def _sign_fw(fw):
# load the .cab file
download_dir = app.config['DOWNLOAD_DIR']
fn = os.path.join(download_dir, fw.filename)
try:
with open(fn, 'rb') as f:
cabarchive = CabArchive(f.read())
except IOError as e:
raise NotImplementedError('cannot read %s: %s' % (fn, str(e)))
# create Jcat file
jcatfile = JcatFile()
# sign each component in the archive
print('Signing: %s' % fn)
for md in fw.mds:
try:
# create Jcat item with SHA1 and SHA256 checksum blob
cabfile = cabarchive[md.filename_contents]
jcatitem = jcatfile.get_item(md.filename_contents)
jcatitem.add_blob(JcatBlobSha1(cabfile.buf))
jcatitem.add_blob(JcatBlobSha256(cabfile.buf))
# sign using plugins
for blob in ploader.archive_sign(cabfile.buf):
# add GPG only to archive for backwards compat with older fwupd
if blob.kind == JcatBlobKind.GPG:
fn_blob = md.filename_contents + '.' + blob.filename_ext
cabarchive[fn_blob] = CabFile(blob.data)
# add to Jcat file too
jcatitem.add_blob(blob)
except KeyError as _:
raise NotImplementedError('no {} firmware found'.format(
md.filename_contents))
# rewrite the metainfo.xml file to reflect latest changes and sign it
for md in fw.mds:
# write new metainfo.xml file
component = _generate_metadata_mds([md], metainfo=True)
blob_xml = b'<?xml version="1.0" encoding="UTF-8"?>\n' + \
ET.tostring(component,
encoding='UTF-8',
xml_declaration=False,
pretty_print=True)
_show_diff(cabarchive[md.filename_xml].buf, blob_xml)
cabarchive[md.filename_xml].buf = blob_xml
# sign it
jcatitem = jcatfile.get_item(md.filename_xml)
jcatitem.add_blob(JcatBlobSha1(blob_xml))
jcatitem.add_blob(JcatBlobSha256(blob_xml))
for blob in ploader.archive_sign(blob_xml):
jcatitem.add_blob(blob)
# write jcat file
if jcatfile.items:
cabarchive['firmware.jcat'] = CabFile(jcatfile.save())
# overwrite old file
cab_data = cabarchive.save()
with open(fn, 'wb') as f:
f.write(cab_data)
# inform the plugin loader
ploader.file_modified(fn)
# update the download size
for md in fw.mds:
md.release_download_size = len(cab_data)
# update the database
fw.checksum_signed_sha1 = hashlib.sha1(cab_data).hexdigest()
fw.checksum_signed_sha256 = hashlib.sha256(cab_data).hexdigest()
fw.signed_timestamp = datetime.datetime.utcnow()
db.session.commit()
def _regenerate_and_sign_metadata(only_embargo=False):
# get list of dirty remotes
remotes = []
for r in db.session.query(Remote):
if not r.is_signed:
continue
# fix up any remotes that are not dirty, but have firmware that is dirty
# -- which shouldn't happen, but did...
if not r.is_dirty:
for fw in r.fws:
if not fw.is_dirty:
continue
print('Marking remote %s as dirty due to %u' %
(r.name, fw.firmware_id))
r.is_dirty = True
if r.is_dirty:
if r.is_public and only_embargo:
continue
remotes.append(r)
# nothing to do
if not remotes:
return
# set destination path from app config
download_dir = app.config['DOWNLOAD_DIR']
if not os.path.exists(download_dir):
os.mkdir(download_dir)
# update everything required
invalid_fns = []
for r in remotes:
print('Updating: %s' % r.name)
for r, blob_xmlgz in _metadata_update_targets(remotes):
# write metadata-?????.xml.gz
fn_xmlgz = os.path.join(download_dir, r.filename)
with open(fn_xmlgz, 'wb') as f:
f.write(blob_xmlgz)
invalid_fns.append(fn_xmlgz)
# write metadata.xml.gz
fn_xmlgz = os.path.join(download_dir, r.filename_newest)
with open(fn_xmlgz, 'wb') as f:
f.write(blob_xmlgz)
invalid_fns.append(fn_xmlgz)
# create Jcat item with SHA256 checksum blob
jcatfile = JcatFile()
jcatitem = jcatfile.get_item(r.filename)
jcatitem.add_alias_id(r.filename_newest)
jcatitem.add_blob(JcatBlobSha1(blob_xmlgz))
jcatitem.add_blob(JcatBlobSha256(blob_xmlgz))
# write each signed file
for blob in ploader.metadata_sign(blob_xmlgz):
# add GPG only to archive for backwards compat with older fwupd
if blob.kind == JcatBlobKind.GPG:
fn_xmlgz_asc = fn_xmlgz + '.' + blob.filename_ext
with open(fn_xmlgz_asc, 'wb') as f:
f.write(blob.data)
invalid_fns.append(fn_xmlgz_asc)
# add to Jcat file too
jcatitem.add_blob(blob)
# write jcat file
fn_xmlgz_jcat = fn_xmlgz + '.jcat'
with open(fn_xmlgz_jcat, 'wb') as f:
f.write(jcatfile.save())
invalid_fns.append(fn_xmlgz_jcat)
# update PULP
for r in remotes:
if r.name == 'stable':
_metadata_update_pulp(download_dir)
# do this all at once right at the end of all the I/O
for fn in invalid_fns:
print('Invalidating {}'.format(fn))
ploader.file_modified(fn)
# mark as no longer dirty
for r in remotes:
if not r.build_cnt:
r.build_cnt = 0
r.build_cnt += 1
r.is_dirty = False
db.session.commit()
# drop caches in other sessions
db.session.expire_all()
# log what we did
for r in remotes:
_event_log('Signed metadata {} build {}'.format(r.name, r.build_cnt))
# only keep the last 6 metadata builds (24h / stable refresh every 4h)
for r in remotes:
if not r.filename:
continue
suffix = r.filename.split('-')[2]
fns = glob.glob(
os.path.join(download_dir, 'firmware-*-{}'.format(suffix)))
for fn in sorted(fns):
build_cnt = int(fn.split('-')[1])
if build_cnt + 6 > r.build_cnt:
continue
os.remove(fn)
_event_log('Deleted metadata {} build {}'.format(
r.name, build_cnt))
def _regenerate_and_sign_metadata_remote(r):
# not required */
if not r.is_signed:
return
# fix up any remotes that are not dirty, but have firmware that is dirty
# -- which shouldn't happen, but did...
if not r.is_dirty:
for fw in r.fws:
if not fw.is_dirty:
continue
print('Marking remote %s as dirty due to %u' % (r.name, fw.firmware_id))
r.is_dirty = True
fw.is_dirty = False
# not needed
if not r.is_dirty:
return
# set destination path from app config
download_dir = app.config['DOWNLOAD_DIR']
if not os.path.exists(download_dir):
os.mkdir(download_dir)
invalid_fns = []
print('Updating: %s' % r.name)
# create metadata for each remote
fws_filtered = []
for fw in db.session.query(Firmware):
if fw.remote.name in ['private', 'deleted']:
continue
if not fw.signed_timestamp:
continue
if r.check_fw(fw):
fws_filtered.append(fw)
settings = _get_settings()
blob_xmlgz = _generate_metadata_kind(fws_filtered,
firmware_baseuri=settings['firmware_baseuri'])
# write metadata-?????.xml.gz
fn_xmlgz = os.path.join(download_dir, r.filename)
with open(fn_xmlgz, 'wb') as f:
f.write(blob_xmlgz)
invalid_fns.append(fn_xmlgz)
# write metadata.xml.gz
fn_xmlgz = os.path.join(download_dir, r.filename_newest)
with open(fn_xmlgz, 'wb') as f:
f.write(blob_xmlgz)
invalid_fns.append(fn_xmlgz)
# create Jcat item with SHA256 checksum blob
jcatfile = JcatFile()
jcatitem = jcatfile.get_item(r.filename)
jcatitem.add_alias_id(r.filename_newest)
jcatitem.add_blob(JcatBlobSha1(blob_xmlgz))
jcatitem.add_blob(JcatBlobSha256(blob_xmlgz))
# write each signed file
for blob in ploader.metadata_sign(blob_xmlgz):
# add GPG only to archive for backwards compat with older fwupd
if blob.kind == JcatBlobKind.GPG:
fn_xmlgz_asc = fn_xmlgz + '.' + blob.filename_ext
with open(fn_xmlgz_asc, 'wb') as f:
f.write(blob.data)
invalid_fns.append(fn_xmlgz_asc)
# add to Jcat file too
jcatitem.add_blob(blob)
# write jcat file
fn_xmlgz_jcat = fn_xmlgz + '.jcat'
with open(fn_xmlgz_jcat, 'wb') as f:
f.write(jcatfile.save())
invalid_fns.append(fn_xmlgz_jcat)
# update PULP
if r.name == 'stable':
_metadata_update_pulp(download_dir)
# do this all at once right at the end of all the I/O
for fn in invalid_fns:
print('Invalidating {}'.format(fn))
ploader.file_modified(fn)
# mark as no longer dirty
if not r.build_cnt:
r.build_cnt = 0
r.build_cnt += 1
r.is_dirty = False
# log what we did
_event_log('Signed metadata {} build {}'.format(r.name, r.build_cnt))
# only keep the last 6 metadata builds (24h / stable refresh every 4h)
suffix = r.filename.split('-')[2]
fns = glob.glob(os.path.join(download_dir, 'firmware-*-{}'.format(suffix)))
for fn in sorted(fns):
build_cnt = int(fn.split('-')[1])
if build_cnt + 6 > r.build_cnt:
continue
os.remove(fn)
_event_log('Deleted metadata {} build {}'.format(r.name, build_cnt))
# all firmwares are contained in the correct metadata now
for fw in fws_filtered:
fw.is_dirty = False
db.session.commit()