1 files changed, 30 insertions, 0 deletions
diff --git a/libqpdf/qpdf/Pl_MD5.hh b/libqpdf/qpdf/Pl_MD5.hh
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+++ b/libqpdf/qpdf/Pl_MD5.hh
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+
+#ifndef __PL_MD5_HH__
+#define __PL_MD5_HH__
+
+// This pipeline sends its output to its successor unmodified.  After
+// calling finish, the MD5 checksum of the data that passed through
+// the pipeline is available.
+
+// This pipeline is reusable; i.e., it is safe to call write() after
+// calling finish().  The first call to write() after a call to
+// finish() initializes a new MD5 object.
+
+#include <qpdf/Pipeline.hh>
+#include <qpdf/MD5.hh>
+
+class Pl_MD5: public Pipeline
+{
+  public:
+    Pl_MD5(char const* identifier, Pipeline* next);
+    virtual ~Pl_MD5();
+    virtual void write(unsigned char*, int);
+    virtual void finish();
+    std::string getHexDigest();
+
+  private:
+    bool in_progress;
+    MD5 md5;
+};
+
+#endif // __PL_MD5_HH__