blacklist a words in /usr/share/dict and /usr/local/share/dict

Signed-off-by: Mattias Andrée <maandree@operamail.com>

2 files changed, 16 insertions, 0 deletions

diff --git a/info/passcheck.texinfo b/info/passcheck.texinfo
index ad1c879..90da502 100644
--- a/info/passcheck.texinfo
+++ b/info/passcheck.texinfo
@@ -98,6 +98,10 @@ the strength of a passphrase:
 The passphrase is not a commonly use passphrase.
 Currently a top-1000 list is used.
 @item
+The passphrase is not a word listed in a file
+inside either ofthe directory @file{/usr/share/dict/}
+abd @file{/usr/local/share/dict/}.
+@item
 The degree to which characters are mixed.
 @item
 The classes of used characters. For example non-ASCII
diff --git a/passcheck.py b/passcheck.py
index 0cfdd32..e8776c8 100755
--- a/passcheck.py
+++ b/passcheck.py
@@ -19,6 +19,7 @@
 # 
 
 import sys
+import os
 
 
 def _class(char):
@@ -114,6 +115,17 @@ def evaluate(data):
 blacklist = None
 with open('blacklist', 'rb') as file:
     blacklist = set(file.read().decode('utf-8', 'replace').split('\n'))
+for directory in ['/usr/share/dict/', '/usr/local/share/dict/']:
+    dictionaries = None
+    try:
+        dictionaries = os.listdir(directory)
+    except FileNotFoundError:
+        pass
+    if dictionaries is not None:
+        for dictionary in dictionaries:
+            if not os.path.isdir(directory + dictionary):
+                with open(directory + dictionary, 'rb') as file:
+                    blacklist.update(set(file.read().decode('utf-8', 'replace').split('\n')))
 
 
 raw = ('--raw' in sys.argv[1:]) or ('-r' in sys.argv[1:])