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that of an otherwise valid asset, return HTTP PartialContent rather than RequestedRangeNotSatisfiable.
This is because recent viewers (3.2.1, 3.3.4) and probably earlier ones using the http GetTexture capability will sometimes make such invalid range requests.
This appears to happen if the viewer's estimate of texture sizes at discard levels > 0 (chiefly 2) exceeds the total texture size.
I believe this does not normally happen but can occur for dynamic textures with are large but mainly blank.
If this happens, returning a RequestedRangeNotSatisfiable will cause the viewer to not render the texture at the final resolution.
However, returning a PartialContent (or OK) even with 0 data will allow the viewer to render the final texture.
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slow handling of requests.
This is to avoid logging a 'slow' request when the source of delay is the viewer in processing a response.
This is not something we can do much about on the server end - it's server-side delay that we're interested in.
To ensure consistency, this commit also had to refactor and simplify inbound non-poll network request handling, though there should be no functional change.
IOSHttpResponse no longer exposes the Send() method, only classes in OpenSim.Framework.Servers.HttpServer should be doing this.
Only the GetTextureHandler was sending its own response. Now it leaves this to BaseHttpServer, like all other core handlers.
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can relate a slow request to what the handler actually does and the agent it serves, if applicable.
This is most useful for capabilities where the url is not self-describing.
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Haven't been able to resolve issue where attachments are removed by the viewer on relog on a localhost
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of OSHttpRequest/OSHttpResponse.
This is required for the substitution of different HTTP servers or the newer HttpServer.dll without having to commit to a particular implementation.
This is also required to write regression tests that involve the HTTP layer.
If you need to recompile, all you need to do is replace OSHttpRequest/OSHttpResponse references with IOSHttpRequest/IOSHttpResponse.
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whole asset length, return HTTP PartialContent instead of NotFound
NotFound is obviously wrong, and this change stops viewer 3.2.2 (and v probably earlier) complaining in the log about missing textures that are actually present.
We still return PartialContent even if the range requested is a superset of the data range as per httpd's behaviour
https://issues.apache.org/bugzilla/show_bug.cgi?id=51878
Viewer 3.2.2 and very probably earlier appear happy with this.
Whether fixing this NotFound bug has any practical effect apart from resolve viewer log messages is unknown.
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them as UUID.Zero.
Leaving them at UUID.Zero meant that when a viewer 2 logged into a region that had been freshly created, it received UUID.Zero for these textures, and hence display the land as plain white.
On a simulator restart, the problem would go away since when the database adapators loaded the new region settings, RegionSettings itself has code to use default textures instead of UUID.Zero.
This commit resolves the problem by saving the default texture UUIDs instead of Zero.
However, we currently have to do this in a roundabout way by resaving once the RegionSettings have been created by the database for the first time. This needless complexity should be addressed.
This change will also have the effect of replacing any existing UUID.Zero terrain textures with the default ones.
However, this shouldn't have any effect since the UUID.Zeros were already being replaced in memory with those same UUIDs.
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GetTexture.
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GetTexture handler. The region module in Linden space uses it. WARNING: nothing of this works yet, it just compiles.
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a newly created CoreModules/Caps. Not all.
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Didn't touch the appearance related stuff.
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yet...
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as an extra query parameter in the URL format=<format> (this was tested and working) or it may come in the Accept header (code added, but not tested). The result of the conversion is placed in the asset cache, under the name <uuid>-<format>.
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satisfiable
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start of the ranges gets clamped with a wrong value. In case of a texture with
601 byte long texture the viewer request range 0-599 first, then 600- in which case
both start and end should be 600.
End can also be 0, valid request for the firt byte of the file is 0-0.
Thanks to Thickbrick for explaining how HTTP range header works.
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inclusive in Range: headers)
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stored in regionsettings. Upon generation of a new tile image, the old one is deleted. Tested for SQLite and MySql standalone.
* Fixed small bug with map search where the local sim regions weren't found.
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cache only
* Adds GetTextureModule that implements the "GetTexture" capability, aka HTTP texture fetching. This is a significantly optimized path that does not require any server-side JPEG2000 decoding, texture priority queue, or UDP file transfer
* Sanity check for null reference in LLClientView.RefreshGroupMembership()
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