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annotate scripts/dump_dbm_sessions_db.py @ 8478:ed4ef394d5d6

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doc: initial attempt to document setup of pgp support for email. Used an AI assistant to help write this. Basic gpg commands seem to work, but I have not tested this totally. Docs basically follow the setup used for pgp testing in the test suite. It looks like roundup accepts signed emails as well as encrypted and signed emails. But it does not generate signed emails. Also it looks like there is no PGP support for alternate email addresses. Only primary addresses can do PGP emails.
author John Rouillard <rouilj@ieee.org>
date Sat, 15 Nov 2025 16:59:24 -0500
parents 9ba04f37896f
children
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1 #! /usr/bin/env python3
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2 """Usage: dump_dbm_sessions_db.py [filename]
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3
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4 Simple script to dump the otks and sessions dbm databases. Dumps
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5 sessions db in current directory if no argument is given.
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6
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7 Dump format:
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8
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9 key: <timestamp> data
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10
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11 where <timestamp> is the human readable __timestamp decoded from the
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12 data object. Data object is dumped in json format. With pretty print
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13
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14 key:
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15 <timestamp>
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16 {
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17 key: val,
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18 ...
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19 }
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20
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21 if data is not a python object, print will be key: data or
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22 key:
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23 data
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24
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25 if pretty printed.
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26 """
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27
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28 import argparse
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29 import dbm
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30 import json
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31 import marshal
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32 import os
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33 import sys
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34 from datetime import datetime
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35
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36
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37 def indent(text, amount, ch=" "):
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38 """ Found at: https://stackoverflow.com/a/8348914
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39 """
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40 padding = amount * ch
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41 return ''.join(padding+line for line in text.splitlines(True))
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42
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43 def print_marshal(k):
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44 d = marshal.loads(db[k])
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45 try:
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46 t = datetime.fromtimestamp(d['__timestamp'])
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47 except (KeyError, TypeError):
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48 # TypeError raised if marshalled data is not a dict (list, tuple etc)
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49 t = "no_timestamp"
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50 if args.pretty:
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51 print("%s:\n %s\n%s"%(k, t, indent(json.dumps(
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52 d, sort_keys=True, indent=4), 4)))
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53 else:
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54 print("%s: %s %s"%(k, t, d))
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55
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56 def print_raw(k):
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57 if args.pretty:
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58 print("%s:\n %s"%(k, db[k]))
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59 else:
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60 print("%s: %s"%(k, db[k]))
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61
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62 parser = argparse.ArgumentParser(
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63 description='Dump DBM files used by Roundup in storage order.')
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64 parser.add_argument('-k', '--key', action="append",
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65 help='dump the entry for a key, can be used multiple times.')
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66 parser.add_argument('-K', '--keysonly', action='store_true',
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67 help='print the database keys, sorted in byte order.')
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68 parser.add_argument('-p', '--pretty', action='store_true',
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69 help='pretty print the output rather than printing on one line.')
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70 parser.add_argument('file', nargs='?',
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71 help='file to be dumped ("sessions" if not provided)')
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72 args = parser.parse_args()
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73
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74 if args.file:
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75 file = args.file
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76 else:
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77 file="sessions"
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78
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79 try:
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80 db = dbm.open(file)
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81 except Exception as e:
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82 print("Unable to open database for %s: %s"%(file, e))
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83 try:
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84 os.stat(file)
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85 print(" perhaps file is invalid or was created with a different version of Python?")
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86 except OSError:
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87 # the file does exist on disk.
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88 pass
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89 sys.exit(1)
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90
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91 if args.keysonly:
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92 for k in sorted(db.keys()):
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93 print("%s"%k)
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94 sys.exit(0)
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95
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96 if args.key:
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97 for k in args.key:
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98 try:
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99 print_marshal(k)
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100 except (ValueError):
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101 print_raw(k)
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102 sys.exit(0)
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103
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104 k = db.firstkey()
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105 while k is not None:
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106 try:
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107 print_marshal(k)
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108 except (ValueError): # ValueError marshal.loads failed
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109 print_raw(k)
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110
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111 k = db.nextkey(k)
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