pym/portage/elog/mod_save_summary.py

   1 # elog/mod_save_summary.py - elog dispatch module
   2 # Copyright 2006-2012 Gentoo Foundation
   3 # Distributed under the terms of the GNU General Public License v2
   4
   5 import errno
   6 import io
   7 import time
   8 import portage
   9 from portage import os
  10 from portage import _encodings
  11 from portage import _unicode_decode
  12 from portage import _unicode_encode
  13 from portage.data import portage_gid, portage_uid
  14 from portage.localization import _
  15 from portage.package.ebuild.prepare_build_dirs import _ensure_log_subdirs
  16 from portage.util import apply_permissions, ensure_dirs, normalize_path
  17
  18 def process(mysettings, key, logentries, fulltext):
  19         if mysettings.get("PORT_LOGDIR"):
  20                 logdir = normalize_path(mysettings["PORT_LOGDIR"])
  21         else:
  22                 logdir = os.path.join(os.sep, mysettings["EPREFIX"].lstrip(os.sep),
  23                         "var", "log", "portage")
  24
  25         if not os.path.isdir(logdir):
  26                 # Only initialize group/mode if the directory doesn't
  27                 # exist, so that we don't override permissions if they
  28                 # were previously set by the administrator.
  29                 # NOTE: These permissions should be compatible with our
  30                 # default logrotate config as discussed in bug 374287.
  31                 logdir_uid = -1
  32                 if portage.data.secpass >= 2:
  33                         logdir_uid = portage_uid
  34                 ensure_dirs(logdir, uid=logdir_uid, gid=portage_gid, mode=0o2770)
  35
  36         elogdir = os.path.join(logdir, "elog")
  37         _ensure_log_subdirs(logdir, elogdir)
  38
  39         # TODO: Locking
  40         elogfilename = elogdir+"/summary.log"
  41         try:
  42                 elogfile = io.open(_unicode_encode(elogfilename,
  43                         encoding=_encodings['fs'], errors='strict'),
  44                         mode='a', encoding=_encodings['content'],
  45                         errors='backslashreplace')
  46         except IOError as e:
  47                 func_call = "open('%s', 'a')" % elogfilename
  48                 if e.errno == errno.EACCES:
  49                         raise portage.exception.PermissionDenied(func_call)
  50                 elif e.errno == errno.EPERM:
  51                         raise portage.exception.OperationNotPermitted(func_call)
  52                 elif e.errno == errno.EROFS:
  53                         raise portage.exception.ReadOnlyFileSystem(func_call)
  54                 else:
  55                         raise
  56
  57         # Copy group permission bits from parent directory.
  58         elogdir_st = os.stat(elogdir)
  59         elogdir_gid = elogdir_st.st_gid
  60         elogdir_grp_mode = 0o060 & elogdir_st.st_mode
  61
  62         # Copy the uid from the parent directory if we have privileges
  63         # to do so, for compatibility with our default logrotate
  64         # config (see bug 378451). With the "su portage portage"
  65         # directive and logrotate-3.8.0, logrotate's chown call during
  66         # the compression phase will only succeed if the log file's uid
  67         # is portage_uid.
  68         logfile_uid = -1
  69         if portage.data.secpass >= 2:
  70                 logfile_uid = elogdir_st.st_uid
  71         apply_permissions(elogfilename, uid=logfile_uid, gid=elogdir_gid,
  72                 mode=elogdir_grp_mode, mask=0)
  73
  74         time_str = time.strftime("%Y-%m-%d %H:%M:%S %Z",
  75                 time.localtime(time.time()))
  76         # Avoid potential UnicodeDecodeError later.
  77         time_str = _unicode_decode(time_str,
  78                 encoding=_encodings['content'], errors='replace')
  79         elogfile.write(_unicode_decode(
  80                 _(">>> Messages generated by process " +
  81                 "%(pid)d on %(time)s for package %(pkg)s:\n\n") %
  82                 {"pid": os.getpid(), "time": time_str, "pkg": key}))
  83         elogfile.write(_unicode_decode(fulltext))
  84         elogfile.write(_unicode_decode("\n"))
  85         elogfile.close()
  86
  87         return elogfilename