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filesystem: add flags to filter selectables

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When requesting what DF/EF/ADF are selectable it is useful to have some
control of what we do not want in the resulting list.

Change-Id: Idb50a512bfdbfdf2e98f2ce0e89928cb0ff19f5e
Related: OS#4963
This commit is contained in:
Philipp Maier
2021-02-25 16:48:10 +01:00
committed by laforge
parent 3b51f436a4
commit 786f781a5f
1 changed files with 36 additions and 25 deletions
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61
pySim/filesystem.py
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@@ -86,33 +86,38 @@ class CardFile(object):
node = node.parent
return node
def _get_self_selectables(self, alias=None):
def _get_self_selectables(self, alias=None, flags = []):
"""Return a dict of {'identifier': self} tuples"""
sels = {}
if alias:
sels.update({alias: self})
if self.fid:
if self.fid and (flags == [] or 'FIDS' in flags):
sels.update({self.fid: self})
if self.name:
if self.name and (flags == [] or 'NAMES' in flags):
sels.update({self.name: self})
return sels
def get_selectables(self):
def get_selectables(self, flags = []):
"""Return a dict of {'identifier': File} that is selectable from the current file."""
sels = {}
# we can always select ourself
sels = self._get_self_selectables('.')
if flags == [] or 'SELF' in flags:
sels = self._get_self_selectables('.', flags)
# we can always select our parent
sels = self.parent._get_self_selectables('..')
if flags == [] or 'PARENT' in flags:
sels = self.parent._get_self_selectables('..', flags)
# if we have a MF, we can always select its applications
mf = self.get_mf()
if mf:
sels.update(mf._get_self_selectables())
sels.update(mf.get_app_selectables())
if flags == [] or 'MF' in flags:
mf = self.get_mf()
if mf:
sels.update(mf._get_self_selectables(flags = flags))
if flags == [] or 'APPS' in flags:
sels.update(mf.get_app_selectables(flags))
return sels
def get_selectable_names(self):
def get_selectable_names(self, flags = []):
"""Return a list of strings for all identifiers that are selectable from the current file."""
sels = self.get_selectables()
sels = self.get_selectables(flags)
return sels.keys()
def decode_select_response(self, data_hex):
@@ -158,12 +163,14 @@ class CardDF(CardFile):
for child in children:
self.add_file(child, ignore_existing)
def get_selectables(self):
def get_selectables(self, flags = []):
"""Get selectable (DF/EF names) from current DF"""
# global selectables + our children
sels = super().get_selectables()
sels.update({x.fid: x for x in self.children.values() if x.fid})
sels.update({x.name: x for x in self.children.values() if x.name})
sels = super().get_selectables(flags)
if flags == [] or 'FIDS' in flags:
sels.update({x.fid: x for x in self.children.values() if x.fid})
if flags == [] or 'NAMES' in flags:
sels.update({x.name: x for x in self.children.values() if x.name})
return sels
def lookup_file_by_name(self, name):
@@ -216,16 +223,20 @@ class CardMF(CardDF):
"""Get list of completions (AID names)"""
return [x.name for x in self.applications]
def get_selectables(self):
def get_selectables(self, flags = []):
"""Get list of completions (DF/EF/ADF names) from current DF"""
sels = super().get_selectables()
sels.update(self.get_app_selectables())
sels = super().get_selectables(flags)
if flags == [] or 'APPS' in flags:
sels.update(self.get_app_selectables(flags))
return sels
def get_app_selectables(self):
# applications by AID + name
sels = {x.aid: x for x in self.applications.values()}
sels.update({x.name: x for x in self.applications.values() if x.name})
def get_app_selectables(self, flags = []):
"""Get applications by AID + name"""
sels = {}
if flags == [] or 'FIDS' in flags:
sels.update({x.aid: x for x in self.applications.values()})
if flags == [] or 'NAMES' in flags:
sels.update({x.name: x for x in self.applications.values() if x.name})
return sels
def decode_select_response(self, data_hex):
@@ -261,10 +272,10 @@ class CardEF(CardFile):
def __str__(self):
return "EF(%s)" % (super().__str__())
def get_selectables(self):
def get_selectables(self, flags = []):
"""Get list of completions (EF names) from current DF"""
#global selectable names + those of the parent DF
sels = super().get_selectables()
sels = super().get_selectables(flags)
sels.update({x.name:x for x in self.parent.children.values() if x != self})
return sels