1 files changed, 99 insertions, 0 deletions
diff --git a/src/b2qt-update-application/tar.h b/src/b2qt-update-application/tar.h
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+++ b/src/b2qt-update-application/tar.h
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+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use the contact form at
+** http://qt.digia.com/
+**
+** This file is part of Qt Enterprise Embedded.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** the contact form at http://qt.digia.com/
+**
+****************************************************************************/
+
+#ifndef TAR_H
+#define TAR_H
+
+#include <QObject>
+#include <openssl/x509.h>
+class QIODevice;
+class QProcess;
+#define USTAR_HEADER_SIZE 512
+
+struct ustar_header
+{
+char name[100];             /* File name.  Null-terminated if room. */
+char mode[8];               /* Permissions as octal string. */
+char uid[8];                /* User ID as octal string. */
+char gid[8];                /* Group ID as octal string. */
+char size[12];              /* File size in bytes as octal string. */
+char mtime[12];             /* Modification time in seconds from Jan 1, 1970, as octal string. */
+char chksum[8];             /* Sum of octets in header as octal string. */
+char typeflag;              /* An enum ustar_type value. */
+char linkname[100];         /* Name of link target.  Null-terminated if room. */
+char magic[6];              /* "ustar\0" */
+char version[2];            /* "00" */
+char uname[32];             /* User name, always null-terminated. */
+char gname[32];             /* Group name, always null-terminated. */
+char devmajor[8];           /* Device major number as octal string. */
+char devminor[8];           /* Device minor number as octal string. */
+char prefix[155];           /* Prefix to file name.  Null-terminated if room. */
+char padding[12];           /* Pad to 512 bytes. */
+} __attribute__((packed));
+
+class Tar : public QObject
+{
+    Q_OBJECT
+
+public:
+    Tar(QIODevice *source);
+    virtual ~Tar();
+
+    const QByteArray &currentContent() const;
+    unsigned long currentSize() const;
+    QString currentFileName() const;
+
+    enum State { WaitForHeader, WaitForDecision, Extract, Receive, Skip, WaitForContinue};
+    bool setVerificationData(const QString &certificateFileName, const QString &md);
+    bool checkSignature(const QByteArray &signature);
+    bool verifyCurrentContent(const QByteArray &signature);
+
+signals:
+    void startingFile(const QString &name);
+    void endingFile(const QString &name);
+    void finished();
+
+public slots:
+    void extractContent(const QString &targetDir);
+    void receiveContent();
+    void skipContent();
+    void dataIncoming();
+    void continueContent();
+
+private slots:
+    void aboutToClose();
+
+private:
+    void setupMDContext();
+    void updateMDContext(QByteArray);
+
+    QIODevice *mSource;
+    qint64 mSize;
+    qint64 mRemainingSize; // File Size + Padding
+    qint64 mRemainingFileBytes; // File Size without Padding
+    ustar_header mHeader;
+    QByteArray mContent;
+    QProcess *mProcess;
+    State mState;
+    X509 *x509;
+    EVP_MD_CTX *mdctx;
+    const EVP_MD *md;
+};
+
+#endif // TAR_H