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Initial class construction

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This commit is contained in:
João Narciso
2019-05-06 16:34:28 +02:00
parent 67f2d57e03
commit 431ff5f7d4
5813 changed files with 1622108 additions and 0 deletions
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72
Git/usr/share/perl5/vendor_perl/LWP/Protocol/cpan.pm Normal file
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package LWP::Protocol::cpan;
use strict;
use base qw(LWP::Protocol);
our $VERSION = '6.36';
require URI;
require HTTP::Status;
require HTTP::Response;
our $CPAN;
unless ($CPAN) {
# Try to find local CPAN mirror via $CPAN::Config
eval {
require CPAN::Config;
if($CPAN::Config) {
my $urls = $CPAN::Config->{urllist};
if (ref($urls) eq "ARRAY") {
my $file;
for (@$urls) {
if (/^file:/) {
$file = $_;
last;
}
}
if ($file) {
$CPAN = $file;
}
else {
$CPAN = $urls->[0];
}
}
}
};
$CPAN ||= "http://cpan.org/"; # last resort
}
# ensure that we don't chop of last part
$CPAN .= "/" unless $CPAN =~ m,/$,;
sub request {
my($self, $request, $proxy, $arg, $size) = @_;
# check proxy
if (defined $proxy)
{
return HTTP::Response->new(HTTP::Status::RC_BAD_REQUEST,
'You can not proxy with cpan');
}
# check method
my $method = $request->method;
unless ($method eq 'GET' || $method eq 'HEAD') {
return HTTP::Response->new(HTTP::Status::RC_BAD_REQUEST,
'Library does not allow method ' .
"$method for 'cpan:' URLs");
}
my $path = $request->uri->path;
$path =~ s,^/,,;
my $response = HTTP::Response->new(HTTP::Status::RC_FOUND);
$response->header("Location" => URI->new_abs($path, $CPAN));
$response;
}
1;

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Git/usr/share/perl5/vendor_perl/LWP/Protocol/data.pm Normal file
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package LWP::Protocol::data;
# Implements access to data:-URLs as specified in RFC 2397
use strict;
our $VERSION = '6.36';
require HTTP::Response;
require HTTP::Status;
use base qw(LWP::Protocol);
use HTTP::Date qw(time2str);
require LWP; # needs version number
sub request
{
my($self, $request, $proxy, $arg, $size) = @_;
# check proxy
if (defined $proxy)
{
return HTTP::Response->new( HTTP::Status::RC_BAD_REQUEST,
'You can not proxy with data');
}
# check method
my $method = $request->method;
unless ($method eq 'GET' || $method eq 'HEAD') {
return HTTP::Response->new( HTTP::Status::RC_BAD_REQUEST,
'Library does not allow method ' .
"$method for 'data:' URLs");
}
my $url = $request->uri;
my $response = HTTP::Response->new( HTTP::Status::RC_OK, "Document follows");
my $media_type = $url->media_type;
my $data = $url->data;
$response->header('Content-Type' => $media_type,
'Content-Length' => length($data),
'Date' => time2str(time),
'Server' => "libwww-perl-internal/$LWP::VERSION"
);
$data = "" if $method eq "HEAD";
return $self->collect_once($arg, $response, $data);
}
1;

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package LWP::Protocol::file;
use base qw(LWP::Protocol);
use strict;
our $VERSION = '6.36';
require LWP::MediaTypes;
require HTTP::Request;
require HTTP::Response;
require HTTP::Status;
require HTTP::Date;
sub request
{
my($self, $request, $proxy, $arg, $size) = @_;
$size = 4096 unless defined $size and $size > 0;
# check proxy
if (defined $proxy)
{
return HTTP::Response->new( HTTP::Status::RC_BAD_REQUEST,
'You can not proxy through the filesystem');
}
# check method
my $method = $request->method;
unless ($method eq 'GET' || $method eq 'HEAD') {
return HTTP::Response->new( HTTP::Status::RC_BAD_REQUEST,
'Library does not allow method ' .
"$method for 'file:' URLs");
}
# check url
my $url = $request->uri;
my $scheme = $url->scheme;
if ($scheme ne 'file') {
return HTTP::Response->new( HTTP::Status::RC_INTERNAL_SERVER_ERROR,
"LWP::Protocol::file::request called for '$scheme'");
}
# URL OK, look at file
my $path = $url->file;
# test file exists and is readable
unless (-e $path) {
return HTTP::Response->new( HTTP::Status::RC_NOT_FOUND,
"File `$path' does not exist");
}
unless (-r _) {
return HTTP::Response->new( HTTP::Status::RC_FORBIDDEN,
'User does not have read permission');
}
# looks like file exists
my($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$filesize,
$atime,$mtime,$ctime,$blksize,$blocks)
= stat(_);
# XXX should check Accept headers?
# check if-modified-since
my $ims = $request->header('If-Modified-Since');
if (defined $ims) {
my $time = HTTP::Date::str2time($ims);
if (defined $time and $time >= $mtime) {
return HTTP::Response->new( HTTP::Status::RC_NOT_MODIFIED,
"$method $path");
}
}
# Ok, should be an OK response by now...
my $response = HTTP::Response->new( HTTP::Status::RC_OK );
# fill in response headers
$response->header('Last-Modified', HTTP::Date::time2str($mtime));
if (-d _) { # If the path is a directory, process it
# generate the HTML for directory
opendir(D, $path) or
return HTTP::Response->new( HTTP::Status::RC_INTERNAL_SERVER_ERROR,
"Cannot read directory '$path': $!");
my(@files) = sort readdir(D);
closedir(D);
# Make directory listing
require URI::Escape;
require HTML::Entities;
my $pathe = $path . ( $^O eq 'MacOS' ? ':' : '/');
for (@files) {
my $furl = URI::Escape::uri_escape($_);
if ( -d "$pathe$_" ) {
$furl .= '/';
$_ .= '/';
}
my $desc = HTML::Entities::encode($_);
$_ = qq{<LI><A HREF="$furl">$desc</A>};
}
# Ensure that the base URL is "/" terminated
my $base = $url->clone;
unless ($base->path =~ m|/$|) {
$base->path($base->path . "/");
}
my $html = join("\n",
"<HTML>\n<HEAD>",
"<TITLE>Directory $path</TITLE>",
"<BASE HREF=\"$base\">",
"</HEAD>\n<BODY>",
"<H1>Directory listing of $path</H1>",
"<UL>", @files, "</UL>",
"</BODY>\n</HTML>\n");
$response->header('Content-Type', 'text/html');
$response->header('Content-Length', length $html);
$html = "" if $method eq "HEAD";
return $self->collect_once($arg, $response, $html);
}
# path is a regular file
$response->header('Content-Length', $filesize);
LWP::MediaTypes::guess_media_type($path, $response);
# read the file
if ($method ne "HEAD") {
open(my $fh, '<', $path) or return new
HTTP::Response(HTTP::Status::RC_INTERNAL_SERVER_ERROR,
"Cannot read file '$path': $!");
binmode($fh);
$response = $self->collect($arg, $response, sub {
my $content = "";
my $bytes = sysread($fh, $content, $size);
return \$content if $bytes > 0;
return \ "";
});
close($fh);
}
$response;
}
1;

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package LWP::Protocol::ftp;
# Implementation of the ftp protocol (RFC 959). We let the Net::FTP
# package do all the dirty work.
use base qw(LWP::Protocol);
use strict;
our $VERSION = '6.36';
use Carp ();
use HTTP::Status ();
use HTTP::Negotiate ();
use HTTP::Response ();
use LWP::MediaTypes ();
use File::Listing ();
{
package # hide from PAUSE
LWP::Protocol::MyFTP;
use strict;
use base qw(Net::FTP);
sub new {
my $class = shift;
my $self = $class->SUPER::new(@_) || return undef;
my $mess = $self->message; # welcome message
$mess =~ s|\n.*||s; # only first line left
$mess =~ s|\s*ready\.?$||;
# Make the version number more HTTP like
$mess =~ s|\s*\(Version\s*|/| and $mess =~ s|\)$||;
${*$self}{myftp_server} = $mess;
#$response->header("Server", $mess);
$self;
}
sub http_server {
my $self = shift;
${*$self}{myftp_server};
}
sub home {
my $self = shift;
my $old = ${*$self}{myftp_home};
if (@_) {
${*$self}{myftp_home} = shift;
}
$old;
}
sub go_home {
my $self = shift;
$self->cwd(${*$self}{myftp_home});
}
sub request_count {
my $self = shift;
++${*$self}{myftp_reqcount};
}
sub ping {
my $self = shift;
return $self->go_home;
}
}
sub _connect {
my ($self, $host, $port, $user, $account, $password, $timeout) = @_;
my $key;
my $conn_cache = $self->{ua}{conn_cache};
if ($conn_cache) {
$key = "$host:$port:$user";
$key .= ":$account" if defined($account);
if (my $ftp = $conn_cache->withdraw("ftp", $key)) {
if ($ftp->ping) {
# save it again
$conn_cache->deposit("ftp", $key, $ftp);
return $ftp;
}
}
}
# try to make a connection
my $ftp = LWP::Protocol::MyFTP->new(
$host,
Port => $port,
Timeout => $timeout,
LocalAddr => $self->{ua}{local_address},
);
# XXX Should be some what to pass on 'Passive' (header??)
unless ($ftp) {
$@ =~ s/^Net::FTP: //;
return HTTP::Response->new(HTTP::Status::RC_INTERNAL_SERVER_ERROR, $@);
}
unless ($ftp->login($user, $password, $account)) {
# Unauthorized. Let's fake a RC_UNAUTHORIZED response
my $mess = scalar($ftp->message);
$mess =~ s/\n$//;
my $res = HTTP::Response->new(HTTP::Status::RC_UNAUTHORIZED, $mess);
$res->header("Server", $ftp->http_server);
$res->header("WWW-Authenticate", qq(Basic Realm="FTP login"));
return $res;
}
my $home = $ftp->pwd;
$ftp->home($home);
$conn_cache->deposit("ftp", $key, $ftp) if $conn_cache;
return $ftp;
}
sub request {
my ($self, $request, $proxy, $arg, $size, $timeout) = @_;
$size = 4096 unless $size;
# check proxy
if (defined $proxy) {
return HTTP::Response->new(HTTP::Status::RC_BAD_REQUEST,
'You can not proxy through the ftp');
}
my $url = $request->uri;
if ($url->scheme ne 'ftp') {
my $scheme = $url->scheme;
return HTTP::Response->new(HTTP::Status::RC_INTERNAL_SERVER_ERROR,
"LWP::Protocol::ftp::request called for '$scheme'");
}
# check method
my $method = $request->method;
unless ($method eq 'GET' || $method eq 'HEAD' || $method eq 'PUT') {
return HTTP::Response->new(HTTP::Status::RC_BAD_REQUEST,
'Library does not allow method ' . "$method for 'ftp:' URLs");
}
my $host = $url->host;
my $port = $url->port;
my $user = $url->user;
my $password = $url->password;
# If a basic authorization header is present than we prefer these over
# the username/password specified in the URL.
{
my ($u, $p) = $request->authorization_basic;
if (defined $u) {
$user = $u;
$password = $p;
}
}
# We allow the account to be specified in the "Account" header
my $account = $request->header('Account');
my $ftp
= $self->_connect($host, $port, $user, $account, $password, $timeout);
return $ftp if ref($ftp) eq "HTTP::Response"; # ugh!
# Create an initial response object
my $response = HTTP::Response->new(HTTP::Status::RC_OK, "OK");
$response->header(Server => $ftp->http_server);
$response->header('Client-Request-Num' => $ftp->request_count);
$response->request($request);
# Get & fix the path
my @path = grep {length} $url->path_segments;
my $remote_file = pop(@path);
$remote_file = '' unless defined $remote_file;
my $type;
if (ref $remote_file) {
my @params;
($remote_file, @params) = @$remote_file;
for (@params) {
$type = $_ if s/^type=//;
}
}
if ($type && $type eq 'a') {
$ftp->ascii;
}
else {
$ftp->binary;
}
for (@path) {
unless ($ftp->cwd($_)) {
return HTTP::Response->new(HTTP::Status::RC_NOT_FOUND,
"Can't chdir to $_");
}
}
if ($method eq 'GET' || $method eq 'HEAD') {
if (my $mod_time = $ftp->mdtm($remote_file)) {
$response->last_modified($mod_time);
if (my $ims = $request->if_modified_since) {
if ($mod_time <= $ims) {
$response->code(HTTP::Status::RC_NOT_MODIFIED);
$response->message("Not modified");
return $response;
}
}
}
# We'll use this later to abort the transfer if necessary.
# if $max_size is defined, we need to abort early. Otherwise, it's
# a normal transfer
my $max_size = undef;
# Set resume location, if the client requested it
if ($request->header('Range') && $ftp->supported('REST')) {
my $range_info = $request->header('Range');
# Change bytes=2772992-6781209 to just 2772992
my ($start_byte, $end_byte) = $range_info =~ /.*=\s*(\d+)-(\d+)?/;
if (defined $start_byte && !defined $end_byte) {
# open range -- only the start is specified
$ftp->restart($start_byte);
# don't define $max_size, we don't want to abort early
}
elsif (defined $start_byte
&& defined $end_byte
&& $start_byte >= 0
&& $end_byte >= $start_byte)
{
$ftp->restart($start_byte);
$max_size = $end_byte - $start_byte;
}
else {
return HTTP::Response->new(HTTP::Status::RC_BAD_REQUEST,
'Incorrect syntax for Range request');
}
}
elsif ($request->header('Range') && !$ftp->supported('REST')) {
return HTTP::Response->new(HTTP::Status::RC_NOT_IMPLEMENTED,
"Server does not support resume."
);
}
my $data; # the data handle
if (length($remote_file) and $data = $ftp->retr($remote_file)) {
my ($type, @enc) = LWP::MediaTypes::guess_media_type($remote_file);
$response->header('Content-Type', $type) if $type;
for (@enc) {
$response->push_header('Content-Encoding', $_);
}
my $mess = $ftp->message;
if ($mess =~ /\((\d+)\s+bytes\)/) {
$response->header('Content-Length', "$1");
}
if ($method ne 'HEAD') {
# Read data from server
$response = $self->collect(
$arg,
$response,
sub {
my $content = '';
my $result = $data->read($content, $size);
# Stop early if we need to.
if (defined $max_size) {
# We need an interface to Net::FTP::dataconn for getting
# the number of bytes already read
my $bytes_received = $data->bytes_read();
# We were already over the limit. (Should only happen
# once at the end.)
if ($bytes_received - length($content) > $max_size)
{
$content = '';
}
# We just went over the limit
elsif ($bytes_received > $max_size) {
# Trim content
$content = substr($content, 0,
$max_size
- ($bytes_received - length($content)));
}
# We're under the limit
else {
}
}
return \$content;
}
);
}
# abort is needed for HEAD, it's == close if the transfer has
# already completed.
unless ($data->abort) {
# Something did not work too well. Note that we treat
# responses to abort() with code 0 in case of HEAD as ok
# (at least wu-ftpd 2.6.1(1) does that).
if ($method ne 'HEAD' || $ftp->code != 0) {
$response->code(HTTP::Status::RC_INTERNAL_SERVER_ERROR);
$response->message("FTP close response: "
. $ftp->code . " "
. $ftp->message);
}
}
}
elsif (!length($remote_file) || ($ftp->code >= 400 && $ftp->code < 600))
{
# not a plain file, try to list instead
if (length($remote_file) && !$ftp->cwd($remote_file)) {
return HTTP::Response->new(HTTP::Status::RC_NOT_FOUND,
"File '$remote_file' not found"
);
}
# It should now be safe to try to list the directory
my @lsl = $ftp->dir;
# Try to figure out if the user want us to convert the
# directory listing to HTML.
my @variants = (
['html', 0.60, 'text/html'],
['dir', 1.00, 'text/ftp-dir-listing']
);
#$HTTP::Negotiate::DEBUG=1;
my $prefer = HTTP::Negotiate::choose(\@variants, $request);
my $content = '';
if (!defined($prefer)) {
return HTTP::Response->new(HTTP::Status::RC_NOT_ACCEPTABLE,
"Neither HTML nor directory listing wanted");
}
elsif ($prefer eq 'html') {
$response->header('Content-Type' => 'text/html');
$content = "<HEAD><TITLE>File Listing</TITLE>\n";
my $base = $request->uri->clone;
my $path = $base->path;
$base->path("$path/") unless $path =~ m|/$|;
$content .= qq(<BASE HREF="$base">\n</HEAD>\n);
$content .= "<BODY>\n<UL>\n";
for (File::Listing::parse_dir(\@lsl, 'GMT')) {
my ($name, $type, $size, $mtime, $mode) = @$_;
$content .= qq( <LI> <a href="$name">$name</a>);
$content .= " $size bytes" if $type eq 'f';
$content .= "\n";
}
$content .= "</UL></body>\n";
}
else {
$response->header('Content-Type', 'text/ftp-dir-listing');
$content = join("\n", @lsl, '');
}
$response->header('Content-Length', length($content));
if ($method ne 'HEAD') {
$response = $self->collect_once($arg, $response, $content);
}
}
else {
my $res = HTTP::Response->new(HTTP::Status::RC_BAD_REQUEST,
"FTP return code " . $ftp->code);
$res->content_type("text/plain");
$res->content($ftp->message);
return $res;
}
}
elsif ($method eq 'PUT') {
# method must be PUT
unless (length($remote_file)) {
return HTTP::Response->new(HTTP::Status::RC_BAD_REQUEST,
"Must have a file name to PUT to"
);
}
my $data;
if ($data = $ftp->stor($remote_file)) {
my $content = $request->content;
my $bytes = 0;
if (defined $content) {
if (ref($content) eq 'SCALAR') {
$bytes = $data->write($$content, length($$content));
}
elsif (ref($content) eq 'CODE') {
my ($buf, $n);
while (length($buf = &$content)) {
$n = $data->write($buf, length($buf));
last unless $n;
$bytes += $n;
}
}
elsif (!ref($content)) {
if (defined $content && length($content)) {
$bytes = $data->write($content, length($content));
}
}
else {
die "Bad content";
}
}
$data->close;
$response->code(HTTP::Status::RC_CREATED);
$response->header('Content-Type', 'text/plain');
$response->content("$bytes bytes stored as $remote_file on $host\n")
}
else {
my $res = HTTP::Response->new(HTTP::Status::RC_BAD_REQUEST,
"FTP return code " . $ftp->code);
$res->content_type("text/plain");
$res->content($ftp->message);
return $res;
}
}
else {
return HTTP::Response->new(HTTP::Status::RC_BAD_REQUEST,
"Illegal method $method");
}
$response;
}
1;
__END__
# This is what RFC 1738 has to say about FTP access:
# --------------------------------------------------
#
# 3.2. FTP
#
# The FTP URL scheme is used to designate files and directories on
# Internet hosts accessible using the FTP protocol (RFC959).
#
# A FTP URL follow the syntax described in Section 3.1. If :<port> is
# omitted, the port defaults to 21.
#
# 3.2.1. FTP Name and Password
#
# A user name and password may be supplied; they are used in the ftp
# "USER" and "PASS" commands after first making the connection to the
# FTP server. If no user name or password is supplied and one is
# requested by the FTP server, the conventions for "anonymous" FTP are
# to be used, as follows:
#
# The user name "anonymous" is supplied.
#
# The password is supplied as the Internet e-mail address
# of the end user accessing the resource.
#
# If the URL supplies a user name but no password, and the remote
# server requests a password, the program interpreting the FTP URL
# should request one from the user.
#
# 3.2.2. FTP url-path
#
# The url-path of a FTP URL has the following syntax:
#
# <cwd1>/<cwd2>/.../<cwdN>/<name>;type=<typecode>
#
# Where <cwd1> through <cwdN> and <name> are (possibly encoded) strings
# and <typecode> is one of the characters "a", "i", or "d". The part
# ";type=<typecode>" may be omitted. The <cwdx> and <name> parts may be
# empty. The whole url-path may be omitted, including the "/"
# delimiting it from the prefix containing user, password, host, and
# port.
#
# The url-path is interpreted as a series of FTP commands as follows:
#
# Each of the <cwd> elements is to be supplied, sequentially, as the
# argument to a CWD (change working directory) command.
#
# If the typecode is "d", perform a NLST (name list) command with
# <name> as the argument, and interpret the results as a file
# directory listing.
#
# Otherwise, perform a TYPE command with <typecode> as the argument,
# and then access the file whose name is <name> (for example, using
# the RETR command.)
#
# Within a name or CWD component, the characters "/" and ";" are
# reserved and must be encoded. The components are decoded prior to
# their use in the FTP protocol. In particular, if the appropriate FTP
# sequence to access a particular file requires supplying a string
# containing a "/" as an argument to a CWD or RETR command, it is
# necessary to encode each "/".
#
# For example, the URL <URL:ftp://myname@host.dom/%2Fetc/motd> is
# interpreted by FTP-ing to "host.dom", logging in as "myname"
# (prompting for a password if it is asked for), and then executing
# "CWD /etc" and then "RETR motd". This has a different meaning from
# <URL:ftp://myname@host.dom/etc/motd> which would "CWD etc" and then
# "RETR motd"; the initial "CWD" might be executed relative to the
# default directory for "myname". On the other hand,
# <URL:ftp://myname@host.dom//etc/motd>, would "CWD " with a null
# argument, then "CWD etc", and then "RETR motd".
#
# FTP URLs may also be used for other operations; for example, it is
# possible to update a file on a remote file server, or infer
# information about it from the directory listings. The mechanism for
# doing so is not spelled out here.
#
# 3.2.3. FTP Typecode is Optional
#
# The entire ;type=<typecode> part of a FTP URL is optional. If it is
# omitted, the client program interpreting the URL must guess the
# appropriate mode to use. In general, the data content type of a file
# can only be guessed from the name, e.g., from the suffix of the name;
# the appropriate type code to be used for transfer of the file can
# then be deduced from the data content of the file.
#
# 3.2.4 Hierarchy
#
# For some file systems, the "/" used to denote the hierarchical
# structure of the URL corresponds to the delimiter used to construct a
# file name hierarchy, and thus, the filename will look similar to the
# URL path. This does NOT mean that the URL is a Unix filename.
#
# 3.2.5. Optimization
#
# Clients accessing resources via FTP may employ additional heuristics
# to optimize the interaction. For some FTP servers, for example, it
# may be reasonable to keep the control connection open while accessing
# multiple URLs from the same server. However, there is no common
# hierarchical model to the FTP protocol, so if a directory change
# command has been given, it is impossible in general to deduce what
# sequence should be given to navigate to another directory for a
# second retrieval, if the paths are different. The only reliable
# algorithm is to disconnect and reestablish the control connection.

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package LWP::Protocol::gopher;
# Implementation of the gopher protocol (RFC 1436)
#
# This code is based on 'wwwgopher.pl,v 0.10 1994/10/17 18:12:34 shelden'
# which in turn is a vastly modified version of Oscar's http'get()
# dated 28/3/94 in <ftp://cui.unige.ch/PUBLIC/oscar/scripts/http.pl>
# including contributions from Marc van Heyningen and Martijn Koster.
use strict;
our $VERSION = '6.36';
require HTTP::Response;
require HTTP::Status;
require IO::Socket;
require IO::Select;
use base qw(LWP::Protocol);
my %gopher2mimetype = (
'0' => 'text/plain', # 0 file
'1' => 'text/html', # 1 menu
# 2 CSO phone-book server
# 3 Error
'4' => 'application/mac-binhex40', # 4 BinHexed Macintosh file
'5' => 'application/zip', # 5 DOS binary archive of some sort
'6' => 'application/octet-stream', # 6 UNIX uuencoded file.
'7' => 'text/html', # 7 Index-Search server
# 8 telnet session
'9' => 'application/octet-stream', # 9 binary file
'h' => 'text/html', # html
'g' => 'image/gif', # gif
'I' => 'image/*', # some kind of image
);
my %gopher2encoding = (
'6' => 'x_uuencode', # 6 UNIX uuencoded file.
);
sub request
{
my($self, $request, $proxy, $arg, $size, $timeout) = @_;
$size = 4096 unless $size;
# check proxy
if (defined $proxy) {
return HTTP::Response->new(HTTP::Status::RC_BAD_REQUEST,
'You can not proxy through the gopher');
}
my $url = $request->uri;
die "bad scheme" if $url->scheme ne 'gopher';
my $method = $request->method;
unless ($method eq 'GET' || $method eq 'HEAD') {
return HTTP::Response->new(HTTP::Status::RC_BAD_REQUEST,
'Library does not allow method ' .
"$method for 'gopher:' URLs");
}
my $gophertype = $url->gopher_type;
unless (exists $gopher2mimetype{$gophertype}) {
return HTTP::Response->new(HTTP::Status::RC_NOT_IMPLEMENTED,
'Library does not support gophertype ' .
$gophertype);
}
my $response = HTTP::Response->new(HTTP::Status::RC_OK, "OK");
$response->header('Content-type' => $gopher2mimetype{$gophertype}
|| 'text/plain');
$response->header('Content-Encoding' => $gopher2encoding{$gophertype})
if exists $gopher2encoding{$gophertype};
if ($method eq 'HEAD') {
# XXX: don't even try it so we set this header
$response->header('Client-Warning' => 'Client answer only');
return $response;
}
if ($gophertype eq '7' && ! $url->search) {
# the url is the prompt for a gopher search; supply boiler-plate
return $self->collect_once($arg, $response, <<"EOT");
<HEAD>
<TITLE>Gopher Index</TITLE>
<ISINDEX>
</HEAD>
<BODY>
<H1>$url<BR>Gopher Search</H1>
This is a searchable Gopher index.
Use the search function of your browser to enter search terms.
</BODY>
EOT
}
my $host = $url->host;
my $port = $url->port;
my $requestLine = "";
my $selector = $url->selector;
if (defined $selector) {
$requestLine .= $selector;
my $search = $url->search;
if (defined $search) {
$requestLine .= "\t$search";
my $string = $url->string;
if (defined $string) {
$requestLine .= "\t$string";
}
}
}
$requestLine .= "\015\012";
# potential request headers are just ignored
# Ok, lets make the request
my $socket = IO::Socket::INET->new(PeerAddr => $host,
PeerPort => $port,
LocalAddr => $self->{ua}{local_address},
Proto => 'tcp',
Timeout => $timeout);
die "Can't connect to $host:$port" unless $socket;
my $sel = IO::Select->new($socket);
{
die "write timeout" if $timeout && !$sel->can_write($timeout);
my $n = syswrite($socket, $requestLine, length($requestLine));
die $! unless defined($n);
die "short write" if $n != length($requestLine);
}
my $user_arg = $arg;
# must handle menus in a special way since they are to be
# converted to HTML. Undefing $arg ensures that the user does
# not see the data before we get a change to convert it.
$arg = undef if $gophertype eq '1' || $gophertype eq '7';
# collect response
my $buf = '';
$response = $self->collect($arg, $response, sub {
die "read timeout" if $timeout && !$sel->can_read($timeout);
my $n = sysread($socket, $buf, $size);
die $! unless defined($n);
return \$buf;
} );
# Convert menu to HTML and return data to user.
if ($gophertype eq '1' || $gophertype eq '7') {
my $content = menu2html($response->content);
if (defined $user_arg) {
$response = $self->collect_once($user_arg, $response, $content);
}
else {
$response->content($content);
}
}
$response;
}
sub gopher2url
{
my($gophertype, $path, $host, $port) = @_;
my $url;
if ($gophertype eq '8' || $gophertype eq 'T') {
# telnet session
$url = $HTTP::URI_CLASS->new($gophertype eq '8' ? 'telnet:':'tn3270:');
$url->user($path) if defined $path;
}
else {
$path = URI::Escape::uri_escape($path);
$url = $HTTP::URI_CLASS->new("gopher:/$gophertype$path");
}
$url->host($host);
$url->port($port);
$url;
}
sub menu2html {
my($menu) = @_;
$menu =~ tr/\015//d; # remove carriage return
my $tmp = <<"EOT";
<HTML>
<HEAD>
<TITLE>Gopher menu</TITLE>
</HEAD>
<BODY>
<H1>Gopher menu</H1>
EOT
for (split("\n", $menu)) {
last if /^\./;
my($pretty, $path, $host, $port) = split("\t");
$pretty =~ s/^(.)//;
my $type = $1;
my $url = gopher2url($type, $path, $host, $port)->as_string;
$tmp .= qq{<A HREF="$url">$pretty</A><BR>\n};
}
$tmp .= "</BODY>\n</HTML>\n";
$tmp;
}
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package LWP::Protocol::http;
use strict;
our $VERSION = '6.36';
require HTTP::Response;
require HTTP::Status;
require Net::HTTP;
use base qw(LWP::Protocol);
our @EXTRA_SOCK_OPTS;
my $CRLF = "\015\012";
sub _new_socket
{
my($self, $host, $port, $timeout) = @_;
# IPv6 literal IP address should be [bracketed] to remove
# ambiguity between ip address and port number.
if ( ($host =~ /:/) && ($host !~ /^\[/) ) {
$host = "[$host]";
}
local($^W) = 0; # IO::Socket::INET can be noisy
my $sock = $self->socket_class->new(PeerAddr => $host,
PeerPort => $port,
LocalAddr => $self->{ua}{local_address},
Proto => 'tcp',
Timeout => $timeout,
KeepAlive => !!$self->{ua}{conn_cache},
SendTE => $self->{ua}{send_te},
$self->_extra_sock_opts($host, $port),
);
unless ($sock) {
# IO::Socket::INET leaves additional error messages in $@
my $status = "Can't connect to $host:$port";
if ($@ =~ /\bconnect: (.*)/ ||
$@ =~ /\b(Bad hostname)\b/ ||
$@ =~ /\b(nodename nor servname provided, or not known)\b/ ||
$@ =~ /\b(certificate verify failed)\b/ ||
$@ =~ /\b(Crypt-SSLeay can't verify hostnames)\b/
) {
$status .= " ($1)";
} elsif ($@) {
$status .= " ($@)";
}
die "$status\n\n$@";
}
# perl 5.005's IO::Socket does not have the blocking method.
eval { $sock->blocking(0); };
$sock;
}
sub socket_type
{
return "http";
}
sub socket_class
{
my $self = shift;
(ref($self) || $self) . "::Socket";
}
sub _extra_sock_opts # to be overridden by subclass
{
return @EXTRA_SOCK_OPTS;
}
sub _check_sock
{
#my($self, $req, $sock) = @_;
}
sub _get_sock_info
{
my($self, $res, $sock) = @_;
if (defined(my $peerhost = $sock->peerhost)) {
$res->header("Client-Peer" => "$peerhost:" . $sock->peerport);
}
}
sub _fixup_header
{
my($self, $h, $url, $proxy) = @_;
# Extract 'Host' header
my $hhost = $url->authority;
if ($hhost =~ s/^([^\@]*)\@//) { # get rid of potential "user:pass@"
# add authorization header if we need them. HTTP URLs do
# not really support specification of user and password, but
# we allow it.
if (defined($1) && not $h->header('Authorization')) {
require URI::Escape;
$h->authorization_basic(map URI::Escape::uri_unescape($_),
split(":", $1, 2));
}
}
$h->init_header('Host' => $hhost);
if ($proxy && $url->scheme ne 'https') {
# Check the proxy URI's userinfo() for proxy credentials
# export http_proxy="http://proxyuser:proxypass@proxyhost:port".
# For https only the initial CONNECT requests needs authorization.
my $p_auth = $proxy->userinfo();
if(defined $p_auth) {
require URI::Escape;
$h->proxy_authorization_basic(map URI::Escape::uri_unescape($_),
split(":", $p_auth, 2))
}
}
}
sub hlist_remove {
my($hlist, $k) = @_;
$k = lc $k;
for (my $i = @$hlist - 2; $i >= 0; $i -= 2) {
next unless lc($hlist->[$i]) eq $k;
splice(@$hlist, $i, 2);
}
}
sub request
{
my($self, $request, $proxy, $arg, $size, $timeout) = @_;
$size ||= 4096;
# check method
my $method = $request->method;
unless ($method =~ /^[A-Za-z0-9_!\#\$%&\'*+\-.^\`|~]+$/) { # HTTP token
return HTTP::Response->new( HTTP::Status::RC_BAD_REQUEST,
'Library does not allow method ' .
"$method for 'http:' URLs");
}
my $url = $request->uri;
# Proxying SSL with a http proxy needs issues a CONNECT request to build a
# tunnel and then upgrades the tunnel to SSL. But when doing keep-alive the
# https request does not need to be the first request in the connection, so
# we need to distinguish between
# - not yet connected (create socket and ssl upgrade)
# - connected but not inside ssl tunnel (ssl upgrade)
# - inside ssl tunnel to the target - once we are in the tunnel to the
# target we cannot only reuse the tunnel for more https requests with the
# same target
my $ssl_tunnel = $proxy && $url->scheme eq 'https'
&& $url->host.":".$url->port;
my ($host,$port) = $proxy
? ($proxy->host,$proxy->port)
: ($url->host,$url->port);
my $fullpath =
$method eq 'CONNECT' ? $url->host . ":" . $url->port :
$proxy && ! $ssl_tunnel ? $url->as_string :
do {
my $path = $url->path_query;
$path = "/$path" if $path !~m{^/};
$path
};
my $socket;
my $conn_cache = $self->{ua}{conn_cache};
my $cache_key;
if ( $conn_cache ) {
$cache_key = "$host:$port";
# For https we reuse the socket immediately only if it has an established
# tunnel to the target. Otherwise a CONNECT request followed by an SSL
# upgrade need to be done first. The request itself might reuse an
# existing non-ssl connection to the proxy
$cache_key .= "!".$ssl_tunnel if $ssl_tunnel;
if ( $socket = $conn_cache->withdraw($self->socket_type,$cache_key)) {
if ($socket->can_read(0)) {
# if the socket is readable, then either the peer has closed the
# connection or there are some garbage bytes on it. In either
# case we abandon it.
$socket->close;
$socket = undef;
} # else use $socket
else {
$socket->timeout($timeout);
}
}
}
if ( ! $socket && $ssl_tunnel ) {
my $proto_https = LWP::Protocol::create('https',$self->{ua})
or die "no support for scheme https found";
# only if ssl socket class is IO::Socket::SSL we can upgrade
# a plain socket to SSL. In case of Net::SSL we fall back to
# the old version
if ( my $upgrade_sub = $proto_https->can('_upgrade_sock')) {
my $response = $self->request(
HTTP::Request->new('CONNECT',"http://$ssl_tunnel"),
$proxy,
undef,$size,$timeout
);
$response->is_success or die
"establishing SSL tunnel failed: ".$response->status_line;
$socket = $upgrade_sub->($proto_https,
$response->{client_socket},$url)
or die "SSL upgrade failed: $@";
} else {
$socket = $proto_https->_new_socket($url->host,$url->port,$timeout);
}
}
if ( ! $socket ) {
# connect to remote site w/o reusing established socket
$socket = $self->_new_socket($host, $port, $timeout );
}
my $http_version = "";
if (my $proto = $request->protocol) {
if ($proto =~ /^(?:HTTP\/)?(1.\d+)$/) {
$http_version = $1;
$socket->http_version($http_version);
$socket->send_te(0) if $http_version eq "1.0";
}
}
$self->_check_sock($request, $socket);
my @h;
my $request_headers = $request->headers->clone;
$self->_fixup_header($request_headers, $url, $proxy);
$request_headers->scan(sub {
my($k, $v) = @_;
$k =~ s/^://;
$v =~ tr/\n/ /;
push(@h, $k, $v);
});
my $content_ref = $request->content_ref;
$content_ref = $$content_ref if ref($$content_ref);
my $chunked;
my $has_content;
if (ref($content_ref) eq 'CODE') {
my $clen = $request_headers->header('Content-Length');
$has_content++ if $clen;
unless (defined $clen) {
push(@h, "Transfer-Encoding" => "chunked");
$has_content++;
$chunked++;
}
}
else {
# Set (or override) Content-Length header
my $clen = $request_headers->header('Content-Length');
if (defined($$content_ref) && length($$content_ref)) {
$has_content = length($$content_ref);
if (!defined($clen) || $clen ne $has_content) {
if (defined $clen) {
warn "Content-Length header value was wrong, fixed";
hlist_remove(\@h, 'Content-Length');
}
push(@h, 'Content-Length' => $has_content);
}
}
elsif ($clen) {
warn "Content-Length set when there is no content, fixed";
hlist_remove(\@h, 'Content-Length');
}
}
my $write_wait = 0;
$write_wait = 2
if ($request_headers->header("Expect") || "") =~ /100-continue/;
my $req_buf = $socket->format_request($method, $fullpath, @h);
#print "------\n$req_buf\n------\n";
if (!$has_content || $write_wait || $has_content > 8*1024) {
WRITE:
{
# Since this just writes out the header block it should almost
# always succeed to send the whole buffer in a single write call.
my $n = $socket->syswrite($req_buf, length($req_buf));
unless (defined $n) {
redo WRITE if $!{EINTR};
if ($!{EWOULDBLOCK} || $!{EAGAIN}) {
select(undef, undef, undef, 0.1);
redo WRITE;
}
die "write failed: $!";
}
if ($n) {
substr($req_buf, 0, $n, "");
}
else {
select(undef, undef, undef, 0.5);
}
redo WRITE if length $req_buf;
}
}
my($code, $mess, @junk);
my $drop_connection;
if ($has_content) {
my $eof;
my $wbuf;
my $woffset = 0;
INITIAL_READ:
if ($write_wait) {
# skip filling $wbuf when waiting for 100-continue
# because if the response is a redirect or auth required
# the request will be cloned and there is no way
# to reset the input stream
# return here via the label after the 100-continue is read
}
elsif (ref($content_ref) eq 'CODE') {
my $buf = &$content_ref();
$buf = "" unless defined($buf);
$buf = sprintf "%x%s%s%s", length($buf), $CRLF, $buf, $CRLF
if $chunked;
substr($buf, 0, 0) = $req_buf if $req_buf;
$wbuf = \$buf;
}
else {
if ($req_buf) {
my $buf = $req_buf . $$content_ref;
$wbuf = \$buf;
}
else {
$wbuf = $content_ref;
}
$eof = 1;
}
my $fbits = '';
vec($fbits, fileno($socket), 1) = 1;
WRITE:
while ($write_wait || $woffset < length($$wbuf)) {
my $sel_timeout = $timeout;
if ($write_wait) {
$sel_timeout = $write_wait if $write_wait < $sel_timeout;
}
my $time_before;
$time_before = time if $sel_timeout;
my $rbits = $fbits;
my $wbits = $write_wait ? undef : $fbits;
my $sel_timeout_before = $sel_timeout;
SELECT:
{
my $nfound = select($rbits, $wbits, undef, $sel_timeout);
if ($nfound < 0) {
if ($!{EINTR} || $!{EWOULDBLOCK} || $!{EAGAIN}) {
if ($time_before) {
$sel_timeout = $sel_timeout_before - (time - $time_before);
$sel_timeout = 0 if $sel_timeout < 0;
}
redo SELECT;
}
die "select failed: $!";
}
}
if ($write_wait) {
$write_wait -= time - $time_before;
$write_wait = 0 if $write_wait < 0;
}
if (defined($rbits) && $rbits =~ /[^\0]/) {
# readable
my $buf = $socket->_rbuf;
my $n = $socket->sysread($buf, 1024, length($buf));
unless (defined $n) {
die "read failed: $!" unless $!{EINTR} || $!{EWOULDBLOCK} || $!{EAGAIN};
# if we get here the rest of the block will do nothing
# and we will retry the read on the next round
}
elsif ($n == 0) {
# the server closed the connection before we finished
# writing all the request content. No need to write any more.
$drop_connection++;
last WRITE;
}
$socket->_rbuf($buf);
if (!$code && $buf =~ /\015?\012\015?\012/) {
# a whole response header is present, so we can read it without blocking
($code, $mess, @h) = $socket->read_response_headers(laxed => 1,
junk_out => \@junk,
);
if ($code eq "100") {
$write_wait = 0;
undef($code);
goto INITIAL_READ;
}
else {
$drop_connection++;
last WRITE;
# XXX should perhaps try to abort write in a nice way too
}
}
}
if (defined($wbits) && $wbits =~ /[^\0]/) {
my $n = $socket->syswrite($$wbuf, length($$wbuf), $woffset);
unless (defined $n) {
die "write failed: $!" unless $!{EINTR} || $!{EWOULDBLOCK} || $!{EAGAIN};
$n = 0; # will retry write on the next round
}
elsif ($n == 0) {
die "write failed: no bytes written";
}
$woffset += $n;
if (!$eof && $woffset >= length($$wbuf)) {
# need to refill buffer from $content_ref code
my $buf = &$content_ref();
$buf = "" unless defined($buf);
$eof++ unless length($buf);
$buf = sprintf "%x%s%s%s", length($buf), $CRLF, $buf, $CRLF
if $chunked;
$wbuf = \$buf;
$woffset = 0;
}
}
} # WRITE
}
($code, $mess, @h) = $socket->read_response_headers(laxed => 1, junk_out => \@junk)
unless $code;
($code, $mess, @h) = $socket->read_response_headers(laxed => 1, junk_out => \@junk)
if $code eq "100";
my $response = HTTP::Response->new($code, $mess);
my $peer_http_version = $socket->peer_http_version;
$response->protocol("HTTP/$peer_http_version");
{
local $HTTP::Headers::TRANSLATE_UNDERSCORE;
$response->push_header(@h);
}
$response->push_header("Client-Junk" => \@junk) if @junk;
$response->request($request);
$self->_get_sock_info($response, $socket);
if ($method eq "CONNECT") {
$response->{client_socket} = $socket; # so it can be picked up
return $response;
}
if (my @te = $response->remove_header('Transfer-Encoding')) {
$response->push_header('Client-Transfer-Encoding', \@te);
}
$response->push_header('Client-Response-Num', scalar $socket->increment_response_count);
my $complete;
$response = $self->collect($arg, $response, sub {
my $buf = ""; #prevent use of uninitialized value in SSLeay.xs
my $n;
READ:
{
$n = $socket->read_entity_body($buf, $size);
unless (defined $n) {
redo READ if $!{EINTR} || $!{EWOULDBLOCK} || $!{EAGAIN} || $!{ENOTTY};
die "read failed: $!";
}
redo READ if $n == -1;
}
$complete++ if !$n;
return \$buf;
} );
$drop_connection++ unless $complete;
@h = $socket->get_trailers;
if (@h) {
local $HTTP::Headers::TRANSLATE_UNDERSCORE;
$response->push_header(@h);
}
# keep-alive support
unless ($drop_connection) {
if ($cache_key) {
my %connection = map { (lc($_) => 1) }
split(/\s*,\s*/, ($response->header("Connection") || ""));
if (($peer_http_version eq "1.1" && !$connection{close}) ||
$connection{"keep-alive"})
{
$conn_cache->deposit($self->socket_type, $cache_key, $socket);
}
}
}
$response;
}
#-----------------------------------------------------------
package # hide from PAUSE
LWP::Protocol::http::SocketMethods;
sub ping {
my $self = shift;
!$self->can_read(0);
}
sub increment_response_count {
my $self = shift;
return ++${*$self}{'myhttp_response_count'};
}
#-----------------------------------------------------------
package # hide from PAUSE
LWP::Protocol::http::Socket;
use parent -norequire, qw(LWP::Protocol::http::SocketMethods Net::HTTP);
1;

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package LWP::Protocol::loopback;
use strict;
our $VERSION = '6.36';
require HTTP::Response;
use base qw(LWP::Protocol);
sub request {
my($self, $request, $proxy, $arg, $size, $timeout) = @_;
my $response = HTTP::Response->new(200, "OK");
$response->content_type("message/http; msgtype=request");
$response->header("Via", "loopback/1.0 $proxy")
if $proxy;
$response->header("X-Arg", $arg);
$response->header("X-Read-Size", $size);
$response->header("X-Timeout", $timeout);
return $self->collect_once($arg, $response, $request->as_string);
}
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package LWP::Protocol::mailto;
# This module implements the mailto protocol. It is just a simple
# frontend to the Unix sendmail program except on MacOS, where it uses
# Mail::Internet.
require HTTP::Request;
require HTTP::Response;
require HTTP::Status;
use Carp;
use strict;
our $VERSION = '6.36';
use base qw(LWP::Protocol);
our $SENDMAIL;
unless ($SENDMAIL = $ENV{SENDMAIL}) {
for my $sm (qw(/usr/sbin/sendmail
/usr/lib/sendmail
/usr/ucblib/sendmail
))
{
if (-x $sm) {
$SENDMAIL = $sm;
last;
}
}
die "Can't find the 'sendmail' program" unless $SENDMAIL;
}
sub request
{
my($self, $request, $proxy, $arg, $size) = @_;
my ($mail, $addr) if $^O eq "MacOS";
my @text = () if $^O eq "MacOS";
# check proxy
if (defined $proxy)
{
return HTTP::Response->new(HTTP::Status::RC_BAD_REQUEST,
'You can not proxy with mail');
}
# check method
my $method = $request->method;
if ($method ne 'POST') {
return HTTP::Response->new( HTTP::Status::RC_BAD_REQUEST,
'Library does not allow method ' .
"$method for 'mailto:' URLs");
}
# check url
my $url = $request->uri;
my $scheme = $url->scheme;
if ($scheme ne 'mailto') {
return HTTP::Response->new( HTTP::Status::RC_INTERNAL_SERVER_ERROR,
"LWP::Protocol::mailto::request called for '$scheme'");
}
if ($^O eq "MacOS") {
eval {
require Mail::Internet;
};
if($@) {
return HTTP::Response->new( HTTP::Status::RC_INTERNAL_SERVER_ERROR,
"You don't have MailTools installed");
}
unless ($ENV{SMTPHOSTS}) {
return HTTP::Response->new( HTTP::Status::RC_INTERNAL_SERVER_ERROR,
"You don't have SMTPHOSTS defined");
}
}
else {
unless (-x $SENDMAIL) {
return HTTP::Response->new( HTTP::Status::RC_INTERNAL_SERVER_ERROR,
"You don't have $SENDMAIL");
}
}
if ($^O eq "MacOS") {
$mail = Mail::Internet->new or
return HTTP::Response->new( HTTP::Status::RC_INTERNAL_SERVER_ERROR,
"Can't get a Mail::Internet object");
}
else {
open(SENDMAIL, "| $SENDMAIL -oi -t") or
return HTTP::Response->new( HTTP::Status::RC_INTERNAL_SERVER_ERROR,
"Can't run $SENDMAIL: $!");
}
if ($^O eq "MacOS") {
$addr = $url->encoded822addr;
}
else {
$request = $request->clone; # we modify a copy
my @h = $url->headers; # URL headers override those in the request
while (@h) {
my $k = shift @h;
my $v = shift @h;
next unless defined $v;
if (lc($k) eq "body") {
$request->content($v);
}
else {
$request->push_header($k => $v);
}
}
}
if ($^O eq "MacOS") {
$mail->add(To => $addr);
$mail->add(split(/[:\n]/,$request->headers_as_string));
}
else {
print SENDMAIL $request->headers_as_string;
print SENDMAIL "\n";
}
my $content = $request->content;
if (defined $content) {
my $contRef = ref($content) ? $content : \$content;
if (ref($contRef) eq 'SCALAR') {
if ($^O eq "MacOS") {
@text = split("\n",$$contRef);
foreach (@text) {
$_ .= "\n";
}
}
else {
print SENDMAIL $$contRef;
}
}
elsif (ref($contRef) eq 'CODE') {
# Callback provides data
my $d;
if ($^O eq "MacOS") {
my $stuff = "";
while (length($d = &$contRef)) {
$stuff .= $d;
}
@text = split("\n",$stuff);
foreach (@text) {
$_ .= "\n";
}
}
else {
print SENDMAIL $d;
}
}
}
if ($^O eq "MacOS") {
$mail->body(\@text);
unless ($mail->smtpsend) {
return HTTP::Response->new(HTTP::Status::RC_INTERNAL_SERVER_ERROR,
"Mail::Internet->smtpsend unable to send message to <$addr>");
}
}
else {
unless (close(SENDMAIL)) {
my $err = $! ? "$!" : "Exit status $?";
return HTTP::Response->new(HTTP::Status::RC_INTERNAL_SERVER_ERROR,
"$SENDMAIL: $err");
}
}
my $response = HTTP::Response->new(HTTP::Status::RC_ACCEPTED,
"Mail accepted");
$response->header('Content-Type', 'text/plain');
if ($^O eq "MacOS") {
$response->header('Server' => "Mail::Internet $Mail::Internet::VERSION");
$response->content("Message sent to <$addr>\n");
}
else {
$response->header('Server' => $SENDMAIL);
my $to = $request->header("To");
$response->content("Message sent to <$to>\n");
}
return $response;
}
1;

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Git/usr/share/perl5/vendor_perl/LWP/Protocol/nntp.pm Normal file
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package LWP::Protocol::nntp;
# Implementation of the Network News Transfer Protocol (RFC 977)
use base qw(LWP::Protocol);
our $VERSION = '6.36';
require HTTP::Response;
require HTTP::Status;
require Net::NNTP;
use strict;
sub request {
my ($self, $request, $proxy, $arg, $size, $timeout) = @_;
$size = 4096 unless $size;
# Check for proxy
if (defined $proxy) {
return HTTP::Response->new(HTTP::Status::RC_BAD_REQUEST,
'You can not proxy through NNTP');
}
# Check that the scheme is as expected
my $url = $request->uri;
my $scheme = $url->scheme;
unless ($scheme eq 'news' || $scheme eq 'nntp') {
return HTTP::Response->new(HTTP::Status::RC_INTERNAL_SERVER_ERROR,
"LWP::Protocol::nntp::request called for '$scheme'");
}
# check for a valid method
my $method = $request->method;
unless ($method eq 'GET' || $method eq 'HEAD' || $method eq 'POST') {
return HTTP::Response->new(HTTP::Status::RC_BAD_REQUEST,
'Library does not allow method ' . "$method for '$scheme:' URLs");
}
# extract the identifier and check against posting to an article
my $groupart = $url->_group;
my $is_art = $groupart =~ /@/;
if ($is_art && $method eq 'POST') {
return HTTP::Response->new(HTTP::Status::RC_BAD_REQUEST,
"Can't post to an article <$groupart>");
}
my $nntp = Net::NNTP->new(
$url->host,
#Port => 18574,
Timeout => $timeout,
#Debug => 1,
);
die "Can't connect to nntp server" unless $nntp;
# Check the initial welcome message from the NNTP server
if ($nntp->status != 2) {
return HTTP::Response->new(HTTP::Status::RC_SERVICE_UNAVAILABLE,
$nntp->message);
}
my $response = HTTP::Response->new(HTTP::Status::RC_OK, "OK");
my $mess = $nntp->message;
# Try to extract server name from greeting message.
# Don't know if this works well for a large class of servers, but
# this works for our server.
$mess =~ s/\s+ready\b.*//;
$mess =~ s/^\S+\s+//;
$response->header(Server => $mess);
# First we handle posting of articles
if ($method eq 'POST') {
$nntp->quit;
$nntp = undef;
$response->code(HTTP::Status::RC_NOT_IMPLEMENTED);
$response->message("POST not implemented yet");
return $response;
}
# The method must be "GET" or "HEAD" by now
if (!$is_art) {
if (!$nntp->group($groupart)) {
$response->code(HTTP::Status::RC_NOT_FOUND);
$response->message($nntp->message);
}
$nntp->quit;
$nntp = undef;
# HEAD: just check if the group exists
if ($method eq 'GET' && $response->is_success) {
$response->code(HTTP::Status::RC_NOT_IMPLEMENTED);
$response->message("GET newsgroup not implemented yet");
}
return $response;
}
# Send command to server to retrieve an article (or just the headers)
my $get = $method eq 'HEAD' ? "head" : "article";
my $art = $nntp->$get("<$groupart>");
unless ($art) {
$nntp->quit;
$response->code(HTTP::Status::RC_NOT_FOUND);
$response->message($nntp->message);
$nntp = undef;
return $response;
}
# Parse headers
my ($key, $val);
local $_;
while ($_ = shift @$art) {
if (/^\s+$/) {
last; # end of headers
}
elsif (/^(\S+):\s*(.*)/) {
$response->push_header($key, $val) if $key;
($key, $val) = ($1, $2);
}
elsif (/^\s+(.*)/) {
next unless $key;
$val .= $1;
}
else {
unshift(@$art, $_);
last;
}
}
$response->push_header($key, $val) if $key;
# Ensure that there is a Content-Type header
$response->header("Content-Type", "text/plain")
unless $response->header("Content-Type");
# Collect the body
$response = $self->collect_once($arg, $response, join("", @$art)) if @$art;
# Say goodbye to the server
$nntp->quit;
$nntp = undef;
$response;
}
1;

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Git/usr/share/perl5/vendor_perl/LWP/Protocol/nogo.pm Normal file
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package LWP::Protocol::nogo;
# If you want to disable access to a particular scheme, use this
# class and then call
# LWP::Protocol::implementor(that_scheme, 'LWP::Protocol::nogo');
# For then on, attempts to access URLs with that scheme will generate
# a 500 error.
use strict;
our $VERSION = '6.36';
require HTTP::Response;
require HTTP::Status;
use base qw(LWP::Protocol);
sub request {
my($self, $request) = @_;
my $scheme = $request->uri->scheme;
return HTTP::Response->new(
HTTP::Status::RC_INTERNAL_SERVER_ERROR,
"Access to \'$scheme\' URIs has been disabled"
);
}
1;