ó õùPc@s¦dZddlmZddlZddlmZmZddlZddlZddl Z ddl Z ddl Tddl m Z ejd#kr§d d$d „ƒYZned „Zed „Zd „Zdd„Zd„Zd„Zd„Zd„Zd„Zd„Zd„Zd„Zd„Zd„Zd„Z ia!da"e j#ƒa$d„Z%e&d„Z'de(fd„ƒYZ)e)ƒZ*d „Z+d!e(fd"„ƒYZ,dS(%s0 Useful functions used by the rest of paramiko. iÿÿÿÿ(t generatorsN(thexlifyt unhexlify(t*(t SSHConfigiit enumeratecBseZd„Zd„ZRS(cCs ||_dS(N(tsequence(tselfR((s(..\python\site-packages\paramiko\util.pyt__init__'sccs3d}x&|jD]}||fV|d7}qWdS(Nii(R(Rtcounttitem((s(..\python\site-packages\paramiko\util.pyt__iter__)s (t__name__t __module__RR (((s(..\python\site-packages\paramiko\util.pyR&s c Csùd}d}| rDt|ƒdkrDt|dƒdkrDd}nt|ƒdrˆd}|rid}n|dt|ƒd|}nxItdt|ƒdƒD]/}|d>tjd |||d!ƒd}q¡W|rõ|d d t|ƒ>8}n|S( sPturns a normalized byte string into a long-int (adapted from Crypto.Util.number)lii€iitsÿi s>Ili(tlentordtrangetstructtunpack(tstalways_positivetouttnegativetfillerti((s(..\python\site-packages\paramiko\util.pyt inflate_long0s/  -cCsFd}t|ƒ}x@|dkrT|dkrTtjd|d@ƒ|}|d?}qWxut|ƒD]F}|dkrˆ|ddkrˆPn|dkrb|dd krbPqbqbWd }|dkrÇd}nd }||d}|rB|dkrt|dƒd krd|}n|dkrBt|dƒd krBd |}qBn|S( sPturns a long-int into a normalized byte string (adapted from Crypto.Util.number)tiiÿÿÿÿs>Ilÿÿi iRsÿi€(i(tlongRtpackRR(tntadd_sign_paddingRR((s(..\python\site-packages\paramiko\util.pyt deflate_longAs*   " "cCsud}xht|ƒD]Z}|dt|dƒ7}|ddrL|d7}n|dddkr|d 7}qqW|S( NRs%02Xiiit iis (RR(tdataRR((s(..\python\site-packages\paramiko\util.pytformat_binary_weird^s RcCs˜d}g}xBt|ƒ|dkrP|jt|||d!ƒƒ|d7}qW|t|ƒkr}|jt||ƒƒng|D]}||^q„S(Nii(Rtappendtformat_binary_line(R"tprefixtxR((s(..\python\site-packages\paramiko\util.pyt format_binaryhscCsrdjg|D]}dt|ƒ^q ƒ}djg|D]"}d|t|ƒdd^q9ƒ}d||fS(NR!s%02XRs.%c..i?i_s%-50s %s(tjoinR(R"tctlefttright((s(..\python\site-packages\paramiko\util.pyR%rs,8cCst|ƒjƒS(N(Rtupper(R((s(..\python\site-packages\paramiko\util.pythexifywscCs t|ƒS(N(R(R((s(..\python\site-packages\paramiko\util.pytunhexifyzscCs`d}xS|D]K}t|ƒdkrDt|ƒdkrD||7}q |dt|ƒ7}q W|S(NRi is%%%02X(R(RRR*((s(..\python\site-packages\paramiko\util.pyt safe_string}s  $ cCsht|dƒ}t|dƒ}|dkr/dSt|ƒd}x"|d@sc|dK}|d8}qBW|S(Niiii€(R RR(Rtnormthbytetbitlen((s(..\python\site-packages\paramiko\util.pyt bit_lengthˆs   cCs%djtjtjƒŒƒjdƒS(NRs (R)t tracebacktformat_exceptiontsystexc_infotsplit(((s(..\python\site-packages\paramiko\util.pyt tb_strings“scCsÃd}d}t|ƒdkr+|d }nx‘|dkr¾|jƒ}t|ƒdkrh|j|ƒn|j|ƒ|j|ƒ|jƒ}t|t|ƒƒ}||| 7}||8}q.W|S(sx Given a password, passphrase, or other human-source key, scramble it through a secure hash into some keyworthy bytes. This specific algorithm is used for encrypting/decrypting private key files. @param hashclass: class from L{Crypto.Hash} that can be used as a secure hashing function (like C{MD5} or C{SHA}). @type hashclass: L{Crypto.Hash} @param salt: data to salt the hash with. @type salt: string @param key: human-entered password or passphrase. @type key: string @param nbytes: number of bytes to generate. @type nbytes: int @return: key data @rtype: string Rii(Rtnewtupdatetdigesttmin(t hashclasstsalttkeytnbytestkeydataR=thash_objtsize((s(..\python\site-packages\paramiko\util.pytgenerate_key_bytes–s     cCsddlm}||ƒS(sÒ Read a file of known SSH host keys, in the format used by openssh, and return a compound dict of C{hostname -> keytype ->} L{PKey }. The hostname may be an IP address or DNS name. The keytype will be either C{"ssh-rsa"} or C{"ssh-dss"}. This type of file unfortunately doesn't exist on Windows, but on posix, it will usually be stored in C{os.path.expanduser("~/.ssh/known_hosts")}. Since 1.5.3, this is just a wrapper around L{HostKeys}. @param filename: name of the file to read host keys from @type filename: str @return: dict of host keys, indexed by hostname and then keytype @rtype: dict(hostname, dict(keytype, L{PKey })) iÿÿÿÿ(tHostKeys(tparamiko.hostkeysRG(tfilenameRG((s(..\python\site-packages\paramiko\util.pytload_host_keys¸scCstƒ}|j|ƒ|S(sM Provided only as a backward-compatible wrapper around L{SSHConfig}. (Rtparse(tfile_objtconfig((s(..\python\site-packages\paramiko\util.pytparse_ssh_configÌs  cCs |j|ƒS(sM Provided only as a backward-compatible wrapper around L{SSHConfig}. (tlookup(thostnameRM((s(..\python\site-packages\paramiko\util.pytlookup_ssh_host_configÔsc Cs¡dd|}}}dd|}}}xY|dkrƒ||}||||}}||||}}||||}}q+W|dkr||7}n|S(Nii(( R'tmtu1tu2tu3tv1tv2tv3tq((s(..\python\site-packages\paramiko\util.pyt mod_inverseÚs   icCskttjƒƒ}y t|SWnFtk rftjƒztd7at}t|sF             "