root / snf-image-helper / inject-files.py @ 21be5a41
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1 | 22a2e378 | Nikos Skalkotos | #!/usr/bin/env python
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2 | d984217b | Vangelis Koukis | #
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3 | d984217b | Vangelis Koukis | # Copyright (C) 2011 GRNET S.A.
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4 | 7e5d635b | Nikos Skalkotos | #
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5 | 7e5d635b | Nikos Skalkotos | # This program is free software; you can redistribute it and/or modify
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6 | 7e5d635b | Nikos Skalkotos | # it under the terms of the GNU General Public License as published by
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7 | 7e5d635b | Nikos Skalkotos | # the Free Software Foundation; either version 2 of the License, or
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8 | 7e5d635b | Nikos Skalkotos | # (at your option) any later version.
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9 | 7e5d635b | Nikos Skalkotos | #
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10 | 7e5d635b | Nikos Skalkotos | # This program is distributed in the hope that it will be useful, but
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11 | 7e5d635b | Nikos Skalkotos | # WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | 7e5d635b | Nikos Skalkotos | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 | 7e5d635b | Nikos Skalkotos | # General Public License for more details.
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14 | 7e5d635b | Nikos Skalkotos | #
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15 | 7e5d635b | Nikos Skalkotos | # You should have received a copy of the GNU General Public License
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16 | 7e5d635b | Nikos Skalkotos | # along with this program; if not, write to the Free Software
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17 | 7e5d635b | Nikos Skalkotos | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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18 | 7e5d635b | Nikos Skalkotos | # 02110-1301, USA.
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19 | 7e5d635b | Nikos Skalkotos | |
20 | 22a2e378 | Nikos Skalkotos | """Inject files into a directory
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21 | 22a2e378 | Nikos Skalkotos |
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22 | 22a2e378 | Nikos Skalkotos | This program injects files into a target directory.
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23 | 22a2e378 | Nikos Skalkotos | The files are passed to the program through a JSON string either read from a
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24 | 22a2e378 | Nikos Skalkotos | file or from standard input.
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25 | 22a2e378 | Nikos Skalkotos |
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26 | 22a2e378 | Nikos Skalkotos | """
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27 | 22a2e378 | Nikos Skalkotos | |
28 | 22a2e378 | Nikos Skalkotos | import sys |
29 | 22a2e378 | Nikos Skalkotos | import os |
30 | 22a2e378 | Nikos Skalkotos | import json |
31 | 22a2e378 | Nikos Skalkotos | import datetime |
32 | 22a2e378 | Nikos Skalkotos | import base64 |
33 | 22a2e378 | Nikos Skalkotos | from optparse import OptionParser |
34 | 22a2e378 | Nikos Skalkotos | |
35 | 22a2e378 | Nikos Skalkotos | |
36 | 22a2e378 | Nikos Skalkotos | def timestamp(): |
37 | 22a2e378 | Nikos Skalkotos | now = datetime.datetime.now() |
38 | 22a2e378 | Nikos Skalkotos | current_time = now.strftime("%Y%m%d.%H%M%S")
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39 | 22a2e378 | Nikos Skalkotos | return current_time
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40 | 22a2e378 | Nikos Skalkotos | |
41 | d984217b | Vangelis Koukis | |
42 | 22a2e378 | Nikos Skalkotos | def parse_arguments(input_args): |
43 | 22a2e378 | Nikos Skalkotos | usage = "Usage: %prog [options] <target>"
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44 | 22a2e378 | Nikos Skalkotos | parser = OptionParser(usage=usage) |
45 | 22a2e378 | Nikos Skalkotos | parser.add_option("-i", "--input", |
46 | d984217b | Vangelis Koukis | action="store", type='string', dest="input_file", |
47 | 22a2e378 | Nikos Skalkotos | help="get input from FILE instead of stdin",
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48 | 22a2e378 | Nikos Skalkotos | metavar="FILE")
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49 | c03b6c45 | Nikos Skalkotos | parser.add_option("-d", "--decode", |
50 | c03b6c45 | Nikos Skalkotos | action="store_true", dest="decode", default=False, |
51 | c03b6c45 | Nikos Skalkotos | help="decode files under target and create manifest")
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52 | 22a2e378 | Nikos Skalkotos | |
53 | 22a2e378 | Nikos Skalkotos | opts, args = parser.parse_args(input_args) |
54 | 22a2e378 | Nikos Skalkotos | |
55 | 22a2e378 | Nikos Skalkotos | if len(args) != 1: |
56 | 22a2e378 | Nikos Skalkotos | parser.error('target is missing')
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57 | d984217b | Vangelis Koukis | |
58 | 22a2e378 | Nikos Skalkotos | target = args[0]
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59 | 22a2e378 | Nikos Skalkotos | if not os.path.isdir(target): |
60 | 22a2e378 | Nikos Skalkotos | parser.error('target is not a directory')
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61 | 22a2e378 | Nikos Skalkotos | |
62 | 22a2e378 | Nikos Skalkotos | input_file = opts.input_file |
63 | 22a2e378 | Nikos Skalkotos | if input_file is None: |
64 | 22a2e378 | Nikos Skalkotos | input_file = sys.stdin |
65 | 22a2e378 | Nikos Skalkotos | else:
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66 | 22a2e378 | Nikos Skalkotos | if not os.path.isfile(input_file): |
67 | 22a2e378 | Nikos Skalkotos | parser.error('input file does not exist')
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68 | d984217b | Vangelis Koukis | input_file = open(input_file, 'r') |
69 | d984217b | Vangelis Koukis | |
70 | c03b6c45 | Nikos Skalkotos | return (input_file, target, opts.decode)
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71 | 22a2e378 | Nikos Skalkotos | |
72 | 22a2e378 | Nikos Skalkotos | |
73 | 22a2e378 | Nikos Skalkotos | def main(): |
74 | c03b6c45 | Nikos Skalkotos | (input_file, target, decode) = parse_arguments(sys.argv[1:])
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75 | 22a2e378 | Nikos Skalkotos | |
76 | 2545cdc5 | Nikos Skalkotos | files = json.load(input_file) |
77 | d984217b | Vangelis Koukis | |
78 | c03b6c45 | Nikos Skalkotos | if decode:
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79 | c03b6c45 | Nikos Skalkotos | manifest = open(target + '/manifest', 'w') |
80 | d984217b | Vangelis Koukis | |
81 | c03b6c45 | Nikos Skalkotos | count = 0
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82 | 22a2e378 | Nikos Skalkotos | for f in files: |
83 | c03b6c45 | Nikos Skalkotos | count += 1
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84 | c03b6c45 | Nikos Skalkotos | owner = f['owner'] if 'owner' in f else "root" |
85 | c03b6c45 | Nikos Skalkotos | group = f['group'] if 'group' in f else "root" |
86 | d984217b | Vangelis Koukis | mode = f['mode'] if 'mode' in f else 0440 |
87 | 22a2e378 | Nikos Skalkotos | |
88 | c03b6c45 | Nikos Skalkotos | filepath = f['path'] if not decode else str(count) |
89 | c03b6c45 | Nikos Skalkotos | filepath = target + "/" + filepath
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90 | c03b6c45 | Nikos Skalkotos | |
91 | c03b6c45 | Nikos Skalkotos | if os.path.lexists(filepath):
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92 | c03b6c45 | Nikos Skalkotos | backup_file = filepath + '.bak.' + timestamp()
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93 | c03b6c45 | Nikos Skalkotos | os.rename(filepath, backup_file) |
94 | c03b6c45 | Nikos Skalkotos | |
95 | c03b6c45 | Nikos Skalkotos | parentdir = os.path.dirname(filepath) |
96 | 22a2e378 | Nikos Skalkotos | if not os.path.exists(parentdir): |
97 | 22a2e378 | Nikos Skalkotos | os.makedirs(parentdir) |
98 | 22a2e378 | Nikos Skalkotos | |
99 | c03b6c45 | Nikos Skalkotos | newfile = open(filepath, 'w') |
100 | 22a2e378 | Nikos Skalkotos | newfile.write(base64.b64decode(f['contents']))
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101 | 22a2e378 | Nikos Skalkotos | newfile.close() |
102 | d984217b | Vangelis Koukis | |
103 | c03b6c45 | Nikos Skalkotos | if decode:
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104 | d984217b | Vangelis Koukis | manifest.write("%s\x00%s\x00%s\x00%o\x00%s\x00" %
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105 | d984217b | Vangelis Koukis | (count, owner, group, mode, f['path']))
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106 | d984217b | Vangelis Koukis | |
107 | c03b6c45 | Nikos Skalkotos | sys.stderr.write('Files were injected successfully\n')
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108 | c03b6c45 | Nikos Skalkotos | |
109 | c03b6c45 | Nikos Skalkotos | if decode:
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110 | c03b6c45 | Nikos Skalkotos | manifest.close() |
111 | 22a2e378 | Nikos Skalkotos | |
112 | 22a2e378 | Nikos Skalkotos | input_file.close() |
113 | 22a2e378 | Nikos Skalkotos | return 0 |
114 | 22a2e378 | Nikos Skalkotos | |
115 | 22a2e378 | Nikos Skalkotos | if __name__ == "__main__": |
116 | 22a2e378 | Nikos Skalkotos | sys.exit(main()) |
117 | 22a2e378 | Nikos Skalkotos | |
118 | 22a2e378 | Nikos Skalkotos | # vim: set sta sts=4 shiftwidth=4 sw=4 et ai : |