From fff27d3f639c5260b234c054682559744f1a00be Mon Sep 17 00:00:00 2001
From: Walter Purcaro <vuolter@gmail.com>
Date: Sat, 27 Dec 2014 13:54:24 +0100
Subject: [LinkSaveIn] Update

---
 module/plugins/crypter/LinkSaveIn.py | 239 +----------------------------------
 1 file changed, 6 insertions(+), 233 deletions(-)

diff --git a/module/plugins/crypter/LinkSaveIn.py b/module/plugins/crypter/LinkSaveIn.py
index 842310853..e96d0438e 100644
--- a/module/plugins/crypter/LinkSaveIn.py
+++ b/module/plugins/crypter/LinkSaveIn.py
@@ -1,249 +1,22 @@
 # -*- 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 module.plugins.internal.SimpleDereferer import SimpleDereferer
 
-from Crypto.Cipher import AES
 
-from module.plugins.internal.SimpleCrypter import SimpleCrypter, create_getInfo
-from module.unescape import unescape
-
-
-class LinkSaveIn(SimpleCrypter):
+class LinkSaveIn(SimpleDereferer):
     __name__    = "LinkSaveIn"
     __type__    = "crypter"
-    __version__ = "2.02"
+    __version__ = "2.03"
 
-    __pattern__ = r'http://(?:www\.)?linksave\.in/(?P<ID>\w+)$'
+    __pattern__ = r'https?://(?:www\.)?linksave\.in/\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")]
+    __authors__     = [("Walter Purcaro", "vuolter@gmail.com")]
 
 
     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 = 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" % 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:
-                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
-
-
-getInfo = create_getInfo(LinkSaveIn)
+    OFFLINE_PATTERN = r'>(Error )?404 -'
-- 
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