def find_programs(extensions):
extensions = frozenset(extensions)
ans = []
seen_prog_ids, seen_cmdlines = set(), set()
# Search for programs registered using Default Programs that claim they are
# capable of handling the specified extensions.
for base in (HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE):
try:
k = Key(open_at=r'Software\RegisteredApplications', root=base)
except WindowsError as err:
if err.errno == winerror.ERROR_FILE_NOT_FOUND:
continue
raise
with k:
for name, key_path in k.values(get_data=True):
try:
app_desc, prog_id_map = get_prog_id_map(base, key_path)
except Exception:
import traceback
traceback.print_exc()
continue
for ext in extensions:
prog_id = prog_id_map.get(ext)
if prog_id is not None and prog_id not in seen_prog_ids:
seen_prog_ids.add(prog_id)
cmdline, icon_resource, friendly_name = get_open_data(base, prog_id)
if cmdline and cmdline not in seen_cmdlines:
seen_cmdlines.add(cmdline)
ans.append({'name':app_desc, 'cmdline':cmdline, 'icon_resource':icon_resource})
# Now look for programs that only register with Windows Explorer instead of
# Default Programs (for example, FoxIt PDF reader)
for ext in extensions:
try:
k = Key(open_at=r'Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.%s\OpenWithProgIDs' % ext, root=HKEY_CURRENT_USER)
except WindowsError as err:
if err.errno == winerror.ERROR_FILE_NOT_FOUND:
continue
for prog_id in itervalues(k):
if prog_id and prog_id not in seen_prog_ids:
seen_prog_ids.add(prog_id)
cmdline, icon_resource, friendly_name = get_open_data(base, prog_id)
if cmdline and cmdline not in seen_cmdlines:
seen_cmdlines.add(cmdline)
exe_name = None
exe = split_commandline(cmdline)
if exe:
exe_name = friendly_app_name(prog_id) or os.path.splitext(os.path.basename(exe[0]))[0]
name = exe_name or friendly_name
if name:
ans.append({'name':name, 'cmdline':cmdline, 'icon_resource':icon_resource})
return ans
def find_programs(extensions):
extensions = frozenset(extensions)
ans = []
seen_prog_ids, seen_cmdlines = set(), set()
# Search for programs registered using Default Programs that claim they are
# capable of handling the specified extensions.
for base in (HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE):
try:
k = Key(open_at=r'Software\RegisteredApplications', root=base)
except WindowsError as err:
if err.errno == winerror.ERROR_FILE_NOT_FOUND:
continue
raise
with k:
for name, key_path in k.values(get_data=True):
try:
app_desc, prog_id_map = get_prog_id_map(base, key_path)
except Exception:
import traceback
traceback.print_exc()
continue
for ext in extensions:
prog_id = prog_id_map.get(ext)
if prog_id is not None and prog_id not in seen_prog_ids:
seen_prog_ids.add(prog_id)
cmdline, icon_resource, friendly_name = get_open_data(base, prog_id)
if cmdline and cmdline not in seen_cmdlines:
seen_cmdlines.add(cmdline)
ans.append({'name':app_desc, 'cmdline':cmdline, 'icon_resource':icon_resource})
# Now look for programs that only register with Windows Explorer instead of
# Default Programs (for example, FoxIt PDF reader)
for ext in extensions:
try:
k = Key(open_at=r'Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.%s\OpenWithProgIDs' % ext, root=HKEY_CURRENT_USER)
except WindowsError as err:
if err.errno == winerror.ERROR_FILE_NOT_FOUND:
continue
for prog_id in itervalues(k):
if prog_id and prog_id not in seen_prog_ids:
seen_prog_ids.add(prog_id)
cmdline, icon_resource, friendly_name = get_open_data(base, prog_id)
if cmdline and cmdline not in seen_cmdlines:
seen_cmdlines.add(cmdline)
exe_name = None
exe = split_commandline(cmdline)
if exe:
exe_name = friendly_app_name(prog_id) or os.path.splitext(os.path.basename(exe[0]))[0]
name = exe_name or friendly_name
if name:
ans.append({'name':name, 'cmdline':cmdline, 'icon_resource':icon_resource})
return ans
def get_prog_id_map(base, key_path):
desc, ans = None, {}
try:
k = Key(open_at=key_path, root=base)
except WindowsError as err:
if err.errno == winerror.ERROR_FILE_NOT_FOUND:
return desc, ans
raise
with k:
desc = k.get_mui_string('ApplicationDescription')
if desc is None:
return desc, ans
for ext, prog_id in k.values(sub_key='FileAssociations', get_data=True):
ans[ext[1:].lower()] = prog_id
return desc, ans
def get_prog_id_map(base, key_path):
desc, ans = None, {}
try:
k = Key(open_at=key_path, root=base)
except WindowsError as err:
if err.errno == winerror.ERROR_FILE_NOT_FOUND:
return desc, ans
raise
with k:
desc = k.get_mui_string('ApplicationDescription')
if desc is None:
return desc, ans
for ext, prog_id in k.values(sub_key='FileAssociations', get_data=True):
ans[ext[1:].lower()] = prog_id
return desc, ans
