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1#***************************************************************************
2#                                  _   _ ____  _
3#  Project                     ___| | | |  _ \| |
4#                             / __| | | | |_) | |
5#                            | (__| |_| |  _ <| |___
6#                             \___|\___/|_| \_\_____|
7#
8# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
9#
10# This software is licensed as described in the file COPYING, which
11# you should have received as part of this distribution. The terms
12# are also available at https://curl.se/docs/copyright.html.
13#
14# You may opt to use, copy, modify, merge, publish, distribute and/or sell
15# copies of the Software, and permit persons to whom the Software is
16# furnished to do so, under the terms of the COPYING file.
17#
18# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19# KIND, either express or implied.
20#
21# SPDX-License-Identifier: curl
22#
23#***************************************************************************
24
25package serverhelp;
26
27use strict;
28use warnings;
29use Exporter;
30
31
32#***************************************************************************
33# Global symbols allowed without explicit package name
34#
35use vars qw(
36    @ISA
37    @EXPORT_OK
38    );
39
40
41#***************************************************************************
42# Inherit Exporter's capabilities
43#
44@ISA = qw(Exporter);
45
46
47#***************************************************************************
48# Global symbols this module will export upon request
49#
50@EXPORT_OK = qw(
51    serverfactors
52    servername_id
53    servername_str
54    servername_canon
55    server_pidfilename
56    server_portfilename
57    server_logfilename
58    server_cmdfilename
59    server_inputfilename
60    server_outputfilename
61    mainsockf_pidfilename
62    mainsockf_logfilename
63    datasockf_pidfilename
64    datasockf_logfilename
65    );
66
67
68#***************************************************************************
69# Just for convenience, test harness uses 'https' and 'httptls' literals as
70# values for 'proto' variable in order to differentiate different servers.
71# 'https' literal is used for stunnel based https test servers, and 'httptls'
72# is used for non-stunnel https test servers.
73
74
75#***************************************************************************
76# Return server characterization factors given a server id string.
77#
78sub serverfactors {
79    my $server = $_[0];
80    my $proto;
81    my $ipvnum;
82    my $idnum;
83
84    if($server =~
85        /^((ftp|http|imap|pop3|smtp|http-pipe)s?)(\d*)(-ipv6|)$/) {
86        $proto  = $1;
87        $idnum  = ($3 && ($3 > 1)) ? $3 : 1;
88        $ipvnum = ($4 && ($4 =~ /6$/)) ? 6 : 4;
89    }
90    elsif($server =~
91        /^(tftp|sftp|socks|ssh|rtsp|gopher|httptls)(\d*)(-ipv6|)$/) {
92        $proto  = $1;
93        $idnum  = ($2 && ($2 > 1)) ? $2 : 1;
94        $ipvnum = ($3 && ($3 =~ /6$/)) ? 6 : 4;
95    }
96    else {
97        die "invalid server id: '$server'"
98    }
99    return($proto, $ipvnum, $idnum);
100}
101
102
103#***************************************************************************
104# Return server name string formatted for presentation purposes
105#
106sub servername_str {
107    my ($proto, $ipver, $idnum) = @_;
108
109    $proto = uc($proto) if($proto);
110    die "unsupported protocol: '$proto'" unless($proto &&
111        ($proto =~ /^(((FTP|HTTP|HTTP\/2|HTTP\/3|IMAP|POP3|GOPHER|SMTP|HTTP-PIPE)S?)|(TFTP|SFTP|SOCKS|SSH|RTSP|HTTPTLS|DICT|SMB|SMBS|TELNET|MQTT))$/));
112
113    $ipver = (not $ipver) ? 'ipv4' : lc($ipver);
114    die "unsupported IP version: '$ipver'" unless($ipver &&
115        ($ipver =~ /^(4|6|ipv4|ipv6|-ipv4|-ipv6|unix)$/));
116    $ipver = ($ipver =~ /6$/) ? '-IPv6' : (($ipver =~ /unix$/) ? '-unix' : '');
117
118    $idnum = 1 if(not $idnum);
119    die "unsupported ID number: '$idnum'" unless($idnum &&
120        ($idnum =~ /^(\d+)$/));
121    $idnum = '' unless($idnum > 1);
122
123    return "${proto}${idnum}${ipver}";
124}
125
126
127#***************************************************************************
128# Return server name string formatted for identification purposes
129#
130sub servername_id {
131    my ($proto, $ipver, $idnum) = @_;
132    return lc(servername_str($proto, $ipver, $idnum));
133}
134
135
136#***************************************************************************
137# Return server name string formatted for file name purposes
138#
139sub servername_canon {
140    my ($proto, $ipver, $idnum) = @_;
141    my $string = lc(servername_str($proto, $ipver, $idnum));
142    $string =~ tr/-/_/;
143    $string =~ s/\//_v/;
144    return $string;
145}
146
147
148#***************************************************************************
149# Return file name for server pid file.
150#
151sub server_pidfilename {
152    my ($proto, $ipver, $idnum) = @_;
153    my $trailer = '_server.pid';
154    return '.'. servername_canon($proto, $ipver, $idnum) ."$trailer";
155}
156
157#***************************************************************************
158# Return file name for server port file.
159#
160sub server_portfilename {
161    my ($proto, $ipver, $idnum) = @_;
162    my $trailer = '_server.port';
163    return '.'. servername_canon($proto, $ipver, $idnum) ."$trailer";
164}
165
166
167#***************************************************************************
168# Return file name for server log file.
169#
170sub server_logfilename {
171    my ($logdir, $proto, $ipver, $idnum) = @_;
172    my $trailer = '_server.log';
173    $trailer = '_stunnel.log' if(lc($proto) =~ /^(ftp|http|imap|pop3|smtp)s$/);
174    return "${logdir}/". servername_canon($proto, $ipver, $idnum) ."$trailer";
175}
176
177
178#***************************************************************************
179# Return file name for server commands file.
180#
181sub server_cmdfilename {
182    my ($logdir, $proto, $ipver, $idnum) = @_;
183    my $trailer = '_server.cmd';
184    return "${logdir}/". servername_canon($proto, $ipver, $idnum) ."$trailer";
185}
186
187
188#***************************************************************************
189# Return file name for server input file.
190#
191sub server_inputfilename {
192    my ($logdir, $proto, $ipver, $idnum) = @_;
193    my $trailer = '_server.input';
194    return "${logdir}/". servername_canon($proto, $ipver, $idnum) ."$trailer";
195}
196
197
198#***************************************************************************
199# Return file name for server output file.
200#
201sub server_outputfilename {
202    my ($logdir, $proto, $ipver, $idnum) = @_;
203    my $trailer = '_server.output';
204    return "${logdir}/". servername_canon($proto, $ipver, $idnum) ."$trailer";
205}
206
207
208#***************************************************************************
209# Return file name for main or primary sockfilter pid file.
210#
211sub mainsockf_pidfilename {
212    my ($proto, $ipver, $idnum) = @_;
213    die "unsupported protocol: '$proto'" unless($proto &&
214        (lc($proto) =~ /^(ftp|imap|pop3|smtp)s?$/));
215    my $trailer = (lc($proto) =~ /^ftps?$/) ? '_sockctrl.pid':'_sockfilt.pid';
216    return '.'. servername_canon($proto, $ipver, $idnum) ."$trailer";
217}
218
219
220#***************************************************************************
221# Return file name for main or primary sockfilter log file.
222#
223sub mainsockf_logfilename {
224    my ($logdir, $proto, $ipver, $idnum) = @_;
225    die "unsupported protocol: '$proto'" unless($proto &&
226        (lc($proto) =~ /^(ftp|imap|pop3|smtp)s?$/));
227    my $trailer = (lc($proto) =~ /^ftps?$/) ? '_sockctrl.log':'_sockfilt.log';
228    return "${logdir}/". servername_canon($proto, $ipver, $idnum) ."$trailer";
229}
230
231
232#***************************************************************************
233# Return file name for data or secondary sockfilter pid file.
234#
235sub datasockf_pidfilename {
236    my ($proto, $ipver, $idnum) = @_;
237    die "unsupported protocol: '$proto'" unless($proto &&
238        (lc($proto) =~ /^ftps?$/));
239    my $trailer = '_sockdata.pid';
240    return '.'. servername_canon($proto, $ipver, $idnum) ."$trailer";
241}
242
243
244#***************************************************************************
245# Return file name for data or secondary sockfilter log file.
246#
247sub datasockf_logfilename {
248    my ($logdir, $proto, $ipver, $idnum) = @_;
249    die "unsupported protocol: '$proto'" unless($proto &&
250        (lc($proto) =~ /^ftps?$/));
251    my $trailer = '_sockdata.log';
252    return "${logdir}/". servername_canon($proto, $ipver, $idnum) ."$trailer";
253}
254
255
256#***************************************************************************
257# End of library
2581;
259