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🐛 Add support for /usr/lib/firefox and /usr/lib/thunderbird libnss3.so locations

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This commit is contained in:
Renato Alves
2025-10-31 10:17:55 +01:00
parent 8a5fdeb8c8
commit 7d86cb2969
1 changed files with 29 additions and 27 deletions
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56
firefox_decrypt.py
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@@ -212,38 +212,40 @@ def find_nss(locations: list[str], nssname: str) -> ct.CDLL:
fail_errors: list[tuple[str, str]] = []
OS = ("Windows", "Darwin")
sublocations = ("firefox", "thunderbird", "")
for loc in locations:
nsslib = os.path.join(loc, nssname)
LOG.debug("Loading NSS library from %s", nsslib)
for subloc in sublocations:
nsslib = os.path.join(loc, subloc, nssname)
LOG.debug("Loading NSS library from %s", nsslib)
if SYSTEM in OS:
# On windows in order to find DLLs referenced by nss3.dll
# we need to have those locations on PATH
os.environ["PATH"] = ";".join([loc, os.environ["PATH"]])
LOG.debug("PATH is now %s", os.environ["PATH"])
# However this doesn't seem to work on all setups and needs to be
# set before starting python so as a workaround we chdir to
# Firefox's nss3.dll/libnss3.dylib location
if loc:
if not os.path.isdir(loc):
# No point in trying to load from paths that don't exist
continue
if SYSTEM in OS:
# On windows in order to find DLLs referenced by nss3.dll
# we need to have those locations on PATH
os.environ["PATH"] = ";".join([loc, os.environ["PATH"]])
LOG.debug("PATH is now %s", os.environ["PATH"])
# However this doesn't seem to work on all setups and needs to be
# set before starting python so as a workaround we chdir to
# Firefox's nss3.dll/libnss3.dylib location
if loc:
if not os.path.isdir(loc):
# No point in trying to load from paths that don't exist
continue
workdir = os.getcwd()
os.chdir(loc)
workdir = os.getcwd()
os.chdir(loc)
try:
nss: ct.CDLL = ct.CDLL(nsslib)
except OSError as e:
fail_errors.append((nsslib, str(e)))
else:
LOG.debug("Loaded NSS library from %s", nsslib)
return nss
finally:
if SYSTEM in OS and loc:
# Restore workdir changed above
os.chdir(workdir)
try:
nss: ct.CDLL = ct.CDLL(nsslib)
except OSError as e:
fail_errors.append((nsslib, str(e)))
else:
LOG.debug("Loaded NSS library from %s", nsslib)
return nss
finally:
if SYSTEM in OS and loc:
# Restore workdir changed above
os.chdir(workdir)
else:
LOG.error(