Initial commit

receiver/challenges.old/Crawlback.py

@@ -0,0 +1,38 @@
+from .Challenge import Challenge
+
+import requests
+import os
+
+MOCK_URL = 'http://google.com'
+MOCK_DATA = '<HTML><HEAD><meta http-equiv="content-type" content="text/html;charset=utf-8">'
+
+class Crawlback(Challenge):
+    flag_location = 'flags/crawlback.txt'
+    history_location = 'history/crawlback.txt'
+
+    def distribute(self, flag):
+        try:
+            with open(self.flag_location, 'w') as f:
+                f.write(flag)
+
+            with open(self.history_location, 'a') as f:
+                f.write(flag + '\n')
+
+            self.logger.info(f'Flag {flag} written to {self.flag_location}')
+            return True
+
+        except Exception as e:
+            self.logger.error(f'Could not write flag to {self.flag_location}: {e}')
+            return False
+
+    def check(self):
+        try:
+            r = requests.post(f"http://localhost:{self.port}/crawlback.php", data={'url': MOCK_URL})
+
+            assert r.text.split('\n').pop(0) == MOCK_DATA
+
+            return True
+
+        except Exception as e:
+            self.logger.error(f'Could not check crawlback: {e}')
+            return False