2 Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * @brief Utility methods.
26 #include <boost/signals2.hpp>
37 class CertificateChain;
42 extern std::string make_uuid ();
44 /** Create a digest for a file.
45 * @param filename File name.
46 * @param progress If non-0, a signal which will be emitted periodically to update
47 * progress; the parameter will start at 0.5 and proceed to 1.
50 extern std::string make_digest (std::string filename, boost::signals2::signal<void (float)>* progress);
52 extern std::string content_kind_to_string (ContentKind kind);
53 extern ContentKind content_kind_from_string (std::string kind);
54 extern bool starts_with (std::string big, std::string little);
55 extern bool ends_with (std::string big, std::string little);
56 extern bool empty_or_white_space (std::string s);
58 extern opj_image_t* decompress_j2k (uint8_t* data, int64_t size, int reduce);
59 extern boost::shared_ptr<ARGBFrame> xyz_to_rgb (opj_image_t* xyz_frame);
63 extern void sign (xmlpp::Element* parent, CertificateChain const & certificates, std::string const & signer_key);
64 extern void add_signature_value (xmlpp::Element* parent, CertificateChain const & certificates, std::string const & signer_key, std::string const & ns);
65 extern void add_signer (xmlpp::Element* parent, CertificateChain const & certificates, std::string const & ns);