aria2c [<OPTIONS>] [<URI>|<MAGNET>|<TORRENT_FILE>|<METALINK_FILE>] …
aria2 is a utility for downloading files. The supported protocols are HTTP(S), FTP, BitTorrent, and Metalink. aria2 can download a file from multiple sources/protocols and tries to utilize your maximum download bandwidth. It supports downloading a file from HTTP(S)/FTP and BitTorrent at the same time, while the data downloaded from HTTP(S)/FTP is uploaded to the BitTorrent swarm. Using Metalink’s chunk checksums, aria2 automatically validates chunks of data while downloading a file like BitTorrent.
The directory to store the downloaded file.
Downloads URIs found in FILE. You can specify multiple URIs for a single
entity: separate URIs on a single line using the TAB character.
Reads input from stdin when - is specified.
Additionally, options can be specified after each line of
URI. This optional line must start with one or more white spaces and have
one option per single line.
The input file can use gzip compression.
See Input File subsection for details.
See also --deferred-input option.
The file name of the log file. If - is specified, log is written to
stdout. If empty string(“”) is specified, log is not written to file.
Set maximum number of parallel downloads for every static (HTTP/FTP) URI,
torrent and metalink. See also --split option.
Default: 5
Check file integrity by validating piece hashes or a hash of entire
file. This option has effect only in BitTorrent, Metalink downloads
with checksums or HTTP(S)/FTP downloads with
--checksum option. If
piece hashes are provided, this option can detect damaged portions
of a file and re-download them. If a hash of entire file is
provided, hash check is only done when file has been already
download. This is determined by file length. If hash check fails,
file is re-downloaded from scratch. If both piece hashes and a hash
of entire file are provided, only piece hashes are used. Default:
false
Continue downloading a partially downloaded file. Use this option to resume a download started by a web browser or another program which downloads files sequentially from the beginning. Currently this option is only applicable to HTTP(S)/FTP downloads.
The help messages are classified with tags. A tag starts with
#. For example, type --help=#http to get the usage for the
options tagged with #http. If non-tag word is given, print the
usage for the options whose name includes that word. Available
Values: #basic, #advanced, #http, #https, #ftp,
#metalink, #bittorrent, #cookie, #hook, #file, #rpc,
#checksum, #experimental, #deprecated, #help, #all
Default: #basic
Use this proxy server for all protocols. To erase previously
defined proxy, use “”. You can override this setting and specify a
proxy server for a particular protocol using --http-proxy,
--https-proxy and --ftp-proxy options. This affects all URIs.
The format of PROXY is [http://][USER:PASSWORD@]HOST[:PORT].
See also ENVIRONMENT section.
Note
If user and password are embedded in proxy URI and they are also
specified by –{http,https,ftp,all}-proxy-{user,passwd} options,
those appeared later have precedence. For example, you have
http-proxy-user=myname, http-proxy-passwd=mypass in aria2.conf and
you specify --http-proxy="http://proxy" in command-line, then you get
HTTP proxy http://proxy with user myname and password
mypass.
Another example: if you specified in command-line
--http-proxy="http://user:pass@proxy" --http-proxy-user="myname"
--http-proxy-passwd="mypass", then you will get HTTP proxy
http://proxy with user myname and password mypass.
One more example: if you specified in command-line --http-proxy-user="myname"
--http-proxy-passwd="mypass" --http-proxy="http://user:pass@proxy",
then you get HTTP proxy http://proxy with user user and password
pass.
Set password for --all-proxy option.
Set user for --all-proxy option.
Set checksum. TYPE is hash type. The supported hash type is listed
in Hash Algorithms in aria2c -v. DIGEST is hex digest. For
example, setting sha-1 digest looks like this:
sha-1=0192ba11326fe2298c8cb4de616f4d4140213838 This option applies
only to HTTP(S)/FTP downloads.
Set the connect timeout in seconds to establish connection to
HTTP/FTP/proxy server. After the connection is established, this
option makes no effect and --timeout option is used instead.
Default: 60
If true is given, aria2 just checks whether the remote file is
available and doesn’t download data. This option has effect on
HTTP/FTP download. BitTorrent downloads are canceled if true is
specified. Default: false
Close connection if download speed is lower than or equal to this
value(bytes per sec).
0 means aria2 does not have a lowest speed limit.
You can append K or M (1K = 1024, 1M = 1024K).
This option does not affect BitTorrent downloads.
Default: 0
The maximum number of connections to one server for each download.
Default: 1
If aria2 receives “file not found” status from the remote HTTP/FTP
servers NUM times without getting a single byte, then force the
download to fail. Specify 0 to disable this option. This options is
effective only when using HTTP/FTP servers.
Default: 0
Set number of tries. 0 means unlimited.
See also --retry-wait.
Default: 5
aria2 does not split less than 2*SIZE byte range. For example,
let’s consider downloading 20MiB file. If SIZE is 10M, aria2 can
split file into 2 range [0-10MiB) and [10MiB-20MiB) and download it
using 2 sources(if --split >= 2, of course). If SIZE is 15M,
since 2*15M > 20MiB, aria2 does not split file and download it using
1 source. You can append K or M (1K = 1024, 1M = 1024K).
Possible Values: 1M -1024M Default: 20M
Disables netrc support. netrc support is enabled by default.
Note
netrc file is only read at the startup if
--no-netrc is false.
So if --no-netrc is true at the startup,
no netrc is available throughout the session.
You cannot get netrc enabled even if you send
--no-netrc=false using
aria2.changeGlobalOption().
Specify comma separated hostnames, domains and network address with or without CIDR block where proxy should not be used.
Note
For network address with CIDR block, both IPv4 and IPv6 addresses work. Current
implementation does not resolve hostname in URI to compare network
address specified in --no-proxy. So it is only effecive if URI has
numeric IP addresses.
The file name of the downloaded file. When --force-sequential option is used, this
option is ignored.
Note
In Metalink or BitTorrent download you cannot specify file name.
The file name specified here is only used when the URIs fed to aria2
are done by command line without --input-file, --force-sequential option. For example:
$ aria2c -o myfile.zip "http://mirror1/file.zip" "http://mirror2/file.zip"
Set the method to use in proxy request. METHOD is either get or
tunnel. HTTPS downloads always use tunnel regardless of this
option.
Default: get
Retrieve timestamp of the remote file from the remote HTTP/FTP
server and if it is available, apply it to the local file.
Default: false
Reuse already used URIs if no unused URIs are left.
Default: true
Set the seconds to wait between retries. With SEC > 0, aria2 will
retry download when the HTTP server returns 503 response. Default:
0
Specify the filename to which performance profile of the servers is
saved. You can load saved data using --server-stat-if option. See
Server Performance Profile
subsection below for file format.
Specify the filename to load performance profile of the servers. The
loaded data will be used in some URI selector such as feedback.
See also --uri-selector option. See
Server Performance Profile
subsection below for file format.
Specifies timeout in seconds to invalidate performance profile of
the servers since the last contact to them.
Default: 86400 (24hours)
Download a file using N connections. If more than N URIs are given,
first N URIs are used and remaining URIs are used for backup. If
less than N URIs are given, those URIs are used more than once so
that N connections total are made simultaneously. The number of
connections to the same host is restricted by
--max-connection-per-server option.
See also --min-split-size option.
Default: 5
Note
Some Metalinks regulate the number of servers to connect. aria2 strictly respects them. This means that if Metalink defines the maxconnections attribute lower than N, then aria2 uses the value of maxconnections attribute instead of N.
Specify piece selection algorithm used in HTTP/FTP download. Piece
means fixed length segment which is downloaded in parallel in
segmented download. If default is given, aria2 selects piece so
that it reduces the number of establishing connection. This is
reasonable default behaviour because establishing connection is an
expensive operation. If inorder is given, aria2 selects piece
which has minimum index. Index=0 means first of the file. This will
be useful to view movie while downloading it.
--enable-http-pipelining option may
be useful to reduce reconnection overhead. Please note that aria2
honors
--min-split-size option,
so it will be necessary to specify a reasonable value to
--min-split-size option.
If geom is given, at the beginning aria2 selects piece which has
minimum index like inorder, but it exponentially increasingly
keeps space from previously selected piece. This will reduce the
number of establishing connection and at the same time it will
download the beginning part of the file first. This will be useful
to view movie while downloading it.
Default: default
Set timeout in seconds.
Default: 60
Specify URI selection algorithm. The possible values are inorder,
feedback and adaptive. If inorder is given, URI is tried in
the order appeared in the URI list. If feedback is given, aria2
uses download speed observed in the previous downloads and choose
fastest server in the URI list. This also effectively skips dead
mirrors. The observed download speed is a part of performance
profile of servers mentioned in --server-stat-of and
--server-stat-if options. If adaptive is given, selects one of
the best mirrors for the first and reserved connections. For
supplementary ones, it returns mirrors which has not been tested
yet, and if each of them has already been tested, returns mirrors
which has to be tested again. Otherwise, it doesn’t select anymore
mirrors. Like feedback, it uses a performance profile of servers.
Default: feedback
Use the certificate authorities in FILE to verify the peers.
The certificate file must be in PEM format and can contain multiple CA
certificates.
Use --check-certificate option to enable verification.
Note
If you build with OpenSSL or the recent version of GnuTLS which
has gnutls_certificate_set_x509_system_trust() function and
the library is properly configured to locate the system-wide CA
certificates store, aria2 will automatically load those
certificates at the startup.
Use the client certificate in FILE.
The certificate must be in PEM format.
You may use --private-key option to specify the private key.
Verify the peer using certificates specified in --ca-certificate option.
Default: true
Send Accept: deflate, gzip request header and inflate response if
remote server responds with Content-Encoding: gzip or
Content-Encoding: deflate. Default: false
Note
Some server responds with Content-Encoding: gzip for files which
itself is gzipped file. aria2 inflates them anyway because of the
response header.
Send HTTP authorization header only when it is requested by the
server. If false is set, then authorization header is always sent
to the server. There is an exception: if username and password are
embedded in URI, authorization header is always sent to the server
regardless of this option. Default: false
Send Cache-Control: no-cache and Pragma: no-cache header to avoid
cached content. If false is given, these headers are not sent
and you can add Cache-Control header with a directive you like
using --header option. Default: false
Set HTTP user. This affects all URIs.
Set HTTP password. This affects all URIs.
Use this proxy server for HTTP. To erase previously defined proxy,
use “”. See also --all-proxy option. This affects all URIs. The
format of PROXY is [http://][USER:PASSWORD@]HOST[:PORT]
Set password for --http-proxy option.
Set user for --http-proxy option.
Use this proxy server for HTTPS. To erase previously defined proxy,
use “”. See also --all-proxy option. This affects all URIs. The
format of PROXY is [http://][USER:PASSWORD@]HOST[:PORT]
Set password for --https-proxy option.
Set user for --https-proxy option.
Use the private key in FILE.
The private key must be decrypted and in PEM format.
The behavior when encrypted one is given is undefined.
See also --certificate option.
Set Referer. This affects all URIs. If * is given, each request
URI is used as a referer. This may be useful when used with
--parameterized-uri option.
Enable HTTP/1.1 persistent connection.
Default: true
Enable HTTP/1.1 pipelining.
Default: false
Note
In performance perspective, there is usually no advantage to enable this option.
Append HEADER to HTTP request header. You can use this option repeatedly to specify more than one header:
$ aria2c --header="X-A: b78" --header="X-B: 9J1" "http://host/file"
Load Cookies from FILE using the Firefox3 format (SQLite3), Chromium/Google Chrome (SQLite3) and the Mozilla/Firefox(1.x/2.x)/Netscape format.
Note
If aria2 is built without libsqlite3, then it doesn’t support Firefox3 and Chromium/Google Chrome cookie format.
Save Cookies to FILE in Mozilla/Firefox(1.x/2.x)/ Netscape
format. If FILE already exists, it is overwritten. Session Cookies
are also saved and their expiry values are treated as 0. Possible
Values: /path/to/file
Use HEAD method for the first request to the HTTP server.
Default: false
Set user agent for HTTP(S) downloads.
Default: aria2/$VERSION, $VERSION is replaced by package version.
Set FTP user. This affects all URIs.
Default: anonymous
Set FTP password. This affects all URIs.
If user name is embedded but password is missing in URI, aria2 tries
to resolve password using .netrc. If password is found in .netrc,
then use it as password. If not, use the password specified in this
option.
Default: ARIA2USER@
Use the passive mode in FTP.
If false is given, the active mode will be used.
Default: true
Use this proxy server for FTP. To erase previously defined proxy,
use “”. See also --all-proxy option. This affects all URIs. The
format of PROXY is [http://][USER:PASSWORD@]HOST[:PORT]
Set password for --ftp-proxy option.
Set user for --ftp-proxy option.
Set FTP transfer type. TYPE is either binary or ascii.
Default: binary
Reuse connection in FTP.
Default: true
Set file to download by specifying its index.
You can find the file index using the --show-files option.
Multiple indexes can be specified by using ,, for example: 3,6.
You can also use - to specify a range: 1-5.
, and - can be used together: 1-5,8,9.
When used with the -M option, index may vary depending on the query
(see –metalink-* options).
Note
In multi file torrent, the adjacent files specified by this option may also be downloaded. This is by design, not a bug. A single piece may include several files or part of files, and aria2 writes the piece to the appropriate files.
Print file listing of “.torrent”, “.meta4” and “.metalink” file and exit. In case of “.torrent” file, additional information (infohash, piece length, etc) is also printed.
Enable Local Peer Discovery. If a private flag is set in a torrent,
aria2 doesn’t use this feature for that download even if true is
given. Default: false
Comma separated list of BitTorrent tracker’s announce URI to
remove. You can use special value * which matches all URIs, thus
removes all announce URIs. When specifying * in shell
command-line, don’t forget to escape or quote it. See also
--bt-tracker option.
Specify the external IP address to report to a BitTorrent
tracker. Although this function is named external, it can accept
any kind of IP addresses. IPADDRESS must be a numeric IP address.
If true is given, after hash check using --check-integrity option and
file is complete, continue to seed file. If you want to check file
and download it only when it is damaged or incomplete, set this
option to false. This option has effect only on BitTorrent download.
Default: true
Use given interface for Local Peer Discovery. If this option is not specified, the default interface is chosen. You can specify interface name and IP address. Possible Values: interface, IP addres
Specify maximum number of files to open in each BitTorrent download.
Default: 100
Specify the maximum number of peers per torrent. 0 means
unlimited. See also --bt-request-peer-speed-limit option.
Default: 55
Download metadata only. The file(s) described in metadata will not
be downloaded. This option has effect only when BitTorrent Magnet
URI is used. See also --bt-save-metadata option. Default: false
Set minimum level of encryption method.
If several encryption methods are provided by a peer, aria2 chooses the lowest
one which satisfies the given level.
Default: plain
Try to download first and last pieces of each file first. This is
useful for previewing files. The argument can contain 2 keywords:
head and tail. To include both keywords, they must be separated
by comma. These keywords can take one parameter, SIZE. For example,
if head=<SIZE> is specified, pieces in the range of first SIZE bytes
of each file get higher priority. tail=<SIZE> means the range of
last SIZE bytes of each file. SIZE can include K or M (1K = 1024,
1M = 1024K). If SIZE is omitted, SIZE=1M is used.
Removes the unselected files when download is completed in
BitTorrent. To select files, use
--select-file option. If it is
not used, all files are assumed to be selected. Please use this
option with care because it will actually remove files from your
disk.
Default: false
If true is given, aria2 doesn’t accept and establish connection with legacy
BitTorrent handshake(19BitTorrent protocol).
Thus aria2 always uses Obfuscation handshake.
Default: false
If the whole download speed of every torrent is lower than SPEED,
aria2 temporarily increases the number of peers to try for more
download speed. Configuring this option with your preferred download
speed can increase your download speed in some cases.
You can append K or M (1K = 1024, 1M = 1024K).
Default: 50K
Save metadata as “.torrent” file. This option has effect only when
BitTorrent Magnet URI is used. The filename is hex encoded info
hash with suffix “.torrent”. The directory to be saved is the same
directory where download file is saved. If the same file already
exists, metadata is not saved. See also --bt-metadata-only
option. Default: false
Seed previously downloaded files without verifying piece hashes.
Default: false
Stop BitTorrent download if download speed is 0 in consecutive SEC
seconds. If 0 is given, this feature is disabled. Default: 0
Comma separated list of additional BitTorrent tracker’s announce
URI. These URIs are not affected by --bt-exclude-tracker option
because they are added after URIs in --bt-exclude-tracker option are
removed.
Set the connect timeout in seconds to establish connection to
tracker. After the connection is established, this option makes no
effect and --bt-tracker-timeout option is used instead. Default:
60
Set the interval in seconds between tracker requests. This
completely overrides interval value and aria2 just uses this value
and ignores the min interval and interval value in the response of
tracker. If 0 is set, aria2 determines interval based on the
response of tracker and the download progress. Default: 0
Set timeout in seconds. Default: 60
Set host and port as an entry point to IPv4 DHT network.
Set host and port as an entry point to IPv6 DHT network.
Change the IPv4 DHT routing table file to PATH.
Default: $HOME/.aria2/dht.dat
Change the IPv6 DHT routing table file to PATH.
Default: $HOME/.aria2/dht6.dat
Specify address to bind socket for IPv6 DHT. It should be a global unicast IPv6 address of the host.
Set UDP listening port used by DHT(IPv4, IPv6) and UDP tracker.
Multiple ports can be specified by using ,, for example:
6881,6885. You can also use - to specify a range:
6881-6999. , and - can be used together.
Default: 6881-6999
Note
Make sure that the specified ports are open for incoming UDP traffic.
Set timeout in seconds. Default: 10
Enable IPv4 DHT functionality. It also enables UDP tracker
support. If a private flag is set in a torrent, aria2 doesn’t use
DHT for that download even if true is given. Default: true
Enable IPv6 DHT functionality. If a private flag is set in a
torrent, aria2 doesn’t use DHT for that download even if true is
given. Use --dht-listen-port option to specify port number to
listen on. See also --dht-listen-addr6 option.
Enable Peer Exchange extension. If a private flag is set in a torrent, this
feature is disabled for that download even if true is given.
Default: true
If true or mem is specified, when a file whose suffix is .torrent or content
type is application/x-bittorrent is downloaded, aria2 parses it as a torrent
file and downloads files mentioned in it.
If mem is specified, a torrent file is not written to the disk, but is just
kept in memory.
If false is specified, the .torrent file is downloaded to the disk, but
is not parsed as a torrent and its contents are not downloaded.
Default: true
Set file path for file with index=INDEX. You can find the file index
using the --show-files option. PATH is a relative path to the
path specified in --dir option. You can use this option multiple
times. Using this option, you can specify the output filenames of
BitTorrent downloads.
Set TCP port number for BitTorrent downloads.
Multiple ports can be specified by using ,, for example: 6881,6885.
You can also use - to specify a range: 6881-6999.
, and - can be used together: 6881-6889,6999.
Default: 6881-6999
Note
Make sure that the specified ports are open for incoming TCP traffic.
Set max overall upload speed in bytes/sec.
0 means unrestricted.
You can append K or M (1K = 1024, 1M = 1024K).
To limit the upload speed per torrent, use --max-upload-limit option.
Default: 0
Set max upload speed per each torrent in bytes/sec.
0 means unrestricted.
You can append K or M (1K = 1024, 1M = 1024K).
To limit the overall upload speed, use --max-overall-upload-limit option.
Default: 0
Specify the prefix of peer ID. The peer ID in
BitTorrent is 20 byte length. If more than 20
bytes are specified, only first 20 bytes are
used. If less than 20 bytes are specified, random
byte data are added to make its length 20 bytes.
Default: aria2/$VERSION-, $VERSION is replaced by package version.
Specify share ratio. Seed completed torrents until share ratio reaches
RATIO.
You are strongly encouraged to specify equals or more than 1.0 here.
Specify 0.0 if you intend to do seeding regardless of share ratio.
If --seed-time option is specified along with this option, seeding ends when
at least one of the conditions is satisfied.
Default: 1.0
Specify seeding time in minutes. Also see the --seed-ratio option.
Note
Specifying --seed-time=0 disables seeding after download completed.
The path to the “.torrent” file. You are not required to use this
option because you can specify “.torrent” files without --torrent-file.
If true or mem is specified, when a file whose suffix is .meta4 or .metalink or content
type of application/metalink4+xml or application/metalink+xml is downloaded, aria2 parses it as a metalink
file and downloads files mentioned in it.
If mem is specified, a metalink file is not written to the disk, but is just
kept in memory.
If false is specified, the .metalink file is downloaded to
the disk, but is not parsed as a metalink file and its contents are not
downloaded.
Default: true
Specify base URI to resolve relative URI in metalink:url and
metalink:metaurl element in a metalink file stored in local disk. If
URI points to a directory, URI must end with /.
The file path to “.meta4” and “.metalink” file. Reads input from stdin when - is
specified. You are not required to use this option because you can
specify “.metalink” files without --metalink-file.
The language of the file to download.
The location of the preferred server.
A comma-delimited list of locations is acceptable, for example, jp,us.
The operating system of the file to download.
The version of the file to download.
Specify preferred protocol.
The possible values are http, https, ftp and none.
Specify none to disable this feature.
Default: none
If true is given and several protocols are available for a mirror in a
metalink file, aria2 uses one of them.
Use --metalink-preferred-protocol option to specify the preference of
protocol.
Default: true
Enable JSON-RPC/XML-RPC server. It is strongly recommended to set username
and password using --rpc-user and --rpc-passwd
option. See also --rpc-listen-port option. Default: false
Pause download after added. This option is effective only when
--enable-rpc=true is given.
Default: false
Add Access-Control-Allow-Origin header field with value * to the
RPC response.
Default: false
Use the certificate in FILE for RPC server. The certificate must be
in PEM format. Use --rpc-private-key option to specify the
private key. Use --rpc-secure option to enable encryption.
AppleTLS users should use the Keychain Access utility to first generate a
self-signed SSL-Server certificate, e.g. using the wizard, and get the
SHA-1 fingerprint from the Information dialog corresponding to that new
certificate.
To start aria2c with --rpc-secure use
–rpc-certificate=<SHA-1> and just omit the --rpc-private-key
option.
Listen incoming JSON-RPC/XML-RPC requests on all network interfaces. If false
is given, listen only on local loopback interface. Default: false
Specify a port number for JSON-RPC/XML-RPC server to listen to. Possible
Values: 1024 -65535 Default: 6800
Set max size of JSON-RPC/XML-RPC request. If aria2 detects the request is
more than SIZE bytes, it drops connection. Default: 2M
Set JSON-RPC/XML-RPC password.
Use the private key in FILE for RPC server. The private key must be
decrypted and in PEM format. Use --rpc-secure option to
enable encryption. See also --rpc-certificate option.
Save the uploaded torrent or metalink metadata in the directory
specified by --dir option. The filename consists of SHA-1
hash hex string of metadata plus extension. For torrent, the
extension is ‘.torrent’. For metalink, it is ‘.meta4’. If false is
given to this option, the downloads added by
aria2.addTorrent() or aria2.addMetalink() will not be
saved by --save-session option. Default: false
RPC transport will be encrypted by SSL/TLS. The RPC clients must
use https scheme to access the server. For WebSocket client, use wss
scheme. Use --rpc-certificate and
--rpc-private-key options to specify the server
certificate and private key.
Set JSON-RPC/XML-RPC user.
Restart download from scratch if the corresponding control file
doesn’t exist. See also --auto-file-renaming option. Default:
false
If false is given, aria2 aborts download when a piece length is different
from one in a control file.
If true is given, you can proceed but some download progress will be lost.
Default: false
Always resume download. If true is given, aria2 always tries to
resume download and if resume is not possible, aborts download. If
false is given, when all given URIs do not support resume or aria2
encounters N URIs which does not support resume (N is the value
specified using --max-resume-failure-tries option), aria2
downloads file from scratch. See --max-resume-failure-tries
option. Default: true
Enable asynchronous DNS.
Default: true
Comma separated list of DNS server address used in asynchronous DNS
resolver. Usually asynchronous DNS resolver reads DNS server
addresses from /etc/resolv.conf. When this option is used, it uses
DNS servers specified in this option instead of ones in
/etc/resolv.conf. You can specify both IPv4 and IPv6 address. This
option is useful when the system does not have /etc/resolv.conf and
user does not have the permission to create it.
Rename file name if the same file already exists.
This option works only in HTTP(S)/FTP download.
The new file name has a dot and a number(1..9999) appended.
Default: true
Save a control file(*.aria2) every SEC seconds.
If 0 is given, a control file is not saved during download. aria2 saves a
control file when it stops regardless of the value.
The possible values are between 0 to 600.
Default: 60
Download file only when the local file is older than remote
file. This function only works with HTTP(S) downloads only. It does
not work if file size is specified in Metalink. It also ignores
Content-Disposition header. If a control file exists, this option
will be ignored. This function uses If-Modified-Since header to get
only newer file conditionally. When getting modification time of
local file, it uses user supplied filename(see --out option) or
filename part in URI if --out is not specified.
To overwrite existing file, --allow-overwrite is required.
Default: false
Change the configuration file path to PATH.
Default: $HOME/.aria2/aria2.conf
Set log level to output to console. LEVEL is either debug,
info, notice, warn or error. Default: notice
Run as daemon. The current working directory will be changed to /
and standard input, standard output and standard error will be
redirected to /dev/null. Default: false
If true is given, aria2 does not read all URIs and options from file
specified by --input-file option at startup,
but it reads one by one when it
needs later. This may reduce memory usage if input file contains a
lot of URIs to download. If false is given, aria2 reads all URIs
and options at startup.
Default: false
Disable IPv6. This is useful if you have to use broken DNS and want
to avoid terribly slow AAAA record lookup. Default: false
Enable disk cache. If SIZE is 0, the disk cache is
disabled. This feature caches the downloaded data in memory, which
grows to at most SIZE bytes. The cache storage is created for aria2
instance and shared by all downloads. The one advantage of the disk
cache is reduce the disk I/O because the data are written in larger
unit and it is reordered by the offset of the file. If hash
checking is involved and the data are cached in memory, we don’t
need to read them from the disk. SIZE can include K or M
(1K = 1024, 1M = 1024K). Default: 16M
This option changes the way Download Results is formatted. If OPT
is default, print GID, status, average download speed and
path/URI. If multiple files are involved, path/URI of first
requested file is printed and remaining ones are omitted. If OPT is
full, print GID, status, average download speed, percentage of
progress and path/URI. The percentage of progress and path/URI are
printed for each requested file in each row.
Default: default
Map files into memory. This option may not work if the file space
is not pre-allocated. See --file-allocation.
Default: false
Specify the method for polling events. The possible values are
epoll, kqueue, port, poll and select. For each epoll,
kqueue, port and poll, it is available if system supports it.
epoll is available on recent Linux. kqueue is available on
various *BSD systems including Mac OS X. port is available on Open
Solaris. The default value may vary depending on the system you use.
Specify file allocation method.
none doesn’t pre-allocate file space. prealloc pre-allocates file space
before download begins. This may take some time depending on the size of the
file.
If you are using newer file systems such as ext4
(with extents support), btrfs, xfs or NTFS(MinGW build only), falloc is
your best choice. It allocates large(few GiB)
files almost instantly. Don’t use falloc with
legacy file systems such as ext3 and FAT32 because it takes
almost same time as prealloc and it blocks aria2
entirely until allocation finishes. falloc may
not be available if your system doesn’t have
posix_fallocate(3) function.
trunc uses ftruncate(2) system call or
platform-specific counterpart to truncate a file to a specified
length.
Possible Values: none, prealloc, trunc, falloc
Default: prealloc
Save download with --save-session option
even if the download is completed or removed. This option also saves
control file in that situations. This may be useful to save
BitTorrent seeding which is recognized as completed state.
Default: false
Set GID manually. aria2 identifies each download by the ID called
GID. The GID must be hex string of 16 characters, thus [0-9a-zA-Z]
are allowed and leading zeros must not be stripped. The GID all 0 is
reserved and must not be used. The GID must be unique, otherwise
error is reported and the download is not added. This option is
useful when restoring the sessions saved using
--save-session option. If this option is
not used, new GID is generated by aria2.
If true is given, after hash check using
--check-integrity option,
abort download whether or not download is complete.
Default: false
Print sizes and speed in human readable format (e.g., 1.2Ki, 3.4Mi)
in the console readout. Default: true
Bind sockets to given interface. You can specify interface name, IP address and hostname. Possible Values: interface, IP address, hostname
Note
If an interface has multiple addresses, it is highly recommended to
specify IP address explicitly. See also --disable-ipv6. If your
system doesn’t have getifaddrs(3), this option doesn’t accept interface
name.
Set maximum number of download result kept in memory. The download
results are completed/error/removed downloads. The download results
are stored in FIFO queue and it can store at most NUM download
results. When queue is full and new download result is created,
oldest download result is removed from the front of the queue and
new one is pushed to the back. Setting big number in this option may
result high memory consumption after thousands of
downloads. Specifying 0 means no download result is kept. Default:
1000
When used with --always-resume=false, aria2 downloads file from
scratch when aria2 detects N number of URIs that does not support
resume. If N is 0, aria2 downloads file from scratch when all
given URIs do not support resume. See --always-resume option.
Default: 0
Set log level to output.
LEVEL is either debug, info, notice, warn or error.
Default: debug
For BitTorrent, a command specified in --on-download-complete is
called after download completed and seeding is over. On the other
hand, this option set the command to be executed after download
completed but before seeding.
See Event Hook for more details about COMMAND.
Possible Values: /path/to/command
Set the command to be executed after download completed. See
See Event Hook for more details about COMMAND.
See also --on-download-stop option.
Possible Values: /path/to/command
Set the command to be executed after download aborted due to error.
See Event Hook for more details about COMMAND.
See also --on-download-stop option. Possible Values:
/path/to/command
Set the command to be executed after download was paused.
See Event Hook for more details about COMMAND.
Possible Values: /path/to/command
Set the command to be executed after download got started.
See Event Hook for more details about COMMAND.
Possible Values: /path/to/command
Set the command to be executed after download stopped. You can override
the command to be executed for particular download result using
--on-download-complete and --on-download-error. If they are
specified, command specified in this option is not executed.
See Event Hook for more details about COMMAND.
Possible Values: /path/to/command
Set a piece length for HTTP/FTP downloads. This is the boundary when
aria2 splits a file. All splits occur at multiple of this
length. This option will be ignored in BitTorrent downloads. It
will be also ignored if Metalink file contains piece hashes.
Default: 1M
Note
The possible usecase of --piece-length
option is change the request range in one HTTP pipelined request.
To enable HTTP pipelining use
--enable-http-pipelining.
Show console readout. Default: true
Set interval in seconds to output download progress summary.
Setting 0 suppresses the output.
Default: 60
Note
In multi file torrent downloads, the files adjacent forward to the specified files are also allocated if they share the same piece.
Fetch URIs in the command-line sequentially and download each URI in a
separate session, like the usual command-line download utilities.
Default: false
Set max overall download speed in bytes/sec. 0 means
unrestricted. You can append K or M (1K = 1024, 1M = 1024K). To
limit the download speed per download, use --max-download-limit
option. Default: 0
Set max download speed per each download in bytes/sec. 0 means
unrestricted. You can append K or M (1K = 1024, 1M = 1024K). To
limit the overall download speed, use --max-overall-download-limit
option. Default: 0
Disable loading aria2.conf file.
No file allocation is made for files whose size is smaller than SIZE.
You can append K or M (1K = 1024, 1M = 1024K).
Default: 5M
Enable parameterized URI support.
You can specify set of parts: http://{sv1,sv2,sv3}/foo.iso.
Also you can specify numeric sequences with step counter:
http://host/image[000-100:2].img.
A step counter can be omitted.
If all URIs do not point to the same file, such as the second example above,
-Z option is required.
Default: false
Make aria2 quiet (no console output).
Default: false
Validate chunk of data by calculating checksum while downloading a file if
chunk checksums are provided.
Default: true
Remove control file before download. Using with
--allow-overwrite=true, download always starts from
scratch. This will be useful for users behind proxy server which
disables resume.
Save error/unfinished downloads to FILE on exit. You can pass this
output file to aria2c with --input-file option on
restart. If you like the output to be gzipped append a .gz extension to
the file name.
Please note that downloads added by
aria2.addTorrent() and aria2.addMetalink() RPC method
and whose metadata could not be saved as a file are not saved.
Downloads removed using aria2.remove() and
aria2.forceRemove() will not be saved. GID is also saved with
gid, but there are some restrictions, see below.
Note
Normally, GID of the download itself is saved. But some downloads use metadata (e.g., BitTorrent and Metalink). In this case, there are some restrictions.
GID of BitTorrent metadata download is saved.
GID of torrent file download is saved.
GID of metalink file download is saved.
GID of torrent download is saved.
Any meaningful GID is not saved.
Save error/unfinished downloads to a file specified by
--save-session option every SEC seconds. If 0 is
given, file will be saved only when aria2 exits. Default: 0
Stop application after SEC seconds has passed.
If 0 is given, this feature is disabled.
Default: 0
Stop application when process PID is not running. This is useful if aria2 process is forked from a parent process. The parent process can fork aria2 with its own pid and when parent process exits for some reason, aria2 can detect it and shutdown itself.
Truncate console readout to fit in a single line.
Default: true
Print the version number, copyright and the configuration information and exit.
The options that have its argument surrounded by square brackets([])
take an optional argument. Usually omiting the argument is evaluated to true.
If you use short form of these options(such as -V) and give
an argument, then the option name and its argument should be concatenated(e.g.
-Vfalse). If any spaces are inserted between the option name and the argument,
the argument will be treated as URI and usually this is not what you expect.
Some options takes K and M to conveniently represent 1024 and
1048576 respectively. aria2 detects these characters in
case-insensitive way. In other words, k and m can be used as
well as K and M respectively.
You can specify multiple URIs in command-line. Unless you specify
--force-sequential option, all URIs must point to the same file or downloading will
fail.
You can specify arbitrary number of BitTorrent Magnet URI. Please note
that they are always treated as a separate download. Both hex encoded
40 characters Info Hash and Base32 encoded 32 characters Info Hash are
supported. The multiple tr parameters are supported. Because
BitTorrent Magnet URI is likely to contain & character, it is highly
recommended to always quote URI with single(') or double(") quotation.
It is strongly recommended to enable DHT especially when tr
parameter is missing. See http://www.bittorrent.org/beps/bep_0009.html
for more details about BitTorrent Magnet URI.
You can also specify arbitrary number of torrent files and Metalink documents stored on a local drive. Please note that they are always treated as a separate download. Both Metalink4 and Metalink version 3.0 are supported.
You can specify both torrent file with -T option and URIs. By doing this, you can download a file from both torrent swarm and HTTP(S)/FTP server at the same time, while the data from HTTP(S)/FTP are uploaded to the torrent swarm. For single file torrents, URI can be a complete URI pointing to the resource or if URI ends with /, name in torrent file in torrent is added. For multi-file torrents, name and path are added to form a URI for each file.
Note
Make sure that URI is quoted with single(') or double(") quotation if it
contains & or any characters that have special meaning in shell.
Usually, you can resume transfer by just issuing same command(aria2c URI) if the previous transfer is made by aria2.
If the previous transfer is made by a browser or wget like sequential
download manager, then use --continue option to continue the transfer.
aria2 provides options to specify arbitrary command after specific event
occurred. Currently following options are available:
--on-bt-download-complete,
--on-download-pause,
--on-download-complete.
--on-download-start,
--on-download-error,
--on-download-stop.
aria2 passes 3 arguments to specified command when it is executed.
These arguments are: GID, the number of files and file path. For
HTTP, FTP downloads, usually the number of files is 1. BitTorrent
download can contain multiple files.
If number of files is more than one, file path is first one. In
other words, this is the value of path key of first struct whose
selected key is true in the response of
aria2.getFiles()
RPC method.
If you want to get all file paths, consider to use JSON-RPC/XML-RPC. Please
note that file path may change during download in HTTP because of
redirection or Content-Disposition header.
Let’s see an example of how arguments are passed to command:
$ cat hook.sh
#!/bin/sh
echo "Called with [$1] [$2] [$3]"
$ aria2c --on-download-complete hook.sh http://example.org/file.iso
Called with [1] [1] [/path/to/file.iso]
Because aria2 can handle multiple downloads at once, it encounters lots of errors in a session. aria2 returns the following exit status based on the last error encountered.
If all downloads were successful.
If an unknown error occurred.
If time out occurred.
If a resource was not found.
If aria2 saw the specfied number of “resource not found” error.
See --max-file-not-found option).
If a download aborted because download speed was too slow.
See --lowest-speed-limit option)
If network problem occurred.
If there were unfinished downloads. This error is only reported if all finished downloads were successful and there were unfinished downloads in a queue when aria2 exited by pressing Ctrl-C by an user or sending TERM or INT signal.
If remote server did not support resume when resume was required to complete download.
If there was not enough disk space available.
If piece length was different from one in .aria2 control file. See
--allow-piece-length-change option.
If aria2 was downloading same file at that moment.
If aria2 was downloading same info hash torrent at that moment.
If file already existed. See --allow-overwrite option.
If renaming file failed. See --auto-file-renaming option.
If aria2 could not open existing file.
If aria2 could not create new file or truncate existing file.
If file I/O error occurred.
If aria2 could not create directory.
If name resolution failed.
If aria2 could not parse Metalink document.
If FTP command failed.
If HTTP response header was bad or unexpected.
If too many redirections occurred.
If HTTP authorization failed.
If aria2 could not parse bencoded file(usually “.torrent” file).
If “.torrent” file was corrupted or missing information that aria2 needed.
If Magnet URI was bad.
If bad/unrecognized option was given or unexpected option argument was given.
If the remote server was unable to handle the request due to a temporary overloading or maintenance.
If aria2 could not parse JSON-RPC request.
Note
An error occurred in a finished download will not be reported as exit status.
aria2 recognizes the following environment variables.
http_proxy [http://][USER:PASSWORD@]HOST[:PORT]Specify proxy server for use in HTTP.
Overrides http-proxy value in configuration file.
The command-line option --http-proxy overrides this value.
https_proxy [http://][USER:PASSWORD@]HOST[:PORT]Specify proxy server for use in HTTPS.
Overrides https-proxy value in configuration file.
The command-line option --https-proxy overrides this value.
ftp_proxy [http://][USER:PASSWORD@]HOST[:PORT]Specify proxy server for use in FTP.
Overrides ftp-proxy value in configuration file.
The command-line option --ftp-proxy overrides this value.
all_proxy [http://][USER:PASSWORD@]HOST[:PORT]Specify proxy server for use if no protocol-specific proxy is specified.
Overrides all-proxy value in configuration file.
The command-line option --all-proxy overrides this value.
Note
Although aria2 accepts ftp:// and https:// scheme in proxy URI, it
simply assumes that http:// is specified and does not change its
behavior based on the specified scheme.
no_proxy [DOMAIN,...]Specify comma-separated hostname, domains and network address with
or without CIDR block to which proxy should not be used. Overrides
no-proxy value in configuration file. The command-line option
--no-proxy overrides this value.
By default, aria2 parses $HOME/.aria2/aria2.conf as a
configuraiton file. You can specify the path to configuration file
using --conf-path option. If you don’t want to use the
configuraiton file, use --no-conf option.
The configuration file is a text file and has 1 option per each
line. In each line, you can specify name-value pair in the format:
NAME=VALUE, where name is the long command-line option name without
-- prefix. You can use same syntax for the command-line option. The
lines beginning # are treated as comments:
# sample configuration file for aria2c
listen-port=60000
dht-listen-port=60000
seed-ratio=1.0
max-upload-limit=50K
ftp-pasv=true
Note
The confidential information such as user/password might be included
in the configuration file. It is recommended to change file mode
bits of the configuration file (e.g., chmod 600 aria2.conf), so
that other user cannot see the contents of the file.
By default, the routing table of IPv4 DHT is saved to the path
$HOME/.aria2/dht.dat and the routing table of IPv6 DHT is saved to
the path $HOME/.aria2/dht6.dat.
Netrc support is enabled by default for HTTP(S)/FTP. To disable netrc
support, specify --no-netrc option. Your .netrc file should have correct
permissions(600).
If machine name starts ., aria2 performs domain-match instead of
exact match. This is an extension of aria2. For example of domain
match, imagine the following .netrc entry:
machine .example.org login myid password mypasswd
aria2.example.org domain-matches .example.org and uses myid and
mypasswd.
Some domain-match example follow: example.net does not domain-match
.example.org. example.org does not domain-match .example.org
because of preceding .. If you want to match example.org, specify
example.org.
aria2 uses a control file to track the progress of a download. A
control file is placed in the same directory as the downloading file
and its filename is the filename of downloading file with .aria2
appended. For example, if you are downloading file.zip, then the
control file should be file.zip.aria2. (There is a exception for this
naming convention. If you are downloading a multi torrent, its
control file is the “top directory” name of the torrent with .aria2
appended. The “top directory” name is a value of “name” key in “info”
directory in a torrent file.)
Usually a control file is deleted once download completed. If aria2 decides that download cannot be resumed(for example, when downloading a file from a HTTP server which doesn’t support resume), a control file is not created.
Normally if you lose a control file, you cannot resume download. But if you have a torrent or metalink with chunk checksums for the file, you can resume the download without a control file by giving -V option to aria2c in command-line.
The input file can contain a list of URIs for aria2 to download. You can specify multiple URIs for a single entity: separate URIs on a single line using the TAB character.
Each line is treated as if it is provided in command-line argument.
Therefore they are affected by --force-sequential and --parameterized-uri options.
Since URIs in the input file are directly read by aria2, they must not
be quoted with single(') or double(") quotation.
Lines starting with # are treated as comments and skipped.
Additionally, the following options can be specified after each line of URIs. These optional lines must start with white space(s).
These options have exactly same meaning of the ones in the
command-line options, but it just applies to the URIs it belongs to.
Please note that for options in input file -- prefix must be
stripped.
For example, the content of uri.txt is:
http://server/file.iso http://mirror/file.iso
dir=/iso_images
out=file.img
http://foo/bar
If aria2 is executed with -i uri.txt -d /tmp options, then
file.iso is saved as /iso_images/file.img and it is downloaded
from http://server/file.iso and http://mirror/file.iso. The file
bar is downloaded from http://foo/bar and saved as /tmp/bar.
In some cases, out parameter has no effect.
See note of --out
option for the restrictions.
This section describes the format of server performance profile. The
file is plain text and each line has several NAME=VALUE pair,
delimited by comma. Currently following NAMEs are recognized:
hostHostname of the server. Required.
protocolProtocol for this profile, such as ftp, http. Required.
dl_speedThe average download speed observed in the previous download in bytes per sec. Required.
sc_avg_speedThe average download speed observed in the previous download in bytes per sec. This value is only updated if the download is done in single connection environment and only used by AdaptiveURISelector. Optional.
mc_avg_speedThe average download speed observed in the previous download in bytes per sec. This value is only updated if the download is done in multi connection environment and only used by AdaptiveURISelector. Optional.
counterHow many times the server is used. Currently this value is only used by AdaptiveURISelector. Optional.
last_updatedLast contact time in GMT with this server, specified in the seconds since the Epoch(00:00:00 on January 1, 1970, UTC). Required.
statusERROR is set when server cannot be reached or out-of-service or timeout occurred. Otherwise, OK is set.
Those fields must exist in one line. The order of the fields is not significant. You can put pairs other than the above; they are simply ignored.
An example follows:
host=localhost, protocol=http, dl_speed=32000, last_updated=1222491640, status=OK
host=localhost, protocol=ftp, dl_speed=0, last_updated=1222491632, status=ERROR
aria2 provides JSON-RPC over HTTP and XML-RPC over HTTP and they basically have the same functionality. aria2 also provides JSON-RPC over WebSocket. JSON-RPC over WebSocket uses same method signatures and response format with JSON-RPC over HTTP, but it additionally has server-initiated notifications. See JSON-RPC over WebSocket section for details.
The request path of JSON-RPC interface (for both over HTTP and over
WebSocket) is /jsonrpc. The request path of XML-RPC interface is
/rpc.
The WebSocket URI for JSON-RPC over WebSocket is
ws://HOST:PORT/jsonrpc. If you enabled SSL/TLS encryption, use
wss://HOST:PORT/jsonrpc instead.
The implemented JSON-RPC is based on JSON-RPC 2.0 <http://jsonrpc.org/specification>, and supports HTTP POST and GET (JSONP). Using WebSocket as a transport is the original extension of aria2.
The JSON-RPC interface does not support notification in HTTP, but the RPC server will send the notification in WebSocket. It also does not support floating point number. The character encoding must be UTF-8.
When reading following document for JSON-RPC, interpret struct as JSON object.
GID
GID(or gid) is the key to manage each download. Each download has an unique GID. GID is stored in 64 bits binary data in aria2. For RPC access, it is represented in hex string of 16 characters (e.g.,
2089b05ecca3d829). Normally, aria2 generates this GID for each download, but the user can specify GID manually using--gidoption. When querying download by GID, you can specify the prefix of GID as long as it is a unique prefix among others.
All code examples come from Python2.7 interpreter.
This method adds new HTTP(S)/FTP/BitTorrent Magnet URI. uris is of type array and its element is URI which is of type string. For BitTorrent Magnet URI, uris must have only one element and it should be BitTorrent Magnet URI. URIs in uris must point to the same file. If you mix other URIs which point to another file, aria2 does not complain but download may fail. options is of type struct and its members are a pair of option name and value. See Options below for more details. If position is given as an integer starting from 0, the new download is inserted at position in the waiting queue. If position is not given or position is larger than the size of the queue, it is appended at the end of the queue. This method returns GID of registered download.
JSON-RPC Example
The following example adds http://example.org/file:
>>> import urllib2, json
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'qwer',
... 'method':'aria2.addUri',
... 'params':[['http://example.org/file']]})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> c.read()
'{"id":"qwer","jsonrpc":"2.0","result":"2089b05ecca3d829"}'
XML-RPC Example
The following example adds http://example.org/file:
>>> import xmlrpclib
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> s.aria2.addUri(['http://example.org/file'])
'2089b05ecca3d829'
The following example adds 2 sources and some options:
>>> s.aria2.addUri(['http://example.org/file', 'http://mirror/file'],
dict(dir="/tmp"))
'd2703803b52216d1'
The following example adds a download and insert it to the front of waiting downloads:
>>> s.aria2.addUri(['http://example.org/file'], {}, 0)
'ca3d829cee549a4d'
This method adds BitTorrent download by uploading “.torrent” file.
If you want to add BitTorrent Magnet URI, use aria2.addUri()
method instead. torrent is of type base64 which contains
Base64-encoded “.torrent” file. uris is of type array and its
element is URI which is of type string. uris is used for
Web-seeding. For single file torrents, URI can be a complete URI
pointing to the resource or if URI ends with /, name in torrent file
is added. For multi-file torrents, name and path in torrent are
added to form a URI for each file. options is of type struct and
its members are a pair of option name and value. See
Options below for more details. If position is given
as an integer starting from 0, the new download is inserted at
position in the waiting queue. If position is not given or
position is larger than the size of the queue, it is appended at
the end of the queue. This method returns GID of registered
download. If --rpc-save-upload-metadata is true, the
uploaded data is saved as a file named hex string of SHA-1 hash of
data plus “.torrent” in the directory specified by --dir option. The example of filename is
0a3893293e27ac0490424c06de4d09242215f0a6.torrent. If same file
already exists, it is overwritten. If the file cannot be saved
successfully or --rpc-save-upload-metadata is false,
the downloads added by this method are not saved by
--save-session.
The following examples add local file file.torrent.
JSON-RPC Example
>>> import urllib2, json, base64
>>> torrent = base64.b64encode(open('file.torrent').read())
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'asdf',
... 'method':'aria2.addTorrent', 'params':[torrent]})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> c.read()
'{"id":"asdf","jsonrpc":"2.0","result":"2089b05ecca3d829"}'
XML-RPC Example
>>> import xmlrpclib
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> s.aria2.addTorrent(xmlrpclib.Binary(open('file.torrent').read()))
'2089b05ecca3d829'
This method adds Metalink download by uploading “.metalink” file.
metalink is of type base64 which contains Base64-encoded
“.metalink” file. options is of type struct and its members are a
pair of option name and value. See Options below for more
details. If position is given as an integer starting from 0, the
new download is inserted at position in the waiting queue. If
position is not given or position is larger than the size of the
queue, it is appended at the end of the queue. This method returns
array of GID of registered download. If
--rpc-save-upload-metadata is true, the uploaded data
is saved as a file named hex string of SHA-1 hash of data plus
“.metalink” in the directory specified by --dir
option. The example of filename is
0a3893293e27ac0490424c06de4d09242215f0a6.metalink. If same file
already exists, it is overwritten. If the file cannot be saved
successfully or --rpc-save-upload-metadata is false,
the downloads added by this method are not saved by
--save-session.
The following examples add local file file.meta4.
JSON-RPC Example
>>> import urllib2, json, base64
>>> metalink = base64.b64encode(open('file.meta4').read())
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'qwer',
... 'method':'aria2.addMetalink',
... 'params':[metalink]})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> c.read()
'{"id":"qwer","jsonrpc":"2.0","result":["2089b05ecca3d829"]}'
XML-RPC Example
>>> import xmlrpclib
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> s.aria2.addMetalink(xmlrpclib.Binary(open('file.meta4').read()))
['2089b05ecca3d829']
This method removes the download denoted by gid. gid is of type
string. If specified download is in progress, it is stopped at
first. The status of removed download becomes removed. This method
returns GID of removed download.
The following examples remove download GID#2089b05ecca3d829.
JSON-RPC Example
>>> import urllib2, json
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'qwer',
... 'method':'aria2.remove',
... 'params':['2089b05ecca3d829']})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> c.read()
'{"id":"qwer","jsonrpc":"2.0","result":"2089b05ecca3d829"}'
XML-RPC Example
>>> import xmlrpclib
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> s.aria2.remove('2089b05ecca3d829')
'2089b05ecca3d829'
This method removes the download denoted by gid. This method
behaves just like aria2.remove() except that this method removes
download without any action which takes time such as contacting
BitTorrent tracker.
This method pauses the download denoted by gid. gid is of type
string. The status of paused download becomes paused. If the
download is active, the download is placed on the first position of
waiting queue. As long as the status is paused, the download is not
started. To change status to waiting, use aria2.unpause() method.
This method returns GID of paused download.
This method is equal to calling aria2.pause() for every active/waiting
download. This methods returns OK for success.
This method pauses the download denoted by gid. This method
behaves just like aria2.pause() except that this method pauses
download without any action which takes time such as contacting
BitTorrent tracker.
This method is equal to calling aria2.forcePause() for every
active/waiting download. This methods returns OK for success.
This method changes the status of the download denoted by gid from
paused to waiting. This makes the download eligible to restart.
gid is of type string. This method returns GID of unpaused
download.
This method is equal to calling aria2.unpause() for every active/waiting
download. This methods returns OK for success.
This method returns download progress of the download denoted by
gid. gid is of type string. keys is array of string. If it is
specified, the response contains only keys in keys array. If keys
is empty or not specified, the response contains all keys. This is
useful when you just want specific keys and avoid unnecessary
transfers. For example, aria2.tellStatus("2089b05ecca3d829", ["gid", "status"])
returns gid and ‘status’ key. The response is of type struct and it
contains following keys. The value type is string.
gidGID of this download.
statusactive for currently downloading/seeding entry. waiting for the
entry in the queue; download is not started. paused for the
paused entry. error for the stopped download because of
error. complete for the stopped and completed download. removed
for the download removed by user.
totalLengthTotal length of this download in bytes.
completedLengthCompleted length of this download in bytes.
uploadLengthUploaded length of this download in bytes.
bitfieldHexadecimal representation of the download progress. The highest bit corresponds to piece index 0. The set bits indicate the piece is available and unset bits indicate the piece is missing. The spare bits at the end are set to zero. When download has not started yet, this key will not be included in the response.
downloadSpeedDownload speed of this download measured in bytes/sec.
uploadSpeedUpload speed of this download measured in bytes/sec.
infoHashInfoHash. BitTorrent only.
numSeedersThe number of seeders the client has connected to. BitTorrent only.
pieceLengthPiece length in bytes.
numPiecesThe number of pieces.
connectionsThe number of peers/servers the client has connected to.
errorCodeThe last error code occurred in this download. The value is of type string. The error codes are defined in EXIT STATUS section. This value is only available for stopped/completed downloads.
followedByList of GIDs which are generated by the consequence of this
download. For example, when aria2 downloaded Metalink file, it
generates downloads described in it(see --follow-metalink
option). This value is useful to track these auto generated
downloads. If there is no such downloads, this key will not
be included in the response.
belongsToGID of a parent download. Some downloads are a part of another download. For example, if a file in Metalink has BitTorrent resource, the download of “.torrent” is a part of that file. If this download has no parent, this key will not be included in the response.
dirDirectory to save files.
filesReturns the list of files. The element of list is the same struct
used in aria2.getFiles() method.
bittorrentStruct which contains information retrieved from .torrent file. BitTorrent only. It contains following keys.
announceListList of lists of announce URI. If “.torrent” file contains announce and no announce-list, announce is converted to announce-list format.
commentThe comment for the torrent. comment.utf-8 is used if available.
creationDateThe creation time of the torrent. The value is an integer since the Epoch, measured in seconds.
modeFile mode of the torrent. The value is either single or multi.
infoStruct which contains data from Info dictionary. It contains following keys.
namename in info dictionary. name.utf-8 is used if available.
JSON-RPC Example
The following example gets information about download GID#2089b05ecca3d829:
>>> import urllib2, json
>>> from pprint import pprint
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'qwer',
... 'method':'aria2.tellStatus',
... 'params':['2089b05ecca3d829']})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> pprint(json.loads(c.read()))
{u'id': u'qwer',
u'jsonrpc': u'2.0',
u'result': {u'bitfield': u'0000000000',
u'completedLength': u'901120',
u'connections': u'1',
u'dir': u'/downloads',
u'downloadSpeed': u'15158',
u'files': [{u'index': u'1',
u'length': u'34896138',
u'completedLength': u'34896138',
u'path': u'/downloads/file',
u'selected': u'true',
u'uris': [{u'status': u'used',
u'uri': u'http://example.org/file'}]}],
u'gid': u'2089b05ecca3d829',
u'numPieces': u'34',
u'pieceLength': u'1048576',
u'status': u'active',
u'totalLength': u'34896138',
u'uploadLength': u'0',
u'uploadSpeed': u'0'}}
The following example gets information specifying keys you are interested in:
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'qwer',
... 'method':'aria2.tellStatus',
... 'params':['2089b05ecca3d829',
... ['gid',
... 'totalLength',
... 'completedLength']]})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> pprint(json.loads(c.read()))
{u'id': u'qwer',
u'jsonrpc': u'2.0',
u'result': {u'completedLength': u'5701632',
u'gid': u'2089b05ecca3d829',
u'totalLength': u'34896138'}}
XML-RPC Example
The following example gets information about download GID#2089b05ecca3d829:
>>> import xmlrpclib
>>> from pprint import pprint
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> r = s.aria2.tellStatus('2089b05ecca3d829')
>>> pprint(r)
{'bitfield': 'ffff80',
'completedLength': '34896138',
'connections': '0',
'dir': '/downloads',
'downloadSpeed': '0',
'errorCode': '0',
'files': [{'index': '1',
'length': '34896138',
'completedLength': '34896138',
'path': '/downloads/file',
'selected': 'true',
'uris': [{'status': 'used',
'uri': 'http://example.org/file'}]}],
'gid': '2089b05ecca3d829',
'numPieces': '17',
'pieceLength': '2097152',
'status': 'complete',
'totalLength': '34896138',
'uploadLength': '0',
'uploadSpeed': '0'}
The following example gets information specifying keys you are interested in:
>>> r = s.aria2.tellStatus('2089b05ecca3d829', ['gid', 'totalLength', 'completedLength'])
>>> pprint(r)
{'completedLength': '34896138', 'gid': '2089b05ecca3d829', 'totalLength': '34896138'}
This method returns URIs used in the download denoted by gid. gid is of type string. The response is of type array and its element is of type struct and it contains following keys. The value type is string.
uriURI
status‘used’ if the URI is already used. ‘waiting’ if the URI is waiting in the queue.
JSON-RPC Example
>>> import urllib2, json
>>> from pprint import pprint
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'qwer',
... 'method':'aria2.getUris',
... 'params':['2089b05ecca3d829']})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> pprint(json.loads(c.read()))
{u'id': u'qwer',
u'jsonrpc': u'2.0',
u'result': [{u'status': u'used',
u'uri': u'http://example.org/file'}]}
XML-RPC Example
>>> import xmlrpclib
>>> from pprint import pprint
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> r = s.aria2.getUris('2089b05ecca3d829')
>>> pprint(r)
[{'status': 'used', 'uri': 'http://example.org/file'}]
This method returns file list of the download denoted by gid. gid is of type string. The response is of type array and its element is of type struct and it contains following keys. The value type is string.
indexIndex of file. Starting with 1. This is the same order with the files in multi-file torrent.
pathFile path.
lengthFile size in bytes.
completedLengthCompleted length of this file in bytes. Please note that it is
possible that sum of completedLength is less than completedLength in
aria2.tellStatus() method.
This is because completedLength in
aria2.getFiles()
only calculates completed pieces. On the other hand, completedLength
in
aria2.tellStatus() takes into account
of partially completed piece.
selectedtrue if this file is selected by --select-file option. If
--select-file is not specified or this is single torrent or no
torrent download, this value is always true. Otherwise false.
urisReturns the list of URI for this file. The element of list is the
same struct used in aria2.getUris() method.
JSON-RPC Example
>>> import urllib2, json
>>> from pprint import pprint
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'qwer',
... 'method':'aria2.getFiles',
... 'params':['2089b05ecca3d829']})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> pprint(json.loads(c.read()))
{u'id': u'qwer',
u'jsonrpc': u'2.0',
u'result': [{u'index': u'1',
u'length': u'34896138',
u'completedLength': u'34896138',
u'path': u'/downloads/file',
u'selected': u'true',
u'uris': [{u'status': u'used',
u'uri': u'http://example.org/file'}]}]}
XML-RPC Example
>>> import xmlrpclib
>>> from pprint import pprint
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> r = s.aria2.getFiles('2089b05ecca3d829')
>>> pprint(r)
[{'index': '1',
'length': '34896138',
'completedLength': '34896138',
'path': '/downloads/file',
'selected': 'true',
'uris': [{'status': 'used',
'uri': 'http://example.org/file'}]}]
This method returns peer list of the download denoted by gid. gid is of type string. This method is for BitTorrent only. The response is of type array and its element is of type struct and it contains following keys. The value type is string.
peerIdPercent-encoded peer ID.
ipIP address of the peer.
portPort number of the peer.
bitfieldHexadecimal representation of the download progress of the peer. The highest bit corresponds to piece index 0. The set bits indicate the piece is available and unset bits indicate the piece is missing. The spare bits at the end are set to zero.
amChokingtrue if this client is choking the peer. Otherwise false.
peerChokingtrue if the peer is choking this client. Otherwise false.
downloadSpeedDownload speed (byte/sec) that this client obtains from the peer.
uploadSpeedUpload speed(byte/sec) that this client uploads to the peer.
seedertrue is this client is a seeder. Otherwise false.
JSON-RPC Example
>>> import urllib2, json
>>> from pprint import pprint
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'qwer',
... 'method':'aria2.getPeers',
... 'params':['2089b05ecca3d829']})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> pprint(json.loads(c.read()))
{u'id': u'qwer',
u'jsonrpc': u'2.0',
u'result': [{u'amChoking': u'true',
u'bitfield': u'ffffffffffffffffffffffffffffffffffffffff',
u'downloadSpeed': u'10602',
u'ip': u'10.0.0.9',
u'peerChoking': u'false',
u'peerId': u'aria2%2F1%2E10%2E5%2D%87%2A%EDz%2F%F7%E6',
u'port': u'6881',
u'seeder': u'true',
u'uploadSpeed': u'0'},
{u'amChoking': u'false',
u'bitfield': u'ffffeff0fffffffbfffffff9fffffcfff7f4ffff',
u'downloadSpeed': u'8654',
u'ip': u'10.0.0.30',
u'peerChoking': u'false',
u'peerId': u'bittorrent client758',
u'port': u'37842',
u'seeder': u'false',
u'uploadSpeed': u'6890'}]}
XML-RPC Example
>>> import xmlrpclib
>>> from pprint import pprint
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> r = s.aria2.getPeers('2089b05ecca3d829')
>>> pprint(r)
[{'amChoking': 'true',
'bitfield': 'ffffffffffffffffffffffffffffffffffffffff',
'downloadSpeed': '10602',
'ip': '10.0.0.9',
'peerChoking': 'false',
'peerId': 'aria2%2F1%2E10%2E5%2D%87%2A%EDz%2F%F7%E6',
'port': '6881',
'seeder': 'true',
'uploadSpeed': '0'},
{'amChoking': 'false',
'bitfield': 'ffffeff0fffffffbfffffff9fffffcfff7f4ffff',
'downloadSpeed': '8654',
'ip': '10.0.0.30',
'peerChoking': 'false',
'peerId': 'bittorrent client758',
'port': '37842',
'seeder': 'false,
'uploadSpeed': '6890'}]
This method returns currently connected HTTP(S)/FTP servers of the download denoted by gid. gid is of type string. The response is of type array and its element is of type struct and it contains following keys. The value type is string.
indexIndex of file. Starting with 1. This is the same order with the files in multi-file torrent.
serversThe list of struct which contains following keys.
uriURI originally added.
currentUriThis is the URI currently used for downloading. If redirection is involved, currentUri and uri may differ.
downloadSpeedDownload speed (byte/sec)
JSON-RPC Example
>>> import urllib2, json
>>> from pprint import pprint
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'qwer',
... 'method':'aria2.getServers',
... 'params':['2089b05ecca3d829']})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> pprint(json.loads(c.read()))
{u'id': u'qwer',
u'jsonrpc': u'2.0',
u'result': [{u'index': u'1',
u'servers': [{u'currentUri': u'http://example.org/file',
u'downloadSpeed': u'10467',
u'uri': u'http://example.org/file'}]}]}
XML-RPC Example
>>> import xmlrpclib
>>> from pprint import pprint
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> r = s.aria2.getServers('2089b05ecca3d829')
>>> pprint(r)
[{'index': '1',
'servers': [{'currentUri': 'http://example.org/dl/file',
'downloadSpeed': '20285',
'uri': 'http://example.org/file'}]}]
This method returns the list of active downloads. The response is of
type array and its element is the same struct returned by
aria2.tellStatus() method. For keys parameter, please refer to
aria2.tellStatus() method.
This method returns the list of waiting download, including paused
downloads. offset is of type integer and specifies the offset from
the download waiting at the front. num is of type integer and
specifies the number of downloads to be returned. For keys
parameter, please refer to aria2.tellStatus() method.
If offset is a positive integer, this method returns downloads in the range of [offset, offset + num).
offset can be a negative integer. offset == -1 points last download in the waiting queue and offset == -2 points the download before the last download, and so on. The downloads in the response are in reversed order.
For example, imagine that three downloads “A”,”B” and “C” are waiting
in this order. aria2.tellWaiting(0, 1) returns
["A"]. aria2.tellWaiting(1, 2) returns ["B", "C"].
aria2.tellWaiting(-1, 2) returns ["C", "B"].
The response is of type array and its element is the same struct
returned by aria2.tellStatus() method.
This method returns the list of stopped download. offset is of type
integer and specifies the offset from the oldest download. num is of
type integer and specifies the number of downloads to be returned.
For keys parameter, please refer to aria2.tellStatus() method.
offset and num have the same semantics as aria2.tellWaiting()
method.
The response is of type array and its element is the same struct
returned by aria2.tellStatus() method.
This method changes the position of the download denoted by
gid. pos is of type integer. how is of type string. If how is
POS_SET, it moves the download to a position relative to the
beginning of the queue. If how is POS_CUR, it moves the download
to a position relative to the current position. If how is POS_END,
it moves the download to a position relative to the end of the
queue. If the destination position is less than 0 or beyond the end of
the queue, it moves the download to the beginning or the end of the
queue respectively. The response is of type integer and it is the
destination position.
For example, if GID#2089b05ecca3d829 is placed in position 3,
aria2.changePosition('2089b05ecca3d829', -1, 'POS_CUR') will
change its position to 2. Additional
aria2.changePosition('2089b05ecca3d829', 0, 'POS_SET') will
change its position to 0(the beginning of the queue).
The following examples move the download GID#2089b05ecca3d829 to the front of the waiting queue.
JSON-RPC Example
>>> import urllib2, json
>>> from pprint import pprint
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'qwer',
... 'method':'aria2.changePosition',
... 'params':['2089b05ecca3d829', 0, 'POS_SET']})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> pprint(json.loads(c.read()))
{u'id': u'qwer', u'jsonrpc': u'2.0', u'result': 0}
XML-RPC Example
>>> import xmlrpclib
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> s.aria2.changePosition('2089b05ecca3d829', 0, 'POS_SET')
0
This method removes URIs in delUris from and appends URIs in
addUris to download denoted by gid. delUris and addUris are
list of string. A download can contain multiple files and URIs are
attached to each file. fileIndex is used to select which file to
remove/attach given URIs. fileIndex is 1-based. position is used
to specify where URIs are inserted in the existing waiting URI
list. position is 0-based. When position is omitted, URIs are
appended to the back of the list. This method first execute removal
and then addition. position is the position after URIs are removed,
not the position when this method is called. When removing URI, if
same URIs exist in download, only one of them is removed for each URI
in delUris. In other words, there are three URIs
http://example.org/aria2 and you want remove them all, you have to
specify (at least) 3 http://example.org/aria2 in delUris. This
method returns a list which contains 2 integers. The first integer is
the number of URIs deleted. The second integer is the number of URIs
added.
The following examples add 1 URI http://example.org/file to the
file whose index is 1 and belongs to the download
GID#2089b05ecca3d829.
JSON-RPC Example
>>> import urllib2, json
>>> from pprint import pprint
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'qwer',
... 'method':'aria2.changeUri',
... 'params':['2089b05ecca3d829', 1, [],
['http://example.org/file']]})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> pprint(json.loads(c.read()))
{u'id': u'qwer', u'jsonrpc': u'2.0', u'result': [0, 1]}
XML-RPC Example
>>> import xmlrpclib
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> s.aria2.changeUri('2089b05ecca3d829', 1, [],
['http://example.org/file'])
[0, 1]
This method returns options of the download denoted by gid. The response is of type struct. Its key is the name of option. The value type is string. Note that this method does not return options which have no default value and have not been set by the command-line options, configuration files or RPC methods.
The following examples get options of the download GID#2089b05ecca3d829.
JSON-RPC Example
>>> import urllib2, json
>>> from pprint import pprint
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'qwer',
... 'method':'aria2.getOption',
... 'params':['2089b05ecca3d829']})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> pprint(json.loads(c.read()))
{u'id': u'qwer',
u'jsonrpc': u'2.0',
u'result': {u'allow-overwrite': u'false',
u'allow-piece-length-change': u'false',
u'always-resume': u'true',
u'async-dns': u'true',
...
XML-RPC Example
>>> import xmlrpclib
>>> from pprint import pprint
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> r = s.aria2.getOption('2089b05ecca3d829')
>>> pprint(r)
{'allow-overwrite': 'false',
'allow-piece-length-change': 'false',
'always-resume': 'true',
'async-dns': 'true',
....
This method changes options of the download denoted by gid dynamically. gid is of type string. options is of type struct. The following options are available for active downloads:
For waiting or paused downloads, in addition to the above options,
options listed in Input File subsection are available,
except for following options:
dry-run,
metalink-base-uri,
parameterized-uri,
pause,
piece-length and
rpc-save-upload-metadata option.
This method returns OK for success.
The following examples set max-download-limit option to 20K for the download
GID#2089b05ecca3d829.
JSON-RPC Example
>>> import urllib2, json
>>> from pprint import pprint
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'qwer',
... 'method':'aria2.changeOption',
... 'params':['2089b05ecca3d829',
... {'max-download-limit':'10K'}]})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> pprint(json.loads(c.read()))
{u'id': u'qwer', u'jsonrpc': u'2.0', u'result': u'OK'}
XML-RPC Example
>>> import xmlrpclib
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> s.aria2.changeOption('2089b05ecca3d829', {'max-download-limit':'20K'})
'OK'
This method returns global options. The response is of type
struct. Its key is the name of option. The value type is string.
Note that this method does not return options which have no default
value and have not been set by the command-line options, configuration
files or RPC methods. Because global options are used as a template
for the options of newly added download, the response contains keys
returned by aria2.getOption() method.
This method changes global options dynamically. options is of type struct. The following options are available:
In addition to them, options listed in Input File subsection
are available, except for following options:
checksum,
index-out,
out,
pause and
select-file.
Using log option, you can dynamically start logging or
change log file. To stop logging, give empty string(“”) as a parameter
value. Note that log file is always opened in append mode. This method
returns OK for success.
This method returns global statistics such as overall download and upload speed. The response is of type struct and contains following keys. The value type is string.
downloadSpeedOverall download speed (byte/sec).
uploadSpeedOverall upload speed(byte/sec).
numActiveThe number of active downloads.
numWaitingThe number of waiting downloads.
numStoppedThe number of stopped downloads.
JSON-RPC Example
>>> import urllib2, json
>>> from pprint import pprint
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'qwer',
... 'method':'aria2.getGlobalStat'})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> pprint(json.loads(c.read()))
{u'id': u'qwer',
u'jsonrpc': u'2.0',
u'result': {u'downloadSpeed': u'21846',
u'numActive': u'2',
u'numStopped': u'0',
u'numWaiting': u'0',
u'uploadSpeed': u'0'}}
XML-RPC Example
>>> import xmlrpclib
>>> from pprint import pprint
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> r = s.aria2.getGlobalStat()
>>> pprint(r)
{'downloadSpeed': '23136',
'numActive': '2',
'numStopped': '0',
'numWaiting': '0',
'uploadSpeed': '0'}
This method purges completed/error/removed downloads to free memory.
This method returns OK.
This method removes completed/error/removed download denoted by gid
from memory. This method returns OK for success.
The following examples remove the download result of the download GID#2089b05ecca3d829.
JSON-RPC Example
>>> import urllib2, json
>>> from pprint import pprint
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'qwer',
... 'method':'aria2.removeDownloadResult',
... 'params':['2089b05ecca3d829']})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> pprint(json.loads(c.read()))
{u'id': u'qwer', u'jsonrpc': u'2.0', u'result': u'OK'}
XML-RPC Example
>>> import xmlrpclib
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> s.aria2.removeDownloadResult('2089b05ecca3d829')
'OK'
This method returns version of the program and the list of enabled features. The response is of type struct and contains following keys.
versionVersion number of the program in string.
enabledFeaturesList of enabled features. Each feature name is of type string.
JSON-RPC Example
>>> import urllib2, json
>>> from pprint import pprint
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'qwer',
... 'method':'aria2.getVersion'})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> pprint(json.loads(c.read()))
{u'id': u'qwer',
u'jsonrpc': u'2.0',
u'result': {u'enabledFeatures': [u'Async DNS',
u'BitTorrent',
u'Firefox3 Cookie',
u'GZip',
u'HTTPS',
u'Message Digest',
u'Metalink',
u'XML-RPC'],
u'version': u'1.11.0'}}
XML-RPC Example
>>> import xmlrpclib
>>> from pprint import pprint
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> r = s.aria2.getVersion()
>>> pprint(r)
{'enabledFeatures': ['Async DNS',
'BitTorrent',
'Firefox3 Cookie',
'GZip',
'HTTPS',
'Message Digest',
'Metalink',
'XML-RPC'],
'version': '1.11.0'}
This method returns session information. The response is of type struct and contains following key.
sessionIdSession ID, which is generated each time when aria2 is invoked.
JSON-RPC Example
>>> import urllib2, json
>>> from pprint import pprint
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'qwer',
... 'method':'aria2.getSessionInfo'})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> pprint(json.loads(c.read()))
{u'id': u'qwer',
u'jsonrpc': u'2.0',
u'result': {u'sessionId': u'cd6a3bc6a1de28eb5bfa181e5f6b916d44af31a9'}}
XML-RPC Example
>>> import xmlrpclib
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> s.aria2.getSessionInfo()
{'sessionId': 'cd6a3bc6a1de28eb5bfa181e5f6b916d44af31a9'}
This method shutdowns aria2. This method returns OK.
This method shutdowns aria2. This method behaves like aria2.shutdown()
except that any actions which takes time such as contacting BitTorrent
tracker are skipped. This method returns OK.
This methods encapsulates multiple method calls in a single request.
methods is of type array and its element is struct. The struct
contains two keys: methodName and params. methodName is the
method name to call and params is array containing parameters to the
method. This method returns array of responses. The element of array
will either be a one-item array containing the return value of each
method call or struct of fault element if an encapsulated method call
fails.
In the following examples, we add 2 downloads. First one is
http://example.org/file and second one is file.torrent.
JSON-RPC Example
>>> import urllib2, json, base64
>>> from pprint import pprint
>>> jsonreq = json.dumps({'jsonrpc':'2.0', 'id':'qwer',
... 'method':'system.multicall',
... 'params':[[{'methodName':'aria2.addUri',
... 'params':[['http://example.org']]},
... {'methodName':'aria2.addTorrent',
... 'params':[base64.b64encode(open('file.torrent').read())]}]]})
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> pprint(json.loads(c.read()))
{u'id': u'qwer', u'jsonrpc': u'2.0', u'result': [[u'2089b05ecca3d829'], [u'd2703803b52216d1']]}
JSON-RPC also supports Batch request described in JSON-RPC 2.0 Specification:
>>> jsonreq = json.dumps([{'jsonrpc':'2.0', 'id':'qwer',
... 'method':'aria2.addUri',
... 'params':[['http://example.org']]},
... {'jsonrpc':'2.0', 'id':'asdf',
... 'method':'aria2.addTorrent',
... 'params':[base64.b64encode(open('file.torrent').read())]}])
>>> c = urllib2.urlopen('http://localhost:6800/jsonrpc', jsonreq)
>>> pprint(json.loads(c.read()))
[{u'id': u'qwer', u'jsonrpc': u'2.0', u'result': u'2089b05ecca3d829'},
{u'id': u'asdf', u'jsonrpc': u'2.0', u'result': u'd2703803b52216d1'}]
XML-RPC Example
>>> import xmlrpclib
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> mc = xmlrpclib.MultiCall(s)
>>> mc.aria2.addUri(['http://example.org/file'])
>>> mc.aria2.addTorrent(xmlrpclib.Binary(open('file.torrent').read()))
>>> r = mc()
>>> tuple(r)
('2089b05ecca3d829', 'd2703803b52216d1')
In JSON-RPC, aria2 returns JSON object which contains error code in code and the error message in message.
In XML-RPC, aria2 returns faultCode=1 and the error message in faultString.
Same options for --input-file list are available. See Input File subsection for complete list of options.
In the option struct, name element is option name(without preceding
--) and value element is argument as string.
{'split':'1', 'http-proxy':'http://proxy/'}
<struct>
<member>
<name>split</name>
<value><string>1</string></value>
</member>
<member>
<name>http-proxy</name>
<value><string>http://proxy/</string></value>
</member>
</struct>
header and index-out
option are allowed multiple times in
command-line. Since name should be unique in struct(many XML-RPC
library implementation uses hash or dict for struct), single string is
not enough. To overcome this situation, they can take array as value
as well as string.
{'header':['Accept-Language: ja', 'Accept-Charset: utf-8']}
<struct>
<member>
<name>header</name>
<value>
<array>
<data>
<value><string>Accept-Language: ja</string></value>
<value><string>Accept-Charset: utf-8</string></value>
</data>
</array>
</value>
</member>
</struct>
Following example adds a download with 2 options: dir and header. header option has 2 values, so it uses a list:
>>> import xmlrpclib
>>> s = xmlrpclib.ServerProxy('http://localhost:6800/rpc')
>>> opts = dict(dir='/tmp',
... header=['Accept-Language: ja',
... 'Accept-Charset: utf-8'])
>>> s.aria2.addUri(['http://example.org/file'], opts)
'1'
The JSON-RPC interface also supports request via HTTP GET. The encoding scheme in GET parameters is based on JSON-RPC over HTTP Specification [2008-1-15(RC1)]. The encoding of GET parameters are follows:
/jsonrpc?method=METHOD_NAME&id=ID¶ms=BASE64_ENCODED_PARAMS
The method and id are always treated as JSON string and their
encoding must be UTF-8.
For example, The encoded string of
aria2.tellStatus('2089b05ecca3d829') with id='foo' looks like
this:
/jsonrpc?method=aria2.tellStatus&id=foo¶ms=WyIyMDg5YjA1ZWNjYTNkODI5Il0%3D
The params parameter is Base64-encoded JSON array which usually
appears in params attribute in JSON-RPC request object. In the
above example, the params is ["2089b05ecca3d829"], therefore:
["2089b05ecca3d829"] --(Base64)--> WyIyMDg5YjA1ZWNjYTNkODI5Il0=
--(Percent Encode)--> WyIyMDg5YjA1ZWNjYTNkODI5Il0%3D
The JSON-RPC interface supports JSONP. You can specify the callback
function in jsoncallback parameter:
/jsonrpc?method=aria2.tellStatus&id=foo¶ms=WyIyMDg5YjA1ZWNjYTNkODI5Il0%3D&jsoncallback=cb
For Batch request, method and id parameter must not be specified.
Whole request must be specified in params parameter. For example,
Batch request:
[{'jsonrpc':'2.0', 'id':'qwer', 'method':'aria2.getVersion'},
{'jsonrpc':'2.0', 'id':'asdf', 'method':'aria2.tellActive'}]
will be encoded like this:
/jsonrpc?params=W3sianNvbnJwYyI6ICIyLjAiLCAiaWQiOiAicXdlciIsICJtZXRob2QiOiAiYXJpYTIuZ2V0VmVyc2lvbiJ9LCB7Impzb25ycGMiOiAiMi4wIiwgImlkIjogImFzZGYiLCAibWV0aG9kIjogImFyaWEyLnRlbGxBY3RpdmUifV0%3D
JSON-RPC over WebSocket uses same method signatures and response format with JSON-RPC over HTTP. The supported WebSocket version is 13 which is detailed in RFC 6455.
To send a RPC request to the RPC server, send serialized JSON string in Text frame. The response from the RPC server is delivered also in Text frame.
The RPC server will send the notification to the client. The notification is unidirectional, therefore the client which received the notification must not respond to it. The method signature of notification is much like a normal method request but lacks id key. The value associated by the params key is the data which this notification carries. The format of this value varies depending on the notification method. Following notification methods are defined.
This notification will be sent if a download is started. The event is of type struct and it contains following keys. The value type is string.
gidGID of the download.
This notification will be sent if a download is paused. The event
is the same struct of the event argument of
aria2.onDownloadStart() method.
This notification will be sent if a download is stopped by the user.
The event is the same struct of the event argument of
aria2.onDownloadStart() method.
This notification will be sent if a download is completed. In
BitTorrent downloads, this notification is sent when the download is
completed and seeding is over. The event is the same struct of the
event argument of
aria2.onDownloadStart() method.
This notification will be sent if a download is stopped due to error.
The event is the same struct of the event argument of
aria2.onDownloadStart() method.
This notification will be sent if a download is completed in
BitTorrent (but seeding may not be over). The event is the same struct
of the event argument of
aria2.onDownloadStart() method.
The following Ruby script adds http://localhost/aria2.tar.bz2 to
aria2c operated on localhost with option --dir=/downloads and
prints its reponse:
#!/usr/bin/env ruby
require 'xmlrpc/client'
require 'pp'
client=XMLRPC::Client.new2("http://localhost:6800/rpc")
options={ "dir" => "/downloads" }
result=client.call("aria2.addUri", [ "http://localhost/aria2.tar.bz2" ], options)
pp result
If you are a Python lover, you can use xmlrpclib(for Python3.x, use xmlrpc.client instead) to interact with aria2:
import xmlrpclib
from pprint import pprint
s = xmlrpclib.ServerProxy("http://localhost:6800/rpc")
r = s.aria2.addUri(["http://localhost/aria2.tar.bz2"], {"dir":"/downloads"})
pprint(r)
While downloading files, aria2 prints the console readout to tell the progress of the downloads. The console readout is like this:
[#2089b0 400.0KiB/33.2MiB(1%) CN:1 DL:115.7KiB ETA:4m51s]
This section describes what these numbers and strings mean.
#NNNNNNThe first 6 characters of GID in hex string. GID is an unique ID for each download.
X/Y(Z%)Completed length, the total file length and its ratio. If
--select-file is used, this is the sum of selected file.
SEEDShare ratio. The client is now seeding. After BitTorrent download finished, size information is replaced with this.
CNThe number of connections the client has established.
SDThe number of seeders the client is now connecting to.
DLDownload speed (bytes per second).
ULUpload speed (bytes per second) and the number of uploaded bytes.
ETAExpected time to finish.
When more than 1 download are going on, some of the information described above will be omitted in order to show several download information. And the overall download and upload speed are shown at the beginning of the line.
When aria2 is allocating file space or validating checksum, it additionally prints the their progress:
GID, allocated length and total length in bytes.
GID, validated length and total length in bytes.
$ aria2c "http://host/file.zip"
Note
To stop a download, press Ctrl-C. You can resume the transfer by running aria2c with the same argument in the same directory. You can change URIs as long as they are pointing to the same file.
$ aria2c "http://host/file.zip" "http://mirror/file.zip"
$ aria2c -x2 -k1M "http://host/file.zip"
$ aria2c "http://host1/file.zip" "ftp://host2/file.zip"
$ aria2c -ifiles.txt -j2
Note
-j option specifies the number of parallel downloads.
For HTTP:
$ aria2c --http-proxy="http://proxy:8080" "http://host/file"
$ aria2c --http-proxy="http://proxy:8080" --no-proxy="localhost,127.0.0.1,192.168.0.0/16" "http://host/file"
For FTP:
$ aria2c --ftp-proxy="http://proxy:8080" "ftp://host/file"
Note
See --http-proxy, --https-proxy, --ftp-proxy, --all-proxy and
--no-proxy for details. You can specify proxy in the environment
variables. See ENVIRONMENT section.
$ aria2c --follow-metalink=mem "http://host/file.metalink"
$ aria2c -p --lowest-speed-limit=4000 file.metalink
Note
To stop a download, press Ctrl-C. You can resume the transfer by running aria2c with the same argument in the same directory.
$ aria2c -j2 file1.metalink file2.metalink
$ aria2c --select-file=1-4,8 file.metalink
Note
The index is printed to the console using -S option.
$ aria2c --metalink-location=jp,us --metalink-version=1.1 --metalink-language=en-US file.metalink
$ aria2c --follow-torrent=mem "http://host/file.torrent"
$ aria2c --max-upload-limit=40K file.torrent
Note
–max-upload-limit specifies the max of upload rate.
Note
To stop a download, press Ctrl-C. You can resume the transfer by running aria2c with the same argument in the same directory.
$ aria2c "magnet:?xt=urn:btih:248D0A1CD08284299DE78D5C1ED359BB46717D8C&dn=aria2"
Note
Don’t forget to quote BitTorrent Magnet URI which includes &
character with single(') or double(") quotation.
$ aria2c -j2 file1.torrent file2.torrent
$ aria2c -Ttest.torrent "http://host1/file" "ftp://host2/file"
Note
Downloading multi file torrent with HTTP/FTP is not supported.
$ aria2c --select-file=1-4,8 file.torrent
Note
The index is printed to the console using -S option.
$ aria2c --follow-torrent=false "http://host/file.torrent"
To specify output filename for BitTorrent downloads, you need to know
the index of file in torrent file using --show-files option. For example, the
output looks like this:
idx|path/length
===+======================
1|dist/base-2.6.18.iso
|99.9MiB
---+----------------------
2|dist/driver-2.6.18.iso
|169.0MiB
---+----------------------
To save ‘dist/base-2.6.18.iso’ in ‘/tmp/mydir/base.iso’ and ‘dist/driver-2.6.18.iso’ in ‘/tmp/dir/driver.iso’, use the following command:
$ aria2c --dir=/tmp --index-out=1=mydir/base.iso --index-out=2=dir/driver.iso file.torrent
$ aria2c --listen-port=7000-7001,8000 file.torrent
Note
Since aria2 doesn’t configure firewall or router for port forwarding, it’s up to you to do it manually.
$ aria2c --seed-time=120 --seed-ratio=1.0 file.torrent
Note
In the above example, the program exits when the 120 minutes has elapsed since download completed or seed ratio reaches 1.0.
$ aria2c --max-upload-limit=100K file.torrent
$ aria2c --enable-dht --dht-listen-port=6881 file.torrent
Note
DHT uses udp port. Since aria2 doesn’t configure firewall or router for port forwarding, it’s up to you to do it manually.
$ aria2c --enable-dht6 --dht-listen-port=6881 --dht-listen-addr6=YOUR_GLOBAL_UNICAST_IPV6_ADDR
Note
aria2 shares same port between IPv4 and IPv6 DHT.
Removes all tracker announce URIs described in file.torrent and use
http://tracker1/announce and http://tracker2/announce instead:
$ aria2c --bt-exclude-tracker="*" --bt-tracker="http://tracker1/announce,http://tracker2/announce" file.torrent
$ aria2c -c -s2 "http://host/partiallydownloadedfile.zip"
$ aria2c --ca-certificate=/path/to/ca-certificates.crt --check-certificate https://host/file
Specify server certificate file and private key file as follows:
$ aria2c --enable-rpc --rpc-certificate=/path/to/server.crt --rpc-private-key=/path/to/server.key --rpc-secure
$ aria2c --max-download-limit=100K file.metalink
$ aria2c -V file.metalink
Note
Repairing damaged downloads can be done efficiently when used with BitTorrent or Metalink with chunk checksums.
$ aria2c --lowest-speed-limit=10K file.metalink
You can specify set of parts:
$ aria2c -P "http://{host1,host2,host3}/file.iso"
You can specify numeric sequence:
$ aria2c -Z -P "http://host/image[000-100].png"
Note
-Z option is required if the all URIs don’t point to the same file, such as the above example.
You can specify step counter:
$ aria2c -Z -P "http://host/image[A-Z:2].png"
$ aria2c --checksum=sha-1=0192ba11326fe2298c8cb4de616f4d4140213837 http://example.org/file
$ aria2c -j3 -Z "http://host/file1" file2.torrent file3.metalink
Encrypt whole payload using ARC4:
$ aria2c --bt-min-crypto-level=arc4 --bt-require-crypto=true file.torrent
Project Web Site: http://aria2.sourceforge.net/
aria2 Wiki: http://sourceforge.net/apps/trac/aria2/wiki
Metalink Homepage: http://www.metalinker.org/
The Metalink Download Description Format: RFC 5854
Copyright (C) 2006, 2013 Tatsuhiro Tsujikawa
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
In addition, as a special exception, the copyright holders give permission to link the code of portions of this program with the OpenSSL library under certain conditions as described in each individual source file, and distribute linked combinations including the two. You must obey the GNU General Public License in all respects for all of the code used other than OpenSSL. If you modify file(s) with this exception, you may extend this exception to your version of the file(s), but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version. If you delete this exception statement from all source files in the program, then also delete it here.