Messagelib

dkimauthenticationstatusinfoutil.cpp
1/*
2 SPDX-FileCopyrightText: 2019-2024 Laurent Montel <montel@kde.org>
3
4 Code based on ARHParser.jsm from dkim_verifier (Copyright (c) Philippe Lieser)
5 (This software is licensed under the terms of the MIT License.)
6
7 SPDX-License-Identifier: LGPL-2.0-or-later
8*/
9
10#include "dkimauthenticationstatusinfoutil.h"
11
12/*
13// domain-name as specified in Section 3.5 of RFC 6376 [DKIM].
14let domain_name_p = "(?:" + sub_domain_p + "(?:\\." + sub_domain_p + ")+)";
15*/
16QString MessageViewer::DKIMAuthenticationStatusInfoUtil::wsp_p()
17{
18 // WSP as specified in Appendix B.1 of RFC 5234
19 return QStringLiteral("[ \t]");
20}
21
22QString MessageViewer::DKIMAuthenticationStatusInfoUtil::vchar_p()
23{
24 // VCHAR as specified in Appendix B.1 of RFC 5234
25 return QStringLiteral("[!-~]");
26}
27
28QString MessageViewer::DKIMAuthenticationStatusInfoUtil::letDig_p()
29{
30 // Let-dig as specified in Section 4.1.2 of RFC 5321 [SMTP].
31 return QStringLiteral("[A-Za-z0-9]");
32}
33
34QString MessageViewer::DKIMAuthenticationStatusInfoUtil::ldhStr_p()
35{
36 // Ldh-str as specified in Section 4.1.2 of RFC 5321 [SMTP].
37 return QStringLiteral("(?:[A-Za-z0-9-]*%1)").arg(DKIMAuthenticationStatusInfoUtil::letDig_p());
38}
39
40QString MessageViewer::DKIMAuthenticationStatusInfoUtil::keyword_p()
41{
42 // "Keyword" as specified in Section 4.1.2 of RFC 5321 [SMTP].
43 return DKIMAuthenticationStatusInfoUtil::ldhStr_p();
44}
45
46QString MessageViewer::DKIMAuthenticationStatusInfoUtil::subDomain_p()
47{
48 // sub-domain as specified in Section 4.1.2 of RFC 5321 [SMTP].
49 return QStringLiteral("(?:%1%2?)").arg(DKIMAuthenticationStatusInfoUtil::letDig_p(), DKIMAuthenticationStatusInfoUtil::ldhStr_p());
50}
51
52QString MessageViewer::DKIMAuthenticationStatusInfoUtil::obsFws_p()
53{
54 // obs-FWS as specified in Section 4.2 of RFC 5322
55 return QStringLiteral("(?:%1+(?:\r\n%1+)*)").arg(DKIMAuthenticationStatusInfoUtil::wsp_p());
56}
57
58QString MessageViewer::DKIMAuthenticationStatusInfoUtil::quotedPair_p()
59{
60 // quoted-pair as specified in Section 3.2.1 of RFC 5322
61 // Note: obs-qp is not included, so this pattern matches less then specified!
62 return QStringLiteral("(?:\\\\(?:%1|%2))").arg(vchar_p(), wsp_p());
63}
64
65QString MessageViewer::DKIMAuthenticationStatusInfoUtil::fws_p()
66{
67 // FWS as specified in Section 3.2.2 of RFC 5322
68 return QStringLiteral("(?:(?:(?:%1*\r\n)?%1+)|%2)").arg(wsp_p(), obsFws_p());
69}
70
71QString MessageViewer::DKIMAuthenticationStatusInfoUtil::fws_op()
72{
73 return QStringLiteral("%1?").arg(fws_p());
74}
75
76QString MessageViewer::DKIMAuthenticationStatusInfoUtil::ctext_p()
77{
78 // ctext as specified in Section 3.2.2 of RFC 5322
79 return QStringLiteral("[!-'*-[\\]-~]");
80}
81
82QString MessageViewer::DKIMAuthenticationStatusInfoUtil::ccontent_p()
83{
84 // ccontent as specified in Section 3.2.2 of RFC 5322
85 // Note: comment is not included, so this pattern matches less then specified!
86 return QStringLiteral("(?:%1|%2)").arg(ctext_p(), quotedPair_p());
87}
88
89QString MessageViewer::DKIMAuthenticationStatusInfoUtil::comment_p()
90{
91 // comment as specified in Section 3.2.2 of RFC 5322
92 return QStringLiteral("\\((?:%1%2)*%1\\)").arg(fws_op(), ccontent_p());
93}
94
95QString MessageViewer::DKIMAuthenticationStatusInfoUtil::cfws_p()
96{
97 // CFWS as specified in Section 3.2.2 of RFC 5322 [MAIL]
98 return QStringLiteral("(?:(?:(?:%1%2)+%1)|%3)").arg(fws_op(), comment_p(), fws_p());
99}
100
101QString MessageViewer::DKIMAuthenticationStatusInfoUtil::cfws_op()
102{
103 return QStringLiteral("%1?").arg(cfws_p());
104}
105
106QString MessageViewer::DKIMAuthenticationStatusInfoUtil::atext()
107{
108 // atext as specified in Section 3.2.3 of RFC 5322
109 return QStringLiteral("[!#-'*-+/-9=?A-Z^-~-]");
110}
111
112QString MessageViewer::DKIMAuthenticationStatusInfoUtil::dotAtomText_p()
113{
114 // dot-atom-text as specified in Section 3.2.3 of RFC 5322
115 return QStringLiteral("(?:%1+(?:\\.%1+)*)").arg(atext());
116}
117
118QString MessageViewer::DKIMAuthenticationStatusInfoUtil::dotAtom_p()
119{
120 // dot-atom as specified in Section 3.2.3 of RFC 5322
121 // dot-atom = [CFWS] dot-atom-text [CFWS]
122 return QStringLiteral("(?:%1%2%1)").arg(cfws_op(), dotAtomText_p());
123}
124
125QString MessageViewer::DKIMAuthenticationStatusInfoUtil::qtext_p()
126{
127 // qtext as specified in Section 3.2.4 of RFC 5322
128 // Note: obs-qtext is not included, so this pattern matches less then specified!
129 return QStringLiteral("[!#-[\\]-~]");
130}
131
132QString MessageViewer::DKIMAuthenticationStatusInfoUtil::qcontent_p()
133{
134 // qcontent as specified in Section 3.2.4 of RFC 5322
135 return QStringLiteral("(?:%1|%2)").arg(qtext_p(), quotedPair_p());
136}
137
138QString MessageViewer::DKIMAuthenticationStatusInfoUtil::quotedString_p()
139{
140 // quoted-string as specified in Section 3.2.4 of RFC 5322
141 return QStringLiteral("(?:%1\"(?:%2%3)*%2\"%1)").arg(cfws_op(), fws_op(), qcontent_p());
142}
143
144QString MessageViewer::DKIMAuthenticationStatusInfoUtil::quotedString_cp()
145{
146 return QStringLiteral("(?:%1\"((?:%2%3)*)%2\"%1)").arg(cfws_op(), fws_op(), qcontent_p());
147}
148
149QString MessageViewer::DKIMAuthenticationStatusInfoUtil::localPart_p()
150{
151 // local-part as specified in Section 3.4.1 of RFC 5322
152 // Note: obs-local-part is not included, so this pattern matches less then specified!
153 return QStringLiteral("(?:%1|%2))").arg(dotAtom_p(), quotedString_p());
154}
155
156QString MessageViewer::DKIMAuthenticationStatusInfoUtil::token_p()
157{
158 // token as specified in Section 5.1 of RFC 2045.
159 return QStringLiteral("[^ \\x00-\\x1F\\x7F()<>@,;:\\\\\"/[\\]?=]+");
160}
161
162QString MessageViewer::DKIMAuthenticationStatusInfoUtil::value_p()
163{
164 // "value" as specified in Section 5.1 of RFC 2045.
165 return QStringLiteral("(?:%1|%2)").arg(token_p(), quotedString_p());
166}
167
168QString MessageViewer::DKIMAuthenticationStatusInfoUtil::value_cp()
169{
170 return QStringLiteral("(?:(%1)|%2)").arg(token_p(), quotedString_cp());
171}
172
173QString MessageViewer::DKIMAuthenticationStatusInfoUtil::domainName_p()
174{
175 // domain-name as specified in Section 3.5 of RFC 6376 [DKIM].
176 return QStringLiteral("(?:%1(?:\\.%1)+)").arg(subDomain_p());
177}
178
179// Tries to matches a pattern to the beginning of str.
180// Adds CFWS_op to the beginning of pattern.
181// pattern must be followed by string end, ";" or CFWS_p.
182// If match is found, removes it from str.
183QString MessageViewer::DKIMAuthenticationStatusInfoUtil::regexMatchO(const QString &regularExpressionStr)
184{
185 const QString regexp = (QLatin1Char('^') + DKIMAuthenticationStatusInfoUtil::cfws_op() + QStringLiteral("(?:") + regularExpressionStr + QLatin1Char(')')
186 + QStringLiteral("(?:(?:") + DKIMAuthenticationStatusInfoUtil::cfws_op() + QStringLiteral("\r\n$)|(?=;)|(?=")
187 + DKIMAuthenticationStatusInfoUtil::cfws_p() + QStringLiteral("))"));
188 return regexp;
189}
QString arg(Args &&... args) const const
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