aria2 is a lightweight multi-protocol & multi-source, cross platform download utility operated in command-line. It supports HTTP/HTTPS, FTP, SFTP, BitTorrent and Metalink.
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Tatsuhiro Tsujikawa 40cb1ca9ce 2006-03-27 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>
* configure.in: Added gnutls support. Added several CPP macros.
	* m4/openssl.m4: Added.
	* src/SocketCore.{h,cc}: Drop const quarifier from writeData(),
	readData(), peekData(). Added gnutls support.
	* src/HttpDownloadCommand.cc: Removed SleepCommand.h
	* src/TrackerWatcherCommand.{h,cc}: Added. This command creates
	TrackerInitCommand periodicaly(TorrentMan::minInterval).
	* src/TorrentMan.cc: Remove downloadedSize == 0 check from 
save().
	Instead, added a check for whether setup method has executed
	successfully.
	* src/TorrentMan.h: Added member vaiable setupComplete. Updated
	DEFAULT_ANNOUNCE_INTERVAL and DEFAULT_ANNOUNCE_MIN_INTERVAL to 
300.
	* src/Makefile.am: Updated.
	* src/messageDigest.h: Added. This is a macro calculating SHA1 
digest
	using whether OpenSSL or gcrypt, depending on the result of 
configure
	script.
	* src/ShaVisitor.{h,cc}: Removed direct	dependency on OpenSSL by 
using
	messageDigest.h. 
	* src/TorrentAutoSaveCommand.h: Removed unused variable cuid.
	* src/PeerListenCommand.cc: Added log about port binded 
successfully.
	Fixed memory leak.
	* src/main.cc: Added gnutls support. Replaced LIB_SSL with
	ENABLE_BITTORRENT where they are not related to OpenSSL but 
BitTorrent.
	Removed instantiation of TrackerInitCommand. Instead,
	TrackerWatcherCommand is instantiated and pushed to the command 
queue.
	* src/InitiateConnectionCommandFactory.cc: Replaced HAVE_LIBSSL 
with
	ENABLE_SSL.
	* src/Request.cc: Replaced HAVE_LIBSSL with ENABLE_SSL.
	* src/RequestSlotMan.cc:
	(deleteCompletedRequestSlot)
	If a piece is already acquired by another command, delete the 
request
	slots for the piece.
	* src/TrackerUpdateCommand.cc:
	(execute)
	Changed log level of MSG_TRACKER_WARNING_MESSAGE from info to 
warn.
	Added a check whether peer list is null.
	Fixed the bug that causes sending completed event to the tracker
	several times.
	* src/TrackerInitCommand.cc:
	(execute)
	Fixed the bug that causes sending completed event to the tracker
	several times.
	* src/AbstractDiskWriter.{h,cc}: Removed direct dependency on 
OpenSSL
	by using messageDigest.h.
	
	
2006-03-26  Tatsuhiro Tsujikawa  <tujikawa at rednoah dot com>

	* PeerConnection.cc: Replaced log message "keep-alive" with
	"keep alive".
	* PeerInteractionCommand.{h,cc}: Close connection if peer is 
choking
	localhost long time.
	* TorrentMan.cc: When adding new peer with duplicate = true, if 
the
	number of peer list is equal to or grater than MAX_PEER_LIST, 
delete
	at most 100 failure entry from the list. If with duplicate = 
false,
	MAX_PEER_LIST is not checked.
	* PeerListenCommand.cc: Fixed the argument order of log message.

2006-03-25  Tatsuhiro Tsujikawa  <tujikawa at rednoah dot com>

	* Logger.h: Moved enum LEVEL from SimpleLogger.h to here.
	Added warn().
	* SimpleLogger.h: Moved enum LEVEL to Logger.h.
	Implemented warn().
	Defined 2 macros(WRITE_LOG, WRITE_LOG_EX) to avoid duplicated 
code.
2006-03-27 14:47:26 +00:00
intl Added intl/* 2006-03-07 13:08:09 +00:00
lib * DownloadEngine.{h, cc}: 2006-03-02 10:43:00 +00:00
m4 2006-03-27 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com> 2006-03-27 14:47:26 +00:00
po * Request.h: Added AFTER_COMPLETED event. 2006-03-24 11:59:18 +00:00
src 2006-03-27 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com> 2006-03-27 14:47:26 +00:00
test 2006-03-27 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com> 2006-03-27 14:47:26 +00:00
ABOUT-NLS * DownloadEngine.{h, cc}: 2006-03-02 10:43:00 +00:00
aclocal.m4 2006-03-27 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com> 2006-03-27 14:47:26 +00:00
AUTHORS Initial import 2006-02-17 13:35:04 +00:00
ChangeLog 2006-03-27 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com> 2006-03-27 14:47:26 +00:00
config.guess Initial import 2006-02-17 13:35:04 +00:00
config.h.in 2006-03-27 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com> 2006-03-27 14:47:26 +00:00
config.rpath * DownloadEngine.{h, cc}: 2006-03-02 10:43:00 +00:00
config.sub Initial import 2006-02-17 13:35:04 +00:00
configure 2006-03-27 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com> 2006-03-27 14:47:26 +00:00
configure.in 2006-03-27 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com> 2006-03-27 14:47:26 +00:00
COPYING Initial import 2006-02-17 13:35:04 +00:00
depcomp Initial import 2006-02-17 13:35:04 +00:00
INSTALL Initial import 2006-02-17 13:35:04 +00:00
install-sh Initial import 2006-02-17 13:35:04 +00:00
Makefile.am Added intl/* 2006-03-07 13:08:09 +00:00
Makefile.in 2006-03-27 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com> 2006-03-27 14:47:26 +00:00
missing Initial import 2006-02-17 13:35:04 +00:00
mkinstalldirs * DownloadEngine.{h, cc}: 2006-03-02 10:43:00 +00:00
NEWS Initial import 2006-02-17 13:35:04 +00:00
README 2006-03-27 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com> 2006-03-27 14:47:26 +00:00
stamp-h Initial import 2006-02-17 13:35:04 +00:00
stamp-h.in Initial import 2006-02-17 13:35:04 +00:00
TODO added bittorrent support(experimental) 2006-03-21 14:12:51 +00:00

aria2 - a simple utility for downloading files.

1. Disclaimer
-------------
This program comes with no warranty.
You must use this program at your own risk.

2. About aria2
--------------
aria2 has segmented downloading engine in its core. By segmented downloading,
it can download files very much faster than ordinary browsers.

aria2 is in very early development stage. Currently it has following features:
* HTTP/HTTPS GET support
* HTTP Proxy support
* HTTP BASIC authentication support
* HTTP Proxy authentication support
* FTP support(active, passive mode)
* FTP through HTTP proxy(GET command or tunneling)
* Segmented download
* Cookie support(currently aria2 ignores "expires")
* It can run as a daemon process.
* BitTorrent protocol support

3. How to build
---------------
$ ./configure
$ make

The executable is aria2c in src directory.

4. Dependency
-------------
In order to enable HTTPS support, you need GNUTLS or OpenSSL.
In order to enable BitTorrent support, you need GCRYPT(if you choose GNUTLS)
or OpenSSL.

GNUTLS has precedence over OpenSSL if both libraries are installed.

5. BitTorrrent
--------------
The filename of the downloaded file is determined as follows:

single-file mode:
    If "name" key is present in .torrent file, filename is the value of "name"
    key. Otherwise, filename is the basename of .torrent file appended by
    ".file". For example, .torrent file is "test.torrrent", then filename is
    "test.torrent.file".
    The directory to store the downloaded file can be specified by -d option.
multi-file mode:
    The complete directory/file structure mentioned in .torrent file is
    created.
    The directory to store the top directory of downloaded files can be
    specified by -d option.

In both mode, aria2 needs at least 2 times more disk space than the file size
itself because it creates complete temporary file.

Note:
*  -o option is used to change the filename of downloaded .torrent file.
* This version only supports compact peers list format.
* The ports aria2c uses are 6881-6999.
* The maximum number of peers is 55.