From b1736dfd44d664c3f43abb8f7bc554744c073d82 Mon Sep 17 00:00:00 2001 From: Claudio Sacerdoti Coen Date: Thu, 28 Jun 2001 11:48:48 +0000 Subject: [PATCH] CIC files are now processed one by one once given the list of their URIs (that will be soon provided by a new getter method) --- helm/metadata/create/Makefile | 63 +--- helm/metadata/create/mywget.pl | 645 +-------------------------------- 2 files changed, 4 insertions(+), 704 deletions(-) diff --git a/helm/metadata/create/Makefile b/helm/metadata/create/Makefile index ac242589d..aebe7233e 100644 --- a/helm/metadata/create/Makefile +++ b/helm/metadata/create/Makefile @@ -1,67 +1,8 @@ -marcello_THEORIES_OK = \ - cic:/Coq/Arith/ \ - cic:/Coq/Bool/ \ - cic:/Coq/Init/ \ -\ - cic:/Coq/IntMap/Adalloc/ \ - cic:/Coq/IntMap/Addec/ \ - cic:/Coq/IntMap/Addr/ \ - cic:/Coq/IntMap/Adist/ \ - cic:/Coq/IntMap/Fset/ \ - cic:/Coq/IntMap/Lsort/ \ - cic:/Coq/IntMap/Map/ \ - cic:/Coq/IntMap/Mapaxioms/ \ - cic:/Coq/IntMap/Mapc/ \ - cic:/Coq/IntMap/Mapcanon/ \ - cic:/Coq/IntMap/Mapcard/ \ - cic:/Coq/IntMap/Mapfold/ \ - cic:/Coq/IntMap/Mapiter/ \ - cic:/Coq/IntMap/Maplists/ \ - cic:/Coq/IntMap/Mapsubset/ \ -\ - cic:/Coq/Lists/ \ - cic:/Coq/Logic/ \ -\ - cic:/Coq/Reals/R_Ifp/ \ - cic:/Coq/Reals/Raxioms/ \ - cic:/Coq/Reals/Rbase/ \ - cic:/Coq/Reals/Rbasic_fun/ \ - cic:/Coq/Reals/Rdefinitions/ \ - cic:/Coq/Reals/Rderiv/ \ - cic:/Coq/Reals/Rfunctions/ \ - cic:/Coq/Reals/Rlimit/ \ - cic:/Coq/Reals/Rseries/ \ - cic:/Coq/Reals/Rsyntax/ \ - cic:/Coq/Reals/Rtrigo_fun/ \ - cic:/Coq/Reals/TypeSyntax/ \ -\ - cic:/Coq/Relations/ \ - cic:/Coq/Sets/ \ - cic:/Coq/Wellfounded/ \ -\ - cic:/Coq/ZArith/Wf_Z/ \ - cic:/Coq/ZArith/ZArith_dec/ \ - cic:/Coq/ZArith/Zmisc/ \ - cic:/Coq/ZArith/Zsyntax/ \ - cic:/Coq/ZArith/auxiliary/ \ - cic:/Coq/ZArith/fast_integer/ \ - cic:/Coq/ZArith/zarith_aux/ \ -\ - cic:/Coq/correctness/ \ - cic:/Coq/field/ \ - cic:/Coq/fourier/ \ -\ - cic:/Coq/omega/Zcomplements/ \ - cic:/Coq/omega/Zlogarithm/ \ - cic:/Coq/omega/Zpower/ \ -\ - cic:/Coq/ring/ \ - marcello: - time ./mywget.pl $($@_THEORIES_OK) + time for i in `cat pluto` ; do ./mywget.pl $$i ; done rdf: - ./split.pl output/* + find output -type f -exec ./split.pl {} \; find rdf -type f -exec ./fix_rdf.pl {} \; (cd rdf ; ../mkindex.sh) diff --git a/helm/metadata/create/mywget.pl b/helm/metadata/create/mywget.pl index 5b3c8d611..2ffcde643 100755 --- a/helm/metadata/create/mywget.pl +++ b/helm/metadata/create/mywget.pl @@ -40,8 +40,9 @@ foreach $i (@ARGV) { # my $url = "http://phd.cs.unibo.it:8080/helm/servlet/uwobo/apply?keys=pfi%2Creorder&xmluri=http%3A//phd.cs.unibo.it%3A8081/ls%3Fformat%3Dxml%26baseuri%3D$i¶m.uri=$i¶m.getterURL=http://phd.cs.unibo.it:8081/"; -my $url = "http://dotto.cs.unibo.it:8080/helm/servlet/uwobo/apply?keys=pfi%2Creorder&xmluri=http%3A//dotto.cs.unibo.it%3A8081/ls%3Fformat%3Dxml%26baseuri%3D$i¶m.uri=$i¶m.getterURL=http://dotto.cs.unibo.it:8081/"; +#my $url = "http://dotto.cs.unibo.it:8080/helm/servlet/uwobo/apply?keys=pfi%2Creorder&xmluri=http%3A//dotto.cs.unibo.it%3A8081/ls%3Fformat%3Dxml%26baseuri%3D$i¶m.uri=$i¶m.getterURL=http://dotto.cs.unibo.it:8081/"; +my $url = "http://phd.cs.unibo.it:8080/helm/servlet/uwobo/apply?keys=occ&xmluri=http%3A//phd.cs.unibo.it%3A8081/getxml%3Furi%3D$i¶m.CICURI=$i"; print "Now processing $i...\n"; print "$url\n"; @@ -63,645 +64,3 @@ sub callback2 my ($data) = @_; print FD $data; } - -################# - - -#CSC: mancano i controlli sulle condizioni di errore di molte funzioni -#CSC: ==> non e' robusto -#CSC: altra roba da sistemare segnata con CSC - -my $d = new HTTP::Daemon LocalPort => 8081; -my $myownurl = $d->url; - -# Let's patch the returned URL -$myownurl =~ s/\/$//; # chop the final slash -my $myownport = $myownurl; -$myownport =~ s/http:\/\/(.*):(.*)/$2/; -$myownurl =~ s/http:\/\/(.*):(.*)/$1/; -($myownurl) = gethostbyname($myownurl); -$myownurl = "http://".$myownurl.":".$myownport; - -tie(%map, 'DB_File', $uris_dbm.".db", O_RDWR, 0664); -print "Please contact me at: \n"; -print "helm_dir: $helm_dir\n"; -print "style_dir: $style_dir\n"; -print "dtd_dir: $dtd_dir\n"; -print "urls_of_uris.db: $uris_dbm.db\n"; -print "cache mode: $cachemode\n"; - -$SIG{CHLD} = "IGNORE"; # do not accumulate defunct processes -$SIG{USR1} = \&update; # sent by the child to make the parent update -while (my $c = $d->accept) { - if (fork() == 0) { - while (my $r = $c->get_request) { - #CSC: mancano i controlli di sicurezza - - my $http_method = $r->method; - my $http_path = $r->url->path; - my $http_query = uri_unescape($r->url->query); - my $cgi = new CGI("$http_query"); - my $inputuri = $cgi->param('uri'); - print "\nRequest: ".$r->url."\n\n"; - - print "\nUnescaped query: ".$http_query."\n"; - - if ($http_method eq 'GET' and $http_path eq "/getxml") { - # finds the uri, url and filename - my $cicuri = $inputuri; - my $answerformat = $cgi->param('format'); - my $patch_dtd = $cgi->param('patch_dtd'); - $answerformat = "" if (not defined($answerformat)); - $patch_dtd = "yes" if (not defined($patch_dtd)); - if (($answerformat ne "gz") and ($answerformat ne "normal") - and ($answerformat ne "")) { - die "Wrong output format: $answerformat, must be 'normal' ". - "or 'gz'\n"; - } - if (($patch_dtd ne "yes") and ($patch_dtd ne "no") - and ($patch_dtd ne "")) { - die "Wrong param, patch_dtd must be 'yes' or 'no'\n"; - } - - my $cicfilename = $cicuri; - $cicfilename =~ s/cic:(.*)/$1/; - $cicfilename =~ s/theory:(.*)/$1/; - - my $cicurl = $map{$cicuri}; - if (not defined($cicurl)) { - die "uri \"$cicuri\" can't be resolved\n"; - } - my $extension; - if ($cicurl =~ /\.xml$/) { # non gzipped file - $extension = ".xml"; - } elsif ($cicurl =~ /\.xml\.gz$/) { # gzipped file - $extension = ".xml.gz"; - } else { # error: unknown extension - die "unexpected extension in url: $cicurl, might be '.xml'". - "or '.xml.gz'"; - } - $cicfilename = $helm_dir.$cicfilename.$extension; - - if (!defined($cicurl)) { - print "\nNOT FOUND!!!!!\n"; - $c->send_error(RC_NOT_FOUND) - } else { - print_request("cic",$cicuri,$cicurl,$cicfilename); - - # Retrieves the file - my $ciccontent = download($patch_dtd,"cic",$cicurl,$cicfilename,$answerformat); - - # Answering the client - if ($answerformat eq "normal") { - answer($c,$ciccontent,"text/xml",""); - } else { - answer($c,$ciccontent,"text/xml","x-gzip"); - } - } - } elsif ($http_method eq 'GET' and $http_path eq "/register") { - my $inputurl = $cgi->param('url'); - print "Register requested...\n"; - $map{$inputuri}=$inputurl; - - # Now let's clean the cache - my $cicfilename = $inputuri; - $cicfilename =~ s/cic:(.*)/$1/; - $cicfilename =~ s/theory:(.*)/$1/; - - print "Unlinking ".$helm_dir.$cicfilename.".xml[.gz]\n"; - unlink ($helm_dir.$cicfilename.".xml"); - unlink ($helm_dir.$cicfilename.".xml.gz"); - - kill(USR1,getppid()); # signal changes to parent - untie %map; - print "done\n"; - html_nice_answer($c,"Register done"); - } elsif ($http_method eq 'GET' and $http_path eq "/resolve") { - my $outputurl = $map{$inputuri}; - $outputurl = "" if (not defined($outputurl)); - $cont = "\n\n"; - if ($outputurl eq "") { - $cont .= "\n"; - } else { - $cont .= "\n"; - } - answer($c,$cont,"text/xml",""); - } elsif ($http_method eq 'GET' and $http_path eq "/getdtd") { - my $filename = $inputuri; - $filename = $dtd_dir."/".$filename; - print "DTD: $inputuri ==> ($filename)\n"; - if (stat($filename)) { - print "Using local copy\n"; - open(FD, $filename) or die "Cannot open $filename\n"; - $cont = ""; - while() { - # Vary bad heuristic for substituion of absolute URLs - # for relative ones - s/ENTITY (.*) SYSTEM\s+"/ENTITY $1 SYSTEM "$myownurl\/getdtd?uri=/g; - $cont .= $_; - } - close(FD); - answer($c,$cont,"text/xml",""); - } else { - die "Could not find DTD!"; - } - } elsif ($http_method eq 'GET' and $http_path eq "/getstyleconf") { - my $filename = $inputuri; - $filename = $style_dir."/config/".$filename; - if (stat($filename)) { - open(FD, $filename) or die "Cannot open $filename\n"; - $cont = ""; - while() { - s/DOCTYPE (.*) SYSTEM\s+"/DOCTYPE $1 SYSTEM "$myownurl\/getstyleconf?uri=/g; - $cont .= $_; - } - close(FD); - answer($c,$cont,"text/plain",""); - } else { - die "Could not find Style Configuration File!"; - } - } elsif ($http_method eq 'GET' and $http_path eq "/getxslt") { - my $filename = $inputuri; - $filename = $style_dir."/".$filename; - print "XSLT: $inputuri ==> ($filename)\n"; - if (stat($filename)) { - print "Using local copy\n"; - open(FD, $filename) or die "Cannot open $filename\n"; - $cont = ""; - while() { - # Vary bad heuristic for substituion of absolute URLs - # for relative ones - s/xsl:import\s+href="/xsl:import href="$myownurl\/getxslt?uri=/g ; - s/xsl:include\s+href="/xsl:include href="$myownurl\/getxslt?uri=/g ; - $cont .= $_; - } - close(FD); - answer($c,$cont,"text/xml",""); - } else { - die "Could not find XSLT!"; - } - } elsif ($http_method eq 'GET' and $http_path eq "/update") { - # rebuild urls_of_uris.db - print "Update requested...\n"; - mk_urls_of_uris(); - kill(USR1,getppid()); # signal changes to parent - print " done\n"; - html_nice_answer($c,"Update done"); - } elsif ($http_method eq 'GET' and $http_path eq "/ls") { - # send back keys that begin with a given uri - my ($uritype,$uripattern,$uriprefix); - my $baseuri = $cgi->param('baseuri'); - chop $baseuri if ($baseuri =~ /.*\/$/); # remove trailing "/" - my $outype = $cgi->param('format'); # output type, might be 'txt' or 'xml' - $uripattern = $baseuri; - $uripattern =~ s/^.*:(.*)/$1/; - if ($baseuri =~ /^cic:/) { - $uritype = "cic"; - } elsif ($baseuri =~ /^theory:/) { - $uritype = "theory"; - } else { - $uritype = "invalid"; - } - if ($uritype ne "invalid") { # uri is valid - if (($outype ne 'txt') and ($outype ne 'xml')) { # invalid out type - print "Invalid output type specified: $outype\n"; - html_nice_answer($c,"Invalid output type, must be ". - "'txt' or 'xml'"); - } else { # valid output - print "BASEURI $baseuri, FORMAT $outype\n"; - $cont = finduris($uritype,$uripattern,$outype); - if ($outype eq 'txt') { - answer($c,$cont,"text/plain",""); - } elsif ($outype eq 'xml') { - answer($c,$cont,"text/xml",""); - } else { - die "Internal error, exiting!"; - } - } - } else { # invalid uri - print "Invalid uri: $baseuri, may begin with 'cic:', ". - "'theory:' or '*:'\n"; - html_nice_answer($c,"Invalid uri , must begin with ". - "'cic:' or 'theory:'"); - } - } elsif ($http_method eq 'GET' and $http_path eq "/help") { - print "Help requested!\n"; - html_nice_answer($c,"HTTP Getter Version: $VERSION"); - } elsif ($http_method eq 'GET' and $http_path =~ /\.cgi$/) { - print "CGI requested!\n"; - if ($http_path !~ /^\/[^\/]*\.cgi$/) { - html_nice_answer($c,"Invalid CGI name: $http_path, ". - "you can't request CGI that contain a slash in the name\n"); - } elsif (stat "$cgi_dir"."$http_path") { - if (not -x "$cgi_dir/$http_path") { - html_nice_answer($c,"CGI $http_path found but not ". - "executable\n"); - } else { # exec CGI and anser back its output - my %old_ENV = %ENV; - %ENV = (); - $ENV{'QUERY_STRING'} = $http_query; - my $cgi_output = `$cgi_dir/$http_path`; - answer($c,$cgi_output,"",""); - %ENV = %old_ENV; - } - } else { - html_nice_answer($c,"CGI '$http_path' not found ". - "in CGI dir '$cgi_dir'"); - } - } else { - print "\n"; - print "INVALID REQUEST!!!!!\n"; - print "(PATH: ",$http_path,", "; - print "QUERY: ",$http_query,")\n"; - $c->send_error(RC_FORBIDDEN) - } - print "\nRequest solved: ".$r->url."\n\n"; - } - $c->close; - undef($c); - print "\nCONNECTION CLOSED\n\n"; - exit; - } # fork -} - -#================================ - -sub finduris { # find uris for cic and theory trees generation - my ($uritype,$uripattern,$format) = @_; - my $content = ""; - my ($uri,$localpart,$basepart,$dirname,$suffix,$flags,$key); - my (@itemz,@already_pushed_dir); - my (%objects,%dirs); # map uris to suffixes' flags - #my $debug=1; # for debug - - print "FINDURIS, uritype: $uritype, uripattern: $uripattern, ". - "format: $format\n\n" if defined($debug); - - if (($uritype eq "cic") or ($uritype eq "theory")) { - # get info only of one type: cic or theory - foreach (keys(%map)) { # select matching uris - $uri = $_; - if ($uri =~ /^$uritype:$uripattern(\/|$|\.)/) { - if ($uri =~ /^$uritype:$uripattern\//) { # directory match - $localpart = $uri; - $localpart =~ s/^$uritype:$uripattern\/(.*)/$1/; - } elsif ($uri =~ /^$uritype:$uripattern($|\.)/) { # file match - $localpart = $uri; - $localpart =~ s/^.*\/([^\/]*)/$1/; - } else { - die "Internal error, seems that requested match is none of ". - "directory match or file match"; - } - print "LOCALPART: $localpart\n" if defined($debug); - - if ($localpart =~ /^[^\/]*$/) { # no slash, an OBJECT - $basepart = $localpart; - $basepart =~ s/^([^.]*\.[^.]*)(\.types)?(\.ann)?/$1/; - # remove exts .types or - # .types.ann - $flags = $objects{$basepart}; # get old flags - if ($localpart =~ /\.ann$/) { - $flags = add_flag("ann","YES",$flags); - } else { - $flags = add_flag("ann","NO",$flags); - } - if ($localpart =~ /\.types$/) { - $flags = add_flag("types","YES",$flags); - } elsif ($localpart =~ /\.types\.ann$/) { - $flags = add_flag("types","ANN",$flags); - } else { - $flags = add_flag("types","NO",$flags); - } - $objects{$basepart} = $flags; # save new flags - } else { # exists at least one slash, a DIR - ($dirname) = split (/\//, $localpart); - $dirs{$dirname} = ""; # no flags requirement for dir - } - } - } - } else { - die "getter internal error: unsupported uritype: \"$uritype\""; - } - # now generate OUTPUT: - # output will be saved in $content - if ($format eq "txt") { # TXT output - foreach $key (sort(keys %dirs)) { - $content .= "dir, " . $key . "\n"; - } - foreach $key (sort(keys %objects)) { - $content .= "object, $key, " . $objects{$key} . "\n"; - } - } elsif ($format eq "xml") { # XML output - $content .= '' . "\n"; - $content .= "" . "\n\n"; - $content .= "\n"; - foreach $key (sort(keys %dirs)) { - $content .= "\t
$key
\n"; - } - foreach $key (sort(keys %objects)) { - $content .= "\t\n"; - $flags = $objects{$key}; - $flags =~ s/^<(.*)>$/$1/; - my ($annflag,$typesflag) = split /,/,$flags; - $content .= "\t\t\n"; - $content .= "\t\t\n"; - $content .= "\t\n"; - } - $content .= "\n"; - } else { # may not enter this branch - die "Getter internal error: invalid format received by finduris sub"; - } - return $content; -} - -sub add_flag { -# manage string like: "" -# "ann_flag" may be one of "ann_YES", "ann_NO" -# "type_flag" may be one of "types_NO", "types_YES", "types_ANN" -# when adding a flag the max between the current flag and the new flag -# is taken, the orders are ann_NO < ann_YES and types_NO < types_YES < -# types_ANN - my ($flagtype,$newflag,$str) = @_; - $str = "<,>" if ($str eq ""); - ($str =~ s/^<(.*,.*)>$/$1/) or die "Internal error: ". - "wrong string format for flag adding in $str"; - my ($annflag,$typeflag) = split /,/,$str; - if ($flagtype eq "ann") { # ANN flag handling - if ($newflag eq "YES") { - $annflag = "YES"; - } elsif ($newflag eq "NO") { - $annflag = "NO" unless ($annflag eq "YES"); - } else { - die "Internal error: annflag must be \"YES\" or \"NO\""; - } - } elsif ($flagtype eq "types") { # TYPES flag handling - if ($newflag eq "ANN") { - $typeflag = "ANN"; - } elsif ($newflag eq "YES") { - $typeflag = "YES" unless ($typeflag eq "ANN"); - } elsif ($newflag eq "NO") { - $typeflag = "NO" - unless (($typeflag eq "ANN") or ($typeflag eq "YES")); - } else { - die "Internal error: typeflag must be \"YES\", \"NO\" or \"ANN\""; - } - } else { - die "Internal error: unsupported flagtype \"$flagtype\""; - } - $str = "<$annflag,$typeflag>"; -} - -#CSC: Too much powerful: creates even /home, /home/users/, ... -#CSC: Does not raise errors if could not create dirs/files -sub mkdirs -{ - my ($pathname) = @_; - my @dirs = split /\//,$pathname; - my $tmp; - foreach $dir (@dirs) { - $tmp = ((defined($tmp)) ? $tmp."\/".$dir : ""); - mkdir($tmp,0777); - } - rmdir($tmp); -} - -sub print_request -{ - my ($str,$uri,$url,$filename) = @_; - print $str."uri: $uri\n"; - print $str."url: $url\n"; - print $str."filename: $filename\n\n"; -} - -sub callback -{ - my ($data) = @_; - $cont .= $data; -} - -sub gunzip { # gunzip a file and return the deflated content - my ($filename) = @_; - - my ($gz, $buffer, $cont); - - print "deflating $filename ...\n"; - $gz = gzopen($filename, "r") - or die "Cannot open gzip'ed file $filename: $gzerrno"; - $cont = ""; - while ( $gz->gzread($buffer) > 0 ) { - $cont .= $buffer; - } - die "Error while reading : $gzerrno\n" if $gzerrno != Z_STREAM_END ; - $gz->gzclose(); - - return $cont; -} - -sub gzip { # gzip the content argument and save it to filename argument - my ($cont, $filename) = @_; - #my $debug=1; # debug only - - print "gzopening $filename ...\n" if (defined($debug)); - my $gz = gzopen($filename, "w") - or die "Cannot gzopen for writing file $filename: $gzerrno"; - print "gzwriting ...\n" if (defined($debug)); - $gz->gzwrite($cont) or die "error writing: $gzerrno, exiting!\n"; - print "gzclosing ...\n" if (defined($debug)); - $gz->gzclose(); -} - -sub download { - my ($patch_dtd,$str,$url,$filename,$format) = @_; - my ($gz, $buffer); - - #my $debug=1; # for DEBUG only - - my $resourcetype; # retrieve mode: "normal" (.xml) or "gzipped" (.xml.gz) - if ($filename =~ /\.xml$/) { # set retrieve mode - $resourcetype = "normal"; - } elsif ($filename =~ /\.xml\.gz$/) { - $resourcetype = "gzipped"; - } else { - die "Unsupported download extension, might be '.gz' or '.xml'\n"; - } - my $basefname = $filename; - $basefname =~ s/\.gz$//; # get base resource name removing trailing .gz - $cont = ""; # modified by side-effect by the callback function - - my $localfname=""; - if (stat($basefname)) { - $localfname=$basefname; - } elsif (stat($basefname.".gz")) { - $localfname=$basefname.".gz"; - } - if ($localfname ne "") { # we already have local copy of requested file - # check both possible cache entry: gzipped or normal - print "Using local copy for the $str file\n"; - if ($localfname =~ /\.xml\.gz$/) { # deflating cached file and return it - $cont = gunzip($localfname); - } elsif ($localfname =~ /\.xml$/) { # just return cached file - open(FD, $localfname) or die "Cannot open $localfname"; - while() { $cont .= $_; } - close(FD); - } else { # error - die "Internal error: unexpected file name $localfname," - ."must end with '.gz' or '.xml.gz'\n"; - } - } else { # download file from net - print "Downloading the $str file\n"; # download file - my $ua = LWP::UserAgent->new; - my $request = HTTP::Request->new(GET => "$url"); - my $response = $ua->request($request, \&callback); - - # cache retrieved file to disk - # TODO: inefficent, I haven't yet undestood how to deflate - # in memory gzipped file, without call "gzopen" - print "Storing the $str file\n"; - print "Making dirs ...\n" if (defined($debug)); - mkdirs($filename); - print "Opening tmp file for writing ...\n" if (defined($debug)); - open(FD, ">".$filename.".tmp") or die "Cannot open $filename.tmp\n"; - print "Writing on tmp file ...\n" if (defined($debug)); - print FD $cont; - print "Closing tmp file ...\n" if (defined($debug)); - close(FD); - - # handle cache conversion normal->gzipped or gzipped->normal as user choice - print "cachemode:$cachemode, resourcetype:$resourcetype\n" if (defined($debug)); - if (($cachemode eq 'normal') and ($resourcetype eq 'normal')) { - # cache the file as is - rename "$filename.tmp", $filename; - } elsif (($cachemode eq 'gzipped') and ($resourcetype eq 'gzipped')) { - # cache the file as is - # and update the $cont variabile with deflated content - rename "$filename.tmp", $filename; - $cont = gunzip($filename); - } elsif (($cachemode eq 'normal') and ($resourcetype eq 'gzipped')) { - # deflate cache entry - # and update $cont - open(FD, "> $basefname") or die "cannot open $basefname\n"; - $cont = gunzip($filename.".tmp"); - print FD $cont; - close(FD); - unlink "$filename.tmp"; # delete old gzipped file - } elsif (($cachemode eq 'gzipped') and ($resourcetype eq 'normal')) { - # compress cache entry - print "gzipping ...\n" if (defined($debug)); - gzip($cont, $basefname.".gz"); - unlink "$filename.tmp"; # delete old uncompressed file - } else { - die "Internal error, unsopported cachemode, resourcetype couple\n"; - } - # $cont now contained uncompressed data - } - if ($patch_dtd eq "yes") { - $cont =~ s/DOCTYPE (.*) SYSTEM\s+"http:\/\/www.cs.unibo.it\/helm\/dtd\//DOCTYPE $1 SYSTEM "$myownurl\/getdtd?uri=/g; - } - if ($format eq "gz") { - gzip($cont,"$basefname.tmp"); - open (TMP, "< $basefname.tmp") - or die "Can't open tempfile: $filename.tmp, exiting!\n"; - $cont = ""; - while() { - $cont .= $_; - } - close TMP; - unlink ($basefname . ".tmp") or - die "cannot unlink temporary file: $basefname.tmp\n"; - } - - return $cont; -} - -sub answer { -# answer the client setting content, Content-Type and Content-Enconding -# of the answer - my ($c,$cont,$contype,$contenc) = @_; - my $res = new HTTP::Response; - $res->content($cont); - $res->push_header("Content-Type" => $contype) - unless ($contype eq ""); - $res->push_header("Content-Encoding" => $contenc) - unless ($contenc eq ""); - $res->push_header("Cache-Control" => "no-cache"); - $res->push_header("Pragma" => "no-cache"); - $res->push_header("Expires" => "0"); - $c->send_response($res); -} - -sub html_nice_answer { -# answer the client whith a nice html document - my ($c,$content) = @_; - $content = "

$content

"; - answer($c,$content,"text/html",""); -} - -sub helm_wget { -#retrieve a file from an url and write it to a temp dir -#used for retrieve resource index from servers - $cont = ""; - my ($prefix, $URL) = @_; - my $ua = LWP::UserAgent->new; - my $request = HTTP::Request->new(GET => "$URL"); - my $response = $ua->request($request, \&callback); - my ($filename) = reverse (split "/", $URL); # get filename part of the URL - open (TEMP, "> $prefix/$filename") - || die "Cannot open temporary file: $prefix/$filename\n"; - print TEMP $cont; - close TEMP; -} - -sub update { - untie %map; - tie(%map, 'DB_File', $uris_dbm.".db", O_RDWR, 0664); -} - -sub mk_urls_of_uris { -#rebuild $uris_dbm.db fetching resource indexes from servers - my ( - $server, $idxfile, $uri, $url, $comp, $line, - @servers, - %urls_of_uris - ); - - untie %map; - if (stat $uris_dbm.".db") { # remove old db file - unlink($uris_dbm.".db") or - die "cannot unlink old db file: $uris_dbm.db\n"; - } - tie(%urls_of_uris, 'DB_File', $uris_dbm.".db", O_RDWR|O_CREAT, 0664); - - open (SRVS, "< $servers_file") or - die "cannot open servers file: $servers_file\n"; - @servers = ; - close (SRVS); - while ($server = pop @servers) { #cicle on servers in reverse order - print "processing server: $server ...\n"; - chomp $server; - helm_wget($tmp_dir, $server."/".$indexname); #get index - $idxfile = $tmp_dir."/".$indexname; - open (INDEX, "< $idxfile") or - die "cannot open temporary index file: $idxfile\n"; - while ($line = ) { #parse index and add entry to urls_of_uris - chomp $line; - ($uri,$comp) = split /[ \t]+/, $line; - # build url: - if ($comp =~ /gz/) { - $url = $uri . ".xml" . ".gz"; - } else { - $url = $uri . ".xml"; - } - $url =~ s/cic:/$server/; - $url =~ s/theory:/$server/; - $urls_of_uris{$uri} = $url; - } - close INDEX; - die "cannot unlink temporary file: $idxfile\n" - if (unlink $idxfile) != 1; - } - - untie(%urls_of_uris); - tie(%map, 'DB_File', $uris_dbm.".db", O_RDWR, 0664); -} - -- 2.39.2