Add classes: Logic, App_t. Add journal loging support

Class Logic has only dbus callbacks implemetation (package-manager,
connman), beside it it's empty implementation.

Verification:
1) Build cert-checker with debug, and install on emulator.
2) Run cert-checker - do it in emulator UI console (not via ssh).
3) On other console in emulator UI run command:
   journalctl -f | grep cert-checker
   - to see the logs.
4) On third console turn on and off offline mode on device:
   /usr/sbin/connmanctl enable offline
   /usr/sbin/connmanctl disable offline
5) You should see logs from cert-checker in journal
6) Install any app to check if package-manager signal works in cert-checker:
   pkgcmd -i -t wgt -p /usr/share/widget_demo/go.wgt -q
7) Check if logs are present.

Change-Id: Ic7d6fc4f47ca9ced18744ad8a77f8516b75304e3

8 files changed, 614 insertions, 0 deletions

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
new file mode 100644
index 0000000..94a8b74
--- /dev/null
+++ b/src/CMakeLists.txt
@@ -0,0 +1,34 @@
+PKG_CHECK_MODULES(CERT_CHECKER_DEP
+    REQUIRED
+    dbus-1
+    dbus-glib-1
+    glib-2.0
+    gio-2.0
+    capi-appfw-package-manager
+    notification
+    libsystemd-journal
+    )
+
+SET(CERT_CHECKER_SRC_PATH ${PROJECT_SOURCE_DIR}/src)
+
+SET(CERT_CHECKER_SOURCES
+    ${CERT_CHECKER_SRC_PATH}/cert-checker.cpp
+    ${CERT_CHECKER_SRC_PATH}/app.cpp
+    ${CERT_CHECKER_SRC_PATH}/logic.cpp
+    # logs
+    ${CERT_CHECKER_SRC_PATH}/log/log.cpp
+    )
+
+INCLUDE_DIRECTORIES(SYSTEM
+    ${CERT_CHECKER_DEP_INCLUDE_DIRS}
+    ${CERT_CHECKER_SRC_PATH}/include/
+    ${CERT_CHECKER_SRC_PATH}/log/
+    )
+
+ADD_EXECUTABLE(${TARGET_CERT_CHECKER} ${CERT_CHECKER_SOURCES})
+
+TARGET_LINK_LIBRARIES(${TARGET_CERT_CHECKER}
+    ${CERT_CHECKER_DEP_LIBRARIES}
+    )
+
+INSTALL(TARGETS ${TARGET_CERT_CHECKER} DESTINATION ${BINDIR})
diff --git a/src/app.cpp b/src/app.cpp
new file mode 100644
index 0000000..575cf03
--- /dev/null
+++ b/src/app.cpp
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2015 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+/*
+ * @file        app.cpp
+ * @author      Janusz Kozerski (j.kozerski@samsung.com)
+ * @version     1.0
+ * @brief       This file is the implementation of app struct
+ */
+
+#include <sstream>
+#include <string>
+#include <vector>
+#include <sys/types.h>
+
+#include <app.h>
+
+namespace CCHECKER {
+
+app_t::app_t(void):
+        check_id(-1),   // -1 as invalid check_id - assume that in database
+                        // all check_ids will be positive
+        uid((uid_t)-1), // (uid_t)-1 (0xFF) is defined to be invalid uid. According
+                        // to chown manual page, you cannot change file group of owner
+                        // to (uid_t)-1, so we'll use it as initial, invalid value.
+        verified(verified_t::UNKNOWN)
+{}
+
+std::ostream & operator<< (std::ostream &out, const app_t &app)
+{
+    out << "app: " << app.app_id << ", pkg: " << app.pkg_id << ", uid: " << app.uid;
+    return out;
+}
+
+std::string app_t::str() const
+{
+    std::stringstream ss;
+    ss << this;
+    return ss.str();
+}
+
+} //CCHECKER
diff --git a/src/cert-checker.cpp b/src/cert-checker.cpp
new file mode 100644
index 0000000..984e41e
--- /dev/null
+++ b/src/cert-checker.cpp
@@ -0,0 +1,47 @@
+/*
+ *  Copyright (c) 2015 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License
+ */
+/*
+ * @file        cert-checker.cpp
+ * @author      Janusz Kozerski (j.kozerski@samsung.com)
+ * @version     1.0
+ * @brief       Cert-checker daemon main loop.
+ */
+
+#include <glib.h>
+
+#include <log.h>
+#include <logic.h>
+
+using namespace CCHECKER;
+
+int main(void)
+{
+    LogDebug("Cert-checker start!");
+
+    GMainLoop *main_loop = g_main_loop_new(NULL, FALSE);
+
+    Logic logic;
+    if (logic.setup() != NO_ERROR) {
+        LogError("Cannot setup logic. Exit cert-checker!");
+        return -1;
+    }
+
+    LogDebug("Running the main loop");
+    g_main_loop_run(main_loop);
+
+    LogDebug("Cert-checker exit!");
+    return 0;
+}
diff --git a/src/include/app.h b/src/include/app.h
new file mode 100644
index 0000000..7452714
--- /dev/null
+++ b/src/include/app.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2015 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+/*
+ * @file        app.h
+ * @author      Janusz Kozerski (j.kozerski@samsung.com)
+ * @version     1.0
+ * @brief       This file is the implementation of app struct
+ */
+#ifndef CCHECKER_APP_H
+#define CCHECKER_APP_H
+
+#include <string>
+#include <vector>
+#include <sys/types.h>
+
+namespace CCHECKER {
+
+struct app_t {
+    enum class verified_t : int {
+        NO      = 0,
+        YES     = 1,
+        UNKNOWN = 2
+    };
+
+    int32_t                  check_id;
+    std::string              app_id;
+    std::string              pkg_id;
+    uid_t                    uid;
+    std::vector<std::string> certificates;
+    verified_t               verified;
+
+    app_t(void);
+    std::string str(void) const;
+};
+
+} //CCHECKER
+
+#endif //CCHECKER_APP_H
diff --git a/src/include/logic.h b/src/include/logic.h
new file mode 100644
index 0000000..c2b793d
--- /dev/null
+++ b/src/include/logic.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2015 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+/*
+ * @file        logic.h
+ * @author      Janusz Kozerski (j.kozerski@samsung.com)
+ * @version     1.0
+ * @brief       This file is the implementation of SQL queries
+ */
+
+#ifndef CCHECKER_LOGIC_H
+#define CCHECKER_LOGIC_H
+
+#include <gio/gio.h>
+#include <package_manager.h>
+#include <string>
+#include <vector>
+
+#include <app.h>
+
+namespace CCHECKER {
+
+enum error_t {
+    NO_ERROR,
+    REGISTER_CALLBACK_ERROR,
+    DBUS_ERROR,
+    PACKAGE_MANAGER_ERROR
+};
+
+class Logic {
+    public:
+        Logic(void);
+        virtual ~Logic(void);
+        int setup();
+        static void pkg_manager_callback(
+                const char *type,
+                const char *package,
+                package_manager_event_type_e eventType,
+                package_manager_event_state_e eventState,
+                int progress,
+                package_manager_error_e error,
+                void *logic_ptr);
+        static void connman_callback(GDBusProxy *proxy,
+                gchar      *sender_name,
+                gchar      *signal_name,
+                GVariant   *parameters,
+                void *logic_ptr);
+
+    private:
+        //TODO: implement missing members
+
+        void check_ocsp(app_t &app);
+        void add_ocsp_url(const std::string &issuer, const std::string &url);
+        void pkgmanager_uninstall(const app_t &app);
+        void get_certs_from_signature(const std::string &signature, std::vector<std::string> &cert);
+        error_t load_database_to_buffer();
+
+        error_t register_connman_signal_handler ();
+
+        bool m_is_online;
+        package_manager_h m_request;
+        GDBusProxy *m_proxy;
+
+};
+
+} // CCHECKER
+
+#endif //CCHECKER_LOGIC_H
diff --git a/src/log/log.cpp b/src/log/log.cpp
new file mode 100644
index 0000000..ced0fe9
--- /dev/null
+++ b/src/log/log.cpp
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2015 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+/**
+ * @file        log.cpp
+ * @author      Janusz Kozerski <j.kozerski@samsung.com>
+ * @brief       This file declares class for ask user window
+ */
+
+#include <stdexcept>
+#include <systemd/sd-journal.h>
+
+void JournalLog(int logLevel,
+                const char *message,
+                const char *fileName,
+                int line,
+                const char *function)
+{
+    try {
+        sd_journal_send("PRIORITY=%d", logLevel,
+                "CODE_FILE=%s", fileName,
+                "CODE_FUNC=%s", function,
+                "CODE_LINE=%d", line,
+                // add file, line & function info to log message
+                "MESSAGE=[%s:%d] %s(): %s", fileName, line, function, message,
+                NULL);
+    } catch (const std::out_of_range&) {
+        sd_journal_send(
+                "PRIORITY=%d", LOG_ERR,
+                "CODE_FILE=%s", fileName,
+                "CODE_FUNC=%s", function,
+                "CODE_LINE=%d", line,
+                // add file, line & function info to log message
+                "MESSAGE=[%s:%d] %s(): Unsupported log level %d", fileName, line, function, logLevel,
+                NULL);
+    }
+}
diff --git a/src/log/log.h b/src/log/log.h
new file mode 100644
index 0000000..d4efcdc
--- /dev/null
+++ b/src/log/log.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2015 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+/**
+ * @file        log.h
+ * @author      Janusz Kozerski <j.kozerski@samsung.com>
+ * @brief       Project log framework - logs into journal
+ */
+
+#include <sstream>
+#include <systemd/sd-journal.h>
+
+#ifndef CERT_CHECKER_LOG_H
+#define CERT_CHECKER_LOG_H
+
+void JournalLog(int logLevel, const char *message, const char *fileName,
+                int line, const char *function);
+
+/*
+ * Replacement low overhead null logging class
+ */
+class NullStream
+{
+    public:
+        NullStream() {}
+
+        template <typename T>
+        NullStream& operator<<(const T&)
+        {
+            return *this;
+        }
+};
+
+/* avoid warnings about unused variables */
+#define DPL_MACRO_DUMMY_LOGGING(message, level) \
+    do {                                        \
+        NullStream ns;                          \
+        ns << message;                          \
+    } while (0)
+
+#define CERT_CHECKER_LOG(message, level)         \
+do                                               \
+{                                                \
+    std::ostringstream platformLog;              \
+    platformLog << message;                      \
+    JournalLog(level,                            \
+               platformLog.str().c_str(),        \
+               __FILE__,                         \
+               __LINE__,                         \
+               __FUNCTION__);                    \
+} while (0)
+
+/* Errors must be always logged. */
+#define  LogError(message)          \
+    CERT_CHECKER_LOG(message, LOG_ERR)
+
+#ifdef BUILD_TYPE_DEBUG
+    #define LogDebug(message)       \
+        CERT_CHECKER_LOG(message, LOG_DEBUG)
+    #define LogInfo(message)        \
+        CERT_CHECKER_LOG(message, LOG_INFO)
+    #define LogWarning(message)     \
+        CERT_CHECKER_LOG(message, LOG_WARNING)
+#else
+    #define LogDebug(message)       \
+        DPL_MACRO_DUMMY_LOGGING(message, LOG_DEBUG)
+    #define LogInfo(message)        \
+        DPL_MACRO_DUMMY_LOGGING(message, LOG_INFO)
+    #define LogWarning(message)     \
+        DPL_MACRO_DUMMY_LOGGING(message, LOG_WARNING)
+#endif // BUILD_TYPE_DEBUG
+
+#endif //CERT_CHECKER_LOG_H
+
diff --git a/src/logic.cpp b/src/logic.cpp
new file mode 100644
index 0000000..10ed0fd
--- /dev/null
+++ b/src/logic.cpp
@@ -0,0 +1,213 @@
+/*
+ * Copyright (c) 2015 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+/*
+ * @file        logic.cpp
+ * @author      Janusz Kozerski (j.kozerski@samsung.com)
+ * @version     1.0
+ * @brief       This file is the implementation of SQL queries
+ */
+
+#include <logic.h>
+#include <log.h>
+
+namespace {
+
+const char * eventTypeStr(package_manager_event_type_e type) {
+    if (type == PACKAGE_MANAGER_EVENT_TYPE_INSTALL)
+        return "PACKAGE_MANAGER_EVENT_TYPE_INSTALL";
+    if (type == PACKAGE_MANAGER_EVENT_TYPE_UNINSTALL)
+        return "PACKAGE_MANAGER_EVENT_TYPE_UNINSTALL";
+    if (type == PACKAGE_MANAGER_EVENT_TYPE_UPDATE)
+        return "PACKAGE_MANAGER_EVENT_TYPE_UPDATE";
+    return "UNKNOWN";
+}
+
+const char * eventStateStr(package_manager_event_state_e type) {
+    if (type == PACKAGE_MANAGER_EVENT_STATE_STARTED)
+        return "PACKAGE_MANAGER_EVENT_STATE_STARTED";
+    if (type == PACKAGE_MANAGER_EVENT_STATE_PROCESSING)
+        return "PACKAGE_MANAGER_EVENT_STATE_PROCESSING";
+    if (type == PACKAGE_MANAGER_EVENT_STATE_COMPLETED)
+        return "PACKAGE_MANAGER_EVENT_STATE_COMPLETED";
+    if (type == PACKAGE_MANAGER_EVENT_STATE_FAILED)
+        return "PACKAGE_MANAGER_EVENT_STATE_FAILED";
+    return "UNKNOWN";
+}
+} //anonymus
+
+
+namespace CCHECKER {
+
+Logic::~Logic(void)
+{
+    LogDebug("Cert-checker cleaning.");
+    if (m_proxy)
+        g_object_unref(m_proxy);
+    package_manager_destroy(m_request);
+}
+
+Logic::Logic(void) :
+        m_is_online(false),
+        m_proxy(NULL)
+{}
+
+int Logic::setup()
+{
+    // Add package manager callback
+    int ret = package_manager_create(&m_request);
+    if (ret != PACKAGE_MANAGER_ERROR_NONE) {
+        LogError("package_manager_create error: " << ret);
+        return PACKAGE_MANAGER_ERROR;
+    }
+
+    LogDebug("register installedApp event callback start");
+    ret = package_manager_set_event_cb(m_request, Logic::pkg_manager_callback, this);
+    if (PACKAGE_MANAGER_ERROR_NONE != ret) {
+        LogError("Error in package_manager_set_event_cb: " << ret);
+        return REGISTER_CALLBACK_ERROR;
+    }
+    LogDebug("register installedApp event callback success");
+
+    // Add connman callback
+    LogDebug("register connman event callback start");
+    if (register_connman_signal_handler() != NO_ERROR) {
+        LogError("Error in register_connman_signal_handler");
+        return REGISTER_CALLBACK_ERROR;
+    }
+    LogDebug("register connman event callback success");
+
+    return load_database_to_buffer();
+}
+
+error_t Logic::register_connman_signal_handler(void)
+{
+    GError *error = NULL;
+    GDBusProxyFlags flags = G_DBUS_PROXY_FLAGS_NONE;
+
+    // Obtain a connection to the System Bus
+    m_proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM,
+            flags,
+            NULL, /* GDBusInterfaceInfo */
+            "net.connman",
+            "/",
+            "net.connman.Manager",
+            NULL, /* GCancellable */
+            &error);
+
+    if (m_proxy == NULL) {
+        if (error) {
+            LogError("Error creating D-Bus proxy: " << error->message);
+            g_error_free (error);
+        }
+        else {
+            LogError("Error creating D-Bus proxy. Unknown error");
+        }
+        return DBUS_ERROR;
+    }
+
+    // Connect to g-signal to receive signals from proxy
+    if (g_signal_connect (m_proxy, "g-signal", G_CALLBACK (Logic::connman_callback), this) < 1) {
+        LogError("g_signal_connect error while connecting connman signal");
+        return REGISTER_CALLBACK_ERROR;
+    }
+
+    return NO_ERROR;
+}
+
+void Logic::pkg_manager_callback(
+        const char *type,
+        const char *package,
+        package_manager_event_type_e eventType,
+        package_manager_event_state_e eventState,
+        int progress,
+        package_manager_error_e error,
+        void *logic_ptr)
+{
+    LogDebug("---- packageInstalledEventCallback ----\n");
+    LogDebug("Type: " << type << ", package: " << package << ", Event type: " <<
+            eventTypeStr(eventType) << ", Event state: " << eventStateStr(eventState) <<
+            ", progress: " << progress <<", error: " << error);
+    Logic *logic = static_cast<Logic*>(logic_ptr);
+
+    if (eventType != PACKAGE_MANAGER_EVENT_TYPE_INSTALL||
+    eventState != PACKAGE_MANAGER_EVENT_STATE_COMPLETED ||
+    error != PACKAGE_MANAGER_ERROR_NONE ||
+    package == NULL) {
+        LogDebug("PackageInstalled Callback error or Invalid Param");
+    } else {
+        LogDebug("PackageInstalled Callback. Instalation of: " << package <<
+                ", error: " << error << ", progress: " << progress);
+        // TODO: Add event to queue here
+        (void) logic;
+    }
+}
+
+void Logic::connman_callback(GDBusProxy */*proxy*/,
+                             gchar      */*sender_name*/,
+                             gchar      *signal_name,
+                             GVariant   *parameters,
+                             void *logic_ptr)
+{
+    std::string signal_name_str = std::string(signal_name);
+    if (signal_name_str != "PropertyChanged") {
+        // Invalid param. Nothing to do here.
+        return;
+    }
+
+    gchar *parameters_g = g_variant_print(parameters, TRUE);
+    std::string params_str = std::string(parameters_g);
+    g_free (parameters_g);
+
+    Logic *logic = static_cast<Logic*> (logic_ptr);
+
+    if (params_str == "('State', <'online'>)") {
+        LogDebug("Device online");
+        logic->m_is_online = true;
+    }
+    else if (params_str == "('State', <'offline'>)") {
+        LogDebug("Device offline");
+        logic->m_is_online = false;
+    }
+}
+
+void Logic::check_ocsp(app_t &app)
+{
+    (void)app;
+}
+
+void Logic::add_ocsp_url(const std::string &issuer, const std::string &url)
+{
+    (void)issuer;
+    (void)url;
+}
+
+void Logic::pkgmanager_uninstall(const app_t &app)
+{
+    (void)app;
+}
+
+void Logic::get_certs_from_signature(const std::string &signature, std::vector<std::string> &cert)
+{
+    (void)signature;
+    (void)cert;
+}
+
+error_t Logic::load_database_to_buffer()
+{
+    return error_t::NO_ERROR;
+}
+
+} //CCHECKER