Commit | Line | Data |
---|---|---|
7087e187 GE |
1 | /*************************************************************************** |
2 | * Copyright (C) 2006 by Gerd v. Egidy * | |
3 | * gve@intra2net.com * | |
4 | * * | |
5 | * This library is free software; you can redistribute it and/or modify * | |
6 | * it under the terms of the GNU Lesser General Public License version * | |
7 | * 2.1 as published by the Free Software Foundation. * | |
8 | * * | |
9 | * This library 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 Lesser General Public License for more details. * | |
13 | * * | |
14 | * You should have received a copy of the GNU Lesser General Public * | |
15 | * License along with this program; if not, write to the * | |
16 | * Free Software Foundation, Inc., * | |
17 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * | |
18 | ***************************************************************************/ | |
19 | ||
20 | #include <string> | |
21 | #include <sstream> | |
22 | ||
23 | #include <boost/archive/binary_oarchive.hpp> | |
24 | #include <boost/archive/binary_iarchive.hpp> | |
25 | #include <boost/archive/xml_oarchive.hpp> | |
26 | #include <boost/archive/xml_iarchive.hpp> | |
27 | #include <boost/serialization/serialization.hpp> | |
7087e187 | 28 | |
8104c8f7 GE |
29 | #include <boost/bind.hpp> |
30 | ||
7087e187 GE |
31 | #include "command_client.hxx" |
32 | ||
8104c8f7 GE |
33 | #ifdef HAVE_CONFIG_H |
34 | #include <config.h> | |
35 | #endif | |
36 | ||
7087e187 GE |
37 | using namespace std; |
38 | ||
39 | namespace libt2n | |
40 | { | |
41 | ||
45a2ebc9 | 42 | command_client::command_client(client_connection& _c, long long _command_timeout_usec, long long _hello_timeout_usec) |
8104c8f7 GE |
43 | : c(_c) |
44 | { | |
45a2ebc9 GE |
45 | command_timeout_usec=_command_timeout_usec; |
46 | hello_timeout_usec=_hello_timeout_usec; | |
47 | ||
8104c8f7 GE |
48 | // for reconnects |
49 | c.add_callback(new_connection,bind(&command_client::read_hello, boost::ref(*this))); | |
50 | ||
51 | read_hello(); | |
52 | } | |
53 | ||
45a2ebc9 | 54 | std::string command_client::read_packet(const long long &usec_timeout) |
8104c8f7 | 55 | { |
8104c8f7 | 56 | string resultpacket; |
45a2ebc9 GE |
57 | bool got_packet=false; |
58 | long long my_timeout=usec_timeout; | |
59 | while(!(got_packet=c.get_packet(resultpacket)) && my_timeout > 0 && !c.is_closed()) | |
60 | c.fill_buffer(my_timeout,&my_timeout); | |
8104c8f7 | 61 | |
45a2ebc9 GE |
62 | if (!got_packet) |
63 | throw t2n_transfer_error("timeout exceeded"); | |
64 | ||
65 | return resultpacket; | |
66 | } | |
67 | ||
68 | void command_client::read_hello() | |
69 | { | |
70 | istringstream hello(read_packet(hello_timeout_usec)); | |
8104c8f7 GE |
71 | |
72 | char chk[5]; | |
73 | hello.read(chk,4); | |
74 | chk[4]=0; | |
75 | if (hello.fail() || hello.eof() || string("T2Nv") != chk) | |
76 | throw t2n_version_mismatch("illegal hello received (T2N)"); | |
77 | ||
78 | int prot_version; | |
79 | hello >> prot_version; | |
80 | if (hello.fail() || hello.eof() || prot_version != PROTOCOL_VERSION) | |
81 | throw t2n_version_mismatch("not compatible with the server protocol version"); | |
82 | ||
83 | hello.read(chk,1); | |
84 | if (hello.fail() || hello.eof() || chk[0] != ';') | |
85 | throw t2n_version_mismatch("illegal hello received (1. ;)"); | |
86 | ||
87 | hello.read(chk,4); | |
88 | if (hello.fail() || hello.eof() || *((int*)chk) != 1) | |
89 | throw t2n_version_mismatch("host byte order not matching"); | |
90 | ||
91 | hello.read(chk,1); | |
92 | if (hello.fail() || hello.eof() || chk[0] != ';') | |
93 | throw t2n_version_mismatch("illegal hello received (2. ;)"); | |
94 | } | |
95 | ||
7087e187 GE |
96 | void command_client::send_command(command* cmd, result_container &res) |
97 | { | |
98 | ostringstream ofs; | |
99 | command_container cc(cmd); | |
100 | boost::archive::binary_oarchive oa(ofs); | |
101 | ||
45a2ebc9 GE |
102 | try |
103 | { | |
104 | oa << cc; | |
105 | } | |
106 | catch(boost::archive::archive_exception &e) | |
107 | { | |
108 | ostringstream msg; | |
109 | msg << "archive_exception while serializing on client-side, code " << e.code << " (" << e.what() << ")"; | |
110 | throw t2n_serialization_error(msg.str()); | |
111 | } | |
112 | catch(...) | |
113 | { throw; } | |
7087e187 | 114 | |
d535333f GE |
115 | std::ostream* ostr; |
116 | if ((ostr=c.get_logstream(fulldebug))!=NULL) | |
117 | { | |
118 | (*ostr) << "sending command, decoded data: " << std::endl; | |
119 | boost::archive::xml_oarchive xo(*ostr); | |
120 | xo << BOOST_SERIALIZATION_NVP(cc); | |
121 | } | |
122 | ||
7087e187 GE |
123 | c.write(ofs.str()); |
124 | ||
45a2ebc9 | 125 | istringstream ifs(read_packet(command_timeout_usec)); |
7087e187 GE |
126 | boost::archive::binary_iarchive ia(ifs); |
127 | ||
45a2ebc9 GE |
128 | try |
129 | { | |
130 | ia >> res; | |
131 | } | |
132 | catch(boost::archive::archive_exception &e) | |
133 | { | |
134 | ostringstream msg; | |
135 | msg << "archive_exception while deserializing on client-side, code " << e.code << " (" << e.what() << ")"; | |
136 | throw t2n_serialization_error(msg.str()); | |
137 | } | |
138 | catch(...) | |
139 | { throw; } | |
d535333f GE |
140 | |
141 | if ((ostr=c.get_logstream(fulldebug))!=NULL) | |
142 | { | |
143 | (*ostr) << "received result, decoded data: " << std::endl; | |
144 | boost::archive::xml_oarchive xo(*ostr); | |
145 | xo << BOOST_SERIALIZATION_NVP(res); | |
146 | } | |
7087e187 GE |
147 | } |
148 | ||
149 | } |