--crack supports hashcat, aircrack, john, cowpatty, and pyrit.

* Still not "print" option for --crack.
* Checks hashcat for devices, uses --force if no devices are found.
* Interrupting --crack stops entire process, not just a single crack attempt
* Changed wordlist location, hopefully completes #102.

wifite/tools/aircrack.py

@@ -7,6 +7,7 @@ from ..util.input import xrange
 from ..config import Configuration
 
 import os
+import re
 
 class Aircrack(Dependency):
     dependency_required = True
@@ -77,6 +78,70 @@ class Aircrack(Dependency):
         if os.path.exists(self.cracked_file):
             os.remove(self.cracked_file)
 
+
+    @staticmethod
+    def crack_handshake(handshake, show_command=False):
+        from ..util.color import Color
+        from ..util.timer import Timer
+        '''Tries to crack a handshake. Returns WPA key if found, otherwise None.'''
+
+        key_file = Configuration.temp('wpakey.txt')
+        command = [
+            'aircrack-ng',
+            '-a', '2',
+            '-w', Configuration.wordlist,
+            '--bssid', handshake.bssid,
+            '-l', key_file,
+            handshake.capfile
+        ]
+        if show_command:
+            Color.pl('{+} {D}Running: {W}{P}%s{W}' % ' '.join(command))
+        crack_proc = Process(command)
+
+        # Report progress of cracking
+        aircrack_nums_re = re.compile(r'(\d+)/(\d+) keys tested.*\(([\d.]+)\s+k/s')
+        aircrack_key_re  = re.compile(r'Current passphrase:\s*([^\s].*[^\s])\s*$')
+        num_tried = num_total = 0
+        percent = num_kps = 0.0
+        eta_str = 'unknown'
+        current_key = ''
+        while crack_proc.poll() is None:
+            line = crack_proc.pid.stdout.readline()
+            match_nums = aircrack_nums_re.search(line.decode('utf-8'))
+            match_keys = aircrack_key_re.search(line.decode('utf-8'))
+            if match_nums:
+                num_tried = int(match_nums.group(1))
+                num_total = int(match_nums.group(2))
+                num_kps = float(match_nums.group(3))
+                eta_seconds = (num_total - num_tried) / num_kps
+                eta_str = Timer.secs_to_str(eta_seconds)
+                percent = 100.0 * float(num_tried) / float(num_total)
+            elif match_keys:
+                current_key = match_keys.group(1)
+            else:
+                continue
+
+            status = '\r{+} {C}Cracking WPA Handshake: %0.2f%%{W}' % percent
+            status += ' ETA: {C}%s{W}' % eta_str
+            status += ' @ {C}%0.1fkps{W}' % num_kps
+            #status += ' ({C}%d{W}/{C}%d{W} keys)' % (num_tried, num_total)
+            status += ' (current key: {C}%s{W})' % current_key
+            Color.clear_entire_line()
+            Color.p(status)
+
+        Color.pl('')
+
+        # Check crack result
+        if os.path.exists(key_file):
+            with open(key_file, 'r') as fid:
+                key = fid.read().strip()
+            os.remove(key_file)
+
+            return key
+        else:
+            return None
+
+
 if __name__ == '__main__':
     (hexkey, asciikey) = Aircrack._hex_and_ascii_key('A1B1C1D1E1')
     assert hexkey == 'A1:B1:C1:D1:E1', 'hexkey was "%s", expected "A1:B1:C1:D1:E1"' % hexkey