a Ri@sddlZddlZddlZddlZddlmZmZmZmZm Z m Z m Z ej ej gZdZdZdZddd Zd d Zd d Ze jeejddddddZGdddeZe jddZddZdS)N)authconfig constantserrors http_utilsselinuxutilsz /usr/bin/gpgz/var/lib/kcare/gpgzrelease.content.jsonFc Cstj}|rtj}tjr&tddd}nt}|D]R}z|||}WqWq.tjy~}z||dkrj|WYd}~q.d}~00q.||}t |||S)N) rurlopenr urlopen_authrFORCE_JSON_SIG_V3SIG_VERIFY_ORDERrNotFoundr save_to_file) urldstdo_authZ urlopen_localZsig_extsZsig_ext signatureZnfZsig_dstr+/usr/libexec/kcare/python/kcarectl/fetch.pyfetch_signatures     rcCs$tjts tjdtdddS)Nz$No {0} present. Please install gnupgzgnupg not foundstatus)ospathisfileGPG_BINr KcareErrorformatrrrr check_gpg_bin)s r c Cst|tjrrtjtd}zt |||Wn<tj yn}z"t d |t|WYd}~n d}~00nt|d}|}Wdn1s0Ytjtd}zt|||Wn:ty}z"t d |t|WYd}~n d}~00dS)a8 Check a file signature using the gpg tool. If signature is wrong BadSignatureException will be raised. :param file_path: path to file which signature will be checked :param signature: a file with the signature :return: True in case of valid signature :raises: BadSignatureException zroot-keys.jsonzBad Signature: {0}: {1}Nrbz kcare_pub.key)r endswithrSIG_JSONrrjoin GPG_KEY_DIR kcsig_verifyZverifyErrorrBadSignatureExceptionrstropenreadZrun_gpg_verify Exception) file_pathrZ root_keysefZsigdataZkeyringrrrcheck_gpg_signature.s  . &r0)countdelaycCs^t|}t|}t|||r2|||n|rNt||dd}t||t |||S)NT)r) rr rselinux_safe_tmpnamer rcheckrr0rrename)rrZcheck_signature hash_checkerresponsetmprrrr fetch_urlMs     r:c@seZdZddZddZdS) HashCheckercCs6||_t|dd|_tt|d|_dS)N/files) content_filer get_patch_server_urlrstrip url_prefixjsonloads read_filehashes)selfbaseurlr>rrr__init__^szHashChecker.__init__cCsv|t|jd}||jvr4tjd||jddtt | }|j|d}||krrt d|||dS)Nz3Invalid checksum: {0} not found in content file {1}zinvalid checksumrsha256zhashlibrIr read_file_bin hexdigestr()rFrfnameZcfnameZhshZ expected_hshrrrr5cs   zHashChecker.checkN)__name__ __module__ __qualname__rHr5rrrrr;]sr;cCsjtjs dS|jsdS|t}tj|s^ztt |jt|tj Wnt j y\YdS0t|j|S)N)rUSE_CONTENT_FILE_V3rG cache_path CONTENT_FILErrexistsr:r r? USE_SIGNATURErrr;)levelrrrrget_hash_checkerts  rXcsfdd}|S)z=Enrich request with a cache key, and save it if response had.cslt}|dur.d|vr i|d<||dtj<|i|}|jtj}|durh||krhttj||S)Nheaders)r get_cache_keyrCACHE_KEY_HEADERrYget atomic_writeCACHE_KEY_DUMP_PATH)argskwargs cache_keyrespZ new_cache_keyclblrrwrappersz$wrap_with_cache_key..wrapperr)rdrerrcrwrap_with_cache_keys rf)F)FN)rKrBrr&rrrrrrr SIGr#rrr%rTrr r0retry check_excr(r:objectr;cachedrXrfrrrrs"$