From ce1c2b6b05c08b669357947e61ae40efce7fc50f Mon Sep 17 00:00:00 2001
From: Walter Purcaro <vuolter@gmail.com>
Date: Mon, 16 Feb 2015 10:46:28 +0100
Subject: module temp

---
 module/plugins/crypter/LinkSaveIn.py | 246 +++++++++++++++++++++++++++++++++++
 1 file changed, 246 insertions(+)
 create mode 100644 module/plugins/crypter/LinkSaveIn.py

(limited to 'module/plugins/crypter/LinkSaveIn.py')

diff --git a/module/plugins/crypter/LinkSaveIn.py b/module/plugins/crypter/LinkSaveIn.py
new file mode 100644
index 000000000..9b4af05f2
--- /dev/null
+++ b/module/plugins/crypter/LinkSaveIn.py
@@ -0,0 +1,246 @@
+# -*- coding: utf-8 -*-
+#
+# * cnl2 and web links are skipped if JS is not available (instead of failing the package)
+# * only best available link source is used (priority: cnl2>rsdf>ccf>dlc>web
+
+import base64
+import binascii
+import re
+
+from Crypto.Cipher import AES
+
+from pyload.plugin.internal.SimpleCrypter import SimpleCrypter
+from pyload.utils import html_unescape
+
+
+class LinkSaveIn(SimpleCrypter):
+    __name__    = "LinkSaveIn"
+    __type__    = "crypter"
+    __version__ = "2.02"
+
+    __pattern__ = r'http://(?:www\.)?linksave\.in/(?P<id>\w+)$'
+    __config__  = [("use_subfolder", "bool", "Save package to subfolder", True),
+                   ("subfolder_per_package", "bool", "Create a subfolder for each package", True)]
+
+    __description__ = """LinkSave.in decrypter plugin"""
+    __license__     = "GPLv3"
+    __authors__     = [("fragonib", "fragonib[AT]yahoo[DOT]es")]
+
+
+    COOKIES = [("linksave.in", "Linksave_Language", "english")]
+
+    # Constants
+    _JK_KEY_ = "jk"
+    _CRYPTED_KEY_ = "crypted"
+
+
+    def setup(self):
+        self.fileid = None
+        self.captcha = False
+        self.package = None
+        self.preferred_sources = ["cnl2", "rsdf", "ccf", "dlc", "web"]
+
+
+    def decrypt(self, pyfile):
+        # Init
+        self.package = pyfile.package()
+        self.fileid = re.match(self.__pattern__, pyfile.url).group('id')
+
+        # Request package
+        self.html = self.load(pyfile.url)
+        if not self.isOnline():
+            self.offline()
+
+        # Check for protection
+        if self.isPasswordProtected():
+            self.unlockPasswordProtection()
+            self.handleErrors()
+
+        if self.isCaptchaProtected():
+            self.captcha = True
+            self.unlockCaptchaProtection()
+            self.handleErrors()
+
+        # Get package name and folder
+        (package_name, folder_name) = self.getPackageInfo()
+
+        # Extract package links
+        package_links = []
+        for type_ in self.preferred_sources:
+            package_links.extend(self.handleLinkSource(type_))
+            if package_links:  # use only first source which provides links
+                break
+        package_links = set(package_links)
+
+        # Pack
+        if package_links:
+            self.packages = [(package_name, package_links, folder_name)]
+
+
+    def isOnline(self):
+        if "<big>Error 404 - Folder not found!</big>" in self.html:
+            self.logDebug("File not found")
+            return False
+        return True
+
+
+    def isPasswordProtected(self):
+        if re.search(r'''<input.*?type="password"''', self.html):
+            self.logDebug("Links are password protected")
+            return True
+
+
+    def isCaptchaProtected(self):
+        if "<b>Captcha:</b>" in self.html:
+            self.logDebug("Links are captcha protected")
+            return True
+        return False
+
+
+    def unlockPasswordProtection(self):
+        password = self.getPassword()
+        self.logDebug("Submitting password [%s] for protected links" % password)
+        post = {"id": self.fileid, "besucherpasswort": password, 'login': 'submit'}
+        self.html = self.load(self.pyfile.url, post=post)
+
+
+    def unlockCaptchaProtection(self):
+        captcha_hash = re.search(r'name="hash" value="([^"]+)', self.html).group(1)
+        captcha_url = re.search(r'src=".(/captcha/cap.php\?hsh=[^"]+)', self.html).group(1)
+        captcha_code = self.decryptCaptcha("http://linksave.in" + captcha_url, forceUser=True)
+        self.html = self.load(self.pyfile.url, post={"id": self.fileid, "hash": captcha_hash, "code": captcha_code})
+
+
+    def getPackageInfo(self):
+        name = self.pyfile.package().name
+        folder = self.pyfile.package().folder
+        self.logDebug("Defaulting to pyfile name [%s] and folder [%s] for package" % (name, folder))
+        return name, folder
+
+
+    def handleErrors(self):
+        if "The visitorpassword you have entered is wrong" in self.html:
+            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.captcha:
+            if "Wrong code. Please retry" in self.html:
+                self.invalidCaptcha()
+                self.retry()
+            else:
+                self.correctCaptcha()
+
+
+    def handleLinkSource(self, type_):
+        if type_ == "cnl2":
+            return self.handleCNL2()
+        elif type_ in ("rsdf", "ccf", "dlc"):
+            return self.handleContainer(type_)
+        elif type_ == "web":
+            return self.handleWebLinks()
+        else:
+            self.error('Unknown source type "%s" (this is probably a bug)' % type_)
+
+
+    def handleWebLinks(self):
+        package_links = []
+        self.logDebug("Search for Web links")
+        if not self.js:
+            self.logDebug("No JS -> skip Web links")
+        else:
+            #@TODO: Gather paginated web links
+            pattern = r'<a href="http://linksave\.in/(\w{43})"'
+            ids = re.findall(pattern, self.html)
+            self.logDebug("Decrypting %d Web links" % len(ids))
+            for i, weblink_id in enumerate(ids):
+                try:
+                    webLink = "http://linksave.in/%s" % weblink_id
+
+                    self.logDebug("Decrypting Web link %d, %s" % (i + 1, webLink))
+
+                    fwLink = "http://linksave.in/fw-%s" % weblink_id
+                    res = self.load(fwLink)
+
+                    jscode = re.findall(r'<script type="text/javascript">(.*)</script>', res)[-1]
+                    jseval = self.js.eval("document = { write: function(e) { return e; } }; %s" % jscode)
+                    dlLink = re.search(r'http://linksave\.in/dl-\w+', jseval).group(0)
+                    self.logDebug("JsEngine returns value [%s] for redirection link" % dlLink)
+
+                    res = self.load(dlLink)
+                    link = html_unescape(re.search(r'<iframe src="(.+?)"', res).group(1))
+
+                    package_links.append(link)
+
+                except Exception, detail:
+                    self.logDebug("Error decrypting Web link %s, %s" % (webLink, detail))
+
+        return package_links
+
+
+    def handleContainer(self, type_):
+        package_links = []
+        type_ = type_.lower()
+        self.logDebug("Seach for %s Container links" % type_.upper())
+        if not type_.isalnum():  # check to prevent broken re-pattern (cnl2,rsdf,ccf,dlc,web are all alpha-numeric)
+            self.error('Unknown container type "%s" (this is probably a bug)' % type_)
+        pattern = r'\(\'%s_link\'\).href=unescape\(\'(.*?\.%s)\'\)' % (type_, type_)
+        containersLinks = re.findall(pattern, self.html)
+        self.logDebug("Found %d %s Container links" % (len(containersLinks), type_.upper()))
+        for containerLink in containersLinks:
+            link = "http://linksave.in/%s" % html_unescape(containerLink)
+            package_links.append(link)
+        return package_links
+
+
+    def handleCNL2(self):
+        package_links = []
+        self.logDebug("Search for CNL2 links")
+        if not self.js:
+            self.logDebug("No JS -> skip CNL2 links")
+        elif 'cnl2_load' in self.html:
+            try:
+                (vcrypted, vjk) = self._getCipherParams()
+                for (crypted, jk) in zip(vcrypted, vjk):
+                    package_links.extend(self._getLinks(crypted, jk))
+            except Exception:
+                self.fail(_("Unable to decrypt CNL2 links"))
+        return package_links
+
+
+    def _getCipherParams(self):
+        # Get jk
+        jk_re = r'<INPUT.*?NAME="%s".*?VALUE="(.*?)"' % LinkSaveIn._JK_KEY_
+        vjk = re.findall(jk_re, self.html)
+
+        # Get crypted
+        crypted_re = r'<INPUT.*?NAME="%s".*?VALUE="(.*?)"' % LinkSaveIn._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("Package has %d links" % len(links))
+        return links
-- 
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