/usr/lib/python2.7/dist-packages/turninng/submitter.py is in turnin-ng 1.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 | # Turnin-NG, an assignment submitter and manager. --- Submission utilities
# Copyright (C) 2009-2014 Ryan Kavanagh <rak@debian.org>
#
# 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.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import errno
import os
import os.path
import pwd
import random
import shutil
import string
import subprocess
import tarfile
import tempfile
from turninng.configparser import TurninCourse, TurninList
def submit_files(project, files, tlist='', gpg_key=''):
"""
Submits the files to the project.
@type project: TurninProject
@param project: Project to which we should submit the files
@type files: list
@param files: Python list of files.
@type tlist: TurninList
@param tlist: list of submitted files
@type gpg_key: string
@param gpg_key: GnuPG public-key ID
@rtype: list
@return: Python list of submitted files
@raise subprocess.CalledProcessError: GnuPG fails to sign
@raise EnvironmentError: tlist exists and is not a file
"""
if not tlist:
tlist = os.path.join(os.path.expanduser('~'), '.turnin-ng',
'submissions')
# We don't want something like /home/ryan/.turning-ng/submissions../
if not os.path.isdir(os.path.normpath(os.path.join(tlist, os.pardir))):
os.makedirs(os.path.normpath(os.path.join(tlist, os.pardir)))
# Create the TurninList if it doesn't exist:
if not os.path.isfile(tlist):
if os.path.exists(tlist):
raise EnvironmentError(
"Path for list of submissions %s exists " % tlist +
"but is not a file.")
else:
open(tlist, 'w').close()
# We don't want other people to be able to read out submitted file
# suffixes and messing with our files!
os.chmod(tlist, 0600)
list_file = TurninList(tlist)
random_suffix = ''
if list_file.config.has_key(project.course.name):
if list_file.config[project.course.name].has_key(
project.project['uuid']):
random_suffix = list_file.config[project.course.name][
project.project['uuid']]
if not random_suffix:
chars = string.letters + string.digits
for i in range(16):
random_suffix += random.choice(chars)
list_file.write(project, random_suffix)
temparchive = tempfile.NamedTemporaryFile(suffix='.tar.gz')
filename = '%(username)s-%(suffix)s.tar.gz' % \
{'username': pwd.getpwuid(os.getuid())[0], # This is the username that
# that owns the process
'suffix': random_suffix}
tempdir = tempfile.mkdtemp()
for file in files:
if os.path.isdir(file):
shutil.copytree(file, os.path.join(tempdir, file))
else:
shutil.copy(file, tempdir)
tar = tarfile.open(temparchive.name, 'w:gz')
# We want the uncompressed directory to have the username in it so the
# professor can easily find a student's assignment.
tar.add(tempdir, '%(projectname)s-%(username)s' %
{'projectname': project.name,
'username': pwd.getpwuid(os.getuid())[0]})
submitted_files = tar.members
tar.close()
if gpg_key:
cargs = ['gpg', '--sign', '-u ' + gpg_key, '-b', temparchive.name]
retcode = subprocess.call(cargs)
if retcode < 0:
raise subprocess.CalledProcessError(retcode, ' '.join(cargs))
print "An error occured when calling GPG, not submitting signature"
# It's important that we set gpg_key to False. Otherwise,
# shutil.copy below will fail because it can't find the .sig file
# and Turnin-NG will crash.
gpg_key = False
shutil.copyfile(temparchive.name,
os.path.join(project.project['directory'], filename))
try:
os.chmod(os.path.join(project.project['directory'], filename), 0666)
except OSError, e:
if e.errno == e.EPERM:
# We've got an error on our hands:
# OSError: [Errno 1] Operation not permitted
#
# Probable cause:
#
# We've previously submitted. A managing user has since
# disabled/enabled the project and is now the owner of our archive.
# Since we aren't the owner, we don't have permisisons to run chmod.
# In any case, unless we have a malicious TA, since we've already
# submitted, the permissions on our file should already be correct.
pass
# We want the signature's timestamp to be more recent than the archive's.
if gpg_key:
shutil.copyfile(temparchive.name + '.sig',
os.path.join(project.project['directory'], filename + '.sig'))
os.remove(temparchive.name + '.sig')
# GPG signatures are 644 by default
os.chmod(os.path.join(project.project['directory'], filename + '.sig'),
0666)
else:
submitted_sig = os.path.join(project.project['directory'],
filename + '.sig')
if os.path.exists(submitted_sig):
# We've already submitted our project and we had signed it. Since
# we're resubmitting, our old signature won't match. Delete it.
os.remove(submitted_sig)
temparchive.close()
shutil.rmtree(tempdir, ignore_errors=True)
for j, file in enumerate(submitted_files):
submitted_files[j] = file.name
return submitted_files
def list_projects(config, course):
"""
Lists available projects for the course.
@type config: string
@param config: configuration file
@type course: string
@param course: course name
@rtype: list
@return: List of '| Enabled/Disabled/Default | Project name | Description |'
strings
"""
projects = [['Enabled', 'Project', 'Description']]
course_obj = TurninCourse(config, course)
default = ''
if course_obj.course.has_key('default'):
default = course_obj.course['default']
for i in course_obj.course.__dict__['sections']:
if default == i:
projects.append(['Default', i, course_obj.course[i]['description']])
else:
projects.append([course_obj.course[i]['enabled'], i,
course_obj.course[i]['description']])
maxlen = [0,0,0]
for p, project in enumerate(projects):
for i, item in enumerate(project):
# We need to convert item to string since item might be a bool.
projects[p][i] = str(item)
if len(str(item)) > maxlen[i]:
maxlen[i] = len(str(item))
for p, project in enumerate(projects):
new_line = ''
for i, item in enumerate(project):
# We need the space difference + 1 so that we don't get "item|"
new_line += '| ' + item + (maxlen[i] - len(item) + 1) * ' '
new_line += '|'
projects[p] = new_line
# Let's insert the top, the header seperater and the bottom
projects.insert(0, len(projects[0]) * '-')
projects.insert(2, projects[0])
projects.append(projects[0])
return projects
|