1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
# Copyright (C) 2020-2021 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
# cf. RFC 5092, which the `URI' package doesn't support
#
# This depends only on the documented public API of the `URI' dist,
# not on internal `_'-prefixed subclasses such as `URI::_server'
#
# <https://metacpan.org/pod/URI::imap> exists, but it appears
# unmaintained, isn't in common distros, nor does it support
# ';FOO=BAR' parameters such as UIDVALIDITY
#
# RFC 2192 also describes ";TYPE=<list_type>"
package PublicInbox::URIimap;
use strict;
use v5.10.1;
use URI::Split qw(uri_split uri_join); # part of URI
use URI::Escape qw(uri_unescape uri_escape);
use overload '""' => \&as_string;
my %default_ports = (imap => 143, imaps => 993);
# for enc-auth-type and enc-user in RFC 5092
my $achar = qr/[A-Za-z0-9%\-_\.\!\$'\(\)\+\,\&\=\*]+/;
sub new {
my ($class, $url) = @_;
$url =~ m!\Aimaps?://! ? bless \$url, $class : undef;
}
sub canonical {
my ($self) = @_;
# no #frag in RFC 5092 from what I can tell
my ($scheme, $auth, $path, $query, $_frag) = uri_split($$self);
$path =~ s!\A/+!/!; # excessive leading slash
# upper-case uidvalidity= and uid= parameter names
$path =~ s/;([^=]+)=([^;]*)/;\U$1\E=$2/g;
# lowercase the host portion
$auth =~ s#\A(.*@)?(.*?)(?::([0-9]+))?\z#
my $ret = ($1//'').lc($2);
if (defined(my $port = $3)) {
if ($default_ports{lc($scheme)} != $port) {
$ret .= ":$port";
}
}
$ret#ei;
ref($self)->new(uri_join(lc($scheme), $auth, $path, $query));
}
sub host {
my ($self) = @_;
my (undef, $auth) = uri_split($$self);
$auth =~ s!\A.*?@!!;
$auth =~ s!:[0-9]+\z!!;
$auth =~ s!\A\[(.*)\]\z!$1!; # IPv6
uri_unescape($auth);
}
# unescaped, may be used for globbing
sub path {
my ($self) = @_;
my (undef, undef, $path) = uri_split($$self);
$path =~ s!\A/+!!;
$path =~ s!/?;.*\z!!; # [;UIDVALIDITY=nz-number]/;UID=nz-number
$path eq '' ? undef : $path;
}
sub mailbox {
my ($self) = @_;
my $path = path($self);
defined($path) ? uri_unescape($path) : undef;
}
sub uidvalidity { # read/write
my ($self, $val) = @_;
my ($scheme, $auth, $path, $query, $frag) = uri_split($$self);
if (defined $val) {
if ($path =~ s!;UIDVALIDITY=[^;/]*\b!;UIDVALIDITY=$val!i or
$path =~ s!/;!;UIDVALIDITY=$val/;!i) {
# s// already changed it
} else { # both s// failed, so just append
$path .= ";UIDVALIDITY=$val";
}
$$self = uri_join($scheme, $auth, $path, $query, $frag);
}
$path =~ s!\A/+!!;
$path =~ m!\A[^;]+;UIDVALIDITY=([1-9][0-9]*)\b!i ?
($1 + 0) : undef;
}
sub uid {
my ($self, $val) = @_;
my ($scheme, $auth, $path, $query, $frag) = uri_split($$self);
if (scalar(@_) == 2) {
if (!defined $val) {
$path =~ s!/;UID=[^;/]*\b!!i;
} else {
$path =~ s!/;UID=[^;/]*\b!/;UID=$val!i or
$path .= "/;UID=$val";
}
$$self = uri_join($scheme, $auth, $path, $query);
}
$path =~ m!\A/[^;]+(?:;UIDVALIDITY=[^;/]+)?/;UID=([1-9][0-9]*)\b!i ?
($1 + 0) : undef;
}
sub port {
my ($self) = @_;
my ($scheme, $auth) = uri_split($$self);
$auth =~ /:([0-9]+)\z/ ? $1 + 0 : $default_ports{lc($scheme)};
}
sub authority {
my ($self) = @_;
my (undef, $auth) = uri_split($$self);
$auth
}
sub user {
my ($self, $val) = @_;
my ($scheme, $auth, $path, $query) = uri_split($$self);
my $at_host_port;
$auth =~ s/(@.*)\z// and $at_host_port = $1; # stash host:port for now
if (scalar(@_) == 2) { # set, this clobbers password, too
if (defined $val) {
my $uval = uri_escape($val);
if (defined($at_host_port)) {
$auth =~ s!\A.*?(;AUTH=$achar).*!$uval$1!ix
or $auth = $uval;
} else {
substr($auth, 0, 0) = "$uval@";
}
} elsif (defined($at_host_port)) { # clobber
$auth =~ s!\A.*?(;AUTH=$achar).*!$1!i or $auth = '';
if ($at_host_port && $auth eq '') {
$at_host_port =~ s/\A\@//;
}
}
$at_host_port //= '';
$$self = uri_join($scheme, $auth.$at_host_port, $path, $query);
$val;
} else { # read-only
$at_host_port // return undef; # explicit undef for scalar
$auth =~ s/;.*\z//; # drop ;AUTH=...
$auth =~ s/:.*\z//; # drop password
$auth eq '' ? undef : uri_unescape($auth);
}
}
sub password {
my ($self) = @_;
my (undef, $auth) = uri_split($$self);
$auth =~ s/@.*\z// or return undef; # drop host:port
$auth =~ s/;.*\z//; # drop ;AUTH=...
$auth =~ s/\A[^:]+:// ? uri_unescape($auth) : undef; # drop ->user
}
sub auth {
my ($self, $val) = @_;
my ($scheme, $auth, $path, $query) = uri_split($$self);
my $at_host_port;
$auth =~ s/(@.*)\z// and $at_host_port = $1; # stash host:port for now
if (scalar(@_) == 2) {
if (defined $val) {
my $uval = uri_escape($val);
if ($auth =~ s!;AUTH=$achar!;AUTH=$uval!ix) {
# replaced existing
} elsif (defined($at_host_port)) {
$auth .= ";AUTH=$uval";
} else {
substr($auth, 0, 0) = ";AUTH=$uval@";
}
} else { # clobber
$auth =~ s!;AUTH=$achar!!i;
if ($at_host_port && $auth eq '') {
$at_host_port =~ s/\A\@//;
}
}
$at_host_port //= '';
$$self = uri_join($scheme, $auth.$at_host_port, $path, $query);
$val;
} else { # read-only
$auth =~ /;AUTH=(.+)\z/i ? uri_unescape($1) : undef;
}
}
sub scheme {
my ($self) = @_;
(uri_split($$self))[0];
}
sub as_string { ${$_[0]} }
sub clone { ref($_[0])->new(as_string($_[0])) }
1;
|
