Viewing file:  DesktopEntry.py (15.59 KB) -rw-r--r--
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"""
Complete implementation of the XDG Desktop Entry Specification Version 1.0
http://standards.freedesktop.org/desktop-entry-spec/
Not supported:
- Encoding: Legacy Mixed
- Does not check exec parameters
- Does not check URL's
- Does not completly validate deprecated/kde items
- Does not completly check categories
"""
from xdg.IniFile import *
from xdg.BaseDirectory import *
import os.path
class DesktopEntry(IniFile):
"Class to parse and validate DesktopEntries"
defaultGroup = 'Desktop Entry'
def __init__(self, filename=None):
self.content = dict()
if filename and os.path.exists(filename):
self.parse(filename)
elif filename:
self.new(filename)
def __str__(self):
return self.getName()
def parse(self, file):
IniFile.parse(self, file, ["Desktop Entry", "KDE Desktop Entry"])
# start standard keys
def getType(self):
return self.get('Type')
""" @deprecated, use getVersionString instead """
def getVersion(self):
return self.get('Version', type="numeric")
def getVersionString(self):
return self.get('Version')
def getName(self):
return self.get('Name', locale=True)
def getGenericName(self):
return self.get('GenericName', locale=True)
def getNoDisplay(self):
return self.get('NoDisplay', type="boolean")
def getComment(self):
return self.get('Comment', locale=True)
def getIcon(self):
return self.get('Icon', locale=True)
def getHidden(self):
return self.get('Hidden', type="boolean")
def getOnlyShowIn(self):
return self.get('OnlyShowIn', list=True)
def getNotShowIn(self):
return self.get('NotShowIn', list=True)
def getTryExec(self):
return self.get('TryExec')
def getExec(self):
return self.get('Exec')
def getPath(self):
return self.get('Path')
def getTerminal(self):
return self.get('Terminal', type="boolean")
""" @deprecated, use getMimeTypes instead """
def getMimeType(self):
return self.get('MimeType', list=True, type="regex")
def getMimeTypes(self):
return self.get('MimeType', list=True)
def getCategories(self):
return self.get('Categories', list=True)
def getStartupNotify(self):
return self.get('StartupNotify', type="boolean")
def getStartupWMClass(self):
return self.get('StartupWMClass')
def getURL(self):
return self.get('URL')
# end standard keys
# start kde keys
def getServiceTypes(self):
return self.get('ServiceTypes', list=True)
def getDocPath(self):
return self.get('DocPath')
def getKeywords(self):
return self.get('Keywords', list=True, locale=True)
def getInitialPreference(self):
return self.get('InitialPreference')
def getDev(self):
return self.get('Dev')
def getFSType(self):
return self.get('FSType')
def getMountPoint(self):
return self.get('MountPoint')
def getReadonly(self):
return self.get('ReadOnly', type="boolean")
def getUnmountIcon(self):
return self.get('UnmountIcon', locale=True)
# end kde keys
# start deprecated keys
def getMiniIcon(self):
return self.get('MiniIcon', locale=True)
def getTerminalOptions(self):
return self.get('TerminalOptions')
def getDefaultApp(self):
return self.get('DefaultApp')
def getProtocols(self):
return self.get('Protocols', list=True)
def getExtensions(self):
return self.get('Extensions', list=True)
def getBinaryPattern(self):
return self.get('BinaryPattern')
def getMapNotify(self):
return self.get('MapNotify')
def getEncoding(self):
return self.get('Encoding')
def getSwallowTitle(self):
return self.get('SwallowTitle', locale=True)
def getSwallowExec(self):
return self.get('SwallowExec')
def getSortOrder(self):
return self.get('SortOrder', list=True)
def getFilePattern(self):
return self.get('FilePattern', type="regex")
def getActions(self):
return self.get('Actions', list=True)
# end deprecated keys
# desktop entry edit stuff
def new(self, filename):
if os.path.splitext(filename)[1] == ".desktop":
type = "Application"
elif os.path.splitext(filename)[1] == ".directory":
type = "Directory"
else:
raise ParsingError("Unknown extension", filename)
self.content = dict()
self.addGroup(self.defaultGroup)
self.set("Type", type)
self.filename = filename
# end desktop entry edit stuff
# validation stuff
def checkExtras(self):
# header
if self.defaultGroup == "KDE Desktop Entry":
self.warnings.append('[KDE Desktop Entry]-Header is deprecated')
# file extension
if self.fileExtension == ".kdelnk":
self.warnings.append("File extension .kdelnk is deprecated")
elif self.fileExtension != ".desktop" and self.fileExtension != ".directory":
self.warnings.append('Unknown File extension')
# Type
try:
self.type = self.content[self.defaultGroup]["Type"]
except KeyError:
self.errors.append("Key 'Type' is missing")
# Name
try:
self.name = self.content[self.defaultGroup]["Name"]
except KeyError:
self.errors.append("Key 'Name' is missing")
def checkGroup(self, group):
# check if group header is valid
if not (group == self.defaultGroup \
or re.match("^\Desktop Action [a-zA-Z]+\$", group) \
or (re.match("^\X-", group) and group.decode("utf-8", "ignore").encode("ascii", 'ignore') == group)):
self.errors.append("Invalid Group name: %s" % group)
else:
#OnlyShowIn and NotShowIn
if self.content[group].has_key("OnlyShowIn") and self.content[group].has_key("NotShowIn"):
self.errors.append("Group may either have OnlyShowIn or NotShowIn, but not both")
def checkKey(self, key, value, group):
# standard keys
if key == "Type":
if value == "ServiceType" or value == "Service" or value == "FSDevice":
self.warnings.append("Type=%s is a KDE extension" % key)
elif value == "MimeType":
self.warnings.append("Type=MimeType is deprecated")
elif not (value == "Application" or value == "Link" or value == "Directory"):
self.errors.append("Value of key 'Type' must be Application, Link or Directory, but is '%s'" % value)
if self.fileExtension == ".directory" and not value == "Directory":
self.warnings.append("File extension is .directory, but Type is '%s'" % value)
elif self.fileExtension == ".desktop" and value == "Directory":
self.warnings.append("Files with Type=Directory should have the extension .directory")
if value == "Application":
if not self.content[group].has_key("Exec"):
self.warnings.append("Type=Application needs 'Exec' key")
if value == "Link":
if not self.content[group].has_key("URL"):
self.warnings.append("Type=Application needs 'Exec' key")
elif key == "Version":
self.checkValue(key, value)
elif re.match("^Name"+xdg.Locale.regex+"$", key):
pass # locale string
elif re.match("^GenericName"+xdg.Locale.regex+"$", key):
pass # locale string
elif key == "NoDisplay":
self.checkValue(key, value, type="boolean")
elif re.match("^Comment"+xdg.Locale.regex+"$", key):
pass # locale string
elif re.match("^Icon"+xdg.Locale.regex+"$", key):
self.checkValue(key, value)
elif key == "Hidden":
self.checkValue(key, value, type="boolean")
elif key == "OnlyShowIn":
self.checkValue(key, value, list=True)
self.checkOnlyShowIn(value)
elif key == "NotShowIn":
self.checkValue(key, value, list=True)
self.checkOnlyShowIn(value)
elif key == "TryExec":
self.checkValue(key, value)
self.checkType(key, "Application")
elif key == "Exec":
self.checkValue(key, value)
self.checkType(key, "Application")
elif key == "Path":
self.checkValue(key, value)
self.checkType(key, "Application")
elif key == "Terminal":
self.checkValue(key, value, type="boolean")
self.checkType(key, "Application")
elif key == "MimeType":
self.checkValue(key, value, list=True)
self.checkType(key, "Application")
elif key == "Categories":
self.checkValue(key, value)
self.checkType(key, "Application")
self.checkCategorie(value)
elif key == "StartupNotify":
self.checkValue(key, value, type="boolean")
self.checkType(key, "Application")
elif key == "StartupWMClass":
self.checkType(key, "Application")
elif key == "URL":
self.checkValue(key, value)
self.checkType(key, "URL")
# kde extensions
elif key == "ServiceTypes":
self.checkValue(key, value, list=True)
self.warnings.append("Key '%s' is a KDE extension" % key)
elif key == "DocPath":
self.checkValue(key, value)
self.warnings.append("Key '%s' is a KDE extension" % key)
elif re.match("^Keywords"+xdg.Locale.regex+"$", key):
self.checkValue(key, value, list=True)
self.warnings.append("Key '%s' is a KDE extension" % key)
elif key == "InitialPreference":
self.checkValue(key, value, type="numeric")
self.warnings.append("Key '%s' is a KDE extension" % key)
elif key == "Dev":
self.checkValue(key, value)
self.checkType(key, "FSDevice")
self.warnings.append("Key '%s' is a KDE extension" % key)
elif key == "FSType":
self.checkValue(key, value)
self.checkType(key, "FSDevice")
self.warnings.append("Key '%s' is a KDE extension" % key)
elif key == "MountPoint":
self.checkValue(key, value)
self.checkType(key, "FSDevice")
self.warnings.append("Key '%s' is a KDE extension" % key)
elif key == "ReadOnly":
self.checkValue(key, value, type="boolean")
self.checkType(key, "FSDevice")
self.warnings.append("Key '%s' is a KDE extension" % key)
elif re.match("^UnmountIcon"+xdg.Locale.regex+"$", key):
self.checkValue(key, value)
self.checkType(key, "FSDevice")
self.warnings.append("Key '%s' is a KDE extension" % key)
# deprecated keys
elif key == "Encoding":
self.checkValue(key, value)
self.warnings.append("Key '%s' is deprecated" % key)
elif re.match("^MiniIcon"+xdg.Locale.regex+"$", key):
self.checkValue(key, value)
self.warnings.append("Key '%s' is deprecated" % key)
elif key == "TerminalOptions":
self.checkValue(key, value)
self.warnings.append("Key '%s' is deprecated" % key)
elif key == "DefaultApp":
self.checkValue(key, value)
self.warnings.append("Key '%s' is deprecated" % key)
elif key == "Protocols":
self.checkValue(key, value, list=True)
self.warnings.append("Key '%s' is deprecated" % key)
elif key == "Extensions":
self.checkValue(key, value, list=True)
self.warnings.append("Key '%s' is deprecated" % key)
elif key == "BinaryPattern":
self.checkValue(key, value)
self.warnings.append("Key '%s' is deprecated" % key)
elif key == "MapNotify":
self.checkValue(key, value)
self.warnings.append("Key '%s' is deprecated" % key)
elif re.match("^SwallowTitle"+xdg.Locale.regex+"$", key):
self.warnings.append("Key '%s' is deprecated" % key)
elif key == "SwallowExec":
self.checkValue(key, value)
self.warnings.append("Key '%s' is deprecated" % key)
elif key == "FilePattern":
self.checkValue(key, value, type="regex", list=True)
self.warnings.append("Key '%s' is deprecated" % key)
elif key == "SortOrder":
self.checkValue(key, value, list=True)
self.warnings.append("Key '%s' is deprecated" % key)
elif key == "Actions":
self.checkValue(key, value, list=True)
self.warnings.append("Key '%s' is deprecated" % key)
# "X-" extensions
elif re.match("^X-[a-zA-Z0-9-]+", key):
pass
else:
self.errors.append("Invalid key: %s" % key)
def checkType(self, key, type):
if not self.getType() == type:
self.errors.append("Key '%s' only allowed in Type=%s" % (key, type))
def checkOnlyShowIn(self, value):
values = self.getList(value)
valid = ["GNOME", "KDE", "ROX", "XFCE", "Old", "LXDE"]
for item in values:
if item not in valid and item[0:2] != "X-":
self.errors.append("'%s' is not a registered OnlyShowIn value" % item);
def checkCategorie(self, value):
values = self.getList(value)
main = ["AudioVideo", "Audio", "Video", "Development", "Education", "Game", "Graphics", "Network", "Office", "Settings", "System", "Utility"]
hasmain = False
for item in values:
if item in main:
hasmain = True
if hasmain == False:
self.errors.append("Missing main category")
additional = ["Building", "Debugger", "IDE", "GUIDesigner", "Profiling", "RevisionControl", "Translation", "Calendar", "ContactManagement", "Database", "Dictionary", "Chart", "Email", "Finance", "FlowChart", "PDA", "ProjectManagement", "Presentation", "Spreadsheet", "WordProcessor", "2DGraphics", "VectorGraphics", "3DGraphics", "RasterGraphics", "Scanning", "OCR", "Photography", "Publishing", "Viewer", "TextTools", "DesktopSettings", "HardwareSettings", "Printing", "PackageManager", "Dialup", "InstantMessaging", "Chat", "IRCClient", "FileTransfer", "HamRadio", "News", "P2P", "RemoteAccess", "Telephony", "TelephonyTools", "VideoConference", "WebBrowser", "WebDevelopment", "Midi", "Mixer", "Sequencer", "Tuner", "TV", "AudioVideoEditing", "Player", "Recorder", "DiscBurning", "ActionGame", "AdventureGame", "ArcadeGame", "BoardGame", "BlocksGame", "CardGame", "KidsGame", "LogicGame", "RolePlaying", "Simulation", "SportsGame", "StrategyGame", "Art", "Construction", "Music", "Languages", "Science", "ArtificialIntelligence", "Astronomy", "Biology", "Chemistry", "ComputerScience", "DataVisualization", "Economy", "Electricity", "Geography", "Geology", "Geoscience", "History", "ImageProcessing", "Literature", "Math", "NumericalAnalysis", "MedicalSoftware", "Physics", "Robotics", "Sports", "ParallelComputing", "Amusement", "Archiving", "Compression", "Electronics", "Emulator", "Engineering", "FileTools", "FileManager", "TerminalEmulator", "Filesystem", "Monitor", "Security", "Accessibility", "Calculator", "Clock", "TextEditor", "Documentation", "Core", "KDE", "GNOME", "GTK", "Qt", "Motif", "Java", "ConsoleOnly", "Screensaver", "TrayIcon", "Applet", "Shell"]
for item in values:
if item not in additional + main and item[0:2] != "X-":
self.errors.append("'%s' is not a registered Category" % item);
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