1 files changed, 148 insertions, 0 deletions

diff --git a/src/usr.bin/nc/scripts/web b/src/usr.bin/nc/scripts/web
new file mode 100644
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+++ b/src/usr.bin/nc/scripts/web
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+#! /bin/sh
+## The web sucks.  It is a mighty dismal kludge built out of a thousand
+## tiny dismal kludges all band-aided together, and now these bottom-line
+## clueless pinheads who never heard of "TCP handshake" want to run
+## *commerce* over the damn thing.  Ye godz.  Welcome to TV of the next
+## century -- six million channels of worthless shit to choose from, and
+## about as much security as today's cable industry!
+##
+## Having grown mightily tired of pain in the ass browsers, I decided
+## to build the minimalist client.  It doesn't handle POST, just GETs, but
+## the majority of cgi forms handlers apparently ignore the method anyway.
+## A distinct advantage is that it *doesn't* pass on any other information
+## to the server, like Referer: or info about your local machine such as
+## Netscum tries to!
+##
+## Since the first version, this has become the *almost*-minimalist client,
+## but it saves a lot of typing now.  And with netcat as its backend, it's
+## totally the balls.  Don't have netcat?  Get it here in /src/hacks!
+## _H* 950824, updated 951009 et seq.
+##
+## args: hostname [port].  You feed it the filename-parts of URLs.
+## In the loop, HOST, PORT, and SAVE do the right things; a null line
+## gets the previous spec again [useful for initial timeouts]; EOF to exit.
+## Relative URLs behave like a "cd" to wherever the last slash appears, or
+## just use the last component with the saved preceding "directory" part.
+## "\" clears the "filename" part and asks for just the "directory", and
+## ".." goes up one "directory" level while retaining the "filename" part.
+## Play around; you'll get used to it.
+
+if test "$1" = "" ; then
+  echo Needs hostname arg.
+  exit 1
+fi
+umask 022
+
+# optional PATH fixup
+# PATH=${HOME}:${PATH} ; export PATH
+
+test "${PAGER}" || PAGER=more
+BACKEND="nc -v -w 15"
+TMPAGE=/tmp/web$$
+host="$1"
+port="80"
+if test "$2" != "" ; then
+  port="$2"
+fi
+
+spec="/"
+specD="/"
+specF=''
+saving=''
+
+# be vaguely smart about temp file usage.  Use your own homedir if you're
+# paranoid about someone symlink-racing your shell script, jeez.
+rm -f ${TMPAGE}
+test -f ${TMPAGE} && echo "Can't use ${TMPAGE}" && exit 1
+
+# get loopy.  Yes, I know "echo -n" aint portable.  Everything echoed would
+# need "\c" tacked onto the end in an SV universe, which you can fix yourself.
+while echo -n "${specD}${specF} " && read spec ; do
+  case $spec in
+  HOST)
+    echo -n 'New host: '
+    read host
+    continue
+  ;;
+  PORT)
+    echo -n 'New port: '
+    read port
+    continue
+  ;;
+  SAVE)
+    echo -n 'Save file: '
+    read saving
+# if we've already got a page, save it
+    test "${saving}" && test -f ${TMPAGE} &&
+      echo "=== ${host}:${specD}${specF} ===" >> $saving &&
+      cat ${TMPAGE} >> $saving && echo '' >> $saving
+    continue
+  ;;
+# changing the logic a bit here.  Keep a state-concept of "current dir"
+# and "current file".  Dir is /foo/bar/ ; file is "baz" or null.
+# leading slash: create whole new state.
+  /*)
+    specF=`echo "${spec}" | sed 's|.*/||'`
+    specD=`echo "${spec}" | sed 's|\(.*/\).*|\1|'`
+    spec="${specD}${specF}"
+  ;;
+# embedded slash: adding to the path.  "file" part can be blank, too
+  */*)
+    specF=`echo "${spec}" | sed 's|.*/||'`
+    specD=`echo "${specD}${spec}" | sed 's|\(.*/\).*|\1|'`
+  ;;
+# dotdot: jump "up" one level and just reprompt [confirms what it did...]
+  ..)
+    specD=`echo "${specD}" | sed 's|\(.*/\)..*/|\1|'`
+    continue
+  ;;
+# blank line: do nothing, which will re-get the current one
+  '')
+  ;;
+# hack-quoted blank line: "\" means just zero out "file" part
+  '\')
+    specF=''
+  ;;
+# sigh
+  '?')
+    echo Help yourself.  Read the script fer krissake.
+    continue
+  ;;
+# anything else is taken as a "file" part
+  *)
+    specF=${spec}
+  ;;
+  esac
+
+# now put it together and stuff it down a connection.  Some lame non-unix
+# http servers assume they'll never get simple-query format, and wait till
+# an extra newline arrives.  If you're up against one of these, change
+# below to (echo GET "$spec" ; echo '') | $BACKEND ...
+  spec="${specD}${specF}"
+    echo GET "${spec}" | $BACKEND $host $port > ${TMPAGE}
+  ${PAGER} ${TMPAGE}
+
+# save in a format that still shows the URLs we hit after a de-html run
+  if test "${saving}" ; then
+    echo "=== ${host}:${spec} ===" >> $saving
+    cat ${TMPAGE} >> $saving
+    echo '' >> $saving
+  fi
+done
+rm -f ${TMPAGE}
+exit 0
+
+#######
+# Encoding notes, finally from RFC 1738:
+# %XX -- hex-encode of special chars
+# allowed alphas in a URL: $_-.+!*'(),
+# relative names *not* described, but obviously used all over the place
+# transport://user:pass@host:port/path/name?query-string
+# wais: port 210, //host:port/database?search or /database/type/file?
+# cgi-bin/script?arg1=foo&arg2=bar&...  scripts have to parse xxx&yyy&zzz
+# ISMAP imagemap stuff: /bin/foobar.map?xxx,yyy -- have to guess at coords!
+# local access-ctl files: ncsa: .htaccess ; cern: .www_acl
+#######
+# SEARCH ENGINES: fortunately, all are GET forms or at least work that way...
+# multi-word args for most cases: foo+bar
+# See 'websearch' for concise results of this research...