From 68d662e689cd42687341c550fb6ebb74e6968d21 Mon Sep 17 00:00:00 2001
From: Walter Purcaro <vuolter@gmail.com>
Date: Mon, 8 Sep 2014 00:29:57 +0200
Subject: module -> pyload

---
 pyload/plugins/crypter/NCryptIn.py | 303 +++++++++++++++++++++++++++++++++++++
 1 file changed, 303 insertions(+)
 create mode 100644 pyload/plugins/crypter/NCryptIn.py

(limited to 'pyload/plugins/crypter/NCryptIn.py')

diff --git a/pyload/plugins/crypter/NCryptIn.py b/pyload/plugins/crypter/NCryptIn.py
new file mode 100644
index 000000000..70c541d02
--- /dev/null
+++ b/pyload/plugins/crypter/NCryptIn.py
@@ -0,0 +1,303 @@
+# -*- coding: utf-8 -*-
+
+import base64
+import binascii
+import re
+
+from Crypto.Cipher import AES
+
+from pyload.plugins.Crypter import Crypter
+from pyload.plugins.internal.CaptchaService import ReCaptcha
+
+
+class NCryptIn(Crypter):
+    __name__ = "NCryptIn"
+    __type__ = "crypter"
+    __version__ = "1.32"
+
+    __pattern__ = r'http://(?:www\.)?ncrypt.in/(?P<type>folder|link|frame)-([^/\?]+)'
+
+    __description__ = """NCrypt.in decrypter plugin"""
+    __author_name__ = ("fragonib", "stickell")
+    __author_mail__ = ("fragonib[AT]yahoo[DOT]es", "l.stickell@yahoo.it")
+
+    JK_KEY = "jk"
+    CRYPTED_KEY = "crypted"
+
+    NAME_PATTERN = r'<meta name="description" content="(?P<N>[^"]+)"'
+
+
+    def setup(self):
+        self.package = None
+        self.html = None
+        self.cleanedHtml = None
+        self.links_source_order = ["cnl2", "rsdf", "ccf", "dlc", "web"]
+        self.protection_type = None
+
+    def decrypt(self, pyfile):
+        # Init
+        self.package = pyfile.package()
+        package_links = []
+        package_name = self.package.name
+        folder_name = self.package.folder
+
+        # Deal with single links
+        if self.isSingleLink():
+            package_links.extend(self.handleSingleLink())
+
+        # Deal with folders
+        else:
+
+            # Request folder home
+            self.html = self.requestFolderHome()
+            self.cleanedHtml = self.removeHtmlCrap(self.html)
+            if not self.isOnline():
+                self.offline()
+
+            # Check for folder protection
+            if self.isProtected():
+                self.html = self.unlockProtection()
+                self.cleanedHtml = self.removeHtmlCrap(self.html)
+                self.handleErrors()
+
+            # Prepare package name and folder
+            (package_name, folder_name) = self.getPackageInfo()
+
+            # Extract package links
+            for link_source_type in self.links_source_order:
+                package_links.extend(self.handleLinkSource(link_source_type))
+                if package_links:  # use only first source which provides links
+                    break
+            package_links = set(package_links)
+
+        # Pack and return links
+        if not package_links:
+            self.fail('Could not extract any links')
+        self.packages = [(package_name, package_links, folder_name)]
+
+    def isSingleLink(self):
+        link_type = re.match(self.__pattern__, self.pyfile.url).group('type')
+        return link_type in ("link", "frame")
+
+    def requestFolderHome(self):
+        return self.load(self.pyfile.url, decode=True)
+
+    def removeHtmlCrap(self, content):
+        patterns = (r'(type="hidden".*?(name=".*?")?.*?value=".*?")',
+                    r'display:none;">(.*?)</(div|span)>',
+                    r'<div\s+class="jdownloader"(.*?)</div>',
+                    r'<table class="global">(.*?)</table>',
+                    r'<iframe\s+style="display:none(.*?)</iframe>')
+        for pattern in patterns:
+            rexpr = re.compile(pattern, re.DOTALL)
+            content = re.sub(rexpr, "", content)
+        return content
+
+    def isOnline(self):
+        if "Your folder does not exist" in self.cleanedHtml:
+            self.logDebug("File not m")
+            return False
+        return True
+
+    def isProtected(self):
+        form = re.search(r'<form.*?name.*?protected.*?>(.*?)</form>', self.cleanedHtml, re.DOTALL)
+        if form is not None:
+            content = form.group(1)
+            for keyword in ("password", "captcha"):
+                if keyword in content:
+                    self.protection_type = keyword
+                    self.logDebug("Links are %s protected" % self.protection_type)
+                    return True
+        return False
+
+    def getPackageInfo(self):
+        m = re.search(self.NAME_PATTERN, self.html)
+        if m:
+            name = folder = m.group('N').strip()
+            self.logDebug("Found name [%s] and folder [%s] in package info" % (name, folder))
+        else:
+            name = self.package.name
+            folder = self.package.folder
+            self.logDebug("Package info not m, defaulting to pyfile name [%s] and folder [%s]" % (name, folder))
+        return name, folder
+
+    def unlockProtection(self):
+
+        postData = {}
+
+        form = re.search(r'<form name="protected"(.*?)</form>', self.cleanedHtml, re.DOTALL).group(1)
+
+        # Submit package password
+        if "password" in form:
+            password = self.getPassword()
+            self.logDebug("Submitting password [%s] for protected links" % password)
+            postData['password'] = password
+
+        # Resolve anicaptcha
+        if "anicaptcha" in form:
+            self.logDebug("Captcha protected")
+            captchaUri = re.search(r'src="(/temp/anicaptcha/[^"]+)', form).group(1)
+            captcha = self.decryptCaptcha("http://ncrypt.in" + captchaUri)
+            self.logDebug("Captcha resolved [%s]" % captcha)
+            postData['captcha'] = captcha
+
+        # Resolve recaptcha
+        if "recaptcha" in form:
+            self.logDebug("ReCaptcha protected")
+            captcha_key = re.search(r'\?k=(.*?)"', form).group(1)
+            self.logDebug("Resolving ReCaptcha with key [%s]" % captcha_key)
+            recaptcha = ReCaptcha(self)
+            challenge, code = recaptcha.challenge(captcha_key)
+            postData['recaptcha_challenge_field'] = challenge
+            postData['recaptcha_response_field'] = code
+
+        # Resolve circlecaptcha
+        if "circlecaptcha" in form:
+            self.logDebug("CircleCaptcha protected")
+            captcha_img_url = "http://ncrypt.in/classes/captcha/circlecaptcha.php"
+            coords = self.decryptCaptcha(captcha_img_url, forceUser=True, imgtype="png", result_type='positional')
+            self.logDebug("Captcha resolved, coords [%s]" % str(coords))
+            postData['circle.x'] = coords[0]
+            postData['circle.y'] = coords[1]
+
+        # Unlock protection
+        postData['submit_protected'] = 'Continue to folder'
+        return self.load(self.pyfile.url, post=postData, decode=True)
+
+    def handleErrors(self):
+        if self.protection_type == "password":
+            if "This password is invalid!" in self.cleanedHtml:
+                self.logDebug("Incorrect password, please set right password on 'Edit package' form and retry")
+                self.fail("Incorrect password, please set right password on 'Edit package' form and retry")
+
+        if self.protection_type == "captcha":
+            if "The securitycheck was wrong!" in self.cleanedHtml:
+                self.logDebug("Invalid captcha, retrying")
+                self.invalidCaptcha()
+                self.retry()
+            else:
+                self.correctCaptcha()
+
+    def handleLinkSource(self, link_source_type):
+        # Check for JS engine
+        require_js_engine = link_source_type in ("cnl2", "rsdf", "ccf", "dlc")
+        if require_js_engine and not self.js:
+            self.logDebug("No JS engine available, skip %s links" % link_source_type)
+            return []
+
+        # Select suitable handler
+        if link_source_type == 'single':
+            return self.handleSingleLink()
+        if link_source_type == 'cnl2':
+            return self.handleCNL2()
+        elif link_source_type in ("rsdf", "ccf", "dlc"):
+            return self.handleContainer(link_source_type)
+        elif link_source_type == "web":
+            return self.handleWebLinks()
+        else:
+            self.fail('unknown source type "%s" (this is probably a bug)' % link_source_type)
+
+    def handleSingleLink(self):
+
+        self.logDebug("Handling Single link")
+        package_links = []
+
+        # Decrypt single link
+        decrypted_link = self.decryptLink(self.pyfile.url)
+        if decrypted_link:
+            package_links.append(decrypted_link)
+
+        return package_links
+
+    def handleCNL2(self):
+
+        self.logDebug("Handling CNL2 links")
+        package_links = []
+
+        if 'cnl2_output' in self.cleanedHtml:
+            try:
+                (vcrypted, vjk) = self._getCipherParams()
+                for (crypted, jk) in zip(vcrypted, vjk):
+                    package_links.extend(self._getLinks(crypted, jk))
+            except:
+                self.fail("Unable to decrypt CNL2 links")
+
+        return package_links
+
+    def handleContainers(self):
+
+        self.logDebug("Handling Container links")
+        package_links = []
+
+        pattern = r"/container/(rsdf|dlc|ccf)/([a-z0-9]+)"
+        containersLinks = re.findall(pattern, self.html)
+        self.logDebug("Decrypting %d Container links" % len(containersLinks))
+        for containerLink in containersLinks:
+            link = "http://ncrypt.in/container/%s/%s.%s" % (containerLink[0], containerLink[1], containerLink[0])
+            package_links.append(link)
+
+        return package_links
+
+    def handleWebLinks(self):
+
+        self.logDebug("Handling Web links")
+        pattern = r"(http://ncrypt\.in/link-.*?=)"
+        links = re.findall(pattern, self.html)
+
+        package_links = []
+        self.logDebug("Decrypting %d Web links" % len(links))
+        for i, link in enumerate(links):
+            self.logDebug("Decrypting Web link %d, %s" % (i + 1, link))
+            decrypted_link = self.decrypt(link)
+            if decrypted_link:
+                package_links.append(decrypted_link)
+
+        return package_links
+
+    def decryptLink(self, link):
+        try:
+            url = link.replace("link-", "frame-")
+            link = self.load(url, just_header=True)['location']
+            return link
+        except Exception, detail:
+            self.logDebug("Error decrypting link %s, %s" % (link, detail))
+
+    def _getCipherParams(self):
+
+        pattern = r'<input.*?name="%s".*?value="(.*?)"'
+
+        # Get jk
+        jk_re = pattern % NCryptIn.JK_KEY
+        vjk = re.findall(jk_re, self.html)
+
+        # Get crypted
+        crypted_re = pattern % NCryptIn.CRYPTED_KEY
+        vcrypted = re.findall(crypted_re, self.html)
+
+        # Log and return
+        self.logDebug("Detected %d crypted blocks" % len(vcrypted))
+        return vcrypted, vjk
+
+    def _getLinks(self, crypted, jk):
+        # Get key
+        jreturn = self.js.eval("%s f()" % jk)
+        self.logDebug("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.logDebug("Block has %d links" % len(links))
+        return links
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