Fix authorization for LDAP users

Modified the code to make an asynchronous call to GetUserInfo to get
the user role for authorization.

For local users, DBus matches are used to store user role map hot in
memory. Hence, bmcweb has to know whether a user is a local user or
LDAP user to get the role. To avoid this, removed the existing DBus
matches and modified the code to call GetUserInfo to get the role of
local users as well as LDAP users.

Tested:
-   Created a local user having admin privilege and verified that he is
    able to restart the system
    /redfish/v1/Systems/system/Actions/ComputerSystem.Reset
        -d '{"ResetType": "GracefulRestart"}'
-   Created a local user having user privilege and verified that he is
    unauthorized to restart the system
    /redfish/v1/Systems/system/Actions/ComputerSystem.Reset
        -d '{"ResetType": "GracefulRestart"}'
-   Created a remote user having admin privilege and verified that he is
    able to restart the system
    /redfish/v1/Systems/system/Actions/ComputerSystem.Reset
        -d '{"ResetType": "GracefulRestart"}'
-   Created a remote user having user privilege and verified that he is
    unauthorized to restart the system
    /redfish/v1/Systems/system/Actions/ComputerSystem.Reset
        -d '{"ResetType": "GracefulRestart"}'
-   Tested Redfish ConfigureSelf privilege

Signed-off-by: RAJESWARAN THILLAIGOVINDAN <rajeswgo@in.ibm.com>
Change-Id: Ic3e46a0c0aff2cf456c98048350e58e302011c57

1 files changed, 0 insertions, 244 deletions

diff --git a/include/sessions.hpp b/include/sessions.hpp
index f461521558..f197bff2de 100644
--- a/include/sessions.hpp
+++ b/include/sessions.hpp
@@ -31,250 +31,6 @@ enum class PersistenceType
     SINGLE_REQUEST // User times out once this request is completed.
 };
 
-constexpr char const* userService = "xyz.openbmc_project.User.Manager";
-constexpr char const* userObjPath = "/xyz/openbmc_project/user";
-constexpr char const* userAttrIface = "xyz.openbmc_project.User.Attributes";
-constexpr char const* dbusPropertiesIface = "org.freedesktop.DBus.Properties";
-
-struct UserRoleMap
-{
-    using GetManagedPropertyType =
-        boost::container::flat_map<std::string,
-                                   std::variant<std::string, bool>>;
-
-    using InterfacesPropertiesType =
-        boost::container::flat_map<std::string, GetManagedPropertyType>;
-
-    using GetManagedObjectsType = std::vector<
-        std::pair<sdbusplus::message::object_path, InterfacesPropertiesType>>;
-
-    static UserRoleMap& getInstance()
-    {
-        static UserRoleMap userRoleMap;
-        return userRoleMap;
-    }
-
-    UserRoleMap(const UserRoleMap&) = delete;
-    UserRoleMap& operator=(const UserRoleMap&) = delete;
-
-    std::string getUserRole(std::string_view name)
-    {
-        auto it = roleMap.find(std::string(name));
-        if (it == roleMap.end())
-        {
-            BMCWEB_LOG_ERROR << "User name " << name
-                             << " is not found in the UserRoleMap.";
-            return "";
-        }
-        return it->second;
-    }
-
-    std::string
-        extractUserRole(const InterfacesPropertiesType& interfacesProperties)
-    {
-        auto iface = interfacesProperties.find(userAttrIface);
-        if (iface == interfacesProperties.end())
-        {
-            return {};
-        }
-
-        auto& properties = iface->second;
-        auto property = properties.find("UserPrivilege");
-        if (property == properties.end())
-        {
-            return {};
-        }
-
-        const std::string* role = std::get_if<std::string>(&property->second);
-        if (role == nullptr)
-        {
-            BMCWEB_LOG_ERROR << "UserPrivilege property value is null";
-            return {};
-        }
-
-        return *role;
-    }
-
-  private:
-    void userAdded(sdbusplus::message::message& m)
-    {
-        sdbusplus::message::object_path objPath;
-        InterfacesPropertiesType interfacesProperties;
-
-        try
-        {
-            m.read(objPath, interfacesProperties);
-        }
-        catch (const sdbusplus::exception::SdBusError& e)
-        {
-            BMCWEB_LOG_ERROR << "Failed to parse user add signal."
-                             << "ERROR=" << e.what()
-                             << "REPLY_SIG=" << m.get_signature();
-            return;
-        }
-        BMCWEB_LOG_DEBUG << "obj path = " << objPath.str;
-
-        std::size_t lastPos = objPath.str.rfind("/");
-        if (lastPos == std::string::npos)
-        {
-            return;
-        };
-
-        std::string name = objPath.str.substr(lastPos + 1);
-        std::string role = this->extractUserRole(interfacesProperties);
-
-        // Insert the newly added user name and the role
-        auto res = roleMap.emplace(name, role);
-        if (res.second == false)
-        {
-            BMCWEB_LOG_ERROR << "Insertion of the user=\"" << name
-                             << "\" in the roleMap failed.";
-            return;
-        }
-    }
-
-    void userRemoved(sdbusplus::message::message& m)
-    {
-        sdbusplus::message::object_path objPath;
-
-        try
-        {
-            m.read(objPath);
-        }
-        catch (const sdbusplus::exception::SdBusError& e)
-        {
-            BMCWEB_LOG_ERROR << "Failed to parse user delete signal.";
-            BMCWEB_LOG_ERROR << "ERROR=" << e.what()
-                             << "REPLY_SIG=" << m.get_signature();
-            return;
-        }
-
-        BMCWEB_LOG_DEBUG << "obj path = " << objPath.str;
-
-        std::size_t lastPos = objPath.str.rfind("/");
-        if (lastPos == std::string::npos)
-        {
-            return;
-        };
-
-        // User name must be atleast 1 char in length.
-        if ((lastPos + 1) >= objPath.str.length())
-        {
-            return;
-        }
-
-        std::string name = objPath.str.substr(lastPos + 1);
-
-        roleMap.erase(name);
-    }
-
-    void userPropertiesChanged(sdbusplus::message::message& m)
-    {
-        std::string interface;
-        GetManagedPropertyType changedProperties;
-        m.read(interface, changedProperties);
-        const std::string path = m.get_path();
-
-        BMCWEB_LOG_DEBUG << "Object Path = \"" << path << "\"";
-
-        std::size_t lastPos = path.rfind("/");
-        if (lastPos == std::string::npos)
-        {
-            return;
-        };
-
-        // User name must be at least 1 char in length.
-        if ((lastPos + 1) == path.length())
-        {
-            return;
-        }
-
-        std::string user = path.substr(lastPos + 1);
-
-        BMCWEB_LOG_DEBUG << "User Name = \"" << user << "\"";
-
-        auto index = changedProperties.find("UserPrivilege");
-        if (index == changedProperties.end())
-        {
-            return;
-        }
-
-        const std::string* role = std::get_if<std::string>(&index->second);
-        if (role == nullptr)
-        {
-            return;
-        }
-        BMCWEB_LOG_DEBUG << "Role = \"" << *role << "\"";
-
-        auto it = roleMap.find(user);
-        if (it == roleMap.end())
-        {
-            BMCWEB_LOG_ERROR << "User Name = \"" << user
-                             << "\" is not found. But, received "
-                                "propertiesChanged signal";
-            return;
-        }
-        it->second = *role;
-    }
-
-    UserRoleMap() :
-        userAddedSignal(
-            *crow::connections::systemBus,
-            sdbusplus::bus::match::rules::interfacesAdded(userObjPath),
-            [this](sdbusplus::message::message& m) {
-                BMCWEB_LOG_DEBUG << "User Added";
-                this->userAdded(m);
-            }),
-        userRemovedSignal(
-            *crow::connections::systemBus,
-            sdbusplus::bus::match::rules::interfacesRemoved(userObjPath),
-            [this](sdbusplus::message::message& m) {
-                BMCWEB_LOG_DEBUG << "User Removed";
-                this->userRemoved(m);
-            }),
-        userPropertiesChangedSignal(
-            *crow::connections::systemBus,
-            sdbusplus::bus::match::rules::path_namespace(userObjPath) +
-                sdbusplus::bus::match::rules::type::signal() +
-                sdbusplus::bus::match::rules::member("PropertiesChanged") +
-                sdbusplus::bus::match::rules::interface(dbusPropertiesIface) +
-                sdbusplus::bus::match::rules::argN(0, userAttrIface),
-            [this](sdbusplus::message::message& m) {
-                BMCWEB_LOG_DEBUG << "Properties Changed";
-                this->userPropertiesChanged(m);
-            })
-    {
-        crow::connections::systemBus->async_method_call(
-            [this](boost::system::error_code ec,
-                   GetManagedObjectsType& managedObjects) {
-                if (ec)
-                {
-                    BMCWEB_LOG_DEBUG << "User manager call failed, ignoring";
-                    return;
-                }
-
-                for (auto& managedObj : managedObjects)
-                {
-                    std::size_t lastPos = managedObj.first.str.rfind("/");
-                    if (lastPos == std::string::npos)
-                    {
-                        continue;
-                    };
-                    std::string name = managedObj.first.str.substr(lastPos + 1);
-                    std::string role = extractUserRole(managedObj.second);
-                    roleMap.emplace(name, role);
-                }
-            },
-            userService, userObjPath, "org.freedesktop.DBus.ObjectManager",
-            "GetManagedObjects");
-    }
-
-    boost::container::flat_map<std::string, std::string> roleMap;
-    sdbusplus::bus::match_t userAddedSignal;
-    sdbusplus::bus::match_t userRemovedSignal;
-    sdbusplus::bus::match_t userPropertiesChangedSignal;
-};
-
 struct UserSession
 {
     std::string uniqueId;