new feature: searchFilesByTag about nextcloud-node-client

[hobigo]

Hi aleks365 ,
got it.
This project has been created for a similar reasons - OCR processing of images, text extraction and text analysis for search.
I used "shaddow" files in nextcould (starting with ".") to track the processing state and store the results for the file.
Actually a cool feature of nextcloud.

Using a tag to "send" the files TensorFlow is a good idea.
Thanks for sharing your thougths.

hobigo

[hobigo]

Request:

fetch("....../remote.php/dav/files/<userid>/", {
  "headers": {
    "accept": "*/*",
    "content-type": "text/plain;charset=UTF-8",
  },
  "body": "<oc:filter-files  xmlns:d=\"DAV:\" xmlns:oc=\"http://owncloud.org/ns\" xmlns:nc=\"http://nextcloud.org/ns\" xmlns:ocs=\"http://open-collaboration-services.org/ns\">\n    <d:prop>\n        <d:getlastmodified />\n        <d:getetag />\n        <d:getcontenttype />\n        <d:resourcetype />\n        <oc:fileid />\n        <oc:permissions />\n        <oc:size />\n        <d:getcontentlength />\n        <nc:has-preview />\n        <nc:mount-type />\n        <nc:is-encrypted />\n        <ocs:share-permissions />\n        <oc:tags />\n        <oc:favorite />\n        <oc:comments-unread />\n        <oc:owner-id />\n        <oc:owner-display-name />\n        <oc:share-types />\n    </d:prop>\n    <oc:filter-rules>\n        <oc:systemtag>290</oc:systemtag>\n    </oc:filter-rules>\n</oc:filter-files>\n",
  "method": "REPORT",
});

AND

 <oc:filter-rules>
        <oc:systemtag>290</oc:systemtag>
        <oc:systemtag>289</oc:systemtag>
    </oc:filter-rules>

[hobigo]

Response is a mutistatus 207 for files:
open
limit and count

[hobigo]

Hi aleks365,
I'll put it on my list for the next release.
It is possible to do it.
I don't know how fast it is.
limiting and paging is currently not clear

[hobigo]

open pull request for paging and limiting on nextcloud server side.
nextcloud/server#10880
I would consider the non ability to limit the response as a security bug...

[aleks365]

Hobigo, thank you for your interest.

...
I'll put it on my list for the next release.
It is possible to do it.
I don't know how fast it is.
limiting and paging is currently not clear

I would consider the non ability to limit the response as a security bug...

sure, I'm waiting for the next release

[hobigo]

Hi aleks365,
v1.4.0 contains the function - client.getFileSystemObjectByTags

Please find an example how to use it here:
https://github.com/hobigo/nextcloud-node-client#examples
Tagging

would be intersting to know what you are doing with this function
regards hobigo

[aleks365]

Hobigo, thank you for the quick release

I use this for file storage and image classification

// A simplified version
const tag = await client.getTagById(5);
const fse = await client.getFileSystemElementByTags([tag]);

const file = fse[0];

// I am sending binary data to the TensorFlow service
const url = file.getUrl();
// axios...

// Deleting file from queue
await file.removeTag('queue');

I download files from the queue and then pass binary data to the TensorFlow service. In this way, the TensorFlow service adds more tags.
The code on production looks different but I simplified it for the needs of the example.
If you would like to know something more, let me know