mirror of https://github.com/odrling/Aegisub
413 lines
11 KiB
Perl
413 lines
11 KiB
Perl
#!/usr/bin/perl
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########################
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#
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# aegisub_convert_docs.pl - downloads and converts the Aegisub documentation wiki to static HTML.
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#
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# Usage: aegisub_convert_docs.pl
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# Will write the entire wiki to the current directory.
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#
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# Warning: ugly hacking inside.
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#
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#########
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#
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# No copyright, no license.
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#
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########################
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# includes
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use warnings;
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use strict;
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use utf8;
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use LWP;
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use URI;
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# use CSS; # <--- fucking useless
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use HTML::LinkExtor;
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use File::Path;
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# variables
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my $base_dir = '.';
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my $host = 'http://aegisub.cellosoft.com';
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my $docs_base_url = 'http://aegisub.cellosoft.com/docs/';
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my $agent = LWP::UserAgent->new();
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my @process_pages = ($docs_base_url . 'Main_Page'); # start at the main page
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my %pages = ($base_dir . '/Main_Page.html' => $docs_base_url . "Main_Page");
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my %accepted_types = (
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'image/png' => '.png',
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'image/jpeg' => '.jpg',
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'image/gif' => '.gif',
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'text/html' => '.html',
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'text/css' => '.css',
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'text/javascript' => '.js',
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'text/plain' => '.txt',
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);
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my $timestamp = time();
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my ($requests, $writes);
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# make sure we have somewhere to write to
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mkdir($base_dir) or die("Couldn't create directory ", $base_dir, ": $!")
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unless ( -e $base_dir and -d $base_dir );
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chdir($base_dir) or die("Couldn't change directory to ", $base_dir, ": $!");
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print("Starting downloading and conversion of documentation wiki to ", $base_dir, ".\n",
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"This will probably take a while.\n");
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GETLOOP:
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while ( @process_pages ) {
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my $current_page = shift(@process_pages);
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# initialize object and download the page
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my $page_object = $agent->get($current_page);
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print("Requesting ${current_page}...\n");
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# warn and skip if we couldn't get it
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unless ( $page_object->is_success() ) {
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warn("Couldn't get ", $current_page, ": ", $page_object->status_line(), ", skipping\n");
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next(GETLOOP);
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}
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my $content_type = $page_object->content_type();
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# skip if we don't know what it is
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unless ( exists($accepted_types{$content_type}) ) {
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warn("I don't know what to do with ", $content_type, ", skipping\n");
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next(GETLOOP);
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}
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# monstrously ugly hack to handle rewriting of .css filenames
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my $name;
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if ( $current_page =~ m!index\.php\?title=MediaWiki\:.+?\.css!i ) {
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$name = convert_css_link($current_page);
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} else {
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$name = convert_link($current_page);
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}
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# if it's html, parse it, grab new links
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# add them to @process_pages if they're not already in there
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# then write the modified html to disk
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if ( $content_type eq 'text/html' ) {
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my ($filename, $content, @newpages) = parse_and_fix_html($current_page, $page_object->base(), $page_object->decoded_content());
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# skip this page if the parser decided it was a page we don't want
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next(GETLOOP) unless ($content);
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write_to_disk($filename, $content_type, $content);
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foreach my $url (@newpages) {
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my $newname = convert_link($url);
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# check if we already added that page to our todo-list
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if ( exists($pages{$newname}) ) {
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next(); # we did, do nothing
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}
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else {
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# new page, add it to the list of things to process
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push(@process_pages, $url);
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$pages{$newname} = $url;
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}
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}
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}
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# if it's CSS we need the @import'ed links
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elsif ( $content_type eq 'text/css' ) {
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my @newpages = parse_css($current_page, $page_object->base(), $page_object->decoded_content());
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write_to_disk($name, $content_type, $page_object->decoded_content());
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foreach my $url (@newpages) {
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my $newname = convert_link($url);
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# check if we already added that page to our todo-list
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if ( exists($pages{$newname}) ) {
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next(); # we did, do nothing
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}
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else {
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# new page, add it to the list of things to process
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push(@process_pages, $url);
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$pages{$newname} = $url;
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}
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}
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}
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else {
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write_to_disk($name, $content_type, $page_object->decoded_content());
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}
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}
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continue {
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$requests++;
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}
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print("Done.\nMade $requests requests and wrote $writes files in ",
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time()-$timestamp, " seconds.\n");
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exit(0);
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##########################################
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# parse out pages this page links to
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# modify it
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# return filename of the page, modified html and list of links
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sub parse_and_fix_html {
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#get arguments
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my ($url, $base, $content) = @_;
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my (@links, @links_to_modify); # list of links to return later
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# parse HTML
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my $html = HTML::LinkExtor->new();
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# $html->utf8_mode(1); # not needed
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$html->parse($content);
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$html->eof();
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# loop over the list of links
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# all real work is done here
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LINKLIST:
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foreach my $tag ( $html->links() ) {
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my ($tagname, %attrs) = @{$tag};
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my $quoted = quotemeta($docs_base_url);
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# does the link interest us?
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if ( ($tagname eq 'a') and exists($attrs{'href'}) ) {
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my $href = quotemeta($attrs{'href'}); # quotemeta?
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$href =~ s!\&!\&\;!g; # quotemeta kills & things for some reason
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# skip and kill special or "edit" links
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if ( $attrs{'href'} =~ m!docs/index\.php\?!i ) {
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$content =~ s!<a href=\"${href}\".*?>(.*?)</a>!$1!gi;
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next(LINKLIST);
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}
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# skip and kill image/special links
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if ( $attrs{'href'} =~ m!(Special\:|Image\:|Talk\:)!i ) {
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$content =~ s!<a.*?href\=\"${href}\".*?>(.*?)</a>!$1!gi;
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next(LINKLIST);
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}
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# change somepage#anchor links so they point to the right document,
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# but don't return them for further processing
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# BUG: if a page is ONLY referred to by this type of link, it won't get downloaded!
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# (highly unlikely)
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if ( $attrs{'href'} =~ m!.+\#(.*?)$! ) {
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push(@links_to_modify, $attrs{'href'});
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next(LINKLIST);
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}
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# does it go within aegisub.cellosoft.com?
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if ( $attrs{'href'} =~ m!^$quoted!i or (substr($attrs{'href'},0,1) eq '/') ) {
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push(@links_to_modify, $attrs{'href'});
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}
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# is not relative and goes somewhere else than aegisub.cellosoft.com
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# so we're not interested in it (#anchor links are not touched either)
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else { next(LINKLIST); }
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push(@links, URI->new_abs($attrs{'href'}, $base));
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}
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elsif ( ($tagname eq 'link') and exists($attrs{'href'}) ) {
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if ( $attrs{'href'} =~ m!^$quoted!i or (substr($attrs{'href'},0,1) eq '/') ) {
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push(@links_to_modify, $attrs{'href'});
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}
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else { next(LINKLIST); }
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push(@links, URI->new_abs($attrs{'href'}, $base));
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}
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elsif ( ($tagname eq 'script') and exists($attrs{'src'}) ) {
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my $src = quotemeta($attrs{'src'});
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# bogus link, skip it
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if ( $attrs{'src'} =~ m!index\.php\?title=-!i ) {
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next(LINKLIST);
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}
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if ( $attrs{'src'} =~ m!^$quoted!i or (substr($attrs{'src'},0,1) eq '/') ) {
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push(@links_to_modify, $attrs{'src'});
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}
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else { next(LINKLIST); }
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push(@links, URI->new_abs($attrs{'src'}, $base));
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}
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elsif ( ($tagname eq 'img') and exists($attrs{'src'}) ) {
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if ( $attrs{'src'} =~ m!^$quoted!i or (substr($attrs{'src'},0,1) eq '/') ) {
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push(@links_to_modify, $attrs{'src'});
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}
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else { next(LINKLIST); }
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push(@links, URI->new_abs($attrs{'src'}, $base));
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}
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# else do nothing
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}
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# kill the topbar
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$content =~ s!<div id=\"topbar\".*?<\!-- end topbar -->!!s;
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# kill the article/discussion/history thing
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$content =~ s!<div id=\"p-cactions\".*?</div>!!s;
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# kill the "toolbox" at the bottom left
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$content =~ s!<div class=\"portlet\" id=\"p-tb\".*?(<\!-- end of the left)!$1!s;
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# handle the @import links to get the css right
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while ( $content =~ m!\@import \"(.+?)\";!mg ) {
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my $importlink = $1;
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if ( convert_css_link($importlink) ) {
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push(@links, URI->new_abs($importlink, $base));
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push(@links_to_modify, '@' . $importlink);
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}
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}
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# rewrite all the links
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foreach my $link (@links_to_modify) {
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my $converted = convert_link($link);
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if ( substr($link,0,1) eq '@' ) {
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substr($link,0,1) = '';
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}
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$link = quotemeta($link);
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$content =~ s!\"$link\"!\"$converted\"!g;
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}
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my $filename = convert_link($url);
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return($filename, $content, @links);
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}
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sub write_to_disk {
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my ($path, $type, $thing) = @_;
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# return() if ( -e $path ); # this was a dumb idea
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$path =~ m!(.*)/(.*?)\.\w{2,4}$!;
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my ($tree, $filename) = ($1, $2);
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mkpath($tree) unless ( -e $tree and -d $tree );
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if ( $type =~ m!^text! ) {
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write_text($path, $thing);
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}
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else {
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write_bin($path, $thing);
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}
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print("Writing $filename to ${path}...\n");
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$writes++;
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}
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sub write_text {
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my ($outfile, $thing) = @_;
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open(OUT, ">:utf8", $outfile) or die("Couldn't open $outfile for writing: $!");
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print OUT $thing;
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close(OUT) or die("Couldn't close ${outfile}: $!");
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return();
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}
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sub write_bin {
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my ($outfile, $thing) = @_;
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open(OUT, ">", $outfile) or die("Couldn't open $outfile for writing: $!");
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binmode(OUT);
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print OUT $thing;
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close(OUT) or die("Couldn't close ${outfile}: $!");
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return();
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}
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# converts links to relative starting with $base_dir
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sub convert_link {
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my $link = shift(@_);
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# dereference if necessary
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if ( ref($link) ) {
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$link = $$link;
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}
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# SPECIAL CASE: it's one of those fukken @import links, do something else with it
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if ( substr($link,0,1) eq '@' ) {
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substr($link,0,1) = '';
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return(convert_css_link($link));
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}
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# is it relative?
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if ( substr($link,0,1) eq '/' ) {
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$link =~ s!^/docs/!$base_dir/!i;
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}
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else {
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my $quoted = quotemeta($host);
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$link =~ s!${quoted}/docs/!$base_dir/!i;
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}
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# if it doesn't have a filename extension it's probably a page,
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# and then we need to tack on .html to the end (fuck internet explorer)
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# oh and jfs's .lua pages aren't really lua scripts either
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my $bdirquoted = quotemeta($base_dir);
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if ( $link =~ m/^(${bdirquoted}.+?)\#.*$/ ) {
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my $pagename = $1;
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if ( $pagename !~ m!\.html$! or (substr($pagename,-4) eq '.lua') ) {
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$link =~ s!^${pagename}!${pagename}.html!;
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}
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} elsif ( $link !~ m!/.*?\.\w{2,4}$! or (substr($link,-4) eq '.lua') ) {
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$link = $link . '.html';
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}
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$link =~ s!\:!_!g; # replace : with _
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$link =~ s!\?!_!g; # replace ? with _
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return($link);
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}
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# HAX
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sub convert_css_link {
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my $link = shift(@_);
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# does it seem like css?
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if ( $link =~ m!MediaWiki:(.+?)\.css!i ) {
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return(convert_link('/docs/' . $1 . '.css'));
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}
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# has a sensible name already, don't fuck with it
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elsif ( $link =~ m!/(.+?)\.css$!i ) {
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return(convert_link($link));
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}
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# doesn't seem like anything useful
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else { return(undef); }
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}
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# argh
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sub parse_css {
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my ($url, $base, $content) = @_;
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my @links;
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# my $quoted = quotemeta($docs_base_url); # <--- not used
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# find url("stuff") blocks
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LINKLIST:
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while ( $content =~ m!url\((\")?(.+?)(\")?\)!mgi ) {
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my $text = $2;
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# skip it if it's nonrelative and goes somewhere else than aegisub.cellosoft.com
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if ( $text =~ m!^http!i ) {
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# actually fuck this there shouldn't be any nonrelative links in there anyway
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next(LINKLIST)
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#unless ( $text =~ m!^${quoted}!i );
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}
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push(@links, URI->new_abs($text, $base));
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}
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my $filename = convert_link($url);
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return($filename, @links);
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} |