golden hour

/opt/alt/python311/lib64/python3.11

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__future__.py	5.1 KB
__hello__.py	227 B
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_bootsubprocess.py	2.61 KB
_collections_abc.py	29.49 KB
_compat_pickle.py	8.56 KB
_compression.py	5.55 KB
_markupbase.py	14.31 KB
_osx_support.py	21.51 KB
_py_abc.py	6.04 KB
_pydecimal.py	223.83 KB
_pyio.py	91.99 KB
_sitebuiltins.py	3.05 KB
_strptime.py	24.58 KB
_sysconfigdata__linux_x86_64-linux-gnu.py	57.93 KB
_sysconfigdata_d_linux_x86_64-linux-gnu.py	57.16 KB
_threading_local.py	7.05 KB
_weakrefset.py	5.75 KB
abc.py	6.38 KB
aifc.py	33.41 KB
antigravity.py	500 B
argparse.py	97.93 KB
ast.py	60 KB
asynchat.py	11.3 KB
asyncio	-
asyncore.py	19.83 KB
base64.py	20.55 KB
bdb.py	31.7 KB
bisect.py	3.06 KB
bz2.py	11.57 KB
cProfile.py	6.21 KB
calendar.py	24.15 KB
cgi.py	33.63 KB
cgitb.py	12.13 KB
chunk.py	5.37 KB
cmd.py	14.52 KB
code.py	10.37 KB
codecs.py	36.28 KB
codeop.py	5.77 KB
collections	-
colorsys.py	3.97 KB
compileall.py	19.78 KB
concurrent	-
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configparser.py	54.36 KB
contextlib.py	26.77 KB
contextvars.py	129 B
copy.py	8.48 KB
copyreg.py	7.5 KB
crypt.py	3.82 KB
csv.py	15.65 KB
ctypes	-
curses	-
dataclasses.py	57.1 KB
datetime.py	89.68 KB
dbm	-
decimal.py	320 B
difflib.py	81.36 KB
dis.py	28.23 KB
distutils	-
doctest.py	103.81 KB
email	-
encodings	-
ensurepip	-
enum.py	77.72 KB
filecmp.py	9.94 KB
fileinput.py	15.35 KB
fnmatch.py	5.86 KB
fractions.py	28 KB
ftplib.py	34.98 KB
functools.py	37.51 KB
genericpath.py	5.12 KB
getopt.py	7.31 KB
getpass.py	5.85 KB
gettext.py	20.82 KB
glob.py	8.53 KB
graphlib.py	9.43 KB
gzip.py	23.51 KB
hashlib.py	11.49 KB
heapq.py	22.48 KB
hmac.py	7.54 KB
html	-
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imaplib.py	53.92 KB
imghdr.py	3.86 KB
imp.py	10.36 KB
importlib	-
inspect.py	120.53 KB
io.py	4.22 KB
ipaddress.py	79.51 KB
json	-
keyword.py	1.04 KB
lib-dynload	-
lib2to3	-
linecache.py	5.52 KB
locale.py	77.24 KB
logging	-
lzma.py	12.97 KB
mailbox.py	76.98 KB
mailcap.py	9.15 KB
mimetypes.py	22.42 KB
modulefinder.py	23.14 KB
multiprocessing	-
netrc.py	6.77 KB
nntplib.py	40.12 KB
ntpath.py	28.09 KB
nturl2path.py	2.82 KB
numbers.py	10.11 KB
opcode.py	10.2 KB
operator.py	10.71 KB
optparse.py	58.95 KB
os.py	38.6 KB
pathlib.py	47.43 KB
pdb.py	62.68 KB
pickle.py	63.61 KB
pickletools.py	91.66 KB
pipes.py	8.77 KB
pkgutil.py	24.06 KB
platform.py	41.3 KB
plistlib.py	27.92 KB
poplib.py	14.84 KB
posixpath.py	16.67 KB
pprint.py	24.01 KB
profile.py	22.36 KB
pstats.py	28.67 KB
pty.py	6.17 KB
py_compile.py	7.65 KB
pyclbr.py	11.13 KB
pydoc.py	110.02 KB
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queue.py	11.23 KB
quopri.py	7.11 KB
random.py	31.41 KB
re	-
reprlib.py	5.31 KB
rlcompleter.py	7.64 KB
runpy.py	12.85 KB
sched.py	6.2 KB
secrets.py	1.98 KB
selectors.py	19.21 KB
shelve.py	8.36 KB
shlex.py	13.18 KB
shutil.py	55.19 KB
signal.py	2.44 KB
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site.py	22.45 KB
smtpd.py	30.44 KB
smtplib.py	44.37 KB
sndhdr.py	7.27 KB
socket.py	36.68 KB
socketserver.py	26.94 KB
sqlite3	-
sre_compile.py	231 B
sre_constants.py	232 B
sre_parse.py	229 B
ssl.py	53.03 KB
stat.py	5.36 KB
statistics.py	46.59 KB
string.py	11.51 KB
stringprep.py	12.61 KB
struct.py	257 B
subprocess.py	86.65 KB
sunau.py	18.05 KB
symtable.py	10.13 KB
sysconfig.py	29.6 KB
tabnanny.py	11.05 KB
tarfile.py	109.33 KB
telnetlib.py	22.75 KB
tempfile.py	31.13 KB
textwrap.py	19.26 KB
this.py	1003 B
threading.py	56.87 KB
timeit.py	13.21 KB
token.py	2.33 KB
tokenize.py	25.72 KB
tomllib	-
trace.py	28.51 KB
traceback.py	39.6 KB
tracemalloc.py	17.62 KB
tty.py	879 B
types.py	9.83 KB
typing.py	118.12 KB
unittest	-
urllib	-
uu.py	7.17 KB
uuid.py	26.95 KB
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wave.py	21.31 KB
weakref.py	21.01 KB
webbrowser.py	24.56 KB
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xml	-
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zipfile.py	92.23 KB
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zoneinfo	-

Edit: 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 errno
import re
import socket
import sys

try:
    import ssl
    HAVE_SSL = True
except ImportError:
    HAVE_SSL = False

__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 = b'\r'
LF = b'\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)
            CAPA                    capa()
            STLS                    stls()
            UTF8                    utf8()

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.
    """

encoding = 'UTF-8'

def __init__(self, host, port=POP3_PORT,
                 timeout=socket._GLOBAL_DEFAULT_TIMEOUT):
        self.host = host
        self.port = port
        self._tls_established = False
        sys.audit("poplib.connect", self, host, port)
        self.sock = self._create_socket(timeout)
        self.file = self.sock.makefile('rb')
        self._debugging = 0
        self.welcome = self._getresp()

def _create_socket(self, timeout):
        if timeout is not None and not timeout:
            raise ValueError('Non-blocking socket (timeout=0) is not supported')
        return socket.create_connection((self.host, self.port), timeout)

def _putline(self, line):
        if self._debugging > 1: print('*put*', repr(line))
        sys.audit("poplib.putline", self, line)
        self.sock.sendall(line + CRLF)

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

def _putcmd(self, line):
        if self._debugging: print('*cmd*', repr(line))
        line = bytes(line, self.encoding)
        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[:1] == 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))
        if not resp.startswith(b'+'):
            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 != b'.':
            if line.startswith(b'..'):
                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."""
        resp = self._shortcmd('QUIT')
        self.close()
        return resp

def close(self):
        """Close the connection without assuming anything about it."""
        try:
            file = self.file
            self.file = None
            if file is not None:
                file.close()
        finally:
            sock = self.sock
            self.sock = None
            if sock is not None:
                try:
                    sock.shutdown(socket.SHUT_RDWR)
                except OSError as exc:
                    # The server might already have closed the connection.
                    # On Windows, this may result in WSAEINVAL (error 10022):
                    # An invalid operation was attempted.
                    if (exc.errno != errno.ENOTCONN
                       and getattr(exc, 'winerror', 0) != 10022):
                        raise
                finally:
                    sock.close()

#__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, password):
        """Authorisation

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

Args:
                user     - mailbox user;
                password - mailbox password.

NB: mailbox is locked by server from here to 'quit()'
        """
        secret = bytes(password, self.encoding)
        m = self.timestamp.match(self.welcome)
        if not m:
            raise error_proto('-ERR APOP not supported by server')
        import hashlib
        digest = m.group(1)+secret
        digest = hashlib.md5(digest).hexdigest()
        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')

def utf8(self):
        """Try to enter UTF-8 mode (see RFC 6856). Returns server response.
        """
        return self._shortcmd('UTF8')

def capa(self):
        """Return server capabilities (RFC 2449) as a dictionary
        >>> c=poplib.POP3('localhost')
        >>> c.capa()
        {'IMPLEMENTATION': ['Cyrus', 'POP3', 'server', 'v2.2.12'],
         'TOP': [], 'LOGIN-DELAY': ['0'], 'AUTH-RESP-CODE': [],
         'EXPIRE': ['NEVER'], 'USER': [], 'STLS': [], 'PIPELINING': [],
         'UIDL': [], 'RESP-CODES': []}
        >>>

Really, according to RFC 2449, the cyrus folks should avoid
        having the implementation split into multiple arguments...
        """
        def _parsecap(line):
            lst = line.decode('ascii').split()
            return lst[0], lst[1:]

caps = {}
        try:
            resp = self._longcmd('CAPA')
            rawcaps = resp[1]
            for capline in rawcaps:
                capnm, capargs = _parsecap(capline)
                caps[capnm] = capargs
        except error_proto:
            raise error_proto('-ERR CAPA not supported by server')
        return caps

def stls(self, context=None):
        """Start a TLS session on the active connection as specified in RFC 2595.

context - a ssl.SSLContext
        """
        if not HAVE_SSL:
            raise error_proto('-ERR TLS support missing')
        if self._tls_established:
            raise error_proto('-ERR TLS session already established')
        caps = self.capa()
        if not 'STLS' in caps:
            raise error_proto('-ERR STLS not supported by server')
        if context is None:
            context = ssl._create_stdlib_context()
        resp = self._shortcmd('STLS')
        self.sock = context.wrap_socket(self.sock,
                                        server_hostname=self.host)
        self.file = self.sock.makefile('rb')
        self._tls_established = True
        return resp

if HAVE_SSL:

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

Instantiate with: POP3_SSL(hostname, port=995, keyfile=None, certfile=None,
                                   context=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
               context - a ssl.SSLContext

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

def __init__(self, host, port=POP3_SSL_PORT, keyfile=None, certfile=None,
                     timeout=socket._GLOBAL_DEFAULT_TIMEOUT, context=None):
            if context is not None and keyfile is not None:
                raise ValueError("context and keyfile arguments are mutually "
                                 "exclusive")
            if context is not None and certfile is not None:
                raise ValueError("context and certfile arguments are mutually "
                                 "exclusive")
            if keyfile is not None or certfile is not None:
                import warnings
                warnings.warn("keyfile and certfile are deprecated, use a "
                              "custom context instead", DeprecationWarning, 2)
            self.keyfile = keyfile
            self.certfile = certfile
            if context is None:
                context = ssl._create_stdlib_context(certfile=certfile,
                                                     keyfile=keyfile)
            self.context = context
            POP3.__init__(self, host, port, timeout)

def _create_socket(self, timeout):
            sock = POP3._create_socket(self, timeout)
            sock = self.context.wrap_socket(sock,
                                            server_hostname=self.host)
            return sock

def stls(self, keyfile=None, certfile=None, context=None):
            """The method unconditionally raises an exception since the
            STLS command doesn't make any sense on an already established
            SSL/TLS session.
            """
            raise error_proto('-ERR TLS session already established')

__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()