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.
29 #include <boost/shared_ptr.hpp>
30 #include <boost/function.hpp>
31 #include <boost/filesystem.hpp>
32 #include <boost/optional.hpp>
44 class CertificateChain;
48 extern bool operator== (Size const & a, Size const & b);
49 extern bool operator!= (Size const & a, Size const & b);
50 extern std::ostream& operator<< (std::ostream& s, Size const & a);
52 extern std::string make_uuid ();
53 extern std::string make_digest (boost::filesystem::path filename, boost::function<void (float)>);
54 extern std::string content_kind_to_string (ContentKind kind);
55 extern ContentKind content_kind_from_string (std::string kind);
56 extern bool empty_or_white_space (std::string s);
57 extern boost::shared_ptr<OpenJPEGImage> decompress_j2k (uint8_t* data, int64_t size, int reduce);
58 extern boost::shared_ptr<OpenJPEGImage> decompress_j2k (Data data, int reduce);
59 extern Data compress_j2k (boost::shared_ptr<OpenJPEGImage>, int bandwith, int frames_per_second, bool threed, bool fourk);
60 extern bool ids_equal (std::string a, std::string b);
64 extern int base64_decode (std::string const & in, unsigned char* out, int out_length);
65 extern boost::optional<boost::filesystem::path> relative_to_root (boost::filesystem::path root, boost::filesystem::path file);
66 extern FILE * fopen_boost (boost::filesystem::path, std::string);
67 extern std::string file_to_string (boost::filesystem::path, uintmax_t max_length = 65536);
68 extern std::string private_key_fingerprint (std::string key);
69 extern xmlpp::Node* find_child (xmlpp::Node const * node, std::string name);
71 template <class F, class T>
72 std::list<boost::shared_ptr<T> >
73 list_of_type (std::list<boost::shared_ptr<F> > const & from)
75 std::list<boost::shared_ptr<T> > out;
76 for (typename std::list<boost::shared_ptr<F> >::const_iterator i = from.begin(); i != from.end(); ++i) {
77 boost::shared_ptr<T> check = boost::dynamic_pointer_cast<T> (*i);
79 out.push_back (check);