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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the QtNetwork module of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #include "qnetworkcookie.h" |
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43 #include "qnetworkcookie_p.h" |
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44 |
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45 #include "qnetworkrequest.h" |
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46 #include "qnetworkreply.h" |
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47 #include "QtCore/qbytearray.h" |
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48 #include "QtCore/qdebug.h" |
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49 #include "QtCore/qlist.h" |
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50 #include "QtCore/qlocale.h" |
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51 #include "QtCore/qstring.h" |
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52 #include "QtCore/qstringlist.h" |
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53 #include "QtCore/qurl.h" |
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54 #include "private/qobject_p.h" |
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55 |
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56 QT_BEGIN_NAMESPACE |
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57 |
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58 /*! |
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59 \class QNetworkCookie |
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60 \since 4.4 |
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61 \brief The QNetworkCookie class holds one network cookie. |
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62 |
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63 Cookies are small bits of information that stateless protocols |
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64 like HTTP use to maintain some persistent information across |
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65 requests. |
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66 |
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67 A cookie is set by a remote server when it replies to a request |
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68 and it expects the same cookie to be sent back when further |
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69 requests are sent. |
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70 |
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71 QNetworkCookie holds one such cookie as received from the |
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72 network. A cookie has a name and a value, but those are opaque to |
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73 the application (that is, the information stored in them has no |
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74 meaning to the application). A cookie has an associated path name |
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75 and domain, which indicate when the cookie should be sent again to |
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76 the server. |
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77 |
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78 A cookie can also have an expiration date, indicating its |
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79 validity. If the expiration date is not present, the cookie is |
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80 considered a "session cookie" and should be discarded when the |
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81 application exits (or when its concept of session is over). |
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82 |
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83 QNetworkCookie provides a way of parsing a cookie from the HTTP |
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84 header format using the QNetworkCookie::parseCookies() |
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85 function. However, when received in a QNetworkReply, the cookie is |
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86 already parsed. |
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87 |
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88 This class implements cookies as described by the |
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89 \l{Netscape Cookie Specification}{initial cookie specification by |
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90 Netscape}, which is somewhat similar to the \l{RFC 2109} specification, |
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91 plus the \l{Mitigating Cross-site Scripting With HTTP-only Cookies} |
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92 {"HttpOnly" extension}. The more recent \l{RFC 2965} specification |
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93 (which uses the Set-Cookie2 header) is not supported. |
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94 |
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95 \sa QNetworkCookieJar, QNetworkRequest, QNetworkReply |
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96 */ |
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97 |
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98 /*! |
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99 Create a new QNetworkCookie object, initializing the cookie name |
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100 to \a name and its value to \a value. |
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101 |
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102 A cookie is only valid if it has a name. However, the value is |
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103 opaque to the application and being empty may have significance to |
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104 the remote server. |
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105 */ |
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106 QNetworkCookie::QNetworkCookie(const QByteArray &name, const QByteArray &value) |
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107 : d(new QNetworkCookiePrivate) |
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108 { |
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109 qRegisterMetaType<QNetworkCookie>(); |
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110 qRegisterMetaType<QList<QNetworkCookie> >(); |
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111 |
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112 d->name = name; |
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113 d->value = value; |
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114 } |
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115 |
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116 /*! |
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117 Creates a new QNetworkCookie object by copying the contents of \a |
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118 other. |
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119 */ |
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120 QNetworkCookie::QNetworkCookie(const QNetworkCookie &other) |
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121 : d(other.d) |
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122 { |
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123 } |
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124 |
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125 /*! |
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126 Destroys this QNetworkCookie object. |
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127 */ |
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128 QNetworkCookie::~QNetworkCookie() |
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129 { |
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130 // QSharedDataPointer auto deletes |
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131 d = 0; |
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132 } |
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133 |
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134 /*! |
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135 Copies the contents of the QNetworkCookie object \a other to this |
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136 object. |
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137 */ |
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138 QNetworkCookie &QNetworkCookie::operator=(const QNetworkCookie &other) |
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139 { |
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140 d = other.d; |
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141 return *this; |
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142 } |
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143 |
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144 /*! |
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145 \fn bool QNetworkCookie::operator!=(const QNetworkCookie &other) const |
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146 |
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147 Returns true if this cookie is not equal to \a other. |
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148 |
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149 \sa operator==() |
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150 */ |
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151 |
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152 /*! |
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153 Returns true if this cookie is equal to \a other. This function |
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154 only returns true if all fields of the cookie are the same. |
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155 |
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156 However, in some contexts, two cookies of the same name could be |
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157 considered equal. |
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158 |
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159 \sa operator!=() |
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160 */ |
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161 bool QNetworkCookie::operator==(const QNetworkCookie &other) const |
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162 { |
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163 if (d == other.d) |
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164 return true; |
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165 return d->name == other.d->name && |
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166 d->value == other.d->value && |
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167 d->expirationDate.toUTC() == other.d->expirationDate.toUTC() && |
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168 d->domain == other.d->domain && |
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169 d->path == other.d->path && |
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170 d->secure == other.d->secure && |
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171 d->comment == other.d->comment; |
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172 } |
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173 |
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174 /*! |
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175 Returns true if the "secure" option was specified in the cookie |
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176 string, false otherwise. |
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177 |
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178 Secure cookies may contain private information and should not be |
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179 resent over unencrypted connections. |
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180 |
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181 \sa setSecure() |
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182 */ |
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183 bool QNetworkCookie::isSecure() const |
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184 { |
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185 return d->secure; |
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186 } |
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187 |
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188 /*! |
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189 Sets the secure flag of this cookie to \a enable. |
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190 |
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191 Secure cookies may contain private information and should not be |
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192 resent over unencrypted connections. |
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193 |
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194 \sa isSecure() |
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195 */ |
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196 void QNetworkCookie::setSecure(bool enable) |
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197 { |
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198 d->secure = enable; |
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199 } |
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200 |
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201 /*! |
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202 \since 4.5 |
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203 |
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204 Returns true if the "HttpOnly" flag is enabled for this cookie. |
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205 |
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206 A cookie that is "HttpOnly" is only set and retrieved by the |
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207 network requests and replies; i.e., the HTTP protocol. It is not |
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208 accessible from scripts running on browsers. |
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209 |
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210 \sa isSecure() |
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211 */ |
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212 bool QNetworkCookie::isHttpOnly() const |
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213 { |
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214 return d->httpOnly; |
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215 } |
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216 |
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217 /*! |
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218 \since 4.5 |
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219 |
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220 Sets this cookie's "HttpOnly" flag to \a enable. |
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221 */ |
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222 void QNetworkCookie::setHttpOnly(bool enable) |
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223 { |
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224 d->httpOnly = enable; |
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225 } |
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226 |
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227 /*! |
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228 Returns true if this cookie is a session cookie. A session cookie |
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229 is a cookie which has no expiration date, which means it should be |
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230 discarded when the application's concept of session is over |
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231 (usually, when the application exits). |
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232 |
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233 \sa expirationDate(), setExpirationDate() |
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234 */ |
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235 bool QNetworkCookie::isSessionCookie() const |
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236 { |
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237 return !d->expirationDate.isValid(); |
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238 } |
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239 |
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240 /*! |
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241 Returns the expiration date for this cookie. If this cookie is a |
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242 session cookie, the QDateTime returned will not be valid. If the |
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243 date is in the past, this cookie has already expired and should |
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244 not be sent again back to a remote server. |
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245 |
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246 The expiration date corresponds to the parameters of the "expires" |
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247 entry in the cookie string. |
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248 |
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249 \sa isSessionCookie(), setExpirationDate() |
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250 */ |
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251 QDateTime QNetworkCookie::expirationDate() const |
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252 { |
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253 return d->expirationDate; |
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254 } |
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255 |
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256 /*! |
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257 Sets the expiration date of this cookie to \a date. Setting an |
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258 invalid expiration date to this cookie will mean it's a session |
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259 cookie. |
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260 |
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261 \sa isSessionCookie(), expirationDate() |
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262 */ |
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263 void QNetworkCookie::setExpirationDate(const QDateTime &date) |
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264 { |
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265 d->expirationDate = date; |
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266 } |
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267 |
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268 /*! |
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269 Returns the domain this cookie is associated with. This |
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270 corresponds to the "domain" field of the cookie string. |
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271 |
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272 Note that the domain here may start with a dot, which is not a |
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273 valid hostname. However, it means this cookie matches all |
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274 hostnames ending with that domain name. |
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275 |
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276 \sa setDomain() |
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277 */ |
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278 QString QNetworkCookie::domain() const |
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279 { |
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280 return d->domain; |
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281 } |
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282 |
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283 /*! |
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284 Sets the domain associated with this cookie to be \a domain. |
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285 |
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286 \sa domain() |
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287 */ |
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288 void QNetworkCookie::setDomain(const QString &domain) |
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289 { |
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290 d->domain = domain; |
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291 } |
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292 |
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293 /*! |
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294 Returns the path associated with this cookie. This corresponds to |
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295 the "path" field of the cookie string. |
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296 |
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297 \sa setPath() |
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298 */ |
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299 QString QNetworkCookie::path() const |
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300 { |
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301 return d->path; |
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302 } |
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303 |
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304 /*! |
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305 Sets the path associated with this cookie to be \a path. |
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306 |
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307 \sa path() |
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308 */ |
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309 void QNetworkCookie::setPath(const QString &path) |
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310 { |
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311 d->path = path; |
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312 } |
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313 |
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314 /*! |
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315 Returns the name of this cookie. The only mandatory field of a |
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316 cookie is its name, without which it is not considered valid. |
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317 |
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318 \sa setName(), value() |
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319 */ |
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320 QByteArray QNetworkCookie::name() const |
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321 { |
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322 return d->name; |
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323 } |
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324 |
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325 /*! |
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326 Sets the name of this cookie to be \a cookieName. Note that |
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327 setting a cookie name to an empty QByteArray will make this cookie |
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328 invalid. |
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329 |
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330 \sa name(), value() |
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331 */ |
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332 void QNetworkCookie::setName(const QByteArray &cookieName) |
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333 { |
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334 d->name = cookieName; |
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335 } |
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336 |
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337 /*! |
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338 Returns this cookies value, as specified in the cookie |
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339 string. Note that a cookie is still valid if its value is empty. |
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340 |
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341 Cookie name-value pairs are considered opaque to the application: |
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342 that is, their values don't mean anything. |
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343 |
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344 \sa setValue(), name() |
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345 */ |
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346 QByteArray QNetworkCookie::value() const |
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347 { |
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348 return d->value; |
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349 } |
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350 |
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351 /*! |
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352 Sets the value of this cookie to be \a value. |
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353 |
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354 \sa value(), name() |
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355 */ |
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356 void QNetworkCookie::setValue(const QByteArray &value) |
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357 { |
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358 d->value = value; |
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359 } |
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360 |
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361 // ### move this to qnetworkcookie_p.h and share with qnetworkaccesshttpbackend |
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362 static QPair<QByteArray, QByteArray> nextField(const QByteArray &text, int &position) |
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363 { |
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364 // format is one of: |
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365 // (1) token |
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366 // (2) token = token |
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367 // (3) token = quoted-string |
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368 int i; |
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369 const int length = text.length(); |
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370 position = nextNonWhitespace(text, position); |
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371 |
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372 // parse the first part, before the equal sign |
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373 for (i = position; i < length; ++i) { |
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374 register char c = text.at(i); |
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375 if (c == ';' || c == ',' || c == '=') |
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376 break; |
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377 } |
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378 |
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379 QByteArray first = text.mid(position, i - position).trimmed(); |
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380 position = i; |
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381 |
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382 if (first.isEmpty()) |
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383 return qMakePair(QByteArray(), QByteArray()); |
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384 if (i == length || text.at(i) != '=') |
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385 // no equal sign, we found format (1) |
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386 return qMakePair(first, QByteArray()); |
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387 |
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388 QByteArray second; |
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389 second.reserve(32); // arbitrary but works for most cases |
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390 |
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391 i = nextNonWhitespace(text, position + 1); |
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392 if (i < length && text.at(i) == '"') { |
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393 // a quote, we found format (3), where: |
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394 // quoted-string = ( <"> *(qdtext | quoted-pair ) <"> ) |
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395 // qdtext = <any TEXT except <">> |
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396 // quoted-pair = "\" CHAR |
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397 ++i; |
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398 while (i < length) { |
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399 register char c = text.at(i); |
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400 if (c == '"') { |
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401 // end of quoted text |
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402 break; |
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403 } else if (c == '\\') { |
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404 ++i; |
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405 if (i >= length) |
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406 // broken line |
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407 return qMakePair(QByteArray(), QByteArray()); |
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408 c = text.at(i); |
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409 } |
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410 |
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411 second += c; |
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412 ++i; |
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413 } |
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414 |
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415 for ( ; i < length; ++i) { |
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416 register char c = text.at(i); |
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417 if (c == ',' || c == ';') |
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418 break; |
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419 } |
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420 position = i; |
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421 } else { |
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422 // no quote, we found format (2) |
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423 position = i; |
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424 for ( ; i < length; ++i) { |
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425 register char c = text.at(i); |
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426 if (c == ',' || c == ';' || isLWS(c)) |
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427 break; |
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428 } |
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429 |
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430 second = text.mid(position, i - position).trimmed(); |
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431 position = i; |
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432 } |
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433 |
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434 if (second.isNull()) |
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435 second.resize(0); // turns into empty-but-not-null |
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436 return qMakePair(first, second); |
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437 } |
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438 |
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439 /*! |
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440 \enum QNetworkCookie::RawForm |
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441 |
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442 This enum is used with the toRawForm() function to declare which |
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443 form of a cookie shall be returned. |
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444 |
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445 \value NameAndValueOnly makes toRawForm() return only the |
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446 "NAME=VALUE" part of the cookie, as suitable for sending back |
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447 to a server in a client request's "Cookie:" header. Multiple |
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448 cookies are separated by a semi-colon in the "Cookie:" header |
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449 field. |
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450 |
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451 \value Full makes toRawForm() return the full |
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452 cookie contents, as suitable for sending to a client in a |
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453 server's "Set-Cookie:" header. Multiple cookies are separated |
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454 by commas in a "Set-Cookie:" header. |
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455 |
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456 Note that only the Full form of the cookie can be parsed back into |
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457 its original contents. |
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458 |
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459 \sa toRawForm(), parseCookies() |
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460 */ |
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461 |
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462 /*! |
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463 Returns the raw form of this QNetworkCookie. The QByteArray |
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464 returned by this function is suitable for an HTTP header, either |
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465 in a server response (the Set-Cookie header) or the client request |
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466 (the Cookie header). You can choose from one of two formats, using |
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467 \a form. |
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468 |
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469 \sa parseCookies() |
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470 */ |
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471 QByteArray QNetworkCookie::toRawForm(RawForm form) const |
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472 { |
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473 QByteArray result; |
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474 if (d->name.isEmpty()) |
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475 return result; // not a valid cookie |
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476 |
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477 result = d->name; |
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478 result += '='; |
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479 if (d->value.contains(';') || |
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480 d->value.contains(',') || |
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481 d->value.contains(' ') || |
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482 d->value.contains('"')) { |
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483 result += '"'; |
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484 |
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485 QByteArray value = d->value; |
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486 value.replace('"', "\\\""); |
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487 result += value; |
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488 |
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489 result += '"'; |
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490 } else { |
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491 result += d->value; |
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492 } |
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493 |
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494 if (form == Full) { |
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495 // same as above, but encoding everything back |
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496 if (isSecure()) |
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497 result += "; secure"; |
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498 if (isHttpOnly()) |
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499 result += "; HttpOnly"; |
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500 if (!isSessionCookie()) { |
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501 result += "; expires="; |
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502 result += QLocale::c().toString(d->expirationDate.toUTC(), |
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503 QLatin1String("ddd, dd-MMM-yyyy hh:mm:ss 'GMT")).toLatin1(); |
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504 } |
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505 if (!d->domain.isEmpty()) { |
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506 result += "; domain="; |
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507 QString domainNoDot = d->domain; |
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508 if (domainNoDot.startsWith(QLatin1Char('.'))) { |
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509 result += '.'; |
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510 domainNoDot = domainNoDot.mid(1); |
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511 } |
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512 result += QUrl::toAce(domainNoDot); |
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513 } |
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514 if (!d->path.isEmpty()) { |
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515 result += "; path="; |
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516 result += QUrl::toPercentEncoding(d->path, "/"); |
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517 } |
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518 } |
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519 return result; |
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520 } |
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521 |
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522 static const char zones[] = |
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523 "pst\0" // -8 |
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524 "pdt\0" |
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525 "mst\0" // -7 |
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526 "mdt\0" |
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527 "cst\0" // -6 |
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528 "cdt\0" |
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529 "est\0" // -5 |
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530 "edt\0" |
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531 "ast\0" // -4 |
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532 "nst\0" // -3 |
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533 "gmt\0" // 0 |
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534 "utc\0" |
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535 "bst\0" |
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536 "met\0" // 1 |
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537 "eet\0" // 2 |
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538 "jst\0" // 9 |
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539 "\0"; |
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540 static int zoneOffsets[] = {-8, -8, -7, -7, -6, -6, -5, -5, -4, -3, 0, 0, 0, 1, 2, 9 }; |
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541 |
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542 static const char months[] = |
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543 "jan\0" |
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544 "feb\0" |
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545 "mar\0" |
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546 "apr\0" |
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547 "may\0" |
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548 "jun\0" |
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549 "jul\0" |
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550 "aug\0" |
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551 "sep\0" |
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552 "oct\0" |
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553 "nov\0" |
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554 "dec\0" |
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555 "\0"; |
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556 |
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557 static inline bool isNumber(char s) |
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558 { return s >= '0' && s <= '9'; } |
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559 |
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560 static inline bool isTerminator(char c) |
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561 { return c == '\n' || c == '\r'; } |
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562 |
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563 static inline bool isValueSeparator(char c) |
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564 { return isTerminator(c) || c == ';'; } |
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565 |
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566 static inline bool isWhitespace(char c) |
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567 { return c == ' ' || c == '\t'; } |
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568 |
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569 static bool checkStaticArray(int &val, const QByteArray &dateString, int at, const char *array, int size) |
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570 { |
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571 if (dateString[at] < 'a' || dateString[at] > 'z') |
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572 return false; |
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573 if (val == -1 && dateString.length() >= at + 3) { |
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574 int j = 0; |
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575 int i = 0; |
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576 while (i <= size) { |
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577 const char *str = array + i; |
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578 if (str[0] == dateString[at] |
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579 && str[1] == dateString[at + 1] |
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580 && str[2] == dateString[at + 2]) { |
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581 val = j; |
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582 return true; |
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583 } |
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584 i += strlen(str) + 1; |
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585 ++j; |
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586 } |
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587 } |
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588 return false; |
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589 } |
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590 |
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591 //#define PARSEDATESTRINGDEBUG |
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592 |
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593 #define ADAY 1 |
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594 #define AMONTH 2 |
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595 #define AYEAR 4 |
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596 |
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597 /* |
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598 Parse all the date formats that Firefox can. |
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599 |
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600 The official format is: |
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601 expires=ddd(d)?, dd-MMM-yyyy hh:mm:ss GMT |
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602 |
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603 But browsers have been supporting a very wide range of date |
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604 strings. To work on many sites we need to support more then |
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605 just the official date format. |
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606 |
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607 For reference see Firefox's PR_ParseTimeStringToExplodedTime in |
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608 prtime.c. The Firefox date parser is coded in a very complex way |
|
609 and is slightly over ~700 lines long. While this implementation |
|
610 will be slightly slower for the non standard dates it is smaller, |
|
611 more readable, and maintainable. |
|
612 |
|
613 Or in their own words: |
|
614 "} // else what the hell is this." |
|
615 */ |
|
616 static QDateTime parseDateString(const QByteArray &dateString) |
|
617 { |
|
618 QTime time; |
|
619 // placeholders for values when we are not sure it is a year, month or day |
|
620 int unknown[3] = {-1, -1, -1}; |
|
621 int month = -1; |
|
622 int day = -1; |
|
623 int year = -1; |
|
624 int zoneOffset = -1; |
|
625 |
|
626 // hour:minute:second.ms pm |
|
627 QRegExp timeRx(QLatin1String("(\\d{1,2}):(\\d{1,2})(:(\\d{1,2})|)(\\.(\\d{1,3})|)((\\s{0,}(am|pm))|)")); |
|
628 |
|
629 int at = 0; |
|
630 while (at < dateString.length()) { |
|
631 #ifdef PARSEDATESTRINGDEBUG |
|
632 qDebug() << dateString.mid(at); |
|
633 #endif |
|
634 bool isNum = isNumber(dateString[at]); |
|
635 |
|
636 // Month |
|
637 if (!isNum |
|
638 && checkStaticArray(month, dateString, at, months, sizeof(months)- 1)) { |
|
639 ++month; |
|
640 #ifdef PARSEDATESTRINGDEBUG |
|
641 qDebug() << "Month:" << month; |
|
642 #endif |
|
643 at += 3; |
|
644 continue; |
|
645 } |
|
646 // Zone |
|
647 if (!isNum |
|
648 && zoneOffset == -1 |
|
649 && checkStaticArray(zoneOffset, dateString, at, zones, sizeof(zones)- 1)) { |
|
650 int sign = (at >= 0 && dateString[at - 1] == '-') ? -1 : 1; |
|
651 zoneOffset = sign * zoneOffsets[zoneOffset] * 60 * 60; |
|
652 #ifdef PARSEDATESTRINGDEBUG |
|
653 qDebug() << "Zone:" << month; |
|
654 #endif |
|
655 at += 3; |
|
656 continue; |
|
657 } |
|
658 // Zone offset |
|
659 if (!isNum |
|
660 && (zoneOffset == -1 || zoneOffset == 0) // Can only go after gmt |
|
661 && (dateString[at] == '+' || dateString[at] == '-') |
|
662 && (at == 0 |
|
663 || isWhitespace(dateString[at - 1]) |
|
664 || dateString[at - 1] == ',' |
|
665 || (at >= 3 |
|
666 && (dateString[at - 3] == 'g') |
|
667 && (dateString[at - 2] == 'm') |
|
668 && (dateString[at - 1] == 't')))) { |
|
669 |
|
670 int end = 1; |
|
671 while (end < 5 && dateString.length() > at+end |
|
672 && dateString[at + end] >= '0' && dateString[at + end] <= '9') |
|
673 ++end; |
|
674 int minutes = 0; |
|
675 int hours = 0; |
|
676 switch (end - 1) { |
|
677 case 4: |
|
678 minutes = atoi(dateString.mid(at + 3, 2).constData()); |
|
679 // fall through |
|
680 case 2: |
|
681 hours = atoi(dateString.mid(at + 1, 2).constData()); |
|
682 break; |
|
683 case 1: |
|
684 hours = atoi(dateString.mid(at + 1, 1).constData()); |
|
685 break; |
|
686 default: |
|
687 at += end; |
|
688 continue; |
|
689 } |
|
690 if (end != 1) { |
|
691 int sign = dateString[at] == '-' ? -1 : 1; |
|
692 zoneOffset = sign * ((minutes * 60) + (hours * 60 * 60)); |
|
693 #ifdef PARSEDATESTRINGDEBUG |
|
694 qDebug() << "Zone offset:" << zoneOffset << hours << minutes; |
|
695 #endif |
|
696 at += end; |
|
697 continue; |
|
698 } |
|
699 } |
|
700 |
|
701 // Time |
|
702 if (isNum && time.isNull() |
|
703 && dateString.length() >= at + 3 |
|
704 && (dateString[at + 2] == ':' || dateString[at + 1] == ':')) { |
|
705 // While the date can be found all over the string the format |
|
706 // for the time is set and a nice regexp can be used. |
|
707 int pos = timeRx.indexIn(QLatin1String(dateString), at); |
|
708 if (pos != -1) { |
|
709 QStringList list = timeRx.capturedTexts(); |
|
710 int h = atoi(list.at(1).toLatin1().constData()); |
|
711 int m = atoi(list.at(2).toLatin1().constData()); |
|
712 int s = atoi(list.at(4).toLatin1().constData()); |
|
713 int ms = atoi(list.at(6).toLatin1().constData()); |
|
714 if (h < 12 && !list.at(9).isEmpty()) |
|
715 if (list.at(9) == QLatin1String("pm")) |
|
716 h += 12; |
|
717 time = QTime(h, m, s, ms); |
|
718 #ifdef PARSEDATESTRINGDEBUG |
|
719 qDebug() << "Time:" << list << timeRx.matchedLength(); |
|
720 #endif |
|
721 at += timeRx.matchedLength(); |
|
722 continue; |
|
723 } |
|
724 } |
|
725 |
|
726 // 4 digit Year |
|
727 if (isNum |
|
728 && year == -1 |
|
729 && dateString.length() >= at + 3) { |
|
730 if (isNumber(dateString[at + 1]) |
|
731 && isNumber(dateString[at + 2]) |
|
732 && isNumber(dateString[at + 3])) { |
|
733 year = atoi(dateString.mid(at, 4).constData()); |
|
734 at += 4; |
|
735 #ifdef PARSEDATESTRINGDEBUG |
|
736 qDebug() << "Year:" << year; |
|
737 #endif |
|
738 continue; |
|
739 } |
|
740 } |
|
741 |
|
742 // a one or two digit number |
|
743 // Could be month, day or year |
|
744 if (isNum) { |
|
745 int length = 1; |
|
746 if (dateString.length() > at + 1 |
|
747 && isNumber(dateString[at + 1])) |
|
748 ++length; |
|
749 int x = atoi(dateString.mid(at, length).constData()); |
|
750 if (year == -1 && (x > 31 || x == 0)) { |
|
751 year = x; |
|
752 } else { |
|
753 if (unknown[0] == -1) unknown[0] = x; |
|
754 else if (unknown[1] == -1) unknown[1] = x; |
|
755 else if (unknown[2] == -1) unknown[2] = x; |
|
756 } |
|
757 at += length; |
|
758 #ifdef PARSEDATESTRINGDEBUG |
|
759 qDebug() << "Saving" << x; |
|
760 #endif |
|
761 continue; |
|
762 } |
|
763 |
|
764 // Unknown character, typically a weekday such as 'Mon' |
|
765 ++at; |
|
766 } |
|
767 |
|
768 // Once we are done parsing the string take the digits in unknown |
|
769 // and determine which is the unknown year/month/day |
|
770 |
|
771 int couldBe[3] = { 0, 0, 0 }; |
|
772 int unknownCount = 3; |
|
773 for (int i = 0; i < unknownCount; ++i) { |
|
774 if (unknown[i] == -1) { |
|
775 couldBe[i] = ADAY | AYEAR | AMONTH; |
|
776 unknownCount = i; |
|
777 continue; |
|
778 } |
|
779 |
|
780 if (unknown[i] >= 1) |
|
781 couldBe[i] = ADAY; |
|
782 |
|
783 if (month == -1 && unknown[i] >= 1 && unknown[i] <= 12) |
|
784 couldBe[i] |= AMONTH; |
|
785 |
|
786 if (year == -1) |
|
787 couldBe[i] |= AYEAR; |
|
788 } |
|
789 |
|
790 // For any possible day make sure one of the values that could be a month |
|
791 // can contain that day. |
|
792 // For any possible month make sure one of the values that can be a |
|
793 // day that month can have. |
|
794 // Example: 31 11 06 |
|
795 // 31 can't be a day because 11 and 6 don't have 31 days |
|
796 for (int i = 0; i < unknownCount; ++i) { |
|
797 int currentValue = unknown[i]; |
|
798 bool findMatchingMonth = couldBe[i] & ADAY && currentValue >= 29; |
|
799 bool findMatchingDay = couldBe[i] & AMONTH; |
|
800 if (!findMatchingMonth || !findMatchingDay) |
|
801 continue; |
|
802 for (int j = 0; j < 3; ++j) { |
|
803 if (j == i) |
|
804 continue; |
|
805 for (int k = 0; k < 2; ++k) { |
|
806 if (k == 0 && !(findMatchingMonth && (couldBe[j] & AMONTH))) |
|
807 continue; |
|
808 else if (k == 1 && !(findMatchingDay && (couldBe[j] & ADAY))) |
|
809 continue; |
|
810 int m = currentValue; |
|
811 int d = unknown[j]; |
|
812 if (k == 0) |
|
813 qSwap(m, d); |
|
814 if (m == -1) m = month; |
|
815 bool found = true; |
|
816 switch(m) { |
|
817 case 2: |
|
818 // When we get 29 and the year ends up having only 28 |
|
819 // See date.isValid below |
|
820 // Example: 29 23 Feb |
|
821 if (d <= 29) |
|
822 found = false; |
|
823 break; |
|
824 case 4: case 6: case 9: case 11: |
|
825 if (d <= 30) |
|
826 found = false; |
|
827 break; |
|
828 default: |
|
829 if (d > 0 && d <= 31) |
|
830 found = false; |
|
831 } |
|
832 if (k == 0) findMatchingMonth = found; |
|
833 else if (k == 1) findMatchingDay = found; |
|
834 } |
|
835 } |
|
836 if (findMatchingMonth) |
|
837 couldBe[i] &= ~ADAY; |
|
838 if (findMatchingDay) |
|
839 couldBe[i] &= ~AMONTH; |
|
840 } |
|
841 |
|
842 // First set the year/month/day that have been deduced |
|
843 // and reduce the set as we go along to deduce more |
|
844 for (int i = 0; i < unknownCount; ++i) { |
|
845 int unset = 0; |
|
846 for (int j = 0; j < 3; ++j) { |
|
847 if (couldBe[j] == ADAY && day == -1) { |
|
848 day = unknown[j]; |
|
849 unset |= ADAY; |
|
850 } else if (couldBe[j] == AMONTH && month == -1) { |
|
851 month = unknown[j]; |
|
852 unset |= AMONTH; |
|
853 } else if (couldBe[j] == AYEAR && year == -1) { |
|
854 year = unknown[j]; |
|
855 unset |= AYEAR; |
|
856 } else { |
|
857 // common case |
|
858 break; |
|
859 } |
|
860 couldBe[j] &= ~unset; |
|
861 } |
|
862 } |
|
863 |
|
864 // Now fallback to a standardized order to fill in the rest with |
|
865 for (int i = 0; i < unknownCount; ++i) { |
|
866 if (couldBe[i] & AMONTH && month == -1) month = unknown[i]; |
|
867 else if (couldBe[i] & ADAY && day == -1) day = unknown[i]; |
|
868 else if (couldBe[i] & AYEAR && year == -1) year = unknown[i]; |
|
869 } |
|
870 #ifdef PARSEDATESTRINGDEBUG |
|
871 qDebug() << "Final set" << year << month << day; |
|
872 #endif |
|
873 |
|
874 if (year == -1 || month == -1 || day == -1) { |
|
875 #ifdef PARSEDATESTRINGDEBUG |
|
876 qDebug() << "Parser failure" << year << month << day; |
|
877 #endif |
|
878 return QDateTime(); |
|
879 } |
|
880 |
|
881 // Y2k behavior |
|
882 int y2k = 0; |
|
883 if (year < 70) |
|
884 y2k = 2000; |
|
885 else if (year < 100) |
|
886 y2k = 1900; |
|
887 |
|
888 QDate date(year + y2k, month, day); |
|
889 |
|
890 // When we were given a bad cookie that when parsed |
|
891 // set the day to 29 and the year to one that doesn't |
|
892 // have the 29th of Feb rather then adding the extra |
|
893 // complicated checking earlier just swap here. |
|
894 // Example: 29 23 Feb |
|
895 if (!date.isValid()) |
|
896 date = QDate(day + y2k, month, year); |
|
897 |
|
898 QDateTime dateTime(date, time, Qt::UTC); |
|
899 |
|
900 if (zoneOffset != -1) { |
|
901 dateTime = dateTime.addSecs(zoneOffset); |
|
902 } |
|
903 if (!dateTime.isValid()) |
|
904 return QDateTime(); |
|
905 return dateTime; |
|
906 } |
|
907 |
|
908 /*! |
|
909 Parses the cookie string \a cookieString as received from a server |
|
910 response in the "Set-Cookie:" header. If there's a parsing error, |
|
911 this function returns an empty list. |
|
912 |
|
913 Since the HTTP header can set more than one cookie at the same |
|
914 time, this function returns a QList<QNetworkCookie>, one for each |
|
915 cookie that is parsed. |
|
916 |
|
917 \sa toRawForm() |
|
918 */ |
|
919 QList<QNetworkCookie> QNetworkCookie::parseCookies(const QByteArray &cookieString) |
|
920 { |
|
921 // cookieString can be a number of set-cookie header strings joined together |
|
922 // by \n, parse each line separately. |
|
923 QList<QNetworkCookie> cookies; |
|
924 QList<QByteArray> list = cookieString.split('\n'); |
|
925 for (int a = 0; a < list.size(); a++) |
|
926 cookies += QNetworkCookiePrivate::parseSetCookieHeaderLine(list.at(a)); |
|
927 return cookies; |
|
928 } |
|
929 |
|
930 QList<QNetworkCookie> QNetworkCookiePrivate::parseSetCookieHeaderLine(const QByteArray &cookieString) |
|
931 { |
|
932 // According to http://wp.netscape.com/newsref/std/cookie_spec.html,< |
|
933 // the Set-Cookie response header is of the format: |
|
934 // |
|
935 // Set-Cookie: NAME=VALUE; expires=DATE; path=PATH; domain=DOMAIN_NAME; secure |
|
936 // |
|
937 // where only the NAME=VALUE part is mandatory |
|
938 // |
|
939 // We do not support RFC 2965 Set-Cookie2-style cookies |
|
940 |
|
941 QList<QNetworkCookie> result; |
|
942 QDateTime now = QDateTime::currentDateTime().toUTC(); |
|
943 |
|
944 int position = 0; |
|
945 const int length = cookieString.length(); |
|
946 while (position < length) { |
|
947 QNetworkCookie cookie; |
|
948 |
|
949 // The first part is always the "NAME=VALUE" part |
|
950 QPair<QByteArray,QByteArray> field = nextField(cookieString, position); |
|
951 if (field.first.isEmpty() || field.second.isNull()) |
|
952 // parsing error |
|
953 break; |
|
954 cookie.setName(field.first); |
|
955 cookie.setValue(field.second); |
|
956 |
|
957 position = nextNonWhitespace(cookieString, position); |
|
958 bool endOfCookie = false; |
|
959 while (!endOfCookie && position < length) { |
|
960 switch (cookieString.at(position++)) { |
|
961 case ',': |
|
962 // end of the cookie |
|
963 endOfCookie = true; |
|
964 break; |
|
965 |
|
966 case ';': |
|
967 // new field in the cookie |
|
968 field = nextField(cookieString, position); |
|
969 field.first = field.first.toLower(); // everything but the NAME=VALUE is case-insensitive |
|
970 |
|
971 if (field.first == "expires") { |
|
972 position -= field.second.length(); |
|
973 int end; |
|
974 for (end = position; end < length; ++end) |
|
975 if (isValueSeparator(cookieString.at(end))) |
|
976 break; |
|
977 |
|
978 QByteArray dateString = cookieString.mid(position, end - position).trimmed(); |
|
979 position = end; |
|
980 QDateTime dt = parseDateString(dateString.toLower()); |
|
981 if (!dt.isValid()) { |
|
982 return result; |
|
983 } |
|
984 cookie.setExpirationDate(dt); |
|
985 } else if (field.first == "domain") { |
|
986 QByteArray rawDomain = field.second; |
|
987 if (rawDomain.startsWith('.')) { |
|
988 rawDomain = rawDomain.mid(1); |
|
989 } |
|
990 QString normalizedDomain = QUrl::fromAce(QUrl::toAce(QString::fromUtf8(rawDomain))); |
|
991 // always add the dot, there are some servers that forget the |
|
992 // leading dot. This is actually forbidden according to RFC 2109, |
|
993 // but all browsers accept it anyway so we do that as well |
|
994 cookie.setDomain(QLatin1Char('.') + normalizedDomain); |
|
995 } else if (field.first == "max-age") { |
|
996 bool ok = false; |
|
997 int secs = field.second.toInt(&ok); |
|
998 if (!ok) |
|
999 return result; |
|
1000 cookie.setExpirationDate(now.addSecs(secs)); |
|
1001 } else if (field.first == "path") { |
|
1002 QString path = QUrl::fromPercentEncoding(field.second); |
|
1003 cookie.setPath(path); |
|
1004 } else if (field.first == "secure") { |
|
1005 cookie.setSecure(true); |
|
1006 } else if (field.first == "httponly") { |
|
1007 cookie.setHttpOnly(true); |
|
1008 } else if (field.first == "comment") { |
|
1009 //cookie.setComment(QString::fromUtf8(field.second)); |
|
1010 } else if (field.first == "version") { |
|
1011 if (field.second != "1") { |
|
1012 // oops, we don't know how to handle this cookie |
|
1013 return result; |
|
1014 } |
|
1015 } else { |
|
1016 // got an unknown field in the cookie |
|
1017 // what do we do? |
|
1018 } |
|
1019 |
|
1020 position = nextNonWhitespace(cookieString, position); |
|
1021 } |
|
1022 } |
|
1023 |
|
1024 if (!cookie.name().isEmpty()) |
|
1025 result += cookie; |
|
1026 } |
|
1027 |
|
1028 return result; |
|
1029 } |
|
1030 |
|
1031 #ifndef QT_NO_DEBUG_STREAM |
|
1032 QDebug operator<<(QDebug s, const QNetworkCookie &cookie) |
|
1033 { |
|
1034 s.nospace() << "QNetworkCookie(" << cookie.toRawForm(QNetworkCookie::Full) << ')'; |
|
1035 return s.space(); |
|
1036 } |
|
1037 #endif |
|
1038 |
|
1039 QT_END_NAMESPACE |