jump->setVisible(false);

	m->mainwindow = mw;

	ui->lineEdit_description->setText(m->commit.message);
	ui->lineEdit_commit_id->setText(m->commit.commit_id);
	ui->lineEdit_date->setText(misc::makeDateTimeString(m->commit.commit_date));
	ui->lineEdit_author->setText(m->commit.author);
	ui->lineEdit_mail->setText(m->commit.email);

	QString text;
	for (QString const &id : m->commit.parent_ids) {
	text += id + '\n';
	}
	ui->plainTextEdit_parent_ids->setPlainText(text);

	gpg::Data key;
	int n1 = m->commit.fingerprint.size();
	if (n1 > 0) {
	QList<gpg::Data> keys;
	if (gpg::listKeys(global->gpg_command, &keys)) {
	for (gpg::Data const &k : keys) {
	int n2 = k.fingerprint.size();
	if (n2 > 0) {
	int n = std::min(n1, n2);
	char const *p1 = m->commit.fingerprint.data() + n1 - n;
	char const *p2 = k.fingerprint.data() + n2 - n;
	if (memcmp(p1, p2, n) == 0) {
	key = k;
	break;
	}
	}
	}
	} else {
	qDebug() << "Failed to get gpg keys";
	}
	if (key.id.isEmpty()) {
	// gpgコマンドが登録されていないなど、keyidが取得できなかったとき
	key.id = tr("<Unknown>");
	}
	}
	if (key.id.isEmpty()) {
	ui->frame_sign->setVisible(false);
	} else {
	{
	int w = ui->label_signature_icon->width();
	int h = ui->label_signature_icon->width();
	QIcon icon = mainwindow()->verifiedIcon(m->commit.signature);
	ui->label_signature_icon->setPixmap(icon.pixmap(w, h));
	}
	ui->lineEdit_sign_id->setText(key.id);
	ui->lineEdit_sign_name->setText(key.name);
	ui->lineEdit_sign_mail->setText(key.mail);
	}

	- m->avatar_loader.start(mainwindow()->webContext());
	+ m->avatar_loader.start(mainwindow());
	connect(&m->avatar_loader, &AvatarLoader::updated, [&](){
	UpdateAvatar(false);
	});
	UpdateAvatar(true);
	}

	void CommitPropertyDialog::UpdateAvatar(bool request)
	{
	auto SetAvatar = [&](QString const &email, QLabel *label){
	if (mainwindow()->appsettings()->get_committer_icon) {
	label->setFixedSize(QSize(48, 48));
	QIcon icon = m->avatar_loader.fetch(email.toStdString(), request);
	setAvatar(icon, label);
	} else {
	label->setVisible(false);
	}
	};
	SetAvatar(ui->lineEdit_mail->text(), ui->label_user_avatar);
	SetAvatar(ui->lineEdit_sign_mail->text(), ui->label_sign_avatar);
	}

	CommitPropertyDialog::CommitPropertyDialog(QWidget parent, BasicMainWindow mw, Git::CommitItem const *commit)
	: QDialog(parent)
	, ui(new Ui::CommitPropertyDialog)
	, m(new Private)
	{
	ui->setupUi(this);
	m->commit = *commit;
	init(mw);
	}

	CommitPropertyDialog::CommitPropertyDialog(QWidget parent, BasicMainWindow mw, QString const &commit_id)
	: QDialog(parent)
	, ui(new Ui::CommitPropertyDialog)
	, m(new Private)
	{
	ui->setupUi(this);

	mw->queryCommit(commit_id, &m->commit);
	init(mw);
	}

	CommitPropertyDialog::~CommitPropertyDialog()
	{
	m->avatar_loader.stop();
	delete m;
	delete ui;
	}

	BasicMainWindow *CommitPropertyDialog::mainwindow()
	{
	return m->mainwindow;
	}

	void CommitPropertyDialog::setAvatar(QIcon const &icon, QLabel *label)
	{
	QPixmap pm = icon.pixmap(label->size());
	label->setPixmap(pm);
	}

	void CommitPropertyDialog::showCheckoutButton(bool f)
	{
	ui->pushButton_checkout->setVisible(f);
	}

	void CommitPropertyDialog::showJumpButton(bool f)
	{
	ui->pushButton_jump->setVisible(f);
	}

	void CommitPropertyDialog::on_pushButton_checkout_clicked()
	{
	mainwindow()->checkout(this, &m->commit);
	done(QDialog::Rejected);
	}

	void CommitPropertyDialog::on_pushButton_jump_clicked()
	{
	mainwindow()->jumpToCommit(m->commit.commit_id);
	done(QDialog::Accepted);
	}

	void CommitPropertyDialog::on_pushButton_details_clicked()
	{
	mainwindow()->execCommitViewWindow(&m->commit);
	}

	void CommitPropertyDialog::on_pushButton_explorer_clicked()
	{
	mainwindow()->execCommitExploreWindow(this, &m->commit);

	}
	diff --git a/src/GitHubAPI.cpp b/src/GitHubAPI.cpp
	index 5272ee7..6cbb41b 100644
	--- a/src/GitHubAPI.cpp
	+++ b/src/GitHubAPI.cpp
	@@ -1,101 +1,111 @@

	+#include "BasicMainWindow.h"
	#include "GitHubAPI.h"

	#include "webclient.h"
	#include "common/misc.h"
	#include "charvec.h"
	#include "urlencode.h"
	#include "MemoryReader.h"

	#include <QDebug>
	#include <QJsonArray>
	#include <QJsonDocument>
	#include <QJsonObject>
	#include <memory>

	using WebClientPtr = GitHubAPI::WebClientPtr;

	struct GitHubRequestThread::Private {
	+ BasicMainWindow *mainwindow = nullptr;
	WebClientPtr web;
	};

	GitHubRequestThread::GitHubRequestThread()
	: m(new Private)
	{
	}

	GitHubRequestThread::~GitHubRequestThread()
	{
	delete m;
	}

	-void GitHubRequestThread::start(WebContext *webcx)
	+void GitHubRequestThread::start(WebContext webcx, BasicMainWindow mainwindow)
	{
	- m->web = std::make_shared<WebClient>(webcx);
	+ m->mainwindow = mainwindow;
	+ m->web = std::make_shared<WebClient>(m->mainwindow->webContext());
	QThread::start();
	}

	void GitHubRequestThread::run()
	{
	ok = false;
	if (web()->get(WebClient::URL(url)) == 200) {
	WebClient::Response const &r = web()->response();
	if (!r.content.empty()) {
	text = to_stdstr(r.content);
	ok = true;
	if (callback) {
	ok = callback(text);
	}
	}
	+ } else {
	+ std::string msg = web()->error().message();
	+ if (!msg.empty()) {
	+ m->mainwindow->emitWriteLog(QString::fromStdString("Failed to access the site: " + url + '\n').toUtf8());
	+ QString s = QString::fromStdString(msg + '\n');
	+ m->mainwindow->emitWriteLog(s.toUtf8());
	+ }
	}
	}

	GitHubAPI::WebClientPtr GitHubRequestThread::web()
	{
	return m->web;
	}

	QList<GitHubAPI::SearchResultItem> GitHubAPI::searchRepository(std::string const &q)
	{
	QList<GitHubAPI::SearchResultItem> items;

	GitHubRequestThread th;
	{
	OverrideWaitCursor;
	th.url = "https://api.github.com/search/repositories?q=" + q;
	- th.start(webcx);
	+ th.start(webcx, mainwindow_);
	while (!th.wait(1)) {
	QApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
	}
	}
	if (th.ok) {
	QByteArray ba(th.text.c_str(), th.text.size());
	QJsonDocument doc = QJsonDocument::fromJson(ba);
	QJsonArray a1 = doc.object().value("items").toArray();
	for (QJsonValue const &v1 : a1) {
	QJsonObject o1 = v1.toObject();
	SearchResultItem item;
	auto String = [&](QString const &key){
	return o1.value(key).toString().toStdString();
	};
	item.full_name = String("full_name");
	if (!item.full_name.empty()) {
	item.description = String("description");
	item.html_url = String("html_url");
	item.ssh_url = String("ssh_url");
	item.clone_url = String("clone_url");
	item.score = o1.value("score").toDouble();
	items.push_back(item);
	}
	}
	}

	std::sort(items.begin(), items.end(), [](SearchResultItem const &l, SearchResultItem const &r){
	return l.score > r.score; // 降順
	});

	return items;
	}



	diff --git a/src/GitHubAPI.h b/src/GitHubAPI.h
	index 0335186..c7b572e 100644
	--- a/src/GitHubAPI.h
	+++ b/src/GitHubAPI.h
	@@ -1,62 +1,65 @@
	#ifndef GITHUBAPI_H
	#define GITHUBAPI_H

	#include <QImage>
	#include <QThread>
	#include <string>
	#include <functional>
	#include <memory>

	+class BasicMainWindow;
	class WebContext;
	class WebClient;

	class GitHubAPI {
	public:
	using WebClientPtr = std::shared_ptr<WebClient>;

	struct User {
	std::string login;
	std::string avatar_url;
	std::string name;
	std::string email;
	};

	struct SearchResultItem {
	std::string full_name;
	std::string description;
	std::string ssh_url;
	std::string clone_url;
	std::string html_url;
	double score = 0;
	};

	+ BasicMainWindow *mainwindow_;
	WebContext *webcx;

	- GitHubAPI(WebContext *webcx)
	+ GitHubAPI(WebContext webcx, BasicMainWindow mainwindow)
	: webcx(webcx)
	+ , mainwindow_(mainwindow)
	{
	}

	QList<GitHubAPI::SearchResultItem> searchRepository(std::string const &q);
	};


	class GitHubRequestThread : public QThread {
	private:
	struct Private;
	Private *m;
	protected:
	void run() override;
	public:
	GitHubAPI::WebClientPtr web();
	public:
	GitHubRequestThread();
	~GitHubRequestThread() override;
	std::string url;
	bool ok = false;
	std::string text;
	std::function<bool(std::string const &text)> callback;
	- void start(WebContext *webcx);
	+ void start(WebContext webcx, BasicMainWindow mainwindow);
	};

	#endif // GITHUBAPI_H
	diff --git a/src/MainWindow.cpp b/src/MainWindow.cpp
	index 1ff9f91..7a572e1 100644
	--- a/src/MainWindow.cpp
	+++ b/src/MainWindow.cpp
	@@ -1,2584 +1,2584 @@
	#include "MainWindow.h"
	#include "ui_MainWindow.h"
	#include "AboutDialog.h"
	#include "ApplicationGlobal.h"
	#include "AreYouSureYouWantToContinueConnectingDialog.h"
	#include "AvatarLoader.h"
	#include "BlameWindow.h"
	#include "CommitPropertyDialog.h"
	#include "DeleteBranchDialog.h"
	#include "EditGitIgnoreDialog.h"
	#include "EditTagsDialog.h"
	#include "FileDiffWidget.h"
	#include "GitDiff.h"
	#include "JumpDialog.h"
	#include "LineEditDialog.h"
	#include "MySettings.h"
	#include "ReflogWindow.h"
	#include "RemoteWatcher.h"
	#include "SetGpgSigningDialog.h"
	#include "SettingsDialog.h"
	#include "StatusLabel.h"
	#include "TextEditDialog.h"
	#include "common/joinpath.h"
	#include "common/misc.h"
	#include "CloneFromGitHubDialog.h"
	#include "platform.h"
	#include "webclient.h"
	#include <QClipboard>
	#include <QFileDialog>
	#include <QFileIconProvider>
	#include <QMessageBox>
	#include <QMimeData>
	#include <QPainter>
	#include <QStandardPaths>
	#include <QTimer>

	FileDiffWidget::DrawData::DrawData()
	{
	bgcolor_text = QColor(255, 255, 255);
	bgcolor_gray = QColor(224, 224, 224);
	bgcolor_add = QColor(192, 240, 192);
	bgcolor_del = QColor(255, 224, 224);
	bgcolor_add_dark = QColor(64, 192, 64);
	bgcolor_del_dark = QColor(240, 64, 64);
	}

	struct MainWindow::Private {
	QTimer interval_10ms_timer;
	QTimer remote_watcher_timer;
	QImage graph_color;
	QPixmap digits;
	StatusLabel *status_bar_label;

	QObject *last_focused_file_list = nullptr;

	QListWidgetItem *last_selected_file_item = nullptr;

	RemoteWatcher remote_watcher;
	};

	MainWindow::MainWindow(QWidget *parent)
	: BasicMainWindow(parent)
	, ui(new Ui::MainWindow)
	, m(new Private)
	{
	ui->setupUi(this);

	#ifdef Q_OS_MACX
	ui->action_about->setText("About Guitar...");
	ui->action_edit_settings->setText("Settings...");
	#endif

	ui->splitter_v->setSizes({100, 400});
	ui->splitter_h->setSizes({200, 100, 200});

	m->status_bar_label = new StatusLabel(this);
	ui->statusBar->addWidget(m->status_bar_label);

	ui->widget_diff_view->bind(this);

	qApp->installEventFilter(this);

	ui->widget_log->setupForLogWidget(ui->verticalScrollBar_log, ui->horizontalScrollBar_log, themeForTextEditor());
	onLogVisibilityChanged();

	initNetworking();

	showFileList(FilesListType::SingleList);

	m->digits.load(":/image/digits.png");
	m->graph_color = global->theme->graphColorMap();

	prepareLogTableWidget();

	#ifdef Q_OS_WIN
	{
	QFont font;

	font = ui->label_repo_name->font();
	font.setFamily("Meiryo");
	ui->label_repo_name->setFont(font);

	font = ui->label_branch_name->font();
	font.setFamily("Meiryo");
	ui->label_branch_name->setFont(font);
	}
	#endif

	connect(this, &BasicMainWindow::signalWriteLog, this, &BasicMainWindow::writeLog_);

	connect(ui->dockWidget_log, &QDockWidget::visibilityChanged, this, &MainWindow::onLogVisibilityChanged);
	connect(ui->widget_log, &TextEditorWidget::idle, this, &MainWindow::onLogIdle);

	connect(ui->treeWidget_repos, &RepositoriesTreeWidget::dropped, this, &MainWindow::onRepositoriesTreeDropped);

	connect((AbstractPtyProcess *)getPtyProcess(), &AbstractPtyProcess::completed, this, &MainWindow::onPtyProcessCompleted);

	connect(this, &BasicMainWindow::remoteInfoChanged, [&](){
	ui->lineEdit_remote->setText(currentRemoteName());
	});

	// リモート監視
	connect(this, &BasicMainWindow::signalCheckRemoteUpdate, &m->remote_watcher, &RemoteWatcher::checkRemoteUpdate);
	connect(&m->remote_watcher_timer, &QTimer::timeout, &m->remote_watcher, &RemoteWatcher::checkRemoteUpdate);
	connect(this, &MainWindow::updateButton, [&](){
	doUpdateButton();
	});
	m->remote_watcher.start(this);
	setRemoteMonitoringEnabled(true);

	connect(this, &MainWindow::signalSetRemoteChanged, [&](bool f){
	setRemoteChanged(f);
	updateButton();
	});

	//

	QString path = getBookmarksFilePath();
	*getReposPtr() = RepositoryBookmark::load(path);
	updateRepositoriesList();

	webContext()->set_keep_alive_enabled(true);
	- getAvatarLoader()->start(webContext());
	+ getAvatarLoader()->start(this);
	connect(getAvatarLoader(), &AvatarLoader::updated, this, &MainWindow::onAvatarUpdated);

	*ptrUpdateFilesListCounter() = 0;

	connect(ui->widget_diff_view, &FileDiffWidget::textcodecChanged, [&](){ updateDiffView(); });

	if (!global->start_with_shift_key && appsettings()->remember_and_restore_window_position) {
	Qt::WindowStates state = windowState();
	MySettings settings;

	settings.beginGroup("MainWindow");
	bool maximized = settings.value("Maximized").toBool();
	restoreGeometry(settings.value("Geometry").toByteArray());
	// ui->splitter->restoreState(settings.value("SplitterState").toByteArray());
	settings.endGroup();
	if (maximized) {
	state \|= Qt::WindowMaximized;
	setWindowState(state);
	}
	}

	startTimers();
	}

	MainWindow::~MainWindow()
	{
	stopPtyProcess();

	getAvatarLoader()->stop();

	m->remote_watcher.quit();
	m->remote_watcher.wait();

	delete m;
	delete ui;
	}


	void MainWindow::notifyRemoteChanged(bool f)
	{
	postUserFunctionEvent([&](QVariant const &v){
	setRemoteChanged(v.toBool());
	updateButton();
	}, QVariant(f));
	}

	bool MainWindow::shown()
	{
	while (!misc::isExecutable(appsettings()->git_command) \|\| !misc::isExecutable(appsettings()->file_command)) {
	if (!execWelcomeWizardDialog()) {
	return false;
	}
	}

	setGitCommand(appsettings()->git_command, false);
	setFileCommand(appsettings()->file_command, false);

	writeLog(AboutDialog::appVersion() + '\n'); // print application version
	logGitVersion(); // print git command version

	setGpgCommand(appsettings()->gpg_command, false);

	{
	MySettings s;
	s.beginGroup("Remote");
	bool f = s.value("Online", true).toBool();
	s.endGroup();
	setRemoteOnline(f);
	}

	setUnknownRepositoryInfo();

	checkUser();

	return true;
	}

	void MainWindow::startTimers()
	{
	// interval 10ms

	connect(&m->interval_10ms_timer, &QTimer::timeout, [&](){
	const int ms = 10;
	auto *p1 = ptrUpdateCommitTableCounter();
	if (*p1 > 0) {
	if (*p1 > ms) {
	*p1 -= ms;
	} else {
	*p1 = 0;
	ui->tableWidget_log->viewport()->update();
	}
	}
	auto *p2 = ptrUpdateFilesListCounter();
	if (*p2 > 0) {
	if (*p2 > ms) {
	*p2 -= ms;
	} else {
	*p2 = 0;
	updateCurrentFilesList();
	}
	}
	});
	m->interval_10ms_timer.setInterval(10);
	m->interval_10ms_timer.start();

	startTimer(10);
	}

	TextEditorThemePtr BasicMainWindow::themeForTextEditor()
	{
	return global->theme->text_editor_theme;
	}

	void MainWindow::setCurrentLogRow(int row)
	{
	if (row >= 0 && row < ui->tableWidget_log->rowCount()) {
	ui->tableWidget_log->setCurrentCell(row, 2);
	ui->tableWidget_log->setFocus();
	updateStatusBarText();
	}
	}

	bool MainWindow::event(QEvent *event)
	{
	QEvent::Type et = event->type();
	if (et == QEvent::WindowActivate) {
	checkRemoteUpdate();
	} else if (et == QEvent::KeyPress) {
	auto e = dynamic_cast<QKeyEvent >(event);
	Q_ASSERT(e);
	int k = e->key();
	if (k == Qt::Key_Escape) {
	emit onEscapeKeyPressed();
	} else if (k == Qt::Key_Delete) {
	if (qApp->focusWidget() == ui->treeWidget_repos) {
	removeSelectedRepositoryFromBookmark(true);
	return true;
	}
	}
	}
	return BasicMainWindow::event(event);
	}

	bool MainWindow::eventFilter(QObject watched, QEvent event)
	{
	QEvent::Type et = event->type();

	if (et == QEvent::KeyPress) {
	if (QApplication::activeModalWidget()) {
	// thru
	} else {
	auto e = dynamic_cast<QKeyEvent >(event);
	Q_ASSERT(e);
	int k = e->key();
	if (k == Qt::Key_Tab) {
	if (centralWidget()->isAncestorOf(qApp->focusWidget())) {
	QList<QWidget *> tabstops;
	tabstops.push_back(ui->treeWidget_repos);
	tabstops.push_back(ui->tableWidget_log);
	if (ui->stackedWidget->currentWidget() == ui->page_files) {
	tabstops.push_back(ui->listWidget_files);
	} else if (ui->stackedWidget->currentWidget() == ui->page_uncommited) {
	tabstops.push_back(ui->listWidget_unstaged);
	tabstops.push_back(ui->toolButton_select_all);
	tabstops.push_back(ui->toolButton_stage);
	tabstops.push_back(ui->toolButton_unstage);
	tabstops.push_back(ui->toolButton_commit);
	tabstops.push_back(ui->listWidget_staged);
	}
	tabstops.push_back(ui->widget_diff_view);
	int n = tabstops.size();
	if (n > 0) {
	QWidget *f = qApp->focusWidget();
	int i;
	for (i = 0; i < n; i++) {
	if (tabstops[i] == f) {
	break;
	}
	}
	if (i < n) {
	if (e->modifiers() & Qt::ShiftModifier) {
	i = (i + n - 1) % n;
	} else {
	i = (i + 1) % n;
	}
	tabstops[i]->setFocus();
	}
	}
	return true;
	}
	}
	if (k == Qt::Key_Escape) {
	if (centralWidget()->isAncestorOf(qApp->focusWidget())) {
	ui->treeWidget_repos->setFocus();
	return true;
	}
	}
	if (e->modifiers() & Qt::ControlModifier) {
	if (k == Qt::Key_Up \|\| k == Qt::Key_Down) {
	int rows = ui->tableWidget_log->rowCount();
	int row = ui->tableWidget_log->currentRow();
	if (k == Qt::Key_Up) {
	if (row > 0) {
	row--;
	}
	} else if (k == Qt::Key_Down) {
	if (row + 1 < rows) {
	row++;
	}
	}
	ui->tableWidget_log->setCurrentCell(row, 0);
	return true;
	}
	}
	if (watched == ui->treeWidget_repos) {
	if (k == Qt::Key_Enter \|\| k == Qt::Key_Return) {
	openSelectedRepository();
	return true;
	}
	if (!(e->modifiers() & Qt::ControlModifier)) {
	if (k >= 0 && k < 128 && QChar((uchar)k).isLetterOrNumber()) {
	appendCharToRepoFilter(k);
	return true;
	}
	if (k == Qt::Key_Backspace) {
	backspaceRepoFilter();
	return true;
	}
	if (k == Qt::Key_Escape) {
	clearRepoFilter();
	return true;
	}
	}
	} else if (watched == ui->tableWidget_log) {
	if (k == Qt::Key_Home) {
	setCurrentLogRow(0);
	return true;
	}
	if (k == Qt::Key_Escape) {
	ui->treeWidget_repos->setFocus();
	return true;
	}
	} else if (watched == ui->listWidget_files \|\| watched == ui->listWidget_unstaged \|\| watched == ui->listWidget_staged) {
	if (k == Qt::Key_Escape) {
	ui->tableWidget_log->setFocus();
	return true;
	}
	}
	}
	} else if (et == QEvent::FocusIn) {
	// ファイルリストがフォーカスを得たとき、diffビューを更新する。（コンテキストメニュー対応）
	if (watched == ui->listWidget_unstaged) {
	m->last_focused_file_list = watched;
	updateStatusBarText();
	updateUnstagedFileCurrentItem();
	return true;
	}
	if (watched == ui->listWidget_staged) {
	m->last_focused_file_list = watched;
	updateStatusBarText();
	updateStagedFileCurrentItem();
	return true;
	}
	if (watched == ui->listWidget_files) {
	m->last_focused_file_list = watched;
	}
	}
	return false;
	}

	void MainWindow::closeEvent(QCloseEvent *event)
	{
	if (appsettings()->remember_and_restore_window_position) {
	setWindowOpacity(0);
	Qt::WindowStates state = windowState();
	bool maximized = (state & Qt::WindowMaximized) != 0;
	if (maximized) {
	state &= ~Qt::WindowMaximized;
	setWindowState(state);
	}
	{
	MySettings settings;

	settings.beginGroup("MainWindow");
	settings.setValue("Maximized", maximized);
	settings.setValue("Geometry", saveGeometry());
	// settings.setValue("SplitterState", ui->splitter->saveState());
	settings.endGroup();
	}
	}
	QMainWindow::closeEvent(event);
	}

	void MainWindow::setStatusBarText(QString const &text)
	{
	m->status_bar_label->setText(text);
	}

	void MainWindow::clearStatusBarText()
	{
	setStatusBarText(QString());
	}

	QString BasicMainWindow::getObjectID(QListWidgetItem *item)
	{
	int i = indexOfDiff(item);
	if (i >= 0 && i < diffResult()->size()) {
	Git::Diff const &diff = diffResult()->at(i);
	return diff.blob.a_id;
	}
	return QString();
	}

	void MainWindow::onLogVisibilityChanged()
	{
	ui->action_window_log->setChecked(ui->dockWidget_log->isVisible());
	}

	void MainWindow::internalWriteLog(char const *ptr, int len)
	{
	ui->widget_log->logicalMoveToBottom();
	ui->widget_log->write(ptr, len, false);
	ui->widget_log->setChanged(false);
	setInteractionCanceled(false);
	}

	void BasicMainWindow::writeLog(QString const &str)
	{
	std::string s = str.toStdString();
	writeLog(s.c_str(), s.size());
	}

	void BasicMainWindow::writeLog_(QByteArray ba)
	{
	if (!ba.isEmpty()) {
	writeLog(ba.data(), ba.size());
	}
	}

	void MainWindow::buildRepoTree(QString const &group, QTreeWidgetItem item, QList<RepositoryItem> repos)
	{
	QString name = item->text(0);
	if (isGroupItem(item)) {
	int n = item->childCount();
	for (int i = 0; i < n; i++) {
	QTreeWidgetItem *child = item->child(i);
	QString sub = group / name;
	buildRepoTree(sub, child, repos);
	}
	} else {
	RepositoryItem const *repo = repositoryItem(item);
	if (repo) {
	RepositoryItem newrepo = *repo;
	newrepo.name = name;
	newrepo.group = group;
	item->setData(0, IndexRole, repos->size());
	repos->push_back(newrepo);
	}
	}
	}

	void MainWindow::refrectRepositories()
	{
	QList<RepositoryItem> newrepos;
	int n = ui->treeWidget_repos->topLevelItemCount();
	for (int i = 0; i < n; i++) {
	QTreeWidgetItem *item = ui->treeWidget_repos->topLevelItem(i);
	buildRepoTree(QString(), item, &newrepos);
	}
	*getReposPtr() = std::move(newrepos);
	saveRepositoryBookmarks();
	}

	void MainWindow::onRepositoriesTreeDropped()
	{
	refrectRepositories();
	QTreeWidgetItem *item = ui->treeWidget_repos->currentItem();
	if (item) item->setExpanded(true);
	}

	const QPixmap &MainWindow::digitsPixmap() const
	{
	return m->digits;
	}

	int MainWindow::digitWidth() const
	{
	return 5;
	}

	int MainWindow::digitHeight() const
	{
	return 7;
	}

	void MainWindow::drawDigit(QPainter *pr, int x, int y, int n) const
	{
	int w = digitWidth();
	int h = digitHeight();
	pr->drawPixmap(x, y, w, h, m->digits, n * w, 0, w, h);
	}

	QString BasicMainWindow::defaultWorkingDir() const
	{
	return appsettings()->default_working_dir;
	}

	QColor MainWindow::color(unsigned int i)
	{
	unsigned int n = m->graph_color.width();
	if (n > 0) {
	n--;
	if (i > n) i = n;
	QRgb const p = (QRgb const )m->graph_color.scanLine(0);
	return QColor(qRed(p[i]), qGreen(p[i]), qBlue(p[i]));
	}
	return Qt::black;
	}

	QString MainWindow::currentWorkingCopyDir() const
	{
	QString workdir = BasicMainWindow::currentWorkingCopyDir();
	if (workdir.isEmpty()) {
	RepositoryItem const *repo = selectedRepositoryItem();
	if (repo) {
	workdir = repo->local_dir;
	return workdir;
	}
	}
	return workdir;
	}

	RepositoryItem const BasicMainWindow::findRegisteredRepository(QString workdir) const
	{
	workdir = QDir(workdir).absolutePath();
	workdir->replace('\\', '/');

	if (Git::isValidWorkingCopy(*workdir)) {
	for (RepositoryItem const &item : getRepos()) {
	Qt::CaseSensitivity cs = Qt::CaseSensitive;
	#ifdef Q_OS_WIN
	cs = Qt::CaseInsensitive;
	#endif
	if (workdir->compare(item.local_dir, cs) == 0) {
	return &item;
	}
	}
	}
	return nullptr;
	}

	int MainWindow::repositoryIndex_(QTreeWidgetItem const *item) const
	{
	if (item) {
	int i = item->data(0, IndexRole).toInt();
	if (i >= 0 && i < getRepos().size()) {
	return i;
	}
	}
	return -1;
	}

	RepositoryItem const MainWindow::repositoryItem(QTreeWidgetItem const item) const
	{
	int row = repositoryIndex_(item);
	auto const &repos = getRepos();
	return (row >= 0 && row < repos.size()) ? &repos[row] : nullptr;
	}

	RepositoryItem const *MainWindow::selectedRepositoryItem() const
	{
	return repositoryItem(ui->treeWidget_repos->currentItem());
	}

	static QTreeWidgetItem *newQTreeWidgetItem()
	{
	auto *item = new QTreeWidgetItem;
	item->setSizeHint(0, QSize(20, 20));
	return item;
	}

	QTreeWidgetItem *MainWindow::newQTreeWidgetFolderItem(QString const &name)
	{
	QTreeWidgetItem *item = newQTreeWidgetItem();
	item->setText(0, name);
	item->setData(0, IndexRole, GroupItem);
	item->setIcon(0, getFolderIcon());
	item->setFlags(item->flags() \| Qt::ItemIsEditable);
	return item;
	}

	void MainWindow::updateRepositoriesList()
	{
	QString path = getBookmarksFilePath();

	auto *repos = getReposPtr();
	*repos = RepositoryBookmark::load(path);

	QString filter = getRepositoryFilterText();

	ui->treeWidget_repos->clear();

	std::map<QString, QTreeWidgetItem *> parentmap;

	for (int i = 0; i < repos->size(); i++) {
	RepositoryItem const &repo = repos->at(i);
	if (!filter.isEmpty() && repo.name.indexOf(filter, 0, Qt::CaseInsensitive) < 0) {
	continue;
	}
	QTreeWidgetItem *parent = nullptr;
	{
	QString group = repo.group;
	if (group.startsWith('/')) {
	group = group.mid(1);
	}
	auto it = parentmap.find(group);
	if (it != parentmap.end()) {
	parent = it->second;
	}
	if (!parent) {
	QStringList list = group.split('/', QString::SkipEmptyParts);
	if (list.isEmpty()) {
	list.push_back(tr("Default"));
	}
	for (QString const &name : list) {
	if (name.isEmpty()) continue;
	if (!parent) {
	auto it = parentmap.find(name);
	if (it != parentmap.end()) {
	parent = it->second;
	} else {
	parent = newQTreeWidgetFolderItem(name);
	ui->treeWidget_repos->addTopLevelItem(parent);
	}
	} else {
	QTreeWidgetItem *child = newQTreeWidgetFolderItem(name);
	parent->addChild(child);
	parent = child;
	}
	parent->setExpanded(true);
	}
	Q_ASSERT(parent);
	parentmap[group] = parent;
	}
	parent->setData(0, FilePathRole, "");
	}
	QTreeWidgetItem *child = newQTreeWidgetItem();
	child->setText(0, repo.name);
	child->setData(0, IndexRole, i);
	child->setIcon(0, getRepositoryIcon());
	child->setFlags(child->flags() & ~Qt::ItemIsDropEnabled);
	parent->addChild(child);
	parent->setExpanded(true);
	}
	}

	void MainWindow::showFileList(FilesListType files_list_type)
	{
	switch (files_list_type) {
	case FilesListType::SingleList:
	ui->stackedWidget->setCurrentWidget(ui->page_files);
	break;
	case FilesListType::SideBySide:
	ui->stackedWidget->setCurrentWidget(ui->page_uncommited);
	break;
	}
	}

	void MainWindow::clearFileList()
	{
	showFileList(FilesListType::SingleList);
	ui->listWidget_unstaged->clear();
	ui->listWidget_staged->clear();
	ui->listWidget_files->clear();
	}

	void MainWindow::clearDiffView()
	{
	ui->widget_diff_view->clearDiffView();
	}

	void MainWindow::clearRepositoryInfo()
	{
	internalClearRepositoryInfo();
	ui->label_repo_name->setText(QString());
	ui->label_branch_name->setText(QString());
	}

	void MainWindow::setRepositoryInfo(QString const &reponame, QString const &brname)
	{
	ui->label_repo_name->setText(reponame);
	ui->label_branch_name->setText(brname);
	}

	void MainWindow::updateFilesList(QString id, bool wait)
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	if (!wait) return;

	clearFileList();

	Git::FileStatusList stats = g->status();
	setUncommitedChanges(!stats.empty());

	FilesListType files_list_type = FilesListType::SingleList;

	bool staged = false;
	auto AddItem = [&](QString const &filename, QString header, int idiff){
	if (header.isEmpty()) {
	header = "(??\?) "; // damn trigraph
	}
	QListWidgetItem *item = new QListWidgetItem(header + filename);
	item->setData(FilePathRole, filename);
	item->setData(DiffIndexRole, idiff);
	item->setData(HunkIndexRole, -1);
	switch (files_list_type) {
	case FilesListType::SingleList:
	ui->listWidget_files->addItem(item);
	break;
	case FilesListType::SideBySide:
	if (staged) {
	ui->listWidget_staged->addItem(item);
	} else {
	ui->listWidget_unstaged->addItem(item);
	}
	break;
	}
	};

	if (id.isEmpty()) {
	bool uncommited = isThereUncommitedChanges();
	if (uncommited) {
	files_list_type = FilesListType::SideBySide;
	}
	if (!makeDiff(uncommited ? QString() : id, diffResult())) {
	return;
	}

	std::map<QString, int> diffmap;

	for (int idiff = 0; idiff < diffResult()->size(); idiff++) {
	Git::Diff const &diff = diffResult()->at(idiff);
	QString filename = diff.path;
	if (!filename.isEmpty()) {
	diffmap[filename] = idiff;
	}
	}

	showFileList(files_list_type);

	for (Git::FileStatus const &s : stats) {
	staged = (s.isStaged() && s.code_y() == ' ');
	int idiff = -1;
	QString header;
	auto it = diffmap.find(s.path1());
	if (it != diffmap.end()) {
	idiff = it->second;
	}
	QString path = s.path1();
	if (s.code() == Git::FileStatusCode::Unknown) {
	qDebug() << "something wrong...";
	} else if (s.code() == Git::FileStatusCode::Untracked) {
	// nop
	} else if (s.isUnmerged()) {
	header += "(unmerged) ";
	} else if (s.code() == Git::FileStatusCode::AddedToIndex) {
	header = "(add) ";
	} else if (s.code_x() == 'D' \|\| s.code_y() == 'D' \|\| s.code() == Git::FileStatusCode::DeletedFromIndex) {
	header = "(del) ";
	} else if (s.code_x() == 'R' \|\| s.code() == Git::FileStatusCode::RenamedInIndex) {
	header = "(ren) ";
	path = s.path2(); // renamed newer path
	} else if (s.code_x() == 'M' \|\| s.code_y() == 'M') {
	header = "(chg) ";
	}
	AddItem(path, header, idiff);
	}
	} else {
	if (!makeDiff(id, diffResult())) {
	return;
	}
	showFileList(files_list_type);
	addDiffItems(diffResult(), AddItem);
	}

	for (Git::Diff const &diff : *diffResult()) {
	QString key = GitDiff::makeKey(diff);
	(*getDiffCacheMap())[key] = diff;
	}
	}

	void MainWindow::updateFilesList(Git::CommitItem const &commit, bool wait)
	{
	QString id;
	if (Git::isUncommited(commit)) {
	// empty id for uncommited changes
	} else {
	id = commit.commit_id;
	}
	updateFilesList(id, wait);
	}

	void MainWindow::updateCurrentFilesList()
	{
	auto logs = getLogs();
	QTableWidgetItem *item = ui->tableWidget_log->item(selectedLogIndex(), 0);
	if (!item) return;
	int row = item->data(IndexRole).toInt();
	int count = (int)logs.size();
	if (row < count) {
	updateFilesList(logs[row], true);
	}
	}

	void MainWindow::prepareLogTableWidget()
	{
	QStringList cols = {
	tr("Graph"),
	tr("Commit"),
	tr("Date"),
	tr("Author"),
	tr("Description"),
	};
	int n = cols.size();
	ui->tableWidget_log->setColumnCount(n);
	ui->tableWidget_log->setRowCount(0);
	for (int i = 0; i < n; i++) {
	QString const &text = cols[i];
	auto *item = new QTableWidgetItem(text);
	ui->tableWidget_log->setHorizontalHeaderItem(i, item);
	}

	updateCommitGraph(); // コミットグラフを更新
	}

	void MainWindow::detectGitServerType(GitPtr g)
	{
	setServerType(ServerType::Standard);
	*ptrGitHub() = GitHubRepositoryInfo();

	QString push_url;
	QList<Git::Remote> remotes;
	g->getRemoteURLs(&remotes);
	for (Git::Remote const &r : remotes) {
	if (r.purpose == "push") {
	push_url = r.url;
	}
	}

	auto Check = [&](QString const &s){
	int i = push_url.indexOf(s);
	if (i > 0) return i + s.size();
	return 0;
	};

	// check GitHub
	int pos = Check("@github.com:");
	if (pos == 0) {
	pos = Check("://github.com/");
	}
	if (pos > 0) {
	int end = push_url.size();
	{
	QString s = ".git";
	if (push_url.endsWith(s)) {
	end -= s.size();
	}
	}
	QString s = push_url.mid(pos, end - pos);
	int i = s.indexOf('/');
	if (i > 0) {
	auto *p = ptrGitHub();
	QString user = s.mid(0, i);
	QString repo = s.mid(i + 1);
	p->owner_account_name = user;
	p->repository_name = repo;
	}
	setServerType(ServerType::GitHub);
	}
	}

	bool BasicMainWindow::fetch(GitPtr g, bool prune)
	{
	setPtyCondition(PtyCondition::Fetch);
	setPtyProcessOk(true);
	g->fetch(getPtyProcess(), prune);
	while (1) {
	if (getPtyProcess()->wait(1)) break;
	QApplication::processEvents();
	}
	return getPtyProcessOk();
	}

	void MainWindow::clearLog()
	{
	clearLogs();
	clearLabelMap();
	setUncommitedChanges(false);
	ui->tableWidget_log->clearContents();
	ui->tableWidget_log->scrollToTop();
	}

	void MainWindow::openRepository_(GitPtr g)
	{
	getObjCache()->setup(g);

	if (isValidWorkingCopy(g)) {

	bool do_fetch = isRemoteOnline() && (getForceFetch() \|\| appsettings()->automatically_fetch_when_opening_the_repository);
	setForceFetch(false);
	if (do_fetch) {
	if (!fetch(g, false)) {
	return;
	}
	}

	clearLog();
	clearRepositoryInfo();

	detectGitServerType(g);

	updateFilesList(QString(), true);

	bool canceled = false;
	ui->tableWidget_log->setEnabled(false);

	// ログを取得
	setLogs(retrieveCommitLog(g));
	// ブランチを取得
	queryBranches(g);
	// タグを取得
	ptrTagMap()->clear();
	QList<Git::Tag> tags = g->tags();
	for (Git::Tag const &tag : tags) {
	Git::Tag t = tag;
	t.id = getObjCache()->getCommitIdFromTag(t.id);
	(*ptrTagMap())[t.id].push_back(t);
	}

	ui->tableWidget_log->setEnabled(true);
	updateCommitTableLater();
	if (canceled) return;

	QString branch_name;
	if (currentBranch().flags & Git::Branch::HeadDetachedAt) {
	branch_name += QString("(HEAD detached at %1)").arg(currentBranchName());
	}
	if (currentBranch().flags & Git::Branch::HeadDetachedFrom) {
	branch_name += QString("(HEAD detached from %1)").arg(currentBranchName());
	}
	if (branch_name.isEmpty()) {
	branch_name = currentBranchName();
	}

	QString repo_name = currentRepositoryName();
	setRepositoryInfo(repo_name, branch_name);
	} else {
	clearLog();
	clearRepositoryInfo();
	}


	updateRemoteInfo();

	updateWindowTitle(g);

	setHeadId(getObjCache()->revParse("HEAD"));

	if (isThereUncommitedChanges()) {
	Git::CommitItem item;
	item.parent_ids.push_back(currentBranch().id);
	item.message = tr("Uncommited changes");
	auto p = getLogsPtr();
	p->insert(p->begin(), item);
	}

	prepareLogTableWidget();

	auto const &logs = getLogs();
	const int count = logs.size();

	ui->tableWidget_log->setRowCount(count);

	int selrow = -1;

	for (int row = 0; row < count; row++) {
	Git::CommitItem const *commit = &logs[row];
	{
	auto *item = new QTableWidgetItem;
	item->setData(IndexRole, row);
	ui->tableWidget_log->setItem(row, 0, item);
	}
	int col = 1; // カラム0はコミットグラフなので、その次から
	auto AddColumn = [&](QString const &text, bool bold, QString const &tooltip){
	auto *item = new QTableWidgetItem(text);
	if (!tooltip.isEmpty()) {
	QString tt = tooltip;
	tt.replace('\n', ' ');
	tt = tt.toHtmlEscaped();
	tt = "<p style='white-space: pre'>" + tt + "</p>";
	item->setToolTip(tt);
	}
	if (bold) {
	QFont font = item->font();
	font.setBold(true);
	item->setFont(font);
	}
	ui->tableWidget_log->setItem(row, col, item);
	col++;
	};
	QString commit_id;
	QString datetime;
	QString author;
	QString message;
	QString message_ex;
	bool isHEAD = (commit->commit_id == getHeadId());
	bool bold = false;
	{
	if (Git::isUncommited(*commit)) { // 未コミットの時
	bold = true; // 太字
	selrow = row;
	} else {
	if (isHEAD && !isThereUncommitedChanges()) { // HEADで、未コミットがないとき
	bold = true; // 太字
	selrow = row;
	}
	commit_id = abbrevCommitID(*commit);
	}
	datetime = misc::makeDateTimeString(commit->commit_date);
	author = commit->author;
	message = commit->message;
	message_ex = makeCommitInfoText(row, &(*getLabelMap())[row]);
	}
	AddColumn(commit_id, false, QString());
	AddColumn(datetime, false, QString());
	AddColumn(author, false, QString());
	AddColumn(message, bold, message + message_ex);
	ui->tableWidget_log->setRowHeight(row, 24);
	}
	ui->tableWidget_log->resizeColumnsToContents();
	ui->tableWidget_log->horizontalHeader()->setStretchLastSection(false);
	ui->tableWidget_log->horizontalHeader()->setStretchLastSection(true);

	m->last_focused_file_list = nullptr;

	ui->tableWidget_log->setFocus();
	setCurrentLogRow(0);

	QTableWidgetItem *p = ui->tableWidget_log->item(selrow < 0 ? 0 : selrow, 2);
	ui->tableWidget_log->setCurrentItem(p);

	m->remote_watcher.setCurrent(currentRemoteName(), currentBranchName());

	checkRemoteUpdate();
	doUpdateButton();
	}

	void MainWindow::removeSelectedRepositoryFromBookmark(bool ask)
	{
	int i = indexOfRepository(ui->treeWidget_repos->currentItem());
	removeRepositoryFromBookmark(i, ask);
	}

	void MainWindow::doUpdateButton()
	{
	setNetworkingCommandsEnabled(isRemoteOnline());

	ui->toolButton_fetch->setDot(getRemoteChanged());

	Git::Branch b = currentBranch();
	ui->toolButton_push->setNumber(b.ahead > 0 ? b.ahead : -1);
	ui->toolButton_pull->setNumber(b.behind > 0 ? b.behind : -1);
	}

	void MainWindow::updateStatusBarText()
	{
	QString text;

	QWidget *w = qApp->focusWidget();
	if (w == ui->treeWidget_repos) {
	RepositoryItem const *repo = selectedRepositoryItem();
	if (repo) {
	text = QString("%1 : %2")
	.arg(repo->name)
	.arg(misc::normalizePathSeparator(repo->local_dir))
	;
	}
	} else if (w == ui->tableWidget_log) {
	QTableWidgetItem *item = ui->tableWidget_log->item(selectedLogIndex(), 0);
	if (item) {
	auto const &logs = getLogs();
	int row = item->data(IndexRole).toInt();
	if (row < (int)logs.size()) {
	Git::CommitItem const &commit = logs[row];
	if (Git::isUncommited(commit)) {
	text = tr("Uncommited changes");
	} else {
	QString id = commit.commit_id;
	text = QString("%1 : %2%3")
	.arg(id.mid(0, 7))
	.arg(commit.message)
	.arg(makeCommitInfoText(row, nullptr))
	;
	}
	}
	}
	}

	setStatusBarText(text);
	}

	void MainWindow::on_action_commit_triggered()
	{
	commit();
	}

	void MainWindow::on_action_fetch_triggered()
	{
	if (!isRemoteOnline()) return;

	reopenRepository(true, [&](GitPtr g){
	fetch(g, false);
	});
	}

	void MainWindow::on_action_fetch_prune_triggered()
	{
	if (!isRemoteOnline()) return;

	reopenRepository(true, [&](GitPtr g){
	fetch(g, true);
	});
	}

	void MainWindow::on_action_push_triggered()
	{
	push();
	}

	void MainWindow::on_action_pull_triggered()
	{
	if (!isRemoteOnline()) return;

	reopenRepository(true, [&](GitPtr g){
	setPtyCondition(PtyCondition::Pull);
	setPtyProcessOk(true);
	g->pull(getPtyProcess());
	while (1) {
	if (getPtyProcess()->wait(1)) break;
	QApplication::processEvents();
	}
	});
	}

	void MainWindow::on_toolButton_push_clicked()
	{
	ui->action_push->trigger();
	}

	void MainWindow::on_toolButton_pull_clicked()
	{
	ui->action_pull->trigger();
	}

	void MainWindow::on_treeWidget_repos_currentItemChanged(QTreeWidgetItem * /current/, QTreeWidgetItem * /previous/)
	{
	updateStatusBarText();
	}

	void MainWindow::on_treeWidget_repos_itemDoubleClicked(QTreeWidgetItem * /item/, int /column/)
	{
	openSelectedRepository();
	}

	void BasicMainWindow::execCommitPropertyDialog(QWidget parent, Git::CommitItem const commit)
	{
	CommitPropertyDialog dlg(parent, this, commit);
	dlg.exec();
	}

	int MainWindow::indexOfRepository(QTreeWidgetItem const *treeitem) const
	{
	if (!treeitem) return -1;
	return treeitem->data(0, IndexRole).toInt();
	}

	void MainWindow::on_treeWidget_repos_customContextMenuRequested(const QPoint &pos)
	{
	QTreeWidgetItem *treeitem = ui->treeWidget_repos->currentItem();
	if (!treeitem) return;

	RepositoryItem const *repo = repositoryItem(treeitem);

	int index = indexOfRepository(treeitem);
	if (isGroupItem(treeitem)) { // group item
	QMenu menu;
	QAction *a_add_new_group = menu.addAction(tr("&Add new group"));
	QAction *a_delete_group = menu.addAction(tr("&Delete group"));
	QAction *a_rename_group = menu.addAction(tr("&Rename group"));
	QPoint pt = ui->treeWidget_repos->mapToGlobal(pos);
	QAction *a = menu.exec(pt + QPoint(8, -8));
	if (a) {
	if (a == a_add_new_group) {
	QTreeWidgetItem *child = newQTreeWidgetFolderItem(tr("New group"));
	treeitem->addChild(child);
	child->setFlags(child->flags() \| Qt::ItemIsEditable);
	ui->treeWidget_repos->setCurrentItem(child);
	return;
	}
	if (a == a_delete_group) {
	QTreeWidgetItem *parent = treeitem->parent();
	if (parent) {
	int i = parent->indexOfChild(treeitem);
	delete parent->takeChild(i);
	} else {
	int i = ui->treeWidget_repos->indexOfTopLevelItem(treeitem);
	delete ui->treeWidget_repos->takeTopLevelItem(i);
	}
	refrectRepositories();
	return;
	}
	if (a == a_rename_group) {
	ui->treeWidget_repos->editItem(treeitem);
	return;
	}
	}
	} else if (repo) { // repository item
	QString open_terminal = tr("Open &terminal");
	QString open_commandprompt = tr("Open command promp&t");
	QMenu menu;
	QAction *a_open = menu.addAction(tr("&Open"));
	menu.addSeparator();
	#ifdef Q_OS_WIN
	QAction *a_open_terminal = menu.addAction(open_commandprompt);
	(void)open_terminal;
	#else
	QAction *a_open_terminal = menu.addAction(open_terminal);
	(void)open_commandprompt;
	#endif
	QAction *a_open_folder = menu.addAction(tr("Open &folder"));
	menu.addSeparator();
	QAction *a_remove = menu.addAction(tr("&Remove"));

	menu.addSeparator();
	QAction *a_properties = addMenuActionProperty(&menu);

	QPoint pt = ui->treeWidget_repos->mapToGlobal(pos);
	QAction *a = menu.exec(pt + QPoint(8, -8));
	if (a) {
	if (a == a_open) {
	openSelectedRepository();
	return;
	}
	if (a == a_open_folder) {
	openExplorer(repo);
	return;
	}
	if (a == a_open_terminal) {
	openTerminal(repo);
	return;
	}
	if (a == a_remove) {
	removeRepositoryFromBookmark(index, true);
	return;
	}
	if (a == a_properties) {
	execRepositoryPropertyDialog(repo->local_dir);
	return;
	}
	}
	}
	}

	void MainWindow::on_tableWidget_log_customContextMenuRequested(const QPoint &pos)
	{
	Git::CommitItem const *commit = selectedCommitItem();
	if (commit) {
	bool is_valid_commit_id = Git::isValidID(commit->commit_id);
	int row = selectedLogIndex();

	QMenu menu;

	QAction *a_copy_id_7_letters = menu.addAction(tr("Copy commit id (7 letters)"));
	QAction *a_copy_id_complete = menu.addAction(tr("Copy commit id (completely)"));

	menu.addSeparator();

	QAction *a_checkout = menu.addAction(tr("Checkout/Branch..."));

	menu.addSeparator();

	QAction *a_edit_comment = nullptr;
	if (row == 0 && currentBranch().ahead > 0) {
	a_edit_comment = menu.addAction(tr("Edit comment..."));
	}

	QAction *a_merge = is_valid_commit_id ? menu.addAction(tr("Merge")) : nullptr;
	QAction *a_rebase = is_valid_commit_id ? menu.addAction(tr("Rebase")) : nullptr;
	QAction *a_cherrypick = is_valid_commit_id ? menu.addAction(tr("Cherry-pick")) : nullptr;
	QAction *a_edit_tags = is_valid_commit_id ? menu.addAction(tr("Edit tags...")) : nullptr;
	QAction *a_revert = is_valid_commit_id ? menu.addAction(tr("Revert")) : nullptr;

	QAction *a_reset_head = nullptr;
	#if 0 // 下手に使うと危険なので、とりあえず無効にしておく
	if (is_valid_commit_id && commit->commit_id == head_id_) {
	a_reset_head = menu.addAction(tr("Reset HEAD"));
	}
	#endif

	menu.addSeparator();

	QAction *a_delbranch = is_valid_commit_id ? menu.addAction(tr("Delete branch...")) : nullptr;
	QAction *a_delrembranch = remoteBranches(commit->commit_id, nullptr).isEmpty() ? nullptr : menu.addAction(tr("Delete remote branch..."));

	menu.addSeparator();

	QAction *a_explore = is_valid_commit_id ? menu.addAction(tr("Explore")) : nullptr;
	QAction *a_properties = addMenuActionProperty(&menu);

	QAction *a = menu.exec(ui->tableWidget_log->viewport()->mapToGlobal(pos) + QPoint(8, -8));
	if (a) {
	if (a == a_copy_id_7_letters) {
	qApp->clipboard()->setText(commit->commit_id.mid(0, 7));
	return;
	}
	if (a == a_copy_id_complete) {
	qApp->clipboard()->setText(commit->commit_id);
	return;
	}
	if (a == a_properties) {
	execCommitPropertyDialog(this, commit);
	return;
	}
	if (a == a_edit_comment) {
	commitAmend();
	return;
	}
	if (a == a_checkout) {
	checkout(this, commit);
	return;
	}
	if (a == a_delbranch) {
	deleteBranch(commit);
	return;
	}
	if (a == a_delrembranch) {
	deleteRemoteBranch(commit);
	return;
	}
	if (a == a_merge) {
	mergeBranch(commit);
	return;
	}
	if (a == a_rebase) {
	rebaseBranch(commit);
	return;
	}
	if (a == a_cherrypick) {
	cherrypick(commit);
	return;
	}
	if (a == a_edit_tags) {
	ui->action_edit_tags->trigger();
	return;
	}
	if (a == a_revert) {
	revertCommit();
	return;
	}
	if (a == a_explore) {
	execCommitExploreWindow(this, commit);
	return;
	}
	if (a == a_reset_head) {
	reopenRepository(false, [](GitPtr g){
	g->reset_head1();
	});
	return;
	}
	}
	}
	}

	void MainWindow::on_listWidget_files_customContextMenuRequested(const QPoint &pos)
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	QMenu menu;
	QAction *a_delete = menu.addAction(tr("Delete"));
	QAction *a_untrack = menu.addAction(tr("Untrack"));
	QAction *a_history = menu.addAction(tr("History"));
	QAction *a_blame = menu.addAction(tr("Blame"));
	QAction *a_properties = addMenuActionProperty(&menu);

	QPoint pt = ui->listWidget_files->mapToGlobal(pos) + QPoint(8, -8);
	QAction *a = menu.exec(pt);
	if (a) {
	QListWidgetItem *item = ui->listWidget_files->currentItem();
	if (a == a_delete) {
	if (askAreYouSureYouWantToRun("Delete", tr("Delete selected files."))) {
	for_each_selected_files([&](QString const &path){
	g->removeFile(path);
	g->chdirexec([&](){
	QFile(path).remove();
	return true;
	});
	});
	openRepository(false);
	}
	} else if (a == a_untrack) {
	if (askAreYouSureYouWantToRun("Untrack", tr("rm --cached files"))) {
	for_each_selected_files([&](QString const &path){
	g->rm_cached(path);
	});
	openRepository(false);
	}
	} else if (a == a_history) {
	execFileHistory(item);
	} else if (a == a_blame) {
	blame(item);
	} else if (a == a_properties) {
	execFilePropertyDialog(item);
	}
	}
	}

	void MainWindow::on_listWidget_unstaged_customContextMenuRequested(const QPoint &pos)
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	QList<QListWidgetItem *> items = ui->listWidget_unstaged->selectedItems();
	if (!items.isEmpty()) {
	QMenu menu;
	QAction *a_stage = menu.addAction(tr("Stage"));
	QAction *a_reset_file = menu.addAction(tr("Reset"));
	QAction *a_ignore = menu.addAction(tr("Ignore"));
	QAction *a_delete = menu.addAction(tr("Delete"));
	QAction *a_untrack = menu.addAction(tr("Untrack"));
	QAction *a_history = menu.addAction(tr("History"));
	QAction *a_blame = menu.addAction(tr("Blame"));
	QAction *a_properties = addMenuActionProperty(&menu);
	QPoint pt = ui->listWidget_unstaged->mapToGlobal(pos) + QPoint(8, -8);
	QAction *a = menu.exec(pt);
	if (a) {
	QListWidgetItem *item = ui->listWidget_unstaged->currentItem();
	if (a == a_stage) {
	for_each_selected_files([&](QString const &path){
	g->stage(path);
	});
	updateCurrentFilesList();
	return;
	}
	if (a == a_reset_file) {
	QStringList paths;
	for_each_selected_files([&](QString const &path){
	paths.push_back(path);
	});
	resetFile(paths);
	return;
	}
	if (a == a_ignore) {
	QString gitignore_path = currentWorkingCopyDir() / ".gitignore";
	if (items.size() == 1) {
	QString file = getFilePath(items[0]);
	EditGitIgnoreDialog dlg(this, gitignore_path, file);
	if (dlg.exec() == QDialog::Accepted) {
	QString appending = dlg.text();
	if (!appending.isEmpty()) {
	QString text;

	QString path = gitignore_path;
	path.replace('/', QDir::separator());

	{
	QFile file(path);
	if (file.open(QFile::ReadOnly)) {
	text += QString::fromUtf8(file.readAll());
	}
	}

	size_t n = text.size();
	if (n > 0 && text[(int)n - 1] != '\n') {
	text += '\n'; // 最後に改行を追加
	}

	text += appending + '\n';

	{
	QFile file(path);
	if (file.open(QFile::WriteOnly)) {
	file.write(text.toUtf8());
	}
	}
	updateCurrentFilesList();
	return;
	}
	} else {
	return;
	}
	}

	QString append;
	for_each_selected_files([&](QString const &path){
	if (path == ".gitignore") {
	// skip
	} else {
	append += path + '\n';
	}
	});
	if (TextEditDialog::editFile(this, gitignore_path, ".gitignore", append)) {
	updateCurrentFilesList();
	}
	return;
	}
	if (a == a_delete) {
	if (askAreYouSureYouWantToRun("Delete", "Delete selected files.")) {
	for_each_selected_files([&](QString const &path){
	g->removeFile(path);
	g->chdirexec([&](){
	QFile(path).remove();
	return true;
	});
	});
	openRepository(false);
	}
	return;
	}
	if (a == a_untrack) {
	if (askAreYouSureYouWantToRun("Untrack", "rm --cached")) {
	for_each_selected_files([&](QString const &path){
	g->rm_cached(path);
	});
	openRepository(false);
	}
	return;
	}
	if (a == a_history) {
	execFileHistory(item);
	return;
	}
	if (a == a_blame) {
	blame(item);
	return;
	}
	if (a == a_properties) {
	execFilePropertyDialog(item);
	return;
	}
	}
	}
	}

	void MainWindow::on_listWidget_staged_customContextMenuRequested(const QPoint &pos)
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	QListWidgetItem *item = ui->listWidget_staged->currentItem();
	if (item) {
	QString path = getFilePath(item);
	QString fullpath = currentWorkingCopyDir() / path;
	if (QFileInfo(fullpath).isFile()) {
	QMenu menu;
	QAction *a_unstage = menu.addAction(tr("Unstage"));
	QAction *a_history = menu.addAction(tr("History"));
	QAction *a_blame = menu.addAction(tr("Blame"));
	QAction *a_properties = addMenuActionProperty(&menu);
	QPoint pt = ui->listWidget_staged->mapToGlobal(pos) + QPoint(8, -8);
	QAction *a = menu.exec(pt);
	if (a) {
	QListWidgetItem *item = ui->listWidget_unstaged->currentItem();
	if (a == a_unstage) {
	g->unstage(path);
	openRepository(false);
	} else if (a == a_history) {
	execFileHistory(item);
	} else if (a == a_blame) {
	blame(item);
	} else if (a == a_properties) {
	execFilePropertyDialog(item);
	}
	}
	}
	}
	}

	QStringList MainWindow::selectedFiles_(QListWidget *listwidget) const
	{
	QStringList list;
	QList<QListWidgetItem *> items = listwidget->selectedItems();
	for (QListWidgetItem *item : items) {
	QString path = getFilePath(item);
	list.push_back(path);
	}
	return list;

	}

	QStringList MainWindow::selectedFiles() const
	{
	if (m->last_focused_file_list == ui->listWidget_files) return selectedFiles_(ui->listWidget_files);
	if (m->last_focused_file_list == ui->listWidget_staged) return selectedFiles_(ui->listWidget_staged);
	if (m->last_focused_file_list == ui->listWidget_unstaged) return selectedFiles_(ui->listWidget_unstaged);
	return QStringList();
	}

	void MainWindow::for_each_selected_files(std::function<void(QString const&)> fn)
	{
	for (QString path : selectedFiles()) {
	fn(path);
	}
	}

	void BasicMainWindow::execFileHistory(QListWidgetItem *item)
	{
	if (item) {
	QString path = getFilePath(item);
	if (!path.isEmpty()) {
	execFileHistory(path);
	}
	}
	}

	void MainWindow::on_action_open_existing_working_copy_triggered()
	{
	QString dir = defaultWorkingDir();
	dir = QFileDialog::getExistingDirectory(this, tr("Add existing working copy"), dir);
	addWorkingCopyDir(dir, false);
	}

	void MainWindow::on_action_view_refresh_triggered()
	{
	openRepository(true);
	}

	void MainWindow::on_tableWidget_log_currentItemChanged(QTableWidgetItem * /current/, QTableWidgetItem * /previous/)
	{
	clearFileList();

	QTableWidgetItem *item = ui->tableWidget_log->item(selectedLogIndex(), 0);
	if (!item) return;

	auto const &logs = getLogs();
	int row = item->data(IndexRole).toInt();
	if (row < (int)logs.size()) {
	updateStatusBarText();
	*ptrUpdateFilesListCounter() = 200;
	}
	}

	void MainWindow::on_toolButton_stage_clicked()
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	g->stage(selectedFiles());
	updateCurrentFilesList();
	}

	void MainWindow::on_toolButton_unstage_clicked()
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	g->unstage(selectedFiles());
	updateCurrentFilesList();
	}

	void MainWindow::on_toolButton_select_all_clicked()
	{
	if (ui->listWidget_unstaged->count() > 0) {
	ui->listWidget_unstaged->setFocus();
	ui->listWidget_unstaged->selectAll();
	} else if (ui->listWidget_staged->count() > 0) {
	ui->listWidget_staged->setFocus();
	ui->listWidget_staged->selectAll();
	}
	}

	void MainWindow::on_toolButton_commit_clicked()
	{
	ui->action_commit->trigger();
	}



	void MainWindow::on_action_edit_global_gitconfig_triggered()
	{
	QString dir = QStandardPaths::writableLocation(QStandardPaths::HomeLocation);
	QString path = dir / ".gitconfig";
	editFile(path, ".gitconfig");
	}

	void MainWindow::on_action_edit_git_config_triggered()
	{
	QString dir = currentWorkingCopyDir();
	QString path = dir / ".git/config";
	editFile(path, ".git/config");
	}

	void MainWindow::on_action_edit_gitignore_triggered()
	{
	QString dir = currentWorkingCopyDir();
	QString path = dir / ".gitignore";
	if (editFile(path, ".gitignore")) {
	updateCurrentFilesList();
	}
	}

	int MainWindow::selectedLogIndex() const
	{
	auto const &logs = getLogs();
	int i = ui->tableWidget_log->currentRow();
	if (i >= 0 && i < (int)logs.size()) {
	return i;
	}
	return -1;
	}

	void MainWindow::updateDiffView(QListWidgetItem *item)
	{
	clearDiffView();

	m->last_selected_file_item = item;

	if (!item) return;

	int idiff = indexOfDiff(item);
	if (idiff >= 0 && idiff < diffResult()->size()) {
	Git::Diff const &diff = diffResult()->at(idiff);
	QString key = GitDiff::makeKey(diff);
	auto it = getDiffCacheMap()->find(key);
	if (it != getDiffCacheMap()->end()) {
	auto const &logs = getLogs();
	int row = ui->tableWidget_log->currentRow();
	bool uncommited = (row >= 0 && row < (int)logs.size() && Git::isUncommited(logs[row]));
	ui->widget_diff_view->updateDiffView(it->second, uncommited);
	}
	}
	}

	void MainWindow::updateDiffView()
	{
	updateDiffView(m->last_selected_file_item);
	}

	void MainWindow::updateUnstagedFileCurrentItem()
	{
	updateDiffView(ui->listWidget_unstaged->currentItem());
	}

	void MainWindow::updateStagedFileCurrentItem()
	{
	updateDiffView(ui->listWidget_staged->currentItem());
	}

	void MainWindow::on_listWidget_unstaged_currentRowChanged(int /currentRow/)
	{
	updateUnstagedFileCurrentItem();
	}

	void MainWindow::on_listWidget_staged_currentRowChanged(int /currentRow/)
	{
	updateStagedFileCurrentItem();
	}

	void MainWindow::on_listWidget_files_currentRowChanged(int /currentRow/)
	{
	updateDiffView(ui->listWidget_files->currentItem());
	}

	void MainWindow::setWatchRemoteInterval(int mins)
	{
	if (mins > 0) {
	m->remote_watcher_timer.start(mins * 60000);
	} else {
	m->remote_watcher_timer.stop();
	}
	}

	void MainWindow::setRemoteMonitoringEnabled(bool enable)
	{
	if (enable) {
	setWatchRemoteInterval(appsettings()->watch_remote_changes_every_mins);
	} else {
	setWatchRemoteInterval(0);
	}
	}

	void MainWindow::dragEnterEvent(QDragEnterEvent *event)
	{
	if (QApplication::modalWindow()) return;

	if (event->mimeData()->hasUrls()) {
	event->acceptProposedAction();
	event->accept();
	}
	}

	void MainWindow::timerEvent(QTimerEvent *)
	{
	bool running = getPtyProcess()->isRunning();
	if (ui->toolButton_stop_process->isEnabled() != running) {
	ui->toolButton_stop_process->setEnabled(running);
	ui->action_stop_process->setEnabled(running);
	setNetworkingCommandsEnabled(!running);
	}
	if (!running) {
	setInteractionMode(InteractionMode::None);
	}

	while (1) {
	char tmp[1024];
	int len = getPtyProcess()->readOutput(tmp, sizeof(tmp));
	if (len < 1) break;
	writeLog(tmp, len);
	}
	}

	void MainWindow::keyPressEvent(QKeyEvent *event)
	{
	if (QApplication::focusWidget() == ui->widget_log) {
	int c = event->key();

	auto write_char = [&](char c){
	if (getPtyProcess()->isRunning()) {
	getPtyProcess()->writeInput(&c, 1);
	}
	};

	auto write_text = [&](QString const &str){
	std::string s = str.toStdString();
	for (char i : s) {
	write_char(i);
	}
	};

	if (c == Qt::Key_Return \|\| c == Qt::Key_Enter) {
	write_char('\n');
	} else {
	QString text = event->text();
	write_text(text);
	}
	}
	}

	void MainWindow::on_action_edit_settings_triggered()
	{
	SettingsDialog dlg(this);
	if (dlg.exec() == QDialog::Accepted) {
	ApplicationSettings const &newsettings = dlg.settings();
	setAppSettings(newsettings);
	setGitCommand(appsettings()->git_command, false);
	setFileCommand(appsettings()->file_command, false);
	setGpgCommand(appsettings()->gpg_command, false);
	setRemoteMonitoringEnabled(true);
	}
	}

	void MainWindow::onCloneCompleted(bool success, QVariant const &userdata)
	{
	if (success) {
	RepositoryItem r = userdata.value<RepositoryItem>();
	saveRepositoryBookmark(r);
	setCurrentRepository(r, false);
	openRepository(true);
	}
	}

	void MainWindow::onPtyProcessCompleted(bool /ok/, QVariant const &userdata)
	{
	switch (getPtyCondition()) {
	case PtyCondition::Clone:
	onCloneCompleted(getPtyProcessOk(), userdata);
	break;
	}
	setPtyCondition(PtyCondition::None);
	}

	void MainWindow::on_action_clone_triggered()
	{
	clone();
	}

	void MainWindow::on_action_about_triggered()
	{
	AboutDialog dlg(this);
	dlg.exec();
	}

	void MainWindow::on_toolButton_clone_clicked()
	{
	ui->action_clone->trigger();
	}

	void MainWindow::on_toolButton_fetch_clicked()
	{
	ui->action_fetch->trigger();
	}

	void MainWindow::clearRepoFilter()
	{
	ui->lineEdit_filter->clear();
	}

	void MainWindow::appendCharToRepoFilter(ushort c)
	{
	if (QChar(c).isLetter()) {
	c = QChar(c).toLower().unicode();
	}
	ui->lineEdit_filter->setText(getRepositoryFilterText() + c);
	}

	void MainWindow::backspaceRepoFilter()
	{
	QString s = getRepositoryFilterText();
	int n = s.size();
	if (n > 0) {
	s = s.mid(0, n - 1);
	}
	ui->lineEdit_filter->setText(s);
	}

	void MainWindow::on_lineEdit_filter_textChanged(QString const &text)
	{
	setRepositoryFilterText(text);
	updateRepositoriesList();
	}

	void MainWindow::on_toolButton_erase_filter_clicked()
	{
	clearRepoFilter();
	ui->lineEdit_filter->setFocus();
	}

	void MainWindow::deleteTags(QStringList const &tagnames)
	{
	int row = ui->tableWidget_log->currentRow();

	internalDeleteTags(tagnames);

	ui->tableWidget_log->selectRow(row);
	}

	void MainWindow::revertCommit()
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	Git::CommitItem const *commit = selectedCommitItem();
	if (commit) {
	g->revert(commit->commit_id);
	openRepository(false);
	}
	}

	bool MainWindow::addTag(QString const &name)
	{
	int row = ui->tableWidget_log->currentRow();

	bool ok = internalAddTag(name);

	ui->tableWidget_log->selectRow(row);
	return ok;
	}

	void MainWindow::on_action_push_all_tags_triggered()
	{
	reopenRepository(false, [&](GitPtr g){
	g->push(true);
	});
	}

	void MainWindow::on_tableWidget_log_itemDoubleClicked(QTableWidgetItem *)
	{
	Git::CommitItem const *commit = selectedCommitItem();
	if (commit) {
	execCommitPropertyDialog(this, commit);
	}
	}

	void MainWindow::on_listWidget_unstaged_itemDoubleClicked(QListWidgetItem * item)
	{
	execFilePropertyDialog(item);
	}

	void MainWindow::on_listWidget_staged_itemDoubleClicked(QListWidgetItem *item)
	{
	execFilePropertyDialog(item);
	}

	void MainWindow::on_listWidget_files_itemDoubleClicked(QListWidgetItem *item)
	{
	execFilePropertyDialog(item);
	}

	QListWidgetItem *MainWindow::currentFileItem() const
	{
	QListWidget *listwidget = nullptr;
	if (ui->stackedWidget->currentWidget() == ui->page_uncommited) {
	QWidget *w = qApp->focusWidget();
	if (w == ui->listWidget_unstaged) {
	listwidget = ui->listWidget_unstaged;
	} else if (w == ui->listWidget_staged) {
	listwidget = ui->listWidget_staged;
	}
	} else {
	listwidget = ui->listWidget_files;
	}
	if (listwidget) {
	return listwidget->currentItem();
	}
	return nullptr;
	}

	void MainWindow::on_action_set_config_user_triggered()
	{
	Git::User global_user;
	Git::User repo_user;
	GitPtr g = git();
	if (isValidWorkingCopy(g)) {
	repo_user = g->getUser(Git::Source::Local);
	}
	global_user = g->getUser(Git::Source::Global);

	execSetUserDialog(global_user, repo_user, currentRepositoryName());
	}

	void MainWindow::on_action_window_log_triggered(bool checked)
	{
	ui->dockWidget_log->setVisible(checked);
	}

	void MainWindow::on_action_repo_jump_triggered()
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	NamedCommitList items = namedCommitItems(Branches \| Tags \| Remotes);
	{
	NamedCommitItem head;
	head.name = "HEAD";
	head.id = getHeadId();
	items.push_front(head);
	}
	JumpDialog dlg(this, items);
	if (dlg.exec() == QDialog::Accepted) {
	JumpDialog::Action action = dlg.action();
	if (action == JumpDialog::Action::BranchsAndTags) {
	QString name = dlg.text();
	QString id = g->rev_parse(name);
	if (g->objectType(id) == "tag") {
	id = getObjCache()->getCommitIdFromTag(id);
	}
	int row = rowFromCommitId(id);
	if (row < 0) {
	QMessageBox::warning(this, tr("Jump"), QString("%1\n(%2)\n\n").arg(name).arg(id) + tr("That commmit has not foud or not read yet"));
	} else {
	setCurrentLogRow(row);

	if (dlg.isCheckoutChecked()) {
	NamedCommitItem item;
	for (NamedCommitItem const &t : items) {
	if (t.name == name) {
	item = t;
	break;
	}
	}
	bool ok = false;
	if (item.type == NamedCommitItem::Type::Branch) {
	ok = g->git(QString("checkout \"%1\"").arg(name), true);
	} else if (item.type == NamedCommitItem::Type::Tag) {
	ok = g->git(QString("checkout -b \"%1\" \"%2\"").arg(name).arg(id), true);
	}
	if (ok) {
	openRepository(true);
	}
	}
	}
	} else if (action == JumpDialog::Action::CommitId) {
	QString id = dlg.text();
	jumpToCommit(id);
	}
	}
	}

	void MainWindow::mergeBranch(Git::CommitItem const *commit)
	{
	if (!commit) return;

	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	g->mergeBranch(commit->commit_id);
	openRepository(true);
	}

	void MainWindow::rebaseBranch(Git::CommitItem const *commit)
	{
	if (!commit) return;

	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	QString text = tr("Are you sure you want to rebase the commit ?");
	text += "\n\n";
	text += "> git rebase " + commit->commit_id;
	int r = QMessageBox::information(this, tr("Rebase"), text, QMessageBox::Ok, QMessageBox::Cancel);
	if (r == QMessageBox::Ok) {
	g->rebaseBranch(commit->commit_id);
	openRepository(true);
	}
	}

	void MainWindow::cherrypick(Git::CommitItem const *commit)
	{
	if (!commit) return;

	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	g->cherrypick(commit->commit_id);
	openRepository(true);
	}

	void MainWindow::on_action_repo_checkout_triggered()
	{
	checkout();
	}

	void MainWindow::on_action_delete_branch_triggered()
	{
	deleteBranch();
	}

	void MainWindow::on_toolButton_terminal_clicked()
	{
	openTerminal(nullptr);
	}

	void MainWindow::on_toolButton_explorer_clicked()
	{
	openExplorer(nullptr);
	}

	void MainWindow::on_action_reset_HEAD_1_triggered()
	{
	GitPtr g = git();
	if (!isValidWorkingCopy(g)) return;

	g->reset_head1();
	openRepository(false);
	}

	void MainWindow::on_action_create_a_repository_triggered()
	{
	createRepository(QString());
	}

	bool MainWindow::isRemoteOnline() const
	{
	return ui->radioButton_remote_online->isChecked();
	}

	void MainWindow::setNetworkingCommandsEnabled(bool f)
	{
	ui->action_clone->setEnabled(f);

	ui->toolButton_clone->setEnabled(f);

	if (!Git::isValidWorkingCopy(currentWorkingCopyDir())) {
	f = false;
	}

	ui->action_fetch->setEnabled(f);
	ui->action_fetch_prune->setEnabled(f);
	ui->action_pull->setEnabled(f);
	ui->action_push->setEnabled(f);
	ui->action_push_u->setEnabled(f);
	ui->action_push_all_tags->setEnabled(f);

	ui->toolButton_fetch->setEnabled(f);
	ui->toolButton_pull->setEnabled(f);
	ui->toolButton_push->setEnabled(f);
	}

	void MainWindow::setRemoteOnline(bool f)
	{
	QRadioButton *rb = nullptr;
	rb = f ? ui->radioButton_remote_online : ui->radioButton_remote_offline;
	rb->blockSignals(true);
	rb->click();
	rb->blockSignals(false);

	setNetworkingCommandsEnabled(f);

	MySettings s;
	s.beginGroup("Remote");
	s.setValue("Online", f);
	s.endGroup();
	}

	void MainWindow::on_radioButton_remote_online_clicked()
	{
	setRemoteOnline(true);
	}

	void MainWindow::on_radioButton_remote_offline_clicked()
	{
	setRemoteOnline(false);
	}

	void MainWindow::on_verticalScrollBar_log_valueChanged(int)
	{
	ui->widget_log->refrectScrollBar();
	}

	void MainWindow::on_horizontalScrollBar_log_valueChanged(int)
	{
	ui->widget_log->refrectScrollBar();
	}

	void MainWindow::on_toolButton_stop_process_clicked()
	{
	abortPtyProcess();
	}

	void MainWindow::on_action_stop_process_triggered()
	{
	abortPtyProcess();
	}

	void MainWindow::on_action_exit_triggered()
	{
	close();
	}

	void MainWindow::on_action_reflog_triggered()
	{
	GitPtr g = git();
	Git::ReflogItemList reflog;
	g->reflog(&reflog);

	ReflogWindow dlg(this, this, reflog);
	dlg.exec();
	}

	void MainWindow::blame(QListWidgetItem *item)
	{
	QList<BlameItem> list;
	QString path = getFilePath(item);
	{
	GitPtr g = git();
	QByteArray ba = g->blame(path);
	if (!ba.isEmpty()) {
	char const *begin = ba.data();
	char const *end = begin + ba.size();
	list = BlameWindow::parseBlame(begin, end);
	}
	}
	if (!list.isEmpty()) {
	qApp->setOverrideCursor(Qt::WaitCursor);
	BlameWindow win(this, path, list);
	qApp->restoreOverrideCursor();
	win.exec();
	}
	}

	void MainWindow::blame()
	{
	blame(currentFileItem());
	}

	void MainWindow::on_action_repository_property_triggered()
	{
	execRepositoryPropertyDialog(currentWorkingCopyDir());
	}

	void MainWindow::on_action_set_gpg_signing_triggered()
	{
	GitPtr g = git();
	QString global_key_id = g->signingKey(Git::Source::Global);
	QString repository_key_id;
	if (g->isValidWorkingCopy()) {
	repository_key_id = g->signingKey(Git::Source::Local);
	}
	SetGpgSigningDialog dlg(this, currentRepositoryName(), global_key_id, repository_key_id);
	if (dlg.exec() == QDialog::Accepted) {
	g->setSigningKey(dlg.id(), dlg.isGlobalChecked());
	}
	}

	void MainWindow::execAreYouSureYouWantToContinueConnectingDialog()
	{
	using TheDlg = AreYouSureYouWantToContinueConnectingDialog;

	setInteractionMode(InteractionMode::Busy);

	QApplication::restoreOverrideCursor();

	TheDlg dlg(this);
	if (dlg.exec() == QDialog::Accepted) {
	TheDlg::Result r = dlg.result();
	if (r == TheDlg::Result::Yes) {
	getPtyProcess()->writeInput("yes\n", 4);
	} else {
	setPtyProcessOk(false); // abort
	getPtyProcess()->writeInput("no\n", 3);
	QThread::msleep(300);
	stopPtyProcess();
	}
	} else {
	ui->widget_log->setFocus();
	setInteractionCanceled(true);
	}
	setInteractionMode(InteractionMode::Busy);
	}

	void MainWindow::onLogIdle()
	{
	if (interactionCanceled()) return;
	if (interactionMode() != InteractionMode::None) return;

	static char const are_you_sure_you_want_to_continue_connecting[] = "Are you sure you want to continue connecting (yes/no)?";
	static char const enter_passphrase[] = "Enter passphrase: ";
	static char const enter_passphrase_for_key[] = "Enter passphrase for key '";
	static char const fatal_authentication_failed_for[] = "fatal: Authentication failed for '";

	std::vector<char> vec;
	ui->widget_log->retrieveLastText(&vec, 100);
	if (!vec.empty()) {
	std::string line;
	int n = (int)vec.size();
	int i = n;
	while (i > 0) {
	i--;
	if (i + 1 < n && vec[i] == '\n') {
	i++;
	line.assign(&vec[i], n - i);
	break;
	}
	}
	if (!line.empty()) {
	auto ExecLineEditDialog = [&](QWidget *parent, QString const &title, QString const &prompt, QString const &val, bool password){
	LineEditDialog dlg(parent, title, prompt, val, password);
	if (dlg.exec() == QDialog::Accepted) {
	std::string ret = dlg.text().toStdString();
	std::string str = ret + '\n';
	getPtyProcess()->writeInput(str.c_str(), str.size());
	return ret;
	}
	abortPtyProcess();
	return std::string();
	};

	auto Match = [&](char const *str){
	int n = strlen(str);
	if (strncmp(line.c_str(), str, n) == 0) {
	char const *p = line.c_str() + n;
	while (1) {
	if (!*p) return true;
	if (!isspace((unsigned char)*p)) break;
	p++;
	}
	}
	return false;
	};

	auto StartsWith = [&](char const *str){
	char const *p = line.c_str();
	while (*str) {
	if (p != str) return false;
	str++;
	p++;
	}
	return true;
	};

	if (Match(are_you_sure_you_want_to_continue_connecting)) {
	execAreYouSureYouWantToContinueConnectingDialog();
	return;
	}

	if (line == enter_passphrase) {
	ExecLineEditDialog(this, "Passphrase", QString::fromStdString(line), QString(), true);
	return;
	}

	if (StartsWith(enter_passphrase_for_key)) {
	std::string keyfile;
	{
	int i = strlen(enter_passphrase_for_key);
	char const *p = line.c_str() + i;
	char const *q = strrchr(p, ':');
	if (q && p + 2 < q && q[-1] == '\'') {
	keyfile.assign(p, q - 1);
	}
	}
	if (!keyfile.empty()) {
	if (keyfile == sshPassphraseUser() && !sshPassphrasePass().empty()) {
	std::string text = sshPassphrasePass() + '\n';
	getPtyProcess()->writeInput(text.c_str(), text.size());
	} else {
	std::string secret = ExecLineEditDialog(this, "Passphrase for key", QString::fromStdString(line), QString(), true);
	sshSetPassphrase(keyfile, secret);
	}
	return;
	}
	}

	char const *begin = line.c_str();
	char const *end = line.c_str() + line.size();
	auto Input = [&](QString const &title, bool password, std::string *value){
	Q_ASSERT(value);
	std::string header = QString("%1 for '").arg(title).toStdString();
	if (strncmp(begin, header.c_str(), header.size()) == 0) {
	QString msg;
	if (memcmp(end - 2, "':", 2) == 0) {
	msg = QString::fromUtf8(begin, end - begin - 1);
	} else if (memcmp(end - 3, "': ", 3) == 0) {
	msg = QString::fromUtf8(begin, end - begin - 2);
	}
	if (!msg.isEmpty()) {
	std::string s = ExecLineEditDialog(this, title, msg, value ? QString::fromStdString(*value) : QString(), password);
	*value = s;
	return true;
	}
	}
	return false;
	};
	std::string uid = httpAuthenticationUser();
	std::string pwd = httpAuthenticationPass();
	bool ok = false;
	if (Input("Username", false, &uid)) ok = true;
	if (Input("Password", true, &pwd)) ok = true;
	if (ok) {
	httpSetAuthentication(uid, pwd);
	return;
	}

	if (StartsWith(fatal_authentication_failed_for)) {
	QMessageBox::critical(this, tr("Authentication Failed"), QString::fromStdString(line));
	abortPtyProcess();
	return;
	}
	}
	}
	}

	void MainWindow::on_action_edit_tags_triggered()
	{
	Git::CommitItem const *commit = selectedCommitItem();
	if (commit && Git::isValidID(commit->commit_id)) {
	EditTagsDialog dlg(this, commit);
	dlg.exec();
	}
	}

	void MainWindow::on_action_push_u_triggered()
	{
	pushSetUpstream(false);
	}

	void MainWindow::on_action_delete_remote_branch_triggered()
	{
	deleteRemoteBranch(selectedCommitItem());
	}

	void MainWindow::on_action_terminal_triggered()
	{
	auto const *repo = &currentRepository();
	openTerminal(repo);
	}

	void MainWindow::on_action_explorer_triggered()
	{
	auto const *repo = &currentRepository();
	openExplorer(repo);
	}

	void MainWindow::on_action_reset_hard_triggered()
	{
	doGitCommand([&](GitPtr g){
	g->reset_hard();
	});
	}

	void MainWindow::on_action_clean_df_triggered()
	{
	doGitCommand([&](GitPtr g){
	g->clean_df();
	});
	}

	void MainWindow::postOpenRepositoryFromGitHub(QString const &username, QString const &reponame)
	{
	QVariantList list;
	list.push_back(username);
	list.push_back(reponame);
	postUserFunctionEvent([&](QVariant const &v){
	QVariantList l = v.toList();
	QString uname = l[0].toString();
	QString rname = l[1].toString();
	CloneFromGitHubDialog dlg(this, uname, rname);
	if (dlg.exec() == QDialog::Accepted) {
	clone(dlg.url());
	}
	}, QVariant(list));
	}

	void MainWindow::on_action_stash_triggered()
	{
	doGitCommand([&](GitPtr g){
	g->stash();
	});
	}

	void MainWindow::on_action_stash_apply_triggered()
	{
	doGitCommand([&](GitPtr g){
	g->stash_apply();
	});
	}

	void MainWindow::on_action_stash_drop_triggered()
	{
	doGitCommand([&](GitPtr g){
	g->stash_drop();
	});
	}

	void MainWindow::on_action_test_triggered()
	{
	}



	diff --git a/src/SearchFromGitHubDialog.cpp b/src/SearchFromGitHubDialog.cpp
	index db7cab3..a5f74cf 100644
	--- a/src/SearchFromGitHubDialog.cpp
	+++ b/src/SearchFromGitHubDialog.cpp
	@@ -1,169 +1,169 @@
	#include "SearchFromGitHubDialog.h"
	#include "ui_SearchFromGitHubDialog.h"

	#include "common/misc.h"
	#include "urlencode.h"
	#include "BasicMainWindow.h"

	#include <QDebug>
	#include <QThread>
	#include <QDesktopServices>
	#include <QUrl>
	#include <functional>

	using SearchResultItem = GitHubAPI::SearchResultItem;

	static QString toQString(std::string const &s)
	{
	return QString::fromUtf8(s.c_str(), s.size());
	}

	SearchFromGitHubDialog::SearchFromGitHubDialog(QWidget parent, BasicMainWindow mw)
	: QDialog(parent)
	, ui(new Ui::SearchFromGitHubDialog)
	, mainwindow(mw)
	{
	ui->setupUi(this);
	Qt::WindowFlags flags = windowFlags();
	flags &= ~Qt::WindowContextHelpButtonHint;
	setWindowFlags(flags);

	ui->tableWidget->setItemDelegate(&item_delegate);

	connect(ui->label_hyperlink, &HyperLinkLabel::clicked, this, &SearchFromGitHubDialog::onHyperlinkClicked);

	ui->pushButton_ok->setEnabled(false);
	}

	SearchFromGitHubDialog::~SearchFromGitHubDialog()
	{
	delete ui;
	}

	QString SearchFromGitHubDialog::url() const
	{
	return url_;
	}

	void SearchFromGitHubDialog::on_pushButton_search_clicked()
	{
	std::string q = ui->lineEdit_keywords->text().trimmed().toStdString();
	q = url_encode(q);
	if (q.empty()) return;

	- GitHubAPI github(mainwindow->webContext());
	+ GitHubAPI github(mainwindow->webContext(), mainwindow);
	items = github.searchRepository(q);

	QStringList cols = {
	tr("Name"),
	tr("Owner"),
	tr("Score"),
	tr("Description"),
	};

	ui->tableWidget->setColumnCount(cols.size());
	ui->tableWidget->setRowCount(items.size());

	for (int col = 0; col < cols.size(); col++) {
	QTableWidgetItem *p = new QTableWidgetItem();
	p->setText(cols[col]);
	ui->tableWidget->setHorizontalHeaderItem(col, p);
	}

	for (int row = 0; row < items.size(); row++) {
	SearchResultItem const &item = items[row];
	QTableWidgetItem *p;

	QString name = QString::fromStdString(item.full_name);
	QString owner;
	int i = name.indexOf('/');
	if (i > 0) {
	owner = name.mid(0, i);
	name = name.mid(i + 1);
	}

	int col = 0;
	auto AddItem = [&](std::function<void(QTableWidgetItem *)> callback){
	p = new QTableWidgetItem();
	callback(p);
	ui->tableWidget->setItem(row, col, p);
	col++;
	};

	AddItem([&](QTableWidgetItem *p){
	p->setData(Qt::UserRole, (int)row);
	p->setText(name);
	});
	AddItem([&](QTableWidgetItem *p){
	p->setText(owner);
	});
	AddItem([&](QTableWidgetItem *p){
	char tmp[100];
	sprintf(tmp, "%.2f", item.score);
	p->setText(tmp);
	p->setTextAlignment(Qt::AlignRight \| Qt::AlignVCenter);
	});
	AddItem([&](QTableWidgetItem *p){
	p->setText(toQString(item.description));
	});

	ui->tableWidget->setRowHeight(row, 24);
	}
	ui->tableWidget->resizeColumnsToContents();
	ui->tableWidget->horizontalHeader()->setStretchLastSection(true);
	}

	void SearchFromGitHubDialog::updateUI()
	{
	auto Check = [&](){
	if (ui->radioButton_ssh->isChecked()) {
	url_ = ui->lineEdit_ssh->text();
	if (!url_.isEmpty()) {
	return true;
	}
	}
	if (ui->radioButton_http->isChecked()) {
	url_ = ui->lineEdit_http->text();
	if (!url_.isEmpty()) {
	return true;
	}
	}
	url_ = QString();
	return false;
	};
	ui->pushButton_ok->setEnabled(Check());
	}

	void SearchFromGitHubDialog::on_tableWidget_currentItemChanged(QTableWidgetItem * /current/, QTableWidgetItem * /previous/)
	{
	int row = ui->tableWidget->currentRow();
	QTableWidgetItem *p = ui->tableWidget->item(row, 0);
	if (p) {
	int i = p->data(Qt::UserRole).toInt();
	if (i < items.size()) {
	SearchResultItem const &item = items[i];
	ui->lineEdit_ssh->setText(toQString(item.ssh_url));
	ui->lineEdit_http->setText(toQString(item.clone_url));
	ui->label_hyperlink->setText(toQString(item.html_url));
	}
	}
	updateUI();
	}

	void SearchFromGitHubDialog::on_radioButton_ssh_clicked()
	{
	updateUI();
	}

	void SearchFromGitHubDialog::on_radioButton_http_clicked()
	{
	updateUI();
	}

	void SearchFromGitHubDialog::onHyperlinkClicked()
	{
	QString url = ui->label_hyperlink->text();
	QDesktopServices::openUrl(QUrl(url));
	}


	diff --git a/src/SetUserDialog.cpp b/src/SetUserDialog.cpp
	index e842daa..63fec97a 100644
	--- a/src/SetUserDialog.cpp
	+++ b/src/SetUserDialog.cpp
	@@ -1,130 +1,130 @@
	#include "AvatarLoader.h"
	#include "BasicMainWindow.h"
	#include "SetUserDialog.h"
	#include "ui_SetUserDialog.h"
	#include "common/misc.h"

	struct SetUserDialog::Private {
	Git::User global_user;
	Git::User repo_user;
	AvatarLoader avatar_loader;
	};

	SetUserDialog::SetUserDialog(BasicMainWindow *parent, Git::User const &global_user, Git::User const &repo_user, QString const &repo)
	: QDialog(parent)
	, ui(new Ui::SetUserDialog)
	, m(new Private)
	{
	ui->setupUi(this);
	Qt::WindowFlags flags = windowFlags();
	flags &= ~Qt::WindowContextHelpButtonHint;
	setWindowFlags(flags);

	misc::setFixedSize(this);

	m->global_user = global_user;
	m->repo_user = repo_user;

	if (repo.isEmpty()) {
	ui->radioButton_repository->setEnabled(false);
	} else {
	QString text = tr("Repository");
	text += " : ";
	text += repo;
	ui->radioButton_repository->setText(text);
	}
	ui->radioButton_global->click();
	ui->lineEdit_name->setFocus();

	- m->avatar_loader.start(mainwindow()->webContext());
	+ m->avatar_loader.start(mainwindow());
	connect(&m->avatar_loader, &AvatarLoader::updated, [&](){
	QString email = ui->lineEdit_mail->text();
	QIcon icon = m->avatar_loader.fetch(email.toStdString(), false);
	setAvatar(icon);
	});
	}

	SetUserDialog::~SetUserDialog()
	{
	m->avatar_loader.stop();
	delete m;
	delete ui;
	}

	BasicMainWindow *SetUserDialog::mainwindow()
	{
	return qobject_cast<BasicMainWindow *>(parent());
	}

	bool SetUserDialog::isGlobalChecked() const
	{
	return ui->radioButton_global->isChecked();
	}

	bool SetUserDialog::isRepositoryChecked() const
	{
	return ui->radioButton_repository->isChecked();
	}

	Git::User SetUserDialog::user() const
	{
	Git::User user;
	user.name = ui->lineEdit_name->text();
	user.email = ui->lineEdit_mail->text();
	return user;
	}

	void SetUserDialog::setAvatar(QIcon icon)
	{
	QPixmap pm = icon.pixmap(QSize(64, 64));
	ui->label_avatar->setPixmap(pm);
	}

	void SetUserDialog::on_radioButton_global_toggled(bool checked)
	{
	if (checked) {
	ui->lineEdit_name->setText(m->global_user.name);
	ui->lineEdit_mail->setText(m->global_user.email);
	}
	}

	void SetUserDialog::on_radioButton_repository_toggled(bool checked)
	{
	if (checked) {
	ui->lineEdit_name->setText(m->repo_user.name);
	ui->lineEdit_mail->setText(m->repo_user.email);
	}
	}

	void SetUserDialog::on_lineEdit_name_textChanged(QString const &text)
	{
	if (isGlobalChecked()) {
	m->global_user.name = text;
	}
	if (isRepositoryChecked()) {
	m->repo_user.name = text;
	}
	}

	void SetUserDialog::on_lineEdit_mail_textChanged(QString const &text)
	{
	if (isGlobalChecked()) {
	m->global_user.email = text;
	}
	if (isRepositoryChecked()) {
	m->repo_user.email = text;
	}
	}

	void SetUserDialog::on_pushButton_get_icon_clicked()
	{
	ui->label_avatar->setPixmap(QPixmap());
	QString email = ui->lineEdit_mail->text();
	if (email.indexOf('@') > 0) {
	QIcon icon = m->avatar_loader.fetch(email.toStdString(), true);
	if (!icon.isNull()) {
	setAvatar(icon);
	}
	}
	}

	diff --git a/src/WelcomeWizardDialog.cpp b/src/WelcomeWizardDialog.cpp
	index 2af1a85..3597dc3 100644
	--- a/src/WelcomeWizardDialog.cpp
	+++ b/src/WelcomeWizardDialog.cpp
	@@ -1,190 +1,190 @@
	#include "WelcomeWizardDialog.h"
	#include "ui_WelcomeWizardDialog.h"
	#include <QFileDialog>
	#include "MainWindow.h"
	#include "common/misc.h"
	#include "Git.h"

	WelcomeWizardDialog::WelcomeWizardDialog(BasicMainWindow *parent)
	: QDialog(parent)
	, ui(new Ui::WelcomeWizardDialog)
	{
	ui->setupUi(this);
	Qt::WindowFlags flags = windowFlags();
	flags &= ~Qt::WindowContextHelpButtonHint;
	setWindowFlags(flags);

	mainwindow_ = parent;

	pages_.push_back(ui->page_helper_tools);
	pages_.push_back(ui->page_global_user_information);
	pages_.push_back(ui->page_default_working_folder);
	pages_.push_back(ui->page_finish);
	ui->stackedWidget->setCurrentWidget(pages_[0]);
	on_stackedWidget_currentChanged(0);

	- avatar_loader_.start(mainwindow_->webContext());
	+ avatar_loader_.start(mainwindow_);
	connect(&avatar_loader_, &AvatarLoader::updated, [&](){
	QString email = ui->lineEdit_user_email->text();
	QIcon icon = avatar_loader_.fetch(email.toStdString(), false);
	setAvatar(icon);
	});

	ui->lineEdit_user_name->setFocus();
	}

	WelcomeWizardDialog::~WelcomeWizardDialog()
	{
	avatar_loader_.stop();
	delete ui;
	}

	void WelcomeWizardDialog::set_user_name(QString const &v)
	{
	ui->lineEdit_user_name->setText(v);
	}

	void WelcomeWizardDialog::set_user_email(QString const &v)
	{
	ui->lineEdit_user_email->setText(v);
	}

	void WelcomeWizardDialog::set_default_working_folder(QString const &v)
	{
	ui->lineEdit_default_working_folder->setText(v);

	}

	void WelcomeWizardDialog::set_git_command_path(QString const &v)
	{
	ui->lineEdit_git->setText(v);
	}

	void WelcomeWizardDialog::set_file_command_path(QString const &v)
	{
	ui->lineEdit_file->setText(v);
	}

	QString WelcomeWizardDialog::user_name() const
	{
	return ui->lineEdit_user_name->text();
	}

	QString WelcomeWizardDialog::user_email() const
	{
	return ui->lineEdit_user_email->text();
	}

	QString WelcomeWizardDialog::default_working_folder() const
	{
	return ui->lineEdit_default_working_folder->text();
	}

	QString WelcomeWizardDialog::git_command_path() const
	{
	return ui->lineEdit_git->text();
	}

	QString WelcomeWizardDialog::file_command_path() const
	{
	return ui->lineEdit_file->text();
	}

	void WelcomeWizardDialog::on_pushButton_prev_clicked()
	{
	int i = pages_.indexOf(ui->stackedWidget->currentWidget());
	if (i == 0) {
	done(QDialog::Rejected);
	return;
	}
	if (i > 0) {
	i--;
	QWidget *w = pages_[i];
	ui->stackedWidget->setCurrentWidget(w);
	}
	}

	void WelcomeWizardDialog::on_pushButton_next_clicked()
	{
	if (ui->stackedWidget->currentWidget() == ui->page_finish) {
	done(QDialog::Accepted);
	}
	int i = pages_.indexOf(ui->stackedWidget->currentWidget());
	if (i + 1 < pages_.size()) {
	i++;
	QWidget *w = pages_[i];
	ui->stackedWidget->setCurrentWidget(w);
	}
	}

	void WelcomeWizardDialog::on_stackedWidget_currentChanged(int /arg1/)
	{
	QString prev_text;
	QString next_text;
	QWidget *w = ui->stackedWidget->currentWidget();
	if (w == ui->page_helper_tools) {
	prev_text = tr("Cancel");
	ui->lineEdit_git->setFocus();
	} else if (w == ui->page_global_user_information) {
	if (user_name().isEmpty() && user_email().isEmpty()) {
	Git::Context gcx;
	gcx.git_command = git_command_path();
	Git g(gcx, QString());
	Git::User user = g.getUser(Git::Source::Global);
	set_user_name(user.name);
	set_user_email(user.email);
	}
	} else if (w == ui->page_default_working_folder) {
	ui->lineEdit_default_working_folder->setFocus();
	} else if (w == ui->page_finish) {
	ui->lineEdit_preview_user->setText(ui->lineEdit_user_name->text());
	ui->lineEdit_preview_email->setText(ui->lineEdit_user_email->text());
	ui->lineEdit_preview_folder->setText(ui->lineEdit_default_working_folder->text());
	ui->lineEdit_preview_git->setText(ui->lineEdit_git->text());
	ui->lineEdit_preview_file->setText(ui->lineEdit_file->text());
	next_text = tr("Finish");
	}
	ui->pushButton_prev->setText(prev_text.isEmpty() ? tr("<< Prev") : prev_text);
	ui->pushButton_next->setText(next_text.isEmpty() ? tr("Next >>") : next_text);
	ui->pushButton_next->setDefault(true);
	}

	void WelcomeWizardDialog::on_pushButton_browse_default_workiing_folder_clicked()
	{
	QString s = ui->lineEdit_default_working_folder->text();
	s = QFileDialog::getExistingDirectory(this, tr("Default Working Folder"), s);
	s = misc::normalizePathSeparator(s);
	ui->lineEdit_default_working_folder->setText(s);
	}


	void WelcomeWizardDialog::on_pushButton_browse_git_clicked()
	{
	QString s = mainwindow_->selectGitCommand(false);
	ui->lineEdit_git->setText(s);
	}

	void WelcomeWizardDialog::on_pushButton_browse_file_clicked()
	{
	QString s = mainwindow_->selectFileCommand(false);
	ui->lineEdit_file->setText(s);
	}

	void WelcomeWizardDialog::setAvatar(QIcon const &icon)
	{
	QPixmap pm = icon.pixmap(QSize(64, 64));
	ui->label_avatar->setPixmap(pm);
	}

	void WelcomeWizardDialog::on_pushButton_get_icon_clicked()
	{
	ui->label_avatar->setPixmap(QPixmap());
	QString email = ui->lineEdit_user_email->text();
	if (email.indexOf('@') > 0) {
	QIcon icon = avatar_loader_.fetch(email.toStdString(), true);
	if (!icon.isNull()) {
	setAvatar(icon);
	}
	}
	}

	diff --git a/src/webclient.cpp b/src/webclient.cpp
	index 4596dd3..92b224a 100644
	--- a/src/webclient.cpp
	+++ b/src/webclient.cpp
	@@ -1,1082 +1,1083 @@

	#include "webclient.h"
	#include <cstring>

	#ifdef _WIN32
	#include <winsock2.h>
	#include <windows.h>
	#pragma comment(lib, "ws2_32.lib")
	#if USE_OPENSSL
	#pragma comment(lib, "libeay32.lib")
	#pragma comment(lib, "ssleay32.lib")
	#endif
	typedef SOCKET socket_t;
	#pragma warning(disable:4996)
	#else
	#include <unistd.h>
	#include <sys/types.h>
	#include <sys/socket.h>
	#include <sys/ioctl.h>
	#include <netinet/in.h>
	#include <net/if.h>
	#include <netdb.h>
	#define closesocket(S) ::close(S)
	using socket_t = int;
	#define INVALID_SOCKET (-1)
	#define SOCKET_ERROR (-1)
	#define stricmp(A, B) strcasecmp(A, B)
	#define strnicmp(A, B, C) strncasecmp(A, B, C)
	#endif

	#if USE_OPENSSL
	#include <openssl/crypto.h>
	#include <openssl/ssl.h>
	#include <openssl/err.h>
	#include <openssl/evp.h>
	#include <openssl/rand.h>
	#include <openssl/x509.h>
	#else
	typedef void SSL;
	typedef void SSL_CTX;
	#endif

	#include <cassert>
	#include "charvec.h"

	#define USER_AGENT "Generic Web Client"

	struct WebContext::Private {
	SSL_CTX *ctx = nullptr;
	bool use_keep_alive = false;
	WebProxy http_proxy;
	WebProxy https_proxy;
	};

	WebClient::URL::URL(std::string const &addr)
	{
	data.full_request = addr;

	char const *str = addr.c_str();
	char const *left;
	char const *right;
	left = str;
	right = strstr(left, "://");
	if (right) {
	data.scheme.assign(str, right - str);
	left = right + 3;
	}
	right = strchr(left, '/');
	if (!right) {
	right = left + strlen(left);
	}
	if (right) {
	char const *p = strchr(left, ':');
	if (p && left < p && p < right) {
	int n = 0;
	char const *q = p + 1;
	while (q < right) {
	if (isdigit(*q & 0xff)) {
	n = n * 10 + (*q - '0');
	} else {
	n = -1;
	break;
	}
	q++;
	}
	data.host.assign(left, p - left);
	if (n > 0 && n < 65536) {
	data.port = n;
	}
	} else {
	data.host.assign(left, right - left);
	}
	data.path = right;
	}
	}

	bool WebClient::URL::isssl() const
	{
	if (scheme() == "https") return true;
	if (scheme() == "http") return false;
	if (port() == 443) return true;
	return false;
	}

	void WebClientHandler::abort(std::string const &message)
	{
	throw WebClient::Error(message);
	}

	struct WebClient::Private {
	std::vector<std::string> request_header;
	Error error;
	Response response;
	WebContext *webcx;
	int crlf_state = 0;
	size_t content_offset = 0;
	std::string last_host_name;
	int last_port = 0;
	bool keep_alive = false;
	socket_t sock = INVALID_SOCKET;
	SSL *ssl = nullptr;
	};

	WebClient::WebClient(WebContext *webcx)
	: m(new Private)
	{
	assert(webcx);
	m->webcx = webcx;
	}

	WebClient::~WebClient()
	{
	close();
	delete m;
	}

	void WebClient::initialize()
	{
	#ifdef _WIN32
	WSADATA wsaData;
	WORD wVersionRequested;
	wVersionRequested = MAKEWORD(1, 1);
	WSAStartup(wVersionRequested, &wsaData);
	atexit(cleanup);
	#endif
	#if USE_OPENSSL
	OpenSSL_add_all_algorithms();
	#endif
	}

	void WebClient::cleanup()
	{
	#if USE_OPENSSL
	ERR_free_strings();
	#endif
	#ifdef _WIN32
	WSACleanup();
	#endif
	}

	void WebClient::reset()
	{
	m->request_header.clear();
	m->error = Error();
	m->response = Response();
	m->crlf_state = 0;
	m->content_offset = 0;
	}

	void WebClient::output_debug_string(char const *str)
	{
	if (0) {
	#ifdef _WIN32
	OutputDebugStringA(str);
	#else
	fwrite(str, 1, strlen(str), stderr);
	#endif
	}
	}

	void WebClient::output_debug_strings(std::vector<std::string> const &vec)
	{
	for (std::string const &s : vec) {
	output_debug_string((s + '\n').c_str());
	}
	}

	WebClient::Error const &WebClient::error() const
	{
	return m->error;
	}

	void WebClient::clear_error()
	{
	m->error = Error();
	}

	int WebClient::get_port(URL const url, char const scheme, char const *protocol)
	{
	int port = url->port();
	if (port < 1 \|\| port > 65535) {
	struct servent *s;
	s = getservbyname(url->scheme().c_str(), protocol);
	if (s) {
	port = ntohs(s->s_port);
	} else {
	s = getservbyname(scheme, protocol);
	if (s) {
	port = ntohs(s->s_port);
	}
	}
	if (port < 1 \|\| port > 65535) {
	port = 80;
	}
	}
	return port;
	}

	static inline std::string to_s(size_t n)
	{
	char tmp[100];
	sprintf(tmp, "%u", (int)n);
	return tmp;
	}

	void WebClient::set_default_header(URL const &url, Post const *post, RequestOption const &opt)
	{
	std::vector<std::string> header;
	auto AddHeader = [&](std::string const &s){
	header.push_back(s);
	};
	AddHeader("Host: " + url.host());
	AddHeader("User-Agent: " USER_AGENT);
	AddHeader("Accept: /");
	if (opt.keep_alive) {
	AddHeader("Connection: keep-alive");
	} else {
	AddHeader("Connection: close");
	}
	if (post) {
	AddHeader("Content-Length: " + to_s(post->data.size()));
	std::string ct = "Content-Type: ";
	if (post->content_type.empty()) {
	ct += "application/octet-stream";
	} else if (post->content_type == CT_MULTIPART_FORM_DATA) {
	ct += post->content_type;
	if (!post->boundary.empty()) {
	ct += "; boundary=";
	ct += post->boundary;
	}
	} else {
	ct += post->content_type;
	}
	AddHeader(ct);
	}
	header.insert(header.end(), m->request_header.begin(), m->request_header.end());
	m->request_header = std::move(header);
	}

	std::string WebClient::make_http_request(URL const &url, Post const post, WebProxy const proxy, bool https)
	{
	std::string str;

	str = post ? "POST " : "GET ";

	if (proxy && !https) {
	str += url.data.full_request;
	str += " HTTP/1.0";
	str += "\r\n";
	} else {
	str += url.path();
	str += " HTTP/1.0";
	str += "\r\n";
	}

	for (std::string const &s: m->request_header) {
	str += s;
	str += "\r\n";
	}

	str += "\r\n";
	return str;
	}

	void WebClient::parse_http_header(char const begin, char const end, std::vector<std::string> *header)
	{
	if (begin < end) {
	char const *left = begin;
	char const *right = left;
	while (1) {
	if (right >= end) {
	break;
	}
	if (right == '\r' \|\| right == '\n') {
	if (left < right) {
	header->push_back(std::string(left, right));
	}
	if (right + 1 < end && *right == '\r' && right[1] == '\n') {
	right++;
	}
	right++;
	if (right == '\r' \|\| right == '\n') {
	if (right + 1 < end && *right == '\r' && right[1] == '\n') {
	right++;
	}
	right++;
	left = right;
	break;
	}
	left = right;
	} else {
	right++;
	}
	}
	}
	}

	void WebClient::parse_http_header(char const begin, char const end, WebClient::Response *out)
	{
	*out = Response();
	parse_http_header(begin, end, &out->header);
	parse_header(&out->header, out);
	}

	static void send_(socket_t s, char const *ptr, int len)
	{
	while (len > 0) {
	int n = send(s, ptr, len, 0);
	if (n < 1 \|\| n > len) {
	throw WebClient::Error("send request failed.");
	}
	ptr += n;
	len -= n;
	}
	}

	void WebClient::on_end_header(std::vector<char> const vec, WebClientHandler handler)
	{
	if (vec->empty()) return;
	char const *begin = &vec->at(0);
	char const *end = begin + vec->size();
	parse_http_header(begin, end, &m->response);
	if (handler) {
	handler->checkHeader(this);
	}
	}

	void WebClient::append(char const ptr, size_t len, std::vector<char> out, WebClientHandler *handler)
	{
	size_t offset = out->size();
	out->insert(out->end(), ptr, ptr + len);

	if (m->crlf_state < 0) {
	// nop
	} else {
	for (size_t i = 0; i < len; i++) {
	int c = ptr[i] & 0xff;
	if (c == '\r') {
	m->crlf_state \|= 1;
	} else if (c == '\n') {
	m->crlf_state \|= 1;
	m->crlf_state++;
	} else {
	m->crlf_state = 0;
	}
	if (m->crlf_state == 4) {
	m->content_offset = offset + i + 1;
	on_end_header(out, handler);
	m->crlf_state = -1;
	break;
	}
	}
	}
	if (handler && m->content_offset > 0) {
	offset = out->size();
	if (offset > m->content_offset) {
	size_t len = offset - m->content_offset;
	char const *ptr = &out->at(m->content_offset);
	handler->checkContent(ptr, len);
	}
	}
	}

	static char stristr(char str1, char const *str2)
	{
	size_t len1 = strlen(str1);
	size_t len2 = strlen(str2);
	for (size_t i = 0; i + len2 <= len1; i++) {
	if (strnicmp(str1 + i, str2, len2) == 0) {
	return str1 + i;
	}
	}
	return nullptr;
	}

	class ResponseHeader {
	public:
	size_t pos = 0;
	std::vector<char> line;
	int content_length = -1;
	bool connection_keep_alive = false;
	bool connection_close = false;
	int lf = 0;
	enum State {
	Header,
	Content,
	};
	State state = Header;
	void put(int c)
	{
	pos++;
	if (state == Header) {
	if (c== '\r' \|\| c == '\n') {
	if (!line.empty()) {
	line.push_back(0);
	char *begin = &line[0];
	char *p = strchr(begin, ':');
	if (p && *p == ':') {
	*p++ = 0;
	auto IS = [&](char const *name){ return stricmp(begin, name) == 0; };
	if (IS("content-length")) {
	content_length = strtol(p, nullptr, 10);
	} else if (IS("connection")) {
	if (stristr(p, "keep-alive")) {
	connection_keep_alive = true;
	} else if (stristr(p, "close")) {
	connection_close = true;
	}
	}
	}
	line.clear();
	}
	if (c== '\r') {
	return;
	}
	if (c == '\n') {
	lf++;
	if (lf == 2) {
	state = Content;
	}
	return;
	}
	}
	lf = 0;
	line.push_back(c);
	}
	}
	};

	void WebClient::receive_(RequestOption const &opt, std::function<int(char , int)> rcv, std::vector<char> out)
	{
	char buf[4096];
	size_t pos = 0;
	ResponseHeader rh;
	while (1) {
	int n;
	if (rh.state == ResponseHeader::Content && rh.content_length >= 0) {
	n = rh.pos + rh.content_length - pos;
	if (n > (int)sizeof(buf)) {
	n = sizeof(buf);
	}
	if (n < 1) break;
	} else {
	n = sizeof(buf);
	}
	n = rcv(buf, n);
	if (n < 1) break;
	if (0) { // debug
	fwrite(buf, 1, n, stderr);
	}
	append(buf, n, out, opt.handler);
	pos += n;
	if (rh.state == ResponseHeader::Header) {
	for (int i = 0; i < n; i++) {
	rh.put(buf[i]);
	if (rh.state == ResponseHeader::Content) {
	m->keep_alive = rh.connection_keep_alive && !rh.connection_close;
	break;
	}
	}
	}
	}
	}

	bool WebClient::http_get(URL const &request_url, Post const post, RequestOption const &opt, std::vector<char> out)
	{
	clear_error();
	out->clear();

	URL server_url;

	WebProxy const *proxy = m->webcx->http_proxy();
	if (proxy) {
	server_url = URL(proxy->server);
	} else {
	server_url = request_url;
	}

	std::string hostname = server_url.host();
	int port = get_port(&server_url, "http", "tcp");

	m->keep_alive = opt.keep_alive && hostname == m->last_host_name && port == m->last_port;
	if (!m->keep_alive) close();

	if (m->sock == INVALID_SOCKET) {
	struct hostent *servhost;
	struct sockaddr_in server;

	servhost = gethostbyname(hostname.c_str());
	if (!servhost) {
	throw Error("gethostbyname failed.");
	}

	memset((char *)&server, 0, sizeof(server));
	server.sin_family = AF_INET;

	memcpy((char *)&server.sin_addr, servhost->h_addr, servhost->h_length);

	server.sin_port = htons(port);

	m->sock = socket(AF_INET, SOCK_STREAM, 0);
	if (m->sock == INVALID_SOCKET) {
	throw Error("socket failed.");
	}

	if (connect(m->sock, (struct sockaddr*) &server, sizeof(server)) == SOCKET_ERROR) {
	throw Error("connect failed.");
	}
	}
	m->last_host_name = hostname;
	m->last_port = port;

	set_default_header(request_url, post, opt);

	std::string request = make_http_request(request_url, post, proxy, false);

	send_(m->sock, request.c_str(), (int)request.size());
	if (post && !post->data.empty()) {
	send_(m->sock, (char const *)&post->data[0], (int)post->data.size());
	}

	m->crlf_state = 0;
	m->content_offset = 0;

	receive_(opt, [&](char *ptr, int len){
	return recv(m->sock, ptr, len, 0);
	}, out);

	if (!m->keep_alive) close();

	return true;
	}

	bool WebClient::https_get(const URL &request_url, Post const post, RequestOption const &opt, std::vector<char> out)
	{
	#if USE_OPENSSL

	auto *sslctx = m->webcx->m->ctx;
	if (!m->webcx \|\| !sslctx) {
	output_debug_string("SSL context is null.\n");
	return false;
	}

	clear_error();
	out->clear();

	auto get_ssl_error = []()->std::string{
	char tmp[1000];
	unsigned long e = ERR_get_error();
	ERR_error_string_n(e, tmp, sizeof(tmp));
	return tmp;
	};

	URL server_url;

	WebProxy const *proxy = m->webcx->https_proxy();
	if (proxy) {
	server_url = URL(proxy->server);
	} else {
	server_url = request_url;
	}

	std::string hostname = server_url.host();
	int port = get_port(&server_url, "https", "tcp");

	m->keep_alive = opt.keep_alive && hostname == m->last_host_name && port == m->last_port;
	if (!m->keep_alive) close();

	socket_t sock = m->sock;
	SSL *ssl = m->ssl;
	if (sock == INVALID_SOCKET \|\| !ssl) {
	int ret;
	struct hostent *servhost;
	struct sockaddr_in server;

	servhost = gethostbyname(server_url.host().c_str());
	if (!servhost) {
	- throw Error("gethostbyname failed.");
	+ throw Error("gethostbyname failed: " + server_url.host());
	}

	memset((char *)&server, 0, sizeof(server));
	server.sin_family = AF_INET;

	memcpy((char *)&server.sin_addr, servhost->h_addr, servhost->h_length);

	server.sin_port = htons(port);

	if (sock == INVALID_SOCKET) {
	sock = socket(AF_INET, SOCK_STREAM, 0);
	if (sock == INVALID_SOCKET) {
	throw Error("socket failed.");
	}
	if (connect(sock, (struct sockaddr*) &server, sizeof(server)) == SOCKET_ERROR) {
	throw Error("connect failed.");
	}
	}

	if (proxy) { // testing
	char port[10];
	sprintf(port, ":%u", get_port(&request_url, "https", "tcp"));

	std::string str = "CONNECT ";
	str += request_url.data.host;
	str += port;
	str += " HTTP/1.0\r\n\r\n";
	send_(sock, str.c_str(), str.size());
	char tmp[1000];
	int n = recv(sock, tmp, sizeof(tmp), 0);
	int i;
	for (i = 0; i < n; i++) {
	char c = tmp[i];
	if (c < 0x20) break;
	}
	if (i > 0) {
	std::string s(tmp, i);
	s = "proxy: " + s + '\n';
	#ifdef _WIN32
	OutputDebugStringA(s.c_str());
	#else
	fprintf(stderr, "%s", tmp);
	#endif
	}
	}

	ssl = SSL_new(sslctx);
	if (!ssl) {
	throw Error(get_ssl_error());
	}

	SSL_set_options(ssl, SSL_OP_NO_SSLv2);
	SSL_set_options(ssl, SSL_OP_NO_SSLv3);

	ret = SSL_set_fd(ssl, sock);
	if (ret == 0) {
	throw Error(get_ssl_error());
	}

	RAND_poll();
	while (RAND_status() == 0) {
	unsigned short rand_ret = rand() % 65536;
	RAND_seed(&rand_ret, sizeof(rand_ret));
	}

	ret = SSL_connect(ssl);
	if (ret != 1) {
	throw Error(get_ssl_error());
	}

	std::string cipher = SSL_get_cipher(ssl);
	cipher += '\n';
	output_debug_string(cipher.c_str());

	std::string version = SSL_get_cipher_version(ssl);
	version += '\n';
	output_debug_string(version.c_str());

	X509 *x509 = SSL_get_peer_certificate(ssl);
	if (x509) {
	#ifndef OPENSSL_NO_SHA1
	std::string fingerprint;
	for (int i = 0; i < SHA_DIGEST_LENGTH; i++) {
	if (i > 0) {
	fingerprint += ':';
	}
	char tmp[10];
	sprintf(tmp, "%02X", x509->sha1_hash[i]);
	fingerprint += tmp;
	}
	fingerprint += '\n';
	output_debug_string(fingerprint.c_str());
	#endif
	long l = SSL_get_verify_result(ssl);
	if (l == X509_V_OK) {
	// ok
	} else {
	// wrong
	std::string err = X509_verify_cert_error_string(l);
	err += '\n';
	output_debug_string(err.c_str());
	}

	std::vector<std::string> vec;

	auto GETSTRINGS = [](X509_NAME x509name, std::vector<std::string> out){
	out->clear();
	if (x509name) {
	int n = X509_NAME_entry_count(x509name);
	for (int i = 0; i < n; i++) {
	X509_NAME_ENTRY *entry = X509_NAME_get_entry(x509name, i);
	ASN1_STRING *asn1str = X509_NAME_ENTRY_get_data(entry);
	int asn1len = ASN1_STRING_length(asn1str);
	unsigned char *p = ASN1_STRING_data(asn1str);
	std::string str((char const *)p, asn1len);
	out->push_back(str);
	}
	}
	};

	X509_NAME *subject = X509_get_subject_name(x509);
	GETSTRINGS(subject, &vec);
	output_debug_string("--- subject ---\n");
	output_debug_strings(vec);

	X509_NAME *issuer = X509_get_issuer_name(x509);
	GETSTRINGS(issuer, &vec);
	output_debug_string("--- issuer ---\n");
	output_debug_strings(vec);

	ASN1_TIME *not_before = X509_get_notBefore(x509);
	ASN1_TIME *not_after = X509_get_notAfter(x509);
	(void)not_before;
	(void)not_after;

	X509_free(x509);
	} else {
	// wrong
	}
	}
	m->last_host_name = hostname;
	m->last_port = port;

	set_default_header(request_url, post, opt);

	std::string request = make_http_request(request_url, post, proxy, true);

	auto SEND = [&](char const *ptr, int len){
	while (len > 0) {
	int n = SSL_write(ssl, ptr, len);
	if (n < 1 \|\| n > len) {
	throw WebClient::Error(get_ssl_error());
	}
	ptr += n;
	len -= n;
	}
	};

	SEND(request.c_str(), (int)request.size());
	if (post && !post->data.empty()) {
	SEND((char const *)&post->data[0], (int)post->data.size());
	}

	m->crlf_state = 0;
	m->content_offset = 0;

	receive_(opt, [&](char *ptr, int len){
	return SSL_read(ssl, ptr, len);
	}, out);

	m->sock = sock;
	m->ssl = ssl;
	if (!m->keep_alive) close();
	return true;
	#endif
	return false;
	}

	-void WebClient::get(URL const &url, Post const post, Response out, WebClientHandler *handler)
	+bool WebClient::get(URL const &url, Post const post, Response out, WebClientHandler *handler)
	{
	reset();
	try {
	if (!m->webcx->m) {
	throw Error("WebContext is null.");
	}
	RequestOption opt;
	opt.keep_alive = m->webcx->m->use_keep_alive;
	opt.handler = handler;
	std::vector<char> res;
	if (url.isssl()) {
	#if USE_OPENSSL
	https_get(url, post, opt, &res);
	#endif
	} else {
	http_get(url, post, opt, &res);
	}
	if (!res.empty()) {
	char const *begin = &res[0];
	char const *end = begin + res.size();
	char const *ptr = begin + m->content_offset;
	if (ptr < end) {
	out->content.assign(ptr, end);
	}
	}
	- return;
	+ return true;
	} catch (Error const &e) {
	m->error = e;
	close();
	}
	*out = Response();
	+ return false;
	}

	void WebClient::parse_header(std::vector<std::string> const header, WebClient::Response res)
	{
	if (!header->empty()) {
	std::string const &line = header->at(0);
	char const *begin = line.c_str();
	char const *end = begin + line.size();
	if (line.size() > 5 && strncmp(line.c_str(), "HTTP/", 5) == 0) {
	int state = 0;
	res->version.hi = res->version.lo = res->code = 0;
	char const *ptr = begin + 5;
	while (1) {
	int c = 0;
	if (ptr < end) {
	c = *ptr & 0xff;
	}
	switch (state) {
	case 0:
	if (isdigit(c)) {
	res->version.hi = res->version.hi * 10 + (c - '0');
	} else if (c == '.') {
	state = 1;
	} else {
	state = -1;
	}
	break;
	case 1:
	if (isdigit(c)) {
	res->version.lo = res->version.lo * 10 + (c - '0');
	} else if (isspace(c)) {
	state = 2;
	} else {
	state = -1;
	}
	break;
	case 2:
	if (isspace(c)) {
	if (res->code != 0) {
	state = -1;
	}
	} else if (isdigit(c)) {
	res->code = res->code * 10 + (c - '0');
	} else {
	state = -1;
	}
	break;
	default:
	state = -1;
	break;
	}
	if (c == 0 \|\| state < 0) {
	break;
	}
	ptr++;
	}
	}
	}
	}

	std::string WebClient::header_value(std::vector<std::string> const *header, std::string const &name)
	{
	for (size_t i = 1; i < header->size(); i++) {
	std::string const &line = header->at(i);
	char const *begin = line.c_str();
	char const *end = begin + line.size();
	char const *colon = strchr(begin, ':');
	if (colon) {
	if (strnicmp(begin, name.c_str(), name.size()) == 0) {
	char const *ptr = colon + 1;
	while (ptr < end && isspace(*ptr & 0xff)) ptr++;
	return std::string(ptr, end);
	}
	}
	}
	return std::string();
	}

	std::string WebClient::header_value(std::string const &name) const
	{
	return header_value(&m->response.header, name);
	}

	std::string WebClient::content_type() const
	{
	std::string s = header_value("Content-Type");
	char const *begin = s.c_str();
	char const *end = begin + s.size();
	char const *ptr = begin;
	while (ptr < end) {
	int c = *ptr & 0xff;
	if (c == ';' \|\| c < 0x21) break;
	ptr++;
	}
	if (ptr < end) return std::string(begin, ptr);
	return s;
	}

	size_t WebClient::content_length() const
	{
	return m->response.content.size();
	}

	char const *WebClient::content_data() const
	{
	if (m->response.content.empty()) return "";
	return &m->response.content[0];
	}

	int WebClient::get(URL const &url, WebClientHandler *handler)
	{
	get(url, nullptr, &m->response, handler);
	return m->response.code;
	}

	int WebClient::post(URL const &url, Post const post, WebClientHandler handler)
	{
	get(url, post, &m->response, handler);
	return m->response.code;
	}

	void WebClient::close()
	{
	#if USE_OPENSSL
	if (m->ssl) {
	SSL_shutdown(m->ssl);
	SSL_free(m->ssl);
	m->ssl = nullptr;
	}
	#endif
	if (m->sock != INVALID_SOCKET) {
	shutdown(m->sock, 2); // SD_BOTH or SHUT_RDWR
	closesocket(m->sock);
	m->sock = INVALID_SOCKET;
	}
	}

	void WebClient::add_header(std::string const &text)
	{
	m->request_header.push_back(text);
	}

	WebClient::Response const &WebClient::response() const
	{
	return m->response;
	}

	void WebClient::make_application_www_form_urlencoded(char const begin, char const end, WebClient::Post *out)
	{
	*out = WebClient::Post();
	out->content_type = CT_APPLICATION_X_WWW_FORM_URLENCODED;
	print(&out->data, begin, end - begin);
	}

	void WebClient::make_multipart_form_data(std::vector<Part> const &parts, WebClient::Post *out, std::string const &boundary)
	{
	*out = WebClient::Post();
	out->content_type = CT_MULTIPART_FORM_DATA;
	out->boundary = boundary;

	for (Part const &part : parts) {
	print(&out->data, "--");
	print(&out->data, out->boundary);
	print(&out->data, "\r\n");
	if (!part.content_disposition.type.empty()) {
	ContentDisposition const &cd = part.content_disposition;
	std::string s;
	s = "Content-Disposition: ";
	s += cd.type;
	auto Add = [&s](std::string const &name, std::string const &value){
	if (!value.empty()) {
	s += "; " + name + "=\"";
	s += value;
	s += '\"';
	}
	};
	Add("name", cd.name);
	Add("filename", cd.filename);
	print(&out->data, s);
	print(&out->data, "\r\n");
	}
	if (!part.content_type.empty()) {
	print(&out->data, "Content-Type: " + part.content_type + "\r\n");
	}
	if (!part.content_transfer_encoding.empty()) {
	print(&out->data, "Content-Transfer-Encoding: " + part.content_transfer_encoding + "\r\n");
	}
	print(&out->data, "\r\n");
	print(&out->data, part.data, part.size);
	print(&out->data, "\r\n");
	}

	print(&out->data, "--");
	print(&out->data, out->boundary);
	print(&out->data, "--\r\n");
	}

	void WebClient::make_multipart_form_data(char const data, size_t size, WebClient::Post out, std::string const &boundary)
	{
	Part part;
	part.data = data;
	part.size = size;
	std::vector<Part> parts;
	parts.push_back(part);
	make_multipart_form_data(parts, out, boundary);
	}


	//

	WebContext::WebContext()
	: m(new Private)
	{
	#if USE_OPENSSL
	SSL_load_error_strings();
	SSL_library_init();
	m->ctx = SSL_CTX_new(SSLv23_client_method());
	#endif
	}

	WebContext::~WebContext()
	{
	#if USE_OPENSSL
	SSL_CTX_free(m->ctx);
	#endif
	delete m;
	}

	void WebContext::set_keep_alive_enabled(bool f)
	{
	m->use_keep_alive = f;
	}

	void WebContext::set_http_proxy(std::string const &proxy)
	{
	m->http_proxy = WebProxy();
	m->http_proxy.server = proxy;
	}

	void WebContext::set_https_proxy(std::string const &proxy)
	{
	m->https_proxy = WebProxy();
	m->https_proxy.server = proxy;
	}

	const WebProxy *WebContext::http_proxy() const
	{
	if (!m->http_proxy.empty()) {
	return &m->http_proxy;
	}
	return nullptr;
	}

	const WebProxy *WebContext::https_proxy() const
	{
	if (!m->https_proxy.empty()) {
	return &m->https_proxy;
	}
	if (!m->http_proxy.empty()) {
	return &m->http_proxy;
	}
	return nullptr;
	}

	bool WebContext::load_cacert(char const *path)
	{
	#if USE_OPENSSL
	int r = SSL_CTX_load_verify_locations(m->ctx, path, nullptr);
	return r == 1;
	#else
	return false;
	#endif
	}

	diff --git a/src/webclient.h b/src/webclient.h
	index b99df66..cd6b9f8 100644
	--- a/src/webclient.h
	+++ b/src/webclient.h
	@@ -1,184 +1,184 @@

	#ifndef WEBCLIENT_H_
	#define WEBCLIENT_H_

	#include <vector>
	#include <string>
	#include <functional>

	#define USE_OPENSSL 1
	#define OPENSSL_NO_SHA1 1

	class WebContext;
	class WebClient;

	#define CT_APPLICATION_X_WWW_FORM_URLENCODED "application/x-www-form-urlencoded"
	#define CT_MULTIPART_FORM_DATA "multipart/form-data"

	class WebClientHandler {
	protected:
	void abort(std::string const &message = std::string());
	public:
	virtual ~WebClientHandler() = default;
	virtual void checkHeader(WebClient * /wc/)
	{
	}
	virtual void checkContent(char const * /ptr/, size_t /len/)
	{
	}
	};

	class WebProxy {
	public:
	std::string server;
	bool empty() const
	{
	return server.empty();
	}
	};

	class WebClient {
	public:
	class URL {
	friend class WebClient;
	private:
	struct Data {
	std::string full_request;
	std::string scheme;
	std::string host;
	int port = 0;
	std::string path;
	} data;
	public:
	URL() = default;
	URL(std::string const &addr);
	std::string const &scheme() const { return data.scheme; }
	std::string const &host() const { return data.host; }
	int port() const { return data.port; }
	std::string const &path() const { return data.path; }
	bool isssl() const;
	};

	class Error {
	private:
	std::string msg_;
	public:
	Error() = default;
	Error(std::string const &message)
	: msg_(message)
	{
	}
	virtual ~Error() = default;
	std::string message() const
	{
	return msg_;
	}
	};
	struct Response {
	int code = 0;
	struct Version {
	unsigned int hi = 0;
	unsigned int lo = 0;
	} version;
	std::vector<std::string> header;
	std::vector<char> content;
	};
	struct Post {
	std::string content_type;
	std::string boundary;
	std::vector<char> data;
	};
	struct ContentDisposition {
	std::string type;
	std::string name;
	std::string filename;
	};
	struct Part {
	char const *data = nullptr;
	size_t size = 0;
	std::string content_type;
	ContentDisposition content_disposition;
	std::string content_transfer_encoding;
	Part() = default;
	Part(char const *data, size_t size, std::string const &content_type = std::string())
	: data(data)
	, size(size)
	, content_type(content_type)
	{
	}
	void set_content_disposition(ContentDisposition const &cd)
	{
	content_disposition = cd;
	}
	};
	struct RequestOption {
	WebClientHandler *handler = nullptr;
	bool keep_alive = true;
	};
	private:
	struct Private;
	Private *m;
	void clear_error();
	static int get_port(URL const url, char const scheme, char const *protocol);
	void set_default_header(URL const &url, Post const *post, const RequestOption &opt);
	std::string make_http_request(URL const &url, Post const post, const WebProxy proxy, bool https);
	void parse_http_header(char const begin, char const end, std::vector<std::string> *header);
	void parse_http_header(char const begin, char const end, Response *out);
	bool http_get(URL const &request_url, Post const post, RequestOption const &opt, std::vector<char> out);
	bool https_get(URL const &request_url, Post const post, RequestOption const &opt, std::vector<char> out);
	- void get(URL const &url, Post const post, Response out, WebClientHandler *handler);
	+ bool get(URL const &url, Post const post, Response out, WebClientHandler *handler);
	static void parse_header(std::vector<std::string> const header, WebClient::Response res);
	static std::string header_value(std::vector<std::string> const *header, std::string const &name);
	void append(char const ptr, size_t len, std::vector<char> out, WebClientHandler *handler);
	void on_end_header(const std::vector<char> vec, WebClientHandler handler);
	void receive_(const RequestOption &opt, std::function<int (char , int)>, std::vector<char> out);
	void output_debug_string(char const *str);
	void output_debug_strings(const std::vector<std::string> &vec);
	static void cleanup();
	void reset();
	public:
	static void initialize();
	WebClient(WebContext *webcx);
	~WebClient();
	WebClient(WebClient const &) = delete;
	void operator = (WebClient const &) = delete;

	Error const &error() const;
	int get(URL const &url, WebClientHandler *handler = nullptr);
	int post(URL const &url, Post const post, WebClientHandler handler = nullptr);
	void close();
	void add_header(std::string const &text);
	Response const &response() const;
	std::string header_value(std::string const &name) const;
	std::string content_type() const;
	size_t content_length() const;
	char const *content_data() const;

	static void make_application_www_form_urlencoded(char const begin, char const end, WebClient::Post *out);
	static void make_multipart_form_data(const std::vector<Part> &parts, WebClient::Post *out, std::string const &boundary);
	static void make_multipart_form_data(char const data, size_t size, WebClient::Post out, std::string const &boundary);
	};

	class WebContext {
	friend class WebClient;
	public:
	private:
	struct Private;
	Private *m;
	public:
	WebContext();
	~WebContext();
	WebContext(WebContext const &r) = delete;
	void operator = (WebContext const &r) = delete;

	void set_keep_alive_enabled(bool f);

	void set_http_proxy(std::string const &proxy);
	void set_https_proxy(std::string const &proxy);
	WebProxy const *http_proxy() const;
	WebProxy const *https_proxy() const;

	bool load_cacert(char const *path);
	};

	#endif

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