Difficulties to create YAML file with archiviodistatovenezia.it about dezoomify-rs

[lovasoa]

Ok, I'm sorry I misunderstood. If you read the iipimage protocol documentation, you see that it can also generate zoomify- and deepzoom- compatible meta files. You just have to change the url

For instance, if you notice in your network monitor a request like:

http://www.archiviodistatovenezia.it/fast/iipsrv2.fcgi?FIF=/mnt/links/siasve/./01/10/110368.tif&obj=IIP,1.0&obj=Max-size&obj=Tile-size&obj=Resolution-number

You can replace FIF with DeepZoom, add .dzi after the name of the image, and remove the other URL parameters:

http://www.archiviodistatovenezia.it/fast/iipsrv2.fcgi?DeepZoom=/mnt/links/siasve/./01/10/110368.tif.dzi

This results in a valid deepzoom URL that you can give to dezoomify-rs.

[lovasoa]

You don't need to create a tiles.yaml file for this one, or even to use a dezoomifier for that matter. You can simply request the server for the full image:

http://www.archiviodistatovenezia.it/fast/iipsrv2.fcgi?FIF=/mnt/links/siasve/./01/10/110368.tif&CVT=jpeg

When browsing the image with the network monitor opened, you notice that it make requests to :

http://www.archiviodistatovenezia.it/fast/iipsrv2.fcgi?FIF=/mnt/links/siasve/./01/10/110368.tif&obj=IIP,1.0&obj=Max-size&obj=Tile-size&obj=Resolution-number

The iipsrv2.fcgi in the URL is a sign that the server uses the IIPImage Server. This is a free software, and the documentation for the protocol they use is on their website: https://iipimage.sourceforge.io/documentation/protocol/

Reading the documentation, you notice that you can simply use the CVT parameter to export the full image.

[lovasoa]

If there is indeed a limitation with their server, making it completely unavailable when you download tiles, then dezoomifying it with existing tools is clearly not a good idea. You don't want to break the experience of everyone just so that you can download your image. dezoomify or dezoomify-rs would have to implement some kind of rate-limiting to avoid overloading low-resource servers like this one.

[Arekkusu1998]

Sorry @lovasoa: I tried Your method these days but it doesn't work.
The screen that comes out is the following.

There's worse news: after having tried to dezoomify maps in vain, all the documents that can be viewed on the website are no longer reachable: the window goes black, no document is loaded and a warning appears above.
Here is the screen.

Is it a kind of damn security device (which I've never been until a few weeks ago), a system's glitch or is it something else?

[lovasoa]

Their site indeed seems to be broken now.

[Arekkusu1998]

Nope, @lovasoa, I think You're almost wrong this time😢.
This day, the website always worked and I was able to dezoomify medium-large 1:2000 maps, simply using Dezoomify (just copy & paste the image link, clicking on it). But, in the exact instant in which I arrived at the giant 1:1000 maps and adopted Your method, everything stopped and now the website of the Venice State Archives is again in the complete crash. I think direct downloads inhibits the viewing of all the material, for everyone; maybe a new security system🙄...
Please, I ask You again -when the website return operative- how to construct the info.json string for the maps listed above:

• 0062191
• 0062201
• 0062211
• 0062221

Each map has a serial number: see «pagina/carta» at the top right of the viewing window.

[Arekkusu1998]

Forgive my insistence, @lovasoa; I badly explained myself.
I've used Dezoomify successfully yesterday the whole day, getting 20 medium-large maps; the website had never any interruptions😊. Also, I'm dezoomifying maps (slowly) with Dezoomify right now ... and the website isn't disturbed in any way! I conclude that NEITHER Dezoomify NOR Dezoomify-RS lead to the crash of Venice Archives Portal, but the DIRECT download (modifying the url string in CVT=jpeg) does😵.
For this I ask You, please, how to build the info.json file for the aforementioned maps 🙏, so I can obtain what I want and I don't break the experience of anyone.

[Arekkusu1998]

Thank you very much, @lovasoa: now, my problem is solved😊!!