|
|
Эта страница руководства для версии 10.9 Mac OS XЕсли Вы выполняете различную версию Mac OS X, просматриваете документацию локально:
Читать страницы руководстваСтраницы руководства предназначаются как справочник для людей, уже понимающих технологию.
|
nntp(n) Tcl NNTP Client Library nntp(n)
____________________________________________________________________________________________________________
NAME
nntp - Tcl client for the NNTP protocol
SYNOPSIS
package require Tcl 8.2
package require nntp ?0.2.1?
::nntp::nntp ?host? ?port? ?nntpName?
nntpName method ?arg arg ...?
nntpName article ?msgid?
nntpName authinfo ?user? ?pass?
nntpName body ?msgid?
nntpName configure
nntpName configure option
nntpName configure option value ...
nntpName cget option
nntpName date
nntpName group ?group?
nntpName head ?msgid?
nntpName help
nntpName last
nntpName list
nntpName listgroup ?group?
nntpName mode_reader
nntpName newgroups since
nntpName newnews
nntpName newnews since
nntpName newnews group ?since?
nntpName next
nntpName post article
nntpName slave
nntpName stat ?msgid?
nntpName quit
nntpName xgtitle ?group_pattern?
nntpName xhdr field ?range?
nntpName xover ?range?
nntpName xpat field range ?pattern_list?
____________________________________________________________________________________________________________
DESCRIPTION
The package nntp provides a simple Tcl-only client library for the NNTP protocol. It works by open-ing opening
ing the standard NNTP socket on the server, and then providing a Tcl API to access the NNTP protocol
commands. All server errors are returned as Tcl errors (thrown) which must be caught with the Tcl
catch command.
COMMANDS
::nntp::nntp ?host? ?port? ?nntpName?
The command opens a socket connection to the specified NNTP server and creates a new nntp
object with an associated global Tcl command whose name is nntpName. This command may be used
to access the various NNTP protocol commands for the new connection. The default port number
is "119" and the default host is "news". These defaults can be overridden with the environment
variables NNTPPORT and NNTPHOST respectively.
Some of the commands supported by this package are not part of the nntp rfc 977
(http://www.rfc-editor.org/rfc/rfc977.txt) and will not be available (or implemented) on all
nntp servers.
The access command nntpName has the following general form:
nntpName method ?arg arg ...?
Option and the args determine the exact behavior of the command.
nntpName article ?msgid?
Query the server for article msgid from the current group. The article is returned as a valid
tcl list which contains the headers, followed by a blank line, and then followed by the body
of the article. Each element in the list is one line of the article.
nntpName authinfo ?user? ?pass?
Send authentication information (username and password) to the server.
nntpName body ?msgid?
Query the server for the body of the article msgid from the current group. The body of the
article is returned as a valid tcl list. Each element in the list is one line of the body of
the article.
nntpName configure
nntpName configure option
nntpName configure option value ...
nntpName cget option
Query and configure options of the nntp connection object. Currently only one option is sup-ported, supported,
ported, -binary. When set articles are retrieved as binary data instead of text. The only
methods affected by this are article and body.
One application of this option would be the download of articles containing yEnc encoded
images. Although encoded the data is still mostly binary and retrieving it as text will cor-rupt corrupt
rupt the information.
See package yencode for both encoder and decoder of such data.
nntpName date
Query the server for the servers current date. The date is returned in the format YYYYMMDDHH-MMSS. YYYYMMDDHHMMSS.
MMSS.
nntpName group ?group?
Optionally set the current group, and retrieve information about the currently selected group.
Returns the estimated number of articles in the group followed by the number of the first
article in the group, followed by the last article in the group, followed by the name of the
group.
nntpName head ?msgid?
Query the server for the headers of the article msgid from the current group. The headers of
the article are returned as a valid tcl list. Each element in the list is one line of the
headers of the article.
nntpName help
Retrieves a list of the commands that are supported by the news server that is currently
attached to.
nntpName last
Sets the current article pointer to point to the previous message (if there is one) and
returns the msgid of that message.
nntpName list
Returns a tcl list of valid newsgroups and associated information. Each newsgroup is returned
as an element in the tcl list with the following format:
group last first p
where <group> is the name of the newsgroup, <last> is the number of the last known article
currently in that newsgroup, <first> is the number of the first article currently in the news-group, newsgroup,
group, and <p> is either 'y' or 'n' indicating whether posting to this newsgroup is allowed
('y') or prohibited ('n').
The <first> and <last> fields will always be numeric. They may have leading zeros. If the
<last> field evaluates to less than the <first> field, there are no articles currently on file
in the newsgroup.
nntpName listgroup ?group?
Query the server for a list of all the messages (message numbers) in the group specified by
the argument group or by the current group if the group argument was not passed.
nntpName mode_reader
Query the server for its nntp 'MODE READER' response string.
nntpName newgroups since
Query the server for a list of all the new newsgroups created since the time specified by the
argument since. The argument since can be any time string that is understood by clock scan.
The tcl list of newsgroups is returned in a similar form to the list of groups returned by the
nntpName list command. Each element of the list has the form:
group last first p
where <group> is the name of the newsgroup, <last> is the number of the last known article
currently in that newsgroup, <first> is the number of the first article currently in the news-group, newsgroup,
group, and <p> is either 'y' or 'n' indicating whether posting to this newsgroup is allowed
('y') or prohibited ('n').
nntpName newnews
Query the server for a list of new articles posted to the current group in the last day.
nntpName newnews since
Query the server for a list of new articles posted to the current group since the time speci-fied specified
fied by the argument since. The argument since can be any time string that is understood by
clock scan.
nntpName newnews group ?since?
Query the server for a list of new articles posted to the group specified by the argument
group since the time specified by the argument since (or in the past day if no since argument
is passed. The argument since can be any time string that is understood by clock scan.
nntpName next
Sets the current article pointer to point to the next message (if there is one) and returns
the msgid of that message.
nntpName post article
Posts an article of the form specified in RFC 1036 (http://www.rfc-editor.org/rfc/rfc1_36.txt,
successor to RFC 850) to the current news group.
nntpName slave
Identifies a connection as being made from a slave nntp server. This might be used to indicate
that the connection is serving multiple people and should be given priority. Actual use is
entirely implementation dependent and may vary from server to server.
nntpName stat ?msgid?
The stat command is similar to the article command except that no text is returned. When
selecting by message number within a group, the stat command serves to set the current article
pointer without sending text. The returned acknowledgment response will contain the message-id, messageid,
id, which may be of some value. Using the stat command to select by message-id is valid but
of questionable value, since a selection by message-id does NOT alter the "current article
pointer"
nntpName quit
Gracefully close the connection after sending a NNTP QUIT command down the socket.
nntpName xgtitle ?group_pattern?
Returns a tcl list where each element is of the form:
newsgroup description
If a group_pattern is specified then only newsgroups that match the pattern will have their
name and description returned.
nntpName xhdr field ?range?
Returns the specified header field value for the current message or for a list of messages
from the current group. field is the title of a field in the header such as from, subject,
date, etc. If range is not specified or is "" then the current message is queried. The com-mand command
mand returns a list of elements where each element has the form of:
msgid value
Where msgid is the number of the message and value is the value set for the queried field.
The range argument can be in any of the following forms:
"" The current message is queried.
msgid1-msgid2
All messages between msgid1 and msgid2 (including msgid1 and msgid2) are queried.
msgid1 msgid2
All messages between msgid1 and msgid2 (including msgid1 and msgid2) are queried.
nntpName xover ?range?
Returns header information for the current message or for a range of messages from the current
group. The information is returned in a tcl list where each element is of the form:
msgid subject from date idstring bodysize headersize xref
If range is not specified or is "" then the current message is queried. The range argument
can be in any of the following forms:
"" The current message is queried.
msgid1-msgid2
All messages between msgid1 and msgid2 (including msgid1 and msgid2) are queried.
msgid1 msgid2
All messages between msgid1 and msgid2 (including msgid1 and msgid2) are queried.
nntpName xpat field range ?pattern_list?
Returns the specified header field value for a specified message or for a list of messages
from the current group where the messages match the pattern(s) given in the pattern_list.
field is the title of a field in the header such as from, subject, date, etc. The information
is returned in a tcl list where each element is of the form:
msgid value
Where msgid is the number of the message and value is the value set for the queried field.
The range argument can be in any of the following forms:
msgid The message specified by msgid is queried.
msgid1-msgid2
All messages between msgid1 and msgid2 (including msgid1 and msgid2) are queried.
msgid1 msgid2
All messages between msgid1 and msgid2 (including msgid1 and msgid2) are queried.
EXAMPLE
A bigger example for posting a single article.
package require nntp
set n [nntp::nntp NNTP_SERVER]
$n post "From: USER@DOMAIN.EXT (USER_FULL)
Path: COMPUTERNAME!USERNAME
Newsgroups: alt.test
Subject: Tcl test post -ignore
Message-ID: <[pid][clock seconds]
@COMPUTERNAME>
Date: [clock format [clock seconds] -format "%a, %d %
b %y %H:%M:%S GMT" -gmt true]
Test message body"
BUGS, IDEAS, FEEDBACK
This document, and the package it describes, will undoubtedly contain bugs and other problems.
Please report such in the category nntp of the Tcllib SF Trackers [http://source -
forge.net/tracker/? group_id=12883]. Please also report any ideas for enhancements you may have for
either package and/or documentation.
KEYWORDS
news, nntp, nntpclient, rfc 1036, rfc 977
CATEGORY
Networking
nntp 1.5.1 nntp(n)
|
Сообщение о проблемах
Способ сообщить о проблеме с этой страницей руководства зависит от типа проблемы:
- Ошибки содержания
- Ошибки отчета в содержании этой документации к проекту Tcl.
- Отчеты об ошибках
- Сообщите об ошибках в функциональности описанного инструмента или API к Apple через Генератор отчетов Ошибки и к проекту Tcl через их страницу создания отчетов ошибки.
- Форматирование проблем
- Отчет, форматирующий ошибки в интерактивной версии этих страниц со ссылками на отзыв ниже.