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Edit File: abrt-handle-upload

#!/usr/bin/python -u
# Called by abrtd when a new file is noticed in upload directory.
# The task of this script is to unpack the file and move
# problem data found in it to abrtd spool directory.

import sys
import stat
import os
import getopt
import tempfile
import shutil
import datetime
import grp

from reportclient import set_verbosity, error_msg_and_die, error_msg, log

GETTEXT_PROGNAME = "abrt"
import locale
import gettext

_ = lambda x: gettext.lgettext(x)

def init_gettext():
    try:
        locale.setlocale(locale.LC_ALL, "")
    except locale.Error:
        os.environ['LC_ALL'] = 'C'
        locale.setlocale(locale.LC_ALL, "")
    # Defeat "AttributeError: 'module' object has no attribute 'nl_langinfo'"
    try:
        gettext.bind_textdomain_codeset(GETTEXT_PROGNAME, locale.nl_langinfo(locale.CODESET))
    except AttributeError:
        pass
    gettext.bindtextdomain(GETTEXT_PROGNAME, '/usr/share/locale')
    gettext.textdomain(GETTEXT_PROGNAME)

import problem

def write_str_to(filename, s, uid, gid, mode):
    fd = os.open(filename, os.O_WRONLY | os.O_CREAT | os.O_TRUNC, mode)
    if fd >= 0:
        os.fchown(fd, uid, gid)
        os.write(fd, s)
        os.close(fd)

def validate_transform_move_and_notify(uploaded_dir_path, problem_dir_path, dest=None):
    fsuid = 0
    fsgid = 0

try:
        gabrt = grp.getgrnam("abrt")
        fsgid = gabrt.gr_gid
    except KeyError as ex:
        error_msg("Failed to get GID of 'abrt' (using 0 instead): {0}'".format(str(ex)))

try:
        # give the uploaded directory to 'root:abrt' or 'root:root'
        os.chown(uploaded_dir_path, fsuid, fsgid)
        # set the right permissions for this machine
        # (allow the owner and the group to access problem elements,
        #  the default dump dir mode lacks x bit for both)
        os.chmod(uploaded_dir_path, 0640 | stat.S_IXUSR | stat.S_IXGRP)

# sanitize problem elements
        for item in os.listdir(uploaded_dir_path):
            apath = os.path.join(uploaded_dir_path, item)
            if os.path.islink(apath):
                # remove symbolic links
                os.remove(apath)
            elif os.path.isdir(apath):
                # remove directories
                shutil.rmtree(apath)
            elif os.path.isfile(apath):
                # set file ownership to 'root:abrt' or 'root:root'
                os.chown(apath, fsuid, fsgid)
                # set the right file permissions for this machine
                os.chmod(apath, 0640)
            else:
                # remove things that are neither files, symlinks nor directories
                os.remove(apath)
    except OSError as ex:
        error_msg("Removing uploaded dir '{0}': '{1}'".format(uploaded_dir_path, str(ex)))
        try:
            shutil.rmtree(uploaded_dir_path)
        except OSError as ex2:
            error_msg_and_die("Failed to clean up dir '{0}': '{1}'".format(uploaded_dir_path, str(ex2)))
        return

# overwrite remote if it exists
    remote_path = os.path.join(uploaded_dir_path, "remote")
    write_str_to(remote_path, "1", fsuid, fsgid, 0640)

# abrtd would increment count value and abrt-server refuses to process
    # problem directories containing 'count' element when PrivateReports is on.
    count_path = os.path.join(uploaded_dir_path, "count")
    if os.path.exists(count_path):
        # overwrite remote_count if it exists
        remote_count_path = os.path.join(uploaded_dir_path, "remote_count")
        os.rename(count_path, remote_count_path)

if not dest:
        dest = problem_dir_path

shutil.move(uploaded_dir_path, dest)

problem.notify_new_path(problem_dir_path)

if __name__ == "__main__":

# Helper: exit with cleanup
    die_exitcode = 1
    delete_on_exit = None
    def print_clean_and_die(fmt, *args):
        sys.stderr.write("%s\n" % (fmt % args))
        if delete_on_exit:
            shutil.rmtree(delete_on_exit, True) # True: ignore_errors
        sys.exit(die_exitcode)

# localization
    init_gettext()

verbose = 0
    ABRT_VERBOSE = os.getenv("ABRT_VERBOSE")
    if ABRT_VERBOSE:
        try:
            verbose = int(ABRT_VERBOSE)
        except:
            pass

progname = os.path.basename(sys.argv[0])
    help_text = _(
        "Usage: %s [-vd] ABRT_SPOOL_DIR UPLOAD_DIR FILENAME"
      "\n"
      "\n   -v             - Verbose"
      "\n   -d             - Delete uploaded archive"
      "\n   ABRT_SPOOL_DIR - Directory where valid uploaded archives are unpacked to"
      "\n   UPLOAD_DIR     - Directory where uploaded archives are stored"
      "\n   FILENAME       - Uploaded archive file name"
      "\n"
    ) % progname

try:
        opts, args = getopt.getopt(sys.argv[1:], "vdh", ["help"])
    except getopt.GetoptError as err:
        error_msg(err)  # prints something like "option -a not recognized"
        error_msg_and_die(help_text)

delete_archive = False
    for opt, arg in opts:
        if opt in ("-h", "--help"):
            print help_text
            sys.exit(0)
        if opt == "-v":
            verbose += 1
        if opt == "-d":
            delete_archive = True

set_verbosity(verbose)

if len(args) < 3:
        error_msg_and_die(help_text)

abrt_dir = args[0]
    upload_dir = args[1]
    archive = args[2]

if not os.path.isdir(abrt_dir):
        error_msg_and_die(_("Not a directory: '{0}'").format(abrt_dir))

if not os.path.isdir(upload_dir):
        error_msg_and_die(_("Not a directory: '{0}'").format(upload_dir))

if archive[0] == "/":
        error_msg_and_die(_("Skipping: '{0}' (starts with slash)").format(archive))

if archive[0] == ".":
        error_msg_and_die(_("Skipping: '{0}' (starts with dot)").format(archive))

if ".." in archive:
        error_msg_and_die(_("Skipping: '{0}' (contains ..)").format(archive))

if " " in archive:
        error_msg_and_die(_("Skipping: '{0}' (contains space)").format(archive))

if "\t" in archive:
        error_msg_and_die(_("Skipping: '{0}' (contains tab)").format(archive))

try:
        os.chdir(upload_dir)
    except OSError:
        error_msg_and_die(_("Can't change directory to '{0}'").format(upload_dir))

if archive.endswith(".tar.gz"):
        unpacker = "gunzip"
    elif archive.endswith(".tgz"):
        unpacker = "gunzip"
    elif archive.endswith(".tar.bz2"):
        unpacker = "bunzip2"
    elif archive.endswith(".tar.xz"):
        unpacker = "unxz"
    else:
        error_msg_and_die(_("Unknown file type: '{0}'").format(archive))

try:
        working_dir = tempfile.mkdtemp(prefix="abrt_handle_upload.", dir="/var/tmp")
    except OSError:
        error_msg_and_die(_("Can't create working directory in '{0}'").format("/var/tmp"))
    delete_on_exit = working_dir

try:
        tempdir = working_dir + "/remote." + datetime.datetime.now().strftime("%Y-%m-%d-%H:%M:%S.%f.") + str(os.getpid())
        working_archive = working_dir + "/" + archive

if delete_archive:
            try:
                shutil.move(archive, working_archive)
            except IOError:
                print_clean_and_die(_("Can't move '{0}' to '{1}'").format(archive, working_archive))
        else:
            try:
                shutil.copy(archive, working_archive)
            except IOError:
                print_clean_and_die(_("Can't copy '{0}' to '{1}'").format(archive, working_archive))

ex = os.spawnlp(os.P_WAIT, unpacker, unpacker, "-t", "--", working_archive)
        if ex != 0:
            print_clean_and_die(_("Verification error on '{0}'").format(archive))

log(_("Unpacking '{0}'").format(archive))
        try:
            os.mkdir(tempdir)
        except OSError:
            print_clean_and_die(_("Can't create '{0}' directory").format(tempdir))

ex = os.system(unpacker+" <"+working_archive+" | tar xf - -C "+tempdir)
        if ex != 0:
            print_clean_and_die(_("Can't unpack '{0}'").format(archive))

# The archive can contain either plain dump files
        # or one or more complete problem data directories.
        # Checking second possibility first.
        if os.path.exists(tempdir+"/analyzer") and os.path.exists(tempdir+"/time"):
            validate_transform_move_and_notify(tempdir, abrt_dir+"/"+os.path.basename(tempdir), dest=abrt_dir)
        else:
            for d in os.listdir(tempdir):
                if not os.path.isdir(tempdir+"/"+d):
                    continue
                dst = abrt_dir+"/"+d
                if os.path.exists(dst):
                    dst += "."+str(os.getpid())
                if os.path.exists(dst):
                    continue
                validate_transform_move_and_notify(tempdir+"/"+d, dst)

die_exitcode = 0
        # This deletes working_dir (== delete_on_exit)
        print_clean_and_die(_("'{0}' processed successfully").format(archive))

except:
        if delete_on_exit:
            shutil.rmtree(delete_on_exit, True) # True: ignore_errors
        raise