From 0d7324b7d6a2732d30021bf4eb04bce2137624d0 Mon Sep 17 00:00:00 2001
From: fragonib <devnull@localhost>
Date: Thu, 21 Oct 2010 00:10:45 +0200
Subject: New LinkSaveIn crypter plugin version

---
 module/plugins/crypter/LinkSaveIn.py | 90 ++++++++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 module/plugins/crypter/LinkSaveIn.py

(limited to 'module')

diff --git a/module/plugins/crypter/LinkSaveIn.py b/module/plugins/crypter/LinkSaveIn.py
new file mode 100644
index 000000000..d8f401f46
--- /dev/null
+++ b/module/plugins/crypter/LinkSaveIn.py
@@ -0,0 +1,90 @@
+# -*- coding: utf-8 -*-
+
+from Crypto.Cipher import AES
+from module.plugins.Crypter import Crypter
+import base64
+import binascii
+import re
+
+class LinkSaveIn(Crypter):
+    __name__ = "LinkSaveIn"
+    __type__ = "crypter"
+    __pattern__ = r"http://(www\.)?linksave.in/([a-z0-9]+)"
+    __version__ = "1.0"
+    __description__ = """LinkSave.in Crypter Plugin"""
+    __author_name__ = ("fragonib")
+    __author_mail__ = ("fragonib AT yahoo DOT es")
+
+    # Constants
+    _JK_KEY_ = "jk"
+    _CRYPTED_KEY_ = "crypted"
+        
+    def decrypt(self, pyfile):
+
+        # Request page
+        self.html = self.load(pyfile.url)
+        if not self.fileExists():
+            self.offline()
+
+        # Get package name and folder
+        (package_name, folder_name) = self.getPackageNameAndFolder()
+
+        # Get package links
+        (crypted, jk) = self.getCipherParams()
+        package_links = self.getLinks(crypted, jk)
+
+        # Pack
+        self.packages = [(package_name, package_links, folder_name)]
+
+    def fileExists(self):
+        if "<title>LinkSave.in - Error 404</title>" in self.html:
+            self.log.debug("LinkSaveIn: File not found")
+            return False
+        return True
+    
+    def getPackageNameAndFolder(self):
+        name = self.pyfile.package().name
+        folder = self.pyfile.package().folder
+        self.log.debug("LinkSaveIn: Default to pyfile name [%s] and folder [%s] for package" % (name, folder))
+        return (name, folder)
+    
+    def getCipherParams(self):
+            
+        # Get jk
+        jk_re = r'<INPUT(.*?)NAME="%s"(.*?)VALUE="(?P<jk>.*?)"' % LinkSaveIn._JK_KEY_       
+        m = re.search(jk_re, self.html)
+        jk = m.group('jk')
+        
+        # Get crypted
+        crypted_re = r'<INPUT(.*?)NAME="%s"(.*?)VALUE="(?P<crypted>.*?)"' % LinkSaveIn._CRYPTED_KEY_       
+        m = re.search(crypted_re, self.html)
+        crypted = m.group('crypted')
+
+        # Log and return
+        self.log.debug("LinkSaveIn: Javascript cipher key function [%s]" % jk)
+        return (crypted, jk)
+
+    def getLinks(self, crypted, jk):
+
+        # Get key
+        jreturn = self.js.eval("%s f()" % jk)
+        self.log.debug("LinkSaveIn: JsEngine returns value [%s]" % jreturn)
+        key = binascii.unhexlify(jreturn)
+
+        # Decode crypted
+        crypted = base64.standard_b64decode(crypted)
+
+        # Decrypt
+        Key = key
+        IV = key
+        obj = AES.new(Key, AES.MODE_CBC, IV)
+        text = obj.decrypt(crypted)
+
+        # Extract links
+        text = text.replace("\x00", "").replace("\r", "")
+        links = text.split("\n")
+        links = filter(lambda x: x != "", links)
+
+        # Log and return
+        self.log.debug("LinkSaveIn: Package has %d links" % len(links))
+        return links
\ No newline at end of file
-- 
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