Basic support for passing postgresql uri on the commandline

pglab/ConnectionController.cpp

@@ -40,7 +40,6 @@ void ConnectionController::init()
 	m_connectionTreeModel->load();
 
 	m_connectionManagerWindow = new ConnectionManagerWindow(m_masterController, nullptr);
-	m_connectionManagerWindow->show();
 }
 
 void ConnectionController::showConnectionManager()
@@ -55,17 +54,22 @@ void ConnectionController::openSqlWindowForConnection(QModelIndex index)
 
 		if (retrieveConnectionPassword(*config)) {
 			m_connectionTreeModel->save(*config);
+
+            openSqlWindowForConnection(*config);
+		}
+	}
+}
+
+void ConnectionController::openSqlWindowForConnection(const ConnectionConfig &config)
+{
     // TODO instead of directly openening the mainwindow
     // do async connect and only open window when we have
     // working connection
     auto w = new DatabaseWindow(m_masterController, nullptr);
     w->setAttribute( Qt::WA_DeleteOnClose );
-			w->setConfig(*config);
+    w->setConfig(config);
     w->showMaximized();
 }
-	}
-
-}
 
 void ConnectionController::openBackupDlgForConnection(QModelIndex index)
 {

pglab/ConnectionController.h

@@ -38,6 +38,7 @@ public:
 
 	void showConnectionManager();
 	void openSqlWindowForConnection(QModelIndex index);
+    void openSqlWindowForConnection(const ConnectionConfig &cfg);
     void openBackupDlgForConnection(QModelIndex index);
 
 	/// Starts the form for creating a new conncetion.

pglab/ConnectionListModel.cpp

@@ -1,16 +1,19 @@
 #include "ConnectionListModel.h"
 #include "ScopeGuard.h"
-#include "util.h"
 
 #include <botan/cryptobox.h>
 #include <QDir>
+#include <QException>
 #include <QMimeData>
 #include <QSettings>
 #include <QSqlDatabase>
 #include <QSqlError>
 #include <QSqlQuery>
+#include <QString>
+#include <QStringBuilder>
 #include <QStandardPaths>
 #include <QStringBuilder>
+#include <unordered_set>
 
 
 namespace {
@@ -41,6 +44,16 @@ CREATE TABLE IF NOT EXISTS connection (
 	password      TEXT
 );)__";
 
+    const char * const q_create_table_migrations =
+        R"__(
+CREATE TABLE IF NOT EXISTS _migration (
+    migration_id  TEXT PRIMARY KEY
+);)__";
+
+    const char * const q_load_migrations_present =
+        R"__(
+SELECT migration_id
+FROM _migration;)__";
 
 
 	const char * const q_insert_or_replace_into_connection =
@@ -49,21 +62,136 @@ R"__(INSERT OR REPLACE INTO connection
 		:sslmode, :sslcert, :sslkey, :sslrootcert, :sslcrl, :password);
 )__"	;
 
-	std::tuple<bool, QSqlError> InitConnectionTables(QSqlDatabase &db)
+
+// Keeping migration function name and id DRY
+#define APPLY_MIGRATION(id) ApplyMigration(#id, &MigrationDirector::id)
+
+    class MigrationDirector {
+    public:
+        explicit MigrationDirector(QSqlDatabase &db)
+            : db(db)
         {
+        }
+
+        void Execute()
+        {
+            InitConnectionTables();
+            present = LoadMigrations();
+            APPLY_MIGRATION(M20250215_0933_Parameters);
+        }
+
+    private:
+        QSqlDatabase &db;
+        std::unordered_set<QString> present;
+
+        void M20250215_0933_Parameters()
+        {
+            Exec(R"__(
+CREATE TABLE connection_parameter (
+    connection_uuid TEXT,
+    pname TEXT,
+    pvalue TEXT NOT NULL,
+
+    PRIMARY KEY(connection_uuid, pname)
+);)__");
+
+
+            for (QString key : { "host", "hostaddr", "user", "dbname", "sslmode", "sslcert", "sslkey", "sslrootcert", "sslcrl" })
+            {
+                Exec(
+                    "INSERT INTO connection_parameter (connection_uuid, pname, pvalue)"
+                    "  SELECT uuid, '" % key % "', " % key % "\n"
+                    "   FROM connection\n"
+                    "   WHERE " % key % " IS NOT NULL and " % key % " <> '';");
+            }
+            Exec(R"__(
+INSERT INTO connection_parameter (connection_uuid, pname, pvalue)
+  SELECT uuid, 'port', port
+  FROM connection
+  WHERE port IS NOT NULL;
+)__");
+
+            for (QString column : { "host", "hostaddr", "user", "dbname", "sslmode", "sslcert", "sslkey", "sslrootcert", "sslcrl", "port" })
+            {
+                // sqlite does not seem to support dropping more then one column per alter table
+                Exec("ALTER TABLE connection DROP COLUMN " % column % ";");
+            }
+        }
+
+        void Exec(QString query)
+        {
+            QSqlQuery q(query, db);
+            Verify(q);
+        }
+
+        void ApplyMigration(QString migration_id, void (MigrationDirector::*func)())
+        {
+            if (!present.contains(migration_id))
+            {
+                if (!db.transaction())
+                {
+                    throw std::runtime_error("Failed to start transaction on user configuration database");
+                }
+                (this->*func)();
+                RegisterMigration(migration_id);
+                if (!db.commit())
+                {
+                    db.rollback();
+                    throw std::runtime_error("Failed to commit transaction on user configuration database");
+                }
+            }
+        }
+
+        std::unordered_set<QString> LoadMigrations()
+        {
+            std::unordered_set<QString> result;
+            QSqlQuery q(q_load_migrations_present, db);
+            Verify(q);
+            while (q.next())
+            {
+                result.insert(q.value(0).toString());
+            }
+            return result;
+        }
+
+        void RegisterMigration(QString migrationId)
+        {
+            const char * const q_register_migration =
+                R"__(INSERT INTO _migration VALUES (:id);)__"	;
+
+            QSqlQuery q(db);
+            q.prepare(q_register_migration);
+            q.bindValue(":id", migrationId);
+            if (!q.exec()) {
+                Verify(q);
+            }
+        }
+
+        void Verify(QSqlQuery &q)
+        {
+            auto err = q.lastError();
+            if (err.type() == QSqlError::NoError)
+                return;
+
+            db.rollback();
+            QString errString = err.text();
+            throw std::runtime_error(errString.toStdString());
+        }
+
+        void InitConnectionTables()
+        {
+            // Original schema
             QSqlQuery q_create_table(db);
-		q_create_table.prepare(q_create_table_conngroup);
+            q_create_table.exec(q_create_table_conngroup);
-		if (!q_create_table.exec()) {
+            Verify(q_create_table);
-			auto err = q_create_table.lastError();
+            q_create_table.exec(q_create_table_connection);
-			return { false, err };
+            Verify(q_create_table);
-		}
+            // Start using migrations
-		q_create_table.prepare(q_create_table_connection);
+            q_create_table.exec(q_create_table_migrations);
-		if (!q_create_table.exec()) {
+            Verify(q_create_table);
-			auto err = q_create_table.lastError();
-			return { false, err };
-		}
-		return {true, {}};
         }
+    };
+
 
 	std::optional<QSqlError> SaveConnectionConfig(QSqlDatabase &db, const ConnectionConfig &cc, int conngroup_id)
 	{
@@ -105,7 +233,9 @@ ConnectionTreeModel::ConnectionTreeModel(QObject *parent, QSqlDatabase &db)
 
 void ConnectionTreeModel::load()
 {
-	InitConnectionTables(m_db);
+    //InitConnectionTables(m_db);
+    MigrationDirector md(m_db);
+    md.Execute();
 
 	QSqlQuery q(m_db);
 	q.prepare("SELECT conngroup_id, gname FROM conngroup;");
@@ -124,9 +254,7 @@ void ConnectionTreeModel::load()
 		m_groups.push_back(g);
 	}
 
-	q.prepare("SELECT uuid, cname, conngroup_id, host, hostaddr, port, "
+    q.prepare("SELECT uuid, cname, conngroup_id, password "
-			  "    user, dbname, sslmode, sslcert, sslkey, sslrootcert, sslcrl, "
-			  "    password "
 			  "FROM connection ORDER BY conngroup_id, cname;");
 	if (!q.exec()) {
 //		auto err = q_create_table.lastError();

pglab/MasterController.cpp

@@ -1,5 +1,8 @@
 #include "MasterController.h"
 #include "ConnectionController.h"
+#include "utils/PostgresqlUrlParser.h"
+#include <ConnectionConfig.h>
+#include <QCoreApplication>
 #include <QDebug>
 #include <QDir>
 #include <QStandardPaths>
@@ -39,6 +42,19 @@ void MasterController::init()
 
 	m_connectionController = new ConnectionController(this);
     m_connectionController->init();
+
+
+    QStringList arguments = QCoreApplication::arguments();
+    for (auto && arg : arguments)
+    {
+        ConnectionConfig cfg;
+        if (TryParsePostgresqlUrl(arg, cfg)) {
+            m_connectionController->openSqlWindowForConnection(cfg);
+            return;
+        }
+    }
+
+    m_connectionController->showConnectionManager();
 }
 
 ConnectionController *MasterController::connectionController()

pglablib/ConnectionConfig.cpp

@@ -24,6 +24,20 @@ namespace {
 		return v.empty() ? nullptr : v.c_str();
 	}
 
+    struct {
+        const char * host = "host";
+        const char * hostaddr = "hostaddr";
+        const char * port = "port";
+        const char * dbname = "dbname";
+        const char * user = "user";
+        const char * password = "password";
+        const char * sslmode = "sslmode";
+        const char * sslcert = "sslcert";
+        const char * sslkey = "sslkey";
+        const char * sslrootcert = "sslrootcert";
+        const char * sslcrl = "sslcrl";
+    } keywords;
+
 } // end unnamed namespace
 
 QString SslModeToString(SslMode sm)
@@ -46,7 +60,7 @@ SslMode StringToSslMode(QString s)
 }
 
 ConnectionConfig::ConnectionConfig()
-	: m_applicationName(QCoreApplication::applicationName().toUtf8().data())
+    : m_parameters{{"application_name", QCoreApplication::applicationName()}}
 {}
 
 const ConnectionGroup *ConnectionConfig::parent() const
@@ -92,168 +106,131 @@ const QString& ConnectionConfig::name() const
 
 void ConnectionConfig::setHost(const QString& host)
 {
-    if (m_host != host)
+    setParameter(keywords.host, host);
-    {
-		m_dirty = true;
-		m_host = std::move(host);
-	}
 }
 
-const QString& ConnectionConfig::host() const
+QString ConnectionConfig::host() const
 {
-	return m_host;
+    return getParameter(keywords.host);
 }
 
 void ConnectionConfig::setHostAddr(const QString &v)
 {
-    if (m_hostaddr != v)
+    setParameter(keywords.hostaddr, v);
-    {
-		m_dirty = true;
-		m_hostaddr = std::move(v);
-	}
 }
 
-const QString& ConnectionConfig::hostAddr() const
+QString ConnectionConfig::hostAddr() const
 {
-	return m_hostaddr;
+    return getParameter(keywords.hostaddr);
 }
 
 void ConnectionConfig::setPort(unsigned short port)
 {
-    if (m_port != port)
+    setParameter(keywords.port, QString::number(port));
-    {
-		m_dirty = true;
-		m_port = port;
-	}
 }
 
 unsigned short ConnectionConfig::port() const
 {
-	return m_port;
+    QString s = getParameter(keywords.port);
+    if (s.isEmpty())
+        return 5432;
+
+    unsigned short port = static_cast<unsigned short>(s.toInt());
+    return port;
 }
 
 void ConnectionConfig::setUser(const QString& v)
 {
-    if (m_user != v)
+    setParameter(keywords.user, v);
-    {
-		m_dirty = true;
-        m_user = v;
 }
 
-}
+QString ConnectionConfig::user() const
-
-const QString& ConnectionConfig::user() const
 {
-	return m_user;
+    return getParameter(keywords.user);
 }
 
 void ConnectionConfig::setPassword(const QString& v)
 {
-    if (m_password != v)
+    setParameter(keywords.password, v);
-    {
-		m_dirty = true;
-        m_password = v;
-	}
 }
 
-const QString& ConnectionConfig::password() const
+QString ConnectionConfig::password() const
 {
-	return m_password;
+    return getParameter(keywords.password);
 }
 
 void ConnectionConfig::setDbname(const QString& v)
 {
-    if (m_dbname != v)
+    setParameter(keywords.dbname, v);
-    {
-		m_dirty = true;
-        m_dbname = v;
-	}
 }
 
-const QString& ConnectionConfig::dbname() const
+QString ConnectionConfig::dbname() const
 {
-	return m_dbname;
+    return getParameter(keywords.dbname);
 }
 
 void ConnectionConfig::setSslMode(SslMode m)
 {
-    if (m_sslMode != m)
+    setParameter(keywords.sslmode, SslModeToString(m));
-    {
-		m_dirty = true;
-		m_sslMode = m;
-	}
 }
 
 SslMode ConnectionConfig::sslMode() const
 {
-	return m_sslMode;
+    QString s = getParameter(keywords.sslmode);
+    return StringToSslMode(s);
 }
 
 void ConnectionConfig::setSslCert(const QString& v)
 {
-    if (m_sslCert != v)
+    setParameter(keywords.sslcert, v);
-    {
-		m_dirty = true;
-		m_sslCert = std::move(v);
-	}
 }
 
-const QString& ConnectionConfig::sslCert() const
+QString ConnectionConfig::sslCert() const
 {
-	return m_sslCert;
+    return getParameter(keywords.sslcert);
 }
 
 void ConnectionConfig::setSslKey(const QString& v)
 {
-    if (m_sslKey != v)
+    setParameter(keywords.sslkey, v);
-    {
-		m_dirty = true;
-		m_sslKey = std::move(v);
-	}
 }
 
-const QString& ConnectionConfig::sslKey() const
+QString ConnectionConfig::sslKey() const
 {
-	return m_sslKey;
+    return getParameter(keywords.sslkey);
 }
 
 void ConnectionConfig::setSslRootCert(const QString& v)
 {
-    if (m_sslRootCert != v)
+    setParameter(keywords.sslrootcert, v);
-    {
-		m_dirty = true;
-		m_sslRootCert = std::move(v);
-	}
 }
 
-const QString& ConnectionConfig::sslRootCert() const
+QString ConnectionConfig::sslRootCert() const
 {
-	return m_sslRootCert;
+    return getParameter(keywords.sslrootcert);
 }
 
 void ConnectionConfig::setSslCrl(const QString& v)
 {
-    if (m_sslCrl != v)
+    setParameter(keywords.sslcrl, v);
-    {
-		m_dirty = true;
-		m_sslCrl = std::move(v);
-	}
 }
 
-const QString& ConnectionConfig::sslCrl() const
+QString ConnectionConfig::sslCrl() const
 {
-	return m_sslCrl;
+    return getParameter(keywords.sslcrl);
 }
 
-bool ConnectionConfig::isSameDatabase(const ConnectionConfig &rhs) const
+// bool ConnectionConfig::isSameDatabase(const ConnectionConfig &rhs) const
-{
+// {
-	return m_host     == rhs.m_host
+//     return host() == rhs.host()
-		&& m_hostaddr == rhs.m_hostaddr
+//         // && m_hostaddr == rhs.m_hostaddr
-		&& m_port     == rhs.m_port
+//         // && m_port     == rhs.m_port
-		&& m_user     == rhs.m_user
+//         // && m_user     == rhs.m_user
-		&& m_password == rhs.m_password
+//         // && m_password == rhs.m_password
-		&& m_dbname   == rhs.m_dbname;
+//         // && m_dbname   == rhs.m_dbname
-}
+//         ;
+
+// }
 
 bool ConnectionConfig::dirty() const
 {
@@ -314,58 +291,111 @@ QString ConnectionConfig::escapeConnectionStringValue(const QString &value)
 QString ConnectionConfig::connectionString() const
 {
 	QString s;
-	s += "host="
+
-	  % escapeConnectionStringValue(m_host)
+    for (auto && param : m_parameters)
-	  % " port="
-	  % QString::number(m_port)
-	  % " user="
-	  % escapeConnectionStringValue(m_user);
-	s += " password=";
-	s += escapeConnectionStringValue(m_password);
-	s += " dbname=";
-	s += escapeConnectionStringValue(m_dbname);
-	s += " sslmode=";
-	s += SslModeToString(m_sslMode);
-    if (!m_sslCert.isEmpty())
     {
-		s += " sslcert=";
+        // maybe we should prevent empty parameters from staying in the map?
-		s += escapeConnectionStringValue(m_sslCert);
+        if (!param.second.isEmpty())
-	}
-    if (!m_sslKey.isEmpty())
         {
-		s += " sslkey=";
+            s += param.first % "=" % escapeConnectionStringValue(param.second);
-		s += escapeConnectionStringValue(m_sslKey);
         }
-    if (!m_sslRootCert.isEmpty())
-    {
-		s += " sslrootcrt=";
-		s += escapeConnectionStringValue(m_sslRootCert);
     }
-    if (!m_sslCrl.isEmpty())
+
-    {
+    // s += "host="
-		s += " sslCrl=";
+    //   % escapeConnectionStringValue(m_host)
-		s += escapeConnectionStringValue(m_sslCrl);
+    //   % " port="
-	}
+    //   % QString::number(m_port)
-	s += " client_encoding=utf8";
+    //   % " user="
-	s += " application_name=";
+    //   % escapeConnectionStringValue(m_user);
-	s += escapeConnectionStringValue(m_applicationName);
+    // s += " password=";
+    // s += escapeConnectionStringValue(m_password);
+    // s += " dbname=";
+    // s += escapeConnectionStringValue(m_dbname);
+    // s += " sslmode=";
+    // s += SslModeToString(m_sslMode);
+    // if (!m_sslCert.isEmpty())
+    // {
+    // 	s += " sslcert=";
+    // 	s += escapeConnectionStringValue(m_sslCert);
+    // }
+    // if (!m_sslKey.isEmpty())
+    // {
+    // 	s += " sslkey=";
+    // 	s += escapeConnectionStringValue(m_sslKey);
+    // }
+    // if (!m_sslRootCert.isEmpty())
+    // {
+    // 	s += " sslrootcrt=";
+    // 	s += escapeConnectionStringValue(m_sslRootCert);
+    // }
+    // if (!m_sslCrl.isEmpty())
+    // {
+    // 	s += " sslCrl=";
+    // 	s += escapeConnectionStringValue(m_sslCrl);
+    // }
+    // s += " client_encoding=utf8";
+    // s += " application_name=";
+    // s += escapeConnectionStringValue(m_applicationName);
 
     return s;
 }
 
+void ConnectionConfig::setParameter(const QString &name, const QString &value)
+{
+    if (value.isEmpty())
+    {
+        if (m_parameters.erase(name) > 0)
+        {
+            m_dirty = true;
+        }
+    }
+    else
+    {
+        auto findResult = m_parameters.find(name);
+        if (findResult == m_parameters.end())
+        {
+            m_parameters.insert({name, value});
+            m_dirty = true;
+        }
+        else if (findResult->second != value)
+        {
+            findResult->second = value;
+            m_dirty = true;
+        }
+    }
+
+    //if (name == "sslMode")
+    //    m_sslMode = StringToSslMode(value);
+
+    // Would it better to store everything in the map or keep the specific
+    // fields for common keywords?
+    // Map over fields
+    // + can use foreach
+    // - not strongly typed, but we should be carefull not to restrict ourselves
+    //   the specific fields are more something that helps in the UI
+}
+
+QString ConnectionConfig::getParameter(const QString &name) const
+{
+    auto findResult = m_parameters.find(name);
+    if (findResult == m_parameters.end())
+        return {};
+    return findResult->second;
+}
+
 void ConnectionConfig::writeToEnvironment(QProcessEnvironment &env) const
 {
-	strToEnv(env, "PGHOST", m_host);
+    strToEnv(env, "PGHOST", getParameter(keywords.host));
-	strToEnv(env, "PGHOSTADDR", m_hostaddr);
+    strToEnv(env, "PGHOSTADDR", getParameter(keywords.hostaddr));
-	strToEnv(env, "PGPORT", QString::number(m_port));
+    strToEnv(env, "PGPORT", getParameter(keywords.port));
-	strToEnv(env, "PGDATABASE", m_dbname);
+    strToEnv(env, "PGDATABASE", getParameter(keywords.dbname));
-	strToEnv(env, "PGUSER", m_user);
+    strToEnv(env, "PGUSER", getParameter(keywords.user));
-	strToEnv(env, "PGPASSWORD", m_password);
+    strToEnv(env, "PGPASSWORD", getParameter(keywords.password));
-	strToEnv(env, "PGSSLMODE", SslModeToString(m_sslMode));
+    strToEnv(env, "PGSSLMODE", getParameter(keywords.sslmode));
-	strToEnv(env, "PGSSLCERT", m_sslCert);
+    // strToEnv(env, "PGSSLCERT", m_sslCert);
-	strToEnv(env, "PGSSLKEY", m_sslKey);
+    // strToEnv(env, "PGSSLKEY", m_sslKey);
-	strToEnv(env, "PGSSLROOTCERT", m_sslRootCert);
+    // strToEnv(env, "PGSSLROOTCERT", m_sslRootCert);
-	strToEnv(env, "PGSSLCRL", m_sslCrl);
+    // strToEnv(env, "PGSSLCRL", m_sslCrl);
 	strToEnv(env, "PGSSLCOMPRESSION", "0");
 	strToEnv(env, "PGCONNECT_TIMEOUT", "10");
 	env.insert("PGCLIENTENCODING", "utf8");

pglablib/ConnectionConfig.h

@@ -6,6 +6,7 @@
 #include <QMetaType>
 #include <QUuid>
 #include <QVector>
+#include <map>
 #include <vector>
 #include <string>
 
@@ -74,42 +75,42 @@ public:
 	const QString& name() const;
 
 	void setHost(const QString& host);
-	const QString& host() const;
+    QString host() const;
 
 	void setHostAddr(const QString& v);
-	const QString& hostAddr() const;
+    QString hostAddr() const;
 
 	void setPort(unsigned short port);
 	unsigned short port() const;
 
 	void setUser(const QString& v);
-	const QString& user() const;
+    QString user() const;
 
 	void setPassword(const QString& v);
-	const QString& password() const;
+    QString password() const;
 
 	void setDbname(const QString& v);
-	const QString& dbname() const;
+    QString dbname() const;
 
 	void setSslMode(SslMode m);
 	SslMode sslMode() const;
 
     void setSslCert(const QString& v);
-	const QString& sslCert() const;
+    QString sslCert() const;
 
     void setSslKey(const QString& v);
-	const QString& sslKey() const;
+    QString sslKey() const;
 
     void setSslRootCert(const QString& v);
-	const QString& sslRootCert() const;
+    QString sslRootCert() const;
 
     void setSslCrl(const QString& v);
-	const QString& sslCrl() const;
+    QString sslCrl() const;
 
 //	const char * const * getKeywords() const;
 //	const char * const * getValues() const;
 
-	bool isSameDatabase(const ConnectionConfig &rhs) const;
+    // bool isSameDatabase(const ConnectionConfig &rhs) const;
 
 	void writeToEnvironment(QProcessEnvironment &env) const;
 
@@ -131,26 +132,31 @@ public:
 	 */
 	static QString escapeConnectionStringValue(const QString &value);
 	QString connectionString() const;
+
+    void setParameter(const QString &name, const QString &value);
+    QString getParameter(const QString &name) const;
 private:
 	QUuid m_uuid;
     QString m_name;
-	QString m_host;
+    // QString m_host;
-	QString m_hostaddr;
+    // QString m_hostaddr;
-	uint16_t m_port = 5432;
+    // uint16_t m_port = 5432;
 
-	QString m_user;
+    // QString m_user;
-	QString m_password; ///< Note this is not saved in the DB only the m_encodedPassword is safed.
+    // QString m_password; ///< Note this is not saved in the DB only the m_encodedPassword is safed.
-	QString m_dbname;
+    // QString m_dbname;
 
-	SslMode m_sslMode = SslMode::prefer;
+    // SslMode m_sslMode = SslMode::prefer;
-	QString m_sslCert;
+    // QString m_sslCert;
-	QString m_sslKey;
+    // QString m_sslKey;
-	QString m_sslRootCert;
+    // QString m_sslRootCert;
-	QString m_sslCrl;
+    // QString m_sslCrl;
 
-	QString m_applicationName;
+    // QString m_applicationName;
 	QByteArray m_encodedPassword;
 
+    std::unordered_map<QString, QString> m_parameters;
+
 	bool m_dirty = false;
 	ConnectionGroup* m_group = nullptr;
 

pglablib/pglablib.pro

@@ -88,7 +88,8 @@ SOURCES += \
     catalog/PgAcl.cpp \
     catalog/PgSequence.cpp \
     catalog/PgSequenceContainer.cpp \
-    utils/HumanReadableBytes.cpp
+    utils/HumanReadableBytes.cpp \
+    utils/PostgresqlUrlParser.cpp
 
 HEADERS += \
         Pglablib.h \
@@ -164,7 +165,8 @@ HEADERS += \
     catalog/PgAcl.h \
     catalog/PgSequence.h \
     catalog/PgSequenceContainer.h \
-    utils/HumanReadableBytes.h
+    utils/HumanReadableBytes.h \
+    utils/PostgresqlUrlParser.h
 
 unix {
     target.path = /usr/lib

pglablib/utils/PostgresqlUrlParser.cpp

@@ -0,0 +1,38 @@
+#include "PostgresqlUrlParser.h"
+
+#include <ConnectionConfig.h>
+#include <QUrl>
+#include <QUrlQuery>
+
+//PostgresqlUrlParser::PostgresqlUrlParser() {}
+
+bool TryParsePostgresqlUrl(const QString &urlString, ConnectionConfig &out)
+{
+    const char* shortPrefix = "postgres";
+    const char* longPrefix = "postgresql";
+
+    auto url = QUrl(urlString, QUrl::StrictMode);
+    if (url.scheme() != shortPrefix && url.scheme() != longPrefix)
+        return false;
+
+    out.setUser(url.userName());
+    out.setPassword(url.password());
+    out.setHost(url.host());
+    out.setDbname(url.fileName());
+    out.setPort(url.port());
+
+    QUrlQuery query(url.query());
+    for (auto && param : query.queryItems())
+    {
+        if (param.first == "ssl" && param.second == "true") {
+            out.setSslMode(SslMode::require);
+        }
+        else
+        {
+            out.setParameter(param.first, param.second);
+        }
+    }
+
+    return true;
+}
+

pglablib/utils/PostgresqlUrlParser.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <QString>
+
+
+class ConnectionConfig;
+
+bool TryParsePostgresqlUrl(const QString &urlString, ConnectionConfig &out);
+
+// class PostgresqlUrlParser
+// {
+// public:
+//     PostgresqlUrlParser();
+
+//};

tests/pglabtests/pglabtests.pro

@@ -19,6 +19,7 @@ SOURCES +=     main.cpp \
     tst_ConvertToMultiLineCString.cpp \
     tst_ExplainJsonParser.cpp \
     tst_HumanReadableBytes.cpp \
+    tst_TryParsePostgresqlUrl.cpp \
     tst_escapeConnectionStringValue.cpp \
     tst_expected.cpp \
     tst_SqlLexer.cpp \

tests/pglabtests/tst_TryParsePostgresqlUrl.cpp

@@ -0,0 +1,20 @@
+#include <gtest/gtest.h>
+#include <gmock/gmock-matchers.h>
+#include <ConnectionConfig.h>
+#include "utils/PostgresqlUrlParser.h"
+#include "PrintTo_Qt.h"
+
+using namespace testing;
+
+TEST(TryParsePostgresqlUrl, emptyInput)
+{
+    QString urlString = "postgresql://user:secret@localhost:5433/otherdb?connect_timeout=10&application_name=myapp";
+    ConnectionConfig config;
+    bool result = TryParsePostgresqlUrl(urlString, config);
+    ASSERT_TRUE(result);
+    ASSERT_THAT(config.user(), Eq("user"));
+    ASSERT_THAT(config.password(), Eq("secret"));
+    ASSERT_THAT(config.host(), Eq("localhost"));
+    ASSERT_THAT(config.dbname(), Eq("otherdb"));
+    ASSERT_THAT(config.port(), Eq(5433));
+}