PNG  IHDRxsBIT|d pHYs+tEXtSoftwarewww.inkscape.org<,tEXtComment File Manager

File Manager

Path: /opt/alt/python27/lib64/python2.7/

Viewing File: poplib.py

"""A POP3 client class.

Based on the J. Myers POP3 draft, Jan. 96
"""

# Author: David Ascher <david_ascher@brown.edu>
#         [heavily stealing from nntplib.py]
# Updated: Piers Lauder <piers@cs.su.oz.au> [Jul '97]
# String method conversion and test jig improvements by ESR, February 2001.
# Added the POP3_SSL class. Methods loosely based on IMAP_SSL. Hector Urtubia <urtubia@mrbook.org> Aug 2003

# Example (see the test function at the end of this file)

# Imports

import re, socket

__all__ = ["POP3","error_proto"]

# Exception raised when an error or invalid response is received:

class error_proto(Exception): pass

# Standard Port
POP3_PORT = 110

# POP SSL PORT
POP3_SSL_PORT = 995

# Line terminators (we always output CRLF, but accept any of CRLF, LFCR, LF)
CR = '\r'
LF = '\n'
CRLF = CR+LF

# maximal line length when calling readline(). This is to prevent
# reading arbitrary length lines. RFC 1939 limits POP3 line length to
# 512 characters, including CRLF. We have selected 2048 just to be on
# the safe side.
_MAXLINE = 2048


class POP3:

    """This class supports both the minimal and optional command sets.
    Arguments can be strings or integers (where appropriate)
    (e.g.: retr(1) and retr('1') both work equally well.

    Minimal Command Set:
            USER name               user(name)
            PASS string             pass_(string)
            STAT                    stat()
            LIST [msg]              list(msg = None)
            RETR msg                retr(msg)
            DELE msg                dele(msg)
            NOOP                    noop()
            RSET                    rset()
            QUIT                    quit()

    Optional Commands (some servers support these):
            RPOP name               rpop(name)
            APOP name digest        apop(name, digest)
            TOP msg n               top(msg, n)
            UIDL [msg]              uidl(msg = None)

    Raises one exception: 'error_proto'.

    Instantiate with:
            POP3(hostname, port=110)

    NB:     the POP protocol locks the mailbox from user
            authorization until QUIT, so be sure to get in, suck
            the messages, and quit, each time you access the
            mailbox.

            POP is a line-based protocol, which means large mail
            messages consume lots of python cycles reading them
            line-by-line.

            If it's available on your mail server, use IMAP4
            instead, it doesn't suffer from the two problems
            above.
    """


    def __init__(self, host, port=POP3_PORT,
                 timeout=socket._GLOBAL_DEFAULT_TIMEOUT):
        self.host = host
        self.port = port
        self.sock = socket.create_connection((host, port), timeout)
        self.file = self.sock.makefile('rb')
        self._debugging = 0
        self.welcome = self._getresp()


    def _putline(self, line):
        if self._debugging > 1: print '*put*', repr(line)
        self.sock.sendall('%s%s' % (line, CRLF))


    # Internal: send one command to the server (through _putline())

    def _putcmd(self, line):
        if self._debugging: print '*cmd*', repr(line)
        self._putline(line)


    # Internal: return one line from the server, stripping CRLF.
    # This is where all the CPU time of this module is consumed.
    # Raise error_proto('-ERR EOF') if the connection is closed.

    def _getline(self):
        line = self.file.readline(_MAXLINE + 1)
        if len(line) > _MAXLINE:
            raise error_proto('line too long')
        if self._debugging > 1: print '*get*', repr(line)
        if not line: raise error_proto('-ERR EOF')
        octets = len(line)
        # server can send any combination of CR & LF
        # however, 'readline()' returns lines ending in LF
        # so only possibilities are ...LF, ...CRLF, CR...LF
        if line[-2:] == CRLF:
            return line[:-2], octets
        if line[0] == CR:
            return line[1:-1], octets
        return line[:-1], octets


    # Internal: get a response from the server.
    # Raise 'error_proto' if the response doesn't start with '+'.

    def _getresp(self):
        resp, o = self._getline()
        if self._debugging > 1: print '*resp*', repr(resp)
        c = resp[:1]
        if c != '+':
            raise error_proto(resp)
        return resp


    # Internal: get a response plus following text from the server.

    def _getlongresp(self):
        resp = self._getresp()
        list = []; octets = 0
        line, o = self._getline()
        while line != '.':
            if line[:2] == '..':
                o = o-1
                line = line[1:]
            octets = octets + o
            list.append(line)
            line, o = self._getline()
        return resp, list, octets


    # Internal: send a command and get the response

    def _shortcmd(self, line):
        self._putcmd(line)
        return self._getresp()


    # Internal: send a command and get the response plus following text

    def _longcmd(self, line):
        self._putcmd(line)
        return self._getlongresp()


    # These can be useful:

    def getwelcome(self):
        return self.welcome


    def set_debuglevel(self, level):
        self._debugging = level


    # Here are all the POP commands:

    def user(self, user):
        """Send user name, return response

        (should indicate password required).
        """
        return self._shortcmd('USER %s' % user)


    def pass_(self, pswd):
        """Send password, return response

        (response includes message count, mailbox size).

        NB: mailbox is locked by server from here to 'quit()'
        """
        return self._shortcmd('PASS %s' % pswd)


    def stat(self):
        """Get mailbox status.

        Result is tuple of 2 ints (message count, mailbox size)
        """
        retval = self._shortcmd('STAT')
        rets = retval.split()
        if self._debugging: print '*stat*', repr(rets)
        numMessages = int(rets[1])
        sizeMessages = int(rets[2])
        return (numMessages, sizeMessages)


    def list(self, which=None):
        """Request listing, return result.

        Result without a message number argument is in form
        ['response', ['mesg_num octets', ...], octets].

        Result when a message number argument is given is a
        single response: the "scan listing" for that message.
        """
        if which is not None:
            return self._shortcmd('LIST %s' % which)
        return self._longcmd('LIST')


    def retr(self, which):
        """Retrieve whole message number 'which'.

        Result is in form ['response', ['line', ...], octets].
        """
        return self._longcmd('RETR %s' % which)


    def dele(self, which):
        """Delete message number 'which'.

        Result is 'response'.
        """
        return self._shortcmd('DELE %s' % which)


    def noop(self):
        """Does nothing.

        One supposes the response indicates the server is alive.
        """
        return self._shortcmd('NOOP')


    def rset(self):
        """Unmark all messages marked for deletion."""
        return self._shortcmd('RSET')


    def quit(self):
        """Signoff: commit changes on server, unlock mailbox, close connection."""
        try:
            resp = self._shortcmd('QUIT')
        except error_proto, val:
            resp = val
        self.file.close()
        self.sock.close()
        del self.file, self.sock
        return resp

    #__del__ = quit


    # optional commands:

    def rpop(self, user):
        """Not sure what this does."""
        return self._shortcmd('RPOP %s' % user)


    timestamp = re.compile(br'\+OK.[^<]*(<.*>)')

    def apop(self, user, secret):
        """Authorisation

        - only possible if server has supplied a timestamp in initial greeting.

        Args:
                user    - mailbox user;
                secret  - secret shared between client and server.

        NB: mailbox is locked by server from here to 'quit()'
        """
        m = self.timestamp.match(self.welcome)
        if not m:
            raise error_proto('-ERR APOP not supported by server')
        import hashlib
        digest = hashlib.md5(m.group(1)+secret).digest()
        digest = ''.join(map(lambda x:'%02x'%ord(x), digest))
        return self._shortcmd('APOP %s %s' % (user, digest))


    def top(self, which, howmuch):
        """Retrieve message header of message number 'which'
        and first 'howmuch' lines of message body.

        Result is in form ['response', ['line', ...], octets].
        """
        return self._longcmd('TOP %s %s' % (which, howmuch))


    def uidl(self, which=None):
        """Return message digest (unique id) list.

        If 'which', result contains unique id for that message
        in the form 'response mesgnum uid', otherwise result is
        the list ['response', ['mesgnum uid', ...], octets]
        """
        if which is not None:
            return self._shortcmd('UIDL %s' % which)
        return self._longcmd('UIDL')

try:
    import ssl
except ImportError:
    pass
else:

    class POP3_SSL(POP3):
        """POP3 client class over SSL connection

        Instantiate with: POP3_SSL(hostname, port=995, keyfile=None, certfile=None)

               hostname - the hostname of the pop3 over ssl server
               port - port number
               keyfile - PEM formatted file that contains your private key
               certfile - PEM formatted certificate chain file

            See the methods of the parent class POP3 for more documentation.
        """

        def __init__(self, host, port = POP3_SSL_PORT, keyfile = None, certfile = None):
            self.host = host
            self.port = port
            self.keyfile = keyfile
            self.certfile = certfile
            self.buffer = ""
            msg = "getaddrinfo returns an empty list"
            self.sock = None
            for res in socket.getaddrinfo(self.host, self.port, 0, socket.SOCK_STREAM):
                af, socktype, proto, canonname, sa = res
                try:
                    self.sock = socket.socket(af, socktype, proto)
                    self.sock.connect(sa)
                except socket.error, msg:
                    if self.sock:
                        self.sock.close()
                    self.sock = None
                    continue
                break
            if not self.sock:
                raise socket.error, msg
            self.file = self.sock.makefile('rb')
            self.sslobj = ssl.wrap_socket(self.sock, self.keyfile, self.certfile)
            self._debugging = 0
            self.welcome = self._getresp()

        def _fillBuffer(self):
            localbuf = self.sslobj.read()
            if len(localbuf) == 0:
                raise error_proto('-ERR EOF')
            self.buffer += localbuf

        def _getline(self):
            line = ""
            renewline = re.compile(r'.*?\n')
            match = renewline.match(self.buffer)
            while not match:
                self._fillBuffer()
                if len(self.buffer) > _MAXLINE:
                    raise error_proto('line too long')
                match = renewline.match(self.buffer)
            line = match.group(0)
            self.buffer = renewline.sub('' ,self.buffer, 1)
            if self._debugging > 1: print '*get*', repr(line)

            octets = len(line)
            if line[-2:] == CRLF:
                return line[:-2], octets
            if line[0] == CR:
                return line[1:-1], octets
            return line[:-1], octets

        def _putline(self, line):
            if self._debugging > 1: print '*put*', repr(line)
            line += CRLF
            bytes = len(line)
            while bytes > 0:
                sent = self.sslobj.write(line)
                if sent == bytes:
                    break    # avoid copy
                line = line[sent:]
                bytes = bytes - sent

        def quit(self):
            """Signoff: commit changes on server, unlock mailbox, close connection."""
            try:
                resp = self._shortcmd('QUIT')
            except error_proto, val:
                resp = val
            self.sock.close()
            del self.sslobj, self.sock
            return resp

    __all__.append("POP3_SSL")

if __name__ == "__main__":
    import sys
    a = POP3(sys.argv[1])
    print a.getwelcome()
    a.user(sys.argv[2])
    a.pass_(sys.argv[3])
    a.list()
    (numMsgs, totalSize) = a.stat()
    for i in range(1, numMsgs + 1):
        (header, msg, octets) = a.retr(i)
        print "Message %d:" % i
        for line in msg:
            print '   ' + line
        print '-----------------------'
    a.quit()
b IDATxytVսϓ22 A@IR :hCiZ[v*E:WũZA ^dQeQ @ !jZ'>gsV仿$|?g)&x-EIENT ;@xT.i%-X}SvS5.r/UHz^_$-W"w)Ɗ/@Z &IoX P$K}JzX:;` &, ŋui,e6mX ԵrKb1ԗ)DADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADADA݀!I*]R;I2$eZ#ORZSrr6mteffu*((Pu'v{DIߔ4^pIm'77WEEE;vƎ4-$]'RI{\I&G :IHJ DWBB=\WR޽m o$K(V9ABB.}jѢv`^?IOȅ} ڶmG}T#FJ`56$-ھ}FI&v;0(h;Б38CӧOWf!;A i:F_m9s&|q%=#wZprrrla A &P\\СC[A#! {olF} `E2}MK/vV)i{4BffV\|ۭX`b@kɶ@%i$K z5zhmX[IXZ` 'b%$r5M4º/l ԃߖxhʔ)[@=} K6IM}^5k㏷݆z ΗÿO:gdGBmyT/@+Vɶ纽z񕏵l.y޴it뭷zV0[Y^>Wsqs}\/@$(T7f.InݺiR$푔n.~?H))\ZRW'Mo~v Ov6oԃxz! S,&xm/yɞԟ?'uaSѽb,8GלKboi&3t7Y,)JJ c[nzӳdE&KsZLӄ I?@&%ӟ۶mSMMњ0iؐSZ,|J+N ~,0A0!5%Q-YQQa3}$_vVrf9f?S8`zDADADADADADADADADAdqP,تmMmg1V?rSI꒟]u|l RCyEf٢9 jURbztѰ!m5~tGj2DhG*{H9)꒟ר3:(+3\?/;TUݭʴ~S6lڧUJ*i$d(#=Yݺd{,p|3B))q:vN0Y.jkק6;SɶVzHJJЀ-utѹսk>QUU\޲~]fFnK?&ߡ5b=z9)^|u_k-[y%ZNU6 7Mi:]ۦtk[n X(e6Bb."8cۭ|~teuuw|ήI-5"~Uk;ZicEmN/:]M> cQ^uiƞ??Ңpc#TUU3UakNwA`:Y_V-8.KKfRitv޲* 9S6ֿj,ՃNOMߤ]z^fOh|<>@Å5 _/Iu?{SY4hK/2]4%it5q]GGe2%iR| W&f*^]??vq[LgE_3f}Fxu~}qd-ږFxu~I N>\;͗O֊:̗WJ@BhW=y|GgwܷH_NY?)Tdi'?խwhlmQi !SUUsw4kӺe4rfxu-[nHtMFj}H_u~w>)oV}(T'ebʒv3_[+vn@Ȭ\S}ot}w=kHFnxg S 0eޢm~l}uqZfFoZuuEg `zt~? b;t%>WTkķh[2eG8LIWx,^\thrl^Ϊ{=dž<}qV@ ⠨Wy^LF_>0UkDuʫuCs$)Iv:IK;6ֲ4{^6եm+l3>݆uM 9u?>Zc }g~qhKwڭeFMM~pМuqǿz6Tb@8@Y|jx](^]gf}M"tG -w.@vOqh~/HII`S[l.6nØXL9vUcOoB\xoǤ'T&IǍQw_wpv[kmO{w~>#=P1Pɞa-we:iǏlHo׈꒟f9SzH?+shk%Fs:qVhqY`jvO'ρ?PyX3lх]˾uV{ݞ]1,MzYNW~̈́ joYn}ȚF߾׮mS]F z+EDxm/d{F{-W-4wY듏:??_gPf ^3ecg ҵs8R2מz@TANGj)}CNi/R~}c:5{!ZHӋӾ6}T]G]7W6^n 9*,YqOZj:P?Q DFL|?-^.Ɵ7}fFh׶xe2Pscz1&5\cn[=Vn[ĶE鎀uˌd3GII k;lNmشOuuRVfBE]ۣeӶu :X-[(er4~LHi6:Ѻ@ԅrST0trk%$Č0ez" *z"T/X9|8.C5Feg}CQ%͞ˣJvL/?j^h&9xF`њZ(&yF&Iݻfg#W;3^{Wo^4'vV[[K';+mӍִ]AC@W?1^{එyh +^]fm~iԵ]AB@WTk̏t uR?l.OIHiYyԶ]Aˀ7c:q}ힽaf6Z~қm(+sK4{^6}T*UUu]n.:kx{:2 _m=sAߤU@?Z-Vކеz왍Nэ{|5 pڶn b p-@sPg]0G7fy-M{GCF'%{4`=$-Ge\ eU:m+Zt'WjO!OAF@ik&t݆ϥ_ e}=]"Wz_.͜E3leWFih|t-wZۍ-uw=6YN{6|} |*={Ѽn.S.z1zjۻTH]흾 DuDvmvK.`V]yY~sI@t?/ϓ. m&["+P?MzovVЫG3-GRR[(!!\_,^%?v@ҵő m`Y)tem8GMx.))A]Y i`ViW`?^~!S#^+ѽGZj?Vģ0.))A꨷lzL*]OXrY`DBBLOj{-MH'ii-ϰ ok7^ )쭡b]UXSְmռY|5*cֽk0B7镹%ڽP#8nȎq}mJr23_>lE5$iwui+ H~F`IjƵ@q \ @#qG0".0" l`„.0! ,AQHN6qzkKJ#o;`Xv2>,tێJJ7Z/*A .@fفjMzkg @TvZH3Zxu6Ra'%O?/dQ5xYkU]Rֽkق@DaS^RSּ5|BeHNN͘p HvcYcC5:y #`οb;z2.!kr}gUWkyZn=f Pvsn3p~;4p˚=ē~NmI] ¾ 0lH[_L hsh_ғߤc_њec)g7VIZ5yrgk̞W#IjӪv>՞y睝M8[|]\շ8M6%|@PZڨI-m>=k='aiRo-x?>Q.}`Ȏ:Wsmu u > .@,&;+!!˱tﭧDQwRW\vF\~Q7>spYw$%A~;~}6¾ g&if_=j,v+UL1(tWake:@Ș>j$Gq2t7S?vL|]u/ .(0E6Mk6hiۺzښOrifޱxm/Gx> Lal%%~{lBsR4*}{0Z/tNIɚpV^#Lf:u@k#RSu =S^ZyuR/.@n&΃z~B=0eg뺆#,Þ[B/?H uUf7y Wy}Bwegל`Wh(||`l`.;Ws?V@"c:iɍL֯PGv6zctM̠':wuW;d=;EveD}9J@B(0iհ bvP1{\P&G7D޴Iy_$-Qjm~Yrr&]CDv%bh|Yzni_ˆR;kg}nJOIIwyuL}{ЌNj}:+3Y?:WJ/N+Rzd=hb;dj͒suݔ@NKMԄ jqzC5@y°hL m;*5ezᕏ=ep XL n?מ:r`۵tŤZ|1v`V뽧_csج'ߤ%oTuumk%%%h)uy]Nk[n 'b2 l.=͜E%gf$[c;s:V-͞WߤWh-j7]4=F-X]>ZLSi[Y*We;Zan(ӇW|e(HNNP5[= r4tP &0<pc#`vTNV GFqvTi*Tyam$ߏWyE*VJKMTfFw>'$-ؽ.Ho.8c"@DADADADADADADADADA~j*֘,N;Pi3599h=goضLgiJ5փy~}&Zd9p֚ e:|hL``b/d9p? fgg+%%hMgXosج, ΩOl0Zh=xdjLmhݻoO[g_l,8a]٭+ӧ0$I]c]:粹:Teꢢ"5a^Kgh,&= =՟^߶“ߢE ܹS J}I%:8 IDAT~,9/ʃPW'Mo}zNƍ쨓zPbNZ~^z=4mswg;5 Y~SVMRXUյڱRf?s:w ;6H:ºi5-maM&O3;1IKeamZh͛7+##v+c ~u~ca]GnF'ټL~PPPbn voC4R,ӟgg %hq}@#M4IÇ Oy^xMZx ) yOw@HkN˖-Sǎmb]X@n+i͖!++K3gd\$mt$^YfJ\8PRF)77Wא!Cl$i:@@_oG I{$# 8磌ŋ91A (Im7֭>}ߴJq7ޗt^ -[ԩSj*}%]&' -ɓ'ꫯVzzvB#;a 7@GxI{j޼ƌ.LÇWBB7`O"I$/@R @eee@۷>}0,ɒ2$53Xs|cS~rpTYYY} kHc %&k.], @ADADADADADADADADA@lT<%''*Lo^={رc5h %$+CnܸQ3fҥK}vUVVs9G R,_{xˇ3o߾;TTTd}馛]uuuG~iԩ@4bnvmvfϞ /Peeeq}}za I~,誫{UWW뮻}_~YƍSMMMYχ֝waw\ďcxꩧtEƍկ_?۷5@u?1kNׯWzz/wy>}zj3 k(ٺuq_Zvf̘:~ ABQ&r|!%KҥKgԞ={<_X-z !CyFUUz~ ABQIIIjݺW$UXXDٳZ~ ABQƍecW$<(~<RSSvZujjjԧOZQu@4 8m&&&jԩg$ď1h ͟?_{768@g =@`)))5o6m3)ѣƌJ;wҿUTT /KZR{~a=@0o<*狔iFɶ[ˎ;T]]OX@?K.ۈxN pppppppppppppppppPfl߾] ,{ァk۶mڿo5BTӦMӴiӴ|r DB2e|An!Dy'tkΝ[A $***t5' "!駟oaDnΝ:t֭[gDШQ06qD;@ x M6v(PiizmZ4ew"@̴ixf [~-Fٱc&IZ2|n!?$@{[HTɏ#@hȎI# _m(F /6Z3z'\r,r!;w2Z3j=~GY7"I$iI.p_"?pN`y DD?: _  Gÿab7J !Bx@0 Bo cG@`1C[@0G @`0C_u V1 aCX>W ` | `!<S `"<. `#c`?cAC4 ?c p#~@0?:08&_MQ1J h#?/`7;I  q 7a wQ A 1 Hp !#<8/#@1Ul7=S=K.4Z?E_$i@!1!E4?`P_  @Bă10#: "aU,xbFY1 [n|n #'vEH:`xb #vD4Y hi.i&EΖv#O H4IŶ}:Ikh @tZRF#(tXҙzZ ?I3l7q@õ|ۍ1,GpuY Ꮿ@hJv#xxk$ v#9 5 }_$c S#=+"K{F*m7`#%H:NRSp6I?sIՖ{Ap$I$I:QRv2$Z @UJ*$]<FO4IENDB`