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Scorp
Asked: 2020-07-30 07:12:31 +0800 CST

如何将 Verity .ddd 文件转储到文本文件？

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我发现这个关于 Verity 数据库结构.ddd 文件的非常有用的信息 - Verity Documentum？

现在我想将旧的 Verity 数据库迁移到一个新的应用程序，因此我想将所有内容转储到一个文本文件中并使用一个小工具对其进行解析。不幸的是，使用browse.exe，我似乎一次只能看到一个条目，有没有办法一次性将所有内容转储到标准输出？

file-format forensics

1 个回答

  1. Best Answer

    我找到了解决方案。它不是最好的，但至少它是可用的：

    import argparse
import json
import os
import re
import subprocess

parser = argparse.ArgumentParser(description='Dump MTL Verity ddd file into a text file')
parser.add_argument('input', metavar='DDD-FILE', nargs='+', help='MTL ddd input files')
parser.add_argument('-o','--output', metavar='JSON-FILE', help='JSON output file', required=True)
parser.add_argument('--browse-tool', metavar='TOOL', help='The browse tool to use', default='browse.exe')
args = parser.parse_args()

reNumEntries = re.compile('.*There are \(([0-9]+)\) entries in the field \(VdkVgwKey\).*')
reEntry = re.compile('[0-9]+ ([A-Za-z_0-9]+)[^=]+= (.*)')
reBadName = re.compile('.*_(IX|MI|MX|OF|SZ)')
reBadValue = re.compile('\(only [0-9]+ records\)')

def dump_ddd(ddd_file):
    print('Dumping file {}'.format(ddd_file))
    dump_cmd = [args.browse_tool, ddd_file]
    with subprocess.Popen(dump_cmd, stdout = subprocess.PIPE, stdin = subprocess.PIPE) as proc:
        proc.stdin.write(b'_\nc\nVdkVgwKey\n')
        proc.stdin.flush()
        numEntries = 0
        for line in proc.stdout:
            match = reNumEntries.match(line.decode('ascii'))
            if match:
                numEntries = int(match.group(1))
                break
        print('Found {} entries!'.format(numEntries))
        inputStr = '\n'.join(str(i) for i in range(0, numEntries)) + '\n'
        proc.stdin.write(inputStr.encode('ascii'))
        proc.stdin.write(b'q\n')
        proc.stdin.flush()
        output, _ = proc.communicate(timeout=60)
        data = []
        entry = {}
        for line in output.decode('ascii').split('\n'):
            match = reEntry.match(line)
            if match:
                name = match.group(1)
                if reBadName.match(name):
                    continue
                if name == 'VdkVgwKey':
                    if entry:
                        data.append(entry)
                        entry = {}
                        continue
                value = match.group(2)
                if reBadValue.match(value):
                    value = str()
                entry[name] = value
        if entry:
            data.append(entry)
        return data

collection = []
for ddd_file in args.input:
    collection += dump_ddd(ddd_file)
    
with open(args.output, 'w') as json_file:
    json.dump(collection, json_file, indent=2)
print('Data written to the file {}'.format(args.output))
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