2 Copyright (C) 2012-2014 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.
24 * @brief Utility methods.
28 #include <boost/shared_ptr.hpp>
29 #include <boost/function.hpp>
30 #include <boost/filesystem.hpp>
31 #include <boost/optional.hpp>
43 class CertificateChain;
48 * @brief The integer, two-dimensional size of something.
62 float ratio () const {
63 return float (width) / height;
70 extern bool operator== (Size const & a, Size const & b);
71 extern bool operator!= (Size const & a, Size const & b);
72 extern std::ostream& operator<< (std::ostream& s, Size const & a);
74 extern std::string make_uuid ();
75 extern std::string make_digest (boost::filesystem::path filename, boost::function<void (float)>);
76 extern std::string content_kind_to_string (ContentKind kind);
77 extern ContentKind content_kind_from_string (std::string kind);
78 extern bool empty_or_white_space (std::string s);
79 extern boost::shared_ptr<XYZFrame> decompress_j2k (uint8_t* data, int64_t size, int reduce);
80 extern bool ids_equal (std::string a, std::string b);
84 extern void sign (xmlpp::Element* parent, CertificateChain const & certificates, boost::filesystem::path signer_key, Standard standard);
85 extern void add_signature_value (xmlpp::Element* parent, CertificateChain const & certificates, boost::filesystem::path signer_key, std::string const & ns);
86 extern void add_signer (xmlpp::Element* parent, CertificateChain const & certificates, std::string const & ns);
88 extern int base64_decode (std::string const & in, unsigned char* out, int out_length);
89 extern boost::optional<boost::filesystem::path> relative_to_root (boost::filesystem::path root, boost::filesystem::path file);
90 extern FILE * fopen_boost (boost::filesystem::path, std::string);
91 extern std::string file_to_string (boost::filesystem::path, uintmax_t max_length = 65536);
92 extern std::string private_key_fingerprint (std::string key);
94 template <class F, class T>
95 std::list<boost::shared_ptr<T> >
96 list_of_type (std::list<boost::shared_ptr<F> > const & from)
98 std::list<boost::shared_ptr<T> > out;
99 for (typename std::list<boost::shared_ptr<F> >::const_iterator i = from.begin(); i != from.end(); ++i) {
100 boost::shared_ptr<T> check = boost::dynamic_pointer_cast<T> (*i);
102 out.push_back (check);