This file is indexed.

/usr/lib/ubuntu-mate/ubuntu-mate-welcome-repository-installer is in ubuntu-mate-welcome 16.04.9.

This file is owned by root:root, with mode 0o755.

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
#!/usr/bin/python3

# Copyright (C) 2015 Martin Wimpress <code@ubuntu-mate.org>
# Copyright (C) 2016 Luke Horwell <lukehorwell37+code@gmail.com>
#
# 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 St, Fifth Floor, Boston, MA 02110-1301, USA.

import os, sys, platform, subprocess, json, glob, urllib.request

def del_apt_sources(listname):
    for filename in glob.glob(os.path.join('/','etc','apt','sources.list.d','*'+listname+'*.list*')):
        os.remove(filename)

def add_apt_sources(source, listname):
    #subprocess.call(['aptdcon', '--add-repository=' + source, '--sources-file', listname + '.list'])
    sources_file = os.path.join('/','etc','apt','sources.list.d',listname + '.list')
    print('Writing: ' + sources_file)
    with open(sources_file, 'w') as f:
        f.write('\n'.join(source))

def add_apt_key_from_url(key_url):
    #subprocess.call(['aptdcon', '--add-vendor-key=' + os.path.join('/', 'tmp', 'pub.key')])
    temp_key = os.path.join('/', 'tmp', 'pub.key')
    print('Processing: ' + key_url)
    if os.path.exists(temp_key):
        os.remove(temp_key)

    # Download the file from `url` and save it locally under `file_name`:
    with urllib.request.urlopen(key_url) as response, open(temp_key, 'wb') as out_file:
        data = response.read() # a `bytes` object
        out_file.write(data)
    subprocess.call(['apt-key', 'add', temp_key])

def add_apt_key_from_keyserver(keyserver, key):
    subprocess.call(['apt-key', 'adv', '--keyserver', keyserver, '--recv-keys', key])

def enable_ppa(ppa):
    subprocess.call(['apt-add-repository', '--enable-source', '--yes', ppa])

def enable_partner_repository():
    subprocess.call(['apt-add-repository', '--enable-source', '--yes', 'http://archive.canonical.com/ubuntu partner'])


def finish(err=0):
    ''' Close the application '''
    print('--------------------------------------------------------------')
    sys.exit(err)

if __name__ == "__main__":
    '''
        This script requires the following variables:
            [0] = Path to the Application Index JSON
            [1] = Function to perform
            [2] = Program's category
            [3] = Program ID
            [4] = "Target" instructions to read. Contains a codename or "all"

        This script will directly read the Application Index JSON.
    '''
    print('--- Repository Installer -------------------------------------')

    # Set important variables.
    os_version = platform.dist()[1]
    codename = platform.dist()[2]

    try:
        json_path = sys.argv[1]
        function = sys.argv[2]
        category = sys.argv[3]
        program_id = sys.argv[4]
        target = sys.argv[5]
    except:
        print('This script requires parameters that are retrieved via ubuntu-mate-welcome.')
        finish(1)

    # Load the Application Index
    if os.path.exists(json_path):
        with open(json_path) as data_file:
            index = json.load(data_file)
    else:
        print('The application index does not exist: "' + json_file + '".')
        finish(1)

    # Perform functions based on the parameters.
    if function == 'add_apt_key_from_keyserver':
        keyserver = index[category][program_id]['pre-install'][target]['apt-key-server'][0]
        key = index[category][program_id]['pre-install'][target]['apt-key-server'][1]
        add_apt_key_from_keyserver(keyserver, key)

    elif function == 'add_apt_key_from_url':
        url = index[category][program_id]['pre-install'][target]['apt-key-url']
        add_apt_key_from_url(url)

    elif function == 'add_apt_sources':
        source_raw = index[category][program_id]['pre-install'][target]['apt-sources']
        source_data = []
        for line in source_raw:
            source_data.append(line.replace('OSVERSION',os_version).replace('CODENAME',codename))
        list_name = index[category][program_id]['pre-install'][target]['source-file']
        list_name = list_name.replace('OSVERSION',os_version).replace('CODENAME',codename)
        add_apt_sources(source_data, list_name)

    elif function == 'del_apt_sources':
        list_name = index[category][program_id]['pre-install'][target]['source-file']
        list_name = list_name.replace('OSVERSION',os_version).replace('CODENAME',codename)
        del_apt_sources(list_name)

    elif function == 'enable_partner_repository':
        enable_partner_repository()

    elif function == 'enable_ppa':
        ppa = index[category][program_id]['pre-install'][target]['enable-ppa']
        enable_ppa(ppa)

    else:
        print('Invalid function specified: ' + function)
        finish(1)

    print('Successfully performed function: "' + function + '" for "' + program_id + '".')
    finish(0)