;ò µ¤.?c@sÞdZdkZdkZdkZdkZeideieiƒZeideieiƒZ d„Z de ddd„Z d dd „Z d dd „Zd „Zd d„Zd„ZdkZdd„Zd„ZdS(s- util.py - handle certificate data with plain Python 1.5.2 lib (c) by Michael Stroeder This module is distributed under the terms of the GPL (GNU GENERAL PUBLIC LICENSE) Version 2 (see http://www.gnu.org/copyleft/gpl.html) $Id: util.py,v 1.4 2003/08/04 18:23:49 michael Exp $ NsŒ-----BEGIN (CERTIFICATE|X509 CRL|CERTIFICATE REQUEST|PKCS7)-----([ \w+/= ]+?)-----END (CERTIFICATE|X509 CRL|CERTIFICATE REQUEST|PKCS7)-----s ^[ \w+/= ]+$cCsti|ƒ}|tjSdS(s?Regex based check if s has only chars used with base64 encodingN(s base64_resmatchsssrmsNone(sssrm((s./pylib/mspki/util.pys is_base64ss:is c Csat|ƒtdƒjoSg}x-|o%|it|d@ƒƒ|d?}q"W|iƒdi|ƒ}n-t|ƒtdƒjo |}n td‚|o||d} n t |ƒ} |d„}d|dit||d | !ƒƒg} | }xT|t |ƒjo@| id|dit||||| !ƒƒƒ|| }qüW|i| ƒSd S( s‹ Return a string representation of a fingerprint. The bytes are printed in hex separated by the character defined in delimiter. llÿiss4Parameter data can only be a string or long integer.icCsdt|ƒ|fS(Ns%02X%s(sordsxsd(sxsd((s./pylib/mspki/util.pys.ss iN(stypesdatasLsappendschrsreversesjoinsds TypeErrorswrapsindents bytesperlineslens delimitersconvertsmapsssislinesep( sdatas delimiterswrapsindentslinesepsconvertsdsisLsss bytesperline((s./pylib/mspki/util.pys HexStrings.     *2scCs tti|ƒiƒ|ƒSdS(sB MD5 fingerprint in dotted notation (delimiter between bytes) N(s HexStringsmd5snewscert_dersdigests delimiter(scert_ders delimiter((s./pylib/mspki/util.pysMD5Fingerprint6scCs tti|ƒiƒ|ƒSdS(sK Return SHA-1 fingerprint in dotted notation (delimiter between bytes) N(s HexStringsshasnewscert_dersdigests delimiter(scert_ders delimiter((s./pylib/mspki/util.pysSHA1Fingerprint<scCsng}x]ti|ƒD]L\}}}||jotd||f‚n|i||i ƒfƒqW|SdS(sJ Extract all base64 encoded certs in a text file to a list of strings s6-----BEGIN %s----- and -----END %s----- does not matchN( sresultspem_resfindalls cert_texts begin_types cert_base64send_types ValueErrorsappendsstrip(s cert_texts begin_typesend_typesresults cert_base64((s./pylib/mspki/util.pys extract_pemBs s CERTIFICATEcCsd|ti|ƒ|fSdS(sL Convert single binary DER-encoded certificate to base64 encoded format s&-----BEGIN %s----- %s-----END %s----- N(s cert_typesbase64s encodestringscert_der(scert_ders cert_type((s./pylib/mspki/util.pysder2pemMscCs-t|ƒd\}}ti|iƒƒSdS(sL Convert single base64 encoded certificate to binary DER-encoded format iN(s extract_pems cert_texts cert_types cert_base64sbase64s decodestringsstrip(s cert_texts cert_base64s cert_type((s./pylib/mspki/util.pyspem2derUscCsÔd}ti}x3|djo%|d|d@ƒ|}|d?}qWx<tt|ƒƒD]}||djoPqXqXWd}d}||}|djot|ƒ|o |t|ƒ|d|}n|SdS(sÑConvert a long integer to a byte string If optional blocksize is given and greater than zero, pad the front of the byte string with binary zeros so that the length is a multiple of blocksize. sis>Ilÿÿi sN(sssstructspacksnsrangeslensis blocksize(sns blocksizesissspack((s./pylib/mspki/util.pys longtobytesbs"     cCs›d}ti}t|ƒ}|do*d|d}d||}||}nx@td|dƒD],}|d>|d|||d!ƒd}qcW|SdS(sfConvert a byte string to a long integer. This is (essentially) the inverse of longtobytes(). lisii s>IN( saccsstructsunpackslenssslengthsextrasrangesi(sssaccsextrasislengthsunpack((s./pylib/mspki/util.pys bytestolong~s   *(s__doc__sresbase64smd5sshascompilesSsMspem_res base64_res is_base64sNones HexStringsMD5FingerprintsSHA1Fingerprints extract_pemsder2pemspem2dersstructs longtobytess bytestolong(s base64_resder2pemsSHA1Fingerprintsres HexStrings is_base64sbase64sMD5Fingerprintsstructsshas extract_pems longtobytesspem_res bytestolongspem2dersmd5((s./pylib/mspki/util.pys? s$