A lot of updates.
This commit is contained in:
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451
connex.pl
451
connex.pl
@ -1,451 +0,0 @@
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#!/usr/bin/perl -w
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#connex.pl Nightfall Express (nex://) browser
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#TODO: Some branding (status popup on load?, Connex menu item?), About dialog
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#TODO: Help dialog
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use strict;
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use warnings;
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use strict;
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use Curses::UI;
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use Net::Telnet;
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use URI::Split qw(uri_split uri_join);
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use URI ();
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my $HOST_DEFAULT = "nightfall.city";
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my $PATHSPEC_DEFAULT = '';
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my $PORT_DEFAULT = 1900;
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my $SCHEME_NEX = "nex";
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my $host = "nightfall.city";
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my $port = "1900";
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my $pathspec = "";
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my $docname; # = "";
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my $doctype = "txt";
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my $dot_ext = ".";
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my $HOME_URL = uri_join($SCHEME_NEX,$HOST_DEFAULT);
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#if argument entered, it should be a nex url:
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my $full_url= $ARGV[0];
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if (defined $full_url){
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my $uri=URI->new($full_url, $SCHEME_NEX);
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if ($uri->scheme ne $SCHEME_NEX){
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die "need a $SCHEME_NEX url, or start without supplying URL argument.\n";
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}
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$full_url= $uri->as_string;
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}else{
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$full_url = $HOME_URL;
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}
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my @history;
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my @page_links;
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my $statusbar;
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my $navwindow;
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my $win1;
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my $cui = new Curses::UI( -color_support => 1 );
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my $connect = new Net::Telnet (Timeout => 10,
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Errmode => 'return');
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my @menu = (
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{ -label => 'File',
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-submenu => [
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{ -label => 'Choose Link >', -value => \&goto_link_dialog },
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{ -label => 'Back ^B/<', -value => \&goto_back },
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{ -label => 'Go to Link ^G', -value => \&navigate_link_dialog },
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{ -label => 'Page Links ^P', -value => \&page_links_dialog },
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{ -label => 'History ^Y', -value => \&history_status_dialog },
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{ -label => 'Exit ^Q', -value => \&exit_dialog }
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]
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},
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{ -label => 'Help',
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-submenu => [
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{ -label => 'Help ^H', -value => \&help_dialog },
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{ -label => 'About ', -value => \&about_dialog },
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]
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},
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);
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sub exit_dialog()
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{
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my $return = $cui->dialog(
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-title => "Quit Connex?",
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-message => "Are you sure?",
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-buttons => ['yes', 'no'],
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);
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exit(0) if $return;
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}
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sub links_dialog()
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{
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my $return = $cui->dialog(
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-message => page_links_list(),
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-title => "Page Links",
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-buttons => ['ok'],
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);
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}
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sub unsupported_dialog
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{
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my $scheme = shift;
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my $return = $cui->dialog(
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-message => "$scheme protocol not supported.",
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-title => "Bad Navigation",
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-buttons => ['ok'],
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);
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}
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sub navigate_link_dialog()
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{
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my $return = $cui->question(-question => "This is [$full_url]. Enter destination link:",
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-answer => $full_url,
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);
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#if not user canceled then navigate
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if($return){
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navigate($return);
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update_status_bar();
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}
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}
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sub goto_link_dialog()
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{
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my $return = $cui->question(-question => "Enter link #:",
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);
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#if not canceled, or too big or too small, goto link
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if($return){
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my $linkcount = scalar @page_links;
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if($return <= $linkcount && $return >0){
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goto_link($return);
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update_status_bar();
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}else{
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#$browser->focus();
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my $return1 = $cui->status("there is no link # " . $return);
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}
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#do nothing on cancel
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}
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}
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sub goto_back()
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{
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my $fetched = fetch_history();
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#if($fetched) {
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$full_url =$fetched;
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load($full_url,0); #don't move back to top
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update_status_bar();
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history_status_dialog();
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#}
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}
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sub goto_link{
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my $linknum = shift;
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my $linkcount = scalar @page_links;
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#my $element=$linknum -1; #offset for array element
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#if ($element <= $#page_links){ #such a perlism, this is highest INDEX of array
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if ($linknum <= $linkcount){ #such a perlism, this is highest INDEX of array
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navigate($page_links[$linknum-1]); #offset from count to index
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}else{
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#my $browser = $win1->getobj("browser");
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#$browser->focus();
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my $return = $cui->status("no link # " . $linknum);
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}
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}
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sub navigate{
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my $link = shift;
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add_history($full_url); #add last link to history before going forward!
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$full_url = $link;
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load($full_url, 1); #new URL go to top of page
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}
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sub update_status_bar
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{
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my $browser = $win1->getobj("browser");
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my $statusbar = $win1->getobj("status");
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#$full_url = construct_valid_url($SCHEME_NEX, $host, $pathspec, $docname);
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$statusbar->text("$full_url" . " | Press '>' key to enter link #. ctl-x for Menu. '<' to go back.");
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$statusbar->draw();
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$browser->focus();
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}
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sub add_history
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{
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my $link = shift;
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push(@history, $link);
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history_status_dialog();
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return;
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}
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sub fetch_history
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{
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my $latest;
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if(@history) {
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$latest = pop(@history);
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return $latest;
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}else{
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return($HOME_URL);
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}
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}
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sub history_status_dialog
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{
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if(@history){
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my $browser = $win1->getobj("browser");
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$browser->focus();
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my $history_list = join("\n", @history);
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my $return = $cui->status("history:\n$history_list");
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}
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}
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sub page_links_dialog
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{
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if(@page_links){
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my $browser = $win1->getobj("browser");
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$browser->focus();
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#my $link_list = join("\n", @page_links);
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my $link_list = page_links_list();
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my $return = $cui->status("links on this page:\n$link_list");
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}
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}
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sub page_links_list
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{
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if(@page_links){
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my $browser = $win1->getobj("browser");
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$browser->focus();
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#my $link_list = join("\n", @page_links);
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my $link_list="";
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my $link;
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my $count=0;
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foreach $link (@page_links){
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$count+=1;
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$link_list = $link_list . "[$count] $link\n";
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}
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return $link_list;
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}
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}
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sub about_dialog
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{
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my $browser = $win1->getobj("browser");
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$browser->focus();
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my $return = $cui->status("Connex browser\n by gorf\@rawtext.club\n 2024");
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}
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sub help_dialog
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{
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my $browser = $win1->getobj("browser");
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$browser->focus();
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my $message = <<'END_MESSAGE';
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Navigation:
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Press '>' key to select a '[>#]link by #
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Press '<' key to go back to previous page
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Program Features:
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Press ctl-x for menu
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END_MESSAGE
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my $return = $cui->dialog(
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-message => $message,
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-title => "Connex Help",
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-buttons => ['ok'],
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);
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}
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my $menu = $cui->add(
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'menu','Menubar',
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-menu => \@menu,
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-fg => "blue",
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);
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$win1 = $cui->add(
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'win1', 'Window',
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-title => "Connex, a Nightfall Express (nex://) browser",
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-border => 1,
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-y => 1,
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-bfg => 'red',
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-vscrollbar => 'right',
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);
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my $texteditor = $win1->add("browser", "TextViewer",
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-text => "Start Page",
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-border => 1,
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-padtop => 0,
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-padbottom => 3,
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-showlines => 0,
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-sbborder => 0,
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-vscrollbar => 1,
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-hscrollbar => 1,
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-showhardreturns => 0,
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-wrapping => 0, # wrapping slows down the editor :-(
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);
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$statusbar = $win1->add("status", "TextViewer",
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-border => 1,
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-bfg => 'red',
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-y => -1,
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-height => 1,
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-width => -1,
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-reverse => 1,
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-paddingspaces => 1,
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-text => "$full_url | Press '>' key to enter link #; ctl-x for menu; '<' to go back.",
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);
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#key bindings, should match menu items
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$cui->set_binding(sub {$menu->focus()}, "\cX");
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$cui->set_binding( \&exit_dialog , "\cQ");
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$cui->set_binding( \&navigate_link_dialog , "\cG");
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$cui->set_binding( \&goto_back , "\cB");
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$cui->set_binding( \&goto_back , "<");
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$cui->set_binding( \&goto_link_dialog , ">");
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$cui->set_binding( \&page_links_dialog , "\cP");
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$cui->set_binding( \&history_status_dialog , "\cY");
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$cui->set_binding( \&help_dialog , "\cH");
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$cui->set_binding(sub {
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my $cui = shift;
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$cui->layout;
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$cui->draw;
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}, "\cL");
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# There is no need for the editor widget to loose focus, so
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# the "loose-focus" binding is disabled here. This also enables the
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# use of the "TAB" key in the editor, which is nice to have.
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#$texteditor->clear_binding('loose-focus');
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#start up
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$texteditor->focus();
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navigate($full_url);
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$cui->mainloop();
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#make nex:// urls from parts, relative urls
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sub construct_valid_url #scheme, host, pathspec, docname
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{
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my $scheme = shift;
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my $host = shift;
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my $pathspec = shift;
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my $docname = shift;
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if (defined($docname)){
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$pathspec= $pathspec . '/' . $docname; #this is just local pathspec
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}
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my $url = uri_join($scheme, $host, $pathspec);
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return $url;
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}
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sub is_path_index{
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my $path = shift;
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my $result = 1;
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if ($path !~ /\/$/ && $path =~ /\.[a-zA-Z]*$/){
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$result =0;
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}
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return($result);
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}
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sub add_page_link{
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my $linkline = shift;
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my $base_url = shift;
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my $uri_object;
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#my $link= $linkline=~ s/^=>[ ]*(.*$)/$1/r;
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local $URI::ABS_ALLOW_RELATIVE_SCHEME = 1;
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local $URI::ABS_REMOTE_LEADING_DOTS = 1;
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$uri_object=URI->new_abs($linkline=~ /^=>[ ]+([^ ]*)/,$base_url);
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push(@page_links, $uri_object->as_string);
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my $count = scalar @page_links; #scalar is size/count of links, but $#page_links is highest INDEX
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return $linkline =~ s/(^=>.*$)/$1 [\>$count\]/r;
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}
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sub load
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{
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my @lines;
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my $ok;
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my $url = shift;
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my $top = shift;
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#my $scheme, $host, $path, $query, $frag;
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my ($scheme, $host, $path, $query, $frag) = uri_split($url);
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#what happens with different scheme?
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if ($scheme eq $SCHEME_NEX){
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$connect->host($host);
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$connect->port($port);
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$ok= $connect->open($host);
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$ok= $connect->print($path);
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@lines =$connect->getlines(ErrMode=> 'return');
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print $connect->eof();
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#handle non-existant request?
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die unless $connect->eof();
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$connect->close();
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my $widget= $texteditor;
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#loop through nex response and load into text editor. Identify, mark and store link lines for index pages
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#TODO: store link lines for index pages
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my $page_contents =""; #this is the page contents
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my $currentline;
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my $count=0;
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my $is_index= is_path_index($path);
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undef @page_links; #clear list
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foreach $currentline (@lines){
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if ($currentline =~ m/^=>/){
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if ($is_index){
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$currentline = add_page_link($currentline, $url);
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}
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}
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$page_contents= $page_contents . $currentline;
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}
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$widget->text($page_contents);
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$widget->draw();
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if ($top){
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$widget->pos(0);
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}
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}else{
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#can't load non-nex as of now
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my $browser = $win1->getobj("browser");
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$browser->focus();
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my $return = unsupported_dialog($scheme);
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#pop and trash history
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my $fetched = fetch_history();
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}
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}
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Reference in New Issue
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