initial commit

pwgen.py

@@ -0,0 +1,74 @@
+#!/usr/bin/python3
+from math import *
+import random
+import string
+import sys
+import os
+
+from common import *
+from longrandom import LongRandom
+
+print("Content-Type: text/html")
+print()
+
+qs = os.environ.get('QUERY_STRING', None)
+if not qs:
+	use_lcase = use_digits = 1
+	use_punct = use_ucase = 0
+	passlen = 64
+	length_is_bits = 1
+	extra_symbols = ''
+	excludes = True
+else:
+	form = cgi.FieldStorage()
+	passlen = form_get(form, 'passlen', 12, int)
+	length_is_bits = form_get(form, 'length_is_bits', 0, int)
+	use_ucase = form_get(form, 'use_ucase', 0, int)
+	use_lcase = form_get(form, 'use_lcase', 0, int)
+	use_digits = form_get(form, 'use_digits', 0, int)
+	use_punct = form_get(form, 'use_punct', 0, int)
+	extra_symbols = form_get(form, 'extra_symbols', '', str)
+	excludes = form_get(form, 'excludes', 0, int)
+
+dumpfile('header.html', {'type': 'Password'})
+dict = EvalDict(vars())
+here = os.path.dirname(__file__)
+form_path = os.path.join(here, 'pwform.html')
+with open(form_path, encoding="utf-8") as f:
+    sys.stdout.write(f.read() % dict)
+
+
+chars = extra_symbols
+if use_lcase: chars += 'abcdefghijklmnopqrstuvwxyz'
+if use_ucase: chars += 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+if use_digits: chars += '0123456789'
+if use_punct: chars += '~`!@#$%^&*()-_=+[]{}\\|;:,./<>?\'"'
+if excludes:
+    for char in '1lI0O':
+        chars = chars.replace(char, '')
+
+charbits = log(len(chars)) / log(2)
+if length_is_bits:
+	passlen = int(passlen // charbits + 1)
+passbits = passlen * charbits
+
+table_start()
+row('Password Length', passlen)
+row('Bits per character', '%.2f'%charbits)
+row('Effective password bits', int(passbits))
+row('Total possible combinations',
+	commafy(len(chars) ** passlen))
+table_end()
+
+randval = LongRandom()
+
+table_start()
+print("<tr><th>Password</th></tr>")
+for i in range(10):
+	password = ''.join([ chars[randval.get(len(chars))]
+						 for j in range(passlen) ])
+
+	print("<tr><td><tt>%s</tt></td></tr>" % escape(password))
+
+table_end()
+dumpfile('footer.html')