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premiere-libtorrent/include/libtorrent/error_code.hpp

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/*
Copyright (c) 2008-2014, Arvid Norberg
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the distribution.
* Neither the name of the author nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TORRENT_ERROR_CODE_HPP_INCLUDED
#define TORRENT_ERROR_CODE_HPP_INCLUDED
#include <boost/version.hpp>
#include "libtorrent/config.hpp"
#if defined TORRENT_WINDOWS || defined TORRENT_CYGWIN
// asio assumes that the windows error codes are defined already
#include <winsock2.h>
#endif
#if BOOST_VERSION < 103500
#include <asio/error_code.hpp>
#else
#include <boost/system/error_code.hpp>
#endif
#include "libtorrent/string_util.hpp" // for allocate_string_copy
#include <stdlib.h> // free
#ifndef BOOST_SYSTEM_NOEXCEPT
#define BOOST_SYSTEM_NOEXCEPT throw()
#endif
namespace libtorrent
{
namespace errors
{
// libtorrent uses boost.system's ``error_code`` class to represent errors. libtorrent has
// its own error category get_libtorrent_category() whith the error codes defined by error_code_enum.
enum error_code_enum
{
// Not an error
no_error = 0,
// Two torrents has files which end up overwriting each other
file_collision,
// A piece did not match its piece hash
failed_hash_check,
// The .torrent file does not contain a bencoded dictionary at
// its top level
torrent_is_no_dict,
// The .torrent file does not have an ``info`` dictionary
torrent_missing_info,
// The .torrent file's ``info`` entry is not a dictionary
torrent_info_no_dict,
// The .torrent file does not have a ``piece length`` entry
torrent_missing_piece_length,
// The .torrent file does not have a ``name`` entry
torrent_missing_name,
// The .torrent file's name entry is invalid
torrent_invalid_name,
// The length of a file, or of the whole .torrent file is invalid.
// Either negative or not an integer
torrent_invalid_length,
// Failed to parse a file entry in the .torrent
torrent_file_parse_failed,
// The ``pieces`` field is missing or invalid in the .torrent file
torrent_missing_pieces,
// The ``pieces`` string has incorrect length
torrent_invalid_hashes,
// The .torrent file has more pieces than is supported by libtorrent
too_many_pieces_in_torrent,
// The metadata (.torrent file) that was received from the swarm
// matched the info-hash, but failed to be parsed
invalid_swarm_metadata,
// The file or buffer is not correctly bencoded
invalid_bencoding,
// The .torrent file does not contain any files
no_files_in_torrent,
// The string was not properly url-encoded as expected
invalid_escaped_string,
// Operation is not permitted since the session is shutting down
session_is_closing,
// There's already a torrent with that info-hash added to the
// session
duplicate_torrent,
// The supplied torrent_handle is not referring to a valid torrent
invalid_torrent_handle,
// The type requested from the entry did not match its type
invalid_entry_type,
// The specified URI does not contain a valid info-hash
missing_info_hash_in_uri,
// One of the files in the torrent was unexpectadly small. This
// might be caused by files being changed by an external process
file_too_short,
// The URL used an unknown protocol. Currently ``http`` and
// ``https`` (if built with openssl support) are recognized. For
// trackers ``udp`` is recognized as well.
unsupported_url_protocol,
// The URL did not conform to URL syntax and failed to be parsed
url_parse_error,
// The peer sent a 'piece' message of length 0
peer_sent_empty_piece,
// A bencoded structure was currupt and failed to be parsed
parse_failed,
// The fast resume file was missing or had an invalid file version
// tag
invalid_file_tag,
// The fast resume file was missing or had an invalid info-hash
missing_info_hash,
// The info-hash did not match the torrent
mismatching_info_hash,
// The URL contained an invalid hostname
invalid_hostname,
// The URL had an invalid port
invalid_port,
// The port is blocked by the port-filter, and prevented the
// connection
port_blocked,
// The IPv6 address was expected to end with ']'
expected_close_bracket_in_address,
// The torrent is being destructed, preventing the operation to
// succeed
destructing_torrent,
// The connection timed out
timed_out,
// The peer is upload only, and we are upload only. There's no point
// in keeping the connection
upload_upload_connection,
// The peer is upload only, and we're not interested in it. There's
// no point in keeping the connection
uninteresting_upload_peer,
// The peer sent an unknown info-hash
invalid_info_hash,
// The torrent is paused, preventing the operation from succeeding
torrent_paused,
// The peer sent an invalid have message, either wrong size or
// referring to a piece that doesn't exist in the torrent
invalid_have,
// The bitfield message had the incorrect size
invalid_bitfield_size,
// The peer kept requesting pieces after it was choked, possible
// abuse attempt.
too_many_requests_when_choked,
// The peer sent a piece message that does not correspond to a
// piece request sent by the client
invalid_piece,
// memory allocation failed
no_memory,
// The torrent is aborted, preventing the operation to succeed
torrent_aborted,
// The peer is a connection to ourself, no point in keeping it
self_connection,
// The peer sent a piece message with invalid size, either negative
// or greater than one block
invalid_piece_size,
// The peer has not been interesting or interested in us for too
// long, no point in keeping it around
timed_out_no_interest,
// The peer has not said anything in a long time, possibly dead
timed_out_inactivity,
// The peer did not send a handshake within a reasonable amount of
// time, it might not be a bittorrent peer
timed_out_no_handshake,
// The peer has been unchoked for too long without requesting any
// data. It might be lying about its interest in us
timed_out_no_request,
// The peer sent an invalid choke message
invalid_choke,
// The peer send an invalid unchoke message
invalid_unchoke,
// The peer sent an invalid interested message
invalid_interested,
// The peer sent an invalid not-interested message
invalid_not_interested,
// The peer sent an invalid piece request message
invalid_request,
// The peer sent an invalid hash-list message (this is part of the
// merkle-torrent extension)
invalid_hash_list,
// The peer sent an invalid hash-piece message (this is part of the
// merkle-torrent extension)
invalid_hash_piece,
// The peer sent an invalid cancel message
invalid_cancel,
// The peer sent an invalid DHT port-message
invalid_dht_port,
// The peer sent an invalid suggest piece-message
invalid_suggest,
// The peer sent an invalid have all-message
invalid_have_all,
// The peer sent an invalid have none-message
invalid_have_none,
// The peer sent an invalid reject message
invalid_reject,
// The peer sent an invalid allow fast-message
invalid_allow_fast,
// The peer sent an invalid extesion message ID
invalid_extended,
// The peer sent an invalid message ID
invalid_message,
// The synchronization hash was not found in the encrypted handshake
sync_hash_not_found,
// The encryption constant in the handshake is invalid
invalid_encryption_constant,
// The peer does not support plaintext, which is the selected mode
no_plaintext_mode,
// The peer does not support rc4, which is the selected mode
no_rc4_mode,
// The peer does not support any of the encryption modes that the
// client supports
unsupported_encryption_mode,
// The peer selected an encryption mode that the client did not
// advertise and does not support
unsupported_encryption_mode_selected,
// The pad size used in the encryption handshake is of invalid size
invalid_pad_size,
// The encryption handshake is invalid
invalid_encrypt_handshake,
// The client is set to not support incoming encrypted connections
// and this is an encrypted connection
no_incoming_encrypted,
// The client is set to not support incoming regular bittorrent
// connections, and this is a regular connection
no_incoming_regular,
// The client is already connected to this peer-ID
duplicate_peer_id,
// Torrent was removed
torrent_removed,
// The packet size exceeded the upper sanity check-limit
packet_too_large,
reserved,
// The web server responded with an error
http_error,
// The web server response is missing a location header
missing_location,
// The web seed redirected to a path that no longer matches the
// .torrent directory structure
invalid_redirection,
// The connection was closed becaused it redirected to a different
// URL
redirecting,
// The HTTP range header is invalid
invalid_range,
// The HTTP response did not have a content length
no_content_length,
// The IP is blocked by the IP filter
banned_by_ip_filter,
// At the connection limit
too_many_connections,
// The peer is marked as banned
peer_banned,
// The torrent is stopping, causing the operation to fail
stopping_torrent,
// The peer has sent too many corrupt pieces and is banned
too_many_corrupt_pieces,
// The torrent is not ready to receive peers
torrent_not_ready,
// The peer is not completely constructed yet
peer_not_constructed,
// The session is closing, causing the operation to fail
session_closing,
// The peer was disconnected in order to leave room for a
// potentially better peer
optimistic_disconnect,
// The torrent is finished
torrent_finished,
// No UPnP router found
no_router,
// The metadata message says the metadata exceeds the limit
metadata_too_large,
// The peer sent an invalid metadata request message
invalid_metadata_request,
// The peer advertised an invalid metadata size
invalid_metadata_size,
// The peer sent a message with an invalid metadata offset
invalid_metadata_offset,
// The peer sent an invalid metadata message
invalid_metadata_message,
// The peer sent a peer exchange message that was too large
pex_message_too_large,
// The peer sent an invalid peer exchange message
invalid_pex_message,
// The peer sent an invalid tracker exchange message
invalid_lt_tracker_message,
// The peer sent an pex messages too often. This is a possible
// attempt of and attack
too_frequent_pex,
// The operation failed because it requires the torrent to have
// the metadata (.torrent file) and it doesn't have it yet.
// This happens for magnet links before they have downloaded the
// metadata, and also torrents added by URL.
no_metadata,
// The peer sent an invalid ``dont_have`` message. The dont have
// message is an extension to allow peers to advertise that the
// no longer has a piece they previously had.
invalid_dont_have,
// The peer tried to connect to an SSL torrent without connecting
// over SSL.
requires_ssl_connection,
// The peer tried to connect to a torrent with a certificate
// for a different torrent.
invalid_ssl_cert,
// the torrent is not an SSL torrent, and the operation requires
// an SSL torrent
not_an_ssl_torrent,
// peer was banned because its listen port is within a banned port
// range, as specified by the port_filter.
banned_by_port_filter,
// The NAT-PMP router responded with an unsupported protocol version
unsupported_protocol_version = 120,
// You are not authorized to map ports on this NAT-PMP router
natpmp_not_authorized,
// The NAT-PMP router failed because of a network failure
network_failure,
// The NAT-PMP router failed because of lack of resources
no_resources,
// The NAT-PMP router failed because an unsupported opcode was sent
unsupported_opcode,
// The resume data file is missing the 'file sizes' entry
missing_file_sizes = 130,
// The resume data file 'file sizes' entry is empty
no_files_in_resume_data,
// The resume data file is missing the 'pieces' and 'slots' entry
missing_pieces,
// The number of files in the resume data does not match the number
// of files in the torrent
mismatching_number_of_files,
// One of the files on disk has a different size than in the fast
// resume file
mismatching_file_size,
// One of the files on disk has a different timestamp than in the
// fast resume file
mismatching_file_timestamp,
// The resume data file is not a dictionary
not_a_dictionary,
// The 'blocks per piece' entry is invalid in the resume data file
invalid_blocks_per_piece,
// The resume file is missing the 'slots' entry, which is required
// for torrents with compact allocation
missing_slots,
// The resume file contains more slots than the torrent
too_many_slots,
// The 'slot' entry is invalid in the resume data
invalid_slot_list,
// One index in the 'slot' list is invalid
invalid_piece_index,
// The pieces on disk needs to be re-ordered for the specified
// allocation mode. This happens if you specify sparse allocation
// and the files on disk are using compact storage. The pieces needs
// to be moved to their right position
pieces_need_reorder,
// this error is returned when asking to save resume data and
// specifying the flag to only save when there's anything new to save
// (torrent_handle::only_if_modified) and there wasn't anything changed.
resume_data_not_modified,
// The HTTP header was not correctly formatted
http_parse_error = 150,
// The HTTP response was in the 300-399 range but lacked a location
// header
http_missing_location,
// The HTTP response was encoded with gzip or deflate but
// decompressing it failed
http_failed_decompress,
// The URL specified an i2p address, but no i2p router is configured
no_i2p_router = 160,
// The tracker URL doesn't support transforming it into a scrape
// URL. i.e. it doesn't contain "announce.
scrape_not_available = 170,
// invalid tracker response
invalid_tracker_response,
// invalid peer dictionary entry. Not a dictionary
invalid_peer_dict,
// tracker sent a failure message
tracker_failure,
// missing or invalid 'files' entry
invalid_files_entry,
// missing or invalid 'hash' entry
invalid_hash_entry,
// missing or invalid 'peers' and 'peers6' entry
invalid_peers_entry,
// udp tracker response packet has invalid size
invalid_tracker_response_length,
// invalid transaction id in udp tracker response
invalid_tracker_transaction_id,
// invalid action field in udp tracker response
invalid_tracker_action,
#ifndef TORRENT_NO_DEPRECATE
// expected string in bencoded string
expected_string = 190,
// expected colon in bencoded string
expected_colon,
// unexpected end of file in bencoded string
unexpected_eof,
// expected value (list, dict, int or string) in bencoded string
expected_value,
// bencoded recursion depth limit exceeded
depth_exceeded,
// bencoded item count limit exceeded
limit_exceeded,
// integer overflow
overflow,
#endif
// the number of error codes
error_code_max
};
// HTTP errors are reported in the libtorrent::http_category, with error code enums in
// the ``libtorrent::errors`` namespace.
enum http_errors
{
cont = 100,
ok = 200,
created = 201,
accepted = 202,
no_content = 204,
multiple_choices = 300,
moved_permanently = 301,
moved_temporarily = 302,
not_modified = 304,
bad_request = 400,
unauthorized = 401,
forbidden = 403,
not_found = 404,
internal_server_error = 500,
not_implemented = 501,
bad_gateway = 502,
service_unavailable = 503
};
}
}
#if BOOST_VERSION >= 103500
namespace boost { namespace system {
template<> struct is_error_code_enum<libtorrent::errors::error_code_enum>
{ static const bool value = true; };
template<> struct is_error_condition_enum<libtorrent::errors::error_code_enum>
{ static const bool value = true; };
} }
#endif
namespace libtorrent
{
#if BOOST_VERSION < 103500
typedef asio::error_code error_code;
// hidden
inline asio::error::error_category posix_category()
{ return asio::error::system_category; }
// hidden
inline asio::error::error_category system_category()
{ return asio::error::system_category; }
// hidden
boost::system::error_category const& get_libtorrent_category()
{
static ::asio::error::error_category libtorrent_category(20);
return libtorrent_category;
}
// hidden
boost::system::error_category const& get_http_category()
{
static ::asio::error::error_category http_category(21);
return http_category;
}
#else
// return the instance of the libtorrent_error_category which
// maps libtorrent error codes to human readable error messages.
TORRENT_EXPORT boost::system::error_category& get_libtorrent_category();
// returns the error_category for HTTP errors
TORRENT_EXPORT boost::system::error_category& get_http_category();
namespace errors
{
// hidden
inline boost::system::error_code make_error_code(error_code_enum e)
{
return boost::system::error_code(e, get_libtorrent_category());
}
}
using boost::system::error_code;
// hidden
inline boost::system::error_category const& system_category()
#if BOOST_VERSION < 104400
{ return boost::system::get_system_category(); }
#else
{ return boost::system::system_category(); }
#endif
// hidden
inline boost::system::error_category const& get_posix_category()
#if BOOST_VERSION < 103600
{ return boost::system::get_posix_category(); }
#elif BOOST_VERSION < 104400
{ return boost::system::get_generic_category(); }
#else
{ return boost::system::generic_category(); }
#endif // BOOST_VERSION < 103600
#endif // BOOST_VERSION < 103500
// internal
inline boost::system::error_category const& generic_category()
{ return get_posix_category(); }
#ifndef BOOST_NO_EXCEPTIONS
struct TORRENT_EXPORT libtorrent_exception: std::exception
{
libtorrent_exception(error_code const& s): m_error(s), m_msg(0) {}
virtual const char* what() const throw();
virtual ~libtorrent_exception() throw();
error_code error() const { return m_error; }
private:
error_code m_error;
mutable char* m_msg;
};
#endif
// used by storage to return errors
// also includes which underlying file the
// error happened on
struct TORRENT_EXPORT storage_error
{
storage_error(): file(-1), operation(0) {}
storage_error(error_code e): ec(e), file(-1), operation(0) {}
operator bool() const { return ec.value() != 0; }
// the error that occurred
error_code ec;
// the file the error occurred on
boost::int32_t file:24;
// A code from file_operation_t enum, indicating what
// kind of operation failed.
boost::uint32_t operation:8;
enum file_operation_t {
none,
stat,
mkdir,
open,
rename,
remove,
copy,
read,
write,
fallocate,
alloc_cache_piece,
partfile_move,
partfile_read,
partfile_write,
};
// Returns a string literal representing the file operation
// that failed. If there were no failure, it returns
// an empty string.
char const* operation_str() const
{
char const* ops[] =
{
"", "stat", "mkdir", "open", "rename", "remove", "copy"
, "read", "write", "fallocate", "allocate cache piece"
, "partfile move", "partfile read", "partfile write"
};
return ops[operation];
}
};
}
#endif
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