This is simply a collection of scripts to make my life easier.
A simple script to automatically click repeatedly via a toggle switch. The time in between clicks can be changed by setting the SLEEP_TIME variable to appropriate value in milliseconds.
A script to crop an image in an intelligent manner trying to keep the most important parts.
Given an image the script currently maximises the crop location w.r.t. image gradients. If requested the image is first resized to fit one crop dimension.
opencv-pythonnumpypillow
crop.py [-h] [-f] [-o OUT_FILE] img_path crop_size
positional arguments:
img_path Image to crop
crop_size Crop size as WxH
optional arguments:
-h, --help show this help message and exit
-f, --fit Resize image to fit one crop dimension
-o OUT_FILE, --out_file OUT_FILE
Output file
Supply the image path, the crop size and optionally the fit parameter and output file. The crop size must be specified as WxH (e.g. 500x500). If the crop size is bigger than the image, an error is printed and the script terminates. The --fit parameter if specified resizes the image (while maintaining the aspect ratio) to fit one of the crop dimensions. If the output file is not specified the output is placed in the same directory as the image with the name <image>_cropped.png
A good and a bad example.
| Image | Crop without fit | Crop with fit |
|---|---|---|
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 |
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(Images courtesy of Unsplash)
It works well if the actual region of interest has the most edges, otherwise it fails since it only really looks at the density of edges in the image to decide the most important region
A simple user script to redirect mobile english wikipedia links to their desktop versions. The script replaces *.m.wikipedia.org with *.wikipedia.org in url to achieve this.
A script to automatically login to fortinet firewall captive portal.
Given a username and password this script automatically monitors the network and logs in to the fortinet captive portal when needed. It also send keepalive requests periodically to maintain the login.
requests
fortiauth.py [-h] [-u USERNAME] [-p PASSWORD] [-r RETRY_TIME] [-k KEEPALIVE_TIME]
optional arguments:
-h, --help show this help message and exit
-u USERNAME, --username USERNAME
Username
-p PASSWORD, --password PASSWORD
Password
-r RETRY_TIME, --retry_time RETRY_TIME
Seconds to wait before retrying
-k KEEPALIVE_TIME, --keepalive_time KEEPALIVE_TIME
Seconds to wait between keepalives
If username/password is not supplied the script will prompt for them. By default retry_time is 30s and keepalive_time is 60s.
This script takes a directory as input and shows all images inside it as a gallery.
The script scans a given directory for supported image files. It then generate a HTML page for a gallery populated with found images. Once the HTML file has been created, the gallery is shown using the default web browser. Supports keyboard and mouse navigation.
pillowtqdm
gallery [-h] [-r] [-t HEIGHT] [-p PADDING] [-n] [-o PORT] [-b ...] dir_path
positional arguments
dir_path Directory containing the images
optional arguments:
-h, --help show this help message and exit
-r, --randomize Randomize the order of the images
-t HEIGHT, --height HEIGHT
Height of each row in pixels
-p PADDING, --padding PADDING
Padding between images
-n, --no_resize Do not resize images for thumnails.
-o PORT, --port PORT Port to use for the server.
-b ..., --browser ...
Custom browser command (arguments supported)
The gallery is laid out as shown in this example.
(Images courtesy of Unsplash)
The images can be clicked to go into single view mode, where only that image is shown. Standard left/right keyboard navigation is supported, as is +, -, 0 for zooming.
By default padding of 5px is used but can be overridden using --padding parameter. Similarly the default height of each row is 300px and can be overridden by specifying --height.
If --randomize is specified, the order of the images will be randomized (it will still try to keep multipart images, such as img1, img2, etc., together). Without --randomize the images are laid out in alphabetical order.
By default all images are resized for thumbnails. Using --no_resize disables this, which means the gallery launches much faster but images may load slowly if they are large.
The server uses 8000 as the default port, but it can be overridden using --port. Useful for launching multiple instances.
Finally, a custom browser can be used via the parameter --browser. Arguments to said browser command can also be provided.
NOTE: --browser should be specified at the very end since any argument following it is considered part of the browser command.
A simple script that converts gif to mkv.
This script takes a animated gif image and converts it to H.265 video in mkv container using imagemagick, ffmpeg and mkvmerge. The last frame is duplicated to make sure last frame delay is not dropped.
ffmpegmkvmergepillow
gif2mkv.py [-h] [--out_file OUT_FILE] [--bg_color BG_COLOR] gif_file
positional arguments:
gif_file gif file to convert
optional arguments:
-h, --help show this help message and exit
--out_file OUT_FILE output file
--bg_color BG_COLOR the background color as a hex code eg. #2f213d
Directly converting from gif to H.265 encoded mkv using ffmpeg causes certain issues such as dropping the last frame delay. This script tries to rectify that.
The script extracts frames from gif using imagemagick and composes them onto a solid background color. It then checks whether the gif has a constant or variable fps and proceeds accordingly. For constant fps the encoding is straight forward and uses only ffmpeg. However, for variable fps ffmpeg's concat demuxer does not always produce proper timings (based on our experiments). As such, we first encode using ffmpeg at a constant fps followed by setting timecodes explicitly using mkvmerge. The last frame is also duplicated in both cases so that it is shown properly.
This script takes a directory as input and produces a CBZ file as output.
Given a directory with images, it first checks all images for supported formats and possible corruption. The images are then renamed (optionally) and packed into a zip/cbz file. If specified the original image files and directory are deleted.
pillowrich
makecbz.py [-h] [-n] [-d] dirs [dirs ...]
positional arguments:
dirs Directory(s) containing the images
optional arguments:
-h, --help show this help message and exit
-n, --no_rename Don't rename files
-d, --delete Delete original files
Supply a directory or a list of directories (of images) to convert them into CBZ files. If there are non-image files, non-supported formats or corrupted images then a list of such files is printed out. Certain file names (hardcoded) are excluded from such a check.
If --no-rename is specified the original file names of the images are kept, otherwise they are renamed as 01.jpg, 02.jpg, 03.jpg, ... (the numbers are padded with as many zeros as required, with a minimum of 2 digits). --delete if specified deletes the original image files as well as the directory.
A script implementing a simple http server with custom cache control headers. Usage is same as http.server.
This script adds an extra button beside the search button in nyaa.si, which collects the magnet links for all of the torrents listed in the current page/screen and copies them to the clipboard.
Primary use is searching for torrents of a series and grabbing all magnet links (say for all episodes) in one go.
A simple password generator.
Generates a secure random password of a given length using the secrets library. By default passwords include lowercase letters, uppercase letters and digits, but not symbols. Options are provided to enable or disable any of the afore mentioned sets. Additionally one can also provide a set of custom symbols.
pyperclip
passgen [-h] [-l LENGTH] [-a] [-na] [-A] [-nA] [-1] [-n1] [-@] [-n@] [--valid_symbols VALID_SYMBOLS] [-c]
optional arguments:
-h, --help show this help message and exit
-l LENGTH, --length LENGTH
Length of the generated password
-a, --lowercase Use lowercase letters
-na, --no_lowercase Don't use lowercase letters
-A, --uppercase Use uppercase letters
-nA, --no_uppercase Don't use uppercase letters
-1, --digits Use digits
-n1, --no_digits Don't use digits
-@, --symbols Use symbols
-n@, --no_symbols Don't use symbols
--valid_symbols VALID_SYMBOLS
Provide a string of characters to use as symbols
-c, --clipboard Copy generated password to clipboard instead of displaying it
The length of the password can be specified using --length (Default is 15 characters). --lowercase, --no_lowercase, --uppercase, --no_uppercase, --digits, --no_digits, --symbols, --no_symbols control which characters can be used to generate the password. In addition one can provide a custom string of characters via --valid_symbols to act as the symbols set. If --clipboard is specified the password is copied to clipboard using pyperclip, otherwise it is displayed.
Starts a sandbox with provided configuration options.
SYNTAX
Start-Sandbox.ps1 [[-vGPU] <String>] [[-Networking] <String>] [[-MappedFolders] <Hashtable[]>]
[[-LogonCommand] <String>] [[-AudioInput] <String>] [[-VideoInput] <String>] [[-ProtectedClient] <String>]
[[-PrinterRedirection] <String>] [[-ClipboardRedirection] <String>] [[-MemoryInMB] <Int32>] [<CommonParameters>]
PARAMETERS
-vGPU <String>
Enable or disable vGPU. If not provided default is used.
-Networking <String>
Disable networking. If not provided default is used.
-MappedFolders <Hashtable[]>
Array of folders to map in the sandbox. Input should be an array of hashmaps with keys HostFolder,
SandboxFolder and ReadOnly.
-LogonCommand <String>
Command to execute upon logging on.
-AudioInput <String>
Enable or disable audio input. If not provided default is used.
-VideoInput <String>
Enable or disable video input. If not provided default is used.
-ProtectedClient <String>
Enable or disable protected client. If not provided default is used.
-PrinterRedirection <String>
Enable or disable printer redirection. If not provided default is used.
-ClipboardRedirection <String>
Disable clipboard redirection. If not provided default is used.
-MemoryInMB <Int32>
The memory to be used in MB.
<CommonParameters>
This cmdlet supports the common parameters: Verbose, Debug,
ErrorAction, ErrorVariable, WarningAction, WarningVariable,
OutBuffer, PipelineVariable, and OutVariable. For more information, see
about_CommonParameters (https:/go.microsoft.com/fwlink/?LinkID=113216).
Uses provided configuration options to create a temporary .wsb file. Windows Sandbox is then started with this configuration. Supports all current configuration options available for Windows Sandbox.
A script to redirect image urls from twitter to show the original image rather than one of the twitter resized versions. Simply replaces the last part of image urls with =orig.
A script to convert a text file from one encoding to another.
Both input and output encodings can be specified. If input encoding is not specified best guess is used. In addition one can specify line endings to use for the output file. If no specific line ending is provided, line endings are the same as in input file.
charset_normalizer
txtconv [-h] [-f FROM_] [-t TO] [-l {lf,crlf,cr}] [-o OUT_FILE] [--overwrite] txt_file
positional arguments:
txt_file Text file to process
optional arguments:
-h, --help show this help message and exit
-f FROM_, --from FROM_
Source encoding to convert from
-t TO, --to TO Target encoding to convert to
-l {lf,crlf,cr}, --newline {lf,crlf,cr}
Line ending to use
-o OUT_FILE, --out_file OUT_FILE
Output file
--overwrite Overwrite text file
Input and output encoding can be specified using --from and --to respectively. If no input encoding is specified charset_normalizer is used to detect it. The default output encoding is UTF-8. Line endings can be specified using --newline (Valid choices are lf, crlf and cr). If --overwrite is specified, the input file is overwritten, otherwise a new output file is created. Output file name may be provided using --out_file.