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Copy pathGreaseMonkeyManager.py
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315 lines (252 loc) · 10.2 KB
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# -*- coding: utf-8 -*-
# Copyright (c) 2012 - 2015 Detlev Offenbach <detlev@die-offenbachs.de>
#
"""
Module implementing the manager for GreaseMonkey scripts.
"""
from __future__ import unicode_literals
import os
from PyQt5.QtCore import pyqtSignal, QObject, QTimer, QFile, QDir, QSettings, \
QUrl, QByteArray
from PyQt5.QtNetwork import QNetworkAccessManager
import Utilities
import Preferences
class GreaseMonkeyManager(QObject):
"""
Class implementing the manager for GreaseMonkey scripts.
"""
scriptsChanged = pyqtSignal()
def __init__(self, parent=None):
"""
Constructor
@param parent reference to the parent object (QObject)
"""
super(GreaseMonkeyManager, self).__init__(parent)
self.__disabledScripts = []
self.__endScripts = []
self.__startScripts = []
self.__downloaders = []
QTimer.singleShot(0, self.__load)
def showConfigurationDialog(self, parent=None):
"""
Public method to show the configuration dialog.
@param parent reference to the parent widget (QWidget)
"""
from .GreaseMonkeyConfiguration.GreaseMonkeyConfigurationDialog \
import GreaseMonkeyConfigurationDialog
self.__configDiaolg = GreaseMonkeyConfigurationDialog(self, parent)
self.__configDiaolg.show()
def downloadScript(self, request):
"""
Public method to download a GreaseMonkey script.
@param request reference to the request (QNetworkRequest)
"""
from .GreaseMonkeyDownloader import GreaseMonkeyDownloader
downloader = GreaseMonkeyDownloader(request, self)
downloader.finished.connect(self.__downloaderFinished)
self.__downloaders.append(downloader)
def __downloaderFinished(self):
"""
Private slot to handle the completion of a script download.
"""
downloader = self.sender()
if downloader is None or downloader not in self.__downloaders:
return
self.__downloaders.remove(downloader)
def scriptsDirectory(self):
"""
Public method to get the path of the scripts directory.
@return path of the scripts directory (string)
"""
return os.path.join(
Utilities.getConfigDir(), "browser", "greasemonkey")
def requireScriptsDirectory(self):
"""
Public method to get the path of the scripts directory.
@return path of the scripts directory (string)
"""
return os.path.join(self.scriptsDirectory(), "requires")
def requireScripts(self, urlList):
"""
Public method to get the sources of all required scripts.
@param urlList list of URLs (list of string)
@return sources of all required scripts (string)
"""
requiresDir = QDir(self.requireScriptsDirectory())
if not requiresDir.exists() or len(urlList) == 0:
return ""
script = ""
settings = QSettings(
os.path.join(self.requireScriptsDirectory(), "requires.ini"),
QSettings.IniFormat)
settings.beginGroup("Files")
for url in urlList:
if settings.contains(url):
fileName = settings.value(url)
try:
f = open(fileName, "r", encoding="utf-8")
source = f.read()
f.close()
except (IOError, OSError):
source = ""
script += source.strip() + "\n"
return script
def saveConfiguration(self):
"""
Public method to save the configuration.
"""
Preferences.setHelp("GreaseMonkeyDisabledScripts",
self.__disabledScripts)
def allScripts(self):
"""
Public method to get a list of all scripts.
@return list of all scripts (list of GreaseMonkeyScript)
"""
return self.__startScripts[:] + self.__endScripts[:]
def containsScript(self, fullName):
"""
Public method to check, if the given script exists.
@param fullName full name of the script (string)
@return flag indicating the existence (boolean)
"""
for script in self.__startScripts:
if script.fullName() == fullName:
return True
for script in self.__endScripts:
if script.fullName() == fullName:
return True
return False
def enableScript(self, script):
"""
Public method to enable the given script.
@param script script to be enabled (GreaseMonkeyScript)
"""
script.setEnabled(True)
fullName = script.fullName()
if fullName in self.__disabledScripts:
self.__disabledScripts.remove(fullName)
def disableScript(self, script):
"""
Public method to disable the given script.
@param script script to be disabled (GreaseMonkeyScript)
"""
script.setEnabled(False)
fullName = script.fullName()
if fullName not in self.__disabledScripts:
self.__disabledScripts.append(fullName)
def addScript(self, script):
"""
Public method to add a script.
@param script script to be added (GreaseMonkeyScript)
@return flag indicating success (boolean)
"""
if not script:
return False
from .GreaseMonkeyScript import GreaseMonkeyScript
if script.startAt() == GreaseMonkeyScript.DocumentStart:
self.__startScripts.append(script)
else:
self.__endScripts.append(script)
self.scriptsChanged.emit()
return True
def removeScript(self, script):
"""
Public method to remove a script.
@param script script to be removed (GreaseMonkeyScript)
@return flag indicating success (boolean)
"""
if not script:
return False
from .GreaseMonkeyScript import GreaseMonkeyScript
if script.startAt() == GreaseMonkeyScript.DocumentStart:
try:
self.__startScripts.remove(script)
except ValueError:
pass
else:
try:
self.__endScripts.remove(script)
except ValueError:
pass
fullName = script.fullName()
if fullName in self.__disabledScripts:
self.__disabledScripts.remove(fullName)
QFile.remove(script.fileName())
self.scriptsChanged.emit()
return True
def canRunOnScheme(self, scheme):
"""
Public method to check, if scripts can be run on a scheme.
@param scheme scheme to check (string)
@return flag indicating, that scripts can be run (boolean)
"""
return scheme in ["http", "https", "data", "ftp"]
def pageLoadStarted(self):
"""
Public slot to handle the start of loading a page.
"""
frame = self.sender()
if not frame:
return
urlScheme = frame.url().scheme()
urlString = bytes(frame.url().toEncoded()).decode()
if not self.canRunOnScheme(urlScheme):
return
from .GreaseMonkeyJavaScript import bootstrap_js
for script in self.__startScripts:
if script.match(urlString):
frame.evaluateJavaScript(bootstrap_js + script.script())
for script in self.__endScripts:
if script.match(urlString):
javascript = 'window.addEventListener("DOMContentLoaded",' \
'function(e) {{ {0} }}, false);'.format(
bootstrap_js + script.script())
frame.evaluateJavaScript(javascript)
def __load(self):
"""
Private slot to load the available scripts into the manager.
"""
scriptsDir = QDir(self.scriptsDirectory())
if not scriptsDir.exists():
scriptsDir.mkpath(self.scriptsDirectory())
if not scriptsDir.exists("requires"):
scriptsDir.mkdir("requires")
self.__disabledScripts = \
Preferences.getHelp("GreaseMonkeyDisabledScripts")
from .GreaseMonkeyScript import GreaseMonkeyScript
for fileName in scriptsDir.entryList(["*.js"], QDir.Files):
absolutePath = scriptsDir.absoluteFilePath(fileName)
script = GreaseMonkeyScript(self, absolutePath)
if script.fullName() in self.__disabledScripts:
script.setEnabled(False)
if script.startAt() == GreaseMonkeyScript.DocumentStart:
self.__startScripts.append(script)
else:
self.__endScripts.append(script)
def connectPage(self, page):
"""
Public method to allow the GreaseMonkey manager to connect to the page.
@param page reference to the web page (HelpWebPage)
"""
page.mainFrame().javaScriptWindowObjectCleared.connect(
self.pageLoadStarted)
def createRequest(self, op, request, outgoingData=None):
"""
Public method to create a request.
@param op the operation to be performed
(QNetworkAccessManager.Operation)
@param request reference to the request object (QNetworkRequest)
@param outgoingData reference to an IODevice containing data to be sent
(QIODevice)
@return reference to the created reply object (QNetworkReply)
"""
if op == QNetworkAccessManager.GetOperation and \
request.rawHeader(b"X-Eric6-UserLoadAction") == QByteArray(b"1"):
urlString = request.url().toString(
QUrl.RemoveFragment | QUrl.RemoveQuery)
if urlString.endswith(".user.js"):
self.downloadScript(request)
from Helpviewer.Network.EmptyNetworkReply import \
EmptyNetworkReply
return EmptyNetworkReply(self)
return None
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