Hi Robert, Miika,
Am 15.04.16 um 16:59 schrieb Robert Helling:
Hi,
On 15.04.2016, at 16:18, Miika Turkia <[email protected]
<mailto:[email protected]>> wrote:
(Not that I would have a clear
picture on what Robert has done on Subsurface end regarding picture
management in-between :D)
not much actually. But (and I guess that was also the case the last
time we spoke about this) in subsurface, images can be URLs. That is a
picture has this thing that is called “filename”, but that can be more
general. First we try to interpret that as a local filename and see if
that loads as a picture. If it doesn’t, we interpret is as a URL and
download it (upon displaying the dive) from the interwebs. Once
successfully downloaded, we cache that picture and (based on its hash
value) access the local version. So if Rainer provided us just with a
valid image URL the rest would automagically work from there.
Well, there is a tag in the DLDs XML data for the pictures and its
already fully functional.....
Here's an example for my last dives pictures:
<PICTURES>
<PICTURE lastModified="2016-03-18 16:07:33"
path="/pictures/rainer/">1683296-1.jpg</PICTURE>
<PICTURE lastModified="2016-03-18 16:07:33"
path="/pictures/rainer/">1683296-2.jpg</PICTURE>
<PICTURE lastModified="2016-03-18 16:07:34"
path="/pictures/rainer/">1683296-3.jpg</PICTURE>
<PICTURE lastModified="2016-03-18 16:07:34"
path="/pictures/rainer/">1683296-4.jpg</PICTURE>
<PICTURE lastModified="2016-03-18 16:07:34"
path="/pictures/rainer/">1683296-5.jpg</PICTURE>
<PICTURE lastModified="2016-03-18 16:07:34"
path="/pictures/rainer/">1683296-6.jpg</PICTURE>
</PICTURES>
so if you simply concatenate "https://divelogs.de";, the path attribute
and the value of the <PICTURE> Tag, you have your URL already:
https://divelogs.de/pictures/rainer/1683296-1.jpg
If you further wanted to preserve bad with, the server could already
compute the SHA1 hash of the image file. In that case we wouldn’t even
load it if we had a local copy with a different “Filename”.
Upload, of course is a different matter.
This is already sort of "prepared" on the server side but not yet released.
My idea was to include a folder "pictures" in the DLD file and stuff all
the pics in there. Add the <PICTURES> tag in the XML and that would be
just about it for a start. Biggest problem is probably that the DLD
files could get damn big and exceed the servers POST limit quite soon.
But I guess we could experiment...
Rainer
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