aria2 is a lightweight multi-protocol & multi-source command-linedownload utility. It supports HTTP/HTTPS, FTP, SFTP,BitTorrent and Metalink. aria2 can be manipulated via built-inJSON-RPC and XML-RPC interfaces.
Download version 1.35.0.There you can download source distribution and binaries for OS X, Windows and Android.
The legacy releases earlier than 1.19.1 are availablehere.
Aria2 is a lightweight multi-protocol & multi-source command-line download utility.It supports HTTP/HTTPS, FTP, SFTP, BitTorrent and Metalink. Aria2 can be manipulated via built-in JSON-RPC and XML-RPC interfaces. Aug 26, 2017 With the commencement of a Kickstarter for a new Dub for Aria I figured that it would be a great time to talk about the anime briefly. For those people who have either never watched it or even. Apr 15, 2011 Looking for information on the anime Hidan no Aria (Aria the Scarlet Ammo)? Find out more with MyAnimeList, the world's most active online anime and manga community and database. In response to the worsening crime rate, Japan creates Tokyo Butei High, an elite academy where 'Butei' or armed detectives hone their deadly skills in hopes of becoming mercenary-like agents of justice.
Multi-Connection Download.aria2 can download a filefrom multiple sources/protocols and tries to utilize yourmaximum download bandwidth. Really speeds up your downloadexperience.
Lightweight.aria2 doesn’t require much memory and CPU time. When disk cache isoff, the physical memory usage is typically 4MiB (normalHTTP/FTP downloads) to 9MiB (BitTorrent downloads). CPU usage inBitTorrent with download speed of 2.8MiB/sec is around 6%.
Fully Featured BitTorrent Client.All features you want in BitTorrent client are available: DHT,PEX, Encryption, Magnet URI, Web-Seeding, Selective Downloads,Local Peer Discovery and UDP tracker.
Metalink Enabled.aria2 supports The Metalink Download Description Format(aka Metalink v4),Metalink version 3 andMetalink/HTTP.Metalink offers the file verification, HTTP/FTP/SFTP/BitTorrent integrationand the various configurations for language, location, OS, etc.
Remote Control.aria2 supports RPC interface to control the aria2 process.The supported interfaces are JSON-RPC (over HTTP and WebSocket)and XML-RPC.
Command-line scares you off? No, aria2 is really easy to use!!
Download from WEB:
Download from 2 sources:
Download using 2 connections per host:
BitTorrent:
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BitTorrent Magnet URI:
Metalink:
Download URIs found in text file:
This program is free software; you can redistribute it and/or modifyit under the terms of the GNU General Public License as published bythe Free Software Foundation; either version 2 of the License, or (atyour option) any later version.
This program comes with no warranty.You must use this program at your own risk.
aria2 is a utility for downloading files. The supported protocols areHTTP(S), FTP, SFTP, BitTorrent, and Metalink. aria2 can download afile from multiple sources/protocols and tries to utilize your maximumdownload bandwidth. It supports downloading a file fromHTTP(S)/FTP/SFTP and BitTorrent at the same time, while the datadownloaded from HTTP(S)/FTP/SFTP is uploaded to the BitTorrentswarm. Using Metalink's chunk checksums, aria2 automatically validateschunks of data while downloading a file like BitTorrent.
The project page is located at https://aria2.github.io/.
See aria2 Online Manual (Russian translation, Portuguesetranslation) to learnhow to use aria2.
Here is a list of features:
http_proxy
,https_proxy
, ftp_proxy
, all_proxy
and no_proxy
We use 3 numbers for aria2 version: MAJOR.MINOR.PATCH. We will shipMINOR update on 15th of every month. We may skip a release if we haveno changes since the last release. The feature and documentationfreeze happens 10 days before the release day (5th day of the month)for translation teams. We will raise an issue about the upcomingrelease around that day.
We may release PATCH releases between regular releases if we havesecurity issues.
MAJOR version will stay at 1 for the time being.
We maintain the source code at Github:https://github.com/aria2/aria2
To get the latest source code, run following command:
This will create aria2 directory in your current directory and sourcefiles are stored there.
features | dependency |
---|---|
HTTPS | OSX or GnuTLS or OpenSSL or Windows |
SFTP | libssh2 |
BitTorrent | None. Optional: libnettle+libgmp or libgcryptor OpenSSL (see note) |
Metalink | libxml2 or Expat. |
Checksum | None. Optional: OSX or libnettle or libgcryptor OpenSSL or Windows (see note) |
gzip, deflate in HTTP | zlib |
Async DNS | C-Ares |
Firefox3/Chromium cookie | libsqlite3 |
XML-RPC | libxml2 or Expat. |
JSON-RPC over WebSocket | libnettle or libgcrypt or OpenSSL |
Note
libxml2 has precedence over Expat if both libraries are installed.If you prefer Expat, run configure with --without-libxml2
.
Note
On Apple OSX the OS-level SSL/TLS support will be preferred. Henceneither GnuTLS nor OpenSSL are required on that platform. If you'dlike to disable this behavior, run configure with--without-appletls
.
GnuTLS has precedence over OpenSSL if both libraries are installed.If you prefer OpenSSL, run configure with --without-gnutls
--with-openssl
.
On Windows there is SSL implementation available that is based onthe native Windows SSL capabilities (Schannel) and it will bepreferred. Hence neither GnuTLS nor OpenSSL are required on thatplatform. If you'd like to disable this behavior, run configurewith --without-wintls
.
Note
On Apple OSX the OS-level checksum support will be preferred,unless aria2 is configured with --without-appletls
.
libnettle has precedence over libgcrypt if both libraries areinstalled. If you prefer libgcrypt, run configure with--without-libnettle--with-libgcrypt
. If OpenSSL is selected overGnuTLS, neither libnettle nor libgcrypt will be used.
If none of the optional dependencies are installed, an internalimplementation that only supports md5 and sha1 will be used.
On Windows there is SSL implementation available that is based onthe native Windows capabilities and it will be preferred, unlessaria2 is configured with --without-wintls
.
A user can have one of the following configurations for SSL and cryptolibraries:
You can disable BitTorrent and Metalink support by providing--disable-bittorrent
and --disable-metalink
to the configurescript respectively.
In order to enable async DNS support, you need c-ares.
aria2 is primarily written in C++. Initially it was written based onC++98/C++03 standard features. We are now migrating aria2 to C++11standard. The current source code requires C++11 aware compiler. Forwell-known compilers, such as g++ and clang, the -std=c++11
or-std=c++0x
flag must be supported.
In order to build aria2 from the source package, you need followingdevelopment packages (package name may vary depending on thedistribution you use):
You can use libgcrypt-dev instead of nettle-dev and libgmp-dev:
You can use libssl-dev instead oflibgnutls-dev, nettle-dev, libgmp-dev, libgpg-error-dev and libgcrypt-dev:
You can use libexpat1-dev instead of libxml2-dev:
On Fedora you need the following packages: gcc, gcc-c++, kernel-devel,libgcrypt-devel, libxml2-devel, openssl-devel, gettext-devel, cppunit
If you downloaded source code from git repository, you have to installfollowing packages to get autoconf macros:
And run following command to generate configure script and other filesnecessary to build the program:
Also you need Sphinx to build man page.
If you are building aria2 for Mac OS X, take a look atthe makerelease-osx.mk GNU Make makefile.
The quickest way to build aria2 is first run configure script:
To build statically linked aria2, use ARIA2_STATIC=yes
command-line option:
After configuration is done, run make
to compile the program:
See Cross-compiling Windows binary to create a Windows binary.See Cross-compiling Android binary to create an Android binary.
The configure script checks available libraries and enables as manyfeatures as possible except for experimental features not enabled bydefault.
Since 1.1.0, aria2 checks the certificate of HTTPS servers by default.If you build with OpenSSL or the recent version of GnuTLS which hasgnutls_certificate_set_x509_system_trust()
function and thelibrary is properly configured to locate the system-wide CAcertificates store, aria2 will automatically load those certificatesat the startup. If it is not the case, I recommend to supply the pathto the CA bundle file. For example, in Debian the path to CA bundlefile is '/etc/ssl/certs/ca-certificates.crt' (in ca-certificatespackage). This may vary depending on your distribution. You can giveit to configure script using --with-ca-bundleoption
:
Without --with-ca-bundle
option, you will encounter the error whenaccessing HTTPS servers because the certificate cannot be verifiedwithout CA bundle. In such case, you can specify the CA bundle fileusing aria2's --ca-certificate
option. If you don't have CA bundlefile installed, then the last resort is disable the certificatevalidation using --check-certificate=false
.
Using the native OSX (AppleTLS) and/or Windows (WinTLS) implementationwill automatically use the system certificate store, so--with-ca-bundle
is not necessary and will be ignored when usingthese implementations.
By default, the bash_completion file named aria2c
is installed tothe directory $prefix/share/doc/aria2/bash_completion
. To changethe install directory of the file, use --with-bashcompletiondir
option.
After a make
the executable is located at src/aria2c
.
aria2 uses CppUnit for automated unit testing. To run the unit test:
In this section, we describe how to build a Windows binary using amingw-w64 (http://mingw-w64.org/doku.php) cross-compiler on DebianLinux. The MinGW (http://www.mingw.org/) may not be able to buildaria2.
The easiest way to build Windows binary is use Dockerfile.mingw. SeeDockerfile.mingw how to build binary. If you cannot use Dockerfile,then continue to read following paragraphs.
Basically, after compiling and installing depended libraries, you cando cross-compile just passing appropriate --host
option andspecifying CPPFLAGS
, LDFLAGS
and PKG_CONFIG_LIBDIR
variables to configure. For convenience and lowering our owndevelopment cost, we provide easier way to configure the buildsettings.
mingw-config
script is a configure script wrapper for mingw-w64.We use it to create official Windows build. This script assumesfollowing libraries have been built for cross-compile:
Some environment variables can be adjusted to change build settings:
HOST
HOST
. It defaults toi686-w64-mingw32
. To build 64bit binary, specifyx86_64-w64-mingw32
.PREFIX
/usr/local/$HOST
. -I$PREFIX/include
will beadded to CPPFLAGS
. -L$PREFIX/lib
will be added toLDFLAGS
. $PREFIX/lib/pkgconfig
will be set toPKG_CONFIG_LIBDIR
.For example, to build 64bit binary do this:
If you want libaria2 dll with --enable-libaria2
, then don't useARIA2_STATIC=yes
and prepare the DLL version of externallibraries.
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In this section, we describe how to build Android binary using AndroidNDK cross-compiler on Debian Linux.
At the time of this writing, Android NDK r20 should compile aria2without errors.
android-config
script is a configure script wrapper for Androidbuild. We use it to create official Android build. This scriptassumes the following libraries have been built for cross-compile:
When building the above libraries, make sure that disable sharedlibrary and enable only static library. We are going to link thoselibraries statically.
android-config
assumes that $ANDROID_HOME
and $NDK
environment variables are defined.
We currently use Android NDK r20. $NDK
should point to thedirectory to Anroid NDK. The build tools will be found under$NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/
.
All the dependent libraries must be installed under$ANDROID_HOME/usr/local
.
After android-config
, run make
to compile sources.
Sphinx is used to build thedocumentation. aria2 man pages will be build when you run make
ifthey are not up-to-date. You can also build HTML version of aria2 manpage by makehtml
. The HTML version manual is also available atonline (Russiantranslation, Portuguesetranslation).
The file name of the downloaded file is determined as follows:
Before download starts, a complete directory structure is created ifneeded. By default, aria2 opens at most 100 files mentioned in.torrent file, and directly writes to and reads from these files.The number of files to open simultaneously can be controlled by--bt-max-open-files
option.
aria2 supports mainline compatible DHT. By default, the routing tablefor IPv4 DHT is saved to $XDG_CACHE_HOME/aria2/dht.dat
and therouting table for IPv6 DHT is saved to$XDG_CACHE_HOME/aria2/dht6.dat
unless files exist at$HOME/.aria2/dht.dat
or $HOME/.aria2/dht6.dat
. aria2 uses sameport number to listen on for both IPv4 and IPv6 DHT.
UDP tracker support is enabled when IPv4 DHT is enabled. The portnumber of UDP tracker is shared with DHT. Use --dht-listen-port
option to change the port number.
-o
option is used to change the file name of .torrent file itself,not a file name of a file in .torrent file. For this purpose, use--index-out
option instead.--bt-request-peer-speed-limit
option.The current implementation supports HTTP(S)/FTP/SFTP/BitTorrent. Theother P2P protocols are ignored. Both Metalink4 (RFC 5854) andMetalink version 3.0 documents are supported.
For checksum verification, md5, sha-1, sha-224, sha-256, sha-384 andsha-512 are supported. If multiple hash algorithms are provided, aria2uses stronger one. If whole file checksum verification fails, aria2doesn't retry the download and just exits with non-zero return code.
The supported user preferences are version, language, location,protocol and os.
If chunk checksums are provided in Metalink file, aria2 automaticallyvalidates chunks of data during download. This behavior can be turnedoff by a command-line option.
If signature is included in a Metalink file, aria2 saves it as a fileafter the completion of the download. The file name is downloadfile name + '.sig'. If same file already exists, the signature file isnot saved.
In Metalink4, multi-file torrent could appear in metalink:metaurlelement. Since aria2 cannot download 2 same torrents at the sametime, aria2 groups files in metalink:file element which has sameBitTorrent metaurl and downloads them from a single BitTorrent swarm.This is basically multi-file torrent download with file selection, sothe adjacent files which is not in Metalink document but shares samepiece with selected file are also created.
If relative URI is specified in metalink:url or metalink:metaurlelement, aria2 uses the URI of Metalink file as base URI to resolvethe relative URI. If relative URI is found in Metalink file which isread from local disk, aria2 uses the value of --metalink-base-uri
option as base URI. If this option is not specified, the relative URIwill be ignored.
The current implementation only uses rel=duplicate links only. aria2understands Digest header fields and check whether it matches thedigest value from other sources. If it differs, drop connection.aria2 also uses this digest value to perform checksum verificationafter download finished. aria2 recognizes geo value. To tell aria2which location you prefer, you can use --metalink-location
option.
netrc support is enabled by default for HTTP(S)/FTP/SFTP. To disablenetrc support, specify -n command-line option. Your .netrc fileshould have correct permissions(600).
The WebSocket server embedded in aria2 implements the specificationdefined in RFC 6455. The supported protocol version is 13.
The libaria2 is a C++ library which offers aria2 functionality to theclient code. Currently, libaria2 is not built by default. To enablelibaria2, use --enable-libaria2
configure option. By default,only the shared library is built. To build static library, use--enable-static
configure option as well. See libaria2documentation to know how to use API.