first ever received and cached client data!

shared/CMakeLists.txt

@@ -21,4 +21,5 @@ target_sources(squawk PRIVATE
   clientinfo.h
   clientinfo.cpp
   identity.h
+  identity.cpp
   )

shared/clientinfo.cpp

@@ -16,30 +16,42 @@
 
 #include "clientinfo.h"
 
+const std::map<QString, QCryptographicHash::Algorithm> Shared::ClientInfo::hashes = {
+    //md2 is missing
+    {"md5", QCryptographicHash::Md5},
+    {"sha-1", QCryptographicHash::Sha1},
+    {"sha-224", QCryptographicHash::Sha224},
+    {"sha-256", QCryptographicHash::Sha256},
+    {"sha-384", QCryptographicHash::Sha384},
+    {"sha-512", QCryptographicHash::Sha512},
+    //shake128 is missing
+    //shake256 is missing
+
+};
+
 Shared::ClientInfo::ClientInfo():
-    name(),
-    category(),
-    type(),
-    capabilitiesNode(),
-    capabilitiesVerification(),
-    capabilitiesHash(),
-    specificPresence(),
-    capabilitiesExtensions() {}
+    identities(),
+    extensions(),
+    node(),
+    verification(),
+    hash(),
+    specificPresence() {}
 
 QString Shared::ClientInfo::getId() const {
-    return capabilitiesNode + "/" + capabilitiesVerification;
+    return node + "/" + verification;
 }
 
 
 QDataStream & Shared::ClientInfo::operator >> (QDataStream& stream) const {
-    stream << name;
-    stream << category;
-    stream << type;
-    stream << capabilitiesNode;
-    stream << capabilitiesVerification;
-    stream << capabilitiesHash;
-    stream << (quint8)capabilitiesExtensions.size();
-    for (const QString& ext : capabilitiesExtensions) {
+    stream << node;
+    stream << verification;
+    stream << hash;
+    stream << (quint8)identities.size();
+    for (const Shared::Identity& identity : identities) {
+        stream << identity;
+    }
+    stream << (quint8)extensions.size();
+    for (const QString& ext : extensions) {
         stream << ext;
     }
 
@@ -47,29 +59,53 @@ QDataStream & Shared::ClientInfo::operator >> (QDataStream& stream) const {
 }
 
 QDataStream & Shared::ClientInfo::operator << (QDataStream& stream) {
-    stream >> name;
-    stream >> category;
-    stream >> type;
-    stream >> capabilitiesNode;
-    stream >> capabilitiesVerification;
-    stream >> capabilitiesHash;
+    stream >> node;
+    stream >> verification;
+    stream >> hash;
 
     quint8 size;
+    stream >> size;
+    for (quint8 i = 0; i < size; ++i) {
+        Shared::Identity identity;
+        stream >> identity;
+        identities.insert(identity);
+    }
+
     stream >> size;
     for (quint8 i = 0; i < size; ++i) {
         QString ext;
         stream >> ext;
-        capabilitiesExtensions.insert(ext);
+        extensions.insert(ext);
     }
 
     return stream;
 }
 
-QDataStream& operator<< (QDataStream& stream, const Shared::ClientInfo& image) {
-    image >> stream;
+bool Shared::ClientInfo::valid() const {
+    std::map<QString, QCryptographicHash::Algorithm>::const_iterator itr = hashes.find(hash);
+    if (itr == hashes.end()) {
+        return false;
+    }
+
+    QCryptographicHash calc(itr->second);
+    QString validationString = "";
+    for (const Identity& identity : identities) {
+        calc.addData((identity.category + "/" + identity.type + "/" + identity.language + "/" + identity.name + "<").toUtf8());
+    }
+    for (const QString& ext : extensions) {
+        calc.addData((ext + "<").toUtf8());
+    }
+
+    QString result = calc.result().toBase64();
+
+    return result == verification;
+}
+
+QDataStream& operator << (QDataStream& stream, const Shared::ClientInfo& info) {
+    info >> stream;
     return stream;
 }
-QDataStream& operator>> (QDataStream& stream, Shared::ClientInfo& image) {
-    image << stream;
+QDataStream& operator >> (QDataStream& stream, Shared::ClientInfo& info) {
+    info << stream;
     return stream;
 }

shared/clientinfo.h

@@ -21,6 +21,9 @@
 
 #include <QDataStream>
 #include <QString>
+#include <QCryptographicHash>
+
+#include <shared/identity.h>
 
 namespace Shared {
 
@@ -30,24 +33,26 @@ public:
     ClientInfo();
 
     QString getId() const;
+    bool valid() const;
 
     QDataStream& operator << (QDataStream& stream);
     QDataStream& operator >> (QDataStream& stream) const;
 
 public:
-    QString name;
-    QString category;
-    QString type;
-    QString capabilitiesNode;
-    QString capabilitiesVerification;
-    QString capabilitiesHash;
+    std::set<Identity> identities;
+    std::set<QString> extensions;
+    QString node;
+    QString verification;
+    QString hash;
     QString specificPresence;
-    std::set<QString> capabilitiesExtensions;
+
+private:
+    static const std::map<QString, QCryptographicHash::Algorithm> hashes;
 };
 
 }
 
-QDataStream& operator<< (QDataStream& stream, const Shared::ClientInfo& image);
-QDataStream& operator>> (QDataStream& stream, Shared::ClientInfo& image);
+QDataStream& operator << (QDataStream& stream, const Shared::ClientInfo& info);
+QDataStream& operator >> (QDataStream& stream, Shared::ClientInfo& info);
 
 #endif // SHARED_CLIENTINFO_H

shared/identity.cpp

@@ -0,0 +1,142 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "identity.h"
+
+Shared::Identity::Identity():
+    category(),
+    type(),
+    language(),
+    name() {}
+
+bool Shared::Identity::operator==(const Shared::Identity& other) const {
+    return category == other.category && type == other.type && language == other.language && name == other.name;
+}
+
+bool Shared::Identity::operator!=(const Shared::Identity& other) const {
+    return category != other.category || type != other.type || language != other.language || name != other.name;
+}
+
+bool Shared::Identity::operator > (const Shared::Identity& other) const {
+    if (category > other.category) {
+        return true;
+    } else if (category < other.category) {
+        return false;
+    } else if (type > other.type) {
+        return true;
+    } else if (type < other.type) {
+        return false;
+    } else if (language > other.language) {
+        return true;
+    } else if (language < other.language) {
+        return false;
+    } else if (name > other.name) {
+        return true;
+    } else {
+        return false;
+    }
+}
+
+bool Shared::Identity::operator < (const Shared::Identity& other) const {
+    if (category < other.category) {
+        return true;
+    } else if (category > other.category) {
+        return false;
+    } else if (type < other.type) {
+        return true;
+    } else if (type > other.type) {
+        return false;
+    } else if (language < other.language) {
+        return true;
+    } else if (language > other.language) {
+        return false;
+    } else if (name < other.name) {
+        return true;
+    } else {
+        return false;
+    }
+}
+
+bool Shared::Identity::operator >= (const Shared::Identity& other) const {
+    if (category > other.category) {
+        return true;
+    } else if (category < other.category) {
+        return false;
+    } else if (type > other.type) {
+        return true;
+    } else if (type < other.type) {
+        return false;
+    } else if (language > other.language) {
+        return true;
+    } else if (language < other.language) {
+        return false;
+    } else if (name > other.name) {
+        return true;
+    } else if (name < other.name) {
+        return false;
+    } else {
+        return true;
+    }
+}
+
+bool Shared::Identity::operator <= (const Shared::Identity& other) const {
+    if (category < other.category) {
+        return true;
+    } else if (category > other.category) {
+        return false;
+    } else if (type < other.type) {
+        return true;
+    } else if (type > other.type) {
+        return false;
+    } else if (language < other.language) {
+        return true;
+    } else if (language > other.language) {
+        return false;
+    } else if (name < other.name) {
+        return true;
+    } else if (name > other.name) {
+        return false;
+    } else {
+        return true;
+    }
+}
+
+QDataStream & Shared::Identity::operator >> (QDataStream& stream) const {
+    stream << category;
+    stream << type;
+    stream << language;
+    stream << name;
+}
+
+QDataStream & Shared::Identity::operator << (QDataStream& stream) {
+    stream >> category;
+    stream >> type;
+    stream >> language;
+    stream >> name;
+}
+
+QDataStream & operator >> (QDataStream& stream, Shared::Identity& identity) {
+    identity << stream;
+    return stream;
+}
+
+QDataStream & operator << (QDataStream& stream, const Shared::Identity& identity) {
+    identity >> stream;
+    return stream;
+}
+

shared/identity.h

@@ -19,17 +19,34 @@
 #ifndef SHARED_IDENTITY_H
 #define SHARED_IDENTITY_H
 
+#include <QDataStream>
 #include <QString>
 
 namespace Shared {
 
-struct Identity {
+class Identity {
+public:
+    Identity();
+
+    QDataStream& operator << (QDataStream& stream);
+    QDataStream& operator >> (QDataStream& stream) const;
+
+    bool operator < (const Identity& other) const;
+    bool operator > (const Identity& other) const;
+    bool operator >= (const Identity& other) const;
+    bool operator <= (const Identity& other) const;
+    bool operator == (const Identity& other) const;
+    bool operator != (const Identity& other) const;
+public:
     QString category;
+    QString type;
     QString language;
     QString name;
-    QString type;
 };
 
 }
 
+QDataStream& operator << (QDataStream& stream, const Shared::Identity& identity);
+QDataStream& operator >> (QDataStream& stream, Shared::Identity& identity);
+
 #endif //SHARED_IDENTITY_H