Correct comment

[lyx.git] / src / support / FileName.cpp

diff --git a/src/support/FileName.cpp b/src/support/FileName.cpp
index 179fef46ee92e2b419fd8f18e33d74b162a3472c..a6b849407a5156d4da27263e30a9b1533f10a0f2 100644 (file)
--- a/src/support/FileName.cpp
+++ b/src/support/FileName.cpp
@@ -22,6 +22,7 @@
 #include "support/Package.h"
 #include "support/qstring_helpers.h"
 
+#include <QCryptographicHash>
 #include <QDateTime>
 #include <QDir>
 #include <QFile>
@@ -955,6 +956,11 @@ string DocFileName::outputFileName(string const & path) const
 
 
 string DocFileName::mangledFileName(string const & dir) const
+{
+       return mangledFileName(dir, true, false);
+};
+
+string DocFileName::mangledFileName(string const & dir, bool use_counter, bool encrypt_path) const
 {
        // Concurrent access to these variables is possible.
 
@@ -972,6 +978,19 @@ string DocFileName::mangledFileName(string const & dir) const
        string const name = absFileName();
        // Now the real work. Remove the extension.
        string mname = support::changeExtension(name, string());
+
+       if (encrypt_path) {
+               QString qname = toqstr(mname);
+#if QT_VERSION >= 0x050000
+               QByteArray hash  = QCryptographicHash::hash(qname.toLocal8Bit(),QCryptographicHash::Sha256);
+#else
+               QByteArray hash  = QCryptographicHash::hash(qname.toLocal8Bit(),QCryptographicHash::Sha1);
+#endif
+               hash = hash.toHex();
+               mname = fromqstr(QString(hash));
+               mname = mname + "_" + onlyFileName();
+               }
+
        // The mangled name must be a valid LaTeX name.
        // The list of characters to keep is probably over-restrictive,
        // but it is not really a problem.
@@ -991,9 +1010,12 @@ string DocFileName::mangledFileName(string const & dir) const
        // Prepend a counter to the filename. This is necessary to make
        // the mangled name unique.
        static int counter = 0;
-       ostringstream s;
-       s << counter++ << mname;
-       mname = s.str();
+
+       if (use_counter) {
+               ostringstream s;
+               s << counter++ << mname;
+               mname = s.str();
+       }
 
        // MiKTeX's YAP (version 2.4.1803) crashes if the file name
        // is longer than about 160 characters. MiKTeX's pdflatex