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sudancam
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..
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lib64
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python2.7
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poplib.py
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"""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 countains 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()
/home/sudancam/./.././.././lib64/python2.7/poplib.py