Initial services implementation added

diff --git a/projects/stargazer/services_impl.cpp b/projects/stargazer/services_impl.cpp
new file mode 100644 (file)
index 0000000..400b34b
--- /dev/null
+++ b/projects/stargazer/services_impl.cpp
@@ -0,0 +1,307 @@
+/*
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+ *    Author : Maxim Mamontov <faust@stargazer.dp.ua>
+ */
+
+#include <cerrno>
+#include <cassert>
+#include <algorithm>
+
+#include "stg/admin.h"
+#include "stg/common.h"
+#include "services_impl.h"
+
+//-----------------------------------------------------------------------------
+SERVICES_IMPL::SERVICES_IMPL(STORE * st)
+    : SERVICES(),
+      data(),
+      store(st),
+      WriteServLog(GetStgLogger()),
+      searchDescriptors(),
+      handle(0)
+{
+pthread_mutex_init(&mutex, NULL);
+ReadServices();
+}
+//-----------------------------------------------------------------------------
+int SERVICES_IMPL::Add(const SERVICE_CONF & service, const ADMIN * admin)
+{
+STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+const PRIV * priv = admin->GetPriv();
+
+if (!priv->adminChg)
+    {
+    string s = admin->GetLogStr() + " Add administrator \'" + login + "\'. Access denied.";
+    strError = "Access denied.";
+    WriteServLog(s.c_str());
+    return -1;
+    }
+
+ADMIN_IMPL adm(0, login, "");
+admin_iter ai(find(data.begin(), data.end(), adm));
+
+if (ai != data.end())
+    {
+    strError = "Administrator \'" + login + "\' cannot not be added. Administrator already exist.";
+    WriteServLog("%s %s", admin->GetLogStr().c_str(), strError.c_str());
+
+    return -1;
+    }
+
+data.push_back(adm);
+
+if (store->AddAdmin(login) == 0)
+    {
+    WriteServLog("%s Administrator \'%s\' added.",
+                 admin->GetLogStr().c_str(), login.c_str());
+    return 0;
+    }
+
+strError = "Administrator \'" + login + "\' was not added. Error: " + store->GetStrError();
+WriteServLog("%s %s", admin->GetLogStr().c_str(), strError.c_str());
+
+return -1;
+}
+//-----------------------------------------------------------------------------
+int SERVICES_IMPL::Del(const string & login, const ADMIN * admin)
+{
+STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+ADMIN_IMPL adm(0, login, "");
+const PRIV * priv = admin->GetPriv();
+
+if (!priv->adminChg)
+    {
+    string s = admin->GetLogStr() + " Delete administrator \'" + login + "\'. Access denied.";
+    strError = "Access denied.";
+    WriteServLog(s.c_str());
+    return -1;
+    }
+
+admin_iter ai(find(data.begin(), data.end(), adm));
+
+if (ai == data.end())
+    {
+    strError = "Administrator \'" + login + "\' cannot be deleted. Administrator does not exist.";
+    WriteServLog("%s %s", admin->GetLogStr().c_str(), strError.c_str());
+    return -1;
+    }
+
+map<int, const_admin_iter>::iterator si;
+si = searchDescriptors.begin();
+while (si != searchDescriptors.end())
+    {
+    if (si->second == ai)
+        (si->second)++;
+    si++;
+    }
+
+data.remove(*ai);
+if (store->DelAdmin(login) < 0)
+    {
+    strError = "Administrator \'" + login + "\' was not deleted. Error: " + store->GetStrError();
+    WriteServLog("%s %s", admin->GetLogStr().c_str(), strError.c_str());
+
+    return -1;
+    }
+
+WriteServLog("%s Administrator \'%s\' deleted.", admin->GetLogStr().c_str(), login.c_str());
+return 0;
+}
+//-----------------------------------------------------------------------------
+int SERVICES_IMPL::Change(const ADMIN_CONF & ac, const ADMIN * admin)
+{
+STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+const PRIV * priv = admin->GetPriv();
+
+if (!priv->adminChg)
+    {
+    string s = admin->GetLogStr() + " Change administrator \'" + ac.login + "\'. Access denied.";
+    strError = "Access denied.";
+    WriteServLog(s.c_str());
+    return -1;
+    }
+
+ADMIN_IMPL adm(0, ac.login, "");
+admin_iter ai(find(data.begin(), data.end(), adm));
+
+if (ai == data.end())
+    {
+    strError = "Administrator \'" + ac.login + "\' cannot be changed " + ". Administrator does not exist.";
+    WriteServLog("%s %s", admin->GetLogStr().c_str(), strError.c_str());
+    return -1;
+    }
+
+*ai = ac;
+if (store->SaveAdmin(ac))
+    {
+    WriteServLog("Cannot write admin %s.", ac.login.c_str());
+    WriteServLog("%s", store->GetStrError().c_str());
+    return -1;
+    }
+
+WriteServLog("%s Administrator \'%s\' changed.",
+             admin->GetLogStr().c_str(), ac.login.c_str());
+
+return 0;
+}
+//-----------------------------------------------------------------------------
+int SERVICES_IMPL::ReadAdmins()
+{
+STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+vector<string> adminsList;
+if (store->GetAdminsList(&adminsList) < 0)
+    {
+    WriteServLog(store->GetStrError().c_str());
+    return -1;
+    }
+
+for (unsigned int i = 0; i < adminsList.size(); i++)
+    {
+    ADMIN_CONF ac(0, adminsList[i], "");
+
+    if (store->RestoreAdmin(&ac, adminsList[i]))
+        {
+        WriteServLog(store->GetStrError().c_str());
+        return -1;
+        }
+
+    data.push_back(ADMIN_IMPL(ac));
+    }
+return 0;
+}
+//-----------------------------------------------------------------------------
+void SERVICES_IMPL::PrintAdmins() const
+{
+STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+const_admin_iter ai(data.begin());
+while (ai != data.end())
+    {
+    ai->Print();
+    ai++;
+    }
+}
+//-----------------------------------------------------------------------------
+bool SERVICES_IMPL::FindAdmin(const string & l, ADMIN ** admin)
+{
+assert(admin != NULL && "Pointer to admin is not null");
+
+STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+if (data.empty())
+    {
+    printfd(__FILE__, "no admin in system!\n");
+    *admin = &noAdmin;
+    return false;
+    }
+
+ADMIN_IMPL adm(0, l, "");
+admin_iter ai(find(data.begin(), data.end(), adm));
+
+if (ai != data.end())
+    {
+    *admin = &(*ai);
+    return false;
+    }
+
+return true;
+}
+//-----------------------------------------------------------------------------
+bool SERVICES_IMPL::AdminExists(const string & login) const
+{
+STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+if (data.empty())
+    {
+    printfd(__FILE__, "no admin in system!\n");
+    return true;
+    }
+
+ADMIN_IMPL adm(0, login, "");
+const_admin_iter ai(find(data.begin(), data.end(), adm));
+
+if (ai != data.end())
+    return true;
+
+return false;
+}
+//-----------------------------------------------------------------------------
+bool SERVICES_IMPL::AdminCorrect(const string & login, const std::string & password, ADMIN ** admin)
+{
+STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+if (data.empty())
+    {
+    printfd(__FILE__, "no admin in system!\n");
+    return true;
+    }
+
+ADMIN_IMPL adm(0, login, "");
+admin_iter ai(find(data.begin(), data.end(), adm));
+
+if (ai == data.end())
+    {
+    return false;
+    }
+
+if (ai->GetPassword() != password)
+    {
+    return false;
+    }
+
+*admin = &(*ai);
+
+return true;
+}
+//-----------------------------------------------------------------------------
+int SERVICES_IMPL::OpenSearch() const
+{
+STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+handle++;
+searchDescriptors[handle] = data.begin();
+return handle;
+}
+//-----------------------------------------------------------------------------
+int SERVICES_IMPL::SearchNext(int h, ADMIN_CONF * ac) const
+{
+STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+if (searchDescriptors.find(h) == searchDescriptors.end())
+    {
+    WriteServLog("SERVICES. Incorrect search handle.");
+    return -1;
+    }
+
+if (searchDescriptors[h] == data.end())
+    return -1;
+
+ADMIN_IMPL a = *searchDescriptors[h]++;
+
+*ac = a.GetConf();
+
+return 0;
+}
+//-----------------------------------------------------------------------------
+int SERVICES_IMPL::CloseSearch(int h) const
+{
+STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+if (searchDescriptors.find(h) != searchDescriptors.end())
+    {
+    searchDescriptors.erase(searchDescriptors.find(h));
+    return 0;
+    }
+
+WriteServLog("SERVICES. Incorrect search handle.");
+return -1;
+}
+//-----------------------------------------------------------------------------

diff --git a/projects/stargazer/services_impl.h b/projects/stargazer/services_impl.h
new file mode 100644 (file)
index 0000000..4c7044f
--- /dev/null
+++ b/projects/stargazer/services_impl.h
@@ -0,0 +1,67 @@
+/*
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+ *    Author : Maxim Mamontov <faust@stargazer.dp.ua>
+ */
+
+#ifndef SERVICES_IMPL_H
+#define SERVICES_IMPL_H
+
+#include <pthread.h>
+
+#include <list>
+#include <map>
+#include <string>
+
+#include "stg/services.h"
+#include "stg/service_conf.h"
+#include "stg/locker.h"
+#include "stg/store.h"
+#include "stg/noncopyable.h"
+
+class ADMIN;
+
+class SERVICES_IMPL : private NONCOPYABLE, public SERVICES {
+public:
+    SERVICES_IMPL(STORE * st);
+    virtual SERVICES_IMPL() {}
+
+    int Add(const SERVICE_CONF & service, const ADMIN * admin);
+    int Del(const std::string & name, const ADMIN * admin);
+    int Change(const SERVICE_CONF & service, const ADMIN * admin);
+    bool FindService(const std::string & name, SERVICE_CONF & service);
+    bool ServiceExists(const std::string & name) const;
+    const std::string & GetStrError() const;
+
+    int OpenSearch() const;
+    int SearchNext(int, SERVICE_CONF * service) const;
+    int CloseSearch(int) const;
+
+private:
+    typedef list<SERVICE_CONF>::iterator       srv_iter;
+    typedef list<SERVICE_CONF>::const_iterator const_srv_iter;
+
+    bool ReadServices();
+
+    std::list<SERVICE_CONF> data;
+    STORE *                 store;
+    STG_LOGGER &            WriteServLog;
+    mutable std::map<int, const_srv_iter> searchDescriptors;
+    mutable unsigned int    handle;
+    mutable pthread_mutex_t mutex;
+    std::string             strError;
+};