add newt(1): nntp client for use with nntpfs(4)
This commit is contained in:
stanley lieber
parent
5d3d085492
commit
8347075fd9
246
rc/bin/newt
Executable file
246
rc/bin/newt
Executable file
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@ -0,0 +1,246 @@
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#!/bin/rc
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# bloated, featureful usenet reader for use with nntpfs
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rfork en
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ramfs
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argv0=$0
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if(~ $#editor 0)
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editor=hold
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group=alt/test
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maxposts=30
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mnt=/mnt/news
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if(~ $#newtname 0)
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newtname=newt@dont-email.me
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fn enterpost{
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{
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echo From: $"newtname
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echo Newsgroups: `{echo $group | sed 's/\//\./g'}
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echo Subject: $"subject
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echo
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} >/tmp/post
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eval $editor /tmp/post
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cat /tmp/post >$mnt/$group/post
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}
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fn f { du -a $* | sed 's/^.* //g' }
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fn fmtd{
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date=`{cat}
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if(! ~ $date(1) [0-9]*)
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date=`{nshift $date}
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da=$date(1)
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switch($date(2)){
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case Jan; mo=1
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case Feb; mo=2
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case Mar; mo=3
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case Apr; mo=4
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case May; mo=5
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case Jun; mo=6
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case Jul; mo=7
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case Aug; mo=8
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case Sep; mo=9
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case Oct; mo=10
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case Nov; mo=11
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case Dec; mo=12
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}
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if(! ~ $date(3) `{date | awk '{print $6;}'})
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ti=$date(3)
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if not
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ti=`{echo $date(4) | awk '{print substr($0,0,5);}'}
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echo $mo/$da $ti
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}
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fn geth{
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for(i in $*){
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from=`{awk -F ' ' '{print $3;}' $i/xover}
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if(! ~ $#from 0 && ! ~ $#from 1){
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nfrom=`{
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for(i in $from){
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if(~ $i *@*)
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echo $i | sed 's/(<|>)//g'
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}
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}
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if(! ~ $#nfrom 0)
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from=$nfrom
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}
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if(! ~ $#from 0){
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date=`{awk -F ' ' '{print $4;}' $i/xover >[2]/dev/null | fmtd}
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awk -v date'='$"date -v from'='$from(1) -F ' ' \
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'{print " " $1 " " date " " from " " substr($2,0,50);}' $i/xover >[2]/dev/null
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}
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if not
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echo ' '$"i' nil nil nil'
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}
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}
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fn getposts{ ls | grep -e '^[0-9]+$' | sort -n | tail -$maxposts }
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fn k{
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kmnt=`{echo $mnt | sed 's/\//\\\//g'}
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f $mnt/$* |
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grep -v -e '\/([0-9]+(\/|$)|post$)' |
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sed 's/^'$"kmnt'\// g /g' |
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sort
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}
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fn nshift{ shift; echo $* }
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fn printhelp{
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echo '[0-9]+ print specified message
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b back
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e enter message
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f jump to first message
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g ... go to specified group
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h print message headlines
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help print this help message
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k ... list sub-groups under specified group
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l jump to last message
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n next
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p print message with minimal headers
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P print message with full headers
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q quit
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r reply to message
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y synchronize message list with server
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" print message in quoted form, suitable for reply
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|cmd pipe message body to a command
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||cmd pipe raw message to a command
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? print debug information'
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}
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fn printp{
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if(test -d $mnt/$group/$1){
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grep -e '(^From|^Newsgroups|^Subject|^Date)' $1/header
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echo
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cat $1/body
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}
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echo
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prompt=$group/$1
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}
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fn printpp{
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if(test -d $mnt/$group/$1){
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cat $1/article
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}
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echo
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prompt=$group/$1
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}
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fn usage{
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echo usage: $argv0 '[ -f newsgroup ] [ -m mountpoint ] [ -p maxposts ]' >[1=2]
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exit usage
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}
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while(~ $1 -*){
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switch($1){
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case -f
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group=`{echo $2 | sed 's/\./\//g'}
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shift
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case -m
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mnt=$2
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shift
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case -p
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maxposts=$2
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shift
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case *
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usage
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}
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shift
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}
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if(! ~ $#* 0)
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usage
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prompt=$group
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if(! test -d $mnt/$group){
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echo !$mnt/$group does not exist >[1=2]
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exit
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}
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builtin cd $mnt/$group
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go=()
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posts=`{getposts}
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geth $posts >/tmp/h
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post=$posts(1)
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echo $#posts messages
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while(){
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echo -n $"prompt': '
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cmd=`{read}
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switch($cmd){
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case [0-9]*
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post=$cmd(1)
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printp $post
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case b
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if(! ~ $post $posts(1)){
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post=`{echo $post^-1 | bc}
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printp $post
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}
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case e
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enterpost
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case f
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post=$posts(1)
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printp $post
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case g' '*
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ngroup=`{nshift $cmd | sed 's/\./\//g'}
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if(test -d $mnt/$ngroup){
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if(grep -s -e '^[0-9]+$' <{ls -p $mnt/$ngroup}){
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group=$ngroup
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builtin cd $mnt/$group
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go=()
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posts=`{getposts}
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geth $posts >/tmp/h
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post=$posts(1)
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prompt=$group
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echo $#posts messages
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}
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if not
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echo !$ngroup contains no messages
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}
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if not
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echo !$ngroup does not exist
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case h
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cat /tmp/h
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case help
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printhelp
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case k
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k $group
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case k' '*
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k `{nshift $cmd | sed 's/\./\//g'}
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case l
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post=$posts($#posts)
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printp $post
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case p
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printp $post
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case p' '*
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post=`{nshift $cmd}
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printp $post
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case P
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printpp $post
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case P' '*
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post=`{nshift $cmd}
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printpp $post
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case q
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exit
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case r
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if(test -f $mnt/$group/$post/header){
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subject='Re: '^`{grep -e '^Subject: ' $mnt/$group/$post/header | sed 's/^Subject: //g'}
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enterpost
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}
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if not
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echo !message missing
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case y
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posts=`{getposts}
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geth $posts >/tmp/h
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echo $#posts messages
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case '"'
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printp $post | sed 1d | sed 's/^/> /g' | sed 's/^> >/>>/g'
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case '||'*
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cmd=`{echo $"cmd | sed 's/^\|\|//g'}
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cat $mnt/$group/$post/article | eval $cmd
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case '|'*
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cmd=`{echo $"cmd | sed 's/^\|//g'}
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cat $mnt/$group/$post/body | eval $cmd
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case '?'
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echo mnt: $mnt
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echo group: $group
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echo maxposts: $maxposts
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echo posts: $posts
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echo post: $post
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case n *
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if(~ $post $posts(1) && ~ $#go 0){
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go=1
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printp $post
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}
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if not if(! ~ $post $posts($#posts)){
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go=1
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post=`{echo $post^+1 | bc}
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if(test $post -gt $posts($#posts))
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post=$posts($#posts)
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printp $post
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}
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}
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}
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132
sys/man/1/newt
Normal file
132
sys/man/1/newt
Normal file
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@ -0,0 +1,132 @@
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.TH NEWT 1
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.SH NAME
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newt \- network news transport protocol (NNTP) client
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.SH SYNOPSIS
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.B newt
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[
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.B -f
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.I newsgroup
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] [
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.B -m
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.I mountpoint
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] [
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.B -p
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.I maxposts
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]
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.SH DESCRIPTION
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.I Newt
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provides an interactive, text-based interface to NNTP
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articles served by
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.IR nntpfs (4) .
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.PP
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There are a number of options:
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.TP
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.B -f
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Load the specified newsgroup. Default is
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.B alt.test.
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.TP
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.B -m
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Directory where
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.I nntpfs
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is mounted. Default is
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.B /mnt/news.
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.TP
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.B -p
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Number of posts to display, up to and including the most recent post.
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.PP
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.I Newt
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starts by reading the list of messages in the
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.I newsgroup,
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printing out the number of messages, and then prompting for commands
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from standard input. The prompt itself presents the name of the group
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and the message number in the form of a file system path relative to the
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.I mountpoint.
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.PP
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The commands are:
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.PP
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.TP
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.I number
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Print message
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.I number.
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.TP
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.B b
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Print the previous message.
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.TP
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.B e
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Enter a new message, honoring the environment variable
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.I editor.
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Default is
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.IR hold (1) .
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.TP
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.B f
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Jump to the first message in the group.
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.TP
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.BI g " newsgroup
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Change to the specified
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.I newsgroup.
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The name of a group may be provided in dotted
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(\fIalt.test\fR) or path (\fIalt/test\fR) format.
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.TP
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.B h
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Print the disposition, date, sender and subject line
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of all messages in the group. These lines are suitable
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for selecting and sending to the prompt, in order to
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print messages either singly or in aggregate.
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.TP
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.B help
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Print a summary of the available commands.
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.TP
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.BI k " [newsgroup]
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Without an argument,
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.I k
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walks the directories under the current group
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and prints commands suitable for changing to each
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available sub-group. When provided with an argument,
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it instead walks the directories under the group specified
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by the argument.
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.TP
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.B l
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Jump to the last message in the group.
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.TP
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.B n, or enter key
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Print the next message.
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.TP
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.B p
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Print the current message with minimal headers.
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.TP
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.B P
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Print the raw message with full headers.
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.TP
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.B q
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Quit.
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.TP
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.B r
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Reply to the current message.
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.TP
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.B y
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Synchronize message list with the server.
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.TP
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.BI | command
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Run the
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.I command
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with the message body as standard input.
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.TP
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.BI || command
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Run the
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.I command
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with the whole message as standard input.
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.TP
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\fB"\fP
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Print the current message in quoted form, suitable for reply.
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.SH SOURCE
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.B /rc/bin/newt
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.SH "SEE ALSO"
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.IR nntpfs (4)
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.SH BUGS
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The list of available newsgroups offered by a given server
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may run to many megabytes in size. This complicates
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walking the list over a slow Internet connection, and renders
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searching all but infeasible.
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.SH HISTORY
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.I Newt
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first appeared in 9front (April, 2014).
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