Helpviewer/AdBlock/AdBlockNetwork.py

Sat, 04 Aug 2012 13:30:04 +0200

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Sat, 04 Aug 2012 13:30:04 +0200
changeset 1970
02cf3bac079b
parent 1960
d8c45fe8a1b9
child 1972
5341662d6cfb
permissions
-rw-r--r--

Rewrote huge part of AdBlock to speed up and added support for dependent AdBlock subscriptions.

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Detlev Offenbach <detlev@die-offenbachs.de>
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1 # -*- coding: utf-8 -*-
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2
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c0b5e693b0eb Updated copyright for 2012.
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3 # Copyright (c) 2009 - 2012 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Module implementing the network block class.
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8 """
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9
1112
8a7d1b9d18db Improved code quality by getting rid of star imports. That way pyflakes can do its job. A few bugs fixed found by flakes.
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10 from PyQt4.QtCore import QObject
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11 from PyQt4.QtNetwork import QNetworkRequest
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12
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13 import Helpviewer.HelpWindow
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14
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1d8dd9706f46 First commit after changing to Python 3.1.
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15 from .AdBlockBlockedNetworkReply import AdBlockBlockedNetworkReply
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16
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8cd4d08fa9f6 Made code mostly PEP 8 compliant (except all whitespace and line length).
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17
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18 class AdBlockNetwork(QObject):
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19 """
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20 Class implementing a network block.
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21 """
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22 def block(self, request):
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23 """
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24 Public method to check for a network block.
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25
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26 @return reply object (QNetworkReply) or None
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27 """
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28 url = request.url()
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parents: 1955
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29 urlString = bytes(url.toEncoded()).decode()
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parents: 1955
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30 urlDomain = url.host()
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parents: 1955
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31 urlScheme = url.scheme()
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32
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parents: 1960
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33 manager = Helpviewer.HelpWindow.HelpWindow.adBlockManager()
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parents: 1955
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34 if not manager.isEnabled() or not self.canRunOnScheme(urlScheme):
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35 return None
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36
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37 for subscription in manager.subscriptions():
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parents: 1960
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38 if subscription.isEnabled():
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parents: 1960
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39 blockedRule = subscription.match(request, urlDomain, urlString)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1960
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40 if blockedRule:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1960
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41 webPage = request.attribute(QNetworkRequest.User + 100)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1960
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42 if webPage is not None:
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1960
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43 if not self.__canBeBlocked(webPage.url()):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1960
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44 return None
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1960
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45
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46 webPage.addAdBlockRule(blockedRule, url)
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parents: 1955
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47
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02cf3bac079b Rewrote huge part of AdBlock to speed up and added support for dependent AdBlock subscriptions.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1960
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48 reply = AdBlockBlockedNetworkReply(
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parents: 1960
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49 request, subscription, blockedRule, self)
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parents: 1960
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50 return reply
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51
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52 return None
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parents: 1955
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53
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parents: 1955
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54 def canRunOnScheme(self, scheme):
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parents: 1955
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55 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1955
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56 Public method to check, if AdBlock can be performed on the scheme.
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parents: 1955
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57
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parents: 1955
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58 @param scheme scheme to check (string)
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parents: 1955
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59 @return flag indicating, that AdBlock can be performed (boolean)
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60 """
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61 return scheme not in ["data", "eric", "qthelp", "qrc", "file", "abp"]
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62
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parents: 1955
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63 def __canBeBlocked(self, url):
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parents: 1955
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64 """
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parents: 1955
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65 Private method to check, if an URL can be blocked.
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parents: 1955
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66
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parents: 1955
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67 @param url URL to be checked (QUrl)
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parents: 1955
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68 @return flag indicating, that the URL can be blocked (boolean)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1955
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69 """
1970
02cf3bac079b Rewrote huge part of AdBlock to speed up and added support for dependent AdBlock subscriptions.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 1960
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70 manager = Helpviewer.HelpWindow.HelpWindow.adBlockManager()
1960
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parents: 1955
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71 for subscription in manager.subscriptions():
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parents: 1960
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72 if subscription.isEnabled() and subscription.adBlockDisabledForUrl(url):
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parents: 1955
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73 return False
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parents: 1955
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74
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parents: 1955
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75 return True

eric ide

mercurial