cutelyst  3.9.1
A C++ Web Framework built on top of Qt, using the simple approach of Catalyst (Perl) framework.
validatoralphadash.cpp
1 /*
2  * SPDX-FileCopyrightText: (C) 2017-2022 Matthias Fehring <mf@huessenbergnetz.de>
3  * SPDX-License-Identifier: BSD-3-Clause
4  */
5 
6 #include "validatoralphadash_p.h"
7 
8 #include <QRegularExpression>
9 
10 using namespace Cutelyst;
11 
13  bool asciiOnly,
14  const ValidatorMessages &messages,
15  const QString &defValKey)
16  : ValidatorRule(*new ValidatorAlphaDashPrivate(field, asciiOnly, messages, defValKey))
17 {
18 }
19 
21 {
22 }
23 
25 {
26  ValidatorReturnType result;
27 
28  Q_D(const ValidatorAlphaDash);
29 
30  const QString v = value(params);
31  if (!v.isEmpty()) {
32  if (Q_LIKELY(ValidatorAlphaDash::validate(v, d->asciiOnly))) {
33  result.value.setValue(v);
34  } else {
35  qCDebug(C_VALIDATOR,
36  "ValidatorAlphaDash: Validation failed for field %s at %s::%s: %s contains "
37  "characters that are not allowed.",
38  qPrintable(field()),
39  qPrintable(c->controllerName()),
40  qPrintable(c->actionName()),
41  qPrintable(v));
42  result.errorMessage = validationError(c);
43  }
44  } else {
45  defaultValue(c, &result, "ValidatorAlphaDash");
46  }
47 
48  return result;
49 }
50 
51 bool ValidatorAlphaDash::validate(const QString &value, bool asciiOnly)
52 {
53  bool valid = true;
54  if (asciiOnly) {
55  for (const QChar &ch : value) {
56  const ushort &uc = ch.unicode();
57  if (!(((uc > 64) && (uc < 91)) || ((uc > 96) && (uc < 123)) ||
58  ((uc > 47) && (uc < 58)) || (uc == 45) || (uc == 95))) {
59  valid = false;
60  break;
61  }
62  }
63  } else {
64  valid = value.contains(QRegularExpression(QStringLiteral("^[\\pL\\pM\\pN_-]+$")));
65  }
66  return valid;
67 }
68 
70  const QVariant &errorData) const
71 {
72  QString error;
73  Q_UNUSED(errorData)
74  Q_D(const ValidatorAlphaDash);
75  const QString _label = label(c);
76  if (_label.isEmpty()) {
77  if (d->asciiOnly) {
78  error = c->translate(
79  "Cutelyst::ValidatorAlphaDash",
80  "Must only contain alpha-numeric latin characters, dashes and underscores.");
81  } else {
82  error =
83  c->translate("Cutelyst::ValidatorAlphaDash",
84  "Must only contain alpha-numeric characters, dashes and underscores.");
85  }
86  } else {
87  if (d->asciiOnly) {
88  //: %1 will be replaced by the field label
89  error = c->translate("Cutelyst::ValidatorAlphaDash",
90  "The text in the “%1” field must only contain alpha-numeric latin "
91  "characters, dashes and underscores.")
92  .arg(_label);
93  } else {
94  //: %1 will be replaced by the field label
95  error = c->translate("Cutelyst::ValidatorAlphaDash",
96  "The text in the “%1” field must only contain alpha-numeric "
97  "characters, dashes and underscores.")
98  .arg(_label);
99  }
100  }
101  return error;
102 }
QString validationError(Context *c, const QVariant &errorData=QVariant()) const
Returns a descriptive error message if validation failed.
Stores custom error messages and the input field label.
QString genericValidationError(Context *c, const QVariant &errorData=QVariant()) const override
Returns a generic error message.
static bool validate(const QString &value, bool asciiOnly=false)
Returns true if the value only contains alpha-numeric characters, dashes and underscores.
The Cutelyst Context.
Definition: context.h:38
bool isEmpty() const const
QString translate(const char *context, const char *sourceText, const char *disambiguation=nullptr, int n=-1) const
Definition: context.cpp:490
The Cutelyst namespace holds all public Cutelyst API.
Definition: Mainpage.dox:7
Base class for all validator rules.
QString label(Context *c) const
Returns the human readable field label used for generic error messages.
bool contains(QChar ch, Qt::CaseSensitivity cs) const const
QString value(const ParamsMultiMap &params) const
Returns the value of the field from the input params.
ValidatorAlphaDash(const QString &field, bool asciiOnly=false, const ValidatorMessages &messages=ValidatorMessages(), const QString &defValKey=QString())
Constructs a new alpha dash validator.
Checks a value for only alpha-numeric content and dashes and underscores.
QString field() const
Returns the name of the field to validate.
Contains the result of a single input parameter validation.
Definition: validatorrule.h:49
~ValidatorAlphaDash() override
Deconstructs the alpha dash validator.
QString arg(Args &&... args) const const
void defaultValue(Context *c, ValidatorReturnType *result, const char *validatorName) const
I a defValKey has been set in the constructor, this will try to get the default value from the stash ...
void setValue(QVariant &&value)