diff options
| author | kenneth@hexad.dk <kenneth@hexad.dk@59da171f-624f-0410-aa54-27559c288bec> | 2013-02-13 01:43:14 +0400 |
|---|---|---|
| committer | kenneth@hexad.dk <kenneth@hexad.dk@59da171f-624f-0410-aa54-27559c288bec> | 2013-02-13 01:43:14 +0400 |
| commit | a0521da54d1614eae426e12f5b76da600376ef66 (patch) | |
| tree | a240ee42b1e7a7225c8284faa7d5c92ba39f028b /Tools | |
Initial version of the new block-based storage format.
Still needs a work over in terms of error handling, progress reporting, warning output, refactoring etc.
Also misses the volume reuse/reclaim algorithms.
But it passes the unit tests now, with and without a local database.
git-svn-id: https://duplicati.googlecode.com/svn/sandboxes/Kenneth/ForestHash@1526 59da171f-624f-0410-aa54-27559c288bec
Diffstat (limited to 'Tools')
| -rw-r--r-- | Tools/Verification/DuplicatiVerify.py | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/Tools/Verification/DuplicatiVerify.py b/Tools/Verification/DuplicatiVerify.py new file mode 100644 index 000000000..9dc3e50f3 --- /dev/null +++ b/Tools/Verification/DuplicatiVerify.py @@ -0,0 +1,94 @@ +#!/usr/bin/env python
+
+"""
+This file is a standalone python script that is tested with python 2.6.5
+If Duplicati is producing a backup with the option --create-verification-file,
+it will produce a .verification file on the backend, which can be verified
+by this script. Simply run this script with the path to the backup
+folder as input, and it will verify all .verification files in the folder.
+"""
+
+import sys
+import os
+import string
+from xml.dom import minidom
+from hashlib import sha256
+
+""" Utility function to return byte chunks from a binary file """
+def bytes_from_file(filename, chunksize=8192):
+ with open(filename, "rb") as f:
+ while True:
+ chunk = f.read(chunksize)
+ if chunk:
+ for b in chunk:
+ yield b
+ else:
+ break
+
+""" Verifies a single .verification file """
+def verifyHashes(filename):
+ errorCount = 0
+ checked = 0
+
+ if (not os.path.exists(filename)):
+ print "Specified file does not exist: ", filename
+ return -1
+
+ folder = os.path.dirname(filename)
+ doc = minidom.parse(filename)
+
+ for file in doc.getElementsByTagName("File"):
+ filename = file.attributes["name"].value
+ hash = string.lower(file.firstChild.data)
+
+ fullpath = os.path.join(folder, filename)
+ if not os.path.exists(fullpath):
+ print "File missing: ", fullpath
+ errorCount += 1
+ else:
+ checked += 1
+ print "Verifying file ", filename
+ hashalg = sha256()
+ for b in bytes_from_file(fullpath):
+ hashalg.update(b)
+ hashval = string.lower(hashalg.hexdigest())
+ if hashval != hash:
+ print "*** Hash check failed for file: ", fullpath
+ errorCount += 1
+
+
+ if errorCount > 0:
+ print "Errors were found"
+ else:
+ print "No errors found"
+
+ return errorCount
+
+
+if __name__ == "__main__":
+ if len(sys.argv) != 1 and len(sys.argv) != 2:
+ print "Usage:", len(sys.argv)
+ print "DuplicatiVerify.py <path to verification file>"
+ print "DuplicatiVerify.py <folder with verification files>"
+ print "DuplicatiVerify.py (no arguments, uses current dir)"
+ else:
+ if len(sys.argv) == 1:
+ argument = os.getcwd()
+ else:
+ argument = sys.argv[1]
+
+ if not os.path.exists(argument):
+ print "No such file or directory: ", argument
+ else:
+ if os.path.isfile(argument):
+ verifyHashes(argument)
+ else:
+ files = 0
+ for f in os.listdir(argument):
+ if (f.endswith(".verification")):
+ print "Verifying file: ", f
+ files += 1
+ verifyHashes(os.path.join(argument, f))
+
+ if files == 0:
+ print "No verification files in folder: ", argument
\ No newline at end of file |