GitLab

* Fix to #3465. Prevent the, resaving of duplicate images if overwrite not specified

This is a fix to #3465 

Adds function compare_image_hash to do a sha256 hash comparison between an uploaded image and existing images with matching file names. 

This changes the behavior so that only images having the same filename that are actually different are saved to input, existing images are instead now opened instead of resaved with increment. 

Currently, exact duplicates with the same filename are resave saved with an incremented filename in the format:

<filename> (n).ext 

with the code: 

```
while os.path.exists(filepath): 
                        filename = f"{split[0]} ({i}){split[1]}"
                        filepath = os.path.join(full_output_folder, filename)
                        i += 1
```

This commit changes this to: 

```
while os.path.exists(filepath): 
                        if compare_image_hash(filepath, image):
                            image_is_duplicate = True
                            break
                        filename = f"{split[0]} ({i}){split[1]}"
                        filepath = os.path.join(full_output_folder, filename)
                        i += 1
```

a check for if image_is_duplicate = False is done before saving the file. 

Currently, if you load the same image of a cat named cat.jpg into the LoadImage node 3 times, you will get 3 new files in your input folder with incremented file names.

With this change, you will now only have the single copy of cat.jpg, that will be re-opened instead of re-saved. 

However if you load 3 different images of cats named cat.jpg, you will get the expected behavior of having:
cat.jpg
cat (1).jpg
cat (2).jpg

This saves space and clutter. After checking my own input folder, I have 800+ images that are duplicates that were resaved with incremented file names amounting to more than 5GB of duplicated data.

* fixed typo in expression

* Add TLS Support

* Add to readme

* Add guidance for windows users on generating certificates

* Add guidance for windows users on generating certificates

* Fix typo

Logging level now defaults to info. --verbose sets it to debug.

* wip per user data

* Rename, hide menu

* better error
rework default user

* store pretty

* Add userdata endpoints
Change nodetemplates to userdata

* add multi user message

* make normal arg

* Fix tests

* Ignore user dir

* user tests

* Changed to default to browser storage and add server-storage arg

* fix crash on empty templates

* fix settings added before load

* ignore parse errors

A POST request to /free with: {"unload_models":true}
will unload models from vram.

A POST request to /free with: {"free_memory":true}
will unload models and free all cached data from the last run workflow.

If an error occurs while retrieving object_info, only the node that encountered the error should be handled as an exception, while the information for the other nodes should continue to be processed normally.

Try to prevent JS search from breaking on pathnames with square
brackets.

Co-authored-by: Lt.Dr.Data <lt.dr.data@gmail.com>

* support preview mode for mask editor.
* use original file reference instead of loaded frontend blob

bugfix:
* prevent file open dialog when save to load image

* bugfix: cannot clear previous mask painted image's alpha

* bugfix

* bugfix

---------
Co-authored-by: Lt.Dr.Data <lt.dr.data@gmail.com>

* To reduce bandwidth traffic in a remote environment, a lossy compression-based preview mode is provided for displaying simple visualizations in node-based widgets.

* Added 'preview=[image format]' option to the '/view' API.
* Updated node to use preview for displaying images as widgets.
* Excluded preview usage in the open image, save image, mask editor where the original data is required.

* Made preview_format parameterizable for extensibility.

* default preview format changed: jpeg -> webp

* Support advanced preview_format option.
- grayscale option for visual debugging
- quality option for aggressive reducing

L?;format;quality?

ex)
jpeg => rgb, jpeg, quality 90
L;webp;80 => grayscale, webp, quality 80
L;png => grayscale, png, quality 90
webp;50 => rgb, webp, quality 50

* move comment

* * add settings for preview_format
* default value is ''(= don't reencode)

---------
Co-authored-by: Lt.Dr.Data <lt.dr.data@gmail.com>