| 1 | /*
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| 2 | * xmlenc.h - XML Encryption
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| 3 | * Copyright (C) 2003 Justin Karneges
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| 4 | *
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| 5 | * This library is free software; you can redistribute it and/or
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| 6 | * modify it under the terms of the GNU Lesser General Public
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| 7 | * License as published by the Free Software Foundation; either
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| 8 | * version 2.1 of the License, or (at your option) any later version.
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| 9 | *
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| 10 | * This library is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 13 | * Lesser General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU Lesser General Public
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| 16 | * License along with this library; if not, write to the Free Software
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| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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| 18 | *
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| 19 | */
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| 20 |
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| 21 | #ifndef CS_XMLENC_H
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| 22 | #define CS_XMLENC_H
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| 23 |
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| 24 | #include<qstring.h>
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| 25 | #include<qcstring.h>
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| 26 | #include<qstringlist.h>
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| 27 | #include<qdom.h>
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| 28 | #include<qvaluelist.h>
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| 29 | #include"../util/cipher.h"
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| 30 |
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| 31 | namespace XmlEnc
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| 32 | {
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| 33 | enum Method { None, TripleDES, AES_128, AES_256, RSA_1_5, RSA_OAEP };
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| 34 | enum DataType { Arbitrary, Element, Content };
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| 35 |
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| 36 | class KeyInfo
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| 37 | {
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| 38 | public:
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| 39 | KeyInfo();
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| 40 | ~KeyInfo();
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| 41 |
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| 42 | bool isEmpty() const;
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| 43 | QString name() const;
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| 44 | QByteArray value () const;
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| 45 | QStringList retrievalMethods() const;
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| 46 | QDomElement encryptedKey() const;
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| 47 | void setName(const QString &);
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| 48 | void setValue(const QByteArray &);
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| 49 | void setRetrievalMethods(const QStringList &);
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| 50 | void attachEncryptedKey(const QDomElement &);
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| 51 |
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| 52 | QDomElement toXml(QDomDocument *) const;
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| 53 | bool fromXml(const QDomElement &);
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| 54 |
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| 55 | private:
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| 56 | QString v_name;
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| 57 | QByteArray v_value;
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| 58 | QStringList v_rmethods;
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| 59 | QDomElement v_key;
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| 60 | };
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| 61 |
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| 62 | class Reference
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| 63 | {
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| 64 | public:
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| 65 | Reference() {}
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| 66 |
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| 67 | QString uri() const { return v_uri; }
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| 68 | QDomElement transforms() const { return v_trans; }
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| 69 | void setURI(const QString &s) { v_uri = s; }
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| 70 | void setTransforms(const QDomElement &e) { v_trans = e; }
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| 71 |
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| 72 | private:
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| 73 | QString v_uri;
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| 74 | QDomElement v_trans;
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| 75 | };
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| 76 | typedef QValueList<Reference> ReferenceList;
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| 77 |
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| 78 | class EncryptionProperty
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| 79 | {
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| 80 | public:
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| 81 | EncryptionProperty(const QString &target="", const QString &id="");
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| 82 |
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| 83 | QString target() const;
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| 84 | QString id() const;
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| 85 | QString property(const QString &var) const;
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| 86 | void setTarget(const QString &);
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| 87 | void setId(const QString &);
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| 88 | void setProperty(const QString &var, const QString &val);
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| 89 |
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| 90 | QDomElement toXml(QDomDocument *) const;
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| 91 | bool fromXml(QDomElement &);
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| 92 |
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| 93 | private:
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| 94 | QString v_target, v_id;
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| 95 | QStringList vars, vals;
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| 96 | };
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| 97 |
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| 98 | class EncryptionProperties : public QValueList<EncryptionProperty>
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| 99 | {
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| 100 | public:
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| 101 | EncryptionProperties(const QString &s="");
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| 102 |
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| 103 | QString id() const;
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| 104 | void setId(const QString &);
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| 105 |
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| 106 | QDomElement toXml(QDomDocument *) const;
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| 107 | bool fromXml(QDomElement &);
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| 108 |
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| 109 | private:
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| 110 | QString v_id;
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| 111 | };
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| 112 |
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| 113 | class Encrypted
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| 114 | {
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| 115 | public:
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| 116 | enum Type { Key, Data };
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| 117 | Encrypted();
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| 118 | ~Encrypted();
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| 119 |
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| 120 | void clear();
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| 121 |
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| 122 | Method method() const { return v_method; }
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| 123 | QString id() const { return v_id; }
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| 124 | DataType dataType() const { return v_dataType; }
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| 125 | Type type() const { return v_type; }
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| 126 | QString mimeType() const { return v_mimeType; }
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| 127 | const KeyInfo & keyInfo() const { return v_keyInfo; }
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| 128 | bool isReference() const { return (!v_cref.uri().isEmpty()); }
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| 129 | const Reference & dataReference() const { return v_cref; }
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| 130 | QString carriedKeyName() const { return v_carrykeyname; }
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| 131 | const ReferenceList & referenceList() const { return v_reflist; }
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| 132 | const EncryptionProperties & encryptionProperties() const { return v_props; }
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| 133 |
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| 134 | void setId(const QString &id) { v_id = id; }
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| 135 | void setDataType(DataType t) { v_dataType = t; }
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| 136 | void setType(Type t) { v_type = t; }
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| 137 | void setMimeType(const QString &mime) { v_mimeType = mime; }
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| 138 | void setKeyInfo(const KeyInfo &info) { v_keyInfo = info; }
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| 139 | void setDataReference(const Reference &cref, Method m);
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| 140 | void setCarriedKeyName(const QString &s) { v_carrykeyname = s; }
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| 141 | void setReferenceList(const ReferenceList &rl) { v_reflist = rl; }
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| 142 | void setEncryptionProperties(const EncryptionProperties &p) { v_props = p; }
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| 143 |
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| 144 | bool encryptData(const QByteArray &data, const Cipher::Key &key);
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| 145 | bool encryptElement(const QDomElement &data, const Cipher::Key &key);
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| 146 | bool encryptContent(const QDomElement &data, const Cipher::Key &key);
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| 147 | bool encryptKey(const Cipher::Key &data, const Cipher::Key &key);
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| 148 | bool encryptKey(const Cipher::Key &data, const RSAKey &key);
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| 149 |
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| 150 | QByteArray decryptData(const Cipher::Key &key) const;
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| 151 | QDomElement decryptElement(QDomDocument *, const Cipher::Key &key) const;
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| 152 | QDomNodeList decryptContent(QDomDocument *, const Cipher::Key &key) const;
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| 153 | QByteArray decryptKey(const Cipher::Key &key) const;
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| 154 | QByteArray decryptKey(const RSAKey &key) const;
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| 155 |
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| 156 | QDomElement toXml(QDomDocument *) const;
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| 157 | bool fromXml(const QDomElement &);
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| 158 |
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| 159 | private:
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| 160 | Method v_method;
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| 161 | QString v_id;
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| 162 | DataType v_dataType;
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| 163 | Type v_type;
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| 164 | QString v_mimeType;
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| 165 | KeyInfo v_keyInfo;
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| 166 |
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| 167 | QString v_cval;
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| 168 | Reference v_cref;
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| 169 | QString v_carrykeyname;
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| 170 | ReferenceList v_reflist;
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| 171 | EncryptionProperties v_props;
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| 172 |
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| 173 | QString baseNS;
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| 174 | Method cipherTypeToMethod(Cipher::Type) const;
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| 175 | QString methodToAlgorithm(Method, Type) const;
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| 176 | Method algorithmToMethod(const QString &) const;
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| 177 | };
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| 178 | };
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| 179 |
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| 180 | #endif
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