$SCRIPT="bin/request";require"myConfig.out";unlink($SCRIPT);openSCRIPT,">$SCRIPT"ordie"Can't open for writing $SCRIPT: $!";SCRIPT<<"END";#!$PERL -w\$DISTNAME = "$NAME-$VERSION";ENDSCRIPT <<'END';chmod(0755,$SCRIPT);# $Id: request.PL,v 1.20 1995/09/20 22:23:45 aas Exp $## Simple user agent using LWP library. Its interface is based on the# libwww-perl-0.40 'get'-program.=head1 NAMErequest, GET, HEAD, POST - Simple WWW user agent=head1 SYNOPSISrequest [-eEdvhx] [-m method] [-b <base URL>] [-t <timeout>][-i <if-modified-since>] [-c <content-type>] [-C <credentials>][-p <proxy-url>] [-o <format>] <url>...=head1 DESCRIPTIONThis program can be used to send requests to WWW servers and yourlocal file system. The request content for POST, PUT and CHECKINmethods is read from stdin. The content of the response is printed onstdout. Error messages are printed on stderr. The program returns astatus value indicating the number of URLs that failed.The options are:=over 4=item -m <method>Set which method to use for the request. If this option is not used,then the method is derived from the name of the program.=item -fForce request through, even if the program believes that the method isillegal. The server will probably reject the request.=item -b <url>This URL will be used as the base URL for the URLs that the method isapplied to. The base URL only takes effect for relative URLs. If youdo not provide this option and the URLs are relative, then they willbe treated as files in the local file system.=item -t <timeout>Set the timeout value for the requests. The timeout is the amount oftime that the program will wait for a response from the remote serverbefore it fails. The default unit for the timeout value is seconds.You might append "m" or "h" to the timeout value to make it minutes orhours, respectively. The default timeout is '3m', i.e. 3 minutes.=item -i <time>Set the If-Modified-Since header in the request. If I<time> it thename of a file, use the modification timestamp for this file. IfI<time> is not a file, it is parsed as a literal date. Take a look atL<HTTP::Date> for recogniced formats.=item -c <content-type>Set the Content-Type for the request. This option is only allowed forrequests that take a content, i.e. POST, PUT and CHECKIN. You canforce methods to take content by using the C<-f> option together withC<-c>. The default Content-Type for POST isC<application/x-www-form-urlencoded>. The default Content-type forthe others is C<text/plain>.=item -p <proxy-url>Set the proxy to be used for the requests. The program also loadsproxy settings from the environment. You can disable this with theC<-P> option.=item -C <username>:<password>Provide credentials for documents that are protected by BasicAuthentication. If the document is protected and you did not specifythe username and password with this option, then you will be promptedto provide these values.=backThe following options controls what is displayed by the program:=over 4=item -uPrint request method and absolute URL as requests are made.=item -UPrint requeset headers in addition to request method and absolute URL.=item -sPrint response status code. This option is always on for HEAD requests.=item -SPrint response status chain. This shows redirect and autorizationrequests that are handled by the library.=item -ePrint response headers. This option is always on for HEAD requests.=item -dDo B<not> print the content of the response.=item -o <format>Process HTML content in various ways before printing it. If thecontent type of the response is not HTML, then this option has noeffect. The legal format values are; I<text>, I<ps>, I<links>,I<html> and I<dump>.If you specify the I<text> format then the HTML will be formatted asplain latin1 text. If you specify the I<ps> format then it will beformatted as Postscript.The I<links> format will output all links found in the HTML document.Relative links will be expanded to absolute ones.The I<html> format will reformat the HTML code and the I<dump> formatwill just dump the HTML syntax tree.=item -vPrint the version number of the program and quit.=item -hPrint usage message and quit.=item -xExtra debugging output.=backBecause this program is implemented using the LWP library, it willonly support the protocols that LWP supports.=head1 SEE ALSOL<mirror>, L<LWP>=head1 COPYRIGHTCopyright (c) 1995 Gisle Aas. All rights reserved.This library is free software; you can redistribute it and/ormodify it under the same terms as Perl itself.=head1 AUTHORGisle Aas <aas@oslonett.no>=cut$0 =~ s,.*/,,;# use basename only$VERSION=sprintf("%d.%02d",q$Revision: 1.20 $=~ /(\d+)\.(\d+)/);requireLWP;requireLWP::Debug;useHTTP::Date;requireURI::URL;# This table lists the methods that are allowed. It should really be# a superset for all methods supported for every scheme that may be# supported by the library. Currently it might be a bit too HTTP# specific. You might use the -f option to force a method through.## "" = No content in request, "C" = Needs content in request#%allowed_methods= (GET=>"",HEAD=>"",POST=>"C",PUT=>"C",DELETE=>"",LINK=>"",UNLINK=>"",CHECKIN=>"C",CHECKOUT=>"",SHOWMETHOD=>"",);# We make our own specialization of LWP::UserAgent that asks for# user/password if document is protected.{@ISA=qw(LWP::UserAgent);subnew{my$self= LWP::UserAgent::new(@_);$self->agent("LWP-$0/$main::VERSION");$self;}subgetBasicCredentials{my($self,$realm,$uri) =@_;if($main::opt_C) {returnsplit(':',$main::opt_C, 2);}elsif(-t) {my$netloc=$uri->netloc;"Enter username for $realm at $netloc: ";my$user= <STDIN>;chomp($user);return(undef,undef)unlesslength$user;"Password: ";system("stty -echo");my$password= <STDIN>;system("stty echo");"\n";# because we disabled echochomp($password);return($user,$password);}else{return(undef,undef)}}}$method=uc($0 eq"request"?"GET": $0);# Parse command lineuseGetopt::Std;$opt_m=undef;# set method$opt_f=undef;# make request even if method is now in %allowed_methods$opt_b=undef;# base url$opt_t=undef;# timeout$opt_i=undef;# if-modified-since$opt_c=undef;# content type for POST$opt_C=undef;# credidentials for basic authorization$opt_u=undef;# display method, URL and headers of request$opt_U=undef;# display request headers also$opt_s=undef;# display status code$opt_S=undef;# display whole chain of status codes$opt_e=undef;# display response headers (default for HEAD)$opt_d=undef;# don't display content$opt_h=undef;# print usage$opt_v=undef;# print version$opt_x=undef;# extra debugging info$opt_p=undef;# proxy URL$opt_P=undef;# don't load proxy setting from environment$opt_o=undef;# output formatunless(getopts("xhvuUsSedPp:b:t:i:c:C:m:fo:")) {usage();}if($opt_v) {$lwpVersion=&LWP::Version;die<<"EOT";This is $DISTNAME $0 version $VERSION (using LWP version $lwpVersion)Copyright (C) 1995 Gisle Aas. All rights reserved.This program is free software; you can redistribute it and/ormodify it under the same terms as Perl itself.EOT}usage()if$opt_h|| !@ARGV;LWP::Debug::level('+')if$opt_x;# Create the user agent object$ua= new RequestAgent;# Load proxy settings from *_proxy environment variables.$ua->envProxyunless$opt_P;$method=uc($opt_m)ifdefined$opt_m;if($opt_f) {if($opt_c) {$allowed_methods{$method} ="C";}else{$allowed_methods{$method} ="";}}elsif(!defined$allowed_methods{$method}) {die"$0: $method is not an allowed method\n";}if($methodeq"HEAD") {$opt_s= 1;$opt_e= 1unless$opt_d;$opt_d= 1;}if(defined$opt_t) {$opt_t=~ /^(\d+)([smh])?/;die"$0: Illegal timeout value!\n"unlessdefined$1;$timeout= $1;$timeout*= 60if($2 eq"m");$timeout*= 3600if($2 eq"h");$ua->timeout($timeout);}if(defined$opt_i) {if(-e$opt_i) {$time= (stat_)[9];}else{$time= str2time($opt_i);die"$0: Illegal time syntax for -i option\n"unlessdefined$time;}$opt_i= time2str($time);}$content=undef;if($allowed_methods{$method} eq"C") {# This request needs some contentunless(defined$opt_c) {# set default content type$opt_c= ($methodeq"POST") ?"application/x-www-form-urlencoded":"text/plain";}else{die"$0: Illegal Content-type format\n"unless$opt_c=~ m,^[\w\-]+/[\w\-]+$,}"Please enter content ($opt_c) to be ${method}ed:\n"if-t;$content=join("", <STDIN>);}else{die"$0: Can't set Content-type for $method requests\n"ifdefined$opt_c;}# Set up a request. We use the same request for all URLs.$request= new HTTP::Request$method;$request->header('If-Modified-Since',$opt_i)ifdefined$opt_i;#$request->header('Accept', '*/*');if($opt_c) {# will always be set for request that wants content$request->header('Content-Type',$opt_c);$request->header('Content-Length',length$content);$request->content($content);}$errors= 0;# Ok, now we perform the requests, one URL at a timewhile($url=shift) {# Create the URL objecteval{if($url=~ /^\w+:/ ||$opt_b) {# is there any scheme specification$url= new URI::URL$url,$opt_b;}else{# No scheme specified for the URL (treat it as a file)$url= newlocal URI::URL$url;}};if($@) {$@ =~ s/at\s+\S+\s+line\s\d+//;STDERR $@;$errors++;next;}$ua->proxy($url->scheme,$opt_p)if$opt_p;$request->url($url);$response=$ua->request($request);if($opt_u||$opt_U) {my$url=$response->request->url->as_string;"$method $url\n";$response->request->headerAsString,"\n"if$opt_U;}if($opt_S) {printResponseChain($response);}elsif($opt_s) {# Display status codemy$code=$response->code;$code," ", statusMessage($code),"\n";}if($opt_e) {# Display headers$response->headerAsString;"\n";# separate headers and content}if($response->isSuccess) {unless($opt_d) {if($opt_o&&lc($response->header('Content-Type')) eq'text/html') {my$html= HTML::Parse::parse_html($response->content);{$opt_oeq'ps'&&do{my$f= new HTML::FormatPS;$f->format($html);last;};$opt_oeq'text'&&do{my$f= new HTML::FormatText;$f->format($html);last;};$opt_oeq'html'&&do{$html->asHTML;last;};$opt_oeq'links'&&do{my$base=$response->request->url;for( @{$html->extractLinks } ) {my($link,$elem) =@$_;my$tag=uc$elem->tag;$link= new URI::URL$link,$base;"$tag\t",$link->abs->as_string,"\n";}last;};$opt_oeq'dump'&&do{$html->dump;last;};die"Illegal -o option value ($opt_o)\n";}}else{$response->content;}}}else{STDERR$response->errorAsHTMLunless$opt_d;$errors++;}}exit$errors;subprintResponseChain{my($response) =@_;returnunlessdefined$response;printResponseChain($response->previous);my$method=$response->request->method;my$url=$response->request->url->as_string;my$code=$response->code;"$method $url --> $code ", statusMessage($code),"\n";}subusage{die<<"EOT";Usage: $0 [-options] <url>...-m <method> use method for the request (default is '$method')-f make request even if $0 believes method is illegal-b <base> Use the specified URL as base-t <timeout> Set timeout value-i <time> Set the If-Modified-Since header on the request-c <conttype> use this content-type for POST, PUT, CHECKIN-p <proxyurl> use this as a proxy-P don't load proxy settings from environment-u Display method and URL before any response-U Display request headers (implies -u)-s Display response status code-S Display response status chain-e Display response headers-d Do not display content-o <format> Process HTML content in various ways-v Show program version-h Print this message-x Extra debugging outputEOT}END