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d% Z n e Z e e d% e Z e i d& \ Z Z Z Z Z! e GHd' Ge! Gd( Ge Gd) Ge Gd* Ge GHe i" d+ e d, e \ Z Z# e GHx e# D] Z$ d- e$ GHqWe i% Z e GHn d S(. sH An NNTP client class based on RFC 977: Network News Transfer Protocol.
Example:
>>> from nntplib import NNTP
>>> s = NNTP('news')
>>> resp, count, first, last, name = s.group('comp.lang.python')
>>> print 'Group', name, 'has', count, 'articles, range', first, 'to', last
Group comp.lang.python has 51 articles, range 5770 to 5821
>>> resp, subs = s.xhdr('subject', first + '-' + last)
>>> resp = s.quit()
>>>
Here 'resp' is the server response line.
Error responses are turned into exceptions.
To post an article from a file:
>>> f = open(filename, 'r') # file containing article, including header
>>> resp = s.post(f)
>>>
For descriptions of all methods, read the comments in the code below.
Note that all arguments and return values representing article numbers
are strings, not numbers, since they are rarely used for calculations.
Nt NNTPt NNTPReplyErrort NNTPTemporaryErrort NNTPPermanentErrort NNTPProtocolErrort
NNTPDataErrort error_replyt
error_tempt
error_permt error_protot
error_datat NNTPErrorc B s t Z d Z d Z RS( s% Base class for all nntplib exceptionsc G sD t i | | y | d | _ Wn t j
o d | _ n Xd S( Ni s No response given( t Exceptiont __init__t selft argst responset
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( ( ( R R ) s c B s t Z d Z RS( s Unexpected [123]xx reply( R R R ( ( ( R R 2 s c B s t Z d Z RS( s
4xx errors( R R R ( ( ( R R 6 s c B s t Z d Z RS( s
5xx errors( R R R ( ( ( R R : s c B s t Z d Z RS( s" Response does not begin with [1-5]( R R R ( ( ( R R > s c B s t Z d Z RS( s Error in response data( R R R ( ( ( R R B s iw t 100t 215t 220t 221t 222t 224t 230t 231t 282s
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sm Initialize an instance. Arguments:
- host: hostname to connect to
- port: port to connect to (default the standard NNTP port)
- user: username to authenticate with
- password: password to use with username
- readermode: if true, send 'mode reader' command after
connecting.
readermode is sometimes necessary if you are connecting to an
NNTP server on the local machine and intend to call
reader-specific comamnds, such as `group'. If you get
unexpected NNTPPermanentErrors, you might need to set
readermode.
t rbi s mode readeri t 480i Ni s authinfo user t 381s authinfo pass t 281( t hostR t portt sockett AF_INETt SOCK_STREAMt sockt connectt makefilet filet debuggingt getrespt welcomet readermode_afterautht
readermodet shortcmdR R t et userR t usenetrct netrct credentialst authenticatorst autht passwordt IOErrort respR (
R R# R$ R3 R9 R0 R4 R2 R5 R8 R; R6 R/ ( ( R R
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c C s' | i o d Gt | i GHn | i S( s Get the welcome message from the server
(this is read and squirreled away by __init__()).
If the response code is 200, posting is allowed;
if it 201, posting is not allowed.s *welcome*N( R R, t reprR. ( R ( ( R t
getwelcome s
c C s
| | _ d S( s Set the debugging level. Argument 'level' means:
0: no debugging output (default)
1: print commands and responses but not body text etc.
2: also print raw lines read and sent before stripping CR/LFN( t levelR R, ( R R> ( ( R t set_debuglevel s c C sA | t } | i d j o d Gt | GHn | i i | d S( s6 Internal: send one line to the server, appending CRLF.i s *put*N( t linet CRLFR R, R< R( t sendall( R R@ ( ( R t putline s
c C s. | i o d Gt | GHn | i | d S( s= Internal: send one command to the server (through putline()).s *cmd*N( R R, R< R@ RC ( R R@ ( ( R t putcmd s
c C s | i i } | i d j o d Gt | GHn | p
t n | d t j o | d } n | d t j o | d } n | S( sn Internal: return one line from the server, stripping CRLF.
Raise EOFError if the connection is closed.i s *get*iiN( R R+ t readlineR@ R, R< t EOFErrorRA ( R R@ ( ( R t getline s
c C s | i } | i o d Gt | GHn | d } | d j o t | n | d j o t | n | d j o t | n | S( sj Internal: get a response from the server.
Raise various errors if the response indicates an error.s *resp*i t 4t 5t 123N( R RG R; R, R< t cR R R ( R RK R; ( ( R R- s
c C s d } z t | t o t | d } } n | i } | d t j o t
| n g } xk | i } | d j o Pn | d d j o | d } n | o | i | d qf | i | qf WWd | o | i n X| | f S( s~ Internal: get a response plus following text from the server.
Raise various errors if the response indicates an error.t wi i t .i s ..s
N( t Nonet
openedFilet
isinstanceR+ t strt openR R- R; t LONGRESPR t listRG R@ t writet appendt close( R R+ RT RO R@ R; ( ( R t getlongresp s.
c C s | i | | i S( s. Internal: send a command and get the response.N( R RD R@ R- ( R R@ ( ( R R1 s
c C s | i | | i | S( sB Internal: send a command and get the response plus following text.N( R RD R@ RX R+ ( R R@ R+ ( ( R t longcmd s
c C s | i d | d | | S( s Process a NEWGROUPS command. Arguments:
- date: string 'yymmdd' indicating the date
- time: string 'hhmmss' indicating the time
Return:
- resp: server response if successful
- list: list of newsgroup namess
NEWGROUPS t N( R RY t datet timeR+ ( R R[ R\ R+ ( ( R t newgroups s c C s* d | d | d | } | i | | S( s Process a NEWNEWS command. Arguments:
- group: group name or '*'
- date: string 'yymmdd' indicating the date
- time: string 'hhmmss' indicating the time
Return:
- resp: server response if successful
- list: list of message idss NEWNEWS RZ N( t groupR[ R\ t cmdR RY R+ ( R R^ R[ R\ R+ R_ ( ( R t newnews s c C sY | i d | \ } } x4 t t | D] } t | | i | | <q+ W| | f S( s Process a LIST command. Return:
- resp: server response if successful
- list: list of (group, last, first, flag) (strings)t LISTN(
R RY R+ R; RT t ranget lent it tuplet split( R R+ Rd RT R; ( ( R RT ! s c C s@ | i | \ } } t | d j o d Sn
| d d Sd S( s Get a description for a single group. If more than one
group matches ('group' is a pattern), return the first. If no
group matches, return an empty string.
This elides the response code from the server, since it can
only be '215' or '285' (for xgtitle) anyway. If the response
code is needed, use the 'descriptions' method.
NOTE: This neither checks for a wildcard in 'group' nor does
it check whether the group actually exists.i t i N( R t descriptionsR^ R; t linesRc ( R R^ Ri R; ( ( R t description, s
c C s t i d } | i d | \ } } | d d j o | i d | \ } } n g } xG | D]? } | i
| i } | o | i
| i d d qc qc W| | f S( s' Get descriptions for a range of groups.s ^(?P<group>[^ ]+)[ ]+(.*)$s LIST NEWSGROUPS i R s XGTITLE i i N( t ret compilet line_patR RY t
group_patternR; t raw_linesRi t raw_linet searcht stript matchRV R^ ( R Rn Rm Ro Ri Rp R; Rs ( ( R Rh ? s !c C s | i d | } | d d j o t | n | i } d } } } t
| } | d j oe | d } | d j oJ | d } | d j o/ | d } | d j o | d i } q q q n | | | | | f S( s* Process a GROUP command. Argument:
- group: the group name
Returns:
- resp: server response if successful
- count: number of articles (string)
- first: first article number (string)
- last: last article number (string)
- name: the group names GROUP i t 211i i i i N(
R R1 t nameR; R Rf t wordst countt firstt lastRc t nt lower( R Ru Rw Ry Rz Rv R; Rx ( ( R R^ P s
c C s | i d | S( so Process a HELP command. Returns:
- resp: server response if successful
- list: list of stringst HELPN( R RY R+ ( R R+ ( ( R t helpj s c C s | d d j o t | n | i } d } d } t | } | d j o) | d } | d j o | d } q{ n | | | f S( s= Internal: parse the response of a STAT, NEXT or LAST command.i t 22i Rg i N( R; R Rf Rv t nrt idRc Rz ( R R; Rz Rv R R ( ( R t statparseq s
c C s | i | } | i | S( s/ Internal: process a STAT, NEXT or LAST command.N( R R1 R@ R; R ( R R@ R; ( ( R t statcmd s c C s | i d | S( s Process a STAT command. Argument:
- id: article number or message id
Returns:
- resp: server response if successful
- nr: the article number
- id: the message ids STAT N( R R R ( R R ( ( R t stat s c C s
| i d S( s; Process a NEXT command. No arguments. Return as for STAT.t NEXTN( R R ( R ( ( R t next s c C s
| i d S( s; Process a LAST command. No arguments. Return as for STAT.t LASTN( R R ( R ( ( R Ry s c C s@ | i | | \ } } | i | \ } } } | | | | f S( s2 Internal: process a HEAD, BODY or ARTICLE command.N( R RY R@ R+ R; RT R R R ( R R@ R+ R; RT R R ( ( R t artcmd s c C s | i d | S( s Process a HEAD command. Argument:
- id: article number or message id
Returns:
- resp: server response if successful
- nr: article number
- id: message id
- list: the lines of the article's headers HEAD N( R R R ( R R ( ( R t head s c C s | i d | | S( sk Process a BODY command. Argument:
- id: article number or message id
- file: Filename string or file object to store the article in
Returns:
- resp: server response if successful
- nr: article number
- id: message id
- list: the lines of the article's body or an empty list
if file was useds BODY N( R R R R+ ( R R R+ ( ( R t body s c C s | i d | S( s Process an ARTICLE command. Argument:
- id: article number or message id
Returns:
- resp: server response if successful
- nr: article number
- id: message id
- list: the lines of the articles ARTICLE N( R R R ( R R ( ( R t article s c C s
| i d S( sP Process a SLAVE command. Returns:
- resp: server response if successfult SLAVEN( R R1 ( R ( ( R t slave s c
C s t i d } | i d | d | | \ } } xT t
t | D]@ } | | } | i | } | o | i d d | | <qF qF W| | f S( s Process an XHDR command (optional server extension). Arguments:
- hdr: the header type (e.g. 'subject')
- str: an article nr, a message id, or a range nr1-nr2
Returns:
- resp: server response if successful
- list: list of (nr, value) stringss ^([0-9]+) ?(.*)
?s XHDR RZ i i N( Rk Rl t patR RY t hdrRQ R+ R; Ri Rb Rc Rd R@ Rs t mR^ (
R R RQ R+ R Rd R Ri R@ R; ( ( R t xhdr s $
c C s | i d | d | | \ } } g } x | D] } | i d } yO | i | d | d | d | d | d | d i | d
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s( Process an XOVER command (optional server extension) Arguments:
- start: start of range
- end: end of range
Returns:
- resp: server response if successful
- list: list of (art-nr, subject, poster, date,
id, references, size, lines)s XOVER t -s i i i i i i i i N( R RY t startt endR+ R; Ri t xover_linesR@ Rf t elemRV R R ( R R R R+ Ri R R R@ R; ( ( R t xover s $ Oc C s t i d } | i d | | \ } } g } xG | D]? } | i | i } | o | i | i d d q8 q8 W| | f S( s Process an XGTITLE command (optional server extension) Arguments:
- group: group name wildcard (i.e. news.*)
Returns:
- resp: server response if successful
- list: list of (name,title) stringss ^([^ ]+)[ ]+(.*)$s XGTITLE i i N( Rk Rl Rm R RY R^ R+ R; Ro Ri Rp Rq Rr Rs RV ( R R^ R+ Rm Ro Ri Rp R; Rs ( ( R t xgtitle s !c C sz | i d | } | d d j o t | n y | i \ } } Wn t j
o t | n X| | f Sd S( s Process an XPATH command (optional server extension) Arguments:
- id: Message id of article
Returns:
resp: server response if successful
path: directory path to articles XPATH i t 223N( R R1 R R; R Rf t resp_numt patht
ValueError( R R R; R R ( ( R t xpath s c C s | i d } | d d j o t | n | i } t | d j o t | n | d d d !} | d d } t | d j p t | d j o t | n | | | f S(
s Process the DATE command. Arguments:
None
Returns:
resp: server response if successful
date: Date suitable for newnews/newgroups commands etc.
time: Time suitable for newnews/newgroups commands etc.t DATEi t 111i i i ii N(
R R1 R; R Rf R Rc R R[ R\ ( R R R\ R[ R; ( ( R R[ s &c C s | i d } | d d j o t | n xh | i } | p Pn | d d j o | d } n | d d j o d | } n | i | q3 W| i d | i S( s Process a POST command. Arguments:
- f: file containing the article
Returns:
- resp: server response if successfult POSTi t 3i is
RM N( R R1 R; R t fRE R@ RC R- ( R R R@ R; ( ( R t post& s
c C s | i d | } | d d j o t | n xh | i } | p Pn | d d j o | d } n | d d j o d | } n | i | q7 W| i d | i S( s Process an IHAVE command. Arguments:
- id: message-id of the article
- f: file containing the article
Returns:
- resp: server response if successful
Note that if the server refuses the article an exception is raised.s IHAVE i R i is
RM N(
R R1 R R; R R RE R@ RC R- ( R R R R; R@ ( ( R t ihave< s
c C s9 | i d } | i i | i i | ` | ` | S( sd Process a QUIT command and close the socket. Returns:
- resp: server response if successfult QUITN( R R1 R; R+ RW R( ( R R; ( ( R t quitT s
() R R t NNTP_PORTRN t TrueR
R= R? t debugRC RD RG R- RX R1 RY R] R` RT Rj Rh R^ R} R R R R Ry R R R R R R R R R R[ R R R ( ( ( R R ] sH N
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NNTPSERVERRM iR0 s comp.lang.pythont Groupt hass articles, ranget tot subjectR s %7s %s(& R Rk R% t __all__R R R R R R R R R R R R
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