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  #   €l–Я=їJ *j"TнА3q¦”ЕЈД„BыяГВ +ї    #!/usr/bin/python -tt

import rpm
import types
import os
import gzip
import sys
from gzip import write32u, FNAME
from urlgrabber.grabber import URLGrabError
from zlib import error as zlibError

def log(num, msg):
    print >>sys.stderr, msg
errorlog = log

def _(msg):
    return msg
    

# pylint: disable-msg=E0602

def checkheader(headerfile, name, arch):
    """check a header by opening it and comparing the results to the name and arch
       we believe it to be for. if it fails raise URLGrabError(-1)"""
    h = Header_Work(headerfile)
    fail = 0
    if h.hdr is None:
        fail = 1
    else:
        if name != h.name() or arch != h.arch():
            fail = 1
    if fail:
        raise URLGrabError(-1, _('Header cannot be opened or does not match %s, %s.') % (name, arch))
    return
    

def checkRpmMD5(package, urlgraberror=0):
    """take a package, check it out by trying to open it, return 1 if it's good
       return 0 if it's not"""
    ts.sigChecking('md5')
    fdno = os.open(package, os.O_RDONLY)
    try:
        ts.hdrFromFdno(fdno)
    except rpm.error, e:
        good = 0
    else:
        good = 1
    os.close(fdno)
    ts.sigChecking('default')

    if urlgraberror:
        if not good:
            raise URLGrabError(-1, _('RPM %s fails md5 check') % (package)) 
        else:
            return
    else:
        return good

def checkSig(package):
    """ take a package, check it's sigs, return 0 if they are all fine, return 
    1 if the gpg key can't be found,  2 if the header is in someway damaged,
    3 if the key is not trusted, 4 if the pkg is not gpg or pgp signed"""
    ts.sigChecking('default')
    fdno = os.open(package, os.O_RDONLY)
    try:
        hdr = ts.hdrFromFdno(fdno)
    except rpm.error, e:
        if str(e) == "public key not availaiable":
            return 1
        if str(e) == "public key not available":
            return 1
        if str(e) == "public key not trusted":
            return 3
        if str(e) == "error reading package header":
            return 2
    else:
        error, siginfo = getSigInfo(hdr)
        if error == 101:
            os.close(fdno)
            del hdr
            return 4
        else:
            del hdr
    os.close(fdno)
    return 0

def getSigInfo(hdr):
    """checks if a computerhand back signature information and an error code"""
    string = '%|DSAHEADER?{%{DSAHEADER:pgpsig}}:{%|RSAHEADER?{%{RSAHEADER:pgpsig}}:{%|SIGGPG?{%{SIGGPG:pgpsig}}:{%|SIGPGP?{%{SIGPGP:pgpsig}}:{(none)}|}|}|}|'
    siginfo = hdr.sprintf(string)
    if siginfo != '(none)':
        error = 0 
        sigtype, sigdate, sigid = siginfo.split(',')
    else:
        error = 101
        sigtype = 'MD5'
        sigdate = 'None'
        sigid = 'None'
        
    infotuple = (sigtype, sigdate, sigid)
    return error, infotuple

def getProvides(header):
    provnames = []
    provides = header[rpm.RPMTAG_PROVIDENAME]
    if provides is None:
        pass
    elif type(provides) is types.ListType:
        provnames.extend(provides)
    else:
        provnames.append(provides)
    return provnames
    
def compareEVR((e1, v1, r1), (e2, v2, r2)):
    # return 1: a is newer than b 
    # 0: a and b are the same version 
    # -1: b is newer than a 
    def rpmOutToStr(arg):
        if type(arg) != types.StringType and arg != None:
            arg = str(arg)
        return arg
    e1 = rpmOutToStr(e1)
    v1 = rpmOutToStr(v1)
    r1 = rpmOutToStr(r1)
    e2 = rpmOutToStr(e2)
    v2 = rpmOutToStr(v2)
    r2 = rpmOutToStr(r2)
    rc = rpm.labelCompare((e1, v1, r1), (e2, v2, r2))
    log(6, '%s, %s, %s vs %s, %s, %s = %s' % (e1, v1, r1, e2, v2, r2, rc))
    return rc
    

def formatRequire (name, version, flags):
    if flags:
        if flags & (rpm.RPMSENSE_LESS | rpm.RPMSENSE_GREATER | rpm.RPMSENSE_EQUAL):
            name = name + ' '
        if flags & rpm.RPMSENSE_LESS:
            name = name + '<'
        if flags & rpm.RPMSENSE_GREATER:
            name = name + '>'
        if flags & rpm.RPMSENSE_EQUAL: