[tahoe-dev] [tahoe-lafs] #958: LAFS 301 Moved Permanently

[tahoe-lafs]

#958: LAFS 301 Moved Permanently
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 Reporter:  zooko                                                                   |           Owner:            
     Type:  enhancement                                                             |          Status:  new       
 Priority:  major                                                                   |       Milestone:  eventually
Component:  code-mutable                                                            |         Version:  1.6.0     
 Keywords:  forward-compatibility backward-compatibility integrity newcaps newurls  |   Launchpad_bug:            
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Changes (by davidsarah):

  * keywords:  forward-compatibility integrity newcaps newurls => forward-
               compatibility backward-compatibility
               integrity newcaps newurls
  * milestone:  undecided => eventually


Comment:

 As a backward-compatibility hack to allow users of older webapi servers to
 be able to access the target of the redirection, we can store it as a
 directory, with one of its children specifying that it is a redirection
 link (for example, by using a "redirection: true" entry in the "tahoe"
 metadata).

 This would cause newer servers to return a 301 Moved Permanently response
 (maintaining any subsequent URL path elements). Users of older servers
 would see this just as a child of the directory, and could follow it
 manually. The other children could be used to maintain the validity of
 existing links -- for instance an URL ending in /wiki.html would end up
 pointing to a petrified version of that file.

 This wouldn't work if the original URI is to an immutable file or
 directory. However, if it is to a mutable directory (which is probably the
 common case, and is true for Zooko's blog URL for example), then it would
 be possible to direct it to a new mutable or immutable directory.

-- 
Ticket URL: <http://allmydata.org/trac/tahoe/ticket/958#comment:2>
tahoe-lafs <http://allmydata.org>
secure decentralized file storage grid