Ed2k URI scheme: Difference between revisions

Revision as of 19:31, 23 April 2012

Revision as of 21:33, 24 April 2012

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Many programs, such as [[eMule]], [[MLDonkey]] and the original [[eDonkey2000]] client by ''[[MetaMachine]]'', which introduced the link type, as well as others using the eDonkey file sharing protocol, can be used to manage files stored in the filesharing network.

eD2k links allow a file to be identified from a link in a web browser and to be downloaded thereafter by a client like eMule, [[Shareaza]] or any other compatible software. This linking feature was one of the first [[Uniform Resource Identifier|URI]]s to be introduced in [[peer-to-peer]] file sharing, and had a vast effect on the development of the eDonkey network, as it allowed external link sites to provide verified content within the network. Nowadays, so-called [[Magnet URI scheme|Magnet links]] have replaced eD2k:// links in practice. They serve a similar role, but are not limited to the eD2k hash and can contain other hashes such as [[SHA-1]] or [[MD5]] for example, which makes it possible to use these links to point to files in several networks (as well as in BitTorrent) at once.

eD2k links include file hashes, as these hashes can be used as a [[unique identifier]] for files within the network, so even if the linked-to file has a different name on two computers within the network, the file can be found on both of them, and file chunks can be obtained from both sources. This is done by using a [[hash function]] on the file to calculate its checksum, depending only from the file content, not from its name.

Like other URI protocols, web browsers can be configured to automatically handle ed2k URIs. After installing an [[Comparison of eDonkey software|eD2k client]], the ed2k://eD2k protocol is optionally registered so that clicking on it in the browser automatically starts the download or asks whether the user wants to start downloading respectively.

== File link format ==