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Edit File: CA.pl

#!/usr/bin/perl
# Copyright 2000-2025 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the Apache License 2.0 (the "License").  You may not use
# this file except in compliance with the License.  You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html

#
# Wrapper around the ca to make it easier to use
#
# WARNING: do not edit!
# Generated by Makefile from ../apps/CA.pl.in

use strict;
use warnings;

my $verbose = 1;
my @OPENSSL_CMDS = ("req", "ca", "pkcs12", "x509", "verify");

my $openssl = $ENV{'OPENSSL'} // "openssl";
$ENV{'OPENSSL'} = $openssl;
my @openssl = split_val($openssl);

my $OPENSSL_CONFIG = $ENV{"OPENSSL_CONFIG"} // "";
my @OPENSSL_CONFIG = split_val($OPENSSL_CONFIG);

# Command invocations.
my @REQ = (@openssl, "req", @OPENSSL_CONFIG);
my @CA = (@openssl, "ca", @OPENSSL_CONFIG);
my @VERIFY = (@openssl, "verify");
my @X509 = (@openssl, "x509");
my @PKCS12 = (@openssl, "pkcs12");

# Default values for various configuration settings.
my $CATOP = "./demoCA";
my $CAKEY = "cakey.pem";
my $CAREQ = "careq.pem";
my $CACERT = "cacert.pem";
my $CACRL = "crl.pem";
my @DAYS = qw(-days 365);
my @CADAYS = qw(-days 1095);	# 3 years
my @EXTENSIONS = qw(-extensions v3_ca);
my @POLICY = qw(-policy policy_anything);
my $NEWKEY = "newkey.pem";
my $NEWREQ = "newreq.pem";
my $NEWCERT = "newcert.pem";
my $NEWP12 = "newcert.p12";

# Commandline parsing
my %EXTRA;
my $WHAT = shift @ARGV // "";
@ARGV = parse_extra(@ARGV);
my $RET = 0;

sub split_val {
    return split_val_win32(@_) if ($^O eq 'MSWin32');
    my ($val) = @_;
    my (@ret, @frag);

# Skip leading whitespace
    $val =~ m{\A[ \t]*}ogc;

# Unix shell-compatible split
    #
    # Handles backslash escapes outside quotes and
    # in double-quoted strings.  Parameter and
    # command-substitution is silently ignored.
    # Bare newlines outside quotes and (trailing) backslashes are disallowed.

while (1) {
        last if (pos($val) == length($val));

# The first char is never a SPACE or TAB.  Possible matches are:
        # 1. Ordinary string fragment
        # 2. Single-quoted string
        # 3. Double-quoted string
        # 4. Backslash escape
        # 5. Bare backlash or newline (rejected)
        #
        if ($val =~ m{\G([^'" \t\n\\]+)}ogc) {
            # Ordinary string
            push @frag, $1;
        } elsif ($val =~ m{\G'([^']*)'}ogc) {
            # Single-quoted string
            push @frag, $1;
        } elsif ($val =~ m{\G"}ogc) {
            # Double-quoted string
            push @frag, "";
            while (1) {
                last if ($val =~ m{\G"}ogc);
                if ($val =~ m{\G([^"\\]+)}ogcs) {
                    # literals
                    push @frag, $1;
                } elsif ($val =~ m{\G.(["\`\$\\])}ogc) {
                    # backslash-escaped special
                    push @frag, $1;
                } elsif ($val =~ m{\G.(.)}ogcs) {
                    # backslashed non-special
                    push @frag, "\\$1" unless $1 eq "\n";
                } else {
                    die sprintf("Malformed quoted string: %s\n", $val);
                }
            }
        } elsif ($val =~ m{\G\\(.)}ogc) {
            # Backslash is unconditional escape outside quoted strings
            push @frag, $1 unless $1 eq "\n";
        } else {
            die sprintf("Bare backslash or newline in: '%s'\n", $val);
        }
        # Done if at SPACE, TAB or end, otherwise continue current fragment
        #
        next unless ($val =~ m{\G(?:[ \t]+|\z)}ogcs);
        push @ret, join("", splice(@frag)) if (@frag > 0);
    }
    # Handle final fragment
    push @ret, join("", splice(@frag)) if (@frag > 0);
    return @ret;
}

sub split_val_win32 {
    my ($val) = @_;
    my (@ret, @frag);

# Skip leading whitespace
    $val =~ m{\A[ \t]*}ogc;

# Windows-compatible split
    # See: "Parsing C++ command-line arguments" in:
    # https://learn.microsoft.com/en-us/cpp/cpp/main-function-command-line-args?view=msvc-170
    #
    # Backslashes are special only when followed by a double-quote
    # Pairs of double-quotes make a single double-quote.
    # Closing double-quotes may be omitted.

while (1) {
        last if (pos($val) == length($val));

# The first char is never a SPACE or TAB.
        # 1. Ordinary string fragment
        # 2. Double-quoted string
        # 3. Backslashes preceding a double-quote
        # 4. Literal backslashes
        # 5. Bare newline (rejected)
        #
        if ($val =~ m{\G([^" \t\n\\]+)}ogc) {
            # Ordinary string
            push @frag, $1;
        } elsif ($val =~ m{\G"}ogc) {
            # Double-quoted string
            push @frag, "";
            while (1) {
                if ($val =~ m{\G("+)}ogc) {
                    # Two double-quotes make one literal double-quote
                    my $l = length($1);
                    push @frag, q{"} x int($l/2) if ($l > 1);
                    next if ($l % 2 == 0);
                    last;
                }
                if ($val =~ m{\G([^"\\]+)}ogc) {
                    push @frag, $1;
                } elsif ($val =~ m{\G((?>[\\]+))(?=")}ogc) {
                    # Backslashes before a double-quote are escapes
                    my $l = length($1);
                    push @frag, q{\\} x int($l / 2);
                    if ($l % 2 == 1) {
                        ++pos($val);
                        push @frag, q{"};
                    }
                } elsif ($val =~ m{\G((?:(?>[\\]+)[^"\\]+)+)}ogc) {
                    # Backslashes not before a double-quote are not special
                    push @frag, $1;
                } else {
                    # Tolerate missing closing double-quote
                    last;
                }
            }
        } elsif ($val =~ m{\G((?>[\\]+))(?=")}ogc) {
            my $l = length($1);
            push @frag, q{\\} x int($l / 2);
            if ($l % 2 == 1) {
                ++pos($val);
                push @frag, q{"};
            }
        } elsif ($val =~ m{\G([\\]+)}ogc) {
            # Backslashes not before a double-quote are not special
            push @frag, $1;
        } else {
            die sprintf("Bare newline in: '%s'\n", $val);
        }
        # Done if at SPACE, TAB or end, otherwise continue current fragment
        #
        next unless ($val =~ m{\G(?:[ \t]+|\z)}ogcs);
        push @ret, join("", splice(@frag)) if (@frag > 0);
    }
    # Handle final fragment
    push @ret, join("", splice(@frag)) if (@frag);
    return @ret;
}

# Split out "-extra-CMD value", and return new |@ARGV|. Fill in
# |EXTRA{CMD}| with list of values.
sub parse_extra
{
    my @args;
    foreach ( @OPENSSL_CMDS ) {
        $EXTRA{$_} = [];
    }
    while (@_) {
        my $arg = shift(@_);
        if ( $arg !~ m{^-extra-(\w+)$} ) {
            push @args, split_val($arg);
            next;
        }
        $arg = $1;
        die "Unknown \"-extra-${arg}\" option, exiting\n"
            unless grep { $arg eq $_ } @OPENSSL_CMDS;
        die "Missing \"-extra-${arg}\" option value, exiting\n"
            unless (@_ > 0);
        push @{$EXTRA{$arg}}, split_val(shift(@_));
    }
    return @args;
}

# See if reason for a CRL entry is valid; exit if not.
sub crl_reason_ok
{
    my $r = shift;

if ($r eq 'unspecified' || $r eq 'keyCompromise'
        || $r eq 'CACompromise' || $r eq 'affiliationChanged'
        || $r eq 'superseded' || $r eq 'cessationOfOperation'
        || $r eq 'certificateHold' || $r eq 'removeFromCRL') {
        return 1;
    }
    print STDERR "Invalid CRL reason; must be one of:\n";
    print STDERR "    unspecified, keyCompromise, CACompromise,\n";
    print STDERR "    affiliationChanged, superseded, cessationOfOperation\n";
    print STDERR "    certificateHold, removeFromCRL";
    exit 1;
}

# Copy a PEM-format file; return like exit status (zero means ok)
sub copy_pemfile
{
    my ($infile, $outfile, $bound) = @_;
    my $found = 0;

open IN, $infile || die "Cannot open $infile, $!";
    open OUT, ">$outfile" || die "Cannot write to $outfile, $!";
    while (<IN>) {
        $found = 1 if /^-----BEGIN.*$bound/;
        print OUT $_ if $found;
        $found = 2, last if /^-----END.*$bound/;
    }
    close IN;
    close OUT;
    return $found == 2 ? 0 : 1;
}

# Wrapper around system; useful for debugging.  Returns just the exit status
sub run
{
    my ($cmd, @args) = @_;
    print "====\n$cmd @args\n" if $verbose;
    my $status = system {$cmd} $cmd, @args;
    print "==> $status\n====\n" if $verbose;
    return $status >> 8;
}

if ( $WHAT =~ /^(-\?|-h|-help)$/ ) {
    print STDERR <<EOF;
Usage:
    CA.pl -newcert | -newreq | -newreq-nodes | -xsign | -sign | -signCA | -signcert | -crl | -newca [-extra-cmd parameter]
    CA.pl -pkcs12 [certname]
    CA.pl -verify certfile ...
    CA.pl -revoke certfile [reason]
EOF
    exit 0;
}

if ($WHAT eq '-newcert' ) {
    # create a certificate
    $RET = run(@REQ, qw(-new -x509 -keyout), $NEWKEY, "-out", $NEWCERT, @DAYS, @{$EXTRA{req}});
    print "Cert is in $NEWCERT, private key is in $NEWKEY\n" if $RET == 0;
} elsif ($WHAT eq '-precert' ) {
    # create a pre-certificate
    $RET = run(@REQ, qw(-x509 -precert -keyout), $NEWKEY, "-out", $NEWCERT, @DAYS, @{$EXTRA{req}});
    print "Pre-cert is in $NEWCERT, private key is in $NEWKEY\n" if $RET == 0;
} elsif ($WHAT =~ /^\-newreq(\-nodes)?$/ ) {
    # create a certificate request
    $RET = run(@REQ, "-new", (defined $1 ? ($1,) : ()), "-keyout", $NEWKEY, "-out", $NEWREQ, @{$EXTRA{req}});
    print "Request is in $NEWREQ, private key is in $NEWKEY\n" if $RET == 0;
} elsif ($WHAT eq '-newca' ) {
    # create the directory hierarchy
    my @dirs = ( "${CATOP}", "${CATOP}/certs", "${CATOP}/crl",
                "${CATOP}/newcerts", "${CATOP}/private" );
    die "${CATOP}/index.txt exists.\nRemove old sub-tree to proceed,"
        if -f "${CATOP}/index.txt";
    die "${CATOP}/serial exists.\nRemove old sub-tree to proceed,"
        if -f "${CATOP}/serial";
    foreach my $d ( @dirs ) {
        if ( -d $d ) {
            warn "Directory $d exists" if -d $d;
        } else {
            mkdir $d or die "Can't mkdir $d, $!";
        }
    }

open OUT, ">${CATOP}/index.txt";
    close OUT;
    open OUT, ">${CATOP}/crlnumber";
    print OUT "01\n";
    close OUT;
    # ask user for existing CA certificate
    print "CA certificate filename (or enter to create)\n";
    my $FILE;
    $FILE = "" unless defined($FILE = <STDIN>);
    $FILE =~ s{\R$}{};
    if ($FILE ne "") {
        copy_pemfile($FILE,"${CATOP}/private/$CAKEY", "PRIVATE");
        copy_pemfile($FILE,"${CATOP}/$CACERT", "CERTIFICATE");
    } else {
        print "Making CA certificate ...\n";
        $RET = run(@REQ, qw(-new -keyout), "${CATOP}/private/$CAKEY",
                   "-out", "${CATOP}/$CAREQ", @{$EXTRA{req}});
        $RET = run(@CA, qw(-create_serial -out), "${CATOP}/$CACERT", @CADAYS,
                   qw(-batch -keyfile), "${CATOP}/private/$CAKEY", "-selfsign",
                   @EXTENSIONS, "-infiles", "${CATOP}/$CAREQ", @{$EXTRA{ca}})
            if $RET == 0;
        print "CA certificate is in ${CATOP}/$CACERT\n" if $RET == 0;
    }
} elsif ($WHAT eq '-pkcs12' ) {
    my $cname = $ARGV[0];
    $cname = "My Certificate" unless defined $cname;
    $RET = run(@PKCS12, "-in", $NEWCERT, "-inkey", $NEWKEY,
               "-certfile", "${CATOP}/$CACERT", "-out", $NEWP12,
               qw(-export -name), $cname, @{$EXTRA{pkcs12}});
    print "PKCS#12 file is in $NEWP12\n" if $RET == 0;
} elsif ($WHAT eq '-xsign' ) {
    $RET = run(@CA, @POLICY, "-infiles", $NEWREQ, @{$EXTRA{ca}});
} elsif ($WHAT eq '-sign' ) {
    $RET = run(@CA, @POLICY, "-out", $NEWCERT,
               "-infiles", $NEWREQ, @{$EXTRA{ca}});
    print "Signed certificate is in $NEWCERT\n" if $RET == 0;
} elsif ($WHAT eq '-signCA' ) {
    $RET = run(@CA, @POLICY, "-out", $NEWCERT, @EXTENSIONS,
               "-infiles", $NEWREQ, @{$EXTRA{ca}});
    print "Signed CA certificate is in $NEWCERT\n" if $RET == 0;
} elsif ($WHAT eq '-signcert' ) {
    $RET = run(@X509, qw(-x509toreq -in), $NEWREQ, "-signkey", $NEWREQ,
               qw(-out tmp.pem), @{$EXTRA{x509}});
    $RET = run(@CA, @POLICY, "-out", $NEWCERT,
               qw(-infiles tmp.pem), @{$EXTRA{ca}}) if $RET == 0;
    print "Signed certificate is in $NEWCERT\n" if $RET == 0;
} elsif ($WHAT eq '-verify' ) {
    my @files = @ARGV ? @ARGV : ( $NEWCERT );
    foreach my $file (@files) {
        my $status = run(@VERIFY, "-CAfile", "${CATOP}/$CACERT", $file, @{$EXTRA{verify}});
        $RET = $status if $status != 0;
    }
} elsif ($WHAT eq '-crl' ) {
    $RET = run(@CA, qw(-gencrl -out), "${CATOP}/crl/$CACRL", @{$EXTRA{ca}});
    print "Generated CRL is in ${CATOP}/crl/$CACRL\n" if $RET == 0;
} elsif ($WHAT eq '-revoke' ) {
    my $cname = $ARGV[0];
    if (!defined $cname) {
        print "Certificate filename is required; reason optional.\n";
        exit 1;
    }
    my @reason;
    @reason = ("-crl_reason", $ARGV[1])
        if defined $ARGV[1] && crl_reason_ok($ARGV[1]);
    $RET = run(@CA, "-revoke", $cname, @reason, @{$EXTRA{ca}});
} else {
    print STDERR "Unknown arg \"$WHAT\"\n";
    print STDERR "Use -help for help.\n";
    exit 1;
}

exit $RET;

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