#!/usr/local/plan9/bin/rc . ./cgilib.rc cd .. forbidden_uri_chars='[^a-zA-Z0-9_+\-\/\.]' response_format=html fn get_lib_file { if(test -f $sitedir/_werc/lib/$1) echo -n $sitedir/_werc/lib/$1 if not if(! ~ $#masterSite 0 && test -f $sitesdir/$masterSite/_werc/lib/$1) echo -n $sitesdir/$masterSite/_werc/lib/$1 if not if(test -f lib/$1) echo -n lib/$1 } # Don't change var name or trailing ';', dirfilter might be changed from _werc/config! # ls -F style input of the form: $sitedir/path/to/files/ # dirfilter='s/\*$//; s,/+\./+,/,g; s,^\./,,; /\/[._][^\/]/d; /'^$forbidden_uri_chars^'/d; /^\/(robots|sitemap)\.txt$|\/index\.(md|html|txt|tpl)$/d; /_werc\/?$/d; ' dirclean=' s/\.(md|html|txt)$//; ' # To be used from config files fn hide_paths { for(i in $*) dirfilter=$dirfilter^'/^'$i'$/d; ' } # Sidebar fn gensidebar { # Ignore stderr, last path element might be a file that doesn't exist (eg., foo for foo.md) # /./ to deal with p9p's ls failure to follow dir symlinks otherwise ls -F $sitedir/./$req_paths_list >[2]/dev/null \ | sed 's!^'$sitedir'!!; '^$dirfilter^'/\/[^_.\/][^\/]*(\.(md|txt|html)|\/)$/!d; '^$dirclean \ | sort -u | awk -F/ ' function p(x, y, s) { for(i=0; i < x-y; i+=1) print s } { d = "" if(match($0, "/$")) d = "/" sub("/$", "") # Strip trailing / for dirs so NF is consistent p(NF, lNF, "") lNF = NF bname = $NF d path = $0 d gsub("_", " ", bname) if(index(ENVIRON["req_path"] "/", path) == 1) print "

» " bname "" else print "

" } END { p(lNF, 0, "") }' } # Handlers fn md_handler { cat $* | $formatter } fn tpl_handler { template $1 } fn html_handler { # body states: 0 = no found, 2 = after , 1 = after , -1 = after awk 'gsub(".*<[Bb][Oo][Dd][Yy][^>]*>", "") > 0 {body=2} gsub("]*>.*", "") > 0 {print; body=body-1} body==2 {print} body==0 {buf=buf "\n" $0} END {if(body<=0) {print buf}}' < $1 } fn txt_handler { # Note: Words are not broken, even if they are way beyond 82 chars long echo '

' `{ sed 's//\>/g' < $1 | fmt -l 82 -j } '

' } fn dir_listing_handler { d=`{basename -d $1} echo $d|sed 's,.*//,,g; s,/$,,; s,/, / ,g; s,.*,

&

' } fn setup_handlers { if(test -f $local_path.md) handler_body_main=(md_handler $local_path.md) if not if(test -f $local_path.tpl) handler_body_main=(tpl_handler $local_path.tpl) if not if(test -f $local_path.html) handler_body_main=(html_handler $local_path.html) # Global tpl (eg sitemap.tpl), should take precedence over txt handler! if not if(test -f lib^$req_path^.tpl) handler_body_main=(tpl_handler lib^$req_path^.tpl) if not if(test -f $local_path.txt) handler_body_main=(txt_handler $local_path.txt) # Apps if(! ~ $#enabled_apps 0) init_apps if(! ~ $#handler_body_main 0) { } # Dir listing if not if(~ $local_path */index) handler_body_main=(dir_listing_handler $local_path) # Explicit .html urls, the web server might handle this first! if not if(~ $local_path *.html && test -f $local_path) perm_redirect `{ echo $req_path|sed 's/.html$//' } # Fallback static file handler if not if(test -f $local_path) static_file $local_path # File not found if not { handler_body_main=(tpl_handler `{get_lib_file 404.tpl}) dprint 'NOT FOUND: '$SERVER_NAME^$"REQUEST_URI^' - '^$"HTTP_REFERER^' - '^$"HTTP_USER_AGENT echo 'Status: 404 Not Found' } } fn run_handlers { for(h in $*) run_handler $$h } fn run_handler { $*(1) $*(2-) } # Careful, the proper p9p path might not be set until initrc.local is sourced path=(. $PLAN9/bin ./bin/ /bin/ /usr/bin) headers=lib/headers.tpl master_template=default_master.tpl sidebar=sidebar werc_root=`{pwd} for(i in siteTitle siteSubTitle pageTitle extraHeaders) $i = '' # TODO: Per-req variables should move after initrc loading. site=$SERVER_NAME base_url=http://$site/ sitesdir=sites sitedir=$sitesdir/$site current_date_time=`{date} . ./etc/initrc if(test -f etc/initrc.local) . ./etc/initrc.local # Parse request URL # NOTE: $REQUEST_URI is not officially in CGI 1.1, but seems to be de-facto req_path=`{echo -n $REQUEST_URI | sed 's/\?.*//; s/'^$forbidden_uri_chars^'//g; s/\.\.*/./g; 1q'} local_path=$sitedir$req_path ifs='/' { args=`{echo -n $req_path} } # Hack: preload post data so we can access it from templates where cgi's stdin is not accesible if(~ $REQUEST_METHOD POST) { get_post_args login_user } if(! ~ $#args 0) pageTitle=`{ echo $args|sed -e 's/ / - /g' -e 's/_/ /g' } if(~ $req_path */index) perm_redirect `{echo $req_path | sed 's,/index$,/,'} if(~ $local_path */) local_path=$local_path^'index' if not if(test -d $local_path) perm_redirect $req_path^'/' p=() cd $sitedir if(test -f _werc/config) . _werc/config for(i in ('' $args)) { p=($"p^/^$i) req_paths_list=($req_paths_list $p) if(test -d $i) { cd $i if(test -f _werc/config) . _werc/config } } cd $werc_root # Redirections and other preprocessing if(~ $#redirectPermanent 1) { perm_redirect $"redirectPermanent } if not if(~ $#redirectPermanent 2) { from='http://'^$SERVER_NAME^$req_path to=`{echo $from|sed 's@'^$redirectPermanent(1)^'@'^$redirectPermanent(2)^'@'} if(! ~ $to $from) perm_redirect $to } # Set Page title if(~ $pageTitle '') pageTitle=$siteTitle^' '^$siteSubTitle if not pageTitle=$"pageTitle^' | '^$"siteTitle^' '^$"siteSubTitle setup_handlers if(! ~ $#debug 0) dprint ' '$"SERVER_NAME^$"REQUEST_URI' - '$"HTTP_USER_AGENT' - '$"REQUEST_METHOD' - '$"handler # Template/body selection master_template=`{get_lib_file $master_template} if(~ $response_format html) { template $headers $master_template | awk_buffer echo '' } if not if(~ $response_format raw) template < $master_template