dchroot-session.cc

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00001 /* Copyright © 2005-2007  Roger Leigh <rleigh@debian.org>
00002  *
00003  * schroot is free software; you can redistribute it and/or modify it
00004  * under the terms of the GNU General Public License as published by
00005  * the Free Software Foundation; either version 2 of the License, or
00006  * (at your option) any later version.
00007  *
00008  * schroot is distributed in the hope that it will be useful, but
00009  * WITHOUT ANY WARRANTY; without even the implied warranty of
00010  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00011  * General Public License for more details.
00012  *
00013  * You should have received a copy of the GNU General Public License
00014  * along with this program; if not, write to the Free Software
00015  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
00016  * MA  02111-1307  USA
00017  *
00018  *********************************************************************/
00019 
00020 #include <config.h>
00021 
00022 #include "dchroot-session.h"
00023 
00024 #include <cassert>
00025 #include <cerrno>
00026 #include <cstdlib>
00027 #include <cstring>
00028 #include <iostream>
00029 #include <memory>
00030 
00031 #include <unistd.h>
00032 
00033 #include <syslog.h>
00034 
00035 #include <boost/format.hpp>
00036 
00037 using std::cout;
00038 using std::endl;
00039 using sbuild::_;
00040 using boost::format;
00041 using namespace dchroot;
00042 
00043 session::session (std::string const&         service,
00044                   config_ptr&                config,
00045                   operation                  operation,
00046                   sbuild::string_list const& chroots,
00047                   bool                       compat):
00048   session_base(service, config, operation, chroots, compat)
00049 {
00050 }
00051 
00052 session::~session ()
00053 {
00054 }
00055 
00056 sbuild::auth::status
00057 session::get_chroot_auth_status (sbuild::auth::status status,
00058                                  sbuild::chroot::ptr const& chroot) const
00059 {
00060   if (get_compat() == true)
00061     status = change_auth(status, auth::STATUS_NONE);
00062   else
00063     status = change_auth(status,
00064                          sbuild::session::get_chroot_auth_status(status,
00065                                                                  chroot));
00066 
00067   return status;
00068 }
00069 
00070 sbuild::string_list
00071 session::get_login_directories () const
00072 {
00073   sbuild::string_list ret;
00074 
00075   std::string const& wd(get_wd());
00076   if (!wd.empty())
00077     {
00078       // Set specified working directory.
00079       ret.push_back(wd);
00080     }
00081   else
00082     {
00083       // Set current working directory only if preserving environment.
00084       // Only change to home if not preserving the environment.
00085       if (!get_environment().empty())
00086         ret.push_back(this->sbuild::session::cwd);
00087       else
00088         ret.push_back(get_home());
00089 
00090       // Final fallback to root.
00091       if (std::find(ret.begin(), ret.end(), "/") == ret.end())
00092         ret.push_back("/");
00093     }
00094 
00095   return ret;
00096 }
00097 
00098 void
00099 session::get_user_command (sbuild::chroot::ptr& session_chroot,
00100                            std::string&         file,
00101                            sbuild::string_list& command) const
00102 {
00103   std::string programstring = sbuild::string_list_to_string(command, " ");
00104 
00105   command.clear();
00106   command.push_back(get_shell());
00107   command.push_back("-c");
00108   command.push_back(programstring);
00109 
00110   file = command[0];
00111 
00112   sbuild::log_debug(sbuild::DEBUG_NOTICE) << "file=" << file << endl;
00113 
00114   std::string commandstring = sbuild::string_list_to_string(command, " ");
00115   sbuild::log_debug(sbuild::DEBUG_NOTICE)
00116     << format("Running command: %1%") % commandstring << endl;
00117   if (get_uid() == 0 || get_ruid() != get_uid())
00118     syslog(LOG_USER|LOG_NOTICE, "[%s chroot] (%s->%s) Running command: \"%s\"",
00119            session_chroot->get_name().c_str(), get_ruser().c_str(), get_user().c_str(), commandstring.c_str());
00120 
00121   if (get_verbosity() != auth::VERBOSITY_QUIET)
00122     {
00123       std::string format_string;
00124       // TRANSLATORS: %1% = chroot name
00125       // TRANSLATORS: %2% = command
00126       format_string = (_("[%1% chroot] Running command: \"%2%\""));
00127 
00128       format fmt(format_string);
00129       fmt % session_chroot->get_name()
00130         % programstring;
00131       sbuild::log_info() << fmt << endl;
00132     }
00133 }

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